.join-main{margin-top:40px;margin-bottom:100px;overflow:hidden;z-index:90;}
.main-head span{display:block;font-size:24px;font-weight:bold;color:#3b3b3b;}
.main-head em{display:block;font-size:24px;font-weight:bold;color:#b81a3a;}
.main-head p{font-size:12px;color:#a0a0a0;padding-bottom:40px;}
.join-list li{width:100%;background:#efefef;margin-bottom:40px;}

.list-top{cursor:pointer;position:relative;width:100%;height:100px;line-height:100px;}
.list-top span{position:relative;display:inline-block;font-size:16px;color:#a0a0a0;padding-left:25px;padding-right:25px;}
.list-top span:before{position:absolute;top:39px;left:0;content:"";display:block;width:22px;height:22px;background:url(../images/join/icon.png) no-repeat;}
span.name{margin-left:14px;font-size:24px;font-weight:bold;color:#3b3b3b;}
span.name:before{background:none;}
span.add:before{background-position:-37px -5px;}
span.number:before{background-position:-69px -5px;}
/* .list-top:before{position:absolute;top:39px;right:30px;content:"";display:block;width:22px;height:22px;background:url(../images/join/icon.png) no-repeat -5px -37px;} */
.list-top:before{position:absolute;top:39px;right:30px;content:"";display:block;width:22px;height:22px;} 
.list-main{overflow:hidden;display:none;}
.list-main-box{width:455px;padding-bottom:35px;}
.list-main .float-left{float:left;margin-left:40px;}
.list-main .float-right{float:right;margin-right:28px;}
.describe{font-size:16px;font-weight:bold;color:#fff;padding-bottom:10px;}
.detail{font-size:16px;color:#fff;line-height:26px;text-align: justify;}

.join-list li.show{background:#b81a3a;transition:all 0.4s linear;}
.join-list li.show span{color:#fff;}
.join-list li.show span.add:before{background-position: -5px -5px;}
.join-list li.show span.number:before{background-position: -37px -37px;}
.join-list li.show .list-top:before{background-position: -69px -37px;}

#join .bg_right_2{top:590px;right:235px;}
#join .bg_left_2{top:657px;}