feat: AlinPay 充值改为 iframe 内嵌弹窗，不再跳转外链

pages/recharge.vue

@@ -236,6 +236,17 @@
     </view>
     <view class="mb60"></view>
 
+    <!-- AlinPay 内嵌支付弹窗 -->
+    <view class="alin-overlay" v-if="alinPay.visible" @click.self="closeAlinPay">
+      <view class="alin-pay-box">
+        <view class="alin-pay-header">
+          <text class="alin-pay-title">Thanh toán ngân hàng</text>
+          <view class="epay-qr-close" @click="closeAlinPay">×</view>
+        </view>
+        <iframe v-if="alinPay.url" :src="alinPay.url" class="alin-iframe" frameborder="0" allow="payment"></iframe>
+      </view>
+    </view>
+
     <!-- USDT 内嵌二维码弹窗 -->
     <u-popup :show="epayQr.visible" mode="center" round="10" :closeOnClickOverlay="false" @close="closeEpayQr">
       <view class="epay-qr-box">
@@ -362,6 +373,10 @@ export default {
       },
       _bankPollTimer: null,
       _bankCountdownTimer: null,
+      alinPay: {
+        visible: false,
+        url: "",
+      },
     };
   },
   computed: {
@@ -510,13 +525,8 @@ export default {
         .then((res) => {
           const d = res.Data || {};
           if (d.status == 1 && d.url) {
-            const o = navigator.userAgent;
-            const isiOS = !!o.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/);
-            if (isiOS) {
-              window.location.href = d.url;
-            } else {
-              window.open(d.url, "_blank");
-            }
+            this.alinPay.url = d.url;
+            this.alinPay.visible = true;
           } else {
             this.$toast({
               message: d.message || '充值失败',
@@ -643,6 +653,10 @@ export default {
         },
       });
     },
+    closeAlinPay() {
+      this.alinPay.visible = false;
+      this.alinPay.url = "";
+    },
     closeEpayQr() {
       this.epayQr.visible = false;
       this.stopEpayTimers();
@@ -956,4 +970,39 @@ export default {
   margin-top: 14rpx;
   opacity: 0.85;
 }
+.alin-overlay {
+  position: fixed;
+  top: 0; left: 0; right: 0; bottom: 0;
+  z-index: 9999;
+  background: rgba(0,0,0,0.6);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+.alin-pay-box {
+  width: 92vw;
+  height: 85vh;
+  background: #fff;
+  border-radius: 10px;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+}
+.alin-pay-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 10px 15px;
+  background: #1a1a2e;
+}
+.alin-pay-title {
+  color: #f4c46f;
+  font-size: 16px;
+  font-weight: bold;
+}
+.alin-iframe {
+  flex: 1;
+  width: 100%;
+  border: none;
+}
 </style>