:root{--acc:#0E7DC2;--acc2:#35C3F1;--accD:#1668C4;--ink:#0C1A24;--ink2:#45596A;--paper:#F2F5F6;--line:#D8E0E6;--ok:#2F7D5B;--pend:#A3771E;--bad:#A02F35;--card:#FFFFFF;--rad:14px;--shadow:0 10px 30px rgba(12,26,36,.08)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'IBM Plex Sans','Segoe UI',system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--paper);line-height:1.65;font-size:16px}
h1,h2,h3,h4{font-family:'Space Grotesk','IBM Plex Sans',sans-serif;line-height:1.15;letter-spacing:-.01em}
a{color:var(--acc);text-decoration:none}
img{display:block;max-width:100%}
code,.mono{font-family:'IBM Plex Mono',Consolas,monospace}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
/* nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:26px;height:66px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand img{width:38px;height:38px}
.brand .bt{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:17px;letter-spacing:.04em}
.brand .bt small{display:block;font-weight:500;font-size:10px;letter-spacing:.22em;color:var(--ink2)}
.nav-links{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav-links a{color:var(--ink2);font-size:14.5px;font-weight:500}
.nav-links a:hover{color:var(--acc)}
.nav-cta{background:linear-gradient(135deg,var(--acc2),var(--accD));color:#fff !important;padding:9px 18px;border-radius:10px;font-size:14px !important;box-shadow:0 4px 14px rgba(22,104,196,.3)}
@media(max-width:880px){.nav-links a:not(.nav-cta){display:none}}
/* buttons */
.btn{display:inline-block;background:linear-gradient(135deg,var(--acc2),var(--accD));color:#fff;padding:13px 26px;border-radius:11px;font-weight:600;font-size:15px;border:none;cursor:pointer;box-shadow:0 6px 18px rgba(22,104,196,.28);transition:transform .15s}
.btn:hover{transform:translateY(-2px)}
.btn.ghost{background:none;color:var(--acc);box-shadow:none;border:1.5px solid var(--acc)}
/* chips & tags */
.tag{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:6px;background:#E3F1FA;color:var(--acc)}
.tag.ok{background:#E4F2EB;color:var(--ok)}
.tag.pend{background:#F7EEDA;color:var(--pend)}
.tag.dark{background:var(--ink);color:#fff}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}
.chip{border:1.5px solid var(--line);background:#fff;border-radius:999px;padding:8px 18px;font-size:14px;color:var(--ink2);cursor:pointer;font-weight:500}
.chip:hover{border-color:var(--acc);color:var(--acc)}
.chip.on{background:linear-gradient(135deg,var(--acc2),var(--accD));border-color:transparent;color:#fff}
/* grids */
.g4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:980px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.g4,.g3,.g2{grid-template-columns:1fr}}
/* cards */
.card{background:var(--card);border-radius:var(--rad);border:1px solid var(--line);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.card h3{font-size:19px}
.card .mono{font-size:12.5px;color:var(--acc);letter-spacing:.06em}
.card p{color:var(--ink2);font-size:14.5px}
.card .cimg{border-radius:10px;overflow:hidden;margin-bottom:4px;border:1px solid var(--line)}
.card .cimg img{width:100%;height:170px;object-fit:cover}
.card .grow{flex:1}
.card .more{font-size:14px;font-weight:600}
/* section head */
.sh{margin:70px 0 30px}
.sh .kicker{font-family:'IBM Plex Mono',monospace;font-size:12.5px;letter-spacing:.14em;color:var(--acc);text-transform:uppercase}
.sh h2{font-size:34px;margin:6px 0 10px}
.sh .lead{color:var(--ink2);max-width:720px;font-size:16.5px}
/* hero */
.hero{position:relative;background:#081420;color:#fff;overflow:hidden}
.hero .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5}
.hero .veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,20,32,.96) 30%,rgba(8,20,32,.66) 70%,rgba(8,20,32,.4))}
.hero-in{position:relative;padding:96px 0 76px;max-width:860px}
.hero .tagline{font-family:'IBM Plex Mono',monospace;font-size:13px;letter-spacing:.18em;color:var(--acc2);text-transform:uppercase;margin-bottom:16px}
.hero h1{font-size:50px;margin-bottom:18px}
.hero p.lead{font-size:18px;color:#C6D4DE;max-width:700px;margin-bottom:26px}
.hero .stats{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.hero .stat{background:rgba(53,195,241,.1);border:1px solid rgba(53,195,241,.35);border-radius:10px;padding:8px 16px;font-size:13.5px;color:#BFE7F9}
.hero .stat b{color:var(--acc2)}
@media(max-width:640px){.hero h1{font-size:34px}}
