/* ============================================================
   HENSTER — hardener.cnguoke.cn
   Дизайн-система · тёмный премиальный B2B + светлые секции
   ============================================================ */
:root{
  --ink:#0A1013;
  --ink-2:#0E171B;
  --ink-3:#132027;
  --ink-line:rgba(255,255,255,.10);
  --paper:#F4F6F5;
  --card:#FFFFFF;
  --text:#1C272C;
  --muted:#5D6D74;
  --muted-2:#8B989D;
  --line:#E2E8E7;
  --teal:#12A08A;
  --teal-bright:#1FC9AC;
  --teal-dark:#0B7A69;
  --teal-soft:rgba(18,160,138,.09);
  --gold:#C6A15B;
  --gold-soft:rgba(198,161,91,.16);
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 24px 60px -24px rgba(9,26,32,.28);
  --shadow-sm:0 10px 30px -12px rgba(9,26,32,.22);
  --font-body:'Inter','Segoe UI','Helvetica Neue',Arial,'Noto Sans',sans-serif;
  --font-display:Georgia,'Noto Serif','Times New Roman',serif;
  --container:1220px;
  --header-h:76px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px)}
body{
  font-family:var(--font-body);
  color:var(--text);
  background:var(--paper);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font:inherit;color:inherit}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.container--wide{max-width:1360px}

/* ---------- Типографика ---------- */
h1,h2,h3,h4{font-weight:600;line-height:1.22;letter-spacing:-.01em}
.h-display{font-family:var(--font-display);font-weight:500}
h1{font-family:var(--font-display);font-size:clamp(34px,4.6vw,60px);font-weight:500}
h2{font-family:var(--font-display);font-size:clamp(28px,3.4vw,42px);font-weight:500}
h3{font-size:clamp(19px,2vw,23px)}
p{color:var(--muted)}
.lead{font-size:clamp(16px,1.6vw,19px);line-height:1.75}
.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-size:12.5px;font-weight:700;letter-spacing:.22em;text-transform:uppercase;
  color:var(--teal-dark);
}
.eyebrow::before{content:"";width:34px;height:2px;background:var(--gold);flex:0 0 auto}
.eyebrow--light{color:var(--teal-bright)}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin:14px 0 16px}
.section-head--light .eyebrow{color:var(--teal-bright)}
.section-head--light h2{color:#F2F5F4}
.section-head--light p{color:#9AAA B0}
.section-head--light p{color:#9AAAB0}

/* ---------- Кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;border-radius:999px;font-weight:600;font-size:15px;
  letter-spacing:.02em;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s;
  border:1px solid transparent;white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:0 0 auto}
.btn--primary{background:var(--teal);color:#fff;box-shadow:0 14px 30px -12px rgba(18,160,138,.55)}
.btn--primary:hover{background:var(--teal-dark);transform:translateY(-2px)}
.btn--ghost-light{border-color:rgba(255,255,255,.35);color:#fff}
.btn--ghost-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn--ghost{border-color:#C7D1CF;color:var(--text)}
.btn--ghost:hover{border-color:var(--teal);color:var(--teal-dark);transform:translateY(-2px)}
.btn--gold{background:var(--gold);color:#171106}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(198,161,91,.6)}
.btn--sm{padding:11px 22px;font-size:14px}

