.nav-lang{display:flex;align-items:center;gap:2px;margin-left:12px;padding-left:12px;border-left:1px solid var(--gray-300)}.lang-btn{padding:4px 8px;border-radius:4px;font-size:11px;font-weight:600;cursor:pointer;color:var(--gray-500);text-decoration:none}.lang-btn:hover{color:var(--primary);background:var(--primary-light)}.lang-btn.active{color:var(--accent);background:rgba(201,169,110,0.1)}/* CSS Reset & Variables */
:root{--primary:#1a365d;--primary-dark:#0f2440;--primary-light:#ebf4ff;--accent:#c9a96e;--accent-hover:#b8860b;--dark:#0a1628;--gray-50:#f8f9fa;--gray-100:#f1f3f5;--gray-200:#e9ecef;--gray-300:#dee2e6;--gray-400:#ced4da;--gray-500:#adb5bd;--gray-600:#6c757d;--gray-700:#495057;--gray-800:#343a40;--gray-900:#212529;--white:#ffffff;--success:#2d6a4f;--radius:8px;--radius-lg:16px;--shadow:0 2px 16px rgba(0,0,0,0.08);--shadow-lg:0 8px 40px rgba(0,0,0,0.12);--shadow-xl:0 16px 48px rgba(0,0,0,0.15);--transition:0.25s ease;--max-width:1200px}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;color:var(--gray-800);line-height:1.6;background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--gray-900)}
.display-1{font-size:clamp(32px,4vw,52px);font-weight:800}
.display-2{font-size:clamp(28px,3vw,40px);font-weight:700}
.heading-1{font-size:clamp(24px,2.5vw,36px);font-weight:700}
.heading-2{font-size:clamp(20px,2vw,28px);font-weight:700}
.heading-3{font-size:clamp(18px,1.5vw,24px);font-weight:600}
.text-muted{color:var(--gray-500)}
.text-center{text-align:center}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:var(--transition);text-decoration:none;line-height:1.4}
.btn-primary{background:var(--primary);color:var(--white)}
.btn-primary:hover{background:var(--primary-dark);color:var(--white);transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,82,160,0.3)}
.btn-accent{background:var(--accent);color:var(--white)}
.btn-accent:hover{background:var(--accent-hover);color:var(--white);transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:var(--white)}
.btn-white{background:var(--white);color:var(--primary)}
.btn-white:hover{background:var(--gray-100)}
.btn-lg{padding:16px 36px;font-size:16px}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-block{width:100%;justify-content:center}
.site-header{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)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;max-width:var(--max-width);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--gray-900);text-decoration:none}
.logo-icon{width:40px;height:40px;background:linear-gradient(135deg,#0a1628,#1a365d);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:white;font-size:18px;font-weight:700}
.logo span{color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none}
.nav-menu a{padding:8px 16px;border-radius:var(--radius);color:var(--gray-700);font-size:14px;font-weight:500;text-decoration:none;transition:var(--transition)}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary);background:var(--primary-light)}
.nav-cta{margin-left:16px}
.mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.mobile-toggle span{width:24px;height:2px;background:var(--gray-800);border-radius:2px;transition:var(--transition)}
.hero{padding:140px 0 80px;background:linear-gradient(135deg,#0a1628 0%,#1a365d 50%,#0f2440 100%);position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1}
.hero-content .hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:rgba(201,169,110,0.15);color:var(--accent);border-radius:20px;font-size:13px;font-weight:600;margin-bottom:20px}
.hero-content h1{margin-bottom:20px;color:var(--white)}
.hero-content p{color:rgba(255,255,255,0.7);margin-bottom:32px;max-width:540px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-stats{display:flex;gap:32px;margin-top:40px;padding-top:32px;border-top:1px solid rgba(255,255,255,0.1)}
.hero-stat h3{font-size:28px;color:var(--accent)}
.hero-stat p{font-size:13px;color:rgba(255,255,255,0.5);margin-bottom:0}
.hero-image{display:flex;align-items:center;justify-content:center}
.hero-image-card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);padding:32px;width:100%;max-width:500px}
.hero-image-card .product-showcase{background:linear-gradient(135deg,var(--gray-100),var(--gray-200));border-radius:var(--radius);height:280px;display:flex;align-items:center;justify-content:center;font-size:80px;color:var(--gray-400);margin-bottom:20px}
.hero-badges{display:flex;justify-content:center;gap:24px}
.hero-badges .badge{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:11px;color:var(--gray-500);font-weight:600;text-transform:uppercase;letter-spacing:0.5px}
.hero-badges .badge .badge-icon{width:40px;height:40px;background:var(--primary-light);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-size:18px}
