/* XINGYUE LIGHTING — site design system (shared by all pages) */
:root{
  --bg:#07070f;
  --bg2:#0c0c1a;
  --panel:rgba(18,18,34,.6);
  --line:rgba(0,240,255,.18);
  --cyan:#00f0ff;
  --magenta:#ff00aa;
  --purple:#7b2ff7;
  --text:#e8eaf6;
  --muted:#8a8fb0;
  --mono:'Consolas','Courier New',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Segoe UI','PingFang SC',Arial,sans-serif;
  overflow-x:hidden;
  line-height:1.6;
}
/* ---- grid backdrop ---- */
.grid-bg{
  position:fixed;inset:0;z-index:-2;
  background-image:
    linear-gradient(rgba(0,240,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,240,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
}
.glow-orb{position:fixed;border-radius:50%;filter:blur(120px);z-index:-1;opacity:.35}
.orb1{width:520px;height:520px;background:var(--purple);top:-180px;left:-120px}
.orb2{width:460px;height:460px;background:var(--cyan);top:30%;right:-180px;opacity:.18}
.orb3{width:400px;height:400px;background:var(--magenta);bottom:-160px;left:30%;opacity:.16}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---- top bar ---- */
.topbar{
  background:rgba(7,7,15,.85);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:100;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.logo-mark{
  width:38px;height:38px;position:relative;flex:none;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  clip-path:polygon(50% 0,100% 30%,82% 100%,18% 100%,0 30%);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark::after{content:'';width:14px;height:14px;background:#07070f;clip-path:polygon(50% 0,100% 100%,0 100%)}
.logo-text{font-weight:800;letter-spacing:.18em;font-size:17px;color:#fff}
.logo-text span{color:var(--cyan)}
nav{display:flex;gap:28px;align-items:center}
nav a{
  color:var(--muted);text-decoration:none;font-size:13px;letter-spacing:.12em;
  text-transform:uppercase;transition:color .2s;position:relative;padding:4px 0;
}
nav a::after{content:'';position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--cyan);transition:width .25s}
nav a:hover{color:#fff}
nav a:hover::after{width:100%}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 26px;font-size:13px;font-weight:700;letter-spacing:.1em;
  text-transform:uppercase;text-decoration:none;cursor:pointer;border:none;
  clip-path:polygon(12px 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%,0 12px);
  transition:transform .2s,box-shadow .2s;
}
.btn-cyan{background:var(--cyan);color:#02121a}
.btn-cyan:hover{transform:translateY(-2px);box-shadow:0 0 24px rgba(0,240,255,.5)}
.btn-ghost{background:transparent;color:var(--cyan);border:1px solid var(--cyan);clip-path:none}
.btn-ghost:hover{background:rgba(0,240,255,.1)}
.menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--cyan);font-size:20px;padding:4px 12px;cursor:pointer}

/* ---- hero ---- */
.hero{position:relative;padding:96px 0 110px;overflow:hidden}
.beams{position:absolute;inset:0;pointer-events:none;opacity:.5}
.beam{position:absolute;top:-10%;width:180px;height:130%;filter:blur(38px);transform-origin:top center;animation:sway 9s ease-in-out infinite alternate}
.beam.b1{left:12%;background:linear-gradient(180deg,rgba(0,240,255,.5),transparent 75%);transform:rotate(14deg)}
.beam.b2{left:44%;background:linear-gradient(180deg,rgba(123,47,247,.55),transparent 75%);transform:rotate(-8deg);animation-delay:-3s}
.beam.b3{right:10%;background:linear-gradient(180deg,rgba(255,0,170,.45),transparent 75%);transform:rotate(10deg);animation-delay:-6s}
@keyframes sway{from{transform:rotate(6deg) translateX(-24px)}to{transform:rotate(-8deg) translateX(24px)}}
.hero-inner{position:relative;text-align:center;max-width:860px;margin:0 auto}
.tagline{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.3em;
  color:var(--cyan);border:1px solid var(--line);padding:7px 18px;margin-bottom:28px;
  background:rgba(0,240,255,.05);
}
.hero h1{
  font-size:clamp(40px,6.5vw,72px);font-weight:900;line-height:1.08;
  letter-spacing:.02em;text-transform:uppercase;
}
.hero h1 .glow-c{color:var(--cyan);text-shadow:0 0 30px rgba(0,240,255,.65)}
.hero h1 .glow-m{color:var(--magenta);text-shadow:0 0 30px rgba(255,0,170,.55)}
.hero p{margin:26px auto 40px;max-width:640px;color:var(--muted);font-size:17px}
.hero-actions{display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

