/* ===========================================================
   uwb-lock.html — UWB 智能门锁完整方案（详情页）
   基础组件复用 cbu5000v210.css + uwb-remote.css；
   本表只保留门锁页专用块与三个 split 模块的卡片样式。
   =========================================================== */

/* ---------- Hero 右侧图：门锁场景图为横向构图，放大并弱化遮罩 ---------- */
.cb-page .ul-hero-visual img { max-width: 780px;
  -webkit-mask-image: radial-gradient(ellipse 88% 80% at 50% 48%, #000 55%, transparent 100%);
  mask-image: radial-gradient(ellipse 88% 80% at 50% 48%, #000 55%, transparent 100%); }

/* ---------- 场景横幅 ---------- */
.ul-scenario-banner { margin-top: 44px; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); box-shadow: 0 4px 18px rgba(15,23,42,.06); background: #fff; }
.ul-scenario-banner img { width: 100%; height: auto; display: block; }

/* ---------- Aliro 协议栈分层架构（可交互，替代静态框架图） ---------- */
.ul-arch { width: 100%; max-width: 1080px; margin: 0 auto; }
.ul-arch-row { display: flex; align-items: flex-start; }

/* 左侧：层卡片 */
.ul-arch-layer {
  flex: 0 0 460px; max-width: 100%;
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px; border-radius: var(--radius);
  background: #fff; border: 1.5px solid var(--line);
  box-shadow: 0 4px 18px rgba(15,23,42,.06);
  text-align: left; position: relative; overflow: hidden;
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}
.ul-arch-layer::before {
  content: ''; position: absolute; inset: 0; border-radius: var(--radius);
  opacity: .05; transition: opacity .28s ease; pointer-events: none;
}
.ul-arch-layer:hover { transform: translateX(4px); box-shadow: 0 8px 26px rgba(15,23,42,.1); }
.ul-arch-layer:hover::before { opacity: .1; }
.ul-arch-layer.active { border-width: 2px; padding: 15.5px 17.5px; }
.ul-arch-layer:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

.ul-arch-icon { flex: 0 0 34px; height: 34px; border-radius: 10px; position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: center; transition: transform .28s ease; }
.ul-arch-layer.active .ul-arch-icon { transform: scale(1.1); }
.ul-arch-icon svg { width: 20px; height: 20px; display: block; }

.ul-arch-text { flex: 1 1 auto; min-width: 0; position: relative; z-index: 1; }
.ul-arch-title { display: block; font-size: 14.5px; font-weight: 600; color: var(--ink); margin-bottom: 3px; }
.ul-arch-desc { display: block; font-size: 11.5px; line-height: 1.55; color: var(--muted); }

.ul-arch-right { flex: 0 0 auto; position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: 5px; }
.ul-arch-dot { width: 8px; height: 8px; border-radius: 50%; animation: ulArchPulse 2s infinite; }
.ul-arch-tag { font-size: 9.5px; letter-spacing: .4px; color: var(--muted); white-space: nowrap; }
.ul-arch-caret { font-size: 13px; line-height: 1; color: #B6BECC; margin-top: 1px;
  transition: transform .3s ease, color .3s ease; }
.ul-arch-layer.active .ul-arch-caret { transform: rotate(180deg); color: var(--ink-soft); }

@keyframes ulArchPulse {
  0%, 100% { box-shadow: 0 0 0 0 currentColor; opacity: 1; }
  50%      { box-shadow: 0 0 0 6px transparent; opacity: .55; }
}

/* 层间箭头 */
.ul-arch-arrow { width: 0; height: 0; margin: 7px 0 7px 230px; transform: translateX(-50%);
  border-left: 7px solid transparent; border-right: 7px solid transparent;
  border-top: 10px solid #C8D0E0; animation: ulArchBlink 1.8s infinite; }
@keyframes ulArchBlink { 0%, 100% { opacity: .45; } 50% { opacity: .9; } }

