/**
 * 响应式样式 (Responsive Styles)
 * @version 3.0.0
 * @description 所有模块的媒体查询样式 - 统一管理
 * @updated 2026-01-05
 *
 * 断点说明 (使用CSS变量 --bp-*):
 * - 5120px+: 8K/5K超大屏
 * - 3840px+: 4K显示器
 * - 2560px+: 2K显示器
 * - 1920px+: Full HD大屏
 * - 1440px+: 大屏桌面
 * - 1200px: 标准桌面
 * - 1024px: 平板端
 * - 767px: 移动端
 * - 479px: 小屏手机
 */

/* ============================================
   减少动画偏好 (Reduced Motion)
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    [data-animate] {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* ============================================
   大屏桌面 (1440px+)
   ============================================ */
@media (min-width: 1440px) {
    /* 导航栏 */
    .nav {
        height: 80px;
    }

    body {
        padding-top: 80px;
    }

    .nav__logo img {
        height: 60px;
    }

    .nav__menu > li > a {
        line-height: 80px;
        padding: 0 28px;
        font-size: 17px;
    }

    /* 首页模块 */
    .section {
        padding: 100px 0;
    }

    .section__title {
        font-size: 42px;
    }

    /* 容器宽度 */
    .section__container,
    .page-main__container,
    .site-footer__container {
        max-width: var(--container-desktop, 1320px);
        margin: 0 auto;
    }
}

/* ============================================
   Full HD 大屏 (1920px+)
   ============================================ */
@media (min-width: 1920px) {
    /* 容器宽度扩展 */
    .section__container,
    .page-main__container,
    .site-footer__container {
        max-width: var(--container-fullhd, 1600px);
    }

    /* 导航栏 */
    .nav__menu > li > a {
        padding: 0 32px;
        font-size: 18px;
    }

    /* 网格布局扩展 */
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }

    .cases-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }

    .news-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 28px;
    }

    /* 统计数字 */
    .stats-grid {
        padding: 60px 50px;
    }

    .stat-num {
        font-size: 56px;
    }
}

/* ============================================
   2K 显示器 (2560px+)
   ============================================ */
@media (min-width: 2560px) {
    /* 容器宽度 */
    .section__container,
    .page-main__container,
    .site-footer__container {
        max-width: var(--container-2k, 1800px);
    }

    /* 基础字体放大 */
    html {
        font-size: 17px;
    }

    /* 导航栏 */
    .nav {
        height: 90px;
    }

    body {
        padding-top: 90px;
    }

    .nav__logo img {
        height: 70px;
    }

    .nav__menu > li > a {
        line-height: 90px;
        padding: 0 36px;
        font-size: 19px;
    }

    /* 首页模块 */
    .section {
        padding: 120px 0;
    }

    .section__title {
        font-size: 48px;
    }

    .section__subtitle {
        font-size: 16px;
    }

    /* 网格布局 */
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
    }

    .cases-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
    }

    .news-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 32px;
    }

    /* 卡片放大 */
    .product-card__body {
        padding: 24px;
    }

    .product-card__title {
        font-size: 18px;
    }

    .news-card__body {
        padding: 28px;
    }

    .news-card__title {
        font-size: 20px;
    }

    /* 按钮 */
    .btn {
        padding: 18px 40px;
        font-size: 17px;
    }

    /* 统计数字 */
    .stats-grid {
        padding: 70px 60px;
        gap: 40px;
    }

    .stat-num {
        font-size: 64px;
    }

    .stat-label {
        font-size: 18px;
    }
}

/* ============================================
   4K 显示器 (3840px+)
   ============================================ */
@media (min-width: 3840px) {
    /* 容器宽度 */
    .section__container,
    .page-main__container,
    .site-footer__container {
        max-width: var(--container-4k, 2000px);
    }

    /* 基础字体放大 */
    html {
        font-size: 20px;
    }

    /* 导航栏 */
    .nav {
        height: 110px;
    }

    body {
        padding-top: 110px;
    }

    .nav__logo img {
        height: 85px;
    }

    .nav__menu > li > a {
        line-height: 110px;
        padding: 0 44px;
        font-size: 22px;
    }

