.page-home {
  --home-pad: clamp(20px, 4vw, 40px);
  background: var(--c-ink);
  color: var(--c-mist);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-home .breadcrumbs {
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(14px, 3vw, 26px) var(--gutter);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--c-steel);
}

/* ---------- 首屏舞台 ---------- */

.home-stage {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.home-stage__grid {
  display: grid;
  gap: clamp(24px, 5vw, 44px);
}

.home-stage__eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--accent);
}

.home-stage h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.4vw, 68px);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--c-mist);
}

.home-stage__lead {
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 48ch;
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.78;
  color: var(--c-paper);
}

.home-stage__switch {
  max-width: 420px;
  margin: 0 0 clamp(22px, 4vw, 34px);
}

.home-stage__switch .version-toggle {
  box-shadow: var(--shadow);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.home-stage__switch .version-toggle:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 var(--c-black);
}

/* ---------- 步骤时间轴 ---------- */

.home-rail {
  list-style: none;
  margin: 0;
  padding: 0;
}

.home-rail__item {
  position: relative;
  padding-left: 46px;
  border-left: var(--line) solid rgba(124, 151, 163, .38);
  padding-bottom: 4px;
}

.home-rail__item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 20px;
  width: 10px;
  height: 10px;
  background: var(--c-ink);
  border: var(--line-thick) solid var(--accent);
  transform: rotate(45deg);
  transition: background var(--dur) var(--ease);
}

.home-rail__item[data-open]::before {
  background: var(--accent);
}

.home-rail__trigger {
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  padding: 14px 0 10px;
  background: none;
  border: 0;
  color: var(--c-mist);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  text-align: left;
  cursor: pointer;
}

.home-rail__trigger:focus-visible {
  outline: var(--line-thick) solid var(--c-amber);
  outline-offset: 4px;
}

.home-rail__num {
  font-family: var(--font-num);
  font-size: clamp(26px, 4.5vw, 34px);
  line-height: .9;
  color: var(--c-amber);
  letter-spacing: .03em;
}

.home-rail__panel {
  padding: 0 0 16px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-paper);
}

.home-rail__panel p {
  margin: 0;
}

/* ---------- 首屏右侧堆叠画板 ---------- */

.home-stage__panels {
  display: grid;
  gap: 16px;
  align-content: start;
}

.home-stage__board {
  position: relative;
  overflow: hidden;
  border: var(--line-thick) solid var(--c-black);
  box-shadow: var(--shadow);
  background: var(--c-ink-deep);
  transform: translateZ(0);
}

.home-stage__board > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
  filter: grayscale(.55) contrast(1.1);
}

.home-stage__boardbody {
  position: relative;
  padding: var(--home-pad);
  display: grid;
  gap: 14px;
}

.home-stage__boardhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.home-stage__tagline {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .16em;
  color: var(--c-steel);
}

.home-prices {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(146px, 1fr);
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.home-prices::-webkit-scrollbar {
  height: 5px;
}

.home-prices::-webkit-scrollbar-thumb {
  background: var(--c-steel);
}

.home-price {
  scroll-snap-align: start;
  display: grid;
  gap: 6px;
  align-content: start;
  padding: 14px 14px 16px;
  background: var(--c-ink);
  border: var(--line) solid var(--c-steel);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.home-price:hover {
  border-color: var(--c-amber);
  transform: translateY(-2px);
}

.home-price__label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-mist);
}

.home-price__num {
  display: flex;
  align-items: baseline;
  gap: 2px;
  color: var(--c-amber);
}

.home-price__num .num {
  font-family: var(--font-num);
  font-size: clamp(34px, 6vw, 46px);
  line-height: .92;
  letter-spacing: .01em;
}

.home-price__num small {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-paper);
}

.home-price__desc {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-steel);
}

.home-stage__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-steel);
}

.home-slotcard {
  border: var(--line-thick) solid var(--c-black);
  box-shadow: var(--shadow);
  background: var(--c-ink-deep);
  padding: clamp(16px, 3vw, 22px);
  display: grid;
  gap: 12px;
}

.home-slotcard__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.home-slotcard__hint {
  font-size: 12px;
  font-weight: 700;
  color: var(--c-coral);
  letter-spacing: .04em;
}

.home-slots {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.home-slot {
  display: grid;
  gap: 2px;
  justify-items: center;
  padding: 12px 6px;
  border: var(--line) solid var(--c-steel);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--c-mist);
  background: rgba(11, 31, 42, .6);
}

.home-slot .num {
  font-family: var(--font-num);
  font-size: 22px;
  line-height: 1;
  color: var(--accent);
}

/* ---------- 章节面板 ---------- */

.home-section {
  max-width: var(--shell);
  margin: clamp(26px, 5vw, 52px) auto 0;
  padding: 0 var(--gutter);
}

.home-panel {
  position: relative;
  padding: var(--home-pad);
  background: var(--c-ink-deep);
  color: var(--c-mist);
  border: var(--line-thick) solid var(--c-black);
  box-shadow: var(--shadow);
}

