body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; }
        .container { max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #FF6B35; margin-bottom: 20px; }
        nav { background: #FF6B35; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        nav a { color: white; text-decoration: none; margin: 0 10px; }
        .mobile-menu { display: none; }
        h1 { color: #1E3A8A; margin-bottom: 20px; }
        h2 { color: #2563EB; margin: 25px 0 15px; }
        h3 { color: #3B82F6; margin: 20px 0 10px; }
        .download-btn, .login-btn { display: inline-block; padding: 10px 20px; background: #10B981; color: white; border-radius: 5px; text-decoration: none; margin: 10px 0; }
        .download-btn:hover, .login-btn:hover { background: #059669; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        footer { background: #1E3A8A; color: white; padding: 20px; text-align: center; }
        .tag { display: inline-block; background: #3B82F6; color: white; padding: 5px 10px; margin: 5px; border-radius: 3px; }
        @media (max-width: 768px) {
            nav { flex-direction: column; }
            .mobile-menu { display: block; background: white; color: #FF6B35; border: none; padding: 10px; margin-bottom: 10px; }
            .nav-links { display: none; }
            .nav-links.active { display: block; }
        }