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: #0066cc; text-decoration: none; }
        nav { background: #f8f8f8; padding: 15px; margin-bottom: 20px; }
        nav a { margin-right: 15px; text-decoration: none; color: #0066cc; }
        .mobile-menu { display: none; }
        h1 { color: #003366; border-bottom: 2px solid #0066cc; padding-bottom: 10px; }
        h2 { color: #004d99; margin-top: 30px; }
        h3 { color: #0066cc; }
        .download-btn, .login-btn { display: inline-block; padding: 12px 25px; background: #0066cc; color: white; border-radius: 5px; text-decoration: none; margin: 15px 0; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
        th { background: #f2f2f2; }
        .tags { margin: 20px 0; }
        .tag { background: #e0e0e0; padding: 5px 10px; margin-right: 5px; border-radius: 3px; }
        footer { margin-top: 40px; padding: 20px 0; border-top: 1px solid #ddd; }
        @media (max-width: 768px) {
            .desktop-menu { display: none; }
            .mobile-menu { display: block; }
            .logo { font-size: 24px; }
        }