.page-home {
  --home-cell: var(--space-8);
  --home-hero-pad: calc(var(--space-8) * 2);
}

/* ---------- 01 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding: var(--home-hero-pad) 0 var(--space-8);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

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

.page-home .home-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.page-home .home-hero__scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-home .home-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.65;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--color-contrast-line) 62%, transparent) var(--border-thin), transparent var(--border-thin)),
    linear-gradient(to bottom, color-mix(in srgb, var(--color-contrast-line) 62%, transparent) var(--border-thin), transparent var(--border-thin));
  background-size: var(--home-cell) var(--home-cell);
}

.page-home .home-hero__inner {
  position: relative;
  z-index: 1;
}

.page-home .home-hero__kicker {
  margin: 0 0 var(--space-3);
  color: var(--color-contrast-accent);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
}

.page-home .home-hero__title {
  margin: 0 0 var(--space-6);
  max-width: 22ch;
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: 1.02;
  letter-spacing: 0.015em;
  color: var(--color-contrast-ink);
}

.page-home .home-hero__cols {
  display: grid;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .home-hero__lede {
  margin: 0 0 var(--space-3);
  max-width: 46ch;
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-contrast-ink);
}

.page-home .home-hero__stamp {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin: 0 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-contrast-accent);
}

.page-home .home-hero__jump {
  display: inline-block;
  font-size: var(--text-sm);
  letter-spacing: 0.04em;
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
  text-decoration: underline;
  text-decoration-style: dotted;
  text-underline-offset: 4px;
  transition: color 0.18s ease, text-decoration-style 0.18s ease;
}

.page-home .home-hero__jump:hover,
.page-home .home-hero__jump:focus-visible {
  color: var(--color-contrast-accent);
  text-decoration-style: solid;
}

.page-home .home-hero__board {
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-contrast-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-contrast-surface) 84%, var(--color-contrast-line));
}

.page-home .home-hero__board-cap {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-contrast-accent);
}

.page-home .home-hero__board-list {
  margin: 0 0 var(--space-2);
  padding: 0;
  list-style: none;
}

.page-home .home-hero__board-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: var(--border-thin) dotted var(--color-contrast-line);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

.page-home .home-hero__board-list li:last-child {
  border-bottom: 0;
}

.page-home .home-hero__club {
  font-family: var(--font-heading);
  letter-spacing: 0.04em;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.page-home .home-hero__pts {
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  color: var(--color-contrast-accent);
}

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

.page-home .home-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-8) 0 0;
  padding: var(--space-6) 0 0;
  list-style: none;
  border-top: var(--border-thin) dotted var(--color-contrast-line);
}

.page-home .home-hero__fact {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-width: 0;
}

.page-home .home-hero__num {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-ink);
}

.page-home .home-hero__fact:last-child .home-hero__num {
  color: var(--color-contrast-accent);
}

.page-home .home-hero__fact-label {
  font-size: var(--text-sm);
  letter-spacing: 0.06em;
  color: color-mix(in srgb, var(--color-contrast-ink) 76%, transparent);
}

/* ---------- 02 积分榜面板 ---------- */
.page-home .home-board {
  margin-top: var(--space-3);
}

.page-home .home-board__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-1);
  border-bottom: var(--border-thick) solid var(--color-primary);
}

.page-home .home-board .tabs__tab {
  appearance: none;
  padding: var(--space-1) var(--space-2);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-surface-alt);
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-home .home-board .tabs__tab:not([aria-selected="true"]):hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.page-home .home-board .tabs__tab[aria-selected="true"] {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-home .home-board .tabs__tab:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: var(--border-thick);
}

.page-home .home-board__scroll {
  overflow-x: auto;
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
}

.page-home .home-board__cap {
  padding: var(--space-2) var(--space-2) 0;
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
}

.page-home .home-board .data-table th,
.page-home .home-board .data-table td {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.page-home .home-board .data-table tbody tr:hover {
  background: var(--color-highlight);
}

.page-home .home-board .tag {
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

.page-home .home-board__foot {
  margin: var(--space-2) 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .home-board-figure {
  margin-top: var(--space-3);
}

.page-home .home-board-figure .figure__cap {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

/* ---------- 03 区域轨道 ---------- */
.page-home .home-rail {
  display: flex;
  gap: var(--space-3);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  scroll-snap-type: x mandatory;
}

.page-home .home-rail__item {
  flex: 0 0 auto;
  width: min(80vw, 322px);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  border-left: var(--border-thick) solid var(--color-primary);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  text-decoration: none;
  color: var(--color-ink);
  scroll-snap-align: start;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-home .home-rail__item:hover,
.page-home .home-rail__item:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-highlight);
}

