style: 菜单圆角卡片

template/admin/src/theme/element.scss

@@ -209,6 +209,14 @@
   .el-submenu .el-menu-item {
     padding: 0 30px !important;
   }
+  .el-submenu .el-submenu {
+    .el-submenu__title {
+      padding-left: 30px !important;
+    }
+    .el-menu-item {
+      padding-left: 40px !important;
+    }
+  }
 }
 
 #add-is-active {