fix: 音频系统代码清理 - 修复TouchPositionHandler多余} + 清理死代码

- TouchPositionHandler: 修复sed残留多余}，改用PlayClipAtPoint
- PageController: StopBgMusic/HideAllPages分行，删除未调用的PlayWomanAudioSequence

Assets/Scripts/UI/PageController.cs

@@ -191,8 +191,6 @@ public class PageController : MonoBehaviour
         var dialogue = GameObject.Find("DialogueBubble");
         if (dialogue != null) dialogue.SetActive(false);
     }
-
-
     #endregion
 
     #region 按钮回调
@@ -259,7 +257,8 @@ public class PageController : MonoBehaviour
         Debug.Log($"PageController: GameManager 已设置 Mode=[{gm.CurrentMode}] Fixation=[{gm.CurrentFixationMethod}]");
 
         // 隐藏所有UI面板，准备播放片头动画
-        StopBgMusic();        HideAllPages();
+        StopBgMusic();
+        HideAllPages();
 
         // 找到 OpeningFlowController 播放片头动画
         var openingFlow = FindObjectOfType<OpeningFlowController>();
@@ -318,23 +317,6 @@ public class PageController : MonoBehaviour
         if (dialogue != null) dialogue.SetActive(true);
     }
 
-    private System.Collections.IEnumerator PlayWomanAudioSequence()
-    {
-        if (_womanClips == null || _womanClips.Length == 0) yield break;
-        var voiceSource = gameObject.AddComponent<AudioSource>();
-        voiceSource.loop = false;
-        voiceSource.playOnAwake = false;
-        foreach (var clip in _womanClips)
-        {
-            if (clip == null) continue;
-            voiceSource.clip = clip;
-            voiceSource.Play();
-            Debug.Log($"PageController: 播放woman语音: {clip.name}");
-            yield return new WaitForSeconds(clip.length + 0.5f);
-        }
-    }
-
-
     public void ReturnToHome()
     {
         Debug.Log("PageController: [ReturnToHome] 返回首页并重置场景");
@@ -364,13 +346,9 @@ public class PageController : MonoBehaviour
     }
 
     #endregion
-
-
     [Header("=== 音频 ===")]
     [SerializeField] private AudioClip _homeBgClip;
     [SerializeField] private AudioClip _experimentBgClip;
     [SerializeField] private AudioClip[] _womanClips;
     private AudioSource _bgAudioSource;
-
-
 }