.page-home {
  --home-gap: clamp(1.5rem, 4vw, 2.5rem);
  background: var(--ink-800);
  color: var(--paper);
  overflow-x: hidden;
}

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

/* ---------- 侧轨章节锚点 ---------- */
.page-home .home-rail {
  display: none;
}

@media (min-width: 1360px) {
  .page-home .home-rail {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    position: fixed;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 30;
  }

  .page-home .home-rail__link {
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--mist);
    outline-offset: 4px;
  }

  .page-home .home-rail__link::before {
    content: "";
    width: 5px;
    height: 5px;
    background: var(--mist);
    transition: background 0.25s var(--ease), transform 0.25s var(--ease);
  }

  .page-home .home-rail__text {
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    line-height: 1;
    margin-top: 0.3rem;
  }

  .page-home .home-rail__link:hover {
    color: var(--paper-hi);
  }

  .page-home .home-rail__link:hover::before {
    background: var(--gold);
  }

  .page-home .home-rail__link[aria-current="true"] {
    color: var(--gold);
  }

  .page-home .home-rail__link[aria-current="true"]::before {
    background: var(--gold);
    transform: scale(1.5);
  }
}

/* ---------- 封面首屏 ---------- */
.page-home .cover {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.75rem, 5vw, 3rem) 0 clamp(2.25rem, 6vw, 4rem);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 62%, var(--ink-800) 100%);
}

.page-home .cover::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 85% at 12% 18%, #000 18%, transparent 76%);
  mask-image: radial-gradient(120% 85% at 12% 18%, #000 18%, transparent 76%);
}

.page-home .cover__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .cover__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.36;
  filter: saturate(0.72) contrast(1.06);
}

.page-home .cover__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(90% 70% at 78% 18%, rgba(201, 162, 75, 0.16), transparent 62%),
    linear-gradient(180deg, rgba(7, 17, 28, 0.62) 0%, rgba(11, 26, 42, 0.9) 62%, var(--ink-800) 100%);
}

.page-home .cover__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: var(--home-gap);
}

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

.page-home .cover .crumb {
  margin-bottom: 0.9rem;
}

.page-home .cover__eyebrow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .cover__eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--cinnabar);
}

.page-home .cover__title {
  margin: 0.75rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 9vw, 5.2rem);
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--paper-hi);
}

.page-home .cover__title-hl {
  color: var(--gold);
}

.page-home .cover__lede {
  margin: 1.15rem 0 0;
  max-width: 34em;
  font-size: clamp(1rem, 1.5vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(242, 232, 213, 0.86);
}

.page-home .cover__steps {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
}

.page-home .cover__step {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding-left: 0.6rem;
  border-left: 1px solid var(--line-gold);
  font-size: 0.85rem;
  color: var(--sand);
}

.page-home .cover__stepnum {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
}

.page-home .cover__index {
  margin-top: 0.5rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line-gold);
}

.page-home .cover__indexhead {
  margin: 0 0 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--mist);
}

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

.page-home .cover__indexitem {
  border-bottom: 1px solid var(--line-soft);
  transition: transform 0.35s var(--ease);
}

.page-home .cover__indexlink {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.55rem 0.15rem;
  text-decoration: none;
  color: var(--paper);
  font-size: 0.95rem;
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-home .cover__indexnum {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold);
  min-width: 1.7em;
}

.page-home .cover__indexname {
  flex: 1;
}

.page-home .cover__indexarrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--mist);
  transition: color 0.25s var(--ease);
}

.page-home .cover__indexlink:hover,
.page-home .cover__indexlink:focus-visible {
  color: var(--gold);
  padding-left: 0.55rem;
}

.page-home .cover__indexlink:hover .cover__indexarrow {
  color: var(--jade);
}

@media (min-width: 600px) {
  .page-home .cover__indexitem:nth-child(2) { transform: translateX(8px); }
  .page-home .cover__indexitem:nth-child(3) { transform: translateX(16px); }
  .page-home .cover__indexitem:nth-child(4) { transform: translateX(24px); }
  .page-home .cover__indexitem:nth-child(5) { transform: translateX(32px); }
  .page-home .cover__indexitem:nth-child(6) { transform: translateX(40px); }
}

@media (min-width: 900px) {
  .page-home .cover__inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-home .cover__title {
    margin-left: -0.045em;
  }
}

.page-home .cover__foot {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-home .cover__foot a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 1px;
}

.page-home .cover__foot a:hover {
  color: var(--gold);
}

/* ---------- 章节通用 ---------- */
.page-home .home-section {
  position: relative;
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--line);
}

