合并路由文件

- 为conquerPackage模块添加过渡页面路由并实现页面跳转逻辑
- 新增通用多图上传组件Upload，支持多种模式与图片操作功能
- 新增任务相关的API及Model基础文件
- 注释课前课中页面的测试试题内容

analyze_ctrl.txt

@@ -0,0 +1,76 @@
+Resolving dependencies...
+Downloading packages...
+  _fe_analyzer_shared 96.0.0 (108.0.0 available)
+  analyzer 10.2.0 (14.4.0 available)
+  archive 4.2.0 (4.3.0 available)
+  build 4.0.7 (4.0.11 available)
+  build_runner 2.15.1 (2.16.1 available)
+  cached_network_image 3.4.1 (4.0.2 available)
+  cached_network_image_platform_interface 4.1.1 (5.0.2 available)
+  cached_network_image_web 1.3.1 (2.0.2 available)
+  camera_android_camerax 0.7.4+7 (0.7.5 available)
+  camera_avfoundation 0.10.3 (0.11.0 available)
+  camera_platform_interface 2.13.1 (2.14.0 available)
+  camera_web 0.3.5+5 (0.3.5+6 available)
+  chewie 1.14.0 (1.17.2 available)
+  clock 1.1.2 (1.1.3 available)
+  code_assets 1.2.1 (2.1.0 available)
+  cross_file 0.3.5+5 (0.4.0 available)
+  dart_style 3.1.7 (3.1.13 available)
+  dbus 0.7.15 (0.8.0 available)
+  equatable 2.1.0 (3.0.0 available)
+  flutter_cache_manager 3.4.2 (3.4.5 available)
+  flutter_local_notifications 22.3.0 (22.3.1 available)
+  flutter_secure_storage 10.3.1 (11.2.0 available)
+  flutter_secure_storage_darwin 0.3.2 (0.4.3 available)
+  flutter_secure_storage_linux 3.0.2 (3.0.3 available)
+  flutter_secure_storage_platform_interface 2.0.3 (2.1.1 available)
+  flutter_widget_from_html_core 0.17.3 (0.17.4 available)
+  go_router 17.5.0 (18.0.1 available)
+  hooks 2.0.2 (2.2.0 available)
+  image 4.9.2 (4.10.1 available)
+  image_picker_android 0.8.13+22 (0.8.13+23 available)
+  image_picker_ios 0.8.13+7 (0.8.13+8 available)
+  internet_connection_checker_plus 3.1.1 (3.1.2 available)
+  matcher 0.12.19 (0.12.20 available)
+  material_color_utilities 0.13.0 (0.13.1 available)
+  meta 1.18.0 (1.19.0 available)
+  nm 0.5.0 (0.6.0 available)
+  objective_c 9.5.0 (9.6.0 available)
+  octo_image 2.1.0 (2.1.1 available)
+  package_config 2.2.0 (3.0.0 available)
+  package_info_plus 10.0.0 (10.2.1 available)
+  permission_handler 11.4.0 (13.0.2 available)
+  permission_handler_android 12.1.0 (14.1.0 available)
+  permission_handler_apple 9.6.1 (9.6.2 available)
+  platform 3.1.6 (3.2.0 available)
+  record_use 0.6.0 (1.1.1 available)
+  share_plus 13.2.0 (13.3.0 available)
+  source_gen 4.2.4 (4.3.0 available)
+  sqflite 2.4.3 (2.4.4 available)
+  sqflite_android 2.4.3 (2.4.4 available)
+  sqflite_common 2.5.11 (2.5.13 available)
+  sqflite_darwin 2.4.3+1 (2.4.4 available)
+  sqflite_platform_interface 2.4.1 (2.4.2 available)
+  stack_trace 1.12.1 (1.12.2 available)
+  synchronized 3.4.1+2 (3.4.2 available)
+  test_api 0.7.11 (0.7.14 available)
+  vector_math 2.2.0 (2.4.3 available)
+  wakelock_plus 1.6.0 (1.8.0 available)
+  webdriver 3.1.0 (3.2.0 available)
+  wechat_assets_picker 9.8.0 (10.1.3 available)
+Got dependencies!
+59 packages have newer versions incompatible with dependency constraints.
+Try `flutter pub outdated` for more information.
+Analyzing controllers...                                        
+
+   info - The import of 'package:new_learn/core/utils/question/question_parser_base.dart' is unnecessary because all of the used elements are also provided by the import of 'package:new_learn/core/utils/question/question_parser.dart'. Try removing the import directive - lib\features\conquerpackage\classexercises\controllers\exercise_load.dart:16:8 - unnecessary_import
+   info - The import of 'package:new_learn/core/utils/question/question_parser_base.dart' is unnecessary because all of the used elements are also provided by the import of 'package:new_learn/core/utils/question/question_parser.dart'. Try removing the import directive - lib\features\conquerpackage\classexercises\controllers\exercise_submit.dart:23:8 - unnecessary_import
+
+flutter : 2 issues found. (ran in 3.2s)
+At line:15 char:2543
++ ... pp_Flutter; flutter analyze lib/features/conquerPackage/classExercise ...
++                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    + CategoryInfo          : NotSpecified: (2 issues found. (ran in 3.2s):String) [], RemoteException
+    + FullyQualifiedErrorId : NativeCommandError
+ 

lib/core/api/auth/api.dart

@@ -20,8 +20,7 @@ import 'package:new_learn/core/storage/user_storage.dart';
 ///   updateUserAvatar         → 更改用户头像
 ///
 /// 二、后续继续写（对齐 Vue，用到再加）：
-///   checkStudyPackStatus / setChangeUserOnline
-///   getUserPointLevel / UpdateGuideStatus / UpdateReportStatus
+///   checkStudyPackStatus / setChangeUserOnline / getUserPointLevel
 ///
 /// 三、高频坑：
 ///   1. 登录密码 MD5 加密（对齐 Vue stringToMd5），提交前在 Api 层完成；
@@ -157,6 +156,15 @@ class UserApi {
     await DioClient.instance.post('/api/v1/User/ChangeShowAfterReport');
   }
 
+  /// 更新攻克报告引导状态（报告页引导只出现一次，默认 false，触发后变 true）
+  /// → POST /api/v1/User/ChangeShowGuide
+  ///
+  /// 对齐 Vue api/user/index.ts 的 UpdateGuideStatus()，
+  /// 在攻克报告页 GuideModal 关闭时调用。
+  static Future<void> changeShowGuide() async {
+    await DioClient.instance.post('/api/v1/User/ChangeShowGuide');
+  }
+
   /// MD5 加密（UniApp stringToMd5 的等价实现）
   static String _md5(String text) {
     return md5.convert(utf8.encode(text)).toString();

lib/core/api/conquerPackage/beforeDuringClass/api.dart

@@ -0,0 +1,97 @@
+import 'package:new_learn/core/api/conquerPackage/beforeDuringClass/model.dart';
+import 'package:new_learn/core/network/dio_client.dart';
+
+/// ============================================================
+/// 【课前课中模块接口】讲义列表 / 学习时长更新 / 提交报告
+///
+/// 对标 Vue 端 api/task/index.ts 中的相关接口：
+///
+///   getListByRecordHandout
+///     —— 根据学习记录获取讲义列表
+///        GET  /api/v1/Handout/GetListByRecord/{recordId}
+///
+///   startOvercome
+///     —— 开始/继续攻克学习包（返回 recordId 等）
+///        POST /api/v1/StudyPack/StartOvercome/{packId}
+///
+///   renewHandoutTime
+///     —— 更新讲义学习时长
+///        POST /api/v1/Handout/RenewTime
+///
+///   getSubmitReport
+///     —— 获取攻克报告（view 模式数据源）
+///        GET  /api/v1/StudyPack/GetReport/{recordId}
+///
+///   getRecord
+///     —— 获取攻克记录信息（过渡页使用）
+///        GET  /api/v1/StudyPack/GetRecord/{recordId}
+///
+/// 注意：
+///   - 页面只调这里，不直接碰 Dio；
+///   - 异常不在 catch，交页面统一处理；
+///   - view 模式下接口返回的 handouts 列表格式一致，统一走 HandoutListResponse。
+/// ============================================================
+class BeforeDuringClassApi {
+  BeforeDuringClassApi._();
+
+  static final BeforeDuringClassApi instance = BeforeDuringClassApi._();
+
+  /// 根据学习记录获取讲义列表 → GET /api/v1/Handout/GetListByRecord/{recordId}
+  Future<HandoutListResponse> getListByRecordHandout(String recordId) async {
+    final data = await DioClient.instance.get(
+      '/api/v1/Handout/GetListByRecord/$recordId',
+    );
+    return HandoutListResponse.fromJson(data);
+  }
+
+  /// 更新讲义学习时长 → POST /api/v1/Handout/RenewTime
+  ///
+  /// [id]        讲义 id
+  /// [courseId]  课程 id
+  /// [startTime] 开始时间 ISO 字符串
+  /// [endTime]   结束时间 ISO 字符串
+  Future<void> renewHandoutTime({
+    required String id,
+    required String courseId,
+    required String startTime,
+    required String endTime,
+  }) async {
+    await DioClient.instance.post(
+      '/api/v1/Handout/RenewTime',
+      data: {
+        'id': id,
+        'courseId': courseId,
+        'startTime': startTime,
+        'endTime': endTime,
+      },
+    );
+  }
+
+  /// 获取攻克报告（view 模式） → GET /api/v1/StudyPack/GetReport/{recordId}
+  ///
+  /// 返回结构中 handouts 字段对应讲义列表。
+  Future<HandoutListResponse> getSubmitReport(String recordId) async {
+    final data = await DioClient.instance.get(
+      '/api/v1/StudyPack/GetReport/$recordId',
+    );
+    // 报告里 handouts 可能在 data.handouts 下
+    if (data is Map<String, dynamic>) {
+      final payload = data['data'] as Map<String, dynamic>? ?? data;
+      return HandoutListResponse.fromJson(payload['handouts']);
+    }
+    return const HandoutListResponse();
+  }
+
+  /// 获取攻克记录信息 → GET /api/v1/StudyPack/GetRecord/{recordId}
+  ///
+  /// 过渡页使用：获取攻克包名称、攻克标准、是否有题目等。
+  Future<OvercomeRecordInfo> getRecord(String recordId) async {
+    final data = await DioClient.instance.get(
+      '/api/v1/StudyPack/GetRecord/$recordId',
+    );
+    if (data is Map<String, dynamic>) {
+      return OvercomeRecordInfo.fromJson(data);
+    }
+    return const OvercomeRecordInfo();
+  }
+}

lib/core/api/conquerPackage/beforeDuringClass/model.dart

@@ -0,0 +1,219 @@
+/// ============================================================
+/// 【课前课中模块模型】讲义列表 / 材料 / 笔记
+///
+/// 对标 Vue 端 api/task/type.ts 中的 Handout 相关类型。
+/// 序列化：手动 fromJson，兼容 {code, message, data: {...}} 响应壳。
+/// ============================================================
+library;
+
+import 'package:new_learn/core/api/public_upload/model.dart';
+
+/// 讲义材料类型
+enum HandoutMaterialType {
+  video(1), // 视频
+  audio(2), // 音频
+  text(3), // 文本
+  unknown(0);
+
+  final int value;
+  const HandoutMaterialType(this.value);
+
+  factory HandoutMaterialType.fromInt(int? v) =>
+      HandoutMaterialType.values.firstWhere(
+        (e) => e.value == v,
+        orElse: () => HandoutMaterialType.unknown,
+      );
+}
+
+/// 讲义材料项（视频/音频/文本）
+class HandoutMaterial {
+  const HandoutMaterial({
+    this.id = '',
+    this.pageIndex = 0,
+    this.materialType = HandoutMaterialType.unknown,
+    this.materialContent = '',
+  });
+
+  final String id; // 材料 id
+  final int pageIndex; // 页码
+  final HandoutMaterialType materialType; // 材料类型
+  final String materialContent; // 内容（URL 或 HTML 文本）
+
+  factory HandoutMaterial.fromJson(Map<String, dynamic> json) {
+    return HandoutMaterial(
+      id: json['id']?.toString() ?? '',
+      pageIndex: _parseInt(json['pageIndex']),
+      materialType:
+          HandoutMaterialType.fromInt(_parseInt(json['materialType'])),
+      materialContent: json['materialContent'] as String? ?? '',
+    );
+  }
+
+  @override
+  String toString() {
+    return 'HandoutMaterial{id: $id, pageIndex: $pageIndex, '
+        'type: ${materialType.name}, content: '
+        '${materialContent.length > 50 ? '${materialContent.substring(0, 50)}...' : materialContent}}';
+  }
+}
+
+/// 单页讲义
+class HandoutItem {
+  const HandoutItem({
+    this.id = '',
+    this.handoutPageId = '',
+    this.name = '',
+    this.title = '',
+    this.content = '',
+    this.planStudyTimeSecond = 0,
+    this.planStudyRemainTimeSecond = 0,
+    this.studyTimeSecond = 0,
+    this.isFinishPlanTime = false,
+    this.isUploadNotes = false,
+    this.materials = const [],
+    this.notes = const [],
+  });
+
+  final String id; // 讲义 id（用于 RenewTime / NoteAdd）
+  final String handoutPageId; // 讲义页 id
+  final String name; // 名称（页面顶部标题）
+  final String title; // 标题（NavBar 显示）
+  final String content; // 正文（富文本 HTML）
+  final int planStudyTimeSecond; // 建议学习时长（秒）
+  final int planStudyRemainTimeSecond; // 剩余学习时长（秒）
+  final int studyTimeSecond; // 已学习时长（秒）
+  final bool isFinishPlanTime; // 是否已完成建议时长
+  final bool isUploadNotes; // 是否必须上传笔记
+  final List<HandoutMaterial> materials; // 材料列表
+  final List<NoteImage> notes; // 笔记图片列表
+
+  /// 深拷贝（用于修改某字段后触发 setState）
+  HandoutItem copyWith({
+    String? id,
+    String? handoutPageId,
+    String? name,
+    String? title,
+    String? content,
+    int? planStudyTimeSecond,
+    int? planStudyRemainTimeSecond,
+    int? studyTimeSecond,
+    bool? isFinishPlanTime,
+    bool? isUploadNotes,
+    List<HandoutMaterial>? materials,
+    List<NoteImage>? notes,
+  }) {
+    return HandoutItem(
+      id: id ?? this.id,
+      handoutPageId: handoutPageId ?? this.handoutPageId,
+      name: name ?? this.name,
+      title: title ?? this.title,
+      content: content ?? this.content,
+      planStudyTimeSecond: planStudyTimeSecond ?? this.planStudyTimeSecond,
+      planStudyRemainTimeSecond:
+          planStudyRemainTimeSecond ?? this.planStudyRemainTimeSecond,
+      studyTimeSecond: studyTimeSecond ?? this.studyTimeSecond,
+      isFinishPlanTime: isFinishPlanTime ?? this.isFinishPlanTime,
+      isUploadNotes: isUploadNotes ?? this.isUploadNotes,
+      materials: materials ?? this.materials,
+      notes: notes ?? this.notes,
+    );
+  }
+
+  factory HandoutItem.fromJson(Map<String, dynamic> json) {
+    final materials = (json['materials'] as List<dynamic>? ?? const [])
+        .whereType<Map<String, dynamic>>()
+        .map(HandoutMaterial.fromJson)
+        .toList();
+    final notes = (json['notes'] as List<dynamic>? ?? const [])
+        .whereType<Map<String, dynamic>>()
+        .map(NoteImage.fromJson)
+        .toList();
+    return HandoutItem(
+      id: (json['id']?.toString()) ?? '',
+      handoutPageId: (json['handoutPageId']?.toString()) ?? '',
+      name: json['name'] as String? ?? json['title'] as String? ?? '',
+      title: json['title'] as String? ?? json['name'] as String? ?? '',
+      content: json['content'] as String? ?? '',
+      planStudyTimeSecond: _parseInt(json['planStudyTimeSecond']),
+      planStudyRemainTimeSecond: _parseInt(json['planStudyRemainTimeSecond']),
+      studyTimeSecond: _parseInt(json['studyTimeSecond']),
+      isFinishPlanTime:
+          json['ISFinishPlanTime'] as bool? ?? json['isFinishPlanTime'] as bool? ?? false,
+      isUploadNotes: json['isUploadNotes'] as bool? ?? false,
+      materials: materials,
+      notes: notes,
+    );
+  }
+
+  @override
+  String toString() {
+    return 'HandoutItem{id: $id, name: $name, planTime: $planStudyTimeSecond, '
+        'studyTime: $studyTimeSecond, isFinishPlanTime: $isFinishPlanTime, '
+        'isUploadNotes: $isUploadNotes, materials: ${materials.length}, '
+        'notes: ${notes.length}}';
+  }
+}
+
+/// 攻克记录信息（过渡页使用，对标 Vue GetRecordData 返回值）
+///
+/// 接口：GET /api/v1/StudyPack/GetRecord/{recordId}
+/// 用于过渡页（课前/课中/课后）展示攻克包名称、攻克标准、是否有题目等。
+class OvercomeRecordInfo {
+  const OvercomeRecordInfo({
+    this.id = '',
+    this.name = '',
+    this.overcomeStandard = 0,
+    this.hasQuestion = false,
+  });
+
+  final String id; // 记录 id
+  final String name; // 攻克包名称
+  final int overcomeStandard; // 攻克标准（百分比 0-100）
+  final bool hasQuestion; // 是否有题目
+
+  factory OvercomeRecordInfo.fromJson(Map<String, dynamic> json) {
+    final payload = (json['data'] as Map<String, dynamic>?) ?? json;
+    return OvercomeRecordInfo(
+      id: payload['id']?.toString() ?? '',
+      name: payload['name'] as String? ?? '',
+      overcomeStandard: _parseInt(payload['overcomeStandard']),
+      hasQuestion: payload['hasQuestion'] as bool? ?? false,
+    );
+  }
+}
+
+/// 讲义列表响应（Handout 接口返回的列表）
+class HandoutListResponse {
+  const HandoutListResponse({this.items = const []});
+
+  final List<HandoutItem> items;
+
+  /// 兼容响应壳 {code, message, data: [...]}，也兼容直接返回数组
+  factory HandoutListResponse.fromJson(dynamic data) {
+    List<dynamic> list;
+    if (data is List) {
+      list = data;
+    } else if (data is Map<String, dynamic>) {
+      final payload = data['data'] ?? data['items'] ?? data['handouts'];
+      list = (payload is List) ? payload : const [];
+    } else {
+      list = const [];
+    }
+    return HandoutListResponse(
+      items: list
+          .whereType<Map<String, dynamic>>()
+          .map(HandoutItem.fromJson)
+          .toList(),
+    );
+  }
+}
+
+/// 安全解析 int
+int _parseInt(dynamic value) {
+  if (value == null) return 0;
+  if (value is int) return value;
+  if (value is double) return value.toInt();
+  if (value is num) return value.toInt();
+  if (value is String) return int.tryParse(value) ?? 0;
+  return 0;
+}

lib/core/api/conquerPackage/captureList/model.dart

@@ -16,6 +16,7 @@ class CourseRecord {
     this.accuracyRate = 0,
     this.status = 0,
     this.statusName = '',
+    this.overcomeTimeSecond = 0,
   });
 
   final int id; // 记录 id
@@ -23,6 +24,7 @@ class CourseRecord {
   final int accuracyRate; // 正确率（0-100）
   final int status; // 状态：0 未开始 / 1 进行中 / 2 成功 / 3 失败 等（按后端枚举）
   final String statusName; // 状态名称
+  final int overcomeTimeSecond; // 攻克用时（秒）
 
   factory CourseRecord.fromJson(Map<String, dynamic> json) {
     return CourseRecord(
@@ -31,6 +33,7 @@ class CourseRecord {
       accuracyRate: _parseInt(json['accuracyRate']),
       status: _parseInt(json['status']),
       statusName: json['statusName'] as String? ?? '',
+      overcomeTimeSecond: _parseInt(json['overcomeTimeSecond']),
     );
   }
 }

lib/core/api/conquerPackage/classExercises/api.dart

@@ -0,0 +1,107 @@
+import 'package:new_learn/core/api/conquerPackage/classExercises/model.dart';
+import 'package:new_learn/core/network/dio_client.dart';
+
+/// ============================================================
+/// 【课堂习题模块接口】
+///
+/// 对标 Vue 端 api/task/index.ts、api/userCollect/index.ts：
+///
+///   GetRecordData            GET  /api/v1/StudyPack/GetRecord/{recordId}
+///   GetListByRecordQuestion  GET  /api/v1/Question/GetListByRecord/{recordId}
+///   QuestionRenewTime        POST /api/v1/Question/RenewTime
+///   PushAIGrading            POST /api/v1/Question/PushAIGrading
+///   RecordSubmit             POST /api/v1/StudyPack/RecordSubmit
+///   GetSubmitReport          GET  /api/v1/StudyPack/GetReport/{packId}（60s 超时）
+///   AddUserCollect           POST /api/v1/UserCollect/AddUserCollect
+///   CancleCollect            POST /api/v1/UserCollect/CancleCollect
+///   Feedback                 POST /api/v1/Question/Feedback
+///
+/// 说明：
+///   - RenewTime / PushAIGrading / RecordSubmit 不脱壳，返回原始 data，
+///     由提交控制器读取 code / message / aiGradingCount / id；
+///   - 异常统一抛 ApiException，交页面/控制器处理。
+/// ============================================================
+class ClassExercisesApi {
+  ClassExercisesApi._();
+
+  static final ClassExercisesApi instance = ClassExercisesApi._();
+
+  /// 获取学习记录信息（edit 模式 onLoad 第一步）
+  Future<ClassExercisesRecord> getRecordData(String recordId) async {
+    final data = await DioClient.instance.get(
+      '/api/v1/StudyPack/GetRecord/$recordId',
+    );
+    return ClassExercisesRecord.fromJson(data);
+  }
+
+  /// 根据学习记录获取题目列表
+  Future<ClassExercisesQuestionList> getListByRecordQuestion(
+    String recordId,
+  ) async {
+    final data = await DioClient.instance.get(
+      '/api/v1/Question/GetListByRecord/$recordId',
+    );
+    return ClassExercisesQuestionList.fromJson(data);
+  }
+
+  /// 提交单题作答 / 更新作答时长
+  /// body: {id, childId, courseId, userAnswer, startTime, endTime,
+  ///        answerStatus, index?}
+  /// 返回原始响应（提交失败重试队列会读 requestParams/data 兜底）
+  Future<dynamic> questionRenewTime(Map<String, dynamic> body) {
+    return DioClient.instance.post('/api/v1/Question/RenewTime', data: body);
+  }
+
+  /// 提交 AI 图片批改
+  /// body: {id, childId, courseId, startTime, endTime,
+  ///        answerImgs:[{url,thumbnailUrl}]}
+  Future<dynamic> pushAIGrading(Map<String, dynamic> body) {
+    return DioClient.instance.post(
+      '/api/v1/Question/PushAIGrading',
+      data: body,
+    );
+  }
+
+  /// 交卷
+  /// body: {recordId}；返回 {code,message,aiGradingCount}
+  Future<dynamic> recordSubmit(String recordId) {
+    return DioClient.instance.post(
+      '/api/v1/StudyPack/RecordSubmit',
+      data: {'recordId': recordId},
+    );
+  }
+
+  /// 获取攻克报告（view 模式数据源，题目批改可能耗时，超时 60s）
+  Future<ClassExercisesReport> getSubmitReport(String packId) async {
+    final data = await DioClient.instance.get(
+      '/api/v1/StudyPack/GetReport/$packId',
+      receiveTimeout: const Duration(seconds: 60),
+    );
+    return ClassExercisesReport.fromJson(data);
+  }
+
+  /// 添加收藏 / 错题本
+  /// body: {type, packId, questionId, recordQuestionId}
+  /// 返回原始响应（成功时 res.id 为收藏记录 id）
+  Future<dynamic> addUserCollect(Map<String, dynamic> body) {
+    return DioClient.instance.post(
+      '/api/v1/UserCollect/AddUserCollect',
+      data: body,
+    );
+  }
+
+  /// 取消收藏 / 移出错题本
+  /// body: {type, id}
+  Future<dynamic> cancleCollect(Map<String, dynamic> body) {
+    return DioClient.instance.post(
+      '/api/v1/UserCollect/CancleCollect',
+      data: body,
+    );
+  }
+
+  /// 题目反馈
+  /// body: {id, questionId, feedbackTypes, description, images}
+  Future<dynamic> feedback(Map<String, dynamic> body) {
+    return DioClient.instance.post('/api/v1/Question/Feedback', data: body);
+  }
+}

lib/core/api/conquerPackage/classExercises/model.dart

@@ -0,0 +1,127 @@
+/// ============================================================
+/// 【课堂习题模块模型】接口响应壳解析
+///
+/// 对标 Vue 端：
+///   api/task/index.ts      → GetRecordData / GetListByRecordQuestion
+///                            / GetSubmitReport / RecordSubmit
+///   api/question/index.ts  → RenewTime / PushAIGrading / Feedback
+///
+/// 说明：
+/// 题目字段非常多且解析器（questionParser）会动态增删字段，
+/// 题目列表统一以 `Map<String, dynamic>` 承载，业务侧再包 QuestionModel，
+///   全量保留后端原字段名，不做字段裁剪。
+/// ============================================================
+library;
+
+/// 从响应中取业务 payload（兼容 {code,message,data:{...}} 脱壳）
+Map<String, dynamic> unwrapData(dynamic resp) {
+  if (resp is Map<String, dynamic>) {
+    final data = resp['data'];
+    if (data is Map<String, dynamic>) return data;
+    return resp;
+  }
+  return <String, dynamic>{};
+}
+
+/// GET StudyPack/GetRecord/{recordId} 响应
+class ClassExercisesRecord {
+  const ClassExercisesRecord({
+    this.recordId = '',
+    this.name = '',
+    this.baseSubjectId,
+    this.raw = const {},
+  });
+
+  /// 学习记录 id
+  final String recordId;
+
+  /// 攻克包名称（用于 NavBar 标题：`${name}专项智能攻克`）
+  final String name;
+
+  /// 学科 id（决定 iSFilllankItemUpload：0 输入框 / 1 图片作答）
+  final int? baseSubjectId;
+
+  final Map<String, dynamic> raw;
+
+  factory ClassExercisesRecord.fromJson(dynamic json) {
+    final data = unwrapData(json);
+    return ClassExercisesRecord(
+      recordId:
+          data['recordId']?.toString() ?? data['id']?.toString() ?? '',
+      name: data['name']?.toString() ?? '',
+      baseSubjectId:
+          int.tryParse('${data['baseSubjectId'] ?? ''}'),
+      raw: data,
+    );
+  }
+}
+
+/// GET Question/GetListByRecord/{recordId} 响应
+class ClassExercisesQuestionList {
+  const ClassExercisesQuestionList({
+    this.items = const [],
+    this.raw = const {},
+  });
+
+  /// 原始题目列表（字段全量保留，交给 parseQuestionData 处理）
+  final List<Map<String, dynamic>> items;
+
+  final Map<String, dynamic> raw;
+
+  factory ClassExercisesQuestionList.fromJson(dynamic json) {
+    final data = unwrapData(json);
+    final rawList = data['questions'] ?? data['list'] ?? data['data'];
+    final list = <Map<String, dynamic>>[];
+    if (rawList is List) {
+      for (final item in rawList) {
+        if (item is Map) {
+          list.add(Map<String, dynamic>.from(item));
+        }
+      }
+    }
+    return ClassExercisesQuestionList(items: list, raw: data);
+  }
+}
+
+/// GET StudyPack/GetReport/{packId} 响应（view 模式数据源）
+class ClassExercisesReport {
+  const ClassExercisesReport({
+    this.id = '',
+    this.name = '',
+    this.baseSubjectId,
+    this.questions = const [],
+    this.raw = const {},
+  });
+
+  /// 报告/记录 id（view 模式下作为 recordId 使用）
+  final String id;
+
+  final String name;
+
+  final int? baseSubjectId;
+
+  /// 报告内题目列表（字段全量保留）
+  final List<Map<String, dynamic>> questions;
+
+  final Map<String, dynamic> raw;
+
+  factory ClassExercisesReport.fromJson(dynamic json) {
+    final data = unwrapData(json);
+    final rawList = data['questions'];
+    final list = <Map<String, dynamic>>[];
+    if (rawList is List) {
+      for (final item in rawList) {
+        if (item is Map) {
+          list.add(Map<String, dynamic>.from(item));
+        }
+      }
+    }
+    return ClassExercisesReport(
+      id: data['id']?.toString() ?? data['recordId']?.toString() ?? '',
+      name: data['name']?.toString() ?? '',
+      baseSubjectId: int.tryParse('${data['baseSubjectId'] ?? ''}'),
+      questions: list,
+      raw: data,
+    );
+  }
+}

lib/core/api/public_upload/api.dart

@@ -0,0 +1,80 @@
+import 'package:new_learn/core/api/public_upload/model.dart';
+import 'package:new_learn/core/network/dio_client.dart';
+
+/// ============================================================
+/// 【笔记相关接口】讲义笔记 / 试题笔记
+///
+/// 对应 Vue 端 api/task/index.ts：
+///   HandoutNoteAdd   → POST /api/v1/HandoutNote/Add
+///   HandoutNoteDel   → DELETE /api/v1/HandoutNote/Del/{id}
+///   QuestionNoteAdd  → POST /api/v1/QuestionNote/Add
+///   QuestionNoteDel  → DELETE /api/v1/QuestionNote/Del/{id}
+///
+/// 注意：页面只调这里，不直接碰 Dio；异常不在这里 catch，交页面统一处理。
+/// ============================================================
+class NoteApi {
+  NoteApi._();
+
+  static final NoteApi instance = NoteApi._();
+
+  /// 添加讲义笔记 → POST /api/v1/HandoutNote/Add
+  ///
+  /// [id]       讲义 id
+  /// [url]      原图 URL（OSS 直传后返回）
+  /// [thumbnailUrl] 缩略图 URL
+  Future<NoteImage> handoutNoteAdd({
+    required dynamic id,
+    required String url,
+    required String thumbnailUrl,
+  }) async {
+    final data = await DioClient.instance.post(
+      '/api/v1/HandoutNote/Add',
+      data: {
+        'id': id,
+        'url': url,
+        'thumbnailUrl': thumbnailUrl,
+      },
+    );
+    // 后端统一 {code, message, data} 包装：data 存在取 data，否则用顶层
+    final payload =
+        (data is Map<String, dynamic> && data.containsKey('data'))
+            ? (data['data'] as Map<String, dynamic>?) ?? <String, dynamic>{}
+            : data as Map<String, dynamic>;
+    return NoteImage.fromJson(payload);
+  }
+
+  /// 删除讲义笔记 → DELETE /api/v1/HandoutNote/Del/{id}
+  ///
+  /// 返回 true 表示删除成功
+  Future<bool> handoutNoteDel(dynamic id) async {
+    await DioClient.instance.delete('/api/v1/HandoutNote/Del/$id');
+    return true;
+  }
+
+  /// 添加试题笔记 → POST /api/v1/QuestionNote/Add
+  Future<NoteImage> questionNoteAdd({
+    required dynamic id,
+    required String url,
+    required String thumbnailUrl,
+  }) async {
+    final data = await DioClient.instance.post(
+      '/api/v1/QuestionNote/Add',
+      data: {
+        'id': id,
+        'url': url,
+        'thumbnailUrl': thumbnailUrl,
+      },
+    );
+    final payload =
+        (data is Map<String, dynamic> && data.containsKey('data'))
+            ? (data['data'] as Map<String, dynamic>?) ?? <String, dynamic>{}
+            : data as Map<String, dynamic>;
+    return NoteImage.fromJson(payload);
+  }
+
+  /// 删除试题笔记 → DELETE /api/v1/QuestionNote/Del/{id}
+  Future<bool> questionNoteDel(dynamic id) async {
+    await DioClient.instance.delete('/api/v1/QuestionNote/Del/$id');
+    return true;
+  }
+}

lib/core/api/public_upload/model.dart

@@ -0,0 +1,40 @@
+/// ============================================================
+/// 【笔记图片数据模型】讲义笔记 / 试题笔记
+///
+/// NoteImage 对应 Vue 端上传笔记后返回的图片记录：
+///   - id：笔记记录 id（删除接口用）
+///   - url：原图 URL
+///   - thumbnailUrl：缩略图 URL（列表预览用）
+/// ============================================================
+
+/// 笔记图片项（用于已上传图片列表）
+class NoteImage {
+  const NoteImage({
+    this.id,
+    required this.url,
+    this.thumbnailUrl,
+  });
+
+  /// 服务器返回的笔记 id（删除接口用；本地添加的图片可能没有）
+  final dynamic id;
+
+  /// 图片原图 URL
+  final String url;
+
+  /// 缩略图 URL（为空时用 url 兜底）
+  final String? thumbnailUrl;
+
+  factory NoteImage.fromJson(Map<String, dynamic> json) {
+    return NoteImage(
+      id: json['id'],
+      url: (json['url'] as String?) ?? '',
+      thumbnailUrl: json['thumbnailUrl'] as String?,
+    );
+  }
+
+  Map<String, dynamic> toJson() => {
+        'id': id,
+        'url': url,
+        'thumbnailUrl': thumbnailUrl,
+      };
+}

lib/core/components/audio_player_card.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:just_audio/just_audio.dart';
+import 'media_pause_scope.dart';
 
 /// ============================================================
 /// 【AudioPlayerCard】通用音频播放控制条（在线音频）
@@ -43,7 +44,7 @@ import 'package:just_audio/just_audio.dart';
 ///      不支持（返回 200 全量）→ ExoPlayer 无法字节定位，只能从头重新
 ///      下载，表现就是"点中间段位置被重置回起点"（且第二次打开有系统
 ///      缓存时会看似正常，极易误判）。验收新音频源：
-///      curl -s -D - -o NUL -H "Range: bytes=0-1023" <url> 看状态码。
+///      curl -s -D - -o NUL -H "Range: bytes=0-1023" `<url>` 看状态码。
 /// ============================================================
 class AudioPlayerCard extends StatefulWidget {
   const AudioPlayerCard({
@@ -84,14 +85,18 @@ class AudioPlayerCard extends StatefulWidget {
   final List<double> playbackSpeeds;
 
   @override
-  State<AudioPlayerCard> createState() => _AudioPlayerCardState();
+  AudioPlayerCardState createState() => AudioPlayerCardState();
 }
 
-class _AudioPlayerCardState extends State<AudioPlayerCard>
-    with WidgetsBindingObserver {
+class AudioPlayerCardState extends State<AudioPlayerCard>
+    with WidgetsBindingObserver
+    implements MediaPausable {
   /// 底层播放器（just_audio）
   final AudioPlayer _player = AudioPlayer();
 
+  /// 所属媒体暂停作用域（随挂载位置自动注册/注销）
+  MediaPauseRegistry? _pauseScope;
+
   /// 是否正在加载（setUrl 未完成）
   bool _loading = true;
 
@@ -115,14 +120,33 @@ class _AudioPlayerCardState extends State<AudioPlayerCard>
     _initPlayer();
   }
 
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    // 自动挂到最近的 MediaPauseScope（含 fwfh 富文本内部的播放器）
+    final scope = MediaPauseScope.of(context);
+    if (scope != _pauseScope) {
+      _pauseScope?.unregister(this);
+      _pauseScope = scope;
+      _pauseScope?.register(this);
+    }
+  }
+
   @override
   void dispose() {
+    _pauseScope?.unregister(this);
     WidgetsBinding.instance.removeObserver(this);
     // 必须释放播放器，否则音频解码资源泄漏
     _player.dispose();
     super.dispose();
   }
 
+  /// 暂停播放（切页时由 MediaPauseRegistry 统一调用）
+  @override
+  void pause() {
+    _player.pause();
+  }
+
   /// App 切后台 / 来电 → 自动暂停
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) {
@@ -398,19 +422,11 @@ class _AudioPlayerCardState extends State<AudioPlayerCard>
     );
   }
 
-  /// 标题区：标题 + 地址/缓冲提示小字
+  /// 标题区：标题 + 缓冲提示小字（不展示音频源地址）
   Widget _buildTitle({required bool buffering, required int percent}) {
-    // 小字：缓冲中显示百分比，否则显示源地址
-    final String subText;
-    if (buffering) {
-      subText = '缓冲中 $percent%...';
-    } else if (widget.asset != null) {
-      subText = widget.asset!;
-    } else {
-      subText = widget.url ?? '';
-    }
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
+      mainAxisSize: MainAxisSize.min,
       children: [
         Text(
           widget.title ?? (widget.asset != null ? '本地音频' : '音频'),
@@ -422,16 +438,19 @@ class _AudioPlayerCardState extends State<AudioPlayerCard>
             color: Color(0xFF333333),
           ),
         ),
-        const SizedBox(height: 2),
-        Text(
-          subText,
-          maxLines: 1,
-          overflow: TextOverflow.ellipsis,
-          style: TextStyle(
-            fontSize: 11,
-            color: buffering ? const Color(0xFFF59E0B) : const Color(0xFF999999),
+        // 仅缓冲中展示百分比小字，不展示播放链接 URL
+        if (buffering) ...[
+          const SizedBox(height: 2),
+          Text(
+            '缓冲中 $percent%...',
+            maxLines: 1,
+            overflow: TextOverflow.ellipsis,
+            style: const TextStyle(
+              fontSize: 11,
+              color: Color(0xFFF59E0B),
+            ),
           ),
-        ),
+        ],
       ],
     );
   }

lib/core/components/media_pause_scope.dart

@@ -0,0 +1,50 @@
+import 'package:flutter/widgets.dart';
+
+/// 可被外部暂停的媒体（音频/视频播放器 State 实现）
+abstract class MediaPausable {
+  void pause();
+}
+
+/// 媒体暂停注册表：播放器挂载时注册、卸载时注销，
+/// 暂停时直接遍历注册表，不再运行时递归 visitChildElements，
+/// 避免在 build/翻页动画/element 停用阶段遍历 element 树
+/// 导致的生命周期断言（RenderViewport 收到 RenderErrorBox 等连锁报错）。
+class MediaPauseRegistry {
+  final Set<MediaPausable> _items = <MediaPausable>{};
+
+  void register(MediaPausable item) => _items.add(item);
+
+  void unregister(MediaPausable item) => _items.remove(item);
+
+  /// 暂停注册表里的全部媒体。
+  /// 复制一份再遍历，防止 pause 触发的异步卸载修改集合。
+  void pauseAll() {
+    for (final item in _items.toList(growable: false)) {
+      item.pause();
+    }
+  }
+}
+
+/// 媒体暂停作用域：包裹需要统一暂停媒体的区域（如单个题目页/子题页）。
+/// 子树中的 AudioPlayerCard/VideoPlayerView 会自动注册到最近的作用域。
+class MediaPauseScope extends InheritedWidget {
+  final MediaPauseRegistry registry;
+
+  const MediaPauseScope({
+    super.key,
+    required this.registry,
+    required super.child,
+  });
+
+  /// 查找最近的作用域注册表；不存在返回 null（不建立依赖关系）。
+  static MediaPauseRegistry? of(BuildContext context) {
+    final widget = context
+        .getElementForInheritedWidgetOfExactType<MediaPauseScope>()
+        ?.widget;
+    return widget is MediaPauseScope ? widget.registry : null;
+  }
+
+  @override
+  bool updateShouldNotify(MediaPauseScope oldWidget) =>
+      registry != oldWidget.registry;
+}

lib/core/components/rich_text_content.dart

@@ -1,4 +1,6 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:flutter_svg/flutter_svg.dart';
 import 'package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart';
 import 'package:new_learn/core/components/audio_player_card.dart';
 import 'package:new_learn/core/components/video_player_view.dart';
@@ -20,6 +22,8 @@ import 'package:new_learn/core/components/video_player_view.dart';
 ///   customStylesBuilder  ← 自定义标签样式（如把 .answer 高亮）
 ///   customWidgetBuilder  ← 自定义元素替换（把任意标签换成业务 widget）
 ///   renderMode           ← 渲染模式（默认 column；列表预览可用 listView）
+///   debugImage           ← 是否打印 img 解析日志
+///   assumeRpx            ← HTML 里的 width/height 是否按 rpx 处理
 ///
 /// 三、内置扩展点（本组件已经帮你处理的）：
 ///   1. <audio> 标签 → 自动替换成 AudioPlayerCard（本项目封装的音频控制条）
@@ -27,7 +31,12 @@ import 'package:new_learn/core/components/video_player_view.dart';
 ///   2. <video> 标签 → 自动替换成 VideoPlayerView（本项目内嵌播放器，
 ///      无 Scaffold/AppBar），默认 autoPlay: false（避免富文本里
 ///      多个视频同时解码占内存），取 title 属性作为错误提示；
-///   3. 公式（\(...\) LaTeX）→ 需要 flutter_math_fork，后续扩展。
+///   3. <img> 标签 → 统一接管：
+///      - .svg 走 flutter_svg（带 SSAA 超采样，去锯齿）；
+///      - 位图走 Image.network；
+///      - 公式图（有明确 width/height，或 parent 是行内标签）
+///        用 InlineCustomWidget，按原始尺寸渲染，不缩放；
+///      - 块级大图宽度撑满父容器，高度按比例自适应。
 ///
 /// 四、学生端场景：
 ///   - 字号调节：外部用 Slider 控制 textStyle.fontSize 即可（demo 页示范）；
@@ -52,8 +61,15 @@ class RichTextContent extends StatelessWidget {
     this.customStylesBuilder,
     this.customWidgetBuilder,
     this.renderMode = RenderMode.column,
+    this.htmlWidgetKey,
+    this.debugImage = false,
+    this.assumeRpx = true,
   });
 
+  /// 透传给内部 HtmlWidget 的 key（外部用于调用
+  /// HtmlWidgetState.scrollToAnchor 滚动到 #anchor）
+  final Key? htmlWidgetKey;
+
   /// HTML 字符串（后端返回）
   final String html;
 
@@ -72,31 +88,124 @@ class RichTextContent extends StatelessWidget {
   /// 渲染模式：column（默认，嵌在滚动容器里）/ listView（页面级）
   final RenderMode renderMode;
 
+  /// 是否打印 img 解析日志（定位“图片特别大”时打开）
+  final bool debugImage;
+
+  /// HTML 里的 width/height 是否按 rpx 处理。
+  /// true：750 设计稿，除以 2 再 .w；
+  /// false：直接当 px，走 .w。
+  final bool assumeRpx;
+
+  /// 行内图片最大高度（逻辑像素）。
+  /// 没给 width/height 的图片按这个高度兜底，避免撑满整行。
+  static const double _inlineMaxHeight = 28.0;
+
   @override
   Widget build(BuildContext context) {
     return HtmlWidget(
+      key: htmlWidgetKey,
       html,
       textStyle: textStyle,
       onTapUrl: onTapUrl ?? _defaultOnTapUrl,
-      customStylesBuilder: customStylesBuilder,
-      customWidgetBuilder: _combinedCustomWidget,
+      customStylesBuilder: _combinedStylesBuilder,
+      customWidgetBuilder: _combinedCustomWidget(context),
       renderMode: renderMode,
     );
   }
 
+  /// 合并默认样式 + 用户自定义样式
+  CustomStylesBuilder? get _combinedStylesBuilder {
+    return (element) {
+      final userResult = customStylesBuilder?.call(element);
+      if (element.localName == 'img') {
+        final base = <String, String>{
+          'max-width': '100%',
+          'height': 'auto',
+        };
+        if (userResult != null) base.addAll(userResult);
+        return base;
+      }
+      return userResult;
+    };
+  }
+
   /// 合并默认替换 + 用户自定义替换
-  CustomWidgetBuilder get _combinedCustomWidget => (element) {
-        // 内置：<audio> → 本项目 AudioPlayerCard
+  CustomWidgetBuilder _combinedCustomWidget(BuildContext context) => (element) {
+        // ============================================================
+        // 1. 统一处理 <img>：SVG + 位图
+        // ============================================================
+        if (element.localName == 'img') {
+  final src = element.attributes['src'];
+  if (src == null || src.isEmpty) return null;
+
+  final isSvg = src.toLowerCase().split('?').first.endsWith('.svg');
+
+  // 解析 width / height（有就用，没有就 null）
+  double? parsePx(String? raw) {
+    if (raw == null) return null;
+    return double.tryParse(raw.replaceAll(RegExp(r'[^0-9.]'), ''));
+  }
+
+  double? width = parsePx(element.attributes['width']);
+  double? height = parsePx(element.attributes['height']);
+
+  final style = element.attributes['style'];
+  if (style != null) {
+    final wMatch = RegExp(r'width\s*:\s*([0-9.]+)px').firstMatch(style);
+    final hMatch = RegExp(r'height\s*:\s*([0-9.]+)px').firstMatch(style);
+    width = double.tryParse(wMatch?.group(1) ?? '') ?? width;
+    height = double.tryParse(hMatch?.group(1) ?? '') ?? height;
+  }
+
+   if (isSvg) {
+    return InlineCustomWidget(
+      alignment: PlaceholderAlignment.middle,   // ← 关键
+      child: SvgPicture.network(
+        src,
+        width: width,
+        height: height,
+        fit: BoxFit.fill,
+        clipBehavior: Clip.antiAlias,
+        // SVG 解码/下载期间显示加载动效，否则默认空白
+        placeholderBuilder: (_) =>
+            _buildLoadingPlaceholder(width, height),
+      ),
+    );
+  } else {
+    return InlineCustomWidget(
+      alignment: PlaceholderAlignment.middle,   // ← 关键
+      child: Image.network(
+        src,
+        width: width,
+        height: height,
+        fit: BoxFit.fill,
+        // 网络图片加载期间显示进度小菊花，否则默认空白
+        loadingBuilder: (context, child, loadingProgress) {
+          if (loadingProgress == null) return child;
+          final expected = loadingProgress.expectedTotalBytes;
+          final progress = expected == null
+              ? null
+              : loadingProgress.cumulativeBytesLoaded / expected;
+          return _buildLoadingPlaceholder(width, height, progress);
+        },
+        errorBuilder: (_, __, ___) => const SizedBox.shrink(),
+      ),
+    );
+  }
+}
+
+        // ============================================================
+        // 2. 内置：<audio> → 本项目 AudioPlayerCard
+        // ============================================================
         if (element.localName == 'audio') {
           final src = element.attributes['src'];
           if (src != null && src.isNotEmpty) {
             // 支持 asset:// 协议 → 本地音频（seek 秒响应）
             // 注意：网络源必须支持 HTTP Range（响应 206），
             // 否则 ExoPlayer 无法字节定位，seek 会失效"回到起始"。
-            // 免费测试站（如 samplelib）常返回 200 不支持 Range，请勿用。
             final isAsset = src.startsWith('asset://');
             return Padding(
-              padding: const EdgeInsets.symmetric(vertical: 8),
+              padding: EdgeInsets.symmetric(vertical: 8.h),
               child: AudioPlayerCard(
                 url: isAsset ? null : src,
                 asset: isAsset ? src.substring('asset://'.length) : null,
@@ -105,13 +214,16 @@ class RichTextContent extends StatelessWidget {
             );
           }
         }
-        // 内置：<video> → 本项目 VideoPlayerView（内嵌播放器）
-        // 默认不自动播，避免富文本里多个视频同时解码占内存
+
+        // ============================================================
+        // 3. 内置：<video> → 本项目 VideoPlayerView（内嵌播放器）
+        //    默认不自动播，避免富文本里多个视频同时解码占内存
+        // ============================================================
         if (element.localName == 'video') {
           final src = element.attributes['src'];
           if (src != null && src.isNotEmpty) {
             return Padding(
-              padding: const EdgeInsets.symmetric(vertical: 8),
+              padding: EdgeInsets.symmetric(vertical: 8.h),
               child: VideoPlayerView(
                 url: src,
                 title: element.attributes['title'] ?? '题目视频',
@@ -120,13 +232,36 @@ class RichTextContent extends StatelessWidget {
             );
           }
         }
-        // 透传用户自定义替换（公式等扩展点）
+
+        // ============================================================
+        // 4. 透传用户自定义替换（公式等扩展点）
+        // ============================================================
         return customWidgetBuilder?.call(element);
       };
 
+  /// 图片/SVG 加载中的占位：居中的小菊花（有已知大小时按图片尺寸占位，
+  /// 行内无尺寸图给一个最小兜底盒子，避免占位为 0 看不到动效）
+  Widget _buildLoadingPlaceholder(double? width, double? height,
+      [double? progress]) {
+    return Container(
+      width: width ?? 40.w,
+      height: height ?? _inlineMaxHeight.h,
+      alignment: Alignment.center,
+      child: SizedBox(
+        width: 14.w,
+        height: 14.w,
+        child: CircularProgressIndicator(
+          strokeWidth: 1.5,
+          // 拿不到总字节数时传 null，小菊花保持 indeterminate 匀速旋转
+          value: progress,
+        ),
+      ),
+    );
+  }
+
   /// 默认链接拦截：防止题目里夹带外部危险链接
   static Future<bool> _defaultOnTapUrl(String url) async {
     debugPrint('[RichTextContent] 已拦截外部链接: $url');
     return true;
   }
-}
+}

lib/core/components/upload.dart

@@ -0,0 +1,979 @@
+import 'dart:typed_data';
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/foundation.dart' show compute, kIsWeb;
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:image/image.dart' as img;
+import 'package:new_learn/core/api/public_upload/api.dart';
+import 'package:new_learn/core/api/public_upload/model.dart';
+import 'package:new_learn/core/components/center_toast.dart';
+import 'package:new_learn/core/components/image_preview_viewer.dart';
+import 'package:new_learn/core/network/oss_api.dart';
+import 'package:new_learn/core/network/oss_uploader.dart';
+import 'package:new_learn/core/services/image_processor.dart';
+import 'package:new_learn/core/services/picker_service.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+
+/// ============================================================
+/// 【Upload 组件】多图上传组件（对标 Vue components/Upload/Upload.vue�?
+///
+/// 一、功能：
+///   1. edit 模式：相�?拍照多�?�?压缩 + EXIF 修正 �?OSS 直传 �?
+///      调用业务接口关联笔记 �?本地图片列表刷新
+///   2. view 模式：仅展示图片网格，无添加/删除按钮
+///   3. 点击图片 �?全屏预览（photo_view 双指缩放 + 左右切换�?
+///   4. 底部可配�?拍摄规范"提示文本（title == '上传图片作答' 时显示）
+///
+/// 二、Props 对照�?
+///   - [maxCount]        : 最多上传张数（默认 10�?
+///   - [mode]            : UploadMode.edit / UploadMode.view（默�?edit�?
+///   - [title]           : 标题文案（默�?'上传笔记'�?
+///   - [initialImageList]: 初始已上传图片列�?
+///   - [type]            : 类型：handouts / questions / AIGrading / feedback
+///   - [ids]             : 业务 id（讲�?id / 题目 id�?
+///   - [onChanged]       : 图片列表变化回调（相当于 Vue �?change 事件�?
+///
+/// 三、上传链路（对齐 Vue + my_page.dart 头像上传流程）：
+///   �?PickerService.showPickSheet 选图（含权限前置弹窗�?
+///   �?ImageProcessor.process 压缩 + EXIF 方向修正 + 尺寸过滤
+///   �?OssUploader.uploadImage OSS 直传（scene �?type 映射�?
+///   �?NoteApi 笔记关联（handouts/question 走业务接口，
+///      AIGrading/feedback 仅本地维护列表）
+///
+/// 四、type �?OSS scene / 笔记接口映射�?
+///   type         | UploadScene    | 笔记接口
+///   ─────────────┼────────────────┼────────────
+///   handouts     | note           | HandoutNoteAdd/Del
+///   questions    | note           | QuestionNoteAdd/Del
+///   AIGrading    | aiGrading      | 无（仅本地列表）
+///   feedback     | note           | 无（仅本地列表）
+///
+/// 五、尺寸过滤策略（对齐 Vue filterOversizeImages）：
+///   - handouts / questions 类型：跳过尺寸校验（讲义/题目图可能很大）
+///   - 其它类型：宽高必须在 14~4000 像素之间
+/// ============================================================
+
+/// 上传组件模式
+enum UploadMode { edit, view }
+
+/// 上传组件类型
+enum UploadType { handouts, questions, aiGrading, feedback }
+
+/// 选图后的“原始图 + 压缩处理图”配对
+typedef UploadPair = ({PickedImage origin, ProcessedImage processed});
+
+/// 图片项（统一承载：本地已�?+ 已上传）
+class UploadItem {
+  const UploadItem({
+    this.id,
+    required this.url,
+    this.thumbnailUrl,
+    this.localBytes,
+    this.localEntity,
+    this.isUploading = false,
+  });
+
+  /// 服务器返回的笔记 id（删除用；本地图片无 id�?
+  final dynamic id;
+
+  /// 图片 URL（已上传）或本地路径（未上传�?
+  final String url;
+
+  /// 缩略�?URL
+  final String? thumbnailUrl;
+
+  /// 本地字节（Web 预览用，上传完成后置空）
+  final List<int>? localBytes;
+
+  /// 原生相册实体（原生端缩略图预览用，上传完成后置空�?
+  final dynamic localEntity;
+
+  /// 是否正在上传中（用于显示加载态）
+  final bool isUploading;
+
+  /// 是否为网络图（已上传�?OSS�?
+  bool get isNetwork => url.startsWith('http');
+
+  factory UploadItem.fromNoteImage(NoteImage note) => UploadItem(
+        id: note.id,
+        url: note.url,
+        thumbnailUrl: note.thumbnailUrl,
+      );
+}
+
+class Upload extends StatefulWidget {
+  const Upload({
+    super.key,
+    this.maxCount = 10,
+    this.mode = UploadMode.edit,
+    this.title = '上传笔记',
+    this.initialImageList = const [],
+    this.type = UploadType.handouts,
+    this.ids,
+    this.onChanged,
+  });
+
+  /// 最多上传张�?
+  final int maxCount;
+
+  /// 模式：编�?/ 查看
+  final UploadMode mode;
+
+  /// 标题文案
+  final String title;
+
+  /// 初始图片列表（已上传的网络图�?
+  final List<UploadItem> initialImageList;
+
+  /// 上传类型
+  final UploadType type;
+
+  /// 业务 id（讲�?id / 题目 id�?
+  final dynamic ids;
+
+  /// 列表变化回调
+  final ValueChanged<List<UploadItem>>? onChanged;
+
+  @override
+  State<Upload> createState() => UploadState();
+}
+
+class UploadState extends State<Upload> {
+  final List<UploadItem> _imageList = [];
+  int _uploadingCount = 0;
+  bool _choosing = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _imageList.addAll(widget.initialImageList);
+  }
+
+  @override
+  void didUpdateWidget(covariant Upload oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    // 外部 initialImageList 变化时同步（类似 Vue �?watch defaultImageList�?
+    if (oldWidget.initialImageList != widget.initialImageList) {
+      _imageList
+        ..clear()
+        ..addAll(widget.initialImageList);
+    }
+  }
+
+  // ===================== 对外暴露方法 =====================
+
+  /// 触发选图（等�?Vue �?chooseImage�?
+  Future<void> chooseImage() async => _chooseImage();
+
+  /// 获取当前图片列表
+  List<UploadItem> getImageList() => List.unmodifiable(_imageList);
+
+  /// 正在上传的数�?
+  int get uploadingCount => _uploadingCount;
+
+  /// 是否正在选图
+  bool get choosing => _choosing;
+
+  // ===================== 工具方法 =====================
+
+  void _notifyChanged() {
+    widget.onChanged?.call(List.unmodifiable(_imageList));
+  }
+
+  /// 映射 type �?OSS scene
+  UploadScene get _uploadScene {
+    switch (widget.type) {
+      case UploadType.aiGrading:
+        return UploadScene.aiGrading;
+      case UploadType.handouts:
+      case UploadType.questions:
+      case UploadType.feedback:
+        return UploadScene.note;
+    }
+  }
+
+  /// 是否跳过尺寸校验（讲�?题目大图允许�?
+  bool get _skipSizeLimit =>
+      widget.type == UploadType.handouts ||
+      widget.type == UploadType.questions;
+
+  void _toast(String message) {
+    CenterToast.show(context, message);
+  }
+
+  void _showLoading(String message) {
+    showDialog<void>(
+      context: context,
+      barrierDismissible: false,
+      builder: (_) => PopScope(
+        canPop: false,
+        child: Center(
+          child: Container(
+            padding: EdgeInsets.symmetric(horizontal: 28.w, vertical: 20.h),
+            decoration: BoxDecoration(
+              color: Colors.black87,
+              borderRadius: BorderRadius.circular(10.r),
+            ),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                const CircularProgressIndicator(color: Colors.white),
+                SizedBox(height: 12.h),
+                Text(
+                  message,
+                  style: TextStyle(color: Colors.white, fontSize: 13.sp),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  void _hideLoading() {
+    if (Navigator.of(context, rootNavigator: true).canPop()) {
+      Navigator.of(context, rootNavigator: true).pop();
+    }
+  }
+
+  String _replaceExtension(String fileName, String extension) {
+    final dotIndex = fileName.lastIndexOf('.');
+    final safeExtension = extension.toLowerCase();
+    if (dotIndex <= 0) return '$fileName.$safeExtension';
+    return '${fileName.substring(0, dotIndex)}.$safeExtension';
+  }
+
+  // ===================== 选图 =====================
+
+  Future<void> _chooseImage() async {
+    if (_choosing || _uploadingCount > 0) {
+      _toast('图片上传中，请稍后再选择');
+      return;
+    }
+    final remainCount = widget.maxCount - _imageList.length - _uploadingCount;
+    if (remainCount <= 0) {
+      _toast('最多上传${widget.maxCount}张图片');
+      return;
+    }
+
+    setState(() => _choosing = true);
+    bool processingLoadingShown = false;
+    try {
+      final picked = await PickerService.instance.showPickSheet(
+        context,
+        maxCount: remainCount,
+      );
+      if (picked == null || picked.isEmpty) return;
+
+      // 显示"上传中..."遮罩（压�?+ 尺寸过滤可能耗时几秒�?
+      _showLoading('上传中...');
+      processingLoadingShown = true;
+
+      // 压缩 + EXIF 修正 + 尺寸过滤
+      final List<UploadPair> validList = [];
+
+      for (final img in picked) {
+        final ProcessedImage? processed;
+        if (kIsWeb) {
+          // Web：只有字节，走 bytes 压缩
+          final bytes = img.bytes;
+          if (bytes == null || bytes.isEmpty) continue;
+          processed = await ImageProcessor.process(
+            bytes: bytes,
+            fileName: img.name,
+            maxDimension: 1920,
+          );
+        } else {
+          // 原生：只传文件路径，原图字节不进 Dart 堆、UI 线程不解码
+          final path = img.path;
+          if (path == null || path.isEmpty) continue;
+          processed = await ImageProcessor.processFile(
+            path: path,
+            maxDimension: 1920,
+          );
+        }
+        if (processed == null) {
+          // 压缩失败 / 解码失败 �?跳过
+          continue;
+        }
+
+        if (_skipSizeLimit) {
+          validList.add((origin: img, processed: processed));
+          continue;
+        }
+
+        // 尺寸校验：由 ImageProcessor 内部 min/max 拦截�?
+        // 返回 null 说明尺寸不符合。这里按大小区分提示�?
+        // （ImageProcessor 只返�?null，不区分过小/过大�?
+        //   这里简化为"不符合要�?，与 Vue 的核心提示一致。）
+        validList.add((origin: img, processed: processed));
+      }
+
+      if (validList.isEmpty) {
+        _toast('图片尺寸不符合要求，请重新选择');
+        return;
+      }
+
+      // AIGrading（上传图片作答）：先进入全屏旋转预览，
+      // 用户点“完成”才烘焙旋转并上传；点“取消”则整批放弃（对齐 Vue）
+      List<UploadPair> pairsToUpload = validList;
+      if (widget.type == UploadType.aiGrading) {
+        _hideLoading();
+        processingLoadingShown = false;
+        if (!mounted) return;
+
+        final rotated = await _ImageRotateEditor.open(
+          context,
+          items: validList,
+        );
+        if (rotated == null) return; // 用户取消
+        pairsToUpload = rotated;
+        if (!mounted) return;
+
+        _showLoading('上传中...');
+        processingLoadingShown = true;
+      }
+
+      await _startUpload(pairsToUpload);
+    } catch (e) {
+      _toast('图片处理失败，请重试');
+      debugPrint('[Upload] 选图异常: $e');
+    } finally {
+      if (processingLoadingShown) _hideLoading();
+      if (mounted) setState(() => _choosing = false);
+    }
+  }
+
+  // ===================== 上传 =====================
+
+  Future<void> _startUpload(
+    List<({PickedImage origin, ProcessedImage processed})> items,
+  ) async {
+    if (items.isEmpty) return;
+
+    final canUploadCount =
+        widget.maxCount - _imageList.length - _uploadingCount;
+    final safeEnd = canUploadCount.clamp(0, items.length);
+    final safeItems =
+        safeEnd > 0 ? items.sublist(0, safeEnd) : <({
+          PickedImage origin,
+          ProcessedImage processed
+        })>[];
+    if (safeItems.isEmpty) {
+      _toast('最多上传${widget.maxCount}张图片');
+      return;
+    }
+    if (safeItems.length < items.length) {
+      _toast('最多还能上传${safeItems.length}张图片');
+    }
+
+    final pendingCount = safeItems.length;
+    _uploadingCount += pendingCount;
+
+    try {
+      for (final item in safeItems) {
+        try {
+          final fileName = _replaceExtension(
+            item.origin.name ??
+                'img_${DateTime.now().millisecondsSinceEpoch}.jpg',
+            item.processed.extension,
+          );
+
+          // OSS 直传
+          final url = await OssUploader.uploadImage(
+            bytes: item.processed.bytes,
+            fileName: fileName,
+            contentType: item.processed.contentType,
+            scene: _uploadScene,
+          );
+
+          // 业务接口关联笔记
+          await _noteAdd(url);
+        } finally {
+          _uploadingCount = (_uploadingCount - 1).clamp(0, 999);
+        }
+      }
+      _toast('上传成功');
+    } catch (e) {
+      _toast('笔记上传失败，请检查网络后重试');
+    } finally {
+      if (mounted) setState(() {});
+    }
+  }
+
+  /// 调业务接口添加笔记（�?type 分流�?
+  Future<void> _noteAdd(String url) async {
+    switch (widget.type) {
+      case UploadType.handouts:
+        if (widget.ids != null) {
+          final note = await NoteApi.instance.handoutNoteAdd(
+            id: widget.ids,
+            url: url,
+            thumbnailUrl: url,
+          );
+          if (note.url.isNotEmpty && note.id != null) {
+            setState(() {
+              _imageList.add(UploadItem.fromNoteImage(note));
+            });
+          }
+        } else {
+          setState(() {
+            _imageList.add(UploadItem(url: url, thumbnailUrl: url));
+          });
+        }
+        break;
+
+      case UploadType.questions:
+        if (widget.ids != null) {
+          final note = await NoteApi.instance.questionNoteAdd(
+            id: widget.ids,
+            url: url,
+            thumbnailUrl: url,
+          );
+          if (note.url.isNotEmpty && note.id != null) {
+            setState(() {
+              _imageList.add(UploadItem.fromNoteImage(note));
+            });
+          }
+        } else {
+          setState(() {
+            _imageList.add(UploadItem(url: url, thumbnailUrl: url));
+          });
+        }
+        break;
+
+      case UploadType.aiGrading:
+      case UploadType.feedback:
+        setState(() {
+          _imageList.add(UploadItem(url: url, thumbnailUrl: url));
+        });
+        break;
+    }
+    _notifyChanged();
+  }
+
+  // ===================== 删除 =====================
+
+  Future<void> _removeImg(UploadItem item) async {
+    try {
+      switch (widget.type) {
+        case UploadType.handouts:
+          if (widget.ids != null && item.id != null) {
+            final ok = await NoteApi.instance.handoutNoteDel(item.id);
+            if (ok) {
+              setState(() {
+                _imageList.removeWhere((e) => e.id == item.id);
+              });
+            }
+          }
+          break;
+
+        case UploadType.questions:
+          if (widget.ids != null && item.id != null) {
+            final ok = await NoteApi.instance.questionNoteDel(item.id);
+            if (ok) {
+              setState(() {
+                _imageList.removeWhere((e) => e.id == item.id);
+              });
+            }
+          }
+          break;
+
+        case UploadType.aiGrading:
+        case UploadType.feedback:
+          setState(() {
+            _imageList.removeWhere((e) => e.url == item.url);
+          });
+          break;
+      }
+    } catch (e) {
+      _toast('删除失败，请检查网络后重试');
+    }
+    _notifyChanged();
+  }
+
+  // ===================== 预览 =====================
+
+  void _previewImage(int index) {
+    final items = _imageList
+        .map(
+          (item) => PreviewImageItem(
+            imageProvider: _imageProviderOf(item),
+          ),
+        )
+        .toList();
+    ImagePreviewViewer.show(context, items: items, initialIndex: index);
+  }
+
+  ImageProvider _imageProviderOf(UploadItem item) {
+    if (item.isNetwork) {
+      return CachedNetworkImageProvider(ImgUrl.build(item.url));
+    }
+    if (item.localBytes != null) {
+      return MemoryImage(Uint8List.fromList(item.localBytes!));
+    }
+    return const AssetImage(''); // 兜底
+  }
+
+  // ===================== Build =====================
+
+  @override
+  Widget build(BuildContext context) {
+    // 模式：view 且没有图片时不显示（对齐 Vue v-if）
+    if (widget.mode == UploadMode.edit || _imageList.isNotEmpty) {
+      return _buildUploadBox();
+    }
+    return const SizedBox.shrink();
+  }
+
+  Widget _buildUploadBox() {
+    return Container(
+      padding: EdgeInsets.all(14.w),
+      margin: EdgeInsets.only(bottom: 10.h),
+      decoration: BoxDecoration(
+        color: const Color(0xFFFAFBFD),
+        border: Border.all(color: const Color(0xFFE3ECFF), width: 1.r),
+        borderRadius: BorderRadius.circular(10.r),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          _buildHeader(),
+          _buildGrid(),
+          if (widget.mode == UploadMode.edit &&
+              widget.title == '上传图片作答')
+            _buildTip(),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildHeader() {
+    return Row(
+      children: [
+        Stack(
+          children: [
+            // 标题装饰底图：固定尺寸钉在右下角（对标 background-size: 119rpx auto）
+            Positioned(
+              right: 10.w,
+              bottom: 0,
+              child: Image.network(
+                ImgUrl.build('/StaticResource/2026-04-01/title-bacs.png'),
+                width: 59.5.w,
+                height: 9.h,
+                fit: BoxFit.fill,
+                errorBuilder: (_, _, _) => const SizedBox.shrink(),
+              ),
+            ),
+            Padding(
+              padding: EdgeInsets.only(right: 14.w),
+              child: Text(
+                widget.title,
+                style: TextStyle(
+                  fontSize: 15.sp,
+                  fontWeight: FontWeight.w600,
+                  color: const Color(0xFF1D2B47),
+                ),
+              ),
+            ),
+          ],
+        ),
+        SizedBox(width: 14.w),
+        Text(
+          widget.mode == UploadMode.edit
+              ? '已上传：${_imageList.length}/${widget.maxCount}张'
+              : '共 ${_imageList.length} 张',
+          style: TextStyle(fontSize: 12.sp, color: const Color(0xFFB4C2E0)),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildGrid() {
+    final itemSize = 67.w;
+    final showAdd = widget.mode == UploadMode.edit &&
+        (_imageList.length + _uploadingCount) < widget.maxCount;
+    final totalCount = _imageList.length + (showAdd ? 1 : 0);
+
+    return Padding(
+      padding: EdgeInsets.only(top: 10.h),
+      child: Wrap(
+        spacing: 10.w,
+        runSpacing: 10.h,
+        children: [
+          for (int i = 0; i < _imageList.length; i++)
+            _buildImageItem(_imageList[i], i, itemSize),
+          if (showAdd) _buildAddButton(itemSize),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildAddButton(double size) {
+    return GestureDetector(
+      onTap: _chooseImage,
+      child: Container(
+        width: size,
+        height: size,
+        decoration: BoxDecoration(
+          color: const Color(0xFFF5F8FA),
+          borderRadius: BorderRadius.circular(6.r),
+        ),
+        child: Center(
+          child: Image.network(
+            ImgUrl.build('/StaticResource/2026-04-01/add.png'),
+            width: 19.5.w,
+            height: 19.5.w,
+            errorBuilder: (_, __, ___) => Icon(
+              Icons.add,
+              size: 19.5.w,
+              color: const Color(0xFFB0B8C4),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildImageItem(UploadItem item, int index, double size) {
+    return GestureDetector(
+      onTap: () => _previewImage(index),
+      child: Container(
+        width: size,
+        height: size,
+        decoration: BoxDecoration(
+          color: const Color(0xFFF5F8FA),
+          borderRadius: BorderRadius.circular(6.r),
+        ),
+        clipBehavior: Clip.antiAlias,
+        child: Stack(
+          fit: StackFit.expand,
+          children: [
+            if (item.isNetwork)
+              CachedNetworkImage(
+                imageUrl: ImgUrl.build(item.url),
+                fit: BoxFit.cover,
+                errorWidget: (_, __, ___) => const ColoredBox(
+                  color: Color(0xFFEEF1F5),
+                ),
+              )
+            else if (item.localBytes != null)
+              Image.memory(
+                Uint8List.fromList(item.localBytes!),
+                fit: BoxFit.cover,
+              )
+            else
+              const ColoredBox(color: Color(0xFFEEF1F5)),
+            // 删除按钮
+            if (widget.mode == UploadMode.edit)
+              Positioned(
+                top: 0,
+                right: 0,
+                child: GestureDetector(
+                  onTap: () => _removeImg(item),
+                  child: Image.network(
+                    ImgUrl.build('/StaticResource/2026-04-14/remove.png'),
+                    width: 18.w,
+                    height: 18.w,
+                    errorBuilder: (_, __, ___) => Container(
+                      width: 18.w,
+                      height: 18.w,
+                      decoration: const BoxDecoration(
+                        color: Colors.black54,
+                        shape: BoxShape.circle,
+                      ),
+                      child: const Icon(Icons.close,
+                          size: 12, color: Colors.white),
+                    ),
+                  ),
+                ),
+              ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildTip() {
+    return Padding(
+      padding: EdgeInsets.only(top: 15.h),
+      child: Text(
+        '图片作答拍摄规范：\n'
+        '1. 采光：光线充足，无阴影、无反光遮挡答题区\n'
+        '2. 角度：纸张铺平，垂直俯拍，画面不歪斜\n'
+        '3. 画质：完整拍下整张纸，文字清晰无裁切模糊\n'
+        '4. 卷面：答题区仅留正式作答，草稿另用草稿纸\n'
+        '5. 修改：错处双线划去，旁侧重写，禁止反复涂黑叠写\n'
+        '提示：画面越规整清晰，识别批改越准确',
+        style: TextStyle(fontSize: 12.sp, color: const Color(0xFF999999)),
+      ),
+    );
+  }
+}
+
+/// ============================================================
+/// 全屏旋转预览（对标 Vue components/ImagePreviewPopup）：
+///   - 左右滑动逐张查看；
+///   - “↻ 旋转90°”只改当前图片的视觉角度；
+///   - “完成”才把角度烘焙进图片字节并返回（随后才上传）；
+///   - “取消”/系统返回 → 返回 null，整批放弃。
+/// ============================================================
+class _ImageRotateEditor extends StatefulWidget {
+  const _ImageRotateEditor({required this.items});
+
+  final List<UploadPair> items;
+
+  /// 打开旋转预览；完成返回旋转后的列表，取消返回 null
+  static Future<List<UploadPair>?> open(
+    BuildContext context, {
+    required List<UploadPair> items,
+  }) {
+    return Navigator.of(context).push<List<UploadPair>>(
+      PageRouteBuilder<List<UploadPair>>(
+        opaque: true,
+        transitionDuration: const Duration(milliseconds: 200),
+        reverseTransitionDuration: const Duration(milliseconds: 200),
+        pageBuilder: (_, __, ___) => _ImageRotateEditor(items: items),
+        transitionsBuilder: (_, animation, __, child) =>
+            FadeTransition(opacity: animation, child: child),
+      ),
+    );
+  }
+
+  @override
+  State<_ImageRotateEditor> createState() => _ImageRotateEditorState();
+}
+
+class _ImageRotateEditorState extends State<_ImageRotateEditor> {
+  late final List<int> _angles = List.filled(widget.items.length, 0);
+  final PageController _pageController = PageController();
+  int _currentIndex = 0;
+  bool _busy = false;
+
+  @override
+  void dispose() {
+    _pageController.dispose();
+    super.dispose();
+  }
+
+  void _onPageChanged(int index) => setState(() => _currentIndex = index);
+
+  void _handleRotate() {
+    if (_busy) return;
+    setState(() {
+      _angles[_currentIndex] = (_angles[_currentIndex] + 90) % 360;
+    });
+  }
+
+  Future<void> _handleConfirm() async {
+    if (_busy) return;
+    setState(() => _busy = true);
+    try {
+      final result = <UploadPair>[];
+      for (var i = 0; i < widget.items.length; i++) {
+        final pair = widget.items[i];
+        final angle = _angles[i] % 360;
+        if (angle == 0) {
+          result.add(pair);
+        } else {
+          result.add((
+            origin: pair.origin,
+            processed: await _bakeRotation(pair.processed, angle),
+          ));
+        }
+      }
+      if (mounted) Navigator.of(context).pop(result);
+    } catch (_) {
+      if (mounted) {
+        setState(() => _busy = false);
+        CenterToast.show(context, '图片处理失败，请重试');
+      }
+    }
+  }
+
+  void _handleCancel() {
+    if (_busy) return;
+    Navigator.of(context).pop();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: Colors.black,
+      body: Stack(
+        children: [
+          PageView.builder(
+            controller: _pageController,
+            itemCount: widget.items.length,
+            onPageChanged: _onPageChanged,
+            itemBuilder: (context, index) {
+              return Center(
+                child: AnimatedRotation(
+                  turns: _angles[index] / 360,
+                  duration: const Duration(milliseconds: 200),
+                  child: Image.memory(
+                    widget.items[index].processed.bytes,
+                    fit: BoxFit.contain,
+                  ),
+                ),
+              );
+            },
+          ),
+
+          // 指示点（多图时）
+          if (widget.items.length > 1)
+            Positioned(
+              left: 0,
+              right: 0,
+              bottom: 72.h,
+              child: _buildDots(),
+            ),
+
+          // 底部操作栏
+          Positioned(
+            left: 0,
+            right: 0,
+            bottom: 0,
+            child: _buildFooter(),
+          ),
+
+          // “处理图片中...”遮罩
+          if (_busy)
+            const ColoredBox(
+              color: Colors.black38,
+              child: Center(
+                child: CircularProgressIndicator(color: Colors.white),
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildDots() {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        for (var i = 0; i < widget.items.length; i++)
+          Container(
+            width: 7.w,
+            height: 7.w,
+            margin: EdgeInsets.symmetric(horizontal: 4.w),
+            decoration: BoxDecoration(
+              shape: BoxShape.circle,
+              color: i == _currentIndex
+                  ? Colors.white
+                  : Colors.white.withValues(alpha: 0.3),
+            ),
+          ),
+      ],
+    );
+  }
+
+  Widget _buildFooter() {
+    return SafeArea(
+      top: false,
+      child: Container(
+        padding: EdgeInsets.symmetric(horizontal: 20.w, vertical: 12.h),
+        decoration: const BoxDecoration(color: Color(0xB3000000)),
+        child: Row(
+          children: [
+            _FooterTextButton(label: '取消', onTap: _handleCancel),
+            Expanded(
+              child: Center(
+                child: GestureDetector(
+                  onTap: _handleRotate,
+                  child: Container(
+                    padding: EdgeInsets.symmetric(
+                      horizontal: 20.w,
+                      vertical: 8.h,
+                    ),
+                    decoration: BoxDecoration(
+                      color: const Color(0x26FFFFFF),
+                      borderRadius: BorderRadius.circular(30.r),
+                    ),
+                    child: Text(
+                      '↻ 旋转90°',
+                      style: TextStyle(
+                        fontSize: 14.sp,
+                        color: Colors.white,
+                      ),
+                    ),
+                  ),
+                ),
+              ),
+            ),
+            _FooterTextButton(label: '完成', primary: true, onTap: _handleConfirm),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class _FooterTextButton extends StatelessWidget {
+  const _FooterTextButton({
+    required this.label,
+    required this.onTap,
+    this.primary = false,
+  });
+
+  final String label;
+  final VoidCallback onTap;
+  final bool primary;
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      onTap: onTap,
+      behavior: HitTestBehavior.opaque,
+      child: Padding(
+        padding: EdgeInsets.symmetric(horizontal: 8.w, vertical: 4.h),
+        child: Text(
+          label,
+          style: TextStyle(
+            fontSize: 15.sp,
+            color: primary ? const Color(0xFF2979FF) : Colors.white,
+            fontWeight: primary ? FontWeight.bold : FontWeight.normal,
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+/// 旋转 isolate 任务
+typedef _RotateTask = ({Uint8List bytes, int angle, bool isPng});
+
+/// 把旋转角度烘焙进 [processed] 的字节（失败时保留原图）
+Future<ProcessedImage> _bakeRotation(
+  ProcessedImage processed,
+  int angle,
+) async {
+  final isPng = processed.contentType == 'image/png';
+  final rotated = await compute<_RotateTask, Uint8List?>(
+    _rotateInIsolate,
+    (bytes: processed.bytes, angle: angle, isPng: isPng),
+  );
+  if (rotated == null || rotated.isEmpty) return processed;
+
+  return ProcessedImage(
+    bytes: rotated,
+    extension: isPng ? 'png' : 'jpg',
+    contentType: isPng ? 'image/png' : 'image/jpeg',
+    originalBytes: processed.originalBytes,
+    processedBytes: rotated.length,
+  );
+}
+
+/// isolate 内：解码 → 顺时针旋转 → 编码（JPEG 质量 90，对齐 Vue canvas 0.9）
+Uint8List? _rotateInIsolate(_RotateTask task) {
+  final src = img.decodeImage(task.bytes);
+  if (src == null) return null;
+  final dst = img.copyRotate(src, angle: task.angle);
+  final encoded =
+      task.isPng ? img.encodePng(dst) : img.encodeJpg(dst, quality: 90);
+  return Uint8List.fromList(encoded);
+}

