.page-home{
  --home-rail:224px;
  --home-flow-gap:56px;
  --home-radius:2px;
  background:var(--c-paper);
  color:var(--c-indigo);
}

/* ---------- 首屏 ---------- */
.page-home .home-hero{
  position:relative;
  background:var(--c-indigo);
  color:var(--c-white);
  border-bottom:2px solid var(--c-gold);
  overflow:hidden;
}
.page-home .home-hero__grid{
  max-width:var(--shell);
  margin:0 auto;
  padding:40px var(--gutter) 56px;
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  align-items:start;
}
.page-home .home-hero__context{
  display:inline-block;
  margin:0 0 18px;
  padding:6px 12px;
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.22em;
  color:var(--c-gold-hi);
  border:1px solid rgba(240,180,41,.55);
}
.page-home .home-hero h1{
  margin:0 0 18px;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(30px,7.2vw,64px);
  line-height:1.08;
  letter-spacing:-.02em;
  color:var(--c-white);
}
.page-home .home-hero__lede{
  margin:0 0 24px;
  max-width:52ch;
  font-size:var(--t-17);
  line-height:1.75;
  color:rgba(255,255,255,.86);
}
.page-home .home-hero__chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:16px;
}
.page-home .home-hero__chips .tag-chip{
  cursor:pointer;
  font-family:var(--font-body);
  font-size:var(--t-14);
}
.page-home .home-hero__fact{
  display:grid;
  gap:4px;
  margin-bottom:10px;
  padding:12px 16px;
  background:rgba(43,217,207,.09);
  border-left:3px solid var(--c-cyan);
  border-radius:var(--home-radius);
}
.page-home .home-hero__fact-k{
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.2em;
  color:var(--c-cyan);
}
.page-home .home-hero__fact-v{
  font-size:var(--t-17);
  font-weight:700;
  color:var(--c-white);
}
.page-home .home-hero__fact-m{
  font-family:var(--font-mono);
  font-size:var(--t-12);
  color:rgba(255,255,255,.6);
}
.page-home .home-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}
.page-home .home-hero .btn--ghost{
  color:var(--c-white);
  border-color:rgba(255,255,255,.7);
  background:transparent;
}
.page-home .home-hero .btn--ghost:hover{
  border-color:var(--c-gold-hi);
  color:var(--c-gold-hi);
}

.page-home .home-hero__stage{
  position:relative;
  min-height:262px;
  border:2px solid var(--c-gold);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  isolation:isolate;
}
.page-home .home-hero__img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:0;
}
.page-home .home-hero__stage::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  background:linear-gradient(158deg,rgba(22,37,90,.88),rgba(11,18,48,.6));
}
.page-home .home-hero__svg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  z-index:2;
  opacity:.8;
}
.page-home .home-hero__badge{
  position:absolute;
  left:18px;
  bottom:18px;
  z-index:3;
  display:grid;
  gap:2px;
  padding:12px 18px;
  background:var(--c-indigo-deep);
  border:2px solid var(--c-gold);
  color:var(--c-white);
}
.page-home .home-hero__badge-k{
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.2em;
  color:var(--c-gold-hi);
}
.page-home .home-hero__badge strong{
  font-family:var(--font-mono);
  font-size:var(--t-30);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.page-home .home-hero__badge-s{
  font-size:var(--t-12);
  color:rgba(255,255,255,.72);
}

