:root{--bg:#080d18;--bg2:#0d1423;--surface:rgba(18,27,45,.8);--surface-solid:#111a2b;--line:rgba(163,184,217,.15);--line-strong:rgba(163,184,217,.25);--text:#f4f7fb;--muted:#8694aa;--green:#55d6a5;--green-deep:#1ca978;--red:#ff6e82;--violet:#8877ff}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;min-height:100vh;color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(ellipse 70% 50% at 12% -14%,rgba(91,90,210,.28),transparent 72%),radial-gradient(ellipse 55% 40% at 94% 0,rgba(34,171,142,.13),transparent 70%),var(--bg);letter-spacing:-.01em}body:before{content:"";position:fixed;z-index:-1;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.012) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.012) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(to bottom,black,transparent 68%)}.topbar,header{min-height:113px;padding:27px 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