.intro {
    margin-top: 80px;
}

.intro h1{
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 30px;
    color: #333333;
}
.intro .intro_title{
    font-size:18px;
    font-weight: bold;
    color:#333333;
    /* margin-bottom: */
}
.intro p {
    margin-bottom: 30px;
    line-height: 2.1;
    font-size: 12px;
    text-align: justify;
    color: #666666;
}

.video_box{
    width: 960px;
    height: 540px;
    position: relative;
}
.bg{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0,0,0,.3);
    display: flex;
    justify-content: center;
    align-items: center;
}
.bg img{
    width: 40px;
    height: 40px;
}

.cover-list{
    /*padding: 15px 0 70px;*/
    width: 960px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    /*flex-direction: column;*/
    flex-wrap: wrap;
}

.cover-list li{
    width: 474px;
    height: 474px;
    /*margin-right: 20px;*/
    /*cursor: pointer;*/
    margin-top: 12px;
    position: relative;
}

.cover-list li img{
    /*width: 100%;*/
    width: 474px;
    height: 474px;
}

.cover-list li .info{
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-color: rgba(250,250,250,0.8);
    opacity: 0;
    visibility: hidden;
    transition: visibility 1s,opacity 1s;
}
.cover-list li:hover .info {
    visibility: visible;
    opacity: 1;
}

.info_border{
    width: 400px;
    height: 400px;
    border: 1px solid #111111;
    margin: 0 auto;
    margin-top: 17px;
    transition: width 1s,height 1s;
}

.cover-list li:hover .info_border{
    width: 440px;
    height: 440px;
}
.title{
    width: 100%;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    margin-top: 116px;
}
.flag{
    width: 0;
    border-top: 1px solid  #999999;
    margin: 0 auto;
    margin-top: 15px;
    transition: width 1s;
}

.cover-list li:hover .flag{
    width: 59px;
}
.cover-list .info .info_border img{
    width: 97px;
    height: 97px;
    display: block;
    margin: 0 auto;
    margin-top:27px ;
}
.footer{
    margin-top: 92px;
    margin-bottom: 53px;
}

.list_box{
    width: 960px;
    /*flex-direction: column;*/
    /*display: flex;*/
    /*justify-content: space-between;*/
    /*align-items: center;*/
}
.item_box{
    width: 315px;
    display: inline-block;
    /*margin-left: 7px;*/
}
.item_box li{
    width: 315px;
    height: 315px;
    position: relative;
    margin-top: 8px;
}
.item_box li .liImage{
    width: 315px;
    height: 315px;
}
.er{
    margin-left: 8px;
}
.item_box li.groud{
    height: 564px;
    position: relative;
    overflow:hidden;
    
}
.item_box li.groud .item{
    width: 315px;
    height: 94px;
    transition: all 1s;
    position: relative;
    overflow:hidden;
}
.item_box li.groud .item .item_poster{
    position: absolute;
    top: 0;
    left: 0;
    z-index:2;
}
.item_box li.groud .item .poster{
    width: 100%;
    height: 100%;
    filter: grayscale(100%);
    /* filter: gray; */
    /* position: absolute;
    top: 0;
    left: 0; */
    transform: filter 1s ;
}
.item_box li .item:hover  .poster{
    filter: none;
}
.bg1{
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(250,250,250,0.8);
    width: 100%;
    height: 100%;
    visibility:hidden;
    opacity: 0;
    transition: visibility 1s,opacity 1s;
    display: flex;
    justify-content: center;
    align-items: center;
}
.item_box li:hover .bg1{
    visibility: visible;
    opacity: 1;
}

.bg1_box{
    margin: 0 auto;
    width: 250px;
    height: 85%;
    border: 2px solid #111111;
    border-right: none;
    border-left: none;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    font-weight: bold;
    transition: width 1s,height 1s;
}
.bg1_box_title{
    font-size: 20px;
    font-weight: bold;
    position: absolute;
    top:0;
    right: 0; 
    left: 0;
    bottom: 0;  
    display: flex;
    justify-content: center;
    align-items: center;
}
.item_box li:hover .bg1_box{
    width: 285px;
    height: 90%;
}

.video-title{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #ffffff;
}
.video-title span{
    font-size: 20px;
    font-weight: bold;
    visibility: visible;
    opacity: 1;
    transition: all 1s;
}
.item_box li.groud .item .video-title img{
    width: 40px;
    height: 40px;
    visibility: hidden;
    opacity: 0;
    position: absolute;
    left: 137px;
    top: 27px;
    transition: all 1s;

}
.item_box li.groud .item:hover .video-title span{
    opacity: 0;
    visibility: hidden;
}
.item_box li.groud .item:hover .video-title img{
    opacity: 1;
    visibility: visible;
}

/* 关闭按钮 */
.item_box li.groud .item .icon_close{
    width:30px;
    height:30px;
    position: absolute;
    top:10px;
    right:10px;
    z-index:1;
}
.item_box li.groud .item .icon_close:hover{
    cursor: pointer;
}
.item_box li.groud .item .icon_close img{
    width:100%;
    height: 100%;
}
/*.item-play{*/
    /*width: 100%;*/
    /*height: 100%;*/
/*}*/

/* 文章 */

.article-list{
	padding-top: 90px;
}

.article-list .article{
	padding-bottom: 50px;
	margin-bottom: 50px;
	cursor: pointer;
	border-bottom: 1px solid #eeeeee;
}

.article-list .article .date{
	float: left;
	width: 88px;
	height: 88px;
	border: 1px solid #333333;
	position: relative;
}

.article-list .article .date span {
	position: absolute;
	font-size: 14px;
	color: #333333;
	line-height: 1.3;
	left: 10px;
	top: 8px;
}

.article-list .article .date img {
	position: absolute;
	width: 13px;
	height: 13px;
	right: 10px;
	top: 10px;
}

.article-list .article .info{
	margin-left: 130px;
}

.article-list .article .info h2{
	font-size: 20px;
	color: #444444;
	margin-bottom: 25px;
}

.article-list .article .info h2:hover{
	color: #111111;
}

.article-list .article .info p{
	font-size: 14px;
	margin-bottom: 0;
}