.page-home {
  background: var(--ink-900);
  color: var(--text-main);
}

/* ---------- 页首上下文带 ---------- */
.page-home .page-context {
  background: var(--ink-900);
  border-bottom: 1px solid var(--ink-600);
}

.page-home .page-context p {
  margin: 0;
  padding: 12px 0;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--slate-300);
}

.page-home .page-context .mono {
  color: var(--amber-200);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  padding: 40px 0 52px;
  background: radial-gradient(120% 90% at 88% 4%, rgba(242, 178, 51, .10) 0%, rgba(8, 18, 31, 0) 62%);
}

.page-home .hero-grid {
  display: grid;
  gap: 34px;
}

.page-home .hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.15rem, 7.4vw, 3.9rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--text-main);
  max-width: 14em;
}

.page-home .hero-lead {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.75;
  color: var(--slate-300);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-home .hero-collage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-home .path-card {
  position: relative;
  display: block;
  padding: 22px 20px 20px;
  background: var(--ink-700);
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-m);
  color: var(--text-main);
  text-decoration: none;
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

.page-home .path-card:hover,
.page-home .path-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--amber-500);
  box-shadow: var(--shadow-2);
}

.page-home .path-card--lead {
  overflow: hidden;
  background: linear-gradient(152deg, var(--ink-700) 0%, var(--ink-800) 100%);
}

.page-home .path-card--lead::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--amber-500) 0%, var(--celadon-400) 100%);
}

.page-home .path-num {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-s);
  background: var(--ink-900);
  color: var(--amber-500);
  font-size: 13px;
  letter-spacing: .08em;
}

.page-home .path-title {
  margin: 14px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-home .path-card--lead .path-title {
  font-size: 27px;
}

.page-home .path-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--slate-300);
}

.page-home .path-cta {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--amber-200);
}

.page-home .path-cta::after {
  content: " →";
}

.page-home .hero-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-m);
  background: var(--ink-800);
}

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

/* ---------- 索引带 ---------- */
.page-home .index-band {
  padding: 52px 0;
  background: var(--ink-800);
  border-top: 1px solid var(--ink-600);
  border-bottom: 1px solid var(--ink-600);
}

.page-home .band-head h2,
.page-home .versions h2,
.page-home .changes h2,
.page-home .quarter-band h2,
.page-home .scale h2,
.page-home .support h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.4vw, 2.15rem);
  line-height: 1.16;
  letter-spacing: -.015em;
}

.page-home .band-lead,
.page-home .versions-lead,
.page-home .scale-lead,
.page-home .support-main p {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate-300);
}

.page-home .chip-groups {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.page-home .chip-label {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--slate-300);
  text-transform: uppercase;
}

.page-home .chip-row {
  display: flex;
  gap: 10px;
  margin: 12px 0 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-home .chip {
  position: relative;
  flex: 0 0 auto;
  padding: 8px 15px 10px;
  border: 1px solid var(--ink-600);
  border-radius: 999px;
  background: var(--ink-700);
  color: var(--slate-300);
  font-size: 13.5px;
  white-space: nowrap;
}

.page-home .chip::after {
  content: "";
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 6px;
  height: 2px;
  background: var(--amber-500);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .28s var(--ease);
}

.page-home .chip:hover::after {
  transform: scaleX(1);
}

.page-home .chip.is-on {
  background: var(--amber-500);
  border-color: var(--amber-500);
  color: var(--ink-900);
  font-weight: 600;
}

.page-home .chip.is-on::after {
  display: none;
}

.page-home .result-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink-600);
}

.page-home .result-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 15px 2px;
  border-bottom: 1px solid var(--ink-600);
  font-size: 14.5px;
}

.page-home .result-code {
  color: var(--amber-200);
  font-size: 13px;
  letter-spacing: .04em;
}

.page-home .result-col {
  font-weight: 600;
}

.page-home .result-batch {
  color: var(--slate-300);
  font-size: 13px;
}

.page-home .result-state {
  margin-left: auto;
  color: var(--slate-300);
  font-size: 13px;
}

.page-home .band-figure {
  margin: 32px 0 0;
}

/* ---------- 三版导航 ---------- */
.page-home .versions {
  padding: 52px 0;
  background: var(--ink-900);
}

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

.page-home .version-stack {
  display: grid;
  gap: 22px;
  margin-top: 30px;
  padding-bottom: 14px;
}

.page-home .version-card {
  position: relative;
  margin-right: 18px;
  padding: 20px 20px 18px;
  background: var(--ink-700);
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-m);
  box-shadow:
    6px 6px 0 -1px var(--ink-800),
    6px 6px 0 0 var(--ink-600),
    12px 12px 0 -1px var(--ink-900),
    12px 12px 0 0 var(--ink-600);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

.page-home .version-card:hover {
  transform: translateY(-4px);
  box-shadow:
    6px 10px 0 -1px var(--ink-800),
    6px 10px 0 0 var(--ink-600),
    12px 18px 0 -1px var(--ink-900),
    12px 18px 0 0 var(--ink-600);
}

.page-home .version-card--current {
  border-color: var(--amber-500);
}

.page-home .version-card-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-home .version-no {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--amber-200);
}

.page-home .version-name {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.25;
}

.page-home .version-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--slate-300);
}

.page-home .version-audience {
  margin: 12px 0 0;
  padding-left: 11px;
  border-left: 2px solid var(--amber-500);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--slate-300);
}

