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

        body {
            font-family: 'Open Sans', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f8f8;
        }

        header {
            background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
            color: #fff;
            padding: 1.5rem 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            text-decoration: none;
        }

        nav ul {
            list-style: none;
            display: flex;
            gap: 2rem;
        }

        nav a {
            color: #fff;
            text-decoration: none;
            transition: opacity 0.3s ease;
            font-size: 0.95rem;
        }

        nav a:hover {
            opacity: 0.8;
        }

        .hero-section {
            background: linear-gradient(to bottom, rgba(255,255,255,0.9), rgba(255,255,255,0.95)), 
                        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120"><path d="M0,0 L1200,0 L1200,80 Q900,100 600,80 T0,80 Z" fill="%23e8f4f8"/></svg>');
            background-size: cover;
            padding: 3rem 0 4rem;
        }

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

        h1 {
            font-size: 2.5rem;
            color: #2c3e50;
            margin-bottom: 2rem;
            font-weight: 700;
            line-height: 1.2;
        }

        article {
            background: #fff;
            padding: 3rem;
            margin-bottom: 3rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
        }

        article h2 {
            font-size: 1.8rem;
            color: #2c3e50;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        article h3 {
            font-size: 1.4rem;
            color: #34495e;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
            font-weight: 600;
        }

        article p {
            margin-bottom: 1.2rem;
            color: #555;
            font-size: 1.05rem;
        }

        .transition-section {
            background: #fff;
            padding: 2.5rem 3rem;
            margin-bottom: 3rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            border-left: 4px solid #3498db;
        }

        .transition-section p {
            color: #555;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .links-section {
            background: #fff;
            padding: 3rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0,0,0,0.08);
            margin-bottom: 3rem;
        }

        .links-section h2 {
            font-size: 1.8rem;
            color: #2c3e50;
            margin-bottom: 2rem;
            font-weight: 600;
            text-align: center;
        }

        .links-section h3 {
            font-size: 1.3rem;
            color: #34495e;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 600;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #e8f4f8;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem 2rem;
            margin-bottom: 2rem;
        }

        .links-section li {
            padding: 0.4rem 0;
        }

        .links-section a {
            color: #3498db;
            text-decoration: none;
            transition: color 0.3s ease, padding-left 0.3s ease;
            display: inline-block;
            font-size: 1rem;
        }

        .links-section a:hover {
            color: #2980b9;
            padding-left: 5px;
        }

        .links-section a:before {
            content: "→ ";
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .links-section a:hover:before {
            opacity: 1;
        }

        footer {
            background: #2c3e50;
            color: #fff;
            padding: 2rem 0;
            margin-top: 4rem;
        }

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

        footer p {
            margin-bottom: 0.5rem;
            font-size: 0.95rem;
        }

        @media only screen and (max-width: 768px) {
            nav ul {
                flex-direction: column;
                gap: 1rem;
            }

            .header-container {
                flex-direction: column;
                gap: 1rem;
            }

            h1 {
                font-size: 1.8rem;
            }

            article {
                padding: 2rem 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            .transition-section {
                padding: 2rem 1.5rem;
            }

            .links-section {
                padding: 2rem 1.5rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.6rem;
            }

            .links-section h3 {
                font-size: 1.2rem;
            }
        }

        @media only screen and (max-width: 480px) {
            h1 {
                font-size: 1.5rem;
            }

            article {
                padding: 1.5rem 1rem;
            }

            article h2 {
                font-size: 1.3rem;
            }

            .transition-section {
                padding: 1.5rem 1rem;
            }

            .links-section {
                padding: 1.5rem 1rem;
            }
        }