.page-home {
  --home-card-line: rgba(154, 169, 184, 0.18);
}

/* ---------- 首屏海报层 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--abyss);
  padding: clamp(30px, 6vw, 64px) 0 clamp(30px, 5vw, 60px);
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-home .hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-home .hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 60% at 80% 18%, rgba(200, 138, 61, 0.24), transparent 62%),
    linear-gradient(180deg, rgba(7, 27, 44, 0.35) 0%, rgba(7, 27, 44, 0.88) 72%, var(--abyss) 100%);
}

.page-home .hero__inner {
  position: relative;
}

.page-home .hero__coord {
  font-family: var(--font-mono);
  font-size: clamp(3.6rem, 17vw, 10rem);
  line-height: 0.85;
  letter-spacing: 0.03em;
  margin: 0 0 clamp(10px, 2vw, 20px);
  color: rgba(200, 138, 61, 0.22);
  -webkit-text-stroke: 1px rgba(230, 183, 110, 0.6);
}

.page-home .hero h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.95rem, 5.4vw, 3.7rem);
  line-height: 1.06;
  letter-spacing: 0.05em;
  color: var(--paper);
  margin: 0 0 16px;
  max-width: 16ch;
}

.page-home .hero__lede {
  max-width: 44ch;
  margin: 0 0 26px;
  color: var(--mist);
  font-size: clamp(0.95rem, 1.6vw, 1.06rem);
  line-height: 1.85;
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
  align-items: center;
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-home .hero__alt {
  color: var(--gold-lt);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid var(--accent-line);
  padding-bottom: 3px;
}

.page-home .hero__alt:hover,
.page-home .hero__alt:focus-visible {
  border-color: var(--gold-lt);
}

.page-home .hero__facts {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
  max-width: 620px;
}

.page-home .hero__facts li {
  color: var(--mist);
  font-size: 0.82rem;
  line-height: 1.6;
}

.page-home .hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  line-height: 1.2;
  color: var(--paper);
  letter-spacing: 0.02em;
}

/* ---------- 新旧双轨 ---------- */
.page-home .versions {
  padding: var(--pad-block) 0;
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(60% 50% at 88% 0%, rgba(200, 138, 61, 0.09), transparent 65%),
    var(--abyss);
}

.page-home .versions h2,
.page-home .flow h2,
.page-home .index h2,
.page-home .trust h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: 0.045em;
  color: var(--paper);
  margin: 10px 0 14px;
}

.page-home .versions__lede,
.page-home .index__lede {
  max-width: 62ch;
  margin: 0;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-home .rails {
  display: grid;
  gap: 16px;
  margin: 30px 0 0;
}

.page-home .rail {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.page-home .rail--legacy {
  background: rgba(13, 42, 66, 0.4);
}

.page-home .rail--new {
  background: linear-gradient(180deg, rgba(200, 138, 61, 0.1), rgba(13, 42, 66, 0.7));
  border-color: var(--accent-line);
}

.page-home .rail__label {
  margin: 0 0 12px;
}

.page-home .rail h3 {
  font-family: var(--font-head);
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  letter-spacing: 0.05em;
  color: var(--paper);
  margin: 0;
}

.page-home .rail__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .rail__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.75;
}

.page-home .rail__list li span {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--coral);
  padding-top: 3px;
}

.page-home .rail--new .rail__list li span {
  color: var(--mint);
}

.page-home .versions__fig {
  margin: 32px 0 0;
}

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

.page-home .versions__note {
  margin: 22px 0 0;
  max-width: 66ch;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.85;
}

.page-home .versions__note a {
  color: var(--gold-lt);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-line);
}

/* ---------- 查询动线 ---------- */
.page-home .flow {
  padding: var(--pad-block) 0;
  background: var(--deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .flow__grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1fr;
}

.page-home .flow__copy p {
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.85;
  margin: 0 0 22px;
  max-width: 42ch;
}

.page-home .step {
  border-top: 1px solid var(--line);
  padding: 14px 0;
}

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

.page-home .step summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 1.02rem;
  letter-spacing: 0.04em;
  color: var(--paper);
  padding-right: 28px;
  position: relative;
}

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

.page-home .step summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: -2px;
  font-family: var(--font-mono);
  color: var(--gold);
  font-size: 1rem;
}

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

.page-home .step summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-home .step__no {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-home .step p {
  margin: 12px 0 4px 34px;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.85;
}

.page-home .flow__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-home .flow__media-note {
  margin: 12px 0 0;
  color: var(--mist);
  font-size: 0.8rem;
  line-height: 1.75;
}

/* ---------- 三栏索引 ---------- */
.page-home .index {
  padding: var(--pad-block) 0;
  background: var(--abyss);
}

.page-home .index__cols {
  display: grid;
  grid-template-columns: 1fr;
  margin: 30px 0 0;
  border-top: 1px solid var(--line);
}

.page-home .icol {
  display: block;
  padding: 24px 20px 26px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease;
}

.page-home .icol:hover,
.page-home .icol:focus-visible {
  background: rgba(200, 138, 61, 0.08);
}

