.page-home {
  --home-gutter: clamp(1rem, 4vw, 2.5rem);
  --home-cyan-soft: rgba(43, 240, 210, 0.14);
  --home-amber-soft: rgba(255, 178, 91, 0.12);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 3.5rem) 0 0;
}

.page-home .home-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -3;
  overflow: hidden;
}

.page-home .home-hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 40%;
  opacity: 0.42;
  transform: scale(1.04);
}

.page-home .home-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 10, 20, 0.6) 0%, rgba(5, 10, 20, 0.92) 68%, var(--ink-900) 100%),
    linear-gradient(100deg, var(--ink-900) 12%, rgba(5, 10, 20, 0.3) 62%, transparent 100%);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    repeating-linear-gradient(90deg, var(--line-blue) 0 1px, transparent 1px 86px),
    repeating-linear-gradient(0deg, var(--line-blue) 0 1px, transparent 1px 86px);
  opacity: 0.5;
  -webkit-mask-image: radial-gradient(115% 85% at 26% 18%, #000 22%, transparent 76%);
  mask-image: radial-gradient(115% 85% at 26% 18%, #000 22%, transparent 76%);
  pointer-events: none;
}

.page-home .home-hero .container {
  position: relative;
}

.page-home .home-hero .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 clamp(1.5rem, 4vw, 2.75rem);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

.page-home .home-hero .breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-home .home-hero .breadcrumbs li + li::before {
  content: "/";
  color: var(--line-blue);
}

.page-home .home-hero .breadcrumbs a {
  color: var(--text-soft);
  text-decoration: none;
}

.page-home .home-hero .breadcrumbs a:hover {
  color: var(--cyan);
}

.page-home .home-hero-inner {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
  grid-template-columns: minmax(0, 1fr);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}

.page-home .title-line {
  display: block;
}

.page-home .home-hero h1 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2.6rem, 8.5vw, 5.4rem);
  line-height: 0.94;
  letter-spacing: -0.045em;
  font-weight: 900;
  text-wrap: balance;
}

.page-home .title-line--accent {
  background: linear-gradient(102deg, var(--cyan) 0%, #A8E8DF 46%, var(--amber) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.page-home .home-hero-lede {
  max-width: 34ch;
  margin: 0 0 1.75rem;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-home .home-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

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

.page-home .hero-rail::before {
  content: "";
  position: absolute;
  inset: -18% -12%;
  z-index: -1;
  background: linear-gradient(
    108deg,
    transparent 36%,
    rgba(43, 240, 210, 0.2) 46%,
    rgba(255, 178, 91, 0.15) 53%,
    transparent 64%
  );
  transform: rotate(-6deg);
  filter: blur(7px);
  pointer-events: none;
}

.page-home .rail-panel {
  position: relative;
  display: grid;
  gap: 0.35rem;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-line);
  background: linear-gradient(158deg, var(--glass-bg-strong), rgba(13, 23, 41, 0.94));
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-float);
}

.page-home .rail-label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--text-soft);
}

.page-home .rail-version {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 9vw, 4.25rem);
  line-height: 1;
  letter-spacing: -0.06em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-home .rail-meta {
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.page-home .rail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.9rem 0 0;
  padding: 0;
  list-style: none;
}

.page-home .rail-tags li {
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--glass-line);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

.page-home .rail-link {
  display: inline-block;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}

.page-home .rail-link:hover {
  border-bottom-color: var(--cyan);
}

.page-home .hero-index {
  border-top: 1px solid var(--line-blue);
  border-bottom: 1px solid var(--line-blue);
  background: rgba(10, 20, 36, 0.62);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-home .index-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 1.25rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1.1rem var(--home-gutter);
  list-style: none;
}

.page-home .index-list li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  min-width: 0;
}

.page-home .idx-num {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-home .idx-label {
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

/* ---------- 通用小节头 ---------- */
.page-home .home-sec-head {
  max-width: 60ch;
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .home-sec-head h2 {
  margin: 0.45rem 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.page-home .home-sec-head .lede,
.page-home .steps-copy .lede,
.page-home .scale-lead p {
  color: var(--text-soft);
  max-width: 56ch;
}