/* ---------- Шапка ---------- */
.site-header{
  position:fixed;inset:0 0 auto;z-index:100;height:var(--header-h);
  transition:background .25s ease,box-shadow .25s ease,height .25s ease;
  background:transparent;border-bottom:1px solid transparent;
}
.site-header .container{display:flex;align-items:center;gap:36px;height:100%}
.site-header.is-solid{
  background:rgba(9,15,18,.92);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom-color:var(--ink-line);
  box-shadow:0 10px 40px -18px rgba(0,0,0,.55);
}
.logo img{height:46px;width:auto}
.nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav > li{position:relative}
.nav > li > a{
  display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:10px;
  color:#D7E0E2;font-weight:500;font-size:15px;transition:color .15s,background .15s;
}
.nav > li > a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav > li > a.active{color:var(--teal-bright)}
.nav > li > a .caret{width:14px;height:14px;opacity:.7;transition:transform .2s}
.nav > li:hover > a .caret{transform:rotate(180deg)}
.dropdown{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translate(-50%,8px);
  min-width:300px;background:#0F191E;border:1px solid var(--ink-line);
  border-radius:14px;padding:10px;opacity:0;visibility:hidden;
  transition:opacity .2s,transform .2s,visibility .2s;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.6);
}
.nav > li:hover .dropdown{opacity:1;visibility:visible;transform:translate(-50%,0)}
.dropdown a{
  display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:10px;
  color:#C6D2D5;font-size:14.5px;transition:background .15s,color .15s;
}
.dropdown a:hover{background:rgba(31,201,172,.12);color:#fff}
.dropdown a .dot{width:8px;height:8px;border-radius:50%;background:var(--teal);flex:0 0 auto}
.dropdown .drop-all{border-top:1px solid var(--ink-line);margin-top:8px;padding-top:10px;color:var(--teal-bright);font-weight:600}
.header-cta{margin-left:6px}
.burger{display:none;margin-left:auto;width:46px;height:46px;border-radius:12px;
  border:1px solid rgba(255,255,255,.25);color:#fff;position:relative}
.burger span{position:absolute;left:12px;right:12px;height:2px;background:#fff;transition:.25s}
.burger span:nth-child(1){top:15px}.burger span:nth-child(2){top:22px}.burger span:nth-child(3){top:29px}
.burger.open span:nth-child(1){top:22px;transform:rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){top:22px;transform:rotate(-45deg)}

/* ---------- Герой (главная) ---------- */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  color:#fff;background:var(--ink);overflow:hidden;isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url("/img/banner.jpg") center/cover no-repeat;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(92deg,rgba(5,9,11,.9) 8%,rgba(5,9,11,.62) 46%,rgba(5,9,11,.15) 78%);
}
.hero-inner{max-width:820px;padding:calc(var(--header-h) + 64px) 0 96px}
.hero h1{color:#F5F8F7;margin:20px 0 22px}
.hero h1 em{font-style:normal;color:var(--teal-bright)}
.hero .lead{color:#A9B7BC;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:70px;
  border-top:1px solid rgba(255,255,255,.16);max-width:860px;
}
.hero-stats > div{padding:24px 26px 4px;border-right:1px solid rgba(255,255,255,.16)}
.hero-stats > div:last-child{border-right:none}
.hero-stats .num{font-family:var(--font-display);font-size:clamp(26px,2.6vw,36px);color:#fff;line-height:1.1}
.hero-stats .num sup{font-size:.5em;color:var(--teal-bright)}
.hero-stats .lbl{font-size:13px;color:#8FA0A6;margin-top:8px;letter-spacing:.04em}

/* ---------- Внутренний герой ---------- */
.page-hero{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;isolation:isolate;
  padding:calc(var(--header-h) + 76px) 0 70px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;opacity:.5;
  background:radial-gradient(760px 420px at 78% 10%,rgba(24,180,158,.24),transparent 62%),
             radial-gradient(600px 380px at 6% 96%,rgba(198,161,91,.14),transparent 60%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:url("/img/banner.jpg") right -120px center/cover no-repeat;opacity:.30;
}
.page-hero h1{color:#F5F8F7;margin:16px 0 14px;max-width:820px}
.page-hero .lead{color:#A9B7BC;max-width:680px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:13.5px;color:#8FA0A6}
.breadcrumbs a{color:#B9C6C9;transition:color .15s}
.breadcrumbs a:hover{color:var(--teal-bright)}
.breadcrumbs li+li::before{content:"/";margin-right:8px;opacity:.5}

/* ---------- Секции-обёртки ---------- */
.section--paper{background:var(--paper)}
.section--white{background:#FAFBFA}
.section--dark{background:var(--ink);color:#E9EEEF;position:relative;isolation:isolate;overflow:hidden}
.section--dark p{color:#93A3AA}

