:root{
  --navy:#0B2136; --navy2:#132E47; --steel:#6B7A88; --line:#E2E6EA;
  --bg:#FFFFFF; --bg2:#F6F8FA; --accent:#E4552A; --accent-d:#C4441F;
  --text:#12181F; --muted:#5F6B78;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-weight:600;line-height:1.25;margin:0 0 12px;letter-spacing:-.01em}
h1{font-size:38px} h2{font-size:27px} h3{font-size:18px}
p{margin:0 0 14px}
.wrap{max-width:1220px;margin:0 auto;padding:0 24px}
.skip{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap}
.skip:focus{position:fixed;left:8px;top:8px;width:auto;height:auto;clip:auto;clip-path:none;background:#fff;padding:8px;z-index:99}
[dir="rtl"] .skip:focus{left:auto;right:8px}
.mono{font-family:var(--mono);font-size:.95em;letter-spacing:.01em}

/* top bar */
.topbar{background:var(--navy);color:#C4D0DB;font-size:12.5px;padding:8px 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.topbar a{color:#E6EDF3}
.topbar a:hover{color:#fff}
.tb-right{display:flex;gap:18px;flex-wrap:wrap}
.tb-hours{color:#7E8FA0}

/* header */
.hdr{position:sticky;top:0;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;gap:28px;height:68px}
.logo{font-size:21px;letter-spacing:.06em;display:flex;align-items:baseline;gap:2px}
.logo b{font-weight:700;color:var(--navy)}
.logo i{font-style:normal;font-weight:400;font-size:12px;color:var(--accent);letter-spacing:.18em;margin-left:6px}
.nav{display:flex;align-items:center;gap:26px;font-size:14.5px;flex:1}
.nav>a,.drop>a{color:#2B3A48;padding:6px 0;border-bottom:2px solid transparent}
.nav>a:hover,.drop>a:hover,.nav .on{color:var(--navy);border-bottom-color:var(--accent)}
.drop{position:relative}
.drop-menu{position:absolute;top:100%;left:-18px;background:#fff;border:1px solid var(--line);
  min-width:230px;padding:8px;display:none;box-shadow:0 12px 28px rgba(11,33,54,.08)}
.drop:hover .drop-menu{display:block}
.drop-menu a{display:block;padding:9px 12px;font-size:14px;color:#2B3A48}
.drop-menu a:hover{background:var(--bg2);color:var(--navy)}
.hdr-act{display:flex;align-items:center;gap:10px}
.icon-btn{background:none;border:1px solid var(--line);width:38px;height:38px;display:grid;place-items:center;
  cursor:pointer;color:var(--navy);border-radius:2px}
.icon-btn:hover{border-color:var(--steel)}
.menu-btn{display:none;background:none;border:1px solid var(--line);width:38px;height:38px;padding:9px;cursor:pointer}
.menu-btn span{display:block;height:2px;background:var(--navy);margin:3px 0}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;
  font-size:14.5px;font-weight:500;border:1px solid transparent;border-radius:2px;cursor:pointer;
  font-family:inherit;transition:.15s;white-space:nowrap}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-d)}
.btn-ghost{background:#fff;border-color:#CBD3DA;color:var(--navy)}
.btn-ghost:hover{border-color:var(--navy)}
.btn-block{width:100%;margin-top:8px}

/* search panel */
.searchpanel{background:var(--bg2);border-bottom:1px solid var(--line);padding:18px 0}
.searchform{display:flex;gap:8px}
.searchform input{flex:1;padding:13px 16px;border:1px solid #CBD3DA;font-size:15px;font-family:inherit;border-radius:2px}
.searchform input:focus{outline:2px solid rgba(228,85,42,.25);border-color:var(--accent)}
.sresults{margin-top:8px}
.sresults a{display:flex;justify-content:space-between;gap:16px;padding:11px 14px;background:#fff;
  border:1px solid var(--line);border-bottom:0;font-size:14px}
.sresults a:last-child{border-bottom:1px solid var(--line)}
.sresults a:hover{background:#fff8f5}
.sresults .mono{color:var(--navy);font-weight:600}
.sresults span{color:var(--muted)}

