.rankvn-toc {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 16px;
    margin: 20px 0;
    max-width: 100%;
}

.rankvn-toc__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 8px;
    margin-bottom: 12px;
}

.rankvn-toc__title {
    font-size: 16px;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
}

.rankvn-toc__toggle {
    font-size: 12px;
    background: #e2e8f0;
    border: none;
    border-radius: 4px;
    padding: 4px 8px;
    color: #475569;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.rankvn-toc__toggle:hover {
    background: #cbd5e1;
    color: #1e293b;
}

.rankvn-toc__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.rankvn-toc__item {
    margin-bottom: 8px;
    line-height: 1.4;
}

.rankvn-toc__link {
    color: #2563eb;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.rankvn-toc__link:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

.rankvn-toc__sublist {
    list-style: none;
    margin: 4px 0 4px 16px;
    padding: 0;
}

.rankvn-toc__item--level-3 .rankvn-toc__link {
    font-size: 13.5px;
    color: #475569;
}

.rankvn-toc__item--level-4 .rankvn-toc__link {
    font-size: 13px;
    color: #64748b;
}