/*
Theme Name: VOLTDRIVE
Theme URI: https://voltdrive.example
Description: 外贸电池与电动车批发多语言站主题（WordPress + Polylang，支持英/西/阿/俄/中，阿拉伯语自动 RTL）
Version: 1.2.6
Requires at least: 5.8
Tested up to: 6.6
Requires PHP: 7.4
License: MIT
Text Domain: voltdrive
*/

:root{
  --navy:#0f2a43;
  --navy-2:#16395c;
  --green:#16a34a;
  --green-d:#0f7a37;
  --orange:#f97316;
  --orange-d:#ea670c;
  --ink:#1f2933;
  --muted:#647082;
  --line:#e3e8ef;
  --bg:#ffffff;
  --bg-soft:#f5f8fb;
  --radius:14px;
  --shadow:0 10px 30px rgba(15,42,67,.08);
  --maxw:1200px;
  /* v1.1.0 — overridden per region in inc/region.php */
  --sec-pad:72px;
  --fs-body:16px;
  --lh:1.65;
  --tint:rgba(22,163,74,.12);
  --tint-2:rgba(22,163,74,.15);
  --hero-glow:rgba(22,163,74,.35);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:var(--lh);
  font-size:var(--fs-body);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green-d);text-decoration:none}
a:hover{color:var(--orange-d)}
h1,h2,h3,h4{line-height:1.2;color:var(--navy);margin:0 0 .5em}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-999px}
.skip-link:focus{left:10px;top:10px;background:#fff;padding:8px 12px;z-index:99;border-radius:6px}

/* Buttons */
.btn{display:inline-block;padding:13px 24px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:2px solid transparent;transition:.2s}
.btn-accent{background:var(--orange);color:#fff}
.btn-accent:hover{background:var(--orange-d);color:#fff}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-d);color:#fff}
.btn-ghost{background:transparent;border-color:#fff;color:#fff}
.btn-ghost:hover{background:#fff;color:var(--navy)}
.btn-outline{border-color:var(--green);color:var(--green-d);background:transparent}
.btn-outline:hover{background:var(--green);color:#fff}

/* Header */
.site-header{position:sticky
.brand-text{display:inline-flex;font-weight:800;font-size:22px;letter-spacing:-.5px;text-decoration:none;color:var(--ink)}
.brand-text .brand-first{color:var(--orange)}
.brand-text .brand-rest{color:var(--green)}
.brand-text:hover{color:var(--ink)}
;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;font-weight:800;font-size:22px;color:var(--navy);letter-spacing:.5px}
.brand span{color:var(--green)}
.brand img{max-height:40px;width:auto}
.primary-nav{margin-left:auto}
.nav-menu{list-style:none;display:flex;gap:26px;margin:0;padding:0}
.nav-menu a{color:var(--navy);font-weight:600;font-size:15px;padding:6px 0;position:relative}
.nav-menu a:hover{color:var(--green-d)}
.nav-menu li.current-menu-item>a{color:var(--green-d)}
.header-actions{display:flex;align-items:center;gap:14px}
.menu-toggle{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--navy)}

/* Dropdown sub-menus (B2B trade-portal style) */
.nav-menu>li{position:relative}
.nav-menu .sub-arrow{display:inline-block;font-size:9px;margin-left:4px;opacity:.7;transition:transform .18s ease}
.nav-menu .sub-menu{
  position:absolute;top:100%;left:-14px;min-width:210px;z-index:60;
  list-style:none;margin:8px 0 0;padding:8px;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  box-shadow:0 14px 32px rgba(15,42,67,.16);
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.nav-menu li.menu-item-has-children:hover>.sub-menu,
.nav-menu li.menu-item-has-children:focus-within>.sub-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-menu li.menu-item-has-children:hover>a .sub-arrow{transform:rotate(180deg)}
.nav-menu .sub-menu li{margin:0}
.nav-menu .sub-menu a{
  display:block;padding:9px 12px;font-size:14px;font-weight:500;
  border-radius:7px;white-space:nowrap;color:var(--navy);
}
.nav-menu .sub-menu a:hover{background:var(--bg-soft);color:var(--green-d)}
.nav-menu .sub-menu li.current-menu-item>a{background:var(--bg-soft);color:var(--green-d);font-weight:600}
/* bridge so the pointer can travel from trigger to panel without closing it */
.nav-menu .sub-menu::before{content:"";position:absolute;top:-10px;left:0;right:0;height:10px}

/* Language switcher (dropdown) */
/* v1.1.1 — language dropdown. Links are real <a href>, so switching works
   even with JavaScript disabled; JS only adds open/close behaviour. */
.lang-switcher{position:relative;display:inline-flex;align-items:center}
.lang-btn{display:inline-flex;align-items:center;gap:7px;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:7px 13px;font:inherit;font-size:13px;font-weight:600;color:var(--navy);cursor:pointer;line-height:1;white-space:nowrap}
.lang-btn:hover{border-color:var(--navy)}
.lang-btn:focus-visible{outline:2px solid var(--green);outline-offset:2px}
.lang-caret{font-size:10px;opacity:.65;transition:transform .18s ease}
.lang-switcher.open .lang-caret{transform:rotate(180deg)}
.lang-menu{position:absolute;top:calc(100% + 8px);right:0;z-index:120;min-width:172px;margin:0;padding:6px;list-style:none;background:var(--bg);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(-4px);transition:opacity .16s ease,transform .16s ease,visibility .16s}
.lang-switcher.open .lang-menu{opacity:1;visibility:visible;transform:translateY(0)}
.lang-link{display:flex;align-items:center;gap:9px;padding:9px 11px;border-radius:8px;font-size:14px;color:var(--ink);text-decoration:none;white-space:nowrap}
.lang-link:hover{background:var(--bg-soft);color:var(--navy)}
.lang-link.is-current{color:var(--green);font-weight:700;background:var(--tint)}
.lang-flag{font-size:15px;line-height:1}
.lang-check{margin-inline-start:auto;font-size:12px;color:var(--green)}
@media(max-width:600px){.lang-btn .lang-name{display:none}.lang-menu{min-width:150px}}

/* Hero */
.hero{position:relative;background:radial-gradient(1200px 600px at 80% -10%,var(--hero-glow),transparent),linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:46px 46px;opacity:.4}
.hero-inner{position:relative;padding:calc(var(--sec-pad) * 1.15) 0 calc(var(--sec-pad) * 1.25);display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{color:#fff;font-size:42px;margin-bottom:18px}
.hero p{color:rgba(255,255,255,.85);font-size:18px;max-width:560px}
.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-stats{display:flex;gap:30px;margin-top:38px;flex-wrap:wrap}
.hero-stats div{font-size:14px;color:rgba(255,255,255,.8)}
.hero-stats b{display:block;font-size:28px;color:#fff}
.hero-visual{position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:20px;padding:26px;backdrop-filter:blur(4px)}
.hero-visual .ev{font-size:64px;text-align:center;margin-bottom:8px}
.hero-visual .tag{display:inline-block;background:var(--green);color:#fff;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;margin:4px}

/* Sections */
.section{padding:var(--sec-pad) 0}
.section.soft{background:var(--bg-soft)}
.section-head{text-align:center;max-width:680px;margin:0 auto 44px}
.section-head h2{font-size:32px}
.section-head p{color:var(--muted);font-size:17px}

/* Category cards */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);transition:.2s}
.cat-card:hover{transform:translateY(-4px);border-color:var(--green)}
.cat-icon{font-size:42px;margin-bottom:10px}
.cat-card h3{font-size:22px}
.cat-card p{color:var(--muted)}
.cat-card .more{margin-top:14px;font-weight:600;color:var(--green-d)}

