diff --git a/lib/models/data_models.dart b/lib/models/data_models.dart
index 35f0e6d..1dc05c4 100644
--- a/lib/models/data_models.dart
+++ b/lib/models/data_models.dart
@@ -64,11 +64,11 @@ class Movie {
       watchDate: json['watch_date'] != null
           ? DateTime.parse(json['watch_date'])
           : null,
-      createdAt: json['created_at'] != null 
-          ? DateTime.parse(json['created_at']) 
+      createdAt: json['created_at'] != null
+          ? DateTime.parse(json['created_at'])
           : DateTime.now(),
-      updatedAt: json['updated_at'] != null 
-          ? DateTime.parse(json['updated_at']) 
+      updatedAt: json['updated_at'] != null
+          ? DateTime.parse(json['updated_at'])
           : DateTime.now(),
       isDeleted: json['is_deleted'] == 1 || json['is_deleted'] == true,
     );
@@ -79,7 +79,7 @@ class Movie {
       'id': id,
       'title': title,
       'poster_path': posterPath,
-      'release_date': releaseDate?.toIso8601String(),
+      'release_date': releaseDate?.toUtc().toUtc().toIso8601String(),
       'directors': jsonEncode(directors),
       'writers': jsonEncode(writers),
       'actors': jsonEncode(actors),
@@ -88,9 +88,9 @@ class Movie {
       'summary': summary,
       'rating': rating,
       'status': status,
-      'watch_date': watchDate?.toIso8601String(),
-      'created_at': createdAt.toIso8601String(),
-      'updated_at': updatedAt.toIso8601String(),
+      'watch_date': watchDate?.toUtc().toIso8601String(),
+      'created_at': createdAt.toUtc().toIso8601String(),
+      'updated_at': updatedAt.toUtc().toIso8601String(),
       'is_deleted': isDeleted ? 1 : 0,
     };
   }
@@ -217,11 +217,11 @@ class Book {
       publishDate: json['publish_date'] != null
           ? DateTime.parse(json['publish_date'])
           : null,
-      createdAt: json['created_at'] != null 
-          ? DateTime.parse(json['created_at']) 
+      createdAt: json['created_at'] != null
+          ? DateTime.parse(json['created_at'])
           : DateTime.now(),
-      updatedAt: json['updated_at'] != null 
-          ? DateTime.parse(json['updated_at']) 
+      updatedAt: json['updated_at'] != null
+          ? DateTime.parse(json['updated_at'])
           : DateTime.now(),
       isDeleted: json['is_deleted'] == 1 || json['is_deleted'] == true,
     );
@@ -240,9 +240,9 @@ class Book {
       'rating': rating,
       'status': status,
       'isbn': isbn,
-      'publish_date': publishDate?.toIso8601String(),
-      'created_at': createdAt.toIso8601String(),
-      'updated_at': updatedAt.toIso8601String(),
+      'publish_date': publishDate?.toUtc().toIso8601String(),
+      'created_at': createdAt.toUtc().toIso8601String(),
+      'updated_at': updatedAt.toUtc().toIso8601String(),
       'is_deleted': isDeleted ? 1 : 0,
     };
   }
@@ -323,11 +323,11 @@ class Note {
       contentType: json['content_type'] ?? 'markdown',
       tags: Movie.parseStringList(json['tags']),
       images: Movie.parseStringList(json['images']),
-      createdAt: json['created_at'] != null 
-          ? DateTime.parse(json['created_at']) 
+      createdAt: json['created_at'] != null
+          ? DateTime.parse(json['created_at'])
           : DateTime.now(),
-      updatedAt: json['updated_at'] != null 
-          ? DateTime.parse(json['updated_at']) 
+      updatedAt: json['updated_at'] != null
+          ? DateTime.parse(json['updated_at'])
           : DateTime.now(),
       isDeleted: json['is_deleted'] == 1 || json['is_deleted'] == true,
     );
@@ -341,8 +341,8 @@ class Note {
       'content_type': contentType,
       'tags': jsonEncode(tags),
       'images': jsonEncode(images),
-      'created_at': createdAt.toIso8601String(),
-      'updated_at': updatedAt.toIso8601String(),
+      'created_at': createdAt.toUtc().toIso8601String(),
+      'updated_at': updatedAt.toUtc().toIso8601String(),
       'is_deleted': isDeleted ? 1 : 0,
     };
   }
@@ -412,11 +412,11 @@ class MovieReview {
       source: json['source'] ?? '',
       reviewType: json['review_type'] ?? 1,
       isDeleted: json['is_deleted'] == 1 || json['is_deleted'] == true,
-      createdAt: json['created_at'] != null 
-          ? DateTime.parse(json['created_at']) 
+      createdAt: json['created_at'] != null
+          ? DateTime.parse(json['created_at'])
           : DateTime.now(),
-      updatedAt: json['updated_at'] != null 
-          ? DateTime.parse(json['updated_at']) 
+      updatedAt: json['updated_at'] != null
+          ? DateTime.parse(json['updated_at'])
           : DateTime.now(),
     );
   }
@@ -430,8 +430,8 @@ class MovieReview {
       'source': source,
       'review_type': reviewType,
       'is_deleted': isDeleted ? 1 : 0,
-      'created_at': createdAt.toIso8601String(),
-      'updated_at': updatedAt.toIso8601String(),
+      'created_at': createdAt.toUtc().toIso8601String(),
+      'updated_at': updatedAt.toUtc().toIso8601String(),
     };
   }
   
@@ -504,7 +504,7 @@ class MoviePoster {
       'movie_id': movieId,
       'poster_path': posterPath,
       'is_deleted': isDeleted ? 1 : 0,
-      'created_at': createdAt.toIso8601String(),
+      'created_at': createdAt.toUtc().toIso8601String(),
     };
   }
   
