.page-home {
  --home-rule: 1px solid #2C5A42;
  --home-line: rgba(200, 162, 74, 0.28);
}

/* ---------- 首屏分屏 ---------- */
.page-home .hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  padding: clamp(32px, 7vw, 72px) var(--pad) clamp(28px, 5vw, 56px);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(28, 58, 44, 0.9) 0%, rgba(18, 36, 28, 0) 60%),
    var(--deep);
  border-bottom: var(--home-rule);
  position: relative;
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(44, 90, 66, 0.34) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 90, 66, 0.34) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.85), rgba(0,0,0,0.12));
}

.page-home .hero-copy,
.page-home .hero-stage {
  position: relative;
  z-index: 1;
}

.page-home .crumb {
  margin: 0 0 20px;
}

.page-home .hero-title {
  margin: 0 0 20px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(44px, 10vw, 92px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .hero-line {
  display: block;
}

.page-home .hero-line--shift {
  padding-left: 0.42em;
  color: var(--gilt);
}

.page-home .hero-lede {
  max-width: 46ch;
  margin: 0 0 28px;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.92;
}

.page-home .hero-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.page-home .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin: 0;
  padding-top: 20px;
  border-top: var(--home-rule);
}

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

.page-home .hero-fact dt {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sage);
  margin-bottom: 4px;
}

.page-home .hero-fact dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 30px;
  letter-spacing: 0.04em;
  color: var(--gilt-lift);
  line-height: 1;
}

.page-home .hero-fact .plus {
  font-size: 0.6em;
  color: var(--gilt);
  margin-left: 2px;
}

.page-home .hero-annot {
  position: absolute;
  right: -4px;
  top: 0;
  display: none;
  color: var(--gilt);
}

/* ---------- 首屏右侧面板 ---------- */
.page-home .hero-stage {
  position: relative;
  min-height: 320px;
}

.page-home .hero-figure {
  margin: 0;
  border: 2px solid var(--pine);
  box-shadow: 10px 10px 0 rgba(11, 20, 16, 0.75);
  background: var(--panel);
  overflow: hidden;
}

.page-home .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06);
}

.page-home .board {
  margin-top: -64px;
  margin-left: clamp(12px, 4vw, 32px);
  margin-right: clamp(12px, 4vw, 32px);
  position: relative;
  padding: 18px 18px 16px;
  background: rgba(11, 20, 16, 0.94);
  border: 1px solid var(--gilt);
  box-shadow: 6px 6px 0 rgba(11, 20, 16, 0.6);
  backdrop-filter: blur(2px);
  transition: border-color var(--t-mid), background-color var(--t-mid);
}

.page-home .board:hover {
  border-color: var(--gilt-lift);
  background: rgba(18, 36, 28, 0.96);
}

.page-home .board-head,
.page-home .board-foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.page-home .board-k {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sage);
}

.page-home .board-v {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--gilt-lift);
  letter-spacing: 0.08em;
}

.page-home .board-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 14px 0 10px;
  padding: 12px 0;
  border-top: 1px solid rgba(44, 90, 66, 0.7);
  border-bottom: 1px solid rgba(44, 90, 66, 0.7);
}

.page-home .board-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-home .board-num {
  font-family: var(--mono);
  font-size: 32px;
  line-height: 1;
  color: var(--paper);
  letter-spacing: 0.04em;
}

.page-home .board-num .unit,
.page-home .board-rate .unit {
  font-size: 0.45em;
  color: var(--sage);
  margin-left: 3px;
  letter-spacing: 0.1em;
}

.page-home .board-chart {
  display: block;
  width: 100%;
  height: 96px;
}

.page-home .bc-grid {
  fill: none;
  stroke: rgba(44, 90, 66, 0.55);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.page-home .bc-line {
  fill: none;
  stroke-width: 2;
  stroke-linejoin: round;
}

.page-home .bc-line--a { stroke: var(--amber); opacity: 0.95; }
.page-home .bc-line--b { stroke: var(--gilt); opacity: 0.6; }
.page-home .bc-line--c { stroke: var(--sage); opacity: 0.42; }

.page-home .board-foot {
  margin-top: 10px;
}

.page-home .board-rate {
  font-family: var(--mono);
  font-size: 20px;
  color: var(--amber);
  letter-spacing: 0.05em;
}

.page-home .board-bar {
  margin-top: 8px;
  height: 6px;
  background: rgba(44, 90, 66, 0.6);
  overflow: hidden;
}

.page-home .bb-fill {
  display: block;
  height: 100%;
  width: 54.7%;
  background: linear-gradient(90deg, var(--amber), var(--gilt));
}

/* ---------- 通用章节 ---------- */
.page-home .section {
  padding: clamp(36px, 6vw, 72px) var(--pad);
  border-bottom: var(--home-rule);
}