/* ---------- О компании (превью) ---------- */
.about-preview{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.about-preview__media{position:relative}
.about-preview__media img{border-radius:var(--radius);box-shadow:var(--shadow)}
.about-preview__media .stamp{
  position:absolute;left:-28px;bottom:-30px;background:var(--ink);color:#fff;
  border-radius:var(--radius);padding:26px 30px;box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.08);min-width:210px;
}
.about-preview__media .stamp .num{font-family:var(--font-display);font-size:38px;color:var(--teal-bright)}
.about-preview__media .stamp .lbl{font-size:13px;color:#9AAAB0;margin-top:4px}
.about-preview__text h2{margin:14px 0 18px}
.about-preview__text p+p{margin-top:14px}
.about-preview__text .btn{margin-top:28px}
.checklist{margin-top:26px;display:grid;gap:12px}
.checklist li{display:flex;gap:12px;align-items:flex-start;color:var(--text);font-weight:500}
.checklist li svg{width:20px;height:20px;flex:0 0 auto;margin-top:3px;color:var(--teal)}

/* ---------- Числа ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;box-shadow:var(--shadow-sm);transition:transform .2s}
.metric:hover{transform:translateY(-4px)}
.metric .num{font-family:var(--font-display);font-size:clamp(30px,3vw,42px);color:var(--ink);line-height:1.05}
.metric .num span{color:var(--teal)}
.metric .lbl{margin-top:10px;color:var(--muted);font-size:14.5px}
.section--dark .metric{background:#101B20;border-color:var(--ink-line);box-shadow:none}
.section--dark .metric .num{color:#F2F5F4}
.section--dark .metric .lbl{color:#8FA0A6}

/* ---------- Фильтр продукции ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:44px}
.chip{
  padding:10px 20px;border-radius:999px;border:1px solid #C9D3D1;background:transparent;
  color:var(--muted);font-weight:600;font-size:14px;transition:.18s;
}
.chip:hover{border-color:var(--teal);color:var(--teal-dark)}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff}

/* ---------- Карточки продукции ---------- */
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.p-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.p-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.p-card__media{position:relative;background:#EDF0F0;aspect-ratio:4/3;overflow:hidden}
.p-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.p-card:hover .p-card__media img{transform:scale(1.045)}
.p-card__cat{
  position:absolute;top:16px;left:16px;background:rgba(9,15,18,.82);color:#fff;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  padding:7px 14px;border-radius:999px;
}
.p-card__body{padding:24px 26px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.p-card__code{
  font-size:12.5px;font-weight:700;letter-spacing:.18em;color:var(--teal-dark);text-transform:uppercase;
}
.p-card__title{font-family:var(--font-display);font-size:21px;font-weight:500;color:var(--ink);line-height:1.3}
.p-card__text{font-size:14.5px;color:var(--muted);flex:1}
.p-card__more{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--teal-dark);font-size:14.5px;margin-top:6px}
.p-card__more svg{width:15px;height:15px;transition:transform .2s}
.p-card:hover .p-card__more svg{transform:translateX(4px)}
.products-grid.is-hidden-card{display:none}
.p-card.is-hidden{display:none}

/* ---------- Преимущества ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.adv{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 30px;box-shadow:var(--shadow-sm);transition:transform .2s;
}
.adv:hover{transform:translateY(-4px)}
.adv .idx{
  position:absolute;top:26px;right:28px;font-family:var(--font-display);
  font-size:44px;color:#E8EDEB;line-height:1;
}
.adv svg{width:34px;height:34px;color:var(--teal)}
.adv h3{margin:18px 0 10px;font-size:19px}
.adv p{font-size:14.5px}
.section--dark .adv{background:#101B20;border-color:var(--ink-line);box-shadow:none}
.section--dark .adv .idx{color:rgba(255,255,255,.07)}

/* ---------- Производство / таймлайн ---------- */
.prod-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:64px}
.prod-layout figure{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.prod-layout figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:3/2;transition:transform .5s}
.prod-layout figure:hover img{transform:scale(1.04)}
.prod-layout figcaption{
  position:absolute;left:20px;bottom:20px;right:20px;color:#fff;font-size:14px;font-weight:600;
  background:rgba(9,15,18,.7);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  padding:12px 18px;border-radius:12px;border:1px solid rgba(255,255,255,.12);
}
.timeline{position:relative;max-width:920px;margin:0 auto;padding-left:36px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--teal),var(--gold))}
.tl-item{position:relative;padding:0 0 40px 24px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-36px;top:8px;width:18px;height:18px;border-radius:50%;
  background:var(--ink);border:3px solid var(--teal);
}
.tl-item:nth-child(even)::before{border-color:var(--gold)}
.tl-item .year{font-family:var(--font-display);font-size:26px;color:var(--teal-bright);line-height:1.1}
.tl-item:nth-child(even) .year{color:var(--gold)}
.tl-item p{margin-top:6px;max-width:640px}

