:root{
  --navy:#071b33;
  --navy-2:#0b2848;
  --blue:#126be5;
  --cyan:#2bb9e7;
  --ink:#132234;
  --muted:#66758a;
  --line:#dce5ef;
  --soft:#f5f8fb;
  --white:#ffffff;
  --green:#0a8f72;
  --shadow:0 24px 70px rgba(7,27,51,.10);
  --radius:18px;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:#fff;
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
sub{font-size:.7em}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.section{padding:108px 0}
.section-soft{background:var(--soft)}
.section-dark{background:var(--navy);color:white}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--blue);
  margin-bottom:18px;
}
.eyebrow:before{content:"";width:28px;height:2px;background:currentColor}
.eyebrow.light{color:#62d4ff}
.section-heading{max-width:780px;margin-bottom:46px}
.section-heading h2,.quality-intro h2,.faq-heading h2,.rfq-copy h2,.tech-copy h2{
  margin:0 0 18px;font-size:clamp(34px,4.2vw,54px);line-height:1.08;letter-spacing:-.035em;
}
.section-heading p,.split-heading>p,.faq-heading>p,.rfq-copy>p,.tech-copy>p{
  margin:0;color:var(--muted);font-size:17px;line-height:1.75;
}
.split-heading{max-width:none;display:grid;grid-template-columns:1.35fr .65fr;gap:80px;align-items:end}
.split-heading>p{padding-bottom:8px}
.skip-link{position:fixed;left:12px;top:-80px;z-index:9999;background:#fff;padding:10px 14px;border-radius:8px}
.skip-link:focus{top:12px}

/* header */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);
  border-bottom:1px solid rgba(220,229,239,.85);backdrop-filter:blur(14px)
}
.header-inner{height:76px;display:flex;align-items:center;gap:30px}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:max-content}
.brand-logo{
  width:46px;
  height:46px;
  object-fit:contain;
  flex:0 0 auto;
  display:block;
}
.brand-footer .brand-logo{
  width:50px;
  height:50px;
}
@media (max-width:600px){
  .brand-logo{width:40px;height:40px}
}
.brand-copy{display:flex;flex-direction:column;line-height:1}
.brand-copy strong{letter-spacing:.12em;font-size:15px;color:var(--navy)}
.brand-copy small{margin-top:5px;letter-spacing:.18em;font-size:8px;color:#75859a}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:28px;font-size:14px;font-weight:650;color:#42536a}
.main-nav a:hover{color:var(--blue)}
.header-cta{
  padding:12px 18px;border-radius:11px;background:var(--navy);color:white;font-size:13px;font-weight:750;
  box-shadow:0 10px 25px rgba(7,27,51,.12)
}
.nav-toggle{display:none;background:none;border:0;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0}