    /* 首页模块 */
    .section {
        padding: 150px 0;
    }

    .section__title {
        font-size: 60px;
    }

    .section__subtitle {
        font-size: 20px;
    }

    /* 网格布局 */
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }

    .cases-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }

    .news-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 40px;
    }

    /* 卡片放大 */
    .product-card__body {
        padding: 32px;
    }

    .product-card__title {
        font-size: 22px;
    }

    .news-card__body {
        padding: 36px;
    }

    .news-card__title {
        font-size: 24px;
    }

    /* 按钮 */
    .btn {
        padding: 22px 50px;
        font-size: 20px;
        border-radius: 40px;
    }

    /* 统计数字 */
    .stats-grid {
        padding: 90px 80px;
        gap: 50px;
    }

    .stat-num {
        font-size: 80px;
    }

    .stat-label {
        font-size: 22px;
    }

    /* 面包屑 */
    .breadcrumb {
        padding: 24px 0;
    }

    .breadcrumb__text {
        font-size: 18px;
    }
}

/* ============================================
   8K/5K 超大屏 (5120px+)
   ============================================ */
@media (min-width: 5120px) {
    /* 容器宽度 */
    .section__container,
    .page-main__container,
    .site-footer__container {
        max-width: var(--container-max, 2400px);
    }

    /* 基础字体放大 */
    html {
        font-size: 24px;
    }

    /* 导航栏 */
    .nav {
        height: 130px;
    }

    body {
        padding-top: 130px;
    }

    .nav__logo img {
        height: 100px;
    }

    .nav__menu > li > a {
        line-height: 130px;
        padding: 0 52px;
        font-size: 26px;
    }

    /* 首页模块 */
    .section {
        padding: 180px 0;
    }

    .section__title {
        font-size: 72px;
    }

    .section__subtitle {
        font-size: 24px;
    }

    /* 网格布局 */
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 50px;
    }

    .cases-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 50px;
    }

    .news-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 50px;
    }

    /* 统计数字 */
    .stats-grid {
        padding: 110px 100px;
        gap: 60px;
    }

    .stat-num {
        font-size: 96px;
    }

    .stat-label {
        font-size: 26px;
    }
}

/* ============================================
   平板横屏 (max-width: 1200px)
   ============================================ */
@media (max-width: 1200px) {
    /* 产品网格: 3列 */
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* 产品列表页: 3列→2列 */
    .products-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ============================================
   平板端 (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
    /* === 导航栏 === */
    body {
        padding-top: 60px;
    }

    .nav {
        height: 60px;
        padding: 0 16px;
    }

    .nav__logo img {
        height: 40px;
    }

    .nav__toggle {
        display: flex;
    }

    /* 移动端菜单 */
    .nav__menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: flex-start;
        background: white;
        padding: 0;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        z-index: 999;
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    .nav__menu.is-open {
        transform: translateX(0);
    }

    .nav__menu > li {
        width: 100%;
    }

    .nav__menu > li > a {
        color: var(--color-text);
        line-height: 56px;
        padding: 0 24px;
        padding-right: 60px;
        border-bottom: 1px solid var(--color-border-light);
        text-align: left;
    }

    .nav__menu > li > a::after {
        display: none;
    }

    .nav__menu > li:hover > a,
    .nav__menu > li.active > a {
        background: var(--color-bg-lighter);
        color: var(--color-primary);
    }

    /* 移动端子菜单 */
    .nav__menu > li > ul {
        position: static;
        width: 100%;
        padding: 0;
        background: var(--color-bg-light);
        box-shadow: none;
        border-top: none;
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .nav__menu > li > ul a {
        color: var(--color-text-light);
        padding: 14px 24px 14px 40px;
        text-align: left;
        border-bottom: 1px solid var(--color-border-light);
    }

    .nav__menu > li > ul a:hover {
        background: white;
        color: var(--color-primary);
    }

    /* 遮罩层 - 移动端/平板端 */
    .nav__backdrop {
        display: block;
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
        z-index: 998;
    }

    .nav__backdrop.is-visible {
        opacity: 1;
        visibility: visible;
    }

    /* 移动端隐藏产品子菜单 */
    .nav__menu > li[data-nav="product"] > ul {
        display: none !important;
    }

    /* === 页脚 === */
    .site-footer__top .site-footer__container {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .site-footer__nav {
        justify-content: center;
    }

    .site-footer__bottom .site-footer__container {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }

    .site-footer__contact,
    .site-footer__social,
    .site-footer__copyright {
        justify-content: center;
    }

    /* === 首页模块 === */
    .section {
        padding: 60px 0;
    }

    .section__header {
        margin-bottom: 36px;
    }

    /* 产品网格: 2列 */
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 案例网格: 2列 */
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 新闻网格: 2列 */
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 关于我们: 单列 */
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    /* ============================================
       平板/移动端产品导航 - 横向滚动 + 下拉菜单
       ============================================ */
    .products-nav {
        position: static;
        margin: 0 -16px 24px;
    }

    /* 横向滚动导航列表 */
    .products-nav__list {
        display: flex;
        flex-wrap: nowrap;
        justify-content: flex-start;
        gap: 8px;
        padding: 0 16px 8px 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .products-nav__list::-webkit-scrollbar {
        display: none;
    }

    /* Pills按钮样式 */
    .products-nav__link,
    .products-nav__toggle {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 10px 16px;
        font-size: 14px;
        font-weight: 500;
        white-space: nowrap;
        flex-shrink: 0;
        border-radius: 20px;
        border: 1.5px solid var(--color-border);
        background: white;
        color: var(--color-text);
    }

    .products-nav__link {
        background: var(--color-primary);
        border-color: var(--color-primary);
        color: white;
    }

    .products-nav__toggle[aria-expanded="true"] {
        background: rgba(232, 149, 19, 0.1);
        border-color: var(--color-primary);
        color: var(--color-primary);
    }

    .products-nav__arrow {
        width: 14px;
        height: 14px;
    }

    .products-nav__item {
        position: static;
        flex-shrink: 0;
    }

    /* 下拉菜单 - 使用fixed定位避免被裁剪 */
    .products-nav__sub {
        position: fixed;
        top: 180px;
        left: 16px;
        right: 16px;
        min-width: auto;
        max-height: 50vh;
        padding: 12px 0;
        background: white;
        border-radius: 12px;
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.18);
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        /* 关闭时：opacity先淡出，visibility延迟到淡出完成后再隐藏 */
        transition: opacity 0.2s ease, visibility 0s ease 0.2s;
        z-index: 1000;
        overflow-y: auto;
        transform: none;
    }

    .products-nav__item.is-open .products-nav__sub {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: none;
        /* 打开时：visibility立即可见，opacity渐入 */
        transition: opacity 0.2s ease, visibility 0s ease 0s;
    }

    .products-nav__sub-link {
        display: block;
        padding: 10px 16px;
        font-size: 14px;
        white-space: nowrap;
        text-align: left;
    }

    .products-nav__sub-link:first-child {
        font-weight: 600;
        color: var(--color-primary);
        border-bottom: 1px solid #f0f0f0;
        margin-bottom: 4px;
        padding-bottom: 10px;
    }

    .products-nav__sub-link:active {
        background: rgba(232, 149, 19, 0.08);
    }

    /* 案例网格: 2列 */
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 平板端只显示4个产品 */
    .products-grid .card--product:nth-child(n+5) {
        display: none;
    }

    /* 关于我们网格: 单列 */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-grid__name {
        font-size: 28px;
    }

    /* 统计数字: 2列 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 40px 30px;
    }

    .stat-num {
        font-size: 40px;
    }

    /* ============================================
       产品列表页 - 平板端
       ============================================ */
    .page-main__container {
        display: grid;
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .page-content {
        order: 0;
    }

    .products-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

/* ============================================
   移动端 (max-width: 767px)
   ============================================ */
@media (max-width: 767px) {
    /* === 页脚 === */
    .site-footer__top {
        padding: 24px 0;
    }

    .site-footer__nav {
        gap: 16px;
    }

    .site-footer__bottom {
        padding: 16px 0;
    }

    .site-footer__contact {
        flex-direction: column;
        gap: 12px;
    }

    /* === 首页模块 === */
    .section {
        padding: 40px 0;
    }

    .section__container {
        padding: 0 16px;
    }

    .section__header {
        margin-bottom: 28px;
    }

    .section__title {
        font-size: 24px;
    }

    .section__action {
        margin-top: 28px;
    }

    /* 轮播导航 */
    .hero__nav {
        bottom: 16px;
        gap: 12px;
    }

    .hero__prev,
    .hero__next {
        width: 36px;
        height: 36px;
    }

    .hero__prev svg,
    .hero__next svg {
        width: 16px;
        height: 16px;
    }

