:root{--bg:#070c18;--panel:#0d1830;--accent:#3a6df0;--accent-hi:#6fb7ff;--ink:#fff;--mut:rgba(255,255,255,.66);--line:rgba(255,255,255,.1);--glass:rgba(255,255,255,.045);--wash:rgba(58,109,240,.15);--r:24px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Pretendard,-apple-system,"Apple SD Gothic Neo",sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;word-break:keep-all;
background-image:radial-gradient(900px 500px at 80% -10%,rgba(58,109,240,.35),transparent 60%),radial-gradient(700px 500px at -10% 40%,rgba(111,183,255,.12),transparent 60%)}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 clamp(20px,5vw,40px)}
.narrow{max-width:760px}
em{font-style:normal;color:var(--accent-hi)}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--r);backdrop-filter:blur(8px)}
.nav{position:sticky;top:0;z-index:9;background:rgba(7,12,24,.75);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav nav{display:flex;gap:28px;color:var(--mut);font-size:15px}.nav nav a:hover{color:#fff}
.logo{font-weight:800;font-size:22px;letter-spacing:-.02em}.logo span{color:var(--accent-hi)}
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:15px 26px;border-radius:999px;border:0;font-size:16px;cursor:pointer;font-family:inherit;transition:.2s}
.btn:hover{background:#2c5bd6;box-shadow:0 8px 30px rgba(58,109,240,.4)}
.btn.sm{padding:9px 18px;font-size:14px}.btn.ghost{background:transparent;border:1px solid var(--line)}.btn.full{width:100%}
.hero{padding:110px 0 90px;text-align:center}
.eyebrow{color:var(--accent-hi);font-weight:700;font-size:14px;letter-spacing:.08em;margin-bottom:14px}
h1{font-size:clamp(34px,6vw,62px);line-height:1.2;letter-spacing:-.03em;font-weight:800}
h2{font-size:clamp(26px,4vw,40px);line-height:1.3;letter-spacing:-.02em;margin-bottom:40px}
h3{font-size:19px;margin-bottom:8px}
.lead{color:var(--mut);font-size:clamp(16px,2vw,18px);margin:22px auto 0;max-width:680px}
.cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:34px}
.chat-demo{max-width:560px;margin:56px auto 0;padding:22px;text-align:left}
.chat-demo .q{background:var(--accent);margin-left:auto;width:fit-content;max-width:85%;padding:10px 16px;border-radius:18px 18px 4px 18px;font-size:15px}
.chat-demo .a{background:var(--panel);margin-top:12px;max-width:90%;padding:12px 16px;border-radius:18px 18px 18px 4px;font-size:15px;color:#dbe6ff}
.chat-demo .a b{color:var(--accent-hi);margin-right:6px}
mark{background:var(--wash);color:#fff;padding:1px 5px;border-radius:5px;border:1px solid rgba(111,183,255,.4)}
.chat-demo small{display:block;margin-top:10px;color:var(--mut);font-size:12px}
.sec{padding:90px 0;border-top:1px solid var(--line)}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{padding:28px}.card .n{color:var(--accent-hi);font-weight:800;font-size:14px;display:block;margin-bottom:18px}
.card p,.ind li,.d p,.steps p,details p{color:var(--mut);font-size:15px}
.ind{padding:32px}.ind .ic{font-size:34px;width:60px;height:60px;display:grid;place-items:center;background:var(--wash);border-radius:16px;margin-bottom:18px}
.ind .sub{color:var(--accent-hi);font-size:14px;margin-bottom:16px}.ind ul{list-style:none}.ind li{padding:8px 0 8px 20px;position:relative;border-top:1px solid var(--line)}
.ind li:before{content:"✓";position:absolute;left:0;color:var(--accent-hi)}
.about{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:start}.about>div>p{color:var(--mut);margin-bottom:16px}
.sign{color:#fff!important;margin-top:24px}.diff{display:grid;grid-template-columns:1fr 1fr;gap:14px}.d{padding:24px}
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.steps li{padding:28px}
.steps b{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--accent);margin-bottom:16px}