.page-home .icol:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-home .icol__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-home .icol h3 {
  font-family: var(--font-head);
  font-size: 1.18rem;
  letter-spacing: 0.05em;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-home .icol p {
  margin: 0 0 16px;
  color: var(--mist);
  font-size: 0.88rem;
  line-height: 1.78;
}

.page-home .icol__go {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  color: var(--gold-lt);
}

.page-home .icol--focus {
  background: linear-gradient(180deg, rgba(255, 107, 74, 0.11), rgba(101, 214, 179, 0.08));
  border-bottom-color: rgba(200, 138, 61, 0.4);
}

.page-home .icol--focus .icol__no {
  color: var(--coral);
}

.page-home .icol--focus .icol__go {
  color: var(--mint);
}

.page-home .index__fig {
  margin: 32px 0 0;
  border: 1px solid var(--line);
}

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

.page-home .index__fig figcaption {
  padding: 12px 16px;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--mist);
  background: rgba(13, 42, 66, 0.5);
  border-top: 1px solid var(--line);
}

/* ---------- 浅色起步区 ---------- */
.page-home .start {
  padding: var(--pad-block) 0;
  background: var(--paper);
  color: var(--abyss);
}

.page-home .start .eyebrow {
  color: #6b5a3f;
}

.page-home .start h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.6vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: 0.045em;
  color: var(--abyss);
  margin: 10px 0 26px;
}

.page-home .start__grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-home .start__card {
  background: #fff;
  border: 1px solid rgba(7, 27, 44, 0.12);
  border-top: 3px solid var(--gold);
  padding: 22px 20px 24px;
}

.page-home .start__card h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--abyss);
  margin: 0 0 10px;
}

.page-home .start__card p {
  margin: 0 0 16px;
  font-size: 0.88rem;
  line-height: 1.82;
  color: #3b4f63;
}

.page-home .start__link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: #855618;
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 138, 61, 0.65);
  padding-bottom: 3px;
}

.page-home .start__link:hover,
.page-home .start__link:focus-visible {
  color: var(--abyss);
  border-color: var(--abyss);
}

/* ---------- 数据与支持 ---------- */
.page-home .trust {
  padding: var(--pad-block) 0;
  background:
    radial-gradient(70% 60% at 12% 0%, rgba(101, 214, 179, 0.08), transparent 62%),
    var(--abyss);
  border-top: 1px solid var(--line-soft);
}

.page-home .trust__grid {
  display: grid;
  gap: 34px;
  grid-template-columns: 1fr;
}

.page-home .trust__copy p {
  max-width: 44ch;
  margin: 0 0 24px;
  color: var(--mist);
  font-size: 0.95rem;
  line-height: 1.85;
}

.page-home .trust__stats {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

.page-home .trust__stats li {
  border-left: 2px solid var(--accent-line);
  padding: 4px 0 4px 14px;
}

.page-home .trust__stats strong {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--paper);
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.page-home .trust__stats span {
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-home .trust__note {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.8;
  color: var(--gold-lt);
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

/* ---------- 移动端底部查询条 ---------- */
.page-home .mobile-bar {
  display: none;
}

@media (min-width: 600px) {
  .page-home .hero__facts {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .page-home .trust__stats {
    grid-template-columns: 1fr 1fr;
    gap: 18px 20px;
  }
}

@media (min-width: 780px) {
  .page-home .rails {
    gap: 0;
  }

  .page-home .rail--legacy {
    border-right: 1px dashed rgba(200, 138, 61, 0.35);
  }

  .page-home .flow__grid {
    grid-template-columns: 1fr 1.15fr;
    gap: 40px;
    align-items: start;
  }

  .page-home .flow__copy {
    position: sticky;
    top: 96px;
  }

  .page-home .flow__media {
    grid-column: 1 / -1;
    max-width: 420px;
  }

  .page-home .start__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

@media (min-width: 880px) {
  .page-home .rails {
    grid-template-columns: 1fr 1fr;
  }

  .page-home .index__cols {
    grid-template-columns: repeat(3, 1fr);
    border-left: 1px solid var(--line);
  }

  .page-home .icol {
    border-bottom: none;
    border-right: 1px solid var(--line);
    padding: 28px 24px 32px;
  }

  .page-home .icol--focus {
    border-right-color: rgba(200, 138, 61, 0.4);
  }
}

@media (min-width: 1024px) {
  .page-home .flow__grid {
    grid-template-columns: 0.95fr 1.35fr 0.7fr;
    gap: 44px;
  }

  .page-home .flow__media {
    grid-column: auto;
    max-width: none;
  }

  .page-home .trust__grid {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 56px;
    align-items: start;
  }
}

@media (max-width: 719px) {
  .page-home {
    padding-bottom: 84px;
  }

  .page-home .mobile-bar {
    display: flex;
    gap: 10px;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 40;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: rgba(7, 27, 44, 0.95);
    border-top: 1px solid var(--accent-line);
    backdrop-filter: blur(10px);
  }

  .page-home .mobile-bar .btn {
    flex: 1;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
  }
}

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