@charset "utf-8";
/* ============================================================
   QIANYI ABRASIVE MATERIALS — Design System
   Deep Black · Electric Blue · Signal Yellow — Bright Industrial Tech
   ============================================================ */

@view-transition { navigation: auto; }

:root{
  --bg-0:#0B0F1A;            /* page background — lifted slate */
  --bg-1:#111827;            /* raised surface */
  --bg-2:#161E2E;            /* hover surface */
  --brand:#1F6FEB;           /* deep-sea tech blue */
  --brand-soft:rgba(31,111,235,.14);
  --accent:#FFD43B;          /* premium amber — highlight accent */
  --blue-soft:#8FB4FF;       /* light tech blue — secondary accent */
  --ink:#F4F8FF;             /* alumina white */
  --ink-2:rgba(244,248,255,.90);  /* lifted from .72 */
  --ink-3:rgba(168,184,210,.78);  /* lifted from .48 */
  --line:rgba(142,167,214,.20);   /* lifted from .14 */
  --line-glow:rgba(255,212,67,.45);
  --glass:rgba(17,24,38,.46);     /* lighter than .55 */
  --glass-2:rgba(17,24,38,.64);   /* lighter than .72 */
  --radius:18px;
  --radius-lg:24px;
  --font:'Inter','Helvetica Neue',Helvetica,Arial,sans-serif;
  --shadow-card:0 24px 60px -24px rgba(0,0,0,.42);  /* softer from .6 */
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
body{
  font-family:var(--font);
  background:
    radial-gradient(circle 800px at 50% 0%, rgba(31,111,235,.08), transparent 70%),
    radial-gradient(circle 600px at 20% 100%, rgba(255,212,67,.06), transparent 60%),
    radial-gradient(circle 500px at 80% 80%, rgba(31,111,235,.05), transparent 65%),
    var(--bg-0);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(31,111,235,.45);color:#fff}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg-0)}
::-webkit-scrollbar-thumb{background:#1D2A44;border-radius:8px;border:2px solid var(--bg-0)}
/* height:auto is load-bearing. Every <img> carries width/height attributes to
   prevent layout shift, but those become CSS presentational hints — a definite
   height overrides `aspect-ratio`, which would stretch gallery and split
   figures. Rules that need a real height (hero, phead, prod-fig, band, brand)
   set it explicitly and win over this. */
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.container{width:min(1200px,92%);margin-inline:auto}
.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:1.5rem;top:-4rem;z-index:200;background:var(--accent);color:#0A1120;
  padding:.7rem 1.2rem;border-radius:10px;font-weight:700;font-size:.88rem;transition:top .2s}
.skip-link:focus{top:1rem}
/* ---------- Typography ---------- */
h1,h2,h3,h4{letter-spacing:-.02em;line-height:1.12;font-weight:800;text-wrap:balance}
h1{font-size:clamp(2.5rem,6vw,4.4rem);font-weight:900;letter-spacing:-.03em}
h2{font-size:clamp(1.9rem,3.4vw,2.75rem)}
h3{font-size:1.18rem}
p{text-wrap:pretty}
.grad{
  background:linear-gradient(92deg,#FFE58A 0%,var(--accent) 48%,#FFB020 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.lead{color:var(--ink-2);font-size:clamp(1rem,1.6vw,1.18rem)}
.muted{color:var(--ink-2)}
.dim{color:var(--ink-3)}
.amber{color:var(--accent)}
.mono,.num{font-variant-numeric:tabular-nums}
.eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;
  font-size:.75rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--accent);
}
.eyebrow::before{content:"";width:28px;height:1px;background:linear-gradient(90deg,var(--accent),transparent)}
.eyebrow.plain::before{display:none}

