/* =====================================================================
   DEXIN — Suzhou Dexin Ceramic New Materials  |  Demo design system
   "Premium Hybrid": dark cinematic hero → light body → dark factory band
   ===================================================================== */

/* ---------- Tokens ---------- */
:root{
  --ink:#0b2545;          /* deep navy (brand dark)   */
  --ink-2:#0e2a4f;        /* dark section bg          */
  --ink-3:#173a63;        /* dark card                */
  --bg:#ffffff;
  --bg-soft:#f5f6f8;
  --bg-soft-2:#eceff3;
  --line:#e4e8ed;
  --line-dark:rgba(255,255,255,.12);
  --text:#161a20;
  --muted:#5d6470;
  --muted-d:#aab2bf;      /* muted on dark            */
  --molten:#1565d3;       /* logo royal blue (accent) */
  --molten-2:#3a86e8;
  --molten-soft:#e9f1fc;
  --steel:#0d4aa8;        /* deeper blue accent       */
  --gold:#f3b340;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 3px rgba(20,24,33,.06),0 1px 2px rgba(20,24,33,.04);
  --shadow:0 10px 30px -12px rgba(20,24,33,.18);
  --shadow-lg:0 30px 60px -20px rgba(20,24,33,.30);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:'Inter','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --display:'Sora','PingFang SC','Hiragino Sans GB','Microsoft YaHei',var(--font);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);
  font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
html[lang="zh"] body{font-size:17px;line-height:1.8}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{font-family:var(--display);font-weight:700;line-height:1.12;letter-spacing:-.02em;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--molten);outline-offset:2px;border-radius:6px}

/* ---------- Layout ---------- */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px}
.section{padding:72px 0}
.section.tight{padding:46px 0}
.dark{background:var(--ink);color:#fff}
.dark h1,.dark h2,.dark h3{color:#fff}
.soft{background:var(--bg-soft)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--molten)}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--molten);display:inline-block}
.section-head{max-width:720px;margin-bottom:48px}
.section-head.center{margin-inline:auto;text-align:center}
.section-head.center .eyebrow::before{display:none}
.section-head h2{font-size:clamp(28px,3.6vw,46px);margin:14px 0 0}
.section-head p{margin-top:16px;color:var(--muted);font-size:18px}
.dark .section-head p{color:var(--muted-d)}
.lead{font-size:19px;color:var(--muted)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:600;
  font-size:15px;padding:14px 26px;border-radius:100px;border:1.5px solid transparent;
  transition:transform .25s var(--ease),background .25s,box-shadow .25s,color .25s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--molten);color:#fff;box-shadow:0 8px 24px -8px rgba(21,101,211,.6)}
.btn-primary:hover{background:var(--molten-2);box-shadow:0 14px 30px -8px rgba(21,101,211,.7)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--bg-soft)}
.btn-on-dark{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.32);backdrop-filter:blur(6px)}
.btn-on-dark:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{padding:10px 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--display);font-weight:600;color:var(--molten)}
.link-arrow svg{width:16px;transition:transform .25s var(--ease)}
.link-arrow:hover svg{transform:translateX(5px)}

/* ---------- Header ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:200;transition:background .35s,box-shadow .35s,padding .35s;
  padding:18px 0}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--display);font-weight:800;font-size:23px;
  letter-spacing:-.02em;color:#fff;transition:color .35s}
.brand .mark{width:38px;height:38px;border-radius:9px;display:grid;place-items:center;flex:0 0 auto;
  background:linear-gradient(135deg,#3a86e8,#0d4aa8);box-shadow:0 6px 16px -6px rgba(21,101,211,.7)}
.brand .mark svg{width:22px;height:22px}
.brand small{display:block;font-family:var(--font);font-weight:500;font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--molten);margin-top:-2px}
.nav{display:flex;align-items:center;gap:6px}
.nav>li>a{display:block;padding:10px 16px;font-family:var(--display);font-weight:600;font-size:15px;
  color:rgba(255,255,255,.92);border-radius:8px;transition:background .2s,color .2s}
.nav>li>a:hover{background:rgba(255,255,255,.1)}
.header-actions{display:flex;align-items:center;gap:14px}
.lang-toggle{display:flex;align-items:center;gap:0;border:1.5px solid rgba(255,255,255,.3);border-radius:100px;
  overflow:hidden;font-family:var(--display);font-weight:600;font-size:13px}
.lang-toggle button{background:transparent;color:rgba(255,255,255,.8);border:0;padding:7px 13px;transition:.2s}
.lang-toggle button.active{background:var(--molten);color:#fff}