/* Feature grid */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.2s}
.feature:hover{box-shadow:var(--shadow);border-color:var(--green)}
.feature .ico{width:48px;height:48px;border-radius:12px;background:var(--tint);color:var(--green-d);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:14px}
.feature h3{font-size:18px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:15px;margin:0}

/* Certifications */
.cert{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px}
.cert span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 18px;font-weight:700;color:var(--navy);font-size:14px}

/* Process steps */
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.process-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative;transition:.2s}
.process-step:hover{box-shadow:var(--shadow);border-color:var(--green);transform:translateY(-4px)}
.process-step .step-no{width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin-bottom:14px}
.process-step h3{font-size:18px;margin-bottom:8px}
.process-step p{color:var(--muted);font-size:14px;margin:0}

/* Stats band */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}
.stat{background:linear-gradient(135deg,var(--navy),var(--navy-2));color:#fff;border-radius:var(--radius);padding:26px;text-align:center}
.stat b{display:block;font-size:34px;line-height:1;margin-bottom:6px}
.stat{font-size:14px;color:rgba(255,255,255,.85)}

/* Markets */
.market-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:26px}
.market-tags span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 16px;font-weight:600;color:var(--navy);font-size:14px}

/* Testimonials */
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testi{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;display:flex;flex-direction:column;gap:14px}
.testi-q{font-size:15px;color:var(--ink);margin:0;flex:1}
.testi-by{display:flex;flex-direction:column}
.testi-by b{color:var(--navy);font-size:15px}
.testi-by span{color:var(--muted);font-size:13px}

/* About */
.about-story{max-width:820px;margin:0 auto;text-align:center;font-size:18px;color:var(--muted)}
.about-mission{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:30px;max-width:860px;margin:34px auto 0;text-align:center}
.about-mission h3{font-size:22px;margin-bottom:10px}
.about-mission p{color:var(--muted);margin:0}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.value{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.2s}
.value:hover{box-shadow:var(--shadow);border-color:var(--green)}
.value h3{font-size:19px;margin-bottom:8px}
.value p{color:var(--muted);font-size:15px;margin:0}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:0}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;color:var(--navy);font-size:16px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";font-size:22px;color:var(--green);font-weight:700}
.faq-item[open] summary:after{content:"\2212"}
.faq-a{padding:0 22px 18px;color:var(--muted);font-size:15px;margin:0}

/* Contact extras */
.map-box{background:linear-gradient(135deg,var(--navy),var(--navy-2));border-radius:var(--radius);padding:48px 24px;margin-top:18px;text-align:center}
.map-note{color:rgba(255,255,255,.9);font-size:15px}
.social-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:16px;font-size:14px;color:var(--navy);font-weight:600}
.social-row a{background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:6px 14px;color:var(--green-d);font-weight:600;font-size:13px}
.social-row a:hover{background:var(--green);color:#fff;border-color:var(--green)}
.site-footer .social-row a{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:#fff}
.site-footer .social-row a:hover{background:var(--orange);border-color:var(--orange)}

