.page-home {
  --home-sec-gap: 56px;
  --home-radius: var(--radius-soft);
  background: var(--paper);
  color: var(--text-ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  overflow-x: hidden;
}

.page-home .median-link {
  color: var(--navy-link);
}

.page-home .inline-link {
  color: var(--navy-link);
  text-decoration: none;
  border-bottom: 1px solid var(--sand-gold);
  padding-bottom: 1px;
}

.page-home .inline-link:hover {
  color: var(--ink-navy);
  border-bottom-color: var(--ink-navy);
}

.page-home .inline-link--ink {
  color: var(--sand-light);
  border-bottom-color: var(--sand-gold);
}

.page-home .inline-link--ink:hover {
  color: #fff;
  border-bottom-color: #fff;
}

/* ---------- 按钮补强 ---------- */
.page-home .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 15px;
  letter-spacing: 0.04em;
  line-height: 1.4;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 160ms var(--ease), background-color 160ms var(--ease),
    color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .btn:hover {
  transform: translateY(-2px);
}

.page-home .btn--solid {
  background: var(--ink-navy);
  color: #fff;
}

.page-home .btn--solid:hover {
  background: var(--navy-link);
}

.page-home .btn--ghost {
  border-color: var(--ink-navy);
  color: var(--ink-navy);
  background: transparent;
}

.page-home .btn--ghost:hover {
  background: var(--sand-light);
}

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

/* ---------- 章节头部 ---------- */
.page-home .sec-head {
  margin-bottom: 34px;
  max-width: 62ch;
}

.page-home .sec-head__kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--navy-link);
}

.page-home .sec-head__kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--sand-gold);
}

.page-home .sec-head__title {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 24px;
  line-height: 1.42;
  letter-spacing: 0.02em;
  color: var(--ink-navy);
}

.page-home .sec-head__note {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-home .sec-head--ink .sec-head__kicker {
  color: var(--sand-gold);
}

.page-home .sec-head--ink .sec-head__title {
  color: #fff;
}

.page-home .sec-head--ink .sec-head__note {
  color: rgba(250, 247, 240, 0.78);
}

/* ---------- 首屏框景 ---------- */
.page-home .hero {
  position: relative;
  padding: 28px 0 60px;
  background-image:
    radial-gradient(circle at 14% 6%, rgba(200, 162, 92, 0.12), transparent 44%),
    repeating-linear-gradient(0deg, rgba(27, 42, 91, 0.035) 0 1px, transparent 1px 28px);
  background-color: var(--paper);
}

.page-home .hero__frame {
  position: relative;
  padding: 36px 20px 32px;
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
  background: linear-gradient(180deg, #FFFDF8 0%, var(--paper) 62%);
  box-shadow: var(--shadow-lift);
}

.page-home .hero__frame::before,
.page-home .hero__frame::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--sand-gold) 0 1px, transparent 1px 14px);
  opacity: 0.6;
  pointer-events: none;
}

.page-home .hero__frame::before {
  top: 11px;
}

.page-home .hero__frame::after {
  bottom: 11px;
}

.page-home .hero__grid {
  display: grid;
  gap: 26px;
}

.page-home .hero__aside {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.page-home .hero__tag {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  padding-left: 9px;
  border-left: 2px solid var(--sand-gold);
  line-height: 1.5;
}

.page-home .hero__title {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 30px;
  line-height: 1.32;
  letter-spacing: 0.02em;
  color: var(--ink-navy);
}

.page-home .hero__lede {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-ink);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.page-home .hero__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-home .media__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

/* ---------- 双版本卡口 ---------- */
.page-home .switch {
  margin-top: 32px;
  padding-top: 26px;
  border-top: 1px dashed var(--line);
}

.page-home .switch__head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.page-home .seal {
  flex: none;
  color: var(--sand-gold);
  margin-top: 2px;
}

.page-home .switch__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 0.02em;
  color: var(--ink-navy);
}

.page-home .switch__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-home .switch__grid {
  display: grid;
  gap: 16px;
}

.page-home .switch__card {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
  background: var(--paper-alt);
  transition: transform 180ms var(--ease), background-color 180ms var(--ease),
    border-color 180ms var(--ease);
}

