/* ============================================================
   CBZIN — Industrial design system
   Heavy-machinery palette: deep navy, steel grey, safety orange.
   Single stylesheet. No external dependencies.
   ============================================================ */

:root{
  /* --- colour --- */
  --ink:#0A1628;
  --navy:#0F2E52;
  --blue:#1A5FA8;
  --blue-050:#EEF4FB;
  --blue-100:#D6E4F5;
  --steel:#5B6B7F;
  --steel-2:#8494A6;
  --accent:#FF6B1A;
  --accent-dk:#DE560A;
  --accent-050:#FFF1E7;
  --bg:#FFFFFF;
  --bg-2:#F4F7FA;
  --bg-3:#E9EEF4;
  --line:#DBE3EC;
  --line-2:#C3CFDC;

  /* --- type --- */
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  /* --- shape --- */
  --r-sm:6px; --r:10px; --r-lg:14px;
  --sh-1:0 1px 2px rgba(10,22,40,.06);
  --sh-2:0 2px 4px rgba(10,22,40,.05), 0 12px 28px rgba(10,22,40,.08);
  --sh-3:0 4px 8px rgba(10,22,40,.06), 0 24px 48px rgba(10,22,40,.12);
  --wrap:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.68;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none;transition:color .15s}
a:hover{color:var(--accent)}

h1,h2,h3,h4{margin:0 0 .55em;font-weight:700;line-height:1.16;letter-spacing:-.018em;color:var(--ink)}
h1{font-size:clamp(31px,4.3vw,52px)}
h2{font-size:clamp(24px,2.9vw,35px)}
h3{font-size:clamp(17px,1.7vw,20px);letter-spacing:-.01em}
p{margin:0 0 1.1em}
ul{margin:0 0 1.1em;padding-left:1.2em}
li{margin:.32em 0}
code{font-family:var(--mono);font-size:.92em;color:var(--navy)}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tight{padding:56px 0}
.center{text-align:center}
.small{font-size:14.5px}
.muted{color:var(--steel)}
.muted2{color:var(--steel-2);font-size:14.5px}
hr{border:0;border-top:1px solid var(--line);margin:52px 0}

/* ---------- kicker / eyebrow ---------- */
.kicker,.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
  padding-bottom:9px;margin-bottom:15px;position:relative;
}
.kicker::after{
  content:"";position:absolute;left:0;bottom:0;width:30px;height:2px;background:var(--accent);
}
.lede{font-size:18.5px;color:var(--steel);max-width:74ch;line-height:1.62}
.sechead{max-width:790px;margin:0 auto 52px;text-align:center}
.sechead .kicker::after{left:50%;transform:translateX(-50%)}
.sechead .lede{margin:0 auto}

/* ---------- top bar ---------- */
.topbar{background:var(--ink);color:#9FB3C8;font-size:13.5px;padding:9px 0}
.topbar .wrap{display:flex;gap:20px;flex-wrap:wrap;align-items:center;justify-content:space-between}
.topbar a{color:#D6E4F5}
.topbar a:hover{color:#fff}
.topbar .tb-right{display:flex;gap:20px;flex-wrap:wrap;font-family:var(--mono);font-size:13px}

