.page-home {
  --home-band: #EFE3CD;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.75;
  overflow-x: hidden;
  padding-bottom: 5.5rem;
}

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

.page-home h1,
.page-home h2,
.page-home h3 {
  font-family: var(--serif);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-home h1 { font-size: clamp(1.95rem, 7vw, 3.5rem); }
.page-home h2 { font-size: clamp(1.45rem, 4.4vw, 2.25rem); }
.page-home h3 { font-size: clamp(1.02rem, 2.5vw, 1.24rem); }
.page-home p { margin: 0; }
.page-home a { color: inherit; }

.page-home .lede {
  font-size: clamp(1rem, 2.3vw, 1.1rem);
  color: var(--ink-72);
  max-width: 52ch;
}

.page-home .blk {
  padding-block: clamp(2.4rem, 6vw, 4.2rem);
}

.page-home #levels,
.page-home #catalog-preview,
.page-home #updates,
.page-home #getting-started,
.page-home #mobile-entry {
  scroll-margin-top: 5.5rem;
}

/* ---------- 首屏封面 ---------- */
.page-home .hero {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(1.3rem, 4vw, 2.4rem) clamp(1.8rem, 5vw, 3rem);
  display: grid;
  gap: 1.6rem;
}

.page-home .hero__cover { min-width: 0; }

.page-home .hero__kicker {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--indigo);
  border-left: 4px solid var(--vermilion);
  padding-left: 0.65rem;
  margin-bottom: 0.9rem;
}

.page-home .hero h1 { margin-bottom: 1rem; }

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.page-home .hero__facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.6rem;
  margin: 1.5rem 0 0;
  padding: 0.9rem 0 0;
  border-top: 2px solid var(--hair);
  font-size: 0.83rem;
  color: var(--ink-56);
}

.page-home .hero__facts .mono {
  font-family: var(--mono);
  font-size: 1.02rem;
  color: var(--indigo);
  margin-right: 0.3rem;
}

.page-home .hero__figure { margin: 1.5rem 0 0; }

.page-home .hero__rail {
  border: var(--line);
  background: var(--snow);
  box-shadow: var(--hard-sm);
  padding: 0.95rem 1.05rem 1rem;
}

.page-home .rail__eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--vermilion);
  margin-bottom: 0.6rem;
}

.page-home .rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.page-home .rail__link {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.5rem 0.15rem;
  border-bottom: 1px solid var(--hair);
  text-decoration: none;
  color: var(--ink);
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.page-home .rail__link:hover,
.page-home .rail__link:focus-visible {
  color: var(--vermilion);
  padding-left: 0.45rem;
}

.page-home .rail__num {
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--vermilion);
  letter-spacing: 0.04em;
}

.page-home .rail__label { font-weight: 500; font-size: 0.93rem; }

.page-home .rail__note {
  margin-top: 0.75rem;
  font-size: 0.74rem;
  color: var(--ink-56);
}

/* ---------- 会员等级 ---------- */
.page-home .levels {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  gap: 1.8rem;
}

.page-home .levels__text {
  margin-top: 0.9rem;
  color: var(--ink-72);
}

.page-home .levels__figure { margin: 1.3rem 0 0; }

.page-home .levels__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-home .level-card {
  border: var(--line);
  border-top: 9px solid var(--gold);
  background: var(--snow);
  box-shadow: var(--hard-sm);
  padding: 1rem 1rem 1.1rem;
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-home .level-card:hover,
.page-home .level-card:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: var(--hard);
}

.page-home .level-card--plus { border-top-color: var(--amber); }
.page-home .level-card--pro { border-top-color: var(--vermilion); }
.page-home .level-card--vault { border-top-color: var(--deep-red); }

.page-home .level-card__tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.71rem;
  letter-spacing: 0.14em;
  background: var(--ink);
  color: var(--snow);
  padding: 0.1rem 0.5rem;
  margin-bottom: 0.7rem;
}

.page-home .level-card__title { margin-bottom: 0.45rem; }

.page-home .level-card__body {
  font-size: 0.9rem;
  color: var(--ink-72);
}

.page-home .level-card__meta {
  margin-top: 0.8rem;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--gold-45);
  font-size: 0.79rem;
  color: var(--indigo);
  font-weight: 500;
}

/* ---------- 运营概览带 ---------- */
.page-home .metrics {
  background: var(--snow);
  border-block: var(--line);
  padding-block: clamp(1.4rem, 4vw, 2rem);
}

.page-home .metrics__list {
  list-style: none;
  margin: 0 auto;
  padding-inline: var(--gutter);
  max-width: var(--wrap);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem 1rem;
}

.page-home .metrics__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(1.25rem, 3.6vw, 1.7rem);
  line-height: 1.1;
  color: var(--vermilion);
}

