.page-home {
  --home-edge: 1px solid var(--grid);
  --home-radius: 0;
  display: block;
  overflow-x: clip;
}

/* ---------- 页内章节索引 ---------- */
.page-home .section-index {
  display: none;
}

@media (min-width: 1500px) {
  .page-home .section-index {
    display: flex;
    flex-direction: column;
    gap: 14px;
    position: fixed;
    top: 40vh;
    left: calc((100vw - var(--shell)) / 2 - 88px);
    z-index: 20;
  }

  .page-home .section-index a {
    display: block;
    padding-left: 12px;
    border-left: 1px solid var(--grid);
    font-family: var(--mono);
    font-size: 12px;
    letter-spacing: 0.14em;
    color: var(--ash);
    text-decoration: none;
    transition: color 0.2s ease, border-color 0.2s ease, padding-left 0.2s ease;
  }

  .page-home .section-index a:hover,
  .page-home .section-index a[aria-current="true"] {
    color: var(--cyan);
    border-left-color: var(--coral);
    padding-left: 16px;
  }
}

/* ---------- 首屏框景 ---------- */
.page-home .hero {
  padding-top: clamp(18px, 3.5vw, 40px);
}

.page-home .hero-frame {
  position: relative;
  background:
    radial-gradient(120% 92% at 84% 6%, rgba(86, 224, 208, 0.11), transparent 58%),
    radial-gradient(96% 84% at 4% 96%, rgba(255, 107, 74, 0.11), transparent 62%),
    var(--abyss);
}

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

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-home .hero-copy .eyebrow {
  margin: 0 0 18px;
}

.page-home .hero-copy .display {
  margin: 0 0 20px;
  max-width: 18ch;
}

.page-home .hero-copy .lede {
  max-width: 48ch;
}

.page-home .hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 18px;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding-top: 20px;
  border-top: var(--home-edge);
}

.page-home .hero-stat {
  min-width: 0;
}

.page-home .hero-stats dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ash);
  margin: 0;
}

.page-home .hero-stats dd {
  margin: 8px 0 0;
  font-family: var(--mono);
  font-size: clamp(19px, 2.3vw, 27px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 34px);
}

.page-home .hero-visual {
  position: relative;
  margin: 0;
  border: var(--home-edge);
  border-radius: var(--home-radius);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--slate);
}

.page-home .hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(158deg, rgba(86, 224, 208, 0.12), transparent 46%, rgba(255, 107, 74, 0.14));
}

.page-home .hero-visual img,
.page-home .rooms-visual img,
.page-home .flow-visual img,
.page-home .legacy-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 图片角部说明条 ---------- */
.page-home .media-frame {
  position: relative;
}

.page-home .media-frame-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 14px 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--bone);
  background: linear-gradient(180deg, rgba(6, 26, 43, 0), rgba(6, 26, 43, 0.88));
}

/* ---------- 选房章节 ---------- */
.page-home .rooms-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 880px) {
  .page-home .rooms-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }

  .page-home .rooms-visual {
    margin-top: 40px;
  }
}

.page-home .rooms-copy p {
  margin: 0 0 18px;
}

.page-home .rooms-copy p:last-child {
  margin-bottom: 0;
}

.page-home .rooms-visual {
  position: relative;
  margin: 0;
  border: var(--home-edge);
  border-radius: var(--home-radius);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--slate);
}

.page-home .rooms-visual::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--coral), var(--violet));
  z-index: 2;
}

.page-home .room-tiers {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(32px, 5vw, 56px);
}

@media (min-width: 620px) {
  .page-home .room-tiers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-home .room-tiers {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.page-home .room-card {
  position: relative;
  min-width: 0;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.page-home .room-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.28s ease;
}

.page-home .room-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
}

.page-home .room-card:hover::after {
  transform: scaleX(1);
}

.page-home .room-card .card-title {
  margin: 10px 0 10px;
}

.page-home .room-card .card-foot {
  margin-top: 16px;
}

/* ---------- 流程章节 ---------- */
.page-home .flow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(26px, 4vw, 44px);
}

@media (min-width: 960px) {
  .page-home .flow-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-home .flow-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .flow-step {
  position: relative;
  padding: 22px 0 22px 60px;
  border-top: var(--home-edge);
}

.page-home .flow-step:last-child {
  border-bottom: var(--home-edge);
}

.page-home .flow-step::before {
  content: "";
  position: absolute;
  left: 34px;
  top: 26px;
  bottom: 26px;
  width: 1px;
  background: var(--grid);
}

.page-home .flow-num {
  position: absolute;
  left: 0;
  top: 22px;
  font-size: 14px;
  letter-spacing: 0.14em;
  color: var(--coral);
}

.page-home .flow-title {
  margin: 0 0 10px;
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--bone);
}

.page-home .flow-step p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ash);
}

.page-home .flow-visual {
  position: relative;
  margin: 0;
  border: var(--home-edge);
  border-radius: var(--home-radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--slate);
}

