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

        body {
            font-family: 'Georgia', 'Times New Roman', serif;
            line-height: 1.8;
            color: #333;
            background: #f5f5f5;
        }

        header {
            background: #fff;
            padding: 60px 20px 40px;
            text-align: center;
            border-bottom: 1px solid #e0e0e0;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        h1 {
            font-size: 2.8em;
            font-weight: 300;
            color: #2c2c2c;
            letter-spacing: 2px;
            margin-bottom: 10px;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            background: #fff;
            box-shadow: 0 0 30px rgba(0,0,0,0.08);
        }

        article {
            padding: 60px 40px;
            background: #fff;
        }

        article p {
            margin-bottom: 1.5em;
            font-size: 1.1em;
            color: #444;
            text-align: justify;
        }

        article h2 {
            font-size: 2em;
            margin: 1.8em 0 0.8em;
            color: #2c2c2c;
            font-weight: 400;
            letter-spacing: 1px;
        }

        article h3 {
            font-size: 1.5em;
            margin: 1.5em 0 0.7em;
            color: #3c3c3c;
            font-weight: 400;
        }

        article h4 {
            font-size: 1.2em;
            margin: 1.3em 0 0.6em;
            color: #4c4c4c;
            font-weight: 400;
        }

        .transition-section {
            padding: 50px 40px;
            background: #fafafa;
            border-top: 1px solid #e8e8e8;
            border-bottom: 1px solid #e8e8e8;
        }

        .transition-section p {
            font-size: 1.1em;
            color: #555;
            margin-bottom: 1.3em;
            line-height: 1.8;
        }

        .links-section {
            padding: 60px 40px 80px;
            background: #fff;
        }

        .links-section h3 {
            font-size: 1.6em;
            margin: 2em 0 1em;
            color: #2c2c2c;
            font-weight: 400;
            letter-spacing: 0.5px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0e0e0;
        }

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

        .links-section ul {
            list-style: none;
            column-count: 2;
            column-gap: 40px;
            margin-bottom: 2em;
        }

        .links-section li {
            margin-bottom: 12px;
            break-inside: avoid;
        }

        .links-section a {
            color: #666;
            text-decoration: none;
            font-size: 1.05em;
            transition: color 0.3s ease;
            display: inline-block;
            position: relative;
            padding-left: 15px;
        }

        .links-section a:before {
            content: "→";
            position: absolute;
            left: 0;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .links-section a:hover {
            color: #333;
        }

        .links-section a:hover:before {
            opacity: 1;
        }

        footer {
            background: #2c2c2c;
            color: #aaa;
            text-align: center;
            padding: 30px 20px;
            font-size: 0.9em;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2em;
                letter-spacing: 1px;
            }

            header {
                padding: 40px 20px 30px;
            }

            article {
                padding: 40px 25px;
            }

            article p {
                font-size: 1.05em;
                text-align: left;
            }

            article h2 {
                font-size: 1.6em;
            }

            article h3 {
                font-size: 1.3em;
            }

            .transition-section {
                padding: 35px 25px;
            }

            .links-section {
                padding: 40px 25px 60px;
            }

            .links-section ul {
                column-count: 1;
                column-gap: 0;
            }

            .links-section h3 {
                font-size: 1.4em;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.6em;
            }

            article {
                padding: 30px 20px;
            }

            article p {
                font-size: 1em;
            }

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

            .links-section {
                padding: 30px 20px 50px;
            }
        }