/* ==========================================================================
   Kunhan Optoelectronics — export website
   Design system / global stylesheet
   Brand: navy #1E3A5F  +  orange #E0812B   (carried over from the brochure)
   ========================================================================== */

/* ---------- tokens ---------- */
:root{
  /* Cool industrial palette, aligned to the blue K-mark logo.
     --orange* are kept as aliases of the new accent so existing rules
     continue to work; use --accent* in new rules. */
  --navy:#152A40;
  --navy-800:#0F2033;
  --navy-900:#0A1622;
  --navy-050:#EDF3F9;
  --accent:#1F5AA6;
  --accent-600:#174A8C;
  --accent-050:#EAF1FA;
  --steel:#5C7186;
  --orange:var(--accent);
  --orange-600:var(--accent-600);
  --orange-050:var(--accent-050);

  --ink:#12161B;
  --body:#4B5563;
  --muted:#8A9099;
  --line:#E4E8ED;
  --line-strong:#CFD6DE;
  --soft:#F7F9FB;
  --white:#fff;

  --font:"Inter","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;

  --r-sm:6px;
  --r:10px;
  --r-lg:16px;

  --sh-sm:0 1px 2px rgba(16,31,51,.06);
  --sh:0 4px 16px rgba(16,31,51,.08);
  --sh-lg:0 18px 48px rgba(16,31,51,.13);

  --w:1200px;
  --pad:clamp(18px,4vw,32px);
  --header-h:68px;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.65;
  color:var(--body);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--navy);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);line-height:1.2;margin:0 0 .5em;font-weight:700;letter-spacing:-.015em}
h1{font-size:clamp(30px,4.4vw,50px)}
h2{font-size:clamp(24px,3vw,36px)}
h3{font-size:clamp(18px,1.7vw,21px)}
h4{font-size:16px;letter-spacing:0}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.15em}
li{margin:.35em 0}
strong{color:var(--ink);font-weight:600}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px;border-radius:3px}

/* ---------- helpers ---------- */
.container{width:100%;max-width:var(--w);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:clamp(48px,7vw,88px)}
.section--tight{padding-block:clamp(32px,4vw,56px)}
.section--soft{background:var(--soft)}
.section--navy{background:var(--navy);color:#C9D6E4}
.section--navy h2,.section--navy h3{color:#fff}
.center{text-align:center}
.lead{font-size:clamp(16px,1.5vw,18px);color:var(--body);max-width:62ch}
.center .lead{margin-inline:auto}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--orange-600);margin:0 0 14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);border-radius:2px}
.section-head{max-width:70ch;margin-bottom:clamp(28px,4vw,44px)}
.section-head--center{margin-inline:auto;text-align:center}
.section-head--center .eyebrow{justify-content:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .18s,color .18s,border-color .18s,transform .18s,box-shadow .18s;
  text-decoration:none!important;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 2px 10px rgba(31,90,166,.30)}
.btn-primary:hover{background:var(--orange-600)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-800)}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--line-strong)}
.btn-outline:hover{border-color:var(--navy);background:var(--navy-050)}
.btn-ghost-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost-light:hover{background:rgba(255,255,255,.18)}
.btn-sm{padding:10px 16px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.center .btn-row{justify-content:center}
.link-arrow{font-weight:600;font-size:14.5px;display:inline-flex;align-items:center;gap:6px}
.link-arrow::after{content:"→";transition:transform .18s}
.link-arrow:hover::after{transform:translateX(3px)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
}
.site-header .container{
  display:flex;align-items:center;gap:20px;
  min-height:var(--header-h);
}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--navy);letter-spacing:-.02em;text-decoration:none!important}
.brand__mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:8px;background:var(--navy);
  color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:-.03em;
  position:relative;overflow:hidden;
}
.brand__mark::after{content:"";position:absolute;right:-6px;bottom:-6px;width:16px;height:16px;border-radius:50%;background:var(--orange)}
.brand__name{display:flex;flex-direction:column;line-height:1.1}
.brand__name b{font-size:16.5px}
.brand__name span{font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a{
  display:block;padding:9px 13px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--ink);text-decoration:none!important;white-space:nowrap;
}
.nav a:hover{background:var(--navy-050);color:var(--navy)}
.nav a[aria-current="page"]{color:var(--navy);font-weight:700}
.header-cta{margin-left:10px;display:flex;gap:10px;align-items:center}
.header-phone{font-size:14px;font-weight:600;color:var(--navy);white-space:nowrap}