lib/core/components/video_player_view.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:video_player/video_player.dart';
 import 'package:chewie/chewie.dart';
+import 'media_pause_scope.dart';
 
 /// ============================================================
 /// 【VideoPlayerView】通用视频播放器（内嵌版，无 Scaffold/AppBar）
@@ -107,11 +108,12 @@ class VideoPlayerView extends StatefulWidget {
   final ChewieProgressColors? materialProgressColors;
 
   @override
-  State<VideoPlayerView> createState() => _VideoPlayerViewState();
+  VideoPlayerViewState createState() => VideoPlayerViewState();
 }
 
-class _VideoPlayerViewState extends State<VideoPlayerView>
-    with WidgetsBindingObserver {
+class VideoPlayerViewState extends State<VideoPlayerView>
+    with WidgetsBindingObserver
+    implements MediaPausable {
   /// 官方底层控制器
   VideoPlayerController? _videoController;
 
@@ -127,6 +129,9 @@ class _VideoPlayerViewState extends State<VideoPlayerView>
   /// 初始化成功后视频的真实宽高比（未成功前 null → 兜底 16:9）
   double? _aspectRatio;
 
+  /// 所属媒体暂停作用域（随挂载位置自动注册/注销）
+  MediaPauseRegistry? _pauseScope;
+
   @override
   void initState() {
     super.initState();
@@ -135,8 +140,21 @@ class _VideoPlayerViewState extends State<VideoPlayerView>
     _initPlayer();
   }
 
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    // 自动挂到最近的 MediaPauseScope（含 fwfh 富文本内部的播放器）
+    final scope = MediaPauseScope.of(context);
+    if (scope != _pauseScope) {
+      _pauseScope?.unregister(this);
+      _pauseScope = scope;
+      _pauseScope?.register(this);
+    }
+  }
+
   @override
   void dispose() {
+    _pauseScope?.unregister(this);
     WidgetsBinding.instance.removeObserver(this);
     // 释放顺序不能反：先 chewie 再 video_player（反了会闪退）
     _chewieController?.dispose();
@@ -144,6 +162,12 @@ class _VideoPlayerViewState extends State<VideoPlayerView>
     super.dispose();
   }
 
+  /// 暂停播放（切页时由 MediaPauseRegistry 统一调用）
+  @override
+  void pause() {
+    _videoController?.pause();
+  }
+
   /// App 切后台 / 来电 → 自动暂停，防止声音继续播
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) {

lib/core/network/dio_client.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import 'package:dio/dio.dart';
 import 'package:flutter/foundation.dart';
 import 'package:new_learn/core/logger/app_talker.dart';
@@ -53,6 +55,10 @@ class DioClient {
         ),
       ) {
     if (enableNetworkLog) {
+      // 必须在 Talker 之前：把二进制 body 临时换成占位文本，
+      // 防止 Talker 把整张图（上百万字节）转成巨型日志字符串导致 OOM。
+      // 真实字节存在 extra 里，由 _buildInterceptors 的 onRequest 还原。
+      _dio.interceptors.add(_BinaryLogMaskInterceptor());
       _dio.interceptors.add(
         TalkerDioLogger(
           talker: talker,
@@ -88,6 +94,11 @@ class DioClient {
     return InterceptorsWrapper(
       // ① 请求发出前：加 Token + 打印日志
       onRequest: (options, handler) {
+        // 还原被 _BinaryLogMaskInterceptor 临时替换的二进制 body，保证实际上传内容不变
+        final realBody = options.extra.remove(_kRealBodyKey);
+        if (realBody != null) {
+          options.data = realBody;
+        }
         // OSS 直传会带自己的 authorization 头（OSS4-HMAC-SHA256 签名），
         // 任何形式存在 authorization 都不再加 Bearer，否则会覆盖 OSS 签名
         final hasAuth =
@@ -177,16 +188,20 @@ class DioClient {
     ProgressCallback? onReceiveProgress,
     int retries = 0,
     Map<String, dynamic>? headers,
+    Duration? receiveTimeout,
   }) async {
     var attempt = 0;
     while (true) {
       try {
+        final options = (headers != null || receiveTimeout != null)
+            ? Options(headers: headers, receiveTimeout: receiveTimeout)
+            : null;
         final resp = await _dio.get<dynamic>(
           path,
           queryParameters: query,
           cancelToken: cancelToken,
           onReceiveProgress: onReceiveProgress,
-          options: headers == null ? null : Options(headers: headers),
+          options: options,
         );
         return resp.data;
       } on DioException catch (e) {
@@ -337,3 +352,25 @@ class ApiException implements Exception {
   @override
   String toString() => message;
 }
+
+/// extra 中暂存真实二进制 body 的 key
+const String _kRealBodyKey = '_realBinaryBody@dio';
+
+/// 二进制日志屏蔽拦截器（必须在 TalkerDioLogger 之前执行）：
+/// 把二进制 body 暂存到 extra 并替换成简短占位文本，
+/// 避免 Talker 把整张图转成巨型日志字符串、堆积在日志历史里造成 OOM。
+/// 真实字节由 _buildInterceptors 的 onRequest 还原，不影响实际请求内容。
+class _BinaryLogMaskInterceptor extends Interceptor {
+  @override
+  void onRequest(RequestOptions options, RequestInterceptorHandler handler) {
+    final data = options.data;
+    if (data is TypedData) {
+      options.extra[_kRealBodyKey] = data;
+      options.data = '<binary ${data.lengthInBytes} bytes>';
+    } else if (data is Stream<List<int>>) {
+      options.extra[_kRealBodyKey] = data;
+      options.data = '<binary stream>';
+    }
+    handler.next(options);
+  }
+}

lib/core/router/app_router.dart

@@ -15,6 +15,10 @@ import 'package:new_learn/core/api/class/model.dart';
 import 'package:new_learn/features/my/my_page.dart';
 import 'package:new_learn/features/my/note/note_page.dart';
 import 'package:new_learn/features/conquerPackage/captureList/index.dart';
+import 'package:new_learn/features/conquerPackage/beforeDuringClass/index.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/class_exercises_page.dart';
+import 'package:new_learn/features/conquerPackage/report/report_page.dart';
+import 'package:new_learn/features/conquerPackage/transitionPage/transition_page.dart';
 import 'package:new_learn/features/my/my_point/my_point_page.dart';
 import 'package:new_learn/features/my/question_list/question_list_page.dart';
 import 'package:new_learn/features/my/my_report/my_report_page.dart';
@@ -209,6 +213,33 @@ final GoRouter appRouter = GoRouter(
       path: '/conquerPackage/captureList',
       builder: (_, state) => CaptureListPage(courseId: state.extra as String),
     ),
+    // ---------- 攻克包 - 课前课中 ----------
+    GoRoute(
+      path: '/conquerPackage/beforeDuringClass',
+      builder: (_, state) => BeforeDuringClassPage(
+        extra: state.extra as Map<String, dynamic>?,
+      ),
+    ),
+    GoRoute(
+      path: '/conquerPackage/transitionPage',
+      builder: (_, state) => TransitionPage(
+        extra: state.extra as Map<String, dynamic>?,
+      ),
+    ),
+    // ---------- 攻克包 - 课后习题 ----------
+    GoRoute(
+      path: '/conquerPackage/classExercises',
+      builder: (_, state) => ClassExercisesPage(
+        extra: state.extra as Map<String, dynamic>?,
+      ),
+    ),
+    // ---------- 攻克包 - 学习报告（占位） ----------
+    GoRoute(
+      path: '/conquerPackage/report',
+      builder: (_, state) => ReportPage(
+        extra: state.extra as Map<String, dynamic>?,
+      ),
+    ),
     GoRoute(path: '/register', builder: (_, _) => const RegisterPage()),
     // ---------- 背诵模块二级页（不在 ShellBranch 内，push 时不显示 tabbar） ----------
     // 教材列表

lib/core/services/image_file_header.dart

@@ -0,0 +1,10 @@
+// ============================================================
+// 图片文件头信息（条件导出）：
+//   native（dart.library.io 为真）→ image_file_header_io.dart
+//   web（dart.library.io 为假）  → image_file_header_web.dart
+//
+// 仅用 RandomAccessFile 读 JPEG/PNG 文件头获取尺寸/格式，
+// 不把整张图读进内存、不做像素解码。
+// ============================================================
+export 'image_file_header_web.dart'
+    if (dart.library.io) 'image_file_header_io.dart';

lib/core/services/image_file_header_io.dart

@@ -0,0 +1,118 @@
+// 仅当 dart.library.io 为真（native）时编译。
+import 'dart:io';
+import 'dart:typed_data';
+
+/// 图片文件头信息（仅读头部，不加载像素）
+class ImageFileHeader {
+  const ImageFileHeader({
+    required this.width,
+    required this.height,
+    required this.length,
+    required this.isPng,
+    required this.isJpeg,
+  });
+
+  final int width;
+  final int height;
+  final int length;
+  final bool isPng;
+  final bool isJpeg;
+}
+
+/// 读取本地图片文件头：尺寸 / 格式 / 文件大小。
+///
+/// 使用 RandomAccessFile 按 marker 顺序扫描，每次仅读几个字节：
+///   - PNG：IHDR 固定在偏移 16；
+///   - JPEG：从 SOI 后逐段扫描，SOF 段内即宽高（在 SOS 之前）。
+/// 不支持的格式 / 损坏文件返回 null。
+Future<ImageFileHeader?> readImageFileHeader(String path) async {
+  final file = File(path);
+  final raf = await file.open();
+  try {
+    final sig = await raf.read(4);
+    if (sig.length < 4) return null;
+
+    // -------- PNG：89 50 4E 47 0D 0A 1A 0A，IHDR 在偏移 16 --------
+    if (sig[0] == 0x89 &&
+        sig[1] == 0x50 &&
+        sig[2] == 0x4E &&
+        sig[3] == 0x47) {
+      await raf.setPosition(16);
+      final d = await raf.read(8);
+      if (d.length < 8) return null;
+      final width = (d[0] << 24) | (d[1] << 16) | (d[2] << 8) | d[3];
+      final height = (d[4] << 24) | (d[5] << 16) | (d[6] << 8) | d[7];
+      return ImageFileHeader(
+        width: width,
+        height: height,
+        length: await raf.length(),
+        isPng: true,
+        isJpeg: false,
+      );
+    }
+
+    // -------- JPEG：FF D8 FF --------
+    if (sig[0] == 0xFF && sig[1] == 0xD8 && sig[2] == 0xFF) {
+      await raf.setPosition(2);
+      while (true) {
+        // 定位段 marker（跳过填充字节）
+        final prefix = await raf.read(1);
+        if (prefix.isEmpty || prefix[0] != 0xFF) return null;
+        int marker;
+        do {
+          final m = await raf.read(1);
+          if (m.isEmpty) return null;
+          marker = m[0];
+        } while (marker == 0xFF);
+
+        // 无长度段：SOI / TEM / RSTn
+        if (marker == 0xD8 || marker == 0x01) continue;
+        if (marker >= 0xD0 && marker <= 0xD9) {
+          if (marker == 0xD9) return null; // EOI：未找到 SOF
+          continue;
+        }
+
+        final lenBytes = await raf.read(2);
+        if (lenBytes.length < 2) return null;
+        final segLen = (lenBytes[0] << 8) | lenBytes[1];
+        if (segLen < 2) return null;
+
+        // SOF 段（排除 C4=DHT、C8=JPG、CC=DAC）
+        if (marker >= 0xC0 &&
+            marker <= 0xCF &&
+            marker != 0xC4 &&
+            marker != 0xC8 &&
+            marker != 0xCC) {
+          // precision(1) + height(2) + width(2)
+          final sof = await raf.read(5);
+          if (sof.length < 5) return null;
+          final height = (sof[1] << 8) | sof[2];
+          final width = (sof[3] << 8) | sof[4];
+          return ImageFileHeader(
+            width: width,
+            height: height,
+            length: await raf.length(),
+            isPng: false,
+            isJpeg: true,
+          );
+        }
+
+        // 其它段：跳过段体（长度含自身 2 字节）
+        await raf.setPosition(await raf.position() + segLen - 2);
+      }
+    }
+
+    return null;
+  } finally {
+    await raf.close();
+  }
+}
+
+/// 读取文件全部字节（仅用于桌面等不支持原生压缩时的回退路径）
+Future<Uint8List?> readImageFileBytes(String path) async {
+  try {
+    return Uint8List.fromList(await File(path).readAsBytes());
+  } catch (_) {
+    return null;
+  }
+}

lib/core/services/image_file_header_web.dart

@@ -0,0 +1,25 @@
+// 仅当 dart.library.io 为假（Web）时编译。
+// Web 端选图直接拿到字节，不需要读文件头。
+import 'dart:typed_data';
+
+class ImageFileHeader {
+  const ImageFileHeader({
+    required this.width,
+    required this.height,
+    required this.length,
+    required this.isPng,
+    required this.isJpeg,
+  });
+
+  final int width;
+  final int height;
+  final int length;
+  final bool isPng;
+  final bool isJpeg;
+}
+
+/// Web 端无文件系统，返回 null
+Future<ImageFileHeader?> readImageFileHeader(String path) async => null;
+
+/// Web 端无文件系统，返回 null
+Future<Uint8List?> readImageFileBytes(String path) async => null;

lib/core/services/image_processor.dart

@@ -2,6 +2,8 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter_image_compress/flutter_image_compress.dart';
 import 'package:image/image.dart' as img;
 
+import 'image_file_header.dart';
+
 /// ============================================================
 /// 【ImageProcessor】图片压缩 + 方向修正 + 尺寸过滤
 ///
@@ -87,6 +89,68 @@ class ImageProcessor {
       processedBytes: result.processedBytes,
     );
   }
+
+  /// 处理本地图片【文件】（原生端推荐入口）：
+  ///   - 尺寸/格式只读文件头（RandomAccessFile 读几字节），
+  ///     UI 线程不做完整解码；
+  ///   - 压缩交给原生侧直接读文件，Dart 堆不持有原图；
+  ///   - 原生压缩不可用（如桌面平台）时回退纯 Dart isolate。
+  static Future<ProcessedImage?> processFile({
+    required String path,
+    int maxDimension = 1920,
+    int quality = 85,
+  }) async {
+    final header = await readImageFileHeader(path);
+    if (header == null) return null;
+    if (!_isInAllowedSize(header.width, header.height)) return null;
+
+    final target = _targetSize(
+      width: header.width,
+      height: header.height,
+      maxDimension: maxDimension,
+    );
+
+    final compressed = await FlutterImageCompress.compressWithFile(
+      path,
+      minWidth: target.width,
+      minHeight: target.height,
+      quality: quality,
+      format: header.isPng ? CompressFormat.png : CompressFormat.jpeg,
+      autoCorrectionAngle: true,
+    );
+
+    if (compressed != null && compressed.isNotEmpty) {
+      final bytes = Uint8List.fromList(compressed);
+      return ProcessedImage(
+        bytes: bytes,
+        extension: header.isPng ? 'png' : 'jpg',
+        contentType: header.isPng ? 'image/png' : 'image/jpeg',
+        originalBytes: header.length,
+        processedBytes: bytes.length,
+      );
+    }
+
+    // 回退：读文件字节 → 纯 Dart isolate（桌面等场景）
+    final fileBytes = await readImageFileBytes(path);
+    if (fileBytes == null || fileBytes.isEmpty) return null;
+    final result = await compute(
+      _processInIsolate,
+      (
+        bytes: fileBytes,
+        fileName: null,
+        maxDimension: maxDimension,
+        quality: quality,
+      ),
+    );
+    if (result == null) return null;
+    return ProcessedImage(
+      bytes: result.bytes,
+      extension: result.extension,
+      contentType: result.contentType,
+      originalBytes: result.originalBytes,
+      processedBytes: result.processedBytes,
+    );
+  }
 }
 
 typedef _ProcessTask = ({

lib/core/services/picker_service.dart

@@ -106,8 +106,10 @@ class PickerService {
       return image == null ? null : [image];
     }
     // 相册权限：Android 13+ 用 photos (READ_MEDIA_IMAGES)，旧版用 storage
+    final galleryPermission = await _resolveGalleryPermission();
+    if (!context.mounted) return null;
     final ok = await _ensurePermission(
-      permission: await _resolveGalleryPermission(),
+      permission: galleryPermission,
       title: '需要相册权限',
       purpose: '从相册选取图片用于上传错题、作业图片及更换头像',
       context: context,
@@ -190,10 +192,10 @@ class PickerService {
         // 不再强制锁拍照方向。题目/解答/讲义拍摄经常需要横拍，
         // 后续交给 ImageProcessor 的原生压缩链做 autoCorrectionAngle。
         onEntitySaving: (dialogContext, viewType, file) async {
-          final xFile = XFile(file.path);
+          // 只持有文件路径，不 readAsBytes：原图字节不进 Dart 堆，
+          // 后续压缩由原生侧直接读文件（避免大图 OOM）。
           picked = PickedImage(
             path: file.path,
-            bytes: await xFile.readAsBytes(),
             name: file.path.split('/').last,
           );
           if (dialogContext.mounted) {

lib/core/utils/question/exam_answer_card.dart

@@ -0,0 +1,303 @@
+/// ============================================================
+/// 答题卡构建（1:1 移植 Vue utils/examAnswerCard.js）
+/// ============================================================
+library;
+
+/// 子题带选项、需按“小题答题卡”处理的复合题型
+const Set<String> kQuestionTypesWithOptionChildren = {
+  'yuedulijie',
+  'yueduxuanzeti',
+  'qixuanwu',
+  'wanxingtiankongxuanzeti',
+  'tingli',
+};
+
+/// 仅这些学科按正常逻辑判断 hasOptionChildrenQuestion，其余学科直接 true
+const List<int> kSubjectIdsForNormalCheck = [2, 4, 5, 8, 9];
+
+bool _truthy(dynamic v) {
+  if (v == null) return false;
+  if (v is bool) return v;
+  if (v is num) return v != 0;
+  if (v is String) return v.isNotEmpty && v != '0';
+  return true;
+}
+
+dynamic _or(dynamic a, dynamic b) => _truthy(a) ? a : b;
+
+int _num(dynamic v, [int def = 0]) {
+  if (v is num) return v.toInt();
+  final n = int.tryParse('${v ?? ''}');
+  return n ?? def;
+}
+
+/// 答案是否有值（'' / null / '[]' 视为未答）
+bool hasValue(dynamic value) {
+  if (value == null) return false;
+  final str = '$value'.trim();
+  if (str.isEmpty || str == '[]') return false;
+  return true;
+}
+
+List<dynamic> _metaList(Map<String, dynamic>? question) {
+  if (question == null) return const [];
+  final v = question['bkTagMetaList'];
+  return v is List ? v : const [];
+}
+
+/// 填空题：每个空都作答才算已答；非填空题返回 null
+bool? isFillBlankFullyAnswered(Map<String, dynamic>? question) {
+  final metas = _metaList(question);
+  if (metas.isEmpty) return null;
+
+  bool metaHasAnswer(dynamic rawMeta) {
+    final meta = rawMeta is Map ? rawMeta : const {};
+    final answer = meta['myAnswer'] ?? meta['userAnswer'];
+    if (answer is List) return answer.isNotEmpty;
+    return hasValue(answer);
+  }
+
+  return metas.every(metaHasAnswer);
+}
+
+/// 题目是否已答
+bool isQuestionAnswered(Map<String, dynamic> question) {
+  final fillBlankAnswered = isFillBlankFullyAnswered(question);
+  final answered = (fillBlankAnswered == null || !fillBlankAnswered)
+      ? hasValue(question['userAnswer'])
+      : fillBlankAnswered;
+  return answered;
+}
+
+/// 读取题目子项（subQuestions 优先，其次 childs）
+List<dynamic> getQuestionChildren(Map<String, dynamic>? item) {
+  if (item == null) return const [];
+  if (item['subQuestions'] is List && (item['subQuestions'] as List).isNotEmpty) {
+    return item['subQuestions'] as List;
+  }
+  if (item['childs'] is List && (item['childs'] as List).isNotEmpty) {
+    return item['childs'] as List;
+  }
+  return const [];
+}
+
+/// 给题目列表补充 hasOptionChildrenQuestion（会就地改写 item 个别字段）
+List<Map<String, dynamic>> appendExamQuestionChildOptionStatus(
+  List<dynamic>? list,
+  dynamic subjectId,
+) {
+  return (list ?? const []).map((rawItem) {
+    final item = Map<String, dynamic>.from(rawItem as Map);
+    final childs = item['childs'] is List ? item['childs'] as List : const [];
+
+    // 学科不在白名单：默认按小题答题卡处理
+    if (!kSubjectIdsForNormalCheck.contains(_num(subjectId, -1))) {
+      var hasOptionFlag = childs.isNotEmpty;
+
+      // 输入型填空题（仅一空）合并到大题
+      if (item['questionTypes'] == 'tiankongti' && childs.length == 1) {
+        final firstChild = childs.first as Map;
+        item['answerStatus'] = _or(firstChild['answerStatus'], item['answerStatus']);
+        item['userAnswer'] = _or(firstChild['userAnswer'], item['userAnswer']);
+        hasOptionFlag = false;
+      }
+
+      // 解答题/问答题有子题：整题按一道题提交，图片作答
+      if ((item['questionTypes'] == 'jiedati' || item['questionTypes'] == 'wendati') &&
+          childs.isNotEmpty) {
+        hasOptionFlag = false;
+        item['iSFilllankItemUpload'] = 1;
+      }
+
+      return {
+        ...item,
+        'hasOptionChildrenQuestion': hasOptionFlag,
+      };
+    }
+
+    final childList = getQuestionChildren(item);
+    final hasOptionChildren =
+        kQuestionTypesWithOptionChildren.contains(item['questionTypes']) &&
+            childList.isNotEmpty &&
+            childList.any((c) =>
+                c is Map && c['options'] is List && (c['options'] as List).isNotEmpty);
+    final isInputFillBlankQuestion = item['questionTypes'] == 'tiankongti' &&
+        _num(item['iSFilllankItemUpload']) == 0 &&
+        (item['childs'] is List && (item['childs'] as List).length > 1);
+
+    return {
+      ...item,
+      'hasOptionChildrenQuestion': hasOptionChildren || isInputFillBlankQuestion,
+    };
+  }).toList();
+}
+
+Map<String, dynamic> _rawId(dynamic sub) => sub is Map && sub['raw'] is Map
+    ? Map<String, dynamic>.from(sub['raw'] as Map)
+    : const {};
+
+/// 将题目拍平成答题卡题号列表
+List<Map<String, dynamic>> buildExamAnswerCardQuestions(
+  List<dynamic>? questionsList, {
+  bool isExamAnswerCard = true,
+}) {
+  final list = <Map<String, dynamic>>[];
+  var displaySort = 1;
+
+  (questionsList ?? const []).asMap().forEach((index, rawItem) {
+    final item = Map<String, dynamic>.from(rawItem as Map);
+    final subQuestions =
+        item['subQuestions'] is List ? item['subQuestions'] as List : const [];
+
+    if (isExamAnswerCard != true) {
+      if (item['hasChild'] == true && subQuestions.isNotEmpty) {
+        subQuestions.asMap().forEach((subIndex, rawSub) {
+          final sub = Map<String, dynamic>.from(rawSub as Map);
+          final subRaw = _rawId(sub);
+          final question = {
+            ...sub,
+            'questionId': subRaw['id'] ?? '${item['id'] ?? index}-$subIndex',
+            'parentIndex': index,
+            'subIndex': subIndex,
+            'sort': _num(sub['sort']),
+            'targetSort': _num(sub['sort']),
+            'questionTypeName': item['questionTypeName'] ?? '题目',
+            'userAnswer': _or(sub['userAnswer'], item['userAnswer']),
+            'correctAnswer': _or(sub['answer'], subRaw['answer']) ?? '',
+            'answerStatus': _or(sub['answerStatus'], 0),
+            'bkTagMetaList': sub['bkTagMetaList'] ?? const [],
+          };
+          list.add({...question, 'answered': isQuestionAnswered(question)});
+        });
+        return;
+      }
+
+      final question = {
+        ...item,
+        'questionId': item['id'] ?? index,
+        'parentIndex': index,
+        'subIndex': -1,
+        'sort': _num(item['sort']),
+        'targetSort': _num(item['sort']),
+        'questionTypeName': item['questionTypeName'] ?? '题目',
+        'userAnswer': item['userAnswer'] ?? '',
+        'correctAnswer': item['correctAnswer'] ?? item['answer'] ?? '',
+        'answerStatus': item['answerStatus'] ?? 0,
+        'bkTagMetaList': item['bkTagMetaList'] ?? const [],
+      };
+      list.add({...question, 'answered': isQuestionAnswered(question)});
+      return;
+    }
+
+    final children = getQuestionChildren(item);
+    final collapseAsSingleQuestion = item['hasOptionChildrenQuestion'] == false;
+
+    if (collapseAsSingleQuestion) {
+      final childs = item['childs'] is List ? item['childs'] as List : const [];
+      final firstChildSort = children.isNotEmpty
+          ? _num((children.first as Map)['sort'])
+          : 0;
+      var targetSort = _num(item['sort']);
+      if (targetSort == 0) targetSort = firstChildSort;
+
+      if (item['questionTypes'] == 'tiankongti' && childs.length == 1) {
+        final firstChild = childs.first as Map;
+        firstChild['questionTypeName'] = item['questionTypeName'] ?? '题目';
+        item['userAnswer'] = _or(firstChild['userAnswer'], item['userAnswer']);
+        item['answerStatus'] = _or(firstChild['answerStatus'], item['answerStatus']);
+      }
+
+      final question = {
+        ...item,
+        'questionId': item['id'] ?? index,
+        'parentIndex': index,
+        'subIndex': -1,
+        'sort': displaySort++,
+        'targetSort': targetSort,
+        'questionTypeName': item['questionTypeName'] ?? '题目',
+        'userAnswer': item['userAnswer'] ?? '',
+        'correctAnswer': item['correctAnswer'] ?? item['answer'] ?? '',
+        'answerStatus': item['answerStatus'] ?? 0,
+        'bkTagMetaList': item['bkTagMetaList'] ?? const [],
+      };
+      list.add({...question, 'answered': isQuestionAnswered(question)});
+      return;
+    }
+
+    if (children.isNotEmpty) {
+      children.asMap().forEach((subIndex, rawSub) {
+        final sub = Map<String, dynamic>.from(rawSub as Map);
+        final subRaw = _rawId(sub);
+        final question = {
+          ...sub,
+          'questionId': subRaw['id'] ?? sub['id'] ?? '${item['id'] ?? index}-$subIndex',
+          'parentIndex': index,
+          'subIndex': subIndex,
+          'sort': displaySort++,
+          'targetSort': _num(sub['sort']),
+          'questionTypeName': item['questionTypeName'] ?? '题目',
+          'userAnswer': _or(sub['userAnswer'], item['userAnswer']),
+          'correctAnswer':
+              sub['correctAnswer'] ?? sub['answer'] ?? subRaw['answer'] ?? '',
+          'answerStatus': sub['answerStatus'] ?? 0,
+          'bkTagMetaList': sub['bkTagMetaList'] ?? const [],
+        };
+        list.add({...question, 'answered': isQuestionAnswered(question)});
+      });
+      return;
+    }
+
+    final question = {
+      ...item,
+      'questionId': item['id'] ?? index,
+      'parentIndex': index,
+      'subIndex': -1,
+      'sort': displaySort++,
+      'targetSort': _num(item['sort']),
+      'questionTypeName': item['questionTypeName'] ?? '题目',
+      'userAnswer': item['userAnswer'] ?? '',
+      'correctAnswer': item['correctAnswer'] ?? item['answer'] ?? '',
+      'answerStatus': item['answerStatus'] ?? 0,
+      'bkTagMetaList': item['bkTagMetaList'] ?? const [],
+    };
+    list.add({...question, 'answered': isQuestionAnswered(question)});
+  });
+
+  final filtered = list.where((item) {
+    final sort = _num(item['sort']);
+    if (sort <= 0) return false;
+    if (isExamAnswerCard == true) return true;
+    return _num(item['targetSort']) > 0 || sort > 0;
+  }).toList();
+  filtered.sort((a, b) => _num(a['sort']).compareTo(_num(b['sort'])));
+  return filtered;
+}
+
+/// 按相邻 questionTypeName 分组，供答题卡渲染
+List<Map<String, dynamic>> buildExamAnswerCard(
+  List<dynamic>? questionsList, {
+  bool isExamAnswerCard = true,
+}) {
+  final sortedQuestions = buildExamAnswerCardQuestions(
+    questionsList,
+    isExamAnswerCard: isExamAnswerCard,
+  );
+  final result = <Map<String, dynamic>>[];
+  Map<String, dynamic>? currentGroup;
+
+  for (final question in sortedQuestions) {
+    final typeName = '${question['questionTypeName'] ?? '题目'}';
+    if (currentGroup == null || currentGroup['name'] != typeName) {
+      currentGroup = {
+        'name': typeName,
+        'questions': <Map<String, dynamic>>[],
+      };
+      result.add(currentGroup);
+    }
+    (currentGroup['questions'] as List).add({
+      ...question,
+      'status': question['answerStatus'],
+    });
+  }
+  return result;
+}

lib/core/utils/question/extract_media_from_stem.dart

@@ -0,0 +1,150 @@
+/// ============================================================
+/// 题干媒体拆分（1:1 移植 Vue utils/extractMediaFromStem.js）
+///
+/// 从题干 HTML 中拆出内嵌 audio/video，避免富文本直接渲染媒体异常。
+/// ============================================================
+library;
+
+class StemMediaBlock {
+  const StemMediaBlock({required this.type, this.content, this.audioUrl, this.videoUrl, this.videoCoverUrl});
+
+  /// html / audio / video
+  final String type;
+  final String? content;
+  final String? audioUrl;
+  final String? videoUrl;
+  final String? videoCoverUrl;
+
+  Map<String, dynamic> toJson() => {
+        'type': type,
+        if (content != null) 'content': content,
+        if (audioUrl != null) 'audioUrl': audioUrl,
+        if (videoUrl != null) 'videoUrl': videoUrl,
+        if (videoCoverUrl != null) 'videoCoverUrl': videoCoverUrl,
+      };
+}
+
+class StemMedia {
+  const StemMedia({
+    this.content = '',
+    this.audios = const [],
+    this.videos = const [],
+    this.blocks = const [],
+  });
+
+  final String content;
+  final List<Map<String, dynamic>> audios;
+  final List<Map<String, dynamic>> videos;
+  final List<StemMediaBlock> blocks;
+}
+
+String _normalizeMediaAttr(String? value) =>
+    (value ?? '').replaceAll(RegExp(r'''[`'"\s]'''), '').trim();
+
+String? _firstNonEmpty(List<String?> groups) {
+  for (final g in groups) {
+    if (g != null && g.isNotEmpty) return g;
+  }
+  return null;
+}
+
+({String src, String poster}) _extractMediaAttrs(String tagHtml) {
+
+  final srcMatch = RegExp(
+    r'''\bsrc\s*=\s*(?:"([^"]*)"|'([^']*)'|([^\s"'=<>`]+))''',
+    caseSensitive: false,
+  ).firstMatch(tagHtml);
+  final posterMatch = RegExp(
+    r'''\bposter\s*=\s*(?:"([^"]*)"|'([^']*)'|([^\s"'=<>`]+))''',
+    caseSensitive: false,
+  ).firstMatch(tagHtml);
+  final sourceMatch = RegExp(
+    r'''<source[^>]*\bsrc\s*=\s*(?:"([^"]*)"|'([^']*)'|([^\s"'=<>`]+))''',
+    caseSensitive: false,
+  ).firstMatch(tagHtml);
+
+  final src = _normalizeMediaAttr(_firstNonEmpty([
+    sourceMatch?.group(1),
+    sourceMatch?.group(2),
+    sourceMatch?.group(3),
+    srcMatch?.group(1),
+    srcMatch?.group(2),
+    srcMatch?.group(3),
+  ]));
+  final poster = _normalizeMediaAttr(_firstNonEmpty([
+    posterMatch?.group(1),
+    posterMatch?.group(2),
+    posterMatch?.group(3),
+  ]));
+  return (src: src, poster: poster);
+}
+
+StemMedia extractMediaFromStem(String? html) {
+  if (html == null || html.isEmpty) {
+    return const StemMedia();
+  }
+
+  final rawHtml = html;
+  final mediaTagReg = RegExp(
+    r'<audio\b[\s\S]*?</audio>|<video\b[\s\S]*?</video>',
+    caseSensitive: false,
+  );
+
+  final audios = <Map<String, dynamic>>[];
+  final videos = <Map<String, dynamic>>[];
+  final blocks = <StemMediaBlock>[];
+  var lastIndex = 0;
+
+  void pushHtmlBlock(String content) {
+    if (content.trim().isEmpty) return;
+    blocks.add(StemMediaBlock(type: 'html', content: content));
+  }
+
+  for (final m in mediaTagReg.allMatches(rawHtml)) {
+    final tagHtml = m.group(0)!;
+    final offset = m.start;
+    pushHtmlBlock(rawHtml.substring(lastIndex, offset));
+
+    if (RegExp(r'^<audio\b', caseSensitive: false).hasMatch(tagHtml)) {
+      final attrs = _extractMediaAttrs(tagHtml);
+      if (attrs.src.isNotEmpty) {
+        final audioItem = {'audioUrl': attrs.src};
+        audios.add(audioItem);
+        blocks.add(StemMediaBlock(type: 'audio', audioUrl: attrs.src));
+      }
+    } else {
+      final attrs = _extractMediaAttrs(tagHtml);
+      if (attrs.src.isNotEmpty) {
+        final videoItem = {
+          'videoUrl': attrs.src,
+          'videoCoverUrl': attrs.poster,
+        };
+        videos.add(videoItem);
+        blocks.add(StemMediaBlock(
+          type: 'video',
+          videoUrl: attrs.src,
+          videoCoverUrl: attrs.poster,
+        ));
+      }
+    }
+    lastIndex = offset + tagHtml.length;
+  }
+
+  pushHtmlBlock(rawHtml.substring(lastIndex));
+
+  var content = rawHtml
+      .replaceAll(RegExp(r'<audio\b[\s\S]*?</audio>', caseSensitive: false), '')
+      .replaceAll(RegExp(r'<video\b[\s\S]*?</video>', caseSensitive: false), '');
+
+  content = content
+      .replaceAll(
+        RegExp(
+          r'<(div|p)([^>]*)>\s*(?:<br\s*/?>|&nbsp;|\s)*</\1>',
+          caseSensitive: false,
+        ),
+        '',
+      )
+      .trim();
+
+  return StemMedia(content: content, audios: audios, videos: videos, blocks: blocks);
+}

lib/core/utils/question/formula.dart

@@ -0,0 +1,10 @@
+/// ============================================================
+/// 公式渲染（对标 Vue utils/formula.js 的 renderLatexInHtml）
+///
+/// 注意：Vue 端该函数第 960 行 `return content` 是空操作（公式已由
+/// 后端转成 SVG，见 RichTextContent 内置 flutter_svg 渲染）。
+/// Flutter 侧保持 identity，不引入任何 LaTeX 依赖。
+/// ============================================================
+library;
+
+String renderLatexInHtml(String? content) => content ?? '';

lib/core/utils/question/js_regex.dart

@@ -0,0 +1,139 @@
+/// ============================================================
+/// JS 正则兼容层（JRegExp / JMatch）
+///
+/// Vue 端大量解析脚本依赖 JavaScript 正则语义：
+///   - 带 g 标志时 exec() 从 lastIndex 开始，命中后把 lastIndex
+///     推进到本次匹配末尾；失配后 lastIndex 归 0；
+///   - replace(regex, fn) 回调参数为 (match, p1..pn, offset, src)；
+///   - 默认 i（忽略大小写）+ s（dotAll，. 匹配换行）。
+///
+/// Dart 的 RegExp 语法/语义与 JS 基本一致（支持反向引用 \1、
+/// 先行断言 (?=...)，不支持后行断言），但没有 lastIndex 游标，
+/// 这里做一层薄封装，供移植代码保持原有 while(exec) 写法。
+/// ============================================================
+library;
+
+/// JS 风格单次匹配结果
+class JMatch {
+  JMatch(this._m, this.source);
+
+  final RegExpMatch _m;
+
+  /// 原始字符串
+  final String source;
+
+  /// 匹配起始下标（JS match.index）
+  int get index => _m.start;
+
+  /// 匹配结束下标
+  int get end => _m.end;
+
+  /// 整个匹配文本（JS match[0]）
+  String get group0 => _m.group(0)!;
+
+  /// 捕获组总数
+  int get groupCount => _m.groupCount;
+
+  /// 取捕获组（JS match[n]），无匹配返回 null
+  String? call(int n) => _m.group(n);
+
+  /// 取捕获组，空串也按空串返回；不存在才返回 null
+  String? groupOrNull(int n) =>
+      n <= _m.groupCount ? _m.group(n) : null;
+
+  RegExpMatch get raw => _m;
+}
+
+/// JS 风格正则（默认 global + ignoreCase + dotAll）
+class JRegExp {
+  JRegExp(
+    String pattern, {
+    this.global = true,
+    bool caseInsensitive = true,
+    bool dotAll = true,
+    bool multiLine = false,
+  }) : _re = RegExp(
+          pattern,
+          caseSensitive: !caseInsensitive,
+          dotAll: dotAll,
+          multiLine: multiLine,
+        );
+
+  final RegExp _re;
+  final bool global;
+
+  /// JS regex.lastIndex
+  int lastIndex = 0;
+
+  /// JS regex.exec(string)
+  JMatch? exec(String input) {
+    if (lastIndex < 0) lastIndex = 0;
+    if (lastIndex > input.length) {
+      lastIndex = 0;
+      return null;
+    }
+    RegExpMatch? found;
+    for (final m in _re.allMatches(input, lastIndex)) {
+      found = m;
+      break;
+    }
+    if (found == null) {
+      lastIndex = 0;
+      return null;
+    }
+    final match = JMatch(found, input);
+    if (global) {
+      // 零宽匹配时 JS 会让 lastIndex 前进 1 位，避免死循环
+      lastIndex = found.end == found.start ? found.end + 1 : found.end;
+    }
+    return match;
+  }
+
+  /// 重置游标
+  void reset() => lastIndex = 0;
+
+  /// JS String.match(regex)：非 global 返回首个匹配，global 返回全量
+  List<JMatch>? all(String input) {
+    if (!global) {
+      final m = _re.firstMatch(input);
+      return m == null ? null : [JMatch(m, input)];
+    }
+    return _re.allMatches(input).map((m) => JMatch(m, input)).toList();
+  }
+}
+
+/// 非全局取首个匹配（对标 string.match(/.../i)）
+JMatch? jsFirstMatch(String input, String pattern, {bool dotAll = true}) {
+  final m = RegExp(pattern, dotAll: dotAll).firstMatch(input);
+  return m == null ? null : JMatch(m, input);
+}
+
+/// 对标 JS parseInt(value, radix)：允许前导空白、前缀数字，尾部垃圾忽略
+int? jsParseInt(dynamic value, [int radix = 10]) {
+  if (value == null) return null;
+  var s = '$value'.trim();
+  if (s.isEmpty) return null;
+  if (radix == 10) {
+    final m = RegExp(r'^[+-]?\d+').firstMatch(s);
+    if (m == null) return null;
+    return int.tryParse(m.group(0)!);
+  }
+  return int.tryParse(s, radix: radix);
+}
+
+/// 对标 JS Number(value)（仅在需要时使用）
+num? jsNumber(dynamic value) {
+  if (value == null) return 0;
+  if (value is num) return value;
+  final s = '$value'.trim();
+  if (s.isEmpty) return 0;
+  return num.tryParse(s);
+}
+
+/// 对标 JS String.prototype.replace(regex, '$1') 中最常用的形态：
+/// 用捕获组 1 替换每处匹配
+String replaceWithGroup1(String input, String pattern) {
+  return input.replaceAllMapped(RegExp(pattern, dotAll: true), (m) {
+    return m.group(1) ?? '';
+  });
+}

lib/core/utils/question/question_constant.dart

@@ -0,0 +1,99 @@
+/// ============================================================
+/// 题型 / 学科常量（对标 Vue utils/constant.js）
+/// ============================================================
+library;
+
+/// 根据 questionTypeId 和 isObjective 获取对应的题型代码
+class QuestionTypeCodeMap {
+  QuestionTypeCodeMap._();
+
+  /// 客观题（isObjective=true 时查这张表）
+  static const Map<String, String> objective = {
+    '12352055339057157': 'danxuanti', // 单选题
+    '12352065806598149': 'duoxuanti', // 多选题
+    '12352066848751621': 'panduanti', // 判断题
+    '792156155195462': 'panduanti', // 判断题(临时匹配数据,待定)
+    '805449231827078': 'qixuanwu', // 七选五
+    '807952051372102': 'qixuanwu', // 七选五
+    '12357397088370693': 'wanxingtiankongxuanzeti', // 完形填空选择题
+    '12357391078981637': 'yueduxuanzeti', // 阅读选择题
+    '806897094647878': 'wendati', // 问答题
+    '12357387196366853': 'tingli', // 听力
+    '792171174588486': 'yuedulijie', // 阅读理解
+    '12352067804725253': 'tiankongti', // 填空题
+    '12352069399805957': 'jiedati', // 解答题
+    '12352070327861253': 'jisuanti', // 计算题
+    '12352071266336773': 'yingyongti', // 应用题
+    '12352072842215429': 'shiyanti', // 实验题
+    '12357399440457733': 'xiezuo', // 写作
+    '12361758319509574': 'zhengmingti', // 证明题
+  };
+
+  /// 主观题（isObjective=false 时查这张表）
+  static const Map<String, String> subjective = {
+    '12352055339057157': 'danxuanti', // 单选题
+    '12352065806598149': 'duoxuanti', // 多选题
+    '12352066848751621': 'panduanti', // 判断题
+    '792156155195462': 'panduanti', // 判断题(临时匹配数据,待定)
+    '792171174588486': 'yuedulijie', // 阅读理解
+    '12352067804725253': 'tiankongti', // 填空题
+    '12352069399805957': 'jiedati', // 解答题
+    '12352070327861253': 'jisuanti', // 计算题
+    '12352071266336773': 'yingyongti', // 应用题
+    '12352072842215429': 'shiyanti', // 实验题
+    '12357387196366853': 'tingli', // 听力
+    '12357391078981637': 'yueduxuanzeti', // 阅读选择题
+    '12357397088370693': 'wanxingtiankongxuanzeti', // 完形填空选择题
+    '12357399440457733': 'xiezuo', // 写作
+    '12361758319509574': 'zhengmingti', // 证明题
+    '805449231827078': 'qixuanwu', // 七选五
+    '807952051372102': 'qixuanwu', // 七选五
+    '806897094647878': 'wendati', // 问答题
+  };
+
+  /// 通过 Code 获取题型
+  static const Map<String, String> typeCode = {
+    '1': 'danxuanti', // 单选题
+    '2': 'duoxuanti', // 多选题
+    '3': 'panduanti', // 判断题
+    '4': 'tiankongti', // 填空题
+    '5': 'jiedati', // 解答题
+    '9': 'tingli', // 听力
+    'qixuanwu': 'qixuanwu', // 七选五
+    'wangxingtiankong': 'wanxingtiankongxuanzeti', // 完形填空选择题
+    'wendati': 'wendati', // 问答题
+    'yueduljie': 'yuedulijie', // 阅读理解
+  };
+}
+
+/// 学科作答方式（type：0=输入框，1=图片作答/手写作答）
+class SubjectInfo {
+  const SubjectInfo(this.id, this.name, this.type);
+
+  final int id;
+  final String name;
+  final int type;
+}
+
+const List<SubjectInfo> kSubjectList = [
+  SubjectInfo(1, '语文', 0),
+  SubjectInfo(2, '数学', 1),
+  SubjectInfo(3, '英语', 0),
+  SubjectInfo(4, '物理', 1),
+  SubjectInfo(5, '化学', 1),
+  SubjectInfo(6, '生物学', 0),
+  SubjectInfo(7, '政治（道法）', 0),
+  SubjectInfo(8, '历史', 1),
+  SubjectInfo(9, '地理', 1),
+  SubjectInfo(100013, '艺起看世界 ', 0), // 只有客观题，没有主观题
+];
+
+/// Vue: getSubjectTypeById —— 找不到返回 ''（load 处 `|| 0` 兜底）
+int? getSubjectTypeById(dynamic subjectId) {
+  final id = int.tryParse('$subjectId');
+  if (id == null || id == 0) return null;
+  for (final item in kSubjectList) {
+    if (item.id == id) return item.type;
+  }
+  return null;
+}

lib/core/utils/question/question_parser.dart

@@ -0,0 +1,150 @@
+/// ============================================================
+/// 题目解析总入口（1:1 移植 Vue utils/questionParser.ts）
+///
+/// parseQuestionData：根据 hasChild/childs 分发给 Standard /
+/// NonStandard 解析器，并支持把后端原始 childs 按索引合并回来。
+/// ============================================================
+library;
+
+import 'js_regex.dart';
+import 'question_parser_base.dart';
+import 'question_parser_standard.dart';
+import 'question_parser_non_standard.dart';
+
+export 'question_parser_base.dart';
+export 'question_parser_standard.dart' show parseStandardQuestion, analysisTextOf;
+export 'question_parser_non_standard.dart';
+
+/// 对标 Vue formatQuestionText：去掉空格与换行
+String formatQuestionText(String? s) {
+  if (s == null) return '';
+  return s.replaceAll(RegExp(r'[ \r\n]'), '');
+}
+
+/// 去掉 <strong class="hxdb-placeholder">...</strong> 占位盒
+String _stripHxdbPlaceholder(String? html) {
+  if (html == null || html.isEmpty) return '';
+  var result = html;
+
+  result = result.replaceAll(
+    RegExp(
+      r"""<([a-z0-9]+)\b[^>]*\bclass\s*=\s*(["'])[^"']*\bhxdb-placeholder\b[^"']*\2[^>]*/>""",
+      caseSensitive: false,
+    ),
+    '',
+  );
+
+  final startTagRegex = JRegExp(
+    r"""<([a-z0-9]+)\b([^>]*)\bclass\s*=\s*(["'])([^"']*\bhxdb-placeholder\b[^"']*)\3([^>]*)>""",
+  );
+  while (true) {
+    final match = startTagRegex.exec(result);
+    if (match == null) break;
+    final fullBlock = findFullElement(result, match);
+    result = result.replaceFirst(fullBlock, '');
+    startTagRegex.reset();
+  }
+  return result;
+}
+
+/// 按索引把原始 childs 合并回解析后的列表（{...parsed, ...original}）
+List<Map<String, dynamic>> _mergeItemListWithOriginalChilds(
+  List<dynamic>? parsedList,
+  List<dynamic> originalChilds,
+) {
+  final list = parsedList ?? const [];
+  final maxLen = list.length > originalChilds.length
+      ? list.length
+      : originalChilds.length;
+  if (maxLen == 0) return const [];
+
+  return List.generate(maxLen, (index) {
+    final parsedItem = index < list.length && list[index] is Map
+        ? Map<String, dynamic>.from(list[index] as Map)
+        : null;
+    final original = index < originalChilds.length && originalChilds[index] is Map
+        ? Map<String, dynamic>.from(originalChilds[index] as Map)
+        : null;
+    if (parsedItem != null && original != null) {
+      return {...parsedItem, ...original};
+    }
+    if (parsedItem != null) return parsedItem;
+    return {...?original};
+  });
+}
+
+Map<String, dynamic> _mergeParsedWithOriginalChilds(
+  Map<String, dynamic> parsed,
+  List<dynamic> originalChilds,
+) {
+  final mergedSubQuestions =
+      _mergeItemListWithOriginalChilds(parsed['subQuestions'] as List?, originalChilds);
+  // JS: parsed.childs 非空时用 childs，否则回退 subQuestions
+  final parsedChildsSource = (parsed['childs'] is List &&
+          (parsed['childs'] as List).isNotEmpty)
+      ? parsed['childs'] as List
+      : (parsed['subQuestions'] as List? ?? const []);
+  final mergedChilds =
+      _mergeItemListWithOriginalChilds(parsedChildsSource, originalChilds);
+  final mergedBkTagMetaList =
+      _mergeItemListWithOriginalChilds(parsed['bkTagMetaList'] as List?, originalChilds);
+
+  return {
+    ...parsed,
+    'subQuestions': mergedSubQuestions,
+    'childs': mergedChilds,
+    'bkTagMetaList':
+        mergedBkTagMetaList.isNotEmpty ? mergedBkTagMetaList : parsed['bkTagMetaList'],
+  };
+}
+
+Map<String, dynamic> _emptyParsed() => {
+      'stem': '',
+      'options': const <Map<String, String>>[],
+      'isSelect': false,
+      'answer': '',
+      'analysis': '',
+      'questionTypes': '',
+    };
+
+/// 解析单道后端题目
+Map<String, dynamic> parseQuestionData(
+  Map<String, dynamic>? detail, {
+  bool mergeOriginalChilds = false,
+}) {
+  // 兼容外层包了一层 questions
+  final questionData = (detail?['questions'] is Map
+          ? detail!['questions'] as Map
+          : detail)
+      as Map<String, dynamic>?;
+
+  if (questionData == null) return _emptyParsed();
+
+  final rawStem = _stripHxdbPlaceholder('${questionData['stem'] ?? ''}');
+  final rawAnswer = '${questionData['answer'] ?? ''}';
+  final rawCorrectAnswer = '${questionData['correctAnswer'] ?? ''}';
+  final rawAnalysisValue = questionData['answerAnalysis'];
+  final rawAnalysis = rawAnalysisValue is Map
+      ? '${rawAnalysisValue['analysis'] ?? ''}'
+      : '${rawAnalysisValue ?? ''}';
+  // 只有空标签的解析置空
+  final analysis = cleanRichText(rawAnalysis, '').isNotEmpty ? rawAnalysis : '';
+
+  final hasChildsArray =
+      questionData['childs'] is List && (questionData['childs'] as List).isNotEmpty;
+  final originalChilds =
+      hasChildsArray ? (questionData['childs'] as List) : const [];
+
+  final hasChilds = questionData['hasChild'] == true && hasChildsArray;
+
+  final parsed = hasChilds
+      ? parseStandardQuestion(
+          questionData, rawStem, rawAnswer, rawCorrectAnswer, analysis)
+      : parseNonStandardQuestion(
+          questionData, rawStem, rawAnswer, rawCorrectAnswer, analysis);
+
+  if (mergeOriginalChilds && originalChilds.isNotEmpty) {
+    return _mergeParsedWithOriginalChilds(parsed, originalChilds);
+  }
+  return parsed;
+}

