/* ===============================================================
   Hongsheng Radiator — Global Stylesheet
   Домен: radiator.cnguoke.cn
   =============================================================== */

:root{
  --ink:#0b0f14;
  --ink-2:#121a24;
  --steel:#1b2531;
  --line:rgba(255,255,255,.10);
  --copper:#c8873f;
  --copper-2:#e3a95f;
  --copper-soft:rgba(200,135,63,.12);
  --paper:#f5f4f1;
  --paper-2:#eceae5;
  --text:#1c232b;
  --muted:#6b7480;
  --white:#ffffff;
  --radius:4px;
  --shadow:0 24px 60px -30px rgba(11,15,20,.45);
  --maxw:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font: "Inter","Helvetica Neue",Arial,"PT Sans",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.72;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;}
h1,h2,h3,h4,h5{
  font-weight:700;
  line-height:1.18;
  letter-spacing:-.02em;
  margin:0 0 .6em;
  color:var(--ink);
}
h1{font-size:clamp(2.1rem,4.6vw,4.05rem);letter-spacing:-.035em;}
h2{font-size:clamp(1.6rem,2.9vw,2.6rem);letter-spacing:-.028em;}
h3{font-size:clamp(1.15rem,1.7vw,1.42rem);}
h4{font-size:1.02rem;letter-spacing:0;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.15em;}
li{margin-bottom:.42em;}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:9999;
  background:var(--ink);color:#fff;padding:14px 22px;border-radius:0 0 4px 0;
}
.skip-link:focus{left:0;}

/* ---------------- Layout ---------------- */
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:clamp(56px,8vw,116px) 0;}
.section--tight{padding:clamp(44px,5.5vw,72px) 0;}
.section--dark{background:var(--ink);color:rgba(255,255,255,.72);}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff;}
.section--paper2{background:var(--paper-2);}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.74rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--copper);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--copper);display:block;}
.section--dark .eyebrow{color:var(--copper-2);}
.section--dark .eyebrow::before{background:var(--copper-2);}

.lead{font-size:clamp(1.02rem,1.35vw,1.16rem);color:var(--muted);max-width:62ch;line-height:1.78;}
.section--dark .lead{color:rgba(255,255,255,.66);}

.section-head{max-width:760px;margin-bottom:clamp(34px,4.5vw,58px);}

/* ---------------- Header ---------------- */
.header{
  position:sticky;top:0;z-index:900;
  background:rgba(11,15,20,.86);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s var(--ease);
}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand img{width:40px;height:40px;border-radius:3px;object-fit:cover;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__name{font-size:.93rem;font-weight:700;color:#fff;letter-spacing:.1em;text-transform:uppercase;}
.brand__sub{font-size:.66rem;color:rgba(255,255,255,.45);letter-spacing:.16em;text-transform:uppercase;}

.nav{display:flex;align-items:center;gap:2px;}
.nav a{
  position:relative;display:block;padding:10px 15px;
  font-size:.87rem;font-weight:500;color:rgba(255,255,255,.72);
  border-radius:3px;transition:color .25s var(--ease);
}
.nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:4px;height:1px;
  background:var(--copper);transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav a:hover,.nav a:focus-visible{color:#fff;}
.nav a:hover::after,.nav a:focus-visible::after,.nav a[aria-current="page"]::after{transform:scaleX(1);}
.nav a[aria-current="page"]{color:#fff;}

.header__cta{display:flex;align-items:center;gap:12px;}

.burger{
  display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.18);
  background:transparent;border-radius:3px;cursor:pointer;position:relative;
}
.burger span{
  position:absolute;left:12px;right:12px;height:1.5px;background:#fff;
  transition:transform .3s var(--ease),opacity .2s;
}
.burger span:nth-child(1){top:16px;}
.burger span:nth-child(2){top:21.5px;}
.burger span:nth-child(3){top:27px;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;border-radius:3px;border:1px solid transparent;
  font-size:.87rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  cursor:pointer;transition:all .3s var(--ease);text-align:center;
}
.ico{
  display:inline-block;width:13px;height:13px;flex-shrink:0;position:relative;
  transition:transform .3s var(--ease);
}
.ico::before,.ico::after{content:"";position:absolute;background:currentColor;}
.ico::before{left:0;right:2px;top:50%;height:1.4px;transform:translateY(-50%);}
.ico::after{
  width:7px;height:7px;right:0;top:50%;background:none;
  border-top:1.4px solid currentColor;border-right:1.4px solid currentColor;
  transform:translateY(-50%) rotate(45deg);
}
.btn:hover .ico,.card__link:hover .ico{transform:translateX(4px);}
.btn--primary{background:var(--copper);color:#fff;border-color:var(--copper);}
.btn--primary:hover,.btn--primary:focus-visible{background:var(--copper-2);border-color:var(--copper-2);box-shadow:0 14px 34px -14px rgba(200,135,63,.75);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28);}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:#fff;background:rgba(255,255,255,.07);}
.btn--dark{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn--dark:hover{background:#1f2a37;border-color:#1f2a37;}
.btn--sm{padding:11px 20px;font-size:.78rem;}
.btn--block{width:100%;}

/* ---------------- Hero ---------------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink);color:rgba(255,255,255,.7);
  padding:clamp(64px,9vw,130px) 0 clamp(72px,10vw,140px);
  isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(880px 460px at 78% 12%,rgba(200,135,63,.20),transparent 62%),
    radial-gradient(700px 500px at 4% 92%,rgba(46,96,150,.20),transparent 64%),
    linear-gradient(180deg,#0b0f14 0%,#111923 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.28;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:74px 74px;
  mask-image:radial-gradient(circle at 50% 30%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 10%,transparent 78%);
}
.hero__grid{
  display:grid;grid-template-columns:1.06fr .94fr;gap:clamp(36px,5vw,76px);align-items:center;
}
.hero h1{color:#fff;margin-bottom:24px;}
.hero h1 em{font-style:normal;color:var(--copper-2);}
.hero p{color:rgba(255,255,255,.68);font-size:clamp(1rem,1.35vw,1.13rem);max-width:54ch;line-height:1.8;}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero__media{position:relative;}
.hero__media img{
  width:100%;border-radius:4px;box-shadow:0 40px 90px -40px rgba(0,0,0,.85);
  border:1px solid rgba(255,255,255,.10);
}
.hero__badge{
  position:absolute;left:-22px;bottom:-26px;
  background:var(--copper);color:#fff;padding:20px 26px;border-radius:3px;
  box-shadow:0 24px 50px -22px rgba(0,0,0,.6);
}
.hero__badge strong{display:block;font-size:1.85rem;line-height:1;letter-spacing:-.03em;}
.hero__badge span{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;opacity:.9;}

/* Page hero (inner pages) */
.page-hero{
  position:relative;background:var(--ink);color:rgba(255,255,255,.66);
  padding:clamp(48px,7vw,96px) 0 clamp(44px,6vw,78px);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(760px 360px at 82% 0%,rgba(200,135,63,.20),transparent 66%);
}
.page-hero h1{color:#fff;position:relative;margin-bottom:16px;font-size:clamp(1.9rem,3.9vw,3.2rem);}
.page-hero p{position:relative;max-width:64ch;color:rgba(255,255,255,.66);margin:0;}
.breadcrumb{
  position:relative;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:.78rem;color:rgba(255,255,255,.42);margin-bottom:20px;padding:0;list-style:none;
}
.breadcrumb li{margin:0;display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.22);}
.breadcrumb a{color:rgba(255,255,255,.62);}
.breadcrumb a:hover{color:var(--copper-2);}

/* ---------------- Stats ---------------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.stat{padding:34px 24px 0;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat strong{display:block;font-size:clamp(1.9rem,3.4vw,2.9rem);line-height:1;letter-spacing:-.04em;color:#fff;font-weight:700;}
.stat strong small{font-size:.5em;color:var(--copper-2);font-weight:600;margin-left:4px;}
.stat span{display:block;margin-top:12px;font-size:.79rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.45);}

/* ---------------- Cards / products ---------------- */
.grid{display:grid;gap:clamp(18px,2.4vw,30px);}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--2{grid-template-columns:repeat(2,1fr);}
.grid--4{grid-template-columns:repeat(4,1fr);}

.card{
  background:#fff;border-radius:4px;overflow:hidden;
  border:1px solid rgba(11,15,20,.08);
  display:flex;flex-direction:column;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(200,135,63,.4);}
.card__media{position:relative;overflow:hidden;aspect-ratio:3/2;background:var(--paper-2);}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.card:hover .card__media img{transform:scale(1.055);}
.card__tag{
  position:absolute;top:14px;left:14px;background:rgba(11,15,20,.82);
  color:#fff;font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;
  padding:6px 11px;border-radius:2px;backdrop-filter:blur(4px);
}
.card__body{padding:24px;display:flex;flex-direction:column;flex:1;}
.card__body h3{margin-bottom:10px;font-size:1.12rem;}
.card__body p{font-size:.9rem;color:var(--muted);line-height:1.7;margin-bottom:18px;}
.card__link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:.79rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--copper);
}
.card__link .ico{width:12px;height:12px;}