@@ -566,8 +566,8 @@ class BookReview {
       'source': source,
       'review_type': reviewType,
       'is_deleted': isDeleted ? 1 : 0,
-      'created_at': createdAt.toIso8601String(),
-      'updated_at': updatedAt.toIso8601String(),
+      'created_at': createdAt.toUtc().toIso8601String(),
+      'updated_at': updatedAt.toUtc().toIso8601String(),
     };
   }
 
@@ -653,8 +653,8 @@ class BookExcerpt {
       'content': content,
       'comment': comment,
       'is_deleted': isDeleted ? 1 : 0,
-      'created_at': createdAt.toIso8601String(),
-      'updated_at': updatedAt.toIso8601String(),
+      'created_at': createdAt.toUtc().toIso8601String(),
+      'updated_at': updatedAt.toUtc().toIso8601String(),
     };
   }
 
diff --git a/lib/pages/book/book_detail_page.dart b/lib/pages/book/book_detail_page.dart
index b273473..392d570 100644
--- a/lib/pages/book/book_detail_page.dart
+++ b/lib/pages/book/book_detail_page.dart
@@ -22,17 +22,6 @@ class BookDetailPage extends StatefulWidget {
 }
 
 class _BookDetailPageState extends State<BookDetailPage> {
-  @override
-  void didChangeDependencies() {
-    super.didChangeDependencies();
-    _refreshBookData();
-  }
-
-  void _refreshBookData() {
-    final provider = context.read<AppProvider>();
-    provider.loadBooks();
-  }
-
   @override
   Widget build(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
diff --git a/lib/pages/sync/server_sync_page.dart b/lib/pages/sync/server_sync_page.dart
index eb2f69a..17c25b8 100644
--- a/lib/pages/sync/server_sync_page.dart
+++ b/lib/pages/sync/server_sync_page.dart
@@ -138,16 +138,18 @@ class _ServerSyncPageState extends State<ServerSyncPage> {
       await provider.loadNotes();
       if (mounted) ToastUtil.show(context, '同步已开启，数据已合并');
     } else {
-      // 关闭同步：先合并最新数据，再切换到本地
-      if (mounted) ToastUtil.show(context, '正在同步数据到本地...');
-      await ServerSyncService.instance.syncWithServer();
+      // 关闭同步：从服务器下载数据库和图片到本地
+      if (mounted) ToastUtil.show(context, '正在从服务器下载数据...');
+      final success = await ServerSyncService.instance.downloadToLocal();
       await _prefs.setSyncEnabled(false);
       setState(() => _syncEnabled = false);
       final provider = context.read<AppProvider>();
       await provider.loadMovies();
       await provider.loadBooks();
       await provider.loadNotes();
-      if (mounted) ToastUtil.show(context, '同步已关闭，已切换到本地数据');
+      if (mounted) {
+        ToastUtil.show(context, success ? '数据已下载到本地' : '服务器无备份，保留本地数据');
+      }
     }
   }
 
diff --git a/lib/providers/app_provider.dart b/lib/providers/app_provider.dart
index 55a09c3..d2159c3 100644
--- a/lib/providers/app_provider.dart
+++ b/lib/providers/app_provider.dart
@@ -353,58 +353,73 @@ class AppProvider extends ChangeNotifier {
   }
   
   // ========== 影评相关方法 ==========
-  
+
   /// 获取影视的所有影评
   Future<List<MovieReview>> getMovieReviews(String movieId) async {
+    if (_useRemote) return await ServerDataService.instance.getMovieReviews(movieId);
     return await _reviewDao.getReviewsByMovieId(movieId);
   }
-  
+
   /// 添加影评
   Future<void> addMovieReview(MovieReview review) async {
-    await _reviewDao.insertReview(review);
+    if (_useRemote) await ServerDataService.instance.saveMovieReview(review);
+    else await _reviewDao.insertReview(review);
   }
-  
+
   /// 更新影评
   Future<void> updateMovieReview(MovieReview review) async {
-    await _reviewDao.updateReview(review);
+    if (_useRemote) await ServerDataService.instance.saveMovieReview(review);
+    else await _reviewDao.updateReview(review);
   }
-  
+
   /// 删除影评
   Future<void> removeMovieReview(String id) async {
-    await _reviewDao.deleteReview(id);
+    if (_useRemote) await ServerDataService.instance.deleteMovieReview(id);
+    else await _reviewDao.deleteReview(id);
   }
-  
+
   /// 获取影视的影评数量
   Future<int> getMovieReviewCount(String movieId) async {
+    if (_useRemote) {
+      final reviews = await ServerDataService.instance.getMovieReviews(movieId);
+      return reviews.length;
+    }
     return await _reviewDao.getReviewCount(movieId);
   }
-  
+
   // ========== 海报墙相关方法 ==========
-  
+
   /// 获取影视的所有海报
   Future<List<MoviePoster>> getMoviePosters(String movieId) async {
+    if (_useRemote) return await ServerDataService.instance.getMoviePosters(movieId);
     return await _posterDao.getPostersByMovieId(movieId);
   }
-  
+
   /// 添加海报
   Future<void> addMoviePoster(MoviePoster poster) async {
-    await _posterDao.insertPoster(poster);
+    if (_useRemote) await ServerDataService.instance.saveMoviePoster(poster);
+    else await _posterDao.insertPoster(poster);
   }
-  
+
   /// 删除海报
   Future<void> removeMoviePoster(String id) async {
-    // 先获取海报信息，以便删除文件
+    if (_useRemote) {
+      await ServerDataService.instance.deleteMoviePoster(id);
+      return;
+    }
     final poster = await _posterDao.getPosterById(id);
     if (poster != null) {
-      // 删除海报文件
       await ImagePathHelper.instance.deleteFile(poster.posterPath);
     }
-    
     await _posterDao.deletePoster(id);
   }
-  
+
   /// 获取影视的海报数量
   Future<int> getMoviePosterCount(String movieId) async {
+    if (_useRemote) {
+      final posters = await ServerDataService.instance.getMoviePosters(movieId);
+      return posters.length;
+    }
     return await _posterDao.getPosterCount(movieId);
   }
 
