fix style

 .detail-banner {
     position: relative;
     width: 100%rpx;
+    background-color: #f4f4f4;
 }
 
 .detail-banner .swiper-wrapper {

@@ -18,8 +18,8 @@
     </view>
     <view class="name-price">
         <text class="name item-left">{{item.product_name}}</text>
-        <view class="price item-right">
-            <text class="sale-price red">¥ {{helper.round(item.sales_price)}}</text>
+        <view class="price item-right red">
+            <text class="sale-price">¥ {{helper.round(item.sales_price)}}</text>
             <text wx:if="{{item.mark_price}}" class="mark-price">¥ {{helper.round(item.mark_price)}}</text>
         </view>
     </view>

@@ -5,6 +5,11 @@ import {parse, stringify} from '../vendors/query-stringify';
 
 const MINI_APP_DOMAIN = 'miniapp.yohobuy.com';
 
+const OPEN_BY_TYPE = {
+    GO_LIST: 'go.list',
+    GO_DETAIL: 'go.productDetail'
+};
+
 const pageNameMap = {};
 
 for (let i in rules) {
@@ -64,17 +69,14 @@ global.router = {
             });
         }
 
-        let openBy = JSON.parse(qs['openby:yohobuy'] || {});
+        let openBy = JSON.parse(qs['openby:yohobuy'] || '{}');
 
         if (openBy.action) {
-            const GO_LIST = 'go.list';
-            const GO_DETAIL = 'go.productDetail';
-
             switch (openBy.action) {
-                case GO_LIST:
+                case OPEN_BY_TYPE.GO_LIST:
                     this.go('productList', openBy.params);
                     break;
-                case GO_DETAIL:
+                case OPEN_BY_TYPE.GO_DETAIL:
                     this.go('productDetail', {productSkn: openBy.params.product_skn});
                     break;
             }