/* ---- hero carousel (16:9) ---- */
.carousel{
  position:relative;overflow:hidden;background:var(--bg2);
  width:100%;max-width:none;margin:24px 0 0;
  aspect-ratio:16/9;max-height:82vh;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  box-shadow:0 20px 60px rgba(0,0,0,.45);
}
.slides{display:flex;height:100%;transition:transform .65s cubic-bezier(.77,0,.18,1)}
.slide{min-width:100%;height:100%;position:relative;display:flex;align-items:center;overflow:hidden}
.slide::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:44px 44px;
}
.slide-inner{position:relative;max-width:1200px;margin:0 auto;padding:0 24px;width:100%;display:flex;align-items:center;justify-content:space-between;gap:40px}
.slide-copy{max-width:560px}
.slide-copy .kicker{font-family:var(--mono);font-size:12px;letter-spacing:.28em;text-transform:uppercase;margin-bottom:16px;display:inline-block;padding:6px 16px;border:1px solid currentColor}
.slide-copy h3{font-size:clamp(30px,4.6vw,52px);font-weight:900;text-transform:uppercase;line-height:1.1;letter-spacing:.02em}
.slide-copy p{margin:18px 0 30px;font-size:15.5px;color:rgba(232,234,246,.78);max-width:440px}
.slide-visual{flex:none;width:320px;display:flex;justify-content:center}
.slide-visual svg{width:250px;height:345px;filter:drop-shadow(0 18px 40px rgba(0,0,0,.6))}
/* ---- 后台配了图片的轮播：图片铺满整屏 ---- */
.slide.has-img{background:#05060d}
.slide.has-img::before{display:none}                    /* 图片已铺满，隐掉网格 */
.slide-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.slide-scrim{                                           /* 左侧压暗，保证文字可读 */
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(4,4,12,.94) 0%,rgba(4,4,12,.82) 34%,rgba(4,4,12,.42) 62%,rgba(4,4,12,.08) 100%);
}
.slide.has-img .slide-copy h3{text-shadow:0 6px 30px rgba(0,0,0,.65)}
.slide.has-img .slide-copy p{color:rgba(255,255,255,.88);text-shadow:0 2px 14px rgba(0,0,0,.55)}
.slide.has-img .slide-copy .kicker{background:rgba(4,4,12,.45);backdrop-filter:blur(6px)}
/* 纯图海报模式：只显示图片，整块可点击（箭头/圆点仍在上层，z-index:5） */
.slide-poster-link{position:absolute;inset:0;z-index:3}
html[dir="rtl"] .slide-scrim{background:linear-gradient(270deg,rgba(4,4,12,.94) 0%,rgba(4,4,12,.82) 34%,rgba(4,4,12,.42) 62%,rgba(4,4,12,.08) 100%)}
.slide-1{background:linear-gradient(115deg,#04141c 0%,#0a2a3a 55%,#0c0c1a 100%)}
.slide-1 .kicker,.slide-1 h3{color:var(--cyan)}
.slide-1 .kicker{border-color:rgba(0,240,255,.4);background:rgba(0,240,255,.06)}
.slide-2{background:linear-gradient(115deg,#1c0414 0%,#3a0a2a 55%,#0c0c1a 100%)}
.slide-2 .kicker,.slide-2 h3{color:var(--magenta)}
.slide-2 .kicker{border-color:rgba(255,0,170,.4);background:rgba(255,0,170,.06)}
.slide-3{background:linear-gradient(115deg,#120418 0%,#280a3a 55%,#0c0c1a 100%)}
.slide-3 .kicker,.slide-3 h3{color:#b57bff}
.slide-3 .kicker{border-color:rgba(123,47,247,.45);background:rgba(123,47,247,.08)}
.slide-4{background:linear-gradient(115deg,#1a1204 0%,#3a2c0a 55%,#0c0c1a 100%)}
.slide-4 .kicker,.slide-4 h3{color:#ffc23d}
.slide-4 .kicker{border-color:rgba(255,178,61,.4);background:rgba(255,178,61,.07)}
.slide-glow{position:absolute;width:420px;height:420px;border-radius:50%;filter:blur(110px);opacity:.4;pointer-events:none}
.slide-glow.g1{background:var(--cyan);right:6%;top:10%}
.slide-glow.g2{background:var(--magenta);right:6%;top:10%}
.slide-glow.g3{background:var(--purple);right:6%;top:10%}
.slide-glow.g4{background:#ffb300;right:6%;top:10%}
/* arrows */
.car-arrow{
  position:absolute;top:50%;transform:translateY(-50%);z-index:5;
  width:46px;height:46px;display:flex;align-items:center;justify-content:center;
  background:rgba(7,7,15,.6);backdrop-filter:blur(6px);color:var(--cyan);
  border:1px solid var(--line);font-size:20px;cursor:pointer;transition:all .2s;user-select:none;
}
.car-arrow:hover{background:rgba(0,240,255,.15);box-shadow:0 0 18px rgba(0,240,255,.35)}
/* 满宽轮播下箭头贴住画面左右边缘 */
.car-arrow.prev{left:0;border-left:none}
.car-arrow.next{right:0;border-right:none}
/* dots */
.car-dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.car-dot{width:30px;height:4px;background:rgba(255,255,255,.22);border:none;cursor:pointer;transition:background .25s;padding:0}
.car-dot.on{background:var(--cyan);box-shadow:0 0 10px rgba(0,240,255,.7)}
.car-progress{position:absolute;top:0;left:0;height:3px;background:linear-gradient(90deg,var(--cyan),var(--magenta));width:0;z-index:5}
/* ---- stats ---- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(12,12,26,.6)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 12px;text-align:center;border-left:1px solid var(--line)}
.stat:first-child{border-left:none}
.stat b{display:block;font-size:32px;font-weight:900;color:var(--cyan);font-family:var(--mono)}
.stat span{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}

/* ---- sections ---- */
section{padding:90px 0}
.sec-head{margin-bottom:52px}
.sec-label{font-family:var(--mono);font-size:12px;letter-spacing:.28em;color:var(--magenta);text-transform:uppercase;margin-bottom:12px;display:block}
.sec-head h2{font-size:clamp(28px,4vw,42px);font-weight:900;text-transform:uppercase;letter-spacing:.03em}
.sec-head h2 em{font-style:normal;color:var(--cyan)}
.sec-head p{color:var(--muted);margin-top:14px;max-width:620px}

/* ---- categories ---- */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat{
  position:relative;padding:34px 28px;text-decoration:none;color:var(--text);
  background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(8px);
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px));
  transition:border-color .25s,transform .25s,box-shadow .25s;overflow:hidden;
}
.cat::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--cyan),var(--purple),var(--magenta));opacity:0;transition:opacity .25s}
.cat:hover{transform:translateY(-6px);border-color:rgba(0,240,255,.5);box-shadow:0 12px 40px rgba(0,240,255,.12)}
.cat:hover::before{opacity:1}
.cat-icon{font-size:34px;margin-bottom:16px;display:block}
.cat h3{font-size:17px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.cat p{font-size:13.5px;color:var(--muted)}
.cat-count{margin-top:18px;font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.1em}

/* ---- products ---- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.prod{
  background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(8px);
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
  overflow:hidden;transition:transform .25s,border-color .25s;display:flex;flex-direction:column;
}
.prod:hover{transform:translateY(-6px);border-color:rgba(255,0,170,.45)}
.prod-visual{position:relative;aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;overflow:hidden}
.pv-cyan{background:radial-gradient(circle at 50% 120%,rgba(0,240,255,.45),rgba(12,12,26,.9) 70%)}
.pv-magenta{background:radial-gradient(circle at 50% 120%,rgba(255,0,170,.4),rgba(12,12,26,.9) 70%)}
.pv-purple{background:radial-gradient(circle at 50% 120%,rgba(123,47,247,.45),rgba(12,12,26,.9) 70%)}
.pv-amber{background:radial-gradient(circle at 50% 120%,rgba(255,170,0,.35),rgba(12,12,26,.9) 70%)}
/* 产品实拍图：铺满整个方形画框（图片尺寸 = 画框尺寸） */
.prod-visual img{width:100%;height:100%;object-fit:cover;display:block}
/* 无实拍图时的自动生成 SVG 视觉图，同样按画框尺寸铺满（等比，不拉伸） */
.prod-visual svg{height:100%;width:auto;max-width:100%;filter:drop-shadow(0 6px 14px rgba(0,0,0,.6))}
.prod-badge{
  position:absolute;top:12px;left:12px;font-family:var(--mono);font-size:10px;
  letter-spacing:.14em;text-transform:uppercase;padding:4px 10px;
  background:var(--magenta);color:#fff;
}
.prod-badge.alt{background:var(--cyan);color:#02121a}
.prod-body{padding:20px;display:flex;flex-direction:column;flex:1}
.prod-body h3{font-size:14.5px;font-weight:700;margin-bottom:6px;line-height:1.4}
.prod-spec{font-family:var(--mono);font-size:11.5px;color:var(--muted);margin-bottom:16px}
.prod-cta{
  margin-top:auto;display:flex;justify-content:space-between;align-items:center;
  padding-top:14px;border-top:1px solid var(--line);
}
.prod-cta .moq{font-family:var(--mono);font-size:11px;color:var(--muted)}
.prod-cta a{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);text-decoration:none}
.prod-cta a:hover{color:var(--magenta)}

