/* CADASU 自架首頁 — 比照線上 cadasu.com 版型重建 */
:root{
  --cd-blue:#2b51e0;
  --cd-blue-deep:#1f2f8f;
  --cd-orange:#f08a24;
  --cd-ink:#1a2233;
  --cd-gray:#5d6677;
  --cd-line:#e6e9f0;
  --cd-bg-soft:#eef3ff;
  --cd-bg-gray:#eef0f3;
  --cd-radius:14px;
  --cd-container:1140px;
}
*{box-sizing:border-box;}
body{
  margin:0;
  font-family:"Noto Sans TC","Helvetica Neue",Arial,sans-serif;
  color:var(--cd-ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
.cd-container{max-width:var(--cd-container);margin:0 auto;padding:0 24px;}

/* Buttons */
.cd-btn{display:inline-flex;align-items:center;gap:8px;border-radius:999px;font-weight:700;
  padding:11px 26px;font-size:15px;transition:.2s;cursor:pointer;white-space:nowrap;}
.cd-btn-primary{background:var(--cd-blue);color:#fff;}
.cd-btn-primary:hover{background:var(--cd-blue-deep);}
.cd-btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.5);}
.cd-header .cd-btn-ghost{background:var(--cd-blue);border:none;color:#fff;}
.cd-header .cd-btn-ghost:hover{background:var(--cd-blue-deep);}
.cd-btn-ghost-dark{background:transparent;color:var(--cd-blue);border:1.5px solid var(--cd-blue);}
.cd-btn-ghost-dark:hover{background:var(--cd-blue);color:#fff;}

/* Header */
.cd-header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(8px);transition:box-shadow .2s;}
.cd-header.cd-scrolled{box-shadow:0 2px 18px rgba(20,30,60,.08);}
.cd-header-inner{display:flex;align-items:center;justify-content:space-between;height:66px;}
.cd-logo img{height:30px;width:auto;}
.cd-nav{display:flex;align-items:center;gap:26px;}
.cd-nav>a{font-size:15px;font-weight:500;color:var(--cd-ink);transition:color .15s;}
.cd-nav>a:hover{color:var(--cd-blue);}
.cd-lang{position:relative;font-size:14px;color:var(--cd-gray);cursor:pointer;user-select:none;}
.cd-lang i{font-size:11px;transition:transform .2s;}
.cd-lang.open i{transform:rotate(180deg);}
.cd-lang-menu{position:absolute;top:130%;left:50%;transform:translateX(-50%) translateY(-6px);
  background:#fff;border:1px solid var(--cd-line);border-radius:10px;padding:6px;
  box-shadow:0 10px 28px rgba(20,30,60,.14);min-width:120px;display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transition:.18s;z-index:60;}
.cd-lang.open .cd-lang-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.cd-lang-menu a{padding:8px 14px;border-radius:7px;color:var(--cd-ink);font-weight:500;}
.cd-lang-menu a:hover{background:var(--cd-bg-soft);color:var(--cd-blue);}
.cd-burger{display:none;background:none;border:none;flex-direction:column;gap:5px;cursor:pointer;}
.cd-burger span{width:24px;height:2px;background:var(--cd-ink);display:block;}

/* Hero */
.cd-hero{position:relative;overflow:hidden;color:#fff;
  background:linear-gradient(135deg,#2b51e0 0%,#2540b8 55%,#1c2c82 100%);
  padding:150px 0 120px;text-align:center;}
.cd-hero-grid{position:absolute;inset:0;opacity:.18;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.4) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(ellipse at 50% 40%,#000 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 0%,transparent 75%);}
.cd-hero-inner{position:relative;}
.cd-hero-eyebrow{font-size:17px;letter-spacing:.12em;opacity:.92;margin:0 0 18px;font-weight:500;}
.cd-hero-title{font-size:54px;font-weight:900;line-height:1.28;margin:0 0 34px;letter-spacing:.01em;}
.cd-hero-cta{font-size:16px;padding:14px 40px;box-shadow:0 12px 30px rgba(0,0,0,.18);}

.cd-ai-hero{background:
  radial-gradient(circle at 18% 20%,rgba(255,210,122,.22) 0,transparent 26%),
  radial-gradient(circle at 82% 24%,rgba(34,160,107,.22) 0,transparent 24%),
  linear-gradient(135deg,#1e40af 0%,#273a96 52%,#101827 100%);
  padding:148px 0 104px;}
.cd-ai-hero .cd-hero-title{max-width:930px;margin-left:auto;margin-right:auto;margin-bottom:20px;}
.cd-hero-position{font-size:24px;font-weight:900;color:#ffd27a;margin:0 0 18px;}
.cd-hero-actions{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;margin-top:30px;}
.cd-hero-cta-secondary{box-shadow:none;}

/* Generic section */
.cd-section{padding:84px 0;}
.cd-section-tight{padding:70px 0 10px;}
.cd-h2{font-size:32px;font-weight:900;text-align:center;margin:0 0 50px;letter-spacing:.01em;}
.cd-h2-sm{font-size:24px;margin-bottom:36px;color:var(--cd-gray);font-weight:700;}
.cd-sub{text-align:center;color:var(--cd-gray);margin:-32px auto 48px;max-width:640px;}
.cd-section-kicker{color:var(--cd-orange);font-size:13px;font-weight:900;letter-spacing:.14em;text-transform:uppercase;margin:0 0 12px;}
.cd-section-kicker.cd-center{text-align:center;}
.cd-lead{color:#334155;font-size:18px;line-height:1.9;margin:0;}
.cd-split{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:center;}
.cd-split-copy .cd-h2{margin-bottom:20px;}

