/* ============ Chaos International — 企业官网样式 ============ */
:root{
  --ink:#0A1A2F;
  --ink-2:#2C4058;
  --muted:#6B7E95;
  --line:#E3EAF3;
  --line-2:#EDF2F8;
  --bg:#FFFFFF;
  --soft:#F5F8FC;
  --navy:#0B2545;
  --navy-2:#081A31;
  --brand:#1652D0;
  --brand-dark:#0E3FA8;
  --brand-lite:#EAF0FF;
  --accent:#3D8BFF;
  --gold:#B98A45;
  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(11,37,69,.05), 0 6px 18px -8px rgba(11,37,69,.10);
  --shadow-md:0 2px 4px rgba(11,37,69,.04), 0 18px 40px -20px rgba(11,37,69,.22);
  --max:1180px;
  --font:"Inter","Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
::selection{background:#CFE0FF;color:var(--ink)}

.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 28px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:10px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, background .18s ease, box-shadow .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -8px rgba(22,82,208,.6)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px -10px rgba(22,82,208,.7)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:#C3D3E8;transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-block{width:100%}

/* ---------- PDF download button emphasis ---------- */
.btn-dl{position:relative}
.btn-dl svg{animation:dl-nudge 2.8s ease-in-out infinite}
.btn-dl:hover svg{animation-duration:.9s}
@keyframes dl-nudge{
  0%,55%,100%{transform:translateY(0)}
  62%{transform:translateY(3px)}
  70%{transform:translateY(-1px)}
  77%{transform:translateY(2px)}
  84%{transform:translateY(0)}
}
.btn-dl::after{
  content:"";position:absolute;inset:-3px;border-radius:12px;
  border:2px solid rgba(22,82,208,.45);
  animation:dl-ring 2.8s ease-out infinite;pointer-events:none;
}
.btn-dl:hover::after{animation-duration:1.4s}
@keyframes dl-ring{
  0%{opacity:.8;transform:scale(.98)}
  45%{opacity:0;transform:scale(1.12)}
  100%{opacity:0;transform:scale(1.12)}
}
@media (prefers-reduced-motion:reduce){
  .btn-dl svg,.btn-dl::after{animation:none}
}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px) saturate(1.4);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.nav.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 22px -18px rgba(10,26,47,.4);background:rgba(255,255,255,.94)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.logo{display:flex;align-items:center;gap:11px}
.logo-mark{flex:none;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:17px;letter-spacing:.16em;font-weight:800;color:var(--ink)}
.logo-text em{font-style:normal;font-size:10.5px;color:var(--muted);letter-spacing:.02em;margin-top:3px;white-space:nowrap}

.links{display:flex;align-items:center;gap:6px}
.links>a{
  position:relative;font-size:14.5px;color:var(--ink-2);font-weight:500;
  padding:9px 12px;border-radius:8px;transition:color .16s ease,background .16s ease;
}
.links>a:hover{color:var(--brand);background:#F2F6FD}
.links-cta{color:#fff !important;margin-left:8px}
.links-cta:hover{background:var(--brand-dark) !important}