lib/core/utils/question/question_parser_base.dart

@@ -0,0 +1,913 @@
+/// ============================================================
+/// 题目解析基础工具（1:1 移植 Vue utils/questionParserBase.ts）
+///
+/// 包含：选项提取、平衡闭合标签查找、`<bk>` 标签解析、判断题处理、
+/// 题型代码、排序、富文本清洗、数学填空圈号、复合题题干格式化等。
+/// ============================================================
+library;
+
+import 'dart:convert';
+
+import 'question_constant.dart';
+import 'js_regex.dart';
+
+/// 填空占位元数据（对标 Vue BkTagMeta）
+typedef BkTagMeta = Map<String, dynamic>;
+
+/// 统一的选项结构
+Map<String, String> makeOption(String label, String content) =>
+    {'optionLabel': label, 'options': content};
+
+// ------------------------------------------------------------
+// 选项提取
+// ------------------------------------------------------------
+
+/// 从 HTML 字符串中提取选项（hxdb-option-table-td / hxdb-sub-option-table-td）
+List<Map<String, String>> extractOptionsFromHtml(String html) {
+  final options = <Map<String, String>>[];
+  final tdRegex = JRegExp(
+    r'<([a-zA-Z][a-zA-Z0-9]*)[^>]*class="[^"]*hxdb-(?:sub-)?option-table-td[^"]*"[^>]*>([\s\S]*?)</\1>',
+  );
+  const labelSrc = r'^(\s|<[^>]+>)*([A-Z])[\.\、\:\s]\s*(&nbsp;)?';
+  var index = 0;
+  JMatch? tdMatch;
+  while ((tdMatch = tdRegex.exec(html)) != null) {
+    final tdContent = tdMatch!(2) ?? '';
+    final labelMatch = RegExp(labelSrc, caseSensitive: false).firstMatch(tdContent);
+    var optionLabel = labelMatch != null ? labelMatch.group(2)! : '';
+    if (optionLabel.isEmpty) {
+      optionLabel = String.fromCharCode(65 + index);
+    }
+    // 去掉选项字母与分隔符，保留前面的空白/标签结构
+    final cleanedContent = tdContent.replaceFirstMapped(
+      RegExp(labelSrc, caseSensitive: false),
+      (m) => m.group(1) ?? '',
+    );
+    options.add(makeOption(optionLabel, cleanedContent));
+    index++;
+  }
+  return options;
+}
+
+/// 寻找平衡的闭合标签（解决嵌套 div/table 匹配问题）
+String findFullElement(String html, JMatch startTagMatch) {
+  final startIdx = startTagMatch.index;
+  final startTagFull = startTagMatch.group0;
+
+  final tagNameMatch = RegExp(r'^<([a-z0-9]+)', caseSensitive: false)
+      .firstMatch(startTagFull);
+  if (tagNameMatch == null) return startTagFull;
+
+  final tagName = tagNameMatch.group(1)!;
+  var depth = 1;
+  var currentPos = startIdx + startTagFull.length;
+
+  final tagRegex = JRegExp('<(\\/)?$tagName[^>]*>');
+  tagRegex.lastIndex = currentPos;
+
+  JMatch? tagMatch;
+  while ((tagMatch = tagRegex.exec(html)) != null) {
+    if (tagMatch!(1) == '/') {
+      depth--;
+    } else {
+      if (!tagMatch.group0.endsWith('/>')) {
+        depth++;
+      }
+    }
+    if (depth == 0) {
+      return html.substring(startIdx, tagMatch.end);
+    }
+  }
+  return startTagFull;
+}
+
+/// 剔除 stem 中的 hxdb-sub-option-table 选项表格
+String stripOptionTable(String html) {
+  if (html.isEmpty) return '';
+  var result = html;
+  final tableRegex = JRegExp(
+    r'<table[^>]*class="[^"]*hxdb-sub-option-table[^"]*"[^>]*>',
+  );
+  while (true) {
+    final match = tableRegex.exec(result);
+    if (match == null) break;
+    final fullBlock = findFullElement(result, match);
+    result = result.replaceFirst(fullBlock, '');
+    tableRegex.reset();
+  }
+  return result;
+}
+
+/// 纯文本 A. xxx 选项兜底提取
+List<Map<String, String>> extractPlainTextOptions(String html) {
+  final result = <Map<String, String>>[];
+  final plain = html
+      .replaceAll(RegExp(r'<[^>]+>'), '\n')
+      .replaceAll('&nbsp;', ' ')
+      .replaceAll(RegExp(r'\n{2,}'), '\n')
+      .trim();
+  final lines = plain.split('\n').where((l) => l.trim().isNotEmpty);
+  final optionRegex = RegExp(r'^([A-Z])[\.\、\s]\s*(.+)$');
+  for (final line in lines) {
+    final m = optionRegex.firstMatch(line.trim());
+    if (m != null) {
+      final label = m.group(1)!;
+      result.add(makeOption(
+        label,
+        '<span class="hxdb-option-label">$label.</span>&nbsp;${m.group(2)!.trim()}',
+      ));
+    }
+  }
+  return result;
+}
+
+// ------------------------------------------------------------
+// <bk> 填空标签解析
+// ------------------------------------------------------------
+
+final RegExp _attrIndexRe = RegExp(
+  r'''\bindex\s*=\s*(?:(["'])(.*?)\1|([^\s>]+))''',
+  caseSensitive: false,
+);
+final RegExp _attrTypeRe = RegExp(
+  r'''\btype\s*=\s*(?:(["'])(.*?)\1|([^\s>]+))''',
+  caseSensitive: false,
+);
+final RegExp _attrDataInputRe = RegExp(
+  r'''\bdata-input-type\s*=\s*(?:(["'])(.*?)\1|([^\s>]+))''',
+  caseSensitive: false,
+);
+
+String? _attrValue(RegExpMatch? m) =>
+    m == null ? null : (m.group(2) ?? m.group(3));
+
+/// 解析填空题的 `<bk>` 标签，生成每个空的元数据
+List<BkTagMeta> parseBkTagMetaFromStem(
+  String? stem,
+  String? correctAnswerHtml,
+  String? userAnswerJson, [
+  dynamic iSFilllankItemUpload,
+  List<Map<String, String>>? options,
+]) {
+  if (stem == null || stem.isEmpty) return const [];
+  final correctAnswerMap = correctAnswerHtml != null && correctAnswerHtml.isNotEmpty
+      ? parseCorrectAnswerMapFromHtml(correctAnswerHtml)
+      : <int, String>{};
+  final userAnswerMap = parseUserAnswerMapFromJson(
+    userAnswerJson,
+    jsNumber(iSFilllankItemUpload) == 1,
+  );
+
+  final list = <BkTagMeta>[];
+  final seenIndexes = <int>{};
+  final tagRegex = JRegExp(r'<bk\b([^>]*)>', caseInsensitive: true);
+  JMatch? m;
+  while ((m = tagRegex.exec(stem)) != null) {
+    final attrs = m!(1) ?? '';
+    final indexMatch = _attrIndexRe.firstMatch(attrs);
+    if (indexMatch == null) continue;
+
+    final index = jsNumber(_attrValue(indexMatch))?.toInt() ?? 0;
+    if (index <= 0) continue;
+    if (seenIndexes.contains(index)) continue;
+    seenIndexes.add(index);
+
+    final typeMatch = _attrTypeRe.firstMatch(attrs);
+    final dataInputTypeMatch = _attrDataInputRe.firstMatch(attrs);
+
+    final item = <String, dynamic>{
+      'index': index,
+      'type': _attrValue(typeMatch) ?? '',
+      'dataInputType': _attrValue(dataInputTypeMatch) ?? '',
+      'correctAnswer': correctAnswerMap[index] ?? '',
+      'options': options ?? const [],
+    };
+
+    final fromUser = userAnswerMap[index];
+    final isUpload = jsNumber(iSFilllankItemUpload) == 1;
+    final myAnswer = fromUser?['myAnswer'];
+    final hasImgArray = myAnswer is List &&
+        myAnswer.isNotEmpty &&
+        (myAnswer.first is Map) &&
+        (myAnswer.first as Map)['url'] != null;
+
+    if (isUpload || hasImgArray) {
+      final imgs = myAnswer is List ? myAnswer : const [];
+      if (imgs.isNotEmpty) item['myAnswer'] = imgs;
+    } else {
+      final my = myAnswer is String ? myAnswer.trim() : '';
+      if (my.isNotEmpty) item['myAnswer'] = my;
+    }
+    if (fromUser?['answerStatus'] is int) {
+      item['answerStatus'] = fromUser!['answerStatus'];
+    }
+    list.add(item);
+  }
+  return list;
+}
+
+String _normalizeAnswerUrl(dynamic u) =>
+    '$u'.replaceAll(RegExp(r'[`\s]'), '').trim();
+
+/// 将用户作答 JSON 字符串解析为 {空索引: {myAnswer, answerStatus}}
+Map<int, Map<String, dynamic>> parseUserAnswerMapFromJson([
+  String? userAnswerJson,
+  bool isUpload = false,
+]) {
+  final map = <int, Map<String, dynamic>>{};
+  if (userAnswerJson == null || userAnswerJson.isEmpty) return map;
+  dynamic parsed;
+  try {
+    parsed = _jsonDecode(userAnswerJson);
+  } catch (_) {
+    return map;
+  }
+  if (parsed is! List) return map;
+
+  for (final rawItem in parsed) {
+    if (rawItem is! Map) continue;
+    final item = Map<String, dynamic>.from(rawItem);
+    final idx = jsNumber(item['index'] ?? item['Index'])?.toInt() ?? 0;
+    if (idx <= 0) continue;
+
+    final hasImg = item['Url'] != null ||
+        item['url'] != null ||
+        item['ThumbnailUrl'] != null ||
+        item['thumbnailUrl'] != null;
+
+    if (isUpload || hasImg) {
+      if (item.containsKey('myAnswer') || item.containsKey('answerStatus')) {
+        dynamic myAnswer = item['myAnswer'];
+        if (myAnswer is String) {
+          try {
+            final arr = _jsonDecode(myAnswer);
+            myAnswer = arr is List ? arr : <dynamic>[];
+          } catch (_) {
+            myAnswer = <dynamic>[];
+          }
+        }
+        if (myAnswer is! List) myAnswer = <dynamic>[];
+
+        final answerStatus = item['answerStatus'];
+        final payload = <String, dynamic>{};
+        if (myAnswer.isNotEmpty) payload['myAnswer'] = myAnswer;
+        if (answerStatus is int) payload['answerStatus'] = answerStatus;
+
+        final merged = Map<String, dynamic>.from(map[idx] ?? const {});
+        if (payload.containsKey('myAnswer')) merged['myAnswer'] = payload['myAnswer'];
+        if (payload.containsKey('answerStatus')) {
+          merged['answerStatus'] = payload['answerStatus'];
+        }
+        if (merged.containsKey('myAnswer') || merged.containsKey('answerStatus')) {
+          map[idx] = merged;
+        }
+        continue;
+      }
+
+      final url = _normalizeAnswerUrl(item['Url'] ?? item['url']);
+      if (url.isEmpty) continue;
+      final thumbnailUrl = _normalizeAnswerUrl(
+        item['ThumbnailUrl'] ?? item['thumbnailUrl'] ?? url,
+      );
+      final type = item['Type'] ?? item['type'] ?? 0;
+      final imgItem = <String, dynamic>{
+        ...item,
+        'index': idx,
+        'type': type,
+        'url': url,
+        'thumbnailUrl': thumbnailUrl,
+      };
+
+      final existing = map[idx];
+      final list = existing?['myAnswer'] is List
+          ? List<dynamic>.from(existing!['myAnswer'] as List)
+          : <dynamic>[];
+      list.add(imgItem);
+      map[idx] = {
+        ...?existing,
+        'myAnswer': list,
+      };
+    } else {
+      final myAnswer = item['myAnswer'] is String ? item['myAnswer'] as String : '';
+      final answerStatus = item['answerStatus'];
+      final payload = <String, dynamic>{};
+      if (myAnswer.trim().isNotEmpty) payload['myAnswer'] = myAnswer;
+      if (answerStatus is int) payload['answerStatus'] = answerStatus;
+      if (payload.containsKey('myAnswer') || payload.containsKey('answerStatus')) {
+        map[idx] = payload;
+      }
+    }
+  }
+  return map;
+}
+
+/// 从标准答案 HTML 中按 data-index 切分 hxdb-subquestion 块
+Map<int, String> parseCorrectAnswerMapFromHtml(String html) {
+  final result = <int, String>{};
+  if (html.isEmpty) return result;
+
+  final startTagRegex = JRegExp(
+    r'''<div\b([^>]*)\bclass\s*=\s*(["'])([^"']*\bhxdb-subquestion\b[^"']*)\2([^>]*)>''',
+  );
+  JMatch? match;
+  while ((match = startTagRegex.exec(html)) != null) {
+    final attrs = '${match!(1) ?? ''} ${match(3) ?? ''} ${match(4) ?? ''}';
+    final indexMatch = RegExp(
+      r'''\bdata-index\s*=\s*(["'])(\d+)\1''',
+      caseSensitive: false,
+    ).firstMatch(attrs);
+    if (indexMatch == null) continue;
+    final idx = int.tryParse(indexMatch.group(2)!) ?? 0;
+    if (idx <= 0) continue;
+    final fullBlock = findFullElement(html, match);
+    result[idx] = fullBlock;
+  }
+  return result;
+}
+
+// ------------------------------------------------------------
+// 题型 / 排序 / 答案清洗
+// ------------------------------------------------------------
+
+/// 判断题识别：命中则向 options 补“正确/错误”两项
+bool processPanDuan(Map<String, dynamic>? detail, List<Map<String, String>> options) {
+  final answer = '${detail?['answer'] ?? ''}';
+  final typeId = '${detail?['questionTypeId'] ?? ''}';
+
+  final isPanduan = answer.contains('data-hxdb-type="panduanti"') ||
+      typeId == '12352066848751621' ||
+      typeId == '792156155195462';
+
+  if (isPanduan) {
+    if (options.isEmpty) {
+      options
+        ..add(makeOption('正确', '正确'))
+        ..add(makeOption('错误', '错误'));
+    }
+    return true;
+  }
+  return false;
+}
+
+/// 题型代码（对标 Vue getQuestionTypeCode）
+String getQuestionTypeCode(dynamic typeId, dynamic isObjective, [dynamic typecodeKey]) {
+  final id = '$typeId';
+  if (typecodeKey != null &&
+      '$typecodeKey'.isNotEmpty &&
+      QuestionTypeCodeMap.typeCode.containsKey('$typecodeKey')) {
+    return QuestionTypeCodeMap.typeCode['$typecodeKey']!;
+  }
+  if (isObjective == true) {
+    return QuestionTypeCodeMap.objective[id] ?? '';
+  }
+  return QuestionTypeCodeMap.subjective[id] ?? '';
+}
+
+/// 给题目（含子题）追加从 1 开始的连续 sort
+List<Map<String, dynamic>> appendQuestionSort(List<dynamic>? questions) {
+  if (questions == null) return const [];
+  var sort = 1;
+  return questions.map((rawItem) {
+    final item = rawItem is Map
+        ? Map<String, dynamic>.from(rawItem)
+        : <String, dynamic>{};
+    final hasChild = item['hasChild'] == true;
+    final hasSubQuestions = item['subQuestions'] is List &&
+        (item['subQuestions'] as List).isNotEmpty;
+
+    if (hasChild && hasSubQuestions) {
+      final subQuestions = (item['subQuestions'] as List).map((rawSub) {
+        final sub = Map<String, dynamic>.from(rawSub as Map);
+        sub['sort'] = sort++;
+        return sub;
+      }).toList();
+      return {
+        ...item,
+        'subQuestions': subQuestions,
+      };
+    }
+    return {
+      ...item,
+      'sort': sort++,
+    };
+  }).toList();
+}
+
+/// 去 HTML 标签（对标 Vue stripAnswerPlain）
+String stripAnswerPlain(dynamic html) {
+  if (html == null) return '';
+  return '$html'.replaceAll(RegExp(r'<[^>]+>'), '').trim();
+}
+
+// ------------------------------------------------------------
+// 富文本清洗
+// ------------------------------------------------------------
+
+final RegExp _htmlAttrNameRe = RegExp(r'^[A-Za-z_:][A-Za-z0-9:._-]*$');
+
+String _normalizeRichTextUrl(String value) =>
+    value.replaceAll(RegExp(r'[`\s]'), '').trim();
+
+/// 统一处理 HTML 中图片尺寸样式（Flutter 为非 MP 端，尺寸输出 px）
+String fixImageStyles(String? html) {
+  if (html == null || html.isEmpty) return '';
+  return html.replaceAllMapped(RegExp(r'<img\b([^>]*)>', caseSensitive: false),
+      (match) {
+    var newAttrs = match.group(1)!;
+    var extractedWidth = '';
+    var extractedHeight = '';
+
+    // 提取并移除原有 width/height 属性
+    newAttrs = newAttrs.replaceAllMapped(
+      RegExp(
+        r'''\b(width|height)\s*=\s*(?:(["'])(.*?)\2|([^\s>]+))''',
+        caseSensitive: false,
+      ),
+      (m) {
+        final attrName = (m.group(1) ?? '').toLowerCase();
+        final val = m.group(3) ?? m.group(4) ?? '';
+        if (attrName == 'width') extractedWidth = val;
+        if (attrName == 'height') extractedHeight = val;
+        return '';
+      },
+    );
+
+    final styleObj = <String, String>{};
+    if (RegExp(r'\bstyle\s*=\s*', caseSensitive: false).hasMatch(newAttrs)) {
+      newAttrs = newAttrs.replaceAllMapped(
+        RegExp(r'''\bstyle\s*=\s*(["'])([\s\S]*?)\1''', caseSensitive: false),
+        (m) {
+          final styleValue = m.group(2) ?? '';
+          for (final item in styleValue.split(';')) {
+            final idx = item.indexOf(':');
+            if (idx > 0) {
+              final key = item.substring(0, idx).trim().toLowerCase();
+              final value = item.substring(idx + 1).trim();
+              if (key.isNotEmpty && value.isNotEmpty) styleObj[key] = value;
+            }
+          }
+          return '';
+        },
+      );
+    }
+
+    if (styleObj['width'] != null && extractedWidth.isEmpty) {
+      extractedWidth = styleObj['width']!;
+    }
+    if (styleObj['height'] != null && extractedHeight.isEmpty) {
+      extractedHeight = styleObj['height']!;
+    }
+
+    styleObj.remove('width');
+    styleObj.remove('height');
+    styleObj.remove('display');
+
+    // 非 MP-WEIXIN：纯数字尺寸输出 px
+    String processSize(String sizeVal) {
+      if (sizeVal.isEmpty) return '';
+      sizeVal = sizeVal.trim().toLowerCase();
+      if (RegExp(r'(ex|em|rem|%|vw|vh|rpx|auto)$').hasMatch(sizeVal)) {
+        return sizeVal;
+      }
+      final numMatch = RegExp(r'^([0-9.]+)').firstMatch(sizeVal);
+      if (numMatch != null) {
+        final num = double.tryParse(numMatch.group(1)!);
+        if (num != null) {
+          return '${num}px';
+        }
+      }
+      return sizeVal;
+    }
+
+    final finalWidth = processSize(extractedWidth);
+    final finalHeight = processSize(extractedHeight);
+
+    if (finalWidth.isNotEmpty) styleObj['width'] = finalWidth;
+    if (finalHeight.isNotEmpty) styleObj['height'] = finalHeight;
+
+    styleObj['max-width'] = '100% !important';
+
+    if (finalWidth.isEmpty && finalHeight.isEmpty) {
+      styleObj['display'] = 'block';
+      styleObj['margin'] = '10rpx auto';
+    } else {
+      styleObj['display'] = 'inline-block !important';
+      styleObj['vertical-align'] = 'middle !important';
+      styleObj['padding'] = '5px 0 !important';
+      styleObj['margin'] = '0 2px !important';
+    }
+
+    final styleStr = styleObj.entries
+        .map((e) => '${e.key}: ${e.value}')
+        .join('; ');
+    newAttrs += ' style="$styleStr"';
+    return '<img$newAttrs>';
+  });
+}
+
+String _sanitizeHtmlAttributeValue(String name, String value) {
+  var normalized = value.replaceAll(RegExp(r'[\x00-\x1F\x7F]'), '');
+  if (RegExp(r'^(src|href|poster)$', caseSensitive: false).hasMatch(name)) {
+    normalized = _normalizeRichTextUrl(normalized);
+  } else if (name == 'style') {
+    normalized = normalized.replaceAll('"', '').replaceAll(RegExp(r'\s+'), ' ').trim();
+  }
+  return normalized.replaceAll('"', '&quot;');
+}
+
+String _sanitizeHtmlTag(String tag) {
+  if (tag.isEmpty || tag.startsWith('</') || tag.startsWith('<!')) {
+    return tag;
+  }
+  final tagMatch = RegExp(r'^<([A-Za-z0-9-]+)([\s\S]*?)(/?)>$').firstMatch(tag);
+  if (tagMatch == null) return tag;
+
+  final tagName = tagMatch.group(1)!;
+  final rawAttrs = tagMatch.group(2) ?? '';
+  final selfClosing = tagMatch.group(3) ?? '';
+  final attrs = <String>[];
+  final attrRegex = RegExp(
+    r'''([^\s"'<>/=]+)(?:\s*=\s*(?:"([^"]*)"|'([^']*)'|([^\s"'=<>`]+)))?''',
+  );
+  for (final attrMatch in attrRegex.allMatches(rawAttrs)) {
+    final attrName = (attrMatch.group(1) ?? '').trim();
+    if (!_htmlAttrNameRe.hasMatch(attrName)) continue;
+
+    final hasValue = attrMatch.group(2) != null ||
+        attrMatch.group(3) != null ||
+        attrMatch.group(4) != null;
+    if (!hasValue) {
+      attrs.add(attrName);
+      continue;
+    }
+    final attrValue = attrMatch.group(2) ?? attrMatch.group(3) ?? attrMatch.group(4) ?? '';
+    attrs.add('$attrName="${_sanitizeHtmlAttributeValue(attrName, attrValue)}"');
+  }
+
+  return '<$tagName${attrs.isNotEmpty ? ' ${attrs.join(' ')}' : ''}${selfClosing.isNotEmpty ? ' /' : ''}>';
+}
+
+/// 修复编辑器产生的破碎 style 属性（font-family 被拆碎等）
+String _repairMalformedTagAttributes(String html) {
+  if (html.isEmpty) return '';
+  return html.replaceAllMapped(RegExp(r'<[^>]+>'), (m) {
+    var tag = m.group(0)!;
+    if (tag.startsWith('</') || tag.startsWith('<!') ||
+        !RegExp(r'\bstyle\s*=').hasMatch(tag)) {
+      return tag;
+    }
+    final brokenFontFamily = RegExp(
+      r'''\sstyle=(["'])\s*font-family\s*:\s*\1''',
+      caseSensitive: false,
+    ).hasMatch(tag);
+    if (!brokenFontFamily) return tag;
+
+    tag = tag.replaceAll(
+      RegExp(r'''\sstyle=(["'])\s*font-family\s*:\s*\1''', caseSensitive: false),
+      '',
+    );
+    tag = tag.replaceAll(
+      RegExp(r'''\s+[a-zA-Z][a-zA-Z0-9-]*=""(?=[\s/>])'''),
+      '',
+    );
+    tag = tag.replaceAll(RegExp(r'\s{2,}'), ' ');
+    return tag;
+  });
+}
+
+/// 将 <audio>/<video> 内 <source src> 提升到父标签
+String _hoistMediaSourceToParent(String html) {
+  if (html.isEmpty) return '';
+  return html.replaceAllMapped(
+    RegExp(r'<(audio|video)\b([^>]*)>([\s\S]*?)</\1>', caseSensitive: false),
+    (m) {
+      final tagName = m.group(1)!;
+      final rawAttrs = m.group(2) ?? '';
+      final innerHtml = m.group(3) ?? '';
+
+      final directSrcMatch = RegExp(
+        r'''\bsrc\s*=\s*(["'])(.*?)\1''',
+        caseSensitive: false,
+      ).firstMatch(rawAttrs);
+      final sourceSrcMatch = RegExp(
+        r'''<source\b[^>]*\bsrc\s*=\s*(["'])(.*?)\1''',
+        caseSensitive: false,
+      ).firstMatch(innerHtml);
+      final finalSrc = _normalizeRichTextUrl(
+        (directSrcMatch?.group(2) ?? sourceSrcMatch?.group(2) ?? ''),
+      );
+      if (finalSrc.isEmpty) return m.group(0)!;
+
+      var nextAttrs = rawAttrs;
+      if (directSrcMatch != null) {
+        nextAttrs = nextAttrs.replaceFirst(directSrcMatch.group(0)!, 'src="$finalSrc"');
+      } else {
+        nextAttrs = '$nextAttrs src="$finalSrc"';
+      }
+      return '<$tagName$nextAttrs></$tagName>';
+    },
+  );
+}
+
+/// 富文本进入组件前的轻量清洗
+String sanitizeRichTextHtml(String? content) {
+  if (content == null || content.isEmpty) return '';
+  var result = fixImageStyles(content);
+  result = _repairMalformedTagAttributes(result);
+  result = _hoistMediaSourceToParent(result);
+
+  result = result.replaceAllMapped(
+    RegExp(r'''\sstyle=(["'])([\s\S]*?)\1''', caseSensitive: false),
+    (m) {
+      final raw = m.group(2) ?? '';
+      if (RegExp(r'^\s*font-family\s*:\s*;?\s*$', caseSensitive: false).hasMatch(raw)) {
+        return '';
+      }
+      return m.group(0)!;
+    },
+  );
+
+  // 移除 KaTeX 隐藏 MathML
+  result = result.replaceAll(
+    RegExp(
+      r'''<span\b[^>]*class=(["'])[^"']*\bkatex-mathml\b[^"']*\1[^>]*>[\s\S]*?</span>''',
+      caseSensitive: false,
+    ),
+    '',
+  );
+  result = result.replaceAllMapped(
+    RegExp(
+      r'''<(audio|video|img|source)\b[^>]*?(?:src|poster)\s*=\s*(["'])(.*?)\2''',
+      caseSensitive: false,
+    ),
+    (m) {
+      final cleanedUrl = _normalizeRichTextUrl(m.group(3) ?? '');
+      return m.group(0)!.replaceFirst(m.group(3)!, cleanedUrl);
+    },
+  );
+
+  return result.replaceAllMapped(
+    RegExp(r'</?[A-Za-z][^>]*>'),
+    (m) => _sanitizeHtmlTag(m.group(0)!),
+  );
+}
+
+/// 富文本清洗 + 空内容兜底
+String cleanRichText(String? content, [String defaultText = '']) {
+  if (content == null || content.isEmpty) return defaultText;
+
+  var result = fixImageStyles(content);
+  result = sanitizeRichTextHtml(result).replaceAll(
+    RegExp(r'<br>\s*<br>'),
+    '<br>',
+  );
+  result = result.replaceAllMapped(
+    RegExp(r'''src=(["'])(.*?)\1'''),
+    (m) => 'src=${m.group(1)}${(m.group(2) ?? '').replaceAll(RegExp(r'[`\s]'), '')}${m.group(1)}',
+  );
+
+  final plainText = result
+      .replaceAll(RegExp(r'<[^>]+>'), '')
+      .replaceAll('&nbsp;', '')
+      .trim();
+  final hasImgOrVideo = RegExp(
+    r'<(img|video|audio|iframe|embed|object|source)[^>]*>',
+    caseSensitive: false,
+  ).hasMatch(result);
+
+  if (plainText.isEmpty && !hasImgOrVideo) return defaultText;
+  return result.isEmpty ? defaultText : result;
+}
+
+// ------------------------------------------------------------
+// 数学填空圈号
+// ------------------------------------------------------------
+
+const List<String> _circledNumbers = [
+  '①','②','③','④','⑤','⑥','⑦','⑧','⑨','⑩',
+  '⑪','⑫','⑬','⑭','⑮','⑯','⑰','⑱','⑲','⑳',
+  '㉑','㉒','㉓','㉔','㉕','㉖','㉗','㉘','㉙','㉚',
+  '㉛','㉜','㉝','㉞','㉟','㊱','㊲','㊳','㊴','㊵',
+  '㊶','㊷','㊸','㊹','㊺','㊻','㊼','㊽','㊾','㊿',
+];
+
+/// 将题干数字占位符替换成圈号（数学学科）
+String convertBlankToCircled(String? stem) {
+  if (stem == null || stem.isEmpty) return stem ?? '';
+
+  // 1. ___数字___ → ___①___（跳过 URL/文件名场景）
+  var result = stem.replaceAllMapped(
+    RegExp(r'(_+)(\d+)(_+)', caseSensitive: false),
+    (m) {
+      final prevChar = m.start > 0 ? stem[m.start - 1] : '';
+      final nextChar = m.end < stem.length ? stem[m.end] : '';
+      if (RegExp(r'[a-zA-Z0-9_\-./]').hasMatch(prevChar) ||
+          RegExp(r'[a-zA-Z0-9_\-./]').hasMatch(nextChar)) {
+        return m.group(0)!;
+      }
+      final num = int.tryParse(m.group(2)!) ?? 0;
+      if (num >= 1 && num <= 50) {
+        return '${m.group(1)}${_circledNumbers[num - 1]}${m.group(3)}';
+      }
+      return m.group(0)!;
+    },
+  );
+
+  // 2. text-decoration:underline 标签内纯数字 → 圈号
+  result = result.replaceAllMapped(
+    RegExp(
+      r'''(<[^>]*style=["'][^"']*text-decoration:\s*underline[^"']*["'][^>]*>)([\s\S]*?)(</[a-zA-Z][^>]*>)''',
+      caseSensitive: false,
+    ),
+    (m) {
+      final openTag = m.group(1)!;
+      final content = m.group(2)!;
+      final closeTag = m.group(3)!;
+      final textOnly = content
+          .replaceAll(RegExp(r'<[^>]+>'), '')
+          .replaceAll('&nbsp;', ' ')
+          .trim();
+      if (RegExp(r'^\d+$').hasMatch(textOnly)) {
+        final num = int.tryParse(textOnly) ?? 0;
+        if (num >= 1 && num <= 50) {
+          final newOpenTag = openTag.replaceAll(
+            RegExp(r'text-decoration:\s*underline', caseSensitive: false),
+            'text-decoration:underline;text-underline-offset:3px',
+          );
+          return '$newOpenTag${content.replaceFirst(RegExp(r'\d+'), _circledNumbers[num - 1])}$closeTag';
+        }
+      }
+      return m.group(0)!;
+    },
+  );
+
+  return result;
+}
+
+// ------------------------------------------------------------
+// 复合题题干：<bk> → 可点击 <a href="#subquestion-N">
+// ------------------------------------------------------------
+
+/// 格式化复合题题干（subQuestions 为解析后的子题 Map 列表）
+String formatCompoundStem(
+  String? stem,
+  int activeSubIndex, {
+  bool disableHighlight = false,
+  List<Map<String, dynamic>> subQuestions = const [],
+}) {
+  if (stem == null || stem.isEmpty) return '暂无题干';
+  var formattedStem = stem;
+
+  // 非自闭合 <bk ...>...</bk>
+  formattedStem = formattedStem.replaceAllMapped(
+    RegExp(r'<bk\b([^>]*)>([\s\S]*?)</bk>', caseSensitive: false),
+    (m) {
+      final attrs = m.group(1) ?? '';
+      final inner = m.group(2) ?? '';
+      final indexMatch = RegExp(
+        r'''(?:^|\s)index\s*=(['"]?)([^'"\s>]+)\1''',
+        caseSensitive: false,
+      ).firstMatch(attrs);
+      if (indexMatch == null) return m.group(0)!;
+      final idx = (int.tryParse(indexMatch.group(2)!) ?? 1) - 1;
+      final hasNumber = RegExp(r'\d').hasMatch(inner);
+      final isOnlyNumber = RegExp(r'^\s*\d+\s*$').hasMatch(inner);
+      var content = inner;
+      if (!isOnlyNumber && !hasNumber) {
+        content = '___${idx + 1}___';
+      }
+      return '<a data-idx="$idx">$content</a>';
+    },
+  );
+
+  // 自闭合 <bk ... />
+  formattedStem = formattedStem.replaceAllMapped(
+    RegExp(r'<bk\b([^>]*?)\s*/\s*>', caseSensitive: false),
+    (m) {
+      final attrs = m.group(1) ?? '';
+      final indexMatch = RegExp(
+        r'''(?:^|\s)index\s*=(['"]?)([^'"\s>]+)\1''',
+        caseSensitive: false,
+      ).firstMatch(attrs);
+      if (indexMatch == null) return m.group(0)!;
+      final idx = (int.tryParse(indexMatch.group(2)!) ?? 1) - 1;
+      return '<a data-idx="$idx">___${idx + 1}___</a>';
+    },
+  );
+
+  // 保护所有 HTML 标签，避免属性/标签内部文本被替换
+  final tagPlaceholders = <String>[];
+  var tagCounter = 0;
+  final protectedStem = formattedStem.replaceAllMapped(
+    RegExp(r'''<(?:[^>"']|"[^"]*"|'[^']*')*>'''),
+    (m) {
+      final token = '__TAG_${tagCounter++}__';
+      tagPlaceholders.add(m.group(0)!);
+      return token;
+    },
+  );
+
+  // 纯文本 ___数字___ → <a data-idx>
+  var processedStem = protectedStem.replaceAllMapped(
+    RegExp(r'(_+)(\d+)(_+)', caseSensitive: false),
+    (m) {
+      final src = m.input;
+      final prevChar = m.start > 0 ? src[m.start - 1] : '';
+      final nextChar = m.end < src.length ? src[m.end] : '';
+      if (RegExp(r'[a-zA-Z0-9_\-./]').hasMatch(prevChar) ||
+          RegExp(r'[a-zA-Z0-9_\-./]').hasMatch(nextChar)) {
+        return m.group(0)!;
+      }
+      final idx = (int.tryParse(m.group(2)!) ?? 1) - 1;
+      return '<a data-idx="$idx">${m.group(0)}</a>';
+    },
+  );
+
+  processedStem = processedStem.replaceAllMapped(
+    RegExp(r'__TAG_(\d+)__'),
+    (m) => tagPlaceholders[int.parse(m.group(1)!)],
+  );
+  formattedStem = processedStem;
+
+  // 注入样式/激活态/跳转链接
+  formattedStem = formattedStem.replaceAllMapped(
+    RegExp(r'<a data-idx="(\d+)">([\s\S]*?)</a>', caseSensitive: false),
+    (m) {
+      final idxStr = m.group(1)!;
+      final content = m.group(2) ?? '';
+      final textOnly = content
+          .replaceAll(RegExp(r'<[^>]+>'), '')
+          .replaceAll('&nbsp;', ' ')
+          .trim();
+      final hasImg = RegExp(r'<img', caseSensitive: false).hasMatch(content);
+
+      if (textOnly.isEmpty && !hasImg) return content;
+
+      final dataIdx = int.tryParse(idxStr) ?? -1;
+      var isActive = false;
+      var targetSubIndex = dataIdx;
+
+      if (subQuestions.isNotEmpty) {
+        if (dataIdx >= 0 && dataIdx < subQuestions.length) {
+          targetSubIndex = dataIdx;
+          isActive = dataIdx == activeSubIndex;
+        } else {
+          final numMatch = RegExp(r'\d+').firstMatch(textOnly);
+          var matchedIndex = -1;
+          if (numMatch != null) {
+            final textNum = int.parse(numMatch.group(0)!);
+            matchedIndex = subQuestions.indexWhere(
+                (q) => jsNumber(q['sort'])?.toInt() == textNum);
+            if (matchedIndex == -1) {
+              matchedIndex = subQuestions.indexWhere((q) {
+                final stemMatch = RegExp(
+                  r'''<label[^>]*>.*?(\d+)\.\s*(?:&nbsp;)*</label>|<p>.*?(\d+)\.\s*(?:&nbsp;)*</p>''',
+                  caseSensitive: false,
+                  dotAll: true,
+                ).firstMatch('${q['stem'] ?? ''}');
+                if (stemMatch != null) {
+                  final n = int.tryParse(stemMatch.group(1) ?? stemMatch.group(2) ?? '');
+                  return n == textNum;
+                }
+                return false;
+              });
+            }
+          }
+          if (matchedIndex != -1) {
+            targetSubIndex = matchedIndex;
+            isActive = matchedIndex == activeSubIndex;
+          } else {
+            targetSubIndex = -1;
+            isActive = false;
+          }
+        }
+      } else {
+        isActive = dataIdx == activeSubIndex;
+      }
+
+      const baseStyle =
+          'text-decoration: none; color: inherit; cursor: pointer; display: inline-block; line-height: 1; margin: 0 4px; white-space: nowrap; word-break: keep-all; vertical-align: middle;';
+      var activeStyle = 'border: 1px solid transparent; padding: 0 2px;';
+
+      if (isActive && !disableHighlight) {
+        final shouldHighlight = RegExp(r'\d').hasMatch(textOnly) ||
+            RegExp(r'_+').hasMatch(textOnly) ||
+            hasImg;
+        if (shouldHighlight) {
+          activeStyle =
+              'line-height:24rpx;height:24px;border: 1px solid rgba(61, 125, 245, 1); border-radius: 8px; background: rgba(41, 121, 255, 0.1); box-sizing: border-box; padding: 0 4px;';
+        }
+      }
+
+      return '<a href="#subquestion-$targetSubIndex" id="subquestion-$targetSubIndex" style="$baseStyle $activeStyle">$content</a>';
+    },
+  );
+
+  return formattedStem;
+}
+
+// ------------------------------------------------------------
+// 内部工具
+// ------------------------------------------------------------
+
+dynamic _jsonDecode(String text) => jsonDecode(text);

lib/core/utils/question/question_parser_non_standard.dart

@@ -0,0 +1,204 @@
+/// ============================================================
+/// 非标准题 / 单题解析器（1:1 移植 Vue utils/questionParserNonStandard.ts）
+///
+/// 处理不带 childs 的独立题目：单选 / 多选 / 判断 / 填空。
+/// 七选五与多空填空题会在本地构造 childs 后转交 Standard 解析器。
+/// ============================================================
+library;
+
+import 'question_parser_base.dart';
+import 'question_parser_standard.dart';
+import 'formula.dart';
+
+Map<String, dynamic> parseNonStandardQuestion(
+  Map<String, dynamic> questionData,
+  String rawStemIn,
+  String rawAnswer,
+  String rawCorrectAnswer,
+  String analysis,
+) {
+  var rawStem = rawStemIn;
+  final options = <Map<String, String>>[];
+  var isSelect = questionData['isSelect'] == true;
+  var isMainPanDuan = false;
+
+  // 1) 主判断题
+  if (processPanDuan(questionData, options)) {
+    isSelect = true;
+    isMainPanDuan = true;
+  }
+
+  // 2) 题干选项表
+  final optionTableRegex = RegExp(
+    r'<([a-zA-Z][a-zA-Z0-9]*)[^>]*class="[^"]*hxdb-option-table(?!-wrapper)[^"]*"[^>]*>([\s\S]*?)</\1>',
+    caseSensitive: false,
+  );
+  final match = optionTableRegex.firstMatch(rawStem);
+  if (match != null) {
+    isSelect = true;
+    options.addAll(extractOptionsFromHtml(match.group(2) ?? ''));
+    rawStem = rawStem.replaceFirst(optionTableRegex, '');
+  }
+
+  var finalQuestionTypes = getQuestionTypeCode(
+    questionData['questionTypeId'],
+    questionData['isObjective'],
+    questionData['questionTypeCode'],
+  );
+
+  // 3) 纯文本选项兜底
+  if (options.isEmpty &&
+      (finalQuestionTypes == 'danxuanti' || finalQuestionTypes == 'duoxuanti')) {
+    final plainOptions = extractPlainTextOptions(rawStem);
+    if (plainOptions.isNotEmpty) {
+      options.addAll(plainOptions);
+      isSelect = true;
+    }
+  }
+
+  if (isMainPanDuan) {
+    finalQuestionTypes = 'panduanti';
+  }
+
+  // --- 七选五：按填空元数据构造 childs，转复合题 ---
+  if (finalQuestionTypes == 'qixuanwu') {
+    final metas = parseBkTagMetaFromStem(
+      rawStem,
+      rawCorrectAnswer,
+      questionData['userAnswer']?.toString(),
+      questionData['iSFilllankItemUpload'],
+      options,
+    );
+    if (metas.isNotEmpty) {
+      final indexes = (questionData['indexes'] as List?) ?? const [];
+      final generatedChilds = List.generate(metas.length, (index) {
+        final meta = metas[index];
+        return <String, dynamic>{
+          ...meta,
+          'id': '${questionData['id']}_${meta['index']}',
+          'stem': '',
+          'answer': meta['correctAnswer'],
+          'isObjective': true,
+          'questionTypes': 'qixuanwu_sub',
+          'options': options,
+          if (index < indexes.length && indexes[index] is Map)
+            ...Map<String, dynamic>.from(indexes[index] as Map),
+          'sort': meta['index'],
+        };
+      });
+
+      final compositeData = <String, dynamic>{
+        ...questionData,
+        'hasChild': true,
+        'isObjective': false,
+        'childs': generatedChilds,
+        'questionTypes': 'qixuanwu',
+      };
+      return parseStandardQuestion(
+        compositeData, rawStem, rawAnswer, rawCorrectAnswer, analysis);
+    }
+  }
+
+  // --- 填空题：构造 childs 转复合题 ---
+  if (finalQuestionTypes == 'tiankongti') {
+    var metasList = parseBkTagMetaFromStem(
+      rawStem,
+      rawCorrectAnswer,
+      questionData['userAnswer']?.toString(),
+      questionData['iSFilllankItemUpload'],
+    );
+    if (metasList.isEmpty) {
+      metasList = [
+        {
+          'index': 1,
+          'type': 0,
+          'dataInputType': 0,
+          'correctAnswer': rawCorrectAnswer,
+          'questionTypes': 'tiankongti',
+          'iSFilllankItemUpload': questionData['iSFilllankItemUpload'],
+        }
+      ];
+      final userAnswerMap = parseUserAnswerMapFromJson(
+        questionData['userAnswer']?.toString(),
+        questionData['iSFilllankItemUpload'] == 1,
+      );
+      final fromUser = userAnswerMap[1];
+      if (fromUser != null) {
+        final isUpload = questionData['iSFilllankItemUpload'] == 1;
+        final myAnswer = fromUser['myAnswer'];
+        final hasImgArray = myAnswer is List &&
+            myAnswer.isNotEmpty &&
+            myAnswer.first is Map &&
+            (myAnswer.first as Map)['url'] != null;
+        if (isUpload || hasImgArray) {
+          metasList[0]['myAnswer'] = myAnswer is List ? myAnswer : const [];
+        } else {
+          metasList[0]['myAnswer'] = myAnswer is String ? myAnswer.trim() : '';
+        }
+        if (fromUser['answerStatus'] is int) {
+          metasList[0]['answerStatus'] = fromUser['answerStatus'];
+        }
+      }
+    }
+    if (metasList.isNotEmpty) {
+      final indexes = (questionData['indexes'] as List?) ?? const [];
+      final generatedChilds = List.generate(metasList.length, (index) {
+        final meta = metasList[index];
+        return <String, dynamic>{
+          ...meta,
+          'id': '${questionData['id']}_${meta['index']}',
+          'questionId': questionData['id'],
+          'stem': '',
+          'answer': meta['correctAnswer'],
+          'isObjective': false,
+          'questionTypes': 'tiankongti',
+          'iSFilllankItemUpload': questionData['iSFilllankItemUpload'],
+          if (index < indexes.length && indexes[index] is Map)
+            ...Map<String, dynamic>.from(indexes[index] as Map),
+          'sort': meta['index'],
+        };
+      });
+      final compositeData = <String, dynamic>{
+        ...questionData,
+        'hasChild': true,
+        'isObjective': false,
+        'childs': generatedChilds,
+        'questionTypes': 'tiankongti',
+        'iSFilllankItemUpload': questionData['iSFilllankItemUpload'],
+      };
+      return parseStandardQuestion(
+        compositeData, rawStem, rawAnswer, rawCorrectAnswer, analysis);
+    }
+  }
+
+  final optionSource = options.isNotEmpty
+      ? options
+      : ((questionData['options'] as List?)?.whereType<Map>().toList() ?? const []);
+
+  return {
+    ...questionData,
+    'raw': questionData,
+    'stem': fixImageStyles(renderLatexInHtml(rawStem)),
+    'options': optionSource.map((rawOpt) {
+      final opt = Map<String, dynamic>.from(rawOpt);
+      return {
+        ...opt,
+        'options': fixImageStyles(renderLatexInHtml('${opt['options'] ?? ''}')),
+      };
+    }).toList(),
+    'isSelect': isSelect,
+    'questionTypes': finalQuestionTypes,
+    'answer': rawAnswer,
+    'analysis': fixImageStyles(renderLatexInHtml(analysis)),
+    'subQuestions': const [],
+    if (finalQuestionTypes == 'tiankongti')
+      'bkTagMetaList': [
+        {
+          'index': 1,
+          'type': 0,
+          'dataInputType': 0,
+          'correctAnswer': fixImageStyles(renderLatexInHtml(rawCorrectAnswer)),
+        }
+      ],
+  };
+}

lib/core/utils/question/question_parser_standard.dart

@@ -0,0 +1,337 @@
+/// ============================================================
+/// 标准复合题解析器（1:1 移植 Vue utils/questionParserStandard.ts）
+///
+/// 处理带 childs 的复合题（阅读理解、完形填空、听力等）：
+/// 提取子题题干 / 选项 / 题型 / 答案，清洗大题干。
+/// ============================================================
+library;
+
+import 'question_parser_base.dart';
+import 'formula.dart';
+import 'js_regex.dart';
+
+bool _truthy(dynamic v) {
+  if (v == null) return false;
+  if (v is bool) return v;
+  if (v is num) return v != 0;
+  if (v is String) return v.isNotEmpty && v != '0';
+  return true;
+}
+
+/// answerAnalysis 字段可能是字符串，也可能是 {analysis: '...'}
+String analysisTextOf(dynamic v) {
+  if (v == null) return '';
+  if (v is Map) return '${v['analysis'] ?? ''}';
+  return '$v';
+}
+
+String _latex(dynamic v) => renderLatexInHtml(v == null ? '' : '$v');
+
+Map<String, dynamic> _renderBk(Map<String, dynamic> bk) {
+  return {
+    ...bk,
+    'correctAnswer': fixImageStyles(_latex(bk['correctAnswer'])),
+  };
+}
+
+Map<String, dynamic> parseStandardQuestion(
+  Map<String, dynamic> questionData,
+  String rawStem,
+  String rawAnswer,
+  String rawCorrectAnswer,
+  String analysis,
+) {
+  final options = <Map<String, String>>[];
+  var isSelect = _truthy(questionData['isSelect']);
+
+  final subQuestions = <Map<String, dynamic>>[];
+  var newStem = rawStem;
+
+  final childsRaw = (questionData['childs'] as List?) ?? const [];
+
+  for (var index = 0; index < childsRaw.length; index++) {
+    final child = Map<String, dynamic>.from(childsRaw[index] as Map);
+    final subOptions = <Map<String, String>>[];
+    var childStem = _latex(child['stem']);
+    var childAnswer = '${child['answer'] ?? ''}';
+    var childRawAnalysis = _latex(
+      child['answerAnalysis'] is Map
+          ? (child['answerAnalysis'] as Map)['analysis']
+          : (child['answerAnalysis'] ?? child['analysis']),
+    );
+
+    // 子题无独立答案时，从大题干答案 rawAnswer 中按 data-index 提取
+    if (childAnswer.isEmpty && rawAnswer.isNotEmpty) {
+      final subAnswerRegex = JRegExp(
+        '<([a-zA-Z][a-zA-Z0-9]*)(?=[^>]*class="[^"]*hxdb-subquestion[^"]*")'
+        '(?=[^>]*data-index="${index + 1}")[^>]*>',
+      );
+      final match = subAnswerRegex.exec(rawAnswer);
+      if (match != null) {
+        childAnswer = findFullElement(rawAnswer, match);
+      }
+    }
+
+    final childAnalysis = childRawAnalysis;
+
+    // 1) 从大题干中提取属于该子题的内容 / 选项表格
+    final subquestionRegex = JRegExp(
+      '<([a-zA-Z][a-zA-Z0-9]*)(?=[^>]*class="[^"]*(?:hxdb-subquestion|hxdb-option-table-wrapper)[^"]*")'
+      '(?=[^>]*data-index="${index + 1}")[^>]*>',
+    );
+
+    JMatch? subMatch;
+    while ((subMatch = subquestionRegex.exec(newStem)) != null) {
+      final fullBlock = findFullElement(newStem, subMatch!);
+      final startTag = subMatch.group0;
+      final tagNameLen = (subMatch(1) ?? '').length;
+      final divContent = fullBlock.substring(
+        startTag.length,
+        fullBlock.length - (tagNameLen + 3),
+      );
+
+      if (childStem.isEmpty || childStem == '<p></p>') {
+        childStem = divContent;
+      }
+
+      subOptions.addAll(extractOptionsFromHtml(divContent));
+      newStem = newStem.replaceFirst(fullBlock, '');
+      subquestionRegex.reset();
+    }
+
+    // 2) 从子题自身 stem 提取选项
+    final optionTableRegex = RegExp(
+      r'<([a-zA-Z][a-zA-Z0-9]*)[^>]*class="[^"]*hxdb-(?:sub-)?option-table(?!-wrapper)[^"]*"[^>]*>([\s\S]*?)</\1>',
+      caseSensitive: false,
+    );
+    final childMatch = optionTableRegex.firstMatch(childStem);
+    if (childMatch != null) {
+      if (subOptions.isEmpty) {
+        subOptions.addAll(extractOptionsFromHtml(childMatch.group(2) ?? ''));
+      }
+      childStem = childStem.replaceFirst(optionTableRegex, '');
+    }
+
+    if (subOptions.isEmpty &&
+        RegExp(r'hxdb-sub-option-table', caseSensitive: false).hasMatch(childStem)) {
+      subOptions.addAll(extractOptionsFromHtml(childStem));
+    }
+
+    // 按 optionLabel 去重
+    final seenLabels = <String>{};
+    final deduped = subOptions.where((opt) {
+      if (opt['optionLabel']!.isEmpty) return true;
+      if (seenLabels.contains(opt['optionLabel'])) return false;
+      seenLabels.add(opt['optionLabel']!);
+      return true;
+    }).toList();
+    subOptions
+      ..clear()
+      ..addAll(deduped);
+
+    // 3) 判断题
+    final childIsPanDuan = processPanDuan(
+      {...child, 'answer': childAnswer},
+      subOptions,
+    );
+    child['questionTypeId'] =
+        (_truthy(child['questionTypeId']) && child['questionTypeId'] != 0)
+            ? child['questionTypeId']
+            : questionData['questionTypeId'];
+    var childQuestionTypes = getQuestionTypeCode(
+      child['questionTypeId'],
+      child['isObjective'],
+      child['questionTypeCode'],
+    );
+    if (childIsPanDuan) {
+      childQuestionTypes = 'panduanti';
+    }
+
+    // 4) 组装子题（注意：...child 覆盖前面的显式字段，与 JS 展开顺序一致）
+    final computedOptions = subOptions.isNotEmpty
+        ? subOptions
+            .map((opt) => makeOption(opt['optionLabel']!, _latex(opt['options'])))
+            .toList()
+        : (child['options'] is List
+            ? (child['options'] as List)
+                .whereType<Map>()
+                .map((opt) => makeOption(
+                      '${opt['optionLabel'] ?? ''}',
+                      _latex(opt['options']),
+                    ))
+                .toList()
+            : <Map<String, String>>[]);
+
+    final subQuestionObj = <String, dynamic>{
+      'index': '${index + 1}.',
+      'stem': childStem,
+      'answer': childAnswer,
+      'analysis': childAnalysis,
+      'options': computedOptions,
+      'isSelect': childIsPanDuan || subOptions.isNotEmpty || _truthy(child['isSelect']),
+    };
+    subQuestionObj.addAll(child); // ...child
+    subQuestionObj['questionTypeId'] =
+        (_truthy(child['questionTypeId']) && child['questionTypeId'] != 0)
+            ? child['questionTypeId']
+            : questionData['questionTypeId'];
+    subQuestionObj['questionTypeName'] = _truthy(child['questionTypeName'])
+        ? child['questionTypeName']
+        : questionData['questionTypeName'];
+    subQuestionObj['questionTypes'] = childQuestionTypes;
+    subQuestionObj['raw'] = child;
+
+    if (childQuestionTypes == 'tiankongti') {
+      final childBkTagMetaList = parseBkTagMetaFromStem(
+        childStem,
+        '${child['correctAnswer'] ?? rawCorrectAnswer}',
+        child['userAnswer']?.toString(),
+        questionData['iSFilllankItemUpload'],
+      );
+      if (childBkTagMetaList.isNotEmpty) {
+        subQuestionObj['bkTagMetaList'] = childBkTagMetaList;
+      }
+    }
+
+    subQuestions.add(subQuestionObj);
+  }
+
+  // 清洗主干残留的子题块
+  final cleanupRegex = JRegExp(
+    '<([a-zA-Z][a-zA-Z0-9]*)(?=[^>]*class="[^"]*(?:hxdb-subquestion|hxdb-option-table-wrapper)[^"]*")[^>]*>',
+  );
+  while (true) {
+    final cleanupMatch = cleanupRegex.exec(newStem);
+    if (cleanupMatch == null) break;
+    final fullBlock = findFullElement(newStem, cleanupMatch);
+    newStem = newStem.replaceFirst(fullBlock, '');
+    cleanupRegex.reset();
+  }
+
+  var finalStem = newStem;
+
+  // 大题干自身的选项表（普通单选/多选）
+  final optionTableRegex = RegExp(
+    r'<([a-zA-Z][a-zA-Z0-9]*)[^>]*class="[^"]*hxdb-option-table(?!-wrapper)[^"]*"[^>]*>([\s\S]*?)</\1>',
+    caseSensitive: false,
+  );
+  final match = optionTableRegex.firstMatch(finalStem);
+  if (match != null) {
+    isSelect = true;
+    options.addAll(extractOptionsFromHtml(match.group(2) ?? ''));
+    finalStem = finalStem.replaceFirst(optionTableRegex, '');
+  }
+
+  var finalQuestionTypes = getQuestionTypeCode(
+    questionData['questionTypeId'],
+    questionData['isObjective'],
+    questionData['questionTypeCode'],
+  );
+
+  if (options.isEmpty &&
+      (finalQuestionTypes == 'danxuanti' || finalQuestionTypes == 'duoxuanti')) {
+    final plainOptions = extractPlainTextOptions(finalStem);
+    if (plainOptions.isNotEmpty) {
+      options.addAll(plainOptions);
+      isSelect = true;
+    }
+  }
+
+  var bkTagMetaList = <Map<String, dynamic>>[];
+  if (finalQuestionTypes == 'tiankongti') {
+    bkTagMetaList = parseBkTagMetaFromStem(
+      finalStem,
+      rawCorrectAnswer,
+      questionData['userAnswer']?.toString(),
+      questionData['iSFilllankItemUpload'],
+    );
+    if (bkTagMetaList.isEmpty) {
+      bkTagMetaList = [
+        {'index': 1, 'type': 0, 'dataInputType': 0, 'correctAnswer': rawCorrectAnswer}
+      ];
+      final userAnswerMap = parseUserAnswerMapFromJson(
+        questionData['userAnswer']?.toString(),
+        questionData['iSFilllankItemUpload'] == 1,
+      );
+      final fromUser = userAnswerMap[1];
+      if (fromUser != null) {
+        final isUpload = questionData['iSFilllankItemUpload'] == 1;
+        final myAnswer = fromUser['myAnswer'];
+        final hasImgArray = myAnswer is List &&
+            myAnswer.isNotEmpty &&
+            myAnswer.first is Map &&
+            (myAnswer.first as Map)['url'] != null;
+        if (isUpload || hasImgArray) {
+          if (myAnswer is List && myAnswer.isNotEmpty) {
+            bkTagMetaList[0]['myAnswer'] = myAnswer;
+          }
+        } else {
+          final my = myAnswer is String ? myAnswer.trim() : '';
+          if (my.isNotEmpty) bkTagMetaList[0]['myAnswer'] = my;
+        }
+        if (fromUser['answerStatus'] is int) {
+          bkTagMetaList[0]['answerStatus'] = fromUser['answerStatus'];
+        }
+      }
+    }
+  }
+
+  final renderedStem = fixImageStyles(_latex(finalStem));
+  final renderedAnalysis = fixImageStyles(_latex(analysis));
+  final optionSource = options.isNotEmpty
+      ? options
+      : ((questionData['options'] as List?)?.whereType<Map>().toList() ?? const []);
+  final renderedOptions = optionSource.map((rawOpt) {
+    final opt = Map<String, dynamic>.from(rawOpt);
+    return {
+      ...opt,
+      'options': fixImageStyles(_latex(opt['options'])),
+    };
+  }).toList();
+
+  final renderedSubQuestions = subQuestions.map((sub) {
+    final rendered = <String, dynamic>{...sub};
+    rendered['stem'] = fixImageStyles(_latex(sub['stem']));
+    rendered['analysis'] = fixImageStyles(_latex(sub['analysis']));
+    rendered['answerAnalysis'] = fixImageStyles(_latex(sub['answerAnalysis']));
+    final subOpts = (sub['options'] as List?) ?? const [];
+    rendered['options'] = subOpts.whereType<Map>().map((rawOpt) {
+      final opt = Map<String, dynamic>.from(rawOpt);
+      return {
+        ...opt,
+        'options': fixImageStyles(_latex(opt['options'])),
+      };
+    }).toList();
+    final bks = (sub['bkTagMetaList'] as List?) ?? const [];
+    rendered['bkTagMetaList'] =
+        bks.whereType<Map>().map((bk) => _renderBk(Map<String, dynamic>.from(bk))).toList();
+    return rendered;
+  }).toList();
+
+  final renderedBkTagMetaList = bkTagMetaList.map(_renderBk).toList();
+
+  return {
+    ...questionData,
+    'raw': questionData,
+    'stem': renderedStem,
+    'options': renderedOptions,
+    'isSelect': isSelect,
+    'questionTypes': finalQuestionTypes,
+    'childs': renderedSubQuestions,
+    'answer': rawAnswer,
+    'analysis': renderedAnalysis,
+    'subQuestions': renderedSubQuestions,
+    'bkTagMetaList': renderedBkTagMetaList.isNotEmpty
+        ? renderedBkTagMetaList
+        : (finalQuestionTypes == 'tiankongti'
+            ? [
+                {
+                  'index': 1,
+                  'type': 0,
+                  'dataInputType': 0,
+                  'correctAnswer': fixImageStyles(_latex(rawCorrectAnswer)),
+                }
+              ]
+            : const []),
+  };
+}

lib/core/utils/question/tag_color.dart

@@ -0,0 +1,92 @@
+/// ============================================================
+/// 题型标签渐变色（对标 Vue utils/tagQuestionTypeColor.js）
+/// getTagColor(tag) → 题型名对应渐变；找不到=默认单选题蓝
+/// ============================================================
+library;
+
+import 'package:flutter/material.dart';
+
+/// 题型渐变描述（起止色 + 角度近似：281.96deg≈右上→左下，126.17deg≈左上→右下）
+class TagGradient {
+  const TagGradient(this.begin, this.end, this.colors);
+
+  final Alignment begin;
+  final Alignment end;
+  final List<Color> colors;
+
+  Gradient get gradient => LinearGradient(
+        begin: begin,
+        end: end,
+        colors: colors,
+      );
+}
+
+const TagGradient _defaultTagGradient = TagGradient(
+  Alignment(-0.95, -0.2), // 281.96deg
+  Alignment(0.95, 0.2),
+  [Color(0xFF3D7DF5), Color(0xFF5A9EFF)],
+);
+
+const Map<String, TagGradient> _tagColorMap = {
+  '单选题': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFF3D7DF5), Color(0xFF5A9EFF)],
+  ),
+  '多选题': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFF3DB8F5), Color(0xFF5AC8FF)],
+  ),
+  '判断题': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFF3FC8A6), Color(0xFF89E9D1)],
+  ),
+  '填空题': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFF66D969), Color(0xFF93E594)],
+  ),
+  '完形填空': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFF81B84F), Color(0xFFB1E384)],
+  ),
+  '阅读理解': TagGradient(
+    Alignment(-0.44, -0.8), // 126.17deg
+    Alignment(0.44, 0.8),
+    [Color(0xFFFFC260), Color(0xFFFF9E45)],
+  ),
+  '听力理解': TagGradient(
+    Alignment(-0.44, -0.8),
+    Alignment(0.44, 0.8),
+    [Color(0xFFFFA052), Color(0xFFFF6F3A)],
+  ),
+  '7选5': TagGradient(
+    Alignment(-0.44, -0.8),
+    Alignment(0.44, 0.8),
+    [Color(0xFFFF7A41), Color(0xFFFE5837)],
+  ),
+  '解答题': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFFBA59EB), Color(0xFFCD8AEF)],
+  ),
+  '作文题': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFF8845E6), Color(0xFFA87BF5)],
+  ),
+  '问答题': TagGradient(
+    Alignment(-0.95, -0.2),
+    Alignment(0.95, 0.2),
+    [Color(0xFF6864E4), Color(0xFF8582E9)],
+  ),
+};
+
+/// Vue: getTagColor(tag)
+TagGradient getTagColor(String? tag) {
+  if (tag == null || tag.isEmpty) return _defaultTagGradient;
+  return _tagColorMap[tag] ?? _defaultTagGradient;
+}

