.first-banner{
    position: absolute;
    top: 0;
    height: 500px;
    width: 100%;
    z-index: 0;
}
.first-banner a{
    display: block;
    width: 100%;
    height: 500px;
}
.first-banner a img{
    height: 500px;
}
.nav-index{
    width: 20%;
    position: absolute;
    z-index: 9;
    width: 20%;
    background: rgba(255, 255, 255, 0.6);
    height: 450px;
}
.nav-show {
    background:none !important;
}
.nav-index a{
    position: relative;
    display: block;
    height: calc(450px/7);
    line-height: calc(450px/7);
    text-indent: 20px;
    color: #eb6100;
}
.nav-index a::after{
    content: '>';
    right: 20px;
    position: absolute;
}
.demo{
    height: 450px;
}
.login{
    padding-top: 50px;
    position: absolute;
    right: 0;
    width: 20%;
    top: 20px;
    z-index: 1;
    background: rgba(248, 248, 248, 0.8);
}
.login-img{
    display: flex;
    width: 90%;
    margin: 0 auto;
    align-items: center;
    justify-content: center;
}
.login-img img{
    width: 50px;
    height: 50px;
}
.login-img span{
    height: 50px;
    line-height: 50px;
    margin-left: 10px;
    font-size: 18px;
    color: #cf9604;
}
.login-p{
    display: block;
    height: 40px;
    line-height: 40px;
    width: 90%;
    margin: 0 auto;
    text-align: center;
    font-size: 17px;
}
.login-a{
    display: flex;
    width: 90%;
    margin: 0 auto;
    justify-content: space-between;
}
.login-a a{
    width: 49%;
    height: 30px;
    line-height: 30px;
    text-align: center;
    color: #fff;
    font-size: 16px;
}
.login-a a:nth-child(1){
    background: linear-gradient(to right,#d3990a,#fad563);
}
.login-a a:nth-child(2){
    background: #f19ec2;
}
.gg-top{
    width: 90%;
    margin: 30px auto 0;
    height: 30px;
    position: relative;
}
.gg-top::after{
    content: '';
    height: 2px;
    width: 100%;
    position: absolute;
    background: linear-gradient(to right,#d59b0c,#f7d25f,#d59b0c);
    bottom: 0;
}
.gg-top p{
    color: #cf9604;
    font-size: 18px;
}
.login-ul{
    width: 90%;
    margin: 0 auto;
}
.login-ul a{
    display: block;
    height: 30px;
    line-height: 30px;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    text-indent: 20px;
    position: relative;
    font-size: 16px;
}
.login-ul a::after{
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 8px;
    background: #cf9604;
    left: 0;
    top: calc((100% - 8px)/2);
}
.top-adv a{
    height: 120px;
}
.top-adv2 a{
    width: 100%;
    height: 120px;
    overflow: hidden;
}
.top-bg{
    display: flex;
    height: 40px;
    width: 100%;
    background: url(../img/top-bg.jpg)no-repeat;
    background-size: 100% 100%;
    align-items: center;
}
.top{
    height: 30px;
    align-items: center;
    width: calc(100% - 20px);
    margin: 0 auto;
    border-bottom: 1px solid #fff;
    box-sizing: border-box;
}
.top span{
    color: #fff;
    font-size: 18px;
}
.top a{
    color: #fff;
}
.art-img1 div{
    height: 170px;
    overflow: hidden;
}
.art-img1 a span{
    display: block;
    height: 30px;
    line-height: 30px;
    background: linear-gradient(to right,#e0b753,#f8df8e,#e0b753);
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-indent: 0.5em;
    font-size: 15px;
}
.art-ul{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.art-ul a{
    display: block;
    margin-top: 20px;
    width: 49%;
}
.art-ul a p{
    display: block;
    height: 30px;
    line-height: 30px;
    text-indent: 15px;
    white-space: nowrap;
    overflow: hidden;
    position: relative;
