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

        body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

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

        header {
            background: linear-gradient(135deg, #4289c3 0%, #08c 100%);
            color: white;
            padding: 15px 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        header h4 {
            font-size: 28px;
            font-weight: bold;
        }

        header h4 a {
            color: white;
            text-decoration: none;
        }

        nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            align-items: center;
        }

        nav ul li a {
            color: white;
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: background-color 0.3s ease;
        }

        nav ul li a:hover {
            background-color: rgba(255,255,255,0.1);
        }

        .search-section {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        main {
            min-height: calc(100vh - 200px);
            padding: 40px 0;
        }

        h1 {
            color: #4289c3;
            font-size: 36px;
            margin-bottom: 30px;
            text-align: center;
            font-weight: 300;
        }

        article {
            background: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            margin-bottom: 40px;
        }

        article h2 {
            color: #4289c3;
            font-size: 28px;
            margin: 30px 0 20px 0;
            font-weight: 500;
        }

        article h3 {
            color: #08c;
            font-size: 24px;
            margin: 25px 0 15px 0;
            font-weight: 500;
        }

        article h4 {
            color: #333;
            font-size: 20px;
            margin: 20px 0 10px 0;
            font-weight: 500;
        }

        article p {
            font-size: 16px;
            margin-bottom: 20px;
            color: #555;
            line-height: 1.7;
        }

        .transition-section {
            background: white;
            padding: 30px 40px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            margin-bottom: 40px;
        }

        .transition-section p {
            font-size: 16px;
            color: #555;
            line-height: 1.7;
            margin-bottom: 15px;
        }

        .links-section {
            background: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            margin-bottom: 40px;
        }

        .links-section h3 {
            color: #4289c3;
            font-size: 24px;
            margin-bottom: 20px;
            font-weight: 500;
            border-bottom: 2px solid #e9ecef;
            padding-bottom: 10px;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 15px;
            margin-bottom: 30px;
        }

        .links-section ul li {
            background: #f8f9fa;
            border-left: 4px solid #08c;
            padding: 12px 20px;
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        .links-section ul li:hover {
            background: #e9ecef;
            transform: translateX(5px);
        }

        .links-section ul li a {
            color: #333;
            text-decoration: none;
            font-weight: 500;
            display: block;
        }

        .links-section ul li a:hover {
            color: #08c;
        }

        footer {
            background: #2c3e50;
            color: #ecf0f1;
            padding: 40px 0 20px 0;
            margin-top: 60px;
        }

        footer .container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        footer h4 {
            color: white;
            font-size: 18px;
            margin-bottom: 15px;
            font-weight: 600;
        }

        footer ul {
            list-style: none;
        }

        footer ul li {
            margin-bottom: 8px;
        }

        footer ul li a {
            color: #bdc3c7;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        footer ul li a:hover {
            color: white;
        }

        footer p {
            text-align: center;
            color: #95a5a6;
            border-top: 1px solid #34495e;
            padding-top: 20px;
            font-size: 14px;
        }

        .social-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .social-links a {
            background: #3498db;
            color: white;
            padding: 8px 15px;
            border-radius: 4px;
            text-decoration: none;
            font-size: 14px;
            transition: background-color 0.3s ease;
        }

        .social-links a:hover {
            background: #2980b9;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 15px;
            }

            header .container {
                flex-direction: column;
                gap: 20px;
            }

            nav ul {
                justify-content: center;
                gap: 15px;
            }

            nav ul li a {
                font-size: 14px;
                padding: 6px 10px;
            }

            h1 {
                font-size: 28px;
            }

            article {
                padding: 25px;
            }

            article h2 {
                font-size: 24px;
            }

            article h3 {
                font-size: 20px;
            }

            .links-section {
                padding: 25px;
            }

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

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

        @media (max-width: 480px) {
            h1 {
                font-size: 24px;
            }

            nav ul {
                gap: 10px;
            }

            nav ul li a {
                font-size: 13px;
                padding: 5px 8px;
            }

            article {
                padding: 20px;
            }

            .links-section {
                padding: 20px;
            }

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