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

        body {
            font-family: Georgia, "Times New Roman", Times, serif;
            font-size: 16px;
            line-height: 1.6;
            color: #444;
            background: #f2f2f2;
        }

        .header-top {
            background: #0c2a8c;
            padding: 12px 0;
            border-bottom: 1px solid #4e6d8e;
        }

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

        .nav-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }

        .nav-list li a {
            color: #d1dce7;
            text-decoration: none;
            font-size: 0.95em;
            transition: color 0.3s;
        }

        .nav-list li a:hover {
            color: #fff;
        }

        header {
            background: #A3B7F8;
            padding: 25px 0;
        }

        h1 {
            color: #0c2a8c;
            font-size: 2.5em;
            font-weight: bold;
            margin-bottom: 10px;
        }

        .categories-nav {
            background: #e3edf0;
            border-top: 1px solid #bdd3db;
            padding: 0;
        }

        .categories-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0;
        }

        .categories-list li {
            position: relative;
        }

        .categories-list li a {
            display: block;
            padding: 14px 15px;
            color: #708389;
            text-decoration: none;
            font-family: Verdana, Arial, Helvetica, sans-serif;
            font-size: 0.95em;
            transition: all 0.3s;
        }

        .categories-list li:hover {
            background: #d7e5e9;
        }

        .categories-list li a:hover {
            color: #0c2a8c;
        }

        main {
            background: #F7FBFC;
            border-top: 6px solid #d1e1e7;
            padding: 40px 0;
            min-height: 400px;
        }

        article {
            background: #fff;
            padding: 30px;
            margin-bottom: 30px;
            border: 1px solid #d9e2e9;
            box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        }

        article h2 {
            color: #0c2a8c;
            font-size: 2em;
            margin: 25px 0 15px 0;
            font-family: Arial, Helvetica, sans-serif;
        }

        article h3 {
            color: #0c2a8c;
            font-size: 1.5em;
            margin: 25px 0 12px 0;
            font-family: Arial, Helvetica, sans-serif;
        }

        article h4 {
            color: #0c2a8c;
            font-size: 1.2em;
            margin: 20px 0 10px 0;
            font-family: Arial, Helvetica, sans-serif;
        }

        article p {
            margin: 0 0 15px 0;
            font-size: 1.05em;
            color: #444;
            line-height: 1.8;
        }

        article ul, article ol {
            margin: 15px 0 15px 25px;
        }

        article li {
            margin: 8px 0;
            font-size: 1.05em;
            line-height: 1.7;
        }

        article a {
            color: #0c2a8c;
            text-decoration: underline;
        }

        article a:hover {
            color: #2f5074;
        }

        .transition-section {
            background: #fff;
            padding: 25px 30px;
            margin-bottom: 30px;
            border: 1px solid #d9e2e9;
        }

        .transition-section p {
            font-size: 1.05em;
            color: #444;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .links-section {
            background: #fff;
            padding: 30px;
            border: 1px solid #d9e2e9;
            margin-bottom: 30px;
        }

        .links-section h3 {
            color: #0c2a8c;
            font-size: 1.6em;
            margin: 25px 0 15px 0;
            font-family: Georgia, "Times New Roman", Times, serif;
            padding-bottom: 8px;
            border-bottom: 1px solid #d9e2e9;
        }

        .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: 12px 30px;
            margin: 15px 0 20px 0;
        }

        .links-section ul li {
            margin: 0;
        }

        .links-section ul li a {
            color: #0c2a8c;
            text-decoration: none;
            font-size: 1em;
            display: inline-block;
            padding: 5px 0;
            border-bottom: 1px solid transparent;
            transition: all 0.3s;
        }

        .links-section ul li a:hover {
            color: #2f5074;
            border-bottom-color: #2f5074;
        }

        footer {
            background: #f2f2f2;
            padding: 40px 0;
            border-top: 1px solid #d9e2e9;
            text-align: center;
        }

        footer p {
            color: #a7a1a1;
            font-family: Arial, Helvetica, sans-serif;
            font-size: 0.92em;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 1.8em;
            }

            .categories-list {
                flex-direction: column;
            }

            .categories-list li a {
                padding: 12px 15px;
            }

            article {
                padding: 20px;
            }

            article h2 {
                font-size: 1.6em;
            }

            article h3 {
                font-size: 1.3em;
            }

            .links-section {
                padding: 20px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .nav-list {
                flex-direction: column;
                gap: 10px;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.5em;
            }

            article {
                padding: 15px;
            }

            article h2 {
                font-size: 1.4em;
            }

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