/* scrolled / solid header */
.site-header.solid{background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(14px);
  box-shadow:0 1px 0 var(--line),0 6px 24px -16px rgba(0,0,0,.3);padding:12px 0}
.site-header.solid .brand{color:var(--ink)}
.site-header.solid .nav>li>a{color:var(--text)}
.site-header.solid .nav>li>a:hover{background:var(--bg-soft)}
.site-header.solid .lang-toggle{border-color:var(--line)}
.site-header.solid .lang-toggle button{color:var(--muted)}
.site-header.solid .lang-toggle button.active{color:#fff}
/* inner pages always solid theme (stays fixed like the overlay header) */
.site-header.static-solid{background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(14px);
  box-shadow:0 1px 0 var(--line),0 6px 24px -16px rgba(0,0,0,.25);padding:12px 0}
.site-header.static-solid .brand{color:var(--ink)}
.site-header.static-solid .nav>li>a{color:var(--text)}
.site-header.static-solid .lang-toggle{border-color:var(--line)}
.site-header.static-solid .lang-toggle button{color:var(--muted)}

/* ---------- Mega menu ---------- */
.has-mega{position:relative}
.mega{position:fixed;left:0;right:0;top:0;margin-top:70px;background:#fff;color:var(--text);
  border-top:1px solid var(--line);box-shadow:var(--shadow-lg);
  opacity:0;visibility:hidden;transform:translateY(-10px);transition:.28s var(--ease);z-index:190}
.has-mega:hover .mega,.mega:hover{opacity:1;visibility:visible;transform:translateY(0)}
.mega-inner{max-width:var(--container);margin:0 auto;padding:34px 28px;display:grid;
  grid-template-columns:1.3fr 1fr;gap:40px}
.mega-col h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.mega-links.one{grid-template-columns:1fr}
.mega-links a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:10px;
  font-family:var(--display);font-weight:600;font-size:14.5px;transition:.18s}
.mega-links a:hover{background:var(--molten-soft);color:#c2440a}
.mega-links a .dot{width:8px;height:8px;border-radius:3px;background:var(--molten);flex:0 0 auto}
.mega-feature{background:var(--ink);border-radius:var(--radius);padding:26px;color:#fff;display:flex;
  flex-direction:column;justify-content:flex-end;min-height:220px;position:relative;overflow:hidden}
.mega-feature::after{content:"";position:absolute;inset:0;background:radial-gradient(120% 90% at 80% 0%,rgba(21,101,211,.45),transparent 60%)}
.mega-feature>*{position:relative;z-index:1}
.mega-feature h4{color:var(--molten);font-size:12px}
.mega-feature p{font-size:15px;color:var(--muted-d);margin:8px 0 16px}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:#fff;overflow:hidden;isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:-2;background:#06122a}
.hero-media .slide,.hero-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-media .slide{opacity:0;transform:scale(1.12);animation:kenburns 24s linear infinite;will-change:opacity,transform}
.hero-media .slide.show{opacity:1;transition:opacity 1.6s ease}
@keyframes kenburns{0%{transform:scale(1.04)}100%{transform:scale(1.18)}}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(105deg,rgba(7,20,41,.92) 0%,rgba(7,20,41,.72) 38%,rgba(7,20,41,.35) 100%),
             linear-gradient(0deg,rgba(7,20,41,.85),transparent 55%)}
.hero-inner{padding:120px 0 80px;max-width:760px}
.hero .tag{display:inline-flex;align-items:center;gap:10px;padding:8px 16px;border-radius:100px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);font-size:13px;font-weight:600;
  font-family:var(--display);letter-spacing:.04em;backdrop-filter:blur(6px);margin-bottom:24px}
.hero .tag .pulse{width:8px;height:8px;border-radius:50%;background:var(--molten);box-shadow:0 0 0 0 rgba(21,101,211,.7);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(21,101,211,.6)}70%{box-shadow:0 0 0 12px rgba(21,101,211,0)}100%{box-shadow:0 0 0 0 rgba(21,101,211,0)}}
.hero h1{font-size:clamp(38px,6vw,76px);line-height:1.03}
.hero h1 .accent{color:var(--molten)}
.hero p.sub{font-size:clamp(17px,2vw,21px);color:rgba(255,255,255,.82);margin:22px 0 36px;max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:2;display:flex;
  flex-direction:column;align-items:center;gap:8px;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.65)}
.hero-scroll .mouse{width:24px;height:38px;border:2px solid rgba(255,255,255,.5);border-radius:14px;position:relative}
.hero-scroll .mouse::after{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:4px;height:7px;background:#fff;border-radius:2px;animation:scrolldot 1.8s infinite}
@keyframes scrolldot{0%{opacity:0;top:7px}40%{opacity:1}80%{opacity:0;top:18px}100%{opacity:0}}
.hero-vidctl{position:absolute;right:26px;bottom:26px;z-index:3;display:flex;gap:8px}
.hero-vidctl button{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.3);
  background:rgba(0,0,0,.35);color:#fff;display:grid;place-items:center;backdrop-filter:blur(6px)}
.hero-vidctl svg{width:16px;height:16px}
.placeholder-note{position:absolute;left:28px;bottom:24px;z-index:3;font-size:11px;letter-spacing:.06em;
  color:rgba(255,255,255,.55);background:rgba(0,0,0,.35);padding:5px 11px;border-radius:100px;backdrop-filter:blur(4px)}

