.page-home {
  --home-glow:
    radial-gradient(110% 70% at 82% 6%, rgba(47, 227, 198, .20), transparent 62%),
    radial-gradient(90% 60% at 6% 92%, rgba(255, 122, 51, .13), transparent 66%),
    radial-gradient(70% 50% at 40% 40%, rgba(10, 58, 71, .55), transparent 70%);
  --home-gap: clamp(56px, 9vw, 112px);
  --home-band-a: linear-gradient(90deg, var(--aurora), var(--glow));
  --home-band-b: linear-gradient(90deg, var(--glow), var(--aurora), var(--lime));
  --home-band-c: linear-gradient(90deg, var(--lime), var(--aurora));
  --home-band-d: linear-gradient(90deg, var(--aurora), var(--amber));
  --home-band-e: linear-gradient(90deg, var(--amber), var(--aurora));
  --home-band-f: linear-gradient(90deg, var(--amber), var(--lime));
  --home-band-g: linear-gradient(90deg, var(--aurora), var(--amber), var(--lime));
  color: var(--white);
}

/* ---------- 色带 ---------- */
.page-home .rule-band {
  height: 4px;
  width: 100%;
  border: 0;
  margin: 0;
}
.page-home .rule-band--a { background: var(--home-band-a); }
.page-home .rule-band--b { background: var(--home-band-b); }
.page-home .rule-band--c { background: var(--home-band-c); }
.page-home .rule-band--d { background: var(--home-band-d); }
.page-home .rule-band--e { background: var(--home-band-e); }
.page-home .rule-band--f { background: var(--home-band-f); }
.page-home .rule-band--g { background: var(--home-band-g); }

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  padding: clamp(36px, 6vw, 80px) 0 clamp(28px, 4vw, 48px);
  isolation: isolate;
  overflow: hidden;
}
.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--home-glow);
  z-index: -1;
  pointer-events: none;
}
.page-home .hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}
.page-home .hero__eyebrow {
  display: block;
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
}
.page-home .hero__eyebrow .mono {
  color: var(--aurora);
}
.page-home .hero__title {
  margin: 0 0 20px;
  font-size: clamp(32px, 5.6vw, 74px);
  line-height: 1.08;
  letter-spacing: -.02em;
  font-weight: 300;
  color: var(--white);
}
.page-home .hero__lead {
  margin: 0 0 26px;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}
.page-home .hero__lines {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 1px;
  border-top: 1px solid var(--grid);
}
.page-home .hero__line {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 2px;
  border-bottom: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
}
.page-home .hero__line-num {
  flex: 0 0 auto;
  min-width: 46px;
  font-size: 17px;
  color: var(--lime);
  letter-spacing: .02em;
}
.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .hero__visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--grid);
  background: linear-gradient(165deg, var(--glow), var(--ink) 72%);
  aspect-ratio: 4 / 5;
  max-height: 620px;
}
.page-home .hero__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
}
.page-home .hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(190deg, rgba(6, 23, 38, .35) 0%, rgba(6, 23, 38, .88) 78%),
    radial-gradient(80% 60% at 78% 12%, rgba(47, 227, 198, .22), transparent 62%);
  pointer-events: none;
}
.page-home .hero__skyline {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.page-home .hero__ridge--far {
  fill: rgba(13, 42, 68, .55);
  stroke: url(#homeRidgeCool);
  stroke-width: 1;
}
.page-home .hero__ridge--near {
  fill: rgba(6, 23, 38, .72);
  stroke: url(#homeRidgeWarm);
  stroke-width: 1.4;
}
.page-home .hero__node {
  fill: var(--amber);
  stroke: var(--lime);
  stroke-width: 1;
}

/* ---------- 章节索引条 ---------- */
.page-home .chapter-strip {
  margin-top: clamp(30px, 4vw, 52px);
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}
.page-home .chapter-strip__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-home .chapter-strip__list li {
  flex: 0 0 auto;
}
.page-home .chapter-strip__list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 14px;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  white-space: nowrap;
}
.page-home .chapter-strip__list a .mono {
  color: var(--lime);
  font-size: 12px;
  letter-spacing: .08em;
}
.page-home .chapter-strip__list a:hover,
.page-home .chapter-strip__list a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--aurora);
}

