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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: #3a3a3a;
            background-color: #fff;
        }

        header {
            background-color: #fff;
            padding: 20px 0;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            text-align: center;
        }

        .site-logo {
            font-size: 28px;
            font-weight: bold;
            color: #fd051f;
            text-decoration: none;
        }

        nav {
            background-color: #f8f8f8;
            border-bottom: 3px solid #ddd;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .nav-menu {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            padding: 0;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-menu a {
            display: block;
            padding: 15px 20px;
            color: #666;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .nav-menu a:hover {
            color: #fd051f;
            background-color: #fff;
        }

        main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px 20px;
        }

        h1 {
            font-size: 32px;
            line-height: 1.3;
            color: #fd051f;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 3px solid #ddd;
            font-weight: 700;
        }

        article {
            background-color: #fff;
            padding: 30px;
            margin-bottom: 40px;
            border-radius: 5px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        article h2 {
            font-size: 26px;
            color: #333;
            margin: 30px 0 15px;
            font-weight: 700;
        }

        article h3 {
            font-size: 22px;
            color: #444;
            margin: 25px 0 12px;
            font-weight: 600;
        }

        article h4 {
            font-size: 18px;
            color: #555;
            margin: 20px 0 10px;
            font-weight: 600;
        }

        article p {
            margin-bottom: 15px;
            font-size: 16px;
            line-height: 1.8;
        }

        .transition-section {
            background-color: #f8f8f8;
            padding: 30px;
            margin-bottom: 40px;
            border-radius: 5px;
            border-left: 4px solid #fd051f;
        }

        .transition-section p {
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        {% if links %}
        .links-section {
            background-color: #fff;
            padding: 40px 30px;
            border-radius: 5px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            border-top: 3px solid #fd051f;
        }

        .links-section h3 {
            font-size: 22px;
            color: #333;
            margin: 30px 0 15px;
            font-weight: 700;
        }

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

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

        .links-section li {
            padding: 8px 0;
            border-bottom: 1px solid #eee;
        }

        .links-section a {
            color: #666;
            text-decoration: none;
            transition: color 0.3s ease;
            display: block;
            padding: 5px 0;
        }

        .links-section a:hover {
            color: #fd051f;
            padding-left: 5px;
        }

        .links-section a::before {
            content: "→ ";
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

        footer {
            background-color: #4c5053;
            color: #e5e5e5;
            padding: 40px 20px 20px;
            margin-top: 60px;
        }

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

        .footer-container p {
            margin: 10px 0;
            font-size: 14px;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 24px;
            }

            article {
                padding: 20px;
            }

            article h2 {
                font-size: 22px;
            }

            article h3 {
                font-size: 18px;
            }

            .nav-menu {
                flex-direction: column;
            }

            .nav-menu li {
                width: 100%;
                border-bottom: 1px solid #ddd;
            }

            .nav-menu a {
                padding: 12px 15px;
            }

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

        @media (max-width: 480px) {
            main {
                padding: 20px 15px;
            }

            article {
                padding: 15px;
            }

            .transition-section {
                padding: 20px;
            }

            {% if links %}
            .links-section {
                padding: 25px 20px;
            }
            {% endif %}
        }