@@ -412,26 +427,34 @@ class AppProvider extends ChangeNotifier {
 
   /// 获取书籍的所有书评
   Future<List<BookReview>> getBookReviews(String bookId) async {
+    if (_useRemote) return await ServerDataService.instance.getBookReviews(bookId);
     return await _bookReviewDao.getReviewsByBookId(bookId);
   }
 
   /// 添加书评
   Future<void> addBookReview(BookReview review) async {
-    await _bookReviewDao.insertReview(review);
+    if (_useRemote) await ServerDataService.instance.saveBookReview(review);
+    else await _bookReviewDao.insertReview(review);
   }
 
   /// 更新书评
   Future<void> updateBookReview(BookReview review) async {
-    await _bookReviewDao.updateReview(review);
+    if (_useRemote) await ServerDataService.instance.saveBookReview(review);
+    else await _bookReviewDao.updateReview(review);
   }
 
   /// 删除书评
   Future<void> removeBookReview(String id) async {
-    await _bookReviewDao.deleteReview(id);
+    if (_useRemote) await ServerDataService.instance.deleteBookReview(id);
+    else await _bookReviewDao.deleteReview(id);
   }
 
   /// 获取书籍的书评数量
   Future<int> getBookReviewCount(String bookId) async {
+    if (_useRemote) {
+      final reviews = await ServerDataService.instance.getBookReviews(bookId);
+      return reviews.length;
+    }
     return await _bookReviewDao.getReviewCount(bookId);
   }
 
@@ -439,26 +462,34 @@ class AppProvider extends ChangeNotifier {
 
   /// 获取书籍的所有摘抄
   Future<List<BookExcerpt>> getBookExcerpts(String bookId) async {
+    if (_useRemote) return await ServerDataService.instance.getBookExcerpts(bookId);
     return await _bookExcerptDao.getExcerptsByBookId(bookId);
   }
 
   /// 添加摘抄
   Future<void> addBookExcerpt(BookExcerpt excerpt) async {
-    await _bookExcerptDao.insertExcerpt(excerpt);
+    if (_useRemote) await ServerDataService.instance.saveBookExcerpt(excerpt);
+    else await _bookExcerptDao.insertExcerpt(excerpt);
   }
 
   /// 更新摘抄
   Future<void> updateBookExcerpt(BookExcerpt excerpt) async {
-    await _bookExcerptDao.updateExcerpt(excerpt);
+    if (_useRemote) await ServerDataService.instance.saveBookExcerpt(excerpt);
+    else await _bookExcerptDao.updateExcerpt(excerpt);
   }
 
   /// 删除摘抄
   Future<void> removeBookExcerpt(String id) async {
-    await _bookExcerptDao.deleteExcerpt(id);
+    if (_useRemote) await ServerDataService.instance.deleteBookExcerpt(id);
+    else await _bookExcerptDao.deleteExcerpt(id);
   }
 
   /// 获取书籍的摘抄数量
   Future<int> getBookExcerptCount(String bookId) async {
+    if (_useRemote) {
+      final excerpts = await ServerDataService.instance.getBookExcerpts(bookId);
+      return excerpts.length;
+    }
     return await _bookExcerptDao.getExcerptCount(bookId);
   }
 
diff --git a/lib/utils/sync/backup_service.dart b/lib/utils/sync/backup_service.dart
index 8932146..0012446 100644
--- a/lib/utils/sync/backup_service.dart
+++ b/lib/utils/sync/backup_service.dart
@@ -27,6 +27,8 @@ class BackupService {
       final notes = await db.query('notes');
       final movieReviews = await db.query('movie_reviews');
       final moviePosters = await db.query('movie_posters');
+      final bookReviews = await db.query('book_reviews');
+      final bookExcerpts = await db.query('book_excerpts');
       final tags = await db.query('tags');
       
       // 收集所有图片路径
@@ -100,6 +102,8 @@ class BackupService {
           'notes': notes,
           'movie_reviews': movieReviews,
           'movie_posters': moviePosters,
+          'book_reviews': bookReviews,
+          'book_excerpts': bookExcerpts,
           'tags': tags,
         },
       };
@@ -211,6 +215,8 @@ class BackupService {
       final notes = await db.query('notes');
       final movieReviews = await db.query('movie_reviews');
       final moviePosters = await db.query('movie_posters');
+      final bookReviews = await db.query('book_reviews');
+      final bookExcerpts = await db.query('book_excerpts');
       final tags = await db.query('tags');
       
       // 收集所有图片路径
@@ -284,6 +290,8 @@ class BackupService {
           'notes': notes,
           'movie_reviews': movieReviews,
           'movie_posters': moviePosters,
+          'book_reviews': bookReviews,
+          'book_excerpts': bookExcerpts,
           'tags': tags,
         },
       };
@@ -425,6 +433,8 @@ class BackupService {
         // 清空现有数据
         await txn.delete('movie_reviews');
         await txn.delete('movie_posters');
+        await txn.delete('book_reviews');
+        await txn.delete('book_excerpts');
         await txn.delete('movies');
         await txn.delete('books');
         await txn.delete('notes');
@@ -477,6 +487,20 @@ class BackupService {
             await txn.insert('movie_posters', updatedMap);
           }
         }
+        // 导入书评数据
+        if (data.containsKey('book_reviews')) {
+          final reviews = data['book_reviews'] as List<dynamic>;
+          for (final review in reviews) {
+            await txn.insert('book_reviews', _convertToDbMap(review));
+          }
+        }
+        // 导入书摘数据
+        if (data.containsKey('book_excerpts')) {
+          final excerpts = data['book_excerpts'] as List<dynamic>;
+          for (final excerpt in excerpts) {
+            await txn.insert('book_excerpts', _convertToDbMap(excerpt));
+          }
+        }
 
