适配c2；新版设计稿；对战切换手势；主逻辑接通；使用think的阻力值，修改影子模式船位置

Assets/Scripts/UI/Prefab/Mail/MailListController.cs

@@ -1,4 +1,5 @@
-using Assets.Scripts.Apis.Models;
+using Assets.Scripts;
+using Assets.Scripts.Apis.Models;
 using System;
 using System.Collections;
 using System.Collections.Generic;
@@ -31,7 +32,8 @@ public class MailListController : PFUIPanel
 
     private void DisplayMails(List<MailModel> list)
     {
-        scroll.content.DetachChildren();
+        if (list == null) return;
+        scroll.content.DestroyChildren();
         if (mail != null)
         {
             foreach (var item in list)