.page-home {
  --home-shadow: 0 6px 0 0 var(--c-carbon), 0 7px 0 0 var(--c-line);
  --home-shadow-hover: 0 10px 0 0 var(--c-carbon), 0 11px 0 0 var(--c-line);
  padding-bottom: 4rem;
}

.page-home .home-crumb {
  padding-top: 1.25rem;
}

.page-home [data-reveal] {
  transition: transform 0.5s ease;
}

@media (prefers-reduced-motion: no-preference) {
  .js .page-home [data-reveal]:not(.is-in) {
    transform: translateY(16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home [data-reveal],
  .page-home .cluster-card,
  .page-home .rail-item {
    transition: none;
  }
  .page-home .cluster-card:hover,
  .page-home .cluster-card:focus-visible {
    transform: none;
  }
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  display: grid;
  gap: 2.5rem;
  padding: 1.75rem 0 3rem;
  border-bottom: 1px solid var(--c-line);
}

.page-home .hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.35rem, 8.5vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--c-white);
  margin: 0.85rem 0 1.15rem;
}

.page-home .hero-lead {
  max-width: 46ch;
  margin: 0;
  color: var(--c-body);
  font-size: var(--fs-16);
  line-height: 1.75;
}

.page-home .step-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1.85rem;
}

.page-home .step-arrow {
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  line-height: 1;
  color: var(--c-cyan);
}

.page-home .hero-foot {
  margin: 1.1rem 0 0;
  font-size: var(--fs-14);
  color: var(--c-body);
}

.page-home .hero-foot a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 195, 0.42);
}

.page-home .hero-foot a:hover,
.page-home .hero-foot a:focus-visible {
  color: var(--c-mist);
  border-bottom-color: var(--c-mist);
}

/* 右侧窄栏 */
.page-home .hero-rail {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  min-width: 0;
}

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

.page-home .rail-title {
  margin: 0;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--c-line);
  font-family: var(--font-serif);
  font-size: var(--fs-14);
  letter-spacing: 0.06em;
  color: var(--c-paper);
}

.page-home .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  background: var(--c-carbon);
  border: 1px solid var(--c-line);
}

.page-home .rail-list > li + li {
  border-top: 1px solid var(--c-line);
}

.page-home .rail-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.2rem 0.7rem;
  padding: 0.72rem 0.9rem;
  color: inherit;
  text-decoration: none;
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.page-home .rail-item:hover,
.page-home .rail-item:focus-visible {
  background: #1b3a32;
  box-shadow: inset 3px 0 0 var(--c-cyan);
}

.page-home .rail-round {
  font-size: var(--fs-12);
  color: var(--c-cyan);
  letter-spacing: 0.03em;
}

.page-home .rail-cluster {
  font-size: var(--fs-14);
  color: var(--c-white);
}

.page-home .rail-note {
  grid-column: 1 / -1;
  font-size: var(--fs-12);
  line-height: 1.65;
  color: var(--c-body);
}

/* ---------- 数据带 ---------- */
.page-home .home-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 2.5rem 0 0;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  box-shadow: var(--home-shadow);
}

.page-home .home-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 0;
  padding: 1.1rem 1rem 1.25rem;
  background: var(--c-void);
}

.page-home .home-stats .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 5vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-home .home-stats .stat-value::after {
  content: "";
  display: block;
  height: 5px;
  margin-top: 0.55rem;
  background-image: repeating-linear-gradient(90deg, var(--c-cyan) 0 2px, transparent 2px 9px);
  opacity: 0.55;
}

.page-home .home-stats .stat-label {
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--c-body);
}

/* ---------- 图片 ---------- */
.page-home .media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-pine);
}

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

.page-home .home-wide-media {
  margin: 2.5rem 0 0;
}

.page-home .home-strip-media {
  margin: 0 0 0.5rem;
}

/* ---------- 通用区块标题 ---------- */
.page-home .section-title {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4.2vw, 2.125rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-home .section-note {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-body);
}

/* ---------- 两步路径 ---------- */
.page-home .home-path {
  padding-top: 3rem;
}

.page-home .path-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.75rem;
}

.page-home .path-panel {
  min-width: 0;
  padding: 1.25rem 1rem;
  background: var(--c-carbon);
  border: 1px solid var(--c-line);
}

.page-home .path-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-home .path-node {
  fill: var(--c-pine);
  stroke: var(--c-line);
  stroke-width: 1;
}

.page-home .path-node--accent {
  fill: #1d3b33;
  stroke: var(--c-mist);
}

.page-home .path-num {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  fill: var(--c-cyan);
}

.page-home .path-label {
  font-family: var(--font-body);
  font-size: 15px;
  fill: var(--c-white);
}

.page-home .path-wire {
  stroke: var(--c-line);
  stroke-width: 2;
  stroke-dasharray: 6 5;
}

