/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 图片懒加载优化样式 */
img {
    max-width: 100%;
    height: auto;
    transition: opacity 0.3s ease-in-out;
}

img.loading {
    opacity: 0.5;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

img.loaded {
    opacity: 1;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 图片容器占位优化 */
.image-placeholder {
    background: #f8f9fb;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

/* 性能优化 - 预加载关键资源提示 */
@media (prefetch) {
    .critical-image {
        loading: eager;
    }
}

:root {
    --primary-color: #165DFF;
    --secondary-color: #4080FF;
    --accent-color: #0E42D2;
    --text-primary: #1D2129;
    --text-secondary: #4E5969;
    --text-light: #86909C;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F7F8FA;
    --bg-tertiary: #F2F3F5;
    --border-color: #E5E6EB;
    --success-color: #00B42A;
    --warning-color: #FF7D00;
    --danger-color: #F53F3F;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background: var(--bg-primary);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -22px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
}

/* Hero区域 */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    animation: fadeInUp 0.6s ease;
}

.hero p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    outline: none;
}

.btn-primary {
    background: white;
    color: var(--primary-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.btn-filled {
    background: var(--primary-color);
    color: white;
}

.btn-filled:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

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

/* 产品展示区域 */
.products-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.product-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 64px;
    overflow: hidden;
}

.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(22, 93, 255, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 12px;
    align-self: flex-start;
}

.product-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.product-card-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.product-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--danger-color);
}

.product-card-footer .btn-outline {
    padding: 8px 16px;
    font-size: 14px;
}

/* 资讯卡片 */
.news-section {
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.news-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.news-card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 48px;
}

.news-card-content {
    padding: 24px;
}

.news-card-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(22, 93, 255, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 12px;
}

.news-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-summary {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-light);
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* 资讯列表页 */
.news-list-section {
    padding: 40px 0;
    flex: 1;
}

.filter-bar {
    background: var(--bg-primary);
    padding: 20px 24px;
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.category-tabs {
    display: flex;
    gap: 8px;
}

.category-tab {
    padding: 8px 16px;
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    transition: all 0.3s ease;
}

.category-tab:hover,
.category-tab.active {
    background: var(--primary-color);
    color: white;
}

.search-box {
    display: flex;
    gap: 8px;
}

.search-box input {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    width: 250px;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-box input:focus {
    border-color: var(--primary-color);
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.news-item {
    background: var(--bg-primary);
    padding: 24px;
    border-radius: var(--radius-lg);
    display: flex;
    gap: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.news-item:hover {
    box-shadow: var(--shadow-md);
}

.news-item-image {
    width: 200px;
    height: 140px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
    flex-shrink: 0;
}

.news-item-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-item-category {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(22, 93, 255, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 8px;
    align-self: flex-start;
}

.news-item-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    text-decoration: none;
    transition: color 0.3s ease;
}

.news-item-title:hover {
    color: var(--primary-color);
}

.news-item-summary {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    flex: 1;
}

.news-item-meta {
    display: flex;
    gap: 24px;
    font-size: 12px;
    color: var(--text-light);
}

.news-item-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 32px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.pagination a {
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.pagination .current {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 资讯详情页 - 增强版 */
.news-detail-section {
    padding: 60px 0;
    flex: 1;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

/* 头部Banner区域 */
.news-detail-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: var(--radius-xl);
    padding: 48px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.news-detail-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.news-detail-hero-content {
    position: relative;
    z-index: 1;
}

.news-detail-hero .news-detail-category {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 14px;
    padding: 6px 16px;
    margin-bottom: 20px;
}

.news-detail-hero .news-detail-title {
    color: white;
    font-size: 36px;
    margin-bottom: 20px;
}

.news-detail-hero .news-detail-meta {
    color: rgba(255, 255, 255, 0.9);
}

.news-detail-hero .news-detail-meta span {
    margin-right: 24px;
}

.news-detail-hero .news-summary {
    background: rgba(255, 255, 255, 0.15);
    padding: 16px 20px;
    border-radius: var(--radius-md);
    color: rgba(255, 255, 255, 0.95);
    margin-top: 20px;
    font-size: 15px;
    line-height: 1.6;
}

