:root{--bg:#06111c;--panel:#0b1d2b;--line:rgba(92,222,255,.17);--cyan:#51e0ff;--text:#ebfaff;--muted:#91aebb;--amber:#ffc95c}*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:"Microsoft YaHei",system-ui,sans-serif;background:radial-gradient(circle at 80% -10%,#153f55 0,transparent 35%),var(--bg);color:var(--text)}body:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(81,224,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(81,224,255,.025) 1px,transparent 1px);background-size:30px 30px}.shell{position:relative;max-width:1440px;margin:auto;padding:20px 24px 42px}header{display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:13px}.brand>span{display:grid;place-items:center;width:45px;height:45px;border:1px solid var(--line);border-radius:13px;color:var(--cyan);font-size:27px;background:rgba(81,224,255,.06)}small,.eyebrow{font:11px 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