.page-home {
  --ph-ink-gold: #8a6a0e;
  background: var(--canal-deep);
  color: var(--paper);
}

/* ---------- 首屏：长卷入口带 ---------- */
.page-home .hero-band {
  position: relative;
  overflow: hidden;
  padding: 0 0 clamp(2.2rem, 5vw, 3.4rem);
}

.page-home .hero-band__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .hero-band__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.72;
}

.page-home .hero-band__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 27, 38, 0.88) 0%, rgba(10, 27, 38, 0.62) 44%, var(--canal-deep) 100%),
    radial-gradient(120% 90% at 16% 6%, rgba(79, 179, 170, 0.18), transparent 62%);
}

.page-home .hero-band__inner {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--header-h) + clamp(2.4rem, 7vw, 5rem));
}

.page-home .ph-context {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 clamp(1rem, 2vw, 1.5rem);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--champagne);
  opacity: 0.85;
}

.page-home .ph-context__dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--coral);
}

.page-home .hero-band__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5.6vw, 3.8rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-home .hero-band__lede {
  margin: clamp(1rem, 2vw, 1.4rem) 0 0;
  max-width: 52ch;
  font-size: var(--step-0);
  line-height: 1.8;
  color: rgba(245, 241, 230, 0.82);
}

.page-home .entry-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(266px, 1fr);
  gap: clamp(14px, 2vw, 20px);
  margin-top: clamp(2rem, 4vw, 3rem);
  padding: 4px 2px 18px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

.page-home .entry-arch {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 0;
  scroll-snap-align: start;
  padding: clamp(1.5rem, 3vw, 2.1rem) clamp(1.1rem, 2.2vw, 1.6rem) clamp(1.2rem, 2.2vw, 1.5rem);
  border: 1px solid var(--line);
  border-top: 2px solid var(--line-strong);
  border-radius: var(--radius-arch) var(--radius-arch) 16px 16px;
  background: linear-gradient(180deg, rgba(28, 59, 71, 0.78) 0%, rgba(17, 49, 46, 0.92) 100%);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-home .entry-arch::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  border: 1px solid var(--gold);
  opacity: 0;
  transform: scale(0.965);
  pointer-events: none;
  transition: opacity 0.34s var(--ease), transform 0.34s var(--ease);
}

.page-home .entry-arch:hover,
.page-home .entry-arch:focus-visible {
  border-color: var(--line-strong);
}

.page-home .entry-arch:hover::after,
.page-home .entry-arch:focus-visible::after {
  opacity: 0.9;
  transform: scale(1.02);
}

.page-home .entry-arch__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-home .entry-arch__title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
  font-weight: 700;
  line-height: 1.32;
  color: var(--champagne);
}

.page-home .entry-arch__desc {
  font-size: 15px;
  line-height: 1.72;
  color: rgba(245, 241, 230, 0.78);
}

.page-home .entry-arch__more {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--aqua);
  transition: max-height 0.34s var(--ease), opacity 0.34s var(--ease), margin-top 0.34s var(--ease);
}

.page-home .entry-arch:hover .entry-arch__more,
.page-home .entry-arch:focus-visible .entry-arch__more {
  max-height: 6rem;
  margin-top: 0.45rem;
  opacity: 1;
}

/* ---------- 通用区块 ---------- */
.page-home .ph-section {
  padding: clamp(2.8rem, 6vw, 5rem) 0;
  border-top: 1px solid var(--line-soft);
}

.page-home .ph-section--green { background: var(--canal-green); }
.page-home .ph-section--slate { background: var(--slate-blue); }
.page-home .ph-section--purple { background: var(--night-purple); }

.page-home .ph-section--paper {
  background: var(--paper);
  color: var(--ink);
  border-top-color: rgba(11, 18, 24, 0.12);
}

.page-home .ph-eyebrow {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.85rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-home .ph-eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 1px;
  background: currentColor;
}

.page-home .ph-section--paper .ph-eyebrow { color: var(--ph-ink-gold); }

.page-home .ph-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-3);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-home .ph-lede {
  margin: 0.9rem 0 0;
  max-width: 56ch;
  font-size: var(--step-0);
  line-height: 1.8;
  color: rgba(245, 241, 230, 0.8);
}

.page-home .ph-section--paper .ph-lede { color: rgba(11, 18, 24, 0.72); }

.page-home .ph-link {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  margin-top: 0.35rem;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 500;
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 179, 170, 0.42);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-home .ph-link:hover,
.page-home .ph-link:focus-visible {
  color: var(--champagne);
  border-bottom-color: var(--champagne);
}

.page-home .ph-link--inline { margin: 0; align-self: auto; }

/* ---------- 四类入口 ---------- */
.page-home .entry-grid {
  display: grid;
  gap: clamp(14px, 2.2vw, 22px);
  margin-top: clamp(1.8rem, 3.5vw, 2.8rem);
}

.page-home .entry-item {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: clamp(1.15rem, 2.4vw, 1.6rem);
  border: 1px solid var(--line-soft);
  border-radius: 4px 4px 18px 18px;
  background: rgba(10, 27, 38, 0.52);
  transition: border-color 0.3s var(--ease);
}

.page-home .entry-item:hover { border-color: var(--line-strong); }

.page-home .entry-item__num {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-home .entry-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--champagne);
}

.page-home .entry-item__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(245, 241, 230, 0.78);
}

/* ---------- 第12版速览 ---------- */
.page-home .ver-layout {
  display: grid;
  gap: clamp(1.6rem, 3vw, 2.6rem);
  margin-top: clamp(1.8rem, 3.5vw, 2.6rem);
}