/* dropdown */
.has-drop{position:relative}
.has-drop>a::after{content:"⌄";margin-left:5px;font-size:12px;color:var(--muted)}
.drop{
  position:absolute;top:calc(100% + 6px);left:0;min-width:245px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--sh-lg);padding:7px;display:none;
}
.has-drop:hover .drop,.has-drop:focus-within .drop{display:block}
.drop a{font-size:14px;padding:9px 12px;border-radius:var(--r-sm)}
.drop a span{display:block;font-size:12px;color:var(--muted);font-weight:400}

/* burger */
.burger{
  display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:var(--r-sm);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:20px;height:2px;background:var(--navy);border-radius:2px;transition:.2s}

/* mobile drawer */
@media (max-width:1200px){
  .burger{display:flex}
  .nav,.header-cta{display:none}
  .site-header.is-open .nav{
    display:flex;flex-direction:column;align-items:stretch;
    position:absolute;top:100%;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--line);box-shadow:var(--sh-lg);
    padding:10px var(--pad) 20px;margin:0;gap:2px;max-height:calc(100vh - var(--header-h));overflow:auto;
  }
  .site-header.is-open .nav a{padding:13px 10px;border-radius:var(--r-sm);border-bottom:1px solid var(--soft)}
  .site-header.is-open .drop{position:static;display:block;box-shadow:none;border:0;padding:0 0 0 14px;min-width:0}
  .site-header.is-open .drop a{border-bottom:0;font-size:13.5px;color:var(--body)}
  .site-header.is-open .header-cta{display:flex;position:absolute;top:100%;left:0;right:0;padding:0 var(--pad) 18px;background:#fff;margin-top:0;z-index:1}
  .site-header.is-open .nav{padding-bottom:0}
  .site-header.is-open .header-cta .btn{width:100%}
  .mobile-cta-wrap{display:block}
}
.mobile-cta-wrap{display:none}

/* ---------- hero ---------- */
.hero{
  position:relative;background:linear-gradient(158deg,#0A1622 0%,#152A40 52%,#1D3A52 100%);
  color:#C9D6E4;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(920px 460px at 76% 16%,rgba(56,132,214,.30),transparent 70%);
  pointer-events:none;
}
.hero__inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,60px);
  align-items:center;padding-block:clamp(48px,7vw,92px);
}
.hero h1{color:#fff;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#7FB2E8}
.hero p{color:#B9C9DA;font-size:clamp(15.5px,1.5vw,18px);max-width:52ch;margin-bottom:8px}
.hero__media{position:relative}
.hero__media img{
  width:100%;height:auto;
  filter:drop-shadow(0 26px 52px rgba(4,12,20,.55));
}
.hero__badge{
  position:absolute;left:-14px;bottom:22px;background:#fff;color:var(--ink);
  border-radius:var(--r);padding:12px 16px;box-shadow:var(--sh-lg);
  font-size:13px;font-weight:600;display:flex;align-items:center;gap:10px;
}
.hero__badge b{display:block;font-size:20px;color:var(--navy);line-height:1}
.hero__badge span{color:var(--muted);font-weight:500;font-size:11.5px;display:block;margin-top:3px}
@media (max-width:900px){
  .hero__inner{grid-template-columns:1fr}
  .hero__media{order:-1}
  .hero__media img{max-width:430px;margin-inline:auto}
  .hero__badge{left:auto;right:12px;bottom:-14px}
}

/* ---------- trust bar ---------- */
.trustbar{border-bottom:1px solid var(--line);background:#fff}
.trustbar__inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border-radius:0;
}
.trustbar__item{background:#fff;padding:22px clamp(12px,2vw,26px);text-align:center}
.trustbar__item b{display:block;font-size:clamp(20px,2.4vw,28px);color:var(--navy);line-height:1.1;letter-spacing:-.02em}
.trustbar__item span{display:block;font-size:12.5px;color:var(--muted);margin-top:5px;font-weight:500}
@media (max-width:720px){
  .trustbar__inner{grid-template-columns:repeat(2,1fr)}
}

/* ---------- cards ---------- */
.grid{display:grid;gap:clamp(16px,2.2vw,26px)}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
@media (max-width:980px){.grid--4{grid-template-columns:repeat(2,1fr)}.grid--3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid--2,.grid--3,.grid--4{grid-template-columns:1fr}}

