<!doctype html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <title>时间同步</title> </head> <body> <div class="card"> <div class="icon">🚧</div> <h1>页面3</h1> <h1>敬请期待</h1> <p class="subtitle">该功能正在开发中，敬请期待...</p> </div> </body> </html>
