:root{
  --navy:#0b1b3a; --navy2:#12274f; --blue:#2f7bff; --cyan:#22d3ee;
  --bg:#f6f8fc; --card:#ffffff; --ink:#0f1c33; --muted:#5b6b85; --line:#e2e8f2;
  --radius:16px; --maxw:1120px; --navh:64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR","Segoe UI",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;word-break:keep-all;overflow-wrap:break-word}
a{color:inherit;text-decoration:none}
[hidden]{display:none!important}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
section{padding:80px 0}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:12px}
h2{font-size:clamp(1.6rem,3.2vw,2.2rem);line-height:1.3;letter-spacing:-.02em;margin-bottom:14px}
.lead{color:var(--muted);max-width:700px;font-size:1.05rem}
.head{margin-bottom:40px}
.alt{background:#eef3fb}

/* header / nav */
header{position:sticky;top:0;z-index:50;background:rgba(11,27,58,.94);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--navh)}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.15rem;letter-spacing:-.01em}
.brand img{height:40px;width:auto;display:block}
.brand b{color:var(--cyan);font-weight:800}
nav ul{display:flex;gap:28px;list-style:none;align-items:center}
nav ul>li{position:relative}
nav ul>li>a{display:block;padding:calc((var(--navh) - 1.4em)/2) 0;color:#cbd6ea;font-size:.92rem;font-weight:500;line-height:1.4;transition:color .15s;position:relative}
nav ul>li>a:hover,nav ul>li>a[aria-current]{color:#fff}
nav ul>li>a[aria-current]::after{content:"";position:absolute;left:0;right:0;bottom:12px;height:2px;background:var(--cyan);border-radius:2px}
.has-sub>a::before{content:"";position:absolute;right:-14px;top:50%;width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:translateY(-70%) rotate(45deg)}
.has-sub{margin-right:10px}
.sub{position:absolute;top:100%;left:-16px;min-width:230px;background:var(--navy2);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:8px;list-style:none;display:none;box-shadow:0 18px 40px rgba(0,0,0,.35)}
.has-sub:hover .sub,.has-sub:focus-within .sub{display:block}
.sub a{display:block;padding:11px 14px;border-radius:9px;color:#cbd6ea;font-size:.9rem}
.sub a small{display:block;color:#8ea0c2;font-size:.76rem;margin-top:1px}
.sub a:hover,.sub a[aria-current]{background:rgba(255,255,255,.07);color:#fff}
.lang{border:1px solid rgba(255,255,255,.25);background:transparent;color:#cbd6ea;border-radius:999px;padding:5px 12px;font-size:.8rem;font-weight:600;cursor:pointer;font-family:inherit}
.lang:hover{color:#fff;border-color:#fff}
.burger{display:none;background:none;border:0;color:#fff;font-size:1.6rem;cursor:pointer}

/* hero (home) */
.hero{background:radial-gradient(1200px 500px at 85% -10%,rgba(47,123,255,.35),transparent 60%),
  radial-gradient(800px 400px at 0% 100%,rgba(34,211,238,.18),transparent 60%),var(--navy);
  color:#fff;padding:18px 0;position:relative;overflow:hidden}
.hero::before,.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,#000 30%,transparent 95%)}
.hero .wrap,.page-hero .wrap{position:relative}
.hero .eyebrow,.page-hero .eyebrow{color:var(--cyan)}
.hero h1{font-size:clamp(2.1rem,5vw,3.6rem);line-height:1.2;letter-spacing:-.03em;margin-bottom:0;max-width:820px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#7db4ff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 24px;border-radius:12px;font-weight:700;font-size:.95rem;transition:transform .15s,box-shadow .15s,background .15s}
.btn.primary{background:var(--blue);color:#fff;box-shadow:0 8px 24px rgba(47,123,255,.35)}
.btn.primary:hover{transform:translateY(-2px);background:#4a8dff}
.btn.ghost{border:1px solid rgba(255,255,255,.3);color:#fff}
.btn.ghost:hover{background:rgba(255,255,255,.08)}
.btn.white{background:#fff;color:#1b56d6}
.btn.white:hover{transform:translateY(-2px)}
.demo-note{margin-top:14px;font-size:.85rem;color:#9fb0cf;max-width:660px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:52px}
.stat{border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:18px 20px;background:rgba(255,255,255,.04)}
.stat b{display:block;font-size:2rem;letter-spacing:-.02em;color:#fff;line-height:1.1}
.stat span{color:#9fb0cf;font-size:.85rem}

/* inner page hero */
.page-hero{background:radial-gradient(900px 380px at 90% -20%,rgba(47,123,255,.32),transparent 60%),var(--navy);color:#fff;padding:64px 0 56px;position:relative;overflow:hidden}
.crumb{font-size:.82rem;color:#8ea0c2;margin-bottom:14px}
.crumb a:hover{color:#fff}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.7rem);line-height:1.25;letter-spacing:-.025em;margin-bottom:14px;max-width:820px}
.page-hero .lead{color:#b7c5de;max-width:720px}
.page-hero .stats{margin-top:36px}

/* cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(3,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .2s,box-shadow .2s,border-color .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(15,28,51,.08);border-color:#cfdaf0}
.card h3{font-size:1.15rem;margin-bottom:8px;letter-spacing:-.01em}
.card p{color:var(--muted);font-size:.95rem}
.card .num{display:block;color:var(--blue);font-size:.85rem;font-weight:700;margin-bottom:10px;letter-spacing:.06em}
.ico{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,rgba(47,123,255,.14),rgba(34,211,238,.18));display:grid;place-items:center;font-size:1.3rem;margin-bottom:16px}
.more{display:inline-block;margin-top:16px;font-weight:700;color:var(--blue);font-size:.92rem}
.more::after{content:" →";transition:margin .15s}
.more:hover::after{margin-left:4px}
.product{padding:36px}
.product .tag{display:inline-block;font-size:.72rem;font-weight:700;letter-spacing:.08em;padding:4px 10px;border-radius:999px;background:#e8f0ff;color:var(--blue);margin-bottom:14px}
.product h3{font-size:1.5rem;margin-bottom:10px}
.product ul,.tick{list-style:none;margin-top:18px;display:grid;gap:10px}
.product li,.tick li{position:relative;padding-left:24px;color:#33425e;font-size:.95rem}
.product li::before,.tick li::before{content:"";position:absolute;left:0;top:.5em;width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan))}
.dark{background:var(--navy);color:#fff}
.dark .lead{color:#a9b9d6}
.dark .eyebrow{color:var(--cyan)}
.dark .card{background:var(--navy2);border-color:rgba(255,255,255,.1)}
.dark .card p{color:#a9b9d6}
.dark .card:hover{border-color:rgba(34,211,238,.4);box-shadow:0 14px 34px rgba(0,0,0,.3)}
.dark .more{color:var(--cyan)}
.dark .ico{background:rgba(255,255,255,.08)}
.lab .n{font-size:.78rem;font-weight:700;color:var(--cyan);margin-bottom:8px;letter-spacing:.04em}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.chip{border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:6px 14px;font-size:.85rem;color:#cbd6ea;background:rgba(255,255,255,.04)}

/* about */
.about{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.person{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;border-radius:var(--radius);padding:36px}
.person .av{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));display:grid;place-items:center;font-size:1.8rem;font-weight:800;margin-bottom:18px}
.person h3{font-size:1.4rem}
.person small{color:#9fb0cf;display:block;margin-top:4px}
.facts{list-style:none;display:grid;gap:16px}
.facts li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 22px}
.facts b{display:block;margin-bottom:4px}
.facts span{color:var(--muted);font-size:.94rem}

/* roadmap */
.road{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.road::before{content:"";position:absolute;left:0;right:0;top:9px;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan));opacity:.5}
.step{position:relative;padding-top:34px}
.step::before{content:"";position:absolute;top:0;left:0;width:20px;height:20px;border-radius:50%;background:var(--navy);border:4px solid var(--cyan)}
.step b{display:block;color:var(--cyan);font-size:.85rem;margin-bottom:6px}
.step h4{font-size:1.02rem;margin-bottom:6px}
.step p{color:#a9b9d6;font-size:.9rem}
.note{color:#8ea0c2;font-size:.82rem;margin-top:26px}

/* cta / contact */
.cta{background:linear-gradient(135deg,var(--blue),#1b56d6);color:#fff;border-radius:24px;padding:52px 44px;display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center}
.cta h2{color:#fff}
.cta p{color:#dbe7ff}
.cta.solo{grid-template-columns:1fr auto}
.info{background:rgba(255,255,255,.12);border-radius:14px;padding:22px 24px;font-size:.94rem;display:grid;gap:12px}
.info b{display:block;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:#bcd2ff;margin-bottom:2px}
.info a{text-decoration:underline}
.mailbig{font-size:1.15rem;font-weight:700;word-break:break-all}

footer{background:var(--navy);color:#8ea0c2;padding:44px 0;font-size:.85rem}
footer .row{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
footer .brand{margin-bottom:10px}
footer .links{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:14px}
footer .links a:hover{color:#fff}
footer dl{display:grid;grid-template-columns:auto 1fr;gap:4px 14px}
footer dt{color:#6f83a8}
footer .copy{margin-top:28px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);color:#6f83a8}

.js .rv{opacity:0;transform:translateY(18px);transition:opacity .6s,transform .6s}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

@media (max-width:960px){
  .about,.cta,.cta.solo{grid-template-columns:1fr}
  .stats,.g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .road{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .road::before{display:none}
}
@media (max-width:860px){
  .burger{display:block}
  nav ul{display:none;position:absolute;top:var(--navh);left:0;right:0;background:var(--navy);flex-direction:column;align-items:flex-start;padding:10px 20px 22px;gap:0;border-bottom:1px solid rgba(255,255,255,.1);max-height:calc(100vh - var(--navh));overflow:auto}
  nav ul.open{display:flex}
  nav ul>li{width:100%}
  nav ul>li>a{padding:13px 0}
  nav ul>li>a[aria-current]::after{display:none}
  nav ul>li>a[aria-current]{color:var(--cyan)}
  .has-sub{margin-right:0}
  .has-sub>a::before{display:none}
  .sub{display:block;position:static;box-shadow:none;border:0;background:transparent;padding:0 0 6px 14px;min-width:0}
  .sub a{padding:9px 0;color:#9fb0cf}
  .sub a small{display:none}
  nav ul>li:last-child{padding-top:10px}
}
@media (max-width:720px){
  section{padding:60px 0}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .cta{padding:36px 24px}
  .hero{padding:14px 0}
}