.site-header{position:sticky;top:0;z-index:1000;background-color:#f4f4f8;box-shadow:0 2px 6px rgba(0,0,0,.05)}.site-nav{max-width:1200px;margin:0 auto;padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between}.site-nav .logo{font-weight:bold;font-size:1.2rem;color:#333}.site-nav .nav-list{display:flex;gap:1.5rem;list-style:none;margin:0;padding:0}.site-nav .nav-list li{margin:0}.site-nav .nav-list li a{text-decoration:none;color:#333;padding:.5rem .8rem;border-radius:4px;transition:background-color .2s}.site-nav .nav-list li a:hover{background-color:#e0e0ea}