/* ============================================================
   DLQ · 深圳市德利勤电气照明有限公司
   Design System / 2026
   ============================================================ */

/* ---------- tokens ---------- */
:root{
  --ink:#0A1020;
  --ink-soft:#26314A;
  --muted:#5D6879;
  --paper:#F5F6F8;
  --white:#fff;
  --navy:#070F22;
  --navy-2:#0D1A35;
  --brand:#1557D6;
  --brand-lt:#3D8BFF;
  --brand-ink:#0B3EA8;
  --accent:#FF7A1A;
  --accent-lt:#FFB54D;
  --line:rgba(10,16,32,.09);
  --line-2:rgba(255,255,255,.12);
  --r-sm:12px;
  --r:18px;
  --r-lg:26px;
  --r-xl:34px;
  --shadow-s:0 2px 8px rgba(10,16,32,.05);
  --shadow-m:0 18px 40px -22px rgba(10,16,32,.28);
  --shadow-l:0 40px 90px -50px rgba(10,16,32,.45);
  --ease:cubic-bezier(.16,1,.3,1);
  --nav-h:78px;
  --font:"Inter","HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",
         -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:"SF Mono","JetBrains Mono","Cascadia Mono",Consolas,monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--paper);
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(21,87,214,.16)}

/* ---------- layout ---------- */
.container{width:min(1240px,calc(100% - 48px));margin-inline:auto}
.container-wide{width:min(1440px,calc(100% - 32px));margin-inline:auto}
.section{padding:clamp(44px,5vw,84px) 0;position:relative}
.section-tight{padding:clamp(30px,3.2vw,50px) 0}
.stack-sm{display:grid;gap:14px}
.stack{display:grid;gap:22px}
.grid{display:grid;gap:clamp(16px,2vw,24px)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.center{text-align:center}
.dark{background:var(--navy);color:#fff}
.dark .muted{color:rgba(255,255,255,.6)}

/* ---------- type ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--brand);
}
.eyebrow::before{content:"";width:22px;height:1.5px;background:currentColor;opacity:.55;border-radius:2px}
.dark .eyebrow{color:var(--accent-lt)}
h1,.h1{font-size:clamp(33px,4.7vw,62px);line-height:1.08;letter-spacing:-.033em;font-weight:600}
h2,.h2{font-size:clamp(28px,3.5vw,50px);line-height:1.12;letter-spacing:-.03em;font-weight:600}
h3,.h3{font-size:clamp(19px,1.6vw,24px);line-height:1.32;letter-spacing:-.015em;font-weight:600}
h4,.h4{font-size:16.5px;line-height:1.4;font-weight:600;letter-spacing:-.01em}
.lead{font-size:clamp(16px,1.35vw,19px);line-height:1.75;color:var(--muted);max-width:62ch}
.muted{color:var(--muted)}
.small{font-size:13.5px;line-height:1.7}
.grad-text{
  background:linear-gradient(96deg,var(--brand) 0%,var(--brand-lt) 46%,var(--accent) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- buttons ---------- */
.btn{
  --bg:var(--ink);--fg:#fff;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:50px;padding:0 26px;border-radius:100px;border:1px solid transparent;
  background:var(--bg);color:var(--fg);font-size:15px;font-weight:600;letter-spacing:-.01em;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),background .3s,color .3s,border-color .3s;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -18px rgba(10,16,32,.6)}
.btn:active{transform:translateY(0)}
.btn svg{width:16px;height:16px;flex:none}
.btn-accent{--bg:linear-gradient(120deg,var(--accent),#FF9A3D);box-shadow:0 12px 26px -16px rgba(255,122,26,.9)}
.btn-accent:hover{box-shadow:0 20px 34px -16px rgba(255,122,26,.85)}
.btn-ghost{--bg:transparent;--fg:var(--ink);border-color:rgba(10,16,32,.16)}
.btn-ghost:hover{--bg:var(--white);border-color:rgba(10,16,32,.24)}
.dark .btn-ghost{--fg:#fff;border-color:rgba(255,255,255,.24)}
.dark .btn-ghost:hover{--bg:rgba(255,255,255,.08)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:14.5px;color:var(--brand)}
.link-arrow svg{width:15px;height:15px;transition:transform .4s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- header ---------- */
.site-header{position:fixed;inset:0 0 auto;z-index:80;padding:14px 0;transition:padding .4s var(--ease)}
.header-bar{
  display:flex;align-items:center;gap:24px;height:var(--nav-h);
  padding:0 12px 0 16px;border-radius:var(--r-lg);
  background:transparent;border:1px solid transparent;
  transition:background .45s var(--ease),border-color .45s,box-shadow .45s,backdrop-filter .45s;
}
.site-header.is-stuck .header-bar{
  background:rgba(255,255,255,.78);border-color:var(--line);
  box-shadow:0 18px 44px -30px rgba(10,16,32,.55);
  -webkit-backdrop-filter:saturate(180%) blur(18px);backdrop-filter:saturate(180%) blur(18px);
}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand img{height:34px;width:auto}
.brand-meta{display:none;flex-direction:column;line-height:1.15;padding-left:12px;border-left:1px solid var(--line)}
.brand-meta b{font-size:13.5px;font-weight:600;letter-spacing:-.01em}
.brand-meta span{font-size:10.5px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav a{
  position:relative;padding:10px 14px;border-radius:100px;font-size:14.5px;font-weight:500;
  color:var(--ink-soft);transition:color .25s,background .25s;
}
.nav a:hover{color:var(--ink);background:rgba(10,16,32,.045)}
.nav a.active{color:var(--brand);font-weight:600;background:rgba(21,87,214,.08)}
.header-cta{display:flex;align-items:center;gap:10px;flex:none}
.header-tel{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--ink);padding-right:6px}
.header-tel svg{width:15px;height:15px;color:var(--brand)}
.burger{
  display:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.7);align-items:center;justify-content:center;flex:none;
}
.burger span{display:block;width:17px;height:1.5px;background:var(--ink);border-radius:2px;position:relative}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:17px;height:1.5px;background:var(--ink);border-radius:2px;
  transition:transform .35s var(--ease),top .35s,opacity .3s;
}
.burger span::before{top:-6px}
.burger span::after{top:6px}
body.menu-open .burger span{background:transparent}
body.menu-open .burger span::before{top:0;transform:rotate(45deg)}
body.menu-open .burger span::after{top:0;transform:rotate(-45deg)}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:75;background:rgba(245,246,248,.97);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:calc(var(--nav-h) + 40px) 28px 34px;
  display:flex;flex-direction:column;gap:6px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .4s var(--ease),transform .4s var(--ease),visibility .4s;
}
body.menu-open .drawer{opacity:1;visibility:visible;transform:none}
.drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:17px 4px;border-bottom:1px solid var(--line);
  font-size:19px;font-weight:600;letter-spacing:-.02em;
}
.drawer a span{font-size:11px;letter-spacing:.14em;color:var(--muted);font-weight:500;text-transform:uppercase}
.drawer .btn{margin-top:22px;width:100%}

