:root{--navy:#082f55;--blue:#0f7dbb;--cyan:#6dd5ed;--steel:#e8eef3;--ink:#17202a;--muted:#667085;--orange:#f36c21;--white:#fff;--shadow:0 24px 70px rgba(8,47,85,.18);--radius:26px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.6}.wrap{width:min(1120px,92%);margin:auto}.site-header{position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);z-index:10;border-bottom:1px solid #e9eef3}.nav{height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--navy);font-weight:800;line-height:1.05}.brand-mark{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;letter-spacing:.5px}.menu{display:flex;gap:22px;align-items:center}.menu 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