新增毛玻璃主题

lib/pages/book/book_add_page.dart

@@ -13,6 +13,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/image_path_helper.dart';
 import '../../widgets/genre_selector_page.dart';
+import '../../widgets/app_overlay.dart';
 
 class BookAddPage extends StatefulWidget {
   final VoidCallback? onCancel;
@@ -271,7 +272,7 @@ class _BookAddPageState extends State<BookAddPage> {
 
   void _showCoverOptions() {
     final c = Theme.of(context).colorScheme;
-    showModalBottomSheet(context: context, backgroundColor: c.surface,
+    appModalBottomSheet(context: context, backgroundColor: c.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
       builder: (ctx) => SafeArea(child: Padding(padding: const EdgeInsets.symmetric(vertical: 16),
         child: Column(mainAxisSize: MainAxisSize.min, children: [
@@ -301,7 +302,7 @@ class _BookAddPageState extends State<BookAddPage> {
 
   Future<void> _pickCoverFromUrl() async {
     final ctrl = TextEditingController();
-    final ok = await showDialog<bool>(context: context, builder: (ctx) {
+    final ok = await appDialog<bool>(context: context, builder: (ctx) {
       final c = Theme.of(ctx).colorScheme;
       return AlertDialog(backgroundColor: c.surface, elevation: 0, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
         title: Text('添加网络图片', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: c.onSurface)),

lib/pages/book/book_detail_page.dart

@@ -25,6 +25,7 @@ import '../character/character_list_page.dart';
 import '../../data/epub/reader_dao.dart';
 import '../epub_reader/epub_highlights_page.dart';
 import '../epub_reader/reader_screen.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 书籍详情页 - 极简主义设计
 class BookDetailPage extends StatefulWidget {
@@ -627,7 +628,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
 
   void _showEditCoverOptions() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(context: context, backgroundColor: colors.surface,
+    appModalBottomSheet(context: context, backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
       builder: (ctx) => SafeArea(child: Padding(padding: const EdgeInsets.symmetric(vertical: 16),
         child: Column(mainAxisSize: MainAxisSize.min, children: [
@@ -661,7 +662,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
 
   Future<void> _pickEditCoverFromUrl() async {
     final urlCtrl = TextEditingController();
-    final confirmed = await showDialog<bool>(context: context, builder: (ctx) {
+    final confirmed = await appDialog<bool>(context: context, builder: (ctx) {
       final colors = Theme.of(ctx).colorScheme;
       return AlertDialog(backgroundColor: colors.surface, elevation: 0,
         shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
@@ -1312,7 +1313,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
     const names = ['默认样式', '毛玻璃层叠'];
     const icons = [Icons.article_outlined, Icons.blur_on_outlined];
     const subtitles = ['标准封面顶部布局', '封面背景 + 毛玻璃卡片'];
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -2173,7 +2174,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
 
   void _showDeleteDialog(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/book/book_excerpts_page.dart

@@ -7,6 +7,7 @@ import '../../utils/toast_util.dart';
 import '../../data/epub/reader_dao.dart';
 import '../../widgets/fade_in_local_image.dart';
 import 'book_excerpt_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 书籍摘抄列表页面
 class BookExcerptsPage extends StatefulWidget {
@@ -363,7 +364,7 @@ class _BookExcerptsPageState extends State<BookExcerptsPage> {
 
   Future<bool?> _showDeleteDialog(BookExcerpt excerpt) {
     final colors = Theme.of(context).colorScheme;
-    return showDialog<bool>(
+    return appDialog<bool>(
       context: context,
       builder: (context) {
         return AlertDialog(
@@ -407,7 +408,7 @@ class _BookExcerptsPageState extends State<BookExcerptsPage> {
 
   void _showDeleteAllDialog() {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) {
         return AlertDialog(
@@ -449,7 +450,7 @@ class _BookExcerptsPageState extends State<BookExcerptsPage> {
 
   void _showImportSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: Colors.transparent,
       isScrollControlled: true,
@@ -532,7 +533,7 @@ class _BookExcerptsPageState extends State<BookExcerptsPage> {
   void _showWechatReadImport() {
     final colors = Theme.of(context).colorScheme;
 
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: Colors.transparent,
       isScrollControlled: true,

lib/pages/book/book_form_page.dart

@@ -15,6 +15,7 @@ import '../../utils/image_path_helper.dart';
 import '../../widgets/genre_selector_page.dart';
 import '../../widgets/text_input_panel.dart';
 import '../../widgets/alternate_titles_dialog.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 从多值字段列表中提取去重排序的唯一值（供 compute 使用）
 List<String> _collectUnique(List<List<String>> lists) {
@@ -394,7 +395,7 @@ class _BookFormPageState extends State<BookFormPage> {
 
   Future<void> _pickCover() async {
     final colors = Theme.of(context).colorScheme;
-    await showModalBottomSheet(
+    await appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -447,7 +448,7 @@ class _BookFormPageState extends State<BookFormPage> {
 
   Future<void> _pickCoverFromUrl() async {
     final urlController = TextEditingController();
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final c = Theme.of(ctx).colorScheme;
@@ -567,7 +568,7 @@ class _BookFormPageState extends State<BookFormPage> {
   /// 编辑书名（弹窗）
   Future<void> _editTitle() async {
     final controller = TextEditingController(text: _titleController.text);
-    final result = await showDialog<String>(
+    final result = await appDialog<String>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -615,7 +616,7 @@ class _BookFormPageState extends State<BookFormPage> {
 
   /// 编辑别名（弹窗 + 标签式输入）
   Future<void> _editAlternateTitles() async {
-    final result = await showDialog<List<String>>(
+    final result = await appDialog<List<String>>(
       context: context,
       builder: (ctx) => AlternateTitlesDialog(initial: _alternateTitles),
     );
@@ -643,7 +644,7 @@ class _BookFormPageState extends State<BookFormPage> {
 
   Future<void> _editReadCount() async {
     final controller = TextEditingController(text: _readCount > 0 ? '$_readCount' : '');
-    final result = await showDialog<String>(
+    final result = await appDialog<String>(
       context: context,
       builder: (ctx) => AlertDialog(
         title: const Text('阅读次数'),
@@ -689,7 +690,7 @@ class _BookFormPageState extends State<BookFormPage> {
   Future<bool> _confirmLeave() async {
     if (!_hasContent()) return true;
     final colors = Theme.of(context).colorScheme;
-    final result = await showDialog<bool>(
+    final result = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),

lib/pages/book/book_review_detail_page.dart

@@ -4,6 +4,7 @@ import '../../models/data_models.dart';
 import '../../providers/app_provider.dart';
 import '../../utils/toast_util.dart';
 import 'book_review_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 书评详情页
 class BookReviewDetailPage extends StatefulWidget {
@@ -174,7 +175,7 @@ class _BookReviewDetailPageState extends State<BookReviewDetailPage> {
 
   Future<void> _deleteReview() async {
     final colors = Theme.of(context).colorScheme;
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/book/book_reviews_page.dart

@@ -6,6 +6,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import 'book_review_form_page.dart';
 import 'book_review_detail_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 书籍书评列表页面
 class BookReviewsPage extends StatefulWidget {
@@ -286,7 +287,7 @@ class _BookReviewsPageState extends State<BookReviewsPage> {
   }
 
   void _showDeleteDialog(BookReview review) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;

lib/pages/book/book_tab_page.dart

@@ -14,6 +14,7 @@ import '../../widgets/master_detail_scaffold.dart';
 import '../../widgets/detail_placeholder.dart';
 import 'book_detail_page.dart';
 import 'book_add_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 状态索引 → 状态值
 const _bookStatusMap = {0: 'read', 1: 'reading', 2: 'want_to_read', 3: 'abandoned'};
@@ -412,7 +413,7 @@ class _BookTabViewState extends State<_BookTabView>
 
   void _showDeleteDialog(BuildContext context, Book book) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/character/character_form_page.dart