.page-home .ver-rail__figure {
  margin: 0 0 1.3rem;
  max-width: 260px;
  overflow: hidden;
  border: 1px solid rgba(11, 18, 24, 0.14);
  border-radius: var(--radius-arch) var(--radius-arch) 14px 14px;
  background: var(--canal-deep);
}

.page-home .ver-rail__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-home .ver-rail__label {
  margin: 0 0 0.6rem;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(11, 18, 24, 0.5);
}

.page-home .ver-toc {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(11, 18, 24, 0.14);
}

.page-home .ver-toc li { border-bottom: 1px solid rgba(11, 18, 24, 0.1); }

.page-home .ver-toc__link {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.6rem 0;
  font-size: 14px;
  color: rgba(11, 18, 24, 0.78);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-home .ver-toc__link .mono {
  font-size: 12px;
  color: var(--ph-ink-gold);
}

.page-home .ver-toc__link:hover,
.page-home .ver-toc__link:focus-visible { color: var(--ink); }

.page-home .ver-rail__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(11, 18, 24, 0.6);
}

.page-home .ph-fold {
  scroll-margin-top: calc(var(--header-h) + 20px);
  border-bottom: 1px solid rgba(11, 18, 24, 0.14);
}

.page-home .ph-fold__head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 1rem 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.9vw, 1.24rem);
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.page-home .ph-fold__head::-webkit-details-marker { display: none; }

.page-home .ph-fold__index {
  flex: 0 0 auto;
  width: 2rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ph-ink-gold);
}

.page-home .ph-fold__title { flex: 1 1 auto; min-width: 0; }

.page-home .ph-fold__sign {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  width: 18px;
  height: 18px;
}

.page-home .ph-fold__sign::before,
.page-home .ph-fold__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 12px;
  height: 1.5px;
  background: var(--ph-ink-gold);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.page-home .ph-fold__sign::after { transform: translate(-50%, -50%) rotate(90deg); }

.page-home .ph-fold[open] .ph-fold__sign::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-home .ph-fold__body {
  padding: 0 0 1.15rem calc(2rem + 0.9rem);
}

.page-home .ph-fold__body p {
  margin: 0 0 0.7rem;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(11, 18, 24, 0.74);
}

.page-home .ph-fold__body p:last-child { margin-bottom: 0; }

/* ---------- 近期回声 ---------- */
.page-home .echo-grid {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
  margin-top: clamp(1.8rem, 3.5vw, 2.6rem);
}

.page-home .echo-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--line-soft);
  border-radius: 4px 4px 18px 18px;
  background: rgba(10, 27, 38, 0.44);
}

.page-home .echo-card__figure {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-arch) var(--radius-arch) 0 0;
}

.page-home .echo-card__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-home .echo-card__body {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1.05rem, 2.4vw, 1.5rem);
}

.page-home .echo-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.page-home .echo-meta__time {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--champagne);
  opacity: 0.82;
}

.page-home .echo-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.24rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-home .echo-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(245, 241, 230, 0.78);
}

.page-home .echo-more {
  margin-top: 0.3rem;
  border-top: 1px dashed var(--line);
  padding-top: 0.6rem;
}

.page-home .echo-more__sum {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--aqua);
  cursor: pointer;
  list-style: none;
}

.page-home .echo-more__sum::-webkit-details-marker { display: none; }

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

.page-home .echo-more[open] .echo-more__sum::after { content: " −"; }

.page-home .echo-more__text {
  margin: 0.6rem 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 241, 230, 0.72);
}

/* ---------- 两步路径 ---------- */
.page-home .step-list {
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
  margin: clamp(1.8rem, 3.5vw, 2.6rem) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .step-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: clamp(1.2rem, 2.6vw, 1.7rem);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--gold);
  border-radius: 2px 16px 16px 2px;
  background: linear-gradient(120deg, rgba(28, 59, 71, 0.6) 0%, rgba(10, 27, 38, 0.28) 100%);
}

.page-home .step-item__num {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1;
  color: var(--gold);
  opacity: 0.85;
}

.page-home .step-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.36;
  color: var(--champagne);
}

.page-home .step-item__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 241, 230, 0.78);
}

.page-home .path-note {
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(245, 241, 230, 0.68);
}

/* ---------- 服务与支持 ---------- */
.page-home .support-split {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.6rem);
  align-items: start;
}

.page-home .support-figure {
  margin: 0;
  max-width: 320px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px 999px 20px 20px;
  background: var(--canal-deep);
}

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

.page-home .support-body { min-width: 0; }

.page-home .support-list {
  margin: clamp(1.2rem, 2.4vw, 1.6rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-home .support-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.6;
  color: rgba(245, 241, 230, 0.86);
  word-break: break-word;
}

.page-home .support-list__key {
  flex: 0 0 auto;
  min-width: 3rem;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.3rem, 2.6vw, 1.8rem);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .echo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .step-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 760px) {
  .page-home .entry-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-home .support-split { grid-template-columns: minmax(0, 240px) minmax(0, 1fr); }
  .page-home .echo-card--lead { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: stretch; }
  .page-home .echo-card--lead .echo-card__figure { height: 100%; border-radius: var(--radius-arch) 0 0 var(--radius-arch); }
  .page-home .echo-card--lead .echo-card__figure img { height: 100%; }
}

@media (min-width: 900px) {
  .page-home .entry-rail {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }

  .page-home .ver-layout {
    grid-template-columns: minmax(200px, 250px) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.6rem);
  }

  .page-home .ver-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
    align-self: start;
  }
}

@media (min-width: 1080px) {
  .page-home .entry-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-home .hero-band__title { max-width: 18ch; }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry-arch,
  .page-home .entry-arch::after,
  .page-home .entry-arch__more,
  .page-home .ph-link,
  .page-home .ver-toc__link {
    transition: none;
  }
}
<<<END>>>