/* ===== 公司新闻页面样式 ===== */

/* ===== 新闻分类筛选区 ===== */
.news-filter-section {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-white);
}

.filter-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.filter-header h2 {
    font-size: var(--font-size-h2);
    color: var(--color-dark);
    font-weight: var(--font-weight-bold);
    margin: 0;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.filter-btn {
    padding: 12px 24px;
    border: 2px solid var(--color-light);
    border-radius: var(--radius-lg);
    background: var(--color-white);
    color: var(--color-gray);
    font-size: 15px;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-primary);
    z-index: -1;
    transition: left var(--transition-base);
}

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

.filter-btn:hover::before {
    left: 0;
}

.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3);
}

.filter-btn.active::before {
    left: 0;
}

/* ===== 新闻列表与侧边栏布局 ===== */
.news-section {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: linear-gradient(180deg, var(--color-white) 0%, #f8fbff 100%);
}

.news-wrapper {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-4xl);
}

/* ===== 新闻列表 ===== */
.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3xl);
}

.news-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 102, 204, 0.08);
    transition: all var(--transition-base);
    display: grid;
    grid-template-columns: 280px 1fr;
    animation: fadeInUp 0.8s ease-out both;
    opacity: 0;
}

.news-card.show {
    opacity: 1;
}

.news-card:nth-child(1) { animation-delay: 0.1s; }
.news-card:nth-child(2) { animation-delay: 0.2s; }
.news-card:nth-child(3) { animation-delay: 0.3s; }
.news-card:nth-child(4) { animation-delay: 0.4s; }
.news-card:nth-child(5) { animation-delay: 0.5s; }
.news-card:nth-child(6) { animation-delay: 0.6s; }
.news-card:nth-child(7) { animation-delay: 0.7s; }
.news-card:nth-child(8) { animation-delay: 0.8s; }
.news-card:nth-child(9) { animation-delay: 0.9s; }

.news-card:hover {
    box-shadow: 0 20px 60px rgba(0, 102, 204, 0.2);
    transform: translateY(-8px);
}

.news-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--color-light);
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.news-card:hover .news-image img {
    transform: scale(1.08);
}

.news-tag {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    padding: 6px 12px;
    border-radius: var(--radius-base);
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    z-index: 10;
    letter-spacing: 0.5px;
}

.company-tag {
    background: linear-gradient(135deg, #FF6B35, #FF8A50);
}

.product-tag {
    background: linear-gradient(135deg, #00B4D8, #00D9FF);
}

.industry-tag {
    background: linear-gradient(135deg, #667EEA, #764BA2);
}

.insight-tag {
    background: linear-gradient(135deg, #F093FB, #F5576C);
}

.news-content {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.news-card h3 {
    font-size: 20px;
    color: var(--color-dark);
    margin: 0 0 var(--spacing-lg) 0;
    font-weight: var(--font-weight-bold);
    line-height: 1.4;
    transition: color var(--transition-base);
}

.news-card:hover h3 {
    color: var(--color-primary);
}

.news-meta {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    font-size: 13px;
    color: var(--color-gray);
}

.news-date,
.news-author {
    display: flex;
    align-items: center;
}

.news-excerpt {
    font-size: 15px;
    color: var(--color-gray);
    line-height: 1.6;
    margin: 0 0 var(--spacing-lg) 0;
    flex-grow: 1;
}

.read-more {
    display: inline-block;
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: all var(--transition-base);
    font-size: 14px;
}

.read-more:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* ===== 分页 ===== */
.news-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-3xl);
}

.pagination-pages {
    display: flex;
    gap: var(--spacing-base);
}

.pagination-btn,
.page-btn {
    padding: 10px 18px;
    border-radius: var(--radius-base);
    border: 1px solid var(--color-light);
    background: var(--color-white);
    color: var(--color-dark);
    font-size: 14px;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
}

.pagination-btn:hover,
.page-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.pagination-btn:disabled {
    cursor: not-allowed;
    color: var(--color-gray);
    background: #f2f4f7;
    border-color: #e2e6ea;
}

/* ===== 侧边栏 ===== */
.news-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.sidebar-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: 0 4px 20px rgba(0, 102, 204, 0.08);
    transition: all var(--transition-base);
}

.sidebar-card:hover {
    box-shadow: 0 12px 40px rgba(0, 102, 204, 0.15);
    transform: translateY(-4px);
}

.sidebar-card h4 {
    font-size: 18px;
    color: var(--color-dark);
    margin: 0 0 var(--spacing-2xl) 0;
    font-weight: var(--font-weight-bold);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-light);
}

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

.hot-news-list li {
    margin-bottom: var(--spacing-lg);
}

.hot-news-list li:last-child {
    margin-bottom: 0;
}

.hot-news-list a {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-base);
    text-decoration: none;
    transition: all var(--transition-base);
}

.hot-news-list a:hover {
    transform: translateX(4px);
}

.hot-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
    margin-top: 2px;
}

.hot-title {
    font-size: 14px;
    color: var(--color-dark);
    font-weight: var(--font-weight-semibold);
    line-height: 1.5;
    transition: color var(--transition-base);
}

