:root {
      --paper: #f5f4ef;
      --ink: #141414;
      --text: #30302e;
      --muted: #666660;
      --quiet: #8a8982;
      --rule: #cecdc5;
      --rule-dark: #222222;
      --link: #164db3;
      --note: #9a5b00;
      --success: #176344;
      --terminal: #171717;
      --font-sans: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Segoe UI", Roboto, sans-serif;
      --font-serif: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", sans-serif;
      --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      background: var(--paper);
      color: var(--ink);
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      letter-spacing: -0.018em;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; }
    button, input { font: inherit; }
    svg { display: block; }
    [id] { scroll-margin-top: 92px; }
    .visually-hidden {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0, 0, 0, 0);
      white-space: nowrap;
      border: 0;
    }

    .skip-link {
      position: fixed;
      top: 8px;
      left: 8px;
      z-index: 2000;
      padding: 9px 12px;
      background: var(--ink);
      color: #fff;
      transform: translateY(-150%);
    }
    .skip-link:focus { transform: translateY(0); }
    .reading-progress {
      position: fixed;
      inset: 0 auto auto 0;
      z-index: 1500;
      width: 0;
      height: 2px;
      background: var(--link);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(245, 244, 239, 0.97);
      border-bottom: 1px solid var(--rule-dark);
    }
    .header-inner {
      max-width: 1180px;
      min-height: 62px;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: stretch;
    }
    .brand {
      flex: 0 0 auto;
      min-width: 170px;
      padding-right: 22px;
      display: flex;
      align-items: center;
      gap: 9px;
      border-right: 1px solid var(--rule);
      color: var(--ink);
      text-decoration: none;
    }
    .brand-logo-img {
      width: 22px;
      height: 22px;
      border-radius: 5px;
      flex-shrink: 0;
      display: block;
    }
    .brand-name {
      font-size: 0.95rem;
      font-weight: 800;
      letter-spacing: 0.03em;
    }
    .primary-nav {
      min-width: 0;
      margin-right: auto;
      padding-left: 18px;
      display: flex;
      align-items: stretch;
    }
    .primary-nav a,
    .lang-toggle-btn {
      min-height: 44px;
      padding: 0 11px;
      display: inline-flex;
      align-items: center;
      color: var(--muted);
      font-size: 0.82rem;
      font-weight: 600;
      text-decoration: none;
      white-space: nowrap;
      transition: color 150ms ease;
    }
    .primary-nav a:hover,
    .primary-nav a.active { color: var(--ink); }
    .primary-nav a.active { box-shadow: inset 0 -2px 0 var(--ink); }
    .nav-group { position: relative; display: flex; align-items: stretch; }
    .nav-group.active > a { color: var(--ink); box-shadow: inset 0 -2px 0 var(--ink); }
    .nav-submenu {
      position: absolute;
      top: calc(100% - 1px);
      left: 0;
      min-width: 116px;
      padding: 7px;
      display: none;
      background: var(--paper);
      border: 1px solid var(--rule-dark);
      box-shadow: 0 10px 24px rgba(0, 0, 0, .08);
    }
    .nav-group:hover .nav-submenu,
    .nav-group:focus-within .nav-submenu { display: block; }
    .nav-submenu a { min-height: 34px; padding: 0 10px; }
    .lang-toggle-btn {
      align-self: center;
      min-height: 36px;
      padding-right: 0;
      color: var(--ink);
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .page-shell {
      max-width: 1000px;
      margin: 0 auto;
      padding: 48px 24px 96px;
    }

    .page-shell.article-layout {
      max-width: 1180px;
      padding: 38px 24px 104px;
      display: grid;
      grid-template-columns: minmax(0, 740px) 260px;
      gap: 82px;
      align-items: start;
    }
    .article-main { min-width: 0; }
    .breadcrumbs {
      margin-bottom: 38px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 7px;
      color: var(--quiet);
      font-family: var(--font-mono);
      font-size: 0.72rem;
      letter-spacing: 0;
    }
    .breadcrumbs a { text-decoration: none; }
    .breadcrumbs a:hover { color: var(--link); text-decoration: underline; }
    .breadcrumbs .sep { color: #aaa9a2; }

    .post-header { margin-bottom: 34px; }
    .eyebrow-row {
      margin-bottom: 17px;
      display: flex;
      flex-wrap: wrap;
      align-items: baseline;
      gap: 9px;
      color: var(--muted);
      font-size: 0.75rem;
    }
    .eyebrow {
      color: var(--ink);
      font-family: var(--font-mono);
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.055em;
      text-transform: uppercase;
    }
    .device-label::before { content: "/ "; color: var(--quiet); }
    .post-title {
      max-width: 760px;
      margin: 0;
      color: #111111;
      font-family: var(--font-sans);
      font-size: clamp(1.85rem, 3.5vw, 2.5rem);
      line-height: 1.32;
      letter-spacing: -0.03em;
      font-weight: 700;
      word-break: keep-all;
      overflow-wrap: break-word;
      text-wrap: balance;
    }
    .post-desc {
      max-width: 680px;
      margin: 21px 0 0;
      color: var(--muted);
      font-size: 1rem;
      line-height: 1.82;
      word-break: keep-all;
    }

    .fact-strip {
      margin: 0 0 42px;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      border-top: 2px solid var(--rule-dark);
      border-bottom: 1px solid var(--rule-dark);
    }
    .fact-item {
      min-width: 0;
      padding: 13px 15px 15px;
      border-right: 1px solid var(--rule);
    }
    .fact-item:first-child { padding-left: 0; }
    .fact-item:last-child { padding-right: 0; border-right: 0; }
    .fact-item dt {
      margin-bottom: 2px;
      color: var(--quiet);
      font-family: var(--font-mono);
      font-size: 0.64rem;
      font-weight: 600;
      letter-spacing: 0.025em;
    }
    .fact-item dd {
      margin: 0;
      color: var(--ink);
      font-size: 0.84rem;
      line-height: 1.45;
      font-weight: 700;
      overflow-wrap: anywhere;
    }