.card{
  border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;
  overflow:hidden;transition:box-shadow .2s,border-color .2s,transform .2s;
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--sh);border-color:var(--line-strong);transform:translateY(-2px)}
.card__media{background:var(--soft);aspect-ratio:4/3;display:grid;place-items:center;overflow:hidden;border-bottom:1px solid var(--line)}
.card__media img{width:100%;height:100%;object-fit:contain;padding:14px}
.card__body{padding:20px 20px 22px;flex:1;display:flex;flex-direction:column}
.card__body h3{margin-bottom:6px;font-size:18px}
.card__body p{font-size:14.5px;margin-bottom:14px;color:var(--body)}
.card__body .link-arrow{margin-top:auto}
.card__tag{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--orange-600);background:var(--orange-050);padding:4px 9px;border-radius:4px;margin-bottom:10px;
}

/* product card with spec line */
.card__spec{list-style:none;padding:0;margin:0 0 14px;font-size:13.5px}
.card__spec li{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-bottom:1px dashed var(--line);margin:0}
.card__spec li:last-child{border-bottom:0}
.card__spec dt,.card__spec span:first-child{color:var(--muted)}
.card__spec b{color:var(--ink);font-weight:600;text-align:right}

/* ---------- feature / icon list ---------- */
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px}
.feature__ico{
  width:42px;height:42px;border-radius:10px;background:var(--navy-050);color:var(--navy);
  display:grid;place-items:center;margin-bottom:14px;
}
.feature__ico svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature h3{font-size:17px;margin-bottom:7px}
.feature p{font-size:14.5px;margin:0}

/* ---------- spec table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff;-webkit-overflow-scrolling:touch}
table.spec{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
table.spec caption{
  caption-side:top;text-align:left;padding:16px 18px 12px;font-weight:700;color:var(--ink);font-size:15px;
  background:#fff;border-bottom:1px solid var(--line);
}
table.spec th,table.spec td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
table.spec thead th{
  background:var(--navy);color:#fff;font-weight:600;font-size:12.5px;
  letter-spacing:.04em;text-transform:uppercase;white-space:nowrap;
}
table.spec tbody tr:nth-child(even){background:var(--soft)}
table.spec tbody tr:hover{background:var(--navy-050)}
table.spec td:first-child{font-weight:600;color:var(--ink);white-space:nowrap}
table.spec td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.table-note{font-size:12.5px;color:var(--muted);margin-top:10px}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(26px,4vw,58px);align-items:center}
.split--reverse .split__media{order:2}
.split__media img{border-radius:var(--r-lg);border:1px solid var(--line);background:var(--soft);padding:16px}
@media (max-width:860px){
  .split{grid-template-columns:1fr}
  .split--reverse .split__media{order:0}
}

/* ---------- checklist ---------- */
.checklist{list-style:none;padding:0;margin:0 0 1.2em}
.checklist li{position:relative;padding-left:29px;margin:.6em 0;font-size:15px}
.checklist li::before{
  content:"";position:absolute;left:0;top:.42em;width:17px;height:17px;border-radius:50%;
  background:var(--orange);opacity:.14;
}
.checklist li::after{
  content:"";position:absolute;left:5.5px;top:.72em;width:6px;height:3px;
  border-left:2px solid var(--orange-600);border-bottom:2px solid var(--orange-600);
  transform:rotate(-45deg);
}

/* ---------- compatibility strip ---------- */
.compat{background:var(--navy-050);border-block:1px solid var(--line)}
.compat__inner{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(20px,3vw,44px);align-items:center}
.compat__logos{display:flex;flex-wrap:wrap;gap:10px}
.compat__logos span{
  background:#fff;border:1px solid var(--line-strong);border-radius:999px;
  padding:8px 16px;font-size:13.5px;font-weight:600;color:var(--navy);
}
@media (max-width:800px){.compat__inner{grid-template-columns:1fr}}

