/* ================================================================
   KORLSHOW Site56 — Inner Pages CSS v3 (Mobile-First Responsive)
   Page Banner · About · Products · News · Article · Product Detail
   Contact Page
   ================================================================ */

/* ==================== Page Banner (内页通用) ==================== */
.page-banner {
    position: relative;
    height: 280px;
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    contain: layout style paint;
}
.page-banner-bg { position: absolute; inset: 0; z-index: 1; }
.page-banner-bg img {
    width: 100%; height: 100%;
    object-fit: cover;
    object-position: center 35%;
}
.page-banner-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(135deg, rgba(17,24,39,0.78) 0%, rgba(34,197,94,0.12) 50%, rgba(17,24,39,0.70) 100%);
}
.page-banner-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: #fff;
    padding-top: calc(var(--nav-height, 64px) + 20px);
}
.page-banner-title {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 16px rgba(0,0,0,0.35);
    line-height: 1.25;
}
.page-banner-subtitle {
    font-size: 14px;
    opacity: 0.8;
    font-weight: 400;
    letter-spacing: 1px;
}

/* ==================== Company Intro (About页) ==================== */
.about-profile-section {
    padding: var(--section-py, 48px) 0;
    content-visibility: auto;
    contain-intrinsic-size: 720px;
}

/* ==================== Overseas Network / 海外网络布局 ==================== */
.network-section {
    padding: var(--section-py, 48px) 0 36px;
    background: linear-gradient(180deg, #f0f9f0 0%, #e8f5e8 50%, #d4edda 100%);
    content-visibility: auto;
    contain-intrinsic-size: 900px;
}
.network-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 6px 24px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.5);
    margin-bottom: 28px;
}
.network-card--primary {
    background: linear-gradient(180deg, #4a5568 0%, #374151 30%, #2d3748 70%, #1a202c 100%);
}
.network-card--secondary {
    background: linear-gradient(180deg, #556277 0%, #3d4a5c 25%, #2d3748 60%, #1f2937 100%);
}
.network-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 20px;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    flex-wrap: wrap;
}
.network-icon-wrap { flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.network-icon-wrap svg { width: 32px; height: 32px; }
.network-title-group { flex: 1; min-width: 0; }
.network-title-en {
    font-family: 'AlibabaSans', sans-serif;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: 0.5px;
}
.network-title-cn {
    font-size: 12.5px;
    opacity: 0.55;
    margin-top: 3px;
    font-weight: 500;
    letter-spacing: 2px;
}
.network-badge { flex-shrink: 0; opacity: 0.45; transition: opacity 0.3s ease-out; }
.network-badge svg { width: 28px; height: 28px; }
.network-card:hover .network-badge { opacity: 0.75; }

/* 世界地图区域 */
.network-map { padding: 12px 16px 24px; }
.world-map { width: 100%; background: transparent; border-radius: var(--radius-md); }
.world-svg { width: 100%; height: auto; display: block; }
.map-dot { animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot {
    0%, 100% { opacity: 1; r: 3; }
    50% { opacity: 0.55; r: 5; }
}

/* ==================== Cert Showcase / 资质证书展示 ==================== */
.cert-showcase-section {
    padding: var(--section-py, 48px) 0;
    content-visibility: auto;
    contain-intrinsic-size: 650px;
}
.cert-showcase-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.cert-showcase-item {
    text-align: center;
    transition: transform 0.35s ease-out, box-shadow 0.35s ease-out;
}
.cert-showcase-item:hover { transform: translateY(-5px); will-change: transform; }
.cert-frame {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.04);
    padding: 10px;
    transition: border-color 0.3s ease-out, box-shadow 0.3s ease-out;
    aspect-ratio: 280/396;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cert-frame img { max-width: 100%; max-height: 100%; object-fit: contain; }
.cert-showcase-item:hover .cert-frame {
    border-color: var(--color-primary-light);
    box-shadow: 0 6px 22px rgba(34,197,94,0.11);
}
.cert-name { margin-top: 12px; font-size: 13px; font-weight: 600; color: var(--color-text); }