.page-home .versions-aside .media-frame {
  margin: 0;
}

/* ---------- 最近改动 ---------- */
.page-home .changes {
  padding: 52px 0;
  background: var(--ink-800);
  border-top: 1px solid var(--ink-600);
  border-bottom: 1px solid var(--ink-600);
}

.page-home .changes-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}

.page-home .change-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink-600);
}

.page-home .change-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  padding: 16px 2px;
  border-bottom: 1px solid var(--ink-600);
}

.page-home .change-batch {
  font-size: 13px;
  color: var(--amber-200);
  letter-spacing: .04em;
}

.page-home .change-text {
  flex: 1 1 100%;
  margin: 0;
  order: 3;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-main);
}

.page-home .change-state {
  margin-left: auto;
  font-size: 13px;
  color: var(--slate-300);
  order: 4;
}

/* ---------- 季度专区 ---------- */
.page-home .quarter-band {
  position: relative;
  overflow: hidden;
  padding: 56px 0;
  background: var(--ink-900);
}

.page-home .quarter-texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .13;
  pointer-events: none;
}

.page-home .quarter-inner {
  position: relative;
  z-index: 1;
}

.page-home .quarter-scroll {
  display: flex;
  gap: 16px;
  margin-top: 30px;
  padding: 4px 4px 18px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-home .quarter-scroll:focus-visible {
  outline: 2px solid var(--amber-500);
  outline-offset: 4px;
}

.page-home .quarter-card {
  flex: 0 0 82%;
  max-width: 300px;
  padding: 20px 18px;
  background: var(--ink-700);
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-m);
  scroll-snap-align: start;
  transition: transform .28s var(--ease), border-color .28s var(--ease);
}

.page-home .quarter-card:hover {
  transform: translateY(-4px);
  border-color: var(--celadon-400);
}

.page-home .quarter-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-home .quarter-code {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--celadon-400);
}

.page-home .quarter-name {
  margin: 14px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
}

.page-home .quarter-count {
  margin: 0;
  font-size: 13px;
  color: var(--amber-200);
}

.page-home .quarter-desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-300);
}

.page-home .quarter-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--celadon-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), color .25s var(--ease);
}

.page-home .quarter-link:hover,
.page-home .quarter-link:focus-visible {
  color: var(--amber-200);
  border-bottom-color: var(--amber-200);
}

/* ---------- 规模数据带 ---------- */
.page-home .scale {
  padding: 52px 0;
  background: var(--ink-800);
  border-top: 1px solid var(--ink-600);
}

.page-home .scale-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  margin: 30px 0 0;
  border-top: 1px solid var(--ink-600);
  border-left: 1px solid var(--ink-600);
}

.page-home .scale-cell {
  padding: 22px 16px;
  border-right: 1px solid var(--ink-600);
  border-bottom: 1px solid var(--ink-600);
}

.page-home .scale-cell dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--amber-200);
}

.page-home .scale-cell dt {
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--slate-300);
}

/* ---------- 支持收束 ---------- */
.page-home .support {
  padding: 56px 0 76px;
  background: var(--ink-900);
}

.page-home .support-layout {
  display: grid;
  gap: 32px;
}

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

.page-home .contact-list {
  margin: 0;
  padding: 20px 18px;
  background: var(--ink-700);
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-m);
}

.page-home .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--ink-600);
}

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

.page-home .contact-row dt {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--slate-300);
}

.page-home .contact-row dd {
  margin: 0;
  font-size: 14px;
  color: var(--text-main);
}

.page-home .contact-row dd.mono {
  color: var(--amber-200);
  font-size: 13.5px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .hero {
    padding: 56px 0 64px;
  }

  .page-home .hero-collage {
    grid-template-columns: 1.1fr .9fr;
    grid-template-rows: auto auto auto;
    align-items: start;
  }

  .page-home .path-card--lead {
    grid-column: 1;
    grid-row: 1 / span 3;
  }

  .page-home .hero-figure {
    grid-column: 2;
    grid-row: 1;
  }

  .page-home .path-card--batch {
    grid-column: 2;
    grid-row: 2;
    margin-left: 16px;
  }

  .page-home .path-card--resume {
    grid-column: 2;
    grid-row: 3;
    margin-left: 16px;
  }

  .page-home .change-text {
    flex: 1 1 auto;
    order: 0;
  }

  .page-home .change-state {
    order: 0;
  }

  .page-home .quarter-card {
    flex: 0 0 46%;
  }
}

@media (min-width: 960px) {
  .page-home .hero {
    padding: 76px 0 84px;
  }

  .page-home .hero-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0 24px;
    align-items: start;
  }

  .page-home .hero-copy {
    grid-column: 1 / span 6;
    padding-right: 8px;
  }

  .page-home .hero-collage {
    grid-column: 7 / -1;
    margin-top: 6px;
  }

  .page-home .index-band,
  .page-home .versions,
  .page-home .changes {
    padding: 84px 0;
  }

  .page-home .quarter-band {
    padding: 92px 0;
  }

  .page-home .scale {
    padding: 64px 0;
  }

  .page-home .support {
    padding: 88px 0 104px;
  }

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

  .page-home .result-list {
    margin-top: 30px;
  }

  .page-home .result-item {
    gap: 8px 22px;
  }

  .page-home .versions-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
  }

  .page-home .version-stack {
    gap: 24px;
  }

  .page-home .versions-aside {
    padding-top: 44px;
  }

  .page-home .quarter-card {
    flex: 0 0 24%;
    max-width: none;
  }

  .page-home .support-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
  }
}
<<<END>>>