.nav-right{display:flex;align-items:center;gap:14px}
.nav-tel{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  padding:8px 13px;border:1px solid var(--line);border-radius:8px;
  transition:border-color .16s,color .16s;
}
.nav-tel:hover{color:var(--brand);border-color:#C3D3E8}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:9px;background:#fff;padding:0;cursor:pointer}
.burger span{display:block;width:16px;height:1.6px;background:var(--ink);margin:3.5px auto;transition:transform .2s ease,opacity .2s ease}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 0;overflow:hidden}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(900px 420px at 78% -10%, #E7EFFF 0%, rgba(231,239,255,0) 65%),
    radial-gradient(700px 340px at 8% 0%, #F0F5FF 0%, rgba(240,245,255,0) 70%),
    linear-gradient(180deg,#FBFCFE 0%, #FFFFFF 78%);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(to right, rgba(14,42,77,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14,42,77,.05) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 72%);
  opacity:.75;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;
  padding-bottom:64px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);background:#fff;border:1px solid #DCE6F7;
  padding:7px 14px;border-radius:999px;margin-bottom:26px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(22,82,208,.12)}
h1{
  font-size:clamp(34px,4.4vw,54px);
  line-height:1.22;letter-spacing:-.02em;font-weight:900;
  color:var(--ink);
}
h1 .hl{color:var(--brand);position:relative;white-space:nowrap}
h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;
  background:linear-gradient(90deg,rgba(61,139,255,.22),rgba(61,139,255,0));
  border-radius:2px;z-index:-1;
}
.lede{margin-top:22px;font-size:16.5px;color:var(--ink-2);max-width:540px;line-height:1.85}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line)}
.hero-points li{position:relative;padding-left:18px;font-size:13.5px;color:var(--muted)}
.hero-points li::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:1px;
  background:var(--accent);transform:rotate(45deg);
}

/* line card panel */
.linecard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);overflow:hidden;
}
.linecard-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 22px;border-bottom:1px solid var(--line-2);
  background:linear-gradient(180deg,#FBFDFF,#fff);
}
.linecard-head b{display:block;font-size:11px;letter-spacing:.16em;color:var(--brand);font-weight:700}
.linecard-head span:not(.lc-badge){font-size:15px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.lc-badge{
  font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:4px 8px;background:#fff;
}
.lc-grid{display:grid;grid-template-columns:1fr 1fr}
.lc-item{padding:18px 20px;border-bottom:1px solid var(--line-2);transition:background .18s ease}
.lc-item:nth-child(odd){border-right:1px solid var(--line-2)}
.lc-item:hover{background:#F7FAFF}
.lc-code{font-size:11px;font-weight:700;color:#B7C6D9;letter-spacing:.1em}
.lc-item h3{font-size:15px;font-weight:700;margin:4px 0 5px;letter-spacing:.01em}
.lc-item p{font-size:12.5px;color:var(--muted);line-height:1.6}
.lc-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;background:#F8FAFE;border-top:1px solid var(--line-2);
  font-size:12.5px;color:var(--muted);
}
.lc-foot a{color:var(--brand);font-weight:600}

/* trustbar */
.trustbar{
  position:relative;z-index:1;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:#fff;
}
.trust{padding:22px 26px;border-right:1px solid var(--line-2)}
.trust:last-child{border-right:0}
.trust b{display:block;font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.trust span{font-size:12.5px;color:var(--muted)}

/* ---------- Section base ---------- */
.section{padding:96px 0}
.section.soft{background:var(--soft)}
.sec-head{max-width:720px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{
  font-size:11.5px;font-weight:700;letter-spacing:.22em;color:var(--brand);
  text-transform:uppercase;margin-bottom:16px;
}
.kicker.light{color:#7FAEFF}
h2{font-size:clamp(26px,3vw,38px);line-height:1.3;letter-spacing:-.015em;font-weight:900}
.sec-sub{margin-top:16px;font-size:15.5px;color:var(--muted);line-height:1.85}

/* ---------- Products ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.prod{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px 24px;position:relative;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.prod:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#CFDCEE}
.prod-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:16px}
.prod-no{font-size:11.5px;font-weight:800;color:#B7C6D9;letter-spacing:.12em}
.prod-ico{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--brand-lite);color:var(--brand);
}
.prod-ico svg{width:22px;height:22px}
.prod h3{font-size:19px;font-weight:800;letter-spacing:-.01em}
.prod .en{font-size:10.5px;font-weight:600;letter-spacing:.18em;color:#9AACC2;margin:3px 0 16px}
.prod ul{display:flex;flex-wrap:wrap;gap:7px 8px;margin-bottom:18px}
.prod ul li{
  font-size:12.5px;color:var(--ink-2);background:#F6F9FD;
  border:1px solid var(--line-2);border-radius:6px;padding:5px 9px;
}
.brands-mini{
  font-size:11px;letter-spacing:.04em;color:#94A6BC;
  padding-top:14px;border-top:1px dashed var(--line);
  line-height:1.7;
}

