:root {
      --ink: #06131f;
      --paper: #ffffff;
      --line: #dbe3ea;
      --muted: #4b5563;
      --signal: #0b63ce;
      --font-sans: HelveticaNeue, "Helvetica Neue", Helvetica, Arial,
        "游ゴシック体", YuGothic, "游ゴシック Medium", "Yu Gothic Medium",
        "游ゴシック", "Yu Gothic", "ヒラギノ角ゴ ProN W3", "Hiragino Kaku Gothic ProN",
        "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "MS ゴシック", "MS Gothic",
        sans-serif;
      --font-mono: "SF Mono", "Fira Code", "Fira Mono", Menlo, Consolas, monospace;
      font-family: var(--font-sans);
      color: var(--ink);
      background: var(--paper);
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      font-size: 16px;
      line-height: 1.8;
      font-feature-settings: "palt";
      -webkit-font-smoothing: antialiased;
      word-wrap: break-word;
      background: #f8f7f2;
    }

    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; height: auto; }

    .site-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      min-height: 62px;
      padding: 14px clamp(20px, 4vw, 58px) 10px;
      background: #f8f7f2;
      box-shadow: inset 0 -1px 0 rgba(6, 19, 31, 0.08);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      flex: 0 0 auto;
    }

    .brand-lockup {
      display: block;
      width: 168px;
      height: auto;
      object-fit: contain;
    }

    @media (max-width: 620px) {
      .brand-lockup { width: 152px; }
    }

    .back-link {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 780;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .back-link:hover,
    .back-link:focus-visible {
      color: var(--signal);
      outline: none;
    }

    main {
      max-width: 760px;
      margin: 0 auto;
      padding: clamp(40px, 7vw, 88px) clamp(20px, 4vw, 40px) clamp(60px, 9vw, 120px);
    }

    .breadcrumb {
      margin-bottom: 18px;
      color: var(--muted);
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 780;
      letter-spacing: 0.06em;
    }

    .breadcrumb a {
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .breadcrumb a:hover,
    .breadcrumb a:focus-visible {
      color: var(--signal);
      outline: none;
    }

    .section-label {
      color: var(--signal);
      font-family: var(--font-mono);
      font-size: 12px;
      font-weight: 780;
      letter-spacing: 0.1em;
      text-transform: uppercase;
    }

    h1 {
      margin: 14px 0 10px;
      font-size: clamp(26px, 3.6vw, 36px);
      font-weight: 820;
      line-height: 1.35;
      letter-spacing: 0.02em;
    }

    /* 記事の見出しまわり（全記事共通）。上の太い罫線と色の短い帯、テーマの札、
       主題と副題の2段、主題の下に引くマーカーで、雑誌の扉のように見せる。 */
    .article-masthead {
      position: relative;
      margin: 4px 0 26px;
      padding: 20px 0 18px;
      border-top: 1px solid var(--ink);
      border-bottom: 1px solid var(--line);
    }

    .masthead-kicker {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px 12px;
      margin: 0 0 16px;
    }

    .masthead-kicker .section-label { margin: 0; }

    .masthead-theme {
      display: inline-flex;
      align-items: center;
      padding: 3px 11px 4px;
      border: 1px solid var(--signal);
      border-radius: 999px;
      color: var(--signal);
      font-size: 12px;
      font-weight: 700;
      line-height: 1.4;
      text-decoration: none;
    }

    .masthead-theme:hover,
    .masthead-theme:focus-visible {
      background: var(--signal);
      color: var(--paper);
      outline: none;
    }

    .article-masthead h1 { margin: 0; }

    .article-masthead .title-main {
      display: inline;
      font-size: clamp(28px, 4.4vw, 44px);
      font-weight: 860;
      line-height: 1.32;
      letter-spacing: 0.01em;
      background: linear-gradient(transparent 68%, var(--title-marker, rgba(11, 99, 206, 0.16)) 68%);
      -webkit-box-decoration-break: clone;
      box-decoration-break: clone;
    }

    .article-masthead .title-sub {
      display: block;
      margin-top: 12px;
      color: var(--muted);
      font-size: clamp(16px, 2.1vw, 20px);
      font-weight: 650;
      line-height: 1.55;
      letter-spacing: 0.02em;
    }

    .article-masthead .page-meta { margin: 18px 0 0; }

    .masthead-time {
      color: var(--muted);
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.04em;
    }

    .page-meta {
      margin: 0 0 28px;
      color: var(--muted);
      font-family: var(--font-mono);
      font-size: 12px;
      letter-spacing: 0.04em;
    }

    .ai-summary {
      margin: 0 0 28px;
      padding: 18px 22px;
      border: 1px solid var(--ink);
      background: var(--paper);
    }

    .ai-summary b {
      display: block;
      margin-bottom: 8px;
      color: var(--signal);
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 780;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .ai-summary ul {
      margin: 0 0 8px;
      padding-left: 1.4em;
    }

    .ai-summary li { margin-bottom: 4px; }

    .ai-summary small {
      display: block;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
    }

    #article-body,
    #article-related { scroll-margin-top: 24px; }

    .article-thumb {
      margin: 0 0 28px;
      overflow: hidden;
      border: 1px solid rgba(6, 19, 31, 0.18);
      background: rgba(6, 19, 31, 0.05);
    }

    .article-thumb img {
      width: 100%;
      aspect-ratio: 16 / 9;
      object-fit: cover;
    }

    section {
      margin-bottom: 34px;
      padding-top: 22px;
      border-top: 1px solid var(--ink);
    }

    h2 {
      margin: 0 0 12px;
      font-size: 19px;
      font-weight: 820;
      letter-spacing: 0.02em;
    }

    p, ul { margin: 0 0 12px; color: var(--ink); }
    ul { padding-left: 1.4em; }
    li { margin-bottom: 4px; }

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

    main a:hover,
    main a:focus-visible {
      color: var(--signal);
      outline: none;
    }

    .read-original {
      margin: 0 0 34px;
    }

    .read-original a {
      display: inline-block;
      padding: 12px 22px;
      border: 1px solid var(--ink);
      background: var(--paper);
      font-family: var(--font-mono);
      font-size: 12px;
      font-weight: 780;
      letter-spacing: 0.06em;
      text-transform: uppercase;
      text-decoration: none;
    }

    .read-original a:hover,
    .read-original a:focus-visible {
      color: var(--signal);
      border-color: var(--signal);
      outline: none;
    }

    .site-footer {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 10px 16px;
      padding: 18px clamp(20px, 4vw, 58px);
      background: linear-gradient(180deg, #eef2f5 0%, #f8f7f2 62%);
      box-shadow: inset 0 1px 0 rgba(6, 19, 31, 0.08);
      color: var(--muted);
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 850;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    .site-footer a:hover,
    .site-footer a:focus-visible {
      color: var(--signal);
      outline: none;
    }

    .toc {
      margin: 0 0 28px;
      padding: 18px 22px;
      border: 1px solid var(--line);
      background: var(--paper);
    }

    .toc b {
      display: block;
      margin-bottom: 8px;
      color: var(--signal);
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 780;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .toc ol {
      margin: 0;
      padding-left: 1.4em;
    }

    .toc li { margin-bottom: 4px; }

    .toc a {
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .toc a:hover,
    .toc a:focus-visible {
      color: var(--signal);
      outline: none;
    }

    .reprint-note {
      color: var(--muted);
      font-size: 13px;
    }

    .article-body h2 { scroll-margin-top: 24px; }

    .article-body .article-author-card {
      clear: both;
      display: flex;
      gap: 16px;
      align-items: center;
      margin: 0 0 28px;
      padding: 14px 18px;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .article-body .article-author-photo {
      position: relative;
      flex: 0 0 64px;
      width: 64px;
      height: 64px;
      overflow: hidden;
      border-radius: 50%;
      background: var(--line);
    }
    .article-body .article-author-photo img {
      position: absolute;
      left: -27%;
      top: -34%;
      width: 160%;
      max-width: none;
      height: 200%;
      object-fit: cover;
      margin: 0;
      border: 0;
    }
    .article-body .article-author-text { min-width: 0; }
    .article-body .article-author-text p { margin: 0; }
    .article-body .article-author-label { font-size: 12px; font-weight: 700; color: var(--muted); letter-spacing: 0.04em; }
    .article-body .article-author-name { font-size: 17px; font-weight: 820; line-height: 1.5; }
    .article-body .article-author-name a { color: inherit; text-decoration: none; }
    .article-body .article-author-name a:hover { color: var(--accent, #0b63ce); }
    .article-body .article-author-role { margin-left: 10px; font-size: 13px; font-weight: 600; color: var(--muted); }
    .article-body .article-author-bio { margin-top: 2px; font-size: 13.5px; line-height: 1.7; color: var(--muted); }
    @media (max-width: 420px) {
      .article-body .article-author-card { gap: 12px; padding: 12px 14px; }
      .article-body .article-author-photo { flex-basis: 52px; width: 52px; height: 52px; }
      .article-body .article-author-role { display: block; margin-left: 0; }
    }
    .article-body .qa-speaker .heading-avatar { display: inline-block; vertical-align: middle; margin: 0 6px 0 2px; }
    .article-body h3.has-speaker-avatar { display: flex; align-items: center; gap: 10px; }
    .article-body .heading-avatar {
      flex: 0 0 28px; width: 28px; height: 28px; overflow: hidden; border-radius: 50%;
      background: var(--line, #e3e7ec);
    }
    .article-body .heading-avatar img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 22%; }
    .article-body h3 {
      margin: 22px 0 10px;
      font-size: 16.5px;
      font-weight: 820;
    }

    .article-emphasis .article-body > p.reprint-note + p {
      font-size: 19px;
      line-height: 1.85;
      font-weight: 500;
    }

    .article-emphasis .article-body strong {
      font-weight: 800;
      background: linear-gradient(transparent 62%, rgba(255, 214, 10, 0.45) 62%);
    }

    .article-emphasis .article-body li > strong,
    html[data-color-mode="dark"] .article-emphasis .article-body li > strong,
    .article-emphasis .article-body .article-visual-summary strong,
    html[data-color-mode="dark"] .article-emphasis .article-body .article-visual-summary strong,
    .article-emphasis .article-body .qa-speaker strong,
    html[data-color-mode="dark"] .article-emphasis .article-body .qa-speaker strong,
    .article-emphasis .article-body .article-note strong,
    html[data-color-mode="dark"] .article-emphasis .article-body .article-note strong { background: none; }

    html[data-color-mode="dark"] .article-emphasis .article-body strong {
      background: linear-gradient(transparent 62%, rgba(255, 214, 10, 0.28) 62%);
    }

    .article-body .article-box {
      clear: both;
      margin: 28px 0;
      padding: 20px 22px 6px;
      border: 2px solid var(--ink, #06131f);
      border-radius: 6px;
    }

    .article-body .article-box-title {
      margin: 0 0 12px;
      font-size: 16px;
      font-weight: 850;
      letter-spacing: 0.02em;
    }

    .article-body .article-box ul { padding-left: 0; list-style: none; }

    .article-body .article-box li {
      margin: 0 0 12px;
      padding-bottom: 12px;
      border-bottom: 1px dashed var(--line);
    }

    .article-body .article-box li:last-child { border-bottom: 0; }

    .article-body .article-box li:has(> img:first-child) {
      display: grid;
      grid-template-columns: 96px 1fr;
      column-gap: 16px;
      align-items: start;
    }

    .article-body .article-box li > img:first-child {
      grid-row: span 2;
      width: 96px;
      height: 96px;
      object-fit: cover;
      border-radius: 6px;
    }

    .article-body .article-box li > img:first-child + strong { display: block; }

    /* 関連記事への案内（ハブ）。サムネイルをリンクにした行も、絵と文の2列にする。 */
    .article-body .article-box li:has(> a:first-child > img:only-child) {
      display: grid;
      grid-template-columns: 136px 1fr;
      column-gap: 16px;
      align-items: start;
    }

    .article-body .article-box li > a:first-child:has(> img:only-child) { grid-row: span 2; display: block; }

    .article-body .article-box li > a:first-child > img:only-child {
      display: block;
      width: 136px;
      aspect-ratio: 1200 / 630;
      height: auto;
      object-fit: cover;
      border-radius: 6px;
      margin: 0;
    }

    .article-body .article-box li > a:first-child + strong { display: block; margin-bottom: 2px; }

