diff --git a/Assets/Scripts/UI/PageController.cs b/Assets/Scripts/UI/PageController.cs
index 47f061f..d4762e9 100644
--- a/Assets/Scripts/UI/PageController.cs
+++ b/Assets/Scripts/UI/PageController.cs
@@ -325,8 +325,11 @@ public class PageController : MonoBehaviour
     {
         if (_homeBgClip == null) return;
         if (_bgAudioSource == null) { _bgAudioSource = gameObject.AddComponent<AudioSource>(); _bgAudioSource.loop = true; _bgAudioSource.playOnAwake = false; }
+        _bgAudioSource.enabled = true;
         _bgAudioSource.clip = _homeBgClip;
+        _bgAudioSource.volume = 0f;
         _bgAudioSource.Play();
+        if (_fadeCoroutine != null) StopCoroutine(_fadeCoroutine);
         _fadeCoroutine = StartCoroutine(FadeInBg());
         Debug.Log("PageController: 播放首页背景音乐");
     }
@@ -335,7 +338,13 @@ public class PageController : MonoBehaviour
     {
         if (_fadeCoroutine != null) { StopCoroutine(_fadeCoroutine); _fadeCoroutine = null; }
         var allSrcs = gameObject.GetComponents<AudioSource>();
-        foreach (var s in allSrcs) { if (s != null) s.Stop(); }
+        foreach (var s in allSrcs)
+        {
+            if (s == null) continue;
+            Debug.Log("PageController: 停止AudioSource clip=" + (s.clip != null ? s.clip.name : "null"));
+            s.Stop();
+            s.enabled = false;
+        }
         Debug.Log("PageController: 停止背景音乐 (共" + allSrcs.Length + "个AudioSource)");
     }
 
@@ -344,8 +353,11 @@ public class PageController : MonoBehaviour
         StopBgMusic();
         if (_experimentBgClip == null) return;
         if (_bgAudioSource == null) { _bgAudioSource = gameObject.AddComponent<AudioSource>(); _bgAudioSource.loop = true; _bgAudioSource.playOnAwake = false; }
+        _bgAudioSource.enabled = true;
         _bgAudioSource.clip = _experimentBgClip;
+        _bgAudioSource.volume = 0f;
         _bgAudioSource.Play();
+        if (_fadeCoroutine != null) StopCoroutine(_fadeCoroutine);
         _fadeCoroutine = StartCoroutine(FadeInBg());
         Debug.Log("PageController: 播放实验背景音乐");
     }