.page-home .path-arrow {
  fill: var(--c-cyan);
}

.page-home .path-steps {
  list-style: none;
  margin: 1.15rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-home .path-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--c-body);
}

.page-home .path-steps .mono {
  color: var(--c-cyan);
}

.page-home .path-cta {
  margin: 1.35rem 0 0;
}

.page-home .path-media {
  margin: 0;
  align-self: start;
}

/* ---------- 栏目棋盘 ---------- */
.page-home .home-clusters {
  padding-top: 3rem;
}

.page-home .cluster-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem;
  margin-top: 1.75rem;
  padding-bottom: 0.9rem;
}

.page-home .cluster-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-width: 0;
  padding: 1.15rem 1.15rem 1.3rem;
  background: var(--c-pine);
  border: 1px solid var(--c-line);
  color: var(--c-white);
  text-decoration: none;
  box-shadow: var(--home-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-home .cluster-card:hover,
.page-home .cluster-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--c-mist);
  box-shadow: var(--home-shadow-hover);
}

.page-home .cluster-count {
  font-size: var(--fs-12);
  letter-spacing: 0.03em;
  color: var(--c-cyan);
}

.page-home .cluster-name {
  font-family: var(--font-display);
  font-size: var(--fs-20);
  font-weight: 800;
  line-height: 1.2;
}

.page-home .cluster-card--hero .cluster-name {
  font-size: var(--fs-26);
}

.page-home .cluster-desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--c-body);
}

.page-home .cluster-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: auto;
  padding-top: 0.75rem;
}

.page-home .cluster-card--index {
  background: var(--c-carbon);
}

/* ---------- 改版对照 ---------- */
.page-home .home-changes {
  padding-top: 3rem;
}

.page-home .compare {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.page-home .compare-col {
  min-width: 0;
  padding: 1.35rem;
  border: 1px solid var(--c-line);
}

.page-home .compare-col--old {
  background: var(--c-carbon);
}

.page-home .compare-col--new {
  background: var(--c-pine);
  box-shadow: var(--home-shadow);
}

.page-home .compare-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  margin-bottom: 0.95rem;
}

.page-home .compare-num {
  font-size: var(--fs-12);
  color: var(--c-body);
}

.page-home .tag-diff {
  color: var(--c-diff);
  border: 1px solid var(--c-diff);
  background: transparent;
}

.page-home .compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-home .compare-list li {
  padding-left: 0.85rem;
  border-left: 1px solid var(--c-line);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--c-body);
}

.page-home .compare-col--new .compare-list li {
  border-left-color: var(--c-cyan);
}

.page-home .changes-cta {
  margin: 1.5rem 0 0;
}

/* ---------- 订阅 ---------- */
.page-home .home-subscribe {
  padding-top: 3rem;
}

.page-home .subscribe-media {
  margin: 0 0 1.75rem;
}

.page-home .subscribe-body {
  display: grid;
  gap: 1.75rem;
}

.page-home .subscribe-list {
  list-style: none;
  margin: 1.1rem 0 1.6rem;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-home .subscribe-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-body);
}

.page-home .subscribe-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  background: var(--c-cyan);
}

.page-home .subscribe-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-home .subscribe-aside {
  min-width: 0;
  padding: 1.25rem;
  background: var(--c-pine);
  border: 1px solid var(--c-line);
}

.page-home .aside-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-serif);
  font-size: var(--fs-16);
  color: var(--c-white);
}

.page-home .aside-text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-body);
}

.page-home .aside-actions {
  margin: 1.1rem 0 0;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-home .home-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .home-stats .stat:last-child {
    grid-column: span 3;
  }
}

@media (min-width: 900px) {
  .page-home .home-hero {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0;
    padding-top: 3.25rem;
  }

  .page-home .hero-main {
    grid-column: 1 / span 7;
    padding-right: clamp(1rem, 3vw, 2.5rem);
  }

  .page-home .hero-rail {
    grid-column: 9 / -1;
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
    padding-left: 1.1rem;
    border-left: 1px solid var(--c-line);
  }

  .page-home .home-stats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-home .home-stats .stat:last-child {
    grid-column: auto;
  }

  .page-home .path-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 2.25rem;
    align-items: start;
  }

  .page-home .compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.6rem;
  }

  .page-home .subscribe-body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 2.5rem;
    align-items: start;
  }
}

@media (min-width: 760px) {
  .page-home .cluster-board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.35rem;
    padding-bottom: 1.4rem;
  }

  .page-home .cluster-card--hero {
    grid-column: span 2;
    grid-row: span 2;
  }

  .page-home .cluster-card--wide {
    grid-column: span 2;
  }

  .page-home .cluster-card:nth-child(even) {
    margin-top: 1.15rem;
  }
}
<<<END>>>