:root{color-scheme:light;font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#202c36;background:#f5f7f8}*{box-sizing:border-box}body{margin:0}main{max-width:780px;margin:48px auto;padding:44px;background:white;border:1px solid #dce3e8;border-radius:12px}h1{font-size:2rem;line-height:1.3;margin:12px 0 24px}h2{font-size:1.2rem;margin:32px 0 10px}p{line-height:1.9;margin:12px 0}.lead{font-size:1.1rem}.eyebrow,footer{color:#566671;font-size:.9rem}a{color:#185b8b;text-underline-offset:3px}a:focus-visible{outline:3px solid #84bee5;outline-offset:4px}code{word-break:break-word}nav{display:flex;flex-wrap:wrap;gap:16px;border-top:1px solid #dce3e8;margin-top:32px;padding-top:24px}footer{margin-top:32px}@media(max-width:600px){main{margin:0;padding:26px 20px;min-height:100vh;border:0;border-radius:0}h1{font-size:1.7rem}}