.banner a{
    display: block;
}
.banner img{
    display: block;
    width: 100%;
}
.banner .prev,
.banner .next{
    width: 37px;
    height: 37px;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: 50%;
    margin-top: -18.5px;
    opacity: 0;
    visibility: hidden;
}
.banner .prev{
    left: 15px;
    background-image: url("../image/prev1.png");
}
.banner .next{
    right: 15px;
    background-image: url("../image/next1.png");
}
.banner:hover .prev,
.banner:hover .next{
    opacity: 1;
    visibility: visible;
}

.s1-banner{
    width: 36.43%;
}
.s1-banner a{
    display: block;
    overflow: hidden;
    position: relative;
}
.s1-banner a .pic{
    padding-top: 57.25%;
    height: 292px;}
.s1-banner a p{
    position: absolute;
    left: 0;
    bottom: 0;
    right: 0;
    font-size: 16px;
    color: #fff;
    line-height: 26px;
    padding: 0 10px;
    text-align: center;
    background: rgba(34,34,34,.8);
}
.s1-banner .prev,
.s1-banner .next,
.s2-banner .prev,
.s2-banner .next{
    background: none;
    width: 14px;
    height: 24px;
    margin-top: -12px;
    color: #fff;
    opacity: 0;
    visibility: hidden;
}
.s1-banner:hover .prev,
.s1-banner:hover .next,
.s2-banner:hover .prev,
.s2-banner:hover .next{
    opacity: 1;
    visibility: visible;
}
.s1-tab{
    width: 56.57%;
    background: #fff;
    box-shadow: 0 5px 20px #cccccc;
    padding: 15px;
}
.tab-tit span{
    display: inline-block;
    font-size: 12px;
    color: #333;
    line-height: 24px;
    padding: 0 11px 0 10px;
    border-radius: 15px;
    transition: all .3s;
    vertical-align: middle;
    margin-left: 140px;
    cursor: pointer;
}
.tab-tit span.active{
    background: #1e87f0;
    color: #fff;
}
.tab-b .item ul li{
    border-top: 1px dashed #e5e5e5;
    line-height: 34px;
    margin-left: 44px;
}
.tab-b .item ul li:first-child{
    border-top: none;
}
.tab-b .item ul li a{
    display: block;
    color: #807e7e;
    font-size: 14px;
}
.tab-b .item ul li:hover a{
    color: #0f6ecd;
    text-decoration: underline;
}
.tab-b{
    margin-top: 20px;
}
.tab-b>div{
    display: none;
}
.s1-sp{
    width: 25%;
}
.s1-sp a{
    display: block;
    overflow: hidden;
}
.s1-sp a .pic{
    padding-top: 81.36%;

    height: 292px;}
    .s1-sp a .pic video{
        position:absolute;
        left:0;
        top:0;
        right:0;
        bottom: 0;
        width: 100%;
        height: 100%;
        margin: auto;
     }
.s1{
    margin-top: 35px;
}
.s2-tit h4{
    font-size: 21px;
    line-height: 1.5;
    color: #333;
    text-align: center;
}
.s2-tit p{
    font-size: 14px;
    color: #999;
    line-height: 1;
    text-align: center;
}
.s2-banner a{
    display: block;
    overflow: hidden;
}
.s2-banner .pic{
    padding-top: 223.04%;
}
.s2-banner{
    margin-top: 30px;
}
.s2{
    margin-top: 35px;
}
.index{
    padding-bottom: 30px;
}

@media screen and (max-width: 1060px){
    .banner{
        margin-top: 60px;
    }
    .s1-banner{
        width: 100%;
        margin-bottom: 25px;
    }
    .s1-banner a .pic{
        height: auto;
    }
    .s1-tab,
    .s1-sp{
        width: 50%;
    }
    .s1-sp a .pic{
        height: auto;
    }
}

@media screen and (max-width: 640px){
    .s1-tab{
        width: 100%;
        margin-bottom: 25px;
    }
    .s1-sp{
        width: 100%;
    }
}