.page-home {
  --home-edge: 8px;
  --home-tick: 4px;
  --home-aside: 216px;
}

/* ---------- 首屏框景 ---------- */
.page-home .home-hero {
  padding: var(--space-4) 0 var(--space-6);
}

.page-home .home-hero__frame {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
  border: var(--home-edge) solid var(--color-contrast-surface);
}

.page-home .home-hero__frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 12px;
  z-index: 3;
  pointer-events: none;
  opacity: 0.3;
  background: repeating-linear-gradient(
    90deg,
    var(--color-contrast-surface) 0,
    var(--color-contrast-surface) 2px,
    transparent 2px,
    transparent 14px
  );
}

.page-home .home-hero__inner {
  position: relative;
  z-index: 2;
  padding: var(--space-4) var(--space-3) var(--space-6);
}

.page-home .home-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
  margin-top: var(--space-3);
}

.page-home .home-hero__title {
  margin: var(--space-3) 0 var(--space-4);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .home-hero__row {
  display: grid;
  gap: var(--space-4);
  align-items: start;
}

.page-home .home-hero__lede {
  margin: 0 0 var(--space-3);
  max-width: 46ch;
  color: var(--color-ink-soft);
}

.page-home .home-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-home .home-hero__figures {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  overflow: hidden;
  background: var(--color-primary);
}

.page-home .home-hero__figures::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: var(--color-accent);
  clip-path: polygon(48% 0, 100% 0, 100% 100%, 42% 100%);
}

.page-home .home-fig {
  position: relative;
  z-index: 2;
  padding: var(--space-3) var(--space-3) var(--space-4);
  color: var(--color-primary-ink);
}

.page-home .home-fig__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.04em;
  padding-bottom: var(--space-1);
  margin-bottom: var(--space-2);
  border-bottom: var(--home-tick) solid color-mix(in srgb, var(--color-primary-ink) 62%, transparent);
}

.page-home .home-fig__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
}

/* ---------- 纵向版本脉络 ---------- */
.page-home .home-line__banner {
  margin: var(--space-4) 0 var(--space-6);
}

.page-home .home-line__banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 2;
  object-fit: cover;
}

.page-home .home-line__grid {
  display: grid;
  gap: var(--space-6);
}

.page-home .home-line__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--space-3);
  display: grid;
  gap: var(--space-4);
  border-left: var(--home-tick) solid var(--color-surface-deep);
}

.page-home .home-line__item {
  display: grid;
  grid-template-columns: 3.4em minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
}

.page-home .home-line__no {
  padding-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: 1;
  color: var(--color-ink-muted);
  border-top: var(--home-tick) solid var(--color-primary);
}

.page-home .home-line__title {
  margin: 0 0 var(--space-1);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .home-line__range {
  margin: 0 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-accent);
}

.page-home .home-line__desc {
  margin: 0;
  max-width: 62ch;
  color: var(--color-ink-soft);
}

.page-home .home-line__item--current .home-line__no {
  color: var(--color-accent);
  border-top-color: var(--color-accent);
}

.page-home .home-line__item--current .home-line__title {
  color: var(--color-accent);
}

.page-home .home-line__toc {
  margin-top: var(--space-2);
}

/* ---------- 六类对照表 ---------- */
.page-home .home-tools__grid {
  display: grid;
  gap: var(--space-6);
}

.page-home .home-tools__seg {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--space-1);
  overflow-x: auto;
  padding-bottom: var(--space-1);
  margin: var(--space-3) 0;
  scrollbar-width: thin;
}

.page-home .home-tools__panel {
  padding: var(--space-3) var(--space-3) var(--space-4);
  background: var(--color-surface-alt);
  border-left: var(--home-tick) solid var(--color-primary);
}

.page-home .home-tools__panel-title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .home-tools__facts {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .home-tools__fact {
  display: grid;
  grid-template-columns: 4.5em minmax(0, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-2);
  border-top: 2px solid var(--color-line);
}

.page-home .home-tools__fact dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
}

.page-home .home-tools__fact dd {
  margin: 0;
  color: var(--color-ink-soft);
}

.page-home .home-tools__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 三条路径 ---------- */
.page-home .home-paths__list {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-home .home-paths__item {
  display: block;
  position: relative;
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-top: 6px solid var(--color-primary);
  color: var(--color-ink);
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.page-home .home-paths__item:nth-child(2) {
  border-top-color: var(--color-accent);
}

