.page-home {
  --home-dark-ink: rgba(251, 249, 245, 0.84);
  --home-dark-ink-soft: rgba(251, 249, 245, 0.66);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  min-height: 620px;
  display: flex;
  align-items: flex-end;
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
  background: var(--night);
}

.page-home .home-hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .home-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center 44%;
}

.page-home .home-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(16, 27, 43, 0.14) 0%,
    rgba(16, 27, 43, 0.46) 44%,
    rgba(16, 27, 43, 0.84) 100%
  );
}

.page-home .home-hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: clamp(96px, 24vh, 220px);
  padding-bottom: clamp(38px, 7vh, 72px);
  color: var(--mist);
}

.page-home .home-hero-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--home-dark-ink-soft);
}

.page-home .home-hero-eyebrow {
  margin: 0;
  color: var(--poplar);
  font-size: 13px;
  letter-spacing: 0.18em;
}

.page-home .home-hero-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-size: clamp(40px, 9.2vw, 94px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-home .home-hero-lead {
  max-width: 46ch;
  margin: 22px 0 0;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.82;
  color: var(--home-dark-ink);
}

.page-home .home-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-home .home-btn-light {
  color: var(--mist);
  border-color: rgba(251, 249, 245, 0.52);
}

.page-home .home-btn-light:hover {
  border-color: var(--mist);
}

.page-home .home-hero-stamp {
  margin: 30px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--home-dark-ink-soft);
}

/* ---------- 章节索引条 ---------- */
.page-home .home-toc {
  position: sticky;
  top: 0;
  z-index: 24;
  background: rgba(251, 249, 245, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: var(--rule);
}

.page-home .home-toc-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.page-home .home-toc-label {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

.page-home .home-toc-list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-home .home-toc-list::-webkit-scrollbar {
  display: none;
}

.page-home .home-toc-link {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.page-home .home-toc-link:hover {
  color: var(--ink);
  border-color: var(--blueprint-soft);
}

.page-home .home-toc-link[aria-current="true"] {
  color: var(--ink);
  background: var(--gravel);
  border-color: var(--blueprint-soft);
}

/* ---------- 通用章节头 ---------- */
.page-home .home-section-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .home-section-no {
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--ink-soft);
}

.page-home .home-section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.8vw, 46px);
  line-height: 1.16;
  color: var(--ink);
}

.page-home .home-section-lede {
  max-width: 62ch;
  margin: 16px 0 0;
  color: var(--ink-soft);
}

/* ---------- 四季时间轴 ---------- */
.page-home .home-seasons {
  padding: clamp(52px, 9vw, 108px) 0 clamp(46px, 7vw, 82px);
}

.page-home .season-track {
  position: relative;
  margin-top: clamp(32px, 5vw, 56px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .season-node {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 24px 28px;
  border: var(--rule);
  border-radius: var(--radius-lg);
  background: var(--mist);
}

.page-home .season-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--season-color);
}

.page-home .season-node--spring { --season-color: var(--spring); }
.page-home .season-node--summer { --season-color: var(--summer); }
.page-home .season-node--autumn { --season-color: var(--autumn); }
.page-home .season-node--winter { --season-color: var(--winter); }

.page-home .season-node-index {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

.page-home .season-node-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(21px, 3vw, 26px);
  line-height: 1.24;
  color: var(--ink);
}

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

.page-home .season-channels li {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--ink);
  background: rgba(169, 188, 203, 0.22);
}

.page-home .season-node--spring .season-channels li { background: rgba(78, 140, 122, 0.14); }
.page-home .season-node--summer .season-channels li { background: rgba(217, 161, 74, 0.18); }
.page-home .season-node--autumn .season-channels li { background: rgba(180, 98, 58, 0.14); }
.page-home .season-node--winter .season-channels li { background: rgba(47, 75, 114, 0.12); }

.page-home .season-node-note {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-home .season-slices {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-home .season-slice {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-home .season-slice img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

/* ---------- 本版更新 ---------- */
.page-home .home-update {
  padding: clamp(50px, 8vw, 96px) 0;
  background: linear-gradient(180deg, var(--mist) 0%, var(--gravel) 100%);
}

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

.page-home .home-update-list {
  display: grid;
  gap: 20px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-update-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-home .home-update-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 13px;
  color: var(--mist);
  background: var(--spring);
}

.page-home .home-update-item:nth-child(2) .home-update-no {
  background: var(--summer);
  color: var(--ink);
}

.page-home .home-update-item:nth-child(3) .home-update-no {
  background: var(--winter);
}

.page-home .home-update-item h3 {
  margin: 4px 0 8px;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink);
}

.page-home .home-update-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-home .home-update-side {
  box-shadow: var(--shadow-soft);
}

