#about-us-box {
    /* background: url("../images/background/2-5-bj.png") no-repeat; */
}
#about-us-box .about-item{
    height: 100%;
    padding: 20px;
}

#about-us-box .about-item img{
    height: 60px;
}

#about-us-box .about-item .title{
   font-weight: bold;
   margin-top: 20px;
   font-size: 16px;
}
#about-us-box .about-item .sub-title{
   margin-top: 6px;
   margin-bottom: 20px;
   font-size: 13px;
   color: var(--gray);
}

#about-us-box .about-item .item-child{
    /* font-size: 13px; */
 }

 #about-us-box .about-item .item-child+.item-child{
    margin-top: 8px;
 }