/* 折叠按钮和菜单样式 */
.admin-category-btn.fold-btn {
    background-color: #ef4444;
    border-color: #dc2626;
    color: white;
    position: relative;
}

.admin-category-btn.fold-btn:hover {
    background-color: #dc2626;
    border-color: #b91c1c;
}

.fold-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 0.6rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 100;
    min-width: 150px;
    margin-top: 0.5rem;
    padding: 0.5rem 0;
}

.fold-menu-item {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.7rem 1rem;
    background: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    font-weight: 500;
    color: #475569;
}

.fold-menu-item:hover {
    background-color: #f8fafc;
}

.fold-menu-item.active {
    background-color: #e0f2fe;
    color: #0284c7;
}