.page-home {
  --home-gold-dim: rgba(201, 162, 39, .22);
  --home-gold-faint: rgba(227, 197, 103, .30);
  --home-rule: rgba(154, 165, 177, .34);
  --home-grain: repeating-linear-gradient(
    102deg,
    rgba(43, 43, 43, .032) 0px,
    rgba(43, 43, 43, .032) 1px,
    transparent 1px,
    transparent 5px
  );
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-home .section {
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink-900);
  color: var(--paper);
  padding: 40px 0 56px;
}

.page-home .home-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-home .home-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 50%;
  opacity: .30;
  filter: saturate(.55) contrast(1.05);
}

.page-home .home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(104deg, var(--ink-900) 30%, rgba(15, 59, 50, .70) 78%, rgba(15, 59, 50, .55) 100%),
    repeating-linear-gradient(0deg, rgba(227, 197, 103, .045) 0 1px, transparent 1px 12px);
}

.page-home .home-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-home .home-hero__main {
  order: 1;
  min-width: 0;
}

.page-home .home-hero__rail {
  order: 2;
  min-width: 0;
  border-top: 1px solid var(--home-gold-dim);
  padding-top: 24px;
}

.page-home .home-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(27px, 5.4vw, 48px);
  line-height: 1.24;
  letter-spacing: -.012em;
  color: #FFFFFF;
  text-shadow: 0 1px 0 rgba(0, 0, 0, .35);
  max-width: 17em;
}

.page-home .home-hero__lede {
  margin: 0 0 30px;
  max-width: 62ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.82;
  color: rgba(244, 241, 233, .84);
}

.page-home .home-hero__stamp {
  display: inline-block;
  margin: 12px 0 20px;
  padding: 6px 12px;
  border: 1px dashed var(--gold);
  border-radius: 2px;
  color: var(--gold-light);
  font-size: 12px;
  letter-spacing: .07em;
  background: rgba(201, 162, 39, .08);
}

.page-home .home-hero__meta {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .home-hero__meta li {
  display: grid;
  grid-template-columns: minmax(62px, auto) minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 241, 233, .74);
}

.page-home .home-hero__meta .mono {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: .01em;
}

.page-home .home-hero__toc .toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .home-hero__toc .toc__link {
  display: block;
  padding: 7px 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(244, 241, 233, .60);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-home .home-hero__toc .toc__link:hover,
.page-home .home-hero__toc .toc__link:focus-visible,
.page-home .home-hero__toc .toc__link.is-active {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
}

/* 章节预览卡 */
.page-home .home-chapters {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-home .home-chapter {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 18px 16px;
  background: rgba(244, 241, 233, .055);
  border: 1px solid var(--home-gold-dim);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--paper);
  transition: transform .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease);
}

.page-home .home-chapter:hover,
.page-home .home-chapter:focus-visible {
  transform: translateY(-4px);
  background: rgba(244, 241, 233, .10);
  border-color: var(--gold);
}

.page-home .home-chapter__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--gold-light);
  padding-top: 3px;
}

.page-home .home-chapter__body {
  display: block;
  min-width: 0;
}

.page-home .home-chapter__title {
  display: block;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  margin-bottom: 8px;
  color: #FFFFFF;
}

.page-home .home-chapter__text {
  display: block;
  font-size: 13.5px;
  line-height: 1.72;
  color: rgba(244, 241, 233, .74);
}

.page-home .home-chapter__note {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-top: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .03em;
  color: var(--gold-light);
  transition: max-height .28s var(--ease), opacity .22s var(--ease), margin-top .28s var(--ease);
}

.page-home .home-chapter:hover .home-chapter__note,
.page-home .home-chapter:focus-visible .home-chapter__note {
  max-height: 4em;
  opacity: 1;
  margin-top: 12px;
}

@media (hover: none) {
  .page-home .home-chapter__note {
    max-height: 4em;
    opacity: 1;
    margin-top: 12px;
  }
}

/* ---------- 双轨对照 ---------- */
.page-home .home-tracks-wrap {
  background-color: var(--paper);
  background-image: var(--home-grain);
}

