:root{--bg:#07111f;--card:#0e1b2e;--muted:#9fb0c7;--text:#eef6ff;--brand:#f48120;--brand2:#fbbf24;--line:rgba(255,255,255,.1);--green:#34d399;--blue:#60a5fa;--purple:#a78bfa;--danger:#f87171}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at 15% 5%,rgba(244,129,32,.22),transparent 28%),radial-gradient(circle at 85% 12%,rgba(96,165,250,.18),transparent 26%),linear-gradient(180deg,#07111f 0%,#091629 55%,#07111f 100%);color:var(--text);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%}.container{width:min(1120px,calc(100% - 32px));margin:auto}.nav{position:sticky;top:0;z-index:20;background:rgba(7,17,31,.75);backdrop-filter:blur(18px);border-bottom:1px solid 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