.development_path .main_text{padding-bottom:50px;position:relative}.development_path .main_text .time_line{width:3px;height:calc(100% - 60px);background-color:#d6d3d6;position:absolute;top:14px;left:64px}.development_path .main_text .year{margin-top:32px;font-size:16px}.development_path .main_text .year .head_year h3{width:46px;display:inline-block;vertical-align:middle}.development_path .main_text .year .head_year img{width:19px;height:19px;vertical-align:middle;margin-left:5px;position:relative}.development_path .main_text .year ul{margin-left:16px}.development_path .main_text .year ul li{margin-top:10px}.development_path .main_text .year ul li .mon_box{font-style:normal;vertical-align:middle;display:inline-block;width:36px}.development_path .main_text .year ul li .dot{width:13px;height:13px;background:#fff;border:2px solid #6e6e6e;border-radius:50%;display:inline-block;vertical-align:middle;margin:0 2px;position:relative}.development_path .main_text .year ul li .event{margin-left:17px;position:relative;width:780px;min-height:57px;border:1px solid #e4e4e4;border-radius:4px;display:inline-block;vertical-align:top;line-height:57px;padding-left:18px;top:-17px}.development_path .main_text .year ul li .event .left_arrow{position:absolute}.development_path .main_text .year ul li .event .left_arrow:after,.development_path .main_text .year ul li .event .left_arrow:before{position:absolute;content:'';border-top:10px transparent dashed;border-left:10px transparent dashed;border-bottom:10px transparent dashed;border-right:10px solid #fff;left:-38px;top:18px}.development_path .main_text .year ul li .event .left_arrow:before{border-right:10px solid #e4e4e4}.development_path .main_text .year ul li .event .left_arrow:after{left:-37px;border-right:10px solid #fff}.development_path .main_text .year ul li .event:hover{border:1px solid #dd412c}.development_path .main_text .year ul li .event:hover .left_arrow{position:absolute}.development_path .main_text .year ul li .event:hover .left_arrow:after,.development_path .main_text .year ul li .event:hover .left_arrow:before{position:absolute;content:'';border-top:10px transparent dashed;border-left:10px transparent dashed;border-bottom:10px transparent dashed;border-right:10px solid #fff;left:-38px;top:18px}.development_path .main_text .year ul li .event:hover .left_arrow:before{border-right:10px solid #dd412c}.development_path .main_text .year ul li .event:hover .left_arrow:after{left:-37px;border-right:10px solid #fff}