@media (max-width: 768px) {

    .home,
    .about,
    .product,
    .video,
    .case,
    .article,
    .contact {
        height: calc(100vh);
    }

    /* 容器统一 */

    .container {
        flex-direction: column !important;

        /* padding: 20px !important; */
    }

    /* 头部 */

    .header {
        position: fixed;
        height: 60px;
        z-index: 1000;
        width: 100%;
    }

    .header .logo-box {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }

    nav li.active {
        color: #333;
    }

    .header .nav .logo {
        height: 40px;
        align-items: left;
    }

    .header .nav .logo img {
        height: 40px;
    }

    /* ..nav-list {
        position: fixed;
        left: 0;
        top: 60px;
        width: 100%;
        background: #fff;
        flex-direction: column;
        display: none !important;
    }



    .nav-list.open {
        display: flex !important;
        background: rgba(255, 255, 255, .65);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(0, 0, 0, .05);
    }


    .nav-toggle {
        display: flex;
    }

    .nav-active {
        display: none;
    }

    .nav-list.open li.active a {
        color: #00aaff;
    }

    .nav-list {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        display: none;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    } */
    /* 显示汉堡按钮 */
    /* 显示汉堡按钮 */
    .nav-toggle {
        display: flex;
    }

    /* 关闭 PC 滑块 */
    .nav-active {
        display: none;
    }

    /* 抽屉菜单主体 */

    .nav-list {
        position: fixed;
        top: 0;
        right: 0;
        width: 70%;
        max-width: 280px;
        height: 100vh;

        display: flex;
        flex-direction: column;

        padding-top: 80px;

        background: #fff;
        box-shadow: -6px 0 20px rgba(0, 0, 0, .15);

        transform: translateX(100%);
        transition: transform .35s ease;

        z-index: 1001;
        overflow-y: auto;

    }

    .nav-list.open {
        transform: translateX(0);
    }

    /* 一级菜单 */

    .nav-list>li {
        width: 100%;
        height: auto !important;
        margin: 0;
        display: block;
        border-bottom: 1px solid #eee;
    }

    .nav-list>li>a {
        height: 50px;
        display: flex;
        align-items: center;
        padding: 0 20px;
        font-size: 15px;
        color: #333;
    }

    /* 有二级 */

    .has-sub {
        height: auto;
    }

    /* + - */

    .has-sub>a {
        position: relative;
    }

    .toggle-sub {
        position: absolute;
        right: 20px;
        font-size: 18px;
        width: 30px;
        height: 30px;
        display: flex !important;
        align-items: center;
        justify-content: center;
    }

    .has-sub.open .toggle-sub {
        transform: rotate(45deg);
    }

    /* 二级菜单（关键：取消 flex） */

    .sub-menu {
        display: none;
        background: #f7f7f7;
    }

    .has-sub.open .sub-menu {
        display: block;
    }

    .sub-menu li {
        height: 44px;
        display: flex;
        align-items: center;
    }

    .sub-menu a {
        width: 100%;
        padding-left: 50px;
        font-size: 14px;
        color: #666 !important;
    }

    /* 高亮 */

    .nav-list li.active>a {
        color: #0094ff;
    }

    .nav-mask {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.4);
        opacity: 0;
        visibility: hidden;
        transition: all 0.35s ease;
        z-index: 1000;
    }

    .nav-mask.show {
        opacity: 1;
        visibility: visible;
    }

    .home .fp-overflow,
    .footer .fp-overflow {
        margin-top: 0px;
    }

    .fp-overflow {
        margin-top: 60px;
    }

    .swiper {
        height: calc(100vh) !important;
    }

    /* HOME */
    .home .content1 {
        width: 90%;
        padding: 20px;
    }

    .home .content1 .app-logo {
        font-size: 30px;
        margin-bottom: 10px;
        margin-right: 20px;
        width: 1em;
        word-break: break-all;
    }

    .home .content1 .right-text {
        width: 2em;
        font-size: 16px;
    }

    .home .content1 .right-text-wrap {
        right: 40px;
        bottom: 25px;
        top: auto;
        transform: none;
    }

    .home .content1 .dev-title {
        font-size: 18px;
        margin-bottom: 10px;
        margin-top: 0px;
    }

