.page-scenarios {
  --sc-veil-strong: color-mix(in srgb, var(--color-surface) 94%, transparent);
  --sc-veil-mid: color-mix(in srgb, var(--color-surface) 80%, transparent);
  --sc-veil-soft: color-mix(in srgb, var(--color-surface) 46%, transparent);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
}

/* ---------- 首屏框景 ---------- */
.page-scenarios .sc-hero {
  padding-block: var(--space-4) var(--space-6);
}

.page-scenarios .sc-hero .breadcrumb {
  margin-bottom: var(--space-3);
}

.page-scenarios .sc-frame {
  position: relative;
  overflow: hidden;
  padding: var(--space-4) var(--space-3);
  border-radius: var(--radius-md);
}

@media (min-width: 768px) {
  .page-scenarios .sc-frame {
    padding: var(--space-6) var(--space-4);
  }
}

.page-scenarios .sc-frame__bg {
  --overlay-scrim: linear-gradient(
    98deg,
    var(--sc-veil-strong) 0%,
    var(--sc-veil-mid) 58%,
    var(--sc-veil-soft) 100%
  );
  position: absolute;
  inset: 0;
  z-index: 0;
  border: 0;
  border-radius: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-scenarios .sc-frame__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.45;
}

.page-scenarios .sc-frame__bg .img-frame__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-scenarios .sc-frame__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

@media (min-width: 960px) {
  .page-scenarios .sc-frame__inner {
    grid-template-columns: minmax(170px, 3fr) minmax(0, 9fr);
    gap: var(--space-8);
  }
}

/* 步骤索引轨 */
.page-scenarios .sc-rail {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
}

@media (min-width: 960px) {
  .page-scenarios .sc-rail {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }
}

.page-scenarios .sc-rail__link {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-left: 2px solid transparent;
  color: var(--color-ink-soft);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.7;
  transition: color 150ms ease-out, border-color 150ms ease-out,
    background-color 150ms ease-out;
}

.page-scenarios .sc-rail__link:hover {
  color: var(--color-ink);
  background: var(--color-surface-alt);
  border-left-color: var(--color-primary);
}

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

.page-scenarios .sc-rail__link.is-active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

.page-scenarios .sc-rail__num {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  flex: 0 0 auto;
}

.page-scenarios .sc-rail__label {
  min-width: 0;
  overflow-wrap: anywhere;
}

/* 首屏主区 */
.page-scenarios .sc-title {
  margin: var(--space-2) 0 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 0.98;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  overflow-wrap: anywhere;
}

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

@media (min-width: 768px) {
  .page-scenarios .sc-lead {
    font-size: var(--text-lg);
  }
}

.page-scenarios .sc-figures {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.page-scenarios .sc-figures .figure {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-scenarios .sc-figures .figure__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-figure);
  line-height: 1;
  color: var(--color-primary);
}

.page-scenarios .sc-figures .figure__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-ink-muted);
}

/* ---------- 分组区块 ---------- */
.page-scenarios .sc-band__head {
  margin-bottom: var(--space-6);
}

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

@media (min-width: 768px) {
  .page-scenarios .sc-band__title {
    font-size: var(--text-3xl);
  }
}

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

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

@media (min-width: 1024px) {
  .page-scenarios .sc-band__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: var(--space-8);
  }
}

/* ---------- 步骤条目 ---------- */
.page-scenarios .sc-step {
  padding-top: var(--space-4);
  border-top: 1px dotted var(--color-line);
}

.page-scenarios .sc-step + .sc-step {
  margin-top: var(--space-6);
}

.page-scenarios .sc-step__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.page-scenarios .sc-step__num {
  flex: 0 0 auto;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  transition: background-color 150ms ease-out, color 150ms ease-out,
    outline-color 150ms ease-out;
  outline: 1px solid transparent;
  outline-offset: -1px;
}

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

@media (min-width: 768px) {
  .page-scenarios .sc-step__title {
    font-size: var(--text-xl);
  }
}

.page-scenarios .sc-step:hover .sc-step__num,
.page-scenarios .sc-step:focus-within .sc-step__num {
  background: transparent;
  color: var(--color-accent);
  outline-color: var(--color-accent);
}

