/* Lenecold - Graphene Thermal Materials | shared styles */
:root{
  --bg:#F5F8FC; --paper:#FFFFFF; --paper-2:#F0F5FA; --line:#E1E8F0;
  --ink:#0E2240; --muted:#5B6B7F; --dim:#94A3B5;
  --brand:#0E5A8C; --brand-2:#1E8ACB; --brand-3:#082E4D;
  --accent:#34C5E0; --accent-2:#5BE0B4;
  --warm:#F5A623;
  --shadow:0 4px 20px rgba(10,40,80,.08);
  --shadow-lg:0 12px 40px rgba(10,40,80,.12);
  --r-sm:8px; --r:12px; --r-lg:18px; --r-xl:24px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-2);text-decoration:none;transition:color .2s;}
a:hover{color:var(--brand);}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px;}

/* ===== Top bar (NGIC parent identity) ===== */
.ngic-bar{
  background:var(--brand-3);color:#fff;font-size:13px;
  padding:8px 0;border-bottom:1px solid rgba(255,255,255,.08);
}
.ngic-bar .wrap{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.ngic-bar .parent{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.85);}
.ngic-bar .parent b{color:#5BE0B4;}
.ngic-bar .parent img{height:24px;width:auto;}

/* ===== Nav ===== */
.nav{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;max-width:1180px;margin:0 auto;}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--ink);letter-spacing:-.3px;}
.brand-mark{
  width:36px;height:36px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:14px;
  box-shadow:var(--shadow);
}
.brand small{display:block;font-size:10px;font-weight:500;color:var(--muted);letter-spacing:1px;margin-top:-2px;}
.nav-links{display:flex;gap:6px;align-items:center;}
.nav-links a{
  color:var(--ink);font-size:14.5px;font-weight:500;
  padding:8px 14px;border-radius:8px;transition:background .2s,color .2s;
}
.nav-links a:hover{background:var(--paper-2);color:var(--brand);}
.nav-links a.cta{
  background:var(--brand);color:#fff;margin-left:8px;
}
.nav-links a.cta:hover{background:var(--brand-3);color:#fff;}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:8px;}
.nav-mobile{display:none;background:var(--paper);border-top:1px solid var(--line);padding:14px 24px;}
.nav-mobile a{display:block;padding:10px 0;color:var(--ink);font-weight:500;border-bottom:1px solid var(--line);}
.nav-mobile a:last-child{border-bottom:0;}
.nav-mobile.open{display:block;}
@media(max-width:820px){
  .nav-links{display:none;}
  .menu-btn{display:block;}
}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#061F3A 0%,#0E5A8C 60%,#1E8ACB 100%);
  color:#fff;padding:80px 0 90px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 20% 30%,rgba(91,224,180,.18),transparent 50%),
                   radial-gradient(circle at 80% 70%,rgba(52,197,224,.18),transparent 50%);
  pointer-events:none;
}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(91,224,180,.15);border:1px solid rgba(91,224,180,.4);
  padding:6px 14px;border-radius:20px;font-size:13px;color:#5BE0B4;margin-bottom:18px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;background:#5BE0B4;border-radius:50%;}
.hero h1{font-size:48px;font-weight:800;line-height:1.1;letter-spacing:-1px;margin-bottom:18px;}
.hero h1 .acc{background:linear-gradient(135deg,#5BE0B4 0%,#34C5E0 100%);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p{font-size:17px;color:rgba(255,255,255,.85);max-width:560px;margin-bottom:30px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:10px;font-size:15px;font-weight:600;
  transition:transform .15s,box-shadow .15s;cursor:pointer;border:0;
}
.btn-primary{background:var(--accent-2);color:var(--brand-3);box-shadow:0 6px 20px rgba(91,224,180,.35);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(91,224,180,.45);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3);backdrop-filter:blur(8px);}
.btn-ghost:hover{background:rgba(255,255,255,.2);}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-top:36px;padding-top:32px;border-top:1px solid rgba(255,255,255,.15);
}
.hero-stat .num{font-size:28px;font-weight:800;color:#5BE0B4;}
.hero-stat .lbl{font-size:12.5px;color:rgba(255,255,255,.7);margin-top:4px;}

