body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; background-color: #f5f5f5; }
        h1 { color: #e67e22; text-align: center; margin-bottom: 30px; }
        h2 { color: #d35400; border-bottom: 2px solid #f1c40f; padding-bottom: 5px; margin-top: 40px; }
        h3 { color: #2980b9; margin-top: 25px; }
        .download-btn, .login-btn { display: inline-block; background-color: #27ae60; color: white; padding: 10px 20px; margin: 10px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .download-btn:hover, .login-btn:hover { background-color: #219653; }
        .logo { font-size: 2em; font-weight: bold; color: #e67e22; text-align: center; margin: 20px 0; }
        nav { background-color: #333; overflow: hidden; }
        nav a { float: left; color: white; text-align: center; padding: 14px 16px; text-decoration: none; font-size: 17px; }
        nav a:hover { background-color: #ddd; color: black; }
        .mobile-nav-toggle { display: none; background-color: #333; color: white; padding: 10px; cursor: pointer; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .tags { margin-top: 30px; }
        .tag { display: inline-block; background-color: #95a5a6; color: white; padding: 5px 10px; margin: 5px; border-radius: 3px; }
        footer { margin-top: 50px; text-align: center; padding: 20px; background-color: #333; color: white; }
        @media screen and (max-width: 768px) {
            nav a { float: none; display: none; }
            nav a.icon { float: right; display: block; }
            .mobile-nav-toggle { display: block; }
            nav.responsive { position: relative; }
            nav.responsive .icon { position: absolute; right: 0; top: 0; }
            nav.responsive a { float: none; display: block; text-align: left; }
        }