/* ===================================================================
   GE Etching Machine — etchingmachine.org
   Modern responsive design system  |  mobile-first
   =================================================================== */

:root{
  --navy:#0a2540;
  --navy-2:#0d2f52;
  --blue:#1366d6;
  --blue-dark:#0a4aa8;
  --blue-soft:#e8f1fd;
  --accent:#f3920f;
  --accent-dark:#d97706;
  --ink:#0f1b2d;
  --text:#3a4a5e;
  --muted:#697a8c;
  --line:#e3eaf1;
  --bg:#f5f8fc;
  --bg-alt:#eaf1f8;
  --white:#ffffff;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 3px rgba(13,42,82,.08),0 1px 2px rgba(13,42,82,.04);
  --shadow:0 8px 24px rgba(13,42,82,.10);
  --shadow-lg:0 20px 48px rgba(13,42,82,.16);
  --container:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--text);
  background:var(--white);line-height:1.65;font-size:16px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none;transition:color .15s}
a:hover{color:var(--blue-dark)}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;margin:0 0 .5em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.25rem)}
h2{font-size:clamp(1.55rem,3.4vw,2.4rem)}
h3{font-size:1.2rem}
p{margin:0 0 1rem}
ul{margin:0 0 1rem;padding-left:1.2rem}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--tight{padding:52px 0}
.bg-alt{background:var(--bg)}
.bg-navy{background:var(--navy);color:#cdddee}
.bg-soft{background:linear-gradient(180deg,#f5f8fc 0%,#eaf1f8 100%)}
.text-center{text-align:center}
.mw-720{max-width:720px;margin-left:auto;margin-right:auto}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;justify-content:center;
  padding:.85rem 1.6rem;border-radius:var(--radius-sm);font-weight:700;
  font-size:.98rem;cursor:pointer;border:2px solid transparent;
  transition:transform .12s,box-shadow .15s,background .15s,color .15s;
  white-space:nowrap;line-height:1.1;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:#3a2400;box-shadow:0 6px 18px rgba(243,146,15,.35)}
.btn-primary:hover{background:var(--accent-dark);color:#fff}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(19,102,214,.3)}
.btn-blue:hover{background:var(--blue-dark);color:#fff}
.btn-outline{background:transparent;color:var(--blue);border-color:var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}
.btn-ghost-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost-light:hover{background:#fff;color:var(--navy)}
.btn-lg{padding:1.05rem 2rem;font-size:1.05rem}

/* ---------- Top utility bar ---------- */
.topbar{background:var(--navy);color:#aebfd1;font-size:.82rem}
.topbar .container{display:flex;justify-content:space-between;align-items:center;
  min-height:40px;gap:1rem;flex-wrap:wrap}
.topbar a{color:#cfe0f1}
.topbar a:hover{color:#fff}
.topbar .tb-left{display:flex;gap:1.4rem;flex-wrap:wrap;align-items:center}
.topbar .tb-item{display:inline-flex;align-items:center;gap:.4rem}
.topbar svg{width:14px;height:14px;fill:var(--accent);flex:none}
.topbar .tb-badge{color:#fff;font-weight:600}

/* ---------- Header / nav ---------- */
/* NOTE: no backdrop-filter/filter/transform here — any of those would make the header the
   containing block for the position:fixed mobile drawer (.nav-links), breaking its full-height
   slide-out. Keep the header background near-opaque instead. */
.site-header{position:sticky;top:0;z-index:50;background:#fff;
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:70px;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem;font-weight:800;color:var(--ink);
  font-size:1.15rem;letter-spacing:-.02em}
.brand:hover{color:var(--ink)}
.brand .logo{width:42px;height:42px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--blue),var(--navy));display:grid;place-items:center;
  color:#fff;font-weight:900;font-size:1.15rem;box-shadow:var(--shadow-sm)}
.brand small{display:block;font-size:.66rem;font-weight:600;color:var(--muted);
  letter-spacing:.06em;text-transform:uppercase}
.brand .bn{line-height:1.1}

.nav-links{display:flex;align-items:center;gap:.3rem;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--ink);font-weight:600;font-size:.95rem;padding:.55rem .85rem;
  border-radius:8px;display:block}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--blue-soft)}
.nav-cta{display:flex;align-items:center;gap:.6rem}
.nav-cta-mobile{display:none}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:.4rem;
  width:44px;height:44px;border-radius:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px auto;
  transition:.2s;border-radius:2px}

