.page-home {
  --home-num: clamp(32px, 5.4vw, 60px);
  --home-seam: 16px;
  --home-seam-thin: 8px;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  overflow-x: clip;
}

.page-home .mono {
  font-family: var(--font-mono);
}

.page-home .page-home__crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  padding-top: var(--space-3);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  color: var(--color-ink-muted);
}

.page-home .page-home__crumb .slash {
  color: var(--color-primary);
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-surface);
}

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

.page-home .home-hero__panel {
  position: absolute;
  inset: 0;
  display: block;
  background: var(--color-contrast-surface);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 0 76%);
}

.page-home .home-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-6) var(--space-8);
}

.page-home .home-hero__kicker {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-contrast-accent);
}

.page-home .home-hero__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: 0.94;
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
  transform: skewX(-2deg);
  transform-origin: left bottom;
  overflow-wrap: anywhere;
}

.page-home .home-hero__lede {
  max-width: 46ch;
  margin: 0 0 var(--space-3);
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, var(--color-contrast-surface));
  line-height: var(--leading-body);
}

.page-home .home-hero__stamp {
  margin: 0;
  padding-left: var(--space-2);
  border-left: var(--border-thick) solid var(--color-contrast-accent);
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
}

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

.page-home .home-hero__figure {
  margin: 0;
  padding: var(--space-1);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
}

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

.page-home .home-hero__figure-cap {
  display: block;
  padding-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .home-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-hero__stat {
  padding-left: var(--space-2);
  border-left: var(--border-thick) solid var(--color-primary);
  background: var(--color-primary-soft);
}

.page-home .home-hero__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: var(--weight-heading);
  font-size: var(--home-num);
  line-height: 1;
  color: var(--color-primary);
}

.page-home .home-hero__stat-label {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* ---------- 章节色带 ---------- */

.page-home .home-seam {
  display: block;
  height: var(--home-seam);
}

.page-home .home-seam--primary {
  background: var(--color-primary);
}

.page-home .home-seam--accent {
  background: var(--color-accent);
}

.page-home .home-seam--contrast {
  background: var(--color-contrast-surface);
}

/* ---------- 栏目分发 ---------- */

.page-home .home-routes {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--section-y);
}

.page-home .home-routes__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-home .home-routes__label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.24em;
  color: var(--color-contrast-accent);
}

.page-home .home-routes__title {
  display: inline-block;
  margin: 0 0 var(--space-3);
  padding-left: var(--space-2);
  border-left: var(--space-2) solid var(--color-primary);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-home .home-routes__lede {
  margin: 0;
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, var(--color-contrast-surface));
}

.page-home .home-routes__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-routes__item {
  margin: 0;
}

.page-home .home-routes__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx name"
    "desc desc"
    "meta meta";
  gap: var(--space-1) var(--space-2);
  align-items: center;
  height: 100%;
  padding: var(--space-3);
  border-left: 4px solid var(--color-primary);
  background: color-mix(in srgb, var(--color-contrast-ink) 7%, var(--color-contrast-surface));
  color: inherit;
  text-decoration: none;
  transition: background-color 180ms linear, border-left-color 180ms linear;
}

.page-home .home-routes__link:hover,
.page-home .home-routes__link:focus-visible {
  border-left-color: var(--color-contrast-accent);
  background: color-mix(in srgb, var(--color-contrast-ink) 14%, var(--color-contrast-surface));
}

.page-home .home-routes__link:focus-visible {
  outline: var(--border-thick) solid var(--color-contrast-accent);
  outline-offset: 2px;
}

.page-home .home-routes__idx {
  grid-area: idx;
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
}

.page-home .home-routes__name {
  grid-area: name;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-home .home-routes__desc {
  grid-area: desc;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, var(--color-contrast-surface));
}

.page-home .home-routes__meta {
  grid-area: meta;
  font-size: var(--text-sm);
  color: var(--color-primary);
}

/* ---------- 归档时间轴 ---------- */

.page-home .home-archive {
  position: relative;
  overflow: hidden;
  background: var(--color-surface);
  padding-block: var(--section-y);
}

.page-home .home-archive__backdrop {
  position: absolute;
  inset: 0;
  margin: 0;
  z-index: 0;
  opacity: 0.12;
  pointer-events: none;
}

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

.page-home .home-archive__head {
  position: relative;
  z-index: 1;
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-home .home-archive__label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.24em;
  color: var(--color-primary);
}

.page-home .home-archive__title {
  display: inline-block;
  margin: 0 0 var(--space-3);
  padding-left: var(--space-2);
  border-left: var(--space-2) solid var(--color-accent);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

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

.page-home .home-archive__scroller {
  position: relative;
  z-index: 1;
  overflow-x: auto;
  overflow-y: hidden;
  padding-block: var(--space-2) var(--space-3);
  padding-inline: max(var(--space-2), calc((100% - var(--container)) / 2));
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-surface-deep);
}

.page-home .home-archive__scroller:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: -4px;
}

.page-home .home-archive__track {
  display: flex;
  gap: var(--space-2);
  min-width: max-content;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-archive__node {
  display: grid;
  gap: var(--space-1);
  width: 148px;
  padding: var(--space-2) var(--space-2) var(--space-3);
  background: var(--color-surface-alt);
  border-bottom: 4px solid var(--color-accent);
}

.page-home .home-archive__node--open {
  background: var(--color-primary-soft);
  border-bottom-color: var(--color-primary);
}

.page-home .home-archive__year {
  font-size: var(--text-sm);
  color: var(--color-ink);
}

.page-home .home-archive__ticks {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  padding-block: var(--space-1);
}

