:root{--bg:#ffffff;--card:#ffffff;--text:#111827;--muted:#374151;--primary:#2563eb;--primary-2:#60a5fa;--border:#e5eaf2;--ok:#2ecc71;--header-bg:rgba(255,255,255,.85)}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial}
a{color:inherit;text-decoration:none}

.container{max-width:1120px;margin:0 auto;padding:0 20px}
.btn{display:inline-block;background:linear-gradient(90deg,var(--primary),var(--primary-2));color:#fff;padding:12px 18px;border-radius:10px;font-weight:600}
.btn{transition:transform .2s ease,opacity .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn:hover{opacity:.9}
.btn-sm{padding:8px 12px;border-radius:8px}
.btn-secondary{background:#fff;color:#0b1f3a;border:1px solid var(--border)}

.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid var(--border);backdrop-filter:saturate(1.1) blur(6px);background:var(--header-bg)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{font-weight:800;letter-spacing:.5px;display:flex;align-items:center;gap:12px}
.logo-img{height:50px;width:auto}
.brand-text{display:flex;flex-direction:column;justify-content:center;color:var(--text);white-space:nowrap;align-items:flex-start}
.brand-name{font-size:22px;font-weight:800;color:var(--text);margin:0;letter-spacing:2px;line-height:1.2}
.brand-english{font-size:10px;color:var(--muted);margin:2px 0 0;letter-spacing:0.5px;line-height:1.2}
.site-header .logo-img{height:50px}
.nav{display:flex;gap:18px;align-items:center}
.nav a{color:var(--text)}
.nav a:hover{color:var(--primary)}
.hamburger{display:none;background:transparent;border:0;color:var(--text);font-size:22px}
.theme-toggle{background:transparent;border:0;color:var(--text);font-size:18px;margin-left:12px}
.theme-toggle:hover{opacity:.8}

.hero{padding:72px 0;border-bottom:1px solid var(--border)}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.hero-copy h1{font-size:36px;margin:0 0 12px}
.hero-copy p{color:var(--muted);margin:0 0 16px}
.search{display:flex;gap:10px;margin:16px 0}
.search input{flex:1;background:var(--card);border:1px solid var(--border);color:var(--text);height:44px;border-radius:10px;padding:0 12px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{background:var(--card);color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:6px 12px}
.tag:hover{color:#fff;border-color:#2a4c8a}
.cta{display:flex;gap:12px;margin-top:18px}
.features{margin:16px 0}
.feature-list{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0;padding:0;list-style:none}
.feature-list li{background:var(--card);border:1px solid var(--border);color:var(--primary);border-radius:999px;padding:8px 12px;font-weight:600}
.hero-art{display:flex;justify-content:center}
.blob{width:320px;height:320px;background:radial-gradient(closest-side,rgba(45,108,223,.25),transparent 70%),conic-gradient(from 200deg at 50% 50%,#2d6cdf 0%,#4db5ff 30%,#6aa5ff 60%,#7b9dff 85%,#2d6cdf 100%);filter:blur(24px);border-radius:50%;animation:blobPulse 10s ease-in-out infinite alternate}
@keyframes blobPulse{0%{transform:scale(1);filter:blur(24px)}50%{transform:scale(1.05);filter:blur(28px)}100%{transform:scale(1.08);filter:blur(32px)}}

.stats{padding:16px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.stat{background:var(--card);border:1px solid var(--border);padding:16px;border-radius:14px;text-align:center}
.stat .num{font-size:22px;font-weight:800;color:var(--text)}
.stat .label{color:var(--muted)}

.section{padding:56px 0;border-top:1px solid var(--border)}
.section.alt{background:linear-gradient(180deg,#f5f8ff 0%,#eef3ff 100%)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.12)}
.card h3{margin:0 0 8px;font-size:18px}
.card p{margin:0 0 12px;color:var(--muted)}
.card .link{color:#8fc7ff}
.card:hover{border-color:#2a4c8a}

.timeline{display:flex;flex-direction:column;gap:32px;margin-top:40px;position:relative;padding-left:40px}
.timeline::before{content:'';position:absolute;left:28px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--primary),var(--primary-2))}
.tl-item{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px;position:relative;transition:transform .2s ease,box-shadow .2s ease;margin-left:20px}
.tl-item{transition:transform .2s ease,box-shadow .2s ease}
.tl-item:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.12)}
.tl-item h3{margin:0 0 12px;font-size:20px;color:var(--text)}
.tl-item p{margin:0 0 16px;color:var(--muted);line-height:1.6}
.marker{width:56px;height:56px;border-radius:50%;background:linear-gradient(180deg,var(--primary) 0%,var(--primary-2) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;position:absolute;left:-76px;top:24px;z-index:1;box-shadow:0 4px 12px rgba(0,0,0,.15)}
.year{position:absolute;bottom:24px;right:24px;color:var(--primary-2);font-weight:800;font-size:20px;opacity:0.8}

.values{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:10px}
.value-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}
.value-card{transition:transform .2s ease,box-shadow .2s ease}
.value-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.12)}
.value-card h3{margin:0 0 8px;font-size:18px}
.value-card p{margin:0 0 10px;color:var(--muted)}
.value-card ol,.value-card ul{margin:0;padding-left:20px;color:var(--text)}
.value-card li{margin:6px 0}

