.page-home {
  --home-frame-line: rgba(53, 230, 230, 0.32);
  --home-hair: rgba(247, 244, 236, 0.12);
}

/* ---------- 首屏框景 ---------- */
.page-home .hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: calc(100svh - var(--header-h));
  padding: 24px 0 40px;
  overflow: hidden;
  isolation: isolate;
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 74% 58%;
}

.page-home .hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(102deg, var(--ink) 6%, rgba(7, 11, 24, 0.9) 34%, rgba(7, 11, 24, 0.42) 68%, rgba(7, 11, 24, 0.66) 100%),
    linear-gradient(180deg, rgba(7, 11, 24, 0.85) 0%, rgba(7, 11, 24, 0) 26%, rgba(7, 11, 24, 0.72) 100%);
}

.page-home .hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
}

.page-home .hero__frame {
  position: relative;
  display: grid;
  gap: 26px;
  padding: 30px clamp(16px, 3vw, 42px) 34px;
  border: 1px solid var(--home-frame-line);
  background: linear-gradient(180deg, rgba(15, 30, 61, 0.2), rgba(7, 11, 24, 0.62));
  backdrop-filter: blur(3px);
}

.page-home .hero__corner {
  position: absolute;
  width: 15px;
  height: 15px;
  border: 1px solid var(--cyan);
  pointer-events: none;
}

.page-home .hero__corner--tl { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.page-home .hero__corner--tr { top: -1px; right: -1px; border-left: 0; border-bottom: 0; }
.page-home .hero__corner--bl { bottom: -1px; left: -1px; border-right: 0; border-top: 0; }
.page-home .hero__corner--br { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.page-home .hero__title {
  margin: 12px 0 0;
  font-size: clamp(38px, 8.6vw, 96px);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--ivory);
}

.page-home .hero__title em {
  font-style: normal;
  font-weight: 800;
  color: var(--cyan);
}

.page-home .hero__lede {
  max-width: 44ch;
  margin: 20px 0 0;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.9;
  color: rgba(247, 244, 236, 0.84);
}

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

.page-home .hero__badge {
  justify-self: start;
  display: grid;
  gap: 2px;
  padding: 12px 18px;
  border: 1px solid rgba(243, 201, 105, 0.45);
  background: rgba(7, 11, 24, 0.55);
  font-family: var(--font-mono);
}

.page-home .hero__badge-k {
  font-size: 10px;
  letter-spacing: 0.22em;
  color: rgba(247, 244, 236, 0.62);
}

.page-home .hero__badge-v {
  font-size: 26px;
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-home .hero__badge-d {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(247, 244, 236, 0.7);
}

.page-home .hero__scroll {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-self: start;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(247, 244, 236, 0.62);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}

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

@media (min-width: 900px) {
  .page-home .hero {
    padding-bottom: 56px;
  }

  .page-home .hero__frame {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    column-gap: 40px;
  }

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

  .page-home .hero__badge {
    grid-column: 2;
    grid-row: 1;
    align-self: end;
  }

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

/* ---------- 通用章节 ---------- */
.page-home .versions,
.page-home .nodes,
.page-home .data,
.page-home .trust {
  border-top: 1px solid var(--home-hair);
}

.page-home .versions__lede,
.page-home .trust__lede {
  max-width: 62ch;
  margin: 0 0 34px;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(247, 244, 236, 0.78);
}

/* ---------- 版本双轨 ---------- */
.page-home .versions__tracks {
  display: grid;
  gap: 16px;
}

.page-home .track {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 26px 22px 24px;
  border: 1px solid var(--home-hair);
  background: linear-gradient(158deg, rgba(26, 47, 90, 0.52), rgba(7, 11, 24, 0.62));
  overflow: hidden;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-home .track::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--cyan);
}

.page-home .track:hover {
  border-color: rgba(53, 230, 230, 0.55);
  transform: translateY(-2px);
}

.page-home .track--old {
  background: linear-gradient(158deg, rgba(124, 115, 150, 0.2), rgba(7, 11, 24, 0.66));
}

.page-home .track--old::before {
  background: var(--archive);
}

.page-home .track--old:hover {
  border-color: rgba(124, 115, 150, 0.6);
}

.page-home .track__title {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--ivory);
}

.page-home .track--old .track__title {
  color: var(--archive-lt);
}

.page-home .track__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.78);
}

.page-home .track--old .track__text {
  color: rgba(216, 210, 232, 0.82);
}

.page-home .track__more {
  border-top: 1px solid var(--home-hair);
  padding-top: 12px;
}

.page-home .track__more summary {
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  list-style: none;
}

.page-home .track--old .track__more summary {
  color: var(--archive-lt);
}

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

.page-home .track__more summary::after {
  content: "＋";
  margin-left: 8px;
  font-size: 12px;
}

.page-home .track__more[open] summary::after {
  content: "－";
}

.page-home .track__more p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.72);
}

.page-home .track__link {
  justify-self: start;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 230, 0.35);
  padding-bottom: 2px;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-home .track--old .track__link {
  color: var(--archive-lt);
  border-bottom-color: rgba(216, 210, 232, 0.35);
}

