.page-home {
  --home-rail: 208px;
  display: block;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏封面 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--night);
  color: var(--white);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: radial-gradient(rgba(251, 252, 253, 0.1) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.55;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: -90px;
  right: -120px;
  width: 380px;
  height: 380px;
  background: linear-gradient(140deg, rgba(215, 38, 61, 0.3), rgba(215, 38, 61, 0) 65%);
  transform: rotate(20deg);
}

.page-home .home-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-block: 32px 42px;
}

.page-home .home-hero__copy {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-home .home-hero__ctx {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--on-dark-dim);
}

.page-home .home-hero__sep {
  display: inline-block;
  width: 14px;
  height: 1px;
  background: var(--red);
}

.page-home .home-hero__ver {
  color: var(--red);
  letter-spacing: 0.08em;
}

.page-home .home-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7.4vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--white);
  text-wrap: balance;
}

.page-home .home-hero__lead {
  max-width: 44ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--on-dark);
}

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

.page-home .home-hero__actions .btn {
  min-height: 46px;
}

.page-home .home-hero__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 16px;
  margin: 6px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--hair-dark);
}

.page-home .home-hero__fact dt {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--on-dark-dim);
}

.page-home .home-hero__fact dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-home .home-hero__visual {
  position: relative;
  margin: 0;
  min-width: 0;
  clip-path: var(--cut);
  box-shadow: inset 0 0 0 1px var(--hair-dark);
}

.page-home .home-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-home .home-hero__badge {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 6px 10px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--white);
  background: rgba(14, 23, 38, 0.86);
  box-shadow: inset 0 0 0 1px var(--hair-dark);
  clip-path: var(--cut-sm);
}

/* ---------- 通用区块 ---------- */
.page-home .home-block {
  padding-block: 54px;
}

.page-home .home-block .section-head {
  margin-bottom: 30px;
}

.page-home .home-block .section-head .lead {
  max-width: 62ch;
}

/* ---------- 三条线索 ---------- */
.page-home .home-lines__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-home .home-line {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 24px;
  background: var(--white);
  clip-path: var(--cut);
  box-shadow: inset 0 0 0 1px var(--rule-soft);
}

.page-home .home-line::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  width: 44px;
  height: 3px;
  background: var(--red);
}

.page-home .home-line__num {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-home .home-line h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .home-line p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--charcoal);
}

.page-home .home-line .home-line__scene {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--rule);
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray);
}

.page-home .home-line__link {
  align-self: flex-start;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

/* ---------- 两步定位 ---------- */
.page-home .home-steps {
  background: var(--white);
  border-block: 1px solid var(--rule-soft);
}

.page-home .home-steps__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: center;
}

.page-home .home-steps__copy {
  min-width: 0;
}

.page-home .home-steps__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 22px;
  counter-reset: step;
}

.page-home .home-steps__list li {
  position: relative;
  padding-left: 54px;
}

.page-home .home-steps__list li::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  left: 0;
  top: 2px;
  padding-left: 9px;
  border-left: 3px solid var(--red);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.2;
  color: var(--red);
  letter-spacing: 0.06em;
}

.page-home .home-steps__list h3 {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}

.page-home .home-steps__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--charcoal);
}

.page-home .home-steps__list .home-steps__check {
  margin-top: 8px;
  padding: 6px 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--cyan-soft);
  border-left: 2px solid var(--cyan);
}

.page-home .home-steps__figure {
  margin: 0;
  min-width: 0;
}

.page-home .home-steps__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  clip-path: var(--cut);
  background: var(--paper);
}

.page-home .home-steps__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray);
}

/* ---------- 双栏对照 ---------- */
.page-home .home-compare__panel {
  padding: 22px 20px 26px;
  background: var(--night);
  color: var(--white);
  clip-path: var(--cut);
}

.page-home .home-compare__art {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  margin-bottom: 22px;
  clip-path: var(--cut-sm);
}

.page-home .home-compare__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-home .home-compare__col {
  min-width: 0;
}

.page-home .home-compare__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--on-dark-dim);
}

.page-home .home-compare__item + .home-compare__item {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--hair-dark);
}