/* Why CADASU */
.cd-why{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center;}
.cd-why-visual img{width:100%;filter:drop-shadow(0 24px 40px rgba(30,45,90,.16));}
.cd-why-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:30px;}
.cd-why-list li{display:flex;gap:18px;align-items:flex-start;}
.cd-why-ico{flex:0 0 auto;width:48px;height:48px;border-radius:12px;background:var(--cd-bg-soft);
  color:var(--cd-blue);display:flex;align-items:center;justify-content:center;font-size:20px;}
.cd-why-list h4{margin:2px 0 6px;font-size:19px;font-weight:700;}
.cd-why-list p{margin:0;color:var(--cd-gray);font-size:15px;}

/* Feature rows */
.cd-feature{padding:46px 0;}
.cd-feature-alt{background:var(--cd-bg-soft);}
.cd-feature-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.cd-feature-text h3{font-size:26px;font-weight:800;margin:0 0 16px;}
.cd-feature-text p{color:var(--cd-gray);margin:0 0 20px;}
.cd-feature-img img{width:100%;border-radius:var(--cd-radius);
  box-shadow:0 20px 44px rgba(30,45,90,.14);border:1px solid var(--cd-line);}
.cd-link{color:var(--cd-blue);font-weight:700;font-size:15px;}
.cd-link i{font-size:12px;transition:transform .2s;}
.cd-link:hover i{transform:translateX(4px);}

/* AI partner cards */
.cd-partner-ai{background:var(--cd-bg-soft);}
.cd-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.cd-card{background:#fff;border-radius:var(--cd-radius);padding:30px 24px;text-align:center;
  box-shadow:0 8px 26px rgba(30,45,90,.07);transition:transform .2s,box-shadow .2s;}
.cd-card:hover{transform:translateY(-5px);box-shadow:0 16px 36px rgba(30,45,90,.13);}
.cd-card-ico{display:inline-flex;width:58px;height:58px;border-radius:50%;background:var(--cd-blue);
  color:#fff;align-items:center;justify-content:center;font-size:23px;margin-bottom:16px;}
.cd-card h4{margin:0 0 10px;font-size:19px;font-weight:800;}
.cd-card p{margin:0;color:var(--cd-gray);font-size:14px;}

/* Partners */
.cd-partners{background:var(--cd-bg-gray);padding:54px 0;}
.cd-partner-logos{display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap;}
.cd-partner-logos img{width:auto;object-fit:contain;filter:grayscale(.1);opacity:.92;}
.cd-partner-logos img[alt="Wistron"]{height:45px;}
.cd-partner-logos img[alt*="NVIDIA"]{height:87px;}
.cd-partner-logos img[alt="wiAdvance"]{height:34px;}
.cd-partner-logos img[alt="AppWorks"]{height:50px;}

/* Testimonial */
.cd-testi-row{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:center;}
.cd-h2-left{text-align:left;font-size:30px;margin-bottom:26px;line-height:1.4;}
.cd-testi-card{position:relative;background:#fff;border:1px solid var(--cd-line);border-radius:18px;
  padding:42px 40px;box-shadow:0 18px 44px rgba(30,45,90,.10);}
.cd-quote-mark{color:var(--cd-blue);font-size:30px;opacity:.25;margin-bottom:14px;}
.cd-quote{font-size:21px;font-weight:500;line-height:1.7;margin:0 0 18px;}
.cd-quote-who{margin:0;color:var(--cd-gray);font-weight:700;}

/* Footer */
.cd-footer{background:#0f1626;color:#aeb6c4;padding:72px 0 0;border-top:1px solid rgba(255,255,255,.08);}
.cd-footer-inner{display:grid;grid-template-columns:1.1fr 1.05fr .85fr 1.05fr;gap:40px;}
.cd-footer-brand img{height:30px;margin-bottom:22px;}
.cd-footer-col h3{color:#fff;font-size:15px;font-weight:800;margin:0 0 12px;}
.cd-footer-col p{margin:0 0 12px;font-size:14px;}
.cd-footer a{color:#aeb6c4;}
.cd-footer a:hover{color:#fff;}
.cd-footer-social{display:flex;gap:16px;font-size:20px;margin-top:6px;}
.cd-copyright{border-top:1px solid #1f2a3e;margin-top:46px;padding:20px 0;text-align:center;
  font-size:13px;color:#7d8696;}

/* ===== Inner pages ===== */
.cd-page-hero{background:linear-gradient(135deg,#2b51e0 0%,#2540b8 60%,#1c2c82 100%);
  color:#fff;text-align:center;padding:130px 0 64px;position:relative;overflow:hidden;}
.cd-page-hero .cd-hero-grid{opacity:.16;}
.cd-page-hero h1{font-size:40px;font-weight:900;margin:0 0 14px;position:relative;}
.cd-page-hero p{font-size:17px;opacity:.92;margin:0 auto;max-width:680px;position:relative;}
.cd-page-hero .cd-page-kicker{margin:0 0 10px;color:#ffd27a;font-size:14px;font-weight:900;letter-spacing:.16em;opacity:1;}
.cd-page{padding:72px 0;}

