.page-home {
  --home-line-strong: rgba(26, 26, 26, 0.18);
  position: relative;
  background-color: var(--c-porcelain);
  background-image:
    linear-gradient(var(--c-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-grid) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
  color: var(--c-text);
  overflow-x: clip;
}

/* ============ 首屏 ============ */
.page-home .home-hero {
  position: relative;
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(36px, 5.5vw, 68px);
}

.page-home .hero-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(20px, 2.6vw, 30px);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-graphite);
}

.page-home .hero-context .mono {
  color: var(--c-red);
  font-weight: 600;
  letter-spacing: 0.12em;
}

.page-home .hero-context-sep {
  color: var(--c-gold);
}

.page-home .hero-grid {
  display: grid;
  gap: clamp(20px, 2.6vw, 34px);
}

.page-home .hero-title {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(30px, 4.6vw, 48px);
  line-height: 1.22;
  letter-spacing: 0.045em;
  color: var(--c-ink);
  max-width: 14em;
}

.page-home .hero-title::after {
  content: "";
  display: block;
  width: 68px;
  height: 3px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--c-red), var(--c-gold));
}

.page-home .hero-lede {
  max-width: 34em;
  color: var(--c-graphite);
}

.page-home .hero-aside {
  position: relative;
  margin: 0;
  border: 1px solid var(--home-line-strong);
  box-shadow: var(--shadow-lift);
  background: var(--c-ink);
}

.page-home .hero-aside img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .hero-anchor {
  position: absolute;
  left: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 24px 16px;
  background: var(--c-ink);
  border-top: 2px solid var(--c-gold);
  border-right: 2px solid var(--c-gold);
}

.page-home .hero-anchor-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-gold-light);
}

.page-home .hero-anchor-num {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.1;
  color: var(--c-white);
  letter-spacing: 0.04em;
}

.page-home .hero-anchor-note {
  margin-top: 4px;
  font-size: 12px;
  color: rgba(247, 244, 239, 0.62);
}

/* ---- 拼贴信息块 ---- */
.page-home .hero-collage {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-home .tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 20px 26px;
  background: var(--c-white);
  border: 1px solid var(--home-line-strong);
  box-shadow: var(--shadow-paper);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.35s var(--ease), box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.page-home .tile::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--c-gold);
  transition: background-color 0.35s var(--ease);
}

.page-home .tile:hover,
.page-home .tile:focus-visible {
  border-color: var(--c-red);
  box-shadow: var(--shadow-lift);
  transform: translate(-2px, -2px);
  outline: none;
}

.page-home .tile:hover::before,
.page-home .tile:focus-visible::before {
  background: var(--c-red);
}

.page-home .tile-no {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-gold);
}

.page-home .tile-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(18px, 1.6vw, 22px);
  line-height: 1.4;
  letter-spacing: 0.03em;
  color: var(--c-ink);
}

.page-home .tile-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-graphite);
}

.page-home .tile-cta {
  margin-top: auto;
  padding-top: 6px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-red);
}

.page-home .tile-cta::after {
  content: " →";
}

/* ============ 三条主线 ============ */
.page-home .home-lanes {
  padding-bottom: clamp(40px, 5.5vw, 70px);
}

.page-home .lanes-banner {
  margin: 26px 0 30px;
}

.page-home .lanes-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1600 / 520;
  object-fit: cover;
  border: 1px solid var(--home-line-strong);
}

.page-home .lanes-banner .frame-caption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-graphite);
}

.page-home .lane-scroller {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px var(--gutter) 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--c-gold) var(--c-gold-light);
}

.page-home .lane-scroller::-webkit-scrollbar {
  height: 6px;
}

.page-home .lane-scroller::-webkit-scrollbar-track {
  background: var(--c-gold-light);
}

.page-home .lane-scroller::-webkit-scrollbar-thumb {
  background: var(--c-gold);
}

.page-home .lane-scroller:focus-visible {
  outline: 2px solid var(--c-red);
  outline-offset: -4px;
}

.page-home .lane {
  flex: 0 0 min(84vw, 430px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px 24px;
  background: var(--c-white);
  border: 1px solid var(--home-line-strong);
  border-top-width: 3px;
  box-shadow: var(--shadow-paper);
}

.page-home .lane-sub {
  border-top-color: var(--c-red);
}

.page-home .lane-ver {
  border-top-color: var(--c-gold);
}

.page-home .lane-adapt {
  border-top-color: var(--c-jade);
}

.page-home .lane-no {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-graphite);
}

.page-home .lane-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: 0.05em;
  color: var(--c-ink);
}

.page-home .lane-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-graphite);
}

.page-home .lane-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 4px 0 6px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-home .lane-meta-cell {
  padding: 12px 14px;
  background: var(--c-porcelain);
}