/* 证书占位图 */
.cert-placeholder-svg {
    width: 160px;
    height: 220px;
    background: linear-gradient(135deg, #fafafa, #f0f0f0);
    border: 2px dashed #d0d0d0;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #bbb;
    font-size: 12px;
}

/* ==================== Utility Classes ==================== */
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.opacity-60 { opacity: 0.6; }
.fs-sm { font-size: 13px; }

/* ==================== Product Showcase / 产品展示页 ==================== */
.products-section {
    padding: var(--section-py, 48px) 0 64px;
    content-visibility: auto;
    contain-intrinsic-size: 1100px;
    max-width: 100%;
    overflow: hidden;
    box-sizing: border-box;
}
.section-header--center { text-align: center; margin-bottom: 36px; }

/* 产品筛选栏 */
.product-filter-bar {
    display: flex;
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    margin-bottom: 28px;
    padding: 12px 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    /* 隐藏滚动条 */
    -ms-overflow-style: none;
}
.product-filter-bar::-webkit-scrollbar { display: none; }
.filter-btn {
    display: inline-flex;
    align-items: center;
    height: 36px;
    padding: 0 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    background: #fff;
    color: var(--color-text-secondary);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: border-color 0.25s ease-out, background-color 0.25s ease-out, color 0.25s ease-out, box-shadow 0.25s ease-out;
    -webkit-tap-highlight-color: transparent;
    min-height: 40px; /* 触控目标 */
}
.filter-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(34,197,94,0.04);
}
.filter-btn--active,
.filter-btn--active:hover {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 2px 10px rgba(34,197,94,0.28);
}

/* 产品卡片网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 40px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.product-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: visible;
    background: #fff;
    border: 1px solid rgba(0,0,0,0.05);
    transition: transform 0.35s cubic-bezier(0.22,1,0.36,1), box-shadow 0.35s ease-out, border-color 0.35s ease-out;
    height: auto;
    max-width: 100%;
    box-sizing: border-box;
    min-width: 0;
}
.product-card:hover {
    transform: translateY(-6px);
    will-change: transform;
    box-shadow: 0 10px 30px rgba(0,0,0,0.09), 0 3px 10px rgba(0,0,0,0.03);
    border-color: rgba(34,197,94,0.22);
}

.product-card-inner { display: flex; flex-direction: column; height: auto; margin: 0; }
.product-card-link { display: block; text-decoration: none; outline: none; }
.product-card-link:focus-visible { outline: 2px solid var(--color-primary); outline-offset: -2px; border-radius: var(--radius-lg); }

.product-card-img-wrap {
    width: 300px;
    height: 330px;
    max-width: 100%;
    overflow: hidden;
    background: linear-gradient(180deg, #f7faf7 0%, #f0f5f0 50%, #e8f3ea 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    box-sizing: border-box;
}
.product-card-img-wrap img {
    width: 100% !important;
    max-width: 100% !important;
    height: 100% !important;
    object-fit: cover;
    transition: transform 0.45s cubic-bezier(0.22,1,0.36,1);
    display: block;
}
.product-card:hover .product-card-img-wrap img { transform: scale(1.05); }

.product-card-info {
    padding: 14px 14px 18px;
    text-align: center;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.product-card-name {
    font-family: var(--font-heading);
    font-size: 13.5px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}
.product-card-desc { font-size: 12px; color: var(--color-text-tertiary); line-height: 1.45; }

