:root{--brand-900:#071a33;--brand-800:#0a2a52;--brand-700:#074077;--brand-600:#0f63a1;--brand-500:#1f7fc8;--brand-400:#38a1d9;--bg:#f7f9fc;--surface:#ffffff;--surface-2:#f2f6ff;--text:#0b1220;--muted:#5b6b82;--border:rgba(11,18,32,.1);--shadow:0 20px 45px rgba(11,18,32,.1);--shadow-soft:0 12px 30px rgba(11,18,32,.08);--radius:16px;--radius-lg:24px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Inter,Arial,Noto Sans,sans-serif;color:var(--text);background:radial-gradient(1200px 500px at 50% -120px,rgba(56,161,217,.22),transparent 55%),radial-gradient(900px 420px at 88% 0%,rgba(15,99,161,.12),transparent 60%),radial-gradient(900px 420px at 12% 10%,rgba(31,127,200,.1),transparent 60%),var(--bg)}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:1140px;margin:0 auto;padding:0 20px}.nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) 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