/* ==========================================================================
   PAIDE CABLE — design system v4
   Layout follows www.paide-cable.com: dark utility bar, white header with
   pill CTA and search, white split hero (oversized headline + colour rule),
   geometric blue page banner with white breadcrumb tab, left category rail
   with product grid, dark four-column footer with subscribe box.
   Executed with tighter type and spacing than the reference.
   ========================================================================== */

:root{
  --blue:#1A3FA0;
  --blue-2:#1E6FD9;
  --blue-3:#0B2E70;
  --blue-x:#EEF3FC;
  --violet:#3B2A8C;
  --violet-d:#2C1F६9;
  --pink:#F0A0B0;
  --orange:#E8890C;

  --ink:#1A1A1A;
  --ink-2:#5A5F66;
  --ink-3:#8C9199;
  --line:#E4E6EA;
  --line-2:#D6D9DF;
  --bg:#FFFFFF;
  --bg-2:#F6F7F9;
  --bg-3:#EEEFF3;

  --f-display:"Montserrat","Helvetica Neue",Arial,sans-serif;
  --f-body:"Inter","Helvetica Neue",Arial,sans-serif;

  --wrap:1280px;
  --pad:clamp(18px,4vw,40px);
  --r:4px;
  --sh:0 1px 3px rgba(26,63,160,.06),0 10px 30px -18px rgba(26,63,160,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.001ms!important;transition-duration:.001ms!important}}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--f-body);font-size:15.5px;line-height:1.75;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--blue);color:#fff}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.wrap-narrow{max-width:900px;margin:0 auto;padding:0 var(--pad)}

/* ---------- typography ---------- */
.display{
  font-family:var(--f-display);font-weight:700;letter-spacing:-.01em;
  line-height:1.18;margin:0;color:var(--ink);text-wrap:balance;
}
h1.display{font-size:clamp(1.9rem,3.6vw,3.1rem)}
h2.display{font-size:clamp(1.45rem,2.4vw,2.05rem)}
h3.display{font-size:clamp(1.05rem,1.5vw,1.28rem);line-height:1.3}

p{margin:0 0 1.05em}
.lead{font-size:clamp(.9688rem,1.1vw,1.05rem);line-height:1.8;color:var(--ink-2);max-width:70ch}
.muted{color:var(--ink-2)}
.small{font-size:.875rem;color:var(--ink-3)}

.eyebrow{
  display:inline-block;font-family:var(--f-display);font-size:.875rem;font-weight:600;
  color:var(--blue);margin:0 0 .55em;letter-spacing:0;
}
.eyebrow::after{
  content:"";display:block;width:56px;height:3px;background:var(--blue);
  margin-top:.5rem;border-radius:2px;
}
.eyebrow.plain{color:var(--ink-3)}
.eyebrow.plain::after{background:var(--line-2)}

.kicker{
  font-family:var(--f-display);font-size:.75rem;font-weight:600;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);
}
.sec-no{font-family:var(--f-display);font-size:.8125rem;font-weight:700;color:var(--ink-3)}

/* section heading, reference style: centred, black, thin subtitle */
.sec-title{text-align:center;max-width:720px;margin:0 auto clamp(2rem,3.6vw,3rem)}
.sec-title h2{margin:0 0 .5rem;text-transform:uppercase;letter-spacing:.01em}
.sec-title p{margin:0;color:var(--ink-2);font-size:.9375rem}

/* ---------- top utility bar ---------- */
.topbar{background:#1A1A1A;color:rgba(255,255,255,.72);font-size:.8125rem}
.topbar-in{
  display:flex;align-items:center;justify-content:space-between;gap:1.5rem;
  min-height:44px;flex-wrap:wrap;
}
.topbar-left{display:flex;align-items:center;gap:1.6rem;flex-wrap:wrap}
.topbar a{display:inline-flex;align-items:center;gap:.45rem;color:rgba(255,255,255,.8)}
.topbar a:hover{color:#fff}
.topbar svg{width:15px;height:15px;opacity:.75;flex:0 0 15px}
.topbar-sep{width:1px;height:16px;background:rgba(255,255,255,.18)}