/* ---------- Stat band ---------- */
.statband{background:var(--ink-2);color:#fff;position:relative;z-index:5}
.statband .grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;padding:42px 0}
.stat{text-align:center;padding:8px 14px;border-right:1px solid var(--line-dark)}
.stat:last-child{border-right:0}
.stat .num{font-family:var(--display);font-weight:800;font-size:clamp(28px,3.2vw,42px);
  color:#fff;contain:content}
.stat .num .suffix{color:var(--molten)}
.stat .lbl{font-size:13.5px;color:var(--muted-d);margin-top:6px}
.stat-note{text-align:center;font-size:12px;color:var(--muted-d);opacity:.6;padding-bottom:18px}

/* ---------- Product cards ---------- */
.cards{display:grid;gap:24px}
.cards.c3{grid-template-columns:repeat(3,1fr)}
.cards.c4{grid-template-columns:repeat(4,1fr)}
.cards.c2{grid-template-columns:repeat(2,1fr)}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s,border-color .35s;display:flex;flex-direction:column}
.pcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.pcard .thumb{aspect-ratio:4/3;background:#06122a;overflow:hidden;position:relative}
.pcard .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.pcard:hover .thumb img{transform:scale(1.07)}
.pcard .thumb .cat-chip{position:absolute;top:12px;left:12px;font-size:11px;font-weight:600;font-family:var(--display);
  letter-spacing:.03em;padding:5px 11px;border-radius:100px;background:rgba(0,0,0,.55);color:#fff;backdrop-filter:blur(4px)}
.pcard .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.pcard h3{font-size:18.5px}
.pcard .body p{color:var(--muted);font-size:14.5px;margin:9px 0 16px;flex:1}
.pcard .foot{display:flex;align-items:center;justify-content:space-between;gap:10px}
.pcard .foot .btn{padding:9px 16px;font-size:13px}