.page-home .track__link:hover,
.page-home .track__link:focus-visible {
  border-bottom-color: currentColor;
}

@media (min-width: 760px) {
  .page-home .versions__tracks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

/* ---------- 星图入口 ---------- */
.page-home .nodes__grid {
  display: grid;
  gap: 26px;
}

.page-home .nodes__list {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 78%;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .node {
  scroll-snap-align: start;
  position: relative;
  display: grid;
  gap: 9px;
  padding: 22px 20px 20px;
  border: 1px solid var(--home-hair);
  background: rgba(15, 30, 61, 0.52);
  text-decoration: none;
  color: var(--ivory);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-home .node::after {
  content: "";
  position: absolute;
  top: -4px;
  right: 18px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(53, 230, 230, 0.14);
}

.page-home .node:hover,
.page-home .node:focus-visible {
  border-color: var(--cyan);
  background: rgba(26, 47, 90, 0.8);
  transform: translateY(-3px);
}

.page-home .node__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-home .node__title {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
}

.page-home .node__text {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.74);
}

.page-home .node__go {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-home .nodes__aside {
  display: grid;
  gap: 18px;
}

.page-home .nodes__figure img,
.page-home .trust__figure img,
.page-home .data__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .nodes__note {
  border-left: 1px solid var(--home-frame-line);
  padding-left: 16px;
}

.page-home .nodes__note-k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-home .nodes__note-t {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.76);
}

@media (min-width: 900px) {
  .page-home .nodes__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .page-home .nodes__list {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    overflow: visible;
    padding-bottom: 0;
  }
}

/* ---------- 数据层 ---------- */
.page-home .data__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-home .data-card {
  display: grid;
  align-content: start;
  gap: 6px;
  padding: 20px 16px;
  border: 1px solid var(--home-frame-line);
  background: linear-gradient(158deg, rgba(235, 245, 255, 0.1), rgba(15, 30, 61, 0.55));
  backdrop-filter: blur(10px);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-home .data-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 20px 44px rgba(4, 7, 15, 0.55);
}

.page-home .data-card__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.4vw, 42px);
  line-height: 1;
  color: var(--cyan);
}

.page-home .data-card__label {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-home .data-card__text {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.76);
}

.page-home .data__figure {
  margin: 0;
  grid-column: span 2;
}

.page-home .data__strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 22px;
  padding: 16px 18px;
  border: 1px solid var(--home-hair);
  background: rgba(15, 30, 61, 0.4);
  font-size: 13px;
}

.page-home .data__strip-k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: rgba(247, 244, 236, 0.55);
}

.page-home .data__strip-v {
  color: var(--ivory);
}

.page-home .data__strip-sep {
  width: 1px;
  height: 14px;
  background: var(--home-hair);
}

@media (min-width: 760px) {
  .page-home .data__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
  }

  .page-home .data__figure {
    grid-column: span 2;
    grid-row: span 1;
    align-self: stretch;
  }
}

/* ---------- 信任展签 ---------- */
.page-home .trust__grid {
  display: grid;
  gap: 30px;
}

.page-home .trust__plates {
  display: grid;
  gap: 12px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-home .plate {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid rgba(243, 201, 105, 0.24);
  border-left: 3px solid var(--gold);
  background: linear-gradient(120deg, rgba(242, 232, 213, 0.07), rgba(7, 11, 24, 0.4));
}

.page-home .plate__no {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-home .plate__title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ivory);
}

.page-home .plate__meta {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.74);
}

.page-home .trust__link {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 230, 0.4);
  padding-bottom: 3px;
  transition: border-color 0.3s var(--ease);
}

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

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

@media (min-width: 900px) {
  .page-home .trust__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 48px;
    align-items: center;
  }
}

/* ---------- 收束 ---------- */
.page-home .outro {
  position: relative;
  padding: clamp(56px, 9vw, 116px) 0;
  border-top: 1px solid var(--home-hair);
  background:
    radial-gradient(120% 90% at 82% 20%, rgba(53, 230, 230, 0.12), rgba(7, 11, 24, 0) 62%),
    linear-gradient(180deg, var(--ink), var(--space) 62%, var(--ink));
  overflow: hidden;
}

.page-home .outro::before {
  content: "";
  position: absolute;
  top: 50%;
  right: -120px;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(53, 230, 230, 0.18);
  border-radius: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

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

.page-home .outro__title {
  margin: 10px 0 0;
  font-size: clamp(28px, 4.6vw, 54px);
  font-weight: 300;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-home .outro__lede {
  max-width: 50ch;
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(247, 244, 236, 0.78);
}

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

.page-home .outro__note {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(247, 244, 236, 0.6);
}

.page-home .outro__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 230, 0.35);
}

.page-home .outro__note a:hover,
.page-home .outro__note a:focus-visible {
  border-bottom-color: var(--cyan);
}

@media (prefers-reduced-motion: reduce) {
  .page-home .node,
  .page-home .data-card,
  .page-home .track,
  .page-home .hero__scroll {
    transition: none;
  }

  .page-home .node:hover,
  .page-home .node:focus-visible,
  .page-home .data-card:hover,
  .page-home .track:hover {
    transform: none;
  }
}

</main>