:root{
  --bg:#f7faf7;
  --paper:#ffffff;
  --ink:#17221b;
  --muted:#667168;
  --line:#e3ebe4;
  --green:#0b7b43;
  --green-2:#125e39;
  --green-soft:#eaf6ee;
  --gold:#c89a35;
  --gold-soft:#fbf5e7;
  --shadow:0 18px 50px rgba(22,50,31,.10);
  --shadow-soft:0 8px 24px rgba(22,50,31,.07);
  --radius:26px;
  --radius-sm:18px;
  --max:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}
.section{padding:88px 0}
.section-sm{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:var(--green);background:var(--green-soft);padding:8px 12px;border-radius:999px
}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--green)}
h1,h2,h3{line-height:1.12;margin:0}
h1{font-size:clamp(44px,6vw,78px);letter-spacing:-.045em}
h2{font-size:clamp(34px,4vw,52px);letter-spacing:-.035em}
h3{font-size:22px;letter-spacing:-.02em}
p{margin:0}
.lead{font-size:clamp(18px,2vw,22px);color:#445047;max-width:720px}
.muted{color:var(--muted)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:50px;padding:0 20px;border-radius:14px;font-weight:750;border:1px solid transparent;
  transition:.2s ease;cursor:pointer
}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 10px 22px rgba(11,123,67,.18)}
.btn-primary:hover{transform:translateY(-2px);background:var(--green-2)}
.btn-secondary{background:#fff;border-color:#dce6de}
.btn-secondary:hover{border-color:#b9cbbc;transform:translateY(-2px)}
.btn-ghost{background:var(--green-soft);color:var(--green)}
.icon{width:18px;height:18px;display:inline-block}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  background:rgba(247,250,247,.88);border-bottom:1px solid rgba(220,232,222,.85)
}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:850;letter-spacing:-.02em}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,var(--green),#1aa05d);
  display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 8px 18px rgba(11,123,67,.20)
}
.brand small{display:block;color:var(--muted);font-weight:650;font-size:11px;letter-spacing:.04em}
.navlinks{display:flex;gap:26px;font-size:14px;font-weight:700;color:#334038}
.navlinks a:hover{color:var(--green)}
.nav-actions{display:flex;gap:10px}
.menu-btn{display:none;border:0;background:#fff;width:44px;height:44px;border-radius:13px;box-shadow:var(--shadow-soft)}

/* Hero */
.hero{padding:68px 0 76px;background:
  radial-gradient(circle at 10% 10%, rgba(23,155,84,.08), transparent 34%),
  radial-gradient(circle at 90% 15%, rgba(200,154,53,.10), transparent 30%)}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:24px}
.hero h1 span{color:var(--green)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{background:#fff;border:1px solid var(--line);padding:9px 12px;border-radius:999px;font-size:13px;font-weight:700;color:#3c4940}
.hero-card{position:relative}
.hero-image{
  border-radius:34px;overflow:hidden;background:#dfe9df;box-shadow:var(--shadow);
  aspect-ratio:1/1
}
.hero-image img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-24px;bottom:26px;background:rgba(255,255,255,.96);border:1px solid var(--line);
  border-radius:18px;padding:14px 16px;box-shadow:var(--shadow-soft);max-width:260px
}
.hero-float strong{display:block;font-size:14px}.hero-float span{display:block;font-size:12px;color:var(--muted);margin-top:4px}

/* Trust strip */
.trust-strip{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.trust-item{padding:24px 20px;border-right:1px solid var(--line)}
.trust-item:last-child{border-right:0}
.trust-item strong{font-size:15px}.trust-item p{font-size:12px;color:var(--muted);margin-top:4px}

/* headings */
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
.section-head .copy{display:flex;flex-direction:column;gap:14px;max-width:760px}
.section-head .side-note{font-size:13px;color:var(--muted);max-width:280px;text-align:right}

