.download_banner img{
	max-width: 100%;
}
.datapdf_content{
	background-color: #474646;
	padding-bottom: 15px;
}
.datapdf_class_list{
	padding: 100px 0 60px 0;
	text-align: center;
}
.datapdf_class_list ul{
	display: flex;
	justify-content: center;
}
.datapdf_class_list li a{
	color: #fefefe;
	margin: 0 40px;
	font-size: 24px;
}
.datapdf_class_list li a.active{
	color: #cbad8c;
}
.datapdf_content_list ul{
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
}
.datapdf_content_list ul li{
	width: 36%;
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 50px;
}
.datapdf_left{
    color: #ccc;
    font-size: 16px;
}
.video_list ul{
	display: flex;
	flex-wrap: wrap;
}
.video_list ul li{
	margin-right: 5.7%;
    width: 28.7%;
    margin-bottom: 88px;
}
.video_list ul li:nth-child(3n){
	margin-right: 0;
}
.video_list_img{
	position: relative;
}
.video_list_img img{
	max-width: 100%;
}
.shadow{
	position: absolute;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	background: rgba(0,0,0,0.6);
	display: none;
}
.shadow .btn{
	position: absolute;
	left: 50%;
	top: 50%;
	cursor: pointer;
	transform: translate(-50%, -50%);
}
.video_text{
	margin-top: 21px;
	color: #fefefe;
    font-size: 16px;
}
.video_box{
	position: fixed;
    left: 0;
    top: 0;
    background: rgba(0,0,0,.7);
    text-align: center;
    z-index: 9999;
    width: 100%;
    height: 100%;
    display: none;
}
.video_box_content{
	max-width: 780px;
    vertical-align: middle;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
}
.video_box_content .close{
	cursor: pointer;
    position: absolute;
    top: 12px;
    right: 12px;
    width: 40px;
    height: 40px;
    background-image: url(../images/pop_close.png);
    background-size: cover;
    z-index: 1;
}
.video_box_content video{
	max-width: 100%;
}