/* hero */
.hero{
  position:relative;overflow:hidden;background:
  radial-gradient(circle at 87% 10%,rgba(43,185,231,.14),transparent 28%),
  linear-gradient(180deg,#fbfdff 0%,#f4f8fc 100%);
  border-bottom:1px solid var(--line);
}
.hero-gridline{
  pointer-events:none;position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(rgba(10,52,92,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(10,52,92,.04) 1px,transparent 1px);
  background-size:42px 42px;mask-image:linear-gradient(to bottom,#000,transparent 85%)
}
.hero-layout{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;min-height:710px;padding:76px 0 62px}
.hero-copy{position:relative;z-index:2}
.hero-copy h1{font-size:clamp(45px,5.1vw,72px);line-height:1.02;letter-spacing:-.052em;margin:0 0 24px;max-width:760px;color:var(--navy)}
.hero-lead{font-size:19px;line-height:1.7;color:#52647a;max-width:690px;margin:0 0 30px}
.hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:0 0 34px}
.hero-points>div{display:flex;gap:10px;border-top:1px solid #cad7e4;padding-top:14px}
.hero-points span{font-size:11px;font-weight:800;color:var(--blue)}
.hero-points p{margin:0;color:#607188;font-size:12.5px}
.hero-points b{display:block;color:var(--ink);font-size:13px;margin-bottom:3px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:12px;
  min-height:50px;padding:0 22px;font-weight:760;font-size:14px;transition:.2s ease
}
.btn-primary{background:linear-gradient(135deg,var(--blue),#0f5ecb);color:white;box-shadow:0 14px 30px rgba(18,107,229,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(18,107,229,.28)}
.btn-ghost{border:1px solid #bfd0e1;background:rgba(255,255,255,.72);color:var(--navy)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.btn-small{min-height:42px;padding:0 17px;font-size:13px}
.hero-visual{position:relative;min-height:540px;display:flex;align-items:center}
.hero-photo{
  position:absolute;right:-10%;width:110%;border-radius:36px 0 0 36px;overflow:hidden;
  box-shadow:0 35px 90px rgba(7,27,51,.16);background:#f7f8fb;
}
.hero-photo:after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(7,27,51,.08);border-radius:inherit}
.hero-photo img{width:100%;height:500px;object-fit:cover;object-position:center}
.hero-tag{
  position:absolute;z-index:3;background:rgba(7,27,51,.92);color:white;border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(8px);box-shadow:0 18px 40px rgba(7,27,51,.18)
}
.hero-tag-a{left:0;bottom:40px;padding:16px 18px;border-radius:14px;max-width:245px}
.hero-tag-a b{display:block;font-size:16px}
.hero-tag-a span{font-size:11px;color:#c9d8e9}
.hero-tag-b{right:-15px;top:54px;border-radius:14px;padding:14px 16px}
.hero-tag-b small{display:block;color:#9eb1c7;font-size:10px;margin-bottom:4px}
.hero-tag-b b{font-size:15px}
.hero-proof{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid #d7e1ec;color:#53647a;font-size:12px;font-weight:700;letter-spacing:.03em
}
.hero-proof span{padding:18px 20px;border-right:1px solid #d7e1ec}
.hero-proof span:first-child{padding-left:0}
.hero-proof span:last-child{border-right:0}

/* selection */
.gas-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
.gas-chip{
  border:1px solid #cdd9e5;background:#fff;color:#52647a;padding:10px 16px;border-radius:999px;font-weight:720;font-size:13px;
}
.gas-chip:hover,.gas-chip.active{background:var(--navy);border-color:var(--navy);color:white}
.selection-table-wrap{border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 16px 50px rgba(7,27,51,.05)}
.selection-table{width:100%;border-collapse:collapse;background:#fff}
.selection-table th{background:#0b2a4a;color:white;text-align:left;padding:18px 20px;font-size:12px;letter-spacing:.04em}
.selection-table td{padding:20px;border-top:1px solid #e5ecf3;color:#5d6d81;font-size:14px;vertical-align:top}
.selection-table td:first-child{color:var(--navy);font-size:16px}
.selection-table tr.filtered-out{display:none}
.center-action{text-align:center;margin-top:28px}
.text-link{display:inline-flex;align-items:center;gap:10px;color:var(--blue);font-weight:750}
.text-link span{transition:transform .2s}
.text-link:hover span{transform:translateX(4px)}

/* products */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.product-card{
  position:relative;background:#fff;border:1px solid #dfe7ef;border-radius:20px;overflow:hidden;
  transition:.25s ease;min-width:0
}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#c7d7e7}
.product-card.is-hidden{display:none}
.product-card.priority{border-color:#bdd4ef}
.product-badge{
  position:absolute;top:16px;left:16px;z-index:2;background:#eaf4ff;color:#0d5dbb;border:1px solid #bfdbf8;
  padding:7px 10px;border-radius:999px;font-size:10px;font-weight:850;letter-spacing:.06em
}
.product-img{height:245px;background:#ffffff;padding:18px;display:flex;align-items:center;justify-content:center}
.product-img img{width:100%;height:100%;object-fit:contain}
.product-body{padding:24px}
.product-code{font-size:11px;font-weight:850;letter-spacing:.13em;color:var(--blue);margin-bottom:8px}
.product-body h3{margin:0 0 11px;color:var(--navy);font-size:21px;line-height:1.25}
.product-body>p{min-height:66px;margin:0 0 18px;color:#66758a;font-size:14px}
.mini-specs{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid #e1e8ef;border-bottom:1px solid #e1e8ef;margin-bottom:18px}
.mini-specs span{padding:12px 8px 12px 0;font-size:12px;color:#66758a}
.mini-specs b{display:block;color:#22364d;margin-bottom:3px;font-size:11px}
.card-actions{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;align-items:center;font-size:12px;font-weight:720}
.card-actions a{color:#66758a}
.card-actions a:hover{color:var(--blue)}
.link-btn{border:0;background:none;padding:0;color:var(--blue);font-weight:760}
.source-note{font-size:11.5px;color:#78879a;margin:22px 0 0}

