.banner{
    width: 100%;
    height: 500px;
    background: url("/images/about/banner.png") no-repeat center center;
    background-size: cover;
    position: relative;
}
.banner .t1{
    line-height: 66px;
    height: 66px;
    font-weight: 700;
    font-size: 60px;
    position: absolute;
    width: 100%;
    text-align: center;
    top: 185px;
    color: #fff;
}
.banner .t2{
    line-height: 76px;
    height: 76px;
    font-size: 43px;
    position: absolute;
    width: 100%;
    text-align: center;
    top: 250px;
    color: #fff;
}
.time-content{
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}
.time-content .y-list{
    width: 100%;
    overflow: hidden;
}
.time-content .y-list li {
    margin-bottom: 90px;
    overflow: hidden;
}
.time-content .y-list li .y-left,
.time-content .y-list li .year-center,
.time-content .y-list li .y-right {
    float: left;
}
.y-list>li:nth-child(n+2) .list {
    height: 60px;
}
.y-left {
    width: 250px;
    padding-top: 25px;
}
.y-left .title{
    line-height: 24px;
    text-align: right;
    color: #333333;
    font-size: 18px;
}
.y-left .img{
    width: 250px;
    height: 148px;
    margin-top: 38px;
}
.y-left .img img{
    width: 100%;
    height: 100%;
}
.y-right {
    position: relative;
    margin-left: 45px;
}
.y-right .top{
    overflow: hidden;
    margin-bottom: 38px;
}
.y-right .top .y-num{
    float: left;
    font-size:60px;
    font-family:Arial;
    font-weight:normal;
    color:rgba(51,51,51,1);
    opacity:0.17;
    line-height: 48px;
}
.y-right .list{
    padding-left: 9px;
    position: relative;
    -webkit-transition: height 1s;
    -moz-transition: height 1s;
    -ms-transition: height 1s;
    -o-transition: height 1s;
    transition: height 1s;
    height: auto;
}
.y-right .list li{
    margin-bottom: 32px;
    overflow: hidden;
    margin-left: 10px;
}
.y-right .list li:last-child{
    margin-bottom: 0;
}
.list .y-line{
    position: absolute;
    left: 0;
    top: 0;
    bottom: 10px;
    width: 9px;
}
.list .y-line .cir{
    position: absolute;
    width: 9px;
    height: 9px;
    background: #45CBCA;
    border-radius: 50%;
    -webkit-border-radius: 50%;
    left: 0;
    top: 0;
}
.list .y-line .line{
    position: absolute;
    width: 1px;
    background: #EEEEEE;
    bottom: 0;
    top: 20px;
    left: 4px;
}
.list li span:nth-child(1){
    float: left;
    height: 32px;
    text-align: center;
    line-height: 32px;
    font-size: 14px;
    color: #333;
}
.list li span:nth-child(2){
    float: left;
    text-align: left;
    line-height: 32px;
    font-size: 14px;
    color: #333;
}