@charset "utf-8";
/* CSS Document */

.nav_about{ width:100%; height:auto; clear:both; background:#459df5}
.nav_about ul li{ float:left;  margin-right:30px}
.nav_about ul li a{ padding:0px 15px; line-height:50px; font-size:17px; color:#fff; text-decoration:none}
.nav_about ul li:hover{background:rgba(100,100,100,0.2);}

.part{ margin:20px auto; clear:both}

.top_img{background:url(http://www.100ec.cn/zt/upload_data/introduction/images/bj.jpg) repeat left top; clear:both;}
.top_img img{text-align:center; margin:0 auto}
.about{ height:auto; width:100%; background:url(../images/expert_bg.jpg) repeat top; background-size:cover; border-radius:5px; padding:20px 10px}
.about_title{ text-align:center; font-size:24px; border-bottom:3px solid #3FC; margin:30px 100px; position:relative; color:#fff; line-height:50px;}
.about_main{ padding:0px 50px;min-height: 400px;}
.about_main a,.about_main p{ color:#fff; font-size:15px}

@media (max-width:600px){
.nav_about{ overflow:scroll; height:50px; width:100%}
.nav_about ul{ width:1100px}
.footer{ width:100%}
.navi_box{ width:100%}
.about_title{ margin:0 auto; font-size:16px}
.about_main{ margin-top:20px; padding:0px 3%}
.about_main a,.about_main p{ color:#fff; font-size:13px}
}