diff --git a/Assets/Scripts/Interaction/ChanraoTuibuHandler.cs b/Assets/Scripts/Interaction/ChanraoTuibuHandler.cs
index c165ccc..bf665fd 100644
--- a/Assets/Scripts/Interaction/ChanraoTuibuHandler.cs
+++ b/Assets/Scripts/Interaction/ChanraoTuibuHandler.cs
@@ -15,6 +15,9 @@ public class ChanraoTuibuHandler : MonoBehaviour
         _meshRenderer = GetComponent<MeshRenderer>();
         if (_meshRenderer == null) _meshRenderer = GetComponentInChildren<MeshRenderer>();
         if (_meshRenderer != null) _meshRenderer.enabled = false;
+        // 隐藏所有子级 Renderer（确保模型不可见）
+        var allRends = GetComponentsInChildren<Renderer>();
+        foreach (var r in allRends) r.enabled = false;
         CreateBlueOutline();
         StopAllCoroutines();
         StartCoroutine(BlinkOutline());
@@ -36,14 +39,20 @@ public class ChanraoTuibuHandler : MonoBehaviour
         _outlineRenderer.endColor = new Color(0.2f, 0.5f, 1f);
 
         // 基于模型 Bounds 画矩形
+        Renderer rend = _meshRenderer;
+        if (rend == null) rend = GetComponentInChildren<Renderer>();
         Bounds b;
-        if (_meshRenderer != null) b = _meshRenderer.bounds;
+        if (rend != null) b = rend.bounds;
         else b = new Bounds(transform.position, new Vector3(0.3f, 0.01f, 0.3f));
-        float y = b.max.y + 0.05f;
-        Vector3 p0 = new Vector3(b.min.x, y, b.min.z);
-        Vector3 p1 = new Vector3(b.min.x, y, b.max.z);
-        Vector3 p2 = new Vector3(b.max.x, y, b.max.z);
-        Vector3 p3 = new Vector3(b.max.x, y, b.min.z);
+        // 扩展 20% 让边框包住模型
+        Vector3 ctr = b.center;
+        Vector3 ext = b.extents * 1.2f;
+        float y = b.max.y + 0.08f;
+        Vector3 p0 = new Vector3(ctr.x - ext.x, y, ctr.z - ext.z);
+        Vector3 p1 = new Vector3(ctr.x - ext.x, y, ctr.z + ext.z);
+        Vector3 p2 = new Vector3(ctr.x + ext.x, y, ctr.z + ext.z);
+        Vector3 p3 = new Vector3(ctr.x + ext.x, y, ctr.z - ext.z);
+        Debug.Log($"[{f}] 边框 bounds: center={ctr} extents={ext} y={y}");
         _outlineRenderer.positionCount = 5;
         _outlineRenderer.SetPosition(0, p0);
         _outlineRenderer.SetPosition(1, p1);
@@ -66,6 +75,8 @@ public class ChanraoTuibuHandler : MonoBehaviour
         Debug.Log($"[ChanraoTuibu] {name} 被点击");
         StopAllCoroutines();
         if (_meshRenderer != null) _meshRenderer.enabled = true;
+        var allRends2 = GetComponentsInChildren<Renderer>();
+        foreach (var r in allRends2) r.enabled = true;
         if (_outlineRenderer != null) _outlineRenderer.enabled = true;
         if (nextObject != null) { nextObject.SetActive(true); Debug.Log($"[ChanraoTuibu] → {nextObject.name} 已激活"); }
     }
diff --git a/Assets/Scripts/Interaction/PingClickHandler.cs b/Assets/Scripts/Interaction/PingClickHandler.cs
index fc0345e..5a657d4 100644
--- a/Assets/Scripts/Interaction/PingClickHandler.cs
+++ b/Assets/Scripts/Interaction/PingClickHandler.cs
@@ -30,6 +30,9 @@ public class PingClickHandler : MonoBehaviour
         _meshRenderer = GetComponent<MeshRenderer>();
         if (_meshRenderer == null) _meshRenderer = GetComponentInChildren<MeshRenderer>();
         if (_meshRenderer != null) _meshRenderer.enabled = false;
+        // 隐藏所有子级 Renderer（确保模型不可见）
+        var allRends = GetComponentsInChildren<Renderer>();
+        foreach (var r in allRends) r.enabled = false;
         CreateBlueOutline();
         _clickedOnce = false;
         StopAllCoroutines();
@@ -105,6 +108,8 @@ public class PingClickHandler : MonoBehaviour
             _firstClickCount++;
             StopAllCoroutines();
             if (_meshRenderer != null) _meshRenderer.enabled = true;
+        var allRends2 = GetComponentsInChildren<Renderer>();
+        foreach (var r in allRends2) r.enabled = true;
             if (_outlineRenderer != null) _outlineRenderer.enabled = true;
             if (nextPing != null) { nextPing.SetActive(true); Debug.Log($"[PingClick] {name} → {nextPing.name} 激活"); }
             Debug.Log($"[PingClick] {name} 第1击 (model显示, {_firstClickCount}/4)");
@@ -118,6 +123,9 @@ public class PingClickHandler : MonoBehaviour
             if (chanraoObject != null) { chanraoObject.SetActive(true); Debug.Log($"[PingClick] {chanraoObject.name} 已显示"); }
             StopAllCoroutines();
             if (_meshRenderer != null) _meshRenderer.enabled = false;
+        // 隐藏所有子级 Renderer（确保模型不可见）
+        var allRends = GetComponentsInChildren<Renderer>();
+        foreach (var r in allRends) r.enabled = false;
             if (_outlineRenderer != null) _outlineRenderer.enabled = false;
             gameObject.SetActive(false);
             Debug.Log($"[PingClick] {name} 第2击 (chanrao显示)");
@@ -133,6 +141,9 @@ public class PingClickHandler : MonoBehaviour
         _firstClickCount--;
         gameObject.SetActive(true);
         if (_meshRenderer != null) _meshRenderer.enabled = false;
+        // 隐藏所有子级 Renderer（确保模型不可见）
+        var allRends = GetComponentsInChildren<Renderer>();
+        foreach (var r in allRends) r.enabled = false;
         StopAllCoroutines();
         StartCoroutine(BlinkOutline());
     }
diff --git a/Assets/Video 1.meta b/Assets/Video 1.meta
new file mode 100644
index 0000000..5a2c039
--- /dev/null
+++ b/Assets/Video 1.meta	
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 44e25f60f2f814cef90b59c66c377f07
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: