/* 产品详情页 v5：以“数据证据 + 工程确认”为主线，不使用装饰性模板大图。 */
.page-product-detail {
  --detail-ink:#071116;
  --detail-blue:#07549b;
  --detail-blue-deep:#073c6b;
  --detail-copper:#bd6c36;
  --detail-paper:#f3f5f4;
  --detail-white:#fff;
  --detail-muted:#68757b;
  --detail-line:#d7dddd;
}

/* 真实产品索引完成匹配前，不允许写死的模板内容进入首帧。 */
.page-product-detail.is-detail-loading:not(.is-detail-bootstrapped) .catalog-detail-hero > * {
  visibility:hidden;
}

.page-product-detail.product-system-v4 .catalog-detail-hero {
  width:min(1392px,calc(100% - 96px));
  min-height:0;
  margin:34px auto 0;
  padding:0;
  grid-template-columns:minmax(0,.94fr) minmax(460px,1.06fr);
  gap:0;
  border:1px solid var(--detail-line);
  background:var(--detail-white);
}

.page-product-detail .catalog-detail-copy {
  min-width:0;
  padding:54px 58px 46px;
}

.page-product-detail .catalog-detail-copy .breadcrumb {
  margin-bottom:58px;
}

.page-product-detail .catalog-detail-copy > .eyebrow {
  margin-bottom:17px;
  color:var(--detail-blue);
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
}

.page-product-detail.product-system-v4 .catalog-detail-copy h1 {
  max-width:680px;
  margin:0;
  font-size:clamp(42px,3.9vw,62px);
  line-height:1.07;
  letter-spacing:-.045em;
}

.page-product-detail.product-system-v4 .catalog-detail-lead {
  max-width:680px;
  margin-top:22px;
  color:var(--detail-muted);
  font-size:15px;
  line-height:1.8;
}

.page-product-detail .detail-evidence-rail {
  display:grid;
  grid-template-columns:.9fr .82fr 1.28fr;
  margin-top:30px;
  border-top:1px solid var(--detail-line);
  border-bottom:1px solid var(--detail-line);
}

.page-product-detail .detail-evidence-rail > div {
  min-width:0;
  padding:15px 15px 15px 0;
}

.page-product-detail .detail-evidence-rail > div + div {
  padding-left:15px;
  border-left:1px solid var(--detail-line);
}

.page-product-detail .detail-evidence-rail span,
.page-product-detail .detail-evidence-rail strong {
  display:block;
}

.page-product-detail .detail-evidence-rail span {
  margin-bottom:8px;
  color:#8a9599;
  font-size:10px;
}

.page-product-detail .detail-evidence-rail strong {
  overflow:hidden;
  color:var(--detail-ink);
  font-size:12px;
  font-weight:650;
  line-height:1.45;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.page-product-detail[data-detail-data-kind="model"] .detail-evidence-rail > div:first-child,
.page-product-detail[data-detail-data-kind="capability"] .detail-evidence-rail > div:first-child,
.page-product-detail[data-detail-data-kind="material"] .detail-evidence-rail > div:first-child {
  box-shadow:inset 0 3px var(--detail-blue);
}

.page-product-detail[data-detail-data-kind="confirmation"] .detail-evidence-rail > div:first-child {
  box-shadow:inset 0 3px var(--detail-copper);
}

.page-product-detail.product-system-v4 .catalog-detail-actions {
  align-items:center;
  margin-top:28px;
  gap:24px;
}

.page-product-detail .detail-datasheet[hidden] { display:none!important; }
.page-product-detail .detail-datasheet { color:var(--detail-blue); font-weight:700; }

.page-product-detail.product-system-v4 .catalog-detail-facts {
  margin-top:34px;
  grid-template-columns:repeat(2,minmax(0,1fr));
  border-top:1px solid var(--detail-line);
}

.page-product-detail.product-system-v4 .catalog-detail-facts > div,
.page-product-detail.product-system-v4 .catalog-detail-facts > div + div {
  min-height:74px;
  padding:14px 16px 11px 0;
  border-right:0;
  border-bottom:1px solid var(--detail-line);
}

.page-product-detail.product-system-v4 .catalog-detail-facts > div:nth-child(even) {
  padding-left:16px;
  border-left:1px solid var(--detail-line);
}

.page-product-detail.product-system-v4 .catalog-detail-facts dt {
  color:#8a9599;
  font-size:9px;
}

