.ai-hero {
  position: relative;
  overflow: clip;
  isolation: isolate;
  padding-top: clamp(64px, 8vw, 108px);
  padding-bottom: clamp(64px, 8vw, 104px);
}

.ai-hero-glow {
  position: absolute;
  z-index: -1;
  top: -220px;
  right: -120px;
  width: min(860px, 82vw);
  height: 720px;
  border-radius: var(--radius-pill);
  background:
    radial-gradient(circle at 34% 42%, var(--color-cyan-wash), transparent 48%),
    radial-gradient(circle at 72% 58%, var(--color-brand-wash), transparent 52%);
  pointer-events: none;
}

.ai-hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(500px, 1.12fr);
  align-items: center;
  gap: clamp(42px, 7vw, 92px);
}

.ai-hero-copy h1 {
  max-width: 760px;
  margin-top: 18px;
  margin-bottom: 0;
}

.ai-hero-copy .lead {
  max-width: 690px;
  margin-top: 22px;
  margin-bottom: 0;
}

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

.ai-hero-copy .trust-row {
  margin-top: 20px;
  justify-content: flex-start;
}

.ai-path-panel {
  overflow: clip;
  box-shadow: var(--shadow-device), var(--shadow-device-edge);
  transform: rotate(-0.35deg);
}

.ai-window-bar {
  min-height: 52px;
  padding: 0 16px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 750;
}

.ai-window-dots {
  display: flex;
  gap: 6px;
}

.ai-window-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-pill);
}

.ai-window-dot-brand {
  background: var(--color-brand);
}

.ai-window-dot-cyan {
  background: var(--color-cyan);
}

.ai-window-dot-muted {
  background: var(--color-border-strong);
}

.ai-path-body {
  min-height: 342px;
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
}

.ai-tool-rail {
  padding: 18px 12px;
  display: grid;
  align-content: center;
  gap: 8px;
  border-right: 1px solid var(--color-border);
  background: var(--color-panel-soft);
}

.ai-tool-rail span {
  min-width: 0;
  padding: 8px 9px;
  overflow-wrap: anywhere;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  color: var(--color-muted);
  background: var(--color-panel);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 750;
}

.ai-route-core {
  position: relative;
  padding: 44px 24px;
  display: grid;
  align-content: center;
  gap: 22px;
  background-image:
    linear-gradient(var(--color-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-grid) 1px, transparent 1px);
  background-size: 28px 28px;
}

.ai-route-line {
  position: absolute;
  top: 50%;
  bottom: 50%;
  left: 47px;
  width: 2px;
  height: 190px;
  transform: translateY(-50%);
  border-left: 2px dashed var(--color-border-strong);
}

.ai-route-stage {
  position: relative;
  z-index: 1;
  min-height: 66px;
  padding: 12px 12px 12px 58px;
  display: grid;
  align-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  box-shadow: 0 6px 18px var(--color-shadow-soft);
}

.ai-route-stage svg {
  position: absolute;
  top: 50%;
  left: 14px;
  width: 28px;
  height: 28px;
  transform: translateY(-50%);
  fill: var(--color-brand);
}

.ai-route-stage strong {
  font-size: 13px;
}

.ai-route-stage small {
  color: var(--color-faint);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.ai-panel-note {
  min-height: 54px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--color-border);
  color: var(--color-muted);
  background: var(--color-panel-soft);
  font-size: 12px;
}

.ai-document {
  position: relative;
}

.ai-section-heading {
  max-width: 850px;
  margin-bottom: 34px;
}

.ai-section-heading > p:last-child {
  margin-bottom: 0;
}

.ai-section-index {
  margin-bottom: 12px;
  display: block;
  color: var(--color-brand-dark);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.ai-section h2 {
  max-width: 900px;
}

.ai-workbench {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  overflow: clip;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.ai-workbench-nav {
  padding: 20px 12px;
  display: grid;
  align-content: start;
  gap: 6px;
  border-right: 1px solid var(--color-border);
  background: var(--color-panel-soft);
}

.ai-workbench-nav a {
  min-height: 44px;
  padding: 9px 12px;
  display: flex;
  align-items: center;
  border-radius: var(--radius-xs);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
}

.ai-workbench-nav a:hover {
  color: var(--color-action);
  background: var(--color-action-wash);
}

.ai-workbench-content {
  min-width: 0;
}

.ai-condition {
  padding: clamp(24px, 4vw, 42px);
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  align-items: start;
  gap: 24px;
}

