body { font-family: 'Segoe UI', Arial, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; background: #FF6B35; color: white; padding: 10px; text-align: center; cursor: pointer; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
        }
        nav { background: #FF6B35; padding: 15px; margin-bottom: 20px; }
        nav a { color: white; text-decoration: none; margin: 0 15px; font-weight: bold; }
        h1 { color: #E63946; border-bottom: 3px solid #FFD166; padding-bottom: 10px; }
        h2 { color: #457B9D; margin-top: 30px; }
        h3 { color: #1D3557; }
        .btn { display: inline-block; background: #457B9D; color: white; padding: 10px 20px; margin: 10px 0; text-decoration: none; border-radius: 5px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .download-section, .login-section { background: #F1FAEE; padding: 20px; border-radius: 8px; margin: 20px 0; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        .tag { background: #E63946; color: white; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }