body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; margin: 0; padding: 0; background-color: #f9f9f9; }
        .container { max-width: 1200px; margin: 0 auto; padding: 20px; }
        .header { background-color: #ff6b35; color: white; padding: 20px; text-align: center; font-size: 2em; }
        .header-logo { font-weight: bold; text-shadow: 2px 2px 4px rgba(0,0,0,0.3); }
        .nav { background-color: #333; overflow: hidden; }
        .nav a { float: left; display: block; color: white; text-align: center; padding: 14px 16px; text-decoration: none; }
        .nav a:hover { background-color: #ddd; color: black; }
        .mobile-nav-btn { display: none; background-color: #444; color: white; border: none; padding: 10px; cursor: pointer; }
        .content { padding: 20px; }
        .download-btn, .login-btn { background-color: #4CAF50; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; margin: 10px 2px; cursor: pointer; }
        .image-container { text-align: center; margin: 20px 0; }
        .image-container img { max-width: 100%; height: auto; }
        .footer { background-color: #333; color: white; text-align: center; padding: 20px; }
        .tags { margin: 20px 0; }
        .tag { background-color: #e7e7e7; color: #333; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 5px; }
        h1, h2, h3 { color: #ff6b35; }
        h1 { font-size: 2.2em; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.5em; }
        @media screen and (max-width: 768px) {
            .nav a { float: none; display: none; }
            .nav a.active { display: block; }
            .mobile-nav-btn { display: block; }
        }