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

        body {
            font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen-Sans', 'Ubuntu', 'Cantarell', 'Helvetica Neue', sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: rgba(0, 0, 0, 0.87);
            background: #fff;
        }

        header {
            background: linear-gradient(135deg, #3c7cac 0%, #007ab2 100%);
            padding: 40px 20px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        header h1 {
            color: #fff;
            font-size: 2.5em;
            font-weight: 700;
            text-align: center;
            max-width: 1200px;
            margin: 0 auto;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }

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

        article {
            background: #fff;
            padding: 40px 20px;
            margin-bottom: 40px;
        }

        article h2 {
            font-size: 1.8em;
            color: #007ab2;
            margin: 30px 0 15px;
            font-weight: 700;
            line-height: 1.3;
        }

        article h3 {
            font-size: 1.4em;
            color: #3c7cac;
            margin: 25px 0 12px;
            font-weight: 700;
        }

        article h4 {
            font-size: 1.2em;
            color: #007ab2;
            margin: 20px 0 10px;
            font-weight: 600;
        }

        article p {
            margin: 15px 0;
            line-height: 1.8;
            color: rgba(0, 0, 0, 0.87);
            text-align: justify;
        }

        article p:first-of-type {
            margin-top: 0;
        }

        .transition-section {
            background: #f8f9fa;
            padding: 40px 20px;
            margin: 40px 0;
            border-left: 4px solid #007ab2;
        }

        .transition-section p {
            line-height: 1.8;
            color: rgba(0, 0, 0, 0.87);
            margin: 15px 0;
        }

        .links-section {
            background: #fff;
            padding: 50px 20px;
            border-top: 2px solid #ddd;
        }

        .links-section h3 {
            font-size: 1.5em;
            color: #007ab2;
            margin: 30px 0 20px;
            font-weight: 700;
            padding-bottom: 10px;
            border-bottom: 2px solid #e0e0e0;
        }

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

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
            margin: 20px 0;
        }

        .links-section li {
            padding: 0;
        }

        .links-section a {
            color: #007ab2;
            text-decoration: none;
            display: block;
            padding: 10px 15px;
            background: #f8f9fa;
            border-radius: 4px;
            transition: all 0.3s ease;
            border-left: 3px solid transparent;
        }

        .links-section a:hover {
            background: #e8f4f8;
            border-left-color: #007ab2;
            padding-left: 20px;
            color: #005580;
        }

        footer {
            background: #ddd;
            padding: 30px 20px;
            text-align: center;
            margin-top: 60px;
            color: rgba(0, 0, 0, 0.54);
            font-size: 0.9em;
        }

        @media (min-width: 768px) {
            header {
                padding: 60px 40px;
            }

            header h1 {
                font-size: 3em;
            }

            .container {
                padding: 40px;
            }

            article {
                padding: 60px 40px;
            }

            article h2 {
                font-size: 2.2em;
            }

            article h3 {
                font-size: 1.6em;
            }

            .transition-section {
                padding: 50px 40px;
                margin: 60px 0;
            }

            .links-section {
                padding: 60px 40px;
            }

            .links-section ul {
                grid-template-columns: repeat(2, 1fr);
                gap: 15px 25px;
            }
        }

        @media (min-width: 1024px) {
            header h1 {
                font-size: 3.5em;
            }

            article {
                padding: 80px 60px;
            }

            .transition-section {
                padding: 60px;
            }

            .links-section {
                padding: 80px 60px;
            }
        }