/* ---------- header ---------- */
.site-header{background:#fff;position:sticky;top:0;z-index:80;border-bottom:1px solid var(--line)}
.site-header.is-solid{box-shadow:0 6px 24px -18px rgba(0,0,0,.35)}
.hd-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;height:86px}
.brand{display:flex;align-items:center;gap:.7rem;flex:0 0 auto}
.brand-mark{width:46px;height:46px;flex:0 0 46px}
.brand-mark svg{display:block;width:100%;height:100%}
.brand-txt{
  font-family:var(--f-display);font-weight:700;font-size:1.15rem;letter-spacing:.01em;
  line-height:1;color:var(--ink);
}
.brand-txt span{color:var(--orange)}
.brand-sub{
  display:block;font-family:var(--f-display);font-size:.5625rem;font-weight:500;
  letter-spacing:.1em;color:var(--ink-3);text-transform:uppercase;margin-top:.3rem;
}
.nav{display:flex;align-items:center;gap:.15rem;margin-left:auto}
.nav a{
  padding:.55rem .85rem;font-family:var(--f-display);font-size:.8125rem;font-weight:600;
  letter-spacing:.04em;text-transform:uppercase;color:var(--ink);
  transition:color .2s;white-space:nowrap;position:relative;
}
.nav a:hover,.nav a[aria-current="page"]{color:var(--blue)}
.nav a[aria-current="page"]::after{
  content:"";position:absolute;left:.85rem;right:.85rem;bottom:.1rem;height:2px;background:var(--blue);
}
.hd-right{display:flex;align-items:center;gap:.6rem;flex:0 0 auto}
.hd-cta{
  display:inline-flex;align-items:center;background:var(--violet);color:#fff;
  padding:.72rem 1.25rem;border-radius:999px;
  font-family:var(--f-display);font-size:.8125rem;font-weight:600;letter-spacing:.04em;
  transition:background .2s,transform .2s var(--ease);
}
.hd-cta:hover{background:#4A37A8;transform:translateY(-1px)}
.hd-search{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg-3);border-radius:var(--r);border:0;cursor:pointer;color:var(--ink);
  transition:background .2s;
}
.hd-search:hover{background:var(--line-2)}

/* language switcher */
.lang{position:relative}
.lang-btn{
  display:inline-flex;align-items:center;gap:.4rem;cursor:pointer;
  background:none;border:0;color:rgba(255,255,255,.85);
  font-family:var(--f-body);font-size:.8125rem;padding:.25rem 0;
}
.lang-btn:hover{color:#fff}
.lang-btn .chev{transition:transform .2s}
.lang.open .lang-btn .chev{transform:rotate(180deg)}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 10px);min-width:180px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);box-shadow:0 24px 60px -24px rgba(0,0,0,.45);
  padding:.3rem;opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s,transform .18s,visibility .18s;z-index:90;
}
.lang.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu a{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.55rem .7rem;border-radius:3px;font-size:.875rem;color:var(--ink)}
.lang-menu a:hover{background:var(--blue-x);color:var(--blue)}
.lang-menu a[aria-current="true"]{background:var(--blue);color:#fff}
.lang-menu a span{font-size:.6875rem;opacity:.6}
.lang-note{padding:.45rem .7rem .3rem;font-size:.625rem;letter-spacing:.06em;color:var(--ink-3);text-transform:uppercase;border-top:1px solid var(--line);margin-top:.2rem}
.burger{display:none;background:none;border:0;padding:.4rem;cursor:pointer}

/* mobile drawer */
.m-drawer{
  position:fixed;inset:0;z-index:95;background:#fff;padding:4.5rem var(--pad) 2rem;
  overflow:auto;transform:translateX(100%);transition:transform .36s var(--ease);
}
.m-drawer.open{transform:translateX(0)}
.m-drawer a{display:block;padding:.9rem 0;border-bottom:1px solid var(--line);font-family:var(--f-display);font-size:1rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em}
.m-drawer .sub{font-family:var(--f-body);font-size:.875rem;font-weight:400;color:var(--ink-2);text-transform:none}
.m-drawer .lang-row{display:flex;gap:.5rem;padding:1.2rem 0 0}
.m-drawer .lang-row a{border:1px solid var(--line-2);border-radius:999px;padding:.45rem .95rem;font-size:.8125rem}
.m-drawer .lang-row a[aria-current="true"]{background:var(--blue);color:#fff;border-color:var(--blue)}
.m-close{position:absolute;top:1.1rem;right:var(--pad);background:none;border:0;color:var(--ink);font-size:1.7rem;cursor:pointer;line-height:1}