/* applications */
.application-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.application-card{border:1px solid var(--line);border-radius:18px;padding:24px 20px;background:#fff;min-height:300px}
.application-card:hover{border-color:#a9c8ea;box-shadow:0 14px 40px rgba(7,27,51,.06)}
.app-icon{
  width:48px;height:48px;border-radius:13px;background:#edf5fe;display:grid;place-items:center;margin-bottom:42px;color:var(--blue)
}
.app-icon svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.application-card>span{font-size:11px;color:var(--blue);font-weight:850;letter-spacing:.08em}
.application-card h3{margin:8px 0 12px;color:var(--navy);font-size:19px;line-height:1.25}
.application-card p{margin:0 0 17px;color:#66758a;font-size:13px}
.application-card small{color:#7b899a;font-size:11px}

/* technology */
.tech-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:70px;align-items:center}
.tech-copy h2{color:white}
.tech-copy>p{color:#b7c5d4}
.condition-list{margin-top:34px;display:grid;grid-template-columns:1fr 1fr;border-top:1px solid rgba(255,255,255,.12)}
.condition-list div{padding:17px 18px 17px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.condition-list div:nth-child(odd){border-right:1px solid rgba(255,255,255,.12);padding-right:18px}
.condition-list div:nth-child(even){padding-left:18px}
.condition-list b{display:block;color:white;font-size:13px;margin-bottom:5px}
.condition-list span{display:block;color:#9eb0c3;font-size:11.5px}
.principle-panel{
  position:relative;background:linear-gradient(180deg,#102d4d,#09213d);
  border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:24px;min-height:510px;overflow:hidden
}
.principle-panel:before{
  content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:34px 34px;mask-image:linear-gradient(to bottom,#000,transparent)
}
.principle-title{position:relative;display:flex;justify-content:space-between;gap:18px}
.principle-title span{font-size:10px;letter-spacing:.12em;color:#79d9fa;font-weight:800}
.principle-title b{font-size:12px;color:#d8e5ef;text-align:right}
.duct{
  position:relative;height:220px;margin:55px 20px 35px;border:2px solid rgba(255,255,255,.2);border-radius:24px;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
}
.duct:before,.duct:after{content:"";position:absolute;left:0;right:0;height:1px;background:rgba(255,255,255,.12)}
.duct:before{top:33%}.duct:after{top:66%}
.sensor{position:absolute;top:50%;transform:translateY(-50%);z-index:3;display:flex;align-items:center;gap:8px}
.sensor-left{left:-25px}.sensor-right{right:-25px;flex-direction:row-reverse}
.sensor span{width:58px;height:58px;border-radius:50%;border:7px solid #2f84ef;background:#0b1e33;box-shadow:0 0 0 8px rgba(47,132,239,.12)}
.sensor small{font-weight:850;color:#9acbff}
.laser-beam{position:absolute;left:45px;right:45px;top:50%;height:3px;background:#2bcaf3;box-shadow:0 0 18px #2bcaf3;transform:translateY(-50%)}
.gas-cloud{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:16px;z-index:2}
.gas-cloud i{font-style:normal;font-size:12px;padding:7px 10px;border-radius:999px;background:rgba(43,185,231,.12);border:1px solid rgba(43,185,231,.24);color:#9eeaff}
.gas-cloud i:nth-child(2){transform:translateY(-48px)}.gas-cloud i:nth-child(3){transform:translateY(42px)}
.principle-foot{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.principle-foot>div{border-top:1px solid rgba(255,255,255,.12);padding-top:13px}
.principle-foot span{font-size:10px;color:#5faddf;font-weight:800}
.principle-foot p{margin:4px 0 0;color:#aebed0;font-size:11.5px}

