.page-home {
  --home-glass: rgba(255, 255, 255, 0.68);
  --home-stack: rgba(221, 228, 220, 0.55);
  --home-line: rgba(94, 117, 104, 0.32);
  --home-step: clamp(52px, 8vw, 104px);
}

.page-home .section {
  padding-block: var(--home-step);
}

.page-home .section-head {
  display: flex;
  gap: clamp(12px, 2.4vw, 24px);
  align-items: flex-start;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-home .section-head .chapter-num {
  flex: none;
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 800;
  line-height: 0.9;
  color: var(--celadon-2);
  font-variant-numeric: tabular-nums;
}

.page-home .section-head h2 {
  margin: 4px 0 0;
  font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1.32;
  color: var(--ink-deep);
}

.page-home .section-head .eyebrow {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--celadon-3);
}

.page-home .section-tail {
  margin: 26px 0 0;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  display: grid;
  gap: clamp(26px, 5vw, 56px);
  padding-block: clamp(30px, 6vw, 76px) clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-home .hero-copy h1 {
  margin: 14px 0 0;
  font-size: clamp(34px, 6.4vw, 52px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-deep);
}

.page-home .hero-lede {
  margin: 20px 0 0;
  max-width: 34ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-home .hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin: 30px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--celadon-1);
  font-size: 14px;
  color: var(--celadon-3);
}

.page-home .hero-facts .num {
  display: inline-block;
  margin-right: 4px;
  font-size: 1.7em;
  font-weight: 800;
  line-height: 1;
  color: var(--ink-deep);
  font-variant-numeric: tabular-nums;
}

.page-home .hero-visual {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: linear-gradient(165deg, var(--celadon-2), var(--celadon-3));
  aspect-ratio: 3 / 4;
  max-height: 520px;
  min-height: 300px;
}

.page-home .hero-visual img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.8;
}

.page-home .hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.page-home .hero-visual-note {
  position: absolute;
  right: 16px;
  bottom: 14px;
  margin: 0;
  padding: 5px 10px;
  border-radius: 999px;
  background: rgba(46, 58, 51, 0.62);
  color: var(--paper);
  font-size: 12px;
}

/* ---------- 会员中心 ---------- */
.page-home .member-section {
  background:
    linear-gradient(180deg, var(--celadon-1) 0%, var(--celadon-1) 72%, transparent 72%);
  border-radius: var(--radius-l);
  padding-inline: clamp(16px, 3vw, 34px);
}

.page-home .member-status {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 28px;
  padding: 18px 22px;
  border: 1px solid var(--celadon-2);
  border-radius: var(--radius-m);
  background: var(--home-glass);
}

.page-home .member-status p {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--celadon-3);
}

.page-home .member-status strong {
  color: var(--ink-deep);
}

.page-home .status-dot {
  flex: none;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 0 rgba(228, 112, 58, 0.55);
  animation: home-pulse 2.4s ease-out infinite;
}

@keyframes home-pulse {
  0% { box-shadow: 0 0 0 0 rgba(228, 112, 58, 0.5); }
  70% { box-shadow: 0 0 0 12px rgba(228, 112, 58, 0); }
  100% { box-shadow: 0 0 0 0 rgba(228, 112, 58, 0); }
}

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

.page-home .benefit-card {
  position: relative;
  padding: 24px 22px 22px;
  border: 1px solid var(--home-line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, var(--home-glass), var(--home-stack));
}

.page-home .benefit-card h3 {
  margin: 14px 0 10px;
  font-size: 19px;
  line-height: 1.45;
  color: var(--ink-deep);
}

.page-home .benefit-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-home .benefit-tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* ---------- 旧版栏目 ---------- */
.page-home .legacy-lede {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-home .legacy-band {
  margin: 0 0 30px;
  border-radius: var(--radius-l);
  overflow: hidden;
  position: relative;
}

.page-home .legacy-band img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .legacy-band .img-caption,
.page-home .legacy-shot .img-caption,
.page-home .archive-banner .img-caption {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--celadon-3);
}

.page-home .legacy-band .img-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 14px 20px;
  background: linear-gradient(0deg, rgba(27, 33, 29, 0.72), rgba(27, 33, 29, 0));
  color: var(--paper);
}

.page-home .legacy-grid {
  display: grid;
  gap: 26px;
}

.page-home .legacy-copy p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}

.page-home .legacy-versions {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .legacy-versions li {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--celadon-1);
}