    @media (max-width: 560px) {
      .article-body .article-box li:has(> a:first-child > img:only-child) { grid-template-columns: 104px 1fr; column-gap: 12px; }
      .article-body .article-box li > a:first-child > img:only-child { width: 104px; }
    }

    .article-body .article-box li > strong:first-child {
      display: block;
      margin-bottom: 2px;
      font-size: 16.5px;
    }

    .article-body .article-details {
      clear: both;
      margin: 18px 0 26px;
      border: 1px solid var(--line);
      border-radius: 6px;
    }

    .article-body .article-details summary {
      cursor: pointer;
      padding: 13px 18px;
      font-weight: 800;
      list-style: none;
    }

    .article-body .article-details summary::-webkit-details-marker { display: none; }

    .article-body .article-details summary::before {
      content: "＋";
      display: inline-block;
      width: 1.6em;
      color: var(--accent, #0b63ce);
      font-weight: 900;
    }

    .article-body .article-details[open] summary::before { content: "－"; }

    .article-body .article-details summary::after {
      content: "（クリックで開く）";
      margin-left: 6px;
      color: var(--muted);
      font-size: 12.5px;
      font-weight: 500;
    }

    .article-body .article-details[open] summary::after { content: ""; }

    .article-body .article-details-body { padding: 0 18px 6px; }

    html[data-color-mode="dark"] .article-body .article-box { border-color: #e8eef5; }

    .article-body details.article-box { padding: 0; border: 2px solid var(--ink, #06131f); }

    html[data-color-mode="dark"] .article-body details.article-box { border-color: #e8eef5; }

    .article-body details.article-box summary { padding: 16px 20px; font-size: 16px; font-weight: 850; }

    .article-body details.article-box .article-details-body { padding: 0 22px 6px; }

    .article-body .article-axes {
      clear: both;
      margin: 24px 0 28px;
      padding: 0;
      list-style: none;
      counter-reset: none;
    }

    .article-body .article-axes .axis-item {
      display: grid;
      grid-template-columns: 112px 1fr;
      column-gap: 16px;
      align-items: center;
      margin: 0 0 10px;
      padding: 14px 16px;
      border: 1px solid var(--line);
      border-left: 4px solid var(--signal, #0b63ce);
      border-radius: 6px;
      background: rgba(11, 99, 206, 0.035);
    }

    .article-body .article-axes .axis-label {
      display: flex;
      align-items: center;
      gap: 8px;
      margin: 0;
    }

    .article-body .article-axes .axis-no {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 26px;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: var(--signal, #0b63ce);
      color: #fff;
      font-size: 13px;
      font-weight: 850;
    }

    .article-emphasis .article-body .article-axes .axis-label strong,
    .article-body .article-axes .axis-label strong {
      background: none;
      font-size: 19px;
      font-weight: 900;
      letter-spacing: 0.04em;
    }

    .article-body .article-axes .axis-choices {
      display: flex;
      gap: 8px;
      align-items: stretch;
    }

    .article-body .article-axes .axis-choices > .axis-choice { flex: 1 1 0; }

    .article-body .article-axes .axis-choice {
      margin: 0;
      padding: 9px 12px;
      border-radius: 5px;
      background: #fff;
      border: 1px solid var(--line);
      font-size: 14.5px;
      line-height: 1.6;
    }

    .article-body .article-axes .axis-choice-wide {
      background: #fff6e8;
      border-color: #f2c98a;
    }

    .article-body .article-axes .axis-vs {
      align-self: center;
      color: var(--muted);
      font-size: 15px;
      font-weight: 700;
    }

    html[data-color-mode="dark"] .article-body .article-axes .axis-item { background: rgba(120, 170, 255, 0.06); border-color: #2b3a4a; border-left-color: #6aa8ff; }
    html[data-color-mode="dark"] .article-body .article-axes .axis-no { background: #6aa8ff; color: #06131f; }
    html[data-color-mode="dark"] .article-body .article-axes .axis-choice { background: #0f1c2a; border-color: #2b3a4a; }
    html[data-color-mode="dark"] .article-body .article-axes .axis-choice-wide { background: #2a2010; border-color: #6b4f22; }

    @media (max-width: 640px) {
      .article-body .article-axes .axis-item { grid-template-columns: 1fr; row-gap: 10px; }
      .article-body .article-axes .axis-choices { flex-direction: column; gap: 6px; }
      .article-body .article-axes .axis-vs { display: none; }
    }

    /* 二つの立場の対比表（::: compare）。列の頭に絵、行ごとに観点の札。右の列を色で目立たせる。 */
    .article-body .article-compare { clear: both; margin: 30px 0; }
    .article-body .article-compare-title { margin: 0 0 12px; font-size: 16px; font-weight: 850; letter-spacing: 0.02em; }
    .article-body .article-compare .cmp-heads,
    .article-body .article-compare .cmp-row { display: grid; grid-template-columns: 104px 1fr 1fr; column-gap: 10px; }
    .article-body .article-compare .cmp-head { overflow: hidden; border-radius: 8px 8px 0 0; background: #06131f; }
    .article-body .article-compare .cmp-head img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; margin: 0; }
    .article-body .article-compare .cmp-name { margin: 0; padding: 9px 12px; color: #fff; font-size: 15.5px; font-weight: 850; text-align: center; letter-spacing: 0.04em; }
    .article-body .article-compare .cmp-right .cmp-name { background: #0b63ce; }
    .article-body .article-compare .cmp-row { border-bottom: 1px dashed var(--line); }
    .article-body .article-compare .cmp-row:last-child { border-bottom: 0; }
    .article-body .article-compare .cmp-label { margin: 0; padding: 14px 0; font-size: 14.5px; font-weight: 900; line-height: 1.5; }
    .article-body .article-compare .cmp-cell { margin: 0; padding: 14px 14px; font-size: 14.5px; line-height: 1.7; background: rgba(6, 19, 31, 0.035); }
    .article-body .article-compare .cmp-right { background: rgba(11, 99, 206, 0.08); font-weight: 650; }
    .article-body .article-compare .cmp-row:last-child .cmp-cell { border-radius: 0 0 8px 8px; }
    .article-body .article-compare .cmp-cell-name { display: none; }
    html[data-color-mode="dark"] .article-body .article-compare .cmp-cell { background: rgba(255, 255, 255, 0.04); }
    html[data-color-mode="dark"] .article-body .article-compare .cmp-right { background: rgba(106, 168, 255, 0.13); }
    html[data-color-mode="dark"] .article-body .article-compare .cmp-right .cmp-name { background: #2f7de0; }
    @media (max-width: 640px) {
      .article-body .article-compare .cmp-heads { grid-template-columns: 1fr 1fr; column-gap: 8px; }
      .article-body .article-compare .cmp-corner { display: none; }
      .article-body .article-compare .cmp-name { font-size: 14px; padding: 7px 6px; }
      .article-body .article-compare .cmp-row { grid-template-columns: 1fr 1fr; column-gap: 8px; padding-bottom: 10px; }
      .article-body .article-compare .cmp-label { grid-column: 1 / -1; padding: 12px 0 6px; }
      .article-body .article-compare .cmp-cell { padding: 10px; font-size: 14px; border-radius: 6px; }
    }

