:root{--navy:#0b2345;--blue:#174f9b;--gold:#d8a548;--ink:#172234;--muted:#627087;--line:#dfe6ef;--soft:#f4f7fb;--green:#118161}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;padding-bottom:80px}a{text-decoration:none;color:inherit}.wrap{width:min(1160px,calc(100% - 40px));margin:auto}.top{background:#071a33;color:#cdd8e7;font-size:13px}.top .wrap{display:flex;justify-content:space-between;padding:6px 0}.header{position:sticky;top:0;z-index:20;background:#fffffff2;backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}nav{height:70px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-weight:900;color:var(--navy)}.mark{width:34px;height:34px;border:8px solid 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