.page-home {
  --home-axis: 122px;
  --home-gap: clamp(1.25rem, 2.6vw, 2.5rem);
  --home-pad-y: clamp(2.25rem, 5.5vw, 3.75rem);
  --home-pad-x: clamp(1.25rem, 3.5vw, 3rem);

  background: var(--moon);
  color: var(--text);
  font-family: var(--sans);
  overflow-x: clip;
}

/* ---------- 外壳与索引轴 ---------- */

.home-shell {
  max-width: 1320px;
  margin: 0 auto;
}

.home-main {
  min-width: 0;
}

.page-home .home-index {
  display: flex;
  gap: .4rem;
  overflow-x: auto;
  padding: .9rem var(--gutter) .85rem;
  border-bottom: 1px solid var(--line-cool);
  scrollbar-width: none;
}

.page-home .home-index::-webkit-scrollbar {
  display: none;
}

.page-home .home-index .index-link {
  flex: 0 0 auto;
  display: block;
  padding: .38rem .7rem;
  font-size: .75rem;
  letter-spacing: .06em;
  color: rgba(11, 31, 51, .56);
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid var(--line-cool);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-home .home-index .index-link:hover,
.page-home .home-index .index-link:focus-visible {
  color: var(--ink);
  border-color: var(--gold);
  background: rgba(201, 162, 39, .1);
}

.page-home .home-index .index-link[data-active] {
  color: var(--ink);
  border-color: var(--gold);
  background: rgba(201, 162, 39, .14);
}

@media (min-width: 1024px) {
  .home-shell {
    display: grid;
    grid-template-columns: var(--home-axis) minmax(0, 1fr);
    column-gap: var(--home-gap);
    align-items: start;
    padding: 0 var(--gutter);
  }

  .page-home .home-index {
    position: sticky;
    top: 96px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: visible;
    border-bottom: 0;
    border-top: 1px solid var(--line-cool);
    padding: 1.25rem 0 0;
    margin-top: clamp(1.5rem, 3vw, 2.5rem);
  }

  .page-home .home-index .index-link {
    border: 0;
    border-left: 2px solid var(--line-cool);
    border-radius: 0;
    padding: .55rem 0 .55rem .8rem;
    font-size: .8125rem;
    letter-spacing: .04em;
    color: rgba(11, 31, 51, .5);
    background: transparent;
  }

  .page-home .home-index .index-link:hover,
  .page-home .home-index .index-link:focus-visible,
  .page-home .home-index .index-link[data-active] {
    background: transparent;
    border-left-color: var(--gold);
    color: var(--ink);
  }
}

/* ---------- 通用小标题 ---------- */

.page-home .eyebrow {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 .7rem;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--blue);
}

.page-home .eyebrow::before {
  content: "";
  width: 1.5rem;
  height: 1px;
  background: currentColor;
  opacity: .6;
}

.page-home .eyebrow--dark {
  color: var(--gold-soft);
}

.page-home .home-paths h2,
.page-home .home-archive h2,
.page-home .home-access h2,
.page-home .home-versions h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--ink);
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.75rem) var(--home-pad-x) clamp(2.25rem, 5vw, 3.75rem);
  background: var(--ink);
  color: var(--moon);
  overflow: hidden;
  scroll-margin-top: 84px;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  inset: auto -15% -55% 45%;
  height: 85%;
  background: radial-gradient(closest-side, rgba(201, 162, 39, .18), transparent 72%);
  pointer-events: none;
}

.page-home .home-crumb {
  position: relative;
  z-index: 1;
  margin: 0 0 clamp(1.25rem, 3vw, 1.9rem);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--on-dark-dim);
}

.page-home .home-crumb a {
  color: var(--gold-soft);
  text-decoration: none;
}

.page-home .home-crumb a:hover {
  text-decoration: underline;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.5rem);
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(230px, .62fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.25rem);
  }
}

.page-home .hero-stamp {
  display: inline-block;
  margin: 0 0 1rem;
  padding-bottom: .55rem;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--gold);
  border-bottom: 1px solid var(--line);
}

.page-home .home-hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2rem, 6.4vw, 4rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--moon);
}

.page-home .hero-lede {
  margin: clamp(1rem, 2.4vw, 1.5rem) 0 0;
  max-width: 34rem;
  font-size: clamp(.9688rem, 1.35vw, 1.0625rem);
  line-height: 1.85;
  color: var(--on-dark);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: clamp(1.5rem, 3vw, 2rem);
}

.page-home .hero-note {
  margin: .9rem 0 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--on-dark-dim);
}

.hero-side {
  display: grid;
  gap: .5rem;
  justify-items: start;
}

.page-home .hero-serial {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(3rem, 9vw, 5rem);
  line-height: .82;
  letter-spacing: -.06em;
  color: var(--gold);
}

.page-home .hero-serial-cap {
  margin: 0 0 .4rem;
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--on-dark-dim);
}

