.page-home {
  --home-sec-pad: clamp(44px, 7vw, 96px);
  --home-hair: rgba(245, 248, 250, 0.12);
  --home-hair-ink: rgba(22, 35, 46, 0.12);
  background: var(--canvas);
  color: var(--ink);
}

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

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  background: var(--deep);
  color: var(--canvas);
  padding: clamp(36px, 6vw, 76px) 0 clamp(40px, 6vw, 72px);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(245, 248, 250, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 248, 250, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
}

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

.page-home .hero__ghost {
  position: absolute;
  top: -8px;
  right: 8px;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-96);
  line-height: 1;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(245, 248, 250, 0.14);
  pointer-events: none;
  user-select: none;
}

.page-home .hero .eyebrow {
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-home .hero__title {
  margin: 0 0 16px;
  max-width: 16em;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-44);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--canvas);
}

.page-home .hero__lede {
  margin: 0;
  max-width: 40em;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: rgba(245, 248, 250, 0.78);
}

.page-home .hero__body {
  display: grid;
  gap: 26px;
  margin-top: clamp(24px, 4vw, 40px);
}

/* 章节索引 */
.page-home .toc__lead {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
  color: var(--index);
}

.page-home .toc__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-home .toc__item {
  flex: 0 0 auto;
}

.page-home .toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border-left: 2px solid transparent;
  color: rgba(245, 248, 250, 0.72);
  font-size: var(--fs-13);
  line-height: 1.4;
  text-decoration: none;
  transition: color 180ms var(--ease), background-color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .toc__num {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: var(--signal);
}

.page-home .toc__link:hover,
.page-home .toc__link:focus-visible {
  color: var(--canvas);
  background: var(--hold);
  border-left-color: var(--signal);
  outline: none;
}

/* 主干路径滑轨 */
.page-home .track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 6px;
}

.page-home .track__card {
  flex: 0 0 min(300px, 84%);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px 18px 22px;
  background: var(--hold);
  border: 1px solid var(--home-hair);
}

.page-home .track__card--on {
  border-color: rgba(255, 106, 43, 0.55);
  box-shadow: inset 4px 0 0 var(--signal);
}

.page-home .track__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-home .track__num {
  font-family: var(--font-display);
  font-size: var(--fs-34);
  line-height: 1;
  color: var(--signal);
}

.page-home .track__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-26);
  line-height: 1.25;
  color: var(--canvas);
}

.page-home .track__text {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.7;
  color: rgba(245, 248, 250, 0.74);
}

.page-home .track__card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-home .hero__figure {
  margin: 22px 0 0;
}

.page-home .hero__figure .figure__frame {
  aspect-ratio: 4 / 3;
  border: 1px solid var(--home-hair);
  background: var(--hold);
}

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

.page-home .hero__figure .figure__caption {
  color: var(--index);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
}

/* ---------- 通用分区 ---------- */
.page-home .sec {
  padding: var(--home-sec-pad) 0;
}

.page-home .sec--canvas {
  background: var(--canvas);
  color: var(--ink);
}

.page-home .sec--desk {
  background: var(--desk);
  color: var(--ink);
}

.page-home .sec--deep {
  background: var(--deep);
  color: var(--canvas);
}

.page-home .sec__head {
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-home .sec__title {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-34);
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.page-home .sec--deep .sec__title {
  color: var(--canvas);
}

.page-home .sec__aside p {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: rgba(22, 35, 46, 0.78);
}

.page-home .sec--deep .sec__aside p {
  color: rgba(245, 248, 250, 0.72);
}

.page-home .sec--deep .eyebrow {
  color: var(--cyan);
}

/* ---------- 01 路径 ---------- */
.page-home .path {
  display: grid;
  gap: 16px;
  padding: 22px 0 26px;
  border-top: 1px solid var(--home-hair-ink);
}

.page-home .path:last-child {
  border-bottom: 1px solid var(--home-hair-ink);
}

.page-home .path__head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.page-home .path__num {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: var(--fs-64);
  line-height: 0.85;
  color: var(--signal);
}

.page-home .path__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-20);
  line-height: 1.35;
}

.page-home .path__text {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: rgba(22, 35, 46, 0.82);
}

.page-home .path__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-hair-ink);
}

.page-home .path__li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--home-hair-ink);
  font-size: var(--fs-13);
  line-height: 1.6;
  color: rgba(22, 35, 46, 0.8);
}

.page-home .path__li-k {
  font-family: var(--font-mono);
  color: var(--ink-orange);
  letter-spacing: 0.04em;
}

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

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

.page-home .path__figure .figure__frame {
  aspect-ratio: 4 / 5;
  border: 1px solid var(--home-hair-ink);
  background: var(--hold);
}

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

.page-home .path__figure .figure__caption {
  font-size: var(--fs-13);
  color: rgba(22, 35, 46, 0.65);
}

/* ---------- 02 速度 ---------- */
.page-home .bars {
  display: grid;
  gap: 20px;
  padding: 22px 20px;
  background: var(--hold);
  border: 1px solid var(--home-hair);
}

.page-home .bars__row {
  display: grid;
  grid-template-columns: 56px 1fr 56px;
  gap: 12px;
  align-items: center;
}

.page-home .bars__label {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: var(--index);
}

.page-home .bars__track {
  display: block;
  height: 14px;
  background: rgba(245, 248, 250, 0.08);
}

