/* ─────────────────────────────────────────────
   JIANLU ELECTRONICS — Shared Stylesheet
   ───────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@700;900&family=Inter:wght@300;400;500;600&display=swap');

/* ── RESET ───────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--smoke);-webkit-font-smoothing:antialiased;min-height:100vh}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font-family:inherit}
ul{list-style:none}

/* ── VARIABLES ───────────────────────────────── */
:root{
  --ink:#0c0c0e;
  --smoke:#f4f3ef;
  --white:#ffffff;
  --stone:#6e6e6e;
  --steel:#deddd8;
  --amber:#c07800;
  --amber-pale:rgba(192,120,0,.09);
  --green:#1a6b2e;

  --font-d:'Barlow Condensed',sans-serif;
  --font-b:'Inter',system-ui,sans-serif;

  --nav-h:62px;
  --max:1280px;
  --pad:clamp(20px,5vw,64px);
  --gap:clamp(16px,2.5vw,32px);

  --radius:0px;
  --shadow:0 4px 24px rgba(0,0,0,.08);
}

/* ── NAV ─────────────────────────────────────── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:500;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 var(--pad);
  background:rgba(12,12,14,.97);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.nav-logo{display:flex;flex-direction:column;gap:1px;text-decoration:none;flex-shrink:0}
.nav-logo-top{font-family:var(--font-d);font-size:20px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:#fff;line-height:1}
.nav-logo-btm{font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.32)}

.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{font-size:11.5px;font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.6);padding:7px 12px;transition:color .2s,background .2s;white-space:nowrap}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:#fff}
.nav-cta{background:var(--amber)!important;color:#fff!important;font-weight:700!important;padding:7px 18px!important}
.nav-cta:hover{background:#d48500!important}

.burger{display:none;flex-direction:column;justify-content:center;gap:5px;cursor:pointer;padding:6px;width:36px;height:36px}
.burger span{width:22px;height:1.5px;background:#fff;display:block;transition:transform .3s,opacity .3s;transform-origin:center}
.burger.open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.mobile-menu{
  display:none;position:fixed;top:var(--nav-h);left:0;right:0;z-index:499;
  background:var(--ink);padding:12px var(--pad) 24px;
  border-bottom:1px solid rgba(255,255,255,.08);
  flex-direction:column;
}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:14px;font-weight:500;color:rgba(255,255,255,.65);padding:13px 0;border-bottom:1px solid rgba(255,255,255,.06);letter-spacing:.06em;text-transform:uppercase;transition:color .2s}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a:hover{color:#fff}

/* ── FOOTER ──────────────────────────────────── */
.site-footer{background:#07070a;padding:clamp(32px,5vw,52px) var(--pad) 28px;border-top:1px solid rgba(255,255,255,.05)}
.footer-inner{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:1fr 1fr 1fr;align-items:start;gap:40px}
.footer-brand-name{font-family:var(--font-d);font-size:20px;font-weight:900;text-transform:uppercase;letter-spacing:.1em;color:#fff;margin-bottom:6px}
.footer-brand-sub{font-size:11px;color:rgba(255,255,255,.28);letter-spacing:.06em;line-height:1.6}
.footer-nav{display:flex;flex-direction:column;gap:8px}
.footer-nav-title{font-size:10px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:4px}
.footer-nav a{font-size:12.5px;color:rgba(255,255,255,.45);transition:color .2s}
.footer-nav a:hover{color:rgba(255,255,255,.85)}
.footer-contact-title{font-size:10px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:10px}
.footer-email{font-size:13px;color:var(--amber);margin-bottom:4px}
.footer-location{font-size:12px;color:rgba(255,255,255,.4);line-height:1.6}
.footer-bottom{max-width:var(--max);margin:32px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.05);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-copy{font-size:11px;color:rgba(255,255,255,.2)}
.footer-tag{font-size:10.5px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.2)}

/* ── PAGE WRAP ───────────────────────────────── */
.page-wrap{padding-top:var(--nav-h)}

/* ── TYPOGRAPHY HELPERS ──────────────────────── */
.eyebrow{font-size:10.5px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--stone)}
.eyebrow--amber{color:var(--amber)}
.eyebrow--white{color:rgba(255,255,255,.38)}
.rule{display:block;width:36px;height:1px;background:var(--steel)}
.rule--amber{background:var(--amber)}
.sec-h{font-family:var(--font-d);font-size:clamp(36px,4.5vw,60px);font-weight:900;text-transform:uppercase;letter-spacing:-.01em;line-height:1;color:var(--ink)}
.sec-h--white{color:#fff}
.sec-h--sm{font-size:clamp(28px,3.5vw,44px)}
.body-text{font-size:clamp(14px,1.5vw,15.5px);font-weight:300;line-height:1.78;color:var(--stone)}
.body-text--white{color:rgba(255,255,255,.55)}