@@ -11,6 +11,7 @@ import '../../utils/image_path_helper.dart';
 import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
 import '../../widgets/genre_selector_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 角色编辑/添加页面
 ///
@@ -220,7 +221,7 @@ class _CharacterFormPageState extends State<CharacterFormPage> {
 
   void _showImageOptions() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -277,7 +278,7 @@ class _CharacterFormPageState extends State<CharacterFormPage> {
 
   Future<void> _pickImageFromUrl() async {
     String? url;
-    final confirmed = await showDialog<bool>(context: context, builder: (ctx) {
+    final confirmed = await appDialog<bool>(context: context, builder: (ctx) {
       final urlCtrl = TextEditingController();
       final colors = Theme.of(ctx).colorScheme;
       return AlertDialog(
@@ -424,7 +425,7 @@ class _CharacterFormPageState extends State<CharacterFormPage> {
   Future<bool> _confirmLeave() async {
     if (!_hasContent()) return true;
     final colors = Theme.of(context).colorScheme;
-    final result = await showDialog<bool>(
+    final result = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/character/character_list_page.dart

@@ -5,6 +5,7 @@ import '../../providers/app_provider.dart';
 import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
 import 'character_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 影视角色列表页
 class MovieCharactersPage extends StatefulWidget {
@@ -358,7 +359,7 @@ class _CharacterTile extends StatelessWidget {
 
   void _showDeleteDialog(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/epub_reader/control_panel.dart

@@ -3,6 +3,7 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'reader_style_sheet.dart';
+import '../../widgets/app_overlay.dart';
 
 class ControlPanel extends StatefulWidget {
   final bool showControls;
@@ -217,7 +218,7 @@ class _ControlPanelState extends State<ControlPanel> {
 
   void _openStyleSheet() {
     widget.onToggleStyleDrawer();
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       isScrollControlled: true,
       backgroundColor: Colors.transparent,

lib/pages/epub_reader/epub_detail_page.dart

@@ -17,6 +17,7 @@ import 'epub_edit_page.dart';
 import 'epub_highlights_page.dart';
 import 'highlight_detail_sheet.dart';
 import 'reader_screen.dart';
+import '../../widgets/app_overlay.dart';
 
 /// EPUB 书籍详情页
 class EpubDetailPage extends StatefulWidget {
@@ -730,7 +731,7 @@ class _EpubDetailPageState extends State<EpubDetailPage> {
 
   /// 删除摘抄（同步删除蓝色高亮）
   Future<void> _deleteExcerpt(BookExcerpt excerpt, ColorScheme colors) async {
-    final confirmed = showDialog<bool>(
+    final confirmed = appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         title: const Text('删除摘抄', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),
@@ -774,7 +775,7 @@ class _EpubDetailPageState extends State<EpubDetailPage> {
   }
 
   Future<void> _deleteHighlight(int id, ColorScheme colors) async {
-    final confirmed = showDialog<bool>(
+    final confirmed = appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         title: const Text('删除句读', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),
@@ -873,7 +874,7 @@ class _EpubDetailPageState extends State<EpubDetailPage> {
   }
 
   void _showLinkedBookActions(ColorScheme colors, String title) {
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -914,7 +915,7 @@ class _EpubDetailPageState extends State<EpubDetailPage> {
             title: Text('取消关联', style: TextStyle(fontSize: 13, color: colors.error)),
             onTap: () {
               Navigator.pop(ctx);
-              showDialog(
+              appDialog(
                 context: context,
                 builder: (confirmCtx) => AlertDialog(
                   title: const Text('取消关联', style: TextStyle(fontSize: 16, fontWeight: FontWeight.w600)),

lib/pages/epub_reader/epub_highlights_page.dart

@@ -6,6 +6,7 @@ import '../../utils/toast_util.dart';
 import '../../utils/user_prefs.dart';
 import 'highlight_detail_sheet.dart';
 import 'reader_screen.dart';
+import '../../widgets/app_overlay.dart';
 
 /// EPUB 句读（高亮）管理页面 —— 支持瀑布流/列表模式切换
 class EpubHighlightsPage extends StatefulWidget {
@@ -317,7 +318,7 @@ class _EpubHighlightsPageState extends State<EpubHighlightsPage> {
   }
 
   void _showDeleteConfirm(int id, ColorScheme colors) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/epub_reader/epub_library_page.dart

@@ -8,6 +8,7 @@ import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
 import '../../widgets/shimmer_skeleton.dart';
 import 'epub_detail_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// EPUB 书架页面
 class EpubLibraryPage extends StatefulWidget {
@@ -88,7 +89,7 @@ class _EpubLibraryPageState extends State<EpubLibraryPage> {
     }
 
     if (!mounted) return;
-    showDialog(
+    appDialog(
       context: context,
       barrierDismissible: false,
       builder: (_) => const Center(child: CircularProgressIndicator()),
@@ -107,7 +108,7 @@ class _EpubLibraryPageState extends State<EpubLibraryPage> {
 
   Future<void> _deleteBook(Map<String, dynamic> book) async {
     final colors = Theme.of(context).colorScheme;
-    final confirm = await showDialog<bool>(
+    final confirm = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -166,7 +167,7 @@ class _EpubLibraryPageState extends State<EpubLibraryPage> {
       (2, '按阅读进度排序', Icons.auto_stories_outlined),
       (3, '按书名排序', Icons.sort_by_alpha),
     ];
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),

lib/pages/epub_reader/highlight_detail_sheet.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import '../../utils/toast_util.dart';
 import 'highlight_share_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 句读详情弹窗 —— 类似分享卡片的样式
 /// 从 epub_detail_page 和 epub_highlights_page 共用
@@ -19,7 +20,7 @@ void showHighlightDetailSheet(
   final createdAt = highlight['created_at'] as String? ?? '';
   final bookTitle = book['title'] as String? ?? '';
 
-  showModalBottomSheet(
+  appModalBottomSheet(
     context: context,
     backgroundColor: Colors.transparent,
     isScrollControlled: true,
@@ -246,7 +247,7 @@ void showExcerptDetailSheet(
 }) {
   final colors = Theme.of(context).colorScheme;
 
-  showModalBottomSheet(
+  appModalBottomSheet(
     context: context,
     backgroundColor: Colors.transparent,
     isScrollControlled: true,

lib/pages/epub_reader/mixins/link_handling_mixin.dart

@@ -45,7 +45,7 @@ mixin _LinkHandlingMixin on State<ReaderScreen> {
         } else if (linkHandling == ReaderLinkHandling.ask) {
           if (mounted && context.mounted) {
             final shouldOpen =
-                await showDialog<bool>(
+                await appDialog<bool>(
                   context: context,
                   builder: (context) => AlertDialog(
                     title: const Text('打开外部链接'),

lib/pages/epub_reader/reader_screen.dart

@@ -23,6 +23,7 @@ import 'footnote_popup.dart';
 import 'search_sheet.dart';
 import 'epub_selection_toolbar.dart';
 import 'selection_handles.dart';
+import '../../widgets/app_overlay.dart';
 
 part 'mixins/spine_navigation_mixin.dart';
 part 'mixins/page_navigation_mixin.dart';
@@ -439,7 +440,7 @@ class _ReaderScreenState extends State<ReaderScreen>
   }
 
   void _openSearch() {
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       isScrollControlled: true,
       backgroundColor: Colors.transparent,

lib/pages/epub_reader/reader_style_sheet.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import '../../services/epub/epub_theme.dart';
 import 'widgets/integer_stepper.dart';
 import 'widgets/reader_scale_slider.dart';
+import '../../widgets/app_overlay.dart';
 