/* 右侧：详情抽屉
   宽度固定不动，只动高度（grid-template-rows 0fr→1fr）。
   ★ 关键：宽度若一起动，内层文字会随宽度变窄而换行、内容变高，
     1fr 轨道跟着"鼓"一下再塌，收起/展开都会抖动。保持宽度恒定，
     内容高度恒定，动画才是单调平滑的。 */
.ul-arch-drawer { flex: 0 0 580px; margin-left: 14px;
  display: grid; grid-template-rows: minmax(0, 0fr); overflow: hidden; opacity: 0;
  transition: grid-template-rows .45s cubic-bezier(.4,0,.2,1), opacity .3s ease; }
/* minmax(0,…)：Nfr 默认是 minmax(auto,Nfr)，auto 下限=内层 padding+border=40px，
   不写 0 收起后会残留 40px 空白 */
.ul-arch-row.open .ul-arch-drawer { grid-template-rows: minmax(0, 1fr); opacity: 1; }
.ul-arch-drawer-inner { min-width: 0; min-height: 0; padding: 18px 22px 20px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line); border-left-width: 4px; border-left-color: var(--line);
  box-shadow: 0 4px 18px rgba(15,23,42,.06); }
.ul-arch-dtitle { display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  font-size: 14px; font-weight: 700; margin-bottom: 12px; }
.ul-arch-badge { font-size: 11px; font-weight: 500; padding: 2px 10px; border-radius: 10px;
  background: var(--zone-soft); color: var(--ink-soft); }
.ul-arch-body { font-size: 13px; line-height: 1.95; color: var(--ink-soft); }
.ul-arch-body code { display: inline-block; margin-right: 8px; padding: 1px 8px;
  background: var(--zone-soft); border: 1px solid var(--line); border-radius: 5px;
  font-size: 12px; color: var(--ink); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* 图例与提示（放在分层图上方） */
.ul-arch-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 10px; }
.ul-arch-legend span { display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 14px; background: #fff; border: 1px solid var(--line); border-radius: 20px; }
.ul-arch-legend i { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.ul-arch-legend b { font-size: 12px; font-weight: 500; color: var(--muted); }
.ul-arch-hint { margin: 0 0 24px; text-align: center; font-size: 12px; color: var(--muted); }

/* 各层主题色（统一品牌蓝系，按层级明度梯度区分 L1→L6；保留图例的层级对应意义） */
.ul-arch-layer.l1::before { background: linear-gradient(135deg, #2D6BE6, #1A4DB5); }
.ul-arch-layer.l2::before { background: linear-gradient(135deg, #3D7DF0, #2559C9); }
.ul-arch-layer.l3::before { background: linear-gradient(135deg, #4F8FF5, #2D6BE6); }
.ul-arch-layer.l4::before { background: linear-gradient(135deg, #7BA6F3, #4F86EF); }
.ul-arch-layer.l5::before { background: linear-gradient(135deg, #A9C8F8, #7BA6F3); }
.ul-arch-layer.l6::before { background: linear-gradient(135deg, #C9DDFB, #A9C8F8); }

.ul-arch-layer.l1 .ul-arch-icon { background: rgba(26,77,181,.12); }
.ul-arch-layer.l2 .ul-arch-icon { background: rgba(37,89,201,.12); }
.ul-arch-layer.l3 .ul-arch-icon { background: rgba(45,107,230,.12); }
.ul-arch-layer.l4 .ul-arch-icon { background: rgba(79,134,239,.12); }
.ul-arch-layer.l5 .ul-arch-icon { background: rgba(123,166,243,.12); }
.ul-arch-layer.l6 .ul-arch-icon { background: rgba(169,200,248,.12); }

.ul-arch-layer.l1 .ul-arch-icon svg { fill: #1A4DB5; }
.ul-arch-layer.l2 .ul-arch-icon svg { fill: #2559C9; }
.ul-arch-layer.l3 .ul-arch-icon svg { fill: #2D6BE6; }
.ul-arch-layer.l4 .ul-arch-icon svg { fill: #4F86EF; }
.ul-arch-layer.l5 .ul-arch-icon svg { fill: #7BA6F3; }
.ul-arch-layer.l6 .ul-arch-icon svg { fill: #A9C8F8; }

.ul-arch-layer.l1 .ul-arch-dot { background: #1A4DB5; color: #1A4DB5; }
.ul-arch-layer.l2 .ul-arch-dot { background: #2559C9; color: #2559C9; }
.ul-arch-layer.l3 .ul-arch-dot { background: #2D6BE6; color: #2D6BE6; }
.ul-arch-layer.l4 .ul-arch-dot { background: #4F86EF; color: #4F86EF; }
.ul-arch-layer.l5 .ul-arch-dot { background: #7BA6F3; color: #7BA6F3; }
.ul-arch-layer.l6 .ul-arch-dot { background: #A9C8F8; color: #A9C8F8; }

.ul-arch-layer.l1.active { border-color: #1A4DB5; }
.ul-arch-layer.l2.active { border-color: #2559C9; }
.ul-arch-layer.l3.active { border-color: #2D6BE6; }
.ul-arch-layer.l4.active { border-color: #4F86EF; }
.ul-arch-layer.l5.active { border-color: #7BA6F3; }
.ul-arch-layer.l6.active { border-color: #A9C8F8; }

.ul-arch-drawer[data-drawer="1"] .ul-arch-drawer-inner { border-left-color: #1A4DB5; }
.ul-arch-drawer[data-drawer="2"] .ul-arch-drawer-inner { border-left-color: #2559C9; }
.ul-arch-drawer[data-drawer="3"] .ul-arch-drawer-inner { border-left-color: #2D6BE6; }
.ul-arch-drawer[data-drawer="4"] .ul-arch-drawer-inner { border-left-color: #4F86EF; }
.ul-arch-drawer[data-drawer="5"] .ul-arch-drawer-inner { border-left-color: #7BA6F3; }
.ul-arch-drawer[data-drawer="6"] .ul-arch-drawer-inner { border-left-color: #A9C8F8; }

.ul-arch-drawer[data-drawer="1"] .ul-arch-dtitle { color: #1A4DB5; }
.ul-arch-drawer[data-drawer="2"] .ul-arch-dtitle { color: #2559C9; }
.ul-arch-drawer[data-drawer="3"] .ul-arch-dtitle { color: #2D6BE6; }
.ul-arch-drawer[data-drawer="4"] .ul-arch-dtitle { color: #4F86EF; }
.ul-arch-drawer[data-drawer="5"] .ul-arch-dtitle { color: #7BA6F3; }
.ul-arch-drawer[data-drawer="6"] .ul-arch-dtitle { color: #A9C8F8; }

/* ---------- 生态 logo 栏 ---------- */
.ul-eco-bar { display: flex; align-items: center; justify-content: center; gap: 64px; flex-wrap: wrap;
  padding: 28px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 4px 18px rgba(15,23,42,.06); }
.ul-eco-bar img { max-height: 42px; width: auto; max-width: 150px; object-fit: contain; }
.ul-eco-note { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 18px; }
.ul-eco-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 10px 18px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
.ul-eco-links-label { font-size: 13px; font-weight: 700; color: var(--muted);
  text-transform: uppercase; letter-spacing: .6px; }
.ul-eco-links a { display: inline-flex; align-items: center; gap: 4px;
  font-size: 14px; font-weight: 600; color: var(--blue); text-decoration: none; }
.ul-eco-links a:hover { text-decoration: underline; }
.ul-eco-links a .ext { font-size: 12px; line-height: 1; opacity: .7; }

/* ---------- 竞争力模块：位置感知 / 雷达 / 认证 三处统一卡片样式 ---------- */
.cb-page #position .cb-split,
.cb-page #radar .cb-split,
.cb-page #certification .cb-split { gap: 40px; align-items: stretch; }
.cb-page #position .cb-split-text.ur-radar-card,
.cb-page #radar .cb-split-text.ur-radar-card,
.cb-page #certification .cb-split-text.ur-radar-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 40px; box-shadow: 0 4px 18px rgba(15, 23, 42, .06); position: relative;
}
.cb-page #position .cb-split-text.ur-radar-card::before,
.cb-page #radar .cb-split-text.ur-radar-card::before,
.cb-page #certification .cb-split-text.ur-radar-card::before {
  content: ""; position: absolute; left: 24px; right: 24px; top: 0;
  height: 3px; background: linear-gradient(90deg, var(--blue), var(--blue-100)); border-radius: 0 0 3px 3px;
}
.cb-page #position .cb-split-visual.ur-radar-visual,
.cb-page #radar .cb-split-visual.ur-radar-visual,
.cb-page #certification .cb-split-visual.ur-radar-visual {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px; box-shadow: 0 4px 18px rgba(15, 23, 42, .06);
  display: flex; align-items: center; justify-content: center;
}
.cb-page #position .ur-radar-card .cb-feat-list li,
.cb-page #radar .ur-radar-card .cb-feat-list li,
.cb-page #certification .ur-radar-card .cb-feat-list li {
  padding: 14px 0 14px 28px; border-bottom: 1px dashed var(--line); position: relative;
}
.cb-page #position .ur-radar-card .cb-feat-list li:last-child,
.cb-page #radar .ur-radar-card .cb-feat-list li:last-child,
.cb-page #certification .ur-radar-card .cb-feat-list li:last-child { border-bottom: 0; }

/* 认证支持：只保留 Test Harness 日志一张图，按原始宽比例展示避免文字被裁 */
.cb-page #certification .ur-gallery-test { grid-template-columns: 1fr; }
.cb-page #certification .ur-gallery-test img { aspect-ratio: auto; height: auto; object-fit: contain; }

/* ---------- 响应式 ---------- */
/* 容器变窄时，层卡片与抽屉改为按比例分配宽度（宽度仍恒定，不参与动画） */
@media (max-width: 1140px) {
  .ul-arch-layer { flex: 0 0 48%; }
  .ul-arch-drawer { flex: 1 1 0; margin-left: 14px; }
  .ul-arch-arrow { margin-left: 24%; }
}
/* 窄屏：抽屉改为展开到卡片下方 */
@media (max-width: 900px) {
  .ul-arch-row { flex-direction: column; }
  .ul-arch-layer { flex: 1 1 auto; width: 100%; }
  .ul-arch-drawer { flex: 1 1 auto; width: 100%; margin-left: 0; margin-top: 10px; }
  .ul-arch-arrow { margin-left: 50%; }
  .ul-arch-layer.active .ul-arch-caret { transform: rotate(90deg); }
  .cb-page .ul-hero-visual img { max-width: 520px; }
  .ul-eco-bar { gap: 40px; }
}
@media (max-width: 560px) {
  .ul-arch-layer { padding: 14px; gap: 10px; }
  .ul-arch-layer.active { padding: 13.5px 13.5px; }
  .ul-arch-desc { font-size: 11px; }
  .ul-arch-drawer-inner { padding: 16px 16px 18px; }
  .ul-arch-body { font-size: 12.5px; line-height: 1.85; }
}
@media (max-width: 620px) {
  .ul-eco-bar img { max-height: 34px; }
  .cb-page #position .ur-radar-card,
  .cb-page #radar .ur-radar-card,
  .cb-page #certification .ur-radar-card { padding: 24px !important; }
  .cb-page #position .ur-radar-visual,
  .cb-page #radar .ur-radar-visual,
  .cb-page #certification .ur-radar-visual { padding: 10px !important; }
}

/* ===== 实战案例：定点测角实测（#position 模块内） ===== */
.cb-page .ulk-case{
  margin-top:52px;
  padding:36px 40px 40px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:var(--white);
  box-shadow:0 8px 30px rgba(46,107,255,.06);
}
.cb-page .ulk-case-head{ margin-bottom:28px; }
.cb-page .ulk-case-title{
  font-size:clamp(20px,2.2vw,26px);
  font-weight:600;
  line-height:1.4;
  letter-spacing:-.01em;
  margin-bottom:10px;
}
.cb-page .ulk-case-head .cb-body{ margin-bottom:0; }

