.page-home {
  --home-pad: clamp(52px, 8vw, 116px);
  --home-ink-band: linear-gradient(158deg, var(--ink) 0%, var(--fir-deep) 58%, var(--fir-night) 100%);
  --home-edge: clamp(16px, 4vw, 44px);
  background: var(--snow);
  color: var(--text);
  overflow-x: hidden;
}

.page-home h1,
.page-home h2 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  line-height: 1.12;
  margin: 0;
}

.page-home h1 {
  font-size: clamp(2.3rem, 7.2vw, 4.6rem);
  font-weight: 900;
}

.page-home h2 {
  font-size: clamp(1.6rem, 4.4vw, 2.7rem);
  font-weight: 800;
}

.page-home .lede {
  font-size: clamp(1rem, 2.4vw, 1.12rem);
  line-height: 1.78;
  margin: 18px 0 0;
}

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 12px;
  color: var(--maple);
}

.page-home .eyebrow--light {
  color: var(--aurora);
}

.page-home .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  isolation: isolate;
  background: var(--home-ink-band);
  color: var(--snow);
  padding: clamp(18px, 3vw, 30px) 0 clamp(64px, 10vw, 128px);
  overflow: hidden;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 -1px 0;
  height: clamp(48px, 9vw, 110px);
  background: var(--snow);
  clip-path: polygon(0 100%, 100% 34%, 100% 100%, 0 100%);
  z-index: 2;
}

.page-home .home-hero__aurora {
  position: absolute;
  inset: -20% -10% 10% -30%;
  background:
    radial-gradient(46% 42% at 24% 28%, rgba(79, 227, 193, 0.34), transparent 68%),
    radial-gradient(40% 38% at 74% 12%, rgba(169, 214, 229, 0.26), transparent 70%),
    radial-gradient(52% 46% at 88% 72%, rgba(200, 16, 46, 0.22), transparent 72%);
  filter: blur(12px);
  z-index: 0;
  pointer-events: none;
}

.page-home .home-hero__shell {
  position: relative;
  z-index: 3;
}

.page-home .home-hero__crumb .breadcrumb {
  color: rgba(247, 249, 247, 0.62);
  font-size: 0.8rem;
  margin: 0 0 clamp(20px, 4vw, 44px);
}

.page-home .home-hero__grid {
  display: grid;
  gap: clamp(30px, 6vw, 56px);
  align-items: center;
}

.page-home .home-hero__copy .lede {
  color: rgba(247, 249, 247, 0.82);
  max-width: 34em;
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 4vw, 32px);
}

.page-home .home-hero .btn--ghost {
  border-color: rgba(247, 249, 247, 0.4);
  color: var(--snow);
}

.page-home .home-hero__chapters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: clamp(30px, 6vw, 52px) 0 0;
  padding: 0;
}

.page-home .home-hero__chapters a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 8px 10px;
  border-radius: var(--radius-pill);
  background: rgba(247, 249, 247, 0.08);
  border: 1px solid rgba(247, 249, 247, 0.18);
  color: var(--snow);
  font-size: 0.86rem;
  text-decoration: none;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}

.page-home .home-hero__chapters a:hover,
.page-home .home-hero__chapters a:focus-visible {
  transform: translateX(3px);
  background: rgba(79, 227, 193, 0.16);
}

.page-home .home-hero__chapters .num {
  color: var(--aurora);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.page-home .home-hero__media {
  margin: 0;
  position: relative;
}

.page-home .home-hero__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  clip-path: polygon(0 6%, 100% 0, 100% 94%, 0 100%);
  border: 1px solid rgba(169, 214, 229, 0.28);
}

.page-home .home-hero__media figcaption {
  margin-top: 12px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: rgba(247, 249, 247, 0.55);
  text-align: right;
}

/* ---------- 通用章节 ---------- */
.page-home .home-section {
  padding: var(--home-pad) 0;
  position: relative;
}

.page-home .home-section--mist {
  background: var(--mist);
}

.page-home .home-section__head {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(28px, 5vw, 52px);
}

.page-home .home-section__index {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 7vw, 4.2rem);
  font-weight: 700;
  line-height: 0.9;
  color: var(--maple);
  opacity: 0.9;
  margin: 0;
}

.page-home .home-section__index--light {
  color: var(--aurora);
  opacity: 0.85;
}

.page-home .home-section__intro {
  margin: 14px 0 0;
  max-width: 46em;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 入口磁贴 ---------- */
.page-home .entry-stage {
  display: grid;
  gap: clamp(20px, 4vw, 36px);
}

.page-home .entry-stage__aside img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-home .entry-stage__note {
  margin: 12px 0 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--muted);
  border-left: 3px solid var(--fir);
  padding-left: 12px;
}

.page-home .home-tiles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-home .home-tile {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 14px;
  min-height: 118px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--snow);
  border: 1px solid rgba(46, 58, 58, 0.1);
  border-top: 4px solid var(--fir);
  color: var(--slate);
  text-decoration: none;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-home .home-tile__label {
  font-family: var(--font-display);
  font-size: 1.14rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-home .home-tile__desc {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-home .home-tile--amber { border-top-color: var(--amber); }
.page-home .home-tile--aurora { border-top-color: var(--aurora); }
.page-home .home-tile--maple { border-top-color: var(--maple); }
.page-home .home-tile--fir { border-top-color: var(--fir); }

.page-home .home-tile:hover,
.page-home .home-tile:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(11, 31, 42, 0.12);
}

/* ---------- 季度费用 ---------- */
.page-home .home-section--fee {
  background: linear-gradient(180deg, var(--snow) 0%, #FBFCFA 46%, var(--snow) 100%);
}

