.page-home {
  --home-line: 1px;
  background-color: var(--ink-800);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-home *,
.page-home *::before,
.page-home *::after {
  box-sizing: border-box;
}

.page-home [id] {
  scroll-margin-top: 24px;
}

.page-home .home-wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ---------- 通用排版 ---------- */
.page-home .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-home .home-kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-home .home-eyebrow {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .home-eyebrow--ink {
  color: var(--cinnabar);
}

.page-home .home-h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 4.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-home .home-h2--ink {
  color: var(--charcoal);
}

.page-home .home-body {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-home .home-body--ink {
  color: rgba(28, 35, 43, 0.86);
}

.page-home .home-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid var(--gold);
  background-color: transparent;
  color: var(--gold);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

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

.page-home .home-btn:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: 3px;
}

.page-home .home-btn:active {
  transform: translateY(0);
}

.page-home .home-btn--solid {
  background-color: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper-light);
}

.page-home .home-btn--solid:hover {
  background-color: var(--cinnabar-bright);
  border-color: var(--cinnabar-bright);
}

.page-home .home-btn--ink {
  border-color: var(--charcoal);
  color: var(--charcoal);
}

.page-home .home-btn--ink:hover {
  background-color: rgba(28, 35, 43, 0.08);
}

/* ---------- 刊头 ---------- */
.page-home .home-masthead {
  position: relative;
  overflow: hidden;
  background-color: var(--ink-900);
  border-bottom: 1px solid var(--gold-line);
}

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

.page-home .home-masthead__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.65);
  opacity: 0.4;
}

.page-home .home-masthead__media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(7, 17, 29, 0.86) 0%, rgba(13, 26, 43, 0.94) 100%);
}

.page-home .home-masthead__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image: repeating-linear-gradient(
      0deg,
      var(--gold-line-soft) 0 1px,
      transparent 1px 24px
    ),
    repeating-linear-gradient(90deg, var(--gold-line-soft) 0 1px, transparent 1px 24px);
  opacity: 0.5;
}

.page-home .home-masthead__inner {
  position: relative;
  z-index: 3;
  padding-block: 52px 40px;
}

.page-home .home-title {
  margin: 0 0 18px;
  max-width: 16em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 7vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--paper-light);
}

.page-home .home-lede {
  margin: 0 0 26px;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-home .home-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--gold-line-soft);
  font-size: 13px;
  color: var(--celadon);
}

.page-home .home-facts__item {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.page-home .home-facts__num {
  font-size: 17px;
  color: var(--gold);
}

/* ---------- 入口索引 ---------- */
.page-home .home-index {
  padding-block: 48px 8px;
}

.page-home .home-index__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-home .home-rail {
  border: 1px solid var(--gold-line);
  background-color: rgba(27, 49, 73, 0.55);
}

.page-home .home-rail__title {
  margin: 0;
  padding: 16px 16px 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--paper-light);
}

.page-home .home-rail__note {
  margin: 0;
  padding: 0 16px 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--celadon);
}

.page-home .home-rail__figure {
  margin: 0;
  border-block: 1px solid var(--gold-line-soft);
}

.page-home .home-rail__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.72);
  opacity: 0.82;
}

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

.page-home .home-tag {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  font-size: 14px;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--mist);
  border-bottom: 1px solid var(--gold-line-soft);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease),
    padding-left var(--dur) var(--ease);
}

.page-home .home-tag:last-child {
  border-bottom: none;
}

.page-home .home-tag__num {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-home .home-tag:hover {
  background-color: var(--ink-700);
  color: var(--paper-light);
  padding-left: 22px;
}

.page-home .home-tag:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: -2px;
}

.page-home .home-rail__foot {
  margin: 0;
  padding: 14px 16px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--celadon);
  border-top: 1px solid var(--gold-line-soft);
}

/* ---------- 入口卡片 ---------- */
.page-home .home-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  align-content: start;
}

.page-home .home-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px;
  border: 1px solid var(--paper-line);
}