/* ---------- hero (white split) ---------- */
.hero{background:#fff;position:relative;overflow:hidden}
.hero-inner{
  display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(1.5rem,4vw,3.5rem);
  align-items:center;padding-top:clamp(2.4rem,4.5vw,4rem);padding-bottom:clamp(2rem,4vw,3.2rem);
}
.hero-copy h1{
  font-family:var(--f-display);font-weight:700;letter-spacing:-.015em;
  font-size:clamp(1.85rem,3.35vw,2.75rem);line-height:1.16;margin:0 0 .55rem;max-width:19ch;
}
.hero-copy h1 em{font-style:normal;display:block}
.hero-rule{width:96px;height:5px;background:var(--pink);border-radius:3px;margin:1.1rem 0 1.5rem}
.hero-sub{max-width:48ch;margin:0 0 1.9rem;color:var(--ink-2);font-size:clamp(.9375rem,1.05vw,1.05rem);line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem;align-items:center}
.hero-vis{align-self:stretch;display:flex;align-items:center;justify-content:center;min-height:360px}
.hero-vis img{width:100%;max-height:520px;object-fit:contain;mix-blend-mode:multiply}
.hero-dots{display:flex;gap:.4rem;justify-content:center;padding-bottom:1.2rem}
.hero-dots i{width:8px;height:8px;border-radius:50%;background:var(--line-2);display:block}
.hero-dots i.on{background:var(--blue);transform:scale(1.15)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;border-radius:var(--r);
  padding:.85rem 1.45rem;font-family:var(--f-display);font-size:.8125rem;font-weight:600;
  letter-spacing:.03em;border:1px solid transparent;cursor:pointer;transition:all .2s var(--ease);
}
.btn-primary{background:var(--violet);color:#fff;border-color:var(--violet);border-radius:999px}
.btn-primary:hover{background:#4A37A8;border-color:#4A37A8}
.btn-blue{background:var(--blue);color:#fff;border-color:var(--blue);border-radius:999px}
.btn-blue:hover{background:var(--blue-2);border-color:var(--blue-2)}
.btn-line{border-color:var(--line-2);color:var(--ink);background:#fff}
.btn-line:hover{border-color:var(--blue);color:var(--blue)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn .arw{transition:transform .2s var(--ease)}
.btn:hover .arw{transform:translateX(3px)}

/* ---------- certification strip ---------- */
.cert-rail{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cert-in{display:flex;align-items:center;justify-content:center;gap:clamp(1.4rem,4vw,3.8rem);flex-wrap:wrap;padding:1.2rem 0}
.cert-list{display:flex;align-items:center;gap:clamp(1.4rem,3.6vw,3.2rem);flex-wrap:wrap}
.cert-label{font-family:var(--f-display);font-size:.6875rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.cert{display:inline-flex;align-items:baseline;gap:.45rem;font-family:var(--f-display);font-size:.9375rem;font-weight:700;color:var(--blue);letter-spacing:.04em;white-space:nowrap}
.cert i{width:6px;height:6px;background:var(--pink);border-radius:50%;display:block}
.cert small{font-family:var(--f-body);font-size:.625rem;font-weight:400;color:var(--ink-3);letter-spacing:0;margin-left:.15rem}

/* ---------- sections ---------- */
section{position:relative}
.sec{padding:clamp(3rem,5.5vw,5.4rem) 0}
.sec.tight{padding:clamp(2rem,3.4vw,3rem) 0}
.sec-grey{background:var(--bg-2)}
.sec-line{border-top:1px solid var(--line)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:2rem;margin-bottom:clamp(1.6rem,3vw,2.6rem);flex-wrap:wrap}
.sec-head h2{margin:0}
.sec-head .aside{font-size:.9375rem;color:var(--ink-2);max-width:42ch}

.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.8rem,4.5vw,4rem);align-items:center}
.split.rev > *:first-child{order:2}
.figure{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh)}
.figure img{width:100%;height:100%;object-fit:contain;padding:clamp(1rem,2.4vw,2rem)}
.split .figure{aspect-ratio:4/3;display:flex;flex-direction:column}
.split .figure img{flex:1;min-height:0}
.figure-cap{display:flex;justify-content:space-between;gap:1rem;padding:.7rem clamp(.9rem,1.8vw,1.2rem);border-top:1px solid var(--line);font-size:.6875rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);background:var(--bg-2)}
.figure-cap span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:60%}

/* dotted decoration behind a figure, reference style */
.split.deco{position:relative}

.split.deco > *{position:relative;z-index:1}

/* ---------- bullet list, reference style ---------- */
.blist{list-style:none;padding:0;margin:1.2rem 0 0;border-left:2px solid var(--line-2);padding-left:1.2rem}
.blist li{position:relative;padding-left:1.3rem;margin-bottom:.85rem;color:var(--ink-2);font-size:.9375rem;line-height:1.75}
.blist li::before{content:"";position:absolute;left:0;top:.55rem;width:9px;height:9px;background:var(--blue)}