.section{padding:80px 0}
.section-gray{background:var(--gray-50)}
.section-dark{background:var(--dark);color:var(--white)}
.section-dark h2,.section-dark h3{color:var(--white)}
.section-label{display:inline-block;padding:4px 12px;background:rgba(201,169,110,0.1);color:var(--accent);border-radius:20px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:16px}
.section-header{margin-bottom:48px}
.section-header h2{margin-bottom:12px}
.section-header p{color:var(--gray-500);max-width:600px;margin:0 auto}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.card{background:var(--white);border-radius:var(--radius-lg);border:1px solid var(--gray-200);padding:32px;transition:var(--transition)}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--gray-300)}
.card-icon{width:56px;height:56px;border-radius:var(--radius);background:linear-gradient(135deg,var(--primary-light),rgba(201,169,110,0.1));display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:20px;border:1px solid rgba(201,169,110,0.2)}
.card h3{margin-bottom:8px;font-size:18px}
.card p{color:var(--gray-600);font-size:14px;line-height:1.7}
.product-card{background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition)}
.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--gray-300)}
.product-card-image{height:220px;background:var(--gray-100);display:flex;align-items:center;justify-content:center;font-size:64px;color:var(--gray-400);position:relative}
.product-card-image .badge{position:absolute;top:12px;left:12px;padding:4px 10px;border-radius:4px;font-size:11px;font-weight:600}
.product-card-image .badge.hot{background:var(--accent);color:white}
.product-card-image .badge.new{background:var(--primary);color:white}
.product-card-body{padding:20px}
.product-card-body h3{font-size:16px;margin-bottom:4px}
.product-card-body .series{font-size:13px;color:var(--gray-500);margin-bottom:8px}
.product-card-body .specs{font-size:13px;color:var(--gray-600);line-height:1.6;margin-bottom:16px}
.product-card-footer{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-top:1px solid var(--gray-100)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center}
.stat-item .stat-number{font-size:42px;font-weight:800;color:var(--primary);line-height:1;margin-bottom:8px}
.stat-item .stat-label{font-size:14px;color:var(--gray-500)}
.section-dark .stat-item .stat-number{color:var(--white)}
.section-dark .stat-item .stat-label{color:var(--gray-400)}
.process-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:24px}
.process-step{text-align:center;padding:32px 20px}
.process-step .step-number{width:56px;height:56px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin:0 auto 16px}
.process-step h3{font-size:16px;margin-bottom:8px}
.process-step p{font-size:13px;color:var(--gray-600)}
.cert-grid{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;align-items:center}
.cert-item{display:flex;flex-direction:column;align-items:center;gap:8px}
.cert-item .cert-box{width:80px;height:80px;border-radius:var(--radius);background:var(--white);border:2px solid var(--gray-200);display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:700;color:var(--primary);transition:var(--transition)}
.cert-item:hover .cert-box{border-color:var(--primary);box-shadow:var(--shadow)}
.cert-item span{font-size:13px;font-weight:600;color:var(--gray-600)}
.testimonial-card{background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius-lg);padding:32px}
.testimonial-card .quote{font-size:15px;color:var(--gray-700);line-height:1.7;margin-bottom:20px;font-style:italic}
.testimonial-card .author{display:flex;align-items:center;gap:12px}
.testimonial-card .author .avatar{width:44px;height:44px;border-radius:50%;background:var(--gray-200);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;color:var(--gray-500)}
.testimonial-card .author .name{font-size:14px;font-weight:600}
.testimonial-card .author .role{font-size:12px;color:var(--gray-500)}
.cta-section{padding:80px 0;background:linear-gradient(135deg,#0a1628,#1a365d);color:var(--white);text-align:center}
.cta-section h2{color:var(--white);font-size:clamp(24px,3vw,36px);margin-bottom:16px}
.cta-section p{color:rgba(255,255,255,0.8);max-width:600px;margin:0 auto 32px;font-size:16px}
.site-footer{background:var(--gray-900);color:var(--gray-400);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.1)}
.footer-brand .logo{color:var(--white);margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.7;margin-bottom:20px}
.footer-social{display:flex;gap:12px}
