:root{
  --blue:#075ee8;--blue2:#1477ff;--cyan:#22b8cf;--navy:#071d3d;
  --ink:#13253f;--muted:#66788f;--soft:#f4f8fd;--soft2:#edf5ff;
  --line:#dfe8f2;--white:#fff;--max:1240px;
  --shadow:0 16px 42px rgba(20,54,99,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.6}
a{text-decoration:none;color:inherit}
img{display:block;width:100%}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.hidden{display:none!important}

/* geo */
.geo-banner{display:none;background:#eaf6ff;border-bottom:1px solid #cde6fb;color:#255574}
.geo-banner.show{display:block}
.geo-inner{min-height:44px;display:flex;align-items:center;justify-content:center;gap:10px;font-size:13px}
.geo-btn{border:0;border-radius:999px;padding:7px 12px;font-weight:800}
.geo-go{background:var(--blue);color:#fff}.geo-stay{background:#fff;color:#355870;border:1px solid #cfe0eb}

/* navigation */
.topbar{background:var(--navy);color:#cfe0f6;font-size:11px}
.topbar .container{min-height:30px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar strong{color:#fff}
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);backdrop-filter:blur(16px);border-bottom:1px solid #e8eef5}
.nav-inner{height:72px;display:flex;align-items:center;gap:22px}
.logo{margin-right:auto;color:var(--blue);font-weight:950;font-size:21px;letter-spacing:.25px}
.logo small{display:block;color:#73859a;font-size:8px;letter-spacing:2.1px;font-weight:700;margin-top:-4px}
.menu{display:flex;align-items:center;gap:21px;font-size:13px;color:#283b57}
.menu a:hover{color:var(--blue)}
.nav-cta{background:var(--blue);color:#fff!important;padding:10px 15px;border-radius:9px;font-weight:900;box-shadow:0 8px 18px rgba(7,94,232,.18)}
.lang{position:relative}
.lang>button{border:1px solid var(--line);background:#fff;color:#2d425e;border-radius:9px;padding:9px 10px}
.lang-menu{display:none;position:absolute;right:0;top:43px;min-width:195px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:7px;box-shadow:0 18px 44px rgba(18,46,84,.14)}
.lang-menu.open{display:block}
.lang-menu a{display:block;padding:8px 10px;border-radius:8px;font-size:13px}
.lang-menu a:hover{background:#eef5ff;color:var(--blue)}
.mobile-toggle{display:none;background:none;border:0;font-size:25px;color:var(--navy)}

/* hero */
.hero{position:relative;overflow:hidden;background:
 radial-gradient(circle at 88% 16%,rgba(45,135,255,.16),transparent 28%),
 linear-gradient(135deg,#fbfdff 0%,#f2f8ff 100%);padding:66px 0 54px}
.hero-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:46px;align-items:center}
.eyebrow,.kicker{font-size:11px;text-transform:uppercase;letter-spacing:1.55px;color:var(--blue);font-weight:950}
.hero h1{font-size:clamp(43px,5.1vw,70px);line-height:1.03;letter-spacing:-2.4px;color:var(--navy);margin:11px 0 17px}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero p{font-size:16px;color:#5d7087;max-width:650px;margin:0}
.hero-media{border-radius:22px;overflow:hidden;border:1px solid #dfe8f3;background:#fff;box-shadow:0 22px 56px rgba(21,65,120,.13)}
.hero-media img{aspect-ratio:16/10;object-fit:cover}
.actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:25px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:47px;padding:0 19px;border-radius:9px;border:1px solid transparent;font-weight:900}
.primary{background:var(--blue);color:#fff;box-shadow:0 9px 22px rgba(7,94,232,.18)}
.secondary{background:#fff;border-color:#9dbdf1;color:var(--blue)}
.dark{background:var(--navy);color:#fff}
.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:11px;margin-top:26px}
.trust-item{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px}
.trust-item b{display:block;color:var(--navy);font-size:13px}
.trust-item span{display:block;color:#7890a7;font-size:10px;margin-top:3px}

/* common sections */
.section{padding:68px 0}
.section.soft{background:linear-gradient(180deg,#f8fbff,#f2f7fd)}
.section.deep{background:var(--navy);color:#fff}
.section.deep .head h2,.section.deep h3{color:#fff}
.section.deep .head p{color:#aac0d9}
.head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:27px}
.head h2{font-size:clamp(30px,3.7vw,45px);line-height:1.07;color:var(--navy);letter-spacing:-1.1px;margin:5px 0 0}
.head p{margin:0;color:var(--muted);max-width:590px}
.subhead{font-size:22px;color:var(--navy);margin:0 0 12px}
.lead{font-size:17px;color:#60748a;max-width:780px}

