/* ====== 面包屑导航 ====== */
.prod-breadcrumb {
  max-width: 90%;
  margin: 0 auto;
  padding: 14px 5%;
  font-size: 0.82rem;
  color: var(--gray-4);
  display: flex;
  align-items: center;
  gap: 6px;
}
.prod-breadcrumb a {
  color: var(--gray-3);
  text-decoration: none;
  transition: color 0.2s;
}
.prod-breadcrumb a:hover { color: var(--primary); }
.prod-breadcrumb .bc-sep { color: var(--gray-4); font-size: 0.7rem; }
.prod-breadcrumb .bc-current { color: var(--gray-1); font-weight: 600; }

/* ====== 视图容器 ====== */
.prod-view { display: none; }
.prod-view.active { display: block; animation: viewFadeIn 0.4s ease; }
@keyframes viewFadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===========================================
   视图1：分类详情（左侧竖向Tab + 右侧卡片列表）
   =========================================== */
.cat-detail {
  max-width: 90%;
  margin: 0 auto;
  padding: 24px 5% 100px;
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

/* ---- 左侧竖向 Tab 栏 ---- */
.cat-tabs-wrap {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 8px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
}
.cat-tabs {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
/* 桌面端隐藏滚动条 */
.cat-tabs-scrollbar { display: none; }
.cat-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-2);
  cursor: pointer;
  white-space: nowrap;
  border-radius: 10px;
  transition: all 0.25s var(--easing);
  position: relative;
  border: 1.5px solid transparent;
}
.cat-tab:hover {
  color: var(--gray-1);
  background: var(--off-white);
}
.cat-tab.active {
  color: var(--primary);
  background: var(--primary-pale);
  border-color: rgba(0,87,184,0.2);
}
.cat-tab-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.88rem;
  flex-shrink: 0;
  transition: all 0.25s var(--easing);
}
/* 各分类 icon 颜色（默认态） */
.cat-tab .cat-tab-icon { background: var(--primary-pale); color: var(--primary); }
.cat-tab:hover .cat-tab-icon { background: #d4e4fa; }
/* active 态 icon */
.cat-tab.active .cat-tab-icon { background: var(--primary); color: #fff; box-shadow: 0 3px 8px rgba(0,87,184,0.3); }
.cat-tab-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.cat-tab-name { line-height: 1.3; }

/* ---- 右侧内容区 ---- */
.cat-content-area {
  flex: 1;
  min-width: 0;
  transition: opacity 0.2s ease;
}
.cat-content-area.switching {
  opacity: 0;
  transform: translateY(6px);
}

/* ---- 分类简介条 ---- */
.cat-info-bar {
  padding: 18px 22px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: linear-gradient(to right, #f0f5ff, #f8faff);
  border-radius: 14px;
  border: 1px solid rgba(17,85,204,0.1);
  transition: background 0.4s, border-color 0.4s;
}
/* 分类主题色简介条 */
.cat-theme-led .cat-info-bar,
.cat-theme-special .cat-info-bar,
.cat-theme-die .cat-info-bar { background: linear-gradient(to right, #f0f5ff, #f8faff); border-color: rgba(17,85,204,0.1); }
.cat-info-left { display: flex; align-items: center; gap: 16px; }
.cat-info-icon {
  width: 50px; height: 50px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}
.cat-info-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--gray-1);
  margin-bottom: 4px;
  transition: color 0.4s;
}
.cat-theme-led .cat-info-name,
.cat-theme-special .cat-info-name,
.cat-theme-die .cat-info-name { color: var(--gray-1); }
.cat-info-desc {
  font-size: 0.83rem;
  color: var(--gray-3);
  line-height: 1.6;
  max-width: 100%;
}
.cat-info-right {
  text-align: center;
  flex-shrink: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 20px;
}
.cat-info-right-num {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
  letter-spacing: -1px;
}
.cat-info-right-label {
  font-size: 0.72rem;
  color: var(--gray-4);
  margin-top: 2px;
}

/* ---- 产品列表（竖版） ---- */
.cat-products-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ---- 翻页组件 ---- */
.prod-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
  padding: 20px 0 8px;
}
.pg-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--gray-2);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.22s var(--easing);
  white-space: nowrap;
}
.pg-btn:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-pale);
}
.pg-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pg-numbers {
  display: flex;
  align-items: center;
  gap: 6px;
}
.pg-num {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--gray-2);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.22s var(--easing);
}
.pg-num:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-pale);
}
.pg-num.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 3px 10px rgba(0,87,184,0.3);
}

/* ---- 产品行卡片（横向宽条） ---- */
.prod-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.28s var(--easing), box-shadow 0.28s var(--easing), border-color 0.28s;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  position: relative;
  opacity: 0;
  transform: translateY(16px);
}
.prod-card.reveal.visible {
  opacity: 1;
  transform: translateY(0);
  transition: transform 0.5s var(--easing), box-shadow 0.28s var(--easing), border-color 0.28s, opacity 0.45s ease;
}
.prod-card:hover {
  transform: translateX(4px);
  box-shadow: 0 10px 40px rgba(0,40,160,0.12);
  border-color: rgba(17,85,204,0.3);
}
.prod-card.reveal.visible:hover {
  transform: translateX(4px);
}

/* 左侧色条（竖向） */
.prod-card-bar {
  width: 5px;
  min-height: 100%;
  flex-shrink: 0;
}

/* 左侧产品图区 */
.prod-card-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  min-width: 180px;
  flex-shrink: 0;
}
.prod-card-img {
  width: 150px;
  height: 110px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--off-white);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s var(--easing);
}
.prod-card-img img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}
.prod-card:hover .prod-card-img { transform: scale(1.05); }
.prod-card-index {
  font-size: 0.62rem;
  font-weight: 800;
  color: var(--gray-4);
  letter-spacing: 1px;
  margin-top: 8px;
}

/* 中间主体区 */
.prod-card-body {
  padding: 20px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}
.prod-card-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.prod-card-model {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--gray-1);
  letter-spacing: -0.3px;
  line-height: 1.2;
}
.prod-card-series {
  display: inline-block;
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-pale);
  padding: 2px 9px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}
.prod-card-sub {
  font-size: 0.82rem;
  color: var(--gray-3);
  line-height: 1.5;
  margin-bottom: 12px;
}
/* 特性 Tag 标签式（水平流动） */
.prod-card-feats {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.prod-card-feat-tag {
  font-size: 0.73rem;
  color: var(--gray-2);
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 3px 10px;
  line-height: 1.5;
  transition: background 0.2s, border-color 0.2s;
}
.prod-card:hover .prod-card-feat-tag {
  background: #eef2ff;
  border-color: rgba(17,85,204,0.18);
}
/* 各分类 feat tag hover 统一蓝色 */
.prod-card:hover .prod-card-feat-tag {
  background: #eef2ff;
  border-color: rgba(17,85,204,0.18);
}

/* 右侧规格 + CTA 区 */
.prod-card-right {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  min-width: 260px;
  max-width: 310px;
  flex-shrink: 0;
}
/* 规格三格（竖向排列） */
.prod-card-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  background: transparent;
  flex: 1;
}
.prod-card-spec {
  background: var(--off-white);
  padding: 14px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.prod-card:hover .prod-card-spec { background: #edf2ff; }
.prod-card-spec-val {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 4px;
}
/* 各分类强调色 — 统一蓝色 */
.prod-card-spec-val { color: var(--primary); }
.prod-card-spec-label {
  font-size: 0.6rem;
  color: var(--gray-4);
  line-height: 1.3;
}
/* CTA 按钮行 */
.prod-card-cta-row {
  padding: 12px 16px;
  background: var(--white);
  border-top: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.prod-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  transition: gap 0.2s;
}
.prod-card:hover .prod-card-cta { gap: 10px; }
.prod-card-app {
  font-size: 0.65rem;
  color: var(--gray-4);
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- 响应式：移动端竖Tab→横Tab ---- */
@media (max-width: 860px) {
  .cat-detail {
    flex-direction: column;
    gap: 16px;
    padding: 16px 4% 80px;
  }
  .cat-tabs-wrap {
    width: 100%;
    position: relative !important;
    top: auto !important;
    border-radius: 10px;
    padding: 4px;
    background: var(--gray-5);
    border: none;
    overflow: hidden;
  }
  /* 左右渐变遮罩（提示可滑动） */
  .cat-tabs-wrap::before,
  .cat-tabs-wrap::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    width: 20px;
    z-index: 2;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.25s;
  }
  .cat-tabs-wrap::before {
    left: 4px;
    background: linear-gradient(to right, var(--gray-5), transparent);
    border-radius: 10px 0 0 10px;
  }
  .cat-tabs-wrap::after {
    right: 4px;
    background: linear-gradient(to left, var(--gray-5), transparent);
    border-radius: 0 10px 10px 0;
  }
  .cat-tabs-wrap.scroll-left::before { opacity: 1; }
  .cat-tabs-wrap.scroll-right::after { opacity: 1; }
  .cat-tabs {
    flex-direction: row;
    overflow-x: auto;
    scrollbar-width: none;
    gap: 2px;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
    scroll-padding: 4px;
  }
  .cat-tabs::-webkit-scrollbar { display: none; }
  .cat-tab {
    border-left: none;
    border-bottom: none;
    padding: 10px 12px;
    border-radius: 8px;
    flex-shrink: 0;
    min-width: 0;
    background: transparent;
    color: var(--gray-3);
    font-size: 0.82rem;
    font-weight: 600;
    transition: all 0.22s;
    gap: 6px;
    -webkit-tap-highlight-color: transparent;
    scroll-snap-align: start;
    border: 1.5px solid transparent;
  }
  .cat-tab-icon {
    width: 30px !important;
    height: 30px !important;
    border-radius: 8px !important;
    font-size: 0.72rem !important;
  }
  .cat-tab-text {
    flex-direction: row !important;
    gap: 6px !important;
    align-items: center;
    min-width: 0;
  }
  .cat-tab-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.8rem;
  }
  .cat-tab:hover {
    background: rgba(255,255,255,0.85);
    color: var(--gray-1);
  }
  .cat-tab.active {
    background: var(--white);
    border-left-color: transparent;
    font-weight: 700;
    box-shadow: 0 1px 8px rgba(0,0,0,0.08);
  }
  /* 移动端 active 态 — 统一蓝色 */
  .cat-tab.active {
    color: var(--primary);
    background: #fff;
    border-color: rgba(0,87,184,0.15);
  }
  /* 自定义滚动进度条 */
  .cat-tabs-scrollbar {
    display: block;
    height: 3px;
    background: rgba(0,0,0,0.06);
    border-radius: 2px;
    margin: 6px 0 0;
    position: relative;
    cursor: pointer;
    /* 扩大触摸区域 */
    padding: 8px 0;
    margin-top: 2px;
    opacity: 0;
    transition: opacity 0.3s;
  }
  .cat-tabs-scrollbar.visible { opacity: 1; }
  .cat-tabs-scrollbar-thumb {
    height: 3px;
    min-width: 24px;
    background: var(--primary);
    border-radius: 2px;
    opacity: 0.5;
    transition: opacity 0.2s, height 0.15s;
    position: relative;
    top: -8px;
  }
  .cat-tabs-scrollbar-thumb.dragging {
    opacity: 1;
    height: 4px;
  }
  /* 卡片竖版→竖排 */
  .prod-card { flex-direction: column; }
  .prod-card-bar { width: 100%; height: 5px; min-height: auto; }
  .prod-card-left {
    flex-direction: row;
    border-right: none;
    padding: 14px 20px;
    min-width: auto;
    gap: 12px;
    align-items: center;
  }
  .prod-card-right {
    min-width: auto;
    max-width: none;
    border-left: none;
  }
  .prod-card-specs { gap: 0; }
  .prod-card-cta-row { padding: 10px 16px; }
  .prod-card-body { padding: 16px 18px; }
  .prod-card-feats { gap: 5px; }
  .prod-card-feat-tag { font-size: 0.68rem; padding: 2px 8px; }
}

