:root{--navy:#071727;--navy2:#0b2235;--gold:#e2a541;--gold2:#f4c871;--ink:#152536;--muted:#667586;--line:#dfe7ed;--paper:#f5f3ee;--white:#fff;--green:#39c792}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:#fff}a{text-decoration:none;color:inherit}.nav{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 max(5vw,24px);position:sticky;top:0;background:#071727f2;backdrop-filter:blur(12px);color:#fff;z-index:20;border-bottom:1px solid #ffffff16}.logo{display:flex;align-items:center;gap:11px}.logo>span{width:39px;height:39px;border:1px solid #e2a54166;border-radius:50%;display:grid;place-items:center;color:var(--gold2);font-size:19px;font-weight:800}.logo b{display:block;letter-spacing:2px}.logo small{display:block;color:#7f95a6;font-size:7px;letter-spacing:1.4px;margin-top:2px}.nav nav{display:flex;gap:34px;color:#aebbc5;font-size:13px}.nav nav 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