/* ---------- Патенты ---------- */
.patents-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.patents-grid figure{
  position:relative;border-radius:var(--radius-sm);overflow:hidden;
  box-shadow:var(--shadow-sm);border:1px solid var(--line);transition:transform .2s;
}
.patents-grid figure:hover{transform:translateY(-5px)}
.patents-grid img{aspect-ratio:76/100;object-fit:cover;width:100%}
.patents-note{margin-top:26px;font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
details.faq{
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:0;overflow:hidden;transition:box-shadow .2s;
}
details.faq[open]{box-shadow:var(--shadow-sm)}
details.faq summary{
  list-style:none;display:flex;gap:16px;align-items:center;justify-content:space-between;
  padding:22px 26px;font-weight:600;color:var(--ink);cursor:pointer;font-size:16.5px;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary .plus{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;border:1.5px solid #C9D3D1;
  position:relative;transition:.2s;
}
details.faq summary .plus::before,details.faq summary .plus::after{
  content:"";position:absolute;left:50%;top:50%;width:12px;height:2px;background:var(--teal-dark);
  transform:translate(-50%,-50%);transition:transform .2s;
}
details.faq summary .plus::after{transform:translate(-50%,-50%) rotate(90deg)}
details.faq[open] summary .plus{border-color:var(--teal);background:var(--teal-soft)}
details.faq[open] summary .plus::after{transform:translate(-50%,-50%) rotate(0)}
details.faq .faq-body{padding:0 26px 24px;color:var(--muted);font-size:15px}
details.faq .faq-body p+p{margin-top:10px}

/* ---------- CTA + форма ---------- */
.cta-block{
  position:relative;background:var(--ink);color:#fff;border-radius:24px;overflow:hidden;
  isolation:isolate;padding:64px 60px;display:grid;grid-template-columns:1fr 1fr;gap:56px;
}
.cta-block::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(560px 340px at 88% 0%,rgba(24,180,158,.22),transparent 62%),
             radial-gradient(420px 300px at 4% 100%,rgba(198,161,91,.14),transparent 60%);
}
.cta-block h2{color:#F5F8F7;margin:14px 0 16px}
.cta-block .lead{color:#A9B7BC;font-size:16.5px}
.cta-points{margin-top:28px;display:grid;gap:14px}
.cta-points li{display:flex;gap:12px;align-items:flex-start;color:#C6D2D5;font-size:15px}
.cta-points svg{width:20px;height:20px;color:var(--teal-bright);flex:0 0 auto;margin-top:2px}

