diff --git a/client/ChatManager.cpp b/client/ChatManager.cpp
index cd1a405..54235fc 100644
--- a/client/ChatManager.cpp
+++ b/client/ChatManager.cpp
@@ -245,14 +245,17 @@ INT_PTR CALLBACK CChatManager::ChatDialogProc(HWND hDlg, UINT uMsg, WPARAM wPara
             return TRUE;
         }
         if (LOWORD(wParam) == IDC_BUTTON_END) {
-            // 被控端主动结束交谈：关闭本地聊天窗口
-            SendMessage(hDlg, WM_USER + 1, NULL, NULL);
+            // 被控端关闭聊天窗口：仅隐藏对话框，会话保持。关闭交谈始终由服务端发起，
+            // 服务端继续发消息时 OnReceive 会用 SW_RESTORE 重新弹出本对话框。
+            ShowWindow(hDlg, SW_HIDE);
             return TRUE;
         }
         break;
 
     case WM_CLOSE:
-        return 0;
+        // X 关闭按钮：仅隐藏对话框（与「结束交谈」一致），关闭交谈始终由服务端发起
+        ShowWindow(hDlg, SW_HIDE);
+        return TRUE;
 
     case WM_USER + 1:
         pThis->m_hWnd = NULL;