.top-1{
    width: 100%;
    height: 560px;
    background:url("../../resource/image/cooperation-case/top1_bg.jpg") #305181 no-repeat center top;
    text-align: center;
}
.top-1>button{
    margin-top:172px;
    border: 0;
    background:url("../../resource/image/index/top6_play.png") no-repeat;
    width: 96px;
    height: 96px;
}
.content{
    width: 1200px;
    margin: auto;
    padding-top: 12px;
}
.content-h>div{
    word-spacing: -3px;
    display: inline-block;
    vertical-align: top;
}
.content-h>div>button{
    border: #e5e5e5 1px solid;
    width: 80px;
    height: 30px;
    font-size: 12px;
    line-height: 30px;
    background-color: #e5e5e5;
    color: #a2a2a2;
}
.content-h>div>button.active{
    background-color: #f5f5f5;
    color: #333333;
}
.content-h > div.content-h-group{
    line-height: 30px;
    word-spacing: 15px;
    display:contents ;
}
.content-h-group a{
    color:#7F7F7F;
}
.content-h-group a.active{
    color: #127DF0;
    display: inline-grid;
}
.content-c{
    padding-top: 12px;
    word-spacing: 34px;
}
.content-c>div{
    width: 270px;
    height: 300px;
    background-color: #f5f5f5;
    border: #d4d4d4 1px solid;
    display: inline-block;
    vertical-align: top;
    margin-bottom: 20px;
}
.content-c>div>img{
    width: 270px;
}
.content-c>div>p{
    height:40px;
    font-size:14px;
    font-weight:400;
    color:rgba(51,51,51,1);
    line-height:40px;
    text-align: center;
    margin: 0;
}
/*播放视频*/
.mask {
    position: fixed;
    top: 0;
    left: 0;
    display: none;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 24;
}
.box-video {
    width: 1200px;
    height: 675px;
    position: fixed;
    display: none;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    z-index: 27;
    margin: auto;
}