body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; background: #0077ff; color: white; padding: 10px; text-align: center; cursor: pointer; }
        @media (max-width: 768px) { .desktop-nav { display: none; } .mobile-nav { display: block; } }
        .logo { font-size: 28px; font-weight: bold; color: #0077ff; margin-bottom: 20px; }
        nav a { margin: 0 15px; text-decoration: none; color: #0077ff; font-weight: 500; }
        h1 { color: #0055aa; margin-top: 30px; }
        h2 { color: #0066cc; border-bottom: 2px solid #eee; padding-bottom: 5px; }
        h3 { color: #0077dd; }
        .button { display: inline-block; background: #ff6600; color: white; padding: 10px 20px; margin: 10px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .highlight { background: #fffde7; padding: 5px; border-left: 4px solid #ffcc00; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin: 20px 0; }
        .tag { background: #e0e0e0; padding: 3px 8px; margin: 3px; display: inline-block; border-radius: 15px; }
        footer { margin-top: 40px; padding: 20px; background: #f5f5f5; }