.page-scenarios .sc-step__fields {
  margin: var(--space-3) 0 0;
  border-top: 1px dotted var(--color-line);
}

.page-scenarios .sc-field {
  display: grid;
  grid-template-columns: 6.5em minmax(0, 1fr);
  gap: var(--space-3);
  padding: var(--space-2) 0;
  border-bottom: 1px dotted var(--color-line);
}

.page-scenarios .sc-field dt {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.page-scenarios .sc-field dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-ink);
}

.page-scenarios .sc-step__note {
  margin: var(--space-3) 0 0;
  padding: var(--space-2) 0 var(--space-2) var(--space-3);
  border-left: 2px solid var(--color-primary);
  background: var(--color-primary-soft);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

/* 结果确认反色小块 */
.page-scenarios .sc-confirm {
  margin-top: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-confirm__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-confirm__text {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.65;
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-confirm__more {
  margin-top: var(--space-2);
}

.page-scenarios .sc-confirm__toggle {
  display: inline-block;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
  border-bottom: 1px dotted var(--color-contrast-line);
  padding-bottom: 1px;
}

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

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

.page-scenarios .sc-confirm__toggle:hover {
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-confirm__toggle:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.page-scenarios .sc-confirm__detail {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-contrast-ink);
}

/* ---------- 旁注与配图 ---------- */
.page-scenarios .sc-aside {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

@media (min-width: 1024px) {
  .page-scenarios .sc-aside {
    position: sticky;
    top: var(--space-6);
  }
}

.page-scenarios .sc-figure {
  margin: 0;
}

.page-scenarios .sc-figure .img-frame {
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-scenarios .sc-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-scenarios .sc-figure__cap {
  margin: var(--space-2) 0 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.65;
  color: var(--color-ink-muted);
}

.page-scenarios .sc-note {
  margin: 0;
  padding: var(--space-3);
  border: 1px dotted var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface-deep);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-scenarios .sc-note strong {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-ink);
  margin-right: 0.35em;
}

.page-scenarios .sc-note a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-primary);
}

.page-scenarios .sc-note a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.page-scenarios .sc-note a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* ---------- 口径核对（反色分区） ---------- */
.page-scenarios .sc-scope__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

@media (min-width: 900px) {
  .page-scenarios .sc-scope__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: var(--space-8);
  }
}

.page-scenarios .sc-scope .eyebrow {
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-scope__title {
  margin: var(--space-2) 0 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-contrast-ink);
}

.page-scenarios .sc-scope__text {
  margin: var(--space-3) 0 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-scope__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-scenarios .sc-scope__item {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  column-gap: var(--space-3);
  padding: var(--space-3) 0;
  border-top: 1px dotted var(--color-contrast-line);
}

.page-scenarios .sc-scope__item:last-child {
  border-bottom: 1px dotted var(--color-contrast-line);
}

.page-scenarios .sc-scope__tag {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-scope__item h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-base);
  letter-spacing: 0.02em;
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-scope__item p {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-contrast-ink);
  opacity: 0.84;
}

/* ---------- 下一步入口 ---------- */
.page-scenarios .sc-next__head {
  margin-bottom: var(--space-4);
}

.page-scenarios .sc-next__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px dotted var(--color-line);
}

.page-scenarios .sc-next__item {
  border-bottom: 1px dotted var(--color-line);
}

.page-scenarios .sc-next__link {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  align-items: baseline;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-2);
  text-decoration: none;
  color: inherit;
  transition: background-color 150ms ease-out;
}

.page-scenarios .sc-next__link:hover {
  background: var(--color-surface-alt);
}

.page-scenarios .sc-next__link:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: -2px;
}

.page-scenarios .sc-next__num {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
}

.page-scenarios .sc-next__body {
  display: block;
  min-width: 0;
}

.page-scenarios .sc-next__name {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-scenarios .sc-next__desc {
  display: block;
  margin-top: var(--space-1);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

.page-scenarios .sc-next__path {
  display: block;
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-scenarios .sc-next__link:hover .sc-next__name {
  color: var(--color-accent);
}

@media (prefers-reduced-motion: reduce) {
  .page-scenarios .sc-rail__link,
  .page-scenarios .sc-step__num,
  .page-scenarios .sc-next__link {
    transition: none;
  }
}