.list_pc{
    margin: 0 auto;
    padding-top: 16px;
    width: 828px;
    height: 167px;
    background-color: #000000;
    position: relative;
}

.list_pc .btnLeft{
    position: absolute;
    left: 27px;
    top: 72px;
    cursor: pointer;
}

.list_pc .btnRight{
    position: absolute;
    right: 27px;
    top: 72px;
    cursor: pointer;
}

.list_pc .mask{
    margin: 0 auto;
    width: 640px;
    height: 135px;
    position: relative;
    overflow: hidden;
}

.list_pc .mask .menuVideo{
    position: absolute;
    left: 0;
    top: 0;
    cursor: pointer;
}

.list_pc .mask .menuVideo img{
    position: absolute;
    left: 0;
    top: 0;
}

.detail_pc{
    margin: 0 auto;
    width: 828px;
    height: 340px;
    background-color: #007d91;
    position: relative;
}

.detail_pc .title{
    position: absolute;
    left: 40px;
    top: 17px;
}

.detail_pc .txt{
    position: absolute;
    left: 530px;
    top: 54px;
}

.detail_pc .cover{
    position: absolute;
    left: 530px;
    top: 220px;
}

.detail_pc .YTVideo{
    position: absolute;
    left: 40px;
    top: 54px;
}

.detail_pc .btnFree{
    display: block;
    position: absolute;
    left: 695px;
    top: 217px;
}