#news-banner{
    height: 340px;
    width: 100%;
    background: url("../images/news-banner.jpg") no-repeat;
}

#science-intro-banner{
    height: 340px;
    width: 100%;
    background: url("../images/science-intro-banner.jpg") no-repeat;
}

#video-banner{
    height: 340px;
    width: 100%;
    background: url("../images/video-banner.jpg") no-repeat;
}

#news-detial{
    background-color:#f8f8f8 ;
    padding-top: 60px;
    padding-bottom: 70px;
}
#news-detial .w-850{
    overflow-x: hidden;
}
.news-title{
    font-size: 30px;
    text-align: center;
}
.news-time{
    height: 35px;
    line-height: 35px;
    text-align: center;
    color: #858585;
    margin: 10px 0;
    border-bottom: solid 1px #C0C0C0;
}
.news-content{
    margin-top: 20px;
}
.video-blk{
    width: 440px;
    height: 400px;
    border-radius: 10px;
    background-color: #fffffe;
    margin-top: 40px;
}

.video-tit{
    font-size: 20px;
    color: #006e3f;
    margin-top: 20px;
}
.video-time{
    font-size: 14px;
    color: #7f7f7f;
}
.video-blk video{
    margin: 0 auto;
}
.video-d{
    width: 400px;
    height: 270px;
    margin:  0 auto;
}
#video-content{
    margin: 0 auto;
    padding-bottom: 50px;
}
.video-blk:hover{
    box-shadow: 10px 10px 10px 2px #dfdfdf;
}
#sciece-list .news-title,#sciece-list .news-time{
    text-align: left;
}

@media screen and (max-width: 767px) {
    .video-d,.video-blk,#news-detial .w-1440{
        width: 100%;
    }
    .page-nav{
        line-height: 25px;
    }
}