/* 页面头部 */
.page-header {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    padding: 60px 20px;
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
}

/* 列表容器 */
.list-container {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 30px;
    padding: 20px 20px;
    max-width: 1280px;
    margin: 0 auto;
}

/* 筛选工具栏 */
.filter-bar {
    background: #f7fafc;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

.filter-group label {
    font-weight: 600;
    color: #2d3748;
    font-size: 14px;
}

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

.filter-tag {
    background: #fff;
    border: 1px solid #e2e8f0;
    color: #4a5568;
    padding: 6px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
}

.filter-tag:hover {
    border-color: #667eea;
    color: #667eea;
}

.filter-tag.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    border-color: transparent;
}

.sort-select {
    padding: 8px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #fff;
    color: #4a5568;
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.3s;
}

.sort-select:focus {
    outline: none;
    border-color: #667eea;
}

/* 新闻列表 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-list-item {
    display: flex;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    cursor: pointer;
}

.news-list-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

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

.news-list-item.large .news-image {
    height: 400px;
}

.news-image {
    width: 280px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.news-list-item.large .news-image {
    width: 100%;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.news-image .category-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.news-info {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-title a {
    color: #2d3748;
    text-decoration: none;
    transition: color 0.3s;
}

.news-title a:hover {
    color: #667eea;
}

.news-summary {
    font-size: 14px;
    color: #718096;
    line-height: 1.6;
    margin-bottom: 15px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    gap: 15px;
    font-size: 13px;
    color: #a0aec0;
}

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

.meta-item .icon {
    font-size: 14px;
}

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

.page-btn {
    min-width: 40px;
    height: 40px;
    padding: 0 15px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    color: #4a5568;
    transition: all 0.3s;
}

.page-btn:hover:not(:disabled) {
    border-color: #667eea;
    color: #667eea;
}

.page-btn.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    border-color: transparent;
}

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

.page-ellipsis {
    padding: 0 5px;
    color: #a0aec0;
}

/* 列表侧边栏 */
.list-sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 热门排行卡片 */
.hot-rank-card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.hot-rank-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.rank-item {
    display: flex;
    gap: 12px;
    padding: 10px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s;
}

.rank-item:hover {
    background: #f7fafc;
    transform: translateX(5px);
}

.rank-num {
    width: 28px;
    height: 28px;
    background: #e2e8f0;
    color: #718096;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.rank-num.top1 {
    background: linear-gradient(135deg, #ffd700, #ffaa00);
    color: #fff;
}

.rank-num.top2 {
    background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
    color: #fff;
}

.rank-num.top3 {
    background: linear-gradient(135deg, #cd7f32, #b87333);
    color: #fff;
}

.rank-info {
    flex: 1;
}

.rank-info h4 {
    font-size: 14px;
    color: #2d3748;
    margin-bottom: 5px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.rank-meta {
    font-size: 12px;
    color: #a0aec0;
}

/* 标签云卡片 */
.tags-card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag-item {
    background: #edf2f7;
    color: #667eea;
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 13px;
    text-decoration: none;
    transition: all 0.3s;
}

.tag-item:hover {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    transform: scale(1.05);
}

/* 推荐阅读卡片 */
.recommend-card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

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

.recommend-item {
    display: flex;
    gap: 12px;
    text-decoration: none;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s;
}

.recommend-item:hover {
    background: #f7fafc;
}

.recommend-item img {
    width: 80px;
    height: 60px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
}

.recommend-item h4 {
    flex: 1;
    font-size: 13px;
    color: #2d3748;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.recommend-meta {
    font-size: 12px;
    color: #a0aec0;
}

/* 统计数据卡片 */
.stats-card {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.stats-card h3 {
    color: #fff;
    margin-bottom: 15px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.stat-box {
    background: rgba(255, 255, 255, 0.15);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 12px;
    opacity: 0.9;
}

/* 订阅卡片 */
.subscribe-card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.subscribe-form {
    display: flex;
    gap: 10px;
}

.subscribe-input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.subscribe-input:focus {
    outline: none;
    border-color: #667eea;
}

.subscribe-btn {
    padding: 10px 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

.subscribe-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* 响应式 */
@media (max-width: 1024px) {
    .list-container {
        grid-template-columns: 1fr;
    }

    .list-sidebar {
        order: 2;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 40px 20px;
    }

    .page-header h1 {
        font-size: 28px;
    }

    .page-header p {
        font-size: 16px;
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group {
        flex-wrap: wrap;
    }

    .filter-tags {
        flex-wrap: wrap;
    }

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

    .news-list-item.large .news-image,
    .news-image {
        width: 100%;
        height: 200px;
    }

    .news-title {
        font-size: 16px;
    }

    .news-meta {
        flex-wrap: wrap;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .subscribe-form {
        flex-direction: column;
    }
}