.page-home {
  --home-section-gap: 4.5rem;
  background-color: var(--color-cream);
  color: var(--color-ink);
}

.page-home img {
  max-width: 100%;
  height: auto;
}

/* ===== 首屏封面 ===== */
.page-home .home-hero {
  position: relative;
  padding: clamp(2.75rem, 6vw, 5.5rem) 0 2.5rem;
  background-color: var(--color-cream);
  background-image: repeating-linear-gradient(45deg, rgba(47,36,32,.018) 0 2px, transparent 2px 12px);
  border-bottom: var(--border-w-heavy) solid var(--color-ink);
}

.page-home .home-hero__grid {
  display: grid;
  gap: 2rem;
}

.page-home .home-hero__text {
  max-width: 100%;
}

.page-home .home-hero__title {
  margin: 1.1rem 0 1.4rem;
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 6.5rem);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: .02em;
  color: var(--color-ink);
}

.page-home .home-hero__title-line {
  display: block;
}

.page-home .home-hero__title-line--accent {
  margin-left: .08em;
  color: var(--color-red);
}

.page-home .home-hero__tile {
  display: inline-block;
  margin-left: .32em;
  padding: .04em .16em .08em;
  font-size: .42em;
  font-weight: 800;
  line-height: 1.2;
  vertical-align: super;
  color: var(--color-pearl);
  background: var(--color-red);
  border: 3px solid var(--color-gold);
  border-radius: 4px;
  box-shadow: 3px 3px 0 rgba(47,36,32,.85);
  transform: rotate(-8deg);
}

.page-home .home-hero__lead {
  max-width: 46ch;
  margin: 0;
  padding-left: 1rem;
  border-left: 3px solid var(--color-red);
  font-size: var(--size-body);
  line-height: 1.85;
  color: var(--color-ink);
}

.page-home .home-hero__note {
  max-width: 52ch;
  margin: 1rem 0 0;
  font-size: var(--size-meta);
  line-height: 1.7;
  color: var(--color-denim);
}

.page-home .home-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.25rem;
}

.page-home .home-hero__figure {
  position: relative;
  margin: 0;
}

.page-home .home-hero__frame,
.page-home .home-quickreview__frame,
.page-home .home-guide__frame,
.page-home .home-archive__frame {
  padding: .65rem;
  background: var(--color-pearl);
  border: var(--border-w) solid var(--color-ink);
  box-shadow: var(--shadow-solid);
}

.page-home .home-hero__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .home-hero__caption,
.page-home .home-quickreview__caption,
.page-home .home-guide__caption,
.page-home .home-archive__caption {
  margin-top: .65rem;
  font-size: var(--size-meta);
  line-height: 1.5;
  color: var(--color-denim);
  text-align: right;
}

.page-home .home-hero__index {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.5rem;
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(213,169,96,.65);
}

.page-home .home-hero__index-item {
  display: inline-flex;
  align-items: baseline;
  gap: .45rem;
  font-size: var(--size-meta);
  font-weight: 600;
  color: var(--color-denim);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.page-home .home-hero__index-item:hover,
.page-home .home-hero__index-item:focus-visible {
  color: var(--color-red);
  border-bottom-color: var(--color-red);
}

.page-home .home-hero__index-num {
  font-family: var(--font-display);
  font-size: .75rem;
  color: var(--color-gold);
}

/* ===== 数据速览 ===== */
.page-home .home-stats {
  background: var(--color-pearl);
  border-bottom: var(--border-w) solid var(--color-ink);
}

.page-home .home-stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.page-home .home-stats__item {
  padding: 1.4rem .75rem;
  border-right: 1px solid var(--color-slate);
  border-bottom: 1px solid var(--color-slate);
  text-align: center;
}

.page-home .home-stats__item:nth-child(2n) {
  border-right: none;
}

.page-home .home-stats__item:nth-last-child(-n+2) {
  border-bottom: none;
}

.page-home .home-stats__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-red);
  font-variant-numeric: tabular-nums;
}

