.page-home {
  --home-shell: 1280px;
  --home-hero-rule: rgba(247, 244, 238, 0.2);
  overflow-x: hidden;
}

/* ---------- 首屏海报 ---------- */
.page-home .hero {
  position: relative;
  background: var(--ink);
  color: var(--paper);
  padding: calc(var(--header-h) + clamp(2.5rem, 7vw, 5.5rem)) 0 clamp(2.5rem, 6vw, 4.5rem);
  overflow: hidden;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 55% at 82% 18%, rgba(10, 77, 140, 0.55) 0%, rgba(11, 27, 51, 0) 68%),
    radial-gradient(45% 40% at 12% 88%, rgba(46, 125, 143, 0.28) 0%, rgba(11, 27, 51, 0) 70%);
  pointer-events: none;
}

.page-home .hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
}

.page-home .hero__eyebrow {
  color: var(--on-dark-soft);
  margin: 0 0 clamp(1.1rem, 3vw, 1.8rem);
}

.page-home .hero__title {
  margin: 0 0 clamp(1.1rem, 3vw, 1.9rem);
  font-weight: 200;
  font-size: clamp(2.5rem, 9vw, 5.6rem);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .hero__title span {
  display: block;
}

.page-home .hero__title span:last-child {
  color: var(--orange);
}

.page-home .hero__lede {
  margin: 0;
  max-width: 30rem;
  font-size: clamp(1rem, 1.6vw, 1.075rem);
  line-height: 1.85;
  color: var(--on-dark);
}

.page-home .hero__scroll {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .hero__scroll-line {
  display: block;
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, var(--orange), rgba(255, 107, 53, 0));
}

.page-home .hero__scroll-word {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--on-dark-soft);
}

.page-home .hero__figure {
  position: relative;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--home-hero-rule);
  overflow: hidden;
}

.page-home .hero__figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
  mix-blend-mode: screen;
}

.page-home .hero__glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(10, 77, 140, 0.6) 0%, rgba(11, 27, 51, 0.9) 100%);
}

.page-home .hero__svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.page-home .hero__paths {
  display: grid;
  gap: 1px;
  grid-template-columns: minmax(0, 1fr);
  background: var(--home-hero-rule);
  border-top: 1px solid var(--home-hero-rule);
  border-bottom: 1px solid var(--home-hero-rule);
}

.page-home .path-card {
  position: relative;
  display: block;
  padding: clamp(1.1rem, 3vw, 1.6rem) clamp(1rem, 2.4vw, 1.4rem);
  background: transparent;
  text-decoration: none;
  color: var(--paper);
  transition: background 180ms var(--ease), transform 180ms var(--ease), color 180ms var(--ease);
}

.page-home .path-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--orange);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 220ms var(--ease);
}

.page-home .path-card__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin-bottom: 0.6rem;
}

.page-home .path-card__title {
  display: block;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.5rem;
}

.page-home .path-card__text {
  display: block;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--on-dark);
}

.page-home .path-card:hover,
.page-home .path-card:focus-visible {
  background: rgba(10, 77, 140, 0.42);
  transform: translateX(4px);
}

.page-home .path-card:hover::before,
.page-home .path-card:focus-visible::before {
  transform: scaleY(1);
}

/* ---------- 通用章节 ---------- */
.page-home .section {
  padding: clamp(3.25rem, 8vw, 6rem) 0;
}

.page-home .section--channels {
  background: var(--paper);
}

.page-home .section--archive {
  background: var(--panel);
}

.page-home .section--desktop {
  background: var(--paper);
}

.page-home .section--feedback {
  background: var(--paper);
  padding-top: 0;
}

.page-home .section-head--split .section-title,
.page-home .archive-head .section-title {
  margin: 0.75rem 0 1rem;
}

.page-home .section-note {
  max-width: 40rem;
}

.page-home .section-head--split,
.page-home .archive-head {
  margin-bottom: clamp(1.75rem, 5vw, 3rem);
}

/* ---------- 栏目分布 ---------- */
.page-home .range-figure {
  margin: 0 0 clamp(1.75rem, 5vw, 2.75rem);
  border: 1px solid var(--line);
  background: var(--ink);
}

.page-home .range-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.88;
}

.page-home .range-figure .annotation {
  margin: 0;
  padding: 0.75rem 1rem;
  background: var(--paper);
  border-top: 1px solid var(--line);
}

.page-home .range-grid {
  display: grid;
  gap: 1px;
  grid-template-columns: minmax(0, 1fr);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .range-card {
  position: relative;
  padding: clamp(1.25rem, 3vw, 1.85rem);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-home .range-card__num {
  font-size: 12px;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--brand);
  border-bottom: 2px solid var(--press);
  align-self: flex-start;
  padding-bottom: 2px;
}

