:root{
  --bg:#f7f3ee;
  --text:#1b1b1b;
  --muted:#6b6b6b;
  --card:#ffffff;
  --accent:#1e6d59;
  --accent-2:#f59a5c;
  --ring:rgba(30,109,89,.15);
  --shadow:0 20px 60px rgba(0,0,0,.10);
  --brand-icon-size:60px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Segoe UI","PingFang SC","Noto Sans","Roboto","Arial",sans-serif;line-height:1.6}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

.nav{position:sticky;top:0;z-index:20;backdrop-filter:saturate(180%) blur(16px)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0;position:relative;z-index:1}
.brand{font-weight:700;letter-spacing:.3px;display:flex;align-items:center;gap:12px}
.brand img{width:var(--brand-icon-size);height:var(--brand-icon-size);object-fit:contain;border-radius:50%;filter:drop-shadow(0 0 0 1.5px rgba(0,0,0,.16))}
.brand span{font-size:22px;color:var(--text);opacity:.95}
.nav-actions{display:flex;gap:16px;align-items:center}
.nav-link{color:var(--text);text-decoration:none;opacity:.7;transition:opacity .25s ease}
.nav-link:hover{opacity:1}
.nav-blur{position:absolute;inset:0;background:linear-gradient(180deg,rgba(247,243,238,.8),rgba(247,243,238,.4));pointer-events:none;z-index:-1}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:999px;text-decoration:none;font-weight:600;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 30px rgba(30,109,89,.2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(30,109,89,.25)}
.btn-outline{border:1px solid rgba(27,27,27,.12);color:var(--text);background:transparent}
.btn-outline:hover{background:#ffffff15}

.hero{position:relative;display:grid;grid-template-columns:1fr;min-height:92vh}
.hero-media{position:relative}
.hero-media img{width:100%;height:100%;object-fit:cover;display:block}
.hero-content{position:absolute;inset:auto 0 8% 0;color:#fff}
.hero-content h1{color:#fff;font-size:clamp(36px,6vw,72px);margin:0 0 16px}
.hero-content .sub{max-width:660px;color:rgba(255,255,255,.85)}
.hero-cta{margin-top:24px}

.section{padding:80px 0}
.intro h2,.articles h2,.subscribe h2{font-size:clamp(28px,4vw,40px);margin:0 0 16px}
.lead{opacity:.8}

.features{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;margin:36px 0}
.feature{background:var(--card);border-radius:20px;padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:flex-start}
.feature .icon{width:60px;height:60px}
.feature h3{margin:12px 0 8px;font-size:18px}
.feature p{opacity:.75}

.tech{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch;margin-top:40px}
.tech-media{background:var(--card);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
.tech-media img{width:100%;display:block}
.tech-media video{width:100%;height:100%;display:block;object-fit:cover}
.tech-copy{background:var(--card);border-radius:24px;padding:24px;box-shadow:var(--shadow)}
.tech-copy p{margin:0 0 12px;opacity:.85}
.tech-copy h4{margin:12px 0 8px;font-size:18px}
.tech-copy ul{margin:6px 0 12px 18px;opacity:.85}
.tech-copy ul li{margin:6px 0}
.tech-copy .key-features li strong{color:var(--accent)}

.scenarios{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.scenario{background:var(--card);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.scenario img{width:100%;height:clamp(180px,24vw,240px);object-fit:cover;display:block}
.scenario figcaption{padding:12px 16px;opacity:.85;font-weight:600}

.articles .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:20px}
.back-row{margin-bottom:12px}
.articles h1{font-size:clamp(32px,5vw,48px);margin:0 0 8px}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;background:#eaf7f3;color:var(--accent);font-weight:600}
.article-hero{background:var(--card);border-radius:24px;box-shadow:var(--shadow);overflow:hidden;margin-top:16px}
.article-hero img{width:100%;display:block}
.article-content{max-width:860px;margin:24px auto 0;font-size:18px;line-height:1.8}
.article-content h2{margin:24px 0 8px;font-size:clamp(24px,3.5vw,32px)}
.article-content h3{margin:16px 0 8px;font-size:20px;opacity:.95}
.callout{background:#eaf7f3;color:var(--accent);padding:14px 16px;border-radius:16px;box-shadow:var(--shadow);margin:16px 0}
.highlight-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;list-style:none;padding:0;margin:12px 0 8px}
.highlight-list li{background:var(--card);border:1px solid rgba(0,0,0,.06);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow)}
.key-points{margin:8px 0 12px 18px}
.key-points li{margin:6px 0}
.card{display:flex;flex-direction:column;text-decoration:none;color:inherit;background:var(--card);border-radius:24px;overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 24px 70px rgba(0,0,0,.12)}
.card img{width:100%;display:block}
.card-body{padding:18px}
.card-body h3{margin:0 0 8px}
.card-body p{margin:0 0 12px;opacity:.75}
.card .link{color:var(--accent)}

.subscribe .subscribe-box{background:var(--card);border-radius:24px;padding:32px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px;width:100%}
.subscribe-form input{flex:1;min-width:220px;padding:14px 16px;border:1px solid rgba(0,0,0,.08);border-radius:999px;background:#fff;outline:none}
.subscribe-form input:focus{box-shadow:0 0 0 8px var(--ring)}
.note{opacity:.6}

.contact-info{display:inline-flex;align-items:center;gap:10px;padding:10px 12px;border-radius:999px;background:#eaf7f3;color:var(--accent)}
.contact-info svg{width:20px;height:20px}
.email-link{color:var(--accent);text-decoration:none;font-weight:600}
.email-link:hover{text-decoration:underline}

.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%}
.contact-form .form-group{display:flex;flex-direction:column;gap:6px}
.contact-form label{font-weight:600}
.contact-form input,.contact-form textarea{padding:14px 16px;border:1px solid rgba(0,0,0,.08);border-radius:12px;background:#fff;outline:none}
.contact-form input:focus,.contact-form textarea:focus{box-shadow:0 0 0 8px var(--ring)}
.contact-form .form-wide{grid-column:1/-1}
.contact-form .form-actions{grid-column:1/-1}
.form-status{display:none;border-radius:12px;padding:12px 14px}
.form-status.success{display:block;background:#eaf7f3;color:var(--accent)}
.form-status.error{display:block;background:#fff1ee;color:#d84a3f}

.footer{padding:40px 0;border-top:1px solid rgba(0,0,0,.08)}
.foot-inner{display:flex;justify-content:space-between;align-items:center}
.foot-links{display:flex;gap:16px}
.foot-links a{color:var(--muted);text-decoration:none}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}

.toast{position:fixed;bottom:24px;right:24px;background:#111;color:#fff;padding:14px 16px;border-radius:12px;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);transition:opacity .3s ease,transform .3s ease}
.toast.show{opacity:1;transform:translateY(0)}

@media (max-width:1100px){
  .features{grid-template-columns:repeat(3,1fr)}
  .tech{grid-template-columns:1fr}
}
@media (max-width:800px){
  .features{grid-template-columns:repeat(3,1fr)}
  .tech{grid-template-columns:1fr}
  .highlight-list{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .features{grid-template-columns:1fr}
  .articles .article-grid{grid-template-columns:1fr}
  .hero-content{position:absolute;inset:auto 0 4% 0;padding:0 24px}
  :root{--brand-icon-size:44px}
  .contact-form{grid-template-columns:1fr}
  .highlight-list{grid-template-columns:1fr}
}