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

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

        /* Navigation */
        nav {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 1.5rem 5%;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .nav-container {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .back-link {
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: transform 0.3s ease;
        }

        .back-link:hover {
            transform: translateX(-5px);
        }

        /* Hero Section */
        .feature-hero {
            padding: 120px 5% 60px;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            text-align: center;
        }

        .feature-icon-large {
            font-size: 5rem;
            margin-bottom: 20px;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }

        .feature-hero h1 {
            font-size: 3rem;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .feature-hero p {
            font-size: 1.3rem;
            color: #4a5568;
            max-width: 800px;
            margin: 0 auto;
        }

        /* Content Section */
        .content-section {
            max-width: 1200px;
            margin: 80px auto;
            padding: 0 5%;
        }

        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            margin-bottom: 60px;
        }

        .content-block h2 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: #1a1a1a;
        }

        .content-block p {
            color: #555;
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .feature-list {
            list-style: none;
            padding: 0;
        }

        .feature-list li {
            padding: 12px 0;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: #555;
        }

        .feature-list li::before {
            content: "✓";
            color: white;
            background: #667eea;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            flex-shrink: 0;
        }

        /* Stats Section */
        .stats-section {
            background: white;
            padding: 60px 5%;
            margin: 60px 0;
            border-radius: 16px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            text-align: center;
        }

        .stat-item {
            padding: 20px;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 700;
            color: #667eea;
            margin-bottom: 10px;
        }

        .stat-label {
            font-size: 1.1rem;
            color: #666;
        }

        /* Technical Details */
        .tech-details {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 60px 5%;
            border-radius: 16px;
            margin: 60px 0;
        }

        .tech-details h2 {
            font-size: 2.5rem;
            margin-bottom: 30px;
            text-align: center;
        }

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

        .tech-card {
            background: rgba(255, 255, 255, 0.1);
            padding: 30px;
            border-radius: 12px;
            backdrop-filter: blur(10px);
        }

        .tech-card h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
        }

        .tech-card p {
            opacity: 0.9;
            line-height: 1.8;
        }

        /* CTA Section */
        .cta-section {
            text-align: center;
            padding: 80px 5%;
            background: white;
            margin: 60px 0;
            border-radius: 16px;
        }

        .cta-section h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #1a1a1a;
        }

        .cta-button {
            display: inline-block;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 15px 40px;
            border-radius: 30px;
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            margin-top: 20px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
        }

        /* Footer */
        footer {
            background: #1a1a1a;
            color: white;
            padding: 40px 5%;
            text-align: center;
        }

        footer p {
            color: #ccc;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .feature-hero h1 {
                font-size: 2rem;
            }

            .stats-grid, .tech-grid {
                grid-template-columns: 1fr;
            }
        }