/* ===== 产品总览 · 页面作用域 ===== */
.page-products{
  --pf01:var(--cyan-signal);
  --pf02:var(--electric-blue);
  --pf03:var(--sand-soft);
  --pf04:var(--violet-signal);
  --prod-accent:var(--muted-steel);
  --prod-rail-gap:clamp(16px,2.4vw,28px);
}

.page-products .media{
  margin:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--steel-mid);
}

.page-products .media img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}

.page-products .media__cap{
  display:block;
  padding:10px 12px 12px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--muted-steel);
  border-top:1px solid var(--line);
}

.page-products .section--paper{
  color:var(--ink-text);
}

.page-products .section--paper .sec-head__idx,
.page-products .section--paper .sec-head__note,
.page-products .section--paper .media__cap{
  color:#5C6B75;
}

/* ---- 首屏 ---- */
.page-products .prod-cover{
  padding-top:clamp(20px,3vw,36px);
}

.page-products .prod-cover .crumbs{
  margin-bottom:clamp(24px,4vw,48px);
}

.page-products .prod-cover__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(28px,4vw,52px);
  align-items:start;
}

.page-products .prod-cover__lead{
  display:flex;
  flex-direction:column;
  gap:18px;
}

.page-products .prod-cover__sub{
  display:block;
  margin-top:10px;
  font-size:clamp(.9rem,1.6vw,1.1rem);
  font-weight:600;
  letter-spacing:.02em;
  color:var(--cyan-signal);
}

.page-products .prod-cover__note{
  max-width:56ch;
}

.page-products .prod-cover__chips{
  gap:8px;
  padding:0;
  margin:6px 0 0;
  list-style:none;
}

.page-products .prod-cover__figure{
  clip-path:polygon(0 0,100% 0,100% 88%,0 100%);
  border-bottom:0;
}

/* ---- 专利族 ---- */
.page-products .prod-families__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,3.5vw,44px);
  align-items:start;
}

.page-products .prod-families__list{
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
}

.page-products .prod-fam{
  position:relative;
  display:grid;
  gap:10px;
  padding:clamp(20px,2.6vw,30px) clamp(18px,2.4vw,30px) clamp(20px,2.6vw,30px) clamp(26px,3vw,40px);
  background:var(--steel-mid);
}

.page-products .prod-fam__bar{
  position:absolute;
  inset:0 auto 0 0;
  width:5px;
  border-radius:0;
}

.page-products .prod-fam .card__title{
  margin:0;
  font-size:clamp(1.15rem,2vw,1.4rem);
  letter-spacing:-.01em;
}

.page-products .prod-fam .card__body{
  margin:0;
  max-width:62ch;
  color:rgba(244,241,234,.78);
  line-height:1.75;
}

.page-products .prod-fam .card__idx{
  color:var(--muted-steel);
}

.page-products .prod-fam__meta{
  margin:4px 0 0;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--sand-soft);
}

.page-products .prod-families__figure{
  border-radius:var(--radius);
}

/* ---- 产品线横向卷轴 ---- */
.page-products .prod-lines__intro{
  max-width:64ch;
  margin-bottom:clamp(20px,3vw,34px);
}

.page-products .prod-rail{
  display:flex;
  gap:var(--prod-rail-gap);
  padding:clamp(4px,1vw,10px) var(--pad-x) clamp(20px,3vw,32px);
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}

.page-products .prod-rail:focus-visible{
  outline:2px solid var(--electric-blue);
  outline-offset:-2px;
}

.page-products .prod-rail__item{
  --prod-accent:var(--muted-steel);
  flex:0 0 min(78vw,340px);
  scroll-snap-align:start;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:22px 20px 24px;
  border:1px solid var(--line);
  border-top:4px solid var(--prod-accent);
  border-radius:var(--radius);
  background:var(--steel-mid);
  transition:border-color 180ms var(--ease),transform 180ms var(--ease);
}

.page-products .prod-rail__item:hover{
  border-color:var(--line-strong);
  transform:translateY(-2px);
}

.page-products #line-s{ --prod-accent:var(--pf01); }
.page-products #line-c{ --prod-accent:var(--pf02); }
.page-products #line-e{ --prod-accent:var(--pf03); }
.page-products #line-x{ --prod-accent:var(--pf04); }

.page-products .prod-rail__head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}

.page-products .prod-rail__code{
  font-size:clamp(1.6rem,3.4vw,2.2rem);
  font-weight:700;
  line-height:1;
  color:var(--prod-accent);
}

.page-products .prod-rail__title{
  margin:0;
  font-size:clamp(1.1rem,2vw,1.35rem);
}

