.swiper{
    --swiper-theme-color: #ff6600;
    --swiper-pagination-color: #00ff33;/* 两种都可以 */
}
.banner {
    height: 360px;
    background: url(../images/banner-gsdt.png) no-repeat center;
    background-size: cover;
}
.banner div{
    font-size: 60px;
    color: #3089FC;
    /*background: rgba(255, 162, 0, 0.6);*/
}
.banner .logen{
    font-size: 24px;
    color: #242424;


}
.nav-sub a{
    position: relative;
    display: flex;
    align-items: center;
}
.nav-sub a:not(:nth-child(1)){
    margin-left: 30px;
}
.nav-sub a::after{
    content: " ";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 0;
    height: 2px;
    background: #4A87F5;
    opacity: 1;
    transform: translateX(-50%);
    color: #4A87F5;
    transition: width ease-in-out .5s;
}
.nav-sub a:hover::after,.nav-sub a.active::after{
    width: 100%;
}
.main .swiper img{

}
.main ul img{
    width: 100%;
    height: 214px;
    object-fit: contain;
}

.border-dotte{
    border: 2px #000 dotted;
}