.page-home {
  --home-line: rgba(143, 179, 170, 0.2);
  --home-line-strong: rgba(143, 179, 170, 0.38);
  --home-deep: rgba(7, 18, 30, 0.55);
  color: var(--paper);
  display: block;
}

.page-home section {
  margin: 0 0 64px;
}

.page-home .home-sec__head {
  display: grid;
  gap: 12px;
  margin-bottom: 28px;
}

.page-home .home-sec__title {
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.015em;
  font-weight: 800;
  margin: 0 0 10px;
}

.page-home .home-sec__lede {
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
  max-width: 34em;
}

.page-home .home-sec__head .chapter-num {
  line-height: 0.9;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  padding-top: 8px;
}

.page-home .home-hero__grid {
  display: grid;
  gap: 36px;
}

.page-home .home-hero__title {
  font-size: clamp(40px, 10vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 800;
  margin: 14px 0 18px;
}

.page-home .home-hero__lede {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--paper-dim);
  max-width: 31em;
  margin: 0;
}

.page-home .home-index {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home .home-index__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid var(--home-line);
}

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

.page-home .home-index__num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 2px;
}

.page-home .home-index__name {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 3px;
  letter-spacing: 0.01em;
}

.page-home .home-index__desc {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mist);
  margin: 0;
}

.page-home .home-hero__stack {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .home-hero__media .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

.page-home .home-version {
  position: relative;
  z-index: 2;
  margin: -58px 12px 0;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--ink-700);
  border: 1px solid rgba(201, 162, 39, 0.32);
  box-shadow: var(--shadow-panel);
}

.page-home .home-version__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.page-home .home-version__code {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin: 0 0 4px;
}

.page-home .home-version__title {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-home .home-version__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-dim);
  margin: 14px 0 0;
}

.page-home .home-version__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.page-home .home-version__stat {
  background: var(--home-deep);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.page-home .home-version__stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-home .home-version__stat span {
  display: block;
  font-size: 11.5px;
  color: var(--mist);
  margin-top: 2px;
}

.page-home .home-version__btn {
  margin-top: 16px;
  width: 100%;
}

.page-home .home-lamps {
  padding: 18px;
  border-radius: var(--radius-md);
}

.page-home .home-lamps__caption {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--steel);
  margin: 0 0 10px;
}

.page-home .home-lamps__svg {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
}

.page-home .home-lamps__legend {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.page-home .home-lamps__legend li {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  color: var(--mist);
}

.page-home .home-lamps__more {
  margin-top: 14px;
  border-top: 1px solid var(--home-line);
  padding-top: 12px;
  font-size: 13px;
}

.page-home .home-lamps__more summary {
  cursor: pointer;
  color: var(--amber);
  font-size: 13px;
  list-style: none;
}

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

.page-home .home-lamps__more summary::after {
  content: " +";
  font-family: var(--font-mono);
}

.page-home .home-lamps__more[open] summary::after {
  content: " −";
}

.page-home .home-lamps__more p {
  margin: 10px 0 0;
  line-height: 1.7;
  color: var(--paper-dim);
}

/* ---------- 01 版本对照 ---------- */
.page-home .home-timeline {
  padding: 28px 20px 32px;
  border-radius: var(--radius-lg);
}

.page-home .home-timeline__figure {
  margin: 0 0 26px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.page-home .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  position: relative;
}

.page-home .tl-node {
  background: var(--ink-800);
  border: 1px solid var(--home-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-home .tl-node--current {
  border-color: rgba(201, 162, 39, 0.55);
  background: linear-gradient(180deg, rgba(201, 162, 39, 0.1), rgba(11, 27, 43, 0.92));
}

.page-home .tl-node__sum {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-home .tl-node__ver {
  font-size: 17px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.06em;
}

.page-home .tl-node__year {
  font-size: 12px;
  color: var(--steel);
  letter-spacing: 0.1em;
}

.page-home .tl-node__chip {
  margin-left: auto;
  font-size: 11.5px;
}

.page-home .tl-node__list {
  list-style: none;
  margin: 0;
  padding: 0 16px 16px;
  display: grid;
  gap: 8px;
}

.page-home .tl-node__list li {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-dim);
  padding-left: 14px;
  position: relative;
}

.page-home .tl-node__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1.5px;
  background: var(--mist);
}

.page-home .diff {
  margin-top: 32px;
  padding-top: 26px;
  border-top: 1px solid var(--home-line);
}

.page-home .diff__title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
}

.page-home .diff-grid {
  display: grid;
  gap: 10px;
}

.page-home .diff-item {
  background: var(--home-deep);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.page-home .diff-item:nth-child(3n + 2) {
  border-left-color: var(--celadon);
}

.page-home .diff-item:nth-child(3n + 3) {
  border-left-color: var(--mist);
}

.page-home .diff-item__cat {
  font-size: 11.5px;
  margin-bottom: 8px;
}

.page-home .diff-item__text {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-dim);
  margin: 0;
}

.page-home .diff__foot {
  margin-top: 20px;
  display: grid;
  gap: 14px;
  align-items: center;
}

.page-home .diff__count {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
  margin: 0;
}

