*{margin: 0;padding: 0;font-family:'Microsoft YaHei';}
ul,ol,li{list-style: none;}
li{cursor: pointer;}
img{vertical-align: top;}
a{text-decoration: none;cursor: pointer;}

body{
    width: 1920px;
    background: #000;
    overflow-x: hidden;
}
input{
    outline: none;
    background: none;
    border: none;
}
#main{
    width: 1920px;
    height: 899px;
    background: url(../images/jt_main_bg.jpg) no-repeat;
    background-size: 100% 100%;
    overflow: hidden;
}
.video-banner{
    width: 1920px;
    height: 156px;
    background: url(../images/video_banner.jpg) no-repeat;
    background-size: 100% 100%;
    overflow: hidden;
}
.video-banner .down{
    width: 209px;
    height: 112px;
    background: url(../images/jt_sp_down_bg_.png) no-repeat;
    background-size: 100% 100%;
    position: relative;
    margin: 28px 0 0 1064px;
}
.video-banner .down .code{
    width: 84px;
    height: 84px;
    margin: 14px 0 0 23px;
}
.video-banner .down .down-btn{
    position: absolute;
    top: 26px;
    right: 18px;
}
.down-btn:hover{
    animation: move .8s infinite;
}
@keyframes move{
    /* 0%表示动画开始的关键帧 */
    0%{
        top: 26px;
    }   

    100%{
        top: 30px;
    }
   /*  100%{
        margin: 16px 0 0 33px;
    } */
}


#content{
    width: 1200px;
    height: 871px;
    background: #ffffff;
    margin: 12px auto 0;
    position: relative;
    overflow: hidden;
}
#content #tit{
    height: 68px;
    text-align: left;
    overflow: hidden;
}
#content #tit h3{
    width: 990px;
    color: #000;
    font-size: 20px;
    text-align: left;
    margin: 11px 0 0 20px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}
#content #tit p{
    color: #000;
    margin: 6px 0 0 20px;
    font-size: 12px;
}
#content #tit p a{
    color: #000;
}
#content #tit .tit-nav{
    position: absolute;
    top: 18px;
    right: 20px;
    color: #4B4037;
    font-size: 14px;
}
#content #tit .tit-nav a{
    color: #4B4037;
}
.videoshow{
    height: 523px;
}
.video-wrap{
    width: 894px;
    height: 525px;
    float: left;
    background: #000;
    margin-left: 12px;
}
.video-wrap video{
    width: 100%;
    height: 100%;
}

.video-list{
    float: left;
    width: 275px;
    height: 525px;
    margin-left: 10px;
    background: #2D2D2D;
}
.video-list ul{
    width: 292px;
    height: 490px;
    overflow-y: scroll;
    margin: 17px 0 0 12px;
}
.video-list ul::-webkit-scrollbar{
    width: 0px;
    background: none;
}
.video-list ul li{
      height: 57px;
    margin-bottom: 28px;
    overflow: hidden;
}
.video-list ul img{
    width: 104px;
    height: 57px;
    float: left;
    margin-right: 8px;
}
.video-list ul h4{
    width: 136px;
    color: #ccc;
    line-height: 19px;
    font-size: 13px;
    float: left;
    overflow : hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}
.related-video li .imgdata{
    width: 214px;
    height: 119px;
}
.related-video{
    width: 1177px;
    height: 260px;
    margin: 19px auto 0;
    border-top: 1px dashed #DFDFDF;
}
.related-video h3{
    font-size: 19px;
    color: #000;
    height: 36px;
    line-height: 36px;
    margin: 18px 0 4px 34px;
    /* margin-left: 34px; */
}
.related-list{
    width: 1184px;
    /* margin-left: 18px; */
    height: 187px;
    overflow: hidden;
}
.related-video li{
    width: 214px;
    float: left;
    margin-right: 21px;
    margin-bottom: 4px;
    position: relative;
}
.related-video li>img{
    width: 214px;
    height: 119px;
}
.related-video li h4{
    font-size: 14px;
    height: 64px;
    line-height: 24px;
    margin-bottom: 3px;
    color: #000;
    font-weight: 400;
    overflow : hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.related-video li h4 span{
    color: #DC3B10;
}
.video_mask{
    position: absolute;
    top: 0;
    left: 0;
    width: 214px;
    height: 119px;
    background: rgba(0,0,0,.5);
    opacity: 0;
}
.video_mask:hover{
    opacity: 1;
}
.video_mask img{
    width: 45px;
    height: 45px;
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    margin: -23px auto 0;
}
.related-list li .date{
    position: absolute;
    top: 106px;
    right: 12px;
    font-size: 14px;
    color: #fff;
    font-weight: bold;
    line-height: 0;
}