.page-home .home-section:last-of-type {
  border-bottom: 0;
}

.page-home .home-head {
  max-width: 46rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-home .home-head__title {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 3.6vw, 2.45rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--paper-hi);
}

.page-home .home-head__lede {
  margin: 0.8rem 0 0;
  max-width: 42em;
  font-size: 0.975rem;
  line-height: 1.85;
  color: rgba(242, 232, 213, 0.78);
}

/* ---------- 入口分流 ---------- */
.page-home .home-entries__grid {
  display: grid;
  gap: var(--home-gap);
  align-items: start;
}

.page-home .home-tabs {
  min-width: 0;
  border: 1px solid var(--line);
  background: rgba(18, 49, 77, 0.3);
}

.page-home .home-tabs__radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-home .home-tabs__bar {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line);
}

.page-home .home-tabs__tab {
  flex: 1 1 7rem;
  text-align: center;
  padding: 0.75rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--mist);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-home .home-tabs__tab:hover {
  color: var(--paper-hi);
}

.page-home #dev-desk:checked ~ .home-tabs__bar .home-tabs__tab[for="dev-desk"],
.page-home #dev-pad:checked ~ .home-tabs__bar .home-tabs__tab[for="dev-pad"],
.page-home #dev-mobile:checked ~ .home-tabs__bar .home-tabs__tab[for="dev-mobile"] {
  color: var(--gold);
  border-bottom-color: var(--cinnabar);
  background: rgba(201, 162, 75, 0.08);
}

.page-home #dev-desk:focus-visible ~ .home-tabs__bar .home-tabs__tab[for="dev-desk"],
.page-home #dev-pad:focus-visible ~ .home-tabs__bar .home-tabs__tab[for="dev-pad"],
.page-home #dev-mobile:focus-visible ~ .home-tabs__bar .home-tabs__tab[for="dev-mobile"] {
  outline: 1px solid var(--jade);
  outline-offset: -3px;
}

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

.page-home #dev-desk:checked ~ .home-tabs__panels .home-tabs__panel--desk,
.page-home #dev-pad:checked ~ .home-tabs__panels .home-tabs__panel--pad,
.page-home #dev-mobile:checked ~ .home-tabs__panels .home-tabs__panel--mobile {
  display: block;
}

.page-home .home-tabs__panels .table-wrap {
  border: 0;
}

.page-home .home-tabs__panels .table {
  font-size: 0.9rem;
}

.page-home .home-tabs__note {
  margin: 0;
  padding: 0.7rem 1rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--mist);
}

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

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

.page-home .home-entries__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

@media (min-width: 900px) {
  .page-home .home-entries__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.58fr);
    gap: clamp(1.75rem, 3vw, 2.5rem);
  }

  .page-home .home-entries__figure {
    transform: translateY(1.75rem);
  }
}

/* ---------- 专区服务 ---------- */
.page-home .home-zones__grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.page-home .home-zone {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1rem, 2vw, 1.35rem);
  border-top: 2px solid var(--gold);
}

.page-home .home-zone:nth-child(1) { border-top-color: var(--gold); }
.page-home .home-zone:nth-child(2) { border-top-color: var(--cinnabar); }
.page-home .home-zone:nth-child(3) { border-top-color: var(--jade); }
.page-home .home-zone:nth-child(4) { border-top-color: var(--gold); }
.page-home .home-zone:nth-child(5) { border-top-color: var(--cinnabar); }

.page-home .home-zone .card__title {
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.4;
}

.page-home .home-zone .card__body {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-home .home-zone__meta {
  margin: auto 0 0;
  padding-top: 0.7rem;
  border-top: 1px solid rgba(34, 48, 63, 0.16);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--ink-text-soft);
}

.page-home .home-zones__strip {
  margin: clamp(1.25rem, 3vw, 2rem) 0 0;
}

@media (min-width: 640px) {
  .page-home .home-zones__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-home .home-zones__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-home .home-zone:nth-child(1),
  .page-home .home-zone:nth-child(2) {
    grid-column: span 3;
  }

  .page-home .home-zone:nth-child(3),
  .page-home .home-zone:nth-child(4),
  .page-home .home-zone:nth-child(5) {
    grid-column: span 2;
  }
}

/* ---------- 版本与排期 ---------- */
.page-home .home-versions__grid {
  display: grid;
  gap: var(--home-gap);
  align-items: start;
}

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

.page-home .home-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.1rem;
  border-left: 1px solid var(--line-gold);
}

.page-home .home-timeline__item {
  position: relative;
  padding-bottom: 1.35rem;
}

