/* =========================================================
   B4S master-template · главная · рынок задаётся B4S_MARKET (скрипт внизу)
   Бренд-токены общие для всех рынков. Один радиус — 4px.
   ========================================================= */
:root{
  --b4s-red:#C8102E;        /* акцент: основная кнопка, мелкие метки */
  --b4s-red-dark:#A50D26;   /* hover основной кнопки */
  --b4s-ink:#0E1A2B;        /* заголовки, тёмные секции, подвал */
  --b4s-ink-2:#22344C;
  --b4s-text:#44536A;       /* основной текст, 7.8:1 на белом */
  --b4s-muted:#5C6B7E;      /* второстепенный, 5.4:1 на белом */
  --b4s-bg:#FFFFFF;
  --b4s-soft:#F5F7FA;
  --b4s-soft-2:#EBEFF4;
  --b4s-soft-3:#DFE5ED;
  --b4s-line:#E4E8EE;
  --b4s-line-2:#D3DAE3;
  --b4s-on-dark:#E8ECF2;
  --b4s-on-dark-2:#A9B7C9;
  --b4s-dark-line:rgba(232,236,242,.14);

  --font:"Onest", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --container:1280px;
  --gutter:12px;
  --section-y:96px;
  --radius:4px;
  --btn-h:56px;
  --hdr-h:80px;

  /* рыночные переменные (меняются вместе с B4S_MARKET) */
  --market-hero-pos:left center;
}
@media (max-width:1319px){:root{--gutter:24px}}
@media (max-width:767px){:root{--gutter:16px;--section-y:64px;--hdr-h:64px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;font-family:var(--font);font-size:17px;line-height:1.65;color:var(--b4s-text);background:var(--b4s-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit;letter-spacing:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--b4s-ink);font-weight:700;line-height:1.15;letter-spacing:-.02em;text-wrap:balance}
p{margin:0;text-wrap:pretty}
ul,ol,dl,dd,figure{margin:0;padding:0;list-style:none}
b,strong{font-weight:600;color:var(--b4s-ink)}
:focus-visible{outline:2px solid var(--b4s-red);outline-offset:3px}
[hidden]{display:none!important}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.nowrap{white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:200;background:var(--b4s-ink);color:#fff;padding:12px 20px;border-radius:var(--radius)}
.skip:focus{top:12px}
.container{width:100%;max-width:calc(var(--container) + 2 * var(--gutter));margin-inline:auto;padding-inline:var(--gutter)}

/* иконки (Tabler, outline) и технические схемы факела */
.i{width:20px;height:20px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.sp{flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ---------- кнопки: одна высота на всю страницу ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:var(--btn-h);padding:0 26px;border:0;border-radius:var(--radius);font-size:17px;font-weight:600;line-height:1;white-space:nowrap;text-decoration:none;cursor:pointer;transition:background-color .2s ease,color .2s ease}
.btn .i{transition:transform .25s ease}
.btn:hover .i--go{transform:translateX(4px)}
.btn--primary{background:var(--b4s-red);color:#fff}
.btn--primary:hover{background:var(--b4s-red-dark)}
.btn--dark{background:var(--b4s-ink);color:#fff}
.btn--dark:hover{background:var(--b4s-ink-2)}
.btn--light{background:#fff;color:var(--b4s-ink)}
.btn--light:hover{background:var(--b4s-soft-2)}
.btn--soft{background:var(--b4s-soft-2);color:var(--b4s-ink)}
.btn--soft:hover{background:var(--b4s-soft-3)}
.btn--ondark{background:rgba(255,255,255,.12);color:#fff}
.btn--ondark:hover{background:rgba(255,255,255,.2)}
.btn--block{width:100%}

.link-go{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--b4s-ink)}
.link-go .i{transition:transform .25s ease}
.link-go:hover{color:var(--b4s-red)}
.link-go:hover .i{transform:translateX(4px)}

/* ---------- секции ---------- */
.sec{padding-block:var(--section-y)}
.sec--soft{background:var(--b4s-soft)}
.sec--dark{background:var(--b4s-ink);color:var(--b4s-on-dark)}
.sec--dark h2,.sec--dark h3{color:#fff}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;column-gap:40px;margin-bottom:40px}
.sec-head__text{display:contents}
.sec-head h2{grid-column:1/-1}
.sec-head .sec-lead{grid-column:1}
.sec-head>.btn{grid-column:2;grid-row:2}
.sec-head h2,.h2{font-size:44px;line-height:1.12}
.sec-lead{margin-top:16px;font-size:18px;color:var(--b4s-text);max-width:720px}
.sec--dark .sec-lead{color:var(--b4s-on-dark-2)}
.sec-head .btn{flex:0 0 auto}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:var(--radius);background:var(--b4s-soft-2);color:var(--b4s-ink);font-size:16px;font-weight:500;line-height:1}
.tag--red{background:var(--b4s-red);color:#fff}

/* ---------- топбар ---------- */
.topbar{background:var(--b4s-soft);font-size:16px;color:var(--b4s-text)}
.topbar__in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:44px}
.topbar__list{display:flex;align-items:center;gap:28px}
.topbar__list a,.topbar__list span{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.topbar__list .i{width:18px;height:18px;color:var(--b4s-muted)}
.topbar__list a:hover{color:var(--b4s-red)}
.topbar__list a:hover .i{color:var(--b4s-red)}
.lang{display:flex;align-items:center;gap:2px;font-weight:600}
.lang a{display:inline-flex;align-items:center;height:30px;padding:0 8px;border-radius:var(--radius);color:var(--b4s-muted)}
.lang a:hover{color:var(--b4s-ink);background:var(--b4s-soft-2)}
.lang a[aria-current]{color:#fff;background:var(--b4s-ink)}
.topbar__right{display:flex;align-items:center;gap:28px}

/* ---------- шапка: три бокса ---------- */
.hdr{position:sticky;top:0;z-index:60;background:#fff;padding-block:12px}
.hdr__in{display:flex;align-items:stretch;gap:10px;height:var(--hdr-h)}
.hdr__logo{flex:0 0 140px;display:flex;align-items:center;justify-content:center;background:var(--b4s-ink);color:#fff;border-radius:var(--radius)}
.hdr__logo svg{width:92px;height:auto}
.hdr__nav{flex:1 1 auto;display:flex;align-items:center;justify-content:center;background:var(--b4s-soft);border-radius:var(--radius);padding-inline:6px;min-width:0}
.menu{display:flex;align-items:center;height:100%}
.menu>li{position:relative;display:flex;align-items:center;height:100%}
.menu>li+li::before{content:"";width:1px;height:18px;background:#AEB8C5}
.menu>li>a{display:flex;align-items:center;gap:4px;height:100%;padding-inline:9px;color:var(--b4s-ink);font-size:16px;font-weight:500;white-space:nowrap;transition:color .2s}
.menu>li:hover>a,.menu>li:focus-within>a{color:var(--b4s-red)}
.sub{position:absolute;top:calc(100% + 12px);left:-6px;z-index:5;min-width:320px;padding:24px 28px;background:var(--b4s-soft);border-radius:var(--radius);color:var(--b4s-ink);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .22s ease,transform .22s ease,visibility 0s linear .22s}
.sub::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.menu>li:hover>.sub,.menu>li:focus-within>.sub{opacity:1;visibility:visible;transform:none;transition:opacity .22s ease,transform .22s ease,visibility 0s}
.sub__cols{display:grid;gap:12px 40px}
.sub__title{display:block;margin-bottom:8px;color:var(--b4s-muted);font-size:16px;font-weight:500}
.sub a{display:block;padding:6px 0;color:var(--b4s-ink);font-size:16px;line-height:1.4;transition:color .2s,transform .2s}
.sub a:hover{color:var(--b4s-red);transform:translateX(3px)}
.sub{width:max-content;max-width:calc(100vw - 48px)}
.sub--mega{width:max-content;max-width:min(1080px,calc(100vw - 48px))}
.sub--mega .sub__cols{grid-template-columns:repeat(3,minmax(0,max-content))}
.sub--two{width:max-content;max-width:min(820px,calc(100vw - 48px))}
.sub--two .sub__cols{grid-template-columns:repeat(2,minmax(0,max-content))}
.sub__group+.sub__group{margin-top:20px}
.hdr__actions{flex:0 0 auto;display:flex;align-items:center;gap:8px;padding-inline:8px;background:var(--b4s-soft);border-radius:var(--radius)}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:52px;height:56px;border:0;border-radius:var(--radius);background:transparent;color:var(--b4s-ink);transition:background-color .2s}
.icon-btn:hover{background:var(--b4s-soft-2)}
.icon-btn .i{width:24px;height:24px}
.burger{display:none}

