/* ─── MOBILE ─── */
/* ≤ 1024px — 三列变两列 */
@media (max-width: 1024px) {
.about-intro__year{
    font-size: 5rem;
}
    /* .cert-grid 默认4列 → 2列 */
    .cert-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cert-grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cert-grid--5 {
        grid-template-columns: repeat(3, 1fr);
    }

    .cert-stats-band {
        grid-template-columns: 1fr;
    }

    .cert-feature {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .cert-feature--reverse {
        grid-template-columns: 1fr;
    }

    .cert-feature--reverse .cert-feature__text {
        order: 1;
    }

    .cert-feature--reverse .cert-feature__gallery {
        order: 2;
    }

    .cert-test-intro {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-wrap {
        grid-template-columns: 1fr;
        gap: 2.5rem
    }

    .addr-cards {
        grid-template-columns: 1fr 1fr
    }

    .ts-services__grid {
        grid-template-columns: repeat(2, 1fr)
    }

    .ts-gallery__grid {
        grid-template-columns: repeat(2, 1fr)
    }

    .ts-timeline {
        grid-template-columns: repeat(3, 1fr);
        gap: 2.5rem
    }

    .ts-timeline::before {
        display: none
    }

    .ts-step {
        padding-bottom: 0
    }
}

@media(max-width:900px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr)
    }
.about-intro__year{
    font-size: 4rem;
}

    .about-intro,
    .about-growth {
        grid-template-columns: 1fr;
    }

    .about-intro__img-wrap,
    .about-growth__images {
        height: 320px;
    }

    .about-mission__inner {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-applications {
        height: auto;
    }

    .about-applications__bg-img {
        display: none;
    }

    .about-applications__content {
        position: static;
        grid-template-columns: 1fr;
        padding: 4rem 5%;
        gap: 2.5rem;
    }

    .about-applications__overlay {
        display: none;
    }
}

@media(max-width:768px) {
    :root {
        --nav-h: 60px
    }

    nav {
        padding: 0 1.2rem
    }

    .logo-wrap img {
        height: 27px
    }

    .nav-links,
    .nav-right {
        display: none
    }

    .nav-hamburger {
        display: flex
    }

    /* banner */
    .banner {
        height: 88vw;
        min-height: 420px
    }

    .slide-content {
        padding: 0 5% 3rem;
        max-width: 100%
    }

    .slide-h1 {
        font-size: clamp(1.8rem, 8vw, 3rem)
    }

    .slide-en {
        font-size: 0.78rem;
        letter-spacing: 0.15em
    }

    .banner-arrows {
        display: none
    }

    /* top grid */
    .top-grid {
        grid-template-columns: 1fr
    }

    .vdivider {
        display: none
    }

    .top-col {
        padding: 2.5rem 5%;
        border-bottom: 1px solid rgba(26, 95, 168, 0.08)
    }

    .top-col:last-child {
        border-bottom: none
    }

    /* products */
    .products-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        padding: 3rem 5% 2rem
    }

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

    /* cases */
    .cases-section {
        padding: 3.5rem 5%
    }

    .cases-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem
    }

    .case-img {
        height: 160px
    }

    /* footer */
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
        padding: 3rem 5% 2rem
    }

    .footer-top>div:first-child {
        grid-column: 1/-1
    }

    .footer-desc {
        max-width: 100%
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem
    }

    .footer-icp {
        font-size: 0.62rem
    }

    /* 产品列表 */
    .page-hero {
        height: 200px
    }

    .page-hero-deco {
        display: none
    }

    .list-area {
        padding: 2rem 4% 1.5rem
    }

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

    .prod-img-wrap {
        height: 170px
    }


    /* 内容区 */
    .about-intro__body,
    .about-growth__body {
        padding: 3rem 5%;
    }

    .about-intro__img-wrap,
    .about-growth__images {
        height: 260px;
    }

    .about-mission {
        padding: 4rem 5%;
    }

    .about-partners {
        padding: 3.5rem 5%;
    }

    .partners-row {
        flex-direction: column;
    }

    /* CTA */
    .cta-strip {
        flex-direction: column;
        align-items: flex-start;
        padding: 3rem 5%;
        gap: 1.5rem;
    }

    .cta-strip__btns {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        text-align: center;
        justify-content: center;
        width: 100%;
    }

    /* cert grid */
    .cert-section {
        padding: 3rem 5%;
    }

    .cert-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .cert-header__stat {
        text-align: left;
    }

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

    .cert-grid--5 {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-wrap {
        padding: 2.5rem 5% 3rem;
        gap: 2rem
    }

    .qr-row {
        gap: 0.8rem
    }

    .map-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem
    }

    .addr-cards {
        grid-template-columns: 1fr
    }

    .ts-intro {
        grid-template-columns: 1fr
    }

    .ts-intro__img-wrap {
        height: 280px
    }

    .ts-intro__body {
        padding: 3rem 5%
    }

    .ts-services {
        padding: 3.5rem 5%
    }

    .ts-services__grid {
        grid-template-columns: 1fr
    }

    .ts-gallery {
        padding: 3.5rem 5%
    }

    .ts-gallery__header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem
    }

    .ts-process {
        padding: 3.5rem 5%
    }

    .ts-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem
    }

    .cta-strip {
        flex-direction: column;
        align-items: flex-start;
        padding: 3rem 5%;
        gap: 1.5rem
    }

    .cta-strip__btns {
        flex-direction: column;
        width: 100%
    }
    
    .news-detail__body img,
    .news-detail__body table,
    .news-detail__body video,
    .news-detail__body iframe {
        max-width: 100% !important;  /* 强行限制不溢出 */
        height: auto !important;      /* 图片/视频自适应比例 */
        display: block;
    }
    
    .news-related__text{
        white-space: normal;
    }
}

@media(max-width:480px) {
    .logo-wrap img{
        height: 20px;
    }
    .logo-text-main{
        font-size: 1.35rem;
    }
    
    .about-intro__year{
    font-size: 3rem;
}
    .banner {
        height: 110vw;
        min-height: 360px
    }

    .products-grid {
        grid-template-columns: 1fr 1fr
    }

    .cases-grid {
        grid-template-columns: 1fr
    }

    .case-img {
        height: 200px
    }

    .footer-top {
        grid-template-columns: 1fr
    }

    .section-wrap {
        padding: 3.5rem 5%
    }


    /* 产品列表 */
    .prod-grid {
        grid-template-columns: 1fr
    }

    .prod-img-wrap {
        height: 220px
    }

    .footer-top {
        grid-template-columns: 1fr
    }

    .pagination {
        gap: 0.3rem
    }

    .page-btn {
        min-width: 34px;
        height: 34px;
        font-size: 0.75rem
    }

    /* cert grid */
    .cert-grid {
        grid-template-columns: 1fr !important;
    }

    .cert-grid--3 {
        grid-template-columns: 1fr;
    }

    .cert-grid--5 {
        grid-template-columns: 1fr 1fr;
    }

    .qr-row {
        gap: 0.6rem
    }

    .ts-gallery__grid {
        grid-template-columns: 1fr 1fr
    }

    .ts-timeline {
        grid-template-columns: 1fr 1fr
    }
}