*{
	margin: 0;
	padding: 0;
}
 @media screen and (min-width: 320px) and (max-width:1280px){
.slide{
	z-index: 999;
    text-align: center;
    border: medium none;
    left: 50%;
    margin: 0 auto 0 -50%;
    overflow: hidden;
    position: relative;
    visibility: visible;
    width:100%;
	height:510px;
}
}
 @media screen and (min-width:1003px) and (max-width:1285px){
.slide{
	z-index: 999;
    text-align: center;
    border: medium none;
    left: 50%;
    margin: 0 auto 0 -50%;
    overflow: hidden;
    position: relative;
    visibility: visible;
    width:100%;
	height:580px;
}
}
 @media screen and (min-width:1290px) and (max-width:1445px){
.slide{
	z-index: 999;
    text-align: center;
    border: medium none;
    left: 50%;
    margin: 0 auto 0 -50%;
    overflow: hidden;
    position: relative;
    visibility: visible;
    width:100%;
	height:615px;
}
}
 @media screen and (min-width:1450px) and (max-width:1660px){
.slide{
	z-index: 999;
    text-align: center;
    border: medium none;
    left: 50%;
    margin: 0 auto 0 -50%;
    overflow: hidden;
    position: relative;
    visibility: visible;
    width:100%;
	height:740px;
}
}
 @media screen and (min-width:1660px) and (max-width:1990px){
.slide{
	z-index: 999;
    text-align: center;
    border: medium none;
    left: 50%;
    margin: 0 auto 0 -50%;
    overflow: hidden;
    position: relative;
    visibility: visible;
    width:100%;
	height:870px;
}
}
 @media screen and (min-width:2000px) and (max-width:2600px){
.slide{
	z-index: 999;
    text-align: center;
    border: medium none;
    left: 50%;
    margin: 0 auto 0 -50%;
    overflow: hidden;
    position: relative;
    visibility: visible;
    width:100%;
	height:1170px;
}
}
.slide ul{
	list-style-type: none;
}
.next_btn{
	position: absolute;
	width: 25px;
	height: 26px;
	line-height: 26px;
	text-align: center;
	opacity:0;
	vertical-align: middle;
	right: 5px;
	top: 50%;
	color: #fff;
	font-family: arial;
	font-size: 20px;
	font-weight: bold;
	display: inline-block;
	cursor: pointer;
	font-family: "宋体";
}
.prev_btn{
	position: absolute;
	width: 25px;
	height: 26px;
	line-height: 26px;
	text-align: center;
	opacity:0;
	vertical-align: middle;
	left: 5px;
	top: 50%;
	color: #fff;
	font-family: "宋体";
	font-size: 20px;
	font-weight: bold;
	display: inline-block;
	cursor: pointer;
}
.slide ul:after{
	content: '';
	clear: both;
	display: block;
}
.slide ul li{
	float: left;
	text-align: center;
}
.slide ul li img{
	vertical-align: middle;
}
.slide .circle_btn{
	position: absolute;
	bottom:32px;
	text-align: center;
	left: 0;
	display: table;
	margin: 0 auto;
	width: 100%;
}
.slide .circle_btn button{
	box-sizing: content-box;
	opacity: 1;
	outline: none;
	border: none;
	height:12px;
	width:12px;
	background-color:#FFF;
	margin: 2px 5px;
	overflow: hidden;
	cursor: pointer;
	border-radius: 100%;
}
.slide .circle_btn button.active{
	background:#e31639;
}
#bgvid{
    width: 100% !important;
 }