fix: 调整微信登陆窗口UI

src/components/Auth/WechatRegister.js

@@ -266,22 +266,18 @@ export default function WechatRegister() {
             >
                 {/* 灰色二维码底图 - 始终显示 */}
                 {wechatStatus === WECHAT_STATUS.WAITING ? (
-                    <Box position="relative" width="100%" height="100%">
+                    <Box position="relative" width="96px" height="96px">
                         <iframe
                             src={wechatAuthUrl}
-                            // width="100%"
-                            // height="100%"
-                            w={40} h={40}
-                            style={{ borderRadius: '8px' }}
+                            width="96"
+                            height="96"
+                            style={{ borderRadius: '8px', border: 'none' }}
                         />
                     </Box>
                 ) : (
                     <Icon as={FaQrcode} w={24} h={24} color="gray.300" />
                 )}
 
-
-                <Icon as={FaQrcode} w={24} h={24} color="gray.300" />
-
                 {/* 加载动画 */}
                 {isLoading && (
                     <Box