/* hero */
.hero{background:var(--navy);color:#fff;padding:64px 0 0;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 80px)}
.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:56px;padding-bottom:64px}
.kicker{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
  font-weight:600;margin:0 0 14px}
.hero h1{font-size:44px;color:#fff;margin-bottom:16px}
.hero-sub{color:#B9C7D4;font-size:16.5px;max-width:560px;margin-bottom:26px}
.hero-search{display:flex;gap:8px;max-width:560px}
.hero-search input{flex:1;padding:15px 18px;border:1px solid #2A4762;background:#0E273E;color:#fff;
  font-size:15px;font-family:inherit;border-radius:2px}
.hero-search input::placeholder{color:#7189A0}
.hero-search input:focus{outline:none;border-color:var(--accent)}
.hero-tags{font-size:13px;color:#7E93A6;margin-top:16px}
.hero-tags a{color:#C4D0DB;border-bottom:1px solid #3A5872;margin-left:8px}
.hero-tags a:hover{color:#fff;border-color:#fff}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:#25405A;align-self:start}
.hero-stats>div{background:#0E273E;padding:22px 20px}
.hero-stats b{display:block;font-size:26px;color:#fff;font-weight:600;letter-spacing:-.02em}
.hero-stats span{font-size:12.5px;color:#8FA4B6;display:block;margin-top:4px;line-height:1.4}

/* sections */
.sec{padding:66px 0}
.sec-alt{background:var(--bg2)}
.sec-dark{background:var(--navy);color:#fff}
.sec-dark h2{color:#fff}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px}
.sec-head h2{margin:0}
.link-more{font-size:14px;color:var(--navy);border-bottom:1px solid var(--accent);padding-bottom:2px;white-space:nowrap}
.h1-sm{font-size:32px}
.lead{font-size:16.5px;color:var(--muted);max-width:720px;margin-bottom:30px}

/* categories */
.catgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.catcard{border:1px solid var(--line);padding:24px;display:flex;flex-direction:column;gap:6px;
  background:#fff;transition:.15s;position:relative}
.catcard:hover{border-color:var(--navy);transform:translateY(-2px)}
.cat-ico img{width:40px;height:40px;opacity:.85}
.catcard b{font-size:16.5px;color:var(--navy);margin-top:8px}
.cat-n{font-size:12.5px;color:var(--accent);font-family:var(--mono)}
.catcard em{font-style:normal;font-size:13.5px;color:var(--muted);line-height:1.5;margin-top:2px}

/* product cards */
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{border:1px solid var(--line);background:#fff;display:flex;flex-direction:column;transition:.15s}
.card:hover{border-color:#B9C4CE}
.card-img{background:var(--bg2);aspect-ratio:4/3;display:block;overflow:hidden}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:5px;flex:1}
.pn{font-family:var(--mono);font-size:12.5px;color:var(--accent);font-weight:600;letter-spacing:.02em}
.card-name{font-size:14.5px;font-weight:500;color:var(--navy);line-height:1.35}
.card-name:hover{text-decoration:underline}
.card-meta{font-size:12.5px;color:var(--muted);margin:0;line-height:1.4}
.card-foot{margin-top:auto;padding-top:10px;display:flex;justify-content:space-between;align-items:baseline;
  border-top:1px solid var(--line)}
.card-foot b{font-size:14.5px;color:var(--navy)}
.card-foot span{font-size:11.5px;color:var(--muted)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.chips a,.chip{border:1px solid #CBD3DA;background:#fff;padding:8px 14px;font-size:13.5px;
  font-family:var(--mono);color:#2B3A48;cursor:pointer;border-radius:2px}
.chips a:hover,.chip:hover{border-color:var(--navy)}
.chip.on{background:var(--navy);color:#fff;border-color:var(--navy)}

/* why */
.why>div{border-top:2px solid var(--accent);padding-top:18px}
.why b{font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.1em}
.why h3{color:#fff;margin:8px 0 8px;font-size:16.5px}
.why p{color:#B9C7D4;font-size:14px;margin:0}

