@media (max-width: 480px) {
    .index_news_flex {
        flex-direction: column;
        margin: 30px 0;
    }

    .index-news-img {
        margin-bottom: 30px;
    }

    .index-news-img, .index-news-list {
        width: 100%;
    }

    #news_slide .swiper-slide, #index-about .swiper-slide {
        height: 300px;
        max-height: 300px;
        width: 100%;
    }

    .index-news-list-item {
        margin-top: 30px;
    }

    .news-box .news_title {
        font-size: 16px;
    }

    .news-list ul li a .news_bt {
        font-size: 16px;
        max-width: 60%;
    }

    .news-box .news_intro {
        font-size: 14px;
    }

    .index-news-imgs {
        flex-direction: column;
    }

    .index-news-imgs .one {
        margin-bottom: 30px;
    }

    .index-news-imgs .one, .index-news-imgs .two {
        width: 100%;
    }

    .index-links-item {
        width: calc(100% / 2 - 10px);
    }

    .index-about-flex, .index-news2-flex, .index-message-flex {
        flex-direction: column;
    }

    .index-about-l, .index-about-r {
        margin: 0;
        width: 100%;
    }

    .index-news2-item-list .news-list a {
        max-width: 70%;
    }

    .index-news2-item-list .news-list span {
        font-size: 16px;
    }

    .index-about-r {
        margin-top: 30px;
    }

    .index-about-r-intro, .index-about-r-intro p, .index-about-r-intro p span, .index-about-r-intro span {
        font-size: 15px;
        line-height: 28px;
    }

    .index-news2-item-list .news-time {
        font-size: 14px;
    }

    .index-news2-item {
        width: 100%;
    }

    .index-message-l, .index-message-r {
        width: 100%;
    }

    .index-message-l {
        padding: 25px;
        margin-bottom: 30px;
    }

    .index-message-l .index-message-l-subname {
        font-size: 25px;
        padding-bottom: 0;
    }

    .index-message-r .layui-form .layui-form-item.layui-btn-ITem {
        text-align: center;
    }

    .picMarquee-left .bd ul li {
        margin: 0 8px;
        overflow: hidden;
        text-align: center;
        width: 100%;
    }

    .index {
        padding: 30px 0;
    }

    .technology_title, .cese_title {
        max-width: 70%;
    }

    .news-index-box-img {
        width: 120px;
    }

    .news-index-box-right {
        width: calc(100% - 135px);
    }

    .technology_flex, .cese_flex {
        min-height: 100px !important;
    }

    .bigbox > .imgbox {
        width: 100%;
        margin-right: 0;
    }

    .news-index-box-right .news-title {
        font-size: 16px;
    }

    .news-index-box-right .news-intro {
        font-size: 14px;
    }

    .map {
        width: 100%;
        height: 300px;
    }
      .index-links-item:nth-child(even) {
        background-color: #ffffff;
        border:1px solid #f1f5f6;
    }
}