/* ---------- hero ---------- */
.hero{position:relative;padding:calc(var(--nav-h) + 34px) 0 clamp(28px,3.2vw,50px);overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-bg .mesh{
  position:absolute;inset:-20% -10% auto -10%;height:110%;
  background:
    radial-gradient(46% 44% at 18% 12%,rgba(61,139,255,.22),transparent 70%),
    radial-gradient(40% 40% at 82% 6%,rgba(255,122,26,.16),transparent 70%),
    radial-gradient(52% 46% at 62% 76%,rgba(21,87,214,.10),transparent 72%);
  filter:blur(4px);
}
.hero-bg .gridlines{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:76px 76px;
  -webkit-mask-image:radial-gradient(70% 62% at 50% 34%,#000 20%,transparent 78%);
  mask-image:radial-gradient(70% 62% at 50% 34%,#000 20%,transparent 78%);
  opacity:.65;
}
.grain{
  position:absolute;inset:0;opacity:.28;mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(28px,4vw,64px);align-items:center}
.hero-pill{
  display:inline-flex;align-items:center;gap:9px;padding:7px 15px 7px 8px;border-radius:100px;
  background:rgba(255,255,255,.72);border:1px solid var(--line);font-size:12.5px;font-weight:600;
  color:var(--ink-soft);box-shadow:var(--shadow-s);letter-spacing:.01em;
}
.hero-pill i{
  display:inline-flex;align-items:center;justify-content:center;height:22px;padding:0 9px;border-radius:100px;
  background:linear-gradient(120deg,var(--brand),var(--brand-lt));color:#fff;font-style:normal;
  font-size:10.5px;letter-spacing:.08em;
}
.hero h1{margin:18px 0 0}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero .lead{margin-top:18px;max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:clamp(18px,2.6vw,40px);margin-top:32px;padding-top:20px;border-top:1px solid var(--line)}
.hero-metrics div b{display:block;font-size:clamp(24px,2.5vw,34px);font-weight:600;letter-spacing:-.03em;line-height:1}
.hero-metrics div span{font-size:12.5px;color:var(--muted);letter-spacing:.02em}