/* 分页器 */
.pagination { display: flex; justify-content: center; padding-top: 8px; }
.pagination-list {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    list-style: none;
    padding: 0; margin: 0;
}
.pagination-item { display: flex; }
.pagination-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--color-text);
    font-size: 13.5px;
    font-weight: 500;
    font-family: inherit;
    text-decoration: none;
    transition: all 0.25s ease-out;
    line-height: 1;
    min-height: 40px; /* 触控 */
}
.pagination-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(34,197,94,0.04);
}
.pagination-link--active,
.pagination-link--active:hover {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: #fff;
    font-weight: 700;
    pointer-events: none;
}
.pagination-item--next .pagination-link { gap: 5px; min-width: auto; font-weight: 600; }
.pagination-link svg { flex-shrink: 0; }
.pagination-link:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ==================== News List / 公司新闻页 ==================== */
.news-section {
    padding: 32px 0 56px;
    content-visibility: auto;
    contain-intrinsic-size: 1200px;
}
.news-list { display: flex; flex-direction: column; gap: 0; }
.news-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    align-items: start;
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border-light);
}
.news-card:first-child { padding-top: 8px; }

.news-thumb-wrap { margin: 0; order: -1; }
.news-thumb-link { display: block; text-decoration: none; outline: none; }
.news-thumb-placeholder {
    width: 100%;
    aspect-ratio: 16/9;
    max-width: 400px;
    background: #f5f7f5;
    border-radius: var(--radius-md);
    border: 1px dashed var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.25s ease-out, background-color 0.25s ease-out;
    overflow: hidden;
}
.news-thumb-placeholder img.news-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-card:hover .news-thumb-placeholder {
    border-color: var(--color-primary-light);
    background: rgba(34,197,94,0.03);
}
.news-thumb-link:focus-visible .news-thumb-placeholder { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.news-body { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.news-title { font-size: 15.5px; font-weight: 700; line-height: 1.5; margin: 0; }
.news-title a {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.2s ease-out;
    display: inline-block;
}
.news-title a:hover,
.news-title a:focus-visible { color: var(--color-primary); }
.news-title a:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 2px; }
.news-date { font-size: 12.5px; color: var(--color-text-tertiary); font-family: 'AlibabaSans', monospace; }
.news-excerpt {
    font-size: 13.5px;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin: 2px 0 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 新闻分页器 */
.pagination--news {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding-top: 32px;
    flex-wrap: wrap;
}
.pagination-info { font-size: 13px; color: var(--color-text-tertiary); white-space: nowrap; }
.pagination-next-btn {
    display: inline-flex;
    align-items: center;
    height: 38px;
    padding: 0 18px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: #fff;
    color: var(--color-text-secondary);
    font-size: 13.5px;
    font-weight: 500;
    font-family: inherit;
    text-decoration: none;
    transition: all 0.25s ease-out;
    min-height: 40px;
}
.pagination-next-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(34,197,94,0.04);
}
.pagination-next-btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ==================== Article Detail / 新闻详情页 ==================== */
.article-section {
    padding: 32px 0 56px;
    content-visibility: auto;
    contain-intrinsic-size: 1400px;
}
.article-container { max-width: 100%; margin: 0 auto; padding-left: 8px; padding-right: 8px; }

.article-header { text-align: center; margin-bottom: 28px; padding-bottom: 22px; border-bottom: 1px solid var(--color-border-light); }
.article-title {
    font-family: var(--font-heading);
    font-size: 21px;
    font-weight: 800;
    color: var(--color-text);
    line-height: 1.4;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
}
.article-meta { display: block; font-size: 13px; color: var(--color-text-tertiary); font-family: 'AlibabaSans', monospace; }

.article-body { font-size: 14.5px; line-height: 1.9; color: var(--color-text); }
.article-body p { margin-bottom: 16px; text-align: justify; text-indent: 1.8em; }

.article-figure { margin: 24px 0; border-radius: var(--radius-lg); overflow: hidden; }
.article-figure img { width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
.article-caption { text-align: center; font-size: 12.5px; color: var(--color-text-tertiary); margin-top: 8px; font-style: italic; }

.article-subheading {
    font-family: var(--font-heading);
    font-size: 17px;
    font-weight: 700;
    color: var(--color-text);
    margin: 28px 0 14px;
    padding-left: 12px;
    border-left: 3px solid var(--color-primary);
    line-height: 1.4;
}

