.page-home {
  --home-panel: #141E2A;
  --home-edge: rgba(201, 164, 92, 0.22);
  --home-sheen: linear-gradient(160deg, rgba(20, 30, 42, 0.96), rgba(8, 11, 16, 0.92));
  display: block;
  padding-bottom: clamp(40px, 7vw, 88px);
  color: var(--warm);
  background-color: var(--ink);
  background-image:
    radial-gradient(760px 420px at 86% -6%, rgba(201, 164, 92, 0.16), transparent 68%),
    linear-gradient(180deg, #111A24 0%, #0b1017 48%, #080B10 100%);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(26px, 5vw, 54px) clamp(40px, 6vw, 84px);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: -14% -34% 38% 34%;
  background: linear-gradient(135deg, rgba(201, 164, 92, 0.16), rgba(27, 39, 53, 0.06) 56%, transparent 82%);
  clip-path: polygon(20% 0, 100% 0, 100% 68%, 0 100%);
  pointer-events: none;
}

.page-home .hero-inner {
  position: relative;
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-home .hero-rail {
  padding-left: clamp(14px, 2vw, 26px);
  border-left: 1px solid var(--line);
}

.page-home .page-context {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cool);
}

.page-home .ctx-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(201, 74, 58, 0.18);
  flex: none;
}

.page-home .hero-title {
  margin: clamp(16px, 3vw, 26px) 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.45rem, 8.4vw, 5.6rem);
  line-height: 1.04;
  letter-spacing: 0.07em;
  color: var(--warm);
}

.page-home .hero-title-em {
  background: linear-gradient(102deg, var(--brass-light) 0%, var(--brass) 58%, #8d7038 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-home .hero-lede {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 36em;
  font-size: clamp(1rem, 0.55vw + 0.9rem, 1.125rem);
  line-height: 1.85;
  color: var(--warm-gray);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-home .hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3vw, 44px);
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.page-home .hero-stat dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cool);
}

.page-home .hero-stat dd {
  margin: 6px 0 0;
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 700;
  color: var(--brass-light);
}

.page-home .hero-stage {
  position: relative;
}

.page-home .hero-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.55);
  background: var(--home-panel);
}

.page-home .hero-figure::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(230, 205, 147, 0.22);
  pointer-events: none;
}

.page-home .hero-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

.page-home .hero-plate {
  position: relative;
  margin: -26px clamp(8px, 2vw, 20px) 0;
  padding: clamp(14px, 2vw, 20px);
  background: var(--home-sheen);
  border: 1px solid var(--line-strong);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.5);
}

.page-home .plate-label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cool);
}

.page-home .plate-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .plate-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  font-size: 13px;
  color: var(--cool);
  border: 1px solid var(--line-soft);
  background: rgba(8, 11, 16, 0.5);
}

.page-home .plate-chip--on {
  color: var(--brass-light);
  border-color: var(--line-strong);
  background: linear-gradient(120deg, rgba(201, 164, 92, 0.16), rgba(8, 11, 16, 0.6));
  box-shadow: inset 3px 0 0 var(--cinnabar);
}

.page-home .plate-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm-gray);
}

/* ---------- 章节骨架 ---------- */
.page-home .block {
  position: relative;
  padding-block: clamp(42px, 7vw, 92px);
}

.page-home .block--versions {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(17, 26, 36, 0.92), rgba(8, 11, 16, 0.36));
}

.page-home .block--cats {
  background: linear-gradient(180deg, rgba(8, 11, 16, 0.2), rgba(17, 26, 36, 0.62));
}

.page-home .block-inner {
  display: grid;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-home .block-head {
  padding-bottom: clamp(18px, 3vw, 26px);
  border-bottom: 1px solid var(--line);
}

.page-home .block-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.7rem, 3.5vw, 2.9rem);
  line-height: 1.18;
  letter-spacing: 0.05em;
  color: var(--warm);
}

.page-home .block-text {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 40em;
  font-size: clamp(15px, 0.4vw + 0.85rem, 17px);
  line-height: 1.88;
  color: var(--warm-gray);
}

.page-home .block-note {
  margin: 14px 0 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cool);
}

/* ---------- 版本对照 ---------- */
.page-home .versions-visual .figure-frame--square {
  box-shadow: 0 24px 54px rgba(0, 0, 0, 0.5);
}