/* Help Center */
.help-cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.help-cat-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 6px 20px rgba(2,16,36,.05);transition:transform .15s ease,box-shadow .15s ease}
.help-cat-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(2,16,36,.10);border-color:var(--green)}
.help-cat-card h3{margin:0 0 8px;color:var(--navy)}
.help-cat-card p{color:var(--muted);font-size:14px;margin:0 0 12px}
.help-cat-count{display:inline-block;font-size:12px;font-weight:700;color:var(--green-d);background:var(--bg-soft);border-radius:999px;padding:3px 12px}
.help-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.help-post{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .15s ease,box-shadow .15s ease}
.help-post:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(2,16,36,.10);border-color:var(--green)}
.help-post-cover{height:170px;background:var(--bg-soft);overflow:hidden}
.help-post-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.help-post:hover .help-post-cover img{transform:scale(1.05)}
.help-post-body{flex:1;padding:22px}
/* Article cover on the single view */
.help-cover{margin:18px 0 22px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.help-cover img{width:100%;height:auto;display:block}
.help-post-body h3{margin:0 0 8px;color:var(--navy);font-size:18px}
.help-post-body p{color:var(--muted);font-size:14px;margin:0 0 12px}
.help-read{font-weight:700;color:var(--green-d);font-size:14px}
.help-tabs{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 22px}
.help-tab{background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:8px 18px;color:var(--navy);font-weight:600;font-size:14px}
.help-tab:hover{color:var(--green-d);border-color:var(--green)}
.help-tab.is-active{background:var(--green);border-color:var(--green);color:#fff}
.help-crumb{margin:0 0 14px;font-weight:600}
.help-crumb a{color:var(--green-d)}
.help-article h1{color:var(--navy);margin:0 0 10px}
.help-meta{color:var(--muted);font-size:14px;margin-bottom:18px}
.help-meta a{color:var(--green-d);font-weight:600}
.help-meta .dot{margin:0 6px}
.help-content{color:var(--ink);font-size:16px;line-height:1.8}
.help-content img{max-width:100%;height:auto;border-radius:var(--radius)}

@media (max-width:680px){
  .help-cats,.help-list{grid-template-columns:1fr}
}

/* CTA band */
.cta-band{background:linear-gradient(135deg,var(--green),var(--green-d));color:#fff;text-align:center;padding:56px 20px}
.cta-band h2{color:#fff;font-size:30px}
.cta-band p{color:rgba(255,255,255,.9);max-width:620px;margin:0 auto 24px}

/* Product grid */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.product-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.product-thumb{height:180px;background:linear-gradient(135deg,var(--navy),var(--navy-2));display:flex;align-items:center;justify-content:center;font-size:56px;color:rgba(255,255,255,.9);overflow:hidden}
/* Real uploaded image: fill the card, no gradient */
.product-thumb.has-img{background:var(--bg-soft);padding:0}
.product-thumb.has-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.product-card:hover .product-thumb.has-img img{transform:scale(1.05)}
.product-body{padding:20px;display:flex;flex-direction:column;gap:6px;flex:1}
.product-body h3{font-size:18px;margin:0}
.product-body .cat{font-size:12px;color:var(--green-d);font-weight:700;text-transform:uppercase}
.product-body .prod-model{display:inline-block;font-size:12px;font-weight:700;color:var(--muted);background:var(--bg-soft);border-radius:4px;padding:2px 8px;margin:2px 0 2px}
.product-body .excerpt{color:var(--muted);font-size:14px;flex:1}
.product-meta{display:flex;justify-content:space-between;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;margin-top:6px}
.product-meta b{color:var(--navy)}

/* Single product */
.single-product .product-hero{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.single-product .product-thumb.no-img{height:340px;border-radius:var(--radius);font-size:88px}

/* Product image gallery */
.product-gallery{display:flex;flex-direction:column;gap:12px}
.pg-main{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center}
.pg-main img{width:100%;height:100%;object-fit:cover;display:block}
.pg-thumbs{display:flex;gap:10px;flex-wrap:wrap}
.pg-thumb{width:74px;height:60px;padding:0;border:2px solid var(--line);border-radius:8px;overflow:hidden;background:var(--bg-soft);cursor:pointer;transition:border-color .15s ease}
.pg-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.pg-thumb:hover{border-color:var(--navy)}
.pg-thumb.is-active{border-color:var(--green)}
.spec-table{width:100%;border-collapse:collapse;margin-top:10px}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:10px 12px;text-align:left;font-size:14px}
.spec-table th{background:var(--bg-soft);width:38%}
.inquiry-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-top:20px}

