/* 网站首页样式 */

body.page-home {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-card);
}

.page-home .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 首页特有按钮样式 - 使用公共button组件 */
.btn-outline {
    background: transparent;
    color: var(--color-info);
    border: 1px solid var(--color-info);
}

.btn-outline:hover {
    background: var(--color-info);
    color: var(--bg-card);
}

.btn-light {
    color: var(--bg-card);
    border-color: var(--bg-card);
}

.btn-light:hover {
    background: var(--bg-card);
    color: var(--color-info);
}

/* 头部导航 */
.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown, 1000);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-base);
    transition: box-shadow 0.3s ease;
}

.site-header .header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

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

.logo-image {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
}

.page-home .logo-text {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* 导航菜单 */
.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item-wrapper {
    position: relative;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--text-regular);
    font-weight: 500;
    font-size: 15px;
    border-radius: 8px;
    transition: var(--transition-base);
    cursor: pointer;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-info);
    background: rgba(var(--color-info-rgb), 0.08);
}

.dropdown-icon {
    transition: transform 0.3s ease;
}

.has-dropdown:hover .dropdown-icon {
    transform: rotate(180deg);
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 160px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: var(--z-dropdown);
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-item {
    display: block;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--text-regular);
    font-size: 14px;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    color: var(--color-info);
    background: rgba(var(--color-info-rgb), 0.08);
}

/* 头部操作区 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-regular);
    padding: 5px;
    border-radius: 6px;
    z-index: var(--z-toast, 9999);
    transition: background 0.2s ease;
}

.mobile-menu-btn:hover {
    background: rgba(var(--color-info-rgb), 0.08);
}

.mobile-menu-btn span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: translateY(5px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: translateY(-5px) rotate(-45deg);
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-base);
    padding: 16px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    z-index: var(--z-toast, 9999);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.mobile-menu.active {
    transform: translateY(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-nav-item {
    display: block;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.mobile-nav-item:hover {
    background: rgba(var(--color-info-rgb), 0.08);
    color: var(--color-info);
}

.mobile-nav-group {
    padding-left: 16px;
    margin-bottom: 8px;
}

.mobile-nav-title {
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Banner轮播组件 */
.banner-carousel {
    margin-top: 64px;
    position: relative;
    max-width: var(--content-max-width, 1200px);
    margin-left: auto;
    margin-right: auto;
    padding: 0 var(--spacing-lg, 20px);
}

.carousel-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    box-shadow: var(--shadow-lg, 0 8px 32px rgba(0, 0, 0, 0.12));
    background: var(--bg-hover);
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    height: 480px;
    overflow: hidden;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
}

.carousel-link {
    display: block;
    width: 100%;
    height: 100%;
}

.carousel-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.carousel-caption {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    padding: 40px;
    text-align: center;
    color: white;
    z-index: 2;
}

.carousel-title {
    font-size: 42px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
    line-height: 1.3;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.carousel-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.carousel-btn-more {
    display: inline-block;
    padding: 14px 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 30px;
    background: var(--color-info);
    color: white;
    transition: var(--transition-base);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.carousel-btn-more:hover {
    background: var(--color-info-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 轮播控制按钮 */
.carousel-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
}

.carousel-prev,
.carousel-next {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.carousel-prev:hover,
.carousel-next:hover {
    background: rgba(255, 255, 255, 0.35);
}

/* 轮播指示器 */
.carousel-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition-base);
    display: block;
}

.carousel-dot.active {
    background: white;
    width: 32px;
    border-radius: 6px;
}

/* Banner空状态 */
.banner-empty {
    height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-dark, #0D47A1) 100%);
}

.banner-placeholder {
    text-align: center;
    color: white;
    padding: 40px;
}

.banner-placeholder h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.banner-placeholder p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

/* 主要内容区域 - 响应式最大宽度限制 */
main > section {
    max-width: 100%;
}

/* 功能特性 */
.features-section {
    padding: 80px 0;
    background: var(--bg-hover);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header.text-left {
    text-align: left;
}

.section-title {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-icon svg {
    color: var(--bg-card);
}

.feature-icon.blue {
    background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-dark, #0D47A1) 100%);
}

.feature-icon.green {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-dark, #008022) 100%);
}

.feature-icon.purple {
    background: linear-gradient(135deg, var(--color-primary-light, #722ED1) 0%, var(--color-primary-light-dark, #531DAB) 100%);
}

