.page-home {
  --home-section-pad: clamp(2.5rem, 6vw, 4.5rem);
  --home-rail-w: 132px;
  --home-ink-text: #17231E;
  --home-ink-muted: #4C5C54;
  --home-paper-line: rgba(18, 58, 47, .18);
  background: var(--c-ink);
  color: var(--c-paper);
  padding-bottom: clamp(2rem, 5vw, 4rem);
  overflow-x: hidden;
}

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

/* ---------- 顶部上下文条 ---------- */
.page-home .home-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem .7rem;
  padding-block: .9rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--c-muted);
  border-bottom: 1px solid var(--c-line-faint);
}

.page-home .home-context__brand {
  color: var(--c-mint-2);
  letter-spacing: .06em;
}

.page-home .home-context__sep {
  opacity: .5;
}

/* ---------- 框架与左侧锚点 ---------- */
.page-home .home-frame {
  max-width: 1320px;
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

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

.page-home .home-rail__title,
.page-home .home-rail__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-muted);
}

.page-home .home-rail__title {
  margin-bottom: .8rem;
  padding-left: .75rem;
}

.page-home .home-rail__note {
  margin-top: 1.1rem;
  padding-left: .75rem;
  line-height: 1.7;
  color: var(--c-line);
  border-top: 1px solid var(--c-line-faint);
  padding-top: .8rem;
}

.page-home .home-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--c-line-faint);
}

.page-home .home-rail__link {
  display: block;
  padding: .45rem .75rem;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--c-muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .home-rail__link:hover,
.page-home .home-rail__link:focus-visible {
  color: var(--c-mint);
}

.page-home .home-rail__link[aria-current="true"] {
  color: var(--c-mint);
  border-left-color: var(--c-mint);
  background: rgba(107, 255, 196, .07);
}

@media (min-width: 1080px) {
  .page-home .home-frame {
    grid-template-columns: var(--home-rail-w) minmax(0, 1fr);
    column-gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-home .home-rail {
    display: block;
    position: sticky;
    top: 96px;
    align-self: start;
    padding-top: clamp(2.5rem, 5vw, 4rem);
  }
}

/* ---------- 章节通用 ---------- */
.page-home .home-section {
  padding-block: var(--home-section-pad);
  border-top: 1px solid var(--c-line-faint);
}

.page-home .home-section--paper {
  background: var(--c-cream);
  color: var(--home-ink-text);
  padding: clamp(1.4rem, 4vw, 2.75rem);
  border: 1px solid var(--c-cream-2);
  border-top: none;
}

.page-home .home-section--board {
  background:
    repeating-linear-gradient(90deg, rgba(46, 91, 76, .22) 0 1px, transparent 1px 88px),
    var(--c-ink-2);
  padding-inline: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--c-line-faint);
  border-top: 1px solid var(--c-line-soft);
}

.page-home .sec-head {
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.page-home .sec-head .chapter-num {
  display: inline-block;
  padding: .12rem .5rem;
  margin-bottom: .9rem;
  background: var(--c-mint);
  color: var(--c-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  border-radius: 2px;
}

.page-home .sec-head .eyebrow {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-mint-2);
}

.page-home .sec-head .section__title {
  margin: 0 0 .85rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.55rem, 3.6vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -.015em;
  color: var(--c-paper);
}

.page-home .sec-head .lede {
  max-width: 62ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(247, 244, 236, .78);
}

.page-home .home-section--paper .sec-head .chapter-num {
  background: var(--c-ink-3);
  color: var(--c-cream);
}

.page-home .home-section--paper .sec-head .eyebrow {
  color: var(--c-ink-3);
}

.page-home .home-section--paper .sec-head .section__title {
  color: var(--home-ink-text);
}

.page-home .home-section--paper .sec-head .lede {
  color: var(--home-ink-muted);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding-top: clamp(1.75rem, 4vw, 3rem);
  padding-bottom: var(--home-section-pad);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
}

.page-home .hero__kicker {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-mint-2);
}

.page-home .hero__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-mint);
  box-shadow: 0 0 0 4px rgba(107, 255, 196, .16);
}

.page-home .hero__title {
  margin: 0 0 1.15rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.35rem, 7vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -.03em;
  color: var(--c-paper);
}