/* поиск из шапки */
.hsearch{position:absolute;left:0;right:0;top:100%;background:#fff;padding-block:0 16px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s,transform .2s,visibility 0s linear .2s}
.hsearch.is-open{opacity:1;visibility:visible;transform:none;transition:opacity .2s,transform .2s,visibility 0s}
.hsearch form{display:flex;gap:12px}

/* ---------- герой ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;background:var(--b4s-ink);color:var(--b4s-on-dark)}
.hero__media{position:absolute;top:0;bottom:0;right:0;width:46%;z-index:-1;overflow:hidden}
.hero__media img{width:100%;height:100%;object-fit:cover;object-position:var(--market-hero-pos)}
.hero__media img[src*='06_generated']{object-position:50% 50%}
.hero__media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#0E1A2B 0%,rgba(14,26,43,.55) 16%,rgba(14,26,43,.08) 42%,rgba(14,26,43,.18) 100%)}
.hero__in{position:relative;display:flex;align-items:center;min-height:640px;padding-block:64px 152px}
.hero__content{min-width:0;max-width:760px}
.nw{white-space:nowrap}
.hero h1{color:#fff;font-size:48px;line-height:1.1;letter-spacing:-.025em}
.hero__lead{margin-top:24px;max-width:600px;font-size:20px;line-height:1.55;color:var(--b4s-on-dark)}
.hero__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
.hero__quick{margin-top:24px;font-size:17px;line-height:1.9;color:var(--b4s-on-dark-2)}
.hero__quick a{display:inline-flex;align-items:center;gap:6px;vertical-align:bottom;color:#fff;font-weight:600;border-bottom:1px solid rgba(255,255,255,.35);transition:border-color .2s}
.hero__quick a:hover{border-color:#fff}
.hero__quick .i{width:18px;height:18px}
.js .hero__media img{transform:scale(1.06);transition:transform 1.8s cubic-bezier(.2,.7,.2,1)}
.js .hero.is-in .hero__media img{transform:none}

/* ---------- поиск по каталогу ---------- */
.search-sec{background:var(--b4s-soft)}
.spanel{position:relative;z-index:2;display:grid;grid-template-columns:1fr 400px;margin-top:-104px;background:#fff;border-radius:var(--radius);overflow:hidden}
.spanel__search{padding:36px 40px}
.spanel__title{font-size:24px;letter-spacing:-.01em}
.sfield{display:flex;gap:12px;margin-top:20px}
.sfield__box{position:relative;flex:1 1 auto;min-width:0}
.sfield__box .i{position:absolute;left:18px;top:50%;width:22px;height:22px;margin-top:-11px;color:var(--b4s-muted);pointer-events:none}
.input{width:100%;height:var(--btn-h);padding:0 18px;border:0;border-radius:var(--radius);background:var(--b4s-soft);color:var(--b4s-ink);font-size:17px;transition:background-color .2s;appearance:none}
.input::placeholder{color:var(--b4s-muted);opacity:1}
.input:focus{outline:none;background:var(--b4s-soft-3)}
.input:focus-visible{outline:none}
.sfield .input,.hsearch .input{padding-left:52px}
.pos-art-big{object-position:50% 72%}
.pos-art-angles{object-position:50% 60%}
.docs__pic img.pos-docs-zpl{object-fit:contain;background:#fff;padding:12px}
.chips{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:18px}
.chips__label{margin-right:4px;color:var(--b4s-muted);font-size:16px}
.chips a{display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--radius);background:var(--b4s-soft);color:var(--b4s-ink);font-size:16px;font-weight:500;transition:background-color .2s,color .2s}
.chips a:hover{background:var(--b4s-ink);color:#fff}
.spanel__quick{display:flex;flex-direction:column;justify-content:center;gap:12px;padding:36px 40px;background:var(--b4s-soft-2)}
.spanel__quick h3{font-size:22px}
.spanel__quick p{font-size:17px}
.spanel__quick .btn{align-self:flex-start;margin-top:8px}

/* ---------- категории: 1 большая + 4 + все разделы ---------- */
.cats{padding-top:96px}
.cats__grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,5fr) minmax(0,3fr);gap:24px}
.cats__small{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.ccard{position:relative;display:flex;flex-direction:column;background:#fff;border-radius:var(--radius);overflow:hidden;color:var(--b4s-text)}
.ccard__img{display:flex;align-items:center;justify-content:center;height:124px;padding:12px 20px 0;overflow:hidden}
.ccard__img img{width:100%;height:100%;object-fit:contain;mix-blend-mode:multiply;transform:scale(1.12);transition:transform .5s ease}
.ccard:hover .ccard__img img{transform:scale(1.16)}
.ccard--big .ccard__img img{transform:none}
.ccard--big:hover .ccard__img img{transform:scale(1.03)}
.ccard__body{display:flex;flex-direction:column;gap:6px;flex:1;padding:12px 24px 22px}
.ccard h3{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;font-size:18px;line-height:1.3;letter-spacing:-.01em;hyphens:manual;transition:color .2s}
.ccard h3 .i{margin-top:2px;color:var(--b4s-ink);transition:transform .25s ease,color .2s}
.ccard:hover h3{color:var(--b4s-red)}
.ccard:hover h3 .i{transform:translateX(4px);color:var(--b4s-red)}
.ccard p{font-size:16px;line-height:1.5}
.ccard--big .ccard__img{flex:1 1 0;height:auto;min-height:220px;padding:24px 32px 0}
.ccard--big .ccard__body{flex:0 0 auto;padding:16px 32px 32px;gap:10px}
.ccard--big h3{font-size:24px}
.ccard--big p{font-size:17px;line-height:1.6}
.ccard--big .tag{align-self:flex-start}
.cats__all{display:flex;flex-direction:column;background:var(--b4s-ink);border-radius:var(--radius);padding:28px 24px 24px;color:var(--b4s-on-dark)}
.cats__all ul{display:flex;flex-direction:column;justify-content:space-between;flex:1}
.cats__all h3{color:#fff;font-size:20px;margin-bottom:12px;padding-inline:4px}
.cats__all a{display:flex;align-items:center;gap:12px;height:38px;padding-inline:4px;border-radius:var(--radius);color:var(--b4s-on-dark);font-size:16px;line-height:1.25;transition:color .2s,background-color .2s}
.cats__all a .sp{width:26px;height:26px;color:var(--b4s-on-dark-2);transition:color .2s}
.cats__all a:hover{color:#fff;background:var(--b4s-ink-2)}
.cats__all a:hover .sp{color:#fff}