.page-home .home-rail__no {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-primary);
}

.page-home .home-rail__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: 0.03em;
  color: var(--color-ink);
}

.page-home .home-rail__desc {
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .home-rail__go {
  margin-top: var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

.page-home .home-region-figure {
  margin-top: var(--space-6);
}

.page-home .home-region-figure .figure__frame {
  overflow: hidden;
}

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

/* ---------- 04 校订记录 ---------- */
.page-home .home-folds {
  border-top: var(--border-thick) solid var(--color-ink);
}

.page-home .home-folds .fold {
  border-bottom: var(--border-thin) solid var(--color-line);
  background: transparent;
}

.page-home .home-folds .fold__head {
  width: 100%;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2) var(--space-2) 0;
  border: 0;
  border-left: var(--border-thick) solid transparent;
  background: none;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  color: var(--color-ink);
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.page-home .home-folds .fold__head:hover {
  border-left-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.page-home .home-folds .fold__head[aria-expanded="true"] {
  border-left-color: var(--color-accent);
  background: var(--color-surface-alt);
}

.page-home .home-folds .fold__head:focus-visible {
  outline: var(--border-thick) solid var(--color-focus);
  outline-offset: calc(var(--border-thick) * -1);
}

.page-home .home-folds .fold__body {
  padding: 0 var(--space-3) var(--space-3) var(--space-3);
  border-left: var(--border-thick) solid var(--color-accent);
  background: var(--color-surface-alt);
}

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

.page-home .home-fold__no {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-home .home-fold__name {
  min-width: 0;
  letter-spacing: 0.02em;
}

.page-home .home-rev-note {
  margin-top: var(--space-6);
  padding: var(--space-3);
}

.page-home .home-rev-note__cap {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  color: var(--color-primary);
}

.page-home .home-rev-note__list {
  margin: 0 0 var(--space-3);
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-2);
}

.page-home .home-rev-note__list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-home .home-rev-note__foot {
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) dotted var(--color-line);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* ---------- 05 复盘 ---------- */
.page-home .home-review {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-4);
}

.page-home .home-review__item {
  padding-left: var(--space-3);
  border-left: var(--border-thick) solid var(--color-primary);
}

.page-home .home-review__item:nth-child(even) {
  border-left-color: var(--color-accent);
}

.page-home .home-review__round {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  color: var(--color-ink-muted);
}

.page-home .home-review__title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: 0.02em;
  color: var(--color-ink);
}

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

.page-home .home-review-figure {
  margin: 0;
}

.page-home .home-review-figure .figure__frame {
  overflow: hidden;
}

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

/* ---------- 06 纠错出口 ---------- */
.page-home .home-correct {
  display: grid;
  gap: var(--space-4);
}

.page-home .home-correct__no {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-contrast-accent);
}

.page-home .home-correct__title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: 0.02em;
  color: var(--color-contrast-ink);
}

.page-home .home-correct__para {
  margin: 0;
  max-width: var(--measure);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 84%, transparent);
}

.page-home .home-correct__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

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

.page-home .home-correct__fine {
  margin: 0;
  padding-top: var(--space-3);
  border-top: var(--border-thin) dotted var(--color-contrast-line);
  max-width: var(--measure);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: color-mix(in srgb, var(--color-contrast-ink) 72%, transparent);
}

.page-home .home-correct__fine .link {
  color: var(--color-contrast-accent);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-home .home-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__cols {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: var(--space-8);
  }

  .page-home .home-rev-note {
    margin-top: 0;
  }
}

@media (min-width: 1025px) {
  .page-home .home-rail {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
    scroll-snap-type: none;
  }

  .page-home .home-rail__item {
    width: auto;
  }
}

@media (max-width: 680px) {
  .page-home .home-hero {
    padding-top: calc(var(--space-8) + var(--space-6));
  }

  .page-home .home-hero__title {
    max-width: none;
  }

  .page-home .home-hero__lede {
    font-size: var(--text-base);
  }

  .page-home .home-hero__num {
    font-size: var(--text-2xl);
  }

  .page-home .home-folds .fold__head {
    grid-template-columns: auto minmax(0, 1fr);
    row-gap: var(--space-1);
  }

  .page-home .home-folds .fold__head .tag {
    grid-column: 2;
    justify-self: start;
  }

  .page-home .home-review__title {
    font-size: var(--text-lg);
  }

  .page-home .home-correct__title {
    font-size: var(--text-xl);
  }
}
<<<END>>>