/* ===== CBU5000V210 芯片介绍页 ===== */
.cb-page{display:block}

/* —— Hero —— */
.cb-hero{background:linear-gradient(135deg,var(--blue),var(--blue-600));color:#fff;padding:74px 0 84px;position:relative;overflow:hidden}
.cb-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(640px 260px at 82% -10%,rgba(255,255,255,.16),transparent 60%);pointer-events:none}
.cb-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center;position:relative}
.cb-hero .eyebrow{color:rgba(255,255,255,.86);margin-bottom:16px}
.cb-hero h1{font-size:clamp(40px,5.4vw,68px);line-height:1.02;letter-spacing:-.03em;margin:0 0 14px;font-weight:800}
.cb-hero-sub{font-size:clamp(17px,1.5vw,21px);font-weight:600;color:rgba(255,255,255,.92);margin:0 0 18px}
.cb-hero .cb-lead{font-size:15.5px;line-height:1.75;color:rgba(255,255,255,.82);max-width:560px;margin:0 0 28px}
.cb-hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.cb-hero-cta .btn-outline{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.55)}
.cb-hero-cta .btn-outline:hover{background:rgba(255,255,255,.24)}
.cb-hero-visual{position:relative}
.cb-hero-visual::after{content:"";position:absolute;inset:-14% -10% -12% -10%;z-index:0;background:radial-gradient(circle at 50% 46%,rgba(96,170,255,.60) 0%,rgba(58,128,255,.34) 40%,rgba(40,100,255,0) 72%);filter:blur(42px);pointer-events:none}
.cb-hero-visual img{width:100%;max-width:440px;margin-left:auto;display:block;border:none;background:none;box-shadow:none;object-fit:contain;position:relative;z-index:1;filter:drop-shadow(0 0 26px rgba(96,168,255,.45)) drop-shadow(0 0 60px rgba(60,130,255,.25))}

/* —— Generic section —— */
.cb-section{padding:74px 0}
.cb-section--soft{background:var(--zone-soft)}
.cb-subhead{margin-bottom:40px}
.cb-subhead h2{font-size:clamp(26px,3vw,38px);letter-spacing:-.02em;margin:0}
.cb-body{font-size:15.5px;line-height:1.78;color:var(--ink-soft);margin:0 0 24px}

/* —— Split (text + visual) —— */
.cb-split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.cb-split--rev .cb-split-visual{order:-1}
.cb-split-visual img{width:100%;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);display:block}
.cb-split-visual img[alt*="diagram"],.cb-split-visual img[alt*="package"]{padding:14px}

/* ---------- #architecture：移动端架构框图横向滚动 ----------
   原图 876×568，窄屏被压到 ~360px 导致内部技术标签糊成一团；
   改为横向可滚动、保持可读尺寸（600px），用户左右滑动查看。 */
@media (max-width: 760px) {
  .cb-page #architecture .cb-split-visual { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .cb-page #architecture .cb-split-visual img { width: 600px; max-width: none; padding: 10px; }
}
/* 右侧雷达示意图：纯白底技术图，去掉外层边框与阴影，避免叠出双层框 */
.cb-split-visual img[alt*="radar"]{border:0;box-shadow:none}

/* —— Architecture mini grid —— */
.cb-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cb-mini{background:var(--zone-blue);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.cb-mini h4{font-size:15px;margin:0 0 6px;color:var(--blue-600);letter-spacing:-.01em}
.cb-mini p{font-size:13px;line-height:1.6;color:var(--ink-soft);margin:0}

/* —— Spec list —— */
.cb-spec{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.cb-spec li{font-size:14px;color:var(--ink);padding:14px 16px;background:var(--zone-soft);border:1px solid var(--line);border-radius:10px;line-height:1.5}

