:root{--bg:#fbfaff;--fg:#1c1b22;--muted:#5d5a6b;--card:#fff;--line:#e6e3f0;--accent:#5a4cec;--accent2:#ec4f99}
@media (prefers-color-scheme:dark){:root{--bg:#121118;--fg:#f2f0f8;--muted:#a9a5b8;--card:#1c1b24;--line:#2d2b38;--accent:#8a7fff;--accent2:#ff6fb0}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Helvetica Neue","PingFang TC",sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 20px 64px}
header{display:flex;align-items:center;gap:16px;margin-bottom:32px}
header img{width:72px;height:72px;border-radius:16px}
h1{font-size:34px;line-height:1.15;margin:0}h2{font-size:22px;margin:36px 0 8px}
p,li{color:var(--muted)}strong{color:var(--fg)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:14px 0}
a{color:var(--accent)}nav{display:flex;gap:18px;margin-top:6px;font-size:15px}
.sample{font-size:22px;letter-spacing:.02em;color:var(--fg)}
footer{margin-top:48px;font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:18px}