/*------------ video ------------*/

.video-list {
    margin: 0 -20px;
}

.video-list li {
    width: calc((100% / 4) - 0.1px);
    padding: 0 10px 35px;
}

.video-list li:nth-child(4n+1) {
    clear: left;
}

.video-list li .box {
    -webkit-transition: all .2s;
    transition: all .2s;
    background: #fff;
    padding: 12px;
    position: relative;
    max-width: 380px;
    margin: 0 auto;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
}
.video-list .box .cover{
    font-size: 0;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    z-index:30;
}

.video-list li .box:hover {
    -webkit-transition: all .2s;
    transition: all .2s;
}
.video-list li .box:before{
    content: '';
    display: block;
    width: 0;
    height: 1px;
    background: #cbb590;
    max-width: 70px;
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
    -webkit-transition: all .5s ease-in-out;
    transition: all .5s ease-in-out;
    -webkit-transition-delay: .2s;
    transition-delay: .2s;
}

.video-list li .box:hover:before{
    width: 100%;
}
.video-list li .pic {
    position: relative;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}
.video-list li .pic:before{
    content: '';
    display: block;
    background: rgba(51, 41, 26, 0.84);
    position: absolute;
    left: 0;
    top:0;
    width: 100%;
    height: 100%;
    -webkit-transition: all .3s ease-in-out;
    transition: all .3s ease-in-out;
    opacity: 0;
}
.video-list li .box:hover .pic:before{
    opacity: 1;
}
.video-list li .pic:after{
    content: '';
    display: block;
    background:url(../../images/common/hover.png) no-repeat 50% 50%;;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
    bottom: 0px;
    width: 200px;
    height: 52px;
    opacity: 0;
    -webkit-transition: all .4s ease-in-out;
    transition: all .4s ease-in-out;
    -webkit-transform: rotateX(360deg) translate(0,50px);
    transform: rotateX(360deg) translate(0,50px);
}
.video-list li .box:hover .pic:after{
    opacity: 1;
    -webkit-transform: rotateX(0deg)  translate(0,0px);
    transform: rotateX(0deg)  translate(0,0px);
}

.video-list li .name {
    font-size: 16px;
    line-height: 1.5;
    color: #000000;
    text-align: center;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 45px;
    margin: 15px 0 5px;
}

.video-list .box:hover .name  {
    text-decoration: underline;
}


/*------------ detail-main ------------*/

.video-detail {
    background: #fff;
    padding: 0 15px 10px;
}

.video-detail .editor{
    max-width: 1220px;
    margin: 0 auto;
}

.video-title {
    position: relative;
    margin: 0 -15px 15px;
    padding: 20px 40px;
    letter-spacing: 2px;
    color: #000000;
    font-size: 18px;
    text-align: center;
    border-bottom: 1px solid #dedede;
    line-height: 1.5;
}
.video-detail .btn-box {
    padding-top: 30px;
    text-align: center;
}
.video-detail .pic iframe{
    width: 100%;
    height: 480px;
    max-width: 840px;
    margin:auto;
    position:relative;
}
.video-detail .pic{
    text-align: center;
    padding:0 20px;
    margin-bottom: 30px;
}
.video-detail .pic .youtubecontent{
    height:auto;
    padding:10px;
}
/*------------ rwd ------------*/

@media screen and (max-width: 900px) {
    .video-list li {
        width: 50%;
    }
    .video-list li:nth-child(3n+1) {
        clear: none;
    }
    .video-list li:nth-child(2n+1) {
        clear: left;
    }
}
@media screen and (max-width: 760px) {
    .video-detail .pic iframe{
        height: 420px;
    }
    .video-detail .pic{
    padding:0px;
    margin-bottom: 20px;
}
}
@media screen and (max-width: 600px) {
    .video-list {
        margin: 0;
    }
    .video-list li {
        width: 100%;
        padding: 0 0 1px;
    }
    .video-detail .pic {
      padding: 0;
    }
    .video-detail .pic iframe{
        height: 360px;
    }
}

@media screen and (max-width: 480px) {
    .video-title {
        padding:12px 0;
    }
     .video-detail .pic iframe{
        height: 220px;
    }
}