优化备份逻辑，连同头像一起备份

lib/pages/book/book_tab_page.dart

@@ -65,29 +65,36 @@ class BookTabPage extends StatelessWidget {
 
   /// 构建空状态提示
   Widget _buildEmptyState(BuildContext context, int statusIndex) {
-    final statusText = ['读完', '在读', '准备读'][statusIndex];
+    final statusText = ['已读', '在读', '想读'][statusIndex];
     
     return Center(
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          Icon(
+          Container(
-            Icons.menu_book_outlined,
+            width: 80,
-            size: 80,
+            height: 80,
-            color: Theme.of(context).colorScheme.onSurfaceVariant.withValues(alpha: 0.3),
+            decoration: BoxDecoration(
-          ),
+              color: const Color(0xFFF5F5F5),
-          const SizedBox(height: 16),
+              borderRadius: BorderRadius.circular(20),
-          Text(
+            ),
-            '暂无$statusText的书籍',
+            child: const Icon(
-            style: Theme.of(context).textTheme.titleMedium?.copyWith(
+              Icons.menu_book_outlined,
-              color: Theme.of(context).colorScheme.onSurfaceVariant,
+              size: 40,
+              color: Color(0xFFCCCCCC),
             ),
           ),
-          const SizedBox(height: 8),
+          const SizedBox(height: 20),
-          ElevatedButton.icon(
+          Text(
-            icon: const Icon(Icons.add),
+            '暂无$statusText的书籍',
-            label: const Text('添加记录'),
+            style: const TextStyle(
-            onPressed: () {
+              fontSize: 16,
+              color: Color(0xFF999999),
+            ),
+          ),
+          const SizedBox(height: 24),
+          InkWell(
+            onTap: () {
               final statusMap = {
                 0: 'read',
                 1: 'reading',
@@ -100,6 +107,21 @@ class BookTabPage extends StatelessWidget {
                 arguments: {'initialStatus': currentStatus},
               );
             },
+            child: Container(
+              padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
+              decoration: BoxDecoration(
+                color: const Color(0xFF1A1A1A),
+                borderRadius: BorderRadius.circular(8),
+              ),
+              child: const Text(
+                '添加记录',
+                style: TextStyle(
+                  fontSize: 14,
+                  fontWeight: FontWeight.w500,
+                  color: Colors.white,
+                ),
+              ),
+            ),
           ),
         ],
       ),

lib/pages/movies/movie_tab_page.dart

@@ -71,22 +71,30 @@ class MovieTabPage extends StatelessWidget {
       child: Column(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          const Icon(
+          Container(
-            Icons.movie_outlined,
+            width: 80,
-            size: 48,
+            height: 80,
-            color: Color(0xFFCCCCCC),
+            decoration: BoxDecoration(
+              color: const Color(0xFFF5F5F5),
+              borderRadius: BorderRadius.circular(20),
+            ),
+            child: const Icon(
+              Icons.movie_outlined,
+              size: 40,
+              color: Color(0xFFCCCCCC),
+            ),
           ),
-          const SizedBox(height: 16),
+          const SizedBox(height: 20),
           Text(
             '暂无$statusText的影片',
             style: const TextStyle(
-              fontSize: 15,
+              fontSize: 16,
               color: Color(0xFF999999),
             ),
           ),
           const SizedBox(height: 24),
-          TextButton(
+          InkWell(
-            onPressed: () {
+            onTap: () {
               final statusMap = {
                 0: 'watched',
                 1: 'watching',
@@ -99,7 +107,21 @@ class MovieTabPage extends StatelessWidget {
                 arguments: {'initialStatus': currentStatus},
               );
             },
-            child: const Text('添加记录'),
+            child: Container(
+              padding: const EdgeInsets.symmetric(horizontal: 24, vertical: 12),
+              decoration: BoxDecoration(
+                color: const Color(0xFF1A1A1A),
+                borderRadius: BorderRadius.circular(8),
+              ),
+              child: const Text(
+                '添加记录',
+                style: TextStyle(
+                  fontSize: 14,
+                  fontWeight: FontWeight.w500,
+                  color: Colors.white,
+                ),
+              ),
+            ),
           ),
         ],
       ),

