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: #FF6B35; text-align: center; margin: 20px 0; }
        nav { background: #2C3E50; color: white; padding: 10px; display: flex; justify-content: space-around; }
        nav a { color: white; text-decoration: none; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; text-align: center; margin: 10px 0; }
            .mobile-menu { background: #2C3E50; color: white; padding: 10px; cursor: pointer; }
        }
        h1 { color: #FF6B35; border-bottom: 2px solid #FF6B35; }
        h2 { color: #3498DB; }
        h3 { color: #2ECC71; }
        .download-btn { display: block; background: #FF6B35; color: white; text-align: center; padding: 15px; margin: 20px 0; border-radius: 5px; text-decoration: none; }
        .login-btn { display: block; background: #3498DB; color: white; text-align: center; padding: 15px; margin: 20px 0; border-radius: 5px; text-decoration: none; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tags a { background: #ECF0F1; padding: 5px 10px; margin: 0 5px; border-radius: 3px; text-decoration: none; }
        footer { background: #2C3E50; color: white; padding: 20px; text-align: center; margin-top: 30px; }