.ai-hero {
  position: relative;
  overflow-x: clip;
  border-bottom: 1px solid var(--color-line);
  background:
    linear-gradient(to right, transparent, var(--color-accent-soft), transparent),
    var(--color-paper);
}

.ai-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 18%;
  background: var(--color-ink);
  content: "";
}

.ai-hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(400px, .82fr);
  gap: 64px;
  align-items: center;
  padding-top: 86px;
  padding-bottom: 112px;
}

.ai-hero-copy {
  padding-bottom: 52px;
}

.ai-hero-copy h1 {
  max-width: 700px;
}

.ai-hero-copy .lead {
  max-width: 680px;
}

.ai-hero-actions {
  margin-top: 28px;
}

.ai-fact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 24px;
}

.ai-console {
  position: relative;
  z-index: 3;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-medium);
  background: var(--color-panel);
  box-shadow: var(--shadow-window);
}

.ai-console-head {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-chrome);
  padding: 10px 18px;
}

.ai-console-title {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.ai-console-body {
  padding: 26px;
}

.ai-console-primary {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 22px;
}

.ai-console-kicker {
  display: block;
  margin-bottom: 8px;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
}

.ai-console-primary strong {
  display: block;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 400;
}

.ai-console-primary p {
  margin: 10px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.ai-signal-list {
  display: grid;
  margin-top: 8px;
}

.ai-signal-row {
  display: flex;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: 13px;
}

.ai-signal-row strong {
  color: var(--color-success);
  font-family: var(--font-mono);
  font-size: 11px;
}

.ai-tool-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  border-top: 1px solid var(--color-line);
  background: var(--color-ink);
  padding: 16px 22px;
  color: var(--color-dark-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.ai-article {
  background: var(--color-paper);
  padding-top: 34px;
  padding-bottom: var(--section-space);
}

.ai-section {
  padding-top: var(--section-space);
  padding-bottom: calc(var(--section-space) * .35);
}

.ai-section-heading {
  max-width: 850px;
  margin-bottom: 36px;
}

.ai-section-heading h2 {
  max-width: 820px;
}

.ai-copy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, .55fr);
  gap: 38px;
  align-items: start;
}

.ai-copy-grid .callout {
  position: sticky;
  top: var(--toc-offset);
}

.ai-tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.ai-tool-card {
  box-shadow: none;
}

.ai-tool-card h3 {
  margin-top: 20px;
}

.ai-tool-card p {
  color: var(--color-muted);
}

.ai-tool-card p:last-child {
  margin-bottom: 0;
}

.ai-reading-column {
  max-width: var(--reading-width);
}

.ai-reading-column a {
  font-weight: 600;
}

.ai-split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.ai-split .card {
  box-shadow: none;
}

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

.ai-callout {
  margin-top: 18px;
}

.ai-ledger .ledger-row {
  grid-template-columns: 84px minmax(210px, .72fr) minmax(0, 1.28fr);
}

.ai-ledger .ledger-number {
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: .06em;
}

.ai-section .faq-list {
  max-width: 920px;
}

.ai-section .comparison-table-wrap {
  box-shadow: var(--shadow-card);
}

.ai-article .promo-block {
  margin-top: var(--section-space);
}

@media (max-width: 960px) {
  .ai-hero-layout {
    grid-template-columns: 1fr;
    gap: 34px;
    padding-top: 66px;
  }

  .ai-hero-copy {
    padding-bottom: 0;
  }

  .ai-console {
    max-width: 720px;
  }

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

  .ai-copy-grid .callout {
    position: static;
  }

  .ai-ledger .ledger-row {
    grid-template-columns: 62px 1fr;
  }

  .ai-ledger .ledger-copy {
    grid-column: 2;
  }
}

@media (max-width: 720px) {
  .ai-hero::after {
    height: 12%;
  }

  .ai-hero-layout {
    padding-top: 48px;
    padding-bottom: 76px;
  }

  .ai-tool-grid,
  .ai-split {
    grid-template-columns: 1fr;
  }

  .ai-console-body {
    padding: 22px;
  }

  .ai-section {
    padding-top: 64px;
    padding-bottom: 18px;
  }

  .ai-section-heading {
    margin-bottom: 26px;
  }

  .ai-article .promo-block {
    margin-top: 72px;
  }
}

@media (max-width: 520px) {
  .ai-hero-layout {
    gap: 26px;
  }

  .ai-fact-row .pill {
    flex: 1 1 auto;
    justify-content: center;
  }

  .ai-console-head {
    align-items: flex-start;
  }

  .ai-console-primary strong {
    font-size: 23px;
  }

  .ai-signal-row {
    gap: 12px;
  }

  .ai-tool-strip {
    gap: 8px 13px;
  }

  .ai-ledger .ledger-row {
    grid-template-columns: 44px 1fr;
  }

  .ai-ledger .ledger-number {
    font-size: 13px;
  }
}