*{
	margin: 0;
	padding: 0;
}
ul,ol{
	list-style: none;
}
a{
	text-decoration: none;
}
br{
	clear: both;
}
img{
	vertical-align: top;
	border-style:none
}
p{
	font-family:"微软雅黑"
}
h1{
	font-family:"微软雅黑"
}
h2{
	font-family:"微软雅黑"
}
h3{
	font-family:"微软雅黑"
}
h4{
	font-family:"微软雅黑"
}
h5{
	font-family:"微软雅黑"
}
/*头部导航*/
.wrap{
	background-color: #323333;
}
.logo {
	float: left;
	margin: 6px 0px;
}
.nav{
	width: 1200px;
	height: 48px;
	margin: auto;
}
.nav-ul{
	margin-left: 250px;
}
.nav li{
	float:left;
	width:70px;
	margin-left: 40px;
	margin-right: 40px;
}
.nav-ul a{
	text-align: center;
	font-size: 14px;
	font-weight: normal;
	color: #fff;
	display: block;
	line-height: 48px;
}
.nav-ul a:hover{
	/*border-bottom: 3px solid #de8800;*/ 
	color: #ffa414;
}
/*banner*/
.banner{
	height: 400px;
	background: url(../img/baoxian-banner.png) no-repeat center;
}
.banner-cont{
	margin: auto ;
	width: 800px;	
	padding-top: 150px;
	box-sizing: border-box;
}	
.banner-cont h1{
	color: #FFFFFF;
	font-size: 40px;
	line-height: 58px;
	font-weight:normal;
}
.banner-cont span{
	font-weight:normal;
	font-size: 24px;
	font-weight:normal;
}
/*内容盒子*/
.yy-box{
	width: 800px;
	margin: 30px auto;
}
<!--内容--概述>
.gaishu li{
	float: left;
}
.gaishu-heitiao{
	float: left;
	width: 16px;
	height: 86px;
	background-color:#999999
}
.gaishu-p{
	width: 744px;
	font-size: 18px;
	line-height: 30px;
	font-weight:normal;
	color: #666;
	margin-left: 40px;
}
/*<!--公路桥梁-->*/	
.yy-qiaoliang h4{
	font-size: 24px;
	line-height: 58px;
	font-weight:normal;
	color: #333;
	margin-top: 20px;
}
.yy-qiaoliang li{
	float: left;
}
.qiaoliang-p1{
	width: 360px;
	font-size: 14px;
	line-height: 26px;
	color: #333;
	float: left;
	margin: 0px 30px 30px 0px;
}
.qiaoliang-p2{
	width: 360px;
	font-size: 14px;
	line-height: 26px;
	color: #333;
	float: left;
	margin: 20px 0px 30px 30px;
}
.qiaoliang-img2{
	margin-top: 24px;
	float: left;
}
/*案例链接*/
.yy-anli{
	margin-top: 60px;
}
.yy-anli h4{
	font-size: 24px;
	line-height: 58px;
	font-weight:normal;
	color: #333;
	margin-top: 20px;
}
.yy-anli li{
	float: left;
	width: 240px;
	font-size: 14px;
	line-height: 20px;
	text-align: center;
}
.yy-anli-li2{
	margin: 0px 20px 8px 20px;
}
.yy-anli img{
	margin-bottom: 8px;
}
.yy-anli a{
	color: #333;
	display: block;
}
.yy-anli a:hover {
	filter:alpha(Opacity=50);
	-moz-opacity:0.5;opacity: 0.5;
}
/*页脚*/
.footer-box{
	background-color: #2c2e37;
}
.footer{
	width: 1200px;
	height: 320px;
	margin: auto;
}
.footer p{
	color: rgb(245,245,245);
}
.footer h3{
	color: rgb(245,245,245);
}
.footer-about{
	float: left;
	width: 366px;
	margin: 30px 280px 20px 0px;
}
.footer-about h3{
	/*color: rgb(245,245,245);*/
	font-size: 16px;
	line-height: 40px;
	font-weight: normal;
}
.footer-about p{
	/*color: rgba(255,255,255,0.8);*/
	font-size: 14px;
	line-height: 26px;
	margin-bottom: 40px;
}
.footer-about img{
	margin-right: 30px;
}
.footer-contact{
	float: left;
	width: 190px;
	margin-top: 30px;
	margin-right: 80px;
}
.footer-contact h3{
	/*color: rgba(255,255,255,0.6);*/
	font-size: 16px;
	line-height: 40px;
	font-weight: normal;
}
.footer-contact p{
	/*color: rgba(255,255,255,0.8);*/
	font-size: 12px;
	line-height: 26px;
	margin-bottom: 10px;
}
.footer-contact span{
	/*margin-top: 20px;*/
	line-height: 70px;
	font-size: 14px;
	font-weight: bold;
}
.footer-contact li{
	float: left;
	margin-right: 20px;
	text-align: center;
}
.footer-product{
	float: left;
	margin-top: 30px;
	margin-right: 80px;
	text-align: left;
}
.footer-product h3{
	/*color: rgba(255,255,255,0.6);*/
	font-size: 16px;
	line-height: 40px;
	font-weight: normal;
}
.footer-product li{
	/*color: rgba(255,255,255,0.8);*/
	font-size: 12px;
	line-height: 26px;
	margin-bottom: 4px;
}
.footer-product a{
	display: block;
	color: rgb(245,245,245);
}
.footer-product a:hover{
	color: #de8800;
}
.footer-service{
	margin-top: 60px;
}
.footer-solution{
	float: left;
	margin-top: 30px;
	text-align: center;
}
.footer-solution h3{
	/*color: rgba(255,255,255,0.6);*/
	font-size: 16px;
	line-height: 40px;
	font-weight: normal;
}
.footer-solution li{
	/*color: rgba(255,255,255,0.8);*/
	font-size: 12px;
	line-height: 26px;
	margin-bottom: 4px;
}
.footer-solution a{
	display: block;
	color: rgb(245,245,245);
}
.footer-solution a:hover{
	color: #de8800;
}
/*版权信息*/
.copyright-box{
	background-color: #1d1e23;
}
.copyright{
	width: 1200px;
	margin: auto;
}
.copyright p{
	color: #FFFFFF;
	font-size: 12px;
	text-align: center;
	line-height: 36px;
}.copyright span{
	margin-left: 60px;
}