/* ---------- 正文长卷外层 ---------- */
.page-home .home-body{
  max-width:var(--shell);
  margin:0 auto;
  padding:0 var(--gutter) 72px;
  display:grid;
  grid-template-columns:1fr;
  gap:28px;
}
.page-home .home-rail{
  position:sticky;
  top:0;
  z-index:20;
  padding:10px 0;
  background:var(--c-paper);
  border-top:2px solid var(--c-indigo);
  border-bottom:2px solid var(--c-indigo);
}
.page-home .home-rail__title{
  display:none;
  margin:0 0 10px;
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.3em;
  color:var(--c-slate);
}
.page-home .home-rail__list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  gap:8px;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
}
.page-home .home-rail__list > li{
  flex:0 0 auto;
}
.page-home .toc-rail__link{
  display:block;
  white-space:nowrap;
  padding:6px 12px;
  font-size:var(--t-14);
  text-decoration:none;
  color:var(--c-indigo);
  background:var(--c-white);
  border:2px solid var(--c-line);
  border-radius:var(--home-radius);
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.page-home .toc-rail__link:hover{
  border-color:var(--c-orange);
}
.page-home .toc-rail__link[aria-current="true"]{
  border-color:var(--c-gold);
  background:rgba(240,180,41,.2);
  font-weight:700;
}
.page-home .home-rail__note{
  display:none;
}

/* ---------- 章节 ---------- */
.page-home .home-section{
  position:relative;
  padding-top:4px;
}
.page-home .home-section + .home-section{
  margin-top:56px;
  padding-top:36px;
  border-top:2px dashed var(--c-line);
}
.page-home .chapter-band{
  display:flex;
  align-items:baseline;
  gap:14px;
  padding-bottom:12px;
  margin-bottom:20px;
  border-bottom:2px solid var(--c-indigo);
}
.page-home .chapter-band__num{
  font-family:var(--font-mono);
  font-size:var(--t-22);
  color:var(--c-gold);
  padding-right:14px;
  border-right:2px solid var(--c-gold);
  font-variant-numeric:tabular-nums;
}
.page-home .chapter-band__title{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(22px,4.6vw,30px);
  letter-spacing:-.02em;
  color:var(--c-indigo);
}
.page-home .home-section__lede{
  margin:0 0 24px;
  max-width:64ch;
  font-size:var(--t-17);
  line-height:1.75;
  color:#3B4570;
}

/* ---------- 四张入口卡 ---------- */
.page-home .home-cards{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
.page-home .home-card{
  padding:22px 20px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.page-home .home-card .card__title{
  font-size:var(--t-22);
  line-height:1.35;
}
.page-home .home-card .card__text{
  flex:1 1 auto;
}
.page-home .home-card .card__foot{
  margin:0;
}

/* ---------- 数据卡 ---------- */
.page-home .home-stats{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
}
.page-home .home-stat .data-card__value{
  font-family:var(--font-mono);
  font-size:clamp(30px,6.4vw,44px);
  line-height:1.1;
  letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;
  margin:6px 0 8px;
}
.page-home .home-note{
  margin-top:24px;
  padding:20px;
  background:var(--c-white);
  border-left:4px solid var(--c-gold);
}
.page-home .home-note p{
  margin:0 0 12px;
  max-width:70ch;
  font-size:var(--t-17);
  line-height:1.75;
  color:#3B4570;
}
.page-home .home-note p:last-child{
  margin-bottom:0;
}

/* ---------- 资料库 ---------- */
.page-home .home-banner{
  margin:0 0 26px;
}
.page-home .home-banner img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:16/10;
  object-fit:cover;
}
.page-home .home-filter{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:0 0 22px;
}
.page-home .home-filter .tag-chip{
  cursor:pointer;
  font-family:var(--font-body);
  font-size:var(--t-14);
}
.page-home .home-lib{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
}
.page-home .home-lib__item{
  padding:20px 18px 16px;
}
.page-home .home-lib__item .card__title{
  font-size:var(--t-22);
}
.page-home .home-lib__use{
  margin:14px 0 0;
  padding-top:10px;
  border-top:1px solid var(--c-line);
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.06em;
  color:var(--c-slate);
}

