body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 2.5em; font-weight: bold; color: #FF6B35; margin-bottom: 20px; text-align: center; }
        nav { background: #1A3C40; padding: 15px; display: flex; justify-content: space-around; }
        nav a { color: white; text-decoration: none; font-weight: bold; }
        .mobile-nav-toggle { display: none; }
        h1 { color: #1A3C40; border-bottom: 3px solid #FF6B35; padding-bottom: 10px; }
        h2 { color: #FF6B35; margin-top: 30px; }
        h3 { color: #1A3C40; }
        .download-btn, .login-btn { background: #FF6B35; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; display: inline-block; font-weight: bold; }
        .feature-box { background: #f0f8ff; padding: 20px; margin: 20px 0; border-radius: 8px; }
        img { max-width: 100%; height: auto; display: block; margin: 20px auto; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        table, th, td { border: 1px solid #ddd; }
        th, td { padding: 12px; text-align: left; }
        .tags { margin: 20px 0; }
        .tags a { background: #e0f7fa; padding: 5px 10px; margin: 3px; display: inline-block; border-radius: 3px; }
        footer { background: #1A3C40; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        @media (max-width: 768px) {
            nav { flex-direction: column; display: none; }
            .mobile-nav-toggle { display: block; background: #FF6B35; color: white; padding: 10px; text-align: center; cursor: pointer; }
            .active { display: flex; }
        }