.page-home {
  --home-shadow: 0 16px 34px rgba(15, 27, 45, .10);
  --home-shadow-soft: 0 10px 24px rgba(15, 27, 45, .07);
  display: block;
  background: var(--paper);
  color: var(--ink);
}

.page-home .mono {
  font-family: var(--font-mono);
}

/* ── 显现协议 ── */
.has-js .page-home [data-reveal] {
  opacity: .6;
  transform: translateY(12px);
  transition: opacity 380ms var(--ease), transform 380ms var(--ease);
}
.has-js .page-home [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ══════════ 首屏 ══════════ */
.page-home .hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 0;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(255, 107, 53, .07), transparent 62%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-deep) 100%);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(107, 79, 58, .07) 1px, transparent 1px);
  background-size: 7px 7px;
  opacity: .55;
  pointer-events: none;
}

.page-home .hero > .container {
  position: relative;
  z-index: 1;
}

.page-home .hero__crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(16px, 2.6vw, 26px);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--slate);
}

.page-home .hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  padding: 5px 15px 5px 5px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: rgba(255, 253, 247, .72);
  font-size: .8125rem;
  color: var(--archive);
}

.page-home .hero__stamp {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  padding: 3px 11px;
  border-radius: var(--radius-pill);
  background: var(--signal);
  color: #fff;
}

.page-home .hero h1 {
  margin: 0 0 18px;
  max-width: 900px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.8rem, 5vw, 3.3rem);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-home .hero__lede {
  max-width: 64ch;
  margin: 0 0 26px;
  font-size: clamp(1rem, 1.55vw, 1.125rem);
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 clamp(28px, 4.5vw, 48px);
}

/* 版本轴 */
.page-home .hero__rail {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-home .hero__rail .version-axis__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding: 14px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.page-home .hero__rail .version-axis__caption {
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--slate);
  white-space: nowrap;
}

.page-home .hero__rail .version-axis__list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  flex: 1 1 320px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .hero__rail .version-axis__item {
  position: relative;
  display: flex;
}

.page-home .hero__rail .version-axis__node {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  width: 100%;
  justify-content: center;
  padding: 8px 10px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  background: var(--paper-card);
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--slate);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .hero__rail .version-axis__node:hover {
  transform: translateY(-2px);
  border-color: var(--amber);
  background: rgba(242, 166, 90, .16);
  color: var(--archive);
}

.page-home .hero__rail .version-axis__item:focus-within .version-axis__node {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.page-home .hero__rail .version-axis__ver {
  font-weight: 600;
}

.page-home .hero__rail .version-axis__year {
  font-size: .6875rem;
  opacity: .8;
}

.page-home .hero__rail .version-axis__item.is-current .version-axis__node {
  border-color: var(--signal);
  background: var(--signal);
  color: #fff;
  box-shadow: 0 6px 18px rgba(255, 107, 53, .3);
}

/* 双版本拼贴 */
.page-home .hero__duo {
  display: grid;
  gap: 20px;
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-home .panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--rule);
  border-radius: var(--radius-lg);
  background: var(--paper-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-home .panel--legacy {
  background: linear-gradient(158deg, var(--paper-card) 0%, #F0E7D6 92%);
}

.page-home .panel--current {
  background: linear-gradient(158deg, var(--paper-card) 0%, #E9EFF2 95%);
  border-color: #C9D7DE;
}

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

.page-home .panel__flag {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-home .panel__range {
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-home .panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  line-height: 1.36;
  color: var(--ink);
}

.page-home .panel__text {
  margin: 0;
  font-size: .9688rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-home .panel__link {
  margin-top: auto;
  align-self: flex-start;
  font-size: .875rem;
  font-weight: 600;
  color: var(--archive);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .panel__link:hover,
.page-home .panel__link:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-home .panel__link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* 媒体容器 */
.page-home .media {
  display: block;
  margin: 0;
}

.page-home .media__frame {
  overflow: hidden;
  border-radius: var(--radius-md);
  border: 1px solid var(--rule);
  background: var(--paper-deep);
}