details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between}
summary:after{content:"+";color:var(--accent-hi);font-size:22px}details[open] summary:after{content:"−"}details p{margin-top:12px}
#contact{text-align:center}#contact h2{margin-bottom:0}
.chat{text-align:left;padding:26px;margin-top:36px;display:flex;flex-direction:column;gap:16px}
.bot{background:var(--panel);padding:14px 18px;border-radius:18px 18px 18px 4px;font-size:15px;display:flex;flex-direction:column;gap:10px}
.chat input:not([type=checkbox]),.chat select,.chat textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid var(--line);border-radius:12px;padding:13px 14px;color:#fff;font:inherit;font-size:16px}
.chat select option{color:#000}.chat :focus{outline:2px solid var(--accent);outline-offset:1px}
.agree{display:flex;gap:8px;align-items:center;color:var(--mut);font-size:14px}.err{color:#ffb4b4;font-size:14px}
footer{border-top:1px solid var(--line);padding:50px 0}.foot p{color:var(--mut);font-size:14px;margin-top:10px}.mut{opacity:.6}
@media(max-width:900px){.grid4,.steps{grid-template-columns:1fr 1fr}.grid3,.about{grid-template-columns:1fr}.nav nav{display:none}.pc{display:none}}
@media(max-width:520px){.grid4,.steps,.diff{grid-template-columns:1fr}.hero{padding:70px 0 60px}.sec{padding:64px 0}}
[hidden]{display:none!important}
.demo-link{display:inline-block;margin-top:18px;color:var(--accent-hi);font-weight:700;font-size:15px}.demo-link:hover{text-decoration:underline}
/* multi-page additions */
.nav .menu{display:flex;gap:24px;align-items:center;color:var(--mut);font-size:15px}.nav .menu a:hover{color:#fff}.nav .menu .btn{color:#fff}
.dd{position:relative}.dd-m{position:absolute;top:100%;left:-12px;min-width:220px;padding:10px;background:#0d1830;border:1px solid var(--line);border-radius:14px;display:none;flex-direction:column;box-shadow:0 20px 40px rgba(0,0,0,.4)}
.dd-m a{padding:10px 12px;border-radius:8px}.dd-m a:hover{background:var(--wash)}.dd:hover .dd-m,.dd:focus-within .dd-m{display:flex}.dd:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
.burger{display:none;background:none;border:0;width:40px;height:40px;flex-direction:column;justify-content:center;gap:5px;cursor:pointer}.burger span{display:block;height:2px;background:#fff;border-radius:2px}
.phero{padding:70px 0 40px}.phero h1{font-size:clamp(30px,5vw,52px)}.phero .lead{margin-left:0}
.crumbs{font-size:13px;color:var(--mut);margin-bottom:22px}.crumbs a:hover{color:#fff}
a.ind,a.ind:hover{display:block;transition:.2s}a.ind:hover{border-color:rgba(111,183,255,.5);transform:translateY(-3px)}
.more{color:var(--accent-hi);font-weight:700;font-size:15px}.ind .n{color:var(--accent-hi);font-weight:800;font-size:13px;display:block;margin-bottom:14px}.dim{opacity:.55}
.center{text-align:center}.cta-band{text-align:center}.lead.l{margin-left:0;margin-bottom:24px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.chk{list-style:none;margin-top:10px}.chk li{color:var(--mut);font-size:15px;padding:7px 0 7px 22px;position:relative;border-top:1px solid var(--line)}.chk li:before{content:"✓";position:absolute;left:0;color:var(--accent-hi)}
.qlist{display:flex;flex-direction:column;gap:12px}.qlist.wide{display:grid;grid-template-columns:repeat(3,1fr)}
.qlist .q{background:var(--accent);padding:12px 18px;border-radius:18px 18px 4px 18px;width:fit-content;max-width:100%;font-size:15px}.qlist.wide .q{width:auto}
.chips{display:flex;flex-wrap:wrap;gap:10px}.chips span{border:1px solid var(--line);background:var(--glass);border-radius:999px;padding:8px 16px;font-size:15px}