/* ---------- application tiles ---------- */
.app-tile{
  position:relative;border:1px solid var(--line);border-radius:var(--r);
  background:#fff;padding:18px 20px;overflow:hidden;transition:.18s;
}
.app-tile::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--orange);opacity:0;transition:opacity .18s;
}
.app-tile:hover{border-color:var(--line-strong);box-shadow:var(--sh-sm)}
.app-tile:hover::before{opacity:1}
.app-tile h3{font-size:15.5px;margin:0 0 5px}
.app-tile p{font-size:13.8px;margin:0;color:var(--body)}
.app-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(255px,1fr));gap:14px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--navy);position:relative;overflow:hidden;color:#C9D6E4}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,132,214,.30),transparent 65%);
}
.cta-band__inner{
  position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:24px;
  align-items:center;justify-content:space-between;padding-block:clamp(36px,5vw,58px);
}
.cta-band h2{color:#fff;margin-bottom:6px}
.cta-band p{margin:0;max-width:56ch}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin-inline:auto}
.faq details{
  border:1px solid var(--line);border-radius:var(--r);background:#fff;margin-bottom:10px;
  overflow:hidden;
}
.faq details[open]{border-color:var(--line-strong);box-shadow:var(--sh-sm)}
.faq summary{
  cursor:pointer;padding:16px 46px 16px 18px;font-weight:600;color:var(--ink);
  font-size:15px;list-style:none;position:relative;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--orange);font-weight:400;line-height:1;
}
.faq details[open] summary::after{content:"–"}
.faq .faq__body{padding:0 18px 18px;font-size:14.5px}
.faq .faq__body p:last-child{margin-bottom:0}

/* ---------- forms ---------- */
.form{display:grid;gap:14px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:640px){.form-row{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13px;font-weight:600;color:var(--ink)}
.field label .req{color:var(--orange-600)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:15px;color:var(--ink);
  padding:11px 13px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:#fff;
  width:100%;transition:border-color .16s,box-shadow .16s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--navy);box-shadow:0 0 0 3px rgba(30,58,95,.12);
}
.field textarea{min-height:118px;resize:vertical}
.field .hint{font-size:12px;color:var(--muted)}
.form__note{font-size:12.5px;color:var(--muted)}
.form__ok{
  display:none;background:#EDF7EE;border:1px solid #B7E0BC;color:#1F6B2A;
  padding:14px 16px;border-radius:var(--r-sm);font-size:14.5px;
}
.form__ok.is-visible{display:block}

/* ---------- breadcrumb ---------- */
.crumb{font-size:13px;color:var(--muted);padding-block:16px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--navy)}
.crumb span{margin-inline:7px;color:var(--line-strong)}

/* ---------- page head (inner pages) ---------- */
.page-head{
  background:linear-gradient(160deg,var(--navy-900),var(--navy) 70%);
  color:#C9D6E4;padding-block:clamp(34px,5vw,62px);position:relative;overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(56,132,214,.26),transparent 68%);
}
.page-head h1{color:#fff;margin-bottom:12px;position:relative;z-index:1}
.page-head p{max-width:64ch;margin:0;color:#B9C9DA;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-900);color:#93A5B9;font-size:14px}
.site-footer a{color:#C3D0DF;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer__top{
  display:grid;grid-template-columns:1.5fr .85fr .85fr 1.1fr auto;gap:clamp(20px,2.4vw,36px);
  padding-block:clamp(38px,5vw,60px);
}
.footer__top h4{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.footer__top ul{list-style:none;padding:0;margin:0}
.footer__top li{margin:.5em 0}
.footer__brand .brand{color:#fff;margin-bottom:14px}
.footer__brand .brand__mark{background:var(--orange)}
.footer__brand .brand__mark::after{background:#fff;opacity:.85}
.footer__brand p{margin-bottom:14px;max-width:34ch}
.footer__contact{list-style:none;padding:0;margin:0;font-size:13.5px}
.footer__contact li{margin:.6em 0;display:flex;gap:9px}
.footer__contact b{color:#fff;font-weight:600}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-block:18px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:#74879C;
}
@media (max-width:900px){
  .footer__top{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .footer__top{grid-template-columns:1fr}
}

/* ---------- floating WhatsApp ---------- */
.float-wa{
  position:fixed;right:18px;bottom:18px;z-index:70;
  display:inline-flex;align-items:center;gap:9px;
  background:#25D366;color:#fff;font-weight:600;font-size:14px;
  padding:12px 18px;border-radius:999px;box-shadow:0 8px 26px rgba(0,0,0,.22);
  text-decoration:none!important;
}
.float-wa:hover{background:#1EB955}
.float-wa svg{width:19px;height:19px;fill:currentColor}
@media (max-width:560px){
  .float-wa{padding:12px;border-radius:50%}
  .float-wa span{display:none}
}

