.page-home {
  --home-diag: 8deg;
  --home-gap: clamp(64px, 8vw, 112px);
  background: var(--paper);
  color: var(--ink-text);
  overflow-x: hidden;
}

/* ---------- 封面首屏 ---------- */
.page-home .home-hero {
  position: relative;
  background: var(--ink-900);
  color: var(--paper);
  padding: calc(var(--header-h) + 44px) 0 0;
  overflow: hidden;
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(124, 147, 168, .22) 1px, transparent 1.2px);
  background-size: 22px 22px;
  pointer-events: none;
}

.page-home .home-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 6vw, 48px);
  align-items: center;
}

.page-home .home-hero__title {
  margin: 16px 0 0;
  font-size: clamp(38px, 7.4vw, 76px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-home .home-hero__title em {
  font-style: normal;
  color: var(--orange-soft);
}

.page-home .home-hero__lede {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(244, 246, 247, .82);
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.page-home .btn--signal {
  background: var(--orange);
  color: var(--ink-900);
  border-color: var(--orange);
  font-weight: 600;
}

.page-home .btn--signal:hover {
  background: var(--orange-soft);
  border-color: var(--orange-soft);
}

.page-home .home-hero__visual {
  position: relative;
  min-width: 0;
}

.page-home .home-hero__figure {
  margin: 0;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 92%);
  border: 2px solid var(--ink-500);
}

.page-home .home-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  filter: saturate(.85) contrast(1.05);
}

.page-home .home-hero__figure::after {
  content: "";
  display: block;
  height: 3px;
  background: var(--orange);
  margin-top: -3px;
}

.page-home .hero-chip {
  position: absolute;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 14px;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  box-shadow: 4px 4px 0 rgba(7, 26, 43, .55);
}

.page-home .hero-chip--a {
  left: clamp(8px, 3vw, 22px);
  bottom: 16%;
}

.page-home .hero-chip--b {
  right: clamp(8px, 3vw, 22px);
  top: 10%;
  border-color: var(--orange);
}

.page-home .hero-chip__num {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 500;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-home .hero-chip--b .hero-chip__num {
  color: var(--orange-soft);
}

.page-home .hero-chip__label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate-400);
}

.page-home .home-stats {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  margin-top: clamp(40px, 6vw, 72px);
  border-top: 2px solid var(--ink-500);
}

.page-home .stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 2px;
  border-bottom: 2px solid var(--ink-500);
}

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

.page-home .stat__num {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  font-weight: 500;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
}

.page-home .stat__label {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--slate-400);
}

/* ---------- 通用标题块 ---------- */
.page-home .home-head {
  max-width: 46rem;
  margin-bottom: clamp(32px, 5vw, 56px);
}

.page-home .home-h2 {
  margin: 14px 0 16px;
  font-size: clamp(26px, 3.6vw, 38px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-home .home-lede {
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-500);
}

/* ---------- 两个专区 ---------- */
.page-home .zone-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 28px);
}

.page-home .zone-card {
  padding: clamp(22px, 3vw, 32px);
  background: var(--paper);
  border: 2px solid var(--ink-500);
  box-shadow: var(--shadow-hard);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-home .zone-card--dark {
  background: var(--ink-700);
  color: var(--paper);
  border-color: var(--ink-900);
}

.page-home .zone-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-home .zone-card__title {
  margin: 0;
  font-size: clamp(19px, 2.2vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .zone-card__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
}

.page-home .zone-card--dark .zone-card__text {
  color: rgba(244, 246, 247, .84);
}

.page-home .zone-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
}

.page-home .zone-list li {
  position: relative;
  padding-left: 20px;
}

.page-home .zone-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-home .zone-card--dark .zone-list {
  color: rgba(244, 246, 247, .72);
}

.page-home .zone-card__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan-deep);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

.page-home .zone-card--dark .zone-card__link {
  color: var(--cyan);
}

.page-home .zone-card__link:hover,
.page-home .zone-card__link:focus-visible {
  border-bottom-color: currentColor;
}

.page-home .zone-figure {
  margin: 0;
  border: 2px solid var(--ink-500);
  background: var(--paper-2);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

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

.page-home .zone-figure figcaption {
  padding: 14px 18px;
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: .04em;
  color: var(--ink-500);
  border-top: 2px solid var(--ink-500);
}

/* ---------- 路径索引 ---------- */
.page-home .home-index {
  background: var(--paper-2);
}

.page-home .home-index__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 40px);
  align-items: start;
}

.page-home .path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-home .path-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 22px 22px;
  background: var(--paper);
  border: 2px solid var(--ink-500);
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  color: var(--ink-text);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}

.page-home .path-card:hover,
.page-home .path-card:focus-visible {
  transform: translate(4px, 0);
  box-shadow: 8px 8px 0 var(--ink-900);
}

.page-home .path-card__step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-900);
  background: var(--orange);
}

.page-home .path-card__title {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .path-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-500);
}

