body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:#111;background:#fff}
main{max-width:640px;margin:0 auto;padding:48px 20px 80px}
h1{font-size:1.6rem;margin:0 0 8px}
h2{font-size:1.1rem;margin:32px 0 8px}
p,li{margin:0 0 12px}
a{color:#0b7a3b}
.back{display:inline-block;margin-bottom:24px;font-size:.9rem}
.updated{color:#555;font-size:.9rem;margin-bottom:24px}