.news-detail {
    max-width: 900px;
    margin: 0 auto;
}

.news-detail-main {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-md);
    margin-bottom: 40px;
}

.news-detail-header {
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
}

.news-detail-category {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(22, 93, 255, 0.1);
    color: var(--primary-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
}

.news-detail-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

/* 作者信息卡片 */
.author-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
}

.author-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: 600;
}

.author-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

/* 分享按钮 */
.news-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.share-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.share-buttons {
    display: flex;
    gap: 8px;
}

.share-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s ease;
}

.share-btn:hover {
    transform: scale(1.1);
}

.share-wechat { background: #07c160; color: white; }
.share-weibo { background: #e6162d; color: white; }
.share-qq { background: #12b7f5; color: white; }
.share-link { background: var(--bg-tertiary); color: var(--text-secondary); }

.read-time {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 正文内容 */
.news-detail-content {
    font-size: 16px;
    line-height: 1.9;
    color: #333;
}

.news-detail-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 36px 0 18px 0;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--primary-color);
    display: inline-block;
}

.news-detail-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 28px 0 14px 0;
}

.news-detail-content p {
    margin-bottom: 20px;
    text-align: justify;
}

.news-detail-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

.news-detail-content em {
    color: #666;
    font-style: italic;
}

.news-detail-content ul,
.news-detail-content ol {
    margin: 20px 0;
    padding-left: 28px;
}

.news-detail-content li {
    margin-bottom: 10px;
    line-height: 1.8;
}

.news-detail-content blockquote {
    border-left: 4px solid var(--primary-color);
    background: rgba(22, 93, 255, 0.05);
    padding: 20px 24px;
    margin: 24px 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-secondary);
    font-style: italic;
}

/* 高亮数据卡片 */
.highlight-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 32px 0;
}

.highlight-card {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.highlight-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.highlight-card-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

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

/* 上一篇/下一篇导航 */
.news-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

.nav-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
}

.nav-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

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

.nav-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.nav-prev .nav-label { color: var(--text-secondary); }
.nav-next .nav-label { color: var(--text-secondary); justify-content: flex-end; }

/* 相关资讯增强 */
.related-news {
    margin-top: 0;
}

.related-news h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.related-news h3::before {
    content: '';
    width: 4px;
    height: 22px;
    background: var(--primary-color);
    border-radius: 2px;
}

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

.related-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.related-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.related-card-category {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 500;
}

.related-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.related-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-light);
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

/* 标签云 */
.tags-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.tags-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    padding: 6px 14px;
    background: rgba(22, 93, 255, 0.08);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 13px;
    transition: all 0.3s ease;
}

.tag-item:hover {
    background: var(--primary-color);
    color: white;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .news-detail-section {
        padding: 20px 0;
    }
    
    .news-detail-hero {
        padding: 32px 20px;
        margin-bottom: 24px;
    }
    
    .news-detail-hero .news-detail-title {
        font-size: 24px;
    }
    
    .news-detail-main {
        padding: 24px 20px;
    }
    
    .highlight-cards {
        grid-template-columns: 1fr;
    }
    
    .news-navigation {
        grid-template-columns: 1fr;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}

/* 热门内容榜单 */
.hot-section {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.hot-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.hot-section-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.hot-section-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 2px;
}

.hot-tabs {
    display: flex;
    gap: 8px;
}

.hot-tab {
    padding: 6px 14px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.hot-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.hot-tab.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.hot-type-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.hot-type-tab {
    padding: 8px 16px;
    font-size: 13px;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
}

.hot-type-tab:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.hot-type-tab.active {
    background: var(--primary-color);
    color: white;
}

.hot-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hot-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    cursor: pointer;
}

.hot-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(4px);
}

.hot-rank {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.hot-rank.top1 {
    background: linear-gradient(135deg, #ffd700, #ffb700);
    color: #7a5c00;
}

.hot-rank.top2 {
    background: linear-gradient(135deg, #c0c0c0, #a8a8a8);
    color: #5a5a5a;
}

.hot-rank.top3 {
    background: linear-gradient(135deg, #cd7f32, #b8722d);
    color: #5a3512;
}