/* ---------- misc ---------- */
.badge{
  display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:5px 10px;border-radius:999px;background:var(--navy-050);color:var(--navy);
}
.badge--orange{background:var(--orange-050);color:var(--orange-600)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:100;background:#fff;padding:10px 16px;border-radius:6px;box-shadow:var(--sh)}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.mt-2{margin-top:28px}.mt-3{margin-top:42px}
.small{font-size:13.5px;color:var(--muted)}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.pill{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:13px;color:var(--body);font-weight:500}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* ==========================================================================
   Brand logo (image lockup replaces the text mark)
   ========================================================================== */
.brand__logo{height:34px;width:auto;display:block}
.footer__brand .brand__logo{height:36px;filter:brightness(0) invert(1)}
@media (max-width:560px){.brand__logo{height:28px}}

/* ==========================================================================
   Social icons
   ========================================================================== */
.hsoc{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--steel);
  transition:background .18s,color .18s,border-color .18s,transform .18s}
.hsoc:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-1px)}
.hsoc svg{width:14px;height:14px;fill:currentColor;display:block}

.header-social{display:flex;align-items:center;gap:5px;margin-left:14px}
@media (max-width:1280px){.header-social{display:none}}

.nav-social{display:none}
@media (max-width:1200px){
  .nav-social{display:flex;gap:8px;padding:16px 10px 4px;border-top:1px solid var(--soft);margin-top:10px}
  .nav-social .hsoc{width:36px;height:36px}
  .nav-social .hsoc svg{width:16px;height:16px}
}

.footer__social{display:flex;gap:8px;margin-top:14px}
.site-footer .hsoc{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.16);color:#C3D3E2}
.site-footer .hsoc:hover{background:var(--accent);border-color:var(--accent);color:#fff}

/* ==========================================================================
   Floating WhatsApp — one round button, same as the Zhushi Weiye site
   ========================================================================== */
.float-wa{
  position:fixed;right:20px;bottom:20px;z-index:90;width:54px;height:54px;border-radius:50%;
  background:#25d366;display:grid;place-items:center;
  box-shadow:0 8px 24px rgba(0,0,0,.25);transition:background .16s,transform .16s;
}
.float-wa:hover{background:#1eb955;transform:scale(1.05)}
.float-wa svg{width:26px;height:26px;fill:#fff}
@media (max-width:600px){
  .float-wa{right:16px;bottom:16px;width:50px;height:50px}
  .float-wa svg{width:24px;height:24px}
}

/* ==========================================================================
   Legacy floating contact widget (unused — kept so old markup still renders)
   ========================================================================== */
.khw{position:fixed;right:18px;bottom:18px;z-index:78;display:flex;flex-direction:column;
  align-items:flex-end;gap:12px;font-family:var(--font)}
.khw[data-open="0"] .khw__card{display:none}

.khw__card{width:252px;background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:0 20px 52px rgba(10,22,34,.26)}

.khw__head{background:var(--navy);color:#fff;padding:12px 14px;
  display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
.khw__head b{font-size:13.5px;display:block;line-height:1.3}
.khw__head small{display:block;font-size:11px;color:#9FB6CB;font-weight:400;margin-top:2px}
.khw__x{background:transparent;border:0;color:#9FB6CB;font-size:20px;line-height:1;
  cursor:pointer;padding:0 2px;transition:color .16s}
.khw__x:hover{color:#fff}

.khw__qr{padding:14px 14px 12px;text-align:center;border-bottom:1px solid var(--line)}
.khw__qr img{width:100%;max-width:168px;margin:0 auto 9px;display:block;  border:1px solid var(--line);border-radius:8px}
.khw__qr p{margin:0;font-size:11.5px;color:var(--muted);line-height:1.45}
.khw__qr b{display:block;color:var(--ink);font-size:13px;margin-top:3px;letter-spacing:.01em}

/* QR-only card: no header, no rows, no socials — just the code and its caption */
.khw__card--qr{position:relative;padding:0;overflow:hidden}
.khw__card--qr .khw__qr{border-bottom:0;padding:16px 14px 15px}
.khw__card--qr .khw__x{
  position:absolute;top:3px;right:9px;z-index:2;color:#9AA6B2;font-size:22px;
}
.khw__card--qr .khw__x:hover{color:var(--navy)}

.khw__rows{display:grid;gap:1px;background:var(--line)}
.khw__row{display:flex;align-items:center;gap:9px;padding:11px 14px;background:#fff;
  color:var(--ink);font-weight:600;font-size:13px;text-decoration:none!important;transition:background .16s,color .16s}
.khw__row:hover{background:var(--navy-050);color:var(--navy)}
.khw__row svg{width:16px;height:16px;flex:0 0 16px;fill:currentColor}
.khw__row span{margin-left:auto;font-size:11px;color:var(--muted);font-weight:400}