.page-home .home-timeline__item::before {
  content: "";
  position: absolute;
  left: calc(-1.1rem - 3.5px);
  top: 0.45rem;
  width: 6px;
  height: 6px;
  background: var(--gold);
}

.page-home .home-timeline__item--major::before {
  width: 8px;
  height: 8px;
  left: calc(-1.1rem - 4.5px);
  background: var(--cinnabar);
}

.page-home .home-timeline__ver {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-home .home-timeline__title {
  margin: 0.15rem 0 0.3rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper-hi);
}

.page-home .home-timeline__desc {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(242, 232, 213, 0.75);
}

.page-home .home-timeline__when {
  margin: 0.35rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-home .home-schedule {
  margin-top: 0.5rem;
  padding: 1.1rem 1.15rem;
  background: rgba(18, 49, 77, 0.4);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cinnabar);
}

.page-home .home-schedule__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .home-schedule__list {
  list-style: none;
  margin: 0.7rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-home .home-schedule__item {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 0.86rem;
  color: rgba(242, 232, 213, 0.82);
}

.page-home .home-schedule__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-home .home-schedule__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gold);
  white-space: nowrap;
}

.page-home .home-versions__more {
  margin: 1.15rem 0 0;
  font-size: 0.88rem;
}

.page-home .home-versions__more a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-home .home-versions__more a:hover {
  color: var(--paper-hi);
  border-bottom-color: var(--jade);
}

@media (min-width: 900px) {
  .page-home .home-versions__grid {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    gap: clamp(1.75rem, 3.5vw, 3rem);
  }

  .page-home .home-versions__figure {
    position: sticky;
    top: 1.5rem;
  }
}

/* ---------- 首次访问三步 ---------- */
.page-home .home-start__grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.page-home .home-step {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.1rem, 2.5vw, 1.5rem);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(18, 49, 77, 0.55) 0%, rgba(7, 17, 28, 0.18) 100%);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-home .home-step:hover {
  border-color: var(--line-gold);
  transform: translateY(-2px);
}

.page-home .home-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 2.3rem;
  line-height: 1;
  color: rgba(201, 162, 75, 0.38);
  font-variant-numeric: tabular-nums;
}

.page-home .home-step__title {
  margin: 0.45rem 0 0.45rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--paper-hi);
}

.page-home .home-step__desc {
  margin: 0 0 0.95rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(242, 232, 213, 0.75);
}

.page-home .home-step__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: 0.84rem;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
  padding-bottom: 2px;
}

.page-home .home-step__link:hover {
  color: var(--paper-hi);
  border-bottom-color: var(--jade);
}

@media (min-width: 780px) {
  .page-home .home-start__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.15rem;
  }
}

/* ---------- 服务规模与联系 ---------- */
.page-home .home-trust__grid {
  display: grid;
  gap: var(--home-gap);
  align-items: start;
}

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

.page-home .home-stats {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-home .home-stat {
  padding-top: 0.6rem;
  border-top: 1px solid var(--line);
}

.page-home .home-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  line-height: 1.1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-home .home-stat__label {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.82rem;
  line-height: 1.65;
  color: rgba(242, 232, 213, 0.7);
}

.page-home .home-trust__note {
  margin: 1.15rem 0 0;
  padding-left: 0.8rem;
  border-left: 2px solid var(--jade);
  font-size: 0.86rem;
  line-height: 1.8;
  color: rgba(242, 232, 213, 0.72);
}

.page-home .home-contact {
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
}

.page-home .home-contact .card__title {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
}

.page-home .home-contact__row {
  display: grid;
  grid-template-columns: 4rem minmax(0, 1fr);
  gap: 0.6rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(34, 48, 63, 0.14);
  font-size: 0.9rem;
}

.page-home .home-contact__key {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--ink-text-soft);
  padding-top: 0.15rem;
}

.page-home .home-contact__val {
  color: var(--ink-text);
  line-height: 1.6;
  word-break: break-word;
}

.page-home .home-contact__note {
  margin: 0.9rem 0 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--ink-text-soft);
}

.page-home .home-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.page-home .home-top {
  margin: clamp(2rem, 4vw, 3rem) 0 0;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-home .home-top a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 2px;
}

.page-home .home-top a:hover {
  color: var(--gold);
  border-bottom-color: var(--line-gold);
}

@media (min-width: 560px) {
  .page-home .home-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-trust__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(1.75rem, 3.5vw, 3rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .cover__indexitem,
  .page-home .cover__indexlink,
  .page-home .home-step,
  .page-home .home-rail__link::before {
    transition: none;
  }

  .page-home .home-step:hover {
    transform: none;
  }
}