    /* 絵付きのタイル（::: cards）。 */
    .article-body .article-cards { clear: both; margin: 30px 0; }
    .article-body .article-cards-title { margin: 0 0 12px; font-size: 16px; font-weight: 850; letter-spacing: 0.02em; }
    .article-body .article-cards ul { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
    .article-body .article-cards.cols-2 ul { grid-template-columns: repeat(2, 1fr); }
    .article-body .article-cards.cols-3 ul { grid-template-columns: repeat(3, 1fr); }
    .article-body .article-cards.cols-4 ul { grid-template-columns: repeat(4, 1fr); }
    .article-body .article-cards.cols-5 ul { grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .article-body .article-cards.cols-5 .tile-title { font-size: 13.5px; margin: 0 9px 2px; }
    .article-body .article-cards.cols-5 .tile-text { font-size: 12.5px; line-height: 1.6; margin: 0 9px; }
    .article-body .article-cards .tile { margin: 0; padding: 0 0 12px; overflow: hidden; border: 1px solid var(--line); border-radius: 8px; background: rgba(6, 19, 31, 0.025); }
    .article-body .article-cards .tile-art { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; margin: 0 0 10px; background: #000; }
    .article-body .article-cards.wide-art .tile-art { aspect-ratio: 4 / 3; }
    .article-body .article-cards .tile-title { display: flex; gap: 8px; align-items: baseline; margin: 0 12px 4px; font-size: 15.5px; font-weight: 900; line-height: 1.45; }
    .article-body .article-cards .tile-no { display: inline-flex; flex: 0 0 22px; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; background: var(--signal, #0b63ce); color: #fff; font-size: 12px; font-weight: 850; transform: translateY(-1px); }
    .article-body .article-cards .tile-text { margin: 0 12px; font-size: 14px; line-height: 1.7; }
    html[data-color-mode="dark"] .article-body .article-cards .tile { background: rgba(255, 255, 255, 0.03); border-color: #2b3a4a; }
    @media (max-width: 640px) {
      .article-body .article-cards.cols-3 ul,
      .article-body .article-cards.cols-4 ul,
      .article-body .article-cards.cols-5 ul { grid-template-columns: repeat(2, 1fr); }
      .article-body .article-cards ul { gap: 10px; }
      .article-body .article-cards .tile-title { font-size: 14.5px; margin: 0 10px 4px; }
      .article-body .article-cards .tile-text { font-size: 13.5px; margin: 0 10px; }
    }
    @media (max-width: 400px) {
      .article-body .article-cards.cols-2 ul { grid-template-columns: 1fr; }
    }

    /* 2本の軸で四つの立場を置く図（::: matrix）。 */
    .article-body .article-matrix { clear: both; margin: 30px 0; }
    .article-body .article-matrix-title { margin: 0 0 12px; font-size: 16px; font-weight: 850; letter-spacing: 0.02em; }
    .article-body .article-matrix .mx-frame { display: grid; grid-template-columns: 30px 1fr; column-gap: 8px; }
    .article-body .article-matrix .mx-main { display: grid; grid-template-rows: auto 1fr; row-gap: 8px; }
    .article-body .article-matrix .mx-axis { display: flex; margin: 0; color: var(--muted); font-size: 13px; font-weight: 850; letter-spacing: 0.06em; }
    .article-body .article-matrix .mx-axis span { flex: 1 1 0; text-align: center; }
    .article-body .article-matrix .mx-axis-x { border-bottom: 2px solid var(--ink, #06131f); padding-bottom: 6px; }
    .article-body .article-matrix .mx-axis-y { flex-direction: column; padding-top: 34px; border-right: 2px solid var(--ink, #06131f); }
    .article-body .article-matrix .mx-axis-y span { display: flex; align-items: center; justify-content: center; writing-mode: vertical-rl; }
    .article-body .article-matrix .mx-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; padding: 0; list-style: none; }
    .article-body .article-matrix .mx-cell { margin: 0; padding: 14px 14px 12px; border-radius: 8px; border: 1px solid var(--line); }
    .article-body .article-matrix .mx-tl, .article-body .article-matrix .mx-tr { background: rgba(11, 99, 206, 0.08); }
    .article-body .article-matrix .mx-bl, .article-body .article-matrix .mx-br { background: rgba(6, 19, 31, 0.035); }
    .article-body .article-matrix .mx-tags { display: flex; flex-wrap: wrap; gap: 4px; margin: 0 0 10px; }
    .article-body .article-matrix .mx-tags span { padding: 1px 8px; border-radius: 999px; background: #fff; border: 1px solid var(--line); font-size: 11.5px; font-weight: 800; }
    .article-body .article-matrix .mx-tl .mx-tags span:first-child, .article-body .article-matrix .mx-tr .mx-tags span:first-child { background: #0b63ce; border-color: #0b63ce; color: #fff; }
    .article-body .article-matrix .mx-faces { display: flex; margin: 0 0 8px; }
    .article-body .article-matrix .mx-face { width: 48px; height: 48px; margin: 0 -6px 0 0; border-radius: 50%; border: 2px solid #fff; object-fit: cover; object-position: center 25%; background: #fff; }
    .article-body .article-matrix .mx-title { margin: 0 0 4px; font-size: 15px; font-weight: 900; line-height: 1.45; }
    .article-body .article-matrix .mx-text { margin: 0; font-size: 13.5px; line-height: 1.65; }
    html[data-color-mode="dark"] .article-body .article-matrix .mx-axis-x { border-bottom-color: #e8eef5; }
    html[data-color-mode="dark"] .article-body .article-matrix .mx-axis-y { border-right-color: #e8eef5; }
    html[data-color-mode="dark"] .article-body .article-matrix .mx-cell { border-color: #2b3a4a; }
    html[data-color-mode="dark"] .article-body .article-matrix .mx-tl, html[data-color-mode="dark"] .article-body .article-matrix .mx-tr { background: rgba(106, 168, 255, 0.13); }
    html[data-color-mode="dark"] .article-body .article-matrix .mx-bl, html[data-color-mode="dark"] .article-body .article-matrix .mx-br { background: rgba(255, 255, 255, 0.04); }
    html[data-color-mode="dark"] .article-body .article-matrix .mx-tags span { background: #0f1c2a; border-color: #2b3a4a; }
    html[data-color-mode="dark"] .article-body .article-matrix .mx-face { border-color: #0f1c2a; }
    @media (max-width: 560px) {
      .article-body .article-matrix .mx-frame { grid-template-columns: 1fr; }
      .article-body .article-matrix .mx-axis { display: none; }
      .article-body .article-matrix .mx-grid { grid-template-columns: 1fr; }
    }