.page-home .hero__title em {
  font-style: normal;
  color: var(--c-mint);
}

.page-home .hero__lede {
  max-width: 48ch;
  margin: 0 0 1.6rem;
  font-size: 1rem;
  line-height: 1.78;
  color: rgba(247, 244, 236, .82);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

.page-home .hero__visual {
  position: relative;
  margin: 0;
}

.page-home .hero__img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--c-line-soft);
  background: var(--c-ink-3);
}

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

.page-home .hero__img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(7, 28, 23, 0) 40%, rgba(7, 28, 23, .72) 100%);
  pointer-events: none;
}

.page-home .hero__caption {
  margin-top: .55rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--c-muted);
}

.page-home .hero__coord {
  position: absolute;
  right: .6rem;
  bottom: .6rem;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--c-mint);
  background: rgba(7, 28, 23, .72);
  padding: .2rem .45rem;
  border: 1px solid var(--c-line-soft);
}

.page-home .hero__facts {
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.75rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--c-line-faint);
  border-block: 1px solid var(--c-line-faint);
}

.page-home .hero-fact {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: .9rem .25rem;
  background: var(--c-ink);
}

.page-home .hero-fact__k {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-mint);
}

.page-home .hero-fact__v {
  font-size: .875rem;
  line-height: 1.6;
  color: rgba(247, 244, 236, .74);
}

@media (min-width: 560px) {
  .page-home .hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .hero-fact {
    padding: 1rem 1.1rem;
  }
}

@media (min-width: 900px) {
  .page-home .hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .hero__copy {
    grid-column: 1 / span 7;
    padding-top: clamp(.5rem, 2vw, 1.75rem);
  }

  .page-home .hero__visual {
    grid-column: 8 / span 5;
    margin-top: 1.75rem;
  }
}

/* ---------- 01 版本对照 ---------- */
.page-home .change-figure {
  margin: 0 0 clamp(1.5rem, 3vw, 2.25rem);
}

.page-home .change-figure .media-frame {
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--c-line-soft);
  background: var(--c-ink-3);
}

.page-home .change-figure .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .change-figure figcaption,
.page-home .path-figure figcaption,
.page-home .report-figure figcaption {
  margin-top: .55rem;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--c-muted);
}

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

.page-home .change-card {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  background: var(--c-ink-2);
  border: 1px solid var(--c-line-soft);
  border-top: 2px solid var(--c-line);
}

.page-home .change-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin: 0;
}

.page-home .change-card__path {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--c-muted);
}

.page-home .change-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-home .change-card p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.72;
  color: rgba(247, 244, 236, .76);
}

.page-home .change-card .change-card__where {
  margin-top: auto;
  padding-top: .7rem;
  border-top: 1px dashed var(--c-line-faint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--c-mint-2);
}

@media (min-width: 760px) {
  .page-home .change-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .tag {
  display: inline-block;
  padding: .12rem .45rem;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  white-space: nowrap;
}

.page-home .tag--change {
  background: var(--c-orange);
  color: #26140A;
}

.page-home .tag--data {
  background: var(--c-mint);
  color: #06231A;
}

/* ---------- 02 更新记录 ---------- */
.page-home .log-list {
  list-style: none;
  margin: 0 0 1.35rem;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-home .log-item details {
  background: var(--c-paper);
  border: 1px solid var(--home-paper-line);
}

.page-home .log-item details[open] {
  border-left: 3px solid var(--c-orange);
}

.page-home .log-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem .6rem;
  padding: .8rem .9rem;
  cursor: pointer;
  list-style: none;
  transition: background var(--dur) var(--ease);
}

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

.page-home .log-summary:hover {
  background: rgba(18, 58, 47, .05);
}

.page-home .log-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--c-ink-3);
}

.page-home .log-item details[open] .log-summary::after {
  content: "–";
  color: var(--c-orange);
}

.page-home .log-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-ink-3);
  font-weight: 500;
}

.page-home .log-round {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--home-ink-muted);
}

.page-home .log-title {
  flex: 1 1 12ch;
  min-width: 8ch;
  font-size: .9375rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--home-ink-text);
}

.page-home .log-body {
  padding: 0 .9rem .95rem;
  border-top: 1px dashed var(--home-paper-line);
}

