:root{--bg:#fbfbfd;--fg:#1c1c1e;--muted:#6b6b70;--line:#e5e5ea;--accent:#8a6fb0}@media(prefers-color-scheme:dark){:root{--bg:#171719;--fg:#f3f3f5;--muted:#a6a6ad;--line:#35353a;--accent:#c3a7ef}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Apple SD Gothic Neo","PingFang SC",sans-serif;-webkit-font-smoothing:antialiased}.wrap{max-width:720px;margin:0 auto;padding:48px 24px 80px}header{text-align:center;margin-bottom:18px}.brand{color:var(--fg);font-size:32px;font-weight:700;text-decoration:none;letter-spacing:-.5px}.brand span,a{color:var(--accent)}header p,.updated,footer{color:var(--muted);font-size:14px}nav{text-align:center;font-size:13px;margin:0 auto 30px}nav a{text-decoration:none;white-space:nowrap}.lead{border:1px solid var(--line);border-radius:14px;padding:20px 22px;font-size:17px;font-weight:600;text-align:center}h1{font-size:26px;margin:34px 0 12px}h2{font-size:19px;margin:30px 0 8px}h3{font-size:16px;margin:24px 0 4px}p,li{margin:10px 0}ul{padding-left:22px}.card{border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:18px 0}.button{display:inline-block;padding:10px 16px;border-radius:9px;background:var(--accent);color:#fff;font-weight:600;text-decoration:none}footer{border-top:1px solid var(--line);text-align:center;margin-top:50px;padding-top:24px}