/* rfq */
.rfq{background:var(--bg2);border:1px solid var(--line);border-left:3px solid var(--accent);padding:26px 26px 22px}
.rfq h3{margin-bottom:6px}
.rfq-sub{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.rfq-form{display:flex;flex-direction:column;gap:12px}
.rfq-form label{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--muted);
  letter-spacing:.02em;text-transform:uppercase;font-weight:600}
.rfq-form input,.rfq-form textarea{padding:11px 12px;border:1px solid #CBD3DA;font-family:inherit;
  font-size:14.5px;border-radius:2px;background:#fff;color:var(--text);text-transform:none;letter-spacing:normal;font-weight:400}
.rfq-form input:focus,.rfq-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(228,85,42,.12)}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fbtns{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:4px}
.rfq-note{font-size:12px;color:var(--steel);margin:10px 0 0}
.two-col{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.side-info h3{margin-bottom:10px}
.side-info p{font-size:15px;color:#33414F}
.ticks{list-style:none;padding:0;margin:18px 0}
.ticks li{padding-left:24px;position:relative;font-size:14.5px;margin-bottom:10px;color:#33414F}
.ticks li:before{content:"";position:absolute;left:0;top:7px;width:9px;height:9px;
  border:2px solid var(--accent);transform:rotate(45deg)}
.micro{font-size:12px;color:var(--steel);line-height:1.6}

/* breadcrumbs */
.crumbs{border-bottom:1px solid var(--line);padding:14px 0;font-size:13px;color:var(--muted)}
.crumbs .wrap{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumbs a:hover{color:var(--navy);text-decoration:underline}
.crumbs b{color:var(--navy);font-weight:500}

/* toolbar */
.toolbar{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;margin-bottom:8px}
.toolbar .chips{margin-bottom:16px}
.inline-search{padding:10px 14px;border:1px solid #CBD3DA;font-family:var(--mono);font-size:13.5px;
  min-width:260px;border-radius:2px}
.inline-search:focus{outline:none;border-color:var(--accent)}
.empty{text-align:center;color:var(--muted);padding:40px 0}

/* pdp */
.pdp{padding-top:36px}
.pdp-grid{display:grid;grid-template-columns:1fr 380px;gap:44px;align-items:start}
.pdp-top{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:34px}
.pdp-img{border:1px solid var(--line);background:var(--bg2)}
.pdp-img img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#fff}
.pdp-head h1{font-size:26px;display:flex;flex-direction:column;gap:4px;margin-bottom:18px}
.pdp-head h1 span{font-size:18px;font-weight:400;color:var(--muted);letter-spacing:0}
table.spec{width:100%;border-collapse:collapse;font-size:13.5px;margin-bottom:18px}
table.spec th{text-align:left;font-weight:500;color:var(--muted);width:42%;padding:7px 0;vertical-align:top}
table.spec td{padding:7px 0;border-bottom:1px solid var(--line)}
.buybox{border:1px solid var(--line);padding:16px;background:var(--bg2)}
.price{display:flex;flex-direction:column;margin-bottom:12px}
.price b{font-size:24px;color:var(--navy);letter-spacing:-.02em}
.price span{font-size:12px;color:var(--muted)}
.prose{max-width:760px}
.prose h2,.pdp-main>h2{font-size:20px;margin:34px 0 12px;padding-top:18px;border-top:1px solid var(--line)}
.prose p{color:#33414F;font-size:15.5px}
.table{width:100%;border-collapse:collapse;font-size:14px;margin-bottom:8px}
.table th{background:var(--bg2);text-align:left;padding:10px 14px;font-weight:600;font-size:12px;
  text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-bottom:1px solid var(--line)}
.table td{padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.table tr:hover td{background:#FBFCFD}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{cursor:pointer;font-weight:500;color:var(--navy);font-size:15px;list-style:none;
  display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--accent);font-size:18px;line-height:1}
.faq details[open] summary:after{content:"\2013"}
.faq p{margin:10px 0 0;color:#33414F;font-size:14.5px}
.pdp-side{position:sticky;top:88px}

