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: 28px; font-weight: bold; color: #FF6B35; text-shadow: 1px 1px 2px rgba(0,0,0,0.2); margin-bottom: 20px; }
        nav { background: #2C3E50; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        nav a { color: white; text-decoration: none; margin: 0 10px; }
        .mobile-menu { display: none; color: white; font-size: 24px; }
        h1 { color: #2C3E50; border-bottom: 2px solid #FF6B35; padding-bottom: 10px; }
        h2 { color: #FF6B35; margin-top: 30px; }
        h3 { color: #3498DB; }
        .download-btn { background: #27AE60; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 15px 0; }
        .login-btn { background: #3498DB; color: white; padding: 12px 25px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 15px 0; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        footer { background: #2C3E50; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        .tag { background: #E74C3C; color: white; padding: 5px 10px; border-radius: 3px; margin: 5px; display: inline-block; }
        @media (max-width: 768px) {
            nav { flex-direction: column; }
            .mobile-menu { display: block; }
            .desktop-nav { display: none; }
            .show-nav { display: flex; flex-direction: column; }
        }