/* ==========================================================================
   MARS · Shanghai Mars Industrial — design system v3 (dark technical)
   Single stylesheet, no external fonts, no third-party CSS.
   ========================================================================== */

@font-face{font-family:Inter;src:url('../fonts/inter-variable.woff2') format('woff2');font-weight:100 900;font-display:swap;font-style:normal}

:root{
  /* surface scale */
  --bg:#05090F;
  --bg-2:#080F18;
  --panel:#0C1622;
  --panel-2:#111E2E;
  --panel-3:#16293C;
  --line:rgba(150,186,216,.14);
  --line-soft:rgba(150,186,216,.08);
  --line-strong:rgba(150,186,216,.26);

  /* ink */
  --ink:#EAF2F9;
  --ink-2:#B9CAD9;
  --muted:#8598AB;
  --faint:#61748A;

  /* accent */
  --accent:#3ED2E8;
  --accent-2:#1E9FD0;
  --accent-ink:#04222B;
  --accent-glow:rgba(62,210,232,.16);
  --accent-line:linear-gradient(90deg,var(--accent),rgba(62,210,232,0));

  /* light tiles (product imagery lives on light) */
  --tile:#F4F8FB;
  --tile-2:#E4EDF4;
  --tile-ink:#0B1canvas;
  --tile-ink:#0C1825;

  --radius-s:4px;
  --radius:10px;
  --radius-l:18px;
  --wrap:1260px;
  --wrap-wide:1500px;
  --gutter:clamp(20px,4vw,48px);

  --t-fast:.16s cubic-bezier(.4,0,.2,1);
  --t:.28s cubic-bezier(.4,0,.2,1);
  --t-slow:.6s cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;line-height:1.65;font-weight:400;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
h1,h2,h3,h4{margin:0;font-weight:300;letter-spacing:-.022em;line-height:1.12;color:#fff}
h1{font-size:clamp(2.4rem,5.4vw,4.35rem)}
h2{font-size:clamp(1.85rem,3.5vw,2.9rem)}
h3{font-size:clamp(1.05rem,1.5vw,1.3rem);font-weight:500;letter-spacing:-.01em;line-height:1.3}
h4{font-size:1rem;font-weight:600;letter-spacing:0}
p{margin:0 0 1.1em}
strong,b{font-weight:600;color:#fff}
::selection{background:var(--accent);color:var(--accent-ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}

/* ---------------------------------------------------------------- layout */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.wrap-wide{max-width:var(--wrap-wide)}
.wrap-narrow{max-width:860px}
.section{padding-block:clamp(64px,8vw,124px);position:relative}
.section-tight{padding-block:clamp(44px,5vw,76px)}
.section-alt{background:var(--bg-2)}
.section-panel{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent);border:0;margin:0}
.grid{display:grid;gap:clamp(18px,2.2vw,30px)}
.g-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(30px,5vw,84px);align-items:center}
.split-wide{grid-template-columns:1.25fr .75fr}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--accent);color:var(--accent-ink);padding:12px 20px;font-weight:600}
.skip-link:focus{left:12px;top:12px}

/* -------------------------------------------------------------- eyebrows */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;margin:0 0 18px;
  font-size:.72rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);
}
.eyebrow::before{content:'';width:26px;height:1px;background:var(--accent);opacity:.7;flex:none}
.eyebrow.plain::before{display:none}
.lede{font-size:clamp(1.02rem,1.35vw,1.18rem);line-height:1.7;color:var(--ink-2);max-width:62ch}
.muted{color:var(--muted)}
.small{font-size:.85rem;line-height:1.6}
.tiny{font-size:.76rem;line-height:1.55;color:var(--faint)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:clamp(28px,3.6vw,52px);flex-wrap:wrap}
.section-head p.lede{margin:14px 0 0}

/* --------------------------------------------------------------- buttons */
.btn{
  --btn-bg:var(--accent);--btn-ink:var(--accent-ink);
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;border-radius:var(--radius-s);border:1px solid transparent;
  background:var(--btn-bg);color:var(--btn-ink);
  font-size:.92rem;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform var(--t-fast),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  box-shadow:0 10px 30px -12px rgba(62,210,232,.55);
}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 38px -12px rgba(62,210,232,.7)}
.btn:active{transform:translateY(0)}
.btn .arrow{transition:transform var(--t)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-ghost{--btn-bg:transparent;--btn-ink:var(--ink);border-color:var(--line-strong);box-shadow:none}
.btn-ghost:hover{border-color:var(--accent);color:#fff;background:rgba(62,210,232,.08);box-shadow:none}
.btn-light{--btn-bg:#fff;--btn-ink:#0B1622;box-shadow:0 10px 30px -14px rgba(0,0,0,.6)}
.btn-sm{padding:10px 18px;font-size:.84rem}
.btn-block{width:100%}
.link{
  display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:600;font-size:.9rem;
  transition:gap var(--t),color var(--t);
}
.link:hover{gap:14px;color:#8BE7F5}
.link .arrow{transition:transform var(--t)}

/* ---------------------------------------------------------------- header */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(5,9,15,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:background var(--t),border-color var(--t);
}
.site-header.is-scrolled{background:rgba(5,9,15,.94);border-color:var(--line)}
.nav{display:flex;align-items:center;gap:clamp(16px,2.4vw,38px);height:76px}
.brand{display:flex;align-items:center;flex:none}
.brand img{height:34px;width:auto}
.nav-main{display:flex;align-items:center;gap:clamp(12px,1.8vw,30px);margin-inline:auto}
.nav-main a{
  position:relative;font-size:.9rem;font-weight:500;color:var(--ink-2);padding:8px 2px;
  transition:color var(--t);
}
.nav-main a::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-main a:hover{color:#fff}
.nav-main a:hover::after,.nav-main a[aria-current]::after{transform:scaleX(1)}
.nav-main a[aria-current]{color:#fff}
.nav-tools{display:flex;align-items:center;gap:14px;flex:none}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border:1px solid var(--line);border-radius:var(--radius-s);background:transparent;color:var(--ink-2);
  transition:border-color var(--t),color var(--t),background var(--t);position:relative;
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent);background:rgba(62,210,232,.07)}
.cart-count{
  position:absolute;top:-7px;right:-7px;min-width:19px;height:19px;padding:0 5px;
  display:none;align-items:center;justify-content:center;border-radius:99px;
  background:var(--accent);color:var(--accent-ink);font-size:.68rem;font-weight:700;
}
.cart-count.is-on{display:inline-flex}
.menu-toggle{display:none}
@media(max-width:1080px){
  .nav-main{
    position:fixed;inset:76px 0 auto;flex-direction:column;align-items:stretch;gap:0;
    background:var(--panel);border-bottom:1px solid var(--line);padding:8px var(--gutter) 24px;
    transform:translateY(-12px);opacity:0;visibility:hidden;transition:all var(--t);
  }
  .nav-main.is-open{transform:none;opacity:1;visibility:visible}
  .nav-main a{padding:15px 0;border-bottom:1px solid var(--line-soft);font-size:1rem}
  .nav-main a::after{display:none}
  .menu-toggle{display:inline-flex}
}

/* ------------------------------------------------------------------ hero */
.hero{position:relative;overflow:hidden;isolation:isolate;background:var(--bg)}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.5}
.hero::after{
  content:'';position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(120% 80% at 78% 32%,rgba(62,210,232,.13),transparent 60%),
    linear-gradient(100deg,var(--bg) 22%,rgba(5,9,15,.86) 46%,rgba(5,9,15,.34) 100%),
    linear-gradient(180deg,rgba(5,9,15,.6),transparent 30%,rgba(5,9,15,.9));
}
.hero-inner{padding-block:clamp(88px,13vw,180px);max-width:760px}
.hero h1{margin-bottom:26px}
.hero h1 em{font-style:normal;color:var(--accent);font-weight:400}
.hero .lede{font-size:clamp(1.05rem,1.6vw,1.28rem);color:var(--ink-2)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:38px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-soft);
  border-top:1px solid var(--line-soft);
}
.hero-stats div{background:var(--bg);padding:26px clamp(14px,2vw,28px)}
.hero-stats dt{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:8px}
.hero-stats dd{margin:0;font-size:clamp(1.15rem,2vw,1.6rem);font-weight:300;color:#fff;letter-spacing:-.02em}
.page-hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--line-soft)}
.page-hero .hero-inner{padding-block:clamp(56px,8vw,104px);max-width:820px}
.page-hero h1{font-size:clamp(2rem,4.2vw,3.4rem)}

/* ------------------------------------------------------------ breadcrumbs */
.crumbs{border-bottom:1px solid var(--line-soft);background:var(--bg)}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:14px 0;list-style:none;font-size:.78rem;color:var(--faint)}
.crumbs li+li::before{content:'/';margin-right:8px;color:var(--line-strong)}
.crumbs a{color:var(--muted);transition:color var(--t)}
.crumbs a:hover{color:var(--accent)}
.crumbs [aria-current]{color:var(--ink-2)}

/* ----------------------------------------------------------------- cards */
.card{
  min-width:0;position:relative;background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius);
  transition:border-color var(--t),transform var(--t),box-shadow var(--t),background var(--t);
  display:flex;flex-direction:column;overflow:hidden;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 26px 60px -30px rgba(0,0,0,.95)}
.card-body{min-width:0;padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3 a{transition:color var(--t)}
.card:hover h3 a{color:var(--accent)}

/* product tile: imagery always sits on a light plate */
.tile{
  position:relative;overflow:hidden;
  background:radial-gradient(58% 52% at 50% 46%,rgba(62,210,232,.13),transparent 70%),
             linear-gradient(180deg,#101D2C 0%,#0A1421 100%);
}
.tile img{
  width:100%;aspect-ratio:4/3;object-fit:contain;padding:9% 12%;
  filter:drop-shadow(0 16px 22px rgba(0,0,0,.55));
  transition:transform var(--t-slow),filter var(--t);
}
.card:hover .tile img,.cat-card:hover .tile img{transform:scale(1.05) translateY(-2px);filter:drop-shadow(0 22px 28px rgba(0,0,0,.7))}
.tile::after{
  content:'';position:absolute;left:50%;bottom:9%;transform:translateX(-50%);
  width:56%;height:10px;border-radius:50%;pointer-events:none;
  background:radial-gradient(ellipse at center,rgba(62,210,232,.22),transparent 70%);
}

.chip{
  max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:3px;
  background:rgba(62,210,232,.1);border:1px solid rgba(62,210,232,.22);
  color:var(--accent);font-size:.68rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
}
.chip-neutral{background:rgba(150,186,216,.07);border-color:var(--line);color:var(--muted)}
.card-specs{display:grid;gap:7px;margin:2px 0 0;padding:0;list-style:none}
.card-specs li{display:flex;justify-content:space-between;gap:12px;min-width:0;font-size:.8rem;color:var(--muted);border-bottom:1px solid var(--line-soft);padding-bottom:7px}
.card-specs .k{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:0 1 auto}
.card-specs li:last-child{border-bottom:0}
.card-specs .v{color:var(--ink-2);text-align:right;font-weight:500;max-width:64%;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:0 1 auto}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px}

/* category tiles */
.cat-card{position:relative;display:block;border:1px solid var(--line-soft);border-radius:var(--radius);overflow:hidden;background:var(--panel);transition:border-color var(--t),transform var(--t),box-shadow var(--t)}
.cat-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 26px 60px -30px rgba(0,0,0,.9)}
.cat-card .tile img{aspect-ratio:16/10;padding:9% 14%}
.cat-card .cat-body{padding:20px 22px 22px}
.cat-card h3{margin-bottom:6px}
.cat-card p{margin:0;font-size:.84rem;color:var(--muted)}
.cat-card .count{position:absolute;top:14px;right:14px;font-size:.68rem;font-weight:700;letter-spacing:.08em;color:var(--ink-2);background:rgba(5,9,15,.55);border:1px solid var(--line-soft);padding:4px 9px;border-radius:99px;backdrop-filter:blur(4px)}

/* feature blocks */
.feature{padding:28px;border:1px solid var(--line-soft);border-radius:var(--radius);background:linear-gradient(180deg,var(--panel),rgba(12,22,34,.45));transition:border-color var(--t),transform var(--t)}
.feature:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.feature .ico{width:38px;height:38px;color:var(--accent);margin-bottom:20px}
.feature h3{margin-bottom:8px}
.feature p{margin:0;font-size:.9rem;color:var(--muted)}
.num-list{counter-reset:step;display:grid;gap:0;margin:0;padding:0;list-style:none}
.num-list li{counter-increment:step;display:grid;grid-template-columns:64px 1fr;gap:24px;padding:26px 0;border-top:1px solid var(--line-soft)}
.num-list li::before{content:counter(step,decimal-leading-zero);font-size:1.05rem;font-weight:600;color:var(--accent);letter-spacing:.04em}
.num-list h3{margin-bottom:6px}
.num-list p{margin:0;font-size:.9rem;color:var(--muted)}

/* checklists */
.checks{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.checks li{position:relative;padding-left:30px;font-size:.92rem;color:var(--ink-2);line-height:1.6}
.checks li::before{
  content:'';position:absolute;left:0;top:.45em;width:16px;height:16px;border-radius:50%;
  border:1px solid rgba(62,210,232,.45);background:
    linear-gradient(transparent,transparent) padding-box,rgba(62,210,232,.12);
}
.checks li::after{content:'';position:absolute;left:5px;top:calc(.45em + 4px);width:6px;height:3px;border-left:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);transform:rotate(-45deg)}

/* ---------------------------------------------------------------- tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line-soft);border-radius:var(--radius);background:var(--panel)}
table.data{font-size:.88rem}
table.data caption{text-align:left;padding:16px 20px;color:var(--muted);font-size:.82rem;border-bottom:1px solid var(--line-soft)}
table.data th,table.data td{padding:14px 20px;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
table.data thead th{
  background:rgba(150,186,216,.05);color:var(--ink);font-weight:600;font-size:.76rem;
  letter-spacing:.12em;text-transform:uppercase;white-space:nowrap;
}
table.data tbody th{color:var(--ink-2);font-weight:500;width:34%}
table.data tbody tr:last-child th,table.data tbody tr:last-child td{border-bottom:0}
table.data tbody tr{transition:background var(--t-fast)}
table.data tbody tr:hover{background:rgba(150,186,216,.035)}
table.data td{color:var(--muted)}

/* ------------------------------------------------------------------- faq */
.faq-list{border-top:1px solid var(--line-soft)}
.faq-list details{border-bottom:1px solid var(--line-soft)}
.faq-list summary{
  display:flex;justify-content:space-between;gap:24px;align-items:flex-start;
  padding:22px 0;cursor:pointer;list-style:none;font-size:1.02rem;font-weight:500;color:#fff;
  transition:color var(--t);
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:'';flex:none;width:13px;height:13px;margin-top:7px;
  border-right:1.5px solid var(--accent);border-bottom:1.5px solid var(--accent);
  transform:rotate(45deg);transition:transform var(--t);
}
.faq-list details[open] summary::after{transform:rotate(-135deg)}
.faq-list summary:hover{color:var(--accent)}
.faq-list .answer{padding:0 0 24px;max-width:78ch}
.faq-list .answer p{margin:0 0 .9em;color:var(--muted);font-size:.94rem}
.faq-list .answer p:last-child{margin-bottom:0}

/* ------------------------------------------------------------------- cta */
.cta{position:relative;overflow:hidden;border-radius:var(--radius-l);background:linear-gradient(120deg,#0B2430,#0A1725 58%,#0B1420);border:1px solid var(--line);padding:clamp(34px,5vw,62px)}
.cta::before{content:'';position:absolute;width:520px;height:520px;right:-140px;top:-220px;border-radius:50%;background:radial-gradient(circle,rgba(62,210,232,.18),transparent 65%)}
.cta-inner{position:relative;display:flex;justify-content:space-between;align-items:center;gap:36px;flex-wrap:wrap}
.cta h2{margin-bottom:10px}
.cta p{margin:0;color:var(--ink-2);max-width:58ch}

