.page-home {
  background-color: var(--bg);
  color: var(--fg);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 96px 0 68px;
  background-color: var(--deep-space);
  color: var(--paper);
}

.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;
  opacity: 0.5;
}

.page-home .hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(91, 63, 214, 0.48), transparent 62%),
    linear-gradient(150deg, rgba(11, 27, 58, 0.95) 0%, rgba(11, 27, 58, 0.6) 55%, rgba(11, 27, 58, 0.97) 100%);
}

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

.page-home .hero__context {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 0 0 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-home .hero__context span + span {
  padding-left: 14px;
  border-left: 1px solid rgba(201, 210, 227, 0.32);
}

.page-home .hero__grid {
  display: grid;
  gap: 44px;
}

.page-home .hero__title {
  margin: 18px 0 0;
  font-size: clamp(2rem, 7.6vw, 4.5rem);
  font-weight: 200;
  line-height: 1.07;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-home .hero__summary {
  max-width: 38ch;
  margin: 26px 0 32px;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.76);
}

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

.page-home .hero__entries {
  padding-top: 4px;
}

.page-home .hero__entries-label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-home .entry {
  position: relative;
  display: block;
  padding: 20px 30px 20px 60px;
  border-top: 1px solid rgba(201, 210, 227, 0.24);
  text-decoration: none;
  color: inherit;
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .entry:last-of-type {
  border-bottom: 1px solid rgba(201, 210, 227, 0.24);
}

.page-home .entry::after {
  content: "→";
  position: absolute;
  top: 20px;
  right: 4px;
  font-size: 0.9rem;
  color: var(--silver);
  opacity: 0.55;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .entry__num {
  position: absolute;
  left: 0;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--signal);
}

.page-home .entry__title {
  display: block;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

.page-home .entry__text {
  display: block;
  margin-top: 6px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(201, 210, 227, 0.8);
}

.page-home .entry:hover,
.page-home .entry:focus-visible {
  background-color: rgba(91, 63, 214, 0.2);
  transform: translateX(4px);
}

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

.page-home .entry:hover::after,
.page-home .entry:focus-visible::after {
  color: var(--signal);
  transform: translateX(4px);
}

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

/* ---------- 设备场景 ---------- */

.page-home .cross {
  background-color: var(--paper);
  background-image: radial-gradient(75% 55% at 92% 0%, rgba(91, 63, 214, 0.1), transparent 70%);
}

.page-home .cross__head {
  max-width: 720px;
  margin-bottom: 44px;
}

.page-home .cross__body {
  display: grid;
  gap: 36px;
}

.page-home .cross__panels {
  display: grid;
  gap: 14px;
}

.page-home .cross__panel {
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--nebula);
  border-radius: var(--radius-sharp);
  background-color: rgba(255, 255, 255, 0.6);
}

.page-home .cross__panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  margin-bottom: 10px;
}

.page-home .cross__panel-title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .cross__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-home .cross__panel-text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--rock);
}

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

/* ---------- 栏目 ---------- */

.page-home .topics {
  background-color: var(--orbit-blue);
  color: var(--paper);
}

.page-home .topics__inner {
  display: grid;
  gap: 40px;
}

.page-home .topics .index-tag {
  color: var(--silver);
}

.page-home .topics .section-title {
  color: var(--paper);
}

.page-home .topics__lede {
  margin: 18px 0 26px;
  max-width: 40ch;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.78);
}

.page-home .topics__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(201, 210, 227, 0.24);
}

.page-home .topics__item a {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  grid-template-areas:
    "num name"
    "num desc";
  column-gap: 14px;
  row-gap: 4px;
  padding: 18px 0;
  border-bottom: 1px solid rgba(201, 210, 227, 0.24);
  text-decoration: none;
  color: inherit;
}

.page-home .topics__num {
  grid-area: num;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver);
}

.page-home .topics__name {
  grid-area: name;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

.page-home .topics__desc {
  grid-area: desc;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(201, 210, 227, 0.78);
}

.page-home .topics__item a:hover .topics__name,
.page-home .topics__item a:focus-visible .topics__name {
  color: var(--signal);
}

/* ---------- 数据 ---------- */

.page-home .proof {
  background-color: var(--paper);
}

.page-home .proof__head {
  max-width: 680px;
  margin-bottom: 38px;
}

.page-home .proof__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0 0 32px;
  border: 1px solid var(--line);
  background-color: var(--line);
}

.page-home .proof__stat {
  padding: 22px 18px;
  background-color: var(--paper);
}

.page-home .proof__stat dt {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-home .proof__stat dd {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 0;
  flex-wrap: wrap;
}

.page-home .proof__num {
  font-size: clamp(1.9rem, 6vw, 2.6rem);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--deep-space);
}

.page-home .proof__unit {
  font-size: 0.8125rem;
  color: var(--rock);
}

.page-home .proof__note {
  margin: 0;
  max-width: 62ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--rock);
}

.page-home .proof__note a {
  color: var(--nebula);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 收束 ---------- */

.page-home .home-final {
  background-color: var(--paper);
}

.page-home .home-final__figure {
  margin: 0 0 40px;
}

.page-home .home-final__grid {
  display: grid;
  gap: 34px;
}

.page-home .home-final__links {
  display: grid;
  align-content: start;
  border-top: 1px solid var(--line);
}

.page-home .home-final__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.9375rem;
  color: var(--ink);
  text-decoration: none;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-home .home-final__links a::after {
  content: "→";
  color: var(--nebula);
}

.page-home .home-final__links a:hover,
.page-home .home-final__links a:focus-visible {
  color: var(--nebula);
  padding-left: 6px;
}

.page-home .home-final__contact {
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--rock);
  word-break: break-word;
}

.page-home .home-final__contact p {
  margin: 0 0 10px;
}

.page-home .home-final__contact-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clay);
}

.page-home .home-final__meta {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-home .proof__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-home .hero {
    padding: 120px 0 96px;
  }

  .page-home .hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }

  .page-home .hero__entries {
    padding-top: 56px;
  }

  .page-home .hero__title {
    margin-top: 22px;
  }

  .page-home .cross__body {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-home .cross__panels {
    gap: 16px;
  }

  .page-home .topics__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 64px;
    align-items: start;
  }

  .page-home .topics__aside {
    position: sticky;
    top: 104px;
  }

  .page-home .topics__item a {
    grid-template-columns: 52px minmax(0, 1fr);
    padding: 20px 0;
  }

  .page-home .home-final__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 48px;
  }

  .page-home .home-final__links {
    border-top: 1px solid var(--line);
  }
}

@media (min-width: 1440px) {
  .page-home .hero__rail {
    display: flex;
    position: fixed;
    top: 46%;
    right: 24px;
    z-index: 15;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 86px;
    padding: 18px 10px;
    text-align: center;
    border: 1px solid rgba(201, 210, 227, 0.3);
    border-radius: var(--radius-capsule);
    background-color: rgba(11, 27, 58, 0.8);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }

  .page-home .hero__rail-link {
    font-size: 0.8125rem;
    line-height: 1.4;
    color: var(--paper);
    text-decoration: none;
    transition: color var(--dur) var(--ease);
  }

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

  .page-home .hero__rail-note {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--silver);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry,
  .page-home .entry::after,
  .page-home .topics__name,
  .page-home .home-final__links a,
  .page-home .hero__rail-link {
    transition: none;
  }

  .page-home .entry:hover,
  .page-home .entry:focus-visible {
    transform: none;
  }
}