/* ---------- Glass ---------- */
.glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line);
  border-radius:var(--radius);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.9rem 1.7rem;border-radius:12px;font-weight:600;font-size:.95rem;
  border:1px solid transparent;cursor:pointer;font-family:inherit;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),#1558C7);
  color:#fff;box-shadow:0 8px 28px -8px rgba(31,111,235,.55);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px -8px rgba(31,111,235,.7)}
.btn-ghost{
  background:rgba(244,248,255,.04);color:var(--ink);
  border-color:rgba(244,248,255,.16);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--line-glow);background:rgba(255,212,67,.07)}
.btn-sm{padding:.62rem 1.15rem;font-size:.84rem;border-radius:10px}
/* ============================================================
   HEADER
   ============================================================ */
.hdr{
  position:sticky;top:0;z-index:100;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
  view-transition-name:site-header;
}
.hdr[data-stuck="true"]{
  background:rgba(10,15,26,.68);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 40px -18px rgba(0,0,0,.8);
}
.hdr-in{display:flex;align-items:center;gap:2.2rem;height:74px}
.brand{display:flex;align-items:center;gap:.75rem;margin-right:auto}
.brand img{width:38px;height:38px;flex:none;object-fit:contain}
.brand-tx{display:flex;flex-direction:column;line-height:1.15}
.brand-tx b{font-size:1.06rem;font-weight:800;letter-spacing:.14em}
.brand-tx span{font-size:.62rem;font-weight:500;letter-spacing:.24em;text-transform:uppercase;color:var(--ink-3)}

.nav ul{display:flex;gap:2rem;list-style:none}
.nav a{
  font-size:.9rem;font-weight:500;color:var(--ink-2);position:relative;padding:.35rem 0;
  transition:color .2s;display:block;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));transition:width .25s ease;
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after{width:100%}
.nav a[aria-current="page"]{color:var(--ink)}
.nav a[aria-current="page"]::after{width:100%}
.hdr-cta{display:flex;align-items:center;gap:1rem}

.nav-btn{display:none;place-items:center;width:42px;height:42px;border-radius:10px;
  background:rgba(244,248,255,.04);border:1px solid var(--line);cursor:pointer;color:var(--ink)}
.nav-btn span{display:block;width:17px;height:2px;background:currentColor;position:relative;
  border-radius:2px;transition:transform .3s ease}
.nav-btn span::before,.nav-btn span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:currentColor;
  border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.nav-btn span::before{top:-6px}
.nav-btn span::after{top:6px}
.nav-btn[aria-expanded="true"] span{transform:rotate(45deg)}
.nav-btn[aria-expanded="true"] span::before{transform:translateY(6px) rotate(-90deg)}
.nav-btn[aria-expanded="true"] span::after{opacity:0}
/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:7.5rem 0 6rem;overflow:hidden;isolation:isolate;
}
.hero-media{position:absolute;inset:0;z-index:-3}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,15,26,.30) 0%,rgba(10,15,26,.12) 45%,var(--bg-0) 96%),
             radial-gradient(70% 60% at 50% 40%,transparent 30%,rgba(10,15,26,.22) 100%);
}
#particles{position:absolute;inset:0;z-index:-2;pointer-events:none;width:100%;height:100%}
.hero-in{text-align:center;max-width:900px;margin-inline:auto;display:grid;gap:0;justify-items:center}
.hero-in > *{max-width:100%}
.badge{
  display:inline-flex;align-items:center;gap:.6rem;
  padding:.5rem 1.1rem;border-radius:999px;
  background:rgba(31,111,235,.12);border:1px solid rgba(31,111,235,.35);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  font-size:.8rem;font-weight:600;letter-spacing:.08em;color:#9CC4FF;
  margin-bottom:1.8rem;
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
@media (prefers-reduced-motion:no-preference){
  .badge .dot{animation:pulse 2.4s ease-in-out infinite}
}
@keyframes pulse{50%{opacity:.35}}
.hero h1{margin-bottom:1.4rem}
.hero h1 .ln{display:block}
.hero .lead{max-width:640px;margin:0 auto 2.6rem}
.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* ---------- Stats strip ----------
   The band spans full width for its rule and backdrop, but the figures sit on
   the same grid as every other section. Equal grid columns, not flex-auto —
   flex sized each cell by its text length, so the columns never lined up. */
.stats{
  border-block:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,15,26,.32),transparent);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.stats-in{display:grid;grid-template-columns:repeat(2,1fr)}
@media (min-width:880px){.stats-in{grid-template-columns:repeat(4,1fr)}}
.stat{
  padding:1.7rem 1.6rem;display:flex;flex-direction:column;justify-content:flex-start;
  border-left:1px solid var(--line);
}
.stat:first-child{border-left:0;padding-left:0}
/* on the 2-up mobile grid, cells 1 and 3 start a row */
@media (max-width:879px){
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line);padding-top:1.5rem}
}
.stat b{display:block;font-size:clamp(1.7rem,2.4vw,2.1rem);font-weight:900;letter-spacing:-.02em;
  line-height:1.1;font-variant-numeric:tabular-nums}
.stat b .u{font-size:.95rem;font-weight:700;color:var(--accent);margin-left:.25rem;letter-spacing:0}
.stat span{font-size:.78rem;color:var(--ink-3);letter-spacing:.08em;display:block;
  margin-top:.45rem;text-wrap:pretty}