/* ---------------------------------------------------------------- footer */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line-soft);padding-block:clamp(48px,6vw,84px) 0}
.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:clamp(26px,4vw,60px)}
.footer-grid h2{font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:18px;font-weight:700}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:.88rem;color:var(--muted);transition:color var(--t),transform var(--t)}
.footer-links a:hover{color:var(--accent)}
.footer-brand img{height:34px;margin-bottom:20px}
.footer-brand p{font-size:.88rem;color:var(--muted);max-width:38ch}
.footer-contact{display:grid;gap:8px;margin-top:20px;font-size:.88rem}
.footer-contact a{color:var(--ink-2)}
.footer-contact a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-top:clamp(40px,5vw,64px);padding-block:24px;border-top:1px solid var(--line-soft);font-size:.8rem;color:var(--faint)}
.footer-bottom a{color:var(--faint)}
.footer-bottom a:hover{color:var(--accent)}

/* ------------------------------------------------------------- utilities */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
.glow{position:relative}
.glow::before{
  content:'';position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  background:linear-gradient(140deg,rgba(62,210,232,.4),transparent 42%);
  -webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);
  -webkit-mask-composite:xor;mask-composite:exclude;padding:1px;opacity:0;transition:opacity var(--t);
}
.glow:hover::before{opacity:1}

@media(max-width:1000px){
  .g-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split,.split-wide{grid-template-columns:minmax(0,1fr);gap:34px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:620px){
  body{font-size:15px}
  .g-2,.g-3,.g-4{grid-template-columns:minmax(0,1fr)}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .num-list li{grid-template-columns:40px 1fr;gap:16px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}

/* ------------------------------------------------------ product + story cards */
.card-tags{display:flex;gap:8px;flex-wrap:wrap}
.product-card .tile,.cat-card .tile{display:block;position:relative}
.product-card h3{font-size:1rem;font-weight:500;line-height:1.4;letter-spacing:-.005em;min-height:2.8em;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.mini-check{display:inline-flex;align-items:center;gap:8px;font-size:.78rem;color:var(--muted);cursor:pointer;user-select:none}
.mini-check input{
  appearance:none;width:15px;height:15px;border:1px solid var(--line-strong);border-radius:3px;
  background:transparent;cursor:pointer;position:relative;transition:all var(--t-fast);flex:none;
}
.mini-check input:checked{background:var(--accent);border-color:var(--accent)}
.mini-check input:checked::after{
  content:'';position:absolute;left:4.5px;top:1.5px;width:4px;height:8px;
  border-right:2px solid var(--accent-ink);border-bottom:2px solid var(--accent-ink);transform:rotate(42deg);
}
.mini-check:hover{color:var(--ink-2)}
.story-card .story-media{display:block;overflow:hidden;background:var(--panel-2)}
.story-card .story-media img{aspect-ratio:16/10;object-fit:cover;width:100%;transition:transform var(--t-slow);opacity:.9}
.story-card:hover .story-media img{transform:scale(1.05);opacity:1}
.story-card h3{font-size:1.15rem}
.story-card .card-body{gap:12px}

/* hero stats band + media frame */
.hero-stats-band{background:var(--bg);border-bottom:1px solid var(--line-soft)}
.media-frame{position:relative;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line-soft)}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media-frame .tiny{position:absolute;left:16px;bottom:12px;margin:0;color:rgba(234,242,249,.7);text-shadow:0 1px 3px rgba(0,0,0,.7)}

/* ------------------------------------------------------------- catalogue */
.catalog-filters{
  position:sticky;top:76px;z-index:40;margin-bottom:clamp(24px,3vw,38px);
  background:rgba(8,15,24,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--line-soft);border-radius:var(--radius);padding:18px 20px;
}
.filter-search{position:relative;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.filter-search input{min-width:0}
.filter-search .search-ico{position:absolute;left:14px;width:19px;height:19px;color:var(--faint);pointer-events:none}
.filter-search input{
  flex:1;padding:13px 16px 13px 44px;border-radius:var(--radius-s);border:1px solid var(--line);
  background:rgba(5,9,15,.6);color:var(--ink);font-size:.92rem;transition:border-color var(--t),background var(--t);
}
.filter-search input::placeholder{color:var(--faint)}
.filter-search input:focus{outline:none;border-color:var(--accent);background:rgba(5,9,15,.9)}
.filter-reset{background:none;border:0;color:var(--muted);font-size:.82rem;cursor:pointer;padding:8px 4px;transition:color var(--t)}
.filter-reset:hover{color:var(--accent)}
.filter-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px 28px;margin-top:16px}
.filter-group h3{font-size:.68rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.pills{display:flex;flex-wrap:wrap;gap:7px}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:99px;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:var(--ink-2);font-size:.78rem;font-weight:500;
  transition:all var(--t-fast);
}
.pill:hover{border-color:var(--line-strong);color:#fff}
.pill.is-on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
.pill-n{font-size:.68rem;opacity:.65}
.filter-status{margin:14px 0 0;font-size:.82rem;color:var(--muted)}
.filter-status strong{color:var(--accent)}
.catalog-item{min-width:0}
.catalog-item.is-hidden{display:none}
.catalog-empty{text-align:center;padding:70px 20px;border:1px dashed var(--line);border-radius:var(--radius)}
.catalog-empty h3{margin-bottom:10px}
@media(max-width:1080px){.catalog-filters{position:static}}
@media(max-width:620px){.catalog-filters{padding:14px}.filter-search .search-ico{top:16px}.filter-search input{flex:1 1 100%}.filter-reset{margin-left:auto}}

/* compare tray */
.compare-tray{
  position:fixed;left:0;right:0;bottom:0;z-index:80;background:rgba(8,15,24,.96);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-top:1px solid var(--line);
  transform:translateY(100%);transition:transform var(--t);
}
.compare-tray.is-on{transform:none}
.tray-inner{display:flex;align-items:center;gap:20px;padding-block:14px;flex-wrap:wrap}
.tray-items{display:flex;gap:10px;flex:1;flex-wrap:wrap;min-width:0}
.tray-chip{display:inline-flex;align-items:center;gap:8px;padding:7px 10px;border:1px solid var(--line);border-radius:var(--radius-s);font-size:.78rem;color:var(--ink-2);max-width:260px}
.tray-chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tray-chip button{background:none;border:0;color:var(--faint);cursor:pointer;font-size:1rem;line-height:1;padding:0 2px}
.tray-chip button:hover{color:var(--accent)}
.tray-actions{display:flex;align-items:center;gap:12px}
@media(max-width:620px){.tray-actions{width:100%;justify-content:space-between}}

/* --------------------------------------------------------- product detail */
.product-hero{padding-block:clamp(34px,4.5vw,62px) clamp(30px,4vw,54px);background:
  radial-gradient(80% 60% at 20% 0%,rgba(62,210,232,.07),transparent 60%),var(--bg)}
.p-hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:clamp(28px,4.5vw,72px);align-items:start}
.p-gallery{position:sticky;top:104px}
.g-stage{position:relative;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line-soft);background:
  radial-gradient(70% 60% at 50% 42%,rgba(62,210,232,.13),transparent 65%),linear-gradient(180deg,var(--panel-2),var(--panel))}
.g-frame{margin:0;display:none;position:relative}
.g-frame.is-active{display:block}
.g-frame img{width:100%;aspect-ratio:1/1;object-fit:contain;padding:6%}
.g-frame.is-cut img{filter:drop-shadow(0 26px 34px rgba(0,0,0,.55))}
.g-frame:not(.is-cut) img{padding:0;background:#fff}
.g-frame figcaption{position:absolute;left:16px;bottom:12px;color:var(--faint);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase}
.g-frame:not(.is-cut) figcaption{color:#6b7d8f}
.g-thumbs{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.g-thumb{
  width:62px;height:62px;padding:4px;border-radius:6px;overflow:hidden;cursor:pointer;
  border:1px solid var(--line);background:linear-gradient(180deg,var(--panel-2),var(--panel));transition:all var(--t-fast);
}
.g-thumb img{width:100%;height:100%;object-fit:contain}
.g-thumb:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.g-thumb.is-active{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.p-intro h1{font-size:clamp(1.8rem,3.1vw,2.6rem);margin-bottom:12px}
.p-intro .eyebrow a{color:inherit}
.p-fulltitle{font-size:.82rem;line-height:1.6;color:var(--faint);border-left:2px solid var(--line-strong);padding-left:12px;margin:0 0 20px}
.p-highlights{margin:22px 0}
.key-specs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--radius);overflow:hidden;margin:26px 0}
.key-specs div{background:var(--panel);padding:14px 16px}
.key-specs dt{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.key-specs dd{margin:0;font-size:.92rem;font-weight:500;color:var(--ink)}
.p-actions{display:grid;gap:12px}
.p-actions-row{display:flex;gap:10px;flex-wrap:wrap}
.p-actions-row .btn{flex:1}
.p-trust{list-style:none;margin:26px 0 0;padding:0;display:grid;gap:12px}
.p-trust li{display:flex;gap:12px;align-items:flex-start;font-size:.85rem;color:var(--muted)}
.p-trust .ico{width:19px;height:19px;color:var(--accent);flex:none;margin-top:2px}
.sub-h{font-size:.78rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:16px}

.section-nav{position:sticky;top:76px;z-index:35;background:rgba(8,15,24,.94);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-block:1px solid var(--line-soft)}
.section-nav .wrap{display:flex;gap:clamp(14px,2.4vw,34px);overflow-x:auto;scrollbar-width:none}
.section-nav .wrap::-webkit-scrollbar{display:none}
.section-nav a{padding:16px 0;font-size:.82rem;font-weight:500;color:var(--muted);white-space:nowrap;border-bottom:2px solid transparent;transition:all var(--t)}
.section-nav a:hover,.section-nav a.is-active{color:var(--accent);border-color:var(--accent)}

.spec-split{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:clamp(22px,3vw,44px);align-items:start}
.spec-aside{border:1px solid var(--line-soft);border-radius:var(--radius);padding:24px;background:var(--panel)}
.aside-links{display:grid;gap:12px;margin-top:18px}
.order-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(24px,3.5vw,56px)}
.order-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}
.order-list div{border:1px solid var(--line-soft);border-radius:var(--radius-s);padding:14px 16px;background:var(--panel)}
.order-list dt{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.order-list dd{margin:0;font-size:.9rem;font-weight:500}
.detail-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(16px,2vw,26px)}
.detail-card{margin:0}
.detail-card .zoom{display:block;width:100%;padding:0;border:1px solid var(--line-soft);border-radius:var(--radius);overflow:hidden;background:#fff;cursor:zoom-in;position:relative}
.detail-card img{width:100%;aspect-ratio:1/1;object-fit:contain}
.zoom-badge{position:absolute;right:12px;bottom:12px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:rgba(5,9,15,.72);color:#fff;opacity:0;transition:opacity var(--t)}
.detail-card .zoom:hover .zoom-badge{opacity:1}
.lightbox{position:fixed;inset:0;z-index:120;background:rgba(3,7,12,.94);display:grid;place-items:center;padding:clamp(16px,4vw,60px)}
.lightbox img{max-width:min(1100px,92vw);max-height:88vh;object-fit:contain;border-radius:var(--radius);background:#fff}
.lb-close{position:absolute;top:22px;right:26px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:rgba(12,22,34,.8);color:#fff;font-size:1.5rem;line-height:1;cursor:pointer}
.lb-close:hover{border-color:var(--accent);color:var(--accent)}
@media(max-width:980px){
  .p-hero-grid,.spec-split,.order-grid{grid-template-columns:minmax(0,1fr)}
  .p-gallery{position:static}
  .order-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .detail-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:620px){
  .key-specs,.order-list,.detail-grid{grid-template-columns:minmax(0,1fr)}
  .g-thumb{width:52px;height:52px}
}