/* ---------- header + dropdown ---------- */
header.site{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);
}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:13px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand .mark{
  width:40px;height:40px;border-radius:11px;background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:.01em;flex:none;
}
.brandtxt{display:flex;flex-direction:column;font-size:21px;font-weight:800;letter-spacing:.03em;line-height:1.1}
.brandtxt small{font-size:10.5px;font-weight:600;color:var(--steel-2);letter-spacing:.13em;text-transform:uppercase}
nav.main{display:flex;gap:2px;align-items:center}
nav.main > a,nav.main .nav-dd > a{
  padding:10px 14px;border-radius:var(--r-sm);color:var(--ink);
  font-size:15px;font-weight:600;white-space:nowrap;
}
nav.main > a:hover,nav.main .nav-dd > a:hover{background:var(--bg-2);color:var(--navy)}
nav.main > a.active,nav.main .nav-dd > a.active{color:var(--navy);background:var(--blue-050)}
.nav-cta{margin-left:10px;padding:11px 20px !important;color:#fff !important}
.nav-cta:hover{color:#fff !important}
.caret{
  display:inline-block;width:0;height:0;margin-left:6px;vertical-align:middle;
  border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;
}
.nav-dd{position:relative}
.dd-panel{
  position:absolute;top:calc(100% + 8px);left:-14px;width:352px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-3);
  padding:10px;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:.18s ease;display:grid;gap:2px;
}
.nav-dd:hover .dd-panel,.nav-dd:focus-within .dd-panel{opacity:1;visibility:visible;transform:none}
.dd-panel a{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  padding:10px 13px;border-radius:var(--r-sm);color:var(--ink);
}
.dd-panel a:hover{background:var(--blue-050);color:var(--navy)}
.dd-panel a b{font-size:14.5px;font-weight:600}
.dd-panel a span{font-size:12px;color:var(--steel-2);font-family:var(--mono);white-space:nowrap}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:9px 13px;font-size:15px;font-weight:600;cursor:pointer;color:var(--ink)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r);font-weight:700;font-size:15.5px;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,107,26,.26)}
.btn-primary:hover{background:var(--accent-dk);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--navy);color:var(--navy)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.32)}
.btn-light:hover{background:rgba(255,255,255,.22);color:#fff}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.center .btn-row{justify-content:center}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--ink)}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:url("../img/factory-floor.jpg");
  background-size:cover;background-position:center 40%;
  opacity:.22;filter:grayscale(.35);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(10,22,40,.96) 0%,rgba(10,22,40,.86) 46%,rgba(15,46,82,.72) 100%);
  z-index:1;
}
.hero .wrap{position:relative;z-index:2;padding:96px 24px 0}
.hero h1{color:#fff;max-width:20ch}
.hero p{color:#B9CADE;max-width:64ch;font-size:18.5px}
.hero .eyebrow{color:var(--accent)}
.hero .btn-row{margin-top:26px}
.hero .badges{display:flex;gap:9px;flex-wrap:wrap;margin:30px 0 0;padding:0;list-style:none}
.hero .badges li{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  border-radius:999px;padding:7px 16px;font-size:13.5px;font-weight:600;color:#D6E4F5;margin:0;
}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:rgba(255,255,255,.12);border-top:1px solid rgba(255,255,255,.16);
  margin-top:62px;
}
.hero-stats div{padding:26px 18px;text-align:center}
.hero-stats b{display:block;font-size:29px;font-weight:800;color:#fff;line-height:1.2;letter-spacing:-.02em}
.hero-stats span{font-family:var(--mono);font-size:11.5px;letter-spacing:.11em;color:#8FA6BE}

/* ---------- page head ---------- */
.pagehead{
  background:var(--bg-2);border-bottom:1px solid var(--line);
  padding:64px 0 58px;
}
.pagehead h1{margin-bottom:.35em}
.pagehead .lede{color:var(--steel)}
.crumb{font-family:var(--mono);font-size:12.5px;color:var(--steel-2);margin-bottom:18px;letter-spacing:.04em}
.crumb a{color:var(--blue)}
.crumb i{margin:0 9px;font-style:normal;color:var(--line-2)}
.crumb span{color:var(--steel)}

/* ---------- category grid (level 1) ---------- */
.catgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.catcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;transition:.2s ease;color:inherit;
}
.catcard:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:var(--line-2);color:inherit}
.catcard-img{
  background:var(--bg-2);border-bottom:1px solid var(--line);
  aspect-ratio:4/3;display:grid;place-items:center;padding:22px;overflow:hidden;
}
.catcard-img img{max-height:100%;width:auto;transition:transform .3s ease}
.catcard:hover .catcard-img img{transform:scale(1.045)}
.catcard-body{padding:22px 22px 24px;flex:1;display:flex;flex-direction:column}
.catcard-body .kicker{margin-bottom:10px;font-size:11px;padding-bottom:7px}
.catcard-body h3{margin-bottom:.4em}
.catcard-body p{color:var(--steel);font-size:15px;flex:1}
.catcard-meta{
  font-family:var(--mono);font-size:12.5px;font-weight:600;color:var(--accent);
  letter-spacing:.05em;margin-top:6px;
}
.catgrid--tall .catcard-img{aspect-ratio:3/2}

