:root{
  --bg:#F6F8FC; --surface:#FFFFFF; --ink:#0E1A33; --ink2:#46526B; --muted:#7A859C; --line:#E3E8F2;
  --blue:#1A5FE0; --blue-d:#1249B3; --blue-50:#EAF1FE; --teal:#0EA5A4; --amber:#F59E0B; --amber-50:#FEF4E2;
  --navy:#0B1B3A; --r:20px; --shadow:0 1px 2px rgba(14,26,51,.04),0 8px 24px rgba(14,26,51,.06);
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:Pretendard,"Pretendard Variable","Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;word-break:keep-all}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:999px;font-weight:700;font-size:15px;transition:.2s}
.btn-primary{background:var(--blue);color:#fff}.btn-primary:hover{background:var(--blue-d)}
.btn-ghost{background:var(--surface);border:1px solid var(--line);color:var(--ink)}.btn-ghost:hover{border-color:var(--blue);color:var(--blue)}
.eyebrow{font-size:13px;font-weight:700;color:var(--blue);letter-spacing:.04em}
.h2{font-size:clamp(26px,3.2vw,38px);line-height:1.25;font-weight:800;letter-spacing:-.02em;margin:10px 0 12px}
.lead{color:var(--ink2);font-size:17px}
section{padding:96px 0}
.sec-head{max-width:640px;margin-bottom:44px}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(246,248,252,.86);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid transparent;transition:.2s}
.top.scrolled{border-bottom-color:var(--line)}
.top .wrap{display:flex;align-items:center;height:68px;gap:28px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{width:38px;height:38px;object-fit:contain}
.brand b{display:block;font-size:17px;line-height:1.1}
.brand small{display:block;font-size:10px;letter-spacing:.18em;color:var(--muted);font-weight:600}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{padding:8px 14px;border-radius:999px;font-weight:600;font-size:15px;color:var(--ink2)}
.nav a:hover{background:var(--blue-50);color:var(--blue)}
.nav .ext::after{content:" ↗";font-size:12px}
.top .btn{height:40px;padding:0 18px;font-size:14px}
.menu-btn{display:none;margin-left:auto;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);font-size:20px}
.notice{background:var(--navy);color:#DCE6FF;font-size:14px;text-align:center;padding:10px 16px}
.notice b{color:#fff}.notice a{color:#7CC4FF;font-weight:700;margin-left:6px}

/* hero */
.hero{padding:72px 0 64px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,4.6vw,56px);line-height:1.18;font-weight:800;letter-spacing:-.03em;margin:14px 0 18px}
.hero h1 em{font-style:normal;color:var(--blue)}
.hero .lead{max-width:520px}
.hero .cta{display:flex;gap:10px;margin-top:30px;flex-wrap:wrap}
.facts{display:flex;gap:28px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.facts div b{display:block;font-size:24px;font-weight:800}
.facts div span{font-size:13px;color:var(--muted)}
.stage{position:relative;height:460px}
.stage .tab{position:absolute;right:0;top:20px;width:92%;border-radius:22px;overflow:hidden;box-shadow:0 30px 60px rgba(11,27,58,.25);border:6px solid #0B1220;background:#0B1220}
.stage .phone{position:absolute;left:0;bottom:0;width:38%;border-radius:30px;overflow:hidden;border:7px solid #fff;box-shadow:0 24px 50px rgba(11,27,58,.22);background:#fff}
.stage .tag{position:absolute;font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px;background:var(--surface);box-shadow:var(--shadow)}
.stage .tag.t1{right:12px;bottom:70px}.stage .tag.t2{left:22%;top:0}