/* ---------- 使用场景 ---------- */
.page-home .home-scenes{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
.page-home .home-scene{
  position:relative;
  padding:24px 22px;
  background:var(--c-white);
  border:2px solid var(--c-indigo);
  box-shadow:var(--shadow-2);
}
.page-home .home-scene__num{
  display:inline-block;
  margin-bottom:14px;
  padding:4px 10px;
  background:var(--c-indigo);
  color:var(--c-gold-hi);
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.2em;
}
.page-home .home-scene__title{
  margin:0 0 10px;
  font-size:var(--t-22);
  line-height:1.35;
  color:var(--c-indigo);
}
.page-home .home-scene__text{
  margin:0 0 14px;
  font-size:var(--t-17);
  line-height:1.75;
  color:#3B4570;
}
.page-home .home-scene:last-child{
  background:var(--c-indigo);
  border-color:var(--c-gold);
  box-shadow:var(--shadow-gold);
}
.page-home .home-scene:last-child .home-scene__title{
  color:var(--c-white);
}
.page-home .home-scene:last-child .home-scene__text{
  color:rgba(255,255,255,.84);
}
.page-home .home-scene:last-child .home-scene__num{
  background:var(--c-gold);
  color:var(--c-indigo-deep);
}

/* ---------- 版本节奏 ---------- */
.page-home .home-section--versions{
  overflow:hidden;
}
.page-home .home-versions__bg{
  position:absolute;
  inset:0;
  z-index:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.14;
  pointer-events:none;
}
.page-home .home-section--versions > *:not(.home-versions__bg){
  position:relative;
  z-index:1;
}
.page-home .home-timeline{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  grid-template-columns:1fr;
  gap:0;
}
.page-home .home-timeline__item{
  padding:20px 20px 20px 22px;
  background:var(--c-white);
  border:2px solid var(--c-indigo);
  border-top:none;
  border-left-width:4px;
  border-left-color:var(--c-gold);
}
.page-home .home-timeline__item:first-child{
  border-top:2px solid var(--c-indigo);
}
.page-home .home-timeline__time{
  display:block;
  margin-bottom:6px;
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.24em;
  color:var(--c-slate);
}
.page-home .home-timeline__title{
  margin:0 0 6px;
  font-size:var(--t-17);
  font-weight:700;
  color:var(--c-indigo);
}
.page-home .home-timeline__text{
  margin:0;
  font-size:var(--t-14);
  line-height:1.7;
  color:#3B4570;
}
.page-home .home-timeline__item--now{
  background:var(--c-indigo);
  border-color:var(--c-gold);
  border-left-color:var(--c-cyan);
}
.page-home .home-timeline__item--now .home-timeline__time{
  color:var(--c-cyan);
}
.page-home .home-timeline__item--now .home-timeline__title{
  color:var(--c-white);
}
.page-home .home-timeline__item--now .home-timeline__text{
  color:rgba(255,255,255,.8);
}
.page-home .home-cadence{
  margin-top:24px;
  padding:20px;
  background:var(--c-white);
  border:2px solid var(--c-indigo);
  border-left:6px solid var(--c-cyan);
}
.page-home .home-cadence p{
  margin:0 0 12px;
  max-width:70ch;
  font-size:var(--t-17);
  line-height:1.75;
  color:#3B4570;
}
.page-home .home-cadence p:last-child{
  margin-bottom:0;
}

/* ---------- 服务与联系 ---------- */
.page-home .home-service{
  display:grid;
  grid-template-columns:1fr;
  gap:26px;
}
.page-home .home-contact{
  margin:0 0 18px;
  padding:0;
  border-top:2px solid var(--c-indigo);
}
.page-home .home-contact dt{
  margin-top:16px;
  font-family:var(--font-mono);
  font-size:var(--t-12);
  letter-spacing:.2em;
  color:var(--c-slate);
}
.page-home .home-contact dd{
  margin:4px 0 0;
  font-size:var(--t-17);
  font-weight:600;
  line-height:1.6;
  color:var(--c-indigo);
  word-break:break-word;
}
.page-home .home-contact dd a{
  color:var(--c-indigo);
  text-decoration:none;
  border-bottom:2px solid var(--c-gold);
}
.page-home .home-contact dd a:hover{
  color:var(--c-orange);
  border-color:var(--c-orange);
}
.page-home .home-service__hint{
  margin:0 0 18px;
  max-width:60ch;
  font-size:var(--t-14);
  line-height:1.75;
  color:#3B4570;
}
.page-home .home-service__cta{
  margin:0;
}
.page-home .home-service__pic{
  margin:0;
}
.page-home .home-service__pic img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:3/2;
  object-fit:cover;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width:640px){
  .page-home .home-cards{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-home .home-stats{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-home .home-lib{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .page-home .home-banner img{
    aspect-ratio:16/6;
  }
}

