/* === Design System: YangYY Electronics === */
/* Based on UI UX Pro Max - Trust & Authority Style */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root{
  /* Primary Colors - Professional Navy/Blue */
  --primary:#2563EB;
  --primary-dark:#1D4ED8;
  --primary-light:#3B82F6;
  --secondary:#64748B;

  /* CTA Colors */
  --cta:#F97316;
  --cta-dark:#EA580C;
  --cta-light:#FB923C;

  /* Neutrals - Clean Grays */
  --bg:#F8FAFC;
  --white:#fff;
  --gray-50:#F8FAFC;
  --gray-100:#F1F5F9;
  --gray-200:#E2E8F0;
  --gray-300:#CBD5E1;
  --gray-400:#94A3B8;
  --gray-500:#64748B;
  --gray-600:#475569;
  --gray-700:#334155;
  --gray-800:#1E293B;
  --gray-900:#0F172A;

  /* Semantic */
  --success:#10B981;
  --warning:#F59E0B;
  --error:#EF4444;

  /* Design Tokens */
  --radius:8px;
  --radius-lg:16px;
  --radius-xl:24px;
  --shadow:0 1px 3px rgba(0,0,0,0.08),0 1px 2px rgba(0,0,0,0.06);
  --shadow-md:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-xl:0 20px 25px -5px rgba(0,0,0,0.1),0 10px 10px -5px rgba(0,0,0,0.04);
  --transition:all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Typography */
html{scroll-behavior:smooth}
body{
  font-family:'Plus Jakarta Sans',system-ui,sans-serif;
  color:var(--gray-800);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:720px;margin:0 auto;padding:0 24px}

/* === Nav === */
.nav{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  background:rgba(255,255,255,0.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--gray-200);
  transition:var(--transition);
}
.nav.scrolled{
  background:rgba(255,255,255,0.98);
  box-shadow:var(--shadow-md);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.nav-logo{
  font-size:1.5rem;
  font-weight:700;
  color:var(--gray-900);
  letter-spacing:-0.02em;
}
.nav-logo span{color:var(--primary)}
.nav-links{
  display:flex;
  gap:32px;
  list-style:none;
}
.nav-links a{
  font-size:0.9rem;
  font-weight:500;
  color:var(--gray-600);
  transition:var(--transition);
  position:relative;
}
.nav-links a:hover,
.nav-links a.active{
  color:var(--primary);
}
.nav-links a::after{
  content:'';
  position:absolute;
  bottom:-4px;
  left:0;
  width:0;
  height:2px;
  background:var(--primary);
  transition:var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after{width:100%}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle svg{width:24px;height:24px;stroke:var(--gray-800)}

/* === Buttons === */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 28px;
  border-radius:var(--radius);
  font-size:0.9rem;
  font-weight:600;
  cursor:pointer;
  border:none;
  transition:var(--transition);
}
.btn-primary{
  background:var(--primary);
  color:var(--white);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:var(--shadow-lg);
}
.btn-secondary{
  background:var(--gray-100);
  color:var(--gray-700);
}
.btn-secondary:hover{
  background:var(--gray-200);
  transform:translateY(-2px);
}
.btn-outline{
  background:transparent;
  color:var(--gray-700);
  border:1.5px solid var(--gray-300);
}
.btn-outline:hover{
  border-color:var(--primary);
  background:var(--primary);
  color:var(--white);
  transform:translateY(-2px);
}
.btn-white{
  background:var(--white);
  color:var(--primary);
}
.btn-white:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-lg);
}
.btn-cta{
  background:var(--cta);
  color:var(--white);
}
.btn-cta:hover{
  background:var(--cta-dark);
  transform:translateY(-2px);
  box-shadow:var(--shadow-lg);
}
.btn-sm{padding:8px 16px;font-size:0.8rem}