/* feature list (功能介紹) */
.cd-flist{display:flex;flex-direction:column;gap:20px;max-width:900px;margin:0 auto;}
.cd-fitem{display:flex;gap:22px;align-items:flex-start;background:#fff;border:1px solid var(--cd-line);
  border-radius:var(--cd-radius);padding:28px 30px;box-shadow:0 6px 22px rgba(30,45,90,.05);}
.cd-fitem .cd-why-ico{width:54px;height:54px;font-size:22px;}
.cd-fitem h3{margin:0 0 8px;font-size:21px;font-weight:800;}
.cd-fitem p{margin:0;color:var(--cd-gray);}

.cd-feature-index-section{padding:34px 0;background:#fff;border-bottom:1px solid var(--cd-line);}
.cd-feature-tabs{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;}
.cd-feature-tabs a{display:inline-flex;align-items:center;min-height:42px;padding:9px 18px;border:1px solid var(--cd-line);
  border-radius:999px;color:#334155;font-size:14px;font-weight:800;background:#fff;box-shadow:0 6px 18px rgba(30,45,90,.04);}
.cd-feature-tabs a:hover{border-color:var(--cd-blue);color:var(--cd-blue);background:var(--cd-bg-soft);}
.cd-feature-detail{padding:82px 0;background:#fff;}
.cd-feature-detail-alt{background:#f8fafc;}
.cd-feature-detail-row{display:grid;grid-template-columns:.92fr 1.08fr;gap:54px;align-items:center;}
.cd-feature-detail:nth-of-type(even) .cd-feature-detail-copy{order:2;}
.cd-feature-detail:nth-of-type(even) .cd-feature-detail-image{order:1;}
.cd-feature-num{display:inline-flex;color:var(--cd-orange);font-size:13px;font-weight:900;letter-spacing:.14em;margin-bottom:12px;}
.cd-feature-detail-copy h2{font-size:32px;line-height:1.35;font-weight:900;margin:0 0 16px;}
.cd-feature-detail-copy p{font-size:17px;line-height:1.9;color:#334155;margin:0 0 22px;}
.cd-feature-bullets{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.cd-feature-bullets li{position:relative;padding-left:26px;color:var(--cd-gray);font-size:15.5px;line-height:1.7;}
.cd-feature-bullets li:before{content:"";position:absolute;left:0;top:.72em;width:9px;height:9px;border-radius:50%;background:var(--cd-blue);
  box-shadow:0 0 0 5px rgba(43,81,224,.11);}
.cd-feature-detail-image{background:#fff;border:1px solid var(--cd-line);border-radius:12px;padding:12px;
  box-shadow:0 24px 64px rgba(30,45,90,.12);}
.cd-feature-detail-image img{width:100%;border-radius:8px;}
.cd-feature-image-stack{display:grid;gap:18px;}
.cd-feature-detail-image-compact{max-width:92%;justify-self:end;}
.cd-feature-detail-image-small{max-width:70%;justify-self:end;}
.cd-feature-gallery{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;}
.cd-feature-gallery .cd-feature-detail-image{box-shadow:0 16px 42px rgba(30,45,90,.10);}
.cd-feature-gallery .cd-feature-detail-image:first-child{grid-column:1 / -1;}
.cd-feature-gallery .cd-feature-detail-image-small{max-width:none;}
.cd-feature-ai-card img{object-fit:cover;max-height:430px;}
.cd-feature-mini-grid{display:grid;grid-template-columns:1fr;gap:12px;margin-top:8px;}
.cd-feature-mini-grid div{border:1px solid var(--cd-line);border-radius:10px;background:#fff;padding:16px 18px;}
.cd-feature-mini-grid strong{display:block;font-size:16px;font-weight:900;color:var(--cd-ink);margin-bottom:4px;}
.cd-feature-mini-grid span{display:block;color:var(--cd-gray);font-size:14.5px;line-height:1.65;}

/* case studies */
.cd-cases{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cd-case{background:#fff;border:1px solid var(--cd-line);border-radius:var(--cd-radius);
  padding:30px 30px;box-shadow:0 6px 22px rgba(30,45,90,.05);transition:transform .2s,box-shadow .2s;}
.cd-case:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(30,45,90,.12);}
.cd-case-tag{display:inline-block;background:var(--cd-bg-soft);color:var(--cd-blue);
  font-size:13px;font-weight:700;border-radius:6px;padding:3px 12px;margin-bottom:14px;}
.cd-case h3{margin:0 0 10px;font-size:20px;font-weight:800;}
.cd-case-metric{color:var(--cd-blue);font-weight:800;font-size:17px;margin:0 0 10px;}
.cd-case p{margin:0;color:var(--cd-gray);font-size:15px;}

/* press / blog list */
.cd-posts{display:flex;flex-direction:column;gap:18px;max-width:860px;margin:0 auto;}
.cd-post{display:block;background:#fff;border:1px solid var(--cd-line);border-radius:var(--cd-radius);
  padding:26px 30px;box-shadow:0 6px 22px rgba(30,45,90,.05);transition:transform .2s,box-shadow .2s;}
.cd-post:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(30,45,90,.11);}
.cd-post-meta{color:var(--cd-blue);font-weight:700;font-size:13px;margin:0 0 8px;}
.cd-post h3{margin:0;font-size:19px;font-weight:700;line-height:1.5;}