.footer-social a{width:40px;height:40px;border-radius:var(--radius);background:rgba(255,255,255,0.1);display:flex;align-items:center;justify-content:center;color:var(--gray-400);font-size:18px;transition:var(--transition)}
.footer-social a:hover{background:var(--primary);color:white}
.footer-column h4{color:var(--white);font-size:15px;margin-bottom:20px}
.footer-column ul{list-style:none}
.footer-column li{margin-bottom:10px}
.footer-column a{color:var(--gray-400);font-size:14px;text-decoration:none}
.footer-column a:hover{color:var(--white)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:var(--gray-400)}
.footer-contact .fc-icon{width:20px;text-align:center;flex-shrink:0}
.footer-bottom{padding:20px 0;text-align:center;font-size:13px;color:var(--gray-500)}
.page-hero{padding:120px 0 60px;background:linear-gradient(135deg,var(--gray-50),var(--primary-light));text-align:center}
.page-hero h1{margin-bottom:12px}
.page-hero p{color:var(--gray-500);max-width:600px;margin:0 auto}
.category-tabs{display:flex;gap:8px;justify-content:center;margin-bottom:40px;flex-wrap:wrap}
.category-tab{padding:10px 24px;border-radius:24px;border:1px solid var(--gray-300);background:var(--white);color:var(--gray-700);font-size:14px;font-weight:500;cursor:pointer;transition:var(--transition)}
.category-tab:hover{border-color:var(--primary);color:var(--primary)}
.category-tab.active{background:var(--primary);color:white;border-color:var(--primary)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-image{border-radius:var(--radius-lg);overflow:hidden;height:400px;background:var(--gray-200);display:flex;align-items:center;justify-content:center;font-size:80px;color:var(--gray-400)}
.form-group{margin-bottom:20px}
.form-label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--gray-800)}
.form-control{width:100%;padding:12px 16px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:14px;color:var(--gray-800);background:var(--white);transition:var(--transition);outline:none;font-family:inherit}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,82,160,0.1)}
.form-control::placeholder{color:var(--gray-400)}
textarea.form-control{min-height:120px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.whatsapp-float{position:fixed;bottom:24px;right:24px;z-index:99;display:flex;align-items:center;gap:8px}
.whatsapp-float .whatsapp-btn{width:56px;height:56px;border-radius:50%;background:#25D366;color:white;border:none;font-size:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 16px rgba(37,211,102,0.3);transition:var(--transition);text-decoration:none}
.whatsapp-float .whatsapp-btn:hover{transform:scale(1.1)}
.whatsapp-float .whatsapp-tooltip{background:var(--white);padding:8px 16px;border-radius:var(--radius);box-shadow:var(--shadow-lg);font-size:13px;font-weight:500;white-space:nowrap;opacity:0;transition:var(--transition);pointer-events:none}
.whatsapp-float:hover .whatsapp-tooltip{opacity:1}
.nav-menu a{font-weight:600;letter-spacing:0.3px}
.nav-menu a:hover,.nav-menu a.active{color:var(--accent);background:rgba(201,169,110,0.08)}
.btn-primary{background:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);box-shadow:0 8px 24px rgba(26,54,93,0.3)}
.btn-accent{background:var(--accent);color:var(--white)}
.btn-accent:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-outline{color:var(--white);border-color:rgba(255,255,255,0.3)}
.btn-outline:hover{background:var(--white);color:var(--primary);border-color:var(--white)}
.display-1{letter-spacing:-1px}
.hero-image-card{border:1px solid rgba(201,169,110,0.15)}
.logo{font-weight:700;letter-spacing:-0.5px}
.logo span{color:var(--accent)}
.card{border:1px solid var(--gray-200)}
.card:hover{border-color:var(--accent);box-shadow:0 12px 40px rgba(201,169,110,0.08)}
.product-card{border:1px solid var(--gray-200)}
.product-card:hover{border-color:var(--accent);box-shadow:0 12px 40px rgba(0,0,0,0.1)}
.cta-section h2{letter-spacing:-0.5px}
footer a:hover{color:var(--accent)!important}
.footer-social a:hover{background:var(--accent)}
.testimonial-card{border:1px solid var(--gray-200)}
.whatsapp-float .whatsapp-btn{box-shadow:0 4px 20px rgba(37,211,102,0.4)}
@media(max-width:992px){.hero-grid{grid-template-columns:1fr}.hero-content{text-align:center}.hero-actions,.hero-stats{justify-content:center}.footer-grid{grid-template-columns:1fr 1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.header-inner{height:60px}.nav-menu{display:none}.mobile-toggle{display:flex}.nav-menu.open{display:flex;flex-direction:column;position:absolute;top:60px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--gray-200);padding:16px;box-shadow:var(--shadow)}.hero{padding:100px 0 60px}.section{padding:60px 0}.grid-2,.grid-3,.grid-4,.footer-grid,.form-row{grid-template-columns:1fr}}