body{font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;max-width:720px;margin:0 auto;padding:32px 20px;color:#1c1c1e;background:#fff}
h1{font-size:28px}h2{font-size:19px;margin-top:28px}a{color:#2563eb}footer{margin-top:40px;color:#6b7280;font-size:14px}
@media (prefers-color-scheme:dark){body{background:#000;color:#f2f2f7}footer{color:#9ca3af}a{color:#60a5fa}}