/* ---------- применения: вкладки ---------- */
.apps__wrap{display:grid;grid-template-columns:340px 1fr;gap:24px;align-items:stretch}
.apps__tabs{display:flex;flex-direction:column;gap:2px;padding:12px;background:var(--b4s-soft);border-radius:var(--radius)}
.apps__tab{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:10px 16px;border-radius:var(--radius);color:var(--b4s-ink);font-weight:500;line-height:1.3;transition:background-color .2s,color .2s}
.apps__tab .i{opacity:0;transform:translateX(-6px);transition:opacity .2s,transform .25s}
.apps__tab:hover{background:var(--b4s-soft-2)}
.apps__tab[aria-selected="true"]{background:var(--b4s-ink);color:#fff}
.apps__tab[aria-selected="true"] .i{opacity:1;transform:none}
.apps__panels{display:grid;gap:24px}
.js .apps__panels{gap:0}
.js .apanel{grid-area:1/1;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility 0s linear .3s}
.js .apanel.is-active{opacity:1;visibility:visible;transition:opacity .3s ease,visibility 0s}
.apanel{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;padding:40px;background:var(--b4s-soft);border-radius:var(--radius)}
.apanel__text{display:flex;flex-direction:column;gap:16px}
.apanel h3{font-size:30px;line-height:1.15}
.apanel__ask{padding-top:16px;border-top:1px solid var(--b4s-line-2);font-size:16px;line-height:1.6}
.apanel__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:8px}
.apanel__fit-title{margin-bottom:12px;color:var(--b4s-muted);font-size:16px}
.fit{display:grid;gap:12px}
.fit a{display:grid;grid-template-columns:72px 1fr;align-items:center;gap:16px;padding:12px;background:#fff;border-radius:var(--radius);transition:background-color .2s}
.fit a:hover{background:var(--b4s-soft-2)}
.fit__pic{display:flex;align-items:center;justify-content:center;width:72px;height:72px;border-radius:var(--radius);background:var(--b4s-soft);color:var(--b4s-ink)}
.fit__pic .sp{width:52px;height:52px}
.fit b{display:block;font-size:17px;line-height:1.3}
.fit small{display:block;margin-top:2px;color:var(--b4s-muted);font-size:16px;line-height:1.4}
.js .apanel .fit li{opacity:0;transform:translateX(14px);transition:opacity .35s ease,transform .45s cubic-bezier(.2,.7,.2,1)}
.js .apanel.is-active .fit li{opacity:1;transform:none}
.js .apanel.is-active .fit li:nth-child(2){transition-delay:.06s}
.js .apanel.is-active .fit li:nth-child(3){transition-delay:.12s}

/* ---------- отрасли ---------- */
.inds__grid{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:stretch}
.inds__photo{position:relative;border-radius:var(--radius);overflow:hidden;min-height:420px}
.inds__photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 30%}
.inds__list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:48px;align-content:start}
.irow{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--b4s-dark-line);color:var(--b4s-on-dark)}
.irow b{display:block;color:#fff;font-size:18px;font-weight:600;line-height:1.3;transition:color .2s}
.irow small{display:block;margin-top:4px;color:var(--b4s-on-dark-2);font-size:16px;line-height:1.45}
.irow>.i{color:var(--b4s-on-dark-2);transition:transform .25s,color .2s}
.irow:hover b{color:var(--b4s-on-dark-2)}
.irow:hover>.i{color:#fff;transform:translateX(4px)}
.inds__geo{grid-column:1/-1;display:flex;gap:12px;margin-top:8px;color:var(--b4s-on-dark-2);font-size:16px;line-height:1.6}
.inds__geo .i{margin-top:2px;color:var(--b4s-on-dark)}
.inds__geo b{color:#fff}

/* ---------- почему B4S ---------- */
.why__grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:stretch}
.why__photo{position:relative;border-radius:var(--radius);overflow:hidden;min-height:480px;background:var(--b4s-ink)}
.why__photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 40%}
.why__photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:20px 24px;background:rgba(14,26,43,.86);color:var(--b4s-on-dark);font-size:16px;line-height:1.5}
.why__content{display:flex;flex-direction:column}
.why__content .sec-lead{max-width:none}
.htabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;margin-top:32px;padding:4px;background:var(--b4s-soft);border-radius:var(--radius)}
.htabs a{display:flex;align-items:center;justify-content:center;min-height:52px;padding:8px 12px;border-radius:var(--radius);color:var(--b4s-ink);font-weight:600;text-align:center;line-height:1.25;transition:background-color .2s,color .2s}
.htabs a:hover{background:var(--b4s-soft-2)}
.htabs a[aria-selected="true"]{background:var(--b4s-ink);color:#fff}
.hpanels{display:grid;gap:20px;margin-top:24px}
.js .hpanels{gap:0}
.js .hpanel{grid-area:1/1;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .3s,transform .35s,visibility 0s linear .3s}
.js .hpanel.is-active{opacity:1;visibility:visible;transform:none;transition:opacity .3s,transform .35s,visibility 0s}
.hpanel p+p{margin-top:12px}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-top:auto;padding-top:40px}
.fact__num{display:flex;align-items:baseline;gap:6px;color:var(--b4s-ink);font-size:52px;font-weight:700;line-height:1;letter-spacing:-.03em}
.fact__num small{font-size:22px;font-weight:600;letter-spacing:0}
.fact__txt{margin-top:14px;padding-top:14px;border-top:1px solid var(--b4s-line-2);font-size:16px;line-height:1.45}
.why__more{display:flex;flex-wrap:wrap;align-items:center;gap:16px 24px;margin-top:28px}
.why__note{display:flex;align-items:center;gap:10px;font-size:16px;color:var(--b4s-text)}
.why__note .i{color:var(--b4s-red)}

/* ---------- шаги: две дорожки «Вы» и «Инженер B4S» ---------- */
.flow{position:relative;display:grid;grid-template-columns:52px repeat(4,minmax(0,1fr)) 0;grid-template-rows:auto auto;column-gap:20px;row-gap:32px}
.flow__steps{display:contents}
.flow__band{grid-column:1/-1;border-radius:var(--radius)}
.flow__band--you{grid-row:1;background:#fff}
.flow__band--b4s{grid-row:2;background:var(--b4s-ink)}
.flow__lane{grid-column:1;align-self:stretch;display:flex;align-items:center;justify-content:center;margin:0;writing-mode:vertical-rl;transform:rotate(180deg);font-size:16px;font-weight:600;line-height:1;white-space:nowrap}
.flow__lane--you{grid-row:1;color:var(--b4s-ink)}
.flow__lane--b4s{grid-row:2;color:#fff}
.flow__svg{position:absolute;inset:0;z-index:3;width:100%;height:100%;overflow:visible;pointer-events:none}
.flow__line{fill:none;stroke:var(--b4s-red);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.flow.is-wait .flow__line{opacity:0}
.flow__port{fill:var(--b4s-red);stroke:#fff;stroke-width:2.5;opacity:0;transform-box:fill-box;transform-origin:center;transform:scale(.3);transition:opacity .25s ease,transform .4s cubic-bezier(.16,1,.3,1)}
.flow__port.is-on{opacity:1;transform:none}
.fstep{position:relative;z-index:2;display:flex;flex-direction:column;gap:10px;margin-block:20px;padding:24px 24px 28px;border-radius:var(--radius)}
.fstep--you{grid-row:1;background:var(--b4s-soft)}
.fstep--b4s{grid-row:2;background:var(--b4s-ink-2);color:var(--b4s-on-dark-2)}
.fstep:nth-child(1),.fstep:nth-child(2){grid-column:2}.fstep:nth-child(3){grid-column:3}
.fstep:nth-child(4){grid-column:4}.fstep:nth-child(5),.fstep:nth-child(6){grid-column:5}
.fstep__top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.fstep__num{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:32px;padding:0 8px;border-radius:var(--radius);font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1;transition:background-color .45s ease,color .45s ease}
.fstep--you .fstep__num{background:var(--b4s-ink);color:#fff}
.fstep--b4s .fstep__num{background:#fff;color:var(--b4s-ink)}
.fstep.is-lit .fstep__num{background:var(--b4s-red);color:#fff}
.fstep__who{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.fstep h3{font-size:22px;line-height:1.2}
.fstep--b4s h3{color:#fff}
.fstep p{font-size:16px;line-height:1.5}
.flow__start{grid-row:1;grid-column:3/span 2;z-index:2;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:18px;margin-block:20px;padding:8px 32px}
.flow__start p{max-width:400px;color:var(--b4s-ink);font-size:20px;font-weight:600;line-height:1.35;letter-spacing:-.01em}

