body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1000px; margin: 0 auto; padding: 20px; }
        h1 { color: #FF6B35; text-align: center; }
        h2 { color: #00A8E8; border-bottom: 2px solid #FF6B35; padding-bottom: 5px; }
        h3 { color: #757F9A; }
        .logo { font-size: 2em; font-weight: bold; color: #FF6B35; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); }
        .nav { background-color: #00A8E8; 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; }
        .content img { max-width: 100%; height: auto; margin: 20px 0; }
        .download-btn, .login-btn { background-color: #FF6B35; color: white; padding: 10px 20px; border: none; border-radius: 5px; cursor: pointer; margin: 10px 0; }
        .tags { margin: 20px 0; }
        .tag { background-color: #757F9A; color: white; padding: 5px 10px; border-radius: 3px; margin: 5px; display: inline-block; }
        .footer { text-align: center; margin-top: 30px; padding: 20px; background-color: #f0f0f0; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .mobile-menu { display: block; }
            .desktop-nav { display: none; }
        }