 /// Simplified reader style configuration bottom sheet.
 ///
@@ -382,7 +383,7 @@ class _ReaderStyleSheetState extends State<ReaderStyleSheet> {
     Color bgColor = Color(_customBgColor);
     Color textColor = Color(_customTextColor);
 
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) {
         return StatefulBuilder(

lib/pages/explore/media_calendar_page.dart

@@ -8,6 +8,7 @@ import '../movies/movie_detail_page.dart';
 import '../movies/movie_form_page.dart';
 import '../book/book_detail_page.dart';
 import '../book/book_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 书影日历 - 按月展示影视/书籍添加记录
 class MediaCalendarPage extends StatefulWidget {
@@ -457,7 +458,7 @@ class _MediaCalendarPageState extends State<MediaCalendarPage> {
 
   void _showAddMenu(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),

lib/pages/game/game_add_page.dart

@@ -13,6 +13,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/image_path_helper.dart';
 import '../../widgets/genre_selector_page.dart';
+import '../../widgets/app_overlay.dart';
 
 class GameAddPage extends StatefulWidget {
   final VoidCallback? onCancel;
@@ -307,7 +308,7 @@ class _GameAddPageState extends State<GameAddPage> {
 
   void _showCoverOptions() {
     final c = Theme.of(context).colorScheme;
-    showModalBottomSheet(context: context, backgroundColor: c.surface,
+    appModalBottomSheet(context: context, backgroundColor: c.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
       builder: (ctx) => SafeArea(child: Padding(padding: const EdgeInsets.symmetric(vertical: 16),
         child: Column(mainAxisSize: MainAxisSize.min, children: [
@@ -337,7 +338,7 @@ class _GameAddPageState extends State<GameAddPage> {
 
   Future<void> _pickCoverFromUrl() async {
     final ctrl = TextEditingController();
-    final ok = await showDialog<bool>(context: context, builder: (ctx) {
+    final ok = await appDialog<bool>(context: context, builder: (ctx) {
       final c = Theme.of(ctx).colorScheme;
       return AlertDialog(backgroundColor: c.surface, elevation: 0, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
         title: Text('添加网络图片', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: c.onSurface)),

lib/pages/game/game_detail_page.dart

@@ -22,6 +22,7 @@ import 'game_reviews_page.dart';
 import 'game_screenshots_page.dart';
 import 'game_share_page.dart';
 import '../character/character_list_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 游戏详情页 - 极简主义设计
 class GameDetailPage extends StatefulWidget {
@@ -835,7 +836,7 @@ class _GameDetailPageState extends State<GameDetailPage> {
 
   void _showEditCoverOptions() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context, backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
       builder: (ctx) => SafeArea(
@@ -875,7 +876,7 @@ class _GameDetailPageState extends State<GameDetailPage> {
 
   Future<void> _pickEditCoverFromUrl() async {
     final urlCtrl = TextEditingController();
-    final confirmed = await showDialog<bool>(context: context, builder: (ctx) {
+    final confirmed = await appDialog<bool>(context: context, builder: (ctx) {
       final colors = Theme.of(ctx).colorScheme;
       return AlertDialog(
         backgroundColor: colors.surface, elevation: 0,
@@ -1872,7 +1873,7 @@ class _GameDetailPageState extends State<GameDetailPage> {
     const names = ['默认样式', '毛玻璃层叠'];
     const icons = [Icons.article_outlined, Icons.blur_on_outlined];
     const subtitles = ['标准封面顶部布局', '封面背景 + 毛玻璃卡片'];
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -1917,7 +1918,7 @@ class _GameDetailPageState extends State<GameDetailPage> {
 
   void _showDeleteDialog(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/game/game_form_page.dart

@@ -14,6 +14,7 @@ import '../../utils/toast_util.dart';
 import '../../utils/image_path_helper.dart';
 import '../../widgets/genre_selector_page.dart';
 import '../../widgets/text_input_panel.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 从多值字段列表中提取去重排序的唯一值（供 compute 使用）
 List<String> _collectUnique(List<List<String>> lists) {
@@ -833,7 +834,7 @@ class _GameFormPageState extends State<GameFormPage> {
   /// 显示封面选择选项
   void _showCoverOptions() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(
@@ -904,7 +905,7 @@ class _GameFormPageState extends State<GameFormPage> {
   /// 从网络链接选择封面
   Future<void> _pickCoverFromUrl() async {
     final urlController = TextEditingController();
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -1001,7 +1002,7 @@ class _GameFormPageState extends State<GameFormPage> {
   /// 编辑游戏名称（弹窗）
   Future<void> _editTitle() async {
     final controller = TextEditingController(text: _titleController.text);
-    final result = await showDialog<String>(
+    final result = await appDialog<String>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -1049,7 +1050,7 @@ class _GameFormPageState extends State<GameFormPage> {
 
   Future<void> _editPlayCount() async {
     final controller = TextEditingController(text: _playCount > 0 ? '$_playCount' : '');
-    final result = await showDialog<String>(
+    final result = await appDialog<String>(
       context: context,
       builder: (ctx) => AlertDialog(
         title: const Text('游玩次数'),
@@ -1076,7 +1077,7 @@ class _GameFormPageState extends State<GameFormPage> {
     final hoursController = TextEditingController(text: _playTimeHoursController.text);
     final minutesController = TextEditingController(text: _playTimeMinutesController.text);
 
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -1185,7 +1186,7 @@ class _GameFormPageState extends State<GameFormPage> {
   Future<bool> _confirmLeave() async {
     if (!_hasContent()) return true;
     final colors = Theme.of(context).colorScheme;
-    final result = await showDialog<bool>(
+    final result = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/game/game_review_detail_page.dart

@@ -5,6 +5,7 @@ import '../../providers/app_provider.dart';
 import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
 import 'game_review_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 游戏评价详情页
 class GameReviewDetailPage extends StatefulWidget {
@@ -41,7 +42,7 @@ class _GameReviewDetailPageState extends State<GameReviewDetailPage> {
 
   Future<void> _deleteReview() async {
     final colors = Theme.of(context).colorScheme;
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/game/game_reviews_page.dart

@@ -6,6 +6,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import 'game_review_form_page.dart';
 import 'game_review_detail_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 游戏评价列表页面
 class GameReviewsPage extends StatefulWidget {
@@ -224,7 +225,7 @@ class _GameReviewsPageState extends State<GameReviewsPage> {
   }
 
   void _showDeleteDialog(GameReview review) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;

lib/pages/game/game_screenshots_page.dart

@@ -12,6 +12,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/image_path_helper.dart';
 import 'screenshot_gallery_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 游戏截图页面
 class GameScreenshotsPage extends StatefulWidget {
@@ -147,7 +148,7 @@ class _GameScreenshotsPageState extends State<GameScreenshotsPage> {
   }
 
   Future<void> _pickScreenshot() async {
-    final result = await showModalBottomSheet<int>(
+    final result = await appModalBottomSheet<int>(
       context: context,
       backgroundColor: Colors.transparent,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -247,7 +248,7 @@ class _GameScreenshotsPageState extends State<GameScreenshotsPage> {
 
   Future<void> _pickFromUrl() async {
     final urlController = TextEditingController();
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;
@@ -332,7 +333,7 @@ class _GameScreenshotsPageState extends State<GameScreenshotsPage> {
   }
 
   void _showDeleteDialog(GameScreenshot screenshot) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;

lib/pages/game/game_share_page.dart

@@ -7,6 +7,7 @@ import 'package:share_plus/share_plus.dart';
 import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
+import '../../widgets/app_overlay.dart';
 
 class GameSharePage extends StatefulWidget {
   final Game game;
@@ -61,7 +62,7 @@ class _GameSharePageState extends State<GameSharePage> {
     final colors = Theme.of(context).colorScheme;
     const icons = [Icons.image_outlined, Icons.sports_esports_outlined];
     const subtitles = ['简约海报风格', '游戏信息卡风格'];
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),

lib/pages/game/game_tab_page.dart

@@ -14,6 +14,7 @@ import '../../widgets/master_detail_scaffold.dart';
 import '../../widgets/detail_placeholder.dart';
 import 'game_detail_page.dart';
 import 'game_add_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 状态索引 → 状态值
 const _gameStatusMap = {0: 'completed', 1: 'playing', 2: 'want_to_play', 3: 'abandoned'};
@@ -519,7 +520,7 @@ class _GameTabViewState extends State<_GameTabView>
 
   void _showDeleteDialog(BuildContext context, Game game) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/home/home_page.dart