.page-home .home-compare__item h3 {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--white);
}

.page-home .home-compare__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--on-dark);
}

.page-home .home-compare__steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 16px;
  counter-reset: cmp;
}

.page-home .home-compare__steps li {
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--on-dark);
}

.page-home .home-compare__steps li::before {
  counter-increment: cmp;
  content: counter(cmp);
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 2px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
}

.page-home .home-compare__steps strong {
  color: var(--white);
  font-weight: 600;
}

.page-home .home-compare__link {
  display: inline-block;
  font-size: 14px;
  color: var(--white);
  text-decoration: none;
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

/* ---------- 版本时间轴 ---------- */
.page-home .home-timeline__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-home .home-timeline__rail {
  list-style: none;
  margin: 0;
  padding: 0 0 0 18px;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--rule);
}

.page-home .home-timeline__node {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  padding: 9px 0;
  font-size: 12px;
  color: var(--gray);
}

.page-home .home-timeline__node::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 15px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gray);
}

.page-home .home-timeline__node.is-active {
  color: var(--ink);
}

.page-home .home-timeline__node.is-active::before {
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(215, 38, 61, 0.14);
}

.page-home .home-timeline__when {
  font-size: 12px;
  color: var(--gray);
}

.page-home .home-timeline__cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-home .home-timeline__card {
  padding: 22px 22px 20px;
  background: var(--white);
  clip-path: var(--cut-sm);
  box-shadow: inset 0 0 0 1px var(--rule-soft);
}

.page-home .home-timeline__meta {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--red);
}

.page-home .home-timeline__card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}

.page-home .home-timeline__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--charcoal);
}

.page-home .home-timeline__card .home-timeline__state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin: 14px 0 0;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--paper);
  font-size: 12px;
  line-height: 1.4;
  color: var(--charcoal);
}

/* ---------- 目录地图 ---------- */
.page-home .home-map__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-home .home-map__figure {
  margin: 0;
  min-width: 0;
}

.page-home .home-map__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  clip-path: var(--cut);
  background: var(--white);
}

.page-home .home-map__levels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--rule);
}

.page-home .home-map__levels li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px solid var(--rule);
}

.page-home .home-map__lv {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-home .home-map__levels h3 {
  margin: 0 0 4px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--ink);
}

.page-home .home-map__levels p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--charcoal);
}

.page-home .home-map__more {
  margin-top: 26px;
}

/* ---------- 支持入口 ---------- */
.page-home .home-support__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding: 30px 24px;
  background: var(--night);
  color: var(--white);
  clip-path: var(--cut);
}

.page-home .home-support__copy {
  min-width: 0;
}

.page-home .home-support__copy .section-head__num {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-home .home-support__panel h2 {
  margin: 0 0 12px;
  color: var(--white);
}

.page-home .home-support__panel p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--on-dark);
}

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

.page-home .home-support__actions .btn {
  min-height: 46px;
}

/* ---------- 宽屏 ---------- */
@media (min-width: 760px) {
  .page-home .home-lines__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

@media (min-width: 900px) {
  .page-home .home-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 42%);
    align-items: center;
    gap: 52px;
    padding-block: 64px 72px;
  }

  .page-home .home-hero__visual img {
    aspect-ratio: 4 / 3;
  }

  .page-home .home-block {
    padding-block: 86px;
  }

  .page-home .home-block .section-head {
    margin-bottom: 38px;
  }

  .page-home .home-steps__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 52px;
  }

  .page-home .home-compare__panel {
    padding: 34px 36px 38px;
  }

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

  .page-home .home-compare__col--path {
    margin-left: 36px;
    padding-left: 36px;
    border-left: 1px solid var(--hair-dark);
  }

  .page-home .home-timeline__grid {
    grid-template-columns: var(--home-rail) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-home .home-timeline__rail {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-home .home-map__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 44px;
    align-items: center;
  }

  .page-home .home-support__panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 36px;
    padding: 42px 44px;
  }
}

@media (min-width: 1180px) {
  .page-home .home-timeline__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}
<<<END>>>