/* ---------- 栏目轨道 ---------- */
.page-home .home-track {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
  overflow: hidden;
}

.page-home .track-scroller {
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding: 0.25rem var(--home-gutter) 1.5rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line-blue) transparent;
}

.page-home .track-scroller::-webkit-scrollbar {
  height: 6px;
}

.page-home .track-scroller::-webkit-scrollbar-thumb {
  background: var(--line-blue);
  border-radius: var(--radius-pill);
}

.page-home .track {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  width: max-content;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .track-card {
  --card-accent: var(--cyan);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 0 0 min(78vw, 330px);
  scroll-snap-align: start;
  padding: 1.5rem 1.35rem 1.35rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(176deg, rgba(168, 196, 224, 0.1), rgba(13, 23, 41, 0.95) 62%);
  box-shadow: inset 0 1px 0 rgba(168, 196, 224, 0.1);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-home .track-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: linear-gradient(90deg, var(--card-accent), transparent 92%);
  opacity: 0.9;
}

.page-home .track-card:nth-child(1) { --card-accent: #2BF0D2; }
.page-home .track-card:nth-child(2) { --card-accent: #30DCD1; }
.page-home .track-card:nth-child(3) { --card-accent: #46C5BE; }
.page-home .track-card:nth-child(4) { --card-accent: #FFB25B; }
.page-home .track-card:nth-child(5) { --card-accent: #EFA052; }
.page-home .track-card:nth-child(6) { --card-accent: #C97A2B; }

.page-home .track-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 44px -32px rgba(0, 0, 0, 0.95);
}

.page-home .track-num {
  font-family: var(--font-mono);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px var(--card-accent);
  font-variant-numeric: tabular-nums;
}

.page-home .track-title {
  margin: 0;
  font-size: 1.375rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-home .track-title a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-home .track-title a:hover {
  color: var(--card-accent);
}

.page-home .track-desc {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--text-soft);
}

.page-home .track-figure {
  margin: 0.15rem 0 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-blue);
  overflow: hidden;
}

.page-home .track-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.page-home .track-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: auto 0 0;
  padding: 0.6rem 0 0;
  list-style: none;
}

.page-home .track-tags li {
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-blue);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--card-accent);
}

/* ---------- 三步路径 ---------- */
.page-home .home-steps {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .steps-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .step-stack {
  position: relative;
  margin-top: 1.75rem;
}

.page-home .steps-line {
  position: absolute;
  left: 0.25rem;
  top: 1.9rem;
  width: 1.5rem;
  height: calc(100% - 3.8rem);
  overflow: visible;
  pointer-events: none;
}

.page-home .step-list {
  position: relative;
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  position: relative;
}

.page-home .step-dot {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--cyan);
  background: var(--ink-800);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
}

.page-home .step-body {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-blue);
  background: rgba(13, 23, 41, 0.74);
  transition: border-color 0.25s var(--ease);
}

.page-home .step-body[open] {
  border-color: rgba(43, 240, 210, 0.34);
}

.page-home .step-body summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  cursor: pointer;
  list-style: none;
}

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

.page-home .step-body summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--cyan);
}

.page-home .step-body[open] summary::after {
  content: "\2013";
}

.page-home .step-body[open] summary {
  margin-bottom: 0.55rem;
}

.page-home .step-name {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-home .step-hint {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

.page-home .step-panel p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-home .steps-media {
  margin: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-blue);
  overflow: hidden;
  align-self: start;
}

.page-home .steps-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  object-position: center;
}

/* ---------- 版本面板 ---------- */
.page-home .home-version {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .version-panel {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.25rem, 3vw, 2rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-line);
  background:
    radial-gradient(120% 130% at 0% 0%, rgba(43, 240, 210, 0.1), transparent 55%),
    linear-gradient(152deg, rgba(168, 196, 224, 0.1), rgba(10, 20, 36, 0.95) 58%);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.page-home .version-media {
  margin: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-blue);
  overflow: hidden;
}