.hot-rank.normal {
    background: var(--bg-primary);
    color: var(--text-secondary);
}

.hot-info {
    flex: 1;
    min-width: 0;
}

.hot-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hot-title:hover {
    color: var(--primary-color);
}

.hot-meta {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    gap: 12px;
}

.hot-stats {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.hot-stat {
    display: flex;
    align-items: center;
    gap: 4px;
}

.hot-stat i {
    font-size: 12px;
}

.hot-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.hot-loading {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

/* ========== 评论样式 ========== */
.comments-section {
    margin-top: 48px;
    padding: 32px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.comments-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #f0f0f0;
}

.comments-title h3 {
    font-size: 20px;
    color: #333;
}

.comment-count {
    font-size: 14px;
    color: #666;
    background: #f5f5f5;
    padding: 4px 12px;
    border-radius: 16px;
}

/* 评论表单 */
.comment-form-container {
    margin-bottom: 32px;
}

.comment-form {
    background: #fafafa;
    padding: 24px;
    border-radius: 8px;
}

.comment-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.comment-form .form-input,
.comment-form .form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.comment-form .form-input:focus,
.comment-form .form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.comment-form .form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
}

.submit-comment-btn {
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 12px 32px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-comment-btn:hover {
    background: #0046d5;
}

.form-tip {
    font-size: 12px;
    color: #999;
}

/* 评论列表 */
.comments-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.no-comments {
    text-align: center;
    padding: 32px;
    color: #999;
    font-size: 14px;
}

.comment-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: #fff;
    border: 1px solid #f0f0f0;
    border-radius: 8px;
    transition: box-shadow 0.3s;
}

.comment-item:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

.comment-avatar {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
    flex-shrink: 0;
}

.comment-content-wrapper {
    flex: 1;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.comment-author {
    font-weight: 600;
    color: #333;
    font-size: 15px;
}

.comment-time {
    font-size: 12px;
    color: #999;
}

.comment-text {
    color: #555;
    font-size: 14px;
    line-height: 1.7;
}

/* 响应式 */
@media (max-width: 768px) {
    .comments-section {
        padding: 20px;
        margin: 24px 16px;
    }

    .comment-form .form-row {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }

    .submit-comment-btn {
        width: 100%;
    }

    .comment-item {
        flex-direction: column;
        gap: 12px;
    }

    .comment-avatar {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* ========== 点赞按钮样式 ========== */
.like-btn {
    position: relative;
}

.like-btn.liked {
    background: #e8f5e9;
    color: #4caf50;
}

.like-btn.liked::before {
    content: '❤️';
}

.like-count {
    margin-left: 4px;
}

/* 收藏按钮样式 */
.favorite-btn.favorited {
    background: #fff3e0;
    color: #ff9800;
}

.favorite-btn.favorited::before {
    content: '⭐';
}

.favorite-count {
    margin-left: 4px;
}

.case-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.case-info .client-name {
    font-weight: 500;
}

.case-info .view-count {
    opacity: 0.7;
}

.pagination-wrapper {
    padding: 32px 0;
    margin-top: 32px;
}

/* 首页专用样式 */
.empty-state-full {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state-full p:first-child {
    font-size: 18px;
    margin-bottom: 8px;
}

.empty-state-full p:last-child {
    font-size: 14px;
    opacity: 0.7;
}

.section-footer {
    text-align: center;
    padding: 20px 0 40px;
}

.news-card-link {
    color: inherit;
    text-decoration: none;
    display: block;
}

.news-card-link:hover .news-card {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

/* 资讯详情页样式 */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    z-index: 99999;
    transition: width 0.1s ease;
}

.toc-sidebar {
    position: sticky;
    top: 100px;
    width: 240px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    padding: 20px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-right: 30px;
}

.toc-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: 8px;
}

.toc-list a {
    display: block;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.2s ease;
    border-left: 2px solid transparent;
}

.toc-list a:hover {
    color: var(--primary-color);
    background: rgba(22, 93, 255, 0.05);
    border-left-color: var(--primary-color);
}

.toc-list a.active {
    color: var(--primary-color);
    background: rgba(22, 93, 255, 0.1);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