@@ -26,6 +26,7 @@ import 'main_content_page.dart';
 import '../online_search/search_page.dart';
 import '../online_search/online_search_page.dart';
 import '../profile/profile_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 主页 - 包含底部导航，可切换主页/我的
 class HomePage extends StatefulWidget {
@@ -451,7 +452,7 @@ class _DesktopIconRail extends StatelessWidget {
   void _showSearchDialog(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
     final dialogHeight = (MediaQuery.of(context).size.height * 0.82).clamp(560.0, 820.0);
-    showDialog(
+    appDialog(
       context: context,
       builder: (dialogCtx) => Dialog(
         backgroundColor: colors.surface,
@@ -473,7 +474,7 @@ class _DesktopIconRail extends StatelessWidget {
     final colors = Theme.of(context).colorScheme;
     final email = 'dellevin99@gmail.com';
     final qqGroup = '1087203310';
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -536,40 +537,40 @@ class _DesktopIconRail extends StatelessWidget {
     );
   }
   void _showBackupDialog(BuildContext context) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (_) => const _BackupChoiceDialog(),
     );
   }
 
   void _showEncounterDialog(BuildContext context) {
-    showDialog(context: context, builder: (_) => const _EncounterDialog());
+    appDialog(context: context, builder: (_) => const _EncounterDialog());
   }
 
   void _showStrollDialog(BuildContext context) {
-    showDialog(context: context, builder: (_) => const _StrollDialog());
+    appDialog(context: context, builder: (_) => const _StrollDialog());
   }
 
   void _showCalendarDialog(BuildContext context) {
-    showDialog(context: context, builder: (_) => const _CalendarDialog());
+    appDialog(context: context, builder: (_) => const _CalendarDialog());
   }
 
   void _showPersonDialog(BuildContext context) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (_) => const _PersonListDialog(),
     );
   }
 
   void _showTagDialog(BuildContext context) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (_) => const _TagManagementDialog(),
     );
   }
 
   void _showRecycleBinDialog(BuildContext context) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (_) => const _RecycleBinDialog(),
     );
@@ -1165,7 +1166,7 @@ class _StrollDialogState extends State<_StrollDialog> {
 
   void _showDeleteConfirm(_StrollItem item) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(context: context, builder: (ctx) => AlertDialog(
+    appDialog(context: context, builder: (ctx) => AlertDialog(
       backgroundColor: colors.surface, elevation: 0,
       shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
       title: Text('确认删除', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: colors.onSurface)),
@@ -2058,7 +2059,7 @@ class _TagManagementDialogState extends State<_TagManagementDialog> {
     final name = tag['name'] as String;
     final isHidden = (tag['is_hidden'] as int?) == 1;
 
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(20))),
@@ -2127,7 +2128,7 @@ class _TagManagementDialogState extends State<_TagManagementDialog> {
     } else {
       for (final n in provider.notes.where((n) => !n.isDeleted && n.tags.contains(tagName))) items.add((title: n.title.isNotEmpty ? n.title : '随手记', subtitle: null, type: '笔记'));
     }
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -2161,7 +2162,7 @@ class _TagManagementDialogState extends State<_TagManagementDialog> {
     final colors = Theme.of(context).colorScheme;
     final controller = TextEditingController();
     final type = _currentType;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
@@ -2208,7 +2209,7 @@ class _TagManagementDialogState extends State<_TagManagementDialog> {
     final tagId = tag['id'] as String;
     final type = tag['type'] as String;
     final oldName = tag['name'] as String;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
@@ -2250,7 +2251,7 @@ class _TagManagementDialogState extends State<_TagManagementDialog> {
     bool showAdvanced = false;
     final otherTags = (_tagCache[type] ?? []).where((t) => t['id'] != tagId).map((t) => t['name'] as String).toList();
 
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => StatefulBuilder(builder: (ctx, setDialogState) {
         final bc = Theme.of(ctx).colorScheme;
@@ -2625,7 +2626,7 @@ class _LocalBackupContentState extends State<_LocalBackupContent> {
   }
 
   Future<void> _importData() async {
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -2820,7 +2821,7 @@ class _WebDAVBackupContentState extends State<_WebDAVBackupContent> {
 
   Future<void> _confirmSync(SyncDirection direction) async {
     final isUpload = direction == SyncDirection.upload;
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -2844,7 +2845,7 @@ class _WebDAVBackupContentState extends State<_WebDAVBackupContent> {
   }
 
   Future<void> _clearConfig() async {
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -3343,7 +3344,7 @@ class _RecycleBinDialogState extends State<_RecycleBinDialog> {
 
   Future<void> _permanentDelete(_BinItem item) async {
     final colors = Theme.of(context).colorScheme;
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,
@@ -3382,7 +3383,7 @@ class _RecycleBinDialogState extends State<_RecycleBinDialog> {
 
   void _showClearAllDialog() {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,
@@ -4007,7 +4008,7 @@ class _DesktopListPanelState extends State<_DesktopListPanel> {
 
   Future<void> _deleteItem(BuildContext context, String type, String id, String title) async {
     final provider = context.read<AppProvider>();
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: Theme.of(ctx).colorScheme.surface,
@@ -4463,7 +4464,7 @@ class _DesktopNoteItem extends StatelessWidget {
           // 进入编辑模式由 NoteDetailPage 处理
           break;
         case 'delete':
-          final confirmed = await showDialog<bool>(
+          final confirmed = await appDialog<bool>(
             context: context,
             builder: (ctx) => AlertDialog(
               backgroundColor: Theme.of(ctx).colorScheme.surface,

lib/pages/home/main_content_page.dart

@@ -10,6 +10,7 @@ import '../note/note_tab_page.dart';
 import '../game/game_tab_page.dart';
 import '../online_search/search_hub_page.dart';
 import '../sync/webdav_sync_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 主内容页 - 观影/阅读/笔记标签页（PageView 滑动切换）
 class MainContentPage extends StatefulWidget {
@@ -149,7 +150,7 @@ class _MainContentPageState extends State<MainContentPage> {
   void _showModulePicker(BuildContext context, List<_TabItem> tabs, int currentIndex) {
     final colors = Theme.of(context).colorScheme;
     final provider = context.read<AppProvider>();
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -211,7 +212,7 @@ class _MainContentPageState extends State<MainContentPage> {
     final colors = Theme.of(context).colorScheme;
     final hasConfig = (await WebDAVService.instance.getConfig()) != null;
     if (!mounted) return;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(20))),
@@ -331,7 +332,7 @@ class _MainContentPageState extends State<MainContentPage> {
 
   void _showSortMenu(BuildContext context, String title, int current, List<(int, String, IconData)> options, ValueChanged<int> onSelected) {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -663,7 +664,7 @@ class _CloudSheetContentState extends State<_CloudSheetContent> {
     // 使用保存的 navigator context，而非 state context（bottom sheet 已 pop）
     final overlayCtx = navigator.context;
     final colors = Theme.of(overlayCtx).colorScheme;
-    showDialog(
+    appDialog(
       context: overlayCtx,
       builder: (dialogCtx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/markdown_reader/md_reader_tab_page.dart