.page-home .legacy-versions li:last-child {
  border-bottom: 1px solid var(--celadon-1);
}

.page-home .ver-name {
  flex: none;
  min-width: 5.6em;
  font-size: 15px;
  font-weight: 700;
  color: var(--canal);
}

.page-home .ver-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--celadon-3);
}

.page-home .legacy-shot {
  margin: 0;
  padding: 14px;
  border: 1px solid var(--celadon-1);
  border-radius: var(--radius-m);
  background: var(--paper-deep);
}

.page-home .legacy-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-s);
}

/* ---------- 双栏对照 ---------- */
.page-home .compare-lede {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-home .compare-grid {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--celadon-2);
  border-radius: var(--radius-l);
  overflow: hidden;
}

.page-home .compare-panel {
  padding: clamp(24px, 3.4vw, 34px) clamp(20px, 2.8vw, 30px);
}

.page-home .compare-panel--orange {
  background: var(--orange-soft);
}

.page-home .compare-panel--canal {
  background: var(--canal-light);
}

.page-home .compare-panel h3 {
  margin: 14px 0 16px;
  font-size: 21px;
  line-height: 1.45;
  color: var(--ink-deep);
}

.page-home .compare-panel ul {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-home .compare-panel li {
  position: relative;
  padding: 9px 0 9px 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  border-top: 1px solid rgba(46, 58, 51, 0.12);
}

.page-home .compare-panel li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 18px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--celadon-3);
}

.page-home .compare-panel .panel-foot {
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--celadon-3);
}

/* ---------- 时间归档 ---------- */
.page-home .archive-lede {
  margin: 0 0 28px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-home .archive-node {
  display: block;
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--celadon-1);
  border-radius: var(--radius-m);
  background: var(--paper-deep);
}

.page-home .archive-node .tl-date {
  display: block;
  font-size: clamp(34px, 5vw, 44px);
  font-weight: 800;
  line-height: 1;
  color: var(--celadon-2);
  font-variant-numeric: tabular-nums;
}

.page-home .archive-node.is-current .tl-date {
  color: var(--orange);
}

.page-home .archive-ticks {
  display: block;
  height: 14px;
  margin: 16px 0 14px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--celadon-3) 0,
    var(--celadon-3) 2px,
    transparent 2px,
    transparent 11px
  );
  background-repeat: no-repeat;
  background-size: 100% 100%;
  opacity: 0.45;
}

.page-home .archive-node.is-current .archive-ticks {
  background-image: repeating-linear-gradient(
    90deg,
    var(--orange) 0,
    var(--orange) 2px,
    transparent 2px,
    transparent 11px
  );
  opacity: 0.75;
}

.page-home .archive-label {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-home .archive-node.is-current::after {
  content: "";
  position: absolute;
  top: 18px;
  right: 18px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
  animation: home-pulse 2.4s ease-out infinite;
}

.page-home .archive-note {
  margin: 26px 0 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--celadon-3);
}

.page-home .archive-banner {
  margin: 32px 0 0;
  border-radius: var(--radius-l);
  overflow: hidden;
}

.page-home .archive-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 8 / 3;
  object-fit: cover;
}

/* ---------- 分流入口 ---------- */
.page-home .fork-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .fork-card {
  display: block;
  padding: 24px 22px;
  border: 1px solid var(--home-line);
  border-radius: var(--radius-m);
  background: var(--home-glass);
  text-decoration: none;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.page-home .fork-card h3 {
  margin: 0 0 12px;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-deep);
}

.page-home .fork-card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--celadon-3);
}

.page-home .fork-go {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--canal);
}

.page-home .fork-card:hover,
.page-home .fork-card:focus-visible {
  border-color: var(--orange);
  background: var(--paper);
}

.page-home .fork-card:hover .fork-go,
.page-home .fork-card:focus-visible .fork-go {
  color: var(--orange-dark);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-home .benefit-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .legacy-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
    gap: 34px;
  }

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

@media (min-width: 900px) {
  .page-home .home-hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }

  .page-home .hero-visual {
    aspect-ratio: 4 / 5;
  }

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

  .page-home .compare-panel + .compare-panel {
    border-left: 3px solid var(--celadon-3);
  }

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

@media (min-width: 1080px) {
  .page-home .benefit-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-home .status-dot,
  .page-home .archive-node.is-current::after {
    animation: none;
  }

  .page-home .fork-card {
    transition: none;
  }
}