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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
            color: #333;
            line-height: 1.6;
            background-color: #f5f5f5;
        }

        header {
            background: linear-gradient(135deg, #075E8E 0%, #0092ff 100%);
            color: #fff;
            padding: 2rem 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            text-align: center;
        }

        .site-logo {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        nav {
            margin-top: 1.5rem;
        }

        nav ul {
            list-style: none;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 2rem;
        }

        nav a {
            color: #fff;
            text-decoration: none;
            font-weight: 500;
            transition: opacity 0.3s;
            text-transform: uppercase;
            font-size: 0.9rem;
            letter-spacing: 0.5px;
        }

        nav a:hover {
            opacity: 0.8;
        }

        main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 3rem 20px;
        }

        h1 {
            font-size: 2.5rem;
            color: #075E8E;
            margin-bottom: 2rem;
            text-align: center;
            font-weight: 700;
            line-height: 1.2;
        }

        article {
            background: #fff;
            padding: 2.5rem;
            margin-bottom: 3rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }

        article h2 {
            color: #075E8E;
            font-size: 1.8rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        article h3 {
            color: #0092ff;
            font-size: 1.4rem;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
            font-weight: 600;
        }

        article h4 {
            color: #333;
            font-size: 1.2rem;
            margin-top: 1.2rem;
            margin-bottom: 0.6rem;
            font-weight: 600;
        }

        article p {
            margin-bottom: 1.2rem;
            color: #555;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        article h2:first-child,
        article h3:first-child,
        article h4:first-child {
            margin-top: 0;
        }

        .transition-section {
            background: #fff;
            padding: 2.5rem;
            margin-bottom: 3rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }

        .transition-section p {
            color: #555;
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 1.2rem;
        }

        .links-section {
            background: #fff;
            padding: 2.5rem;
            border-radius: 8px;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
        }

        .links-section h2 {
            color: #075E8E;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
            font-weight: 600;
        }

        .links-section h3 {
            color: #0092ff;
            font-size: 1.3rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            font-weight: 600;
        }

        .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 2rem;
            margin-bottom: 2rem;
        }

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

        .links-section li:before {
            content: "→";
            position: absolute;
            left: 0;
            color: #0092ff;
            font-weight: bold;
        }

        .links-section a {
            color: #075E8E;
            text-decoration: none;
            transition: color 0.3s;
            font-size: 1rem;
        }

        .links-section a:hover {
            color: #0092ff;
            text-decoration: underline;
        }

        footer {
            background: #2c3e50;
            color: #fff;
            padding: 2rem 0;
            margin-top: 4rem;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            text-align: center;
        }

        .footer-text {
            font-size: 0.9rem;
            opacity: 0.9;
        }

        .footer-menu {
            margin-bottom: 1.5rem;
        }

        .footer-menu ul {
            list-style: none;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .footer-menu a {
            color: #fff;
            text-decoration: none;
            font-size: 0.9rem;
            opacity: 0.9;
            transition: opacity 0.3s;
        }

        .footer-menu a:hover {
            opacity: 1;
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }

            nav ul {
                flex-direction: column;
                gap: 1rem;
            }

            article,
            .transition-section,
            .links-section {
                padding: 1.5rem;
            }

            article h2 {
                font-size: 1.5rem;
            }

            article h3 {
                font-size: 1.2rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.8rem;
            }

            .footer-menu ul {
                flex-direction: column;
                gap: 0.8rem;
            }
        }

        @media (max-width: 480px) {
            .header-container {
                padding: 0 15px;
            }

            .site-logo {
                font-size: 1.5rem;
            }

            main {
                padding: 2rem 15px;
            }

            h1 {
                font-size: 1.6rem;
            }

            article,
            .transition-section,
            .links-section {
                padding: 1.2rem;
            }
        }