.page-products .prod-rail__body{
  margin:0;
  flex:1 1 auto;
  font-size:15px;
  line-height:1.75;
  color:rgba(244,241,234,.78);
}

.page-products .prod-rail__spec{
  margin:0;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:grid;
  gap:6px;
  font-size:13px;
}

.page-products .prod-rail__spec div{
  display:flex;
  justify-content:space-between;
  gap:12px;
}

.page-products .prod-rail__spec dt{
  color:var(--muted-steel);
}

.page-products .prod-rail__spec dd{
  margin:0;
  text-align:right;
  color:var(--paper-warm);
}

.page-products .prod-lines__figure{
  margin-top:clamp(14px,2vw,22px);
}

/* ---- 档位卡片（不等宽） ---- */
.page-products .prod-tiers__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(16px,2.4vw,24px);
  margin-bottom:clamp(24px,3.5vw,40px);
}

.page-products .prod-tier{
  display:grid;
  gap:12px;
  align-content:start;
  padding:clamp(20px,2.6vw,30px);
  border:1px solid var(--line-dark);
  border-radius:var(--radius);
  background:#FBF9F4;
}

.page-products .prod-tier--t1{ border-left:4px solid var(--cyan-dim); }
.page-products .prod-tier--t2{ border-left:4px solid var(--sand-orange); }
.page-products .prod-tier--t3{ border-left:4px solid var(--violet-signal); }

.page-products .prod-tier__no{
  margin:0;
  font-size:12px;
  letter-spacing:.16em;
  color:#5C6B75;
}

.page-products .prod-tier__name{
  margin:0;
  font-size:clamp(1.2rem,2.2vw,1.5rem);
  letter-spacing:-.01em;
}

.page-products .prod-tier__body{
  margin:0;
  max-width:44ch;
  font-size:15.5px;
  line-height:1.78;
  color:#2C3A44;
}

.page-products .prod-tier__list{
  margin:0;
  padding:14px 0 0;
  list-style:none;
  border-top:1px solid var(--line-dark);
  display:grid;
  gap:7px;
  font-size:14px;
  color:#3C4A54;
}

.page-products .prod-tier__list li{
  padding-left:16px;
  position:relative;
}

.page-products .prod-tier__list li::before{
  content:"—";
  position:absolute;
  left:0;
  color:var(--sand-orange);
}

.page-products .prod-tiers__figure{
  margin-top:6px;
}

/* ---- 交叉表 ---- */
.page-products .prod-matrix__wrap{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border:1px solid var(--line);
  border-radius:var(--radius);
}

.page-products .prod-matrix__table{
  min-width:760px;
  width:100%;
  border-collapse:collapse;
}

.page-products .prod-matrix__caption{
  caption-side:top;
  padding:14px 16px;
  text-align:left;
  font-size:13px;
  line-height:1.7;
  color:var(--muted-steel);
}

.page-products .prod-matrix__table thead th{
  padding:14px 16px;
  text-align:left;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--paper-warm);
  background:var(--slate-ink);
  border-bottom:1px solid var(--line);
}

.page-products .prod-matrix__table tbody th{
  display:flex;
  align-items:center;
  gap:10px;
  padding:16px;
  font-size:14.5px;
  font-weight:600;
  text-align:left;
  white-space:nowrap;
  border-bottom:1px solid var(--line);
}

.page-products .prod-matrix__table td{
  padding:16px;
  font-size:14.5px;
  line-height:1.7;
  color:rgba(244,241,234,.82);
  border-bottom:1px solid var(--line);
}

.page-products .prod-matrix__table tbody tr:hover th,
.page-products .prod-matrix__table tbody tr:hover td{
  background:rgba(53,224,192,.08);
}

.page-products .prod-matrix__legend{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  padding:0;
  margin:16px 0 0;
  list-style:none;
}

.page-products .prod-matrix__tail{
  margin-top:clamp(20px,3vw,30px);
  max-width:66ch;
  font-size:15.5px;
}

/* ---- 序列号段位 ---- */
.page-products .prod-interval__grid{
  display:grid;
  grid-template-columns:1fr;
  gap:clamp(24px,3.5vw,44px);
  align-items:start;
}

.page-products .prod-interval__bars{
  display:grid;
  gap:clamp(20px,2.6vw,30px);
}

.page-products .prod-bar{
  display:grid;
  gap:10px;
}

.page-products .prod-bar__label{
  margin:0;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--sand-soft);
}

.page-products .prod-bar__track{
  height:10px;
  border:1px solid var(--line);
  border-radius:2px;
  background:rgba(10,26,36,.5);
  overflow:hidden;
}