/* ---------- Product card backgrounds ---------- */
.pb-cap,.pb-mag,.pb-rel,.pb-fil,.pb-pro,.pb-con{
  background-size:100% 100%,auto 62%;
  background-repeat:no-repeat,no-repeat;
  background-position:left top,right bottom;
  overflow:hidden;
}
.pb-cap{background-image:linear-gradient(105deg,#fff 30%,rgba(255,255,255,.85) 55%,rgba(255,255,255,.42) 100%),url("img/card/bg-capacitors.jpg")}
.pb-mag{background-image:linear-gradient(105deg,#fff 30%,rgba(255,255,255,.85) 55%,rgba(255,255,255,.42) 100%),url("img/card/bg-magnetics.jpg")}
.pb-rel{background-image:linear-gradient(105deg,#fff 30%,rgba(255,255,255,.85) 55%,rgba(255,255,255,.42) 100%),url("img/card/bg-relays.jpg")}
.pb-fil{background-image:linear-gradient(105deg,#fff 30%,rgba(255,255,255,.85) 55%,rgba(255,255,255,.42) 100%),url("img/card/bg-filters.jpg")}
.pb-pro{background-image:linear-gradient(105deg,#fff 30%,rgba(255,255,255,.85) 55%,rgba(255,255,255,.42) 100%),url("img/card/bg-protection.jpg")}
.pb-con{background-image:linear-gradient(105deg,#fff 30%,rgba(255,255,255,.85) 55%,rgba(255,255,255,.42) 100%),url("img/card/bg-connectors.jpg")}
@media (max-width:620px){
  /* 窄屏卡片文字占比更高，整体加深纱罩保证可读性 */
  .pb-cap,.pb-mag,.pb-rel,.pb-fil,.pb-pro,.pb-con{
    background-size:100% 100%,auto 52%;
    background-image:linear-gradient(120deg,#fff 46%,rgba(255,255,255,.9) 68%,rgba(255,255,255,.6) 100%),var(--pb-img);
  }
  .pb-cap{--pb-img:url("img/card/bg-capacitors.jpg")}
  .pb-mag{--pb-img:url("img/card/bg-magnetics.jpg")}
  .pb-rel{--pb-img:url("img/card/bg-relays.jpg")}
  .pb-fil{--pb-img:url("img/card/bg-filters.jpg")}
  .pb-pro{--pb-img:url("img/card/bg-protection.jpg")}
  .pb-con{--pb-img:url("img/card/bg-connectors.jpg")}
}