/* hero right: product mosaic */
.hero-visual{
  position:relative;height:380px;
  background:url("../images/hero-graphene.png") center/cover;
  border-radius:var(--r-lg);
  box-shadow:0 30px 80px rgba(0,0,0,.4),inset 0 0 0 1px rgba(255,255,255,.1);
  overflow:hidden;
}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(6,31,58,.25) 0%,rgba(6,31,58,.6) 100%);
}
.hero-visual .floats{
  position:absolute;inset:0;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;padding:24px;z-index:2;
}
.hero-float{
  background:rgba(255,255,255,.95);backdrop-filter:blur(10px);
  border-radius:var(--r);padding:16px;color:var(--ink);
  box-shadow:0 10px 30px rgba(0,0,0,.2);
  display:flex;flex-direction:column;justify-content:space-between;
}
.hero-float .ft{font-size:11px;color:var(--muted);letter-spacing:1px;text-transform:uppercase;}
.hero-float h4{font-size:17px;font-weight:700;margin:6px 0 0;}
.hero-float .num{font-size:26px;font-weight:800;color:var(--brand);}
@media(max-width:880px){
  .hero{padding:56px 0 70px;}
  .hero .wrap{grid-template-columns:1fr;}
  .hero h1{font-size:36px;}
  .hero-visual{height:240px;}
}

/* ===== Sections ===== */
section{padding:80px 0;}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;color:var(--brand-2);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:12px;}
h2{font-size:36px;font-weight:800;color:var(--ink);line-height:1.2;letter-spacing:-.5px;margin-bottom:14px;}
h2 .acc{color:var(--brand-2);}
.lead{font-size:17px;color:var(--muted);max-width:680px;margin-bottom:48px;}
.section-head{text-align:center;margin-bottom:50px;}
.section-head .lead{margin-left:auto;margin-right:auto;}

/* ===== Two-product grid ===== */
.products-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:10px;}
.product-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:transform .2s,box-shadow .2s,border-color .2s;
  display:flex;flex-direction:column;
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--brand-2);}
.product-card .pc-img{
  height:240px;background:var(--paper-2);position:relative;overflow:hidden;
  background:linear-gradient(135deg,#E3F2FB 0%,#F0F5FA 100%);
}
.product-card .pc-img img{width:100%;height:100%;object-fit:cover;}
.product-card .pc-tag{
  position:absolute;top:14px;left:14px;
  background:var(--brand);color:#fff;font-size:11px;font-weight:700;
  padding:5px 12px;border-radius:20px;letter-spacing:1px;
}
.product-card .pc-body{padding:28px 28px 24px;flex:1;display:flex;flex-direction:column;}
.product-card h3{font-size:22px;font-weight:800;margin-bottom:6px;color:var(--ink);}
.product-card .pc-sub{font-size:13px;color:var(--brand-2);font-weight:600;margin-bottom:16px;letter-spacing:.3px;}
.product-card p{color:var(--muted);font-size:14.5px;margin-bottom:18px;}
.product-card .pc-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px;}
.product-card .pc-stat{background:var(--paper-2);border-radius:var(--r-sm);padding:10px 8px;text-align:center;}
.product-card .pc-stat .v{font-size:18px;font-weight:800;color:var(--brand);}
.product-card .pc-stat .u{font-size:11px;color:var(--muted);margin-top:2px;}
.product-card .pc-link{
  margin-top:auto;color:var(--brand);font-weight:600;font-size:14px;
  display:inline-flex;align-items:center;gap:6px;
}
.product-card .pc-link::after{content:"→";transition:transform .2s;}
.product-card:hover .pc-link::after{transform:translateX(4px);}
@media(max-width:760px){.products-grid{grid-template-columns:1fr;}}