.article-list { list-style-position: outside; padding-left: 22px; margin-bottom: 16px; }
.article-list li { font-size: 14.5px; line-height: 1.9; color: var(--color-text); margin-bottom: 6px; }
.article-list--unordered { list-style-type: disc; }

.article-footer { margin-top: 36px; padding-top: 24px; border-top: 1px solid var(--color-border-light); text-align: center; }
.btn-back-list {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 24px;
    background: #fff;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: 13.5px;
    font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    transition: all 0.25s ease-out;
    min-height: 44px;
}
.btn-back-list:hover,
.btn-back-list:focus-visible {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(34,197,94,0.04);
}
.btn-back-list svg { transition: transform 0.2s ease-out; }
.btn-back-list:hover svg { transform: translateX(-3px); }
.btn-back-list:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* ==================== Breadcrumb / 面包屑导航 ==================== */
.breadcrumb-nav {
    padding: 12px 0;
    background: #f8faf8;
    border-bottom: 1px solid rgba(0,0,0,0.04);
}
.breadcrumb-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 5px;
    list-style: none;
    padding: 0;
    margin: 0;
    font-size: 12.5px;
    color: var(--color-text-tertiary);
}
.breadcrumb-list li { display: inline-flex; align-items: center; gap: 5px; }
.breadcrumb-list li:not(:last-child)::after {
    content: '/';
    color: var(--color-border-dark);
    font-size: 10.5px;
}
.breadcrumb-list a { color: var(--color-text-secondary); text-decoration: none; transition: color 0.2s ease-out; }
.breadcrumb-list a:hover,
.breadcrumb-list a:focus-visible { color: var(--color-primary); }

/* ==================== Product Detail / 产品详情页 ==================== */
.product-detail-section {
    padding: 36px 0 56px;
    content-visibility: auto;
    contain-intrinsic-size: 1200px;
}
.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 44px;
}

/* 左侧：图片画廊（移动端图在上） */
.product-gallery { display: flex; flex-direction: column-reverse; gap: 12px; }
.gallery-thumbs-wrapper {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
}
.gallery-scroll-btn {
    width: 36px;
    height: 36px;
    border: 1px solid rgba(0,0,0,0.08);
    border-radius: 50%;
    background: rgba(255,255,255,0.8);
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}
.gallery-scroll-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}
.gallery-scroll-btn:active { transform: scale(0.95); }
.gallery-thumbs {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    gap: 10px;
    padding: 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.gallery-thumbs::-webkit-scrollbar { display: none; }
.gallery-thumb {
    width: 60px;
    height: 78px;
    flex-shrink: 0;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    background: #f5f7f5;
    padding: 3px;
    transition: border-color 0.25s ease-out, box-shadow 0.25s ease-out;
    -webkit-tap-highlight-color: transparent;
}
.gallery-thumb:hover { border-color: rgba(34,197,94,0.35); }
.gallery-thumb--active,
.gallery-thumb--active:hover {
    border-color: var(--color-primary);
    box-shadow: 0 2px 10px rgba(34,197,94,0.12);
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; border-radius: 3px; }
.gallery-main-wrap {
    flex: 1;
    background: linear-gradient(180deg, #f9fbf9 0%, #f0f5f0 50%, #eaf2ea 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    min-height: 300px;
    max-height: 450px;
}
.gallery-main img {
    max-width: 100%;
    max-height: 360px;
    object-fit: contain;
    transition: transform 0.35s cubic-bezier(0.22,1,0.36,1), opacity 0.25s ease-out;
}

/* 右侧：产品信息 */
.product-info { display: flex; flex-direction: column; gap: 18px; max-height: 450px; overflow-y: auto; }
.product-info-title {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    color: var(--color-text);
    letter-spacing: -0.01em;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary-light);
}

.product-specs { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; margin: 2px 0; }
.spec-row { grid-column: 1 / -1; display: contents; }
.spec-label { font-weight: 600; font-size: 13px; color: var(--color-text-secondary); white-space: nowrap; min-width: 80px; }
.spec-value { font-size: 13px; color: var(--color-text); line-height: 1.6; }

