:root{
  --green:#1a7a4a; --green-d:#0f5c36; --green-l:#e8f5ee;
  --navy:#10222e; --navy-2:#1a3446;
  --amber:#f5a623; --amber-d:#d98a06;
  --ink:#1c2b33; --muted:#5b6b75; --line:#e3eaee; --bg:#f7faf9; --white:#fff;
  --radius:14px; --shadow:0 6px 24px rgba(16,34,46,.08);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img,svg{max-width:100%;display:block}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-d)}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.25;color:var(--navy)}
h2{font-size:clamp(24px,3.4vw,34px);margin-bottom:10px}
.section{padding:64px 0}
.section.alt{background:var(--white)}
.kicker{display:inline-block;background:var(--green-l);color:var(--green-d);font-weight:700;font-size:13px;
  padding:6px 14px;border-radius:999px;margin-bottom:14px;letter-spacing:.4px}
.sub{color:var(--muted);max-width:720px;margin-bottom:34px}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;border-radius:10px;padding:13px 24px;
  border:0;cursor:pointer;font-size:15px;transition:.15s;text-align:center}
.btn-amber{background:var(--amber);color:#231a05}
.btn-amber:hover{background:var(--amber-d);color:#fff}
.btn-green{background:var(--green);color:#fff}
.btn-green:hover{background:var(--green-d)}
.btn-ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.55)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-outline{background:#fff;color:var(--green-d);border:2px solid var(--green)}
.btn-outline:hover{background:var(--green);color:#fff}

/* Header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px;color:var(--navy)}
.logo-badge{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--green),var(--green-d));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px}
.logo-txt b{display:block;font-size:16px;line-height:1.1}
.logo-txt span{font-size:11px;color:var(--muted)}
nav.main{margin-inline-start:auto;display:flex;gap:4px}
nav.main a{color:var(--ink);font-weight:600;font-size:14.5px;padding:8px 12px;border-radius:8px}
nav.main a:hover{background:var(--green-l);color:var(--green-d)}
.header-cta{display:flex;align-items:center;gap:10px}
.btn-quote{background:var(--amber);color:#231a05;padding:10px 18px;font-size:14px}
.btn-quote:hover{background:var(--amber-d);color:#fff}
/* language dropdown */
.lang{position:relative}
.lang-btn{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);
  border-radius:8px;padding:9px 12px;font-weight:700;font-size:13.5px;cursor:pointer;color:var(--ink)}
.lang-menu{position:absolute;inset-inline-end:0;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);min-width:150px;display:none;overflow:hidden}
.lang.open .lang-menu{display:block}
.lang-menu a{display:block;padding:10px 14px;color:var(--ink);font-size:14px}
.lang-menu a:hover{background:var(--green-l)}
.lang-menu a.active{background:var(--green-l);font-weight:700;color:var(--green-d)}
.burger{display:none;background:none;border:0;font-size:24px;cursor:pointer;color:var(--navy)}

/* Hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,var(--green-d) 100%);color:#fff;
  padding:78px 0 70px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero .kicker{background:rgba(245,166,35,.16);color:var(--amber)}
.hero h1{color:#fff;font-size:clamp(28px,4.2vw,44px);margin-bottom:16px}
.hero p.lead{color:#cfe0d8;font-size:clamp(15px,1.8vw,18px);margin-bottom:26px}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.hero-note{font-size:13.5px;color:#9fb8ad}
.hero-art svg{width:100%;height:auto}
/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-38px;position:relative;z-index:2}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-size:26px;color:var(--green-d)}
.stat span{font-size:13px;color:var(--muted)}