    color: #ba890c;
    font-size: 16px;
}
.art-ul a p::after{
    content: '';
    position: absolute;
    width: 10px;
    height: 1em;
    background: #cf9604;
    left: 0;
    top: calc((100% - 1em)/2);
}
.art-ul a span{
    display: block;
    height: 50px;
    line-height: 25px;
    overflow: hidden;
    width: 100%;
    color: #525252;
}
.art-img2 a{
    margin-top: 10px;
    position: relative;
    height: 125px;
}
.art-img2 a span{
    position: absolute;
    display: block;
    height: 30px;
    line-height: 30px;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    text-indent: 0.3em;
    color: #fff;
    background: rgba(0, 0, 0, 0.6);
    bottom: 0;
    left: 0;
}
.art-adv a{
    height: 120px;
}
.sell-img1 a{
    position: relative;
    height: 250px;
}
.sell-img1 a span{
    display: block;
    height: 30px;
    line-height: 30px;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    background: rgba(0, 0, 0, 0.6);
    position: absolute;
    bottom: 0;
    right: 0;
    color: #fff;
    text-indent: 0.5em;
}
.sell-img2 a{
    margin-top: 10px;
    height: calc((250px - 10px)/2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.sell-img2 a div{
    width: 30%;
    height: 100%;
    overflow: hidden;
}
.sell-img2 a span{
    width: 69%;
    height: 60px;
    line-height: 30px;
    overflow: hidden;
    font-size: 16px;
    color: #d29c11;
}
.sell-adv1{
    margin-top: 10px;
    height: 510px;
}
.sell-adv1 a{
    height: 100%;
}
.w35{
    width: 34%;
}
.w25{
    width: 24%;
}
.sell-adv2 a{
    height: 120px;
}
.sell-adv3 a{
    height: 120px;
}
.buy-img{
    width: 95%;
    margin: 0 auto;
}
.buy-img a div{
    height: 140px;
    overflow: hidden;
}
.buy-img a span{
    display: block;
    height: 30px;
    line-height: 30px;
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    color: #d29c11;
    font-size: 18px;
}
.buy-ul{
    width: 95%;
    margin: 0 auto;
}
.buy-ul a{
    display: block;
    height: 40px;
    line-height: 40px;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    font-size: 17px;
    color: #d29c11;
}
.com-img1 a{
    padding: 10px 0;
    border-top: 1px dashed #d29c11;
    box-sizing: border-box;
    height: 120px;
}
.com-img1 a:nth-child(1){
    border-top: none;
}
.com-img1 a{
    display: flex;
    justify-content: space-between;
}
.com-img1 a div{
    width: 74%;
}
.com-img1 a p{
    display: block;
    height: 40px;
    line-height: 40px;
    position: relative;
    text-indent: 15px;
    font-size: 17px;
    color: #d29c11;
}
.com-img1 a p::after{
    content: '';
    width: 10px;
    height: 1em;
    left: 0;
    top: calc((100% - 1em)/2);
    background: #d29c11;
    position: absolute;
}
.com-img1 a span{
    display: block;
    width: 100%;
    height: 60px;
    line-height: 30px;
    overflow: hidden;
}
.com-img1 a img{
    width: 24%;
    height: 100px;
}
.com-img2 a{
    border: 1px solid #d29c11;
    box-sizing: border-box;
    height: 150px;
}
.com-ul a{
    height: 40px;
    align-items: center;
}
.com-ul a p{
    text-indent: 0;
    font-size: 16px;
    color: #d29c11;
}
.com-ul a span{
    color: #d29c11;
}
.com-adv1 a{
    height: 120px;
}
.com-adv2 a{
    height: 120px;
}
.exh-img{
    width: 95%;
    margin: 0 auto;
}
.exh-img a div{
    height: 320px;
    overflow: hidden;
}
.exh-img a span{
    height: 30px;
    line-height: 30px;
    white-space: nowrap;
    overflow: hidden;
    width: 100%;
    font-size: 17px;
    color: #d29c11;
}
.exh-adv1 a{
    height: 120px;
}