.page-scenarios {
  --sc-title-ink: var(--color-ink);
  --sc-soft-ink: var(--color-ink-soft);
  --sc-panel: var(--color-surface-alt);
  --sc-panel-ink: var(--color-ink);
  --sc-panel-line: var(--color-line);
  --sc-hover-bg: var(--color-primary);
  --sc-hover-ink: var(--color-primary-ink);
  --sc-step-ink: var(--color-ink-muted);
}

.page-scenarios .band--surface-alt {
  --sc-panel: var(--color-surface);
}

.page-scenarios .band--primary {
  --sc-title-ink: var(--color-primary-ink);
  --sc-soft-ink: color-mix(in srgb, var(--color-primary-ink) 82%, var(--color-primary));
  --sc-panel: var(--color-primary-ink);
  --sc-panel-ink: var(--color-ink);
  --sc-panel-line: color-mix(in srgb, var(--color-primary) 22%, var(--color-primary-ink));
  --sc-hover-bg: var(--color-contrast-surface);
  --sc-hover-ink: var(--color-contrast-ink);
  --sc-step-ink: var(--color-primary);
}

.page-scenarios .band--deep {
  --sc-title-ink: var(--color-contrast-ink);
  --sc-soft-ink: color-mix(in srgb, var(--color-contrast-ink) 76%, var(--color-contrast-surface));
}

.page-scenarios .band--accent {
  --sc-title-ink: var(--color-accent-ink);
  --sc-soft-ink: color-mix(in srgb, var(--color-accent-ink) 84%, var(--color-accent));
}

/* ---------- 通用标题组 ---------- */
.page-scenarios .sc-group__head .section-title,
.page-scenarios .sc-exit .section-title {
  color: var(--sc-title-ink);
  margin: var(--space-2) 0 0;
}

.page-scenarios .sc-group__head .eyebrow,
.page-scenarios .sc-exit .eyebrow {
  color: var(--sc-title-ink);
}

.page-scenarios .sc-group__lede {
  color: var(--sc-soft-ink);
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  max-width: 48ch;
  margin: var(--space-3) 0 0;
}

/* ---------- 面包屑 ---------- */
.page-scenarios .sc-crumb {
  margin-bottom: var(--space-6);
}

.page-scenarios .sc-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-scenarios .sc-crumb li:not(:first-child)::before {
  content: "/";
  margin: 0 var(--space-1);
  opacity: 0.5;
}

.page-scenarios .sc-crumb a {
  color: inherit;
  text-decoration: none;
  border-bottom: var(--border-thin) solid currentColor;
}

.page-scenarios .sc-crumb a:hover {
  color: var(--color-primary);
}

/* ---------- 首屏 ---------- */
.page-scenarios .sc-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-scenarios .sc-hero__lead {
  min-width: 0;
}

.page-scenarios .sc-hero__title {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.06;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin: var(--space-3) 0 var(--space-4);
}

.page-scenarios .sc-hero__lede {
  font-size: var(--text-lg);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
  max-width: 40ch;
  margin: 0 0 var(--space-4);
}

.page-scenarios .sc-roles {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-scenarios .sc-roles li {
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-ink);
  background: var(--color-surface-alt);
}

/* ---------- 首屏色块叠层 ---------- */
.page-scenarios .sc-hero__stack {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-areas:
    "a b"
    "c d"
    "e e";
  gap: 0;
  min-width: 0;
}

.page-scenarios .sc-chip {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3);
  min-height: 104px;
  min-width: 0;
  border-radius: 0;
  overflow: hidden;
}

.page-scenarios .sc-chip--a {
  grid-area: a;
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-scenarios .sc-chip--b {
  grid-area: b;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-chip--c {
  grid-area: c;
  position: relative;
  padding: 0;
  min-height: 168px;
  background: var(--color-contrast-surface);
}

.page-scenarios .sc-chip--d {
  grid-area: d;
  min-height: 168px;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-chip--e {
  grid-area: e;
  min-height: 148px;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-scenarios .sc-chip__num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-scenarios .sc-chip--e .sc-chip__num {
  font-size: var(--text-figure);
}

.page-scenarios .sc-chip__label {
  font-size: var(--text-sm);
  line-height: 1.4;
  opacity: 0.88;
}

.page-scenarios .sc-chip--c img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-sm);
  filter: brightness(0.68) contrast(1.1) saturate(0.9);
}

.page-scenarios .sc-chip__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.4;
  color: var(--color-primary-ink);
  background: var(--overlay-scrim);
}

/* ---------- 筛选区 ---------- */
.page-scenarios .sc-filter__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-ink);
  margin: 0 0 var(--space-1);
}

.page-scenarios .sc-filter__hint {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  margin: 0 0 var(--space-3);
}

.page-scenarios .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.page-scenarios .filter-chip {
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  line-height: 1.4;
  padding: var(--space-1) var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  cursor: pointer;
  transition: background-color 150ms linear, color 150ms linear, border-color 150ms linear;
}

.page-scenarios .filter-chip:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-scenarios .filter-chip[aria-pressed="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-scenarios .filter-chip:focus-visible {
  outline: var(--border-thin) solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 场景网格 ---------- */
.page-scenarios .sc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-scenarios .sc-scene {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-3);
  border: var(--border-thin) solid var(--sc-panel-line);
  border-radius: var(--radius-sm);
  background: var(--sc-panel);
  color: var(--sc-panel-ink);
  transition: background-color 150ms linear, color 150ms linear, border-color 150ms linear;
}

