.page-home {
  --jiang-veil: rgba(11, 58, 54, 0.58);
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-home [data-cat="warranty"] { --cat: var(--copper); }
.page-home [data-cat="craft"] { --cat: var(--steel); }
.page-home [data-cat="patent"] { --cat: var(--cinnabar); }
.page-home [data-cat="params"] { --cat: var(--violet); }

.page-home h1,
.page-home h2,
.page-home h3,
.page-home p,
.page-home dl,
.page-home dd,
.page-home dt,
.page-home ol,
.page-home ul,
.page-home li,
.page-home figure {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.18em;
  color: var(--jiang);
  line-height: 1.4;
}

.page-home .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-home .prose {
  font-size: var(--fs-17);
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 40ch;
}

.page-home .home-section-head {
  max-width: 60ch;
  margin-bottom: var(--space-m);
}

.page-home .home-section-head--tight {
  margin-bottom: var(--space-s);
}

.page-home .home-section-head__title {
  font-weight: 900;
  font-stretch: 87%;
  letter-spacing: -0.02em;
  line-height: 1.02;
  font-size: clamp(26px, 5.2vw, 40px);
  margin: 10px 0 14px;
}

.page-home .home-section-head__prose {
  margin-top: 4px;
}

/* ---------- 首屏总目录 ---------- */
.page-home .home-lede {
  max-width: var(--shell);
  margin: 0 auto;
  padding: var(--space-l) var(--gutter) var(--space-m);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-s);
}

.page-home .home-lede__aside {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  border-top: 3px solid var(--jiang);
  padding-top: 10px;
}

.page-home .home-lede__note {
  font-size: var(--fs-12);
  letter-spacing: 0.2em;
  line-height: 1.7;
  color: var(--ink-soft);
  writing-mode: horizontal-tb;
}

.page-home .home-lede__sigil {
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--orange);
  white-space: nowrap;
}

.page-home .home-lede__title {
  font-weight: 900;
  font-stretch: 87%;
  letter-spacing: -0.02em;
  line-height: 0.98;
  font-size: clamp(34px, 8.4vw, 72px);
  max-width: 16ch;
  margin: 14px 0 0;
}

.page-home .home-lede__lede {
  font-size: var(--fs-17);
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 42ch;
  margin-top: 20px;
}

.page-home .home-index {
  margin-top: var(--space-m);
  border-top: 1px solid var(--mist-deep);
}

.page-home .home-index__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: baseline;
  column-gap: 14px;
  row-gap: 4px;
  padding: 15px 4px 15px 14px;
  border-bottom: 1px solid var(--mist-deep);
  border-left: 5px solid var(--cat, var(--jiang));
  transition: background-color 0.18s var(--ease);
}

.page-home .home-index__row:hover {
  background: var(--paper);
}

.page-home .home-index__no {
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--cat, var(--jiang));
}

.page-home .home-index__name {
  font-size: var(--fs-17);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-home .home-index__meta {
  grid-column: 2;
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.page-home .home-lede__total {
  margin-top: 16px;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

/* ---------- 首屏图带 ---------- */
.page-home .home-plate {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-home .home-plate img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 250px);
  object-fit: cover;
  border-radius: var(--radius-organic);
  filter: saturate(0.7) contrast(1.04);
}

.page-home .home-plate__caption {
  display: block;
  margin-top: 9px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

/* ---------- 四路归口带 ---------- */
.page-home .home-cats {
  max-width: var(--shell);
  margin: 0 auto;
  padding: var(--space-l) var(--gutter) var(--space-m);
}

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

.page-home .cat-band {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: 24px 20px 24px 42px;
  background: var(--paper);
  border: 1px solid var(--mist-deep);
  border-radius: var(--radius-s);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-home .cat-band:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-home .cat-band__stripe {
  position: absolute;
  left: 16px;
  top: 24px;
  bottom: 24px;
  width: 8px;
  border-radius: 4px;
  background: var(--cat, var(--jiang));
}

.page-home .cat-band__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.page-home .cat-band__code {
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--cat, var(--jiang));
}

.page-home .cat-band__title {
  font-size: clamp(20px, 3.4vw, 24px);
  font-weight: 900;
  font-stretch: 87%;
  letter-spacing: -0.01em;
  line-height: 1.15;
}

.page-home .cat-band__body p {
  font-size: var(--fs-17);
  line-height: 1.95;
  color: var(--ink-soft);
  max-width: 44ch;
}

