.page-home {
  --home-lead-w: minmax(0, 1.35fr);
  --home-side-w: minmax(0, 1fr);
  --home-gap: clamp(1.75rem, 4vw, 3.5rem);
  display: block;
}

/* ---------- 页面上下文 ---------- */
.page-home .breadcrumb {
  flex-wrap: wrap;
  gap: 0.4rem 0.6rem;
  padding-top: clamp(1.25rem, 3vw, 2rem);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(1.75rem, 4vw, 3rem) 0 clamp(2.5rem, 6vw, 5rem);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: -10% -8% auto -14%;
  height: 70%;
  background: radial-gradient(60% 70% at 22% 30%, rgba(41, 185, 164, 0.16), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
  align-items: start;
}

.page-home .hero__lead {
  display: flex;
  flex-direction: column;
  gap: clamp(1rem, 2.4vw, 1.6rem);
}

.page-home .eyebrow {
  margin: 0;
  color: var(--lake);
}

.page-home .hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.3rem, 9vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--cream);
  text-wrap: balance;
}

.page-home .hero__lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(0.95rem, 1.6vw, 1.05rem);
  line-height: 1.85;
  color: var(--cold);
}

.page-home .coords {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .coords__row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.85rem 0.5rem 0.85rem 0;
  background: transparent;
}

.page-home .coords__k {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--stone);
}

.page-home .coords__v {
  margin: 0;
  font-size: 1.05rem;
  color: var(--glow);
  font-variant-numeric: tabular-nums;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ---------- 首屏右侧章节预览 ---------- */
.page-home .hero__preview {
  position: relative;
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: 1px solid var(--line-soft);
  background: linear-gradient(165deg, rgba(14, 21, 34, 0.92), rgba(10, 26, 47, 0.78));
  overflow: hidden;
}

.page-home .hero__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  filter: saturate(0.85);
  pointer-events: none;
}

.page-home .hero__preview-cap {
  position: relative;
  margin: 0 0 0.9rem;
  color: var(--stone);
}

.page-home .preview-list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-home .preview__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.2rem 0.95rem;
  align-items: baseline;
  padding: 0.85rem 0.95rem;
  border-left: 2px solid transparent;
  background: rgba(28, 38, 53, 0.62);
  color: var(--cream);
  text-decoration: none;
  transition: transform 220ms var(--ease), background-color 220ms var(--ease),
    border-color 220ms var(--ease), filter 220ms var(--ease);
}

.page-home .preview__idx {
  grid-row: 1 / span 2;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--lake);
}

.page-home .preview__name {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.page-home .preview__hint {
  grid-column: 2;
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--stone);
}

.page-home .preview__more {
  grid-column: 2;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--glow);
}

.page-home .preview__link:hover,
.page-home .preview__link:focus-visible {
  transform: translateX(4px);
  background: rgba(41, 185, 164, 0.14);
  border-left-color: var(--lake);
  filter: brightness(1.08);
}

.page-home .preview__link:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 2px;
}

/* ---------- 订阅折叠 ---------- */
.page-home .subscribe {
  border-top: 1px solid var(--line-soft);
  padding-top: 0.9rem;
}

.page-home .subscribe__summary {
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
  list-style: none;
}

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

.page-home .subscribe__summary::before {
  content: "＋ ";
  color: var(--lake);
}

.page-home .subscribe[open] .subscribe__summary::before {
  content: "－ ";
}

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

.page-home .subscribe__body {
  margin: 0.75rem 0 0;
  max-width: 56ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--cold);
}

/* ---------- 章节通用 ---------- */
.page-home .section {
  position: relative;
  padding: clamp(2.75rem, 7vw, 5.5rem) 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .section__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem 1.75rem;
  margin-bottom: clamp(1.5rem, 3.5vw, 2.75rem);
}

.page-home .section__index {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: rgba(41, 185, 164, 0.55);
  margin: 0;
}

.page-home .section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.6rem, 5vw, 2.9rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-home .section__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--stone);
}

.page-home .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
}

.page-home .prose p {
  margin: 0 0 1.15em;
  max-width: 68ch;
  line-height: 1.85;
  color: var(--cold);
}

