body,ul ,li,dd,dt,h3,p,h1,h4,span{margin: 0;padding: 0; font-family: "微软雅黑";}
a{font-family: "微软雅黑";}
body{min-width: 800px; font-size: 16px; }
.clear{clear: both;}
.nav_bg{width: 100%;
background: #1a1d24;
padding-bottom: 2px;
 color: #757575;
 position: fixed;
 top: 0px;
 z-index: 99999;
}
.nav_bg .content{
	max-width: 1270px;
	width: 85%;
	margin-left: auto;
	margin-right: auto;
	min-width: 800px;
}
.logo{float: left;}
.nav{    float: left;
    margin-left: 15%;}
.logo{width: 61px; margin-top: 20px;}
.logo img{width: 61px; height: 55px;}
.nav{width: 50%;}
.nav ul li{
	float: left;
	list-style: none;
	width: 25%;
	text-align: center;
	margin-top: 52px;height: 40px;
}
.nav ul li a{text-decoration: none; color: #757575;}
.nav ul li a:hover{color: #FFFFFF;}
.se{ float:left; margin-left: 3%; margin-top: 40px; border: 1px solid #757575; border-radius: 50px; padding:5px 0;text-align: center;}
.nav ul .on ,.nav ul li:hover{background: url(../img/index/on.png) center bottom no-repeat;}
.nav ul .on a{color: #fff;}
.phone_img,.phone_num{float: left; color: #757575; }
.phone_num{margin-right: 11px;}
.phone_img{width: 11%;    margin-left: 11px;}
.phone_img img{width: 80%;}
.nav_top{border-bottom: 1px solid #999; padding: 10px 0;}
.top_l{float: left; color: #757575; font-size: 12px;}
.top_r{float: right;}
.top_r a{ color: #757575; text-decoration: none;}
.top_l li{float: left; list-style: none;}
.line{margin: 0 20px;}
/*底部样式*/
.footer{background: #111820; margin-top: 180px; padding-top: 75px; color: #757575; font-size: 15px; padding-bottom: 29px;}
.ft_content{width: 70%; min-width: 800px; margin-left: auto; margin-right: auto;}
.ft_left{float: left;}
.ft_right{float: right; margin-right: 15%;    margin-top: -20px;  text-align: center;}
.b_log,.b_font{float: left;}
.b_font{margin-left: 25px;}
.lang p{margin-top: 15px;}

.right_er{position: fixed; right: 20px; top: 50%; z-index: 99989;}
.aligncenter{text-align: center;}
.alignright{text-align: right;}
.alignleft{text-align: left;}
.mrt{padding-top: 30px;}