.content-main {
    padding: 2rem 0 4rem;
    background: var(--background);
}

.content-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.breadcrumb {
    margin-bottom: 2rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.breadcrumb a:hover {
    color: var(--primary-dark);
}

.breadcrumb-separator {
    margin: 0 0.5rem;
    color: var(--text-light);
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

.content-article {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.article-header {
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid var(--border-light);
    background: var(--background-secondary);
}

.article-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.article-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.article-category {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.article-date,
.article-read-time {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.article-content {
    padding: 2rem;
    line-height: 1.7;
}

.lead-paragraph {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--background-accent);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--border-radius);
}

.article-content h2 {
    font-size: 1.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem 0;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
}

.article-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2rem 0 1rem 0;
}

.article-content h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 1.5rem 0 0.75rem 0;
}

.article-content p {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.article-content ul,
.article-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.article-content ul ul,
.article-content ol ul,
.article-content ul ol,
.article-content ol ol {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.article-content ul ul li,
.article-content ol ul li,
.article-content ul ol li,
.article-content ol ol li {
    margin-bottom: 0.25rem;
}

.training-table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    background: var(--background);
    box-shadow: var(--shadow);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.training-table th,
.training-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.training-table th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.training-table tbody tr:hover {
    background: var(--background-secondary);
}

.training-table tbody tr:last-child td {
    border-bottom: none;
}

.training-table td:first-child {
    font-weight: 600;
    color: var(--primary-color);
}

.definition-list {
    margin: 2rem 0;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1rem 2rem;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    background: var(--background-secondary);
}

.definition-list dt {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
    align-self: start;
}

.definition-list dd {
    color: var(--text-primary);
    margin: 0;
    line-height: 1.6;
}

.article-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.article-content em {
    font-style: italic;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .content-container {
        padding: 0 1rem;
    }
    
    .article-header {
        padding: 1.5rem 1.5rem 1rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-content {
        padding: 1.5rem;
    }
    
    .article-content h2 {
        font-size: 1.5rem;
        margin: 2rem 0 1rem 0;
    }
    
    .article-content h3 {
        font-size: 1.25rem;
        margin: 1.5rem 0 0.75rem 0;
    }
    
    .training-table {
        font-size: 0.875rem;
    }
    
    .training-table th,
    .training-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .definition-list {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .definition-list dt {
        margin-top: 1rem;
    }
    
    .definition-list dt:first-child {
        margin-top: 0;
    }
}

@media (max-width: 480px) {
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .training-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .training-table th,
    .training-table td {
        padding: 0.5rem;
        font-size: 0.8rem;
    }
}