body{ max-width:640px; margin:0 auto; background:#fff;}
ul,li {list-style-type:none;}
.clear{clear:both; height:0; line-height:0; font-size:0; *display:inline;/*IE only*/}
.fl { float:left;}
.fr { float:right;}
.k{width:100%; margin:0 auto; height:30px;}
.k1{width:100%; margin:0 auto; height:15px;}
.k2{width:100%; margin:0 auto; height:20px;}
.yewu span{
	    line-height: 25px;
    margin-bottom: 20px;
	    display: inline-block;
}
/*Top*/
.logo{text-align:center; width:100%; padding:5px 0;}


.about_top{width:100%; text-align:left; padding:5px 0; background:#1A568B;}
.about_top img{padding-left:10px;}

/*Nav*/
.nav{width:100%; height:90px; background:#1A568B;}
.nav ul{width:100%; padding-left:0;}
.nav ul li{width:25%; float:left; height:45px; text-align:center;}
.nav ul li a{height:45px; line-height:45px; color:#fff; display:block; margin:0 auto; font-size:15px;}
.nav ul li a:hover{color:#fff6e1;}
.nav ul li a.nav_hover{color:#fff6e1;}

/*gg*/
.gg{width:100%;}

.more a{width:100px; height:32px; line-height:32px; text-align:center; color:#fff; background:#1A568B; margin:0 auto; display:block; font-size:14px;}

/*业务范围*/
.title{text-align:center; color:#707070; font-size:22px;}
.title p{font-size:12px; text-transform:uppercase; margin:0;}

.ywfw{width:100%; height:250px; background: url(Index_ywfw_bg.jpg) #f7f7f7 no-repeat center bottom;}
.ywfw_content{width:96%; margin:0 auto;}
.ywfw_content ul{padding:0;}
.ywfw_content ul li{text-align:center; float:left; height:95px; margin:0 3%;}
.ywfw_content ul li p{margin:0; font-size:12px;margin-top: 10px;}
.ywfw_content ul li img{height:55px;}

/*工程项目*/
.case{width:100%;height:380px; background: url(Index_case_bg.jpg) no-repeat 50%; background-size:cover;}
.case_title{text-align:center; color:#fff; font-size:22px;}
.case_title p{font-size:12px; text-transform:uppercase; margin:0;}


/*新闻中心*/
.news{width:96%; margin:0 auto;}

/*底部版权*/
.copyright{text-align:center; line-height:30px; padding:20px 0; font-size:14px; background:#1A568B; color:#fff;}
.copyright a{color:#fff;}
.copyright b{font-size:16px; font-weight:bold;}

/*内页Css*/
.about_nav{width:100%; margin:0 auto; border-bottom:1px solid #e4e4e4; background:#fafafa;}
.about_nav ul{padding-left:0; width:96%; margin:0 auto;}
.about_nav ul li{width:23%; height:25px; margin:6px 1%; float:left; text-align:center; font-size:13px;}
.about_nav ul li a{width:100%; height:25px; line-height:25px; float:left; display:block; color:#333333;}
.about_nav ul li.a_cate_hover a{background:#1A568B; color:#fff;}

.about_navt{width:100%; margin:0 auto; border-bottom:1px solid #e5e5e5; background:#f2f2f2;}
.about_navt ul{padding-left:0; width:100%; margin:0 auto;}
.about_navt ul li{width:31%; height:25px; margin:3px 1%; float:left; text-align:center; font-size:13px;}
.about_navt ul li a{width:100%; height:25px; line-height:25px; float:left; display:block; color:#333333;}
.about_navt ul li a:hover{background:#1A568B; color:#fff;}
.about_navt ul li.a_cate_hover a{background:#1A568B; color:#fff;}

.p_navt{width:100%; margin:0 auto; border-bottom:1px solid #e5e5e5; background:#f2f2f2; height:35px; display:block;}

.about_wz{width:100%; height:40px; line-height:40px; text-align:left; text-indent:10px; border-bottom:1px solid #e4e4e4; font-size:13px;}

.about_body_title{font-size:20px; font-weight:bold; text-align:center; width:100%; height:50px; line-height:50px; background:#006c36; color:#fff;}

.about_item{width:98%; margin:0 auto; margin-top:30px; padding:0;}
.about_item li{width:160px; height:112px; float:left; margin-right:5px; margin-bottom:10px; position:relative; overflow:hidden;}
.about_item li p{position:absolute; width:157px; height:25px; line-height:25px; text-align:center; background:url(cy_bg.png) repeat; color:#fff; z-index:9; bottom:0; font-size:13px; padding:0;}
.about_item li img{width:160px; height:112px; border:0; padding:0; margin:0;}