.page-home .media__frame--wide {
  border-radius: var(--radius-lg);
}

.page-home .media__img,
.page-home .media__frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-home .media__caption {
  display: block;
  margin-top: 10px;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--slate);
}

/* ══════════ 编号章节通用 ══════════ */
.page-home .section {
  padding: clamp(48px, 8vw, 96px) 0;
}

.page-home .section--deck {
  background: var(--paper);
}

.page-home .section--search {
  background: var(--paper-deep);
}

.page-home .section--cadence {
  background: var(--paper);
}

.page-home .section--partner {
  background: var(--ink);
  color: var(--on-ink-strong);
}

.page-home .section-head {
  display: grid;
  gap: 8px;
  margin: 0 0 clamp(24px, 3.6vw, 40px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}

.page-home .section-head__index {
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--amber);
  font-weight: 600;
}

.page-home .section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.2vw, 2.1rem);
  line-height: 1.3;
  color: var(--ink);
}

.page-home .section-head__note {
  margin: 0;
  max-width: 60ch;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-home .section-head--invert {
  border-color: var(--hairline);
}

.page-home .section-head--invert .section-head__title {
  color: var(--on-ink-strong);
}

.page-home .section-head--invert .section-head__note {
  color: var(--on-ink-soft);
}

/* ══════════ 01 摘要卡 ══════════ */
.page-home .deck {
  display: grid;
  gap: 16px;
}

.page-home .deck__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 22px 20px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--paper-card);
  text-decoration: none;
  color: inherit;
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-home .deck__card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--signal);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease);
}

.page-home .deck__card:hover,
.page-home .deck__card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--signal);
  box-shadow: var(--home-shadow-soft);
}

.page-home .deck__card:hover::after,
.page-home .deck__card:focus-visible::after {
  transform: scaleX(1);
}

.page-home .deck__card:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.page-home .deck__num {
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--archive);
}

.page-home .deck__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  line-height: 1.42;
  color: var(--ink);
}

.page-home .deck__text {
  margin: 0;
  font-size: .9063rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-home .deck__more {
  margin-top: auto;
  padding-top: 8px;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--signal);
}

/* ══════════ 02 检索与会员 ══════════ */
.page-home .search-split {
  display: grid;
  gap: 22px;
}

.page-home .searchpanel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-lg);
  background: var(--ink);
  color: var(--on-ink-strong);
}

.page-home .searchpanel__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-pill);
  background: rgba(245, 240, 230, .07);
  font-family: var(--font-mono);
  font-size: .8125rem;
}

.page-home .searchpanel__icon {
  position: relative;
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  border: 2px solid var(--signal);
  border-radius: 50%;
}

.page-home .searchpanel__icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 7px;
  height: 2px;
  border-radius: 2px;
  background: var(--signal);
  transform: rotate(45deg);
}

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

.page-home .searchpanel__count {
  margin-left: auto;
  color: var(--amber);
  white-space: nowrap;
}

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

.page-home .searchpanel__hit {
  display: grid;
  gap: 6px;
  justify-items: start;
  padding: 10px 14px;
  border-left: 2px solid var(--signal);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(245, 240, 230, .05);
  transition: background var(--dur) var(--ease);
}

.page-home .searchpanel__hit:hover {
  background: rgba(245, 240, 230, .1);
}

.page-home .searchpanel__id {
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-home .searchpanel__line {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.5;
  color: var(--on-ink-soft);
}

.page-home .searchpanel__line mark {
  padding: 0 3px;
  border-radius: 3px;
  background: rgba(255, 107, 53, .3);
  color: #fff;
}

.page-home .searchpanel__foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--hairline);
  font-size: .8125rem;
  line-height: 1.65;
  color: var(--on-ink-faint);
}

.page-home .member {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-home .member__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.1rem, 2.2vw, 1.3rem);
  line-height: 1.4;
  color: var(--ink);
}

