diff --git a/Assets/PerfectWorld/Scripts/Managers/EC_HostInputFilter.cs b/Assets/PerfectWorld/Scripts/Managers/EC_HostInputFilter.cs
index 26602b8a5e..58efffce4d 100644
--- a/Assets/PerfectWorld/Scripts/Managers/EC_HostInputFilter.cs
+++ b/Assets/PerfectWorld/Scripts/Managers/EC_HostInputFilter.cs
@@ -24,7 +24,11 @@ namespace BrewMonster
             }
         }
 
-        public void OnMsgLBtnClick()
+        /// <summary>
+        /// Handle left button click / 处理左键点击
+        /// </summary>
+        /// <param name="idTargetOverride">Optional target ID to use instead of raycast (for second-click behavior) / 可选的目标ID，用于替代射线检测（用于第二次点击行为）</param>
+        public void OnMsgLBtnClick(int idTargetOverride = 0)
         {
             // 停止自动策略 / Stop auto policy
             // Note: Auto policy check would go here if implemented
@@ -34,16 +38,85 @@ namespace BrewMonster
             int iTraceReason = CECHPWorkTrace.Trace_reason.TRACE_NONE;
             bool bWikiMonster = false;
 
-            ray = mainCam.ScreenPointToRay(Input.mousePosition);
-            Vector3 vStart = mainCam.transform.position;
-            Vector3 vDest = ray.GetPoint(1.0f);
-            Vector3 vDelta = vDest - vStart;
+            // If target override is provided, treat it as second click on selected target / 如果提供了目标覆盖，将其视为对已选中目标的第二次点击
+            if (idTargetOverride != 0)
+            {
+                int idObject = idTargetOverride;
+                
+                // Check if it's a matter object / 检查是否是物品对象
+                CECMatter pMatter = EC_ManMessageMono.Instance.EC_ManMatter.GetMatter(idObject);
+                if (pMatter != null)
+                {
+                    idTraceTarget = pMatter.GetMatterID();
+                    bool bIsMine = pMatter.IsMine();
+                    iTraceReason = bIsMine ? CECHPWorkTrace.Trace_reason.TRACE_GATHER : CECHPWorkTrace.Trace_reason.TRACE_PICKUP;
+                }
+                else
+                {
+                    // NPC or Player / NPC或玩家
+                    CECNPC pNPC = EC_ManMessageMono.Instance.CECNPCMan.GetNPC(idObject);
+                    if (pNPC != null)
+                    {
+                        // Treat as second click (already selected) / 视为第二次点击（已选中）
+                        if (!pNPC.IsDead() && m_idSelTarget == idObject)
+                        {
+                            idTraceTarget = idObject;
+                        }
+                        else
+                        {
+                            idSelTarget = idObject;
+                        }
 
-            // Check for NPC with pate text (hover text) first
-            // Note: This would require GetMouseOnPateTextNPC implementation
-            // For now, we'll proceed with raycast
+                        if (idTraceTarget != 0)
+                        {
+                            if (AttackableJudge(idObject, bForceAttack) == 1)
+                                iTraceReason = CECHPWorkTrace.Trace_reason.TRACE_ATTACK;
+                            else if (pNPC.IsServerNPC())
+                            {
+                                if (!IsInBattle() || InSameBattleCamp(pNPC))
+                                    iTraceReason = CECHPWorkTrace.Trace_reason.TRACE_TALK;
+                            }
+                        }
+                    }
+                    else
+                    {
+                        // Player / 玩家
+                        CECPlayer pPlayer = EC_ManMessageMono.Instance.EC_ManPlayer.GetPlayer(idObject);
+                        if (pPlayer != null && !pPlayer.IsDead() &&
+                            (m_idSelTarget == idObject))
+                        {
+                            idTraceTarget = idObject;
+                            if (AttackableJudge(idObject, bForceAttack) == 1)
+                                iTraceReason = CECHPWorkTrace.Trace_reason.TRACE_ATTACK;
+                            else if (pPlayer.GetBoothState() != 0)
+                                iTraceReason = CECHPWorkTrace.Trace_reason.TRACE_TALK;
+                        }
+                        else if (pPlayer != null)
+                        {
+                            idSelTarget = idObject;
+                        }
+                    }
 
-            if (Physics.Raycast(ray, out hit))
+                    // cancel this action if not selectable / 如果不可选择则取消此操作
+                    if (!CanSelectTarget(idTraceTarget))
+                    {
+                        return;
+                    }
+                }
+            }
+            else
+            {
+                // Normal raycast-based click / 正常的基于射线检测的点击
+                ray = mainCam.ScreenPointToRay(Input.mousePosition);
+                Vector3 vStart = mainCam.transform.position;
+                Vector3 vDest = ray.GetPoint(1.0f);
+                Vector3 vDelta = vDest - vStart;
+
+                // Check for NPC with pate text (hover text) first
+                // Note: This would require GetMouseOnPateTextNPC implementation
+                // For now, we'll proceed with raycast
+
+                if (Physics.Raycast(ray, out hit))
             {
                 // Check if hit terrain, building, or forest (no CECObject component)
                 if (!hit.collider.gameObject.TryGetComponent<CECObject>(out CECObject clickedObject))
@@ -185,6 +258,7 @@ namespace BrewMonster
                     }
                 }
             }
+            }
             /*else
             {
                 // Nothing is clicked / Nothing is clicked