/* ---------- подбор аналога ---------- */
.analog__grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,4.5fr) minmax(0,4.5fr);gap:24px;align-items:stretch}
.analog__photo{position:relative;border-radius:var(--radius);overflow:hidden;min-height:360px}
.analog__photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 60%}
.decoder{display:flex;flex-direction:column;padding:32px;background:var(--b4s-ink);border-radius:var(--radius);color:var(--b4s-on-dark)}
.decoder h3{color:#fff;font-size:22px}
.decoder__sub{margin-top:6px;color:var(--b4s-on-dark-2);font-size:16px}
.decoder__code{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:20px;font-size:30px;font-weight:700;line-height:1;color:#fff;letter-spacing:-.01em}
.decoder__code span{display:inline-flex;align-items:center;height:48px;padding:0 8px;border-radius:var(--radius);background:var(--b4s-ink-2);cursor:default;transition:background-color .2s,color .2s}
.decoder__code span.is-on{background:var(--b4s-red);color:#fff}
.decoder__rows{margin-top:20px}
.decoder__rows div{display:grid;grid-template-columns:56px 1fr;align-items:start;gap:12px;padding:8px 0;border-top:1px solid var(--b4s-dark-line);font-size:16px;line-height:1.45}
.decoder__rows dt{justify-self:start;padding:0 6px;border-radius:var(--radius);color:#fff;font-weight:700;transition:background-color .2s}
.decoder__rows dd{color:var(--b4s-on-dark-2);transition:color .2s}
.decoder__rows div.is-on dt{background:var(--b4s-red)}
.decoder__rows div.is-on dd{color:#fff}
.decoder__note{margin-top:auto;padding-top:20px;color:var(--b4s-on-dark-2);font-size:16px;line-height:1.5}

/* ---------- формы ---------- */
.fcard{display:flex;flex-direction:column;padding:32px;background:var(--b4s-soft);border-radius:var(--radius)}
.fcard h3{font-size:22px}
.fcard__sub{margin-top:6px;font-size:16px;color:var(--b4s-text)}
.form{display:grid;gap:12px;margin-top:20px}
.form__row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.field{display:grid;gap:6px}
.field label,.field__label{color:var(--b4s-ink);font-size:16px;font-weight:500}
.field label .req{color:var(--b4s-red)}
.fcard .input,.plate .input{background:#fff}
.fcard .input:focus,.plate .input:focus{background:var(--b4s-soft-3)}
textarea.input{height:auto;min-height:112px;padding-block:14px;line-height:1.5;resize:vertical}
.upl{position:relative;display:flex;align-items:center;gap:14px;min-height:var(--btn-h);padding:10px 18px;border-radius:var(--radius);background:#fff;cursor:pointer;transition:background-color .2s}
.upl:hover{background:var(--b4s-soft-3)}
.upl input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.upl .i{width:22px;height:22px;color:var(--b4s-ink)}
.upl b{display:block;font-size:16px;line-height:1.35}
.upl small{display:block;color:var(--b4s-muted);font-size:16px;line-height:1.35}
.upl:focus-within{outline:2px solid var(--b4s-red);outline-offset:3px}
.modal .upl,.fcard--white .upl{background:var(--b4s-soft)}
.upl__files{display:grid;gap:4px;font-size:16px;color:var(--b4s-ink)}
.upl__files li{display:flex;justify-content:space-between;gap:12px}
.upl__files li.is-bad{color:var(--b4s-red)}
.check{display:flex;align-items:flex-start;gap:12px;font-size:16px;color:var(--b4s-ink);cursor:pointer;line-height:1.45}
.check input{appearance:none;flex:0 0 auto;width:22px;height:22px;margin:0;border-radius:var(--radius);background:#fff;display:grid;place-items:center;cursor:pointer;transition:background-color .2s}
.check input::after{content:"";width:11px;height:6px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg) translate(1px,-1px);opacity:0}
.check input:checked{background:var(--b4s-ink)}
.check input:checked::after{opacity:1}
.modal .check input,.fcard--white .check input{background:var(--b4s-soft-2)}
.modal .check input:checked,.fcard--white .check input:checked{background:var(--b4s-ink)}
.reveal{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.reveal>div{overflow:hidden}
.reveal.is-open{grid-template-rows:1fr}
.reveal.is-open>div{padding-top:2px}
.form__note{font-size:16px;line-height:1.5;color:var(--b4s-muted)}
.form__note a{color:var(--b4s-ink);border-bottom:1px solid var(--b4s-line-2)}
.form__note a:hover{border-color:var(--b4s-ink)}
.form__ok{display:none;padding:24px;border-radius:var(--radius);background:#fff;color:var(--b4s-ink)}
.form__ok b{display:block;font-size:20px;margin-bottom:6px}
.is-sent .form{display:none}
.is-sent .form__ok{display:block}

/* ---------- популярные позиции ---------- */
.prods{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.prod{position:relative;display:flex;flex-direction:column;background:#fff;border-radius:var(--radius);overflow:hidden}
.prod__name::after{content:"";position:absolute;inset:0;z-index:0}
.prod__kp{position:relative;z-index:1}
.prod__img{display:block;height:184px;padding:12px 16px 0;overflow:hidden}
.prod__img img{width:100%;height:100%;object-fit:contain;transition:transform .5s ease}
.prod:hover .prod__img img{transform:scale(1.03)}
.prod__body{display:flex;flex-direction:column;flex:1;padding:12px 20px 24px}
.prod__name{color:var(--b4s-ink);font-size:16px;font-weight:600;line-height:1.35;transition:color .2s}
.prod__name:hover{color:var(--b4s-red)}
.prod__art{margin-top:2px;color:var(--b4s-ink);font-size:16px;font-weight:700;line-height:1.35}
.prod__specs{display:grid;gap:8px;margin-top:16px;padding-top:16px;padding-bottom:18px;border-top:1px solid var(--b4s-line)}
.prod__specs div{display:grid;grid-template-columns:84px 1fr;gap:12px;font-size:16px;line-height:1.4}
.prod__specs dt{color:var(--b4s-muted)}
.prod__specs dd{color:var(--b4s-ink);font-weight:500}
.prod__foot{display:flex;align-items:center;margin-top:auto;padding-top:14px;border-top:1px solid var(--b4s-line)}
.prod__price{color:var(--b4s-muted);font-size:16px}
.prod__kp{display:inline-flex;align-items:center;gap:6px;min-height:44px;color:var(--b4s-ink);font-size:16px;font-weight:600;white-space:nowrap;transition:color .2s}
.prod__kp .i{width:18px;height:18px;transition:transform .25s}
.prod__kp:hover{color:var(--b4s-red)}
.prod__kp:hover .i{transform:translateX(3px)}

/* ---------- каталоги ---------- */
.docs__grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.docs__text{display:flex;flex-direction:column;gap:24px}
.docs__pic{border-radius:var(--radius);overflow:hidden;background:var(--b4s-soft)}
.docs__pic img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.docs__req{display:flex;flex-direction:column;align-items:flex-start;gap:16px;padding:24px 28px;border-radius:var(--radius);background:var(--b4s-soft)}
.docs__req p{font-size:17px;line-height:1.5;color:var(--b4s-ink)}
.docs__req .btn{flex:0 0 auto}
.docs__list{border-top:1px solid var(--b4s-line)}
.doc{display:grid;grid-template-columns:52px 1fr auto;align-items:center;gap:20px;padding:16px 8px 16px 0;border-bottom:1px solid var(--b4s-line)}
.doc__ic{display:flex;align-items:center;justify-content:center;width:52px;height:60px;border-radius:var(--radius);background:var(--b4s-soft);color:var(--b4s-red);font-size:16px;font-weight:700;letter-spacing:.02em;transition:background-color .2s,color .2s}
.doc:hover .doc__ic{background:var(--b4s-red);color:#fff}
.doc b{display:block;font-size:18px;line-height:1.35;transition:color .2s}
.doc small{display:block;margin-top:2px;color:var(--b4s-muted);font-size:16px;line-height:1.4}
.doc__dl{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius);background:var(--b4s-soft);color:var(--b4s-ink);transition:background-color .2s,color .2s}
.doc:hover b{color:var(--b4s-red)}
.doc:hover .doc__dl{background:var(--b4s-ink);color:#fff}