/* ---- why us ---- */
.why{background:linear-gradient(180deg,rgba(123,47,247,.06),transparent)}
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.why-card{padding:30px 26px;border:1px solid var(--line);background:var(--panel);backdrop-filter:blur(8px)}
.why-card .num{font-family:var(--mono);font-size:13px;color:var(--magenta);letter-spacing:.2em;margin-bottom:14px;display:block}
.why-card h3{font-size:15.5px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px}
.why-card p{font-size:13.5px;color:var(--muted)}

/* ---- oem band ---- */
.oem-band{
  border:1px solid var(--line);background:
    linear-gradient(120deg,rgba(0,240,255,.08),rgba(123,47,247,.12),rgba(255,0,170,.08));
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  clip-path:polygon(0 0,calc(100% - 30px) 0,100% 30px,100% 100%,30px 100%,0 calc(100% - 30px));
}
.oem-band h2{font-size:clamp(22px,3vw,32px);font-weight:900;text-transform:uppercase}
.oem-band h2 em{font-style:normal;color:var(--cyan)}
.oem-band p{color:var(--muted);margin-top:10px;max-width:520px;font-size:14.5px}

/* ---- inquiry form ---- */
.inquiry-wrap{display:grid;grid-template-columns:1fr 1.3fr;gap:44px;align-items:start}
.inquiry-info h2{font-size:clamp(26px,3.6vw,38px);font-weight:900;text-transform:uppercase;margin-bottom:16px}
.inquiry-info p{color:var(--muted);margin-bottom:28px;font-size:15px}
.info-row{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}
.info-row .ic{
  width:40px;height:40px;flex:none;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--cyan);font-size:17px;
  background:rgba(0,240,255,.05);
}
.info-row b{display:block;font-size:13px;text-transform:uppercase;letter-spacing:.08em}
.info-row span{font-size:13.5px;color:var(--muted)}
form{background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(8px);padding:36px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-family:var(--mono)}
.field input,.field select,.field textarea{
  background:rgba(7,7,15,.7);border:1px solid var(--line);color:var(--text);
  padding:12px 14px;font-size:14px;font-family:inherit;outline:none;transition:border-color .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 2px rgba(0,240,255,.15)}
.field textarea{resize:vertical;min-height:110px}
.form-note{font-size:11.5px;color:var(--muted);margin-top:14px;font-family:var(--mono)}

/* ---- footer ---- */
footer{border-top:1px solid var(--line);background:rgba(7,7,15,.9);padding:60px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;margin-bottom:44px}
.foot-grid p{color:var(--muted);font-size:13.5px;margin-top:14px;max-width:300px}
.foot-grid h4{font-size:13px;text-transform:uppercase;letter-spacing:.14em;margin-bottom:16px;color:#fff}
.foot-grid a{display:block;color:var(--muted);text-decoration:none;font-size:13.5px;margin-bottom:10px;transition:color .2s}
.foot-grid a:hover{color:var(--cyan)}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--muted);font-family:var(--mono)}

/* ---- reveal ---- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.on{opacity:1;transform:none}

/* ---- responsive ---- */
@media (max-width:960px){
  .carousel{margin-top:16px}
  .slide-visual{display:none}
  .slide-copy{max-width:none}
  .cats{grid-template-columns:repeat(2,1fr)}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:none}
  .inquiry-wrap{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  /* 竖屏下 16:9 太扁，改用自适应最小高度 */
  .carousel{aspect-ratio:auto;margin-top:12px}
  .slide{min-height:330px;height:auto;padding:44px 0}
  .slide-copy h3{font-size:clamp(26px,8vw,34px)}
  .slide-copy p{margin:12px 0 22px;font-size:14px}
  .car-dots{bottom:14px}
  .car-arrow{width:38px;height:38px;font-size:16px}
  nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;
      background:rgba(7,7,15,.97);padding:24px;border-bottom:1px solid var(--line);gap:18px}
  nav.open{display:flex}
  .menu-toggle{display:block}
  .nav-cta{display:none}
  .cats,.prod-grid,.why-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .oem-band{padding:36px 24px}
  form{padding:24px}
}

/* ==================== SUB-PAGE COMPONENTS ==================== */
/* ---- inner page header ---- */
.page-hero{
  position:relative;padding:66px 0 54px;overflow:hidden;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(123,47,247,.10),transparent);
}
.page-hero .beams{opacity:.3}
.page-hero-inner{position:relative}
.breadcrumb{display:flex;gap:10px;align-items:center;font-family:var(--mono);font-size:12px;color:var(--muted);margin-bottom:18px;letter-spacing:.1em}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{opacity:.45}
.breadcrumb .cur{color:var(--cyan)}
.page-hero h1{font-size:clamp(30px,4.8vw,52px);font-weight:900;text-transform:uppercase;line-height:1.1;letter-spacing:.02em}
.page-hero h1 em{font-style:normal;color:var(--cyan)}
.page-hero p{color:var(--muted);margin-top:16px;max-width:660px;font-size:16px}

/* ---- filter bar ---- */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px}
.filter-btn{
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  padding:9px 18px;background:transparent;border:1px solid var(--line);color:var(--muted);
  cursor:pointer;transition:all .2s;
}
.filter-btn:hover{color:#fff;border-color:rgba(0,240,255,.45)}
.filter-btn.on{background:rgba(0,240,255,.12);border-color:var(--cyan);color:var(--cyan)}