    .article-body .person-card {
      clear: both;
      margin: 26px 0;
      padding: 20px 22px 8px;
      border: 1px solid var(--line);
      border-top: 4px solid var(--signal, #0b63ce);
      border-radius: 6px;
      background: rgba(11, 99, 206, 0.035);
    }

    .article-body .person-card-head {
      display: grid;
      grid-template-columns: 64px 1fr auto;
      column-gap: 14px;
      align-items: center;
    }

    .article-body .person-photo {
      width: 64px;
      height: 64px;
      border-radius: 50%;
      object-fit: cover;
      margin: 0;
    }

    .article-body .person-initials {
      display: flex;
      align-items: center;
      justify-content: center;
      background: #dbe7f5;
      color: #0b3f80;
      font-size: 20px;
      font-weight: 850;
      letter-spacing: 0.02em;
    }

    .article-body h3.person-name {
      margin: 0;
      padding: 0;
      border: 0;
      font-size: 19px;
      line-height: 1.35;
    }

    .article-body .person-year {
      margin-left: 8px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 600;
    }

    .article-body .person-role {
      margin: 2px 0 0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.5;
    }

    .article-body .person-value {
      margin: 0;
      color: var(--signal, #0b63ce);
      font-size: 26px;
      font-weight: 900;
      line-height: 1.15;
      text-align: right;
      white-space: nowrap;
    }

    .article-body .person-gauge { margin: 14px 0 4px; }

    .article-body .person-gauge-row {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 6px;
    }

    .article-body .person-gauge-label {
      flex: 0 0 140px;
      color: var(--muted);
      font-size: 12.5px;
    }

    .article-body .person-gauge-track {
      position: relative;
      flex: 1 1 auto;
      height: 10px;
      border-radius: 5px;
      background: #e3e9f0;
      overflow: hidden;
    }

    .article-body .person-gauge-bar {
      position: absolute;
      inset: 0 auto 0 0;
      border-radius: 5px;
      background: linear-gradient(90deg, #f2b84b, #d9480f);
    }

    .article-body .person-gauge-scale {
      display: flex;
      justify-content: space-between;
      color: var(--muted);
      font-size: 11px;
    }

    .article-body .person-gauge-row:has(.person-gauge-label) ~ .person-gauge-scale { margin-left: 150px; }

    .article-body .person-facts {
      display: grid;
      grid-template-columns: max-content 1fr;
      gap: 6px 12px;
      margin: 14px 0 6px;
      font-size: 14.5px;
      line-height: 1.6;
    }

    .article-body .person-facts > div { display: contents; }

    .article-body .person-facts dt {
      align-self: start;
      padding: 1px 8px;
      border-radius: 3px;
      background: var(--ink, #06131f);
      color: #fff;
      font-size: 12px;
      font-weight: 800;
      white-space: nowrap;
    }

    .article-body .person-facts dd { margin: 0; }

    .article-body .person-body { margin-top: 10px; }

    .article-body .person-body > :last-child { margin-bottom: 12px; }

    .article-body .person-source {
      display: flex;
      flex-wrap: wrap;
      gap: 2px 14px;
      margin: 0 0 10px;
      padding-top: 8px;
      border-top: 1px dashed var(--line);
      color: var(--muted);
      font-size: 11.5px;
      line-height: 1.6;
    }

    .article-body .person-source a { color: inherit; }

    .article-body .article-markdown-table td img {
      width: 30px;
      height: 30px;
      margin: 0 8px 0 0;
      border-radius: 50%;
      object-fit: cover;
      vertical-align: middle;
    }

    html[data-color-mode="dark"] .article-body .person-card { background: rgba(120, 170, 255, 0.06); border-color: #2b3a4a; border-top-color: #6aa8ff; }
    html[data-color-mode="dark"] .article-body .person-value { color: #8cc0ff; }
    html[data-color-mode="dark"] .article-body .person-initials { background: #1d3150; color: #cfe2ff; }
    html[data-color-mode="dark"] .article-body .person-gauge-track { background: #2b3a4a; }
    html[data-color-mode="dark"] .article-body .person-facts dt { background: #e8eef5; color: #06131f; }

    @media (max-width: 640px) {
      .article-body .person-card { padding: 16px 16px 6px; }
      .article-body .person-card-head { grid-template-columns: 52px 1fr; }
      .article-body .person-photo { width: 52px; height: 52px; }
      .article-body .person-value { grid-column: 1 / -1; margin-top: 10px; text-align: left; white-space: normal; }
      .article-body .person-gauge-row { flex-wrap: wrap; gap: 2px 10px; }
      .article-body .person-gauge-label { flex: 0 0 100%; }
      .article-body .person-gauge-row:has(.person-gauge-label) ~ .person-gauge-scale { margin-left: 0; }
      .article-body .person-facts { grid-template-columns: 1fr; }
      .article-body .person-facts dt { justify-self: start; }
    }

    .article-emphasis .article-body h3.has-section-no {
      display: flex;
      align-items: center;
      gap: 14px;
      margin: 52px 0 18px;
      padding: 14px 18px;
      border-left: 6px solid var(--accent, #0b63ce);
      background: rgba(11, 99, 206, 0.08);
      font-size: 20px;
      line-height: 1.45;
    }

