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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, 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 20px rgba(0, 0, 0, 0.1);
        }

        header {
            background: linear-gradient(135deg, #2c5f7c 0%, #4a8ba8 100%);
            color: #fff;
            padding: 2rem 2rem 1.5rem;
            text-align: center;
        }

        header h1 {
            font-size: 2.5rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }

        main {
            padding: 3rem 2rem;
        }

        article {
            max-width: 900px;
            margin: 0 auto 3rem;
        }

        article h2 {
            color: #2c5f7c;
            font-size: 1.8rem;
            margin: 2rem 0 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 3px solid #4a8ba8;
        }

        article h3 {
            color: #2c5f7c;
            font-size: 1.4rem;
            margin: 1.5rem 0 0.8rem;
        }

        article h4 {
            color: #4a8ba8;
            font-size: 1.2rem;
            margin: 1.2rem 0 0.6rem;
        }

        article p {
            margin-bottom: 1rem;
            font-size: 1.05rem;
            text-align: justify;
        }

        .transition-section {
            max-width: 900px;
            margin: 0 auto 3rem;
            padding: 2rem;
            background-color: #f9f9f9;
            border-left: 4px solid #4a8ba8;
            border-radius: 4px;
        }

        .transition-section p {
            font-size: 1.05rem;
            margin-bottom: 1rem;
            line-height: 1.7;
        }

        .links-section {
            background: linear-gradient(to bottom, #f0f6f8 0%, #e8f1f5 100%);
            padding: 3rem 2rem;
            border-top: 3px solid #4a8ba8;
        }

        .links-container {
            max-width: 1000px;
            margin: 0 auto;
        }

        .links-section h3 {
            color: #2c5f7c;
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #4a8ba8;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem 2rem;
            margin-bottom: 2.5rem;
        }

        .links-section li {
            padding-left: 1.2rem;
            position: relative;
        }

        .links-section li:before {
            content: "→";
            position: absolute;
            left: 0;
            color: #4a8ba8;
            font-weight: bold;
        }

        .links-section a {
            color: #2c5f7c;
            text-decoration: none;
            transition: color 0.3s ease;
            font-size: 1rem;
        }

        .links-section a:hover {
            color: #4a8ba8;
            text-decoration: underline;
        }

        footer {
            background-color: #2c5f7c;
            color: #fff;
            padding: 2rem;
            text-align: center;
            font-size: 0.9rem;
        }

        @media (max-width: 768px) {
            header h1 {
                font-size: 1.8rem;
            }

            main {
                padding: 2rem 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            article p {
                font-size: 1rem;
                text-align: left;
            }

            .transition-section {
                padding: 1.5rem;
            }

            .links-section {
                padding: 2rem 1.5rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.6rem;
            }

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

        @media (max-width: 480px) {
            header {
                padding: 1.5rem 1rem;
            }

            header h1 {
                font-size: 1.5rem;
            }

            main {
                padding: 1.5rem 1rem;
            }

            article h2 {
                font-size: 1.3rem;
            }

            .transition-section {
                padding: 1rem;
            }

            .links-section {
                padding: 1.5rem 1rem;
            }
        }