:root{
  --bg:#0b1020;
  --bg2:#121a33;
  --card:#16203c;
  --text:#e8ecf6;
  --muted:#9aa6c4;
  --brand:#4f8cff;
  --brand2:#8b5cf6;
  --accent:#22d3ee;
  --line:#26314f;
  --radius:14px;
  --max:1180px;
  --glass:rgba(18,26,51,.62);
  --glass-border:rgba(120,150,255,.18);
  --shadow:0 18px 48px rgba(4,10,28,.55);
  --shadow-soft:0 8px 24px rgba(4,10,28,.35);
  --grad-brand:linear-gradient(120deg,#4f8cff 0%,#8b5cf6 55%,#22d3ee 100%);
  --grad-hero:radial-gradient(1200px 520px at 12% -12%,rgba(79,140,255,.30),transparent 62%),radial-gradient(900px 420px at 92% -6%,rgba(139,92,246,.24),transparent 62%),radial-gradient(700px 380px at 50% 110%,rgba(34,211,238,.14),transparent 60%);
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 420px at 8% -6%,rgba(79,140,255,.10),transparent 60%),
    radial-gradient(800px 380px at 96% 4%,rgba(139,92,246,.09),transparent 60%);
  background-attachment:fixed;
  transition:background-color .35s ease,color .35s ease;
}

img,svg{max-width:100%;display:block}

a{color:var(--brand);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:var(--accent)}

::selection{background:rgba(79,140,255,.42);color:#fff}

.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}

/* ============ Header ============ */
header.site{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(11,16,32,.72);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid var(--line);
  transition:background .35s ease,border-color .35s ease;
}

.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}

.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text);letter-spacing:.3px}
.logo svg{width:34px;height:34px;flex:none;border-radius:9px;transition:transform .35s ease,filter .35s ease}
.logo:hover svg{transform:rotate(-6deg) scale(1.06);filter:drop-shadow(0 6px 16px rgba(79,140,255,.5))}
.logo span small{display:block;font-size:11px;color:var(--muted);font-weight:400;letter-spacing:.6px;line-height:1.4}

.menu{display:flex;gap:22px;list-style:none;align-items:center}
.menu a{color:var(--muted);font-size:15px;position:relative;padding:4px 0}
.menu a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;border-radius:2px;
  background:var(--grad-brand);transition:width .28s ease;
}
.menu a:hover{color:var(--text)}
.menu a:hover::after{width:100%}

.nav-tools{display:flex;align-items:center;gap:10px}

.search-box{
  display:flex;align-items:center;gap:6px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:999px;
  padding:6px 12px;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,140,255,.18)}
.search-box input{background:transparent;border:0;outline:0;color:var(--text);width:130px;font-size:14px}
.search-box input::placeholder{color:var(--muted)}
.search-box button{background:transparent;border:0;color:var(--muted);cursor:pointer;font-size:14px;display:flex;align-items:center;transition:color .2s ease}
.search-box button:hover{color:var(--brand)}

.icon-btn{
  width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:border-color .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:0 8px 20px rgba(79,140,255,.28)}
.icon-btn:active{transform:translateY(0) scale(.96)}

.mobile-toggle{display:none}

/* ============ Hero ============ */
.hero{
  position:relative;
  overflow:hidden;
  padding:74px 0 64px;
  background:var(--grad-hero);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,150,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,150,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
}

.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;position:relative;z-index:1}

.hero h1{font-size:40px;line-height:1.24;letter-spacing:.4px;margin-bottom:18px;font-weight:800}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(90deg,var(--brand),var(--accent) 60%,var(--brand2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% auto;
  animation:shine 6s linear infinite;
}
@keyframes shine{to{background-position:200% center}}

.hero p.lead{color:var(--muted);font-size:17px;margin-bottom:26px;max-width:560px}

.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:999px;
  font-weight:600;font-size:15px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
}
.btn-primary{
  background:var(--grad-brand);
  background-size:160% auto;
  color:#fff;
  box-shadow:0 10px 26px rgba(79,140,255,.32);
}
.btn-primary:hover{transform:translateY(-3px);color:#fff;background-position:right center;box-shadow:0 16px 34px rgba(79,140,255,.45)}
.btn-primary:active{transform:translateY(-1px)}
.btn-ghost{
  border-color:var(--line);
  color:var(--text);
  background:var(--glass);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-3px);box-shadow:0 12px 26px rgba(79,140,255,.22)}