.khw__soc{display:flex;gap:7px;justify-content:center;padding:11px;background:#fff}

.khw__fab{width:58px;height:58px;border-radius:50%;background:var(--accent);color:#fff;
  border:0;cursor:pointer;display:grid;place-items:center;position:relative;
  box-shadow:0 12px 30px rgba(10,22,34,.30);transition:background .18s,transform .18s}
.khw__fab:hover{background:var(--accent-600);transform:translateY(-2px)}
.khw__fab svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round}
.khw__fab::after{content:"";position:absolute;inset:-5px;border-radius:50%;
  border:2px solid rgba(31,90,166,.35);animation:khw-pulse 2.6s ease-out infinite;pointer-events:none}
@keyframes khw-pulse{0%{transform:scale(.92);opacity:.85}70%{transform:scale(1.2);opacity:0}100%{opacity:0}}

@media (max-width:560px){
  .khw{right:12px;bottom:12px;gap:9px}
  .khw__card{width:calc(100vw - 24px);max-width:300px}
  .khw__fab{width:52px;height:52px}
}

/* ==========================================================================
   Distributor application page
   ========================================================================== */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(20px,3vw,34px);box-shadow:var(--sh-sm)}
.form-card h2{margin-top:0;font-size:clamp(20px,2vw,26px)}
.form-card .form{margin-top:18px}
.form-section{font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent-600);margin:22px 0 4px;padding-bottom:8px;border-bottom:1px solid var(--line)}
.form-section:first-of-type{margin-top:6px}
.radio-row{display:flex;flex-wrap:wrap;gap:10px 18px}
.radio-row label{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:500;
  color:var(--body);cursor:pointer;margin:0}
.radio-row input{accent-color:var(--accent);width:16px;height:16px;margin:0}

.benefit{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.benefit:last-child{border-bottom:0}
.benefit__n{flex:0 0 30px;width:30px;height:30px;border-radius:8px;background:var(--navy-050);
  color:var(--navy);display:grid;place-items:center;font-size:13px;font-weight:700}
.benefit h3{font-size:15px;margin:0 0 3px}
.benefit p{font-size:13.5px;margin:0;color:var(--body)}

/* ==========================================================================
   Footer QR + page head with banner artwork
   ========================================================================== */
.footer__qr-col{display:flex;justify-content:flex-start;align-items:flex-start}
.footer__qr-link{display:block;line-height:0}
.footer__qr-link img{width:148px;height:148px;border-radius:10px;background:#fff;
  padding:8px;display:block;transition:transform .18s,box-shadow .18s}
.footer__qr-link:hover img{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,0,0,.35)}
@media (max-width:900px){
  .footer__qr-link img{width:136px;height:136px}
}
@media (max-width:560px){
  .footer__qr-link img{width:124px;height:124px}
}

.page-head[style*="background-image"]{background-size:cover;background-position:center right}
.page-head[style*="background-image"]::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(6,14,22,.94) 0%,rgba(6,14,22,.78) 52%,rgba(6,14,22,.30) 100%);
}

/* ==========================================================================
   Partner hero (distributor page) — light, map background, floating products
   ========================================================================== */
.partner-hero{
  position:relative;overflow:hidden;
  background:#FAFBFD url('../img/hero-map.jpg') center center/cover no-repeat;
  padding-block:clamp(30px,4vw,64px);
}
.partner-hero__inner{
  position:relative;
  display:grid;grid-template-columns:minmax(0,360px) 1fr 300px;
  gap:clamp(16px,2vw,32px);align-items:center;
  min-height:clamp(400px,42vw,600px);
}
.partner-hero__copy{grid-column:1;position:relative;z-index:2}
.partner-hero__copy .eyebrow{color:var(--accent-600)}
.partner-hero__copy h1{
  font-size:clamp(27px,3.5vw,52px);line-height:1.04;letter-spacing:-.025em;
  text-transform:uppercase;margin:0 0 10px;color:var(--navy);
}
.partner-hero__sub{
  font-size:clamp(16px,1.85vw,25px);font-weight:600;color:#3B4E61;
  margin:0 0 16px;line-height:1.25;
}
.partner-hero__copy p{font-size:15px;color:var(--body);max-width:40ch;margin:0 0 22px}

