.page-home {
  --home-gap: clamp(16px, 2.4vw, 32px);
  --home-max: 1280px;
}

/* ---------- 通用区块节奏 ---------- */
.page-home .hero,
.page-home .index-band,
.page-home .stat-band,
.page-home .watch,
.page-home .seasons,
.page-home .library,
.page-home .cycle,
.page-home .contact-band {
  padding-block: clamp(40px, 6vw, 72px);
}

.page-home .section-title {
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 10px 0 14px;
}

.page-home .eyebrow {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ember-deep);
  margin: 0;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding-top: clamp(20px, 3vw, 36px);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.45;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 78%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 78%);
}

.page-home .hero-context {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin: 0 0 clamp(16px, 3vw, 28px);
  padding: 6px 14px 6px 10px;
  border: 2px solid var(--line);
  border-radius: var(--pill);
  background: rgba(247, 241, 227, 0.85);
}

.page-home .context-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ember);
  flex: none;
}

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

.page-home .hero-title {
  font-size: clamp(34px, 7vw, 66px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 18px;
}

.page-home .hero-lead {
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.85;
  color: var(--ink);
  max-width: 34em;
  margin: 0 0 24px;
}

.page-home .round-card {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 18px;
  border: var(--border) solid var(--ink);
  background: var(--indigo);
  color: var(--paper);
  box-shadow: var(--shadow);
  padding: 18px 22px;
  margin-bottom: 26px;
}

.page-home .round-label {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--winter);
  text-transform: uppercase;
  width: 100%;
}

.page-home .round-code {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(52px, 11vw, 96px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--autumn);
}

.page-home .round-note {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  margin: 0;
  flex: 1 1 160px;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero-media {
  margin: 0;
}

/* ---------- 媒体框 ---------- */
.page-home .media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border: var(--border) solid var(--ink);
  box-shadow: var(--shadow);
  background: var(--line);
  margin: 0;
}

.page-home .media-frame--16x9 { aspect-ratio: 16 / 9; }
.page-home .media-frame--4x3 { aspect-ratio: 4 / 3; }
.page-home .media-frame--3x4 { aspect-ratio: 3 / 4; }

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

.page-home .media-frame__label {
  position: absolute;
  left: 0;
  bottom: 0;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.12em;
  padding: 5px 12px;
  color: var(--paper);
  background: var(--indigo);
}

/* ---------- 章节索引（深色） ---------- */
.page-home .index-band {
  background: var(--indigo);
  color: var(--paper);
  position: relative;
}

.page-home .index-band::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  background: linear-gradient(
    to right,
    var(--spring) 0 25%,
    var(--summer) 25% 50%,
    var(--autumn) 50% 75%,
    var(--winter) 75% 100%
  );
}

.page-home .band-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-home .band-title {
  color: var(--paper);
}

.page-home .band-text {
  color: rgba(247, 241, 227, 0.78);
  line-height: 1.8;
  margin: 0;
}

.page-home .route-tab-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  border: 0;
  padding: 0;
  margin: 0;
}

.page-home .route-tab {
  appearance: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-start;
  padding: 14px 14px 16px;
  background: transparent;
  border: 2px solid var(--indigo-soft);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease), color 0.35s var(--ease);
}

.page-home .route-tab:hover {
  border-color: var(--autumn);
}

.page-home .route-tab .tab-num {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--winter);
}

.page-home .route-tab[aria-selected="true"] {
  background: var(--ember);
  border-color: var(--ember);
  color: var(--ink);
}

.page-home .route-tab[aria-selected="true"] .tab-num {
  color: var(--ink);
}

.page-home .route-tab:focus-visible {
  outline: 3px solid var(--winter);
  outline-offset: 3px;
}

.page-home .route-panel {
  margin-top: 18px;
  padding: clamp(18px, 3vw, 28px);
  border: 2px solid var(--indigo-soft);
  background: rgba(46, 60, 116, 0.32);
}

.page-home .route-panel[hidden] {
  display: none;
}

.page-home .route-panel-title {
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  margin: 0 0 14px;
  color: var(--paper);
}

.page-home .route-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .route-list li {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(247, 241, 227, 0.9);
  border-bottom: 1px solid rgba(216, 205, 186, 0.25);
  padding-bottom: 10px;
}

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

.page-home .route-num {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--autumn);
  padding-top: 3px;
}

.page-home .route-link {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 15px;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 3px solid var(--ember);
  padding-bottom: 2px;
}

.page-home .route-link:hover,
.page-home .route-link:focus-visible {
  color: var(--ember);
}

/* ---------- 数据带 ---------- */
.page-home .stat-band {
  background: var(--paper);
  border-block: var(--border) solid var(--ink);
}

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

.page-home .stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
}

.page-home .stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-left: 6px solid var(--line);
  padding-left: 12px;
}

.page-home .stat-item:nth-child(1) { border-left-color: var(--spring); }
.page-home .stat-item:nth-child(2) { border-left-color: var(--summer); }
.page-home .stat-item:nth-child(3) { border-left-color: var(--autumn); }
.page-home .stat-item:nth-child(4) { border-left-color: var(--winter); }
.page-home .stat-item--wide { border-left-color: var(--ember); }