/* ---------- product grid (level 2) ---------- */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;transition:.2s ease;height:100%;
  scroll-margin-top:100px;
}
.pcard:hover{box-shadow:var(--sh-2);border-color:var(--line-2)}
.pcard-img{
  background:#fff;border-bottom:1px solid var(--line);
  aspect-ratio:1/1;display:grid;place-items:center;padding:18px;
}
.pcard-img img{width:100%;height:100%;object-fit:contain}
.pcard-img--none{background:var(--bg-2);color:var(--steel-2);font-family:var(--mono);font-size:12.5px}
.pcard-body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.model{
  display:inline-block;font-family:var(--mono);font-size:12.5px;font-weight:700;
  color:var(--navy);background:var(--blue-050);border:1px solid var(--blue-100);
  border-radius:5px;padding:3px 9px;margin-bottom:11px;letter-spacing:.02em;align-self:flex-start;
}
.pcard-body h3{font-size:17.5px;margin-bottom:.5em}
.pcard-body ul{margin:0;padding-left:1.15em;color:var(--steel);font-size:14.5px;flex:1}
.pcard-body ul li{margin:.26em 0}
.pcard-cta{
  margin-top:16px;font-size:14px;font-weight:700;color:var(--accent);
  border-top:1px solid var(--line);padding-top:14px;
}
.pcard-cta:hover{color:var(--accent-dk)}

/* ---------- features / cards ---------- */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:27px 25px;position:relative;
}
.feature .ico{
  width:44px;height:44px;border-radius:var(--r);background:var(--ink);color:var(--accent);
  display:grid;place-items:center;font-family:var(--mono);font-weight:700;font-size:14px;
  margin-bottom:18px;
}
.feature h3{font-size:17.5px;margin-bottom:.45em}
.feature p{margin:0;font-size:15px;color:var(--steel)}

/* ---------- spec table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}
table.spec{width:100%;border-collapse:collapse;font-size:15.5px;min-width:460px}
table.spec th,table.spec td{padding:13px 19px;text-align:left;border-bottom:1px solid var(--line)}
table.spec thead th{
  background:var(--ink);color:#fff;font-family:var(--mono);font-size:12px;
  letter-spacing:.12em;text-transform:uppercase;font-weight:600;
}
table.spec tbody tr:nth-child(even){background:var(--bg-2)}
table.spec tbody tr:last-child td{border-bottom:0}
table.spec td:first-child{font-weight:600;color:var(--ink);width:46%}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:start}
.split-media{display:grid;gap:18px}
.split-media img{border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1)}
.split > div > img{border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1)}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:11px;padding:0;margin:0;list-style:none}
.chips li{
  background:#fff;border:1px solid var(--line-2);border-radius:999px;padding:9px 18px;
  font-size:15px;font-weight:600;color:var(--ink);margin:0;
}
.center-chips{justify-content:center}

/* ---------- other-line grid ---------- */
.ddgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ddgrid a{
  display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;color:var(--ink);
}
.ddgrid a:hover{border-color:var(--navy);color:var(--navy);box-shadow:var(--sh-1)}
.ddgrid a b{font-size:15px;font-weight:600}
.ddgrid a span{font-family:var(--mono);font-size:12px;color:var(--steel-2);white-space:nowrap}

/* ---------- CTA ---------- */
.cta{
  background:var(--ink);color:#fff;border-radius:var(--r-lg);padding:58px 48px;
  text-align:center;position:relative;overflow:hidden;
}
.cta::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;background:rgba(255,107,26,.13);
}
.cta h2{color:#fff;position:relative;z-index:1}
.cta p{color:#B9CADE;max-width:58ch;margin:0 auto 30px;position:relative;z-index:1}
.cta .btn-row{justify-content:center;position:relative;z-index:1}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 24px 22px;margin-bottom:16px;
}
.info-card .k{
  display:block;font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.13em;
  text-transform:uppercase;color:var(--accent);margin-bottom:9px;
}
.info-card h3{font-size:19px;margin-bottom:.35em;word-break:break-word}
.info-card p{margin:0;font-size:15.5px;color:var(--steel)}
form.inquiry{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 28px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:700;margin-bottom:7px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:var(--r-sm);
  font-family:inherit;font-size:15.5px;color:var(--ink);background:#fff;
}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-050);
}
.field textarea{min-height:136px;resize:vertical}

/* ---------- footer ---------- */
footer.site{background:var(--ink);color:#93A6BC;padding:66px 0 28px;font-size:15px}
footer.site h4{
  color:#fff;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;
  text-transform:uppercase;margin-bottom:18px;
}
footer.site a{color:#C6D5E6}
footer.site a:hover{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.5fr 1.1fr .9fr 1.2fr;gap:36px}
.foot-grid p{margin:0 0 10px}
.foot-grid .muted2{color:#6E8299;font-size:14px}
footer.site .legal{
  border-top:1px solid rgba(198,213,230,.15);margin-top:48px;padding-top:24px;
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13.5px;color:#6E8299;
}

