.ai-hero {
  position: relative;
  padding-top: 84px;
  padding-bottom: 72px;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-page);
}

.ai-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 48px 48px;
  content: "";
  opacity: 0.22;
  pointer-events: none;
}

.ai-hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(460px, 1.08fr);
  align-items: center;
  gap: 68px;
}

.ai-hero-copy {
  position: relative;
  z-index: 2;
}

.ai-hero-copy h1 {
  max-width: 680px;
  margin-top: 20px;
}

.ai-hero-actions {
  justify-content: flex-start;
  margin-top: 28px;
}

.ai-hero-lead {
  margin-top: 24px;
}

.ai-trust-row {
  justify-content: flex-start;
  margin-top: 22px;
}

.ai-console {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  box-shadow: var(--shadow-window);
}

.ai-console-bar {
  display: flex;
  height: 40px;
  align-items: center;
  padding-inline: 15px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.ai-console-title {
  flex: 1;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
}

.ai-console-spacer {
  width: 48px;
}

.ai-console-group {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.ai-console-group strong {
  color: var(--color-ink);
}

.ai-console-group-icon {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
  color: var(--color-warning);
}

.ai-console-head,
.ai-console-row {
  display: grid;
  grid-template-columns: minmax(90px, 0.7fr) minmax(190px, 1.6fr) minmax(92px, 0.7fr);
  align-items: center;
  gap: 16px;
  padding: 13px 20px;
}

.ai-console-head {
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.ai-console-head span {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ai-console-row {
  border-bottom: 1px solid var(--color-line);
}

.ai-console-row:last-child {
  border-bottom: 0;
}

.ai-console-row:hover {
  background: var(--color-panel);
}

.ai-console-entry,
.ai-console-rule,
.ai-console-state {
  font-family: var(--font-mono);
  font-size: 11.5px;
}

.ai-console-entry {
  color: var(--color-ink-deep);
  font-weight: 700;
}

.ai-console-rule {
  color: var(--color-muted);
}

.ai-console-state {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 7px;
  color: var(--color-ink);
  white-space: nowrap;
}

.ai-toc-wrap {
  padding-top: 28px;
}

.ai-article {
  width: 100%;
}

.ai-section-muted {
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-panel);
}

.ai-section-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.28fr);
  align-items: start;
  gap: 76px;
}

.ai-section-heading {
  position: sticky;
  top: calc(var(--header-height) + 76px);
}

.ai-section-heading h2 {
  max-width: 480px;
}

.ai-section-heading-wide {
  position: static;
  max-width: 820px;
  margin-bottom: 42px;
}

.ai-section-heading-wide p {
  max-width: 700px;
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 16px;
}

.ai-section-body {
  max-width: 760px;
}

.ai-table-heading {
  align-items: end;
}

.ai-tool-table {
  min-width: 840px;
}

.ai-tool-table td:first-child {
  color: var(--color-ink-deep);
  font-family: var(--font-mono);
}

.ai-tool-ledger .ledger-row {
  grid-template-columns: 180px minmax(0, 1fr);
}

.ai-tool-ledger .ledger-copy {
  padding-right: 34px;
}

.ai-mode-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.ai-mode-panel {
  display: flex;
  min-height: 390px;
  flex-direction: column;
  padding: 30px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
}

.ai-mode-label,
.ai-check-code {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.ai-mode-panel h3 {
  margin-top: 18px;
}

.ai-mode-panel p {
  margin-top: 16px;
  color: var(--color-muted);
}

.ai-mode-panel ul {
  display: grid;
  gap: 10px;
  margin-top: auto;
  padding: 28px 0 0;
  list-style: none;
}

.ai-mode-panel li {
  position: relative;
  padding-left: 19px;
  color: var(--color-ink);
  font-size: 14px;
}

.ai-mode-panel li::before {
  position: absolute;
  left: 0;
  color: var(--color-success);
  content: "✓";
  font-weight: 800;
}

.ai-security-callout {
  margin-top: 20px;
}

.ai-checklist {
  border-top: 1px solid var(--color-line);
}

.ai-check-item {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
}

.ai-check-item h3 {
  font-size: 20px;
}

.ai-check-item p {
  margin-top: 8px;
  color: var(--color-muted);
}

.ai-failure-list {
  border-top: 1px solid var(--color-line);
}

.ai-failure-row {
  display: grid;
  grid-template-columns: minmax(240px, 0.82fr) minmax(0, 1.18fr);
  gap: 54px;
  padding: 27px 0;
  border-bottom: 1px solid var(--color-line);
}

.ai-failure-row h3 {
  font-size: 18px;
}

.ai-failure-row p {
  color: var(--color-muted);
}

.ai-choice-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.76fr) minmax(0, 1.24fr);
  gap: 76px;
}

.ai-choice-copy {
  max-width: 760px;
}

.ai-choice-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.ai-section-muted .article-promo {
  max-width: calc(var(--content-max) - (var(--gutter) * 2));
  margin-inline: auto;
  margin-top: 76px;
}

@media (max-width: 960px) {
  .ai-hero-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .ai-hero-copy {
    max-width: 780px;
  }

  .ai-console {
    width: 100%;
  }

  .ai-section-grid,
  .ai-choice-layout {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .ai-section-heading {
    position: static;
  }

  .ai-mode-grid {
    grid-template-columns: 1fr;
  }

  .ai-mode-panel {
    min-height: 0;
  }

  .ai-mode-panel ul {
    margin-top: 28px;
    padding-top: 0;
  }

  .ai-failure-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 768px) {
  .ai-hero {
    padding-top: 56px;
    padding-bottom: 58px;
  }

  .ai-hero::before {
    background-size: 36px 36px;
  }

  .ai-hero-layout {
    gap: 38px;
  }

  .ai-console {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .ai-console-bar,
  .ai-console-group,
  .ai-console-head,
  .ai-console-row {
    min-width: 620px;
  }

  .ai-table-heading {
    align-items: flex-start;
  }

  .ai-tool-ledger .ledger-row {
    grid-template-columns: 1fr;
  }

  .ai-tool-ledger .ledger-copy {
    padding-right: 18px;
  }

  .ai-check-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .ai-section-muted .article-promo {
    margin-inline: var(--gutter);
  }
}

@media (max-width: 640px) {
  .ai-hero-actions,
  .ai-choice-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .ai-hero-actions .btn,
  .ai-choice-actions .btn {
    width: 100%;
  }

  .ai-trust-row {
    justify-content: flex-start;
  }

  .ai-mode-panel {
    padding: 24px 20px;
  }

  .ai-section-heading-wide {
    margin-bottom: 32px;
  }

  .ai-failure-row {
    padding-top: 23px;
    padding-bottom: 23px;
  }

  .ai-section-muted .article-promo {
    margin-top: 58px;
  }
}