diff --git a/lib/pages/ai_config_page.dart b/lib/pages/ai_config_page.dart
index 86f2f6c0..9758b9b5 100644
--- a/lib/pages/ai_config_page.dart
+++ b/lib/pages/ai_config_page.dart
@@ -402,15 +402,16 @@ class _AiConfigPageState extends State<AiConfigPage> {
                                     l10n.aiTimeoutTitle,
                                     style: textTheme.titleMedium,
                                   ),
-                                  Text(
-                                    '${_aiTimeoutDraft}s',
-                                    style: textTheme.bodySmall?.copyWith(
-                                      color: cs.onSurfaceVariant,
-                                    ),
-                                  ),
                                 ],
                               ),
                             ),
+                            Text(
+                              '${_aiTimeoutDraft}s',
+                              style: textTheme.bodyLarge?.copyWith(
+                                color: cs.primary,
+                                fontWeight: FontWeight.bold,
+                              ),
+                            ),
                           ],
                         ),
                         SliderTheme(
diff --git a/lib/pages/settings_page.dart b/lib/pages/settings_page.dart
index 91d5970d..380bc11f 100644
--- a/lib/pages/settings_page.dart
+++ b/lib/pages/settings_page.dart
@@ -749,8 +749,11 @@ class _SettingsPageState extends State<SettingsPage> {
                                 ),
                                 Text(
                                   l10n.marqueeSpeedLabel(_marqueeSpeedDraft),
-                                  style: Theme.of(context).textTheme.bodySmall
-                                      ?.copyWith(color: cs.onSurfaceVariant),
+                                  style: Theme.of(context).textTheme.bodyLarge
+                                      ?.copyWith(
+                                        color: cs.primary,
+                                        fontWeight: FontWeight.bold,
+                                      ),
                                 ),
                                 if (_marqueeSpeedDraft != 100)
                                   SizedBox(
@@ -822,12 +825,30 @@ class _SettingsPageState extends State<SettingsPage> {
                               ),
                               child: Row(
                                 children: [
+                                  Expanded(
+                                    child: SliderTheme(
+                                      data: ModernSliderTheme.theme(context),
+                                      child: Slider(
+                                        value: _bigIslandMaxWidthDraft
+                                            .toDouble(),
+                                        min: 500,
+                                        max: 1000,
+                                        divisions: 54,
+                                        onChanged: _onBigIslandMaxWidthChanged,
+                                        onChangeEnd: _persistBigIslandMaxWidth,
+                                      ),
+                                    ),
+                                  ),
+                                  const SizedBox(width: 8),
                                   Text(
                                     l10n.bigIslandMaxWidthLabel(
                                       _bigIslandMaxWidthDraft,
                                     ),
-                                    style: Theme.of(context).textTheme.bodySmall
-                                        ?.copyWith(color: cs.onSurfaceVariant),
+                                    style: Theme.of(context).textTheme.bodyLarge
+                                        ?.copyWith(
+                                          color: cs.primary,
+                                          fontWeight: FontWeight.bold,
+                                        ),
                                   ),
                                   if (_bigIslandMaxWidthDraft != 600)
                                     SizedBox(
@@ -849,20 +870,6 @@ class _SettingsPageState extends State<SettingsPage> {
                                         },
                                       ),
                                     ),
-                                  Expanded(
-                                    child: SliderTheme(
-                                      data: ModernSliderTheme.theme(context),
-                                      child: Slider(
-                                        value: _bigIslandMaxWidthDraft
-                                            .toDouble(),
-                                        min: 500,
-                                        max: 1000,
-                                        divisions: 54,
-                                        onChanged: _onBigIslandMaxWidthChanged,
-                                        onChangeEnd: _persistBigIslandMaxWidth,
-                                      ),
-                                    ),
-                                  ),
                                 ],
                               ),
                             ),
diff --git a/lib/pages/whitelist_page.dart b/lib/pages/whitelist_page.dart
index 7608ee12..8fcfca9f 100644
--- a/lib/pages/whitelist_page.dart
+++ b/lib/pages/whitelist_page.dart
@@ -344,24 +344,61 @@ class WhitelistPageState extends State<WhitelistPage> {
                     ],
             ),
 
