/* ===========================================================
   page-home —— 品牌门厅首页
   所有页面专属选择器均限定在 .page-home 作用域内
   =========================================================== */

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

/* ---------- 右侧锚点目录 ---------- */
.page-home .anchor-nav {
  display: none;
}

.page-home .anchor-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .anchor-nav__link {
  display: block;
  padding: var(--space-1) 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  color: var(--color-ink-muted);
  text-decoration: none;
  transition: color 150ms ease;
}

.page-home .anchor-nav__link:hover,
.page-home .anchor-nav__link.is-current {
  color: var(--color-accent);
}

/* ---------- 首屏拼贴 ---------- */
.page-home .hero {
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-home .hero__eyebrow {
  margin-bottom: var(--space-3);
  color: var(--color-ink-muted);
}

.page-home .hero__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

.page-home .hero__intro {
  max-width: var(--measure);
  margin: 0 0 var(--space-6);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

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

.page-home .hero__figure {
  display: grid;
  grid-template-columns: minmax(3ch, auto) 1fr;
  align-items: baseline;
  column-gap: var(--space-4);
}

.page-home .hero__figure-num {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-primary);
}

.page-home .hero__figure-cap {
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  line-height: 1.4;
}

/* 首屏右侧批次编号列 */
.page-home .hero__side {
  display: grid;
  gap: var(--space-4);
  align-content: start;
}

.page-home .hero__side-label {
  margin: 0;
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-home .hero__batch-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}

.page-home .hero__batch {
  display: grid;
  grid-template-columns: 5ch 1fr;
  column-gap: var(--space-2);
  align-items: baseline;
}

.page-home .hero__batch-no {
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.page-home .hero__batch-topic {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  line-height: 1.4;
}

.page-home .hero__side-more {
  margin: 0;
  font-size: var(--text-sm);
}

.page-home .hero__figure {
  margin: var(--space-4) 0 0;
}

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

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

.page-home .figure__caption {
  margin-top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ---------- 通用区块 ---------- */
.page-home .section {
  padding-top: var(--section-y);
  padding-bottom: var(--section-y);
}

.page-home .section-no {
  margin: 0 0 var(--space-4);
  font-family: var(--font-mono);
  color: var(--color-primary);
  line-height: 1;
}

/* ---------- 01 三条主线 ---------- */
.page-home .tracks__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .tracks__lead {
  max-width: var(--measure);
  margin: 0 0 var(--space-8);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .track {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  padding: var(--space-6) 0;
}

.page-home .track + .track {
  margin-top: var(--space-4);
}

.page-home .track__name {
  margin: var(--space-3) 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
}

.page-home .track__desc {
  max-width: var(--measure);
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .track__meta {
  margin: 0 0 var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.04em;
}

.page-home .track__aside-label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-home .track__aside-text {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
}

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

/* 折叠内容组（原生 details，无需脚本即可阅读） */
.page-home .home-details {
  margin-top: var(--space-2);
}

.page-home .home-details__summary {
  display: grid;
  grid-template-columns: 4ch 1fr;
  column-gap: var(--space-2);
  align-items: baseline;
  padding: var(--space-2) 0;
  cursor: pointer;
  list-style: none;
  color: var(--color-ink);
  transition: color 150ms ease;
}

.page-home .home-details__summary::-webkit-details-marker {
  display: none;
}

.page-home .home-details__summary:hover {
  color: var(--color-accent);
}

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

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

.page-home .home-details__text {
  font-size: var(--text-sm);
}

.page-home .home-details__panel {
  padding-top: var(--space-3);
}

/* ---------- 02 季度批次带 ---------- */
.page-home .batches {
  background: var(--color-surface-alt);
}

.page-home .batches__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .batches__lead {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .batches__rail-wrap {
  margin-top: var(--space-8);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-home .batches__rail {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0 var(--gutter) var(--space-4);
  min-width: max-content;
}

.page-home .batches__item {
  flex: 0 0 auto;
  min-width: 168px;
  display: grid;
  gap: var(--space-2);
}

.page-home .batches__no {
  display: block;
  font-size: var(--text-lg);
  letter-spacing: 0.03em;
  color: var(--color-primary);
}

.page-home .batches__theme {
  display: block;
  font-size: var(--text-sm);
  line-height: 1.6;
  color: var(--color-ink-soft);
}

.page-home .batches__foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-6);
}

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

.page-home .batches__figure img,
.page-home .indexer__figure img,
.page-home .desktop__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--color-contrast-surface);
}