/* ---- shop layout: 左侧搜索/分类 + 右侧产品 ---- */
.shop-layout{display:grid;grid-template-columns:250px 1fr;gap:34px;align-items:start}
.shop-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-block{
  border:1px solid var(--line);background:rgba(12,12,26,.55);backdrop-filter:blur(6px);
  padding:18px 16px;clip-path:polygon(12px 0,100% 0,100% 100%,0 100%,0 12px);
}
.side-title{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
/* 搜索框 */
.side-search{position:relative}
.side-search input{
  width:100%;padding:11px 34px 11px 12px;box-sizing:border-box;
  background:rgba(7,7,15,.75);border:1px solid var(--line);color:var(--fg);
  font-family:var(--mono);font-size:13px;letter-spacing:.04em;outline:none;transition:all .2s;
}
.side-search input::placeholder{color:var(--muted);opacity:.7;letter-spacing:.04em}
.side-search input:focus{border-color:var(--cyan);box-shadow:0 0 16px rgba(0,240,255,.22)}
.side-search input::-webkit-search-cancel-button{display:none}
.side-search-x{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;line-height:1;background:transparent;border:none;cursor:pointer;
  color:var(--muted);font-size:18px;transition:color .2s;
}
.side-search-x:hover{color:var(--cyan)}
/* 分类清单（竖排） */
.side-cats{display:flex;flex-direction:column;gap:2px}
.side-cats .filter-btn{
  display:flex;align-items:center;gap:10px;width:100%;text-align:left;
  padding:10px 10px;background:transparent;border:none;border-left:2px solid transparent;
  color:var(--muted);cursor:pointer;transition:all .2s;
}
.side-cats .filter-btn span{flex:1}
.side-cats .filter-btn b{
  font-family:var(--mono);font-size:11px;font-weight:400;color:var(--muted);
  border:1px solid var(--line);padding:1px 7px;transition:all .2s;
}
.side-cats .filter-btn:hover{color:#fff;border-left-color:rgba(0,240,255,.5);background:rgba(0,240,255,.05)}
.side-cats .filter-btn.on{color:var(--cyan);border-left-color:var(--cyan);background:rgba(0,240,255,.08)}
.side-cats .filter-btn.on b{color:var(--cyan);border-color:rgba(0,240,255,.5)}
/* 结果计数条 */
.shop-bar{display:flex;align-items:center;justify-content:flex-end;margin-bottom:16px}
.shop-count{font-size:11.5px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}

/* ---- 3-col product grid + pager ---- */
.prod-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pager{display:flex;gap:8px;justify-content:center;margin-top:52px;flex-wrap:wrap}
.pager button{
  min-width:40px;height:40px;padding:0 12px;background:transparent;border:1px solid var(--line);
  color:var(--muted);cursor:pointer;font-family:var(--mono);font-size:13px;transition:all .2s;
}
.pager button:hover{color:#fff;border-color:rgba(0,240,255,.4)}
.pager button.on{background:var(--cyan);border-color:var(--cyan);color:#02121a;font-weight:700}
.pager button:disabled{opacity:.35;cursor:not-allowed}
.empty-tip{text-align:center;color:var(--muted);font-family:var(--mono);font-size:13px;padding:40px 0}

/* ---- split layout ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.rev .split-media{order:2}
.split h2{font-size:clamp(23px,3.2vw,34px);font-weight:900;text-transform:uppercase;margin-bottom:16px;letter-spacing:.02em}
.split h2 em{font-style:normal;color:var(--cyan)}
.split p{color:var(--muted);margin-bottom:16px;font-size:15px}
.split-media{
  position:relative;border:1px solid var(--line);background:var(--panel);
  aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,26px 100%,0 calc(100% - 26px));
}
.split-media::after{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(rgba(0,240,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,240,255,.05) 1px,transparent 1px);
  background-size:38px 38px;
}
.split-media .m-glow{position:absolute;width:70%;height:70%;border-radius:50%;filter:blur(90px);opacity:.35}
.split-media .m-cyan{background:var(--cyan)}
.split-media .m-magenta{background:var(--magenta)}
.split-media .m-purple{background:var(--purple)}
.split-media svg{position:relative;width:52%;height:52%;filter:drop-shadow(0 14px 30px rgba(0,0,0,.55))}
.media-cap{
  position:absolute;left:20px;bottom:16px;z-index:2;font-family:var(--mono);font-size:11px;
  letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);
}

/* ---- check list ---- */
.check-list{list-style:none;margin-top:14px}
.check-list li{position:relative;padding-left:26px;margin-bottom:12px;color:var(--muted);font-size:14.5px}
.check-list li::before{content:'▸';position:absolute;left:0;top:0;color:var(--cyan);font-weight:700}
.check-list li b{color:var(--text)}

/* ---- timeline ---- */
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:'';position:absolute;left:8px;top:8px;bottom:8px;width:1px;
  background:linear-gradient(180deg,var(--cyan),var(--purple),transparent);
}
.tl-item{position:relative;margin-bottom:34px}
.tl-item::before{
  content:'';position:absolute;left:-30px;top:7px;width:10px;height:10px;
  background:var(--cyan);box-shadow:0 0 12px rgba(0,240,255,.8);transform:rotate(45deg);
}
.tl-item b{display:block;font-family:var(--mono);font-size:12.5px;color:var(--magenta);letter-spacing:.16em;margin-bottom:6px}
.tl-item h3{font-size:16px;text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}
.tl-item p{color:var(--muted);font-size:14px}

/* ---- cert / stat tiles ---- */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cert{
  padding:26px 22px;border:1px solid var(--line);background:var(--panel);text-align:center;
  transition:border-color .25s,transform .25s;
}
.cert:hover{border-color:rgba(0,240,255,.45);transform:translateY(-4px)}
.cert b{display:block;font-family:var(--mono);font-size:19px;color:var(--cyan);margin-bottom:8px}
.cert span{font-size:12.5px;color:var(--muted)}

/* ---- process steps ---- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;padding:30px 24px;border:1px solid var(--line);background:var(--panel);
  clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px));
}
.step::before{
  counter-increment:step;content:'0' counter(step);display:block;margin-bottom:12px;
  font-family:var(--mono);font-size:26px;font-weight:700;color:rgba(0,240,255,.4);
}
.step h3{font-size:15px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--muted)}

/* ---- news cards ---- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;text-decoration:none;color:var(--text);
  border:1px solid var(--line);background:var(--panel);transition:transform .25s,border-color .25s;
  clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
}
.news-card:hover{transform:translateY(-6px);border-color:rgba(0,240,255,.45)}
.news-thumb{
  height:158px;display:flex;align-items:center;justify-content:center;font-size:38px;
  border-bottom:1px solid var(--line);
}
.th-cyan{background:radial-gradient(circle at 50% 120%,rgba(0,240,255,.35),rgba(12,12,26,.9) 70%)}
.th-magenta{background:radial-gradient(circle at 50% 120%,rgba(255,0,170,.32),rgba(12,12,26,.9) 70%)}
.th-purple{background:radial-gradient(circle at 50% 120%,rgba(123,47,247,.35),rgba(12,12,26,.9) 70%)}
.news-body{padding:22px;flex:1;display:flex;flex-direction:column}
.news-meta{font-family:var(--mono);font-size:11px;color:var(--magenta);letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px}
.news-body h3{font-size:15.5px;line-height:1.45;margin-bottom:10px}
.news-body p{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.news-more{margin-top:auto;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan)}
.news-card:hover .news-more{color:var(--magenta)}

