:root{
  --navy:#0A3154;--navy2:#061F35;--blue:#1167C9;--cyan:#42C7EA;
  --teal:#12A88A;--mint:#70DDBD;--gold:#F2A51F;--ink:#132635;
  --muted:#667B89;--line:#DCE7ED;--soft:#F4F8FB;--white:#fff;
  --radius:22px;--shadow:0 22px 55px rgba(7,37,62,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:#fff;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:auto}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(40px,5vw,68px);line-height:1.08;letter-spacing:-.035em;margin-bottom:24px}
h2{font-size:clamp(30px,3.1vw,44px);line-height:1.2;letter-spacing:-.02em;margin-bottom:16px}
h3{font-size:21px;line-height:1.45}
.muted{color:var(--muted)}
.eyebrow{color:var(--teal);font-size:13px;letter-spacing:.15em;font-weight:800;text-transform:uppercase;margin-bottom:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;font-weight:800;transition:.25s;border:1px solid transparent}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--blue),#158CCA);box-shadow:0 10px 26px rgba(17,103,201,.2)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(17,103,201,.28)}
.btn-outline{color:var(--navy);border-color:rgba(10,49,84,.16);background:#fff}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
section{padding:88px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:42px}
.section-head p{max-width:620px;margin-bottom:4px}

/* Header */
header{position:fixed;inset:0 0 auto;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(10,49,84,.07);transition:.2s}
header.scrolled{box-shadow:0 8px 28px rgba(7,37,62,.08)}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-logo{width:48px;height:48px;object-fit:contain;filter:drop-shadow(0 5px 10px rgba(9,73,108,.08))}
.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}
.brand-cn{color:var(--navy);font-size:15px;font-weight:900;white-space:nowrap}
.brand-en{color:#6E8392;font-size:9px;letter-spacing:.11em;margin-top:5px;font-weight:700;white-space:nowrap}
nav ul{display:flex;gap:22px;list-style:none;padding:0;margin:0;font-size:14px;color:#31495B;font-weight:650}
nav a:hover{color:var(--blue)}
.menu-btn{display:none;border:0;background:transparent;font-size:26px;color:var(--navy);cursor:pointer}

/* Hero carousel */
.hero-carousel{padding:94px 0 24px;background:linear-gradient(180deg,#f5fafc,#fff)}
.carousel-shell{
  position:relative;width:min(1260px,90%);margin:0 auto;overflow:hidden;
  background:#eef7fb;border-radius:26px;box-shadow:0 14px 38px rgba(7,37,62,.08)
}
.carousel-track{display:flex;width:100%;transform:translate3d(0,0,0);transition:transform .8s cubic-bezier(.22,.61,.36,1);will-change:transform}
.carousel-slide{min-width:100%;flex:0 0 100%;display:flex;justify-content:center;align-items:center;padding:12px}
.carousel-slide img{
  width:100%;height:auto;aspect-ratio:1672/941;object-fit:contain;border-radius:18px;
  user-select:none;-webkit-user-drag:none
}
.carousel-controls{position:absolute;inset:0;pointer-events:none;display:flex;align-items:center;justify-content:space-between;padding:0 18px;z-index:3}
.carousel-arrow{
  pointer-events:auto;width:42px;height:42px;border:1px solid rgba(255,255,255,.7);border-radius:50%;
  background:rgba(5,46,80,.26);backdrop-filter:blur(8px);color:#fff;display:grid;place-items:center;cursor:pointer;
  font-size:23px;line-height:1;transition:.22s ease;box-shadow:0 7px 22px rgba(4,35,59,.14)
}
.carousel-arrow:hover{background:rgba(5,46,80,.52);transform:scale(1.04)}
.carousel-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:4;padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.66);backdrop-filter:blur(8px)}
.carousel-dot{width:8px;height:8px;padding:0;border:0;border-radius:50%;background:rgba(10,49,84,.28);cursor:pointer;transition:.25s}
.carousel-dot.active{width:24px;border-radius:999px;background:linear-gradient(90deg,var(--blue),var(--teal))}
.carousel-progress{position:absolute;left:0;bottom:0;width:100%;height:3px;z-index:5;background:rgba(255,255,255,.24);overflow:hidden}
.carousel-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--teal),var(--gold))}
.carousel-progress.running span{animation:heroProgress 5.5s linear forwards}
@keyframes heroProgress{from{width:0}to{width:100%}}

/* Home */
.home-intro{padding-top:54px}
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:22px;overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(10,49,84,.06)}
.proof-item{padding:26px 24px;border-right:1px solid var(--line);position:relative}
.proof-item:last-child{border-right:0}
.proof-item:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--teal),var(--gold))}
.proof-item strong{display:block;color:var(--navy);font-size:19px;margin-bottom:4px}

.split{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center}
.visual-card{background:#fff;border:1px solid #E5EDF2;border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.visual-card img{width:100%;height:100%;object-fit:cover;min-height:420px}
.lead{font-size:17px;color:var(--muted)}
.feature-list{display:grid;gap:16px;margin-top:28px}
.feature{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.feature:last-child{border-bottom:0}
.feature b{width:34px;height:34px;flex:0 0 34px;border-radius:50%;display:grid;place-items:center;background:#EAF8F4;color:var(--teal);font-size:13px}

