body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #0077cc; text-align: center; }
        h2 { color: #005599; border-bottom: 2px solid #eee; padding-bottom: 5px; }
        h3 { color: #003366; }
        .logo { font-size: 28px; font-weight: bold; color: #ff6600; text-shadow: 1px 1px 2px #ccc; }
        .mobile-nav { display: none; background: #0077cc; color: white; padding: 10px; text-align: center; cursor: pointer; }
        nav { background: #0077cc; padding: 15px; margin-bottom: 20px; }
        nav a { color: white; margin: 0 15px; text-decoration: none; font-weight: bold; }
        .download-btn, .login-btn { display: inline-block; background: #ff6600; color: white; padding: 10px 20px; margin: 10px 0; border-radius: 5px; text-decoration: none; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tags a { background: #eee; padding: 5px 10px; margin: 0 5px; text-decoration: none; border-radius: 3px; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 30px; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; }
            nav { padding: 10px; }
            nav a { display: block; margin: 5px 0; }
        }