/* hero visual card */
.hero-visual{position:relative}
.signal-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;aspect-ratio:1/.9;
  background:linear-gradient(160deg,var(--navy-2),var(--navy) 62%);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 60px 120px -60px rgba(7,15,34,.9),inset 0 1px 0 rgba(255,255,255,.08);
  color:#fff;isolation:isolate;max-height:520px;
}
.signal-card .rings{position:absolute;inset:0;opacity:.85}
.signal-card .glow{
  position:absolute;width:62%;aspect-ratio:1;right:-14%;top:-16%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,26,.42),transparent 64%);filter:blur(20px);
}
.signal-card .glow.b{left:-18%;bottom:-22%;right:auto;top:auto;background:radial-gradient(circle,rgba(61,139,255,.44),transparent 64%)}
.signal-inner{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:space-between;padding:clamp(20px,2.4vw,30px)}
.signal-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.signal-top .dot-live{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.66)}
.dot-live i{width:7px;height:7px;border-radius:50%;background:#38E08A;box-shadow:0 0 0 4px rgba(56,224,138,.18);animation:pulse 2.4s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 8px rgba(56,224,138,.06)}}
.signal-top .tag{font-family:var(--mono);font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.04em}
.signal-mid{display:grid;gap:10px}
.signal-mid .row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 15px;border-radius:16px;background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.09);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.signal-mid .row b{font-size:14px;font-weight:600;letter-spacing:-.01em}
.signal-mid .row span{font-size:11.5px;color:rgba(255,255,255,.55);letter-spacing:.06em;font-family:var(--mono)}
.signal-mid .row em{font-style:normal;font-size:11px;padding:4px 9px;border-radius:100px;background:rgba(56,224,138,.14);color:#6EF3B3;letter-spacing:.06em}
.signal-foot{display:flex;align-items:flex-end;justify-content:space-between;gap:16px}
.signal-foot .big{font-size:clamp(30px,3vw,42px);font-weight:600;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.signal-foot .big small{font-size:12px;font-weight:500;letter-spacing:.1em;color:rgba(255,255,255,.5);margin-left:8px;text-transform:uppercase}
.signal-foot .cap{font-size:11.5px;color:rgba(255,255,255,.5);letter-spacing:.05em;text-align:right;line-height:1.6}
.float-chip{
  position:absolute;z-index:3;display:flex;align-items:center;gap:10px;
  padding:11px 15px;border-radius:16px;background:rgba(255,255,255,.92);
  border:1px solid var(--line);box-shadow:var(--shadow-m);
  font-size:12.5px;font-weight:600;letter-spacing:-.01em;backdrop-filter:blur(12px);
  animation:floaty 7s var(--ease) infinite;
}
.float-chip svg{width:16px;height:16px;color:var(--brand)}
.float-chip.tl{left:-22px;top:14%}
.float-chip.br{right:-18px;bottom:12%;animation-delay:-3.5s}
.float-chip.br svg{color:var(--accent)}
@keyframes floaty{50%{transform:translateY(-9px)}}

/* ---------- marquee ---------- */
.marquee{
  --speed:38s;position:relative;overflow:hidden;padding:18px 0;border-block:1px solid var(--line);
  background:rgba(255,255,255,.55);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.marquee-track{display:flex;width:max-content;animation:scrollX var(--speed) linear infinite;gap:0}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track>span{
  display:inline-flex;align-items:center;gap:16px;padding:0 26px;font-size:14px;font-weight:500;
  color:var(--ink-soft);white-space:nowrap;letter-spacing:.01em;
}
.marquee-track>span::after{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.7}
@keyframes scrollX{to{transform:translateX(-50%)}}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap;margin-bottom:clamp(22px,2.4vw,36px)}
.sec-head .txt{max-width:64ch}
.sec-head h2{margin-top:11px}
.sec-head .lead{margin-top:11px;font-size:15.5px}

/* ---------- cards ---------- */
.card{
  position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(18px,1.8vw,24px);transition:transform .55s var(--ease),box-shadow .55s var(--ease),border-color .4s;
  overflow:hidden;
}
.card::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:radial-gradient(70% 60% at 50% 0%,rgba(21,87,214,.06),transparent 70%);
  opacity:0;transition:opacity .5s;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-m);border-color:rgba(21,87,214,.22)}
.card:hover::after{opacity:1}
.card h3{margin-top:auto}
.card p{color:var(--muted);font-size:14.5px;margin-top:9px}
.card .idx{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.icon-box{
  display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:14px;
  background:linear-gradient(150deg,rgba(21,87,214,.10),rgba(61,139,255,.04));
  border:1px solid rgba(21,87,214,.14);color:var(--brand);margin-bottom:14px;
}
.icon-box svg{width:21px;height:21px;stroke-width:1.5}
.icon-box.orange{background:linear-gradient(150deg,rgba(255,122,26,.14),rgba(255,181,77,.05));border-color:rgba(255,122,26,.2);color:#E4610A}

/* bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(14px,1.6vw,20px)}
.bento .card{display:flex;flex-direction:column;min-height:158px}
.bento .span3{grid-column:span 3}
.bento .span2{grid-column:span 2}
.bento .span4{grid-column:span 4}
.bento .span6{grid-column:span 6}
.card-feature{
  background:linear-gradient(155deg,var(--navy-2),var(--navy));color:#fff;border-color:rgba(255,255,255,.08);
  display:flex;flex-direction:column;justify-content:space-between;min-height:250px;
}
.card-feature p{color:rgba(255,255,255,.62)}
.card-feature .icon-box{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14);color:var(--accent-lt)}
.card-list{display:grid;gap:9px;margin-top:13px}
.card-list li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted)}
.card-list li svg{width:15px;height:15px;flex:none;margin-top:4px;color:var(--brand)}
.card-feature .card-list li{color:rgba(255,255,255,.7)}
.card-feature .card-list li svg{color:var(--accent-lt)}
.pill-tag{
  display:inline-block;padding:4px 10px;border-radius:100px;font-size:11.5px;font-weight:500;
  background:rgba(21,87,214,.07);color:var(--brand-ink);letter-spacing:.02em;
}