/* Feature tile */
.feature{
  padding:clamp(24px,3vw,34px);border:1px solid rgba(255,255,255,.1);
  border-radius:4px;background:rgba(255,255,255,.028);
  transition:border-color .35s var(--ease),background .35s var(--ease);
}
.feature:hover{border-color:rgba(200,135,63,.45);background:rgba(200,135,63,.06);}
.feature__num{
  font-size:.72rem;letter-spacing:.18em;color:var(--copper-2);
  font-weight:600;margin-bottom:16px;display:block;
}
.feature h3{color:#fff;font-size:1.06rem;margin-bottom:10px;}
.feature p{font-size:.9rem;color:rgba(255,255,255,.58);margin:0;line-height:1.72;}

/* Light feature tile */
.feature--light{background:#fff;border-color:rgba(11,15,20,.09);}
.feature--light:hover{background:#fff;border-color:rgba(200,135,63,.45);}
.feature--light h3{color:var(--ink);}
.feature--light p{color:var(--muted);}
.feature--light .feature__num{color:var(--copper);}

/* ---------------- Split ---------------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,80px);align-items:center;
}
.split__media{position:relative;}
.split__media img{border-radius:4px;width:100%;box-shadow:var(--shadow);}
.split__media--offset img{border:1px solid rgba(255,255,255,.1);}
.check{list-style:none;padding:0;margin:26px 0 0;}
.check li{
  position:relative;padding-left:30px;font-size:.94rem;color:var(--muted);margin-bottom:14px;
}
.check li::before{
  content:"";position:absolute;left:0;top:.52em;width:14px;height:8px;
  border-left:2px solid var(--copper);border-bottom:2px solid var(--copper);
  transform:rotate(-45deg);
}
.section--dark .check li{color:rgba(255,255,255,.62);}

/* ---------------- Gallery (workshop) ---------------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.gallery figure{margin:0;position:relative;overflow:hidden;border-radius:3px;background:var(--ink-2);}
.gallery img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .7s var(--ease),opacity .4s;}
.gallery figure:hover img{transform:scale(1.06);opacity:.82;}
.gallery figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 16px 14px;
  font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:#fff;
  background:linear-gradient(to top,rgba(11,15,20,.86),transparent);
}

/* ---------------- Video ---------------- */
.video-box{
  position:relative;border-radius:4px;overflow:hidden;border:1px solid rgba(255,255,255,.12);
  background:#000;box-shadow:0 40px 90px -46px rgba(0,0,0,.9);
}
.video-box video{display:block;width:100%;height:auto;}

/* ---------------- Accordion / FAQ ---------------- */
.faq{max-width:900px;margin:0 auto;}
.faq__item{
  border-bottom:1px solid rgba(11,15,20,.12);
}
.faq__btn{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:24px;
  padding:26px 4px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:clamp(1rem,1.4vw,1.1rem);font-weight:600;color:var(--ink);line-height:1.5;
  transition:color .25s var(--ease);
}
.faq__btn:hover{color:var(--copper);}
.faq__icon{
  flex-shrink:0;width:26px;height:26px;border:1px solid rgba(11,15,20,.2);border-radius:50%;
  position:relative;margin-top:2px;transition:all .3s var(--ease);
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink);transform:translate(-50%,-50%);
  transition:all .3s var(--ease);
}
.faq__icon::before{width:11px;height:1.5px;}
.faq__icon::after{width:1.5px;height:11px;}
.faq__btn[aria-expanded="true"] .faq__icon{background:var(--copper);border-color:var(--copper);transform:rotate(180deg);}
.faq__btn[aria-expanded="true"] .faq__icon::before,
.faq__btn[aria-expanded="true"] .faq__icon::after{background:#fff;}
.faq__btn[aria-expanded="true"] .faq__icon::after{height:0;}
.faq__panel{
  display:grid;grid-template-rows:0fr;transition:grid-template-rows .38s var(--ease);
}
.faq__panel.is-open{grid-template-rows:1fr;}
.faq__panel > div{overflow:hidden;}
.faq__panel p{padding:0 56px 28px 4px;margin:0;color:var(--muted);font-size:.95rem;line-height:1.8;}