    .home .content1 .ios-apk {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .home .content1 .china-title {
        font-size: 20px;
        color: #000;
    }

    .home .content1 .subtitle {
        font-size: 14px;
        margin-bottom: 15px;
    }

    .home .content1 .english-subtitle {
        font-size: 16px;
        margin-bottom: 25px;
    }

    .home .content1 .features {

        gap: 10px;
        flex-direction: column;
        margin-top: 10px;
        margin-left: 20px;
    }

    .home .content1 .feature-item {
        font-size: 14px;

    }

    /* ABOUT */
    .about .container {
        margin: 20px;
        padding: 10px;
    }

    .about .company {
        padding-right: 0;
    }

    .about .company h4 {
        font-size: 16px;
    }

    .about .company h2 {
        font-size: 26px;
        margin-bottom: 10px;
    }

    .about .total {
        flex-wrap: wrap;
        gap: 15px !important;
        margin-bottom: 10px !important;
    }

    .about .total .item {
        /* width: 25%; */
        text-align: center;
    }

    .about .total .item .num {
        font-size: 18px;
    }

    .about .total .item .text {
        margin-bottom: 0px;
        font-size: 14px;
    }

    .about p {
        font-size: 14px;
        line-height: 20px;
    }

    /* PRODUCT */
    .product-swiper {
        padding: 20px 0;
        max-height: 260px;
        margin-bottom: 10px;
    }

    .product .container {
        margin: 20px;
        padding: 10px;
    }

    .product h3 {
        font-size: 24px;
    }

    .product .filter {
        margin-bottom: 10px;
    }

    .product .filter span {
        padding: 4px 8px;
    }

    .product-swiper .swiper-slide {
        height: 220px;
    }

    /* VIDEO */
    .video .container {
        padding: 30px 10px;
        margin: 20px;
    }




    .video-page {
        flex-direction: column;
    }

    .video video {
        height: 240px;
    }

    .video-side {
        width: 100%;
        grid-auto-flow: column;
        grid-template-columns: unset;
        grid-auto-columns: 70%;
        overflow-x: auto;
        padding-bottom: 10px;
        -webkit-overflow-scrolling: touch;
        grid-auto-rows: 140px;
    }

    .side-item {
        height: 140px;
    }

    .side-mask {
        opacity: 1 !important;
        transform: none !important;
        background: linear-gradient(to top, rgba(0, 0, 0, .5), transparent);
        font-size: 13px;
        padding: 8px;
    }

    .video-side::-webkit-scrollbar {
        display: none;
    }

    .video-side::-webkit-scrollbar {
        display: none;
    }

    .video-info h2 {
        font-size: 18px;
    }

    .article .action {
        margin: 0 0 10px 0;
    }
    .article .btn-more{
        padding: 6px 12px;
    }
    .article .article-text {
        font-size: 20px;
    }
    .article .article-title {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
    .article .container {
        margin: 0px;
        padding: 10px;
    }

    .article .article-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .article .article-item {
        display: flex;
        flex-direction: column;
    }

    .article .article-item .article-content {
        padding: 5px;
    }

    .article .article-item .article-title {
        font-size: 14px;
        font-weight: 400;
    }

    .article .article-item .article-desc {
        display: none;
    }

    .article .article-item.is-main {
        grid-row: 1;
    }

    .article .article-item.is-main img {
        height: 100px;
    }

    .article .article-item img {
        height: 100px;
    }

    /* CONTACT */
    .case .scroll img {
        width: 100px;
        height: auto;
    }

    .contact .container {
        margin: 20px;
        padding: 10px;
        background: rgba(255, 255, 255, .65);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(0, 0, 0, .05);
    }

    .contact .map {
        width: 100%;
        min-height: 200px;
    }

    .contact .row {
        margin-bottom: 5px;
    }

    .contact .info {
        width: 100%;
        padding-left: 0;
        margin-top: 10px;
    }

    .contact .qr {
        margin-top: 10px;
    }

    .contact .more {
        margin-top: 10px;
    }

    /* FOOTER */

    .footer {
        padding: 10px;
        text-align: center;
    }

    .footer-bottom {
        margin-top: 10px;
    }
}