/* 四个核心指标 */
.cb-page .ulk-metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-bottom:32px;
}
.cb-page .ulk-metric{
  padding:20px 18px;
  border-radius:var(--radius);
  background:linear-gradient(180deg,var(--blue-50) 0%,#fff 100%);
  border:1px solid var(--blue-100);
  text-align:center;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.cb-page .ulk-metric-num{
  font-size:clamp(24px,3vw,32px);
  font-weight:700;
  color:var(--blue);
  letter-spacing:-.02em;
  line-height:1.15;
}
.cb-page .ulk-metric-lbl{
  font-size:13px;
  color:var(--muted);
  line-height:1.5;
}

/* 图表 + 视频 双栏：两者按各自自然比例显示，不强行等高
   列宽相等 1fr:1fr（误差图 1.66:1，视频 16:9，列宽相等时高度差约 7% 自然过渡）
   关键：不拉伸不变形 —— 图 1.66:1 contain 进 16:9 会出现大块白边（左图就是被这个坑了） */
.cb-page .ulk-case-media{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  align-items:center;   /* 两列垂直居中：左图更高时，高度差上下均分，视觉更平衡 */
}
.cb-page .ulk-fig{ margin:0; }
.cb-page .ulk-fig img{
  width:100%;
  height:auto;            /* 保持原图 1.66:1 自然比例，不被视频 16:9 拉伸 */
  display:block;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:#fff;
}
.cb-page .ulk-fig figcaption{
  margin-top:10px;
  font-size:12.5px;
  color:var(--muted);
  line-height:1.6;
}

/* 视频列（figure 包裹，与左图对称：视频 + 图注 + 文件元数据） */
.cb-page .ulk-vfig{ margin:0; }
.cb-page .ulk-vfig figcaption{
  margin-top:10px;
  font-size:12.5px;
  color:var(--muted);
  line-height:1.6;
}

/* 视频：poster + 居中播放键，点击才加载 */
.cb-page .ulk-video{
  position:relative;
  aspect-ratio:16/9;
  border-radius:var(--radius);
  overflow:hidden;
  background:#000;
  border:1px solid var(--line);
}
.cb-page .ulk-poster{
  position:absolute; inset:0;
  background-size:cover;
  background-position:center;
  transition:opacity .3s ease;
}
.cb-page .ulk-video video{
  position:absolute; inset:0;
  width:100%; height:100%;
  object-fit:cover;
  display:block;
}
/* 静默态：只显示 poster，隐藏 video 元素本体 */
.cb-page .ulk-video.is-idle video{ opacity:0; pointer-events:none; }
.cb-page .ulk-video.is-playing .ulk-poster{ opacity:0; }
.cb-page .ulk-play{
  position:absolute;
  top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:58px; height:58px;
  border-radius:50%;
  border:none;
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(4px);
  cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  transition:.2s;
  z-index:2;
}
.cb-page .ulk-play::before{
  content:'';
  display:block;
  width:0; height:0;
  border-style:solid;
  border-width:10px 0 10px 16px;
  border-color:transparent transparent transparent #fff;
  margin-left:4px;
  transition:.2s;
}
.cb-page .ulk-play:hover{ background:rgba(46,107,255,.85); transform:translate(-50%,-50%) scale(1.08); }
/* 播放中把三角变成暂停条 */
.cb-page .ulk-video.is-playing .ulk-play{ opacity:0; }
.cb-page .ulk-video.is-playing:hover .ulk-play{ opacity:1; }
.cb-page .ulk-video.is-playing .ulk-play::before{
  width:14px; height:16px;
  border:none;
  background:none;
  border-left:5px solid #fff;
  border-right:5px solid #fff;
  margin-left:0;
}
.cb-page .ulk-vbadge{
  position:absolute;
  top:12px; left:12px;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(0,0,0,.55);
  backdrop-filter:blur(4px);
  color:#fff;
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.04em;
  z-index:2;
}
.cb-page .ulk-vnote{
  margin-top:4px;
  font-size:11.5px;
  color:#9AA4B2;
  line-height:1.5;
}