/* ---------- статьи ---------- */
.arts__grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.art-big{display:flex;flex-direction:column;background:#fff;border-radius:var(--radius);overflow:hidden}
.art-big__img{aspect-ratio:2/1;overflow:hidden}
.art-big__img img,.art-sm__img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.art-big:hover img,.art-sm:hover img{transform:scale(1.03)}
.art-big__body{display:flex;flex-direction:column;gap:12px;padding:28px 32px 32px}
.art-big h3{font-size:26px;line-height:1.2;transition:color .2s}
.art-big p{font-size:17px}
.art-list{display:grid;grid-template-rows:repeat(3,minmax(0,1fr));gap:24px}
.art-sm{display:grid;grid-template-columns:220px 1fr;background:#fff;border-radius:var(--radius);overflow:hidden}
.art-sm__img{overflow:hidden;background:var(--b4s-soft)}
.art-sm__body{display:flex;flex-direction:column;justify-content:center;gap:10px;padding:20px 28px}
.art-sm h3{font-size:20px;line-height:1.25;transition:color .2s}
.art-big:hover h3,.art-sm:hover h3{color:var(--b4s-red)}
.art-tag{align-self:flex-start}

/* ---------- FAQ ---------- */
.faq__grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:56px;align-items:start}
.qa{border-bottom:1px solid var(--b4s-line)}
.qa:first-child{border-top:1px solid var(--b4s-line)}
.qa summary{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0;color:var(--b4s-ink);font-size:18px;font-weight:600;line-height:1.4;cursor:pointer;list-style:none;transition:color .2s}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--b4s-red)}
.qa__ic{position:relative;flex:0 0 auto;width:36px;height:36px;border-radius:var(--radius);background:var(--b4s-soft);transition:background-color .2s}
.qa__ic::before,.qa__ic::after{content:"";position:absolute;left:50%;top:50%;width:14px;height:2px;margin:-1px 0 0 -7px;background:var(--b4s-ink);transition:transform .3s ease,background-color .2s}
.qa__ic::after{transform:rotate(90deg)}
.qa[open] .qa__ic{background:var(--b4s-ink)}
.qa[open] .qa__ic::before,.qa[open] .qa__ic::after{background:#fff}
.qa[open] .qa__ic::after{transform:rotate(0)}
.qa__a{overflow:hidden}
.qa__in{padding:0 60px 22px 0}
.qa__in p+p{margin-top:10px}
.qa.is-closing .qa__ic{background:var(--b4s-soft)}
.qa.is-closing .qa__ic::before,.qa.is-closing .qa__ic::after{background:var(--b4s-ink)}
.qa.is-closing .qa__ic::after{transform:rotate(90deg)}
.ask{position:sticky;top:128px;display:flex;flex-direction:column;gap:14px;padding:32px;background:var(--b4s-ink);border-radius:var(--radius);color:var(--b4s-on-dark)}
.ask h3{color:#fff;font-size:24px}
.ask p{color:var(--b4s-on-dark-2)}
.ask .btn{width:100%;margin-top:4px}
.ask__mail{display:inline-flex;align-items:center;justify-content:center;gap:10px;margin-top:4px;color:#fff;font-weight:600}
.ask__mail:hover{color:var(--b4s-on-dark-2)}

/* ---------- финальная плашка: фото под затемнением, нахлёст на подвал ---------- */
.final{position:relative;z-index:2;padding-top:var(--section-y)}
.plate{position:relative;isolation:isolate;overflow:hidden;display:grid;grid-template-columns:1fr 540px;gap:56px;margin-bottom:-140px;padding:56px;background:var(--b4s-ink);border-radius:var(--radius);color:var(--b4s-on-dark)}
.plate__bg{position:absolute;inset:0;z-index:-1}
.plate__bg img{width:100%;height:100%;object-fit:cover;object-position:70% 50%}
.plate__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(14,26,43,.93) 0%,rgba(14,26,43,.84) 40%,rgba(14,26,43,.66) 62%,rgba(14,26,43,.42) 100%)}
.plate h2{color:#fff;font-size:38px;line-height:1.14}
.plate__lead{margin-top:16px;font-size:18px;color:var(--b4s-on-dark)}
.ticks{display:grid;gap:12px;margin-top:28px}
.ticks li{display:flex;gap:12px;color:#fff;font-size:17px;line-height:1.5}
.ticks .i{margin-top:2px;color:#E8364F}
.plate__msg{margin-top:32px;padding-top:24px;border-top:1px solid var(--b4s-dark-line)}
.plate__msg p{color:#fff;font-weight:500}
.plate__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}
.people{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 24px;margin-top:16px}
.people a{display:flex;align-items:center;gap:12px;min-height:44px;color:#fff;line-height:1.3}
.people a>.i{color:var(--b4s-on-dark-2);transition:color .2s}
.people a:hover>.i{color:#fff}
.people b{display:block;color:#fff;font-weight:600}
.people small{display:block;color:var(--b4s-on-dark-2);font-size:16px}
.fcard--white{background:#fff}
.fcard--white .input{background:var(--b4s-soft)}
.fcard--white .input:focus{background:var(--b4s-soft-3)}

/* ---------- подвал ---------- */
.foot{padding-top:calc(140px + 80px);background:var(--b4s-ink);color:var(--b4s-on-dark-2);font-size:16px}
.foot__grid{display:grid;grid-template-columns:4fr 2.6fr 2.6fr 3.2fr;gap:40px;padding-bottom:56px}
.foot__logo{display:inline-flex;color:#fff}
.foot__logo svg{width:112px;height:auto}
.foot__about{margin-top:20px;line-height:1.6;max-width:360px}
.soc{display:flex;gap:8px;margin-top:24px}
.soc a{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius);background:var(--b4s-ink-2);color:#fff;transition:background-color .2s,color .2s}
.soc a:hover{background:#fff;color:var(--b4s-ink)}
.foot h2{margin-bottom:18px;color:#fff;font-size:18px;font-weight:600;letter-spacing:0}
.foot__links{display:grid;gap:10px}
.foot__links a{transition:color .2s}
.foot__links a:hover{color:#fff}
.foot__contacts{display:grid;gap:14px}
.foot__contacts li>a,.foot__contacts li>span{display:flex;align-items:flex-start;gap:12px;line-height:1.45}
.foot__contacts li>a>span,.foot__contacts li>span>span{display:block}
.foot__contacts .i{margin-top:1px;color:#fff}
.foot__contacts a{color:#fff}
.foot__contacts a:hover{color:var(--b4s-on-dark-2)}
.foot__contacts small{display:block;color:var(--b4s-on-dark-2);font-size:16px}
.foot__bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 32px;padding-block:24px;border-top:1px solid var(--b4s-dark-line)}
.foot__legal{display:flex;flex-wrap:wrap;gap:6px 24px}
.foot__bottom a{color:var(--b4s-on-dark);border-bottom:1px solid transparent;transition:border-color .2s}
.foot__bottom a:hover{border-color:var(--b4s-on-dark)}
.foot__group{display:flex;flex-wrap:wrap;gap:6px 12px}

