.head{  top:0; width:100%; z-index:2000;min-width:320px;max-width:640px; position:relative;margin:auto;left:0;right:0;}



.nav{ width:100%; background:#ffffff; padding:2% 0;}
.nav ul li{ width:16.5%; float:left; text-align:center;color:#781d76; font-weight:bold}
.nav ul li a{ color:#781d76}

.footer{ width:100%; margin:8% auto 0 auto; text-align:center; margin-bottom:6%; position:relative;}
.foot_dh{ width:100%; background:#ebebeb; padding:2% 0; margin-bottom:4%; border-bottom:1px solid #cdcccc;border-top:1px solid #cdcccc;}
.foot_dh ul li a{ color:#781d76;}
.foot_dh ul li{ width:25%; box-sizing:border-box; float:left; text-align:center;}
.foot_dh ul li.lz{ border-right:none;}
.footer p{ color:#515151; margin-top:1%;}
.foot_xs{ position:absolute; top:50%; left:90%}


@media screen and (min-width:500px) and (max-width:640px){
	
	}
@media screen and (min-width:400px) and (max-width:499px){
	.nav{padding:3% 0;}
	}
@media screen and (min-width:360px) and (max-width:399px) {
	.nav{padding:3% 0;}
	}
@media screen and (max-width:359px) {
	.nav{padding:3% 0;}
	}