.page-scenarios {
  --sc-rail: 2px;
  --sc-node: 13px;
  --sc-edge: 3px;
  background-color: var(--color-surface);
}

/* ---------- 面包屑落在深色首屏上 ---------- */
.page-scenarios .sc-hero .crumbs {
  position: relative;
  z-index: 2;
  padding-top: var(--space-4);
  color: color-mix(in srgb, var(--color-contrast-ink) 68%, transparent);
}

.page-scenarios .sc-hero .crumbs a {
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-scenarios .sc-hero .crumbs a:hover {
  color: var(--color-contrast-accent);
}

/* ---------- 首屏 ---------- */
.page-scenarios .sc-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-bottom: var(--section-y-lg);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 46% at 90% 2%, color-mix(in srgb, var(--color-accent) 46%, transparent), transparent 70%),
    radial-gradient(52% 44% at 0% 100%, color-mix(in srgb, var(--color-primary) 46%, transparent), transparent 68%),
    linear-gradient(196deg, transparent 62%, color-mix(in srgb, var(--color-highlight) 12%, transparent) 100%);
}

.page-scenarios .sc-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-4);
  padding-top: var(--space-6);
}

.page-scenarios .sc-hero__axis {
  display: none;
}

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

.page-scenarios .sc-eyebrow {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-hero__title {
  margin: 0;
  max-width: 17ch;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary-ink);
}

.page-scenarios .sc-hero__lead {
  margin: var(--space-3) 0 0;
  max-width: 60ch;
  font-size: var(--text-lg);
  line-height: 1.62;
  color: color-mix(in srgb, var(--color-contrast-ink) 88%, transparent);
}

/* 首屏数字读数 */
.page-scenarios .sc-hero__readout {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-8);
}

.page-scenarios .sc-hero__figure {
  padding: var(--space-3) var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-contrast-ink) 6%, transparent);
}

.page-scenarios .sc-hero__figure .figure__value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-contrast-accent);
  font-variant-numeric: tabular-nums;
  transition: color 240ms ease;
}

.page-scenarios .sc-hero__figure.is-lit .figure__value {
  color: var(--color-primary-ink);
}

.page-scenarios .sc-hero__unit {
  margin-left: 0.22em;
  font-size: var(--text-lg);
  letter-spacing: 0;
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-hero__figure .figure__label {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

/* ---------- 移动端跳转标签 ---------- */
.page-scenarios .sc-jump {
  background: var(--color-surface-alt);
  border-block: var(--border-thin) solid var(--color-line);
}

.page-scenarios .sc-jump__track {
  display: flex;
  gap: var(--space-1);
  padding-block: var(--space-1);
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-scenarios .sc-jump__track::-webkit-scrollbar {
  display: none;
}

.page-scenarios .sc-jump__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  flex: 0 0 auto;
  padding: 0.5em 1em;
  border-radius: var(--radius-pill);
  border: var(--border-thin) solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: var(--text-sm);
  text-decoration: none;
  white-space: nowrap;
}

.page-scenarios .sc-jump__item:hover,
.page-scenarios .sc-jump__item:focus-visible {
  border-color: var(--color-focus);
  color: var(--color-primary);
}

.page-scenarios .sc-jump__num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

/* ---------- 章节 ---------- */
.page-scenarios .sc-chapter {
  position: relative;
  padding-block: var(--section-y);
}

.page-scenarios .sc-chapter--commute {
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-surface-alt) 100%);
}

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

.page-scenarios .sc-chapter--post {
  background: linear-gradient(180deg, var(--color-surface-alt) 0%, var(--color-surface) 100%);
}

.page-scenarios .sc-chapter__head {
  max-width: 64ch;
  margin-bottom: var(--space-6);
}

.page-scenarios .sc-chapter__title {
  margin: var(--space-2) 0 0;
  max-width: 24ch;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-surface);
}

.page-scenarios .sc-chapter__lead {
  margin: var(--space-2) 0 0;
  max-width: 60ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 场景卡 ---------- */
.page-scenarios .sc-scenes {
  display: grid;
  gap: var(--space-4);
}

