:root{--paper: #fbfbfa;--surface: #ffffff;--ink: #171b1c;--muted: #666f72;--faint: #969b9c;--line: #e3e1db;--green: #1f6d52;--green-quiet: #e7f2ed;--gold: #b28a3a;--gold-quiet: #f7efdf;--cool: #eef4f6;--radius: 8px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(90deg,rgba(23,27,28,.035) 1px,transparent 1px) 0 0 / 84px 84px,var(--paper);color:var(--ink);font-family:Microsoft YaHei,PingFang SC,Noto Sans SC,system-ui,sans-serif;line-height:1.7}a{color:inherit;text-decoration:none}button,input{font:inherit}.site-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:60px;padding:0 max(18px,calc((100vw - 980px)/2));background:#fbfbfae0;border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.site-brand{font-size:15px;font-weight:800;white-space:nowrap}.site-nav{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px}.site-nav a:hover,.site-footer 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