    .summary-card {
      margin: 0 0 36px;
      padding: 18px 0 20px;
      display: grid;
      grid-template-columns: 142px minmax(0, 1fr);
      gap: 22px;
      align-items: start;
      border-top: 3px solid var(--rule-dark);
      border-bottom: 1px solid var(--rule-dark);
    }
    .summary-card h2 {
      margin: 1px 0 0;
      font-family: var(--font-mono);
      font-size: 0.69rem;
      line-height: 1.5;
      letter-spacing: 0.045em;
      text-transform: uppercase;
    }
    .summary-card p {
      margin: 0;
      color: var(--ink);
      font-size: 1.03rem;
      line-height: 1.75;
      font-weight: 600;
    }

    .editorial-summary {
      margin: 0 0 36px;
      padding: 22px 0;
      border-top: 1px solid var(--rule-dark);
      border-bottom: 1px solid var(--rule);
    }
    .editorial-summary h2 {
      margin: 0 0 10px;
      color: var(--quiet);
      font-family: var(--font-mono);
      font-size: 0.69rem;
      letter-spacing: 0.045em;
    }
    .editorial-summary p {
      margin: 0;
      color: var(--ink);
      font-size: 1.03rem;
      line-height: 1.85;
    }

    .symptom-check { margin-top: 48px; }
    .match-checklist {
      margin: 0;
      padding: 0;
      border: 0;
      border-bottom: 1px solid var(--rule-dark);
    }
    .match-item {
      min-height: 54px;
      padding: 11px 0;
      display: grid;
      grid-template-columns: 24px minmax(0, 1fr);
      gap: 12px;
      align-items: center;
      border-top: 1px solid var(--rule);
      color: var(--text);
      cursor: pointer;
      font-size: 0.92rem;
      line-height: 1.6;
    }
    .match-item:first-of-type { border-top-color: var(--rule-dark); }
    .match-item input {
      width: 18px;
      height: 18px;
      margin: 0;
      accent-color: var(--ink);
      cursor: pointer;
    }
    .match-item:has(input:checked) { color: var(--ink); font-weight: 600; }
    .match-result {
      min-height: 57px;
      padding: 11px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      border-top: 1px solid var(--rule-dark);
    }
    .match-status { margin: 0; color: var(--muted); font-size: 0.84rem; }
    .match-checklist.is-matched .match-status { color: var(--success); font-weight: 700; }
    .match-start,
    .branch-link {
      color: var(--link);
      font-size: 0.8rem;
      font-weight: 700;
      text-underline-offset: 3px;
      white-space: nowrap;
    }

    .mobile-toc {
      display: none;
      margin: 0 0 36px;
      border-top: 1px solid var(--rule-dark);
      border-bottom: 1px solid var(--rule-dark);
    }
    .mobile-toc summary {
      min-height: 50px;
      padding: 10px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      cursor: pointer;
      font-size: 0.86rem;
      font-weight: 700;
      list-style: none;
    }
    .mobile-toc summary::-webkit-details-marker { display: none; }
    .mobile-toc summary::after { content: "+"; font-family: var(--font-mono); font-size: 1rem; }
    .mobile-toc[open] summary::after { content: "−"; }
    .mobile-toc .toc-list { padding: 0 0 16px; }

