.page-home{
  overflow-x: clip;
}

.page-home a:focus-visible,
.page-home summary:focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-home .home-hero{
  position: relative;
  padding-top: clamp(1.5rem, 4vw, 2.4rem);
  padding-bottom: clamp(2.6rem, 7vw, 5rem);
}
.page-home .home-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(58% 48% at 80% 16%, rgba(122,92,255,.22), transparent 70%),
    radial-gradient(44% 38% at 90% 74%, rgba(255,123,197,.13), transparent 72%);
}
.page-home .home-hero__inner{
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 3.5rem);
}
.page-home .home-h1{
  margin: .7rem 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.15rem, 8vw, 4.2rem);
  line-height: 1.1;
  letter-spacing: .015em;
  color: var(--ink);
  text-wrap: balance;
}
.page-home .home-hero__lede{
  margin: 0 0 clamp(1.6rem, 4vw, 2.2rem);
  max-width: 34em;
  font-size: 1.0625rem;
  line-height: 1.9;
  color: var(--ink-2);
}

.page-home .home-paths{
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 36rem;
  border-top: 1px solid var(--line-soft);
}
.page-home .home-paths__item{
  border-bottom: 1px solid var(--line-soft);
}
.page-home .home-paths__link{
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: .2rem .8rem;
  padding: .9rem 0;
  text-decoration: none;
  color: var(--ink);
  transition: color .16s var(--ease);
}
.page-home .home-paths__num{
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--violet);
  padding-top: .38rem;
  transition: color .16s var(--ease);
}
.page-home .home-paths__label{
  display: block;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: .01em;
}
.page-home .home-paths__note{
  display: block;
  margin-top: .25rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink-2);
}
.page-home .home-paths__link:hover .home-paths__label,
.page-home .home-paths__link:focus-visible .home-paths__label{
  color: var(--gold-soft);
}
.page-home .home-paths__link:hover .home-paths__num{
  color: var(--gold);
}

.page-home .home-hero__sky{
  position: relative;
  aspect-ratio: 16 / 10;
  min-height: 14rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  background: radial-gradient(72% 72% at 50% 42%, rgba(20,16,51,.92), var(--void) 76%);
  overflow: hidden;
}
.page-home .home-sky__image{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  border-radius: inherit;
  opacity: .62;
}
.page-home .home-sky__orbit{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.page-home .home-sky__node{
  display: none;
  position: absolute;
  align-items: center;
  gap: .35rem;
  padding: .26rem .62rem;
  border-radius: 999px;
  border: 1px solid var(--line-soft);
  background: rgba(5,7,15,.82);
  color: var(--ink-2);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .16s var(--ease), color .16s var(--ease), box-shadow .16s var(--ease);
}
.page-home .home-sky__num{
  color: var(--violet);
  transition: color .16s var(--ease);
}
.page-home .home-sky__node:hover{
  border-color: var(--gold);
  color: var(--gold-soft);
  box-shadow: 0 0 0 1px rgba(245,195,107,.24);
}
.page-home .home-sky__node:hover .home-sky__num{
  color: var(--gold);
}
.page-home .home-sky__node--1{ left: 4%; top: 63%; }
.page-home .home-sky__node--2{ left: 15%; top: 40%; }
.page-home .home-sky__node--3{ left: 32%; top: 20%; }
.page-home .home-sky__node--4{ left: 53%; top: 24%; }
.page-home .home-sky__node--5{ left: 68%; top: 47%; }
.page-home .home-sky__node--6{ right: 3%; bottom: 14%; }