.form{display:grid;gap:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:7px}
.field label{font-size:13px;font-weight:600;letter-spacing:.05em;color:#9AAAB0;text-transform:uppercase}
.field label b{color:var(--teal-bright)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.16);
  border-radius:12px;padding:14px 16px;color:#F2F5F4;transition:border .15s,background .15s;
  font-size:15px;
}
.field input::placeholder,.field textarea::placeholder{color:#6E7F86}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--teal-bright);background:rgba(31,201,172,.07);
}
.field select{appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%239AAAB0' stroke-width='2'%3E%3Cpath d='M2 4l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;padding-right:44px}
.field select option{background:#0E171B;color:#F2F5F4}
.field textarea{min-height:110px;resize:vertical}
.form .btn{justify-self:start;margin-top:4px}
.form-note{font-size:12.5px;color:#7E8F96;line-height:1.55}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:#8FA0A6;line-height:1.5}
.consent input{width:18px;height:18px;margin-top:2px;accent-color:var(--teal);flex:0 0 auto}
/* honeypot — физически скрыт, но не display:none (для ботов-парсеров) */
.hp-field{position:absolute !important;left:-9999px !important;top:-9999px !important;
  width:1px;height:1px;overflow:hidden;opacity:0}
.form-success{
  display:none;background:rgba(31,201,172,.10);border:1px solid rgba(31,201,172,.4);
  border-radius:16px;padding:34px 30px;text-align:center;
}
.form-success.show{display:block;animation:fadeUp .45s ease}
.form-success .ok-ico{
  width:62px;height:62px;margin:0 auto 18px;border-radius:50%;background:var(--teal);
  display:flex;align-items:center;justify-content:center;box-shadow:0 14px 30px -10px rgba(18,160,138,.6);
}
.form-success .ok-ico svg{width:30px;height:30px;color:#fff}
.form-success h3{color:#fff;margin-bottom:10px}
.form-success p{color:#A9B7BC;font-size:15px}
.form-status{font-size:14px;color:#F0B7AE;display:none}
.form-status.show{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- Страница продукта ---------- */
.prod-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.prod-hero__media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:#EDF0F0}
.prod-hero__media img{width:100%;aspect-ratio:1/1;object-fit:cover}
.prod-hero__code{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--teal-dark);background:var(--teal-soft);border:1px solid rgba(18,160,138,.3);
  padding:8px 16px;border-radius:999px;
}
.prod-hero h1{margin:18px 0 16px}
.prod-hero .lead{max-width:600px}
.prod-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.prod-hero__facts{margin-top:34px;display:grid;grid-template-columns:repeat(3,auto);gap:14px 34px;width:max-content}
.prod-hero__facts div{font-size:13.5px;color:var(--muted)}
.prod-hero__facts div b{display:block;color:var(--ink);font-size:15px}

.content-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:start}
.content-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:34px 36px;box-shadow:var(--shadow-sm)}
.content-card h3{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.content-card h3 svg{width:22px;height:22px;color:var(--teal)}
.content-card p{font-size:15px}
.content-card p+p{margin-top:12px}
.tick-list{display:grid;gap:11px}
.tick-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text)}
.tick-list li svg{width:18px;height:18px;color:var(--teal);flex:0 0 auto;margin-top:4px}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:6px}
.chips span{background:var(--teal-soft);color:var(--teal-dark);border:1px solid rgba(18,160,138,.25);
  border-radius:999px;padding:7px 16px;font-size:13.5px;font-weight:600}

.spec-table{width:100%;border-collapse:collapse;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm)}
.spec-wrap{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.spec-wrap table{width:100%;border-collapse:collapse;background:var(--card)}
.spec-wrap th,.spec-wrap td{padding:15px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
.spec-wrap th{width:34%;background:#F6F8F7;color:var(--ink);font-weight:600;vertical-align:top}
.spec-wrap td{color:var(--muted)}
.spec-wrap tr:last-child th,.spec-wrap tr:last-child td{border-bottom:none}
.spec-note{margin-top:16px;font-size:13.5px;color:var(--muted-2)}
.spec-note b{color:var(--teal-dark)}

.related h3{margin-bottom:26px}
.notice{
  display:flex;gap:14px;background:var(--gold-soft);border:1px solid rgba(198,161,91,.4);
  border-radius:14px;padding:20px 24px;font-size:14px;color:#6B5626;margin-top:28px;
}
.notice svg{width:20px;height:20px;flex:0 0 auto;margin-top:2px;color:#A5833F}

/* ---------- Контакты ---------- */
.contact-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:start}
.contact-info h2{margin:14px 0 18px}
.contact-steps{margin-top:30px;display:grid;gap:22px}
.c-step{display:flex;gap:18px;align-items:flex-start}
.c-step .n{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:var(--ink);color:var(--teal-bright);
  font-family:var(--font-display);font-size:19px;display:flex;align-items:center;justify-content:center;
}
.c-step h3{font-size:16.5px;margin-bottom:4px}
.c-step p{font-size:14.5px}
.form-panel{background:var(--ink);border-radius:24px;padding:44px 42px;position:relative;overflow:hidden;isolation:isolate}
.form-panel::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(420px 260px at 90% 0%,rgba(24,180,158,.20),transparent 60%);
}
.form-panel h2{color:#F5F8F7;font-size:26px;margin-bottom:8px}
.form-panel .sub{color:#9AAAB0;font-size:14.5px;margin-bottom:26px}

