:root{--ink:#1f2a2e;--muted:#5b6b70;--line:#e3e8e9;--bg:#fbfcfc;--accent:#2f7d6d;--accent-ink:#fff;--note:#f3f7f6}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:18px/1.65 Georgia,"Times New Roman",serif}
a{color:var(--accent)}
.wrap{max-width:720px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line);background:#fff}
header .wrap{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;flex-wrap:wrap;gap:8px}
.brand{font:700 20px/1 -apple-system,Segoe UI,Arial,sans-serif;color:var(--ink);text-decoration:none}
nav a{font:15px -apple-system,Segoe UI,Arial,sans-serif;color:var(--muted);text-decoration:none;margin-left:16px}
.disclosure{background:var(--note);border-bottom:1px solid var(--line);font:14px/1.5 -apple-system,Segoe UI,Arial,sans-serif;color:var(--muted)}
.disclosure .wrap{padding:8px 20px}
main{padding:36px 0 48px}
h1{font-size:34px;line-height:1.2;margin:0 0 12px}
h2{font-size:24px;margin:36px 0 8px}
.sub{color:var(--muted);font-size:19px;margin:0 0 24px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:20px;margin:16px 0}
.card h3{margin:0 0 6px;font-size:21px}
.meta{font:14px -apple-system,Segoe UI,Arial,sans-serif;color:var(--muted)}
table{width:100%;border-collapse:collapse;font-size:16px;margin:16px 0}
th,td{border:1px solid var(--line);padding:10px;text-align:left;vertical-align:top}
th{background:var(--note)}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:14px 22px;border-radius:8px;text-decoration:none;font:600 17px -apple-system,Segoe UI,Arial,sans-serif}
footer{border-top:1px solid var(--line);background:#fff;font:14px/1.6 -apple-system,Segoe UI,Arial,sans-serif;color:var(--muted)}
footer .wrap{padding:24px 20px}
footer a{color:var(--muted);margin-right:14px}
@media (max-width:520px){h1{font-size:28px}nav a{margin-left:10px}}