@@ -5,6 +5,7 @@ import 'package:path/path.dart' as p;
 import 'package:permission_handler/permission_handler.dart';
 import '../../utils/user_prefs.dart';
 import 'md_viewer_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// Markdown 阅读器 - 文件浏览器
 class MdReaderTabPage extends StatefulWidget {
@@ -88,7 +89,7 @@ class _MdReaderTabPageState extends State<MdReaderTabPage> {
   }
 
   void _showPermissionDeniedDialog() {
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -276,7 +277,7 @@ class _MdReaderTabPageState extends State<MdReaderTabPage> {
   }
 
   void _showSettingsSheet() {
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: Theme.of(context).colorScheme.surface,
       shape: const RoundedRectangleBorder(

lib/pages/movies/douban_webview_page.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 import 'package:flutter/material.dart';
 import 'package:flutter_inappwebview/flutter_inappwebview.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 豆瓣影视WebView页面 - 用于抓取影视信息
 class DoubanWebViewPage extends StatefulWidget {
@@ -139,7 +140,7 @@ class _DoubanWebViewPageState extends State<DoubanWebViewPage> {
 
     // 显示提取的信息
     if (mounted) {
-      showDialog(
+      appDialog(
         context: context,
         builder: (ctx) {
           final colors = Theme.of(ctx).colorScheme;
@@ -242,7 +243,7 @@ class _DoubanWebViewPageState extends State<DoubanWebViewPage> {
       _isExtracting = true;
 
       // 显示加载提示
-      showDialog(
+      appDialog(
         context: context,
         barrierDismissible: false,
         builder: (dialogContext) => const Center(

lib/pages/movies/movie_add_page.dart

@@ -13,6 +13,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/image_path_helper.dart';
 import '../../widgets/genre_selector_page.dart';
+import '../../widgets/app_overlay.dart';
 
 class MovieAddPage extends StatefulWidget {
   final VoidCallback? onCancel;
@@ -281,7 +282,7 @@ class _MovieAddPageState extends State<MovieAddPage> {
 
   void _showCoverOptions() {
     final c = Theme.of(context).colorScheme;
-    showModalBottomSheet(context: context, backgroundColor: c.surface,
+    appModalBottomSheet(context: context, backgroundColor: c.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
       builder: (ctx) => SafeArea(child: Padding(padding: const EdgeInsets.symmetric(vertical: 16),
         child: Column(mainAxisSize: MainAxisSize.min, children: [
@@ -311,7 +312,7 @@ class _MovieAddPageState extends State<MovieAddPage> {
 
   Future<void> _pickCoverFromUrl() async {
     final ctrl = TextEditingController();
-    final ok = await showDialog<bool>(context: context, builder: (ctx) {
+    final ok = await appDialog<bool>(context: context, builder: (ctx) {
       final c = Theme.of(ctx).colorScheme;
       return AlertDialog(backgroundColor: c.surface, elevation: 0, shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
         title: Text('添加网络图片', style: TextStyle(fontSize: 18, fontWeight: FontWeight.w600, color: c.onSurface)),

lib/pages/movies/movie_detail_page.dart

@@ -22,6 +22,7 @@ import 'movie_reviews_page.dart';
 import 'movie_posters_page.dart';
 import 'movie_share_page.dart';
 import '../character/character_list_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 影视详情页 - 极简主义设计
 class MovieDetailPage extends StatefulWidget {
@@ -786,7 +787,7 @@ class _MovieDetailPageState extends State<MovieDetailPage> {
 
   void _showEditCoverOptions() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context, backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
       builder: (ctx) => SafeArea(
@@ -826,7 +827,7 @@ class _MovieDetailPageState extends State<MovieDetailPage> {
 
   Future<void> _pickEditCoverFromUrl() async {
     final urlCtrl = TextEditingController();
-    final confirmed = await showDialog<bool>(context: context, builder: (ctx) {
+    final confirmed = await appDialog<bool>(context: context, builder: (ctx) {
       final colors = Theme.of(ctx).colorScheme;
       return AlertDialog(
         backgroundColor: colors.surface, elevation: 0,
@@ -1197,7 +1198,7 @@ class _MovieDetailPageState extends State<MovieDetailPage> {
     const names = ['默认样式', '毛玻璃层叠'];
     const icons = [Icons.article_outlined, Icons.blur_on_outlined];
     const subtitles = ['标准封面顶部布局', '封面背景 + 毛玻璃卡片'];
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -2103,7 +2104,7 @@ class _MovieDetailPageState extends State<MovieDetailPage> {
 
   void _showDeleteDialog(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/movies/movie_form_page.dart

@@ -16,6 +16,7 @@ import '../../widgets/genre_selector_page.dart';
 import '../../widgets/text_input_panel.dart';
 import '../../widgets/duration_picker.dart';
 import '../../widgets/alternate_titles_dialog.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 从多值字段列表中提取去重排序的唯一值（供 compute 使用）
 List<String> _collectUnique(List<List<String>> lists) {
@@ -147,7 +148,7 @@ class _MovieFormPageState extends State<MovieFormPage> {
   void _showQuickAddDialog() {
     final textController = TextEditingController();
 
-    showDialog(
+    appDialog(
       context: context,
       builder: (dialogContext) {
         final colors = Theme.of(dialogContext).colorScheme;
@@ -748,7 +749,7 @@ class _MovieFormPageState extends State<MovieFormPage> {
   /// 编辑名称（弹窗）
   Future<void> _editTitle() async {
     final controller = TextEditingController(text: _titleController.text);
-    final result = await showDialog<String>(
+    final result = await appDialog<String>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -796,7 +797,7 @@ class _MovieFormPageState extends State<MovieFormPage> {
 
   /// 编辑别名（弹窗 + 标签式输入）
   Future<void> _editAlternateTitles() async {
-    final result = await showDialog<List<String>>(
+    final result = await appDialog<List<String>>(
       context: context,
       builder: (ctx) => AlternateTitlesDialog(initial: _alternateTitles),
     );
@@ -807,7 +808,7 @@ class _MovieFormPageState extends State<MovieFormPage> {
   /// 编辑观看次数
   Future<void> _editWatchCount() async {
     final controller = TextEditingController(text: _watchCount > 0 ? '$_watchCount' : '');
-    final result = await showDialog<String>(
+    final result = await appDialog<String>(
       context: context,
       builder: (ctx) => AlertDialog(
         title: const Text('观看次数'),
@@ -1118,7 +1119,7 @@ class _MovieFormPageState extends State<MovieFormPage> {
   /// 显示封面选择选项
   void _showCoverOptions() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(
@@ -1292,7 +1293,7 @@ class _MovieFormPageState extends State<MovieFormPage> {
   Future<void> _pickCoverFromUrl() async {
     final urlController = TextEditingController();
 
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -1400,7 +1401,7 @@ class _MovieFormPageState extends State<MovieFormPage> {
   Future<bool> _confirmLeave() async {
     if (!_hasContent()) return true;
     final colors = Theme.of(context).colorScheme;
-    final result = await showDialog<bool>(
+    final result = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/movies/movie_posters_page.dart

@@ -12,6 +12,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/image_path_helper.dart';
 import 'poster_gallery_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 影视海报墙页面
 class MoviePostersPage extends StatefulWidget {
@@ -184,7 +185,7 @@ class _MoviePostersPageState extends State<MoviePostersPage> {
 
   Future<void> _pickPoster() async {
     // 显示选择对话框
-    final result = await showModalBottomSheet<int>(
+    final result = await appModalBottomSheet<int>(
       context: context,
       backgroundColor: Colors.transparent,
       shape: const RoundedRectangleBorder(
@@ -311,7 +312,7 @@ class _MoviePostersPageState extends State<MoviePostersPage> {
   Future<void> _pickFromUrl() async {
     final urlController = TextEditingController();
 
