.page-home {
  --home-card: #FBF8F1;
  --home-muted: #5F5766;
  background: var(--paper);
  color: var(--text);
  overflow-x: hidden;
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

.page-home .section {
  padding: clamp(56px, 8vw, 104px) 0;
}

.page-home .sec-head {
  max-width: 64ch;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-home .sec-head--tight {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-home .sec-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1.28;
  letter-spacing: 0.01em;
  margin: 12px 0 14px;
}

.page-home .sec-lede {
  font-size: 16px;
  line-height: 1.85;
  color: var(--home-muted);
  max-width: 56ch;
}

.page-home .section--ink .sec-lede,
.page-home .section--indigo .sec-lede {
  color: rgba(246, 242, 233, 0.78);
}

.page-home .section--ink .sec-title,
.page-home .section--indigo .sec-title {
  color: var(--paper);
}

.page-home .section--ink .eyebrow,
.page-home .section--indigo .eyebrow {
  color: var(--grape-lite);
  border-bottom-color: rgba(164, 111, 196, 0.5);
}

/* ---------- 封面首屏 ---------- */
.page-home .cover {
  position: relative;
  background: radial-gradient(120% 90% at 82% 6%, #341A52 0%, var(--ink) 58%, #150822 100%);
  color: var(--paper);
  padding: clamp(22px, 3vh, 34px) 0 clamp(46px, 7vh, 84px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-home .cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(164, 111, 196, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(164, 111, 196, 0.16) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-home .cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 55%;
  background: linear-gradient(to bottom, rgba(27, 11, 43, 0.55), transparent);
  pointer-events: none;
}

.page-home .cover .breadcrumb {
  position: relative;
  z-index: 3;
  max-width: var(--shell);
  margin: 0 auto clamp(26px, 4vh, 46px);
  padding: 0 var(--gutter);
}

.page-home .cover .breadcrumb-link,
.page-home .cover .breadcrumb-current,
.page-home .cover .breadcrumb-sep {
  color: rgba(246, 242, 233, 0.72);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-home .cover .breadcrumb-link:hover {
  color: var(--green);
}

.page-home .cover-grid {
  position: relative;
  z-index: 2;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
}

.page-home .cover-eyebrow {
  color: var(--gold);
  border-bottom-color: rgba(227, 180, 72, 0.55);
}

.page-home .cover-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 1.08;
  letter-spacing: 0.005em;
  margin: 14px 0 20px;
  color: var(--paper);
}

.page-home .cover-title em {
  font-style: normal;
  color: var(--green);
  box-shadow: inset 0 -0.16em 0 rgba(155, 197, 61, 0.24);
}

.page-home .cover-lede {
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(246, 242, 233, 0.82);
  margin-bottom: 26px;
}

.page-home .cover-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-home .cover-media .media-frame {
  border: 1px solid rgba(216, 210, 196, 0.28);
}

.page-home .cover-media .media-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: rgba(246, 242, 233, 0.62);
}

.page-home .cover-index {
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(27, 11, 43, 0.62);
  border: 1px solid rgba(164, 111, 196, 0.42);
  backdrop-filter: blur(10px);
}

.page-home .cover-index-head {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--grape-lite);
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(164, 111, 196, 0.3);
  margin-bottom: 6px;
}

.page-home .cover-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .cover-index-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(216, 210, 196, 0.14);
  color: var(--paper);
  text-decoration: none;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.page-home .cover-index-link .index-no {
  color: var(--gold);
  font-size: 12px;
  flex: 0 0 auto;
}

.page-home .cover-index-link .index-label {
  font-size: 15px;
  line-height: 1.6;
}

.page-home .cover-index-link:hover,
.page-home .cover-index-link:focus-visible,
.page-home .cover-index-link.is-linked {
  color: var(--green);
  border-bottom-color: rgba(155, 197, 61, 0.55);
}

.page-home .cover-index-foot {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(246, 242, 233, 0.58);
}

@media (min-width: 960px) {
  .page-home .cover-grid {
    grid-template-columns: repeat(12, 1fr);
    column-gap: clamp(20px, 3vw, 40px);
    row-gap: 0;
  }

  .page-home .cover-copy {
    grid-column: 1 / 8;
    grid-row: 1 / 3;
    align-self: start;
    padding-right: 12px;
  }

  .page-home .cover-media {
    grid-column: 8 / 13;
    grid-row: 1 / 2;
  }

  .page-home .cover-index {
    grid-column: 7 / 13;
    grid-row: 2 / 3;
    margin-top: -64px;
    margin-left: -7%;
    z-index: 3;
  }