.home-panel--light {
  background: var(--c-mist);
  color: var(--c-ink);
}

.home-panel--deep {
  background: var(--c-ink);
}

.home-panel__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin: 0 0 clamp(18px, 3vw, 28px);
}

.home-panel__idx {
  font-family: var(--font-num);
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1;
  letter-spacing: .03em;
  color: var(--c-amber);
}

.home-panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 4vw, 33px);
  line-height: 1.18;
  letter-spacing: -.01em;
}

.home-panel--light h2 {
  color: var(--c-ink);
}

.home-panel__foot {
  margin: clamp(14px, 3vw, 22px) 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-paper);
  border-top: var(--line) solid rgba(124, 151, 163, .35);
  padding-top: 14px;
}

.home-panel--light .home-panel__foot {
  color: #3A4C55;
  border-top-color: rgba(5, 7, 8, .18);
}

/* ---------- 图文错位 ---------- */

.home-split {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
}

.home-split__text p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
}

.home-split__text p:last-of-type {
  margin-bottom: 18px;
}

.home-panel--light .home-split__text p {
  color: #24363F;
}

.home-shot {
  margin: 0;
  border: var(--line-thick) solid var(--c-black);
  box-shadow: var(--shadow-sm);
  background: var(--c-ink-deep);
  overflow: hidden;
}

.home-shot img {
  width: 100%;
  height: clamp(200px, 42vw, 380px);
  object-fit: cover;
}

.home-shot figcaption,
.home-wide figcaption {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.65;
  letter-spacing: .03em;
  color: var(--c-paper);
  background: var(--c-ink-deep);
}

.home-defs {
  margin: 0;
  display: grid;
  gap: 12px;
}

.home-def {
  padding: 12px 14px;
  border-left: var(--line-thick) solid var(--accent);
  background: rgba(5, 7, 8, .05);
}

.home-def dt {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  margin-bottom: 4px;
}

.home-def dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #3A4C55;
}

/* ---------- 版本对照 ---------- */

.home-compare {
  display: grid;
  gap: 16px;
}

.home-compare__col {
  padding: clamp(16px, 3vw, 24px);
  border: var(--line-thick) solid var(--c-black);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 12px;
  align-content: start;
}

.home-compare__col--new {
  background: rgba(47, 125, 107, .14);
  border-left: 6px solid var(--c-celadon);
}

.home-compare__col--old {
  background: rgba(224, 107, 82, .12);
  border-left: 6px solid var(--c-coral);
}

.home-compare__col h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 3vw, 23px);
  line-height: 1.25;
  color: var(--c-mist);
}

.home-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.home-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-paper);
}

.home-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--accent);
}

.home-compare__col--new .home-list li::before {
  background: var(--c-celadon);
}

.home-compare__col--old .home-list li::before {
  background: var(--c-coral);
}

.home-compare__col .btn {
  justify-self: start;
  margin-top: 4px;
}

.home-wide {
  margin: clamp(18px, 3vw, 26px) 0 0;
  border: var(--line-thick) solid var(--c-black);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  background: var(--c-ink-deep);
}

.home-wide img {
  width: 100%;
  height: clamp(190px, 38vw, 360px);
  object-fit: cover;
}

/* ---------- 数据与团队 ---------- */

.home-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 clamp(20px, 4vw, 32px);
}

.home-stat {
  padding: 14px 14px 16px;
  border: var(--line) solid var(--c-black);
  background: var(--c-ink);
  display: grid;
  gap: 4px;
}

.home-stat__num {
  font-family: var(--font-num);
  font-size: clamp(30px, 5.5vw, 44px);
  line-height: .95;
  color: var(--c-amber);
  letter-spacing: .02em;
}

.home-stat__label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--c-paper);
}

/* ---------- 入口分流 ---------- */

.home-routes {
  display: grid;
  gap: 10px;
}

.home-route {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: var(--line) solid var(--c-steel);
  color: var(--c-mist);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.home-route:hover,
.home-route:focus-visible {
  border-color: var(--c-amber);
  background: rgba(232, 166, 60, .08);
  transform: translateX(3px);
}

.home-route__key {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .04em;
}

.home-route__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-steel);
}

.home-contact {
  margin-top: clamp(18px, 3vw, 26px);
  padding-top: 16px;
  border-top: var(--line) solid rgba(124, 151, 163, .35);
  display: grid;
  gap: 12px;
}

.home-contact__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-paper);
}

.page-home .copy-chip {
  justify-self: start;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 900px) {
  .home-stage__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(32px, 4vw, 56px);
  }

  .home-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

  .home-split--reverse {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
  }

  .home-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

  .home-routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .home-panel--shift-l {
    transform: translateX(-18px);
  }

  .home-panel--shift-r {
    transform: translateX(18px);
  }

  .home-slotcard {
    margin-left: clamp(18px, 4vw, 48px);
  }

  .home-shot img {
    height: 100%;
    min-height: 320px;
  }
}

@media (min-width: 1280px) {
  .home-stage__panels {
    gap: 20px;
  }

  .home-price {
    padding: 16px 16px 18px;
  }
}

/* ---------- 减少动效 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
}
<<<END>>>