    .hero__dot {
        width: 10px;
        height: 10px;
    }

    /* 产品网格: 2列 */
    .products-grid {
        gap: 12px;
    }

    .product-card__body {
        padding: 12px;
    }

    .product-card__title {
        font-size: 14px;
    }

    /* 案例网格: 2列 */
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    /* 新闻网格: 1列 */
    .news-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* 产品导航移动端优化 */
    .products-nav {
        margin: 0 -12px 20px;
    }

    .products-nav__list {
        padding: 0 12px 8px 12px;
        gap: 6px;
    }

    .products-nav__link,
    .products-nav__toggle {
        padding: 8px 14px;
        font-size: 13px;
    }

    .products-nav__sub {
        left: 12px;
        right: 12px;
    }

    .news-card__body {
        padding: 16px;
    }

    /* 关于我们 - 旧类名 */
    .about-text__title {
        font-size: 22px;
    }

    .about-stats {
        gap: 24px;
    }

    .about-stat__number {
        font-size: 28px;
    }

    /* 关于我们网格 - 新类名 */
    .about-grid__name {
        font-size: 24px;
    }

    .about-grid__desc {
        font-size: 14px;
    }

    /* 统计数字 */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        padding: 32px 24px;
    }

    .stat-num {
        font-size: 36px;
    }

    .stat-label {
        font-size: 12px;
    }

    /* 新闻卡片 - 垂直布局 */
    .card--news .card__link {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
        gap: 16px;
    }

    .card--news .card__date {
        display: flex;
        align-items: center;
        gap: 8px;
        width: auto;
        padding-right: 0;
        padding-bottom: 12px;
        border-right: none;
        border-bottom: 2px solid var(--color-primary);
    }

    .card--news .card__date-day {
        font-size: 24px;
    }

    .card--news .card__date-month {
        margin-top: 0;
    }

    /* 按钮 */
    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    /* === 公共组件 === */
    .breadcrumb__container {
        padding: 0 16px;
    }

    .pagination {
        gap: 6px;
    }

    .pagination__item {
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        font-size: 13px;
    }

    .pagination__item--text {
        display: none;
    }

    /* ============================================
       产品列表页 - 移动端
       ============================================ */
    .page-main {
        padding: 24px 0 40px;
    }

    .page-main__container {
        padding: 0 16px;
        gap: 24px;
    }

    .products-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .product-card__btn {
        padding: 10px;
        font-size: 12px;
    }

    /* 返回顶部 */
    .back-to-top {
        width: 44px;
        height: 44px;
        right: 16px;
        bottom: 80px;
    }
}

/* ============================================
   小屏手机 (max-width: 479px)
   ============================================ */
@media (max-width: 479px) {
    /* === 首页模块 === */
    .section {
        padding: 30px 0;
    }

    .section__container {
        padding: 0 12px;
    }

    .section__title {
        font-size: 20px;
    }

    .section__subtitle {
        font-size: 12px;
    }

    /* 产品网格: 保持2列但更紧凑 */
    .products-grid {
        gap: 10px;
    }

    .product-card__body {
        padding: 10px;
    }

    .product-card__title {
        font-size: 13px;
    }

    /* 新闻卡片 */
    .news-card__body {
        padding: 14px;
    }

    .news-card__title {
        font-size: 14px;
    }

    /* 关于我们统计 - 旧类名 */
    .about-stats {
        flex-direction: column;
        gap: 16px;
    }

    /* 统计数字 - 新类名 */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
        padding: 24px 16px;
    }

    .stat-num {
        font-size: 32px;
    }

    .stat-label {
        font-size: 11px;
    }

    /* 产品导航 - 小屏优化 */
    .products-nav__link,
    .products-nav__toggle {
        padding: 8px 12px;
        font-size: 12px;
    }

    /* 案例网格: 1列 */
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    /* === 公共组件 === */
    .breadcrumb {
        padding: 12px 0;
    }

    .breadcrumb__container {
        padding: 0 12px;
    }

    .breadcrumb__text {
        font-size: 13px;
    }

    .pagination__item {
        min-width: 32px;
        height: 32px;
        font-size: 12px;
        border-radius: 6px;
    }

