.page-home {
  --home-frame-inset: 8px;
  --home-gap: clamp(16px, 2.4vw, 32px);
  display: block;
  background: var(--obsidian);
  color: var(--paper);
}

/* ============ 首屏框景 ============ */

.page-home .hero-window {
  padding: clamp(28px, 5vw, 56px) 0 clamp(36px, 5vw, 64px);
  background:
    radial-gradient(120% 92% at 10% 0%, rgba(38, 50, 68, .8), rgba(11, 14, 19, 0) 62%),
    var(--obsidian);
}

.page-home .hero-window__frame {
  position: relative;
  border: 1px solid var(--ink-line);
  background: linear-gradient(180deg, rgba(21, 26, 33, .94), rgba(11, 14, 19, .6));
  box-shadow: var(--shadow-soft);
  padding: clamp(22px, 3.4vw, 48px);
}

.page-home .hero-window__frame::before {
  content: "";
  position: absolute;
  inset: var(--home-frame-inset);
  border: 1px solid var(--line-soft);
  pointer-events: none;
}

.page-home .hero-window__scale {
  position: absolute;
  left: 18px;
  right: 18px;
  height: 7px;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    90deg,
    var(--ink-line) 0,
    var(--ink-line) 1px,
    transparent 1px,
    transparent 28px
  );
}

.page-home .hero-window__scale--top { top: 0; }
.page-home .hero-window__scale--bottom { bottom: 0; }

.page-home .hero-window__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-home .hero-ctx {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
  margin: 0 0 18px;
}

.page-home .hero-ctx__sep { color: var(--ink-line); }
.page-home .hero-ctx__now { color: var(--amber); }

.page-home .hero-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.28;
  letter-spacing: .01em;
  color: var(--paper);
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  max-width: 20em;
}

.page-home .hero-plate {
  border-left: 2px solid var(--amber);
  padding-left: clamp(14px, 1.6vw, 22px);
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

.page-home .hero-plate__label {
  display: block;
  margin: 0 0 4px;
}

.page-home .hero-plate__no {
  font-family: var(--font-mono);
  font-size: clamp(66px, 12vw, 124px);
  font-weight: 700;
  line-height: .92;
  letter-spacing: -.02em;
  color: var(--gold);
  margin: 0 0 10px;
  font-variant-numeric: tabular-nums;
}

.page-home .hero-plate__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  font-size: 13.5px;
  color: var(--mist);
}

.page-home .hero-plate__date {
  color: var(--paper);
  font-size: 14px;
}

.page-home .hero-plate__state { color: var(--celadon); }

.page-home .hero-lede {
  max-width: 38em;
  margin: 0 0 clamp(20px, 2.6vw, 30px);
}

.page-home .hero-window__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ink-line);
  background: var(--carbon);
}

/* ============ 主体栅格 ============ */

.page-home .home-body {
  padding-block: clamp(40px, 6vw, 76px);
}

.page-home .main-col > .section + .section {
  margin-top: clamp(48px, 6vw, 80px);
}

/* ============ 侧栏时间轴 ============ */

.page-home .sidebar-col.home-side {
  align-self: start;
}

.page-home .home-side__note {
  font-size: 12.5px;
  letter-spacing: .04em;
  margin: 6px 0 16px;
}

.page-home .home-rail {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .home-rail::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 20px;
  bottom: 20px;
  width: 1px;
  background: linear-gradient(180deg, var(--amber), rgba(217, 164, 65, .1));
}

.page-home .home-rail .timeline__item {
  position: relative;
}

.page-home .home-rail .timeline__link {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 10px 10px 8px;
  border-left: 2px solid transparent;
  text-decoration: none;
  transition: background-color .18s ease, border-color .18s ease;
}

.page-home .home-rail .timeline__link:hover,
.page-home .home-rail .timeline__link.is-active {
  background: var(--grayblue);
  border-left-color: var(--gold);
}

.page-home .home-rail .timeline__node {
  position: relative;
  z-index: 1;
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  margin-top: 6px;
  background: var(--grayblue);
  border: 1px solid var(--ink-line);
  transition: background-color .18s ease, border-color .18s ease;
}

.page-home .home-rail .timeline__link:hover .timeline__node,
.page-home .home-rail .timeline__link.is-active .timeline__node {
  background: var(--gold);
  border-color: var(--amber);
}

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

.page-home .home-rail .timeline__date {
  display: block;
  font-size: 12.5px;
  color: var(--gold);
  letter-spacing: .06em;
}

.page-home .home-rail .timeline__title {
  display: block;
  margin-top: 3px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
  transition: color .18s ease;
}

.page-home .home-rail .timeline__link:hover .timeline__title,
.page-home .home-rail .timeline__link.is-active .timeline__title {
  color: var(--paper);
}

/* ============ 两条产品线对照 ============ */

.page-home .lineup-figure {
  margin-top: clamp(20px, 2.6vw, 30px);
}

.page-home .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .lineup-name {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 18px;
  line-height: 1.5;
  margin: 6px 0 0;
  color: var(--obsidian);
}

