/* Main Layout - Two Columns */
        .main-layout {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px 80px;
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 3rem;
            align-items: start;
        }

        /* Left Column - Product List */
        .left-column {
            min-width: 0;
        }

        .page-title {
            font-size: 2rem;
            color: var(--primary-color);
            margin-bottom: 2rem;
            font-weight: 700;
        }

        .product-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .product-item {
            background: var(--white);
            border-radius: 12px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .product-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .product-link {
            display: flex;
            text-decoration: none;
            color: inherit;
        }

        .product-link:hover .product-item-name {
            color: var(--secondary-color);
        }

        .product-item-image {
            width: 220px;
            min-width: 220px;
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }

        .product-item-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

        .product-link:hover .product-item-image img {
            transform: scale(1.05);
        }

        .product-image-placeholder {
            color: #a0aec0;
            font-size: 0.85rem;
            font-weight: 500;
        }

        .product-item-info {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
        }

        .product-item-name {
            font-size: 1.2rem;
            color: var(--primary-color);
            margin-bottom: 0.75rem;
            font-weight: 600;
            transition: color 0.3s ease;
            line-height: 1.3;
        }

        .product-item-desc {
            color: #718096;
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .product-item-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 1rem;
            flex-wrap: wrap;
        }

        .product-item-sku {
            font-size: 0.8rem;
            color: #a0aec0;
            font-family: monospace;
            background: var(--light-bg);
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }

        .product-item-badge {
            display: inline-block;
            padding: 0.2rem 0.6rem;
            background-color: #c6f6d5;
            color: #276749;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 4px;
            text-transform: uppercase;
            letter-spacing: 0.3px;
        }

        /* Right Column - Sticky Sidebar */
        .right-column {
            position: sticky;
            top: 90px;
            align-self: start;
        }

        .sidebar-section {
            background: var(--white);
            border-radius: 12px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-color);
            padding: 1.5rem;
            margin-bottom: 2rem;
        }

        .sidebar-title {
            font-size: 1.15rem;
            color: var(--primary-color);
            margin-bottom: 1.25rem;
            font-weight: 600;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid var(--border-color);
        }

        .sidebar-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .sidebar-item {
            display: flex;
            gap: 0.75rem;
            text-decoration: none;
            color: inherit;
            padding: 0.5rem 0;
            border-bottom: 1px solid #edf2f7;
            transition: transform 0.2s ease;
        }

        .sidebar-item:last-child {
            border-bottom: none;
        }

        .sidebar-item:hover {
            transform: translateX(4px);
        }

        .sidebar-item:hover .sidebar-item-title {
            color: var(--secondary-color);
        }

        .sidebar-thumb {
            width: 60px;
            height: 60px;
            min-width: 60px;
            background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e0 100%);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: #a0aec0;
            overflow: hidden;
        }

        .sidebar-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 8px;
        }

        .sidebar-item-info {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .sidebar-item-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-color);
            line-height: 1.4;
            transition: color 0.3s ease;
        }

        .sidebar-item-desc {
            font-size: 0.8rem;
            color: #a0aec0;
            margin-top: 0.25rem;
            line-height: 1.4;
        }

        /* Article sidebar items */
        .sidebar-article {
            display: block;
            text-decoration: none;
            color: inherit;
            padding: 0.75rem 0;
            border-bottom: 1px solid #edf2f7;
            transition: transform 0.2s ease;
        }

        .sidebar-article:last-child {
            border-bottom: none;
        }

        .sidebar-article:hover {
            transform: translateX(4px);
        }

        .sidebar-article:hover .sidebar-article-title {
            color: var(--secondary-color);
        }

        .sidebar-article-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-color);
            line-height: 1.4;
            transition: color 0.3s ease;
        }

        .sidebar-article-excerpt {
            font-size: 0.8rem;
            color: #a0aec0;
            margin-top: 0.35rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* Responsive Design */
        @media (max-width: 992px) {
            .main-layout {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .right-column {
                position: static;
                order: -1;
            }

            .sidebar-section {
                margin-bottom: 1.5rem;
            }
        }

        @media (max-width: 768px) {


            .page-title {
                font-size: 1.6rem;
            }

            .product-link {
                flex-direction: column;
            }

            .product-item-image {
                width: 100%;
                height: 200px;
            }

            .product-item-info {
                padding: 1.25rem;
            }

            .product-item-name {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 480px) {


            .main-layout {
                padding: 0 15px 50px;
            }

            .product-item-image {
                height: 160px;
            }

            .product-item-info {
                padding: 1rem;
            }

            .product-item-name {
                font-size: 1rem;
            }
        }