.page-home .diff__count strong {
  color: var(--gold);
  font-size: 17px;
  margin-right: 4px;
}

/* ---------- 02 四条主线 ---------- */
.page-home .routes {
  display: grid;
  gap: 16px;
}

.page-home .route-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px 20px 20px 24px;
  background: var(--ink-700);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-home .route-card__bar {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--celadon);
}

.page-home .route-card--pr .route-card__bar {
  background: var(--mist);
}

.page-home .route-card--ls .route-card__bar {
  background: var(--amber);
}

.page-home .route-card__num {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--mist);
  margin: 0 0 10px;
}

.page-home .route-card__title {
  font-size: 19px;
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

.page-home .route-card__text {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--paper-dim);
  margin: 0;
}

.page-home .route-card__media {
  margin: 16px 0 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

.page-home .route-card__btn {
  margin-top: 18px;
  align-self: flex-start;
}

/* ---------- 03 更新条目 ---------- */
.page-home .home-updates__grid {
  display: grid;
  gap: 28px;
}

.page-home .updates {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .update-item {
  background: var(--home-deep);
  border: 1px solid var(--home-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-home .update-item[open] {
  border-color: var(--home-line-strong);
  background: rgba(20, 52, 77, 0.6);
}

.page-home .update-item__sum {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-home .update-item__code {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-home .update-item__line {
  flex: 1 1 100%;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--paper);
}

.page-home .update-item__body {
  padding: 0 16px 16px;
}

.page-home .update-item__body p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

.page-home .home-updates__aside {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .home-updates__aside .media-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
}

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

.page-home .home-updates__note {
  background: var(--ink-700);
  border-radius: var(--radius-md);
  padding: 18px;
}

.page-home .home-updates__note-code {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin: 0 0 8px;
}

.page-home .home-updates__note-text {
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--paper-dim);
  margin: 0 0 14px;
}

/* ---------- 04 规模 ---------- */
.page-home .home-scale {
  padding: 30px 20px 34px;
  border-radius: var(--radius-lg);
}

.page-home .home-sec__head--ink .home-sec__lede {
  color: var(--steel);
}

.page-home .scale {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home .scale__item {
  padding: 18px 0;
  border-top: 1px solid rgba(16, 24, 32, 0.16);
}

.page-home .scale__item:last-child {
  border-bottom: 1px solid rgba(16, 24, 32, 0.16);
}

.page-home .scale__num {
  display: block;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--coal);
  line-height: 1.1;
}

.page-home .scale__label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-800);
  margin-top: 6px;
}

.page-home .scale__note {
  font-size: 13px;
  line-height: 1.75;
  color: var(--steel);
  margin: 6px 0 0;
}

/* ---------- 05 栏目索引 ---------- */
.page-home .jump__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home .jump__item a {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 24px;
  gap: 12px;
  align-items: center;
  padding: 16px 8px 16px 0;
  border-top: 1px solid var(--home-line);
  color: inherit;
  text-decoration: none;
  transition: background 160ms var(--ease), padding-left 160ms var(--ease);
}

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

.page-home .jump__item a:hover,
.page-home .jump__item a:focus-visible {
  background: rgba(20, 52, 77, 0.55);
  padding-left: 10px;
}

.page-home .jump__num {
  font-size: 12.5px;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.page-home .jump__body {
  display: block;
  min-width: 0;
}

.page-home .jump__name {
  display: block;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 3px;
}

.page-home .jump__desc {
  display: block;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-home .jump__arrow {
  font-size: 16px;
  color: var(--amber);
  justify-self: end;
}

.page-home .home-sign {
  margin: 32px 0 0;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--gold);
}

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

  .page-home .scale {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-home .scale__item {
    border-bottom: 1px solid rgba(16, 24, 32, 0.16);
  }
}

@media (min-width: 900px) {
  .page-home section {
    margin-bottom: 96px;
  }

  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }

  .page-home .home-version {
    margin: -64px 24px 0 32px;
    padding: 24px 26px;
  }

  .page-home .home-version__btn {
    width: auto;
  }

  .page-home .home-timeline {
    padding: 40px 34px 44px;
  }

  .page-home .home-sec__head {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
    margin-bottom: 34px;
  }

  .page-home .timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    align-items: start;
  }

  .page-home .timeline::before {
    content: "";
    position: absolute;
    left: 2%;
    right: 2%;
    top: 24px;
    height: 2px;
    background: linear-gradient(90deg, var(--home-line-strong), var(--gold));
    z-index: 0;
  }

  .page-home .tl-node {
    position: relative;
    z-index: 1;
  }

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

  .page-home .diff__foot {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .page-home .routes {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
  }

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

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

  .page-home .route-card__title {
    font-size: 21px;
  }

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

  .page-home .home-scale {
    padding: 44px 40px 48px;
  }

  .page-home .scale {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 40px;
  }

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

  .page-home .jump__item a {
    padding: 20px 12px 20px 4px;
  }

  .page-home .jump__name {
    font-size: 18px;
  }
}

@media (min-width: 1180px) {
  .page-home .home-hero__title {
    font-size: 64px;
  }

  .page-home .home-hero__lede {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .jump__item a {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>