/* ==========================================================================
   Shanghai Jingmin Electric Co., Ltd. — global stylesheet
   Palette: industrial navy + signal orange
   ========================================================================== */

:root{
  --navy:#0d2440;
  --navy2:#123256;
  --navy3:#1a4a7a;
  --orange:#f28c1e;
  --orange-d:#d97711;
  --orange-l:#fdf1e2;
  --gray:#f4f6f8;
  --line:#e5eaf0;
  --text:#333;
  --muted:#6b7a8c;
  --white:#fff;
  --radius:8px;
  --shadow:0 3px 12px rgba(13,36,64,.07);
  --shadow-h:0 10px 26px rgba(13,36,64,.14);
  --wrap:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',Arial,'Helvetica Neue',Helvetica,sans-serif;
  color:var(--text);line-height:1.65;background:var(--white);
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ---------- top bar ---------- */
.topbar{background:var(--navy);color:#cfe0f2;font-size:13px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;align-items:center}
.topbar a{color:var(--orange)}
.topbar a:hover{text-decoration:underline}
.topbar .tb-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
/* language dropdown (mirrors the homepage template) */
.lang{position:relative;cursor:pointer;display:inline-flex;align-items:center;gap:6px;font-weight:600;color:#fff}
.lang:hover{color:var(--orange)}
.lang-menu{position:absolute;top:calc(100% + 10px);left:-10px;background:#fff;border-radius:9px;
  box-shadow:0 12px 28px rgba(13,36,64,.18);padding:7px 0;min-width:152px;display:none;z-index:300;text-align:left}
.lang.open .lang-menu{display:block}
.lang-menu a{display:block;padding:7px 16px;font-size:13.5px;font-weight:600;color:var(--navy)}
.lang-menu a:hover{background:var(--gray);text-decoration:none}
.lang-menu a.active{color:var(--orange)}
.lang-menu a small{float:right;color:var(--muted);font-weight:500}

/* ---------- header / nav ---------- */
header{position:sticky;top:0;z-index:100;background:var(--white);box-shadow:0 2px 10px rgba(0,0,0,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:18px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--navy);line-height:1.1;flex-shrink:0}
.logo img{height:50px;width:auto;display:block}
.logo .mark{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,var(--navy),var(--navy2));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:900;letter-spacing:.5px}
.logo b{font-size:19px;display:block;letter-spacing:.4px}
.logo b i{color:var(--orange);font-style:normal}
.logo small{font-size:10px;color:var(--muted);letter-spacing:1.2px;font-weight:600}
.mainnav ul{display:flex;gap:24px;font-weight:600;font-size:15px}
.mainnav a{padding:6px 0;border-bottom:2px solid transparent;transition:.2s}
.mainnav a:hover,.mainnav a.active{color:var(--orange);border-bottom-color:var(--orange)}
.mainnav .has-drop{position:relative}
.mainnav .drop{position:absolute;top:100%;left:-16px;min-width:268px;background:#fff;border:1px solid var(--line);
  border-radius:6px;box-shadow:0 12px 28px rgba(13,36,64,.14);padding:10px 0;display:none;flex-direction:column;gap:0}
.mainnav .has-drop:hover .drop{display:flex}
.mainnav .drop a{display:block;padding:9px 18px;font-size:14px;border-bottom:none;color:#3d4e61;font-weight:600}
.mainnav .drop a:hover{background:#f4f7fb;color:var(--orange)}
.nav-cta{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none;font-size:26px;background:none;border:none;color:var(--navy);cursor:pointer;line-height:1}

/* ---------- buttons ---------- */
.btn{display:inline-block;background:var(--orange);color:#fff;padding:12px 26px;border-radius:4px;
  font-weight:700;font-size:15px;border:none;cursor:pointer;transition:.2s;text-align:center}
.btn:hover{background:var(--orange-d)}
.btn-outline{border:2px solid #fff;background:transparent;padding:10px 24px}
.btn-outline:hover{background:#fff;color:var(--navy)}
.btn-navy{background:var(--navy)}
.btn-navy:hover{background:var(--navy2)}
.btn-ghost{border:2px solid var(--navy);color:var(--navy);background:transparent;padding:10px 24px}
.btn-ghost:hover{background:var(--navy);color:#fff}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:15px 34px;font-size:16px}