    /* 按钮 */
    .btn {
        padding: 10px 20px;
        font-size: 13px;
        width: 100%;
    }

    /* 返回顶部 */
    .back-to-top {
        width: 40px;
        height: 40px;
        right: 12px;
    }

    .back-to-top svg {
        width: 20px;
        height: 20px;
    }

    /* === 页脚 === */
    .site-footer__nav a {
        font-size: 13px;
    }

    .site-footer__contact span {
        font-size: 12px;
    }

    .site-footer__social a {
        width: 28px;
        height: 28px;
    }

    .site-footer__copyright {
        font-size: 11px;
        flex-direction: column;
        gap: 8px;
    }
}

/* ============================================
   ==========================================
   页面专用响应式样式 (从各页面CSS迁移)
   ==========================================
   ============================================ */

/* ============================================
   关于页 (About Page) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .about-intro__content {
        font-size: 15px;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 32px 24px;
        margin: 48px 0;
        padding: 36px 32px;
    }

    .about-stats__item:nth-child(2)::after {
        display: none;
    }

    .about-stats__num {
        font-size: 40px;
    }

    .about-stats__unit {
        font-size: 24px;
    }

    .about-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .honor-grid__title {
        padding: 12px;
        font-size: 13px;
    }
}

/* 关于页 - 移动端 */
@media (max-width: 767px) {
    .about-intro__content {
        font-size: 14px;
        line-height: 1.8;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px 16px;
        margin: 36px 0;
        padding: 28px 20px;
        border-radius: 12px;
    }

    .about-stats__item::after {
        display: none;
    }

    .about-stats__num {
        font-size: 32px;
    }

    .about-stats__unit {
        font-size: 20px;
    }

    .about-stats__label {
        font-size: 13px;
        margin-top: 8px;
    }

    .about-gallery {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .honor-grid__title {
        padding: 10px 12px;
        font-size: 12px;
    }
}

/* 关于页 - 小屏 */
@media (max-width: 479px) {
    .about-stats {
        padding: 24px 16px;
        gap: 20px 12px;
    }

    .about-stats__num {
        font-size: 28px;
    }

    .about-stats__unit {
        font-size: 18px;
    }

    .about-stats__label {
        font-size: 12px;
    }

    .honor-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   案例页 (Case Page) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .case-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .case-detail__container {
        flex-direction: column;
    }

    .case-detail__main {
        width: 100%;
    }

    .case-article {
        padding: 30px;
    }

    .case-article__title {
        font-size: 24px;
    }

    .case-gallery {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .case-recommend__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 案例页 - 移动端 */
@media (max-width: 767px) {
    .case-main {
        padding: 30px 0 40px;
    }

    .case-main__container {
        padding: 0 16px;
    }

    .case-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .case-card__body {
        padding: 14px;
    }

    .case-card__title {
        font-size: 14px;
        margin-bottom: 6px;
    }

    .case-card__desc {
        font-size: 12px;
    }

    .case-detail {
        padding: 24px 0 40px;
    }

    .case-detail__container {
        padding: 0 16px;
        gap: 24px;
    }

    .case-article {
        padding: 20px;
        border-radius: 8px;
    }

    .case-article__title {
        font-size: 20px;
    }

    .case-article__meta {
        flex-wrap: wrap;
        gap: 12px;
        font-size: 13px;
    }

    .case-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        margin-bottom: 30px;
    }

    .case-nav {
        flex-direction: column;
        gap: 12px;
    }

    .case-nav__item--next {
        text-align: left;
    }

    .case-recommend {
        padding: 20px;
        margin-top: 24px;
    }

    .case-recommend__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .case-main .pagination,
    .case-main .empty-state {
        margin-top: 30px;
    }
}

/* 案例页 - 小屏 */
@media (max-width: 479px) {
    .case-main__container {
        padding: 0 12px;
    }

    .case-list {
        grid-template-columns: 1fr;
    }

    .case-gallery {
        grid-template-columns: 1fr;
    }

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

/* ============================================
   联系页 (Contact Page) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .contact-main {
        padding: 30px 0 50px;
    }

    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        margin-bottom: 30px;
    }

