.page-home .read-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: rgba(200, 169, 106, 0.16);
  z-index: 60;
  pointer-events: none;
}

.page-home .read-progress__bar {
  height: 100%;
  width: 0;
  background: var(--gold);
}

/* ---------- 封面 ---------- */
.page-home .cover {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 88% at 84% 4%, rgba(36, 68, 61, 0.92) 0%, rgba(14, 35, 32, 0) 62%),
    var(--ink);
  color: var(--paper);
  padding: clamp(2.2rem, 5.5vw, 5rem) 0 clamp(2rem, 4vw, 3.4rem);
}

.page-home .cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-gold) 45%, transparent);
}

.page-home .cover__grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 3.2rem);
  align-items: start;
}

.page-home .cover__eyebrow {
  margin: 0 0 1.3rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line-light);
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  line-height: 1.7;
  color: var(--gold);
}

.page-home .cover__title {
  margin: 0 0 1rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.05rem, 6.4vw, 4.2rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-home .cover__sep {
  display: inline-block;
  padding: 0 0.06em;
  font-weight: 300;
  color: var(--gold);
}

.page-home .cover__sub {
  margin: 0 0 1.5rem;
  font-size: 0.6rem;
  letter-spacing: 0.32em;
  color: var(--mist);
}

.page-home .cover__intro {
  margin: 0 0 2rem;
  max-width: 33em;
  font-size: clamp(0.96rem, 1.4vw, 1.05rem);
  line-height: 1.92;
  color: rgba(244, 239, 230, 0.82);
}

.page-home .cover__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.page-home .cover .btn--solid {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-home .cover .btn--solid:hover,
.page-home .cover .btn--solid:focus-visible {
  background: var(--gold-pale);
  border-color: var(--gold-pale);
}

.page-home .cover .btn--ghost {
  border-color: rgba(200, 169, 106, 0.5);
  color: var(--paper);
}

.page-home .cover .btn--ghost:hover,
.page-home .cover .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold-pale);
  background: rgba(200, 169, 106, 0.08);
}

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

.page-home .cover__figure .figure__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  background: var(--ink-deep);
  box-shadow: 0 34px 66px -44px rgba(0, 0, 0, 0.92);
}

.page-home .cover__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.84);
}

.page-home .cover__figure .figure__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(158deg, rgba(20, 48, 42, 0.1) 0%, rgba(14, 35, 32, 0.62) 100%);
}

.page-home .cover__figure .figure__caption {
  margin-top: 0.75rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--line-gold);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 十二格目录 ---------- */
.page-home .rail {
  background: var(--ink-deep);
  color: var(--paper);
  padding: clamp(1.6rem, 3.4vw, 2.6rem) 0 clamp(2rem, 4vw, 3rem);
}

.page-home .rail__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.4rem;
  padding-bottom: 0.9rem;
  margin-bottom: 0.2rem;
  border-bottom: 1px solid var(--line-light);
}

.page-home .rail__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--gold-pale);
}

.page-home .rail__note {
  margin: 0;
  font-size: 0.76rem;
  color: rgba(143, 163, 160, 0.92);
}

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

.page-home .rail__item {
  border-bottom: 1px solid rgba(244, 239, 230, 0.09);
}

.page-home .rail__link {
  display: block;
  padding: 0.8rem 0.85rem 0.85rem 0;
  text-decoration: none;
  color: inherit;
}

.page-home .rail__link:focus-visible {
  outline: 1px solid var(--focus);
  outline-offset: 3px;
}

.page-home .rail__num {
  display: inline-block;
  margin-right: 0.45rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--gold);
  transition: color 0.22s var(--ease);
}

.page-home .rail__name {
  font-family: var(--font-serif);
  font-size: 0.94rem;
  color: rgba(244, 239, 230, 0.94);
}

.page-home .rail__desc {
  display: block;
  margin-top: 0.3rem;
  max-height: 6rem;
  overflow: hidden;
  opacity: 1;
  font-size: 0.75rem;
  line-height: 1.6;
  color: rgba(244, 239, 230, 0.64);
  transition: max-height 0.3s var(--ease), opacity 0.24s var(--ease), margin-top 0.3s var(--ease);
}

/* ---------- 三板块 ---------- */
.page-home .boards {
  background: var(--paper-tint);
  padding: clamp(2.6rem, 6vw, 5rem) 0;
}

.page-home .boards__grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 3.4rem);
}

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

.page-home .boards__figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--sand);
  box-shadow: var(--shadow-soft);
}

