:root{--bg:#151A23;--p1:#1B2130;--p2:#202738;--p3:#252D40;--gold:#F1DCA3;--gold2:#E3C98F;--text:#E8ECF5;--muted:#B8C0D3;--soft:#8F98AD;--line:rgba(241,220,163,.14);--shadow:0 14px 36px rgba(0,0,0,.28)}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--bg)}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}img,svg,video{max-width:100%}a{color:inherit}.site-header{position:sticky;top:0;z-index:9999;width:100%;background:#151A23;box-shadow:0 8px 24px rgba(0,0,0,.22);backdrop-filter:blur(10px)}.header-inner{max-width:1280px;min-height:74px;margin:0 auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}.site-logo,.drawer-logo,.footer-logo{display:inline-flex;align-items:center;text-decoration:none;flex:0 0 auto}.site-logo img,.drawer-logo img,.footer-logo 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@media(max-width:460px){.site-logo img{max-width:118px;height:34px}.header-reg-btn{min-width:70px;padding:0 12px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card{padding:16px}.topic-card .card-media{height:120px}.footer-grid{grid-template-columns:1fr}.hero,.section,.article-hero{padding-left:16px;padding-right:16px}.content-media,.brand-media{height:190px}}