/* services */
.svc{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.svc .card{display:grid;grid-template-columns:1fr 170px;gap:24px;padding:32px;overflow:hidden;position:relative}
.svc .card.dc{grid-template-columns:1fr}
.badge{display:inline-block;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;background:var(--blue-50);color:var(--blue)}
.badge.amber{background:var(--amber-50);color:#B45309}
.svc h3{font-size:28px;font-weight:800;margin:12px 0 8px;letter-spacing:-.02em}
.svc p{color:var(--ink2)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 22px}
.chips span{font-size:13px;font-weight:600;padding:6px 12px;border-radius:10px;background:var(--bg);border:1px solid var(--line)}
.chips span b{color:var(--blue)}
.svc .shot{border-radius:18px;overflow:hidden;align-self:end;margin-bottom:-32px;box-shadow:0 -6px 20px rgba(11,27,58,.08)}
.svc .dc .shot{margin:22px 0 -32px;border-radius:14px 14px 0 0}
.links{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.links a.more{font-weight:700;color:var(--blue)}
.links a.more::after{content:" →"}

/* what we do */
.do{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.do .card{padding:26px}
.ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--blue-50);color:var(--blue);margin-bottom:16px}
.ic svg{width:22px;height:22px}
.do h4{font-size:18px;margin-bottom:6px}
.do p{color:var(--ink2);font-size:15px}

/* projects */
.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pj{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.pj .card{padding:22px;box-shadow:none;background:var(--bg)}
.pj .st{font-size:12px;font-weight:700;color:var(--teal)}
.pj .st.plan{color:var(--muted)}
.pj h4{font-size:17px;margin:8px 0 6px}
.pj p{font-size:14px;color:var(--ink2)}

/* process */
.steps{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;counter-reset:s}
.steps div{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 14px}
.steps div::before{counter-increment:s;content:"0" counter(s);display:block;font-weight:800;color:var(--blue);font-size:14px;margin-bottom:6px}
.steps b{display:block;font-size:15px}
.steps span{font-size:13px;color:var(--muted)}

/* blog + timeline */
.two{display:grid;grid-template-columns:1.3fr 1fr;gap:28px}
.posts{display:grid;gap:12px}
.post{display:flex;gap:16px;padding:18px 20px;align-items:center}
.post .d{font-size:13px;color:var(--muted);white-space:nowrap}
.post b{font-size:16px;flex:1}
.post:hover b{color:var(--blue)}
.tl{padding:28px}
.tl li{list-style:none;position:relative;padding:0 0 22px 22px;border-left:2px solid var(--line);margin-left:6px}
.tl li:last-child{padding-bottom:0}
.tl li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--blue)}
.tl b{display:block;font-size:14px;color:var(--blue)}
.tl ul{padding:0}

/* cta + footer */
.cta-band{background:var(--navy);color:#fff;border-radius:28px;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h3{font-size:clamp(24px,3vw,34px);font-weight:800;letter-spacing:-.02em}
.cta-band p{color:#B9C6E4}
footer{padding:56px 0 40px;color:var(--muted);font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer nav{display:flex;gap:18px;flex-wrap:wrap}
footer a:hover{color:var(--ink)}

/* mobile */
@media (max-width:960px){
  .nav,.top .btn{display:none}.menu-btn{display:block}
  .nav.open{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:var(--surface);padding:12px 16px 18px;border-bottom:1px solid var(--line)}
  .hero .wrap,.svc,.two{grid-template-columns:1fr}
  .stage{height:360px;margin-top:8px}
  .do{grid-template-columns:1fr 1fr}.pj{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:repeat(4,1fr)}
  section{padding:72px 0}
}
@media (max-width:600px){
  .wrap{padding:0 16px}
  .hero{padding:44px 0 40px}
  .facts{gap:18px}.facts div b{font-size:20px}
  .stage{height:290px}
  .svc .card{grid-template-columns:1fr;padding:24px}
  .svc .card .shot.ph{max-width:190px;margin:4px auto -24px}
  .do,.pj{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:36px 24px}
  .post{flex-direction:column;align-items:flex-start;gap:4px}
}

