:root{color-scheme:dark;--bg:#101411;--panel:#171d18;--line:#30382d;--muted:#929d8d;--text:#edf1df;--accent:#d2f68b}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button,input,a{-webkit-tap-highlight-color:transparent}button,a,input{outline-offset:5px}button:focus-visible,a:focus-visible,input:focus-visible,canvas:focus-visible{outline:2px solid var(--accent)}button{font:inherit;color:inherit;cursor:pointer}a{color:inherit;text-decoration:none}header,main,footer{max-width:1440px;margin:auto}header{height:100px;display:flex;align-items:center;border-bottom:1px solid var(--line);padding:0 56px;gap:32px}.brand{display:flex;align-items:center;gap:13px;font-size:21px;font-weight:bold}.brand-mark{display:grid;place-items:center;border:1px solid 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