fix(flutter): 修复详情与播放器底部闪白

lib/app.dart

@@ -50,6 +50,16 @@ import 'core/theme/app_colors.dart';
 import 'l10n/app_localizations.dart';
 import 'pages/home/home_view.dart';
 
+/// 全局系统栏样式：浅暖导航栏、关闭 Android 对比遮罩。
+final SystemUiOverlayStyle appSystemOverlayStyle = SystemUiOverlayStyle.dark
+    .copyWith(
+      statusBarColor: Colors.transparent,
+      systemNavigationBarColor: AppColors.ink,
+      systemNavigationBarDividerColor: Colors.transparent,
+      systemNavigationBarIconBrightness: Brightness.dark,
+      systemNavigationBarContrastEnforced: false,
+    );
+
 class LumaDramaApp extends StatefulWidget {
   const LumaDramaApp({
     super.key,
@@ -263,11 +273,7 @@ class _LumaDramaAppState extends State<LumaDramaApp> {
           theme: AppTheme.light(),
           darkTheme: AppTheme.light(),
           builder: (context, child) => AnnotatedRegion<SystemUiOverlayStyle>(
-            value: SystemUiOverlayStyle.dark.copyWith(
-              statusBarColor: Colors.transparent,
-              systemNavigationBarColor: AppColors.bar,
-              systemNavigationBarIconBrightness: Brightness.dark,
-            ),
+            value: appSystemOverlayStyle,
             child: child ?? const SizedBox.shrink(),
           ),
           home: const HomePage(),