:root {
            --primary: #0a4a8f;
            --primary-dark: #062f5c;
            --primary-light: #e8f0fa;
            --accent: #1e7ad6;
            --text: #1f2933;
            --text-muted: #5b6770;
            --bg: #f4f7fb;
            --white: #ffffff;
            --border: #d8e1ec;
            --radius: 12px;
            --shadow: 0 8px 30px rgba(10, 74, 143, 0.10);
        }

        *, *::before, *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, "Helvetica Neue", Arial, sans-serif;
            font-size: 17px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        /* ---------- Hero / H1 ---------- */
        .hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, var(--accent) 100%);
            color: var(--white);
            padding: 72px 20px 96px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before,
        .hero::after {
            content: "";
            position: absolute;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
        }

        .hero::before {
            width: 420px;
            height: 420px;
            top: -180px;
            right: -120px;
        }

        .hero::after {
            width: 300px;
            height: 300px;
            bottom: -160px;
            left: -100px;
        }

        .hero-inner {
            position: relative;
            max-width: 920px;
            margin: 0 auto;
            z-index: 1;
        }

        h1 {
            margin: 0;
            font-size: clamp(1.9rem, 4.5vw, 3.2rem);
            line-height: 1.2;
            font-weight: 700;
            letter-spacing: -0.5px;
            overflow-wrap: break-word;
            word-wrap: break-word;
        }

        /* ---------- Layout ---------- */
        main {
            max-width: 980px;
            margin: -48px auto 0;
            padding: 0 20px 64px;
            position: relative;
            z-index: 2;
        }

        article,
        .transition,
        .links-block {
            background: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            padding: 40px 44px;
            margin-bottom: 28px;
            overflow-wrap: break-word;
            word-wrap: break-word;
        }

        /* ---------- Article typography ---------- */
        article h2,
        article h3,
        article h4,
        article h5,
        article h6 {
            color: var(--primary-dark);
            line-height: 1.3;
            margin: 1.8em 0 0.6em;
            font-weight: 700;
        }

        article h2 {
            font-size: 1.75rem;
            padding-bottom: 0.35em;
            border-bottom: 3px solid var(--primary-light);
        }

        article h3 { font-size: 1.4rem; }
        article h4 { font-size: 1.2rem; }
        article h5, article h6 { font-size: 1.05rem; }

        article > :first-child {
            margin-top: 0;
        }

        article p {
            margin: 0 0 1.2em;
        }

        article ul,
        article ol {
            margin: 0 0 1.3em;
            padding-left: 1.4em;
        }

        article li {
            margin-bottom: 0.4em;
        }

        article a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        article a:hover {
            color: var(--primary-dark);
        }

        article img,
        article table,
        article iframe,
        article video {
            max-width: 100%;
        }

        article table {
            border-collapse: collapse;
            display: block;
            overflow-x: auto;
        }

        article th,
        article td {
            border: 1px solid var(--border);
            padding: 8px 12px;
        }

        article blockquote {
            margin: 1.5em 0;
            padding: 14px 22px;
            background: var(--primary-light);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius) var(--radius) 0;
            color: var(--primary-dark);
        }

        /* ---------- Transition paragraph ---------- */
        .transition {
            background: var(--primary-light);
            border-left: 5px solid var(--primary);
            color: var(--primary-dark);
        }

        .transition p {
            margin: 0 0 1em;
        }

        .transition p:last-child {
            margin-bottom: 0;
        }

        .transition a {
            color: var(--primary);
            font-weight: 600;
        }

        /* ---------- Links block ---------- */
        .links-block {
            padding: 36px 44px 24px;
            border-top: 4px solid var(--primary);
        }

        .links-block h3 {
            margin: 0 0 16px;
            font-size: 1.3rem;
            color: var(--primary-dark);
            line-height: 1.3;
        }

        .links-block h3:not(:first-child) {
            margin-top: 32px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }

        .links-block ul {
            list-style: none;
            margin: 0 0 12px;
            padding: 0;
            column-count: 2;
            column-gap: 40px;
        }

        .links-block li {
            break-inside: avoid;
            -webkit-column-break-inside: avoid;
            page-break-inside: avoid;
            padding: 8px 0 8px 18px;
            position: relative;
            border-bottom: 1px dashed var(--border);
            overflow-wrap: break-word;
            word-wrap: break-word;
        }

        .links-block li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 1.2em;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .links-block a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
        }

        .links-block a:hover {
            color: var(--accent);
            text-decoration: underline;
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 768px) {
            body { font-size: 16px; }

            .hero { padding: 52px 16px 76px; }

            main {
                padding: 0 14px 48px;
                margin-top: -40px;
            }

            article,
            .transition,
            .links-block {
                padding: 26px 22px;
            }

            .links-block { padding-bottom: 14px; }
        }

        @media (max-width: 540px) {
            .links-block ul {
                column-count: 1;
            }

            article h2 { font-size: 1.45rem; }
            article h3 { font-size: 1.2rem; }
        }