diff --git a/Assets/Scripts/Framework/EventSystemKit/EventSystemEx.cs b/Assets/Scripts/Framework/EventSystemKit/EventSystemEx.cs
index baf2de0a5..20a34b25d 100644
--- a/Assets/Scripts/Framework/EventSystemKit/EventSystemEx.cs
+++ b/Assets/Scripts/Framework/EventSystemKit/EventSystemEx.cs
@@ -90,6 +90,20 @@ namespace AibisDream.Framework
 
         #endregion
 
+        /// <summary>
+        /// 兜底：鼠标左键已抬起时强制清空 holding/dragging。
+        /// 防止 EventTrigger 在 isLocked 时跳过 Up/EndDrag 清理后光标一直停在抓取。
+        /// </summary>
+        private void LateUpdate()
+        {
+            if (Input.GetMouseButton(0)) return;
+
+            if (holdingObjList.Count > 0)
+                holdingObjList.Clear();
+            if (draggingObjList.Count > 0)
+                draggingObjList.Clear();
+        }
+
         private void HandleDialogueComplete()
         {
             isLocked = false;
diff --git a/Assets/Scripts/Framework/EventSystemKit/EventTriggerEx.cs b/Assets/Scripts/Framework/EventSystemKit/EventTriggerEx.cs
index baec45557..efc63fee2 100644
--- a/Assets/Scripts/Framework/EventSystemKit/EventTriggerEx.cs
+++ b/Assets/Scripts/Framework/EventSystemKit/EventTriggerEx.cs
@@ -12,7 +12,18 @@ namespace AibisDream.Framework
     public class EventTriggerEx : EventTrigger
     {
         private IInteraction _interaction;
-        
+
+        private IInteraction Interaction
+        {
+            get
+            {
+                // 惰性获取：bridge 可能在 EventTriggerEx 之后才 AddComponent
+                if (_interaction == null)
+                    _interaction = GetComponent<IInteraction>();
+                return _interaction;
+            }
+        }
+
         private void Awake()
         {
             _interaction = GetComponent<IInteraction>();
@@ -73,15 +84,26 @@ namespace AibisDream.Framework
             }
         }
 
+        private bool CanStartInteraction()
+        {
+            return Interaction != null
+                   && Interaction.IsAvailable
+                   && EventSystemEx.Instance != null
+                   && !EventSystemEx.Instance.isLocked;
+        }
+
         public override void OnPointerEnter(PointerEventData data)
         {
-            if (_interaction != null) EventSystemEx.Instance.OnPointerEnter(_interaction);
+            if (Interaction != null && EventSystemEx.Instance != null)
+                EventSystemEx.Instance.OnPointerEnter(Interaction);
             base.OnPointerEnter(data);
         }
 
         public override void OnPointerExit(PointerEventData data)
         {
-            if (_interaction != null) EventSystemEx.Instance.OnPointerExit(_interaction);
+            // 退出必须始终清理，否则旋转/细长 Collider 丢 Exit 时会卡住光标
+            if (Interaction != null && EventSystemEx.Instance != null)
+                EventSystemEx.Instance.OnPointerExit(Interaction);
             base.OnPointerExit(data);
         }
 
@@ -89,57 +111,59 @@ namespace AibisDream.Framework
         {
             // 对话等场景 isLocked 时仍要让 EventTrigger 上注册的回调执行（如塔罗 PointerDown），
             // 否则会出现能 Hover、但 Down/Up/Click 全不进组件的问题。
-            if (_interaction != null && _interaction.IsAvailable && !EventSystemEx.Instance.isLocked)
-                EventSystemEx.Instance.OnPointerDown(_interaction);
+            // 仅「开始」交互时受 isLocked / IsAvailable 门控；清理路径见 Up/EndDrag。
+            if (CanStartInteraction())
+                EventSystemEx.Instance.OnPointerDown(Interaction);
             base.OnPointerDown(eventData);
         }
 
         public override void OnPointerUp(PointerEventData eventData)
         {
-            if (_interaction != null && _interaction.IsAvailable && !EventSystemEx.Instance.isLocked)
-                EventSystemEx.Instance.OnPointerUp(_interaction);
+            // 松手必须始终清理 holding，否则充能结束开对话把 isLocked 置真后会永远卡在抓取光标
+            if (Interaction != null && EventSystemEx.Instance != null)
+                EventSystemEx.Instance.OnPointerUp(Interaction);
             base.OnPointerUp(eventData);
         }
 
         public override void OnDrag(PointerEventData eventData)
         {
-            if (_interaction != null && _interaction.IsAvailable && !EventSystemEx.Instance.isLocked)
+            if (CanStartInteraction())
             {
-                EventSystemEx.Instance.OnDrag(_interaction);
+                EventSystemEx.Instance.OnDrag(Interaction);
                 base.OnDrag(eventData);
             }
         }
 
         public override void OnEndDrag(PointerEventData eventData)
         {
-            if (_interaction != null && _interaction.IsAvailable && !EventSystemEx.Instance.isLocked)
-            {
-                EventSystemEx.Instance.OnEndDrag(_interaction);
-                base.OnEndDrag(eventData);
-            }
+            // 与 PointerUp 相同：清理不受 isLocked 门控
+            if (Interaction != null && EventSystemEx.Instance != null)
+                EventSystemEx.Instance.OnEndDrag(Interaction);
+            base.OnEndDrag(eventData);
         }
 
         public override void OnBeginDrag(PointerEventData eventData)
         {
-            if (_interaction != null && _interaction.IsAvailable && !EventSystemEx.Instance.isLocked)
+            if (CanStartInteraction())
             {
-                EventSystemEx.Instance.OnBeginDrag(_interaction);
+                EventSystemEx.Instance.OnBeginDrag(Interaction);
                 base.OnBeginDrag(eventData);
             }
         }
 
         public override void OnPointerClick(PointerEventData eventData)
         {
-            if (_interaction != null && _interaction.IsAvailable && !EventSystemEx.Instance.isLocked)
+            if (CanStartInteraction())
             {
-                // EventSystemEx.Instance.OnPointerClick(_interaction);
+                // EventSystemEx.Instance.OnPointerClick(Interaction);
             }
             base.OnPointerClick(eventData);
         }
 
         void OnDestroy()
         {
-            EventSystemEx.Instance.UnRegister(_interaction);
+            if (EventSystemEx.Instance != null && Interaction != null)
+                EventSystemEx.Instance.UnRegister(Interaction);
         }
     }
 
@@ -154,4 +178,4 @@ namespace AibisDream.Framework
         // 返回GameObject
         public GameObject GetGameObject();
     }
-}
\ No newline at end of file
+}