/* ========================================
   新闻列表页样式
   ======================================== */

.news-list-section {
    padding: 100px 0;
}

.news-filter-bar {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 25px;
    font-size: 14px;
    color: var(--text-gray);
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.news-list-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.news-list-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s ease;
}

.news-list-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(13, 37, 56, 0.1);
}

.news-list-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.news-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.news-list-card:hover .news-list-image img {
    transform: scale(1.1);
}

.news-list-content {
    padding: 30px;
}

.news-list-date {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--sky-blue);
    margin-bottom: 15px;
}

.news-list-title {
    font-size: 18px;
    color: var(--deep-blue);
    margin-bottom: 15px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-list-excerpt {
    font-size: 14px;
    color: var(--text-gray);
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 20px;
}

.news-list-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--sky-blue);
    font-weight: 600;
}

.news-list-more::after {
    content: '→';
    transition: transform 0.3s ease;
}

.news-list-card:hover .news-list-more::after {
    transform: translateX(5px);
}

/* 响应式 */
@media (max-width: 992px) {
    .news-list-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .news-list-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   新闻详情页样式
   ======================================== */

.news-detail-section {
    padding: 100px 0;
}

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

.news-detail-header {
    margin-bottom: 40px;
}

.news-detail-category {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(74, 163, 223, 0.1);
    color: var(--sky-blue);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.news-detail-title {
    font-size: 36px;
    color: var(--deep-blue);
    line-height: 1.4;
    margin-bottom: 25px;
}

.news-detail-meta {
    display: flex;
    gap: 30px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
}

.news-detail-date,
.news-detail-views {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-gray);
}

.news-detail-cover {
    width: 100%;
    height: 450px;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 40px;
}

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

.news-detail-content {
    font-size: 16px;
    line-height: 2;
    color: var(--text-dark);
}

.news-detail-content p {
    margin-bottom: 25px;
}

.news-detail-content img {
    max-width: 100%;
    border-radius: 15px;
    margin: 30px 0;
}

/* 相关新闻 */
.related-news {
    margin-top: 60px;
    padding-top: 50px;
    border-top: 1px solid var(--border-color);
}

.related-news h3 {
    font-size: 24px;
    color: var(--deep-blue);
    margin-bottom: 30px;
}

.related-news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.related-news-card {
    background: var(--ice-white);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.related-news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(13, 37, 56, 0.08);
}

.related-news-title {
    font-size: 16px;
    color: var(--deep-blue);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

/* 响应式 */
@media (max-width: 768px) {
    .news-detail-title {
        font-size: 28px;
    }
    
    .news-detail-cover {
        height: 250px;
    }
    
    .news-detail-meta {
        flex-direction: column;
        gap: 15px;
    }
    
    .related-news-grid {
        grid-template-columns: 1fr;
    }
}