.site-header {
    width: 100%;
    background: #fff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
    position: relative;
    z-index: 100;
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    height: 64px;
    padding: 0 20px;
}
.logo img {
    display: block;
}