*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}:root{--primary:#1a2a4a;--accent:#e8600a;--accent-dark:#c44f00;--light:#f5f7fa;--white:#fff;--text:#333;--text-light:#666;--border:#ddd;--shadow:0 2px 16px rgba(0,0,0,.10)}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);line-height:1.6;background:var(--white)}h1,h2,h3,h4{line-height:1.2}a{color:inherit}.container{max-width:1200px;margin:0 auto;padding:0 24px}header{position:fixed;top:0;left:0;right:0;background:var(--primary);z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.25)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}.logo{color:var(--white);text-decoration:none;font-size:1.5rem;font-weight:800;letter-spacing:1px}.logo span{color:var(--accent)}nav ul{list-style:none;display:flex;gap:32px}nav a{color:rgba(255,255,255,.82);text-decoration:none;font-size:.95rem;font-weight:500;transition:color .2s}nav a:hover,nav a.active{color:var(--accent)}.lang-li{margin-left:8px;border-left:1px solid rgba(255,255,255,.18);padding-left:20px}.lang-switch{font-size:.78rem!important;font-weight:700!important;border:1px solid rgba(255,255,255,.3);padding:3px 10px;border-radius:3px;letter-spacing:.5px}.lang-switch:hover{color:var(--white)!important;border-color:rgba(255,255,255,.65)}.btn{display:inline-block;padding:13px 30px;border-radius:4px;font-weight:600;font-size:.95rem;text-decoration:none;transition:all .2s;cursor:pointer;border:none;font-family:inherit}.btn-primary{background:var(--accent);color:var(--white)}.btn-primary:hover{background:var(--accent-dark)}.btn-outline{background:transparent;color:var(--white);border:2px solid 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p{color:var(--text-light);font-size:1rem;max-width:520px;margin:0 auto}.section-label{display:inline-block;color:var(--accent);font-size:.75rem;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;margin-bottom:10px}.about-strip{background:var(--light)}.about-grid{max-width:760px;margin:0 auto;text-align:center}.about-grid h2{font-size:2rem;color:var(--primary);margin-bottom:16px}.about-grid p{color:var(--text-light);margin-bottom:14px;line-height:1.75}.about-grid .btn{margin-top:8px}.springs-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:24px}.spring-card{border:1px solid var(--border);border-radius:8px;overflow:hidden;text-decoration:none;transition:box-shadow .2s , transform .2s;display:block}.spring-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.spring-card-image{background:var(--primary);aspect-ratio: 3/2;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.25);font-size:.82rem;overflow:hidden}.spring-card-image img{width:100%;height:100%;object-fit:cover;display:block}.spring-card-body{padding:20px}.spring-card-body h3{color:var(--primary);margin-bottom:8px;font-size:1.05rem}.spring-card-body p{color:var(--text-light);font-size:.88rem;line-height:1.65}.features-bg{background:var(--primary);color:var(--white)}.features-bg .section-header h2{color:var(--white)}.features-bg .section-header p{color:rgba(255,255,255,.65)}.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.feature-item{text-align:center;padding:32px 20px}.feature-icon{width:58px;height:58px;background:rgba(232,96,10,.18);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:1.4rem}.feature-item h3{margin-bottom:10px;font-size:1.05rem}.feature-item p{color:rgba(255,255,255,.65);font-size:.9rem}.cta-banner{background:var(--accent);padding:64px 0;text-align:center;color:var(--white)}.cta-banner h2{font-size:2rem;margin-bottom:12px}.cta-banner p{opacity:.9;margin-bottom:28px;font-size:1.05rem}.page-hero{margin-top:70px;padding:64px 0;background:var(--light);border-bottom:1px solid var(--border);text-align:center}.page-hero h1{font-size:2.4rem;color:var(--primary);margin-bottom:12px}.page-hero p{color:var(--text-light);font-size:1.05rem;max-width:540px;margin:0 auto}.page-hero-dark{margin-top:70px;padding:64px 0;background:var(--primary);color:var(--white);text-align:center}.page-hero-dark h1{font-size:2.4rem;margin-bottom:12px}.page-hero-dark p{opacity:.8;max-width:540px;margin:0 