.page-home .section-head {
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(200, 162, 74, 0.35);
}

.page-home .section-head--wide {
  border-bottom: 0;
  padding-bottom: 0;
  margin-bottom: 26px;
}

.page-home .section-head h2 {
  margin: 6px 0 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .section-head .lede,
.page-home .lede {
  margin: 14px 0 0;
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.7;
  color: var(--paper);
  opacity: 0.88;
}

.page-home .measure {
  max-width: 68ch;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  color: var(--sage);
}

.page-home .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 注册 ---------- */
.page-home .reg {
  background: var(--deep);
}

.page-home .reg-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-home .reg-figure {
  margin: 0;
  border: 2px solid var(--pine);
  box-shadow: 8px 8px 0 rgba(11, 20, 16, 0.8);
  background: var(--panel);
}

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

.page-home .reg-figure figcaption {
  padding: 10px 14px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.6;
  color: var(--sage);
  border-top: 1px solid rgba(44, 90, 66, 0.8);
}

.page-home .steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  counter-reset: step;
}

.page-home .step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid rgba(44, 90, 66, 0.7);
  transition: background-color var(--t-fast), padding-left var(--t-fast);
}

.page-home .step:last-child {
  border-bottom: 1px solid rgba(44, 90, 66, 0.7);
}

.page-home .step:hover,
.page-home .step:focus-within {
  background: rgba(28, 58, 44, 0.7);
  padding-left: 10px;
}

.page-home .step-no {
  font-family: var(--mono);
  font-size: 26px;
  line-height: 1;
  color: var(--gilt);
  letter-spacing: 0.06em;
  transition: color var(--t-fast);
}

.page-home .step:hover .step-no {
  color: var(--gilt-lift);
}

.page-home .step-text h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-home .step-text p {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--sage);
}

.page-home .reg-acts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}

.page-home .reg-note {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--sage);
}

/* ---------- 回放 ---------- */
.page-home .replay {
  background:
    linear-gradient(to bottom, rgba(11, 20, 16, 0.9), var(--deep) 40%),
    var(--deep);
}

.page-home .replay-figure {
  margin: 0 0 28px;
  border: 2px solid var(--pine);
  box-shadow: 10px 10px 0 rgba(11, 20, 16, 0.75);
  background: var(--panel);
}

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

.page-home .replay-figure figcaption {
  padding: 10px 14px;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--sage);
  border-top: 1px solid rgba(44, 90, 66, 0.8);
}

.page-home .replay-panel {
  padding: 20px;
  background: rgba(11, 20, 16, 0.6);
  border: 1px solid var(--pine);
  border-left: 3px solid var(--amber);
  transition: border-color var(--t-mid), background-color var(--t-mid);
}

.page-home .replay-panel:hover {
  border-color: var(--gilt);
  background: rgba(28, 58, 44, 0.5);
}

.page-home .rp-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.page-home .rp-k {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sage);
}

.page-home .rp-v {
  font-family: var(--mono);
  font-size: 16px;
  color: var(--gilt-lift);
  letter-spacing: 0.06em;
}

.page-home .rp-track {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
  margin-bottom: 18px;
}

.page-home .rp-seg {
  height: 28px;
  background: rgba(44, 90, 66, 0.55);
  border-bottom: 2px solid transparent;
  transition: background-color var(--t-fast), border-color var(--t-fast);
}

.page-home .rp-seg--on {
  background: rgba(200, 162, 74, 0.7);
  border-bottom-color: var(--gilt-lift);
}

.page-home .rp-seg--hot {
  background: rgba(178, 58, 46, 0.6);
  border-bottom-color: var(--cinnabar);
}

.page-home .rp-track:hover .rp-seg--on {
  background: var(--gilt);
}

.page-home .rp-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(44, 90, 66, 0.8);
}

.page-home .rp-stats .metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-home .rp-stats .metric-label {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--sage);
}

.page-home .rp-stats .metric-value {
  font-family: var(--mono);
  font-size: 28px;
  line-height: 1;
  color: var(--paper);
  letter-spacing: 0.05em;
}

.page-home .rp-note {
  margin: 18px 0 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--sage);
}

.page-home .replay-anchor {
  margin-top: 24px;
}

/* ---------- 时长分档 ---------- */
.page-home .tempo {
  background: var(--paper);
  color: var(--inktype);
}

.page-home .tempo .section-head {
  border-bottom-color: var(--paper-dim);
}

.page-home .tempo .section-head h2 {
  color: var(--inktype);
}

.page-home .tempo .eyebrow {
  color: var(--cinnabar);
}

.page-home .tempo .measure {
  color: #3A4A40;
}

.page-home .tempo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-home .tempo-table {
  width: 100%;
  margin-top: 22px;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 15px;
}

