body { font-family: 'Arial', sans-serif; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px; color: #333; }
        h1 { color: #d4af37; border-bottom: 2px solid #d4af37; padding-bottom: 10px; }
        h2 { color: #4a90e2; margin-top: 30px; }
        h3 { color: #e74c3c; }
        .logo { font-size: 2.5em; font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); }
        .nav { background: #f8f8f8; padding: 10px; position: sticky; top: 0; display: flex; justify-content: space-between; align-items: center; }
        .nav-mobile { display: none; }
        .btn { background: #4CAF50; color: white; padding: 8px 16px; border-radius: 4px; text-decoration: none; }
        .download-btn { background: #2196F3; margin-right: 10px; }
        .login-btn { background: #FF5722; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .footer { margin-top: 50px; padding: 20px; background: #333; color: white; text-align: center; }
        .tags { margin: 20px 0; }
        .tag { background: #eee; padding: 5px 10px; margin: 0 5px; border-radius: 20px; }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .nav-mobile { display: block; }
            .logo { font-size: 1.8em; }
        }