/* ---- contact extras ---- */
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.contact-card{padding:30px 26px;border:1px solid var(--line);background:var(--panel);clip-path:polygon(0 0,calc(100% - 20px) 0,100% 20px,100% 100%,20px 100%,0 calc(100% - 20px))}
.contact-card .ic{display:flex;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);background:rgba(0,240,255,.05);color:var(--cyan);font-size:18px;margin-bottom:16px}
.contact-card h3{font-size:14px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px}
.contact-card p{font-size:14px;color:var(--muted)}
.contact-card a{color:var(--cyan);text-decoration:none}
.map-box{
  margin-top:24px;height:300px;border:1px solid var(--line);
  background:
    linear-gradient(rgba(0,240,255,.06) 1px,transparent 1px) 0 0/40px 40px,
    linear-gradient(90deg,rgba(0,240,255,.06) 1px,transparent 1px) 0 0/40px 40px,
    radial-gradient(circle at 50% 50%,rgba(0,240,255,.16),transparent 65%),
    var(--bg2);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--muted);font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;
}
.map-box .pin{width:14px;height:14px;background:var(--cyan);box-shadow:0 0 22px var(--cyan);transform:rotate(45deg)}

/* ---- spec table ---- */
.spec-table{width:100%;border-collapse:collapse;font-size:14px}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:12px 16px;text-align:left}
.spec-table th{
  font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.1em;
  color:var(--cyan);background:rgba(0,240,255,.05);width:34%;font-weight:400;
}
.spec-table td{color:var(--muted)}

/* ---- faq ---- */
.faq-item{border:1px solid var(--line);background:var(--panel);margin-bottom:14px;overflow:hidden}
.faq-q{
  width:100%;text-align:left;background:none;border:none;color:var(--text);cursor:pointer;
  padding:20px 24px;font-size:14.5px;font-weight:600;display:flex;justify-content:space-between;gap:16px;
  font-family:inherit;
}
.faq-q .sign{color:var(--cyan);font-family:var(--mono);flex:none}
.faq-a{display:none;padding:0 24px 22px;color:var(--muted);font-size:14px}
.faq-item.open .faq-a{display:block}
.faq-item.open .sign{transform:rotate(45deg);display:inline-block}

/* ---- nav active state ---- */
nav a.active{color:#fff}
nav a.active::after{width:100%}

/* ---- sub-page responsive ---- */
@media (max-width:960px){
  .prod-grid-3{grid-template-columns:repeat(2,1fr)}
  /* 侧栏改为顶部通栏，分类恢复横向按钮 */
  .shop-layout{grid-template-columns:1fr;gap:22px}
  .shop-side{position:static;gap:16px}
  .side-cats{flex-direction:row;flex-wrap:wrap;gap:8px}
  .side-cats .filter-btn{width:auto;border:1px solid var(--line);padding:8px 12px}
  .side-cats .filter-btn:hover{border-left-color:var(--line)}
  .side-cats .filter-btn.on{border-color:var(--cyan)}
  .shop-bar{margin-bottom:14px}
  .split{grid-template-columns:1fr;gap:32px}
  .split.rev .split-media{order:0}
  .cert-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .contact-cards{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  .prod-grid-3,.cert-grid,.steps,.news-grid,.contact-cards{grid-template-columns:1fr}
  .page-hero{padding:48px 0 38px}
  .split-media{aspect-ratio:16/10}
}

/* ==================== PRODUCT DETAIL PAGE ==================== */
.pd-wrap{display:grid;grid-template-columns:1.02fr 1fr;gap:48px;align-items:start}
.pd-main{
  position:relative;border:1px solid var(--line);background:var(--bg2);aspect-ratio:1/1;
  display:flex;align-items:center;justify-content:center;overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,26px 100%,0 calc(100% - 26px));
}
.pd-main::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(0,240,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,240,255,.05) 1px,transparent 1px);
  background-size:38px 38px;
}
.pd-main .g-glow{position:absolute;width:70%;height:70%;border-radius:50%;filter:blur(90px);opacity:.4}
.pd-main svg{position:relative;width:70%;height:70%;filter:drop-shadow(0 16px 34px rgba(0,0,0,.6))}
/* 详情主图：实拍图铺满画框 */
.pd-main img{position:relative;width:100%;height:100%;object-fit:cover;display:block}
.pd-view-cap{position:absolute;left:18px;bottom:14px;z-index:2;font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan)}
.pd-badge{position:absolute;top:14px;left:14px;z-index:2;font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;padding:5px 11px;background:var(--magenta);color:#fff}
.pd-badge.alt{background:var(--cyan);color:#02121a}
.pd-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px}
.pd-thumb{
  position:relative;aspect-ratio:1/1;border:1px solid var(--line);background:var(--bg2);
  display:flex;align-items:center;justify-content:center;cursor:pointer;overflow:hidden;
  transition:border-color .2s,background .2s;
}
.pd-thumb svg{width:74%;height:74%}
.pd-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.pd-thumb:hover{border-color:rgba(0,240,255,.5)}
.pd-thumb.on{border-color:var(--cyan);background:rgba(0,240,255,.07);box-shadow:0 0 16px rgba(0,240,255,.18)}
/* 详情页产品视频：后台配了 video 链接时出现第 5 个视图位 */
.pd-thumbs.has-video{grid-template-columns:repeat(5,1fr)}
.pd-video{position:relative;z-index:1;width:100%;height:100%;display:flex;padding:22px;box-sizing:border-box}
.pd-video iframe,.pd-video video{width:100%;height:100%;border:0;background:#000;border-radius:10px;box-shadow:0 0 34px rgba(0,240,255,.14)}
.pd-thumb .t-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(4,4,12,.42);transition:background .2s}
.pd-thumb .t-play svg{width:34%;height:34%;fill:#fff;filter:drop-shadow(0 0 10px rgba(0,240,255,.8))}
.pd-thumb:hover .t-play{background:rgba(4,4,12,.18)}
/* 详情页独立视频区块：后台配了 p.video 才显示 */
.pd-video-sec{display:none;padding:0 0 80px}
.pd-video-sec.on{display:block}
.pd-video-stage{
  position:relative;border:1px solid var(--line);background:var(--bg2);aspect-ratio:16/9;overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 26px) 0,100% 26px,100% 100%,26px 100%,0 calc(100% - 26px));
}
.pd-video-stage::after{
  content:'';position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(0,240,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(0,240,255,.05) 1px,transparent 1px);
  background-size:38px 38px;
}
.pd-video-stage .pd-video{padding:18px}
.pd-video-stage iframe,.pd-video-stage video{border-radius:6px}
.pd-info h1{font-size:clamp(23px,3.2vw,34px);font-weight:900;text-transform:uppercase;line-height:1.15;letter-spacing:.02em;margin-bottom:10px}
.pd-model{font-family:var(--mono);font-size:13px;color:var(--cyan);letter-spacing:.16em;margin-bottom:14px;text-transform:uppercase}
.pd-short{color:var(--muted);font-size:15px;margin-bottom:20px}
.pd-highlights{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:22px}
.pd-hl{border:1px solid var(--line);background:var(--panel);padding:12px 14px;font-size:13px;color:var(--muted)}
.pd-hl b{display:block;color:var(--cyan);font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;margin-bottom:4px}
.pd-meta{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;margin-bottom:22px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pd-meta span{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.pd-meta b{font-size:14.5px;font-weight:600}
.pd-actions{display:flex;gap:12px;flex-wrap:wrap}