/* ===== 하위 페이지 공통 ===== */
.nav a.on{background:var(--blue-50);color:var(--blue)}
.page-hero{padding:56px 0 40px}
.crumb{font-size:13px;color:var(--muted);display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}
.crumb a:hover{color:var(--blue)}
.page-hero h1{font-size:clamp(30px,4vw,46px);line-height:1.22;font-weight:800;letter-spacing:-.03em;margin:12px 0 14px}
.page-hero .lead{max-width:720px}
.page-hero .cta{display:flex;gap:10px;margin-top:26px;flex-wrap:wrap}
.lang{float:right;font-size:14px;font-weight:700;color:var(--blue)}
.sec{padding:56px 0}
.sec.tight{padding-top:8px}
.sec h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.02em;margin:8px 0 12px;line-height:1.3}
.sec h3{font-size:19px;font-weight:800;margin:32px 0 12px}
.sec > .wrap > p,.sec .p{color:var(--ink2);max-width:760px;margin-bottom:14px}
.toc{position:sticky;top:68px;z-index:10;background:rgba(246,248,252,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.toc .wrap{display:flex;gap:6px;overflow-x:auto;padding-top:10px;padding-bottom:10px;scrollbar-width:none}
.toc a{white-space:nowrap;font-size:14px;font-weight:600;color:var(--ink2);padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface)}
.toc a:hover{border-color:var(--blue);color:var(--blue)}
[id]{scroll-margin-top:130px}

.g2,.g3,.g4{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}
.box{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px}
.box b{display:block;font-size:16px;margin-bottom:4px}
.box span,.box p{color:var(--ink2);font-size:15px}
.box .num{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--blue-50);color:var(--blue);font-weight:800;font-size:14px;margin-bottom:10px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px}
.stat b{display:block;font-size:30px;font-weight:800;color:var(--blue);letter-spacing:-.02em}
.stat span{color:var(--ink2);font-size:14px}

.note{background:var(--amber-50);border:1px solid #F8D9A0;border-radius:14px;padding:16px 18px;color:#7A4A06;font-size:15px;margin:18px 0;max-width:820px}
.note.blue{background:var(--blue-50);border-color:#C9DBFB;color:#1B3F86}
.tag-concept{font-size:12px;color:var(--muted);margin-top:8px}

.video{position:relative;aspect-ratio:16/9;border-radius:16px;overflow:hidden;background:#0B1220;box-shadow:var(--shadow);max-width:860px}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.vlabel{font-size:14px;color:var(--muted);margin:8px 0 22px}

.figs{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.fig{background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.fig img{width:100%;background:#0B1220}
.fig .cap{padding:16px 18px}
.fig .cap b{display:block;margin-bottom:4px}
.fig .cap span{color:var(--ink2);font-size:15px}
.figs.phones{grid-template-columns:repeat(4,1fr)}
.figs.phones .fig.tall img{max-height:420px;object-fit:contain}
.figs.one{grid-template-columns:1fr;max-width:900px}

.log{list-style:none;padding:0;max-width:820px}
.log li{position:relative;padding:0 0 26px 26px;border-left:2px solid var(--line);margin-left:6px}
.log li:last-child{padding-bottom:0}
.log li::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--blue)}
.log em{font-style:normal;font-size:13px;font-weight:700;color:var(--blue);display:block}
.log b{display:block;font-size:17px;margin:2px 0 4px}
.log span{color:var(--ink2);font-size:15px}
.log li.next::before{background:var(--surface);border:2px solid var(--blue)}

.tbl{width:100%;max-width:900px;border-collapse:separate;border-spacing:0;background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:15px}
.tbl th,.tbl td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{background:var(--bg);font-size:13px;color:var(--muted);font-weight:700}
.tbl tr:last-child td{border-bottom:0}
.tbl td:first-child{font-weight:700;white-space:nowrap}
.tbl-wrap{overflow-x:auto}

.steps-v{list-style:none;padding:0;display:grid;gap:12px;max-width:820px;counter-reset:n}
.steps-v li{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 20px 18px 64px;position:relative}
.steps-v li::before{counter-increment:n;content:counter(n);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:grid;place-items:center;font-size:14px}
.steps-v b{display:block;margin-bottom:2px}
.steps-v span{color:var(--ink2);font-size:15px}