.page-home .note {
  padding: 1rem 1.1rem;
  border-left: 2px solid var(--clay);
  background: rgba(28, 38, 53, 0.52);
  font-size: 0.85rem;
  line-height: 1.75;
  color: var(--cold);
}

.page-home .note p {
  margin: 0 0 0.6rem;
}

.page-home .note p:last-child {
  margin-bottom: 0;
}

.page-home .note__idx {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--clay);
}

.page-home .more-link a {
  color: var(--glow);
  text-decoration: none;
  border-bottom: 1px solid var(--line-glow);
  padding-bottom: 1px;
}

.page-home .more-link a:hover,
.page-home .more-link a:focus-visible {
  color: var(--lake);
  border-bottom-color: var(--lake);
}

.page-home .more-link a:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 3px;
}

.page-home .figure {
  margin: clamp(1.5rem, 3.5vw, 2.5rem) 0 0;
}

.page-home .figure__cap {
  margin-top: 0.6rem;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-home .figure__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-soft);
}

.page-home .to-top {
  display: inline-block;
  margin-top: 1.5rem;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--stone);
  text-decoration: none;
}

.page-home .to-top:hover,
.page-home .to-top:focus-visible {
  color: var(--glow);
}

.page-home .to-top:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 3px;
}

/* ---------- 阶梯形势线 ---------- */
.page-home .ladder-wrap {
  margin-top: clamp(1.5rem, 3.5vw, 2.5rem);
  padding: clamp(1rem, 3vw, 1.75rem);
  background: linear-gradient(200deg, rgba(28, 38, 53, 0.75), rgba(14, 21, 34, 0.6));
  border: 1px solid var(--line-soft);
}

.page-home .ladder {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .ladder__zone {
  stroke: var(--flag);
  stroke-width: 1;
  stroke-dasharray: 5 6;
  opacity: 0.65;
}

.page-home .ladder__zone--low {
  stroke: var(--stone);
  opacity: 0.5;
}

.page-home .ladder__path {
  fill: none;
  stroke: var(--lake);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.page-home .ladder__dot {
  fill: var(--glow);
}

.page-home .ladder__dot--flag {
  fill: var(--flag);
}

.page-home .ladder__label {
  fill: var(--flag);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-home .ladder__label--low {
  fill: var(--stone);
}

.page-home .ladder-wrap .note {
  margin-top: 0.9rem;
  border-left-color: var(--lake);
  background: transparent;
  padding: 0 0 0 0.9rem;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--stone);
}

/* ---------- 签表长卷 ---------- */
.page-home .bracket {
  margin-top: clamp(1.5rem, 3.5vw, 2.25rem);
  padding-bottom: 0.75rem;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(41, 185, 164, 0.5) transparent;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 3%, #000 94%, transparent 100%);
  mask-image: linear-gradient(90deg, transparent 0, #000 3%, #000 94%, transparent 100%);
}

.page-home .bracket:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 4px;
}

.page-home .bracket__track {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0 2.5rem 0 0.25rem;
  min-width: max-content;
}

.page-home .bracket__round {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 15.5rem;
  padding: 0 0 0 1.1rem;
  border-left: 1px solid var(--line);
}

.page-home .bracket__round::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 12px;
  height: 2px;
  background: var(--flag);
}

.page-home .bracket__round--final::before {
  background: var(--amber);
  width: 20px;
}

.page-home .bracket__round-name {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--flag);
}

.page-home .bracket__matches {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.page-home .bracket__match {
  padding: 0.6rem 0.75rem;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--cold);
  background: rgba(28, 38, 53, 0.6);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .bracket__match .num {
  margin-right: 0.5rem;
  color: var(--glow);
  font-size: 11px;
}

.page-home .bracket__note {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.page-home .scroll-hint {
  margin: 0.5rem 0 0;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

/* ---------- 数据表 ---------- */
.page-home .table-wrap {
  margin-top: clamp(1.5rem, 3.5vw, 2.5rem);
  overflow-x: auto;
  border-top: 1px solid var(--line);
}

.page-home .data-table caption {
  padding: 0.75rem 0;
  text-align: left;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-home .data-table th,
.page-home .data-table td {
  padding: 0.7rem 0.9rem 0.7rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 0.85rem;
  white-space: nowrap;
}

.page-home .data-table thead th {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lake);
  text-transform: none;
}