@media (min-width:900px){
  .page-home .home-hero__grid{
    grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
    gap:48px;
    align-items:center;
    padding-top:64px;
    padding-bottom:76px;
  }
  .page-home .home-hero__stage{
    min-height:430px;
    margin-right:-24px;
    clip-path:polygon(8% 0,100% 0,100% 100%,0 100%);
  }
  .page-home .home-scenes{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-home .home-service{
    grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
    align-items:start;
    gap:36px;
  }
}

@media (min-width:1024px){
  .page-home .home-body{
    grid-template-columns:var(--home-rail) minmax(0,1fr);
    gap:var(--home-flow-gap);
    padding-top:64px;
    padding-bottom:96px;
  }
  .page-home .home-rail{
    position:sticky;
    top:24px;
    z-index:1;
    padding:0;
    background:transparent;
    border-top:none;
    border-bottom:none;
  }
  .page-home .home-rail__title{
    display:block;
  }
  .page-home .home-rail__list{
    display:block;
    overflow:visible;
  }
  .page-home .home-rail__list > li + li{
    margin-top:6px;
  }
  .page-home .toc-rail__link{
    border:2px solid transparent;
    border-left:3px solid var(--c-line);
    background:transparent;
    border-radius:0;
    font-size:var(--t-14);
  }
  .page-home .toc-rail__link:hover{
    border-left-color:var(--c-orange);
    background:rgba(255,122,47,.08);
  }
  .page-home .toc-rail__link[aria-current="true"]{
    border-left-color:var(--c-gold);
    border-top-color:transparent;
    border-right-color:transparent;
    border-bottom-color:transparent;
    background:rgba(240,180,41,.16);
  }
  .page-home .home-rail__note{
    display:block;
    margin-top:26px;
    padding-left:8px;
    font-family:var(--font-mono);
    font-size:var(--t-12);
    letter-spacing:.3em;
    color:var(--c-slate);
  }
  .page-home .home-section + .home-section{
    margin-top:72px;
    padding-top:48px;
  }
  .page-home .home-cards{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .page-home .home-cards > li:nth-child(2){
    transform:translateY(24px);
  }
  .page-home .home-cards > li:nth-child(4){
    transform:translateY(24px);
  }
  .page-home .home-stats{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .page-home .home-lib{
    grid-template-columns:repeat(3,minmax(0,1fr));
  }
  .page-home .home-timeline{
    grid-template-columns:repeat(4,minmax(0,1fr));
  }
  .page-home .home-timeline__item{
    border:2px solid var(--c-indigo);
    border-top:4px solid var(--c-gold);
    margin-left:-2px;
  }
  .page-home .home-timeline__item:first-child{
    margin-left:0;
    border-top:4px solid var(--c-gold);
  }
  .page-home .home-timeline__item--now{
    border-color:var(--c-indigo);
    border-top-color:var(--c-cyan);
  }
}

@media (prefers-reduced-motion:reduce){
  .page-home .toc-rail__link,
  .page-home .home-hero .btn--ghost{
    transition:none;
  }
  .page-home .home-cards > li:nth-child(2),
  .page-home .home-cards > li:nth-child(4){
    transform:none;
  }
}