:root{--bg:#f7f6ef;--paper:#fffef9;--ink:#17352a;--muted:#5f746b;--green:#1e7650;--deep:#0f3c2b;--mint:#dceee2;--line:rgba(23,53,42,.14);--accent:#d88b4b;--shadow:0 18px 50px rgba(20,54,41,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.shell{width:min(1180px,calc(100% - 32px));margin:auto}.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:#fff;padding:10px 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