* {
            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: linear-gradient(135deg, #CDECFF 0%, #E8F6FF 100%);
            min-height: 100vh;
        }

        header {
            background: linear-gradient(135deg, #0066CC 0%, #0099FF 100%);
            color: white;
            padding: 2rem 1rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        header h1 {
            font-size: 2rem;
            text-align: center;
            font-weight: 600;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }

        nav {
            background: #005599;
            padding: 0;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            max-width: 1200px;
            margin: 0 auto;
        }

        nav ul li {
            margin: 0;
        }

        nav ul li a {
            display: block;
            padding: 1rem 1.5rem;
            color: white;
            text-decoration: none;
            transition: background-color 0.3s ease;
            border-bottom: 3px solid transparent;
        }

        nav ul li a:hover {
            background-color: #0066CC;
            border-bottom-color: #CDECFF;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 2rem 1rem;
        }

        article {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
        }

        article h2, article h3, article h4 {
            color: #0066CC;
            margin: 1.5rem 0 1rem;
        }

        article h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #CDECFF;
            padding-bottom: 0.5rem;
        }

        article h3 {
            font-size: 1.4rem;
        }

        article h4 {
            font-size: 1.2rem;
        }

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

        article img {
            max-width: 100%;
            height: auto;
            display: block;
            margin: 1.5rem auto;
            border-radius: 4px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        article table {
            width: 100%;
            margin: 1.5rem 0;
            border-collapse: collapse;
        }

        article table td {
            padding: 1rem;
            border: 1px solid #ddd;
        }

        .transition-section {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
        }

        .transition-section p {
            margin-bottom: 1rem;
        }

        .links-section {
            background: white;
            padding: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            margin-bottom: 2rem;
        }

        .links-section h3 {
            color: #0066CC;
            margin: 1.5rem 0 1rem;
            font-size: 1.3rem;
            border-left: 4px solid #0099FF;
            padding-left: 1rem;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 0.5rem 2rem;
            margin-bottom: 2rem;
        }

        .links-section ul li {
            padding: 0.5rem 0;
        }

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

        .links-section ul li a:hover {
            color: #0099FF;
            text-decoration: underline;
        }

        .links-section ul li a::before {
            content: "→ ";
            color: #0099FF;
        }

        footer {
            background: #005599;
            color: white;
            padding: 2rem 1rem;
            text-align: center;
            margin-top: 3rem;
        }

        @media (max-width: 768px) {
            header h1 {
                font-size: 1.5rem;
            }

            nav ul {
                flex-direction: column;
            }

            nav ul li a {
                padding: 0.75rem 1rem;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            }

            article, .transition-section, .links-section {
                padding: 1.5rem;
            }

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

            .container {
                padding: 1rem;
            }
        }

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

            header h1 {
                font-size: 1.3rem;
            }

            nav ul li a {
                padding: 0.6rem 1rem;
                font-size: 0.9rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

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