/* ---------- Подвал ---------- */
.site-footer{background:var(--ink);color:#B9C6C9;position:relative;isolation:isolate;overflow:hidden}
.site-footer::before{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.5;
  background:radial-gradient(700px 360px at 92% 0%,rgba(24,180,158,.10),transparent 60%),
             radial-gradient(520px 300px at 0% 100%,rgba(198,161,91,.08),transparent 60%);
}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:48px;padding:72px 0 56px}
.footer-top .logo img{height:52px;margin-bottom:20px}
.footer-about p{font-size:14.5px;color:#8FA0A6;max-width:320px}
.footer-col h4{color:#F2F5F4;font-size:15px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:20px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14.5px;color:#9AAAB0;transition:color .15s}
.footer-col a:hover{color:var(--teal-bright)}
.footer-form-note{font-size:13.5px;color:#8FA0A6;background:rgba(255,255,255,.05);
  border:1px solid var(--ink-line);border-radius:14px;padding:18px 20px;margin-top:18px}
.footer-form-note b{color:var(--teal-bright)}
.footer-bottom{
  border-top:1px solid var(--ink-line);padding:24px 0;display:flex;flex-wrap:wrap;gap:14px;
  justify-content:space-between;align-items:center;font-size:13px;color:#7E8F96;
}
.footer-bottom a{color:#9AAAB0}
.footer-bottom a:hover{color:var(--teal-bright)}

/* ---------- Прочее ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;width:50px;height:50px;border-radius:50%;
  background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);opacity:0;visibility:hidden;transform:translateY(12px);transition:.25s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top svg{width:20px;height:20px}
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}
.js .reveal-d1{transition-delay:.08s}.js .reveal-d2{transition-delay:.16s}.js .reveal-d3{transition-delay:.24s}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--teal);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid var(--teal-bright);outline-offset:2px}

/* ---------- Адаптив ---------- */
@media (max-width:1080px){
  .products-grid{grid-template-columns:repeat(2,1fr)}
  .patents-grid{grid-template-columns:repeat(3,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stats > div{border-bottom:1px solid rgba(255,255,255,.16);padding-bottom:18px}
  .about-preview{grid-template-columns:1fr;gap:44px}
  .prod-hero{grid-template-columns:1fr;gap:44px}
  .content-cols{grid-template-columns:1fr}
  .contact-layout{grid-template-columns:1fr}
  .prod-layout{grid-template-columns:1fr}
}
@media (max-width:860px){
  .nav{
    position:fixed;inset:var(--header-h) 0 auto 0;background:#0B1216;
    flex-direction:column;align-items:stretch;gap:2px;padding:18px 24px 28px;
    transform:translateY(-12px);opacity:0;visibility:hidden;transition:.25s;
    border-bottom:1px solid var(--ink-line);box-shadow:0 40px 60px -20px rgba(0,0,0,.6);
    max-height:calc(100vh - var(--header-h));overflow:auto;z-index:99;
  }
  .nav.open{transform:none;opacity:1;visibility:visible}
  .nav > li > a{padding:14px 12px;font-size:16px;border-radius:12px}
  .dropdown{
    position:static;transform:none;opacity:1;visibility:visible;min-width:0;
    background:transparent;border:none;box-shadow:none;padding:0 0 6px 16px;display:none;
  }
  .nav > li:hover .dropdown{display:none}
  .nav > li.drop-open .dropdown{display:block}
  .header-cta{display:none}
  .burger{display:block}
  .cta-block{grid-template-columns:1fr;padding:48px 30px;gap:36px}
  .form-row{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:1fr}
  .section{padding:72px 0}
  .patents-grid{grid-template-columns:repeat(2,1fr)}
  .prod-hero__facts{grid-template-columns:1fr;width:100%}
}
@media (max-width:600px){
  .products-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .hero-stats > div{padding:20px 18px 4px}
  .footer-top{grid-template-columns:1fr;gap:36px}
  .form-panel{padding:34px 24px}
  .patents-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .metrics{grid-template-columns:1fr 1fr;gap:14px}
  .metric{padding:22px 20px}
  .logo img{height:40px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}