.swiper-container {
    text-align: center;
    display: inline-block;
    width: 100%;
    box-sizing: border-box;
    margin-top: 15px; 
}

.swiper-center {
    margin: auto;
    width: 1150px;
}


.el-carousel__item h3 {
    color: #475669;
    font-size: 14px;
    opacity: 0.75;
    line-height: 150px;
    margin: 0;
}

.el-carousel__item:nth-child(2n) {
    background-color: #99a9bf;
}

.el-carousel__item:nth-child(2n+1) {
    background-color: #d3dce6;
}