/* === Hero === */
.hero{
  padding:160px 0 100px;
  background:linear-gradient(135deg,var(--gray-900) 0%,var(--gray-800) 100%);
  color:var(--white);
  position:relative;
  overflow:hidden;
}
/* Subtle tech pattern overlay */
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(37,99,235,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.05) 1px, transparent 1px);
  background-size:60px 60px;
  pointer-events:none;
}
.hero::after{
  content:'';
  position:absolute;
  top:-30%;
  right:-10%;
  width:700px;
  height:700px;
  background:radial-gradient(circle,rgba(37,99,235,0.15) 0%,transparent 60%);
  pointer-events:none;
}
.hero-content{
  position:relative;
  z-index:1;
  max-width:1200px;
  margin:0 auto;
  padding:0 40px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  align-items:center;
}
.hero-text{flex:1;min-width:0}
.hero-visual{display:flex;align-items:center;justify-content:center;position:relative}
.hero-shape{
  width:300px;
  height:300px;
  border:2px solid rgba(37,99,235,0.3);
  border-radius:50%;
  position:relative;
}
.hero-shape::before{
  content:'';
  position:absolute;
  inset:20px;
  border:2px solid rgba(37,99,235,0.2);
  border-radius:50%;
}
.hero-shape::after{
  content:'';
  position:absolute;
  inset:40px;
  border:2px solid rgba(37,99,235,0.1);
  border-radius:50%;
}
.hero-badge{
  display:inline-block;
  padding:6px 16px;
  background:rgba(37,99,235,0.15);
  border:1px solid rgba(37,99,235,0.3);
  border-radius:20px;
  font-size:0.75rem;
  color:var(--primary-light);
  font-weight:600;
  letter-spacing:0.05em;
  text-transform:uppercase;
  margin-bottom:24px;
}
.hero h1{
  font-size:3.5rem;
  font-weight:800;
  line-height:1.1;
  margin-bottom:20px;
  letter-spacing:-0.03em;
}
.hero h1 span{color:var(--primary-light)}
.hero .subtitle{
  font-size:1.25rem;
  color:var(--gray-300);
  margin-bottom:16px;
  font-weight:500;
}
.hero .desc{
  font-size:1rem;
  color:var(--gray-400);
  margin-bottom:36px;
  max-width:480px;
  line-height:1.7;
}
.hero-buttons{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.btn-blessing{
  background:linear-gradient(135deg,var(--cta),var(--cta-dark));
  border:none;
  border-radius:30px;
  padding:12px 24px;
  color:var(--white);
  font-size:0.9rem;
  font-weight:600;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:8px;
  transition:var(--transition);
  box-shadow:0 4px 14px rgba(249,115,22,0.3);
}
.btn-blessing:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(249,115,22,0.4);
}
.heart-icon{font-size:1.1rem}

/* Particle animation for blessing */
.particle{
  position:fixed;
  pointer-events:none;
  z-index:9999;
  animation:fall linear forwards;
}
@keyframes fall{to{transform:translateY(100vh) rotate(720deg);opacity:0}}

/* Blessing popup */
.blessing-popup{
  position:fixed;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%) scale(0);
  background:var(--white);
  padding:48px 64px;
  border-radius:var(--radius-lg);
  text-align:center;
  z-index:10000;
  box-shadow:var(--shadow-xl);
  transition:transform 0.4s cubic-bezier(0.68,-0.55,.265,1.55);
}
.blessing-popup.show{transform:translate(-50%,-50%) scale(1)}
.blessing-popup h2{color:var(--gray-900);font-size:1.8rem;margin-bottom:12px;font-weight:700}
.blessing-popup p{color:var(--gray-600);font-size:1rem}
.blessing-popup .close-btn{position:absolute;top:16px;right:20px;background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--gray-400)}
.blessing-popup .close-btn:hover{color:var(--gray-600)}

@media (max-width:900px){
  .hero-content{grid-template-columns:1fr;gap:48px}
  .hero-visual{display:none}
  .hero h1{font-size:2.5rem}
}

/* === Sections === */
.section{padding:100px 0;position:relative}
.section-header{text-align:center;margin-bottom:56px}
.section-header h2{font-size:2.25rem;font-weight:700;margin-bottom:16px;color:var(--gray-900);letter-spacing:-0.02em}
.section-header p{color:var(--gray-500);font-size:1.05rem;max-width:560px;margin:0 auto}

/* === Category Cards === */
.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px}
.cat-card{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-lg);
  padding:32px 24px;
  text-align:center;
  transition:var(--transition);
  cursor:pointer;
  position:relative;
  overflow:hidden;
}
.cat-card:hover{
  border-color:var(--primary);
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
}
.cat-card .cat-icon{
  width:56px;
  height:56px;
  margin:0 auto 20px;
  background:linear-gradient(135deg,var(--gray-50) 0%,var(--gray-100) 100%);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.cat-card:hover .cat-icon{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%)}
.cat-card .cat-icon svg{width:26px;height:26px;stroke:var(--primary);fill:none;stroke-width:1.5;transition:var(--transition)}
.cat-card:hover .cat-icon svg{stroke:var(--white)}
.cat-card h3{font-size:1rem;font-weight:600;margin-bottom:4px;color:var(--gray-900)}
.cat-card p{font-size:0.85rem;color:var(--gray-500)}

