.page-home{
  --home-gap: clamp(18px, 2.2vw, 30px);
  --home-radius: 14px;
  --home-shadow: 6px 6px 0 var(--ink);
  --home-shadow-soft: 5px 5px 0 rgba(47, 125, 79, 0.16);
  background: var(--mist);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-home .hero{
  position: relative;
  padding-block: clamp(18px, 3vw, 40px) clamp(36px, 5vw, 72px);
  border-bottom: 2px solid var(--line);
  background-color: var(--mist);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: center top;
}

.page-home .hero__inner{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-home .hero__eyebrow{
  display: block;
  margin: 14px 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--moss);
  text-transform: uppercase;
}

.page-home .hero__title{
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.06;
  font-size: clamp(32px, 7.2vw, 62px);
  color: var(--ink);
}

.page-home .hero__title-mark{
  position: relative;
  display: inline-block;
  color: var(--clover);
}

.page-home .hero__title-mark::after{
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.28em;
  background: var(--spring);
  opacity: 0.62;
  z-index: -1;
  border-radius: 2px;
}

.page-home .hero__lead{
  max-width: 56ch;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--text-soft);
}

.page-home .leaf-list{
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .leaf-link{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 6px 12px;
  padding: 12px 14px;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-left-width: 8px;
  border-radius: 10px;
  box-shadow: 4px 4px 0 rgba(196, 211, 196, 0.9);
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-home .leaf-link:hover{
  transform: translate(-2px, -2px);
  box-shadow: var(--home-shadow);
  border-color: var(--ink);
}

.page-home .leaf-link:focus-visible{
  outline: 3px solid var(--gold);
  outline-offset: 3px;
  transform: translate(-2px, -2px);
  box-shadow: var(--home-shadow);
}

.page-home .leaf-link--rule{ border-left-color: var(--clover); }
.page-home .leaf-link--notice{ border-left-color: var(--summer); }
.page-home .leaf-link--guide{ border-left-color: var(--moss); }
.page-home .leaf-link--version{ border-left-color: var(--gold); }

.page-home .leaf-link__no{
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--clover);
  letter-spacing: 0.1em;
}

.page-home .leaf-link__body{ display: block; }

.page-home .leaf-link__name{
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-home .leaf-link__desc{
  display: block;
  margin-top: 3px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-soft);
}

.page-home .leaf-link__arrow{
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--clover);
  line-height: 1.6;
}

.page-home .hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero__visual{
  display: grid;
  gap: 12px;
  padding: clamp(10px, 1.6vw, 16px);
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--home-radius);
  box-shadow: var(--home-shadow);
}

.page-home .hero__visual .media-frame{
  margin: 0;
}

.page-home .hero__stamp{
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--moss);
}

/* ---------- 通用章节 ---------- */
.page-home .band{
  padding-block: clamp(36px, 5vw, 72px);
}

.page-home .band--tint{
  background: var(--paper);
  border-block: 2px solid var(--line);
}

.page-home .section__index{
  color: var(--moss);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-home .section__title{
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  font-size: clamp(22px, 3.4vw, 34px);
  color: var(--ink);
}

/* ---------- 公告聚焦 ---------- */
.page-home .notice-band{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(18px, 3vw, 32px);
  background: var(--paper);
  border: 2px solid var(--ink);
  border-left: 10px solid var(--summer);
  border-radius: var(--home-radius);
  box-shadow: var(--home-shadow);
}

.page-home .notice-band__copy .lead{
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--text-soft);
  margin: 0 0 12px;
}

.page-home .notice-band__copy p{
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-home .notice-tags{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-home .notice-list{
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-home .notice-list__item{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-home .notice-list__time{
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--clover);
  white-space: nowrap;
}

.page-home .notice-band__figure{
  margin: 0;
  align-self: start;
}

.page-home .notice-band__cta{
  align-self: start;
}

/* ---------- 三步回查 ---------- */
.page-home .lookback{
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-home .lookback__copy .lead{
  margin: 0 0 18px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: var(--text-soft);
}

.page-home .steps{
  counter-reset: step;
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .step{
  counter-increment: step;
  position: relative;
  padding: 16px 16px 14px;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 12px;
  box-shadow: var(--home-shadow-soft);
}

.page-home .step::before{
  content: "0" counter(step);
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--clover);
}

.page-home .step__name{
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
}

.page-home .step__desc{
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-soft);
}

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

/* ---------- 栏目网格 ---------- */
.page-home .channel-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .channel{
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2.4vw, 24px);
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: var(--home-radius);
  box-shadow: var(--home-shadow-soft);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-home .channel:hover{
  transform: translate(-2px, -2px);
  box-shadow: var(--home-shadow);
}