/* specs */
.spec-shell{display:grid;grid-template-columns:160px 1fr;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 20px 60px rgba(7,27,51,.06)}
.spec-tabs{background:#0a2949;padding:14px;display:flex;flex-direction:column;gap:8px}
.spec-tab{border:1px solid transparent;background:transparent;color:#bdd0e1;padding:13px;border-radius:10px;text-align:left;font-weight:750}
.spec-tab:hover,.spec-tab.active{background:#fff;color:var(--navy)}
.spec-panel{padding:30px 34px}
.spec-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.spec-head span{font-size:10px;color:var(--blue);font-weight:850;letter-spacing:.1em}
.spec-head h3{margin:5px 0 0;color:var(--navy);font-size:25px}
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);margin-top:6px}
.spec-item{display:grid;grid-template-columns:145px 1fr;gap:12px;padding:17px 0;border-bottom:1px solid #e3eaf1}
.spec-item:nth-child(odd){padding-right:26px;border-right:1px solid #e3eaf1}
.spec-item:nth-child(even){padding-left:26px}
.spec-item b{font-size:11px;color:#65758a}
.spec-item span{font-size:13px;color:#21364d}
.spec-condition{margin-top:22px;background:#f5f8fb;border-radius:14px;padding:17px 18px;font-size:12px;color:#5c6d82}
.spec-condition b{color:var(--navy)}

/* quality */
.quality-intro{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end;margin-bottom:38px}
.quality-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.quality-stats>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}
.quality-stats b{font-size:24px;color:var(--navy);display:block}
.quality-stats span{font-size:11px;color:#718096}
.quality-gallery{display:grid;grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:calc((100% - 42px)/4);gap:14px;width:100%;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scrollbar-width:none;padding-bottom:12px}
.quality-gallery::-webkit-scrollbar{display:none;width:0;height:0}
.quality-gallery figure{scroll-snap-align:start;min-width:0;margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.quality-gallery img{width:100%;height:auto;aspect-ratio:9/16;object-fit:contain;background:var(--soft)}
/* Crop the bottom label area on the three supplied portrait images. */
.quality-photo-crop{aspect-ratio:9/16;overflow:hidden;background:var(--soft)}
.quality-gallery .quality-photo-crop img{width:100%;height:105%;aspect-ratio:auto;object-fit:cover;object-position:center top}
.quality-gallery figcaption{padding:15px}
.quality-gallery b{display:block;font-size:12px;color:var(--navy)}
.quality-gallery span{display:block;font-size:11px;color:#718096;margin-top:4px}
.quality-process{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:28px;padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff;overflow:auto}
.quality-process span{font-size:11px;font-weight:720;white-space:nowrap;color:#4e6076}
.quality-process i{font-style:normal;color:#9aa9ba}

/* cases */
.delivery-flow{display:grid;grid-template-columns:repeat(6,1fr);margin-bottom:30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.delivery-flow div{padding:18px 15px;border-right:1px solid var(--line)}
.delivery-flow div:last-child{border-right:0}
.delivery-flow b{display:block;font-size:10px;color:var(--blue)}
.delivery-flow span{display:block;font-size:11px;color:#52647a;margin-top:6px}
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.case-card{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:white}
.case-record{height:230px;background:#edf2f6;overflow:hidden}
.case-record img{width:100%;height:100%;object-fit:cover;object-position:top}
.case-content{padding:25px}
.case-content>span{font-size:10px;color:var(--blue);font-weight:850;letter-spacing:.1em}
.case-content h3{font-size:24px;line-height:1.2;color:var(--navy);margin:8px 0 12px}
.case-content>p{font-size:13px;color:#66758a;margin:0 0 22px}
.case-metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.case-metrics>div{padding:15px 12px 0 0}
.case-metrics b{display:block;color:var(--navy);font-size:19px}
.case-metrics small{font-size:10px;color:#7b899a}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px}
.faq-heading{position:sticky;top:118px;align-self:start}
.faq-heading h2{font-size:42px}
.faq-heading .text-link{margin-top:26px}
.faq-list details{background:white;border:1px solid var(--line);border-radius:14px;margin-bottom:10px;padding:0 20px}
.faq-list summary{list-style:none;padding:19px 26px 19px 0;color:var(--navy);font-weight:760;cursor:pointer;position:relative}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary:after{content:"+";position:absolute;right:0;top:17px;color:var(--blue);font-size:22px;font-weight:400}
.faq-list details[open] summary:after{content:"–"}
.faq-list p{margin:0;padding:0 28px 20px 0;font-size:13px;color:#66758a}

