:root{
  --navy:#14314f; --navy2:#1e4f7a; --blue:#1e6fc2; --blue-light:#eaf2fb;
  --bg:#f4f6f8; --card:#ffffff; --text:#2c3e50; --muted:#5b6b7c; --border:#e2e8f0;
  --radius:10px; --shadow:0 6px 24px rgba(20,49,79,.08);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;color:var(--text);background:var(--bg);line-height:1.65;font-size:15px;}
img{max-width:100%;display:block;}
a{color:var(--blue);text-decoration:none;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}

/* topbar */
.topbar{background:#0e2436;color:#9fb8cd;font-size:12.5px;padding:8px 0;}
.topbar .container{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;}
.topbar a{color:#cfe0ee;}
.topbar a:hover{color:#fff;}
.topbar .tb-right{display:flex;gap:18px;}

/* nav */
.site-nav{position:sticky;top:0;z-index:100;background:var(--navy);box-shadow:0 2px 12px rgba(20,49,79,.3);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:66px;position:relative;}
.logo{color:#fff;font-weight:800;font-size:18px;letter-spacing:.3px;display:flex;align-items:center;gap:10px;line-height:1.15;}
.logo .logo-mark{width:36px;height:36px;border-radius:8px;background:linear-gradient(135deg,var(--blue),#2f8ae0);display:flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0;}
.logo small{display:block;font-size:10.5px;font-weight:500;color:#9dc6ee;letter-spacing:.6px;text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;}
.nav-links > li{position:relative;}
.nav-links > li > a{display:flex;align-items:center;gap:6px;color:#dfe9f4;font-size:14.5px;font-weight:500;padding:23px 13px;border-bottom:3px solid transparent;}
.nav-links > li > a:hover,.nav-links > li.active > a{color:#fff;border-bottom-color:var(--blue);}
.caret{font-size:9px;opacity:.75;transition:transform .15s;}
.nav-links > li:hover .caret{transform:rotate(180deg);}
.dropdown{position:absolute;top:100%;left:0;min-width:225px;background:#fff;border-radius:8px;box-shadow:0 14px 34px rgba(15,35,60,.2);padding:8px;display:none;z-index:300;}
.nav-links > li:hover .dropdown{display:block;}
.dropdown a{display:block;color:var(--text);font-size:13.5px;padding:9px 12px;border-radius:6px;border-left:3px solid transparent;}
.dropdown a:hover{background:var(--blue-light);color:var(--blue);border-left-color:var(--blue);}
.btn-quote{background:var(--blue);color:#fff;font-size:13.5px;font-weight:600;padding:9px 18px;border-radius:6px;border:none;cursor:pointer;white-space:nowrap;}
.btn-quote:hover{background:#1a5ea8;}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:24px;cursor:pointer;line-height:1;}

/* hero */
.hero{position:relative;color:#fff;background:linear-gradient(rgba(12,30,50,.86),rgba(16,42,68,.82)),url('../images/hero_1.jpg') center/cover no-repeat;padding:96px 0 84px;}
.hero .eyebrow{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:#bcd8f2;border:1px solid rgba(255,255,255,.28);padding:6px 14px;border-radius:999px;margin-bottom:20px;}
.hero h1{font-size:40px;line-height:1.22;font-weight:800;max-width:840px;margin-bottom:16px;}
.hero p{font-size:16.5px;color:#d9e5f2;max-width:760px;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.badge{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);padding:8px 14px;border-radius:6px;font-size:13.5px;font-weight:600;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn{display:inline-block;padding:13px 28px;border-radius:6px;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:all .15s;}
.btn-primary{background:var(--blue);color:#fff;}
.btn-primary:hover{background:#1a5ea8;}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6);}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-navy{background:var(--navy);color:#fff;}
.btn-navy:hover{background:var(--navy2);}