/* contact */
.cd-contact{display:grid;grid-template-columns:1fr;gap:28px;max-width:960px;margin:0 auto;align-items:start;}
.cd-form .cd-field{margin-bottom:18px;}
.cd-form label,.cd-form legend{display:block;margin:0 0 9px;color:#111827;font-size:15px;font-weight:600;}
.cd-form label span,.cd-form legend span{color:var(--cd-blue);}
.cd-form input:not([type="checkbox"]),.cd-form select,.cd-form textarea{width:100%;border:1px solid #8a8f98;
  border-radius:0;padding:12px 14px;font-size:15px;font-family:inherit;background:#fff;}
.cd-form input:not([type="checkbox"]):focus,.cd-form select:focus,.cd-form textarea:focus{outline:none;border-color:var(--cd-blue);box-shadow:0 0 0 3px rgba(47,93,255,.12);}
.cd-form button{border:none;width:100%;justify-content:center;font-size:16px;margin-top:6px;}
.cd-check-field{border:0;padding:0;margin:0 0 20px;}
.cd-check-field legend{margin-bottom:12px;}
.cd-check-field label{display:flex;align-items:flex-start;gap:12px;margin:0;font-weight:500;line-height:1.5;}
.cd-check-field input{width:16px;height:16px;flex:0 0 16px;margin-top:3px;accent-color:var(--cd-blue);}
.cd-check-field{display:grid;grid-template-columns:1fr 1fr;column-gap:36px;row-gap:12px;}
.cd-contact-info{background:var(--cd-bg-soft);border-radius:var(--cd-radius);padding:28px 30px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 28px;}
.cd-contact-info h3{grid-column:1/-1;margin:0 0 8px;font-size:19px;}
.cd-contact-info p{margin:0 0 14px;color:var(--cd-gray);display:flex;gap:12px;align-items:flex-start;}
.cd-contact-info i{color:var(--cd-blue);margin-top:4px;}

/* blog article */
.cd-article{max-width:760px;margin:0 auto;}
.cd-article .cd-article-meta{color:var(--cd-blue);font-weight:700;font-size:14px;margin-bottom:10px;}
.cd-article h1{font-size:32px;font-weight:900;line-height:1.5;margin:0 0 30px;}
.cd-article h2{font-size:23px;font-weight:800;margin:38px 0 14px;}
.cd-article p{color:#374050;margin:0 0 18px;font-size:16.5px;line-height:1.95;}
.cd-article li{color:#374050;margin:0 0 10px;font-size:16.5px;line-height:1.9;}
.cd-article ul{padding-left:22px;margin:0 0 18px;}
.cd-article-back{display:inline-block;margin-bottom:26px;color:var(--cd-gray);font-weight:600;}
.cd-article-back:hover{color:var(--cd-blue);}
.cd-article-cta{margin-top:46px;padding-top:34px;border-top:1px solid var(--cd-line);text-align:center;}

/* ===== Hero subtitle（新定位副標）===== */
.cd-hero-sub{font-size:19px;line-height:1.7;opacity:.92;max-width:760px;margin:0 auto 34px;}
.cd-hero-accent{color:#ffd27a;}

/* ===== Hero 動態輪播副標（AI 幫你 ___）===== */
.cd-hero-rotate{font-size:24px;font-weight:800;margin:0 0 22px;display:flex;
  gap:10px;justify-content:center;align-items:center;flex-wrap:wrap;}
.cd-rotate-prefix{opacity:.92;}
.cd-rotate-wrap{position:relative;display:inline-block;min-width:10ch;height:1.6em;
  text-align:left;vertical-align:bottom;}
.cd-rotate-word{position:absolute;left:0;top:0;white-space:nowrap;color:#ffd27a;
  opacity:0;animation:cdRotate 18s linear infinite;}
.cd-rotate-word:nth-child(1){animation-delay:0s;}
.cd-rotate-word:nth-child(2){animation-delay:3s;}
.cd-rotate-word:nth-child(3){animation-delay:6s;}
.cd-rotate-word:nth-child(4){animation-delay:9s;}
.cd-rotate-word:nth-child(5){animation-delay:12s;}
.cd-rotate-word:nth-child(6){animation-delay:15s;}
@keyframes cdRotate{
  0%{opacity:0;transform:translateY(14px);}
  3%{opacity:1;transform:translateY(0);}
  14%{opacity:1;transform:translateY(0);}
  17%{opacity:0;transform:translateY(-14px);}
  100%{opacity:0;transform:translateY(-14px);}
}
@media(prefers-reduced-motion:reduce){
  .cd-rotate-word{animation:none;}
  .cd-rotate-word:nth-child(1){opacity:1;}
}

