*{
	font-family: 微软雅黑;
}
.intro_s1{
	text-align: center;
	margin-top: 40px;
}
.title{
	font-size: 80px;
	font-family:微软雅黑;
	text-align: center;
}
.color{
	text-align: center;

}
.left{
	font-size: 20px;
	font-family: 微软雅黑;
	float: left;
	margin-left: 500px;
	margin-top: 50px;	
}
.right{
	float: left;
	margin-left: 200px;
	font-size: 20px;
	margin-top: 50px;
}
.type{
	padding-top: 20px;
}
.last{
	padding-bottom: 20px;
	padding-top: 20px;
}
.intro_s2_intro2{
	color: grey;
}
.content{
	text-align: center;
}
.tech{
	text-align: center;
}
.intro_s2_intro3{
	text-align: center;
	margin-top: 40px;
	padding-top: 20px;
	padding-bottom: 20px;
}
.max{
	font-size: 16px;
	line-height: 1.6;
	font-weight: bold;
	font-family: 微软雅黑;
	margin-top: 40px;
	margin-bottom: 40px;
}
.max1{
	margin-top: 20px;
	margin-bottom: 20px;
}
.step2{
	text-align: center;
}