.product-related { margin-top: 4px; padding-top: 14px; border-top: 1px solid var(--color-border-light); }
.related-heading { font-size: 13px; font-weight: 700; color: var(--color-text-secondary); margin-bottom: 8px; }
.related-product-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    transition: gap 0.2s ease-out;
}
.related-product-link:hover,
.related-product-link:focus-visible { gap: 10px; }
.related-product-link svg { transition: transform 0.2s ease-out; flex-shrink: 0; }
.related-product-link:hover svg { transform: translateX(3px); }

.product-share {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-top: auto;
    padding-top: 14px;
}
.share-label { font-size: 13px; font-weight: 600; color: var(--color-text-secondary); white-space: nowrap; }
.share-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    height: 36px;
    padding: 0 14px;
    border-radius: var(--radius-full);
    font-size: 12.5px;
    font-weight: 600;
    font-family: inherit;
    text-decoration: none;
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out, opacity 0.2s ease-out;
    min-height: 40px;
}
.share-btn--fb { background: #1877F2; color: #fff; }
.share-btn--tw { background: #000; color: #fff; }
.share-btn:hover { transform: translateY(-2px); will-change: transform; box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.share-btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

/* 产品详情图文区 */
.product-description { margin-top: 24px; padding-top: 32px; border-top: 2px solid var(--color-border-light); }
.detail-heading {
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    color: var(--color-text);
    text-align: center;
    margin-bottom: 28px;
    letter-spacing: -0.01em;
}
.detail-content { font-size: 14px; line-height: 1.85; color: var(--color-text); max-width: 100%; margin: 0 auto; }
.detail-content p { margin-bottom: 16px; }
.detail-figure {
    margin: 22px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    background: #f9faf9;
    padding: 12px;
}
.detail-figure img { width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
.detail-caption { text-align: center; font-size: 12.5px; color: var(--color-text-tertiary); margin-top: 8px; font-style: italic; }

.feature-check-list { list-style: none; padding: 0; margin: 20px 0; display: flex; flex-direction: column; gap: 12px; }
.feature-check-list li {
    display: flex; align-items: center; gap: 10px;
    font-size: 14px; font-weight: 500; color: var(--color-text);
}
.feature-check-list li svg { flex-shrink: 0; margin-top: 2px; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ==================== Contact Page / 联系我们页 ==================== */
.contact-section {
    padding: 36px 0 48px;
    content-visibility: auto;
    contain-intrinsic-size: 1400px;
}
.contact-page-title {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 800;
    color: var(--color-text);
    text-align: center;
    letter-spacing: 3px;
    margin-bottom: 32px;
}

.contact-team { display: flex; justify-content: center; gap: 40px; margin-bottom: 32px; flex-wrap: wrap; }
.team-member { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.member-avatar {
    margin: 0; border-radius: 50%; overflow: hidden;
    width: 88px; height: 88px;
    background: #f5f7f5;
    border: 2px dashed var(--color-border);
    display: flex; align-items: center; justify-content: center;
}
.member-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.member-name { font-size: 13.5px; color: var(--color-text-secondary); font-weight: 500; }

.contact-info-block {
    max-width: 100%;
    margin: 0 auto 28px;
    padding: 22px 20px;
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0,0,0,0.04);
}
.company-name-cn { font-family: var(--font-heading); font-size: 16.5px; font-weight: 700; color: var(--color-text); margin-bottom: 14px; }
.contact-detail-list { display: grid; gap: 8px 14px; }
.detail-item { display: contents; }
.detail-item dt { font-size: 13px; font-weight: 600; color: var(--color-text-secondary); white-space: nowrap; }
.detail-item dd { font-size: 13px; color: var(--color-text); line-height: 1.6; }
.detail-item a { color: var(--color-primary); text-decoration: none; transition: opacity 0.2s ease; }
.detail-item a:hover { opacity: 0.75; }

