@media screen and (max-width:768px) {
    html, body {
        font-size: 14px;
    }

    body {
        padding-top: 0;
    }

    .header-wrap {
        height: auto;
        min-height: 52px;
        padding: 12px 4%;
        flex-wrap: wrap;
        gap: 10px;
        position: fixed;
        top: 0;
        left: 0;
        z-index: 9999;
    }

    .media-frame {
        width: 100%;
        height: 100%;
        border: 5px solid #ffffff;
        box-shadow: 0 3px 8px rgba(0, 0, 0, 0.12);
        overflow: hidden;
    }
    /* 导航横向排列，不隐藏、不垂直、无汉堡 */
    .nav-list {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 15px;
        order: 3;
        width: 100%;
    }

        .nav-list a {
            font-size: 12px;
            white-space: nowrap;
        }

    .mobile-menu-btn {
        display: none;
    }

    .lang-select {
        height: 30px;
        font-size: 12px;
    }

    /* wap头部登录按钮 窄尺寸，和PC统一 */
    .header-login-btn {
        background: #ffffff;
        color: #4b2482;
        border: 1px solid #4b2482;
        padding: 3px 8px;
        font-size: 12px;
        border-radius: 5px;
    }

        .header-login-btn:hover {
            background: #f9f3fc;
        }

    .logout-header-btn {
        color: #4b2482;
        font-size: 12px;
    }

    .banner-wrap {
        height: 220px;
    }

    .banner-dot {
        width: 8px;
        height: 8px;
    }

    .section-title-wrap {
        width: 90%;
        margin: 40px auto 20px;
    }

    .more-link {
        font-size: 13px;
    }

    .intro-section {
        width: 90%;
        margin: 30px auto;
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .intro-media-box {
        height: 220px;
    }

    .project-list {
        width: 90%;
        grid-template-columns: 1fr;
    }

    .project-card {
        height: auto;
    }

    .project-card-img {
        height: 160px;
    }

    .video-section {
        width: 90%;
        margin: 40px auto;
        grid-template-columns: 1fr;
    }

    .video-box {
        width: 100%;
        height: 200px;
    }

    .news-list {
        width: 90%;
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .news-card-img {
        width: 100%;
        max-width: 330px;
        margin: 0 auto;
    }

    .footer-wrap {
        height: auto;
        grid-template-columns: 1fr;
        gap: 25px;
        padding: 30px 4%;
    }

    .float-service {
        right: 12px;
        bottom: 20px;
        width: 36px;
        height: 36px;
    }

        .float-service img {
            width: 35px;
            height: 35px;
        }

    .footer-bottom {
        font-size: 9px;
        padding: 10px 4%;
    }
}