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/NBC/UI/Runtime/Const/UIConst.cs

@@ -0,0 +1,25 @@
+using UnityEngine;
+
+namespace NBC
+{
+    public static class UIConst
+    {
+        public const string ServiceName = "NBC.UIKit";
+        
+        /// <summary>
+        /// UI资源前缀
+        /// </summary>
+        public static string UIPackRootUrl = "";
+        
+        /// <summary>
+        /// UI安全区域
+        /// </summary>
+        public static Rect SafeArea = Rect.zero;
+        
+        
+        /// <summary>
+        /// 开启UI安全区域
+        /// </summary>
+        internal static bool OpenSafeArea = false;
+    }
+}

Assets/Scripts/NBC/UI/Runtime/Const/UIConst.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 8599513d5235498b9f2cc5894451a3e6
+timeCreated: 1603427408

Assets/Scripts/NBC/UI/Runtime/Const/UIEvents.cs

@@ -0,0 +1,9 @@
+namespace NBC
+{
+    public static class UIEvents
+    {
+        public const string UIShow = "UIShow";
+        
+        public const string UIHide = "UIHide";
+    }
+}

Assets/Scripts/NBC/UI/Runtime/Const/UIEvents.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 398ef2627f5f47c2969f775329e212c0
+timeCreated: 1658111393