.page-home .cat-band__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 14px;
}

.page-home .cat-band__facts > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-home .cat-band__facts dt {
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.page-home .cat-band__facts dd {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--ink);
}

.page-home .cat-band__link {
  justify-self: start;
  align-self: end;
}

/* ---------- 分类编号轴 ---------- */
.page-home .home-axis {
  max-width: var(--shell);
  margin: 0 auto;
  padding: var(--space-m) var(--gutter) var(--space-l);
}

.page-home .home-axis__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-s);
}

.page-home .home-axis__figure img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius-organic-alt);
  filter: saturate(0.55) contrast(1.05);
}

.page-home .home-axis__caption,
.page-home .home-params__caption {
  display: block;
  margin-top: 9px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.page-home .home-axis__filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.page-home .home-axis__filterkey {
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--jiang);
  margin-right: 2px;
}

.page-home .home-axis__filters button {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  padding: 6px 13px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--mist-deep);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease), background-color 0.16s var(--ease);
}

.page-home .home-axis__filters button:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.page-home .home-axis__filters button:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-home .home-axis__filters button.is-active {
  background: var(--orange);
  border-color: var(--orange);
  color: #FFFFFF;
}

.page-home .home-axis__filters button.home-axis__clear {
  border-style: dashed;
  color: var(--ink-soft);
}

.page-home .home-axis__filters button.home-axis__clear:hover {
  color: var(--cinnabar);
  border-color: var(--cinnabar);
}

.page-home .home-axis__count {
  margin: 16px 0 10px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink-soft);
}

.page-home .home-axis__band {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 2px 18px;
  scroll-snap-type: x proximity;
  border-bottom: 1px solid var(--mist-deep);
  -webkit-overflow-scrolling: touch;
}

.page-home .home-axis__band:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-home .home-axis__list {
  display: flex;
  gap: 12px;
  min-width: max-content;
}

.page-home .axis-tick {
  position: relative;
  flex: 0 0 196px;
  scroll-snap-align: start;
  display: grid;
  gap: 8px;
  padding: 16px 14px 16px;
  background: var(--paper);
  border: 1px solid var(--mist-deep);
  border-top: 5px solid var(--cat, var(--jiang));
  border-radius: 4px 4px 16px 8px;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-home .axis-tick:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-home .axis-tick__code {
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--cat, var(--jiang));
}

.page-home .axis-tick__name {
  font-size: var(--fs-14);
  line-height: 1.55;
  color: var(--ink);
}

.page-home .axis-tick__note {
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  opacity: 0;
  transition: opacity 0.18s var(--ease);
}

.page-home .axis-tick:hover .axis-tick__note,
.page-home .axis-tick:focus-within .axis-tick__note {
  opacity: 1;
}

.page-home .axis-tick__tier {
  justify-self: end;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--mist-deep);
}

.page-home .axis-tick:hover .axis-tick__tier {
  border-bottom-color: var(--orange);
}

/* ---------- 参数组 ---------- */
.page-home .home-params {
  max-width: var(--shell);
  margin: 0 auto;
  padding: var(--space-m) var(--gutter) var(--space-l);
  border-top: 1px solid var(--mist-deep);
}

.page-home .home-params__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-s);
}

.page-home .home-params__scroll {
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}

.page-home .pr-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-width: max-content;
}

.page-home .pr-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--violet);
  color: var(--paper);
  border-radius: 6px 16px 6px 14px;
}

.page-home .pr-badge__code {
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: rgba(247, 246, 241, 0.78);
}

.page-home .pr-badge__name {
  font-size: var(--fs-14);
  letter-spacing: 0.01em;
}

.page-home .pr-badge__num {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(247, 246, 241, 0.16);
  color: var(--paper);
}

.page-home .home-params__figure img {
  display: block;
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-organic);
  filter: saturate(0.5) contrast(1.08);
}

/* ---------- 归档节奏 ---------- */
.page-home .home-cadence {
  position: relative;
  background: var(--jiang);
  color: var(--paper);
  overflow: hidden;
  padding: var(--space-l) 0;
}

.page-home .home-cadence__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.page-home .home-cadence__inner {
  position: relative;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-home .home-cadence__eyebrow {
  color: var(--orange);
}