/* stats band */
.band{background:var(--ink);color:#fff}
.band .g4{gap:0}
.band .b{padding:34px 26px;text-align:center}
.band .b .n{font-family:'Space Grotesk',sans-serif;font-size:36px;font-weight:700;color:var(--acc2)}
.band .b .l{font-size:13px;color:#9FB2BF;letter-spacing:.05em}
/* product page */
.crumb{font-size:13.5px;color:var(--ink2);margin:34px 0 18px}
.crumb a{color:var(--acc)}
.crumb b{color:var(--ink)}
.pd{display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:start;margin-bottom:44px}
@media(max-width:900px){.pd{grid-template-columns:1fr}}
.pd h1{font-size:38px;margin:8px 0 14px}
.pd .mono{color:var(--acc)}
.pd .akas{font-size:13.5px;color:var(--ink2);margin-bottom:16px}
.spec-t{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow);font-size:14px}
.spec-t th{background:var(--ink);color:#fff;text-align:left;padding:12px 16px;font-family:'Space Grotesk',sans-serif;font-size:14px}
.spec-t td{padding:11px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.spec-t td:first-child{color:var(--ink2);white-space:nowrap;width:42%}
.spec-t tr:last-child td{border-bottom:none}
.pd-img{border-radius:14px;overflow:hidden;border:1px solid var(--line);position:sticky;top:88px}
.pd-img img{width:100%;height:420px;object-fit:cover}
.pd-img figcaption{background:#fff;padding:12px 16px;font-size:12.5px;color:var(--ink2)}
.pd-secs .sec{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 26px;margin-bottom:16px}
.pd-secs .sec h3{font-size:16px;margin-bottom:10px;color:var(--acc)}
.pd-secs .sec ul{padding-left:20px;color:var(--ink2);font-size:14.5px}
.pd-secs .sec li{margin:5px 0}
/* manual */
.man-ch{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:22px;overflow:hidden}
.man-ch>h3{background:#F6F9FB;border-bottom:1px solid var(--line);padding:15px 22px;font-size:17px}
.man-ch>h3 .mono{color:var(--acc);font-size:12px;margin-right:10px}
.man-ch .defs{padding:8px 22px 16px}
.man-ch .def{padding:11px 0;border-bottom:1px dashed var(--line)}
.man-ch .def:last-child{border-bottom:none}
.man-ch .def .t{font-weight:600;font-size:15px}
.man-ch .def .t .mono{color:var(--acc);font-size:12px;margin-left:8px}
.man-ch .def .al{font-size:12.5px;color:var(--pend);margin:2px 0}
.man-ch .def .d{font-size:14px;color:var(--ink2)}
/* news */
.news-card{display:flex;flex-direction:column}
.news-card .date{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--acc);letter-spacing:.08em}
.article{max-width:820px;margin:0 auto}
.article .meta{display:flex;gap:12px;align-items:center;margin:16px 0 26px}
.article h1{font-size:38px;margin-top:10px}
.article .body p{margin:16px 0;color:#2A3B47;font-size:16.5px}
.article .body ul{padding-left:22px;color:#2A3B47;margin:14px 0}
.article .body li{margin:7px 0}
.article .back{margin:44px 0}
/* quality */
.q-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:980px){.q-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.q-grid{grid-template-columns:1fr}}
.q-badge{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;display:flex;gap:12px;align-items:flex-start}
.q-badge .ic{font-size:20px;line-height:1.2}
.q-badge .nm{font-weight:600;font-size:14px}
.q-badge .st{font-size:11px;margin-top:4px}
.note{background:#F7EEDA;border:1px solid #EAD9A8;border-radius:12px;padding:18px 22px;font-size:14.5px;color:#6B5410;margin:20px 0}
.note b{color:#4F3D08}
.note.blue{background:#E3F1FA;border-color:#B5DCF2;color:#0C4F73}
/* rfq */
.rfq{display:grid;grid-template-columns:1fr 1.2fr;gap:34px;align-items:start}
@media(max-width:900px){.rfq{grid-template-columns:1fr}}
.kv{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;box-shadow:var(--shadow)}
.kv h3{font-size:18px;margin-bottom:16px}
.kv .row{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.kv .row:last-child{border-bottom:none}
.kv .k{width:80px;color:var(--ink2);flex-shrink:0}
.kv .v{color:var(--ink)}
form.rfq-f{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px;box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 1fr;gap:16px}
form.rfq-f .full{grid-column:1/-1}
@media(max-width:640px){form.rfq-f{grid-template-columns:1fr}}
.fld label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--ink2)}
.fld input,.fld textarea,.fld select{width:100%;border:1.5px solid var(--line);border-radius:9px;padding:11px 13px;font-size:14.5px;font-family:inherit;background:#FBFDFE;color:var(--ink)}