/* RFQ */
.rfq{background:linear-gradient(135deg,#071b33,#0b2b4d);color:white}
.rfq-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:60px;align-items:start}
.rfq-copy{position:sticky;top:115px}
.rfq-copy h2{color:white;font-size:48px}
.rfq-copy>p{color:#b6c4d3}
.rfq-contact{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px;padding:20px 0;border-top:1px solid rgba(255,255,255,.14);border-bottom:1px solid rgba(255,255,255,.14)}
.rfq-contact small{display:block;color:#7fa3c2;font-size:10px;text-transform:uppercase;letter-spacing:.1em}
.rfq-contact a{display:block;color:white;font-size:13px;margin-top:5px}
.rfq-steps{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.rfq-steps span{font-size:10px;color:#9eb2c5;border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:7px 9px}
.rfq-form{background:white;color:var(--ink);border-radius:22px;padding:28px;box-shadow:0 35px 80px rgba(0,0,0,.16)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rfq-form label{display:block;margin-bottom:14px}
.rfq-form label>span{display:block;font-size:11px;font-weight:760;color:#45586f;margin-bottom:7px}
.rfq-form input,.rfq-form select,.rfq-form textarea{
  width:100%;border:1px solid #ccd9e5;border-radius:10px;padding:12px 13px;background:#fbfdff;color:#21364d;outline:none;
}
.rfq-form input:focus,.rfq-form select:focus,.rfq-form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(18,107,229,.08)}
.form-more{border:1px solid #d7e2ec;border-radius:12px;margin:0 0 14px;padding:0 14px;background:#f8fbfe}
.form-more summary{list-style:none;padding:13px 2px;font-size:12px;color:#35506c;font-weight:760;display:flex;justify-content:space-between}
.form-more summary::-webkit-details-marker{display:none}
.form-more[open] summary span{transform:rotate(45deg)}
.form-more-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px;border-top:1px solid #dfe7ef;padding-top:14px}
.form-full{grid-column:1/-1}
.file-help{display:block;color:#8a98a8;margin-top:5px;font-size:10px}
.check-line{display:flex!important;gap:9px;align-items:flex-start}
.check-line input{width:auto;margin-top:4px}
.check-line span{font-weight:500!important;line-height:1.5}
.btn-submit{width:100%}
.form-status{min-height:18px;margin-top:10px;font-size:12px;color:var(--green)}
.form-status.error{color:#b42318}

/* footer */
.site-footer{background:#041426;color:#8fa3b7;padding:58px 0 90px}
.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:50px}
.brand-footer .brand-copy strong{color:white}
.footer-grid>div:first-child p{max-width:410px;font-size:12px;line-height:1.75}
.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:9px}
.footer-grid b{color:#d6e2ec;font-size:12px;margin-bottom:5px}
.footer-grid a,.footer-grid span{font-size:11px}
.footer-grid a:hover{color:white}
.footer-bottom{margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.09);display:flex;justify-content:space-between;font-size:10px}
.floating-contact{position:fixed;right:18px;top:50%;transform:translateY(-50%);z-index:100;display:flex;flex-direction:column;gap:10px}
.floating-contact a{width:44px;height:44px;border-radius:12px;background:white;border:1px solid var(--line);display:grid;place-items:center;box-shadow:0 9px 25px rgba(7,27,51,.11)}
.floating-contact svg{width:20px;height:20px;fill:none;stroke:var(--navy);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.mobile-cta{display:none}
.quote-modal{position:fixed;inset:0;z-index:1200;display:none}
.quote-modal.is-open{display:block}
.quote-modal__backdrop{position:absolute;inset:0;background:rgba(7,27,51,.58);backdrop-filter:blur(4px)}
.quote-modal__card{position:relative;z-index:1;width:min(760px,calc(100% - 32px));--quote-modal-top:clamp(32px,8vh,72px);max-height:calc(100vh - var(--quote-modal-top) - 20px);max-height:calc(100dvh - var(--quote-modal-top) - 20px);overflow:auto;margin:var(--quote-modal-top) auto 20px;background:#fff;border-radius:22px;padding:26px;box-shadow:0 40px 120px rgba(0,0,0,.25)}
.quote-modal__close{position:absolute;right:14px;top:14px;border:0;background:#eef4fa;color:#27415c;width:36px;height:36px;border-radius:10px;font-size:26px;line-height:1}
.quote-modal__head h3{margin:0 0 10px;color:var(--navy);font-size:32px;line-height:1.1}
.quote-modal__head p{margin:0 0 20px;color:#6a7b8f;font-size:14px;line-height:1.7;max-width:620px}
.quote-modal__form input,.quote-modal__form select,.quote-modal__form textarea{width:100%;border:1px solid #ccd9e5;border-radius:10px;padding:12px 13px;background:#fbfdff;color:#21364d;outline:none}
.quote-modal__form input:focus,.quote-modal__form select:focus,.quote-modal__form textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(18,107,229,.08)}
body.modal-open{overflow:hidden}