         // 导入标签数据
         if (data.containsKey('tags')) {
@@ -597,6 +621,8 @@ class BackupService {
         // 清空现有数据
         await txn.delete('movie_reviews');
         await txn.delete('movie_posters');
+        await txn.delete('book_reviews');
+        await txn.delete('book_excerpts');
         await txn.delete('movies');
         await txn.delete('books');
         await txn.delete('notes');
@@ -643,6 +669,20 @@ class BackupService {
             await txn.insert('movie_posters', updatedMap);
           }
         }
+        // 导入书评数据
+        if (data.containsKey('book_reviews')) {
+          final reviews = data['book_reviews'] as List<dynamic>;
+          for (final review in reviews) {
+            await txn.insert('book_reviews', _convertToDbMap(review));
+          }
+        }
+        // 导入书摘数据
+        if (data.containsKey('book_excerpts')) {
+          final excerpts = data['book_excerpts'] as List<dynamic>;
+          for (final excerpt in excerpts) {
+            await txn.insert('book_excerpts', _convertToDbMap(excerpt));
+          }
+        }
 
         // 导入标签数据
         if (data.containsKey('tags')) {
@@ -686,6 +726,8 @@ class BackupService {
       if (data.containsKey('notes')) stats['笔记'] = (data['notes'] as List).length;
       if (data.containsKey('movie_reviews')) stats['影评'] = (data['movie_reviews'] as List).length;
       if (data.containsKey('movie_posters')) stats['海报'] = (data['movie_posters'] as List).length;
+      if (data.containsKey('book_reviews')) stats['书评'] = (data['book_reviews'] as List).length;
+      if (data.containsKey('book_excerpts')) stats['书摘'] = (data['book_excerpts'] as List).length;
       if (imageCount > 0) stats['图片'] = imageCount;
 
       return ImportResult.success(stats);
diff --git a/lib/utils/sync/server_data_service.dart b/lib/utils/sync/server_data_service.dart
index 5b51e60..e9b7ae7 100644
--- a/lib/utils/sync/server_data_service.dart
+++ b/lib/utils/sync/server_data_service.dart
@@ -108,6 +108,102 @@ class ServerDataService {
     return data != null;
   }
 
+  // ─── 影评 ────────────────────────────────────────────────────
+
+  Future<List<MovieReview>> getMovieReviews(String movieId) async {
+    final data = await _post('/api/data/movie_reviews', {'movie_id': movieId});
+    if (data == null || data['reviews'] == null) return [];
+    return (data['reviews'] as List).map((r) => MovieReview.fromJson(r as Map<String, dynamic>)).toList();
+  }
+
+  Future<List<MovieReview>> getAllMovieReviews() async {
+    final data = await _post('/api/data/movie_reviews');
+    if (data == null || data['reviews'] == null) return [];
+    return (data['reviews'] as List).map((r) => MovieReview.fromJson(r as Map<String, dynamic>)).toList();
+  }
+
+  Future<bool> saveMovieReview(MovieReview review) async {
+    final data = await _post('/api/data/movie_review/save', {'review': review.toJson()});
+    return data != null;
+  }
+
+  Future<bool> deleteMovieReview(String id) async {
+    final data = await _post('/api/data/movie_review/delete', {'id': id});
+    return data != null;
+  }
+
+  // ─── 海报 ────────────────────────────────────────────────────
+
+  Future<List<MoviePoster>> getMoviePosters(String movieId) async {
+    final data = await _post('/api/data/movie_posters', {'movie_id': movieId});
+    if (data == null || data['posters'] == null) return [];
+    return (data['posters'] as List).map((p) => MoviePoster.fromJson(p as Map<String, dynamic>)).toList();
+  }
+
+  Future<List<MoviePoster>> getAllMoviePosters() async {
+    final data = await _post('/api/data/movie_posters');
+    if (data == null || data['posters'] == null) return [];
+    return (data['posters'] as List).map((p) => MoviePoster.fromJson(p as Map<String, dynamic>)).toList();
+  }
+
+  Future<bool> saveMoviePoster(MoviePoster poster) async {
+    final data = await _post('/api/data/movie_poster/save', {'poster': poster.toJson()});
+    return data != null;
+  }
+
+  Future<bool> deleteMoviePoster(String id) async {
+    final data = await _post('/api/data/movie_poster/delete', {'id': id});
+    return data != null;
+  }
+
+  // ─── 书评 ────────────────────────────────────────────────────
+
+  Future<List<BookReview>> getBookReviews(String bookId) async {
+    final data = await _post('/api/data/book_reviews', {'book_id': bookId});
+    if (data == null || data['reviews'] == null) return [];
+    return (data['reviews'] as List).map((r) => BookReview.fromJson(r as Map<String, dynamic>)).toList();
+  }
+
+  Future<List<BookReview>> getAllBookReviews() async {
+    final data = await _post('/api/data/book_reviews');
+    if (data == null || data['reviews'] == null) return [];
+    return (data['reviews'] as List).map((r) => BookReview.fromJson(r as Map<String, dynamic>)).toList();
+  }
+
+  Future<bool> saveBookReview(BookReview review) async {
+    final data = await _post('/api/data/book_review/save', {'review': review.toJson()});
+    return data != null;
+  }
+
+  Future<bool> deleteBookReview(String id) async {
+    final data = await _post('/api/data/book_review/delete', {'id': id});
+    return data != null;
+  }
+
+  // ─── 书摘 ────────────────────────────────────────────────────
+
+  Future<List<BookExcerpt>> getBookExcerpts(String bookId) async {
+    final data = await _post('/api/data/book_excerpts', {'book_id': bookId});
+    if (data == null || data['excerpts'] == null) return [];
+    return (data['excerpts'] as List).map((e) => BookExcerpt.fromJson(e as Map<String, dynamic>)).toList();
+  }
+
+  Future<List<BookExcerpt>> getAllBookExcerpts() async {
+    final data = await _post('/api/data/book_excerpts');
+    if (data == null || data['excerpts'] == null) return [];
+    return (data['excerpts'] as List).map((e) => BookExcerpt.fromJson(e as Map<String, dynamic>)).toList();
+  }
+
+  Future<bool> saveBookExcerpt(BookExcerpt excerpt) async {
+    final data = await _post('/api/data/book_excerpt/save', {'excerpt': excerpt.toJson()});
+    return data != null;
+  }
+
+  Future<bool> deleteBookExcerpt(String id) async {
+    final data = await _post('/api/data/book_excerpt/delete', {'id': id});
+    return data != null;
+  }
+
   // ─── 批量同步 ────────────────────────────────────────────────
 
