.page-home {
  --home-hero-pad: clamp(48px, 9vw, 111px);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-home .home-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .home-hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.page-home .home-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-home .home-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-4);
  padding-block: var(--home-hero-pad) var(--space-6);
}

.page-home .home-hero-copy,
.page-home .home-tier-index {
  grid-column: 1 / -1;
  min-width: 0;
}

.page-home .home-breadcrumb {
  color: var(--color-contrast-ink);
  opacity: 0.72;
  margin-bottom: var(--space-3);
}

.page-home .home-breadcrumb .sep {
  margin: 0 var(--space-1);
}

.page-home .home-hero-eyebrow {
  color: var(--color-contrast-accent);
}

.page-home .home-hero-title {
  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-contrast-ink);
  margin: var(--space-3) 0;
  text-wrap: balance;
}

.page-home .home-hero-lede {
  max-width: var(--measure);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-home .home-tier-index {
  padding: var(--space-4);
  display: grid;
  gap: var(--space-3);
}

.page-home .home-tier-index-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  color: var(--color-contrast-accent);
}

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

.page-home .home-tier-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .home-tier-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2);
  align-items: baseline;
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

.page-home .home-tier-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-home .home-tier-list .mono {
  font-size: var(--text-lg);
  color: var(--color-contrast-accent);
}

/* ---------- 首屏数字 ---------- */
.page-home .home-figures {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-3);
  padding-bottom: var(--space-6);
}

.page-home .home-figure {
  display: grid;
  gap: var(--space-1);
  min-width: 0;
}

.page-home .home-figure .figure-lg {
  color: var(--color-contrast-ink);
  font-family: var(--font-mono);
  line-height: 1;
}

.page-home .home-figure-label {
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
  letter-spacing: 0.02em;
}

/* ---------- 首屏刻度 ---------- */
.page-home .home-scale-wrap {
  position: relative;
  z-index: 1;
  padding-bottom: var(--space-8);
}

.page-home .home-scale {
  position: relative;
  list-style: none;
  margin: 0;
  padding: var(--space-3) 0 0;
  display: grid;
  gap: var(--space-3);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .home-scale-item {
  position: relative;
  display: grid;
  grid-template-columns: 14px auto auto 1fr;
  align-items: baseline;
  gap: var(--space-1);
  padding-top: var(--space-2);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
  transition: opacity 200ms ease, transform 200ms ease;
}

.page-home .home-scale-dot {
  display: block;
  align-self: center;
  width: 9px;
  height: 9px;
  border-radius: var(--radius-pill);
  background: var(--color-contrast-accent);
  box-shadow: 0 0 12px var(--color-contrast-accent);
}

.page-home .home-scale-num {
  font-size: var(--text-2xl);
  font-family: var(--font-mono);
  color: var(--color-contrast-ink);
  line-height: 1;
}

.page-home .home-scale-unit {
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
}

.page-home .home-scale-label {
  color: var(--color-contrast-ink);
  opacity: 0.7;
}

/* ---------- 通用章节头 ---------- */
.page-home .home-section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  align-items: start;
  margin-bottom: var(--space-6);
}

.page-home .home-section-head .chapter-number {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  line-height: 1;
  color: var(--color-primary);
}

.page-home .home-section-head .chapter-title {
  margin: var(--space-1) 0 0;
  text-wrap: balance;
}

/* ---------- 01 口径 ---------- */
.page-home .home-origin {
  background: var(--color-surface);
}

.page-home .home-origin-grid {
  display: grid;
  gap: var(--space-4);
}

.page-home .home-origin-lead p {
  margin-top: 0;
}

.page-home .home-origin-lead p + p {
  margin-top: var(--space-3);
}

.page-home .home-fact-list {
  margin: 0;
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-surface-deep);
  border: var(--border-thin) solid var(--color-line);
}

.page-home .home-fact {
  display: grid;
  gap: var(--space-1);
  padding-bottom: var(--space-3);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .home-fact:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-home .home-fact-key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.page-home .home-fact-val {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
}

/* ---------- 02 业务线 ---------- */
.page-home .home-lines {
  background: var(--color-primary-soft);
}

.page-home .home-line-grid {
  display: grid;
  gap: var(--space-4);
}

.page-home .home-line {
  padding: var(--space-4);
  display: grid;
  gap: var(--space-3);
  align-content: start;
  min-width: 0;
}

.page-home .home-line-tag {
  margin: 0;
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-accent);
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-accent);
}

.page-home .home-line-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-home .home-line-intro {
  margin: 0;
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

.page-home .home-line-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .home-line-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-2);
  align-items: baseline;
  font-size: var(--text-sm);
  color: var(--color-ink);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .home-line-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-home .home-line-list .mono {
  color: var(--color-primary);
  font-size: var(--text-sm);
}

.page-home .home-line-media {
  margin: var(--space-2) 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-home .home-line-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-line-foot {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-accent);
}

/* ---------- 03 流程 ---------- */
.page-home .home-flow {
  background: var(--color-surface);
}

