:root{--ink:#0b0d12;--blue:#3D5AFE;--blue2:#7C90FF;--gray:#8a8f9c;--line:rgba(11,13,18,.09);--ivory:#F6F7FB;}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:'Inter Tight','Pretendard',sans-serif;background:#fff;color:var(--ink);word-break:keep-all;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.w{max-width:1360px;margin:0 auto;padding:0 32px;}
section{position:relative;}

/* 내비 */
nav{position:fixed;top:0;left:0;right:0;z-index:90;transition:background .35s,box-shadow .35s;}
nav .in{padding:22px 36px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
nav.solid{background:rgba(255,255,255,.92);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line);}
.logo{font-weight:800;font-size:15.5px;display:flex;align-items:center;gap:8px;}
.logo i{width:9px;height:9px;border-radius:99px;background:var(--blue);}
.gnb{display:flex;gap:30px;font-size:13.5px;font-weight:600;}
.gnb a{opacity:.62;transition:opacity .2s;position:relative;padding-bottom:4px;}
.gnb a::after{content:'';position:absolute;left:0;right:0;bottom:0;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform .38s cubic-bezier(.22,.7,.25,1);}
.gnb a:hover,.gnb a.on{opacity:1;}
.gnb a:hover::after,.gnb a.on::after{transform:scaleX(1);transform-origin:left;}
nav .cta{font-size:13.5px;font-weight:700;display:inline-flex;align-items:center;gap:8px;}
nav .cta em{font-style:normal;transition:transform .25s;}
nav .cta:hover em{transform:translateX(4px);}
.mnav{display:none;background:none;border:0;font-size:20px;cursor:pointer;}

/* 페이지 히어로 */
.ph{padding:clamp(150px,15vw,230px) 0 clamp(60px,7vw,110px);background:var(--ivory);position:relative;overflow:hidden;}
.ph::after{content:'';position:absolute;width:44vw;height:44vw;border-radius:50%;right:-12vw;top:-16vw;
  background:radial-gradient(circle,rgba(61,90,254,.13),transparent 66%);filter:blur(70px);}
.ph .w{position:relative;z-index:2;}
.ph .eyebrow{font-size:12px;letter-spacing:2.6px;font-weight:700;color:var(--blue);margin-bottom:16px;}
.ph h1{font-size:clamp(30px,3.5vw,60px);font-weight:800;letter-spacing:-.03em;line-height:1.18;}
.ph p{margin-top:18px;font-size:clamp(14px,1.15vw,18px);color:var(--gray);line-height:1.8;max-width:640px;}

/* 공통 섹션 */
.sec{padding:clamp(64px,7.5vw,130px) 0;}
.sec.ivory{background:var(--ivory);}
.sec.dark{background:var(--ink);color:#fff;}
.lb{font-size:12px;letter-spacing:2.4px;font-weight:700;color:var(--gray);margin-bottom:14px;}
.sec.dark .lb{color:var(--blue2);}
.h2{font-size:clamp(24px,2.7vw,44px);font-weight:800;letter-spacing:-.025em;line-height:1.32;}
.lead{margin-top:16px;font-size:clamp(14px,1.1vw,17px);color:var(--gray);line-height:1.85;max-width:680px;}
.sec.dark .lead{color:rgba(255,255,255,.6);}

/* 리빌 */
.rv{opacity:0;transform:translateY(22px);transition:opacity .8s ease,transform .8s cubic-bezier(.22,.7,.25,1);transition-delay:var(--d,0s);}
.rv.on{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){.rv{transition:none;opacity:1;transform:none;}}

/* 카드/그리드 */
.grid{display:grid;gap:clamp(20px,2vw,34px);}
.g2{grid-template-columns:repeat(2,1fr);}
.g3{grid-template-columns:repeat(3,1fr);}
.g4{grid-template-columns:repeat(4,1fr);}
.card{border:1px solid var(--line);border-radius:12px;padding:clamp(24px,2.4vw,40px);background:#fff;transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s;}
.card:hover{transform:translateY(-5px);box-shadow:0 24px 50px rgba(11,13,18,.09);}
.card h4{font-size:clamp(16px,1.35vw,21px);font-weight:800;letter-spacing:-.02em;}
.card .en{font-size:11.5px;letter-spacing:1.6px;color:var(--blue);font-weight:700;margin-bottom:10px;}
.card p{margin-top:12px;font-size:14px;line-height:1.75;color:var(--gray);}
.card ul{margin-top:14px;list-style:none;display:flex;flex-direction:column;gap:7px;}
.card li{font-size:13.5px;color:#4b5160;padding-left:13px;position:relative;}
.card li::before{content:'';position:absolute;left:0;top:8px;width:4px;height:4px;border-radius:99px;background:var(--blue);}
.sec.dark .card{background:rgba(255,255,255,.03);border-color:rgba(255,255,255,.1);}
.sec.dark .card p{color:rgba(255,255,255,.55);}
.sec.dark .card li{color:rgba(255,255,255,.72);}

/* 버튼 */
.btn{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:700;border-radius:99px;padding:14px 26px;background:var(--ink);color:#fff;transition:.25s;}
.btn:hover{background:var(--blue);}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn.ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn em{font-style:normal;transition:transform .25s;}
.btn:hover em{transform:translateX(4px);}

/* CTA 듀오 */
.duo{display:grid;grid-template-columns:1fr 1fr;}
.duo>div{padding:clamp(60px,7vw,120px) clamp(32px,4.5vw,80px);}
.duo .l{border-right:1px solid var(--line);}
.duo h3{font-size:clamp(22px,2.3vw,38px);font-weight:800;letter-spacing:-.025em;}
.duo p{margin-top:14px;color:var(--gray);font-size:14.5px;line-height:1.8;}
.duo a{margin-top:26px;display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:14.5px;color:var(--blue);}

/* 푸터 */
footer{background:var(--ink);color:#fff;padding:clamp(52px,5vw,86px) 0 40px;}
footer .grid{grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:36px;}
footer .tag{margin-top:14px;font-size:13px;color:rgba(255,255,255,.45);line-height:1.75;}
footer h5{font-size:11.5px;letter-spacing:1.8px;color:var(--blue2);font-weight:700;margin-bottom:14px;}
footer ul{list-style:none;display:flex;flex-direction:column;gap:9px;}
footer li a{font-size:13.5px;color:rgba(255,255,255,.62);transition:.2s;}
footer li a:hover{color:#fff;}
footer .base{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;font-size:12px;color:rgba(255,255,255,.35);}

@media(max-width:960px){
  .gnb{display:none;}
  .mnav{display:block;}
  nav.open .gnb{display:flex;position:fixed;inset:0 0 0 auto;width:min(78%,290px);flex-direction:column;background:#fff;
    padding:86px 24px;gap:0;box-shadow:-8px 0 40px rgba(0,0,0,.16);z-index:95;}
  nav.open .gnb a{font-size:17px;font-weight:700;padding:16px 0;border-bottom:1px solid #f0f0f0;opacity:1;}
  .g4,.g3,.g2{grid-template-columns:1fr;}
  .duo{grid-template-columns:1fr;}
  .duo .l{border-right:0;border-bottom:1px solid var(--line);}
  footer .grid{grid-template-columns:1fr 1fr;}
  footer .base{flex-direction:column;gap:8px;}
}
@media(max-width:480px){ .w{padding:0 20px;} nav .in{padding:18px 20px;} footer .grid{grid-template-columns:1fr;} }