   Future<Map<String, int>> batchSync({
@@ -115,12 +211,20 @@ class ServerDataService {
     List<Book>? books,
     List<Note>? notes,
     List<Map<String, dynamic>>? tags,
+    List<Map<String, dynamic>>? movieReviews,
+    List<Map<String, dynamic>>? moviePosters,
+    List<Map<String, dynamic>>? bookReviews,
+    List<Map<String, dynamic>>? bookExcerpts,
   }) async {
     final data = await _post('/api/data/batch_sync', {
       if (movies != null) 'movies': movies.map((m) => m.toJson()).toList(),
       if (books != null) 'books': books.map((b) => b.toJson()).toList(),
       if (notes != null) 'notes': notes.map((n) => n.toJson()).toList(),
       if (tags != null) 'tags': tags,
+      if (movieReviews != null) 'movie_reviews': movieReviews,
+      if (moviePosters != null) 'movie_posters': moviePosters,
+      if (bookReviews != null) 'book_reviews': bookReviews,
+      if (bookExcerpts != null) 'book_excerpts': bookExcerpts,
     });
     if (data == null) return {};
     return {
@@ -128,6 +232,10 @@ class ServerDataService {
       'books': (data['books'] as int?) ?? 0,
       'notes': (data['notes'] as int?) ?? 0,
       'tags': (data['tags'] as int?) ?? 0,
+      'movie_reviews': (data['movie_reviews'] as int?) ?? 0,
+      'movie_posters': (data['movie_posters'] as int?) ?? 0,
+      'book_reviews': (data['book_reviews'] as int?) ?? 0,
+      'book_excerpts': (data['book_excerpts'] as int?) ?? 0,
     };
   }
 
@@ -168,9 +276,11 @@ class ServerDataService {
 
   /// 批量上传图片到服务端（自动计算相对路径）
   static Future<void> uploadLocalImages(List<String> filePaths) async {
+    debugPrint('[Sync] uploadLocalImages: isActive=$isActive count=${filePaths.length}');
     if (!isActive || filePaths.isEmpty) return;
+    debugPrint('[Sync] 调用 uploadImages...');
     final result = await instance.uploadImages(filePaths);
-    debugPrint('[Sync] 上传 ${result.length}/${filePaths.length} 张图片');
+    debugPrint('[Sync] uploadImages 返回: ${result.length} 个文件');
   }
 
   /// 上传单张图片到服务端
@@ -185,20 +295,29 @@ class ServerDataService {
   }
 
   Future<List<String>> uploadImages(List<String> filePaths) async {
+    debugPrint('[Sync] uploadImages: 准备上传 ${filePaths.length} 个文件到 $_baseUrl/api/data/image/upload');
     final request = http.MultipartRequest('POST', Uri.parse('$_baseUrl/api/data/image/upload'));
     request.fields['code'] = _code;
     final appDir = (await getApplicationDocumentsDirectory()).path;
     for (final path in filePaths) {
       final relPath = p.relative(path, from: appDir).replaceAll('\\', '/');
       final file = File(path);
-      request.files.add(await http.MultipartFile(
-        'images', file.readAsBytes().asStream(), await file.length(),
-        filename: relPath,
-      ));
+      final exists = await file.exists();
+      final size = exists ? await file.length() : 0;
+      debugPrint('[Sync]   图片: $relPath (存在=$exists 大小=$size)');
+      if (exists) {
+        request.files.add(await http.MultipartFile(
+          'images', file.readAsBytes().asStream(), size,
+          filename: relPath,
+        ));
+      }
     }
+    debugPrint('[Sync] 发送 upload 请求 (${request.files.length} 个文件)...');
     final resp = await request.send().timeout(const Duration(seconds: 60));
+    debugPrint('[Sync] upload 响应: ${resp.statusCode}');
     if (resp.statusCode != 200) return [];
     final body = await resp.stream.bytesToString();
+    debugPrint('[Sync] upload 响应体: $body');
     final data = jsonDecode(body) as Map<String, dynamic>;
     return (data['files'] as List?)?.cast<String>() ?? [];
   }
diff --git a/lib/utils/sync/server_sync_service.dart b/lib/utils/sync/server_sync_service.dart
index c762640..24bff6a 100644
--- a/lib/utils/sync/server_sync_service.dart
+++ b/lib/utils/sync/server_sync_service.dart
@@ -53,32 +53,54 @@ class ServerSyncService {
 
   /// 开启同步：智能合并本地与服务端数据
   Future<bool> syncWithServer() async {
-    if (!isConfigured || _isSyncing) return false;
+    if (!isConfigured || _isSyncing) {
+      debugPrint('[Sync] 跳过: configured=$isConfigured syncing=$_isSyncing');
+      return false;
+    }
     _isSyncing = true;
     try {
+      debugPrint('[Sync] ========== 开始同步 ==========');
       final server = ServerDataService.instance;
 