    .content-section { margin-top: 70px; }
    .section-heading {
      margin-bottom: 24px;
      padding-top: 11px;
      border-top: 1px solid var(--rule-dark);
    }
    .section-kicker {
      margin: 0 0 8px;
      color: var(--quiet);
      font-family: var(--font-mono);
      font-size: 0.65rem;
      font-weight: 600;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }
    .section-heading h2,
    .article-section-title {
      margin: 0;
      color: var(--ink);
      font-size: 1.5rem;
      line-height: 1.4;
      letter-spacing: -0.035em;
    }
    .section-heading > p:last-child:not(.section-kicker) {
      margin: 8px 0 0;
      color: var(--muted);
      font-size: 0.92rem;
    }
    .ui-example {
      padding: 28px 0;
      border-top: 1px solid var(--rule);
      border-bottom: 1px solid var(--rule);
    }
    .screen-stage,
    .paired-screens { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: center; }
    .mac-window,
    .browser-window,
    .ios-panel {
      overflow: hidden;
      background: #f7f7f7;
      border: 1px solid #b9b9b9;
      border-radius: 12px;
      color: #202124;
      box-shadow: 0 16px 38px rgba(0, 0, 0, .14);
      font-family: -apple-system, BlinkMacSystemFont, "Noto Sans KR", sans-serif;
    }
    .compact-window { min-width: 0; }
    .wide-window { max-width: 680px; margin: 0 auto; }
    .window-bar,
    .browser-tabs {
      min-height: 34px;
      padding: 0 12px;
      display: flex;
      align-items: center;
      gap: 7px;
      background: #e9e9e9;
      border-bottom: 1px solid #c7c7c7;
    }
    .traffic { width: 10px; height: 10px; border-radius: 50%; }
    .traffic.red { background: #ff5f57; }
    .traffic.yellow { background: #febc2e; }
    .traffic.green { background: #28c840; }
    .window-name { margin-left: auto; margin-right: auto; color: #616161; font-size: .7rem; font-weight: 600; }
    .alert-layout { min-height: 210px; padding: 28px 24px 22px; display: grid; grid-template-columns: 42px 1fr; gap: 17px; align-items: start; }
    .alert-layout strong { display: block; font-size: .88rem; line-height: 1.55; }
    .alert-layout p { margin: 9px 0 22px; color: #666; font-size: .76rem; }
    .warning-mark { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 9px; background: #e7483d; color: #fff; font-weight: 800; }
    .window-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
    .ui-button { min-height: 30px; padding: 5px 12px; display: inline-flex; align-items: center; justify-content: center; border-radius: 7px; font-size: .7rem; font-weight: 650; line-height: 1.2; }
    .ui-button.muted { background: #e5e5e5; color: #333; border: 1px solid #c5c5c5; }
    .ui-button.primary { background: #1769d2; color: #fff; border: 1px solid #1159b6; }
    .ui-button.danger { background: #fff; color: #bd2929; border: 1px solid #d7b3b3; }
    .settings-layout { min-height: 218px; display: grid; grid-template-columns: 138px 1fr; }
    .settings-sidebar { padding: 16px 11px; display: flex; flex-direction: column; gap: 4px; background: #ececec; border-right: 1px solid #ccc; }
    .settings-sidebar span,
    .settings-sidebar b { padding: 7px 9px; border-radius: 6px; font-size: .7rem; }
    .settings-sidebar b { background: #d6d6d6; }
    .settings-panel { padding: 22px; display: flex; flex-direction: column; align-items: flex-start; gap: 14px; }
    .settings-panel small { color: #717171; font-size: .67rem; }
    .settings-panel > strong { font-size: .78rem; line-height: 1.55; }
    .settings-panel h4 { margin: 0; font-size: .94rem; }
    .device-row { width: 100%; padding: 10px 11px; display: grid; grid-template-columns: 28px 1fr auto; gap: 9px; align-items: center; border: 1px solid #ddd; border-radius: 8px; }
    .device-row.selected { background: #e7f0fd; border-color: #7daeea; }
    .device-row strong { display: block; font-size: .75rem; }
    .device-row p { margin: 1px 0 0; color: #777; font-size: .64rem; }
    .device-glyph { color: #1769d2; }
    .checkmark { color: #1769d2; font-weight: 800; }
    .screen-note { margin: 2px 0 0; color: #626262; font-size: .7rem; line-height: 1.55; }
    .browser-tabs { background: #dfe1e5; }
    .browser-tab { margin-left: 9px; padding: 5px 17px; background: #fff; border-radius: 7px 7px 0 0; font-size: .68rem; }
    .address-bar { min-height: 42px; padding: 7px 14px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid #ddd; color: #6f7275; font-size: .72rem; }
    .address-bar code { flex: 1; padding: 5px 11px; background: #eef0f2; border-radius: 15px; color: #34373b; }
    .browser-page { min-height: 235px; display: grid; grid-template-columns: 130px 1fr; }
    .browser-page aside { padding: 20px 14px; display: flex; flex-direction: column; gap: 13px; background: #f1f3f4; font-size: .7rem; }
    .extension-main { padding: 20px; }
    .extension-main h4 { margin: 0 0 16px; font-size: 1rem; }
    .extension-row { padding: 15px; display: grid; grid-template-columns: 38px minmax(110px, 1fr) auto auto auto; gap: 10px; align-items: center; background: #fff; border: 1px solid #dadce0; border-radius: 8px; }
    .extension-row strong { font-size: .75rem; }
    .extension-row p { margin: 3px 0 0; color: #777; font-size: .65rem; }
    .extension-icon { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 8px; background: #232323; color: #fff; font-size: .68rem; font-weight: 800; }
    .switch { width: 34px; height: 20px; position: relative; display: inline-block; border-radius: 999px; background: #a8a8a8; }
    .switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 14px; height: 14px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.25); }
    .switch.on { background: #1769d2; }
    .switch.on::after { left: 17px; }
    .device-demo { display: grid; grid-template-columns: 180px 1fr; gap: 34px; align-items: center; max-width: 630px; margin: 0 auto; }
    .phone-shell { width: 170px; padding: 7px; background: #151515; border-radius: 28px; box-shadow: 0 16px 38px rgba(0,0,0,.2); }
    .phone-screen { position: relative; min-height: 280px; padding: 18px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; background: linear-gradient(160deg,#20364d,#090d13); border-radius: 22px; color: #fff; }
    .dynamic-island { position: absolute; align-self: center; width: 58px; height: 15px; top: auto; margin-top: -238px; background: #000; border-radius: 12px; }
    .apple-mark { font-size: 2rem; color: #fff; }
    .phone-screen small { color: #cbd3dc; font-size: .66rem; }
    .button-sequence { margin: 0; padding: 0; list-style: none; counter-reset: none; }
    .button-sequence li { padding: 13px 0; display: grid; grid-template-columns: 32px 1fr; border-top: 1px solid var(--rule); }
    .button-sequence li:last-child { border-bottom: 1px solid var(--rule); }
    .button-sequence b { grid-row: span 2; color: var(--link); }
    .button-sequence span { font-weight: 700; }
    .button-sequence small { color: var(--muted); }
    .ios-panel { padding: 18px; background: #f2f2f7; }
    .ios-title { margin-bottom: 13px; color: #777; font-size: .67rem; text-align: center; }
    .ios-nav { margin-bottom: 20px; display: flex; gap: 18px; color: #1769d2; font-size: .75rem; }
    .ios-nav b { color: #111; font-size: 1rem; }
    .ios-row { width: 100%; min-height: 44px; padding: 9px 12px; display: flex; align-items: center; justify-content: space-between; gap: 14px; background: #fff; border-bottom: 1px solid #ddd; font-size: .72rem; }
    .ios-row:first-of-type { border-radius: 9px 9px 0 0; }
    .ios-row.subtle { border-radius: 0 0 9px 9px; color: #666; }
    .pencil-board { max-width: 650px; margin: 0 auto; border-top: 1px solid var(--rule-dark); }
    .pencil-item { padding: 18px 8px; display: grid; grid-template-columns: 140px 1fr; gap: 20px; align-items: center; border-bottom: 1px solid var(--rule); }
    .pencil-item strong { font-size: .86rem; }
    .pencil-item p { margin: 4px 0 0; color: var(--muted); font-size: .76rem; }
    .pencil-line { height: 12px; border-radius: 8px; background: #fdfdfd; border: 1px solid #aaa; box-shadow: 0 3px 8px rgba(0,0,0,.08); }
    .pencil-line.usb::after { content: "USB-C"; display: block; color: #777; font-size: .55rem; text-align: right; transform: translateY(14px); }
    .pencil-line.lightning::after { content: "Lightning"; display: block; color: #777; font-size: .55rem; text-align: right; transform: translateY(14px); }
    .startup-screen { padding: 42px 24px 28px; background: #171717; color: #fff; border-radius: 10px; text-align: center; box-shadow: 0 16px 38px rgba(0,0,0,.2); }
    .startup-title { color: #c8c8c8; font-size: .74rem; }
    .startup-disks { margin: 28px auto 22px; display: flex; justify-content: center; gap: 42px; }
    .disk { min-width: 132px; padding: 12px; display: flex; flex-direction: column; align-items: center; gap: 5px; border: 2px solid transparent; border-radius: 10px; }
    .disk.selected { border-color: #f1f1f1; background: #292929; }
    .disk-icon { width: 62px; height: 46px; border-radius: 6px; background: linear-gradient(#d8d8d8,#7f7f7f); box-shadow: inset 0 -7px 0 rgba(0,0,0,.18); }
    .disk-icon.windows { background: linear-gradient(#6fb1ed,#1c5d99); }
    .disk strong { font-size: .76rem; }
    .disk small { color: #a9a9a9; font-size: .62rem; }
    .startup-screen > p { margin: 0; color: #c8c8c8; font-size: .7rem; }

