.page-home {
  --home-frame-pad: clamp(20px, 4vw, 48px);
  --home-rule: rgba(143, 166, 200, 0.28);
}

/* ===== 首屏框景 ===== */
.page-home .home-hero {
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-home .hero-frame {
  position: relative;
  margin-top: clamp(16px, 2.6vw, 30px);
  padding: var(--home-frame-pad);
  border: 1px solid var(--edge-strong);
  background:
    radial-gradient(130% 95% at 88% -10%, rgba(76, 154, 255, 0.22), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(21, 158, 148, 0.16), transparent 60%),
    linear-gradient(158deg, var(--night-900), var(--night-950) 72%);
  overflow: hidden;
}

.page-home .hero-frame::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 7px;
  background-image: linear-gradient(90deg, var(--muted-400) 0 1px, transparent 1px 11px);
  background-size: 11px 7px;
  opacity: 0.4;
}

.page-home .hero-frame::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(242, 184, 75, 0.35);
  border-radius: 50%;
  box-shadow: 0 0 0 22px rgba(242, 184, 75, 0.07), 0 0 0 46px rgba(242, 184, 75, 0.04);
  pointer-events: none;
}

.page-home .hero-contours {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: rgba(76, 154, 255, 0.42);
  pointer-events: none;
}

.page-home .hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
}

.page-home .hero-copy .eyebrow {
  color: var(--saffron-500);
}

.page-home .hero-copy .display {
  margin: 14px 0 18px;
  font-size: clamp(2rem, 7.4vw, 4.4rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-home .hero-copy .lede {
  max-width: 34em;
  color: var(--mist-100);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .hero-link {
  color: var(--snow-050);
  border-bottom: 1px solid rgba(247, 251, 255, 0.4);
  padding-bottom: 2px;
}

.page-home .hero-note {
  margin-top: 20px;
  color: var(--muted-400);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-home .hero-visual {
  margin: 0;
  position: relative;
  z-index: 1;
}

.page-home .hero-visual .media-frame {
  border: 1px solid var(--edge-strong);
}

.page-home .hero-visual .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home .hero-visual .media-frame-caption {
  color: var(--muted-400);
}

/* ===== 固定分类 ===== */
.page-home .cat-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-home .cat-visual {
  margin: 0;
}

.page-home .cat-visual .media-frame {
  border: 1px solid var(--home-rule);
  background: var(--glass-800);
}

.page-home .cat-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .cat-chip {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  font-size: 0.94rem;
  font-weight: 500;
  border-radius: 2px;
  border: 1px solid transparent;
  line-height: 1.2;
}

.page-home .cat-chip--sky { background: rgba(76, 154, 255, 0.16); border-color: rgba(76, 154, 255, 0.55); color: var(--snow-050); }
.page-home .cat-chip--snow { background: rgba(247, 251, 255, 0.12); border-color: rgba(247, 251, 255, 0.45); color: var(--snow-050); }
.page-home .cat-chip--saffron { background: rgba(242, 184, 75, 0.18); border-color: rgba(242, 184, 75, 0.6); color: var(--saffron-500); }
.page-home .cat-chip--green { background: rgba(31, 138, 91, 0.2); border-color: rgba(31, 138, 91, 0.6); color: var(--snow-050); }
.page-home .cat-chip--turquoise { background: rgba(21, 158, 148, 0.2); border-color: rgba(21, 158, 148, 0.6); color: var(--snow-050); }
.page-home .cat-chip--red { background: rgba(200, 55, 45, 0.2); border-color: rgba(200, 55, 45, 0.6); color: var(--snow-050); }

.page-home .cat-note {
  margin-top: clamp(20px, 3vw, 28px);
  border-left: 3px solid var(--turquoise-500);
}

.page-home .cat-note .placard-meta {
  margin: 8px 0 0;
  color: var(--mist-100);
  line-height: 1.8;
}

.page-home .cat-foot {
  margin-top: 18px;
  color: var(--mist-100);
  font-size: 0.92rem;
}

/* ===== 五步阶梯 ===== */
.page-home .stair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-home .stair-item {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--home-rule);
  background: linear-gradient(160deg, rgba(17, 42, 87, 0.72), rgba(11, 27, 58, 0.72));
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-home .stair-item:hover {
  border-color: var(--edge-strong);
}

.page-home .stair-num {
  display: block;
  font-family: var(--font-num);
  font-size: 2.2rem;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--muted-400);
}

.page-home .stair-title {
  margin: 10px 0 8px;
  font-family: var(--font-serif);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--snow-050);
}

.page-home .stair-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--mist-100);
}

.page-home .stair-item--focus {
  border-color: rgba(242, 184, 75, 0.7);
  background:
    radial-gradient(120% 100% at 100% 0%, rgba(242, 184, 75, 0.22), transparent 60%),
    linear-gradient(160deg, rgba(17, 42, 87, 0.9), rgba(6, 19, 46, 0.92));
  box-shadow: inset 0 0 0 1px rgba(242, 184, 75, 0.2);
}

.page-home .stair-item--focus .stair-num {
  font-size: clamp(3rem, 9vw, 4.2rem);
  color: var(--saffron-500);
  text-shadow: 0 0 24px rgba(242, 184, 75, 0.35);
}

.page-home .stair-item--focus .stair-title {
  color: var(--saffron-500);
}

.page-home .switch-extra {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-home .switch-visual {
  margin: 0;
}

.page-home .switch-visual .media-frame {
  border: 1px solid var(--home-rule);
  background: var(--night-950);
}

.page-home .segment-title {
  margin: 18px 0 12px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--snow-050);
}

