* {
            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;
        }

        .l7wf-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .l7wf-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .l7wf-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
        }

        .l7wf-logo {
            display: flex;
            align-items: center;
            color: white;
            text-decoration: none;
            font-size: 1.5rem;
            font-weight: bold;
        }

        .l7wf-logo img {
            height: 40px;
            margin-right: 10px;
        }

        .l7wf-nav-menu {
            display: flex;
            gap: 2rem;
            list-style: none;
        }

        .l7wf-nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 5px;
        }

        .l7wf-nav-link:hover {
            background-color: rgba(255,255,255,0.2);
            transform: translateY(-2px);
        }

        .l7wf-hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 0;
            text-align: center;
        }

        .l7wf-hero-title {
            font-size: 3rem;
            font-weight: bold;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .l7wf-hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .l7wf-hero-cta {
            display: inline-block;
            background: #ff6b6b;
            color: white;
            padding: 1rem 2rem;
            text-decoration: none;
            border-radius: 50px;
            font-weight: bold;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(255,107,107,0.4);
        }

        .l7wf-hero-cta:hover {
            background: #ff5252;
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(255,107,107,0.6);
        }

        .l7wf-main {
            padding: 4rem 0;
        }

        .l7wf-section {
            margin-bottom: 4rem;
        }

        .l7wf-section-title {
            font-size: 2.5rem;
            text-align: center;
            margin-bottom: 3rem;
            color: #2c3e50;
            position: relative;
        }

        .l7wf-section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            border-radius: 2px;
        }

        .l7wf-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .l7wf-feature-card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            text-align: center;
        }

        .l7wf-feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0,0,0,0.15);
        }

        .l7wf-feature-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            color: #667eea;
        }

        .l7wf-feature-title {
            font-size: 1.5rem;
            font-weight: bold;
            margin-bottom: 1rem;
            color: #2c3e50;
        }

        .l7wf-feature-desc {
            color: #666;
            line-height: 1.8;
        }

        .l7wf-platform-info {
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            margin: 3rem 0;
        }

        .l7wf-platform-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .l7wf-platform-item {
            padding: 1.5rem;
            border: 2px solid #e9ecef;
            border-radius: 10px;
            transition: all 0.3s ease;
        }

        .l7wf-platform-item:hover {
            border-color: #667eea;
            background: #f8f9ff;
        }

        .l7wf-platform-name {
            font-size: 1.2rem;
            font-weight: bold;
            color: #2c3e50;
            margin-bottom: 0.5rem;
        }

        .l7wf-platform-version {
            color: #666;
            font-size: 0.9rem;
        }

        .l7wf-download-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 0;
            text-align: center;
            border-radius: 20px;
            margin: 3rem 0;
        }

        .l7wf-download-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .l7wf-download-desc {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .l7wf-download-buttons {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .l7wf-download-btn {
            display: inline-block;
            background: white;
            color: #667eea;
            padding: 1rem 2rem;
            text-decoration: none;
            border-radius: 10px;
            font-weight: bold;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .l7wf-download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }

        .l7wf-content-text {
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            margin: 3rem 0;
            line-height: 1.8;
            color: #555;
        }

        .l7wf-highlight {
            color: #667eea;
            font-weight: bold;
        }

        .l7wf-footer {
            background: #2c3e50;
            color: white;
            padding: 3rem 0 2rem;
            text-align: center;
        }

        .l7wf-footer-content {
            margin-bottom: 2rem;
        }

        .l7wf-footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .l7wf-footer-link {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .l7wf-footer-link:hover {
            color: white;
        }

        .l7wf-copyright {
            color: #95a5a6;
            font-size: 0.9rem;
            border-top: 1px solid #34495e;
            padding-top: 1rem;
        }

        @media (max-width: 768px) {
            .l7wf-nav-menu {
                display: none;
            }

            .l7wf-hero-title {
                font-size: 2rem;
            }

            .l7wf-hero-subtitle {
                font-size: 1.1rem;
            }

            .l7wf-section-title {
                font-size: 2rem;
            }

            .l7wf-features-grid {
                grid-template-columns: 1fr;
            }

            .l7wf-platform-grid {
                grid-template-columns: 1fr;
            }

            .l7wf-download-buttons {
                flex-direction: column;
                align-items: center;
            }

            .l7wf-footer-links {
                flex-direction: column;
                gap: 1rem;
            }
        }