    .terminal-container {
      overflow: hidden;
      background: var(--terminal);
      color: #f5f5f5;
    }
    .terminal-titlebar {
      min-height: 38px;
      padding: 0 15px;
      display: flex;
      align-items: center;
      border-bottom: 1px solid #424242;
      color: #b8b8b8;
      font-family: var(--font-mono);
      font-size: 0.68rem;
    }
    .terminal-content {
      min-height: 78px;
      padding: 17px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .terminal-code {
      color: #f0f0f0;
      font-family: var(--font-mono);
      font-size: 0.83rem;
      line-height: 1.65;
      overflow-wrap: anywhere;
    }
    .copy-button {
      flex: 0 0 auto;
      min-height: 40px;
      padding: 0 12px;
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border: 1px solid #676767;
      background: transparent;
      color: #fff;
      cursor: pointer;
      font-size: 0.74rem;
      font-weight: 700;
      transition: background 150ms ease, color 150ms ease;
    }
    .copy-button svg {
      width: 14px;
      height: 14px;
      fill: none;
      stroke: currentColor;
      stroke-width: 1.8;
    }
    .copy-button:hover { background: #303030; }
    .copy-button.copied { color: #8bd4ad; border-color: #5c9f7c; }

    .article-detail {
      margin-top: 76px;
      padding-top: 12px;
      border-top: 2px solid var(--rule-dark);
    }
    .article-detail > .section-kicker { margin-bottom: 8px; }
    .article-section-title { margin-bottom: 30px; }
    .prose {
      color: var(--text);
      font-size: 1rem;
      line-height: 1.9;
      word-break: keep-all;
      overflow-wrap: break-word;
    }
    .prose > :first-child { margin-top: 0; }
    .prose h2,
    .prose h3 {
      color: var(--ink);
      line-height: 1.45;
      letter-spacing: -0.03em;
    }
    .prose h2 { margin: 56px 0 17px; font-size: 1.5rem; }
    .prose h3 { margin: 40px 0 13px; font-size: 1.17rem; }
    .prose p { margin: 0 0 20px; }
    .prose ul,
    .prose ol { margin: 0 0 24px; padding-left: 1.4rem; }
    .prose li { margin: 8px 0; padding-left: 4px; }
    .prose li::marker { font-family: var(--font-mono); font-size: 0.8em; }
    .prose strong { color: var(--ink); font-weight: 700; }
    .prose code,
    .outcome-path code {
      padding: 0.12em 0.3em;
      border-bottom: 1px solid #aaa9a2;
      color: #8c2f28;
      font-family: var(--font-mono);
      font-size: 0.88em;
    }
    .prose img { max-width: 100%; height: auto; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
    .article-figure {
      margin: 34px 0 38px;
      text-align: center;
    }
    .article-figure img {
      max-width: 100%;
      max-height: 560px;
      width: auto;
      height: auto;
      display: block;
      margin: 0 auto;
      background: #fff;
      border: 1px solid var(--rule);
      border-radius: 4px;
    }
    .article-figure figcaption {
      margin-top: 10px;
      color: var(--quiet);
      font-size: 0.78rem;
      line-height: 1.65;
      text-align: center;
    }
    .download-card {
      margin: 26px 0 28px;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      border: 1px solid var(--rule-dark);
      background: #f3f1eb;
    }
    .download-card strong { color: var(--ink); }
    .download-card p { margin: 5px 0 0; color: var(--muted); font-size: 0.84rem; line-height: 1.6; }
    .download-button {
      flex: 0 0 auto;
      padding: 11px 15px;
      background: var(--ink);
      color: #fff;
      font-size: 0.78rem;
      font-weight: 700;
      text-decoration: none;
      white-space: nowrap;
    }
    .download-button:hover { background: var(--link); }
    .affiliate-product-card {
      margin: 36px 0;
      padding: 24px;
      border: 1px solid var(--rule);
      border-radius: 6px;
      background: #ffffff;
      text-align: center;
      box-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
    }
    .affiliate-header {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      margin-bottom: 8px;
    }
    .affiliate-badge {
      padding: 3px 8px;
      font-size: 0.72rem;
      font-weight: 700;
      color: #ffffff;
      background: #0071e3;
      border-radius: 3px;
      letter-spacing: 0.02em;
    }
    .affiliate-title {
      font-size: 1.02rem;
      font-weight: 700;
      color: var(--ink);
    }
    .affiliate-desc {
      margin: 0 0 18px;
      font-size: 0.85rem;
      color: var(--muted);
      line-height: 1.6;
    }
    .affiliate-frame-wrap {
      display: flex;
      justify-content: center;
      align-items: center;
      margin: 16px auto;
      min-height: 240px;
    }
    .affiliate-frame-wrap iframe {
      border: none;
      overflow: hidden;
      display: block;
    }
    .affiliate-action {
      margin-top: 14px;
    }
    .affiliate-btn {
      display: inline-block;
      padding: 10px 22px;
      background: var(--ink);
      color: #ffffff !important;
      font-size: 0.84rem;
      font-weight: 600;
      text-decoration: none;
      border-radius: 4px;
      transition: background 0.2s ease;
    }
    .affiliate-btn:hover {
      background: #0071e3;
    }
    .affiliate-notice {
      margin-top: 16px;
      font-size: 0.73rem;
      color: var(--quiet);
      line-height: 1.5;
    }
    .comparison-table-wrap {
      width: 100%;
      margin: 28px 0 36px;
      overflow-x: auto;
      border-top: 2px solid var(--rule-dark);
      border-bottom: 1px solid var(--rule-dark);
    }
    .comparison-table {
      width: 100%;
      min-width: 620px;
      border-collapse: collapse;
      font-size: 0.88rem;
      line-height: 1.65;
    }
    .comparison-table th,
    .comparison-table td {
      padding: 13px 12px;
      text-align: left;
      vertical-align: top;
      border-bottom: 1px solid var(--rule);
    }
    .comparison-table th { color: var(--ink); font-weight: 700; background: rgba(0, 0, 0, .025); }
    .comparison-table tr:last-child td { border-bottom: 0; }
    .prose blockquote { margin: 28px 0; padding: 2px 0 2px 18px; border-left: 2px solid var(--rule-dark); color: var(--muted); }
    .article-intro { margin: 0 0 42px; }
    .article-intro > p:first-child { color: var(--ink); font-size: 1.08rem; line-height: 1.85; }

