bugfix：处理购买弹窗布局

pages/claimCloudPhone/purchase.vue

@@ -291,7 +291,7 @@ export default {
   .payment-container {
     border-radius: 10px 10px 0 0;
     padding: 16px;
-    height: 66vh;
+    margin: 0 16px;
     display: flex;
     flex-direction: column;
     background: #f4f6f8;