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

        body {
            font-family: 'Georgia', 'Times New Roman', serif;
            line-height: 1.6;
            color: #000099;
            background: linear-gradient(135deg, #ffffff 0%, #f0f4ff 100%);
            min-height: 100vh;
        }

        header {
            background: linear-gradient(135deg, #6699dd 0%, #4477bb 100%);
            color: white;
            padding: 2rem 1rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }

        header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: repeating-linear-gradient(
                45deg,
                transparent,
                transparent 10px,
                rgba(255, 255, 255, 0.03) 10px,
                rgba(255, 255, 255, 0.03) 20px
            );
            pointer-events: none;
        }

        h1 {
            text-align: center;
            font-size: 2.5rem;
            font-weight: normal;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 1;
        }

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

        article {
            background: white;
            padding: 2.5rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(102, 153, 221, 0.15);
            border-left: 5px solid #6699dd;
        }

        article h2 {
            color: #4477bb;
            margin-top: 1.5rem;
            margin-bottom: 1rem;
            font-size: 1.8rem;
            border-bottom: 2px solid #6699dd;
            padding-bottom: 0.5rem;
        }

        article h3 {
            color: #5588cc;
            margin-top: 1.2rem;
            margin-bottom: 0.8rem;
            font-size: 1.4rem;
        }

        article p {
            margin-bottom: 1rem;
            text-align: justify;
            font-size: 1.05rem;
        }

        .transition-section {
            background: linear-gradient(to right, #e8f0ff, #f5f8ff);
            padding: 2rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            border: 2px solid #6699dd;
            box-shadow: 0 2px 8px rgba(102, 153, 221, 0.1);
        }

        .transition-section p {
            color: #000099;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .links-section {
            background: white;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(102, 153, 221, 0.15);
            border-top: 5px solid #6699dd;
        }

        .links-section h3 {
            color: #4477bb;
            margin-top: 1.5rem;
            margin-bottom: 1rem;
            font-size: 1.5rem;
            padding-left: 0.5rem;
            border-left: 4px solid #6699dd;
        }

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

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.5rem 2rem;
            margin-bottom: 2rem;
        }

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

        .links-section a {
            color: #0000bb;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
            position: relative;
            padding-left: 1.2rem;
        }

        .links-section a::before {
            content: '♪';
            position: absolute;
            left: 0;
            color: #6699dd;
            font-size: 1.1rem;
            transition: transform 0.3s ease;
        }

        .links-section a:hover {
            color: #0000ff;
            padding-left: 1.5rem;
        }

        .links-section a:hover::before {
            transform: scale(1.3);
        }

        .links-section a:visited {
            color: #0000bb;
        }

        footer {
            background: #4477bb;
            color: white;
            text-align: center;
            padding: 1.5rem 1rem;
            margin-top: 3rem;
            font-size: 0.9rem;
            box-shadow: 0 -2px 6px rgba(0, 0, 0, 0.1);
        }

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

            article {
                padding: 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.3rem;
            }

            .transition-section {
                padding: 1.5rem;
            }

            .links-section {
                padding: 1.5rem;
            }

            .container {
                padding: 1rem 0.5rem;
            }
        }

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

            article {
                padding: 1rem;
            }

            article h2 {
                font-size: 1.3rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            .links-section h3 {
                font-size: 1.3rem;
            }
        }