.page-home {
  --home-line: rgba(212, 175, 55, .18);
  --home-line-soft: rgba(212, 175, 55, .09);
  --home-blue-line: rgba(46, 197, 255, .22);
  display: block;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--font-body);
  overflow-x: hidden;
}

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

.page-home a {
  color: inherit;
}

/* ============ 首屏 ============ */
.page-home .hero {
  position: relative;
  padding: clamp(26px, 5vw, 68px) 0 clamp(40px, 6vw, 92px);
  overflow: hidden;
  border-bottom: 1px solid var(--home-line);
  background:
    radial-gradient(880px 520px at 84% 8%, rgba(212, 175, 55, .13), transparent 68%),
    radial-gradient(720px 480px at 6% 92%, rgba(138, 79, 255, .12), transparent 70%),
    var(--ink);
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--home-line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--home-line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(circle at 46% 24%, #000 34%, transparent 82%);
  mask-image: radial-gradient(circle at 46% 24%, #000 34%, transparent 82%);
  pointer-events: none;
}

.page-home .hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-home .hero__head {
  max-width: 60ch;
}

.page-home .hero__head .display--xl {
  margin: 12px 0 0;
  letter-spacing: .01em;
  line-height: 1.08;
}

.page-home .hero__lead {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 52ch;
  color: var(--bone-70);
}

.page-home .hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-home .hero__body {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

/* 项目索引 */
.page-home .hero__index-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 1px 0 0 1px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--home-line-soft);
  border: 1px solid var(--home-line);
}

.page-home .hero__index-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
  padding: 10px 11px;
  background: var(--ink-2);
  font-size: 12.5px;
  line-height: 1.4;
}

.page-home .hero__index-list a {
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .2s ease;
}

.page-home .hero__index-list a:hover,
.page-home .hero__index-list a:focus-visible {
  color: var(--gold-light);
}

.page-home .hero__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  opacity: .8;
  flex: none;
}

.page-home .hero__ms {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--blue);
  white-space: nowrap;
  flex: none;
}

/* 仪表 */
.page-home .hero__meter {
  display: grid;
  gap: 14px;
}

.page-home .hero__figure {
  border: 1px solid var(--home-line);
  box-shadow: 0 24px 60px -32px rgba(0, 0, 0, .9);
}

.page-home .hero__gauge {
  display: grid;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--home-line);
  background: linear-gradient(180deg, rgba(42, 45, 49, .55), rgba(8, 9, 12, .9));
}

.page-home .gauge {
  width: min(340px, 100%);
  height: auto;
  display: block;
  filter: drop-shadow(0 0 14px rgba(212, 175, 55, .28));
}

.page-home .hero__gauge-note {
  margin: 0;
  font-size: 12.5px;
  color: var(--bone-50);
  line-height: 1.7;
}

.page-home .hero__gauge-value {
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--gold-light);
  letter-spacing: .02em;
  margin-right: 4px;
}

.page-home .hero__gauge-unit {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--bone-50);
  padding-right: 6px;
  border-right: 1px solid var(--home-line);
  margin-right: 6px;
}

/* ============ 通用区块 ============ */
.page-home .section {
  position: relative;
  padding: clamp(46px, 7vw, 100px) 0;
}

.page-home .section__aside {
  max-width: 46ch;
  color: var(--bone-50);
  font-size: 14px;
  line-height: 1.85;
  margin: 0;
}

/* ============ 十二类项目总览带 ============ */
.page-home .belt {
  background:
    linear-gradient(180deg, rgba(42, 45, 49, .55), rgba(8, 9, 12, 0) 55%),
    var(--ink-2);
}

.page-home .belt::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--home-line), transparent);
}

.page-home .belt__filter,
.page-home .latency__switch,
.page-home .cases__filter {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .belt__count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--bone-50);
  align-self: center;
  padding-left: 4px;
}

.page-home .belt__track {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--home-line-soft);
  border: 1px solid var(--home-line);
}

.page-home .belt__card {
  position: relative;
  min-width: 0;
  padding: 18px 18px 20px;
  background: var(--ink);
  transition: background .25s ease, transform .25s ease;
}

.page-home .belt__card:hover {
  background: #101216;
  transform: translateY(-2px);
}

.page-home .belt__card[hidden] {
  display: none;
}

.page-home .belt__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold);
  opacity: .72;
}

.page-home .belt__dot {
  position: absolute;
  top: 20px;
  right: 18px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, .04);
}

.page-home .belt__dot--gold { background: var(--gold); box-shadow: 0 0 12px var(--gold); }
.page-home .belt__dot--blue { background: var(--blue); box-shadow: 0 0 12px var(--blue); }
.page-home .belt__dot--violet { background: var(--violet); box-shadow: 0 0 12px var(--violet); }

.page-home .belt__name {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--bone);
  letter-spacing: .02em;
}

.page-home .belt__ms {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--blue);
  letter-spacing: .02em;
}

