* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .header-top {
            background: #1a3a5c;
            color: white;
            padding: 8px 0;
            font-size: 0.9rem;
        }

        .header-top .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .header-contact {
            display: flex;
            gap: 20px;
        }

        header {
            background: white;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 15px 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .logo-icon {
            background: #1a3a5c;
            color: white;
            width: 60px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.2rem;
        }

        .logo-text h1 {
            color: #1a3a5c;
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 2px;
        }

        .logo-text p {
            color: #666;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        /* Navigation */
        .nav-main {
            background: #1a3a5c;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
        }

        .nav-links {
            display: flex;
            list-style: none;
        }

        .nav-links li {
            position: relative;
        }

        .nav-links a {
            color: white;
            text-decoration: none;
            padding: 15px 25px;
            display: block;
            text-transform: uppercase;
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.5px;
            transition: background-color 0.3s;
        }

        .nav-links a:hover,
        .nav-links a.active {
            background: #f39c12;
        }

        .nav-cta {
            background: #f39c12;
            color: white !important;
            font-weight: bold;
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(rgba(26, 58, 92, 0.8), rgba(26, 58, 92, 0.8)), 
                        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><rect fill="%23ddd" width="1200" height="600"/><rect fill="%23ccc" x="0" y="0" width="400" height="300"/><rect fill="%23bbb" x="400" y="100" width="800" height="400"/><rect fill="%23aaa" x="200" y="200" width="600" height="200"/></svg>');
            background-size: cover;
            background-position: center;
            height: 500px;
            display: flex;
            align-items: center;
            color: white;
        }

        .hero-content {
            max-width: 600px;
        }

        .hero-content h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        .hero-content p {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 2rem;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: bold;
            color: #f39c12;
        }

        .stat-label {
            font-size: 0.9rem;
            opacity: 0.8;
        }

        /* Main Content */
        .main-content {
            display: grid;
            grid-template-columns: 250px 1fr;
            gap: 30px;
            padding: 40px 0;
            max-width: 1200px;
            margin: 0 auto;
        }

        /* Sidebar */
        .sidebar {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            height: fit-content;
            overflow: hidden;
        }

        .sidebar-header {
            background: #f39c12;
            color: white;
            padding: 15px 20px;
            font-weight: bold;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 1px;
        }

        .sidebar-menu {
            list-style: none;
        }

        .sidebar-menu li {
            border-bottom: 1px solid #eee;
        }

        .sidebar-menu a {
            display: block;
            padding: 12px 20px;
            color: #333;
            text-decoration: none;
            transition: all 0.3s;
        }

        .sidebar-menu a:hover,
        .sidebar-menu a.active {
            background: #f8f9fa;
            color: #1a3a5c;
            border-left: 4px solid #f39c12;
        }

        /* Content Area */
        .content-area {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            overflow: hidden;
        }

        .content-header {
            background: #f8f9fa;
            padding: 25px 30px;
            border-bottom: 1px solid #eee;
        }

        .content-header h1 {
            color: #1a3a5c;
            font-size: 2.2rem;
            font-weight: 300;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }

        .content-body {
            padding: 30px;
        }

        .content-description {
            font-size: 1.1rem;
            color: #666;
            line-height: 1.8;
            margin-bottom: 40px;
        }

        /* Technical Info Section */
        .tech-info {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 25px;
            margin-bottom: 30px;
        }

        .tech-info h2 {
            color: #1a3a5c;
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .tech-subtitle {
            color: #666;
            font-size: 1rem;
            font-weight: normal;
            text-transform: none;
            letter-spacing: normal;
            margin-bottom: 20px;
        }

        .tech-description {
            color: #666;
            line-height: 1.6;
            margin-bottom: 20px;
        }

        /* Product Grid */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 30px;
        }

        .product-card {
            background: white;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .product-card:hover {
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            transform: translateY(-2px);
        }

        .product-image {
            height: 200px;
            background: linear-gradient(135deg, #1a3a5c 0%, #2c5aa0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
        }

        .product-details {
            padding: 20px;
        }

        .product-details h3 {
            color: #1a3a5c;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .product-details p {
            color: #666;
            font-size: 0.9rem;
            line-height: 1.5;
            margin-bottom: 15px;
        }

        .product-price {
            font-size: 1.1rem;
            font-weight: bold;
            color: #f39c12;
        }

        /* Right Sidebar */
        .right-sidebar {
            background: white;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            height: fit-content;
            overflow: hidden;
            margin-top: 30px;
        }

        .right-sidebar-header {
            background: #1a3a5c;
            color: white;
            padding: 15px 20px;
            font-weight: bold;
            font-size: 1.1rem;
        }

        .right-sidebar-content {
            padding: 20px;
        }

        .contact-info {
            margin-bottom: 20px;
        }

        .contact-info h4 {
            color: #1a3a5c;
            margin-bottom: 10px;
        }

        .contact-info p {
            color: #666;
            font-size: 0.9rem;
            line-height: 1.5;
        }

        /* Footer */
        footer {
            background: #1a3a5c;
            color: white;
            padding: 50px 0 20px;
            margin-top: 60px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-section h3 {
            color: #f39c12;
            margin-bottom: 15px;
            font-size: 1.1rem;
            text-transform: uppercase;
            font-weight: 600;
        }

        .footer-section p,
        .footer-section a {
            color: #ccc;
            text-decoration: none;
            line-height: 1.6;
            font-size: 0.9rem;
        }

        .footer-section a:hover {
            color: #f39c12;
        }

        .footer-bottom {
            border-top: 1px solid #2c5aa0;
            padding-top: 20px;
            text-align: center;
            color: #ccc;
            font-size: 0.9rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .main-content {
                grid-template-columns: 1fr;
                padding: 20px;
            }
            
            .hero-content h1 {
                font-size: 2rem;
            }
            
            .hero-stats {
                flex-direction: column;
                gap: 15px;
            }
            
            .nav-links {
                flex-direction: column;
            }
            
            .header-main {
                flex-direction: column;
                gap: 15px;
            }
        }