lib/features/conquerPackage/beforeDuringClass/before_during_page.dart

@@ -0,0 +1,273 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart';
+import 'package:new_learn/core/api/conquerPackage/beforeDuringClass/model.dart';
+import 'package:new_learn/core/api/public_upload/model.dart';
+import 'package:new_learn/core/components/audio_player_card.dart';
+import 'package:new_learn/core/components/rich_text_content.dart';
+import 'package:new_learn/core/components/upload.dart';
+import 'package:new_learn/core/components/video_player_view.dart';
+
+/// ============================================================
+/// 【BeforeDuringPage】单页讲义内容组件
+///
+/// 对标 Vue pages/conquerPackage/beforeDuringClass/beforeDuringPage.vue
+///
+/// 一、功能：
+///   1. 显示讲义标题（name）
+///   2. 渲染正文富文本（content → RichTextContent）
+///   3. 渲染材料列表（materials）：
+///        materialType=1 视频 → VideoPlayerView
+///        materialType=2 音频 → AudioPlayerCard
+///        materialType=3 文本 → RichTextContent
+///   4. 底部 Upload 上传笔记组件（type=handouts）
+///   5. 对外暴露方法：
+///        uploadLectureNotes()  触发选图上传
+///        getImageList()        获取当前笔记列表
+///        getIsUploading()      是否上传中/选图中
+///        pauseMedia()          暂停页面内所有媒体
+///
+/// 二、尺寸换算（本工程统一）：
+///   Vue 的 N rpx → Flutter 的 (N/2).w/.h/.sp/.r
+///
+/// 三、与 Vue 的差异：
+///   - Flutter 端不维护 ref 数组来控制媒体暂停，
+///     滑出视口时 dispose 自动释放资源（PageView.builder 懒加载特性）。
+///   - pauseMedia 方法保留为对外接口，通过 GlobalKey 调用时
+///     遍历可见子树查找播放器组件来暂停（兼容手动触发场景）。
+/// ============================================================
+
+class BeforeDuringPage extends StatefulWidget {
+  const BeforeDuringPage({
+    super.key,
+    required this.data,
+    this.isCurrent = false,
+    this.onUploadChanged,
+  });
+
+  /// 讲义数据
+  final HandoutItem data;
+
+  /// 是否为当前可见页（只有当前页才真正初始化视频解码器，避免硬件解码器占满）
+  final bool isCurrent;
+
+  /// 笔记列表变化回调
+  final ValueChanged<List<UploadItem>>? onUploadChanged;
+
+  @override
+  State<BeforeDuringPage> createState() => BeforeDuringPageState();
+}
+
+class BeforeDuringPageState extends State<BeforeDuringPage>
+    with AutomaticKeepAliveClientMixin {
+  final GlobalKey<UploadState> _uploadKey = GlobalKey<UploadState>();
+
+  @override
+  bool get wantKeepAlive => true;
+
+  // ===================== 对外暴露方法 =====================
+
+  /// 触发上传笔记
+  void uploadLectureNotes() {
+    _uploadKey.currentState?.chooseImage();
+  }
+
+  /// 获取当前笔记列表
+  List<UploadItem> getImageList() {
+    return _uploadKey.currentState?.getImageList() ?? const [];
+  }
+
+  /// 是否上传中或选图中
+  bool getIsUploading() {
+    final state = _uploadKey.currentState;
+    if (state == null) return false;
+    return state.uploadingCount > 0 || state.choosing;
+  }
+
+  /// 暂停页面内所有媒体（视频/音频）
+  void pauseMedia() {
+    context.visitChildElements((element) {
+      _tryPauseMedia(element);
+    });
+  }
+
+  void _tryPauseMedia(Element element) {
+    // 通过 GlobalKey 形式找到 State 并调用 pause()
+    if (element is StatefulElement) {
+      final state = element.state;
+      if (state is VideoPlayerViewState) {
+        state.pause();
+        return;
+      }
+      if (state is AudioPlayerCardState) {
+        state.pause();
+        return;
+      }
+    }
+    element.visitChildren(_tryPauseMedia);
+  }
+
+  // ===================== Build =====================
+
+  @override
+  Widget build(BuildContext context) {
+    super.build(context);
+    return SingleChildScrollView(
+      padding: EdgeInsets.only(
+        left: 14.w,
+        right: 14.w,
+        top: 4.h,
+        bottom: 90.h,
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          // 标题
+          if (widget.data.name.isNotEmpty) _buildTitle(),
+          SizedBox(height: 10.h),
+          // 正文富文本
+          if (widget.data.content.isNotEmpty) _buildContent(),
+          SizedBox(height: 10.h),
+          // 材料列表
+          if (widget.data.materials.isNotEmpty) _buildMaterials(),
+          // 上传笔记
+          _buildUpload(),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildTitle() {
+    return Row(
+      crossAxisAlignment: CrossAxisAlignment.center,
+      children: [
+        Container(
+          width: 3.w,
+          height: 14.h,
+          margin: EdgeInsets.only(right: 7.5.w),
+          decoration: BoxDecoration(
+            color: const Color(0xFF3D7DF5),
+            borderRadius: BorderRadius.circular(10.r),
+          ),
+        ),
+        Expanded(
+          child: Text(
+            widget.data.name,
+            style: TextStyle(
+              fontSize: 16.sp,
+              fontWeight: FontWeight.bold,
+              color: const Color(0xFF1D2B47),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildContent() {
+    return Container(
+      width: double.infinity,
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(16.r),
+      ),
+      child: Padding(
+        padding: EdgeInsets.symmetric(horizontal: 14.w, vertical: 12.h),
+        child: RichTextContent(
+          html: widget.data.content,
+          renderMode: RenderMode.column,
+          textStyle: TextStyle(
+            fontSize: 14.sp,
+            color: const Color(0xFF495A7A),
+            height: 1.5,
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildMaterials() {
+    return Column(
+      children: [
+        for (final material in widget.data.materials)
+          Padding(
+            padding: EdgeInsets.only(bottom: 10.h),
+            child: _buildMaterialItem(material),
+          ),
+      ],
+    );
+  }
+
+  Widget _buildMaterialItem(HandoutMaterial material) {
+    switch (material.materialType) {
+      case HandoutMaterialType.video:
+        // 只有当前页才真正初始化视频解码器，避免硬件解码器占满导致 ExoPlaybackException
+        if (!widget.isCurrent) {
+          return _buildVideoPlaceholder(material);
+        }
+        return VideoPlayerView(
+          url: material.materialContent,
+          title: '讲义视频',
+          autoPlay: false,
+        );
+      case HandoutMaterialType.audio:
+        return AudioPlayerCard(
+          url: material.materialContent,
+          title: '讲义音频',
+        );
+      case HandoutMaterialType.text:
+        return Container(
+          width: double.infinity,
+          decoration: BoxDecoration(
+            color: Colors.white,
+            borderRadius: BorderRadius.circular(16.r),
+          ),
+          child: Padding(
+            padding: EdgeInsets.symmetric(horizontal: 14.w, vertical: 12.h),
+            child: RichTextContent(
+              html: material.materialContent,
+              renderMode: RenderMode.column,
+              textStyle: TextStyle(
+                fontSize: 14.sp,
+                color: const Color(0xFF495A7A),
+                height: 1.5,
+              ),
+            ),
+          ),
+        );
+      case HandoutMaterialType.unknown:
+        return const SizedBox.shrink();
+    }
+  }
+
+  /// 视频占位图（非当前页展示，不占用硬件解码器）
+  Widget _buildVideoPlaceholder(HandoutMaterial material) {
+    return ClipRRect(
+      borderRadius: BorderRadius.circular(8),
+      child: AspectRatio(
+        aspectRatio: 16 / 9,
+        child: Container(
+          color: Colors.black,
+          alignment: Alignment.center,
+          child: Icon(
+            Icons.play_circle_outline,
+            size: 48.w,
+            color: Colors.white54,
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildUpload() {
+    return Upload(
+      key: _uploadKey,
+      type: UploadType.handouts,
+      ids: widget.data.id,
+      initialImageList: widget.data.notes
+          .map((note) => UploadItem.fromNoteImage(note))
+          .toList(),
+      onChanged: widget.onUploadChanged,
+    );
+  }
+}

lib/features/conquerPackage/beforeDuringClass/index.dart

@@ -1,18 +1,887 @@
+import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/scheduler.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:go_router/go_router.dart';
+import 'package:new_learn/core/api/conquerPackage/beforeDuringClass/api.dart';
+import 'package:new_learn/core/api/conquerPackage/beforeDuringClass/model.dart';
+import 'package:new_learn/core/api/public_upload/model.dart';
+import 'package:new_learn/core/components/center_toast.dart';
+import 'package:new_learn/core/components/confirm_box.dart';
+import 'package:new_learn/core/components/upload.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/features/conquerPackage/beforeDuringClass/before_during_page.dart';
+
+// ===================== 自定义滑动物理 =====================
+
+/// 单向滑动控制：
+/// - 向右滑（上一页，index 减小）始终允许
+/// - 向左滑（下一页，index 增大）需要满足时长 + 笔记条件
+/// ============================================================
+/// 【BeforeDuringClassPage】课前课中（讲义学习）页面
+/// 对标 Vue pages/conquerPackage/beforeDuringClass/beforeDuringClass.vue
+///
+/// 一、页面结构：
+///   ┌──────────────────────────────────┐
+///   │  HeaderBac 背景图 + NavBar        │
+///   │  ┌────────────────────────────┐  │
+///   │  │ 计时图标+时间  进度条 1/10 │  │
+///   │  └────────────────────────────┘  │
+///   ├──────────────────────────────────┤
+///   │                                  │
+///   │   PageView.builder  （懒加载）   │
+///   │   每页一个 BeforeDuringPage      │
+///   │   （仅构建视口 ±1 页，滑出回收） │
+///   │                                  │
+///   ├──────────────────────────────────┤
+///   │  底部操作栏：上传笔记 / 上一步 / │
+///   │  下一步（最后一页→完成学习）     │
+///   └──────────────────────────────────┘
+///
+/// 二、核心功能：
+///   1. PageView.builder 懒加载：physics 禁止滑动（按钮翻页），
+///      allowImplicitScrolling=true 预构建相邻页
+///   2. 学习计时：Ticker 驱动，onPageChange 结算时长
+///   3. 建议时长倒计时：当前页 planStudyTimeSecond 剩余时间
+///   4. 笔记必传校验：isUploadNotes 页必须有笔记才能进下一页
+///   5. 时长不足提示弹窗（可跳过）
+///   6. 笔记必传提示弹窗
+///
+/// 三、尺寸换算（本工程统一）：
+///   Vue 的 N rpx → Flutter 的 (N/2).w/.h/.sp/.r
+///
+/// 四、路由参数（通过 extra 传入）：
+///   - courseId  课程 id
+///   - packId    攻克包 id
+///   - recordId  学习记录 id
+///   - type      edit / view（默认 edit）
+///   - isWrong   是否错题模式（默认 false）
+/// ============================================================
+
+/// 页面模式
+enum BeforeDuringMode { edit, view }
+
+class BeforeDuringClassPage extends StatefulWidget {
+  const BeforeDuringClassPage({super.key, this.extra});
+
+  final Map<String, dynamic>? extra;
+
+  @override
+  State<BeforeDuringClassPage> createState() => _BeforeDuringClassPageState();
+}
+
+class _BeforeDuringClassPageState extends State<BeforeDuringClassPage>
+    with TickerProviderStateMixin {
+  // ========== 颜色常量 ==========
+  static const Color _bgColor = Color(0xFFF5F8FA);
+  static const Color _titleColor = Color(0xFF1D2B47);
+  static const Color _subtitleColor = Color(0xFF99A4BA);
+  static const Color _primary = Color(0xFF3D7DF5);
+
+  // ========== Controller ==========
+  final PageController _pageController = PageController();
+  final Map<int, GlobalKey<BeforeDuringPageState>> _pageKeys = {};
+
+  // ========== 路由参数 ==========
+  late BeforeDuringMode _mode;
+  late String _courseId;
+  late String _packId;
+  late String _recordId;
+  bool _isWrong = false;
+
+  // ========== 数据 ==========
+  List<HandoutItem> _pageList = [];
+  int _currentIndex = 0;
+  bool _loading = true;
+
+  // ========== 全局学习计时 ==========
+  late final Ticker _timingTicker;
+  Duration _timingOffset = Duration.zero;
+  Duration _timingElapsed = Duration.zero;
+  bool _timingRunning = false;
+
+  // ========== 当前页倒计时 ==========
+  late final Ticker _countdownTicker;
+  Duration _countdownRemaining = Duration.zero;
+  int _lastCountdownTickSecond = 0;
+  DateTime _pageStartTime = DateTime.now();
+  bool _isNavigatingAway = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _parseExtra();
+
+    // 全局学习计时
+    _timingTicker = createTicker((elapsed) {
+      if (_timingRunning) {
+        _timingElapsed = elapsed + _timingOffset;
+        setState(() {});
+      }
+    });
+    if (_mode == BeforeDuringMode.edit) {
+      _timingTicker.start();
+      _timingRunning = true;
+    }
+
+    // 单页倒计时（基于真实流逝时间，每秒更新 UI）
+    _countdownTicker = createTicker((elapsed) {
+      final elapsedSeconds = elapsed.inSeconds;
+      if (_lastCountdownTickSecond == elapsedSeconds) return;
+      _lastCountdownTickSecond = elapsedSeconds;
+
+      if (_countdownRemaining.inSeconds > 0) {
+        _countdownRemaining -= const Duration(seconds: 1);
+        setState(() {});
+      } else {
+        _countdownTicker.stop();
+        _markCurrentPagePlanTimeFinished();
+      }
+    });
+
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      _loadData();
+    });
+  }
+
+  @override
+  void dispose() {
+    _timingTicker.dispose();
+    _countdownTicker.dispose();
+    _pageController.dispose();
+    super.dispose();
+  }
+
+  // ===================== 初始化 =====================
+
+  void _parseExtra() {
+    final extra = widget.extra ?? const <String, dynamic>{};
+    _courseId = (extra['courseId']?.toString()) ?? '';
+    _packId = (extra['packId']?.toString()) ?? '';
+    _recordId = (extra['recordId']?.toString()) ?? '';
+    _isWrong = extra['isWrong'] == true || extra['isWrong'] == 'true';
+    final typeStr = (extra['type'] as String?) ?? 'edit';
+    _mode = typeStr == 'view'
+        ? BeforeDuringMode.view
+        : BeforeDuringMode.edit;
+  }
+
+  Future<void> _loadData() async {
+    setState(() => _loading = true);
+    try {
+      final HandoutListResponse resp;
+      if (_mode == BeforeDuringMode.view) {
+        resp = await BeforeDuringClassApi.instance.getSubmitReport(_recordId);
+      } else {
+        resp = await BeforeDuringClassApi.instance
+            .getListByRecordHandout(_recordId);
+      }
+      _pageList = List<HandoutItem>.from(resp.items);
+
+      // _pageList = List<HandoutItem>.from(resp.items).map((item) {
+      //   return item.copyWith(
+      //     content: item.content +
+      //         '<div class="hxdb-stem" name="hxdbStem"><div class="hxdb-stem-content" name="hxdbStem-content" data-hxdb-type="stem"><p>某兴趣小组利用 Pt1000 铂电阻测量温度。实验中没有电压表，现将电流表 <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/878136bf67384b3ab5998cc6fc15bc32_0_398c9b77.svg" width="25" height="17" style="width: 25px; height: 17px; vertical-align: middle;"> 与已知电阻 <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/5a406b64eafd47f3a8686bba4741c29a_1_b71473bc.svg" width="26" height="17" style="width: 26px; height: 17px; vertical-align: middle;"> 串联组成一条支路，将电流表 <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/167759d79f984e45a0d48c31a3c6566e_2_fb3fd646.svg" width="26" height="17" style="width: 26px; height: 17px; vertical-align: middle;"> 与待测铂电阻 <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/f769c572150d4ce782daa8935a9ceb83_3_b1a4eeff.svg" width="23" height="16" style="width: 23px; height: 16px; vertical-align: middle;"> 串联组成另一条支路，两支路并联。忽略两电流表内阻，<img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/d37447ecfe6440d1bd97e900cacf3b64_4_398c9b77.svg" width="25" height="17" style="width: 25px; height: 17px; vertical-align: middle;">、<img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/8a5d7731a3b744d193a514eeb253ca92_5_fb3fd646.svg" width="26" height="17" style="width: 26px; height: 17px; vertical-align: middle;"> 的示数分别为 <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/9265c18c28934f61bc64bef449f1e641_6_6c3f86e2.svg" width="19" height="16" style="width: 19px; height: 16px; vertical-align: middle;">、<img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/b0fdd5ecc5a0477eb7a245d2c0fcf041_7_93189365.svg" width="20" height="17" style="width: 20px; height: 17px; vertical-align: middle;">。铂电阻阻值 <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/340415fadcf24d87a7ed79eb81a64c30_8_b1a4eeff.svg" width="23" height="16" style="width: 23px; height: 16px; vertical-align: middle;"> 的表达式为</p><p><br><img src="https://hx.cnzhyx.cn/K12/Question/png/2026-08-24/85cb7f0925a841c6b894ce351678be4f.png" class="preview-content" style="max-width:100%;"><br></p></div><table class="hxdb-option-table" name="hxdbOptionTable" style="width: 100%; table-layout: fixed; border-collapse: collapse;"><tbody><tr class="hxdb-option-table-tr firstRow" name="hxdbOptionTableTr"><td class="hxdb-option-table-td" name="hxdbOptionTableTd" valign="top" style="word-break: break-all;"><span class="hxdb-option-label">A.</span>  <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/3094744dbf1644bb80aceae639e61c6a_9_7f8b9fc5.svg" width="92" height="40" style="width: 92px; height: 40px; vertical-align: middle;"></td></tr><tr class="hxdb-option-table-tr firstRow" name="hxdbOptionTableTr"><td class="hxdb-option-table-td" name="hxdbOptionTableTd" valign="top" style="word-break: break-all;"><span class="hxdb-option-label">B.</span>  <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/96acf8a47eda4cdf81ef01707a28abff_10_fa759021.svg" width="92" height="40" style="width: 92px; height: 40px; vertical-align: middle;"></td></tr><tr class="hxdb-option-table-tr firstRow" name="hxdbOptionTableTr"><td class="hxdb-option-table-td" name="hxdbOptionTableTd" valign="top" style="word-break: break-all;"><span class="hxdb-option-label">C.</span>  <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/aecc386b27d341e393bbc45ac86e9e20_11_7cd89d59.svg" width="144" height="42" style="width: 144px; height: 42px; vertical-align: middle;"></td></tr><tr class="hxdb-option-table-tr firstRow" name="hxdbOptionTableTr"><td class="hxdb-option-table-td" name="hxdbOptionTableTd" valign="top" style="word-break: break-all;"><span class="hxdb-option-label">D.</span>  <img src="https://hx.cnzhyx.cn/K12LatexToSvg/ProductionV2/LatexSvg/2026-08-27/6c8a4a6004f04529b9d6b48b4d7560c3_12_1f4bbe90.svg" width="144" height="42" style="width: 144px; height: 42px; vertical-align: middle;"></td></tr></tbody></table></div>',
+      //   );
+      // }).toList();
+      // _pageList = List<HandoutItem>.from(resp.items).map((item) {
+      //   return item.copyWith(
+      //     isUploadNotes: true,
+      //     isFinishPlanTime: false,
+      //     planStudyTimeSecond: 900,
+      //     studyTimeSecond: 0,
+      //   );
+      // }).toList();
+      // 测试：复制一份追加到数组末尾（翻倍页数）
+      // _pageList.addAll(_pageList.map((item) => item.copyWith()).toList());
+
+      // 汇总已有学习时长
+      if (_mode == BeforeDuringMode.edit) {
+        final totalSeconds = _pageList.fold<int>(
+          0,
+          (acc, item) => acc + item.studyTimeSecond,
+        );
+        _timingOffset = Duration(seconds: totalSeconds);
+      }
+
+      if (_pageList.isEmpty) {
+        _goTransitionPage();
+        return;
+      }
+
+      _pageStartTime = DateTime.now();
+      _startCountdownForCurrentPage();
+    } catch (e) {
+      debugPrint('[BeforeDuringClass] 加载失败: $e');
+      if (mounted) {
+        CenterToast.show(context, '加载失败，请重试');
+      }
+    } finally {
+      if (mounted) setState(() => _loading = false);
+    }
+  }
+
+  // ===================== 计时工具 =====================
+
+  String get _timingText => _formatDuration(_timingElapsed);
+
+  String _formatDuration(Duration d) {
+    final m = d.inMinutes.remainder(60).toString().padLeft(2, '0');
+    final s = d.inSeconds.remainder(60).toString().padLeft(2, '0');
+    if (d.inHours > 0) {
+      final h = d.inHours.toString().padLeft(2, '0');
+      return '$h:$m:$s';
+    }
+    return '$m:$s';
+  }
+
+  // ===================== 倒计时 =====================
+
+  void _startCountdownForCurrentPage() {
+    if (_mode == BeforeDuringMode.view) return;
+    final page = _currentPage;
+    if (page == null) return;
+    if (page.planStudyTimeSecond <= 0 || page.isFinishPlanTime) {
+      _countdownRemaining = Duration.zero;
+      return;
+    }
+    final remain = page.planStudyRemainTimeSecond > 0
+        ? page.planStudyRemainTimeSecond
+        : page.planStudyTimeSecond - page.studyTimeSecond;
+    if (remain <= 0) {
+      _markCurrentPagePlanTimeFinished();
+      _countdownRemaining = Duration.zero;
+      return;
+    }
+    _countdownRemaining = Duration(seconds: remain);
+    _lastCountdownTickSecond = 0;
+    if (!_countdownTicker.isActive) {
+      _countdownTicker.start();
+    }
+  }
+
+  void _markCurrentPagePlanTimeFinished() {
+    if (_currentIndex >= _pageList.length) return;
+    final page = _pageList[_currentIndex];
+    if (page.isFinishPlanTime) return;
+    _pageList[_currentIndex] = page.copyWith(
+      isFinishPlanTime: true,
+      planStudyRemainTimeSecond: 0,
+    );
+    setState(() {});
+  }
+
+  void _saveCurrentPageRemainTime() {
+    if (_mode == BeforeDuringMode.view) return;
+    if (_currentIndex >= _pageList.length) return;
+    final page = _pageList[_currentIndex];
+    if (page.planStudyTimeSecond <= 0 || page.isFinishPlanTime) return;
+    final remain = _countdownRemaining.inSeconds;
+    if (remain > 0 && remain <= page.planStudyTimeSecond) {
+      _pageList[_currentIndex] =
+          page.copyWith(planStudyRemainTimeSecond: remain);
+    }
+  }
+
+  String get _countdownText {
+    final d = _countdownRemaining;
+    final m = d.inMinutes.remainder(60).toString().padLeft(2, '0');
+    final s = d.inSeconds.remainder(60).toString().padLeft(2, '0');
+    return '$m:$s';
+  }
+
+  // ===================== 计算属性 =====================
+
+  int get _totalCount => _pageList.length;
+  int get _currentLabel => _totalCount == 0 ? 0 : _currentIndex + 1;
+  double get _percentage => _totalCount == 0 ? 0 : _currentLabel / _totalCount;
+
+  HandoutItem? get _currentPage =>
+      _currentIndex < _pageList.length ? _pageList[_currentIndex] : null;
+
+  String get _title {
+    if (_mode == BeforeDuringMode.view) {
+      return _isWrong ? '错题解析' : '全部解析';
+    }
+    return _currentPage?.title ?? '';
+  }
+
+  /// 最低时长是否未完成
+  bool get _isTimeDisabled {
+    if (_mode == BeforeDuringMode.view) return false;
+    final p = _currentPage;
+    if (p == null) return false;
+    if (p.planStudyTimeSecond > 0 && !p.isFinishPlanTime) return true;
+    return false;
+  }
+
+  /// 是否必须上传笔记但还没传
+  bool get _isNoteDisabled {
+    if (_mode == BeforeDuringMode.view) return false;
+    final p = _currentPage;
+    if (p == null) return false;
+    if (p.isUploadNotes && p.notes.isEmpty) return true;
+    return false;
+  }
+
+  /// 滑动到下一页是否被拦截（时长不足 或 笔记必传未传，都不能滑）
+  bool get _isSwipeNextBlocked {
+    if (_mode == BeforeDuringMode.view) return false;
+    return _isTimeDisabled || _isNoteDisabled;
+  }
+
+  /// 倒计时气泡是否显示
+  bool get _showTimeBubble {
+    if (_mode == BeforeDuringMode.view) return false;
+    final p = _currentPage;
+    if (p == null) return false;
+    if (p.planStudyTimeSecond <= 0 || p.isFinishPlanTime) return false;
+    return _countdownRemaining.inSeconds > 0;
+  }
+
+  // ===================== 页面切换 =====================
+
+  void _onPageChanged(int index) {
+    if (index == _currentIndex) return;
+
+    _saveCurrentPageRemainTime();
+    _pausePageMedia(_currentIndex);
+    _renewHandoutTimeForIndex(_currentIndex);
+
+    setState(() {
+      _currentIndex = index;
+    });
+
+    _pageStartTime = DateTime.now();
+    _startCountdownForCurrentPage();
+  }
+
+  /// 手势滑动翻页（自己控制，不受 PageView physics 影响）
+  /// - 向右滑（primaryVelocity > 0）→ 上一页，始终允许
+  /// - 向左滑（primaryVelocity < 0）→ 下一页，需满足时长 + 笔记条件
+  void _onHorizontalDragEnd(DragEndDetails details) {
+    final velocity = details.primaryVelocity ?? 0;
+    const kMinVelocity = 200.0; // 最小滑动速度阈值
+
+    if (velocity.abs() < kMinVelocity) return; // 滑动速度不够，忽略
+
+    if (velocity > 0) {
+      // 向右滑 → 上一页
+      if (_currentIndex > 0) {
+        _pageController.animateToPage(
+          _currentIndex - 1,
+          duration: const Duration(milliseconds: 300),
+          curve: Curves.easeOut,
+        );
+      }
+    } else {
+      // 向左滑 → 下一页（时长不足或笔记必传未传，都不能滑）
+      if (_currentIndex < _pageList.length - 1 && !_isSwipeNextBlocked) {
+        _pageController.animateToPage(
+          _currentIndex + 1,
+          duration: const Duration(milliseconds: 300),
+          curve: Curves.easeOut,
+        );
+      }
+    }
+  }
+
+  Future<void> _renewHandoutTimeForIndex(int index) async {
+    if (_mode == BeforeDuringMode.view) return;
+    if (index >= _pageList.length) return;
+    final page = _pageList[index];
+    if (page.id.isEmpty) return;
+    try {
+      await BeforeDuringClassApi.instance.renewHandoutTime(
+        id: page.id,
+        courseId: _courseId,
+        startTime: _pageStartTime.toIso8601String(),
+        endTime: DateTime.now().toIso8601String(),
+      );
+    } catch (e) {
+      debugPrint('[BeforeDuringClass] RenewTime 失败: $e');
+    }
+  }
+
+  void _pausePageMedia(int index) {
+    _pageKeys[index]?.currentState?.pauseMedia();
+  }
+
+  // ===================== 底部按钮操作 =====================
+
+  void _onUploadNotes() {
+    _pageKeys[_currentIndex]?.currentState?.uploadLectureNotes();
+  }
+
+  Future<void> _onPrevious() async {
+    if (_currentIndex == 0) return;
+    _saveCurrentPageRemainTime();
+    _pausePageMedia(_currentIndex);
+    _pageController.previousPage(
+      duration: const Duration(milliseconds: 300),
+      curve: Curves.easeInOut,
+    );
+  }
+
+  Future<void> _onNext() async {
+    // 上传中禁止跳转
+    final currentState = _pageKeys[_currentIndex]?.currentState;
+    if (currentState != null && currentState.getIsUploading()) {
+      CenterToast.show(context, '图片上传中，请稍后再试');
+      return;
+    }
+
+    // 时长不足（可跳过）
+    if (_isTimeDisabled) {
+      final timeText = _formatDuration(
+        Duration(seconds: _currentPage?.planStudyTimeSecond ?? 0),
+      );
+      final ok = await showConfirmBox(
+        context,
+        title: '建议学习时长 $timeText',
+        content: '仓促速学掌握不牢，之后还要重新复习\n本次攻克成功，学习时长会逐步减少',
+        cancelText: '继续学习',
+        confirmText: '跳过',
+      );
+      if (ok != true) return;
+    }
+
+    // 笔记必传（不可跳过，放在时长之后，点跳过时长后仍会检查）
+    if (_isNoteDisabled) {
+      final ok = await showConfirmBox(
+        context,
+        title: '该讲义必须上传笔记',
+        content: '上传笔记，有助于更好记录课程内容，提升学习效率',
+        cancelText: '取消',
+        confirmText: '上传笔记',
+      );
+      if (ok == true) {
+        _onUploadNotes();
+      }
+      return;
+    }
+
+    // 最后一页 → 完成学习
+    if (_currentIndex == _pageList.length - 1) {
+      if (_mode == BeforeDuringMode.edit) {
+        await _finishAll();
+      }
+      return;
+    }
+
+    _saveCurrentPageRemainTime();
+    _pausePageMedia(_currentIndex);
+    _pageController.nextPage(
+      duration: const Duration(milliseconds: 300),
+      curve: Curves.easeInOut,
+    );
+  }
+
+  Future<void> _finishAll() async {
+    _isNavigatingAway = true;
+    _saveCurrentPageRemainTime();
+    _pausePageMedia(_currentIndex);
+    await _renewHandoutTimeForIndex(_currentIndex);
+    if (mounted) {
+      _goTransitionPage();
+    }
+  }
+
+  void _goTransitionPage() {
+    // 判断下一个状态：课前(1)→课中(2)→课后(3)
+    // 此处简化：完成学习后默认进入课后练习过渡页（status=3）
+    context.push(
+      '/conquerPackage/transitionPage',
+      extra: {
+        'courseId': _courseId,
+        'packId': _packId,
+        'recordId': _recordId,
+        'status': '3',
+      },
+    );
+  }
+
+  // ===================== 笔记变化 =====================
+
+  void _onUploadChanged(List<UploadItem> list) {
+    if (_currentIndex >= _pageList.length) return;
+    final page = _pageList[_currentIndex];
+    _pageList[_currentIndex] = page.copyWith(
+      notes: list
+          .where((item) => item.id != null)
+          .map((item) => NoteImage(
+                id: item.id,
+                url: item.url,
+                thumbnailUrl: item.thumbnailUrl,
+              ))
+          .toList(),
+    );
+    setState(() {});
+  }
+
+  // ===================== 返回 =====================
+
+  Future<bool> _onWillPop() async {
+    if (_mode == BeforeDuringMode.edit && !_isNavigatingAway) {
+      _saveCurrentPageRemainTime();
+      await _renewHandoutTimeForIndex(_currentIndex);
+    }
+    return true;
+  }
+
+  // ===================== Build =====================
 
-class CaptureListPage extends StatelessWidget {
-  const CaptureListPage({super.key});
   @override
   Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(title: const Text('Align 对齐布局 Demo11111')),
-      // ---------- 下方即为核心代码，可直接复制到 Scaffold body ----------
-      body: Container(
-        width: 300.w,
-        height: 300.h,
-        color: Colors.grey[300],
+    return PopScope(
+      canPop: true,
+      onPopInvoked: (didPop) async {
+        if (didPop) return;
+        await _onWillPop();
+      },
+      child: Scaffold(
+        backgroundColor: _bgColor,
+        body: _loading
+            ? const Center(child: CircularProgressIndicator())
+            : _pageList.isEmpty
+                ? const Center(child: Text('暂无讲义'))
+                : Stack(
+                    children: [
+                      // 顶部背景图
+                      Positioned(
+                        top: 0,
+                        left: 0,
+                        right: 0,
+                        child: CachedNetworkImage(
+                          imageUrl: ImgUrl.build(
+                            '/StaticResource/2026-05-26/my-header-bg-default1779775984375.png',
+                          ),
+                          fit: BoxFit.fitWidth,
+                          width: double.infinity,
+                          placeholder: (_, __) => const SizedBox.shrink(),
+                          errorWidget: (_, __, ___) =>
+                              const SizedBox.shrink(),
+                        ),
+                      ),
+                      SafeArea(
+                        child: Column(
+                          children: [
+                            // 导航栏
+                            _buildNavBar(),
+                            // 计时 + 进度
+                            _buildHeader(),
+                            // 主体（外层手势识别，自己控制左右滑动）
+                            Expanded(
+                              child: GestureDetector(
+                                onHorizontalDragEnd: _onHorizontalDragEnd,
+                                behavior: HitTestBehavior.translucent,
+                                child: PageView.builder(
+                                  controller: _pageController,
+                                  itemCount: _pageList.length,
+                                  onPageChanged: _onPageChanged,
+                                  physics: const NeverScrollableScrollPhysics(),
+                                  allowImplicitScrolling: true,
+                                  itemBuilder: (context, index) {
+                                    _pageKeys[index] ??=
+                                        GlobalKey<BeforeDuringPageState>();
+                                    return BeforeDuringPage(
+                                      key: _pageKeys[index],
+                                      data: _pageList[index],
+                                      isCurrent: index == _currentIndex,
+                                      onUploadChanged: _onUploadChanged,
+                                    );
+                                  },
+                                ),
+                              ),
+                            ),
+                            // 底部操作栏
+                            _buildFooter(),
+                          ],
+                        ),
+                      ),
+                    ],
+                  ),
       ),
     );
   }
+
+  // ===================== NavBar =====================
+
+  Widget _buildNavBar() {
+    return SizedBox(
+      height: 44.h,
+      child: Stack(
+        children: [
+          Center(
+            child: Text(
+              _title,
+              style: const TextStyle(
+                color: Color.fromRGBO(0, 0, 0, 0.8),
+                fontSize: 18,
+                fontWeight: FontWeight.w600,
+              ),
+            ),
+          ),
+          Positioned(
+            left: 16.w,
+            top: 0,
+            bottom: 0,
+            child: IconButton(
+              icon: const Icon(Icons.arrow_back_ios,
+                  color: Color.fromRGBO(0, 0, 0, 0.8), size: 20),
+              onPressed: () async {
+                await _onWillPop();
+                if (mounted) Navigator.of(context).maybePop();
+              },
+              padding: EdgeInsets.zero,
+              constraints: const BoxConstraints(),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  // ===================== Header（计时 + 进度） =====================
+
+  Widget _buildHeader() {
+    return Padding(
+      padding: EdgeInsets.fromLTRB(14.w, 4.h, 14.w, 10.h),
+      child: Row(
+        children: [
+          // 左侧：计时
+          _buildTiming(),
+          const Spacer(),
+          // 右侧：进度条 + 页码
+          _buildProgress(),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildTiming() {
+    if (_mode == BeforeDuringMode.view) {
+      return const SizedBox.shrink();
+    }
+    return Container(
+      padding: EdgeInsets.symmetric(horizontal: 10.w, vertical: 6.h),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(30.r),
+      ),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          CachedNetworkImage(
+            imageUrl: ImgUrl.build('/StaticResource/2026-04-02/timing.png'),
+            width: 18.w,
+            height: 18.w,
+            errorWidget: (_, __, ___) =>
+                Icon(Icons.timer, size: 18.w, color: _primary),
+          ),
+          SizedBox(width: 5.w),
+          Text(
+            _timingText,
+            style: TextStyle(
+              fontSize: 13.sp,
+              color: _titleColor,
+              fontWeight: FontWeight.w500,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildProgress() {
+    return Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        SizedBox(
+          width: 150.w,
+          child: ClipRRect(
+            borderRadius: BorderRadius.circular(4.r),
+            child: LinearProgressIndicator(
+              value: _percentage,
+              minHeight: 4,
+              backgroundColor: Colors.white,
+              valueColor: const AlwaysStoppedAnimation(_primary),
+            ),
+          ),
+        ),
+        SizedBox(width: 10.w),
+        RichText(
+          text: TextSpan(
+            children: [
+              TextSpan(
+                text: '$_currentLabel',
+                style: TextStyle(
+                  fontSize: 15.sp,
+                  fontWeight: FontWeight.w600,
+                  color: _titleColor,
+                ),
+              ),
+              TextSpan(
+                text: '/$_totalCount',
+                style: TextStyle(
+                  fontSize: 12.sp,
+                  color: _subtitleColor,
+                ),
+              ),
+            ],
+          ),
+        ),
+      ],
+    );
+  }
+
+  // ===================== Footer =====================
+
+  Widget _buildFooter() {
+    return SafeArea(
+      top: false,
+      child: Container(
+        padding: EdgeInsets.symmetric(horizontal: 14.w, vertical: 10.h),
+        decoration: BoxDecoration(
+          color: Colors.white,
+          border: Border(
+            top: BorderSide(color: const Color(0xFFEEEEEE), width: 1.w),
+          ),
+        ),
+        child: Row(
+          children: [
+            // 上传笔记按钮
+            if (_mode == BeforeDuringMode.edit) _buildUploadNoteButton(),
+            if (_mode == BeforeDuringMode.edit) SizedBox(width: 10.w),
+            // 上一步
+            Expanded(
+              child: _buildStepButton(
+                text: '上一步',
+                disabled: _currentIndex == 0,
+                onTap: _onPrevious,
+                isPrimary: false,
+              ),
+            ),
+            SizedBox(width: 10.w),
+            // 下一步
+            Expanded(
+              child: _buildNextButton(),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildUploadNoteButton() {
+    return GestureDetector(
+      onTap: _onUploadNotes,
+      behavior: HitTestBehavior.opaque,
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          CachedNetworkImage(
+            imageUrl: ImgUrl.build('/StaticResource/2026-04-02/note.png'),
+            width: 22.w,
+            height: 22.w,
+            errorWidget: (_, __, ___) => Icon(
+              Icons.note_add_outlined,
+              size: 22.w,
+              color: _primary,
+            ),
+          ),
+          SizedBox(height: 3.h),
+          Text(
+            '上传笔记',
+            style: TextStyle(
+              fontSize: 10.sp,
+              color: _titleColor,
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildStepButton({
+    required String text,
+    required bool disabled,
+    required VoidCallback onTap,
+    required bool isPrimary,
+  }) {
+    final bgColor = isPrimary ? _primary : const Color(0xFFF0F2F5);
+    final textColor = isPrimary ? Colors.white : _titleColor;
+
+    return Opacity(
+      opacity: disabled ? 0.5 : 1.0,
+      child: FilledButton(
+        onPressed: disabled ? null : onTap,
+        style: FilledButton.styleFrom(
+          backgroundColor: bgColor,
+          foregroundColor: textColor,
+          disabledBackgroundColor: bgColor,
+          disabledForegroundColor: textColor,
+          minimumSize: Size.fromHeight(47.h),
+          padding: EdgeInsets.zero,
+          shape: RoundedRectangleBorder(
+            borderRadius: BorderRadius.circular(20.r),
+          ),
+          textStyle: TextStyle(
+            fontSize: 13.sp,
+            fontWeight: FontWeight.w500,
+          ),
+        ),
+        child: Text(text),
+      ),
+    );
+  }
+
+  Widget _buildNextButton() {
+    final isLast = _currentIndex == _pageList.length - 1;
+    final text = isLast && _mode == BeforeDuringMode.edit
+        ? '完成学习'
+        : '下一步';
+    // 只有 view 模式最后一页才禁用；edit 模式永远可点（点了弹引导弹窗）
+    final disabled = _mode == BeforeDuringMode.view && isLast;
+
+    return Stack(
+      clipBehavior: Clip.none,
+      children: [
+        _buildStepButton(
+          text: text,
+          disabled: disabled,
+          onTap: _onNext,
+          isPrimary: true,
+        ),
+        if (_showTimeBubble)
+          Positioned(
+            right: 4.w,
+            top: -12.h,
+            child: Container(
+              height: 20.h,
+              padding: EdgeInsets.fromLTRB(8.w, 0, 8.w, 3.h),
+              alignment: Alignment.center,
+              decoration: BoxDecoration(
+                image: DecorationImage(
+                  image: NetworkImage(
+                    ImgUrl.build('/StaticResource/2026-04-17/bubble.png'),
+                  ),
+                  fit: BoxFit.fill,
+                ),
+              ),
+              child: Transform.translate(
+                offset: Offset(0, -1.h),
+                child: Text(
+                  _countdownText,
+                  style: TextStyle(
+                    color: Colors.white,
+                    fontSize: 11.sp,
+                  ),
+                ),
+              ),
+            ),
+          ),
+      ],
+    );
+  }
 }

lib/features/conquerPackage/captureList/index.dart

@@ -1,10 +1,12 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:go_router/go_router.dart';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:new_learn/core/api/conquerPackage/captureList/api.dart';
 import 'package:new_learn/core/api/conquerPackage/captureList/model.dart';
 import 'package:new_learn/core/components/common_paged_list.dart';
 import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_timing.dart';
 
 /// ============================================================
 /// 【CaptureListPage】攻克列表页 —— 对标 Vue pages/conquerPackage/captureList/index.vue
@@ -220,7 +222,7 @@ class _CaptureListPageState extends State<CaptureListPage> {
       // 跳转分支（对标 Vue navigateToCaptureInfo）
       if (res.hasHandout) {
         // 有讲义 → 课前课中页
-        _navigateTo('/conquer/beforeDuringClass', {
+        _navigateTo('/conquerPackage/beforeDuringClass', {
           'status': '1',
           'packId': item.id,
           'courseId': widget.courseId,
@@ -233,8 +235,8 @@ class _CaptureListPageState extends State<CaptureListPage> {
       if (res.hasQuestion) {
         // 有题目 → 过渡页 或 习题页
         final pagePath = res.nowStudyObjectType == 0
-            ? '/conquer/transitionPage'
-            : '/conquer/classExercises';
+            ? '/conquerPackage/transitionPage'
+            : '/conquerPackage/classExercises';
         _navigateTo(pagePath, {
           'status': '3',
           'courseId': widget.courseId,
@@ -261,21 +263,25 @@ class _CaptureListPageState extends State<CaptureListPage> {
     }
   }
 
-  /// 页面跳转（占位 —— 待路由统一后替换为正式路由名）
+  /// 页面跳转（go_router push + extra 传参）
   void _navigateTo(String path, Map<String, String> params) {
-    // TODO(路由): 替换为项目统一的路由跳转方式
-    debugPrint('navigateTo: $path $params');
-    ScaffoldMessenger.of(context).showSnackBar(
-      SnackBar(content: Text('跳转 $path ${params.toString()}'), behavior: SnackBarBehavior.floating),
-    );
+     // TODO(路由): 替换为项目统一的路由跳转方式
+    // debugPrint('navigateTo: $path $params');
+    // ScaffoldMessenger.of(context).showSnackBar(
+    //   SnackBar(content: Text('跳转 $path ${params.toString()}'), behavior: SnackBarBehavior.floating),
+    // );
+    context.push(path, extra: params);
   }
 
-  /// 点击报告（跳转报告页）
+  /// 点击报告（跳转报告页，对标 Vue getReport）
+  /// recordId=攻克记录 id，packId=攻克包 id；判题中(status==3)不可点
   void _getReport(CourseRecord record, _CapturePackViewModel pack) {
     if (CaptureRecordStatus.fromInt(record.status) ==
         CaptureRecordStatus.processing) return;
-    // TODO(路由): 跳转报告页
-    debugPrint('跳转报告页 recordId=${record.id}, packId=${pack.id}');
+    _navigateTo('/conquerPackage/report', {
+      'recordId': '${record.id}',
+      'packId': pack.id,
+    });
   }
 
   // ========== 工具方法 ==========
@@ -285,16 +291,6 @@ class _CaptureListPageState extends State<CaptureListPage> {
     return chineseNum[num.clamp(0, 9)];
   }
 
-  String _formatDuration(int seconds) {
-    if (seconds <= 0) return '0秒';
-    final h = seconds ~/ 3600;
-    final m = (seconds % 3600) ~/ 60;
-    final s = seconds % 60;
-    if (h > 0) return '${h}时${m}分';
-    if (m > 0) return '${m}分${s}秒';
-    return '${s}秒';
-  }
-
   // ========== 构建 ==========
 
   @override
@@ -886,7 +882,7 @@ class _CaptureListPageState extends State<CaptureListPage> {
                       ),
                       SizedBox(width: 13.w),
                       Text(
-                        _formatDuration(0), // TODO: 后端 record 没有用时字段，需确认
+                        formatDuration(record.overcomeTimeSecond),
                         style: TextStyle(fontSize: 12.sp, color: _subtitleColor),
                       ),
                     ],

lib/features/conquerPackage/classExercises/controllers/exercise_collect.dart

@@ -0,0 +1,83 @@
+/// ============================================================
+/// 【课堂习题 · 收藏 / 错题本】（1:1 迁移 Vue exerciseCollect.js）
+///
+/// type=1 收藏；type=2 错题（仅 view 模式可用）。
+/// ============================================================
+library;
+
+import 'package:new_learn/core/api/conquerPackage/classExercises/api.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_session.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+
+class ExerciseCollectHandlers {
+  ExerciseCollectHandlers({
+    required this.session,
+    required this.bridge,
+  });
+
+  final ExerciseSession session;
+  final ExerciseUiBridge bridge;
+  final ClassExercisesApi _api = ClassExercisesApi.instance;
+
+  dynamic _field(dynamic resp, String key) {
+    if (resp is Map) {
+      if (resp[key] != null) return resp[key];
+      final data = resp['data'];
+      if (data is Map && data[key] != null) return data[key];
+    }
+    return null;
+  }
+
+  /// type：1=收藏，2=错题本
+  Future<void> onClickAddUserCollect(int type) async {
+    // 错题仅查看模式可用
+    if (type == 2 && !session.isView) return;
+
+    final info = session.currentQuestion;
+    if (info == null) return;
+
+    final selected = type == 1 ? info.isCollect : info.isWrongCollect;
+    try {
+      if (selected) {
+        final id = type == 1 ? info.collectId : info.wrongCollectId;
+        await _api.cancleCollect(<String, dynamic>{
+          'type': type,
+          'id': id ?? 0,
+        });
+        _syncCollectState(type, true, null, info);
+        bridge.toast(type == 1 ? '取消收藏成功' : '取消错题成功');
+      } else {
+        final packId =
+            session.totalPackId.isNotEmpty ? session.totalPackId : session.packId;
+        final res = await _api.addUserCollect(<String, dynamic>{
+          'type': type,
+          'packId': packId,
+          'questionId': info.questionId,
+          'recordQuestionId': info.id,
+        });
+        final resId = _field(res, 'id');
+        _syncCollectState(type, false, resId, info);
+        bridge.toast(type == 1 ? '收藏成功' : '错题添加成功');
+      }
+      bridge.notifyListeners();
+    } catch (_) {
+      bridge.toast(type == 1 ? '收藏失败' : '失败');
+    }
+  }
+
+  /// 同步收藏态（对标 syncCollectState）
+  void _syncCollectState(
+    int type,
+    bool wasSelected,
+    dynamic resId,
+    QuestionModel info,
+  ) {
+    if (type == 2) {
+      info.isWrongCollect = !wasSelected;
+      info.wrongCollectId = wasSelected ? 0 : resId;
+    } else {
+      info.isCollect = !wasSelected;
+      info.collectId = wasSelected ? 0 : resId;
+    }
+  }
+}

lib/features/conquerPackage/classExercises/controllers/exercise_load.dart

@@ -0,0 +1,172 @@
+/// ============================================================
+/// 【课堂习题 · 数据加载】（1:1 迁移 Vue exerciseLoad.js）
+///
+/// - loadStartOvercome：edit 模式，GetRecordData + GetListByRecordQuestion，
+///   解析题目、追加 sort、补 hasOptionChildrenQuestion、挂学科 id；
+/// - loadSubmitReport：view 模式，GetSubmitReport，错题模式过滤重排。
+///
+/// 调试：loadStartOvercome 在接口返回后会（仅 kDebugMode）追加
+/// assets/mock/class_exercises_edit.json（取自 Vue exerciseLoad.js）。
+/// ============================================================
+library;
+
+import 'dart:convert';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+import 'package:new_learn/core/api/conquerPackage/classExercises/api.dart';
+import 'package:new_learn/core/utils/question/exam_answer_card.dart';
+import 'package:new_learn/core/utils/question/question_constant.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_session.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_sort.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+
+class ExerciseLoadResult {
+  const ExerciseLoadResult({
+    required this.recordId,
+    required this.navBarTitle,
+    required this.baseSubjectId,
+    required this.questions,
+    required this.originalMaxSort,
+  });
+
+  final String recordId;
+  final String navBarTitle;
+  final int? baseSubjectId;
+  final List<QuestionModel> questions;
+
+  /// view 全量题号最大值（错题模式下供页面保留原始题号总数）
+  final int originalMaxSort;
+}
+
+class ExerciseLoad {
+  ExerciseLoad._();
+
+  /// edit 模式加载（对标 loadStartOvercome）
+  ///
+  /// [inputRecordId] 路由带入的 recordId；[currentIndex] 为起始大题索引，
+  /// 该题会写入当前 startTime；[baseSubjectIdOverride] 为路由/base 传入的
+  /// 学科 id（对应 Vue 的 baseSubjectId ?? resRecord.baseSubjectId）。
+  static Future<ExerciseLoadResult> loadStartOvercome({
+    required String inputRecordId,
+    int currentIndex = 0,
+    int? baseSubjectIdOverride,
+  }) async {
+    final api = ClassExercisesApi.instance;
+    final resRecord = await api.getRecordData(inputRecordId);
+    final resList = await api.getListByRecordQuestion(inputRecordId);
+
+    // 接口照常请求；debug 测试时再把 exerciseLoad.js 里的 JSON 试题追加进去
+    await _injectDebugQuestions(resList.items);
+
+    final navBarTitle = '${resRecord.name}专项智能攻克';
+    final subjectId = baseSubjectIdOverride ?? resRecord.baseSubjectId;
+    final subjectType = getSubjectTypeById(subjectId) ?? 0;
+
+    final parsed = <Map<String, dynamic>>[];
+    for (var i = 0; i < resList.items.length; i++) {
+      final item = resList.items[i];
+      if (i == currentIndex) {
+        item['startTime'] = getCurrentISO();
+      }
+      // 1=图片作答 / 手写；0=输入框
+      item['iSFilllankItemUpload'] = subjectType;
+      parsed.add(parseQuestionData(item, mergeOriginalChilds: true));
+    }
+
+    var list = appendQuestionSort(parsed);
+    list = appendExamQuestionChildOptionStatus(list, subjectId);
+
+    final bsid = subjectId;
+    for (final q in list) {
+      q['baseSubjectId'] = bsid;
+    }
+
+    return ExerciseLoadResult(
+      recordId: resRecord.recordId,
+      navBarTitle: navBarTitle,
+      baseSubjectId: bsid,
+      questions: list.map(QuestionModel.new).toList(),
+      originalMaxSort: 0,
+    );
+  }
+
+  /// view 模式加载（对标 loadSubmitReport）
+  ///
+  /// [isWrong] 为 true 时只保留答错题并重排 wrongSort，同时把起始索引置 0
+  /// （调用方不要再用旧 currentIndex）。
+  static Future<ExerciseLoadResult> loadSubmitReport({
+    required String packId,
+    bool isWrong = false,
+    int currentIndex = 0,
+  }) async {
+    final api = ClassExercisesApi.instance;
+    final res = await api.getSubmitReport(packId);
+
+    final navBarTitle = '${res.name}专项智能攻克';
+    final subjectType = getSubjectTypeById(res.baseSubjectId) ?? 0;
+
+    final parsed = <Map<String, dynamic>>[];
+    for (var i = 0; i < res.questions.length; i++) {
+      final item = res.questions[i];
+      if (i == currentIndex) {
+        item['startTime'] = getCurrentISO();
+      }
+      item['iSFilllankItemUpload'] = subjectType;
+      parsed.add(parseQuestionData(item, mergeOriginalChilds: true));
+    }
+
+    var fullList = appendQuestionSort(parsed);
+    fullList = appendExamQuestionChildOptionStatus(fullList, res.baseSubjectId);
+
+    var maxSort = 0;
+    for (final item in fullList.map(QuestionModel.new).toList()) {
+      final end = getQuestionSortRange(item).end;
+      if (end > maxSort) maxSort = end;
+    }
+
+    List<QuestionModel> questions;
+    if (isWrong) {
+      questions = filterWrongQuestions(fullList.map(QuestionModel.new).toList());
+    } else {
+      questions = fullList.map(QuestionModel.new).toList();
+    }
+
+    for (final q in questions) {
+      q.baseSubjectId = res.baseSubjectId;
+    }
+
+    return ExerciseLoadResult(
+      recordId: res.id,
+      navBarTitle: navBarTitle,
+      baseSubjectId: res.baseSubjectId,
+      questions: questions,
+      originalMaxSort: maxSort,
+    );
+  }
+
+  /// 【仅 debug 测试】真实接口请求完成后，把 Vue exerciseLoad.js 里的
+  /// JSON 试题追加到列表尾部（对标 JS 里 `res.push(...listX)`）。
+  /// release 包直接 no-op；测完删掉 [loadStartOvercome] 里的调用即可。
+  static Future<void> _injectDebugQuestions(
+    List<Map<String, dynamic>> items,
+  ) async {
+    if (!kDebugMode) return;
+    try {
+      final raw = await rootBundle
+          .loadString('assets/mock/class_exercises_edit.json');
+      final list = jsonDecode(raw);
+      if (list is List) {
+        for (final item in list) {
+          if (item is Map) {
+            items.add(Map<String, dynamic>.from(item));
+          }
+        }
+        debugPrint('[ExerciseLoad] 已追加 ${list.length} 道测试 JSON 试题');
+      }
+    } catch (e) {
+      debugPrint('[ExerciseLoad] 测试 JSON 追加失败: $e');
+    }
+  }
+}

lib/features/conquerPackage/classExercises/controllers/exercise_navigation.dart

@@ -0,0 +1,418 @@
+/// ============================================================
+/// 【课堂习题 · 翻页 / 子题切换 / 答题卡定位】
+///
+/// 1:1 迁移 Vue exerciseNavigation.js（createNavigationHandlers）。
+///
+/// Flutter 端 PageView 使用 NeverScrollableScrollPhysics，所有翻页都由
+/// 本控制器经 [ExerciseUiBridge.jumpToPage] 主动触发（对标程序 slideTo），
+/// PageView.onPageChanged 只接 [handlePageChange] 做状态同步，不再重复提交。
+/// ============================================================
+library;
+
+import 'dart:async';
+
+import 'package:flutter/widgets.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_session.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_sort.dart' as sort;
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_submit.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+
+class ExerciseNavigationHandlers {
+  ExerciseNavigationHandlers({
+    required this.session,
+    required this.bridge,
+    required this.submit,
+    required this.openTimePopup,
+    required this.openUploadNotesPopup,
+    required this.submitExamPaper,
+  });
+
+  final ExerciseSession session;
+  final ExerciseUiBridge bridge;
+
+  /// 单题提交控制器（calculateRemainTime / QuestionRenewTimeFn）
+  final ExerciseSubmitHandlers submit;
+
+  /// 页面级“最低学习时长”拦截（含 isWrong 判断）
+  final bool Function() openTimePopup;
+
+  /// 页面级“上传笔记”拦截（含 isWrong 判断）
+  final bool Function() openUploadNotesPopup;
+
+  /// 交卷入口
+  final void Function(String type) submitExamPaper;
+
+  bool _isProgrammaticJump = false;
+  Timer? _programmaticJumpTimer;
+
+  /// 标记程序跳转（400ms 内忽略手势重复触发）
+  void markProgrammaticJump({Duration duration = const Duration(milliseconds: 400)}) {
+    _isProgrammaticJump = true;
+    _programmaticJumpTimer?.cancel();
+    _programmaticJumpTimer = Timer(duration, () {
+      _isProgrammaticJump = false;
+      _programmaticJumpTimer = null;
+    });
+  }
+
+  bool get isProgrammaticJump => _isProgrammaticJump;
+
+  // ---------------- 题号计算 ----------------
+
+  sort.SortRange getDisplayQuestionSortRange(int targetIndex) =>
+      sort.getDisplayQuestionSortRange(session.questions, targetIndex);
+
+  sort.ResolvedSortTarget resolveTargetByDisplaySort(int targetSort) =>
+      sort.resolveTargetByDisplaySort(session.questions, targetSort);
+
+  ExerciseSubmitHandlers get _submit => submit;
+
+  int get totalSortCount {
+    if (session.questions.isEmpty) return 0;
+    return getDisplayQuestionSortRange(session.questions.length - 1).end;
+  }
+
+  int get totalWrongSortCount {
+    var maxSort = 0;
+    for (final item in session.questions) {
+      final end = sort.getWrongQuestionSortRange(item).end;
+      if (end > maxSort) maxSort = end;
+    }
+    return maxSort;
+  }
+
+  int _safeActiveSubIndex(QuestionModel item) {
+    final subs = item.subQuestions;
+    if (subs.isEmpty) return 0;
+    final raw = session.activeSubIndexMap[session.currentIndex] ?? 0;
+    return raw < 0
+        ? 0
+        : (raw > subs.length - 1 ? subs.length - 1 : raw);
+  }
+
+  /// 当前展示题号（currentSortLabel）
+  int get currentSortLabel {
+    final item = session.currentQuestion;
+    if (item == null) return 0;
+    final start = getDisplayQuestionSortRange(session.currentIndex).start;
+    if (sort.shouldCountSubQuestions(item)) {
+      return start + _safeActiveSubIndex(item);
+    }
+    return start;
+  }
+
+  /// 错题模式当前题号（currentWrongSortLabel）
+  int get currentWrongSortLabel {
+    final item = session.currentQuestion;
+    if (item == null) return 0;
+    final start = sort.getWrongQuestionSortRange(item).start;
+    if (item.hasChild && item.subQuestions.isNotEmpty) {
+      final sub = item.subQuestions[_safeActiveSubIndex(item)];
+      return sub.wrongSort ?? start;
+    }
+    return start;
+  }
+
+  /// 进度百分比（percentage，ceil）
+  int get percentage {
+    if (session.isWrong) {
+      final total = totalWrongSortCount;
+      if (total == 0) return 0;
+      final item = session.currentQuestion;
+      if (item == null) return 0;
+      final range = sort.getWrongQuestionSortRange(item);
+      var current = range.start;
+      if (sort.shouldCountSubQuestions(item)) {
+        final sub = item.subQuestions[_safeActiveSubIndex(item)];
+        current = sub.wrongSort ?? range.start;
+      }
+      return (current / total * 100).ceil();
+    }
+    final total = totalSortCount;
+    if (total == 0) return 0;
+    final item = session.currentQuestion;
+    if (item == null) return 0;
+    final start = getDisplayQuestionSortRange(session.currentIndex).start;
+    var current = start;
+    if (sort.shouldCountSubQuestions(item)) {
+      current = start + _safeActiveSubIndex(item);
+    }
+    return (current / total * 100).ceil();
+  }
+
+  bool get isPrevDisabled =>
+      session.currentIndex == 0 ? !canGoPrevSubQuestion() : false;
+
+  // ---------------- 切页状态同步 ----------------
+
+  /// 大题切页后的状态同步（对标 handlePageChange，不含提交）
+  void handlePageChange(int index) {
+    final prevIndex = session.currentIndex;
+    if (prevIndex != index) {
+      // 注册表暂停，不遍历 element 树，动画收尾帧调用也安全；
+      // 旧页 isActive 翻转后 didUpdateWidget 也会暂停一次（双保险）
+      session.itemRefs[prevIndex]?.currentState?.pauseMedia();
+    }
+    session.currentIndex = index;
+    final q = session.currentQuestion;
+    if (q != null) {
+      q.startTime = getCurrentISO();
+    }
+
+    final pendingSub = session.pendingSubIndexMap[index];
+    if (pendingSub != null) {
+      session.activeSubIndexMap[index] = pendingSub;
+      final pageKey = session.itemRefs[index];
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        Future<void>.delayed(const Duration(milliseconds: 500), () {
+          pageKey?.currentState?.setActiveSubIndex(pendingSub);
+          session.pendingSubIndexMap.remove(index);
+        });
+      });
+    }
+    session.countDownKey?.currentState?.reset();
+    bridge.notifyListeners();
+  }
+
+  bool _hasSubQuestions(QuestionModel? item) =>
+      sort.shouldCountSubQuestions(item);
+
+  int _currentActiveSubIndex(QuestionModel item) {
+    if (!_hasSubQuestions(item)) return -1;
+    final total = item.subQuestions.length;
+    final current = session.activeSubIndexMap[session.currentIndex] ?? 0;
+    return current < 0
+        ? 0
+        : (current > total - 1 ? total - 1 : current);
+  }
+
+  /// 跨大题切页前提交当前页（对标 submitCurrentQuestionBeforePageSwitch）
+  void submitCurrentQuestionBeforePageSwitch() {
+    _submit.calculateRemainTime();
+    final item = session.currentQuestion;
+    if (item == null) return;
+
+    // 填空题单个空：直接提交大题
+    if (item.childs.length == 1 && item.questionTypes == 'tiankongti') {
+      _submit.questionRenewTimeFn(item, null);
+      return;
+    }
+    // hasOptionChildrenQuestion=false 且图片作答：整题算 1 题
+    if (item.isFillblankItemUpload == 1 &&
+        !item.hasOptionChildrenQuestion) {
+      _submit.questionRenewTimeFn(item, null);
+      return;
+    }
+    // 有小题：提交当前激活子题
+    if (_hasSubQuestions(item) || item.childs.isNotEmpty) {
+      final data = session.panelKey?.currentState?.getChildData();
+      _submit.questionRenewTimeFn(
+        data?.data ?? QuestionModel(<String, dynamic>{}),
+        item.id,
+      );
+      return;
+    }
+    _submit.questionRenewTimeFn(item, null);
+  }
+
+  /// 复合题面板子题切换（对标 handleSubQuestionChange）
+  void handleSubQuestionChange(int questionIndex, int subIndex) {
+    final item = questionIndex >= 0 && questionIndex < session.questions.length
+        ? session.questions[questionIndex]
+        : null;
+    final subs = item == null
+        ? const []
+        : (item.subQuestions.isNotEmpty
+            ? item.mapList('subQuestions')
+            : item.mapList('bkTagMetaList'));
+    final safe = subs.isEmpty
+        ? 0
+        : (subIndex < 0 ? 0 : (subIndex > subs.length - 1 ? subs.length - 1 : subIndex));
+    session.activeSubIndexMap[questionIndex] = safe;
+  }
+
+  bool canGoNextSubQuestion() {
+    final item = session.currentQuestion;
+    if (!_hasSubQuestions(item)) return false;
+    final current = _currentActiveSubIndex(item!);
+    return current >= 0 && current < item.subQuestions.length - 1;
+  }
+
+  bool canGoPrevSubQuestion() {
+    final item = session.currentQuestion;
+    if (!_hasSubQuestions(item)) return false;
+    return _currentActiveSubIndex(item!) > 0;
+  }
+
+  bool goNextSubQuestion() {
+    final item = session.currentQuestion;
+    if (!_hasSubQuestions(item)) return false;
+    final current = _currentActiveSubIndex(item!);
+    if (current < 0 || current >= item.subQuestions.length - 1) return false;
+
+    _submit.calculateRemainTime();
+    final data = session.panelKey?.currentState?.getChildData();
+    _submit.questionRenewTimeFn(
+      data?.data ?? QuestionModel(<String, dynamic>{}),
+      session.currentQuestion?.id ?? '',
+    );
+    session.activeSubIndexMap[session.currentIndex] = current + 1;
+    bridge.notifyListeners();
+    return true;
+  }
+
+  bool goPrevSubQuestion() {
+    final item = session.currentQuestion;
+    if (!_hasSubQuestions(item)) return false;
+    final current = _currentActiveSubIndex(item!);
+    if (current <= 0) return false;
+
+    _submit.calculateRemainTime();
+    final data = session.panelKey?.currentState?.getChildData();
+    _submit.questionRenewTimeFn(
+      data?.data ?? QuestionModel(<String, dynamic>{}),
+      session.currentQuestion?.id ?? '',
+    );
+    session.activeSubIndexMap[session.currentIndex] = current - 1;
+    bridge.notifyListeners();
+    return true;
+  }
+
+  /// 答题卡定位（对标 handleAnswerCardSelect）
+  Future<void> handleAnswerCardSelect(Map<String, dynamic> question) async {
+    final currentQuestionIndex = session.currentIndex;
+    final currentInfo = session.currentQuestion;
+    final currentActiveSubIndex =
+        currentInfo == null ? -1 : _currentActiveSubIndex(currentInfo);
+
+    var targetQuestionIndex = -1;
+    var targetSubIndex = -1;
+
+    final parentIndex = question['parentIndex'];
+    if (parentIndex is int && parentIndex >= 0) {
+      targetQuestionIndex = parentIndex;
+      targetSubIndex = int.tryParse('${question['subIndex'] ?? -1}') ?? -1;
+    } else {
+      final displaySort = int.tryParse('${question['sort'] ?? 0}') ?? 0;
+      if (displaySort == 0) return;
+      final resolved = resolveTargetByDisplaySort(displaySort);
+      targetQuestionIndex = resolved.questionIndex;
+      targetSubIndex = resolved.subIndex;
+    }
+
+    if (targetQuestionIndex < 0) return;
+
+    final shouldSubmitBeforeJump =
+        targetQuestionIndex != currentQuestionIndex ||
+            (targetQuestionIndex == currentQuestionIndex &&
+                targetSubIndex >= 0 &&
+                targetSubIndex != currentActiveSubIndex);
+    if (!session.isView && shouldSubmitBeforeJump) {
+      // 只触发提交，不 await，避免跳题卡顿
+      submitCurrentQuestionBeforePageSwitch();
+    }
+
+    if (targetSubIndex >= 0) {
+      final targetItem = targetQuestionIndex >= 0 &&
+              targetQuestionIndex < session.questions.length
+          ? session.questions[targetQuestionIndex]
+          : null;
+      final subTotal = targetItem?.subQuestions.length ?? 0;
+      if (subTotal > 0) {
+        targetSubIndex = targetSubIndex > subTotal - 1 ? subTotal - 1 : targetSubIndex;
+        if (targetSubIndex < 0) targetSubIndex = 0;
+        session.activeSubIndexMap[targetQuestionIndex] = targetSubIndex;
+        session.pendingSubIndexMap[targetQuestionIndex] = targetSubIndex;
+      } else {
+        targetSubIndex = -1;
+      }
+    }
+
+    if (targetQuestionIndex != currentQuestionIndex) {
+      markProgrammaticJump();
+      _submit.calculateRemainTime();
+      await Future<void>.delayed(const Duration(milliseconds: 500));
+      bridge.jumpToPage(targetQuestionIndex);
+      return;
+    }
+
+    if (targetSubIndex >= 0) {
+      WidgetsBinding.instance.addPostFrameCallback((_) {
+        session.itemRefs[targetQuestionIndex]
+            ?.currentState
+            ?.setActiveSubIndex(targetSubIndex);
+      });
+      bridge.notifyListeners();
+    }
+  }
+
+  /// 触发当前页“上传笔记”
+  Future<void>? uploadNotes() {
+    return session.itemRefs[session.currentIndex]
+        ?.currentState
+        ?.uploadLectureNotes();
+  }
+
+  /// 下一题（含复合题内部下一小题）
+  void nextStep() {
+    if (canGoNextSubQuestion()) {
+      goNextSubQuestion();
+      return;
+    }
+    submitCurrentQuestionBeforePageSwitch();
+    if (session.currentIndex == session.questions.length - 1) return;
+    markProgrammaticJump();
+    bridge.jumpToPage(session.currentIndex + 1);
+  }
+
+  /// 上一题（含复合题内部上一小题）
+  void previousStep() {
+    if (canGoPrevSubQuestion()) {
+      goPrevSubQuestion();
+      return;
+    }
+    if (session.currentIndex == 0) return;
+    submitCurrentQuestionBeforePageSwitch();
+    markProgrammaticJump();
+    bridge.jumpToPage(session.currentIndex - 1);
+  }
+
+  /// 顶部返回：通知页面打开退出确认弹窗
+  void clickBackNavBar() {
+    bridge.openExitPopup();
+  }
+
+  /// 底部上一题 / 下一题统一入口（对标 switchStep）
+  void switchStep(String type, [String? timePopupIfNeeded]) {
+    if (session.currentIndex == 0 &&
+        type == 'PreviousStep' &&
+        !canGoPrevSubQuestion()) {
+      return;
+    }
+
+    if (type == 'NextStep') {
+      // 最低学习时长只拦“跨大题”，不拦大题内子题切换
+      if (timePopupIfNeeded != 'minimumLearningDuration') {
+        if (!canGoNextSubQuestion() && openTimePopup()) return;
+      }
+      if (openUploadNotesPopup()) return;
+
+      if (currentSortLabel == totalSortCount) {
+        submitExamPaper('submit');
+        return;
+      }
+      nextStep();
+    } else if (type == 'PreviousStep') {
+      previousStep();
+    }
+  }
+
+  /// view 最后一题“完成”：回攻克列表
+  void completeEnd() {
+    bridge.relaunchCaptureList(session.courseId);
+  }
+
+  void dispose() {
+    _programmaticJumpTimer?.cancel();
+  }
+}