.page-product-detail.product-system-v4 .catalog-detail-facts dd {
  margin-top:8px;
  color:var(--detail-ink);
  font-size:11px;
  line-height:1.45;
}

.page-product-detail.product-system-v4 .catalog-detail-media {
  min-height:100%;
  aspect-ratio:auto;
  display:grid;
  grid-template-rows:minmax(0,1fr);
  margin:0;
  border:0;
  border-left:1px solid var(--detail-line);
  background:#e9eeee;
}

.page-product-detail .catalog-detail-image-stage {
  min-height:560px;
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
  padding:38px;
  background:
    linear-gradient(rgba(7,84,155,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(7,84,155,.04) 1px,transparent 1px),
    #edf1f0;
  background-size:40px 40px;
}

.page-product-detail.product-system-v4 .catalog-detail-media img {
  width:100%;
  height:auto;
  max-height:510px;
  object-fit:contain;
  filter:drop-shadow(0 24px 32px rgba(7,17,22,.14));
  transition:transform .8s cubic-bezier(.22,1,.36,1);
}

.page-product-detail .catalog-detail-media:hover img {
  transform:scale(1.045);
}

.page-product-detail.product-system-v4 .page-strip {
  position:relative;
  top:0;
  width:min(1180px,calc(100% - 96px));
  min-height:68px;
  margin:0 auto;
  padding:0;
  background:#fff;
  border-right:1px solid var(--detail-line);
  border-bottom:1px solid var(--detail-line);
  border-left:1px solid var(--detail-line);
  box-shadow:0 8px 24px rgba(7,17,22,.05);
  backdrop-filter:none;
}

.page-product-detail .content-section { scroll-margin-top:108px; }

.page-product-detail .page-strip a {
  min-width:0;
  flex:1 1 0;
  justify-content:center;
  padding:0 18px;
  border-right:1px solid var(--detail-line);
  color:#435158;
  font-size:16px;
  font-weight:650;
  text-align:center;
}

.page-product-detail .page-strip a:last-child {
  color:#fff;
  background:var(--detail-blue);
  border-right:0;
}

.page-product-detail.product-system-v4 .content-section {
  padding:112px max(48px,calc((100vw - 1392px)/2));
}

.page-product-detail.product-system-v4 .product-data-section {
  padding-top:82px;
  padding-bottom:86px;
}

.page-product-detail .section-lead {
  align-items:end;
  margin-bottom:54px;
}

.page-product-detail.product-system-v4 .section-lead h2,
.page-product-detail.product-system-v4 .product-variants-head h3 {
  max-width:800px;
  font-size:clamp(38px,3.4vw,52px);
  line-height:1.12;
  letter-spacing:-.045em;
}

.page-product-detail .section-lead > p {
  max-width:610px;
}

.page-product-detail .product-data-layout {
  border-top:4px solid var(--detail-blue);
}

.page-product-detail .product-spec-ledger > div {
  min-height:96px;
  padding:18px 20px;
}

.page-product-detail .detail-loading-row {
  position:relative;
  overflow:hidden;
}

.page-product-detail .detail-loading-line {
  position:relative;
  width:min(72%,280px);
  height:18px;
  display:block;
  overflow:hidden;
  background:#e5eaea;
}

.page-product-detail .detail-loading-line::after {
  position:absolute;
  inset:0;
  content:"";
  background:linear-gradient(90deg,transparent,rgba(7,84,155,.12),transparent);
  transform:translateX(-100%);
  animation:detail-data-trace 1.15s ease-in-out infinite;
}

.page-product-detail .detail-loading-feature .detail-loading-line {
  width:78%;
  height:12px;
  background:rgba(255,255,255,.12);
}

.page-product-detail .detail-loading-feature .detail-loading-line::after {
  background:linear-gradient(90deg,transparent,rgba(132,197,245,.22),transparent);
}

@keyframes detail-data-trace {
  to { transform:translateX(100%); }
}

@media (prefers-reduced-motion:reduce) {
  .page-product-detail .detail-loading-line::after { animation:none; }
}

.page-product-detail .product-spec-ledger dd {
  width:100%;
  font-size:clamp(20px,1.7vw,27px);
  line-height:1.3;
  text-align:center;
}

.page-product-detail .product-feature-panel {
  padding:28px 36px 30px;
  background:var(--detail-ink);
}

.page-product-detail .product-feature-panel > p,
.page-product-detail .product-feature-panel h3,
.page-product-detail .product-feature-panel li {
  color:#fff;
}

