/* Products Section */
        .products-section {
            padding: 30px 0;
            background-color: #f9f9f9;
        }

        .products-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 5px;
        }

        .product-item {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.2s, box-shadow 0.2s, border 0.2s;
            border: 2px solid transparent; 
            cursor: pointer; 
            text-decoration: none;
            color: inherit;
            display: block;
        }

        .product-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
            border-color: var(--accent-color);
        }

        .product-image {
            position: relative;
            width: 100%;
            padding-top: 75%;
            /* 4:3 Aspect Ratio */
            background-color: #f5f5f5;
            overflow: hidden;
        }

        .product-image img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .product-content {
            padding: 20px;
        }

        .product-name {
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--primary-color);
        }

        .product-description {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        .second-row {
            display: none;
        }

        .products-grid.expanded .second-row {
            display: block;
        }

        .expand-btn {
            display: block;
            margin: 40px auto 0;
            padding: 12px 30px;
            background-color: var(--secondary-color);
            color: white;
            border: none;
            border-radius: 4px;
            font-size: 1em;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .expand-btn:hover {
            background-color: #2980b9;
        }

        /* Advantages Section */
        .advantages {
            padding: 30px 0;
            background-color: white;
        }

        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .advantage-item {
            text-align: center;
            padding: 30px 20px;
            border-radius: 8px;
            background-color: #f9f9f9;
            transition: transform 0.3s;
        }

        .advantage-item:hover {
            transform: translateY(-5px);
        }

        .advantage-icon {
            font-size: 3rem;
            color: var(--secondary-color);
            margin-bottom: 20px;
        }

        .advantage-title {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--primary-color);
        }

        /* gallery 主区域 */
        .gallery-section {
            padding: 50px 0 70px;
        }

        .section-intro {
            text-align: center;
            max-width: 850px;
            margin: 0 auto 45px;
        }

        .section-intro p {
            font-size: 1.05rem;
            color: #2c3e50;
        }

        .gallery-grid {
            display: grid;
            gap: 3px;
            grid-template-columns: repeat(4, minmax(240px, 1fr));
            }

        /* 卡片样式：与原产品卡片风格呼应 */
        .gallery-card {
            background: var(--gallery-card-bg);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .gallery-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
        }

        /* 图片容器 + 响应式图片降级处理 */
        .card-image {
            position: relative;
            background-color: #eef2f5;
            overflow: hidden;
            aspect-ratio: 10 / 7;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform 0.4s ease;
        }

        .gallery-card:hover .card-image img {
            transform: scale(1.02);
        }

        /* 图片描述区域 */
        .card-content {
            padding: 20px 18px 24px;
            border-top: 3px solid var(--accent-color);
        }

        .card-tag {
            display: inline-block;
            background: var(--secondary-color);
            color: white;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .card-content h3 {
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--primary-color);
            font-weight: 600;
        }

        .card-content p {
            font-size: 0.9rem;
            color: #4a5568;
            line-height: 1.5;
            margin-bottom: 15px;
        }

        /* 折叠卡片样式（初始隐藏第二屏及以后的卡片） */
        .gallery-card.hidden-card {
            display: none;
        }

        /* 查看更多按钮容器 */
        .expand-btn-wrapper {
            text-align: center;
            margin-top: 45px;
        }

        /* Global Customers Section - UPDATED */
        .global-customers {
            padding: 30px 0;
            background-color: white;
        }

        .customers-container {
            display: flex;
            gap: 40px;
            align-items: center;
        }

        .customers-slider {
            flex: 1;
            position: relative;
            overflow: hidden;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }

        .slider-container {
            position: relative;
            width: 100%;
            padding-top: 75%;
            /* 4:3 Aspect Ratio */
            overflow: hidden;
        }

        .slider-track {
            position: absolute;
            top: 0;
            left: 0;
            width: 600%;
            /* Updated for 6 slides */
            height: 100%;
            display: flex;
            transition: transform 0.3s ease;
        }

        .slide {
            width: 16.666%;
            /* Updated for 6 slides (100/6) */
            position: relative;
        }

        .slide-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .slide-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 10px;
            text-align: center;
            font-size: 0.9em;
        }

        .slider-dots {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 15px;
        }

