:root{color-scheme:light dark;--ink:#273831;--muted:#67766d;--accent:#287b67;--line:#dce5df;--paper:#fff;--back:#f7f9f5}*{box-sizing:border-box}body{margin:0;background:var(--back);color:var(--ink);font:16px/1.85 system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}header,main,footer{max-width:900px;margin:auto;padding:22px 28px}header{display:flex;gap:20px;flex-wrap:wrap;align-items:center;border-bottom:1px solid var(--line)}header a:first-child{font-weight:650;margin-right:auto}a{color:var(--accent);text-underline-offset:4px}header a{text-decoration:none}main{padding-top:30px;overflow-wrap:anywhere}h1{font-size:clamp(26px,4vw,34px);line-height:1.4;margin:0 0 22px}h2{font-size:21px;line-height:1.5;margin:32px 0 10px}h3{font-size:18px;margin-top:26px}p,ul,ol{margin:10px 0 18px}li{margin:7px 0}code{font:14px/1.6 ui-monospace,monospace;background:var(--paper);padding:2px 4px;border-radius:4px}pre{overflow:auto;background:var(--paper);padding:16px;border:1px solid var(--line);border-radius:10px}pre code{padding:0}hr{border:0;border-top:1px solid var(--line);margin:40px 0}footer{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-bottom:40px}a:focus-visible{outline:2px solid var(--accent);outline-offset:4px}@media(prefers-color-scheme:dark){:root{--ink:#e2e9e4;--muted:#a8b5ae;--accent:#8fcbb6;--line:#37433c;--paper:#202a24;--back:#18201b}}@media(max-width:500px){header,main,footer{padding-left:20px;padding-right:20px}body{font-size:15px}header{gap:14px}}