#tongji-top-bbs a{
    color: #F96203;
}
.about-box{
    position: relative;
    width: 100%;
    background-color: rgb(250, 250, 250);
    overflow: hidden;
    /* border: 1px solid transparent; */
}
.about-box .about-nav{
    width: 1190px;
    height: 60px;
    margin: 50px auto 0;
    background-color: white;
}
.about-box .about-nav .about-nav-box{
    width: 100%;
    height: 100%;
    display: flex;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
}
.about-box .about-nav .about-nav-box .about-nav-item{
    flex: 1;
    -webkit-box-flex: 1;
    -moz-box-flex: 1;
    -webkit-flex: 1;
    -ms-flex: 1;
    height: 100%;
    text-align: center;
    line-height: 60px;
    color: #999999;
    width: 14.2%;
    font-size: 16px;
}
/* .about-nav .about-nav-box .about-nav-item:nth-child(1){
    color: black;
} */
.about-box .about-body{
    width: 1190px;
    margin: 0px auto;
    background-color: white;
    text-align: center;
}
.about-box .about-body img{
    width: 1190px;
}