.page-home .quarter-band {
  display: grid;
  gap: 22px;
  border-radius: var(--radius-lg);
  padding: clamp(18px, 3.4vw, 30px);
  background: var(--ink);
  color: var(--snow);
  position: relative;
  overflow: hidden;
}

.page-home .quarter-band__art {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  pointer-events: none;
}

.page-home .quarter-band__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .quarter-track {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-home .quarter-node {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  align-items: center;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(247, 249, 247, 0.07);
  border: 1px solid rgba(79, 227, 193, 0.22);
}

.page-home .quarter-node__q {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--amber);
  grid-row: span 2;
  letter-spacing: 0.02em;
}

.page-home .quarter-node__t {
  font-size: 0.94rem;
  font-weight: 600;
}

.page-home .quarter-node__d {
  font-size: 0.78rem;
  color: rgba(247, 249, 247, 0.62);
}

.page-home .plan-strip {
  list-style: none;
  margin: clamp(20px, 4vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .plan-chip {
  display: grid;
  gap: 6px;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--snow);
  border: 1px solid var(--mist);
  border-left: 5px solid var(--amber);
}

.page-home .plan-chip--mid {
  border-left-color: var(--maple);
}

.page-home .plan-chip__name {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.page-home .plan-chip__price {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--slate);
}

.page-home .plan-chip__price .num {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--maple);
  margin-right: 2px;
}

.page-home .plan-chip__quota {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--muted);
}

.page-home .fee-foot {
  margin: clamp(18px, 3.5vw, 28px) 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .fee-foot a {
  color: var(--maple);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 双轨对照 ---------- */
.page-home .compare-rails {
  display: grid;
  gap: 16px;
}

.page-home .compare-rail {
  border-radius: var(--radius-md);
  padding: 20px;
}

.page-home .compare-rail--old {
  background: var(--mist);
  border: 1px dashed rgba(46, 58, 58, 0.24);
}

.page-home .compare-rail--new {
  background: var(--fir);
  color: var(--snow);
}

.page-home .compare-rail__tag {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.72;
}

.page-home .compare-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 0.94rem;
}

.page-home .compare-rail--old .compare-list li {
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: rgba(247, 249, 247, 0.66);
  color: var(--muted);
}

.page-home .compare-list--new li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: rgba(247, 249, 247, 0.08);
}

.page-home .compare-list--new .num {
  color: var(--aurora);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.page-home .compare-rail__note {
  margin: 14px 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  opacity: 0.76;
}

.page-home .compare-speed {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.page-home .compare-speed span {
  width: 2px;
  height: 16px;
  border-radius: var(--radius-pill);
  background: var(--maple);
  opacity: 0.5;
}

.page-home .compare-speed span:nth-child(2) { opacity: 0.8; }
.page-home .compare-speed span:nth-child(3) { opacity: 1; }

.page-home .compare-foot {
  margin: clamp(20px, 3.6vw, 28px) 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .compare-foot a {
  color: var(--fir);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 客服 ---------- */
.page-home .home-section--support {
  background: var(--fir-deep);
  color: var(--snow);
  clip-path: polygon(0 0, 100% 3.2%, 100% 100%, 0 100%);
  margin-top: -1px;
}

.page-home .support-grid {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
  align-items: center;
}

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

.page-home .support-copy__lede {
  margin: 16px 0 0;
  line-height: 1.82;
  color: rgba(247, 249, 247, 0.8);
}

.page-home .support-list {
  margin: clamp(20px, 3.6vw, 30px) 0 0;
  display: grid;
  gap: 12px;
}

.page-home .support-item {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(247, 249, 247, 0.06);
  border-left: 3px solid var(--aurora);
}

.page-home .support-item dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--aurora);
  margin-bottom: 4px;
}

.page-home .support-item dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(247, 249, 247, 0.9);
}

.page-home .support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 4vw, 30px);
}

.page-home .btn--ghost-light {
  border-color: rgba(247, 249, 247, 0.4);
  color: var(--snow);
}

.page-home .support-media {
  margin: 0;
}

.page-home .support-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(79, 227, 193, 0.3);
}

.page-home .support-media figcaption {
  margin-top: 12px;
  font-size: 0.78rem;
  color: rgba(247, 249, 247, 0.55);
}

/* ---------- 收尾 ---------- */
.page-home .home-closing {
  background: var(--snow);
  padding: clamp(48px, 8vw, 96px) 0;
}

.page-home .home-closing__inner {
  display: grid;
  gap: 26px;
  align-items: center;
  border-top: 1px solid var(--mist);
  padding-top: clamp(28px, 5vw, 44px);
}

.page-home .home-closing h2 {
  font-size: clamp(1.4rem, 3.6vw, 2.1rem);
  max-width: 24em;
}

.page-home .home-closing p {
  margin: 14px 0 0;
  line-height: 1.8;
  color: var(--muted);
  max-width: 44em;
}

.page-home .home-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .home-closing .btn--ghost {
  border-color: rgba(46, 58, 58, 0.28);
  color: var(--slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .home-tiles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-home .home-section__head {
    grid-template-columns: auto 1fr;
    gap: clamp(20px, 4vw, 44px);
    align-items: start;
  }

  .page-home .entry-stage {
    grid-template-columns: 4fr 7fr;
    align-items: start;
  }

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

  .page-home .quarter-track {
    flex-direction: row;
    gap: 12px;
  }

  .page-home .quarter-node {
    flex: 1 1 0;
    grid-template-columns: 1fr;
    align-content: start;
    gap: 6px;
  }

  .page-home .quarter-node__q {
    grid-row: auto;
  }

  .page-home .compare-rails {
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
  }

  .page-home .compare-speed {
    justify-content: center;
  }

  .page-home .support-grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-home .home-closing__inner {
    grid-template-columns: 1fr auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-tile,
  .page-home .home-hero__chapters a {
    transition: none;
  }
}