.page-home .home-card--paper {
  background-color: var(--paper);
  color: var(--charcoal);
}

.page-home .home-card--deep {
  background-color: var(--ink-700);
  color: var(--mist);
  border-color: var(--gold-line-soft);
}

.page-home .home-card__eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cinnabar);
}

.page-home .home-card--deep .home-card__eyebrow {
  color: var(--gold);
}

.page-home .home-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-home .home-card--paper .home-card__title {
  color: var(--charcoal);
}

.page-home .home-card--deep .home-card__title {
  color: var(--paper-light);
}

.page-home .home-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

.page-home .home-card--paper .home-card__text {
  color: rgba(28, 35, 43, 0.84);
}

.page-home .home-card--deep .home-card__text {
  color: var(--mist);
}

.page-home .home-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
  font-size: 13px;
  line-height: 1.7;
}

.page-home .home-card--paper .home-card__list {
  color: rgba(28, 35, 43, 0.78);
}

.page-home .home-card--deep .home-card__list {
  color: var(--celadon);
}

.page-home .home-card__list li {
  position: relative;
  padding-left: 14px;
}

.page-home .home-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 1px;
  background-color: var(--cinnabar);
}

.page-home .home-card--deep .home-card__list li::before {
  background-color: var(--gold);
}

.page-home .home-card__actions {
  margin: auto 0 0;
  padding-top: 6px;
}

/* ---------- 服务范围通栏 ---------- */
.page-home .home-scope {
  margin-top: 56px;
  padding-block: 44px;
  background-color: var(--ink-900);
  border-block: 1px solid var(--gold-line);
}

.page-home .home-scope__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

.page-home .home-scope__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 24px 0;
  padding: 0;
  background-color: var(--gold-line-soft);
  border: 1px solid var(--gold-line-soft);
}

.page-home .home-scope__stat {
  padding: 14px 12px;
  background-color: var(--ink-900);
}

.page-home .home-scope__stat dt {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--celadon);
}

.page-home .home-scope__stat dd {
  margin: 0;
  font-size: 22px;
  line-height: 1.1;
  color: var(--gold);
}

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

.page-home .home-scope__figure {
  margin: 0 0 16px;
  border: 1px solid var(--gold-line-soft);
}

.page-home .home-scope__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.5);
  opacity: 0.9;
}

.page-home .home-region {
  border: 1px solid var(--gold-line-soft);
  background-color: rgba(27, 49, 73, 0.45);
}

.page-home .home-region__summary {
  padding: 13px 16px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--paper-light);
  cursor: pointer;
  list-style: none;
}

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

.page-home .home-region__summary::before {
  content: "＋";
  margin-right: 10px;
  color: var(--gold);
}

.page-home .home-region[open] .home-region__summary::before {
  content: "－";
}

.page-home .home-region__summary:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: -2px;
}

.page-home .home-region__list {
  margin: 0;
  padding: 4px 16px 16px;
  list-style: none;
  display: grid;
  gap: 9px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .home-region__name {
  display: inline-block;
  min-width: 3em;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
}

/* ---------- 版本对照 ---------- */
.page-home .home-version {
  padding-block: 52px;
  background-color: var(--paper);
  color: var(--charcoal);
}

.page-home .home-version__head {
  max-width: 40em;
  margin-bottom: 28px;
}

.page-home .home-version__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.page-home .version-switch {
  position: relative;
  border: 1px solid var(--paper-line);
  background-color: var(--paper-light);
}

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

.page-home .version-switch__tabs {
  display: flex;
  border-bottom: 1px solid var(--paper-line);
}

.page-home .version-switch__tabs label {
  flex: 1 1 0;
  padding: 12px 10px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: rgba(28, 35, 43, 0.6);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-home .version-switch__tabs label:hover {
  color: var(--charcoal);
  background-color: rgba(28, 35, 43, 0.04);
}