/* ---------- capability list ---------- */
.cap-list{border-top:1px solid var(--line)}
.cap{display:grid;grid-template-columns:56px 1fr 1.15fr;gap:clamp(1rem,2.4vw,2.4rem);padding:1.5rem 0;border-bottom:1px solid var(--line);align-items:start;transition:background .2s}
.cap:hover{background:var(--bg-2)}
.cap-n{font-family:var(--f-display);font-size:1rem;font-weight:700;color:var(--blue)}
.cap h3{margin:0;font-family:var(--f-display);font-size:clamp(1rem,1.4vw,1.15rem);font-weight:700;line-height:1.35}
.cap p{margin:0;color:var(--ink-2);font-size:.9375rem;line-height:1.75}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:#fff;padding:1.7rem 1.3rem;text-align:center}
.stat b{display:block;font-family:var(--f-display);font-size:clamp(1.8rem,3vw,2.5rem);font-weight:700;line-height:1;color:var(--blue)}
.stat b span{color:var(--pink);font-size:.55em;vertical-align:super;margin-left:.05em}
.stat i{display:block;margin-top:.55rem;font-style:normal;font-size:.6875rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}

/* ---------- category grid (cards) ---------- */
.cat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(276px,1fr));gap:clamp(.9rem,1.8vw,1.4rem)}
.cat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.5rem 1.4rem 1.3rem;
  display:flex;flex-direction:column;gap:.55rem;position:relative;overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s,border-color .22s;
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh);border-color:var(--line-2)}
.cat-card::after{content:"";position:absolute;right:0;bottom:0;width:0;height:0;border-style:solid;border-width:0 0 18px 18px;border-color:transparent transparent var(--blue) transparent;opacity:0;transition:opacity .2s}
.cat-card:hover::after{opacity:1}
.cat-card .n{font-family:var(--f-display);font-size:.8125rem;font-weight:700;color:var(--blue-2)}
.cat-card h3{margin:0;font-family:var(--f-display);font-size:1.0625rem;font-weight:700;line-height:1.35;color:var(--ink)}
.cat-card p{margin:0;font-size:.875rem;color:var(--ink-2);line-height:1.65;flex:1}
.cat-card .count{font-size:.6875rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.cat-card .go{font-family:var(--f-display);font-size:.6875rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--blue);margin-top:.2rem}

/* category index rows */
.cat-index{border-top:1px solid var(--line)}
.cat-row{display:grid;grid-template-columns:46px 1fr 1.2fr 88px;gap:clamp(.8rem,2vw,2rem);align-items:center;padding:1.05rem 0;border-bottom:1px solid var(--line);transition:background .2s,padding-left .2s var(--ease)}
.cat-row:hover{background:var(--bg-2);padding-left:.6rem}
.cat-row .idx{font-family:var(--f-display);font-size:.875rem;font-weight:700;color:var(--blue)}
.cat-row .name{font-family:var(--f-display);font-size:1rem;font-weight:700;line-height:1.35}
.cat-row .desc{font-size:.875rem;color:var(--ink-2);line-height:1.6}
.cat-row .cnt{text-align:right;font-size:.6875rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}

/* ---------- product cards (reference: image, centred title, read more) ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:clamp(1rem,1.8vw,1.4rem)}
.pcard{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden;transition:box-shadow .22s,border-color .22s,transform .22s var(--ease);
}
.pcard:hover{box-shadow:var(--sh);border-color:var(--line-2);transform:translateY(-2px)}
.pcard-media{position:relative;aspect-ratio:4/3.35;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden}
.pcard-media img{width:100%;height:100%;object-fit:contain;padding:1rem;transition:transform .45s var(--ease)}
.pcard:hover .pcard-media img{transform:scale(1.035)}
.pcard-model{
  position:absolute;left:0;top:0;max-width:86%;background:rgba(26,63,160,.94);color:#fff;
  font-family:var(--f-display);font-size:.5625rem;font-weight:600;letter-spacing:.06em;
  padding:.28rem .5rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.pcard-body{padding:.9rem .9rem 0;display:flex;flex-direction:column;gap:.35rem;flex:1;text-align:center}
.pcard-cat{font-size:.5625rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--pink)}
.pcard-title{
  font-family:var(--f-body);font-size:.875rem;font-weight:500;line-height:1.55;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:4.05em;
}
.pcard-foot{
  margin-top:.7rem;margin-bottom:.9rem;display:block;text-align:center;
  padding:.5rem .6rem;border-radius:3px;background:var(--bg-3);
  font-family:var(--f-display);font-size:.6875rem;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-2);transition:background .2s,color .2s;
}
.pcard:hover .pcard-foot{background:var(--blue);color:#fff}

