:root{
  --bg:#0a0a0a;
  --panel:#141414;
  --line:#2f2f2f;
  --text:#f3f3f3;
  --muted:#b4b4b4;
  --brand:#ff8a00;
  --accent:#ffb347;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at 92% -8%,#2a2216 0,#0a0a0a 44%);color:var(--text);overflow-x:hidden}

.wrap{width:min(1240px,calc(100% - 40px));margin:0 auto}
.narrow{max-width:840px}

.topbar{position:sticky;top:0;z-index:20;background:rgba(10,10,10,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit}
.logo-mark{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(140deg,#ffb347,#ff7a00);font-weight:800;color:#1a1004}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:15px;letter-spacing:.04em}
.logo-text em{font-style:normal;font-size:10px;color:#8e8e8e;letter-spacing:.12em}
nav{display:flex;gap:20px}
nav a{text-decoration:none;color:#d0d0d0;font-weight:600;font-size:14px}
.lang-switch{display:flex;gap:6px}
.lang-btn{border:1px solid #4a3b2f;background:#141414;color:#d9d9d9;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;cursor:pointer}
.lang-btn.is-active{background:#ffb347;color:#1d1206;border-color:#ffb347}

.hero{position:relative;padding:96px 0 86px;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:130px;background:linear-gradient(to bottom,transparent,var(--bg))}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:end}
.tag{margin:0;color:#d5d5d5;font-size:12px;letter-spacing:.15em;text-transform:uppercase}
h1{margin:10px 0 14px;font-size:clamp(34px,5.2vw,64px);line-height:1.07;max-width:860px}
.hero-copy p{margin:0;max-width:760px;color:#d8d8d8;font-size:clamp(16px,2vw,22px);line-height:1.65}
.hero-cta{margin-top:24px;display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-block;padding:11px 18px;border-radius:999px;text-decoration:none;font-weight:700;font-size:14px}
.btn-main{background:var(--accent);color:#1f1a12}
.btn-sub{background:transparent;border:1px solid rgba(255,255,255,.45);color:#fff}

.hero-kpis{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.hero-kpis article{background:rgba(20,20,20,.78);border:1px solid rgba(255,138,0,.35);border-radius:14px;padding:14px}
.hero-kpis span{display:block;font-size:30px;font-weight:800;color:var(--brand)}
.hero-kpis small{color:#cdcdcd}

.section{padding:66px 0}
.eyebrow{margin:0;color:#9f9f9f;font-size:11px;letter-spacing:.16em;text-transform:uppercase}
h2{margin:8px 0 14px;font-size:clamp(30px,4.4vw,48px);line-height:1.08}
.about p,.sub{color:#bbbbbb;font-size:18px;line-height:1.8}

.section-head{margin-bottom:12px}

.product-frame{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center}
.arrow{width:52px;height:52px;border-radius:999px;border:1px solid #4a3824;background:#161616;color:#ffd8a6;font-size:24px;cursor:pointer}
.arrow:hover{background:#23190f}
.window{overflow:hidden;border-radius:18px}
.track{display:flex;transition:transform .36s ease}
.product-card{flex:0 0 100%;background:#121212;border:1px solid #313131;border-radius:18px;overflow:hidden}
.product-img{width:100%;height:620px;object-fit:cover;display:block}
.product-info{padding:18px 20px 22px}
.product-info h3{margin:0 0 8px;font-size:30px;color:#fff2df}
.product-info p{margin:0;color:#bbbbbb;font-size:16px;line-height:1.7}

.stack{display:grid;gap:16px}
.service-card{display:grid;grid-template-columns:.95fr 1.05fr;background:#131313;border:1px solid #313131;border-radius:18px;overflow:hidden}
.service-card.reverse{grid-template-columns:1.05fr .95fr}
.service-card.reverse img{order:2}
.service-card img{width:100%;height:100%;min-height:320px;object-fit:cover}
.service-card>div{padding:20px}
.service-card h3{margin:8px 0 10px;font-size:34px;color:#ffe7c2}
.service-card ul{margin:0;padding-left:20px;color:#bdbdbd;line-height:1.9}