.page-home .stat-num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4.4vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-home .stat-num--sm {
  font-size: clamp(18px, 2.4vw, 24px);
  letter-spacing: 0.02em;
}

.page-home .stat-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

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

/* ---------- 本轮看点 ---------- */
.page-home .watch-head {
  max-width: 60ch;
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-home .watch-lead,
.page-home .library-lead,
.page-home .cycle-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

.page-home .watch-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-home .watch-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: watch;
}

.page-home .watch-item {
  border: var(--border) solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow);
  padding: 20px 22px;
}

.page-home .watch-item h3 {
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.4;
  margin: 12px 0 8px;
  color: var(--ink);
}

.page-home .watch-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .watch-item .tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  padding: 3px 10px;
  border: 2px solid var(--ink);
  color: var(--ink);
}

.page-home .tag--spring { background: var(--spring); }
.page-home .tag--summer { background: var(--summer); }
.page-home .tag--autumn { background: var(--autumn); }
.page-home .tag--winter { background: var(--winter); }

/* ---------- 四季主题带 ---------- */
.page-home .season-band {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  border: var(--border) solid var(--ink);
  box-shadow: var(--shadow);
  background: var(--paper);
}

.page-home .season-item {
  position: relative;
  display: grid;
  grid-template-columns: 8px 1fr;
  border-bottom: 2px solid var(--ink);
}

.page-home .season-item:last-child {
  border-bottom: 0;
}

.page-home .season-bar {
  display: block;
  background: var(--line);
}

.page-home .season-item--spring .season-bar { background: var(--spring); }
.page-home .season-item--summer .season-bar { background: var(--summer); }
.page-home .season-item--autumn .season-bar { background: var(--autumn); }
.page-home .season-item--winter .season-bar { background: var(--winter); }

.page-home .season-link {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0 16px;
  padding: 16px 18px;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.35s var(--ease);
}

.page-home .season-item:hover .season-link,
.page-home .season-link:focus-visible {
  background: rgba(216, 205, 186, 0.35);
}

.page-home .season-name {
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .season-go {
  font-family: var(--font-data);
  font-size: 18px;
  color: var(--ember-deep);
}

.page-home .season-note {
  grid-column: 1 / -1;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
  transition: max-height 0.4s var(--ease), opacity 0.3s var(--ease), margin-top 0.4s var(--ease);
}

.page-home .season-item:hover .season-note,
.page-home .season-item:focus-within .season-note {
  max-height: 90px;
  opacity: 1;
  margin-top: 8px;
}

/* ---------- 资料库示例 ---------- */
.page-home .library {
  background: var(--paper);
}

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

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

.page-home .library-lead {
  margin-bottom: 20px;
}

.page-home .query-card {
  border: var(--border) solid var(--ink);
  box-shadow: var(--shadow-sm);
  background: var(--paper);
  padding: 18px 20px;
  margin-bottom: 16px;
}

.page-home .query-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.page-home .query-chip {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  border: 2px solid var(--ink);
  padding: 2px 9px;
  background: var(--summer);
  color: var(--ink);
}

.page-home .query-chip--alt {
  background: var(--paper);
}

.page-home .query-chip--warm {
  background: var(--autumn);
}

.page-home .query-card h3 {
  font-size: clamp(16px, 1.9vw, 19px);
  font-weight: 800;
  line-height: 1.5;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-home .query-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 面板周期 ---------- */
.page-home .cycle {
  background: linear-gradient(to bottom, rgba(216, 205, 186, 0.28), transparent 62%);
}

.page-home .cycle-track {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-home .cycle-node {
  border-left: 8px solid var(--autumn);
  padding: 2px 0 2px 16px;
}

.page-home .cycle-node--mid { border-left-color: var(--summer); }
.page-home .cycle-node--full { border-left-color: var(--winter); }

.page-home .cycle-span {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ember-deep);
}

.page-home .cycle-node h3 {
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 800;
  line-height: 1.4;
  margin: 6px 0 6px;
  color: var(--ink);
}

.page-home .cycle-node p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 联系 ---------- */
.page-home .contact-band {
  border-top: var(--border) solid var(--ink);
}

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

.page-home .contact-copy p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 18px;
  max-width: 40em;
}

.page-home .contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  border: var(--border) solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  padding: 14px 18px;
}

.page-home .contact-key {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ember-deep);
  flex: none;
  min-width: 4em;
}

.page-home .contact-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-home .stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .stat-item--wide {
    grid-column: span 3;
  }
  .page-home .route-tab {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
    padding: 16px;
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 32px;
  }
  .page-home .hero-copy {
    grid-column: 1 / span 7;
  }
  .page-home .hero-media {
    grid-column: 8 / span 5;
  }
  .page-home .route-tab-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-home .stat-inner {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 36px;
  }
  .page-home .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .stat-item--wide {
    grid-column: span 2;
  }
  .page-home .watch-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 24px;
  }
  .page-home .watch-item:nth-child(even) {
    margin-top: 32px;
  }
  .page-home .library-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
  }
  .page-home .cycle-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
  .page-home .contact-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .route-tab,
  .page-home .season-link,
  .page-home .season-note {
    transition: none;
  }
  .page-home .season-note {
    max-height: none;
    opacity: 1;
    margin-top: 8px;
  }
}