/* filters */
.filters{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:1.6rem}
.filters a{
  padding:.5rem .85rem;border:1px solid var(--line-2);border-radius:3px;background:#fff;
  font-family:var(--f-display);font-size:.6875rem;font-weight:600;letter-spacing:.04em;
  text-transform:uppercase;color:var(--ink-2);transition:all .2s;
}
.filters a:hover{border-color:var(--blue);color:var(--blue)}
.filters a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.filters a b{font-weight:600;opacity:.6;margin-left:.3rem}

/* ---------- page banner (geometric blue) ---------- */
.page-head{
  position:relative;overflow:hidden;color:#fff;
  background:
    linear-gradient(115deg,var(--blue-3) 0%,var(--blue) 46%,var(--blue-2) 100%);
}
.page-head::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(122deg,transparent 0 42%,rgba(255,255,255,.10) 42% 58%,transparent 58%),
    linear-gradient(122deg,transparent 0 66%,rgba(255,255,255,.07) 66% 82%,transparent 82%);
}
.page-head-in{position:relative;z-index:2;padding-top:clamp(2rem,3.8vw,3rem);padding-bottom:clamp(2.4rem,4vw,3.4rem)}
.page-head h1{margin-bottom:.45rem;color:#fff}
.page-head h1.pd-title{font-size:clamp(1.15rem,2vw,1.65rem);line-height:1.35;max-width:40ch;font-weight:600}
.page-head .lead{color:rgba(255,255,255,.85);max-width:70ch;margin:0;font-size:.9375rem}
.crumbs{
  display:inline-flex;align-items:center;gap:.45rem;background:#fff;color:var(--ink-2);
  padding:.45rem .9rem;border-radius:3px;font-size:.75rem;margin-bottom:1.3rem;
  box-shadow:0 6px 18px -12px rgba(0,0,0,.5);
}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--blue)}
.crumbs span{opacity:.5;color:var(--ink)}
.crumbs span[style]{color:var(--ink)!important}

/* ---------- product detail ---------- */
.pd-top{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.8rem,4vw,3.2rem);align-items:start}
.pd-gallery{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh)}
.pd-main{aspect-ratio:4/3.4;display:flex;align-items:center;justify-content:center;padding:clamp(1rem,2.2vw,2rem)}
.pd-main img{max-width:100%;max-height:100%;object-fit:contain;mix-blend-mode:multiply}
.pd-thumbs{display:flex;gap:1px;background:var(--line);border-top:1px solid var(--line)}
.pd-thumbs button{flex:1;aspect-ratio:1;background:#fff;border:0;padding:.4rem;cursor:pointer;position:relative;transition:background .2s}
.pd-thumbs button img{width:100%;height:100%;object-fit:contain}
.pd-thumbs button:hover{background:var(--bg-2)}
.pd-thumbs button[aria-current="true"]::after{content:"";position:absolute;inset:0;border:2px solid var(--blue)}
.pd-model{display:inline-block;background:var(--blue-x);color:var(--blue);font-family:var(--f-display);font-size:.6875rem;font-weight:700;letter-spacing:.05em;padding:.3rem .55rem;border-radius:3px;margin-bottom:.8rem}
.pd-specs{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:1.2rem 0;background:#fff}
.pd-spec{display:grid;grid-template-columns:minmax(110px,.6fr) 1.4fr;gap:1rem;padding:.7rem .95rem;border-bottom:1px solid var(--line);font-size:.875rem}
.pd-spec:last-child{border-bottom:0}
.pd-spec:nth-child(odd){background:var(--bg-2)}
.pd-spec dt{font-family:var(--f-display);font-size:.625rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);padding-top:.15rem}
.pd-spec dd{margin:0;color:var(--ink);font-weight:500;line-height:1.6}
.pd-actions{display:flex;flex-wrap:wrap;gap:.55rem;margin-top:1.2rem}
.pd-note{margin-top:1.1rem;padding:.95rem 1.1rem;border-left:3px solid var(--pink);background:#FDF6F8;font-size:.8125rem;color:var(--ink-2);line-height:1.7}
.pd-body{max-width:76ch}
.pd-body h3{font-family:var(--f-display);font-size:.9375rem;font-weight:700;color:var(--ink);margin:2rem 0 .7rem;padding-bottom:.45rem;border-bottom:2px solid var(--blue-x)}
.pd-body h3:first-child{margin-top:0}
.pd-body p{color:var(--ink-2);font-size:.9375rem;line-height:1.85;margin:0 0 1em}
.pd-body li{color:var(--ink-2);font-size:.9375rem;line-height:1.8;margin-bottom:.45rem}
.pd-body ul{padding-left:1.15rem;margin:0 0 1.15em}
.pd-sticky{position:sticky;top:110px}
.pd-foot{display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:1.6rem;margin-top:2.6rem}
.pd-nav{display:flex;flex-direction:column;gap:.25rem;max-width:44%}
.pd-nav i{font-size:.5625rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);font-style:normal}
.pd-nav a{font-size:.875rem;color:var(--ink-2);line-height:1.5}
.pd-nav a:hover{color:var(--blue)}