/* tabs */
.pd-tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:34px;flex-wrap:wrap}
.pd-tab{
  background:none;border:none;border-bottom:2px solid transparent;color:var(--muted);cursor:pointer;
  padding:14px 18px;font-size:13px;letter-spacing:.1em;text-transform:uppercase;font-family:inherit;transition:all .2s;
}
.pd-tab:hover{color:#fff}
.pd-tab.on{color:var(--cyan);border-bottom-color:var(--cyan)}
.pd-panel{display:none}
.pd-panel.on{display:block}
.pd-cols{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:start}
.pd-cols h3{font-size:16px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:18px}
.pd-cols p{color:var(--muted);font-size:14.5px;margin-bottom:14px}
.pd-box-list{list-style:none}
.pd-box-list li{
  display:flex;justify-content:space-between;gap:14px;border:1px solid var(--line);
  background:var(--panel);padding:13px 18px;margin-bottom:10px;font-size:14px;color:var(--muted);
}
.pd-box-list li b{color:var(--cyan);font-family:var(--mono);font-size:13px;font-weight:400}
.dl-row{display:flex;justify-content:space-between;align-items:center;gap:16px;border:1px solid var(--line);background:var(--panel);padding:16px 20px;margin-bottom:12px}
.dl-row span{font-size:14px;color:var(--muted)}
.dl-row a{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);text-decoration:none}
.dl-row a:hover{color:var(--magenta)}

/* related */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

@media (max-width:960px){
  .pd-wrap{grid-template-columns:1fr;gap:32px}
  .pd-cols{grid-template-columns:1fr;gap:28px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .pd-highlights,.pd-meta{grid-template-columns:1fr}
  .pd-thumbs{grid-template-columns:repeat(4,1fr);gap:8px}
  .pd-thumbs.has-video{grid-template-columns:repeat(5,1fr)}
  .pd-video{padding:10px}
  .pd-video-stage .pd-video{padding:8px}
  .pd-video-sec{padding:0 0 56px}
  .pd-actions .btn{width:100%;justify-content:center}
  .related-grid{grid-template-columns:1fr}
}

.prod[data-id]{cursor:pointer}

/* ============================================================
   i18n — language switcher
   ============================================================ */
.lang-switch{position:relative;flex:none;margin-left:18px}
.lang-btn{
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(135deg,rgba(0,240,255,.15),rgba(123,47,247,.12));
  border:1px solid rgba(0,240,255,.42);color:var(--cyan);
  transition:border-color .2s,background .2s,box-shadow .2s,transform .2s;
}
.lang-btn:hover,.lang-switch.open .lang-btn{
  border-color:var(--cyan);box-shadow:0 0 18px rgba(0,240,255,.32);transform:translateY(-1px);
}
.lang-switch.open .lang-btn{background:rgba(0,240,255,.18)}

/* 国旗图标：统一 3:2 圆角画框，内部 SVG 铺满 */
.lg-ico{width:24px;height:16px;border-radius:3px;overflow:hidden;flex:none;
  box-shadow:0 0 0 1px rgba(255,255,255,.24),0 1px 3px rgba(0,0,0,.45);
  transition:box-shadow .2s}
.lg-ico svg,.lg-flag svg{width:100%;height:100%;display:block}
.lang-btn:hover .lg-ico,.lang-switch.open .lg-ico{
  box-shadow:0 0 0 1px rgba(255,255,255,.44),0 0 12px rgba(0,240,255,.36)}

.lang-menu{
  position:absolute;top:calc(100% + 10px);right:0;z-index:90;min-width:228px;
  max-height:min(74vh,560px);overflow-y:auto;overscroll-behavior:contain;
  list-style:none;margin:0;padding:7px;
  background:rgba(9,10,22,.97);border:1px solid rgba(0,240,255,.22);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:0 22px 48px rgba(0,0,0,.65);
  clip-path:polygon(0 0,calc(100% - 14px) 0,100% 14px,100% 100%,14px 100%,0 calc(100% - 14px));
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s,transform .2s,visibility .2s;
}
.lang-switch.open .lang-menu{opacity:1;visibility:visible;transform:none}
.lang-menu button{
  display:flex;align-items:center;gap:12px;width:100%;background:none;border:none;cursor:pointer;
  font-family:inherit;color:var(--muted);padding:8px 10px;text-align:left;
  transition:background .15s,color .15s;
}
.lang-menu button:hover{background:rgba(0,240,255,.09);color:#fff}
.lg-flag{width:22px;height:15px;border-radius:3px;overflow:hidden;flex:none;
  box-shadow:0 0 0 1px rgba(255,255,255,.2)}
.lang-menu button:hover .lg-flag{box-shadow:0 0 0 1px rgba(255,255,255,.38)}
.lang-menu button.on .lg-flag{box-shadow:0 0 0 1px var(--cyan),0 0 10px rgba(0,240,255,.34)}
.lg-txt{display:flex;flex-direction:column;gap:1px;min-width:0}
.lg-main{font-size:13.5px;font-weight:600;letter-spacing:.02em;color:inherit;white-space:nowrap}
.lg-sub{font-size:11px;opacity:.62;white-space:nowrap}
.lg-check{width:12px;height:10px;margin-left:auto;flex:none;fill:none;stroke:var(--cyan);stroke-width:1.8;opacity:0;transition:opacity .15s}
.lang-menu button.on{color:#fff}
.lang-menu button.on .lg-main{color:var(--cyan)}
.lang-menu button.on .lg-check{opacity:1}
.lang-menu::-webkit-scrollbar{width:6px}
.lang-menu::-webkit-scrollbar-thumb{background:rgba(0,240,255,.3);border-radius:3px}
.lang-menu::-webkit-scrollbar-track{background:transparent}