.page-home .home-stats__unit {
  font-size: .65em;
  color: var(--color-gold);
}

.page-home .home-stats__label {
  display: block;
  margin-top: .35rem;
  font-size: var(--size-meta);
  color: var(--color-denim);
}

/* ===== 2025首页导航 ===== */
.page-home .home-nav2025 {
  padding: var(--home-section-gap) 0;
  background: var(--color-denim);
  color: var(--color-pearl);
  border-bottom: var(--border-w-heavy) solid var(--color-red);
}

.page-home .home-nav2025__grid {
  display: grid;
  gap: 2rem;
}

.page-home .home-nav2025__intro .section-title {
  color: var(--color-pearl);
}

.page-home .home-nav2025__title-accent {
  color: var(--color-gold);
}

.page-home .home-nav2025__exhibit,
.page-home .home-archive__exhibit {
  color: var(--color-gold);
}

.page-home .home-nav2025__desc {
  margin: 0 0 .9rem;
  font-size: var(--size-body);
  line-height: 1.85;
  color: rgba(250,248,242,.85);
}

.page-home .home-nav2025__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.page-home .home-nav2025__ghost {
  border-color: var(--color-gold);
  color: var(--color-gold);
}

.page-home .home-nav2025__ghost:hover {
  background: var(--color-gold);
  color: var(--color-ink);
}

.page-home .home-nav2025__entries {
  display: grid;
  gap: 1rem;
}

.page-home .home-nav2025__entry {
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 3.5rem;
  background: var(--color-pearl);
  border: var(--border-w) solid transparent;
  box-shadow: var(--shadow-md);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-home .home-nav2025__entry:hover {
  transform: translateY(-4px);
  border-color: var(--color-gold);
  box-shadow: var(--shadow-lg);
}

.page-home .home-nav2025__num {
  position: absolute;
  left: 1rem;
  top: 1.1rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-gold);
}

.page-home .home-nav2025__entry h3 {
  margin: 0 0 .45rem;
  font-size: 1.12rem;
  color: var(--color-ink);
}

.page-home .home-nav2025__entry p {
  margin: 0;
  font-size: var(--size-meta);
  line-height: 1.7;
  color: var(--color-denim);
}

/* ===== 实时更新公告 ===== */
.page-home .home-updates {
  padding: var(--home-section-gap) 0;
}

.page-home .home-updates__head {
  max-width: 60ch;
  margin-bottom: 2.2rem;
}

.page-home .home-updates__head-desc {
  max-width: 58ch;
  color: var(--color-denim);
}

.page-home .home-updates__layout {
  display: grid;
  gap: 2.2rem;
}

.page-home .home-updates__timeline {
  position: relative;
  display: grid;
  gap: 1.5rem;
}

.page-home .home-updates__timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: var(--color-gold);
}

.page-home .home-updates__item {
  position: relative;
  padding-left: 2rem;
}

.page-home .home-updates__dot {
  position: absolute;
  left: 0;
  top: .45em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-red);
  border: 2px solid var(--color-gold);
  box-shadow: 0 0 0 2px var(--color-cream);
}

.page-home .home-updates__ver {
  display: block;
  margin-bottom: .3rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-red);
}

.page-home .home-updates__body {
  padding: 1rem 1.2rem;
  background: var(--color-pearl);
  border: 2px solid var(--color-slate);
  box-shadow: var(--shadow-md);
}

.page-home .home-updates__body h3 {
  margin: .45rem 0 .4rem;
  font-size: 1.12rem;
  color: var(--color-ink);
}

.page-home .home-updates__body p {
  margin: 0;
  font-size: var(--size-meta);
  line-height: 1.7;
  color: var(--color-denim);
}

.page-home .home-updates__aside {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ===== 空闲十分钟快速复盘 ===== */
.page-home .home-quickreview {
  padding: var(--home-section-gap) 0;
  background: var(--color-slate);
  border-top: var(--border-w-heavy) solid var(--color-ink);
  border-bottom: var(--border-w-heavy) solid var(--color-ink);
}