.partner-hero__card{
  grid-column:3;position:relative;z-index:2;
  background:#fff;border-radius:14px;padding:24px 22px;
  box-shadow:0 18px 46px rgba(10,22,34,.16);
}
.partner-hero__card h2{font-size:16.5px;margin:0;color:var(--navy)}
.partner-hero__card .rule{width:44px;height:3px;background:var(--accent);margin:10px 0 6px}
.partner-hero__card ul{list-style:none;margin:0;padding:0}
.partner-hero__card li{
  font-size:13.5px;color:#3A4A5C;padding:11px 0;border-bottom:1px solid var(--line);
}
.partner-hero__card li:last-child{border-bottom:0;padding-bottom:0}

/* product collage — percentages measured against the container box */
.partner-hero__art{position:absolute;inset:0;z-index:1;pointer-events:none}
.partner-hero__art img{
  position:absolute;transform:translate(-50%,-50%);
  filter:drop-shadow(0 16px 28px rgba(22,40,64,.18));
}
.partner-hero__art .ph-chute{left:56%;top:30%;width:23%}
.partner-hero__art .ph-belt{left:62%;top:70%;width:18%}
.partner-hero__art .ph-f20{left:42%;top:47%;width:15%}
.partner-hero__art .ph-c16{left:50%;top:77%;width:13%}
.partner-hero__art .ph-feed{left:37%;top:74%;width:10.5%}

/* category line inside the hero copy */
.partner-hero__cats{
  display:flex;flex-wrap:wrap;gap:6px 16px;margin:0 0 20px;padding:0;list-style:none;
}
.partner-hero__cats li{
  position:relative;padding-left:13px;margin:0;
  font-size:11.5px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:#7C8FA3;
}
.partner-hero__cats li::before{
  content:"";position:absolute;left:0;top:.55em;width:5px;height:5px;border-radius:50%;
  background:var(--accent);
}

@media (max-width:1100px){
  .partner-hero__art .ph-feed{display:none}
}
@media (max-width:900px){
  .partner-hero__inner{grid-template-columns:1fr;min-height:0}
  .partner-hero__copy,.partner-hero__card{grid-column:1}
  .partner-hero__card{margin-top:26px;max-width:420px}
  .partner-hero__art{position:static;display:grid;grid-template-columns:repeat(2,1fr);
    gap:10px;margin-top:26px;order:3}
  .partner-hero__art img{position:static;transform:none;width:100%!important}
  .partner-hero__art .ph-feed{display:block}
  .partner-hero{background-size:auto 130%}
}

/* ==========================================================================
   Home hero poster — full-bleed artwork with the copy laid over it.
   The artwork already contains the map, the products and the white card, so
   every overlay is positioned in % of a 16:9 stage and scales with it.
   ========================================================================== */
.hero-poster{background:#F2F2F2}
.hero-poster__stage{position:relative;width:100%;max-width:2100px;margin:0 auto;aspect-ratio:1920/905;overflow:hidden}
.hero-poster__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}

.hero-poster__copy{position:absolute;left:5.4%;top:23%;width:37%;z-index:2}
.hero-poster__copy .eyebrow{font-size:clamp(9px,.78vw,14px);margin:0 0 .9em;letter-spacing:.14em}
.hero-poster__copy h1{
  font-size:clamp(19px,3.6vw,57px);line-height:1.07;letter-spacing:-.022em;
  margin:0 0 .4em;color:#152A40;
}
.hero-poster__cats{display:flex;flex-wrap:wrap;gap:.45em 1.2em;margin:0 0 1.1em;padding:0;list-style:none}
.hero-poster__cats li{
  position:relative;padding-left:.9em;margin:0;
  font-size:clamp(8px,.7vw,12px);font-weight:700;letter-spacing:.06em;
  text-transform:uppercase;color:#7C8FA3;
}
.hero-poster__cats li::before{
  content:"";position:absolute;left:0;top:.55em;width:.36em;height:.36em;
  border-radius:50%;background:var(--accent);
}
.hero-poster__sub{
  font-size:clamp(11px,1.25vw,20px);font-weight:600;color:#3B4E61;
  margin:0 0 .9em;line-height:1.25;
}
.hero-poster__text{
  font-size:clamp(10px,.93vw,15px);line-height:1.6;color:#5C6E80;
  margin:0 0 1.5em;max-width:34em;
}
.hero-poster__copy .btn{font-size:clamp(9px,.82vw,14px);padding:.9em 1.6em;border-radius:2px}
.hero-poster__copy .btn-row{gap:.6em;margin:0}