    .article-emphasis .article-body h3.has-section-no .section-no {
      flex: none;
      color: var(--accent, #0b63ce);
      font-size: 26px;
      font-weight: 900;
      letter-spacing: 0.02em;
    }

    html[data-color-mode="dark"] .article-emphasis .article-body h3.has-section-no {
      border-left-color: #6aa8ff;
      background: rgba(106, 168, 255, 0.12);
    }

    html[data-color-mode="dark"] .article-emphasis .article-body h3.has-section-no .section-no { color: #8dbcff; }

    @media (max-width: 620px) {
      .article-emphasis .article-body h3.has-section-no { gap: 10px; padding: 12px 14px; font-size: 17px; }
      .article-emphasis .article-body h3.has-section-no .section-no { font-size: 21px; }
    }

    .article-emphasis .article-body h4,
    .article-emphasis .article-body h3.has-item-no {
      display: flex;
      align-items: baseline;
      gap: 10px;
      margin: 30px 0 10px;
      font-size: 17px;
    }

    .article-emphasis .article-body h4 .item-no,
    .article-emphasis .article-body h3.has-item-no .item-no {
      flex: none;
      padding: 2px 8px;
      border-radius: 3px;
      background: var(--ink, #06131f);
      color: #fff;
      font-size: 12.5px;
      font-weight: 800;
      letter-spacing: 0.04em;
    }

    html[data-color-mode="dark"] .article-emphasis .article-body h3.has-item-no .item-no,
    html[data-color-mode="dark"] .article-emphasis .article-body h4 .item-no { background: #e8eef5; color: #06131f; }

    .article-body h4 {
      margin: 20px 0 8px;
      font-size: 15.5px;
      font-weight: 800;
    }

    .article-body figure {
      margin: 0 0 16px;
      overflow: hidden;
      border: 1px solid rgba(6, 19, 31, 0.12);
      background: rgba(6, 19, 31, 0.03);
    }

    .article-body figure img { width: 100%; }

    .article-body figure > a { display: block; }

    .article-body h2,
    .article-body h3,
    .article-body figure.figure-small,
    .article-body figure.figure-wide,
    .article-body .figure-row { clear: both; }

    .article-body figure.figure-wide {
      margin: 30px 0 26px;
      border: 0;
      background: none;
    }

    .article-body figure.figure-wide figcaption {
      margin-top: 8px;
      font-size: 12.5px;
      line-height: 1.6;
      color: var(--muted);
    }

    .article-body blockquote.pull-quote {
      clear: both;
      margin: 34px 0;
      padding: 18px 0;
      border-left: 0;
      border-top: 3px solid currentColor;
      border-bottom: 1px solid var(--line);
      color: inherit;
      font-size: 22px;
      font-weight: 800;
      line-height: 1.55;
    }

    .article-body blockquote.pull-quote p { margin: 0; }

    .article-body figure.figure-left,
    .article-body figure.figure-right {
      width: 44%;
      margin-top: 4px;
      margin-bottom: 12px;
    }

    .article-body figure.figure-left { float: left; clear: left; margin-right: 22px; }

    .article-body figure.figure-right { float: right; clear: right; margin-left: 22px; }

    .article-body figure.figure-small {
      max-width: 62%;
      margin-left: auto;
      margin-right: auto;
    }

    .article-body .figure-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      align-items: start;
      gap: 12px;
      margin: 0 0 16px;
    }

    .article-body .figure-row figure { margin: 0; }

    @media (max-width: 620px) {
      .article-body figure.figure-left,
      .article-body figure.figure-right {
        float: none;
        width: auto;
        margin: 0 0 16px;
      }
      .article-body figure.figure-small { max-width: none; }
      .article-body figure.figure-left,
      .article-body figure.figure-right { max-width: 78%; margin-left: auto; margin-right: auto; }
      .article-body .figure-row { grid-template-columns: 1fr; }
    }

    .article-table-scroll {
      max-width: 100%;
      margin: 24px 0 30px;
      overflow-x: auto;
      border: 1px solid var(--line);
    }

    .article-table-scroll:focus-visible {
      outline: 2px solid var(--signal);
      outline-offset: 3px;
    }

    .article-markdown-table {
      width: 100%;
      min-width: 680px;
      border-collapse: collapse;
      font-size: 14px;
      line-height: 1.6;
    }

    .article-markdown-table th,
    .article-markdown-table td {
      padding: 10px 12px;
      border-right: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      text-align: left;
      vertical-align: top;
    }

    .article-markdown-table th {
      background: #eef2f5;
      font-weight: 760;
    }

    .article-markdown-table th:last-child,
    .article-markdown-table td:last-child { border-right: 0; }

    .article-markdown-table tbody tr:last-child td { border-bottom: 0; }

    .article-body blockquote {
      margin: 0 0 16px;
      padding: 10px 18px;
      border-left: 3px solid var(--line);
      color: var(--muted);
    }

    .article-appendix {
      margin: 60px 0 0;
      padding: 30px clamp(16px, 4vw, 28px) 10px;
      border-top: 3px solid var(--line);
      background: linear-gradient(180deg, rgba(11, 99, 206, 0.05), rgba(11, 99, 206, 0));
    }

    .article-appendix > h2 {
      margin-top: 0;
      font-size: 17px;
      color: var(--muted);
    }

    .article-appendix > h3 {
      font-size: 15.5px;
    }

    .article-appendix[data-collapsible] { padding-bottom: 18px; }
    .article-appendix-details > summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      cursor: pointer;
      list-style: none;
    }
    .article-appendix-details > summary::-webkit-details-marker { display: none; }
    .article-appendix-details > summary h2 { margin: 0; font-size: 17px; color: var(--muted); }
    .article-appendix-toggle {
      flex: 0 0 auto;
      padding: 4px 12px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: var(--signal, #0b63ce);
      font-size: 12.5px;
      font-weight: 700;
    }
    .article-appendix-toggle::before { content: "開く ＋"; }
    .article-appendix-details[open] .article-appendix-toggle::before { content: "閉じる －"; }
    .article-appendix-details > summary:hover .article-appendix-toggle,
    .article-appendix-details > summary:focus-visible .article-appendix-toggle { background: rgba(11, 99, 206, 0.08); }
    .article-appendix-body { padding-top: 14px; }
    .article-appendix-body > h3 { font-size: 15.5px; }