/* category cards (big) */
.catcard{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:340px;display:flex;
  flex-direction:column;justify-content:flex-end;padding:28px;color:#fff;isolation:isolate}
.catcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .7s var(--ease)}
.catcard:hover img{transform:scale(1.08)}
.catcard::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(12,14,18,.1) 0%,rgba(12,14,18,.55) 55%,rgba(12,14,18,.92) 100%)}
.catcard .ico{width:48px;height:48px;border-radius:12px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);
  display:grid;place-items:center;margin-bottom:auto;backdrop-filter:blur(6px)}
.catcard .ico svg{width:24px;height:24px;color:#fff}
.catcard .tagk{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--molten-2)}
.catcard h3{font-size:23px;margin:8px 0 8px}
.catcard p{font-size:14.5px;color:rgba(255,255,255,.78)}
.catcard .more{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-family:var(--display);
  font-weight:600;font-size:14px;color:#fff}
.catcard .more svg{width:16px;transition:transform .25s var(--ease)}
.catcard:hover .more svg{transform:translateX(5px)}

/* ---------- Feature / why grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feature{padding:28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);transition:.3s}
.feature:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.feature .ico{width:54px;height:54px;border-radius:14px;background:var(--molten-soft);color:var(--molten);
  display:grid;place-items:center;margin-bottom:18px}
.feature .ico svg{width:26px;height:26px}
.feature h3{font-size:19px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:15px}
.dark .feature{background:var(--ink-3);border-color:var(--line-dark)}
.dark .feature p{color:var(--muted-d)}
.dark .feature .ico{background:rgba(21,101,211,.16)}

/* ---------- Factory band ---------- */
.factory{position:relative;overflow:hidden}
.factory .split{display:grid;grid-template-columns:1.05fr .95fr;gap:0;align-items:stretch}
.factory .copy{padding:96px 64px 96px 0}
.factory .media{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:460px;background:#06122a}
.factory .media .slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.4s}
.factory .media .slide.show{opacity:1}
.factory .media .play{position:absolute;inset:0;display:grid;place-items:center}
.factory .media .play .pbtn{width:84px;height:84px;border-radius:50%;background:rgba(21,101,211,.92);
  display:grid;place-items:center;box-shadow:0 0 0 0 rgba(21,101,211,.6);animation:pulse 2.4s infinite}
.factory .media .play .pbtn svg{width:30px;height:30px;color:#fff;margin-left:4px}
.mini-stats{display:flex;gap:30px;margin-top:30px;flex-wrap:wrap}
.mini-stats .ms .n{font-family:var(--display);font-weight:800;font-size:30px;color:var(--molten)}
.mini-stats .ms .l{font-size:13.5px;color:var(--muted-d)}

/* ---------- Industries ---------- */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ind{display:flex;gap:16px;padding:24px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);
  transition:.3s;align-items:flex-start}
.ind:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:transparent}
.ind .ico{width:46px;height:46px;border-radius:12px;background:var(--ink);color:var(--molten);display:grid;place-items:center;flex:0 0 auto}
.ind .ico svg{width:24px;height:24px}
.ind h3{font-size:17px}
.ind p{color:var(--muted);font-size:14px;margin-top:5px}

/* ---------- Certs ---------- */
.cert-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cert{display:flex;align-items:center;gap:12px;padding:14px 20px;border-radius:12px;background:#fff;
  border:1px solid var(--line);min-width:180px}
.cert .badge{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;
  background:conic-gradient(from 180deg,#1565d3,#3a86e8,#0d4aa8,#1565d3);color:#fff;font-family:var(--display);
  font-weight:800;font-size:12px}
.cert .badge.sgs{background:#0b6}
.cert .c-code{font-family:var(--display);font-weight:700;font-size:15px}
.cert .c-lbl{font-size:12px;color:var(--muted)}

/* ---------- Cert gallery (real certificate scans) ---------- */
.cert-gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.cert-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:.25s;box-shadow:var(--shadow)}
.cert-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(21,101,211,.4)}
.cert-shot{aspect-ratio:4/3;background:var(--bg-soft);display:grid;place-items:center;overflow:hidden;padding:14px}
.cert-shot img{width:100%;height:100%;object-fit:contain}
.cert-shot.cert-badge{background:linear-gradient(135deg,var(--ink),#1565d3)}
.cert-shot.cert-badge span{color:#fff;font-family:var(--display);font-weight:800;font-size:26px;letter-spacing:.04em}
.cert-meta{padding:14px 16px;border-top:1px solid var(--line)}
.cert-meta .c-code{font-family:var(--display);font-weight:700;font-size:15px;color:var(--ink)}
.cert-meta .c-lbl{font-size:12.5px;color:var(--muted);margin-top:3px;line-height:1.4}
@media(max-width:900px){.cert-gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cert-gallery{grid-template-columns:1fr}}

