.page-home {
  background: var(--pearl);
  color: var(--ink);
  overflow-x: clip;
}

.page-home .h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.6vw, 2.4rem);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--deep);
  margin: 0;
}

.page-home .lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 12px 0 0;
}

.page-home .section {
  padding: 56px 0;
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding: 16px 0 0;
  background: var(--pearl);
}

.page-home .hero__split {
  display: grid;
  grid-template-columns: 1fr;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-2);
}

.page-home .hero__copy {
  position: relative;
  background: var(--deep);
  color: var(--pearl);
  padding: 28px 20px 40px;
  overflow: hidden;
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  opacity: .3;
  pointer-events: none;
}

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

.page-home .hero__context {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: rgba(253, 248, 240, .7);
}

.page-home .hero__context .mono {
  color: var(--coral-soft);
}

.page-home .hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.75rem, 7.4vw, 3.8rem);
  line-height: 1.04;
  letter-spacing: -.03em;
  margin: 14px 0 0;
  color: var(--pearl);
}

.page-home .hero__accent {
  color: var(--coral-soft);
}

.page-home .hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(253, 248, 240, .84);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .hero__visual {
  background: var(--cream);
  padding: 28px 20px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-home .index-visual__label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--slate);
}

.page-home .index-visual__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.page-home .index-visual__cell {
  display: grid;
  place-items: center;
  min-height: 48px;
  border-radius: var(--r-sm);
  background: rgba(11, 59, 92, .09);
  color: var(--deep);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
}

.page-home .index-visual__cell:nth-child(3n+2) {
  background: rgba(232, 90, 60, .14);
  color: var(--coral);
}

.page-home .index-visual__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 分类 ---------- */
.page-home .cats {
  scroll-margin-top: 84px;
}

.page-home .cats__head {
  display: grid;
  gap: 16px;
  margin-bottom: 24px;
}

.page-home .cats__intro {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-home .cats__visual {
  margin: 0 0 24px;
}

.page-home .cats__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  object-fit: cover;
  border-radius: var(--r-lg);
}

.page-home .cats__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .cat-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px 18px;
  border-radius: var(--r-md);
  background: var(--pearl);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-home .cat-card:hover,
.page-home .cat-card:focus-within {
  transform: translateY(-2px);
  border-color: var(--coral);
  box-shadow: 0 18px 34px -26px rgba(11, 59, 92, .55);
}

.page-home .cat-card__num {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--slate);
  transition: color .2s var(--ease);
}

.page-home .cat-card:hover .cat-card__num {
  color: var(--coral);
}

.page-home .cat-card__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--deep);
}

.page-home .cat-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-home .cat-card__tag {
  align-self: flex-start;
  margin-top: 8px;
  padding: 3px 10px;
  border-radius: var(--pill);
  background: rgba(47, 143, 107, .13);
  color: var(--palm);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  transition: background .2s var(--ease), color .2s var(--ease);
}

.page-home .cat-card:hover .cat-card__tag {
  background: var(--coral-soft);
  color: var(--ink);
}

/* ---------- 两端入口 ---------- */
.page-home .devices {
  background: var(--mist);
}

.page-home .devices__head {
  margin-bottom: 28px;
}

.page-home .devices__stack {
  display: grid;
  gap: 20px;
}

.page-home .band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  padding: 24px 20px;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
}

.page-home .band--deep {
  background: var(--deep);
  color: var(--pearl);
  border-color: transparent;
}

.page-home .band--cream {
  background: var(--cream);
}

.page-home .band__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4vw, 1.7rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.page-home .band--deep .band__title {
  color: var(--pearl);
}

.page-home .band--cream .band__title {
  color: var(--deep);
}

.page-home .band__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

.page-home .band--deep .band__text {
  color: rgba(253, 248, 240, .82);
}

.page-home .band--cream .band__text {
  color: var(--ink-soft);
}

.page-home .band__list {
  list-style: none;
  margin: 18px 0 24px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .band__list li {
  padding: 6px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--line-light);
  font-size: 13px;
  color: var(--pearl);
}