.page-home .home-quickreview__grid {
  display: grid;
  gap: 2rem;
}

.page-home .home-quickreview__desc {
  max-width: 52ch;
  line-height: 1.85;
  color: var(--color-denim);
}

.page-home .home-quickreview__steps {
  display: grid;
  gap: .8rem;
  margin-top: 1.75rem;
}

.page-home .home-quickreview__step {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
  padding: .7rem .9rem;
  background: var(--color-pearl);
  border: 2px solid var(--color-slate);
  box-shadow: var(--shadow-md);
}

.page-home .home-quickreview__step-num {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2em;
  padding: .25em .45em;
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-gold);
  background: var(--color-ink);
  border-radius: 2px;
}

.page-home .home-quickreview__step-time {
  display: block;
  font-weight: 700;
  font-size: .95rem;
  color: var(--color-red);
}

.page-home .home-quickreview__step-desc {
  margin: .15rem 0 0;
  font-size: var(--size-meta);
  line-height: 1.6;
  color: var(--color-denim);
}

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

/* ===== 新手指引 对局回放 麻将胡了 ===== */
.page-home .home-guide {
  padding: var(--home-section-gap) 0;
  background: var(--color-pearl);
}

.page-home .home-guide__head {
  max-width: 64ch;
  margin-bottom: 2.2rem;
}

.page-home .home-guide__head-desc {
  max-width: 60ch;
  color: var(--color-denim);
}

.page-home .home-guide__grid {
  display: grid;
  gap: 2rem;
}

.page-home .home-guide__teaching {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-home .home-guide__block {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1.35rem;
  background: var(--color-cream);
  border: var(--border-w) solid var(--color-slate);
}

.page-home .home-guide__block-body {
  flex: 1;
}

.page-home .home-guide__block-num {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1;
  color: var(--color-gold);
}

.page-home .home-guide__block h3 {
  margin: .1rem 0 .75rem;
  font-size: 1.15rem;
  color: var(--color-ink);
}

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

.page-home .home-guide__block li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: .45rem;
  font-size: var(--size-meta);
  line-height: 1.7;
  color: var(--color-denim);
}

.page-home .home-guide__block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .65em;
  width: 5px;
  height: 5px;
  background: var(--color-red);
  transform: rotate(45deg);
}

.page-home .home-guide__tools li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-left: 1rem;
}

.page-home .home-guide__tools strong {
  color: var(--color-ink);
}

.page-home .home-guide__tools span {
  color: var(--color-slate-blue);
}

.page-home .home-guide__replay {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}

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

.page-home .home-guide__replay-meta {
  padding: 1.25rem 1.4rem;
  background: var(--color-cream);
  border-left: 4px solid var(--color-red);
}

.page-home .home-guide__replay-meta h3 {
  margin: 0 0 .5rem;
  font-size: 1.15rem;
  color: var(--color-ink);
}

.page-home .home-guide__replay-meta p {
  margin: 0 0 .75rem;
  font-size: var(--size-meta);
  line-height: 1.75;
  color: var(--color-denim);
}

.page-home .home-guide__replay-meta ul {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
  font-size: var(--size-meta);
  line-height: 1.8;
  color: var(--color-denim);
}

/* ===== 版本归档 ===== */
.page-home .home-archive {
  padding: var(--home-section-gap) 0;
  background: var(--color-ink);
  color: var(--color-pearl);
}

.page-home .home-archive__title {
  color: var(--color-pearl);
}

.page-home .home-archive__desc {
  max-width: 50ch;
  line-height: 1.85;
  color: rgba(250,248,242,.82);
}

.page-home .home-archive__timeline {
  display: grid;
  gap: .35rem;
  margin-top: 2rem;
}

.page-home .home-archive__milestone {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: .6rem 0;
  border-bottom: 1px solid rgba(213,169,96,.3);
}