.hero-stats{display:flex;gap:30px;flex-wrap:wrap}
.stat b{
  font-size:26px;display:block;line-height:1.3;
  background:linear-gradient(90deg,var(--accent),var(--brand));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat span{color:var(--muted);font-size:13px}

/* ============ Carousel ============ */
.carousel{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--glass-border);
  background:var(--card);
  aspect-ratio:4/3;
  box-shadow:var(--shadow);
}
.carousel::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.06),transparent 30%,rgba(0,0,0,.22));
}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .8s ease;display:flex;align-items:center;justify-content:center}
.slide.active{opacity:1}
.slide svg{width:100%;height:100%}

.dots{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:2}
.dots button{
  width:9px;height:9px;border-radius:50%;border:0;
  background:rgba(255,255,255,.4);cursor:pointer;padding:0;
  transition:width .3s ease,background .3s ease;
}
.dots button.active{background:var(--accent);width:22px;border-radius:5px}
.dots button:hover{background:rgba(255,255,255,.72)}

/* ============ Breadcrumb ============ */
.breadcrumb{font-size:13px;color:var(--muted);padding:16px 0;border-bottom:1px solid var(--line)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}

/* ============ Sections ============ */
section{padding:64px 0;position:relative}

.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:30px;margin-bottom:12px;line-height:1.32;font-weight:800;letter-spacing:.2px}
.section-head p{color:var(--muted)}

.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:2px;
  color:var(--accent);text-transform:uppercase;margin-bottom:10px;
  padding:3px 10px;border-radius:999px;
  border:1px solid rgba(34,211,238,.28);
  background:rgba(34,211,238,.08);
}

/* ============ Grids ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}

/* ============ Cards ============ */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  backdrop-filter:blur(12px) saturate(150%);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease,background .3s ease;
  position:relative;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:0;
  background:radial-gradient(420px 200px at 20% 0%,rgba(79,140,255,.16),transparent 70%);
  transition:opacity .35s ease;
}
.card:hover{transform:translateY(-5px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
.card:hover::before{opacity:1}
.card h3{font-size:19px;margin-bottom:10px;position:relative}
.card p{color:var(--muted);font-size:15px;position:relative}

.card .ico{
  width:46px;height:46px;border-radius:12px;
  background:linear-gradient(135deg,rgba(79,140,255,.24),rgba(139,92,246,.24));
  border:1px solid rgba(120,150,255,.22);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
  transition:transform .35s ease,box-shadow .35s ease;
}
.card:hover .ico{transform:rotate(-6deg) scale(1.06);box-shadow:0 8px 22px rgba(79,140,255,.3)}
.card .ico svg{width:24px;height:24px}

/* ============ Reveal ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .75s cubic-bezier(.2,.7,.2,1),transform .75s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============ About ============ */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.about-text h3{font-size:20px;margin-bottom:12px}
.about-text p{color:var(--muted);margin-bottom:14px}

.timeline{list-style:none;border-left:2px solid var(--line);padding-left:24px;margin-top:6px}
.timeline li{position:relative;margin-bottom:22px}
.timeline li::before{
  content:"";position:absolute;left:-31px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(79,140,255,.2);
  transition:transform .3s ease,box-shadow .3s ease;
}
.timeline li:hover::before{transform:scale(1.25);box-shadow:0 0 0 6px rgba(79,140,255,.28)}
.timeline b{display:block;color:var(--accent);font-size:14px}
.timeline span{color:var(--muted);font-size:14px}

.culture-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:18px}
.culture-list div{
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:10px;
  padding:16px;
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.culture-list div:hover{transform:translateY(-3px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
.culture-list b{display:block;margin-bottom:6px}
.culture-list span{color:var(--muted);font-size:14px}

/* ============ Articles ============ */
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}

.article-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  display:flex;flex-direction:column;
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  backdrop-filter:blur(12px) saturate(150%);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  position:relative;
  overflow:hidden;
}
.article-card::after{
  content:"";position:absolute;left:0;top:0;height:100%;width:3px;
  background:var(--grad-brand);
  transform:scaleY(0);transform-origin:top;
  transition:transform .35s ease;
}
.article-card:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
.article-card:hover::after{transform:scaleY(1)}
.article-card .meta{font-size:12px;color:var(--muted);margin-bottom:8px;display:flex;gap:12px;flex-wrap:wrap}
.article-card h3{font-size:18px;margin-bottom:10px;line-height:1.45}
.article-card p{color:var(--muted);font-size:14px;flex:1;margin-bottom:14px}
.article-card .more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:4px;transition:gap .25s ease}
.article-card:hover .more{gap:9px}

