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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: #212529;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            border-radius: 16px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
        }

        header {
            background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
            padding: 40px 30px;
            text-align: center;
            color: white;
        }

        h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin: 0;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }

        article {
            padding: 40px 30px;
            background: #fff;
        }

        article h2 {
            color: #007bff;
            font-size: 2rem;
            margin: 30px 0 15px 0;
            padding-bottom: 10px;
            border-bottom: 3px solid #007bff;
        }

        article h3 {
            color: #0056b3;
            font-size: 1.5rem;
            margin: 25px 0 12px 0;
        }

        article h4 {
            color: #495057;
            font-size: 1.25rem;
            margin: 20px 0 10px 0;
        }

        article h5 {
            color: #6c757d;
            font-size: 1.1rem;
            margin: 15px 0 8px 0;
        }

        article h6 {
            color: #6c757d;
            font-size: 1rem;
            margin: 15px 0 8px 0;
        }

        article p {
            margin-bottom: 16px;
            font-size: 1.05rem;
            color: #495057;
            text-align: justify;
        }

        .transition-section {
            padding: 30px;
            background: #f8f9fa;
            border-top: 1px solid #dee2e6;
        }

        .transition-section p {
            font-size: 1.05rem;
            color: #495057;
            margin-bottom: 16px;
            text-align: justify;
        }

        .links-section {
            padding: 40px 30px;
            background: linear-gradient(to bottom, #f8f9fa 0%, #e9ecef 100%);
            border-top: 3px solid #007bff;
        }

        .links-section h3 {
            color: #007bff;
            font-size: 1.5rem;
            margin: 25px 0 15px 0;
            padding-left: 15px;
            border-left: 4px solid #007bff;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px;
            margin-bottom: 30px;
            padding: 0;
        }

        .links-section li {
            background: white;
            border-radius: 8px;
            transition: all 0.3s ease;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .links-section li:hover {
            transform: translateX(5px);
            box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
        }

        .links-section a {
            display: block;
            padding: 12px 16px;
            color: #007bff;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .links-section a:hover {
            color: #0056b3;
        }

        .links-section a::before {
            content: "→ ";
            margin-right: 8px;
            font-weight: bold;
        }

        @media (max-width: 768px) {
            body {
                padding: 10px;
            }

            header {
                padding: 30px 20px;
            }

            h1 {
                font-size: 1.75rem;
            }

            article {
                padding: 25px 20px;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.25rem;
            }

            article p {
                font-size: 1rem;
            }

            .transition-section {
                padding: 20px;
            }

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

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .links-section h3 {
                font-size: 1.25rem;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }

            article h2 {
                font-size: 1.25rem;
            }

            article h3 {
                font-size: 1.1rem;
            }
        }