.leftPart{
    width: 260px;
    border: 1px solid #e5e4e4;
    background-color: #fff
}
.leftPart li{
    height: 72px;
    line-height: 72px;
    text-align: center;
    border-bottom: 1px solid #e5e4e4;
}

.leftPart li .w{
    color: #030303;
    font-size: 18px;
    width: 90px;
    display: inline-block;
    text-align: left;
}
.leftPart li .dot{
    width: 11px;
    height: 11px;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    border-radius: 50%;
    display: inline-block;
    margin-right: 15px;
    background-color: #005893;
}
.leftPart li.active{
    background-color: #005893;
}
.leftPart li.active .dot{
    background-color: #fff;
}
.leftPart li.active .w{
    color: #fff;
}
.about{
    line-height: 0;
    font-size: 0;
    background-color: #f8f7f7;
}
.about .container{
    padding-bottom: 80px;
}
.about .wrapper{
    align-items: flex-start;
}
.t1{
    margin-bottom: 20px;
}
.t1 .leftT.underline{
    border-color: #717171;
    padding: 0;
    line-height: 45px;
}
.t1 .leftT .txt{
    line-height: 40px;
    border-bottom: 4px solid #030303;
    margin-bottom: -2px;
}
.t1 .leftT .icon-about{
    vertical-align: unset;
    margin-left: 15px;
}
.contentBox{
    flex: 1;
    background-color: #fff;
    padding: 45px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.contentBox .flexBox>div{
    flex: 1;
}
.txtBox p{
    font-size: 18px;
    color: #484948;
    line-height: 36px!important;
    text-indent: 36px;
}
.box2{
    margin: 50px 0;
}
.box3 .flexBox{
    text-align: center;
    background-color: #f8f7f7;
}
.box3 .flexBox:nth-child(even){
    flex-direction: row-reverse;
}
.box3 .slogan h3{
    color: #030303;
    font-size: 24px;
    border-bottom: 2px solid #030303;
    line-height: 40px;
    margin-bottom: 55px;
    display: inline-block;
    font-weight: normal;
}
.box3 .slogan span{
    color: #030303;
    font-size: 24px;
    border-bottom: 2px solid #030303;
    line-height: 40px;
    margin-bottom: 55px;
    display: inline-block;
}
.box3 .slogan p{
    color: #484948;
    font-size: 20px;
    line-height: 40px;
}
.box4{
    padding: 130px 0 40px;
}
.box4 .t{
    text-align: center;
    margin-bottom: 25px;
}
.box4 .t span{
    display: inline-block;
    letter-spacing: 1px;
    font-size: 24px;
    font-weight: bold;
    color: #030303;
    line-height: 50px;
    border-bottom: 4px solid #030303;
}
.box4 .development{
    position: relative;
}
.box4 .development .txtBox{
    width: 47%;
    -webkit-border-radius: 15px;
    -moz-border-radius: 15px;
    border-radius: 15px;
    flex: unset;
    background-color: #f8f7f7;
    padding: 20px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.box4 .item{
    position: relative;
    margin-bottom: 48px;
}
.box4 .development:before{
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    width: 1px;
    height: 110%;
    background-color: #005893;
}
.box4 .item:before{
    content: '';
    position: absolute;
    top: 12px;
    left: 50%;
    margin-left: -8px;
    border: 1px solid #005893;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-image: url("../img/dot.png");
}
.box4 .item:nth-child(odd){
    flex-direction: row-reverse;
}
.contentBox p{    box-sizing: border-box;
    margin-top: 0px;
    margin-bottom: 0px;
    font-size: 14px;
    color: rgb(51, 51, 51);
    line-height: 24px;
    text-indent: 2em;
    font-family: 微软雅黑;
    white-space: normal;
    /* background-color: rgb(255, 255, 255); */
}
.contentBox img{max-width: 100%;display: inline-block;}

/*移动端*/
@media screen and (max-width: 768px) {
    .contentBox iframe{
        display: block;
        width: 100%;
    }
}