.fld input:focus,.fld textarea:focus,.fld select:focus{outline:none;border-color:var(--acc)}
.fld .err{color:var(--bad);font-size:12px;margin-top:4px;display:none}
.fld.bad input,.fld.bad textarea{border-color:var(--bad)}
.fld.bad .err{display:block}
/* cta band */
.cta-band{margin:80px 0 0;background:linear-gradient(120deg,var(--accD),var(--acc));border-radius:20px;color:#fff;padding:44px 48px;display:flex;align-items:center;gap:30px;flex-wrap:wrap}
.cta-band h2{font-size:27px;margin-bottom:8px}
.cta-band p{opacity:.9;font-size:15px;max-width:560px}
.cta-band .btn{background:#fff;color:var(--accD);box-shadow:none;margin-left:auto}
/* footer */
footer{background:var(--ink);color:#9FB2BF;margin-top:80px}
.ft{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding:54px 0 40px}
@media(max-width:900px){.ft{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.ft{grid-template-columns:1fr}}
.ft h4{color:#fff;font-size:15px;margin-bottom:14px}
.ft a{color:#9FB2BF;display:block;margin:6px 0;font-size:14px}
.ft a:hover{color:var(--acc2)}
.ft .brand{margin-bottom:14px}
.ft .brand img{width:42px;height:42px}
.ft .brand .bt{color:#fff}
.ft .brand .bt small{color:#9FB2BF}
.ft .adr{font-size:14px;line-height:1.9}
.ft .adr b{color:#D7E3EA}
.ft-bot{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:12.5px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--ink);color:#fff;padding:13px 24px;border-radius:12px;font-size:14px;opacity:0;transition:.35s;z-index:999;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
/* facility gallery */
.fg{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:980px){.fg{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.fg{grid-template-columns:1fr}}
.fcell{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:0}
.fcell img{width:100%;height:250px;object-fit:cover}
.fcell figcaption{padding:10px 14px;font-size:12.5px;color:var(--ink2);border-top:1px solid var(--line)}
/* about */
.ab .lead2{font-size:17px;color:#2A3B47;max-width:800px;margin-bottom:14px}
.ab .band{border-radius:16px;margin:26px 0}


/* ===== Product page: feature icons + application images ===== */
.zm-sec{ margin-top:44px; }
.zm-sec h3{ font-size:17px; font-weight:700; color:#0C1A24; letter-spacing:.02em; margin:0 0 18px; text-transform:uppercase; }
.zm-fgrid{ display:grid; grid-template-columns:repeat(auto-fill,minmax(155px,1fr)); gap:12px; }
.zm-fitem{ margin:0; text-align:center; background:#fff; border:1px solid #E6ECF2; border-radius:8px; padding:10px 8px 8px; }
.zm-fitem img{ display:block; margin:0 auto; width:100%!important; height:auto!important; max-width:150px; }
.zm-fitem figcaption{ margin-top:10px; font-size:12.5px; color:#4A5866; font-weight:600; line-height:1.35; }
.zm-agrid{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.zm-aitem{ margin:0; background:#fff; border:1px solid #E6ECF2; border-radius:10px; overflow:hidden; }
.zm-aitem img{ display:block; width:100%; height:auto; }
.zm-aitem figcaption{ padding:10px 12px; font-size:13px; color:#4A5866; font-weight:600; text-align:center; }
@media(max-width:680px){
  .zm-fgrid{ grid-template-columns:repeat(auto-fill,minmax(140px,1fr)); }
  .zm-fitem img{ width:100%!important; height:auto!important; max-width:250px; }
  .zm-agrid{ grid-template-columns:1fr; }
}

/* Material Selection Guide (Technical Manual) */
.sel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0 40px}
.sel-item{background:#fff;border:1px solid #E6EDF2;border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:8px}
.sel-item h4{margin:0;font-size:16px;color:var(--ink)}
.sel-q{margin:0;font-size:13px;color:var(--ink2);line-height:1.5}
.sel-pick{display:block;border:1px solid #E6EDF2;border-radius:8px;padding:10px 12px;text-decoration:none;transition:border-color .18s,box-shadow .18s}
.sel-pick:hover{border-color:var(--acc);box-shadow:0 2px 8px rgba(14,125,194,.12)}
.sel-pick b{display:block;font-size:14px;color:var(--ink);margin-bottom:2px}
.sel-pick span{display:block;font-size:12px;color:var(--ink2);line-height:1.45}
@media(max-width:900px){.sel-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.sel-grid{grid-template-columns:1fr}}

/* Grouped spec rows */
.spec-t tr.grp th{background:#EAF3F9;color:#0E2A3A;font-size:12px;letter-spacing:.06em;text-transform:uppercase;padding:9px 12px}