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;
@@ -504,7 +505,7 @@ class _MoviePostersPageState extends State<MoviePostersPage> {
   }
 
   void _showDeleteDialog(MoviePoster poster) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;

lib/pages/movies/movie_review_detail_page.dart

@@ -5,6 +5,7 @@ import '../../providers/app_provider.dart';
 import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
 import 'movie_review_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 影评详情页
 class MovieReviewDetailPage extends StatefulWidget {
@@ -45,7 +46,7 @@ class _MovieReviewDetailPageState extends State<MovieReviewDetailPage> {
 
   Future<void> _deleteReview() async {
     final colors = Theme.of(context).colorScheme;
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/movies/movie_reviews_page.dart

@@ -6,6 +6,7 @@ import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import 'movie_review_form_page.dart';
 import 'movie_review_detail_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 影视影评列表页面
 class MovieReviewsPage extends StatefulWidget {
@@ -286,7 +287,7 @@ class _MovieReviewsPageState extends State<MovieReviewsPage> {
   }
 
   void _showDeleteDialog(MovieReview review) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;

lib/pages/movies/movie_share_page.dart

@@ -7,6 +7,7 @@ import 'package:share_plus/share_plus.dart';
 import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
+import '../../widgets/app_overlay.dart';
 
 class MovieSharePage extends StatefulWidget {
   final Movie movie;
@@ -128,7 +129,7 @@ class _MovieSharePageState extends State<MovieSharePage> {
     final colors = Theme.of(context).colorScheme;
     const icons = [Icons.image_outlined, Icons.confirmation_num_outlined, Icons.local_movies_outlined, Icons.card_giftcard_outlined];
     const subtitles = ['简约海报风格', '经典复古票根', '电影票票根样式', '高端收藏版票根'];
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -185,7 +186,7 @@ class _MovieSharePageState extends State<MovieSharePage> {
 
   void _showEditSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       isScrollControlled: true,
       backgroundColor: colors.surface,

lib/pages/movies/movie_tab_page.dart

@@ -15,6 +15,7 @@ import '../../widgets/master_detail_scaffold.dart';
 import '../../widgets/detail_placeholder.dart';
 import 'movie_detail_page.dart';
 import 'movie_add_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 状态索引 → 状态值
 const _statusMap = {0: 'watched', 1: 'watching', 2: 'want_to_watch'};
@@ -530,7 +531,7 @@ class _MovieTabViewState extends State<_MovieTabView>
 
   void _showDeleteDialog(BuildContext context, Movie movie) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/note/note_detail_page.dart

@@ -15,6 +15,7 @@ import '../../utils/responsive.dart';
 import '../../widgets/vditor_editor.dart';
 import '../../widgets/tag_side_panel.dart';
 import 'note_share_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 笔记详情页
 class NoteDetailPage extends StatefulWidget {
@@ -804,7 +805,7 @@ class _NoteDetailPageState extends State<NoteDetailPage> {
   }
 
   void _showImagePreview(List<String> images, int initialIndex) {
-    showDialog(
+    appDialog(
       context: context,
       barrierDismissible: true,
       builder: (context) => GestureDetector(
@@ -920,7 +921,7 @@ class _NoteDetailPageState extends State<NoteDetailPage> {
 
   void _showDeleteDialog(BuildContext context) {
     final errorColor = Theme.of(context).colorScheme.error;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         title: const Text('删除笔记'),

lib/pages/note/note_form_page.dart

@@ -13,6 +13,7 @@ import '../../utils/image_saver.dart';
 import '../../widgets/fade_in_local_image.dart';
 import '../../widgets/tag_side_panel.dart';
 import '../../widgets/vditor_editor.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 添加/编辑笔记页面 - 极简书写界面
 class NoteFormPage extends StatefulWidget {
@@ -625,7 +626,7 @@ class _NoteFormPageState extends State<NoteFormPage> {
     _autoSaveTimer?.cancel();
     if (!_hasContent()) return true;
 
-    final result = await showDialog<String>(
+    final result = await appDialog<String>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -899,7 +900,7 @@ class _NoteFormPageState extends State<NoteFormPage> {
 
   /// 显示图片预览
   void _showImagePreview(int index) {
-    showDialog(
+    appDialog(
       context: context,
       barrierDismissible: true,
       builder: (context) => GestureDetector(
@@ -926,7 +927,7 @@ class _NoteFormPageState extends State<NoteFormPage> {
 
   /// 显示删除图片确认对话框
   void _showDeleteImageDialog(int index) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) {
         final colors = Theme.of(context).colorScheme;

lib/pages/note/note_tab_page.dart

@@ -11,6 +11,7 @@ import '../../widgets/master_detail_scaffold.dart';
 import '../../widgets/detail_placeholder.dart';
 import 'note_detail_page.dart';
 import 'note_add_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 笔记标签页（分页 + 触底加载）
 class NoteTabPage extends StatefulWidget {
@@ -355,7 +356,7 @@ class _NoteTabPageState extends State<NoteTabPage> {
 
   void _showNoteActions(Note note) {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -398,7 +399,7 @@ class _NoteTabPageState extends State<NoteTabPage> {
 
   void _showDeleteDialog(Note note) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/online_search/book_detail_page.dart

@@ -12,6 +12,7 @@ import '../../models/data_models.dart';
 import '../../providers/app_provider.dart';
 import '../../utils/image_path_helper.dart';
 import '../../utils/toast_util.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 书籍详情页 - 在线版
 class BookDetailPage extends StatefulWidget {
@@ -227,7 +228,7 @@ class _BookDetailPageState extends State<BookDetailPage> {
 
   void _showAddSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(

lib/pages/online_search/movie_detail_page.dart

@@ -15,6 +15,7 @@ import '../../models/data_models.dart';
 import '../../providers/app_provider.dart';
 import '../../utils/image_path_helper.dart';
 import '../../utils/toast_util.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 影视详情页 - 在线版
 class MovieDetailPage extends StatefulWidget {
@@ -318,7 +319,7 @@ class _MovieDetailPageState extends State<MovieDetailPage>
   Future<void> _showRateSheet() async {
     final colors = Theme.of(context).colorScheme;
     final rates = [0.5, 0.75, 1.0, 1.25, 1.5, 2.0];
-    final selected = await showModalBottomSheet<double>(
+    final selected = await appModalBottomSheet<double>(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(
@@ -547,7 +548,7 @@ class _MovieDetailPageState extends State<MovieDetailPage>
 
   void _showAddSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(

lib/pages/online_search/online_search_page.dart

@@ -6,6 +6,7 @@ import '../../utils/user_prefs.dart';
 import '../../utils/toast_util.dart';
 import 'movie_detail_page.dart';
 import 'book_detail_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 在线搜索影视/书籍（带 Scaffold + AppBar）
 class OnlineSearchPage extends StatelessWidget {
@@ -143,7 +144,7 @@ class _OnlineSearchPageBodyState extends State<OnlineSearchPageBody> {
 
   void _showUnlockDialog() {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -499,7 +500,7 @@ class _OnlineSearchPageBodyState extends State<OnlineSearchPageBody> {
   }
 
   void _showTokenExpiredDialog() {
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) {
         final c = Theme.of(ctx).colorScheme;
@@ -982,7 +983,7 @@ class _OnlineSearchPageBodyState extends State<OnlineSearchPageBody> {
             const Spacer(),
             GestureDetector(
               onTap: () {
-                showDialog(
+                appDialog(
                   context: context,
                   builder: (ctx) {
                     final c = Theme.of(ctx).colorScheme;
@@ -1057,7 +1058,7 @@ class _OnlineSearchPageBodyState extends State<OnlineSearchPageBody> {
                       _doSearch();
                     },
                     onLongPress: () {
-                      showDialog(
+                      appDialog(
                         context: context,
                         builder: (ctx) {
                           final c = Theme.of(ctx).colorScheme;

lib/pages/people/person_detail_page.dart

@@ -10,6 +10,7 @@ import '../movies/movie_detail_page.dart';
 import '../book/book_detail_page.dart';
 import '../game/game_detail_page.dart';
 import 'person_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 人物档案详情页
 class PersonDetailPage extends StatefulWidget {
@@ -464,7 +465,7 @@ class _PersonDetailPageState extends State<PersonDetailPage> {
 
   void _showDeleteDialog(Person person) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (context) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/people/person_form_page.dart