.contact-box{display:grid;grid-template-columns:1.15fr .85fr;gap:16px;background:linear-gradient(140deg,#121212,#21170d);border:1px solid #3a3128;border-radius:18px;padding:20px}
.contact-list{display:grid;gap:10px;margin-top:8px}
.contact-list article{background:rgba(255,255,255,.03);border:1px solid #4a3b2f;border-radius:12px;padding:12px}
.contact-list span{display:block;color:#c4b6a6;font-size:13px}
.contact-list strong{display:block;margin-top:4px;font-size:16px;color:#fff1df}
.contact-pics{display:grid;gap:10px}
.contact-pics img{width:100%;height:150px;object-fit:cover;border-radius:12px;border:1px solid #4a3b2f}

footer{border-top:1px solid #2f2f2f;background:#090909}
.foot{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.foot p{margin:0;color:#9d9d9d;font-size:14px}

.mobile-cta{display:none}

.reveal{opacity:0;transform:translateY(20px);transition:.6s ease}
.reveal.is-visible{opacity:1;transform:none}

@media (max-width:1080px){
  .hero-inner,.contact-box,.service-card,.service-card.reverse{grid-template-columns:1fr}
  .service-card.reverse img{order:0}
  .product-img{height:500px}
}
@media (max-width:760px){
  nav{display:none}
  .nav{min-height:66px}
  .logo-mark{width:36px;height:36px}
  .logo-text b{font-size:14px}
  .logo-text em{font-size:9px}
  .lang-btn{padding:7px 9px;font-size:11px}
  .wrap{width:min(1240px,calc(100% - 26px))}
  .hero{padding:78px 0 62px}
  .tag{font-size:10px;letter-spacing:.12em}
  h1{font-size:clamp(30px,9vw,44px);line-height:1.12}
  .hero-copy p{font-size:15px;line-height:1.7}
  .hero-cta{margin-top:16px}
  .btn{padding:12px 14px}
  .section{padding:46px 0}
  h2{font-size:clamp(28px,8vw,38px)}
  .about p,.sub{font-size:16px;line-height:1.75}
  .product-frame{grid-template-columns:42px 1fr 42px;gap:8px}
  .arrow{width:42px;height:42px;font-size:20px}
  .product-img{height:300px}
  .product-info{padding:14px 14px 16px}
  .product-info h3{font-size:24px}
  .product-info p{font-size:14px;line-height:1.65}
  .service-card img{min-height:260px}
  .service-card>div{padding:16px}
  .service-card h3{font-size:28px}
  .service-card ul{font-size:14px;line-height:1.75}
  .contact-box{padding:16px}
  .contact-list strong{font-size:15px}
  .contact-pics img{height:128px}
  .foot{min-height:56px}
  .foot p{font-size:12px}
}

@media (max-width:560px){
  .nav{min-height:60px}
  .logo{gap:8px}
  .logo-mark{width:32px;height:32px;border-radius:9px;font-size:12px}
  .logo-text b{font-size:12px}
  .logo-text em{display:none}
  .lang-switch{gap:4px}
  .lang-btn{padding:6px 8px;font-size:10px}
  .hero{padding:68px 0 52px}
  h1{font-size:clamp(26px,9.5vw,34px)}
  .hero-cta{display:grid;grid-template-columns:1fr;gap:8px}
  .btn{width:100%;text-align:center}
  .hero-kpis{grid-template-columns:1fr 1fr;gap:8px}
  .hero-kpis article{padding:10px}
  .hero-kpis span{font-size:22px}
  .hero-kpis small{font-size:12px}
  .section{padding:40px 0}
  .product-frame{grid-template-columns:36px 1fr 36px;gap:6px}
  .arrow{width:36px;height:36px;font-size:16px}
  .window{border-radius:12px}
  .product-card{border-radius:12px}
  .product-img{height:240px}
  .service-card{border-radius:12px}
  .service-card img{min-height:210px}
  .service-card h3{font-size:24px}
  .contact-box{border-radius:12px}
  .contact-pics{grid-template-columns:1fr}
  .contact-pics img{height:112px}
  .foot{justify-content:flex-start}
  body{padding-bottom:74px}
  .mobile-cta{
    position:fixed;
    left:12px;
    right:12px;
    bottom:12px;
    z-index:40;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:8px;
  }
  .mobile-cta .cta{
    height:46px;
    border-radius:12px;
    display:flex;
    align-items:center;
    justify-content:center;
    text-decoration:none;
    font-weight:800;
    font-size:15px;
  }
  .mobile-cta .wa{
    background:#22c15e;
    color:#08160e;
    box-shadow:0 8px 18px rgba(34,193,94,.35);
  }
  .mobile-cta .call{
    background:#ffb347;
    color:#231606;
    box-shadow:0 8px 18px rgba(255,179,71,.35);
  }
}