/* —— Feature / highlight cards —— */
.cb-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cb-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cb-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.3s;display:flex;flex-direction:column;gap:10px}
.cb-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--blue-100)}
.cb-ico{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:var(--blue);color:#fff;font-weight:800;font-size:14px;letter-spacing:.02em}
.cb-card h3{font-size:17px;line-height:1.3;letter-spacing:-.01em;margin:2px 0 0}
.cb-card p{font-size:13.5px;line-height:1.65;color:var(--muted);margin:0}
/* —— 功能特性 · 规格优先卡（方案 A，无序号）—— */
.cb-card-spec .cb-spec-big{font-family:ui-monospace,"SF Mono","Cascadia Mono",Consolas,Menlo,monospace;font-size:25px;font-weight:700;letter-spacing:-.02em;color:var(--blue-600);line-height:1.15;transition:color .28s ease}
.cb-card-spec h3{margin-top:14px}
.cb-card-spec:hover .cb-spec-big{color:var(--blue)}
/* —— 突出特性（一）· 左标尺线清单（方案 C，无序号；悬停蓝线自上滑入）—— */
.cb-feat-list{display:grid;grid-template-columns:repeat(3,1fr);gap:38px 34px}
.cb-feat-item{position:relative;border-left:2px solid var(--line);padding:3px 0 4px 18px}
.cb-feat-item::before{content:"";position:absolute;left:-2px;top:0;bottom:0;width:2px;background:var(--blue);transform:scaleY(0);transform-origin:top;transition:transform .3s cubic-bezier(.4,0,.2,1)}
.cb-feat-item:hover::before{transform:scaleY(1)}
.cb-feat-item h3{font-size:18px;line-height:1.3;letter-spacing:-.01em;margin:0 0 8px;color:var(--blue-600)}
.cb-feat-item p{font-size:13.5px;line-height:1.65;color:var(--muted);margin:0}

/* —— Highlights 2 rows —— */
.cb-feat-row{padding:18px 0;border-bottom:1px solid var(--line)}
.cb-feat-row:last-child{border-bottom:none;padding-bottom:0}
.cb-feat-row:first-child{padding-top:0}
.cb-feat-row h3{font-size:18px;margin:0 0 8px;color:var(--blue-600)}
.cb-feat-row p{font-size:14.5px;line-height:1.72;color:var(--ink-soft);margin:0}

/* —— CTA 收口块（对齐 applications 页面 .cta：浅蓝渐层 + 暗文 + 蓝按钮） —— */
.cta{
  position:relative; overflow:hidden;
  background:
    radial-gradient(72% 165% at 50% 128%, rgba(46,107,255,.16) 0%, transparent 68%),
    linear-gradient(180deg, #FFFFFF 0%, #EDF3FF 58%, #E6EEFF 100%);
}
.cta::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background-image:
    linear-gradient(rgba(46,107,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,107,255,.055) 1px, transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image: radial-gradient(90% 125% at 50% 0%, #000, transparent 74%);
          mask-image: radial-gradient(90% 125% at 50% 0%, #000, transparent 74%);
}
.cta .container{ position:relative; z-index:1; padding:76px 0; text-align:center }
.cta h2{ font-size:clamp(22px,3vw,34px); margin:0 0 12px; color:var(--ink); letter-spacing:-.01em; font-weight:600 }
.cta p{ font-size:16px; color:var(--body); margin:0 0 28px }
.cta .btn-row{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap }
.cta .btn{
  border-radius:999px; padding:12px 28px; text-decoration:none;
  font-size:15px; font-weight:600;
  transition:background .2s, transform .2s, box-shadow .2s;
}
.cta .btn-primary{
  background:var(--blue); color:#fff;
  box-shadow:0 8px 22px rgba(46,107,255,.26);
}
.cta .btn-primary:hover{
  background:var(--blue-600); transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(46,107,255,.34);
}
.cta .btn-outline{
  background:#fff; color:var(--blue);
  border:1.5px solid rgba(46,107,255,.45);
}
.cta .btn-outline:hover{
  background:var(--blue-50); border-color:var(--blue); transform:translateY(-2px);
}

/* —— Responsive —— */
@media(max-width:900px){
  .cb-hero-inner{grid-template-columns:1fr;gap:34px}
  .cb-hero-visual img{margin:0 auto;max-width:340px}
  .cb-split{grid-template-columns:1fr;gap:30px}
  .cb-split--rev .cb-split-visual{order:0}
  .cb-grid{grid-template-columns:repeat(2,1fr)}
  .cb-grid-3{grid-template-columns:1fr}
  .cb-feat-list{grid-template-columns:1fr;gap:26px}
}
@media(max-width:560px){
  .cb-section{padding:54px 0}
  .cb-mini-grid{grid-template-columns:1fr}
  .cb-spec{grid-template-columns:1fr}
  .cb-grid{grid-template-columns:1fr}
}