/* ---------- Applications ---------- */
.apps{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.app{background-color:#fff;padding:30px 28px;transition:background-color .2s ease}
.app:hover{background-color:#FBFDFF}
.app-no{font-size:11.5px;font-weight:800;color:#B7C6D9;letter-spacing:.12em}
.app h3{font-size:18px;font-weight:800;margin:12px 0 2px}
.app .en{font-size:10.5px;letter-spacing:.16em;color:#9AACC2;font-weight:600}
.app-desc{margin-top:12px;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- Application cell backgrounds ---------- */
.ab-ind,.ab-nrg,.ab-auto,.ab-tel,.ab-cns,.ab-med{
  background-size:cover;background-repeat:no-repeat;background-position:right bottom;
  position:relative;overflow:hidden;
}
.ab-ind{background-image:linear-gradient(100deg,#fff 40%,rgba(255,255,255,.88) 62%,rgba(255,255,255,.5) 100%),url("img/app/app-industrial.jpg")}
.ab-nrg{background-image:linear-gradient(100deg,#fff 40%,rgba(255,255,255,.88) 62%,rgba(255,255,255,.5) 100%),url("img/app/app-energy.jpg")}
.ab-auto{background-image:linear-gradient(100deg,#fff 40%,rgba(255,255,255,.88) 62%,rgba(255,255,255,.5) 100%),url("img/app/app-automotive.jpg")}
.ab-tel{background-image:linear-gradient(100deg,#fff 40%,rgba(255,255,255,.88) 62%,rgba(255,255,255,.5) 100%),url("img/app/app-telecom.jpg")}
.ab-cns{background-image:linear-gradient(100deg,#fff 40%,rgba(255,255,255,.88) 62%,rgba(255,255,255,.5) 100%),url("img/app/app-consumer.jpg")}
.ab-med{background-image:linear-gradient(100deg,#fff 40%,rgba(255,255,255,.88) 62%,rgba(255,255,255,.5) 100%),url("img/app/app-medical.jpg")}
@media (max-width:620px){
  .ab-ind,.ab-nrg,.ab-auto,.ab-tel,.ab-cns,.ab-med{
    background-image:linear-gradient(115deg,#fff 52%,rgba(255,255,255,.9) 72%,rgba(255,255,255,.62) 100%),var(--ab-img);
  }
  .ab-ind{--ab-img:url("img/app/app-industrial.jpg")}
  .ab-nrg{--ab-img:url("img/app/app-energy.jpg")}
  .ab-auto{--ab-img:url("img/app/app-automotive.jpg")}
  .ab-tel{--ab-img:url("img/app/app-telecom.jpg")}
  .ab-cns{--ab-img:url("img/app/app-consumer.jpg")}
  .ab-med{--ab-img:url("img/app/app-medical.jpg")}
}

/* ---------- Advantages ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.adv{
  position:relative;padding:32px 30px;border:1px solid var(--line);
  border-radius:var(--radius);background:#fff;overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease;
}
.adv::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
  opacity:0;transition:opacity .2s ease;
}
.adv:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.adv:hover::before{opacity:1}
.adv-no{font-size:12px;font-weight:800;color:var(--brand);letter-spacing:.14em}
.adv h3{font-size:20px;font-weight:800;margin:12px 0 12px}
.adv p{font-size:14px;color:var(--muted);line-height:1.85;max-width:440px}

/* ---------- Dark split ---------- */
.dark{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.dark::after{
  content:"";position:absolute;right:-140px;top:-140px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(61,139,255,.22),rgba(61,139,255,0) 68%);
}
.dark h2{color:#fff}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;position:relative;z-index:1}
.split-lead{margin-top:20px;font-size:15px;line-height:1.9;color:#B9CBE2;max-width:520px}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin-top:36px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.13);border-radius:12px;overflow:hidden}
.facts li{background:var(--navy);padding:20px 22px}
.facts b{display:block;font-size:15px;font-weight:700;color:#fff;letter-spacing:.01em;word-break:keep-all;line-break:strict}
.facts span{font-size:12px;color:#8FA9C7}
.quality{display:flex;flex-direction:column;gap:1px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.12);border-radius:14px;overflow:hidden;align-self:start}
.quality li{background:rgba(255,255,255,.035);padding:22px 24px}
.quality b{display:block;font-size:15px;font-weight:700;color:#fff}
.quality span{display:block;margin-top:4px;font-size:12.5px;color:#93AAC6;line-height:1.65}

