/* 学习与支持页面样式 */

.support-main {
    padding-top: 100px;
    min-height: 100vh;
    background: #f8f9fa;
}

/* 页面标题 */
.page-header {
    text-align: center;
    padding: 60px 0 40px;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
}

.page-subtitle {
    font-size: 18px;
    color: #666;
    font-weight: 400;
}

/* 新闻网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 40px 0 80px;
}

/* 新闻卡片 */
.news-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* 新闻图片 */
.news-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: #f0f0f0;
}

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

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

/* 新闻内容 */
.news-content {
    padding: 24px;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-description {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 新闻元信息 */
.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid #f0f0f0;
}

.news-date {
    font-size: 13px;
    color: #999;
}

.news-link {
    font-size: 14px;
    color: #06a17e;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.news-link:hover {
    color: #048a6a;
}

/* 导航栏激活状态 */
.nav-link.active {
    color: #06a17e;
}

.nav-link.active::after {
    width: 100%;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .page-title {
        font-size: 32px;
    }
    
    .page-subtitle {
        font-size: 16px;
    }
    
    .news-image {
        height: 200px;
    }
}