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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        .l8uo-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .l8uo-header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .l8uo-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 15px 0;
        }

        .l8uo-logo {
            height: 40px;
        }

        .l8uo-nav-menu {
            display: flex;
            gap: 30px;
        }

        .l8uo-nav-link {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .l8uo-nav-link:hover {
            color: #007bff;
        }

        .l8uo-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .l8uo-hero-title {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .l8uo-hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 40px;
            opacity: 0.9;
        }

        .l8uo-download-section {
            background: white;
            padding: 60px 0;
            margin: -40px 0 0 0;
            border-radius: 20px 20px 0 0;
            position: relative;
        }

        .l8uo-download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .l8uo-download-card {
            background: #fff;
            border: 2px solid #e9ecef;
            border-radius: 15px;
            padding: 30px;
            text-align: center;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(0,0,0,0.08);
        }

        .l8uo-download-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 35px rgba(0,0,0,0.15);
            border-color: #007bff;
        }

        .l8uo-platform-icon {
            font-size: 3rem;
            margin-bottom: 20px;
            color: #007bff;
        }

        .l8uo-platform-name {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: #333;
        }

        .l8uo-version-info {
            color: #666;
            margin-bottom: 10px;
            font-size: 0.9rem;
        }

        .l8uo-file-size {
            color: #888;
            font-size: 0.85rem;
            margin-bottom: 20px;
        }

        .l8uo-download-btn {
            background: linear-gradient(45deg, #007bff, #0056b3);
            color: white;
            border: none;
            padding: 15px 30px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            width: 100%;
        }

        .l8uo-download-btn:hover {
            background: linear-gradient(45deg, #0056b3, #004085);
            transform: scale(1.05);
            box-shadow: 0 8px 25px rgba(0,123,255,0.3);
        }

        .l8uo-features-section {
            padding: 80px 0;
            background: #f8f9fa;
        }

        .l8uo-section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: #333;
        }

        .l8uo-section-subtitle {
            text-align: center;
            font-size: 1.2rem;
            color: #666;
            margin-bottom: 50px;
        }

        .l8uo-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }

        .l8uo-feature-card {
            background: white;
            padding: 40px 30px;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 5px 20px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
        }

        .l8uo-feature-card:hover {
            transform: translateY(-5px);
        }

        .l8uo-feature-icon {
            font-size: 3rem;
            color: #007bff;
            margin-bottom: 20px;
        }

        .l8uo-feature-title {
            font-size: 1.4rem;
            font-weight: 600;
            margin-bottom: 15px;
            color: #333;
        }

        .l8uo-feature-desc {
            color: #666;
            line-height: 1.6;
        }

        .l8uo-system-requirements {
            background: white;
            padding: 60px 0;
        }

        .l8uo-requirements-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .l8uo-requirement-card {
            background: #f8f9fa;
            padding: 30px;
            border-radius: 10px;
            border-left: 4px solid #007bff;
        }

        .l8uo-requirement-title {
            font-weight: 600;
            margin-bottom: 15px;
            color: #333;
        }

        .l8uo-requirement-list {
            list-style: none;
        }

        .l8uo-requirement-list li {
            padding: 5px 0;
            color: #666;
        }

        .l8uo-requirement-list li:before {
            content: "✓";
            color: #28a745;
            font-weight: bold;
            margin-right: 10px;
        }

        .l8uo-cta-section {
            background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
            color: white;
            padding: 80px 0;
            text-align: center;
        }

        .l8uo-cta-title {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .l8uo-cta-desc {
            font-size: 1.2rem;
            margin-bottom: 40px;
            opacity: 0.9;
        }

        .l8uo-cta-btn {
            background: white;
            color: #28a745;
            border: none;
            padding: 20px 40px;
            border-radius: 50px;
            font-size: 1.3rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .l8uo-cta-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 10px 30px rgba(255,255,255,0.3);
        }

        .l8uo-footer {
            background: #333;
            color: white;
            padding: 50px 0 30px;
        }

        .l8uo-footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }

        .l8uo-footer-section h3 {
            margin-bottom: 20px;
            color: #fff;
        }

        .l8uo-footer-section ul {
            list-style: none;
        }

        .l8uo-footer-section ul li {
            margin-bottom: 10px;
        }

        .l8uo-footer-section ul li a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .l8uo-footer-section ul li a:hover {
            color: #007bff;
        }

        .l8uo-footer-bottom {
            border-top: 1px solid #555;
            padding-top: 20px;
            text-align: center;
            color: #ccc;
        }

        @media (max-width: 768px) {
            .l8uo-hero-title {
                font-size: 2rem;
            }

            .l8uo-nav-menu {
                display: none;
            }

            .l8uo-download-grid {
                grid-template-columns: 1fr;
            }

            .l8uo-section-title {
                font-size: 2rem;
            }
        }