.page-home .belt__unit {
  font-size: 11px;
  color: var(--bone-50);
  padding-left: 5px;
  border-left: 1px solid var(--home-line);
  margin-left: 5px;
}

.page-home .belt__desc {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--bone-50);
}

/* ============ 延迟快照 ============ */
.page-home .latency {
  background:
    radial-gradient(700px 420px at 88% 18%, rgba(46, 197, 255, .11), transparent 70%),
    radial-gradient(560px 360px at 4% 82%, rgba(138, 79, 255, .12), transparent 72%),
    var(--ink);
}

.page-home .latency__inner {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-home .latency__copy .lead {
  margin-top: 16px;
  color: var(--bone-70);
}

.page-home .latency__panels {
  margin-top: clamp(20px, 3vw, 28px);
  display: grid;
  gap: 1px;
  background: var(--home-blue-line);
  border: 1px solid var(--home-blue-line);
}

.page-home .latency__panel {
  min-width: 0;
  padding: 18px;
  background: rgba(14, 16, 20, .92);
  border-left: 2px solid var(--blue);
}

.page-home .latency__panel[hidden] {
  display: none;
}

.page-home .latency__k {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--bone-50);
}

.page-home .latency__v {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 36px);
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: .01em;
  text-shadow: 0 0 22px rgba(212, 175, 55, .35);
}

.page-home .latency__u {
  font-size: 13px;
  color: var(--bone-50);
  margin-left: 6px;
  padding-left: 6px;
  border-left: 1px solid var(--home-line);
}

.page-home .latency__note {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--bone-50);
}

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

.page-home .latency__visual .figure {
  border: 1px solid var(--home-blue-line);
}

.page-home .latency__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--home-line-soft);
  border: 1px solid var(--home-line);
}

.page-home .latency__facts li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 11px 14px;
  background: var(--ink-2);
  font-size: 13px;
}

.page-home .latency__facts-k {
  color: var(--bone-50);
}

.page-home .latency__facts-v {
  font-family: var(--font-mono);
  color: var(--gold-light);
}

/* ============ 新手三步 ============ */
.page-home .path {
  background: linear-gradient(180deg, var(--ink-2), var(--ink));
  border-top: 1px solid var(--home-line);
  border-bottom: 1px solid var(--home-line);
}

.page-home .path__steps {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 24px);
  counter-reset: none;
}

.page-home .path__step {
  position: relative;
  min-width: 0;
  padding: 22px 20px 20px;
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--gold);
  background: linear-gradient(140deg, rgba(42, 45, 49, .7), rgba(8, 9, 12, .95) 62%);
}

.page-home .path__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--home-line);
}

.page-home .path__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: clamp(18px, 3vw, 22px);
  font-weight: 700;
  color: var(--bone);
  letter-spacing: .02em;
  line-height: 1.4;
}

.page-home .path__desc {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--bone-70);
}

.page-home .path__more {
  margin-top: 14px;
  border-top: 1px dashed var(--home-line);
  padding-top: 12px;
}

.page-home .path__more summary {
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  color: var(--blue);
  letter-spacing: .02em;
}

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

.page-home .path__more summary::before {
  content: "+";
  display: inline-block;
  width: 14px;
  font-family: var(--font-mono);
  color: var(--gold);
}

.page-home .path__more[open] summary::before {
  content: "–";
}

.page-home .path__list {
  margin: 12px 0 0;
  padding: 0 0 0 18px;
  display: grid;
  gap: 8px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--bone-50);
}

/* ============ 规则速览 ============ */
.page-home .rules {
  background:
    radial-gradient(620px 380px at 12% 12%, rgba(212, 175, 55, .09), transparent 72%),
    var(--ink);
}

.page-home .rules__grid {
  margin-top: clamp(24px, 4vw, 36px);
  row-gap: 1px;
}

.page-home .rules__card {
  min-width: 0;
  padding: 18px;
  border-top: 2px solid var(--gold);
  background: rgba(14, 16, 20, .9);
}

.page-home .rules__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-home .rules__name {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--bone);
}

.page-home .rules__desc {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--bone-50);
}

.page-home .rules__meta {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--blue);
}

.page-home .rules__foot {
  display: grid;
  gap: 18px;
  margin-top: clamp(24px, 4vw, 36px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--home-line);
}

.page-home .rules__sub {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--gold-light);
}

.page-home .rules__sim p,
.page-home .rules__faq p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--bone-50);
}

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

/* ============ 案例时间轴 ============ */
.page-home .cases {
  background:
    radial-gradient(640px 420px at 78% 88%, rgba(91, 111, 90, .18), transparent 72%),
    var(--ink-2);
  border-top: 1px solid var(--home-line);
}

.page-home .timeline {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 26px 0 6px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(216px, 78%);
  gap: 0;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  border-top: 1px solid var(--home-line);
  -webkit-overflow-scrolling: touch;
}

