marketing-geo-site-builder/website/src/pages/index.astro

---
/**
 * Root index page - detects browser language and redirects.
 * Uses client-side JS for language detection.
 */
---
<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>未来飞马 Fmode - Enterprise AI Harnessing Platform</title>
  <meta name="description" content="未来飞马（Fmode）是全球领先的企业级驾驭工程工作站。通过Software 3.0范式与双Harness体系，帮助企业安全、稳定、低成本地驾驭AI能力。" />
  <script>
    // Detect browser language and redirect
    const lang = navigator.language || navigator.userLanguage || 'zh';
    const targetLang = lang.startsWith('zh') ? 'zh' : 'en';
    window.location.replace('/' + targetLang + '/');
  </script>
  <noscript>
    <meta http-equiv="refresh" content="0;url=/zh/" />
  </noscript>
</head>
<body>
  <p>Redirecting... <a href="/zh/">中文</a> | <a href="/en/">English</a></p>
</body>
</html>