a {color:#555;}
.fl {float:left;}
.fr {float:right;}
.clearFix::after {content:'';display:block;clear:both;zoom:1;overflow:hidden;}
.header {max-width:640px;height:auto;margin:0 auto;background:#fff;}
.footer {position:fixed;bottom:0;left:0;width:100%;z-index:899;background:#2878ff;}
.footer ul li {width:25%;padding-top:15px;background:#2878ff;text-align:center;}
.footer ul li a {display:block;}
.footer ul li a img {width:25%;}
.footer ul li a p {font-size:22px;line-height:2;color:#fff;}
.header .n_nav {height:42px;padding:14px 0 12px 0;overflow:hidden;background:#2878ff;}
.header .n_nav ul {width:300%;display:table-cell;}
.header .n_nav ul li {display:table-cell;white-space:nowrap;}
.header .n_nav ul li a {display:block;padding:0 27px;border-right:2px solid #fff;}
.header .n_nav ul li a span {display:block;width:100%;font-size:24px;color:#fff;padding:0 5px;text-align:center;line-height:36px;}
.main {max-width:640px;margin:auto;padding:0px 4%;}
.main .main_head {margin-top:30px;margin-bottom:20px;}
.main .main_head p {font-size:24px;color:#666;border-left:4px solid #2878ff;padding-left:20px;line-height:1.2;margin:23px 0;}