.page-home {
  --home-pad-y: clamp(2.75rem, 6vw, 5.5rem);
  --home-gap: clamp(1.25rem, 3vw, 2.5rem);
  --home-line: rgba(169, 180, 194, .22);
  --home-ink-soft: rgba(7, 19, 34, .74);
  background: var(--c-navy);
}

/* ---------- 面包屑 ---------- */
.page-home .home-crumb {
  padding-top: clamp(.9rem, 2vw, 1.4rem);
  padding-bottom: .4rem;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.5rem, 3vw, 2.5rem) var(--home-pad-y);
  color: var(--c-text);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(169, 180, 194, .1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(169, 180, 194, .1) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(120% 90% at 18% 8%, #000 18%, transparent 76%);
  mask-image: radial-gradient(120% 90% at 18% 8%, #000 18%, transparent 76%);
  pointer-events: none;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  top: -22%;
  right: -14%;
  width: min(62vw, 620px);
  aspect-ratio: 1;
  background: radial-gradient(circle at 50% 50%, rgba(255, 107, 53, .3), transparent 62%);
  filter: blur(8px);
  pointer-events: none;
}

.page-home .home-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .home-hero__coord {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .2em;
  color: var(--c-mint);
}

.page-home .home-hero__coord-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-mint);
  box-shadow: 0 0 0 5px rgba(46, 196, 182, .16);
}

.page-home .home-hero__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.45rem, 9vw, 5.2rem);
  line-height: .97;
  letter-spacing: -.02em;
  color: var(--c-paper);
}

.page-home .home-hero__title span {
  color: var(--c-signal);
}

.page-home .home-hero__desc {
  max-width: 46ch;
  margin: 0 0 1.6rem;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: rgba(247, 244, 236, .82);
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
}

.page-home .home-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem 1.75rem;
  margin: 1.6rem 0 0;
  padding: 1.1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--home-line);
  font-size: var(--fs-micro);
  letter-spacing: .04em;
  color: var(--c-text-dim);
}

.page-home .home-hero__fact-num {
  margin-right: .3rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c-mint);
}

.page-home .home-hero__visual {
  position: relative;
  padding: clamp(.9rem, 2.5vw, 2rem) 0;
}

.page-home .home-hero__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-l);
  opacity: .5;
  filter: saturate(.95);
}

.page-home .home-hero__route {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .85;
  pointer-events: none;
}

.page-home .home-hero__cards {
  position: relative;
  z-index: 2;
  display: grid;
  gap: .7rem;
}

.page-home .home-hero__card {
  padding: .85rem 1rem;
  border: 1px solid rgba(169, 180, 194, .3);
  border-radius: var(--radius-m);
  background: rgba(19, 43, 77, .84);
  backdrop-filter: blur(6px);
  transition: transform .28s ease, border-color .28s ease;
}

.page-home .home-hero__card:nth-child(2) { margin-left: 7%; }
.page-home .home-hero__card:nth-child(3) { margin-left: 14%; }

.page-home .home-hero__card:hover,
.page-home .home-hero__card:focus-within {
  transform: translateY(-4px);
  border-color: var(--c-signal);
}

.page-home .home-hero__card-time {
  margin: 0 0 .3rem;
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: .12em;
  color: var(--c-mint);
}

.page-home .home-hero__card-title {
  margin: 0 0 .5rem;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-home .home-hero__card-meta {
  margin: .5rem 0 0;
  font-size: var(--fs-micro);
  line-height: 1.6;
  color: var(--c-text-dim);
}

/* ---------- 版本对比 ---------- */
.page-home .home-versions .section-head__title { color: var(--c-ink); }
.page-home .home-versions .section-head__desc { color: var(--home-ink-soft); }

.page-home .home-versions__grid {
  display: grid;
  gap: 1rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-home .home-versions__col {
  padding: clamp(1.25rem, 3vw, 1.9rem);
  border-radius: var(--radius-m);
}

.page-home .home-versions__col--old {
  border: 1px solid rgba(7, 19, 34, .16);
  background: rgba(247, 244, 236, .7);
  color: var(--c-ink);
}