.page-home .home-archive__ticks i {
  display: block;
  width: 4px;
  height: 22px;
  background: var(--color-primary);
}

.page-home .home-archive__node--open .home-archive__ticks i {
  background: var(--color-accent);
}

.page-home .home-archive__count {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .home-archive__facts {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 分类矩阵 ---------- */

.page-home .home-cats {
  background: var(--color-surface-alt);
  padding-block: var(--section-y);
}

.page-home .home-cats__head {
  display: grid;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.page-home .home-cats__label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.24em;
  color: var(--color-accent);
}

.page-home .home-cats__title {
  display: inline-block;
  margin: 0 0 var(--space-3);
  padding-left: var(--space-2);
  border-left: var(--space-2) solid var(--color-primary);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

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

.page-home .home-cats__figure {
  margin: 0;
  padding: var(--space-1);
  background: var(--color-surface);
  border: var(--border-thin) solid var(--color-line);
}

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

.page-home .home-cats__figure figcaption {
  padding-top: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .home-cats__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-cats__item {
  display: grid;
  gap: 4px;
  padding: var(--space-2);
  background: var(--color-surface);
  border-left: 4px solid var(--color-primary);
  color: var(--color-ink);
  transition: background-color 160ms linear, color 160ms linear, border-left-color 160ms linear;
}

.page-home .home-cats__item:hover {
  background: var(--color-primary);
  border-left-color: var(--color-accent);
  color: var(--color-primary-ink);
}

.page-home .home-cats__item:hover .home-cats__num,
.page-home .home-cats__item:hover .home-cats__focus,
.page-home .home-cats__item:hover .home-cats__tier {
  color: var(--color-primary-ink);
}

.page-home .home-cats__name {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
}

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

.page-home .home-cats__focus {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.page-home .home-cats__tier {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 配置与实测摘要 ---------- */

.page-home .home-tuning {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding-block: var(--section-y-lg) var(--section-y);
}

.page-home .home-tuning__head {
  max-width: var(--measure);
  margin-bottom: var(--space-6);
}

.page-home .home-tuning__label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-sm);
  letter-spacing: 0.24em;
  color: var(--color-contrast-accent);
}

.page-home .home-tuning__title {
  display: inline-block;
  margin: 0 0 var(--space-3);
  padding-left: var(--space-2);
  border-left: var(--space-2) solid var(--color-primary);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-home .home-tuning__lede {
  margin: 0;
  color: color-mix(in srgb, var(--color-contrast-ink) 74%, var(--color-contrast-surface));
}

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

.page-home .home-tuning__figure {
  position: relative;
  margin: 0;
  border: var(--border-thin) solid var(--color-contrast-line);
  background: var(--color-contrast-surface);
}

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

.page-home .home-tuning__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-2);
  background: var(--overlay-scrim);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

.page-home .home-tuning__tiers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-tuning__tier {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3);
  border-left: 4px solid var(--color-contrast-accent);
  background: color-mix(in srgb, var(--color-contrast-ink) 8%, var(--color-contrast-surface));
}

.page-home .home-tuning__tier--rec {
  border-left-color: var(--color-primary);
}

.page-home .home-tuning__tier--adv {
  border-left-color: var(--color-contrast-accent);
}

.page-home .home-tuning__tier--flagship {
  border-left-color: var(--color-primary);
  background: color-mix(in srgb, var(--color-contrast-ink) 14%, var(--color-contrast-surface));
}

.page-home .home-tuning__tier-name {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-home .home-tuning__spec {
  display: grid;
  grid-template-columns: minmax(96px, auto) minmax(0, 1fr);
  gap: 4px var(--space-2);
  margin: 0;
}

.page-home .home-tuning__spec dt {
  font-size: var(--text-sm);
  color: color-mix(in srgb, var(--color-contrast-ink) 62%, var(--color-contrast-surface));
}

.page-home .home-tuning__spec dd {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-contrast-accent);
}

/* ---------- 口径与联络收口 ---------- */

.page-home .home-outro {
  background: var(--color-surface);
  padding-block: var(--section-y);
}

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

.page-home .home-outro__block {
  padding-top: var(--space-3);
  border-top: 4px solid var(--color-primary);
}

.page-home .home-outro__block--split {
  border-top-color: var(--color-accent);
}

.page-home .home-outro__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .home-outro__block p {
  max-width: var(--measure);
  margin: 0 0 var(--space-2);
  color: var(--color-ink-soft);
}

.page-home .home-outro__block a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: var(--border-thick) solid var(--color-primary);
}

.page-home .home-outro__block a:hover,
.page-home .home-outro__block a:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.page-home .home-outro__block a:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: 3px;
}

.page-home .home-outro__note {
  margin: var(--space-6) 0 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-home .home-routes__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 880px) {
  .page-home .home-hero__panel {
    clip-path: polygon(0 0, 58% 0, 50% 100%, 0 100%);
  }

  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.94fr);
    gap: var(--space-8);
    align-items: start;
    padding-block: var(--section-y-lg) var(--section-y);
  }

  .page-home .home-hero__lead {
    max-width: calc(var(--container) * 0.46);
  }

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

  .page-home .home-cats__head {
    grid-template-columns: minmax(0, 5fr) minmax(0, 4fr);
    gap: var(--space-6);
    align-items: end;
  }

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

  .page-home .home-tuning__layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-home .home-outro__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--space-8);
  }
}

@media (min-width: 1000px) {
  .page-home .home-cats__grid {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }

  .page-home .home-cats__item:nth-child(8) {
    grid-column-start: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-routes__link,
  .page-home .home-cats__item {
    transition: none;
  }

  .page-home .home-hero__title {
    transform: none;
  }
}