    .solution-steps {
      margin: 36px 0 0;
      padding: 0;
      list-style: none;
    }
    .solution-step {
      position: relative;
      padding: 32px 0 38px;
      border-top: 1px solid var(--rule);
    }
    .solution-step:first-child { border-top: 2px solid var(--rule-dark); }
    .solution-step:last-child { border-bottom: 1px solid var(--rule-dark); }
    .step-number {
      display: block;
      margin-bottom: 7px;
      color: var(--link);
      font-size: 0.72rem;
      font-weight: 800;
      letter-spacing: -0.01em;
    }
    .solution-step h3 {
      max-width: 34rem;
      margin: 0 0 12px;
      color: var(--ink);
      font-size: 1.28rem;
      line-height: 1.42;
      letter-spacing: -0.03em;
      text-wrap: balance;
      word-break: keep-all;
      overflow-wrap: break-word;
    }
    .step-copy {
      max-width: 66ch;
      color: var(--text);
      font-size: 1rem;
      line-height: 1.86;
    }
    .step-copy p {
      margin: 0 0 18px;
    }
    .step-copy p:last-child {
      margin-bottom: 0;
    }
    .step-copy code {
      padding: 0.12em 0.3em;
      border-bottom: 1px solid #aaa9a2;
      color: #8c2f28;
      font-family: var(--font-mono);
      font-size: 0.88em;
    }
    .step-note {
      max-width: 66ch;
      margin: 18px 0 0;
      padding: 12px 14px;
      border-left: 3px solid #b88332;
      background: #eeeae0;
      color: #4f432f;
    }
    .step-note strong {
      display: block;
      margin-bottom: 3px;
      color: #795016;
      font-size: 0.76rem;
      letter-spacing: -0.01em;
    }
    .step-note p { margin: 0; font-size: 0.88rem; line-height: 1.7; }
    .outcome-path {
      max-width: 66ch;
      margin-top: 18px;
      border-top: 1px solid var(--rule);
    }
    .outcome-success,
    .failure-action {
      display: grid;
      grid-template-columns: 94px minmax(0, 1fr);
      gap: 12px;
      align-items: start;
    }
    .outcome-success { padding: 11px 0; }
    .outcome-success strong,
    .failure-action > strong {
      font-size: 0.75rem;
      line-height: 1.7;
      letter-spacing: -0.01em;
    }
    .outcome-success strong { color: var(--success); }
    .outcome-success p,
    .failure-action p { margin: 0; }
    .outcome-success p { color: var(--muted); font-size: 0.86rem; line-height: 1.7; }
    .outcome-failure { border-top: 1px solid var(--rule); }
    .outcome-failure summary {
      position: relative;
      min-height: 46px;
      padding: 11px 0;
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 18px;
      color: var(--text);
      cursor: pointer;
      list-style: none;
      font-size: 0.86rem;
      line-height: 1.7;
    }
    .failure-signal { color: #74352f; }
    .failure-toggle {
      flex: 0 0 auto;
      color: var(--link);
      font-size: 0.72rem;
      font-weight: 700;
      white-space: nowrap;
    }
    .failure-toggle .when-open { display: none; }
    .outcome-failure[open] .failure-toggle .when-closed { display: none; }
    .outcome-failure[open] .failure-toggle .when-open { display: inline; }
    .outcome-failure summary::-webkit-details-marker { display: none; }
    .failure-action {
      margin: 0 0 10px;
      padding: 13px 14px 14px;
      background: #ebe9e2;
      color: var(--text);
      font-size: 0.86rem;
      line-height: 1.7;
    }
    .failure-action > strong { color: var(--ink); }
    .failure-action .branch-link { grid-column: 2; justify-self: start; }

    .faq-wrapper { padding-top: 11px; border-top: 2px solid var(--rule-dark); }
    .faq-wrapper .section-heading { padding-top: 0; border-top: 0; }
    .faq-item { border-top: 1px solid var(--rule); }
    .faq-item:last-child { border-bottom: 1px solid var(--rule-dark); }
    .faq-item summary {
      min-height: 58px;
      padding: 13px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: var(--ink);
      cursor: pointer;
      font-weight: 700;
      list-style: none;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { content: "+"; flex: 0 0 auto; font-family: var(--font-mono); font-size: 0.9rem; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-ans { padding: 0 34px 20px 0; color: var(--muted); }
    .faq-ans p { margin: 0; }
    .faq-next-link {
      display: inline-block;
      margin-top: 10px;
      color: var(--link);
      font-size: 0.84rem;
      font-weight: 700;
      text-underline-offset: 3px;
    }

    .related-list { margin: 0; padding: 0; border-top: 1px solid var(--rule-dark); list-style: none; }
    .related-list li { border-bottom: 1px solid var(--rule); }
    .related-list a {
      min-height: 58px;
      padding: 13px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: var(--ink);
      font-weight: 700;
      text-decoration: none;
    }
    .related-list a:hover { color: var(--link); }
    .source-list { margin: 0; padding: 0; border-top: 1px solid var(--rule-dark); list-style: none; }
    .source-list li { padding: 10px 0; border-bottom: 1px solid var(--rule); }
    .source-list a { color: var(--muted); font-size: 0.86rem; text-underline-offset: 3px; overflow-wrap: anywhere; }
    .source-list a:hover { color: var(--link); }

    .article-sidebar { position: sticky; top: 91px; }
    .toc-card { padding: 11px 0 0 18px; border-top: 2px solid var(--rule-dark); border-left: 1px solid var(--rule); }
    .toc-title {
      margin: 0 0 13px;
      color: var(--ink);
      font-family: var(--font-mono);
      font-size: 0.67rem;
      font-weight: 700;
      letter-spacing: 0.045em;
      text-transform: uppercase;
    }
    .toc-list { margin: 0; padding: 0; list-style: none; }
    .toc-link {
      position: relative;
      display: block;
      padding: 5px 0;
      color: var(--quiet);
      font-size: 0.78rem;
      line-height: 1.48;
      text-decoration: none;
      transition: color 150ms ease;
    }
    .toc-link:hover { color: var(--ink); }
    .toc-link.active { color: var(--link); font-weight: 700; }
    .toc-card .toc-link.active::before {
      content: "";
      position: absolute;
      top: 7px;
      bottom: 7px;
      left: -19px;
      width: 2px;
      background: var(--link);
    }
    .toc-level-3 .toc-link { padding-left: 12px; font-size: 0.74rem; }

