.box4{
    background-color: #f8f8f8;
    position: relative;
    height: 100vh;
}
.box4-nr{

    position: absolute;
    top: 55%;
    left: 50%;
    transform: translate(-50%,-50%);

}
.box4-nr>p{
    text-align: center;
}
.box4-nr>:first-child{
    font-size: 25px;
}
.box4-nr>:nth-child(2){
    font-size: 14px;
    line-height: 25px;
    margin: 20px 0 40px 0;
    color: #666;
}

.box4 .four_flash{
    position: relative;
}
.box4 .flashbg {
    width: 1200px;
    font-size: 0;
    overflow: hidden;
}
.mobile-4>ol{
    /*width: 1200px;*/
    font-size: 0;
    display: inline-block;
}
.mobile-4>ol>li{
    width: 400px;
    display: inline-block;
}
.mobile-4>ol>li>div{
    width: 92%;
    margin: 0 auto;
}
.mobile-4>ol>li>:first-child{
    background-color: #ffff;
    padding: 15px 15px;
    box-sizing: border-box;
}
.box4-tit{
    font-size: 20px;
    text-align: center;
}
.box4-js{
    font-size: 14px;
    line-height: 25px;
    margin: 10px 0;
    color: #666;
}
.box4-day{
    font-size: 14px;
    text-align: right;
    color: #999999;
}

.mobile-4>ol>li>div>img{
    width: 100%;
}
.box4_left {

    position: absolute;
    top: 150px;
    left: -52px;
    cursor:pointer;
}

.box4_right {
    position: absolute;
    top: 150px;
    right: -44px;
    cursor:pointer;
}

@media (max-width: 760px) {
    .box4-nr{
        top: 50%;
    }
    /*.box4 .none{*/
    /*display: none;*/
    /*}*/
    .box4 .flashbg{
        width: 100vw;
        text-align: center;
    }
    .mobile-4>ol>li{
        width: 100vw;
    }
    .box4-js{
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        line-clamp: 2;
        -webkit-box-orient: vertical;
        font-size: 14px;
        margin: 10px 0;
        line-height: 22px;
    }
    .box4-tit{
        font-size: 18px;
    }
    .mobile-4>ol>li>div{
        width: 80%;
    }
    .mobile-4>ol>li>div img{
        width:100%;
    }
    .mobile-4>ol>li>:first-child{
        padding: 15px;
    }
    .box4-nr>:first-child{
        font-size: 20px;
    }
    .box4-nr>:nth-child(2){
        font-size: 16px;
        line-height: 30px;
        margin: 30px 0 ;
        padding: 0 5px;
    }
    .box4_left{
        top: 120px;
        left: 0;
    }
    .box4_right{
        top: 120px;
        right: 0;
    }
}