.page-home .hero-figure {
  width: 100%;
  border-color: var(--line);
  background: rgba(247, 244, 236, .05);
}

/* ---------- 最新批次 ---------- */

.page-home .home-batch {
  position: relative;
  padding: var(--home-pad-y) var(--home-pad-x);
  background: var(--gold);
  color: var(--ink);
  overflow: hidden;
  scroll-margin-top: 84px;
}

.page-home .home-batch::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(11, 31, 51, .055) 0 1px, transparent 1px 10px);
  pointer-events: none;
}

.batch-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
}

@media (min-width: 900px) {
  .batch-inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: start;
  }
}

.page-home .batch-stamp {
  margin: 0 0 .75rem;
  font-family: var(--mono);
  font-size: .8125rem;
  letter-spacing: .1em;
  color: rgba(11, 31, 51, .62);
}

.page-home .home-batch h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .batch-lede {
  margin: .85rem 0 0;
  max-width: 34rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(11, 31, 51, .78);
}

.batch-kinds {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding: 0;
  border-top: 1px solid rgba(11, 31, 51, .2);
}

.batch-kinds li {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: .75rem;
  padding: .9rem 0;
  border-bottom: 1px solid rgba(11, 31, 51, .2);
}

.batch-kinds h3 {
  margin: 0;
  font-size: .9375rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--ink);
}

.batch-kinds p {
  margin: .25rem 0 0;
  font-size: .875rem;
  line-height: 1.7;
  color: rgba(11, 31, 51, .7);
}

.page-home .kind-no {
  font-family: var(--mono);
  font-size: .8125rem;
  color: rgba(11, 31, 51, .5);
  padding-top: .15rem;
}

.batch-figure {
  margin: 0;
}

.batch-figure .media-frame {
  border-color: rgba(11, 31, 51, .25);
}

.page-home .batch-figure figcaption {
  margin: .7rem 0 0;
  font-size: .75rem;
  line-height: 1.65;
  color: rgba(11, 31, 51, .62);
}

/* ---------- 两条路径 ---------- */

.page-home .home-paths {
  padding: var(--home-pad-y) var(--home-pad-x);
  background: var(--moon);
  scroll-margin-top: 84px;
}

.path-grid {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.5rem);
  margin-top: clamp(1.5rem, 3.4vw, 2.25rem);
}

@media (min-width: 820px) {
  .path-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.path-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: clamp(1.35rem, 3vw, 2rem);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.path-card--warm {
  background: linear-gradient(158deg, #F1E2B4 0%, var(--gold-soft) 100%);
  color: var(--ink);
}

.path-card--cool {
  background: linear-gradient(158deg, var(--blue) 0%, var(--ink-2) 100%);
  color: var(--moon);
}

.path-card:hover,
.path-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 16px 32px rgba(11, 31, 51, .18);
}

.path-no {
  font-family: var(--mono);
  font-size: .8125rem;
  letter-spacing: .16em;
  opacity: .7;
}

.path-card h3 {
  margin: .2rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: .01em;
}

.path-desc {
  margin: .3rem 0 0;
  font-size: .9375rem;
  line-height: 1.75;
}

.path-fit {
  margin: .75rem 0 0;
  padding-top: .75rem;
  font-size: .8125rem;
  line-height: 1.7;
  border-top: 1px solid currentColor;
  opacity: .62;
  transition: opacity var(--dur) var(--ease);
}

.path-card:hover .path-fit,
.path-card:focus-visible .path-fit {
  opacity: 1;
}

.path-go {
  margin-top: auto;
  padding-top: 1.1rem;
  font-size: .875rem;
  font-weight: 600;
  letter-spacing: .02em;
}

.path-card--cool .path-go {
  color: var(--gold-soft);
}

.path-card--warm .path-go {
  color: var(--ink);
}

/* ---------- 月份目录 ---------- */

.page-home .home-archive {
  padding: var(--home-pad-y) var(--home-pad-x);
  background: var(--paper);
  border-top: 1px solid var(--line-cool);
  border-bottom: 1px solid var(--line-cool);
  scroll-margin-top: 84px;
}

.page-home .archive-lede {
  margin: .8rem 0 0;
  max-width: 40rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(26, 26, 26, .74);
}

.archive-layout {
  display: grid;
  gap: clamp(1.5rem, 3.4vw, 2.5rem);
  margin-top: clamp(1.5rem, 3.4vw, 2.25rem);
}

@media (min-width: 900px) {
  .archive-layout {
    grid-template-columns: minmax(0, 236px) minmax(0, 1fr);
    align-items: start;
  }

  .archive-figure {
    position: sticky;
    top: 104px;
  }
}

.page-home .archive-figure {
  width: 100%;
}

.archive-ticks {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: clamp(1.25rem, 2.5vw, 1.75rem);
  padding-bottom: 1rem;
  border-bottom: 1px dashed var(--line-cool);
}

