diff --git a/pages/petrol/orderConfirm.vue b/pages/petrol/orderConfirm.vue
index 7699cf7..fa992da 100644
--- a/pages/petrol/orderConfirm.vue
+++ b/pages/petrol/orderConfirm.vue
@@ -83,10 +83,22 @@ export default {
 			uni.redirectTo({ url: '/pages/index/login?redirect=' + encodeURIComponent('/pages/venue/detail?id=851219003520709&type=2') })
 			return
 		}
+		this.loadUpSdk() // xuchao: 运行时注入云闪付 SDK（构建模板不可靠，见 loadUpSdk 注释）
 		if (options.orderNo) this.orderNo = options.orderNo
 		this.initFromServer()
 	},
 	methods: {
+		// xuchao: upsdk 运行时注入。不能依赖 index.html 静态标签——HBuilderX 命令行构建的 H5 模板
+		//         不受项目根 index.html 控制（产物会丢标签），与人脸 SDK 同款动态加载兜底。
+		loadUpSdk() {
+			if (typeof window !== 'undefined' && window.upsdk) return
+			if (typeof document === 'undefined') return
+			if (document.querySelector('script[data-upsdk]')) return
+			const s = document.createElement('script')
+			s.src = 'https://open.95516.com/s/open/js/upsdk.js'
+			s.setAttribute('data-upsdk', '1')
+			document.head.appendChild(s)
+		},
 		// xuchao: 价格展示以服务端 latest 为准（测试期 0.01）；已有待支付单自动续用；已发券直接跳券详情
 		initFromServer() {
 			this.$u.api.voucherLatest({ phone: this.phone }).then(res => {
@@ -135,26 +147,31 @@ export default {
 		},
 		// xuchao: 云闪付控件唤起，交互与湘工惠商城一致（xghmall ordersure.vue:195-229 同型）
 		launchUnionPay(tn) {
-			if (typeof window === 'undefined' || !window.upsdk) {
-				this.submitting = false
-				uni.showToast({ title: '支付组件未就绪，请在云闪付内重进页面', icon: 'none' })
-				return
+			this.loadUpSdk()
+			const tryPay = (retries) => {
+				if (typeof window !== 'undefined' && window.upsdk) {
+					window.upsdk.pluginReady(() => {
+						window.upsdk.pay({
+							tn: tn,
+							success: () => {
+								uni.redirectTo({ url: '/pages/petrol/voucherDetail?orderNo=' + this.orderNo })
+							},
+							fail: () => {
+								this.submitting = false
+								uni.showToast({ title: '支付未完成，可在门店页继续支付', icon: 'none' })
+							}
+						})
+					})
+					// 控件无异步结果时兜底：3 秒后恢复按钮（支付成功路径以回跳/轮询为准）
+					setTimeout(() => { this.submitting = false }, 3000)
+				} else if (retries > 0) {
+					setTimeout(() => tryPay(retries - 1), 500)
+				} else {
+					this.submitting = false
+					uni.showToast({ title: '支付组件加载失败，请在云闪付内重进页面', icon: 'none' })
+				}
 			}
-			const orderNo = this.orderNo
-			window.upsdk.pluginReady(() => {
-				window.upsdk.pay({
-					tn: tn,
-					success: () => {
-						uni.redirectTo({ url: '/pages/petrol/voucherDetail?orderNo=' + orderNo })
-					},
-					fail: () => {
-						this.submitting = false
-						uni.showToast({ title: '支付未完成，可在门店页继续支付', icon: 'none' })
-					}
-				})
-			})
-			// 控件无异步结果时兜底：3 秒后恢复按钮（支付成功路径以回跳/轮询为准）
-			setTimeout(() => { this.submitting = false }, 3000)
+			tryPay(8) // SDK 注入后最多等 4 秒
 		},
 		goBack() {
 			const pages = getCurrentPages()