.classification{
    box-shadow: 0 0 10px #f3f3f3;
    width: 1200px;
    height: 152px;
    border-left: 1px solid #f3f3f3;
    background: #FFFFFF;
    border-top: 3px solid #00afdf;
    margin-top: 50px;
    margin-bottom: 40px;
}

.classification li {
    width: 149px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    border-bottom: 1px solid #f3f3f3;
    border-right: 1px solid #f3f3f3;
    float: left;
    font-size: 14px;
    color: #f45c00;
}
.classification li a {
    width: 149px;
    height: 50px;
    display: block;
    color: #333;
}
.classification li a:hover{
    background:#f3f3f3; 
    color:#444;
}

.tk li:nth-child(4n){
    margin-right: 0;
}

.tk li:hover .listtitle a{color:#00afdf;}
.tk li:hover .listimg img {-webkit-transform: scale(1.1);-moz-transform: scale(1.1);-ms-transform: scale(1.1);-o-transform: scale(1.1);transform: scale(1.1);}

.mr20{margin-right:20px;}
.listbox{float:left; margin-bottom:20px; margin-top:10px;width:285px; height:255px; position:relative;background:#FFFFFF;box-shadow: 0 0 10px #f3f3f3;}
.listimg{float:left; width:285px; height:175px; position:relative; overflow:hidden;background-color: #ededed;}
.listimg img{background:#ededed; width:285px; height:175px;position:absolute;-webkit-transition: all 2s ease-in-out;-moz-transition: all 2s ease-in-out;-ms-transition: all 2s ease-in-out;-o-transition: all 2s ease-in-out;transition: all 2s ease-in-out;}
.listinfo{padding-left:10px;width:285px; line-height:25px; font-size:13px;}
.listinfo a{font-size:13px;color: #888888;}
.listtitle{float:left; margin-top:8px; _margin-top:-2px; width:285px; font-size:14px;}
.listtitle a{color: #1c1b1b;font-size: 14px;line-height: 35px;font-family: "微软雅黑";font-weight: 500;margin-bottom: 5px;}
.play-icon{}
.play-icon img{width:50px;height:50px;z-index:1;bottom:0;right:0;position:absolute;background:none;}