feat: ping/chanrao交互系统 + camera3平滑切换

- PingClickHandler: 蓝色闪烁描边, 点击显示chanrao并隐藏自己, 链式激活下个ping
- ping链: 004→003→002→001 (从4开始)
- TouchPositionHandler: point1点击时黑幕渐入→切camera3→渐出
- PageController: 实验启动时激活ping.004

Assets/Scripts/Interaction/PingClickHandler.cs

@@ -0,0 +1,60 @@
+using UnityEngine;
+
+/// <summary>
+/// 挂在每个 ping 对象上。带蓝色闪烁描边，点击后显示对应 chanrao 并隐藏自己。
+/// 从 ping.004 开始作为第一个（reverse order）。
+/// </summary>
+public class PingClickHandler : MonoBehaviour
+{
+    public GameObject chanraoObject;
+    public GameObject nextPing;
+
+    private MeshRenderer _meshRenderer;
+
+    void Start()
+    {
+        _meshRenderer = GetComponent<MeshRenderer>();
+        if (_meshRenderer == null) _meshRenderer = GetComponentInChildren<MeshRenderer>();
+        StartCoroutine(BlinkOutline());
+    }
+
+    void OnEnable()
+    {
+        _meshRenderer = GetComponent<MeshRenderer>();
+        if (_meshRenderer == null) _meshRenderer = GetComponentInChildren<MeshRenderer>();
+        if (_meshRenderer != null) _meshRenderer.enabled = true;
+        StopAllCoroutines();
+        StartCoroutine(BlinkOutline());
+    }
+
+    System.Collections.IEnumerator BlinkOutline()
+    {
+        while (true)
+        {
+            if (_meshRenderer != null)
+                _meshRenderer.enabled = !_meshRenderer.enabled;
+            yield return new WaitForSeconds(0.4f);
+        }
+    }
+
+    void OnMouseDown()
+    {
+        Debug.Log($"[PingClick] {name} 被点击");
+
+        if (chanraoObject != null)
+        {
+            chanraoObject.SetActive(true);
+            Debug.Log($"[PingClick] {chanraoObject.name} 已显示");
+        }
+
+        StopAllCoroutines();
+        if (_meshRenderer != null) _meshRenderer.enabled = false;
+        gameObject.SetActive(false);
+
+        if (nextPing != null)
+        {
+            nextPing.SetActive(true);
+            Debug.Log($"[PingClick] {name} → {nextPing.name} 已激活");
+        }
+    }
+}

Assets/Scripts/Interaction/PingClickHandler.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 4f940d2edab2d44ad98aa707038ce89c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Interaction/TouchPositionHandler.cs

@@ -53,6 +53,10 @@ public class TouchPositionHandler : MonoBehaviour
             Debug.Log($"[TouchPosition] 播放语音: {voiceClip.name}");
         }
 
+                // 点击point1时平滑切换到camera3
+        if (transform.GetSiblingIndex() == 0)
+            StartCoroutine(SwitchToCamera3Smooth());
+
         int stepIndex = transform.GetSiblingIndex() + 1;
         var sm = FindObjectOfType<StepManager>();
         if (sm != null) sm.RecordWomanStep(stepIndex);
@@ -83,4 +87,44 @@ public class TouchPositionHandler : MonoBehaviour
         _sharedVoice.clip = voiceClip;
         _sharedVoice.Play();
     }
+    System.Collections.IEnumerator SwitchToCamera3Smooth()
+    {
+        var black = GameObject.Find("BlackScreenPanel");
+        var blackImg = black != null ? black.GetComponent<UnityEngine.UI.Image>() : null;
+        float duration = 0.8f;
+
+        // 渐入黑
+        if (black != null && blackImg != null)
+        {
+            black.SetActive(true);
+            for (float t = 0f; t < duration; t += Time.deltaTime)
+            {
+                blackImg.color = new Color(0, 0, 0, t / duration);
+                yield return null;
+            }
+            blackImg.color = Color.black;
+        }
+
+        // 切换摄像机
+        var cam2 = GameObject.Find("camera2");
+        var cam3 = GameObject.Find("camera3");
+        if (cam2 != null) { var c = cam2.GetComponent<Camera>(); if (c != null) c.enabled = false; }
+        if (cam3 != null) { var c = cam3.GetComponent<Camera>(); if (c != null) c.enabled = true; }
+        Debug.Log("[TouchPosition] camera2→camera3 平滑切换完成");
+
+        yield return new WaitForSeconds(0.2f);
+
+        // 渐出黑
+        if (black != null && blackImg != null)
+        {
+            for (float t = 0f; t < duration; t += Time.deltaTime)
+            {
+                blackImg.color = new Color(0, 0, 0, 1f - t / duration);
+                yield return null;
+            }
+            blackImg.color = new Color(0, 0, 0, 0);
+            black.SetActive(false);
+        }
+    }
+
 }

Assets/Scripts/UI/PageController.cs

@@ -281,7 +281,14 @@ public class PageController : MonoBehaviour
         }
 
         var touch = GameObject.Find("touchArray");
-        if (touch != null && touch.transform.childCount > 0) { touch.transform.GetChild(0).gameObject.SetActive(true); Debug.Log("PageController: touchArray/point1 已显示"); }
+        if (touch != null && touch.transform.childCount > 0) { touch.transform.GetChild(0).gameObject.SetActive(true); Debug.Log("PageController: touchArray/point1 已显示");
+
+        // 激活第一个 ping (ping.004)
+        var mi = GameObject.Find("manInjury");
+        if (mi != null) {
+            var ping4 = mi.transform.Find("ping.004");
+            if (ping4 != null) { ping4.gameObject.SetActive(true); Debug.Log("PageController: ping.004 已激活"); }
+        } }
 
         var tipPanel = GameObject.Find("TipPanel");
         if (tipPanel != null) tipPanel.SetActive(true);