/* ===== page-home ===== */
.page-home {
  --home-pad: clamp(56px, 9vw, 112px);
  --home-gap: clamp(24px, 4vw, 40px);
  --hero-num: clamp(7rem, 27vw, 20rem);
  background: var(--night);
  color: var(--night);
}

.page-home *,
.page-home *::before,
.page-home *::after {
  box-sizing: border-box;
}

.page-home .section {
  position: relative;
  padding: var(--home-pad) 0;
}

.page-home .shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 40px);
  padding-right: clamp(16px, 4vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  background: var(--night);
  color: var(--warm);
  overflow: hidden;
  isolation: isolate;
  padding: calc(var(--header-h) + clamp(48px, 9vw, 96px)) 0 clamp(64px, 10vw, 120px);
  min-height: min(92vh, 900px);
  display: flex;
  align-items: center;
}

.page-home .hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-home .hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
  filter: saturate(.85) contrast(1.05);
}

.page-home .hero__backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 80% at 76% 4%, rgba(55, 224, 200, .22), transparent 58%),
    radial-gradient(90% 60% at 8% 100%, rgba(127, 182, 224, .14), transparent 60%),
    linear-gradient(180deg, rgba(11, 27, 43, .58) 0%, rgba(5, 11, 18, .94) 100%);
}

.page-home .hero__grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--silver);
  opacity: .4;
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  display: grid;
  gap: var(--sp-3);
  max-width: 960px;
}

.page-home .hero__coord {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 13px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--frost);
  font-variant-numeric: tabular-nums;
}

.page-home .hero__coord-dot {
  width: 10px;
  height: 10px;
  border: 2px solid var(--aurora);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 0 4px rgba(55, 224, 200, .16);
}

.page-home .hero__title {
  margin: 0;
  display: grid;
  gap: clamp(8px, 1.4vw, 16px);
  line-height: 1;
}

.page-home .hero__num {
  display: block;
  font-family: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', system-ui, sans-serif;
  font-size: var(--hero-num);
  font-weight: 900;
  line-height: .82;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
  color: var(--warm);
  text-shadow: 10px 10px 0 rgba(5, 11, 18, .7);
}

.page-home .hero__name {
  display: block;
  font-size: clamp(1.25rem, 3.4vw, 2.2rem);
  letter-spacing: .14em;
  font-weight: 700;
  color: var(--aurora);
}

.page-home .hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: rgba(246, 244, 239, .88);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  margin-top: var(--sp-1);
}

.page-home .hero__actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-size: 15px;
  letter-spacing: .06em;
  text-decoration: none;
  border: 2px solid transparent;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .hero__actions .btn--primary {
  background: var(--aurora);
  color: var(--polar);
  border-color: var(--aurora);
}

.page-home .hero__actions .btn--primary:hover {
  background: var(--frost);
  border-color: var(--frost);
  transform: translate(2px, 2px);
}

.page-home .hero__actions .btn--ghost {
  background: transparent;
  color: var(--warm);
  border-color: rgba(201, 210, 218, .55);
}

.page-home .hero__actions .btn--ghost:hover {
  border-color: var(--aurora);
  color: var(--frost);
}

.page-home .hero__hint {
  margin: 0;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------- 通用小标题 ---------- */
.page-home .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 var(--sp-2);
  font-size: 13px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--aurora);
  font-weight: 700;
}

.page-home .eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--aurora);
  display: inline-block;
}

.page-home .section--warm .eyebrow {
  color: #0f7f75;
}

.page-home .section--warm .eyebrow::before {
  background: #0f7f75;
}

.page-home .section-title {
  margin: 0 0 var(--sp-2);
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  line-height: 1.22;
  letter-spacing: .04em;
  font-weight: 800;
}

.page-home .section--warm .section-title,
.page-home .mobile-home .section-title {
  color: var(--night);
}

.page-home .section--night .section-title,
.page-home .section--deep .section-title {
  color: var(--warm);
}

.page-home .lede {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: #33475a;
}

/* ---------- 两步入口索引 ---------- */
.page-home .section--warm {
  background: var(--warm);
  color: var(--night);
}

.page-home .entry-index__head {
  max-width: 780px;
  margin-bottom: var(--home-gap);
}

.page-home .entry-index__grid {
  display: grid;
  gap: var(--sp-3);
  grid-template-columns: 1fr;
  grid-template-areas:
    "cards"
    "media";
}

.page-home .entry-index__cards {
  grid-area: cards;
  display: grid;
  gap: var(--sp-3);
  grid-template-columns: 1fr;
}