/* ---------- UZ: карта поставок в блоке отраслей ---------- */
.inds__grid--geo{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
.geo{display:flex;flex-direction:column;gap:18px;padding:28px;border-radius:var(--radius);background:var(--b4s-ink-2)}
.geo h3{color:#fff;font-size:20px;line-height:1.3}
.geo__map{display:block;width:100%;height:auto}
.geo__nb path{fill:none;stroke:rgba(232,236,242,.18);stroke-width:1}
.geo__land{fill:rgba(232,236,242,.08);stroke:rgba(232,236,242,.6);stroke-width:1.5;stroke-linejoin:round}
.geo__dot{fill:var(--b4s-red);stroke:#fff;stroke-width:3}
.geo__halo{fill:var(--b4s-red);opacity:0;transform-box:fill-box;transform-origin:center;transition:opacity .25s ease}
.geo__pt.is-on .geo__halo{opacity:.45}
.js .geo.is-in .geo__halo{animation:ping 1.6s cubic-bezier(.2,.7,.2,1) both}
.geo.is-in .geo__pt:nth-child(2) .geo__halo{animation-delay:.12s}.geo.is-in .geo__pt:nth-child(3) .geo__halo{animation-delay:.24s}
.geo.is-in .geo__pt:nth-child(4) .geo__halo{animation-delay:.36s}.geo.is-in .geo__pt:nth-child(5) .geo__halo{animation-delay:.48s}
.geo.is-in .geo__pt:nth-child(6) .geo__halo{animation-delay:.6s}.geo.is-in .geo__pt:nth-child(7) .geo__halo{animation-delay:.72s}
.geo.is-in .geo__pt:nth-child(8) .geo__halo{animation-delay:.84s}.geo.is-in .geo__pt:nth-child(9) .geo__halo{animation-delay:.96s}
.geo.is-in .geo__pt:nth-child(10) .geo__halo{animation-delay:1.08s}.geo.is-in .geo__pt:nth-child(11) .geo__halo{animation-delay:1.2s}
@keyframes ping{0%{opacity:.6;transform:scale(.4)}100%{opacity:0;transform:scale(2.2)}}
.geo__list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px 16px;font-size:16px;line-height:1.4}
.geo__list li{display:flex;align-items:center;gap:8px;color:var(--b4s-on-dark);cursor:default;transition:color .2s}
.geo__list li::before{content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:var(--b4s-red)}
.geo__list li.is-on{color:#fff}
.geo__note{margin-top:auto;padding-top:16px;border-top:1px solid var(--b4s-dark-line);color:var(--b4s-on-dark-2);font-size:16px;line-height:1.5}

/* ---------- PL: kalkulator inżynierski (тёмная секция) ---------- */
.calc__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:24px;align-items:stretch}
.calc__viz{display:flex;flex-direction:column;justify-content:center;gap:24px;padding:40px 32px 32px;border-radius:var(--radius);background:var(--b4s-ink-2)}
.calc__svg{display:block;width:100%;height:auto}
.calc__svg text{fill:#fff;font-family:var(--font);font-size:18px;font-weight:600}
.calc__nozzle{fill:#C9D3DF}
.calc__fan{fill:rgba(200,16,46,.22);stroke:#E8364F;stroke-width:2;stroke-linejoin:round;transition:d .35s cubic-bezier(.2,.7,.2,1)}
.calc__arc,.calc__wline,.calc__hline{fill:none;stroke:var(--b4s-on-dark-2);stroke-width:1.5;transition:d .35s cubic-bezier(.2,.7,.2,1)}
.calc__surface{stroke:rgba(232,236,242,.35);stroke-width:1.5;stroke-dasharray:6 6}
.calc__legend{display:none;color:#fff;font-size:17px;font-weight:600;text-align:center}
.calc__note{max-width:560px;padding-top:20px;border-top:1px solid var(--b4s-dark-line);color:var(--b4s-on-dark-2);font-size:16px;line-height:1.55}
.calc__res{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;color:#fff}
.calc__res b{color:#fff;font-size:44px;font-weight:700;line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.calc__res span{font-size:20px;font-weight:600}
.calc__res small{flex-basis:100%;margin-top:6px;color:var(--b4s-on-dark-2);font-size:16px}
.calc__side{display:grid;gap:24px}
.calc__card{display:flex;flex-direction:column;gap:14px;padding:28px;border-radius:var(--radius);background:var(--b4s-ink-2);color:var(--b4s-on-dark-2)}
.calc__card h3{color:#fff;font-size:22px}
.calc__card .field label{color:var(--b4s-on-dark)}
.calc__card .input{background:#2C415C;color:#fff}
.calc__card .input:focus{background:#36506F}
.calc__card .input::placeholder{color:var(--b4s-on-dark-2)}
.calc__card select.input{padding-right:44px;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='%23E8ECF2' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.calc__card select.input option{background:#fff;color:var(--b4s-ink)}
.calc__row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.calc__row--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.calc__out{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-top:4px;padding-top:16px;border-top:1px solid var(--b4s-dark-line)}
.calc__out span{color:var(--b4s-on-dark)}
.calc__out output{color:#fff;font-size:30px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.calc__out output small{margin-left:6px;font-size:17px;font-weight:600}
.calc__f{color:var(--b4s-on-dark-2);font-size:16px}

/* ---------- EU: компании группы B4S в Европе (тёмная секция) ---------- */
.net__grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:stretch}
.net__mapbox{display:flex;align-items:center;justify-content:center;padding:0;border-radius:var(--radius);background:var(--b4s-ink-2);overflow:hidden}
.net__map{display:block;width:100%;height:auto}
.net__land path{fill:rgba(232,236,242,.09);stroke:var(--b4s-ink-2);stroke-width:1.2;stroke-linejoin:round}
.net__land path.net__hi{fill:rgba(232,236,242,.34)}
.net__links path{fill:none;stroke:#E8364F;stroke-width:2;stroke-dasharray:1 7;stroke-linecap:round}
.net__dot{fill:var(--b4s-red);stroke:#fff;stroke-width:2.5}
.net__halo{fill:var(--b4s-red);opacity:.3;transform-box:fill-box;transform-origin:center}
.js .net.is-in .net__halo{animation:ping 1.8s cubic-bezier(.2,.7,.2,1) 2 both}
.net__pt text{fill:#fff;font-family:var(--font);font-size:19px;font-weight:700;paint-order:stroke;stroke:var(--b4s-ink-2);stroke-width:5px;stroke-linejoin:round}
.net__list{display:flex;flex-direction:column}
.net__item{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;padding:22px 0;border-bottom:1px solid var(--b4s-dark-line)}
.net__item:first-child{padding-top:4px}
.net__pin{grid-row:1/span 3;display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:var(--radius);background:var(--b4s-ink-2);color:#fff}
.net__item:first-child .net__pin{background:var(--b4s-red)}
.net__item h3{color:#fff;font-size:20px}
.net__co{color:var(--b4s-on-dark);font-size:16px;font-weight:500}
.net__item p:not(.net__co){font-size:16px;line-height:1.55;color:var(--b4s-on-dark-2)}
.net__note{margin-top:auto;padding-top:22px;color:#fff;font-size:17px;font-weight:500}

/* ---------- AZ: neft-qaz və EPC ---------- */
.og__grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:stretch}
.og__photo{position:relative;min-height:520px;border-radius:var(--radius);overflow:hidden;background:var(--b4s-ink)}
.og__photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 50%}
.og__content{display:flex;flex-direction:column}
.og__tasks{margin-top:28px;border-top:1px solid var(--b4s-line-2)}
.og__task{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 24px;padding:20px 0;border-bottom:1px solid var(--b4s-line-2)}
.og__task h3{font-size:20px}
.og__task p{grid-column:1;font-size:16px;line-height:1.55}
.og__tags{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.og__tags a{display:inline-flex;align-items:center;height:36px;padding:0 12px;border-radius:var(--radius);background:#fff;color:var(--b4s-ink);font-size:16px;font-weight:500;transition:background-color .2s,color .2s}
.og__tags a:hover{background:var(--b4s-ink);color:#fff}
.og__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:28px}
.docs__text.epc{gap:0}
.epc__title{font-size:24px;line-height:1.25}
.docs__text.epc>p{margin-top:10px;font-size:17px}
.epc .epc__list{margin-top:20px}
.epc>.btn{align-self:flex-start;margin-top:24px}
.epc__list{counter-reset:epc;border-top:1px solid var(--b4s-line)}
.epc__list li{display:grid;grid-template-columns:52px 1fr;gap:4px 16px;padding:18px 0;border-bottom:1px solid var(--b4s-line)}
.epc__list li::before{counter-increment:epc;content:counter(epc,decimal-leading-zero);grid-row:1/span 2;color:var(--b4s-red);font-size:26px;font-weight:700;line-height:1.05;letter-spacing:-.02em}
.epc__list h4{color:var(--b4s-ink);font-size:19px;line-height:1.3}
.epc__list p{font-size:16px;line-height:1.55}