/* ---------- hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 55%,var(--navy3) 100%);
  color:#fff;padding:96px 0;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-120px;width:460px;height:460px;border-radius:50%;background:rgba(242,140,30,.12)}
.hero::before{content:"";position:absolute;right:70px;bottom:-180px;width:340px;height:340px;border-radius:50%;background:rgba(255,255,255,.05)}
.hero .inner{position:relative;z-index:2}
.eyebrow{display:inline-block;background:rgba(242,140,30,.18);border:1px solid rgba(242,140,30,.5);color:var(--orange);
  font-size:12.5px;font-weight:700;padding:5px 14px;border-radius:20px;margin-bottom:18px;letter-spacing:.6px}
.hero h1{font-size:44px;line-height:1.22;max-width:760px;margin-bottom:18px;font-weight:800}
.hero h1 em{color:var(--orange);font-style:normal}
.hero p.lead{max-width:640px;font-size:17.5px;color:#d7e3f0;margin-bottom:30px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:46px;margin-top:52px;flex-wrap:wrap}
.hero-stats b{font-size:30px;color:var(--orange);display:block;line-height:1.2}
.hero-stats span{font-size:13.5px;color:#c3d4e6}

/* ---------- inner page hero ---------- */
.page-hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 60%,var(--navy3) 100%);color:#fff;padding:58px 0 62px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-90px;top:-110px;width:340px;height:340px;border-radius:50%;background:rgba(242,140,30,.1)}
.page-hero .inner{position:relative;z-index:2;max-width:820px}
.page-hero h1{font-size:36px;line-height:1.25;font-weight:800;margin-bottom:14px}
.page-hero p{color:#d0dded;font-size:16.5px;max-width:700px}
.breadcrumb{font-size:13px;color:#9fb6cf;margin-bottom:16px}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb span{color:var(--orange)}

/* ---------- sections ---------- */
section{padding:74px 0}
.bg-gray{background:var(--gray)}
.bg-navy{background:var(--navy);color:#dbe6f2}
.sec-title{text-align:center;margin-bottom:48px}
.sec-title h2{font-size:32px;color:var(--navy);line-height:1.3;font-weight:800}
.sec-title p{color:var(--muted);margin-top:12px;max-width:700px;margin-left:auto;margin-right:auto}
.sec-title::after{content:"";display:block;width:56px;height:4px;background:var(--orange);margin:18px auto 0;border-radius:2px}
.sec-title.left{text-align:left}
.sec-title.left::after{margin-left:0}

/* ---------- grids & cards ---------- */
.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(290px,1fr))}
.g4{grid-template-columns:repeat(auto-fit,minmax(245px,1fr))}
.card{background:#fff;border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow);transition:.25s;border:1px solid transparent}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.card .ico{font-size:31px;margin-bottom:14px;line-height:1}
.card h3{font-size:17.5px;color:var(--navy);margin-bottom:8px}
.card p{font-size:14px;color:var(--muted)}