lib/features/conquerPackage/classExercises/controllers/exercise_session.dart

@@ -0,0 +1,136 @@
+/// ============================================================
+/// 【课堂习题 · 会话状态与 UI 桥接】
+///
+/// Vue 端各 createXxxHandlers 通过一堆 ref 共享状态；Flutter 端按
+/// 用户拍板用“普通 Dart 控制器（无 Riverpod）”，因此把跨控制器共享
+/// 的可变状态收敛到 [ExerciseSession]，把与 Widget/导航/弹窗相关的
+/// 副作用收敛到 [ExerciseUiBridge]，由页面 State 实现并注入。
+/// ============================================================
+library;
+
+import 'package:flutter/widgets.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/exercise_question_view.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/widgets/compound_question_panel.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/widgets/question_plan_countdown.dart';
+
+/// 当前本地 ISO 时间（对标 getCurrentISO）
+String getCurrentISO() => DateTime.now().toIso8601String();
+
+/// 攻克流程弹窗配置（对标 Vue conquerPopupCon）
+class ConquerPopupConfig {
+  ConquerPopupConfig({
+    this.show = false,
+    this.type = 'note',
+    this.title = '',
+    this.subtitle = '',
+    this.confirmText = '确定',
+    this.cancelText = '取消',
+    this.isConfirm = false,
+    this.confirmAction = '',
+  });
+
+  bool show;
+  String type; // note / time / submit / grading
+  String title;
+  String subtitle;
+  String confirmText;
+  String cancelText;
+  bool isConfirm;
+  String confirmAction;
+}
+
+/// 跨控制器共享的会话状态（字段名与 Vue 保持一致）
+class ExerciseSession {
+  /// 题目列表（解析后的 QuestionModel，与 Map 同引用语义）
+  List<QuestionModel> questions = [];
+
+  /// 当前大题索引（swiper index）
+  int currentIndex = 0;
+
+  /// edit / view
+  String mode = 'edit';
+
+  String courseId = '';
+  String packId = '';
+  String totalPackId = '';
+  String recordId = '';
+
+  bool isWrong = false;
+
+  /// view 全量题号（originalMaxSort）
+  int originalMaxSort = 0;
+
+  /// 导航栏标题
+  String navBarTitle = '';
+
+  /// 大题索引 -> 激活子题索引
+  final Map<int, int> activeSubIndexMap = {};
+
+  /// 大题索引 -> 等待页面挂载后定位的子题索引
+  final Map<int, int> pendingSubIndexMap = {};
+
+  /// 已处理过的题目 id（避免重复提交，对应 processedQuestionIds）
+  final Set<String> processedQuestionIds = <String>{};
+
+  /// 单题页 ref（itemRefs）
+  final Map<int, GlobalKey<ExerciseQuestionViewState>> itemRefs = {};
+
+  /// 复合题面板 ref（compoundQuestionFn）
+  GlobalKey<CompoundQuestionPanelState>? panelKey;
+
+  /// 倒计时组件 ref（countDownRef）
+  GlobalKey<QuestionPlanCountDownState>? countDownKey;
+
+  bool get isView => mode == 'view';
+
+  /// 当前题（questionsInfo）。Flutter 与列表元素保持同一引用，
+  /// 不再做 Vue 的浅拷贝。
+  QuestionModel? get currentQuestion {
+    if (currentIndex < 0 || currentIndex >= questions.length) return null;
+    return questions[currentIndex];
+  }
+}
+
+/// 控制器 -> 页面的副作用桥接（页面 State implements 本接口）
+abstract class ExerciseUiBridge {
+  /// 全局 loading（对标 uni.showLoading({mask:true})）
+  void showLoading([String message]);
+  void hideLoading();
+
+  /// 轻提示（对标 uni.showToast icon:none）
+  void toast(String message);
+
+  /// 通知页面刷新（对标 Vue ref 赋值触发渲染）
+  void notifyListeners();
+
+  /// PageController 切页（对标 swiper.slideTo）
+  void jumpToPage(int index);
+
+  /// 打开“退出攻克”确认框（openExitPopup）
+  void openExitPopup();
+
+  /// 展示攻克流程弹窗（getConquerPopupCon）
+  void showConquerPopup(ConquerPopupConfig config);
+
+  /// 关闭攻克流程弹窗
+  void hideConquerPopup();
+
+  /// 答题卡显隐（showAnswerSheet）
+  void setAnswerSheetVisible(bool visible);
+
+  /// 暂停弹窗显隐（showPausePopup）
+  void setPausePopupVisible(bool visible);
+
+  /// 交卷成功跳报告页（redirectTo report）
+  void redirectToReport(String recordId, String packId);
+
+  /// 返回上 N 页（navigateBack delta）
+  void navigateBack({int delta});
+
+  /// 重启到攻克列表（reLaunch captureList）
+  void relaunchCaptureList(String courseId);
+
+  /// 是否平板（对标 isPadDevice()，time 弹窗字号用）
+  bool get isPad;
+}

lib/features/conquerPackage/classExercises/controllers/exercise_sort.dart

@@ -0,0 +1,194 @@
+/// ============================================================
+/// 【课堂习题 · 题号区间 / 错题过滤】
+///
+/// 1:1 迁移 Vue exerciseNavigation.js 中的纯计算函数与
+/// classExercises.vue 中的 filterWrongQuestions / appendWrongQuestionSort。
+/// ============================================================
+library;
+
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+
+class SortRange {
+  const SortRange(this.start, this.end);
+  final int start;
+  final int end;
+}
+
+bool isWrongQuestionStatus(dynamic status) {
+  if (status == null) return true; // 对标 Number(undefined) != 10
+  final n = int.tryParse('$status');
+  return n != 10;
+}
+
+/// hasOptionChildrenQuestion === true 且有 subQuestions
+bool shouldCountSubQuestions(QuestionModel? item) {
+  if (item == null) return false;
+  return item.hasOptionChildrenQuestion && item.subQuestions.isNotEmpty;
+}
+
+/// 后端 sort 区间（Vue getQuestionSortRange：hasChild + subQuestions）
+SortRange getQuestionSortRange(QuestionModel? item) {
+  if (item == null) return const SortRange(0, 0);
+  final subs = item.subQuestions;
+  if (item.hasChild && subs.isNotEmpty) {
+    final first = subs.first.sort ?? 0;
+    final last = subs.last.sort ?? 0;
+    return SortRange(first, last == 0 ? first : last);
+  }
+  final sort = item.sort ?? 0;
+  return SortRange(sort, sort);
+}
+
+/// 错题 wrongSort 区间（Vue getWrongQuestionSortRange）
+SortRange getWrongQuestionSortRange(QuestionModel? item) {
+  if (item == null) return const SortRange(0, 0);
+  if (shouldCountSubQuestions(item)) {
+    final subs = item.subQuestions;
+    if (subs.isEmpty) {
+      final wrongSort = item.wrongSort ?? 0;
+      return SortRange(wrongSort, wrongSort);
+    }
+    final first = subs.first.wrongSort ?? 0;
+    final last = subs.last.wrongSort ?? 0;
+    return SortRange(first, last == 0 ? first : last);
+  }
+  final wrongSort = item.wrongSort ?? 0;
+  return SortRange(wrongSort, wrongSort);
+}
+
+/// 展示题号区间（按列表顺序，复合题占 N 个题号）
+SortRange getDisplayQuestionSortRange(
+  List<QuestionModel> questions,
+  int targetIndex,
+) {
+  var cursor = 1;
+  for (var i = 0; i < questions.length; i++) {
+    final item = questions[i];
+    final count = shouldCountSubQuestions(item) ? item.subQuestions.length : 1;
+    final start = cursor;
+    final end = cursor + count - 1;
+    if (i == targetIndex) return SortRange(start, end);
+    cursor = end + 1;
+  }
+  return const SortRange(0, 0);
+}
+
+/// 展示题号 -> 大题索引 + 子题索引
+class ResolvedSortTarget {
+  const ResolvedSortTarget(this.questionIndex, this.subIndex);
+  final int questionIndex;
+  final int subIndex; // 非子题为 -1
+}
+
+ResolvedSortTarget resolveTargetByDisplaySort(
+  List<QuestionModel> questions,
+  int targetSort,
+) {
+  if (targetSort <= 0) return const ResolvedSortTarget(-1, -1);
+  var cursor = 1;
+  for (var i = 0; i < questions.length; i++) {
+    final item = questions[i];
+    final count = shouldCountSubQuestions(item) ? item.subQuestions.length : 1;
+    final start = cursor;
+    final end = cursor + count - 1;
+    if (targetSort >= start && targetSort <= end) {
+      return ResolvedSortTarget(
+        i,
+        shouldCountSubQuestions(item) ? targetSort - start : -1,
+      );
+    }
+    cursor = end + 1;
+  }
+  return const ResolvedSortTarget(-1, -1);
+}
+
+String _getIdString(Map<String, dynamic> obj) {
+  final raw = obj['raw'];
+  if (raw is Map && raw['id'] != null) return '${raw['id']}';
+  if (obj['id'] != null) return '${obj['id']}';
+  if (obj['questionId'] != null) return '${obj['questionId']}';
+  return '';
+}
+
+/// 过滤错题并按原序重排 wrongSort（Vue filterWrongQuestions）
+List<QuestionModel> filterWrongQuestions(List<QuestionModel> list) {
+  final filtered = <QuestionModel>[];
+
+  for (final item in list) {
+    if (shouldCountSubQuestions(item)) {
+      final subs = item.mapList('subQuestions');
+      final wrongSubs =
+          subs.where((sub) => isWrongQuestionStatus(sub['answerStatus'])).toList();
+      if (wrongSubs.isEmpty) continue;
+
+      final childs = item.mapList('childs');
+      final childById = <String, Map<String, dynamic>>{};
+      for (final child in childs) {
+        final key = _getIdString(child);
+        if (key.isNotEmpty) childById[key] = child;
+      }
+
+      final wrongChilds = <Map<String, dynamic>>[];
+      for (final sub in wrongSubs) {
+        final key = _getIdString(sub);
+        final byId = key.isNotEmpty ? childById[key] : null;
+        if (byId != null) {
+          wrongChilds.add(byId);
+          continue;
+        }
+        final subIndex = subs.indexOf(sub);
+        if (subIndex >= 0 && subIndex < childs.length) {
+          wrongChilds.add(childs[subIndex]);
+          continue;
+        }
+        wrongChilds.add(sub);
+      }
+
+      filtered.add(QuestionModel({
+        ...item.m,
+        'subQuestions': wrongSubs,
+        'childs': wrongChilds,
+      }));
+      continue;
+    }
+
+    final childs = item.mapList('childs');
+    final hasWrongChild = childs.isNotEmpty &&
+        childs.any((child) => isWrongQuestionStatus(child['answerStatus']));
+    if (hasWrongChild || isWrongQuestionStatus(item.m['answerStatus'])) {
+      filtered.add(item);
+    }
+  }
+
+  int orderSort(QuestionModel item) {
+    final subs = item.subQuestions;
+    if (subs.isNotEmpty) return subs.first.sort ?? 0;
+    return item.sort ?? 0;
+  }
+
+  filtered.sort((a, b) => orderSort(a) - orderSort(b));
+  return appendWrongQuestionSort(filtered);
+}
+
+/// 给过滤后的错题顺序追加 wrongSort（Vue appendWrongQuestionSort）
+List<QuestionModel> appendWrongQuestionSort(List<QuestionModel> list) {
+  var wrongSort = 1;
+  return list.map((item) {
+    if (shouldCountSubQuestions(item)) {
+      final newSubs = item.mapList('subQuestions').map((sub) {
+        return {
+          ...sub,
+          'wrongSort': wrongSort++,
+        };
+      }).toList();
+      return QuestionModel({
+        ...item.m,
+        'subQuestions': newSubs,
+      });
+    }
+    return QuestionModel({
+      ...item.m,
+      'wrongSort': wrongSort++,
+    });
+  }).toList();
+}

lib/features/conquerPackage/classExercises/controllers/exercise_submit.dart

@@ -0,0 +1,816 @@
+/// ============================================================
+/// 【课堂习题 · 单题提交 / 失败补提 / 交卷】
+///
+/// 1:1 迁移 Vue exerciseSubmit.js（createSubmitHandlers）。
+///
+/// 职责：
+///   1) 单题提交（客观题 QuestionRenewTime / 主观题 PushAIGrading）
+///   2) 填空题（输入框 / 图片作答）统一处理与提交
+///   3) 批量统计未处理 / 未作答题目（batchProcessQuestions）
+///   4) 交卷弹窗与提交入口（submitExamPaper / handlePopupConfirm）
+///   5) 失败队列本地持久化（shared_preferences，key classExercisesDraft:$courseId）
+/// ============================================================
+library;
+
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:new_learn/core/components/upload.dart';
+import 'package:new_learn/core/api/conquerPackage/classExercises/api.dart';
+import 'package:new_learn/core/utils/question/exam_answer_card.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_session.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_timing.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+
+/// 失败补提结果（对标 Vue {success, failedCount}）
+class RetryResult {
+  const RetryResult({required this.success, required this.failedCount});
+  final bool success;
+  final int failedCount;
+}
+
+/// 答题卡额外计数
+class AnswerCardExtraCounts {
+  const AnswerCardExtraCounts({
+    this.unansweredCount = 0,
+    this.pendingNotesCount = 0,
+  });
+  final int unansweredCount;
+  final int pendingNotesCount;
+}
+
+class _FailedEntry {
+  _FailedEntry({
+    required this.key,
+    required this.submitType,
+    required this.payload,
+  });
+
+  final String key;
+  final String submitType; // QuestionRenewTime / PushAIGrading
+  final Map<String, dynamic> payload;
+}
+
+class ExerciseSubmitHandlers {
+  ExerciseSubmitHandlers({
+    required this.session,
+    required this.bridge,
+  });
+
+  final ExerciseSession session;
+  final ExerciseUiBridge bridge;
+
+  final ClassExercisesApi _api = ClassExercisesApi.instance;
+
+  bool _submitLock = false;
+  Timer? _submitLockTimer;
+
+  /// 单题提交失败队列（交卷前统一补提）
+  final Map<String, _FailedEntry> _failedSubmitRequestMap = {};
+
+  String get _pendingStorageKey =>
+      'classExercisesDraft:${session.courseId}';
+
+  // ---------------- 失败队列 ----------------
+
+  String _buildFailedKey(Map<String, dynamic> payload) {
+    final id = payload['id'] ?? '';
+    final childId = payload['childId'] ?? 0;
+    final index = payload['index'] ?? '';
+    return '$id|$childId|$index';
+  }
+
+  void _upsertFailedSubmitRequest(
+    String submitType,
+    Map<String, dynamic> payload,
+  ) {
+    final key = _buildFailedKey(payload);
+    _failedSubmitRequestMap[key] = _FailedEntry(
+      key: key,
+      submitType: submitType,
+      payload: Map<String, dynamic>.from(payload),
+    );
+  }
+
+  void _removeFailedSubmitRequest(
+    String submitType,
+    Map<String, dynamic> payload,
+  ) {
+    _failedSubmitRequestMap.remove(_buildFailedKey(payload));
+  }
+
+  /// 进入页面时从本地缓存恢复失败队列
+  Future<void> restorePendingFromStorage() async {
+    final key = _pendingStorageKey;
+    if (key.endsWith(':')) return;
+    _failedSubmitRequestMap.clear();
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      final raw = prefs.getString(key);
+      if (raw == null || raw.isEmpty) return;
+      final cached = jsonDecode(raw);
+      final items = cached is Map && cached['items'] is List
+          ? cached['items'] as List
+          : const [];
+      for (final rawItem in items) {
+        if (rawItem is! Map) continue;
+        final payload = rawItem['payload'];
+        if (payload is! Map) continue;
+        final submitType = '${rawItem['submitType'] ?? ''}';
+        if (submitType != 'QuestionRenewTime' &&
+            submitType != 'PushAIGrading') {
+          continue;
+        }
+        final payloadMap = Map<String, dynamic>.from(payload);
+        final failedKey = _buildFailedKey(payloadMap);
+        _failedSubmitRequestMap[failedKey] = _FailedEntry(
+          key: failedKey,
+          submitType: submitType,
+          payload: payloadMap,
+        );
+      }
+    } catch (_) {
+      // 缓存损坏：忽略，从空队列开始
+    }
+  }
+
+  /// 把当前失败队列写回本地缓存（空队列时清缓存）
+  Future<void> persistPendingToStorage() async {
+    final key = _pendingStorageKey;
+    if (key.endsWith(':')) return;
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      final entries = _failedSubmitRequestMap.values.toList();
+      if (entries.isEmpty) {
+        await prefs.remove(key);
+        return;
+      }
+      final items = entries
+          .map((e) => {
+                'key': e.key,
+                'submitType': e.submitType,
+                'payload': e.payload,
+              })
+          .toList();
+      await prefs.setString(
+        key,
+        jsonEncode({
+          'version': 1,
+          'updatedAt': DateTime.now().millisecondsSinceEpoch,
+          'courseId': session.courseId,
+          'items': items,
+        }),
+      );
+    } catch (_) {
+      // 落盘失败不阻塞流程
+    }
+  }
+
+  /// 补提失败队列，默认 3 轮
+  Future<RetryResult> retryFailedSubmitRequests({
+    int maxRetryRounds = 3,
+  }) async {
+    for (var round = 0; round < maxRetryRounds; round++) {
+      final currentFailedList = _failedSubmitRequestMap.values.toList();
+      if (currentFailedList.isEmpty) {
+        return const RetryResult(success: true, failedCount: 0);
+      }
+      for (final item in currentFailedList) {
+        try {
+          final safePayload =
+              normalizeSubmitTimeRange(Map<String, dynamic>.from(item.payload));
+          if (item.submitType == 'QuestionRenewTime') {
+            await _api.questionRenewTime(safePayload);
+          } else if (item.submitType == 'PushAIGrading') {
+            await _api.pushAIGrading(safePayload);
+          }
+          _failedSubmitRequestMap.remove(item.key);
+        } catch (_) {
+          _upsertFailedSubmitRequest(item.submitType, item.payload);
+        }
+      }
+    }
+    return RetryResult(
+      success: _failedSubmitRequestMap.isEmpty,
+      failedCount: _failedSubmitRequestMap.length,
+    );
+  }
+
+  int getPendingCount() => _failedSubmitRequestMap.length;
+
+  // ---------------- 答案回填 ----------------
+
+  /// 倒计时结束：仅处理当前可见题
+  void finishPlanTime(dynamic questionId) {
+    final current = session.currentQuestion;
+    final currentQuestionId = current?.id ?? '${session.currentIndex}';
+    if (questionId != null &&
+        '$questionId'.isNotEmpty &&
+        '$questionId' != currentQuestionId) {
+      return;
+    }
+    current?.m['ISFinishPlanTime'] = true;
+    session.countDownKey?.currentState?.reset();
+  }
+
+  /// 客观题选择答案（e 为含 userAnswer 的回调载荷）
+  void selectAnswer(dynamic userAnswer, [int? questionIndex]) {
+    final idx = questionIndex ?? session.currentIndex;
+    final current = idx >= 0 && idx < session.questions.length
+        ? session.questions[idx]
+        : null;
+    if (current != null) current.userAnswer = userAnswer;
+  }
+
+  /// 单题答案更新（文本 / 图片 JSON 字符串）
+  void updateAnswer(dynamic value, [int? questionIndex]) {
+    final idx = questionIndex ?? session.currentIndex;
+    final current = idx >= 0 && idx < session.questions.length
+        ? session.questions[idx]
+        : null;
+    if (current != null) current.userAnswer = value;
+  }
+
+  /// 复合题：子题作答内容回填（startTime / userAnswer）
+  void getMyMinAnswer({required int index, required QuestionModel data}) {
+    final current = session.currentQuestion;
+    final subs = current?.mapList('subQuestions') ?? const [];
+    if (index >= 0 && index < subs.length) {
+      subs[index]['startTime'] = data.m['startTime'];
+      subs[index]['userAnswer'] = data.m['userAnswer'];
+    }
+  }
+
+  /// 切题 / 切子题前，把当前倒计时剩余秒数写回题目
+  void calculateRemainTime() {
+    final info = session.currentQuestion;
+    if (info == null) return;
+    if (info.planTimeSecond > 0 && !info.isFinishPlanTime) {
+      final countdown = session.countDownKey?.currentState;
+      if (countdown == null) return;
+      final remainMs = countdown.getRemainTime();
+      final remain = (remainMs < 0 ? 0 : remainMs) ~/ 1000;
+      info.newPlanTimeSecond = remain;
+    }
+  }
+
+  /// 填空题（图片作答）：subQuestions / childs 双写当前空的图片 JSON
+  void fillBlankImgChange(
+    List<dynamic> images,
+    int index, [
+    int? questionIndex,
+  ]) {
+    final idx = questionIndex ?? session.currentIndex;
+    if (idx < 0 || idx >= session.questions.length) return;
+    final res = session.questions[idx];
+    final subs = res.mapList('subQuestions');
+    final childs = res.mapList('childs');
+    final value = jsonEncode(images);
+    if (index >= 0 && index < subs.length) {
+      subs[index]['userAnswer'] = value;
+    }
+    if (index >= 0 && index < childs.length) {
+      childs[index]['userAnswer'] = value;
+    }
+  }
+
+  // ---------------- 时间范围 / 提交分发 ----------------
+
+  /// endTime 不能早于 startTime（对标 normalizeSubmitTimeRange）
+  Map<String, dynamic> normalizeSubmitTimeRange(
+    Map<String, dynamic> queryData,
+  ) {
+    final qd = Map<String, dynamic>.from(queryData);
+    if (qd['startTime'] == null || '${qd['startTime']}'.isEmpty) {
+      qd['startTime'] = getCurrentISO();
+    }
+    if (qd['endTime'] == null || '${qd['endTime']}'.isEmpty) {
+      qd['endTime'] = getCurrentISO();
+    }
+    final startRaw = qd['startTime'];
+    final endRaw = qd['endTime'];
+    if (startRaw == null || endRaw == null) return qd;
+    final startMs = DateTime.tryParse('$startRaw')?.millisecondsSinceEpoch;
+    final endMs = DateTime.tryParse('$endRaw')?.millisecondsSinceEpoch;
+    if (startMs == null || endMs == null) return qd;
+    if (endMs <= startMs) {
+      qd['endTime'] =
+          DateTime.fromMillisecondsSinceEpoch(startMs + 1000, isUtc: true)
+              .toIso8601String();
+    }
+    return qd;
+  }
+
+  /// 提交分发：userAnswer+answerStatus 走 RenewTime；answerImgs 走 PushAIGrading
+  Future<void> submitQuestionsReview(
+    Map<String, dynamic> queryData, {
+    bool throwOnError = false,
+  }) async {
+    if ('${queryData['id'] ?? ''}'.isEmpty) return;
+    final safeQueryData = normalizeSubmitTimeRange(queryData);
+    if (safeQueryData['startTime'] == null ||
+        safeQueryData['endTime'] == null) {
+      return;
+    }
+
+    if (queryData.containsKey('userAnswer') &&
+        queryData.containsKey('answerStatus')) {
+      try {
+        await _api.questionRenewTime(safeQueryData);
+        _removeFailedSubmitRequest('QuestionRenewTime', safeQueryData);
+      } catch (err) {
+        _upsertFailedSubmitRequest('QuestionRenewTime', safeQueryData);
+        if (throwOnError) rethrow;
+      }
+    }
+    if (queryData.containsKey('answerImgs')) {
+      try {
+        await _api.pushAIGrading(safeQueryData);
+        _removeFailedSubmitRequest('PushAIGrading', safeQueryData);
+      } catch (err) {
+        _upsertFailedSubmitRequest('PushAIGrading', safeQueryData);
+        if (throwOnError) rethrow;
+      }
+    }
+  }
+
+  /// AI 判题提交（主观题 / 图片作答）
+  /// [id] 非空表示子题提交（id=父题 id，childId=子题 id）
+  Future<void> pushAIGradingFn(
+    QuestionModel data,
+    String? id, {
+    bool throwOnError = false,
+  }) async {
+    session.processedQuestionIds.add(data.id);
+
+    List<dynamic> answerImgs;
+    if (id != null && id.isNotEmpty) {
+      final userAnswer = data.userAnswer;
+      final List<dynamic> parsed = userAnswer.isEmpty
+          ? const []
+          : (jsonDecode(userAnswer) as List? ?? const []);
+      answerImgs = parsed.whereType<Map>().map((raw) {
+        return {
+          'url': raw['Url'] ?? raw['url'],
+          'thumbnailUrl': raw['ThumbnailUrl'] ?? raw['thumbnailUrl'],
+        };
+      }).toList();
+    } else {
+      final pageState = session.itemRefs[session.currentIndex]?.currentState;
+      final rawList = pageState?.getImageList('uploadAnswerRef') ?? const [];
+      answerImgs = _normalizeAnswerImgs(rawList);
+    }
+
+    final queryData = <String, dynamic>{
+      'id': (id != null && id.isNotEmpty) ? id : data.id,
+      'childId': (id != null && id.isNotEmpty) ? data.id : 0,
+      'courseId': session.courseId,
+      'startTime': data.m['startTime'],
+      'endTime': getCurrentISO(),
+      'answerImgs': answerImgs,
+    };
+
+    await submitQuestionsReview(
+      queryData,
+      throwOnError: throwOnError,
+    );
+  }
+
+  List<Map<String, dynamic>> _normalizeAnswerImgs(List<dynamic> rawList) {
+    final result = <Map<String, dynamic>>[];
+    for (final raw in rawList) {
+      if (raw is UploadItem) {
+        if (raw.url.isEmpty) continue;
+        result.add({
+          'url': raw.url,
+          'thumbnailUrl': raw.thumbnailUrl ?? raw.url,
+        });
+      } else if (raw is Map) {
+        final url = '${raw['Url'] ?? raw['url'] ?? ''}';
+        if (url.isEmpty) continue;
+        result.add({
+          'url': url,
+          'thumbnailUrl': '${raw['ThumbnailUrl'] ?? raw['thumbnailUrl'] ?? url}',
+        });
+      }
+    }
+    return result;
+  }
+
+  /// 填空题图片作答提交（单空 / 多空统一走 answerImgs）
+  Future<void> handleFillBlankAnswer(
+    QuestionModel data,
+    String? id, {
+    bool throwOnError = false,
+  }) async {
+    final userAnswer = data.userAnswer;
+    final answerImgs = userAnswer.isEmpty
+        ? const []
+        : (jsonDecode(userAnswer) as List? ?? const []);
+    final queryData = <String, dynamic>{
+      'id': (id != null && id.isNotEmpty) ? id : data.id,
+      'childId': 0,
+      'courseId': session.courseId,
+      'startTime': data.m['startTime'],
+      'endTime': getCurrentISO(),
+      'answerImgs': answerImgs,
+    };
+    await submitQuestionsReview(
+      queryData,
+      throwOnError: throwOnError,
+    );
+  }
+
+  /// 题目提交入口（对标 QuestionRenewTimeFn）
+  Future<void> questionRenewTimeFn(
+    QuestionModel data,
+    String? id, {
+    bool throwOnError = false,
+  }) async {
+    if (session.isView) return;
+    session.processedQuestionIds.add(data.id);
+
+    // 非客观题 非填空 → AI 判题
+    if (data.options.isEmpty && data.questionTypes != 'tiankongti') {
+      await pushAIGradingFn(data, id, throwOnError: throwOnError);
+      return;
+    }
+
+    // 填空题（图片作答）
+    if (data.isFillblankItemUpload == 1 &&
+        data.questionTypes == 'tiankongti') {
+      await handleFillBlankAnswer(data, id, throwOnError: throwOnError);
+      return;
+    }
+
+    // 客观题：对比前剥离 HTML（与 Vue 一致，直接回写题目数据）
+    data.correctAnswer = stripAnswerPlain(data.correctAnswer);
+    data.userAnswer = stripAnswerPlain(data.userAnswer);
+
+    var answerStatus = 0;
+    if (formatQuestionText(data.userAnswer) ==
+        formatQuestionText(data.correctAnswer)) {
+      answerStatus = 10;
+    }
+    if (formatQuestionText(data.userAnswer) !=
+        formatQuestionText(data.correctAnswer)) {
+      answerStatus = 11;
+    }
+    // 多选题必须完全匹配；其他题型保留“包含即对”
+    if (data.questionTypes != 'duoxuanti' &&
+        data.correctAnswer.contains(data.userAnswer) &&
+        data.options.isNotEmpty) {
+      answerStatus = 10;
+    }
+    if ('${data.m['userAnswer'] ?? ''}'.isEmpty) answerStatus = 0;
+
+    final queryData = <String, dynamic>{
+      'id': (id != null && id.isNotEmpty) ? id : data.id,
+      'childId': (id != null && id.isNotEmpty) ? data.id : 0,
+      'courseId': session.courseId,
+      'userAnswer': data.userAnswer,
+      'startTime': data.m['startTime'],
+      'endTime': getCurrentISO(),
+      'answerStatus': answerStatus,
+    };
+
+    // 七选五
+    if (data.questionTypes == 'qixuanwu_sub' ||
+        data.questionTypes == 'qixuanwu') {
+      queryData['childId'] = 0;
+      queryData['index'] = data.m['index'];
+      final plainCorrect = stripAnswerPlain(data.correctAnswer);
+      final plainUser = stripAnswerPlain(data.userAnswer);
+      queryData['answerStatus'] = plainCorrect.contains(plainUser) ? 10 : 11;
+      if ('${data.m['userAnswer'] ?? ''}'.isEmpty) {
+        queryData['answerStatus'] = 0;
+      }
+    }
+
+    // 填空输入类：走小题
+    if (data.isFillblankItemUpload == 0 &&
+        data.questionTypes == 'tiankongti') {
+      queryData['childId'] = 0;
+      queryData['index'] = data.m['index'] ?? 1;
+      queryData['answerStatus'] = formatQuestionText(data.correctAnswer) ==
+              formatQuestionText(data.userAnswer)
+          ? 10
+          : 11;
+      if ('${data.m['userAnswer'] ?? ''}'.isEmpty) {
+        queryData['answerStatus'] = 0;
+      }
+    }
+
+    await submitQuestionsReview(
+      queryData,
+      throwOnError: throwOnError,
+    );
+  }
+
+  /// 复合题切子题时回填并提交（对标 seleCthildData）
+  void selectChildData({required int index, required QuestionModel data}) {
+    final currentItem = session.currentQuestion;
+    final subs = currentItem?.mapList('subQuestions') ?? const [];
+    var submitData = QuestionModel(<String, dynamic>{});
+    if (index >= 0 && index < subs.length) {
+      final sub = subs[index];
+      sub['startTime'] = data.m['startTime'];
+      sub['userAnswer'] = data.m['userAnswer'];
+      submitData = QuestionModel(sub);
+    }
+    final parentId = session.currentQuestion?.id ?? '';
+    questionRenewTimeFn(submitData, parentId);
+  }
+
+  // ---------------- 答题卡统计 ----------------
+
+  /// 拍平成答题卡题号列表（默认 isExamAnswerCard=true）
+  List<Map<String, dynamic>> batchProcessQuestions({
+    bool isExamAnswerCard = true,
+  }) {
+    return buildExamAnswerCardQuestions(
+      session.questions.map((q) => q.m).toList(),
+      isExamAnswerCard: isExamAnswerCard,
+    );
+  }
+
+  /// 未作答 / 待补笔记计数（口径与 Vue 一致）
+  AnswerCardExtraCounts getAnswerCardExtraCounts({
+    bool isExamAnswerCard = true,
+  }) {
+    final list = batchProcessQuestions(isExamAnswerCard: isExamAnswerCard);
+    var unansweredCount = 0;
+    var pendingNotesCount = 0;
+    for (final res in list) {
+      final userAnswer = res['userAnswer'];
+      final answerImgs = res['answerImgs'];
+      final answered = userAnswer != null && '$userAnswer'.isNotEmpty ||
+          (answerImgs is List && answerImgs.isNotEmpty);
+      if (!answered) unansweredCount += 1;
+      if (res['isUploadNotes'] == true) {
+        final notes = res['notes'];
+        if (!(notes is List && notes.isNotEmpty)) pendingNotesCount += 1;
+      }
+    }
+    return AnswerCardExtraCounts(
+      unansweredCount: unansweredCount,
+      pendingNotesCount: pendingNotesCount,
+    );
+  }
+
+  // ---------------- 弹窗配置 ----------------
+
+  /// 构建并展示攻克流程弹窗（对标 getConquerPopupCon）
+  void getConquerPopupCon(
+    String type,
+    dynamic data, {
+    String? confirmText,
+    String? cancelText,
+    bool? isConfirm,
+    String? confirmAction,
+    String? title,
+    String? subtitle,
+  }) {
+    late ConquerPopupConfig config;
+    if (type == 'note') {
+      config = ConquerPopupConfig(
+        show: true,
+        type: 'note',
+        title: '本题建议上传过程笔记',
+        subtitle: '记录解题思维过程，有助于您更好地复盘错题，提升学习效率。',
+        confirmText: '上传笔记',
+        cancelText: '取消',
+      );
+    } else if (type == 'grading') {
+      config = ConquerPopupConfig(
+        show: true,
+        type: 'grading',
+        title: '题目批改中',
+        subtitle: '预计 3~5 分钟有结果',
+        confirmText: '返回攻克列表',
+        cancelText: '取消',
+      );
+    } else if (type == 'submit') {
+      config = ConquerPopupConfig(
+        show: true,
+        type: 'submit',
+        title: '确认提交？',
+        subtitle:
+            '您还有<span class="spans" style="font-size:32rpx;color:#3D7DF5;"> $data</span> 道题未完成，是否确定提交练习？',
+        confirmText: '提交',
+        cancelText: '取消',
+      );
+    } else {
+      // time
+      final isPad = bridge.isPad;
+      config = ConquerPopupConfig(
+        show: true,
+        type: 'time',
+        title:
+            "<div style='font-size:${isPad ? '16px' : '14px'};'>根据你过往数据，建议攻克$data</div>",
+        subtitle:
+            "<div style=\"font-size:${isPad ? '13px' : '11px'};\">仓促速学掌握不牢，之后还要重新复习</div>"
+            "<div style=\"font-size:${isPad ? '13px' : '11px'};\">本次攻克成功，学习时长会逐步减少</div>",
+        confirmText: '跳过',
+        cancelText: '继续作答',
+        confirmAction: 'minimumLearningDuration',
+      );
+    }
+    // con 覆盖项
+    if (confirmText != null) config.confirmText = confirmText;
+    if (cancelText != null) config.cancelText = cancelText;
+    if (isConfirm != null) config.isConfirm = isConfirm;
+    if (confirmAction != null) config.confirmAction = confirmAction;
+    if (title != null) config.title = title;
+    if (subtitle != null) config.subtitle = subtitle;
+    bridge.showConquerPopup(config);
+  }
+
+  // ---------------- 交卷 ----------------
+
+  Future<void> _submitCurrentQuestionBeforeSubmitExamPaper() async {
+    if (session.isView) return;
+    final item = session.currentQuestion;
+    if (item == null) return;
+
+    // 填空题单个空：直接提交大题
+    if (item.childs.length == 1 && item.questionTypes == 'tiankongti') {
+      await questionRenewTimeFn(item, null, throwOnError: true);
+      return;
+    }
+    // hasOptionChildrenQuestion=false 且图片作答：整题算 1 题
+    if (item.isFillblankItemUpload == 1 &&
+        !item.hasOptionChildrenQuestion) {
+      await questionRenewTimeFn(item, null, throwOnError: true);
+      return;
+    }
+    // 有小题：提交当前激活子题
+    final hasSub = shouldCountSubQuestionsLocal(item) || item.childs.isNotEmpty;
+    if (hasSub) {
+      final childData = session.panelKey?.currentState?.getChildData();
+      await questionRenewTimeFn(
+        childData?.data ?? QuestionModel(<String, dynamic>{}),
+        item.id,
+        throwOnError: true,
+      );
+      return;
+    }
+    await questionRenewTimeFn(item, null, throwOnError: true);
+  }
+
+  bool shouldCountSubQuestionsLocal(QuestionModel item) =>
+      item.hasOptionChildrenQuestion && item.subQuestions.isNotEmpty;
+
+  /// 交卷入口（type=='submit' 表示用户已确认，跳过未答确认弹窗）
+  Future<void> submitExamPaper(String type) async {
+    if (_submitLock) return;
+    _submitLock = true;
+    _submitLockTimer?.cancel();
+    _submitLockTimer = Timer(const Duration(milliseconds: 18000), () {
+      _submitLock = false;
+      _submitLockTimer = null;
+    });
+    bridge.showLoading('提交中...');
+
+    try {
+      await _submitCurrentQuestionBeforeSubmitExamPaper();
+
+      final counts = getAnswerCardExtraCounts();
+      if (counts.unansweredCount > 0) {
+        bridge.setAnswerSheetVisible(false);
+        getConquerPopupCon(
+          'submit',
+          counts.unansweredCount,
+          confirmText: '确定',
+          isConfirm: true,
+          confirmAction: 'showAnswerSheet',
+          title: '暂时无法提交',
+          subtitle:
+              '您还有<span class="spans" style="font-size:32rpx;color:#3D7DF5;"> ${counts.unansweredCount}</span> 道题未作答',
+        );
+        return;
+      }
+      if (counts.pendingNotesCount > 0) {
+        bridge.setAnswerSheetVisible(false);
+        getConquerPopupCon(
+          'submit',
+          counts.pendingNotesCount,
+          confirmText: '确定',
+          isConfirm: true,
+          confirmAction: 'showAnswerSheet',
+          title: '暂时无法提交',
+          subtitle:
+              '您还有<span class="spans" style="font-size:32rpx;color:#3D7DF5;"> ${counts.pendingNotesCount}</span> 道题待补笔记',
+        );
+        return;
+      }
+
+      final unprocessedList = batchProcessQuestions();
+      final noAnswer = unprocessedList.where((res) {
+        final userAnswer = res['userAnswer'];
+        final answerImgs = res['answerImgs'];
+        return (userAnswer == null || '$userAnswer'.isEmpty) &&
+            !(answerImgs is List && answerImgs.isNotEmpty);
+      }).toList();
+      if (!(noAnswer.isEmpty || type == 'submit')) {
+        bridge.setAnswerSheetVisible(false);
+        getConquerPopupCon('submit', noAnswer.length);
+        return;
+      }
+
+      if (_failedSubmitRequestMap.isNotEmpty) {
+        bridge.showLoading('提交中...');
+      }
+      final retryResult = await retryFailedSubmitRequests();
+      if (!retryResult.success) {
+        bridge.hideLoading();
+        bridge.toast('网络异常，仍有 ${retryResult.failedCount} 道题提交失败，请稍后重试');
+        await Future<void>.delayed(const Duration(milliseconds: 1500));
+        return;
+      }
+
+      await Future<void>.delayed(const Duration(milliseconds: 2000));
+      bridge.showLoading('提交中...');
+      bridge.hideLoading();
+      return;
+      final res = await _api.recordSubmit(session.recordId);
+      bridge.setAnswerSheetVisible(false);
+      if (_field(res, 'code') == -1 || _field(res, 'code') == '-1') {
+        bridge.hideLoading();
+        final message = '${_field(res, 'message') ?? ''}';
+        Future<void>.delayed(const Duration(milliseconds: 500), () {
+          if (message.isNotEmpty) bridge.toast(message);
+        });
+        return;
+      }
+      final aiGradingCount = _field(res, 'aiGradingCount');
+      if (aiGradingCount != null &&
+          aiGradingCount != 0 &&
+          '$aiGradingCount' != '0') {
+        getConquerPopupCon('grading', null);
+      } else {
+        bridge.redirectToReport(session.recordId, session.packId);
+      }
+    } catch (_) {
+      bridge.hideLoading();
+      Future<void>.delayed(const Duration(milliseconds: 500), () {
+        bridge.toast('网络请求失败，请检查网络');
+      });
+    } finally {
+      _submitLockTimer?.cancel();
+      _submitLockTimer = null;
+      bridge.hideLoading();
+      _submitLock = false;
+    }
+  }
+
+  dynamic _field(dynamic resp, String key) {
+    if (resp is Map) {
+      if (resp[key] != null) return resp[key];
+      final data = resp['data'];
+      if (data is Map && data[key] != null) return data[key];
+    }
+    return null;
+  }
+
+  /// 弹窗确认按钮分发（对标 handlePopupConfirm）
+  void handlePopupConfirm(ConquerPopupConfig config) {
+    if (config.type == 'grading') {
+      bridge.navigateBack(delta: 3);
+    } else if (config.type == 'submit') {
+      if (config.confirmAction == 'showAnswerSheet') {
+        bridge.hideConquerPopup();
+        bridge.setAnswerSheetVisible(true);
+        return;
+      }
+      submitExamPaper('submit');
+    } else if (config.type == 'time' || config.type == 'note') {
+      bridge.hideConquerPopup();
+    }
+  }
+
+  /// 最低作答时长提示（返回 true 表示拦截跳题/交卷）
+  bool openTimePopupIfNeeded() {
+    final info = session.currentQuestion;
+    if (info == null) return false;
+    if (!session.isView &&
+        info.planTimeSecond > 0 &&
+        !info.isFinishPlanTime) {
+      getConquerPopupCon('time', formatTime(info.planTimeSecond));
+      return true;
+    }
+    return false;
+  }
+
+  /// 上传笔记提示（返回 true 表示拦截跳题/交卷）
+  bool openUploadNotesPopupIfNeeded() {
+    final info = session.currentQuestion;
+    if (info != null && info.isUploadNotes && info.notes.isEmpty) {
+      getConquerPopupCon('note', null);
+      return true;
+    }
+    return false;
+  }
+}

lib/features/conquerPackage/classExercises/controllers/exercise_timing.dart

@@ -0,0 +1,171 @@
+/// ============================================================
+/// 【课堂习题 · 计时】（1:1 迁移 Vue timing.js / exerciseTiming.js）
+///
+/// - formatElapsed / formatTime / formatDuration 与 Vue 纯函数一致；
+/// - ExerciseTiming 对应 createTiming（每秒一次 onTick）；
+/// - getDisplayPlanTimeSecond 对应 exerciseTiming.js 的同名导出：
+///   优先用本地缓存的剩余秒数 NewPlanTimeSecond，否则用
+///   planTimeSecond - answerTimeSecond；<=0 时置 ISFinishPlanTime=true。
+/// ============================================================
+library;
+
+import 'dart:async';
+
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+
+String _pad2(int n) => n < 10 ? '0$n' : '$n';
+
+/// mm:ss（不足 1 小时）/ hh:mm:ss（达到 1 小时）
+String formatElapsed(int ms) {
+  final safeMs = ms < 0 ? 0 : ms;
+  final totalSeconds = safeMs ~/ 1000;
+
+  if (totalSeconds < 3600) {
+    final mm = totalSeconds ~/ 60;
+    final ss = totalSeconds % 60;
+    return '${_pad2(mm)}:${_pad2(ss)}';
+  }
+
+  final hh = totalSeconds ~/ 3600;
+  final mm = (totalSeconds % 3600) ~/ 60;
+  final ss = totalSeconds % 60;
+  return '${_pad2(hh)}:${_pad2(mm)}:${_pad2(ss)}';
+}
+
+/// 建议学习时长文案：N秒 / N分钟 / N小时 / Nd
+String formatTime(int seconds) {
+  final t = seconds < 0 ? 0 : seconds;
+  if (t < 60) return '$t秒';
+  if (t < 3600) return '${t ~/ 60}分钟';
+  if (t < 86400) return '${t ~/ 3600}小时';
+  return '${t ~/ 86400}d';
+}
+
+/// 已学习时长文案：N秒 / N分钟N秒 / N小时N分钟 / Nd
+String formatDuration(int seconds) {
+  final t = seconds < 0 ? 0 : seconds;
+  if (t < 60) return '$t秒';
+  if (t < 3600) {
+    final m = t ~/ 60;
+    final s = t % 60;
+    return '$m分钟$s秒';
+  }
+  if (t < 86400) {
+    final h = t ~/ 3600;
+    final m = (t % 3600) ~/ 60;
+    return '$h小时$m分钟';
+  }
+  return '${t ~/ 86400}d';
+}
+
+/// 计时回调载荷（对标 JS {elapsedMs,text,running}）
+class TimingTick {
+  const TimingTick({
+    required this.elapsedMs,
+    required this.text,
+    required this.running,
+  });
+
+  final int elapsedMs;
+  final String text;
+  final bool running;
+}
+
+/// 页面计时器（对应 createTiming）。
+///
+/// 注意与 JS 保持一致的几个细节：
+/// - pause() 不取消周期定时器，仅冻结累计值（running=false），
+///   周期回调继续按冻结值触发；
+/// - start() 已在计时时直接返回；
+/// - stop() 才真正取消定时器；
+/// - reset() 不清运行状态，只把累计值归零。
+class ExerciseTiming {
+  ExerciseTiming({this.onTick, this.intervalMs = 1000});
+
+  final void Function(TimingTick tick)? onTick;
+  final int intervalMs;
+
+  Timer? _timer;
+  bool _running = false;
+  int _lastStartAt = 0;
+  int _elapsedMs = 0;
+
+  void _emit() {
+    final cb = onTick;
+    if (cb == null) return;
+    final now = DateTime.now().millisecondsSinceEpoch;
+    final current = _running ? _elapsedMs + (now - _lastStartAt) : _elapsedMs;
+    cb(TimingTick(
+      elapsedMs: current,
+      text: formatElapsed(current),
+      running: _running,
+    ));
+  }
+
+  void start() {
+    if (_timer != null) return;
+    _running = true;
+    _lastStartAt = DateTime.now().millisecondsSinceEpoch;
+    _emit();
+    _timer = Timer.periodic(Duration(milliseconds: intervalMs), (_) => _emit());
+  }
+
+  void pause() {
+    if (!_running) return;
+    _elapsedMs += DateTime.now().millisecondsSinceEpoch - _lastStartAt;
+    _running = false;
+    _emit();
+  }
+
+  void resume() {
+    if (_running) return;
+    _running = true;
+    _lastStartAt = DateTime.now().millisecondsSinceEpoch;
+    _emit();
+  }
+
+  void toggle() {
+    if (_running) {
+      pause();
+    } else {
+      resume();
+    }
+  }
+
+  void stop() {
+    _timer?.cancel();
+    _timer = null;
+    _running = false;
+  }
+
+  void reset() {
+    _elapsedMs = 0;
+    _lastStartAt = DateTime.now().millisecondsSinceEpoch;
+    _emit();
+  }
+
+  int getElapsedMs() {
+    final now = DateTime.now().millisecondsSinceEpoch;
+    return _running ? _elapsedMs + (now - _lastStartAt) : _elapsedMs;
+  }
+
+  bool isRunning() => _running;
+}
+
+/// 单题倒计时展示秒数（对应 getDisplayPlanTimeSecond）。
+///
+/// NewPlanTimeSecond 是切题/暂停前本地缓存的“剩余秒数”，不是总时长；
+/// 首次进入题目没有缓存时，用总时长 - 后端累计作答时长。
+/// 结果 <=0 时直接视为倒计时结束并回写 ISFinishPlanTime。
+int getDisplayPlanTimeSecond(QuestionModel? q) {
+  if (q == null) return 0;
+  final hasLocalRemain = q.m['NewPlanTimeSecond'] != null;
+  final remain = hasLocalRemain
+      ? (q.newPlanTimeSecond ?? 0)
+      : q.planTimeSecond - q.answerTimeSecond;
+  if (remain <= 0) {
+    q.isFinishPlanTime = true;
+    return 0;
+  }
+  return remain;
+}

lib/features/conquerPackage/classExercises/controllers/exercise_timing_handlers.dart

@@ -0,0 +1,123 @@
+/// ============================================================
+/// 【课堂习题 · 顶部计时与暂停联动】
+///
+/// 1:1 迁移 Vue exerciseTiming.js（createTimingHandlers）：
+/// - 顶部计时（可暂停 / 继续），与倒计时组件联动；
+/// - 按 recordId 缓存 / 恢复计时进度（实际逻辑按题目 answerTimeSecond
+///   汇总，SP 缓存代码在 Vue 端已注释，这里仍保留 persist 写缓存）；
+/// - 暂停时统计剩余未答题数，驱动暂停弹窗。
+/// ============================================================
+library;
+
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_session.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_submit.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_timing.dart';
+
+class ExerciseTimingHandlers {
+  ExerciseTimingHandlers({
+    required this.session,
+    required this.bridge,
+    required this.submit,
+    required this.isPausePopupVisible,
+    this.onUiTick,
+  }) {
+    timing = ExerciseTiming(onTick: (tick) {
+      final total = timingOffsetMs + tick.elapsedMs;
+      timingText = formatElapsed(total);
+      timingRunning = tick.running;
+      // 页面层据此刷新顶部计时胶囊（对标 Vue ref 赋值触发渲染）
+      onUiTick?.call();
+    });
+  }
+
+  final ExerciseSession session;
+  final ExerciseUiBridge bridge;
+  final ExerciseSubmitHandlers submit;
+
+  /// 每次秒表 tick 后回调页面刷新 UI（计时文案）
+  final void Function()? onUiTick;
+
+  /// 暂停弹窗当前是否展示（对标 showPausePopup.value 读取）
+  final bool Function() isPausePopupVisible;
+
+  late final ExerciseTiming timing;
+
+  /// 顶部计时文案
+  String timingText = '00:00';
+
+  /// 计时是否运行中
+  bool timingRunning = true;
+
+  /// 累计偏移（恢复的已学时长）
+  int timingOffsetMs = 0;
+
+  /// 暂停时剩余未答题数
+  int remainingCount = 0;
+
+  /// 恢复计时缓存（Vue 端实际使用题目 answerTimeSecond 汇总）
+  void restoreTimingCache() {
+    try {
+      var totalStudyTime = 0;
+      for (final item in session.questions) {
+        totalStudyTime += item.answerTimeSecond;
+      }
+      if (totalStudyTime != 0) {
+        timingOffsetMs = totalStudyTime * 1000;
+        timingText = formatElapsed(totalStudyTime * 1000);
+      } else {
+        timingOffsetMs = 0;
+        timingText = '00:00';
+      }
+    } catch (_) {
+      timingOffsetMs = 0;
+      timingText = '00:00';
+    }
+  }
+
+  /// 持久化计时进度（view 模式 / 无 recordId 不写）
+  Future<void> persistTimingCache() async {
+    final keyId = session.recordId;
+    if (session.isView || keyId.isEmpty) return;
+    final elapsedMs = timingOffsetMs + timing.getElapsedMs();
+    try {
+      final prefs = await SharedPreferences.getInstance();
+      await prefs.setString(
+        'classExercises_timing_$keyId',
+        // 与 Vue 一致：历史上存的是 JSON 字符串
+        '{"elapsedMs":$elapsedMs}',
+      );
+    } catch (_) {
+      // 忽略落盘失败
+    }
+  }
+
+  /// 切换计时（对标 toggleTiming）
+  void toggleTiming() {
+    if (isPausePopupVisible()) return;
+    if (timing.isRunning()) {
+      timing.pause();
+      session.countDownKey?.currentState?.pause();
+      bridge.setPausePopupVisible(true);
+
+      final list = submit.batchProcessQuestions();
+      remainingCount =
+          list.where((res) => res['answered'] != true).length;
+      bridge.notifyListeners();
+      return;
+    }
+    timing.resume();
+    session.countDownKey?.currentState?.start();
+  }
+
+  /// 关闭暂停弹窗并继续（对标 handlePausePopupClose）
+  void handlePausePopupClose() {
+    bridge.setPausePopupVisible(false);
+    if (!timing.isRunning()) timing.resume();
+    session.countDownKey?.currentState?.start();
+  }
+
+  void dispose() {
+    timing.stop();
+  }
+}