.page-home .home-archive__milestone:last-child {
  border-bottom: none;
}

.page-home .home-archive__key {
  min-width: 6.5em;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-gold);
}

.page-home .home-archive__milestone p {
  margin: 0;
  font-size: var(--size-meta);
  color: rgba(250,248,242,.85);
}

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

/* ===== 信任区 ===== */
.page-home .home-trust {
  padding: 2.5rem 0;
  background: var(--color-slate);
  border-top: var(--border-w) solid var(--color-gold);
}

.page-home .home-trust__grid {
  display: grid;
  gap: 1.5rem;
}

.page-home .home-trust__item {
  display: flex;
  gap: .85rem;
  align-items: flex-start;
  padding: .9rem 1rem;
  background: var(--color-pearl);
  border: 2px solid var(--color-slate);
}

.page-home .home-trust__label {
  flex: 0 0 auto;
  padding: .2em .5em;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--color-red);
  background: var(--color-pearl);
  border: 1px solid var(--color-gold);
}

.page-home .home-trust__item p {
  margin: 0;
  font-size: var(--size-meta);
  line-height: 1.65;
  color: var(--color-denim);
}

.page-home .home-trust__foot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--color-gold);
  text-align: center;
}

.page-home .home-trust__foot p {
  max-width: 66ch;
  margin: 0;
  font-size: var(--size-meta);
  line-height: 1.7;
  color: var(--color-denim);
}

.page-home .home-trust__link {
  border-color: var(--color-denim);
  color: var(--color-denim);
}

/* ===== 桌面端 ===== */
@media (min-width: 900px) {
  .page-home {
    --home-section-gap: 6.5rem;
  }

  .page-home .home-hero__grid {
    grid-template-columns: repeat(12, 1fr);
    align-items: center;
  }

  .page-home .home-hero__text {
    grid-column: 1 / 8;
    padding-bottom: 3rem;
  }

  .page-home .home-hero__figure {
    grid-column: 8 / -1;
    margin-top: 4rem;
    z-index: 0;
  }

  .page-home .home-hero__figure::before {
    content: "";
    position: absolute;
    right: -14px;
    top: -14px;
    width: 100%;
    height: 100%;
    border: var(--border-w) solid var(--color-red);
    z-index: 0;
  }

  .page-home .home-hero__frame {
    position: relative;
    z-index: 1;
  }

  .page-home .home-hero__index {
    margin-top: 3.5rem;
  }

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

  .page-home .home-stats__item {
    border-right: 1px solid var(--color-slate);
    border-bottom: none;
  }

  .page-home .home-stats__item:last-child {
    border-right: none;
  }

  .page-home .home-nav2025__grid {
    grid-template-columns: 5fr 7fr;
    gap: 2.5rem;
    align-items: start;
  }

  .page-home .home-nav2025__entries {
    gap: .9rem;
  }

  .page-home .home-nav2025__entry:nth-child(2) {
    margin-left: 4%;
  }

  .page-home .home-nav2025__entry:nth-child(3) {
    margin-left: 10%;
  }

  .page-home .home-updates__layout {
    grid-template-columns: 7fr 5fr;
    gap: 2.5rem;
    align-items: start;
  }

  .page-home .home-updates__aside {
    position: sticky;
    top: 100px;
  }

  .page-home .home-quickreview__grid {
    grid-template-columns: 6fr 6fr;
    gap: 3rem;
    align-items: center;
  }

  .page-home .home-guide__grid {
    grid-template-columns: 5fr 7fr;
    gap: 2.5rem;
    align-items: start;
  }

  .page-home .home-archive__grid {
    grid-template-columns: 6fr 6fr;
    gap: 3.5rem;
    align-items: center;
  }

  .page-home .home-archive__timeline {
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 2.5rem;
  }

  .page-home .home-archive__milestone {
    flex-direction: column;
    gap: .5rem;
    border-bottom: none;
    border-left: 3px solid var(--color-gold);
    padding-left: .9rem;
  }

  .page-home .home-archive__key {
    min-width: auto;
  }

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