/* ========================================
   SHARED PAGE STYLES
   ======================================== */

/* Page Hero */
.page-hero {
    padding: 160px 0 80px;
    position: relative;
    background:
        radial-gradient(ellipse 60% 50% at 50% 40%, rgba(79, 172, 254, 0.06) 0%, transparent 60%);
}

.page-hero-content {
    text-align: center;
}

.page-hero h1 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 900;
    margin: 16px 0;
    letter-spacing: -0.5px;
}

.page-hero p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 二级 Tabs（品牌列表 / 自研产品列表） */
.sub-tabs-wrap {
    margin-bottom: 24px;
    overflow-x: auto;
    padding-bottom: 4px;
}
.sub-tabs {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}
.sub-tab {
    padding: 8px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
    font-family: inherit;
}
.sub-tab:hover {
    color: var(--text-primary);
    border-color: rgba(79,172,254,0.3);
}
.sub-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-color: transparent;
    color: #fff;
}

/* 产品详情卡片（图片 + 介绍） */
.products-list-wrap {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    margin-top: 20px;
}
.product-item {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: all 0.3s;
}
.product-item:hover {
    transform: translateY(-3px);
    border-color: rgba(79,172,254,0.35);
    box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}
.product-item-media {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, rgba(79,172,254,0.08), rgba(168,85,247,0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.product-item-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.product-item-placeholder {
    color: var(--text-muted);
    font-size: 48px;
    opacity: 0.4;
}
.product-item-info {
    padding: 16px 18px;
}
.product-item-info h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
    line-height: 1.4;
}
.product-item-info p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    min-height: 36px;
}

/* Tabs Navigation */
.tabs-nav {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
    padding: 6px;
    background: var(--bg-card);
    border-radius: 50px;
    border: 1px solid var(--border);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    padding: 12px 28px;
    background: transparent;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    box-shadow: 0 4px 16px rgba(79, 172, 254, 0.3);
}

/* Tab Panel */
.tab-panel {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.panel-icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    border-radius: 16px;
    background: rgba(79, 172, 254, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: var(--primary);
}

.panel-icon.purple {
    background: rgba(168, 85, 247, 0.1);
    color: var(--accent-purple);
}

.panel-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
}

.panel-header h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.panel-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(79, 172, 254, 0.15);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.feature-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-card h4 i {
    color: var(--primary);
    font-size: 16px;
}

.feature-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Brands Detail */
.brands-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.brand-detail-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: all 0.4s ease;
}

.brand-detail-card:hover {
    transform: translateY(-4px);
    border-color: rgba(79, 172, 254, 0.15);
}

.brand-detail-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.brand-role {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(79, 172, 254, 0.1);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.brand-detail-card ul {
    list-style: none;
}

.brand-detail-card ul li {
    position: relative;
    padding: 6px 0 6px 20px;
    font-size: 13px;
    color: var(--text-secondary);
}

.brand-detail-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.5;
}

/* ========================================
   SERVICES PAGE
   ======================================== */
.service-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

/* ========================================
   联系我们 — 二维码卡片（点击弹出大图）
   ======================================== */
.contact-card-qr {
    cursor: pointer;
    transition: all 0.2s ease;
}
.contact-card-qr:hover {
    transform: translateY(-3px);
    border-color: rgba(79, 172, 254, 0.4);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}
.contact-card-qr p {
    color: var(--primary);
    font-weight: 500;
}
.contact-card-qr p i {
    margin-right: 6px;
}

/* 二维码弹窗 */
.qr-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: qrFadeIn 0.25s ease;
}
.qr-modal.active { display: flex; }
@keyframes qrFadeIn { from { opacity: 0; } to { opacity: 1; } }
.qr-modal-box {
    position: relative;
    background: #fff;
    border-radius: 20px;
    padding: 32px 28px 24px;
    max-width: 92vw;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    text-align: center;
    animation: qrPopIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes qrPopIn {
    from { transform: scale(0.85); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}
.qr-modal-title {
    font-size: 16px;
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 16px;
}
.qr-modal-box img {
    width: 280px;
    height: 280px;
    max-width: 70vw;
    max-height: 70vw;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
}
.qr-modal-hint {
    margin-top: 16px;
    font-size: 13px;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.qr-modal-hint i {
    color: #07c160;
    font-size: 18px;
}
.qr-modal-close {
    position: absolute;
    top: 10px;
    right: 14px;
    width: 32px;
    height: 32px;
    border: none;
    background: #f1f5f9;
    color: #475569;
    border-radius: 50%;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s;
}
.qr-modal-close:hover {
    background: #e2e8f0;
    color: #0f172a;
}