.page-home .home-version-list {
  display: grid;
  gap: 0;
  margin: 14px 0 0;
}

.page-home .home-version-list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: var(--rule);
}

.page-home .home-version-list > div:last-child {
  border-bottom: 0;
}

.page-home .home-version-list dt {
  font-size: 14px;
  color: var(--ink-soft);
}

.page-home .home-version-list dd {
  margin: 0;
  font-size: 15px;
  color: var(--ink);
}

.page-home .home-version-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 三步开始 ---------- */
.page-home .home-steps {
  padding: clamp(52px, 8vw, 98px) 0;
}

.page-home .step-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0 0 34px;
  list-style: none;
}

.page-home .step-card {
  padding: 28px 24px 26px;
  border: var(--rule);
  border-radius: var(--radius-lg);
  background: var(--mist);
}

.page-home .step-card:nth-child(1) { transition-delay: 0.02s; }
.page-home .step-card:nth-child(2) { transition-delay: 0.12s; }
.page-home .step-card:nth-child(3) { transition-delay: 0.22s; }

.page-home .step-no {
  display: inline-block;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--autumn);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--autumn);
}

.page-home .step-title {
  margin: 16px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 24px);
  line-height: 1.36;
  color: var(--ink);
}

.page-home .step-body {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-soft);
}

/* ---------- 换设备回来 ---------- */
.page-home .home-return {
  margin: 0 clamp(10px, 3vw, 36px);
  padding: clamp(52px, 8vw, 100px) 0;
  border-radius: var(--radius-xl);
  background: linear-gradient(158deg, var(--winter) 0%, var(--night) 100%);
  color: var(--mist);
}

.page-home .home-return-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-home .home-return .home-section-no {
  color: var(--home-dark-ink-soft);
}

.page-home .home-return .home-section-title {
  color: var(--mist);
}

.page-home .home-return .home-section-lede {
  color: var(--home-dark-ink);
}

.page-home .home-return-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-home .home-return-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-home .home-return .media-caption {
  color: var(--home-dark-ink-soft);
}

.page-home .home-return-points {
  display: grid;
  gap: 20px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-return-points h3 {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--poplar);
}

.page-home .home-return-points p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--home-dark-ink);
}

.page-home .home-return-stat {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(251, 249, 245, 0.22);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--home-dark-ink-soft);
}

/* ---------- 专题与答疑 ---------- */
.page-home .home-reading {
  padding: clamp(52px, 8vw, 100px) 0 clamp(40px, 6vw, 72px);
}

.page-home .home-feed-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-home .home-feed-col--support {
  padding: 26px 22px 28px;
  border-radius: var(--radius-lg);
  background: var(--gravel);
}

.page-home .home-feed-head h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1.3;
  color: var(--ink);
}

.page-home .home-feed-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.page-home .home-feed-item {
  padding: 16px 0;
  border-bottom: var(--rule);
}

.page-home .home-feed-meta {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}

.page-home .home-feed-link {
  display: inline-block;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.55;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-home .home-feed-link:hover {
  border-bottom-color: var(--poplar);
}

.page-home .home-feed-more {
  margin-top: 22px;
}

/* ---------- 联系 ---------- */
.page-home .home-reach {
  padding: clamp(52px, 8vw, 96px) 0 clamp(60px, 9vw, 112px);
}

.page-home .home-reach-lede {
  max-width: 54ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-home .home-contact-list {
  display: grid;
  gap: 12px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 18px;
  border: var(--rule);
  border-radius: var(--radius-md);
  background: var(--mist);
}

.page-home .home-contact-label {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

.page-home .home-contact-value {
  font-size: 15px;
  line-height: 1.72;
  color: var(--ink);
  word-break: break-word;
}

.page-home .home-reach-note {
  margin: 20px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-home .home-reach-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-home .home-contact-row {
    grid-template-columns: 100px minmax(0, 1fr) auto;
    align-items: center;
    gap: 16px;
  }

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

@media (min-width: 860px) {
  .page-home .home-hero {
    min-height: 78vh;
  }

  .page-home .season-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 26px;
    padding-top: 48px;
  }

  .page-home .season-track::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 26px;
    height: 2px;
    border-radius: 2px;
    background: var(--season-line);
    opacity: 0.85;
  }

  .page-home .season-node {
    overflow: visible;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
  }

  .page-home .season-node::before {
    top: -30px;
    left: 0;
    bottom: auto;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--season-color);
    box-shadow: 0 0 0 6px var(--mist);
  }

  .page-home .step-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-home .step-card:nth-child(2) {
    margin-top: 30px;
  }

  .page-home .step-card:nth-child(3) {
    margin-top: 60px;
  }

  .page-home .home-feed-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 44px;
  }
}

@media (min-width: 940px) {
  .page-home .home-update-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
  }

  .page-home .home-return-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    align-items: center;
  }
}
<<<END>>>