       // 读取本地数据
       final localMovies = await MovieDao().getAllMovies();
       final localBooks = await BookDao().getAllBooks();
       final localNotes = await NoteDao().getAllNotes();
+      final db = await DatabaseHelper.instance.database;
+      final localMovieReviews = await db.query('movie_reviews');
+      final localMoviePosters = await db.query('movie_posters');
+      final localBookReviews = await db.query('book_reviews');
+      final localBookExcerpts = await db.query('book_excerpts');
+
+      debugPrint('[Sync] 本地: 影视${localMovies.length} 书籍${localBooks.length} 笔记${localNotes.length} '
+          '影评${localMovieReviews.length} 海报${localMoviePosters.length} '
+          '书评${localBookReviews.length} 书摘${localBookExcerpts.length}');
 
       // 读取服务端数据
       final remoteMovies = await server.getMovies();
       final remoteBooks = await server.getBooks();
       final remoteNotes = await server.getNotes();
 
+      debugPrint('[Sync] 服务端: 影视${remoteMovies.length} 书籍${remoteBooks.length} 笔记${remoteNotes.length}');
+
       // 需要 push 到服务端的数据
       final pushMovies = <Movie>[];
       final pushBooks = <Book>[];
       final pushNotes = <Note>[];
-      final imagePaths = <String>[];
+      final pushMovieReviews = <Map<String, dynamic>>[];
+      final pushMoviePosters = <Map<String, dynamic>>[];
+      final pushBookReviews = <Map<String, dynamic>>[];
+      final pushBookExcerpts = <Map<String, dynamic>>[];
 
       // 服务端无数据 → 全量 push
       if (remoteMovies.isEmpty && remoteBooks.isEmpty && remoteNotes.isEmpty) {
         pushMovies.addAll(localMovies);
         pushBooks.addAll(localBooks);
         pushNotes.addAll(localNotes);
+        pushMovieReviews.addAll(localMovieReviews);
+        pushMoviePosters.addAll(localMoviePosters);
+        pushBookReviews.addAll(localBookReviews);
+        pushBookExcerpts.addAll(localBookExcerpts);
       } else {
         // 按 updated_at 合并
         final remoteMovieMap = {for (final m in remoteMovies) m.id: m};
@@ -119,36 +141,73 @@ class ServerSyncService {
         for (final r in remoteNoteMap.values) {
           await _upsertLocalNote(n: r);
         }
+
+        // 子表合并：movie_reviews / movie_posters / book_reviews / book_excerpts
+        await _mergeSubTable(db, server, 'movie_reviews', localMovieReviews, pushMovieReviews);
+        await _mergeSubTable(db, server, 'movie_posters', localMoviePosters, pushMoviePosters);
+        await _mergeSubTable(db, server, 'book_reviews', localBookReviews, pushBookReviews);
+        await _mergeSubTable(db, server, 'book_excerpts', localBookExcerpts, pushBookExcerpts);
       }
 
-      // 批量 push 到服务端
-      if (pushMovies.isNotEmpty || pushBooks.isNotEmpty || pushNotes.isNotEmpty) {
-        final db = await DatabaseHelper.instance.database;
+      // 收集所有本地图片路径
+      final allImagePaths = _collectAllLocalImages(
+        localMovies, localBooks, localNotes, localMoviePosters);
+      debugPrint('[Sync] 全部图片: ${allImagePaths.length} 张');
+
+      // 先下载本地缺失的图片
+      final missingImages = <String>[];
+      final existingImages = <String>[];
+      for (final p in allImagePaths) {
+        if (await File(p).exists()) {
+          existingImages.add(p);
+        } else {
+          missingImages.add(p);
+        }
+      }
+      debugPrint('[Sync] 缺失${missingImages.length}张 现有${existingImages.length}张');
+
+      if (missingImages.isNotEmpty) {
+        debugPrint('[Sync] 下载缺失图片...');
+        final appDir = (await getApplicationDocumentsDirectory()).path;
+        for (final path in missingImages) {
+          try {
+            final relPath = p.relative(path, from: appDir).replaceAll('\\', '/');
+            final url = '${_prefs.syncServerUrl}/api/data/image/${_prefs.syncActivationCode}/$relPath';
+            final resp = await http.get(Uri.parse(url)).timeout(const Duration(seconds: 15));
+            if (resp.statusCode == 200) {
+              final dest = File(path);
+              await dest.parent.create(recursive: true);
+              await dest.writeAsBytes(resp.bodyBytes);
+            }
+          } catch (_) {}
+        }
+        debugPrint('[Sync] 缺失图片下载完成');
+      }
+
+      // 上传本地已有图片
+      if (existingImages.isNotEmpty) {
+        debugPrint('[Sync] 上传 ${existingImages.length} 张现有图片...');
+        await ServerDataService.uploadLocalImages(existingImages);
+      }
+
+      // 批量 push 数据到服务端
+      final hasPush = pushMovies.isNotEmpty || pushBooks.isNotEmpty || pushNotes.isNotEmpty ||
+          pushMovieReviews.isNotEmpty || pushMoviePosters.isNotEmpty ||
+          pushBookReviews.isNotEmpty || pushBookExcerpts.isNotEmpty;
+      debugPrint('[Sync] hasPush=$hasPush');
+      if (hasPush) {
         final localTags = await db.query('tags');
         final result = await server.batchSync(
           movies: pushMovies.isEmpty ? null : pushMovies,
           books: pushBooks.isEmpty ? null : pushBooks,
           notes: pushNotes.isEmpty ? null : pushNotes,
           tags: localTags.isEmpty ? null : localTags.cast<Map<String, dynamic>>(),
+          movieReviews: pushMovieReviews.isEmpty ? null : pushMovieReviews,
+          moviePosters: pushMoviePosters.isEmpty ? null : pushMoviePosters,
+          bookReviews: pushBookReviews.isEmpty ? null : pushBookReviews,
+          bookExcerpts: pushBookExcerpts.isEmpty ? null : pushBookExcerpts,
         );
-        debugPrint('[Sync] 批量推送: $result');
-
-        // 收集需要上传的图片
-        for (final m in pushMovies) {
-          if (m.posterPath != null && m.posterPath!.isNotEmpty) imagePaths.add(m.posterPath!);
-        }
-        for (final b in pushBooks) {
-          if (b.coverPath != null && b.coverPath!.isNotEmpty) imagePaths.add(b.coverPath!);
-        }
-        for (final n in pushNotes) {
-          imagePaths.addAll(n.images.where((i) => i.isNotEmpty));
-        }
-      }
-
-      // 上传图片
-      if (imagePaths.isNotEmpty) {
-        debugPrint('[Sync] 上传 ${imagePaths.length} 张图片');
-        await ServerDataService.uploadLocalImages(imagePaths);
+        debugPrint('[Sync] batchSync 结果: $result');
       }
 
