.flow .step{list-style:none;padding:40px 0}.flow .step li{padding:10px 30px;border-bottom:1px dotted #cbcbcb}.flow .step li .item{padding:6px 20px;position:relative;font-size:14px}.flow .step li .item:before{content:'';position:absolute;width:1px;height:70%;top:10px;left:0;background:#cbcbcb;background:linear-gradient(180deg,#cbcbcb,#e8e8e8)}.flow .step li .item .num{color:#d60000;font-size:20px;padding:0 5px}