    /* ==========================================================================
       Listing Pages (Home & Categories): Hero, Search, Bento, Cards & Tags
       ========================================================================== */

    .hero {
      padding-bottom: 0;
    }
    .hero h1 {
      margin: 0;
      font-size: clamp(1.9rem, 4vw, 2.55rem);
      line-height: 1.35;
      letter-spacing: -.045em;
    }
    .hero-desc { max-width: 680px; margin: 8px 0 0; color: var(--muted); font-size: .95rem; line-height: 1.75; }
    .search-form { max-width: 760px; margin-top: 24px; }
    .search-label { display: block; margin-bottom: 8px; font-size: .77rem; font-weight: 700; }
    .search-box-wrap {
      display: flex;
      align-items: center;
      gap: 12px;
      background: #ffffff;
      border: 1px solid var(--rule-dark);
      border-radius: 4px;
      padding: 4px 16px;
      box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
      transition: border-color 150ms ease, box-shadow 150ms ease;
    }
    .search-box-wrap:focus-within {
      border-color: var(--link);
      box-shadow: 0 4px 14px rgba(22, 77, 179, 0.12);
    }
    .search-box-wrap svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; color: var(--muted); flex-shrink: 0; }
    .search-input { width: 100%; min-height: 46px; padding: 0; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 1.02rem; }
    .search-input::placeholder { color: var(--quiet); }
    .search-empty {
      text-align: center;
      padding: 48px 20px;
      background: var(--surface);
      border: 1px dashed var(--rule-dark);
      border-radius: 6px;
      margin-top: 24px;
    }
    .empty-title {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 6px;
    }
    .empty-desc {
      font-size: 0.88rem;
      color: var(--muted);
    }

    /* Bento Grid Layout System */
    .bento-section { margin-top: 52px; }
    .bento-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }
    .bento-card {
      background: #ffffff;
      border: 1px solid var(--rule);
      border-top: 2px solid var(--rule-dark);
      padding: 24px;
      display: flex;
      flex-direction: column;
      text-decoration: none;
      color: var(--ink);
      transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
      position: relative;
      overflow: hidden;
    }
    .bento-card:hover {
      transform: translateY(-2px);
      border-color: var(--rule-dark);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.07);
    }
    .bento-card.span-2 { grid-column: span 2; }
    .bento-card.span-1 { grid-column: span 1; }

    .bento-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
    }
    .bento-eyebrow {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      color: var(--quiet);
      text-transform: uppercase;
    }
    .bento-badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      font-family: var(--font-mono);
      font-size: 0.68rem;
      font-weight: 700;
      padding: 3px 8px;
      background: #eef5f0;
      color: var(--success);
      border: 1px solid #cbe3d4;
      border-radius: 4px;
      white-space: nowrap;
    }
    .bento-badge.alert {
      background: #fdf3f2;
      color: #c92a2a;
      border-color: #f8c9c6;
    }

    .bento-title {
      margin: 0 0 8px;
      font-family: var(--font-sans);
      font-size: 1.22rem;
      font-weight: 700;
      line-height: 1.35;
      letter-spacing: -0.025em;
      color: var(--ink);
    }
    .bento-card.span-2 .bento-title { font-size: 1.38rem; }
    .bento-desc {
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 0.88rem;
      line-height: 1.62;
    }

    .bento-code-snippet {
      margin-top: auto;
      background: var(--terminal);
      color: #38bdf8;
      padding: 11px 14px;
      border-radius: 4px;
      font-family: var(--font-mono);
      font-size: 0.78rem;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      overflow: hidden;
      white-space: nowrap;
    }
    .bento-code-snippet .code-text { overflow: hidden; text-overflow: ellipsis; }
    .bento-code-snippet .code-tag { color: #94a3b8; font-size: 0.68rem; flex-shrink: 0; }

    .bento-diagram-snippet {
      margin-top: auto;
      padding: 10px;
      background: #f2efe7;
      border-radius: 4px;
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .bento-flow-snippet {
      margin-top: auto;
      display: flex;
      align-items: center;
      gap: 8px;
      overflow-x: auto;
      padding: 6px 0;
      font-family: var(--font-mono);
      font-size: 0.72rem;
    }
    .bento-flow-step {
      background: #eceae3;
      padding: 4px 8px;
      border-radius: 3px;
      color: var(--ink);
      white-space: nowrap;
      font-weight: 600;
    }
    .bento-flow-arrow { color: var(--quiet); }

    .bento-footer {
      margin-top: 16px;
      padding-top: 12px;
      border-top: 1px solid var(--rule);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.78rem;
      color: var(--quiet);
      font-weight: 600;
    }
    .bento-action { color: var(--link); font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }

