.footer-idx{overflow:hidden;position:fixed;bottom:0;left:0;right:0;background-color:#fff;border-top:1px solid #f1f1f1;z-index:10;max-width: 100%;margin: 0 auto;}
.fd-nav{overflow:hidden;text-align:center;padding-bottom:6px;padding-top: 10px;}
.fd-nav a{display:block;float:left;width:20%;font-size:14px;color:#505050;line-height:16px}
.fd-nav a i{display:block;width:20px;height:20px;background-repeat:no-repeat;background-position:center center;-webkit-background-size:cover;-moz-background-size:cover;-ms-background-size:cover;-o-background-size:cover;background-size:cover;margin:0 auto}
.fd-nav a .icon2{display:none}
.fd-nav a.on{color:#f51f4e}
.fd-nav a.on .icon1{display:none}
.fd-nav a.on .icon2{display:block}