/* 折叠数据表 */
.cb-page .ulk-table{
  margin-top:28px;
  border-top:1px solid var(--line);
  padding-top:20px;
}
.cb-page .ulk-table > summary{
  cursor:pointer;
  font-size:14px;
  font-weight:600;
  color:var(--blue);
  list-style:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  user-select:none;
}
.cb-page .ulk-table > summary::-webkit-details-marker{ display:none; }
.cb-page .ulk-table > summary::before{
  content:'';
  width:0; height:0;
  border-style:solid;
  border-width:5px 0 5px 8px;
  border-color:transparent transparent transparent var(--blue);
  transition:transform .2s ease;
}
.cb-page .ulk-table[open] > summary::before{ transform:rotate(90deg); }
.cb-page .ulk-table-wrap{
  margin-top:16px;
  max-height:340px;
  overflow:auto;
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.cb-page .ulk-table table{
  width:100%;
  border-collapse:collapse;
  font-size:13px;
}
.cb-page .ulk-table thead th{
  position:sticky;
  top:0;
  background:var(--blue-50);
  color:var(--ink);
  font-weight:600;
  text-align:right;
  padding:10px 14px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.cb-page .ulk-table thead th:first-child{ text-align:left; }
.cb-page .ulk-table tbody td{
  padding:8px 14px;
  border-bottom:1px solid var(--line);
  text-align:right;
  font-variant-numeric:tabular-nums;
  color:var(--ink-soft);
}
.cb-page .ulk-table tbody td:first-child{ text-align:left; font-weight:600; color:var(--ink); }
.cb-page .ulk-table tbody tr:last-child td{ border-bottom:none; }
.cb-page .ulk-table tbody tr:hover td{ background:var(--blue-50); }
.cb-page .ulk-table tfoot td{
  padding:11px 14px;
  background:var(--blue-50);
  font-weight:600;
  color:var(--ink);
  text-align:right;
  font-size:13px;
}
.cb-page .ulk-table tfoot td:first-child{ text-align:left; }
.cb-page .ulk-table tfoot .ulk-pass{ color:var(--blue); font-size:15px; }

/* 响应式 */
@media (max-width:1024px){
  .cb-page .ulk-metrics{ grid-template-columns:repeat(2,1fr); }
  .cb-page .ulk-case-media{ grid-template-columns:1fr; gap:20px; }
}
@media (max-width:620px){
  .cb-page .ulk-case{ padding:24px 20px 28px; margin-top:36px; }
  .cb-page .ulk-metrics{ grid-template-columns:repeat(2,1fr); gap:12px; }
  .cb-page .ulk-metric{ padding:16px 12px; }
}

/* ---------- 图片加载淡入（pilot：仅本课页面；JS 给 <html> 加 .img-fx 后生效，无 JS 零回归） ---------- */
.img-fx .cb-page img{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .55s ease, transform .55s ease;
}
.img-fx .cb-page img.img-loaded{ opacity:1; transform:none; }

/* 认证支持：堆叠式（上文字卡片 + 下图），打破与前后区块的图文交替三连 */
.cb-page #certification .ur-cert-stack { display: flex; flex-direction: column; gap: 24px; align-items: stretch; }
.cb-page #certification .ur-cert-figure { background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px; box-shadow: 0 4px 18px rgba(15,23,42,.06);
  display: flex; align-items: center; justify-content: center; }

/* 无障碍：用户开启“减弱动画”时关闭常驻微动效与位移过渡 */
@media (prefers-reduced-motion: reduce) {
  .ul-arch-dot { animation: none; opacity: 1; }
  .ul-arch-arrow { animation: none; opacity: .6; }
  .ul-arch-layer { transition: none; }
  .ul-arch-layer:hover { transform: none; }
  .ul-arch-caret { transition: none; }
  .ul-arch-drawer { transition: none; }
}