html{
	min-width: 1900px;
}

.header{
	width: 100%;
	height: 500px;
	background-image: url(../images/video_bj.jpg);
	background-repeat: no-repeat;
	background-size: cover;
}
.nav_ul li a {
    font-size: 16px;
    color: #fff;
}
.lianxi_span{
	color: #fff;
}
.lianxi_num{
	color: #fff;
}
.nav{
	border-bottom: 1px solid rgba(255,255,255,0.2);
}

.lianxi{
	border-left-color: rgba(255,255,255,0.2);
}

.header_con{
	width: 1200px;
	margin:0px auto;
}
.header_item1{
	padding-top: 115px;
}
.header_span2 .span1{
	font-size: 50px;
	color: #ffffff;
}
.header_span2 .span2{
	font-size: 30px;
	color: #ffffff;
	margin-top: 10px;
	margin-left: 20px;
}
.header_span2 .span3{
	width: 100px;
	height: 1px;
	background-color: #fff;
	margin-left: 20px;
	margin-top: 30px;
}
.header_span2{
	margin-top: 35px;
}
.header_span4{
	margin-top: 35px;
	max-width: 550px;
	font-size: 14.19px;
	color: #ffffff;
	line-height: 1.8;
}
.header_item2{
	margin-top: 275px;
}
.header_span5{
	font-size: 14.19px;
	color: #ffffff;
}

.main{
	width: 100%;
	background-color: #f0f0f0;
}

.main_con{
	padding-top: 100px;
}
.item_box{
	width: 1600px;
	margin:0px auto;
}
.item_box ul{
	overflow: hidden;
	margin-right: -50px;
	
	margin-bottom: -20px;
	margin-top: 0;
}

 .item_box li{
      float: left;
      width: 500px;
      margin-right: 50px;
      margin-bottom: 50px;
	  background-color: #fff;
	  transition: .2s linear all;
    }
.item_box li a{
	display: block;
}
.item_box li img{
	width: 500px;
	height: 290px;
}
.item_desc{
	height: 160px;
	box-sizing: border-box;
	padding:24px 30px;
	position: relative;
}
.item_name{
	font-size: 24px;
	color: #000000;
}
.item_guanjianci{
	font-size: 12px;
	color: #666666;
	margin-top: 25px;
}
.item_time{
	font-size: 14px;
	color: #666666;
	margin-top: 25px;
}
.play_btn{
	width: 60px;
	height: 24px;
	box-sizing: border-box;
	border:1px solid #ef0116;
	position: absolute;
	right: 30px;
	bottom: 30px;
}
.play_icon{
	width: 0;
	height: 0;
	content: '';
	border-top:4px solid transparent;
	border-bottom: 4px solid transparent;
	border-left: 4px solid #ef0116;
	position: absolute;
	left: 0;
	right: 0;
	top: 0;
	bottom: 0;
	margin:auto;
	z-index: 1;
}

.item_box li:hover {
	background-color: #ef0116;
}
.item_box li:hover .item_name{
	color: #fff;
}
.item_box li:hover .item_guanjianci{
	color: #fff;
}
.item_box li:hover .item_time{
	color: #fff;
}
.item_box li:hover .play_btn{
	border-color: #fff;
}

.item_box li:hover .play_icon{
	border-left-color: #fff;
}

.play_btn:hover{
	background-color: #fff;
}
.play_btn:hover ::after{
	width: 0;
	height: 0;
	content: '';
	border-top:4px solid transparent;
	border-bottom: 4px solid transparent;
	border-left: 4px solid #ef0116;
	position: absolute;
	left: -3px;
	right: 0;
	top: -4px;
	bottom: 0;
	z-index: 1;
}
.page{
	width: 100%;
	text-align: center;
	padding-bottom: 50px;
	padding-top: 30px;
}
.layui-laypage .layui-laypage-curr .layui-laypage-em{
	background-color: #ef0116;
}
.layui-laypage a:hover{
	color: #ef0116;
}
#demo0 a{
	margin-right: 10px;
}
#demo0 .layui-laypage-prev{
	margin-right: 20px;
}
#demo0 .layui-laypage-next{
	margin-left: 10px;
}
#demo0 .layui-laypage-curr{
	margin-right: 10px;
}