.white-nav .head .nav li .SEMSystem{
    border-bottom: 2px solid #fff;
}
.black-nav .head .nav li .SEMSystem{
    border-bottom: 2px solid #111;
}
.footer{
    position: inherit;
    padding-bottom: 15px;
}
.banner-img{
    width: 100%;
}

#page1{
    height: calc(var(--real-vh, 1vh) * 100);
    width: 100%;
    background-image: url("/images/SEMSystemCase/banner.jpg");
    background-position-y: bottom;
}
#page1 .text{
    position: absolute;
    top: calc(calc(var(--real-vh, 1vh) * 100) * 210 / 1080);
    right: calc(100vw * 201 / 1920);
    font-size: calc(100vw * 50 / 1920);
    /*font-size: clamp(25px, 3vw, 60px);*/
    line-height: 1;
    margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 30 / 1080);
    color: #111;
}
.content{
    padding: calc(calc(var(--real-vh, 1vh) * 100) * -148 / 1080)  calc(calc(var(--real-vh, 1vh) * 100) * 200 / 1080) 0 calc(calc(var(--real-vh, 1vh) * 100) * 200 / 1080);
}
.sort{
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: calc(100vw * 75 / 1920);
    background: #fff;
}
.sort-fixed{
    position: fixed;
    top: 0;
    width: calc(100% - calc(100vw * 400 / 1920));
    z-index: 11;
}
.sort li{
    text-align: center;
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 36 / 1080);
    color: #555555;
    line-height: 1;
    flex: 1;
    padding: calc(100vw * 70 / 1920) 0 calc(100vw * 46 / 1920) 0;
    border-bottom: 1px solid #CCCCCC;
    position: relative;
    cursor: pointer;
}
.sort li:after{
    content: '';
    display: block;
    width: calc(100vw * 16 / 1920);
    height: calc(100vw * 16 / 1920);
    border-radius: 50%;
    background: #EEEEEE;
    position: absolute;
    bottom: calc(-100vw * 8 / 1920);
    left: 50%;
    margin-left: calc(-100vw * 8 / 1920);
}
.sort .active{
    background: linear-gradient(0deg, #3A87CD 0%, #75BDFF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.sort .active:after{
    background: linear-gradient(90deg, #3A87CD, #75BDFF);
}

.cases {
    margin-top: calc(100vw * 60 / 1920);
}

.cases .case-item{
    display: none;
    animation: opacityAnimation linear 0.5s; /* 应用opacityAnimation动画，持续2秒，无限次播放 */
}

.cases .case-item:first-child{
    display: block;
}

.cases .case-item ul{
    display: none;
    animation: opacityAnimation linear 0.5s; /* 应用opacityAnimation动画，持续2秒，无限次播放 */
}

.cases .case-item ul:first-child{
    display: block;
}

.cases .case-item ul li{
    float: left;
    margin: 0 calc(100vw * 60 / 1920) calc(100vw * 60 / 1920) 0;
    width: calc(50% - calc(100vw * 30 / 1920));
    position: relative;
}
.cases .case-item ul li:nth-child(even){
    margin-right: 0;
}
.cases .case-item ul li>img{
    width: 100%;
    display: block;
}
.cases .case-item ul li p{
    font-family: Microsoft YaHei;
    font-weight: 300;
    font-size: calc(100vw * 28 / 1920);
    color: #111111;
    line-height: 1;
    text-align: center;
    padding: calc(100vw * 16 / 1920) 0;
    background: #F6F6F6;
}
.cases ul li p>span{
    font-weight: 300;
    font-size: calc(100vw * 20 / 1920);
    margin-left: calc(100vw * 40 / 1920);
}
.vr-btn{
    width: calc(100vw * 140 / 1920);
    /*min-width: 164px;*/
    height: calc(100vw * 60 / 1920);
    background: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    vertical-align: middle;
    cursor: pointer;
    position: absolute;
    right: calc(100vw * 20 / 1920);
    top: calc(100vw * 20 / 1920);
    border-radius: calc(100vw * 30 / 1920);
}
.vr-btn span{
    font-size:  calc(100vw * 36 / 1920);
    font-weight: 400;
    color: #111111;
    margin-right: calc(100vw * 13 / 1920);
}
.vr-btn>img{
    display: inline-block;
    width: calc(100vw * 40 / 1920) ;
    height: calc(100vw * 40 / 1920);
}
.pagination{
    text-align: center;
    position: relative;
}
.pagination .pre-btn{
    width: 40px;
    height: 40px;
    line-height: 40px;
    border-radius: 5px;
    border: 1px solid #111111;
    text-align: center;
    display: inline-block;
    cursor: pointer;
}
.pagination .next-btn{
    width: 104px;
    height: 42px;
    line-height: 42px;
    background: #111111;
    border-radius: 5px;
    color: #fff;
    text-align: center;
    display: inline-block;
    cursor: pointer;
    font-family: Source Han Sans CN;
    font-weight: 400;
    font-size: 14px;
    margin-left: 14px;
}
.pagination .page-index {
    position: absolute;
    right: 0;
    bottom: -22px;
    font-family: Microsoft YaHei;
    font-weight: 300;
    font-size: 21px;
    color: #555555;
    line-height: 83px;
}
.pagination .page-index .current{
    font-family: Microsoft YaHei;
    font-weight: 400;
    font-size: 36px;
    color: #111111;
    line-height: 83px;
}
.pro-name{
    position: absolute;
    bottom: calc(calc(var(--real-vh, 1vh) * 100) * 20 / 1080);
    font-weight: 400;
    right: calc(100vw * 43 / 1920);
    font-size: calc(100vw * 28 / 1920);
    /*font-size: clamp(25px, 3vw, 60px);*/
    line-height: 1;
    margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 30 / 1080);
    color: #111;
    padding: 7px 12px;
    background: rgba(246, 246, 246, 0.8);
}
.pro-name span{
    font-size: calc(100vw * 24 / 1920);
}