.bg{
    position: fixed;
    top: 100px;
    z-index: 999;
    width: 100%;
    height: 80px;
    background: rgba(255,255,255,0.9);
}
.bg li{
    float: left;
    height: 80px;
    width: 20%;
    font-size: 22px;
    line-height: 22px;
    color: #555;
    cursor: pointer;
    margin: 0;
}
.bg .box{
    margin: 20px 0;
    height: 40px;
    width: 100%;
    padding-left: 30px;
    box-sizing: border-box;
    border-right: 1px solid #999;
}
.bg li:nth-last-child(1) .box{
    border:none;
}
.bg .active{
    background: #fff;
    border: 0;
}
.bg img,span{
    float: left;
    height: 40px;
    line-height: 40px;
}
.bg img{
    margin: 4px 16px 0 0;
    height: 32px;
    width: 32px;
}
.sec{
    background: #F5F5F5;
    text-align: center;
}
.busCard2{
    font-size: 18px;
    color: #555;
    text-align: left;
    line-height: 28px;
    margin: 120px 0 ;
    display: inline-block;
}
.busCard2 .left,.right{
    float: left;
}
.busCard2  .img,img{
    height: 520px;
    width: 520px;
    border-radius: 9px;
}
.busCard2  .right{
    margin-left: 40px;
    width:calc(100% - 560px);
    box-sizing: border-box;
}
.busCard2  .tit{
    margin: 20px 0 0 0;
    font-size: 28px;
    color: #222;
    line-height: 42px;
}
.busCard2  .txt{
    margin: 20px 0;
}
.busCard2 h6{
    margin-bottom: 10px;
}
.busCard2  .busCard_box{
    margin-top: 20px;
}

.banner img{
    width: 100%;
    height: 660px;
    border-radius: 0;
}
.box img{
    border-radius: 0;
}

.business_box{
    display: inline-block;
    width: 100%;
}
.busCard{
    width: 520px;
    font-size: 18px;
    color: #555;
    line-height: 28px;
    margin: 120px 0;
    float: left;
}
.busCard .busCardTow{
    margin: 120px 0 120px 160px;
}
.busCard .img,.busCard img{
    height: 340px;
    width: 100%;
    border-radius: 9px;
}
.busCard .tit{
    margin: 30px 0 24px;
    font-size: 28px;
    color: #222;
    line-height: 42px;
    letter-spacing: 1px;
}
.busCard .txt{
    margin-bottom: 30px;
}
.busCard h6{
    margin-bottom: 10px;
}
.busCard .busCard_box{
    margin-top: 30px;
}

.marL160{
    margin-left: 160px;
}