fix: 修复购物车底部按钮因底部tabbar重构样式错乱问题

pages/order_addcart/order_addcart.vue

@@ -1246,7 +1246,7 @@ const toMerchant = (obj) => {
 
 .shoppingCart {
   // .labelNav
-  padding-bottom: 200rpx;
+  padding-bottom: 300rpx;
   .labelNav {
     position: sticky;
     height: 178rpx;
@@ -1519,7 +1519,7 @@ const toMerchant = (obj) => {
   padding: 0 24rpx;
   box-sizing: border-box;
   border-top: 1rpx solid #eee;
-  bottom: 0;
+  bottom: 160rpx;
 
 
   .checkAll {