/* ---------- Modal WhatsApp quick-contact ---------- */
.modal-wa{display:flex;align-items:center;gap:11px;margin:2px 0 16px;padding:12px 15px;border-radius:12px;
  background:#eafaf0;border:1px solid #bfe8cd;color:#0a7a3d;font-size:13.5px;font-weight:600;transition:.2s}
.modal-wa:hover{background:#dff5e7}
.modal-wa svg{width:22px;height:22px;flex:0 0 auto;color:#25b366}

/* ---------- Case studies ---------- */
.case{display:grid;grid-template-columns:1fr;gap:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;transition:.3s}
.case:hover{box-shadow:var(--shadow-lg);transform:translateY(-5px)}
.case .thumb{aspect-ratio:16/10;overflow:hidden;background:#06122a}
.case .thumb img{width:100%;height:100%;object-fit:cover}
.case .body{padding:24px}
.case .kpi{font-family:var(--display);font-weight:800;font-size:20px;color:var(--molten);margin-bottom:8px}
.case .body p{color:var(--muted);font-size:14.5px}

/* ---------- CTA strip ---------- */
.cta-band{background:linear-gradient(120deg,var(--ink) 0%,#0e3a72 56%,#1565d3 100%);color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-10%;top:-40%;width:60%;height:180%;
  background:radial-gradient(circle,rgba(21,101,211,.35),transparent 60%)}
.cta-band .inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;padding:60px 0}
.cta-band h2{font-size:clamp(26px,3.2vw,40px)}
.cta-band p{color:rgba(255,255,255,.8);margin-top:10px;max-width:520px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--muted-d);padding:70px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer p{font-size:14.5px;color:var(--muted-d);max-width:300px}
.foot-col h4{color:#fff;font-size:14px;letter-spacing:.04em;margin-bottom:16px;font-family:var(--display)}
.foot-col a{display:block;padding:6px 0;font-size:14.5px;color:var(--muted-d);transition:.2s}
.foot-col a:hover{color:var(--molten)}
.foot-contact li{display:flex;gap:10px;font-size:14px;padding:6px 0}
.foot-contact svg{width:17px;height:17px;color:var(--molten);flex:0 0 auto;margin-top:3px}
.wechat{margin-top:16px;display:flex;align-items:center;gap:12px}
.wechat .qr{width:78px;height:78px;border-radius:10px;background:#fff;display:grid;place-items:center;flex:0 0 auto}
.wechat .qr svg{width:62px;height:62px}
.foot-bottom{margin-top:46px;padding-top:24px;border-top:1px solid var(--line-dark);display:flex;
  justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted-d)}

/* ---------- Page hero (inner pages) ---------- */
.page-hero{background:var(--ink);color:#fff;padding:150px 0 70px;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-5%;top:-30%;width:50%;height:160%;
  background:radial-gradient(circle,rgba(21,101,211,.28),transparent 62%)}
.page-hero .inner{position:relative;z-index:1;max-width:760px}
.page-hero h1{font-size:clamp(32px,4.6vw,56px)}
.page-hero p{color:var(--muted-d);font-size:18px;margin-top:16px;max-width:600px}
.crumbs{display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted-d);margin-bottom:18px}
.crumbs a:hover{color:var(--molten)}
.crumbs span{opacity:.5}

/* ---------- Filter tabs ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.tab{padding:10px 20px;border-radius:100px;border:1.5px solid var(--line);background:#fff;font-family:var(--display);
  font-weight:600;font-size:14px;color:var(--muted);transition:.2s}
.tab:hover{border-color:var(--ink);color:var(--ink)}
.tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}