/* ---------- capability / process ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line)}
.step{position:relative;padding:22px 18px 0 0}
.step::before{
  content:"";position:absolute;left:0;top:-1px;height:2px;width:var(--w,0%);background:linear-gradient(90deg,var(--brand),var(--accent));
  transition:width 1.2s var(--ease);
}
.step .n{font-family:var(--mono);font-size:11.5px;color:var(--accent);letter-spacing:.1em}
.step h4{margin:10px 0 6px}
.step p{font-size:13px;color:var(--muted);line-height:1.65}
.dark .steps{border-color:var(--line-2)}
.dark .step p{color:rgba(255,255,255,.58)}

/* ---------- stats band ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,3vw,40px)}
.stat b{display:block;font-size:clamp(34px,4vw,58px);font-weight:600;letter-spacing:-.04em;line-height:1;font-variant-numeric:tabular-nums}
.stat b i{font-style:normal;font-size:.44em;margin-left:4px;color:var(--accent-lt);letter-spacing:0}
.stat span{display:block;margin-top:9px;font-size:13.5px;color:rgba(255,255,255,.58);letter-spacing:.02em}

/* ---------- solutions ---------- */
.sol-list{display:grid;gap:0;border-top:1px solid var(--line)}
.sol-item{
  display:grid;grid-template-columns:96px 1.15fr 1fr auto;gap:clamp(16px,3vw,40px);align-items:center;
  padding:clamp(18px,2.1vw,26px) 0;border-bottom:1px solid var(--line);position:relative;
  transition:padding .5s var(--ease),background .4s;
}
.sol-item::before{
  content:"";position:absolute;left:-24px;right:-24px;top:0;bottom:0;border-radius:20px;
  background:linear-gradient(90deg,rgba(21,87,214,.05),transparent 70%);opacity:0;transition:opacity .45s;
}
.sol-item:hover::before{opacity:1}
.sol-item .no{font-family:var(--mono);font-size:13px;color:var(--muted);letter-spacing:.06em}
.sol-item h3{position:relative}
.sol-item p{color:var(--muted);font-size:14.5px;position:relative}
.sol-item .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.sol-item .go{
  width:46px;height:46px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;
  transition:background .4s,color .4s,border-color .4s,transform .5s var(--ease);position:relative;
}
.sol-item:hover .go{background:var(--ink);color:#fff;border-color:var(--ink);transform:rotate(-45deg)}
.sol-item .go svg{width:17px;height:17px}

/* ---------- products ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}
.chip{
  padding:9px 17px;border-radius:100px;border:1px solid var(--line);background:rgba(255,255,255,.7);
  font-size:13.5px;font-weight:500;color:var(--ink-soft);transition:all .3s var(--ease);
}
.chip:hover{border-color:rgba(21,87,214,.3);color:var(--brand)}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}
.search{
  display:flex;align-items:center;gap:10px;height:46px;padding:0 18px;border-radius:100px;
  background:var(--white);border:1px solid var(--line);min-width:min(320px,100%);
}
.search svg{width:16px;height:16px;color:var(--muted);flex:none}
.search input{border:0;outline:0;background:transparent;font:inherit;font-size:14px;width:100%}
.prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(272px,1fr));gap:clamp(14px,1.8vw,22px)}
.prod{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;
  display:flex;flex-direction:column;gap:14px;transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s;
}
.prod:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(21,87,214,.2)}
.prod-visual{
  height:164px;border-radius:16px;display:grid;place-items:center;position:relative;overflow:hidden;
  background:linear-gradient(160deg,#FFFFFF,#F7F9FC);
  border:1px solid rgba(10,16,32,.07);
}
.prod-visual svg{width:64px;height:64px;color:var(--brand);opacity:.85;stroke-width:1.2}
.prod-visual.has-img{padding:12px}
.prod-visual.has-img img{
  width:100%;height:100%;object-fit:contain;display:block;
  transition:transform .6s var(--ease);
}
.prod:hover .prod-visual.has-img img{transform:scale(1.045)}
.prod-visual .code{
  position:absolute;right:10px;top:8px;font-family:var(--mono);font-size:10.5px;color:var(--muted);letter-spacing:.06em;
  background:rgba(255,255,255,.86);padding:2px 7px;border-radius:100px;backdrop-filter:blur(4px);
}
.prod .meta{display:flex;align-items:center;justify-content:space-between;gap:10px}
.prod .cat{font-size:11.5px;letter-spacing:.04em;color:var(--brand);font-weight:600}
.prod h4{font-size:16px;letter-spacing:-.01em}
.prod .spec{font-size:12.5px;color:var(--muted);line-height:1.6}
.prod .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line)}
.prod .foot span{font-size:11.5px;color:var(--muted)}
.empty{padding:60px 20px;text-align:center;color:var(--muted);font-size:14px}

/* brand filter + badge */
.filter-row{display:grid;gap:12px}
.filter-label{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:600}
.chip-brand{position:relative;padding-left:30px}
.chip-brand::before{
  content:"";position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--brand);opacity:.55;
}
.chip-brand.on::before{background:var(--accent-lt);opacity:1}
.brand-badge{
  font-size:11px;font-weight:600;letter-spacing:.02em;padding:3px 9px;border-radius:100px;
  background:rgba(10,16,32,.055);color:var(--ink-soft);white-space:nowrap;
}
.brand-badge[data-brand*="DALITEK"]{background:rgba(255,122,26,.12);color:#C9550B}

