产品详情页原价金额显示修改

src/app/(public)/product/_components/ProductInformation.tsx

@@ -143,7 +143,7 @@ export function ProductInformation({
     const { showToast } = useCustomToast();
     
     // 记录当前哪个选项组刚刚被点击（用于实现“点击组内全部可点”）
-    const [lastClickedOptionId, setLastClickedOptionId] = useState<number>(productOptions[0].id );
+    const [lastClickedOptionId, setLastClickedOptionId] = useState<number>(productOptions[0]?.id );
 
     const [productQty, setProductQty] = useState(1);
 
@@ -318,8 +318,8 @@ export function ProductInformation({
             throw new Error(`Unexpected: no variant matches selected ${JSON.stringify(selected)}`);
         }
         if(variant.priceIndices) {
-            totalLinePrice = Number(variant.priceIndices[0].min_price) * productQty;
-            totalNowPrice = Number(variant.priceIndices[0].regular_min_price) * productQty;
+            totalLinePrice = Number(variant.priceIndices[0].regular_min_price) * productQty;
+            totalNowPrice = Number(variant.priceIndices[0].min_price) * productQty;
         }
         if(totalLinePrice !== totalNowPrice) {
             save = totalLinePrice - totalNowPrice;