/* === Features === */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.feature-card{
  display:flex;
  gap:20px;
  align-items:flex-start;
  padding:32px;
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-lg);
  transition:var(--transition);
}
.feature-card:hover{
  border-color:var(--primary);
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
}
.feature-icon{
  flex-shrink:0;
  width:48px;
  height:48px;
  background:linear-gradient(135deg,var(--gray-50) 0%,var(--gray-100) 100%);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:var(--transition);
}
.feature-card:hover .feature-icon{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%)}
.feature-icon svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.5;transition:var(--transition)}
.feature-card:hover .feature-icon svg{stroke:var(--white)}
.feature-card h3{font-size:1.05rem;font-weight:600;margin-bottom:8px;color:var(--gray-900)}
.feature-card p{font-size:0.9rem;color:var(--gray-500);line-height:1.6}

/* === Industries === */
.industries-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px}
.industry-tag{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius);
  padding:20px 16px;
  text-align:center;
  font-weight:500;
  font-size:0.9rem;
  transition:var(--transition);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
}
.industry-tag:hover{
  border-color:var(--primary);
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  color:var(--primary);
}
.industry-tag svg{width:24px;height:24px;stroke:var(--gray-400);fill:none;stroke-width:1.5;transition:var(--transition)}
.industry-tag:hover svg{stroke:var(--primary)}

/* === CTA Banner === */
.cta-banner{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  border-radius:var(--radius-xl);
  padding:64px 48px;
  color:var(--white);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.cta-banner::before{
  content:'';
  position:absolute;
  top:-50%;
  right:-10%;
  width:400px;
  height:400px;
  background:radial-gradient(circle,rgba(255,255,255,0.1) 0%,transparent 70%);
}
.cta-banner>div{position:relative;z-index:1}
.cta-banner h2{font-size:1.75rem;font-weight:700;margin-bottom:8px}
.cta-banner p{color:rgba(255,255,255,0.8);font-size:1rem}

/* === Products Page === */
.page-header{
  padding:120px 0 48px;
  background:linear-gradient(135deg,var(--gray-900) 0%,var(--gray-800) 100%);
  color:var(--white);
  position:relative;
  overflow:hidden;
}
.page-header::before{
  content:'';
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(37,99,235,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.05) 1px, transparent 1px);
  background-size:40px 40px;
}
.page-header h1{font-size:2.5rem;font-weight:700;margin-bottom:12px}
.page-header p{color:var(--gray-400)}

.filter-bar{display:flex;gap:16px;flex-wrap:wrap;align-items:center;padding:32px 0}
.search-box{flex:1;min-width:240px;position:relative}
.search-box input{
  width:100%;
  padding:14px 16px 14px 48px;
  border:1px solid var(--gray-200);
  border-radius:var(--radius);
  font-size:0.9rem;
  background:var(--white);
  transition:var(--transition);
}
.search-box input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(37,99,235,0.1);
}
.search-box svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:var(--gray-400)}
.filter-btns{display:flex;gap:8px;flex-wrap:wrap}
.filter-btn{
  padding:10px 20px;
  border:1px solid var(--gray-200);
  border-radius:24px;
  background:var(--white);
  font-size:0.8rem;
  font-weight:500;
  cursor:pointer;
  transition:var(--transition);
}
.filter-btn:hover,
.filter-btn.active{background:var(--primary);color:var(--white);border-color:var(--primary)}

.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;padding-bottom:80px}
.product-card{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-lg);
  padding:28px;
  transition:var(--transition);
}
.product-card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
  border-color:var(--primary);
}
.product-card .card-cat{
  display:inline-block;
  padding:6px 12px;
  background:rgba(37,99,235,0.08);
  color:var(--primary);
  border-radius:16px;
  font-size:0.7rem;
  font-weight:600;
  margin-bottom:16px;
  letter-spacing:0.04em;
  text-transform:uppercase;
}
.product-card h3{font-size:1.1rem;font-weight:600;margin-bottom:8px;color:var(--gray-900)}
.product-card .card-desc{font-size:0.9rem;color:var(--gray-500);margin-bottom:20px}
.product-card .card-specs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:24px}
.product-card .spec{font-size:0.8rem}
.product-card .spec-label{color:var(--gray-400)}
.product-card .spec-value{font-weight:500;color:var(--gray-800)}
.product-card .card-actions{display:flex;gap:10px}

