body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #FF6B35; font-size: 2.5em; text-align: center; margin-bottom: 10px; }
        h2 { color: #2C3E50; border-bottom: 2px solid #FF6B35; padding-bottom: 5px; margin-top: 30px; }
        h3 { color: #3498DB; margin-top: 20px; }
        .logo { font-size: 2em; font-weight: bold; color: #FF6B35; text-align: center; margin: 20px 0; }
        .download-btn, .login-btn { background-color: #27AE60; color: white; padding: 12px 25px; border: none; border-radius: 5px; font-size: 1.1em; margin: 15px 0; display: inline-block; text-decoration: none; }
        .download-btn:hover, .login-btn:hover { background-color: #219653; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .nav-mobile { display: none; background-color: #2C3E50; color: white; padding: 10px; text-align: center; cursor: pointer; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .nav-mobile { display: block; }
            body { padding: 10px; }
        }
        .tags { margin: 20px 0; }
        .tag { background-color: #ECF0F1; padding: 5px 10px; border-radius: 15px; margin: 5px; display: inline-block; }
        .copyright { text-align: center; margin-top: 40px; padding-top: 20px; border-top: 1px solid #ddd; font-size: 0.9em; color: #777; }