.page-home .channel--rule{ border-top: 8px solid var(--clover); }
.page-home .channel--notice{ border-top: 8px solid var(--summer); }
.page-home .channel--guide{ border-top: 8px solid var(--moss); }
.page-home .channel--version{ border-top: 8px solid var(--gold); }

.page-home .channel__top{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-home .channel__no{
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.page-home .channel__title{
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 21px);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .channel__text,
.page-home .channel__fit{
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-home .channel__fit{
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
}

.page-home .channel__fit .mono{
  display: inline-block;
  margin-right: 6px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--clover);
}

.page-home .channel__link{
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--clover);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  width: fit-content;
}

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

.page-home .channel__link:focus-visible{
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

/* ---------- 版本下沉带 ---------- */
.page-home .version-band{
  position: relative;
  overflow: hidden;
  margin-top: clamp(36px, 5vw, 64px);
  padding-block: clamp(32px, 5vw, 64px);
  background: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--gold);
}

.page-home .version-band__texture{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

.page-home .version-band__inner{
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: center;
}

.page-home .version-band__index{
  color: var(--spring);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-home .version-band__title{
  margin: 8px 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
  font-size: clamp(22px, 3.4vw, 34px);
  color: var(--paper);
}

.page-home .version-band__text{
  margin: 0 0 18px;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(251, 252, 247, 0.82);
}

.page-home .version-card{
  padding: clamp(16px, 2.4vw, 24px);
  background: rgba(217, 164, 65, 0.1);
  border: 2px solid var(--gold);
  border-radius: var(--home-radius);
}

.page-home .version-card__label{
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-home .version-card__no{
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-home .version-card__meta{
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(251, 252, 247, 0.78);
}

.page-home .season-ticks{
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
}

.page-home .season-tick{
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid rgba(251, 252, 247, 0.4);
}

.page-home .season-tick--spring{ background: var(--spring); }
.page-home .season-tick--summer{ background: var(--summer); }
.page-home .season-tick--autumn{ background: var(--autumn); }
.page-home .season-tick--winter{ background: var(--mist); }

/* ---------- 常见问题 ---------- */
.page-home .faq-grid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-items: start;
}

.page-home .faq-item{
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 2px 16px;
  box-shadow: 4px 4px 0 var(--line);
}

.page-home .faq-item summary{
  position: relative;
  padding: 14px 28px 14px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--ink);
}

.page-home .faq-item summary::-webkit-details-marker{ display: none; }

.page-home .faq-item summary::after{
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--clover);
}

.page-home .faq-item[open] summary::after{ content: "−"; }

.page-home .faq-item summary:focus-visible{
  outline: 3px solid var(--gold);
  outline-offset: 4px;
}

.page-home .faq-item__body{
  margin: 0;
  padding: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-home .questions__more{
  margin-top: clamp(18px, 2.6vw, 26px);
}

/* ---------- 信任条 ---------- */
.page-home .trust__lead{
  max-width: 68ch;
  margin: 0 0 clamp(20px, 3vw, 30px);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text-soft);
}

.page-home .trust-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: clamp(16px, 2.4vw, 26px);
}

.page-home .trust-stat{
  padding-top: 10px;
  border-top: 2px solid var(--clover);
}

.page-home .trust-stat__num{
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.1;
  color: var(--ink);
}

.page-home .trust-stat__unit{
  margin-left: 3px;
  font-size: 0.44em;
  font-weight: 700;
  color: var(--moss);
}

.page-home .trust-stat__label{
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-soft);
}

.page-home .trust__links{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 36px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px){
  .page-home .steps{
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

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

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

  .page-home .faq-item:nth-child(1){
    grid-row: span 1;
  }
}

@media (min-width: 900px){
  .page-home .hero__inner{
    grid-template-columns: 7fr 5fr;
    gap: clamp(28px, 3.6vw, 52px);
  }

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

  .page-home .notice-band{
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-home .lookback{
    grid-template-columns: 7fr 5fr;
    align-items: stretch;
  }

  .page-home .lookback__figure{
    align-self: stretch;
    display: flex;
    flex-direction: column;
  }

  .page-home .version-band__inner{
    grid-template-columns: 1.35fr 0.65fr;
  }
}

@media (min-width: 1180px){
  .page-home .channel-grid{
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 480px){
  .page-home .leaf-link{
    grid-template-columns: auto 1fr;
  }

  .page-home .leaf-link__arrow{
    display: none;
  }

  .page-home .notice-band{
    border-left-width: 6px;
  }
}