.nav-down .www{display:none;}
.nav-top-ul{overflow-x: auto;display: inline-flex;}
.swiper-slide {
    flex-shrink: 0;
    width: 100%;
    height: 100%;
    position: relative;
    transition-property: transform;}



.nav-top-ul::-webkit-scrollbar {
    width: 6px;
    height: 10px;}
.nav-top-ul::-webkit-scrollbar-thumb {
    border-radius: 5px;
    background: #1a3e71;}

.nav-top-ul::-webkit-scrollbar-track {
    border-radius: 5px;
    background: #ccc;}