.light{background:var(--soft)}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{display:block;padding:28px;border-radius:var(--radius);background:#fff;border:1px solid #E4EDF2;transition:.25s;min-height:216px;position:relative;overflow:hidden}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.icon{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;background:linear-gradient(145deg,#EAF6FD,#EAF9F5);color:var(--blue);font-weight:900;margin-bottom:22px;font-size:14px}
.card:nth-child(4n+2) .icon{color:var(--teal)}
.card:nth-child(4n+3) .icon{color:#D78308}
.card:nth-child(4n+4) .icon{color:#2452A5}
.card .more{position:absolute;left:28px;bottom:22px;color:var(--blue);font-weight:800;font-size:13px}

.advantage-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:54px;align-items:center}
.advantage-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.mini-card{background:#fff;border:1px solid #E4EDF2;border-radius:20px;padding:24px;box-shadow:0 10px 24px rgba(7,37,62,.05)}
.mini-card h3{margin-bottom:8px;font-size:19px}
.home-cta{padding-top:0}
.cta{background:radial-gradient(circle at 92% 20%,rgba(64,199,234,.20),transparent 23%),radial-gradient(circle at 80% 100%,rgba(243,165,31,.18),transparent 20%),linear-gradient(110deg,#0A2B44,#0D6B88);color:#fff;border-radius:28px;padding:46px;display:flex;align-items:center;justify-content:space-between;gap:30px;box-shadow:var(--shadow)}

/* Dynamic insights */
.insights{background:var(--soft)}
.news-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:20px}
.news{display:block;background:#fff;border-radius:20px;overflow:hidden;border:1px solid #E3EBEF;transition:.25s;min-width:0}
.news:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(7,37,62,.09)}
.news-cover{height:180px;background-size:cover;background-position:center}
.news.big .news-cover{height:280px}
.placeholder-cover{background:radial-gradient(circle at 25% 25%,rgba(111,221,189,.8),transparent 24%),radial-gradient(circle at 80% 72%,rgba(243,165,31,.35),transparent 22%),linear-gradient(135deg,#DCEEF5,#7ABFD0)}
.news-body{padding:22px}.news small{color:var(--teal);font-weight:900}.news h3{margin:8px 0 10px}
.news-meta{display:flex;justify-content:space-between;gap:12px;align-items:center}.news-meta time{font-size:12px;color:#8A9AA5}
.read-more{display:inline-block;margin-top:8px;color:var(--blue);font-size:13px;font-weight:800}
.insight-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:28px}
.insight-status{font-size:12px;color:#8A9AA5}

/* Sub pages */
.page-hero{padding:132px 0 70px;background:radial-gradient(circle at 84% 20%,rgba(66,199,234,.16),transparent 24%),radial-gradient(circle at 76% 92%,rgba(242,165,31,.11),transparent 20%),linear-gradient(135deg,#F4FAFD,#fff)}
.page-hero-grid{display:grid;grid-template-columns:1fr .92fr;gap:54px;align-items:center}
.page-hero .visual-card img{min-height:360px}
.breadcrumb{font-size:13px;color:#78909F;margin-bottom:18px}
.breadcrumb a{color:var(--blue)}
.service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.service-block{padding:30px;border:1px solid var(--line);border-radius:22px;background:#fff}
.service-block h3{color:var(--navy);margin-bottom:10px}
.service-block ul{margin:14px 0 0;padding-left:20px;color:var(--muted)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step{padding:28px 22px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px rgba(7,37,62,.05)}
.step em{display:block;font-style:normal;color:var(--blue);font-weight:900;font-size:12px;margin-bottom:8px;letter-spacing:.08em}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.contact-card{padding:30px;border:1px solid var(--line);border-radius:20px;background:#fff}
.contact-card strong{display:block;font-size:22px;color:var(--navy);margin:8px 0}

/* Footer */
footer{background:#061923;color:rgba(255,255,255,.72);padding:50px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:14px;color:#fff}
.footer-logo{width:58px;height:58px;object-fit:contain}
footer h4{color:#fff;margin-top:0}
footer a{display:block;margin:8px 0;font-size:14px}
.copyright{margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}
.copyright a{display:inline}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
.reveal.visible{opacity:1;transform:none}

@media(max-width:1000px){
  .menu-btn{display:block}
  nav{display:none;position:absolute;top:72px;left:4%;right:4%;background:#fff;border-radius:16px;box-shadow:var(--shadow);padding:12px}
  nav.open{display:block}nav ul{display:flex;flex-direction:column;gap:0}nav a{display:block;padding:12px 14px}
  .nav>.btn{display:none}
  .carousel-shell{width:94%}
  .proof-grid,.cards,.process-grid,.contact-grid,.foot-grid,.advantage-cards,.service-grid{grid-template-columns:1fr 1fr}
  .split,.advantage-grid,.page-hero-grid{grid-template-columns:1fr}
  .section-head,.cta{align-items:flex-start;flex-direction:column}
  .news-grid{grid-template-columns:1fr}
}
@media(max-width:650px){
  .nav{height:72px}.brand-logo{width:44px;height:44px}.brand-cn{font-size:13px}.brand-en{display:none}
  .hero-carousel{padding-top:84px}.carousel-shell{width:94%;border-radius:18px}.carousel-slide{padding:8px}
  .carousel-arrow{width:36px;height:36px;font-size:20px}.carousel-controls{padding:0 10px}
  .carousel-dots{bottom:9px;padding:5px 8px}.carousel-dot{width:7px;height:7px}.carousel-dot.active{width:21px}
  .proof-grid,.cards,.process-grid,.contact-grid,.foot-grid,.advantage-cards,.service-grid{grid-template-columns:1fr}
  .proof-item{border-right:0;border-bottom:1px solid var(--line)}
  section{padding:68px 0}.page-hero{padding:110px 0 56px}
  .cta{padding:30px}.visual-card img{min-height:260px}
}