/*首页底部部分*/
footer{ width:100%; margin:auto;text-align:center; position:relative; z-index:100;}
footer p:nth-child(1){ margin-bottom:5%;}
footer nav{ width:100%; background:#f1f1f1; padding:5% 0 7% 0;}
footer nav ul{ width:90.625%; margin:auto; overflow:hidden;}
footer nav ul li{ width:25%; float:left;border-right:1px #333333 solid; box-sizing:border-box; line-height:1.35rem;}
footer nav ul li:last-child{ border-right:0;}
footer nav ul li a{ display:block; color:#333333;}
footer p:last-child{ line-height:2rem; margin-top:2%; clear:both; overflow:hidden;}

@media screen and (min-width:320px){

	.footer{font-size:12px}

	.footer_a{font-size:12px}

	#zh_ztgg div:nth-of-type(1){ height:8.5em}

}

@media screen and (min-width:360px){

	#zh_ztgg div:nth-of-type(1){ height:9em}

}

@media screen and (min-width:480px){

	.footer_a{font-size:21px}

	#zh_ztgg div:nth-of-type(1){ height:14em}

}

@media screen and (min-width:640px){

	.footer{font-size:24px}

	.footer_a{font-size:24px}

	#zh_ztgg div:nth-of-type(1){ height:17em}

}