.page-home .switch__card--current {
  border-left: 4px solid var(--sand-gold);
}

.page-home .switch__card:hover,
.page-home .switch__card:focus-within {
  transform: translateY(-2px);
  background: var(--sand-light);
  border-color: var(--sand-gold);
}

.page-home .switch__card:focus-visible {
  outline: 2px solid var(--sand-gold);
  outline-offset: 2px;
}

.page-home .switch__label {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--ink-navy);
}

.page-home .switch__stamp {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.page-home .switch__year {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--ink-navy);
  font-variant-numeric: tabular-nums;
}

.page-home .switch__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
}

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

.page-home .switch__diff li {
  position: relative;
  padding-left: 16px;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-ink);
}

.page-home .switch__diff li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--signal-cyan);
  border-radius: 50%;
}

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

.page-home .switch__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  aspect-ratio: 1200 / 760;
}

/* ---------- 章节索引条 ---------- */
.page-home .home-index {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-alt);
  padding: 16px 0;
}

.page-home .home-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 2px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--ink-navy);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-home .home-index__link:hover {
  color: var(--navy-link);
  border-bottom-color: var(--sand-gold);
}

.page-home .home-index__link[aria-current="true"] {
  color: var(--navy-link);
  border-bottom-color: var(--sand-gold);
}

.page-home .home-index__num {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--sand-gold);
  font-variant-numeric: tabular-nums;
}

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

.page-home .home-sec--alt {
  background: var(--paper-alt);
}

/* ---------- 版本对照 ---------- */
.page-home .compare {
  display: grid;
  gap: 18px;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
  background: var(--paper);
}

.page-home .compare__col {
  padding: 4px 0;
}

.page-home .compare__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--ink-navy);
}

.page-home .compare__col--new .compare__title {
  color: var(--navy-link);
}

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

.page-home .compare__list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.8;
}

.page-home .compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 1px;
  background: var(--sand-gold);
}

.page-home .compare__line {
  height: 1px;
  border-top: 1px dashed var(--line);
}

.page-home .compare__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 栏目索引 ---------- */
.page-home .routes {
  display: grid;
  gap: 30px;
}

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

.page-home .routes__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  padding: 20px 12px 20px 0;
  border-top: 1px solid var(--line);
  transition: background-color 160ms var(--ease), padding-left 160ms var(--ease);
}

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

.page-home .routes__item:hover {
  background: var(--paper);
  padding-left: 12px;
}

.page-home .routes__num {
  font-family: var(--font-serif);
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink-navy);
  font-variant-numeric: tabular-nums;
}

.page-home .routes__title {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.02em;
}

.page-home .routes__title a {
  color: var(--ink-navy);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

.page-home .routes__title a:hover {
  color: var(--navy-link);
  border-bottom-color: var(--sand-gold);
}

.page-home .routes__desc {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-ink);
}

.page-home .routes__meta {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

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

.page-home .routes__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

/* ---------- 档案细节 ---------- */
.page-home .detail {
  display: grid;
  gap: 24px;
}

.page-home .detail__block {
  padding: 22px 0 0;
  border-top: 2px solid var(--ink-navy);
}

.page-home .detail__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
  color: var(--ink-navy);
}

.page-home .detail__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
}

.page-home .ledger-wrap {
  margin-top: 14px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-home .ledger {
  width: 100%;
  min-width: 320px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 1.7;
}

.page-home .ledger__caption {
  text-align: left;
  padding-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.page-home .ledger th,
.page-home .ledger td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.page-home .ledger thead th {
  background: var(--ink-navy);
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.page-home .ledger tbody th {
  font-weight: 500;
  color: var(--text-ink);
}

.page-home .ledger tbody tr:nth-child(even) {
  background: var(--sand-light);
}

/* ---------- 服务规模数据带 ---------- */
.page-home .band {
  position: relative;
  overflow: hidden;
  padding: var(--home-sec-gap) 0;
  background: var(--navy-deep);
  color: var(--paper);
}

.page-home .band__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

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

.page-home .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 26px 22px;
  margin: 0;
  padding: 26px 0 0;
  border-top: 1px solid rgba(240, 227, 200, 0.28);
}

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

.page-home .stat__label {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: rgba(250, 247, 240, 0.72);
  margin-bottom: 6px;
}

