目前调通了120全局，准备开始介入播放层，在修bug

lib/widgets/mini_player_bar.dart

@@ -1,4 +1,3 @@
-// lib/widgets/mini_player_bar.dart
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import '../services/audio_service.dart';
@@ -15,31 +14,40 @@ class MiniPlayerBar extends StatelessWidget {
       height: 64,
       decoration: BoxDecoration(
         color: const Color(0xFF1A1F1E),
-        border:
-            const Border(top: BorderSide(color: Colors.white10, width: 0.5)),
         boxShadow: [
           BoxShadow(
-              color: Colors.black26,
-              blurRadius: 8,
-              offset: const Offset(0, -2)),
+            color: Colors.black.withOpacity(0.4),
+            blurRadius: 12,
+            offset: const Offset(0, -4),
+          ),
         ],
+        // 顶部微渐变（轻阴影）
+        gradient: LinearGradient(
+          begin: Alignment.topCenter,
+          end: Alignment.bottomCenter,
+          colors: [
+            Colors.transparent,
+            Colors.black.withOpacity(0.1),
+          ],
+          stops: const [0.0, 1.0],
+        ),
       ),
       child: Row(
         children: [
           const SizedBox(width: 12),
-          // ---- 封面方图 ----
+          // 封面占位（56px）
           Container(
-            width: 44,
-            height: 44,
+            width: 48,
+            height: 48,
             decoration: BoxDecoration(
               color: const Color(0xFF2A3332),
-              borderRadius: BorderRadius.circular(6),
+              borderRadius: BorderRadius.circular(4),
             ),
             child:
-                const Icon(Icons.music_note, color: Colors.white38, size: 22),
+                const Icon(Icons.music_note, color: Colors.white38, size: 24),
           ),
           const SizedBox(width: 12),
-          // ---- 歌曲信息 ----
+          // 歌曲信息
           Expanded(
             child: Column(
               mainAxisAlignment: MainAxisAlignment.center,
@@ -48,20 +56,26 @@ class MiniPlayerBar extends StatelessWidget {
                 Text(
                   song.title,
                   style: const TextStyle(
-                      fontSize: 14, fontWeight: FontWeight.w500),
+                    fontSize: 15,
+                    fontWeight: FontWeight.w500,
+                    color: Colors.white,
+                  ),
                   maxLines: 1,
                   overflow: TextOverflow.ellipsis,
                 ),
                 Text(
                   song.artist,
-                  style: TextStyle(fontSize: 12, color: Colors.grey[400]),
+                  style: TextStyle(
+                    fontSize: 13,
+                    color: Colors.grey[400],
+                  ),
                   maxLines: 1,
                   overflow: TextOverflow.ellipsis,
                 ),
               ],
             ),
           ),
-          // ---- 控制按钮：播放/暂停 + 展开列表 ----
+          // 控制按钮
           IconButton(
             icon: Icon(
               service.isPlaying ? Icons.pause : Icons.play_arrow,
@@ -72,9 +86,7 @@ class MiniPlayerBar extends StatelessWidget {
           IconButton(
             icon:
                 const Icon(Icons.playlist_play_outlined, color: Colors.white54),
-            onPressed: () {
-              // 后续：展开当前播放列表
-            },
+            onPressed: () {},
           ),
           const SizedBox(width: 4),
         ],