auto}.product-block{padding:80px 0;border-bottom:1px solid var(--border)}.product-block:nth-child(even) {background:var(--light)}.product-block-inner{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.product-block:nth-child(even) .product-image {order:2}.product-block:nth-child(even) .product-info  {order:1}.product-image{background:var(--primary);aspect-ratio: 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p{color:rgba(255,255,255,.65)}.materials-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:720px;margin:0 auto}.material-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:26px 22px}.material-card h3{margin-bottom:8px;font-size:1rem}.material-card p{color:rgba(255,255,255,.6);font-size:.87rem;line-height:1.65}.contact-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:60px;padding:80px 0}.contact-info-col h2{font-size:1.5rem;color:var(--primary);margin-bottom:28px}.contact-item{display:flex;gap:16px;margin-bottom:28px;align-items:flex-start}.contact-icon{width:44px;height:44px;background:rgba(232,96,10,.1);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:1.1rem;flex-shrink:0}.contact-item-text strong{display:block;color:var(--primary);margin-bottom:4px;font-size:.9rem}.contact-item-text span,.contact-item-text 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0}.blueprint-container{background:#0a1628;border-radius:10px;padding:24px;position:sticky;top:86px}.blueprint-container>h3{color:rgba(168,212,245,.6);font-size:.72rem;text-transform:uppercase;letter-spacing:2px;margin-bottom:14px}.blueprint-img{width:100%;border-radius:6px;display:none}.blueprint-img.active{display:block}.blueprint-placeholder{aspect-ratio: 5/3;background:#111f3a;border-radius:6px;display:flex;align-items:center;justify-content:center;color:rgba(168,212,245,.3);font-size:.88rem;text-align:center;padding:20px;border:1px dashed rgba(168,212,245,.15)}.blueprint-legend{margin-top:18px}.blueprint-legend h4{color:rgba(168,212,245,.45);font-size:.7rem;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:10px}.legend-grid{display:grid;grid-template-columns:1fr 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0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px}.footer-brand .logo{font-size:1.25rem;display:inline-block;margin-bottom:14px}.footer-brand p{font-size:.87rem;line-height:1.75;max-width:280px}.footer-col h4{color:var(--white);font-size:.78rem;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:16px}.footer-col ul{list-style:none}.footer-col ul li{margin-bottom:8px}.footer-col ul li a{color:rgba(255,255,255,.6);text-decoration:none;font-size:.87rem;transition:color .2s}.footer-col ul li a:hover{color:var(--accent)}.footer-col address{font-style:normal;font-size:.87rem;line-height:1.85}.footer-col address a{color:rgba(255,255,255,.6);text-decoration:none}.footer-col address a:hover{color:var(--accent)}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.8rem;color:rgba(255,255,255,.35)}.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}.nav-toggle span{display:block;width:24px;height:2px;background:var(--white);border-radius:2px}@media (max-width:960px){.springs-grid{grid-template-columns:repeat(3,1fr)}.features-grid{grid-template-columns:1fr 1fr}.product-block-inner,.contact-layout,.order-layout,.footer-grid{grid-template-columns:1fr;gap:32px}.product-block:nth-child(even) .product-image,
  .product-block:nth-child(even) .product-info {order:unset}.materials-grid{grid-template-columns:1fr}.blueprint-container{position:static}}@media (max-width:600px){.springs-grid{grid-template-columns:1fr 1fr}.features-grid,.materials-grid{grid-template-columns:1fr}.hero h1{font-size:2.1rem}.btn-outline{margin-left:0;margin-top:10px;display:block;width:fit-content}.form-grid{grid-template-columns:1fr}.nav-toggle{display:flex}nav ul{display:none;position:absolute;top:70px;left:0;right:0;background:var(--primary);flex-direction:column;gap:0;padding:12px 0;box-shadow:0 4px 12px rgba(0,0,0,.3)}nav ul.open{display:flex}nav ul li a{display:block;padding:12px 24px}.order-form-card{padding:24px 18px}}