/* ---------- Hero ---------- */
.hero{position:relative;background:radial-gradient(1200px 600px at 80% -10%,#15407a 0%,transparent 60%),
  linear-gradient(135deg,#0a2540 0%,#0c365f 55%,#0a4aa8 130%);
  color:#e7f0fa;overflow:hidden}
.hero::after{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:46px 46px;mask-image:radial-gradient(1000px 500px at 75% 10%,#000,transparent 75%);
  pointer-events:none}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;
  gap:48px;align-items:center;padding-top:64px;padding-bottom:64px}
.hero .eyebrow{display:inline-flex;align-items:center;gap:.5rem;background:rgba(243,146,15,.16);
  color:#ffd9a3;border:1px solid rgba(243,146,15,.35);padding:.4rem .9rem;border-radius:999px;
  font-size:.8rem;font-weight:700;letter-spacing:.03em;margin-bottom:1.2rem;text-transform:uppercase}
.hero h1{color:#fff;margin-bottom:1rem}
.hero h1 .hl{color:var(--accent);position:relative}
.hero .lead{font-size:1.18rem;color:#bcd2e8;max-width:560px;margin-bottom:1.8rem}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:2rem}
.hero-stats{display:flex;gap:2rem;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.14);padding-top:1.5rem}
.hero-stats .num{font-size:1.9rem;font-weight:900;color:#fff;line-height:1}
.hero-stats .lbl{font-size:.82rem;color:#9fb6cd}
.hero-visual{position:relative}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:18px;padding:14px;box-shadow:var(--shadow-lg);backdrop-filter:blur(4px)}
.hero-card img{border-radius:12px;width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-badge{position:absolute;bottom:-18px;left:-18px;background:#fff;color:var(--ink);
  border-radius:14px;padding:.9rem 1.1rem;box-shadow:var(--shadow-lg);display:flex;
  align-items:center;gap:.7rem;font-weight:700;font-size:.9rem}
.hero-badge .dot{width:38px;height:38px;border-radius:10px;background:var(--blue-soft);
  display:grid;place-items:center;flex:none}
.hero-badge .dot svg{width:20px;height:20px;fill:var(--blue)}

/* ---------- Trust strip ---------- */
.trust{background:var(--white);border-bottom:1px solid var(--line)}
.trust .container{display:flex;align-items:center;justify-content:center;gap:2.5rem;
  flex-wrap:wrap;padding-top:22px;padding-bottom:22px;text-align:center}
.trust .t-item{display:flex;align-items:center;gap:.6rem;color:var(--muted);font-weight:600;font-size:.92rem}
.trust svg{width:22px;height:22px;fill:var(--blue);flex:none}

/* ---------- Section heading ---------- */
.sec-head{max-width:740px;margin:0 auto 48px}
.sec-head.left{margin-left:0;text-align:left}
.eyebrow-2{color:var(--blue);font-weight:800;font-size:.82rem;letter-spacing:.12em;
  text-transform:uppercase;display:block;margin-bottom:.6rem}
.sec-head p{color:var(--muted);font-size:1.08rem;margin-bottom:0}

/* ---------- Grid helpers ---------- */
.grid{display:grid;gap:24px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}

/* ---------- Category cards ---------- */
.cat-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s,border-color .18s;
  display:flex;flex-direction:column;height:100%}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfe0f4}
.cat-ico{width:56px;height:56px;border-radius:14px;background:var(--blue-soft);
  display:grid;place-items:center;margin-bottom:16px}
.cat-ico svg{width:28px;height:28px;fill:var(--blue)}
.cat-card h3{margin-bottom:.4rem;font-size:1.15rem}
.cat-card p{color:var(--muted);font-size:.94rem;margin-bottom:1rem;flex:1}
.cat-link{font-weight:700;font-size:.9rem;color:var(--blue);display:inline-flex;align-items:center;gap:.35rem}
.cat-link svg{width:16px;height:16px;fill:currentColor;transition:transform .15s}
.cat-card:hover .cat-link svg{transform:translateX(3px)}