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

.contact-info {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.8;
}

.contact-info p {
    margin-bottom: var(--spacing-lg);
}

.contact-info p:last-child {
    margin-bottom: 0;
}

.contact-info strong {
    display: block;
    color: var(--color-dark);
    font-weight: var(--font-weight-bold);
    margin-bottom: 4px;
}

.contact-info a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

.contact-info a:hover {
    color: var(--color-accent);
}

/* ===== 新闻内容页 ===== */
.news-detail-section {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-white);
}

.news-detail-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 40px rgba(0, 102, 204, 0.12);
    overflow: hidden;
}

.news-detail-header {
    padding: var(--spacing-3xl) var(--spacing-3xl) var(--spacing-2xl);
    border-bottom: 1px solid var(--color-light);
}

.news-detail-tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 14px;
    border-radius: var(--radius-base);
    color: var(--color-white);
    font-size: 12px;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-lg);
}

.news-detail-header h3 {
    font-size: 28px;
    color: var(--color-dark);
    margin: 0 0 var(--spacing-lg) 0;
    line-height: 1.4;
    font-weight: var(--font-weight-bold);
}

.news-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xl);
    font-size: 14px;
    color: var(--color-gray);
}

.news-detail-image {
    height: 420px;
    overflow: hidden;
    background: var(--color-light);
}

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

.news-detail-body {
    padding: var(--spacing-3xl);
    color: var(--color-gray);
    font-size: 16px;
    line-height: 1.9;
}

.news-detail-body p {
    margin: 0 0 var(--spacing-lg) 0;
}

.news-detail-body h4 {
    font-size: 20px;
    color: var(--color-dark);
    margin: var(--spacing-3xl) 0 var(--spacing-lg);
    font-weight: var(--font-weight-bold);
}

.news-detail-quote {
    margin: var(--spacing-2xl) 0;
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.08), rgba(0, 212, 255, 0.08));
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 16px;
    color: var(--color-dark);
}

.news-detail-list {
    margin: 0 0 var(--spacing-2xl) 0;
    padding-left: 20px;
}

.news-detail-list li {
    margin-bottom: var(--spacing-base);
}

.news-detail-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl) var(--spacing-3xl);
    border-top: 1px solid var(--color-light);
    background: #f9fbff;
}

.news-detail-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-base);
    font-size: 14px;
}

.tag-title {
    color: var(--color-gray);
}

.news-tag-link {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--color-light);
    color: var(--color-dark);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-base);
    font-size: 13px;
}

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

.news-detail-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-base);
}

.news-detail-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-3xl);
}

.news-detail-nav a {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-base);
    padding: var(--spacing-2xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.08);
    text-decoration: none;
    transition: all var(--transition-base);
}

.news-detail-nav a:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 102, 204, 0.16);
}

.nav-label {
    font-size: 12px;
    color: var(--color-gray);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.nav-title {
    font-size: 16px;
    color: var(--color-dark);
    font-weight: var(--font-weight-semibold);
    line-height: 1.5;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .news-wrapper {
        grid-template-columns: 1fr;
        gap: var(--spacing-3xl);
    }

    .news-card {
        grid-template-columns: 240px 1fr;
    }

    .news-image {
        height: 180px;
    }

    .filter-buttons {
        gap: var(--spacing-base);
    }

    .filter-btn {
        padding: 10px 18px;
        font-size: 14px;
    }

    .news-detail-image {
        height: 360px;
    }

    .news-detail-header {
        padding: var(--spacing-2xl);
    }

    .news-detail-body {
        padding: var(--spacing-2xl);
    }

    .news-detail-footer {
        padding: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .news-section {
        padding: var(--spacing-3xl) var(--spacing-base);
    }

    .news-filter-section {
        padding: var(--spacing-3xl) var(--spacing-base);
    }

    .news-wrapper {
        gap: var(--spacing-2xl);
    }

    .news-card {
        grid-template-columns: 1fr;
    }

    .news-image {
        height: 240px;
    }

    .news-content {
        padding: var(--spacing-lg);
    }

    .filter-header h2 {
        font-size: 24px;
    }

    .filter-buttons {
        flex-direction: column;
        gap: var(--spacing-base);
    }

    .filter-btn {
        width: 100%;
        padding: 12px 16px;
    }

    .news-card h3 {
        font-size: 18px;
    }

    .news-excerpt {
        font-size: 14px;
    }

    .news-pagination {
        flex-direction: column;
        gap: var(--spacing-base);
    }

    .sidebar-card {
        padding: var(--spacing-lg);
    }

    .sidebar-card h4 {
        font-size: 16px;
        margin-bottom: var(--spacing-lg);
    }

    .hot-news-list li {
        margin-bottom: var(--spacing-base);
    }

    .hot-tag {
        font-size: 10px;
        padding: 3px 6px;
    }

    .hot-title {
        font-size: 13px;
    }

    .contact-info {
        font-size: 13px;
    }

    .news-detail-section {
        padding: var(--spacing-3xl) var(--spacing-base);
    }

    .news-detail-header h3 {
        font-size: 22px;
    }

    .news-detail-meta {
        gap: var(--spacing-lg);
    }

    .news-detail-image {
        height: 260px;
    }

    .news-detail-body {
        font-size: 15px;
    }

    .news-detail-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .news-detail-nav {
        grid-template-columns: 1fr;
    }
}