/* ---------- Brands ---------- */
.brand-cols{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.brand-col{background:#fff;padding:26px 28px}
.brand-col h3{font-size:14px;font-weight:800;letter-spacing:.01em;margin-bottom:16px}
.brand-col h3 em{font-style:normal;font-size:10px;letter-spacing:.14em;color:#9AACC2;font-weight:600;margin-left:8px}
.brand-line{display:flex;flex-wrap:wrap;gap:10px}
.brand{
  display:inline-flex;align-items:baseline;gap:6px;
  border:1px solid var(--line);border-radius:8px;padding:9px 13px;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--ink-2);
  background:#FCFDFF;transition:border-color .18s,color .18s,background .18s;
}
.brand i{font-style:normal;font-size:11px;font-weight:500;letter-spacing:0;color:var(--muted)}
.brand:hover{border-color:#C3D3E8;color:var(--brand);background:#F7FAFF}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:start}
.about-p{margin-top:18px;font-size:15px;color:var(--ink-2);line-height:1.9;max-width:580px}
.culture{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:36px 0 30px}
.cul{border-left:2px solid var(--brand);padding-left:14px}
.cul b{display:block;font-size:15px;font-weight:800}
.cul span{display:block;font-size:12.5px;color:var(--muted);line-height:1.65;margin-top:4px}
.cul em{display:block;font-style:normal;font-size:9.5px;letter-spacing:.14em;color:#AEBED2;margin-top:6px;text-transform:uppercase}
.about-quote{
  font-size:15px;color:var(--ink);font-weight:500;line-height:1.85;
  border-left:3px solid var(--gold);padding:4px 0 4px 18px;background:linear-gradient(90deg,#FCF8F1,transparent 60%);
}
.about-side{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.fact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.fact-card:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.fact-card span{display:block;font-size:11.5px;color:var(--muted);letter-spacing:.04em}
.fact-card b{display:block;margin-top:8px;font-size:16px;font-weight:800;letter-spacing:-.01em}
.fact-card.tall{grid-column:1 / -1;background:var(--navy);border-color:var(--navy);color:#fff}
.fact-card.tall span{color:#8FA9C7}
.fact-card.tall b{font-size:17px;line-height:1.6;color:#fff}
.fact-card.tall em{display:block;font-style:normal;margin-top:8px;font-size:10.5px;letter-spacing:.1em;color:#7FAEFF;text-transform:uppercase}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr .92fr;gap:64px;align-items:start}
.contact-list{margin-top:34px;display:flex;flex-direction:column;gap:2px}
.contact-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.contact-list li:last-child{border-bottom:0}
.ci{
  flex:none;width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:#F1F5FC;color:var(--brand);
}
.contact-list b{display:block;font-size:11.5px;color:var(--muted);font-weight:600;letter-spacing:.04em;margin-bottom:3px}
.contact-list span{font-size:14.5px;font-weight:600;color:var(--ink);display:block}
.contact-list em{display:block;font-style:normal;font-size:11.5px;color:#93A6BC;margin-top:3px}
.contact-list a{font-size:14.5px;font-weight:600;color:var(--ink);transition:color .16s}
.contact-list a:hover{color:var(--brand)}

.rfq{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-md);
}
.rfq-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:22px}
.rfq-head h3{font-size:19px;font-weight:800}
.rfq-head span{font-size:11.5px;color:var(--muted)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:block;margin-bottom:14px}
.field>span{display:block;font-size:12px;font-weight:600;color:var(--ink-2);margin-bottom:7px;letter-spacing:.02em}
.field input,.field textarea,.field select{
  width:100%;font-family:inherit;font-size:14px;color:var(--ink);
  background:#FBFCFE;border:1px solid var(--line);border-radius:9px;
  padding:12px 13px;transition:border-color .16s,box-shadow .16s,background .16s;
  appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236B7E95' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:34px;
}
.field textarea{resize:vertical;min-height:104px;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#A9B8C9}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:#9CB8E8;background:#fff;box-shadow:0 0 0 4px rgba(22,82,208,.09);
}
.field input:invalid:not(:placeholder-shown){border-color:#E8B4B4}
.rfq .btn{margin-top:6px}
.rfq-hint{margin-top:13px;font-size:11.5px;color:var(--muted);line-height:1.7;text-align:center}
.rfq-hint a{color:var(--brand);font-weight:600}
.rfq-msg{margin-top:10px;font-size:12.5px;color:var(--brand);text-align:center;min-height:1em}
.rfq-msg.err{color:#C0392B}

