.page-home {
  --home-pad: clamp(38px, 6vw, 76px);
  --home-gap: clamp(20px, 3.4vw, 34px);
}

.page-home .breadcrumbs {
  margin-top: 18px;
}

.page-home .breadcrumbs__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--moss);
}

/* ---------- 首屏：目录封面 ---------- */
.page-home .hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
  padding: clamp(22px, 4vw, 44px) 0 clamp(36px, 5.5vw, 68px);
}

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

.page-home .hero__kicker {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--moss);
  margin: 0 0 clamp(14px, 2vw, 22px);
  padding-left: 12px;
  border-left: 3px solid var(--signal);
  line-height: 1.6;
}

.page-home .hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 8.4vw, 4.7rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 0 0 .18em;
  color: var(--ink);
}

.page-home .hero__dot {
  color: var(--signal);
  padding: 0 .06em;
}

.page-home .hero__hook {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.08rem, 2.4vw, 1.45rem);
  line-height: 1.5;
  color: var(--lake);
  margin: 0 0 14px;
}

.page-home .hero__lede {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--body-text);
  max-width: 36em;
  margin: 0;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: clamp(22px, 3.4vw, 36px) 0 0;
  padding-top: 18px;
  border-top: var(--hair);
}

.page-home .hero__stats dt {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--moss);
}

.page-home .hero__stats dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.4vw, 1.4rem);
  font-weight: 600;
  color: var(--lake);
}

.page-home .hero__index {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 300px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--lake);
  color: var(--ivory);
  border: var(--hard);
  box-shadow: var(--shadow-hard);
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .32;
  z-index: 0;
}

.page-home .hero__index::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(18, 60, 74, .3) 0%, rgba(18, 60, 74, .9) 68%);
  pointer-events: none;
}

.page-home .hero__index-body {
  position: relative;
  z-index: 2;
  width: 100%;
}

.page-home .hero__index-title {
  font-size: 11.5px;
  letter-spacing: .22em;
  color: var(--mist-light);
  margin: 0 0 14px;
}

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

.page-home .hero__index-item + .hero__index-item {
  border-top: 1px solid rgba(255, 253, 247, .22);
}

.page-home .hero__index-link {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  align-items: baseline;
  gap: 8px;
  padding: 11px 0;
  color: var(--ivory);
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  transition: color .18s ease, transform .18s ease;
}

.page-home .hero__index-num {
  font-size: 12px;
  color: var(--signal);
}

.page-home .hero__index-link:hover,
.page-home .hero__index-link:focus-visible {
  color: #FFC49E;
  transform: translateX(3px);
}

.page-home .hero__index-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 2px solid var(--signal);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist-light);
}

@media (min-width: 960px) {
  .page-home .hero {
    grid-template-columns: 46px minmax(0, 1fr) minmax(0, 396px);
    align-items: stretch;
  }

  .page-home .hero__mark {
    display: block;
    writing-mode: vertical-rl;
    font-size: 11px;
    letter-spacing: .3em;
    color: var(--moss);
    border-left: 2px solid var(--signal);
    padding-left: 14px;
    margin: 6px 0 0;
    line-height: 1.4;
    align-self: start;
  }

  .page-home .hero__index {
    min-height: 100%;
  }
}

/* ---------- 章节头 ---------- */
.page-home .home-scenes,
.page-home .home-upgrades,
.page-home .home-changelog,
.page-home .home-reach {
  padding: var(--home-pad) 0;
}

.page-home .band {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 16px;
  align-items: start;
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-home .band__num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .16em;
  line-height: 1;
  color: var(--signal);
  border: 2px solid var(--signal);
  padding: 7px 9px;
}

.page-home .band__num--light {
  color: var(--ivory);
  border-color: var(--signal);
}

.page-home .band__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  line-height: 1.28;
  letter-spacing: -.01em;
  color: var(--ink);
  margin: 0;
}

.page-home .band__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted-text);
  max-width: 48em;
}

@media (min-width: 860px) {
  .page-home .band--wide {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-home .band__action {
    justify-self: end;
  }
}

/* ---------- 场景卡 ---------- */
.page-home .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-home .scene {
  display: flex;
  flex-direction: column;
  background: var(--ivory);
  border: var(--hard);
  box-shadow: var(--shadow-soft);
  padding: clamp(18px, 3vw, 26px);
}

.page-home .scene--narrow {
  background: var(--mist-light);
  box-shadow: var(--shadow-hard);
}

.page-home .scene__tag {
  align-self: flex-start;
  margin-bottom: 12px;
}

.page-home .scene__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.08rem, 2.2vw, 1.3rem);
  line-height: 1.4;
  color: var(--ink);
  margin: 0;
}

.page-home .scene__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--body-text);
}

.page-home .scene__more {
  margin: auto 0 0;
  padding-top: 18px;
  font-size: 14px;
  font-weight: 700;
}

.page-home .scene__more a {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 2px solid var(--signal);
  padding-bottom: 2px;
}

.page-home .scene__more a:hover,
.page-home .scene__more a:focus-visible {
  color: var(--signal);
}

.page-home .scene__figure {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 2px solid var(--ink);
  margin-bottom: 16px;
}

@media (min-width: 860px) {
  .page-home .scene-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 22px;
  }

  .page-home .scene {
    grid-column: span 3;
  }

  .page-home .scene--wide {
    grid-column: span 4;
  }

  .page-home .scene--narrow {
    grid-column: span 2;
    margin-top: 38px;
  }

  .page-home .scene--media {
    grid-column: span 3;
  }
}

/* ---------- V3 与安卓端分段切换 ---------- */
.page-home .upgrade {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
}