/* ---------- поп-ап ---------- */
.modal{width:min(640px,calc(100% - 32px));max-height:calc(100dvh - 32px);padding:0;border:0;border-radius:var(--radius);background:#fff;color:var(--b4s-text);overflow:auto;opacity:0;transform:translateY(16px) scale(.98);transition:opacity .25s ease,transform .3s cubic-bezier(.2,.7,.2,1)}
.modal[open].is-shown{opacity:1;transform:none}
.modal::backdrop{background:rgba(14,26,43,.66);opacity:0;transition:opacity .25s}
.modal.is-shown::backdrop{opacity:1}
.modal__in{position:relative;padding:40px}
.modal__close{position:absolute;top:16px;right:16px;width:48px;height:48px}
.modal h2{max-width:480px;font-size:30px}
.modal__sub{margin-top:10px;max-width:500px}
.modal__product{display:none;margin-top:20px;padding:14px 18px;border-radius:var(--radius);background:var(--b4s-soft);color:var(--b4s-ink);font-size:16px;line-height:1.5}
.modal__product.is-on{display:block}
.modal .input{background:var(--b4s-soft)}
.modal .input:focus{background:var(--b4s-soft-3)}
.modal .form__ok{background:var(--b4s-soft)}

/* ---------- мобильное меню ---------- */
.drawer{position:fixed;inset:0;z-index:100;visibility:hidden;transition:visibility 0s linear .3s}
.drawer.is-open{visibility:visible;transition:visibility 0s}
.drawer__bg{position:absolute;inset:0;background:rgba(14,26,43,.6);opacity:0;transition:opacity .3s}
.drawer.is-open .drawer__bg{opacity:1}
.drawer__panel{position:absolute;top:0;right:0;bottom:0;display:flex;flex-direction:column;width:min(440px,100%);background:#fff;transform:translateX(100%);transition:transform .35s cubic-bezier(.2,.7,.2,1);overflow-y:auto}
.drawer.is-open .drawer__panel{transform:none}
.drawer__head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--b4s-line)}
.drawer__logo{display:flex;align-items:center;justify-content:center;width:120px;height:56px;border-radius:var(--radius);background:var(--b4s-ink);color:#fff}
.drawer__logo svg{width:76px;height:auto}
.dnav{padding:8px 16px}
.dnav>li{border-bottom:1px solid var(--b4s-line)}
.dnav>li>a,.dnav summary{display:flex;align-items:center;justify-content:space-between;min-height:56px;color:var(--b4s-ink);font-size:18px;font-weight:600;cursor:pointer;list-style:none}
.dnav summary::-webkit-details-marker{display:none}
.dnav summary .i{transition:transform .25s}
.dnav details[open] summary .i{transform:rotate(180deg)}
.dnav details ul{overflow:hidden;padding-left:12px}
.dnav details li:last-child{padding-bottom:12px}
.dnav details a{display:block;padding:8px 0;color:var(--b4s-text);font-size:17px}
.drawer__foot{display:grid;gap:12px;margin-top:auto;padding:20px 16px 28px;background:var(--b4s-soft)}
.drawer__foot a.c{display:flex;align-items:center;gap:10px;color:var(--b4s-ink);font-weight:500}
.drawer__foot .lang{margin-top:4px}

