/* ========================================================================== 
   PQC 後量子密碼解決方案 - 2026 revised
   Changing Information Technology Inc.
   Design direction: align with Changingtec / Ciot Matter page
   ========================================================================== */

:root{
  --pqc-bg:#ffffff;
  --pqc-soft:#f6f7fb;
  --pqc-soft-2:#eef0fb;
  --pqc-text:#202330;
  --pqc-text-2:#555b6b;
  --pqc-text-3:#7b8190;
  --pqc-line:#e4e7ef;
  --pqc-line-strong:#d5d9e5;
  --pqc-brand:#4b3fd6;
  --pqc-brand-deep:#30279f;
  --pqc-brand-soft:#eeecff;
  --pqc-teal:#148c84;
  --pqc-dark:#171a31;
  --pqc-radius:14px;
  --pqc-radius-lg:20px;
  --pqc-shadow:0 12px 32px rgba(32,35,48,.07);
  --pqc-font:"Noto Sans TC","Microsoft JhengHei","PingFang TC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --pqc-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

html{scroll-behavior:smooth;}
body{
  background:var(--pqc-bg);
  color:var(--pqc-text);
  font-family:var(--pqc-font);
  font-size:17px;
  line-height:1.78;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
main{display:block;}
main *{box-sizing:border-box;}
main p{margin:0 0 1em;color:var(--pqc-text-2);}
main a{text-decoration:none;}
main a:focus-visible,
main summary:focus-visible{outline:2px solid var(--pqc-brand);outline-offset:4px;}
main h1,main h2,main h3{
  font-family:var(--pqc-font);
  color:var(--pqc-text);
  margin-top:0;
  letter-spacing:-.015em;
}
main h1{font-size:48px;line-height:1.22;font-weight:700;}
main h2{font-size:36px;line-height:1.35;font-weight:600;}
main h3{font-size:21px;line-height:1.45;font-weight:600;}

/* Hero ------------------------------------------------------------------- */
/*
.pqc-hero{
  position:relative;
  min-height:590px;
  display:flex;
  align-items:center;
  background:
    linear-gradient(90deg,rgba(19,21,45,.94) 0%,rgba(25,29,64,.87) 46%,rgba(21,24,50,.53) 100%),
    url("../images/iot_security/2025_iot_security/pqc/2026_new/pqc_bg.jpg") center/cover no-repeat;
  overflow:hidden;
  color:#fff;
}
*/

.pqc-hero{
  position:relative;
  min-height:590px;
  display:flex;
  align-items:center;
  background:
    linear-gradient(90deg, rgba(19,21,45, 0.5) 0%, rgba(25,29,64, 0.3) 46%, rgba(21,24,50, 0.1) 100%),
    url("../images/iot_security/2025_iot_security/pqc/2026_new/pqc_bg.jpg") center/cover no-repeat;
  overflow:hidden;
  color:#fff;
}

.pqc-hero::after{
  content:"";
  position:absolute;
  inset:auto -12% -45% 40%;
  height:520px;
  background:radial-gradient(circle,rgba(106,94,255,.18) 0%,rgba(106,94,255,0) 68%);
  pointer-events:none;
}
.pqc-hero-overlay{position:absolute;inset:0;pointer-events:none;}
.pqc-hero-inner{position:relative;z-index:2;padding-top:115px;padding-bottom:84px;}
.pqc-hero-copy{max-width:760px;}
.pqc-eyebrow,
.pqc-kicker{
  display:block;
  margin-bottom:13px;
  font-family:var(--pqc-mono);
  font-size:13px;
  line-height:1.4;
  letter-spacing:.13em;
  text-transform:uppercase;
  color:var(--pqc-brand);
}
.pqc-hero h1{color:#fff;margin-bottom:18px;}
.pqc-hero-lead{font-size:25px;line-height:1.5!important;font-weight:500;color:#fff!important;margin-bottom:14px!important;}
.pqc-hero-desc{max-width:700px;font-size:17px;color:rgba(255,255,255,.84)!important;line-height:1.8;}
.pqc-hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:28px;}
.pqc-btn-primary,
.pqc-btn-light{
  border-radius:4px;
  padding:12px 24px;
  font-size:16px;
  font-weight:600;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.pqc-btn-primary{background:var(--pqc-brand);border:1px solid var(--pqc-brand);color:#fff!important;}
.pqc-btn-primary:hover,.pqc-btn-primary:focus{background:var(--pqc-brand-deep);border-color:var(--pqc-brand-deep);color:#fff!important;transform:translateY(-1px);}
.pqc-text-link{font-size:16px;font-weight:500;color:#fff!important;border-bottom:1px solid rgba(255,255,255,.45);padding-bottom:2px;}
.pqc-text-link:hover{border-color:#fff;}
.pqc-hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px;}
.pqc-hero-tags span{border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);padding:6px 11px;border-radius:999px;color:rgba(255,255,255,.9);font-size:13px;}

