*{box-sizing:border-box;margin:0;padding:0;}:root{--bg:#f4f6fb;--card:#ffffff;--primary:#2563eb;--primary-dark:#1d4ed8;--text:#1e293b;--muted:#64748b;--border:#e2e8f0;--success:#059669;--error:#dc2626;--radius:12px;--shadow:0 1px 3px rgba(0,0,0,0.08),0 4px 14px rgba(0,0,0,0.06);}body{font-family:'Segoe UI',Tahoma,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column;}.skip-link{position:absolute;left:-9999px;top:-9999px;z-index:100;background:var(--primary);color:#fff;padding:10px 16px;border-radius:6px;text-decoration:none;font-weight:700;}.skip-link:focus{left:12px;top:12px;}header{background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:10;}.header-inner{max-width:960px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px;}.logo{font-size:20px;font-weight:800;color:var(--primary);text-decoration:none;letter-spacing:-0.5px;}.logo 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