.page-home .home-versions__col--new {
  background: var(--c-navy);
  color: var(--c-text);
  border: 1px solid var(--c-navy-3);
  box-shadow: var(--shadow-card);
}

.page-home .home-versions__tag {
  margin: 0 0 .8rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  text-transform: uppercase;
}

.page-home .home-versions__col--old .home-versions__tag { color: var(--c-mint-deep); }
.page-home .home-versions__col--new .home-versions__tag { color: var(--c-mint); }

.page-home .home-versions__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  line-height: 1.35;
  letter-spacing: -.01em;
}

.page-home .home-versions__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .6rem;
  font-size: var(--fs-small);
  line-height: 1.7;
}

.page-home .home-versions__list li {
  position: relative;
  padding-left: 1.15rem;
}

.page-home .home-versions__list li::before {
  content: "/";
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  color: var(--c-signal);
}

.page-home .home-versions__col--old .home-versions__list { color: rgba(7, 19, 34, .78); }
.page-home .home-versions__col--new .home-versions__list { color: rgba(247, 244, 236, .82); }

.page-home .home-versions__stat {
  margin: 1.15rem 0 0;
  padding-top: .9rem;
  border-top: 1px dashed rgba(169, 180, 194, .4);
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  color: var(--c-mint);
}

.page-home .home-versions__media {
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
}

.page-home .home-versions__note {
  display: grid;
  gap: .9rem;
  padding: 1.1rem 1.25rem;
  border-left: 3px solid var(--c-signal);
  border-radius: 0 var(--radius-m) var(--radius-m) 0;
  background: rgba(11, 31, 58, .06);
  color: var(--c-ink);
}

.page-home .home-versions__note p {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.75;
}

.page-home .home-versions__note .btn { justify-self: start; }

/* ---------- 订阅步骤 ---------- */
.page-home .home-steps__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .5rem;
}

.page-home .home-step {
  border-top: 1px solid var(--home-line);
}

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

.page-home .home-step details {
  padding-block: .85rem;
}

.page-home .home-step__summary {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: .85rem;
  cursor: pointer;
  list-style: none;
}

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

.page-home .home-step__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: var(--c-mint);
  transition: color .2s ease;
}

.page-home .home-step details[open] .home-step__summary::after {
  content: "\2013";
  color: var(--c-signal);
}

.page-home .home-step__num {
  font-family: var(--font-mono);
  font-size: var(--fs-small);
  letter-spacing: .1em;
  color: var(--c-mist);
}

.page-home .home-step__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: rgba(169, 180, 194, .45);
  transition: background .25s ease, box-shadow .25s ease;
}

.page-home .home-step details[open] .home-step__dot {
  background: var(--c-signal);
  box-shadow: 0 0 0 6px rgba(255, 107, 53, .16);
}

.page-home .home-step__label {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-home .home-step__body {
  padding: .75rem 0 .35rem;
}

.page-home .home-step__body p {
  margin: 0;
  max-width: 64ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: rgba(247, 244, 236, .8);
}

/* ---------- 状态提示 ---------- */
.page-home .home-signals .section-head__title { color: var(--c-ink); }
.page-home .home-signals .section-head__desc { color: var(--home-ink-soft); }

.page-home .home-signals__grid {
  display: grid;
  gap: 1rem;
}

.page-home .home-signals__cards {
  display: grid;
  gap: .85rem;
}

.page-home .home-signals__card {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--c-navy-3);
  border-radius: var(--radius-m);
  background: var(--c-navy);
  color: var(--c-text);
  transition: transform .25s ease, border-color .25s ease;
}

.page-home .home-signals__card:hover {
  transform: translateY(-2px);
  border-color: var(--c-mint-deep);
}

.page-home .home-signals__card .card__index {
  margin: 0 0 .45rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .2em;
  color: var(--c-mint);
}

.page-home .home-signals__card .card__title {
  margin: 0 0 .5rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--c-paper);
}

.page-home .home-signals__card .card__text {
  margin: 0 0 .7rem;
  font-size: var(--fs-small);
  line-height: 1.75;
  color: rgba(247, 244, 236, .78);
}

