优化交易完成页

src/pages/order/detail.vue

@@ -146,7 +146,13 @@ export default {
   },
   onLoad(options) {
     this.orderId = options.order_id || '';
-    if (this.orderId) {
+    // 优先从缓存读取（订单列表/交易完成页跳转时已存入）
+    const cached = uni.getStorageSync('__order_detail_cache');
+    if (cached) {
+      this.order = cached;
+      this.orderId = cached.order_id || this.orderId;
+      uni.removeStorageSync('__order_detail_cache');
+    } else if (this.orderId) {
       this.fetchOrder();
     }
   },

src/pages/order/order.vue

@@ -335,6 +335,7 @@ export default {
     },
 
     goToDetail(order) {
+      uni.setStorageSync('__order_detail_cache', order);
       uni.navigateTo({ url: `/pages/order/detail?order_id=${order.order_id}` });
     },
     handlePay(order) {