.page-product-detail .product-feature-panel > p {
  color:#83bdeb;
}

.page-product-detail .product-feature-panel li {
  border-color:rgba(255,255,255,.15);
}

.page-product-detail .product-feature-panel h3 {
  margin:20px 0 14px;
  font-size:clamp(24px,2vw,31px);
}

.page-product-detail .product-feature-panel ul {
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:22px;
}

.page-product-detail .product-feature-panel li {
  min-height:38px;
  padding:8px 0;
}

.page-product-detail .product-variants {
  margin-top:100px;
  max-width:1180px;
  margin-right:auto;
  margin-left:auto;
}

.page-product-detail .product-data-section > .section-lead,
.page-product-detail .product-data-section > .product-data-layout,
.page-product-detail .product-data-section > .detail-confirmation {
  max-width:1180px;
  margin-right:auto;
  margin-left:auto;
}

.page-product-detail .product-variants-head {
  margin-bottom:24px;
}

.page-product-detail .product-table-notice {
  margin-bottom:0;
  padding:16px 20px;
  border-left:4px solid var(--detail-copper);
  color:#59666b;
  background:#eef1ef;
  font-size:12px;
  line-height:1.65;
}

.page-product-detail .product-variants-scroll {
  border-top:0;
}

.page-product-detail .detail-confirmation {
  margin-top:90px;
  display:grid;
  grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);
  border-top:5px solid var(--detail-copper);
  background:var(--detail-ink);
}

.page-product-detail .detail-confirmation[hidden] {
  display:none;
}

.page-product-detail .detail-confirmation > div {
  padding:52px 50px;
  border-right:1px solid rgba(255,255,255,.16);
}

.page-product-detail .detail-confirmation .eyebrow {
  color:#84c5f5;
}

.page-product-detail .detail-confirmation h3 {
  max-width:520px;
  margin:18px 0;
  color:#fff;
  font-size:clamp(30px,3vw,46px);
  line-height:1.14;
  letter-spacing:-.04em;
}

.page-product-detail .detail-confirmation p {
  max-width:520px;
  color:#a7b3b8;
  font-size:14px;
  line-height:1.8;
}

.page-product-detail .detail-confirmation .button {
  margin-top:28px;
}

.page-product-detail .detail-confirmation ol {
  display:grid;
  grid-template-columns:1fr 1fr;
  margin:0;
  padding:0;
  list-style:none;
}

.page-product-detail .detail-confirmation li {
  min-height:150px;
  padding:30px;
  border-right:1px solid rgba(255,255,255,.14);
  border-bottom:1px solid rgba(255,255,255,.14);
}

.page-product-detail .detail-confirmation li:nth-child(even) {
  border-right:0;
}

.page-product-detail .detail-confirmation li:nth-last-child(-n+2) {
  border-bottom:0;
}

.page-product-detail .detail-confirmation li span,
.page-product-detail .detail-confirmation li strong {
  display:block;
}

.page-product-detail .detail-confirmation li span {
  margin-bottom:35px;
  color:var(--detail-copper);
  font-size:11px;
}

.page-product-detail .detail-confirmation li strong {
  color:#fff;
  font-size:17px;
  font-weight:580;
}

.page-product-detail .detail-scope .catalog-scope-grid {
  grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:4px solid var(--detail-blue);
}

.page-product-detail .detail-scope .catalog-scope-grid article {
  min-height:270px;
  padding:30px 26px;
}

.page-product-detail .detail-scope .catalog-scope-grid article + article {
  border-left:1px solid var(--detail-line);
}

.page-product-detail .detail-scope .catalog-scope-grid span {
  color:var(--detail-copper);
}

.page-product-detail .detail-scope .catalog-scope-grid h3 {
  margin-top:70px;
  font-size:22px;
}

.page-product-detail .detail-scope .catalog-scope-grid p {
  margin-top:14px;
  color:var(--detail-muted);
  font-size:13px;
  line-height:1.75;
}

.page-product-detail .detail-inputs .feature-list {
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:4px solid var(--detail-ink);
}

.page-product-detail .detail-inputs .feature-list li {
  min-height:176px;
  display:block;
  padding:28px 26px;
  border-bottom:1px solid var(--detail-line);
}

.page-product-detail .detail-inputs .feature-list li + li {
  border-left:1px solid var(--detail-line);
}

.page-product-detail .detail-inputs .feature-list strong {
  display:block;
  margin-bottom:32px;
  color:var(--detail-blue);
  font-size:19px;
}