/* ---------- category rail (products page) ---------- */
.plist-layout{display:grid;grid-template-columns:268px 1fr;gap:clamp(1.4rem,3vw,2.6rem);align-items:start}
.rail-box{border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden}
.rail-h{font-family:var(--f-display);font-size:1.15rem;font-weight:700;padding:1rem 1.1rem .8rem;border-bottom:1px solid var(--line);margin:0}
.rail-h::after{content:"";display:block;width:44px;height:3px;background:var(--blue);margin-top:.5rem;border-radius:2px}
.rail-list{padding:.35rem 0}
.rail-list a{display:flex;align-items:center;gap:.55rem;padding:.6rem 1.1rem;font-size:.875rem;color:var(--ink-2);border-left:2px solid transparent;transition:all .18s}
.rail-list a:hover{background:var(--bg-2);color:var(--blue);border-left-color:var(--blue)}
.rail-list a[aria-current="true"]{background:var(--blue-x);color:var(--blue);border-left-color:var(--blue);font-weight:600}
.rail-list a svg{width:14px;height:14px;opacity:.45;flex:0 0 14px}
.rail-list a b{margin-left:auto;font-size:.625rem;font-weight:600;color:var(--ink-3)}
.rail-search{display:flex;border-top:1px solid var(--line);padding:.7rem}
.rail-search input{flex:1;border:1px solid var(--line-2);border-right:0;border-radius:3px 0 0 3px;padding:.55rem .7rem;font-size:.8125rem;font-family:var(--f-body)}
.rail-search input:focus{outline:none;border-color:var(--blue)}
.rail-search button{background:var(--blue);border:0;color:#fff;width:42px;border-radius:0 3px 3px 0;cursor:pointer;display:flex;align-items:center;justify-content:center}

/* ---------- applications ---------- */
.app-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(292px,1fr));gap:clamp(.9rem,1.8vw,1.4rem)}
.app{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.45rem 1.35rem;display:flex;flex-direction:column;gap:.6rem;transition:box-shadow .22s,transform .22s var(--ease)}
.app:hover{box-shadow:var(--sh);transform:translateY(-2px)}
.app-n{font-family:var(--f-display);font-size:.8125rem;font-weight:700;color:var(--blue-2)}
.app h3{margin:0;font-family:var(--f-display);font-size:1.0625rem;font-weight:700;line-height:1.35}
.app p{margin:0;font-size:.875rem;color:var(--ink-2);line-height:1.7}
.app .chips{display:flex;flex-wrap:wrap;gap:.3rem;padding-top:.15rem}
.app > div:last-child{margin-top:auto}
.chip{font-size:.5625rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;padding:.24rem .5rem;border:1px solid var(--line-2);color:var(--ink-3);border-radius:2px;background:var(--bg-2)}

/* ---------- news ---------- */
.news-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.news-row{display:grid;grid-template-columns:104px 1fr 28px;gap:clamp(.9rem,2.4vw,2rem);padding:1.2rem 1.25rem;background:#fff;align-items:start;transition:background .18s}
.news-row:hover{background:var(--bg-2)}
.news-row time{font-size:.625rem;font-weight:600;letter-spacing:.06em;color:var(--ink-3);padding-top:.28rem;text-transform:uppercase}
.news-row h3{margin:0 0 .35rem;font-family:var(--f-display);font-size:.9375rem;font-weight:700;line-height:1.45}
.news-row p{margin:0;font-size:.8438rem;color:var(--ink-2);line-height:1.65;max-width:80ch}
.news-row .go{color:var(--ink-3);justify-self:end;transition:color .18s,transform .18s}
.news-row:hover .go{color:var(--blue);transform:translateX(3px)}

