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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            color: #333;
            background-color: #f9f9f9;
            line-height: 1.6;
        }

        header {
            background-color: #fff;
            border-bottom: 3px solid #f0f0f0;
            padding: 20px 0;
        }

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

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #ff69b4;
            text-decoration: none;
        }

        nav {
            background-color: #fff;
            border-bottom: 1px solid #e0e0e0;
            padding: 15px 0;
        }

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

        .nav-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 25px;
            justify-content: center;
        }

        .nav-list li a {
            text-decoration: none;
            color: #808080;
            font-size: 14px;
            text-transform: uppercase;
            font-weight: 500;
            transition: color 0.3s;
        }

        .nav-list li a:hover {
            color: #ff69b4;
        }

        main {
            max-width: 1200px;
            margin: 40px auto;
            padding: 0 20px;
        }

        h1 {
            font-size: 32px;
            color: #333;
            margin-bottom: 30px;
            text-align: center;
            font-weight: 600;
        }

        article {
            background-color: #fff;
            padding: 40px;
            margin-bottom: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        article h2 {
            font-size: 26px;
            color: #333;
            margin: 30px 0 15px 0;
            font-weight: 600;
        }

        article h3 {
            font-size: 22px;
            color: #666;
            margin: 25px 0 12px 0;
            font-weight: 600;
        }

        article h4 {
            font-size: 18px;
            color: #808080;
            margin: 20px 0 10px 0;
            font-weight: 600;
        }

        article p {
            margin-bottom: 15px;
            color: #555;
            line-height: 1.8;
        }

        .transition-section {
            background-color: #fff;
            padding: 30px 40px;
            margin-bottom: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        .transition-section p {
            color: #555;
            line-height: 1.8;
            margin-bottom: 15px;
        }

        .links-section {
            background-color: #fff;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
        }

        .links-section h3 {
            font-size: 22px;
            color: #333;
            margin: 25px 0 15px 0;
            font-weight: 600;
        }

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

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px 30px;
            margin-bottom: 30px;
        }

        .links-section ul li a {
            color: #ff69b4;
            text-decoration: none;
            transition: color 0.3s;
            font-size: 15px;
        }

        .links-section ul li a:hover {
            color: #ff1493;
            text-decoration: underline;
        }

        footer {
            background-color: #fff;
            border-top: 3px solid #f0f0f0;
            padding: 40px 0 20px 0;
            margin-top: 60px;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
        }

        .footer-box h2 {
            font-size: 16px;
            color: #333;
            margin-bottom: 15px;
            font-weight: 600;
            text-transform: uppercase;
        }

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

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

        .footer-box ul li a {
            color: #808080;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
        }

        .footer-box ul li a:hover {
            color: #ff69b4;
        }

        .footer-copy {
            text-align: center;
            padding: 20px;
            color: #999;
            font-size: 13px;
            border-top: 1px solid #f0f0f0;
            margin-top: 30px;
        }

        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                text-align: center;
            }

            .nav-list {
                flex-direction: column;
                gap: 15px;
            }

            h1 {
                font-size: 26px;
            }

            article {
                padding: 25px;
            }

            article h2 {
                font-size: 22px;
            }

            article h3 {
                font-size: 19px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 10px;
            }

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

            .links-section {
                padding: 25px;
            }

            .footer-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 22px;
            }

            article {
                padding: 20px;
            }

            .links-section {
                padding: 20px;
            }

            .transition-section {
                padding: 15px 20px;
            }
        }