.characteristic4-list{margin-top:40px;display:flex;justify-content:space-between}.characteristic4-list .characteristic4-item{width:340px;text-align:center;margin-right:80px}.characteristic4-list .characteristic4-item:last-child{margin-right:0}.characteristic4-list .characteristic4-item .characteristic4-img{width:80px;height:90px;margin:0 auto;display:inline-block}.characteristic4-item-title{margin:4px auto 0;line-height:30px;font-size:18px;font-weight:700;color:#333}.characteristic4-introduce{margin:12px auto 0;line-height:24px;font-size:14px;color:#666;text-align:center}#mobile{display:none}