diff --git a/lib/services/audio_service.dart b/lib/services/audio_service.dart
index 684c165..9609755 100644
--- a/lib/services/audio_service.dart
+++ b/lib/services/audio_service.dart
@@ -649,6 +649,9 @@ class AudioService extends ChangeNotifier {
     }
     _lastStallRecoveryAt = now;
 
+    // 恢复前记下代次：await 期间用户可能已经切歌，
+    // 不能把旧歌重新打开（否则就是"点了新歌却切回旧歌"）。
+    final recoveryGeneration = _playbackGeneration;
     final resumeAt = _lastKnownPosition > Duration.zero
         ? _lastKnownPosition
         : positionNotifier.value;
@@ -659,6 +662,10 @@ class AudioService extends ChangeNotifier {
       _playReadyAt = null;
       _firstAudioReported = false;
       await _playWithHeaders(url);
+      if (_playbackGeneration != recoveryGeneration) {
+        debugPrint('⏭️ [AudioService] 恢复期间已切歌，放弃本次恢复');
+        return;
+      }
       _playReadyAt = DateTime.now();
       if (resumeAt > Duration.zero) {
         await PlaybackService().seek(resumeAt);
@@ -681,9 +688,18 @@ class AudioService extends ChangeNotifier {
   /// 这里做 3s 去抖：切换瞬间往往会连续触发多次网络接口变化。
   void _onNetworkChanged() {
     _networkDebounce?.cancel();
+    // 记录去抖开始时的歌：2 秒内用户可能已经切歌，
+    // 那时再去重连"上一首"就是异常切换（日志里出现过 78s 重连旧歌）。
+    final expectedSongId = _currentSong?.id;
+    final expectedGeneration = _playbackGeneration;
     _networkDebounce = Timer(const Duration(seconds: 2), () {
       if (_currentSong == null) return;
       if (_isChangingTrack) return;
+      if (_currentSong?.id != expectedSongId ||
+          _playbackGeneration != expectedGeneration) {
+        debugPrint('🌐 [AudioService] 网络变化期间已切歌，忽略本次重连');
+        return;
+      }
       debugPrint('🌐 [AudioService] 网络已切换，主动重连当前歌曲');
       _recoverFromStall(force: true);
     });