.flexslider{

    background-image: url("../img/slider_4.jpeg");
    background-position-y: 50%;

    background-position-x: 10%;
    background-repeat: no-repeat;
    background-repeat: repeat-x;
}

.logo img{
    margin: 10px 0 0 10px;
}

.baner{

    display: flex;
    justify-content: center;
    overflow: hidden;
    height: 100%;
}



.row{
    display: flex;
    align-items: center;
    width: 100%;
    margin-bottom: 10px;
    margin-top: 80px;
}

.row img{
    margin: 0 5px;
    width: calc(100% - 10px);
    height: 300px;
}

.title{
    font-size: 20px;
    font-weight: bolder;
    font-family: '微软雅黑';
    margin-bottom: 10px;
}
.col-50{
    width: 50%;
}

.col-100{
    width: 80%;
}