:root {
  --primary: #0A1F44;
  --primary-light: #132b52;
  --primary-dark: #07142e;
  --accent: #FFC400;
  --accent-hover: #ffd633;
  --text-dark: #0A1F44;
  --text-body: #4a5568;
  --text-light: #718096;
  --bg-light: #f7f9fc;
  --bg-white: #ffffff;
  --border: #e5eaf2;
  --shadow: 0 4px 20px rgba(10,31,68,0.08);
  --shadow-lg: 0 18px 50px rgba(10,31,68,0.12);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--text-body);line-height:1.7;background:#fff}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
h1,h2,h3,h4{font-weight:700;line-height:1.25;color:var(--text-dark)}
h1{font-size:3rem}
h2{font-size:2rem;margin-bottom:0.75rem}
h3{font-size:1.2rem}
.section-title{text-align:center;margin-bottom:3.5rem}
.section-title h2::after{content:'';display:block;width:60px;height:3px;background:var(--accent);margin:12px auto 0;border-radius:2px}
.section-title p{color:var(--text-light);max-width:640px;margin:12px auto 0;font-size:1.05rem}
.top-bar{background:var(--primary-dark);color:rgba(255,255,255,0.8);font-size:0.8rem;padding:8px 0}
.top-bar .container{display:flex;justify-content:space-between;align-items:center}
.top-bar a{color:rgba(255,255,255,0.8);transition:color 0.2s;display:inline-flex;align-items:center;gap:4px}
.top-bar a:hover{color:var(--accent)}
.top-bar .top-right{display:flex;gap:16px;align-items:center}
.top-bar .top-right svg{width:13px;height:13px}
.header{background:rgba(255,255,255,0.98);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.header .container{display:flex;justify-content:space-between;align-items:center;height:80px}
.logo-text{font-size:1.4rem;font-weight:800;color:var(--primary);line-height:1.15}
.logo-text small{display:block;font-size:0.65rem;font-weight:500;color:var(--text-light)}
.nav{display:flex;gap:28px;align-items:center}
.nav a{font-size:0.9rem;font-weight:600;color:var(--text-dark);transition:color 0.2s;padding:4px 0}
.nav a:hover,.nav a.active{color:var(--primary)}
.nav a.active{border-bottom:2.5px solid var(--accent)}
.nav-cta{background:var(--accent)!important;color:var(--primary)!important;padding:10px 24px!important;border-radius:50px!important}
.nav-cta:hover{background:var(--accent-hover)!important}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-toggle span{display:block;width:24px;height:2.5px;background:var(--primary);margin:5px 0;border-radius:2px}
.hero{position:relative;min-height:92vh;display:flex;align-items:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,31,68,0.94) 0%,rgba(10,31,68,0.7) 50%,rgba(10,31,68,0.35) 100%);z-index:1}
.hero-content{position:relative;z-index:2;color:#fff;max-width:800px;padding-top:40px}
.hero-badge{display:inline-block;background:rgba(255,196,0,0.15);border:1px solid rgba(255,196,0,0.3);color:var(--accent);padding:6px 18px;border-radius:50px;font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:1.8rem}
.hero-content h1{font-size:3.2rem;color:#fff;margin-bottom:1.2rem;line-height:1.12}
.hero-content p{font-size:1.12rem;opacity:0.85;margin-bottom:2.2rem;max-width:600px}
.btn-hero{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:var(--primary);padding:15px 38px;border-radius:50px;font-weight:700;font-size:0.95rem;transition:all 0.3s;border:none;cursor:pointer}
.btn-hero:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-hero-outline{display:inline-flex;align-items:center;gap:10px;background:transparent;color:#fff;padding:14px 36px;border-radius:50px;font-weight:600;font-size:0.95rem;border:2px solid rgba(255,255,255,0.25);transition:all 0.3s}
.btn-hero-outline:hover{border-color:var(--accent);color:var(--accent)}
.hero-stats{display:flex;gap:50px;margin-top:3.5rem;padding-top:2rem;border-top:1px solid rgba(255,255,255,0.12)}
.hero-stats .stat h3{font-size:1.9rem;color:var(--accent)}
.hero-stats .stat p{font-size:0.82rem;opacity:0.6;margin:2px 0 0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:50px;font-weight:600;font-size:0.9rem;transition:all 0.3s;border:none;cursor:pointer}
.btn-primary{background:var(--accent);color:var(--primary)}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--border)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:var(--primary-light);transform:translateY(-2px)}
section{padding:90px 0}
section.bg-light{background:var(--bg-light)}
.cert-bar{background:var(--bg-white);border-bottom:1px solid var(--border);padding:30px 0}
.cert-bar .certs{display:flex;justify-content:center;align-items:center;gap:50px;flex-wrap:wrap}
.cert-bar .certs span{font-size:0.85rem;font-weight:600;color:var(--text-light)}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:28px}
.feature-card{background:var(--bg-white);padding:36px 30px;border-radius:14px;border:1px solid var(--border);transition:all 0.3s}
.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.feature-card .f-icon{width:60px;height:60px;background:rgba(255,196,0,0.1);border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:1.2rem}
.feature-card .f-icon svg{width:28px;height:28px;color:var(--accent)}
.feature-card h3{margin-bottom:0.5rem}
.feature-card p{font-size:0.92rem;color:var(--text-light)}
.products-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:28px}
.product-card{background:var(--bg-white);border-radius:16px;overflow:hidden;border:1px solid var(--border);transition:all 0.35s}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.product-card .p-img{height:260px;overflow:hidden}