/* ===========================================================
   收口块 .app-cta —— 复用 uwb-remote.html 设计
   （两端横向收白 + 中部淡蓝光晕 + 垂直白→淡蓝→白渐变）
   =========================================================== */
.app-cta {
  position: relative; overflow: hidden;
  background:
    linear-gradient(90deg, #FFFFFF 0%, rgba(255,255,255,0) 20%, rgba(255,255,255,0) 80%, #FFFFFF 100%),
    radial-gradient(85% 78% at 50% 46%, rgba(46,107,255,.08) 0%, transparent 44%),
    linear-gradient(180deg, #FFFFFF 0%, #FFFFFF 14%, #EDF3FF 46%, #F2F7FF 74%, #FFFFFF 100%);
}
.app-cta .container {
  position: relative; z-index: 1;
  padding-top: 76px; padding-bottom: 76px;
  text-align: center;
}
.app-cta h2 {
  font-size: clamp(22px, 3vw, 34px);
  margin: 0 0 12px;
  color: var(--ink);
}
.app-cta p {
  font-size: 16px;
  color: var(--ink-soft);
  margin: 0 auto 28px;
  max-width: 560px;
}
.app-cta .btn-row {
  display: flex; gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.app-cta .btn-row .btn { padding: 12px 28px; }
.app-cta .btn-outline { border-color: rgba(46,107,255,.45); }

@media (max-width: 560px) {
  .app-cta .container { padding-top: 56px; padding-bottom: 56px; }
  .app-cta h2 { font-size: 24px; }
  .app-cta p { font-size: 15px; margin-bottom: 22px; }
}

/* ===========================================================
   GEO 增强：TL;DR 结论块 + 国产 UWB SoC 对比表
   （结论先行 / 硬指标 / 权威引用；对比表全用公开可验证事实）
   =========================================================== */
.cb-tldr{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 30px;box-shadow:var(--shadow)}
.cb-tldr-lead{font-size:16px;line-height:1.8;color:var(--ink);margin:0 0 22px}
.cb-tldr-lead strong{color:var(--blue-600)}
.cb-tldr-stats{list-style:none;padding:0;margin:0 0 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cb-tldr-stats li{display:flex;flex-direction:column;gap:4px;padding:16px;border-radius:12px;background:var(--zone-soft);border:1px solid var(--line)}
.cb-tldr-stats .num{font-size:22px;font-weight:800;color:var(--blue);letter-spacing:-.02em;line-height:1.1}
.cb-tldr-stats .lbl{font-size:12.5px;color:var(--muted);line-height:1.4}
.cb-tldr-cite{font-size:13px;line-height:1.65;color:var(--muted);margin:0;padding-top:16px;border-top:1px dashed var(--line)}
.cb-tldr-cite a{color:var(--blue);text-decoration:none}
.cb-tldr-cite a:hover{text-decoration:underline}

@media(max-width:760px){
  .cb-tldr-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .cb-tldr{padding:20px}
  .cb-tldr-stats{grid-template-columns:1fr 1fr}
}

/* ===== 卡片入场动效（淡入上移 + 同批错峰，零依赖，配 js/reveal.js；cb-page 家族共用） =====
 * 仅在 html.js-reveal（脚本成功 armed）后才隐藏，无 JS / 减少动效时内容照常显示。
 * 动画结束回到自然态（fill: backwards），不残留 transform，不影响卡片 hover 位移。 */
.js-reveal [data-reveal]:not(.rv-in) {
  opacity: 0;
  transform: translateY(18px);
}
.js-reveal [data-reveal].rv-in {
  animation: cb-reveal-up 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) backwards;
  animation-delay: var(--rv-delay, 0ms);
}
@keyframes cb-reveal-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .js-reveal [data-reveal]:not(.rv-in) { opacity: 1; transform: none; }
}