.page-home .bars__fill {
  display: block;
  height: 100%;
}

.page-home .bars__fill--before {
  width: 100%;
  background: rgba(245, 248, 250, 0.34);
}

.page-home .bars__fill--after {
  width: 37.5%;
  background: var(--signal);
}

.page-home .bars__val {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: var(--canvas);
  text-align: right;
}

.page-home .speed__note {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: var(--index);
}

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

.page-home .speed__stat {
  padding-top: 14px;
  border-top: 1px solid var(--home-hair);
}

.page-home .speed__stat p {
  margin: 8px 0 0;
  font-size: var(--fs-17);
  line-height: 1.7;
  color: rgba(245, 248, 250, 0.72);
}

.page-home .speed__num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-44);
  line-height: 1;
  color: var(--cyan);
}

.page-home .speed__num em {
  margin-left: 4px;
  font-style: normal;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-20);
  color: var(--canvas);
}

/* ---------- 03 索引地图 ---------- */
.page-home .map__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--home-hair-ink);
}

.page-home .map__item {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--home-hair-ink);
}

.page-home .map__code {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: var(--ink-orange);
  padding-top: 4px;
}

.page-home .map__name {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-20);
}

.page-home .map__count {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: var(--fs-13);
  color: rgba(22, 35, 46, 0.6);
}

.page-home .map__desc {
  margin: 0;
  font-size: var(--fs-17);
  line-height: 1.7;
  color: rgba(22, 35, 46, 0.8);
}

.page-home .map__note {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  line-height: 1.7;
  color: rgba(22, 35, 46, 0.65);
}

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

.page-home .map__figure .figure__frame {
  aspect-ratio: 5 / 3;
  border: 1px solid var(--home-hair-ink);
  background: var(--deep);
}

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

.page-home .map__figure .figure__caption {
  font-size: var(--fs-13);
  color: rgba(22, 35, 46, 0.65);
}

/* ---------- 04 iOS ---------- */
.page-home .ios__lead {
  color: rgba(22, 35, 46, 0.78);
}

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

.page-home .ios__figure .figure__frame {
  aspect-ratio: 20 / 9;
  border: 1px solid var(--home-hair-ink);
  background: var(--deep);
}

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

.page-home .ios__figure .figure__caption {
  font-size: var(--fs-13);
  color: rgba(22, 35, 46, 0.65);
}

.page-home .ios__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 20px;
}

.page-home .ios__metaitem {
  padding: 6px 10px;
  border: 1px solid var(--home-hair-ink);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: rgba(22, 35, 46, 0.78);
  background: rgba(233, 228, 220, 0.5);
}

/* ---------- 05 团队 ---------- */
.page-home .team__note {
  margin: 14px 0 0;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: rgba(245, 248, 250, 0.74);
}

.page-home .team .btn {
  margin-top: 20px;
}

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

.page-home .team__stat {
  padding-top: 14px;
  border-top: 1px solid var(--home-hair);
}

.page-home .team__stat p {
  margin: 8px 0 0;
  font-size: var(--fs-13);
  line-height: 1.7;
  color: rgba(245, 248, 250, 0.68);
}

.page-home .team__num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-44);
  line-height: 1;
  color: var(--signal);
}

.page-home .team__num em {
  margin-left: 3px;
  font-style: normal;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-20);
  color: var(--canvas);
}

.page-home .team__fine {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  line-height: 1.7;
  color: var(--index);
}

/* ---------- 06 速答 ---------- */
.page-home .ask__more {
  margin: 26px 0 0;
}

/* ---------- 收尾 ---------- */
.page-home .home-cta {
  background: var(--canvas);
  border-top: 3px solid var(--signal);
  padding: clamp(30px, 5vw, 56px) 0 clamp(36px, 5vw, 60px);
}

.page-home .home-cta__title {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-26);
  line-height: 1.3;
}

.page-home .home-cta__text {
  margin: 0 0 20px;
  max-width: 44em;
  font-size: var(--fs-17);
  line-height: 1.75;
  color: rgba(22, 35, 46, 0.8);
}

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

/* ---------- 回到顶部 ---------- */
.page-home .home-top {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 20;
  padding: 8px 12px;
  background: var(--deep);
  border: 1px solid var(--home-hair);
  color: var(--canvas);
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  text-decoration: none;
}

.page-home .home-top:hover,
.page-home .home-top:focus-visible {
  background: var(--hold);
  border-color: var(--signal);
  outline: none;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-home .track__card {
    flex: 1 1 0;
    min-width: 0;
  }

  .page-home .track {
    overflow-x: visible;
  }

  .page-home .hero__title {
    font-size: var(--fs-64);
  }

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

  .page-home .sec__title {
    font-size: var(--fs-44);
  }
}

@media (min-width: 960px) {
  .page-home .hero__body {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-home .toc {
    position: sticky;
    top: 24px;
  }

  .page-home .toc__list {
    display: grid;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-home .toc__item {
    flex: initial;
  }

  .page-home .hero__figure {
    margin-top: 30px;
  }

  .page-home .path__figure,
  .page-home .map__figure {
    margin-top: 0;
  }

  .page-home .paths,
  .page-home .map {
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .toc__link,
  .page-home .home-top {
    transition: none;
  }
}
<<<END>>>