body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #e67e22; margin-top: 30px; }
        h1 { font-size: 2.5em; border-bottom: 3px solid #e67e22; }
        h2 { font-size: 2em; }
        h3 { font-size: 1.5em; }
        .logo { font-size: 2em; font-weight: bold; color: #e67e22; text-decoration: none; }
        .nav { display: flex; justify-content: space-between; background: #f8f8f8; padding: 15px; margin-bottom: 20px; }
        .mobile-nav-btn { display: none; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .mobile-nav-btn { display: block; margin-bottom: 10px; }
            .nav-links { display: none; }
            .nav-links.active { display: block; }
        }
        .download-btn, .login-btn { background: #e67e22; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; margin: 10px 0; display: inline-block; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #f0f0f0; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 3px; }
        footer { margin-top: 40px; padding: 20px; background: #f8f8f8; }