/* ---------- CTA band ---------- */
.cta-band{background:#1A1A1A;color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-6%;top:-60%;width:44%;height:220%;background:radial-gradient(circle,rgba(30,111,217,.35),transparent 62%);pointer-events:none}
.cta-in{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap;padding-top:clamp(2rem,4vw,3.4rem);padding-bottom:clamp(2rem,4vw,3.4rem)}
.cta-in h2{margin:0;max-width:26ch;color:#fff}
.cta-band .eyebrow{color:var(--pink)}
.cta-band .eyebrow::after{background:var(--pink)}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ---------- footer ---------- */
.site-footer{background:#151515;color:rgba(255,255,255,.62)}
.ft-strip{background:#1F1F1F;border-bottom:1px solid rgba(255,255,255,.08)}
.ft-strip-in{display:flex;align-items:center;justify-content:space-between;gap:1.4rem;flex-wrap:wrap;padding:1.1rem 0;color:rgba(255,255,255,.8);font-size:.9375rem}
.site-footer .wrap{padding-top:clamp(2rem,4vw,3.2rem);padding-bottom:0}
.ft-top{display:grid;grid-template-columns:1.35fr 1.15fr 1.15fr 1fr;gap:clamp(1.4rem,3vw,2.8rem);padding-bottom:2.2rem}
.ft-brand .brand{margin-bottom:.9rem}
.ft-brand .brand-txt{color:#fff}
.ft-brand .brand-sub{color:rgba(255,255,255,.45)}
.ft-brand p{font-size:.8438rem;color:rgba(255,255,255,.55);max-width:38ch;line-height:1.75}
.ft-col h4{margin:0 0 .85rem;font-family:var(--f-display);font-size:.9375rem;font-weight:700;letter-spacing:.06em;color:#fff}
.ft-col h4::after{content:"";display:block;width:34px;height:2px;background:var(--blue-2);margin-top:.45rem}
.ft-col a,.ft-col p{display:block;font-size:.8438rem;color:rgba(255,255,255,.58);margin-bottom:.45rem;line-height:1.6}
.ft-col a:hover{color:#fff}
.ft-col a::before{content:"› ";color:var(--blue-2)}
.ft-contact p::before{content:none}
.ft-sub input{
  width:100%;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);
  border-radius:3px;color:#fff;padding:.65rem .8rem;font-size:.8125rem;font-family:var(--f-body);
}
.ft-sub input::placeholder{color:rgba(255,255,255,.4)}
.ft-sub input:focus{outline:none;border-color:var(--blue-2)}
.ft-sub button{
  margin-top:.5rem;background:var(--blue);color:#fff;border:0;border-radius:3px;
  padding:.55rem 1.1rem;font-family:var(--f-display);font-size:.75rem;font-weight:600;cursor:pointer;
}
.ft-sub button:hover{background:var(--blue-2)}
.ft-bottom{border-top:1px solid rgba(255,255,255,.1);padding:.95rem 0;text-align:center;font-size:.75rem;color:rgba(255,255,255,.42)}

/* ---------- floating contact (whatsapp / email) ---------- */
.rail{position:fixed;right:0;top:46%;transform:translateY(-50%);z-index:70;display:flex;flex-direction:column;gap:.5rem;padding-right:8px}
.rail a{
  width:58px;background:#fff;border:1px solid var(--line);border-radius:6px;
  box-shadow:0 8px 24px -12px rgba(0,0,0,.35);
  display:flex;flex-direction:column;align-items:center;gap:.2rem;padding:.55rem .2rem;
  font-size:.5625rem;font-weight:600;color:var(--ink-2);transition:transform .18s,box-shadow .18s;
}
.rail a:hover{transform:translateX(-2px);box-shadow:0 12px 28px -12px rgba(0,0,0,.45)}
.rail svg{width:20px;height:20px}
.rail .wa{color:#25D366}
.rail .ml{color:var(--blue)}
@media (max-width:900px){.rail{display:none}}

/* ---------- misc ---------- */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none}}

.tag-row{display:flex;flex-wrap:wrap;gap:.4rem;margin:1rem 0}
.tag{font-size:.625rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;padding:.3rem .55rem;border:1px solid var(--line-2);color:var(--ink-2);border-radius:2px;background:var(--bg-2)}

