.page-home {
  background: var(--void);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏拼贴 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 5vw, 60px) 0 clamp(52px, 7vw, 96px);
  border-bottom: 1px solid var(--grid);
}

.page-home .hero__visual {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-home .hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.page-home .hero__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(102deg, var(--void) 6%, rgba(11, 16, 48, 0.86) 40%, rgba(11, 16, 48, 0.24) 100%);
}

.page-home .hero__track {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6%;
  width: 100%;
  height: 44%;
  z-index: -1;
  opacity: 0.75;
  pointer-events: none;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  left: -6%;
  right: 34%;
  bottom: 20px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan) 28%, var(--violet) 74%, transparent);
  transform: rotate(-1.2deg);
  transform-origin: left bottom;
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
}

.page-home .hero__context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: 0 0 clamp(14px, 2.6vw, 26px);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-home .hero__sep {
  color: var(--grid);
}

.page-home .hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(38px, 10vw, 104px);
  line-height: 0.92;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-home .hero__title em {
  font-style: normal;
  color: var(--cyan);
  text-shadow: 0 0 44px rgba(53, 230, 208, 0.32);
}

.page-home .hero__lede {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  max-width: 30em;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--text-soft);
}

.page-home .hero__side {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-home .hero__index {
  position: relative;
  padding: 14px 16px 16px;
  border: 1px solid var(--grid);
  background: rgba(38, 25, 92, 0.5);
  backdrop-filter: blur(6px);
  opacity: 0.84;
  transition: opacity 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.page-home .hero__index:hover,
.page-home .hero__index:focus-within {
  opacity: 1;
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(53, 230, 208, 0.22), 0 18px 46px -22px rgba(53, 230, 208, 0.7);
}

.page-home .hero__index-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--hair);
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.12em;
  color: var(--lavender);
}

.page-home .hero__index ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .hero__entry {
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 10px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--hair);
  text-decoration: none;
  color: var(--text);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-home .hero__index li:last-child .hero__entry {
  border-bottom: 0;
}

.page-home .hero__entry:hover,
.page-home .hero__entry:focus-visible {
  background: rgba(53, 230, 208, 0.09);
  transform: translateX(3px);
}

.page-home .hero__entry-code {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.08em;
  color: var(--cyan);
  transition: color 0.25s var(--ease);
}

.page-home .hero__entry:hover .hero__entry-code {
  color: var(--amber);
}

.page-home .hero__entry-name {
  font-size: var(--step-4);
  font-weight: 600;
}

.page-home .hero__entry-sub {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-home .hero__status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  margin: 0;
  padding: 10px 14px;
  border: 1px solid rgba(255, 138, 61, 0.42);
  background: linear-gradient(118deg, rgba(255, 138, 61, 0.16), rgba(108, 75, 224, 0.18));
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.page-home .hero__status strong {
  font-size: var(--step-2);
  font-weight: 600;
  color: var(--amber);
}

/* ---------- 屏块骨架 ---------- */
.page-home .section {
  position: relative;
  padding: clamp(52px, 8vw, 104px) 0;
}

.page-home .section-num {
  display: inline-block;
  margin: 0 0 12px;
  padding-left: 10px;
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: 0.16em;
  color: var(--lavender);
  transition: color 0.35s var(--ease), border-color 0.35s var(--ease);
}

.page-home .section[data-active] .section-num {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-home .section-title {
  margin: 0 0 clamp(14px, 2vw, 22px);
  font-family: var(--font-display);
  font-size: clamp(26px, 4.4vw, 52px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--cream);
}

.page-home .prose {
  margin: 0;
  max-width: 34em;
  font-size: var(--step-3);
  line-height: 1.78;
  color: var(--text-soft);
}

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

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

/* ---------- 01 导航合并 ---------- */
.page-home .section--merge {
  background:
    radial-gradient(120% 80% at 12% 0%, rgba(38, 25, 92, 0.9), transparent 62%),
    var(--void);
}

.page-home .merge-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-home .merge-paper {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--cream);
  color: var(--ink);
  border-left: 3px solid var(--rust);
}

.page-home .merge-paper__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.16em;
  color: var(--rust);
}

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

.page-home .merge-steps li {
  position: relative;
  margin: 0 0 13px;
  padding-left: 2.6em;
  font-size: var(--step-3);
  line-height: 1.7;
}

.page-home .merge-steps li:last-child {
  margin-bottom: 0;
}

.page-home .merge-steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.14em;
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: 0.06em;
  color: var(--rust);
}

.page-home .merge-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--paper-line);
  font-size: var(--step-2);
  line-height: 1.66;
  color: rgba(34, 24, 18, 0.78);
}

/* ---------- 02 两版对照 ---------- */
.page-home .section--compare {
  background: linear-gradient(180deg, var(--void) 0%, var(--nebula) 52%, var(--void) 100%);
}

.page-home .compare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-home .diff-list {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}

