/* ============ 首页专属样式（作用域 .page-home） ============ */

.page-home {
  --home-hair: rgba(11, 12, 14, 0.14);
  --home-hair-dark: rgba(246, 241, 230, 0.16);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  background: var(--paper-50);
  padding-block: clamp(32px, 5vw, 64px) clamp(48px, 7vw, 96px);
}

.page-home .hero__ink {
  display: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 48px);
  align-items: center;
}

.page-home .hero__title {
  font-family: var(--font-display);
  font-size: var(--fs-96);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0.16em 0 0.26em;
}

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

.page-home .hero__title-line--accent {
  color: var(--gold-600);
}

.page-home .hero__lede {
  max-width: 62ch;
  font-size: var(--fs-17);
  line-height: 1.78;
  color: var(--ink-muted);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-home .hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
  list-style: none;
  margin: 38px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line-light);
}

.page-home .hero__stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-home .hero__statnum {
  font-family: var(--font-num);
  font-size: var(--fs-22);
  font-weight: 700;
  line-height: 1.15;
  color: var(--gold-600);
  letter-spacing: 0.02em;
}

.page-home .hero__statlab {
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

.page-home .hero__figure {
  margin: 0;
  width: 100%;
  max-width: 420px;
  justify-self: center;
}

.page-home .hero__figure .figure__frame {
  aspect-ratio: 4 / 5;
}

.page-home .hero__figure .figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-home .hero__figure .figure__caption {
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-top: 10px;
}

/* ---------- 结构索引 ---------- */
.page-home .home-index {
  background: var(--paper-50);
}

.page-home .home-index__head {
  max-width: 760px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

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

.page-home .indexlist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
}

.page-home .indexlist__item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  grid-template-rows: auto auto;
  column-gap: 16px;
  align-items: start;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line-light);
  transition: background-color 200ms var(--ease-out);
}

.page-home .indexlist__item:hover {
  background: rgba(192, 138, 46, 0.07);
}

.page-home .indexlist__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--gold-600);
  font-variant-numeric: tabular-nums;
}

.page-home .indexlist__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-22);
  font-weight: 800;
  line-height: 1.35;
}

.page-home .indexlist__title a {
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease-out), color 180ms var(--ease-out);
}

.page-home .indexlist__title a:hover {
  color: var(--gold-600);
  border-bottom-color: var(--gold-600);
}

.page-home .indexlist__desc {
  grid-column: 2;
  grid-row: 2;
  margin: 4px 0 0;
  font-size: var(--fs-14);
  line-height: 1.72;
  color: var(--ink-muted);
}

.page-home .home-index__aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.page-home .v32card {
  background: var(--paper-200);
  border: 1px solid var(--line-light);
  border-left: 3px solid var(--gold-600);
  padding: 24px 22px;
}

.page-home .v32card .card__title {
  font-family: var(--font-display);
  font-size: var(--fs-22);
  font-weight: 800;
  line-height: 1.4;
  margin: 10px 0 0;
}

.page-home .v32card__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .v32card__list li {
  display: grid;
  gap: 3px;
  padding-left: 14px;
  border-left: 2px solid var(--gold-600);
}

.page-home .v32card__list b {
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink-900);
}

.page-home .v32card__list span {
  font-size: var(--fs-14);
  line-height: 1.68;
  color: var(--ink-muted);
}

.page-home .card__meta {
  display: block;
  margin: 18px 0 0;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

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

.page-home .home-index__figure .figure__frame {
  aspect-ratio: 16 / 9;
}

/* ---------- 任务快捷通道 ---------- */
.page-home .home-tasks__head {
  max-width: 660px;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-home .taskrail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(76%, 320px);
  gap: 16px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding-bottom: 14px;
  -webkit-overflow-scrolling: touch;
}

.page-home .taskcard {
  display: flex;
  flex-direction: column;
  gap: 10px;
  scroll-snap-align: start;
  background: var(--paper-50);
  border: 1px solid var(--line-light);
  border-top: 3px solid var(--gold-600);
  padding: 24px 22px 26px;
  transition: transform 240ms var(--ease-out), box-shadow 240ms var(--ease-out);
}

.page-home .taskcard:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 0 1px rgba(192, 138, 46, 0.4), 0 14px 30px rgba(11, 12, 14, 0.09);
}

.page-home .taskcard--rust {
  border-top-color: var(--rust-500);
}

.page-home .taskcard--blue {
  border-top-color: var(--blue-500);
}

.page-home .taskcard__idx {
  font-family: var(--font-num);
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  color: var(--ink-faint);
}

.page-home .taskcard__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-22);
  font-weight: 800;
  line-height: 1.42;
}

.page-home .taskcard__desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--ink-muted);
}

.page-home .taskcard__step {
  margin: 4px 0 0;
  padding: 12px 14px;
  background: var(--paper-200);
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-home .taskcard__step b {
  color: var(--ink-900);
  letter-spacing: 0.04em;
}

