refactor: migrate to Tencent Cloud backend

miniprogram/pages/login/login.wxss

@@ -46,6 +46,27 @@
   border: none;
 }
 
+.phone-btn {
+  display: block;
+  width: 100%;
+  padding: 28rpx;
+  background: #ffffff;
+  color: #E6508C;
+  border: 2rpx solid #E6508C;
+  border-radius: 20rpx;
+  font-size: 30rpx;
+  text-align: center;
+  margin-top: 24rpx;
+}
+
+.phone-btn::after {
+  border: none;
+}
+
+.disabled-phone-btn {
+  display: none;
+}
+
 .agreement {
   text-align: center;
   font-size: 24rpx;