.page-home .path-card__sample {
  margin-top: auto;
  padding-top: 12px;
  border-top: 2px solid var(--paper-2);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate-400);
}

.page-home .path-card__sample b {
  color: var(--cyan-deep);
  font-weight: 500;
  letter-spacing: .04em;
}

.page-home .index-figure {
  margin: 0;
  border: 2px solid var(--ink-900);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  aspect-ratio: 9 / 11;
}

.page-home .index-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 时间线 ---------- */
.page-home .tl {
  list-style: none;
  margin: 0 0 clamp(32px, 5vw, 48px);
  padding: 0 0 0 clamp(18px, 3vw, 28px);
  border-left: 2px solid var(--ink-500);
}

.page-home .tl__item {
  position: relative;
  border-bottom: 2px solid var(--paper-2);
}

.page-home .tl__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(18px, 3vw, 28px) - 7px);
  top: 26px;
  width: 12px;
  height: 12px;
  background: var(--cyan);
  border: 2px solid var(--ink-900);
}

.page-home .tl__head {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

.page-home .tl__head::-webkit-details-marker {
  display: none;
}

.page-home .tl__badge {
  flex: none;
  background: var(--ink-900);
  color: var(--cyan);
  border: 0;
}

.page-home .tl__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  min-width: 0;
}

.page-home .tl__stage {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--slate-400);
}

.page-home .tl__title {
  flex-basis: 100%;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-text);
}

.page-home .tl__box[open] .tl__title {
  color: var(--ink-900);
}

.page-home .tl__body {
  padding: 0 0 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-home .tl__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-500);
}

.page-home .timeline-figure {
  margin: 0;
  border: 2px solid var(--ink-500);
  overflow: hidden;
}

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

.page-home .timeline-figure figcaption {
  padding: 14px 18px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-500);
  background: var(--paper-2);
  border-top: 2px solid var(--ink-500);
}

/* ---------- 工序 ---------- */
.page-home .home-process {
  background: var(--ink-700);
  color: var(--paper);
}

.page-home .home-process__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 56px);
}

.page-home .home-process .home-h2 {
  color: var(--paper);
}

.page-home .home-process .home-lede {
  color: rgba(244, 246, 247, .8);
}

.page-home .process-badge {
  display: inline-block;
  margin: 22px 0 0;
  padding: 8px 14px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink-900);
  background: var(--cyan);
}

.page-home .proc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.page-home .proc__item {
  padding: 24px 22px;
  background: var(--ink-900);
  border-left: 4px solid var(--cyan);
}

.page-home .proc__idx {
  display: block;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--orange-soft);
}

.page-home .proc__title {
  margin: 10px 0 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--paper);
}

.page-home .proc__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 246, 247, .76);
}

.page-home .home-process__foot {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 22px;
  border-top: 2px solid var(--ink-500);
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-400);
}

/* ---------- 从哪开始 ---------- */
.page-home .home-start__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 40px);
  align-items: start;
}

.page-home .step-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-home .step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--paper-2);
  border-left: 4px solid var(--orange);
}

.page-home .step__num {
  flex: none;
  font-size: 20px;
  font-weight: 500;
  line-height: 1.2;
  color: var(--ink-900);
}

.page-home .step p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
}

.page-home .home-start__note {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-500);
}

.page-home .home-start__btn {
  display: inline-block;
}

.page-home .home-start__aside {
  padding: clamp(22px, 3vw, 30px);
  background: var(--ink-900);
  color: var(--paper);
  border: 2px solid var(--ink-900);
  box-shadow: var(--shadow-hard);
}

.page-home .aside-title {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 800;
  color: var(--cyan);
}

.page-home .home-start__aside p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 246, 247, .78);
}

.page-home .aside-link {
  display: block;
  padding: 12px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--orange-soft);
  text-decoration: none;
  border-top: 2px solid var(--ink-500);
}

.page-home .aside-link:hover,
.page-home .aside-link:focus-visible {
  color: var(--paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .home-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .stat {
    border-bottom: 0;
    border-left: 2px solid var(--ink-500);
    padding: 24px clamp(14px, 2.4vw, 28px);
  }

  .page-home .stat:first-child {
    border-left: 0;
    padding-left: 0;
  }

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

@media (min-width: 900px) {
  .page-home .home-hero {
    padding-top: calc(var(--header-h) + 72px);
  }

  .page-home .home-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-home .zone-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, .78fr);
    align-items: stretch;
  }

  .page-home .zone-figure {
    height: 100%;
  }

  .page-home .zone-figure img {
    flex: 1;
    min-height: 0;
    height: 100%;
  }

  .page-home .home-process__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-home .proc {
    grid-template-columns: 1fr;
  }

  .page-home .home-start__inner {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}

@media (min-width: 1020px) {
  .page-home .home-index__body {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }

  .page-home .path-card:nth-child(2) {
    margin-top: 30px;
  }

  .page-home .path-card:nth-child(4) {
    margin-top: 30px;
  }

  .page-home .index-figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .path-card {
    transition: none;
  }
}
<<<END>>>