style:footer样式修复

src/pages/Index/Index.vue

@@ -1062,6 +1062,7 @@ watch(
     position: relative;
     bottom: 0;
     margin-top: auto;
+    background: #f5f7fa;
 
     > *:first-child {
       margin-right: auto;
@@ -1101,7 +1102,7 @@ watch(
         text-overflow: ellipsis;
         &.Info {
           color: #333;
-          background-color: #f5f5f5;
+          background-color: #ddd;
         }
         &.Warn {
           color: #fa9d3b;