.page-scenarios .sc-scene {
  position: relative;
  min-width: 0;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.page-scenarios .sc-scene:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}

.page-scenarios .sc-scene__media {
  position: relative;
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-scenarios .sc-scene__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-scenarios .sc-scene__body {
  padding: var(--space-3) var(--space-3) var(--space-4);
}

.page-scenarios .sc-scene__stamp {
  display: inline-block;
  margin: 0 0 var(--space-2);
  padding: 0.28em 0.9em;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-primary-ink);
  background: linear-gradient(96deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-pill);
}

.page-scenarios .sc-scene__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-surface);
}

.page-scenarios .sc-scene__text {
  margin: 0;
  max-width: 62ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-scenarios .sc-scene__list {
  margin: var(--space-3) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-1);
}

.page-scenarios .sc-scene__list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-base);
  line-height: 1.68;
  color: var(--color-ink);
}

.page-scenarios .sc-scene__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: var(--sc-rail);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.page-scenarios .sc-scene__list--inline li {
  background: var(--color-primary-soft);
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-2) var(--space-1) var(--space-3);
  font-size: var(--text-sm);
}

.page-scenarios .sc-scene__list--inline li::before {
  top: 1.15em;
  background: var(--color-primary);
}

.page-scenarios .sc-scene__body > .btn {
  margin-top: var(--space-3);
}

.page-scenarios .sc-scene__entry {
  margin: var(--space-3) 0 0;
}

.page-scenarios .sc-scene__entry a {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--sc-rail) solid color-mix(in srgb, var(--color-primary) 34%, transparent);
  padding-bottom: 2px;
}

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

.page-scenarios .sc-scene__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

/* 紧凑型场景：赛前准备 */
.page-scenarios .sc-scene--tight {
  border-radius: var(--radius-md);
  border-left: var(--sc-edge) solid var(--color-primary);
  box-shadow: none;
  padding: var(--space-3);
}

.page-scenarios .sc-scene--tight:hover {
  transform: none;
  box-shadow: var(--shadow-1);
}

.page-scenarios .sc-scene--tight .sc-scene__title {
  font-size: var(--text-lg);
}

.page-scenarios .sc-scene--tight .sc-scene__text {
  font-size: var(--text-sm);
  line-height: 1.72;
}

/* 中等型场景：赛后复盘 */
.page-scenarios .sc-scene--mid {
  border-radius: var(--radius-lg);
}

.page-scenarios .sc-scene--mid .sc-scene__stamp {
  color: var(--color-accent-ink);
  background: var(--color-accent);
}

/* ---------- 身份分工深色区 ---------- */
.page-scenarios .sc-roles {
  color: var(--color-contrast-ink);
}

.page-scenarios .sc-roles .marker__num {
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-roles .marker__text {
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-scenarios .sc-roles__title {
  margin: var(--space-3) 0 0;
  max-width: 22ch;
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary-ink);
}

.page-scenarios .sc-roles__lead {
  margin: var(--space-2) 0 0;
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 78%, transparent);
}

.page-scenarios .sc-roles__list {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.page-scenarios .sc-role {
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  border: var(--border-thin) solid var(--color-contrast-line);
  background: color-mix(in srgb, var(--color-contrast-ink) 5%, transparent);
}

.page-scenarios .sc-role:nth-child(2) {
  border-color: color-mix(in srgb, var(--color-contrast-accent) 56%, var(--color-contrast-line));
}

.page-scenarios .sc-role__tag {
  margin: 0 0 var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-contrast-accent);
}

.page-scenarios .sc-role__name {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  color: var(--color-primary-ink);
}

.page-scenarios .sc-role__text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.78;
  color: color-mix(in srgb, var(--color-contrast-ink) 82%, transparent);
}

.page-scenarios .sc-role__step {
  margin: var(--space-3) 0 0;
}

.page-scenarios .sc-role__step a {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-accent);
  text-decoration: none;
  border-bottom: var(--sc-rail) solid color-mix(in srgb, var(--color-contrast-accent) 46%, transparent);
  padding-bottom: 2px;
}