/* ---------- Footer ---------- */
.foot{background:var(--navy-2);color:#C6D5E6;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.foot .logo-text b{color:#fff}
.foot .logo-text em{color:#7E97B4}
.foot-brand p{margin-top:16px;font-size:13px;color:#A8BDD5;line-height:1.7}
.foot-brand p.en{font-size:11px;color:#6E88A6;letter-spacing:.02em;margin-top:4px}
.foot-col b{display:block;font-size:12px;font-weight:700;letter-spacing:.1em;color:#fff;margin-bottom:14px;text-transform:uppercase}
.foot-col a,.foot-col span{display:block;font-size:13px;color:#9DB3CD;padding:5px 0;transition:color .16s}
.foot-col a:hover{color:#fff}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:11.5px;color:#7A93B0;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:44px;padding-bottom:52px}
  .lede{max-width:none}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .apps{grid-template-columns:repeat(2,1fr)}
  .split,.about-grid,.contact-grid{grid-template-columns:1fr;gap:44px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:860px){
  .nav-tel{display:none}
  .burger{display:block}
  .links{
    position:fixed;left:0;right:0;top:74px;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 22px 22px;box-shadow:0 20px 40px -24px rgba(10,26,47,.4);
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .2s ease,transform .2s ease;
  }
  .links.open{transform:none;opacity:1;pointer-events:auto}
  .links>a{padding:12px 10px;font-size:15px}
  .links-cta{margin:8px 0 0;justify-content:center}
  .trustbar{grid-template-columns:1fr 1fr}
  .trust:nth-child(2){border-right:0}
  .trust:nth-child(1),.trust:nth-child(2){border-bottom:1px solid var(--line-2)}
  .section{padding:72px 0}
  .adv-grid{grid-template-columns:1fr}
  .culture{grid-template-columns:1fr;gap:18px}
  .facts{grid-template-columns:1fr}
  .about-side{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  .wrap{padding:0 20px}
  .hero{padding-top:48px}
  .prod-grid{grid-template-columns:1fr}
  .apps{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr;gap:0}
  .rfq{padding:22px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-bottom{flex-direction:column;gap:8px}
  .hero-points{gap:12px 18px}
  .lc-grid{grid-template-columns:1fr}
  .lc-item:nth-child(odd){border-right:0}
  h1{font-size:31px}
}
/* ---------- Banners carousel ---------- */
.banners{position:relative;background:var(--navy-2);overflow:hidden}
.slides{position:relative;height:clamp(300px,42vw,460px)}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .7s ease,visibility .7s;z-index:1}
.slide.is-active{opacity:1;visibility:visible;z-index:2}
.slide img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transform:scale(1.04);user-select:none;
}
.slide.is-active img{transform:scale(1);transition:transform 5.5s ease-out}
.slide-scrim{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(7,19,36,.86) 0%,rgba(7,19,36,.62) 42%,rgba(7,19,36,.12) 78%,rgba(7,19,36,.25) 100%);
}
.slide-body{
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;justify-content:center;align-items:flex-start;gap:0;
  max-width:var(--max);
}
.slide-kicker{
  font-size:11px;font-weight:700;letter-spacing:.2em;color:#8FB4FF;text-transform:uppercase;
  margin-bottom:14px;
}
.slide-body h2{
  color:#fff;font-size:clamp(24px,3.2vw,40px);line-height:1.25;letter-spacing:-.015em;
  max-width:560px;
}
.slide-desc{
  margin-top:14px;color:#C9D8EC;font-size:15px;line-height:1.8;max-width:520px;
}
.slide-cta{margin-top:24px;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.32);color:#fff;backdrop-filter:blur(4px)}
.slide-cta:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.5);transform:translateY(-1px)}

.banner-ctrl{
  position:absolute;left:0;right:0;bottom:18px;z-index:5;
  display:flex;align-items:center;justify-content:center;gap:18px;
}
.bnav{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.35);background:rgba(10,22,40,.35);color:#fff;
  cursor:pointer;backdrop-filter:blur(4px);transition:background .16s,border-color .16s,transform .16s;
}
.bnav:hover{background:rgba(22,82,208,.75);border-color:transparent;transform:scale(1.05)}
.dots{display:flex;gap:9px}
.dot{
  width:9px;height:9px;border-radius:99px;border:0;padding:0;cursor:pointer;
  background:rgba(255,255,255,.38);transition:width .25s ease,background .2s ease;
}
.dot.is-active{width:26px;background:#fff}