/* 绿色波浪装饰联系卡片 */
.contact-card-wave {
    position: relative;
    margin-bottom: 28px;
    border-radius: var(--radius-lg);
    background: #fafcfa;
    box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}
.wave-decoration {
    position: absolute; top: 0; left: 50%;
    transform: translateX(-50%);
    width: 100vw;
    height: 6px;
    background:
        linear-gradient(135deg, transparent 35%, #22c55e 35%, #22c55e 37%, transparent 37%),
        linear-gradient(225deg, transparent 45%, #22c55e 45%, #22c55e 47%, transparent 47%),
        linear-gradient(135deg, transparent 25%, rgba(34,197,94,0.3) 25%, rgba(34,197,94,0.3) 100%);
    z-index: 1;
}
.wave-decoration::after {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 100%;
    background:
        linear-gradient(160deg, transparent 42%, #facc15 42%, #facc15 46%, transparent 46%),
        linear-gradient(200deg, transparent 52%, #facc15 52%, #facc15 56%, transparent 56%);
    opacity: 0.82;
}
.contact-card-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 24px 20px 28px;
}
.card-col--address .card-label { font-size: 13.5px; font-weight: 700; color: var(--color-text); display: block; margin-bottom: 6px; }
.card-text-en { font-family: 'AlibabaSans', sans-serif; font-size: 12px; line-height: 1.65; color: var(--color-text-secondary); }
.card-col--hotline { border-top: 1px solid var(--color-border-light); padding-top: 18px; margin-top: 0; }
.hotline-row { font-size: 12.5px; color: var(--color-text-secondary); margin: 0 0 8px; line-height: 1.5; }
.hotline-row:last-child { margin-bottom: 0; }
.hotline-row strong { font-weight: 600; color: var(--color-text); }
.hotline-number {
    font-size: 17px; font-weight: 800;
    color: var(--color-primary);
    text-decoration: none; letter-spacing: 0.5px;
}
.hotline-number:hover,
.hotline-number:focus-visible { opacity: 0.8; }
.hotline-number:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 2px; }

.qr-group { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.qr-item { text-align: center; margin: 0; }
.qr-item img {
    width: 80px; height: 80px; object-fit: cover;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm); padding: 3px; background: #fff;
}
.qr-label { display: block; margin-top: 5px; font-size: 10.5px; color: var(--color-text-tertiary); }

.contact-city-image { margin: 0 0 0 calc(50% - 50vw); border-radius: 0; overflow: hidden; border: none; background: #f5f7f5; width: 100vw; }
.contact-city-image img { width: 100%; height: auto; display: block; min-height: 200px; object-fit: cover; }
.city-caption { text-align: center; font-size: 12.5px; color: var(--color-text-tertiary); padding: 8px; margin: 0; }


/*
 * ============================================
 * RESPONSIVE BREAKPOINTS (min-width progressive)
 * ============================================
 */

/* —— ≥400px 小屏增强 —— */
@media (min-width: 400px) {
    .page-banner-title { font-size: 31px; }
    .contact-page-title { font-size: 26px; }
    .product-info-title { font-size: 24px; }
    .article-title { font-size: 23px; }
    .cert-showcase-grid { gap: 20px; }
    .products-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

/* —— ≥768px 平板竖屏 —— */
@media (min-width: 768px) {
    :root { --section-py: 64px; }

    .page-banner { height: 340px; min-height: 280px; }
    .page-banner-title { font-size: 36px; }
    .page-banner-subtitle { font-size: 15px; }

    .about-profile-section,.cert-showcase-section { padding: 72px 0; }
    .network-section { padding: 72px 0 40px; }
    .network-header { flex-wrap: nowrap; gap: 18px; padding: 22px 26px; }
    .network-icon-wrap svg { width: 38px; height: 38px; }
    .network-title-en { font-size: 20px; }
    .network-badge svg { width: 34px; height: 34px; }
    .network-map { padding: 14px 20px 28px; }

    .cert-showcase-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .company-intro-grid { gap: 42px; }
    .company-intro-media img, .company-intro-media video { height: auto; }

