.page-home {
  --home-gap: clamp(16px, 2.2vw, 28px);
  --home-pad: clamp(20px, 2.8vw, 32px);
  color: var(--c-paper);
  padding-bottom: clamp(40px, 6vw, 90px);
  overflow-x: hidden;
  background:
    radial-gradient(90% 60% at 78% -8%, rgba(31, 107, 255, .3) 0%, rgba(31, 107, 255, 0) 62%),
    linear-gradient(168deg, #0B1033 0%, #101a4e 46%, #080A14 100%);
}

/* ---------- 首屏索引台 ---------- */
.page-home .board {
  position: relative;
  padding: clamp(22px, 4vw, 46px) 0 clamp(34px, 6vw, 76px);
  isolation: isolate;
}

.page-home .board::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(167, 176, 200, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 176, 200, .09) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(82% 72% at 42% 18%, #000 0%, transparent 76%);
  mask-image: radial-gradient(82% 72% at 42% 18%, #000 0%, transparent 76%);
}

.page-home .board__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .board__intro {
  position: relative;
  background: var(--c-paper);
  color: var(--c-ink);
  border: var(--edge);
  border-radius: var(--r-l);
  box-shadow: var(--lift);
  padding: clamp(22px, 3.2vw, 38px);
}

.page-home .stamp {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  background: var(--c-yellow);
  color: var(--c-ink);
  border: 2px solid var(--c-print);
  border-radius: var(--r-pill);
  padding: 5px 13px;
  transform: rotate(-1.6deg);
  margin-bottom: 16px;
}

.page-home .board__title {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(29px, 4.8vw, 52px);
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--c-ink);
}

.page-home .hl {
  background: linear-gradient(180deg, transparent 58%, rgba(255, 201, 60, .78) 58%, rgba(255, 201, 60, .78) 92%, transparent 92%);
  padding: 0 .06em;
}

.page-home .board__lead {
  margin: 0 0 22px;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.75;
  color: #2b3050;
}

.page-home .board__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.page-home .btn-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border: 2px solid var(--c-ink);
  border-radius: var(--r-pill);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  color: var(--c-ink);
  background: transparent;
  text-decoration: none;
  transition: background .18s ease, color .18s ease;
}

.page-home .btn-line:hover,
.page-home .btn-line:focus-visible {
  background: var(--c-ink);
  color: var(--c-paper);
}

.page-home .path {
  list-style: none;
  margin: 0;
  padding: 18px 0 0;
  border-top: 2px dashed rgba(16, 20, 38, .2);
  display: grid;
  gap: 12px;
}

.page-home .path__step {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.6;
  color: #2b3050;
}

.page-home .path__num {
  flex: none;
  margin-top: 1px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--c-paper);
  background: var(--c-blue);
  border-radius: 6px;
  padding: 3px 8px;
}

.page-home .board__stack {
  display: grid;
  gap: var(--home-gap);
}

.page-home .idx {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--home-pad);
  border: var(--edge);
  border-radius: var(--r-m);
  box-shadow: var(--lift);
  background: var(--c-paper);
  color: var(--c-ink);
  text-decoration: none;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}

.page-home .idx:hover,
.page-home .idx:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--lift-hi);
}

.page-home .idx--orange {
  background: var(--c-orange);
  color: var(--c-ink);
}

.page-home .idx__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  opacity: .72;
}

.page-home .idx__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.16;
  letter-spacing: -.01em;
}

.page-home .idx__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.68;
  opacity: .86;
}

.page-home .idx__go {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
}

.page-home .idx__fig {
  margin: calc(var(--home-pad) * -1) calc(var(--home-pad) * -1) 10px;
  border-bottom: var(--edge);
  background: var(--c-indigo-2);
  overflow: hidden;
}

.page-home .idx__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  max-width: 100%;
}

.page-home .board__rail {
  background: linear-gradient(180deg, rgba(26, 36, 97, .94), rgba(11, 16, 51, .94));
  border: 1px solid rgba(167, 176, 200, .28);
  border-radius: var(--r-m);
  padding: clamp(18px, 2.4vw, 24px);
  box-shadow: 0 18px 40px rgba(4, 6, 20, .45);
}

.page-home .rail__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 15px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(167, 176, 200, .34);
}

.page-home .rail__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 17px;
  color: var(--c-paper);
}

.page-home .rail__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-yellow);
}

.page-home .rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 15px;
}

.page-home .rail__item {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid rgba(31, 107, 255, .6);
}

.page-home .rail__ver {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-mist);
}

.page-home .rail__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.62;
  color: var(--c-paper);
}

.page-home .rail__all {
  display: inline-block;
  margin-top: 20px;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--c-yellow);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 201, 60, .45);
}

/* ---------- 通用区块头 ---------- */
.page-home .section {
  padding: clamp(42px, 6vw, 84px) 0;
}

.page-home .sec-head {
  max-width: 42em;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-home .sec-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 3.6vw, 40px);
  line-height: 1.08;
  letter-spacing: -.015em;
  color: var(--c-paper);
}

.page-home .sec-head p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-mist);
}

