:root{--ink:#0a1826;--raised:#173045;--teal:#00c4ce;--text:#1c1c1e;--muted:#5b6670;--bg:#f2f2f7;--card:#fff}
@media (prefers-color-scheme:dark){:root{--text:#f2f2f7;--muted:#a1aab3;--bg:#000;--card:#1c1c1e}}
*{box-sizing:border-box}body{margin:0;font:16px/1.65 -apple-system,BlinkMacSystemFont,"PingFang TC","Hiragino Sans",sans-serif;background:var(--bg);color:var(--text)}
header{background:linear-gradient(135deg,var(--raised),var(--ink));color:#fff;padding:40px 16px 32px}
header .wrap,main{max-width:760px;margin:0 auto}header h1{margin:6px 0 4px;font-size:30px}header p{margin:0;color:#ffffffb3}
.eyebrow{color:var(--teal);font-weight:700;font-size:13px;letter-spacing:.04em}
nav{margin-top:16px;display:flex;gap:8px;flex-wrap:wrap}nav a{color:#fff;text-decoration:none;border:1px solid #ffffff40;border-radius:999px;padding:4px 12px;font-size:14px}
main{padding:24px 16px 48px}section{background:var(--card);border-radius:20px;padding:20px 22px;margin-bottom:20px}
h2{margin-top:0}h3{margin-bottom:4px}a{color:#00a3ad}ul{padding-left:20px}.muted{color:var(--muted);font-size:14px}