    .contact-card {
        padding: 20px;
    }

    .contact-card__qrcode {
        width: 100px;
        height: 100px;
        margin-bottom: 12px;
    }

    .contact-card__name {
        font-size: 16px;
    }

    .contact-card__phone {
        font-size: 14px;
    }

    .contact-card__tip {
        display: inline-block;
    }

    .contact-address {
        padding: 24px;
    }

    .contact-map__container {
        height: 350px;
    }
}

/* 联系页 - 移动端 */
@media (max-width: 767px) {
    .contact-main {
        padding: 24px 0 40px;
    }

    .contact-main__container {
        padding: 0 16px;
    }

    .contact-cards {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 24px;
    }

    .contact-card {
        display: flex;
        align-items: center;
        gap: 16px;
        text-align: left;
        padding: 16px;
    }

    .contact-card__qrcode {
        width: 80px;
        height: 80px;
        margin: 0;
        flex-shrink: 0;
    }

    .contact-card__info {
        flex: 1;
        min-width: 0;
    }

    .contact-card__name {
        font-size: 15px;
        margin-bottom: 4px;
    }

    .contact-card__phone {
        font-size: 13px;
        margin-bottom: 2px;
    }

    .contact-card__email {
        font-size: 12px;
        margin-bottom: 8px;
    }

    .contact-card__tip {
        display: inline-block;
        font-size: 11px;
        padding: 6px 12px;
    }

    .contact-address {
        flex-direction: column;
        text-align: center;
        padding: 20px 16px;
        gap: 12px;
        margin-bottom: 20px;
    }

    .contact-address__icon {
        width: 44px;
        height: 44px;
    }

    .contact-address__icon svg {
        width: 20px;
        height: 20px;
    }

    .contact-address__title {
        font-size: 16px;
    }

    .contact-address__text {
        font-size: 13px;
    }

    .contact-map {
        border-radius: 8px;
    }

    .contact-map__container {
        height: 280px;
    }
}

/* 联系页 - 小屏 */
@media (max-width: 479px) {
    .contact-main {
        padding: 20px 0 30px;
    }

    .contact-main__container {
        padding: 0 12px;
    }

    .contact-card {
        padding: 14px;
        gap: 12px;
    }

    .contact-card__qrcode {
        width: 70px;
        height: 70px;
    }

    .contact-card__name {
        font-size: 14px;
    }

    .contact-address {
        padding: 16px 14px;
    }

    .contact-map__container {
        height: 240px;
    }
}

/* ============================================
   留言页 (Message Page) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .message-main {
        padding: 30px 0 50px;
    }

    .message-main__container {
        flex-direction: column;
    }

    .message-main__sidebar {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .message-sidebar__card {
        margin-bottom: 0;
    }

    .message-form {
        padding: 32px;
    }

    .message-form__title {
        font-size: 22px;
        margin-bottom: 24px;
    }
}

/* 留言页 - 移动端 */
@media (max-width: 767px) {
    .message-main {
        padding: 24px 0 40px;
    }

    .message-main__container {
        padding: 0 16px;
        gap: 24px;
    }

    .message-main__sidebar {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .message-form {
        padding: 24px 20px;
        border-radius: 8px;
    }

    .message-form__title {
        font-size: 20px;
        margin-bottom: 20px;
    }

    .form-group {
        margin-bottom: 16px;
    }

    .form-group__label {
        font-size: 13px;
        margin-bottom: 6px;
    }

    .form-group__input,
    .form-group__textarea {
        padding: 10px 14px;
        font-size: 14px;
        border-radius: 6px;
    }

    .form-group__textarea {
        min-height: 120px;
    }

    .form-captcha {
        flex-wrap: wrap;
    }

    .form-captcha__input {
        max-width: 100%;
        width: 100%;
        order: 1;
    }

    .form-captcha__image {
        order: 2;
        height: 40px;
    }

    .form-actions {
        flex-direction: column;
        gap: 12px;
        margin-top: 24px;
    }

    .form-actions__submit,
    .form-actions__reset {
        padding: 12px 20px;
        font-size: 15px;
    }

    .message-sidebar__card {
        padding: 20px;
    }

    .message-sidebar__title {
        font-size: 16px;
        margin-bottom: 16px;
        padding-bottom: 10px;
    }