.page-products .prod-bar__fill{
  display:block;
  height:100%;
}

.page-products .prod-bar__fill--short{
  width:42%;
  background:var(--cyan-signal);
}

.page-products .prod-bar__fill--long{
  width:82%;
  background:var(--sand-orange);
}

.page-products .prod-bar__val{
  margin:0;
  font-size:clamp(1.05rem,1.9vw,1.25rem);
  font-weight:600;
}

.page-products .prod-bar__desc{
  margin:0;
  font-size:14.5px;
  line-height:1.7;
  color:rgba(244,241,234,.72);
}

.page-products .prod-interval__note{
  margin:0;
  font-size:15.5px;
}

.page-products .prod-interval__note a{
  color:var(--cyan-signal);
  text-decoration:underline;
  text-underline-offset:3px;
}

.page-products .prod-interval__figure{
  border-radius:var(--radius);
}

/* ---- 版本迭代 ---- */
.page-products .prod-versions__list{
  margin:0;
  padding:0;
  list-style:none;
  display:grid;
  gap:1px;
  background:var(--line-dark);
  border-top:1px solid var(--line-dark);
  border-bottom:1px solid var(--line-dark);
}

.page-products .prod-ver{
  display:grid;
  grid-template-columns:1fr;
  gap:8px;
  padding:clamp(16px,2.2vw,24px) 0;
  background:var(--paper-warm);
}

.page-products .prod-ver__idx{
  font-size:12px;
  letter-spacing:.12em;
  color:var(--sand-orange);
}

.page-products .prod-ver__title{
  margin:0 0 6px;
  font-size:clamp(1.02rem,1.8vw,1.2rem);
}

.page-products .prod-ver__body p{
  margin:0;
  max-width:68ch;
  font-size:15px;
  line-height:1.78;
  color:#2C3A44;
}

.page-products .prod-versions__tail{
  margin-top:clamp(22px,3vw,32px);
  max-width:66ch;
  font-size:15.5px;
}

.page-products .prod-versions__tail a{
  color:var(--steel-mid);
  text-decoration:underline;
  text-underline-offset:3px;
}

/* ---- 资料索取 ---- */
.page-products .prod-request__card{
  display:grid;
  gap:14px;
  border-left:4px solid var(--sand-orange);
}

.page-products .prod-request__title{
  margin:0;
  font-size:clamp(1.3rem,2.4vw,1.65rem);
  letter-spacing:-.01em;
}

.page-products .prod-request__body{
  margin:0;
  max-width:66ch;
  font-size:15.5px;
  line-height:1.78;
  color:rgba(244,241,234,.8);
}

.page-products .prod-request__body a{
  color:var(--cyan-signal);
  text-decoration:underline;
  text-underline-offset:3px;
}

.page-products .prod-request__actions{
  gap:12px;
  margin-top:6px;
}

.page-products .prod-request__mail{
  margin:4px 0 0;
  font-size:14px;
  letter-spacing:.06em;
  color:var(--sand-soft);
  word-break:break-all;
}

/* ===== 断点：平板 ===== */
@media (min-width:760px){
  .page-products .prod-cover__grid{
    grid-template-columns:minmax(0,6fr) minmax(0,6fr);
  }

  .page-products .prod-families__grid{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  }

  .page-products .prod-rail__item{
    flex-basis:360px;
  }

  .page-products .prod-tiers__grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }

  .page-products .prod-tier--t3{
    grid-column:span 2;
  }

  .page-products .prod-ver{
    grid-template-columns:150px minmax(0,1fr);
    gap:22px;
    align-items:baseline;
  }
}

/* ===== 断点：桌面 ===== */
@media (min-width:1024px){
  .page-products .prod-cover__grid{
    grid-template-columns:minmax(0,5fr) minmax(0,7fr);
    gap:clamp(40px,5vw,72px);
  }

  .page-products .prod-cover__lead{
    padding-top:14px;
  }

  .page-products .prod-tiers__grid{
    grid-template-columns:minmax(0,1fr) minmax(0,1.18fr) minmax(0,.92fr);
  }

  .page-products .prod-tier--t3{
    grid-column:auto;
  }

  .page-products .prod-interval__grid{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    gap:clamp(40px,5vw,64px);
  }

  .page-products .prod-rail{
    padding-left:max(var(--pad-x),calc((100vw - var(--w-max)) / 2 + var(--pad-x)));
    padding-right:max(var(--pad-x),calc((100vw - var(--w-max)) / 2 + var(--pad-x)));
  }
}

@media (prefers-reduced-motion:reduce){
  .page-products .prod-rail__item{
    transition:none;
  }
  .page-products .prod-rail__item:hover{
    transform:none;
  }
}