:root{--bg:#0b1020;--panel:#121a2f;--panel2:#18223b;--line:#293655;--text:#f4f7ff;--muted:#98a5c2;--primary:#6d8cff;--primary2:#8c6dff;--success:#42d392;--danger:#ff6b7d;--warning:#f5b942}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 20% 0,#17244a 0,transparent 35%),var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;min-height:100vh}a{color:#a9baff;text-decoration:none}button,input,select,textarea{font:inherit}.topbar{height:68px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1180px)/2));background:rgba(11,16,32,.86);backdrop-filter:blur(16px);position:sticky;top:0;z-index:10}.brand{font-size:19px;font-weight:800;color:#fff}.topbar nav{display:flex;align-items:center;gap:20px;font-size:14px}.container{max-width:1180px;margin:0 auto;padding:44px 24px 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dl{grid-template-columns:1fr}.section-head{align-items:flex-start;gap:14px}.section-head .button{white-space:nowrap}}