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

        body {
            font-family: 'Segoe UI', Tahoma, Verdana, Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(to bottom, #e8f0f8 0%, #ffffff 300px);
            min-height: 100vh;
        }

        header {
            background: linear-gradient(135deg, #28549e 0%, #3d6bb3 100%);
            color: #ffffff;
            padding: 2rem 1rem;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .header-content h1 {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
        }

        .header-subtitle {
            font-size: 1rem;
            opacity: 0.95;
            font-weight: 300;
        }

        nav {
            background: #2a4a7f;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-content {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            padding: 0 1rem;
        }

        nav a {
            color: #ffffff;
            text-decoration: none;
            padding: 1rem 1.5rem;
            display: block;
            transition: background 0.3s ease;
            font-weight: 500;
            font-size: 0.95rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        nav a:hover {
            background: #3d6bb3;
        }

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

        .page-title {
            font-size: 2rem;
            color: #28549e;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid #3d6bb3;
        }

        article {
            background: #ffffff;
            padding: 2.5rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
            line-height: 1.8;
        }

        article h2 {
            color: #28549e;
            font-size: 1.75rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        article h3 {
            color: #3d6bb3;
            font-size: 1.4rem;
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
        }

        article h4 {
            color: #4a7bc4;
            font-size: 1.2rem;
            margin-top: 1.25rem;
            margin-bottom: 0.5rem;
        }

        article p {
            margin-bottom: 1.25rem;
            color: #444;
        }

        article ul, article ol {
            margin-left: 2rem;
            margin-bottom: 1.25rem;
        }

        article li {
            margin-bottom: 0.5rem;
            color: #444;
        }

        article strong {
            color: #28549e;
            font-weight: 600;
        }

        .transition-section {
            background: #f8fafc;
            padding: 2rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            border-left: 4px solid #3d6bb3;
        }

        .transition-section p {
            color: #555;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .links-section {
            background: #ffffff;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }

        .links-section h3 {
            color: #28549e;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid #e0e8f0;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.75rem 2rem;
            margin-bottom: 2rem;
        }

        .links-section li {
            margin: 0;
        }

        .links-section a {
            color: #3d6bb3;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 0;
            position: relative;
        }

        .links-section a:before {
            content: "→";
            margin-right: 0.5rem;
            color: #28549e;
            font-weight: bold;
            transition: margin-right 0.3s ease;
        }

        .links-section a:hover {
            color: #28549e;
            padding-left: 0.25rem;
        }

        .links-section a:hover:before {
            margin-right: 0.75rem;
        }

        footer {
            background: #28549e;
            color: #ffffff;
            padding: 2rem 1rem;
            margin-top: 3rem;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: 1rem;
        }

        .footer-links a {
            color: #ffffff;
            text-decoration: none;
            font-size: 0.9rem;
            transition: opacity 0.3s ease;
        }

        .footer-links a:hover {
            opacity: 0.8;
        }

        .copyright {
            font-size: 0.9rem;
            opacity: 0.9;
            margin-top: 1rem;
        }

        @media (max-width: 768px) {
            .header-content h1 {
                font-size: 1.75rem;
            }

            nav a {
                padding: 0.75rem 1rem;
                font-size: 0.85rem;
            }

            .page-title {
                font-size: 1.5rem;
            }

            article {
                padding: 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.25rem;
            }

            .links-section {
                padding: 1.5rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }

            .footer-links {
                flex-direction: column;
                gap: 0.75rem;
            }
        }

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

            nav a {
                padding: 0.6rem 0.75rem;
                font-size: 0.8rem;
            }

            article {
                padding: 1rem;
            }

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