/* ---------------- Forms ---------------- */
.form-card{
  background:#fff;border:1px solid rgba(11,15,20,.09);border-radius:4px;
  padding:clamp(24px,3.4vw,44px);box-shadow:var(--shadow);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{
  display:block;font-size:.79rem;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;color:var(--steel);margin-bottom:8px;
}
.field label .req{color:var(--copper);}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid rgba(11,15,20,.16);border-radius:3px;
  background:#fff;color:var(--text);font-family:inherit;font-size:.94rem;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
  -webkit-appearance:none;appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7480' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;background-size:11px;
  padding-right:38px;
}
.field textarea{min-height:130px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--copper);box-shadow:0 0 0 3px var(--copper-soft);
}
.field input::placeholder,.field textarea::placeholder{color:#a3a8b0;}
.consent{display:flex;gap:11px;align-items:flex-start;font-size:.83rem;color:var(--muted);margin:4px 0 22px;}
.consent input{margin-top:3px;flex-shrink:0;accent-color:var(--copper);width:16px;height:16px;}
.form-note{font-size:.79rem;color:var(--muted);margin:16px 0 0;line-height:1.65;}

.alert{
  display:none;padding:18px 20px;border-radius:3px;margin-bottom:22px;
  font-size:.92rem;line-height:1.6;border-left:3px solid;
}
.alert.is-visible{display:block;}
.alert--success{background:#edf7f0;border-color:#2e7d4f;color:#1d5738;}
.alert--error{background:#fdf0ef;border-color:#b3382f;color:#8c2a23;}
.alert strong{display:block;margin-bottom:4px;}

/* ---------------- CTA band ---------------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:#fff;
  padding:clamp(48px,6.5vw,86px) 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(700px 320px at 14% 20%,rgba(200,135,63,.26),transparent 62%),
    radial-gradient(600px 320px at 88% 90%,rgba(46,96,150,.22),transparent 62%);
}
.cta-band__inner{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band h2{margin-bottom:10px;color:#fff;}
.cta-band p{margin:0;color:rgba(255,255,255,.66);max-width:56ch;}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------------- Footer ---------------- */
.footer{background:#080b0f;color:rgba(255,255,255,.5);padding:clamp(46px,6vw,72px) 0 0;font-size:.88rem;}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:46px;}
.footer h4{
  color:#fff;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;
  margin-bottom:20px;font-weight:600;
}
.footer ul{list-style:none;padding:0;margin:0;}
.footer li{margin-bottom:0;}
.footer a{color:rgba(255,255,255,.55);transition:color .25s var(--ease);}
.footer a:hover{color:var(--copper-2);}
.footer ul a{display:inline-block;padding:5px 0;}
.footer .brand{margin-bottom:18px;}
.footer p{color:rgba(255,255,255,.45);line-height:1.75;font-size:.87rem;}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.79rem;color:rgba(255,255,255,.35);
}
.footer__bottom a{color:rgba(255,255,255,.45);}

/* ---------------- Product detail ---------------- */
.pd{display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(30px,4.5vw,64px);align-items:start;}
.pd__media img{width:100%;border-radius:4px;box-shadow:var(--shadow);border:1px solid rgba(11,15,20,.07);}
.pd__meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.chip{
  font-size:.71rem;letter-spacing:.11em;text-transform:uppercase;font-weight:600;
  padding:7px 13px;border-radius:2px;background:var(--copper-soft);color:#8a5a21;
  border:1px solid rgba(200,135,63,.25);
}
.spec-table{width:100%;border-collapse:collapse;margin:28px 0;font-size:.9rem;}
.spec-table caption{text-align:left;font-size:.75rem;letter-spacing:.14em;text-transform:uppercase;color:var(--copper);padding-bottom:12px;font-weight:600;}
.spec-table th,.spec-table td{padding:13px 14px;border-bottom:1px solid rgba(11,15,20,.1);text-align:left;vertical-align:top;}
.spec-table th{width:42%;font-weight:600;color:var(--ink);background:rgba(11,15,20,.025);}
.spec-table td{color:var(--muted);}
.prose h2{margin-top:2em;}
.prose h2:first-child{margin-top:0;}
.prose h3{margin-top:1.7em;}
.prose p{color:var(--muted);line-height:1.85;}
.prose ul li{color:var(--muted);}
.prose strong{color:var(--text);}
.callout{
  border-left:3px solid var(--copper);background:var(--copper-soft);
  padding:20px 24px;border-radius:0 3px 3px 0;margin:28px 0;
}
.callout p{margin:0;color:var(--steel);font-size:.94rem;}