.page-home .boards__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82) brightness(0.97);
}

.page-home .boards__figure .figure__caption {
  margin-top: 0.7rem;
  font-size: 0.76rem;
  line-height: 1.7;
  color: var(--moss);
}

.page-home .boards .section-head {
  margin-bottom: 1.6rem;
}

.page-home .boards .section-head__index {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--wine);
}

.page-home .boards .section-head__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.45rem, 3.2vw, 2.05rem);
  line-height: 1.36;
  color: var(--ink);
}

.page-home .boards .section-head__sub {
  margin: 0;
  max-width: 30em;
  font-size: 0.92rem;
  line-height: 1.85;
  color: rgba(27, 27, 24, 0.74);
}

.page-home .boards__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .board {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr);
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 6rem;
}

.page-home .board:last-child {
  border-bottom: 1px solid var(--line);
}

.page-home .board__num {
  grid-column: 1;
  grid-row: 1 / span 3;
  padding-top: 0.4rem;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--wine);
}

.page-home .board__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.14rem;
  font-weight: 600;
  color: var(--ink);
}

.page-home .board__text {
  grid-column: 2;
  grid-row: 2;
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  line-height: 1.86;
  color: rgba(27, 27, 24, 0.76);
}

.page-home .board__link {
  grid-column: 2;
  grid-row: 3;
  justify-self: start;
  margin-top: 0.5rem;
  padding-bottom: 1px;
  font-size: 0.8rem;
  color: var(--wine);
  text-decoration: none;
  border-bottom: 1px solid rgba(126, 47, 47, 0.34);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .board__link:hover,
.page-home .board__link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

/* ---------- 编号索引 ---------- */
.page-home .catalog {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(2.6rem, 6vw, 5rem) 0;
}

.page-home .catalog__head {
  display: grid;
  gap: 0.9rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line-gold);
}

.page-home .catalog__kicker {
  display: inline-block;
  margin-bottom: 0.55rem;
  font-size: 0.66rem;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-home .catalog__title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  line-height: 1.4;
  color: var(--paper);
}

.page-home .catalog__note {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.85;
  color: rgba(244, 239, 230, 0.68);
}

.page-home .catalog__figure {
  margin: 1.4rem 0 0;
}

.page-home .catalog__figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line-gold);
}

.page-home .catalog__figure .figure__img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: saturate(0.56) brightness(0.66);
}

.page-home .catalog__grid {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.page-home .catalog__card {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  padding: 0.9rem 0 1rem;
  border-bottom: 1px solid rgba(244, 239, 230, 0.1);
}

.page-home .catalog__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 0.26rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  transition: color 0.2s var(--ease);
}

.page-home .catalog__name {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .catalog__desc {
  grid-column: 2;
  grid-row: 2;
  margin: 0.18rem 0 0;
  font-size: 0.81rem;
  line-height: 1.72;
  color: rgba(244, 239, 230, 0.6);
}

.page-home .catalog__card:hover .catalog__num {
  color: var(--gold-pale);
}

.page-home .catalog__more {
  display: inline-block;
  margin-top: 2rem;
  border-color: rgba(200, 169, 106, 0.5);
  color: var(--gold-pale);
}

.page-home .catalog__more:hover,
.page-home .catalog__more:focus-visible {
  border-color: var(--gold);
  background: rgba(200, 169, 106, 0.1);
}

/* ---------- 移动端更新 ---------- */
.page-home .updates {
  background: var(--paper);
  padding: clamp(2.6rem, 6vw, 5rem) 0;
}

.page-home .updates__grid {
  display: grid;
  gap: clamp(1.8rem, 4vw, 3.2rem);
}

.page-home .updates__version {
  display: inline-block;
  margin-bottom: 1rem;
  padding: 0.24rem 0.62rem;
  border: 1px solid rgba(126, 47, 47, 0.34);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--wine);
}

.page-home .updates__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.4rem, 3.2vw, 1.95rem);
  line-height: 1.4;
  color: var(--ink);
}

.page-home .updates__text {
  margin: 0 0 1.5rem;
  max-width: 26em;
  font-size: 0.92rem;
  line-height: 1.88;
  color: rgba(27, 27, 24, 0.76);
}

.page-home .updates__timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .updates__item {
  position: relative;
  padding: 0 0 1.4rem 1.4rem;
  border-left: 1px solid var(--sand);
}