/* ------------------------------------------------------ category + editorial */
.fact-panel{border:1px solid var(--line-soft);border-radius:var(--radius);padding:26px;background:var(--panel)}
.fact-list{display:grid;gap:14px;margin:0 0 20px}
.fact-list div{border-bottom:1px solid var(--line-soft);padding-bottom:12px}
.fact-list div:last-child{border-bottom:0;padding-bottom:0}
.fact-list dt{font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:5px}
.fact-list dd{margin:0;font-size:.92rem;color:var(--ink)}
.rel-cats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.rel-cat{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:18px 22px;border:1px solid var(--line-soft);border-radius:var(--radius);background:var(--panel);transition:all var(--t)}
.rel-cat:hover{border-color:var(--accent);transform:translateY(-3px)}
.rel-cat span:first-child{font-weight:500}

.article-hero .hero-inner{max-width:900px}
.article-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:.8rem;color:var(--faint);margin:22px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:clamp(30px,5vw,76px);padding-block:clamp(44px,6vw,84px);align-items:start}
.article-body{min-width:0;max-width:78ch;font-size:1.02rem}
.article-body h2{font-size:clamp(1.4rem,2.2vw,1.95rem);margin:52px 0 18px;display:flex;gap:16px;align-items:baseline}
.article-body section:first-of-type h2{margin-top:0}
.s-num{font-size:.78rem;font-weight:700;letter-spacing:.1em;color:var(--accent);flex:none}
.article-body p{color:var(--ink-2);line-height:1.78}
.takeaway{border-left:2px solid var(--accent);background:linear-gradient(90deg,rgba(62,210,232,.07),transparent);padding:20px 24px;border-radius:0 var(--radius) var(--radius) 0;margin-bottom:44px}
.takeaway strong{display:block;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:8px}
.takeaway p{margin:0;color:var(--ink)}
.inline-media{margin:26px 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-soft)}
.article-end{margin-top:52px;padding-top:28px;border-top:1px solid var(--line-soft);display:grid;gap:20px;justify-items:start}
.article-aside{position:sticky;top:100px;display:grid;gap:22px}
.toc{display:grid;gap:2px;border-left:1px solid var(--line-soft);padding-left:18px}
.toc a{font-size:.84rem;color:var(--muted);padding:6px 0;transition:color var(--t)}
.toc a:hover,.toc a.is-active{color:var(--accent)}
.aside-card{border:1px solid var(--line-soft);border-radius:var(--radius);padding:22px;background:var(--panel);display:grid;gap:16px}
.aside-products{display:grid;gap:10px}
.aside-product{display:flex;align-items:center;gap:12px;font-size:.82rem;color:var(--ink-2);transition:color var(--t)}
.aside-product:hover{color:var(--accent)}
.aside-product img{width:52px;height:52px;object-fit:contain;border-radius:6px;background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line-soft);padding:4px;flex:none}
.lead-story{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,4vw,56px);align-items:center}
.lead-story .lead-media{display:block;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line-soft)}
.lead-story .lead-media img{aspect-ratio:16/10;object-fit:cover;transition:transform var(--t-slow)}
.lead-story:hover .lead-media img{transform:scale(1.03)}
.lead-story h2{margin:14px 0 14px;font-size:clamp(1.5rem,2.6vw,2.2rem)}
.topic-bar{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:30px}
.story-item.is-hidden{display:none}
@media(max-width:980px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-aside{position:static;order:-1}
  .lead-story{grid-template-columns:minmax(0,1fr)}
}