/* ---------- 通用章节 ---------- */
.page-home .section {
  position: relative;
  padding: var(--home-gap) 0;
}
.page-home .section__head {
  max-width: 760px;
  margin: 0 0 clamp(26px, 4vw, 46px);
}
.page-home .section__index {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--lime);
}
.page-home .section__title {
  margin: 0 0 14px;
  font-size: clamp(25px, 3.6vw, 42px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-home .section__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}
.page-home .link-more {
  display: inline-block;
  border-bottom: 1px solid var(--aurora);
  padding-bottom: 2px;
  font-size: 14px;
  color: var(--aurora-soft);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-home .link-more:hover,
.page-home .link-more:focus-visible {
  color: var(--white);
  border-bottom-color: var(--lime);
}

/* ---------- 01 换设备 ---------- */
.page-home .home-switch .board {
  border: 1px solid var(--grid);
  background: var(--panel);
  padding: clamp(20px, 3.4vw, 38px);
}
.page-home .home-switch .board__summary {
  margin: 0 0 26px;
  max-width: 72ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--white);
  border-left: 3px solid var(--aurora);
  padding-left: 16px;
}
.page-home .home-switch .board__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}
.page-home .home-switch .board__cell {
  background: var(--ink);
  padding: 22px 20px;
}
.page-home .home-switch .board__label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}
.page-home .board__cell-title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--white);
}
.page-home .board__cell-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-home .home-switch .board__terms {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
}
.page-home .home-switch .board__more {
  margin: 20px 0 0;
}

/* ---------- 02 服务清单 ---------- */
.page-home .svc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-home .svc-card {
  position: relative;
  border: 1px solid var(--grid);
  background: linear-gradient(180deg, var(--panel), var(--ink));
  padding: 22px 20px 20px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-home .svc-card:hover,
.page-home .svc-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--aurora);
}
.page-home .svc-card__num {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--lime);
}
.page-home .svc-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--white);
}
.page-home .svc-card__text {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-home .svc-card__sub {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--aurora-soft);
  border-top: 1px dashed var(--grid);
  padding-top: 12px;
}
.page-home .svc-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 34px 0 0;
}
.page-home .svc-foot__hint {
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 03 地标索引 ---------- */
.page-home .landmark-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
}
.page-home .landmark-figure {
  margin: 0;
  border: 1px solid var(--grid);
  overflow: hidden;
  background: var(--panel);
}
.page-home .landmark-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .tagcloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.page-home .tag {
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-home .tag:hover,
.page-home .tag:focus-visible {
  transform: translateY(-4px);
  border-color: var(--aurora);
  color: var(--white);
}
.page-home .city-grid {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.page-home .city-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid var(--grid);
  background: var(--panel);
  padding: 14px 15px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-home .city-card:hover,
.page-home .city-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--aurora);
}
.page-home .city-card__name {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}
.page-home .city-card__meta {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}
.page-home .landmark-note {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
  max-width: 62ch;
}
.page-home .landmark-more {
  margin: 0;
}

/* ---------- 04 两端对照 ---------- */
.page-home .ends-figure {
  margin: 0 0 clamp(22px, 3vw, 36px);
  border: 1px solid var(--grid);
  overflow: hidden;
  background: var(--panel);
}
.page-home .ends-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .cmp-wrap {
  overflow-x: auto;
  border: 1px solid var(--grid);
}
.page-home .cmp {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}
.page-home .cmp th,
.page-home .cmp td {
  text-align: left;
  padding: 15px 16px;
  border-bottom: 1px solid var(--grid);
  vertical-align: top;
  line-height: 1.7;
}
.page-home .cmp thead th {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--lime);
  background: var(--glow);
  font-family: var(--font-mono);
  font-weight: 400;
}
.page-home .cmp tbody th {
  width: 22%;
  font-weight: 500;
  color: var(--white);
  background: var(--panel);
}
.page-home .cmp tbody td {
  color: var(--muted);
  background: var(--ink);
}
.page-home .cmp tbody tr:hover td {
  color: var(--white);
}
.page-home .cmp__th--mob {
  color: var(--aurora) !important;
}
.page-home .ends-note {
  margin: 22px 0 0;
  max-width: 66ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 05 时间轴 ---------- */
.page-home .timeline-figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
  border: 1px solid var(--grid);
  overflow: hidden;
  background: var(--panel);
}
.page-home .timeline-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-home .tl {
  list-style: none;
  margin: 0 0 26px;
  padding: 0 0 0 26px;
  position: relative;
}
.page-home .tl::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--amber), var(--aurora) 55%, var(--grid));
}
.page-home .tl__item {
  position: relative;
  padding: 0 0 26px;
}
.page-home .tl__item:last-child {
  padding-bottom: 0;
}
.page-home .tl__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 11px;
  height: 11px;
  background: var(--ink);
  border: 2px solid var(--amber);
  transform: rotate(45deg);
  transition: border-color var(--dur) var(--ease);
}
.page-home .tl__item:hover::before,
.page-home .tl__item:focus-within::before {
  border-color: var(--aurora);
}
.page-home .tl__item--ends::before {
  border-color: var(--grid);
}
.page-home .tl__date {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--lime);
}
.page-home .tl__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--white);
}
.page-home .tl__text {
  margin: 0;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}
.page-home .timeline-more {
  margin: 0;
}

