.page-home {
  --home-arch: 22%;
  background: var(--yak);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏门形 ---------- */
.page-home .gate-hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(3rem, 7vw, 6rem);
  background:
    radial-gradient(120% 85% at 88% 0%, rgba(46, 123, 196, .18), transparent 62%),
    var(--yak);
}

.page-home .gate-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 2.5rem);
}

.page-home .gate-hero__crumb {
  grid-column: 1 / -1;
  font-size: .8rem;
  color: var(--muted);
}

.page-home .gate-hero__crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
}

.page-home .gate-hero .display {
  margin: .85rem 0 0;
  font-size: clamp(2.05rem, 6.4vw, 4.1rem);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-home .gate-hero__lead {
  max-width: 34em;
  margin: 1.35rem 0 0;
  font-size: 1.0625rem;
  line-height: 1.95;
  color: var(--muted);
}

.page-home .gate-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: 1.85rem;
}

.page-home .gate-hero__portal {
  margin: 0;
}

.page-home .portal-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--gold);
  border-radius: 50% 50% var(--radius) var(--radius) / var(--home-arch) var(--home-arch) var(--radius) var(--radius);
  box-shadow: 0 18px 42px rgba(11, 60, 140, .18);
  background: var(--cobalt-deep);
}

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

.page-home .portal-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .45;
  background-image:
    repeating-linear-gradient(118deg, rgba(247, 242, 232, .09) 0 1px, transparent 1px 10px),
    radial-gradient(rgba(247, 242, 232, .55) 0.5px, transparent 0.6px);
  background-size: auto, 7px 7px;
}

.page-home .portal-frame__door {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 52%;
  pointer-events: none;
  transition: transform var(--dur) var(--ease);
}

.page-home .portal-frame__door--left {
  left: 0;
  background: linear-gradient(90deg, rgba(11, 60, 140, .55), rgba(11, 60, 140, 0));
}

.page-home .portal-frame__door--right {
  right: 0;
  background: linear-gradient(270deg, rgba(11, 60, 140, .55), rgba(11, 60, 140, 0));
}

.page-home .portal-frame:hover .portal-frame__door--left,
.page-home .portal-frame:focus-within .portal-frame__door--left {
  transform: translateX(-8px);
}

.page-home .portal-frame:hover .portal-frame__door--right,
.page-home .portal-frame:focus-within .portal-frame__door--right {
  transform: translateX(8px);
}

/* ---------- 四栏目录地图 ---------- */
.page-home .map {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-home .map__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 2.5rem);
  margin-top: clamp(1.75rem, 4vw, 3rem);
}

.page-home .map__figure {
  margin: 0;
}

.page-home .map__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

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

.page-home .map__item {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--hair);
}

.page-home .map__item:last-child {
  border-bottom: 1px solid var(--hair);
}

.page-home .map__num {
  padding-top: .3rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-home .map__link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.page-home .map__name {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--cobalt-deep);
}

.page-home .map__item--current .map__name::before {
  content: "";
  display: inline-block;
  width: .5rem;
  height: .5rem;
  margin-right: .55rem;
  vertical-align: .08em;
  border-radius: 50%;
  background: var(--saffron);
}

.page-home .map__desc {
  display: block;
  max-width: 46ch;
  margin: .4rem 0 .6rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .map__go {
  display: inline-block;
  font-size: .85rem;
  color: var(--cobalt-mid);
  border-bottom: 1px solid var(--gold-line);
}

.page-home .map__link:hover .map__name,
.page-home .map__link:focus-visible .map__name {
  color: var(--cobalt-bright);
}

/* ---------- 当季版与内容中心并置 ---------- */
.page-home .season .section-head__title {
  color: var(--on-deep);
}

.page-home .season .section-head__desc {
  color: var(--on-deep-dim);
}

.page-home .season .section-head__index {
  color: var(--gold);
}

.page-home .season__pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 3.5vw, 2.25rem);
  margin-top: clamp(1.75rem, 4vw, 3rem);
}

.page-home .season-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}

.page-home .season-card--info {
  background: var(--sky);
  border-color: rgba(20, 84, 158, .18);
}

