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

        body {
            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: #333;
            background: #f5f5f5 url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAQAAAAECAYAAACp8Z5+AAAAEklEQVQIW2NkYGD4z8DAwAAEAA5CAf/5w8kAAAAASUVORK5CYII=') repeat;
        }

        .page-wrapper {
            background: linear-gradient(to bottom, #1a1a1a 0%, #2a2a2a 150px, transparent 150px);
            min-height: 100vh;
        }

        header {
            background: #1a1a1a;
            padding: 15px 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
        }

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

        .top-menu {
            display: flex;
            justify-content: flex-end;
            gap: 25px;
            padding: 10px 0;
            flex-wrap: wrap;
        }

        .top-menu a {
            color: #fff;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

        .top-menu a:hover {
            color: #f69220;
        }

        .main-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 30px 20px;
        }

        h1 {
            font-size: 2.5em;
            color: #2a2a2a;
            margin-bottom: 30px;
            padding: 25px 30px;
            background: linear-gradient(135deg, #fff 0%, #f8f8f8 100%);
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            border-left: 5px solid #f69220;
            line-height: 1.3;
        }

        article {
            background: #fff;
            padding: 40px;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        article h2 {
            font-size: 1.8em;
            color: #2a2a2a;
            margin: 35px 0 20px 0;
            padding-bottom: 10px;
            border-bottom: 2px solid #f69220;
        }

        article h3 {
            font-size: 1.4em;
            color: #333;
            margin: 25px 0 15px 0;
        }

        article h4 {
            font-size: 1.2em;
            color: #444;
            margin: 20px 0 10px 0;
        }

        article p {
            margin-bottom: 18px;
            color: #555;
            text-align: justify;
        }

        article ul, article ol {
            margin: 15px 0 15px 30px;
        }

        article li {
            margin-bottom: 8px;
            color: #555;
        }

        .transition-section {
            background: #fff;
            padding: 35px 40px;
            margin-bottom: 30px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            border-top: 3px solid #26a9e1;
        }

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

        .links-section {
            background: #fff;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
            margin-bottom: 30px;
        }

        .links-section h2 {
            font-size: 2em;
            color: #2a2a2a;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 3px solid #26a9e1;
        }

        .links-section h3 {
            font-size: 1.5em;
            color: #26a9e1;
            margin: 30px 0 15px 0;
            padding-left: 15px;
            border-left: 4px solid #f69220;
        }

        .links-section ul {
            list-style: none;
            column-count: 2;
            column-gap: 40px;
            margin: 20px 0 30px 0;
        }

        .links-section li {
            margin-bottom: 12px;
            break-inside: avoid;
        }

        .links-section a {
            color: #333;
            text-decoration: none;
            display: inline-block;
            padding: 8px 0;
            transition: all 0.3s;
            position: relative;
        }

        .links-section a:before {
            content: "▸";
            color: #f69220;
            margin-right: 10px;
            font-size: 0.9em;
        }

        .links-section a:hover {
            color: #26a9e1;
            padding-left: 10px;
        }

        footer {
            background: linear-gradient(to bottom, #2a2a2a 0%, #1a1a1a 100%);
            color: #ccc;
            padding: 40px 20px 20px 20px;
            margin-top: 50px;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            padding-bottom: 30px;
            border-bottom: 1px solid #444;
        }

        .footer-column h4 {
            color: #f69220;
            margin-bottom: 15px;
            font-size: 1.1em;
        }

        .footer-column ul {
            list-style: none;
        }

        .footer-column li {
            margin-bottom: 8px;
        }

        .footer-column a {
            color: #ccc;
            text-decoration: none;
            font-size: 0.9em;
            transition: color 0.3s;
        }

        .footer-column a:hover {
            color: #f69220;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            font-size: 0.85em;
            color: #999;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 1.8em;
                padding: 20px;
            }

            article {
                padding: 25px 20px;
            }

            article h2 {
                font-size: 1.5em;
            }

            article h3 {
                font-size: 1.2em;
            }

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

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

            .links-section ul {
                column-count: 1;
            }

            .top-menu {
                justify-content: center;
                gap: 15px;
            }

            .footer-content {
                grid-template-columns: 1fr;
                gap: 25px;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 1.5em;
                padding: 15px;
            }

            article h2 {
                font-size: 1.3em;
            }

            .links-section h2 {
                font-size: 1.5em;
            }

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