.demo-box{padding:40px;display:flex;justify-content:space-between;align-items:center;gap:30px;background:linear-gradient(120deg,rgba(58,109,240,.2),rgba(255,255,255,.03))}.demo-box h2{margin-bottom:10px}
.tag{font-size:13px;background:var(--wash);color:var(--accent-hi);border:1px solid rgba(111,183,255,.4);border-radius:999px;padding:3px 10px;vertical-align:middle}
.note{color:var(--mut);font-size:14px;margin:-28px 0 28px}
.report{padding:30px}.r-head{display:flex;justify-content:space-between;gap:20px;margin-bottom:24px;flex-wrap:wrap}.r-head small{display:block;color:var(--mut);font-size:13px}.r-head b{font-size:19px}.score b{color:#ffcf7a}
.report table{width:100%;border-collapse:collapse;font-size:15px;margin-bottom:26px}.report th,.report td{padding:12px;border-bottom:1px solid var(--line);text-align:left}.report th{color:var(--mut);font-weight:600;font-size:13px}
td.o{color:#7fe0a8}td.x{color:#ff9d9d}.r-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}.foot-grid b{display:block;margin-bottom:10px;font-size:14px}.foot-grid div>a:not(.logo){display:block;color:var(--mut);font-size:14px;padding:4px 0}.foot-grid a:hover{color:#fff}.copy{margin-top:30px;font-size:13px}
@media(max-width:900px){
.burger{display:flex}.nav .menu{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:#0a1222;border-bottom:1px solid var(--line);padding:10px 20px 20px}
.menu-open .nav .menu{display:flex}.nav .menu>a,.dd-t{padding:13px 0;border-bottom:1px solid var(--line);display:block}.nav .menu .btn{margin-top:14px;text-align:center}
.dd-m{position:static;display:flex;background:none;border:0;box-shadow:none;padding:0 0 6px 12px}.dd:after{display:none}
.split,.r-grid{grid-template-columns:1fr}.qlist.wide{grid-template-columns:1fr 1fr}.foot-grid{grid-template-columns:1fr 1fr}.demo-box{flex-direction:column;align-items:flex-start}}
@media(max-width:520px){.qlist.wide,.foot-grid{grid-template-columns:1fr}.report{padding:18px;overflow-x:auto}.report table{font-size:13px}}
.demo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.demo-card{display:block;overflow:hidden;padding:0;transition:.2s}.demo-card:hover{transform:translateY(-4px);border-color:rgba(111,183,255,.5)}
.demo-card img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top;display:block;border-bottom:1px solid var(--line)}.dc-b{padding:24px}.dc-b .n{color:var(--accent-hi);font-weight:700;font-size:13px;display:block;margin-bottom:8px}
.geo-el{color:var(--mut);font-size:14px;margin:12px 0 16px}.geo-el b{display:block;color:#fff;font-size:13px;margin-bottom:2px}
@media(max-width:900px){.demo-grid{grid-template-columns:1fr}}
.ceo-line{margin:18px auto 0;display:inline-block;border:1px solid rgba(111,183,255,.35);background:var(--wash);border-radius:999px;padding:8px 18px;font-size:15px;color:#dbe6ff}
.price .pr{font-size:28px;font-weight:800;margin:6px 0 10px}.price .hot{border-color:rgba(111,183,255,.6);box-shadow:0 0 0 1px rgba(111,183,255,.3),0 20px 50px rgba(58,109,240,.2)}
.q30{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:12px;counter-reset:q}.q30 li{background:var(--glass);border:1px solid var(--line);border-radius:14px;padding:14px 16px;font-size:15px;counter-increment:q}.q30 li:before{content:"Q" counter(q) " ";color:var(--accent-hi);font-weight:800}.q30 .more-q{grid-column:1/-1;text-align:center;color:var(--mut)}.q30 .more-q:before{content:""}
@media(max-width:900px){.q30{grid-template-columns:1fr}.ceo-line{border-radius:16px}}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}.grid1{display:flex;flex-direction:column;gap:14px}
.grid2 .card h3{font-size:18px;margin:6px 0 10px}.grid2 .card p{margin-bottom:8px}.grid2 b{color:#fff}.plan-tag{display:inline-block;color:var(--accent-hi)!important;font-weight:700;font-size:13px!important;border:1px solid rgba(111,183,255,.4);border-radius:999px;padding:3px 12px;margin-top:6px}