.page-scenarios .sc-role__step a:hover {
  color: var(--color-primary-ink);
  border-bottom-color: var(--color-primary-ink);
}

/* ---------- 收尾 ---------- */
.page-scenarios .sc-close {
  padding-block: var(--section-y-lg);
}

.page-scenarios .sc-close__panel {
  display: grid;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(80% 70% at 100% 0%, color-mix(in srgb, var(--color-highlight) 82%, transparent), transparent 68%),
    linear-gradient(168deg, var(--color-surface-alt) 0%, var(--color-surface) 100%);
  border: var(--border-thin) solid var(--color-line);
  box-shadow: var(--shadow-1);
}

.page-scenarios .sc-close__title {
  margin: var(--space-3) 0 0;
  max-width: 22ch;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-surface);
}

.page-scenarios .sc-close__lead {
  margin: var(--space-2) 0 0;
  max-width: 58ch;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-scenarios .sc-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-scenarios .sc-close__media {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.page-scenarios .sc-close__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-scenarios .sc-hero__readout {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    align-items: start;
  }

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

  .page-scenarios .sc-hero__figure--alt2 {
    margin-top: var(--space-3);
  }

  .page-scenarios .sc-close__panel {
    padding: var(--space-6);
  }
}

@media (min-width: 860px) {
  .page-scenarios .sc-scenes--loose {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: var(--space-6) var(--space-4);
    align-items: start;
  }

  .page-scenarios .sc-scenes--loose > .sc-scene:nth-child(2) {
    margin-top: var(--space-8);
  }

  .page-scenarios .sc-scenes--tight {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-scenarios .sc-scenes--mid {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-3);
  }

  .page-scenarios .sc-scene--mid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: stretch;
  }

  .page-scenarios .sc-scene--mid-reverse {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  }

  .page-scenarios .sc-scene--mid .sc-scene__media img {
    height: 100%;
    aspect-ratio: auto;
    min-height: 260px;
  }

  .page-scenarios .sc-roles__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-3);
    align-items: start;
  }

  .page-scenarios .sc-role:nth-child(2) {
    margin-top: var(--space-6);
  }

  .page-scenarios .sc-role:nth-child(3) {
    margin-top: var(--space-2);
  }

  .page-scenarios .sc-close__panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
    gap: var(--space-6);
  }
}

@media (min-width: 900px) {
  .page-scenarios .sc-jump {
    display: none;
  }

  .page-scenarios .sc-hero__grid {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: var(--space-6);
    padding-top: var(--space-8);
  }

  .page-scenarios .sc-hero__axis {
    display: block;
    position: relative;
    min-height: 100%;
  }

  .page-scenarios .sc-hero__axis-track {
    position: absolute;
    left: 7px;
    top: var(--space-1);
    bottom: var(--space-1);
    width: var(--sc-rail);
    border-radius: var(--radius-pill);
    background: linear-gradient(180deg,
      var(--color-contrast-accent) 0%,
      color-mix(in srgb, var(--color-contrast-accent) 26%, transparent) 68%,
      transparent 100%);
  }

  .page-scenarios .sc-hero__axis-node {
    position: absolute;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--sc-node);
    height: var(--sc-node);
    border-radius: 50%;
    background: var(--color-contrast-surface);
    box-shadow: 0 0 0 var(--sc-rail) var(--color-contrast-accent);
    font-family: var(--font-mono);
    font-size: 0;
    color: transparent;
    text-decoration: none;
    transition: box-shadow 200ms ease, transform 200ms ease;
  }

  .page-scenarios .sc-hero__axis-node:hover,
  .page-scenarios .sc-hero__axis-node:focus-visible {
    transform: scale(1.35);
    box-shadow: 0 0 0 var(--sc-edge) var(--color-primary-ink);
  }

  .page-scenarios .sc-hero__axis-node--a { top: 6%; }
  .page-scenarios .sc-hero__axis-node--b { top: 47%; }
  .page-scenarios .sc-hero__axis-node--c { top: 86%; }

  .page-scenarios .sc-hero__title {
    max-width: 19ch;
  }
}
<<<END>>>