.feature-icon.orange {
    background: linear-gradient(135deg, var(--color-orange, #FA8C16) 0%, var(--color-orange-dark, #D46B08) 100%);
}

.feature-icon.red {
    background: linear-gradient(135deg, var(--color-error) 0%, var(--color-error-dark, #D91A1A) 100%);
}

.feature-icon.cyan {
    background: linear-gradient(135deg, var(--color-cyan, #13C2C2) 0%, var(--color-cyan-dark, #08979C) 100%);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

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

.feature-link:hover {
    color: var(--color-info-dark, #0D47A1);
}

/* 资讯中心页面 */
.page-section {
    padding: 60px 0 80px;
    background: var(--bg-card);
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light, #f0f0f0);
}

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

.page-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

/* 新闻列表页 */
.news-list-page .news-filter {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-categories {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-tag {
    display: inline-block;
    padding: 8px 20px;
    font-size: 14px;
    color: var(--text-regular);
    background: var(--bg-hover);
    border-radius: 24px;
    text-decoration: none;
    transition: all 0.25s ease;
    border: 1px solid transparent;
}

.filter-tag:hover {
    color: var(--color-info);
    background: rgba(var(--color-info-rgb), 0.08);
}

.filter-tag.active {
    color: var(--bg-card, #fff);
    background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-dark, #0D47A1) 100%);
    box-shadow: 0 4px 12px rgba(var(--color-info-rgb), 0.3);
}

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

.search-input {
    width: 240px;
    padding: 10px 16px;
    border: 1px solid var(--border-base);
    border-radius: 24px;
    font-size: 14px;
    background: var(--bg-card);
    outline: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.search-input:focus {
    border-color: var(--color-info);
    box-shadow: 0 0 0 3px rgba(var(--color-info-rgb), 0.12);
}

.search-input::placeholder {
    color: var(--text-placeholder, #bbb);
}

/* 新闻卡片 - 列表页专用 */
.news-list-page .news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-list-page .news-card {
    background: var(--bg-card, #fff);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-light, #f0f0f0);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.news-list-page .news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    border-color: transparent;
}

.news-list-page .news-image {
    display: block;
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--bg-active, #f5f5f5);
}

.news-list-page .news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.news-list-page .news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-list-page .news-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-list-page .news-badge {
    display: inline-block;
    padding: 2px 8px;
    background: linear-gradient(135deg, var(--color-error, #FF4D4F) 0%, var(--color-error-dark, #CF1322) 100%);
    color: var(--bg-card, #fff);
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    margin-right: 8px;
}

.news-list-page .news-category {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(var(--color-info-rgb), 0.1);
    color: var(--color-info);
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
    margin-bottom: 12px;
}

.news-list-page .news-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-list-page .news-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.news-list-page .news-title a:hover {
    color: var(--color-info);
}

.news-list-page .news-summary {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.news-list-page .news-meta {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-light, #f0f0f0);
}

.news-list-page .meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.news-list-page .meta-item svg {
    color: var(--color-info);
}

.pagination {
    margin-top: 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

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

.pagination-controls {
    display: flex;
    gap: 6px;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    font-size: 14px;
    color: var(--text-regular);
    background: var(--bg-card, #fff);
    border: 1px solid var(--border-base);
    border-radius: 6px;
    text-decoration: none;
    transition: var(--transition-fast);
}

.page-btn:hover {
    color: var(--color-info);
    border-color: var(--color-info);
}

.page-btn.active {
    color: var(--bg-card, #fff);
    background: var(--color-info);
    border-color: var(--color-info);
}

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
}

.empty-state svg {
    color: var(--border-base);
    margin-bottom: 16px;
}

.empty-state p {
    color: var(--text-secondary);
    font-size: 16px;
}

/* 新闻详情页 */
.news-detail-page {
    background: var(--bg-card);
}

.news-detail {
    max-width: 860px;
    margin: 0 auto;
    background: var(--bg-card, #fff);
    border-radius: 16px;
    padding: 48px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.news-detail .news-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-light, #f0f0f0);
}

.news-detail .news-title {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 20px;
}

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

.news-detail .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-secondary);
}

.news-detail .meta-item svg {
    color: var(--color-info);
}

.news-detail .news-cover {
    margin: 0 0 32px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.news-detail .news-cover img {
    width: 100%;
    display: block;
}

