.page-products{
  --pr-pad:20px;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
}

/* ---------- 封面条 ---------- */
.page-products .pr-cover{
  position:relative;
  overflow:hidden;
  padding:20px 0 34px;
  color:var(--white);
  background-color:var(--night);
  background-image:
    radial-gradient(120% 90% at 88% 4%, rgba(215,38,61,.26), transparent 58%),
    radial-gradient(85% 70% at 100% 92%, rgba(47,216,198,.12), transparent 62%),
    repeating-linear-gradient(90deg, rgba(251,252,253,.05) 0 1px, transparent 1px 56px);
}
.page-products .pr-cover::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:14px;
  background:repeating-linear-gradient(115deg, rgba(215,38,61,.55) 0 1px, transparent 1px 11px);
  opacity:.5;
}
.page-products .pr-cover__crumb{
  color:var(--on-dark-dim);
  font-size:14px;
}
.page-products .pr-cover__crumb a{
  color:var(--on-dark);
  text-decoration:none;
}
.page-products .pr-cover__crumb a:hover{
  color:var(--white);
  text-decoration:underline;
}
.page-products .pr-cover__eyebrow{
  margin:22px 0 0;
  color:var(--cyan);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.page-products .pr-cover__title{
  margin:12px 0 0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:34px;
  line-height:1.08;
  letter-spacing:-.03em;
  color:var(--white);
}
.page-products .pr-cover__lead{
  margin:16px 0 0;
  max-width:46ch;
  color:var(--on-dark);
  font-size:16px;
  line-height:1.7;
}
.page-products .pr-cover__stats{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 18px;
  margin-top:26px;
  padding-top:20px;
  border-top:1px solid var(--hair-dark);
}
.page-products .pr-stat{
  display:flex;
  flex-direction:column;
  gap:3px;
  border-left:2px solid var(--red);
  padding-left:10px;
}
.page-products .pr-stat__num{
  font-size:24px;
  font-weight:500;
  line-height:1.1;
  color:var(--white);
  letter-spacing:.02em;
}
.page-products .pr-stat__label{
  font-size:12px;
  color:var(--on-dark-dim);
  letter-spacing:.04em;
}

.page-products .pr-jump{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:26px;
}
.page-products .pr-jump a{
  display:inline-block;
  padding:5px 10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--on-dark);
  text-decoration:none;
  border:1px solid var(--hair-dark);
  clip-path:var(--cut-sm);
  transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);
}
.page-products .pr-jump a:hover,
.page-products .pr-jump a:focus-visible{
  color:var(--white);
  background:rgba(215,38,61,.9);
  border-color:rgba(215,38,61,.9);
}

/* ---------- 章节骨架 ---------- */
.page-products .pr-sec{
  position:relative;
  padding:44px 0;
}
.page-products .pr-sec::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:10px;
  background:repeating-linear-gradient(120deg, var(--rule) 0 1px, transparent 1px 9px);
  opacity:.55;
}
.page-products .section-head{
  margin-bottom:26px;
}
.page-products .section-head p{
  margin:10px 0 0;
  max-width:60ch;
  color:var(--charcoal);
  font-size:15px;
  line-height:1.7;
}

/* ---------- 01 结构总览 ---------- */
.page-products .pr-overview{
  display:grid;
  gap:24px;
}
.page-products .pr-overview__fig{
  margin:0;
  background:var(--white);
  border:1px solid var(--rule);
  clip-path:var(--cut);
  padding:10px;
}
.page-products .pr-overview__fig img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
  clip-path:var(--cut-sm);
}
.page-products .pr-overview__fig .media__caption{
  margin-top:8px;
  font-size:12px;
  color:var(--gray);
}