/* ===== Core tech ===== */
.tech{
  background:linear-gradient(180deg,var(--bg) 0%,var(--paper) 100%);
}
.tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.tech-visual{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(135deg,#061F3A 0%,#0E5A8C 100%);
  padding:32px;color:#fff;min-height:380px;
}
.tech-visual::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 70% 30%,rgba(52,197,224,.25),transparent 50%);
}
.tech-visual .tv-label{
  position:relative;font-size:11px;letter-spacing:1.5px;text-transform:uppercase;
  color:#5BE0B4;margin-bottom:8px;
}
.tech-visual h3{position:relative;font-size:26px;font-weight:800;margin-bottom:16px;}
.tech-visual p{position:relative;color:rgba(255,255,255,.8);font-size:15px;margin-bottom:24px;}
.tech-visual img{position:relative;width:100%;max-height:220px;object-fit:contain;background:rgba(255,255,255,.05);border-radius:var(--r);padding:14px;}
.tech-visual .scale{position:relative;font-size:12px;color:rgba(255,255,255,.5);margin-top:8px;text-align:right;}
.tech-features{margin-top:32px;}
.tech-feature{display:flex;gap:18px;margin-bottom:24px;}
.tech-feature .icon{
  flex-shrink:0;width:46px;height:46px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.tech-feature .icon svg{width:22px;height:22px;}
.tech-feature h4{font-size:16px;font-weight:700;margin-bottom:4px;color:var(--ink);}
.tech-feature p{color:var(--muted);font-size:14px;}
@media(max-width:820px){.tech-grid{grid-template-columns:1fr;gap:32px;}}

/* ===== Spec / metrics row ===== */
.specs{padding:64px 0;background:var(--brand-3);color:#fff;}
.specs-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.spec-card{padding:20px;}
.spec-card .v{font-size:42px;font-weight:800;color:#5BE0B4;letter-spacing:-1px;}
.spec-card .u{font-size:13px;color:rgba(255,255,255,.6);margin:4px 0 8px;}
.spec-card .l{font-size:14px;color:rgba(255,255,255,.85);}
@media(max-width:760px){.specs-grid{grid-template-columns:repeat(2,1fr);}}

/* ===== Applications ===== */
.apps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.app-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:26px 22px;transition:transform .2s,box-shadow .2s;
}
.app-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.app-card .cat{font-size:11px;font-weight:700;color:var(--brand-2);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:10px;}
.app-card h4{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:10px;}
.app-card ul{list-style:none;}
.app-card li{font-size:13.5px;color:var(--muted);padding:5px 0 5px 18px;position:relative;}
.app-card li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent-2);}
@media(max-width:820px){.apps-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:560px){.apps-grid{grid-template-columns:1fr;}}

/* ===== NGIC trust ===== */
.ngic{
  background:linear-gradient(135deg,#0A2540 0%,#0E5A8C 100%);
  color:#fff;padding:72px 0;
}
.ngic-grid{display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center;}
.ngic-logo img{height:90px;width:auto;}
.ngic h3{font-size:24px;font-weight:800;margin-bottom:14px;color:#fff;}
.ngic h3 .acc{color:#5BE0B4;}
.ngic p{color:rgba(255,255,255,.85);font-size:15.5px;margin-bottom:18px;}
.ngic-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  padding:8px 16px;border-radius:8px;font-size:13px;color:#fff;font-weight:500;
}
.badge.accent{background:rgba(91,224,180,.15);border-color:rgba(91,224,180,.4);color:#5BE0B4;}
@media(max-width:760px){.ngic-grid{grid-template-columns:1fr;text-align:center;}.ngic-badges{justify-content:center;}}

/* ===== CTA / contact ===== */
.cta{
  background:linear-gradient(135deg,#061F3A 0%,#0E5A8C 100%);
  color:#fff;text-align:center;padding:72px 0;
}
.cta h2{color:#fff;}
.cta .lead{color:rgba(255,255,255,.8);margin:0 auto 32px;}
.cta .btn-primary{margin:0 auto;}