.page-home .band__figure {
  margin: 0;
}

.page-home .band__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
}

.page-home .steps {
  list-style: none;
  margin: 18px 0 24px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .steps__item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-home .steps__num {
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: var(--pill);
  display: grid;
  place-items: center;
  background: var(--coral);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
}

.page-home .steps__label {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

/* ---------- 联系路径 ---------- */
.page-home .reach__grid {
  display: grid;
  gap: 32px;
}

.page-home .reach__figure {
  margin: 26px 0 0;
}

.page-home .reach__figure img {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  border-radius: var(--r-lg);
}

.page-home .reach__paths {
  display: grid;
  gap: 16px;
}

.page-home .path-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 22px 18px;
  border-radius: var(--r-md);
  background: var(--cream);
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
}

.page-home .path-step__num {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--pill);
  background: var(--deep);
  color: var(--pearl);
  font-size: 13px;
  font-weight: 700;
}

.page-home .path-step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--deep);
}

.page-home .path-step__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-home .reach__line {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  word-break: break-word;
}

.page-home .reach__key {
  display: inline-block;
  min-width: 66px;
  margin-right: 10px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-home .reach__note {
  margin: 0;
  padding: 14px 16px;
  border-radius: var(--r-md);
  background: var(--mist);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 更新节奏 ---------- */
.page-home .cadence {
  background: var(--cream);
}

.page-home .cadence__head {
  margin-bottom: 28px;
}

.page-home .cadence__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .cadence__node {
  display: grid;
  gap: 6px;
  padding: 20px 18px;
  border-radius: var(--r-md);
  background: var(--pearl);
  border: 1px solid var(--line);
  border-top: 3px solid var(--coral);
}

.page-home .cadence__when {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-home .cadence__fig {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--deep);
}

.page-home .cadence__desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.page-home .cadence__facts {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-home .fact {
  padding-left: 14px;
  border-left: 2px solid var(--coral-soft);
}

.page-home .fact__fig {
  display: block;
  font-size: 21px;
  font-weight: 700;
  color: var(--deep);
}

.page-home .fact p {
  margin: 5px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-home .milestones {
  margin: 28px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2;
  letter-spacing: .02em;
  color: var(--slate);
}

.page-home .home-cta {
  margin-top: 30px;
  padding: 24px 20px;
  border-radius: var(--r-lg);
  background: var(--deep);
  color: var(--pearl);
  display: grid;
  gap: 16px;
}

.page-home .home-cta__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: rgba(253, 248, 240, .9);
}

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

.page-home .home-cta .btn--ghost {
  border-color: rgba(253, 248, 240, .55);
  color: var(--pearl);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-home .cats__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 900px) {
  .page-home .section {
    padding: 80px 0;
  }

  .page-home .hero {
    padding: 24px 0 0;
  }

  .page-home .hero__split {
    grid-template-columns: 1.15fr .85fr;
  }

  .page-home .hero__copy {
    padding: 52px 46px 60px;
  }

  .page-home .hero__visual {
    padding: 52px 40px;
  }

  .page-home .hero__title {
    font-size: clamp(2.6rem, 4.4vw, 3.8rem);
  }

  .page-home .cats__head {
    grid-template-columns: 1fr 1fr;
    gap: 44px;
    align-items: end;
    margin-bottom: 32px;
  }

  .page-home .cats__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .page-home .band {
    grid-template-columns: 1.25fr .75fr;
    align-items: center;
    gap: 36px;
    padding: 38px 42px;
  }

  .page-home .band--cream {
    width: 88%;
    margin-left: auto;
    grid-template-columns: 1fr;
  }

  .page-home .reach__grid {
    grid-template-columns: .82fr 1.18fr;
    gap: 56px;
    align-items: start;
  }

  .page-home .cadence__track {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-home .cadence__facts {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .page-home .home-cta {
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 30px 38px;
  }
}

@media (min-width: 1100px) {
  .page-home .cats__visual img {
    aspect-ratio: 3.4 / 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .cat-card,
  .page-home .cat-card__num,
  .page-home .cat-card__tag {
    transition: none;
  }

  .page-home .cat-card:hover,
  .page-home .cat-card:focus-within {
    transform: none;
  }
}
<<<END>>>