    /* Gallery：桌面端纵向布局 */
    .gallery-thumbs-wrapper {
        flex-direction: column;
        height: 480px;
    }
    .gallery-thumbs {
        flex-direction: column;
        overflow-y: auto;
        height: 430px;
    }

    /* Product Detail：左右分栏 */
    .product-detail-grid { grid-template-columns: 1fr 1fr; gap: 36px; margin-bottom: 56px; }
    .product-gallery { flex-direction: row; gap: 14px; }
    .gallery-thumb { width: 70px; height: 92px; flex-shrink: 0; }
    .gallery-main-wrap { min-height: 380px; padding: 26px; }
    .gallery-main img { max-height: 450px; }
    .product-detail-section { padding: 40px 0 64px; }
    .product-info-title { font-size: 26px; padding-bottom: 14px; }

    /* News：左图右文 */
    .news-card { grid-template-columns: 180px 1fr; gap: 22px; padding: 28px 0; }
    .news-thumb-wrap { order: 0; }
    .news-thumb-placeholder { aspect-ratio: 4/3; max-width: none; }
    .news-title { font-size: 16px; }
    .news-excerpt { -webkit-line-clamp: 3; }
    .news-section { padding: 36px 0 60px; }

    /* Article */
    .article-section { padding: 36px 0 64px; }
    .article-container { max-width: 860px; padding-left: 0; padding-right: 0; }
    .article-title { font-size: 24px; }
    .article-header { margin-bottom: 32px; padding-bottom: 24px; }
    .article-subheading { font-size: 18px; margin: 32px 0 16px; }
    .article-body { font-size: 15px; }
    .article-body p { text-indent: 2em; margin-bottom: 18px; }
    .article-figure { margin: 28px 0; }
    .article-list li { font-size: 15px; }

    .breadcrumb-nav { padding: 14px 0; }

    /* Contact */
    .contact-section { padding: 40px 0 56px; }
    .contact-page-title { font-size: 27px; letter-spacing: 3px; margin-bottom: 36px; }
    .contact-team { gap: 56px; margin-bottom: 36px; flex-wrap: nowrap; }
    .member-avatar { width: 100px; height: 100px; }
    .member-name { font-size: 14px; }
    .contact-info-block { padding: 24px 28px; max-width: 620px; }
    .company-name-cn { font-size: 17.5px; }
    .contact-card-inner {
        grid-template-columns: 1fr auto auto;
        gap: 32px;
        padding: 30px 32px 36px;
    }
    .card-col--hotline { border-left: 1px solid var(--color-border-light); border-top: none; padding-left: 22px; padding-top: 0; }
    .hotline-number { font-size: 19px; }

    /* 产品筛选栏居中 */
    .product-filter-bar { justify-content: center; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
    .filter-btn { height: 38px; padding: 0 18px; font-size: 14px; }
    .products-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 44px; }
    .products-section { padding: 64px 0 80px; }
    .section-header--center { margin-bottom: 42px; }

    .detail-heading { font-size: 25px; margin-bottom: 32px; }
    .detail-content { max-width: 860px; }
    .product-share { flex-direction: row; align-items: center; }
    .share-btn { font-size: 13px; height: 36px; padding: 0 16px; }
}

/* —— ≥1024px 平板横屏/小桌面 —— */
@media (min-width: 1024px) {
    :root { --section-py: 80px; }

    .page-banner { height: 400px; min-height: 340px; }
    .page-banner-title { font-size: 42px; }

    .about-profile-section,.cert-showcase-section { padding: 88px 0; }
    .network-section { padding: 88px 0 48px; }
    .network-header { padding: 26px 32px; }
    .network-title-en { font-size: 22px; }
    .network-map { padding: 16px 28px 36px; }

    .cert-showcase-grid { grid-template-columns: repeat(5, 1fr); gap: 28px; }

    .product-filter-bar { gap: 10px; }
    .filter-btn { height: 38px; padding: 0 20px; font-size: 14px; }
    .products-grid { grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 48px; }
    .products-section { padding: 80px 0 96px; }
    .product-card-img-wrap { padding: 18px; }
    .product-card-name { font-size: 15px; }
    .product-card-desc { font-size: 13px; }
    .product-card-info { padding: 18px 18px 22px; }