/* ========================================
   SERVICES 重新设计 — 左右两栏
   ======================================== */
.svc-panel {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0,0,0,0.2);
    animation: svcFadeIn 0.4s ease;
}
@keyframes svcFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.svc-panel-side {
    background: linear-gradient(160deg, rgba(79, 172, 254, 0.15) 0%, rgba(168, 85, 247, 0.08) 100%);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 14px;
    border-right: 1px solid var(--border);
    position: relative;
}
.svc-panel-side::after {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.svc-panel-icon {
    width: 90px;
    height: 90px;
    border-radius: 24px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: #fff;
    box-shadow: 0 10px 30px rgba(79, 172, 254, 0.35);
}
.svc-panel-num {
    font-size: 56px;
    font-weight: 900;
    line-height: 1;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 2px;
}
.svc-panel-label {
    font-size: 11px;
    letter-spacing: 4px;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 500;
}
.svc-panel-body {
    padding: 40px 36px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.svc-panel-body h3 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-primary);
    margin: 0;
}
.svc-panel-desc {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: 0;
}
.svc-panel-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
    margin: 4px 0;
}
.svc-panel-subtitle {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.svc-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 10px;
    margin-top: 4px;
}
.svc-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(79, 172, 254, 0.06);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.2s ease;
}
.svc-feature:hover {
    background: rgba(79, 172, 254, 0.12);
    border-color: rgba(79, 172, 254, 0.25);
    transform: translateY(-1px);
}
.svc-feature-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
@media (max-width: 768px) {
    .svc-panel { grid-template-columns: 1fr; }
    .svc-panel-side { padding: 28px 20px; }
    .svc-panel-body { padding: 28px 24px; }
    .svc-panel-icon { width: 70px; height: 70px; font-size: 32px; }
    .svc-panel-num { font-size: 42px; }
}

.service-detail-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.service-detail-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.4s;
}

.service-detail-card:hover::before {
    opacity: 1;
}

.service-detail-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.25);
}

.service-detail-card .service-num {
    font-size: 48px;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.15), rgba(0, 242, 254, 0.08));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.service-detail-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-detail-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-detail-card ul {
    list-style: none;
}

.service-detail-card ul li {
    padding: 5px 0;
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-detail-card ul li i {
    color: var(--accent-green);
    font-size: 10px;
}

/* ========================================
   ABOUT PAGE
   ======================================== */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-text h2 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 24px;
}

/* 标题 + 配图 横向排列 */
.about-title-row {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 24px;
}
.about-title-row h2 {
    margin-bottom: 0;
    flex: 1;
    min-width: 0;
}
.about-title-image {
    width: 120px;
    height: 120px;
    border-radius: 16px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
}
.about-title-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
@media (max-width: 600px) {
    .about-title-row { flex-direction: column; align-items: flex-start; }
    .about-title-image { width: 100%; height: auto; aspect-ratio: 16/9; }
}

.about-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 16px;
}

.about-visual {
    position: relative;
}

.about-visual-box {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(145deg, var(--bg-card) 0%, rgba(79, 172, 254, 0.05) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.about-visual-box::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 172, 254, 0.08) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
}

.about-visual-box .big-icon {
    font-size: 80px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.value-card {
    text-align: center;
    padding: 32px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.4s ease;
}

.value-card:hover {
    transform: translateY(-4px);
    border-color: rgba(79, 172, 254, 0.15);
}

.value-card i {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 16px;
}

.value-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.value-card p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.contact-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.4s ease;
}

.contact-card:hover {
    transform: translateY(-4px);
    border-color: rgba(79, 172, 254, 0.15);
}

.contact-card i {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 20px;
}

.contact-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ========================================
   NEWS PAGE
   ======================================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.4s ease;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.25);
}

.news-thumb {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.1), rgba(168, 85, 247, 0.08));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.news-thumb i {
    font-size: 40px;
    color: var(--primary);
    opacity: 0.3;
}

.news-thumb .news-date {
    position: absolute;
    bottom: 16px;
    left: 16px;
    padding: 6px 14px;
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(8px);
    border-radius: 50px;
    font-size: 12px;
    color: var(--text-secondary);
}