/* ── BUTTONS ─────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:9px;font-size:11.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:13px 28px;transition:all .2s;cursor:pointer;border:none;white-space:nowrap}
.btn-arrow::after{content:'→';transition:transform .25s}
.btn-arrow:hover::after{transform:translateX(5px)}
.btn--amber{background:var(--amber);color:#fff}
.btn--amber:hover{background:#d48500;transform:translateY(-1px);box-shadow:0 6px 20px rgba(192,120,0,.3)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:#1a1a1a}
.btn--outline{border:1.5px solid rgba(255,255,255,.28);color:#fff;background:transparent}
.btn--outline:hover{border-color:rgba(255,255,255,.7);background:rgba(255,255,255,.06)}
.btn--outline-dark{border:1.5px solid var(--steel);color:var(--ink);background:transparent}
.btn--outline-dark:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn--sm{padding:9px 20px;font-size:10.5px}

/* ── INNER PAGE HERO ─────────────────────────── */
.page-hero{background:var(--ink);padding:clamp(52px,7vw,88px) var(--pad) clamp(40px,5vw,68px)}
.page-hero-inner{max-width:var(--max);margin:0 auto}
.page-hero .eyebrow{margin-bottom:12px}
.page-hero .sec-h{margin-top:10px;margin-bottom:18px}
.page-hero .body-text{max-width:560px}

/* ── BREADCRUMB ──────────────────────────────── */
.breadcrumb{display:flex;align-items:center;gap:6px;font-size:11.5px;color:rgba(255,255,255,.35);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.35);transition:color .2s}
.breadcrumb a:hover{color:rgba(255,255,255,.7)}
.breadcrumb-sep{color:rgba(255,255,255,.2)}

/* ── SECTION ─────────────────────────────────── */
.section{padding:clamp(52px,7vw,96px) var(--pad)}
.section-inner{max-width:var(--max);margin:0 auto}
.section--white{background:var(--white)}
.section--smoke{background:var(--smoke)}
.section--dark{background:var(--ink)}
.section--darker{background:#070709}
.section-head{margin-bottom:clamp(36px,4vw,56px)}
.section-head .eyebrow{margin-bottom:10px}
.section-head .sec-h{margin-bottom:12px}

/* ── PRODUCT GRID ────────────────────────────── */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:3px}
.pgrid--2col{grid-template-columns:repeat(2,1fr)}

.pcard{background:var(--smoke);overflow:hidden;display:block;color:inherit;text-decoration:none;position:relative}
.pcard:hover .pcard-img{transform:scale(1.04)}
.pcard:hover .pcard-cta{color:var(--amber);gap:12px}
.pcard-imgwrap{overflow:hidden;position:relative}
.pcard-imgwrap--sq{aspect-ratio:1/1}
.pcard-imgwrap--43{aspect-ratio:4/3}
.pcard-imgwrap--32{aspect-ratio:3/2}
.pcard-imgwrap--wide{aspect-ratio:16/5;background:#f0efe9;display:flex;align-items:center;justify-content:center;padding:20px 40px}
.pcard-img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.pcard-img--contain{object-fit:contain}
.pcard-body{padding:18px 22px 22px}
.pcard-cat{font-size:10px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--amber);margin-bottom:5px}
.pcard-name{font-family:var(--font-d);font-size:clamp(16px,1.8vw,21px);font-weight:700;text-transform:uppercase;letter-spacing:.02em;color:var(--ink);margin-bottom:6px;line-height:1.1}
.pcard-desc{font-size:12.5px;color:var(--stone);line-height:1.65;margin-bottom:12px}
.pcard-tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:14px}
.pcard-tag{font-size:9px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--stone);border:1px solid var(--steel);padding:3px 8px}
.pcard-cta{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--stone);display:flex;align-items:center;gap:6px;transition:color .25s,gap .25s}
.pcard--span2{grid-column:span 2}
.pcard--span3{grid-column:span 3}

/* ── SPEC TABLE ──────────────────────────────── */
.spec-table{width:100%;border-collapse:collapse}
.spec-table tr{border-bottom:1px solid var(--steel)}
.spec-table tr:last-child{border-bottom:none}
.spec-table th{font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--stone);padding:13px 0;text-align:left;width:42%;vertical-align:top}
.spec-table td{font-size:14px;color:var(--ink);padding:13px 0;font-weight:400}

/* ── PARTNER CARD ────────────────────────────── */
.partner-card{border:1px solid var(--steel);padding:clamp(28px,3vw,44px);background:var(--white);transition:box-shadow .25s}
.partner-card:hover{box-shadow:var(--shadow)}
.partner-logo-box{width:120px;height:56px;display:flex;align-items:center;justify-content:flex-start;margin-bottom:20px}
.partner-logo-text{font-family:var(--font-d);font-size:28px;font-weight:900;letter-spacing:.06em;text-transform:uppercase;color:var(--ink)}
.partner-logo-sub{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--stone);margin-top:2px}