/* ---------- Page header (subpages) ---------- */
.phead{position:relative;overflow:hidden;isolation:isolate;padding:9rem 0 4rem;
  border-bottom:1px solid var(--line)}
.phead-media{position:absolute;inset:0;z-index:-2}
.phead-media img{width:100%;height:100%;object-fit:cover}
.phead-media::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,15,26,.40) 0%,rgba(10,15,26,.54) 60%,var(--bg-0) 98%),
             radial-gradient(60% 50% at 20% 20%,rgba(31,111,235,.18),transparent 70%)}
.phead-in{display:grid;gap:1.1rem;max-width:860px;justify-items:start}
.phead h1{font-size:clamp(2rem,4.6vw,3.4rem)}
.crumb{display:flex;flex-wrap:wrap;gap:.45rem;align-items:center;font-size:.8rem;color:var(--ink-3);font-weight:500}
.crumb a:hover{color:var(--accent)}
.crumb svg{width:12px;height:12px;opacity:.55}
/* ============================================================
   SECTIONS
   ============================================================ */
.sec{padding:5.5rem 0;position:relative}
.sec-tight{padding:4rem 0;position:relative}
/* faint hairline grid on alternating sections */
.grid-bg{isolation:isolate}
.grid-bg::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(rgba(142,167,214,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(142,167,214,.07) 1px,transparent 1px);
  background-size:80px 80px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 25%,transparent 75%);
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 25%,transparent 75%);
}
.sec-head{max-width:680px;display:grid;gap:1rem}
.sec-head h2{margin:.4rem 0 0}
.sec-head p{color:var(--ink-2);font-size:1.05rem}
.head-row{display:grid;gap:2rem;align-items:end;grid-template-columns:1fr}
@media (min-width:900px){.head-row{grid-template-columns:1.5fr .8fr}}
.rule{border:0;height:1px;background:var(--line)}
.chips{display:flex;flex-wrap:wrap;gap:.6rem}
.chip{
  font-size:.74rem;font-weight:600;letter-spacing:.06em;padding:.4rem .8rem;border-radius:999px;
  background:rgba(31,111,235,.1);border:1px solid rgba(31,111,235,.3);color:#9CC4FF;
  transition:border-color .25s,background .25s;
}
a.chip:hover{border-color:var(--line-glow);background:rgba(255,212,67,.08);color:var(--accent)}

