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

        body {
            font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
            line-height: 1.6;
            color: #101a23;
            background: #fafafa;
        }

        #mastheader {
            width: 100%;
            background: #000;
            padding: 20px 0;
        }

        #masthead {
            max-width: 950px;
            margin: 0 auto;
            padding: 0 20px;
        }

        #logo h1 {
            color: #fff;
            font-size: 1.8em;
            font-weight: bold;
            margin: 0;
        }

        .sf-menu {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .sf-menu li {
            background: #333;
            border-radius: 12px;
        }

        .sf-menu li a {
            display: block;
            padding: 8px 16px;
            color: #bbb;
            text-decoration: none;
            font-size: 12px;
            font-weight: bold;
            border-radius: 12px;
            transition: all 0.3s ease;
        }

        .sf-menu li a:hover,
        .sf-menu li.current-menu-item a {
            background: #fafafa;
            color: #000;
        }

        .container {
            max-width: 950px;
            margin: 40px auto;
            padding: 0 20px;
        }

        h1 {
            font-size: 2.5em;
            color: #101a23;
            margin-bottom: 30px;
            line-height: 1.2;
            font-weight: bold;
        }

        article {
            background: #fff;
            padding: 40px;
            margin-bottom: 40px;
            border: 1px solid #eee;
        }

        article h2 {
            font-size: 1.8em;
            color: #101a23;
            margin: 30px 0 15px 0;
            font-weight: bold;
        }

        article h3 {
            font-size: 1.4em;
            color: #101a23;
            margin: 25px 0 12px 0;
            font-weight: bold;
        }

        article h4 {
            font-size: 1.2em;
            color: #101a23;
            margin: 20px 0 10px 0;
            font-weight: bold;
        }

        article p {
            margin-bottom: 20px;
            color: #101a23;
            line-height: 1.8;
        }

        article a {
            color: #101a23;
            border-bottom: 1px dotted #bbb;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        article a:hover {
            color: #bbb;
            border-bottom-color: #bbb;
        }

        .transition-section {
            background: #eee;
            padding: 30px 40px;
            margin-bottom: 40px;
            border-left: 5px solid #bbb;
        }

        .transition-section p {
            color: #101a23;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .links-section {
            background: #fff;
            padding: 40px;
            border: 1px solid #eee;
            margin-bottom: 40px;
        }

        .links-section h3 {
            color: #bbb;
            font-size: 1.3em;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
            font-weight: bold;
        }

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

        .links-section ul li {
            margin-bottom: 12px;
            break-inside: avoid;
            padding-left: 15px;
            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="%23bbb"/></svg>') no-repeat 0 8px;
        }

        .links-section ul li a {
            color: #101a23;
            text-decoration: none;
            border-bottom: 1px dotted #bbb;
            transition: all 0.3s ease;
            display: inline;
        }

        .links-section ul li a:hover {
            color: #bbb;
            background: #fafafa;
            padding-left: 5px;
        }

        #footer-wrap {
            background: #000;
            padding: 40px 0;
            margin-top: 60px;
        }

        #footer {
            max-width: 950px;
            margin: 0 auto;
            padding: 0 20px;
            color: #bbb;
        }

        #footer p {
            color: #bbb;
            font-size: 0.9em;
            line-height: 1.6;
        }

        #footer a {
            color: #888;
            border-bottom: 1px dotted #666;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        #footer a:hover {
            color: #bbb;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2em;
            }

            article {
                padding: 25px;
            }

            article h2 {
                font-size: 1.5em;
            }

            article h3 {
                font-size: 1.3em;
            }

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

            .sf-menu li {
                width: 100%;
            }

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

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

        @media (max-width: 480px) {
            #logo h1 {
                font-size: 1.4em;
            }

            h1 {
                font-size: 1.6em;
            }

            article {
                padding: 20px;
            }

            .sf-menu li a {
                padding: 10px 14px;
            }
        }