/* brand hero lockup */
.brand-lockup{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.brand-mark{
  display:inline-flex;align-items:baseline;gap:10px;padding:12px 20px;border-radius:16px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-s);
}
.brand-mark b{
  font-size:22px;font-weight:700;letter-spacing:-.02em;font-style:italic;
  background:linear-gradient(100deg,var(--brand-ink),var(--brand-lt) 60%,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.brand-mark span{font-size:13px;font-weight:600;color:var(--ink-soft);letter-spacing:.02em}
.brand-facts{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(14px,2vw,22px)}
.brand-fact{padding:14px 0;border-top:1px solid var(--line)}
.brand-fact b{display:block;font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-.03em;line-height:1}
.brand-fact span{display:block;margin-top:7px;font-size:12.5px;color:var(--muted)}

/* architecture diagram */
.arch{
  border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;padding:clamp(14px,1.8vw,22px);
  display:grid;gap:clamp(10px,1.2vw,14px);
}
.arch-row{display:grid;gap:12px;align-items:stretch}
.arch-row.c5{grid-template-columns:repeat(5,1fr)}
.arch-row.c4{grid-template-columns:repeat(4,1fr)}
.arch-row.c3{grid-template-columns:repeat(3,1fr)}
.arch-row.c2{grid-template-columns:repeat(2,1fr)}
.arch-node{
  border:1px solid var(--line);border-radius:12px;padding:11px 12px;background:#FBFCFE;
  display:flex;flex-direction:column;gap:4px;min-height:62px;
}
.arch-node b{font-size:13px;font-weight:600;letter-spacing:-.01em}
.arch-node span{font-size:11px;color:var(--muted);font-family:var(--mono);letter-spacing:.02em}
.arch-node.hi{background:linear-gradient(150deg,rgba(21,87,214,.09),rgba(61,139,255,.03));border-color:rgba(21,87,214,.22)}
.arch-node.hi b{color:var(--brand-ink)}
.arch-node.core{background:linear-gradient(150deg,var(--navy-2),var(--navy));border-color:rgba(255,255,255,.1);color:#fff}
.arch-node.core b{color:#fff}
.arch-node.core span{color:rgba(255,255,255,.5)}
.arch-bus{
  display:flex;align-items:center;justify-content:center;gap:10px;height:28px;border-radius:10px;
  background:repeating-linear-gradient(90deg,rgba(21,87,214,.18) 0 8px,transparent 8px 16px);
  font-size:11px;letter-spacing:.16em;color:var(--brand);font-weight:600;text-transform:uppercase;
}
.arch-bus span{background:#fff;padding:0 10px}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px;background:#fff;border-radius:var(--r-lg);overflow:hidden}
.spec-table th,.spec-table td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{
  font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600;
  background:#FAFBFC;
}
.spec-table td:first-child{font-family:var(--mono);font-size:12.5px;color:var(--brand-ink);white-space:nowrap}
.spec-table tr:last-child td{border-bottom:0}
.spec-table tbody tr:hover{background:rgba(21,87,214,.03)}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg)}

/* brand card on home */
.brand-card{
  display:grid;grid-template-columns:1.18fr .82fr;gap:clamp(18px,2.4vw,34px);align-items:center;
  border-radius:var(--r-xl);border:1px solid var(--line);background:#fff;overflow:hidden;
  padding:clamp(18px,2.4vw,30px);
}
.brand-card .visual{
  position:relative;border-radius:var(--r-lg);min-height:196px;overflow:hidden;
  background:linear-gradient(155deg,var(--navy-2),var(--navy));color:#fff;
  display:flex;flex-direction:column;justify-content:space-between;padding:18px;
}
.brand-card .visual .glow{position:absolute;width:60%;aspect-ratio:1;right:-16%;top:-20%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,26,.4),transparent 64%);filter:blur(14px)}
.brand-card .visual .k{position:relative;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.55)}
.brand-card .visual .t{position:relative;font-size:clamp(20px,2vw,26px);font-weight:600;letter-spacing:-.02em;line-height:1.3;margin-top:8px}
.brand-card .visual .chips{
  position:relative;display:flex;gap:7px;flex-wrap:wrap;margin-top:16px;
}
.brand-card .visual .chips span{
  font-size:11px;padding:5px 10px;border-radius:100px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.85);
}
.brand-card .visual .visual-prods{
  position:relative;display:flex;gap:8px;margin-top:18px;align-items:flex-end;
}
.brand-card .visual .visual-prods span{
  flex:1;height:76px;border-radius:10px;background:rgba(255,255,255,.94);
  display:grid;place-items:center;padding:7px;overflow:hidden;
  box-shadow:0 12px 24px -18px rgba(0,0,0,.9);
}
.brand-card .visual .visual-prods img{max-width:100%;max-height:100%;object-fit:contain}