@@ -11,6 +11,7 @@ import '../../utils/image_path_helper.dart';
 import '../../utils/toast_util.dart';
 import '../../widgets/fade_in_local_image.dart';
 import '../../widgets/genre_selector_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 人物编辑/添加页面
 class PersonFormPage extends StatefulWidget {
@@ -259,7 +260,7 @@ class _PersonFormPageState extends State<PersonFormPage> {
 
   void _showPhotoOptions() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -311,7 +312,7 @@ class _PersonFormPageState extends State<PersonFormPage> {
 
   Future<void> _pickPhotoFromUrl() async {
     String? url;
-    final confirmed = await showDialog<bool>(context: context, builder: (ctx) {
+    final confirmed = await appDialog<bool>(context: context, builder: (ctx) {
       final urlCtrl = TextEditingController();
       final colors = Theme.of(ctx).colorScheme;
       return AlertDialog(
@@ -503,7 +504,7 @@ class _PersonFormPageState extends State<PersonFormPage> {
   Future<bool> _confirmLeave() async {
     if (!_hasContent()) return true;
     final colors = Theme.of(context).colorScheme;
-    final result = await showDialog<bool>(
+    final result = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface, elevation: 0,

lib/pages/people/person_list_page.dart

@@ -8,6 +8,7 @@ import '../../utils/toast_util.dart';
 import '../../widgets/person_avatar.dart';
 import 'person_detail_page.dart';
 import 'person_form_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 人物列表页
 class PersonListPage extends StatefulWidget {
@@ -526,7 +527,7 @@ class _PersonListPageState extends State<PersonListPage> {
   Future<void> _refreshRelations() async {
     final provider = context.read<AppProvider>();
     // 显示加载弹窗
-    showDialog(
+    appDialog(
       context: context,
       barrierDismissible: false,
       builder: (ctx) => PopScope(

lib/pages/playlist/playlist_list_page.dart

@@ -6,6 +6,7 @@ import '../../utils/user_prefs.dart';
 import '../../widgets/fade_in_local_image.dart';
 import 'playlist_create_page.dart';
 import 'playlist_detail_page.dart';
+import '../../widgets/app_overlay.dart';
 
 class PlaylistListPage extends StatefulWidget {
   const PlaylistListPage({super.key});
@@ -561,7 +562,7 @@ class _PlaylistListPageState extends State<PlaylistListPage> {
 
   void _showActionSheet(BuildContext context, Playlist playlist, AppProvider provider) {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -642,7 +643,7 @@ class _PlaylistListPageState extends State<PlaylistListPage> {
 
   Future<bool?> _showDeleteDialog(BuildContext context, Playlist playlist, AppProvider provider) {
     final colors = Theme.of(context).colorScheme;
-    return showDialog<bool>(
+    return appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/profile/changelog_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/services.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:url_launcher/url_launcher.dart';
 import '../../services/changelog_service.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 更新日志页面
 class ChangelogPage extends StatefulWidget {
@@ -55,7 +56,7 @@ class _ChangelogPageState extends State<ChangelogPage> {
 
   void _showNoUpdateDialog(String localVersion) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -77,7 +78,7 @@ class _ChangelogPageState extends State<ChangelogPage> {
 
   void _showUpdateDialog({required String version, String? localVersion}) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/profile/feature_settings_page.dart

@@ -2,6 +2,7 @@ import 'dart:io';
 import 'package:flutter/material.dart';
 import '../../utils/user_prefs.dart';
 import '../../utils/toast_util.dart';
+import '../../widgets/app_overlay.dart';
 
 class FeatureSettingsPage extends StatefulWidget {
   const FeatureSettingsPage({super.key});
@@ -442,7 +443,7 @@ class _FeatureSettingsPageState extends State<FeatureSettingsPage> {
   void _showDefaultTabPicker() {
     final colors = Theme.of(context).colorScheme;
     final enabled = _enabledTabs;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: Colors.transparent,
       builder: (ctx) => Container(

lib/pages/profile/font_picker_page.dart

@@ -6,6 +6,7 @@ import 'package:permission_handler/permission_handler.dart';
 import '../../services/font_download_manager.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/user_prefs.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 字体选择页面
 ///
@@ -59,7 +60,7 @@ class _FontPickerPageState extends State<FontPickerPage> {
   /// 显示权限提示弹窗
   void _showPermissionDialog() {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/profile/layout_settings_page.dart

@@ -2,6 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../../providers/app_provider.dart';
 import '../../utils/user_prefs.dart';
+import '../../widgets/app_overlay.dart';
 
 class LayoutSettingsPage extends StatefulWidget {
   const LayoutSettingsPage({super.key});
@@ -337,7 +338,7 @@ class _LayoutSettingsPageState extends State<LayoutSettingsPage> {
 
   void _showHomeModuleSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -380,7 +381,7 @@ class _LayoutSettingsPageState extends State<LayoutSettingsPage> {
 
   void _showMovieSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -445,7 +446,7 @@ class _LayoutSettingsPageState extends State<LayoutSettingsPage> {
 
   void _showBookSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -502,7 +503,7 @@ class _LayoutSettingsPageState extends State<LayoutSettingsPage> {
 
   void _showNoteSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -538,7 +539,7 @@ class _LayoutSettingsPageState extends State<LayoutSettingsPage> {
 
   void _showGameSheet() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),

lib/pages/profile/profile_page.dart

@@ -21,6 +21,7 @@ import '../explore/stroll_page.dart';
 import '../sync/cloud_sync_page.dart';
 import 'settings_page.dart';
 import 'watchlist_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 个人中心页面
 class ProfilePage extends StatefulWidget {
@@ -1053,7 +1054,7 @@ class _ProfilePageState extends State<ProfilePage> with RouteAware {
   void _showFeedbackDialog(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
     final email = 'dellevin99@gmail.com';
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(
@@ -1210,7 +1211,7 @@ class _ProfilePageState extends State<ProfilePage> with RouteAware {
 
   Future<void> _pickAvatar() async {
     final colors = Theme.of(context).colorScheme;
-    await showModalBottomSheet(
+    await appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(
@@ -1312,7 +1313,7 @@ class _ProfilePageState extends State<ProfilePage> with RouteAware {
 
   void _showBackupOptions(BuildContext context) {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(
@@ -1414,7 +1415,7 @@ class _ProfilePageState extends State<ProfilePage> with RouteAware {
     }
     options.add(('笔记', Icons.sticky_note_2_outlined, provider.notes.where((n) => !n.isDeleted).length));
 
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(
@@ -1515,7 +1516,7 @@ class _ProfilePageState extends State<ProfilePage> with RouteAware {
 
   void _showExportResult(BuildContext context, bool success, String message) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         icon: Icon(

lib/pages/profile/settings_page.dart

@@ -20,6 +20,7 @@ import 'feature_settings_page.dart';
 import 'layout_settings_page.dart';
 import 'changelog_page.dart';
 import 'font_picker_page.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 设置页面
 class SettingsPage extends StatefulWidget {
@@ -263,7 +264,7 @@ class _SettingsPageState extends State<SettingsPage> {
     final colors = Theme.of(context).colorScheme;
     final nicknameController = TextEditingController(text: _userPrefs.nickname);
     final mottoController = TextEditingController(text: _userPrefs.motto);
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -351,11 +352,12 @@ class _SettingsPageState extends State<SettingsPage> {
     );
   }
 
