*{margin: 0;padding: 0;}
a{text-decoration: none;}
.dnn-z{
	width: 100%;
	height: 450px;
	/* height: 100vh; */
	background-image: url(../img/banner图.png);
	background-size: 100% 100%;
}
.dnn{
	position: relative;
}
.jiantou{
	float: right;
	width: 95px;
	height: 95px;
	border: solid 2px #ffffff;
	border-radius: 100%;
	margin-top: 740px;
	margin-right: 1500px;
}
.jianjie{
	margin-top: 190px;
	width: 680px;
	float: left;
}
.jianjie .jjbt{
    margin-left: 158px;
}
.jianjie .jjbt .y{
	width: 440px;
	overflow: hidden;
}
.jianjie .jjbt .y h1{
	float: left;
	font-size: 48px;
	font-weight: bold;
	font-stretch: normal;
	letter-spacing: 5px;
	color: #999999;
}
.jianjie .jjbt .y .line{
	float: left;
	margin-left: 25px;
	margin-top: 26px;
	margin-bottom: 10px;
	width: 62px;
	height: 2px;
	background-color: #999999;
	overflow: hidden;
}
.jianjie .jjbt .z{
	margin-top: 4px;
	font-size: 30px;
	font-weight: bold;
	font-stretch: normal;
	margin-bottom: 33px;
	letter-spacing: 3px;
	color: #ffffff;
	overflow: hidden;
}
.jianjie .zw{
	color: #c5c5c5;
}
.bjt{
	padding-top: 123px;
}
.bjt img{
	margin-left: 138px;
}
/* banner下-内容 */

.text{
	width: 941px;
	margin: 0 auto;
}
.text h1{
	font-size: 36px;
	font-weight: bold;
	font-stretch: normal;
	line-height: 92px;
	letter-spacing: 4px;
	color: #585858;
	text-align: center;
	margin-top: 60px;
	margin-bottom: 50px;
}
.text p{
	width: 941px;
	font-size: 18px;
	font-weight:normal;
	font-stretch: normal;
	color: #555555;
	padding-bottom: 30px;
}