/* models */
.modelblock{margin-bottom:34px;scroll-margin-top:90px}
.modelblock h3{display:flex;justify-content:space-between;align-items:baseline;border-bottom:2px solid var(--navy);
  padding-bottom:8px;font-size:17px}
.modelblock h3 span{font-size:12px;color:var(--muted);font-family:var(--mono);font-weight:400}

/* about */
.narrow{max-width:820px}
.steps{padding-left:20px;color:#33414F}
.steps li{margin-bottom:12px}
.note{background:#FFF6F2;border:1px solid #F6D5C8;padding:14px 16px;font-size:13.5px;color:#8A3B1E;margin-top:24px}
.contact-list{list-style:none;padding:0;margin:0 0 8px}
.contact-list li{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px}
.contact-list span{color:var(--muted);font-size:13px;min-width:88px}
.contact-list a:hover{color:var(--accent)}

/* footer */
.ftr{background:var(--navy);color:#A9B8C6;padding:52px 0 0;font-size:14px}
.ftr-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.ftr-logo{font-size:19px;letter-spacing:.06em;color:#fff;margin-bottom:12px;font-weight:700}
.ftr-logo i{font-style:normal;font-size:11px;color:var(--accent);letter-spacing:.18em;margin-left:6px;font-weight:400}
.ftr-txt{font-size:13.5px;line-height:1.7;color:#93A5B5}
.ftr h4{color:#fff;font-size:12px;text-transform:uppercase;letter-spacing:.12em;margin-bottom:14px}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr li{margin-bottom:9px}
.ftr a:hover{color:#fff}
.ftr-btm{border-top:1px solid #23405A;padding:18px 0;display:flex;justify-content:space-between;gap:20px;
  flex-wrap:wrap;font-size:12px;color:#7E8FA0}

/* whatsapp */
.wa{position:fixed;right:20px;bottom:20px;width:52px;height:52px;border-radius:50%;background:#25D366;color:#fff;
  display:grid;place-items:center;z-index:60;box-shadow:0 4px 14px rgba(0,0,0,.18)}
.wa:hover{background:#1EBE5A}

/* responsive */
@media(max-width:1080px){
  .grid4{grid-template-columns:repeat(3,1fr)}
  .pdp-grid{grid-template-columns:1fr 330px;gap:30px}
  .hero h1{font-size:36px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .catgrid{grid-template-columns:repeat(2,1fr)}
  .ftr-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:820px){
  .nav,.topbar .tb-hours{display:none}
  .menu-btn{display:block}
  .nav.open{display:flex;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;
    align-items:stretch;padding:12px 24px;border-bottom:1px solid var(--line);gap:0}
  .nav.open>a,.nav.open .drop>a{padding:13px 0;border-bottom:1px solid var(--line)}
  .drop-menu{position:static;display:block;box-shadow:none;border:0;padding:0 0 0 12px;min-width:0}
  .grid4{grid-template-columns:repeat(2,1fr)}
  .two-col,.pdp-grid,.pdp-top{grid-template-columns:1fr}
  .pdp-side{position:static}
  .h1-sm{font-size:26px} h1{font-size:30px}
  .sec{padding:44px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px}
  .ftr-grid{grid-template-columns:1fr}
}
@media(max-width:540px){
  .grid4{grid-template-columns:1fr}
  .catgrid{grid-template-columns:1fr}
  .hero h1{font-size:27px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .frow,.fbtns{grid-template-columns:1fr}
  .hero-search,.searchform{flex-direction:column}
  .btn{width:100%}
  .hdr-act .btn{display:none}
}