.page-products .pr-layers{
  list-style:none;
  margin:0;
  padding:0;
  border-top:1px solid var(--rule);
}
.page-products .pr-layer{
  display:grid;
  grid-template-columns:46px minmax(0,1fr) auto;
  gap:2px 12px;
  align-items:baseline;
  padding:13px 0;
  border-bottom:1px solid var(--rule-soft);
}
.page-products .pr-layer__tag{
  grid-row:1 / span 2;
  font-size:13px;
  color:var(--red);
  letter-spacing:.06em;
}
.page-products .pr-layer__name{
  grid-column:2;
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:17px;
  letter-spacing:-.01em;
  color:var(--ink);
}
.page-products .pr-layer__desc{
  grid-column:2;
  margin:2px 0 0;
  font-size:13px;
  line-height:1.6;
  color:var(--charcoal);
}
.page-products .pr-layer__count{
  grid-column:3;
  grid-row:1 / span 2;
  font-size:12px;
  color:var(--gray);
  white-space:nowrap;
}

/* 主题簇横向带 */
.page-products .pr-clusters{
  margin-top:30px;
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
  padding-bottom:10px;
}
.page-products .pr-clusters:focus-visible{
  outline:2px solid var(--red);
  outline-offset:4px;
}
.page-products .pr-clusters::-webkit-scrollbar{height:6px;}
.page-products .pr-clusters::-webkit-scrollbar-track{background:var(--rule-soft);}
.page-products .pr-clusters::-webkit-scrollbar-thumb{background:var(--rule);border-radius:99px;}
.page-products .pr-clusters__track{
  display:flex;
  gap:14px;
  width:max-content;
  list-style:none;
  margin:0;
  padding:2px;
}
.page-products .pr-cluster{
  flex:0 0 232px;
  scroll-snap-align:start;
  padding:16px 16px 18px;
  background:var(--white);
  border:1px solid var(--rule-soft);
  clip-path:var(--cut-sm);
}
.page-products .pr-cluster__top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
}
.page-products .pr-cluster__id{
  font-size:13px;
  color:var(--red);
  letter-spacing:.04em;
}
.page-products .pr-cluster__layer{
  font-size:11px;
  letter-spacing:.1em;
  color:var(--gray);
  background:var(--paper);
  padding:2px 7px;
  clip-path:var(--cut-sm);
}
.page-products .pr-cluster__name{
  margin:12px 0 0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:16px;
  line-height:1.3;
  letter-spacing:-.01em;
  color:var(--ink);
}
.page-products .pr-cluster__desc{
  margin:6px 0 0;
  font-size:13px;
  line-height:1.65;
  color:var(--charcoal);
}
.page-products .pr-hint{
  margin:6px 0 0;
  font-size:11px;
  letter-spacing:.06em;
  color:var(--gray);
}

/* ---------- 02 编号 ---------- */
.page-products .pr-num-block{
  display:grid;
  gap:18px;
  padding:24px 20px;
  background:var(--white);
  border:1px solid var(--rule);
  clip-path:var(--cut);
}
.page-products .pr-num{
  display:flex;
  align-items:baseline;
  font-family:var(--font-mono);
  font-weight:500;
  font-size:48px;
  line-height:1;
  letter-spacing:.02em;
  color:var(--night);
}
.page-products .pr-num__bracket{color:var(--gray);}
.page-products .pr-num__cluster{color:var(--red);}
.page-products .pr-num__dash{color:var(--gray);}
.page-products .pr-num__item{color:var(--ink);}
.page-products .pr-num__caption{
  display:flex;
  gap:22px;
  margin-top:-8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
}
.page-products .pr-num__notes{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:14px;
}
.page-products .pr-num__notes li{
  display:grid;
  gap:4px;
  padding-left:12px;
  border-left:2px solid var(--rule);
}
.page-products .pr-num__tag{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--red-deep);
}
.page-products .pr-num__notes p{
  margin:0;
  font-size:14px;
  line-height:1.7;
  color:var(--charcoal);
}