.page-home #home-ver-360:checked ~ .version-switch__tabs label[for="home-ver-360"],
.page-home #home-ver-352:checked ~ .version-switch__tabs label[for="home-ver-352"] {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
  background-color: rgba(198, 63, 46, 0.06);
}

.page-home #home-ver-360:focus-visible ~ .version-switch__tabs label[for="home-ver-360"],
.page-home #home-ver-352:focus-visible ~ .version-switch__tabs label[for="home-ver-352"] {
  outline: 2px solid var(--cinnabar);
  outline-offset: -3px;
}

.page-home .version-panel {
  display: none;
  padding: 18px 16px 20px;
}

.page-home #home-ver-360:checked ~ .version-switch__panels .version-panel--360,
.page-home #home-ver-352:checked ~ .version-switch__panels .version-panel--352 {
  display: block;
}

.page-home .version-diff {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background-color: var(--paper-line);
}

.page-home .version-diff__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 11px 12px;
  background-color: var(--paper-light);
}

.page-home .version-diff__key {
  font-size: 13px;
  color: rgba(28, 35, 43, 0.78);
}

.page-home .version-diff__val {
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--charcoal);
}

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

.page-home .home-version__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 20 / 13;
  object-fit: cover;
  filter: saturate(0.7);
}

.page-home .home-version__cap {
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.65;
  color: rgba(28, 35, 43, 0.7);
  border-top: 1px solid var(--paper-line);
}

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

/* ---------- 三步动线 ---------- */
.page-home .home-steps {
  padding-block: 52px;
}

.page-home .home-steps__head {
  max-width: 38em;
  margin-bottom: 28px;
}

.page-home .home-steps__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background-color: var(--gold-line-soft);
  border: 1px solid var(--gold-line-soft);
}

.page-home .home-step {
  padding: 22px 20px;
  background-color: var(--ink-800);
}

.page-home .home-step__num {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .home-step__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--paper-light);
}

.page-home .home-step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--celadon);
}

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

/* ---------- 联络与更新 ---------- */
.page-home .home-service {
  padding-block: 48px 64px;
  background-color: var(--ink-900);
  border-top: 1px solid var(--gold-line);
}

.page-home .home-service__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

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

.page-home .home-service__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  align-self: start;
  background-color: var(--gold-line-soft);
  border: 1px solid var(--gold-line-soft);
}

.page-home .home-service__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background-color: var(--ink-900);
}

.page-home .home-service__label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--celadon);
}

.page-home .home-service__value {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper-light);
  word-break: break-word;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-home .home-scope__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 900px) {
  .page-home .home-masthead__inner {
    padding-block: 72px 52px;
  }

  .page-home .home-index {
    padding-block: 64px 12px;
  }

  .page-home .home-index__grid {
    grid-template-columns: 262px minmax(0, 1fr);
    gap: 32px;
  }

  .page-home .home-rail {
    position: sticky;
    top: 24px;
    align-self: start;
  }

  .page-home .home-cards {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 20px;
  }

  .page-home .home-card {
    padding: 26px 24px;
  }

  .page-home .home-card--wide {
    grid-column: span 7;
  }

  .page-home .home-card--narrow {
    grid-column: span 5;
  }

  .page-home .home-scope {
    margin-top: 72px;
    padding-block: 60px;
  }

  .page-home .home-scope__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
  }

  .page-home .home-version {
    padding-block: 68px;
  }

  .page-home .home-version__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 28px;
  }

  .page-home .home-steps {
    padding-block: 68px;
  }

  .page-home .home-service {
    padding-block: 60px 80px;
  }

  .page-home .home-service__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 48px;
  }
}

@media (min-width: 1180px) {
  .page-home .home-index__grid {
    grid-template-columns: 288px minmax(0, 1fr);
    gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-btn,
  .page-home .home-tag,
  .page-home .version-switch__tabs label {
    transition: none;
  }

  .page-home .home-btn:hover,
  .page-home .home-tag:hover {
    transform: none;
  }
}