body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #FF9900; text-align: center; margin: 20px 0; }
        nav { background: #FF9900; padding: 10px; display: flex; justify-content: space-around; flex-wrap: wrap; }
        nav a { color: white; text-decoration: none; padding: 5px 10px; }
        .mobile-menu { display: none; background: #FF9900; color: white; padding: 10px; text-align: center; cursor: pointer; }
        h1 { color: #2C3E50; margin-top: 30px; }
        h2 { color: #E67E22; margin-top: 25px; }
        h3 { color: #3498DB; margin-top: 20px; }
        img { max-width: 100%; height: auto; margin: 15px 0; }
        .download-btn { background: #2ECC71; color: white; padding: 12px 25px; text-align: center; display: inline-block; margin: 15px 0; border-radius: 5px; }
        .login-btn { background: #3498DB; color: white; padding: 12px 25px; text-align: center; display: inline-block; margin: 15px 0; border-radius: 5px; }
        .tag { background: #F1C40F; color: white; padding: 3px 8px; margin: 3px; display: inline-block; border-radius: 3px; }
        footer { margin-top: 40px; padding: 20px; background: #2C3E50; color: white; }
        @media (max-width: 768px) {
            nav { display: none; }
            .mobile-menu { display: block; }
            .show-nav { display: flex; flex-direction: column; }
        }