.page-home .version-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-home .version-body h2 {
  margin: 0.45rem 0 0.85rem;
  font-size: clamp(1.6rem, 3.6vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.page-home .version-body > p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--text-soft);
  max-width: 56ch;
}

.page-home .version-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 1.25rem;
  margin: 1.35rem 0;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line-blue);
  border-bottom: 1px solid var(--line-blue);
}

.page-home .version-facts dt {
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

.page-home .version-facts dd {
  margin: 0.28rem 0 0;
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.page-home .version-note {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.72;
  color: var(--text-soft);
  max-width: 56ch;
}

.page-home .version-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
}

.page-home .version-tags li {
  padding: 0.3rem 0.72rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 178, 91, 0.32);
  background: var(--home-amber-soft);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--amber);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-home .version-panel:hover .version-tags li,
.page-home .version-panel:focus-within .version-tags li {
  background: rgba(255, 178, 91, 0.2);
  border-color: rgba(255, 178, 91, 0.52);
}

/* ---------- 近期更新 ---------- */
.page-home .home-updates {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .update-list {
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-blue);
}

.page-home .update-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.35rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line-blue);
}

.page-home .update-time {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.07em;
  color: var(--amber);
}

.page-home .update-link {
  font-size: 1.0625rem;
  line-height: 1.5;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  justify-self: start;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .update-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-home .update-tag {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--text-soft);
}

/* ---------- 运营规模 ---------- */
.page-home .home-scale {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .scale-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  grid-template-columns: minmax(0, 1fr);
}

.page-home .scale-lead h2 {
  margin: 0.45rem 0 0.85rem;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.page-home .scale-lead p {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  line-height: 1.82;
}

.page-home .scale-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem clamp(1rem, 3vw, 1.75rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .scale-stat {
  padding: 1.1rem 0;
  border-top: 1px solid var(--line-blue);
  min-width: 0;
}

.page-home .scale-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.045em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.page-home .scale-num em {
  margin-left: 0.15em;
  font-style: normal;
  font-size: 0.52em;
  color: var(--cyan);
}

.page-home .scale-label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

/* ---------- 联络带 ---------- */
.page-home .home-reach {
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .contact-band {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-line);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(43, 240, 210, 0.16), transparent 56%),
    radial-gradient(90% 120% at 0% 100%, rgba(255, 178, 91, 0.1), transparent 60%),
    linear-gradient(160deg, rgba(10, 20, 36, 0.96), rgba(5, 10, 20, 0.98));
}

.page-home .contact-copy h2 {
  margin: 0.45rem 0 0.85rem;
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.page-home .contact-copy p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-soft);
  max-width: 52ch;
}

.page-home .contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.page-home .contact-meta {
  flex: 1 1 100%;
  margin: 0.25rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--text-soft);
}

.page-home .home-footnote {
  margin: 1.5rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-home .home-footnote a {
  margin: 0 0.15rem;
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line-blue);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .home-footnote a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 760px) {
  .page-home .index-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .page-home .update-item {
    grid-template-columns: 6rem minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 1rem;
  }

  .page-home .version-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .home-hero-inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-home .hero-rail {
    align-self: center;
  }

  .page-home .track-card {
    flex: 0 0 21.5rem;
  }

  .page-home .steps-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-home .version-panel {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: center;
  }

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

  .page-home .contact-band {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
  }

  .page-home .contact-meta {
    flex: 0 1 auto;
  }
}

@media (min-width: 1344px) {
  .page-home .track-scroller {
    padding-left: calc((100vw - 1280px) / 2 + var(--home-gutter));
  }
}

@media (max-width: 420px) {
  .page-home .track-card {
    flex: 0 0 84vw;
  }

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

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

@media (prefers-reduced-motion: reduce) {
  .page-home .track-card,
  .page-home .home-hero-bg img,
  .page-home .version-tags li,
  .page-home .update-link,
  .page-home .home-footnote a {
    transition: none;
  }

  .page-home .track-card:hover {
    transform: none;
  }
}
<<<END>>>