/* ---------- 六类索引矩阵 ---------- */
.page-home .cats__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-paper);
  color: var(--c-ink);
  border: var(--edge);
  border-radius: var(--r-m);
  box-shadow: var(--lift);
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.page-home .cat:hover,
.page-home .cat:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: var(--lift-hi);
}

.page-home .cat--orange {
  background: var(--c-orange);
  color: var(--c-ink);
}

.page-home .cat--blue {
  background: var(--c-blue);
  color: var(--c-paper);
}

.page-home .cat__num {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  background: rgba(16, 20, 38, .1);
  color: var(--c-ink);
}

.page-home .cat--blue .cat__num {
  background: rgba(247, 243, 234, .22);
  color: var(--c-paper);
}

.page-home .cat__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-home .cat__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  opacity: .88;
}

.page-home .cat__go {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .04em;
  opacity: .9;
}

/* ---------- 大屏登录 ---------- */
.page-home .bigscreen__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-home .bigscreen__copy h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--c-paper);
}

.page-home .bigscreen__lead {
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-home .steps {
  counter-reset: step;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .steps li {
  counter-increment: step;
  position: relative;
  padding-left: 44px;
  font-size: 15px;
  line-height: 1.66;
  color: var(--c-paper);
}

.page-home .steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--c-yellow);
  background: rgba(31, 107, 255, .16);
  border: 1px solid rgba(31, 107, 255, .55);
  border-radius: 9px;
}

.page-home .bigscreen__media {
  margin: 0;
  border: var(--edge);
  border-radius: var(--r-m);
  box-shadow: var(--lift);
  background: var(--c-indigo-2);
  overflow: hidden;
}

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

/* ---------- 服务范围速览 ---------- */
.page-home .coverage {
  position: relative;
  margin: clamp(26px, 4vw, 52px) 0;
  border-top: var(--edge);
  border-bottom: var(--edge);
  overflow: hidden;
  isolation: isolate;
}

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

.page-home .coverage__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .34;
}

.page-home .coverage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(102deg, rgba(11, 16, 51, .97) 0%, rgba(11, 16, 51, .86) 46%, rgba(26, 36, 97, .58) 100%);
}

.page-home .coverage__inner {
  position: relative;
  z-index: 2;
  padding: clamp(38px, 6vw, 78px) var(--gutter);
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin: 0 auto;
}

.page-home .coverage__inner h2 {
  margin: 0 0 6px;
  max-width: 20em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 3.6vw, 40px);
  line-height: 1.09;
  letter-spacing: -.015em;
  color: var(--c-paper);
}

.page-home .coverage__stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 52px);
  margin: clamp(18px, 3vw, 28px) 0;
  padding: clamp(16px, 2.4vw, 22px) 0;
  border-top: 1px dashed rgba(167, 176, 200, .34);
  border-bottom: 1px dashed rgba(167, 176, 200, .34);
}

.page-home .stat__num {
  display: block;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 4.4vw, 48px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-yellow);
}

.page-home .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--c-mist);
}

.page-home .coverage__text {
  margin: 0 0 24px;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-paper);
}

/* ---------- 联系与支持 ---------- */
.page-home .contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-home .contact__main h2 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(25px, 3.4vw, 38px);
  line-height: 1.1;
  letter-spacing: -.015em;
  color: var(--c-paper);
}

.page-home .contact__lead {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-home .contact__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .contact__list li {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: rgba(247, 243, 234, .05);
  border: 1px solid rgba(167, 176, 200, .24);
  border-radius: var(--r-s);
}

.page-home .contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-mist);
}

.page-home .contact__val {
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--c-paper);
  word-break: break-word;
}

.page-home .contact__media {
  margin: 0;
  border: var(--edge);
  border-radius: var(--r-m);
  box-shadow: var(--lift);
  overflow: hidden;
  background: var(--c-indigo-2);
}

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

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-home .cats__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-home .board__grid {
    grid-template-columns: repeat(12, 1fr);
    align-items: start;
  }

  .page-home .board__intro {
    grid-column: 1 / 6;
  }

  .page-home .board__stack {
    grid-column: 6 / 10;
    margin-top: 42px;
  }

  .page-home .board__rail {
    grid-column: 10 / 13;
    margin-top: 88px;
  }

  .page-home .bigscreen__grid {
    grid-template-columns: 1.04fr .96fr;
  }

  .page-home .contact__grid {
    grid-template-columns: 1.1fr .9fr;
  }
}

@media (min-width: 1000px) {
  .page-home .cats__grid {
    grid-template-columns: repeat(12, 1fr);
    align-items: stretch;
  }

  .page-home .cat:nth-child(1) {
    grid-column: 1 / 6;
  }

  .page-home .cat:nth-child(2) {
    grid-column: 6 / 10;
    margin-top: 26px;
  }

  .page-home .cat:nth-child(3) {
    grid-column: 10 / 13;
  }

  .page-home .cat:nth-child(4) {
    grid-column: 1 / 4;
  }

  .page-home .cat:nth-child(5) {
    grid-column: 4 / 9;
    margin-top: 18px;
  }

  .page-home .cat:nth-child(6) {
    grid-column: 9 / 13;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .idx,
  .page-home .cat,
  .page-home .btn-line {
    transition: none;
  }

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

  .page-home .stamp {
    transform: none;
  }
}