.page-home .tempo-table th,
.page-home .tempo-table td {
  text-align: left;
  padding: 14px 12px;
  border-bottom: 1px solid var(--paper-dim);
  vertical-align: middle;
}

.page-home .tempo-table thead th {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #5A6B5F;
  border-bottom: 2px solid var(--inktype);
}

.page-home .tempo-table tbody th {
  font-weight: 500;
}

.page-home .tempo-table tbody td.num {
  font-family: var(--mono);
  letter-spacing: 0.06em;
  color: var(--inktype);
  white-space: nowrap;
}

.page-home .tempo-table tbody tr {
  transition: background-color var(--t-fast);
}

.page-home .tempo-table tbody tr:hover,
.page-home .tempo-table tbody tr:focus-within {
  background: rgba(200, 162, 74, 0.18);
}

.page-home .tempo-note {
  margin: 16px 0 0;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: #5A6B5F;
}

.page-home .tempo-figure {
  margin: 0;
  border: 2px solid var(--inktype);
  box-shadow: 8px 8px 0 rgba(16, 26, 20, 0.18);
  background: var(--paper-dim);
}

.page-home .tempo-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .tempo-scale {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.page-home .scale-row {
  display: grid;
  grid-template-columns: 62px 1fr 62px;
  align-items: center;
  gap: 10px;
  transition: opacity var(--t-fast);
}

.page-home .scale-label {
  font-family: var(--sans);
  font-size: 13px;
  color: var(--inktype);
}

.page-home .scale-val {
  font-family: var(--mono);
  font-size: 13px;
  text-align: right;
  color: var(--inktype);
  letter-spacing: 0.04em;
}

.page-home .scale-bar {
  height: 14px;
  border: 1px solid var(--inktype);
}

.page-home .scale-bar--fast {
  width: 30%;
  background: var(--cinnabar);
}

.page-home .scale-bar--std {
  width: 55%;
  background: var(--gilt);
}

.page-home .scale-bar--long {
  width: 92%;
  background: var(--amber);
}

/* ---------- 收藏同步 ---------- */
.page-home .keep {
  background: var(--deep);
}

.page-home .keep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-home .keep-lede {
  margin: 0;
  color: var(--paper);
  opacity: 0.9;
}

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

.page-home .keep-item {
  padding: 18px 0 18px 18px;
  border-left: 2px solid var(--pine);
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.page-home .keep-item:hover {
  border-left-color: var(--gilt);
  background: rgba(28, 58, 44, 0.55);
}

.page-home .keep-item h3 {
  margin: 0 0 6px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--gilt-lift);
}

.page-home .keep-item p {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--sage);
}

.page-home .keep-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 帮助入口 ---------- */
.page-home .split-help {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  background: var(--ink);
}

.page-home .help-card {
  padding: 26px 22px;
  border: 2px solid var(--pine);
  background: var(--panel);
  box-shadow: 8px 8px 0 rgba(11, 20, 16, 0.7);
  transition: border-color var(--t-mid), transform var(--t-mid), background-color var(--t-mid);
}

.page-home .help-card:hover {
  border-color: var(--gilt);
  background: #21412F;
  transform: translateY(-3px);
}

.page-home .help-card h3 {
  margin: 8px 0 12px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(22px, 3.6vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .help-card p {
  margin: 0 0 20px;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--sage);
}

.page-home .help-card--column {
  background: var(--deep);
}

.page-home .help-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 收尾 ---------- */
.page-home .closing {
  background: var(--deep);
  border-bottom: 0;
}

.page-home .closing h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .closing .measure {
  color: var(--paper);
  opacity: 0.86;
}

.page-home .closing-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 860px) {
  .page-home .hero {
    grid-template-columns: 5fr 7fr;
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-home .hero-annot {
    display: block;
    writing-mode: vertical-rl;
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.3em;
    right: -34px;
    top: 8px;
  }

  .page-home .hero-copy {
    position: relative;
    padding-right: 34px;
  }

  .page-home .board {
    margin-top: -80px;
  }

  .page-home .reg-grid {
    grid-template-columns: 5fr 7fr;
  }

  .page-home .tempo-grid {
    grid-template-columns: 7fr 5fr;
  }

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

  .page-home .keep-acts {
    grid-column: 1 / -1;
    margin-top: 6px;
  }

  .page-home .split-help {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
}

@media (min-width: 1180px) {
  .page-home .hero {
    grid-template-columns: 5fr 7fr;
  }

  .page-home .board-chart {
    height: 120px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .help-card,
  .page-home .step,
  .page-home .board,
  .page-home .scale-row {
    transition: none;
  }

  .page-home .help-card:hover {
    transform: none;
  }
}
</main>