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

        body {
            font-family: Arial, Helvetica, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f5f5f5;
        }

        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            background-color: #fff;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }

        header {
            background: linear-gradient(to bottom, #fff 0%, #f0f0f0 100%);
            padding: 20px 30px;
            border-bottom: 3px solid #ff9900;
        }

        header h1 {
            color: #ff9900;
            font-size: 2em;
            font-weight: bold;
        }

        main {
            padding: 30px;
        }

        article {
            margin-bottom: 40px;
        }

        article h1 {
            color: #ff9900;
            font-size: 2.2em;
            margin-bottom: 20px;
            line-height: 1.3;
        }

        article h2 {
            color: #339966;
            font-size: 1.8em;
            margin-top: 30px;
            margin-bottom: 15px;
        }

        article h3 {
            color: #ff9900;
            font-size: 1.4em;
            margin-top: 25px;
            margin-bottom: 12px;
        }

        article h4 {
            color: #333;
            font-size: 1.2em;
            margin-top: 20px;
            margin-bottom: 10px;
        }

        article p {
            margin-bottom: 15px;
            text-align: justify;
            color: #444;
        }

        .transition-section {
            background-color: #f9f9f9;
            padding: 25px 30px;
            margin: 30px 0;
            border-left: 4px solid #ff9900;
        }

        .transition-section p {
            margin-bottom: 12px;
            color: #555;
        }

        .links-section {
            background-color: #fafafa;
            padding: 35px 30px;
            margin-top: 30px;
            border-top: 2px solid #e0e0e0;
        }

        .links-section h3 {
            color: #339966;
            font-size: 1.5em;
            margin-bottom: 15px;
            margin-top: 25px;
        }

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

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

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

        .links-section a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.3s ease;
            display: inline-block;
        }

        .links-section a:hover {
            color: #ff9900;
            text-decoration: underline;
        }

        .links-section a::before {
            content: "→ ";
            color: #ff9900;
            margin-right: 5px;
        }

        footer {
            background: linear-gradient(to top, #fff 0%, #f0f0f0 100%);
            padding: 20px 30px;
            border-top: 3px solid #ff9900;
            text-align: center;
            color: #666;
            font-size: 0.9em;
        }

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

            header h1 {
                font-size: 1.5em;
            }

            main {
                padding: 20px;
            }

            article h1 {
                font-size: 1.8em;
            }

            article h2 {
                font-size: 1.5em;
            }

            article h3 {
                font-size: 1.3em;
            }

            .transition-section {
                padding: 20px;
            }

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

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

            footer {
                padding: 15px 20px;
            }
        }

        @media (max-width: 480px) {
            header h1 {
                font-size: 1.3em;
            }

            article h1 {
                font-size: 1.5em;
            }

            article h2 {
                font-size: 1.3em;
            }

            article h3 {
                font-size: 1.2em;
            }
        }