.product-card .p-img img{width:100%;height:100%;object-fit:cover;transition:transform 0.6s}
.product-card:hover .p-img img{transform:scale(1.06)}
.product-card .p-body{padding:26px}
.product-card .p-body h3{margin-bottom:0.5rem}
.product-card .p-body p{font-size:0.9rem;color:var(--text-light);margin-bottom:1rem}
.product-card .p-specs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:1.2rem}
.product-card .p-specs span{display:inline-block;background:var(--bg-light);padding:3px 12px;border-radius:50px;font-size:0.78rem;color:var(--text-light)}
.about-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-row .about-img{border-radius:16px;overflow:hidden;height:420px}
.about-row .about-img img{width:100%;height:100%;object-fit:cover}
.about-row .text h2{text-align:left}
.about-row .text p{color:var(--text-light);margin-bottom:1rem;font-size:0.95rem}
.about-row .about-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:1.8rem}
.about-row .about-stats .s-item{text-align:center;padding:18px;background:var(--bg-light);border-radius:12px;border:1px solid var(--border)}
.about-row .about-stats .s-item h3{color:var(--accent);font-size:1.7rem}
.about-row .about-stats .s-item p{font-size:0.82rem;margin:0;color:var(--text-light)}
.cta-block{background:var(--primary);color:#fff;text-align:center;padding:80px 0}
.cta-block h2{color:#fff;margin-bottom:1rem}
.cta-block p{opacity:0.75;max-width:600px;margin:0 auto 2rem}
.page-hero{background:var(--primary);color:#fff;text-align:center;padding:70px 0 60px}
.page-hero h1{color:#fff;margin-bottom:0.5rem}
.page-hero p{opacity:0.7;max-width:600px;margin:0 auto;font-size:1.05rem}
.prod-detail{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start;margin-top:30px}
.prod-detail .prod-gallery{border-radius:16px;overflow:hidden}
.prod-detail .prod-gallery img{width:100%;height:420px;object-fit:cover}
.prod-detail .prod-text h2{text-align:left}
.prod-detail .prod-text p{color:var(--text-light);margin-bottom:1.2rem}
.spec-tbl{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:0.88rem}
.spec-tbl th,.spec-tbl td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--border)}
.spec-tbl th{background:var(--bg-light);font-weight:600;color:var(--primary)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.contact-info h2{text-align:left}
.contact-detail{margin-top:2rem}
.contact-detail .c-item{display:flex;gap:16px;margin-bottom:1.6rem}
.contact-detail .c-item .c-icon{width:50px;height:50px;background:rgba(255,196,0,0.1);border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.contact-detail .c-item .c-icon svg{width:22px;height:22px;color:var(--accent)}
.contact-detail .c-item h4{margin-bottom:3px;font-size:0.95rem}
.contact-detail .c-item p{color:var(--text-light);font-size:0.9rem}
.contact-form-box{background:var(--bg-white);padding:40px;border-radius:16px;border:1px solid var(--border);box-shadow:var(--shadow)}
.contact-form-box h3{margin-bottom:1.5rem}
.form-group{margin-bottom:1.2rem}
.form-group label{display:block;font-size:0.85rem;font-weight:600;margin-bottom:5px;color:var(--text-dark)}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:11px 16px;border:1px solid var(--border);border-radius:10px;font-size:0.9rem;transition:border-color 0.2s;font-family:inherit}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--accent)}
.form-group textarea{height:120px;resize:vertical}
.footer{background:var(--primary-dark);color:rgba(255,255,255,0.7);padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.footer h4{color:var(--bg-white);margin-bottom:1.2rem;font-size:0.95rem}
.footer p,.footer a{font-size:0.85rem;color:rgba(255,255,255,0.6)}
.footer a:hover{color:var(--accent)}
.footer-links li{margin-bottom:8px}
.footer-btm{border-top:1px solid rgba(255,255,255,0.08);margin-top:40px;padding-top:22px;text-align:center;font-size:0.8rem;color:rgba(255,255,255,0.4)}
.about-hero{position:relative;min-height:55vh;display:flex;align-items:center;overflow:hidden}
.timeline{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;margin:2rem 0}
.timeline-item{text-align:center;padding:28px 20px;background:var(--bg-white);border-radius:14px;border:1px solid var(--border)}
.timeline-item .year{font-size:1.5rem;font-weight:800;color:var(--accent);margin-bottom:0.4rem}
.timeline-item p{font-size:0.83rem;color:var(--text-light);margin:0}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:20px;margin:1.5rem 0}
.cert-grid .cert-item{text-align:center;padding:24px 16px;background:var(--bg-white);border-radius:14px;border:1px solid var(--border);transition:all 0.3s}
.cert-grid .cert-item:hover{border-color:var(--accent)}
.cert-grid .cert-item p{font-size:0.82rem;font-weight:600}
@media(max-width:768px){
  h1{font-size:2rem}
  h2{font-size:1.5rem}
  .hero{min-height:65vh}
  .hero-content h1{font-size:2rem}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .nav{display:none;flex-direction:column;position:absolute;top:80px;left:0;width:100%;background:var(--bg-white);padding:24px;box-shadow:0 15px 40px rgba(0,0,0,0.12);gap:16px}
  .nav.open{display:flex}
  .menu-toggle{display:block}
  .about-row{grid-template-columns:1fr}
  .prod-detail{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
}