结构大修改，改成朴实无华的结构，不过度架构。能跑就行

Assets/Scripts/UI/Loading/Loading.cs

@@ -24,7 +24,7 @@ namespace NBF
         //         LoadingPanel.LoadingTask.Add(waitTask);
         //     }
         //
-        //     var panel = App.UI.GetUI<LoadingPanel>();
+        //     var panel = UI.Inst.GetUI<LoadingPanel>();
         //     if (panel is not { IsShowing: true })
         //     {
         //         LoadingPanel.Show(new LoadingShowParam(style, startProgress));

Assets/Scripts/UI/Loading/LoadingPanel.Designer.cs

@@ -22,11 +22,11 @@ namespace NBF
         public GTextField TextLoading;
         public override string[] GetDependPackages(){ return new string[] {}; }
 
-        public static void Show(object param = null){ App.UI.OpenUI<LoadingPanel>(param); }
+        public static void Show(object param = null){ UI.Inst.OpenUI<LoadingPanel>(param); }
 
-        public static void Hide(){ App.UI.HideUI<LoadingPanel>(); }
+        public static void Hide(){ UI.Inst.HideUI<LoadingPanel>(); }
 
-        public static void Del(){ App.UI.DestroyUI<LoadingPanel>(); }
+        public static void Del(){ UI.Inst.DestroyUI<LoadingPanel>(); }
 
     }
 }

Assets/Scripts/UI/Loading/LoadingPanel.cs

@@ -3,7 +3,6 @@
 using Fantasy.Event;
 using UnityEngine;
 using NBC;
-using NBC.Event;
 
 namespace NBF
 {

Assets/Scripts/UI/Loading/LoadingTask.cs

@@ -27,7 +27,7 @@ namespace NBF
 
         public LoadingTask()
         {
-            App.OnUpdate += OnUpdate;
+            Game.OnUpdate += OnUpdate;
         }
 
         enum StepType
@@ -125,8 +125,8 @@ namespace NBF
         private void End()
         {
             _step = StepType.Done;
-            App.UI.HideUI<T>();
-            // App.Main.TimerComponent.Unity.OnceTimer()
+            UI.Inst.HideUI<T>();
+            // Game.Main.TimerComponent.Unity.OnceTimer()
             Timer.FrameOnce(1, this, _ => { Reset(); });
         }
     }