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

.page-home .member__dim {
  display: grid;
  gap: 4px;
  padding: 12px 15px;
  border: 1px solid var(--rule);
  border-radius: var(--radius-md);
  background: var(--paper-card);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .member__dim:hover {
  transform: translateY(-2px);
  border-color: var(--amber);
}

.page-home .member__key {
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--archive);
}

.page-home .member__desc {
  font-size: .9063rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ══════════ 03 更新节奏 ══════════ */
.page-home .timeline {
  margin: 0 0 clamp(26px, 4vw, 40px);
}

.page-home .cadence {
  display: grid;
  gap: 16px;
}

.page-home .cadence__item {
  display: grid;
  gap: 6px;
  padding-top: 14px;
  border-top: 3px solid var(--rule);
}

.page-home .cadence__item:nth-child(1) { border-top-color: var(--archive); }
.page-home .cadence__item:nth-child(2) { border-top-color: var(--slate); }
.page-home .cadence__item:nth-child(3) { border-top-color: var(--amber); }

.page-home .cadence__freq {
  margin: 0;
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-home .cadence__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.0625rem;
  line-height: 1.45;
  color: var(--ink);
}

.page-home .cadence__text {
  margin: 0;
  font-size: .9063rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-home .release {
  margin-top: clamp(26px, 4vw, 40px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--signal);
  border-radius: var(--radius-md);
  background: var(--paper-card);
}

.page-home .release__badge {
  margin: 0 0 10px;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-home .release__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  line-height: 1.45;
  color: var(--ink);
}

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

.page-home .release__list li {
  position: relative;
  padding-left: 20px;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

.page-home .release__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .68em;
  width: 8px;
  height: 2px;
  border-radius: 2px;
  background: var(--signal);
}

.page-home .release__link {
  font-size: .875rem;
  font-weight: 600;
  color: var(--archive);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .release__link:hover,
.page-home .release__link:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-home .release__link:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* ══════════ 04 合作与帮助 ══════════ */
.page-home .partner {
  display: grid;
  gap: 16px;
}

.page-home .partner__card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: clamp(20px, 3vw, 26px);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  background: var(--ink-soft);
  color: var(--on-ink-strong);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease);
}

.page-home .partner__card:hover,
.page-home .partner__card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--signal);
  background: #23374F;
}

.page-home .partner__card:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.page-home .partner__num {
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--amber);
}

.page-home .partner__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.125rem;
  line-height: 1.42;
  color: var(--on-ink-strong);
}

.page-home .partner__text {
  margin: 0;
  font-size: .9063rem;
  line-height: 1.76;
  color: var(--on-ink-soft);
}

.page-home .partner__go {
  margin-top: auto;
  padding-top: 8px;
  font-size: .8125rem;
  font-weight: 600;
  color: var(--signal);
}

.page-home .partner__foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--on-ink-soft);
}

.page-home .partner__inline {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 166, 90, .5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .partner__inline:hover,
.page-home .partner__inline:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
}

.page-home .partner__inline:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

/* ══════════ 响应式 ══════════ */
@media (min-width: 700px) {
  .page-home .section-head {
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 22px;
    align-items: start;
  }

  .page-home .section-head__index {
    grid-row: span 2;
    padding-top: 4px;
  }

  .page-home .deck {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
  }

  .page-home .deck__card--a { grid-column: span 4; }
  .page-home .deck__card--b { grid-column: span 2; }
  .page-home .deck__card--c { grid-column: span 2; }
  .page-home .deck__card--d { grid-column: span 4; }

  .page-home .cadence {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

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

@media (min-width: 920px) {
  .page-home .hero__duo {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 24px;
    align-items: start;
  }

  .page-home .panel--current {
    margin-top: 56px;
  }

  .page-home .search-split {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 26px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home [data-reveal],
  .page-home .panel,
  .page-home .deck__card,
  .page-home .member__dim,
  .page-home .partner__card,
  .page-home .hero__rail .version-axis__node {
    transition-duration: .01ms !important;
    transform: none !important;
  }

  .has-js .page-home [data-reveal] {
    opacity: 1;
    transform: none;
  }
}