/* ===== Footer ===== */
.foot{background:#04142A;color:rgba(255,255,255,.7);padding:60px 0 30px;font-size:14px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px;}
.foot-brand img{height:36px;margin-bottom:14px;}
.foot-brand p{font-size:13.5px;line-height:1.7;}
.foot h5{color:#fff;font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:16px;}
.foot a{display:block;color:rgba(255,255,255,.6);padding:5px 0;font-size:13.5px;transition:color .2s;}
.foot a:hover{color:#5BE0B4;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:24px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media(max-width:480px){.foot-grid{grid-template-columns:1fr;}}

/* ===== Page hero (sub pages) ===== */
.page-hero{
  background:linear-gradient(135deg,#061F3A 0%,#0E5A8C 100%);
  color:#fff;padding:60px 0;
}
.page-hero .wrap{position:relative;}
.page-hero .eyebrow{color:#5BE0B4;}
.page-hero h1{font-size:38px;font-weight:800;letter-spacing:-.5px;margin-bottom:12px;}
.page-hero p{font-size:16px;color:rgba(255,255,255,.85);max-width:680px;}

/* ===== Two-column layout (sub pages) ===== */
.content-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:start;margin-top:20px;}
@media(max-width:880px){.content-grid{grid-template-columns:1fr;}}
.content-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  padding:32px;
}
.content-card h3{font-size:22px;font-weight:800;margin-bottom:14px;color:var(--ink);}
.content-card p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.feature-list{list-style:none;margin-top:18px;}
.feature-list li{padding:14px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;}
.feature-list li:last-child{border-bottom:0;}
.feature-list .fl-v{font-size:24px;font-weight:800;color:var(--brand);min-width:130px;}
.feature-list .fl-l{font-size:13.5px;color:var(--muted);line-height:1.6;padding-top:4px;}
.feature-list h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:4px;}

/* ===== Charts (SVG) ===== */
.chart-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px;}
.chart-card h4{font-size:16px;font-weight:700;margin-bottom:4px;color:var(--ink);}
.chart-card .sub{font-size:13px;color:var(--muted);margin-bottom:18px;}
.chart-card svg{width:100%;height:auto;display:block;}

/* ===== Radar chart wrapper ===== */
.radar-legend{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:12.5px;}
.radar-legend .dot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:6px;vertical-align:middle;}

/* ===== Form ===== */
.form{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:32px;}
.form h3{font-size:22px;font-weight:800;margin-bottom:8px;}
.form .sub{font-size:14px;color:var(--muted);margin-bottom:24px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px;}
.form .field{display:flex;flex-direction:column;}
.form .field.full{grid-column:1/-1;}
.form label{font-size:12.5px;font-weight:600;color:var(--ink);margin-bottom:6px;letter-spacing:.3px;}
.form input,.form select,.form textarea{
  border:1px solid var(--line);background:var(--paper-2);
  padding:11px 14px;border-radius:8px;font-size:14px;font-family:inherit;color:var(--ink);
  transition:border-color .2s,background .2s;
}
.form input:focus,.form select:focus,.form textarea:focus{
  outline:none;border-color:var(--brand-2);background:var(--paper);
}
.form textarea{resize:vertical;min-height:90px;}
.form-submit{
  width:100%;background:var(--brand);color:#fff;border:0;padding:14px;
  border-radius:10px;font-size:15px;font-weight:700;cursor:pointer;
  transition:background .2s;
}
.form-submit:hover{background:var(--brand-3);}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;text-align:center;}
@media(max-width:560px){.form-grid{grid-template-columns:1fr;}}

/* ===== Contact info ===== */
.contact-info{display:flex;flex-direction:column;gap:18px;}
.contact-row{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;
}
.contact-icon{
  flex-shrink:0;width:40px;height:40px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.contact-icon svg{width:20px;height:20px;}
.contact-row b{display:block;font-size:12.5px;color:var(--muted);font-weight:600;margin-bottom:2px;text-transform:uppercase;letter-spacing:.5px;}
.contact-row a,.contact-row span{font-size:15px;color:var(--ink);font-weight:500;}