/* Section navigation ------------------------------------------------------ */
.pqc-section-nav{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.97);border-bottom:1px solid var(--pqc-line);box-shadow:0 5px 16px rgba(24,26,36,.03);}
.pqc-section-nav-inner{display:flex;align-items:center;gap:28px;overflow-x:auto;white-space:nowrap;padding-top:14px;padding-bottom:14px;scrollbar-width:none;}
.pqc-section-nav-inner::-webkit-scrollbar{display:none;}
.pqc-section-nav a{font-size:14px;color:var(--pqc-text-2);transition:color .2s;}
.pqc-section-nav a:hover{color:var(--pqc-brand);}

/* Base sections ----------------------------------------------------------- */
.pqc-section{padding:92px 0;border-top:1px solid var(--pqc-line);background:#fff;}
.pqc-section-soft{background:var(--pqc-soft);}
.pqc-section-head{max-width:930px;margin-bottom:46px;}
.pqc-section-head-center{text-align:center;margin-left:auto;margin-right:auto;}
.pqc-section-head h2{margin-bottom:15px;}
.pqc-section-head p{font-size:17px;line-height:1.8;margin-bottom:0;}
.pqc-kicker-light{color:#c6c1ff;}

/* Timeline ---------------------------------------------------------------- */
.pqc-timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--pqc-line-strong);margin-top:12px;}
.pqc-timeline-item{position:relative;padding:28px 28px 24px 0;}
.pqc-timeline-item:not(:last-child){border-right:1px solid var(--pqc-line);padding-right:28px;margin-right:28px;}
.pqc-year{font-size:31px;font-weight:600;color:var(--pqc-brand);line-height:1;margin-bottom:11px;}
.pqc-type{display:inline-block;font-family:var(--pqc-mono);font-size:11px;letter-spacing:.06em;color:var(--pqc-text-3);margin-bottom:12px;}
.pqc-timeline h3{font-size:18px;margin-bottom:8px;}
.pqc-timeline p{font-size:15px;line-height:1.7;margin:0;}
.pqc-policy-note{margin-top:22px!important;font-size:13px!important;color:var(--pqc-text-3)!important;}

/* Feature cards ----------------------------------------------------------- */
.pqc-feature-grid>div{margin-bottom:20px;}
.pqc-feature-card{height:100%;padding:28px 24px;background:#fff;border:1px solid var(--pqc-line);box-shadow:0 7px 20px rgba(32,35,48,.035);}
.pqc-feature-no{display:block;font-family:var(--pqc-mono);font-size:13px;color:var(--pqc-brand);margin-bottom:32px;}
.pqc-feature-card h3{margin-bottom:10px;}
.pqc-feature-card p{font-size:15px;line-height:1.72;margin:0;}

