diff --git a/pages/order/confirm-order.vue b/pages/order/confirm-order.vue
index a1f555b..0dd7524 100644
--- a/pages/order/confirm-order.vue
+++ b/pages/order/confirm-order.vue
@@ -105,8 +105,12 @@
 		computed: {
 			total(){
 				return function(num, price){
+					let new_num = Number(num);
+					if(Object.is(new_num, NaN)){
+						return 0;
+					};
 					let big_price = new bigc(Number(price));
-					big_price = big_price.times(Number(num));
+					big_price = big_price.times(new_num);
 					return big_price.round(2, 0).toString();
 				}
 			},
diff --git a/pages/order/index.vue b/pages/order/index.vue
index 05c05cc..0fe4510 100644
--- a/pages/order/index.vue
+++ b/pages/order/index.vue
@@ -337,6 +337,7 @@
 						color: #FFFFFF;
 						margin: 0rpx 20rpx 0rpx 20rpx;
 						border: none;
+						line-height: 60rpx;
 					}
 				}
 			}