.page-home .diff-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hair);
}

.page-home .diff-row dt {
  font-size: var(--step-3);
  color: var(--text);
}

.page-home .diff-row dd {
  margin: 0;
}

.page-home .compare-cta {
  margin: clamp(20px, 3vw, 28px) 0 0;
}

/* ---------- 03 内容规模 ---------- */
.page-home .section--ledger {
  background: var(--void);
}

.page-home .ledger-banner {
  position: relative;
  margin: 0 0 clamp(30px, 4vw, 52px);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
  overflow: hidden;
}

.page-home .ledger-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  opacity: 0.82;
}

.page-home .ledger-banner figcaption {
  position: absolute;
  left: var(--pad);
  right: var(--pad);
  bottom: clamp(14px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: 0.08em;
  color: var(--cream);
  text-shadow: 0 2px 22px rgba(11, 16, 48, 0.95);
}

.page-home .ledger-lede {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-home .ledger-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
}

.page-home .ledger-card {
  position: relative;
  padding: clamp(18px, 2.2vw, 26px);
  border: 1px solid var(--grid);
  background: rgba(38, 25, 92, 0.4);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-home .ledger-card:hover {
  border-color: var(--violet);
  background: rgba(38, 25, 92, 0.66);
  transform: translateY(-3px);
}

.page-home .ledger-card .count {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--amber);
}

.page-home .ledger-card .count small {
  margin-left: 0.35em;
  font-size: 0.4em;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.page-home .ledger-card h3 {
  margin: 0 0 8px;
  font-size: var(--step-4);
  font-weight: 600;
  color: var(--cream);
}

.page-home .ledger-card p {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.68;
  color: var(--text-soft);
}

.page-home .ledger-card--paper {
  background: var(--cream);
  border-color: var(--rust);
  color: var(--ink);
}

.page-home .ledger-card--paper:hover {
  background: var(--cream);
  border-color: var(--rust);
}

.page-home .ledger-card--paper .count {
  color: var(--rust);
}

.page-home .ledger-card--paper .count small {
  color: rgba(34, 24, 18, 0.6);
}

.page-home .ledger-card--paper h3 {
  color: var(--ink);
}

.page-home .ledger-card--paper p {
  color: rgba(34, 24, 18, 0.78);
}

/* ---------- 04 分流 ---------- */
.page-home .section--routes {
  background: var(--cream);
  color: var(--ink);
}

.page-home .section--routes .section-num {
  color: var(--rust);
  border-left-color: var(--rust);
}

.page-home .section--routes .section-title {
  color: var(--ink);
}

.page-home .routes-lede {
  max-width: 32em;
  color: rgba(34, 24, 18, 0.76);
}

.page-home .route-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--paper-line);
}

.page-home .route-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 4px 14px;
  padding: clamp(14px, 2vw, 20px) 0;
  border-bottom: 1px solid var(--paper-line);
  text-decoration: none;
  color: var(--ink);
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-home .route-link:hover,
.page-home .route-link:focus-visible {
  color: var(--rust);
  padding-left: 8px;
}

.page-home .route-idx {
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.1em;
  color: var(--rust);
}

.page-home .route-name {
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 600;
}

.page-home .route-arrow {
  font-family: var(--font-mono);
  color: var(--rust);
  transition: transform 0.25s var(--ease);
}

.page-home .route-link:hover .route-arrow {
  transform: translateX(4px);
}

.page-home .route-desc {
  grid-column: 2 / 3;
  font-size: var(--step-2);
  line-height: 1.66;
  color: rgba(34, 24, 18, 0.72);
  transition: color 0.25s var(--ease);
}

.page-home .route-link:hover .route-desc {
  color: var(--rust);
}

/* ---------- 入场 ---------- */
@keyframes home-rise {
  from {
    opacity: 0.01;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-home [data-revealed="true"] {
  animation: home-rise 0.5s var(--ease) both;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-home .ledger-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .hero__visual {
    left: 30%;
  }

  .page-home .hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(24px, 3vw, 48px);
  }

  .page-home .hero__side {
    width: 100%;
    justify-self: end;
  }

  .page-home .merge-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .merge-figure {
    margin-top: 6px;
  }

  .page-home .compare-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-home .compare-figure {
    margin-top: -32px;
  }
}

@media (min-width: 1000px) {
  .page-home .ledger-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .ledger-card--a {
    grid-column: span 5;
  }

  .page-home .ledger-card--b {
    grid-column: span 4;
    margin-top: 26px;
  }

  .page-home .ledger-card--c {
    grid-column: span 3;
    margin-top: 52px;
  }

  .page-home .ledger-card--d {
    grid-column: span 7;
  }

  .page-home .ledger-card--e {
    grid-column: span 5;
    margin-top: 26px;
  }

  .page-home .ledger-card--f {
    grid-column: span 5;
    margin-top: -18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    animation: none !important;
    transition: none !important;
  }

  .page-home .ledger-card:hover {
    transform: none;
  }
}