:root{
  --paper:#F4F3EE; --paper-2:#ECEAE2; --surface:#FFFFFF; --mist:#E1E7EE; --mist-soft:#EDF1F4;
  --ink:#1F1D19; --ink-soft:#4A453C; --muted:#6B665D; --muted-2:#7E796F;
  --line:#DDD8CC; --line-soft:#E6E2D8; --blue:#2C5C9E; --blue-ink:#234A80; --blue-soft:#DCE5F0; --blue-line:#B8C9DE;
  --deep:#1B3450; --on-deep:#EEF2F4; --on-deep-soft:#A9BACB; --amber:#9A6A2A;
  --btn:#1B3450; --on-btn:#F4F3EE; --dark:#1F1D19; --on-dark:#F4F3EE;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#141412; --paper-2:#1A1A17; --surface:#1F1F1B; --mist:#1C2530; --mist-soft:#1A222B;
    --ink:#ECEAE3; --ink-soft:#C6C2B8; --muted:#948F85; --muted-2:#7F7A70;
    --line:#33322D; --line-soft:#2A2926; --blue:#8FB4E4; --blue-ink:#A6C4EC; --blue-soft:#1E2F45; --blue-line:#34506F;
    --deep:#0F1E30; --on-deep:#EEF2F4; --on-deep-soft:#9DB0C4; --amber:#D9A65C;
    --btn:#ECEAE3; --on-btn:#141412; --dark:#ECEAE3; --on-dark:#141412;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);word-break:keep-all;font-family:'IBM Plex Sans KR','Pretendard','Apple SD Gothic Neo','Malgun Gothic',sans-serif;font-size:16px;line-height:1.75;-webkit-text-size-adjust:100%}
h1,h2,h3,.serif{font-family:'Gowun Batang','Noto Serif KR',serif;margin:0;letter-spacing:-0.01em;text-wrap:balance;font-weight:700}
h1{font-size:clamp(2.2rem,5.4vw,3.9rem);line-height:1.2}
h2{font-size:clamp(1.6rem,3.4vw,2.4rem);line-height:1.28}
h3{font-size:1.2rem;line-height:1.4}
p{margin:0}
a{color:inherit}
.mono{font-family:'IBM Plex Mono',ui-monospace,monospace}
.wrap{width:min(1140px,100%);margin-inline:auto;padding:0 clamp(1.1rem,4vw,2.4rem)}
.u{background:linear-gradient(transparent 66%,var(--blue-soft) 66%)}
.bl{color:var(--blue)}
.eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.14em;color:var(--blue);text-transform:uppercase;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace;display:flex;align-items:center;gap:.6rem}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--blue)}
.lede{font-size:clamp(1.02rem,1.6vw,1.2rem);color:var(--ink-soft);max-width:50ch}
.small{font-size:.88rem;color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 1.4rem;border-radius:8px;font-weight:600;text-decoration:none;font-size:.97rem;border:1px solid transparent;transition:transform .15s ease,box-shadow .15s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--btn);color:var(--on-btn)}
.btn.dark{background:var(--dark);color:var(--on-dark)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--paper) 86%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line-soft)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:1rem}
.logo{font-family:'Gowun Batang',serif;font-size:1.3rem;font-weight:700;text-decoration:none;display:flex;align-items:center;gap:.6rem}
.logo i{display:inline-block;width:10px;height:10px;border-radius:3px;background:var(--blue);transform:translateY(-2px)}
.logo small{font-family:'IBM Plex Mono',monospace;font-size:.68rem;color:var(--muted);letter-spacing:.08em;font-weight:400}
.links{display:flex;gap:1.4rem;align-items:center}
.links a{text-decoration:none;font-size:.93rem;color:var(--ink-soft);font-weight:500}
.links a.cta{background:var(--btn);color:var(--on-btn);padding:.55rem 1rem;border-radius:7px;font-weight:600}
@media(max-width:900px){.links a:not(.cta){display:none}}
section{padding:clamp(3.4rem,8vh,6rem) 0}
section.alt{background:var(--paper-2)}
section.mist{background:var(--mist-soft)}
.head{display:flex;flex-direction:column;gap:.8rem;margin-bottom:2.3rem;max-width:66ch}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.2rem}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.2rem}
.grid4{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.6rem 1.5rem;display:flex;flex-direction:column;gap:.7rem}
.card .tag{font-size:.74rem;letter-spacing:.1em;color:var(--blue);font-weight:700;text-transform:uppercase;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace}