/* ===== 看 AI 表演（示範區）===== */
.cd-demo-section{background:var(--cd-bg-soft);}
.cd-demo{display:grid;grid-template-columns:1fr auto 1.2fr;gap:30px;align-items:center;
  max-width:1000px;margin:0 auto;}
.cd-demo-input{position:relative;background:#fff;border-radius:var(--cd-radius);padding:14px;
  box-shadow:0 16px 40px rgba(30,45,90,.14);border:1px solid var(--cd-line);}
.cd-demo-input img{width:100%;border-radius:8px;display:block;}
.cd-demo-input-tag{position:absolute;left:22px;top:22px;background:var(--cd-blue);color:#fff;
  font-size:12px;font-weight:700;border-radius:6px;padding:5px 10px;display:none;}
.cd-demo-arrow{color:var(--cd-blue);font-size:30px;text-align:center;}
.cd-demo-outputs{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.cd-demo-out{background:#fff;border-radius:12px;padding:16px 16px;border:1px solid var(--cd-line);
  box-shadow:0 6px 18px rgba(30,45,90,.06);display:flex;gap:12px;align-items:flex-start;
  opacity:0;transform:translateY(12px);animation:cdPop .5s ease forwards;}
.cd-demo-out:nth-child(1){animation-delay:.05s;} .cd-demo-out:nth-child(2){animation-delay:.15s;}
.cd-demo-out:nth-child(3){animation-delay:.25s;} .cd-demo-out:nth-child(4){animation-delay:.35s;}
.cd-demo-out:nth-child(5){animation-delay:.45s;} .cd-demo-out:nth-child(6){animation-delay:.55s;}
@keyframes cdPop{to{opacity:1;transform:translateY(0);}}
.cd-demo-ico{flex:0 0 auto;width:38px;height:38px;border-radius:9px;background:var(--cd-bg-soft);
  color:var(--cd-blue);display:flex;align-items:center;justify-content:center;font-size:16px;}
.cd-demo-out-title{display:block;font-weight:700;font-size:15px;}
.cd-demo-out-desc{display:block;color:var(--cd-gray);font-size:13px;line-height:1.5;margin-top:2px;}
.cd-demo-note{text-align:center;color:var(--cd-gray);font-size:13px;margin-top:26px;}

/* ===== 以前 vs 現在（對比表）===== */
.cd-ba{max-width:920px;margin:0 auto;border:1px solid var(--cd-line);border-radius:var(--cd-radius);
  overflow:hidden;background:#fff;}
.cd-ba-head,.cd-ba-row{display:grid;grid-template-columns:96px 1fr 1fr;}
.cd-ba-head{background:var(--cd-bg-gray);font-weight:800;font-size:14px;}
.cd-ba-head span{padding:14px 18px;}
.cd-ba-old-h{color:var(--cd-gray);} .cd-ba-new-h{color:var(--cd-blue);}
.cd-ba-row{border-top:1px solid var(--cd-line);}
.cd-ba-row span{padding:16px 18px;font-size:14.5px;line-height:1.6;}
.cd-ba-label{font-weight:800;color:var(--cd-ink);background:var(--cd-bg-soft);display:flex;align-items:center;}
.cd-ba-old{color:var(--cd-gray);} .cd-ba-new{color:var(--cd-ink);background:rgba(43,81,224,.04);}
.cd-ba-old i{color:#c2c8d2;margin-right:8px;} .cd-ba-new i{color:#22a06b;margin-right:8px;}

/* ===== Benefits 三柱（cd-cards 的 3 欄變體）===== */
.cd-cards-3{grid-template-columns:repeat(3,1fr);}

/* ===== One CAD drawing → Two AI Work Packages（雙角色並排）===== */
.cd-roles{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.cd-role{background:#fff;border-radius:var(--cd-radius);padding:30px 30px;
  box-shadow:0 8px 26px rgba(30,45,90,.07);border-top:4px solid var(--cd-blue);}
.cd-role-supplier{border-top-color:var(--cd-orange,#f08a24);}
.cd-role-label{margin:0 0 18px;font-size:20px;font-weight:800;text-align:center;
  padding-bottom:14px;border-bottom:1px solid var(--cd-line);}
.cd-role-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;}
.cd-role-list li{display:flex;flex-direction:column;gap:2px;}
.cd-role-name{font-weight:700;color:var(--cd-ink);font-size:15.5px;}
.cd-role-desc{color:var(--cd-gray);font-size:14px;line-height:1.6;}

/* ===== 成績 / 數據帶 ===== */
.cd-stats{background:linear-gradient(135deg,var(--cd-blue) 0%,var(--cd-blue-deep) 100%);
  color:#fff;padding:64px 0;text-align:center;}
.cd-stats-title{font-size:28px;font-weight:900;margin:0 0 40px;}
.cd-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:920px;margin:0 auto;}
.cd-stat{display:flex;flex-direction:column;gap:6px;}
.cd-stat-value{font-size:38px;font-weight:900;line-height:1.1;}
.cd-stat-label{font-size:14px;opacity:.85;}
.cd-stats-note{margin:38px auto 0;max-width:760px;font-size:15px;opacity:.9;line-height:1.7;}

/* ===== 角色互動 tab（純 CSS radio:checked 切換）===== */
.cd-personas-section{background:var(--cd-bg-soft);}
.cd-personas{max-width:980px;margin:0 auto;}
.cd-persona-radio{position:absolute;opacity:0;pointer-events:none;}
.cd-persona-tabs{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:28px;}
.cd-persona-tab{display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  background:#fff;border:1px solid var(--cd-line);border-radius:999px;
  padding:11px 24px;font-weight:700;font-size:15.5px;color:var(--cd-gray);transition:.18s;}
.cd-persona-tab i{font-size:15px;}
.cd-persona-tab:hover{border-color:var(--cd-blue);color:var(--cd-blue);}
/* 預設隱藏所有 panel */
.cd-persona-panel{display:none;}
/* 每個 radio 被選中時：對應 tab 反白 + 對應 panel 顯示 */
#cd-p0:checked ~ .cd-persona-tabs label[for="cd-p0"],
#cd-p1:checked ~ .cd-persona-tabs label[for="cd-p1"],
#cd-p2:checked ~ .cd-persona-tabs label[for="cd-p2"],
#cd-p3:checked ~ .cd-persona-tabs label[for="cd-p3"]{
  background:var(--cd-blue);border-color:var(--cd-blue);color:#fff;}
#cd-p0:checked ~ .cd-panel-p0,
#cd-p1:checked ~ .cd-panel-p1,
#cd-p2:checked ~ .cd-panel-p2,
#cd-p3:checked ~ .cd-panel-p3{display:block;animation:cdFade .35s ease;}
@keyframes cdFade{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.cd-persona-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.cd-persona-item{display:flex;gap:14px;align-items:flex-start;background:#fff;
  border:1px solid var(--cd-line);border-radius:12px;padding:18px 20px;
  box-shadow:0 6px 18px rgba(30,45,90,.05);}
.cd-persona-item.is-soon{background:#fbfbfd;border-style:dashed;}
.cd-persona-check{flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:13px;
  background:rgba(34,160,107,.12);color:#22a06b;}
.cd-persona-item.is-soon .cd-persona-check{background:var(--cd-bg-soft);color:var(--cd-blue);}
.cd-persona-name{display:block;font-weight:700;font-size:15.5px;color:var(--cd-ink);}
.cd-persona-desc{display:block;color:var(--cd-gray);font-size:13.5px;line-height:1.6;margin-top:3px;}
.cd-soon{display:inline-block;margin-left:8px;background:var(--cd-orange);color:#fff;
  font-size:11px;font-weight:700;border-radius:5px;padding:1px 8px;vertical-align:middle;}

