:root{--sea:#009eaa;--deep:#053047;--turq:#18d4d4;--sand:#f7efe2;--white:#fff;--muted:#5d7380;--shadow:0 24px 70px rgba(5,48,71,.18);--radius:28px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Montserrat,system-ui,sans-serif;color:var(--deep);background:#f7fbfc}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}.site-header{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px clamp(18px,4vw,60px);background:rgba(255,255,255,.84);backdrop-filter:blur(16px);box-shadow:0 12px 34px rgba(5,48,71,.08)}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand img{width:54px;height:54px;border-radius:16px;object-fit:cover}.brand span{line-height:1.05}.nav{display:flex;gap:24px;font-size:.92rem;font-weight:700}.nav a{position:relative}.nav 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