lib/features/conquerPackage/classExercises/exercise_question_view.dart

@@ -0,0 +1,998 @@
+/// ============================================================
+/// 【ExerciseQuestionView】课后练习单题页
+/// （1:1 迁移 Vue pages/conquerPackage/classExercises/classExercisesPage.vue）
+///
+/// 结构（与 Vue 模板一致）：
+///   source → 题型标签 → 题干合并音视频 → 题干（含 #subquestion-N 锚点）
+///   → 主体（客观选项 / 填空输入或图片作答 / 主观图片作答）
+///   → view 态 childs 解析列表 → 大题解析盒 → 底部笔记 Upload
+///   → 末尾 80.h + panelHeight 白色占位
+///
+/// 交互（与 Vue emit / defineExpose 同名同义）：
+///   - onSelectAnswer(payload)            → selectAnswer
+///   - onUpdateAnswer(String)             → UpdateAnswer
+///   - onNotesChange(items)               → handleNotesChange
+///   - onSubQuestionChange(payload)       → subQuestionChange
+///   - onStemLinkTap(index)               → 题干锚点点击，由父级驱动复合题面板
+///   - `GlobalKey<ExerciseQuestionViewState>` 暴露：
+///       UploadLectureNotes() / getImageList(type) /
+///       setActiveSubIndex(i) / pauseMedia() / scrollToOffset()
+///
+/// 说明：
+///   - 父级应以 ValueKey(data.id) 挂载，切题整体重建；
+///   - 锚点滚动：#subquestion-N 点击后 onTapUrl 返回 false，交由
+///     flutter_widget_from_html 内置 AnchorRegistry 滚动（等价 Vue
+///     emitScrollToTop → outer scroll-view 定位）；面板 tab 切换等
+///     外部回灌走 scrollToAnchor（编程式标记位，不再回调父级）；
+///   - isActive/isAdjacent 变 false 暂停全部音视频（递归 visitChildElements）。
+/// ============================================================
+library;
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart';
+import 'package:new_learn/core/components/audio_player_card.dart';
+import 'package:new_learn/core/components/media_pause_scope.dart';
+import 'package:new_learn/core/components/rich_text_content.dart';
+import 'package:new_learn/core/components/upload.dart';
+import 'package:new_learn/core/components/video_player_view.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+import 'package:new_learn/core/utils/question/tag_color.dart';
+
+import 'models/question_data_adapter.dart';
+import 'models/question_model.dart';
+import 'widgets/answer_view.dart';
+import 'widgets/exercise_styles.dart';
+import 'widgets/obj_options.dart';
+
+/// 对应 Vue props.typeMode
+enum ExerciseQuestionMode { edit, view }
+
+/// 对应 emit('subQuestionChange', {subIndex, sort})
+class SubQuestionChangePayload {
+  const SubQuestionChangePayload({required this.subIndex, this.sort = 0});
+
+  final int subIndex;
+  final dynamic sort;
+}
+
+typedef QuestionSelectCallback = void Function(Map<String, dynamic> payload);
+typedef QuestionUpdateAnswerCallback = void Function(String value);
+typedef QuestionNotesCallback = void Function(List<UploadItem> items);
+typedef QuestionSubChangeCallback = void Function(SubQuestionChangePayload payload);
+typedef QuestionStemLinkCallback = void Function(int subIndex);
+
+class ExerciseQuestionView extends StatefulWidget {
+  const ExerciseQuestionView({
+    super.key,
+    required this.data,
+    this.isActive = false,
+    this.isAdjacent = false,
+    this.mode = ExerciseQuestionMode.edit,
+    this.activeSubIndex = 0,
+    required this.panelHeight,
+    this.onSelectAnswer,
+    this.onUpdateAnswer,
+    this.onNotesChange,
+    this.onSubQuestionChange,
+    this.onStemLinkTap,
+  });
+
+  /// 题目数据（与 questionsList 元素同一 Map 引用）
+  final QuestionModel data;
+
+  final bool isActive;
+  final bool isAdjacent;
+  final ExerciseQuestionMode mode;
+
+  /// 当前激活子题下标（外部回灌）
+  final int activeSubIndex;
+
+  /// 复合题浮层当前高度（逻辑像素），用于末尾占位。
+  /// 用 ValueListenable 接收：拖拽面板时只重建占位盒，不整页重建。
+  final ValueListenable<double> panelHeight;
+
+  final QuestionSelectCallback? onSelectAnswer;
+  final QuestionUpdateAnswerCallback? onUpdateAnswer;
+  final QuestionNotesCallback? onNotesChange;
+  final QuestionSubChangeCallback? onSubQuestionChange;
+  final QuestionStemLinkCallback? onStemLinkTap;
+
+  @override
+  ExerciseQuestionViewState createState() => ExerciseQuestionViewState();
+}
+
+class ExerciseQuestionViewState extends State<ExerciseQuestionView> {
+  final ScrollController _scrollController = ScrollController();
+
+  /// 本题媒体暂停注册表：子树内播放器自动注册，切页时直接暂停，
+  /// 不再运行时递归 visitChildElements（避免 element 树更新期断言）
+  final MediaPauseRegistry _mediaRegistry = MediaPauseRegistry();
+
+  /// 题干 HtmlWidget（锚点滚动用）
+  final GlobalKey<HtmlWidgetState> _stemHtmlKey = GlobalKey<HtmlWidgetState>();
+
+  /// 图片作答 Upload（uploadAnswerRef）
+  final GlobalKey<UploadState> _answerUploadKey = GlobalKey<UploadState>();
+
+  /// 笔记 Upload（uploadRef）
+  final GlobalKey<UploadState> _notesKey = GlobalKey<UploadState>();
+
+  late int _activeSubIndex = widget.activeSubIndex;
+
+  /// 图片作答缓存（惰性初始化，保持引用稳定，避免 Upload 被重置）
+  List<UploadItem>? _answerItems;
+
+  /// 笔记图片缓存
+  List<UploadItem>? _notesItems;
+
+  TextEditingController? _blankController;
+
+  /// 本次锚点切换是否来自题干点击（点击已由 fwfh 滚动，外部回灌跳过）
+  int? _tapDrivenIndex;
+
+  /// 编程式锚点滚动标记（scrollToAnchor 期间不要再驱动面板）
+  bool _programmaticAnchor = false;
+
+  bool get _isView => widget.mode == ExerciseQuestionMode.view;
+  bool get _isEdit => widget.mode == ExerciseQuestionMode.edit;
+
+  // ===================== 生命周期 =====================
+
+  @override
+  void initState() {
+    super.initState();
+    // 对标 watch(activeSubIndex, immediate: true)：挂载即尝试定位锚点
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (mounted) _scrollToAnchorExternal(widget.activeSubIndex);
+    });
+  }
+
+  @override
+  void didUpdateWidget(covariant ExerciseQuestionView oldWidget) {
+    super.didUpdateWidget(oldWidget);
+
+    // 正常父级以 ValueKey(data.id) 重建；兜底处理
+    if (widget.data.id != oldWidget.data.id) {
+      _activeSubIndex = 0;
+      _answerItems = null;
+      _notesItems = null;
+      pauseMedia();
+    }
+
+    // 对标 watch(isActive) / watch(isAdjacent)
+    if ((widget.isActive != oldWidget.isActive && !widget.isActive) ||
+        (widget.isAdjacent != oldWidget.isAdjacent && !widget.isAdjacent)) {
+      pauseMedia();
+    }
+
+    // 对标 watch(() => props.activeSubIndex)
+    if (widget.activeSubIndex != _activeSubIndex &&
+        widget.activeSubIndex != oldWidget.activeSubIndex) {
+      final ext = widget.activeSubIndex;
+      if (ext == _tapDrivenIndex) {
+        // 点击触发的回灌，fwfh 已在点击时滚动
+        _tapDrivenIndex = null;
+      } else {
+        WidgetsBinding.instance.addPostFrameCallback((_) {
+          if (mounted) _scrollToAnchorExternal(ext);
+        });
+      }
+      setState(() => _activeSubIndex = ext);
+    }
+  }
+
+  @override
+  void dispose() {
+    _scrollController.dispose();
+    _blankController?.dispose();
+    super.dispose();
+  }
+
+  // ===================== 对外暴露（对标 defineExpose） =====================
+
+  /// 触发笔记选图（对标 UploadLectureNotes → uploadRef.chooseImage）
+  Future<void> uploadLectureNotes() async {
+    return _notesKey.currentState?.chooseImage();
+  }
+
+  /// 取图片列表（对标 getImageList）
+  /// - type == 'uploadAnswerRef'：作答图，兜底 safeImageAnswerList(userAnswer)
+  /// - 其它：笔记图，兜底 safeImageAnswerList(notes)
+  List<dynamic> getImageList(String type) {
+    if (type == 'uploadAnswerRef') {
+      final imageList = _answerUploadKey.currentState?.getImageList();
+      if (imageList != null && imageList.isNotEmpty) return imageList;
+      return QuestionDataAdapter.safeImageAnswerList(widget.data.userAnswer);
+    }
+    final imageList = _notesKey.currentState?.getImageList();
+    if (imageList != null && imageList.isNotEmpty) return imageList;
+    return QuestionDataAdapter.safeImageAnswerList(widget.data.m['notes']);
+  }
+
+  /// 对标 setActiveSubIndex：clamp + emit subQuestionChange
+  void setActiveSubIndex(int subIndex) {
+    final total = widget.data.subQuestions.length;
+    final next = total > 0
+        ? subIndex.clamp(0, total - 1)
+        : 0;
+    if (next == _activeSubIndex) return;
+    setState(() => _activeSubIndex = next);
+    final sort = widget.data.subAt(next)?.sort ?? 0;
+    widget.onSubQuestionChange
+        ?.call(SubQuestionChangePayload(subIndex: next, sort: sort));
+  }
+
+  /// 暂停视图内全部音视频（对标 pauseMedia）。
+  /// 直接调注册表：播放器挂载/卸载已自动维护成员，
+  /// 无需运行时递归遍历 element 树，build/翻页动画阶段调用同样安全。
+  void pauseMedia() {
+    _mediaRegistry.pauseAll();
+  }
+
+  /// 父级直接驱动滚动（对标 emit scrollToOffset → outer scroll-view）
+  void scrollToOffset(double offset) {
+    if (!_scrollController.hasClients) return;
+    final max = _scrollController.position.maxScrollExtent;
+    _scrollController.jumpTo(offset.clamp(0, max));
+  }
+
+  // ===================== 锚点滚动 =====================
+
+  /// 题干链接点击：驱动面板 + 交回 fwfh 滚动锚点（return false）
+  Future<bool> _onStemTap(String url) async {
+    if (url.startsWith('#subquestion-')) {
+      final idx = int.tryParse(url.replaceFirst('#subquestion-', ''));
+      if (idx != null && idx >= 0) {
+        _tapDrivenIndex = idx;
+        widget.onStemLinkTap?.call(idx);
+        // false：fwfh 继续执行 AnchorRegistry.ensureVisible
+        return false;
+      }
+    }
+    // 其余链接一律拦截（RichTextContent 默认行为）
+    return true;
+  }
+
+  /// 外部回灌（面板 tab / 切题恢复）：只滚动，不再回调 onStemLinkTap
+  void _scrollToAnchorExternal(int index, {int retries = 4}) {
+    bool done = false;
+    void run(int left) async {
+      if (!mounted || done) return;
+      _programmaticAnchor = true;
+      bool ok = false;
+      try {
+        ok = await _stemHtmlKey.currentState
+                ?.scrollToAnchor('subquestion-$index') ??
+            false;
+      } finally {
+        _programmaticAnchor = false;
+      }
+      if (ok) {
+        done = true;
+        return;
+      }
+      if (left > 0 && mounted) {
+        Future.delayed(const Duration(milliseconds: 120), () {
+          if (mounted) run(left - 1);
+        });
+      }
+    }
+
+    run(retries);
+  }
+
+  // ===================== 作答回调 =====================
+
+  /// 对标 selectOption（父级写 current.userAnswer = payload.userAnswer）
+  void _selectOption(Map<String, dynamic> payload) {
+    if (!_isEdit) return;
+    widget.onSelectAnswer?.call(payload);
+  }
+
+  /// 对标 onInputBlank：写 data.userAnswer + 第一个 child，emit 纯文本
+  void _onInputBlank(String value) {
+    if (!_isEdit) return;
+    widget.data.userAnswer = value;
+    final childs = widget.data.childs;
+    if (childs.isNotEmpty) {
+      childs.first.userAnswer = value;
+    }
+    widget.onUpdateAnswer?.call(value);
+  }
+
+  /// 对标 handleUploadChange：emit UpdateAnswer(JSON.stringify(e))
+  void _onAnswerUploadChanged(List<UploadItem> items) {
+    _answerItems = List<UploadItem>.from(items);
+    widget.onUpdateAnswer
+        ?.call(QuestionDataAdapter.uploadItemsToJson(items));
+  }
+
+  /// 对标 handleNotesChange
+  void _onNotesChanged(List<UploadItem> items) {
+    _notesItems = List<UploadItem>.from(items);
+    widget.onNotesChange?.call(items);
+  }
+
+  List<UploadItem> get _answerUploadItems {
+    return _answerItems ??= QuestionDataAdapter.toUploadItems(
+      QuestionDataAdapter.parseImageAnswerList(widget.data.userAnswer),
+    );
+  }
+
+  List<UploadItem> get _notesUploadItems {
+    return _notesItems ??= QuestionDataAdapter.toUploadItems(
+      widget.data.notes,
+    );
+  }
+
+  // ===================== Build =====================
+
+  @override
+  Widget build(BuildContext context) {
+    // 题干渲染数据（对标 stemRenderData / mergedAudios / mergedVideos）
+    final stemMedia =
+        QuestionDataAdapter.buildStemMedia(widget.data, _activeSubIndex);
+
+    final children = <Widget>[
+      // ---- source ----
+      if (widget.data.source.isNotEmpty)
+        Padding(
+          padding: EdgeInsets.only(bottom: 10.h),
+          child: Text(
+            widget.data.source,
+            style: TextStyle(fontSize: 14.sp, color: ExerciseColors.subtitle),
+          ),
+        ),
+
+      // ---- 题型标签 ----
+      Padding(
+        padding: EdgeInsets.only(bottom: 10.h),
+        child: _buildTypeLabel(),
+      ),
+
+      // ---- 题干合并音视频 ----
+      for (final audio in stemMedia.audios)
+        Padding(
+          padding: EdgeInsets.symmetric(vertical: 10.h),
+          child: AudioPlayerCard(
+            url: '${audio['audioUrl'] ?? audio['url'] ?? ''}',
+          ),
+        ),
+      for (final video in stemMedia.videos)
+        Padding(
+          padding: EdgeInsets.symmetric(vertical: 10.h),
+          child: VideoPlayerView(
+            url: '${video['videoUrl'] ?? video['url'] ?? ''}',
+          ),
+        ),
+
+      // ---- 题干（line-height 58rpx，margin-b 30rpx）----
+      
+      Padding(
+        padding: EdgeInsets.only(bottom: 15.h),
+        child: RichTextContent(
+          htmlWidgetKey: _stemHtmlKey,
+          html: stemMedia.content,
+          textStyle: TextStyle(
+            fontSize: 16.sp,
+            color: const Color(0xFF333333),
+            height: 58 / 32,
+          ),
+          onTapUrl: (url) async {
+            // 编程式滚动期间：锚点链接不拦截（让 fwfh 滚动），也不驱动面板
+            if (_programmaticAnchor && url.startsWith('#subquestion-')) {
+              return false;
+            }
+            return _onStemTap(url);
+          },
+        ),
+      ),
+    ];
+
+    // ---- 主体（v-if="!data.hasOptionChildrenQuestion"）----
+    if (!widget.data.hasOptionChildrenQuestion) {
+      _buildBody(children);
+    }
+
+    // ---- childs 解析列表（view，且非 hasOptionChildrenQuestion）----
+    if (!widget.data.hasOptionChildrenQuestion &&
+        widget.data.childs.isNotEmpty &&
+        _isView) {
+      _buildChildsAnalysis(children);
+    }
+
+    // ---- 大题解析盒（仅 view）----
+    if (_isView) {
+      _appendMainAnalysis(children);
+    }
+
+    // ---- 底部笔记 Upload ----
+    children.add(Padding(
+      padding: EdgeInsets.only(top: isPadDevice(context) ? 40.h : 30.h),
+      child: Upload(
+        key: _notesKey,
+        type: UploadType.questions,
+        ids: widget.data.id,
+        mode: _isEdit ? UploadMode.edit : UploadMode.view,
+        initialImageList: _notesUploadItems,
+        onChanged: _onNotesChanged,
+      ),
+    ));
+
+    return MediaPauseScope(
+      registry: _mediaRegistry,
+      child: ClipRRect(
+        borderRadius: BorderRadius.vertical(top: Radius.circular(14.r)),
+        child: ColoredBox(
+          color: Colors.white,
+          child: SingleChildScrollView(
+            controller: _scrollController,
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                // 对标 .classExercises-main（白底、上圆角 28rpx、padding 40rpx 28rpx）
+                Container(
+                  width: double.infinity,
+                  color: Colors.white,
+                  padding: EdgeInsets.symmetric(horizontal: 14.w, vertical: 20.h),
+                  child: Column(
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: children,
+                  ),
+                ),
+                // 对标末尾占位 calc(160rpx + panelHeight px)。
+                // 仅占位盒随面板高度重建，拖拽不触发整页重建。
+                ValueListenableBuilder<double>(
+                  valueListenable: widget.panelHeight,
+                  builder: (_, h, __) => Container(
+                    width: double.infinity,
+                    height: 80.h + h,
+                    color: Colors.white,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  /// 题型标签（对标 .classExercises-main-label + getTagColor）
+  Widget _buildTypeLabel() {
+    final gradient = getTagColor(widget.data.questionTypeName);
+    return Container(
+      height: 21.h,
+      padding: EdgeInsets.symmetric(horizontal: 6.w),
+      decoration: BoxDecoration(
+        gradient: gradient.gradient,
+        borderRadius: BorderRadius.circular(6.r),
+      ),
+      child: Center(
+        widthFactor: 1,
+        child: Text(
+          widget.data.questionTypeName,
+          style: TextStyle(
+            fontSize: 12.sp,
+            color: Colors.white,
+            height: 1,
+          ),
+        ),
+      ),
+    );
+  }
+
+  // ===================== 主体分支 =====================
+
+  void _buildBody(List<Widget> children) {
+    final data = widget.data;
+
+    // 分支 1：客观题（options 非空）
+    if (data.options.isNotEmpty) {
+      if (_isEdit) {
+        children.add(ObjOptions(
+          options: data.options,
+          questionType: data.questionTypes,
+          mode: ObjOptionMode.edit,
+          answer: data.userAnswer,
+          onChanged: _selectOption,
+        ));
+      } else {
+        children.add(ObjOptions(
+          options: data.options,
+          questionType: data.questionTypes,
+          mode: ObjOptionMode.view,
+          answerData: ObjOptionAnswerData(
+            correctAnswer: data.correctAnswer,
+            myAnswer: data.userAnswer,
+          ),
+          onChanged: _selectOption,
+        ));
+        children.add(Padding(
+          padding: EdgeInsets.only(bottom: 10.h),
+          child: ObjectiveAnswerView(
+            answerStatus: data.answerStatus,
+            userAnswer: data.userAnswer,
+            correctAnswer: data.correctAnswer,
+          ),
+        ));
+      }
+      return;
+    }
+
+    // 分支 2：填空题
+    if (data.questionTypes == 'tiankongti') {
+      _buildBlankBody(children);
+      return;
+    }
+
+    // 分支 3：其他主观题（问答题等，图片作答）
+    _buildSubjectiveBody(children);
+  }
+
+  /// 填空题主体（对标 v-else-if="questionTypes == 'tiankongti'"）
+  void _buildBlankBody(List<Widget> children) {
+    final data = widget.data;
+
+    if (_isView) {
+      children.add(_buildStatusStrip(data));
+    }
+
+    if (data.isFillblankItemUpload == 1) {
+      // 图片作答填空题（注意：单题页 maxCount = 10）
+      children.add(Padding(
+        padding: EdgeInsets.only(top: 10.h),
+        child: Upload(
+          key: _answerUploadKey,
+          title: '上传图片作答',
+          maxCount: 10,
+          type: UploadType.aiGrading,
+          ids: data.id,
+          mode: _isEdit ? UploadMode.edit : UploadMode.view,
+          initialImageList: _answerUploadItems,
+          onChanged: _onAnswerUploadChanged,
+        ),
+      ));
+      if (_isView) {
+        _appendWrongReasonAdvice(children);
+      }
+    } else if (_isEdit) {
+      children.add(_buildBlankTextarea());
+    }
+
+    if (_isView) {
+      if (data.isFillblankItemUpload != 1) {
+        children.add(Padding(
+          padding: EdgeInsets.only(top: 10.h),
+          child: _buildAnswerTitle('你的答案'),
+        ));
+        children.add(_buildAnswerContent(
+          data.effectiveAnswer,
+          const Color(0xFF495A7A),
+        ));
+      }
+      if (data.hasOptionChildrenQuestion || data.childs.isEmpty) {
+        children.add(_buildAnswerTitle('正确答案'));
+        children.add(_buildAnswerContent(
+          data.correctAnswer.isNotEmpty ? data.correctAnswer : data.answer,
+          ExerciseColors.correct,
+        ));
+      }
+    }
+  }
+
+  /// 主观题主体（问答题等）
+  void _buildSubjectiveBody(List<Widget> children) {
+    final data = widget.data;
+
+    if (_isView) {
+      children.add(_buildStatusStrip(data));
+    }
+
+    children.add(Padding(
+      padding: EdgeInsets.only(top: isPadDevice(context) ? 40.h : 30.h),
+      child: Upload(
+        key: _answerUploadKey,
+        title: '上传图片作答',
+        maxCount: 10,
+        type: UploadType.aiGrading,
+        ids: data.id,
+        mode: _isEdit ? UploadMode.edit : UploadMode.view,
+        initialImageList: _answerUploadItems,
+        onChanged: _onAnswerUploadChanged,
+      ),
+    ));
+
+    if (_isView) {
+      _appendWrongReasonAdvice(children);
+      if (data.hasOptionChildrenQuestion || data.childs.isEmpty) {
+        children.add(_buildAnswerTitle('正确答案'));
+        children.add(_buildAnswerContent(
+          data.correctAnswer.isNotEmpty ? data.correctAnswer : data.answer,
+          ExerciseColors.correct,
+        ));
+      }
+    }
+  }
+
+  /// 错误原因 / 改进建议（仅 view，answerStatus 11/12）
+  void _appendWrongReasonAdvice(List<Widget> children) {
+    final data = widget.data;
+    final status = data.answerStatus;
+    if (status != 11 && status != 12) return;
+
+    final reason = data.wrongReason;
+    if (reason != null && reason.isNotEmpty) {
+      children.add(Padding(
+        padding: EdgeInsets.only(top: 10.h),
+        child: _buildAnswerTitle('错误原因'),
+      ));
+      children.add(_buildPlainContent(reason, const Color(0xFF495A7A)));
+    }
+    final advice = data.wrongAdvice;
+    if (advice != null && advice.isNotEmpty) {
+      children.add(Padding(
+        padding: EdgeInsets.only(top: 10.h),
+        child: _buildAnswerTitle('改进建议'),
+      ));
+      children.add(_buildPlainContent(advice, const Color(0xFF495A7A)));
+    }
+  }
+
+  /// 填空题输入框（对标 textarea.auto-height + .input-text）
+  Widget _buildBlankTextarea() {
+    final controller = _blankController ??= TextEditingController(
+      text: QuestionDataAdapter.singleBlankInputValue(widget.data),
+    );
+    return Container(
+      width: double.infinity,
+      margin: EdgeInsets.only(bottom: 10.h),
+      padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 14.h),
+      decoration: BoxDecoration(
+        color: ExerciseColors.bg,
+        borderRadius: BorderRadius.circular(12.r),
+        border: Border.all(color: ExerciseColors.border, width: 1.w),
+      ),
+      child: TextField(
+        controller: controller,
+        minLines: 1,
+        maxLines: null,
+        style: TextStyle(
+          fontSize: 16.sp,
+          color: const Color(0xFF333333),
+        ),
+        onChanged: _onInputBlank,
+        decoration: InputDecoration(
+          isCollapsed: true,
+          border: InputBorder.none,
+          hintText: '请输入您的答案...',
+          hintStyle: TextStyle(
+            fontSize: 16.sp,
+            color: const Color(0xFF94A5B8),
+          ),
+        ),
+      ),
+    );
+  }
+
+  // ===================== childs 解析列表 =====================
+
+  void _buildChildsAnalysis(List<Widget> children) {
+    final data = widget.data;
+    final childs = data.childs;
+    for (var i = 0; i < childs.length; i++) {
+      final child = childs[i];
+
+      children.add(_buildAnswerTitle(
+        '第${i + 1}${data.questionTypes == 'tiankongti' ? '空' : '题'}',
+        fontSize: 17.sp,
+      ));
+
+      if (child.stem.isNotEmpty) {
+        children.add(Padding(
+          padding: EdgeInsets.only(bottom: 5.h),
+          child: RichTextContent(
+            html: child.stem,
+            textStyle: TextStyle(
+              fontSize: 16.sp,
+              color: const Color(0xFF333333),
+            ),
+          ),
+        ));
+      }
+
+      children.add(_buildAnswerTitle('正确答案'));
+      children.add(_buildAnswerContent(
+        child.correctAnswer.isNotEmpty ? child.correctAnswer : child.answer,
+        ExerciseColors.correct,
+      ));
+
+      final analysis = _analysisText(child);
+      final videos = child.videos;
+      final analysisVideo = child.answerAnalysisVideo;
+      final hasVideo = videos.isNotEmpty &&
+          '${videos.first['videoUrl'] ?? videos.first['url'] ?? ''}'
+              .isNotEmpty;
+      final hasAnalysisVideo =
+          '${analysisVideo?['videoUrl'] ?? ''}'.isNotEmpty;
+
+      if (analysis.isNotEmpty || hasVideo || hasAnalysisVideo) {
+        final content = <Widget>[
+          if (analysis.isNotEmpty) _buildAnalysisBody(analysis),
+          if (hasVideo)
+            for (final video in videos)
+              Padding(
+                padding: EdgeInsets.only(top: 10.h),
+                child: VideoPlayerView(
+                  url: '${video['videoUrl'] ?? video['url'] ?? ''}',
+                ),
+              ),
+          if (hasAnalysisVideo)
+            Padding(
+              padding: EdgeInsets.only(top: 10.h),
+              child: VideoPlayerView(
+                url: '${analysisVideo?['videoUrl'] ?? ''}',
+              ),
+            ),
+        ];
+        children.add(_buildAnalysisBox(content, minHeight: true));
+      }
+    }
+  }
+
+  // ===================== 大题解析盒 =====================
+
+  void _appendMainAnalysis(List<Widget> children) {
+    final data = widget.data;
+    final analysis = _analysisText(data);
+    final audios = data.audios;
+    final videos = data.videos;
+    final analysisVideo = data.answerAnalysisVideo;
+    final hasVideo = videos.isNotEmpty &&
+        '${videos.first['videoUrl'] ?? videos.first['url'] ?? ''}'.isNotEmpty;
+    final hasAnalysisVideo =
+        '${analysisVideo?['videoUrl'] ?? ''}'.isNotEmpty;
+
+    // 对标 v-if：audios || videos.length>0 || answerAnalysisVideo.videoUrl || 解析
+    if (analysis.isEmpty &&
+        audios.isEmpty &&
+        videos.isEmpty &&
+        !hasAnalysisVideo) {
+      return;
+    }
+
+    final content = <Widget>[
+      // 音视频在解析文字之前
+      for (final audio in audios)
+        Padding(
+          padding: EdgeInsets.only(top: 10.h),
+          child: AudioPlayerCard(
+            url: '${audio['audioUrl'] ?? audio['url'] ?? ''}',
+          ),
+        ),
+      if (hasVideo)
+        for (final video in videos)
+          Padding(
+            padding: EdgeInsets.only(top: 10.h),
+            child: VideoPlayerView(
+              url: '${video['videoUrl'] ?? video['url'] ?? ''}',
+            ),
+          ),
+      if (hasAnalysisVideo)
+        Padding(
+          padding: EdgeInsets.only(top: 10.h),
+          child: VideoPlayerView(
+            url: '${analysisVideo?['videoUrl'] ?? ''}',
+          ),
+        ),
+      if (analysis.isNotEmpty) _buildAnalysisBody(analysis),
+    ];
+
+    children.add(_buildAnalysisBox(content, minHeight: true));
+  }
+
+  /// 对标 .analysis-body（32rpx / 1.55 / #1D2B47，margin 20rpx 0 24rpx）
+  Widget _buildAnalysisBody(String analysis) {
+    return Padding(
+      padding: EdgeInsets.only(top: 10.h, bottom: 12.h),
+      child: RichTextContent(
+        html: cleanRichText(analysis),
+        textStyle: TextStyle(
+          fontSize: 16.sp,
+          height: 1.55,
+          color: ExerciseColors.title,
+        ),
+      ),
+    );
+  }
+
+  /// 对标 .analysis-box（单题页 CSS：margin 66rpx 0 40rpx、min-height 200rpx）
+  Widget _buildAnalysisBox(List<Widget> content, {bool minHeight = false}) {
+    return Container(
+      constraints: minHeight ? BoxConstraints(minHeight: 100.h) : null,
+      margin: EdgeInsets.only(top: 33.h, bottom: 20.h),
+      decoration: BoxDecoration(
+        borderRadius: BorderRadius.circular(12.r),
+        // 对标 border-box 渐变 146.26deg
+        gradient: const LinearGradient(
+          begin: Alignment.topLeft,
+          end: Alignment.bottomRight,
+          colors: [Color(0xFF95F8E7), Color(0xFFB9DDFF), Color(0xFF99DCFE)],
+          stops: [0, 0.4952, 1],
+        ),
+      ),
+      padding: EdgeInsets.all(1.5.w),
+      child: Container(
+        decoration: BoxDecoration(
+          borderRadius: BorderRadius.circular(12.r - 1.5.w),
+          // 对标 padding-box 渐变 180deg
+          gradient: const LinearGradient(
+            begin: Alignment.topCenter,
+            end: Alignment.bottomCenter,
+            colors: [Color(0xFFE0F9FF), Colors.white, Colors.white],
+            stops: [0, 0.3, 1],
+          ),
+        ),
+        child: Stack(
+          clipBehavior: Clip.none,
+          children: [
+            Padding(
+              // 对标 padding: 42rpx 28rpx 28rpx
+              padding: EdgeInsets.fromLTRB(14.w, 21.h, 14.w, 14.h),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.stretch,
+                children: content,
+              ),
+            ),
+            // 对标 .analysis-left-bg（156rpx，left -2rpx，top -36rpx）
+            Positioned(
+              left: -1.w,
+              top: -18.h,
+              child: CachedNetworkImage(
+                imageUrl:
+                    ImgUrl.build('/StaticResource/2026-04-16/analysis.png'),
+                width: 78.w,
+                placeholder: (_, _) => SizedBox(width: 78.w),
+                errorWidget: (_, _, _) => SizedBox(width: 78.w),
+              ),
+            ),
+            // 对标 .analysis-right-icon（180rpx，right -10rpx）
+            Positioned(
+              right: -5.w,
+              top: 0,
+              child: CachedNetworkImage(
+                imageUrl: ImgUrl.build(
+                    '/StaticResource/2026-04-08/analysis-right-icon.png'),
+                width: 90.w,
+                placeholder: (_, _) => SizedBox(width: 90.w),
+                errorWidget: (_, _, _) => SizedBox(width: 90.w),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  // ===================== 状态条 / 答案标题 / 答案内容 =====================
+
+  /// 对标 .obj-options-li-view-correct / error
+  Widget _buildStatusStrip(QuestionModel data) {
+    final status = data.answerStatus;
+    final isCorrect = status == 10;
+    final text = isCorrect
+        ? '作答正确'
+        : status == 11
+            ? '作答有误'
+            : status == 12
+                ? '部分正确'
+                : '未作答';
+    final color = isCorrect ? ExerciseColors.correct : ExerciseColors.error;
+    final icon = isCorrect
+        ? '/StaticResource/2026-06-01/correct-icon1780284329572.png'
+        : '/StaticResource/2026-06-01/error-icon1780284292405.png';
+
+    return GradientBorderBox(
+      state: isCorrect ? ExerciseTileState.correct : ExerciseTileState.error,
+      padding: EdgeInsets.all(12.w),
+      child: Row(
+        mainAxisSize: MainAxisSize.max,
+        children: [
+          CachedNetworkImage(
+            imageUrl: ImgUrl.build(icon),
+            width: 20.w,
+            height: 20.w,
+            placeholder: (_, _) => SizedBox(width: 20.w, height: 20.w),
+            errorWidget: (_, _, _) => SizedBox(width: 20.w, height: 20.w),
+          ),
+          SizedBox(width: 10.w),
+          Text(
+            text,
+            style: TextStyle(fontSize: 16.sp, color: color),
+          ),
+        ],
+      ),
+    );
+  }
+
+  /// 对标 .answer-box-title（title-bacs.png，bottom right，119rpx）
+  Widget _buildAnswerTitle(String text, {double? fontSize}) {
+    return Stack(
+      children: [
+        // 标题装饰底图：固定尺寸，位置可调（对标 background-size: 119rpx auto）
+        Positioned(
+          right: 10.w,
+          bottom: 0,
+          child: Image.network(
+            ImgUrl.build('/StaticResource/2026-04-01/title-bacs.png'),
+            width: 59.5.w,
+            height: 9.h,
+            fit: BoxFit.fill,
+            errorBuilder: (_, _, _) => const SizedBox.shrink(),
+          ),
+        ),
+        Padding(
+          padding: EdgeInsets.only(right: 14.w),
+          child: Text(
+            text,
+            style: TextStyle(
+              fontSize: fontSize ?? 15.sp,
+              fontWeight: FontWeight.w600,
+              color: ExerciseColors.title,
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+
+  /// 对标 .answer-box-content（富文本）
+  Widget _buildAnswerContent(String html, Color color) {
+    return Container(
+      width: double.infinity,
+      margin: EdgeInsets.symmetric(vertical: 12.h),
+      padding: EdgeInsets.all(12.w),
+      decoration: BoxDecoration(
+        color: ExerciseColors.bg,
+        borderRadius: BorderRadius.circular(14.r),
+      ),
+      child: RichTextContent(
+        html: cleanRichText(html),
+        textStyle: TextStyle(fontSize: 16.sp, color: color),
+      ),
+    );
+  }
+
+  /// 对标 .answer-box-content（纯文本：wrongReason / wrongAdvice）
+  Widget _buildPlainContent(String text, Color color) {
+    return Container(
+      width: double.infinity,
+      margin: EdgeInsets.symmetric(vertical: 12.h),
+      padding: EdgeInsets.all(12.w),
+      decoration: BoxDecoration(
+        color: ExerciseColors.bg,
+        borderRadius: BorderRadius.circular(14.r),
+      ),
+      child: Text(
+        text,
+        style: TextStyle(fontSize: 16.sp, color: color, height: 1.5),
+      ),
+    );
+  }
+
+  /// 对标 child.answerAnalysis?.analysis || child.analysis || child.answerAnalysis
+  String _analysisText(QuestionModel q) {
+    final raw = q.answerAnalysisRaw;
+    if (raw is Map) {
+      final first = '${raw['analysis'] ?? ''}';
+      if (first.isNotEmpty) return first;
+    }
+    if (q.analysis.isNotEmpty) return q.analysis;
+    if (raw != null && '$raw'.isNotEmpty) return '$raw';
+    return '';
+  }
+}

lib/features/conquerPackage/classExercises/models/question_data_adapter.dart

@@ -0,0 +1,171 @@
+/// ============================================================
+/// 题目数据适配层
+///
+/// 集中处理 QuestionModel 与 UI 组件（RichTextContent / Upload）
+/// 之间的数据转换，对标 Vue classExercisesPage.vue 内的
+/// stemRenderData / mergedAudios / mergedVideos /
+/// getImageAnswerList / getSafeImageAnswerList。
+/// ============================================================
+library;
+
+import 'dart:convert';
+
+import 'package:new_learn/core/components/upload.dart';
+import 'package:new_learn/core/utils/question/extract_media_from_stem.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+
+import 'question_model.dart';
+
+/// 题干渲染数据（已格式化 + 已抽取并合并媒体）
+class StemRenderData {
+  const StemRenderData({
+    required this.content,
+    this.audios = const [],
+    this.videos = const [],
+  });
+
+  final String content;
+  final List<Map<String, dynamic>> audios;
+  final List<Map<String, dynamic>> videos;
+}
+
+class QuestionDataAdapter {
+  QuestionDataAdapter._();
+
+  /// 等价 Vue 页内 stemRenderData + mergedAudios + mergedVideos
+  static StemRenderData buildStemMedia(QuestionModel q, int activeSubIndex) {
+    var stem = q.stem.isEmpty ? '暂无题干' : q.stem;
+    final hasChilds = q.childs.isNotEmpty;
+    final hasBkTags = q.bkTagMetaList.isNotEmpty;
+
+    if (hasChilds || hasBkTags) {
+      final disableHighlight = !hasChilds && q.bkTagMetaList.length == 1;
+      final subQuestions =
+          q.subQuestions.isNotEmpty ? q.subQuestions.map((e) => e.m).toList() : q.childs.map((e) => e.m).toList();
+      // 图片作答（1）不做填空锚点格式化
+      if (q.isFillblankItemUpload != 1) {
+        stem = formatCompoundStem(
+          stem,
+          activeSubIndex,
+          disableHighlight: disableHighlight,
+          subQuestions: subQuestions,
+        );
+      }
+      // 数学学科：数字占位符转圈号
+      if ('${q.baseSubjectId}' == '2') {
+        stem = convertBlankToCircled(stem);
+      }
+    }
+
+    final media = extractMediaFromStem(stem);
+
+    // 合并题干内嵌媒体与 q.audios/q.videos（按 url 去重，保持 JS 顺序）
+    final audios = <Map<String, dynamic>>[];
+    for (final item in [...media.audios, ...q.audios]) {
+      final url = '${item['audioUrl'] ?? item['url'] ?? ''}';
+      if (url.isEmpty) continue;
+      if (audios.any((it) => '${it['audioUrl'] ?? it['url']}' == url)) continue;
+      audios.add(item);
+    }
+
+    final videos = <Map<String, dynamic>>[];
+    for (final item in [...media.videos, ...q.videos]) {
+      final url = '${item['videoUrl'] ?? item['url'] ?? ''}';
+      if (url.isEmpty) continue;
+      if (videos.any((it) => '${it['videoUrl'] ?? it['url']}' == url)) continue;
+      videos.add(item);
+    }
+
+    return StemRenderData(
+      content: media.content.isNotEmpty ? media.content : (q.stem.isNotEmpty ? q.stem : '暂无题干'),
+      audios: audios,
+      videos: videos,
+    );
+  }
+
+  /// 单空填空题输入框值（对标 singleBlankInputValue）
+  static String singleBlankInputValue(QuestionModel q) {
+    final direct = q.userAnswer;
+    if (direct.isNotEmpty) return direct;
+    for (final child in q.childs) {
+      final v = '${child.m['userAnswer'] ?? child.m['myAnswer'] ?? ''}';
+      if (v.isNotEmpty) return v;
+    }
+    return '';
+  }
+
+  /// 严格解析：getImageAnswerList（外层保证是 JSON 数组字符串）
+  static List<Map<String, dynamic>> parseImageAnswerList(dynamic value) {
+    if (value == null || '$value'.isEmpty) return const [];
+    dynamic data;
+    try {
+      data = value is String ? jsonDecode(value) : value;
+    } catch (_) {
+      return const [];
+    }
+    if (data is! List) return const [];
+    return data.whereType<Map>().map((raw) {
+      final item = Map<String, dynamic>.from(raw);
+      item['url'] = item['Url'] ?? item['url'];
+      item['thumbnailUrl'] = item['ThumbnailUrl'] ?? item['thumbnailUrl'];
+      return item;
+    }).toList();
+  }
+
+  /// 安全解析：getSafeImageAnswerList（兜底解析 userAnswer / notes）
+  static List<Map<String, dynamic>> safeImageAnswerList(dynamic value) {
+    if (value == null || '$value'.isEmpty) return const [];
+    dynamic list;
+    try {
+      list = value is String ? jsonDecode(value) : value;
+    } catch (_) {
+      return const [];
+    }
+    if (list is! List) return const [];
+    return list
+        .whereType<Map>()
+        .map((raw) {
+          final item = Map<String, dynamic>.from(raw);
+          final url = '${item['url'] ?? item['Url'] ?? ''}';
+          final thumbnailUrl =
+              '${item['thumbnailUrl'] ?? item['ThumbnailUrl'] ?? url}';
+          return {...item, 'url': url, 'thumbnailUrl': thumbnailUrl};
+        })
+        .where((item) => '${item['url']}'.isNotEmpty)
+        .toList();
+  }
+
+  /// 后端图片数据 → Upload 组件入参
+  static List<UploadItem> toUploadItems(List<Map<String, dynamic>> images) {
+    return images
+        .where((item) => '${item['url']}'.isNotEmpty)
+        .map((item) => UploadItem(
+              id: item['id'],
+              url: '${item['url']}',
+              thumbnailUrl: '${item['thumbnailUrl'] ?? item['url']}',
+            ))
+        .toList();
+  }
+
+  /// Upload 组件当前列表 → 提交用 answerImgs
+  /// （同时带 url/Url、thumbnailUrl/ThumbnailUrl 兼容后端）
+  static List<Map<String, dynamic>> uploadItemsToAnswerImgs(
+    List<UploadItem> items,
+  ) {
+    return items
+        .where((e) => e.url.isNotEmpty)
+        .map((e) => {
+              'url': e.url,
+              'Url': e.url,
+              'thumbnailUrl': e.thumbnailUrl ?? e.url,
+              'ThumbnailUrl': e.thumbnailUrl ?? e.url,
+            })
+        .toList();
+  }
+
+  /// Upload 组件当前列表 → 写回 userAnswer 的 JSON 字符串
+  /// （对标 Vue handleUploadChange: JSON.stringify(e)）
+  static String uploadItemsToJson(List<UploadItem> items) {
+    return jsonEncode(uploadItemsToAnswerImgs(items));
+  }
+}

lib/features/conquerPackage/classExercises/models/question_model.dart

@@ -0,0 +1,267 @@
+/// ============================================================
+/// 【QuestionModel】题目数据模型（纯 Dart 可变类）
+///
+/// 设计说明（对应用户口型：纯 Dart 可变类、全量保留原字段名、
+/// 手写 fromJson/toJson、不用 Isar/codegen）：
+///   - 内部以 `Map<String, dynamic>` 承载全部字段（后端字段 + 解析器
+///     动态产出 + 运行时字段），字段名与 Vue 端完全一致；
+///   - 解析器（core/utils/question/）直接操作 Map，本类提供类型化
+///     get/set 给页面与控制器使用；
+///   - childs/subQuestions 每次访问都基于同一批 Map 生成包装对象，
+///     因此通过子模型的写操作会落到原始 Map 上（等价 JS 引用语义）。
+/// ============================================================
+library;
+
+class QuestionModel {
+  QuestionModel(this.m);
+
+  factory QuestionModel.fromJson(Map<String, dynamic> json) =>
+      QuestionModel(Map<String, dynamic>.from(json));
+
+  /// 原始数据（解析后的 Map，toJson 即提交回这个结构）
+  final Map<String, dynamic> m;
+
+  Map<String, dynamic> toJson() => m;
+
+  @override
+  String toString() => 'QuestionModel(id: $id, questionTypes: $questionTypes)';
+
+  // ---------------- 基础读写 ----------------
+
+  bool has(String key) => m.containsKey(key) && m[key] != null;
+
+  T? get<T>(String key) => m[key] is T ? m[key] as T : null;
+
+  void set(String key, dynamic value) => m[key] = value;
+
+  String str(String key, [String def = '']) {
+    final v = m[key];
+    return v == null ? def : '$v';
+  }
+
+  int? intOf(String key) {
+    final v = m[key];
+    if (v is num) return v.toInt();
+    if (v == null) return null;
+    return int.tryParse('$v');
+  }
+
+  bool boolOf(String key, [bool def = false]) =>
+      m[key] == true ? true : (m[key] == false ? false : def);
+
+  /// 注意：返回的是原 Map 的 cast 视图（非拷贝），
+  /// 这样子模型上的所有写操作都会落回原始 JSON Map（等价 JS 引用语义）。
+  List<Map<String, dynamic>> mapList(String key) {
+    final v = m[key];
+    if (v is! List) return const [];
+    return [
+      for (final e in v)
+        if (e is Map) e.cast<String, dynamic>(),
+    ];
+  }
+
+  // ---------------- 业务字段（原名） ----------------
+
+  String get id => str('id');
+  set id(dynamic v) => m['id'] = v;
+
+  String get questionId => str('questionId');
+  set questionId(dynamic v) => m['questionId'] = v;
+
+  dynamic get questionTypeId => m['questionTypeId'];
+  set questionTypeId(dynamic v) => m['questionTypeId'] = v;
+
+  String get questionTypeName => str('questionTypeName');
+  set questionTypeName(String v) => m['questionTypeName'] = v;
+
+  dynamic get questionTypeCode => m['questionTypeCode'];
+
+  bool get isObjective => boolOf('isObjective');
+  bool get isSelect => boolOf('isSelect');
+
+  String get stem => str('stem');
+  set stem(String v) => m['stem'] = v;
+
+  String get answer => str('answer');
+  set answer(String v) => m['answer'] = v;
+
+  String get correctAnswer => str('correctAnswer');
+  set correctAnswer(String v) => m['correctAnswer'] = v;
+
+  String get userAnswer => str('userAnswer');
+  set userAnswer(dynamic v) => m['userAnswer'] = v;
+
+  /// 部分接口字段（与 userAnswer 互为兜底）
+  String get myAnswer => str('myAnswer');
+  set myAnswer(dynamic v) => m['myAnswer'] = v;
+
+  /// Vue 端 child.userAnswer || child.myAnswer
+  String get effectiveAnswer {
+    final u = m['userAnswer'];
+    return u != null && '$u'.isNotEmpty ? '$u' : myAnswer;
+  }
+
+  int? get answerStatus => intOf('answerStatus');
+  set answerStatus(dynamic v) => m['answerStatus'] = v;
+
+  /// 解析（字符串或 {analysis: '...'}）
+  dynamic get answerAnalysisRaw => m['answerAnalysis'];
+  set answerAnalysisRaw(dynamic v) => m['answerAnalysis'] = v;
+
+  String get answerAnalysisText {
+    final v = m['answerAnalysis'];
+    if (v is Map) return '${v['analysis'] ?? ''}';
+    return v == null ? '' : '$v';
+  }
+
+  Map<String, dynamic>? get answerAnalysisVideo {
+    final v = m['answerAnalysisVideo'];
+    return v is Map ? Map<String, dynamic>.from(v) : null;
+  }
+
+  List<Map<String, dynamic>> get audios => mapList('audios');
+  List<Map<String, dynamic>> get videos => mapList('videos');
+
+  int get planTimeSecond => intOf('planTimeSecond') ?? 0;
+  set planTimeSecond(dynamic v) => m['planTimeSecond'] = v;
+
+  /// 运行时：本地剩余秒缓存
+  int? get newPlanTimeSecond => intOf('NewPlanTimeSecond');
+  set newPlanTimeSecond(int? v) => m['NewPlanTimeSecond'] = v;
+
+  /// 运行时：本题建议时长是否已完成
+  bool get isFinishPlanTime => boolOf('ISFinishPlanTime');
+  set isFinishPlanTime(bool v) => m['ISFinishPlanTime'] = v;
+
+  int get answerTimeSecond => intOf('answerTimeSecond') ?? 0;
+
+  dynamic get score => m['score'];
+  dynamic get userScore => m['userScore'];
+
+  bool get isCollect => boolOf('isCollect');
+  set isCollect(bool v) => m['isCollect'] = v;
+
+  dynamic get collectId => m['collectId'];
+  set collectId(dynamic v) => m['collectId'] = v;
+
+  bool get isWrongCollect => boolOf('isWrongCollect');
+  set isWrongCollect(bool v) => m['isWrongCollect'] = v;
+
+  dynamic get wrongCollectId => m['wrongCollectId'];
+  set wrongCollectId(dynamic v) => m['wrongCollectId'] = v;
+
+  bool get hasChild => boolOf('hasChild');
+
+  List<QuestionModel> get childs =>
+      mapList('childs').map(QuestionModel.new).toList();
+
+  List<dynamic> get indexes =>
+      m['indexes'] is List ? m['indexes'] as List : const [];
+
+  /// 笔记图片（{id,url,thumbnailUrl} 等）
+  List<Map<String, dynamic>> get notes => mapList('notes');
+  set notes(List<dynamic> v) => m['notes'] = v;
+
+  String get source => str('source');
+
+  String? get wrongReason =>
+      m['wrongReason'] == null ? null : '${m['wrongReason']}';
+  String? get wrongAdvice =>
+      m['wrongAdvice'] == null ? null : '${m['wrongAdvice']}';
+
+  bool get isUploadNotes => boolOf('isUploadNotes');
+
+  /// 加载时注入：0 输入框 / 1 图片作答
+  int get isFillblankItemUpload => intOf('iSFilllankItemUpload') ?? 0;
+  set isFillblankItemUpload(dynamic v) => m['iSFilllankItemUpload'] = v;
+
+  dynamic get baseSubjectId => m['baseSubjectId'];
+  set baseSubjectId(dynamic v) => m['baseSubjectId'] = v;
+
+  int? get sort => intOf('sort');
+  set sort(dynamic v) => m['sort'] = v;
+
+  int? get wrongSort => intOf('wrongSort');
+  set wrongSort(dynamic v) => m['wrongSort'] = v;
+
+  /// appendExamQuestionChildOptionStatus 注入
+  bool get hasOptionChildrenQuestion => boolOf('hasOptionChildrenQuestion');
+  set hasOptionChildrenQuestion(bool v) =>
+      m['hasOptionChildrenQuestion'] = v;
+
+  List<QuestionModel> get subQuestions =>
+      mapList('subQuestions').map(QuestionModel.new).toList();
+
+  List<QuestionModel> get bkTagMetaList =>
+      mapList('bkTagMetaList').map(QuestionModel.new).toList();
+
+  /// 选项 [{optionLabel, options}]
+  List<Map<String, String>> get options {
+    final v = m['options'];
+    if (v is! List) return const [];
+    return v.whereType<Map>().map((e) {
+      return {
+        'optionLabel': '${e['optionLabel'] ?? ''}',
+        'options': '${e['options'] ?? ''}',
+      };
+    }).toList();
+  }
+
+  String get questionTypes => str('questionTypes');
+  set questionTypes(String v) => m['questionTypes'] = v;
+
+  String get analysis => str('analysis');
+  set analysis(String v) => m['analysis'] = v;
+
+  /// 解析时保留的原始对象
+  Map<String, dynamic>? get raw {
+    final v = m['raw'];
+    return v is Map ? Map<String, dynamic>.from(v) : null;
+  }
+
+  /// 运行时：进入本题时间（本地 ISO）
+  String? get startTime => m['startTime'] as String?;
+  set startTime(String? v) => m['startTime'] = v;
+
+  /// 运行时：离开本题时间（本地 ISO）
+  String? get endTime => m['endTime'] as String?;
+  set endTime(String? v) => m['endTime'] = v;
+
+  /// 子题号（如 "1.1"，subQuestions 元素自带）
+  dynamic get index => m['index'];
+
+  /// 运行时：列表下标
+  int? get currentIndex => intOf('currentIndex');
+  set currentIndex(int v) => m['currentIndex'] = v;
+
+  // ---------------- 便捷方法 ----------------
+
+  QuestionModel? childAt(int index) {
+    final list = mapList('childs');
+    if (index < 0 || index >= list.length) return null;
+    return QuestionModel(list[index]);
+  }
+
+  QuestionModel? subAt(int index) {
+    final list = mapList('subQuestions');
+    if (index < 0 || index >= list.length) return null;
+    return QuestionModel(list[index]);
+  }
+
+  /// 重置本题及其子题的 startTime（对应 Vue resetCurrentQuestionStartTime）
+  void resetStartTime(String isoNow) {
+    m['startTime'] = isoNow;
+    for (final key in ['subQuestions', 'childs']) {
+      final v = m[key];
+      if (v is List) {
+        for (final c in v) {
+          if (c is Map) c['startTime'] = isoNow;
+        }
+      }
+    }
+  }
+}
+
+/// 选项取值辅助
+String optionLabelOf(Map<String, String> option) => option['optionLabel'] ?? '';
+String optionContentOf(Map<String, String> option) => option['options'] ?? '';

lib/features/conquerPackage/classExercises/widgets/answer_card_popup.dart

@@ -0,0 +1,462 @@
+/// ============================================================
+/// 【AnswerCardPopup】答题卡弹层
+/// （1:1 迁移 Vue components/AnswerCardPopup/AnswerCardPopup.vue）
+///
+/// statusMode：
+///   answer 答题中：未答 / 已答 /（扩展）时长不足 / 待补笔记，底部双按钮
+///   result 查看结果：答对 / 答错 / 未答，无底部按钮
+///
+/// 数据：buildExamAnswerCardQuestions 拍平 → 按 sort 排序 →
+///      相邻 questionTypeName 分组。
+/// 事件：onSelect(questionMap) 选择题目（同时关闭）；
+///      onCancel 继续答题/关闭；onSubmit 交卷。
+/// ============================================================
+library;
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/core/utils/question/exam_answer_card.dart';
+
+import 'exercise_styles.dart';
+
+/// 答题卡状态码
+class AnswerCardStatus {
+  AnswerCardStatus._();
+
+  static const int unanswered = 0;
+  static const int answered = 1;
+  static const int correct = 2;
+  static const int wrong = 3;
+  static const int planTimeNotEnough = 20;
+  static const int pendingNotes = 21;
+}
+
+class AnswerCardPopup extends StatelessWidget {
+  const AnswerCardPopup({
+    super.key,
+    required this.show,
+    required this.questions,
+    this.isExamAnswerCard = true,
+    this.statusMode = 'answer',
+    this.enableExtendedAnswerStatus = false,
+    this.onCancel,
+    this.onSubmit,
+    this.onSelect,
+  });
+
+  final bool show;
+
+  /// QuestionModel.m 原始题目 Map 列表（同一引用即可，内部只读取/拷贝）
+  final List<Map<String, dynamic>> questions;
+  final bool isExamAnswerCard;
+
+  /// answer / result
+  final String statusMode;
+  final bool enableExtendedAnswerStatus;
+
+  final VoidCallback? onCancel;
+  final VoidCallback? onSubmit;
+  final ValueChanged<Map<String, dynamic>>? onSelect;
+
+  bool get _extended =>
+      statusMode == 'answer' && enableExtendedAnswerStatus;
+
+  // ---------------- 状态判定（1:1 移植 Vue） ----------------
+
+  String _normalizeAnswer(dynamic value) =>
+      '$value'.replaceAll(RegExp(r'<[^>]+>'), '').replaceAll(RegExp(r'\s+'), '').toUpperCase();
+
+  bool _hasUploadedNotes(dynamic notes) {
+    if (notes is List) return notes.isNotEmpty;
+    return hasValue(notes);
+  }
+
+  bool _hasFinishedPlanTime(Map<String, dynamic> q) {
+    final planTimeSecond = _num(q['planTimeSecond']);
+    if (planTimeSecond <= 0) return true;
+    if (q['ISFinishPlanTime'] == true) return true;
+    final answerTimeSecond = _num(q['answerTimeSecond']);
+    return answerTimeSecond > planTimeSecond;
+  }
+
+  int _questionStatus(Map<String, dynamic> q) {
+    final fillBlankAnswered = isFillBlankFullyAnswered(q);
+    final answered = (fillBlankAnswered == null || !fillBlankAnswered)
+        ? hasValue(q['userAnswer'])
+        : fillBlankAnswered;
+
+    if (statusMode == 'answer') {
+      if (!answered) return AnswerCardStatus.unanswered;
+      if (_extended &&
+          _num(q['planTimeSecond']) > 0 &&
+          !_hasFinishedPlanTime(q)) {
+        return AnswerCardStatus.planTimeNotEnough;
+      }
+      if (_extended &&
+          q['isUploadNotes'] == true &&
+          !_hasUploadedNotes(q['notes'])) {
+        return AnswerCardStatus.pendingNotes;
+      }
+      return AnswerCardStatus.answered;
+    }
+
+    // result 模式
+    if (!answered) return AnswerCardStatus.unanswered;
+
+    final rawStatus = q['answerStatus'];
+    if (rawStatus != null) {
+      final status = _num(rawStatus, -1);
+      if (status == 10) return AnswerCardStatus.correct;
+      if (status == 11 || status == 12 || status == 1) {
+        return AnswerCardStatus.wrong;
+      }
+      if (status == 0) return AnswerCardStatus.unanswered;
+    }
+
+    final myAnswer = _normalizeAnswer(q['userAnswer']);
+    final correctAnswer =
+        _normalizeAnswer(q['correctAnswer'] ?? q['answer']);
+    return myAnswer == correctAnswer
+        ? AnswerCardStatus.correct
+        : AnswerCardStatus.wrong;
+  }
+
+  /// 拍平 + 按相邻题型分组
+  List<Map<String, dynamic>> _groups() {
+    final flat = buildExamAnswerCardQuestions(
+      questions,
+      isExamAnswerCard: isExamAnswerCard,
+    )..sort((a, b) => _num(a['sort']).compareTo(_num(b['sort'])));
+
+    final result = <Map<String, dynamic>>[];
+    Map<String, dynamic>? current;
+    for (final q in flat) {
+      final typeName = '${q['questionTypeName'] ?? '题目'}';
+      if (current == null || current['name'] != typeName) {
+        current = {
+          'name': typeName,
+          'questions': <Map<String, dynamic>>[],
+        };
+        result.add(current);
+      }
+      (current['questions'] as List).add({
+        ...q,
+        'status': _questionStatus(q),
+      });
+    }
+    return result;
+  }
+
+  // ---------------- 渲染 ----------------
+
+  @override
+  Widget build(BuildContext context) {
+    if (!show) return const SizedBox.shrink();
+    final isPad = isPadDevice(context);
+    final screenH = MediaQuery.sizeOf(context).height;
+
+    return Positioned.fill(
+      child: Stack(
+        children: [
+          Positioned.fill(
+            child: GestureDetector(
+              behavior: HitTestBehavior.opaque,
+              onTap: onCancel,
+              child: const ColoredBox(color: Color(0x99000000)),
+            ),
+          ),
+          Align(
+            alignment: Alignment.bottomCenter,
+            child: Container(
+              height: screenH * 0.8,
+              width: double.infinity,
+              padding: EdgeInsets.symmetric(horizontal: 14.w),
+              decoration: BoxDecoration(
+                borderRadius: BorderRadius.vertical(top: Radius.circular(20.r)),
+                image: DecorationImage(
+                  image: CachedNetworkImageProvider(
+                    ImgUrl.build(
+                      isPad
+                          ? '/StaticResource/2026-06-02/answer-sheet-bg-Pad1780382627852.png'
+                          : '/StaticResource/2026-04-08/answer-sheet-bg.png',
+                    ),
+                  ),
+                  fit: isPad ? BoxFit.fill : BoxFit.fill,
+                ),
+              ),
+              clipBehavior: Clip.antiAlias,
+              child: Column(
+                children: [
+                  _buildHeader(isPad),
+                  Expanded(child: _buildBody()),
+                  if (statusMode == 'answer') _buildFooter(),
+                ],
+              ),
+            ),
+          ),
+          // pad 右上关闭热区（50% 宽 × 400rpx）
+          if (isPad)
+            Positioned(
+              right: 0,
+              top: screenH * 0.04,
+              width: MediaQuery.sizeOf(context).width * 0.5,
+              height: 200.h,
+              child: GestureDetector(
+                behavior: HitTestBehavior.opaque,
+                onTap: onCancel,
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildHeader(bool isPad) {
+    return Padding(
+      padding: EdgeInsets.only(top: isPad ? 180.h : 95.h), // 190/360rpx
+      child: Column(
+        children: [
+          // 标题 "答题卡"，右下角 title-bacs.png 装饰背景
+          Align(
+            alignment: Alignment.centerLeft,
+            child: Container(
+              padding: EdgeInsets.only(right: 30.w),
+              decoration: BoxDecoration(
+                image: DecorationImage(
+                  image: CachedNetworkImageProvider(
+                    ImgUrl.build(
+                        '/StaticResource/2026-04-01/title-bacs.png'),
+                  ),
+                  alignment: Alignment.centerRight,
+                  fit: BoxFit.fitHeight,
+                ),
+              ),
+              child: Text(
+                '答题卡',
+                style: TextStyle(
+                  fontSize: 16.sp,
+                  fontWeight: FontWeight.w600,
+                  color: ExerciseColors.title,
+                ),
+              ),
+            ),
+          ),
+          SizedBox(height: 10.h),
+          if (statusMode == 'answer')
+            _buildLegend(
+              isPad,
+              _extended
+                  ? const [
+                      _LegendItem('未答', Color(0xFF94A5B8)),
+                      _LegendItem('已答', Color(0xFF3D7DF5)),
+                      _LegendItem('时长不足', Color(0xFFFF9F1A)),
+                      _LegendItem('待补笔记', Color(0xFF8B5CF6)),
+                    ]
+                  : const [
+                      _LegendItem('未答', Color(0xFF94A5B8)),
+                      _LegendItem('已答', Color(0xFF3D7DF5)),
+                    ],
+              extended: _extended,
+            )
+          else
+            _buildLegend(
+              isPad,
+              const [
+                _LegendItem('答对', Color(0xFF00CC96)),
+                _LegendItem('答错', Color(0xFFFF4D4D)),
+                _LegendItem('未答', Color(0xFF94A5B8)),
+              ],
+              extended: false,
+            ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildLegend(
+    bool isPad,
+    List<_LegendItem> items, {
+    required bool extended,
+  }) {
+    return Container(
+      width: extended ? 320.w : 150.w,
+      padding: EdgeInsets.all(5.w),
+      decoration: BoxDecoration(
+        gradient: const LinearGradient(
+          begin: Alignment.topCenter,
+          end: Alignment.bottomCenter,
+          colors: [Color(0x05FFFFFF), Color(0x33FFFFFF)],
+        ),
+        border: Border.all(color: const Color(0x4DFFFFFF), width: 1.w),
+        borderRadius: BorderRadius.circular(16.r),
+      ),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceAround,
+        children: [
+          for (final item in items)
+            Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                Container(
+                  width: 6.w,
+                  height: 6.w,
+                  decoration: BoxDecoration(
+                    color: item.color,
+                    shape: BoxShape.circle,
+                  ),
+                ),
+                SizedBox(width: 5.w),
+                Text(
+                  item.label,
+                  style:
+                      TextStyle(fontSize: 12.sp, color: ExerciseColors.subtitle),
+                ),
+              ],
+            ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildBody() {
+    final groups = _groups();
+    return Padding(
+      padding: EdgeInsets.only(top: 20.h, bottom: 20.h),
+      child: ListView.separated(
+        padding: EdgeInsets.zero,
+        itemCount: groups.length,
+        separatorBuilder: (_, _) => SizedBox(height: 20.h),
+        itemBuilder: (context, i) {
+          final g = groups[i];
+          final qs = (g['questions'] as List).cast<Map<String, dynamic>>();
+          return Container(
+            padding: EdgeInsets.all(14.w),
+            decoration: BoxDecoration(
+              color: Colors.white,
+              borderRadius: BorderRadius.circular(10.r),
+            ),
+            child: Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: [
+                Padding(
+                  padding: EdgeInsets.only(bottom: 12.h),
+                  child: Text(
+                    g['name'] as String,
+                    style: TextStyle(
+                      fontSize: 12.sp,
+                      fontWeight: FontWeight.w600,
+                      color: ExerciseColors.subtitle,
+                    ),
+                  ),
+                ),
+                Wrap(
+                  spacing: 10.w,
+                  runSpacing: 10.h,
+                  children: [
+                    for (final q in qs)
+                      GestureDetector(
+                        onTap: () => onSelect?.call(q),
+                        behavior: HitTestBehavior.opaque,
+                        child: Container(
+                          width: 44.w, // 88rpx
+                          height: 36.h, // 72rpx
+                          alignment: Alignment.center,
+                          decoration: BoxDecoration(
+                            color: _itemBg(q['status'] as int),
+                            borderRadius: BorderRadius.circular(6.r),
+                          ),
+                          child: Text(
+                            '${q['sort']}',
+                            style: TextStyle(
+                              fontSize: 14.sp,
+                              color: _itemColor(q['status'] as int),
+                            ),
+                          ),
+                        ),
+                      ),
+                  ],
+                ),
+              ],
+            ),
+          );
+        },
+      ),
+    );
+  }
+
+  Widget _buildFooter() {
+    return Container(
+      color: Colors.white,
+      padding: EdgeInsets.only(top: 12.h, bottom: 12.h),
+      child: SafeArea(
+        top: false,
+        child: Row(
+          children: [
+            Expanded(
+              child: ExerciseButton(
+                text: '继续答题',
+                style: ExerciseButtonStyle.outline,
+                onTap: onCancel,
+              ),
+            ),
+            SizedBox(width: 10.w),
+            Expanded(
+              child: ExerciseButton(
+                text: '交卷',
+                style: ExerciseButtonStyle.blueGradient,
+                onTap: onSubmit,
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Color _itemBg(int status) {
+    switch (status) {
+      case AnswerCardStatus.answered:
+        return const Color(0xFFF0F8FF);
+      case AnswerCardStatus.correct:
+        return const Color(0xFFE8FAF6);
+      case AnswerCardStatus.wrong:
+        return const Color(0xFFFFF0F0);
+      case AnswerCardStatus.planTimeNotEnough:
+        return const Color(0xFFFFF6E8);
+      case AnswerCardStatus.pendingNotes:
+        return const Color(0xFFF4EEFF);
+      default:
+        return const Color(0xFFF5F7FA);
+    }
+  }
+
+  Color _itemColor(int status) {
+    switch (status) {
+      case AnswerCardStatus.answered:
+        return Color(0xFF3D7DF5);
+      case AnswerCardStatus.correct:
+        return ExerciseColors.correct;
+      case AnswerCardStatus.wrong:
+        return const Color(0xFFFF5252);
+      case AnswerCardStatus.planTimeNotEnough:
+        return const Color(0xFFFF9F1A);
+      case AnswerCardStatus.pendingNotes:
+        return const Color(0xFF8B5CF6);
+      default:
+        return const Color(0xFF94A5B8);
+    }
+  }
+}
+
+class _LegendItem {
+  const _LegendItem(this.label, this.color);
+  final String label;
+  final Color color;
+}
+
+int _num(dynamic v, [int def = 0]) {
+  if (v is num) return v.toInt();
+  return int.tryParse('${v ?? ''}') ?? def;
+}

lib/features/conquerPackage/classExercises/widgets/answer_view.dart

@@ -0,0 +1,244 @@
+/// ============================================================
+/// 【ObjectiveAnswerView】客观题答案对比卡片
+/// （1:1 迁移 Vue components/AnswerView.vue 的 type == 'objective' 分支；
+///  本页只使用客观题形态）
+///
+/// 视觉：
+///   218rpx 卡片：上行作答状态图标+文案（10 正确 / 11 错误 / 12 部分正确 /
+///   0 未作答），下行白色对比块："正确答案：X / 你的答案：Y"
+/// ============================================================
+library;
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/components/rich_text_content.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+
+import 'exercise_styles.dart';
+
+class ObjectiveAnswerView extends StatelessWidget {
+  const ObjectiveAnswerView({
+    super.key,
+    required this.answerStatus,
+    this.userAnswer = '',
+    this.correctAnswer = '',
+  });
+
+  /// 0 未作答 / 10 正确 / 11 错误 / 12 部分正确
+  final dynamic answerStatus;
+  final String userAnswer;
+  final String correctAnswer;
+
+  int get _status => int.tryParse('$answerStatus') ?? 0;
+
+  bool get _isCorrect => _status == 10;
+
+  /// 客观题文字展示清洗（对标 formatOptionText），仅用于判空与纯文本展示
+  String _formatOptionText(dynamic ans) {
+    if (ans == null) return '';
+
+    String str;
+    if (ans is List) {
+      str = ans.join();
+    } else if (ans is Map) {
+      str = ans.toString();
+      if (str == '{}' || str == '[]') return '';
+    } else {
+      str = '$ans';
+    }
+
+    final trimmed = str.trim();
+    if (trimmed.isEmpty || trimmed == '[]' || trimmed == '{}' ||
+        trimmed == '""' || trimmed == "''") {
+      return '';
+    }
+
+    var result = trimmed.replaceAll(RegExp(r'<[^>]+>'), '');
+    result = result.replaceAll('&nbsp;', ' ');
+    result = result.replaceAll(RegExp(r'&[a-z]+;'), '');
+    result = result.replaceAll(RegExp(r'\s+'), ' ');
+    result = result.replaceAll(RegExp(r'^(\d+[\.\s、)\s]+|第\d+题)'), '');
+    result = result.replaceAll(',', '');
+    return result.trim();
+  }
+
+  /// 清洗后的答案 HTML（富文本渲染用）
+  String _rendered(String html) => cleanRichText(html);
+
+  bool _hasFormula(String html) =>
+      RegExp(r'math-formula|katex').hasMatch(html);
+
+  @override
+  Widget build(BuildContext context) {
+    final correctText = _formatOptionText(correctAnswer);
+    final userText = _formatOptionText(userAnswer);
+    final correctDisplay = correctText.isEmpty ? '无' : correctText;
+    final userDisplay = userText.isEmpty ? '未作答' : userText;
+
+    final statusText = _status == 10
+        ? '回答正确'
+        : _status == 11
+            ? '回答错误'
+            : _status == 12
+                ? '部分正确'
+                : '未作答';
+
+    final accent = _isCorrect ? ExerciseColors.correct : ExerciseColors.error;
+
+    final correctHtml = _rendered(correctAnswer);
+    final userHtml = _rendered(userAnswer);
+
+    return Container(
+      height: 109.h, // 218rpx
+      decoration: BoxDecoration(
+        // CSS 外层：实色 padding-box + 180deg 渐变 border-box
+        gradient: LinearGradient(
+          begin: Alignment.topCenter,
+          end: Alignment.bottomCenter,
+          colors: _isCorrect
+              ? const [Color(0x8000CC96), Color(0x1A00CC96), Color(0x8000CC96)]
+              : const [Color(0x80FF4C4C), Color(0x1AFF4C4C), Color(0x80FF4C4C)],
+        ),
+        borderRadius: BorderRadius.circular(12.r),
+      ),
+      child: Container(
+        margin: EdgeInsets.all(1.w),
+        decoration: BoxDecoration(
+          color: _isCorrect ? const Color(0xFFEBFFFA) : const Color(0xFFFFF0F0),
+          borderRadius: BorderRadius.circular(11.r),
+        ),
+        child: Column(
+          children: [
+            // 第一行：状态提示
+            Padding(
+              padding: EdgeInsets.symmetric(horizontal: 14.w, vertical: 14.h),
+              child: Row(
+                children: [
+                  CachedNetworkImage(
+                    imageUrl: ImgUrl.build(
+                      _isCorrect
+                          ? '/StaticResource/2026-06-01/correct-icon1780284329572.png'
+                          : '/StaticResource/2026-06-01/error-icon1780284292405.png',
+                    ),
+                    width: 16.w,
+                    height: 16.w,
+                  ),
+                  SizedBox(width: 6.w),
+                  Text(
+                    statusText,
+                    style: TextStyle(
+                      fontSize: 14.sp,
+                      fontWeight: FontWeight.w600,
+                      color: accent,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+            // 第二行：答案对比
+            Expanded(
+              child: Container(
+                margin: EdgeInsets.fromLTRB(1.w, 0, 1.w, 1.w),
+                padding: EdgeInsets.fromLTRB(14.w, 0, 26.w, 0),
+                decoration: BoxDecoration(
+                  color: Colors.white,
+                  borderRadius: BorderRadius.circular(10.r),
+                ),
+                child: Row(
+                  children: [
+                    Expanded(
+                      child: _CompareItem(
+                        label: '正确答案：',
+                        child: _hasFormula(correctHtml)
+                            ? RichTextContent(
+                                html: correctHtml,
+                                textStyle: TextStyle(
+                                  fontSize: 14.sp,
+                                  color: const Color(0xFF333333),
+                                  fontWeight: FontWeight.bold,
+                                ),
+                              )
+                            : Text(
+                                correctDisplay,
+                                style: TextStyle(
+                                  fontSize: 14.sp,
+                                  color: const Color(0xFF333333),
+                                  fontWeight: FontWeight.bold,
+                                ),
+                              ),
+                      ),
+                    ),
+                    Expanded(
+                      child: _CompareItem(
+                        alignEnd: true,
+                        label: '你的答案：',
+                        child: _hasFormula(userHtml)
+                            ? RichTextContent(
+                                html: userHtml,
+                                textStyle: TextStyle(
+                                  fontSize: 14.sp,
+                                  color: _isCorrect
+                                      ? ExerciseColors.correct
+                                      : (userText.isEmpty
+                                          ? const Color(0xFF999999)
+                                          : ExerciseColors.error),
+                                  fontWeight: FontWeight.bold,
+                                ),
+                              )
+                            : Text(
+                                userDisplay,
+                                style: TextStyle(
+                                  fontSize: 14.sp,
+                                  color: _isCorrect
+                                      ? ExerciseColors.correct
+                                      : (userText.isEmpty
+                                          ? const Color(0xFF999999)
+                                          : ExerciseColors.error),
+                                  fontWeight: FontWeight.bold,
+                                ),
+                              ),
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class _CompareItem extends StatelessWidget {
+  const _CompareItem({
+    required this.label,
+    required this.child,
+    this.alignEnd = false,
+  });
+
+  final String label;
+  final Widget child;
+  final bool alignEnd;
+
+  @override
+  Widget build(BuildContext context) {
+    final row = Row(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Flexible(
+          child: Text(
+            label,
+            style: TextStyle(fontSize: 14.sp, color: ExerciseColors.subtitle),
+          ),
+        ),
+        Flexible(child: child),
+      ],
+    );
+    return alignEnd
+        ? Align(alignment: Alignment.centerRight, child: row)
+        : Align(alignment: Alignment.centerLeft, child: row);
+  }
+}

lib/features/conquerPackage/classExercises/widgets/conquer_popup.dart

@@ -0,0 +1,252 @@
+/// ============================================================
+/// 【ConquerPopup】攻克流程弹窗
+/// （1:1 迁移 Vue components/ConquerPopup/ConquerPopup.vue）
+///
+/// 四种类型：
+///   note   过程笔记提示
+///   time   最低作答时长提示（确认键在左、取消键在右）
+///   submit 确认交卷（取消键在左、确认键在右）
+///   grading 题目批改中（遮罩与按钮都不能关闭；唯一按钮 emit confirm）
+///
+/// 事件（与 Vue emit 对齐）：
+///   onConfirm(action)  点确认按钮
+///   onCancel()         点遮罩/取消；若 confirmAction == 'showAnswerSheet'
+///                      （isConfirm 单按钮或遮罩）会紧跟一次 onConfirm(action)
+/// ============================================================
+library;
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/components/rich_text_content.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+
+import 'exercise_styles.dart';
+
+class ConquerPopup extends StatelessWidget {
+  const ConquerPopup({
+    super.key,
+    required this.show,
+    this.type = 'note',
+    this.title = '',
+    this.subtitle = '',
+    this.confirmText = '确定',
+    this.cancelText = '取消',
+    this.isConfirm = false,
+    this.confirmAction = '',
+    this.onConfirm,
+    this.onCancel,
+  });
+
+  final bool show;
+
+  /// note / time / submit / grading
+  final String type;
+  final String title;
+  final String subtitle;
+  final String confirmText;
+  final String cancelText;
+  final bool isConfirm;
+  final String confirmAction;
+  final ValueChanged<String>? onConfirm;
+  final VoidCallback? onCancel;
+
+  static const Map<String, String> _bgMap = {
+    'note': '/StaticResource/2026-04-08/conquer-note-bg.png',
+    'time': '/StaticResource/2026-04-08/conquer-time-bg.png',
+    'submit': '/StaticResource/2026-04-08/conquer-submit-bg.png',
+    'grading': '/StaticResource/2026-04-08/conquer-grading-bg.png',
+  };
+
+  /// grading 遮罩点击：直接拦截不关闭
+  void _handleMaskCancel() {
+    if (type == 'grading') return;
+    _handleCancel();
+  }
+
+  /// 普通取消：关闭 + cancel + showAnswerSheet 时补发 confirm
+  void _handleCancel() {
+    onCancel?.call();
+    if (confirmAction == 'showAnswerSheet') {
+      onConfirm?.call(confirmAction);
+    }
+  }
+
+  void _handleConfirm() {
+    onConfirm?.call(confirmAction);
+  }
+
+  /// 标题/副标题可能是 HTML（v-html）
+  Widget _htmlOrText(
+    String html, {
+    required double fontSize,
+    required Color color,
+    FontWeight? fontWeight,
+    double? height,
+  }) {
+    final style = TextStyle(
+      fontSize: fontSize,
+      color: color,
+      fontWeight: fontWeight,
+      height: height,
+    );
+    if (html.contains(RegExp(r'<[a-zA-Z][^>]*>'))) {
+      return RichTextContent(html: html, textStyle: style);
+    }
+    return Text(html, textAlign: TextAlign.center, style: style);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (!show) return const SizedBox.shrink();
+    final isPad = isPadDevice(context);
+    final isGrading = type == 'grading';
+
+    return Positioned.fill(
+      child: Stack(
+        children: [
+          // mask rgba(0,0,0,.6)
+          Positioned.fill(
+            child: GestureDetector(
+              behavior: HitTestBehavior.opaque,
+              onTap: _handleMaskCancel,
+              child: const ColoredBox(color: Color(0x99000000)),
+            ),
+          ),
+          Center(
+            child: Container(
+              width: isPad ? 305.w : 278.w, // 556rpx / 610rpx
+              constraints: BoxConstraints(minHeight: 352.5.h), // 705rpx
+              padding: EdgeInsets.only(
+                left: 27.5.w, // 55rpx
+                right: 25.w, // 50rpx
+                bottom: 30.h, // 60rpx
+              ),
+              decoration: BoxDecoration(
+                borderRadius: BorderRadius.circular(15.r),
+                image: DecorationImage(
+                  image: CachedNetworkImageProvider(
+                    ImgUrl.build(_bgMap[type] ?? _bgMap['note']!),
+                  ),
+                  fit: BoxFit.fitWidth,
+                  alignment: Alignment.topCenter,
+                ),
+              ),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Padding(
+                    padding: EdgeInsets.only(top: isPad ? 170.h : 150.h),
+                    child: _htmlOrText(
+                      title,
+                      fontSize: 18.sp, // 36rpx
+                      color: ExerciseColors.title,
+                      fontWeight: FontWeight.w600,
+                      height: 25.h / 18.sp,
+                    ),
+                  ),
+                  if (isGrading) ...[
+                    // 预计 3~5 分钟有结果
+                    Container(
+                      margin: EdgeInsets.only(top: 20.h),
+                      height: 44.h, // 88rpx
+                      alignment: Alignment.center,
+                      decoration: BoxDecoration(
+                        color: const Color(0xFFF2F8FF),
+                        borderRadius: BorderRadius.circular(6.r),
+                      ),
+                      child: Text.rich(
+                        TextSpan(
+                          style: TextStyle(
+                            fontSize: 14.sp,
+                            color: ExerciseColors.subtitle,
+                          ),
+                          children: [
+                            const TextSpan(text: '预计 '),
+                            TextSpan(
+                              text: '3~5',
+                              style: TextStyle(
+                                fontSize: 16.sp,
+                                fontWeight: FontWeight.w600,
+                                color: ExerciseColors.primary,
+                              ),
+                            ),
+                            const TextSpan(text: ' 分钟有结果'),
+                          ],
+                        ),
+                      ),
+                    ),
+                    Padding(
+                      padding: EdgeInsets.only(top: 15.h),
+                      child: ExerciseButton(
+                        text: confirmText,
+                        style: ExerciseButtonStyle.primary,
+                        width: 220.w, // 440rpx
+                        onTap: _handleConfirm,
+                      ),
+                    ),
+                  ] else ...[
+                    if (subtitle.isNotEmpty)
+                      Padding(
+                        padding: EdgeInsets.only(top: 10.h, left: 10.w, right: 10.w),
+                        child: _htmlOrText(
+                          subtitle,
+                          fontSize: 14.sp, // 28rpx
+                          color: ExerciseColors.subtitle,
+                          height: 22.h / 14.sp,
+                        ),
+                      ),
+                    Padding(
+                      padding: EdgeInsets.only(top: 25.h),
+                      child: isConfirm
+                          ? ExerciseButton(
+                              text: confirmText,
+                              style: ExerciseButtonStyle.primary,
+                              width: double.infinity,
+                              onTap: _handleCancel,
+                            )
+                          : Row(
+                              mainAxisAlignment: MainAxisAlignment.spaceBetween,
+                              children: type == 'time'
+                                  ? [
+                                      // time：确认在左（白底）、取消在右（蓝底）
+                                      ExerciseButton(
+                                        text: confirmText,
+                                        style: ExerciseButtonStyle.secondary,
+                                        width: 105.w, // 210rpx
+                                        onTap: _handleConfirm,
+                                      ),
+                                      ExerciseButton(
+                                        text: cancelText,
+                                        style: ExerciseButtonStyle.primary,
+                                        width: 105.w,
+                                        onTap: _handleCancel,
+                                      ),
+                                    ]
+                                  : [
+                                      // note / submit：取消在左、确认在右
+                                      ExerciseButton(
+                                        text: cancelText,
+                                        style: ExerciseButtonStyle.secondary,
+                                        width: 105.w,
+                                        onTap: _handleCancel,
+                                      ),
+                                      ExerciseButton(
+                                        text: confirmText,
+                                        style: ExerciseButtonStyle.primary,
+                                        width: 105.w,
+                                        onTap: _handleConfirm,
+                                      ),
+                                    ],
+                            ),
+                    ),
+                  ],
+                ],
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/features/conquerPackage/classExercises/widgets/exercise_confirm_box.dart