.checks{list-style:none;padding:0;display:grid;gap:8px;max-width:820px}
.checks li{padding-left:26px;position:relative;color:var(--ink2)}
.checks li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:800}

.faq{max-width:820px;display:grid;gap:10px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 20px}
.faq summary{font-weight:700;cursor:pointer;list-style:none}
.faq summary::after{content:"+";float:right;color:var(--blue);font-weight:800}
.faq details[open] summary::after{content:"−"}
.faq p{color:var(--ink2);margin-top:8px}

.vgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.vcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;text-align:left;padding:0;cursor:pointer;font:inherit;color:inherit}
.vcard .th{position:relative;aspect-ratio:16/9;background:#0B1220}
.vcard .th img,.vcard .th iframe{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border:0}
.vcard .th::after{content:"▶";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:54px;height:54px;border-radius:50%;background:rgba(11,27,58,.75);color:#fff;display:grid;place-items:center;font-size:18px;padding-left:4px}
.vcard.playing .th::after{display:none}
.vcard .tx{padding:14px 16px}
.vcard .k{font-size:12px;font-weight:700;color:var(--blue)}
.vcard b{display:block;font-size:16px;margin:2px 0}
.vcard span{font-size:14px;color:var(--muted)}
.vhead{display:flex;justify-content:space-between;align-items:end;gap:12px;margin:48px 0 18px;flex-wrap:wrap}
.vhead:first-child{margin-top:0}
.vhead h2{margin:0}
.vhead p{color:var(--muted);font-size:15px}

.pcards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.pcard:hover{border-color:var(--blue);transform:translateY(-2px)}
.pcard .im{aspect-ratio:16/10;background:#0B1220 center/cover no-repeat;position:relative}
.pcard .im small{position:absolute;left:10px;bottom:10px;font-size:11px;background:rgba(0,0,0,.55);color:#fff;padding:3px 8px;border-radius:6px}
.pcard .tx{padding:20px;flex:1;display:flex;flex-direction:column}
.pcard .st{font-size:12px;font-weight:700;color:var(--teal)}
.pcard .st.plan{color:var(--muted)}.pcard .st.int{color:#7C3AED}
.pcard h3{font-size:19px;margin:6px 0}
.pcard p{color:var(--ink2);font-size:15px;flex:1}
.pcard .go{margin-top:14px;font-weight:700;color:var(--blue);font-size:14px}

.contact-ways{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.form{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:30px;max-width:760px;display:grid;gap:16px}
.form label{display:grid;gap:6px;font-weight:700;font-size:14px}
.form input,.form select,.form textarea{font:inherit;font-weight:400;font-size:16px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--blue);border-color:transparent}
.form textarea{min-height:150px;resize:vertical}
.form .agree{display:flex;gap:8px;align-items:center;font-weight:500}
.form .agree input{width:18px;height:18px}
.form .hint{font-size:13px;color:var(--muted)}
.form .err{color:#B91C1C;font-size:14px;min-height:1em}

.legal{max-width:860px}
.legal h2{font-size:22px;margin:36px 0 10px}
.legal h3{font-size:18px;margin:28px 0 8px}
.legal p,.legal li{color:var(--ink2)}
.legal ul{padding-left:20px;display:grid;gap:6px}
.legal hr{border:0;border-top:1px solid var(--line);margin:48px 0}

.band{padding:24px 0 96px}

@media (max-width:960px){
  .g3,.g4,.pcards,.vgrid,.contact-ways{grid-template-columns:1fr 1fr}
  .figs.phones{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .page-hero{padding:36px 0 28px}
  .sec{padding:40px 0}
  .g2,.g3,.g4,.pcards,.vgrid,.figs,.contact-ways{grid-template-columns:1fr}
  .figs.phones{grid-template-columns:1fr 1fr}
  .form{padding:20px}
  .tbl{font-size:14px}.tbl td:first-child{white-space:normal}
  .band{padding-bottom:64px}
}