/* ---------------------------------------------------------------- i18n */
/* per-language font stacks: keep system fonts, no webfont requests */
body[data-lang="zh"]{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif}
body[data-lang="ja"]{font-family:"Hiragino Sans","Yu Gothic","YuGothic","Noto Sans JP","Meiryo",system-ui,sans-serif}
body[data-lang="ar"]{font-family:"Segoe UI","Tahoma","Noto Naskh Arabic","Geeza Pro",system-ui,sans-serif}
body[data-lang="ru"]{font-family:"Segoe UI",Roboto,"PT Sans","Noto Sans",system-ui,sans-serif}

/* language selector */
.langsel{position:relative}
.langbtn{display:flex;align-items:center;gap:6px;height:38px;padding:0 10px;background:#fff;
  border:1px solid var(--line);border-radius:2px;cursor:pointer;font:inherit;font-size:12.5px;
  font-weight:600;color:var(--navy);letter-spacing:.05em}
.langbtn:hover{border-color:var(--steel)}
.langmenu{position:absolute;top:calc(100% + 6px);right:0;min-width:210px;background:#fff;
  border:1px solid var(--line);box-shadow:0 12px 28px rgba(11,33,54,.10);padding:6px;display:none;
  z-index:50;list-style:none;margin:0}
.langmenu.open{display:block}
.langmenu a{display:flex;align-items:center;gap:10px;padding:9px 10px;font-size:14px;color:#2B3A48}
.langmenu a b{font-family:var(--mono);font-size:10.5px;color:var(--steel);min-width:22px;letter-spacing:.06em}
.langmenu a:hover{background:var(--bg2);color:var(--navy)}
.langmenu a.on{background:#FFF6F2;color:var(--navy)}
.langmenu a.on b{color:var(--accent)}

/* footer language list */
.ftr-langs{margin-top:16px;font-size:12px}
.ftr-langs>span{display:block;color:#7E8FA0;margin-bottom:7px;text-transform:uppercase;letter-spacing:.1em;font-size:10.5px}
.ftr-langs ul{display:flex;flex-wrap:wrap;gap:4px 12px;list-style:none;padding:0;margin:0}
.ftr-langs li{margin:0}
.ftr-langs a{color:#A9B8C6;font-size:12.5px;white-space:nowrap}
.ftr-langs a:hover{color:#fff}
.ftr-langs a.on{color:#fff;border-bottom:1px solid var(--accent)}

/* Arabic typography: no letter-spacing, no uppercase */
[lang="ar"] .kicker,[lang="ar"] .ftr h4,[lang="ar"] .table th,[lang="ar"] .ftr-langs>span,
[lang="ar"] .rfq-form label,[lang="ar"] .why b,[lang="ar"] .logo,[lang="ar"] .ftr-logo,
[lang="ar"] .logo i,[lang="ar"] .ftr-logo i{letter-spacing:0;text-transform:none}
[lang="ar"] h1,[lang="ar"] h2,[lang="ar"] h3,[lang="ar"] h4{letter-spacing:0;line-height:1.4}
[lang="ar"] .hero h1{line-height:1.35}
[lang="ar"] .price b{letter-spacing:0}

/* RTL mirroring */
[dir="rtl"] .rfq{border-left:0;border-right:3px solid var(--accent)}
[dir="rtl"] .ticks li{padding-left:0;padding-right:24px}
[dir="rtl"] .ticks li:before{left:auto;right:0}
[dir="rtl"] .drop-menu{left:auto;right:-18px}
[dir="rtl"] .langmenu{right:auto;left:0}
[dir="rtl"] .wa{right:auto;left:20px}
[dir="rtl"] .table th,[dir="rtl"] table.spec th{text-align:right}
[dir="rtl"] .logo i,[dir="rtl"] .ftr-logo i{margin-left:0;margin-right:6px}
[dir="rtl"] .hero-tags a{margin-left:0;margin-right:8px}
[dir="rtl"] .contact-list span,[dir="rtl"] .rfq-form label{text-align:right}
[dir="rtl"] .faq summary{direction:rtl}
[dir="rtl"] .steps{padding-left:0;padding-right:20px}

@media(max-width:540px){
  .langbtn{padding:0 8px;gap:4px}
  .langbtn svg{width:14px;height:14px}
  .langmenu{min-width:190px}
}