        .slider-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: #ccc;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .slider-dot.active {
            background-color: var(--secondary-color);
        }

        .customers-info {
            flex: 1;
            text-align: left;
        }

        .customers-title {
            font-size: 2.2rem;
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .customers-subtitle {
            font-size: 1.2rem;
            color: var(--secondary-color);
            font-weight: 500;
            margin-bottom: 25px;
        }

        .customers-text {
            color: #666;
            line-height: 1.7;
            margin-bottom: 25px;
        }

        /* Applications Section */
        .applications {
            padding: 30px 0;
            background-color: #f9f9f9;
        }

        .applications-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }

        .application-item {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .application-image {
            position: relative;
            width: 100%;
            padding-top: 75%;
            overflow: hidden;
        }

        .application-image img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .application-name {
            padding: 15px;
            text-align: center;
            font-weight: 600;
            color: var(--primary-color);
        }

        /* Testimonials */
        .testimonials {
            padding: 60px 0;
            background-color: white;
        }

        .testimonials-container {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .testimonial-item {
            background-color: #f9f9f9;
            padding: 30px;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }

        .testimonial-text {
            font-style: italic;
            margin-bottom: 20px;
            position: relative;
        }

        .testimonial-text::before {
            content: '"';
            font-size: 3rem;
            color: var(--secondary-color);
            position: absolute;
            top: -15px;
            left: -10px;
            opacity: 0.3;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
        }

        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            overflow: hidden;
            margin-right: 15px;
        }

        .author-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .author-info h4 {
            margin-bottom: 5px;
            color: var(--primary-color);
        }

        .author-info p {
            color: #666;
            font-size: 0.9rem;
        }

        /* Blog Section */
        .blog {
            padding: 30px 0;
            background-color: #f9f9f9;
        }

        .blog-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .blog-item {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .blog-image {
            position: relative;
            width: 100%;
            padding-top: 60%;
            overflow: hidden;
        }

        .blog-image img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .blog-content {
            padding: 20px;
        }

        .blog-date {
            color: #666;
            font-size: 0.8rem;
            margin-bottom: 10px;
        }

        .blog-title {
            font-size: 1.2rem;
            margin-bottom: 10px;
            color: var(--primary-color);
        }

        .blog-excerpt {
            color: #666;
            font-size: 0.9rem;
            margin-bottom: 15px;
        }

        /* Final CTA */
        .final-cta {
            padding: 80px 0;
            background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.9));
            color: white;
            text-align: center;
        }

        .final-cta h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .final-cta p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }


        /* Responsive Design */
        @media (max-width: 1200px) {
            .container {
                max-width: 99%;
            }
        }

        @media (max-width: 992px) {
            
            .products-section {
                padding: 10px 0;
                background-color: #f9f9f9;
            }

            .products-grid {
                gap: 3px;
            }

            .product-name {
                font-size: 0.95rem;
            }

            .advantages-grid,
            .testimonials-container,
            .blog-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .products-grid,
            .gallery-grid,
            .applications-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            /* Global Customers - Stack on tablet */
            .customers-container {
                flex-direction: column;
            }

            .customers-slider{
                 width: 60%;
            }

            .customers-info {
                width: 100%;
                text-align: center;
            }
        }

        @media (max-width: 768px) {
            
            .advantages-grid,
            .testimonials-container,
            .blog-grid {
                grid-template-columns: 1fr;
            }

            .products-grid,
            .gallery-grid,
            .applications-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .section-title {
                font-size: 1.8rem;
            }

            .gallery-section {
                padding: 35px 0 50px;
            }
            .card-content h3 {
                font-size: 1.1rem;
            }

            .customers-slider{
                 width: 65%;
            }

            /* Global Customers - Adjust title size */
            .customers-title {
                font-size: 2em;
            }

            .blog-item {
                width: 86%;
                height: auto;
                margin: 0 auto;
            }
        }

        @media (max-width: 576px) {
        
            .customers-slider {
                width: 86%;
            }

            .applications-grid,.gallery-grid {
                grid-template-columns: 1fr;
            }

            .gallery-card,.application-item {
                width: 86%;
                height: auto;
                margin: 0 auto;
            }
        }