/* cards */
.product-grid,.application-grid,.market-grid,.feature-grid,.material-grid,.faq-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 46px rgba(20,54,99,.13)}
.card img{aspect-ratio:4/3;object-fit:cover;background:#edf4fc}
.card-body{padding:17px}
.card h3{font-size:18px;line-height:1.25;color:var(--navy);margin:0 0 6px}
.card p{font-size:12px;color:var(--muted);margin:0}
.card-link{display:inline-block;margin-top:12px;color:var(--blue);font-size:12px;font-weight:900}
.app-card{position:relative;min-height:250px;border-radius:18px;overflow:hidden;background:#123;box-shadow:var(--shadow)}
.app-card img{position:absolute;inset:0;height:100%;object-fit:cover}
.app-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,25,55,.02),rgba(4,25,55,.8))}
.app-copy{position:absolute;z-index:2;left:18px;right:18px;bottom:17px;color:#fff}
.app-copy h3{font-size:21px;margin:0 0 2px}
.app-copy p{font-size:11px;color:#d8e5f2;margin:0}
.app-copy span{display:inline-block;margin-top:8px;font-size:11px;font-weight:900;color:#9fd5ff}
.market-card{position:relative;min-height:235px;border-radius:18px;overflow:hidden;color:#fff;background:#123}
.market-card img{position:absolute;inset:0;height:100%;object-fit:cover}
.market-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(3,28,65,.03),rgba(3,28,65,.86))}
.market-copy{position:absolute;z-index:2;left:18px;right:18px;bottom:17px}
.market-copy small{font-weight:900;color:#bce4ff}
.market-copy h3{font-size:20px;line-height:1.2;margin:5px 0}
.market-copy p{font-size:11px;color:#d6e4ef;margin:0}

/* process */
.process-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:23px}
.steps{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:19px}
.step .num{display:grid;place-items:center;width:37px;height:37px;border-radius:50%;background:var(--blue);color:#fff;font-weight:950;margin-bottom:12px}
.step h3{color:var(--navy);font-size:15px;margin:0 0 5px}
.step p{font-size:12px;color:var(--muted);margin:0}
.callout{background:linear-gradient(135deg,#0a66e8,#0754c8);color:#fff;border-radius:20px;padding:27px;box-shadow:0 18px 45px rgba(7,94,232,.23)}
.callout h3{font-size:28px;line-height:1.15;margin:0 0 10px;color:#fff}
.callout p{color:#dbeaff;margin:0}

/* page hero */
.page-hero{background:linear-gradient(135deg,#fbfdff,#eef6ff);border-bottom:1px solid #e0e9f4;padding:58px 0 48px}
.page-hero-grid{display:grid;grid-template-columns:1fr .85fr;gap:35px;align-items:center}
.page-hero h1{font-size:clamp(38px,4.6vw,60px);line-height:1.04;letter-spacing:-1.7px;color:var(--navy);margin:9px 0 12px}
.page-hero p{color:#63788f;max-width:730px}
.page-hero .hero-media img{aspect-ratio:4/3}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.chip{padding:8px 11px;border:1px solid #d5e2ef;background:#fff;border-radius:999px;font-size:11px;font-weight:850;color:#3f5872}

/* product details */
.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.split.reverse .visual{order:2}
.visual{border-radius:19px;overflow:hidden;border:1px solid var(--line);background:#eff5fb;box-shadow:var(--shadow)}
.visual img{aspect-ratio:4/3;object-fit:cover}
.bullets{display:grid;gap:10px;margin:18px 0 0}
.bullet{display:flex;gap:10px;align-items:flex-start}
.bullet i{flex:0 0 23px;height:23px;border-radius:50%;display:grid;place-items:center;background:#e9f2ff;color:var(--blue);font-style:normal;font-weight:950}
.bullet b{display:block;color:var(--navy);font-size:13px}
.bullet span{display:block;color:#71859a;font-size:12px}
.module-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:13px}
.module{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}
.module .icon{font-size:23px;margin-bottom:8px}
.module h3{font-size:15px;margin:0 0 5px;color:var(--navy)}
.module p{font-size:11px;color:var(--muted);margin:0}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px}
table{width:100%;border-collapse:collapse;background:#fff;font-size:12px}
th,td{padding:13px 14px;border-bottom:1px solid #e8eef5;text-align:left;vertical-align:top}
th{background:#f4f8fd;color:#35506d;font-size:11px}
td strong{color:var(--navy)}

