body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #FF6600; text-align: center; }
        h2 { color: #FF9933; border-bottom: 2px solid #FF6600; padding-bottom: 5px; }
        h3 { color: #339966; }
        .logo { font-size: 28px; font-weight: bold; color: #FF6600; text-align: center; margin: 20px 0; }
        .nav { display: flex; justify-content: center; gap: 20px; margin: 20px 0; flex-wrap: wrap; }
        .nav a { text-decoration: none; color: #333; font-weight: bold; }
        .mobile-nav { display: none; }
        @media (max-width: 768px) {
            .desktop-nav { display: none; }
            .mobile-nav { display: block; text-align: center; margin: 20px 0; }
            .mobile-nav button { padding: 10px 20px; background: #FF6600; color: white; border: none; cursor: pointer; }
        }
        .download-btn { display: block; text-align: center; margin: 30px 0; }
        .download-btn a { background: #339966; color: white; padding: 15px 30px; text-decoration: none; border-radius: 5px; font-weight: bold; }
        .login-btn { display: block; text-align: center; margin: 20px 0; }
        .login-btn a { background: #FF9933; color: white; padding: 15px 30px; text-decoration: none; border-radius: 5px; font-weight: bold; }
        .image-container { text-align: center; margin: 30px 0; }
        .image-container img { max-width: 100%; height: auto; }
        .tags { margin: 30px 0; }
        .footer { margin-top: 50px; padding-top: 20px; border-top: 1px solid #ddd; text-align: center; }