.page-home .lane-meta dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-graphite);
}

.page-home .lane-meta dd {
  margin: 4px 0 0;
  font-size: 14px;
  color: var(--c-ink);
}

.page-home .lane .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ============ 本季度变化 ============ */
.page-home .upd-grid {
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--home-line-strong);
}

.page-home .upd-item {
  padding: 26px 24px;
  background: var(--c-white);
}

.page-home .upd-title {
  margin: 12px 0 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}

.page-home .upd-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-graphite);
}

.page-home .upd-meta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--c-gold-light);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-blueprint);
}

.page-home .stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--c-line);
  border: 1px solid var(--home-line-strong);
}

.page-home .stat {
  padding: 20px 18px;
  background: var(--c-porcelain);
}

.page-home .stat-value {
  display: block;
  font-size: clamp(20px, 2.2vw, 28px);
  line-height: 1.3;
  color: var(--c-red);
  letter-spacing: 0.02em;
}

.page-home .stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-graphite);
}

/* ============ 多端同步 ============ */
.page-home .sync-layout {
  display: grid;
  gap: 22px;
}

.page-home .sync-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .sync-node {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 13px 14px;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-jade);
  font-size: 14px;
  color: var(--c-ink);
}

.page-home .sync-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-graphite);
}

.page-home .sync-figure,
.page-home .steps-figure {
  margin: 0;
}

.page-home .sync-figure img,
.page-home .steps-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--home-line-strong);
  object-fit: cover;
}

.page-home .sync-figure .frame-caption,
.page-home .steps-figure .frame-caption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-graphite);
}

/* ---- 换设备三步 ---- */
.page-home .steps-block {
  margin-top: clamp(34px, 4vw, 52px);
  padding-top: 26px;
  border-top: 1px solid var(--c-gold);
}

.page-home .steps-heading {
  margin: 0 0 22px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(20px, 2vw, 24px);
  letter-spacing: 0.05em;
  color: var(--c-ink);
}

.page-home .steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-home .step {
  padding: 20px 20px 18px;
  background: var(--c-white);
  border: 1px solid var(--home-line-strong);
  border-top: 3px solid var(--c-red);
  box-shadow: var(--shadow-paper);
}

.page-home .step-no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-gold);
}

.page-home .step-title {
  margin: 8px 0 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.03em;
  color: var(--c-ink);
}

.page-home .step-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-graphite);
}

/* ============ 场景入口 ============ */
.page-home .scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .scene-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 24px;
  background: var(--c-white);
  border: 1px solid var(--home-line-strong);
  box-shadow: var(--shadow-paper);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-home .scene-card:hover,
.page-home .scene-card:focus-visible {
  border-color: var(--c-red);
  box-shadow: var(--shadow-lift);
  background: var(--c-white);
  outline: none;
}

.page-home .scene-tag {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-gold);
}

.page-home .scene-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 21px;
  letter-spacing: 0.04em;
  color: var(--c-ink);
}

.page-home .scene-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-graphite);
}

.page-home .scene-cta {
  margin-top: auto;
  padding-top: 8px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-red);
}

.page-home .scene-cta::after {
  content: " →";
}

/* ============ 收尾 ============ */
.page-home .home-closer {
  position: relative;
  background: var(--c-ink);
  color: var(--c-porcelain);
}

.page-home .home-closer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--c-red), var(--c-gold));
}

.page-home .closer-inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.page-home .closer-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(21px, 2.4vw, 30px);
  line-height: 1.4;
  letter-spacing: 0.05em;
  color: var(--c-white);
  max-width: 18em;
}

.page-home .closer-text {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(247, 244, 239, 0.78);
}

/* ============ 响应式 ============ */
@media (min-width: 760px) {
  .page-home .upd-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .scene-card:nth-child(2) {
    margin-top: 10px;
  }

  .page-home .scene-card:nth-child(3) {
    margin-top: 20px;
  }

  .page-home .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .hero-lead {
    grid-column: 1 / 7;
    padding-right: 12px;
  }

  .page-home .hero-aside {
    grid-column: 7 / 13;
  }

  .page-home .hero-collage {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .tile-sub {
    grid-column: 1 / 6;
  }

  .page-home .tile-ver {
    grid-column: 6 / 10;
  }

  .page-home .tile-adapt {
    grid-column: 10 / 13;
  }

  .page-home .sync-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-home .lane {
    flex-basis: 420px;
  }
}

@media (min-width: 1200px) {
  .page-home .lane {
    flex-basis: 460px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .tile,
  .page-home .tile::before,
  .page-home .scene-card {
    transition: none;
  }

  .page-home .tile:hover,
  .page-home .tile:focus-visible {
    transform: none;
  }
}