.page-home .metrics__label {
  font-size: 0.79rem;
  color: var(--ink-56);
}

/* ---------- 资料库预览 ---------- */
.page-home .library {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  gap: 1.6rem;
}

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

.page-home .library__text {
  margin-top: 0.9rem;
  color: var(--ink-72);
}

.page-home .library__cats {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-home .cat-chip {
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 0.24rem 0.7rem;
  font-size: 0.82rem;
  font-weight: 500;
}

.page-home .library__hint {
  margin-top: 0.85rem;
  font-size: 0.82rem;
  color: var(--ink-56);
}

.page-home .library__body .btn { margin-top: 1.3rem; }

/* ---------- 月度更新 ---------- */
.page-home .updates {
  background: var(--indigo);
  color: var(--snow);
  border-block: var(--line);
}

.page-home .updates__inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-home .updates h2 { color: var(--snow); }

.page-home .updates .lede { color: var(--snow-72); }

.page-home .updates .eyebrow { color: var(--gold); }

.page-home .updates__head {
  display: grid;
  gap: 0.7rem;
}

.page-home .timeline {
  list-style: none;
  margin: 1.8rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.2rem;
}

.page-home .timeline__item {
  position: relative;
  padding: 0.15rem 0 0.15rem 1.15rem;
  border-left: 3px solid var(--gold-45);
  transition: transform 0.2s var(--ease);
}

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: -7px;
  top: 0.5rem;
  width: 11px;
  height: 11px;
  background: var(--gold);
  border: 2px solid var(--indigo);
  transform: rotate(45deg);
}

.page-home .timeline__item:hover { transform: translateY(-2px); }

.page-home .timeline__when {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-home .timeline__title {
  color: var(--snow);
  margin: 0.3rem 0 0.4rem;
}

.page-home .timeline__body {
  font-size: 0.89rem;
  color: var(--snow-72);
}

.page-home .updates__foot {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem 1.4rem;
}

.page-home .updates__note {
  font-size: 0.84rem;
  color: var(--snow-56);
  max-width: 46ch;
}

.page-home .updates__note a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-home .updates__note a:hover { color: var(--snow); }

/* ---------- 新用户路径 ---------- */
.page-home .route__inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-home .route__head {
  display: grid;
  gap: 0.6rem;
}

.page-home .steps {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-home .step {
  border: var(--line);
  background: var(--snow);
  box-shadow: var(--hard-sm);
  padding: 1rem 1rem 1.1rem;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-home .step:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--hard);
}

.page-home .step__num {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.73rem;
  background: var(--vermilion);
  color: var(--snow);
  padding: 0.05rem 0.45rem;
  margin-bottom: 0.65rem;
}

.page-home .step h3 { margin-bottom: 0.35rem; }

.page-home .step p {
  font-size: 0.87rem;
  color: var(--ink-72);
}

.page-home .route__inner .btn { margin-top: 1.5rem; }

/* ---------- 手机端入口 ---------- */
.page-home .mobile {
  background: var(--home-band);
  border-block: var(--line);
}

.page-home .mobile__inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: grid;
  gap: 1.5rem;
}

.page-home .mobile__text {
  margin-top: 0.9rem;
  color: var(--ink-72);
}

.page-home .mobile .note { margin-top: 1rem; }

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

.page-home .mobile-dock {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 0.95rem 0.6rem 0.8rem;
  background: var(--vermilion);
  color: var(--snow);
  border: 2px solid var(--ink);
  box-shadow: var(--hard-sm);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
}

.page-home .mobile-dock__icon {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  border: 2px solid var(--snow);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 760px) {
  .page-home { padding-bottom: 0; }

  .page-home .mobile-dock { display: none; }

  .page-home .hero {
    grid-template-columns: minmax(0, 4.5fr) minmax(0, 8fr);
    gap: 2rem;
    align-items: start;
  }

  .page-home .hero__rail {
    order: -1;
    position: sticky;
    top: 5.5rem;
  }

  .page-home .levels {
    grid-template-columns: minmax(0, 4.5fr) minmax(0, 8fr);
    gap: 2rem;
    align-items: start;
  }

  .page-home .levels__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .metrics__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-home .library {
    grid-template-columns: minmax(0, 6fr) minmax(0, 7fr);
    gap: 2rem;
    align-items: start;
  }

  .page-home .timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.6rem;
  }

  .page-home .steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1.1rem;
  }

  .page-home .mobile__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 2rem;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-home .hero { gap: 2.6rem; }
  .page-home .levels { gap: 2.6rem; }
  .page-home .level-card { padding: 1.2rem 1.2rem 1.3rem; }
  .page-home .steps { gap: 1.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .rail__link,
  .page-home .level-card,
  .page-home .step,
  .page-home .timeline__item {
    transition: none;
  }
  .page-home .level-card:hover,
  .page-home .step:hover,
  .page-home .timeline__item:hover {
    transform: none;
  }
}