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

        html {
            font-size: 62.5%;
        }

        body {
            font-size: 1.4rem;
            line-height: 1.6;
            font-family: Arial, helvetica, sans-serif;
            color: #313131;
            background: #fdfdfd;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        header {
            background: #fff;
            padding: 20px 0;
            border-bottom: 1px solid #efefef;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .logo {
            font-size: 2rem;
            font-weight: 700;
            color: #0087CB;
            text-decoration: none;
        }

        nav ul {
            list-style: none;
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        nav a {
            text-decoration: none;
            color: #313131;
            font-weight: 600;
            text-transform: uppercase;
            font-size: 1.2rem;
            transition: color 0.25s ease-in-out;
        }

        nav a:hover {
            color: #0087CB;
        }

        h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #313131;
            margin: 40px 0 30px;
            line-height: 1.3;
        }

        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #313131;
            margin: 30px 0 20px;
        }

        h3 {
            font-size: 1.6rem;
            font-weight: 700;
            color: #313131;
            margin: 25px 0 15px;
        }

        h4 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #313131;
            margin: 20px 0 10px;
        }

        article {
            background: #fff;
            padding: 40px;
            margin: 30px 0;
            border-radius: 4px;
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.08);
        }

        article p {
            margin-bottom: 20px;
            line-height: 1.8;
        }

        article h2 {
            color: #0087CB;
        }

        article h3 {
            color: #5FAB15;
        }

        .transition-section {
            background: #efefef;
            padding: 40px;
            margin: 30px 0;
            border-radius: 4px;
        }

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

        .links-section {
            background: #fff;
            padding: 40px;
            margin: 30px 0 50px;
            border-radius: 4px;
            box-shadow: 0 0 15px rgba(0, 0, 0, 0.08);
        }

        .links-section h3 {
            color: #0087CB;
            margin-top: 30px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #efefef;
        }

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

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px 30px;
            margin-bottom: 30px;
        }

        .links-section li {
            padding-left: 20px;
            position: relative;
        }

        .links-section li:before {
            content: "→";
            position: absolute;
            left: 0;
            color: #0087CB;
            font-weight: 700;
        }

        .links-section a {
            color: #313131;
            text-decoration: none;
            transition: color 0.25s ease-in-out;
            line-height: 1.6;
        }

        .links-section a:hover {
            color: #0087CB;
        }

        footer {
            background: #313131;
            color: #fff;
            padding: 40px 0;
            margin-top: 60px;
        }

        footer .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        footer ul {
            list-style: none;
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        footer a {
            color: #fff;
            text-decoration: none;
            text-transform: uppercase;
            font-weight: 600;
            font-size: 1.2rem;
            transition: color 0.25s ease-in-out;
        }

        footer a:hover {
            color: #0087CB;
        }

        @media (max-width: 768px) {
            html {
                font-size: 56%;
            }

            .header-content {
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }

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

            h1 {
                font-size: 2.4rem;
            }

            article {
                padding: 25px;
            }

            .transition-section {
                padding: 25px;
            }

            .links-section {
                padding: 25px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            footer .container {
                flex-direction: column;
                align-items: flex-start;
            }

            footer ul {
                flex-direction: column;
                gap: 10px;
            }
        }

        @media (max-width: 480px) {
            html {
                font-size: 52%;
            }

            article {
                padding: 20px;
            }

            .transition-section {
                padding: 20px;
            }

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