:root{--bg:#f7f5ef;--text:#30312e;--muted:#81817a;--accent:#be6244;--line:#deddd5;--pill:#eeece4;--veil:247,245,239;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,'Segoe UI','Microsoft YaHei',sans-serif;transition:background .3s,color .3s}body.dark{--bg:#202220;--text:#efeee7;--muted:#a4a69d;--accent:#e39876;--line:#3b3e37;--pill:#2d302b;--veil:32,34,32;color-scheme:dark}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:6px}header{height:96px;padding:0 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