/* ---- language-aware typography ---- */
html[lang="ar"]{--mono:'Tahoma','Segoe UI',sans-serif}
html[lang="hi"]{--mono:'Nirmala UI','Segoe UI',sans-serif}
html[lang="ar"] body,html[lang="ar"] button,html[lang="ar"] input,html[lang="ar"] select,html[lang="ar"] textarea{
  font-family:'Segoe UI','Tahoma','Noto Naskh Arabic',sans-serif;
}
html[lang="hi"] body,html[lang="hi"] button,html[lang="hi"] input,html[lang="hi"] select,html[lang="hi"] textarea{
  font-family:'Segoe UI','Nirmala UI','Noto Sans Devanagari',sans-serif;
}
html[lang="ru"] body,html[lang="ru"] button,html[lang="ru"] input,html[lang="ru"] select,html[lang="ru"] textarea{
  font-family:'Segoe UI','Tahoma',sans-serif;
}
html[lang="zh"] body,html[lang="zh"] button,html[lang="zh"] input,html[lang="zh"] select,html[lang="zh"] textarea{
  font-family:'PingFang SC','Microsoft YaHei','Hiragino Sans GB','Source Han Sans SC','Noto Sans SC',sans-serif;
}
html[lang="zh"] .kicker,html[lang="zh"] .tagline,html[lang="zh"] .mono,html[lang="zh"] .chip b{letter-spacing:0}
html[lang="zh"] h1,html[lang="zh"] h2,html[lang="zh"] h3{letter-spacing:.01em}
html[lang="ko"] body,html[lang="ko"] button,html[lang="ko"] input,html[lang="ko"] select,html[lang="ko"] textarea{
  font-family:'Malgun Gothic','Apple SD Gothic Neo','Noto Sans KR',sans-serif;
}
html[lang="ko"] h1,html[lang="ko"] h2,html[lang="ko"] h3{letter-spacing:0}
html[lang="vi"] body,html[lang="vi"] button,html[lang="vi"] input,html[lang="vi"] select,html[lang="vi"] textarea{
  font-family:'Segoe UI','Tahoma',sans-serif;
}

/* ============================================================
   RTL (Arabic)
   ============================================================ */
html[dir="rtl"] .lang-switch{margin-left:0;margin-right:18px}
html[dir="rtl"] .lang-menu{right:auto;left:0}
html[dir="rtl"] .lang-menu button{text-align:right}
html[dir="rtl"] .lg-check{margin-left:0;margin-right:auto}
html[dir="rtl"] nav a::after{left:auto;right:0}
html[dir="rtl"] .logo-text{letter-spacing:0}
html[dir="rtl"] .hero h1{letter-spacing:0}
html[dir="rtl"] h1,html[dir="rtl"] h2,html[dir="rtl"] h3{letter-spacing:0}
html[dir="rtl"] .btn,html[dir="rtl"] .tagline,html[dir="rtl"] .kicker{letter-spacing:0}

/* flip latin arrows when the layout runs right-to-left */
html[dir="rtl"] .btn-flip svg,html[dir="rtl"] .btn-flip{transform:scaleX(-1)}

@media (max-width:960px){
  .lang-switch{margin-left:12px}
  html[dir="rtl"] .lang-switch{margin-right:12px}
}
@media (max-width:620px){
  .lang-switch{margin-left:8px}
  html[dir="rtl"] .lang-switch{margin-right:8px}
  .lang-btn{width:36px;height:36px;border-radius:10px}
  .lg-ico{width:21px;height:14px}
  .lang-menu{min-width:196px}
  .lg-flag{width:19px;height:13px}
}

/* ---- RTL layout fixes (Arabic) ---- */
html[dir="rtl"] .stat{border-left:none;border-right:1px solid var(--line)}
html[dir="rtl"] .stat:first-child{border-right:none}
html[dir="rtl"] .check-list li{padding-left:0;padding-right:26px}
html[dir="rtl"] .check-list li::before{left:auto;right:0}
html[dir="rtl"] .timeline{padding-left:0;padding-right:34px}
html[dir="rtl"] .timeline::before{left:auto;right:8px}
html[dir="rtl"] .tl-item::before{left:auto;right:-30px}
html[dir="rtl"] .spec-table th,html[dir="rtl"] .spec-table td{text-align:right}
html[dir="rtl"] .faq-q{text-align:right}
html[dir="rtl"] .prod-badge{left:auto;right:12px}
html[dir="rtl"] .pd-badge{left:auto;right:14px}
html[dir="rtl"] .pd-view-cap{left:auto;right:18px}
/* keep the carousel on LTR slide geometry, but let each slide's copy read right-to-left */
html[dir="rtl"] .carousel{direction:ltr}
html[dir="rtl"] .slide{direction:rtl}
html[dir="rtl"] .pd-main{direction:rtl}
html[dir="rtl"] .dl-row,html[dir="rtl"] .pd-box-list li,html[dir="rtl"] .pd-meta{direction:rtl}
@media (max-width:960px){
  html[dir="rtl"] .stat:nth-child(3){border-right:none}
}

/* ---- nav dropdown (Products hover) ---- */
.nav-drop{position:relative;display:inline-flex;align-items:center}
.nav-drop > a{display:inline-flex;align-items:center;gap:5px}
.drop-caret{
  display:inline-block;width:0;height:0;margin-top:1px;
  border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;
  opacity:.55;transition:transform .22s;
}
.nav-drop:hover .drop-caret{transform:rotate(180deg);opacity:1;color:var(--cyan)}
.nav-drop-menu{
  position:absolute;top:calc(100% + 12px);left:50%;transform:translate(-50%,10px);
  min-width:250px;padding:8px;display:flex;flex-direction:column;gap:2px;
  background:rgba(10,12,22,.96);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  clip-path:polygon(14px 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%,0 14px);
  box-shadow:0 18px 46px rgba(0,0,0,.55),0 0 0 1px rgba(0,240,255,.06);
  opacity:0;visibility:hidden;transition:opacity .22s,transform .22s,visibility .22s;z-index:80;
}
/* 悬停桥接区，防止移过缝隙时菜单消失 */
.nav-drop-menu::before{content:'';position:absolute;top:-14px;left:0;right:0;height:14px}
.nav-drop:hover .nav-drop-menu,
.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:translate(-50%,0)}
.nav-drop-menu a{
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  padding:10px 14px;color:var(--muted);font-size:12px;letter-spacing:.08em;
  text-transform:uppercase;text-decoration:none;transition:background .15s,color .15s;white-space:nowrap;
}
.nav-drop-menu a::after{display:none}
.nav-drop-menu a:hover{color:#fff;background:rgba(0,240,255,.08);box-shadow:inset 2px 0 0 var(--cyan)}
.nav-drop-menu .dm-count{
  font-size:10px;letter-spacing:.05em;color:var(--cyan);
  background:rgba(0,240,255,.1);padding:2px 8px;
  clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
html[dir="rtl"] .nav-drop-menu a:hover{box-shadow:inset -2px 0 0 var(--cyan)}
@media (max-width:860px){
  /* 移动端导航为纵向面板，隐藏下拉，Products 直接跳列表页 */
  .nav-drop{display:inline}
  .drop-caret,.nav-drop-menu{display:none}
}