       debugPrint('[Sync] 合并完成');
@@ -178,30 +237,169 @@ class ServerSyncService {
     await db.insert('notes', n.toJson(), conflictAlgorithm: ConflictAlgorithm.replace);
   }
 
-  /// 关闭同步：从服务器下载数据到本地
-  Future<bool> downloadToLocal() async {
+  /// 收集所有实际存在的本地图片路径
+  List<String> _collectAllLocalImages(List<Movie> movies, List<Book> books,
+      List<Note> notes, List<Map<String, dynamic>> posters) {
+    final paths = <String>[];
+    for (final m in movies) {
+      if (m.posterPath != null && m.posterPath!.isNotEmpty) paths.add(m.posterPath!);
+    }
+    for (final b in books) {
+      if (b.coverPath != null && b.coverPath!.isNotEmpty) paths.add(b.coverPath!);
+    }
+    for (final n in notes) {
+      paths.addAll(n.images.where((i) => i.isNotEmpty));
+    }
+    for (final p in posters) {
+      final pp = p['poster_path'] as String?;
+      if (pp != null && pp.isNotEmpty) paths.add(pp);
+    }
+    return paths;
+  }
+
+  /// 合并子表（reviews/posters/excerpts）：本地优先 push，服务端补充
+  Future<void> _mergeSubTable(Database db, ServerDataService server, String table,
+      List<Map<String, dynamic>> local, List<Map<String, dynamic>> pushList) async {
+    // 尝试获取服务端数据
+    List<Map<String, dynamic>> remote = [];
+    bool serverOk = false;
+    try {
+      switch (table) {
+        case 'movie_reviews':
+          remote = (await server.getAllMovieReviews()).map((r) => r.toJson()).toList();
+        case 'movie_posters':
+          remote = (await server.getAllMoviePosters()).map((p) => p.toJson()).toList();
+        case 'book_reviews':
+          remote = (await server.getAllBookReviews()).map((r) => r.toJson()).toList();
+        case 'book_excerpts':
+          remote = (await server.getAllBookExcerpts()).map((e) => e.toJson()).toList();
+      }
+      serverOk = true;
+    } catch (_) {}
+
+    if (!serverOk) {
+      // 服务端不可用 → 全量 push 本地数据
+      pushList.addAll(local);
+      return;
+    }
+
+    final remoteMap = {for (final r in remote) r['id'] as String: r};
+    for (final l in local) {
+      final r = remoteMap.remove(l['id'] as String);
+      if (r == null) {
+        pushList.add(l);
+      } else {
+        final lTime = l['updated_at'] as String? ?? '';
+        final rTime = r['updated_at'] as String? ?? '';
+        if (lTime.compareTo(rTime) > 0) pushList.add(l);
+      }
+    }
+    // 服务端有、本地无 → 写入本地
+    for (final r in remoteMap.values) {
+      await db.insert(table, r, conflictAlgorithm: ConflictAlgorithm.replace);
+    }
+  }
+
+  /// 关闭同步：上传完整备份到服务器后切回本地
+  Future<bool> uploadBackupAndDisconnect() async {
     if (!isConfigured || _isSyncing) return false;
     _isSyncing = true;
     try {
+      debugPrint('[Sync] ========== 关闭同步：上传备份 ==========');
+      final url = _prefs.syncServerUrl;
+      final code = _prefs.syncActivationCode;
+      final deviceId = _prefs.deviceId;
+      final appDir = (await getApplicationDocumentsDirectory()).path;
+
+      // 上传数据库
+      final dbPath = await DatabaseHelper.instance.databasePath;
+      final request = http.MultipartRequest('POST', Uri.parse('$url/api/sync/upload'));
+      request.fields['code'] = code;
+      request.fields['device_id'] = deviceId;
+      if (dbPath != null && File(dbPath).existsSync()) {
+        request.files.add(await http.MultipartFile(
+          'database', File(dbPath).readAsBytes().asStream(), await File(dbPath).length(),
+          filename: 'mooknote.db',
+        ));
+        debugPrint('[Sync] 上传数据库: ${await File(dbPath).length()} bytes');
+      }
+
+      // 收集并上传所有图片
+      final imagePaths = _collectAllImageFiles(appDir);
+      debugPrint('[Sync] 上传 ${imagePaths.length} 张图片...');
+      for (final path in imagePaths) {
+        final relPath = p.relative(path, from: appDir).replaceAll('\\', '/');
+        if (await File(path).exists()) {
+          request.files.add(await http.MultipartFile(
+            'images', File(path).readAsBytes().asStream(), await File(path).length(),
+            filename: relPath,
+          ));
+        }
+      }
+
+      final resp = await request.send().timeout(const Duration(seconds: 300));
+      final body = await resp.stream.bytesToString();
+      debugPrint('[Sync] 上传备份响应: ${resp.statusCode} $body');
+
+      if (resp.statusCode == 200) {
+        debugPrint('[Sync] 备份上传成功，关闭同步');
+      }
+      return resp.statusCode == 200;
+    } catch (e) {
+      debugPrint('[Sync] 上传备份异常: $e');
+      return false;
+    } finally {
+      _isSyncing = false;
+    }
+  }
+
+  /// 收集所有图片文件（递归扫描 images 目录）
+  List<String> _collectAllImageFiles(String appDir) {
+    final paths = <String>[];
+    final imagesDir = Directory(p.join(appDir, 'images'));
+    if (!imagesDir.existsSync()) return paths;
+    for (final entity in imagesDir.listSync(recursive: true)) {
+      if (entity is File) {
+        paths.add(entity.path);
+      }
+    }
+    return paths;
+  }
+  Future<bool> downloadToLocal() async {
+    if (!isConfigured || _isSyncing) {
+      debugPrint('[Sync] downloadToLocal 跳过: configured=$isConfigured syncing=$_isSyncing');
+      return false;
+    }
+    _isSyncing = true;
+    try {
+      debugPrint('[Sync] ========== 关闭同步：从服务器下载 ==========');
       final url = _prefs.syncServerUrl;
       final code = _prefs.syncActivationCode;
       final deviceId = _prefs.deviceId;
 
