.development_main{position: relative;width: 100%; background: url(../images/development.jpg) no-repeat center top;overflow: hidden;background-size:100% 100% ;}
/*.development_main a.last{width: 37px;height: 82px;display: block;background: url(../images/jiantou.png);margin: auto;}
.development_main a.next{width: 37px;height: 82px;display: block;background: url(../images/jiantou2.png);margin: auto;}*/

.development_main .tt{ width:100%; padding:5% 0 0; text-align:center;}
.development_main .main{100%;overflow: hidden;padding-bottom:50px;overflow: hidden;margin: auto;}
.development_main .main .lfjT{width: 10%;float: left;margin-top:165px}
.development_main .main .rtjT{width: 10%;float: left;margin-top:465px ;}
.development_main .main ul{width: 80%;overflow: hidden;margin:0 auto;display:flex;}
.development_main .main ul li{height: 600px;flex:1;}
.development_main .main ul li p{color: #dedede;font-size: 14px;}
.development_main .main ul li div{height: 300px;position: relative;}
.development_main .main ul li div.top{border-bottom: 3px solid #22D3B6;}
.development_main .main ul li div.bottom{border-top: 3px solid #22D3B6;}
.development_main .main ul li .text.top i{display:block;width: 50px;height: 110px;background: url(../images/development_year_down.png);margin: auto;position: absolute;bottom:0;left: 50%;;margin-left: -25px;}
.development_main .main ul li .text.bottom i{display:block;width: 50px;height: 110px;background: url(../images/development_year_up.png);margin: auto;position: absolute;top:0;left: 50%;;margin-left: -25px;}
.development_main .main ul li .text.top p{width: 160px;position: absolute;bottom: 110px;margin-left: -80px;left: 50%;text-align: center;font-size:12px ;line-height: 22px;}
.development_main .main ul li .text.bottom p{width: 160px;position: absolute;top: 110px;margin-left: -80px;left: 50%;text-align: center;font-size:12px ;line-height: 22px;}
.development_main .main ul li .year p{text-align: center;font-size: 38px;color: #22D3B6;height: 40px;line-height: 40px;}
.development_main .main ul li .year.top p{text-align: center;font-size: 38px;color: #22D3B6;height: 40px;line-height: 40px;position: absolute;bottom: 0;left: 50%;margin-left: -45px;}