/* page hero (inner pages) */
.page-hero{background:linear-gradient(120deg,var(--navy) 0%,var(--navy2) 60%,var(--blue) 140%);color:#fff;padding:52px 0 46px;}
.page-hero h1{font-size:30px;font-weight:800;margin-bottom:8px;}
.page-hero p{color:#d5e2f0;max-width:720px;font-size:15px;}
.crumbs{font-size:13px;color:#9db8d2;margin-top:14px;}
.crumbs a{color:#cfe0ee;}
.crumbs a:hover{color:#fff;}
.crumbs .sep{margin:0 8px;opacity:.6;}

section{padding:70px 0;}
section.alt{background:var(--card);}
section.tint{background:#e9f0f7;}
.sec-head{max-width:760px;margin:0 auto 42px;text-align:center;}
.sec-head .tag{display:inline-block;color:var(--blue);font-size:12.5px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;margin-bottom:8px;}
.sec-head h2{font-size:29px;color:var(--navy);margin-bottom:10px;font-weight:800;}
.sec-head p{color:var(--muted);font-size:15px;}
.grid{display:grid;gap:22px;}
.cards-4{grid-template-columns:repeat(4,1fr);}
.cards-3{grid-template-columns:repeat(3,1fr);}
.cards-2{grid-template-columns:repeat(2,1fr);}

/* category cards */
.cat-card{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--card);box-shadow:var(--shadow);border:1px solid var(--border);transition:transform .18s,box-shadow .18s;}
.cat-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(20,49,79,.16);}
.cat-card img{width:100%;height:210px;object-fit:cover;}
.cat-card .cat-body{padding:18px 18px 20px;}
.cat-card h3{font-size:16.5px;color:var(--navy);margin-bottom:4px;}
.cat-card .cat-count{font-size:12.5px;color:var(--muted);margin-bottom:8px;}
.cat-card p{font-size:13px;color:var(--muted);margin-bottom:12px;min-height:38px;}
.cat-card .more{font-size:13.5px;font-weight:600;}

/* product cards */
.prod-grid{grid-template-columns:repeat(4,1fr);}
.prod-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s;}
.prod-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(20,49,79,.16);}
.prod-card .thumb{background:#fff;display:flex;align-items:center;justify-content:center;padding:14px;border-bottom:1px solid var(--border);}
.prod-card .thumb img{width:100%;height:190px;object-fit:contain;transition:transform .25s;}
.prod-card:hover .thumb img{transform:scale(1.04);}
.prod-card .p-body{padding:16px 16px 18px;display:flex;flex-direction:column;flex:1;}
.prod-card .p-cat{font-size:11.5px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--blue);margin-bottom:5px;}
.prod-card h3{font-size:16px;color:var(--navy);margin-bottom:4px;}
.prod-card .p-size{font-size:12.5px;color:var(--muted);margin-bottom:14px;}
.prod-card .p-actions{margin-top:auto;display:flex;gap:8px;}
.prod-card .btn{flex:1;text-align:center;font-size:13px;padding:10px 8px;}
.btn-sm{font-size:13px;padding:10px 12px;}

/* why cards */
.why-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);}
.why-card .icon{width:48px;height:48px;border-radius:9px;background:var(--blue-light);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px;}
.why-card h3{font-size:16.5px;color:var(--navy);margin-bottom:8px;}
.why-card p{font-size:13.5px;color:var(--muted);}

/* process steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px 18px;text-align:center;box-shadow:var(--shadow);}
.step .num{width:38px;height:38px;margin:0 auto 12px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;}
.step h4{font-size:14.5px;color:var(--navy);margin-bottom:6px;}
.step p{font-size:12.5px;color:var(--muted);}

/* factory gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.gallery img{width:100%;height:220px;object-fit:cover;border-radius:8px;border:1px solid var(--border);}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px;}
.stat{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px 18px;text-align:center;box-shadow:var(--shadow);}
.stat b{display:block;font-size:27px;color:var(--navy);font-weight:800;}
.stat span{font-size:13px;color:var(--muted);}

