.bannerContainer{
    overflow: hidden;
    width:75%;
    margin:auto;
    height:20%;
    min-width: 900px;
    
}
.bannerInnerContainer{
    width:300%;
}
.banner{
    float:left;
    width:33.3%;
    
}
.bannerContainer img{
    width:100%;
    height:20%;
}
.leftArrow{
    position: absolute;
    top: 255px;
    left: 13%;
    width:2%;
    cursor: pointer;
    display: none;
}
.rightArrow{
    position: absolute;
    top: 255px;
    right: 13%;
    width:2%;
    cursor: pointer;
}
.bannerLines{
   position: absolute;
   top: 140px;
   left: 65%;
   font-size: 2.5em;
   color: rgb(53, 68, 81);
}
.bannerLines .smallline{
    font-size:20px;
    color:#8ba6d4;
}
.head{
    height:5em;
}
.centerInfo{
    display: flex;
    width: 80%;
    margin:auto;
    justify-content:space-evenly;
    margin-top:1em;    
}
.centerInfo .item{
    /*border: 1px solid rgb(127, 34, 34);*/
    width: 30%;
    height: 130px;
    border-radius:10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: rgb(248, 248, 248);
    font-size: smaller;
}
.centerInfo .item .icon{
    padding-top: 20px;
    height: 30%;
}
.centerInfo .item img{
    height: 70%;
}
.centerInfo .item .des{
    height: 15%;
    font-size: 12px;
}
.centerInfo .item .main{
    height: 25%;
    
    font-size:medium;
}
.blue{
    background-color: #54a4dc;
}
.yellow{
    background-color: #ffbf37;
}
.green{
    background-color: #46c6ce;
}
.indexServiceItem{
    display: flex;
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
}
.indexServiceItem div{
    width: 25%;
    margin: 1em;
}
.indexServiceItem div img{
    width: 100%;
}
@media screen and (max-width: 900px){
    #fbBlock{
        display: none;
    }
    .bannerLines{
        top:150px;
    }
    .bannerContainer{
        min-width: 300px;
        width: 100%;
        height: 30%;
    }
    
    .centerInfo {
        width: 80%;
        flex-direction: column;
    }
    .centerInfo .item{
        width: 100%;
        margin-bottom: 2em;
    }
    .centerInfo .item .main{
        font-size: 18px;
        height: 35%;
        margin: 0.5em;
        color: #fff;
    }
    .centerInfo .item .des{
        font-size: 18px;
        color: #fff;
    }
}