.hero-poster__card{
  position:absolute;left:75%;top:54%;width:20.5%;bottom:4%;
  background:#fff;z-index:2;display:flex;flex-direction:column;
  padding:1.35% 1.15% 1%;border-radius:2px;
  box-shadow:0 18px 46px rgba(20,35,55,.10);
}
.hero-poster__card h2{font-size:clamp(9px,.92vw,15px);margin:0;color:#152A40;line-height:1.3}
.hero-poster__card .rule{width:22%;height:2px;background:var(--accent);margin:.6em 0 .5em}
.hero-poster__card ul{
  list-style:none;margin:0;padding:0;flex:1;
  display:flex;flex-direction:column;justify-content:space-evenly;
}
.hero-poster__card li{
  font-size:clamp(8px,.8vw,13px);color:#3A4A5C;line-height:1.35;
  padding:.55em 0;border-bottom:1px solid #E4E8ED;
}
.hero-poster__card li:last-child{border-bottom:0}

/* --- mobile: same picture, copy laid over it ------------------------------ */
@media (max-width:900px){
  .hero-poster__stage{
    display:block;aspect-ratio:auto;position:relative;padding:0 0 26px;max-width:none;
  }
  .hero-poster__bg{
    position:absolute;top:0;left:0;width:100%;z-index:0;
    height:clamp(360px,96vw,470px);
    object-fit:cover;object-position:62% 18%;
  }
  /* fade the picture into the page so the copy stays legible where it overlaps */
  .hero-poster__stage::before{
    content:"";position:absolute;top:0;left:0;right:0;z-index:1;pointer-events:none;
    height:clamp(360px,96vw,470px);
    background:linear-gradient(180deg,
      rgba(242,242,242,0) 24%,
      rgba(242,242,242,.55) 52%,
      rgba(242,242,242,.94) 76%,
      #F2F2F2 100%);
  }
  .hero-poster__copy{
    position:relative;z-index:2;margin:0 18px;width:auto;
    top:auto;left:auto;bottom:auto;
    padding-top:clamp(168px,46vw,228px);
  }
  .hero-poster__copy h1{font-size:clamp(23px,6.2vw,38px);margin-bottom:.35em}
  .hero-poster__copy .eyebrow{font-size:11px;margin-bottom:.7em}
  .hero-poster__cats{margin-bottom:.9em}
  .hero-poster__cats li{font-size:10px}
  .hero-poster__text{font-size:14px;margin-bottom:1.2em}
  .hero-poster__sub{font-size:15px;margin-bottom:.7em}
  .hero-poster__copy .btn{font-size:14px;padding:12px 20px}
  .hero-poster__copy .btn-row{flex-wrap:wrap}

  .hero-poster__card{
    position:relative;z-index:2;margin:20px 18px 0;width:auto;
    top:auto;left:auto;bottom:auto;
    border:1px solid #E4E8ED;border-radius:12px;padding:20px 18px;
    box-shadow:none;
  }
  .hero-poster__card h2{font-size:16px}
  .hero-poster__card ul{display:block}
  .hero-poster__card li{font-size:13.5px;padding:10px 0}
}
.khmap{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(14px,2.4vw,28px);box-shadow:var(--sh-sm)}
.khmap__canvas{width:100%;aspect-ratio:2/1;min-height:260px}
.khmap__canvas:empty{display:none}
.khmap .jvm-container{background:transparent!important}
.khmap__list{list-style:none;display:flex;flex-wrap:wrap;gap:8px;justify-content:center;
  margin:20px 0 0;padding:0}
.khmap__list li{display:inline-flex;align-items:center;gap:7px;background:var(--navy-050);
  border:1px solid var(--line);border-radius:999px;padding:7px 14px;
  font-size:13px;font-weight:600;color:var(--ink);margin:0}
.khmap__list li::before{content:"";width:7px;height:7px;border-radius:50%;
  background:var(--accent);flex:0 0 7px}
@media (max-width:700px){
  .khmap__canvas{aspect-ratio:4/3;min-height:210px}
  .khmap__list li{font-size:12px;padding:6px 11px}
}

/* ==========================================================================
   Live-chat provider offset
   Tawk.to / Crisp / most providers park their bubble in the bottom-right
   corner. When one is embedded the body carries .kh-has-livechat and our own
   contact widget moves up so the two do not sit on top of each other.
   ========================================================================== */
.kh-has-livechat .khw{bottom:96px}
@media (max-width:560px){
  .kh-has-livechat .khw{bottom:86px}
}