-            // 说明 + 搜索栏
+            // 说明文本（随列表滚动，不吸顶）
             SliverToBoxAdapter(
-              child: Container(
+              child: Padding(
                 padding: const EdgeInsets.fromLTRB(16, 0, 16, 12),
-                child: AppListSearchHeader(
-                  countText: _ctrl.showSystemApps
+                child: Text(
+                  _ctrl.showSystemApps
                       ? l10n.enabledAppsCountWithSystem(enabledCount)
                       : l10n.enabledAppsCount(enabledCount),
-                  showCountText: true,
-                  searchController: _searchCtrl,
-                  searchFocusNode: _searchFocus,
-                  hintText: l10n.searchApps,
-                  onChanged: _ctrl.setSearch,
-                  onClear: _clearSearch,
+                  style: Theme.of(
+                    context,
+                  ).textTheme.bodyMedium?.copyWith(color: cs.onSurfaceVariant),
                 ),
               ),
             ),
 
+            // 搜索栏（仅搜索框吸顶）
+            SliverPersistentHeader(
+              pinned: true,
+              delegate: FixedSliverHeaderDelegate(
+                height: 60,
+                minHeight: 60,
+                builder: (context, overlapsContent, collapseProgress) {
+                  final appBarTheme = Theme.of(context).appBarTheme;
+                  final elevation = appBarTheme.scrolledUnderElevation ?? 3.0;
+                  final pinnedBg = overlapsContent
+                      ? ElevationOverlay.applySurfaceTint(
+                          cs.surface,
+                          cs.surfaceTint,
+                          elevation,
+                        )
+                      : cs.surface;
+                  return Material(
+                      color: pinnedBg,
+                      surfaceTintColor: Theme.of(context).colorScheme.surfaceTint,
+                      elevation: 0,
+                      child: Container(
+                        padding: const EdgeInsets.fromLTRB(16, 0, 16, 12),
+                        child: AppListSearchHeader(
+                          countText: '',
+                          showCountText: false,
+                          searchController: _searchCtrl,
+                          searchFocusNode: _searchFocus,
+                          hintText: l10n.searchApps,
+                          searchBarBackgroundColor: overlapsContent
+                              ? cs.surface
+                              : cs.surfaceContainerHighest,
+                          onChanged: _ctrl.setSearch,
+                          onClear: _clearSearch,
+                        ),
+                      ),
+                    );
+                },
+              ),
+            ),
+
             // 内容区
             if (_ctrl.loading)
               const SliverFillRemaining(
diff --git a/lib/widgets/app_list_widgets.dart b/lib/widgets/app_list_widgets.dart
index 61001cc8..c0456a96 100644
--- a/lib/widgets/app_list_widgets.dart
+++ b/lib/widgets/app_list_widgets.dart
@@ -7,6 +7,7 @@ class AppListSearchHeader extends StatelessWidget {
     super.key,
     required this.countText,
     this.showCountText = true,
+    this.searchBarBackgroundColor,
     required this.searchController,
     required this.searchFocusNode,
     required this.hintText,
@@ -16,6 +17,7 @@ class AppListSearchHeader extends StatelessWidget {
 
   final String countText;
   final bool showCountText;
+  final Color? searchBarBackgroundColor;
   final TextEditingController searchController;
   final FocusNode searchFocusNode;
   final String hintText;
@@ -53,7 +55,9 @@ class AppListSearchHeader extends StatelessWidget {
             EdgeInsets.symmetric(horizontal: 16),
           ),
           elevation: const WidgetStatePropertyAll(0),
-          backgroundColor: WidgetStatePropertyAll(cs.surfaceContainerHighest),
+          backgroundColor: WidgetStatePropertyAll(
+            searchBarBackgroundColor ?? cs.surfaceContainerHighest,
+          ),
           constraints: const BoxConstraints(minHeight: 48, maxHeight: 48),
         ),
       ],