  .page-home .cover-title {
    max-width: 15ch;
  }
}

/* ---------- 生长路径 ---------- */
.page-home .path-map {
  position: relative;
}

.page-home .vine-svg {
  display: none;
  width: 100%;
  height: 96px;
  overflow: visible;
}

.page-home .vine-svg path {
  fill: none;
  stroke: var(--grape-lite);
  stroke-width: 1;
  stroke-dasharray: 2600;
  stroke-dashoffset: 2600;
  transition: stroke-dashoffset 0.9s ease;
}

.page-home .vine-svg.is-drawn path {
  stroke-dashoffset: 0;
}

.page-home .path--branches {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .branch-node {
  display: block;
  background: var(--paper);
  padding: clamp(22px, 3vw, 32px);
  text-decoration: none;
  color: var(--text);
  transition: background 0.18s ease;
}

.page-home .branch-node:hover,
.page-home .branch-node:focus-visible {
  background: var(--home-card);
}

.page-home .branch-no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--gold);
  padding: 4px 8px;
  margin-bottom: 14px;
  transition: background 0.18s ease, color 0.18s ease;
}

.page-home .branch-node.is-linked .branch-no {
  background: var(--green);
}

.page-home .branch-title {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 10px;
  color: var(--grape);
}

.page-home .branch-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--home-muted);
  margin-bottom: 16px;
}

.page-home .branch-go {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--green-deep);
  border-bottom: 1px solid var(--green-deep);
  padding-bottom: 2px;
}

@media (min-width: 860px) {
  .page-home .vine-svg {
    display: block;
  }

  .page-home .path--branches {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- 地区分组 ---------- */
.page-home .section--indigo {
  background: var(--indigo);
  color: var(--paper);
}

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

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

.page-home .regions-media .media-frame {
  border: 1px solid rgba(216, 210, 196, 0.26);
}

.page-home .regions-media .media-caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: rgba(246, 242, 233, 0.6);
}

.page-home .region-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
  gap: 1px;
  background: rgba(216, 210, 196, 0.24);
  border: 1px solid rgba(216, 210, 196, 0.24);
  margin: 0 0 20px;
  padding: 0;
}

.page-home .region-cell {
  background: rgba(30, 47, 77, 0.92);
  color: rgba(246, 242, 233, 0.82);
  font-size: 12px;
  letter-spacing: 0.06em;
  padding: 12px 6px;
  text-align: center;
  transition: background 0.16s ease, color 0.16s ease;
}

.page-home .region-cell:hover {
  background: var(--grape);
  color: var(--paper);
}

.page-home .region-cell--cross {
  color: var(--gold);
  border-top: 2px solid var(--gold);
}

.page-home .regions-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid rgba(216, 210, 196, 0.24);
}

.page-home .regions-note {
  flex: 1 1 320px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 242, 233, 0.72);
  margin: 0;
}

@media (min-width: 900px) {
  .page-home .regions-grid {
    grid-template-columns: 3fr 8fr;
    align-items: start;
  }

  .page-home .region-grid {
    grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  }
}

/* ---------- 场景矩阵 ---------- */
.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: rgba(246, 242, 233, 0.72);
  backdrop-filter: blur(8px);
  margin-bottom: 22px;
}

.page-home .filter-btn {
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0.05em;
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.page-home .filter-btn:hover {
  border-color: var(--green-deep);
}

.page-home .filter-btn[aria-pressed="true"] {
  background: var(--grape);
  border-color: var(--grape);
  color: var(--paper);
}

.page-home .filter-status {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--home-muted);
  margin: 0 0 0 auto;
}

.page-home .scene-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .scene-card {
  background: var(--home-card);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-home .scene-card.is-switching {
  opacity: 0.4;
}

.page-home .scene-no {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-shadow: 0 0 0 transparent;
}

.page-home .scene-title {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--grape);
  margin: 0;
}

.page-home .scene-text {
  font-size: 14px;
  line-height: 1.8;
  color: var(--home-muted);
  margin: 0;
  flex: 1 1 auto;
}

.page-home .scene-card .tag {
  align-self: flex-start;
  margin-top: 4px;
}

.page-home .scene-media {
  margin: -20px -20px 6px;
}

.page-home .scene-card--lead {
  background: var(--paper);
  border-left: 3px solid var(--grape);
}