.warn{background:linear-gradient(120deg,rgba(255,170,80,.14),rgba(255,255,255,.03))}.warn .eyebrow{color:#ffcf7a}.busan-why{color:#dbe6ff;margin-bottom:28px;max-width:760px}
.g5{grid-template-columns:repeat(5,1fr)}
@media(max-width:900px){.grid2{grid-template-columns:1fr}.g5{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.g5{grid-template-columns:1fr}}
.timeline{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative;margin-top:10px}
.timeline:before{content:"";position:absolute;top:34px;left:6%;right:6%;height:2px;background:linear-gradient(90deg,var(--line),var(--accent-hi))}
.timeline li{padding:26px;position:relative}.timeline .yr{display:inline-block;background:#0d1830;border:1px solid var(--line);border-radius:999px;padding:4px 14px;font-weight:800;font-size:14px;margin-bottom:14px}
.timeline .now{border-color:rgba(111,183,255,.6);box-shadow:0 0 0 1px rgba(111,183,255,.3),0 20px 50px rgba(58,109,240,.2)}.timeline .now .yr{background:var(--accent);border-color:var(--accent)}
.timeline p{color:var(--mut);font-size:15px}
@media(max-width:900px){.timeline{grid-template-columns:1fr}.timeline:before{top:0;bottom:0;left:24px;right:auto;width:2px;height:auto}}
.hero-teaser{margin:16px auto 0;max-width:680px;font-size:16px;color:#dbe6ff}.hero-teaser b{color:#ffcf7a}
.whyhero{padding:90px 0;border-top:1px solid var(--line);background:radial-gradient(800px 400px at 50% 0,rgba(58,109,240,.28),transparent 70%),linear-gradient(180deg,#0a1430,#070c18)}
.whyhero .eyebrow{text-align:center}.whyhero h2.big{text-align:center;font-size:clamp(30px,4.6vw,50px);line-height:1.25;margin-bottom:50px;font-weight:800}
.big-tl li{padding:30px}.big-tl h3{font-size:20px;margin-bottom:10px}.big-tl .yr{font-size:15px}
.why-cta{margin-top:40px;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 32px;border-radius:var(--r);background:linear-gradient(120deg,var(--accent),#2a4fc0);flex-wrap:wrap}
.why-cta p{font-size:18px}.why-cta span{font-size:14px;opacity:.85}.why-cta .btn{background:#fff;color:#0d1830}.why-cta .btn:hover{background:#e8efff}
.big-btn{font-size:17px;padding:17px 30px}
@media(max-width:900px){.why-cta{flex-direction:column;align-items:flex-start}}
.closing{text-align:center;font-size:clamp(22px,3.2vw,34px);font-weight:800;line-height:1.4;letter-spacing:-.02em;margin:56px auto 8px;max-width:900px}.closing em{color:#ffcf7a}
.promises{background:linear-gradient(180deg,#070c18,#0a1430 50%,#070c18)}.big-c{text-align:center;font-size:clamp(28px,4.2vw,46px);font-weight:800;margin-bottom:44px}.promises .eyebrow{text-align:center}
.pm{position:relative;padding:30px 28px}.pm .pn{position:absolute;top:22px;right:24px;font-size:42px;font-weight:800;color:rgba(111,183,255,.18);line-height:1}.pm h3{font-size:20px}.pm p{color:var(--mut);font-size:15px}
.p12{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:18px 0}.p12 span{background:var(--wash);border:1px solid rgba(111,183,255,.4);border-radius:999px;padding:7px 16px;font-size:14px;color:#dbe6ff}.p12 b{color:#fff}
.why-cta .p12{justify-content:flex-start;margin:12px 0 0}.why-cta .p12 span{background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.35)}
.promises .grid3{grid-template-columns:repeat(6,1fr)}.promises .pm{grid-column:span 2}.promises .pm:nth-child(4){grid-column:2/span 2}
@media(max-width:900px){.promises .grid3{grid-template-columns:1fr}.promises .pm,.promises .pm:nth-child(4){grid-column:auto}}
.why-cta{display:grid;grid-template-columns:1fr auto;align-items:center}.why-cta .btn{white-space:nowrap}
@media(max-width:900px){.why-cta{grid-template-columns:1fr}}