/* ---------- Cards ---------- */
.grid{display:grid;gap:1.25rem}
.cols-2{grid-template-columns:1fr}
.cols-3{grid-template-columns:1fr}
.cols-4{grid-template-columns:repeat(2,1fr)}
@media (min-width:760px){.cols-2{grid-template-columns:repeat(2,1fr)}.cols-3{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1025px){.cols-4{grid-template-columns:repeat(4,1fr)}}
.card{
  padding:2rem 1.8rem;position:relative;overflow:hidden;display:grid;gap:.6rem;align-content:start;
  background:linear-gradient(135deg, var(--glass) 0%, rgba(17,24,38,.42) 100%);
  border:1px solid var(--line);border-radius:var(--radius);
  -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);
  box-shadow:inset 0 1px 0 0 rgba(255,255,255,.06), var(--shadow-card);
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--line-glow);
  box-shadow:inset 0 1px 0 0 rgba(255,212,67,.15), 0 30px 70px -34px rgba(255,212,67,.28), 0 0 0 1px rgba(255,212,67,.2);
}
.card::before{
  content:"";position:absolute;top:-60px;right:-60px;width:140px;height:140px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,111,235,.28),transparent 70%);pointer-events:none;
  animation:glow-pulse 4s ease-in-out infinite;
}
@keyframes glow-pulse{
  0%,100%{opacity:.6;transform:scale(1)}
  50%{opacity:1;transform:scale(1.15)}
}
.card .ico{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;margin-bottom:.6rem;
  background:var(--brand-soft);border:1px solid rgba(31,111,235,.3);color:var(--accent);
}
.card .ico svg{width:21px;height:21px}
.card h3{font-size:1.05rem;font-weight:700;letter-spacing:.01em}
.card h3 a:hover{color:var(--accent)}
.card p{font-size:.88rem;color:var(--ink-2)}
.card-num{font-size:.72rem;font-weight:700;letter-spacing:.16em;color:var(--accent)}
/* ============================================================
   PRODUCT CARDS
   ============================================================ */
.prods{display:grid;grid-template-columns:1fr;gap:1.5rem}
@media (min-width:820px){.prods{grid-template-columns:1fr 1fr}}
.prod{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(135deg, var(--glass-2) 0%, rgba(17,24,38,.58) 100%);
  -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);
  box-shadow:inset 0 1px 0 0 rgba(255,255,255,.08), var(--shadow-card);
  display:grid;grid-template-rows:auto 1fr;
  transition:border-color .35s ease,box-shadow .35s ease,transform .35s ease;
}
.prod::after{
  content:"";position:absolute;inset:0;opacity:0;pointer-events:none;
  background:radial-gradient(circle 400px at var(--mx,50%) var(--my,50%), rgba(31,111,235,.12), transparent 60%);
  transition:opacity .4s ease;
}
.prod:hover::after{opacity:1}
.prod:hover{
  transform:translateY(-6px);
  border-color:rgba(255,212,67,.5);
  box-shadow:inset 0 1px 0 0 rgba(255,212,67,.18), 0 30px 70px -30px rgba(255,212,67,.32), 0 0 0 1px rgba(255,212,67,.25);
}
.prod-fig{position:relative;height:250px;overflow:hidden}
.prod-fig img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.prod:hover .prod-fig img{transform:scale(1.05)}
.prod-fig::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(10,15,26,.76))}
.prod-code{
  position:absolute;top:1.1rem;left:1.1rem;z-index:2;
  padding:.35rem .8rem;border-radius:8px;font-size:.72rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;
  background:rgba(255,212,67,.12);border:1px solid rgba(255,212,67,.4);color:var(--accent);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.prod-body{padding:1.8rem 2rem 2rem;display:grid;gap:.9rem;align-content:start}
.prod-body h3{font-size:1.45rem;font-weight:800;display:flex;flex-wrap:wrap;gap:.5rem;align-items:baseline}
.prod-body h3 em{font-size:.82rem;color:var(--ink-3);letter-spacing:.12em;font-weight:600;font-style:normal}
.prod-body > p{font-size:.92rem;color:var(--ink-2)}
.prod-kv{display:grid;gap:.55rem}
.prod-kv{grid-template-columns:1fr auto}
.prod-kv dt,.prod-kv dd{
  font-size:.86rem;padding:.6rem .9rem;background:rgba(244,248,255,.035);
  border-block:1px solid var(--line);
}
.prod-kv dt{color:var(--ink-3);border-left:1px solid var(--line);border-radius:10px 0 0 10px}
.prod-kv dd{font-weight:600;text-align:right;color:var(--accent);
  border-right:1px solid var(--line);border-radius:0 10px 10px 0}
.prod-more{
  display:inline-flex;align-items:center;gap:.45rem;font-size:.86rem;font-weight:600;color:var(--accent);
}
.prod-more svg{width:15px;height:15px;transition:transform .25s ease}
.prod:hover .prod-more svg{transform:translateX(4px)}
.prod > a.stretch{position:absolute;inset:0;z-index:3}
/* ---------- Blog articles ---------- */
.articles{display:grid;gap:1.5rem;grid-template-columns:1fr}
@media (min-width:900px){.articles{grid-template-columns:repeat(3,1fr)}}
.article{
  padding:1.9rem;display:grid;gap:1rem;align-content:start;
  background:linear-gradient(135deg, var(--glass) 0%, rgba(17,24,38,.42) 100%);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  -webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);
  box-shadow:inset 0 1px 0 0 rgba(255,255,255,.06), var(--shadow-card);
  transition:border-color .3s ease,transform .3s ease;
}
.article:hover{transform:translateY(-4px);border-color:var(--line-glow)}
.article-meta{display:flex;justify-content:space-between;gap:1rem;font-size:.72rem;
  font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.article-meta span:first-child{color:var(--accent)}
.article h3{font-size:1.28rem}
.article p{font-size:.9rem;color:var(--ink-2)}
.article-outline{
  display:grid;gap:.55rem;margin:0;padding:0 0 0 1.15rem;
  font-size:.85rem;color:var(--ink-2);
}
.article-outline li::marker{color:var(--accent);font-weight:700}
/* ============================================================
   TABLES
   ============================================================ */
.tbl-wrap{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--glass);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.tbl-wrap:has(table){overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:32rem}
caption{
  text-align:left;padding:1.3rem 1.6rem;font-weight:700;font-size:1rem;letter-spacing:.02em;
  background:rgba(31,111,235,.1);border-bottom:1px solid var(--line);color:var(--ink);
}
th,td{padding:1rem 1.6rem;text-align:left;border-bottom:1px solid var(--line)}
thead th{font-size:.75rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);
  background:rgba(244,248,255,.03);white-space:nowrap;font-weight:700}
tbody td{color:var(--ink-2)}
tbody td:first-child{color:var(--ink);font-weight:600}
tbody td.num{font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background .2s}
tbody tr:hover{background:rgba(31,111,235,.06)}