.page-home .versions-list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .versions-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--warm-gray);
}

.page-home .versions-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 12px;
  height: 1px;
  background: var(--brass);
}

.page-home .versions-body .btn {
  margin-top: clamp(22px, 3.4vw, 30px);
}

/* ---------- 分类 ---------- */
.page-home .cat-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  grid-template-columns: 1fr;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-home .cat-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(165deg, rgba(27, 39, 53, 0.86), rgba(8, 11, 16, 0.72));
  border: 1px solid var(--line);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-home .cat-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 26px;
  height: 26px;
  border-top: 1px solid var(--brass);
  border-left: 1px solid var(--brass);
}

.page-home .cat-card:hover,
.page-home .cat-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.46);
}

.page-home .cat-index {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--brass);
}

.page-home .cat-title {
  margin: 14px 0 0;
  font-size: clamp(18px, 1.6vw, 21px);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--warm);
}

.page-home .cat-text {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--warm-gray);
}

.page-home .cats-foot {
  display: grid;
  gap: clamp(16px, 3vw, 24px);
  margin-top: clamp(24px, 4vw, 38px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-soft);
}

.page-home .cats-foot .block-text {
  margin: 0;
}

.page-home .cats-foot .btn {
  justify-self: start;
}

/* ---------- 规则先行 ---------- */
.page-home .step-list {
  list-style: none;
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home .step-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  padding-block: clamp(14px, 2vw, 20px);
  border-top: 1px solid var(--line-soft);
}

.page-home .step-list li:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-home .step-num {
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--brass);
  padding-top: 3px;
}

.page-home .step-title {
  margin: 0;
  font-size: clamp(16px, 1.3vw, 18px);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--warm);
}

.page-home .step-text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--warm-gray);
}

.page-home .rules-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 30px);
}

.page-home .rules-visual .figure-frame--wide {
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.48);
}

/* ---------- 地标与联系 ---------- */
.page-home .landmark-visual .figure-frame--portrait {
  box-shadow: 0 22px 48px rgba(0, 0, 0, 0.5);
}

.page-home .fact-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(22px, 3.4vw, 32px) 0 0;
  padding: 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-home .fact-list li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(14px, 2vw, 18px);
  background: rgba(8, 11, 16, 0.72);
}

.page-home .fact-num {
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  color: var(--brass-light);
}

.page-home .fact-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cool);
}

.page-home .contact-card {
  position: relative;
  margin-top: clamp(24px, 4vw, 36px);
  padding: clamp(20px, 3vw, 28px);
  background: var(--home-sheen);
  border: 1px solid var(--line);
}

.page-home .contact-card::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 30px;
  height: 30px;
  border-bottom: 1px solid var(--brass);
  border-right: 1px solid var(--brass);
}

.page-home .contact-title {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--brass-light);
}

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

.page-home .contact-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.7;
}

.page-home .contact-key {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cool);
}

.page-home .contact-val {
  color: var(--warm);
  text-decoration: none;
  word-break: break-word;
}

.page-home a.contact-val:hover,
.page-home a.contact-val:focus-visible {
  color: var(--brass-light);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-home .contact-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.78;
  color: var(--cool);
}

.page-home .landmark-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .cats-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .page-home .fact-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .hero-inner {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(32px, 4vw, 60px);
    align-items: center;
  }

  .page-home .hero-rail {
    padding-top: clamp(8px, 2vw, 26px);
  }

  .page-home .hero-stage {
    margin-top: clamp(12px, 3vw, 54px);
  }

  .page-home .block-inner {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-home .block-inner--flip {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-home .block-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 24px;
  }

  .page-home .block-head .eyebrow,
  .page-home .block-head .block-title {
    grid-column: 1;
  }

  .page-home .block-head .block-note {
    grid-column: 2;
    grid-row: 1 / span 2;
    margin: 0;
    text-align: right;
  }
}

@media (min-width: 1180px) {
  .page-home .hero-plate {
    margin-inline: clamp(16px, 2vw, 34px) clamp(-8px, -1vw, 0px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .cat-card {
    transition: none;
  }

  .page-home .cat-card:hover,
  .page-home .cat-card:focus-within {
    transform: none;
  }
}