.cert_slider {
    .index-section {
        align-items: center;
        background: url(/meitu_bg.webp) no-repeat 0 0;
        background-size: 100% 100%;
        display: flex;
        height: 100vh;
        justify-content: center;
        margin: 0;
        overflow: hidden;
        position: relative;
        z-index: 9;
    }

    .swiper-container {
        list-style: none;
        margin-left: auto;
        margin-right: auto;
        overflow: hidden;
        padding: 0;
        position: relative;
        z-index: 1;
    }

    .index-section #certify .swiper-slide img{
        display: block;
        height: 100%;
        -o-object-fit: cover;
        object-fit: cover;
        width: 100%;
    }

    .index-section .swiper-button-prev {
        left: 5%;
    }

    .index-section .swiper-button-next, .index-section .swiper-button-prev {
        background-color: transparent;
        background-image: none;
        background-size: 150%;
        border-radius: 100%;
        height: 50px;
        margin-top: -25px;
        top: 45%;
        width: 50px;
    }

    .index-section .swiper-button-next {
        right: 5%;
    }

    .index-section #certify .swiper-slide img {
        display: block;
        height: 100%;
        -o-object-fit: cover;
        object-fit: cover;
        width: 100%;
    }
}