    .message-sidebar__icon {
        width: 32px;
        height: 32px;
    }

    .message-sidebar__icon svg {
        width: 16px;
        height: 16px;
    }

    .message-sidebar__label {
        font-size: 12px;
    }

    .message-sidebar__value {
        font-size: 14px;
    }

    .message-sidebar__qrcode img {
        width: 140px;
        height: 140px;
    }
}

/* 留言页 - 小屏 */
@media (max-width: 479px) {
    .message-main {
        padding: 20px 0 30px;
    }

    .message-main__container {
        padding: 0 12px;
    }

    .message-form {
        padding: 20px 16px;
    }

    .message-form__title {
        font-size: 18px;
    }

    .message-sidebar__qrcode img {
        width: 120px;
        height: 120px;
    }
}

/* ============================================
   新闻详情页 (News Detail) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .news-detail__container {
        flex-direction: column;
    }

    .news-detail__main {
        width: 100%;
    }

    .news-article__header {
        padding: 24px;
    }

    .news-article__title {
        font-size: 22px;
    }

    .news-article__body {
        padding: 24px;
    }
}

/* 新闻详情 - 移动端 */
@media (max-width: 767px) {
    .news-detail {
        padding: 30px 0 40px;
    }

    .news-detail__container {
        padding: 0 16px;
    }

    .news-article__header {
        padding: 20px;
    }

    .news-article__title {
        font-size: 20px;
    }

    .news-article__meta {
        gap: 16px;
    }

    .news-article__body {
        padding: 20px;
        font-size: 15px;
    }

    .news-prev-next {
        flex-direction: column;
        gap: 12px;
    }

    .news-prev-next__item--next {
        flex-direction: row;
        text-align: left;
    }
}

/* 新闻详情 - 小屏 */
@media (max-width: 479px) {
    .news-detail {
        padding: 20px 0 30px;
    }

    .news-detail__container {
        padding: 0 12px;
    }

    .news-article__header {
        padding: 16px;
    }

    .news-article__title {
        font-size: 18px;
        margin-bottom: 12px;
    }

    .news-article__meta {
        gap: 12px;
        font-size: 13px;
    }

    .news-article__body {
        padding: 16px;
        font-size: 14px;
    }

    .news-prev-next {
        margin-top: 20px;
        gap: 10px;
    }

    .news-prev-next__item {
        padding: 12px 16px;
    }

    .news-prev-next__icon {
        width: 32px;
        height: 32px;
    }

    .news-prev-next__icon svg {
        width: 16px;
        height: 16px;
    }

    .news-prev-next__title {
        font-size: 13px;
    }
}

/* ============================================
   产品详情页 (Product Detail) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .product-overview {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .product-content {
        flex-direction: column;
    }

    .product-content .sidebar {
        width: 100%;
    }

    .product-info__title {
        font-size: 26px;
    }

    .product-info__actions {
        flex-wrap: wrap;
    }

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

/* 产品详情 - 移动端 */
@media (max-width: 767px) {
    .product-detail {
        padding: 20px 0 40px;
    }

    .product-detail__container {
        padding: 0 16px;
    }

    .product-overview {
        padding: 16px;
        gap: 20px;
    }

    .product-gallery__main img {
        height: auto;
    }

    .product-gallery__thumb {
        width: 70px;
        height: 40px;
    }

    .product-info__title {
        font-size: 18px;
        word-break: break-word;
    }

    .product-info__desc {
        padding: 12px;
        font-size: 14px;
    }

    .product-info__meta {
        margin-bottom: 20px;
    }

    .product-info__meta-item {
        font-size: 13px;
        gap: 8px;
        flex-wrap: wrap;
    }

    .product-info__actions {
        flex-direction: column;
    }

    .product-info__btn {
        width: 100%;
        padding: 12px 20px;
        font-size: 14px;
    }

    .product-content {
        gap: 20px;
        margin-bottom: 20px;
    }

    .inquiry-form__grid {
        grid-template-columns: 1fr;
    }

    .inquiry-form__actions {
        flex-direction: column;
    }

    .inquiry-form__submit,
    .inquiry-form__reset {
        width: 100%;
    }

    .prev-next {
        flex-direction: row;
        gap: 10px;
    }

    .prev-next__item {
        padding: 12px;
        gap: 8px;
    }

    .prev-next__icon {
        width: 28px;
        height: 28px;
    }

    .prev-next__icon svg {
        width: 14px;
        height: 14px;
    }

    .prev-next__label {
        font-size: 11px;
    }

    .prev-next__title {
        font-size: 12px;
    }

    .content-section__body {
        padding: 20px;
    }

    .news-section {
        margin-bottom: 20px;
    }

    .news-section__grid {
        grid-template-columns: 1fr;
        padding: 16px;
        gap: 12px;
    }