/* === Product Detail === */
.product-detail{padding:120px 0 80px}
.product-detail .breadcrumb{font-size:0.9rem;color:var(--gray-500);margin-bottom:32px}
.product-detail .breadcrumb a{color:var(--primary)}
.detail-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.detail-visual{
  background:var(--gray-100);
  border-radius:var(--radius-lg);
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:300px;
}
.detail-visual svg{width:120px;height:120px;stroke:var(--primary);fill:none;stroke-width:1}
.detail-info .detail-cat{
  display:inline-block;
  padding:4px 14px;
  background:rgba(37,99,235,0.08);
  color:var(--primary);
  border-radius:12px;
  font-size:0.8rem;
  font-weight:600;
  margin-bottom:12px;
}
.detail-info h1{font-size:2rem;font-weight:700;margin-bottom:8px}
.detail-info .detail-desc{color:var(--gray-500);margin-bottom:24px}
.spec-table{width:100%;border-collapse:collapse;margin-bottom:28px}
.spec-table tr{border-bottom:1px solid var(--gray-200)}
.spec-table td{padding:14px 16px;font-size:0.9rem}
.spec-table td:first-child{font-weight:600;color:var(--gray-700);width:40%;background:var(--gray-50)}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap}

/* === About === */
.about-content{display:grid;grid-template-columns:1fr 1.5fr;gap:64px;align-items:center;padding:40px 0}
.about-avatar{
  background:linear-gradient(135deg,var(--gray-800) 0%,var(--gray-900) 100%);
  border-radius:var(--radius-xl);
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:360px;
  position:relative;
  overflow:hidden;
}
.about-avatar::before{
  content:'';
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(37,99,235,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.05) 1px, transparent 1px);
  background-size:30px 30px;
}
.about-avatar svg{width:120px;height:120px;stroke:var(--primary-light);fill:none;stroke-width:1;position:relative;z-index:1}
.about-text h2{font-size:2rem;font-weight:700;margin-bottom:24px;color:var(--gray-900);letter-spacing:-0.02em}
.about-text p{color:var(--gray-600);margin-bottom:20px;font-size:0.95rem;line-height:1.8}
.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.stat{
  text-align:center;
  padding:28px 20px;
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-lg);
  transition:var(--transition);
}
.stat:hover{border-color:var(--primary);transform:translateY(-4px)}
.stat .num{font-size:2.25rem;font-weight:700;color:var(--primary);font-family:'Plus Jakarta Sans',sans-serif}
.stat .label{font-size:0.85rem;color:var(--gray-500);margin-top:8px}

/* === Contact === */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding:40px 0}
.contact-info h2{font-size:1.75rem;font-weight:700;margin-bottom:32px;color:var(--gray-900)}
.contact-item{
  display:flex;
  gap:20px;
  align-items:center;
  margin-bottom:16px;
  padding:20px;
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius);
  transition:var(--transition);
}
.contact-item:hover{
  border-color:var(--primary);
  box-shadow:var(--shadow-md);
}
.contact-item svg{width:24px;height:24px;stroke:var(--primary);fill:none;flex-shrink:0}
.contact-item .ci-label{font-size:0.75rem;color:var(--gray-400);text-transform:uppercase;letter-spacing:0.06em}
.contact-item .ci-value{font-weight:500;font-size:0.95rem;color:var(--gray-800)}
.contact-qrcode{
  margin-top:24px;
  padding:20px;
  background:var(--gray-50);
  border:1px solid var(--gray-200);
  border-radius:var(--radius);
  text-align:center;
}
.contact-qrcode .qrcode-img{
  width:120px;
  height:auto;
  display:block;
  margin:0 auto;
  cursor:pointer;
  transition:var(--transition);
  border-radius:var(--radius);
}
.contact-qrcode .qrcode-img:hover{transform:scale(1.05);box-shadow:var(--shadow-lg)}
.contact-form{background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:40px}

/* QR Code Lightbox */
.qrcode-lightbox{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.85);
  z-index:9999;
  display:none;
  align-items:center;
  justify-content:center;
  opacity:0;
  transition:opacity 0.3s ease;
}
.qrcode-lightbox.show{display:flex;opacity:1}
.qrcode-lightbox-content{position:relative;max-width:90vw;max-height:90vh}
.qrcode-lightbox-content img{max-width:100%;max-height:90vh;border-radius:var(--radius);box-shadow:0 20px 60px rgba(0,0,0,0.5)}
.qrcode-lightbox-content .qrcode-close{
  position:absolute;
  top:-40px;
  right:0;
  background:none;
  border:none;
  color:#fff;
  font-size:2rem;
  cursor:pointer;
  padding:8px;
  line-height:1;
}
.qrcode-lightbox-content .qrcode-close:hover{color:var(--primary-light)}

