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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            font-size: 16px;
            line-height: 1.6;
            color: rgba(0, 0, 0, 0.8);
            background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
            overflow-x: hidden;
        }

        header {
            background: #ffffff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: #9911aa;
            text-decoration: none;
        }

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

        nav a {
            text-decoration: none;
            color: rgba(0, 0, 0, 0.7);
            font-weight: 500;
            transition: color 0.3s ease;
            position: relative;
        }

        nav a:hover {
            color: #0088ff;
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: #aade22;
            transition: width 0.3s ease;
        }

        nav a:hover::after {
            width: 100%;
        }

        main {
            max-width: 1200px;
            margin: 3rem auto;
            padding: 0 2rem;
        }

        h1 {
            font-size: 2.5rem;
            color: #333;
            margin-bottom: 2rem;
            padding-bottom: 1rem;
            border-bottom: 3px solid #aade22;
            background: linear-gradient(90deg, rgba(153, 17, 170, 0.1) 0%, rgba(170, 222, 34, 0.1) 100%);
            padding: 1.5rem;
            border-radius: 8px;
        }

        article {
            background: #ffffff;
            padding: 2.5rem;
            margin-bottom: 3rem;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        article h2 {
            font-size: 1.8rem;
            color: #0088ff;
            margin: 2rem 0 1rem;
            padding-left: 1rem;
            border-left: 4px solid #aade22;
        }

        article h3 {
            font-size: 1.4rem;
            color: #9911aa;
            margin: 1.5rem 0 1rem;
        }

        article p {
            margin-bottom: 1.5rem;
            color: rgba(0, 0, 0, 0.75);
            line-height: 1.8;
        }

        article ul, article ol {
            margin: 1rem 0 1.5rem 2rem;
        }

        article li {
            margin-bottom: 0.5rem;
            color: rgba(0, 0, 0, 0.75);
        }

        .transition-section {
            background: linear-gradient(135deg, rgba(170, 222, 34, 0.1) 0%, rgba(0, 136, 255, 0.1) 100%);
            padding: 2rem;
            margin-bottom: 3rem;
            border-radius: 12px;
            border-left: 5px solid #0088ff;
        }

        .links-section {
            background: #ffffff;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        .links-section h3 {
            font-size: 1.5rem;
            color: #9911aa;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #aade22;
        }

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

        .links-section li {
            padding: 0;
        }

        .links-section a {
            color: #0088ff;
            text-decoration: none;
            display: block;
            padding: 0.8rem 1rem;
            background: #f8f8f8;
            border-radius: 6px;
            transition: all 0.3s ease;
            border-left: 3px solid transparent;
        }

        .links-section a:hover {
            background: linear-gradient(90deg, rgba(0, 136, 255, 0.1) 0%, rgba(170, 222, 34, 0.1) 100%);
            border-left-color: #aade22;
            transform: translateX(5px);
        }

        footer {
            background: #333;
            color: #fff;
            padding: 2rem 0;
            margin-top: 4rem;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            text-align: center;
        }

        footer nav ul {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }

        footer a {
            color: #aade22;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        footer a:hover {
            color: #fff;
        }

        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 1rem;
            }

            nav ul {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }

            nav a::after {
                display: none;
            }

            h1 {
                font-size: 2rem;
            }

            article {
                padding: 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

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

            footer nav ul {
                flex-direction: column;
                gap: 0.5rem;
            }
        }

        @media (max-width: 480px) {
            main {
                padding: 0 1rem;
            }

            h1 {
                font-size: 1.8rem;
                padding: 1rem;
            }

            article {
                padding: 1rem;
            }

            .transition-section {
                padding: 1.5rem;
            }

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