/* product cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow);transition:.15s}
.card:hover{transform:translateY(-4px)}
.card-visual{height:150px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--green-l),#fff)}
.card-visual svg{width:84px;height:84px}
.card-body{padding:22px;display:flex;flex-direction:column;flex:1}
.tag{align-self:flex-start;background:var(--navy);color:#fff;font-size:11.5px;font-weight:700;
  padding:4px 10px;border-radius:999px;margin-bottom:12px;letter-spacing:.4px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted);margin-bottom:14px}
.card ul{list-style:none;margin-bottom:18px}
.card li{font-size:13.5px;padding:5px 0 5px 22px;position:relative;color:var(--ink)}
[dir=rtl] .card li{padding:5px 22px 5px 0}
.card li::before{content:"✓";position:absolute;inset-inline-start:0;color:var(--green);font-weight:800}
.card-actions{margin-top:auto;display:flex;gap:10px}
.card-actions .btn{flex:1;padding:11px 10px;font-size:13.5px;justify-content:center}

/* price band */
.price-band{background:linear-gradient(135deg,var(--green-d),var(--green));color:#fff;border-radius:18px;
  padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
.price-big{font-size:clamp(44px,6vw,64px);font-weight:800;color:var(--amber);line-height:1}
.price-unit{font-size:15px;color:#d7efe2;margin-top:8px}
.price-rmb{margin-top:14px;font-size:13.5px;background:rgba(255,255,255,.12);display:inline-block;
  padding:8px 14px;border-radius:8px}
.price-list{list-style:none}
.price-list li{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.18)}
.price-list li:last-child{border-bottom:0}
.price-list b{display:block;font-size:15px;color:var(--amber)}
.price-list span{font-size:14px;color:#e3f2ea}
.price-band .btn{margin-top:18px}

/* certs */
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center}
.cert .badge-ic{width:52px;height:52px;border-radius:50%;background:var(--green-l);color:var(--green-d);
  display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:22px;font-weight:800}
.cert h3{font-size:17px;margin-bottom:6px}
.cert p{font-size:13px;color:var(--muted);margin-bottom:14px}
.cert a{font-size:13px;font-weight:700}

/* logistics */
.logi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.logi-item{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.logi-ic{flex:0 0 46px;width:46px;height:46px;border-radius:12px;background:var(--green-l);
  display:flex;align-items:center;justify-content:center;font-size:21px}
.logi-item h3{font-size:16.5px;margin-bottom:5px}
.logi-item p{font-size:13.5px;color:var(--muted)}

/* regions */
.regions{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.region{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;
  border-inline-start:4px solid var(--green)}
.region b{display:block;color:var(--navy);margin-bottom:3px}
.region span{font-size:13px;color:var(--muted)}

/* form */
.inq-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.inq-info h2{color:#fff}
.inq-info .sub{color:#c4d8cf}
.inq-perks{list-style:none;margin-top:8px}
.inq-perks li{color:#e6f3ec;padding:8px 0 8px 28px;position:relative;font-size:14.5px}
[dir=rtl] .inq-perks li{padding:8px 28px 8px 0}
.inq-perks li::before{content:"✓";position:absolute;inset-inline-start:0;color:var(--amber);font-weight:800}
.form-card{background:#fff;border-radius:16px;padding:30px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .full{grid-column:1/-1}
label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:5px}
input,select,textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 12px;
  font-size:14px;font-family:var(--font);background:#fbfcfc;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--green);border-color:var(--green)}
textarea{min-height:92px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted);margin-top:12px}
.section-dark{background:linear-gradient(135deg,var(--navy),var(--navy-2))}

/* faq */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:700;color:var(--navy);list-style:none;font-size:15.5px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";float:inline-end;color:var(--green);font-size:20px;font-weight:800}
.faq-item[open] summary::after{content:"−"}
.faq-item .a{padding:0 22px 18px;color:var(--muted);font-size:14.5px}