/* ---------- 章节通用 ---------- */
.page-home .home-section{
  position: relative;
  padding-block: clamp(2.4rem, 6vw, 4.4rem);
}
.page-home .home-section + .home-section{
  border-top: 1px solid var(--line-soft);
}
.page-home .home-section__head{
  max-width: 62ch;
  margin-bottom: clamp(1.5rem, 4vw, 2.3rem);
}
.page-home .home-section__lede{
  margin: .85rem 0 0;
  font-size: 1rem;
  line-height: 1.9;
  color: var(--ink-2);
}
.page-home .home-path{
  display: flex;
  align-items: baseline;
  gap: .7rem;
  margin: 0 0 .35rem;
}
.page-home .home-path__idx{
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--violet);
}
.page-home .home-path__label{
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--ink-2);
}
.page-home .home-path__label::before{
  content: "";
  display: inline-block;
  width: .35rem;
  height: .35rem;
  margin-right: .55rem;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 10px rgba(245,195,107,.7);
  vertical-align: middle;
}
.page-home .home-h2{
  margin: .2rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.6vw, 2.2rem);
  line-height: 1.32;
  letter-spacing: .015em;
  color: var(--ink);
  text-wrap: balance;
}
.page-home .home-body{
  margin: 0 0 1rem;
  max-width: 46ch;
  font-size: .9375rem;
  line-height: 1.9;
  color: var(--ink-2);
}
.page-home .home-cta-row{
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  align-items: center;
  margin-top: 1.5rem;
}
.page-home .home-cta-row--flush{
  margin-top: 1.7rem;
}

/* ---------- 分类入口 ---------- */
.page-home .home-clusters-stage{
  isolation: isolate;
}
.page-home .home-clusters__bg{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: .17;
  z-index: -1;
}
.page-home .home-clusters{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}
.page-home .home-cluster{
  position: relative;
  padding: 1rem 0 1.15rem 2.4rem;
  border-top: 1px solid var(--line-soft);
  transition: border-color .18s var(--ease);
}
.page-home .home-cluster:last-child{
  border-bottom: 1px solid var(--line-soft);
}
.page-home .home-cluster__num{
  position: absolute;
  left: 0;
  top: 1.15rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--violet);
  transition: color .16s var(--ease);
}
.page-home .home-cluster__name{
  margin: 0 0 .3rem;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--ink);
  transition: color .16s var(--ease);
}
.page-home .home-cluster__desc{
  margin: 0;
  max-width: 44ch;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink-2);
}
.page-home .home-cluster:hover{
  border-top-color: rgba(122,92,255,.7);
}
.page-home .home-cluster:hover .home-cluster__num{
  color: var(--gold);
}
.page-home .home-cluster:hover .home-cluster__name{
  color: var(--gold-soft);
}

/* ---------- 收藏栏目 ---------- */
.page-home .home-fav__grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 5vw, 3rem);
}
.page-home .home-fav__figure{
  margin: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  overflow: hidden;
}
.page-home .home-fav__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}
.page-home .home-compare{
  display: grid;
  gap: .85rem;
  margin: 1.4rem 0 1.1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(20,16,51,.5);
}
.page-home .home-compare__row{
  display: flex;
  align-items: center;
  gap: .8rem;
}
.page-home .home-compare__label{
  flex: 0 0 auto;
  min-width: 5.4rem;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  color: var(--ink-2);
}
.page-home .home-compare__track{
  flex: 1 1 auto;
  height: 2px;
  border-radius: 2px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 4px, transparent 4px 9px);
}
.page-home .home-compare__row--short .home-compare__track{
  flex: 0 0 52%;
  background-image: repeating-linear-gradient(90deg, var(--gold) 0 4px, transparent 4px 9px);
  box-shadow: 0 0 12px rgba(245,195,107,.28);
}
.page-home .home-compare__count{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .04em;
  color: var(--ink);
}