/* Product cards */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-soft);transition:.22s ease
}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.product-media{aspect-ratio:4/3;overflow:hidden;background:#e9efe9}
.product-media img{width:100%;height:100%;object-fit:cover;transition:.3s ease}
.product-card:hover .product-media img{transform:scale(1.025)}
.product-body{padding:24px}
.product-top{display:flex;justify-content:space-between;align-items:start;gap:12px}
.product-no{font-size:12px;font-weight:850;color:var(--green);background:var(--green-soft);padding:5px 9px;border-radius:999px}
.product-desc{color:var(--muted);font-size:14px;margin:12px 0 18px}
.spec-list{display:grid;gap:9px;margin:0 0 20px;padding:0;list-style:none}
.spec-list li{display:flex;justify-content:space-between;gap:16px;padding-bottom:9px;border-bottom:1px dashed #e2e9e3;font-size:13px}
.spec-list span:first-child{color:var(--muted)}
.spec-list span:last-child{text-align:right;font-weight:750}

/* Feature image strip */
.feature-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:24px;align-items:stretch}
.feature-big,.feature-small{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft)}
.feature-big img{width:100%;height:100%;object-fit:cover;min-height:560px}
.feature-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.feature-small{position:relative}
.feature-small img{width:100%;height:100%;object-fit:cover;min-height:268px}
.image-caption{
  position:absolute;left:16px;right:16px;bottom:16px;background:rgba(255,255,255,.93);
  border:1px solid rgba(220,230,222,.92);border-radius:15px;padding:11px 13px;
  font-size:12px;font-weight:720;backdrop-filter:blur(9px)
}

/* Applications */
.application-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.application-card{
  position:relative;overflow:hidden;border-radius:30px;min-height:430px;background:#ddd;box-shadow:var(--shadow-soft)
}
.application-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.application-card:after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(10,24,14,.68),rgba(10,24,14,0) 62%)}
.application-copy{position:absolute;left:28px;right:28px;bottom:26px;z-index:2;color:#fff}
.application-copy p{color:rgba(255,255,255,.84);font-size:14px;margin-top:8px;max-width:520px}

/* Why */
.why-wrap{
  background:#fff;border:1px solid var(--line);border-radius:34px;padding:34px;box-shadow:var(--shadow-soft)
}
.why-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:center}
.why-image{border-radius:26px;overflow:hidden;background:#e8eee8}
.why-image img{width:100%;height:100%;object-fit:cover;min-height:520px}
.benefits{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.benefit{padding:17px;border:1px solid var(--line);border-radius:17px;background:#fbfdfb}
.benefit strong{display:block;font-size:14px}.benefit p{font-size:12px;color:var(--muted);margin-top:5px}

/* Manufacturing */
.manufacture-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.real-photo{border-radius:28px;overflow:hidden;background:#e5ece6;box-shadow:var(--shadow-soft)}
.real-photo img{width:100%;height:100%;object-fit:cover;min-height:420px}
.manufacture-copy{
  background:linear-gradient(145deg,#0d6f40,#0a5732);color:#fff;border-radius:28px;padding:38px;
  display:flex;flex-direction:column;justify-content:center;gap:20px
}
.manufacture-copy p{color:rgba(255,255,255,.82)}
.white-list{display:grid;gap:11px;padding:0;margin:0;list-style:none}
.white-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px}
.check{width:22px;height:22px;border-radius:50%;background:rgba(255,255,255,.14);display:grid;place-items:center;flex:0 0 auto}

/* Specs */
.spec-table-wrap{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:auto;box-shadow:var(--shadow-soft)}
table{width:100%;border-collapse:collapse;min-width:840px}
th,td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:13px;vertical-align:top}
th{background:#f3f8f4;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:#566158}
tbody tr:last-child td{border-bottom:0}
td:first-child{font-weight:800;color:var(--green)}

/* Gallery / poster */
.gallery-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:24px;align-items:start}
.poster-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:12px;box-shadow:var(--shadow-soft);position:sticky;top:98px}
.poster-card img{border-radius:20px;width:100%}
.gallery-copy{display:flex;flex-direction:column;gap:18px}
.gallery-copy .panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px}
.gallery-copy img{border-radius:18px;margin-top:16px}
.note{font-size:12px;color:var(--muted);background:var(--gold-soft);border:1px solid #eee0b6;border-radius:14px;padding:12px 14px}