.news-layout {
    display: flex;
    gap: 30px;
}

.news-main-content {
    flex: 1;
}

.key-points-card {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 32px;
    border: 1px solid #bae6fd;
}

.key-points-title {
    font-size: 16px;
    font-weight: 600;
    color: #0369a1;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.key-points-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.key-points-list li {
    padding: 10px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.6;
}

.key-points-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 10px;
    width: 20px;
    height: 20px;
    background: #10b981;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 32px 0;
}

.stat-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.stat-icon {
    font-size: 28px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.emphasis-quote {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-left: 4px solid #f59e0b;
    padding: 24px;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
    margin: 32px 0;
}

.emphasis-quote p {
    color: #92400e;
    font-size: 15px;
    line-height: 1.8;
    margin: 0;
}

.emphasis-quote strong {
    color: #78350f;
}

.interaction-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: 32px;
    margin: 40px 0;
    text-align: center;
}

.interaction-section .content-tip {
    font-size: 13px;
    color: var(--text-light);
    margin: 0;
}

.interaction-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.interaction-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.interaction-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: white;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.interaction-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.interaction-btn.liked {
    background: #fef2f2;
    border-color: #f87171;
    color: #dc2626;
}

.interaction-btn.collected {
    background: #fef3c7;
    border-color: #f59e0b;
    color: #d97706;
}

.related-card {
    position: relative;
    overflow: hidden;
}

.related-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.related-card:hover::before {
    opacity: 1;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 9999;
    font-size: 20px;
    border: none;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.news-banner {
    background: linear-gradient(90deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding: 12px 20px;
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.news-banner-icon {
    font-size: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.news-banner-text {
    font-size: 14px;
    flex: 1;
}

.news-banner-tag {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
}

.news-detail-section {
    padding: 40px 0;
    background: var(--bg-secondary);
}

.news-detail {
    background: white;
    border-radius: var(--radius-xl);
    padding: 40px;
}

.news-detail-hero {
    margin-bottom: 32px;
}

.news-detail-hero-content {
    text-align: center;
}

.news-detail-category {
    display: inline-block;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 16px;
}

.news-detail-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.news-detail-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    font-size: 14px;
    color: var(--text-secondary);
}

.news-summary {
    background: linear-gradient(135deg, #fef9c3 0%, #fef08a 100%);
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    margin-top: 24px;
    font-size: 15px;
    color: #713f12;
    text-align: left;
}

.author-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
}

.author-avatar {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    font-weight: 600;
}

.author-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

.news-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
}

.share-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-right: 8px;
}

.read-time {
    margin-left: auto;
    font-size: 13px;
    color: var(--text-light);
}

.news-detail-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.news-detail-content h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.news-detail-content p {
    margin-bottom: 16px;
}

.tags-section {
    margin: 32px 0;
}

.tags-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    transition: all 0.3s ease;
}

/* ==================== 骨架屏样式 ==================== */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-hidden {
    display: none !important;
}

/* 产品卡片骨架屏 */
.product-card-skeleton {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.product-card-image-skeleton {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.product-card-content-skeleton {
    padding: 16px;
}

.product-card-category-skeleton {
    width: 60px;
    height: 16px;
    border-radius: 8px;
    margin-bottom: 8px;
}

.product-card-title-skeleton {
    width: 80%;
    height: 20px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.product-card-desc-skeleton {
    width: 100%;
    height: 16px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.product-card-desc-skeleton:last-child {
    width: 60%;
    margin-bottom: 16px;
}

.product-card-footer-skeleton {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.product-price-skeleton {
    width: 80px;
    height: 20px;
    border-radius: 4px;
}

.product-btn-skeleton {
    width: 100px;
    height: 36px;
    border-radius: 18px;
}

/* 新闻卡片骨架屏 */
.news-card-skeleton {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.news-card-category-skeleton {
    width: 70px;
    height: 16px;
    border-radius: 8px;
    margin-bottom: 12px;
}

.news-card-title-skeleton {
    width: 100%;
    height: 24px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.news-card-summary-skeleton {
    width: 100%;
    height: 16px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.news-card-summary-skeleton:last-of-type {
    width: 70%;
    margin-bottom: 16px;
}