/* product gallery (brand page) */
.pgal{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.6vw,18px)}
.pgal figure{
  margin:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:11px;
  display:flex;flex-direction:column;gap:8px;transition:transform .5s var(--ease),box-shadow .5s var(--ease),border-color .4s;
}
.pgal figure:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(21,87,214,.22)}
.pgal .ph{height:108px;display:grid;place-items:center;overflow:hidden}
.pgal .ph img{max-width:100%;max-height:100%;object-fit:contain;transition:transform .6s var(--ease)}
.pgal figure:hover .ph img{transform:scale(1.06)}
.pgal figcaption{font-size:12.5px;font-weight:600;letter-spacing:-.01em;line-height:1.4}
.pgal figcaption span{display:block;font-family:var(--mono);font-size:10.5px;color:var(--muted);font-weight:400;margin-top:4px;letter-spacing:.02em}

/* category nav (products) */
.catnav-wrap{
  position:sticky;top:calc(var(--nav-h) + 14px);z-index:40;
  padding:10px 0 12px;margin-bottom:6px;
}
.catnav{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:space-between;
  padding:10px 12px;border-radius:100px;border:1px solid var(--line);
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:saturate(180%) blur(16px);backdrop-filter:saturate(180%) blur(16px);
  box-shadow:0 16px 40px -32px rgba(10,16,32,.55);
}
.catnav-chips{display:flex;align-items:center;gap:6px;overflow-x:auto;flex:1 1 420px;scrollbar-width:none}
.catnav-chips::-webkit-scrollbar{display:none}
.catnav .chip{
  display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:100px;
  border:1px solid transparent;background:transparent;font-size:13px;font-weight:500;
  color:var(--ink-soft);white-space:nowrap;transition:all .28s var(--ease);
}
.catnav .chip:hover{background:rgba(10,16,32,.045);color:var(--ink)}
.catnav .chip.on{background:var(--ink);border-color:var(--ink);color:#fff}
.catnav .chip-n{
  font-size:10.5px;font-family:var(--mono);opacity:.55;letter-spacing:.02em;
}
.catnav .search{height:40px;min-width:min(280px,100%);flex:0 1 auto;border-color:var(--line)}

/* grouped catalog */
.catgroup{margin-top:clamp(26px,3vw,42px);scroll-margin-top:170px}
.catgroup:first-child{margin-top:6px}
.cathead{
  display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding-bottom:11px;margin-bottom:clamp(14px,1.6vw,20px);border-bottom:1px solid var(--line);
}
.cathead-txt{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.cathead h2{
  font-size:clamp(19px,1.7vw,24px);letter-spacing:-.02em;line-height:1.2;
  display:inline-flex;align-items:center;gap:10px;
}
.cathead h2::before{
  content:"";width:3px;height:17px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand-lt),var(--accent));
}
.cathead p{font-size:13px;color:var(--muted);margin:0}
.cathead-meta{display:flex;align-items:center;gap:9px;flex:none}

@media (max-width:900px){
  .catnav-wrap{position:static;padding:12px 0 0}
  .catnav{border-radius:18px;padding:9px 10px;gap:10px}
  .catnav-chips{flex:1 1 100%}
  .catnav .search{flex:1 1 100%}
  .catgroup{scroll-margin-top:96px}
  .cathead-txt{display:block}
  .cathead p{margin-top:5px}
}

/* ---------- news ---------- */
.news-list{display:grid;gap:0;border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:118px 1fr auto;gap:clamp(14px,2.5vw,34px);align-items:center;
  padding:19px 0;border-bottom:1px solid var(--line);cursor:pointer;transition:padding .45s var(--ease),color .3s;
}
.news-row:hover{padding-left:10px}
.news-row time{font-family:var(--mono);font-size:12.5px;color:var(--muted);letter-spacing:.03em}
.news-row h4{font-size:17px;letter-spacing:-.02em;transition:color .3s}
.news-row:hover h4{color:var(--brand)}
.news-row .sub{font-size:13px;color:var(--muted);margin-top:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-row .kind{font-size:11.5px;padding:5px 11px;border-radius:100px;background:rgba(255,122,26,.1);color:#C9550B;white-space:nowrap}
.news-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.8vw,22px)}
.news-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;
  display:flex;flex-direction:column;gap:14px;transition:transform .5s var(--ease),box-shadow .5s var(--ease);
}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-m)}
.news-card .top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.news-card time{font-family:var(--mono);font-size:11.5px;color:var(--muted)}
.news-card p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* drawer / modal */
.modal{
  position:fixed;inset:0;z-index:120;display:grid;place-items:center;padding:24px;
  background:rgba(7,15,34,.5);opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.modal.on{opacity:1;visibility:visible}
.modal-box{
  width:min(760px,100%);max-height:82vh;overflow:auto;background:#fff;border-radius:var(--r-xl);
  padding:clamp(24px,3vw,42px);transform:translateY(14px) scale(.98);transition:transform .45s var(--ease);
  box-shadow:var(--shadow-l);
}
.modal.on .modal-box{transform:none}
.modal-close{
  position:absolute;top:22px;right:22px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;
}
.modal-close svg{width:16px;height:16px}
.modal-body h2{margin:14px 0 18px}
.modal-body p{color:var(--ink-soft);font-size:15px;line-height:1.85;margin-bottom:14px}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.field{display:grid;gap:8px}
.field.full{grid-column:1/-1}
.field label{font-size:12.5px;font-weight:600;letter-spacing:.02em;color:var(--ink-soft)}
.field label i{color:var(--accent);font-style:normal;margin-left:3px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 15px;border-radius:12px;border:1px solid var(--line);background:#FBFCFE;
  font:inherit;font-size:14.5px;color:var(--ink);outline:0;transition:border-color .25s,box-shadow .25s,background .25s;
}
.field textarea{min-height:104px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:rgba(21,87,214,.5);box-shadow:0 0 0 4px rgba(21,87,214,.1);background:#fff;
}
.field .err{font-size:12px;color:#D2352B;display:none}
.field.invalid input,.field.invalid textarea{border-color:rgba(210,53,43,.55);box-shadow:0 0 0 4px rgba(210,53,43,.08)}
.field.invalid .err{display:block}
.form-note{font-size:12px;color:var(--muted);margin-top:14px;line-height:1.7}
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);z-index:200;
  display:flex;align-items:center;gap:10px;padding:13px 20px;border-radius:100px;
  background:var(--ink);color:#fff;font-size:14px;font-weight:500;box-shadow:var(--shadow-l);
  opacity:0;visibility:hidden;transition:all .45s var(--ease);
}
.toast.on{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast.err{background:#B3261E}
.toast svg{width:16px;height:16px}