.page-product-detail .detail-inputs .feature-list span {
  color:var(--detail-muted);
  font-size:13px;
  line-height:1.75;
}

.page-product-detail.product-system-v4 .catalog-related {
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;
  background:var(--detail-line);
  border:1px solid var(--detail-line);
}

.page-product-detail.product-system-v4 .catalog-related a {
  min-height:0;
  display:grid;
  grid-template-rows:auto 1fr;
  padding:0;
  color:var(--detail-ink);
  background:#fff;
  text-decoration:none;
}

.page-product-detail .catalog-related figure {
  aspect-ratio:4 / 3;
  overflow:hidden;
  margin:0;
  background:#edf1f0;
}

.page-product-detail.product-system-v4 .catalog-related img {
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .75s cubic-bezier(.22,1,.36,1);
}

.page-product-detail .catalog-related a:hover img {
  transform:scale(1.07);
}

.page-product-detail .catalog-related a > div {
  min-height:210px;
  display:flex;
  flex-direction:column;
  padding:24px 24px 22px;
}

.page-product-detail .catalog-related small {
  color:var(--detail-blue);
  font-size:10px;
  font-weight:700;
}

.page-product-detail .catalog-related h3 {
  margin:13px 0 10px;
  font-size:20px;
  line-height:1.35;
}

.page-product-detail .catalog-related p {
  color:var(--detail-muted);
  font-size:12px;
  line-height:1.6;
}

.page-product-detail .catalog-related b {
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:auto;
  padding-top:22px;
  border-top:1px solid var(--detail-line);
  font-size:12px;
}

.page-product-detail .page-cta {
  border-top:5px solid var(--detail-copper);
}

@media (max-width:1100px) {
  .page-product-detail.product-system-v4 .catalog-detail-hero {
    width:calc(100% - 48px);
    grid-template-columns:1fr 1fr;
  }
  .page-product-detail .catalog-detail-copy { padding:42px 36px 36px; }
  .page-product-detail .catalog-detail-copy .breadcrumb { margin-bottom:38px; }
  .page-product-detail .catalog-detail-image-stage { min-height:500px; padding:28px; }
  .page-product-detail.product-system-v4 .page-strip { width:calc(100% - 48px); }
  .page-product-detail .detail-scope .catalog-scope-grid,
  .page-product-detail .detail-inputs .feature-list { grid-template-columns:1fr 1fr; }
  .page-product-detail .detail-scope .catalog-scope-grid article:nth-child(3),
  .page-product-detail .detail-inputs .feature-list li:nth-child(3) { border-left:0; }
  .page-product-detail .detail-scope .catalog-scope-grid article:nth-child(n+3),
  .page-product-detail .detail-inputs .feature-list li:nth-child(n+3) { border-top:1px solid var(--detail-line); }
}