/* ============================================================
   v4 — 结构补全：首屏实力标签 / 认证条 / 分类实拍图 / 应用场景 / 首页动态 / 悬浮询盘
   ============================================================ */

/* ---- hero 实力标签 ---- */
.hero-chips{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:30px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;font-size:12px;letter-spacing:.06em;color:var(--muted);
  background:rgba(12,12,26,.55);border:1px solid var(--line);backdrop-filter:blur(8px);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.chip b{color:var(--cyan);font-family:var(--mono);font-size:13px;letter-spacing:0}

/* ---- 认证条 ---- */
.cert-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(10,10,20,.6);margin-top:26px}
.cert-inner{display:flex;align-items:center;gap:26px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap}
.cert-label{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--dim-2)}
.cert-list{display:flex;gap:12px;flex-wrap:wrap;margin-left:auto}
.cert-item{
  display:inline-flex;align-items:center;gap:9px;font-size:12px;letter-spacing:.05em;color:var(--muted);
  padding:7px 14px;border:1px solid var(--line);background:rgba(255,255,255,.015);
}
.cert-item i{
  font-style:normal;font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.06em;
  color:#02121a;background:var(--cyan);padding:3px 6px;
}
.cert-item:nth-child(2) i{background:#b57bff}
.cert-item:nth-child(3) i{background:#ff00aa;color:#fff}
.cert-item:nth-child(4) i{background:#8be9c0}
.cert-item:nth-child(5) i{background:#ffb300}

/* ---- 分类卡：实拍图封面 ---- */
.cat.has-img{padding:0;display:flex;flex-direction:column}
.cat-media{position:relative;width:100%;aspect-ratio:16/10;overflow:hidden;background:#0a0a16;flex:none}
.cat-media img{width:100%;height:100%;object-fit:cover;opacity:.9;transition:transform .4s ease,opacity .3s}
.cat:hover .cat-media img{transform:scale(1.05);opacity:1}
.cat-media-icon{display:flex;align-items:center;justify-content:center;font-size:56px;background:radial-gradient(circle at 50% 120%,rgba(0,240,255,.22),rgba(12,12,26,.9) 70%)}
.cat-body{padding:24px 26px 28px;display:flex;flex-direction:column;flex:1}
.cat-body h3{margin-bottom:8px}
.cat-body .cat-count{margin-top:auto;padding-top:18px}

/* ---- 应用场景 ---- */
#scenarios{background:linear-gradient(180deg,rgba(0,240,255,.04),transparent 60%)}
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.scene{
  background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(8px);overflow:hidden;
  clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,22px 100%,0 calc(100% - 22px));
  transition:transform .25s,border-color .25s,box-shadow .25s;
}
.scene:hover{transform:translateY(-6px);box-shadow:0 14px 44px rgba(0,0,0,.5)}
.scene:hover{border-color:rgba(0,240,255,.4)}
.scene-art{position:relative;aspect-ratio:16/9;background:#07070f;border-bottom:1px solid var(--line)}
.scene-art svg{position:absolute;inset:0;width:100%;height:100%}
.scene-body{padding:22px 26px 26px}
.scene-body h3{font-size:16px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px}
.scene-body p{font-size:13.5px;color:var(--muted)}
.scene-link{display:inline-block;margin-top:14px;font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--cyan);text-decoration:none}
.scene-link:hover{color:var(--magenta)}

/* ---- 首页最新动态 ---- */
.news-more-wrap{text-align:center;margin-top:36px}

/* ---- 表单信任条 / WhatsApp 按钮 ---- */
.wa-btn{margin-top:22px;justify-content:center}
.form-trust{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;justify-content:center}
.form-trust span{
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--cyan);
  background:rgba(0,240,255,.07);border:1px solid rgba(0,240,255,.22);padding:5px 11px;
}

/* ---- 询盘提交成功态（inquiry.js 注入） ---- */
form.sent .inq-ok{text-align:center;padding:38px 22px;border:1px solid rgba(0,240,255,.28);background:rgba(0,240,255,.05);clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px))}
.inq-tick{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;font-size:26px;line-height:1;color:#0a0a14;background:var(--cyan);box-shadow:0 0 26px rgba(0,240,255,.5);margin-bottom:16px}
.inq-ok h3{font-size:20px;margin-bottom:8px}
.inq-ok p{color:var(--muted);font-size:13.5px;max-width:420px;margin:0 auto 18px;line-height:1.7}
.inq-ref{font-size:15px;letter-spacing:.16em;color:var(--cyan);border:1px dashed rgba(0,240,255,.4);padding:9px 16px;display:inline-block;margin-bottom:20px}
.inq-again{background:none;border:1px solid var(--line);color:var(--muted);font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;padding:9px 16px;cursor:pointer;transition:color .2s,border-color .2s}
.inq-again:hover{color:var(--cyan);border-color:var(--cyan)}

/* ---- 产品卡：图片悬停微缩放 ---- */
.prod-visual img{transition:transform .4s ease}
.prod:hover .prod-visual img{transform:scale(1.04)}

/* ---- 右下角悬浮询盘 ---- */
.fab-wrap{position:fixed;right:22px;bottom:24px;z-index:90;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.fab{
  display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  padding:11px 16px;font-size:12.5px;font-weight:700;letter-spacing:.06em;
  background:rgba(10,12,22,.92);border:1px solid var(--line);color:var(--text);
  backdrop-filter:blur(12px);box-shadow:0 10px 30px rgba(0,0,0,.45);
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
  transition:transform .2s,border-color .2s,box-shadow .2s;
}
.fab:hover{transform:translateY(-2px)}
.fab svg{width:16px;height:16px;flex:none}
.fab-wa{color:#8be9c0;border-color:rgba(37,211,102,.4)}
.fab-wa:hover{box-shadow:0 0 22px rgba(37,211,102,.3)}
.fab-quote{color:var(--cyan);border-color:rgba(0,240,255,.4)}
.fab-quote:hover{box-shadow:0 0 22px rgba(0,240,255,.32)}
@media (max-width:620px){
  .scene-grid{grid-template-columns:1fr}
  .fab-wrap{right:14px;bottom:14px}
  .fab span{display:none}
  .fab{padding:12px;border-radius:0}
}
@media (max-width:960px){
  .scene-grid{grid-template-columns:1fr 1fr}
}
html[dir="rtl"] .fab-wrap{right:auto;left:22px;align-items:flex-start}
/* 无实拍图的分类封面：居中显示自动生成视觉图 */
.cat-media-svg{display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 130%,rgba(0,240,255,.2),rgba(10,10,22,.95) 70%);font-size:52px}
.cat-media-svg svg{height:80%;width:auto;max-width:60%;filter:drop-shadow(0 8px 18px rgba(0,0,0,.6))}