/* ---------- contact blocks ---------- */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(24px,4vw,64px);align-items:start}
.info-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-item:first-child{padding-top:0}
.info-item .icon-box{margin:0;width:44px;height:44px;border-radius:13px;flex:none}
.info-item .icon-box svg{width:19px;height:19px}
.info-item h4{font-size:14px;color:var(--muted);font-weight:500;letter-spacing:.02em}
.info-item p{font-size:16px;font-weight:600;margin-top:5px;letter-spacing:-.01em;word-break:break-word}
.info-item p small{display:block;font-size:12.5px;font-weight:400;color:var(--muted);margin-top:5px;letter-spacing:0}
.map-card{
  margin-top:20px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);position:relative;
  background:
    linear-gradient(0deg,rgba(21,87,214,.06),rgba(21,87,214,.06)),
    repeating-linear-gradient(0deg,transparent 0 27px,rgba(10,16,32,.06) 27px 28px),
    repeating-linear-gradient(90deg,transparent 0 27px,rgba(10,16,32,.06) 27px 28px),
    #F2F5F9;
  height:158px;display:grid;place-items:center;
}
.map-card .pin{display:grid;gap:8px;place-items:center;text-align:center}
.map-card .pin b{font-size:13.5px}
.map-card .pin span{font-size:12px;color:var(--muted)}

/* ---------- page hero ---------- */
.page-hero{position:relative;padding:calc(var(--nav-h) + 34px) 0 clamp(24px,2.6vw,38px);overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero .mesh{position:absolute;inset:-30% -10% auto -10%;height:120%;pointer-events:none;
  background:
    radial-gradient(40% 50% at 12% 0%,rgba(61,139,255,.20),transparent 70%),
    radial-gradient(34% 44% at 88% 4%,rgba(255,122,26,.14),transparent 70%);
}
.page-hero-inner{position:relative;z-index:1;display:grid;gap:11px}
.page-hero h1{font-size:clamp(26px,2.85vw,40px);line-height:1.16;letter-spacing:-.028em;max-width:32ch}
.page-hero .lead{font-size:15.5px;line-height:1.72;max-width:70ch}
.page-hero .hero-actions{margin-top:13px}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb svg{width:12px;height:12px;opacity:.5}

/* ---------- about ---------- */
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,64px);align-items:center}
.figure-stack{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fig{
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--white);padding:18px;
  display:flex;flex-direction:column;justify-content:space-between;min-height:124px;
}
.fig.dark{background:linear-gradient(155deg,var(--navy-2),var(--navy));border-color:rgba(255,255,255,.08);color:#fff}
.fig .n{font-size:clamp(26px,2.6vw,34px);font-weight:600;letter-spacing:-.035em;line-height:1}
.fig .t{font-size:12.5px;color:var(--muted);margin-top:8px}
.fig.dark .t{color:rgba(255,255,255,.6)}
.fig:nth-child(1){grid-column:1/-1;min-height:150px}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.8vw,22px)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(140deg,var(--navy-2),var(--navy) 60%);color:#fff;
  padding:clamp(26px,3.4vw,46px);
  display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(22px,3vw,48px);align-items:center;
}
.cta-band::before{
  content:"";position:absolute;width:56%;aspect-ratio:1;right:-12%;top:-40%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,26,.30),transparent 64%);filter:blur(10px);
}
.cta-band::after{
  content:"";position:absolute;width:48%;aspect-ratio:1;left:-14%;bottom:-46%;border-radius:50%;
  background:radial-gradient(circle,rgba(61,139,255,.28),transparent 64%);filter:blur(10px);
}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{max-width:22ch}
.cta-band p{color:rgba(255,255,255,.66);margin-top:12px;max-width:50ch}
.cta-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.cta-actions .btn{justify-content:center}
.cta-actions .small{color:rgba(255,255,255,.5);text-align:center;margin-top:2px}