/* ---------- floating contact widget (常驻右下角) ---------- */
.cw{position:fixed;right:24px;bottom:24px;z-index:200;font-family:var(--sans)}
.cw-fab{
  width:56px;height:56px;border-radius:50%;border:0;cursor:pointer;
  background:var(--accent);color:#fff;display:grid;place-items:center;
  box-shadow:0 8px 24px rgba(10,22,40,.28);transition:.2s ease;position:relative;
}
.cw-fab:hover{background:var(--accent-dk);transform:translateY(-2px)}
.cw-fab svg{position:absolute;transition:.2s ease}
.cw-fab-x{opacity:0;transform:rotate(-45deg) scale(.8)}
.cw-open .cw-fab .cw-fab-x{opacity:1;transform:none}
.cw-open .cw-fab > svg:first-child{opacity:0;transform:rotate(45deg) scale(.8)}

.cw-panel{
  position:absolute;right:0;bottom:70px;width:342px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-3);
  overflow:hidden;opacity:0;visibility:hidden;transform:translateY(10px) scale(.98);
  transform-origin:bottom right;transition:.2s ease;
}
.cw-open .cw-panel{opacity:1;visibility:visible;transform:none}

.cw-head{
  background:var(--ink);color:#fff;padding:16px 18px;
}
.cw-head strong{display:block;font-size:15.5px;font-weight:700;letter-spacing:-.01em}
.cw-head span{display:block;font-size:12.5px;color:#8FA6BE;margin-top:3px}

.cw-quick{display:grid;gap:1px;background:var(--line)}
.cw-q{
  display:grid;grid-template-columns:34px 1fr;grid-template-rows:auto auto;
  align-items:center;gap:0 12px;padding:11px 16px;background:#fff;color:var(--ink);
}
.cw-q:hover{background:var(--blue-050);color:var(--navy)}
.cw-ic{
  grid-row:1 / span 2;width:34px;height:34px;border-radius:9px;
  background:var(--blue-050);color:var(--navy);display:grid;place-items:center;
}
.cw-q:hover .cw-ic{background:#fff}
.cw-q b{font-size:14px;font-weight:700;line-height:1.3}
.cw-q i{font-style:normal;font-size:12.5px;color:var(--steel-2);font-family:var(--mono)}

.cw-form{padding:16px 16px 14px;display:grid;gap:9px;border-top:1px solid var(--line)}
.cw-row{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.cw-form input,.cw-form textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line-2);border-radius:var(--r-sm);
  font-family:inherit;font-size:14px;color:var(--ink);background:#fff;
}
.cw-form textarea{resize:vertical;min-height:70px}
.cw-form input:focus,.cw-form textarea:focus{
  outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-050);
}
.cw-form .btn{width:100%;padding:11px 18px;font-size:14.5px}
.cw-note{margin:2px 0 0;font-size:11.5px;color:var(--steel-2);line-height:1.45}
.cw-done{margin:0;font-size:14px;color:var(--green,#3B6D11);font-weight:600;line-height:1.5}

@media (max-width:560px){
  .cw{right:14px;bottom:14px;left:14px}
  .cw-fab{margin-left:auto}
  .cw-panel{width:auto;left:0;right:0;bottom:68px}
  .cw-row{grid-template-columns:1fr}
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .catgrid{grid-template-columns:repeat(2,1fr)}
  .pgrid{grid-template-columns:repeat(2,1fr)}
  .g4{grid-template-columns:repeat(2,1fr)}
  .split,.contact-grid{grid-template-columns:1fr;gap:34px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .ddgrid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  body{font-size:16px}
  .section{padding:56px 0}
  .g3,.g2{grid-template-columns:1fr}
  .hero .wrap{padding:64px 24px 0}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .pagehead{padding:44px 0 40px}
  nav.main{
    display:none;position:absolute;top:74px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;padding:14px;gap:2px;
    border-bottom:1px solid var(--line);box-shadow:var(--sh-2);max-height:80vh;overflow:auto;
  }
  nav.main.open{display:flex}
  nav.main > a,nav.main .nav-dd > a{padding:13px 14px}
  .nav-dd .dd-panel{
    position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;
    border:0;border-left:2px solid var(--line);border-radius:0;width:auto;
    margin:0 0 6px 14px;padding:0 0 0 8px;
  }
  .nav-cta{margin:10px 0 0 !important;justify-content:center}
  header.site .wrap{position:relative;height:66px}
  .cta{padding:40px 24px}
}
@media (max-width:600px){
  .catgrid,.pgrid,.ddgrid,.foot-grid,.hero-stats{grid-template-columns:1fr}
  .wrap{padding:0 18px}
}