lib/pages/note/note_tab_page.dart

@@ -213,14 +213,6 @@ class _NoteTabPageState extends State<NoteTabPage> {
               color: Color(0xFF999999),
             ),
           ),
-          const SizedBox(height: 8),
-          const Text(
-            '记录你的想法和灵感',
-            style: TextStyle(
-              fontSize: 13,
-              color: Color(0xFFBBBBBB),
-            ),
-          ),
           const SizedBox(height: 24),
           InkWell(
             onTap: () {
@@ -233,7 +225,7 @@ class _NoteTabPageState extends State<NoteTabPage> {
                 borderRadius: BorderRadius.circular(8),
               ),
               child: const Text(
-                '添加笔记',
+                '添加记录',
                 style: TextStyle(
                   fontSize: 14,
                   fontWeight: FontWeight.w500,

lib/pages/profile_page.dart

@@ -438,7 +438,10 @@ class _ProfilePageState extends State<ProfilePage> {
               Navigator.push(
                 context,
                 MaterialPageRoute(builder: (context) => const BackupPage()),
-              );
+              ).then((_) {
+                // 返回时刷新用户数据
+                _loadUserData();
+              });
             },
           ),
           const Divider(height: 1, indent: 72, endIndent: 16, color: Color(0xFFE8E8E8)),

lib/pages/sync/backup_page.dart

@@ -477,7 +477,7 @@ class _BackupPageState extends State<BackupPage> {
                     ),
                     SizedBox(height: 4),
                     Text(
-                      '每2分钟自动备份，保留最近10个备份',
+                      '每2分钟自动备份，保留最近5个备份',
                       style: TextStyle(
                         fontSize: 13,
                         color: Color(0xFF666666),

lib/utils/sync/auto_backup_service.dart

@@ -16,8 +16,8 @@ class AutoBackupService {
   
   static const String _prefsKey = 'auto_backup_enabled';
   static const String _backupDirName = 'mooknote';
-  static const int _maxBackups = 10;
+  static const int _maxBackups = 5;
-  static const Duration _backupInterval = Duration(minutes: 2);
+  static const Duration _backupInterval = Duration(minutes: 5);
   
   /// 是否正在运行
   bool get isRunning => _isRunning;

lib/utils/sync/backup_service.dart

@@ -8,6 +8,7 @@ import 'package:path_provider/path_provider.dart';
 import 'package:path/path.dart' as path;
 import 'package:share_plus/share_plus.dart';
 import '../database_helper.dart';
+import '../user_prefs.dart';
 
 /// 数据备份服务 - 支持导出和导入数据（包含图片）
 class BackupService {
@@ -71,12 +72,27 @@ class BackupService {
         }
       }
       
+      // 获取用户个人信息
+      final userPrefs = UserPrefs();
+      final userInfo = {
+        'nickname': userPrefs.nickname,
+        'motto': userPrefs.motto,
+        'avatarPath': userPrefs.avatarPath,
+      };
+      
+      // 如果有头像，添加到图片路径
+      final avatarPath = userPrefs.avatarPath;
+      if (avatarPath != null && avatarPath.isNotEmpty) {
+        imagePaths.add(avatarPath);
+      }
+      
       // 构建备份数据
       final backupData = {
         'version': 2,
         'exportTime': DateTime.now().toIso8601String(),
         'appName': 'MookNote',
         'hasImages': true,
+        'userInfo': userInfo,
         'data': {
           'movies': movies,
           'books': books,
@@ -238,12 +254,27 @@ class BackupService {
         }
       }
       
+      // 获取用户个人信息
+      final userPrefs = UserPrefs();
+      final userInfo = {
+        'nickname': userPrefs.nickname,
+        'motto': userPrefs.motto,
+        'avatarPath': userPrefs.avatarPath,
+      };
+      
+      // 如果有头像，添加到图片路径
+      final avatarPath = userPrefs.avatarPath;
+      if (avatarPath != null && avatarPath.isNotEmpty) {
+        imagePaths.add(avatarPath);
+      }
+      
       // 构建备份数据
       final backupData = {
         'version': 2,
         'exportTime': DateTime.now().toIso8601String(),
         'appName': 'MookNote',
         'hasImages': true,
+        'userInfo': userInfo,
         'data': {
           'movies': movies,
           'books': books,
@@ -443,6 +474,29 @@ class BackupService {
         }
       });
       