/* service rows */
.svc-row{display:grid;grid-template-columns:220px 1fr;gap:26px;align-items:start;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.svc-row .icon{font-size:34px;}
.svc-row h3{font-size:17px;color:var(--navy);margin-bottom:8px;}
.svc-row p{font-size:14px;color:var(--muted);}

/* CTA band */
.cta{background:linear-gradient(120deg,var(--navy) 0%,var(--blue) 140%);color:#fff;text-align:center;padding:58px 20px;}
.cta h2{font-size:27px;margin-bottom:10px;}
.cta p{color:#d9e5f2;margin-bottom:22px;max-width:680px;margin-left:auto;margin-right:auto;}

/* forms */
.form-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:34px;max-width:760px;margin:0 auto;}
.form-card h3{font-size:20px;color:var(--navy);margin-bottom:6px;}
.form-card .form-note{font-size:13px;color:var(--muted);margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--navy);}
.field input,.field select,.field textarea{border:1px solid #cbd6e2;border-radius:7px;padding:11px 13px;font-size:14px;font-family:inherit;color:var(--text);background:#fbfcfe;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(30,111,194,.14);}
.field textarea{min-height:110px;resize:vertical;}
.form-msg{display:none;background:#e8f5ec;border:1px solid #bfe3c9;color:#1e6b38;font-size:13.5px;padding:12px 14px;border-radius:7px;margin-bottom:16px;}
.form-msg.show{display:block;}

/* contact info */
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:44px;}
.ci-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);}
.ci-card .icon{font-size:26px;margin-bottom:10px;}
.ci-card h3{font-size:15px;color:var(--navy);margin-bottom:6px;}
.ci-card p,.ci-card a{font-size:13.5px;color:var(--muted);word-break:break-all;}
.ci-card a{color:var(--blue);}

/* news */
.news-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.news-card .date{font-size:12px;color:var(--muted);margin-bottom:8px;}
.news-card h3{font-size:16.5px;color:var(--navy);margin-bottom:8px;}
.news-card p{font-size:13.5px;color:var(--muted);}
.placeholder-badge{display:inline-block;background:#fff4e0;border:1px solid #f2d9a4;color:#9a6b13;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;margin-bottom:10px;}

/* detail page */
.detail-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start;}
.detail-img{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);position:sticky;top:90px;}
.detail-img img{width:100%;object-fit:contain;}
.detail-info h1{font-size:26px;color:var(--navy);margin-bottom:8px;}
.detail-info .p-cat{font-size:12.5px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--blue);margin-bottom:12px;}
.spec-table{width:100%;border-collapse:collapse;margin:18px 0 20px;background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;}
.spec-table th,.spec-table td{padding:11px 14px;font-size:13.5px;text-align:left;border-bottom:1px solid var(--border);}
.spec-table th{background:#f0f5fa;color:var(--navy);width:140px;font-weight:600;}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none;}
.feat-list{list-style:none;margin:0 0 22px;}
.feat-list li{position:relative;padding:7px 0 7px 26px;font-size:14px;color:var(--text);}
.feat-list li::before{content:"\2713";position:absolute;left:0;top:7px;color:var(--blue);font-weight:700;}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* filter bar */
.filter-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow);margin-bottom:28px;}
.filter-bar label{font-size:13.5px;font-weight:600;color:var(--navy);}
.filter-bar select{border:1px solid #cbd6e2;border-radius:7px;padding:9px 12px;font-size:13.5px;background:#fff;color:var(--text);min-width:220px;}
.chips{display:flex;gap:8px;flex-wrap:wrap;}
.chip{border:1px solid #cbd6e2;background:#fff;color:var(--text);font-size:12.5px;font-weight:600;padding:7px 14px;border-radius:999px;cursor:pointer;}
.chip.active{background:var(--navy);border-color:var(--navy);color:#fff;}
.prod-count{font-size:13px;color:var(--muted);margin-left:auto;}

