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

        body {
            font-family: "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
            padding: 0;
        }

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

        header {
            background: linear-gradient(135deg, #4EB116 0%, #3d8f11 100%);
            padding: 20px 30px;
            border-bottom: 4px solid #FF983C;
        }

        header h1 {
            color: #fff;
            font-size: 2em;
            font-weight: bold;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }

        nav {
            background-color: #fff;
            border-bottom: 3px solid #4EB116;
            padding: 0;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
        }

        nav ul li {
            flex: 1 1 auto;
            min-width: 150px;
            text-align: center;
        }

        nav ul li a {
            display: block;
            padding: 15px 20px;
            color: #333;
            text-decoration: none;
            font-weight: bold;
            font-size: 0.95em;
            border-right: 1px solid #e0e0e0;
            transition: all 0.3s ease;
        }

        nav ul li:last-child a {
            border-right: none;
        }

        nav ul li a:hover {
            background-color: #4EB116;
            color: #fff;
        }

        main {
            padding: 40px 30px;
        }

        article {
            margin-bottom: 40px;
            line-height: 1.8;
        }

        article h2 {
            color: #4EB116;
            font-size: 1.8em;
            margin: 30px 0 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #FF983C;
        }

        article h3 {
            color: #F97600;
            font-size: 1.4em;
            margin: 25px 0 15px;
            padding-left: 15px;
            border-left: 5px solid #4EB116;
        }

        article h4 {
            color: #694221;
            font-size: 1.2em;
            margin: 20px 0 10px;
        }

        article p {
            margin-bottom: 20px;
            text-align: justify;
        }

        article ul, article ol {
            margin: 15px 0 20px 30px;
        }

        article ul li, article ol li {
            margin-bottom: 10px;
        }

        .transition-section {
            background: linear-gradient(to bottom, #DAF5CB 0%, #EBE0BE 100%);
            padding: 30px;
            margin: 40px 0;
            border-radius: 8px;
            border-left: 5px solid #4EB116;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .transition-section p {
            margin-bottom: 15px;
            line-height: 1.8;
        }

        {% if links %}
        .links-section {
            background-color: #fafafa;
            padding: 40px 30px;
            margin-top: 40px;
            border-top: 4px solid #4EB116;
        }

        .links-section h2 {
            color: #4EB116;
            font-size: 2em;
            margin-bottom: 30px;
            text-align: center;
            padding-bottom: 15px;
            border-bottom: 3px solid #FF983C;
        }

        .links-section h3 {
            color: #F97600;
            font-size: 1.3em;
            margin: 25px 0 15px;
            padding-left: 15px;
            border-left: 5px solid #4EB116;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px 20px;
            margin-bottom: 30px;
        }

        .links-section ul li {
            padding: 8px 0;
        }

        .links-section ul li a {
            color: #090;
            text-decoration: none;
            transition: all 0.3s ease;
            display: block;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .links-section ul li a:hover {
            color: #F60;
            background-color: rgba(78, 177, 22, 0.1);
            padding-left: 20px;
        }

        .links-section ul li a:visited {
            color: #960;
        }
        {% endif %}

        footer {
            background-color: #333;
            color: #fff;
            text-align: center;
            padding: 30px 20px;
            margin-top: 40px;
            border-top: 4px solid #4EB116;
        }

        footer p {
            margin-bottom: 10px;
            font-size: 0.9em;
        }

        @media (max-width: 768px) {
            body {
                font-size: 14px;
            }

            header {
                padding: 15px 20px;
            }

            header h1 {
                font-size: 1.5em;
            }

            nav ul {
                flex-direction: column;
            }

            nav ul li {
                width: 100%;
                border-right: none;
                border-bottom: 1px solid #e0e0e0;
            }

            nav ul li a {
                border-right: none;
                padding: 12px 15px;
            }

            main {
                padding: 20px 15px;
            }

            article h2 {
                font-size: 1.5em;
            }

            article h3 {
                font-size: 1.2em;
            }

            .transition-section {
                padding: 20px 15px;
            }

            {% if links %}
            .links-section {
                padding: 30px 15px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 5px;
            }
            {% endif %}
        }

        @media (max-width: 480px) {
            header h1 {
                font-size: 1.3em;
            }

            article h2 {
                font-size: 1.3em;
            }

            article h3 {
                font-size: 1.1em;
                padding-left: 10px;
            }
        }