.pl-product-manuals {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.pl-product-manuals h1 {
    margin-bottom: 30px;
    font-size: 28px;
}

.pl-manuals-search {
    margin-bottom: 30px;
}

.pl-manuals-search input {
    width: 100%;
    max-width: 500px;
    padding: 12px 15px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin: 0 auto;
    display: block;
}

.pl-manuals-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pl-category-group {
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #fff;
    overflow: hidden;
    transition: box-shadow 0.3s;
}

.pl-category-group:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pl-category-group.hidden {
    display: none;
}

.pl-category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: #f8f9fa;
    cursor: pointer;
    user-select: none;
    border-bottom: 1px solid #ddd;
    transition: background-color 0.2s;
}

.pl-category-header:hover {
    background: #e9ecef;
}

.pl-category-title {
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.pl-category-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #666;
}

.pl-toggle-icon {
    font-size: 14px;
    transition: transform 0.2s;
}

.pl-manual-count {
    font-size: 14px;
    color: #666;
}

.pl-category-content {
    padding: 20px;
    display: block;
}

.pl-category-group.collapsed .pl-category-content {
    display: none;
}

.pl-category-group.collapsed .pl-toggle-icon {
    transform: rotate(-90deg);
}

.pl-manual-item {
    border: 1px solid #e9ecef;
    border-radius: 6px;
    padding: 15px;
    background: #f8f9fa;
    margin-bottom: 15px;
    transition: box-shadow 0.3s;
}

.pl-manual-item:last-child {
    margin-bottom: 0;
}

.pl-manual-item:hover {
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.pl-manual-item.hidden {
    display: none;
}

.pl-manual-header {
    margin-bottom: 12px;
}

.pl-manual-header h3 {
    margin: 0;
    font-size: 16px;
    color: #333;
    font-weight: 500;
}

.pl-manual-content {
    margin-top: 15px;
}

.pl-manual-pdf {
    text-align: center;
}

.pl-manual-youtube {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.pl-manual-youtube iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.pl-no-manuals {
    text-align: center;
    padding: 40px;
    color: #666;
    font-size: 16px;
}

.pl-manual-item.hidden {
    display: none;
}