.page-home .timeline__node {
  position: relative;
  min-width: 0;
  padding: 0 20px 0 0;
  scroll-snap-align: start;
}

.page-home .timeline__node::before {
  content: "";
  position: absolute;
  top: -27px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 12px rgba(212, 175, 55, .7);
}

.page-home .timeline__node[hidden] {
  display: none;
}

.page-home .timeline__ep {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-light);
  letter-spacing: .06em;
}

.page-home .timeline__year {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--bone-50);
}

.page-home .timeline__topic {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--bone-70);
  border-left: 1px solid var(--home-line);
  padding-left: 12px;
}

.page-home .cases__split {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(26px, 4vw, 44px);
  align-items: center;
}

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

.page-home .cases__side .lead {
  color: var(--bone-70);
  margin: 0;
}

.page-home .cases__link {
  margin: 18px 0 0;
}

/* ============ 为什么选我们 ============ */
.page-home .why {
  background: linear-gradient(180deg, var(--ink), var(--ink-2));
}

.page-home .why__grid {
  margin-top: clamp(24px, 4vw, 36px);
  row-gap: 1px;
}

.page-home .why__card {
  min-width: 0;
  padding: 20px 18px;
  background: rgba(8, 9, 12, .82);
  border-bottom: 1px solid var(--home-line);
  transition: background .25s ease;
}

.page-home .why__card:hover {
  background: rgba(20, 22, 27, .95);
}

.page-home .why__v {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 6vw, 40px);
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1;
  text-shadow: 0 0 24px rgba(212, 175, 55, .3);
}

.page-home .why__u {
  font-size: 13px;
  color: var(--bone-50);
  margin-left: 6px;
  padding-left: 6px;
  border-left: 1px solid var(--home-line);
  letter-spacing: 0;
  text-shadow: none;
}

.page-home .why__k {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--bone);
}

.page-home .why__d {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--bone-50);
}

.page-home .why__note {
  margin-top: clamp(24px, 4vw, 38px);
  padding: 20px 20px 22px;
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--violet);
  background: rgba(14, 16, 20, .7);
}

.page-home .why__note p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--bone-70);
}

.page-home .why__note-link {
  margin-top: 12px;
  font-size: 13.5px;
}

.page-home .why__note-link a {
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid var(--home-line);
  padding-bottom: 2px;
}

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

/* ============ 服务与联系 ============ */
.page-home .support {
  padding-bottom: clamp(56px, 8vw, 110px);
  background:
    radial-gradient(680px 420px at 16% 20%, rgba(212, 175, 55, .1), transparent 72%),
    var(--ink);
  border-top: 1px solid var(--home-line);
}

.page-home .support__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-home .support__copy .lead {
  margin: 16px 0 0;
  color: var(--bone-70);
  max-width: 50ch;
}

.page-home .support__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-home .support__card {
  min-width: 0;
  padding: 22px 20px;
  border: 1px solid var(--home-line);
  background: linear-gradient(150deg, rgba(42, 45, 49, .62), rgba(8, 9, 12, .95) 68%);
}

.page-home .support__title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--gold-light);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--home-line);
}

.page-home .support__list {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-home .support__row {
  display: grid;
  gap: 4px;
}

.page-home .support__row dt {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--bone-50);
  text-transform: uppercase;
}

.page-home .support__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--bone);
  word-break: break-word;
}

.page-home .support__row dd a {
  color: var(--blue);
  text-decoration: none;
}

.page-home .support__row dd a:hover {
  text-decoration: underline;
}

.page-home .support__card .copy-btn {
  margin-top: 18px;
}

.page-home .support__legal {
  margin: 16px 0 0;
  font-size: 12px;
  line-height: 1.8;
  color: var(--bone-50);
}

.page-home .support__legal a {
  color: var(--bone-70);
  text-decoration: none;
  border-bottom: 1px solid var(--home-line);
}

.page-home .support__legal a:hover {
  color: var(--gold-light);
}

/* ============ 响应式 ============ */
@media (min-width: 620px) {
  .page-home .hero__index-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .belt__track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .timeline {
    grid-auto-columns: minmax(230px, 46%);
  }

  .page-home .rules__foot {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .rules__links {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-home .hero__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-home .hero__index-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .belt__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .latency__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-home .path__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .cases__split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-home .timeline {
    grid-auto-flow: row;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    grid-auto-columns: auto;
    overflow-x: visible;
  }

  .page-home .timeline__node {
    padding-right: 16px;
  }

  .page-home .timeline__node::after {
    content: "";
    position: absolute;
    top: -23px;
    left: 12px;
    right: 0;
    height: 1px;
    background: var(--home-line);
  }

  .page-home .timeline__node:last-child::after {
    display: none;
  }

  .page-home .rules__foot {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .rules__links {
    grid-column: auto;
    align-self: end;
  }

  .page-home .support__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  }
}

@media (min-width: 1180px) {
  .page-home .hero__index-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .belt__card,
  .page-home .why__card {
    transition: none;
  }
}