.page-home .stat__value {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.page-home .stat__num {
  font-family: var(--font-serif);
  font-size: 38px;
  line-height: 1.1;
  color: var(--sand-gold);
  font-variant-numeric: tabular-nums;
}

.page-home .stat__unit {
  font-size: 14px;
  color: rgba(250, 247, 240, 0.82);
}

.page-home .band__foot {
  margin-top: 34px;
  padding-top: 24px;
  border-top: 1px dashed rgba(240, 227, 200, 0.28);
}

.page-home .band__text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(250, 247, 240, 0.88);
  max-width: 74ch;
}

.page-home .band__link {
  margin: 0;
  font-size: 14px;
}

/* ---------- 下一步动作 ---------- */
.page-home .next {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--home-radius);
  overflow: hidden;
}

.page-home .next__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 26px 22px;
  background: var(--paper);
  transition: background-color 180ms var(--ease);
}

.page-home .next__card:hover {
  background: var(--sand-light);
}

.page-home .next__num {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 16px;
  letter-spacing: 0.1em;
  color: var(--sand-gold);
  font-variant-numeric: tabular-nums;
}

.page-home .next__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: 0.02em;
  color: var(--ink-navy);
}

.page-home .next__text {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.85;
}

.page-home .next__btn {
  margin-top: auto;
}

.page-home .next__foot {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--text-muted);
}

/* ---------- 中屏 ---------- */
@media (min-width: 640px) {
  .page-home {
    --home-sec-gap: 72px;
  }

  .page-home .hero__frame {
    padding: 44px 32px 38px;
  }

  .page-home .hero__title {
    font-size: 36px;
  }

  .page-home .sec-head {
    margin-bottom: 42px;
  }

  .page-home .sec-head__title {
    font-size: 26px;
  }

  .page-home .switch__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .detail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px 34px;
  }

  .page-home .stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px 26px;
  }
}

/* ---------- 宽屏非对称编辑部版式 ---------- */
@media (min-width: 900px) {
  .page-home {
    --home-sec-gap: 92px;
  }

  .page-home .hero {
    padding: 44px 0 88px;
  }

  .page-home .hero__frame {
    padding: 52px 44px 46px;
  }

  .page-home .hero__grid {
    grid-template-columns: 148px minmax(0, 1fr) 360px;
    gap: 34px;
    align-items: start;
  }

  .page-home .hero__aside {
    flex-direction: column;
    gap: 14px;
    padding-right: 16px;
    border-right: 1px dashed var(--line);
    min-height: 100%;
  }

  .page-home .hero__title {
    font-size: 44px;
    line-height: 1.24;
  }

  .page-home .hero__lede {
    font-size: 17px;
    max-width: 40em;
  }

  .page-home .sec-head__title {
    font-size: 30px;
  }

  .page-home .switch__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

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

  .page-home .compare {
    grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr);
    gap: 26px;
    padding: 30px 34px;
  }

  .page-home .compare__line {
    height: auto;
    border-top: 0;
    border-left: 1px dashed var(--line);
  }

  .page-home .routes {
    grid-template-columns: minmax(0, 1fr) 336px;
    gap: 44px;
    align-items: start;
  }

  .page-home .routes__item {
    grid-template-columns: 56px minmax(0, 1fr);
    padding: 24px 16px 24px 0;
  }

  .page-home .routes__num {
    font-size: 26px;
  }

  .page-home .stat__num {
    font-size: 46px;
  }

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

/* ---------- 悬停展开差异摘要 ---------- */
@media (hover: hover) and (pointer: fine) and (min-width: 760px) {
  .page-home .switch__diff {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 200ms var(--ease), opacity 200ms var(--ease);
  }

  .page-home .switch__card:hover .switch__diff,
  .page-home .switch__card:focus-within .switch__diff,
  .page-home .switch__card:focus .switch__diff {
    max-height: 240px;
    opacity: 1;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .btn,
  .page-home .switch__card,
  .page-home .routes__item,
  .page-home .next__card,
  .page-home .switch__diff,
  .page-home .home-index__link {
    transition: none;
  }

  .page-home .btn:hover,
  .page-home .switch__card:hover,
  .page-home .switch__card:focus-within {
    transform: none;
  }
}