.page-home .upgrade__intro .band__title {
  margin-top: 14px;
}

.page-home .upgrade__figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-home .upgrade__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 7;
  object-fit: cover;
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-soft);
}

.page-home .switch {
  position: relative;
  border: var(--hard);
  box-shadow: var(--shadow-hard);
  background: var(--ivory);
}

.page-home .switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-home .switch__tabs {
  display: flex;
  flex-wrap: wrap;
  background: var(--sand);
  border-bottom: var(--hard);
}

.page-home .switch__tab {
  flex: 1 1 0;
  min-width: 132px;
  text-align: center;
  padding: 14px 12px;
  font-weight: 700;
  font-size: 14.5px;
  color: var(--ink);
  cursor: pointer;
  border-right: 1px solid var(--line);
  transition: background .18s ease, color .18s ease;
}

.page-home .switch__tab:last-child {
  border-right: 0;
}

.page-home .switch__tab:hover {
  background: var(--mist);
}

.page-home .switch__panel {
  display: none;
  padding: clamp(18px, 3vw, 28px);
}

.page-home #home-switch-a:checked ~ .switch__tabs .switch__tab[for="home-switch-a"],
.page-home #home-switch-b:checked ~ .switch__tabs .switch__tab[for="home-switch-b"] {
  background: var(--lake);
  color: var(--ivory);
}

.page-home #home-switch-a:checked ~ .switch__panel--a,
.page-home #home-switch-b:checked ~ .switch__panel--b {
  display: block;
}

.page-home #home-switch-a:focus-visible ~ .switch__tabs,
.page-home #home-switch-b:focus-visible ~ .switch__tabs {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
}

.page-home .switch__lede {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-text);
}

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

.page-home .switch__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-top: var(--hair);
}

.page-home .switch__index {
  font-size: 12px;
  font-weight: 600;
  color: var(--signal);
  padding-top: 3px;
}

.page-home .switch__item strong {
  display: block;
  font-size: 15px;
  color: var(--ink);
  margin-bottom: 4px;
}

.page-home .switch__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted-text);
}

.page-home .switch__more {
  margin: 16px 0 0;
  font-size: 14px;
  font-weight: 700;
}

.page-home .switch__more a {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 2px solid var(--signal);
  padding-bottom: 2px;
}

.page-home .switch__more a:hover,
.page-home .switch__more a:focus-visible {
  color: var(--signal);
}

@media (min-width: 900px) {
  .page-home .upgrade {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    align-items: start;
  }
}

/* ---------- 更新索引 ---------- */
.page-home .log-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--hard);
}

.page-home .log-list__row {
  padding: 18px 0;
  border-bottom: var(--hair);
}

.page-home .log-list__num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--signal);
  margin-bottom: 7px;
}

.page-home .log-list__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  line-height: 1.5;
}

.page-home .log-list__title a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-home .log-list__title a:hover,
.page-home .log-list__title a:focus-visible {
  color: var(--lake);
  border-bottom-color: var(--signal);
}

.page-home .log-list__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted-text);
}

.page-home .log-list__tag {
  margin-top: 12px;
}

@media (min-width: 780px) {
  .page-home .log-list__row {
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr) 120px;
    align-items: center;
    gap: 24px;
    padding: 20px 0;
  }

  .page-home .log-list__num {
    margin-bottom: 0;
    font-size: 13px;
  }

  .page-home .log-list__tag {
    margin-top: 0;
    justify-self: end;
  }
}

/* ---------- 服务区域与联系 ---------- */
.page-home .reach__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
}

.page-home .reach__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.4vw, 2.1rem);
  line-height: 1.3;
  color: var(--ivory);
  margin: 16px 0 0;
}

.page-home .reach__lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist-light);
  max-width: 34em;
}

.page-home .reach__points {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-home .reach__points li {
  border-left: 3px solid var(--signal);
  padding-left: 14px;
}

.page-home .reach__points strong {
  display: block;
  font-size: 15px;
  color: var(--ivory);
  margin-bottom: 5px;
}

.page-home .reach__points span {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist-light);
}

.page-home .reach__contacts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .reach__link {
  color: var(--mist-light);
  font-size: 13.5px;
  text-decoration: none;
  border-bottom: 1px solid var(--mist-light);
  padding-bottom: 2px;
}

.page-home .reach__link:hover,
.page-home .reach__link:focus-visible {
  color: var(--ivory);
  border-bottom-color: var(--signal);
}

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

.page-home .reach__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 25 / 16;
  object-fit: cover;
  border: 2px solid var(--mist-light);
  box-shadow: var(--shadow-soft);
}

.page-home .reach__figure .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist-light);
}

.page-home .reach__meta {
  display: grid;
  gap: 10px;
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: 20px;
  border-top: 1px solid rgba(255, 253, 247, .28);
}

.page-home .reach__meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 0;
  align-items: baseline;
}

.page-home .reach__meta-key {
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--signal);
  min-width: 40px;
}

.page-home .reach__meta-value {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ivory);
  overflow-wrap: anywhere;
}

.page-home .reach__legal {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--mist-light);
}

.page-home .reach__legal a {
  color: var(--ivory);
  text-decoration: none;
  border-bottom: 1px solid var(--mist-light);
}

.page-home .reach__legal a:hover,
.page-home .reach__legal a:focus-visible {
  border-bottom-color: var(--signal);
}

@media (min-width: 900px) {
  .page-home .reach__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-home .reach__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-home .reach__meta-row {
    display: block;
  }

  .page-home .reach__meta-key {
    display: block;
    margin-bottom: 4px;
  }
}
<<<END>>>