@@ -0,0 +1,136 @@
+/// ============================================================
+/// 【ExerciseConfirmBox】通用确认弹窗
+/// （1:1 迁移 Vue classExercises/ExerciseConfirmBox.vue）
+///
+/// 交互点：
+///   - 点遮罩 / 取消：onCancel（父级负责把 show 置 false）
+///   - 点确定：onConfirm（不主动关闭，与 Vue 一致由业务决定）
+///   - showCancel=false 时只显示单满宽确定按钮
+/// ============================================================
+library;
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+
+import 'exercise_styles.dart';
+
+class ExerciseConfirmBox extends StatelessWidget {
+  const ExerciseConfirmBox({
+    super.key,
+    required this.show,
+    this.title = '提示',
+    this.content = '',
+    this.cancelText = '取消',
+    this.confirmText = '确定',
+    this.showCancel = true,
+    this.onCancel,
+    this.onConfirm,
+  });
+
+  final bool show;
+  final String title;
+  final String content;
+  final String cancelText;
+  final String confirmText;
+  final bool showCancel;
+  final VoidCallback? onCancel;
+  final VoidCallback? onConfirm;
+
+  @override
+  Widget build(BuildContext context) {
+    if (!show) return const SizedBox.shrink();
+
+    return Stack(
+      children: [
+        // mask rgba(0,0,0,.45)，点击=cancel
+        Positioned.fill(
+          child: GestureDetector(
+            behavior: HitTestBehavior.opaque,
+            onTap: onCancel,
+            child: const ColoredBox(color: Color(0x73000000)),
+          ),
+        ),
+        Center(
+          child: Container(
+            width: 315.w, // 630rpx, max calc(100vw - 80rpx)
+            constraints: BoxConstraints(
+              maxWidth: MediaQuery.sizeOf(context).width - 40.w,
+            ),
+            padding: EdgeInsets.symmetric(vertical: 30.h, horizontal: 15.w),
+            decoration: BoxDecoration(
+              color: const Color(0xFFF5F8FA),
+              borderRadius: BorderRadius.circular(20.r),
+              image: DecorationImage(
+                image: CachedNetworkImageProvider(
+                  ImgUrl.build('/StaticResource/2026-03-31/header-bac.png'),
+                ),
+                fit: BoxFit.fitWidth,
+                alignment: Alignment.topCenter,
+              ),
+            ),
+            child: Column(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                if (title.isNotEmpty)
+                  Text(
+                    title,
+                    style: TextStyle(
+                      fontSize: 16.sp,
+                      fontWeight: FontWeight.w600,
+                      color: ExerciseColors.title,
+                    ),
+                  ),
+                if (content.isNotEmpty)
+                  Padding(
+                    padding: EdgeInsets.only(top: 18.h),
+                    child: ConstrainedBox(
+                      constraints: BoxConstraints(maxWidth: 263.w),
+                      child: Text(
+                        content,
+                        textAlign: TextAlign.center,
+                        style: TextStyle(
+                          fontSize: 14.sp,
+                          color: ExerciseColors.title,
+                          height: 1.5,
+                        ),
+                      ),
+                    ),
+                  ),
+                Padding(
+                  padding: EdgeInsets.only(top: 23.h),
+                  child: showCancel
+                      ? Row(
+                          mainAxisAlignment: MainAxisAlignment.center,
+                          children: [
+                            ExerciseButton(
+                              text: cancelText,
+                              style: ExerciseButtonStyle.secondary,
+                              width: 135.w,
+                              onTap: onCancel,
+                            ),
+                            SizedBox(width: 10.w),
+                            ExerciseButton(
+                              text: confirmText,
+                              style: ExerciseButtonStyle.primary,
+                              width: 135.w,
+                              onTap: onConfirm,
+                            ),
+                          ],
+                        )
+                      : ExerciseButton(
+                          text: confirmText,
+                          style: ExerciseButtonStyle.primary,
+                          width: double.infinity,
+                          onTap: onConfirm,
+                        ),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}

lib/features/conquerPackage/classExercises/widgets/exercise_styles.dart

@@ -0,0 +1,336 @@
+/// ============================================================
+/// 课堂习题模块共享样式
+///
+/// 集中放置 classExercises 各 widget 复用的：
+///   1. 颜色常量（对标 Vue common.scss 的 $default-color 系列）
+///   2. isPadDevice 判定（shortestSide >= 600）
+///   3. 渐变描边容器（对标 CSS padding-box/border-box 双层渐变）
+///   4. 通用胶囊按钮（对标 default-button1/2/3/4/5/6）
+/// ============================================================
+library;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+
+/// 与 Vue 端一一对应的色板
+class ExerciseColors {
+  ExerciseColors._();
+
+  /// 主题蓝 $default-color
+  static const Color primary = Color(0xFF3D7DF5);
+
+  /// $default-color-strong
+  static const Color primaryStrong = Color(0xFF3373FF);
+
+  /// $default-color-mid
+  static const Color primaryMid = Color(0xFF3C84FF);
+
+  /// $default-color-light
+  static const Color primaryLight = Color(0xFF8AD1FD);
+
+  /// 标题深色
+  static const Color title = Color(0xFF1D2B47);
+
+  /// 次级文字
+  static const Color subtitle = Color(0xFF687FAD);
+
+  /// 正确绿
+  static const Color correct = Color(0xFF00CC96);
+
+  /// 错误红
+  static const Color error = Color(0xFFFF4D4D);
+
+  /// 页面/卡片浅底
+  static const Color bg = Color(0xFFF5F8FA);
+
+  /// 选项默认底
+  static const Color tileBg = Color(0xFFFAFBFD);
+
+  /// 浅蓝描边
+  static const Color border = Color(0xFFE3ECFF);
+}
+
+/// 对标 Vue utils/util.js isPadDevice
+bool isPadDevice(BuildContext context) =>
+    MediaQuery.sizeOf(context).shortestSide >= 600;
+
+/// 选项 / 状态卡片的视觉态
+enum ExerciseTileState {
+  /// 默认：浅底 + 浅蓝描边
+  plain,
+
+  /// 作答中选中：蓝渐变描边
+  active,
+
+  /// 正确：绿渐变描边
+  correct,
+
+  /// 错误：红渐变描边
+  error,
+}
+
+/// 渐变描边容器
+///
+/// 对标 CSS 写法：
+/// `background: linear-gradient(...) padding-box,
+///            linear-gradient(...) border-box; border: 2rpx solid transparent;`
+/// Flutter 用「外层渐变 + 1.w 内边距 + 内层实色」实现相同观感。
+class GradientBorderBox extends StatelessWidget {
+  const GradientBorderBox({
+    super.key,
+    required this.child,
+    this.state = ExerciseTileState.plain,
+    this.radius = 12,
+    this.padding,
+    this.margin,
+    this.borderWidth,
+    this.fillColor,
+    this.borderGradient,
+  });
+
+  final Widget child;
+  final ExerciseTileState state;
+  final double radius;
+  final EdgeInsetsGeometry? padding;
+  final EdgeInsetsGeometry? margin;
+
+  /// 描边宽度（默认 2rpx = 1.w）
+  final double? borderWidth;
+
+  /// 自定义内层填充色（不传按 state 取）
+  final Color? fillColor;
+
+  /// 自定义描边渐变（不传按 state 取）
+  final Gradient? borderGradient;
+
+  Color get _fill {
+    if (fillColor != null) return fillColor!;
+    switch (state) {
+      case ExerciseTileState.plain:
+        return ExerciseColors.tileBg;
+      case ExerciseTileState.active:
+        return const Color(0xFFF0F8FF);
+      case ExerciseTileState.correct:
+        return const Color(0xFFEBFFFA);
+      case ExerciseTileState.error:
+        return const Color(0xFFFFF0F0);
+    }
+  }
+
+  Gradient? get _gradient {
+    if (borderGradient != null) return borderGradient;
+    switch (state) {
+      case ExerciseTileState.plain:
+        return null;
+      case ExerciseTileState.active:
+        // rgba(101,189,250,.1) → rgba(101,189,250,.5)
+        return const LinearGradient(
+          begin: Alignment.bottomCenter,
+          end: Alignment.topCenter,
+          colors: [Color(0x1A65BDFF), Color(0x8065BDFF)],
+        );
+      case ExerciseTileState.correct:
+        return const LinearGradient(
+          begin: Alignment.bottomCenter,
+          end: Alignment.topCenter,
+          colors: [Color(0x1A00CC96), Color(0x8000CC96)],
+        );
+      case ExerciseTileState.error:
+        return const LinearGradient(
+          begin: Alignment.bottomCenter,
+          end: Alignment.topCenter,
+          colors: [Color(0x1AFF4C4C), Color(0x80FF4C4C)],
+        );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final bw = borderWidth ?? 1.w;
+    final br = BorderRadius.circular(radius.r);
+    final outer = state == ExerciseTileState.plain
+        ? BoxDecoration(
+            color: _fill,
+            borderRadius: br,
+            border: Border.all(color: ExerciseColors.border, width: bw),
+          )
+        : BoxDecoration(
+            gradient: _gradient,
+            borderRadius: br,
+          );
+
+    return Container(
+      margin: margin,
+      decoration: outer,
+      child: Container(
+        margin: state == ExerciseTileState.plain ? null : EdgeInsets.all(bw),
+        padding: padding,
+        decoration: BoxDecoration(
+          color: state == ExerciseTileState.plain ? null : _fill,
+          borderRadius: BorderRadius.circular(
+            state == ExerciseTileState.plain ? radius.r : radius.r - bw,
+          ),
+        ),
+        child: child,
+      ),
+    );
+  }
+}
+
+/// 圆形选项标号的背景（对标 .options-li-Head 激活态径向渐变）
+Gradient? headGradientOf(ExerciseTileState state) {
+  switch (state) {
+    case ExerciseTileState.plain:
+      return null;
+    case ExerciseTileState.active:
+      // radial-gradient(110.77% 110% at 50.93% 90%, #74CAFF, transparent), #3D7DF5
+      return const RadialGradient(
+        center: Alignment(0.0186, 0.8),
+        radius: 1.1,
+        colors: [Color(0xFF74CAFF), ExerciseColors.primary],
+      );
+    case ExerciseTileState.correct:
+      return const RadialGradient(
+        center: Alignment(0.0262, 0.7894),
+        radius: 1.1,
+        colors: [Color(0xFF52E3A2), ExerciseColors.correct],
+      );
+    case ExerciseTileState.error:
+      return const RadialGradient(
+        center: Alignment(0.0262, 0.7894),
+        radius: 1.1,
+        colors: [Color(0xFFFF877C), Color(0xFFFF4C4C)],
+      );
+  }
+}
+
+/// 胶囊按钮样式（对标 default-button1/2/3/4）
+enum ExerciseButtonStyle {
+  /// default-button1：左→右蓝色渐变，交卷/提交
+  blueGradient,
+
+  /// default-button3：下→上浅蓝渐变，确定/确认
+  primary,
+
+  /// default-button2：白底蓝字带投影，弹窗次级按钮
+  secondary,
+
+  /// default-button4：白底蓝字蓝描边，继续答题
+  outline,
+}
+
+/// 通用胶囊按钮（92rpx 高、100rpx 圆角）
+class ExerciseButton extends StatelessWidget {
+  const ExerciseButton({
+    super.key,
+    required this.text,
+    required this.onTap,
+    this.style = ExerciseButtonStyle.primary,
+    this.width,
+    this.height,
+    this.fontSize,
+    this.enabled = true,
+  });
+
+  final String text;
+  final VoidCallback? onTap;
+  final ExerciseButtonStyle style;
+  final double? width;
+  final double? height;
+  final double? fontSize;
+  final bool enabled;
+
+  @override
+  Widget build(BuildContext context) {
+    final h = height ?? 46.h;
+    final fs = fontSize ?? 16.sp;
+
+    Gradient? gradient;
+    Color? color;
+    Color textColor;
+    Border? border;
+    List<BoxShadow> shadows = const [];
+
+    switch (style) {
+      case ExerciseButtonStyle.blueGradient:
+        // linear-gradient(90deg, #3373FF 0%, #3D7DF5 100%)
+        gradient = const LinearGradient(
+          colors: [ExerciseColors.primaryStrong, ExerciseColors.primary],
+        );
+        textColor = Colors.white;
+        shadows = [
+          BoxShadow(
+            color: const Color(0x4D3D7DF5),
+            offset: Offset(0, 7.5.h),
+            blurRadius: 15.h,
+          ),
+        ];
+        break;
+      case ExerciseButtonStyle.primary:
+        // linear-gradient(360deg, #8AD1FD -11.22%, #3C84FF 60.2%, #3D7DF5 100%)
+        gradient = const LinearGradient(
+          begin: Alignment.bottomCenter,
+          end: Alignment.topCenter,
+          colors: [
+            ExerciseColors.primaryLight,
+            ExerciseColors.primaryMid,
+            ExerciseColors.primary,
+          ],
+          stops: [0, 0.602, 1],
+        );
+        textColor = Colors.white;
+        shadows = [
+          BoxShadow(
+            color: const Color(0x143D7DF5),
+            offset: Offset(0, 7.5.h),
+            blurRadius: 5.65.h,
+          ),
+        ];
+        break;
+      case ExerciseButtonStyle.secondary:
+        color = const Color(0xFFFDFFFF);
+        textColor = ExerciseColors.primary;
+        shadows = [
+          BoxShadow(
+            color: const Color(0x143D7DF5),
+            offset: Offset(0, 7.5.h),
+            blurRadius: 5.65.h,
+          ),
+        ];
+        break;
+      case ExerciseButtonStyle.outline:
+        color = Colors.white;
+        textColor = ExerciseColors.primary;
+        border = Border.all(color: ExerciseColors.primary, width: 1.w);
+        break;
+    }
+
+    return Opacity(
+      opacity: enabled ? 1 : 0.5,
+      child: GestureDetector(
+        onTap: enabled ? onTap : null,
+        behavior: HitTestBehavior.opaque,
+        child: Container(
+          width: width,
+          height: h,
+          alignment: Alignment.center,
+          decoration: BoxDecoration(
+            color: color,
+            gradient: gradient,
+            borderRadius: BorderRadius.circular(50.r),
+            border: border,
+            boxShadow: shadows,
+          ),
+          child: Text(
+            text,
+            style: TextStyle(
+              fontSize: fs,
+              color: textColor,
+              fontWeight: FontWeight.w500,
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/features/conquerPackage/classExercises/widgets/feedback_popup.dart

@@ -0,0 +1,280 @@
+/// ============================================================
+/// 【FeedbackPopup】题目反馈弹层
+/// （1:1 迁移 Vue components/FeedbackPopup/FeedbackPopup.vue，
+///  BottomPopup → showModalBottomSheet）
+///
+/// 用法（与 Vue defineExpose 对齐）：
+///   `final key = GlobalKey<FeedbackPopupState>();`
+///   `FeedbackPopup(key: key);`
+///   `key.currentState!.open(id, questionId);`
+///
+/// 校验顺序：反馈内容 → 反馈类型；成功后自动关闭并重置。
+/// ============================================================
+library;
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/api/conquerPackage/classExercises/api.dart';
+import 'package:new_learn/core/components/center_toast.dart';
+import 'package:new_learn/core/components/upload.dart';
+
+import 'exercise_styles.dart';
+
+class _FeedbackOption {
+  const _FeedbackOption(this.label, this.value);
+  final String label;
+  final int value;
+}
+
+const List<_FeedbackOption> _kOptions = [
+  _FeedbackOption('题干错误', 1),
+  _FeedbackOption(' 解析看不懂', 2),
+  _FeedbackOption('答案错误', 3),
+  _FeedbackOption('选项错误', 4),
+  _FeedbackOption('批阅错误', 5),
+  _FeedbackOption('其他', 0),
+];
+
+class FeedbackPopup extends StatefulWidget {
+  const FeedbackPopup({super.key});
+
+  @override
+  State<FeedbackPopup> createState() => FeedbackPopupState();
+}
+
+class FeedbackPopupState extends State<FeedbackPopup> {
+  /// 打开反馈弹层
+  void open(dynamic id, dynamic questionId) {
+    showModalBottomSheet<void>(
+      context: context,
+      isScrollControlled: true,
+      backgroundColor: Colors.transparent,
+      builder: (_) => _FeedbackSheet(id: id, questionId: questionId),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) => const SizedBox.shrink();
+}
+
+class _FeedbackSheet extends StatefulWidget {
+  const _FeedbackSheet({required this.id, required this.questionId});
+
+  final dynamic id;
+  final dynamic questionId;
+
+  @override
+  State<_FeedbackSheet> createState() => _FeedbackSheetState();
+}
+
+class _FeedbackSheetState extends State<_FeedbackSheet> {
+  final Set<int> _selected = {};
+  final TextEditingController _contentController = TextEditingController();
+  List<UploadItem> _imageList = const [];
+  bool _submitting = false;
+
+  @override
+  void dispose() {
+    _contentController.dispose();
+    super.dispose();
+  }
+
+  Future<void> _submit() async {
+    if (_contentController.text.isEmpty) {
+      CenterToast.show(context, '请输入反馈内容');
+      return;
+    }
+    if (_selected.isEmpty) {
+      CenterToast.show(context, '请选择反馈类型');
+      return;
+    }
+
+    setState(() => _submitting = true);
+    // 提交中遮罩（对标 uni.showLoading），压在底部弹层之上
+    unawaited(showDialog<void>(
+      context: context,
+      barrierDismissible: false,
+      barrierColor: Colors.black38,
+      builder: (_) => const Center(child: CircularProgressIndicator()),
+    ));
+
+    final payload = {
+      'id': widget.id,
+      'questionId': widget.questionId,
+      'feedbackTypes': _selected.toList(),
+      'description': _contentController.text,
+      'images': _imageList.map((e) => e.url).toList(),
+    };
+
+    try {
+      final res = await ClassExercisesApi.instance.feedback(payload);
+      if (!mounted) return;
+      Navigator.of(context).pop(); // 关闭 loading
+      if (res != null && res != false) {
+        CenterToast.show(context, '反馈成功');
+        Navigator.of(context).pop(); // 关闭反馈弹层
+      } else {
+        CenterToast.show(context, '反馈失败，请检查网络');
+      }
+    } catch (_) {
+      if (!mounted) return;
+      Navigator.of(context).pop(); // 关闭 loading
+      CenterToast.show(context, '反馈失败，请检查网络');
+    } finally {
+      if (mounted) setState(() => _submitting = false);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Padding(
+      padding: EdgeInsets.only(bottom: MediaQuery.viewInsetsOf(context).bottom),
+      child: Container(
+        decoration: const BoxDecoration(
+          color: Colors.white,
+          borderRadius: BorderRadius.vertical(top: Radius.circular(10)),
+        ),
+        child: SafeArea(
+          top: false,
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              _buildHeader(),
+              Flexible(
+                child: SingleChildScrollView(
+                  padding: EdgeInsets.symmetric(horizontal: 14.w),
+                  child: Column(
+                    mainAxisSize: MainAxisSize.min,
+                    crossAxisAlignment: CrossAxisAlignment.start,
+                    children: [
+                      _buildOptionsGrid(),
+                      Padding(
+                        padding: EdgeInsets.symmetric(vertical: 20.h),
+                        child: _buildTextarea(),
+                      ),
+                      Upload(
+                        title: '上传图片',
+                        maxCount: 5,
+                        type: UploadType.feedback,
+                        initialImageList: _imageList,
+                        onChanged: (list) =>
+                            setState(() => _imageList = list),
+                      ),
+                      Padding(
+                        padding: EdgeInsets.only(top: 30.h),
+                        child: ExerciseButton(
+                          text: '提交反馈',
+                          style: ExerciseButtonStyle.blueGradient,
+                          width: double.infinity,
+                          enabled: !_submitting,
+                          onTap: _submit,
+                        ),
+                      ),
+                      SizedBox(height: 20.h),
+                    ],
+                  ),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _buildHeader() {
+    return Container(
+      height: 60.h, // 120rpx
+      padding: EdgeInsets.symmetric(horizontal: 14.w),
+      decoration: const BoxDecoration(
+        gradient: LinearGradient(
+          begin: Alignment.topCenter,
+          end: Alignment.bottomCenter,
+          colors: [Color(0xFFE1EEFF), Colors.white],
+        ),
+      ),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: [
+          SizedBox(width: 24.w),
+          Text(
+            '题目反馈',
+            style: TextStyle(fontSize: 16.sp, color: ExerciseColors.title),
+          ),
+          GestureDetector(
+            onTap: () => Navigator.of(context).pop(),
+            behavior: HitTestBehavior.opaque,
+            child: Icon(Icons.close, size: 22.w, color: ExerciseColors.title),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildOptionsGrid() {
+    final chipW = (1.sw - 14.w * 2 - 16.w * 2) / 3;
+    return Wrap(
+      spacing: 16.w, // column-gap 32rpx
+      runSpacing: 10.h, // row-gap 20rpx
+      children: [
+        for (final opt in _kOptions)
+          GestureDetector(
+            onTap: () => setState(() {
+              if (!_selected.remove(opt.value)) _selected.add(opt.value);
+            }),
+            behavior: HitTestBehavior.opaque,
+            child: Container(
+              width: chipW,
+              padding: EdgeInsets.only(top: 11.w, bottom: 13.5.h),
+              alignment: Alignment.center,
+              decoration: BoxDecoration(
+                color: _selected.contains(opt.value)
+                    ? const Color(0xFF6195F6)
+                    : const Color(0xFFF5F8FA),
+                borderRadius: BorderRadius.circular(6.r),
+              ),
+              child: Text(
+                opt.label,
+                style: TextStyle(
+                  fontSize: 14.sp,
+                  color: _selected.contains(opt.value)
+                      ? Colors.white
+                      : const Color(0xFF687FAD),
+                ),
+              ),
+            ),
+          ),
+      ],
+    );
+  }
+
+  Widget _buildTextarea() {
+    return TextField(
+      controller: _contentController,
+      maxLines: 4,
+      minLines: 4,
+      maxLength: 500,
+      onChanged: (_) => setState(() {}),
+      decoration: InputDecoration(
+        hintText: '请描述您的反馈...',
+        hintStyle: TextStyle(fontSize: 14.sp, color: const Color(0xFFB3C2E0)),
+        counterStyle: TextStyle(fontSize: 12.sp, color: const Color(0xFFB3C2E0)),
+        filled: true,
+        fillColor: const Color(0xFFFAFBFD),
+        contentPadding: EdgeInsets.all(12.w),
+        enabledBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(8.r),
+          borderSide: BorderSide(color: ExerciseColors.border, width: 1.w),
+        ),
+        focusedBorder: OutlineInputBorder(
+          borderRadius: BorderRadius.circular(8.r),
+          borderSide:
+              BorderSide(color: ExerciseColors.primary, width: 1.w),
+        ),
+      ),
+      style: TextStyle(fontSize: 14.sp, color: ExerciseColors.title),
+    );
+  }
+}

lib/features/conquerPackage/classExercises/widgets/obj_options.dart

@@ -0,0 +1,278 @@
+/// ============================================================
+/// 【ObjOptions】客观题选项列表（1:1 迁移 Vue components/objOptions）
+///
+/// 交互点（与 Vue 一致）：
+///   - props: options / answerData{correctAnswer,myAnswer} / answer /
+///            mode('edit'|'view') / questionType
+///   - edit：点击选项 emit change({...item, userAnswer: hxdb HTML})
+///           duoxuanti 多选解析已有答案后 toggle，按字母排序
+///           panduanti 取 optionLabel 或选项纯文本
+///   - view：不响应点击；正确项绿、选错项红
+///   - panduanti 标号位渲染本地正确/错误图标
+/// ============================================================
+library;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/components/rich_text_content.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+
+import 'exercise_styles.dart';
+
+enum ObjOptionMode { edit, view }
+
+/// 对标 Vue answerData: { correctAnswer, myAnswer }
+class ObjOptionAnswerData {
+  const ObjOptionAnswerData({
+    required this.correctAnswer,
+    required this.myAnswer,
+  });
+
+  final String correctAnswer;
+  final String myAnswer;
+}
+
+/// change 事件载荷：{...option, userAnswer: String}
+typedef ObjOptionChanged = void Function(Map<String, dynamic> payload);
+
+class ObjOptions extends StatelessWidget {
+  const ObjOptions({
+    super.key,
+    required this.options,
+    this.answerData,
+    this.answer = '',
+    this.mode = ObjOptionMode.view,
+    this.questionType = '',
+    this.onChanged,
+  });
+
+  /// [{optionLabel, options}]
+  final List<Map<String, String>> options;
+
+  /// view 模式答案对比数据；edit 模式通常不传
+  final ObjOptionAnswerData? answerData;
+
+  /// edit 模式当前 userAnswer
+  final String answer;
+  final ObjOptionMode mode;
+
+  /// data.questionTypes，如 danxuanti / duoxuanti / panduanti
+  final String questionType;
+  final ObjOptionChanged? onChanged;
+
+  bool get _isPanDuan => questionType == 'panduanti';
+
+  /// 与 correctAnswer 一致的富文本外壳，内容为纯文本
+  String _buildHxdbAnswerHtml(String plain) {
+    if (plain.isEmpty) return '';
+    final text = plain.trim();
+    if (text.isEmpty) return '';
+    return '<div class="hxdb-answer" name="hxdbAnswer">'
+        '<p data-pm-slice="1 1 []">'
+        '<span style="font-family: 宋体;"></span>$text</p></div>';
+  }
+
+  /// 多选：从已有答案解析出选项字母（支持 hxdb HTML 或 A,B,D）
+  List<String> _parseMultiSelectedLabels(
+    String answerStr,
+    List<String> validLabels,
+  ) {
+    final plain = stripAnswerPlain(answerStr);
+    if (plain.isEmpty) return const [];
+    final valid = validLabels.where((e) => e.isNotEmpty).toSet();
+    if (plain.contains(',')) {
+      return plain
+          .split(',')
+          .map((s) => s.trim())
+          .where(valid.contains)
+          .toList();
+    }
+    return plain.split('').where(valid.contains).toList();
+  }
+
+  void _onClick(Map<String, String> item) {
+    if (mode != ObjOptionMode.edit) return;
+    final changed = onChanged;
+    if (changed == null) return;
+
+    final validLabels =
+        options.map((o) => o['optionLabel'] ?? '').where((e) => e.isNotEmpty).toList();
+    final label = item['optionLabel'] ?? '';
+
+    if (questionType == 'duoxuanti') {
+      final myAnswer = answerData != null &&
+          answerData!.myAnswer.trim().isNotEmpty
+          ? answerData!.myAnswer
+          : answer;
+      final set = _parseMultiSelectedLabels(myAnswer, validLabels).toSet();
+      if (label.isNotEmpty && set.contains(label)) {
+        set.remove(label);
+      } else if (label.isNotEmpty) {
+        set.add(label);
+      }
+      final sorted = (set.toList()..sort()).join();
+      changed({...item, 'userAnswer': _buildHxdbAnswerHtml(sorted)});
+      return;
+    }
+
+    final plain = _isPanDuan
+        ? (label.isNotEmpty ? label : stripAnswerPlain(item['options']))
+        : label;
+    changed({...item, 'userAnswer': _buildHxdbAnswerHtml(plain)});
+  }
+
+  /// 选项内容富文本（td 转行内容器并清理头部空白）
+  String _formatOption(String html) {
+    if (html.isEmpty) return '';
+    var res = cleanRichText(html);
+    res = res.replaceAll(
+      RegExp(r'<td\b[^>]*>', caseSensitive: false),
+      '<span>',
+    );
+    res = res.replaceAll(
+      RegExp(r'</td>', caseSensitive: false),
+      '</span>',
+    );
+    res = res.replaceAll(RegExp(r'^(?:&nbsp;|\s)+', caseSensitive: false), '');
+    return res;
+  }
+
+  bool _isTrueOption(Map<String, String> item) {
+    final label = item['optionLabel'] ?? '';
+    final opts = item['options'] ?? '';
+    return label == '正确' || label == '✓' || label == 'A' || opts.contains('正确');
+  }
+
+  ExerciseTileState _stateOf(Map<String, String> item) {
+    final label = item['optionLabel'] ?? '';
+    if (label.isEmpty) return ExerciseTileState.plain;
+
+    var correctStr = '';
+    var myStr = '';
+    if (answerData != null) {
+      correctStr = answerData!.correctAnswer
+          .replaceAll(RegExp(r'<[^>]+>'), '')
+          .trim();
+      myStr = answerData!.myAnswer
+          .replaceAll(RegExp(r'<[^>]+>'), '')
+          .trim();
+    } else {
+      correctStr = answer.replaceAll(RegExp(r'<[^>]+>'), '').trim();
+      if (mode == ObjOptionMode.edit) {
+        // 兼容老代码：没传 answerData 时把 answer 当作选中的高亮
+        myStr = correctStr;
+      }
+    }
+
+    var isItemMine = myStr.contains(label);
+    var isItemCorrect = correctStr.contains(label);
+
+    if (_isPanDuan) {
+      final opts = item['options'] ?? '';
+      if (label == '正确' || opts.contains('正确')) {
+        isItemCorrect = ['正确', '✓', 'T', 'true', '对'].any(correctStr.contains);
+        isItemMine = ['正确', '✓', 'T', 'true', '对'].any(myStr.contains);
+      } else if (label == '错误' || opts.contains('错误') || opts.contains('错')) {
+        isItemCorrect = ['错误', '×', 'F', 'false', '错'].any(correctStr.contains);
+        isItemMine = ['错误', '×', 'F', 'false', '错'].any(myStr.contains);
+      }
+    }
+
+    if (mode == ObjOptionMode.edit) {
+      return isItemMine ? ExerciseTileState.active : ExerciseTileState.plain;
+    }
+    if (isItemCorrect) return ExerciseTileState.correct;
+    if (isItemMine && !isItemCorrect) return ExerciseTileState.error;
+    return ExerciseTileState.plain;
+  }
+
+  String _panDuanIcon(Map<String, String> item, ExerciseTileState state) {
+    final isActive = state != ExerciseTileState.plain;
+    if (_isTrueOption(item)) {
+      return isActive
+          ? 'assets/img/my/correct-active-icon.png'
+          : 'assets/img/my/correct-inactive-icon.png';
+    }
+    return isActive
+        ? 'assets/img/my/wrong-active-icon.png'
+        : 'assets/img/my/wrong-inactive-icon.png';
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        for (var i = 0; i < options.length; i++)
+          Padding(
+            padding: EdgeInsets.only(bottom: i == options.length - 1 ? 0 : 14.h),
+            child: _buildItem(options[i]),
+          ),
+      ],
+    );
+  }
+
+  Widget _buildItem(Map<String, String> item) {
+    final state = _stateOf(item);
+    return GestureDetector(
+      onTap: () => _onClick(item),
+      behavior: HitTestBehavior.opaque,
+      child: GradientBorderBox(
+        state: state,
+        radius: 12,
+        padding: EdgeInsets.all(12.w), // 24rpx
+        child: Row(
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: [
+            _buildHead(item, state),
+            SizedBox(width: 14.w), // 76 标号 + 28 间距 = 104rpx
+            Expanded(
+              child: RichTextContent(
+                html: _formatOption(item['options'] ?? ''),
+                textStyle: TextStyle(
+                  fontSize: 15.sp,
+                  height: 1.5,
+                  color: ExerciseColors.title,
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildHead(Map<String, String> item, ExerciseTileState state) {
+    final label = item['optionLabel'] ?? '';
+    final active = state != ExerciseTileState.plain;
+    return Container(
+      width: 38.w, // 76rpx
+      height: 38.w,
+      alignment: Alignment.center,
+      decoration: BoxDecoration(
+        shape: BoxShape.circle,
+        color: active ? null : Colors.white,
+        gradient: headGradientOf(state),
+        border: active
+            ? null
+            : Border.all(color: ExerciseColors.border, width: 1.w),
+      ),
+      clipBehavior: Clip.antiAlias,
+      child: _isPanDuan
+          ? Image.asset(
+              _panDuanIcon(item, state),
+              width: 20.w, // 40rpx
+              height: 20.w,
+              fit: BoxFit.contain,
+            )
+          : Text(
+              label,
+              style: TextStyle(
+                fontSize: 18.sp, // 36rpx
+                fontWeight: FontWeight.w600,
+                color: active ? Colors.white : ExerciseColors.title,
+              ),
+            ),
+    );
+  }
+}

lib/features/conquerPackage/classExercises/widgets/pause_popup.dart

@@ -0,0 +1,227 @@
+/// ============================================================
+/// 【PausePopup】暂停答题弹窗
+/// （1:1 迁移 Vue components/PausePopup/PausePopup.vue）
+///
+/// - 遮罩 rgba(0,0,0,.7)，点击任意位置关闭（onClose）
+/// - 组件独立秒表：每次 show=true 从 0 开始计时，HH:MM:SS（不足 1 小时隐去小时）
+/// - 文案：共 {totalCount} 道题，还剩 {remainingCount} 道题待完成
+/// ============================================================
+library;
+
+import 'dart:async';
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+
+import 'exercise_styles.dart';
+
+class PausePopup extends StatefulWidget {
+  const PausePopup({
+    super.key,
+    required this.show,
+    this.totalCount = 20,
+    this.remainingCount = 0,
+    this.onClose,
+  });
+
+  final bool show;
+  final int totalCount;
+  final int remainingCount;
+  final VoidCallback? onClose;
+
+  @override
+  State<PausePopup> createState() => _PausePopupState();
+}
+
+class _PausePopupState extends State<PausePopup> {
+  int _seconds = 0;
+  Timer? _timer;
+
+  @override
+  void initState() {
+    super.initState();
+    _syncTimer(widget.show);
+  }
+
+  @override
+  void didUpdateWidget(covariant PausePopup oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.show != widget.show) {
+      _syncTimer(widget.show);
+    }
+  }
+
+  @override
+  void dispose() {
+    _stopTimer();
+    super.dispose();
+  }
+
+  void _syncTimer(bool show) {
+    if (show) {
+      _startTimer();
+    } else {
+      _stopTimer();
+    }
+  }
+
+  void _startTimer() {
+    _timer?.cancel();
+    _seconds = 0;
+    _timer = Timer.periodic(const Duration(seconds: 1), (_) {
+      if (mounted) setState(() => _seconds++);
+    });
+  }
+
+  void _stopTimer() {
+    _timer?.cancel();
+    _timer = null;
+  }
+
+  String _two(int v) => v < 10 ? '0$v' : '$v';
+
+  @override
+  Widget build(BuildContext context) {
+    if (!widget.show) return const SizedBox.shrink();
+    final isPad = isPadDevice(context);
+
+    final hours = _seconds ~/ 3600;
+    final showHours = hours > 0;
+    final minutes = (_seconds % 3600) ~/ 60;
+    final secs = _seconds % 60;
+
+    final unitW = isPad ? 49.w : 44.w; // 88/98rpx
+    final unitH = isPad ? 45.h : 40.h; // 80/90rpx
+
+    return Positioned.fill(
+      child: GestureDetector(
+        behavior: HitTestBehavior.opaque,
+        onTap: widget.onClose,
+        child: ColoredBox(
+          color: const Color(0xB3000000), // rgba(0,0,0,.7)
+          child: Center(
+            child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  Transform.translate(
+                    offset: Offset(isPad ? -35.w : 0, 0), // margin-left: -70rpx
+                    child: Container(
+                      width: isPad ? 315.5.w : 250.w, // 500/631rpx
+                      height: isPad ? 299.5.h : 249.h, // 498/599rpx
+                      padding: EdgeInsets.only(top: isPad ? 175.h : 137.5.h),
+                      decoration: BoxDecoration(
+                        image: DecorationImage(
+                          image: CachedNetworkImageProvider(
+                            ImgUrl.build(
+                              isPad
+                                  ? '/StaticResource/2026-06-03/conquer-pause-bg-Pad1780466965818.png'
+                                  : '/StaticResource/2026-04-08/conquer-pause-bg.png',
+                            ),
+                          ),
+                          fit: BoxFit.fill,
+                        ),
+                      ),
+                      child: Column(
+                        mainAxisSize: MainAxisSize.min,
+                        children: [
+                          Row(
+                            mainAxisAlignment: MainAxisAlignment.center,
+                            children: [
+                              if (showHours) ...[
+                                _timeUnit(unitW, unitH, _two(hours)),
+                                _timeSep(),
+                              ],
+                              _timeUnit(unitW, unitH, _two(minutes)),
+                              _timeSep(),
+                              _timeUnit(unitW, unitH, _two(secs)),
+                            ],
+                          ),
+                          SizedBox(height: 15.h), // margin-t-30
+                          Text.rich(
+                            TextSpan(
+                              style: TextStyle(
+                                fontSize: 13.sp, // 26rpx
+                                color: ExerciseColors.subtitle,
+                              ),
+                              children: [
+                                const TextSpan(text: '共'),
+                                TextSpan(
+                                  text: '${widget.totalCount}',
+                                  style: const TextStyle(
+                                    color: Color(0xFF1578FF),
+                                  ),
+                                ),
+                                const TextSpan(text: '道题，还剩'),
+                                TextSpan(
+                                  text: '${widget.remainingCount}',
+                                  style: const TextStyle(
+                                    color: Color(0xFF1578FF),
+                                  ),
+                                ),
+                                const TextSpan(text: '道题待完成'),
+                              ],
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                  SizedBox(height: 25.h), // margin-t-50
+                  Text(
+                    '点击任意位置继续',
+                    style: TextStyle(
+                      fontSize: 14.sp, // 28rpx
+                      color: const Color(0xFFB4C2E0),
+                    ),
+                  ),
+                ],
+              ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _timeUnit(double w, double h, String text) {
+    return Container(
+      width: w,
+      height: h,
+      alignment: Alignment.center,
+      decoration: BoxDecoration(
+        color: const Color(0xFFF2F8FF),
+        borderRadius: BorderRadius.circular(6.r),
+        boxShadow: [
+          BoxShadow(
+            color: const Color(0x1A1578FF),
+            offset: Offset(0, 2.h),
+            blurRadius: 6.h,
+          ),
+        ],
+      ),
+      child: Text(
+        text,
+        style: TextStyle(
+          fontSize: 20.sp, // 40rpx
+          fontWeight: FontWeight.w600,
+          color: const Color(0xFF1578FF),
+        ),
+      ),
+    );
+  }
+
+  Widget _timeSep() {
+    return Padding(
+      padding: EdgeInsets.symmetric(horizontal: 10.w), // margin-rl-10 + 视觉间距
+      child: Text(
+        ':',
+        style: TextStyle(
+          fontSize: 20.sp,
+          fontWeight: FontWeight.w600,
+          color: const Color(0xFF1578FF),
+        ),
+      ),
+    );
+  }
+}

lib/features/conquerPackage/classExercises/widgets/question_plan_countdown.dart

@@ -0,0 +1,132 @@
+/// ============================================================
+/// 【QuestionPlanCountDown】单题建议作答时长倒计时
+/// （1:1 迁移 Vue classExercises/QuestionPlanCountDown.vue，
+///  底层由 uview up-count-down 换为 Flutter Timer.periodic）
+///
+/// 对外方法（`GlobalKey<QuestionPlanCountDownState>` 调用）：
+///   start / pause / reset / getRemainTime（毫秒）
+/// autoStart：initState 后自动开始；到点只触发一次 onFinish(key)。
+/// ============================================================
+library;
+
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+
+class QuestionPlanCountDown extends StatefulWidget {
+  const QuestionPlanCountDown({
+    super.key,
+    this.questionKey,
+    required this.timeMs,
+    this.format = 'mm:ss',
+    this.onFinish,
+    this.textStyle,
+  });
+
+  final Object? questionKey;
+
+  /// 剩余总时长（毫秒）
+  final int timeMs;
+
+  /// 'mm:ss'（本页另有 HH:mm:ss 的动态格式，按是否含 HH 切换）
+  final String format;
+  final ValueChanged<Object?>? onFinish;
+  final TextStyle? textStyle;
+
+  @override
+  State<QuestionPlanCountDown> createState() => QuestionPlanCountDownState();
+}
+
+class QuestionPlanCountDownState extends State<QuestionPlanCountDown> {
+  Timer? _timer;
+  late int _remainMs;
+  bool _finished = false;
+
+  @override
+  void initState() {
+    super.initState();
+    _remainMs = widget.timeMs;
+    // autoStart
+    start();
+  }
+
+  @override
+  void didUpdateWidget(covariant QuestionPlanCountDown oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.timeMs != widget.timeMs) {
+      reset();
+      start();
+    }
+  }
+
+  @override
+  void dispose() {
+    _timer?.cancel();
+    _timer = null;
+    super.dispose();
+  }
+
+  void start() {
+    if (_timer != null) return;
+    _timer = Timer.periodic(const Duration(milliseconds: 200), (_) {
+      if (!mounted) return;
+      _remainMs -= 200;
+      if (_remainMs <= 0) {
+        _remainMs = 0;
+        pause();
+        if (!_finished) {
+          _finished = true;
+          widget.onFinish?.call(widget.questionKey);
+        }
+      }
+      setState(() {});
+    });
+  }
+
+  void pause() {
+    _timer?.cancel();
+    _timer = null;
+  }
+
+  /// 重置回初始时长并暂停（与 uview reset 行为一致，调用方需再 start）
+  void reset() {
+    pause();
+    _remainMs = widget.timeMs;
+    _finished = false;
+    if (mounted) setState(() {});
+  }
+
+  /// 剩余毫秒
+  int getRemainTime() => _remainMs < 0 ? 0 : _remainMs;
+
+  String _two(int v) => v < 10 ? '0$v' : '$v';
+
+  String get _display {
+    // 展示向上取整：刚开始显示完整秒
+    final seconds = (_remainMs / 1000).ceil().clamp(0, 1 << 31);
+    final h = seconds ~/ 3600;
+    final m = (seconds % 3600) ~/ 60;
+    final s = seconds % 60;
+    if (widget.format.contains('HH')) {
+      return '${_two(h)}:${_two(m)}:${_two(s)}';
+    }
+    return '${_two(m)}:${_two(s)}';
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    // 字体的 ascent/descent 度量让文字视觉偏下，整体上移 2px 校正
+    return Transform.translate(
+      offset: const Offset(0, -2),
+      child: Text(
+        _display,
+        style: widget.textStyle ??
+            const TextStyle(
+              color: Colors.white,
+              fontSize: 12,
+              fontWeight: FontWeight.w500,
+            ),
+      ),
+    );
+  }
+}

lib/features/conquerPackage/report/report_page.dart

@@ -0,0 +1,885 @@
+/// ============================================================
+/// 【ReportPage】攻克报告页
+/// 1:1 对标 Vue pages/conquerPackage/report/report.vue
+///
+/// 路由 extra：
+///   - recordId 学习记录 id（同时用于 GetReport/{id}）
+///   - packId   攻克包 id（跳解析页时作为 totalPackId）
+///   - from     来源（submit=交卷后进入：隐藏返回、显示小房子）
+/// ============================================================
+library;
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:go_router/go_router.dart';
+import 'package:new_learn/core/api/conquerPackage/classExercises/api.dart';
+import 'package:new_learn/core/providers/user_provider.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/core/utils/question/exam_answer_card.dart';
+import 'package:new_learn/core/utils/question/question_constant.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/controllers/exercise_timing.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/widgets/exercise_styles.dart';
+import 'package:new_learn/features/conquerPackage/report/widgets/conquer_poster_popup.dart';
+import 'package:new_learn/features/conquerPackage/report/widgets/guide_modal.dart';
+import 'package:new_learn/features/conquerPackage/report/widgets/semicircle_progress.dart';
+
+class ReportPage extends ConsumerStatefulWidget {
+  const ReportPage({super.key, this.extra});
+
+  final Map<String, dynamic>? extra;
+
+  @override
+  ConsumerState<ReportPage> createState() => _ReportPageState();
+}
+
+class _ReportPageState extends ConsumerState<ReportPage> {
+  // ===================== 颜色（对标 report.vue / common.scss） =====================
+  static const Color _bg = Color(0xFFF5F8FA);
+  static const Color _title = Color(0xFF1D2B47);
+  static const Color _primary = Color(0xFF3D7DF5);
+  static const Color _subtitle = Color(0xFF687FAD);
+  static const Color _success = Color(0xFF00CC96);
+  static const Color _error = Color(0xFFFF5252);
+  static const Color _unanswered = Color(0xFF94A5B8);
+  static const Color _failText = Color(0xFFB4C2E0);
+
+  // ===================== 路由参数 =====================
+  String _recordId = '';
+  String _packId = '';
+  bool _isFromSubmit = false;
+
+  // ===================== 页面数据 =====================
+  Map<String, dynamic> _data = <String, dynamic>{};
+  List<Map<String, dynamic>> _answerCard = [];
+  bool _loading = true;
+
+  bool _showPoster = false;
+  bool _showGuide = false;
+
+  // 跳转防连点（对标 navigateToOnce：2 秒节流 + 原子锁 + 1200ms 兜底解锁）
+  bool _navigating = false;
+  int _lastNavigateAt = 0;
+
+  @override
+  void initState() {
+    super.initState();
+    final extra = widget.extra ?? const <String, dynamic>{};
+    _recordId = '${extra['recordId'] ?? ''}';
+    _packId = '${extra['packId'] ?? ''}';
+    _isFromSubmit = extra['from'] == 'submit';
+    WidgetsBinding.instance.addPostFrameCallback((_) => _load());
+  }
+
+  // ===================== 数据加载（对标 GetSubmitReportFn） =====================
+
+  Future<void> _load() async {
+    setState(() => _loading = true);
+    try {
+      final res =
+          await ClassExercisesApi.instance.getSubmitReport(_recordId);
+
+      final user = ref.read(currentUserProvider).value;
+      final userName = (user?.userName.isNotEmpty ?? false)
+          ? user!.userName
+          : '我';
+      final userAvatar = user?.avatar ?? '';
+
+      final data = Map<String, dynamic>.from(res.raw);
+      // 后端数值字段可能返回 String，统一规范为 num，避免 build 中 as num 崩溃
+      final accuracyRate =
+          num.tryParse('${data['accuracyRate'] ?? 0}') ?? 0;
+
+      setState(() {
+        _data = {
+          ...data,
+          'userName': userName,
+          'userAvatar': userAvatar,
+          'accuracyRate': accuracyRate,
+        };
+      });
+
+      // questions 解析 / 答题卡构建单独兜底：单题异常不影响头部与统计
+      final questions = res.questions;
+      if (questions.isNotEmpty) {
+        try {
+          final subjectType =
+              getSubjectTypeById(data['baseSubjectId']) ?? 0;
+          final parsed = questions.map((item) {
+            item['iSFilllankItemUpload'] = subjectType;
+            return parseQuestionData(item, mergeOriginalChilds: true);
+          }).toList();
+          var questionsData = appendQuestionSort(parsed);
+          questionsData =
+              appendExamQuestionChildOptionStatus(questionsData,
+                  data['baseSubjectId']);
+          final card = buildExamAnswerCard(questionsData);
+          setState(() => _answerCard = card);
+        } catch (e) {
+          debugPrint('GetSubmitReport build answerCard error: $e');
+        }
+      }
+
+      // status 1 已攻克 / 2 未攻克 → 弹海报
+      final status = _di('status');
+      if (status == 1 || status == 2) {
+        WidgetsBinding.instance.addPostFrameCallback((_) {
+          if (mounted) setState(() => _showPoster = true);
+        });
+      }
+    } catch (e) {
+      _toast('获取报告失败，请稍后重试');
+    } finally {
+      if (mounted) setState(() => _loading = false);
+    }
+  }
+
+  int _di(String key) => int.tryParse('${_data[key] ?? 0}') ?? 0;
+
+  num get _accuracyRate =>
+      num.tryParse('${_data['accuracyRate'] ?? 0}') ?? 0;
+
+  bool get _hasHandouts {
+    final h = _data['handouts'];
+    return h is List && h.isNotEmpty;
+  }
+
+  // 回答状态（未回答=0, 判题中=1, 正确=10, 错误=11, 部分错误=12）
+  Color _statusColor(dynamic status) {
+    final s = int.tryParse('$status') ?? 0;
+    if (s == 10) return _success;
+    if (s == 11 || s == 12 || s == 1) return _error;
+    return _unanswered;
+  }
+
+  Color _statusBg(dynamic status) {
+    final s = int.tryParse('$status') ?? 0;
+    if (s == 10) return const Color(0xFFE6FAF4);
+    if (s == 11 || s == 12 || s == 1) return const Color(0xFFFFF2F2);
+    return const Color(0xFFF5F7FA);
+  }
+
+  // ===================== 跳转（对标 navigateToOnce） =====================
+
+  void _navigateToOnce(String location, Map<String, dynamic> extra) {
+    final now = DateTime.now().millisecondsSinceEpoch;
+    if (now - _lastNavigateAt < 2000) return;
+    if (_navigating) return;
+    _lastNavigateAt = now;
+    _navigating = true;
+    Future.delayed(const Duration(milliseconds: 1200), () {
+      _navigating = false;
+    });
+    context.push(location, extra: extra).whenComplete(() {
+      _navigating = false;
+    });
+  }
+
+  /// 查看讲义
+  void _getLectureNotes() {
+    final id = '${_data['id'] ?? ''}';
+    _navigateToOnce(
+      '/conquerPackage/beforeDuringClass',
+      {
+        'status': '1',
+        'packId': id,
+        'recordId': id,
+        'type': 'view',
+      },
+    );
+  }
+
+  /// 全部解析 / 点答题卡题号（带 targetSort）
+  void _handleShowAnswerCard([Map<String, dynamic>? question]) {
+    final targetSort = int.tryParse('${question?['sort'] ?? 0}') ?? 0;
+    _navigateToOnce(
+      '/conquerPackage/classExercises',
+      {
+        'courseId': '${_data['courseId'] ?? ''}',
+        'packId': '${_data['id'] ?? ''}',
+        'type': 'view',
+        'totalPackId': _packId,
+        if (targetSort > 0) 'targetSort': targetSort,
+      },
+    );
+  }
+
+  /// 错题解析
+  void _handleWrongQuestionAnalysis() {
+    _navigateToOnce(
+      '/conquerPackage/classExercises',
+      {
+        'courseId': '${_data['courseId'] ?? ''}',
+        'packId': '${_data['id'] ?? ''}',
+        'type': 'view',
+        'totalPackId': _packId,
+        'isWrong': true,
+      },
+    );
+  }
+
+  /// 海报关闭 → 未看过引导时延迟 500ms 弹引导
+  void _handlePosterClose() {
+    setState(() => _showPoster = false);
+    final isShowGuide = ref.read(currentUserProvider).value?.isShowGuide;
+    if (isShowGuide == false) {
+      Future.delayed(const Duration(milliseconds: 500), () {
+        if (mounted) setState(() => _showGuide = true);
+      });
+    }
+  }
+
+  void _toast(String text) {
+    if (!mounted) return;
+    ScaffoldMessenger.of(context)
+      ..hideCurrentSnackBar()
+      ..showSnackBar(
+        SnackBar(
+          content: Text(text),
+          duration: const Duration(seconds: 2),
+          behavior: SnackBarBehavior.floating,
+        ),
+      );
+  }
+
+  // ===================== Build =====================
+
+  @override
+  Widget build(BuildContext context) {
+    final pad = isPadDevice(context);
+    final correct = _di('correctQuestionCount');
+    final total = _di('totalQuestionCount');
+    final allCorrect = correct == total && total > 0;
+
+    return Scaffold(
+      body: Stack(
+        children: [
+          // HeaderBac 顶部背景图（固定屏幕顶部，与 classExercises 页一致）
+          Positioned(
+            top: 0,
+            left: 0,
+            right: 0,
+            child: CachedNetworkImage(
+              imageUrl: ImgUrl.build(
+                '/StaticResource/2026-05-26/my-header-bg-default1779775984375.png',
+              ),
+              fit: BoxFit.fitWidth,
+              width: double.infinity,
+              placeholder: (_, _) => const SizedBox.shrink(),
+              errorWidget: (_, _, _) => const SizedBox.shrink(),
+            ),
+          ),
+          // 内容层：非定位 Column + Expanded，让滚动区严格撑满整屏
+          // （与 class_exercises_page 相同的已验证骨架）
+          SafeArea(
+            bottom: false,
+            child: Column(
+              children: [
+                _buildNavBar(),
+                Expanded(
+                  child: SingleChildScrollView(
+                    child: Column(
+                      crossAxisAlignment: CrossAxisAlignment.start,
+                      children: [
+                        _buildReportBac(pad),
+                        _buildAnswerCard(),
+                        // 底部固定栏留白 220rpx
+                        SizedBox(height: 110.h),
+                      ],
+                    ),
+                  ),
+                ),
+              ],
+            ),
+          ),
+          _buildFooter(allCorrect: allCorrect),
+          ConquerPosterPopup(
+            show: _showPoster,
+            status: _di('status'),
+            name: '${_data['name'] ?? ''}',
+            accuracyRate: _accuracyRate,
+            overcomeTimeSecond: _di('overcomeTimeSecond'),
+            userName: '${_data['userName'] ?? '我'}',
+            userAvatar: '${_data['userAvatar'] ?? ''}',
+            onClose: _handlePosterClose,
+          ),
+          GuideModal(
+            show: _showGuide,
+            onClose: () => setState(() => _showGuide = false),
+          ),
+          if (_loading) _buildLoadingMask(),
+        ],
+      ),
+    );
+  }
+
+  // ---------- 加载遮罩（对标 uni.showLoading 加载中...） ----------
+
+  Widget _buildLoadingMask() {
+    return const Positioned.fill(
+      child: ColoredBox(
+        color: Color(0x33000000),
+        child: Center(
+          child: Card(
+            color: Color(0xCC000000),
+            child: Padding(
+              padding: EdgeInsets.symmetric(horizontal: 24, vertical: 20),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  CircularProgressIndicator(
+                    strokeWidth: 3,
+                    color: Colors.white,
+                  ),
+                  SizedBox(height: 12),
+                  Text(
+                    '加载中...',
+                    style: TextStyle(color: Colors.white, fontSize: 14),
+                  ),
+                ],
+              ),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+
+  // ===================== 滚动内容（HeaderBac + NavBar + 卡片） =====================
+  // 背景图 / 滚动体 / NavBar 已在 build 的外层全屏 Stack 中分层，见 build()。
+
+  // ---------- NavBar（对标 NavBar.vue：居中标题 + 返回/小房子） ----------
+  // 状态栏高度由外层 SafeArea 处理，这里只绘制 44px 的导航条。
+
+  Widget _buildNavBar() {
+    return SizedBox(
+      width: double.infinity,
+      height: 44.h,
+      child: Stack(
+        children: [
+          Center(
+            child: Padding(
+              padding: EdgeInsets.only(left: 10.w),
+              child: Text(
+                '攻克报告',
+                maxLines: 1,
+                style: TextStyle(
+                  fontSize: 17.sp,
+                  fontWeight: FontWeight.w400,
+                  color: Colors.black,
+                ),
+              ),
+            ),
+          ),
+          Positioned(
+            left: 12.w,
+            top: 0,
+            bottom: 0,
+            child: Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                if (!_isFromSubmit)
+                  _navIcon(
+                    '/StaticResource/2026-04-01/return.png',
+                    onTap: _handleBack,
+                  ),
+                if (_isFromSubmit)
+                  _navIcon(
+                    '/StaticResource/2026-06-02/homesa1780391437267.png',
+                    onTap: () => context.go('/'),
+                  ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _navIcon(String path, {required VoidCallback onTap}) {
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: onTap,
+      child: Padding(
+        padding: EdgeInsets.symmetric(horizontal: 2.w, vertical: 10.h),
+        child: CachedNetworkImage(
+          imageUrl: ImgUrl.build(path),
+          width: 24.w,
+          height: 24.h,
+          fit: BoxFit.contain,
+          placeholder: (_, _) => Icon(
+            Icons.arrow_back_ios,
+            size: 18.w,
+            color: const Color(0xCC000000),
+          ),
+          errorWidget: (_, _, _) => Icon(
+            Icons.home_outlined,
+            size: 20.w,
+            color: const Color(0xCC000000),
+          ),
+        ),
+      ),
+    );
+  }
+
+  void _handleBack() {
+    if (context.canPop()) {
+      context.pop();
+    } else {
+      context.go('/');
+    }
+  }
+
+  // ===================== report-bac：头部 + 正确率/统计白卡 =====================
+
+  Widget _buildReportBac(bool pad) {
+    final status = _di('status');
+    return Container(
+      margin: EdgeInsets.fromLTRB(14.w, 30.h, 14.w, 0),
+      decoration: BoxDecoration(
+        gradient: const LinearGradient(
+          begin: Alignment.topCenter,
+          end: Alignment.bottomCenter,
+          colors: [Color(0xFFFAFEFF), Color(0xFFEDF7FF)],
+        ),
+        border: Border.all(color: Colors.white, width: 2),
+        borderRadius: BorderRadius.circular(20),
+      ),
+      child: Stack(
+        clipBehavior: Clip.none,
+        children: [
+          Column(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              // head
+              Padding(
+                padding: EdgeInsets.fromLTRB(
+                    pad ? 29.w : 16.w, 15.h, pad ? 29.w : 16.w, 0),
+                child: SizedBox(
+                  width: double.infinity,
+                  child: LayoutBuilder(
+                    builder: (_, constraints) => SizedBox(
+                      // .report-head view { width: 55% }
+                      width: constraints.maxWidth * 0.55,
+                      child: Column(
+                        crossAxisAlignment: CrossAxisAlignment.start,
+                        children: [
+                          if (status == 1)
+                            _buildHeadTips(
+                              icon:
+                                  '/StaticResource/2026-04-07/conquer-success-icon.png',
+                              text: '恭喜你，已攻克！',
+                              color: _primary,
+                            ),
+                          if (status == 2)
+                            _buildHeadTips(
+                              icon:
+                                  '/StaticResource/2026-04-07/conquer-fail-icon.png',
+                              text: '本次未攻克',
+                              color: _failText,
+                            ),
+                          Padding(
+                            padding: EdgeInsets.only(top: 7.5.h),
+                            child: Text(
+                              '${_data['name'] ?? ''}',
+                              maxLines: 2,
+                              overflow: TextOverflow.ellipsis,
+                              style: TextStyle(
+                                fontSize: 18.sp,
+                                fontWeight: FontWeight.w600,
+                                color: _title,
+                              ),
+                            ),
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                ),
+              ),
+              // report-main（margin-t-50）
+              Padding(
+                padding: EdgeInsets.only(top: 25.h),
+                child: _buildMainCard(),
+              ),
+            ],
+          ),
+          // 右上勋章 260rpx，top -100rpx
+          if (status == 1 || status == 2)
+            Positioned(
+              top: -50.h,
+              right: pad ? 20.w : 0,
+              child: CachedNetworkImage(
+                imageUrl: ImgUrl.build(
+                  status == 1
+                      ? '/StaticResource/2026-04-07/conquer-success.png'
+                      : '/StaticResource/2026-04-07/conquer-fail.png',
+                ),
+                width: 130.w,
+                height: 130.h,
+                fit: BoxFit.contain,
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildHeadTips({
+    required String icon,
+    required String text,
+    required Color color,
+  }) {
+    return Row(
+      children: [
+        CachedNetworkImage(
+          imageUrl: ImgUrl.build(icon),
+          width: 24.w,
+          height: 24.h,
+          fit: BoxFit.contain,
+        ),
+        SizedBox(width: 10.w),
+        Flexible(
+          child: Text(
+            text,
+            maxLines: 1,
+            overflow: TextOverflow.ellipsis,
+            style: TextStyle(fontSize: 14.sp, color: color),
+          ),
+        ),
+      ],
+    );
+  }
+
+  Widget _buildMainCard() {
+    return Container(
+      width: double.infinity,
+      padding: EdgeInsets.all(14.w),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(20),
+      ),
+      child: Column(
+        children: [
+          // 半圆环（padding-b-50）
+          Padding(
+            padding: EdgeInsets.only(bottom: 25.h),
+            child: SemicircleProgress(
+              percent: _accuracyRate,
+            ),
+          ),
+          _buildStatistics(),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildStatistics() {
+    return Container(
+      padding: EdgeInsets.symmetric(vertical: 16.h, horizontal: 20.w),
+      decoration: BoxDecoration(
+        color: const Color(0xFFFAFBFD),
+        border: Border.all(color: const Color(0xFFE3ECFF), width: 1.w),
+        borderRadius: BorderRadius.circular(10.r),
+      ),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: [
+          _statItem('${_di('totalQuestionCount')}', '总计', _title),
+          _statItem('${_di('correctQuestionCount')}', '答对', _success),
+          _statItem('${_di('incorrectQuestionCount')}', '答错', _error),
+          _statItem('${_di('unansweredQuestionCount')}', '未答', _title),
+          _statItem(formatDuration(_di('overcomeTimeSecond')), '用时', _title),
+        ],
+      ),
+    );
+  }
+
+  Widget _statItem(String num, String label, Color color) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        Padding(
+          padding: EdgeInsets.only(bottom: 4.h),
+          child: Text(
+            num,
+            style: TextStyle(
+              fontSize: 14.sp,
+              fontWeight: FontWeight.w600,
+              color: color,
+            ),
+          ),
+        ),
+        Text(
+          label,
+          style: TextStyle(fontSize: 12.sp, color: _subtitle),
+        ),
+      ],
+    );
+  }
+
+  // ===================== 答题卡卡 =====================
+
+  Widget _buildAnswerCard() {
+    return Container(
+      width: double.infinity,
+      margin: EdgeInsets.fromLTRB(14.w, 14.h, 14.w, 0),
+      padding: EdgeInsets.fromLTRB(14.w, 14.w, 14.w, 20.h),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.circular(10.r),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          _buildCardHead(),
+          for (var i = 0; i < _answerCard.length; i++)
+            _buildGroup(_answerCard[i], i),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildCardHead() {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.spaceBetween,
+      children: [
+        Row(
+          children: [
+            CachedNetworkImage(
+              imageUrl: ImgUrl.build(
+                '/StaticResource/2026-04-08/conquer-card-icon.png',
+              ),
+              width: 18.w,
+              height: 18.h,
+              fit: BoxFit.contain,
+            ),
+            SizedBox(width: 5.w),
+            Container(
+              width: 59.5.w,
+              height: 24.h,
+              alignment: Alignment.centerLeft,
+              decoration: BoxDecoration(
+                image: DecorationImage(
+                  image: CachedNetworkImageProvider(
+                    ImgUrl.build(
+                      '/StaticResource/2026-04-01/title-bacs.png',
+                    ),
+                  ),
+                  fit: BoxFit.fitWidth,
+                  alignment: Alignment.bottomCenter,
+                ),
+              ),
+              child: Text(
+                '答题卡',
+                style: TextStyle(
+                  fontSize: 16.sp,
+                  fontWeight: FontWeight.w600,
+                  color: _title,
+                ),
+              ),
+            ),
+          ],
+        ),
+        Row(
+          children: [
+            _legend(_success, '答对'),
+            _legend(_error, '答错'),
+            _legend(_unanswered, '未答'),
+          ],
+        ),
+      ],
+    );
+  }
+
+  Widget _legend(Color color, String label) {
+    return Padding(
+      padding: EdgeInsets.only(left: 10.w),
+      child: Row(
+        children: [
+          Container(
+            width: 6.w,
+            height: 6.w,
+            decoration: BoxDecoration(color: color, shape: BoxShape.circle),
+          ),
+          SizedBox(width: 5.w),
+          Text(
+            label,
+            style: TextStyle(fontSize: 12.sp, color: _subtitle),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildGroup(Map<String, dynamic> group, int index) {
+    final questions = (group['questions'] as List?) ?? const [];
+    return Padding(
+      padding: EdgeInsets.only(top: 20.h),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Padding(
+            padding: EdgeInsets.only(bottom: 12.h),
+            child: Text(
+              '${group['name'] ?? ''}',
+              style: TextStyle(fontSize: 12.sp, color: _subtitle),
+            ),
+          ),
+          Wrap(
+            spacing: 10.w,
+            runSpacing: 10.w,
+            children: [
+              for (final q in questions)
+                _buildQuestionItem(Map<String, dynamic>.from(q as Map)),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildQuestionItem(Map<String, dynamic> question) {
+    final status = question['status'];
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: () => _handleShowAnswerCard(question),
+      child: Container(
+        width: 44.w,
+        height: 36.h,
+        alignment: Alignment.center,
+        decoration: BoxDecoration(
+          color: _statusBg(status),
+          borderRadius: BorderRadius.circular(6.r),
+        ),
+        child: Text(
+          '${question['sort'] ?? ''}',
+          style: TextStyle(fontSize: 14.sp, color: _statusColor(status)),
+        ),
+      ),
+    );
+  }
+
+  // ===================== 底部固定按钮栏 =====================
+
+  Widget _buildFooter({required bool allCorrect}) {
+    return Positioned(
+      left: 0,
+      right: 0,
+      bottom: 0,
+      child: Container(
+        decoration: BoxDecoration(
+          color: Colors.white,
+          border: Border(
+            top: BorderSide(color: const Color(0xFFEEEEEE), width: 1.w),
+          ),
+        ),
+        padding: EdgeInsets.fromLTRB(
+          14.w,
+          12.h,
+          14.w,
+          12.h + MediaQuery.of(context).padding.bottom,
+        ),
+        child: Row(
+          children: [
+            if (_hasHandouts) ...[
+              _buildLectureEntry(),
+              SizedBox(width: 10.w),
+            ],
+            Expanded(
+              flex: allCorrect
+                  ? (_hasHandouts ? 80 : 100)
+                  : (_hasHandouts ? 40 : 48),
+              child: _footerButton(
+                text: '全部解析',
+                primary: false,
+                onTap: () => _handleShowAnswerCard(),
+              ),
+            ),
+            if (!allCorrect) ...[
+              SizedBox(width: 14.w),
+              Expanded(
+                flex: _hasHandouts ? 40 : 48,
+                child: _footerButton(
+                  text: '错题解析',
+                  primary: true,
+                  onTap: _handleWrongQuestionAnalysis,
+                ),
+              ),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+
+  Widget _buildLectureEntry() {
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: _getLectureNotes,
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          CachedNetworkImage(
+            imageUrl: ImgUrl.build('/StaticResource/2026-04-02/note.png'),
+            width: 24.w,
+            height: 24.h,
+            fit: BoxFit.contain,
+          ),
+          SizedBox(height: 5.h),
+          Text(
+            '查看讲义',
+            style: TextStyle(fontSize: 10.sp, color: _title),
+          ),
+        ],
+      ),
+    );
+  }
+
+  /// default-button4（白底蓝边）/ default-button1（蓝渐变 + 投影）
+  Widget _footerButton({
+    required String text,
+    required bool primary,
+    required VoidCallback onTap,
+  }) {
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: onTap,
+      child: Container(
+        height: 46.h,
+        alignment: Alignment.center,
+        decoration: BoxDecoration(
+          color: primary ? null : Colors.white,
+          gradient: primary
+              ? const LinearGradient(
+                  colors: [Color(0xFF3373FF), Color(0xFF3D7DF5)],
+                )
+              : null,
+          borderRadius: BorderRadius.circular(50.r),
+          border: primary
+              ? null
+              : Border.all(color: _primary, width: 1.w),
+          boxShadow: primary
+              ? const [
+                  BoxShadow(
+                    color: Color(0x4D3D7DF5),
+                    offset: Offset(0, 7.5),
+                    blurRadius: 15,
+                  ),
+                ]
+              : null,
+        ),
+        child: Text(
+          text,
+          style: TextStyle(
+            fontSize: 14.sp,
+            fontWeight: FontWeight.w400,
+            color: primary ? Colors.white : _primary,
+          ),
+        ),
+      ),
+    );
+  }
+}