/* reveal */
.tdlas-motion-ready .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.tdlas-motion-ready .reveal.is-visible{opacity:1;transform:none}

/* responsive */
@media (max-width:1100px){
  .main-nav{gap:18px}
  .hero-layout{grid-template-columns:1fr;min-height:auto;padding-top:72px}
  .hero-visual{min-height:430px}
  .hero-photo{position:relative;right:auto;width:100%;border-radius:26px}
  .hero-photo img{height:420px}
  .hero-tag-a{left:18px}.hero-tag-b{right:18px}
  .hero-proof{grid-template-columns:1fr 1fr}
  .hero-proof span:nth-child(2){border-right:0}
  .hero-proof span:nth-child(n+3){border-top:1px solid #d7e1ec}
  .product-grid{grid-template-columns:1fr 1fr}
  .application-grid{grid-template-columns:repeat(3,1fr)}
  .tech-layout{grid-template-columns:1fr;gap:40px}
  .quality-gallery{grid-auto-columns:calc((100% - 28px)/3)}
  .delivery-flow{grid-template-columns:repeat(3,1fr)}
  .delivery-flow div:nth-child(3){border-right:0}
  .delivery-flow div:nth-child(n+4){border-top:1px solid var(--line)}
  .rfq-layout{grid-template-columns:1fr}
  .rfq-copy{position:relative;top:auto}
}
@media (max-width:860px){
  .container{width:min(var(--container),calc(100% - 32px))}
  .section{padding:82px 0}
  .header-inner{height:66px}
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:block;margin-left:auto}
  .main-nav.open{
    display:flex;position:absolute;left:16px;right:16px;top:70px;background:white;border:1px solid var(--line);border-radius:14px;
    padding:18px;flex-direction:column;align-items:flex-start;box-shadow:var(--shadow)
  }
  .hero-layout{padding-top:58px;gap:30px}
  .hero-copy h1{font-size:46px}
  .hero-points{grid-template-columns:1fr}
  .hero-visual{min-height:350px}
  .hero-photo img{height:330px}
  .split-heading,.quality-intro,.faq-layout{grid-template-columns:1fr;gap:28px}
  .faq-heading{position:relative;top:auto}
  .application-grid{grid-template-columns:1fr 1fr}
  .spec-shell{grid-template-columns:1fr}
  .spec-tabs{flex-direction:row;overflow:auto}
  .spec-tab{white-space:nowrap}
  .spec-grid{grid-template-columns:1fr}
  .spec-item:nth-child(odd),.spec-item:nth-child(even){padding:15px 0;border-right:0}
  .case-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .floating-contact{display:none}
  .quote-modal__card{padding:22px 16px}
  .quote-modal__head h3{font-size:26px}
  .mobile-cta{display:block;position:fixed;z-index:90;left:12px;right:12px;bottom:10px}
  .mobile-cta a{display:flex;justify-content:center;align-items:center;height:48px;border-radius:12px;background:var(--blue);color:white;font-size:13px;font-weight:800;box-shadow:0 14px 35px rgba(18,107,229,.28)}
}
@media (max-width:600px){
  .section{padding:70px 0}
  .section-heading h2,.quality-intro h2,.faq-heading h2,.rfq-copy h2,.tech-copy h2{font-size:34px}
  .hero-copy h1{font-size:40px}
  .hero-lead{font-size:16px}
  .hero-photo img{height:280px}
  .hero-tag-b{top:16px}
  .hero-tag-a{bottom:18px}
  .hero-proof{grid-template-columns:1fr}
  .hero-proof span{border-right:0;border-top:1px solid #d7e1ec!important;padding-left:0}
  .product-grid,.application-grid{grid-template-columns:1fr}
  .quality-gallery{grid-auto-columns:84%}
  .selection-table{min-width:760px}
  .selection-table-wrap{overflow:auto}
  .condition-list{grid-template-columns:1fr}
  .condition-list div:nth-child(odd){border-right:0;padding-right:0}
  .condition-list div:nth-child(even){padding-left:0}
  .principle-panel{padding:18px}
  .principle-title{display:block}
  .principle-title b{display:block;text-align:left;margin-top:5px}
  .duct{margin:44px 12px 28px;height:190px}
  .principle-foot{grid-template-columns:1fr}
  .spec-panel{padding:22px 18px}
  .spec-head{align-items:flex-start;flex-direction:column}
  .spec-item{grid-template-columns:1fr}
  .quality-stats{grid-template-columns:1fr}
  .quality-process{justify-content:flex-start}
  .delivery-flow{grid-template-columns:1fr 1fr}
  .delivery-flow div:nth-child(2n){border-right:0}
  .delivery-flow div:nth-child(n+3){border-top:1px solid var(--line)}
  .case-record{height:190px}
  .case-metrics{grid-template-columns:1fr}
  .case-metrics>div{padding:12px 0;border-top:1px solid var(--line)}
  .case-metrics>div:first-child{border-top:0}
  .rfq-form{padding:20px 16px}
  .form-row,.form-more-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{gap:14px;flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .tdlas-motion-ready .reveal{opacity:1;transform:none;transition:none}
  .btn-primary:hover,.product-card:hover{transform:none}
}