.page-home .range-card__title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-home .range-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--slate);
  flex: 1;
}

.page-home .range-card__link {
  align-self: flex-start;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .range-card__link:hover,
.page-home .range-card__link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

/* ---------- 归档时间轴 ---------- */
.page-home .archive-layout {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-home .archive-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--paper);
}

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

.page-home .archive-figure .annotation {
  margin: 0;
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--line);
}

.page-home .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line-strong);
}

.page-home .timeline__item {
  position: relative;
  padding: 0 0 clamp(1.35rem, 4vw, 1.9rem) clamp(1.1rem, 3vw, 1.7rem);
}

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

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 0.5rem;
  width: 8px;
  height: 8px;
  background: var(--sky);
  border: 1px solid var(--brand);
  border-radius: 50%;
  transition: background 180ms var(--ease), transform 180ms var(--ease);
}

.page-home .timeline__item:last-child::before {
  background: var(--orange);
  border-color: var(--orange);
}

.page-home .timeline__item:hover::before {
  background: var(--orange);
  border-color: var(--orange);
  transform: scale(1.25);
}

.page-home .timeline__when {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--slate);
  margin-bottom: 0.4rem;
}

.page-home .timeline__title {
  margin: 0 0 0.4rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.35;
}

.page-home .timeline__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .archive-more {
  margin: clamp(1.75rem, 5vw, 2.5rem) 0 0;
}

/* ---------- 电脑端场景 ---------- */
.page-home .desktop-layout {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3.25rem);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-home .step-list {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(1rem, 3vw, 1.5rem);
}

.page-home .step-list__item {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.page-home .step-list__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--line-strong);
  background: var(--sky);
  color: var(--brand);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.page-home .step-list__title {
  margin: 0.3rem 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-home .step-list__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--slate);
}

.page-home .desktop-cta {
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
}

.page-home .desktop-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--paper);
}

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

.page-home .desktop-figure .annotation {
  margin: 0;
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--line);
}

/* ---------- 反馈面板 ---------- */
.page-home .feedback-panel {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(1.75rem, 5vw, 3rem);
  background: var(--brand);
  color: var(--paper);
  border: 1px solid var(--brand);
}

.page-home .eyebrow--on-brand {
  color: rgba(247, 244, 238, 0.7);
  margin: 0 0 0.9rem;
}

.page-home .feedback-panel__title {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 4vw, 2.125rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-home .feedback-panel__text {
  margin: 0;
  max-width: 34rem;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: rgba(247, 244, 238, 0.82);
}

.page-home .feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.25rem, 3vw, 1.85rem);
}

.page-home .feedback-panel__aside {
  padding-top: clamp(1.25rem, 4vw, 1.75rem);
  border-top: 1px solid rgba(247, 244, 238, 0.24);
}

.page-home .feedback-panel__label {
  margin: 0 0 0.5rem;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: rgba(247, 244, 238, 0.7);
}

.page-home .feedback-panel__mail {
  margin: 0 0 0.9rem;
  font-size: clamp(1rem, 2.4vw, 1.1875rem);
  font-weight: 700;
  color: var(--paper);
  word-break: break-all;
}

.page-home .feedback-panel__note {
  margin: 1rem 0 0;
  color: rgba(247, 244, 238, 0.7);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .hero__paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-home .hero {
    padding-top: calc(var(--header-h) + clamp(3.5rem, 8vw, 7rem));
    padding-bottom: clamp(3rem, 6vw, 5rem);
  }

  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    grid-template-areas:
      "lead figure"
      "paths paths";
    column-gap: clamp(2rem, 5vw, 4.5rem);
    row-gap: clamp(2.5rem, 6vw, 4rem);
    align-items: center;
  }

  .page-home .hero__lead {
    grid-area: lead;
  }

  .page-home .hero__figure {
    grid-area: figure;
    aspect-ratio: auto;
    min-height: clamp(20rem, 46vw, 32rem);
  }

  .page-home .hero__paths {
    grid-area: paths;
    margin-top: 0;
  }

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

  .page-home .archive-layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    column-gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-home .desktop-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-home .feedback-panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .feedback-panel__aside {
    padding-top: 0;
    padding-left: clamp(1.25rem, 3vw, 2rem);
    border-top: 0;
    border-left: 1px solid rgba(247, 244, 238, 0.24);
  }
}

@media (min-width: 1180px) {
  .page-home .archive-layout {
    grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .path-card,
  .page-home .path-card::before,
  .page-home .timeline__item::before,
  .page-home .range-card__link {
    transition-duration: 0.01ms;
  }

  .page-home .path-card:hover,
  .page-home .path-card:focus-visible {
    transform: none;
  }
}
</PAGE_CSS>>>