/* ---------- Gallery ---------- */
.gal{display:grid;gap:1.1rem;grid-template-columns:repeat(2,1fr)}
@media (min-width:900px){.gal{grid-template-columns:repeat(4,1fr)}}
.gal figure{
  position:relative;margin:0;overflow:hidden;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--bg-1);
  transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.gal figure:hover{transform:translateY(-5px);border-color:var(--line-glow);
  box-shadow:0 26px 60px -30px rgba(255,212,67,.22)}
.gal img{width:100%;aspect-ratio:1;object-fit:cover;transition:transform .6s ease}
.gal.tall img{aspect-ratio:4/5}
/* A lone specimen photo reads as intentional at its own size rather than
   stretching across a 4-column grid (and past its native resolution). */
.gal:has(> figure:only-child){grid-template-columns:minmax(0,320px)}
.gal figure:hover img{transform:scale(1.06)}
.gal figcaption{
  position:absolute;inset:auto 0 0 0;padding:.9rem 1rem .8rem;
  background:linear-gradient(180deg,transparent,rgba(10,15,26,.68));
  font-size:.78rem;font-weight:600;letter-spacing:.06em;color:var(--ink-2);
}
/* ============================================================
   MEDIA BAND
   ============================================================ */
.band{position:relative;overflow:hidden;border-block:1px solid var(--line);isolation:isolate}
.band img{width:100%;height:clamp(260px,34vw,440px);object-fit:cover}
.band::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,15,26,.52) 0%,rgba(10,15,26,.30) 55%,rgba(10,15,26,.58) 100%),
             radial-gradient(60% 70% at 15% 50%,rgba(31,111,235,.2),transparent 70%)}
.band-in{position:absolute;inset:0;z-index:2;display:grid;align-content:center}
.band-in .container{display:grid;gap:1rem;justify-items:start}
.band-in h2{font-size:clamp(1.6rem,3vw,2.5rem)}
.band-in p{max-width:52ch;color:var(--ink-2);font-size:.98rem}

/* ---------- Split ---------- */
.split{display:grid;gap:2.5rem;align-items:center;grid-template-columns:1fr}
@media (min-width:960px){
  .split{grid-template-columns:1.05fr .95fr}
  .split.rev > .split-fig{order:2}
}
.split-fig{position:relative;margin:0;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card)}
.split-fig img{width:100%;aspect-ratio:4/3.2;object-fit:cover}
.split-fig figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:1rem 1.3rem;
  background:linear-gradient(180deg,transparent,rgba(10,15,26,.68));
  font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);
}
.split-body{display:grid;gap:1.1rem;align-content:start}
.split-body h2{font-size:clamp(1.7rem,2.9vw,2.4rem)}

