样式优化

src/components/pay/index.vue

@@ -25,10 +25,10 @@
       </div>
       <div v-if="payType !== '余额'" style="text-align: center;">
         <QrCode :text="payCodeUrl" :width="170" style="margin: 0 auto;" />
-        <div style="color: var(--v-error-base);">扫码支付时请勿离开</div>
+        <div v-if="payType === '余额' || payCodeUrl" style="color: var(--v-error-base);">扫码支付时请勿离开</div>
       </div>
       <div class="mt-10" style="text-align: center;">
-        <v-btn class="buttons" color="primary" :loading="payLoading" @click="paySubmit">{{ payType === '余额' ? '确认' : '支付完成' }}</v-btn>
+        <v-btn v-if="payType === '余额' || payCodeUrl" class="buttons" color="primary" :loading="payLoading" @click="paySubmit">{{ payType === '余额' ? '确认' : '支付完成' }}</v-btn>
       </div>
     </div>
   </div>