.news-card-meta-skeleton {
    display: flex;
    gap: 16px;
}

.news-card-meta-item-skeleton {
    width: 60px;
    height: 14px;
    border-radius: 4px;
}

/* 案例卡片骨架屏 */
.case-card-skeleton {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.case-card-image-skeleton {
    width: 100%;
    height: 180px;
}

.case-card-content-skeleton {
    padding: 16px;
}

.case-card-title-skeleton {
    width: 90%;
    height: 22px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.case-card-desc-skeleton {
    width: 100%;
    height: 16px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.case-card-desc-skeleton:last-child {
    width: 65%;
    margin-bottom: 16px;
}

.case-card-meta-skeleton {
    width: 100px;
    height: 16px;
    border-radius: 4px;
}

/* 详情页骨架屏 */
.detail-hero-skeleton {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.detail-category-skeleton {
    width: 80px;
    height: 20px;
    border-radius: 10px;
    margin-bottom: 16px;
}

.detail-title-skeleton {
    width: 80%;
    height: 36px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.detail-meta-skeleton {
    display: flex;
    gap: 20px;
}

.detail-meta-item-skeleton {
    width: 80px;
    height: 16px;
    border-radius: 4px;
}

.detail-content-skeleton {
    padding: 40px 0;
}

.detail-content-line-skeleton {
    width: 100%;
    height: 20px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.detail-content-line-skeleton:nth-child(3n) {
    width: 85%;
}

.detail-content-line-skeleton:nth-child(5n) {
    width: 70%;
}

/* 列表页骨架屏网格 */
.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

@media (max-width: 768px) {
    .skeleton-grid {
        grid-template-columns: 1fr;
    }
}

/* 深色模式骨架屏 */
[data-theme="dark"] .skeleton {
    background: linear-gradient(90deg, #2a2a4e 25%, #3a3a5e 50%, #2a2a4e 75%);
    background-size: 200% 100%;
}

.tag-item:hover {
    background: var(--primary-color);
    color: white;
}

.news-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 40px 0;
}

.nav-card {
    background: var(--bg-secondary);
    padding: 20px;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.nav-label {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.nav-title {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.nav-prev {
    text-align: left;
}

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

.related-news {
    margin-top: 40px;
}

.related-news h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.related-grid a {
    text-decoration: none;
}

.related-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: all 0.3s ease;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

/* 首页空状态样式 */
.empty-state-full {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px;
    color: var(--text-secondary);
}

.empty-state-full p {
    margin-top: 10px;
    font-size: 14px;
}

.section-footer {
    text-align: center;
    margin-top: 40px;
}

.related-card-category {
    font-size: 12px;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.related-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card-meta {
    font-size: 13px;
    color: var(--text-light);
    display: flex;
    gap: 12px;
}

@media (max-width: 1024px) {
    .toc-sidebar {
        display: none;
    }
    
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .news-detail {
        padding: 24px;
    }
    
    .news-detail-title {
        font-size: 24px;
    }
    
    .stats-row {
        grid-template-columns: 1fr;
    }
    
    .interaction-buttons {
        flex-direction: column;
    }
    
    .news-navigation {
        grid-template-columns: 1fr;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .news-detail-meta {
        flex-wrap: wrap;
        gap: 12px;
    }
}

/* 产品详情页Hero */
.product-hero {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding: 80px 0;
}

.product-hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.product-hero-image {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.product-hero-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-hero-text h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.product-hero-text .category {
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 14px;
    display: inline-block;
    margin-bottom: 20px;
}

.product-hero-text .description {
    font-size: 16px;
    opacity: 0.9;
    line-height: 1.8;
    margin-bottom: 30px;
}

.product-hero-text .price {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 30px;
}

.product-hero-text .price span {
    font-size: 18px;
    font-weight: 400;
    opacity: 0.8;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 30px;
}

.product-tag {
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
}

.share-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.share-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 16px;
}

.share-btn:hover {
    background: white;
    color: var(--primary-color);
}

.cta-buttons {
    display: flex;
    gap: 16px;
}

.cta-btn {
    padding: 14px 32px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cta-btn.primary {
    background: white;
    color: var(--primary-color);
}