.news-detail .news-body {
    line-height: 1.8;
}

.news-detail .news-summary {
    font-size: 16px;
    color: var(--text-primary);
    background: linear-gradient(135deg, rgba(var(--color-info-rgb), 0.06) 0%, rgba(var(--color-info-rgb), 0.02) 100%);
    padding: 16px 20px;
    border-radius: 8px;
    border-left: 4px solid var(--color-info);
    margin-bottom: 24px;
}

.news-detail .news-content {
    font-size: 16px;
    color: var(--text-regular);
    line-height: 1.85;
    margin-bottom: 32px;
}

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

.news-detail .news-footer {
    padding-top: 24px;
    border-top: 1px solid var(--border-light, #f0f0f0);
    text-align: center;
}

/* 相关新闻 */
.related-news {
    max-width: 860px;
    margin: 40px auto 0;
    background: var(--bg-card, #fff);
    border-radius: 16px;
    padding: 32px 48px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.related-news .section-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-info);
    display: inline-block;
}

.related-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.related-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px dashed var(--border-light, #f0f0f0);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.related-item:hover {
    padding-left: 8px;
}

.related-title {
    font-size: 15px;
    color: var(--text-regular);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.related-item:hover .related-title {
    color: var(--color-info);
}

.related-date {
    font-size: 13px;
    color: var(--text-secondary);
    margin-left: 16px;
    flex-shrink: 0;
}

/* 资讯中心响应式 */
@media (max-width: 1024px) {
    .news-list-page .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-section {
        padding: 40px 0 60px;
    }
    
    .page-title {
        font-size: 28px;
    }
    
    .news-list-page .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-list-page .news-filter {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-search .search-form {
        width: 100%;
    }
    
    .search-input {
        flex: 1;
        width: auto;
    }
    
    .news-detail {
        padding: 24px 20px;
        border-radius: 12px;
    }
    
    .news-detail .news-title {
        font-size: 22px;
    }
    
    .news-detail .news-meta {
        gap: 12px;
    }
    
    .related-news {
        padding: 24px 20px;
        margin-top: 24px;
    }
    
    .pagination {
        flex-direction: column;
        align-items: center;
    }
}

/* 首页资讯卡片样式（保留） */
.news-section {
    padding: 80px 0 40px;
    background: var(--bg-card);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    background: var(--bg-hover);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition-base);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.news-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(var(--color-info-rgb), 0.1);
    color: var(--color-info);
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
    margin-bottom: 16px;
}

.news-tag.tag-announcement {
    background: rgba(250, 140, 22, 0.1);
    color: var(--color-orange, #FA8C16);
}

.news-tag.tag-industry {
    background: rgba(var(--color-success-rgb), 0.1);
    color: var(--color-success);
}

.news-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.news-more {
    font-size: 13px;
    color: var(--color-info);
    text-decoration: none;
    font-weight: 500;
}

.news-more:hover {
    text-decoration: underline;
}

/* 页脚 */
.site-footer {
    background: var(--text-primary);
    padding: 48px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 32px;
}

.footer-section .footer-title {
    color: var(--bg-card);
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 16px;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links li a:hover {
    color: var(--bg-card);
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
    line-height: 1.5;
}

.footer-contact li svg {
    flex-shrink: 0;
    color: var(--color-info);
}

.footer-bottom {
    border-top: 1px solid var(--text-primary, #2D3339);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

/* 回到顶部 */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: var(--color-info);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
    z-index: var(--z-dropdown, 1000);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-info-dark, #0D47A1);
    transform: translateY(-2px);
}

/* 响应式设计 - PC 大屏 */
@media (min-width: 1440px) {
    .container {
        max-width: var(--content-max-width-lg, 1400px);
    }
    
    .banner-carousel {
        max-width: var(--content-max-width-lg, 1400px);
    }
    
    .carousel-content .container {
        max-width: var(--content-max-width-lg, 1400px);
    }
    
    .carousel-content h2 {
        font-size: 48px;
    }
    
    .carousel-content p {
        font-size: 18px;
    }
    
    .carousel-track {
        height: 560px;
    }
}

/* 响应式设计 - 超宽屏 */
@media (min-width: 1920px) {
    .container {
        max-width: var(--content-max-width-xl, 1600px);
    }
    
    .banner-carousel {
        max-width: var(--content-max-width-xl, 1600px);
    }
    
    .carousel-content .container {
        max-width: var(--content-max-width-xl, 1600px);
    }
    