/* ===== AI-first homepage ===== */
.cd-ai-hero{
  text-align:left;
  background:
    radial-gradient(circle at 18% 18%,rgba(240,138,36,.26) 0,transparent 28%),
    radial-gradient(circle at 78% 24%,rgba(34,160,107,.22) 0,transparent 26%),
    linear-gradient(135deg,#08111f 0%,#13294b 48%,#101827 100%);
  padding:126px 0 78px;
}
.cd-ai-hero .cd-hero-grid{opacity:.12;mask-image:radial-gradient(ellipse at 54% 36%,#000 0%,transparent 74%);
  -webkit-mask-image:radial-gradient(ellipse at 54% 36%,#000 0%,transparent 74%);}
.cd-hero-layout{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(380px,.98fr);gap:54px;align-items:center;}
.cd-ai-hero .cd-hero-title{max-width:620px;margin:0 0 18px;font-size:52px;line-height:1.16;letter-spacing:0;}
.cd-ai-hero .cd-hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 18px;padding:7px 12px;
  border:1px solid rgba(255,255,255,.18);border-radius:999px;background:rgba(255,255,255,.08);
  font-size:13px;font-weight:900;letter-spacing:.08em;color:#dbeafe;opacity:1;}
.cd-ai-hero .cd-hero-eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:#22a06b;
  box-shadow:0 0 0 5px rgba(34,160,107,.16);}
.cd-hero-position{font-size:21px;font-weight:900;color:#f8fafc;margin:0 0 12px;line-height:1.45;}
.cd-ai-hero .cd-hero-rotate{justify-content:flex-start;font-size:23px;margin:0 0 12px;}
.cd-ai-hero .cd-rotate-wrap{min-width:7ch;}
.cd-ai-hero .cd-hero-sub{font-size:18px;line-height:1.7;max-width:560px;margin:2px 0 0;color:#cbd5e1;opacity:1;}
.cd-ai-hero .cd-hero-actions{justify-content:flex-start;margin-top:28px;}
.cd-ai-hero .cd-btn-primary{background:#fff;color:#101827;}
.cd-ai-hero .cd-btn-primary:hover{background:#ffd27a;color:#101827;}
.cd-ai-hero .cd-hero-cta{box-shadow:0 18px 42px rgba(43,81,224,.35);}
.cd-hero-proof{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;max-width:620px;}
.cd-hero-proof span{display:inline-flex;align-items:center;min-height:32px;border:1px solid rgba(255,255,255,.16);
  border-radius:999px;background:rgba(255,255,255,.08);color:#e2e8f0;padding:6px 12px;font-size:13px;font-weight:800;}

.cd-ai-console{position:relative;border:1px solid rgba(255,255,255,.16);border-radius:18px;overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(248,250,252,.92));
  box-shadow:0 34px 88px rgba(0,0,0,.32);}
.cd-ai-console:before{content:"";position:absolute;inset:-1px;border-radius:18px;pointer-events:none;
  background:linear-gradient(135deg,rgba(255,255,255,.32),transparent 34%,rgba(240,138,36,.24));}
.cd-console-top{position:relative;display:flex;align-items:center;gap:12px;height:46px;padding:0 16px;
  border-bottom:1px solid #e5e7eb;color:#334155;font-size:13px;font-weight:900;}
.cd-console-dots{display:flex;gap:6px;}
.cd-console-dots i{width:9px;height:9px;border-radius:50%;background:#cbd5e1;}
.cd-console-dots i:nth-child(1){background:#ef4444;}
.cd-console-dots i:nth-child(2){background:#f59e0b;}
.cd-console-dots i:nth-child(3){background:#22a06b;}
.cd-console-body{position:relative;display:grid;grid-template-columns:1fr;gap:16px;padding:18px;}
.cd-console-drawing{position:relative;border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;background:#fff;
  min-height:268px;display:flex;align-items:center;justify-content:center;}
.cd-console-drawing img{width:100%;height:100%;object-fit:cover;filter:contrast(1.04) saturate(.9);}
.cd-scan-line{position:absolute;left:0;right:0;top:26%;height:2px;background:linear-gradient(90deg,transparent,#22a06b,transparent);
  box-shadow:0 0 24px rgba(34,160,107,.9);animation:cdScan 3.2s ease-in-out infinite;}
.cd-console-badge{position:absolute;left:14px;top:14px;border-radius:999px;background:#101827;color:#fff;
  padding:6px 11px;font-size:12px;font-weight:900;}
.cd-console-panel{display:grid;gap:9px;}
.cd-console-status{display:flex;align-items:center;gap:8px;border-radius:10px;background:#ecfdf5;color:#166534;
  padding:11px 12px;font-size:13px;font-weight:900;}
.cd-console-row{display:flex;align-items:center;justify-content:space-between;gap:14px;border:1px solid #e5e7eb;
  border-radius:10px;background:#fff;padding:11px 12px;color:#475569;font-size:13px;font-weight:800;}
.cd-console-row strong{color:#101827;font-size:16px;}
.cd-console-answer{border-left:3px solid var(--cd-orange);background:#fff7ed;border-radius:0 10px 10px 0;
  padding:12px 13px;color:#7c2d12;font-size:13px;line-height:1.65;font-weight:800;}
@keyframes cdScan{
  0%,100%{top:18%;opacity:.35;}
  50%{top:76%;opacity:1;}
}

