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

        body {
            font-family: Arial, Helvetica, sans-serif;
            font-size: 100%;
            line-height: 1.7em;
            background: #e0dedf url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><rect fill="%23e0dedf" width="100" height="100"/></svg>');
            color: #333;
            margin: 0;
            padding: 0;
        }

        #all {
            max-width: 1050px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 20px rgba(0,0,0,0.1);
        }

        header {
            background: linear-gradient(to bottom, #0c1a3e 0%, #0d4c89 100%);
            color: #fff;
            padding: 2em 1.5em;
            min-height: 200px;
            position: relative;
        }

        header h1 {
            font-size: 2.5em;
            font-weight: normal;
            text-transform: uppercase;
            margin: 0;
            padding: 0.5em 0;
            color: #fff;
        }

        nav {
            background: #e0e0e0;
            border-top: 1px solid #ddd;
            margin: 0;
        }

        nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-wrap: wrap;
        }

        nav ul li {
            margin: 0;
        }

        nav ul li a {
            display: block;
            padding: 12px 15px;
            color: #333;
            text-decoration: none;
            border-right: 1px solid #ddd;
            transition: all 0.3s ease;
        }

        nav ul li a:hover,
        nav ul li a:focus {
            background: #0d4c89;
            color: #fff;
        }

        #breadcrumbs {
            padding: 15px 20px;
            font-size: 0.85em;
            color: #333;
            background: #fff;
        }

        main {
            padding: 20px;
            min-height: 400px;
        }

        article {
            margin-bottom: 2em;
        }

        article h1 {
            font-size: 1.8em;
            color: #0d4c89;
            border-bottom: 1px solid #ddd;
            padding: 10px 5px;
            margin-bottom: 1em;
            font-weight: normal;
        }

        article h2 {
            font-size: 1.4em;
            color: #555;
            margin: 1.5em 0 0.8em;
            font-weight: normal;
        }

        article h3 {
            font-size: 1.2em;
            color: #555;
            margin: 1.2em 0 0.6em;
        }

        article p {
            margin: 0.8em 0;
            line-height: 1.7em;
        }

        article ul,
        article ol {
            margin: 1em 0 1em 2em;
            line-height: 1.7em;
        }

        article ul li,
        article ol li {
            margin: 0.5em 0;
        }

        article a {
            color: #095197;
            text-decoration: none;
        }

        article a:hover,
        article a:focus {
            background: #095197;
            color: #fff;
            padding: 2px 4px;
        }

        .transition-section {
            padding: 1.5em 0;
            margin: 2em 0;
        }

        .links-section {
            background: #f9f9f9;
            padding: 2em 1.5em;
            margin-top: 2em;
            border-top: 2px solid #0d4c89;
        }

        .links-section h2 {
            font-size: 1.6em;
            color: #0d4c89;
            margin-bottom: 1.5em;
            font-weight: normal;
        }

        .links-section h3 {
            font-size: 1.3em;
            color: #555;
            margin: 1.5em 0 0.8em;
            padding-bottom: 0.3em;
            border-bottom: 1px solid #ddd;
        }

        .links-section ul {
            list-style: none;
            padding: 0;
            margin: 0;
            column-count: 2;
            column-gap: 2em;
        }

        .links-section ul li {
            break-inside: avoid;
            padding: 0.5em 0;
        }

        .links-section ul li a {
            color: #095197;
            text-decoration: none;
            display: block;
            padding: 0.3em 0 0.3em 1.2em;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="8" height="8"><circle cx="4" cy="4" r="3" fill="%23095197"/></svg>') no-repeat left 0.6em;
            transition: all 0.2s ease;
        }

        .links-section ul li a:hover,
        .links-section ul li a:focus {
            background-color: #095197;
            color: #fff;
            padding-left: 1.5em;
        }

        footer {
            background: #333;
            color: #fff;
            padding: 2em 1.5em;
            margin-top: 3em;
            text-align: center;
        }

        footer p {
            margin: 0.5em 0;
            font-size: 0.9em;
        }

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

        footer a:hover {
            text-decoration: underline;
        }

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

            nav ul {
                flex-direction: column;
            }

            nav ul li a {
                border-right: none;
                border-bottom: 1px solid #ddd;
            }

            article h1 {
                font-size: 1.5em;
            }

            article h2 {
                font-size: 1.3em;
            }

            .links-section ul {
                column-count: 1;
            }

            main {
                padding: 15px;
            }
        }

        @media (max-width: 480px) {
            header h1 {
                font-size: 1.5em;
                padding: 0.3em 0;
            }

            header {
                padding: 1.5em 1em;
                min-height: 150px;
            }

            article h1 {
                font-size: 1.3em;
            }

            nav ul li a {
                padding: 10px 12px;
            }

            .links-section {
                padding: 1.5em 1em;
            }
        }