修复结算界面中返回主页按钮的功能

unity/Assets/UI/SceneLoader.cs

@@ -93,6 +93,8 @@ namespace GameFramework
                 }
                 transitionImage.gameObject.SetActive(false);
             }
+
+            isLoading = false;
         }
     }
 }

unity/Assets/UI/ScoringUIController.cs

@@ -65,8 +65,13 @@ namespace GameFramework
 
         void Start()
         {
-            // 判断胜负
-            _isWin = (GameManager.GameState == GameState.Victory);
+            // 确保 Canvas 有 GraphicRaycaster（否则按钮无法响应点击）
+            var canvas = GetComponent<Canvas>();
+            if (canvas != null && GetComponent<GraphicRaycaster>() == null)
+                gameObject.AddComponent<GraphicRaycaster>();
+
+            // 判断胜负（GameManager 可能未初始化，默认视为失败）
+            _isWin = GameManager.Instance != null && GameManager.GameState == GameState.Victory;
 
             // 绑定按钮
             if (submitButton != null)