* { padding: 0; margin: 0; list-style: none;}

.history h2 { position: relative; font-size: 32px; color:#000; line-height: 1;}
.history h2:before { content: ""; position: absolute; left:-48px; top:50%; width: 17px; height: 17px; border-radius: 100%; background: #fff; border:5px solid #ff5a2b; transform: translateY(-50%);box-sizing: border-box;}
.history div { position: relative;padding: 0 0 0 48px;}
.history div:before { content: ""; position: absolute; left:8px; top:0; width: 2px; height: 100%; background: #ddd;}
.history div:first-child:before { top:10px; height:calc(100% - 10px);}
.history ol { padding: 20px 0 74px; }
.history li { font-size: 17px; color:#000; line-height: 29px;}