+      // 恢复用户个人信息
+      if (backupData.containsKey('userInfo')) {
+        final userInfo = backupData['userInfo'] as Map<String, dynamic>;
+        final userPrefs = UserPrefs();
+        
+        if (userInfo.containsKey('nickname')) {
+          await userPrefs.setNickname(userInfo['nickname'] as String);
+        }
+        if (userInfo.containsKey('motto')) {
+          await userPrefs.setMotto(userInfo['motto'] as String);
+        }
+        if (userInfo.containsKey('avatarPath')) {
+          final avatarPath = userInfo['avatarPath'] as String?;
+          if (avatarPath != null && avatarPath.isNotEmpty) {
+            // 更新头像路径为新的路径
+            final fileName = path.basename(avatarPath);
+            if (imagePathMap.containsKey(fileName)) {
+              await userPrefs.setAvatarPath(imagePathMap[fileName]!);
+            }
+          }
+        }
+      }
+      
       // 统计导入数量
       final stats = <String, int>{};
       if (data.containsKey('movies')) {

lib/widgets/book_list_item.dart

@@ -133,23 +133,50 @@ class BookListItem extends StatelessWidget {
       builder: (context) => AlertDialog(
         backgroundColor: Colors.white,
         elevation: 0,
-        shape: const RoundedRectangleBorder(borderRadius: BorderRadius.zero),
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-        title: const Text('确认删除'),
+        title: const Text(
-        content: Text('确定要删除《${book.title}》吗？'),
+          '确认删除',
+          style: TextStyle(
+            fontSize: 18,
+            fontWeight: FontWeight.w600,
+          ),
+        ),
+        content: Text(
+          '确定要删除《${book.title}》吗？删除后可在回收站恢复。',
+          style: const TextStyle(
+            fontSize: 14,
+            color: Color(0xFF666666),
+            height: 1.5,
+          ),
+        ),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('取消', style: TextStyle(color: Color(0xFF666666))),
+            style: TextButton.styleFrom(
+              foregroundColor: const Color(0xFF666666),
+              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+            ),
+            child: const Text('取消'),
           ),
-          TextButton(
+          ElevatedButton(
             onPressed: () async {
               await context.read<AppProvider>().removeBook(book.id);
               Navigator.pop(context);
               ToastUtil.show(context, '已删除');
             },
-            child: const Text('删除', style: TextStyle(color: Colors.red)),
+            style: ElevatedButton.styleFrom(
+              backgroundColor: Colors.red,
+              foregroundColor: Colors.white,
+              elevation: 0,
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(8),
+              ),
+              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+            ),
+            child: const Text('删除'),
           ),
         ],
+        actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
       ),
     );
   }

lib/widgets/movie_list_item.dart

@@ -133,23 +133,50 @@ class MovieListItem extends StatelessWidget {
       builder: (context) => AlertDialog(
         backgroundColor: Colors.white,
         elevation: 0,
-        shape: const RoundedRectangleBorder(borderRadius: BorderRadius.zero),
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
-        title: const Text('确认删除'),
+        title: const Text(
-        content: Text('确定要删除《${movie.title}》吗？'),
+          '确认删除',
+          style: TextStyle(
+            fontSize: 18,
+            fontWeight: FontWeight.w600,
+          ),
+        ),
+        content: Text(
+          '确定要删除《${movie.title}》吗？删除后可在回收站恢复。',
+          style: const TextStyle(
+            fontSize: 14,
+            color: Color(0xFF666666),
+            height: 1.5,
+          ),
+        ),
         actions: [
           TextButton(
             onPressed: () => Navigator.pop(context),
-            child: const Text('取消', style: TextStyle(color: Color(0xFF666666))),
+            style: TextButton.styleFrom(
+              foregroundColor: const Color(0xFF666666),
+              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+            ),
+            child: const Text('取消'),
           ),
-          TextButton(
+          ElevatedButton(
             onPressed: () async {
               await context.read<AppProvider>().removeMovie(movie.id);
               Navigator.pop(context);
               ToastUtil.show(context, '已删除');
             },
-            child: const Text('删除', style: TextStyle(color: Colors.red)),
+            style: ElevatedButton.styleFrom(
+              backgroundColor: Colors.red,
+              foregroundColor: Colors.white,
+              elevation: 0,
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(8),
+              ),
+              padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
+            ),
+            child: const Text('删除'),
           ),
         ],
+        actionsPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
       ),
     );
   }