:root{--bg:#faf8f5;--fg:#1d1b19;--mute:#6b665f;--line:#e4dfd8;--accent:#c8402f}
@media (prefers-color-scheme:dark){:root{--bg:#141312;--fg:#ece8e2;--mute:#9a948b;--line:#2c2a27;--accent:#e2604e}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue",sans-serif}
main{max-width:640px;margin:0 auto;padding:56px 20px 80px}
h1{font-size:28px;line-height:1.25;margin:0 0 4px}h2{font-size:17px;margin:32px 0 6px}
.meta{color:var(--mute);font-size:14px;margin:0 0 24px}a{color:var(--accent)}
nav{display:flex;gap:16px;font-size:14px;margin-bottom:40px}nav a{color:var(--mute);text-decoration:none}
hr{border:0;border-top:1px solid var(--line);margin:48px 0}p,li{margin:0 0 10px}