* {
            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: #f8f9fa;
        }

        .e5yv1o-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .e5yv1o-header {
            background: linear-gradient(135deg, #25d366, #128c7e);
            color: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .e5yv1o-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .e5yv1o-logo {
            display: flex;
            align-items: center;
            font-size: 1.5rem;
            font-weight: bold;
        }

        .e5yv1o-logo img {
            height: 40px;
            margin-right: 10px;
        }

        .e5yv1o-nav-menu {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .e5yv1o-nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: opacity 0.3s ease;
            padding: 0.5rem 0;
        }

        .e5yv1o-nav-link:hover {
            opacity: 0.8;
            text-decoration: underline;
        }

        .e5yv1o-hero {
            background: linear-gradient(135deg, #25d366, #128c7e);
            color: white;
            padding: 4rem 0;
            text-align: center;
        }

        .e5yv1o-hero-title {
            font-size: 3rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }

        .e5yv1o-hero-subtitle {
            font-size: 1.3rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .e5yv1o-cta-button {
            display: inline-block;
            background: white;
            color: #25d366;
            padding: 1rem 2rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .e5yv1o-cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }

        .e5yv1o-main {
            padding: 4rem 0;
        }

        .e5yv1o-section {
            margin-bottom: 4rem;
        }

        .e5yv1o-section-title {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: #25d366;
            text-align: center;
        }

        .e5yv1o-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .e5yv1o-feature-card {
            background: white;
            padding: 2rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .e5yv1o-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
        }

        .e5yv1o-feature-icon {
            font-size: 3rem;
            color: #25d366;
            margin-bottom: 1rem;
        }

        .e5yv1o-feature-title {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #333;
        }

        .e5yv1o-feature-desc {
            color: #666;
            line-height: 1.6;
        }

        .e5yv1o-steps {
            background: white;
            padding: 3rem;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        }

        .e5yv1o-step {
            display: flex;
            align-items: center;
            margin-bottom: 2rem;
            padding: 1.5rem;
            background: #f8f9fa;
            border-radius: 10px;
            border-left: 4px solid #25d366;
        }

        .e5yv1o-step-number {
            background: #25d366;
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            margin-right: 1rem;
            flex-shrink: 0;
        }

        .e5yv1o-step-content h3 {
            color: #333;
            margin-bottom: 0.5rem;
        }

        .e5yv1o-step-content p {
            color: #666;
        }

        .e5yv1o-compatibility {
            background: linear-gradient(135deg, #f8f9fa, #e9ecef);
            padding: 3rem;
            border-radius: 15px;
            text-align: center;
        }

        .e5yv1o-browser-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .e5yv1o-browser-item {
            background: white;
            padding: 1.5rem;
            border-radius: 10px;
            box-shadow: 0 3px 10px rgba(0,0,0,0.1);
        }

        .e5yv1o-browser-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .e5yv1o-cta-section {
            background: linear-gradient(135deg, #25d366, #128c7e);
            color: white;
            padding: 4rem 0;
            text-align: center;
            margin-top: 4rem;
        }

        .e5yv1o-cta-title {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }

        .e5yv1o-cta-desc {
            font-size: 1.2rem;
            margin-bottom: 2rem;
            opacity: 0.9;
        }

        .e5yv1o-footer {
            background: #333;
            color: white;
            padding: 3rem 0 1rem;
            text-align: center;
        }

        .e5yv1o-footer-content {
            margin-bottom: 2rem;
        }

        .e5yv1o-footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .e5yv1o-footer-link {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .e5yv1o-footer-link:hover {
            color: #25d366;
        }

        .e5yv1o-copyright {
            border-top: 1px solid #555;
            padding-top: 1rem;
            color: #999;
        }

        @media (max-width: 768px) {
            .e5yv1o-hero-title {
                font-size: 2rem;
            }

            .e5yv1o-hero-subtitle {
                font-size: 1.1rem;
            }

            .e5yv1o-nav-menu {
                gap: 1rem;
            }

            .e5yv1o-section-title {
                font-size: 2rem;
            }

            .e5yv1o-step {
                flex-direction: column;
                text-align: center;
            }

            .e5yv1o-step-number {
                margin-right: 0;
                margin-bottom: 1rem;
            }
        }