/* footer */
footer{background:var(--navy);color:#b9cbd4;padding:56px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:40px}
footer h4{color:#fff;font-size:15px;margin-bottom:14px}
footer a{color:#b9cbd4;font-size:13.5px}
footer a:hover{color:var(--amber)}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:9px}
.foot-tag{display:inline-block;background:rgba(255,255,255,.08);border-radius:6px;padding:4px 10px;
  margin:0 6px 8px 0;font-size:12px;color:#cfdde5}
[dir=rtl] .foot-tag{margin:0 0 8px 6px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:12.5px;text-align:center;color:#8fa5b1}
.foot-brand b{color:#fff;font-size:17px}
.foot-brand p{font-size:13px;margin-top:10px;max-width:340px}

/* floating widgets */
.float-wa{position:fixed;bottom:22px;inset-inline-end:22px;z-index:60;display:flex;flex-direction:column;gap:10px}
.float-btn{display:flex;align-items:center;gap:8px;background:#25d366;color:#fff;font-weight:700;font-size:13.5px;
  border-radius:999px;padding:12px 18px;box-shadow:0 8px 24px rgba(0,0,0,.22)}
.float-btn.mail{background:var(--amber);color:#231a05}
.float-btn:hover{transform:scale(1.04);color:#fff}
.float-btn.mail:hover{color:#231a05}

/* modal */
.modal{position:fixed;inset:0;z-index:80;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal-bg{position:absolute;inset:0;background:rgba(16,34,46,.6)}
.modal-card{position:relative;background:#fff;border-radius:16px;max-width:560px;width:100%;
  max-height:90vh;overflow:auto;padding:28px;box-shadow:0 24px 64px rgba(0,0,0,.3)}
.modal-x{position:absolute;top:14px;inset-inline-end:16px;background:none;border:0;font-size:22px;cursor:pointer;color:var(--muted)}
.modal-card h3{margin-bottom:4px}
.modal-card .msub{font-size:13.5px;color:var(--muted);margin-bottom:18px}

/* PDP */
.pdp-hero{background:linear-gradient(135deg,var(--navy),var(--green-d));color:#fff;padding:52px 0}
.pdp-hero h1{color:#fff;font-size:clamp(24px,3.6vw,36px);margin:10px 0 12px}
.pdp-hero p{color:#d3e5dc;max-width:820px;font-size:15.5px}
.crumb{font-size:13px;color:#9fc0b2}
.crumb a{color:#cfe6db}
.pdp-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:start}
.pdp-visual{background:linear-gradient(135deg,var(--green-l),#fff);border:1px solid var(--line);
  border-radius:16px;min-height:320px;display:flex;align-items:center;justify-content:center}
.pdp-visual svg{width:180px;height:180px}
.price-box{background:#fff;border:1px solid var(--line);border-inline-start:5px solid var(--amber);
  border-radius:12px;padding:22px;margin-top:22px}
.price-box .pb-price{font-size:34px;font-weight:800;color:var(--green-d)}
.price-box .pb-unit{font-size:13.5px;color:var(--muted);margin-bottom:10px}
table.spec{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;
  box-shadow:var(--shadow);font-size:14.5px}
table.spec th,table.spec td{padding:12px 16px;text-align:start;border-bottom:1px solid var(--line)}
table.spec th{background:var(--green-l);color:var(--navy);width:44%;font-weight:700}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:0}
.app-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.app{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px}
.app h3{font-size:16px;margin-bottom:6px}
.app p{font-size:13.5px;color:var(--muted)}

@media (max-width:960px){
  .hero-grid,.price-band,.pdp-grid,.inq-wrap{grid-template-columns:1fr}
  .cards,.regions,.app-cards{grid-template-columns:1fr 1fr}
  .certs{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-art{display:none}
}
@media (max-width:640px){
  nav.main{display:none;position:absolute;top:68px;inset-inline:0;background:#fff;flex-direction:column;
    border-bottom:1px solid var(--line);padding:10px}
  nav.main.open{display:flex}
  .burger{display:block}
  .header-cta .btn-quote{display:none}
  .cards,.regions,.app-cards,.certs,.logi-grid,.form-grid,.foot-grid,.stats{grid-template-columns:1fr}
  .section{padding:46px 0}
  .price-band{padding:28px}
}