mujoco

<div class="group-section">
    {% for child in child_sections %}
    <details class="group-item" open
        style="margin-bottom: 1rem; border: 1px solid var(--border-color); border-radius: 4px; padding: 1rem;">
        <summary style="font-size: 1.2rem; font-weight: 600; margin-bottom: 0.5rem; border-bottom: none;">
            {{ child.title }}
        </summary>
        <div class="group-content">
            {{ child.content | safe }}
        </div>
    </details>
    {% endfor %}
</div>