/* ---------- Feature list ---------- */
.flist{display:grid;gap:1rem}
.fitem{
  display:grid;grid-template-columns:40px 1fr;gap:.35rem 1.1rem;
  padding:1.2rem 1.4rem;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color .3s ease,transform .3s ease;
}
.fitem:hover{border-color:var(--line-glow);transform:translateY(-3px)}
.fitem .n{
  grid-row:1/span 2;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  background:var(--brand-soft);border:1px solid rgba(31,111,235,.3);color:var(--accent);
  font-size:.82rem;font-weight:700;letter-spacing:.02em;
}
.fitem h3{font-size:1rem;font-weight:700}
.fitem p{font-size:.88rem;color:var(--ink-2);max-width:64ch}

/* ---------- Process rail ---------- */
.rail{display:grid;gap:1.2rem;grid-template-columns:1fr}
@media (min-width:680px){.rail{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1080px){.rail{grid-template-columns:repeat(4,1fr)}}
.step{
  position:relative;padding:1.7rem 1.6rem;border-radius:var(--radius);display:grid;gap:.55rem;
  align-content:start;background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color .3s ease,transform .3s ease;
}
.step:hover{border-color:var(--line-glow);transform:translateY(-4px)}
.step .n{font-size:.72rem;font-weight:700;letter-spacing:.16em;color:var(--accent)}
.step h3{font-size:1.02rem;font-weight:700}
.step p{font-size:.86rem;color:var(--ink-2)}
/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid{display:grid;gap:1.5rem;align-items:start;grid-template-columns:1fr}
@media (min-width:1025px){.contact-grid{grid-template-columns:1.15fr .85fr}}
.form{
  padding:2.2rem;display:grid;gap:1rem;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.f-row{display:grid;gap:1rem;grid-template-columns:1fr}
@media (min-width:620px){.f-row.two{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:.4rem}
.field label{font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:.92rem;color:var(--ink);width:100%;
  background:rgba(10,15,26,.48);border:1px solid var(--line);border-radius:11px;
  padding:.8rem 1rem;transition:border-color .2s,box-shadow .2s;
}
.field textarea{resize:vertical;min-height:110px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,111,235,.22);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field select{appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px;background-repeat:no-repeat}
.field .err{font-size:.75rem;color:#fca5a5;min-height:1em}
.field[data-invalid="true"] input,.field[data-invalid="true"] textarea,.field[data-invalid="true"] select{
  border-color:#f87171;box-shadow:0 0 0 3px rgba(248,113,113,.18)}
.form-note{font-size:.76rem;color:var(--ink-3)}
.form-note a{color:var(--accent)}
.form-ok{
  padding:.9rem 1.1rem;border-radius:11px;font-size:.88rem;color:var(--ink);
  background:rgba(255,212,67,.1);border:1px solid rgba(255,212,67,.4);
}

.cinfo{display:grid;gap:1rem}
.crow{
  padding:1.3rem 1.5rem;border-radius:var(--radius);display:grid;gap:.3rem;
  background:var(--glass);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  transition:border-color .3s ease;
}
.crow:hover{border-color:var(--line-glow)}
.crow dt{font-size:.76rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.crow dd{font-size:.94rem;color:var(--ink)}
.crow dd a:hover{color:var(--accent)}