.contact-form h2{font-size:1.4rem;font-weight:700;margin-bottom:28px;color:var(--gray-900)}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:0.85rem;font-weight:600;margin-bottom:8px;color:var(--gray-600)}
.form-group input,
.form-group textarea{
  width:100%;
  padding:14px 18px;
  border:1px solid var(--gray-200);
  border-radius:var(--radius);
  font-size:0.9rem;
  font-family:inherit;
  transition:var(--transition);
  background:var(--gray-50);
}
.form-group input:focus,
.form-group textarea:focus{
  outline:none;
  border-color:var(--primary);
  background:var(--white);
  box-shadow:0 0 0 3px rgba(37,99,235,0.1);
}
.form-group textarea{resize:vertical;min-height:140px}

/* === Footer === */
.footer{background:var(--gray-900);color:var(--gray-300);padding:64px 0 24px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .nav-logo{font-size:1.3rem;font-weight:700;margin-bottom:16px;display:block;color:var(--primary-light)}
.footer-brand p{font-size:0.9rem;color:var(--gray-400);max-width:280px;line-height:1.7}
.footer-links h4{color:var(--primary-light);font-size:0.85rem;font-weight:600;margin-bottom:16px;letter-spacing:0.08em;text-transform:uppercase}
.footer-links ul{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:0.9rem;color:var(--gray-400);transition:var(--transition);display:inline-block}
.footer-links a:hover{color:var(--white)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:24px;text-align:center;font-size:0.8rem;color:var(--gray-500)}

/* === Lang Switch === */
.lang-switch{display:flex;align-items:center;gap:2px;margin-left:24px;font-size:0.75rem;font-weight:600;background:var(--gray-100);padding:4px;border-radius:var(--radius)}
.lang-switch a{padding:4px 10px;border-radius:4px;color:var(--gray-600);transition:var(--transition)}
.lang-switch a:hover{color:var(--primary)}
.lang-switch a.active{background:var(--primary);color:var(--white)}
.lang-switch .sep{color:var(--gray-300)}

/* === No Results === */
.no-results{text-align:center;padding:60px 20px;color:var(--gray-500)}
.no-results svg{width:48px;height:48px;stroke:var(--gray-300);margin-bottom:16px}

/* === Responsive === */
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--white);flex-direction:column;padding:24px;gap:16px;border-bottom:1px solid var(--gray-200);box-shadow:var(--shadow-lg)}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .hero h1{font-size:2.2rem}
  .hero{padding:120px 0 60px}
  .hero-content{padding:0 24px}
  .section{padding:80px 0}
  .section-header h2{font-size:1.75rem}
  .section-header{margin-bottom:40px}
  .detail-grid,.about-content,.contact-grid{grid-template-columns:1fr}
  .cta-banner{text-align:center;justify-content:center;padding:48px 32px}
  .about-stats{grid-template-columns:repeat(3,1fr)}
  .products-grid{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:repeat(2, 1fr);gap:24px}
  .footer{padding:40px 0 20px}
  .footer-brand{display:none}
}

@media(max-width:480px){
  .hero{padding:100px 0 50px}
  .hero-text{text-align:center}
  .hero .desc{max-width:100%}
  .hero-buttons{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;width:100%;padding:0 20px;box-sizing:border-box}
  .hero-buttons a,.hero-buttons button{width:100%;max-width:280px;min-width:0;padding:14px 20px;font-size:0.9rem;border-radius:8px !important;box-sizing:border-box;text-align:center;justify-content:center}
  .footer-inner{grid-template-columns:1fr;gap:20px;padding:0 12px}
  .blessing-popup{width:90%;max-width:320px;padding:32px 24px}
}

/* === Scroll Reveal Animations === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

.cat-card, .feature-card, .industry-tag {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out, box-shadow 0.25s ease, border-color 0.25s ease;
}

.cat-card.visible, .feature-card.visible, .industry-tag.visible {
  opacity: 1;
  transform: translateY(0);
}

.product-card {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out, box-shadow 0.25s ease, border-color 0.25s ease;
}

.product-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero animation */
.hero-badge {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease-out 0.2s forwards;
}

.hero h1 {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease-out 0.4s forwards;
}

.hero .subtitle {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease-out 0.5s forwards;
}

.hero .desc {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease-out 0.6s forwards;
}

.hero-buttons {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease-out 0.7s forwards;
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-visual {
  opacity: 0;
  transform: scale(0.9);
  animation: heroScaleIn 0.8s ease-out 0.5s forwards;
}

@keyframes heroScaleIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* === Reduced Motion === */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .cat-card,
  .feature-card,
  .industry-tag,
  .product-card,
  .hero-badge,
  .hero h1,
  .hero .subtitle,
  .hero .desc,
  .hero-buttons,
  .hero-visual {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
    transition: none !important;
  }
}

/* === Focus States (Accessibility) === */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}