:root{--dark:#0b111b;--dark2:#121b2a;--red:#e8303f;--blue:#1f6fae;--light:#f5f7fb;--text:#1d2430;--muted:#647084;--white:#fff;--radius:24px;--shadow:0 18px 45px rgba(16,23,35,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--text);background:var(--white);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:15px 6vw;background:rgba(11,17,27,.88);backdrop-filter:blur(16px);color:var(--white);box-shadow:0 10px 35px rgba(0,0,0,.2)}.brand{font-weight:950;text-transform:uppercase;letter-spacing:.04em;line-height:1}.brand-main{display:block;font-size:1.05rem}.brand-sub{display:block;color:var(--red);font-size:.9rem}.main-nav{display:flex;gap:25px;align-items:center;font-weight:800}.main-nav 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