.page-app-download .hero-a {
  position: relative;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: clamp(48px, 9vw, 102px) var(--section-y);
}

.page-app-download .hero-a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 12px;
  background: var(--color-primary);
  clip-path: polygon(0 0, 100% 0, calc(100% - 96px) 100%, 0 100%);
  pointer-events: none;
}

.page-app-download .hero-a-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-3);
}

.page-app-download .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

.page-app-download .breadcrumb li + li::before {
  content: "／";
  margin-inline: var(--space-1);
  color: var(--color-contrast-line);
}

.page-app-download .breadcrumb a {
  color: var(--color-contrast-accent);
  text-decoration: none;
  border-bottom: var(--border-thin) solid transparent;
}

.page-app-download .breadcrumb a:hover,
.page-app-download .breadcrumb a:focus-visible {
  border-bottom-color: currentColor;
}

.page-app-download .hero-kicker {
  justify-self: start;
  margin: 0;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
}

.page-app-download .hero-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-app-download .hero-lead {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-app-download .hero-figures {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-8);
  margin-top: var(--space-2);
  padding-top: var(--space-4);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-app-download .fig {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-app-download .fig-num {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--text-figure);
  line-height: 0.86;
  letter-spacing: -0.03em;
  color: var(--color-contrast-accent);
}

.page-app-download .fig-label {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.8;
}

.page-app-download .route-section {
  background: var(--color-surface);
  padding-block: var(--space-8) 0;
}

.page-app-download .route-figure {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.page-app-download .route-figure img,
.page-app-download .prep-figure img,
.page-app-download .term-figure img,
.page-app-download .scene-deco {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-app-download .section-head {
  display: grid;
  gap: var(--space-2);
}

.page-app-download .section-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-app-download .section-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.page-app-download .section-note {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-app-download .prep-section {
  padding-block: var(--section-y);
}

.page-app-download .prep-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-app-download .prep-figure {
  margin: 0;
}

.page-app-download .prep-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-app-download .prep-item {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .prep-item:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .prep-item dt {
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.page-app-download .prep-item dd {
  margin: 0;
  display: grid;
  gap: var(--space-1);
}

.page-app-download .prep-item p {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download .prep-item .prep-check {
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
  padding-inline-start: var(--space-2);
  border-inline-start: var(--border-thin) solid var(--color-primary);
}

.page-app-download .steps-section {
  padding-block: var(--section-y);
  background: var(--color-surface);
}

.page-app-download .step-groups {
  margin-top: var(--space-6);
  display: grid;
  gap: 0;
}

.page-app-download .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-app-download .step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: var(--space-2);
  padding-block: var(--space-4);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .step-rail {
  position: relative;
  display: flex;
  justify-content: flex-start;
}

.page-app-download .step-rail::before {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 21px;
  width: var(--border-thin);
  background: var(--color-line);
}

.page-app-download .step-num {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  letter-spacing: 0.02em;
}

.page-app-download .step-body {
  display: grid;
  gap: var(--space-2);
  min-width: 0;
}

.page-app-download .step-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download .step-action {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download .step-watch,
.page-app-download .step-done {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-app-download .step-done {
  padding-inline-start: var(--space-2);
  border-inline-start: var(--border-thin) solid var(--color-primary);
}

.page-app-download .field-label {
  display: inline-block;
  margin-inline-end: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.page-app-download .step-action a,
.page-app-download .step-watch a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-app-download .step-action a:focus-visible,
.page-app-download .step-watch a:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 3px;
}

.page-app-download .step-band {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-4) 0;
  padding: var(--space-4) var(--space-4) var(--space-4) calc(var(--space-4) + 12px);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  clip-path: polygon(14px 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
}

.page-app-download .band-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-accent-ink);
}

.page-app-download .step-band p:not(.band-title) {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.8;
  color: var(--color-accent-ink);
}

.page-app-download .term-section {
  padding-block: var(--section-y-lg);
}

.page-app-download .term-layout {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-app-download .term-figure {
  margin: 0;
}

.page-app-download .term-tabs {
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-app-download .tabs-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .tab {
  appearance: none;
  cursor: pointer;
  padding: 8px 18px;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.04em;
}

.page-app-download .tab[aria-selected="true"] {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-app-download .tab:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 3px;
}

.page-app-download .tab-panel {
  padding-top: var(--space-2);
}

.page-app-download .tab-panel[hidden] {
  display: none;
}

.page-app-download .term-fields {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-app-download .term-row {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .term-row dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.page-app-download .term-row dd {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download .term-row dd a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-app-download .scene-section {
  padding-block: var(--section-y);
}

.page-app-download .scene-deco {
  margin-top: var(--space-6);
}

.page-app-download .scene-grid {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-app-download .scene-card {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-1);
}

.page-app-download .scene-card .tag {
  justify-self: start;
}

.page-app-download .scene-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download .scene-text {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink);
}

.page-app-download .scene-act {
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-app-download .scene-act a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-app-download .final-section {
  padding-block: var(--section-y) var(--section-y-lg);
}

.page-app-download .final-grid {
  display: grid;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.page-app-download .confirm-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  align-content: start;
}

.page-app-download .confirm-list li {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .confirm-list li:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .confirm-title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-app-download .confirm-text {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-app-download .next-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  align-content: start;
}

.page-app-download .next-links li {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-app-download .next-links li:last-child {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-app-download .next-link {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  text-decoration: none;
}

.page-app-download .next-title {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-primary);
}

.page-app-download .next-desc {
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-app-download .next-link:hover .next-title {
  color: var(--color-accent);
}

.page-app-download .next-link:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 4px;
}

@media (min-width: 640px) {
  .page-app-download .term-row {
    grid-template-columns: 120px 1fr;
    gap: var(--space-3);
    align-items: baseline;
  }

  .page-app-download .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-app-download .prep-grid {
    grid-template-columns: 0.85fr 1.15fr;
    gap: var(--space-8);
    align-items: start;
  }

  .page-app-download .final-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-app-download .term-layout {
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--space-8);
    align-items: start;
  }

  .page-app-download .fig:nth-child(2) {
    margin-top: var(--space-2);
  }
}

@media (min-width: 1024px) {
  .page-app-download .scene-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-app-download .scene-card:nth-child(2) {
    margin-top: var(--space-3);
  }

  .page-app-download .scene-card:nth-child(3) {
    margin-top: var(--space-1);
  }

  .page-app-download .scene-card:nth-child(4) {
    margin-top: var(--space-6);
  }
}

@media (max-width: 480px) {
  .page-app-download .step {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .page-app-download .step-band {
    padding: var(--space-3) var(--space-3) var(--space-3) calc(var(--space-3) + 12px);
  }

  .page-app-download .tabs-list .tab {
    padding: 8px 14px;
  }
}
<<<END>>>