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

        body {
            font-family: Georgia, "Bitstream Charter", serif;
            line-height: 1.6;
            color: #333;
            background: #f1f1f1;
        }

        #wrapper {
            max-width: 980px;
            margin: 20px auto;
            background: #fff;
            padding: 0 20px 40px;
        }

        header {
            padding: 30px 0 0;
            border-bottom: 1px solid #e7e7e7;
        }

        #site-title {
            font-size: 32px;
            font-weight: bold;
            margin-bottom: 10px;
            color: #000;
        }

        #site-title a {
            color: #000;
            text-decoration: none;
        }

        #site-title a:hover {
            color: #ff4b33;
        }

        #site-description {
            font-style: italic;
            color: #666;
            margin-bottom: 20px;
            font-size: 16px;
        }

        nav {
            background: #000;
            margin: 0 -20px 40px;
        }

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

        nav li {
            margin: 0;
        }

        nav a {
            display: block;
            padding: 12px 20px;
            color: #aaa;
            text-decoration: none;
            font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;
            font-size: 14px;
            transition: all 0.3s;
        }

        nav a:hover,
        nav a.active {
            background: #333;
            color: #fff;
        }

        main {
            max-width: 900px;
            margin: 0 auto;
        }

        h1 {
            font-size: 28px;
            color: #000;
            margin: 30px 0 20px;
            line-height: 1.3;
            font-weight: bold;
        }

        article {
            margin-bottom: 40px;
        }

        article p {
            margin-bottom: 24px;
            font-size: 16px;
            line-height: 1.6;
        }

        article h2 {
            font-size: 24px;
            color: #000;
            margin: 30px 0 15px;
            font-weight: bold;
        }

        article h3 {
            font-size: 20px;
            color: #000;
            margin: 25px 0 12px;
            font-weight: bold;
        }

        article ul,
        article ol {
            margin: 0 0 24px 2em;
        }

        article ul {
            list-style: square;
        }

        article ol {
            list-style: decimal;
        }

        article li {
            margin-bottom: 8px;
        }

        .transition-section {
            margin: 40px 0;
            padding: 30px;
            background: #f9f9f9;
            border-left: 4px solid #000;
        }

        .transition-section p {
            font-size: 16px;
            line-height: 1.6;
            margin-bottom: 20px;
        }

        .transition-section p:last-child {
            margin-bottom: 0;
        }

        .links-section {
            margin: 40px 0;
            padding: 40px;
            background: #f2f7fc;
            border-top: 4px solid #000;
        }

        .links-section h2 {
            font-size: 24px;
            color: #000;
            margin-bottom: 30px;
            font-weight: bold;
        }

        .links-section h3 {
            font-size: 18px;
            color: #000;
            margin: 25px 0 15px;
            font-weight: bold;
            font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;
        }

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

        .links-section li {
            margin-bottom: 10px;
            break-inside: avoid;
        }

        .links-section a {
            color: #06c;
            text-decoration: none;
            font-size: 15px;
            transition: color 0.3s;
        }

        .links-section a:visited {
            color: #743399;
        }

        .links-section a:hover {
            color: #ff4b33;
            text-decoration: underline;
        }

        footer {
            margin-top: 60px;
            padding: 20px 0;
            border-top: 4px solid #000;
            font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;
        }

        #footer-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        #site-info {
            font-weight: bold;
            font-size: 14px;
        }

        #site-info a {
            color: #000;
            text-decoration: none;
        }

        #site-info a:hover {
            color: #ff4b33;
        }

        @media (max-width: 768px) {
            #wrapper {
                margin: 10px;
                padding: 0 15px 30px;
            }

            nav {
                margin: 0 -15px 30px;
            }

            nav ul {
                flex-direction: column;
            }

            nav a {
                padding: 10px 15px;
                border-bottom: 1px solid #333;
            }

            h1 {
                font-size: 24px;
                margin: 20px 0 15px;
            }

            article h2 {
                font-size: 20px;
            }

            article h3 {
                font-size: 18px;
            }

            .transition-section {
                padding: 20px;
            }

            .links-section {
                padding: 25px 20px;
            }

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

            #footer-content {
                flex-direction: column;
                gap: 10px;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            body {
                font-size: 14px;
            }

            #site-title {
                font-size: 26px;
            }

            h1 {
                font-size: 22px;
            }

            article p,
            .transition-section p {
                font-size: 15px;
            }
        }