.my_kefu { position: fixed;width: auto;top: 90%;right: 10px;z-index: 99;}
#head_block{position: fixed;z-index: 997;width:100%;}
.navbar-default{height:80px;background:#6D3691;}
.navbar-header>a>img{width:280px;padding:10px 0px 0px 40px;}
.navbar-collapse .navbar-nav{padding:15px 0px 0px 120px;}
.navbar-default .navbar-nav > li > a {color:#fff;}
.navbar-default .navbar-nav .open >a:hover{border-bottom: 3px solid #fff;color:#Fff;}
.nav .open>a{background:#6d3691;}
.collapse>ul>li{min-width: 88px;text-align:center;padding:0px 10px;}
.navbar-default {border:0px solid #fff;margin-bottom: 0px;}
 footer {width: 100%;position: relative;overflow: hidden;text-align: center;padding: 32px 0 45px 0;background: #000;color: #fff;}