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

        body {
            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #fff;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 300;
            text-align: center;
            padding: 3rem 1.5rem 2rem;
            letter-spacing: -0.02em;
            border-bottom: 1px solid #e0e0e0;
            margin-bottom: 3rem;
        }

        article {
            max-width: 800px;
            margin: 0 auto 4rem;
            padding: 0 1.5rem;
        }

        article h2 {
            font-size: 1.8rem;
            font-weight: 400;
            margin: 2.5rem 0 1rem;
            letter-spacing: -0.01em;
        }

        article h3 {
            font-size: 1.4rem;
            font-weight: 400;
            margin: 2rem 0 0.8rem;
        }

        article h4 {
            font-size: 1.2rem;
            font-weight: 500;
            margin: 1.5rem 0 0.6rem;
        }

        article p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .transition-section {
            max-width: 800px;
            margin: 0 auto 4rem;
            padding: 0 1.5rem;
        }

        .transition-section p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .links-section {
            background-color: #fafafa;
            border-top: 1px solid #e0e0e0;
            border-bottom: 1px solid #e0e0e0;
            padding: 4rem 1.5rem;
        }

        .links-container {
            max-width: 1000px;
            margin: 0 auto;
        }

        .links-section h2 {
            font-size: 1.8rem;
            font-weight: 400;
            margin-bottom: 2rem;
            text-align: center;
            letter-spacing: -0.01em;
        }

        .links-section h3 {
            font-size: 1.3rem;
            font-weight: 500;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid #ddd;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem 2rem;
            margin-bottom: 2.5rem;
        }

        .links-section li {
            padding: 0.3rem 0;
        }

        .links-section a {
            color: #333;
            text-decoration: none;
            font-size: 1rem;
            transition: color 0.2s ease;
            display: inline-block;
        }

        .links-section a:hover {
            color: #666;
        }

        .links-section a::before {
            content: '→ ';
            opacity: 0;
            transition: opacity 0.2s ease;
            margin-right: 0.3rem;
        }

        .links-section a:hover::before {
            opacity: 1;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
                padding: 2rem 1rem 1.5rem;
                margin-bottom: 2rem;
            }

            article {
                margin-bottom: 3rem;
                padding: 0 1rem;
            }

            article h2 {
                font-size: 1.5rem;
                margin: 2rem 0 0.8rem;
            }

            article h3 {
                font-size: 1.25rem;
            }

            article h4 {
                font-size: 1.1rem;
            }

            article p {
                font-size: 1rem;
            }

            .transition-section {
                margin-bottom: 3rem;
                padding: 0 1rem;
            }

            .transition-section p {
                font-size: 1rem;
            }

            .links-section {
                padding: 3rem 1rem;
            }

            .links-section h2 {
                font-size: 1.5rem;
                margin-bottom: 1.5rem;
            }

            .links-section h3 {
                font-size: 1.2rem;
                margin: 1.5rem 0 0.8rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }

            .links-section a {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.6rem;
                padding: 1.5rem 0.75rem 1rem;
            }

            article,
            .transition-section {
                padding: 0 0.75rem;
            }

            .links-section {
                padding: 2.5rem 0.75rem;
            }
        }