* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            background-color: #ffffff;
            font-family: Verdana, Geneva, Arial, Helvetica, sans-serif;
            font-size: 14px;
            color: #333;
            line-height: 1.6;
            padding: 20px;
        }

        h1 {
            font-size: 2em;
            color: #000;
            background-color: #fff;
            border: 2px solid #000;
            padding: 15px 20px;
            display: inline-block;
            margin: 20px 0 30px 0;
            position: relative;
        }

        h2 {
            font-size: 1.4em;
            color: #000;
            margin: 25px 0 15px 0;
            padding-bottom: 8px;
            border-bottom: 1px solid #999;
        }

        h3 {
            font-size: 1.2em;
            color: #000;
            background-color: #fff;
            border: 1px solid #999;
            padding: 10px 15px;
            display: inline-block;
            margin: 20px 0 15px 0;
            position: relative;
        }

        article {
            max-width: 900px;
            margin: 0 auto 40px auto;
            background-color: #fff;
            border: 1px solid #999;
            padding: 30px;
        }

        article p {
            margin-bottom: 15px;
            font-size: 14px;
        }

        article h2 {
            margin-top: 30px;
        }

        article h2:first-of-type {
            margin-top: 0;
        }

        .transition-section {
            max-width: 900px;
            margin: 0 auto 40px auto;
            background-color: #fff;
            border: 1px solid #999;
            padding: 30px;
        }

        .transition-section p {
            margin-bottom: 15px;
            font-size: 14px;
        }

        .links-section {
            max-width: 900px;
            margin: 0 auto 40px auto;
            background-color: #fff;
            border: 1px solid #999;
            padding: 30px;
        }

        .links-section h3 {
            margin-top: 0;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px 30px;
            margin: 20px 0 30px 0;
            padding: 0;
        }

        .links-section li {
            position: relative;
            padding-left: 20px;
            margin: 0;
        }

        .links-section li:before {
            content: "■";
            color: #999;
            position: absolute;
            left: 0;
            font-size: 0.8em;
        }

        .links-section a {
            color: #0000ff;
            text-decoration: underline;
            font-size: 14px;
        }

        .links-section a:visited {
            color: #000;
        }

        .links-section a:hover {
            color: #ff0000;
        }

        a {
            color: #0000ff;
            text-decoration: underline;
        }

        a:visited {
            color: #000;
        }

        a:hover {
            color: #ff0000;
        }

        strong {
            font-weight: bold;
        }

        @media (max-width: 768px) {
            body {
                padding: 15px;
            }

            h1 {
                font-size: 1.5em;
                padding: 12px 15px;
                margin: 15px 0 20px 0;
            }

            h2 {
                font-size: 1.2em;
                margin: 20px 0 12px 0;
            }

            h3 {
                font-size: 1.1em;
                padding: 8px 12px;
                margin: 15px 0 12px 0;
            }

            article,
            .transition-section,
            .links-section {
                padding: 20px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 10px;
                font-size: 13px;
            }

            h1 {
                font-size: 1.3em;
                padding: 10px 12px;
            }

            h2 {
                font-size: 1.1em;
            }

            h3 {
                font-size: 1em;
                padding: 8px 10px;
            }

            article,
            .transition-section,
            .links-section {
                padding: 15px;
            }
        }