    .article-body hr {
      margin: 28px 0;
      border: none;
      border-top: 1px solid var(--line);
    }

    .article-book {
      margin: 34px 0 0;
      border-radius: 8px;
      background: #06131f;
      color: #f8f7f2;
    }
    .article-book + .article-cta { margin-top: 18px; }
    .article-book-link {
      display: grid;
      grid-template-columns: 52px minmax(0, 1fr) auto;
      align-items: center;
      gap: 18px;
      padding: 16px 20px;
      color: inherit;
      text-decoration: none;
    }
    .article-book-cover { width: 52px; height: auto; border: 1px solid rgba(248, 247, 242, 0.3); box-shadow: 0 8px 18px rgba(0, 0, 0, 0.35); }
    .article-book-copy { display: grid; gap: 2px; min-width: 0; }
    .article-book-kicker { color: #8fc0ff; font-family: var(--font-mono, monospace); font-size: 11px; font-weight: 700; letter-spacing: 0.06em; }
    .article-book-title { font-size: clamp(16px, 1.9vw, 20px); font-weight: 800; line-height: 1.4; }
    .article-book-sub { color: rgba(248, 247, 242, 0.78); font-size: 13px; line-height: 1.6; }
    .article-book-cta { padding: 9px 16px; border: 1px solid #f8f7f2; font-size: 14px; font-weight: 700; white-space: nowrap; }
    .article-book-link:hover .article-book-cta,
    .article-book-link:focus-visible .article-book-cta { background: #f8f7f2; color: #06131f; }
    .article-book-link:focus-visible { outline: 2px solid #8fc0ff; outline-offset: 4px; }
    @media (max-width: 640px) {
      .article-book-link { grid-template-columns: 48px minmax(0, 1fr); gap: 12px; padding: 14px; }
      .article-book-cover { width: 48px; }
      .article-book-title { font-size: 15px; }
      .article-book-sub { font-size: 12.5px; }
      .article-book-cta { grid-column: 2; justify-self: start; padding: 6px 12px; font-size: 13px; }
    }

    .article-cta {
      margin: 34px 0 0;
      padding: 24px clamp(18px, 4vw, 30px);
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(11, 99, 206, 0.045), rgba(11, 99, 206, 0.015));
    }

    .page-meta-author { color: inherit; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
    .page-meta-author:hover, .page-meta-author:focus-visible { color: var(--signal, #0b63ce); }
    .article-related {
      margin: 44px 0 0;
      padding-top: 26px;
      border-top: 3px solid var(--ink);
    }
    .article-related-head {
      display: flex;
      flex-wrap: wrap;
      align-items: baseline;
      justify-content: space-between;
      gap: 6px 16px;
      margin-bottom: 18px;
    }
    .article-related-head h2 {
      margin: 0;
      font-size: 22px;
      font-weight: 860;
      letter-spacing: 0.02em;
    }
    .article-theme-note {
      margin: 0;
      font-size: 13.5px;
      color: var(--muted, #5b6b7a);
    }
    .article-theme-note span {
      margin-right: 8px;
      padding: 2px 8px;
      border: 1px solid var(--line);
      font-size: 11.5px;
      font-weight: 760;
      letter-spacing: 0.06em;
    }
    .article-theme-note a { font-weight: 760; color: var(--signal); text-decoration: none; }
    .article-theme-note a::after { content: " →"; }
    .article-theme-note a:hover { text-decoration: underline; }
    .related-cards {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 22px 18px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .related-cards-even { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .related-cards-even .related-title { font-size: 16.5px; }
    .related-card { margin: 0; }
    .related-card a {
      display: flex;
      flex-direction: column;
      height: 100%;
      color: inherit;
      text-decoration: none;
    }
    .related-thumb {
      display: block;
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: #eef2f5;
      border: 1px solid var(--line);
    }
    .related-thumb img {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .related-card a:hover .related-thumb img,
    .related-card a:focus-visible .related-thumb img { transform: scale(1.04); }
    .related-card-body { display: block; padding-top: 10px; }
    .related-meta {
      display: block;
      margin-bottom: 4px;
      color: var(--signal);
      font-size: 11.5px;
      font-weight: 760;
      letter-spacing: 0.06em;
    }
    .related-title {
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
      font-size: 15px;
      font-weight: 800;
      line-height: 1.55;
    }
    .related-card a:hover .related-title,
    .related-card a:focus-visible .related-title { text-decoration: underline; text-underline-offset: 3px; }
    .related-people {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px 14px;
      margin: 26px 0 0;
      padding: 14px 0;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }
    .related-people-label { font-size: 12.5px; font-weight: 760; color: var(--muted); letter-spacing: 0.04em; }
    .related-people ul { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 0; padding: 0; list-style: none; }
    .related-people a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: inherit;
      font-size: 14px;
      font-weight: 760;
      text-decoration: none;
    }
    .related-people a:hover span { text-decoration: underline; }
    .related-people img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
    .related-more {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
    }
    .related-more a {
      display: inline-block;
      padding: 7px 14px;
      border: 1px solid var(--line);
      color: inherit;
      font-size: 13px;
      font-weight: 760;
      text-decoration: none;
    }
    .related-more a:hover { border-color: var(--signal); color: var(--signal); }
    @media (max-width: 620px) {
      .related-cards,
      .related-cards-even { grid-template-columns: 1fr; gap: 14px; }
      .related-cards-even .related-title { font-size: 14px; }
      .related-card a { flex-direction: row; gap: 12px; }
      .related-thumb { flex: 0 0 42%; align-self: flex-start; }
      .related-card-body { padding-top: 0; }
      .related-title { font-size: 14px; }
    }
    .article-cta h2 {
      margin: 0 0 8px;
      font-size: 17px;
      font-weight: 860;
      letter-spacing: 0.01em;
    }

    .article-cta p {
      margin: 0 0 16px;
      color: var(--muted);
      font-size: 14.5px;
      line-height: 1.75;
    }

    .article-cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .article-cta-button {
      display: inline-flex;
      align-items: center;
      padding: 10px 18px;
      border: 1px solid var(--line);
      background: var(--paper);
      font-size: 13.5px;
      font-weight: 760;
      letter-spacing: 0.01em;
      transition: border-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
    }

