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

        html {
            font-size: 62.5%;
        }

        body {
            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
            font-size: 1.6rem;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
        }

        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background-color: #fff;
            box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
        }

        header {
            background-color: #fff;
            padding: 3rem 2rem;
            border-bottom: 3px solid #2c5f8d;
        }

        .header-container {
            max-width: 1170px;
            margin: 0 auto;
        }

        h1 {
            font-size: 3.6rem;
            color: #2c5f8d;
            margin-bottom: 1rem;
            line-height: 1.2;
        }

        article {
            padding: 4rem 2rem;
            max-width: 1170px;
            margin: 0 auto;
            background-color: #fff;
        }

        article h2 {
            font-size: 2.8rem;
            color: #2c5f8d;
            margin-top: 3rem;
            margin-bottom: 1.5rem;
            line-height: 1.3;
        }

        article h3 {
            font-size: 2.2rem;
            color: #333;
            margin-top: 2.5rem;
            margin-bottom: 1.2rem;
            line-height: 1.4;
        }

        article h4 {
            font-size: 1.8rem;
            color: #555;
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.4;
        }

        article p {
            margin-bottom: 1.5rem;
            color: #555;
            line-height: 1.7;
        }

        article ul, article ol {
            margin-left: 2rem;
            margin-bottom: 1.5rem;
        }

        article li {
            margin-bottom: 0.8rem;
            color: #555;
            line-height: 1.6;
        }

        .transition-section {
            background-color: #f9f9f9;
            padding: 3rem 2rem;
            border-top: 1px solid #e0e0e0;
            border-bottom: 1px solid #e0e0e0;
        }

        .transition-content {
            max-width: 1170px;
            margin: 0 auto;
        }

        .transition-content p {
            margin-bottom: 1.5rem;
            color: #555;
            line-height: 1.7;
        }

        .links-section {
            padding: 4rem 2rem;
            background-color: #fff;
        }

        .links-container {
            max-width: 1170px;
            margin: 0 auto;
        }

        .links-section h3 {
            font-size: 2.4rem;
            color: #2c5f8d;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 2px solid #2c5f8d;
        }

        .links-section ul {
            list-style: none;
            column-count: 2;
            column-gap: 3rem;
            margin-bottom: 3rem;
        }

        .links-section li {
            margin-bottom: 1.2rem;
            break-inside: avoid;
        }

        .links-section a {
            color: #2c5f8d;
            text-decoration: none;
            display: inline-block;
            padding: 0.5rem 0;
            transition: color 0.3s ease, padding-left 0.3s ease;
            line-height: 1.5;
        }

        .links-section a:hover {
            color: #1a3d5c;
            padding-left: 0.5rem;
        }

        .links-section a::before {
            content: "› ";
            font-weight: bold;
        }

        footer {
            background-color: #2c5f8d;
            color: #fff;
            padding: 2rem;
            text-align: center;
            font-size: 1.4rem;
        }

        @media (max-width: 768px) {
            html {
                font-size: 55%;
            }

            h1 {
                font-size: 3rem;
            }

            article h2 {
                font-size: 2.4rem;
            }

            article h3 {
                font-size: 2rem;
            }

            header {
                padding: 2rem 1.5rem;
            }

            article {
                padding: 3rem 1.5rem;
            }

            .transition-section {
                padding: 2.5rem 1.5rem;
            }

            .links-section {
                padding: 3rem 1.5rem;
            }

            .links-section ul {
                column-count: 1;
            }
        }

        @media (max-width: 480px) {
            html {
                font-size: 50%;
            }

            h1 {
                font-size: 2.6rem;
            }

            header {
                padding: 1.5rem 1rem;
            }

            article {
                padding: 2rem 1rem;
            }

            .transition-section {
                padding: 2rem 1rem;
            }

            .links-section {
                padding: 2rem 1rem;
            }
        }