.header__on:after {
    transform: translateY(0);
}
.header__on .logo img:nth-child(1) {
    opacity: 0;
}
.header__on .logo img:nth-child(2) {
    opacity: 1;
}
.header__on nav a {
    color: rgba(49, 49, 49, 1);
}
.header__on .other .login {
    color: rgba(49, 49, 49, 1);
}
.header__on .other .line {
    background: rgba(0,0,0,0.15);
}
.header__on .other .menu span {
    background: rgba(49, 49, 49, 1);
}
.header__on .other p {
    color: rgba(49, 49, 49, 1);
}
.section{
    width: 100%;
    background: #fff;
    overflow: hidden;
}
.section .warp{
    width: 1500px;
    margin: 203px auto 0;
}
.section .warp .title{
    font-size: 34px;
    font-family: PingFang SC;
    font-weight: 500;
    color: #2B2B2B;
    margin: 0 0 100px 0;
    text-align: center;
}

.section .warp .content .joke{
    margin: 55px 0 0 0;
    display: flex;
    flex-wrap: wrap;
}
.section .warp .content .joke .item{
    width: 480px;
    margin: 0 30px 50px 0;
    position: relative;
}
.section .warp .content .joke .item:after{
    content: '';
    position: absolute;
    bottom: 0;
    right: 0;
    width: 0;
    height: 1px;
    background: rgba(131, 68, 58, 1);
    transition: 0.6s;
}
.section .warp .content .joke .item:hover:after{
    width: 100%;
    left: 0;
}
.section .warp .content .joke .item:nth-child(3n){
    margin: 0 0 50px 0;
}
.section .warp .content .joke .item .picture{
    width: 100%;
    height: 352px;
    overflow: hidden;
    margin: 0 0 30px 0;
    display: block;
    position: relative;
}
.section .warp .content .joke .item .picture img{
    width: 100%;
    height: 100%;
    transition: 2s;
}
.section .warp .content .joke .item .picture:hover .picture1{
    transform: scale(1.1);
}
.section .warp .content .joke .item .text{
    margin: 30px 0 0 0;
    padding: 0 0 18px 0;
}
.section .warp .content .joke .item .text span{
    font-size: 12px;
    font-family: Source Han Sans CN;
    font-weight: 400;
    color: #8C8C8C;
    margin: 0 0 8px 0;
    display: block;
}
.section .warp .content .joke .item .text p{
    font-size: 18px;
    font-family: Source Han Sans CN;
    font-weight: 500;
    color: #242424;
}
.section .warp .content .common_paging{
    margin: 85px 0;
}
.section .warp .content .joke .item .picture .ewm {
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    position: absolute;
    top: 0;
    left: 0;
    /*display: none;*/
    align-items: center;
    justify-content: center;
    transition: 0.6s;
    transform: translateY(-100%);
}
.section .warp .content .joke .item .picture .ewm img {
    opacity: 0;
    transition: 0.6s;
}
.section .warp .content .joke .item .picture:hover .ewm {
    transform: translateY(0);
}
.section .warp .content .joke .item .picture:hover  .ewm img {
    opacity: 1;
}

@media screen and (max-width: 1856px) {

}
@media screen and (max-width: 1792px) {

}
@media screen and (max-width: 1680px) {

}
@media screen and (max-width: 1600px) {
    .section .warp{
        width: 90%;
    }
    .section .warp .content .joke .item{
        width: 31.7%;
    }
}
@media screen and (max-width: 1440px) {

}
@media screen and (max-width: 1400px) {

}

@media screen and (max-width: 1366px) {

}
@media screen and (max-width: 1025px) {
    .section .warp {
        width: 95%;
        margin: 120px auto 0;
    }
    .section .warp .title{
        font-size: 28px;
        margin: 0 0 50px 0;
    }
    .section .warp .content .joke {
        justify-content: space-between;
        margin: 34px 0 0 0;
    }

    .section .warp .content .joke .item .picture{
        height: auto;
        margin: 0;
    }
    .section .warp .content .joke .item{
        width: 49%;
        margin: 0 0 15px 0!important;
    }
    img{
        vertical-align: bottom;
    }
    .section .warp .content .joke .item .text p{
        font-size: 16px;
    }
    .section .warp .content .joke .item .text{
        margin: 12px 0 0 0;
    }
    .section .warp .content .common_paging {
        margin: 14px 0;
    }
}