    .news-card { grid-template-columns: 240px 1fr; gap: 28px; padding: 32px 0; }
    .news-title { font-size: 17px; }
    .news-section { padding: 40px 0 76px; }

    .article-title { font-size: 27px; }
    .article-subheading { font-size: 19px; }
    .article-body { font-size: 15.5px; line-height: 2; }

    .product-info-title { font-size: 29px; }
    .product-specs { gap: 14px 20px; }
    .spec-label { font-size: 14px; min-width: 90px; }
    .spec-value { font-size: 14px; }
    .gallery-main-wrap { min-height: 480px; padding: 32px; }
    .gallery-main img { max-height: 520px; }
    .detail-heading { font-size: 27px; }

    .contact-page-title { font-size: 30px; letter-spacing: 4px; }
    .contact-info-block { padding: 28px 32px; }
    .company-name-cn { font-size: 18px; }
    .contact-card-inner { gap: 40px; padding: 36px 40px 40px; }
    .qr-group { justify-content: flex-start; gap: 16px; }
    .qr-item img { width: 90px; height: 90px; }
    .contact-city-image img { min-height: 280px; }
    .city-caption { font-size: 13px; padding: 10px; }

    .pagination-link { min-width: 40px; height: 40px; font-size: 14px; }
    .pagination--news { gap: 16px; padding-top: 40px; }
    .pagination-info { font-size: 14px; }
}

/* —— ≥1440px 大屏增强 —— */
@media (min-width: 1440px) {
    .products-grid { grid-template-columns: repeat(4, 1fr); }
}


/* ==================== Reduced Motion ==================== */
@media (prefers-reduced-motion: reduce) {
    .map-dot { animation: none !important; }
    .cert-showcase-item,
    .network-badge,
    .product-card,
    .product-card-img-wrap img,
    .filter-btn,
    .pagination-link,
    .share-btn,
    .gallery-main img,
    .news-thumb-placeholder,
    .btn-back-list,
    .member-avatar {
        transition-duration: 0.01ms !important;
        will-change: auto !important;
    }
}

/* ==================== Print ==================== */
@media print {
    .page-banner { height: auto; min-height: auto; padding: 20px 0; contain: unset; }
    .page-banner-overlay { display: none; }
    .page-banner-title, .page-banner-subtitle { color: #111; text-shadow: none; }
    .network-section { background: none !important; }
    .network-card { break-inside: avoid; }
    [data-animate] { opacity: 1; transform: none; }
    * { will-change: auto !important; }

    .breadcrumb-nav { background: none; border-bottom: none; }
    .product-detail-grid { grid-template-columns: 1fr; }
    .gallery-thumbs { display: none !important; }
    .product-share { display: none !important; }
    .product-card {
        break-inside: avoid; page-break-inside: avoid;
        border: 1px solid #ccc !important;
        transform: none !important; box-shadow: none !important;
    }
    .news-card { break-inside: avoid; page-break-inside: avoid; padding: 12px 0; border-bottom: 1px solid #ddd !important; }
    .news-thumb-placeholder { display: none !important; }

    .article-section { contain: unset; padding: 20px 0; }
    .article-header { border-bottom: 1px solid #333 !important; }
    .article-title { color: #111; font-size: 22px; }
    .article-subheading { border-left: 2px solid #333; page-break-after: avoid; }
    .article-figure img { max-width: 100%; height: auto; border: 1px solid #ccc; }
    .article-footer { display: none !important; }

    .contact-section { contain: unset; padding: 20px 0; }
    .contact-card-wave { box-shadow: none; border: 1px solid #ccc; }
    .wave-decoration { display: none !important; }
    .member-avatar img { border-radius: 50%; border: 1px solid #999; }
    .contact-city-image { border: 1px solid #ccc; }
}