    .section { margin-top: 48px; }
    .section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, .65fr); gap: 40px; align-items: end; margin-bottom: 18px; padding-top: 10px; border-top: 2px solid var(--rule-dark); }
    .section-heading h2 { margin: 0; font-size: 1.32rem; line-height: 1.45; letter-spacing: -.035em; }
    .section-heading p { margin: 0; color: var(--muted); font-size: .88rem; }
    .category-list,
    .category-children { margin: 0; padding: 0; list-style: none; }
    .category-list { border-bottom: 1px solid var(--rule-dark); }
    .category-children-wrap { list-style: none; }
    .category-row {
      min-height: 76px;
      padding: 14px 0;
      display: grid;
      grid-template-columns: 18px minmax(150px, .45fr) minmax(0, 1fr) 48px;
      gap: 18px;
      align-items: center;
      border-top: 1px solid var(--rule);
      text-decoration: none;
      transition: color 150ms ease;
    }
    .category-list > .category-item:first-child .category-row { border-top-color: var(--rule-dark); }
    .category-row:hover { color: var(--link); }
    .category-bullet { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
    .category-level-1 .category-row { min-height: 58px; padding-left: 42px; grid-template-columns: 18px 108px minmax(0, 1fr) 48px; }
    .category-level-1 .category-bullet { width: 5px; height: 5px; }
    .category-root .category-name { color: var(--link); }
    .category-count, .guide-code { color: var(--quiet); font-family: var(--font-mono); font-size: .68rem; }
    .category-name { font-size: 1.05rem; font-weight: 800; }
    .category-desc { color: var(--muted); font-size: .86rem; }
    .category-count { text-align: right; color: inherit; }
    .guide-list { margin: 0; padding: 0; border-bottom: 1px solid var(--rule-dark); list-style: none; }
    .guide-list > li { border-top: 1px solid var(--rule); }
    .guide-list > li:first-child { border-top-color: var(--rule-dark); }
    .guide-row {
      min-height: 104px;
      padding: 18px 0;
      display: grid;
      grid-template-columns: 112px minmax(0, 1fr) 180px 20px;
      gap: 20px;
      align-items: center;
      text-decoration: none;
      transition: color 150ms ease;
    }
    .guide-row:hover { color: var(--link); }
    .guide-title { display: block; margin-bottom: 4px; color: var(--ink); font-size: 1rem; font-weight: 800; line-height: 1.5; }
    .guide-row:hover .guide-title { color: var(--link); }
    .guide-desc { display: block; color: var(--muted); font-size: .82rem; line-height: 1.55; }
    .guide-device { color: var(--muted); font-size: .76rem; line-height: 1.45; }
    .guide-arrow { text-align: right; font-family: var(--font-mono); }
    .search-result { margin: 13px 0 0; color: var(--quiet); font-family: var(--font-mono); font-size: .69rem; }
    .discovery-section { width: 100%; }
    .recent-grid {
      margin: 0;
      padding: 0;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 20px;
      list-style: none;
    }
    .recent-card {
      min-width: 0;
      background: #ffffff;
      border: 1px solid var(--rule);
      border-top: 3px solid var(--rule-dark);
      border-radius: 4px;
      transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
    }
    .recent-card:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
      border-color: var(--rule-dark);
    }
    .recent-card a {
      min-height: 220px;
      padding: 18px 18px 16px;
      display: flex;
      flex-direction: column;
      text-decoration: none;
      transition: color 150ms ease;
    }
    .recent-card a:hover { color: var(--link); }
    .recent-meta {
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 8px;
      color: var(--quiet);
      font-family: var(--font-mono);
      font-size: .68rem;
    }
    .recent-category {
      display: inline-block;
      font-weight: 700;
      color: var(--ink);
    }
    .recent-card strong {
      display: block;
      color: var(--ink);
      font-size: 0.96rem;
      font-weight: 700;
      line-height: 1.45;
      letter-spacing: -.025em;
      word-break: keep-all;
      overflow-wrap: break-word;
    }
    .recent-card a:hover strong { color: var(--link); }
    .recent-desc {
      margin-top: 10px;
      display: -webkit-box;
      overflow: hidden;
      color: var(--muted);
      font-size: .8rem;
      line-height: 1.6;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 3;
    }
    .recent-open {
      margin-top: auto;
      padding-top: 14px;
      color: var(--ink);
      font-size: .74rem;
      font-weight: 700;
      display: flex;
      align-items: center;
      gap: 4px;
    }

    /* Tag Chips in Hero/Search */
    .tag-chips-wrap {
      margin-top: 16px;
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
    }
    .tag-chips-label {
      font-family: var(--font-mono);
      font-size: 0.72rem;
      font-weight: 700;
      color: var(--quiet);
      margin-right: 4px;
      letter-spacing: 0.04em;
    }
    .tag-chip {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 13px;
      background: #ffffff;
      border: 1px solid var(--rule);
      border-radius: 9999px;
      font-size: 0.8rem;
      color: var(--muted);
      cursor: pointer;
      font-weight: 500;
      transition: color 140ms ease, background 140ms ease, border-color 140ms ease;
    }
    .tag-chip:hover {
      color: var(--ink);
      border-color: var(--ink);
      background: #ebe9e2;
    }
    .tag-chip[aria-pressed="true"] {
      background: var(--ink);
      color: #ffffff;
      border-color: var(--ink);
      font-weight: 700;
    }

    /* AdSense Slot Architecture (CLS Prevention) */

    /* ==========================================================================
       Site Footer & Responsive Utilities
       ========================================================================== */

    .site-footer { border-top: 1px solid var(--rule-dark); }
    .footer-inner {
      max-width: 1180px;
      margin: 0 auto;
      padding: 26px 24px 42px;
      display: flex;
      justify-content: space-between;
      gap: 24px;
      color: var(--quiet);
      font-size: 0.74rem;
    }
    .footer-brand-wrap { display: inline-flex; align-items: center; gap: 8px; }
    .footer-brand-logo { width: 19px; height: 19px; border-radius: 4px; flex-shrink: 0; display: block; }
    .footer-brand { color: var(--ink); font-weight: 700; letter-spacing: 0.03em; }
    :focus-visible { outline: 2px solid var(--link); outline-offset: 3px; }

    @media (max-width: 960px) {
      .page-shell.article-layout { grid-template-columns: minmax(0, 1fr); justify-content: center; }
      .article-sidebar { display: none; }
      .mobile-toc { display: block; }
    }

    @media (max-width: 860px) {
      .section-heading { grid-template-columns: 1fr; gap: 8px; }
      .bento-grid { grid-template-columns: 1fr; gap: 14px; }
      .bento-card.span-2, .bento-card.span-1 { grid-column: span 1; }
      .recent-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
      .guide-row { grid-template-columns: 90px minmax(0, 1fr) 20px; }
      .guide-device { display: none; }
    }