/* ── FORM ────────────────────────────────────── */
.form-title{font-family:var(--font-d);font-size:18px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--ink);padding-bottom:20px;border-bottom:1px solid var(--steel);margin-bottom:28px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fgroup{margin-bottom:16px}
.fgroup label{display:block;font-size:9.5px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--stone);margin-bottom:7px}
.fgroup input,.fgroup select,.fgroup textarea{width:100%;padding:12px 14px;background:var(--smoke);border:1px solid var(--steel);font-size:13.5px;color:var(--ink);outline:none;transition:border-color .2s;-webkit-appearance:none}
.fgroup input:focus,.fgroup select:focus,.fgroup textarea:focus{border-color:var(--ink)}
.fgroup textarea{resize:vertical;min-height:108px}
.fgroup select option{background:#fff}
.fsubmit{width:100%;padding:14px;background:var(--ink);color:#fff;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;border:none;cursor:pointer;transition:background .2s;margin-top:6px}
.fsubmit:hover{background:#222}
.form-msg{display:none;margin-top:14px;padding:12px 16px;font-size:13px;font-weight:500}

/* ── TICKER ──────────────────────────────────── */
.ticker{background:var(--amber);padding:12px 0;overflow:hidden;white-space:nowrap}
.ticker-inner{display:inline-flex;animation:ticker 32s linear infinite}
.ticker-inner span{font-size:11px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#fff;padding:0 28px}
.ticker-inner span::after{content:'·';margin-left:28px;opacity:.5}
@keyframes ticker{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ── STAT BAR ────────────────────────────────── */
.stat-bar{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.07)}
.stat-item{padding:20px 28px;border-right:1px solid rgba(255,255,255,.07)}
.stat-item:last-child{border-right:none}
.stat-n{font-family:var(--font-d);font-size:clamp(28px,3vw,38px);font-weight:900;color:#fff;line-height:1;margin-bottom:4px}
.stat-n em{font-style:normal;font-size:60%;color:var(--amber)}
.stat-l{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.35)}

/* ── PROCESS STEPS ───────────────────────────── */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.step{padding-right:clamp(16px,2vw,28px);border-right:1px solid rgba(255,255,255,.07);margin-right:clamp(16px,2vw,28px)}
.step:last-child{border-right:none;margin-right:0;padding-right:0}
.step-n{font-family:var(--font-d);font-size:56px;font-weight:900;color:rgba(255,255,255,.05);line-height:1;margin-bottom:18px}
.step-title{font-family:var(--font-d);font-size:18px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#fff;margin-bottom:8px}
.step-desc{font-size:12.5px;font-weight:300;color:rgba(255,255,255,.42);line-height:1.75}
.step-time{margin-top:16px;font-size:10px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--amber)}

/* ── CERT GRID ───────────────────────────────── */
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--steel)}
.cert-card{padding:26px 28px;border-right:1px solid var(--steel);border-bottom:1px solid var(--steel);transition:background .2s}
.cert-card:hover{background:var(--white)}
.cert-card:nth-child(3n){border-right:none}
.cert-name{font-family:var(--font-d);font-size:24px;font-weight:700;text-transform:uppercase;color:var(--ink);margin-bottom:6px}
.cert-desc{font-size:12px;color:var(--stone);line-height:1.6}
.cert-mkt{display:inline-block;margin-top:10px;font-size:9.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--amber);border-bottom:1px solid var(--amber);padding-bottom:2px}

/* ── RESPONSIVE ──────────────────────────────── */
@media(max-width:1024px){
  .pgrid{grid-template-columns:repeat(2,1fr)}
  .pcard--span2,.pcard--span3{grid-column:span 2}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .steps{grid-template-columns:repeat(3,1fr);gap:32px}
  .step{border-right:none;margin-right:0;padding-right:0;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.07)}
  .step:last-child{border-bottom:none;padding-bottom:0}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .cert-card:nth-child(3n){border-right:1px solid var(--steel)}
  .cert-card:nth-child(2n){border-right:none}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:none}
  .stat-item:nth-child(3){border-top:1px solid rgba(255,255,255,.07)}
}
@media(max-width:768px){
  .nav-links{display:none}
  .burger{display:flex}
  .pgrid,.pgrid--2col{grid-template-columns:repeat(2,1fr)}
  .pcard--span2,.pcard--span3{grid-column:span 2}
  .frow{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-inner>*:not(:first-child){display:none}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media(max-width:480px){
  .pgrid,.pgrid--2col{grid-template-columns:1fr}
  .pcard--span2,.pcard--span3{grid-column:span 1}
  .cert-grid{grid-template-columns:1fr}
  .cert-card:nth-child(2n),.cert-card:nth-child(3n){border-right:1px solid var(--steel)}
  .steps{grid-template-columns:1fr}
  .stat-bar{grid-template-columns:1fr 1fr}
}

/* ── REVEAL ANIMATION ────────────────────────── */
.rv.js-on{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1!important;transform:none!important}
.rv-d1{transition-delay:.1s}.rv-d2{transition-delay:.2s}.rv-d3{transition-delay:.3s}