/* Mobile Navigation Styles */
        @media (max-width: 992px) {
            .banner-content h2 {
                font-size: 2.5rem;
            }

            .banner-content p {
                font-size: 1.2rem;
            }

            .about-content {
                flex-direction: column;
            }
                       .news-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
                        .main-image-container {
                height: 350px;
            }
            
            .specs-grid {
                grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            }
        }

        @media (max-width: 900px) {
            .mobile-toggle {
                display: flex;
            }

            nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 320px;
                height: 100vh;
                z-index: 1000;
                overflow-y: auto;
                padding-top: 80px;
                box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
            }

            nav.active {
                right: 0;
            }

            .main-nav {
                flex-direction: column;
                padding: 20px;
                width: 100%;
            }

            .main-nav>li {
                width: 100%;
            }

            .main-nav>li>a {
                padding: 15px 0;
                font-size: 1.1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            }

            .dropdown>a:after {
                content: "\f107";
                position: absolute;
                right: 0;
                color: white;
            }

            .dropdown-content {
                position: static;
                box-shadow: none;
                min-width: 100%;
                padding: 0;
                background-color: transparent;
                opacity: 0;
                visibility: visible;
                max-height: 0;
                transform: none;
                transition: max-height 0.3s ease;
            }

            .dropdown.active .dropdown-content {
                max-height: 1000px;
            }

            .dropdown-content li a {
                color: #eee;
                padding-left: 30px;
            }

            .submenu-trigger:after {
                color: #eee !important;
            }

            .dropdown-content li a:hover {
                background-color: rgba(255, 255, 255, 0.1);
            }

            /* Three-level menu for mobile */
            .submenu-trigger:after {
                transform: translateY(-50%) rotate(90deg);
            }

            .dropdown-submenu.active .submenu-level3 {
                max-height: 1000px;

            }

            .dropdown-submenu>.submenu-level3 {
                position: static;
                box-shadow: none;
                list-style-type: none;
                background-color: rgba(0, 0, 0, 0.1);
                padding-left: 20px;
                min-width: auto;
                left: auto;
                top: auto;
            }

            .nav-overlay {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background-color: rgba(0, 0, 0, 0.7);
                z-index: 999;
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s;
            }

            .nav-overlay.active {
                opacity: 1;
                visibility: visible;
            }
                       .section-title {
                font-size: 2rem;
            }
            
            .controls-section {
                padding: 25px 30px;
            }
            
            .news-content {
                padding: 30px;
            }
            
            .news-list .news-img {
                width: 220px;
                height: 180px;
            }
            
            .news-list .news-details {
                width: calc(100% - 220px);
            }
        }

        @media (max-width: 768px) {
            .top-bar-container {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }

            .contact-info {
                flex-direction: column;
                gap: 8px;
            }

            .banner-content h2 {
                font-size: 2rem;
            }

            .banner-content p {
                font-size: 1.1rem;
            }

            .banner-slider {
                height: 60vh;
            }

            .section-title h2 {
                font-size: 2rem;
            }

            .contact-container {
                grid-template-columns: 1fr;
            }

            .section {
                padding: 60px 0;
            }

            .search-wrapper {
                flex-direction: column;
            }

            .search-filter {
                border-right: none;
                border-bottom: 1px solid var(--border);
            }

            .search-filter select {
                width: 100%;
            }

            .lightbox-video {
                width: 95%;
            }
                        .controls-section {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .control-group {
                width: 100%;
                justify-content: space-between;
            }
            
            .news-list .news-item {
                flex-direction: column;
            }
            
            .news-list .news-img {
                width: 100%;
                height: 200px;
            }
            
            .news-list .news-details {
                width: 100%;
            }
                .product-main {
                flex-direction: column;
            }
            
            .main-image-container {
                height: 300px;
            }
            
            .product-title {
                font-size: 1.8rem;
            }
            
            .tab-btn {
                padding: 12px 20px;
                font-size: 0.95rem;
            }
            
            .inquiry-section {
                display: flex;
                flex-direction: column;
                gap: 15px;
            }
            
            .contact-btn {
                margin-left: 0;
            }
        }

        @media (max-width: 480px) {
            .logo h1 {
                font-size: 1.5rem;
            }

            .product-card,
            .service-card,
            .case-card {
                padding: 20px;
            }

            .view-details {
                width: 100%;
                text-align: center;
            }

            .banner-slider {
                height: 400px;
            }

            .banner-content .btn {
                display: block;
                margin: 10px auto;
                max-width: 250px;
                font-size: 1rem;
                padding: 12px 25px;
            }

            .lightbox-video {
                width: 100%;
                padding: 0 10px;
            }

            .banner-content h2 {
                font-size: 1.8rem;
            }

            .category-name h3 {
                font-size: 1.5rem;
            }

            .contact-form {
                padding: 25px;
            }
                .news-content {
                padding: 20px;
            }
                  .section-title {
                font-size: 1.8rem;
            }
                 .product-detail-container {
                padding: 15px;
            }
            
            .main-image-container {
                height: 250px;
            }
            
            .specs-grid {
                grid-template-columns: 1fr 1fr;
            }
            
            .products-grid {
                grid-template-columns: 1fr;
            }
            
            .breadcrumb {
                padding: 15px;
            }
        }