.media-list {
    height: 1330px;
    background: #fff;
    padding: 25px 50px 0px;
}

.media-list .media-list-tab {
    margin: 0px auto 10px;
    width: 790px;
    border-bottom: 1px solid #e6e5eb;
}

.media-list-tab a {
    float: left;
    color: #414141;
    font-size: 18px;
    text-align: center;
    height: 54px;
    line-height: 54px;
    width: 131px;
    margin-right: 198px;
    position: relative;
}

.media-list-tab a.last-a {
    margin-right: 0px;
}

.media-list-tab a.on{
    color: #f2782f;
}

.media-list-tab a:after {
    content: '';
    width:100%;
    position: absolute;
    left: 0px;
    bottom: -1px;
    height: 2px;
    background: #f2782f;
    transform: scale(0,0);
    transition: all .3s ease-in-out;
}

.media-list-tab a.on:after {
    content: '';
    width: 100%;
    position: absolute;
    left: 0px;
    bottom: -1px;
    height: 2px;
    background: #f2782f;
    transform: scale(1,1);
    transition: all .3s ease-in-out;
}

.media-content {
    width: 863px;
    overflow: hidden;
    margin: 0px auto;
}

.media-content > ul {
    width: 882px;
}

.media-content .media-item {
    width: 275px;
    height: 180px;
    position: relative;
    float: left;
    background: slateblue;
    margin: 43px 19px 44px 0px; 
}

.media-item .video-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -37px;
    margin-left: -37px;
    background: url("../images/common/video-icon.png") no-repeat center center;
    width: 74px;
    height: 74px;
    z-index: 2
}

.media-item img {
    position: absolute;
    top: 0px;
    left: 0px; 
    width:100%;
    height: 100%;
    z-index: 1;
}

.video-desc {
    position: absolute;
    bottom: 0px;
    left: 0px;
    width: 100%;
    background: rgba(0 , 0 , 0 , .5);
    height: 28px;
    line-height: 28px;
    text-align: center;
    color: #fff;
    font-size: 13px;
    z-index: 2;
}

.media-item .wrapper-size {
    height: 28px;
    width: 100%;
    position: absolute;
    bottom: 0px;
    left: 0px;
    overflow:hidden;
    z-index: 2;
    background: rgba(0,0,0,.5);
}

.media-item .wrapper-size a {
    float: left;
    width: 33.3%;
    border-left: 2px solid #fff;
    height: 14px;
    line-height: 14px;
    text-align: center;
    color: #fff;
    margin-top: 8px;
}

.media-item .wrapper-size a:hover {
    text-decoration: underline;
}

.media-item .wrapper-size a:first-child {
    border-left: none;
}

.pop-mediacenter-video {
    width: 800px;
    height: 420px;
}

.pop-mediacenter-video .close {
    position: absolute;
    width: 45px;
    height: 45px;
    background: url("../images/common/close.png") no-repeat center center;
    top: 0px;
    right: -55px;
}