    .carousel-content h2 {
        font-size: 56px;
    }
    
    .carousel-content p {
        font-size: 20px;
    }
    
    .carousel-track {
        height: 640px;
    }
    
    .section-title {
        font-size: 40px;
    }
}

/* 响应式设计 - PC 小屏 */
@media (max-width: 1024px) {
    .banner-carousel {
        max-width: 100%;
        padding: 0;
    }
    
    .carousel-container {
        border-radius: 0;
        box-shadow: none;
    }
    
    .carousel-content .container {
        max-width: 100%;
        padding: 0 var(--spacing-md, 16px);
    }
    
    .carousel-content h2 {
        font-size: 36px;
    }
    
    .features-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 响应式设计 - 平板/手机横屏 */
@media (max-width: 768px) {
    .site-header {
        padding: 0 16px;
    }
    
    .header-container {
        justify-content: space-between;
    }
    
    .header-nav {
        display: none;
    }
    
    .header-right {
        margin-left: auto;
    }
    
    .mobile-menu-btn {
        display: flex;
        width: 24px;
        height: 24px;
        gap: 3px;
        padding: 4px;
    }
    
    .mobile-menu-btn span {
        width: 14px;
        height: 2px;
    }
    
    /* 小屏下广告弹窗关闭按钮：收敛尺寸，避免遮挡广告内容 */
    .popup-ad-close {
        width: 22px;
        height: 22px;
        top: 6px;
        right: 6px;
    }
    
    .popup-ad-close svg {
        width: 12px;
        height: 12px;
    }
    
    .carousel-wrapper,
    .banner-empty {
        height: 320px;
    }
    
    .carousel-title {
        font-size: 28px;
    }
    
    .carousel-desc {
        font-size: 16px;
    }
    
    .carousel-prev {
        left: 12px;
    }
    
    .carousel-next {
        right: 12px;
    }
    
    .carousel-prev,
    .carousel-next {
        width: 40px;
        height: 40px;
    }
    
    .features-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 32px;
    }
    
    .footer-contact li {
        justify-content: center;
    }
    
    .carousel-dots {
        bottom: 16px;
    }
    
    .carousel-caption {
        padding: 24px;
    }
    
    .carousel-btn-more {
        padding: 12px 32px;
        font-size: 15px;
    }
}

/* 响应式设计 - 小屏手机 */
@media (max-width: 600px) {
    .container {
        padding: 0 16px;
    }
    
    .carousel-wrapper,
    .banner-empty {
        height: 260px;
    }
    
    .carousel-title {
        font-size: 24px;
    }
    
    .carousel-desc {
        font-size: 14px;
        margin-bottom: 20px;
    }
    
    .carousel-caption {
        padding: 20px;
    }
    
    .carousel-btn-more {
        padding: 10px 28px;
        font-size: 14px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .feature-card {
        padding: 24px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* 加载状态样式 */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    width: 100%;
}

.loading-state p,
.empty-state p {
    color: var(--text-secondary);
    margin-top: 16px;
    font-size: 14px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-base);
    border-top-color: var(--color-info);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 隐藏字段 */
#logoText,
#footerLogoText {
    display: none;
}

/* 首页弹窗广告样式 - 随机浮动 */
.popup-ad-container {
    position: fixed;
    z-index: var(--z-modal);
    pointer-events: auto;
}

.popup-ad-item {
    animation: popupFadeIn 0.3s ease;
}

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

.popup-ad-card {
    position: relative;
    background: var(--bg-card, #fff);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    width: 220px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.popup-ad-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
}

.popup-ad-close {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border: none;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background 0.3s ease;
}

.popup-ad-close:hover {
    background: rgba(0, 0, 0, 0.7);
}

.popup-ad-close svg {
    color: var(--bg-card, #fff);
}

.popup-ad-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.popup-ad-image {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

.popup-ad-title {
    padding: 10px 12px 4px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary, #333);
    line-height: 1.4;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.popup-ad-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
}

.popup-ad-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s ease;
}

.popup-ad-dot.active {
    background: var(--bg-card, #fff);
}

/* 弹窗广告响应式 */
@media (max-width: 768px) {
    .popup-ad-container {
        bottom: 16px;
        right: 16px;
        left: 16px;
    }
    
    .popup-ad-card {
        width: 100%;
        max-width: 240px;
    }
    
    .popup-ad-image {
        height: 100px;
    }
}