.page-home .home-signals__link {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--c-signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, .45);
  padding-bottom: 2px;
}

.page-home .home-signals__link:hover { color: var(--c-signal-hi); }

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

.page-home .home-signals__foot {
  margin: clamp(1.25rem, 3vw, 1.9rem) 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(7, 19, 34, .14);
  font-size: var(--fs-small);
  line-height: 1.8;
  color: var(--home-ink-soft);
}

/* ---------- 城市主场 ---------- */
.page-home .home-zone__grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
}

.page-home .home-zone__index {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  color: var(--c-signal);
}

.page-home .home-zone__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--c-paper);
}

.page-home .home-zone__desc {
  margin: 0 0 1.1rem;
  max-width: 56ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: rgba(247, 244, 236, .8);
}

.page-home .home-zone__chips {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
}

.page-home .home-zone__chip {
  padding: .32rem .8rem;
  border: 1px solid var(--c-line-strong, rgba(169, 180, 194, .5));
  border-radius: 999px;
  font-size: var(--fs-small);
  color: var(--c-text);
}

.page-home .home-zone__chip--wide {
  border-color: var(--c-mint);
  color: var(--c-mint);
}

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

/* ---------- 收束行动 ---------- */
.page-home .home-cta {
  position: relative;
  overflow: hidden;
  padding-block: var(--home-pad-y);
  background: linear-gradient(125deg, var(--c-signal) 0%, #E24E17 52%, var(--c-navy-2) 100%);
  color: var(--c-paper);
}

.page-home .home-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(247, 244, 236, .22) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .35;
  pointer-events: none;
}

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

.page-home .home-cta__index {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .22em;
  color: rgba(247, 244, 236, .78);
}

.page-home .home-cta__title {
  margin: 0 0 .9rem;
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  line-height: 1.14;
  letter-spacing: -.02em;
}

.page-home .home-cta__desc {
  margin: 0 0 1.5rem;
  max-width: 60ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: rgba(247, 244, 236, .9);
}

.page-home .home-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

.page-home .home-cta .btn--signal {
  background: var(--c-void);
  color: var(--c-paper);
  border-color: var(--c-void);
}

.page-home .home-cta .btn--signal:hover {
  background: var(--c-navy-2);
  border-color: var(--c-navy-2);
}

.page-home .home-cta .btn--ghost {
  color: var(--c-paper);
  border-color: rgba(247, 244, 236, .55);
}

.page-home .home-cta .btn--ghost:hover {
  background: rgba(247, 244, 236, .14);
  border-color: var(--c-paper);
}

.page-home .home-cta__meta {
  margin: 1.4rem 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  line-height: 1.9;
  color: rgba(247, 244, 236, .82);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .home-versions__note {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: 1.04fr .96fr;
    align-items: center;
  }

  .page-home .home-hero__visual {
    padding: 0;
    min-height: 520px;
  }

  .page-home .home-hero__cards {
    position: absolute;
    inset: 0;
    align-content: center;
    gap: .9rem;
  }

  .page-home .home-hero__card {
    max-width: 92%;
  }

  .page-home .home-versions__grid {
    grid-template-columns: .92fr 1.08fr;
    align-items: stretch;
  }

  .page-home .home-signals__grid {
    grid-template-columns: 1.22fr .78fr;
    align-items: start;
  }

  .page-home .home-signals__media {
    position: sticky;
    top: 1.5rem;
  }

  .page-home .home-zone__grid {
    grid-template-columns: 1.06fr .94fr;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-home .home-steps__list {
    gap: .75rem;
  }

  .page-home .home-step__summary {
    gap: 1.2rem;
  }

  .page-home .home-step__body {
    padding-left: 4.4rem;
  }
}

@media (hover: hover) {
  .page-home .home-hero__card-meta {
    opacity: .78;
    transition: opacity .25s ease, color .25s ease;
  }

  .page-home .home-hero__card:hover .home-hero__card-meta {
    opacity: 1;
    color: var(--c-text);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-hero__card,
  .page-home .home-signals__card {
    transition: none;
  }

  .page-home .home-hero__card:hover,
  .page-home .home-signals__card:hover {
    transform: none;
  }
}