.page-home .flow-visual::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--cyan);
  z-index: 2;
}

/* ---------- 米白数字区 ---------- */
.page-home .home-numbers {
  background: var(--bone);
  color: var(--abyss);
  clip-path: polygon(0 3.5%, 100% 0, 100% 96.5%, 0 100%);
  padding-block: clamp(58px, 8vw, 104px);
  margin-block: clamp(16px, 3vw, 32px);
}

.page-home .numbers-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(22px, 3.4vw, 44px);
}

@media (min-width: 880px) {
  .page-home .numbers-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-home .numbers-item {
  position: relative;
  min-width: 0;
  padding-top: 16px;
  border-top: 2px solid var(--coral);
}

.page-home .numbers-num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(28px, 4.2vw, 50px);
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--abyss);
  white-space: nowrap;
}

.page-home .numbers-label {
  display: block;
  margin-top: 14px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

.page-home .numbers-note {
  margin: clamp(28px, 4vw, 44px) 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 旧版本入口章节 ---------- */
.page-home .legacy-visual {
  position: relative;
  margin: 0 0 clamp(28px, 4vw, 46px);
  border: var(--home-edge);
  border-radius: var(--home-radius);
  overflow: hidden;
  aspect-ratio: 12 / 7;
  background: var(--slate);
}

.page-home .legacy-visual::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  z-index: 2;
}

.page-home .legacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

@media (min-width: 880px) {
  .page-home .legacy-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

.page-home .legacy-copy p {
  margin: 0 0 18px;
}

.page-home .legacy-copy .btn {
  margin-top: 6px;
}

.page-home .legacy-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 620px) {
  .page-home .legacy-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-home .legacy-item {
  min-width: 0;
  padding: 18px 20px;
  border: var(--home-edge);
  border-left: 3px solid var(--violet);
  border-radius: var(--home-radius);
  background: linear-gradient(180deg, rgba(123, 92, 255, 0.1), rgba(16, 48, 74, 0.5) 72%);
}

.page-home .legacy-key {
  display: block;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin-bottom: 10px;
}

.page-home .legacy-text {
  display: block;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ash);
}

/* ---------- 规则时间线 ---------- */
.page-home .home-timeline {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-home .home-timeline .timeline-item {
  padding-bottom: clamp(24px, 3.4vw, 38px);
}

.page-home .tl-ver {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--clay);
}

.page-home .tl-title {
  margin: 10px 0 8px;
  font-size: clamp(17px, 1.7vw, 20px);
  font-weight: 700;
  line-height: 1.32;
  color: var(--bone);
}

.page-home .home-timeline p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ash);
}

.page-home .rules-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: clamp(16px, 3vw, 28px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: var(--home-edge);
}

@media (min-width: 820px) {
  .page-home .rules-foot {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
  }
}

.page-home .rules-foot p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ash);
}

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

/* ---------- 服务与联系 ---------- */
.page-home .service-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
  padding-top: clamp(8px, 2vw, 20px);
}

@media (min-width: 880px) {
  .page-home .service-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-home .service-copy .eyebrow {
  margin: 0 0 16px;
}

.page-home .service-copy .section-title {
  margin: 0 0 20px;
}

.page-home .service-copy p {
  margin: 0 0 16px;
  max-width: 58ch;
}

.page-home .service-copy p:last-child {
  margin-bottom: 0;
}

.page-home .service-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
  padding: 24px;
  border: var(--home-edge);
  border-top: 3px solid var(--moss);
  border-radius: var(--home-radius);
  background: rgba(16, 48, 74, 0.5);
}

.page-home .service-actions .btn {
  text-align: center;
}

/* ---------- 返回顶部 ---------- */
.page-home .to-top {
  position: fixed;
  right: clamp(14px, 3vw, 34px);
  bottom: clamp(14px, 3vw, 34px);
  z-index: 40;
  display: none;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: var(--home-edge);
  border-radius: var(--home-radius);
  background: rgba(6, 26, 43, 0.92);
  text-decoration: none;
}

.page-home .to-top[data-visible] {
  display: inline-flex;
}

.page-home .to-top-arrow {
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1;
  color: var(--coral);
}

.page-home .to-top-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--bone);
}

/* ---------- 揭示动效与降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .room-card,
  .page-home .room-card::after,
  .page-home .section-index a {
    transition: none;
  }

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

/* ---------- 窄屏收束 ---------- */
@media (max-width: 560px) {
  .page-home .hero-copy .display {
    max-width: none;
  }

  .page-home .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .hero-stats dd {
    font-size: 18px;
    white-space: normal;
  }

  .page-home .flow-step {
    padding-left: 44px;
  }

  .page-home .flow-step::before {
    left: 24px;
  }

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

  .page-home .numbers-num {
    font-size: 30px;
  }

  .page-home .home-numbers {
    clip-path: polygon(0 1.6%, 100% 0, 100% 98.4%, 0 100%);
  }

  .page-home .service-actions {
    padding: 18px;
  }
}