:root{
  --blue:#2563eb; --blue-d:#1d4ed8; --ink:#0f172a; --slate:#475569; --mut:#64748b;
  --bg:#ffffff; --alt:#f6f8fc; --line:#e2e8f0; --card:#ffffff;
  --dark:#0b1220; --dark2:#111a2e; --dark-line:rgba(148,163,184,.18);
  --r:14px; --ff:'Pretendard Variable',Pretendard,system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--ff);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--blue);color:#fff;padding:8px 16px;z-index:99}
.skip-link:focus{left:8px;top:8px}
.muted{color:var(--mut)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px}
.brand-mark{height:40px;width:auto}
.site-nav{display:flex;gap:22px;margin-left:auto;font-size:15px;font-weight:600}
.site-nav a{color:var(--slate)}
.site-nav a:hover{color:var(--ink)}
.nav-cta{color:var(--blue)!important}
.lang-toggle{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang-btn{border:0;background:transparent;padding:6px 10px;font:600 12px/1 var(--ff);color:var(--mut);cursor:pointer}
.lang-btn.active{background:var(--ink);color:#fff}

/* hero — dark */
.hero{background:radial-gradient(1200px 600px at 75% -10%,#1e3a8a33,transparent),linear-gradient(180deg,var(--dark),var(--dark2));color:#e8edf6;padding:88px 0 72px}
.hero .eyebrow{color:#7ea2ff;font:700 12px/1.4 var(--ff);letter-spacing:.18em;margin-bottom:20px}
.hero h1{font-size:clamp(38px,5.6vw,64px);line-height:1.08;font-weight:800;letter-spacing:-.02em}
.line-mask{display:block;overflow:hidden}
.line{display:block;animation:rise .8s cubic-bezier(.2,.7,.2,1) both}
.line-mask:nth-child(2) .line{animation-delay:.12s}
.accent{color:#7ea2ff}
@keyframes rise{from{transform:translateY(110%)}to{transform:none}}
.hero-sub{max-width:560px;margin:22px 0 30px;color:#aebad0;font-size:17px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;padding:12px 22px;border-radius:10px;font:700 15px/1 var(--ff);border:1px solid transparent;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--blue);color:#fff!important;box-shadow:0 8px 24px -8px #2563eb88}
.btn-primary:hover{background:var(--blue-d)}
.hero .btn-ghost{color:#e8edf6;border-color:var(--dark-line);background:rgba(148,163,184,.08)}
.hero-stats{display:flex;gap:40px;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--dark-line)}
.hero-stats dt{font-size:26px;font-weight:800;color:#fff}
.hero-stats dd{font-size:13px;color:#8ea0bd;margin-top:2px}
.hero-shot{margin:56px 0 0;border-radius:var(--r);overflow:hidden;border:1px solid var(--dark-line);box-shadow:0 40px 80px -30px rgba(0,0,0,.6)}
.hero-shot figcaption{background:var(--dark2);color:#8ea0bd;font-size:12px;padding:10px 16px;border-top:1px solid var(--dark-line)}

/* sections */
.section{padding:88px 0}
.section-alt{background:var(--alt)}
.section-eyebrow{position:relative;font:700 12px/1 var(--ff);letter-spacing:.18em;color:var(--blue);padding-left:44px;margin-bottom:14px}
.section-eyebrow::before{content:attr(data-idx);position:absolute;left:0;color:var(--mut)}
.section-title{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.02em;margin-bottom:14px}
.section-lead{max-width:640px;color:var(--slate);font-size:17px;margin-bottom:40px}

.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;transition:border-color .2s,box-shadow .2s}
.card:hover{border-color:#c7d6f8;box-shadow:0 12px 32px -16px #2563eb33}
.card h3{font-size:17px;margin-bottom:8px}
.card p{font-size:14px;color:var(--slate)}
.product-cta{margin-top:36px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.btn-ghost{border-color:var(--line);color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.product-cta .muted{font-size:14px}

/* timeline */
.timeline{list-style:none;display:flex;flex-direction:column;gap:0;max-width:720px}
.timeline li{display:flex;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}
.timeline li:last-child{border-bottom:0}
.timeline .yr{flex:0 0 76px;font:800 15px/1.6 var(--ff);color:var(--blue)}
.timeline strong{display:block;font-size:16px;margin-bottom:4px}
.timeline p{font-size:14px;color:var(--slate)}
.timeline.compact li{padding:14px 0}

/* services */
.service-list{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:44px}
.service-list li{background:var(--alt);border:1px solid var(--line);border-radius:12px;padding:18px}
.service-list strong{display:block;font-size:15px;margin-bottom:4px}
.service-list span{font-size:13px;color:var(--mut)}
.partners .muted{font:700 12px/1 var(--ff);letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.chip-row{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.chip-row li{border:1px solid var(--line);border-radius:999px;padding:8px 18px;font:600 14px/1 var(--ff);color:var(--slate);background:#fff}
.chip-more{border-style:dashed!important;color:var(--mut)!important}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;margin-bottom:32px}
.contact-item p:first-child{font:700 12px/1 var(--ff);letter-spacing:.14em;text-transform:uppercase;color:var(--mut);margin-bottom:10px}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:32px 0;color:var(--mut);font-size:14px}
.footer-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.sticky-cta{position:fixed;right:20px;bottom:20px;z-index:40;background:var(--blue);color:#fff;font:700 14px/1 var(--ff);padding:14px 22px;border-radius:999px;box-shadow:0 12px 32px -8px #2563eb66}
.sticky-cta:hover{background:var(--blue-d)}

@media (max-width:760px){
  .site-nav{display:none}
  .hero{padding:64px 0 56px}
  .hero-stats{gap:24px;flex-wrap:wrap}
  .section{padding:64px 0}
}