:root{
  --blue:#0d4f92;
  --deep:#07305d;
  --sky:#e8f2fb;
  --red:#e63737;
  --text:#1f2a35;
  --muted:#667483;
  --line:#dce6f0;
  --light:#f5f8fb;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Malgun Gothic','Apple SD Gothic Neo',Arial,sans-serif;color:var(--text);line-height:1.65;background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:0 auto}
.topbar{background:var(--deep);color:#d9e8f8;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;gap:16px;padding:8px 0;flex-wrap:wrap}
.header{position:sticky;top:0;z-index:99;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 3px 14px rgba(0,0,0,.05)}
.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.logo-wrap{display:flex;align-items:center;gap:12px}
.logo-mark{width:44px;height:44px;object-fit:contain}
.logo-text{height:42px;width:auto;object-fit:contain}
.nav{display:flex;gap:30px;font-weight:800;color:#24384b}
.nav a{padding:26px 0;border-bottom:3px solid transparent}
.nav a:hover,.nav a.active{color:var(--blue);border-bottom-color:var(--blue)}
.menu-btn{display:none;background:var(--blue);color:#fff;border:0;border-radius:4px;padding:9px 13px;font-weight:800}
.hero{min-height:620px;color:#fff;background:
linear-gradient(90deg,rgba(6,31,58,.94),rgba(6,31,58,.6),rgba(6,31,58,.28)),
linear-gradient(135deg,#103f75,#176cab 52%,#e8f2fb);
display:flex;align-items:center;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-150px;bottom:-150px;width:520px;height:520px;border-radius:50%;border:80px solid rgba(255,255,255,.14)}
.hero .container{position:relative;z-index:1}
.hero-logo{max-width:680px;margin-bottom:28px}
.hero h1{font-size:52px;line-height:1.18;margin:0 0 18px;letter-spacing:-2px}
.hero p{font-size:21px;color:#eaf5ff;margin:0 0 34px;max-width:850px}
.hero-values{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 0}
.hero-values span{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);padding:9px 16px;border-radius:999px;font-weight:800}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 25px;border-radius:4px;font-weight:900}
.btn-primary{background:#fff;color:var(--blue)}
.btn-blue{background:var(--blue);color:#fff}
.btn-outline{border:1px solid rgba(255,255,255,.75);color:#fff}
.section{padding:86px 0}
.section.gray{background:var(--light)}
.title{text-align:center;margin-bottom:48px}
.eyebrow{color:var(--blue);font-weight:900;letter-spacing:.14em;font-size:13px}
.title h2{font-size:38px;margin:8px 0 12px;letter-spacing:-1px;color:#0f2030}
.title p{margin:0;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px;box-shadow:0 10px 26px rgba(13,79,146,.07)}
.card h3{margin:0 0 10px;color:var(--deep);font-size:23px}
.card p{margin:0;color:#5c6c7a}
.value-card{text-align:center}
.value-card .num{width:54px;height:54px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-weight:900}
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.about-img{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;box-shadow:0 12px 30px rgba(0,0,0,.08)}
.about-list{display:grid;gap:12px;margin-top:22px}
.about-list div{border-left:4px solid var(--blue);background:#fff;padding:13px 16px;border-radius:4px;box-shadow:0 4px 14px rgba(0,0,0,.04)}
.product-card{padding:0;overflow:hidden}
.product-head{height:126px;background:linear-gradient(135deg,var(--blue),#2e83c2);color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;padding:20px}
.product-head h3{color:#fff;margin:0;font-size:22px}
.product-body{padding:24px}
.product-body ul{margin:0;padding-left:19px;color:#526272}
.product-body li{margin:6px 0}
.sub-hero{background:linear-gradient(90deg,rgba(6,31,58,.94),rgba(6,31,58,.68)),linear-gradient(135deg,#0d4f92,#0b75ba);color:#fff;padding:78px 0}
.sub-hero h1{font-size:42px;margin:8px 0 4px}
.sub-hero p{margin:0;color:#dbefff}
.breadcrumb{font-size:14px;color:#c9def2}
.page{padding:70px 0}
.page-card{border:1px solid var(--line);border-radius:10px;background:#fff;padding:32px;margin-bottom:26px;box-shadow:0 8px 22px rgba(0,0,0,.04)}
.page-card h2{margin:0 0 18px;color:var(--deep)}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:10px;background:#fff}
table{width:100%;border-collapse:collapse;min-width:760px}
th,td{padding:15px;border-bottom:1px solid var(--line);text-align:left}
th{background:var(--deep);color:#fff}
td{color:#445464}
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.catalog-thumb{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 6px 18px rgba(0,0,0,.06)}
.catalog-thumb img{width:100%;height:auto}
.catalog-thumb div{padding:12px 14px;font-weight:800;color:var(--deep)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.info-line{padding:11px 0;border-bottom:1px dashed #cbd8e5}
.footer{background:#101c27;color:#c7d3df;padding:36px 0}
.footer .container{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
.footer b{color:#fff}
.notice{background:#fff7e8;border:1px solid #ffd58a;border-radius:8px;padding:14px 18px;color:#765200}
.download-box{display:flex;gap:15px;flex-wrap:wrap;margin-top:18px}
@media(max-width:960px){
  .nav{display:none;position:absolute;left:0;right:0;top:78px;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:15px 5%;border-bottom:1px solid var(--line)}
  .menu-btn{display:block}
  .hero h1{font-size:37px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.about,.contact-grid{grid-template-columns:1fr}
  .catalog-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:580px){
  .grid-4,.catalog-grid{grid-template-columns:1fr}
  .hero{min-height:560px}
  .logo-text{height:32px}
  .section{padding:60px 0}
  .hero p{font-size:18px}
}