/* ---------- CTA panel ---------- */
.cta{
  position:relative;overflow:hidden;isolation:isolate;text-align:left;
  padding:clamp(2rem,4vw,3.2rem);border-radius:var(--radius-lg);display:grid;gap:1.1rem;
  background:var(--glass-2);border:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.cta::before{content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(60% 100% at 85% 0%,rgba(31,111,235,.22),transparent 70%),
             radial-gradient(50% 80% at 10% 100%,rgba(255,212,67,.1),transparent 70%)}
.cta h2{font-size:clamp(1.7rem,3vw,2.5rem);max-width:36ch}
.cta h3{font-size:1.1rem;font-weight:700}
.cta p{color:var(--ink-2);max-width:58ch}
.cta .btns{display:flex;flex-wrap:wrap;gap:1rem;margin-top:.3rem}
/* ============================================================
   FOOTER
   ============================================================ */
.ftr{border-top:1px solid var(--line);background:rgba(10,15,26,.48);padding:3rem 0 2.2rem}
.ftr-grid{display:grid;gap:2.5rem;margin-bottom:2.5rem;grid-template-columns:1fr}
@media (min-width:700px){.ftr-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1025px){.ftr-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.ftr .ftr-h{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin-bottom:1rem}
.ftr ul{list-style:none;display:grid;gap:.55rem}
.ftr a,.ftr li{font-size:.88rem;color:var(--ink-2)}
.ftr a{transition:color .2s}
.ftr a:hover{color:var(--accent)}

/* WCAG 2.5.8 target size: discrete link lists get a 24px minimum hit area.
   Links inline in running prose are exempt and deliberately left alone. */
.ftr li a,.crumb a,.crow dd a,.prod-kv dd a,.card h3 a{
  display:inline-flex;align-items:center;min-height:24px}
.ftr-about p{font-size:.88rem;color:var(--ink-3);margin-top:.9rem;max-width:32ch}
.ftr-bot{
  border-top:1px solid var(--line);padding-top:1.6rem;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-size:.78rem;color:var(--ink-3);
}

/* ---------- Reveal animation ---------- */
@media (prefers-reduced-motion:no-preference){
  [data-rv]{
    opacity:0;transform:translateY(26px);
    transition:opacity .7s cubic-bezier(.22,.61,.36,1),transform .7s cubic-bezier(.22,.61,.36,1);
    transition-delay:var(--d,0ms);
  }
  [data-rv].in{opacity:1;transform:none}
}

/* ---------- View transitions ---------- */
@media (prefers-reduced-motion:no-preference){
  ::view-transition-old(root){animation:vt-out .26s cubic-bezier(.22,.61,.36,1) both}
  ::view-transition-new(root){animation:vt-in .36s cubic-bezier(.22,.61,.36,1) both}
  @keyframes vt-out{to{opacity:0}}
  @keyframes vt-in{from{opacity:0}}
  ::view-transition-group(site-header){animation-duration:.01ms}
  ::view-transition-old(site-header),::view-transition-new(site-header){animation:none}
}
@media (prefers-reduced-motion:reduce){
  ::view-transition-old(*),::view-transition-new(*){animation:none!important}
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav{
    position:fixed;inset:74px 0 auto 0;z-index:99;
    background:rgba(10,15,26,.92);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    display:grid;padding:.5rem 4% 1.5rem;
    max-height:calc(100dvh - 74px);overflow-y:auto;
    visibility:hidden;opacity:0;transform:translateY(-10px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s;
  }
  .nav[data-open="true"]{visibility:visible;opacity:1;transform:none}
  .nav ul{flex-direction:column;gap:0}
  .nav a{padding:1rem .25rem;border-bottom:1px solid var(--line);font-size:1rem}
  .nav a::after{display:none}
  .nav a[aria-current="page"]{color:var(--accent)}
  .nav .m-cta{margin-top:1.2rem;display:grid}
  .nav-btn{display:grid}
  .hdr-cta .btn{display:none}
  .stat{padding:1.3rem 1.4rem;min-width:45%}
}
@media (min-width:1025px){.nav .m-cta{display:none}}
@media (max-width:600px){
  /* Uppercase + wide tracking pushes long captions to three lines in a narrow
     gallery tile, which starts covering the photo. Tighten both. */
  .gal figcaption{font-size:.7rem;letter-spacing:.01em;padding:.7rem .75rem .6rem;line-height:1.25}
  .split-fig figcaption{font-size:.72rem;letter-spacing:.04em;padding:.8rem 1rem}
  .sec{padding:4rem 0}
  .prod-body{padding:1.5rem 1.5rem 1.7rem}
  .form{padding:1.5rem}
  th,td{padding:.85rem 1.1rem}
  caption{padding:1.1rem 1.1rem}
}
@media print{
  .hdr,.ftr,.nav-btn,.cta,#particles{display:none}
  body{background:#fff;color:#000}
}