/* ---------- 03 检索 ---------- */
.page-products .pr-find{
  display:grid;
  gap:24px;
}
.page-products .pr-find__fig{
  margin:0;
  padding:10px;
  background:var(--night);
  clip-path:var(--cut);
}
.page-products .pr-find__fig img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}
.page-products .pr-find__fig .media__caption{
  margin-top:8px;
  font-size:12px;
  color:var(--on-dark-dim);
}
.page-products .pr-find__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:16px;
}
.page-products .pr-find__item{
  padding:16px 16px 18px;
  background:var(--white);
  border:1px solid var(--rule-soft);
  border-left:3px solid var(--cyan);
  clip-path:var(--cut-sm);
}
.page-products .pr-find__key{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink);
  background:var(--cyan-soft);
  padding:2px 8px;
}
.page-products .pr-find__item h3{
  margin:10px 0 0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:16px;
  letter-spacing:-.01em;
  color:var(--ink);
}
.page-products .pr-find__item p{
  margin:6px 0 0;
  font-size:14px;
  line-height:1.7;
  color:var(--charcoal);
}
.page-products .pr-find__foot{
  margin:24px 0 0;
  padding:14px 16px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink);
  background:var(--orange-soft);
  border-left:3px solid var(--orange);
  clip-path:var(--cut-sm);
}

/* ---------- 04 版本记录 ---------- */
.page-products .pr-ver{
  display:grid;
  gap:24px;
}
.page-products .pr-ver__fig{
  margin:0;
  padding:10px;
  background:var(--white);
  border:1px solid var(--rule);
  clip-path:var(--cut);
}
.page-products .pr-ver__fig img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}
.page-products .pr-ver__fig .media__caption{
  margin-top:8px;
  font-size:12px;
  color:var(--gray);
}
.page-products .pr-ver__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:0;
  border-top:1px solid var(--rule);
}
.page-products .pr-ver__list li{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:4px 14px;
  padding:14px 0;
  border-bottom:1px solid var(--rule-soft);
}
.page-products .pr-ver__tag{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gray);
  padding-top:2px;
}
.page-products .pr-ver__list p{
  margin:0;
  font-size:14px;
  line-height:1.7;
  color:var(--charcoal);
}

/* ---------- 05 双栏核对 ---------- */
.page-products .pr-compare{
  display:grid;
  gap:22px;
}
.page-products .pr-compare__fig{
  margin:0;
  padding:10px;
  background:var(--white);
  border:1px solid var(--rule);
  clip-path:var(--cut);
}
.page-products .pr-compare__fig img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}
.page-products .pr-compare__fig .media__caption{
  margin-top:8px;
  font-size:12px;
  color:var(--gray);
}
.page-products .pr-compare__uses{
  display:grid;
  gap:14px;
}
.page-products .pr-compare__case{
  padding:16px;
  background:var(--white);
  border:1px solid var(--rule-soft);
  clip-path:var(--cut-sm);
}
.page-products .pr-compare__code{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--gray);
}
.page-products .pr-compare__case h3{
  margin:8px 0 0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:17px;
  letter-spacing:-.01em;
  color:var(--ink);
}
.page-products .pr-compare__case p{
  margin:6px 0 0;
  font-size:14px;
  line-height:1.7;
  color:var(--charcoal);
}
.page-products .pr-compare__tip{
  margin:0;
  padding:12px 14px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink);
  background:var(--paper);
  border:1px dashed var(--rule);
  clip-path:var(--cut-sm);
}

/* ---------- 06 设备覆盖 ---------- */
.page-products .pr-dev{
  display:grid;
  gap:24px;
}
.page-products .pr-dev__fig{
  margin:0;
  padding:10px;
  background:var(--white);
  border:1px solid var(--rule);
  clip-path:var(--cut);
}
.page-products .pr-dev__fig img{
  display:block;
  width:100%;
  height:auto;
  object-fit:cover;
}
.page-products .pr-dev__fig .media__caption{
  margin-top:8px;
  font-size:12px;
  color:var(--gray);
}
.page-products .pr-dev__list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}
.page-products .pr-dev__row{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:6px 12px;
  align-items:center;
  padding:14px 16px;
  background:var(--white);
  border:1px solid var(--rule-soft);
  clip-path:var(--cut-sm);
}
.page-products .pr-dev__name{
  font-family:var(--font-display);
  font-weight:900;
  font-size:16px;
  letter-spacing:-.01em;
  color:var(--ink);
}
.page-products .pr-dev__note{
  grid-column:1 / -1;
  font-size:13px;
  line-height:1.65;
  color:var(--charcoal);
}
.page-products .pr-dev__row .status{
  white-space:nowrap;
}