.note-box{border:1px solid var(--line);border-left:3px solid var(--pink);padding:1rem 1.2rem;font-size:.875rem;color:var(--ink-2);line-height:1.75;background:#FDF6F8}
.kv{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.kv > div{background:#fff;padding:1.1rem 1.2rem}
.kv b{display:block;font-family:var(--f-display);font-size:.625rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-bottom:.35rem}
.kv span{font-size:.9063rem;line-height:1.6}

table.tbl{width:100%;border-collapse:collapse;font-size:.875rem;background:#fff;border:1px solid var(--line)}
table.tbl th,table.tbl td{text-align:left;padding:.75rem .95rem;border-bottom:1px solid var(--line)}
table.tbl th{font-family:var(--f-display);font-size:.625rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#fff;background:var(--blue);border-bottom:0}
table.tbl tr:last-child td{border-bottom:0}
table.tbl td{color:var(--ink-2)}

.faq{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{padding:1rem 1.15rem;cursor:pointer;list-style:none;font-family:var(--f-display);font-size:.9375rem;font-weight:600;line-height:1.5;display:flex;justify-content:space-between;gap:1.4rem;align-items:center;transition:background .18s}
.faq summary:hover{background:var(--bg-2)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--blue);font-size:1.15rem;line-height:1;font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq .ans{padding:0 1.15rem 1.15rem;color:var(--ink-2);font-size:.9063rem;line-height:1.8;max-width:82ch}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.8rem,4.5vw,4rem)}
.c-item{padding:1.05rem 0;border-bottom:1px solid var(--line)}
.c-item b{display:block;font-family:var(--f-display);font-size:.625rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-bottom:.35rem}
.c-item span,.c-item a{font-size:.9688rem;line-height:1.6}
.c-item a:hover{color:var(--blue)}
form.inq{display:grid;gap:.85rem;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:clamp(1.1rem,2.2vw,1.6rem);box-shadow:var(--sh)}
form.inq label{font-family:var(--f-display);font-size:.625rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-3);display:block;margin-bottom:.35rem}
form.inq input,form.inq textarea,form.inq select{width:100%;background:#fff;border:1px solid var(--line-2);border-radius:3px;color:var(--ink);padding:.72rem .85rem;font-family:var(--f-body);font-size:.9063rem;transition:border-color .18s,box-shadow .18s}
form.inq input:focus,form.inq textarea:focus,form.inq select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(26,63,160,.08)}
form.inq textarea{min-height:120px;resize:vertical}

/* ---------- responsive ---------- */
@media (max-width:1120px){
  .plist-layout{grid-template-columns:1fr}
  .rail-box{order:-1}
  .rail-list{display:grid;grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1080px){
  .nav{display:none}
  .burger{display:block}
  .hero-inner{grid-template-columns:1fr;gap:1.6rem}
  .hero-vis{min-height:0;order:-1}
  .hero-vis img{max-height:320px}
  .split{grid-template-columns:1fr}
  .split.rev > *:first-child{order:0}
  .pd-top{grid-template-columns:1fr}
  .pd-sticky{position:static}
  .ft-top{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .topbar-left{gap:.9rem;font-size:.75rem}
  .topbar-sep{display:none}
  .hd-inner{height:68px}
  .brand-mark{width:38px;height:38px;flex:0 0 38px}
  .brand-txt{font-size:1rem}
  .brand-sub{display:none}
  .hd-cta{display:none}
  .cap{grid-template-columns:34px 1fr;gap:.7rem}
  .cap p{grid-column:2}
  .cat-row{grid-template-columns:30px 1fr auto;gap:.55rem}
  .cat-row .desc{display:none}
  .rail-list{grid-template-columns:1fr}
  .news-row{grid-template-columns:1fr;gap:.4rem;padding:1rem}
  .news-row .go{display:none}
  .contact-grid{grid-template-columns:1fr}
  .ft-top{grid-template-columns:1fr;gap:1.6rem}
  .prod-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .pcard-title{font-size:.8125rem}
  .cta-in{flex-direction:column;align-items:flex-start}
  .hero-rule{width:72px;height:4px}
}

/* ---------- Chinese typography tuning ---------- */
:lang(zh) body{letter-spacing:0}
:lang(zh) .display,:lang(zh) .hero-copy h1{letter-spacing:.01em}
:lang(zh) h1.display,:lang(zh) h2.display{line-height:1.35}
:lang(zh) .hero-copy h1{line-height:1.3}
:lang(zh) .nav a{letter-spacing:.02em}
:lang(zh) .pcard-title{line-height:1.65}