.page-home .entry-index__media {
  grid-area: media;
}

.page-home .entry-card {
  position: relative;
  display: block;
  padding: var(--sp-3);
  background: #fff;
  border: 2px solid var(--silver);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  color: var(--night);
  text-decoration: none;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .entry-card:hover,
.page-home .entry-card:focus-visible {
  box-shadow: 0 0 0 var(--polar);
  border-color: var(--aurora);
  background: var(--frost);
  outline: none;
}

.page-home .entry-card__no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .22em;
  font-variant-numeric: tabular-nums;
  color: var(--mist);
  margin-bottom: var(--sp-2);
}

.page-home .entry-card__title {
  margin: 0 0 8px;
  font-size: clamp(1.02rem, 1.6vw, 1.2rem);
  letter-spacing: .03em;
  font-weight: 700;
  color: var(--night);
}

.page-home .entry-card__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #3d5165;
  padding-right: 34px;
}

.page-home .entry-card__arrow {
  position: absolute;
  right: var(--sp-3);
  bottom: var(--sp-3);
  color: var(--mist);
  font-size: 20px;
  line-height: 1;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .entry-card:hover .entry-card__arrow,
.page-home .entry-card:focus-visible .entry-card__arrow {
  color: var(--aurora);
  transform: translateX(6px);
}

.page-home .media {
  display: block;
  height: 100%;
}

.page-home .media__frame {
  display: block;
  height: 100%;
  min-height: 260px;
  border: 2px solid var(--silver);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    repeating-linear-gradient(0deg, rgba(201, 210, 218, .28) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, rgba(201, 210, 218, .28) 0 1px, transparent 1px 40px),
    var(--deep);
}

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

.page-home .entry-index__media .media__frame img {
  height: 100%;
}

/* ---------- 版本坐标卡 ---------- */
.page-home .section--night {
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(55, 224, 200, .12), transparent 58%),
    var(--night);
  color: var(--warm);
  border-top: 2px solid rgba(201, 210, 218, .22);
  border-bottom: 2px solid rgba(201, 210, 218, .22);
}

.page-home .version__inner {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: 1fr;
}

.page-home .version__media .media__frame {
  min-height: 220px;
  border-color: rgba(201, 210, 218, .4);
}

.page-home .version__body {
  display: grid;
  gap: var(--sp-3);
  align-content: start;
}

.page-home .version-card {
  border: 2px solid rgba(201, 210, 218, .42);
  border-radius: var(--radius);
  background: rgba(19, 41, 61, .72);
  color: var(--warm);
  overflow: hidden;
}

.page-home .version-card__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 20px;
  padding: var(--sp-3);
  cursor: pointer;
  list-style: none;
}

.page-home .version-card__summary::-webkit-details-marker {
  display: none;
}

.page-home .version-card__summary::after {
  content: "＋";
  margin-left: auto;
  font-size: 20px;
  line-height: 1;
  color: var(--aurora);
}

.page-home .version-card[open] .version-card__summary::after {
  content: "－";
}

.page-home .version-card[open] .version-card__summary {
  border-bottom: 2px solid rgba(201, 210, 218, .3);
}

.page-home .version-card__tag {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--aurora);
  border: 1px solid rgba(55, 224, 200, .5);
  padding: 4px 10px;
  border-radius: var(--radius);
}

.page-home .version-card__num {
  font-size: clamp(1.6rem, 4.4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: .14em;
  font-variant-numeric: tabular-nums;
  color: var(--warm);
}

.page-home .version-card__date {
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.page-home .version-card__detail {
  padding: var(--sp-3);
  display: grid;
  gap: var(--sp-2);
}

.page-home .version-card__detail p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(246, 244, 239, .84);
}

.page-home .version-card__link {
  color: var(--aurora);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  border-bottom: 2px solid transparent;
  align-self: start;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .version-card__link:hover {
  color: var(--frost);
  border-color: var(--frost);
}

.page-home .version__note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(201, 210, 218, .92);
  max-width: 58ch;
}

.page-home .version__more {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--glacier);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: .06em;
  font-weight: 600;
  transition: color var(--dur) var(--ease);
}

.page-home .version__more span {
  transition: transform var(--dur) var(--ease);
  display: inline-block;
}

.page-home .version__more:hover {
  color: var(--aurora);
}

.page-home .version__more:hover span {
  transform: translateX(6px);
}

/* ---------- 反馈通道 ---------- */
.page-home .feedback__inner {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: 1fr;
  align-items: center;
}