    .news-card {
        padding: 12px;
    }

    .news-card__title {
        font-size: 13px;
    }
}

/* 产品详情 - 小屏 */
@media (max-width: 479px) {
    .product-detail__container {
        padding: 0 12px;
    }

    .product-overview {
        padding: 12px;
        gap: 16px;
    }

    .product-gallery__thumb {
        width: 60px;
        height: 34px;
    }

    .product-info__title {
        font-size: 16px;
    }

    .product-info__desc {
        padding: 10px;
        font-size: 13px;
    }

    .product-info__meta-item {
        font-size: 12px;
        gap: 6px;
    }

    .product-info__btn {
        padding: 10px 16px;
        font-size: 13px;
    }

    .inquiry-form__captcha-input {
        max-width: none;
    }

    .inquiry-form__captcha-wrapper {
        flex-wrap: wrap;
    }

    .inquiry-form__body {
        padding: 16px;
    }

    .content-section__header,
    .inquiry-form__header {
        padding: 12px 16px;
    }

    .content-section__body {
        padding: 16px;
    }

    .news-section__header {
        padding: 12px 16px;
    }

    .news-section__grid {
        padding: 12px;
        gap: 10px;
    }

    .news-card {
        padding: 10px;
    }
}

/* ============================================
   新闻列表页 (News List) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .news-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .news-card__body {
        padding: 14px;
    }

    .news-card__title {
        font-size: 14px;
    }

    .news-card__excerpt {
        font-size: 12px;
    }
}

/* 新闻列表 - 移动端 */
@media (max-width: 767px) {
    .news-main {
        padding: 30px 0 40px;
    }

    .news-main__container {
        padding: 0 16px;
    }

    .news-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .news-card__image {
        aspect-ratio: 4/3;
    }

    .news-card__body {
        padding: 12px;
    }

    .news-card__title {
        font-size: 14px;
    }

    .news-card__excerpt {
        font-size: 12px;
        margin-top: 6px;
    }

    .news-main .pagination,
    .news-main .empty-state {
        margin-top: 30px;
    }
}

/* 新闻列表 - 小屏 */
@media (max-width: 479px) {
    .news-main {
        padding: 20px 0 30px;
    }

    .news-main__container {
        padding: 0 12px;
    }

    .news-list {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .news-card__body {
        padding: 12px;
    }

    .news-card__date {
        font-size: 12px;
        margin-bottom: 6px;
    }

    .news-card__title {
        font-size: 15px;
    }

    .news-card__excerpt {
        font-size: 13px;
        margin-top: 6px;
    }

    .news-main .pagination,
    .news-main .empty-state {
        margin-top: 24px;
    }
}

/* ============================================
   侧边栏 (Sidebar) - 平板端
   ============================================ */
@media (max-width: 1024px) {
    .sidebar {
        display: contents;
    }

    .sidebar__nav {
        order: -1;
        width: 100%;
    }

    .sidebar__widget {
        order: 10;
        width: 100%;
    }

    .sidebar__header {
        padding: 16px 20px;
    }

    .sidebar__title {
        font-size: 16px;
    }

    .sidebar__link {
        padding: 12px 16px;
        font-size: 14px;
    }

    .sidebar__submenu a {
        padding: 10px 16px 10px 32px;
        font-size: 13px;
    }

    .sidebar__submenu a::before {
        left: 16px;
    }

    .sidebar__products {
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
        padding: 12px;
    }

    .sidebar__product span {
        padding: 8px 6px;
        font-size: 12px;
    }
}

/* 侧边栏 - 移动端 */
@media (max-width: 767px) {
    .sidebar {
        width: 100%;
        order: 2;
    }

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

/* ============================================
   手机桌面模式专用 - JS检测添加类
   ============================================ */
.mobile-desktop-mode .contact-map__container {
    height: 600px;
}