/* ===== WhatsApp floating ===== */
.wa-float{
  position:fixed;bottom:24px;right:24px;z-index:90;
  width:56px;height:56px;border-radius:50%;
  background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(37,211,102,.45);
  transition:transform .2s;
}
.wa-float:hover{transform:scale(1.08);color:#fff;}
.wa-float svg{width:28px;height:28px;}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ===== Product hero image (sub pages) ===== */
.product-hero{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;margin-bottom:32px;text-align:center;
}
.product-hero img{max-width:100%;max-height:420px;width:auto;height:auto;display:inline-block;border-radius:var(--r-sm);}
.product-hero figcaption{margin-top:14px;font-size:13px;color:var(--muted);font-weight:500;}

/* ===== Product gallery (2-up) ===== */
.gallery-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:32px 0;}
.gallery-2 .g-item{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;transition:transform .2s,box-shadow .2s;
}
.gallery-2 .g-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.gallery-2 .g-item img{width:100%;height:280px;object-fit:contain;background:linear-gradient(135deg,#F8FBFD,#EEF5FA);padding:20px;}
.gallery-2 .g-item figcaption{padding:14px 18px;font-size:13px;color:var(--muted);font-weight:500;border-top:1px solid var(--line);background:var(--paper);}
@media(max-width:680px){.gallery-2{grid-template-columns:1fr;}}

/* ===== Application banner (3-up panoramic) ===== */
.app-banner{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;margin:32px 0;
}
.app-banner img{width:100%;height:auto;display:block;}
.app-banner .banner-caption{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--line);
}
.app-banner .banner-caption > div{
  padding:16px 20px;font-size:13px;color:var(--muted);font-weight:500;text-align:center;
  border-right:1px solid var(--line);
}
.app-banner .banner-caption > div:last-child{border-right:none;}
.app-banner .banner-caption strong{display:block;font-size:14px;color:var(--ink);margin-bottom:2px;font-weight:700;}
@media(max-width:680px){.app-banner .banner-caption{grid-template-columns:1fr;}.app-banner .banner-caption > div{border-right:none;border-bottom:1px solid var(--line);}.app-banner .banner-caption > div:last-child{border-bottom:none;}}

/* ===== SEM + diagram 2-up (horizontal cards) ===== */
.tech-evidence{display:grid;grid-template-columns:1fr;gap:24px;margin:32px 0;}
.tech-evidence .ev-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;}
.tech-evidence .ev-card img{width:100%;height:auto;display:block;background:linear-gradient(180deg,#FAFCFE 0%,#F2F6FA 100%);padding:24px 18px;}
.tech-evidence .ev-card figcaption{padding:18px 22px 20px;border-top:1px solid var(--line);background:var(--paper);}
.tech-evidence .ev-card figcaption h5{font-size:13px;letter-spacing:1.4px;text-transform:uppercase;color:var(--brand-2);font-weight:800;margin-bottom:6px;}
.tech-evidence .ev-card figcaption p{font-size:14px;line-height:1.65;color:var(--muted);font-weight:500;margin:0;}
.tech-evidence .ev-card figcaption .ev-panels{display:flex;gap:18px;margin-top:12px;font-size:12.5px;color:var(--dim);}
.tech-evidence .ev-card figcaption .ev-panels span{display:inline-flex;align-items:center;gap:6px;}
.tech-evidence .ev-card figcaption .ev-panels b{display:inline-block;width:18px;height:18px;border-radius:50%;background:var(--brand);color:#fff;font-size:11px;font-weight:800;line-height:18px;text-align:center;}
@media(max-width:920px){
  .tech-evidence .ev-card{flex-direction:column;}
  .tech-evidence .ev-card img{width:100%;max-height:260px;padding:18px;}
  .tech-evidence .ev-card figcaption{width:100%;border-left:none;border-top:1px solid var(--line);padding:16px 18px;}
}
@media(max-width:680px){.tech-evidence .ev-card img{padding:18px 12px;}
.tech-evidence .ev-card figcaption{padding:16px 18px;}
.tech-evidence .ev-card figcaption .ev-panels{flex-direction:column;gap:8px;}}