/* 产品区头部操作按钮 */
.sec-head-actions{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap}

/* ---------- Language switcher ---------- */
.lang{position:relative}
.lang-btn{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 12px;
  border:1px solid var(--line);border-radius:8px;background:#fff;
  font-family:inherit;font-size:13px;font-weight:600;color:var(--ink-2);
  cursor:pointer;transition:border-color .16s ease,color .16s ease,background .16s ease;
}
.lang-btn:hover{border-color:#C3D3E8;color:var(--brand);background:#FBFDFF}
.lang-btn svg{flex:none;opacity:.85}
.lang-btn .chev{transition:transform .18s ease;opacity:.6}
.lang.open .lang-btn .chev{transform:rotate(180deg)}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 8px);min-width:176px;
  background:#fff;border:1px solid var(--line);border-radius:10px;
  box-shadow:0 2px 6px rgba(11,37,69,.05), 0 20px 44px -18px rgba(11,37,69,.3);
  padding:6px;margin:0;list-style:none;z-index:95;
  opacity:0;visibility:hidden;transform:translateY(-4px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s;
}
.lang.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu li{margin:0}
.lang-menu button{
  display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;
  padding:9px 10px;border:0;background:none;border-radius:7px;
  font-family:inherit;font-size:13.5px;font-weight:500;color:var(--ink-2);
  cursor:pointer;text-align:left;transition:background .14s,color .14s;
}
.lang-menu button:hover{background:#F3F7FD;color:var(--brand)}
.lang-menu button em{font-style:normal;font-size:10px;letter-spacing:.1em;color:#A6B6C9}
.lang-menu button[aria-current="true"]{background:#EDF3FE;color:var(--brand);font-weight:700}
.lang-menu button[aria-current="true"] em{color:#5C8BE0}

/* ---------- 多语言排版微调 ---------- */
html[lang="ko"] body{
  font-family:"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic","Inter","Noto Sans SC",sans-serif;
  word-break:keep-all;
}
html[lang="de"] h1,html[lang="de"] h2,html[lang="de"] h3{hyphens:auto}
h1,h2,h3{overflow-wrap:break-word}
html[lang="en"] h1,html[lang="de"] h1{letter-spacing:-.025em;line-height:1.18}
html[lang="en"] .eyebrow,html[lang="de"] .eyebrow,html[lang="ko"] .eyebrow{letter-spacing:.1em}

/* 导航防挤压：链接与电话不换行 */
.links>a,.nav-tel,.lang-btn{white-space:nowrap}
.links{flex-wrap:nowrap}
/* 德语/韩语导航更长：提前收起电话并收紧间距 */
html[lang="de"] .links>a,html[lang="ko"] .links>a{padding:9px 8px;font-size:13.5px}
html[lang="de"] .links-cta,html[lang="ko"] .links-cta{padding:0 14px}
@media (max-width:1240px){
  html[lang="de"] .nav-tel,html[lang="ko"] .nav-tel{display:none}
}

@media (max-width:1080px){
  .nav-tel{display:none}
}
@media (max-width:900px){
  .links{gap:2px}
  .links>a{padding:9px 10px;font-size:14px}
}
@media (max-width:620px){
  .logo-text em{display:none}
  .lang-btn{height:36px;padding:0 10px;font-size:12.5px}
  .slides{height:360px}
  .slide-body{justify-content:flex-end;padding-bottom:66px}
  .slide-desc{font-size:13.5px}
  .slide-cta{margin-top:14px;height:42px;padding:0 18px}
  .lang-menu{min-width:160px}
  .nav-inner{gap:10px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}