部分界面逻辑调整：播放界面默认最高优先级，其次是独立的miniplayerbar

lib/widgets/global_mini_player.dart

@@ -2,13 +2,15 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../services/audio_service.dart';
-import '../pages/player_page.dart';
 import '../pages/playlist_page.dart';
 import '../main.dart'; // ✅ 导入 navigatorKey
 
 class GlobalMiniPlayer extends StatelessWidget {
   const GlobalMiniPlayer({super.key});
 
+  // ✅ 通过全局回调打开播放页（由 main.dart 注入）
+  static VoidCallback? onOpenPlayerPage;
+
   @override
   Widget build(BuildContext context) {
     final service = context.watch<AudioService>();
@@ -18,13 +20,8 @@ class GlobalMiniPlayer extends StatelessWidget {
 
     return GestureDetector(
       onTap: () {
-        if (song != null) {
-          // ✅ 使用 navigatorKey 跳转
-          navigatorKey.currentState?.push(
-            MaterialPageRoute(
-              builder: (_) => const PlayerPage(),
-            ),
-          );
+        if (song != null && onOpenPlayerPage != null) {
+          onOpenPlayerPage!();
         }
       },
       child: Container(
@@ -115,7 +112,6 @@ class GlobalMiniPlayer extends StatelessWidget {
                     size: 24,
                   ),
                   onPressed: () {
-                    // ✅ 使用 navigatorKey 跳转
                     navigatorKey.currentState?.push(
                       MaterialPageRoute(
                         builder: (_) => const PlaylistPage(),