.page-home .home-cadence__title {
  font-weight: 900;
  font-stretch: 87%;
  letter-spacing: -0.02em;
  line-height: 1.02;
  font-size: clamp(26px, 5.2vw, 40px);
  max-width: 22ch;
  margin: 10px 0 0;
}

.page-home .home-cadence__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: var(--space-m);
  background: rgba(247, 246, 241, 0.2);
}

.page-home .home-cadence__item {
  background: var(--jiang-veil);
  padding: 20px 18px;
  display: grid;
  gap: 8px;
}

.page-home .home-cadence__k {
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-home .home-cadence__item p {
  font-size: var(--fs-14);
  line-height: 1.85;
  color: rgba(247, 246, 241, 0.86);
}

.page-home .home-cadence__latest {
  margin-top: var(--space-s);
  max-width: 60ch;
  font-size: var(--fs-14);
  line-height: 1.95;
  color: rgba(247, 246, 241, 0.8);
}

.page-home .home-cadence__link {
  margin-top: var(--space-s);
}

/* ---------- 口径与出口 ---------- */
.page-home .home-outro {
  background: var(--wine);
  color: var(--paper);
  padding: var(--space-l) var(--gutter);
}

.page-home .home-outro__inner {
  max-width: var(--shell);
  margin: 0 auto;
}

.page-home .home-outro__eyebrow {
  color: var(--orange);
}

.page-home .home-outro__title {
  font-weight: 900;
  font-stretch: 87%;
  letter-spacing: -0.02em;
  line-height: 1.04;
  font-size: clamp(24px, 4.6vw, 40px);
  max-width: 24ch;
  margin: 10px 0 18px;
}

.page-home .home-outro__text {
  max-width: 58ch;
  font-size: var(--fs-17);
  line-height: 1.95;
  color: rgba(247, 246, 241, 0.85);
}

.page-home .home-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: var(--space-s);
}

.page-home .home-outro__btn {
  border-color: rgba(247, 246, 241, 0.42);
  color: var(--paper);
  background: transparent;
}

.page-home .home-outro__btn:hover {
  border-color: var(--orange);
  color: var(--orange);
}

.page-home .home-outro__links .btn--solid {
  background: var(--orange);
  border-color: var(--orange);
  color: #FFFFFF;
}

/* ---------- 渐进增强 ---------- */
.js .page-home [data-filter-item] {
  transition: opacity 0.2s var(--ease);
}

@media (min-width: 640px) {
  .page-home .home-index__row {
    grid-template-columns: 44px minmax(0, 1fr) auto;
    align-items: baseline;
  }

  .page-home .home-index__meta {
    grid-column: auto;
    text-align: right;
  }

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

@media (min-width: 860px) {
  .page-home .home-cats__list {
    gap: 20px;
  }

  .page-home .cat-band {
    grid-template-columns: 200px minmax(0, 1fr) 170px;
    align-items: start;
    column-gap: 28px;
    padding: 26px 26px 26px 46px;
  }

  .page-home .cat-band__head {
    flex-direction: column;
    gap: 8px;
  }

  .page-home .cat-band__link {
    justify-self: end;
  }

  .page-home .home-params__grid {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: start;
    column-gap: var(--space-m);
  }

  .page-home .home-params__figure img {
    height: 220px;
  }
}

@media (min-width: 900px) {
  .page-home .home-lede {
    grid-template-columns: 160px minmax(0, 1fr);
    column-gap: 48px;
    padding-top: var(--space-xl);
  }

  .page-home .home-lede__aside {
    flex-direction: column;
    justify-content: space-between;
    border-top: 0;
    border-left: 3px solid var(--jiang);
    padding: 2px 0 2px 16px;
    min-height: 380px;
  }

  .page-home .home-lede__note {
    writing-mode: vertical-rl;
    letter-spacing: 0.32em;
    max-height: 300px;
  }

  .page-home .home-axis__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    column-gap: 40px;
    align-items: start;
  }

  .page-home .home-axis__figure {
    position: sticky;
    top: 24px;
  }

  .page-home .home-axis__figure img {
    height: 420px;
  }
}

@media (min-width: 1100px) {
  .page-home .home-index__row {
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .page-home .axis-tick {
    flex: 0 0 214px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .cat-band,
  .page-home .axis-tick,
  .page-home .home-index__row,
  .page-home .axis-tick__note,
  .page-home .home-axis__filters button {
    transition: none;
  }

  .page-home .cat-band:hover,
  .page-home .axis-tick:hover {
    transform: none;
  }
}