.page-home .taskcard__time {
  margin: auto 0 0;
  padding-top: 16px;
  font-family: var(--font-num);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--gold-600);
}

.page-home .taskcard .btn {
  align-self: flex-start;
}

/* ---------- 版本演进 ---------- */
.page-home .home-timeline {
  background: var(--paper-50);
}

.page-home .home-timeline__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-home .home-timeline__head > div {
  max-width: 700px;
}

.page-home .home-timeline__anno {
  display: none;
}

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

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

.page-home .home-timeline__figure .figure__frame {
  aspect-ratio: 4 / 3;
}

.page-home .home-timeline__figure .figure__caption {
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  margin-top: 10px;
}

.page-home .stage {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-light);
}

.page-home .stage__item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  column-gap: 18px;
  align-items: baseline;
  padding: 14px 2px;
  border-bottom: 1px solid var(--line-light);
  transition: background-color 200ms var(--ease-out);
}

.page-home .stage__item:hover {
  background: rgba(192, 138, 46, 0.06);
}

.page-home .stage__ver {
  position: relative;
  padding-left: 15px;
  font-family: var(--font-num);
  font-size: var(--fs-17);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold-600);
}

.page-home .stage__ver::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold-600);
}

.page-home .stage__note {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.72;
  color: var(--ink-muted);
}

/* ---------- 移动端与本地 ---------- */
.page-home .home-mobile {
  background: var(--ink-900);
  color: var(--paper-text);
}

.page-home .home-mobile__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.page-home .home-mobile .prose {
  color: var(--paper-muted);
}

.page-home .home-mobile__stats {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 20px 24px;
}

.page-home .home-mobile__stat {
  border-top: 1px solid var(--line-dark);
  padding-top: 12px;
}

.page-home .home-mobile__num {
  display: block;
  font-family: var(--font-num);
  font-size: var(--fs-32);
  font-weight: 700;
  line-height: 1.12;
  color: var(--gold-300);
}

.page-home .home-mobile__lab {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--paper-muted);
}

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

.page-home .home-mobile__figure .figure__frame {
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line-dark);
}

.page-home .home-mobile__figure .figure__caption {
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--paper-faint);
  margin-top: 10px;
}

/* ---------- 收束 ---------- */
.page-home .home-help {
  background: var(--paper-50);
}

.page-home .home-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-home .home-help__copy .prose {
  margin-top: 14px;
}

.page-home .home-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-home .home-help__card {
  background: var(--paper-200);
  border: 1px solid var(--line-light);
  padding: 26px 24px;
}

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

.page-home .home-help__list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--ink-muted);
}

.page-home .home-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 1px;
  background: var(--gold-600);
}

.page-home .home-help__contact {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line-light);
  display: grid;
  gap: 14px;
}

.page-home .home-help__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.page-home .home-help__key {
  display: block;
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  color: var(--ink-faint);
}

.page-home .home-help__val {
  display: block;
  margin-top: 2px;
  font-family: var(--font-num);
  font-size: var(--fs-14);
  color: var(--ink-900);
  word-break: break-all;
}

/* ---------- 断点：平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-home .indexlist__item {
    grid-template-columns: 68px 186px minmax(0, 1fr);
    grid-template-rows: auto;
    column-gap: 24px;
    align-items: baseline;
    padding: 22px 6px;
  }

  .page-home .indexlist__num {
    grid-column: 1;
    grid-row: 1;
  }

  .page-home .indexlist__title {
    grid-column: 2;
    grid-row: 1;
  }

  .page-home .indexlist__desc {
    grid-column: 3;
    grid-row: 1;
    margin-top: 0;
  }
}

@media (min-width: 900px) {
  .page-home .hero__ink {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 1;
    background: var(--ink-900);
    clip-path: polygon(56% 0, 100% 0, 100% 100%, 38% 100%);
  }

  .page-home .hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(40px, 4vw, 64px);
  }

  .page-home .hero__figure {
    max-width: none;
    justify-self: end;
  }

  .page-home .hero__figure .figure__caption {
    color: var(--paper-muted);
  }

  .page-home .home-timeline__anno {
    display: block;
    writing-mode: vertical-rl;
    font-family: var(--font-serif);
    font-size: var(--fs-12);
    letter-spacing: 0.3em;
    line-height: 1;
    padding-top: 6px;
    color: var(--ink-faint);
  }

  .page-home .taskrail {
    grid-auto-flow: row;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow: visible;
    padding-bottom: 0;
    scroll-snap-type: none;
  }
}

@media (min-width: 960px) {
  .page-home .home-index__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-home .home-timeline__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  }

  .page-home .home-mobile__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  }

  .page-home .home-help__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }
}

/* ---------- 无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-home .indexlist__item,
  .page-home .stage__item,
  .page-home .taskcard,
  .page-home .indexlist__title a {
    transition: none;
  }

  .page-home .taskcard:hover {
    transform: none;
  }
}