:root{--paper:#f5f0e7;--ink:#19332f;--muted:#6f7b76;--line:rgba(25,51,47,.14);--green:#173f36;--mint:#dce9e1;--orange:#bc704e;--white:#fffdf9}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 85% 0,rgba(55,125,106,.12),transparent 32%),radial-gradient(circle at 0 100%,rgba(188,112,78,.1),transparent 35%),var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}.hidden{display:none!important}.site-head{height:72px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1140px)/2));background:rgba(245,240,231,.84);backdrop-filter:blur(15px);position:sticky;top:0;z-index:10}.brand{text-decoration:none;color:inherit;display:flex;align-items:center;gap:12px}.brand 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