.case {
    position: relative;
    width: 100%;
    height: 61.4375rem;
    padding: 5.25rem 0;
    /* background: url('http://static.web3di.com/case-bg.png') no-repeat center; */
    /* background-size: 100% 100%; */
    background: #001A7E;
}
.case {
    padding-bottom: 0;
}
.jgtop {
    position: absolute;
    width: 100%;
    height: 8.125rem;
    top: 0;
    left: 0;
    right: 0;
}
.content-all {
    width: 90.125rem;
    margin: 0 auto;
}
.case-top {
    display: flex;
    height: 2.1875rem;
    line-height: 2.1875rem;
    margin-bottom: 1.875rem;
    background-size: 100% 100%;
}
.news h3 {
    flex: 5;
    font-size: 2.1875rem;
    color: #333333;
}
.news-top div {
    flex: 1;
    text-align: right;
}
.business-top a {
    font-size: 1.25rem;
    color: #000000;
}
.case-top h3{
    flex: 5;
    font-size: 2.1875rem;
    color: #ffffff; 
}
.case-top a {
    position: relative;
    font-size: .875rem;
    color: #ffffff; 
}
.case-content {
    display: flex;
}
.case-nav {
    width:9.375rem;
    height:43.25rem;
    margin-right: 2.125rem;
    text-align: center;
    margin-left: 1.25rem;
}
.case-swiper {
    height: 46rem;
}
.case-nav ul {
    width:9.375rem;
    height:43.25rem;
    background: #082045;
}
.case-nav li {
    width: 9.375rem;
    height: 4.75rem;
    line-height: 4.75rem;

}
.case-nav li:hover {
    background: url('http://static.web3di.com/img/1_tab.png') no-repeat center;
    background-size: 100% 100%;
    transform: scale(1.2);
}
.case-nav-active {
    background: url('http://static.web3di.com/img/1_tab.png') no-repeat center;
    background-size: 100% 100%;
    transform: scale(1.2);
}
.case-nav img {
    width: 1.375rem;
    height: 1.375rem;
    vertical-align: middle;
}
.case-nav span {
    font-size: 1rem;
    color: #ffffff;
}
.swiper-container{
    width: 77.375rem;
    height: 100%;
}
.swiper-slide{
    width: 100%;
    height: 11.875rem;
}
.swiper-slide{
    width: 100%;
    height: 100%;
}
.swiper-slide-content {
    width: 100%;
    height: 100%;
}
.swiper-top,
.swiper-bottom {
    display: flex;
    justify-content: space-between;
}
.swiper-bottom {
    margin-top: 1.375rem;
}
.swiper-top a {
    display: inline-block;
    font-size: 0;
    position: relative;
}
.swiper-top img {
    width: 38rem;
    height: 25.3125rem;
}
.case-item-title {
    height: 2.25rem;
    width: 100%;
    line-height: 2.25rem;
    font-size: .875rem;
    background-color: rgba(0,0,0,.4);
    color: #ffffff;
    text-align: center;
    position: absolute;
    bottom:-1px;
}
.swiper-bottom  a{
    display: inline-block;
    font-size: 0;
    width: 24.875rem;
    height: 16.5625rem;
    position: relative;
}
.swiper-bottom img{
    width: 100%;
    height: 100%;
}
.swiper-bottom a:last-child{
    margin-bottom: 0;
}
.swiper-pagination {
    text-align: right;
}
.swiper-pagination-bullet-active {
    background-color: #ffffff;
}
.swiper-pagination-bullet{
    background: #ffffff;
}
@media screen and (max-width: 750px) {
    .content-all {
        width: 41.875rem;
    }
    .case {
        width: 100%;
        padding: 2.5rem 2.5rem;
        /*background-color: #F9F9F9;*/
        background: url('http://static.web3di.com/img/al_bk.png') no-repeat center;
    }
    .case-top
    { 
        margin-bottom: 2.5rem;
    }
    .case {
        height: 62.625rem
    }
    .case-content {
        display: block;
    }
    .case-nav {
        width: 100%;
        height: 4.875rem;
        margin-bottom: 2.125rem;
        margin-left: 0;
        overflow-y: hidden;
    }
    .case-nav::-webkit-scrollbar{
        display: none;
    }
    .case-nav ul{
        width: 200%;
        height: 4.375rem;
        display: flex;
    }
    .case-nav li {
        width: 10.375rem;
        line-height: 4.375rem;
        white-space: nowrap;
        padding: 0 1rem;
    }
    .case-nav li img {
        display: none;
    }
    .case-nav li:hover {
        background: url('http://static.web3di.com/img/1_tab.png') no-repeat center;
        background-size: 100% 100%;
        transform: none;
    }
    .case-nav-active {
        background: url('http://static.web3di.com/img/1_tab.png') no-repeat center;
        background-size: 100% 100%;
        transform: none;
    }
    .swiper-container{
        width: 41.875rem;
        height: 48.1rem;
    }
    .swiper-wrapper {
        height: 59.5rem;
    }
    .swiper-top {
        display: block;
        width: 41.875rem;
        height: 27.875rem;
    }
    .swiper-top img {
        width: 41.875rem;
        height: 27.875rem;
    }
    .swiper-bottom {
        width: 41.875rem;
        height: 13.5rem;
    }
    .swiper-bottom a{
        height: 13.5rem;
    }
    .swiper-bottom  img {
        width: 20.25rem;
        height: 13.5rem;
        margin-right: 1.375rem;
    }
    .swiper-bottom .case-item-title{
        width: 20.25rem;
        white-space:nowrap;
        overflow: hidden;
    }
    .swiper-top a:nth-of-type(n+2){
        display: none;
    }
    .swiper-bottom a:nth-of-type(n+3){
        display: none;
    }
    .swiper-pagination {
        text-align: center;
    }
}