.cta-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.cta-btn.secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.cta-btn.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.product-details-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.product-details-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.product-content-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.content-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
}

.product-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.product-content p {
    margin-bottom: 20px;
    max-width: 100%;
    overflow-wrap: break-word;
}

.product-content img {
    max-width: 100%;
    max-height: 500px;
    width: auto;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
    object-fit: contain;
}

.product-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 24px 0 16px;
    max-width: 100%;
}

.product-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 20px 0 12px;
    max-width: 100%;
}

.product-content table {
    max-width: 100%;
    width: auto;
    border-collapse: collapse;
    margin: 16px 0;
    overflow-x: auto;
    display: block;
}

.product-content table td,
.product-content table th {
    padding: 12px;
    text-align: left;
    border: 1px solid #e5e7eb;
    max-width: 300px;
    word-wrap: break-word;
}

.product-content pre,
.product-content code {
    max-width: 100%;
    overflow-x: auto;
    background: #f5f5f5;
    padding: 16px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.product-content ul,
.product-content ol {
    margin-left: 20px;
    margin-bottom: 20px;
    max-width: 100%;
}

.product-content li {
    margin-bottom: 8px;
    max-width: 100%;
    word-wrap: break-word;
}

.product-content div {
    max-width: 100%;
    overflow-x: auto;
}

.product-content iframe {
    max-width: 100%;
    width: 100%;
    height: auto;
    aspect-ratio: 16/9;
}

.product-features {
    margin-top: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 24px;
}

.feature-item {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 20px;
    border-radius: 12px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.feature-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.feature-text {
    font-size: 15px;
    color: var(--text-primary);
    font-weight: 500;
}

.product-specs {
    margin-top: 40px;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 24px;
}

.specs-table th,
.specs-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.specs-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
    width: 30%;
}

.specs-table tr:last-child td {
    border-bottom: none;
}

.product-faq {
    margin-top: 40px;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-toggle {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.faq-toggle.open {
    transform: rotate(180deg);
}

.faq-answer {
    display: none;
    padding-top: 16px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.faq-answer.open {
    display: block;
}

.product-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.sidebar-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.quick-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar-card .cta-btn {
    color: var(--primary-color);
}

.sidebar-card .cta-btn.primary {
    background: var(--primary-color);
    color: white;
}

.quick-actions .cta-btn {
    width: 100%;
    justify-content: center;
}

.info-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 4px;
}

.info-value {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.contact-box {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding: 30px;
    border-radius: 16px;
}

.contact-box h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 15px;
    color: white;
}

.contact-item span {
    color: white;
}

.contact-icon {
    font-size: 20px;
    color: white;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: white;
    text-decoration: none;
    opacity: 0.9;
    margin-bottom: 20px;
    font-size: 15px;
    transition: opacity 0.3s ease;
}

.back-link:hover {
    opacity: 1;
}

.related-products {
    padding: 60px 0;
    background: white;
}

.related-products h2 {
    font-size: 28px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-primary);
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.related-product-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    cursor: pointer;
}

.related-product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.related-product-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
}

.related-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-product-content {
    padding: 20px;
}

.related-product-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.related-product-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-product-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

@media (max-width: 1024px) {
    .product-hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-details-container {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-hero {
        padding: 60px 20px;
    }
    
    .product-hero-text h1 {
        font-size: 28px;
    }
    
    .product-hero-text .price {
        font-size: 36px;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .product-content-card {
        padding: 24px;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-table th,
    .specs-table td {
        padding: 12px 8px;
        font-size: 14px;
    }
}

.news-detail-meta {
    display: flex;
    gap: 24px;
    font-size: 14px;
    color: var(--text-light);
}

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

.news-detail-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
}

.news-detail-content p {
    margin-bottom: 20px;
}

.news-detail-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 32px 0 16px;
}

/* 相关资讯 */
.related-news {
    margin-top: 60px;
}

.related-news h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
}

.related-grid a {
    text-decoration: none;
    color: inherit;
}

.related-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.related-card:hover {
    box-shadow: var(--shadow-md);
}

