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

        body {
            font-family: "Helvetica Neue", Tahoma, Arial, Helvetica, sans-serif;
            color: #444;
            background: #E5E5E5;
            line-height: 1.6;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #FFF;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        header {
            background: #FFF;
            border-bottom: 4px solid #333;
            padding: 20px 40px;
        }

        header h1 {
            font-family: Georgia, serif;
            font-style: italic;
            font-size: 2.5em;
            color: #333;
            margin: 0;
        }

        nav {
            background: #666;
            border-bottom: 1px solid #CFCFCF;
            padding: 0 20px;
        }

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

        nav ul li {
            margin: 0 1px 0 0;
        }

        nav ul li a {
            display: block;
            padding: 0 20px;
            line-height: 2em;
            color: #FFF;
            text-decoration: none;
            background-color: #666;
            border-top-left-radius: 6px;
            border-top-right-radius: 6px;
            border-bottom: 1px solid #CFCFCF;
            font-size: 0.9em;
        }

        nav ul li a:hover {
            background-color: #333;
            border-bottom-color: #333;
        }

        main {
            padding: 40px;
            background: #FAF8F8;
            min-height: 500px;
        }

        article {
            margin-bottom: 30px;
        }

        article h1, article h2, article h3, article h4, article h5, article h6 {
            font-family: Georgia, serif;
            font-style: italic;
            color: #333;
            margin: 1.5em 0 0.8em 0;
        }

        article h2 {
            font-size: 2em;
        }

        article h3 {
            font-size: 1.6em;
        }

        article h4 {
            font-size: 1.3em;
        }

        article p {
            margin: 0 0 1em 0;
            line-height: 1.6;
        }

        article ul, article ol {
            margin: 0.6em 0.8em 1em 0.8em;
            padding-left: 1.2em;
        }

        article li {
            margin: 0 0 0.3em 0;
        }

        .transition-section {
            margin: 30px 0;
        }

        .transition-section p {
            margin: 0 0 1em 0;
            line-height: 1.6;
        }

        .links-section {
            margin-top: 40px;
            padding: 30px;
            background: #FDFDFD;
            border: 3px solid #E9E9E9;
            border-radius: 6px;
        }

        .links-section h3 {
            font-family: Georgia, serif;
            font-style: italic;
            color: #333;
            font-size: 1.5em;
            margin: 1.5em 0 0.8em 0;
            padding-bottom: 0.3em;
            border-bottom: 1px dashed #BBB;
        }

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

        .links-section ul {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
            column-count: 2;
            column-gap: 30px;
        }

        .links-section ul li {
            margin: 0 0 10px 0;
            padding-left: 20px;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><circle cx="4" cy="8" r="2" fill="%23D93A2B"/></svg>') no-repeat 0 5px;
            break-inside: avoid;
        }

        .links-section ul li a {
            color: #D93A2B;
            text-decoration: underline;
            transition: color 0.2s;
        }

        .links-section ul li a:visited {
            color: #A62C21;
        }

        .links-section ul li a:hover {
            color: #82B84B;
            text-decoration: none;
        }

        footer {
            background: #333;
            color: #FFF;
            padding: 30px 40px;
            text-align: center;
            font-size: 0.9em;
        }

        footer p {
            margin: 0;
        }

        footer a {
            color: #EEE;
        }

        footer a:hover {
            color: #9ED16B;
        }

        @media (max-width: 768px) {
            header {
                padding: 15px 20px;
            }

            header h1 {
                font-size: 2em;
            }

            nav ul {
                flex-direction: column;
            }

            nav ul li {
                margin: 0;
            }

            nav ul li a {
                border-radius: 0;
                border-bottom: 1px dotted #888;
            }

            main {
                padding: 20px;
            }

            .links-section {
                padding: 20px;
            }

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

            footer {
                padding: 20px;
            }
        }

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

            nav ul li a {
                padding: 0 15px;
                font-size: 0.85em;
            }

            article h2 {
                font-size: 1.6em;
            }

            article h3 {
                font-size: 1.3em;
            }

            .links-section h3 {
                font-size: 1.3em;
            }
        }