/* ===== Case study (image + text side by) ===== */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin:32px 0;}
.case-grid .case-img{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r);padding:24px;text-align:center;}
.case-grid .case-img img{max-width:100%;max-height:340px;width:auto;height:auto;}
@media(max-width:820px){.case-grid{grid-template-columns:1fr;}}

/* ===== Feature card with image ===== */
.app-card.has-img{padding:0;overflow:hidden;}
.app-card.has-img .app-img{height:160px;overflow:hidden;background:linear-gradient(135deg,#E3F2FB 0%,#F0F5FA 100%);}
.app-card.has-img .app-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.app-card.has-img:hover .app-img img{transform:scale(1.04);}
.app-card.has-img .pc-body{padding:18px 20px 22px;}
.app-card.has-img .app-title-line{display:flex;gap:8px;align-items:baseline;margin-bottom:10px;}
.app-card.has-img .cat{font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;color:var(--brand-2);margin:0;white-space:nowrap;}
.app-card.has-img h4{flex:1;min-width:0;font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0;}
.app-card.has-img h4::before{content:"—";color:var(--dim);margin-right:7px;}
@media(max-width:820px){
  .app-card.has-img .app-title-line{flex-direction:column;gap:4px;margin-bottom:8px;}
  .app-card.has-img h4{white-space:normal;overflow:visible;text-overflow:clip;}
  .app-card.has-img h4::before{display:none;}
}

/* ============================================================
   TECHNICAL RESOURCE / ARTICLE LAYOUT  (content hub)
   ============================================================ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;}
@media(max-width:1020px){.article-layout{grid-template-columns:1fr;}}

.article-body{max-width:760px;}
.article-body h2{font-size:26px;font-weight:800;color:var(--ink);margin:44px 0 14px;letter-spacing:-.3px;scroll-margin-top:100px;}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-size:19px;font-weight:700;color:var(--ink);margin:30px 0 10px;scroll-margin-top:100px;}
.article-body p{color:var(--muted);font-size:16px;line-height:1.85;margin-bottom:18px;}
.article-body ul,.article-body ol{color:var(--muted);font-size:16px;line-height:1.85;margin:0 0 20px 22px;}
.article-body li{margin-bottom:9px;}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body a:not(.btn){color:var(--brand);text-decoration:underline;text-underline-offset:2px;}

.article-lead{font-size:18px !important;color:var(--ink) !important;line-height:1.75 !important;font-weight:500;border-left:3px solid var(--accent);padding-left:20px;margin-bottom:30px !important;}

.formula-box{background:var(--paper-2);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--r-sm);padding:20px 24px;margin:24px 0;font-size:16px;color:var(--ink);line-height:1.7;}
.formula-box .fm{font-family:"Cambria Math",Georgia,serif;font-size:19px;color:var(--brand-3);display:block;margin:10px 0;}
.formula-box .fm-note{font-size:14px;color:var(--muted);}

.data-table{width:100%;border-collapse:collapse;margin:26px 0;font-size:14.5px;background:var(--paper);}
.data-table th{background:var(--brand-3);color:#fff;text-align:left;padding:12px 14px;font-weight:700;font-size:14px;}
.data-table td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--muted);vertical-align:top;}
.data-table tbody tr:nth-child(even){background:var(--paper-2);}
.data-table td:first-child{font-weight:600;color:var(--ink);}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:26px 0;}
.table-scroll .data-table{margin:0;min-width:520px;}

.callout{border-radius:var(--r-sm);padding:20px 24px;margin:26px 0;font-size:15.5px;line-height:1.75;}
.callout-tip{background:#EFFAF5;border:1px solid #B7EBD8;color:#0B5A45;}
.callout-warn{background:#FFF7E8;border:1px solid #F5D8A0;color:#7A4C05;}
.callout-note{background:#EEF5FC;border:1px solid #C8DEF0;color:#123F63;}
.callout b{display:block;margin-bottom:6px;font-size:15px;}