.page-home .lineup-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-home .lineup-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 11px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--obsidian);
}

.page-home .lineup-list li:last-child { margin-bottom: 0; }

.page-home .lineup-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .76em;
  width: 9px;
  height: 1px;
  background: var(--amber);
}

/* ============ 分流入口 ============ */

.page-home .routes {
  list-style: none;
  margin: clamp(22px, 2.8vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}

.page-home .route-card {
  background: var(--carbon);
  padding: clamp(20px, 2.4vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: background-color .18s ease;
}

.page-home .route-card:hover { background: var(--grayblue); }

.page-home .route-card__no {
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--amber);
}

.page-home .route-card__title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 18px;
  line-height: 1.45;
  margin: 0;
  color: var(--paper);
}

.page-home .route-card__body {
  margin: 0;
  flex: 1;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-home .route-card__link {
  align-self: flex-start;
  font-size: 14px;
}

/* ============ 三步路径 ============ */

.page-home .steps {
  list-style: none;
  margin: clamp(22px, 2.8vw, 30px) 0 16px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
}

.page-home .step {
  background: var(--carbon);
  padding: clamp(18px, 2.2vw, 26px);
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.page-home .step__no {
  flex: 0 0 auto;
  font-size: 22px;
  line-height: 1;
  letter-spacing: .04em;
  color: var(--gold);
}

.page-home .step__label {
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
}

.page-home .step-note {
  font-size: 13.5px;
  line-height: 1.8;
  max-width: 42em;
  margin: 0 0 clamp(22px, 2.8vw, 30px);
}

/* ============ 更新摘要 ============ */

.page-home .release-list {
  display: grid;
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
  margin-top: clamp(22px, 2.8vw, 32px);
}

.page-home .release-list .disclosure {
  background: var(--carbon);
  scroll-margin-top: calc(var(--header-h) + 24px);
  transition: background-color .18s ease;
}

.page-home .release-list .disclosure:target {
  background: var(--grayblue);
  box-shadow: inset 3px 0 0 var(--amber);
}

.page-home .release-list .disclosure__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(16px, 2.2vw, 26px);
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-home .release-list .disclosure__summary::-webkit-details-marker { display: none; }

.page-home .release-list .disclosure__summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  color: var(--amber);
}

.page-home .release-list .disclosure[open] .disclosure__summary::after { content: "–"; }

.page-home .release-list .disclosure__body {
  padding: 0 clamp(16px, 2.2vw, 26px) 20px;
}

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

.page-home .release-points li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 9px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
}

.page-home .release-points li:last-child { margin-bottom: 0; }

.page-home .release-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 7px;
  height: 1px;
  background: var(--amber);
}

/* ============ 服务与联系 ============ */

.page-home .support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ink-line);
  border: 1px solid var(--ink-line);
  margin-top: clamp(22px, 2.8vw, 30px);
}

.page-home .support-panel {
  background: var(--carbon);
  padding: clamp(18px, 2.2vw, 26px);
}

.page-home .support-panel__lead {
  font-family: var(--font-mono);
  font-size: 15.5px;
  line-height: 1.6;
  margin: 8px 0 8px;
  color: var(--gold);
  word-break: break-word;
}

.page-home .support-panel__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
}

.page-home .support-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: clamp(18px, 2.2vw, 24px) 0 0;
  font-size: 14px;
}

.page-home .support-more__sep { color: var(--ink-line); }

.page-home .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 30px);
  margin-top: clamp(30px, 3.6vw, 44px);
  padding-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--ink-line);
}

.page-home .stat__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(26px, 3.2vw, 36px);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .stat__unit {
  font-size: .55em;
  font-weight: 500;
  color: var(--amber);
  letter-spacing: .02em;
}

.page-home .stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--mist);
}

.page-home .support-tail {
  margin: clamp(26px, 3.2vw, 36px) 0 0;
  font-size: 13.5px;
  line-height: 1.85;
  max-width: 44em;
}

/* ============ 响应式 ============ */

@media (min-width: 720px) {
  .page-home .routes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (min-width: 860px) {
  .page-home .support-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .page-home .hero-window__body {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-home .sidebar-col.home-side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
}

@media (min-width: 1080px) {
  .page-home .support-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-home .hero-window__frame::before { display: none; }
  .page-home .hero-window__scale { left: 10px; right: 10px; }
}

@media (max-width: 420px) {
  .page-home .hero-plate__no { font-size: 58px; }
  .page-home .stats { grid-template-columns: 1fr; }
  .page-home .support-more { flex-direction: column; align-items: flex-start; gap: 6px; }
  .page-home .support-more__sep { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-rail .timeline__link,
  .page-home .home-rail .timeline__node,
  .page-home .home-rail .timeline__title,
  .page-home .route-card,
  .page-home .release-list .disclosure {
    transition: none;
  }
}
<<<END>>>