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

.page-home .season-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: .95rem;
  padding: clamp(1.25rem, 3vw, 2rem);
}

.page-home .season-card__title {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--cobalt-deep);
}

.page-home .season-card__body p {
  margin: 0;
  font-size: .975rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-home .season-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-home .season-card__list li {
  display: flex;
  gap: .65rem;
  font-size: .925rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-home .season-card__list li::before {
  content: "";
  flex: 0 0 auto;
  width: .5rem;
  height: .5rem;
  margin-top: .58rem;
  border-radius: 50%;
  border: 1px solid var(--gold);
}

.page-home .season-card__foot {
  margin-top: auto;
  padding-top: .6rem;
}

/* ---------- 小屏六步 ---------- */
.page-home .mobile-guide {
  background: var(--sky);
}

.page-home .mobile-guide__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3rem);
}

.page-home .step-track {
  display: flex;
  gap: 6px;
  margin: 1.75rem 0 1.25rem;
}

.page-home .step-track__seg {
  flex: 1 1 0;
  height: 3px;
  background: rgba(46, 123, 196, .28);
}

.page-home .step-track__seg.is-current {
  background: var(--saffron);
}

.page-home .step-track__seg.is-done {
  background: var(--saffron);
}

.page-home .gate-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .7rem;
}

.page-home .gate-step {
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--surface);
  transition: border-color var(--dur) var(--ease);
}

.page-home .gate-step:has(details[open]) {
  border-left: 3px solid var(--saffron);
}

.page-home .gate-step details {
  height: 100%;
}

.page-home .gate-step__head {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .85rem .95rem;
  font-size: .95rem;
  font-weight: 600;
  color: var(--cobalt-deep);
  cursor: pointer;
  list-style: none;
}

.page-home .gate-step__head::-webkit-details-marker {
  display: none;
}

.page-home .gate-step__name {
  line-height: 1.5;
}

.page-home .gate-step__desc {
  margin: 0;
  padding: 0 .95rem 1rem;
  font-size: .875rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .mobile-guide__figure {
  margin: 0;
  justify-self: center;
}

.page-home .mobile-guide__figure img {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  border: 1px solid var(--gold-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

/* ---------- 信任与联络 ---------- */
.page-home .trust {
  background: var(--yak);
  border-top: 1px solid var(--gold-faint);
}

.page-home .trust__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3rem);
}

.page-home .metric-row {
  list-style: none;
  margin: 1.85rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem 1rem;
}

.page-home .metric {
  padding-left: .9rem;
  border-left: 1px solid var(--gold-line);
}

.page-home .metric__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--cobalt-deep);
}

.page-home .metric__label {
  display: block;
  margin-top: .3rem;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--muted);
}

.page-home .trust__contact {
  padding: clamp(1.35rem, 3vw, 2rem);
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}

.page-home .trust__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-home .trust__mail {
  display: block;
  margin: .6rem 0 1.1rem;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2.6vw, 1.05rem);
  color: var(--cobalt-deep);
  word-break: break-all;
}

.page-home .trust__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
}

.page-home .trust__note {
  margin: 1rem 0 0;
  font-size: .875rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-home .trust__meta {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--hair);
  font-size: .875rem;
  line-height: 2;
  color: var(--muted);
}

.page-home .trust__meta span {
  font-family: var(--font-mono);
  color: var(--ink);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 640px) {
  .page-home .gate-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-home .gate-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: clamp(2rem, 5vw, 4.5rem);
  }

  .page-home .gate-hero__copy {
    grid-column: 1;
  }

  .page-home .gate-hero__portal {
    grid-column: 2;
  }

  .page-home .map__body {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-home .map__item:nth-child(even) {
    margin-left: 2.25rem;
  }

  .page-home .season__pair {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-home .mobile-guide__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 4.5rem);
  }

  .page-home .gate-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .trust__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(2rem, 5vw, 4.5rem);
  }
}

@media (min-width: 1200px) {
  .page-home .mobile-guide__figure {
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .portal-frame__door,
  .page-home .gate-step {
    transition: none;
  }
}
<<<END>>>