.advantages{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:10px}
.adv-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}
.adv-card{transition:transform .2s ease,box-shadow .2s ease}
.adv-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.12)}
.adv-card h3{margin:0 0 8px;font-size:18px}
.adv-card ul{margin:0;padding-left:18px;color:var(--text)}
.adv-card li{margin:6px 0;color:var(--muted)}

.cases{display:grid;grid-template-columns:1fr;gap:16px;margin-top:10px}
.case-filters{display:flex;gap:10px;margin:8px 0 14px}
.filter-btn{background:var(--card);border:1px solid var(--border);color:var(--muted);padding:8px 12px;border-radius:999px;font-weight:600}
.filter-btn.active{color:#fff;background:linear-gradient(90deg,var(--primary),var(--primary-2));border-color:transparent}
.case{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}
.case h3{margin:0 0 8px;font-size:20px}
.case .lead{color:var(--muted);margin:0 0 10px}
.case-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:center}
.case-info ul{padding-left:18px}
.case-media{display:flex;justify-content:center}
.case-img{width:100%;max-width:420px;height:auto;border-radius:12px;border:1px solid var(--border);margin:0 0 12px;transition:transform .2s ease,box-shadow .2s ease}
.case-img:hover{transform:scale(1.02);box-shadow:0 10px 24px rgba(0,0,0,.12)}
.metrics{display:flex;gap:14px;margin:8px 0 12px}
.metric{display:flex;flex-direction:column;align-items:flex-start;background:var(--card);border:1px solid var(--border);border-radius:10px;padding:8px 12px}
.metric strong{font-size:18px;color:var(--primary)}
.metric span{color:var(--muted);font-size:12px}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.reveal.on{opacity:1;transform:none}
.stat{transition:transform .2s ease}
.stat:hover{transform:translateY(-2px)}
.filter-btn{transition:transform .2s ease,opacity .2s ease}
.filter-btn:hover{transform:translateY(-1px)}
.logo-img{transition:transform .2s ease}
.logo-img:hover{transform:scale(1.05)}
.case ul{margin:0;padding-left:18px}
.case li{margin:6px 0;color:var(--text)}
.case .note{margin-top:10px;color:var(--primary)}

.lead{color:var(--muted)}
.platform-demo{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
.panel{background:linear-gradient(180deg,#0e2a54 0%,#0a2244 100%);border:1px solid var(--border);border-radius:14px;height:140px;display:flex;align-items:center;justify-content:center;color:#b7c3ff}

.news-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.news-list .date{color:var(--muted);margin-right:8px}

.contact{padding-bottom:12px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px}
.contact-card h3{margin:0 0 10px;font-size:18px}
.contact-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.contact-list li{background:var(--card);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:10px}
.contact-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start}
.form-field{display:grid;gap:6px}
.contact-form input,.contact-form textarea{background:var(--card);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:10px}
.contact-form label{color:var(--muted);font-weight:600}
.contact-form .full{grid-column:1/-1}
.contact-form button{justify-self:end;grid-column:2}

.site-footer{border-top:1px solid var(--border);padding:24px 0;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1fr 1fr}
.footer-brand{display:flex;align-items:center;font-size:18px;color:#0b1f3a;margin-bottom:8px}

html.dark{--bg:#0b1120;--card:#0b1f3a;--text:#e5e7eb;--muted:#9ca3af;--primary:#60a5fa;--primary-2:#93c5fd;--border:#1f2937;--header-bg:rgba(11,17,32,.85)}
html.dark .section.alt{background:linear-gradient(180deg,#0b1f3a 0%,#0a2244 100%)}
html.dark .nav{background:rgba(11,17,32,.98)}
html.dark .btn-secondary{background:var(--card);color:var(--text)}

@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .platform-demo{grid-template-columns:1fr}
  .news-list{grid-template-columns:1fr}
  .values{grid-template-columns:1fr}
  .advantages{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .tl-item{flex:0 0 240px;min-height:180px;padding:20px}
  .marker{width:48px;height:48px;top:-68px;font-size:14px}
}

@media (max-width:720px){
  .nav{display:none;position:absolute;top:80px;left:0;right:0;background:rgba(255,255,255,.98);border-bottom:1px solid var(--border);padding:12px;flex-direction:column}
  .nav.open{display:flex}
  .hamburger{display:block}
  .logo-img{height:50px}
  .hero{padding:48px 0}
  .hero-copy h1{font-size:28px;line-height:1.3}
  .blob{width:220px;height:220px}
  .cta{flex-direction:column}
  .cta .btn{width:100%;text-align:center}
  .section{padding:40px 0}
  .feature-list li{padding:6px 10px;font-size:14px}
  #aboutText ul{list-style:disc;margin:0;padding-left:18px}
  #aboutText li{margin:8px 0}
  .cards{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .contact-form{grid-template-columns:1fr}
  .values{grid-template-columns:1fr}
  .advantages{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .timeline{gap:16px;padding:30px 0}
  .tl-item{flex:0 0 220px;min-height:160px;padding:16px}
  .tl-item h3{font-size:18px}
  .marker{width:40px;height:40px;top:-60px;font-size:12px}
  .year{font-size:16px;bottom:16px;right:16px}
}