.page-home .batches__note-label {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-home .batches__note-text {
  margin: 0 0 var(--space-3);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .batches__note-more {
  margin: 0;
  font-size: var(--text-sm);
}

/* ---------- 03 桌面端说明 ---------- */
.page-home .desktop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-home .desktop__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .desktop__text {
  max-width: var(--measure);
  margin: 0 0 var(--space-6);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .desktop__specs {
  margin: 0 0 var(--space-6);
  display: grid;
  gap: var(--space-3);
}

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

.page-home .desktop__spec-key {
  margin: 0;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-home .desktop__spec-val {
  margin: 0;
  font-size: var(--text-base);
  color: var(--color-ink);
}

.page-home .desktop__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-6);
}

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

/* ---------- 04 索引双通道 ---------- */
.page-home .indexer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

.page-home .indexer__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .indexer__text {
  max-width: var(--measure);
  margin: 0 0 var(--space-8);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .index-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.page-home .index-channel__head {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-primary);
}

.page-home .index-channel__head-sm {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-ink);
}

.page-home .index-channel__sub {
  margin: 0 0 var(--space-4);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.06em;
}

.page-home .index-channel__more {
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
}

.page-home .tag-cloud {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
}

.page-home .tag-cloud__item {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  padding: 2px 0;
}

.page-home .tag-cloud__item:hover {
  background: var(--color-highlight);
  color: var(--color-ink);
}

.page-home .alpha-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: var(--space-2);
}

.page-home .alpha-grid__item {
  display: block;
  padding: var(--space-1) 0;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-home .alpha-grid__item:hover {
  background: var(--color-primary-soft);
  color: var(--color-accent);
}

/* ---------- 05 站务与合规 ---------- */
.page-home .notices__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-home .notices__title {
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-home .notices__text {
  max-width: var(--measure);
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .notices__list {
  margin: 0 0 var(--space-4);
}

.page-home .notices__contact {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
  letter-spacing: 0.02em;
}

/* ---------- 行列表与链接状态的补充 ---------- */
.page-home .row-list__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-2);
  transition: background-color 150ms ease;
}

.page-home .row-list__item:hover {
  background: var(--color-primary-soft);
}

.page-home .meta-mono {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.03em;
}

/* ===========================================================
   断点：平板起进入双栏
   =========================================================== */
@media (min-width: 760px) {
  .page-home .hero {
    padding-top: var(--space-8);
    padding-bottom: var(--section-y);
  }

  .page-home .batches__foot {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-home .desktop__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-home .notices__grid {
    grid-template-columns: 6fr 6fr;
    align-items: start;
  }

  .page-home .row-list__item {
    grid-template-columns: 1fr auto;
    align-items: baseline;
    column-gap: var(--space-4);
  }

  .page-home .alpha-grid {
    grid-template-columns: repeat(13, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-home .hero__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .hero__main {
    grid-column: 1 / span 7;
  }

  .page-home .hero__side {
    grid-column: 8 / span 5;
  }

  .page-home .track {
    grid-template-columns: repeat(12, 1fr);
    gap: var(--gutter);
    align-items: start;
    padding: var(--space-8) 0;
  }

  .page-home .track__body {
    grid-column: 1 / span 7;
  }

  .page-home .track__aside {
    grid-column: 9 / span 4;
    padding-top: var(--space-6);
  }

  .page-home .track--reverse .track__body {
    grid-column: 6 / span 7;
  }

  .page-home .track--reverse .track__aside {
    grid-column: 1 / span 4;
    padding-top: var(--space-6);
  }

  .page-home .indexer__grid {
    grid-template-columns: repeat(12, 1fr);
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .indexer__figure {
    grid-column: 1 / span 4;
  }

  .page-home .indexer__body {
    grid-column: 6 / span 7;
  }

  .page-home .index-pair {
    grid-template-columns: 6fr 6fr;
    gap: var(--space-6);
  }

  .page-home .alpha-grid {
    grid-template-columns: repeat(7, 1fr);
  }

  .page-home .batches__rail {
    padding-left: calc((100vw - var(--container)) / 2);
    padding-right: calc((100vw - var(--container)) / 2);
  }
}

@media (min-width: 1440px) {
  .page-home .anchor-nav {
    display: block;
    position: fixed;
    right: 32px;
    top: 50%;
    transform: translateY(-50%);
    width: 136px;
    z-index: 5;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .anchor-nav__link,
  .page-home .row-list__item,
  .page-home .home-details__summary {
    transition: none;
  }
}