/* ---------- 07 使用路径 ---------- */
.page-products .pr-paths{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:0;
  position:relative;
}
.page-products .pr-path{
  position:relative;
  display:grid;
  grid-template-columns:38px minmax(0,1fr);
  gap:0 14px;
  padding-bottom:26px;
}
.page-products .pr-path::before{
  content:"";
  position:absolute;
  left:18px;
  top:30px;
  bottom:0;
  width:0;
  border-left:1px dashed var(--rule);
}
.page-products .pr-path:last-child{padding-bottom:0;}
.page-products .pr-path:last-child::before{display:none;}
.page-products .pr-path__id{
  position:relative;
  z-index:1;
  display:grid;
  place-items:center;
  width:36px;
  height:36px;
  font-size:14px;
  color:var(--white);
  background:var(--night);
  clip-path:polygon(0 0,100% 0,100% 70%,72% 100%,0 100%);
}
.page-products .pr-path__body h3{
  margin:4px 0 0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:17px;
  letter-spacing:-.01em;
  color:var(--ink);
}
.page-products .pr-path__body p{
  margin:6px 0 12px;
  font-size:14px;
  line-height:1.7;
  color:var(--charcoal);
}

/* 收尾 */
.page-products .pr-cta{
  display:grid;
  gap:18px;
  margin-top:34px;
  padding:24px 20px;
  color:var(--white);
  background-color:var(--night);
  background-image:radial-gradient(110% 120% at 92% 0%, rgba(215,38,61,.28), transparent 62%);
  clip-path:var(--cut);
}
.page-products .pr-cta__text h2{
  margin:0;
  font-family:var(--font-display);
  font-weight:900;
  font-size:20px;
  line-height:1.3;
  letter-spacing:-.02em;
  color:var(--white);
}
.page-products .pr-cta__text p{
  margin:8px 0 0;
  font-size:14px;
  line-height:1.75;
  color:var(--on-dark);
}
.page-products .pr-cta__actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

/* ---------- 断点 ---------- */
@media (min-width:600px){
  .page-products .pr-cover{padding:26px 0 42px;}
  .page-products .pr-cover__title{font-size:44px;}
  .page-products .pr-cover__lead{font-size:17px;}
  .page-products .pr-cover__stats{grid-template-columns:repeat(4,minmax(0,1fr));}
  .page-products .pr-num{font-size:60px;}
  .page-products .pr-num-block{padding:30px 28px;}
  .page-products .pr-num__notes{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
  .page-products .pr-compare__uses{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-products .pr-dev__list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .page-products .pr-cta{padding:30px 28px;}
}

@media (min-width:900px){
  .page-products .pr-sec{padding:60px 0;}
  .page-products .pr-cover{padding:34px 0 56px;}
  .page-products .pr-cover__title{font-size:56px;}
  .page-products .pr-overview{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:36px;align-items:start;}
  .page-products .pr-find{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:34px;align-items:start;}
  .page-products .pr-ver{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:34px;align-items:start;}
  .page-products .pr-compare__fig{grid-column:1 / -1;}
  .page-products .pr-dev{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:34px;align-items:start;}
  .page-products .pr-cta{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:28px;padding:34px 36px;}
  .page-products .pr-cta__text h2{font-size:24px;}
  .page-products .pr-cluster{flex-basis:260px;}
  .page-products .pr-num{font-size:72px;}
}

@media (min-width:1200px){
  .page-products .pr-cover__title{font-size:60px;}
  .page-products .pr-num-block{padding:34px 32px;}
}

@media (prefers-reduced-motion:reduce){
  .page-products .pr-jump a{transition:none;}
}
<<<END>>>