:root{
  --primary:#18C947;
  --secondary:#6C63FF;
  --accent:#FF6B79;
  --bg:#FFFFFF;
  --soft:#F3FFF6;
  --ink:#14231A;
  --muted:#4F6255;
  --header:#FFFFFF;
  --alt:#F7FAF8;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.85}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}
header{position:sticky;top:0;z-index:20;background:var(--header);box-shadow:0 1px 0 rgba(22,45,30,.09)}
.head{min-height:72px;display:grid;grid-template-columns:auto 1fr auto;gap:26px;align-items:center}
.brand{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:950;color:var(--ink)}
.brand img{width:42px;height:42px;border-radius:12px}
nav{display:flex;justify-content:center;gap:26px}
nav a{font-size:14px;font-weight:800;color:var(--muted)}
nav a.active,nav a:hover{color:var(--primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:51px;padding:0 27px;border-radius:999px;background:var(--primary);color:#fff;font-weight:900}
.btn.secondary{background:var(--secondary)}
.hero{padding:82px 0;background:linear-gradient(135deg,var(--soft),var(--bg))}
.hero-grid{display:grid;gap:62px;align-items:center}
.hero h1{font-size:clamp(52px,5.2vw,76px);line-height:1.04;letter-spacing:-.05em;margin:0;color:var(--ink)}
.hero h1 span{color:var(--primary)}
.hero p{font-size:17px;line-height:1.95;color:var(--muted);margin:24px 0}
.actions{display:flex;gap:13px;flex-wrap:wrap}
.hero-media img{max-height:520px;object-fit:contain;margin:auto}
.section{padding:90px 0}
.altbg{background:var(--alt)}
.section h2{font-size:clamp(40px,4.2vw,57px);line-height:1.12;margin:0 0 14px;color:var(--ink)}
.lead{color:var(--muted);max-width:820px}
.features{display:grid;gap:48px;margin-top:45px}
.feature{display:grid;grid-template-columns:.82fr 1.18fr;gap:52px;align-items:center;margin:58px 0}
.feature-icon img{width:260px;margin:auto}
.feature-copy h3{font-size:34px;margin:6px 0;color:var(--ink)}
.feature-copy p{color:var(--muted);font-size:16px}
.download-band{padding:76px 0;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
.download-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:50px;align-items:center}
.download-band h2{font-size:49px;line-height:1.12;margin:0;color:#fff}
.download-band p{color:rgba(255,255,255,.88)}
.download-options{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.download-option strong{display:block;font-size:20px}
.download-option span{font-size:13px;color:rgba(255,255,255,.78)}
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:40px}
.scene img{width:88px}
.scene h3{font-size:22px;margin:10px 0;color:var(--ink)}
.scene p{color:var(--muted)}
.inner-hero{padding:66px 0;background:linear-gradient(135deg,var(--soft),var(--bg))}
.inner-grid{display:grid;grid-template-columns:1fr .9fr;gap:58px;align-items:center}
.inner-grid h1{font-size:clamp(43px,4.9vw,62px);line-height:1.08;margin:0;color:var(--ink)}
.inner-grid p{color:var(--muted);font-size:17px}
.inner-grid img{max-height:380px;object-fit:contain;margin:auto}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:58px}
.article h2{font-size:29px;margin:40px 0 12px;color:var(--ink)}
.article p,.article li{font-size:16px;line-height:2;color:var(--muted)}
.side{position:sticky;top:95px}
.side a{display:block;padding:9px 0;color:var(--muted)}
.faq-list{display:grid;gap:26px}
.faq h3{font-size:22px;margin:0;color:var(--ink)}
.faq p{color:var(--muted)}
footer{background:#071A12;color:#D9EADF;padding-top:50px}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:42px;padding-bottom:35px}
.foot .brand{color:#fff}
.foot p,.foot a{color:#A8BBAE;font-size:13px}
.foot a{display:block;padding:5px 0}
.copyright{text-align:center;padding:18px;color:#7F9685}
@media(max-width:950px){
  nav{display:none}
  .hero-grid,.inner-grid,.article-layout,.feature,.download-grid{grid-template-columns:1fr!important}
  .features,.scenes,.foot{grid-template-columns:1fr!important}
  .hero h1{font-size:47px}
}
.hero-grid{grid-template-columns:.92fr 1.08fr}.feature:nth-child(even) .feature-icon{order:2}.feature:nth-child(even) .feature-copy{order:1}