.site-header{

background:#ffffff;

border-bottom:1px solid #e5e5e5;

position:sticky;

top:0;

z-index:999;

}

.header-container{

max-width:1300px;

margin:auto;

display:flex;

justify-content:space-between;

align-items:center;

padding:18px 20px;

}

.logo a{

font-size:32px;

font-weight:700;

color:#111;

text-decoration:none;

}

.main-menu{

display:flex;

gap:28px;

list-style:none;

margin:0;

padding:0;

}

.main-menu a{

text-decoration:none;

color:#333;

font-weight:600;

transition:.3s;

}

.main-menu a:hover{

color:#ff6600;

}