.page-home .home-tracks {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-home .home-track {
  position: relative;
  padding: 24px 20px 26px;
  border: 1px solid var(--paper-2);
  border-radius: var(--radius);
  background: #FCFAF5;
  box-shadow: 0 14px 32px -28px rgba(15, 59, 50, .95);
  overflow: hidden;
}

.page-home .home-track::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 26px 26px 0;
  border-color: transparent var(--paper-2) transparent transparent;
}

.page-home .home-track--new {
  background: #FFFFFF;
  border-color: var(--gold);
}

.page-home .home-track--new::after {
  border-color: transparent rgba(201, 162, 39, .30) transparent transparent;
}

.page-home .home-track__flag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 11px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .07em;
  color: #FFFFFF;
  background: var(--red);
}

.page-home .home-track--new .home-track__flag {
  background: var(--gold);
  color: var(--ink-900);
  font-weight: 700;
}

.page-home .home-track__title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.38;
  color: var(--ink-900);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--home-gold-dim);
}

.page-home .home-track__figure {
  margin: 0 0 18px;
}

.page-home .home-track__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .home-track__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-home .home-track__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--red);
  border-radius: 1px;
}

.page-home .home-track__steps {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-home .home-track__steps li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--home-rule);
}

.page-home .home-track__steps .mono {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .09em;
  color: var(--gold);
}

.page-home .home-track__steps strong {
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-900);
  line-height: 1.5;
}

.page-home .home-track__steps span:last-child {
  font-size: 13.5px;
  line-height: 1.7;
  color: #4A4A4A;
}

.page-home .home-track__tail {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--slate);
}

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

/* ---------- 版本速览条 ---------- */
.page-home .home-version-wrap {
  background-color: var(--ink-800);
  color: var(--paper);
}

.page-home .home-version-wrap .section-head__title,
.page-home .home-version-wrap .section-head__title a,
.page-home .home-version h2 {
  color: #FFFFFF;
}

.page-home .home-version {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  align-items: center;
}

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

.page-home .home-version h2 {
  margin: 8px 0 14px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.3;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--home-gold-faint);
}

.page-home .home-version__lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 241, 233, .82);
}

.page-home .home-version__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--home-gold-faint);
}

.page-home .home-version__list li {
  display: grid;
  grid-template-columns: minmax(76px, auto) minmax(0, 1fr);
  gap: 18px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--home-gold-dim);
}

.page-home .home-version__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 34px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--gold-light);
}

.page-home .home-version__label {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 241, 233, .84);
}

.page-home .home-version__figure {
  margin: 0;
  justify-self: center;
  width: min(100%, 340px);
}

/* ---------- 归档时间轴 ---------- */
.page-home .home-log-wrap {
  background-color: var(--ink-900);
  color: var(--paper);
}

.page-home .home-log {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

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

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

.page-home .home-log h2 {
  margin: 8px 0 14px;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.32;
  color: #FFFFFF;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--home-gold-faint);
}

.page-home .home-log__lead {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 241, 233, .80);
}

.page-home .home-log__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 26px;
}

.page-home .home-log__jump a {
  display: inline-block;
  padding: 6px 12px;
  border: 1px solid var(--home-gold-dim);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--gold-light);
  text-decoration: none;
  transition: background-color .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease);
}

.page-home .home-log__jump a:hover,
.page-home .home-log__jump a:focus-visible {
  background: rgba(201, 162, 39, .16);
  border-color: var(--gold);
  color: #FFFFFF;
}

.page-home .home-log__timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .home-log__timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(201, 162, 39, .12) 100%);
}

.page-home .home-log__timeline .timeline__item {
  position: relative;
  padding: 0 0 26px 30px;
}

.page-home .home-log__timeline .timeline__dot {
  position: absolute;
  left: 0;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .16);
  transition: background-color .24s var(--ease), box-shadow .24s var(--ease);
}

.page-home .home-log__timeline .timeline__item.is-lit .timeline__dot {
  background: var(--gold-light);
  box-shadow: 0 0 0 7px rgba(227, 197, 103, .22);
}

.page-home .home-log__timeline .timeline__date {
  display: block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--gold-light);
  margin-bottom: 6px;
}