/* Deliverables ------------------------------------------------------------ */
.pqc-deliverables{border-top:1px solid var(--pqc-line);border-bottom:1px solid var(--pqc-line);display:grid;grid-template-columns:repeat(3,minmax(0,1fr));}
.pqc-deliverable{display:grid;grid-template-columns:42px 1fr;grid-template-rows:auto auto;column-gap:12px;padding:25px 24px;border-right:1px solid var(--pqc-line);border-bottom:1px solid var(--pqc-line);}
.pqc-deliverable:nth-child(3n){border-right:none;}
.pqc-deliverable:nth-child(n+4){border-bottom:none;}
.pqc-deliverable>span{grid-row:1/3;font-family:var(--pqc-mono);color:var(--pqc-brand);font-size:14px;padding-top:2px;}
.pqc-deliverable strong{font-size:17px;font-weight:600;color:var(--pqc-text);}
.pqc-deliverable small{font-size:14px;color:var(--pqc-text-3);}

/* Inventory domains ------------------------------------------------------- */
.pqc-domain-grid>div{margin-bottom:20px;}
.pqc-domain-card{height:100%;display:flex;gap:20px;padding:28px;background:#fff;border:1px solid var(--pqc-line);}
.pqc-domain-icon{width:45px;height:45px;flex:0 0 45px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--pqc-brand-soft);color:var(--pqc-brand);font-family:var(--pqc-mono);font-size:13px;font-weight:600;}
.pqc-domain-card h3{margin-bottom:8px;}
.pqc-domain-card p{font-size:15px;line-height:1.68;margin-bottom:0;}
.pqc-domain-items{font-family:var(--pqc-mono);font-size:12.5px!important;color:var(--pqc-brand)!important;margin-bottom:9px!important;}

/* Scope map --------------------------------------------------------------- */
.pqc-scope-map{margin-top:38px;background:#fff;border:1px solid var(--pqc-line);}
.pqc-scope-title{padding:28px 30px;border-bottom:1px solid var(--pqc-line);}
.pqc-scope-title>span{display:block;font-family:var(--pqc-mono);font-size:12px;letter-spacing:.08em;color:var(--pqc-brand);margin-bottom:6px;text-transform:uppercase;}
.pqc-scope-title h3{font-size:20px;margin:0;}
.pqc-scope-lanes{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));}
.pqc-scope-lane{padding:24px 20px;min-height:170px;}
.pqc-scope-lane:not(:last-child){border-right:1px solid var(--pqc-line);}
.pqc-scope-lane strong{display:block;font-size:16px;color:var(--pqc-text);margin-bottom:15px;}
.pqc-scope-lane span{display:block;font-size:13px;color:var(--pqc-text-2);padding:5px 0;border-bottom:1px dashed #eceef4;}

/* Roadmap ----------------------------------------------------------------- */
.pqc-roadmap{border-top:1px solid var(--pqc-line-strong);}
.pqc-roadmap-step{display:grid;grid-template-columns:118px 1fr;gap:32px;padding:48px 0;border-bottom:1px solid var(--pqc-line);}
.pqc-step-side span{display:block;font-family:var(--pqc-mono);font-size:11px;letter-spacing:.12em;color:var(--pqc-text-3);}
.pqc-step-side b{display:block;margin-top:3px;font-size:40px;font-weight:500;color:var(--pqc-brand);line-height:1;}
.pqc-step-main h3{font-size:25px;margin-bottom:10px;}
.pqc-step-main>p{max-width:900px;font-size:16px;}
.pqc-step-output{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:21px;}
.pqc-step-output b{font-size:13px;margin-right:5px;color:var(--pqc-text);}
.pqc-step-output span{font-size:12.5px;background:var(--pqc-soft);border:1px solid var(--pqc-line);padding:5px 9px;border-radius:999px;color:var(--pqc-text-2);}
.pqc-validation-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:20px;}
.pqc-validation-grid>div{padding:16px 18px;border-left:3px solid var(--pqc-brand);background:var(--pqc-soft);}
.pqc-validation-grid strong{display:block;font-size:15px;margin-bottom:3px;}
.pqc-validation-grid span{font-size:13px;color:var(--pqc-text-2);}
.pqc-agility-flow{margin:24px 0 6px;padding:24px;background:var(--pqc-soft);border:1px solid var(--pqc-line);text-align:center;}
.pqc-agility-policy{display:inline-block;background:var(--pqc-brand);color:#fff;font-weight:600;padding:10px 18px;border-radius:4px;}
.pqc-agility-arrow{color:var(--pqc-brand);padding:8px 0;}
.pqc-agility-options,.pqc-agility-services{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;}
.pqc-agility-options span,.pqc-agility-services span{min-width:130px;background:#fff;border:1px solid var(--pqc-line-strong);padding:9px 13px;font-size:13px;color:var(--pqc-text-2);}

