.page-home {
  --home-rail: 196px;
  overflow-x: hidden;
}

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

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(18px, 2.6vw, 30px);
  overflow: hidden;
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(42, 63, 107, 0.55) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(42, 63, 107, 0.3) 0 1px, transparent 1px 88px),
    radial-gradient(120% 80% at 78% 12%, rgba(56, 232, 255, 0.13), transparent 62%),
    radial-gradient(90% 70% at 10% 0%, rgba(255, 61, 154, 0.08), transparent 60%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 62%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 0%, #000 62%, transparent 100%);
}

.page-home .hero__inner {
  position: relative;
}

.page-home .hero__crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(18px, 3vw, 32px);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-home .hero__crumb span:first-child {
  color: var(--cyan-soft);
}

.page-home .hero__sep {
  color: var(--line);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 44px);
  align-items: start;
}

.page-home .hero__copy h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ice);
  max-width: 15em;
}

.page-home .hero__lead {
  margin: 0 0 clamp(22px, 3vw, 30px);
  max-width: 34em;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-home .ver {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 24px);
  padding: clamp(14px, 2vw, 20px) clamp(16px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: linear-gradient(100deg, rgba(20, 38, 77, 0.92), rgba(14, 27, 58, 0.55));
  margin-bottom: clamp(20px, 2.6vw, 28px);
}

.page-home .ver__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(58px, 13vw, 112px);
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(56, 232, 255, 0.35);
}

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

.page-home .ver__tag {
  display: inline-block;
  padding: 4px 10px;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  border: 1px solid rgba(255, 181, 71, 0.55);
  background: rgba(255, 181, 71, 0.08);
  white-space: nowrap;
}

.page-home .ver__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 22em;
}

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

.page-home .hero__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--deep);
}

.page-home .hero__figure img {
  width: 100%;
}

.page-home .chapter-rail {
  margin-top: clamp(26px, 4vw, 46px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-home .chapter-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.page-home .chapter-rail__list li {
  background: var(--space);
}

.page-home .chapter-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ice);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .chapter-rail__list a .mono {
  font-size: 11px;
  color: var(--cyan);
  flex: none;
}

.page-home .chapter-rail__list a:hover,
.page-home .chapter-rail__list a:focus-visible {
  color: var(--cyan-soft);
  background: var(--cabin);
}

/* ---------- 布局与轨道索引 ---------- */
.page-home .layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

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

.page-home .rail {
  display: none;
}

.page-home .rail__title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-home .rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 14px;
  border-left: 1px solid var(--line);
}

.page-home .rail__list li + li {
  margin-top: 2px;
}

.page-home .rail__link {
  display: flex;
  gap: 8px;
  padding: 6px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-home .rail__link .mono {
  font-size: 11px;
  color: var(--line);
  transition: color var(--dur) var(--ease);
}

.page-home .rail__link:hover,
.page-home .rail__link:focus-visible,
.page-home .rail__link[aria-current="true"] {
  color: var(--cyan);
}

.page-home .rail__link:hover .mono,
.page-home .rail__link:focus-visible .mono,
.page-home .rail__link[aria-current="true"] .mono {
  color: var(--cyan);
}

/* ---------- 章节通用 ---------- */
.page-home .section {
  padding: clamp(34px, 5vw, 68px) 0;
  border-top: 1px solid var(--line);
}

.page-home .section:first-child {
  border-top: 0;
}

.page-home .section__head {
  margin-bottom: clamp(22px, 3vw, 36px);
  max-width: 46em;
}

.page-home .section__num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-home .section__head h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ice);
}

.page-home .section__lead {
  margin: 0;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 变更说明 ---------- */
.page-home .change {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 32px);
  align-items: start;
}

.page-home .change__list {
  border-top: 1px solid var(--line);
}

.page-home .drop {
  border-bottom: 1px solid var(--line);
}

.page-home .drop summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 2px;
  cursor: pointer;
  list-style: none;
  color: var(--ice);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.4;
}

.page-home .drop summary::-webkit-details-marker {
  display: none;
}

.page-home .drop__no {
  font-size: 12px;
  color: var(--cyan);
  flex: none;
  padding-top: 2px;
}

.page-home .drop__title {
  flex: 1 1 auto;
  min-width: 0;
}

.page-home .drop__hint {
  flex: none;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--mist);
  font-size: 14px;
  line-height: 1;
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .drop[open] .drop__hint {
  transform: rotate(45deg);
  color: var(--magenta);
  border-color: rgba(255, 61, 154, 0.6);
}

.page-home .drop summary:hover .drop__hint,
.page-home .drop summary:focus-visible .drop__hint {
  border-color: var(--cyan);
  color: var(--cyan);
}

.page-home .drop__body {
  padding: 0 0 18px 34px;
}

.page-home .drop__body p {
  margin: 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
}