/* footer */
.site-footer{background:#0e2436;color:#9fb8cd;padding:54px 0 0;font-size:13.5px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:38px;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;}
.site-footer a{color:#9fb8cd;}
.site-footer a:hover{color:#fff;}
.site-footer p{line-height:1.8;}
.footer-grid ul{list-style:none;}
.footer-grid li{margin-bottom:8px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:16px 0;text-align:center;font-size:12.5px;}
.footer-bottom .note{color:#7e95aa;margin-top:4px;}

/* responsive */
@media(max-width:1024px){
  .cards-4,.prod-grid{grid-template-columns:repeat(3,1fr);}
  .cards-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(3,1fr);}
}
@media(max-width:900px){
  .nav-toggle{display:block;}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy);flex-direction:column;align-items:stretch;gap:0;padding:8px 0 16px;max-height:calc(100vh - 66px);overflow-y:auto;box-shadow:0 20px 30px rgba(0,0,0,.25);}
  .nav-links.open{display:flex;}
  .nav-links > li{width:100%;}
  .nav-links > li > a{padding:13px 20px;border-bottom:1px solid rgba(255,255,255,.07);}
  .nav-links > li.active > a{border-bottom:1px solid rgba(255,255,255,.07);}
  .dropdown{position:static;display:none;box-shadow:none;border-radius:0;padding:0 0 4px;background:rgba(255,255,255,.06);min-width:0;}
  .nav-links > li.open .dropdown{display:block;}
  .dropdown a{color:#cfe0ee;padding:10px 34px;}
  .dropdown a:hover{background:rgba(255,255,255,.1);color:#fff;}
  .btn-quote{margin:12px 20px 4px;text-align:center;}
}
@media(max-width:768px){
  .hero{padding:64px 0 56px;}
  .hero h1{font-size:29px;}
  .cards-4,.prod-grid,.cards-3,.steps,.gallery,.stats,.contact-cards{grid-template-columns:repeat(2,1fr);}
  .detail-wrap{grid-template-columns:1fr;}
  .detail-img{position:static;}
  .svc-row{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:520px){
  .cards-4,.prod-grid,.cards-3,.steps,.gallery,.stats,.contact-cards{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;text-align:center;}
}

/* Social links */
.social-links{list-style:none;margin:0;padding:0}
.social-links li{margin:5px 0}
.social-links a{color:#9db3c8;text-decoration:none;font-size:14px;transition:color .2s}
.social-links a:hover{color:var(--blue);text-decoration:underline}
.social-inline{line-height:1.9}
.social-inline a{color:var(--blue);text-decoration:none}
.social-inline a:hover{text-decoration:underline}
.social-inline span{color:var(--border)}


/* news article pages */
.post-body{max-width:860px;margin:0 auto;}
.post-hero-img{border-radius:var(--radius);box-shadow:var(--shadow);margin:0 0 22px;}
.post-body h2{font-size:22px;color:var(--navy);margin:30px 0 12px;}
.post-body p{margin-bottom:14px;color:#3d4c5c;}
.post-body ul{margin:0 0 16px 20px;color:#3d4c5c;}
.post-body li{margin-bottom:6px;}
.post-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-top:12px;}
.post-date{color:var(--muted);font-size:13.5px;}
.post-tag{background:var(--blue-light);color:var(--navy);padding:3px 12px;border-radius:20px;font-size:12px;font-weight:600;}
.news-card{transition:transform .15s,box-shadow .15s;}
.news-card:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(20,49,79,.14);}
.news-card h3 a{color:inherit;}
.news-card h3 a:hover{color:var(--blue);}
.read-more{display:inline-block;margin-top:10px;font-weight:600;font-size:13.5px;color:var(--blue);}
.read-more:hover{text-decoration:underline;}

.form-msg.err{background:#fdecec;border-color:#f3c2c2;color:#b3261e;}