.steps{counter-reset:st;list-style:none;margin:24px 0;padding:0;}
.steps li{counter-increment:st;position:relative;padding-left:48px;margin-bottom:22px;}
.steps li::before{content:counter(st);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;}
.steps h4{font-size:16.5px;font-weight:700;color:var(--ink);margin:4px 0 6px;}
.steps p{font-size:15px;color:var(--muted);line-height:1.75;margin:0;}
.steps li > p{font-size:15px;color:var(--muted);line-height:1.75;margin:0;}

.faq-item{border-bottom:1px solid var(--line);padding:18px 0;}
.faq-item:last-child{border-bottom:0;}
.faq-q{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.faq-a{font-size:15px;color:var(--muted);line-height:1.8;}

.toc{position:sticky;top:96px;background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;margin-bottom:24px;}
.toc h5{font-size:13px;letter-spacing:1.4px;text-transform:uppercase;color:var(--dim);font-weight:800;margin-bottom:12px;}
.toc a{display:block;font-size:14.5px;color:var(--muted);padding:7px 0;line-height:1.5;border-left:2px solid transparent;padding-left:12px;margin-left:-12px;}
.toc a:hover{color:var(--brand);border-left-color:var(--accent);}

.side-cta{background:linear-gradient(135deg,#061F3A 0%,#0E5A8C 100%);color:#fff;border-radius:var(--r);padding:26px 24px;}
.side-cta h4{font-size:18px;font-weight:800;margin-bottom:10px;}
.side-cta p{font-size:14.5px;color:rgba(255,255,255,.82);line-height:1.7;margin-bottom:18px;}
.side-cta .btn{display:block;text-align:center;}

.res-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;}
.res-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s;}
.res-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.res-card .rc-tag{font-size:12px;font-weight:800;letter-spacing:1.2px;text-transform:uppercase;color:var(--brand-2);margin-bottom:10px;}
.res-card h3{font-size:19px;font-weight:800;color:var(--ink);margin-bottom:10px;line-height:1.35;}
.res-card p{font-size:14.5px;color:var(--muted);line-height:1.7;flex:1;margin-bottom:16px;}
.res-card .rc-more{font-size:14px;font-weight:700;color:var(--brand);}

.article-meta{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px;color:var(--dim);margin-bottom:26px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.article-meta span{display:flex;align-items:center;gap:6px;}

.related-box{margin-top:50px;padding-top:30px;border-top:2px solid var(--line);}
.related-box h3{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:18px;}
.related-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;}
.related-links a{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-sm);padding:16px 18px;font-size:15px;font-weight:600;color:var(--ink);transition:border-color .2s,color .2s;}
.related-links a:hover{border-color:var(--accent);color:var(--brand);}

.spec-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:26px 0;}
.spec-cell{background:var(--paper);padding:18px 20px;}
.spec-cell .sv{font-size:22px;font-weight:800;color:var(--brand);margin-bottom:4px;}
.spec-cell .sl{font-size:13px;color:var(--muted);line-height:1.5;}

/* ===== Language switcher ===== */
.lang-switch{
  display:inline-flex;align-items:center;gap:6px;
  margin-left:10px;padding:6px 10px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:8px;
  font-size:13px;font-weight:600;color:var(--muted);
}
.lang-switch a{padding:2px 6px;border-radius:4px;color:var(--muted);transition:color .2s,background .2s;}
.lang-switch a:hover{color:var(--brand);background:transparent;}
.lang-switch a.active{color:var(--brand);background:var(--paper);box-shadow:0 0 0 1px var(--line);}
.lang-switch .sep{color:var(--dim);font-weight:300;}
.nav-mobile .lang-switch-mobile{
  display:flex;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line);
}
.nav-mobile .lang-switch-mobile a{padding:6px 14px;border:1px solid var(--line);border-radius:6px;color:var(--ink);}