/* ---------- footer ---------- */
.site-footer{background:var(--navy);color:#fff;padding:clamp(38px,4.4vw,62px) 0 26px;position:relative;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background:radial-gradient(40% 60% at 82% 0%,rgba(21,87,214,.22),transparent 68%);
}
.footer-grid{position:relative;display:grid;grid-template-columns:1.55fr 0.95fr 0.95fr 1.15fr;gap:clamp(24px,3vw,50px)}
.footer-brand{display:flex;align-items:center;gap:16px;text-decoration:none;margin-bottom:2px}
.footer-logo{
  display:inline-flex;align-items:center;justify-content:center;flex:none;
  background:linear-gradient(180deg,#fff,#F3F5F9);border-radius:16px;padding:14px 18px;
  box-shadow:0 16px 34px -22px rgba(0,0,0,.95),inset 0 0 0 1px rgba(255,255,255,.9);
}
.footer-logo img{height:34px;width:auto;display:block}
.footer-brand-txt b{display:block;font-size:16.5px;font-weight:600;color:#fff;letter-spacing:-.012em;line-height:1.35}
.footer-brand-txt em{
  display:block;font-style:normal;font-size:10.5px;letter-spacing:.13em;color:rgba(255,255,255,.5);
  margin-top:8px;text-transform:uppercase;
}
.footer-about p{color:rgba(255,255,255,.6);font-size:13.5px;line-height:1.85;margin-top:20px;max-width:38ch}
.footer-quick{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.fq{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:100px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.03);
  font-size:12.5px;font-weight:600;color:rgba(255,255,255,.86);
  transition:background .3s,border-color .3s,transform .4s var(--ease);
}
.fq:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.32);transform:translateY(-2px)}
.fq svg{width:14px;height:14px;flex:none;color:var(--accent-lt)}
.footer-col h5{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.42);font-weight:600;margin-bottom:16px;line-height:1.4;padding-top:6px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .25s}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:13px}
.footer-contact svg{width:15px;height:15px;flex:none;margin-top:4px;color:var(--accent-lt)}
.footer-bottom{
  position:relative;margin-top:clamp(26px,3.2vw,42px);padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.42);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a:hover{color:rgba(255,255,255,.8)}

/* to top */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:70;width:46px;height:46px;border-radius:50%;
  background:var(--ink);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-m);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .45s var(--ease);
}
.to-top.on{opacity:1;visibility:visible;transform:none}
.to-top svg{width:17px;height:17px}

/* ---------- reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal-delay="1"]{transition-delay:.08s}
[data-reveal-delay="2"]{transition-delay:.16s}
[data-reveal-delay="3"]{transition-delay:.24s}
[data-reveal-delay="4"]{transition-delay:.32s}
[data-reveal-delay="5"]{transition-delay:.4s}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .brand-meta{display:none}
  .header-tel{display:none}
  .nav a{padding:10px 11px;font-size:14px}
}
@media (max-width:1024px){
  .nav{display:none}
  .burger{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:2}
  .signal-card{aspect-ratio:1/.82}
  .float-chip.tl{left:6px}
  .float-chip.br{right:6px}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento .span3,.bento .span2,.bento .span4,.bento .span6{grid-column:span 2}
  .bento .span3.half{grid-column:span 1}
  .stats{grid-template-columns:repeat(2,1fr);gap:34px}
  .steps{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .sol-item{grid-template-columns:60px 1fr auto;gap:16px}
  .sol-item p{display:none}
  .about-split,.contact-grid,.cta-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .news-card-grid{grid-template-columns:1fr}
  .value-grid{grid-template-columns:1fr}
  .brand-facts{grid-template-columns:repeat(2,1fr)}
  .arch-row.c5,.arch-row.c4{grid-template-columns:repeat(2,1fr)}
  .brand-card{grid-template-columns:1fr}
  .pgal{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:720px){
  .arch-row.c5,.arch-row.c4,.arch-row.c3,.arch-row.c2{grid-template-columns:1fr}
  .brand-facts{grid-template-columns:1fr 1fr}
  .brand-card{padding:20px}
  .pgal{grid-template-columns:repeat(2,1fr)}
  .pgal .ph{height:104px}
}
@media (max-width:720px){
  .container{width:calc(100% - 32px)}
  .hero{padding-top:calc(var(--nav-h) + 44px)}
  .hero-metrics{gap:20px 30px}
  .hero-metrics div{min-width:calc(50% - 30px)}
  .g-2,.g-3,.g-4{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .bento .span3,.bento .span2,.bento .span4,.bento .span6,.bento .span3.half{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .news-row{grid-template-columns:1fr auto;gap:8px 14px}
  .news-row time{grid-column:1/-1;order:-1}
  .news-row .sub{display:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 24px}
  .figure-stack{grid-template-columns:1fr}
  .fig:nth-child(1){grid-column:auto}
  .sec-head{flex-direction:column;align-items:flex-start}
  .signal-card{aspect-ratio:1/1.05}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none}
}