    .article-cta-button:hover {
      border-color: var(--signal);
      color: var(--signal);
      transform: translateY(-1px);
    }

    .article-cta-button.primary {
      border-color: var(--signal);
      background: var(--signal);
      color: #fff;
    }

    .article-cta-button.primary:hover {
      color: #fff;
      filter: brightness(1.08);
    }

    @media (max-width: 420px) {
      .article-cta-actions { flex-direction: column; align-items: stretch; }
      .article-cta-button { justify-content: center; }
    }
    .article-lead-details {
      margin: 0 0 28px;
      border-top: 1px solid var(--ink);
      border-bottom: 1px solid var(--ink);
    }

    .article-lead-details > summary {
      min-height: 56px;
      padding: 14px 2px;
      cursor: pointer;
    }

    .article-lead-details > summary::marker { color: var(--signal); }

    .article-lead-details > summary span {
      color: var(--ink);
      font-weight: 820;
    }

    .article-lead-details > summary:focus-visible {
      outline: 2px solid var(--signal);
      outline-offset: 4px;
    }

    .article-lead-details-content { padding-top: 12px; }

    .article-body .article-visual-summary {
      margin: 32px 0 38px;
      padding: clamp(20px, 4vw, 28px);
      overflow: visible;
      border: 1px solid var(--line);
      background: var(--paper);
    }

    .visual-figure-caption {
      display: block;
      margin-bottom: 20px;
    }

    .visual-figure-label {
      display: block;
      margin-bottom: 5px;
      color: var(--signal);
      font-family: var(--font-mono);
      font-size: 10px;
      font-weight: 820;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .visual-figure-caption strong {
      display: block;
      font-size: clamp(18px, 3vw, 22px);
      line-height: 1.5;
    }

    .visual-figure-caption p {
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .article-body .article-visual-summary > h3 {
      margin: 0 0 14px;
      font-size: 16px;
      font-weight: 820;
    }

    .argument-flow {
      margin: 0;
      padding: 0;
      list-style: none;
      counter-reset: argument-step;
    }

    .argument-flow li {
      position: relative;
      display: grid;
      grid-template-columns: 42px minmax(0, 1fr);
      gap: 14px;
      margin: 0;
      padding: 0 0 18px;
      counter-increment: argument-step;
    }

    .argument-flow li::before {
      content: counter(argument-step);
      position: relative;
      z-index: 1;
      display: grid;
      width: 42px;
      height: 42px;
      place-items: center;
      border: 1px solid var(--signal);
      border-radius: 50%;
      background: var(--paper);
      color: var(--signal);
      font-family: var(--font-mono);
      font-size: 12px;
      font-weight: 850;
    }

    .argument-flow li:not(:last-child)::after {
      content: "";
      position: absolute;
      top: 42px;
      bottom: 0;
      left: 20px;
      width: 1px;
      background: var(--line);
    }

    .argument-flow-card {
      min-width: 0;
      padding: 12px 14px;
      border: 1px solid var(--line);
      background: #f8f7f2;
    }

    .argument-flow-kicker {
      display: block;
      margin-bottom: 3px;
      color: var(--signal);
      font-family: var(--font-mono);
      font-size: 10px;
      font-weight: 820;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    .argument-flow-card b {
      display: block;
      margin-bottom: 3px;
      font-size: 15px;
      line-height: 1.5;
    }

    .argument-flow-card p {
      margin: 0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.7;
    }

    .visual-card-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .visual-card-grid[data-columns="3"] {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .visual-card {
      min-width: 0;
      margin: 0;
      padding: 14px;
      border: 1px solid var(--line);
      background: #f8f7f2;
    }

    .visual-card-kicker {
      display: block;
      margin-bottom: 5px;
      color: var(--signal);
      font-family: var(--font-mono);
      font-size: 10px;
      font-weight: 820;
      letter-spacing: 0.04em;
    }

    .visual-card strong {
      display: block;
      margin-bottom: 5px;
      font-size: 14.5px;
      line-height: 1.5;
    }

    .visual-card p {
      margin: 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.65;
    }

    .comparison-table-wrap {
      max-width: 100%;
      overflow-x: auto;
      border: 1px solid var(--line);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      background: var(--paper);
      font-size: 13.5px;
      line-height: 1.65;
    }

    .comparison-table caption {
      padding: 10px 12px;
      border-bottom: 1px solid var(--line);
      color: var(--muted);
      font-size: 12px;
      text-align: left;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 11px 12px;
      border-right: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      text-align: left;
      vertical-align: top;
    }

    .comparison-table tr:last-child > * { border-bottom: 0; }
    .comparison-table tr > *:last-child { border-right: 0; }

    .comparison-table thead th {
      background: #eef2f5;
      font-size: 12px;
      font-weight: 820;
    }

    .comparison-table tbody th {
      width: 24%;
      background: #f8f7f2;
      font-weight: 820;
    }

    @media (max-width: 620px) {
      .article-body .article-visual-summary {
        margin: 26px 0 32px;
        padding: 18px 16px;
      }

      .visual-card-grid,
      .visual-card-grid[data-columns="3"] { grid-template-columns: 1fr; }

      .comparison-table-wrap { overflow: visible; border: 0; }
      .comparison-table,
      .comparison-table tbody,
      .comparison-table tr,
      .comparison-table th,
      .comparison-table td { display: block; width: 100%; }

      .comparison-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
        border: 0;
      }

      .comparison-table caption {
        display: block;
        width: 100%;
        box-sizing: border-box;
        border: 1px solid var(--line);
        border-bottom: 0;
      }

      .comparison-table tbody tr {
        margin-bottom: 12px;
        border: 1px solid var(--line);
      }

      .comparison-table tbody th {
        padding: 10px 12px;
        border-right: 0;
        background: #eef2f5;
      }

      .comparison-table tbody td {
        display: grid;
        grid-template-columns: minmax(88px, 0.72fr) minmax(0, 1.28fr);
        gap: 10px;
        padding: 9px 12px;
        border-right: 0;
      }

      .comparison-table tbody td::before {
        content: attr(data-label);
        color: var(--signal);
        font-family: var(--font-mono);
        font-size: 10px;
        font-weight: 820;
        letter-spacing: 0.04em;
      }
    }