/* ---------- Product / machine cards ---------- */
.prod-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .18s,box-shadow .18s;
  display:flex;flex-direction:column;height:100%}
.prod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.prod-media{aspect-ratio:4/3;background:#f0f5fa;overflow:hidden;position:relative}
.prod-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.prod-card:hover .prod-media img{transform:scale(1.06)}
.prod-tag{position:absolute;top:12px;left:12px;background:rgba(10,37,64,.85);color:#fff;
  font-size:.72rem;font-weight:700;padding:.3rem .7rem;border-radius:999px;letter-spacing:.03em}
.prod-body{padding:20px;display:flex;flex-direction:column;flex:1}
.prod-body h3{font-size:1.08rem;margin-bottom:.5rem}
.prod-body h3 a{color:var(--ink)}
.prod-body h3 a:hover{color:var(--blue)}
.specs{list-style:none;padding:0;margin:0 0 1rem;font-size:.86rem}
.specs li{display:flex;justify-content:space-between;gap:1rem;padding:.32rem 0;border-bottom:1px dashed var(--line);color:var(--text)}
.specs li:last-child{border-bottom:0}
.specs .k{color:var(--muted)}
.specs .v{font-weight:700;color:var(--ink);text-align:right}
.prod-foot{margin-top:auto}

/* ---------- Stats band ---------- */
.stats-band{background:linear-gradient(135deg,var(--navy) 0%,var(--blue-dark) 130%);color:#fff}
.stats-band .grid{text-align:center}
.stat .num{font-size:2.6rem;font-weight:900;color:#fff;line-height:1}
.stat .num span{color:var(--accent)}
.stat .lbl{color:#a9c2db;font-size:.95rem;margin-top:.3rem}

/* ---------- Applications ---------- */
.app-card{position:relative;border-radius:var(--radius);overflow:hidden;min-height:210px;
  box-shadow:var(--shadow-sm);display:flex;align-items:flex-end}
.app-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.app-card:hover img{transform:scale(1.08)}
.app-card::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,37,64,0) 35%,rgba(10,37,64,.88) 100%)}
.app-card .cap{position:relative;z-index:2;color:#fff;padding:18px 20px;font-weight:700;font-size:1.05rem}
.app-card .cap small{display:block;font-weight:500;opacity:.85;font-size:.8rem}

/* ---------- Process steps ---------- */
.steps{counter-reset:step;display:grid;gap:22px;grid-template-columns:repeat(4,1fr)}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;position:relative;box-shadow:var(--shadow-sm)}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);
  font-weight:900;font-size:1.4rem;color:var(--accent);display:block;margin-bottom:.5rem}
.step h3{font-size:1.05rem;margin-bottom:.3rem}
.step p{font-size:.9rem;color:var(--muted);margin:0}

/* ---------- Feature / why-us ---------- */
.feat{display:flex;gap:16px;align-items:flex-start}
.feat-ico{width:50px;height:50px;border-radius:12px;background:var(--blue-soft);flex:none;
  display:grid;place-items:center}
.feat-ico svg{width:26px;height:26px;fill:var(--blue)}
.feat h3{font-size:1.1rem;margin-bottom:.3rem}
.feat p{font-size:.94rem;color:var(--muted);margin:0}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-sm);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-q{width:100%;text-align:left;background:none;border:0;cursor:pointer;
  padding:20px 22px;font-size:1.05rem;font-weight:700;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:1rem;font-family:inherit}
.faq-q:hover{color:var(--blue)}
.faq-q .ico{flex:none;width:26px;height:26px;border-radius:50%;background:var(--blue-soft);
  display:grid;place-items:center;transition:transform .2s}
.faq-q .ico::before{content:"+";color:var(--blue);font-size:1.2rem;font-weight:700;line-height:1}
.faq-item.open .faq-q .ico{transform:rotate(45deg)}
.faq-a{padding:0 22px;max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease}
.faq-item.open .faq-a{padding:0 22px 20px;max-height:600px}
.faq-a p{color:var(--text);margin:0}

/* ---------- CTA band ---------- */
.cta-band{background:radial-gradient(900px 400px at 15% 20%,#15407a 0,transparent 60%),
  linear-gradient(135deg,var(--navy),var(--blue-dark));color:#fff;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#bcd2e8;font-size:1.1rem;max-width:600px;margin:0 auto 1.8rem}
.cta-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#9fb6cd;font-size:.92rem;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:1.1rem;letter-spacing:.02em}
.site-footer a{color:#9fb6cd;display:block;padding:.28rem 0}
.site-footer a:hover{color:#fff}
.footer-brand .brand{color:#fff;margin-bottom:1rem}
.footer-brand .brand small{color:#7e98b3}
.footer-brand p{color:#8aa2bb;font-size:.9rem;max-width:300px}
.foot-contact li{display:flex;gap:.6rem;align-items:flex-start;list-style:none;margin-bottom:.7rem}
.foot-contact{padding:0;margin:0}
.foot-contact svg{width:17px;height:17px;fill:var(--accent);flex:none;margin-top:3px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.84rem;color:#7e98b3}
.footer-bottom a{color:#9fb6cd;display:inline}

