/*/topic/315special20180315/css/join_btn.css*/
.btn.join_btn{width: 140px;text-align: center;float: right;height: 40px;background: #fff;font-size: 16px;line-height: 40px;color: #1a4e92;border-radius: 5px;margin-left: 10px;transition: all 0.3s linear;transform-origin: center center;}.btn.join_btn:hover{background: #efefef;box-shadow: 0 0 10px #424242;}.join_null_space,.join_footer{display: none}@media all and (max-width:768px){.btn.join_btn{display: none}.nullDiv,.footer{display: none}.join_null_space{display: block;width: 100%;height: 0.8rem;}.join_footer{display:  block;position: fixed;width: 100%;height: 0.9rem;background: #e3e3e3;text-align: center;left: 0;bottom: 0;box-shadow:0 0 0.2rem #3b6eab;z-index: 10;font-size: 0}.footer_btn{display: inline-block;width: 30%;height: 0.6rem;margin: 0.15rem 0.4rem;color: #fff;font-size: 0.28rem;background: #1a4e92;line-height: 0.6rem;border-radius: 5px;box-shadow: 0 0 0.1rem #667a8a;}.footer_btn:last-child{background: #ffb700;box-shadow: 0 0 0.1rem #667a8a;}}@media all and (max-width:360px) {.footer_btn{line-height: 0.65rem}}