/* ===========================================
   视图2：产品详情
   =========================================== */
.product-detail {
  max-width: 90%;
  margin: 0 auto;
  padding: 0 5% 80px;
}
.pd-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--gray-2);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.22s var(--easing);
  margin-bottom: 28px;
}
.pd-back-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-pale);
}
/* Header */
.pd-header {
  margin-bottom: 32px;
}
.pd-header-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.pd-header h2 {
  font-size: 2rem;
  font-weight: 900;
  color: var(--gray-1);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: 8px;
}
.pd-header-series {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  vertical-align: middle;
}
.pd-header-sub {
  font-size: 0.92rem;
  color: var(--gray-3);
  line-height: 1.6;
}
/* Layout: left + right */
/* Layout: left image + right content */
.pd-layout {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}
.pd-left {
  width: 38%;
  flex-shrink: 0;
}
.pd-right {
  flex: 1;
  min-width: 0;
}
/* Image */
.pd-img-box {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--off-white);
  margin-bottom: 20px;
}
.pd-real-img {
  width: 100%;
  height: auto;
  display: block;
}
.pd-img-placeholder {
  width: 100%;
  height: 240px;
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--gray-4);
  font-size: 0.85rem;
}
.pd-img-placeholder i { font-size: 2.5rem; }
/* Application box */
.pd-app-box {
  background: linear-gradient(135deg, #f0f5ff, #e8f0fe);
  border: 1px solid rgba(17,85,204,0.1);
  border-radius: 14px;
  padding: 20px;
}
.pd-app-box-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.pd-app-box p {
  font-size: 0.82rem;
  color: var(--gray-2);
  line-height: 1.7;
  margin: 0;
}
/* Application box color variants */
.pd-app-box-green { background: linear-gradient(135deg, #f0faf0, #e8f5e8); border-color: rgba(16,163,65,0.12); }
.pd-app-box-green .pd-app-box-title { color: #10a341; }
.pd-app-box-orange { background: linear-gradient(135deg, #fef5ec, #fdebd0); border-color: rgba(230,126,34,0.12); }
.pd-app-box-orange .pd-app-box-title { color: #e67e22; }
.pd-app-box-purple { background: linear-gradient(135deg, #f5f0fa, #ede5f5); border-color: rgba(125,87,163,0.12); }
.pd-app-box-purple .pd-app-box-title { color: #7d57a3; }
.pd-app-box-teal { background: linear-gradient(135deg, #eef8f8, #e0f2f2); border-color: rgba(0,150,136,0.12); }
.pd-app-box-teal .pd-app-box-title { color: #009688; }
/* Key specs */
.pd-key-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}
.pd-key-spec-item {
  background: var(--off-white);
  border-radius: 14px;
  padding: 18px 14px;
  text-align: center;
}
.pd-key-spec-val {
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 4px;
  line-height: 1.2;
}
.pd-key-spec-label {
  font-size: 0.72rem;
  color: var(--gray-4);
  line-height: 1.3;
}
/* Sub title */
.pd-sub-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--gray-1);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary-pale);
}
/* Features list */
.pd-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.pd-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--gray-2);
  line-height: 1.6;
}
.pd-features li i {
  color: var(--primary);
  margin-top: 4px;
  flex-shrink: 0;
  font-size: 0.55rem;
}
/* Spec details */
.pd-spec-details {
  background: var(--off-white);
  border-radius: 14px;
  border: 1px solid var(--border);
  margin-bottom: 28px;
}
.pd-spec-details summary {
  padding: 16px 20px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gray-1);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color 0.2s;
}
.pd-spec-details summary:hover { color: var(--primary); }
.pd-spec-details summary i { margin-left: auto; transition: transform 0.3s; }
.pd-spec-details[open] summary i { transform: rotate(180deg); }
.pd-spec-table {
  width: 100%;
  border-collapse: collapse;
}
.pd-spec-table tr { border-bottom: 1px solid var(--border); }
.pd-spec-table tr:last-child { border-bottom: none; }
.pd-spec-table th {
  background: var(--primary-pale);
  padding: 10px 16px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
  text-align: left;
}
.pd-spec-table td {
  padding: 10px 16px;
  font-size: 0.82rem;
  color: var(--gray-2);
}
.pd-spec-table td:first-child {
  font-weight: 600;
  color: var(--gray-1);
  width: 40%;
  background: rgba(240,245,255,0.5);
}
/* CTA row */
.pd-cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.pd-inquire-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--primary);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.25s var(--easing);
}
.pd-inquire-btn:hover {
  background: rgba(0,87,184,0.3);
  color:#000000;
  border:1px solid rgba(0,0,0,0.15);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,87,184,0.3);
}
.pd-datasheet-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border: 1.5px solid var(--border);
  color: var(--gray-2);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.25s var(--easing);
}
.pd-datasheet-link:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-pale);
}
/* Detail responsive */
@media (max-width: 860px) {
  .pd-layout { flex-direction: column; gap: 24px; }
  .pd-left { width: 100%; }
  .pd-header h2 { font-size: 1.5rem; }
  .pd-key-specs { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .pd-cta-row { flex-direction: column; }
  .pd-inquire-btn, .pd-datasheet-link { justify-content: center; }
}
@media (max-width: 480px) {
  .pd-key-specs { grid-template-columns: repeat(2, 1fr); }
  .pd-header h2 { font-size: 1.3rem; }
}