/* ---------- Product detail ---------- */
.pd-grid{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.pd-gallery .main{border-radius:var(--radius-lg);overflow:hidden;background:#06122a;aspect-ratio:1/1}
.pd-gallery .main img{width:100%;height:100%;object-fit:cover}
.pd-thumbs{display:flex;gap:12px;margin-top:14px}
.pd-thumbs img{width:84px;height:84px;object-fit:cover;border-radius:10px;border:2px solid transparent;cursor:pointer;background:#06122a}
.pd-thumbs img.active{border-color:var(--molten)}
.pd-info .cat-chip{display:inline-block;font-size:12px;font-weight:600;color:var(--molten);text-transform:uppercase;letter-spacing:.08em}
.pd-info h1{font-size:clamp(28px,3.4vw,40px);margin:10px 0 14px}
.pd-info .desc{font-size:17px;color:var(--muted);margin-bottom:24px}
.spec-table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:14px}
.spec-table th,.spec-table td{text-align:left;padding:13px 18px;font-size:14.5px;border-bottom:1px solid var(--line)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.spec-table th{background:var(--bg-soft);font-family:var(--display);font-weight:600;width:46%;color:var(--text)}
.spec-table td{color:var(--muted)}
.spec-cap{font-size:12.5px;color:var(--muted);margin-bottom:22px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 26px}
.chips span{font-size:13px;padding:6px 14px;border-radius:100px;background:var(--bg-soft);border:1px solid var(--line);color:var(--muted)}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap;padding-top:8px;border-top:1px solid var(--line);padding-top:24px}

/* ---------- Forms / modal ---------- */
.modal-backdrop{position:fixed;inset:0;background:rgba(8,10,14,.6);backdrop-filter:blur(4px);z-index:500;
  display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:.3s}
.modal-backdrop.open{opacity:1;visibility:visible}
.modal{background:#fff;border-radius:var(--radius-lg);max-width:520px;width:100%;max-height:92vh;overflow:auto;
  box-shadow:var(--shadow-lg);transform:translateY(20px) scale(.98);transition:.32s var(--ease)}
.modal-backdrop.open .modal{transform:none}
.modal-head{padding:26px 28px 0;display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.modal-head h3{font-size:23px}
.modal-head .x{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;display:grid;place-items:center;flex:0 0 auto}
.modal-head .x svg{width:18px}
.modal-sub{padding:6px 28px 0;color:var(--muted);font-size:14.5px}
form.dx-form{padding:20px 28px 28px;display:grid;gap:14px}
.field{display:grid;gap:6px}
.field.row{grid-template-columns:1fr 1fr;gap:14px}
.field label{font-size:13px;font-weight:600;font-family:var(--display);color:var(--text)}
.field .req{color:var(--molten)}
.field input,.field textarea,.field select{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:10px;
  font-family:inherit;font-size:15px;background:var(--bg-soft);transition:.2s}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--molten);background:#fff}
.field textarea{min-height:96px;resize:vertical}
.form-note{font-size:12px;color:var(--muted);display:flex;gap:8px;align-items:flex-start}
.form-ok{display:none;padding:30px 28px 34px;text-align:center}
.form-ok.show{display:block}
.form-ok .ck{width:64px;height:64px;border-radius:50%;background:var(--molten-soft);color:var(--molten);display:grid;place-items:center;margin:0 auto 16px}
.form-ok .ck svg{width:32px}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

/* ---------- Lang visibility ---------- */
[data-zh]{display:none}
html[lang="zh"] [data-en]{display:none}
html[lang="zh"] [data-zh]{display:revert}
.i18n-inline [data-en],.i18n-inline [data-zh]{display:inline}
html[lang="zh"] .i18n-inline [data-en]{display:none}