/* ---------- product cards ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(335px,1fr));gap:26px}
.prod{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;background:#fff;display:flex;flex-direction:column}
.prod:hover{box-shadow:var(--shadow-h);transform:translateY(-4px);border-color:#d8e2ee}
.prod-img{height:152px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#eef3f9,#dde7f2);border-bottom:2px solid var(--orange)}
.prod-img svg{width:84px;height:84px}
.prod-body{padding:24px;flex:1;display:flex;flex-direction:column}
.prod-body h3{font-size:18.5px;color:var(--navy);margin-bottom:10px;line-height:1.35}
.prod-body > p{font-size:14px;color:var(--muted);margin-bottom:14px}
.model-list{margin-bottom:16px;border-top:1px dashed #e3e9f0;padding-top:12px}
.model-list li{font-size:13px;color:#4a5b6e;padding:4px 0;display:flex;gap:8px}
.model-list li::before{content:"\25B8";color:var(--orange);font-weight:700;flex-shrink:0}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.tag{font-size:12px;background:#eef3f9;color:var(--navy2);padding:3px 10px;border-radius:20px}
.prod a.more{margin-top:auto;color:var(--orange);font-weight:700;font-size:14px}
.prod a.more:hover{color:var(--orange-d)}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(120deg,var(--orange),#f6a54a);color:#fff;text-align:center;padding:62px 0}
.cta-band h2{font-size:29px;margin-bottom:12px;font-weight:800}
.cta-band p{max-width:680px;margin:0 auto 24px;color:#fff7ec;font-size:16px}
.cta-band .btn{background:var(--navy)}
.cta-band .btn:hover{background:var(--navy2)}
.cta-band .btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;counter-reset:step}
.step{background:#fff;border-radius:var(--radius);padding:26px 20px;text-align:center;box-shadow:0 3px 10px rgba(13,36,64,.06)}
.step::before{counter-increment:step;content:"0" counter(step);display:block;font-size:28px;font-weight:800;color:var(--orange);margin-bottom:8px}
.step h4{color:var(--navy);font-size:16px;margin-bottom:6px}
.step p{font-size:13px;color:var(--muted)}

/* ---------- standards ---------- */
.std-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.std{background:#fff;border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:6px;padding:18px 20px}
.std b{display:block;color:var(--navy);font-size:15px;margin-bottom:4px}
.std span{font-size:13px;color:var(--muted)}

/* ---------- spec table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
table.spec{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
table.spec caption{caption-side:top;text-align:left;padding:16px 18px 0;font-weight:700;color:var(--navy);font-size:15px}
table.spec th{background:var(--navy);color:#fff;font-weight:700;text-align:left;padding:12px 16px;font-size:13.5px;white-space:nowrap}
table.spec td{padding:11px 16px;border-top:1px solid var(--line);color:#4a5b6e;vertical-align:top}
table.spec tbody tr:nth-child(even){background:#fafbfd}
table.spec td:first-child{font-weight:600;color:var(--navy)}
.note{font-size:12.5px;color:var(--muted);margin-top:10px}

/* ---------- feature list ---------- */
.check-list li{position:relative;padding-left:28px;margin-bottom:10px;color:#4a5b6e;font-size:14.5px}
.check-list li::before{content:"\2714";position:absolute;left:0;top:0;color:var(--orange);font-weight:700}

/* ---------- two column split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.reverse .split-media{order:2}

/* ---------- RFQ ---------- */
.rfq-wrap{display:grid;grid-template-columns:1fr 1.15fr;gap:46px;align-items:start}
.rfq-info h3{font-size:24px;color:var(--navy);margin-bottom:14px}
.rfq-info > p{color:var(--muted);margin-bottom:22px}
.contact-line{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px;font-size:15px}
.contact-line .ico{font-size:19px;line-height:1.4;flex-shrink:0}
.contact-line b{color:var(--navy)}
.contact-line small{display:block;color:var(--muted);font-size:12.5px}
form.rfq{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{font-size:13px;font-weight:700;color:var(--navy);display:block;margin:14px 0 5px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid #d5dee8;border-radius:4px;font-size:14px;font-family:inherit;background:#fff;color:var(--text)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 3px rgba(242,140,30,.12)}
textarea{resize:vertical;min-height:96px}
form.rfq .btn{width:100%;margin-top:20px}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;text-align:center}

/* ---------- FAQ accordion ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:none}
.faq summary{cursor:pointer;padding:18px 46px 18px 20px;font-weight:700;color:var(--navy);font-size:15.5px;position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:22px;color:var(--orange);font-weight:400}
.faq details[open] summary::after{content:"\2013"}
.faq details[open] summary{background:#fafbfd}
.faq .ans{padding:4px 20px 20px;color:var(--muted);font-size:14.5px}