.cd-why-now{background:#fff;}
.cd-ai-pain-grid{display:grid;grid-template-columns:1fr;gap:16px;}
.cd-ai-pain{background:#fff;border:1px solid #e6e9f0;border-radius:10px;padding:22px 24px;
  display:grid;grid-template-columns:46px 1fr;column-gap:16px;align-items:start;box-shadow:0 12px 34px rgba(30,45,90,.06);}
.cd-ai-pain i{grid-row:1 / span 2;width:46px;height:46px;border-radius:10px;background:#eef3ff;color:var(--cd-blue);
  display:flex;align-items:center;justify-content:center;font-size:19px;}
.cd-ai-pain h3{font-size:18px;line-height:1.4;margin:0 0 6px;font-weight:900;}
.cd-ai-pain p{color:#64748b;font-size:14.5px;line-height:1.65;margin:0;}

.cd-magic{background:linear-gradient(180deg,#f8fafc 0%,#eef3ff 100%);}
.cd-magic-map{display:grid;grid-template-columns:.82fr 1.18fr;gap:34px;align-items:center;}
.cd-magic-drawing{position:relative;background:#fff;border:1px solid var(--cd-line);border-radius:10px;padding:16px;
  box-shadow:0 22px 54px rgba(30,45,90,.12);}
.cd-magic-drawing img{border-radius:9px;border:1px solid #edf0f5;}
.cd-magic-drawing span{position:absolute;left:28px;bottom:28px;background:#101827;color:#fff;border-radius:999px;
  padding:7px 14px;font-size:13px;font-weight:900;box-shadow:0 10px 26px rgba(16,24,39,.25);}
.cd-magic-nodes{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.cd-magic-node{background:#fff;border:1px solid var(--cd-line);border-radius:10px;padding:17px 17px;
  display:flex;gap:14px;align-items:flex-start;box-shadow:0 8px 24px rgba(30,45,90,.06);}
.cd-magic-node i{flex:0 0 auto;width:38px;height:38px;border-radius:9px;background:#fff7ed;color:var(--cd-orange);
  display:flex;align-items:center;justify-content:center;font-size:17px;}
.cd-magic-node h3{margin:0 0 5px;font-size:16px;font-weight:900;}
.cd-magic-node p{margin:0;color:var(--cd-gray);font-size:13.5px;line-height:1.6;}

.cd-ai-roles{background:#fff;}
.cd-ai-role-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.cd-ai-role-card{background:#fff;border:1px solid var(--cd-line);border-radius:10px;padding:22px 18px;
  min-height:202px;display:flex;flex-direction:column;box-shadow:0 8px 24px rgba(30,45,90,.06);}
.cd-ai-role-icon{width:48px;height:48px;border-radius:10px;background:#eef3ff;color:var(--cd-blue);
  display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:18px;}
.cd-ai-role-card p{margin:0 0 8px;color:var(--cd-orange);font-weight:900;font-size:13px;}
.cd-ai-role-card h3{margin:0 0 10px;font-size:18px;line-height:1.35;font-weight:900;}
.cd-ai-role-card span:last-child{color:var(--cd-gray);font-size:13.5px;line-height:1.65;}
.cd-ai-proof{background:
  radial-gradient(circle at 18% 28%,rgba(240,138,36,.18) 0,transparent 26%),
  linear-gradient(135deg,#111827 0%,#1e293b 100%);}
.cd-ai-proof .cd-section-kicker{color:#ffd27a;}
.cd-ba-section{background:#fff;}

.cd-faq-section{background:#f8fafc;}
.cd-faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px;}
.cd-faq{background:#fff;border:1px solid var(--cd-line);border-radius:10px;box-shadow:0 8px 24px rgba(30,45,90,.05);
  overflow:hidden;}
.cd-faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:16px;font-weight:900;line-height:1.5;}
.cd-faq summary::-webkit-details-marker{display:none;}
.cd-faq summary i{color:var(--cd-blue);font-size:13px;transition:transform .2s;}
.cd-faq[open] summary i{transform:rotate(180deg);}
.cd-faq p{border-top:1px solid var(--cd-line);color:var(--cd-gray);font-size:15px;line-height:1.8;margin:0;padding:18px 22px 22px;}