    @media (max-width: 720px) {
      body { overflow-x: hidden; }
      .header-inner { min-height: 58px; padding: 0 18px; }
      .brand { min-width: auto; padding-right: 14px; }
      .brand-edition { display: none; }
      .primary-nav { overflow-x: auto; padding-left: 5px; scrollbar-width: none; }
      .primary-nav::-webkit-scrollbar { display: none; }
      .primary-nav a { padding: 0 8px; font-size: 0.77rem; }
      .nav-submenu { display: none !important; }
      .lang-toggle-btn { padding-left: 10px; font-size: 0.75rem; }
      .page-shell { padding: 38px 18px 76px; }
      .page-shell.article-layout { padding: 27px 18px 74px; }
      .hero h1 { font-size: 1.85rem; word-break: normal; overflow-wrap: anywhere; }
      .hero-desc { word-break: normal; overflow-wrap: anywhere; }
      .section { margin-top: 58px; }
      .recent-grid { grid-template-columns: 1fr; gap: 8px; }
      .recent-card a { min-height: 0; padding: 16px 0 20px; }
      .recent-meta { margin-bottom: 12px; }
      .recent-open { margin-top: 2px; padding-top: 12px; }
      .category-row { grid-template-columns: 10px minmax(0, 1fr) 42px; gap: 10px; }
      .category-level-1 .category-row { padding-left: 28px; grid-template-columns: 10px minmax(0, 1fr) 42px; }
      .category-desc { display: none; }
      .guide-row { grid-template-columns: 1fr 18px; gap: 12px; }
      .guide-code { grid-column: 1 / -1; }
      .guide-copy { grid-column: 1; }
      .guide-arrow { grid-column: 2; grid-row: 2; }
      .breadcrumbs { margin-bottom: 28px; }
      .post-title { font-size: clamp(1.75rem, 6vw, 2.35rem); word-break: keep-all; overflow-wrap: break-word; text-wrap: balance; }
      .post-desc,
      .prose { word-break: keep-all; overflow-wrap: break-word; }
      .post-desc { font-size: 0.95rem; }
      .fact-strip { grid-template-columns: 1fr; }
      .fact-item { padding: 10px 0; border-right: 0; border-bottom: 1px solid var(--rule); }
      .fact-item:last-child { border-bottom: 0; }
      .summary-card { grid-template-columns: 1fr; gap: 8px; }
      .match-result { align-items: flex-start; flex-direction: column; gap: 7px; }
      .content-section,
      .article-detail { margin-top: 56px; }
      .terminal-content { align-items: stretch; flex-direction: column; }
      .copy-button { justify-content: center; }
      .download-card { align-items: stretch; flex-direction: column; }
      .download-button { text-align: center; }
      .screen-stage,
      .paired-screens,
      .device-demo { grid-template-columns: 1fr; }
      .settings-layout { grid-template-columns: 108px 1fr; }
      .browser-page { grid-template-columns: 1fr; }
      .browser-page aside { display: none; }
      .extension-row { grid-template-columns: 38px minmax(0, 1fr) auto; }
      .extension-row .ui-button.muted { display: none; }
      .device-demo { justify-items: center; }
      .button-sequence { width: 100%; }
      .pencil-item { grid-template-columns: 105px 1fr; gap: 14px; }
      .solution-step { padding: 28px 0 32px; }
      .outcome-success,
      .failure-action { grid-template-columns: 1fr; gap: 3px; }
      .failure-action .branch-link { grid-column: 1; margin-top: 5px; }
      .footer-inner { flex-direction: column; }
    }

    @media (max-width: 430px) {
      .brand-name { font-size: 0.82rem; }
      .primary-nav { margin-right: 0; }
    }

    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      * { transition-duration: 0.01ms !important; }
    }

    /* AdSense Slot Architecture */
    .ad-slot {
      margin: 24px 0;
      width: 100%;
      box-sizing: border-box;
      background: transparent;
      border: none;
      border-radius: 0;
      overflow: hidden;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
    }
    .ad-inner {
      width: 100%;
      padding: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
    .ad-label {
      display: none !important;
    }
    .google-auto-placed {
      display: none !important;
    }
    ins.adsbygoogle[data-ad-status="unfilled"],
    .ad-slot:has(ins[data-ad-status="unfilled"]) {
      display: none !important;
    }
    .ad-content iframe {
      border: none !important;
    }
    .ad-content {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 90px;
    }
    .ad-placeholder-text {
      font-family: var(--font-mono);
      font-size: 0.72rem;
      color: var(--quiet);
      letter-spacing: 0.02em;
    }
    .ad-slot-horizontal:not(.article-bottom-ad) {
      margin: 16px 0 24px;
      border: none;
      background: transparent;
      padding: 0;
      min-height: 90px;
    }
    .ad-slot-horizontal:not(.article-bottom-ad) .ad-inner { padding: 0; }
    .ad-slot-horizontal:not(.article-bottom-ad) .ad-content { min-height: 90px; max-height: 120px; }
    .article-top-ad { margin: 16px 0 24px; }
    .ad-slot-multiplex,
    .article-bottom-ad {
      margin: 48px 0 32px;
      width: 100%;
      border: none;
      background: transparent;
      padding: 0;
      min-height: 250px;
      overflow: visible !important;
      display: block;
    }
    .ad-slot-multiplex .ad-inner,
    .article-bottom-ad .ad-inner {
      padding: 0;
      display: block;
      width: 100%;
      overflow: visible !important;
    }
    .ad-slot-multiplex .ad-content,
    .article-bottom-ad .ad-content {
      min-height: 250px;
      max-height: none !important;
      height: auto !important;
      display: block;
      width: 100%;
      overflow: visible !important;
    }
    .article-bottom-ad ins.adsbygoogle {
      min-height: 250px;
      max-height: none !important;
      height: auto !important;
    }
    .article-bottom-ad iframe {
      max-height: none !important;
    }
    .ad-slot-inarticle {
      margin: 36px 0;
      width: 100%;
      border: none;
      background: transparent;
      border-radius: 0;
      padding: 0;
      min-height: unset;
      display: block;
    }
    .ad-slot-inarticle .ad-inner { padding: 0; display: block; }
    .ad-slot-inarticle .ad-content { min-height: unset; display: block; }
    .ad-slot-sidebar {
      margin-top: 24px;
      width: 100%;
      border: none;
      background: transparent;
      border-radius: 0;
      padding: 0;
      min-height: 250px;
      display: block;
    }
    .ad-slot-sidebar .ad-inner { padding: 0; display: block; width: 100%; }
    .ad-slot-sidebar .ad-content { min-height: 250px; display: block; width: 100%; }
    .ad-slot-infeed {
      margin: 8px 0 16px;
      width: 100%;
      border: none;
      background: transparent;
      border-radius: 0;
      padding: 0;
      min-height: unset;
      display: block;
    }
    .ad-slot-infeed .ad-inner {
      padding: 0;
      display: block;
    }
    .ad-slot-infeed .ad-content {
      min-height: unset;
      display: block;
    }
    .guide-infeed-item {
      list-style: none;
      margin: 0;
      padding: 0;
    }
    .empty-state {
      padding: 26px 0;
      border-top: 1px solid var(--rule-dark);
      border-bottom: 1px solid var(--rule-dark);
      color: var(--muted);
    }