/* FAQ */
.faq{display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 20px}
.faq summary{cursor:pointer;list-style:none;font-weight:800;padding:20px 0;display:flex;justify-content:space-between;gap:20px}
.faq summary::-webkit-details-marker{display:none}
.faq details p{padding:0 0 20px;color:var(--muted);font-size:14px}

/* Contact */
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:34px;overflow:hidden;box-shadow:var(--shadow);
  display:grid;grid-template-columns:.92fr 1.08fr
}
.contact-info{padding:42px;background:linear-gradient(150deg,#f1f8f3,#fff)}
.contact-info h2{font-size:42px}
.contact-lines{display:grid;gap:12px;margin-top:28px}
.contact-line{background:#fff;border:1px solid var(--line);border-radius:15px;padding:13px 14px;font-size:13px}
.contact-line strong{display:block;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:2px}
.quote-form{padding:42px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:7px}
.field.full{grid-column:1/-1}
label{font-size:12px;font-weight:800;color:#536057}
input,select,textarea{width:100%;border:1px solid #dbe5dd;background:#fbfdfb;border-radius:13px;padding:13px 14px;outline:none}
input:focus,select:focus,textarea:focus{border-color:#8eb99a;box-shadow:0 0 0 4px rgba(11,123,67,.08)}
textarea{min-height:112px;resize:vertical}

/* Footer */
footer{background:#122319;color:#fff;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .8fr;gap:40px;padding:52px 0}
.footer-grid p,.footer-grid a{color:rgba(255,255,255,.72);font-size:13px}
.footer-grid a:hover{color:#fff}
.footer-col{display:grid;gap:10px;align-content:start}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;color:rgba(255,255,255,.55);font-size:12px}

/* floating */
.float-wa{
  position:fixed;right:22px;bottom:22px;z-index:45;background:#19a05a;color:#fff;border-radius:999px;
  padding:13px 17px;font-weight:800;font-size:13px;box-shadow:0 14px 34px rgba(22,120,68,.28)
}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
.reveal.show{opacity:1;transform:none}

@media (max-width: 980px){
  .navlinks,.nav-actions{display:none}.menu-btn{display:block}
  .hero-grid,.feature-grid,.why-grid,.manufacture-grid,.gallery-grid,.contact-card{grid-template-columns:1fr}
  .hero-grid{gap:34px}
  .hero-float{left:16px}
  .products{grid-template-columns:1fr}
  .application-grid{grid-template-columns:1fr}
  .benefits{grid-template-columns:1fr 1fr}
  .poster-card{position:relative;top:auto;max-width:620px;margin:0 auto}
  .trust-grid{grid-template-columns:1fr 1fr}
  .trust-item:nth-child(2){border-right:0}
  .trust-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .section-head{align-items:start;flex-direction:column}
  .section-head .side-note{text-align:left}
}
@media (max-width: 620px){
  .container{width:min(var(--max),calc(100% - 24px))}
  .section{padding:64px 0}
  .hero{padding-top:42px}
  h1{font-size:44px}
  .hero-image{border-radius:24px}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-right:0!important;border-bottom:1px solid var(--line)!important}
  .trust-item:last-child{border-bottom:0!important}
  .benefits{grid-template-columns:1fr}
  .why-wrap{padding:18px}
  .contact-info,.quote-form{padding:26px}
  .form-grid{grid-template-columns:1fr}
  .field.full{grid-column:auto}
  .footer-grid{grid-template-columns:1fr}
  .float-wa{right:12px;bottom:12px}
}