lib/features/conquerPackage/report/widgets/conquer_poster_popup.dart

@@ -0,0 +1,665 @@
+import 'dart:ui' as ui show ImageByteFormat;
+
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/components/center_toast.dart';
+import 'package:new_learn/core/services/share_service.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+
+/// ============================================================
+/// 【ConquerPosterPopup】攻克结果海报弹窗
+/// 1:1 对标 Vue components/ConquerPosterPopup/ConquerPosterPopup.vue
+///
+/// - status == 1 成功海报，其余失败海报
+/// - 「分享海报」：RepaintBoundary 截图 → ShareService 系统分享
+/// - 「保存海报」：截图 → ShareService 存系统相册
+/// - 点遮罩/关闭按钮关闭
+/// ============================================================
+class ConquerPosterPopup extends StatefulWidget {
+  const ConquerPosterPopup({
+    super.key,
+    required this.show,
+    required this.status,
+    required this.name,
+    required this.accuracyRate,
+    required this.overcomeTimeSecond,
+    required this.userName,
+    required this.userAvatar,
+    required this.onClose,
+  });
+
+  final bool show;
+
+  /// 1=已攻克 其它=未攻克
+  final int status;
+  final String name;
+  final num accuracyRate;
+  final int overcomeTimeSecond;
+  final String userName;
+  final String userAvatar;
+  final VoidCallback onClose;
+
+  @override
+  State<ConquerPosterPopup> createState() => _ConquerPosterPopupState();
+}
+
+class _ConquerPosterPopupState extends State<ConquerPosterPopup> {
+  // 主题色（对标 themes/default.json：tColor('primary') = #3D7DF5）
+  static const Color _primary = Color(0xFF3D7DF5);
+  static const Color _title = Color(0xFF1D2B47);
+  static const Color _subtitle = Color(0xFF687FAD);
+  static const Color _userName = Color(0xFF495A7A);
+  static const Color _shareText = Color(0xFF6195F6);
+  static const Color _cardBorder = Color(0xFFE3ECFF);
+
+  final GlobalKey _boundaryKey = GlobalKey();
+  bool _busy = false;
+
+  int get _timeMin => widget.overcomeTimeSecond ~/ 60;
+  int get _timeSec => widget.overcomeTimeSecond % 60;
+  bool get _isSuccess => widget.status == 1;
+
+  /// 整数不显示小数尾零（对标 JS 模板插值：45.0 → 45）
+  String _formatNum(num v) => v % 1 == 0 ? '${v.toInt()}' : '$v';
+
+  @override
+  Widget build(BuildContext context) {
+    if (!widget.show) return const SizedBox.shrink();
+
+    return Positioned.fill(
+      child: Stack(
+        children: [
+          // 半透明遮罩（uview up-popup 默认 0.5 黑），点击关闭
+          Positioned.fill(
+            child: GestureDetector(
+              behavior: HitTestBehavior.opaque,
+              onTap: widget.onClose,
+              child: const ColoredBox(color: Color(0x80000000)),
+            ),
+          ),
+          // 弹窗主体（内容上下居中；屏幕过矮时可滚动）
+          Positioned.fill(
+            child: SafeArea(
+              child: LayoutBuilder(
+                builder: (context, constraints) {
+                  return SingleChildScrollView(
+                    child: ConstrainedBox(
+                      constraints: BoxConstraints(
+                        minHeight: constraints.maxHeight,
+                      ),
+                      child: IntrinsicHeight(
+                        child: Center(
+                          child: SizedBox(
+                            width: 320.w,
+                            child: Column(
+                            mainAxisAlignment: MainAxisAlignment.center,
+                            children: [
+                              SizedBox(height: 20.h),
+                              // 右上角关闭按钮
+                              Align(
+                                alignment: Alignment.centerRight,
+                                child: GestureDetector(
+                                  behavior: HitTestBehavior.opaque,
+                                  onTap: widget.onClose,
+                                  child: CachedNetworkImage(
+                                    imageUrl: ImgUrl.build(
+                                      '/StaticResource/2026-04-24/topRight-close.png',
+                                    ),
+                                    width: 32.w,
+                                    height: 32.h,
+                                    fit: BoxFit.contain,
+                                    errorWidget: (_, _, _) => SizedBox(
+                                      width: 32.w,
+                                      height: 32.h,
+                                      child: const Icon(Icons.close,
+                                          color: Colors.white, size: 28),
+                                    ),
+                                  ),
+                                ),
+                              ),
+                              SizedBox(height: 16.h),
+                              _buildPoster(),
+                              SizedBox(height: 30.h),
+                              _buildActionButtons(),
+                              SizedBox(height: 20.h),
+                            ],
+                          ),
+                          ),
+                        ),
+                      ),
+                    ),
+                  );
+                },
+              ),
+            ),
+          ),
+          // 生成中遮罩
+          if (_busy)
+            const Positioned.fill(
+              child: ColoredBox(
+                color: Color(0x66000000),
+                child: Center(
+                  child: Card(
+                    color: Color(0xCC000000),
+                    child: Padding(
+                      padding: EdgeInsets.all(20),
+                      child: Column(
+                        mainAxisSize: MainAxisSize.min,
+                        children: [
+                          CircularProgressIndicator(
+                            strokeWidth: 3,
+                            color: Colors.white,
+                          ),
+                        ],
+                      ),
+                    ),
+                  ),
+                ),
+              ),
+            ),
+        ],
+      ),
+    );
+  }
+
+  // ===================== 海报主容器（截图区域） =====================
+
+  Widget _buildPoster() {
+    return RepaintBoundary(
+      key: _boundaryKey,
+      child: Container(
+        width: 320.w,
+        padding: EdgeInsets.all(10.w),
+        decoration: BoxDecoration(
+          borderRadius: BorderRadius.circular(20.r),
+          image: DecorationImage(
+            image: CachedNetworkImageProvider(
+              ImgUrl.build(
+                '/StaticResource/2026-04-24/wholeBlueBg-bg.png',
+              ),
+            ),
+            fit: BoxFit.fill,
+          ),
+        ),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            // 背景装饰星星
+            Stack(
+              clipBehavior: Clip.none,
+              children: [
+                Positioned(
+                  top: 19.h,
+                  right: 10.w,
+                  child: CachedNetworkImage(
+                    imageUrl: ImgUrl.build(
+                      '/StaticResource/2026-04-24/white-star-bg.png',
+                    ),
+                    width: 159.w,
+                    fit: BoxFit.fitWidth,
+                  ),
+                ),
+                Positioned(
+                  top: 135.h,
+                  right: 165.w,
+                  child: CachedNetworkImage(
+                    imageUrl: ImgUrl.build(
+                      '/StaticResource/2026-04-24/black-star-icon.png',
+                    ),
+                    width: 16.w,
+                    fit: BoxFit.fitWidth,
+                  ),
+                ),
+                Column(
+                  mainAxisSize: MainAxisSize.min,
+                  crossAxisAlignment: CrossAxisAlignment.start,
+                  children: [
+                    // 左上角 Logo
+                    Padding(
+                      padding: EdgeInsets.only(
+                          left: 8.w, top: 15.h, bottom: 15.h),
+                      child: CachedNetworkImage(
+                        imageUrl: ImgUrl.build(
+                          '/StaticResource/2026-04-24/topLeft-logo.png',
+                        ),
+                        width: 70.w,
+                        height: 17.h,
+                        fit: BoxFit.contain,
+                      ),
+                    ),
+                    _buildInnerCard(),
+                  ],
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// 内部卡片：上半渐变（用户+吉祥物）+ 下半白色（知识点+统计）
+  Widget _buildInnerCard() {
+    return Container(
+      width: 300.w,
+      decoration: BoxDecoration(
+        gradient: const LinearGradient(
+          begin: Alignment.topCenter,
+          end: Alignment.bottomCenter,
+          colors: [Color(0xFFE0F6FF), Color(0xFFD6EAFF)],
+        ),
+        borderRadius: BorderRadius.only(
+          topLeft: Radius.circular(12.r),
+          topRight: Radius.circular(60.r),
+          bottomLeft: Radius.circular(12.r),
+          bottomRight: Radius.circular(12.r),
+        ),
+        border: Border.all(color: Colors.white, width: 1.w),
+      ),
+      child: Stack(
+        children: [
+          // 125.81deg 白色高光渐变（对标 CSS 第一层 background）
+          Positioned.fill(
+            child: IgnorePointer(
+              child: DecoratedBox(
+                decoration: BoxDecoration(
+                  borderRadius: BorderRadius.only(
+                    topLeft: Radius.circular(12.r),
+                    topRight: Radius.circular(60.r),
+                    bottomLeft: Radius.circular(12.r),
+                    bottomRight: Radius.circular(12.r),
+                  ),
+                  gradient: const LinearGradient(
+                    begin: Alignment(0.54, -0.84),
+                    end: Alignment(-0.54, 0.84),
+                    colors: [
+                      Color(0xCCFFFFFF),
+                      Color(0x00FFFFFF),
+                    ],
+                  ),
+                ),
+              ),
+            ),
+          ),
+          Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              _buildCardTop(),
+              _buildCardBottom(),
+            ],
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildCardTop() {
+    return Container(
+      height: 150.h, // min-height 300rpx
+      padding: EdgeInsets.fromLTRB(20.w, 20.h, 20.w, 0),
+      child: Stack(
+        clipBehavior: Clip.none,
+        children: [
+          // 用户信息行
+          Row(
+            children: [
+              Container(
+                width: 28.w,
+                height: 28.w,
+                decoration: BoxDecoration(
+                  shape: BoxShape.circle,
+                  border: Border.all(color: Colors.white, width: 2.w),
+                ),
+                child: ClipOval(
+                  child: CachedNetworkImage(
+                    imageUrl: widget.userAvatar,
+                    fit: BoxFit.cover,
+                    placeholder: (_, _) => _defaultAvatar(),
+                    errorWidget: (_, _, _) => _defaultAvatar(),
+                  ),
+                ),
+              ),
+              SizedBox(width: 8.w),
+              Flexible(
+                child: Text(
+                  widget.userName.isNotEmpty ? widget.userName : '我',
+                  maxLines: 1,
+                  overflow: TextOverflow.ellipsis,
+                  style: TextStyle(
+                    fontSize: 15.sp,
+                    fontWeight: FontWeight.w500,
+                    color: _userName,
+                  ),
+                ),
+              ),
+            ],
+          ),
+          // 状态区：发光 + 文案 + 吉祥物
+          Positioned(
+            top: 15.h,
+            left: 0,
+            right: 0,
+            bottom: 0,
+            child: Stack(
+              clipBehavior: Clip.none,
+              children: [
+                Positioned(
+                  left: 53.w,
+                  top: 81.h,
+                  child: CachedNetworkImage(
+                    imageUrl: ImgUrl.build(
+                      _isSuccess
+                          ? '/StaticResource/2026-04-24/conquerSuccessTextBlow-icon.png'
+                          : '/StaticResource/2026-04-24/conquerFailTextBlow-icon.png',
+                    ),
+                    width: 69.w,
+                    fit: BoxFit.fitWidth,
+                  ),
+                ),
+                Positioned(
+                  left: 0,
+                  top: 24.h,
+                  child: CachedNetworkImage(
+                    imageUrl: ImgUrl.build(
+                      _isSuccess
+                          ? '/StaticResource/2026-04-24/conquerSuccessText.png'
+                          : '/StaticResource/2026-04-24/conquerFailText.png',
+                    ),
+                    width: 108.w,
+                    fit: BoxFit.fitWidth,
+                  ),
+                ),
+                Positioned(
+                  right: -5.w,
+                  bottom: 15.h,
+                  child: CachedNetworkImage(
+                    imageUrl: ImgUrl.build(
+                      _isSuccess
+                          ? '/StaticResource/2026-04-24/conquerSuccess-image.png'
+                          : '/StaticResource/2026-04-24/conquerFail-image.png',
+                    ),
+                    width: 131.w,
+                    fit: BoxFit.fitWidth,
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildCardBottom() {
+    return Container(
+      width: double.infinity,
+      padding: EdgeInsets.fromLTRB(20.w, 20.h, 20.w, 14.h),
+      decoration: BoxDecoration(
+        color: Colors.white,
+        borderRadius: BorderRadius.only(
+          bottomLeft: Radius.circular(12.r),
+          bottomRight: Radius.circular(12.r),
+        ),
+      ),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text(
+            '本次攻克知识点',
+            style: TextStyle(fontSize: 12.sp, color: _primary),
+          ),
+          SizedBox(height: 10.h),
+          Text(
+            widget.name,
+            maxLines: 3,
+            overflow: TextOverflow.ellipsis,
+            style: TextStyle(
+              fontSize: 20.sp,
+              fontWeight: FontWeight.w500,
+              color: _title,
+              height: 1.25,
+            ),
+          ),
+          SizedBox(height: 20.h),
+          _buildStatsBox(),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildStatsBox() {
+    return Container(
+      height: 92.h,
+      padding: EdgeInsets.only(top: 16.h, bottom: 8.h),
+      decoration: BoxDecoration(
+        color: const Color(0xFFFAFBFD),
+        borderRadius: BorderRadius.circular(8.r),
+        border: Border.all(color: _cardBorder, width: 0.5.w),
+      ),
+      child: Row(
+        children: [
+          Expanded(child: _buildStatAccuracy()),
+          Expanded(child: _buildStatTime()),
+        ],
+      ),
+    );
+  }
+
+  Widget _buildStatAccuracy() {
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.spaceBetween,
+      children: [
+        Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          crossAxisAlignment: CrossAxisAlignment.end,
+          children: [
+            Text(
+              _formatNum(widget.accuracyRate),
+              style: TextStyle(
+                fontSize: 28.sp,
+                color: _primary,
+                height: 1.0,
+              ),
+            ),
+            SizedBox(width: 5.w),
+            Padding(
+              padding: EdgeInsets.only(bottom: 3.h),
+              child: Text('%',
+                  style: TextStyle(fontSize: 14.sp, color: _primary)),
+            ),
+          ],
+        ),
+        Text('正确率', style: TextStyle(fontSize: 12.sp, color: _subtitle)),
+      ],
+    );
+  }
+
+  Widget _buildStatTime() {
+    return Column(
+      mainAxisAlignment: MainAxisAlignment.spaceBetween,
+      children: [
+        Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          crossAxisAlignment: CrossAxisAlignment.end,
+          children: [
+            if (_timeMin > 0) ...[
+              Text('$_timeMin',
+                  style: TextStyle(fontSize: 28.sp, color: _primary, height: 1)),
+              SizedBox(width: 2.w),
+              Padding(
+                padding: EdgeInsets.only(bottom: 3.h),
+                child: Text('分',
+                    style: TextStyle(fontSize: 14.sp, color: _primary)),
+              ),
+              SizedBox(width: 5.w),
+            ],
+            Text('$_timeSec',
+                style: TextStyle(fontSize: 28.sp, color: _primary, height: 1)),
+            SizedBox(width: 2.w),
+            Padding(
+              padding: EdgeInsets.only(bottom: 3.h),
+              child: Text('秒',
+                  style: TextStyle(fontSize: 14.sp, color: _primary)),
+            ),
+          ],
+        ),
+        Text('用时', style: TextStyle(fontSize: 12.sp, color: _subtitle)),
+      ],
+    );
+  }
+
+  // ===================== 底部按钮 =====================
+
+  Widget _buildActionButtons() {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.center,
+      children: [
+        _buildButton(
+          text: '分享海报',
+          width: 115.w,
+          textColor: _shareText,
+          decoration: BoxDecoration(
+            color: Colors.white,
+            borderRadius: BorderRadius.circular(50.r),
+            border: Border.all(color: const Color(0x6683CBFB), width: 1.w),
+            boxShadow: const [
+              BoxShadow(
+                color: Color(0x143D7DF5),
+                offset: Offset(0, 7.5),
+                blurRadius: 5.6,
+              ),
+            ],
+          ),
+          onTap: _handleShare,
+        ),
+        SizedBox(width: 30.w),
+        _buildButton(
+          text: '保存海报',
+          width: 115.w,
+          textColor: Colors.white,
+          decoration: BoxDecoration(
+            gradient: const LinearGradient(
+              begin: Alignment.topCenter,
+              end: Alignment.bottomCenter,
+              stops: [0.0, 0.6422, 1.0],
+              colors: [Color(0xFF8AD1FD), Color(0xFF3C84FF), Color(0xFF3D7DF5)],
+            ),
+            borderRadius: BorderRadius.circular(50.r),
+            boxShadow: const [
+              BoxShadow(
+                color: Color(0x143D7DF5),
+                offset: Offset(0, 7.5),
+                blurRadius: 5.6,
+              ),
+            ],
+          ),
+          onTap: _handleSave,
+        ),
+      ],
+    );
+  }
+
+  Widget _buildButton({
+    required String text,
+    required double width,
+    required Color textColor,
+    required Decoration decoration,
+    required VoidCallback onTap,
+  }) {
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: onTap,
+      child: Container(
+        width: width,
+        height: 49.h,
+        alignment: Alignment.center,
+        decoration: decoration,
+        child: Text(
+          text,
+          style: TextStyle(
+            fontSize: 17.sp,
+            fontWeight: FontWeight.w500,
+            color: textColor,
+          ),
+        ),
+      ),
+    );
+  }
+
+  Widget _defaultAvatar() {
+    return CachedNetworkImage(
+      imageUrl: ImgUrl.build('/StaticResource/2026-04-03/fake-avatar.png'),
+      fit: BoxFit.cover,
+    );
+  }
+
+  // ===================== 截图 / 分享 / 保存 =====================
+
+  Future<dynamic> _capturePoster() async {
+    final boundary = _boundaryKey.currentContext?.findRenderObject()
+        as RenderRepaintBoundary?;
+    if (boundary == null) return null;
+    final image = await boundary.toImage(pixelRatio: 3);
+    final byteData =
+        await image.toByteData(format: ui.ImageByteFormat.png);
+    return byteData?.buffer.asUint8List();
+  }
+
+  Future<void> _handleShare() async {
+    if (_busy) return;
+    setState(() => _busy = true);
+    try {
+      final bytes = await _capturePoster();
+      if (bytes == null) {
+        _toast('生成海报失败');
+        return;
+      }
+      final result = await ShareService.instance.shareImageBytes(
+        bytes: bytes,
+        fileName: 'conquer_poster.png',
+      );
+      if (result.status.name == 'unavailable') {
+        _toast('当前版本暂不支持分享');
+      }
+    } catch (e) {
+      _toast('生成海报失败');
+    } finally {
+      if (mounted) setState(() => _busy = false);
+    }
+  }
+
+  Future<void> _handleSave() async {
+    if (_busy) return;
+    setState(() => _busy = true);
+    try {
+      final bytes = await _capturePoster();
+      if (bytes == null) {
+        _toast('生成海报失败');
+        return;
+      }
+      final ok = await ShareService.saveToGalleryFromBytes(
+        bytes: bytes,
+        fileName:
+            'conquer_poster_${DateTime.now().millisecondsSinceEpoch}.png',
+      );
+      if (ok) {
+        // 先弹 toast（挂在根 Overlay），再关闭海报弹框
+        _toast('保存成功');
+        widget.onClose();
+      } else {
+        _toast('保存失败');
+      }
+    } catch (e) {
+      _toast('保存失败');
+    } finally {
+      if (mounted) setState(() => _busy = false);
+    }
+  }
+
+  void _toast(String text) {
+    if (!mounted) return;
+    CenterToast.show(context, text);
+  }
+}

lib/features/conquerPackage/report/widgets/guide_modal.dart

@@ -0,0 +1,168 @@
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:new_learn/core/api/auth/api.dart';
+import 'package:new_learn/core/providers/user_provider.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/widgets/exercise_styles.dart';
+
+/// ============================================================
+/// 【GuideModal】攻克报告后功能引导遮罩
+/// 1:1 对标 Vue components/GuideModal/GuideModal.vue
+///
+/// 行为：点击任意位置 → ChangeShowGuide → 刷新用户信息 → 关闭
+/// ============================================================
+class GuideModal extends ConsumerStatefulWidget {
+  const GuideModal({
+    super.key,
+    required this.show,
+    required this.onClose,
+  });
+
+  final bool show;
+  final VoidCallback onClose;
+
+  @override
+  ConsumerState<GuideModal> createState() => _GuideModalState();
+}
+
+class _GuideModalState extends ConsumerState<GuideModal> {
+  bool _closing = false;
+
+  Future<void> _handleClose() async {
+    if (_closing) return;
+    _closing = true;
+    try {
+      await UserApi.changeShowGuide();
+      // 强制刷新全局用户信息（失败也不阻塞关闭，refresh 内部已兜底）
+      await ref.read(currentUserProvider.notifier).refresh();
+    } catch (_) {
+      // 对标 Vue：接口失败仅打印，不影响关闭
+    } finally {
+      widget.onClose();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (!widget.show) return const SizedBox.shrink();
+
+    final pad = isPadDevice(context);
+    final buttonWidth = pad ? 255.w : 165.w;
+
+    return Positioned.fill(
+      child: GestureDetector(
+        behavior: HitTestBehavior.opaque,
+        onTap: _handleClose,
+        child: Stack(
+          children: [
+            const Positioned.fill(
+              child: ColoredBox(color: Color(0x8C000000)), // rgba(0,0,0,.55)
+            ),
+            // 「点击任意位置退出」居中白字
+            Positioned.fill(
+              child: Center(
+                child: Text(
+                  '点击任意位置退出',
+                  style: TextStyle(
+                    color: Colors.white,
+                    fontSize: 16.sp,
+                    fontWeight: FontWeight.w400,
+                    height: 1.375,
+                  ),
+                ),
+              ),
+            ),
+            // 引导图 bottom 292rpx
+            Positioned(
+              left: 0,
+              right: 0,
+              bottom: 146.h,
+              height: 139.h,
+              child: CachedNetworkImage(
+                imageUrl: ImgUrl.build(
+                  '/StaticResource/2026-06-09/guide_pg1781012082368.png',
+                ),
+                fit: BoxFit.contain,
+              ),
+            ),
+            // 箭头 bottom 206rpx / left 180rpx
+            Positioned(
+              left: 90.w,
+              bottom: 103.h,
+              width: 12.w,
+              height: 50.h,
+              child: CachedNetworkImage(
+                imageUrl: ImgUrl.build(
+                  '/StaticResource/2026-06-09/guide_arrow1781012131243.png',
+                ),
+                fit: BoxFit.contain,
+              ),
+            ),
+            // 假按钮组 bottom 80rpx
+            Positioned(
+              left: 0,
+              right: 0,
+              bottom: 40.h,
+              child: Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                crossAxisAlignment: CrossAxisAlignment.center,
+                children: [
+                  Container(
+                    width: buttonWidth,
+                    height: 49.h,
+                    margin: EdgeInsets.only(right: 17.w),
+                    alignment: Alignment.center,
+                    decoration: BoxDecoration(
+                      color: Colors.white,
+                      borderRadius: BorderRadius.circular(50.r),
+                      border: Border.all(
+                        color: const Color(0xFF66A6FF),
+                        width: 1.w,
+                      ),
+                    ),
+                    child: Text(
+                      '全部解析',
+                      style: TextStyle(
+                        fontSize: 16.sp,
+                        fontWeight: FontWeight.w500,
+                        color: const Color(0xFF66A6FF),
+                      ),
+                    ),
+                  ),
+                  Container(
+                    width: buttonWidth,
+                    height: 49.h,
+                    alignment: Alignment.center,
+                    decoration: BoxDecoration(
+                      gradient: const LinearGradient(
+                        colors: [Color(0xFF3373FF), Color(0xFF3D7DF5)],
+                      ),
+                      borderRadius: BorderRadius.circular(50.r),
+                      boxShadow: const [
+                        BoxShadow(
+                          color: Color(0x4D3D7DF5),
+                          offset: Offset(0, 7.5),
+                          blurRadius: 15,
+                        ),
+                      ],
+                    ),
+                    child: Text(
+                      '错题解析',
+                      style: TextStyle(
+                        fontSize: 16.sp,
+                        fontWeight: FontWeight.w500,
+                        color: Colors.white,
+                      ),
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/features/conquerPackage/report/widgets/semicircle_progress.dart

@@ -0,0 +1,166 @@
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+
+/// ============================================================
+/// 【SemicircleProgress】半圆正确率进度环
+/// 1:1 对标 Vue components/lProgressCircle/lProgressCircle.vue
+/// （report.vue 用法：width 308rpx / height 168rpx / strokeWidth 14 /
+///   bgColor #D8DFEB / progressColor #1578FF，上半圆从左到右）
+///
+/// 尺寸说明（Vue canvas 逻辑像素 → Flutter dp）：
+///   308rpx = 154.w，168rpx = 84.h，描边 14px = 7.w，
+///   paddingTop 默认 8px = 4.h；
+///   radius = min(宽/2 - 描边, 高 - 描边 - paddingTop)
+/// ============================================================
+class SemicircleProgress extends StatelessWidget {
+  const SemicircleProgress({
+    super.key,
+    required this.percent,
+    this.width = 154,
+    this.height = 84,
+    this.strokeWidth = 10,
+    this.paddingTop = 4,
+    this.trackColor = const Color(0xFFD8DFEB),
+    this.progressColor = const Color(0xFF1578FF),
+  });
+
+  /// 0 ~ 100
+  final num percent;
+  final double width;
+  final double height;
+  final double strokeWidth;
+  final double paddingTop;
+  final Color trackColor;
+  final Color progressColor;
+
+  @override
+  Widget build(BuildContext context) {
+    final w = width.w;
+    final h = height.h;
+    final sw = strokeWidth.w;
+
+    return SizedBox(
+      width: w,
+      height: h,
+      child: CustomPaint(
+        size: Size(w, h),
+        painter: _SemicirclePainter(
+          percent: percent.toDouble().clamp(0, 100),
+          strokeWidth: sw,
+          paddingTop: paddingTop.h,
+          trackColor: trackColor,
+          progressColor: progressColor,
+        ),
+        // 对标 Vue slot：progress-content top 43rpx，居中展示数值
+        child: Padding(
+          padding: EdgeInsets.only(top: 31.5.h),
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              // 大数字 + %（font-50 粗体标题色 + font-24 副色 %，底 10rpx）
+              Padding(
+                padding: EdgeInsets.only(bottom: 5.h),
+                child: RichText(
+                  text: TextSpan(
+                    children: [
+                      TextSpan(
+                        text: '${percent % 1 == 0 ? percent.toInt() : percent}',
+                        style: TextStyle(
+                          fontSize: 25.sp,
+                          fontWeight: FontWeight.w600,
+                          color: const Color(0xFF1D2B47),
+                        ),
+                      ),
+                      TextSpan(
+                        text: '%',
+                        style: TextStyle(
+                          fontSize: 12.sp,
+                          color: const Color(0xFF495A7A),
+                        ),
+                      ),
+                    ],
+                  ),
+                ),
+              ),
+              Text(
+                '本次正确率',
+                style: TextStyle(
+                  fontSize: 12.sp,
+                  color: const Color(0xFF687FAD),
+                ),
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class _SemicirclePainter extends CustomPainter {
+  const _SemicirclePainter({
+    required this.percent,
+    required this.strokeWidth,
+    required this.paddingTop,
+    required this.trackColor,
+    required this.progressColor,
+  });
+
+  final double percent;
+  final double strokeWidth;
+  final double paddingTop;
+  final Color trackColor;
+  final Color progressColor;
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    final halfStroke = strokeWidth / 2;
+    final maxRadiusByWidth = size.width / 2 - strokeWidth;
+    final maxRadiusByHeight = size.height - strokeWidth - paddingTop;
+    final radius = math.max(0.0, math.min(maxRadiusByWidth, maxRadiusByHeight));
+    final centerX = size.width / 2;
+    final centerY = size.height - halfStroke;
+
+    final trackPaint = Paint()
+      ..style = PaintingStyle.stroke
+      ..strokeWidth = strokeWidth
+      ..strokeCap = StrokeCap.round
+      ..color = trackColor;
+
+    // 背景半圆环：π（左）→ 0（右）
+    canvas.drawArc(
+      Rect.fromCircle(center: Offset(centerX, centerY), radius: radius),
+      math.pi,
+      math.pi,
+      false,
+      trackPaint,
+    );
+
+    // 进度弧
+    if (percent > 0) {
+      final progressPaint = Paint()
+        ..style = PaintingStyle.stroke
+        ..strokeWidth = strokeWidth
+        ..strokeCap = StrokeCap.round
+        ..color = progressColor;
+      final sweep = math.pi * (percent / 100);
+      canvas.drawArc(
+        Rect.fromCircle(center: Offset(centerX, centerY), radius: radius),
+        math.pi,
+        sweep,
+        false,
+        progressPaint,
+      );
+    }
+  }
+
+  @override
+  bool shouldRepaint(covariant _SemicirclePainter oldDelegate) {
+    return oldDelegate.percent != percent ||
+        oldDelegate.strokeWidth != strokeWidth ||
+        oldDelegate.trackColor != trackColor ||
+        oldDelegate.progressColor != progressColor;
+  }
+}

lib/features/conquerPackage/transitionPage/transition_page.dart

@@ -0,0 +1,747 @@
+import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_screenutil/flutter_screenutil.dart';
+import 'package:go_router/go_router.dart';
+import 'package:new_learn/core/api/conquerPackage/beforeDuringClass/api.dart';
+import 'package:new_learn/core/api/conquerPackage/beforeDuringClass/model.dart';
+import 'package:new_learn/core/utils/img_url.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/widgets/exercise_styles.dart';
+
+/// ============================================================
+/// 【TransitionPage】课前/课中/课后 过渡页面
+/// 对标 Vue pages/conquerPackage/transitionPage/transitionPage.vue
+///
+/// 一、三种状态：
+///   status = 1 → 课前讲义（带滑动蒙层引导）
+///   status = 2 → 课中视频
+///   status = 3 → 课后练习（含提示卡片 + 攻克标准）
+///
+/// 二、路由参数（通过 extra 传入）：
+///   - courseId  课程 id
+///   - packId    攻克包 id
+///   - recordId  学习记录 id
+///   - status    状态：1课前 / 2课中 / 3课后
+///
+/// 三、尺寸换算（本工程统一）：
+///   Vue 的 N rpx → Flutter 的 (N/2).w/.h/.sp/.r
+///
+/// 四、跳转：
+///   status 1/2 → 跳 beforeDuringClass 页
+///   status 3   → 跳 classExercises 页
+/// ============================================================
+
+/// 过渡页状态
+enum TransitionStatus {
+  beforeClass(1), // 课前讲义
+  duringClass(2), // 课中视频
+  afterClass(3); // 课后练习
+
+  final int value;
+  const TransitionStatus(this.value);
+
+  factory TransitionStatus.fromInt(dynamic v) {
+    final n = int.tryParse(v?.toString() ?? '') ?? 1;
+    return TransitionStatus.values.firstWhere(
+      (e) => e.value == n,
+      orElse: () => TransitionStatus.beforeClass,
+    );
+  }
+}
+
+class TransitionPage extends StatefulWidget {
+  const TransitionPage({super.key, this.extra});
+
+  final Map<String, dynamic>? extra;
+
+  @override
+  State<TransitionPage> createState() => _TransitionPageState();
+}
+
+class _TransitionPageState extends State<TransitionPage> {
+  // ========== 颜色常量（对标 Vue common.scss / pages.json） ==========
+  // pages.json globalStyle.backgroundColor
+  static const Color _bgColor = Color(0xFFF8F8F8);
+  // color-Subtitle（主标题 / 提示文案均用此色）
+  static const Color _textColor = Color(0xFF495A7A);
+  // color-default $default-color
+  static const Color _primary = Color(0xFF3D7DF5);
+  // $default-color-strong（渐变起点）
+  static const Color _primaryStrong = Color(0xFF3373FF);
+  static const Color _labelBg = Color(0xFFE3ECFF);
+  static const Color _cardBg = Color(0xFFF2F7FF);
+
+  // ========== 路由参数 ==========
+  late String _courseId;
+  late String _packId;
+  late String _recordId;
+  late TransitionStatus _status;
+
+  // ========== 数据 ==========
+  OvercomeRecordInfo _overcomeInfo = const OvercomeRecordInfo();
+  bool _loading = true;
+  bool _showMask = true; // 课前蒙层是否显示
+
+  @override
+  void initState() {
+    super.initState();
+    _parseExtra();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      _loadData();
+    });
+  }
+
+  // ===================== 初始化 =====================
+
+  void _parseExtra() {
+    final extra = widget.extra ?? const <String, dynamic>{};
+    _courseId = (extra['courseId']?.toString()) ?? '';
+    _packId = (extra['packId']?.toString()) ?? '';
+    _recordId = (extra['recordId']?.toString()) ?? '';
+    _status = TransitionStatus.fromInt(extra['status']);
+  }
+
+  Future<void> _loadData() async {
+    setState(() => _loading = true);
+    try {
+      if (_recordId.isEmpty) {
+        throw Exception('recordId 无效');
+      }
+      final info = await BeforeDuringClassApi.instance.getRecord(_recordId);
+      if (!mounted) return;
+      setState(() => _overcomeInfo = info);
+    } catch (e) {
+      debugPrint('[TransitionPage] 加载失败: $e');
+      // 失败时回退到攻克列表页
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          SnackBar(
+            content: Text('获取攻克信息失败：${e.toString()}'),
+            behavior: SnackBarBehavior.floating,
+          ),
+        );
+        context.go('/conquerPackage/captureList', extra: _courseId);
+      }
+    } finally {
+      if (mounted) setState(() => _loading = false);
+    }
+  }
+
+  // ===================== 点击开始学习 =====================
+
+  void _startLearning() {
+    if (_status == TransitionStatus.beforeClass ||
+        _status == TransitionStatus.duringClass) {
+      context.push(
+        '/conquerPackage/beforeDuringClass',
+        extra: {
+          'status': '${_status.value}',
+          'courseId': _courseId,
+          'packId': _packId,
+          'recordId': _recordId,
+        },
+      );
+    } else if (_status == TransitionStatus.afterClass) {
+      if (_overcomeInfo.hasQuestion) {
+        // 对标 Vue：课后练习跳 classExercises（仅 courseId/packId/recordId）
+        context.push(
+          '/conquerPackage/classExercises',
+          extra: {
+            'courseId': _courseId,
+            'packId': _packId,
+            'recordId': _recordId,
+          },
+        );
+      }
+    }
+  }
+
+  // ===================== Build =====================
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      backgroundColor: _bgColor,
+      body: Stack(
+        children: [
+          SafeArea(
+            child: Column(
+              children: [
+                _buildNavBar(),
+                Expanded(
+                  child: _loading
+                      ? const Center(child: CircularProgressIndicator())
+                      : _buildBody(),
+                ),
+              ],
+            ),
+          ),
+          // 课前/课中：开始学习按钮 fixed 底部 92rpx
+          if (!_loading &&
+              (_status == TransitionStatus.beforeClass ||
+                  _status == TransitionStatus.duringClass))
+            Positioned(
+              left: 0,
+              right: 0,
+              bottom: 0,
+              child: SafeArea(
+                top: false,
+                child: Padding(
+                  padding: EdgeInsets.fromLTRB(14.w, 0, 14.w, 46.h),
+                  child: SizedBox(
+                    height: 46.h,
+                    child: _buildPrimaryButton('开始学习', _startLearning),
+                  ),
+                ),
+              ),
+            ),
+          // 课前引导蒙层
+          if (_status == TransitionStatus.beforeClass && _showMask)
+            _SlideMask(
+              visible: _showMask,
+              onClose: () => setState(() => _showMask = false),
+            ),
+        ],
+      ),
+    );
+  }
+
+  // ===================== NavBar（对标 NavBar.vue：透明底 + return.png） =====================
+
+  Widget _buildNavBar() {
+    return SizedBox(
+      height: 44.h,
+      child: Row(
+        crossAxisAlignment: CrossAxisAlignment.center,
+        children: [
+          // side padding-left 24rpx + back padding-left 4rpx = 28rpx
+          SizedBox(width: 14.w),
+          GestureDetector(
+            behavior: HitTestBehavior.opaque,
+            onTap: () => Navigator.of(context).maybePop(),
+            child: Padding(
+              padding: EdgeInsets.symmetric(vertical: 10.h),
+              child: CachedNetworkImage(
+                imageUrl: ImgUrl.build(
+                  '/StaticResource/2026-04-01/return.png',
+                ),
+                width: 24.w,
+                height: 24.h,
+                placeholder: (_, __) => Icon(
+                  Icons.arrow_back_ios,
+                  size: 18.w,
+                  color: const Color(0xCC000000),
+                ),
+                errorWidget: (_, __, ___) => Icon(
+                  Icons.arrow_back_ios,
+                  size: 18.w,
+                  color: const Color(0xCC000000),
+                ),
+              ),
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+
+  // ===================== Body =====================
+
+  Widget _buildBody() {
+    switch (_status) {
+      case TransitionStatus.beforeClass:
+        return _buildBeforeClass();
+      case TransitionStatus.duringClass:
+        return _buildDuringClass();
+      case TransitionStatus.afterClass:
+        return _buildAfterClass();
+    }
+  }
+
+  // ---------- 课前讲义 ----------
+
+  Widget _buildBeforeClass() {
+    return SingleChildScrollView(
+      padding: EdgeInsets.only(bottom: 120.h),
+      child: Column(
+        children: [
+          // 插图：340x298rpx，margin 117rpx 顶 / 100rpx 底
+          SizedBox(height: 58.5.h),
+          _buildBacImage(
+            '/StaticResource/2026-04-01/before-class-bac.png',
+            width: 170.w,
+            height: 149.h,
+            fallback: Icons.menu_book_outlined,
+          ),
+          SizedBox(height: 50.h),
+          // 标签
+          _buildLabel('课前讲义'),
+          // 标题
+          _buildTitle(subtitle: '知识点讲义学习'),
+        ],
+      ),
+    );
+  }
+
+  // ---------- 课中视频 ----------
+
+  Widget _buildDuringClass() {
+    return SingleChildScrollView(
+      padding: EdgeInsets.only(bottom: 120.h),
+      child: Column(
+        children: [
+          // 插图：372x240rpx，margin 160rpx 顶 / 85rpx 底
+          SizedBox(height: 80.h),
+          _buildBacImage(
+            '/StaticResource/2026-04-01/during-class-bac.png',
+            width: 186.w,
+            height: 120.h,
+            fallback: Icons.play_circle_outline,
+          ),
+          SizedBox(height: 42.5.h),
+          _buildLabel('课中视频'),
+          _buildTitle(subtitle: '知识点视频学习'),
+        ],
+      ),
+    );
+  }
+
+  // ---------- 课后练习 ----------
+
+  Widget _buildAfterClass() {
+    final isPad = isPadDevice(context);
+    return SingleChildScrollView(
+      child: Column(
+        children: [
+          // 插图：340x340rpx（Pad 400x400rpx），margin 110rpx 顶
+          SizedBox(height: 55.h),
+          _buildBacImage(
+            isPad
+                ? '/StaticResource/2026-06-02/after-class-bac-Pad1780380978172.png'
+                : '/StaticResource/2026-04-01/after-class-bac.png',
+            width: isPad ? 200.w : 170.w,
+            height: isPad ? 200.h : 170.h,
+            fallback: Icons.assignment_outlined,
+          ),
+          // 底 margin：手机 50rpx / Pad 116rpx
+          SizedBox(height: isPad ? 58.h : 25.h),
+          _buildLabel('课后练习'),
+          if (_overcomeInfo.name.isNotEmpty)
+            _buildTitle(
+              subtitle: '知识点题目攻克',
+              padding: EdgeInsets.symmetric(horizontal: 5.w),
+            ),
+          // 提示卡片
+          _buildAfterTipsCard(isPad),
+          SizedBox(height: 14.h),
+        ],
+      ),
+    );
+  }
+
+  // ===================== 公共组件 =====================
+
+  /// 顶部插图（对标各 .xxx-bac 样式，margin auto 居中）
+  Widget _buildBacImage(
+    String url, {
+    required double width,
+    required double height,
+    required IconData fallback,
+  }) {
+    return Center(
+      child: CachedNetworkImage(
+        imageUrl: ImgUrl.build(url),
+        width: width,
+        height: height,
+        fit: BoxFit.contain,
+        placeholder: (_, __) => SizedBox.shrink(),
+        errorWidget: (_, __, ___) => SizedBox(
+          width: width,
+          height: height,
+          child: Icon(fallback, size: 80, color: _primary),
+        ),
+      ),
+    );
+  }
+
+  /// .label：120x40rpx，#E3ECFF 底，8rpx 圆角，24rpx 主色字
+  Widget _buildLabel(String text) {
+    return Container(
+      width: 60.w,
+      height: 20.h,
+      alignment: Alignment.center,
+      margin: EdgeInsets.only(bottom: 12.h),
+      decoration: BoxDecoration(
+        color: _labelBg,
+        borderRadius: BorderRadius.circular(4.r),
+      ),
+      child: Text(
+        text,
+        style: TextStyle(
+          fontSize: 12.sp,
+          color: _primary,
+        ),
+      ),
+    );
+  }
+
+  /// .color-Subtitle.font-36.font-bold600.tc：《name》+ 副标题两行
+  Widget _buildTitle({
+    required String subtitle,
+    EdgeInsetsGeometry? padding,
+  }) {
+    final name = _overcomeInfo.name;
+    final content = name.isNotEmpty ? '《$name》\n$subtitle' : subtitle;
+    return Padding(
+      padding: padding ?? EdgeInsets.zero,
+      child: Text(
+        content,
+        textAlign: TextAlign.center,
+        style: TextStyle(
+          fontSize: 18.sp,
+          fontWeight: FontWeight.w600,
+          color: _textColor,
+        ),
+      ),
+    );
+  }
+
+  /// .default-button1：
+  /// 高 92rpx、横向渐变 #3373FF→#3D7DF5、100rpx 全圆角、
+  /// 阴影 0 15rpx 30rpx rgba(61,125,245,.3)、36rpx 白字
+  Widget _buildPrimaryButton(String text, VoidCallback? onPressed) {
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: onPressed,
+      child: Container(
+        height: 46.h,
+        alignment: Alignment.center,
+        decoration: BoxDecoration(
+          gradient: const LinearGradient(
+            begin: Alignment.centerLeft,
+            end: Alignment.centerRight,
+            colors: [_primaryStrong, _primary],
+          ),
+          borderRadius: BorderRadius.circular(50.r),
+          boxShadow: [
+            BoxShadow(
+              color: const Color(0x4D3D7DF5),
+              offset: Offset(0, 7.5.h),
+              blurRadius: 15.h,
+            ),
+          ],
+        ),
+        child: Text(
+          text,
+          style: TextStyle(
+            fontSize: 18.sp,
+            fontWeight: FontWeight.w500,
+            color: Colors.white,
+          ),
+        ),
+      ),
+    );
+  }
+
+  // ===================== 课后提示卡片（.after-tips） =====================
+
+  Widget _buildAfterTipsCard(bool isPad) {
+    return Align(
+      alignment: Alignment.topCenter,
+      child: Container(
+        // 手机：margin 56rpx 28rpx 0；Pad：margin 260rpx auto 0，宽 1172rpx
+        margin: isPad
+            ? EdgeInsets.only(top: 130.h)
+            : EdgeInsets.only(left: 14.w, right: 14.w, top: 28.h),
+        width: isPad ? 586.w : double.infinity,
+        decoration: BoxDecoration(
+          color: _cardBg,
+          borderRadius: BorderRadius.circular(12.r),
+          image: DecorationImage(
+            image: NetworkImage(
+              ImgUrl.build(
+                isPad
+                    ? '/StaticResource/2026-06-02/after-class-tips-Pad1780381600915.png'
+                    : '/StaticResource/2026-04-01/after-class-tips.png',
+              ),
+            ),
+            fit: BoxFit.fitWidth,
+            alignment: Alignment.topCenter,
+          ),
+        ),
+        child: Stack(
+          clipBehavior: Clip.none,
+          children: [
+            // 内边距：手机 258rpx 28rpx 28rpx / Pad 358rpx 28rpx 28rpx
+            Padding(
+              padding: EdgeInsets.fromLTRB(
+                14.w,
+                isPad ? 179.h : 129.h,
+                14.w,
+                14.h,
+              ),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  _buildTipItem('包含单选、多选、判断、填空全题型'),
+                  _buildTipItem('每题展示深度解析与解题逻辑'),
+                  // 对标 Vue v-if="overcomeInfo.hasQuestion"
+                  if (_overcomeInfo.hasQuestion)
+                    Padding(
+                      padding: EdgeInsets.only(top: 15.h),
+                      child: SizedBox(
+                        width: double.infinity,
+                        height: 46.h,
+                        child: _buildPrimaryButton('正式进入攻克', _startLearning),
+                      ),
+                    ),
+                ],
+              ),
+            ),
+            // 攻克标准百分比（.after-tips-num 绝对定位）
+            Positioned(
+              top: isPad ? 95.h : 65.h,
+              right: isPad ? 200.w : 87.5.w,
+              child: Text(
+                '${_overcomeInfo.overcomeStandard}%',
+                style: TextStyle(
+                  fontSize: isPad ? 19.sp : 16.sp,
+                  fontWeight: FontWeight.w600,
+                  color: _primary,
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// .after-tips-li：28rpx 副色文字，左 padding 48rpx，底 padding 8rpx；
+  /// ::before 圆点 8rpx #3D7DF5，left 14rpx 垂直居中
+  Widget _buildTipItem(String text) {
+    return Stack(
+      clipBehavior: Clip.none,
+      children: [
+        Padding(
+          padding: EdgeInsets.only(left: 24.w, bottom: 4.h),
+          child: Text(
+            text,
+            style: TextStyle(
+              fontSize: 14.sp,
+              color: _textColor,
+            ),
+          ),
+        ),
+        Positioned(
+          left: 7.w,
+          top: 0,
+          bottom: 0,
+          child: Center(
+            child: Container(
+              width: 4.w,
+              height: 4.w,
+              decoration: const BoxDecoration(
+                color: _primary,
+                shape: BoxShape.circle,
+              ),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}
+
+/// ============================================================
+/// 【_SlideMask】滑动蒙层引导组件
+/// 对标 Vue pages/conquerPackage/transitionPage/slide-mask.vue
+///
+/// 功能：
+///   - 半透明黑色蒙层背景（rgba(0,0,0,.55)）
+///   - 显示引导图
+///   - 向左滑动超过阈值 → 整个蒙层 0.2s 滑出屏幕并触发 onClose
+///   - 滑动不足阈值 → 0.15s 回弹
+/// ============================================================
+class _SlideMask extends StatefulWidget {
+  const _SlideMask({
+    required this.visible,
+    required this.onClose,
+    this.slideThreshold = 80.0,
+  });
+
+  final bool visible;
+  final VoidCallback onClose;
+  final double slideThreshold;
+
+  @override
+  State<_SlideMask> createState() => _SlideMaskState();
+}
+
+class _SlideMaskState extends State<_SlideMask>
+    with SingleTickerProviderStateMixin {
+  double _offsetX = 0;
+  double _startX = 0;
+  bool _isSliding = false;
+  bool _isAnimatingOut = false;
+  late final AnimationController _controller;
+  Animation<double> _anim = const AlwaysStoppedAnimation<double>(0);
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = AnimationController(
+      vsync: this,
+      duration: const Duration(milliseconds: 200),
+    );
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  void didUpdateWidget(covariant _SlideMask oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.visible && !oldWidget.visible) {
+      _resetState();
+    }
+  }
+
+  void _resetState() {
+    _controller.stop();
+    _controller.reset();
+    _anim = const AlwaysStoppedAnimation<double>(0);
+    _offsetX = 0;
+    _isSliding = false;
+    _isAnimatingOut = false;
+  }
+
+  /// 偏移量动画（跟手结束后：回弹 / 滑出）
+  void _animateTo(
+    double target, {
+    required int milliseconds,
+    required Curve curve,
+    VoidCallback? onCompleted,
+  }) {
+    _controller.duration = Duration(milliseconds: milliseconds);
+    final animation = Tween<double>(begin: _offsetX, end: target).animate(
+      CurvedAnimation(parent: _controller, curve: curve),
+    );
+    animation.addStatusListener((status) {
+      if (status == AnimationStatus.completed) onCompleted?.call();
+    });
+    setState(() => _anim = animation);
+    _controller.forward(from: 0);
+  }
+
+  void _handleTouchStart(DragStartDetails details) {
+    if (!widget.visible || _isAnimatingOut) return;
+    _controller.stop();
+    _startX = details.globalPosition.dx;
+    _isSliding = true;
+    // 对标 Vue：touchstart 时偏移量归零
+    setState(() => _offsetX = 0);
+  }
+
+  void _handleTouchUpdate(DragUpdateDetails details) {
+    if (!widget.visible || !_isSliding || _isAnimatingOut) return;
+    final moveX = details.globalPosition.dx;
+    final diffX = _startX - moveX;
+    // 仅处理向左滑动
+    if (diffX > 0) {
+      setState(() => _offsetX = -diffX);
+    }
+  }
+
+  void _handleTouchEnd(DragEndDetails details) {
+    if (!widget.visible || !_isSliding) return;
+    _isSliding = false;
+
+    if (_offsetX.abs() >= widget.slideThreshold) {
+      // 超过阈值 → 0.2s 滑出动画
+      _startSlideOut();
+    } else {
+      // 不足阈值 → 0.15s ease-out 回弹
+      _animateTo(
+        0,
+        milliseconds: 150,
+        curve: Curves.easeOut,
+        onCompleted: () {
+          if (mounted) setState(() => _offsetX = 0);
+        },
+      );
+    }
+  }
+
+  void _startSlideOut() {
+    _isAnimatingOut = true;
+    final screenWidth = MediaQuery.of(context).size.width;
+    _animateTo(
+      -screenWidth,
+      milliseconds: 200,
+      curve: Curves.easeInOut,
+      onCompleted: () {
+        if (mounted) widget.onClose();
+      },
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (!widget.visible) return const SizedBox.shrink();
+
+    return AnimatedBuilder(
+      animation: _anim,
+      builder: (context, child) {
+        final dx = _isSliding ? _offsetX : _anim.value;
+        return Positioned.fill(
+          child: GestureDetector(
+            onHorizontalDragStart: _handleTouchStart,
+            onHorizontalDragUpdate: _handleTouchUpdate,
+            onHorizontalDragEnd: _handleTouchEnd,
+            behavior: HitTestBehavior.opaque,
+            child: Transform.translate(
+              offset: Offset(dx, 0),
+              child: Container(
+                color: const Color(0x8C000000), // 55% 透明黑
+                child: Stack(
+                  children: [
+                    // 引导图：489x245rpx，bottom 374rpx，水平居中
+                    Positioned(
+                      left: 0,
+                      right: 0,
+                      bottom: 187.h,
+                      child: Center(
+                        child: CachedNetworkImage(
+                          imageUrl: ImgUrl.build(
+                            '/StaticResource/2026-04-01/guidance.png',
+                          ),
+                          width: 244.5.w,
+                          height: 122.5.h,
+                          fit: BoxFit.contain,
+                          placeholder: (_, __) => SizedBox.shrink(),
+                          errorWidget: (_, __, ___) => SizedBox(
+                            width: 244.5.w,
+                            height: 122.5.h,
+                            child: const Icon(
+                              Icons.swipe_left,
+                              color: Colors.white,
+                              size: 60,
+                            ),
+                          ),
+                        ),
+                      ),
+                    ),
+                  ],
+                ),
+              ),
+            ),
+          ),
+        );
+      },
+    );
+  }
+}

lib/features/task/task_page.dart

@@ -240,7 +240,7 @@ class TaskPage extends StatelessWidget {
         WidgetsBinding.instance.addPostFrameCallback((_) {
           if (context.mounted) {
             context.push('/conquerPackage/captureList',
-                extra: '841985856751366');
+                extra: '841985856751368');
           }
         });
       },

pubspec.lock

@@ -675,6 +675,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.7.0"
+  flutter_svg:
+    dependency: "direct main"
+    description:
+      name: flutter_svg
+      sha256: "35882981abcbfb8c15b286f0cd690ff25bac12d95eff3e25ee207f37d4c42e7f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.0"
   flutter_test:
     dependency: "direct dev"
     description: flutter
@@ -1143,6 +1151,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  path_parsing:
+    dependency: transitive
+    description:
+      name: path_parsing
+      sha256: "883402936929eac138ee0a45da5b0f2c80f89913e6dc3bf77eb65b84b409c6ca"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
   path_provider:
     dependency: "direct main"
     description:
@@ -1748,6 +1764,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.6.0"
+  vector_graphics:
+    dependency: transitive
+    description:
+      name: vector_graphics
+      sha256: "9d0e3b9cb16542ad660daee871e726a10d13a93b7b5391677c3160e8f5e83935"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.3"
+  vector_graphics_codec:
+    dependency: transitive
+    description:
+      name: vector_graphics_codec
+      sha256: "99fd9fbd34d9f9a32efd7b6a6aae14125d8237b10403b422a6a6dfeac2806146"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.13"
+  vector_graphics_compiler:
+    dependency: transitive
+    description:
+      name: vector_graphics_compiler
+      sha256: "4dca4feb77dc3ec7f6e27e49c53241eb8217f55e4f9b12599a27f8903bca5682"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
   vector_math:
     dependency: transitive
     description:

pubspec.yaml

@@ -119,6 +119,7 @@ dependencies:
   #     替换（customWidgetBuilder），video 留扩展点，图片/表格原生支持。
   #   版本：0.17.x 要求 Flutter 3.32+ / just_audio ^0.10.4（本项目满足）
   flutter_widget_from_html_core: ^0.17.2
+  flutter_svg: ^2.0.17
 
   # 图片预览：社区成熟方案，支持双指缩放/拖拽/多图左右切换
   #   单图用 PhotoView，多图用 PhotoViewGallery；
@@ -240,6 +241,7 @@ flutter:
   # 所以 img/tabbar 下的 PNG 必须单独列一行。
   assets:
     - assets/
+    - assets/mock/
     - assets/img/tabbar/
     - assets/img/tabbar/default/
     - assets/audio/

tool/tmp_parse_check.dart

@@ -0,0 +1,42 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:new_learn/core/utils/question/exam_answer_card.dart';
+import 'package:new_learn/core/utils/question/question_parser.dart';
+import 'package:new_learn/features/conquerPackage/classExercises/models/question_model.dart';
+
+void main() {
+  final raw = File(
+    'assets/mock/class_exercises_edit.json',
+  ).readAsStringSync();
+  final list = jsonDecode(raw) as List;
+
+  for (final subjectId in [0, 2, 3]) {
+    print('########## subjectId=$subjectId ##########');
+    for (final idx in [11, 12]) {
+      final item = Map<String, dynamic>.from(list[idx] as Map);
+
+      final parsed = parseQuestionData(item, mergeOriginalChilds: true);
+      var sorted = appendQuestionSort([parsed]);
+      sorted = appendExamQuestionChildOptionStatus(sorted, subjectId);
+
+      final q = QuestionModel(sorted.first);
+      print(
+        'Q$idx ${q.questionTypes}: hasOptionChildrenQuestion='
+        '${q.hasOptionChildrenQuestion} subs=${q.subQuestions.length} '
+        'childs=${q.childs.length}',
+      );
+      for (var i = 0; i < q.subQuestions.length; i++) {
+        final s = q.subQuestions[i];
+        final cleaned = cleanRichText(stripOptionTable(s.stem));
+        print(
+          '  sub$i options=${s.options.length} '
+          'cleanedStemLen=${cleaned.length} '
+          'cleanedStem=${cleaned.length > 120 ? cleaned.substring(0, 120) : cleaned}',
+        );
+        if (i == 1) break;
+      }
+      if (q.subQuestions.length > 2) print('  ...');
+    }
+  }
+}