/* ---------- 跨设备 ---------- */
.page-home .home-devices{
  display: grid;
  gap: .7rem;
}
.page-home .home-device{
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(8,38,42,.34);
  overflow: hidden;
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}
.page-home .home-device[open]{
  border-color: rgba(79,227,208,.45);
  background: rgba(8,38,42,.55);
}
.page-home .home-device__sum{
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .85rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--ink);
}
.page-home .home-device__sum::-webkit-details-marker{
  display: none;
}
.page-home .home-device__sum::after{
  content: "+";
  margin-left: auto;
  font-size: 1rem;
  line-height: 1;
  color: var(--cyan);
}
.page-home .home-device[open] .home-device__sum::after{
  content: "−";
}
.page-home .home-device__dot{
  flex: 0 0 auto;
  width: .4rem;
  height: .4rem;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(79,227,208,.8);
}
.page-home .home-device__body{
  margin: 0;
  padding: 0 1rem 1rem;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 导出 ---------- */
.page-home .home-export{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 5vw, 3rem);
}
.page-home .home-formats{
  list-style: none;
  margin: 1.1rem 0 1.3rem;
  padding: 0;
  display: grid;
  gap: .55rem;
}
.page-home .home-format{
  display: flex;
  align-items: baseline;
  gap: .75rem;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink-2);
}
.page-home .home-format code{
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  color: var(--nebula);
  border: 1px solid var(--line-soft);
  border-radius: 4px;
  padding: .1rem .45rem;
}
.page-home .home-export__figure{
  margin: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-soft);
  overflow: hidden;
  background: radial-gradient(70% 70% at 50% 50%, rgba(122,92,255,.24), transparent 72%);
}
.page-home .home-export__figure img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 规模 ---------- */
.page-home .home-stats{
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line-soft);
}
.page-home .home-stat{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .25rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.page-home .home-stat dt{
  font-family: var(--font-mono);
  font-size: 1rem;
  letter-spacing: .04em;
  color: var(--cyan);
}
.page-home .home-stat dd{
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink-2);
}

/* ---------- 咨询 ---------- */
.page-home .home-support__grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.6rem, 5vw, 3rem);
}
.page-home .home-contact{
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.2rem 1rem;
  background: rgba(46,16,36,.42);
}
.page-home .home-contact__row{
  display: grid;
  gap: .22rem;
  padding: .7rem 0;
  border-bottom: 1px solid var(--line-soft);
}
.page-home .home-contact__row:last-of-type{
  border-bottom: 0;
}
.page-home .home-contact__key{
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .12em;
  color: var(--ink-2);
}
.page-home .home-contact__val{
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}
.page-home .home-contact__val a{
  color: var(--gold-soft);
  text-decoration: none;
}
.page-home .home-contact__val a:hover{
  text-decoration: underline;
  text-underline-offset: .3em;
}
.page-home .home-contact__note{
  margin: .85rem 0 0;
  font-size: .8125rem;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 回到起点 ---------- */
.page-home .home-totop{
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 20;
  padding: .5rem .9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5,7,15,.88);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  color: var(--ink-2);
  text-decoration: none;
  transition: border-color .16s var(--ease), color .16s var(--ease);
}
.page-home .home-totop:hover{
  border-color: var(--gold);
  color: var(--gold-soft);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px){
  .page-home .home-stat{
    grid-template-columns: 11rem minmax(0, 1fr);
    gap: 1.5rem;
    align-items: baseline;
  }
}

@media (min-width: 820px){
  .page-home .home-clusters{
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(2rem, 5vw, 3.6rem);
  }
  .page-home .home-cluster:nth-child(5){
    border-bottom: 1px solid var(--line-soft);
  }
  .page-home .home-fav__grid{
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: center;
  }
  .page-home .home-fav__figure{
    transform: translateY(-1rem);
  }
}

@media (min-width: 900px){
  .page-home .home-hero__inner{
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    align-items: center;
  }
  .page-home .home-hero__sky{
    aspect-ratio: auto;
    min-height: 26rem;
  }
  .page-home .home-sky__node{
    display: inline-flex;
  }
  .page-home .home-export{
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
  }
  .page-home .home-support__grid{
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
  .page-home .home-totop{
    right: 1.6rem;
    bottom: 1.6rem;
  }
}

@media (min-width: 1100px){
  .page-home .home-totop{
    right: 2.4rem;
    bottom: 2.4rem;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-home *{
    transition-duration: .01ms !important;
  }
  .page-home .home-fav__figure{
    transform: none;
  }
}
<<<END>>>