:root{--bg:#E8F3F4;--deep:#D4E8EA;--surface:#F7FCFC;--soft:#DCECEE;--title:#0A3D4A;--text:#1E4A54;--muted:#4A737C;--aux:#7A8F93;--lake:#1A6B7A;--green:#2E9A8F;--night:#08222A;--gold:#D4B46A;--white:#F2F7F8;--mist:#7DB8B0;--line:rgba(10,61,74,.16);--accent:rgba(46,154,143,.40);--shadow:0 16px 36px rgba(8,34,42,.10);--radius:16px;--header-space:130px}*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.72 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",Arial,sans-serif;overflow-x:hidden}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{max-width:100%;display:block}.shell{width:min(1220px,calc(100% - 32px));margin:0 auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:999;background:var(--night);color:var(--white);padding:10px 14px;border-radius:10px}.skip-link:focus{top:8px}.site-header{position:fixed;inset:0 0 auto 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