/* materials */
.material-grid{grid-template-columns:repeat(3,1fr)}
.material{background:#fff;border:1px solid var(--line);border-radius:17px;padding:19px}
.material .material-icon{font-size:28px;margin-bottom:8px}
.material h3{font-size:17px;color:var(--navy);margin:0 0 5px}
.material p{font-size:12px;color:var(--muted);margin:0}
.material ul{padding-left:18px;color:#6f8297;font-size:11px}

/* contact */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:23px}
.contact-panel{background:var(--navy);color:#fff;border-radius:20px;padding:27px}
.contact-panel h2{font-size:31px;line-height:1.1;margin:0 0 12px}
.contact-panel p{color:#b9cee2;font-size:13px}
.contact-points{display:grid;gap:12px;margin-top:22px}
.contact-point{border-top:1px solid rgba(255,255,255,.12);padding-top:12px}
.contact-point b{display:block;font-size:12px}
.contact-point span,.contact-point a{font-size:12px;color:#c7d9ea}
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.form{display:grid;gap:11px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.input{width:100%;padding:12px 13px;border:1px solid #dbe5ef;border-radius:9px;background:#fbfdff;outline:none;color:#17304c}
.input:focus{border-color:#8ab7fa;box-shadow:0 0 0 3px rgba(7,94,232,.08)}
textarea.input{min-height:115px;resize:vertical}
.form-note{font-size:10px;color:#8293a5;margin:0}
.toast{position:fixed;z-index:99;right:18px;bottom:18px;max-width:360px;background:#071d3d;color:#fff;border-radius:12px;padding:13px 15px;box-shadow:0 18px 45px rgba(0,0,0,.2);display:none;font-size:12px}
.toast.show{display:block}

/* about/support */
.feature-grid{grid-template-columns:repeat(3,1fr)}
.feature{background:#fff;border:1px solid var(--line);border-radius:17px;padding:20px}
.feature .icon{font-size:26px;margin-bottom:8px}
.feature h3{font-size:16px;color:var(--navy);margin:0 0 5px}
.feature p{font-size:12px;color:var(--muted);margin:0}
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:9px}
.timeline .step{min-height:155px}
.faq-grid{grid-template-columns:repeat(2,1fr)}
.faq{border:1px solid var(--line);border-radius:14px;padding:17px;background:#fff}
.faq h3{font-size:14px;color:var(--navy);margin:0 0 6px}
.faq p{font-size:12px;color:var(--muted);margin:0}

/* footer */
.footer{background:#071d3d;color:#9fb4ca;padding:44px 0 22px}
.footer .logo{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr .8fr .9fr;gap:24px}
.footer h4{margin:0 0 9px;color:#fff;font-size:13px}
.footer a{display:block;color:#a9bed1;font-size:11px;margin:5px 0}
.footer p{font-size:11px;color:#9fb4ca}
.footer-bottom{margin-top:24px;padding-top:15px;border-top:1px solid rgba(255,255,255,.1);font-size:10px;display:flex;justify-content:space-between;gap:20px}

/* responsive */
@media(max-width:1000px){
  .menu{display:none;position:absolute;left:0;right:0;top:72px;padding:18px 22px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start}
  .menu.open{display:flex}.mobile-toggle{display:block}.lang{margin-left:auto}
  .hero-grid,.page-hero-grid,.process-grid,.split,.contact-grid{grid-template-columns:1fr}
  .product-grid,.application-grid,.market-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid,.module-grid,.material-grid{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:650px){
  .container{width:min(var(--max),calc(100% - 26px))}
  .topbar .container{justify-content:center}.topbar .right{display:none}
  .hero{padding:48px 0 42px}.section{padding:52px 0}
  .product-grid,.application-grid,.market-grid,.feature-grid,.module-grid,.material-grid,.faq-grid,.trust-strip,.timeline,.footer-grid,.form-row{grid-template-columns:1fr}
  .head{display:block}.head p{margin-top:10px}
  .geo-inner{flex-direction:column;padding:9px 0}
  .footer-bottom{display:block}
}