/* Two tracks -------------------------------------------------------------- */
.pqc-track-grid>div{margin-bottom:20px;}
.pqc-track-card{height:100%;padding:34px 32px;background:#fff;border:1px solid var(--pqc-line);box-shadow:var(--pqc-shadow);}
.pqc-track-label{display:block;font-family:var(--pqc-mono);font-size:11px;letter-spacing:.08em;color:var(--pqc-brand);margin-bottom:10px;}
.pqc-track-card h3{font-size:25px;margin-bottom:12px;}
.pqc-track-card p{font-size:15px;line-height:1.75;}
.pqc-track-goal{margin-top:22px;padding:16px 17px;background:var(--pqc-brand-soft);font-size:14px;color:var(--pqc-text-2);}
.pqc-track-goal b{display:block;color:var(--pqc-brand-deep);margin-bottom:3px;}

/* Proof ------------------------------------------------------------------- */
.pqc-proof-section{background:#fff;}
.pqc-proof-grid>div{margin-bottom:20px;}
.pqc-proof-item{height:100%;padding:24px 0 10px;border-top:3px solid var(--pqc-brand);}
.pqc-proof-item strong{display:block;font-size:18px;margin-bottom:8px;color:var(--pqc-text);}
.pqc-proof-item span{display:block;font-size:14px;line-height:1.7;color:var(--pqc-text-2);}

/* Industries -------------------------------------------------------------- */
.pqc-industry-grid>div{margin-bottom:20px;}
.pqc-industry{height:100%;padding:25px 24px;border:1px solid var(--pqc-line);background:#fff;transition:transform .2s ease,box-shadow .2s ease;}
.pqc-industry:hover{transform:translateY(-2px);box-shadow:var(--pqc-shadow);}
.pqc-industry h3{font-size:19px;margin-bottom:9px;}
.pqc-industry p{font-size:14px;line-height:1.72;margin:0;}

/* CTA --------------------------------------------------------------------- */
.pqc-cta-section{padding:86px 0;background:#fff;border-top:1px solid var(--pqc-line);}
.pqc-cta-box{display:flex;align-items:center;justify-content:space-between;gap:42px;background:linear-gradient(135deg,#27234f 0%,#3d35a8 100%);padding:50px 54px;color:#fff;}
.pqc-cta-box>div{max-width:780px;}
.pqc-cta-box h2{color:#fff;font-size:32px;margin-bottom:12px;}
.pqc-cta-box p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.75;margin:0;}
.pqc-btn-light{background:#fff;border:1px solid #fff;color:var(--pqc-brand-deep)!important;white-space:nowrap;}
.pqc-btn-light:hover{background:#f4f2ff;border-color:#f4f2ff;transform:translateY(-1px);}

/* FAQ --------------------------------------------------------------------- */
.pqc-faq-list{border-top:1px solid var(--pqc-line-strong);}
.pqc-faq-list details{border-bottom:1px solid var(--pqc-line);padding:22px 0;}
.pqc-faq-list summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:17px;font-weight:600;color:var(--pqc-text);}
.pqc-faq-list summary::-webkit-details-marker{display:none;}
.pqc-faq-list summary span{display:flex;width:26px;height:26px;flex:0 0 26px;align-items:center;justify-content:center;border:1px solid var(--pqc-line-strong);border-radius:50%;font-weight:400;color:var(--pqc-text-3);transition:transform .2s,border-color .2s,color .2s;}
.pqc-faq-list details[open] summary span{transform:rotate(45deg);border-color:var(--pqc-brand);color:var(--pqc-brand);}
.pqc-faq-list details p{max-width:1020px;font-size:15px;line-height:1.78;margin:13px 0 0;}