.inquiry-box .ib-head h3{margin:0 0 6px;font-size:19px;color:var(--navy)}
.inquiry-box .ib-note{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.inquiry-box .ib-terms{list-style:none;margin:16px 0 0;padding:14px 0 0;border-top:1px dashed var(--line);display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px 18px}
.inquiry-box .ib-terms li{display:flex;flex-direction:column;gap:3px;font-size:14px}
.inquiry-box .ib-terms li span{color:var(--muted);font-size:12px;letter-spacing:.03em;text-transform:uppercase}
.inquiry-box .ib-terms li b{color:var(--navy);font-size:14px}
.inquiry-box .ib-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.inquiry-box .ib-actions .btn{padding:12px 22px;font-size:14px}
.inquiry-box .ib-fine{margin:12px 0 0;font-size:12px;color:var(--muted);line-height:1.6}
@media(max-width:600px){.inquiry-box .ib-actions .btn{width:100%;text-align:center}}

/* Forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1/-1}
.field label{font-weight:600;font-size:14px;color:var(--navy)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px var(--tint-2)}
.form-note{font-size:13px;color:var(--muted)}
.form-success{background:var(--tint);border:1px solid var(--green);color:var(--green-d);padding:14px 16px;border-radius:10px;margin-bottom:16px;font-weight:600}
.form-error{background:rgba(220,38,38,.1);border:1px solid #dc2626;color:#b91c1c;padding:12px 16px;border-radius:10px;margin-bottom:16px;font-weight:600}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:start}
.contact-info{background:var(--navy);color:#fff;border-radius:var(--radius);padding:30px}
.contact-info h3{color:#fff}
.contact-info a{color:#fff;font-weight:600}
.contact-info a:hover{color:var(--orange)}
.contact-row{display:flex;gap:12px;margin-bottom:14px;align-items:flex-start}
.contact-row .ico{font-size:20px}

/* Footer */
.site-footer{background:var(--navy);color:rgba(255,255,255,.8);padding:54px 0 26px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:14px;text-transform:uppercase;letter-spacing:.5px}
.site-footer a{color:rgba(255,255,255,.8)}
.site-footer a:hover{color:var(--orange)}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-brand{font-size:22px;font-weight:800;color:#fff}
.footer-brand span{color:var(--green)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;font-size:13px;color:rgba(255,255,255,.6);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* Responsive */
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;padding:60px 0}
  .hero h1{font-size:34px}
  .cat-grid,.feature-grid,.product-grid,.footer-grid,.contact-grid,.single-product .product-hero,.process-steps,.stats-band,.testimonials,.value-grid{grid-template-columns:1fr}
  .primary-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:10px 20px}
  .primary-nav.open{display:block}
  .nav-menu{flex-direction:column;gap:4px}
  .nav-menu a{padding:10px 0;display:block}
  .menu-toggle{display:block}

  /* Mobile: sub-menus expand inline (hover is unusable on touch) */
  .nav-menu .sub-menu{
    position:static;min-width:0;display:none;
    opacity:1;visibility:visible;transform:none;
    margin:2px 0 8px;padding:0 0 0 12px;
    border:0;border-left:2px solid var(--line);border-radius:0;
    box-shadow:none;
  }
  .nav-menu li.menu-item-has-children:hover>.sub-menu,
  .nav-menu li.menu-item-has-children:focus-within>.sub-menu,
  .nav-menu li.menu-item-has-children.open-sub>.sub-menu{display:block}
  .nav-menu .sub-menu::before{display:none}
  .nav-menu .sub-menu a{white-space:normal;padding:8px 0;font-size:14px;font-weight:500}
  .nav-menu .sub-arrow{float:right;padding:6px 4px;font-size:12px;margin:0}
  .header-actions .btn-accent{display:none}
}
@media (max-width:560px){
  .form-grid{grid-template-columns:1fr}
  .hero-stats{gap:18px}
  .section{padding:54px 0}
}

/* Related products — e-commerce "you may also like" */
.related-products{margin-top:56px;padding-top:36px;border-top:1px solid var(--line)}
.related-title{font-size:22px;color:var(--navy);margin:0 0 8px}
.related-intro{color:var(--muted);font-size:15px;margin:0 0 22px}