.related-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card-date {
    font-size: 12px;
    color: var(--text-light);
}

/* 关于我们页面 */
.about-section {
    padding: 80px 0;
    flex: 1;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-sm);
}

.about-content h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.about-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.contact-info {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.contact-info h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 48px 0 24px;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 32px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section p {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.8;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.6;
}

/* 页面Hero区域 - 通用样式 */
.page-hero {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.page-hero h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* 筛选区域 */
.filter-section {
    background: white;
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
}

.filter-container {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: 50px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-box input {
    background: transparent;
    border: none;
    outline: none;
    padding: 8px 12px;
    font-size: 14px;
    width: 200px;
}

.search-box button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 8px 12px;
    border-left: 1px solid var(--border-color);
}

.search-box button:hover {
    color: var(--primary-color);
}

.filter-btn {
    padding: 10px 24px;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: 50px;
    cursor: pointer;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    color: var(--text-primary);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

a.filter-btn {
    color: var(--text-primary);
}

a.filter-btn:hover {
    color: white;
}

/* 子分类栏 */
.sub-category-bar {
    display: none;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: #f8fafc;
    border-radius: 8px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.sub-category-bar.show {
    display: flex;
}

.sub-category-label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.sub-category-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.sub-category-tab {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    background: white;
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.sub-category-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.sub-category-tab.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 产品列表区域 */
.products-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* 产品卡片 */
.product-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.product-image {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-content {
    padding: 24px;
}

.product-category {
    display: inline-block;
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 12px;
}

.product-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.product-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.product-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.product-price span {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-light);
}

.product-btn {
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.product-btn:hover {
    background: #1d4ed8;
}

/* 案例列表区域 */
.cases-section {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* 案例卡片 */
.case-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.case-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-placeholder {
    font-size: 64px;
    color: white;
}

.case-category-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.case-content {
    padding: 20px;
}

.case-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.case-link {
    display: inline-block;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.case-link:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

/* 首页案例展示区域 */
.cases-section-home {
    padding: 80px 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.cases-section-home .section-header h2 {
    color: var(--text-primary);
}

.cases-grid-home {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.case-card-home {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.case-card-home:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.12);
}

.case-card-image {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.case-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.case-card-image span {
    font-size: 48px;
    color: white;
}

.case-card-overlay {
    position: absolute;
    top: 12px;
    left: 12px;
}

.case-card-category {
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.case-card-content {
    padding: 20px;
}

.case-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-card-description {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-card-client {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 12px;
}

.case-card-link {
    display: inline-block;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.case-card-link:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    background: white;
    border-radius: 16px;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--text-light);
}

/* 关于我们页面Hero */
.about-hero {
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.about-hero h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.about-hero p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* 关于我们内容区域 */
.about-content-wrapper {
    padding: 60px 0;
    flex: 1;
}

.about-section {
    background: white;
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.about-section .section-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary-color);
    display: block;
}

.about-section .section-title span {
    margin-right: 10px;
}

.about-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.about-text p {
    margin-bottom: 16px;
}

/* 使命愿景 */
.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

/* 全局移动端优化 - 百度SEO建议 */
@media (max-width: 768px) {
    /* 导航栏移动端优化 */
    .navbar .container {
        height: 56px;
        padding: 0 16px;
    }
    
    .logo {
        font-size: 20px;
    }
    
    .nav-links {
        gap: 16px;
        font-size: 14px;
    }
    
    /* 容器移动端优化 */
    .container {
        padding: 0 16px;
    }
    
    /* 按钮移动端优化 */
    .btn {
        padding: 12px 24px;
        font-size: 16px;
    }
    
    /* 图片响应式优化 */
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* 表单移动端优化 - 防止iOS缩放 */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    textarea,
    select {
        font-size: 16px !important;
    }
    
    /* 页面区域优化 */
    .page-hero {
        padding: 60px 20px;
    }
    
    .page-hero h1 {
        font-size: 28px;
    }
    
    .page-hero p {
        font-size: 16px;
    }
    
    /* 首页Hero优化 */
    .hero .container {
        padding: 0 16px;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    /* 网格布局优化 */
    .products-grid,
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 页脚移动端优化 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer {
        padding: 40px 20px 24px;
    }
    