/* ---------- Page hero (inner) ---------- */
.page-hero{background:linear-gradient(135deg,var(--navy) 0%,#0c365f 100%);color:#e7f0fa;
  padding:56px 0 60px;position:relative;overflow:hidden}
.page-hero::after{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:44px 44px;
  mask-image:radial-gradient(800px 300px at 70% 0,#000,transparent 70%)}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;margin-bottom:.6rem}
.page-hero p{color:#bcd2e8;font-size:1.1rem;max-width:680px;margin:0}
.crumbs{display:flex;gap:.5rem;align-items:center;font-size:.85rem;color:#9fb6cd;margin-bottom:1rem;flex-wrap:wrap}
.crumbs a{color:#cfe0f1}
.crumbs a:hover{color:#fff}
.crumbs span{opacity:.6}

/* ---------- Prose / content ---------- */
.prose{max-width:780px;font-size:1.04rem}
.prose h2{margin-top:2rem}
.prose h3{margin-top:1.6rem;font-size:1.2rem}
.prose ul{padding-left:1.3rem}
.prose li{margin-bottom:.5rem}
.prose img{border-radius:var(--radius);margin:1.4rem 0;box-shadow:var(--shadow-sm)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:start}
.contact-info{background:var(--navy);color:#cdddee;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}
.contact-info h3{color:#fff}
.contact-info .ci{display:flex;gap:.9rem;align-items:flex-start;margin-bottom:1.3rem}
.contact-info .ci svg{width:20px;height:20px;fill:var(--accent);flex:none;margin-top:4px}
.contact-info .ci .k{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:#8aa2bb}
.contact-info .ci a{color:#fff}
.form-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow)}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:.9rem;color:var(--ink);margin-bottom:.4rem}
.field input,.field textarea,.field select{width:100%;padding:.8rem .9rem;border:1.5px solid var(--line);
  border-radius:10px;font-family:inherit;font-size:.98rem;color:var(--ink);background:#fbfdff;transition:border-color .15s,box-shadow .15s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(19,102,214,.14)}
.field textarea{min-height:130px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}

/* ---------- Utilities ---------- */
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.hide-mobile{display:initial}
.flex-center{display:flex;align-items:center;gap:.5rem}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width:980px){
  .hero .container{grid-template-columns:1fr;gap:36px;padding-top:48px;padding-bottom:54px}
  .hero-visual{max-width:520px}
  .g-4{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .contact-grid{grid-template-columns:1fr}
}
@media (max-width:1024px){
  .nav-toggle{display:block}
  .nav-cta-mobile{display:block}
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(82vw,340px);background:#fff;
    flex-direction:column;align-items:stretch;gap:.2rem;padding:84px 20px 30px;
    box-shadow:-12px 0 40px rgba(10,37,64,.2);transform:translateX(100%);
    transition:transform .28s ease;overflow-y:auto;z-index:60}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{padding:.85rem 1rem;font-size:1.05rem;border-radius:10px}
  .nav-links .nav-cta-mobile{margin-top:.8rem}
  .nav-cta .btn{display:none}
  /* Backdrop must sit BELOW the sticky header (z-50): the .nav-links drawer is trapped
     in the header's stacking context, so a higher backdrop would cover the open menu. */
  .nav-backdrop{position:fixed;inset:0;background:rgba(10,37,64,.45);opacity:0;visibility:hidden;
    transition:.25s;z-index:40}
  .nav-backdrop.open{opacity:1;visibility:visible}
  body.nav-open{overflow:hidden}
}
@media (max-width:640px){
  .section{padding:52px 0}
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero-stats{gap:1.4rem}
  .hero-stats .num{font-size:1.6rem}
  .stat .num{font-size:2.1rem}
  .topbar .tb-left .tb-hide{display:none}
  .trust .container{gap:1.2rem}
  .trust .t-item{font-size:.84rem;width:100%;justify-content:center}
  .hero-badge{left:50%;transform:translateX(-50%);bottom:-22px}
}