Merge branch 'feature/wufan/20210713/refactore-placeholder' into dev

src/modules/root/Menu.less

@@ -124,7 +124,7 @@
         color: @active-color;
 
         .ant-menu-item-selected {
-          color: #fff;
+          color: @active-color;
           .listType {
             background: @active-color;
           }
@@ -267,9 +267,11 @@
     left: 74px;
   }
 }
-
+.ant-menu-submenu-open.ant-menu-submenu-inline > .ant-menu-submenu-title > .ant-menu-submenu-arrow {
+  color: #2966FF;
+}
 .ant-menu:not(.ant-menu-horizontal) .ant-menu-item-selected {
-  background: @active-color !important;
+  background: rgba(41, 102, 255, .1) !important;
 }
 .ant-menu.ant-menu-dark,
 .ant-menu-dark .ant-menu-sub,