.page-home .home-flow-media {
  margin: 0 0 var(--space-6);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-home .home-flow-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
  counter-reset: home-flow;
}

.page-home .home-flow-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  align-items: start;
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-line);
  transition: border-color 200ms ease;
}

.page-home .home-flow-step:hover {
  border-left-color: var(--color-accent);
}

.page-home .home-flow-step-num {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  line-height: 1.1;
  color: var(--color-primary);
}

.page-home .home-flow-step h3 {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-ink);
}

.page-home .home-flow-step p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  max-width: var(--measure);
}

/* ---------- 04 城市 ---------- */
.page-home .home-cities {
  background: var(--color-surface-alt);
}

.page-home .home-cities-lede {
  margin-top: 0;
  margin-bottom: var(--space-6);
  color: var(--color-ink-soft);
}

.page-home .home-city-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-home .home-city {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-surface) 72%, transparent);
  border: var(--border-thin) solid var(--color-line);
  transition: transform 200ms ease, border-color 200ms ease;
}

.page-home .home-city:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.page-home .home-city-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-ink);
  padding-left: var(--space-2);
  border-left: 3px solid var(--color-accent);
}

.page-home .home-city-note {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
}

/* ---------- 05 档位 ---------- */
.page-home .home-tiers {
  background: var(--color-surface);
}

.page-home .home-tiers-grid {
  display: grid;
  gap: var(--space-4);
}

.page-home .home-tiers-media {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-deep);
}

.page-home .home-tiers-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-tier-rows {
  display: grid;
  gap: var(--space-3);
  align-content: start;
}

.page-home .home-tier-row {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--color-highlight);
  display: grid;
  gap: var(--space-1);
}

.page-home .home-tier-row-head {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}

.page-home .home-tier-row-head .mono {
  font-size: var(--text-lg);
  color: var(--color-primary);
}

.page-home .home-tier-row-body {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
}

.page-home .home-tier-foot {
  margin: var(--space-6) 0 0;
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-accent);
  max-width: var(--measure);
}

/* ---------- 06 收束 ---------- */
.page-home .home-close {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-home .home-close-inner {
  display: grid;
  gap: var(--space-3);
}

.page-home .home-close-kicker {
  color: var(--color-contrast-accent);
  margin: 0;
}

.page-home .home-close-title {
  margin: 0;
  color: var(--color-contrast-ink);
  text-wrap: balance;
}

.page-home .home-close-lede {
  margin: 0;
  max-width: var(--measure);
  color: var(--color-contrast-ink);
  opacity: 0.86;
}

.page-home .home-close-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
  max-width: var(--measure);
}

.page-home .home-close-list li {
  position: relative;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  line-height: var(--leading-body);
}

.page-home .home-close-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 10px;
  height: 2px;
  background: var(--color-contrast-accent);
}

.page-home .home-close-note {
  margin: 0;
  max-width: var(--measure);
  padding-left: var(--space-3);
  border-left: 3px solid var(--color-contrast-accent);
  color: var(--color-contrast-ink);
  opacity: 0.9;
}

.page-home .home-close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.page-home .home-close-meta {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-contrast-ink);
  opacity: 0.6;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-home .home-figures {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .home-scale {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-home .home-city-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-home .home-hero-copy {
    grid-column: 1 / 8;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-home .home-tier-index {
    grid-column: 9 / 13;
    align-self: end;
  }

  .page-home .home-figures {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-3);
  }

  .page-home .home-figure--a {
    grid-column: 1 / 5;
  }

  .page-home .home-figure--b {
    grid-column: 5 / 9;
    margin-top: var(--space-6);
  }

  .page-home .home-figure--c {
    grid-column: 9 / 13;
    margin-top: calc(var(--space-8) * 1.2);
  }

  .page-home .home-origin-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-home .home-origin-lead {
    grid-column: 1 / 8;
  }

  .page-home .home-fact-list {
    grid-column: 9 / 13;
  }

  .page-home .home-line-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .home-tiers-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-4);
    align-items: start;
  }

  .page-home .home-tiers-media {
    grid-column: 1 / 8;
  }

  .page-home .home-tier-rows {
    grid-column: 9 / 13;
  }

  .page-home .home-city-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .home-flow-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .home-flow-step {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    border-left: 0;
    border-top: 3px solid var(--color-line);
    padding-left: 0;
    padding-top: var(--space-3);
  }

  .page-home .home-flow-step:hover {
    border-top-color: var(--color-accent);
    border-left-color: transparent;
  }

  .page-home .home-close-inner {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-3) var(--space-4);
  }

  .page-home .home-close-kicker,
  .page-home .home-close-title,
  .page-home .home-close-lede,
  .page-home .home-close-list,
  .page-home .home-close-note,
  .page-home .home-close-actions,
  .page-home .home-close-meta {
    grid-column: 1 / 9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-city,
  .page-home .home-flow-step,
  .page-home .home-scale-item {
    transition: none;
  }

  .page-home .home-city:hover {
    transform: none;
  }
}
<<<END>>>