.page-scenarios .sc-scene:hover {
  background: var(--sc-hover-bg);
  border-color: var(--sc-hover-bg);
  color: var(--sc-hover-ink);
}

.page-scenarios .sc-scene__media {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-contrast-surface);
}

.page-scenarios .sc-scene__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-sm);
  filter: brightness(0.74) contrast(1.08) saturate(0.92);
}

.page-scenarios .sc-scene__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-scenarios .sc-scene__num {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--sc-step-ink);
}

.page-scenarios .sc-scene:hover .sc-scene__num {
  color: var(--sc-hover-ink);
}

.page-scenarios .sc-scene__role {
  flex: 0 0 auto;
}

.page-scenarios .sc-scene__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  margin: 0;
}

.page-scenarios .sc-scene__when {
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  opacity: 0.8;
}

.page-scenarios .sc-scene__when span {
  font-weight: var(--weight-heading);
  margin-right: var(--space-1);
}

.page-scenarios .sc-scene__steps {
  list-style: none;
  counter-reset: sc-step;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
}

.page-scenarios .sc-scene__steps li {
  position: relative;
  padding-left: var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
}

.page-scenarios .sc-scene__steps li::before {
  counter-increment: sc-step;
  content: counter(sc-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.15em;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  opacity: 0.62;
}

.page-scenarios .sc-scene__facts {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--sc-panel-line);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.page-scenarios .sc-scene:hover .sc-scene__facts {
  border-top-color: currentColor;
}

.page-scenarios .sc-scene__facts > div {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: baseline;
}

.page-scenarios .sc-scene__facts dt {
  flex: 0 0 auto;
  font-weight: var(--weight-heading);
  opacity: 0.72;
}

.page-scenarios .sc-scene__facts dd {
  margin: 0;
  flex: 1 1 12ch;
  min-width: 0;
  opacity: 0.9;
}

/* ---------- 卡点区 ---------- */
.page-scenarios .sc-traps__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.page-scenarios .sc-trap {
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-contrast-ink) 7%, var(--color-contrast-surface));
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-trap__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-3);
  font-size: var(--text-base);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  cursor: pointer;
  list-style: none;
}

.page-scenarios .sc-trap__head::-webkit-details-marker {
  display: none;
}

.page-scenarios .sc-trap__head::marker {
  content: "";
}

.page-scenarios .sc-trap__head::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-trap[open] .sc-trap__head::after {
  content: "−";
}

.page-scenarios .sc-trap__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-trap__body {
  padding: 0 var(--space-3) var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, var(--color-contrast-surface));
}

.page-scenarios .sc-trap__body p {
  margin: 0 0 var(--space-2);
}

.page-scenarios .sc-trap__body p:last-child {
  margin-bottom: 0;
}

.page-scenarios .sc-trap__body strong {
  color: var(--color-contrast-ink);
  font-weight: var(--weight-heading);
}

/* ---------- 行动出口 ---------- */
.page-scenarios .sc-exit__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.page-scenarios .sc-exit__card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: var(--border-thin) solid color-mix(in srgb, var(--color-accent-ink) 45%, var(--color-accent));
  border-radius: var(--radius-sm);
  color: var(--color-accent-ink);
  text-decoration: none;
  transition: background-color 150ms linear, color 150ms linear, border-color 150ms linear;
}

.page-scenarios .sc-exit__card:hover,
.page-scenarios .sc-exit__card:focus-visible {
  background: var(--color-accent-ink);
  border-color: var(--color-accent-ink);
  color: var(--color-accent);
}

.page-scenarios .sc-exit__card:focus-visible {
  outline: var(--border-thin) solid var(--color-accent-ink);
  outline-offset: 2px;
}

.page-scenarios .sc-exit__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid currentColor;
  border-radius: var(--radius-sm);
}

.page-scenarios .sc-exit__card-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  margin: 0;
}

.page-scenarios .sc-exit__card-text {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  opacity: 0.9;
}

.page-scenarios .sc-exit__foot {
  margin: var(--space-6) 0 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-accent-ink);
}

.page-scenarios .sc-exit__foot a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.page-scenarios .sc-exit__foot a:hover {
  background: var(--color-accent-ink);
  color: var(--color-accent);
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-scenarios .sc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-scenarios .sc-traps__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-scenarios .sc-exit__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-scenarios .sc-hero__grid {
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-scenarios .sc-hero__lead {
    grid-column: 1 / span 5;
  }

  .page-scenarios .sc-hero__stack {
    grid-column: 6 / span 3;
  }

  .page-scenarios .sc-chip {
    min-height: 112px;
  }

  .page-scenarios .sc-chip--c,
  .page-scenarios .sc-chip--d {
    min-height: 184px;
  }

  .page-scenarios .sc-chip--e {
    min-height: 156px;
  }
}

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

  .page-scenarios .sc-scene--wide {
    grid-column: span 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-scenarios .sc-scene,
  .page-scenarios .filter-chip,
  .page-scenarios .sc-exit__card {
    transition: none;
  }
}