/* Real factory gallery */
.factory-gallery{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  grid-template-rows:1fr 1fr;
  gap:20px;
  margin-bottom:24px;
}
.factory-shot{
  position:relative;
  margin:0;
  overflow:hidden;
  border-radius:26px;
  background:#e9efe9;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  min-height:260px;
}
.factory-shot-wide{grid-row:1 / span 2;min-height:540px}
.factory-shot img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.factory-shot:after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(to top,rgba(8,21,12,.60),rgba(8,21,12,0) 52%);
}
.factory-shot figcaption{
  position:absolute;z-index:2;left:22px;right:22px;bottom:20px;color:#fff;
  display:grid;gap:2px
}
.factory-shot figcaption strong{font-size:18px}
.factory-shot figcaption span{font-size:12px;color:rgba(255,255,255,.82)}
.factory-support-grid{margin-top:24px}

/* Company support */
.company-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:24px;
  align-items:stretch;
}
.company-photo{
  border-radius:28px;
  overflow:hidden;
  border:1px solid var(--line);
  background:#edf2ed;
  box-shadow:var(--shadow-soft);
}
.company-photo img{width:100%;height:100%;object-fit:cover;min-height:480px}
.company-copy{
  background:#fff;
  border:1px solid var(--line);
  border-radius:28px;
  padding:34px;
  display:flex;
  flex-direction:column;
  gap:24px;
  justify-content:center;
  box-shadow:var(--shadow-soft);
}
.company-points{display:grid;gap:12px}
.company-points>div{
  display:grid;gap:4px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
}
.company-points>div:last-child{border-bottom:0}
.company-points strong{font-size:14px}
.company-points span{font-size:12px;color:var(--muted)}
.detail-visual{
  margin-top:24px;
  display:grid;
  grid-template-columns:.7fr 1.3fr;
  gap:24px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:28px;
  padding:24px;
  box-shadow:var(--shadow-soft);
}
.detail-visual img{
  width:100%;
  max-height:680px;
  object-fit:cover;
  object-position:top;
  border-radius:20px;
}

@media (max-width:980px){
  .factory-gallery,.company-grid,.detail-visual{grid-template-columns:1fr}
  .factory-gallery{grid-template-rows:auto}
  .factory-shot-wide{grid-row:auto;min-height:380px}
  .factory-shot{min-height:330px}
}


/* Production video */
.production-video-block{
  margin:0 0 26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:30px;
  padding:24px;
  box-shadow:var(--shadow-soft);
}
.production-video-head{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:22px;
  margin-bottom:20px;
}
.production-video-head h3{
  margin-top:12px;
  font-size:30px;
}
.production-video-head p{
  margin-top:8px;
  max-width:700px;
  font-size:14px;
}
.video-note{
  flex:0 0 auto;
  border:1px solid #dfe8e1;
  background:#f7faf7;
  color:#55705e;
  padding:8px 11px;
  border-radius:999px;
  font-size:11px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.07em;
}
.video-grid{
  display:grid;
  grid-template-columns:1.35fr .65fr;
  gap:18px;
  align-items:stretch;
}
.video-main-card,
.video-side-card{
  background:#f4f7f4;
  border:1px solid var(--line);
  border-radius:22px;
  overflow:hidden;
}
.video-main-card video{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  display:block;
  background:#0e1a12;
}
.video-side-stack{
  display:grid;
  grid-template-rows:1fr 1fr;
  gap:18px;
}
.video-side-card{
  display:grid;
  grid-template-columns:145px 1fr;
  min-height:210px;
}
.video-side-card video{
  width:100%;
  height:100%;
  min-height:210px;
  object-fit:cover;
  display:block;
  background:#0e1a12;
}
.video-caption{
  padding:16px 18px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:4px;
}
.video-caption strong{font-size:14px}
.video-caption span{font-size:12px;color:var(--muted)}

@media (max-width:980px){
  .video-grid{grid-template-columns:1fr}
  .video-side-stack{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .video-side-card{grid-template-columns:1fr}
  .video-side-card video{aspect-ratio:4/3;height:auto;min-height:0}
}
@media (max-width:620px){
  .production-video-head{align-items:start;flex-direction:column}
  .video-side-stack{grid-template-columns:1fr}
  .production-video-block{padding:14px}
}

/* YS logo refinement */
.brand-mark{
  letter-spacing:-0.04em;
  font-size:15px;
  font-weight:900;
}