-  static const _themeModeLabels = ['跟随系统', '浅色模式', '深色模式'];
+  static const _themeModeLabels = ['跟随系统', '浅色模式', '深色模式', '毛玻璃'];
   static const _themeModeIcons = [
     Icons.brightness_auto,
     Icons.light_mode,
-    Icons.dark_mode
+    Icons.dark_mode,
+    Icons.blur_on
   ];
 
   Widget _buildThemeModeSelector() {
@@ -401,7 +403,7 @@ class _SettingsPageState extends State<SettingsPage> {
 
   void _showThemeModePicker() {
     final colors = Theme.of(context).colorScheme;
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: Colors.transparent,
       builder: (ctx) => Container(
@@ -464,6 +466,13 @@ class _SettingsPageState extends State<SettingsPage> {
 
   Future<void> _setThemeMode(int mode) async {
     await _userPrefs.setThemeMode(mode);
+    if (mode == 3) {
+      if (mounted) {
+        context.read<AppProvider>().enableFrosted();
+        setState(() => _themeMode = mode);
+      }
+      return;
+    }
     final themeMode = switch (mode) {
       1 => ThemeMode.light,
       2 => ThemeMode.dark,
@@ -527,7 +536,7 @@ class _SettingsPageState extends State<SettingsPage> {
   void _showColorSchemePicker() {
     final colors = Theme.of(context).colorScheme;
     final provider = context.read<AppProvider>();
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: Colors.transparent,
       builder: (ctx) => Container(
@@ -904,7 +913,7 @@ class _SettingsPageState extends State<SettingsPage> {
 
   void _showStoragePermissionDialog() {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -945,7 +954,7 @@ class _SettingsPageState extends State<SettingsPage> {
   void _showClearCacheDialog(BuildContext pageContext) async {
     final colors = Theme.of(context).colorScheme;
     // 先扫描分析
-    showDialog(
+    appDialog(
       context: pageContext,
       barrierDismissible: false,
       builder: (_) => Center(child: CircularProgressIndicator(color: colors.primary)),
@@ -968,7 +977,7 @@ class _SettingsPageState extends State<SettingsPage> {
       return;
     }
 
-    showDialog(
+    appDialog(
       context: pageContext,
       builder: (dialogContext) => AlertDialog(
         backgroundColor: colors.surface,
@@ -1038,7 +1047,7 @@ class _SettingsPageState extends State<SettingsPage> {
 
   Future<void> _clearCacheData(BuildContext context) async {
     try {
-      showDialog(
+      appDialog(
           context: context,
           barrierDismissible: false,
           builder: (_) => const Center(child: CircularProgressIndicator()));
@@ -1058,7 +1067,7 @@ class _SettingsPageState extends State<SettingsPage> {
   void _showCacheResult(
       BuildContext context, bool success, String message, bool cleaned) {
     final colors = Theme.of(context).colorScheme;
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         icon: Icon(

lib/pages/settings/recycle_bin_page.dart

@@ -3,6 +3,7 @@ import 'package:provider/provider.dart';
 import '../../providers/app_provider.dart';
 import '../../models/data_models.dart';
 import '../../utils/toast_util.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 回收站页面
 class RecycleBinPage extends StatefulWidget {
@@ -441,7 +442,7 @@ class _RecycleBinPageState extends State<RecycleBinPage> {
   }
 
   Future<void> _restore(_DeletedItem item) async {
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: Theme.of(context).colorScheme.surface,
@@ -548,7 +549,7 @@ class _RecycleBinPageState extends State<RecycleBinPage> {
 
   Future<bool> _showConfirmDialog(String message) async {
     final colors = Theme.of(context).colorScheme;
-    final result = await showDialog<bool>(
+    final result = await appDialog<bool>(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -582,7 +583,7 @@ class _RecycleBinPageState extends State<RecycleBinPage> {
   void _showClearAllDialog() {
     final pageContext = context;
     final colors = Theme.of(pageContext).colorScheme;
-    showDialog(
+    appDialog(
       context: pageContext,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,

lib/pages/settings/tag_management_page.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../../providers/app_provider.dart';
 import '../../utils/toast_util.dart';
+import '../../widgets/app_overlay.dart';
 
 class TagManagementPage extends StatefulWidget {
   const TagManagementPage({super.key});
@@ -561,7 +562,7 @@ class _TagManagementPageState extends State<TagManagementPage> {
     final name = tag['name'] as String;
     final isHidden = (tag['is_hidden'] as int?) == 1;
 
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(20))),
@@ -680,7 +681,7 @@ class _TagManagementPageState extends State<TagManagementPage> {
       }
     }
 
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(16))),
@@ -762,7 +763,7 @@ class _TagManagementPageState extends State<TagManagementPage> {
         .where((t) => (t['id'] as String) != tagId && !descendants.contains(t['id'] as String))
         .toList();
 
-    showModalBottomSheet(
+    appModalBottomSheet(
       context: context,
       backgroundColor: colors.surface,
       shape: const RoundedRectangleBorder(borderRadius: BorderRadius.vertical(top: Radius.circular(20))),
@@ -857,7 +858,7 @@ class _TagManagementPageState extends State<TagManagementPage> {
     final controller = TextEditingController();
     final type = _currentType;
 
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -927,7 +928,7 @@ class _TagManagementPageState extends State<TagManagementPage> {
     final type = tag['type'] as String;
     final oldName = tag['name'] as String;
 
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => AlertDialog(
         backgroundColor: colors.surface,
@@ -995,7 +996,7 @@ class _TagManagementPageState extends State<TagManagementPage> {
         .map((t) => t['name'] as String)
         .toList();
 
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) => StatefulBuilder(
         builder: (ctx, setDialogState) {

lib/pages/sync/backup_page.dart

@@ -5,6 +5,7 @@ import '../../providers/app_provider.dart';
 import '../../services/sync/backup_service.dart';
 import '../../utils/toast_util.dart';
 import '../../utils/user_prefs.dart';
+import '../../widgets/app_overlay.dart';
 
 /// 本地备份页面
 class BackupPage extends StatefulWidget {
@@ -500,7 +501,7 @@ class _BackupPageState extends State<BackupPage> {
     required String content,
     String? detail,
   }) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -600,7 +601,7 @@ class _BackupPageState extends State<BackupPage> {
   /// 导入数据
   Future<void> _importData() async {
     // 显示确认对话框
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;

lib/pages/sync/webdav_sync_page.dart

@@ -3,6 +3,7 @@ import 'package:provider/provider.dart';
 import '../../utils/toast_util.dart';
 import '../../services/sync/webdav_service.dart';
 import '../../providers/app_provider.dart';
+import '../../widgets/app_overlay.dart';
 
 /// WebDAV 备份页面
 class WebDAVSyncPage extends StatefulWidget {
@@ -183,7 +184,7 @@ class _WebDAVSyncPageState extends State<WebDAVSyncPage> {
   }
 
   void _showResultDialog(String title, String content) {
-    showDialog(
+    appDialog(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -231,7 +232,7 @@ class _WebDAVSyncPageState extends State<WebDAVSyncPage> {
   }
 
   Future<void> _showUploadConfirm() async {
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -269,7 +270,7 @@ class _WebDAVSyncPageState extends State<WebDAVSyncPage> {
   }
 
   Future<void> _showDownloadConfirm() async {
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;
@@ -307,7 +308,7 @@ class _WebDAVSyncPageState extends State<WebDAVSyncPage> {
   }
 
   Future<void> _clearConfig() async {
-    final confirmed = await showDialog<bool>(
+    final confirmed = await appDialog<bool>(
       context: context,
       builder: (ctx) {
         final colors = Theme.of(ctx).colorScheme;