/* ============ Cases ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

.case{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  backdrop-filter:blur(12px) saturate(150%);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.case:hover{transform:translateY(-5px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
.case .thumb{aspect-ratio:16/10;background:var(--bg2);overflow:hidden}
.case .thumb svg{transition:transform .5s ease}
.case:hover .thumb svg{transform:scale(1.06)}
.case .body{padding:20px}
.case h3{font-size:17px;margin-bottom:8px}
.case p{color:var(--muted);font-size:14px}
.case .tag{
  display:inline-block;font-size:12px;color:var(--accent);
  border:1px solid var(--line);border-radius:999px;
  padding:2px 10px;margin-bottom:10px;
  background:rgba(34,211,238,.06);
}

/* ============ Testimonials ============ */
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}

.quote{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  position:relative;
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  backdrop-filter:blur(12px) saturate(150%);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.quote:hover{transform:translateY(-4px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
.quote::before{
  content:"\201C";font-size:60px;color:var(--brand);opacity:.3;
  position:absolute;top:6px;left:18px;line-height:1;font-family:Georgia,serif;
}
.quote p{color:var(--text);font-size:15px;margin:16px 0 18px}
.quote .who{display:flex;align-items:center;gap:12px}
.quote .who svg{width:40px;height:40px;border-radius:50%;flex:none}
.quote .who b{display:block;font-size:14px}
.quote .who span{font-size:12px;color:var(--muted)}

/* ============ HowTo ============ */
.howto-steps{counter-reset:step;display:grid;gap:18px}

.howto-step{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px 22px 74px;
  position:relative;
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  backdrop-filter:blur(12px) saturate(150%);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.howto-step:hover{transform:translateX(4px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
.howto-step::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:22px;top:22px;width:36px;height:36px;border-radius:10px;
  background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#fff;
  box-shadow:0 8px 18px rgba(79,140,255,.32);
  transition:transform .3s ease;
}
.howto-step:hover::before{transform:rotate(-8deg) scale(1.08)}
.howto-step h3{font-size:17px;margin-bottom:8px}
.howto-step p{color:var(--muted);font-size:14px}

/* ============ FAQ ============ */
.faq-item{
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  background:var(--glass);
  overflow:hidden;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:border-color .28s ease,box-shadow .28s ease;
}
.faq-item:hover{border-color:rgba(79,140,255,.55)}
.faq-item.open{border-color:var(--brand);box-shadow:var(--shadow-soft)}

.faq-q{
  width:100%;text-align:left;background:transparent;border:0;color:var(--text);
  padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:inherit;
  transition:color .22s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q .plus{transition:transform .3s ease,color .3s ease;color:var(--brand);font-size:22px;line-height:1;flex:none}
.faq-item.open .plus{transform:rotate(45deg)}

.faq-a{max-height:0;overflow:hidden;transition:max-height .38s cubic-bezier(.2,.7,.2,1);color:var(--muted);font-size:15px}
.faq-a div{padding:0 22px 20px}

/* ============ News ============ */
.news-list{display:grid;gap:14px}

.news-item{
  display:flex;gap:18px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:12px;
  padding:18px 22px;
  align-items:center;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.news-item:hover{transform:translateX(4px);border-color:var(--brand);box-shadow:var(--shadow-soft)}
.news-item time{color:var(--accent);font-size:13px;flex:none;width:96px}
.news-item b{font-size:15px;font-weight:600}
.news-item p{color:var(--muted);font-size:13px;margin-top:4px}

/* ============ Contact ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px}

.contact-info{list-style:none;display:grid;gap:16px}
.contact-info li{display:flex;gap:14px;align-items:flex-start}
.contact-info svg{width:22px;height:22px;flex:none;color:var(--brand);margin-top:4px}
.contact-info b{display:block;font-size:14px}
.contact-info span{color:var(--muted);font-size:14px}