.news-body {
    padding: 24px;
}

.news-tag {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(79, 172, 254, 0.1);
    color: var(--primary);
    font-size: 11px;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 12px;
}

.news-body h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-body p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-body .read-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
}

.news-body .read-more:hover {
    gap: 10px;
}

/* ========================================
   NEWS FILTER
   ======================================== */
.news-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 22px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.filter-btn:hover {
    color: var(--text-primary);
    border-color: rgba(79, 172, 254, 0.2);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 16px rgba(79, 172, 254, 0.25);
}

.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state p {
    font-size: 15px;
}

/* ========================================
   NEWS DETAIL PAGE
   ======================================== */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.breadcrumb a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.breadcrumb i {
    font-size: 10px;
}

.article-header {
    max-width: 860px;
    margin: 0 auto 48px;
    text-align: center;
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
    margin: 16px 0 24px;
}

.article-meta .news-tag {
    margin-bottom: 0;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta i {
    font-size: 12px;
    color: var(--primary);
}

.article-header h1 {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    line-height: 1.4;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.article-header .article-lead {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.article-hero {
    max-width: 960px;
    margin: 0 auto 48px;
    aspect-ratio: 16 / 7;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.12), rgba(168, 85, 247, 0.1));
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.article-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(79, 172, 254, 0.15) 0%, transparent 70%);
}

.article-hero i {
    font-size: 96px;
    color: var(--primary);
    opacity: 0.4;
    position: relative;
    z-index: 1;
}

.article-body {
    max-width: 760px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-secondary);
}

.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 48px 0 20px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
}

.article-body h3 {
    font-size: 19px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 32px 0 14px;
}

.article-body p {
    margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
    margin: 16px 0 24px 20px;
    padding-left: 20px;
}

.article-body ul {
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body li {
    padding: 4px 0;
}

.article-body li::marker {
    color: var(--primary);
}

.article-body blockquote {
    margin: 28px 0;
    padding: 20px 24px;
    background: var(--bg-card);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-sm);
    font-style: italic;
    color: var(--text-primary);
}

.article-body strong {
    color: var(--text-primary);
    font-weight: 700;
}

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.article-tags {
    max-width: 760px;
    margin: 48px auto 0;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.article-tags .tag-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-right: 6px;
}

.article-tags .tag {
    padding: 6px 14px;
    background: rgba(79, 172, 254, 0.08);
    color: var(--primary);
    font-size: 12px;
    border-radius: 50px;
    border: 1px solid rgba(79, 172, 254, 0.15);
}

.article-nav {
    max-width: 760px;
    margin: 40px auto 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.article-nav a {
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.4s ease;
    display: block;
}

.article-nav a:hover {
    border-color: rgba(79, 172, 254, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.article-nav .nav-direction {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-nav .nav-title {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-nav .next {
    text-align: right;
}

.article-nav .next .nav-direction {
    justify-content: flex-end;
}

.related-articles {
    max-width: 960px;
    margin: 80px auto 0;
}

.related-articles h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .about-intro {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tabs-nav {
        border-radius: var(--radius);
        flex-direction: column;
        width: 100%;
    }
    .tab-btn {
        text-align: center;
    }
    .panel-header {
        flex-direction: column;
        text-align: center;
    }
    .feature-grid,
    .brands-detail-grid,
    .service-detail-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    .values-grid {
        grid-template-columns: 1fr;
    }
    .article-nav {
        grid-template-columns: 1fr;
    }
    .article-nav .next {
        text-align: left;
    }
    .article-nav .next .nav-direction {
        justify-content: flex-start;
    }
    .article-meta {
        flex-direction: column;
        gap: 8px;
    }
}

/* 产品线特性卡片网格（products.html 用） */
.line-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 24px;
}
.line-feature-card {
    display: flex;
    gap: 14px;
    padding: 18px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
}
.line-feature-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(79, 172, 254, 0.12);
}
.line-feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: linear-gradient(135deg, rgba(79, 172, 254, 0.18), rgba(0, 242, 254, 0.18));
    color: var(--primary);
    font-size: 18px;
}
.line-feature-icon.purple {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.18), rgba(217, 70, 239, 0.18));
    color: #c084fc;
}
.line-feature-icon.green {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.18), rgba(132, 204, 22, 0.18));
    color: #4ade80;
}
.line-feature-body h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}
.line-feature-body p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}