/* ---------- info strip ---------- */
.info-strip{background:var(--navy);color:#dbe6f2;padding:38px 0}
.info-strip .container{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:26px;text-align:center}
.info-strip b{display:block;color:var(--orange);font-size:26px;line-height:1.2}
.info-strip span{font-size:13.5px}

/* ---------- footer ---------- */
footer{background:var(--navy);color:#b9cadd;padding:56px 0 0;font-size:14px}
.fgrid{display:grid;grid-template-columns:1.9fr 1fr 1fr 1.5fr;gap:36px;padding-bottom:40px}
footer h4{color:#fff;margin-bottom:16px;font-size:15.5px;letter-spacing:.3px}
.flogo{background:#fff;border-radius:10px;padding:11px 17px;display:inline-block;margin-bottom:16px}
.flogo img{height:46px;width:auto}
footer li{margin-bottom:9px}
footer a:hover{color:var(--orange)}
.fbar{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:13px;color:#8fa5bd}
.fbar a{color:#b9cadd}
.fbar a:hover{color:var(--orange)}

/* ---------- floating actions ---------- */
.wa-float{position:fixed;right:22px;bottom:26px;z-index:200;display:flex;align-items:center;gap:10px;background:#25D366;color:#fff;
  padding:13px 20px 13px 15px;border-radius:50px;font-weight:700;font-size:15px;box-shadow:0 6px 20px rgba(37,211,102,.45);transition:.25s}
.wa-float:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(37,211,102,.55)}
.wa-float svg{width:26px;height:26px;fill:#fff;flex-shrink:0}
.to-top{position:fixed;right:26px;bottom:96px;z-index:199;width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;
  border:none;cursor:pointer;font-size:18px;display:none;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(13,36,64,.35)}
.to-top.show{display:flex}
.to-top:hover{background:var(--orange)}

/* ---------- misc ---------- */
.center{text-align:center}
.mt-0{margin-top:0}.mt-24{margin-top:24px}.mt-34{margin-top:34px}.mt-46{margin-top:46px}
.mb-24{margin-bottom:24px}
.muted{color:var(--muted)}
.lead-txt{font-size:16.5px;color:#4a5b6e}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:26px}
.hl{background:var(--orange-l);border-left:4px solid var(--orange);border-radius:6px;padding:18px 20px;font-size:14.5px;color:#5a4a33}
.hl b{color:var(--navy)}

/* ---------- 404 ---------- */
.err-wrap{min-height:58vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:70px 20px}
.err-code{font-size:96px;font-weight:900;color:var(--navy);line-height:1;letter-spacing:-2px}
.err-code span{color:var(--orange)}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .fgrid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .rfq-wrap{grid-template-columns:1fr;gap:34px}
}
@media(max-width:900px){
  .mainnav ul{display:none;position:absolute;top:74px;left:0;right:0;background:#fff;flex-direction:column;
    padding:18px 22px;box-shadow:0 10px 20px rgba(0,0,0,.1);gap:14px}
  .mainnav ul.open{display:flex}
  .mainnav a.active{border-bottom-color:transparent}
  .menu-toggle{display:block}
  .nav .btn{display:none}
  .hero{padding:66px 0}
  .hero h1{font-size:31px}
  .hero p.lead{font-size:16px}
  .hero-stats{gap:26px;margin-top:36px}
  .hero-stats b{font-size:25px}
  section{padding:54px 0}
  .sec-title h2{font-size:26px}
  .page-hero h1{font-size:28px}
  .frow{grid-template-columns:1fr}
  .wa-float span.txt{display:none}
  .wa-float{padding:14px;border-radius:50%}
  .to-top{right:20px;bottom:88px}
}
@media(max-width:560px){
  .fgrid{grid-template-columns:1fr}
  .topbar{font-size:12px}
  .hero h1{font-size:26px}
  .err-code{font-size:66px}
}