    /* 关于我们页面优化 */
    .about-hero {
        padding: 60px 20px;
    }
    
    .about-hero h1 {
        font-size: 28px;
    }
    
    .about-hero p {
        font-size: 16px;
    }
    
    .about-section {
        padding: 24px;
    }
    
    .about-section .section-title {
        font-size: 20px;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
    }
    
    /* 返回顶部按钮优化 */
    .back-to-top {
        width: 44px;
        height: 44px;
        bottom: 20px;
        right: 20px;
    }
}

/* 平板设备优化 */
@media (min-width: 769px) and (max-width: 1024px) {
    .products-grid,
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

.mission-card,
.vision-card {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border-radius: 16px;
    padding: 28px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.mission-card:hover,
.vision-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.mission-card .icon,
.vision-card .icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.mission-card h3,
.vision-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.mission-card p,
.vision-card p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* 联系方式 */
.contact-section {
    background: white;
    border-radius: 16px;
    padding: 40px;
    margin-top: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.contact-section h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

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

.contact-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.contact-card .icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.contact-card .label {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.contact-card .value {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-hero,
    .about-hero {
        padding: 60px 20px;
    }
    
    .page-hero h1,
    .about-hero h1 {
        font-size: 32px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content-wrapper {
        padding: 30px 0;
    }
    
    .about-section,
    .contact-section {
        padding: 24px;
        margin: 0 16px 20px;
    }
}

/* 管理后台样式 */
.admin-container {
    display: flex;
    min-height: calc(100vh - 64px);
}

.admin-sidebar {
    width: 240px;
    background: var(--text-primary);
    padding: 24px 0;
}

.admin-nav {
    list-style: none;
}

.admin-nav li {
    margin-bottom: 4px;
}

.admin-nav a {
    display: block;
    padding: 12px 24px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
}

.admin-nav a:hover,
.admin-nav a.active {
    background: var(--primary-color);
    color: white;
}

.admin-main {
    flex: 1;
    padding: 32px;
    background: var(--bg-secondary);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.admin-header h1 {
    font-size: 28px;
    font-weight: 700;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-primary);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 表格 */
.admin-table {
    width: 100%;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.admin-table table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 14px;
    color: var(--text-secondary);
}

.admin-table td {
    font-size: 14px;
    color: var(--text-primary);
}

.admin-table tr:hover td {
    background: var(--bg-secondary);
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-published {
    background: rgba(0, 180, 42, 0.1);
    color: var(--success-color);
}

.status-draft {
    background: rgba(255, 125, 0, 0.1);
    color: var(--warning-color);
}

.actions {
    display: flex;
    gap: 8px;
}

.actions .btn {
    padding: 6px 12px;
    font-size: 12px;
}

/* 表单 */
.form-container {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 200px;
    line-height: 1.6;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

/* 登录页面 */
.login-container {
    min-height: calc(100vh - 64px);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
}

.login-box {
    background: var(--bg-primary);
    padding: 48px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 32px;
}

.error-message {
    background: rgba(245, 63, 63, 0.1);
    color: var(--danger-color);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 14px;
}

/* 404页面 */
.error-page {
    min-height: calc(100vh - 64px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
}

.error-page h1 {
    font-size: 120px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.error-page h2 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 16px;
}

.error-page p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* 响应式 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-item {
        flex-direction: column;
    }
    
    .news-item-image {
        width: 100%;
        height: 180px;
    }
    
    .filter-bar {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .category-tabs {
        overflow-x: auto;
        padding-bottom: 8px;
    }
    
    .search-box {
        width: 100%;
    }
    
    .search-box input {
        flex: 1;
        width: auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .admin-container {
        flex-direction: column;
    }
    
    .admin-sidebar {
        width: 100%;
        padding: 12px 0;
    }
    
    .admin-nav {
        display: flex;
        overflow-x: auto;
    }
    
    .admin-nav a {
        white-space: nowrap;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .news-detail {
        padding: 24px;
    }
    
    .news-detail-title {
        font-size: 24px;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}