.product_banner{
	width: 100%;
	overflow: hidden;
}
.product_banner img{
	width: 100%;
}
.product_content{
	width: 100%;
	overflow: hidden;
	background-color: #fbfbfb;
}
.product_title{
	width: 915px;
	padding: 55px 0 85px;
	margin: 0 auto;
	text-align: center;
	color: #909090;
	font-size: 14px;
	line-height: 20px;
}
.product_title h1{
	font-size: 40px;
	color: #000;
	margin-bottom: 25px;
}
.product_valve{
	width: 100%;
	background-color: #fff;
	overflow: hidden;
}
.product_valve a{
	display: block;
	width: 100%;
	height: 580px;
	overflow: hidden;
	position: relative;
}
.product_valve a .container{
	height: 100%;
}
.product_text{
	width: 490px;
	color: #646464;
	font-size: 14px;
	line-height: 25px;
	position: relative;
	top: 50%;
	margin-top: -139.5px;
}
.product_text h3{
	color: #dc252a;
	font-size: 36px;
	margin-bottom: 15px;
}
.product_text span{
	display: block;
	margin-top: 25px;
	text-decoration: underline !important;
}
.product_valve a:hover span{
	color: #dc252a;
}
.product_valve a:nth-of-type(2n+1) .one_bg{
	width: calc(50% + 70px);
	height:calc(100% + 120px);
	position: absolute;
	right: 0;
	top:-60px;
	border: 2px solid #dc252a;
	border-right: none;
	padding: 18px 0px 18px 18px;
	border-radius: 350px 0 0 350px;
	overflow: hidden;
}
.product_valve a:nth-of-type(2n+1) .one_bg .two_bg{
	position: relative;
	width: 100%;
	height:100%;
	border-radius: 330px 0 0 330px;
	border: 25px solid #dc252a;
	border-right: none;
	overflow: hidden;
	line-height: 610px;
	background-position: center left;
	background-repeat: no-repeat;
	background-size:100% auto;
}
.product_valve a:nth-of-type(2n) .one_bg{
	width: calc(50% + 70px);
	height:calc(100% + 120px);
	position: absolute;
	left: 0;
	top:-60px;
	border: 2px solid #898989;
	border-left: none;
	padding: 18px 18px 18px 0px;
	border-radius: 0 350px 350px 0;
	overflow: hidden;
}
.product_valve a:nth-of-type(2n) .one_bg .two_bg{
	position: relative;
	width: 100%;
	height:100%;
	border-radius:0 330px 330px 0;
	border: 25px solid #898989;
	border-left: none;
	overflow: hidden;
	line-height: 610px;
	background-position: center right;
	background-repeat: no-repeat;
	background-size:100% auto;
}
.product_valve a:nth-of-type(2n) .product_text{
	float: right;
}
.two_bg img{
	width: 100%;
	display: none;
}
@media only screen and (max-width:767px ) {
	.product_title{
		width: 100%;
		padding: 55px 15px 10px;
		margin: 0 auto;
		text-align: center;
		color: #909090;
		font-size: 14px;
		line-height: 20px;
	}
	.product_title h1{
		font-size: 30px;
		color: #000;
		margin-bottom: 25px;
	}
	.product_text{
		width: 100%;
		color: #646464;
		font-size: 14px;
		line-height: 20px;
		position: relative;
		top: 0;
		margin: 10px 0;
	}
	.product_valve a{
		display: block;
		width: 100%;
		height: auto;
		overflow: hidden;
		position: relative;
		margin-top: 20px;
	}
	.product_valve a:nth-of-type(2n+1) .one_bg{
		width: 100%;
		height:auto;
		position: relative;
		right: 0;
		top:0;
		border: none;
		padding: 0px;
		border-radius: 0 ;
		overflow: hidden;
	}
	.product_valve a:nth-of-type(2n+1) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:auto;
		border-radius:0;
		border: none;
		overflow: hidden;
		line-height: normal;
		background-position: center left;
		background-repeat: no-repeat;
		background-size:100% auto;
	}
	.product_valve a:nth-of-type(2n) .one_bg{
		width:100%;
		height:auto;
		position: relative;
		left: 0;
		top:0;
		border: none;
		padding:  0px;
		border-radius: 0;
		overflow: hidden;
	}
	.product_valve a:nth-of-type(2n) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:auto;
