.tool-container {
            background-color: #f9f9f9;
            border-left: 4px solid #3498db;
            padding: 15px;
            margin: 20px 0;
            border-radius: 0 5px 5px 0;
        }
        .tool-title {
            font-size: 1.3em;
            font-weight: bold;
            color: #2c3e50;
        }
        .try-now {
            display: inline-block;
            background-color: #3498db;
            color: white;
            padding: 8px 15px;
            border-radius: 5px;
            margin-top: 10px;
            font-weight: bold;
        }
        .try-now:hover {
            background-color: #2980b9;
            text-decoration: none;
        }
        .underline {
            text-decoration: underline;
        }
        .intro {
            //font-size: 1.1em;
            //line-height: 1.8;
        }
        .pointer {
            font-weight: bold;
            color: #e74c3c;
        }
        .conclusion {
            background-color: #e8f4fc;
            padding: 20px;
            border-radius: 5px;
            margin-top: 30px;
        }