/* Self-contained inquiry form (theme-owned, no plugin required) */
.vd-inquiry-form{margin-top:22px}
.vd-inquiry-form .form-grid{margin-top:4px}
.vd-inq-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;opacity:0}
.vd-inq-msg{margin:4px 0 0;font-size:14px;font-weight:600;min-height:1px}
.vd-inq-msg.form-success{color:var(--green-d);background:var(--tint);border:1px solid var(--green);padding:12px 14px;border-radius:10px;margin-top:14px}
.vd-inq-msg.form-error{color:#b91c1c;background:rgba(220,38,38,.1);border:1px solid #dc2626;padding:12px 14px;border-radius:10px;margin-top:14px}
.vd-inquiry-form .vd-inq-submit{margin-top:16px;width:100%}
@media(max-width:560px){.vd-inquiry-form .vd-inq-submit{width:100%}}

/* Product edit screen: grouped spec headings */
.vd-spec-group{margin:18px 0 6px;font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--green-d)}

/* Admin: related-products checklist */
.vd-related-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:6px 18px;max-height:260px;overflow:auto;padding:10px;border:1px solid var(--line);border-radius:6px;background:var(--bg-soft)}
.vd-related-item{display:block;font-size:13px;line-height:1.5}

/* Product SEO / keyword block (front-end, AI-generated) */
.product-keywords{margin-top:30px;padding:22px 24px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(180deg,var(--bg),var(--bg-soft))}
.kw-title{font-size:18px;color:var(--navy);margin:0 0 14px}
.kw-group{margin-bottom:16px}
.kw-label{display:block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--green-d);margin-bottom:8px}
.kw-country{margin:10px 0}
.kw-country>b{display:block;font-size:13px;color:var(--navy);margin-bottom:6px}
.kw-chips{display:flex;flex-wrap:wrap;gap:8px}
.kw-chip{display:inline-block;padding:5px 12px;border-radius:999px;background:var(--tint);color:var(--green-d);border:1px solid var(--line);font-size:13px;white-space:nowrap}
.kw-geo{font-size:13px;color:var(--muted)}
.kw-geo .kw-label{display:inline;margin:0}

/* Content Studio — product AI assistant */
.vdcs-pai-hint{font-size:13px;line-height:1.6;color:var(--ink);background:var(--bg-soft);border-left:3px solid var(--green-d);padding:10px 12px;border-radius:4px}
.vdcs-pai-countries{display:flex;flex-wrap:wrap;gap:6px 16px;margin:4px 0}
.vdcs-pai-country{font-size:13px;display:inline-flex;align-items:center;gap:5px}


/* ----------------------------------------------------------
   v1.2.4  Product description (image + text mode)
   Full-width rich content pulled out of the right hero column.
   Editors can mix paragraphs, headings, lists and Gutenberg
   images (set to "wide" alignment for in-line image+text).
   ---------------------------------------------------------- */
.product-description{
  margin-top:0;
  padding:0 0 14px;
  border-top:0;
}
.product-description-inner{
  max-width:980px;
  margin:0 auto;
  padding:0 8px;
}
.pd-title{
  font-size:24px;
  color:var(--navy);
  margin:0 0 18px;
  letter-spacing:.01em;
}
.pd-body{font-size:15.5px;line-height:1.75;color:var(--ink)}
.pd-body p{margin:0 0 16px}
.pd-body h2,.pd-body h3,.pd-body h4{
  color:var(--navy);
  margin:28px 0 12px;
  line-height:1.3;
  font-weight:800
}
.pd-body h2{font-size:22px}
.pd-body h3{font-size:18px}
.pd-body h4{font-size:16px}
.pd-body ul,.pd-body ol{margin:0 0 16px;padding-left:24px}
.pd-body li{margin:6px 0}
.pd-body img,.pd-body figure{max-width:100%;height:auto;border-radius:var(--radius);display:block;margin:18px auto;border:1px solid var(--line)}
.pd-body figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.pd-body blockquote{
  margin:18px 0;padding:14px 20px;border-left:4px solid var(--green-d);
  background:var(--tint);color:var(--ink);font-style:italic;border-radius:0 8px 8px 0
}
.pd-body table{
  width:100%;border-collapse:collapse;margin:18px 0;font-size:14px
}
.pd-body table th,.pd-body table td{
  border:1px solid var(--line);padding:8px 12px;text-align:left
}
.pd-body table th{background:var(--bg-soft);color:var(--navy)}
.pd-body a{color:var(--green-d);text-decoration:underline;text-underline-offset:3px}
.pd-body a:hover{color:var(--navy)}
.pd-body code{background:var(--bg-soft);padding:2px 6px;border-radius:4px;font-size:13.5px}