		border-radius: 0;
		border: none;
		overflow: hidden;
		line-height: normal;
		background-position: center right;
		background-repeat: no-repeat;
		background-size:100% auto;
	}
	.two_bg img{
		width: 100%;
		display: block;
	}
	.product_text h3{
		color: #dc252a;
		font-size: 24px;
		margin-bottom: 10px;
	}
}
@media only screen and (min-width:768px ) {
	.product_title{
		width: 90%;
		padding: 55px 0 85px;
		margin: 0 auto;
		text-align: center;
		color: #909090;
		font-size: 14px;
		line-height: 20px;
	}
	.product_text{
		width: 285px;
		color: #646464;
		font-size: 14px;
		line-height: 20px;
		position: relative;
		top: 50%;
		margin-top: -139.5px;
	}
	.product_valve a{
		display: block;
		width: 100%;
		height: 400px;
		overflow: hidden;
		position: relative;
	}
	.product_valve a:nth-of-type(2n+1) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:100%;
		border-radius: 330px 0 0 330px;
		border: 25px solid #dc252a;
		border-right: none;
		overflow: hidden;
		line-height: 610px;
		background-position: center left;
		background-repeat: no-repeat;
		background-size: auto 100%;
	}
	.product_valve a:nth-of-type(2n) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:100%;
		border-radius:0 330px 330px 0;
		border: 25px solid #898989;
		border-left: none;
		overflow: hidden;
		line-height: 610px;
		background-position: center right;
		background-repeat: no-repeat;
		background-size: auto 100%;
	}
}
@media only screen and (min-width:992px ) {
	.product_title{
		width: 915px;
		padding: 55px 0 85px;
		margin: 0 auto;
		text-align: center;
		color: #909090;
		font-size: 14px;
		line-height: 20px;
	}
	.product_text{
		width: 400px;
		color: #646464;
		font-size: 14px;
		line-height: 25px;
		position: relative;
		top: 50%;
		margin-top: -139.5px;
	}
	.product_valve a{
		display: block;
		width: 100%;
		height: 400px;
		overflow: hidden;
		position: relative;
	}
	.product_valve a:nth-of-type(2n+1) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:100%;
		border-radius: 330px 0 0 330px;
		border: 25px solid #dc252a;
		border-right: none;
		overflow: hidden;
		line-height: 610px;
		background-position: center left;
		background-repeat: no-repeat;
		background-size: auto 100%;
	}
	.product_valve a:nth-of-type(2n) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:100%;
		border-radius:0 330px 330px 0;
		border: 25px solid #898989;
		border-left: none;
		overflow: hidden;
		line-height: 610px;
		background-position: center right;
		background-repeat: no-repeat;
		background-size: auto 100%;
	}
}
@media only screen and (min-width:1200px ) {
	.product_text{
		width: 490px;
		color: #646464;
		font-size: 14px;
		line-height: 25px;
		position: relative;
		top: 50%;
		margin-top: -139.5px;
	}
	.product_valve a{
		display: block;
		width: 100%;
		height: 580px;
		overflow: hidden;
		position: relative;
	}
	.product_valve a:nth-of-type(2n+1) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:100%;
		border-radius: 330px 0 0 330px;
		border: 25px solid #dc252a;
		border-right: none;
		overflow: hidden;
		line-height: 610px;
		background-position: center left;
		background-repeat: no-repeat;
		background-size:100% auto;
	}
	.product_valve a:nth-of-type(2n) .one_bg .two_bg{
		position: relative;
		width: 100%;
		height:100%;
		border-radius:0 330px 330px 0;
		border: 25px solid #898989;
		border-left: none;
		overflow: hidden;
		line-height: 610px;
		background-position: center right;
		background-repeat: no-repeat;
		background-size:100% auto;
	}
}