/* ------------------------------------------------------------ forms + misc */
.f-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 20px}
.f-grid-3{grid-template-columns:repeat(3,1fr)}
.field{display:grid;gap:8px}
.field label{font-size:.78rem;font-weight:600;letter-spacing:.04em;color:var(--ink-2)}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-s);border:1px solid var(--line);
  background:rgba(5,9,15,.55);color:var(--ink);font-size:.92rem;transition:border-color var(--t),background var(--t);
}
.field textarea{resize:vertical;min-height:130px;line-height:1.6}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:rgba(5,9,15,.85)}
.field input::placeholder,.field textarea::placeholder{color:var(--faint)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 19px) 51%,calc(100% - 14px) 51%;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:38px}
.inquiry-form{display:grid;gap:18px;margin-top:26px}
.check-inline{display:flex!important;gap:10px;align-items:flex-start;font-size:.84rem;font-weight:400!important;color:var(--muted)}
.check-inline input{width:16px;height:16px;flex:none;margin-top:3px;accent-color:var(--accent)}
.check-inline a{color:var(--accent)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:4px}
.form-status{padding:14px 18px;border-radius:var(--radius-s);border:1px solid var(--line);background:var(--panel);font-size:.9rem}
.form-status.is-ok{border-color:rgba(62,210,232,.5);background:rgba(62,210,232,.09);color:#BDF2FA}
.form-status.is-bad{border-color:rgba(255,138,138,.45);background:rgba(255,110,110,.08);color:#FFD5D5}
.contact-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:clamp(28px,4.5vw,70px);align-items:start}
.contact-aside{display:grid;gap:18px;position:sticky;top:100px}
.contact-lines{display:grid;gap:14px}
.contact-lines a,.contact-lines p{display:flex;gap:12px;align-items:flex-start;margin:0;font-size:.88rem;color:var(--ink-2)}
.contact-lines .ico{width:19px;height:19px;color:var(--accent);flex:none;margin-top:2px}
.contact-lines a:hover{color:var(--accent)}
.dept{border:1px solid var(--line-soft);border-radius:var(--radius);padding:22px;background:var(--panel)}
.dept h3{font-size:1rem;margin-bottom:8px}
.dept p{font-size:.85rem;color:var(--muted);margin-bottom:12px}
.map-frame{border:1px solid var(--line-soft);border-radius:var(--radius-l);padding:24px;background:var(--panel)}
.map-frame img{opacity:.55;filter:invert(1) hue-rotate(160deg)}
.verify{border-left:2px solid var(--accent);padding-left:12px;margin-top:20px}

.stat-row{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:var(--line-soft);border:1px solid var(--line-soft);border-radius:var(--radius);overflow:hidden;margin-top:clamp(30px,4vw,54px)}
.stat{background:var(--panel);padding:24px 20px}
.stat strong{display:block;font-size:clamp(1.25rem,2vw,1.7rem);font-weight:300;color:#fff;letter-spacing:-.02em;margin-bottom:6px}
.stat span{font-size:.76rem;color:var(--muted)}
.timeline{list-style:none;margin:0;padding:0}
.timeline li{display:grid;grid-template-columns:110px 1fr;gap:26px;padding:26px 0;border-top:1px solid var(--line-soft)}
.timeline b{font-size:1.05rem;font-weight:500;color:var(--accent)}
.timeline h3{margin-bottom:6px}
.timeline p{margin:0;font-size:.9rem;color:var(--muted)}

.chip-nav{display:flex;gap:10px;flex-wrap:wrap}
.chip-nav a{padding:9px 16px;border:1px solid var(--line);border-radius:99px;font-size:.8rem;color:var(--ink-2);transition:all var(--t-fast)}
.chip-nav a:hover{border-color:var(--accent);color:var(--accent);background:rgba(62,210,232,.07)}

.glossary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 46px;margin:0}
.term{border-top:1px solid var(--line-soft);padding-top:18px}
.term dt{font-weight:600;font-size:1rem;color:#fff;margin-bottom:8px}
.term dd{margin:0;font-size:.88rem;line-height:1.7;color:var(--muted)}
.term .tiny{display:block;margin-top:8px;color:var(--faint)}
.glossary-search{position:relative;display:flex;align-items:center;margin-top:30px;max-width:440px}
.glossary-search .search-ico{position:absolute;left:14px;width:19px;height:19px;color:var(--faint)}
.glossary-search input{width:100%;padding:13px 16px 13px 44px;border-radius:var(--radius-s);border:1px solid var(--line);background:rgba(5,9,15,.6);color:var(--ink);font-size:.92rem}
.glossary-search input:focus{outline:none;border-color:var(--accent)}

.tool-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,.55fr);gap:clamp(24px,3.5vw,48px);align-items:start}
.tool-panel{border:1px solid var(--line-soft);border-radius:var(--radius-l);padding:clamp(24px,3vw,36px);background:var(--panel)}
.tool-panel h2{margin-bottom:10px;font-size:clamp(1.3rem,2vw,1.7rem)}
.tool-output{margin-top:26px;border-top:1px solid var(--line-soft);padding-top:22px}
.lb-verdict{font-size:1.5rem;font-weight:300;margin:0 0 16px;letter-spacing:-.02em}
.lb-verdict.is-ok{color:#6EE7B7}
.lb-verdict.is-warn{color:#FBBF77}
.lb-verdict.is-bad{color:#FF9B9B}
.lb-rows{display:grid;gap:8px;margin:0 0 16px}
.lb-rows div{display:flex;justify-content:space-between;gap:18px;font-size:.86rem;border-bottom:1px solid var(--line-soft);padding-bottom:8px}
.lb-rows dt{color:var(--muted)}
.lb-rows dd{margin:0;color:var(--ink);text-align:right}
.search-panel{max-width:760px}
.search-results{display:grid;gap:0;margin-top:30px}
.search-hit{border-top:1px solid var(--line-soft);padding:20px 0;display:grid;gap:8px;justify-items:start}
.search-hit h3{font-size:1.08rem}
.search-hit h3 a:hover{color:var(--accent)}
.compare-shell{min-height:200px}
.compare-empty{text-align:center;padding:70px 24px;border:1px dashed var(--line);border-radius:var(--radius);display:grid;gap:12px;justify-items:center}
.compare-table th img{width:84px;height:84px;object-fit:contain;margin-bottom:10px}
.compare-table thead th{vertical-align:top;min-width:190px}
.compare-table thead th a{display:block;font-size:.85rem;color:#fff;margin-bottom:8px;text-transform:none;letter-spacing:0}
.col-remove{background:none;border:0;color:var(--faint);font-size:.72rem;cursor:pointer;text-decoration:underline;padding:0}
.col-remove:hover{color:var(--accent)}
.inq-row{display:grid;grid-template-columns:70px 1fr 90px auto;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line-soft)}
.inq-row img{width:70px;height:70px;object-fit:contain;background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line-soft);border-radius:8px;padding:6px}
.inq-row .qty{width:90px;padding:9px 10px;border-radius:var(--radius-s);border:1px solid var(--line);background:rgba(5,9,15,.55);color:var(--ink)}
.inquiry-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.policy h2{font-size:1.25rem;margin:36px 0 12px}
.policy section:first-child h2{margin-top:0}
.btn.is-added{--btn-bg:rgba(62,210,232,.14);--btn-ink:var(--accent);border-color:rgba(62,210,232,.4);box-shadow:none}
@media(max-width:1000px){
  .contact-grid,.tool-grid{grid-template-columns:minmax(0,1fr)}
  .contact-aside{position:static}
  .stat-row{grid-template-columns:repeat(3,1fr)}
  .glossary{grid-template-columns:minmax(0,1fr)}
  .f-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:620px){
  .f-grid,.f-grid-3{grid-template-columns:minmax(0,1fr)}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .timeline li{grid-template-columns:minmax(0,1fr);gap:6px}
  .inq-row{grid-template-columns:56px 1fr;gap:12px}
  .inq-row .qty{width:80px}
}

