temp.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>备用联系</title>
<link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>

<div class="container">
  <h1>备用联系</h1>
  <form id="contact-form">
    <div class="form-group">
      <label for="apptoken">apptoken:</label>
      <input type="text" id="apptoken" name="apptoken" value="at" required>
    </div>
    <div class="form-group">
      <label for="topic-id">topic id:</label>
      <input type="text" id="topic-id" name="topic-id" value="12345" required>
    </div>
    <div class="form-group">
      <label for="message">要发送的消息:</label>
      <textarea id="message" name="message" rows="4" required></textarea>
    </div>
    <button type="submit">发送</button>
  </form>
</div>

<script src="script.js"></script>
</body>
</html>