.card h3{font-size:1.25rem}
.card p{color:var(--ink-soft);font-size:.95rem}
.card ul{margin:.1rem 0 0;padding-left:1.1rem;color:var(--ink-soft);font-size:.92rem;display:flex;flex-direction:column;gap:.28rem}
.card .foot{margin-top:auto;padding-top:.8rem;border-top:1px dashed var(--line);font-size:.84rem;color:var(--muted)}
.pill{display:inline-block;padding:.15rem .6rem;border-radius:999px;font-size:.7rem;font-weight:700;letter-spacing:.04em;vertical-align:middle}
.pill.live{background:var(--blue-soft);color:var(--blue-ink)}
.pill.pilot{background:var(--paper-2);color:var(--muted);border:1px solid var(--line)}
.pill.free{background:transparent;color:var(--blue);border:1px solid var(--blue-line)}
.pill.new{background:var(--amber);color:#fff}
/* hero */
.hero{padding:clamp(3.5rem,9vh,6.5rem) 0 clamp(3rem,7vh,5rem);background:radial-gradient(900px 420px at 85% 0%,var(--mist-soft),transparent 70%)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:3rem;align-items:center}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr}}
.hero .txt{display:flex;flex-direction:column;gap:1.5rem;align-items:flex-start}
.hero h1{max-width:18ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:.7rem}
.trust{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;font-size:.86rem;color:var(--muted)}
.trust b{color:var(--ink-soft);font-weight:600}
/* chat mock */
.chat{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:0 12px 32px rgba(31,29,25,.08);overflow:hidden;font-size:.9rem}
.chat .bar{display:flex;align-items:center;gap:.6rem;padding:.8rem 1rem;border-bottom:1px solid var(--line-soft);background:var(--paper-2)}
.chat .bar i{width:10px;height:10px;border-radius:50%;background:var(--line);display:inline-block}
.chat .bar span{font-size:.8rem;color:var(--muted);margin-left:.4rem;font-weight:600}
.chat .body{padding:1rem;display:flex;flex-direction:column;gap:.7rem}
.msg{max-width:88%;padding:.65rem .9rem;border-radius:14px;line-height:1.55}
.msg.me{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:4px}
.msg.bot{align-self:flex-start;background:var(--paper-2);border-bottom-left-radius:4px}
.msg.bot b{display:block;font-size:.75rem;color:var(--blue);margin-bottom:.2rem}
.msg table{border-collapse:collapse;font-size:.8rem;margin-top:.3rem;min-width:0}
.msg td{padding:.15rem .5rem;border-bottom:1px solid var(--line-soft)}
.msg td:last-child{text-align:right;font-family:'IBM Plex Mono',monospace}
/* scenarios */
.scen{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:1rem}
.scen .s{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.4rem 1.4rem;display:flex;flex-direction:column;gap:.5rem}
.scen .before{font-size:.85rem;color:var(--muted);text-decoration:line-through;text-decoration-color:var(--muted-2)}
.scen .after{font-size:1.08rem;font-weight:700;line-height:1.45}
.scen .s::before{content:"\2192";color:var(--blue);font-weight:800;font-size:1.2rem}
/* service list */
.svc{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.svc .it{background:var(--surface);padding:1.35rem 1.3rem;display:flex;flex-direction:column;gap:.35rem}
.svc .it:hover{background:var(--mist-soft)}
.svc .it .n{font-size:.72rem;color:var(--blue);font-weight:700;letter-spacing:.08em;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace}
.svc .it b{font-size:1.05rem}
.svc .it p{font-size:.88rem;color:var(--ink-soft)}
.svc .it .ex{font-size:.8rem;color:var(--muted);margin-top:.3rem}
/* AX tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.1rem}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.5rem 1.5rem;display:flex;flex-direction:column;gap:.55rem;text-decoration:none;transition:transform .15s ease,border-color .15s ease;position:relative}
.tile:hover{transform:translateY(-3px);border-color:var(--blue-line)}