/* =========================================================
   Адаптив: 1440 · 1024 · 768 · 390
   ========================================================= */
@media (max-width:1319px){
  .topbar__note{display:none}
  .hdr__nav{display:none}
  .burger{display:inline-flex}
  .hdr__in{justify-content:space-between}
  .hdr__actions{margin-left:auto}
}
@media (max-width:1279px){
  .hero{display:flex;flex-direction:column}
  .hero__media{position:relative;order:2;width:100%;height:360px;z-index:0}
  .hero__media img{object-position:20% 45%}
  .hero__media::after{background:linear-gradient(180deg,#0E1A2B 0%,rgba(14,26,43,.35) 30%,rgba(14,26,43,0) 60%)}
  .hero__in{min-height:0;padding-block:56px 32px}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px}
  .hero h1{font-size:46px}
  .cats__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cats__small .ccard h3 .i{display:none}
  .ccard--big{grid-row:span 1}
  .cats__all{grid-column:1/-1}
  .arts__grid{grid-template-columns:minmax(0,1fr)}
  .art-big{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .art-big__img{aspect-ratio:auto;min-height:300px}
  .art-big__body{justify-content:center}
  .art-list{grid-template-rows:none;grid-template-columns:repeat(3,minmax(0,1fr))}
  .art-sm{grid-template-columns:1fr;grid-template-rows:auto 1fr}
  .art-sm__img{aspect-ratio:16/9}
  .art-sm__body{justify-content:flex-start;padding:20px 24px 24px}
  .cats__all ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));column-gap:16px;row-gap:4px}
  .apanel{grid-template-columns:1fr;gap:32px}
  .apps__wrap{grid-template-columns:300px 1fr}
  .analog__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .analog__photo{grid-column:1/-1;min-height:300px}
  .analog__photo img{object-position:50% 55%}
  .prods{grid-template-columns:repeat(2,minmax(0,1fr))}
  .plate{grid-template-columns:1fr 460px;gap:40px;padding:48px}
  .foot__grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:40px}
}
@media (max-width:1023px){
  .topbar__hours{display:none}
  .sec-head{grid-template-columns:1fr;margin-bottom:40px}
  .sec-head>.btn{grid-column:1;grid-row:auto;justify-self:start;margin-top:24px}
  .sec-head h2,.h2{font-size:38px}
  .spanel{grid-template-columns:1fr}
  .cats__grid{grid-template-columns:minmax(0,1fr)}
  .ccard--big{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .ccard--big .ccard__img{min-height:300px;padding:24px}
  .ccard--big .ccard__body{justify-content:center}
  .apps__wrap{grid-template-columns:1fr}
  .apps__tabs{flex-direction:row;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .apps__tabs::-webkit-scrollbar{display:none}
  .apps__tab{flex:0 0 auto;white-space:nowrap}
  .apps__tab .i{display:none}
  .apanel{grid-template-columns:minmax(0,1fr);gap:28px}
  .fit{grid-template-columns:repeat(3,minmax(0,1fr))}
  .fit a{grid-template-columns:1fr;align-content:start}
  .cats__all ul{grid-template-columns:repeat(2,minmax(0,1fr))}
  .analog__grid{grid-template-columns:minmax(0,1fr)}
  .analog__photo{min-height:280px}
  .inds__grid{grid-template-columns:1fr}
  .inds__photo{min-height:300px}
  .why__grid{grid-template-columns:1fr;gap:40px}
  .why__photo{min-height:420px}
  .docs__grid{grid-template-columns:1fr;gap:40px}
  .faq__grid{grid-template-columns:minmax(0,1fr);gap:40px}
  .art-list{grid-template-columns:minmax(0,1fr)}
  .art-sm{grid-template-columns:240px minmax(0,1fr);grid-template-rows:none}
  .art-sm__img{aspect-ratio:auto;min-height:150px}
  .art-sm__body{justify-content:center}
  .art-big{display:flex}
  .art-big__img{aspect-ratio:2/1;min-height:0}
  .ask{position:static}
  .plate{grid-template-columns:1fr;gap:40px}
  .plate h2{font-size:36px}
}
@media (max-width:767px){
  body{font-size:17px}
  .topbar__in{height:44px}
  .topbar__list{gap:20px}
  .topbar__list .topbar__mail,.topbar__list .topbar__tg-txt{display:none}
  .topbar__list a{gap:6px}
  .topbar__right{gap:16px}
  .lang a{padding:0 7px}
  .hdr{padding-block:8px}
  .hdr__logo{flex-basis:112px}
  .hdr__logo svg{width:72px}
  .hdr__actions{padding-inline:4px;gap:4px}
  .hdr__actions .btn{display:none}
  .icon-btn{width:48px;height:48px}
  .hero h1{font-size:28px;line-height:1.16;letter-spacing:-.02em}
  .hero__media{height:260px}
  .hero__quick{color:var(--b4s-on-dark)}
  .nw{white-space:normal}
  .hero__lead{font-size:18px;margin-top:18px}
  .hero__in{padding-block:40px 28px}
  .hero__btns{flex-direction:column;margin-top:32px}
  .hero__btns .btn{width:100%}
  .spanel{margin-top:-88px}
  .spanel__search,.spanel__quick{padding:24px 20px}
  .sfield{flex-direction:column}
  .sfield .btn{width:100%}
  .spanel__quick .btn{align-self:stretch}
  .sec-head h2,.h2{font-size:25px;line-height:1.2}
  .sec-lead{font-size:17px}
  .sec-head .btn{width:100%}
  .cats{padding-top:64px}
  .cats__grid{grid-template-columns:minmax(0,1fr)}
  .ccard--big{display:flex}
  .ccard--big .ccard__img{height:260px;min-height:0;flex:0 0 auto}
  .ccard--big .ccard__body{padding:16px 20px 24px}
  .cats__small{gap:12px}
  .ccard__img{height:120px;padding:10px 12px 0}
  .ccard__body{padding:10px 14px 16px}
  .ccard h3{font-size:17px}
  .ccard h3 .i{display:none}
  .ccard p{font-size:16px}
  .cats__all ul{grid-template-columns:1fr}
  .apanel{grid-template-columns:1fr;padding:24px 20px;gap:28px}
  .fit{grid-template-columns:minmax(0,1fr)}
  .fit a{grid-template-columns:72px 1fr}
  .apanel h3{font-size:21px}
  .apanel__btns .btn{width:100%}
  .inds__list{grid-template-columns:1fr}
  .inds__photo{min-height:220px}
  .irow b{font-size:17px}
  .why__photo{min-height:340px}
  .htabs{grid-template-columns:1fr}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:28px}
  .fact__num{font-size:42px}
  .why__more .btn{width:100%}
  .analog__grid{grid-template-columns:1fr}
  .analog__photo{min-height:240px}
  .decoder,.fcard{padding:24px 20px}
  .decoder__code{font-size:24px}
  .decoder__code span{height:42px;padding:0 6px}
  .form__row{grid-template-columns:1fr}
  .prods{grid-template-columns:1fr}
  .prod__img{height:200px}
  .doc{grid-template-columns:44px 1fr auto;gap:14px}
  .doc__ic{width:44px;height:52px}
  .doc b{font-size:17px}
  .docs__req{flex-direction:column;align-items:stretch;padding:20px}
  .art-big{display:flex}
  .art-big__img{aspect-ratio:16/9;min-height:0}
  .art-big__body{padding:20px}
  .art-list{grid-template-columns:1fr}
  .art-big h3{font-size:22px}
  .art-sm{grid-template-columns:minmax(0,1fr)}
  .art-sm__img{aspect-ratio:16/9;min-height:0}
  .art-sm__img{aspect-ratio:16/9}
  .art-sm__body{padding:18px 20px 22px}
  .qa summary{font-size:17px}
  .qa__in{padding-right:0}
  .ask{padding:24px 20px}
  .plate{padding:28px 16px 16px;margin-bottom:-96px}
  .plate .fcard{padding:24px 16px}
  textarea.input{min-height:150px}
  .plate h2{font-size:25px}
  .plate__btns .btn{width:100%}
  .foot{padding-top:calc(96px + 56px)}
  .foot__grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .modal__in{padding:28px 20px}
  .modal h2{font-size:24px;padding-right:44px}
  .modal__close{top:12px;right:8px}
}
@media (max-width:420px){
  .hero h1{font-size:27px}
  .ccard p{display:none}
  .cats__small{grid-template-columns:repeat(2,minmax(0,1fr))}
  .topbar__list{gap:16px}
}
@media (max-width:374px){
  .hero h1{font-size:25px}
  .sec-head h2,.h2{font-size:24px}
}
/* ---------- адаптив новых блоков ---------- */
@media (max-width:1279px){
  .plate{grid-template-columns:1fr 460px;gap:40px;padding:48px}
  .flow{grid-template-columns:44px repeat(4,minmax(0,1fr)) 0;column-gap:16px}
  .fstep{padding:20px 20px 24px}
  .fstep h3{font-size:18px}
  .flow__start p{font-size:18px}
  .calc__grid,.net__grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .og__grid{gap:40px}
  .inds__grid--geo{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
  .inds__grid--geo .inds__list{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:1023px){
  .flow{grid-template-columns:minmax(0,1fr);row-gap:12px;padding-left:32px}
  .flow::before,.flow::after{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;border-radius:2px}
  .flow::before{background:var(--b4s-line-2)}
  .flow::after{background:var(--b4s-red);transform-origin:top;transform:scaleY(1)}
  .js .flow::after{transform:scaleY(0);transition:transform 1.6s cubic-bezier(.3,.6,.2,1)}
  .js .flow.is-in::after{transform:scaleY(1)}
  .flow__band,.flow__lane,.flow__svg{display:none}
  .fstep,.flow__start,.fstep:nth-child(n){grid-column:1;grid-row:auto;margin:0}
  .fstep::before{content:"";position:absolute;left:-30px;top:26px;width:12px;height:12px;border-radius:50%;background:var(--b4s-soft);border:2px solid var(--b4s-line-2);transition:background-color .4s,border-color .4s}
  .fstep.is-lit::before{background:var(--b4s-red);border-color:var(--b4s-red)}
  .fstep--you{background:#fff}
  .fstep__who{position:static;width:auto;height:auto;overflow:visible;clip:auto;display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:var(--radius);font-size:16px;font-weight:500;line-height:1}
  .fstep--you .fstep__who{background:var(--b4s-soft-2);color:var(--b4s-ink)}
  .fstep--b4s .fstep__who{background:rgba(255,255,255,.1);color:#fff}
  .flow__start{margin-top:12px;padding:24px;border-radius:var(--radius);background:#fff}
  .plate{grid-template-columns:1fr;gap:40px}
  .plate__bg::after{background:linear-gradient(180deg,rgba(14,26,43,.93) 0%,rgba(14,26,43,.86) 55%,rgba(14,26,43,.7) 100%)}
  .calc__grid,.net__grid,.og__grid{grid-template-columns:minmax(0,1fr)}
  .og__photo{min-height:360px}
  .inds__grid--geo{grid-template-columns:minmax(0,1fr)}
  .inds__grid--geo .inds__list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .geo{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:center;column-gap:28px}
  .geo h3,.geo__note{grid-column:1/-1}
  .geo__note{margin-top:0}
}
@media (max-width:767px){
  .flow{padding-left:28px}
  .fstep{padding:18px 16px 20px}
  .fstep::before{left:-26px}
  .flow::before,.flow::after{left:5px}
  .flow__start{padding:20px 16px}
  .flow__start .btn{width:100%}
  .flow__start p{font-size:18px}
  .plate__btns .btn{width:100%}
  .people{grid-template-columns:minmax(0,1fr)}
  .calc__viz,.calc__card{padding:20px 16px}
  .calc__svg text{display:none}
  .calc__legend{display:block}
  .calc__res b{font-size:36px}
  .calc__row--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .calc__row--3 .field:last-child{grid-column:1/-1}
  .net__mapbox{padding:0}
  .net__pt text{font-size:27px;stroke-width:6px}
  .og__photo{min-height:260px}
  .og__task{grid-template-columns:minmax(0,1fr)}
  .og__btns .btn,.epc>.btn{width:100%}
  .epc__list li{grid-template-columns:44px 1fr;gap:4px 12px}
  .epc__list li::before{font-size:22px}
  .geo{display:flex;padding:20px 16px}
  .inds__grid--geo .inds__list{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;transition-delay:0s!important}
  .js .hero__media img{transform:none}
  .calc__fan,.calc__arc,.calc__wline{transition:none}
}