/* ---------- Mobile nav ---------- */
.hamburger{display:none;width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.06);color:#fff;place-items:center}
.solid .hamburger,.static-solid .hamburger{color:var(--ink);border-color:var(--line);background:#fff}
.hamburger svg{width:22px}
.mobile-nav{position:fixed;inset:0;background:var(--ink);z-index:400;padding:90px 28px 28px;transform:translateX(100%);
  transition:transform .35s var(--ease);overflow:auto}
.mobile-nav.open{transform:none}
.mobile-nav a{display:block;padding:16px 4px;font-family:var(--display);font-weight:600;font-size:20px;color:#fff;
  border-bottom:1px solid var(--line-dark)}
.mobile-nav a.sub{font-size:16px;padding-left:18px;color:var(--muted-d)}
.mobile-nav .mclose{position:absolute;top:24px;right:24px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line-dark);background:transparent;color:#fff;display:grid;place-items:center}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .factory .copy{padding:64px 36px 64px 0}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:920px){
  .nav,.header-actions .btn{display:none}
  .lang-cur{padding:7px 11px}
  .hamburger{display:grid}
  .statband .grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .stat:nth-child(2n){border-right:0}
  .cards.c3,.cards.c4{grid-template-columns:repeat(2,1fr)}
  .feature-grid,.ind-grid{grid-template-columns:1fr 1fr}
  .factory .split{grid-template-columns:1fr}
  .factory .copy{padding:56px 0 36px}
  .factory .media{min-height:340px}
  .pd-grid{grid-template-columns:1fr;gap:32px}
  .mega{display:none}
  .section{padding:68px 0}
}
@media (max-width:600px){
  .container{padding:0 20px}
  .cards.c3,.cards.c4,.cards.c2,.feature-grid,.ind-grid,.foot-grid{grid-template-columns:1fr}
  .statband .grid{grid-template-columns:1fr 1fr}
  .hero-inner{padding-top:130px}
  .field.row{grid-template-columns:1fr}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
  .stat .num{font-size:30px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;animation-iteration-count:1!important}
  .reveal{opacity:1;transform:none}
  .hero-media .slide{animation:none}
}

/* real brand logo + wechat QR photo */
.brand img.mark{width:66px;height:38px;object-fit:contain;background:#fff;padding:3px 6px}
.wechat img.qr{object-fit:contain;padding:4px}

/* ================= language picker (EN / 中文 / ES / AR) ================= */
.lang-menu{position:relative}
.lang-cur{display:inline-flex;align-items:center;gap:7px;background:transparent;border:1.5px solid rgba(255,255,255,.35);
  border-radius:100px;color:rgba(255,255,255,.92);padding:8px 14px;font-family:var(--display);font-weight:600;font-size:13.5px;transition:.2s}
.lang-cur svg{width:15px;height:15px}
.lang-cur:hover{border-color:var(--molten);color:#fff}
.site-header.solid .lang-cur,.site-header.static-solid .lang-cur{border-color:var(--line);color:var(--muted)}
.lang-opts{position:absolute;top:calc(100% + 10px);inset-inline-end:0;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-lg);min-width:150px;padding:6px;display:none;z-index:520}
.lang-menu.open .lang-opts{display:block}
.lang-opts button{display:block;width:100%;text-align:start;background:transparent;border:0;border-radius:9px;
  padding:10px 14px;font-family:var(--display);font-weight:600;font-size:14px;color:var(--text);cursor:pointer}
.lang-opts button:hover{background:var(--bg-soft)}
.lang-opts button.active{background:var(--ink);color:#fff}
.mnav-langs{margin-top:22px;display:flex;flex-wrap:wrap;gap:8px}
.mnav-langs button{background:transparent;border:1px solid rgba(255,255,255,.3);border-radius:100px;color:#fff;padding:8px 16px;font-size:14px}
.mnav-langs button.active{background:var(--molten);border-color:var(--molten)}

/* ================= es / ar language spans ================= */
[data-es],[data-ar]{display:none}
html[lang="es"] [data-en].has-es{display:none}
html[lang="es"] [data-es]{display:revert}
html[lang="ar"] [data-en].has-ar{display:none}
html[lang="ar"] [data-ar]{display:revert}
/* chip rows are flex containers — revert would break them */
html[lang="zh"] .chips[data-zh],html[lang="es"] .chips[data-es],html[lang="ar"] .chips[data-ar]{display:flex}
html[lang="ar"] body{line-height:1.85}
html[dir="rtl"] h1,html[dir="rtl"] h2,html[dir="rtl"] h3{letter-spacing:0}