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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: #f5f5f0;
            background-image: 
                linear-gradient(45deg, #f9f9f4 25%, transparent 25%),
                linear-gradient(-45deg, #f9f9f4 25%, transparent 25%),
                linear-gradient(45deg, transparent 75%, #f9f9f4 75%),
                linear-gradient(-45deg, transparent 75%, #f9f9f4 75%);
            background-size: 20px 20px;
            background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
        }

        header {
            background: linear-gradient(135deg, #993333 0%, #cc4444 100%);
            color: #fff;
            padding: 2rem 1rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            position: relative;
            overflow: hidden;
        }

        header::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }

        header::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
        }

        h1 {
            max-width: 1200px;
            margin: 0 auto;
            font-size: 2.5rem;
            font-weight: 700;
            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: #fff;
            padding: 2.5rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            border-left: 5px solid #993333;
        }

        article h2 {
            color: #993333;
            font-size: 1.8rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #f0f0f0;
        }

        article h2:first-child {
            margin-top: 0;
        }

        article h3 {
            color: #666;
            font-size: 1.4rem;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }

        article h4 {
            color: #777;
            font-size: 1.2rem;
            margin-top: 1.2rem;
            margin-bottom: 0.6rem;
        }

        article p {
            margin-bottom: 1rem;
            color: #444;
            text-align: justify;
        }

        article ul, article ol {
            margin-left: 2rem;
            margin-bottom: 1rem;
        }

        article li {
            margin-bottom: 0.5rem;
        }

        .transition-section {
            background: #fff;
            padding: 2rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            border-top: 3px solid #ff6600;
        }

        .transition-section p {
            color: #555;
            margin-bottom: 1rem;
        }

        .links-section {
            background: #fff;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            border: 1px solid #e0e0e0;
        }

        .links-section h2 {
            color: #993333;
            font-size: 1.8rem;
            margin-bottom: 2rem;
            padding-bottom: 0.8rem;
            border-bottom: 3px solid #993333;
        }

        .links-section h3 {
            color: #666;
            font-size: 1.3rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-left: 0.5rem;
            border-left: 4px solid #ff6600;
        }

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

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem 1.5rem;
            margin-bottom: 2rem;
        }

        .links-section li {
            position: relative;
            padding-left: 1.2rem;
        }

        .links-section li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: #ff6600;
            font-weight: bold;
        }

        .links-section a {
            color: #993333;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
        }

        .links-section a:hover {
            color: #ff6600;
            transform: translateX(3px);
        }

        .links-section a:visited {
            color: #666666;
        }

        footer {
            background: linear-gradient(135deg, #333 0%, #555 100%);
            color: #fff;
            text-align: center;
            padding: 1.5rem 1rem;
            margin-top: 3rem;
            box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
        }

        footer p {
            font-size: 0.9rem;
            opacity: 0.9;
        }

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

            header {
                padding: 1.5rem 1rem;
            }

            article {
                padding: 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            .links-section {
                padding: 1.5rem;
            }

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

            .transition-section {
                padding: 1.5rem;
            }

            .container {
                padding: 1rem;
            }
        }

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

            article {
                padding: 1rem;
            }

            .links-section {
                padding: 1rem;
            }

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