.crumbbar{background:var(--paper-2);border-bottom:1px solid rgba(11,15,20,.08);}
.crumbbar .breadcrumb{margin:0;padding:16px 0;color:var(--muted);}
.crumbbar .breadcrumb a{color:var(--steel);}
.crumbbar .breadcrumb li+li::before{color:rgba(11,15,20,.25);}

/* ---------------- Reveal animation ---------------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* ---------------- Responsive ---------------- */
@media (max-width:1080px){
  .nav a{padding:10px 11px;font-size:.83rem;}
  .footer__grid{grid-template-columns:1fr 1fr;gap:34px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat{padding:28px 18px;}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);padding-bottom:28px;}
}

@media (max-width:900px){
  .header__inner{height:66px;}
  .burger{display:block;}
  .header__cta .btn{display:none;}
  .nav{
    position:fixed;top:66px;left:0;right:0;
    background:#0b0f14;border-bottom:1px solid rgba(255,255,255,.1);
    flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 24px;
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:all .3s var(--ease);max-height:calc(100vh - 66px);overflow-y:auto;
  }
  .nav.is-open{transform:none;opacity:1;visibility:visible;}
  .nav a{padding:15px 4px;font-size:.95rem;border-bottom:1px solid rgba(255,255,255,.07);}
  .nav a::after{display:none;}
  .nav .btn{margin-top:16px;display:inline-flex;}
  .hero__grid,.split,.pd{grid-template-columns:1fr;}
  .hero__media{order:-1;}
  .hero__badge{left:auto;right:14px;bottom:-18px;padding:15px 20px;}
  .hero__badge strong{font-size:1.5rem;}
  .grid--3,.grid--2,.grid--4{grid-template-columns:repeat(2,1fr);}
  .gallery{grid-template-columns:repeat(2,1fr);}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
}

@media (max-width:620px){
  .wrap{padding:0 18px;}
  .grid--3,.grid--2,.grid--4{grid-template-columns:1fr;}
  .gallery{grid-template-columns:1fr 1fr;gap:10px;}
  .form-row{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat strong{font-size:1.7rem;}
  .stat span{font-size:.68rem;letter-spacing:.06em;}
  .footer__grid{grid-template-columns:1fr;}
  .hero__actions .btn{width:100%;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{flex:1 1 100%;}
  .faq__panel p{padding-right:12px;}
  .brand__sub{display:none;}
  .spec-table th,.spec-table td{display:block;width:100%;}
  .spec-table th{border-bottom:0;padding-bottom:4px;background:transparent;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--copper);}
  .spec-table td{padding-top:0;}
}

/* ---------------- Utilities ---------------- */
.aside-h{font-size:clamp(1.25rem,2vw,1.6rem);margin-bottom:10px;}
.aside-h--light{color:#fff;}
.split-side{grid-template-columns:1.35fr .65fr;align-items:start;}
.mt-6{margin-top:6px;}
.mt-8{margin-top:8px;}
.mt-20{margin-top:20px;}
.mt-34{margin-top:34px;}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px;}
.btn-row .btn,.btn-group .btn{margin:0;}
.text-center{text-align:center;}
.center-cta{margin-top:clamp(32px,4vw,52px);text-align:center;}
.badge-grid{margin-top:clamp(48px,7vw,86px);}
@media (max-width:900px){
  .split-side{grid-template-columns:1fr;}
}

.form-card--compact{padding:26px;}
.form-card--dark{background:var(--ink);border-color:var(--ink);margin-top:20px;}
.form-card--dark p{color:rgba(255,255,255,.6);font-size:.9rem;}
.form-card--dark .check li{color:rgba(255,255,255,.6);}
.card__body a{color:inherit;}

/* ---------------- Page-level helpers ---------------- */
.section--pd-top{padding-top:clamp(36px,4.5vw,64px);}
.h1--pd{font-size:clamp(1.75rem,3.3vw,2.75rem);}
.check--tight{margin-top:12px;}
.card-dark-p{color:rgba(255,255,255,.6);font-size:.9rem;}
.faq__q{margin:0;font-size:inherit;font-weight:inherit;}
.req-mark{color:var(--copper);}
.stats--flush{border-top:0;}
.contact-img{margin-top:34px;border-radius:4px;box-shadow:var(--shadow);}
.section-head--bare{margin-bottom:0;max-width:820px;}
.form-intro{color:var(--muted);font-size:.94rem;margin-bottom:26px;}
.ind-h{font-size:1rem;}
.split--form{align-items:start;}