.page-home .tip-list {
  margin: 0;
  padding-left: 1.15em;
  color: var(--mist-100);
}

.page-home .tip-list li {
  margin-bottom: 10px;
  line-height: 1.8;
  font-size: 0.94rem;
}

.page-home .tip-list li::marker {
  color: var(--sky-500);
}

.page-home .tip-foot {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--muted-400);
}

/* ===== 月度更新 ===== */
.page-home .monthly {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-home .month-visual {
  margin: 0 0 16px;
}

.page-home .month-visual .media-frame {
  border: 1px solid var(--home-rule);
  background: var(--glass-800);
}

.page-home .month-strip {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
  max-width: 320px;
}

.page-home .month-cell {
  display: block;
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(143, 166, 200, 0.28);
  background: rgba(17, 42, 87, 0.45);
}

.page-home .month-cell--on {
  background: var(--saffron-500);
  border-color: var(--saffron-500);
  box-shadow: 0 0 0 3px rgba(242, 184, 75, 0.18);
}

.page-home .month-rule {
  margin-top: 12px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted-400);
}

.page-home .month-right .disclosure {
  margin-bottom: 12px;
  border-left: 2px solid rgba(76, 154, 255, 0.5);
}

.page-home .month-right .disclosure[open] {
  border-left-color: var(--sky-500);
}

.page-home .month-right .disclosure-body p {
  margin: 0;
  color: var(--mist-100);
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-home .tool-block {
  margin-top: clamp(20px, 3vw, 28px);
  padding-top: 18px;
  border-top: 1px solid var(--home-rule);
}

.page-home .tool-title {
  margin: 0 0 12px;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--muted-400);
}

.page-home .tool-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .tool-chip {
  font-size: 0.82rem;
}

.page-home .tool-foot {
  margin-top: 14px;
  font-size: 0.9rem;
  color: var(--mist-100);
}

/* ===== 速度与支撑 ===== */
.page-home .speed-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(24px, 4vw, 40px);
}

.page-home .speed-stat {
  padding: 18px 16px 20px;
  border: 1px solid var(--home-rule);
  background: linear-gradient(170deg, rgba(17, 42, 87, 0.6), rgba(6, 19, 46, 0.7));
}

.page-home .speed-stat .stat-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.4rem, 8vw, 3.6rem);
  line-height: 1;
  color: var(--snow-050);
}

.page-home .speed-stat .stat-label {
  display: block;
  margin-top: 10px;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--mist-100);
}

.page-home .speed-stat--accent {
  border-color: rgba(31, 138, 91, 0.55);
  background: linear-gradient(170deg, rgba(31, 138, 91, 0.28), rgba(6, 19, 46, 0.78));
}

.page-home .speed-stat--accent .stat-num {
  color: #7BE0B0;
}

.page-home .support-card {
  margin-top: clamp(20px, 3vw, 30px);
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--edge-strong);
  background:
    linear-gradient(135deg, rgba(242, 184, 75, 0.12), transparent 58%),
    rgba(11, 27, 58, 0.8);
}

.page-home .support-title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 700;
  color: var(--snow-050);
}

.page-home .support-text {
  margin: 0;
  max-width: 42em;
  color: var(--mist-100);
  font-size: 0.94rem;
  line-height: 1.85;
}

.page-home .support-meta {
  margin: 14px 0 18px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--saffron-500);
  word-break: break-word;
}

/* ===== 继续了解 ===== */
.page-home .next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-home .next-card {
  display: block;
  padding: 20px 20px 24px;
  border: 1px solid var(--home-rule);
  border-top-width: 3px;
  background: rgba(11, 27, 58, 0.62);
  text-decoration: none;
  transition: background 0.24s var(--ease), transform 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-home .next-card:hover,
.page-home .next-card:focus-visible {
  background: rgba(17, 42, 87, 0.9);
  transform: translateY(-3px);
}

.page-home .next-card--sky { border-top-color: var(--sky-500); }
.page-home .next-card--saffron { border-top-color: var(--saffron-500); }
.page-home .next-card--turquoise { border-top-color: var(--turquoise-500); }

.page-home .next-index {
  display: block;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--muted-400);
}

.page-home .next-title {
  display: block;
  margin: 10px 0 8px;
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--snow-050);
}

.page-home .next-text {
  display: block;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--mist-100);
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-home .speed-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-home .next-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(28px, 4vw, 60px);
  }

  .page-home .hero-visual {
    margin-top: clamp(24px, 5vw, 72px);
  }

  .page-home .cat-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-home .cat-body {
    padding-top: 8px;
  }

  .page-home .stair {
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, 1fr);
    grid-template-columns: none;
    align-items: end;
    gap: 12px;
  }

  .page-home .stair-item {
    align-self: end;
  }

  .page-home .stair-item:nth-child(1) { margin-bottom: 0; }
  .page-home .stair-item:nth-child(2) { margin-bottom: 18px; }
  .page-home .stair-item:nth-child(3) { margin-bottom: 38px; }
  .page-home .stair-item:nth-child(4) { margin-bottom: 18px; }
  .page-home .stair-item:nth-child(5) { margin-bottom: 0; }

  .page-home .switch-extra {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
    gap: clamp(32px, 5vw, 60px);
  }

  .page-home .monthly {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(32px, 5vw, 60px);
  }

  .page-home .month-left {
    position: sticky;
    top: calc(var(--topbar-h) + 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .next-card,
  .page-home .stair-item {
    transition: none;
  }

  .page-home .next-card:hover,
  .page-home .next-card:focus-visible {
    transform: none;
  }
}