@media (min-width: 640px) {
  .page-home .scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-home .scene-card--lead {
    grid-column: span 2;
  }
}

@media (min-width: 1060px) {
  .page-home .scene-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-home .scene-card--lead {
    grid-column: span 2;
    grid-row: span 2;
  }
}

/* ---------- 时间线 ---------- */
.page-home .timeline {
  position: relative;
  overflow: hidden;
}

.page-home .timeline-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  filter: grayscale(1);
  pointer-events: none;
}

.page-home .timeline-shell {
  position: relative;
  z-index: 1;
}

.page-home .tl-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  border-top: 1px solid rgba(216, 210, 196, 0.24);
}

.page-home .tl-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(216, 210, 196, 0.18);
  position: relative;
}

.page-home .tl-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 36px;
  height: 2px;
  background: var(--gold);
}

.page-home .tl-year {
  font-size: clamp(1.35rem, 2.6vw, 1.9rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-home .tl-title {
  font-family: var(--serif);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 6px;
}

.page-home .tl-text {
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(246, 242, 233, 0.74);
  margin: 0;
  max-width: 58ch;
}

@media (min-width: 760px) {
  .page-home .tl-item {
    grid-template-columns: 160px 1fr;
    gap: 0 32px;
    align-items: start;
  }

  .page-home .tl-year {
    padding-top: 2px;
  }
}

.page-home .tl-more {
  border: 1px solid rgba(216, 210, 196, 0.28);
  padding: 0 18px;
  background: rgba(27, 11, 43, 0.5);
}

.page-home .tl-more .detail-summary {
  cursor: pointer;
  padding: 16px 0;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--grape-lite);
}

.page-home .tl-more .detail-body {
  padding-bottom: 18px;
}

.page-home .tl-minor {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .tl-minor li {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 242, 233, 0.76);
}

.page-home .tl-minor .mono {
  color: var(--green);
  margin-right: 10px;
}

.page-home .timeline-link {
  margin: 28px 0 0;
}

/* ---------- 三步口径 ---------- */
.page-home .path--steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
}

.page-home .step-node {
  position: relative;
  padding: 0 0 0 58px;
  border-left: 1px solid var(--line);
  padding-left: 34px;
}

.page-home .step-node::before {
  content: attr(data-step);
  position: absolute;
  left: -1px;
  top: 0;
  transform: translateX(-50%);
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: var(--grape);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
  border: 1px solid var(--grape);
}

.page-home .step-node {
  padding-top: 4px;
  padding-bottom: 6px;
  padding-left: 62px;
}

.page-home .step-title {
  font-family: var(--serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px;
}

.page-home .step-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--home-muted);
  margin: 0 0 14px;
  max-width: 46ch;
}

.page-home .step-link {
  font-size: 14px;
  color: var(--green-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--green-deep);
  padding-bottom: 2px;
}

.page-home .step-link:hover,
.page-home .step-link:focus-visible {
  color: var(--grape);
  border-bottom-color: var(--grape);
}

@media (min-width: 960px) {
  .page-home .path--steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-top: 1px solid var(--line);
    padding-top: 44px;
    position: relative;
  }

  .page-home .step-node {
    border-left: none;
    border-right: 1px solid var(--line);
    padding: 0 30px 0 0;
    margin-right: 30px;
  }

  .page-home .step-node:last-child {
    border-right: none;
    margin-right: 0;
  }

  .page-home .step-node::before {
    left: 0;
    top: -64px;
    transform: none;
  }
}

.page-home .steps-foot {
  margin-top: clamp(30px, 4vw, 48px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
  justify-content: space-between;
}

.page-home .steps-note {
  flex: 1 1 320px;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--home-muted);
}

/* ---------- 页尾细线路径 ---------- */
.page-home .vine-tail {
  margin-top: clamp(40px, 6vw, 72px);
  padding: 0 var(--gutter);
  max-width: var(--shell);
  margin-left: auto;
  margin-right: auto;
}

.page-home .vine-tail svg {
  display: block;
  width: 100%;
  height: 44px;
}

.page-home .vine-tail path {
  fill: none;
  stroke: var(--grape-lite);
  stroke-width: 1;
  opacity: 0.7;
}

/* ---------- 动效降级 ---------- */
.page-home [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.page-home [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-home [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-home .vine-svg path {
    stroke-dashoffset: 0;
    transition: none;
  }

  .page-home .cover-index-link,
  .page-home .branch-node,
  .page-home .region-cell,
  .page-home .filter-btn {
    transition: none;
  }
}