:root{--bg:#000;--surface:#181818;--surface2:#202020;--fg:#fff;--soft:#f5f5f5;--muted:#7d7d7d;--steel:#969696;--graphite:#494949;--accent:#ffc000;--accent-dark:#917300;--gold:#ffce3e;--cyan:#29abe2;--ghost:#1eaedb;--border:#ffffff80;--line:#202020;--xyl-font-display:"Arial Narrow","Helvetica Neue Condensed","Roboto Condensed",Arial,var(--font-zh);--font-zh:var(--font-noto-sans-sc),"Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;--xyl-font-body:"Helvetica Neue",Arial,var(--font-zh);--container:1200px;--pad:clamp(20px,4vw,56px);--hero:clamp(52px,10vw,112px);--h2:clamp(38px,7vw,80px);--body:clamp(15px,1.5vw,18px)}body.modal-open{overflow:hidden}button,input,select{font:inherit}button{cursor:pointer}.topbar{z-index:50;pointer-events:none;background:linear-gradient(#000000db,#0000004d 62%,#0000);grid-template-columns:1fr auto 1fr;align-items:center;height:72px;padding:0 clamp(16px,3vw,40px);display:grid;position:fixed;inset:0 0 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