.page-home .home-log__timeline .timeline__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 241, 233, .84);
  max-width: 58ch;
}

.page-home .home-log__more {
  margin: 4px 0 0;
}

.page-home .home-log__more .index-link {
  color: var(--gold-light);
}

.page-home .home-log__more .index-link__note {
  color: rgba(244, 241, 233, .62);
}

/* ---------- 入口与联络 ---------- */
.page-home .home-entries {
  background-color: var(--paper-2);
  background-image: var(--home-grain);
}

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

.page-home .home-entry {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-home .home-entry:hover,
.page-home .home-entry:focus-visible {
  transform: translateY(-3px);
  border-color: var(--gold);
  box-shadow: var(--shadow-card);
}

.page-home .home-entry--contact {
  background: var(--ink-800);
  border-color: var(--ink-800);
  color: var(--paper);
}

.page-home .home-entry--contact:hover,
.page-home .home-entry--contact:focus-visible {
  border-color: var(--gold);
}

.page-home .home-entry__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--red);
}

.page-home .home-entry--contact .home-entry__num {
  color: var(--gold-light);
}

.page-home .home-entry__title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-home .home-entry--contact .home-entry__title {
  color: #FFFFFF;
}

.page-home .home-entry__text {
  font-size: 13.5px;
  line-height: 1.76;
  color: #4A4A4A;
  flex: 1 1 auto;
}

.page-home .home-entry--contact .home-entry__text {
  color: rgba(244, 241, 233, .80);
}

.page-home .home-entry__cta {
  margin-top: 6px;
  padding-top: 12px;
  border-top: 1px solid var(--home-rule);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--red);
}

.page-home .home-entry--contact .home-entry__cta {
  border-top-color: var(--home-gold-dim);
  color: var(--gold-light);
}

.page-home .home-entries__aside {
  margin: 28px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--gold);
  background: rgba(244, 241, 233, .72);
  font-size: 13.5px;
  line-height: 1.8;
  color: #4A4A4A;
}

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

.page-home .home-entries__aside a:hover,
.page-home .home-entries__aside a:focus-visible {
  color: var(--ink-900);
}

/* ---------- 图片与媒体框 ---------- */
.page-home .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-track__figure,
.page-home .home-log__figure,
.page-home .home-version__figure {
  border-radius: var(--radius);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .home-chapters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-home .home-entry:last-child {
    grid-column: span 2;
  }
}

@media (min-width: 900px) {
  .page-home .home-hero {
    padding: 56px 0 72px;
  }

  .page-home .home-hero__grid {
    grid-template-columns: 218px minmax(0, 1fr);
    gap: 52px;
  }

  .page-home .home-hero__rail {
    order: 1;
    border-top: 0;
    border-left: 1px solid var(--home-gold-dim);
    padding-top: 0;
    padding-left: 20px;
  }

  .page-home .home-hero__main {
    order: 2;
  }

  .page-home .home-tracks {
    grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
    gap: 30px;
    align-items: start;
  }

  .page-home .home-version {
    grid-template-columns: minmax(0, 1.34fr) minmax(0, .66fr);
    gap: 48px;
  }

  .page-home .home-log {
    grid-template-columns: minmax(0, .78fr) minmax(0, 1.22fr);
    gap: 48px;
    align-items: start;
  }

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

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

  .page-home .home-entry:last-child {
    grid-column: auto;
  }
}

@media (min-width: 1080px) {
  .page-home .home-chapters {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 14px;
  }

  .page-home .home-chapter {
    grid-column: span 2;
  }

  .page-home .home-chapter:nth-child(1),
  .page-home .home-chapter:nth-child(2) {
    grid-column: span 3;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-chapter,
  .page-home .home-entry,
  .page-home .home-chapter__note,
  .page-home .home-hero__toc .toc__link,
  .page-home .home-log__jump a,
  .page-home .home-log__timeline .timeline__dot {
    transition: none !important;
  }

  .page-home .home-chapter:hover,
  .page-home .home-chapter:focus-visible,
  .page-home .home-entry:hover,
  .page-home .home-entry:focus-visible {
    transform: none;
  }
}