.form{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  box-shadow:var(--shadow-soft);
}
.form label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
.form input,.form textarea,.form select{
  width:100%;
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:10px;
  padding:11px 14px;
  color:var(--text);
  font-size:14px;
  margin-bottom:16px;
  outline:0;
  font-family:inherit;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.form input:focus,.form textarea:focus,.form select:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(79,140,255,.18);
}
.form textarea{resize:vertical;min-height:110px}

/* ============ Footer ============ */
footer.site{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,26,51,.7),rgba(11,16,32,.95));
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  padding:56px 0 24px;
  margin-top:20px;
}

.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px}
.footer-grid h4{font-size:15px;margin-bottom:16px}
.footer-grid ul{list-style:none;display:grid;gap:10px}
.footer-grid a{color:var(--muted);font-size:14px;transition:color .22s ease,padding-left .22s ease}
.footer-grid a:hover{color:var(--brand);padding-left:4px}
.footer-grid p{color:var(--muted);font-size:14px;margin-top:12px}

.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted);font-size:13px;
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ Back to top ============ */
#backTop{
  position:fixed;right:22px;bottom:22px;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  opacity:0;pointer-events:none;
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:opacity .3s ease,transform .3s ease,border-color .3s ease,color .3s ease,box-shadow .3s ease;
  z-index:99;
}
#backTop.show{opacity:1;pointer-events:auto}
#backTop:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-3px);box-shadow:0 10px 24px rgba(79,140,255,.3)}

/* ============ Light theme ============ */
.light{
  --bg:#f5f7fb;
  --bg2:#ffffff;
  --card:#ffffff;
  --text:#111a2e;
  --muted:#5a6580;
  --line:#e2e8f2;
  --glass:rgba(255,255,255,.72);
  --glass-border:rgba(79,140,255,.18);
  --shadow:0 18px 48px rgba(20,40,90,.12);
  --shadow-soft:0 8px 24px rgba(20,40,90,.10);
  --grad-hero:radial-gradient(1200px 520px at 12% -12%,rgba(79,140,255,.16),transparent 62%),radial-gradient(900px 420px at 92% -6%,rgba(139,92,246,.12),transparent 62%),radial-gradient(700px 380px at 50% 110%,rgba(34,211,238,.10),transparent 60%);
}
.light header.site{background:rgba(255,255,255,.72)}
.light .search-box input{color:var(--text)}
.light footer.site{background:linear-gradient(180deg,rgba(255,255,255,.8),rgba(245,247,251,.96))}
.light .btn-ghost{color:var(--text)}
.light .quote::before{opacity:.18}

/* ============ Responsive ============ */
@media(max-width:1024px){
  .hero h1{font-size:34px}
  .grid-3,.case-grid,.testimonials{grid-template-columns:1fr 1fr}
}

@media(max-width:960px){
  .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
  .hero{padding:56px 0 48px}
  .hero p.lead{max-width:100%}
  .carousel{max-width:560px;margin:0 auto;width:100%}
  .grid-3,.case-grid,.testimonials{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}

  .menu{
    display:none;
    position:absolute;top:64px;left:0;right:0;
    background:var(--glass);
    -webkit-backdrop-filter:blur(18px) saturate(160%);
    backdrop-filter:blur(18px) saturate(160%);
    border-bottom:1px solid var(--line);
    flex-direction:column;
    padding:16px 20px;
    gap:14px;
    align-items:flex-start;
    box-shadow:var(--shadow-soft);
  }
  .menu.open{display:flex;animation:menuIn .28s ease}
  @keyframes menuIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
  .menu a{font-size:16px;width:100%}
  .mobile-toggle{display:flex}
  .search-box{display:none}
  .hero h1{font-size:30px}
}

@media(max-width:640px){
  .grid-3,.grid-2,.case-grid,.testimonials,.article-grid,.footer-grid,.culture-list{grid-template-columns:1fr}
  section{padding:48px 0}
  .hero{padding:48px 0 40px}
  .hero h1{font-size:26px}
  .hero-stats{gap:20px}
  .stat b{font-size:22px}
  .section-head h2{font-size:24px}
  .news-item{flex-direction:column;align-items:flex-start;gap:6px}
  .news-item time{width:auto}
  .howto-step{padding:20px 18px 20px 66px}
  .howto-step::before{left:18px;top:20px;width:32px;height:32px}
  .card,.article-card,.quote,.form{padding:20px}
  #backTop{right:14px;bottom:14px;width:42px;height:42px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}