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

        html {
            font-size: 16px;
            line-height: 1.6;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: #222;
            background-color: #f5f5f5;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        header {
            background-color: #2c3e50;
            color: #fff;
            padding: 1.5rem 0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        header nav {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        header nav p {
            font-size: 0.85rem;
            opacity: 0.8;
            margin-bottom: 1rem;
        }

        .menu ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }

        .menu li {
            display: inline-block;
        }

        .menu a {
            color: #fff;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }

        .menu a:hover {
            color: #3498db;
            border-bottom-color: #3498db;
        }

        .menu .current_page_item a {
            color: #3498db;
            border-bottom-color: #3498db;
        }

        main {
            flex: 1;
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }

        h1 {
            font-size: 2.5rem;
            color: #2c3e50;
            margin-bottom: 0.5rem;
            font-weight: 700;
            line-height: 1.2;
        }

        article {
            background-color: #fff;
            padding: 2.5rem;
            margin: 2rem 0;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }

        article h2 {
            font-size: 2rem;
            color: #2c3e50;
            margin-bottom: 0.5rem;
            font-weight: 600;
        }

        article h3 {
            font-size: 1.5rem;
            color: #34495e;
            margin-top: 1.5rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        article h4 {
            font-size: 1.25rem;
            color: #555;
            margin-bottom: 1.5rem;
            font-weight: 500;
            font-style: italic;
        }

        article p {
            margin-bottom: 1.25rem;
            color: #444;
            line-height: 1.8;
        }

        article p strong {
            color: #2c3e50;
            font-weight: 600;
        }

        article a {
            color: #3498db;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        article a:hover {
            color: #2980b9;
            text-decoration: underline;
        }

        .transition-section {
            background-color: #fff;
            padding: 2rem 2.5rem;
            margin: 2rem 0;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
        }

        .transition-section p {
            color: #444;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .links-section {
            background-color: #fff;
            padding: 2.5rem;
            margin: 2rem 0;
            border-radius: 8px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            border-left: 4px solid #3498db;
        }

        .links-section h3 {
            font-size: 1.5rem;
            color: #2c3e50;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.75rem 2rem;
            margin-bottom: 2rem;
        }

        .links-section ul:last-child {
            margin-bottom: 0;
        }

        .links-section li {
            padding-left: 1.25rem;
            position: relative;
        }

        .links-section li:before {
            content: "→";
            position: absolute;
            left: 0;
            color: #3498db;
            font-weight: bold;
        }

        .links-section a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s ease;
            line-height: 1.6;
        }

        .links-section a:hover {
            color: #2980b9;
            text-decoration: underline;
        }

        footer {
            background-color: #2c3e50;
            color: #fff;
            padding: 2rem 1.5rem;
            margin-top: auto;
        }

        footer .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
            opacity: 0.8;
        }

        @media only screen and (max-width: 768px) {
            html {
                font-size: 14px;
            }

            h1 {
                font-size: 2rem;
            }

            .menu ul {
                flex-direction: column;
                gap: 0.5rem;
            }

            article {
                padding: 1.5rem;
            }

            article h2 {
                font-size: 1.75rem;
            }

            article h3 {
                font-size: 1.25rem;
            }

            .transition-section {
                padding: 1.5rem;
            }

            .links-section {
                padding: 1.5rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.75rem;
            }
        }

        @media only screen and (max-width: 480px) {
            main {
                padding: 1.5rem 1rem;
            }

            h1 {
                font-size: 1.75rem;
            }

            article {
                padding: 1.25rem;
            }

            .transition-section {
                padding: 1.25rem;
            }

            .links-section {
                padding: 1.25rem;
            }
        }

        @media print {
            * {
                background: transparent !important;
                color: #000 !important;
                box-shadow: none !important;
                text-shadow: none !important;
            }

            body {
                background: #fff;
            }

            a, a:visited {
                text-decoration: underline;
            }

            header, footer {
                display: none;
            }

            article, .transition-section, .links-section {
                box-shadow: none;
                border: 1px solid #ccc;
                page-break-inside: avoid;
            }

            h1, h2, h3 {
                page-break-after: avoid;
            }
        }