:root{--bg:#faf7f1;--panel:#fff;--ink:#2b2723;--ink-2:#6b6259;--ink-3:#9c9184;--line:#ebe2d5;--accent:#e85d3d;--accent-soft:#fdeee9;--green:#2f9e68;--green-soft:#e9f6ef;--amber:#c77e10;--amber-soft:#fbf1de;--red:#d64541;--red-soft:#fbeceb;--gray-soft:#f1ece3;--radius:16px}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}.nav{z-index:100;backdrop-filter:blur(8px);border-bottom:1px solid var(--line);background:#faf7f1eb;justify-content:space-between;align-items:center;height:64px;padding:0 40px;display:flex;position:sticky;top:0}.brand{align-items:baseline;gap:10px;font-size:18px;font-weight:700;display:flex}.brand 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