* {
            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: #333;
            background-color: #f5f5f5;
        }

        .header {
            background: linear-gradient(135deg, #2c5f8d 0%, #1a4570 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .main-content {
            background: white;
            margin: 40px auto;
            padding: 50px;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
        }

        article h2 {
            color: #2c5f8d;
            font-size: 2rem;
            margin-top: 30px;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 3px solid #2c5f8d;
        }

        article h3 {
            color: #1a4570;
            font-size: 1.5rem;
            margin-top: 25px;
            margin-bottom: 12px;
        }

        article h4 {
            color: #2c5f8d;
            font-size: 1.25rem;
            margin-top: 20px;
            margin-bottom: 10px;
        }

        article h5 {
            color: #333;
            font-size: 1.1rem;
            margin-top: 15px;
            margin-bottom: 8px;
        }

        article h6 {
            color: #555;
            font-size: 1rem;
            margin-top: 15px;
            margin-bottom: 8px;
        }

        article p {
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
            color: #444;
        }

        article ul, article ol {
            margin-bottom: 20px;
            margin-left: 30px;
        }

        article li {
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .transition-section {
            background: #f8f9fa;
            padding: 40px 50px;
            margin: 40px auto;
            border-left: 4px solid #2c5f8d;
            border-radius: 4px;
        }

        .transition-section p {
            font-size: 1.05rem;
            line-height: 1.8;
            color: #444;
            margin-bottom: 15px;
        }

        .links-section {
            background: white;
            margin: 40px auto;
            padding: 50px;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            border-top: 4px solid #2c5f8d;
        }

        .links-section h3 {
            color: #2c5f8d;
            font-size: 1.75rem;
            margin-top: 30px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0e0e0;
        }

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

        .links-section ul {
            list-style: none;
            margin: 0;
            padding: 0;
            column-count: 2;
            column-gap: 40px;
        }

        .links-section li {
            margin-bottom: 12px;
            break-inside: avoid;
            page-break-inside: avoid;
        }

        .links-section a {
            color: #2c5f8d;
            text-decoration: none;
            font-size: 1.05rem;
            transition: color 0.3s ease;
            display: inline-block;
        }

        .links-section a:hover {
            color: #1a4570;
            text-decoration: underline;
        }

        .links-section a::before {
            content: "→ ";
            margin-right: 5px;
            color: #2c5f8d;
        }

        .footer {
            background: #2c5f8d;
            color: white;
            text-align: center;
            padding: 30px 20px;
            margin-top: 60px;
        }

        .footer p {
            margin: 0;
            font-size: 0.95rem;
        }

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

            .main-content {
                padding: 30px 25px;
                margin: 20px auto;
            }

            article h2 {
                font-size: 1.6rem;
            }

            article h3 {
                font-size: 1.3rem;
            }

            article p {
                font-size: 1rem;
            }

            .transition-section {
                padding: 25px 20px;
                margin: 20px auto;
            }

            .links-section {
                padding: 30px 25px;
                margin: 20px auto;
            }

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

            .links-section h3 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 480px) {
            .header {
                padding: 40px 15px;
            }

            .header h1 {
                font-size: 1.5rem;
            }

            .main-content {
                padding: 20px 15px;
            }

            article h2 {
                font-size: 1.4rem;
            }

            .links-section {
                padding: 20px 15px;
            }
        }