/* ============================================
   资讯模块样式
   ============================================ */

/* 页面头部 */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #FFF5F5 0%, #FFF9E6 50%, #E6FFF5 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.page-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* 资讯区域 */
.news-section {
    padding: 60px 0;
    background: var(--bg-secondary);
    min-height: 60vh;
}

/* 分类标签 */
.news-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 24px;
    border: 2px solid var(--bg-secondary);
    background: white;
    border-radius: 50px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

/* 资讯列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.news-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: white;
    border-radius: var(--radius-md);
    padding: 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.news-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
}

.news-meta {
    display: flex;
    gap: 20px;
    font-size: 0.875rem;
    color: var(--text-light);
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
}

.page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--bg-secondary);
    background: white;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.page-btn:hover:not(.disabled):not(.active) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.page-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-ellipsis {
    padding: 0 8px;
    color: var(--text-light);
}

/* 加载状态 */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bg-secondary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 16px;
}

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

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

/* ============================================
   文章详情页
   ============================================ */

.article-detail {
    padding: 100px 0 60px;
    background: var(--bg-secondary);
    min-height: 100vh;
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 32px;
    font-size: 0.875rem;
}

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

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

.breadcrumb span {
    color: var(--text-light);
}

.breadcrumb span:last-child {
    color: var(--text-primary);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 文章内容 */
.article-content {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.article-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--bg-secondary);
}

.article-header h1 {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 16px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.article-meta .category {
    padding: 4px 12px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-weight: 500;
}

.article-meta .category-product { background: var(--primary-color); }
.article-meta .category-education { background: var(--secondary-color); }
.article-meta .category-cantonese { background: var(--accent-orange); }

/* 文章正文 */
.article-body {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.article-body h2 {
    font-size: 1.375rem;
    font-weight: 700;
    margin: 32px 0 16px;
    color: var(--text-primary);
}

.article-body p {
    margin-bottom: 16px;
}

.article-body img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 24px 0;
}

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

.article-body li {
    margin-bottom: 8px;
}

/* 文章底部 */
.article-footer {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--bg-secondary);
}

.article-nav {
    display: flex;
    justify-content: flex-start;
}

.back-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: 50px;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

/* 错误状态 */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
    text-align: center;
}

.error-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.error-state p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.back-link {
    display: inline-block;
    padding: 12px 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 50px;
    font-weight: 500;
}

.back-link:hover {
    background: var(--primary-dark);
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 768px) {
    .page-header {
        padding: 100px 0 40px;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .news-tabs {
        gap: 8px;
    }

    .tab-btn {
        padding: 8px 16px;
        font-size: 0.875rem;
    }

    .news-item {
        flex-direction: column;
    }

    .news-cover {
        width: 100%;
        min-width: 100%;
        height: 180px;
    }

    .news-content {
        padding: 16px;
    }

    .article-content {
        padding: 24px;
    }

    .article-header h1 {
        font-size: 1.5rem;
    }

    .article-meta {
        flex-wrap: wrap;
        gap: 12px;
    }

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

    .pagination {
        flex-wrap: wrap;
    }
}