:root{--bg: #fffdf5;--surface: #ffffff;--text: #334155;--title: #0f172a;--muted: #64748b;--border: #e2e8f0;--brand: #1e7ab5;--brand-strong: #186498;--teal: #14b8a6}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.container{width:min(1100px,calc(100% - 2rem));margin:0 auto}.site-header{position:sticky;top:0;z-index:10;background:#ffffffd1;backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.header-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand{display:inline-flex;align-items:center;gap:.65rem}.logo{width:44px;height:44px}.brand-text{font-size:1.55rem;color:var(--title);letter-spacing:-.02em}.brand-text span{font-weight:800}.header-nav{display:flex;align-items:center;gap:1.1rem;font-weight:600;color:var(--muted);font-size:.95rem}.header-nav a{padding:.2rem 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