/* ----------------------------------------------------------
   v1.2.4  Related products — inline tag row + hidden SEO
   ---------------------------------------------------------- */
.related-meta{margin:6px 0 26px}
.related-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;
  font-size:13px;color:var(--muted)
}
.related-tags .rt-label{
  font-weight:700;text-transform:uppercase;font-size:11.5px;letter-spacing:.5px;
  color:var(--green-d);margin-inline-end:4px
}
.related-tags .rt-chip{
  display:inline-block;padding:5px 12px;border-radius:999px;
  background:var(--tint);color:var(--green-d);border:1px solid var(--line);
  font-size:13px;line-height:1.4;white-space:nowrap
}

/* Hidden SEO: visually hidden but readable by search-engine crawlers.
   Keeps the page clean for buyers while feeding every long-tail keyword
   and GEO target into the DOM. CSS clip + absolute off-screen position
   keeps content renderable + indexable without taking layout space. */
.related-seo,.related-geo{
  position:absolute!important;
  width:1px!important;height:1px!important;
  padding:0!important;margin:-1px!important;
  overflow:hidden!important;clip:rect(0,0,0,0)!important;
  white-space:nowrap!important;border:0!important;
  color:transparent;font-size:1px;line-height:1px
}
.related-seo .rs-label,.related-geo .rs-label{
  font-weight:700;text-transform:uppercase;font-size:12px;letter-spacing:.5px;
  color:var(--green-d);margin-inline-end:6px
}
.related-seo .rs-kw{display:inline;margin:0 14px 0 0;font-size:13px;color:var(--ink)}
.related-seo .rs-kw b{margin-inline-end:4px}

/* ----------------------------------------------------------
   v1.2.5  Sticky two-column product layout
   LEFT  (product-main) : image+text description + spec table
                          (parameters sit BELOW the description)
   RIGHT (product-aside): sticky inquiry/quote panel that follows
                          the scroll until the section ends.
   ---------------------------------------------------------- */
.product-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;
  align-items:start;
  margin-top:48px;
}
.product-main{min-width:0}
.product-aside{
  position:sticky;
  top:96px;            /* floats under the sticky header, follows scroll */
  align-self:start;
}
.product-aside .inquiry-box{margin-top:0}

/* Spec parameters now live below the description (left column) */
.product-specs{
  margin-top:44px;
  padding-top:30px;
  border-top:1px solid var(--line);
}
.ps-title{
  font-size:22px;
  color:var(--navy);
  margin:0 0 18px;
  letter-spacing:.01em;
}

/* Related product card: link area + quote button */
.product-card .pc-link{
  display:flex;flex-direction:column;flex:1;
  color:inherit;text-decoration:none;
}
.product-card .pc-link:hover h3{color:var(--green-d)}
.product-card .pc-quote{
  margin:0 16px 18px;padding:11px 16px;
  text-align:center;font-size:14px;font-weight:700;
}

@media (max-width:900px){
  .product-layout{grid-template-columns:1fr;gap:36px}
  .product-aside{position:static;top:auto}
}