.tile.hi{border-color:var(--blue-line);background:linear-gradient(180deg,var(--mist-soft),var(--surface))}
.tile .cat{font-size:.72rem;letter-spacing:.1em;color:var(--blue);font-weight:700;display:flex;justify-content:space-between;align-items:center;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace}
.tile h3{font-size:1.3rem}
.tile p{color:var(--ink-soft);font-size:.94rem}
.tile ul{margin:.2rem 0 0;padding-left:1.1rem;color:var(--ink-soft);font-size:.88rem;display:flex;flex-direction:column;gap:.25rem}
.tile .who{font-size:.85rem;color:var(--blue);font-weight:600;margin-top:auto;padding-top:.6rem;border-top:1px dashed var(--line)}
/* compare table */
.tblwrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:640px;font-size:.93rem}
th,td{padding:.95rem 1.1rem;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
thead th{font-size:.76rem;letter-spacing:.08em;color:var(--blue);font-weight:700;text-transform:uppercase;background:var(--mist-soft);font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace}
tbody tr:last-child td{border-bottom:0}
td.us{background:color-mix(in srgb,var(--blue-soft) 45%,transparent);font-weight:600}
td.them{color:var(--muted)}
/* flow */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;counter-reset:s}
.step{background:var(--surface);padding:1.4rem 1.2rem;display:flex;flex-direction:column;gap:.45rem}
.step::before{counter-increment:s;content:"0" counter(s);font-family:'IBM Plex Mono',monospace;font-size:.75rem;color:var(--blue);font-weight:700;letter-spacing:.1em}
.step b{font-family:'Gowun Batang',serif;font-size:1.05rem}
.step p{font-size:.88rem;color:var(--ink-soft)}
.step.stop{background:var(--blue-soft)}
/* stats */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.stat{background:var(--surface);padding:1.4rem 1.3rem;display:flex;flex-direction:column;gap:.2rem;border-top:3px solid var(--blue)}
.stat .v{font-family:'Gowun Batang',serif;font-size:1.9rem;font-weight:700;line-height:1.1;color:var(--blue-ink)}
.stat .k{font-weight:600;font-size:.9rem;color:var(--ink-soft)}
.stat .n{font-size:.8rem;color:var(--muted)}
/* diag */
.diag{background:var(--deep);color:var(--on-deep);border-radius:16px;padding:clamp(2rem,5vw,3.4rem);display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center}
@media(max-width:820px){.diag{grid-template-columns:1fr}}
.diag h2{color:var(--on-deep)}
.diag p{color:var(--on-deep-soft);max-width:52ch}
.diag .eyebrow{color:#9CC3F8}.diag .eyebrow::before{background:#9CC3F8}
.diag ul{margin:0;padding-left:1.1rem;color:var(--on-deep);display:flex;flex-direction:column;gap:.5rem;font-size:.95rem}
.diag .btn.primary{background:#fff;color:var(--deep)}
/* profile */
.profile{display:grid;grid-template-columns:.9fr 1.1fr;gap:2.5rem;align-items:start}
@media(max-width:860px){.profile{grid-template-columns:1fr}}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:2rem;display:flex;flex-direction:column;gap:1rem}
.avatar{width:72px;height:72px;border-radius:50%;background:var(--blue-soft);display:grid;place-items:center;font-family:'Gowun Batang',serif;font-weight:700;font-size:1.6rem;color:var(--blue-ink)}
.pcard .name{font-family:'Gowun Batang',serif;font-size:1.5rem;font-weight:700}
.pcard .role{color:var(--blue);font-weight:600;font-size:.95rem}
.pcard dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:.35rem 1rem;font-size:.9rem}
.pcard dt{color:var(--muted)}
.pcard dd{margin:0;color:var(--ink-soft)}
.timeline{display:flex;flex-direction:column;gap:0;border-left:2px solid var(--blue-line);padding-left:1.4rem;margin-top:.5rem}
.timeline .t{position:relative;padding:.55rem 0}
.timeline .t::before{content:"";position:absolute;left:calc(-1.4rem - 6px);top:1.05rem;width:10px;height:10px;border-radius:50%;background:var(--blue);border:2px solid var(--paper)}
.timeline .t b{display:block;font-size:.98rem}
.timeline .t span{font-size:.85rem;color:var(--muted)}
