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

        body {
            font-family: Verdana, Arial, Helvetica, sans-serif;
            background-color: #525294;
            color: #E3E3FF;
            line-height: 1.6;
        }

        header {
            background-color: #525294;
            padding: 20px 0;
            border-bottom: 3px solid #003366;
        }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo-section {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 20px;
        }

        nav {
            background-color: #CCCCCC;
            border-top: 1px solid #999;
            border-bottom: 1px solid #999;
        }

        .nav-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
        }

        .nav-item {
            flex: 1 1 auto;
            min-width: 150px;
            text-align: center;
            padding: 12px 15px;
            color: #003366;
            cursor: pointer;
            border-right: 1px solid #999;
            transition: background-color 0.3s, color 0.3s;
            font-size: 11px;
        }

        .nav-item:last-child {
            border-right: none;
        }

        .nav-item:hover {
            background-color: #003366;
            color: #FFFFFF;
        }

        .main-content {
            background-color: #CCCCCC;
            padding: 30px 20px;
        }

        .content-wrapper {
            max-width: 1200px;
            margin: 0 auto;
        }

        h1 {
            color: #003366;
            font-size: 28px;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 3px solid #525294;
        }

        article {
            background-color: #FFFFFF;
            padding: 30px;
            margin-bottom: 30px;
            border-radius: 5px;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        article p {
            color: #000000;
            font-size: 11px;
            margin-bottom: 15px;
        }

        article h2 {
            color: #003366;
            font-size: 18px;
            margin-top: 20px;
            margin-bottom: 15px;
        }

        article h3 {
            color: #525294;
            font-size: 14px;
            margin-top: 15px;
            margin-bottom: 10px;
        }

        .transition-section {
            background-color: #FFFFFF;
            padding: 25px 30px;
            margin-bottom: 30px;
            border-radius: 5px;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .transition-section p {
            color: #000000;
            font-size: 11px;
            margin-bottom: 12px;
        }

        .links-section {
            background-color: #525294;
            padding: 30px;
            border-radius: 5px;
            margin-bottom: 30px;
        }

        .links-section h3 {
            color: #E3E3FF;
            font-size: 16px;
            margin-top: 20px;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid #E3E3FF;
        }

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

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 10px 30px;
            margin-bottom: 20px;
        }

        .links-section li {
            padding: 5px 0;
        }

        .links-section a {
            color: #E3E3FF;
            text-decoration: none;
            font-size: 11px;
            transition: color 0.3s;
            display: inline-block;
        }

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

        .links-section li::before {
            content: "▸ ";
            color: #E3E3FF;
            margin-right: 5px;
        }

        footer {
            background-color: #000000;
            padding: 15px 20px;
            text-align: center;
        }

        footer p {
            color: #FFFFFF;
            font-size: 10px;
            margin: 5px 0;
        }

        footer a {
            color: #E3E3FF;
            text-decoration: none;
        }

        footer a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        .breadcrumb {
            background-color: #000000;
            padding: 8px 20px;
            font-size: 10px;
        }

        .breadcrumb-wrapper {
            max-width: 1200px;
            margin: 0 auto;
            color: #FFFFFF;
        }

        .breadcrumb a {
            color: #E3E3FF;
            text-decoration: none;
        }

        .breadcrumb a:hover {
            color: #FFFFFF;
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            .nav-item {
                min-width: 120px;
                font-size: 10px;
                padding: 10px 8px;
            }

            h1 {
                font-size: 22px;
            }

            article {
                padding: 20px;
            }

            .links-section {
                padding: 20px;
            }

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

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

        @media (max-width: 480px) {
            .nav-item {
                flex: 1 1 100%;
                border-right: none;
                border-bottom: 1px solid #999;
            }

            .nav-item:last-child {
                border-bottom: none;
            }

            h1 {
                font-size: 20px;
            }

            article {
                padding: 15px;
            }

            .links-section {
                padding: 15px;
            }
        }