.page-home {
  --home-grid-line: rgba(46, 59, 55, 0.55);
  --home-cell-pad: 16px;
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-home .breadcrumb {
  margin: 22px 0 14px;
}

/* ---------- 首屏拼贴 ---------- */
.page-home .hero {
  padding-bottom: 34px;
}

.page-home .hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--line);
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--home-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--home-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-home .hero-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--home-cell-pad);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 1px;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.page-home .hero-cell:focus-within {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-home .hero-cell--main {
  padding: 0;
  background: var(--ink-2);
}

.page-home .hero-cell--cue {
  padding: 0;
}

.page-home .hero-visual {
  margin: 0;
  border-bottom: 1px solid var(--line);
  background: var(--ink-3);
  overflow: hidden;
}

.page-home .hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-home .hero-copy {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 18px 22px;
}

.page-home .hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 6.6vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--paper);
  margin: 0;
}

.page-home .hero-copy .lead {
  color: var(--text);
  max-width: 34em;
  margin: 0;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 2px;
}

.page-home .hero-cell--status {
  border-left: 3px solid var(--orange);
}

.page-home .hero-status-line {
  display: flex;
  align-items: center;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-home .status-dot {
  display: inline-block;
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--orange);
}

.page-home .cell-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-home .cue-copy {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--home-cell-pad);
}

.page-home .cue-visual {
  margin: 0;
  border-top: 1px solid var(--line);
  overflow: hidden;
}

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

.page-home .jump-list {
  display: flex;
  flex-direction: column;
}

.page-home .jump-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.5;
  transition: color 160ms ease;
}

.page-home .jump-list a:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-home .jump-list a::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
  transition: color 160ms ease;
}

.page-home .jump-list a:hover {
  color: var(--cyan);
}

.page-home .jump-list a:hover::after {
  color: var(--cyan);
}

/* ---------- 主体非对称网格 ---------- */
.page-home .home-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  padding-top: 6px;
}

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

.page-home .section + .section {
  margin-top: 46px;
}

.page-home .section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  margin-bottom: 20px;
}

.page-home .section-head .section-num {
  font-size: 38px;
  line-height: 1;
  letter-spacing: 0.01em;
}

.page-home .section-head .section-title {
  margin: 4px 0 0;
}

.page-home .section-head .section-sub {
  margin: 6px 0 0;
  max-width: 44em;
}

/* ---------- 主干 ---------- */
.page-home .track-visual {
  margin: 0 0 16px;
  height: 148px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-home .track-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .track-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .track {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 16px 20px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 1px;
  transition: border-color 170ms ease, background-color 170ms ease;
}

.page-home .track:hover,
.page-home .track:focus-within {
  border-color: var(--orange);
  background: var(--ink-3);
}

.page-home .track-idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-home .track-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--paper);
}

.page-home .track-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-home .track-link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 14px;
  color: var(--orange);
  border-bottom: 1px solid var(--orange);
  padding-bottom: 1px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-home .track-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 快照表格 ---------- */
.page-home .snapshot-wrap {
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-home .snapshot-table {
  min-width: 480px;
  width: 100%;
}

.page-home .snapshot-note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 44em;
}

/* ---------- 版本节律 ---------- */
.page-home .rhythm-visual {
  margin: 0 0 18px;
  height: 138px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  overflow: hidden;
}

.page-home .rhythm-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .rhythm-facts {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
}

.page-home .rhythm-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}

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

.page-home .rhythm-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-home .rhythm-row dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-home .rhythm-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 16px 0 0;
}

.page-home .rhythm-links a {
  font-size: 14px;
  color: var(--orange);
  border-bottom: 1px solid var(--orange);
  padding-bottom: 1px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-home .rhythm-links a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 右侧轮次索引栏 ---------- */
.page-home .home-rail {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-home .rail-card {
  padding: 16px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 1px;
  transition: border-color 170ms ease;
}

.page-home .rail-card:hover {
  border-color: var(--line-strong);
}

.page-home .rail-scale {
  display: block;
  width: 100%;
  height: auto;
  margin: 14px 0 0;
}

.page-home .rail-scale .r-axis {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.page-home .rail-scale .r-tick {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.page-home .rail-scale .r-tick--now {
  stroke: var(--orange);
  stroke-width: 2;
}

.page-home .rail-scale .r-dot {
  fill: var(--orange);
}

.page-home .rail-scale-meta {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-home .rail-jumps {
  display: flex;
  flex-direction: column;
  margin-top: 10px;
}

.page-home .rail-jumps a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--text);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-home .rail-jumps a:last-child {
  border-bottom: 0;
}

.page-home .rail-jumps a span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  transition: color 160ms ease;
}

.page-home .rail-jumps a:hover {
  color: var(--cyan);
}

.page-home .rail-jumps a:hover span {
  color: var(--orange);
}

/* ---------- 底部反馈色带 ---------- */
.page-home .home-feedback {
  margin-top: 48px;
  background: var(--wine);
  border-left: 4px solid var(--orange);
}

.page-home .home-feedback-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-top: 22px;
  padding-bottom: 22px;
}

.page-home .home-feedback-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  max-width: 48em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .track-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-home .track-visual {
    height: 200px;
  }

  .page-home .section-head {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 4px 18px;
    align-items: start;
  }

  .page-home .section-head .section-num {
    grid-column: 1;
    grid-row: 1 / span 2;
    font-size: 44px;
  }

  .page-home .section-head .section-title,
  .page-home .section-head .section-sub {
    grid-column: 2;
  }

  .page-home .rhythm-visual {
    height: 190px;
  }

  .page-home .rhythm-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 30px;
  }
}

@media (min-width: 960px) {
  .page-home {
    --home-cell-pad: 18px;
  }

  .page-home .hero-grid {
    grid-template-columns: 2fr 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 12px;
    padding: 12px;
  }

  .page-home .hero-cell--main {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
  }

  .page-home .hero-cell--status {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
  }

  .page-home .hero-cell--jump {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
  }

  .page-home .hero-cell--cue {
    grid-column: 3 / 4;
    grid-row: 1 / 3;
  }

  .page-home .hero-copy {
    padding: 26px 26px 28px;
  }

  .page-home .home-body {
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
  }

  .page-home .home-rail {
    position: sticky;
    top: 88px;
  }
}

@media (max-width: 520px) {
  .page-home .section-head .section-num {
    font-size: 32px;
  }

  .page-home .rhythm-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-home .home-feedback-inner {
    padding-top: 20px;
    padding-bottom: 20px;
  }
}