.m_body{ max-width: 640px; margin: 0 auto; background:#fff;}
.logo img { width: 100%; height: 100%; }
.nav { }
.nav a { text-align: center; width: 23%; display: block; float: left;  margin-left:.1rem;
position: relative;  font-size:.24rem;
height: 100%; line-height: 200%; color: #fff;  margin-bottom:.1rem;
}
.nav img { width: 100%; height: 100%; }
.nav span { display: block; position: absolute; top: 0; left: 0; margin-left: 17%; }
.banner img { width: 100%; height: 100%; }
.footer{ margin-top:.4rem; text-align:center; padding-bottom:.9rem;}
.footer ul{ background:url(../images/foot-bg1.jpg) repeat-x left top;}
.footer ul li{ width:25%; float:left; height50px; line-height:50px;}
.footer ul li a{ font-size:.26rem; text-align:center; display:block; color:#fff; border-right:1px solid #4dcb4e;}
.foot_content{width:100%;float:left;}
.foot_left{width:30%;float:left;margin-left:2%;}
.foot_left img{width:100%;height:100%;}
.foot_right{width:67%;float:left;}
.foot_right p{text-align:left;margin-left:.2rem;}
.foot_right img{ padding:.2rem 5% 0 2%;width:90%; height:100%;}
.footer p{ color:#a8a8a8; font-size:.22rem; margin-top:.1rem;}
.footer p.p_1{ color:#6f6f6f; font-size:.22rem;}
.foot_sm{width:100%;float:left;margin:0 0 .2rem 0;height:1.2rem;}
.foot_sm p{margin:0;}
.top_an{ position:fixed; left:0; bottom:0;}
.top_an a{ width:33.3%; float:left;}
.top_an a.a_1{ margin-top:-.35rem;}
.top_an img{ width:100%; height:100%;}