.page-home .updates__item:last-child {
  padding-bottom: 0;
}

.page-home .updates__item::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 0.4rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--paper);
  border: 1px solid var(--gold);
}

.page-home .updates__item:first-child::before {
  background: var(--wine);
  border-color: var(--wine);
}

.page-home .updates__when {
  display: block;
  margin-bottom: 0.28rem;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-home .updates__what {
  margin: 0 0 0.22rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
}

.page-home .updates__detail {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.78;
  color: rgba(27, 27, 24, 0.74);
}

/* ---------- 旧版公告锚点 ---------- */
.page-home .notice {
  background: var(--ink-deep);
  color: var(--paper);
  padding: clamp(2.2rem, 5vw, 3.8rem) 0;
}

.page-home .notice__grid {
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 2.6rem);
  align-items: center;
}

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

.page-home .notice__figure .figure__frame {
  overflow: hidden;
  border: 1px solid var(--line-gold);
}

.page-home .notice__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.75) brightness(0.86);
}

.page-home .notice__body {
  padding-left: clamp(0.9rem, 3vw, 1.6rem);
  border-left: 2px solid var(--line-gold);
}

.page-home .notice__kicker {
  display: inline-block;
  margin-bottom: 0.7rem;
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-home .notice__title {
  margin: 0 0 0.6rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.25rem, 2.8vw, 1.7rem);
  line-height: 1.45;
  color: var(--paper);
}

.page-home .notice__text {
  margin: 0 0 1.1rem;
  font-size: 0.88rem;
  line-height: 1.86;
  color: rgba(244, 239, 230, 0.72);
}

.page-home .notice__link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  font-size: 0.84rem;
  color: var(--gold-pale);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 169, 106, 0.45);
  padding-bottom: 1px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

.page-home .notice__arrow {
  transition: transform 0.2s var(--ease);
}

.page-home .notice__link:hover .notice__arrow {
  transform: translateX(3px);
}

/* ---------- 联络 ---------- */
.page-home .reach {
  background: var(--paper-tint);
  padding: clamp(2.6rem, 6vw, 4.6rem) 0;
}

.page-home .reach__grid {
  display: grid;
  gap: clamp(1.6rem, 3.5vw, 3rem);
}

.page-home .reach__kicker {
  display: inline-block;
  margin-bottom: 0.6rem;
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  color: var(--moss);
}

.page-home .reach__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.35rem, 3.1vw, 1.9rem);
  line-height: 1.42;
  color: var(--ink);
}

.page-home .reach__text {
  margin: 0 0 1.4rem;
  max-width: 28em;
  font-size: 0.92rem;
  line-height: 1.88;
  color: rgba(27, 27, 24, 0.76);
}

.page-home .reach__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

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

.page-home .reach__row {
  display: grid;
  grid-template-columns: 5.2rem minmax(0, 1fr);
  gap: 0.5rem 0.9rem;
  padding: 0.72rem 0;
  border-top: 1px solid var(--line);
}

.page-home .reach__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-home .reach__term {
  margin: 0;
  padding-top: 0.16rem;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  color: var(--moss);
}

.page-home .reach__value {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: var(--ink);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-home .rail__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .catalog__figure .figure__img {
    aspect-ratio: 3 / 1;
  }
}

@media (min-width: 860px) {
  .page-home .catalog__head {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: end;
    gap: 1.6rem;
  }

  .page-home .catalog__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.6rem, 4vw, 3.2rem);
  }

  .page-home .updates__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    align-items: start;
  }

  .page-home .notice__grid {
    grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  }

  .page-home .reach__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-home .cover__grid {
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.84fr);
    gap: clamp(2.4rem, 5vw, 4.4rem);
  }

  .page-home .boards__grid {
    grid-template-columns: minmax(0, 0.76fr) minmax(0, 1.24fr);
    align-items: start;
  }

  .page-home .boards__figure {
    position: sticky;
    top: 5rem;
  }
}

@media (min-width: 980px) {
  .page-home .rail__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .rail__desc {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
  }

  .page-home .rail__link:hover .rail__desc,
  .page-home .rail__link:focus-visible .rail__desc {
    max-height: 6rem;
    opacity: 1;
    margin-top: 0.3rem;
  }

  .page-home .rail__link:hover .rail__num,
  .page-home .rail__link:focus-visible .rail__num {
    color: var(--gold-pale);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .rail__desc,
  .page-home .rail__num,
  .page-home .notice__arrow,
  .page-home .board__link,
  .page-home .catalog__num {
    transition: none;
  }
}