暂时把bug先处理掉了，准备尝试实现最小播放目标

lib/main.dart

@@ -7,9 +7,7 @@ import 'pages/home_page.dart';
 
 void main() {
   WidgetsFlutterBinding.ensureInitialized();
-  // 初始化 media_kit
-  Player.init();
-  // 初始化播放服务
+  // media_kit 不需要静态 init，PlaybackService 中会初始化 Player
   PlaybackService().init();
   runApp(
     ChangeNotifierProvider(
@@ -32,8 +30,9 @@ class QTPlayerApp extends StatelessWidget {
         colorScheme: const ColorScheme.dark(
           primary: Color(0xFF7C9A9E),
           secondary: Color(0xFFB8D4D0),
-          surface: Color(0xFF1A1F1E),
-          background: Color(0xFF0E1211),
+          surface: Color(0xFF1A1F1E), // 替代 background
+          // 用 onSurface 控制文字颜色
+          onSurface: Colors.white,
         ),
         appBarTheme: const AppBarTheme(
           backgroundColor: Color(0xFF1A1F1E),