blockquote{margin:0;padding:1.4rem 1.6rem;border-left:4px solid var(--blue);background:var(--mist-soft);border-radius:0 14px 14px 0;font-size:1.05rem;line-height:1.6}
blockquote cite{display:block;font-style:normal;font-size:.82rem;color:var(--muted);margin-top:.5rem}
/* faq */
details{border-bottom:1px solid var(--line);padding:1rem 0}
details summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:1rem;font-size:1.02rem}
details summary::after{content:"+";color:var(--blue);font-weight:800}
details[open] summary::after{content:"\2013"}
details p{margin-top:.6rem;color:var(--ink-soft);font-size:.95rem}
/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start}
@media(max-width:820px){.contact{grid-template-columns:1fr}}
.cbox{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.6rem}
.cbox .row{display:flex;justify-content:space-between;gap:1rem;padding:.6rem 0;border-bottom:1px dashed var(--line-soft);font-size:.95rem}
.cbox .row:last-child{border-bottom:0}
.cbox .row span{color:var(--muted)}
.cbox .row a{font-weight:600;text-decoration:none;color:var(--blue-ink)}
form{display:flex;flex-direction:column;gap:.7rem}
input,textarea,select{font:inherit;padding:.75rem .9rem;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);width:100%}
textarea{min-height:110px;resize:vertical}
/* footer */
footer{padding:3rem 0 2.5rem;border-top:1px solid var(--line);font-size:.86rem;color:var(--muted)}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
@media(max-width:760px){footer .cols{grid-template-columns:1fr}}
footer b{color:var(--ink);font-size:1rem;display:block;margin-bottom:.5rem}
footer a{text-decoration:none;display:block;margin:.25rem 0}
footer .legal{border-top:1px solid var(--line-soft);padding-top:1.2rem;font-size:.8rem;line-height:1.7}
.fab{position:fixed;right:1.2rem;bottom:1.2rem;background:var(--btn);color:var(--on-btn);padding:.8rem 1.1rem;border-radius:999px;font-weight:600;text-decoration:none;box-shadow:0 10px 24px rgba(31,29,25,.2);font-size:.9rem;z-index:9}
/* v2: 본업 중심 */
.cases{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.1rem}
.case{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1.4rem 1.4rem;display:flex;flex-direction:column;gap:.55rem}
.case .k{font-size:.72rem;letter-spacing:.1em;color:var(--blue);font-weight:700;font-family:'IBM Plex Mono','IBM Plex Sans KR',monospace}
.case b{font-size:1.05rem;line-height:1.4}
.case .r{display:grid;grid-template-columns:auto 1fr;gap:.2rem .7rem;font-size:.9rem;color:var(--ink-soft)}
.case .r span{color:var(--muted);font-size:.8rem;white-space:nowrap;padding-top:.1rem}
.case .res{font-weight:700;color:var(--blue-ink)}
.creds{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.cred{background:var(--surface);padding:1.2rem 1.1rem;display:flex;flex-direction:column;gap:.15rem}
.cred .v{font-family:'Gowun Batang',serif;font-size:1.7rem;font-weight:700;color:var(--blue-ink);line-height:1.1}
.cred .k{font-size:.85rem;color:var(--ink-soft);font-weight:600}
.cred .n{font-size:.78rem;color:var(--muted)}
.support{background:var(--mist-soft);border:1px solid var(--blue-line);border-radius:14px;padding:1.6rem 1.6rem}
.support ul{margin:.6rem 0 0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:.6rem 1.2rem}
.support li{font-size:.92rem;color:var(--ink-soft);padding-left:1.2rem;position:relative}
.support li::before{content:"\2713";position:absolute;left:0;color:var(--blue);font-weight:800}
.hero .side{background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:0 12px 32px rgba(31,29,25,.08);padding:1.6rem}
.hero .side h3{font-size:1rem;color:var(--blue);margin-bottom:.6rem}
.hero .side dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:.45rem 1rem;font-size:.9rem}
.hero .side dt{color:var(--muted);white-space:nowrap}.hero .side dd{margin:0;color:var(--ink-soft)}
.fee th,.fee td{font-size:.9rem}