diff --git a/app/data/controller/base/Upgrade.php b/app/data/controller/base/Upgrade.php
index ff8dc356e..39268e2e0 100644
--- a/app/data/controller/base/Upgrade.php
+++ b/app/data/controller/base/Upgrade.php
@@ -30,6 +30,8 @@ class Upgrade extends Controller
     /**
      * 添加用户等级
      * @auth true
+     * @return void
+     * @throws \think\db\exception\DbException
      */
     public function add()
     {
@@ -40,6 +42,8 @@ class Upgrade extends Controller
     /**
      * 编辑用户等级
      * @auth true
+     * @return void
+     * @throws \think\db\exception\DbException
      */
     public function edit()
     {
@@ -50,6 +54,7 @@ class Upgrade extends Controller
     /**
      * 表单数据处理
      * @param array $vo
+     * @throws \think\db\exception\DbException
      */
     protected function _form_filter(array &$vo)
     {
@@ -91,11 +96,8 @@ class Upgrade extends Controller
     public function _form_result(bool $state)
     {
         if ($state) {
-            if (input('old_number', 100) <= input('number', 0)) {
-                $order = 'number asc,utime asc';
-            } else {
-                $order = 'number asc,utime desc';
-            }
+            $isasc = input('old_number', 0) <= input('number', 0);
+            $order = $isasc ? 'number asc,utime asc' : 'number asc,utime desc';
             foreach (BaseUserUpgrade::mk()->order($order)->select() as $number => $upgrade) {
                 $upgrade->save(['number' => $number]);
             }
diff --git a/app/data/model/BaseUserUpgrade.php b/app/data/model/BaseUserUpgrade.php
index c3545ada3..3c431009d 100644
--- a/app/data/model/BaseUserUpgrade.php
+++ b/app/data/model/BaseUserUpgrade.php
@@ -25,11 +25,13 @@ class BaseUserUpgrade extends Model
 
     /**
      * 获取最大级别数
-     * @return int
+     * @return integer
+     * @throws \think\db\exception\DbException
      */
     public static function maxNumber(): int
     {
-        return static::mk()->max('number', 0) + 1;
+        if (static::mk()->count() < 1) return 0;
+        return static::mk()->max('number') + 1;
     }
 
     /**
diff --git a/app/data/view/base/upgrade/form.html b/app/data/view/base/upgrade/form.html
index e4db149a2..5962ae3f6 100644
--- a/app/data/view/base/upgrade/form.html
+++ b/app/data/view/base/upgrade/form.html
@@ -27,7 +27,7 @@
 <form action="{:sysuri()}" class="layui-form layui-card" data-auto="true" method="post">
     <div class="layui-card-body padding-left-40">
 
-        <fieldset class="layui-form-item">
+        <fieldset class="layui-form-item layui-bg-gray">
             <legend><span class="layui-badge layui-bg-cyan">用户等级</span></legend>
             <div class="layui-form-item layui-row layui-col-space15">
                 <div class="layui-col-xs3 block relative">
@@ -49,7 +49,7 @@
 
         <div class="layui-row layui-col-space15">
             <div class="layui-col-xs6">
-                <fieldset class="layui-form-item">
+                <fieldset class="layui-form-item layui-bg-gray">
                     <legend><span class="layui-badge layui-bg-cyan">升级规则</span></legend>
                     <div class="layui-form-item notselect">
                         {php}$vo['upgrade_type'] = $vo['upgrade_type'] ?? 1;{/php}
@@ -63,7 +63,7 @@
                 </fieldset>
             </div>
             <div class="layui-col-xs6">
-                <fieldset class="layui-form-item">
+                <fieldset class="layui-form-item layui-bg-gray">
                     <legend><span class="layui-badge layui-bg-cyan">团队计数</span></legend>
                     <div class="layui-form-item notselect">
                         {php}$vo['upgrade_team'] = $vo['upgrade_team'] ?? 1;{/php}
@@ -78,7 +78,7 @@
             </div>
         </div>
 
-        <fieldset class="layui-form-item">
+        <fieldset class="layui-form-item layui-bg-gray">
             <legend><span class="layui-badge layui-bg-cyan">升级条件</span></legend>
             <div class="font-s13 relative">
                 <div>
@@ -143,7 +143,7 @@
             </div>
         </fieldset>
 
-        <fieldset class="layui-form-item">
+        <fieldset class="layui-form-item layui-bg-gray">
             <legend><span class="layui-badge layui-bg-cyan">奖利规则</span></legend>
             <div class="notselect relative">
                 {foreach $prizes as $prize}{if isset($vo.rebate_rule) && is_array($vo.rebate_rule) && isset($vo.rebate_rule[$prize.code])}