/* Manufacturing photo gallery controls and full-size preview. */
.quality-gallery-toolbar{display:flex;align-items:center;justify-content:flex-end;gap:16px;margin-bottom:16px}
.quality-gallery-hint{margin:0;font-size:12px;color:#5d6d81}
.quality-gallery-controls{display:flex;align-items:center;gap:10px;flex-shrink:0}
.quality-gallery-count{min-width:64px;text-align:center;font-size:12px;font-variant-numeric:tabular-nums;color:var(--navy)}
.quality-arrow{display:inline-grid;place-items:center;min-width:42px;height:42px;padding:0 12px;border:1px solid #bdcddd;border-radius:8px;background:white;color:var(--navy);font-size:22px;cursor:pointer}
.quality-arrow:hover:not(:disabled){background:#eaf2fa;border-color:var(--blue)}
.quality-arrow:disabled{opacity:.35;cursor:default}
.quality-photo-button{display:block;width:100%;padding:0;border:0;border-radius:0;background:var(--soft);cursor:zoom-in;text-align:inherit}
.quality-photo-button img{display:block}
.quality-photo-button[data-quality-photo="0"] img{object-fit:cover;object-position:center}
.quality-photo-button:focus-visible{outline:3px solid var(--blue);outline-offset:-3px}
.quality-gallery:focus-visible,.quality-arrow:focus-visible,.quality-lightbox-close:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.quality-lightbox{width:min(1000px,calc(100% - 32px));max-height:calc(100dvh - 32px);padding:18px;border:0;border-radius:14px;color:var(--navy);background:#fff;overflow:auto}
.quality-lightbox::backdrop{background:rgba(4,20,38,.88)}
.quality-lightbox-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}
.quality-lightbox-head h3{margin:0;font-size:16px;line-height:1.4}
.quality-lightbox-close{height:42px;padding:0 14px;border:1px solid #bdcddd;border-radius:8px;background:#fff;color:var(--navy);cursor:pointer}
.quality-lightbox-image{display:block;width:100%;height:min(70dvh,780px);object-fit:contain;background:var(--soft)}
.quality-lightbox-image[hidden]{display:none}
.quality-lightbox-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:12px}
.quality-lightbox-caption{margin:0;font-size:12px;color:#5d6d81}
.quality-lightbox-status{font-size:13px;color:#5d6d81}
body.quality-preview-open{overflow:hidden}
@media(max-width:640px){.quality-gallery-toolbar{align-items:center;gap:8px}.quality-gallery-hint{max-width:145px;line-height:1.5}.quality-gallery-controls{gap:6px}.quality-arrow{min-width:40px;padding:0 8px}.quality-lightbox{padding:12px}.quality-lightbox-foot{align-items:flex-start;flex-direction:column}.quality-lightbox-image{height:62dvh}}