.page-home .log-body p {
  margin: .75rem 0 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--home-ink-muted);
}

.page-home .home-section--paper .link-more {
  color: var(--c-ink-3);
}

.page-home .home-section--paper .link-more:hover {
  border-bottom-color: var(--c-ink-3);
}

/* ---------- 03 三步路径 ---------- */
.page-home .path-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

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

.page-home .step {
  position: relative;
  padding-left: 3.1rem;
  padding-bottom: 1.75rem;
}

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

.page-home .step::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 2.3rem;
  bottom: .2rem;
  width: 1px;
  background: var(--c-line-soft);
}

.page-home .step:last-child::before {
  display: none;
}

.page-home .step__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 2.1rem;
  height: 2.1rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--c-mint-2);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--c-mint);
}

.page-home .step__title {
  margin: .1rem 0 .4rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--c-paper);
}

.page-home .step p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(247, 244, 236, .76);
}

.page-home .path-figure {
  margin: 0;
}

.page-home .path-figure .media-frame {
  overflow: hidden;
  aspect-ratio: 3 / 4;
  max-width: 300px;
  border: 1px solid var(--c-line-soft);
  background: var(--c-ink-3);
}

.page-home .path-figure .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .path-note {
  margin: 1.75rem 0 1.35rem;
  padding-left: .9rem;
  border-left: 2px solid var(--c-mint-2);
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(247, 244, 236, .8);
}

@media (min-width: 900px) {
  .page-home .path-grid {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: start;
  }

  .page-home .path-figure {
    justify-self: end;
  }
}

/* ---------- 04 战报索引 ---------- */
.page-home .reports {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 3vw, 2.25rem);
}

.page-home .report-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--c-line-soft);
}

.page-home .report-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .3rem .9rem;
  align-items: center;
  padding: .85rem .15rem;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-home .report-round {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-mint);
}

.page-home .report-name {
  font-size: .9375rem;
  line-height: 1.55;
  color: rgba(247, 244, 236, .84);
}

.page-home .report-time {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--c-muted);
}

.page-home .report-figure {
  margin: 0;
}

.page-home .report-figure .media-frame {
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--c-line-soft);
  background: var(--c-ink-3);
}

.page-home .report-figure .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 640px) {
  .page-home .report-row {
    grid-template-columns: 88px minmax(0, 1fr) auto;
  }

  .page-home .report-row .tag {
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
  }

  .page-home .report-time {
    grid-column: 2;
    grid-row: 2;
  }
}

@media (min-width: 900px) {
  .page-home .reports {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 05 沿革与数据 ---------- */
.page-home .stats {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--home-paper-line);
  border: 1px solid var(--home-paper-line);
}

.page-home .stat {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  padding: 1rem 1.1rem;
  background: var(--c-paper);
}

.page-home .stat__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--c-ink-3);
}

.page-home .stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
  line-height: 1.6;
  color: var(--home-ink-muted);
}

.page-home .heritage-note {
  max-width: 62ch;
  margin: 0 0 1.5rem;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--home-ink-muted);
}

@media (min-width: 700px) {
  .page-home .stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 收尾联系 ---------- */
.page-home .home-cta {
  margin-top: var(--home-section-pad);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  background:
    repeating-linear-gradient(135deg, rgba(107, 255, 196, .06) 0 2px, transparent 2px 14px),
    linear-gradient(150deg, var(--c-ink-3), var(--c-ink-2) 55%, var(--c-ink));
  border: 1px solid var(--c-line-soft);
  border-left: 3px solid var(--c-mint);
  display: grid;
  gap: .9rem;
  justify-items: start;
}

.page-home .home-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.4vw, 2rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-home .home-cta__text {
  max-width: 56ch;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(247, 244, 236, .78);
}

.page-home .home-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: .35rem;
}

/* ---------- 链接与按钮微调 ---------- */
.page-home .link-more {
  display: inline-block;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--c-mint);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .link-more:hover,
.page-home .link-more:focus-visible {
  border-bottom-color: currentColor;
}

.page-home .btn {
  text-decoration: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-rail__link,
  .page-home .log-summary,
  .page-home .link-more {
    transition: none;
  }
}
<<<END>>>