@media (max-width:700px) {
  .page-product-detail.product-system-v4 .catalog-detail-hero {
    width:100%;
    margin:0;
    padding:0;
    gap:0;
    border-right:0;
    border-left:0;
  }
  .page-product-detail.product-system-v4 .catalog-detail-media {
    width:100%;
    order:-1;
    border-left:0;
    border-bottom:1px solid var(--detail-line);
  }
  .page-product-detail .catalog-detail-image-stage {
    min-height:0;
    aspect-ratio:4 / 3;
    padding:20px;
  }
  .page-product-detail.product-system-v4 .catalog-detail-media img {
    height:100%;
    max-height:none;
  }
  .page-product-detail .catalog-detail-media figcaption {
    min-height:46px;
    padding:0 16px;
    font-size:9px;
  }
  .page-product-detail .catalog-detail-copy {
    padding:34px 16px 38px;
  }
  .page-product-detail .catalog-detail-copy .breadcrumb {
    margin-bottom:30px;
  }
  .page-product-detail.product-system-v4 .catalog-detail-copy h1 {
    font-size:32px;
    line-height:1.14;
  }
  .page-product-detail.product-system-v4 .catalog-detail-lead {
    font-size:14px;
    line-height:1.7;
  }
  .page-product-detail .detail-evidence-rail {
    grid-template-columns:1fr;
  }
  .page-product-detail .detail-evidence-rail > div,
  .page-product-detail .detail-evidence-rail > div + div {
    padding:13px 0;
    border-left:0;
    border-bottom:1px solid var(--detail-line);
  }
  .page-product-detail .detail-evidence-rail > div:last-child { border-bottom:0; }
  .page-product-detail .detail-evidence-rail strong { white-space:normal; }
  .page-product-detail.product-system-v4 .catalog-detail-actions {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:16px;
  }
  .page-product-detail.product-system-v4 .catalog-detail-actions .button {
    grid-column:1 / -1;
    width:100%;
  }
  .page-product-detail .detail-datasheet,
  .page-product-detail.product-system-v4 .catalog-detail-actions .text-link {
    font-size:11px;
  }
  .page-product-detail.product-system-v4 .catalog-detail-facts {
    margin-top:28px;
  }
  .page-product-detail.product-system-v4 .page-strip {
    position:relative;
    top:auto;
    width:100%;
    min-height:60px;
    overflow-x:auto;
    border-right:0;
    border-left:0;
  }
  .page-product-detail .page-strip a {
    min-width:104px;
    flex:0 0 auto;
    padding:0 14px;
    font-size:14px;
  }
  .page-product-detail.product-system-v4 .content-section {
    padding:72px 16px;
  }
  .page-product-detail.product-system-v4 .product-data-section {
    padding-top:62px;
    padding-bottom:64px;
  }
  .page-product-detail .section-lead { margin-bottom:32px; }
  .page-product-detail.product-system-v4 .section-lead h2,
  .page-product-detail.product-system-v4 .product-variants-head h3 {
    font-size:32px;
    line-height:1.16;
  }
  .page-product-detail .product-spec-ledger > div { min-height:92px; padding:16px 14px; }
  .page-product-detail .product-feature-panel { padding:26px 20px 28px; }
  .page-product-detail .product-feature-panel ul { grid-template-columns:1fr; }
  .page-product-detail .product-variants { margin-top:64px; }
  .page-product-detail .product-table-notice {
    padding:14px 16px;
    font-size:11px;
  }
  .page-product-detail .detail-confirmation {
    margin-top:58px;
    grid-template-columns:1fr;
  }
  .page-product-detail .detail-confirmation > div {
    padding:34px 22px;
    border-right:0;
    border-bottom:1px solid rgba(255,255,255,.16);
  }
  .page-product-detail .detail-confirmation h3 { font-size:32px; }
  .page-product-detail .detail-confirmation ol { grid-template-columns:1fr 1fr; }
  .page-product-detail .detail-confirmation li {
    min-height:118px;
    padding:20px 16px;
  }
  .page-product-detail .detail-confirmation li span { margin-bottom:24px; }
  .page-product-detail .detail-confirmation li strong { font-size:14px; }
  .page-product-detail .detail-scope .catalog-scope-grid,
  .page-product-detail .detail-inputs .feature-list {
    grid-template-columns:1fr;
  }
  .page-product-detail .detail-scope .catalog-scope-grid article,
  .page-product-detail .detail-scope .catalog-scope-grid article + article,
  .page-product-detail .detail-inputs .feature-list li,
  .page-product-detail .detail-inputs .feature-list li + li {
    min-height:0;
    padding:24px 20px;
    border-top:0;
    border-right:0;
    border-bottom:1px solid var(--detail-line);
    border-left:0;
  }
  .page-product-detail .detail-scope .catalog-scope-grid h3 { margin-top:38px; }
  .page-product-detail .detail-inputs .feature-list strong { margin-bottom:34px; }
  .page-product-detail.product-system-v4 .catalog-related {
    grid-template-columns:1fr;
  }
  .page-product-detail .catalog-related a > div { min-height:190px; }
}


@media print {
  .page-product-detail .site-header,
  .page-product-detail .global-footer,
  .page-product-detail .page-strip,
  .page-product-detail .catalog-detail-actions,
  .page-product-detail .page-cta,
  .page-product-detail #related { display:none !important; }
  .page-product-detail.product-system-v4 .catalog-detail-hero {
    width:100%;
    margin:0;
    grid-template-columns:1fr 1fr;
  }
  .page-product-detail.product-system-v4 .content-section {
    padding:38px 0;
  }
}
/* Explicit empty state for invalid or retired product links */
.catalog-not-found {
  width:min(900px,calc(100vw - 48px));
  min-height:calc(100svh - 250px);
  margin:0 auto;
  padding:120px 0;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
}
.catalog-not-found > p:first-child { color:#0b4f83; font-size:13px; font-weight:700; }
.catalog-not-found h1 { margin:18px 0 20px; font-size:clamp(46px,6vw,78px); line-height:1; }
.catalog-not-found > p:not(:first-child) { max-width:560px; color:#657178; line-height:1.85; }
.catalog-not-found .button { margin-top:34px; }