.page-home .data-table tbody th {
  color: var(--cold);
  font-weight: 500;
}

.page-home .data-table td.num,
.page-home .data-table th.num {
  text-align: right;
}

.page-home .data-table tbody td {
  color: var(--stone);
}

/* ---------- 简史时间轴 ---------- */
.page-home .timeline {
  list-style: none;
  margin: clamp(1.5rem, 3.5vw, 2.5rem) 0 0;
  padding: 0 0 0 1.4rem;
  border-left: 1px solid var(--line);
  position: relative;
}

.page-home .timeline__node {
  position: relative;
  padding: 0 0 1.75rem 0;
}

.page-home .timeline__node::before {
  content: "";
  position: absolute;
  left: -1.4rem;
  top: 0.45rem;
  width: 9px;
  height: 9px;
  margin-left: -5px;
  border-radius: 50%;
  background: var(--clay);
}

.page-home .timeline__node:last-child {
  padding-bottom: 0;
}

.page-home .timeline__title {
  margin: 0.15rem 0 0.4rem;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-home .timeline__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 栏目地图 ---------- */
.page-home .section--atlas {
  background: linear-gradient(180deg, rgba(14, 21, 34, 0) 0%, rgba(14, 21, 34, 0.66) 18%, rgba(14, 21, 34, 0) 100%);
}

.page-home .atlas {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.page-home .atlas__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-home .atlas__item {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .atlas__item:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-home .atlas__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.2rem 1.1rem;
  padding: 1rem 0.5rem 1rem 0.25rem;
  text-decoration: none;
  transition: background-color 220ms var(--ease), padding-left 220ms var(--ease);
}

.page-home .atlas__idx {
  grid-row: 1 / span 2;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lake);
}

.page-home .atlas__label {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-home .atlas__desc {
  grid-column: 2;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--stone);
}

.page-home .atlas__link:hover,
.page-home .atlas__link:focus-visible {
  background: rgba(41, 185, 164, 0.1);
  padding-left: 0.85rem;
}

.page-home .atlas__link:focus-visible {
  outline: 2px solid var(--glow);
  outline-offset: 2px;
}

.page-home .atlas__shortcuts {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-home .atlas__shortcuts .eyebrow {
  margin-bottom: 0.75rem;
  color: var(--stone);
}

.page-home .atlas__chips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-home .atlas__chips a {
  text-decoration: none;
  display: inline-block;
}

.page-home .subscribe--foot {
  max-width: 60ch;
}

/* ---------- 进场显现 ---------- */
.page-home .section[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 280ms var(--ease), transform 280ms var(--ease);
}

.page-home .section[data-reveal].is-in,
.page-home .section[data-reveal][data-reveal-ready="no-js"] {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 48rem) {
  .page-home .coords {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .atlas__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 2.5rem;
  }
}

@media (min-width: 62rem) {
  .page-home .hero__grid {
    grid-template-columns: var(--home-lead-w) var(--home-side-w);
    gap: var(--home-gap);
  }

  .page-home .split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-home .section__head {
    grid-template-columns: 5rem minmax(0, 1fr);
    align-items: start;
  }

  .page-home .section__index {
    grid-row: 1 / span 2;
    padding-top: 0.35rem;
  }

  .page-home .section__lede {
    grid-column: 2;
  }

  .page-home .preview__hint,
  .page-home .preview__more {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 240ms var(--ease), max-height 240ms var(--ease);
  }

  .page-home .preview__link:hover .preview__hint,
  .page-home .preview__link:hover .preview__more,
  .page-home .preview__link:focus-visible .preview__hint,
  .page-home .preview__link:focus-visible .preview__more {
    opacity: 1;
    max-height: 4rem;
  }

  .page-home .timeline {
    padding-left: 2rem;
  }

  .page-home .timeline__node::before {
    left: -2rem;
  }
}

@media (min-width: 80rem) {
  .page-home .bracket__track {
    gap: 2rem;
  }

  .page-home .bracket__round {
    min-width: 17rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .section[data-reveal],
  .page-home .preview__link,
  .page-home .atlas__link,
  .page-home .preview__hint,
  .page-home .preview__more {
    opacity: 1;
    transform: none;
    max-height: none;
    transition: none;
  }
}