.article {
    padding: 40px 0;
}

.article-header {
    background: #fff;
    padding: 50px;
    border-radius: 10px;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.article-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #999;
}

.article-meta i {
    margin-right: 5px;
}

.article-title {
    font-size: 36px;
    color: #2c3e50;
    line-height: 1.4;
    margin-bottom: 30px;
}

.article-cover {
    border-radius: 8px;
    overflow: hidden;
}

.article-cover img {
    width: 100%;
    height: auto;
    display: block;
}

.article-content {
    background: #fff;
    padding: 50px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.lead {
    font-size: 18px;
    color: #555;
    line-height: 1.8;
    padding: 20px 30px;
    background: #f8f9fa;
    border-left: 4px solid #3498db;
    margin-bottom: 30px;
}

.article-content h2 {
    font-size: 28px;
    color: #2c3e50;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
}

.article-content h3 {
    font-size: 22px;
    color: #34495e;
    margin: 30px 0 15px;
}

.article-content h4 {
    font-size: 18px;
    color: #34495e;
    margin: 20px 0 10px;
}

.article-content p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.8;
    color: #444;
}

.article-content strong {
    color: #2c3e50;
    font-weight: 600;
}

.article-content ul {
    margin: 20px 0;
    padding-left: 30px;
}

.article-content li {
    margin-bottom: 10px;
    line-height: 1.8;
}

.image-block {
    margin: 30px 0;
    text-align: center;
}

.image-block img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.image-block .caption {
    margin-top: 10px;
    font-size: 14px;
    color: #999;
    font-style: italic;
}

.case-study {
    background: #f8f9fa;
    padding: 25px 30px;
    border-radius: 8px;
    margin: 25px 0;
    border-left: 4px solid #27ae60;
}

.case-study h4 {
    color: #27ae60;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 18px;
}

.case-study p {
    margin-bottom: 0;
    font-style: italic;
    color: #555;
}

.data-section {
    display: flex;
    gap: 20px;
    margin: 30px 0;
}

.data-card {
    flex: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 30px 20px;
    border-radius: 8px;
    text-align: center;
}

.data-number {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 10px;
}

.data-label {
    font-size: 14px;
    opacity: 0.9;
}

.highlight-box {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: #fff;
    padding: 30px;
    border-radius: 8px;
    margin: 40px 0;
}

.highlight-box h4 {
    color: #fff;
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 15px;
}

.highlight-box p {
    color: #fff;
    margin-bottom: 15px;
}

.highlight-box p:last-child {
    margin-bottom: 0;
}

.warning-box {
    background: #fff3cd;
    border: 2px solid #ffc107;
    padding: 30px;
    border-radius: 8px;
    margin: 40px 0;
}

.warning-box h4 {
    color: #856404;
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.warning-box > p {
    color: #856404;
    margin-bottom: 20px;
    font-size: 16px;
}

.comparison {
    display: flex;
    gap: 20px;
    margin: 25px 0;
}

.comparison-item {
    flex: 1;
    padding: 20px;
    border-radius: 8px;
}

.comparison-item.wrong {
    background: #ffebee;
    border: 2px solid #ef5350;
}

.comparison-item.right {
    background: #e8f5e9;
    border: 2px solid #66bb6a;
}

.comparison-item h5 {
    font-size: 18px;
    margin: 0 0 15px 0;
    color: #2c3e50;
}

.comparison-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-item li {
    padding: 8px 0;
    color: #555;
    font-size: 15px;
    line-height: 1.6;
}

.comparison-item.wrong li {
    color: #c62828;
}

.comparison-item.right li {
    color: #2e7d32;
}

.warning-highlight {
    background: #fff;
    padding: 15px 20px;
    border-radius: 6px;
    margin-top: 20px;
    border-left: 4px solid #ff9800;
    color: #e65100;
    font-size: 15px;
    line-height: 1.8;
}

.article-footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #eee;
}

.tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.tag {
    background: #e8f4f8;
    color: #3498db;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
}

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

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #f5f5f5;
    border-radius: 50%;
    color: #666;
    text-decoration: none;
    transition: all 0.3s;
}

.share-btn:hover {
    background: #3498db;
    color: #fff;
}

@media (max-width: 768px) {
    .article-header {
        padding: 30px 20px;
    }
    
    .article-title {
        font-size: 28px;
    }
    
    .article-content {
        padding: 30px 20px;
    }
    
    .article-meta {
        flex-wrap: wrap;
    }
    
    .data-section {
        flex-direction: column;
    }
    
    .data-number {
        font-size: 32px;
    }
}