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

.ai-condition h3 {
  margin-bottom: 10px;
}

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

.ai-tool-table th,
.ai-tool-table td {
  min-width: 150px;
}

.ai-tool-table th:first-child,
.ai-tool-table td:first-child {
  min-width: 120px;
  font-family: var(--font-mono);
}

.ai-split {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
  align-items: start;
  gap: clamp(34px, 6vw, 82px);
}

.ai-split-reverse {
  grid-template-columns: minmax(390px, 0.88fr) minmax(0, 1.12fr);
  align-items: center;
}

.ai-split-copy h3 {
  margin-top: 28px;
  font-size: 22px;
}

.ai-check-panel {
  padding: 26px;
}

.ai-check-panel h3 {
  margin-bottom: 22px;
}

.ai-check-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  list-style: none;
  counter-reset: ai-check;
}

.ai-check-list li {
  position: relative;
  padding-left: 42px;
  counter-increment: ai-check;
}

.ai-check-list li::before {
  content: counter(ai-check);
  position: absolute;
  top: 1px;
  left: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-brand);
  border-radius: var(--radius-pill);
  color: var(--color-brand-dark);
  background: var(--color-brand-wash);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
}

.ai-check-list strong,
.ai-check-list span {
  display: block;
}

.ai-check-list span {
  margin-top: 3px;
  color: var(--color-muted);
  font-size: 13px;
}

.ai-compare-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  box-shadow: var(--shadow-panel);
}

.ai-compare-card {
  min-width: 0;
  padding: clamp(26px, 4vw, 44px);
}

.ai-compare-card + .ai-compare-card {
  border-left: 1px solid var(--color-border);
}

.ai-compare-card-action {
  background: var(--color-action-wash);
}

.ai-compare-label {
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

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

.ai-dev-console {
  overflow: clip;
  box-shadow: var(--shadow-device);
}

.ai-console-header,
.ai-console-footer {
  min-height: 54px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.ai-console-header {
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 11px;
  font-weight: 760;
}

.ai-console-row {
  min-height: 68px;
  padding: 14px 18px;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-muted);
  font-size: 13px;
}

.ai-console-key {
  color: var(--color-action);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 800;
}

.ai-console-footer {
  justify-content: flex-start;
  color: var(--color-muted);
  background: var(--color-panel-soft);
  font-size: 12px;
}

.ai-diagnosis-list {
  max-width: 980px;
}

.ai-route-guide {
  padding: clamp(26px, 5vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.7fr);
  align-items: start;
  gap: clamp(32px, 6vw, 76px);
  border-left: 6px solid var(--color-brand);
  box-shadow: var(--shadow-device);
}

.ai-route-guide-copy .button-row {
  margin-top: 26px;
}

.ai-route-summary {
  padding: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel-soft);
}

.ai-route-summary ul {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  list-style: none;
}

.ai-route-summary li {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--color-border);
}

.ai-route-summary li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.ai-route-summary strong,
.ai-route-summary span {
  display: block;
}

.ai-route-summary span {
  margin-top: 4px;
  color: var(--color-muted);
  font-size: 13px;
}

@media (max-width: 1020px) {
  .ai-hero-layout {
    grid-template-columns: 1fr;
  }

  .ai-hero-copy {
    max-width: 820px;
  }

  .ai-path-panel {
    width: 100%;
    transform: none;
  }

  .ai-split,
  .ai-split-reverse,
  .ai-route-guide {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .ai-hero {
    padding-top: 52px;
  }

  .ai-hero-glow {
    top: -150px;
    right: -260px;
    width: 720px;
  }

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

  .ai-tool-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

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

  .ai-workbench-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .ai-condition {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .ai-condition .badge {
    width: fit-content;
  }

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

  .ai-compare-card + .ai-compare-card {
    border-top: 1px solid var(--color-border);
    border-left: 0;
  }
}

@media (max-width: 640px) {
  .ai-hero-copy .trust-row {
    gap: 8px 14px;
  }

  .ai-window-bar {
    grid-template-columns: auto 1fr;
  }

  .ai-window-bar .badge {
    display: none;
  }

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

  .ai-route-core {
    padding: 30px 14px;
  }

  .ai-route-line {
    left: 35px;
  }

  .ai-route-stage {
    padding-left: 52px;
  }

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

  .ai-condition {
    padding: 22px 18px;
  }

  .ai-check-panel,
  .ai-route-summary {
    padding: 20px;
  }

  .ai-compare-card {
    padding: 22px 18px;
  }

  .ai-console-row {
    grid-template-columns: 52px minmax(0, 1fr);
    padding-inline: 14px;
  }

  .ai-route-guide {
    padding: 24px 18px;
  }
}