.archive-tick {
  padding: .42rem .72rem;
  font-family: var(--mono);
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--ink);
  text-decoration: none;
  background: var(--moon);
  border: 1px solid var(--line-cool);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.archive-tick:hover,
.archive-tick:focus-visible {
  background: var(--gold-soft);
  border-color: var(--gold);
}

.archive-tick--all {
  color: var(--blue);
  border-color: var(--blue);
  background: transparent;
}

.archive-tick--all:hover,
.archive-tick--all:focus-visible {
  color: var(--moon);
  background: var(--blue);
  border-color: var(--blue);
}

.archive-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.archive-row {
  display: grid;
  gap: .3rem .9rem;
  padding: .95rem 0;
  border-bottom: 1px solid var(--line-cool);
  scroll-margin-top: 104px;
}

.archive-row:first-child {
  border-top: 1px solid var(--line-cool);
}

@media (min-width: 640px) {
  .archive-row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    align-items: baseline;
  }
}

.archive-month {
  font-family: var(--mono);
  font-size: .875rem;
  letter-spacing: .02em;
  color: var(--blue);
}

.archive-row p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, .8);
}

/* ---------- 版本差异 ---------- */

.page-home .home-versions {
  padding: var(--home-pad-y) var(--home-pad-x);
  background: var(--ink-2);
  color: var(--moon);
  scroll-margin-top: 84px;
}

.page-home .home-versions h2 {
  color: var(--moon);
}

.page-home .versions-lede {
  margin: clamp(.9rem, 2vw, 1.15rem) 0 0;
  max-width: 42rem;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--on-dark);
}

.version-pair {
  display: grid;
  gap: .9rem;
  margin: clamp(1.5rem, 3vw, 2rem) 0;
}

@media (min-width: 760px) {
  .version-pair {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: stretch;
    gap: 1.25rem;
  }
}

.version-slab {
  padding: 1.15rem 1.3rem;
  background: rgba(247, 244, 236, .05);
  border: 1px solid var(--line);
}

.version-slab--now {
  background: rgba(201, 162, 39, .1);
  border-color: var(--gold);
  border-left: 3px solid var(--cinnabar);
}

.version-key {
  margin: 0 0 .45rem;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--gold-soft);
}

.version-text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--on-dark);
}

.version-arrow {
  align-self: center;
  justify-self: center;
  font-family: var(--mono);
  font-size: 1.25rem;
  color: var(--cinnabar);
}

/* ---------- 访问建议 ---------- */

.page-home .home-access {
  padding: var(--home-pad-y) var(--home-pad-x);
  background: var(--moon);
  scroll-margin-top: 84px;
}

.access-grid {
  display: grid;
  gap: clamp(1rem, 2.4vw, 1.5rem);
  margin-top: clamp(1.5rem, 3vw, 2rem);
}

@media (min-width: 780px) {
  .access-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.access-card {
  padding: clamp(1.2rem, 2.6vw, 1.7rem);
  background: linear-gradient(180deg, rgba(239, 231, 214, .95), rgba(239, 231, 214, .6));
  border: 1px solid var(--line-cool);
  border-left: 3px solid var(--blue);
}

.access-key {
  margin: 0 0 .5rem;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--blue);
}

.access-card h3 {
  margin: 0 0 .5rem;
  font-family: var(--serif);
  font-size: clamp(1.1rem, 2.1vw, 1.35rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.access-card p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, .78);
}

.page-home .access-speed {
  margin: clamp(1.25rem, 2.6vw, 1.75rem) 0 0;
  padding: .9rem 1.1rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink);
  background: rgba(201, 162, 39, .1);
  border-left: 3px solid var(--gold);
}

.page-home .access-speed strong {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--ink);
}

/* ---------- 信任条 ---------- */

.page-home .home-trust {
  background: var(--ink);
  color: var(--moon);
  padding-bottom: clamp(2rem, 4vw, 2.75rem);
  overflow: hidden;
}

.trust-figure {
  margin: 0;
}

.trust-figure img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 250px);
  object-fit: cover;
  object-position: center 62%;
  opacity: .55;
}

.trust-body {
  padding: clamp(1.5rem, 3vw, 2.25rem) var(--home-pad-x) 0;
}

.page-home .trust-icp {
  margin: 0 0 .7rem;
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--gold-soft);
}

.page-home .trust-lede {
  margin: 0;
  max-width: 46rem;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--on-dark);
}

.trust-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.trust-links a {
  font-size: .875rem;
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 207, 138, .4);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.trust-links a:hover,
.trust-links a:focus-visible {
  color: var(--moon);
  border-color: var(--gold);
}

/* ---------- 入场 ---------- */

@media (prefers-reduced-motion: no-preference) {
  .page-home [data-reveal] {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 320ms var(--ease), transform 320ms var(--ease);
  }

  .page-home [data-reveal].is-in {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .path-card,
  .page-home .archive-tick,
  .page-home .trust-links a,
  .page-home .home-index .index-link {
    transition: none;
  }
}