/* Responsive -------------------------------------------------------------- */
@media (max-width:1199.98px){
  .pqc-timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
  .pqc-timeline-item:nth-child(2){border-right:none;margin-right:0;}
  .pqc-timeline-item:nth-child(n+3){border-top:1px solid var(--pqc-line);}
  .pqc-scope-lanes{grid-template-columns:repeat(3,minmax(0,1fr));}
  .pqc-scope-lane:nth-child(3){border-right:none;}
  .pqc-scope-lane:nth-child(n+4){border-top:1px solid var(--pqc-line);}
}

@media (max-width:991.98px){
  main h1{font-size:42px;}
  main h2{font-size:31px;}
  .pqc-hero{min-height:auto;}
  .pqc-hero-inner{padding-top:130px;padding-bottom:76px;}
  .pqc-section{padding:76px 0;}
  .pqc-deliverables{grid-template-columns:repeat(2,minmax(0,1fr));}
  .pqc-deliverable:nth-child(3n){border-right:1px solid var(--pqc-line);}
  .pqc-deliverable:nth-child(2n){border-right:none;}
  .pqc-deliverable:nth-child(n+4){border-bottom:1px solid var(--pqc-line);}
  .pqc-deliverable:nth-child(n+5){border-bottom:none;}
  .pqc-roadmap-step{grid-template-columns:90px 1fr;gap:22px;}
  .pqc-cta-box{align-items:flex-start;flex-direction:column;}
}

@media (max-width:767.98px){
  body{font-size:16px;}
  main h1{font-size:36px;}
  main h2{font-size:27px;}
  main h3{font-size:19px;}
  .pqc-hero-inner{padding-top:112px;padding-bottom:58px;}
  .pqc-hero-lead{font-size:21px;}
  .pqc-hero-desc{font-size:16px;}
  .pqc-section-nav{position:relative;}
  .pqc-section{padding:62px 0;}
  .pqc-section-head{margin-bottom:34px;}
  .pqc-timeline{grid-template-columns:1fr;}
  .pqc-timeline-item,.pqc-timeline-item:not(:last-child){border-right:none;margin-right:0;padding:24px 0;}
  .pqc-timeline-item:not(:first-child){border-top:1px solid var(--pqc-line);}
  .pqc-deliverables{grid-template-columns:1fr;}
  .pqc-deliverable,.pqc-deliverable:nth-child(3n),.pqc-deliverable:nth-child(2n),.pqc-deliverable:nth-child(n+5){border-right:none;border-bottom:1px solid var(--pqc-line);}
  .pqc-deliverable:last-child{border-bottom:none;}
  .pqc-scope-lanes{grid-template-columns:1fr;}
  .pqc-scope-lane,.pqc-scope-lane:not(:last-child),.pqc-scope-lane:nth-child(3){border-right:none;}
  .pqc-scope-lane:not(:first-child){border-top:1px solid var(--pqc-line);}
  .pqc-roadmap-step{grid-template-columns:1fr;padding:38px 0;}
  .pqc-step-side{display:flex;align-items:baseline;gap:7px;}
  .pqc-step-side b{font-size:31px;}
  .pqc-validation-grid{grid-template-columns:1fr;}
  .pqc-track-card{padding:28px 24px;}
  .pqc-cta-section{padding:60px 0;}
  .pqc-cta-box{padding:36px 28px;}
  .pqc-cta-box h2{font-size:27px;}
}

@media (max-width:575.98px){
  main h1{font-size:32px;}
  main h2{font-size:25px;}
  .pqc-hero-actions{align-items:flex-start;flex-direction:column;gap:15px;}
  .pqc-domain-card{padding:23px 20px;gap:14px;}
  .pqc-scope-title{padding:23px 20px;}
  .pqc-scope-lane{min-height:auto;padding:20px;}
  .pqc-agility-options span,.pqc-agility-services span{min-width:100%;}
}

@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;animation:none!important;transition:none!important;}
}