/* ---------------------------------------------------------- mega menu */
.has-mega{position:static;display:flex;align-items:center}
.mega-trigger{display:inline-flex;align-items:center}
.mega-toggle{
  display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;margin-left:2px;
  padding:0;border:0;background:none;color:var(--ink-2);cursor:pointer;border-radius:4px;
}
.mega-toggle:hover{color:#fff}
.mega-toggle .caret{transition:transform var(--t);opacity:.75}
.has-mega.is-open .mega-toggle .caret{transform:rotate(180deg);opacity:1}
.has-mega.is-open .mega-trigger{color:#fff}
.has-mega.is-open .mega-trigger::after{transform:scaleX(1)}
.mega{
  position:absolute;left:0;right:0;top:100%;z-index:95;
  background:#080F18;
  border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.95);
  opacity:0;transform:translateY(-8px);transition:opacity var(--t),transform var(--t);
}
.mega.is-open{opacity:1;transform:none}
.mega-inner{display:grid;grid-template-columns:290px minmax(0,1fr) 250px;gap:0;padding-block:26px 30px}
.mega-title{font-size:.68rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin:0 0 14px}
.mega-cats{padding-right:26px;border-right:1px solid var(--line-soft)}
.mega-cat{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:9px 12px;border-radius:var(--radius-s);font-size:.88rem;color:var(--ink-2);
  transition:background var(--t-fast),color var(--t-fast);
}
.mega-cat:hover,.mega-cat.is-active{background:rgba(62,210,232,.09);color:#fff}
.mega-cat.is-active .mega-cat-name{font-weight:600}
.mega-cat-meta{font-size:.72rem;color:var(--faint)}
.mega-cat:hover .mega-cat-meta,.mega-cat.is-active .mega-cat-meta{color:var(--accent)}
.mega-all{display:inline-flex;align-items:center;gap:8px;margin:16px 0 0 12px;font-size:.82rem;font-weight:600;color:var(--accent)}
.mega-all:hover{gap:12px}
.mega-detail{padding-inline:34px;min-height:250px}
.mega-panel{display:none}
.mega-panel.is-active{display:block;animation:megaIn .22s ease}
@keyframes megaIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.mega-lede{font-size:.84rem;color:var(--muted);margin:0 0 16px}
.mega-products{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:16px}
.mega-product{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--line-soft);border-radius:var(--radius-s);transition:border-color var(--t),background var(--t)}
.mega-product:hover{border-color:var(--accent);background:rgba(62,210,232,.06)}
.mega-thumb{flex:none;width:52px;height:52px;border-radius:6px;background:linear-gradient(180deg,var(--panel-2),var(--panel));display:grid;place-items:center;overflow:hidden}
.mega-thumb img{width:100%;height:100%;object-fit:contain;padding:5px}
.mega-product-text{display:grid;gap:3px;min-width:0}
.mega-product-text strong{font-size:.8rem;font-weight:500;color:var(--ink);line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mega-product-text span{font-size:.72rem;color:var(--faint)}
.mega-aside{padding-left:26px;border-left:1px solid var(--line-soft);display:grid;gap:12px;align-content:start}
.mega-aside .link{font-size:.82rem}
.mega-aside p.small{margin:0 0 4px}

@media(max-width:820px){
  .nav-cta{display:none}
  .nav{height:66px;gap:10px}
  .brand img{height:28px}
  .nav-main{inset:66px 0 auto}
}
@media(max-width:1080px){
  .has-mega{display:block}
  .has-mega{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line-soft)}
  .has-mega .mega-trigger{flex:1;border-bottom:0}
  .mega-toggle{width:46px;height:46px;margin:0}
  .mega{flex-basis:100%}
  .mega{
    position:static;background:transparent;border:0;box-shadow:none;backdrop-filter:none;-webkit-backdrop-filter:none;
    opacity:1;transform:none;padding:0;
  }
  .mega-inner{display:block;padding:4px 0 14px}
  .mega-cats{padding:0;border:0}
  .mega-cat{padding:11px 14px;background:rgba(150,186,216,.05);margin-bottom:6px;border-radius:var(--radius-s)}
  .mega-cat-meta{display:inline-block}
  .mega-detail,.mega-aside{display:none}
  .mega-all{margin-left:14px}
  .mega-title{margin-top:6px}
}