/* ---------- 06 旧入口 ---------- */
.page-home .legacy-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}
.page-home .legacy-panel__body {
  background: var(--panel);
  padding: clamp(22px, 3.4vw, 40px);
}
.page-home .legacy-panel__body .section__head {
  margin-bottom: 20px;
}
.page-home .legacy-list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
}
.page-home .legacy-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  padding: 12px 0;
  border-top: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}
.page-home .legacy-list li:last-child {
  border-bottom: 1px solid var(--grid);
}
.page-home .legacy-list__k {
  flex: 0 0 84px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--amber);
}
.page-home .legacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-home .legacy-panel__aside {
  background: var(--ink);
  padding: clamp(22px, 3.4vw, 40px);
  border-left: 3px solid var(--amber);
}
.page-home .legacy-panel__tag {
  margin: 0 0 16px;
}
.page-home .legacy-panel__text {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.page-home .legacy-panel__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--aurora-soft);
  border-top: 1px dashed var(--grid);
  padding-top: 16px;
}

/* ---------- 下一页入口 ---------- */
.page-home .home-next {
  padding-bottom: clamp(48px, 7vw, 96px);
}
.page-home .home-next .rule-band--g {
  margin-bottom: clamp(30px, 4vw, 52px);
}
.page-home .next-head {
  max-width: 640px;
}
.page-home .next-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}
.page-home .next-card {
  border: 1px solid var(--grid);
  background: var(--panel);
  padding: 22px 20px;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-home .next-card:hover,
.page-home .next-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--aurora);
}
.page-home .next-card__idx {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--lime);
}
.page-home .next-card__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
}
.page-home .next-card__title a {
  color: var(--white);
  text-decoration: none;
  border-bottom: 1px solid var(--grid);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-home .next-card__title a:hover,
.page-home .next-card__title a:focus-visible {
  color: var(--aurora-soft);
  border-bottom-color: var(--aurora);
}
.page-home .next-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

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

@media (min-width: 720px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(30px, 4vw, 60px);
  }
  .page-home .hero__visual {
    aspect-ratio: 6 / 7;
  }
  .page-home .home-switch .board__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .svc-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .city-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-home .landmark-layout {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-home .svc-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-home .svc-card:nth-child(3n + 2) {
    margin-top: 24px;
  }
  .page-home .svc-grid {
    padding-bottom: 24px;
  }
  .page-home .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-home .next-card:nth-child(2n) {
    margin-top: 22px;
  }
  .page-home .next-grid {
    padding-bottom: 22px;
  }
  .page-home .legacy-panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }
  .page-home .landmark-figure {
    position: sticky;
    top: 96px;
  }
}

@media (max-width: 719px) {
  .page-home .hero__title {
    font-size: clamp(28px, 8vw, 40px);
  }
  .page-home .hero__line {
    font-size: 13px;
  }
  .page-home .cmp {
    min-width: 520px;
  }
  .page-home .cmp tbody th {
    width: 30%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .svc-card,
  .page-home .city-card,
  .page-home .next-card,
  .page-home .tag,
  .page-home .tl__item::before {
    transition: none;
  }
  .page-home .svc-card:hover,
  .page-home .city-card:hover,
  .page-home .next-card:hover,
  .page-home .tag:hover {
    transform: none;
  }
}
</main>