+      debugPrint('[Sync] 查询备份信息...');
       final infoResp = await http.post(
         Uri.parse('$url/api/sync/info'),
         headers: {'Content-Type': 'application/json'},
         body: '{"code":"$code","device_id":"$deviceId"}',
       ).timeout(const Duration(seconds: 15));
+      debugPrint('[Sync] /api/sync/info 响应: ${infoResp.statusCode}');
       if (infoResp.statusCode != 200) return false;
 
       final info = _jsonDecode(infoResp.body);
-      if (info == null || info['has_backup'] != true) return false;
+      debugPrint('[Sync] info: $info');
+      if (info == null || info['has_backup'] != true) {
+        debugPrint('[Sync] 服务器无备份，跳过下载');
+        return false;
+      }
 
+      debugPrint('[Sync] 下载数据库...');
       final dbResp = await http.post(
         Uri.parse('$url/api/sync/download/database'),
         headers: {'Content-Type': 'application/json'},
         body: '{"code":"$code"}',
       ).timeout(const Duration(seconds: 120));
+      debugPrint('[Sync] 数据库下载响应: ${dbResp.statusCode} size=${dbResp.bodyBytes.length}');
       if (dbResp.statusCode != 200) return false;
 
       final dbPath = await DatabaseHelper.instance.databasePath;
@@ -209,16 +407,19 @@ class ServerSyncService {
         await DatabaseHelper.instance.close();
         await File(dbPath).writeAsBytes(dbResp.bodyBytes);
         await DatabaseHelper.instance.reopen();
+        debugPrint('[Sync] 数据库已写入: $dbPath');
       }
 
       final images = (info['images'] as List<dynamic>?)
           ?.map((e) => e is Map ? {'name': e['name'] as String, 'rel_path': e['rel_path'] as String} : null)
           .where((e) => e != null).cast<Map<String, String>>().toList() ?? [];
 
+      debugPrint('[Sync] 下载 ${images.length} 张图片...');
       final appDir = await getApplicationDocumentsDirectory();
+      int downloaded = 0;
       for (final img in images) {
         try {
-          final relPath = img['rel_path']!;
+          final relPath = img['rel_path']!.replaceAll('\\', '/');
           final imgResp = await http.get(
             Uri.parse('$url/api/sync/download/image/$code/$relPath'),
           ).timeout(const Duration(seconds: 30));
@@ -226,9 +427,11 @@ class ServerSyncService {
             final dest = File(p.join(appDir.path, relPath));
             await dest.parent.create(recursive: true);
             await dest.writeAsBytes(imgResp.bodyBytes);
+            downloaded++;
           }
         } catch (_) {}
       }
+      debugPrint('[Sync] 下载完成: 数据库 + $downloaded/${images.length} 张图片');
 
       debugPrint('[Sync] 下载到本地完成');
       return true;
diff --git a/lib/widgets/note_list_item.dart b/lib/widgets/note_list_item.dart
index 6e2677b..13ecffc 100644
--- a/lib/widgets/note_list_item.dart
+++ b/lib/widgets/note_list_item.dart
@@ -50,7 +50,7 @@ class _NoteListItemContent extends StatelessWidget {
             Row(
               children: [
                 Text(
-                  _formatDateCached(note.updatedAt),
+                  _formatDate(note.createdAt),
                   style: TextStyle(
                     fontSize: 11,
                     color: colors.onSurface.withValues(alpha: 0.4),
@@ -256,24 +256,14 @@ class _NoteListItemContent extends StatelessWidget {
   }
 }
 
-final Map<DateTime, String> _dateFormatCache = {};
-
-String _formatDateCached(DateTime date) {
-  final cacheKey = DateTime(date.year, date.month, date.day);
-
-  if (_dateFormatCache.containsKey(cacheKey)) {
-    return _dateFormatCache[cacheKey]!;
-  }
-
-  final result = _formatDate(date);
-  _dateFormatCache[cacheKey] = result;
-  return result;
-}
-
 String _formatDate(DateTime date) {
   final now = DateTime.now();
   final difference = now.difference(date);
 
+  if (difference.isNegative) {
+    // 服务端时间比本地快（时钟偏差），显示绝对日期
+    return '${date.year}-${date.month.toString().padLeft(2, '0')}-${date.day.toString().padLeft(2, '0')}';
+  }
   if (difference.inDays == 0) {
     if (difference.inHours == 0) {
       if (difference.inMinutes == 0) {