.page-home .home-paths__item:nth-child(3) {
  border-top-color: var(--color-contrast-surface);
}

.page-home .home-paths__item:hover,
.page-home .home-paths__item:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.page-home .home-paths__no {
  display: block;
  margin-bottom: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-home .home-paths__name {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .home-paths__desc {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .home-paths__q {
  margin: 0;
  padding-top: var(--space-2);
  border-top: 2px solid var(--color-line);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-ink);
}

/* ---------- 归档状态 ---------- */
.page-home .home-status__grid {
  display: grid;
  gap: var(--space-6);
}

.page-home .home-status__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .home-status__list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.page-home .home-status__item {
  display: grid;
  grid-template-columns: 4.5em minmax(0, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-2);
  border-top: var(--home-tick) solid var(--color-surface-deep);
}

.page-home .home-status__key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-accent);
}

.page-home .home-status__item p {
  margin: 0;
  max-width: 64ch;
  color: var(--color-ink-soft);
}

/* ---------- 联络与备案 ---------- */
.page-home .home-contact__panel {
  position: relative;
  overflow: hidden;
  padding: var(--space-4) var(--space-3) var(--space-3);
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-home .home-contact__panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: var(--home-tick);
  background: var(--color-contrast-surface);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 30%);
}

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

.page-home .home-contact__title {
  margin: var(--space-2) 0 var(--space-2);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .home-contact__text {
  margin: 0;
  max-width: 54ch;
  color: var(--color-primary-ink);
}

.page-home .home-contact__facts {
  margin: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .home-contact__fact {
  display: grid;
  grid-template-columns: 5em minmax(0, 1fr);
  gap: var(--space-2);
  padding-top: var(--space-2);
  border-top: 2px solid color-mix(in srgb, var(--color-primary-ink) 42%, transparent);
}

.page-home .home-contact__fact dt {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
}

.page-home .home-contact__fact dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.page-home .home-contact__foot {
  margin-top: var(--space-4);
  padding-top: var(--space-2);
  border-top: 2px solid color-mix(in srgb, var(--color-primary-ink) 42%, transparent);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}

.page-home .home-contact__foot a {
  color: var(--color-primary-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-home .home-contact__foot a:hover,
.page-home .home-contact__foot a:focus-visible {
  background: color-mix(in srgb, var(--color-primary-ink) 22%, transparent);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .home-hero__inner {
    padding: var(--space-6) var(--space-4) var(--space-6);
  }

  .page-home .home-line__item {
    grid-template-columns: 4.4em minmax(0, 1fr);
    gap: var(--space-3);
  }
}

@media (min-width: 900px) {
  .page-home .home-hero {
    padding: var(--space-6) 0 var(--space-8);
  }

  .page-home .home-hero__inner {
    padding: var(--space-8) var(--space-6) var(--space-8);
  }

  .page-home .home-hero__row {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--space-6);
  }

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

  .page-home .home-hero__figures::after {
    clip-path: polygon(58% 0, 100% 0, 100% 100%, 52% 100%);
  }

  .page-home .home-fig {
    padding: var(--space-4) var(--space-4) var(--space-6);
  }

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

  .page-home .home-paths__item:nth-child(1) {
    grid-column: 1 / span 5;
  }

  .page-home .home-paths__item:nth-child(2) {
    grid-column: 6 / span 4;
    margin-top: var(--space-6);
  }

  .page-home .home-paths__item:nth-child(3) {
    grid-column: 10 / span 3;
    margin-top: var(--space-8);
  }

  .page-home .home-contact__panel {
    padding: var(--space-6) var(--space-6) var(--space-4);
  }

  .page-home .home-contact__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    gap: var(--space-8);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-home .home-line__grid {
    grid-template-columns: minmax(0, 1fr) var(--home-aside);
    gap: var(--space-8);
    align-items: start;
  }

  .page-home .home-line__aside {
    position: sticky;
    top: var(--space-4);
  }

  .page-home .home-tools__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.62fr);
    gap: var(--space-8);
    align-items: start;
  }

  .page-home .home-tools__visual {
    margin-top: var(--space-8);
  }

  .page-home .home-status__grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
    gap: var(--space-8);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-paths__item,
  .page-home .home-paths__item:hover,
  .page-home .home-paths__item:focus-visible {
    transition: none;
    transform: none;
  }
}