.page-home .feedback__text {
  margin: 0 0 var(--sp-3);
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.82;
  color: #33475a;
}

.page-home .feedback__list {
  margin: 0 0 var(--sp-4);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-home .feedback__list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.7;
  color: #2b3d4f;
}

.page-home .feedback__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 14px;
  height: 2px;
  background: var(--maple);
}

.page-home .feedback__body .btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius);
  background: var(--night);
  color: var(--warm);
  border: 2px solid var(--night);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: .06em;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .feedback__body .btn:hover {
  background: var(--aurora);
  color: var(--polar);
  border-color: var(--aurora);
  transform: translate(2px, 2px);
}

.page-home .feedback__media .media__frame {
  min-height: 240px;
  border-color: var(--night);
}

/* ---------- 移动端首访 ---------- */
.page-home .mobile-home {
  background: var(--frost);
  color: var(--night);
  border-top: 2px solid rgba(11, 27, 43, .12);
}

.page-home .mobile-home__head {
  max-width: 700px;
  margin-bottom: var(--home-gap);
}

.page-home .mobile-home__grid {
  display: grid;
  gap: var(--home-gap);
  grid-template-columns: 1fr;
}

.page-home .mobile-home__stats {
  display: grid;
  gap: var(--sp-2);
  grid-template-columns: 1fr;
}

.page-home .stat-card {
  border: 2px solid var(--night);
  border-radius: var(--radius);
  background: var(--warm);
  padding: var(--sp-3);
  box-shadow: var(--shadow-hard);
}

.page-home .stat-card__num {
  margin: 0 0 8px;
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: .02em;
  font-variant-numeric: tabular-nums;
  color: var(--night);
}

.page-home .stat-card__unit {
  font-size: .46em;
  margin-left: 4px;
  font-weight: 700;
  color: var(--maple);
  letter-spacing: .05em;
}

.page-home .stat-card__label {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: #4a5d70;
  letter-spacing: .02em;
}

.page-home .mobile-home__body {
  display: grid;
  gap: var(--sp-2);
  align-content: start;
}

.page-home .mobile-home__body p {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: #2f4356;
}

.page-home .mobile-home__link {
  margin-top: var(--sp-2);
}

.page-home .mobile-home__link a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #0f7f75;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .04em;
  border-bottom: 2px solid transparent;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .mobile-home__link a span {
  transition: transform var(--dur) var(--ease);
  display: inline-block;
}

.page-home .mobile-home__link a:hover {
  color: var(--night);
  border-color: var(--night);
}

.page-home .mobile-home__link a:hover span {
  transform: translateX(6px);
}

/* ---------- 品牌落款 ---------- */
.page-home .section--deep {
  background: var(--polar);
  color: var(--warm);
  padding-bottom: calc(var(--home-pad) * .7);
}

.page-home .signoff__inner {
  display: grid;
  gap: var(--sp-2);
  max-width: 900px;
}

.page-home .signoff__coord {
  margin: 0;
  font-size: 13px;
  letter-spacing: .26em;
  color: var(--aurora);
  font-variant-numeric: tabular-nums;
}

.page-home .signoff__title {
  margin: 0;
  font-size: clamp(1.3rem, 3vw, 2rem);
  line-height: 1.3;
  letter-spacing: .06em;
  font-weight: 800;
  color: var(--warm);
}

.page-home .signoff__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(201, 210, 218, .92);
  max-width: 62ch;
}

.page-home .signoff__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-3);
  margin-top: var(--sp-2);
}

.page-home .signoff__links a {
  color: var(--glacier);
  text-decoration: none;
  font-size: 15px;
  letter-spacing: .06em;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .signoff__links a:hover {
  color: var(--aurora);
  border-color: var(--aurora);
}

.page-home .to-top-slot {
  height: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-home .entry-index__cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .mobile-home__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-home .entry-index__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, .72fr);
    grid-template-areas: "cards media";
    gap: var(--home-gap);
    align-items: stretch;
  }

  .page-home .entry-index__media .media__frame {
    min-height: 100%;
  }

  .page-home .feedback__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-home .mobile-home__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-home .version__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry-card,
  .page-home .entry-card__arrow,
  .page-home .version-card__link,
  .page-home .version__more,
  .page-home .version__more span,
  .page-home .mobile-home__link a,
  .page-home .mobile-home__link a span,
  .page-home .signoff__links a,
  .page-home .hero__actions .btn,
  .page-home .feedback__body .btn {
    transition: none !important;
    transform: none !important;
  }
}
</main>