.cd-final-cta{background:#101827;color:#fff;padding:76px 0;}
.cd-final-grid{display:grid;grid-template-columns:1fr auto;gap:34px;align-items:center;}
.cd-final-grid h2{font-size:32px;font-weight:900;line-height:1.35;margin:0 0 14px;max-width:760px;}
  .cd-final-grid p{color:#cbd5e1;font-size:16px;line-height:1.8;margin:0;max-width:760px;}
.cd-final-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;justify-content:flex-end;}
.cd-final-cta .cd-btn-ghost-dark{border-color:#cbd5e1;color:#fff;}
.cd-final-cta .cd-btn-ghost-dark:hover{background:#fff;color:#101827;}

/* Responsive */
@media(max-width:900px){
  .cd-cases,.cd-contact,.cd-roles,.cd-persona-grid,.cd-split,.cd-magic-map,.cd-final-grid,.cd-hero-layout{grid-template-columns:1fr;}
  .cd-check-field{grid-template-columns:1fr;}
  .cd-contact-info{grid-template-columns:1fr;}
  .cd-feature-detail-row{grid-template-columns:1fr;gap:30px;}
  .cd-feature-detail:nth-of-type(even) .cd-feature-detail-copy,
  .cd-feature-detail:nth-of-type(even) .cd-feature-detail-image{order:initial;}
  .cd-feature-detail:nth-of-type(even) .cd-feature-image-stack,
  .cd-feature-detail:nth-of-type(even) .cd-feature-gallery{order:initial;}
  .cd-feature-detail{padding:64px 0;}
  .cd-feature-detail-copy h2{font-size:28px;}
  .cd-feature-detail-image-compact,.cd-feature-detail-image-small{max-width:100%;}
  .cd-ai-role-grid{grid-template-columns:1fr 1fr;}
  .cd-magic-nodes{grid-template-columns:1fr;}
  .cd-cards-3{grid-template-columns:1fr;}
  .cd-stats-grid{grid-template-columns:1fr 1fr;gap:30px 24px;}
  .cd-page-hero h1{font-size:30px;}
  .cd-hero-sub{font-size:17px;}
  .cd-hero-position{font-size:20px;}
  .cd-hero-rotate{font-size:19px;}
  .cd-rotate-wrap{min-width:14ch;}
  .cd-ai-hero{text-align:center;padding:118px 0 72px;}
  .cd-ai-hero .cd-hero-title{font-size:42px;max-width:680px;margin-left:auto;margin-right:auto;}
  .cd-ai-hero .cd-hero-sub{margin-left:auto;margin-right:auto;}
  .cd-ai-hero .cd-hero-rotate{justify-content:center;}
  .cd-ai-hero .cd-hero-actions{justify-content:center;}
  .cd-hero-proof{justify-content:center;margin-left:auto;margin-right:auto;}
  .cd-ai-console{max-width:640px;margin:10px auto 0;text-align:left;}
  .cd-demo{grid-template-columns:1fr;gap:18px;}
  .cd-demo-arrow{transform:rotate(90deg);}
  .cd-demo-outputs{grid-template-columns:1fr 1fr;}
  .cd-ba-head,.cd-ba-row{grid-template-columns:70px 1fr 1fr;}
  .cd-ba-row span{font-size:13px;padding:12px 12px;}
  .cd-article h1{font-size:25px;}
  .cd-burger{display:flex;}
  .cd-nav{position:fixed;top:66px;right:0;width:260px;height:calc(100vh - 66px);background:#fff;
    flex-direction:column;align-items:flex-start;gap:18px;padding:28px 26px;
    box-shadow:-8px 0 30px rgba(0,0,0,.12);transform:translateX(100%);transition:transform .25s;}
  .cd-nav-open .cd-nav{transform:translateX(0);}
  .cd-hero-title{font-size:36px;}
  .cd-why,.cd-feature-row,.cd-testi-row,.cd-footer-inner{grid-template-columns:1fr;gap:34px;}
  .cd-feature-alt .cd-feature-img{order:-1;}
  .cd-cards{grid-template-columns:1fr 1fr;}
  .cd-final-actions{justify-content:flex-start;}
  .cd-partner-logos{gap:34px;}
  .cd-partner-logos img[alt="Wistron"]{height:34px;}
  .cd-partner-logos img[alt*="NVIDIA"]{height:66px;}
  .cd-partner-logos img[alt="wiAdvance"]{height:28px;}
  .cd-partner-logos img[alt="AppWorks"]{height:38px;}
}
@media(max-width:520px){
  .cd-cards,.cd-ai-role-grid{grid-template-columns:1fr;}
  .cd-feature-gallery{grid-template-columns:1fr;}
  .cd-hero{padding:120px 0 90px;}
  .cd-hero-title{font-size:30px;}
  .cd-ai-hero{padding:108px 0 64px;}
  .cd-ai-hero .cd-hero-title{font-size:32px;line-height:1.22;}
  .cd-ai-hero .cd-hero-eyebrow{font-size:12px;}
  .cd-hero-position{font-size:18px;}
  .cd-hero-proof span{font-size:12px;}
  .cd-console-body{padding:12px;}
  .cd-console-drawing{min-height:214px;}
  .cd-hero-actions .cd-btn{width:100%;justify-content:center;}
  .cd-ai-pain{grid-template-columns:1fr;}
  .cd-ai-pain i{margin-bottom:12px;}
  .cd-magic-drawing span{position:static;display:inline-block;margin-top:12px;}
  .cd-final-grid h2{font-size:26px;}
  .cd-final-cta{padding:58px 0;}
}