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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #f9f9f9;
        }

        .fv7n6r-header {
            background-color: #fff;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .fv7n6r-header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 15px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .fv7n6r-logo {
            display: flex;
            align-items: center;
            font-size: 20px;
            font-weight: 700;
            color: #0088cc;
            text-decoration: none;
        }

        .fv7n6r-logo img {
            height: 40px;
            margin-right: 12px;
        }

        .fv7n6r-nav {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .fv7n6r-nav-link {
            color: #333;
            text-decoration: none;
            font-size: 15px;
            transition: color 0.3s ease;
            font-weight: 500;
        }

        .fv7n6r-nav-link:hover {
            color: #0088cc;
        }

        .fv7n6r-hero {
            background: linear-gradient(135deg, #0088cc 0%, #00d4ff 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
        }

        .fv7n6r-hero-content {
            max-width: 1200px;
            margin: 0 auto;
        }

        .fv7n6r-hero h1 {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .fv7n6r-hero-subtitle {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.95;
            line-height: 1.5;
        }

        .fv7n6r-cta-group {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 30px;
        }

        .fv7n6r-btn-primary {
            background-color: #fff;
            color: #0088cc;
            padding: 14px 40px;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .fv7n6r-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }

        .fv7n6r-btn-secondary {
            background-color: transparent;
            color: #fff;
            padding: 14px 40px;
            border: 2px solid #fff;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .fv7n6r-btn-secondary:hover {
            background-color: #fff;
            color: #0088cc;
        }

        .fv7n6r-features {
            max-width: 1200px;
            margin: 60px auto;
            padding: 0 20px;
        }

        .fv7n6r-features-title {
            text-align: center;
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 50px;
            color: #333;
        }

        .fv7n6r-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .fv7n6r-feature-card {
            background: #fff;
            padding: 30px;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .fv7n6r-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.12);
        }

        .fv7n6r-feature-icon {
            font-size: 40px;
            margin-bottom: 15px;
        }

        .fv7n6r-feature-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 12px;
            color: #0088cc;
        }

        .fv7n6r-feature-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.7;
        }

        .fv7n6r-platform-section {
            background-color: #fff;
            padding: 60px 20px;
            margin: 40px 0;
        }

        .fv7n6r-platform-inner {
            max-width: 1200px;
            margin: 0 auto;
        }

        .fv7n6r-section-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 30px;
            color: #333;
        }

        .fv7n6r-platform-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .fv7n6r-platform-box {
            background: linear-gradient(135deg, #f5f7fa 0%, #fff 100%);
            padding: 30px;
            border-radius: 8px;
            border: 1px solid #e8e8e8;
            text-align: center;
        }

        .fv7n6r-platform-name {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #0088cc;
        }

        .fv7n6r-platform-specs {
            font-size: 13px;
            color: #666;
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .fv7n6r-platform-specs strong {
            color: #333;
            display: block;
            margin-bottom: 5px;
        }

        .fv7n6r-download-btn {
            background-color: #0088cc;
            color: white;
            padding: 10px 25px;
            border: none;
            border-radius: 5px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease;
            text-decoration: none;
            display: inline-block;
        }

        .fv7n6r-download-btn:hover {
            background-color: #006ba8;
        }

        .fv7n6r-install-section {
            background-color: #f0f4f8;
            padding: 60px 20px;
        }

        .fv7n6r-install-inner {
            max-width: 1200px;
            margin: 0 auto;
        }

        .fv7n6r-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .fv7n6r-step {
            background: white;
            padding: 25px;
            border-radius: 8px;
            border-left: 4px solid #0088cc;
        }

        .fv7n6r-step-num {
            background-color: #0088cc;
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 15px;
        }

        .fv7n6r-step-title {
            font-size: 18px;
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
        }

        .fv7n6r-step-content {
            font-size: 14px;
            color: #666;
            line-height: 1.7;
        }

        .fv7n6r-compatibility {
            background: white;
            padding: 60px 20px;
        }

        .fv7n6r-compatibility-inner {
            max-width: 1200px;
            margin: 0 auto;
        }

        .fv7n6r-compat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .fv7n6r-compat-item {
            background-color: #f9f9f9;
            padding: 20px;
            border-radius: 6px;
            border: 1px solid #e8e8e8;
            text-align: center;
        }

        .fv7n6r-compat-icon {
            font-size: 32px;
            margin-bottom: 10px;
        }

        .fv7n6r-compat-text {
            font-size: 14px;
            color: #333;
            font-weight: 500;
        }

        .fv7n6r-compat-version {
            font-size: 12px;
            color: #999;
            margin-top: 8px;
        }

        .fv7n6r-cta-section {
            background: linear-gradient(135deg, #0088cc 0%, #00d4ff 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
        }

        .fv7n6r-cta-section-inner {
            max-width: 800px;
            margin: 0 auto;
        }

        .fv7n6r-cta-title {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .fv7n6r-cta-desc {
            font-size: 16px;
            margin-bottom: 30px;
            opacity: 0.95;
            line-height: 1.6;
        }

        .fv7n6r-footer {
            background-color: #1a1a1a;
            color: #aaa;
            padding: 50px 20px 30px;
        }

        .fv7n6r-footer-inner {
            max-width: 1200px;
            margin: 0 auto;
        }

        .fv7n6r-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        .fv7n6r-footer-section h3 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .fv7n6r-footer-section ul {
            list-style: none;
        }

        .fv7n6r-footer-section li {
            margin-bottom: 10px;
        }

        .fv7n6r-footer-section a {
            color: #aaa;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .fv7n6r-footer-section a:hover {
            color: #0088cc;
        }

        .fv7n6r-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 30px;
            text-align: center;
            font-size: 13px;
            color: #666;
        }

        .fv7n6r-highlight {
            color: #0088cc;
            font-weight: 600;
        }

        @media (max-width: 768px) {
            .fv7n6r-hero h1 {
                font-size: 32px;
            }

            .fv7n6r-hero-subtitle {
                font-size: 16px;
            }

            .fv7n6r-cta-group {
                flex-direction: column;
                align-items: center;
            }

            .fv7n6r-btn-primary,
            .fv7n6r-btn-secondary {
                width: 100%;
                max-width: 300px;
            }

            .fv7n6r-features-title {
                font-size: 28px;
            }

            .fv7n6r-section-title {
                font-size: 24px;
            }

            .fv7n6r-cta-title {
                font-size: 28px;
            }

            .fv7n6r-nav {
                gap: 15px;
                font-size: 13px;
            }

            .fv7n6r-header-inner {
                flex-direction: column;
                gap: 15px;
            }

            .fv7n6r-nav {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        @media (max-width: 480px) {
            .fv7n6r-hero {
                padding: 50px 15px;
            }

            .fv7n6r-hero h1 {
                font-size: 24px;
            }

            .fv7n6r-features-grid,
            .fv7n6r-platform-grid,
            .fv7n6r-steps,
            .fv7n6r-compat-grid {
                grid-template-columns: 1fr;
            }

            .fv7n6r-nav-link {
                font-size: 12px;
            }
        }