.page-home .change__figure {
  margin: 0;
  border: 1px solid var(--line);
}

.page-home .change__figure img {
  width: 100%;
}

/* ---------- 三条路径 ---------- */
.page-home .fork {
  display: none;
  width: 100%;
  height: 72px;
  margin-bottom: -6px;
}

.page-home .paths {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .path {
  display: block;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--space);
  color: var(--ice);
  text-decoration: none;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .path__no {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 9px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  border: 1px solid rgba(56, 232, 255, 0.45);
}

.page-home .path__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 23px);
  letter-spacing: -0.01em;
}

.page-home .path__text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .path__peek {
  margin: 0 0 18px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--gray, var(--mist));
  color: var(--mist);
  opacity: 1;
}

.page-home .path__more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--cyan);
  border-bottom: 1px solid rgba(56, 232, 255, 0.4);
  padding-bottom: 2px;
}

.page-home .path:hover,
.page-home .path:focus-visible {
  background: var(--cabin);
  transform: translateY(-2px);
}

.page-home .path:hover .path__more,
.page-home .path:focus-visible .path__more {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 产品线与标签 ---------- */
.page-home .map {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  align-items: start;
}

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

.page-home .line-item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .line-item__no {
  font-size: 12px;
  color: var(--cyan);
  padding-top: 3px;
}

.page-home .line-item h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--ice);
}

.page-home .line-item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-home .map__figure {
  margin: 0;
  border: 1px solid var(--line);
}

.page-home .map__figure img {
  width: 100%;
}

.page-home .tags {
  margin-top: clamp(24px, 3.4vw, 40px);
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(20, 38, 77, 0.6), rgba(7, 13, 31, 0.9));
}

.page-home .tags__label {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-home .tags__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-home .tags__row .tag {
  text-decoration: none;
}

.page-home .tags__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
  max-width: 44em;
}

.page-home .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(24px, 3.4vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .stat {
  background: var(--space);
  padding: clamp(16px, 2.2vw, 24px);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-home .stat__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 4.4vw, 38px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-home .stat__plus {
  font-size: 0.52em;
  color: var(--magenta);
  margin-left: 2px;
}

.page-home .stat__label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 服务对照节奏 ---------- */
.page-home .cadence {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .cadence__step {
  background: var(--space);
  padding: clamp(18px, 2.4vw, 26px);
  border-top: 2px solid transparent;
}

.page-home .cadence__step--first {
  border-top-color: var(--cyan);
}

.page-home .cadence__no {
  display: block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-home .cadence__step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--ice);
}

.page-home .cadence__step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .cadence__foot {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-home .cadence__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 232, 255, 0.4);
}

.page-home .cadence__foot a:hover,
.page-home .cadence__foot a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* ---------- 桌面端 ---------- */
.page-home .desktop {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-home .desktop__figure {
  margin: 0;
  border: 1px solid var(--line);
}

.page-home .desktop__figure img {
  width: 100%;
}

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

.page-home .desktop__points li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .desktop__points li:first-child {
  border-top: 1px solid var(--line);
}

.page-home .desktop__points .mono {
  font-size: 11px;
  color: var(--cyan);
  padding-top: 4px;
}

.page-home .desktop__points a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 232, 255, 0.35);
}

.page-home .desktop__points a:hover,
.page-home .desktop__points a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.page-home .closing {
  margin-top: clamp(24px, 3.4vw, 40px);
  padding: clamp(20px, 2.8vw, 30px);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--magenta);
  background: linear-gradient(100deg, rgba(255, 61, 154, 0.08), rgba(7, 13, 31, 0.9) 55%);
}

.page-home .closing__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ice);
  max-width: 40em;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .chapter-rail__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .cadence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .closing {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: clamp(28px, 3.6vw, 56px);
  }

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

  .page-home .chapter-rail__list a {
    padding: 16px 16px 18px;
    flex-direction: column;
    gap: 6px;
    font-size: 14px;
  }

  .page-home .change {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
  }

  .page-home .fork {
    display: block;
  }

  .page-home .paths {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .path {
    padding: clamp(22px, 2.4vw, 32px);
  }

  .page-home .path__peek {
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  }

  .page-home .path:hover .path__peek,
  .page-home .path:focus-visible .path__peek,
  .page-home .path:focus-within .path__peek {
    opacity: 1;
    transform: translateY(0);
  }

  .page-home .map {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }

  .page-home .lines {
    border-bottom: 1px solid var(--line);
  }

  .page-home .line-item {
    padding: 16px 0;
  }

  .page-home .desktop {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  }
}

@media (min-width: 1100px) {
  .page-home .layout {
    grid-template-columns: minmax(0, 1fr) var(--home-rail);
  }

  .page-home .rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .path,
  .page-home .path__peek,
  .page-home .drop__hint {
    transition: none;
  }

  .page-home .path:hover,
  .page-home .path:focus-visible {
    transform: none;
  }
}
<<<PAGE_CSS_DONE>>>

.page-home {
  --gray: currentColor;
}