/* ============================================================
   v1.1.0  Application ("Shop by Application") grid
   Overseas buyers filter by use case first — this block is the
   primary navigation path on the home page.
   ============================================================ */
.app-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.app-card{position:relative;display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px 26px;box-shadow:var(--shadow);transition:.22s;overflow:hidden;text-decoration:none;color:inherit}
.app-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--green);opacity:0;transition:.22s}
.app-card:hover{transform:translateY(-5px);border-color:var(--green);box-shadow:0 16px 34px rgba(15,42,67,.13)}
.app-card:hover:before{opacity:1}
.app-card .app-ico{font-size:36px;line-height:1;margin-bottom:12px}
.app-card h3{font-size:20px;margin-bottom:8px}
.app-card p{color:var(--muted);font-size:14.5px;margin:0 0 16px}
.app-card .app-pts{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px}
.app-card .app-pts li{position:relative;padding-left:20px;font-size:13.5px;color:var(--ink)}
.app-card .app-pts li:before{content:"\2713";position:absolute;left:0;top:0;color:var(--green);font-weight:700}
.app-card .app-go{margin-top:18px;font-weight:600;color:var(--green-d);font-size:14px}

/* ---------- v1.1.0  Compliance strip (region-aware certs) ---------- */
.comp-strip{background:var(--navy);color:#fff;padding:56px 0}
.comp-strip .cs-head{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:6px}
.comp-strip h2{color:#fff;font-size:26px;margin:0}
.comp-strip .cs-hook{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#fff;padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600}
.comp-strip .cs-sub{color:rgba(255,255,255,.78);font-size:15px;max-width:760px;margin:10px 0 30px}
.comp-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.comp-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:16px 18px}
.comp-item b{display:block;font-size:17px;letter-spacing:.02em;margin-bottom:4px}
.comp-item span{display:block;color:rgba(255,255,255,.7);font-size:12.5px;line-height:1.5}

/* ---------- v1.1.0  Scene chips (product detail + archive) ---------- */
.scene-chips{display:flex;flex-wrap:wrap;gap:9px;margin:14px 0 0}
.scene-chips a{display:inline-flex;align-items:center;gap:6px;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:7px 15px;font-size:13px;font-weight:600;color:var(--green-d)}
.scene-chips a:hover{background:var(--green);border-color:var(--green);color:#fff}

/* ---------- v1.1.0  Scene archive header ---------- */
.scene-hero{background:var(--bg-soft);border-bottom:1px solid var(--line);padding:46px 0}
.scene-hero .sh-ico{font-size:44px;line-height:1;margin-bottom:10px}
.scene-hero h1{font-size:32px;margin-bottom:8px}
.scene-hero p{color:var(--muted);max-width:760px;margin:0 0 18px}
.scene-hero .sh-pts{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;margin:0;padding:0}
.scene-hero .sh-pts li{font-size:14px;color:var(--ink)}
.scene-hero .sh-pts li:before{content:"\2713 ";color:var(--green);font-weight:700}

/* ---------- v1.1.0  Regional density fine-tuning ---------- */
.vd-region-cis .app-card{padding:22px 20px}
.vd-region-cis .app-card p{font-size:13.5px}
.vd-region-cis .app-card .app-pts li{font-size:13px}
.vd-region-mena .app-card{padding:32px 30px}
.vd-region-mena .app-card h3{font-size:21px}
.vd-region-latam .app-card{border-radius:18px}
.vd-region-latam .app-card .app-ico{font-size:40px}
.vd-region-naeu .app-card{border-color:var(--line)}
.vd-region-naeu .comp-strip{background:linear-gradient(135deg,var(--navy),var(--navy-2))}
@media(max-width:640px){
  .app-grid{grid-template-columns:1fr}
  .comp-strip{padding:40px 0}
  .scene-hero h1{font-size:26px}
}