:root{
  --navy:#0d1f3c; --navy2:#13294d; --blue:#1b4dff; --blue2:#4d7bff; --blue3:#84a6ff; --gold:#ffd166;
  --ink:#1c2740; --body:#41506b; --mute:#8a93a6; --line:#e4e9f2;
  --bg:#f4f6fa; --card:#fff; --tint:#eaf0ff; --tintline:#d3e0ff;
  --lo:#4E8C6A; --mid:#8FAEDB; --hi:#D98A3D; --kill:#B3402F;
  --maxw:1040px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;background:var(--bg);color:var(--body);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;word-break:keep-all}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
b,strong{color:var(--ink);font-weight:700}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(244,246,250,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--navy);font-size:15px;white-space:nowrap}
.brand i{width:26px;height:26px;border-radius:7px;background:var(--blue);display:inline-block}
.nav{display:flex;gap:16px;font-size:13.5px;font-weight:600;white-space:nowrap}
.nav a{color:var(--body)}
@media (max-width:1100px){.nav{gap:12px;font-size:12.5px}}
@media (max-width:960px){.nav{display:none}}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;font-weight:800;padding:10px 16px;border-radius:10px;font-size:14px;white-space:nowrap;box-shadow:0 6px 18px rgba(27,77,255,.25)}
.btn:hover{background:#1339c4;text-decoration:none}
.btn.big{font-size:17px;padding:15px 24px;border-radius:14px}
.btn.ghost{background:transparent;color:#fff;border:1px solid #ffffff55;box-shadow:none}

/* hero */
.hero{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;top:-200px;right:-160px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,#1b4dff55,transparent 68%)}
.hero:after{content:"";position:absolute;bottom:-160px;left:-140px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,#2f6fd033,transparent 70%)}
.hero .hwrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:end;padding-top:64px}
.hero .txt{padding-bottom:56px}
.tag{display:inline-block;font-size:12px;letter-spacing:.14em;color:#8fb0ff;font-weight:700;background:#1b4dff22;border:1px solid #1b4dff55;padding:6px 13px;border-radius:20px}
.hero h1{font-size:clamp(34px,5.4vw,56px);line-height:1.18;font-weight:800;letter-spacing:-.025em;margin-top:22px}
.hero h1 span{color:#5f87ff}
.hero p.lead{font-size:clamp(15px,1.7vw,19px);color:#aebdd8;margin-top:20px;max-width:520px;line-height:1.75}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px;align-items:center}
.photo{position:relative;align-self:end;display:flex;justify-content:center}
.photo img{width:min(100%,420px);height:auto;filter:drop-shadow(0 30px 40px rgba(0,0,0,.45));-webkit-mask-image:linear-gradient(to bottom,#000 86%,transparent 100%);mask-image:linear-gradient(to bottom,#000 86%,transparent 100%)}
.photo .name{position:absolute;left:0;bottom:34px;background:rgba(13,31,60,.72);backdrop-filter:blur(8px);border:1px solid #ffffff22;border-radius:14px;padding:12px 16px}
.photo .name b{display:block;color:#fff;font-size:18px}
.photo .name span{display:block;color:#8ea1c8;font-size:12.5px;margin-top:2px}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;position:relative}
.kband{background:var(--navy2);border-top:1px solid #ffffff14}
.kband .wrap{padding:22px 20px}
.kpi{padding:6px 4px}
.kpi b{display:block;color:#fff;font-size:30px;font-weight:800;line-height:1.1;letter-spacing:-.01em}
.kpi b.ac{color:#5f87ff}
.kpi span{display:block;color:#8ea1c8;font-size:12.5px;margin-top:8px;line-height:1.45}

/* sections */
section{padding:72px 0}
section + section{border-top:1px solid var(--line)}
.eyebrow{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:.1em}
h2{font-size:clamp(26px,3.4vw,36px);color:var(--navy);font-weight:800;margin-top:8px;letter-spacing:-.02em;line-height:1.25}
h3{font-size:17px;color:var(--navy);font-weight:800;margin-top:36px}
.one{font-size:16px;color:var(--mute);margin-top:12px;max-width:640px}
.card{background:var(--card);border-radius:18px;padding:24px 26px;box-shadow:0 4px 18px rgba(15,36,64,.05);margin-top:18px}
.card.navy{background:var(--navy);color:#c9d5ec}
.card.navy b,.card.navy strong{color:#fff}
.card.tint{background:var(--tint);border:1px solid var(--tintline);box-shadow:none}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.grid2 .card,.grid3 .card,.grid4 .card{margin-top:0}
.mini{font-size:14px;color:var(--body);margin-top:6px;line-height:1.6}
.stat b{display:block;font-size:30px;color:var(--navy);font-weight:800;line-height:1.1;letter-spacing:-.01em}
.stat b.ac{color:var(--blue)}
.stat span{display:block;font-size:13px;color:var(--mute);margin-top:6px;line-height:1.45}
.step{position:relative;padding-top:4px}
.step em{font-style:normal;display:inline-block;font-size:11.5px;font-weight:800;color:var(--blue);background:var(--tint);padding:3px 9px;border-radius:12px;margin-bottom:10px}
.step b{display:block;font-size:16px}
.step p{font-size:13.5px;margin-top:6px;line-height:1.6}
.card.why{position:relative;padding-top:22px}
.card.why i{display:block;font-style:normal;font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--blue)}
.card.why b{display:block;font-size:19px;color:var(--navy);margin-top:8px;letter-spacing:-.01em}
.card.why p{font-size:14px;margin-top:10px;line-height:1.65}
.callout{font-size:clamp(17px,2vw,21px);line-height:1.65;font-weight:600;color:#fff}
.callout small{display:block;font-size:14px;color:#aebdd8;font-weight:400;margin-top:10px}

/* collapsible detail */
details.more{margin-top:14px}
details.more summary{cursor:pointer;list-style:none;font-size:13.5px;font-weight:700;color:var(--blue);display:inline-flex;align-items:center;gap:6px}
details.more summary::-webkit-details-marker{display:none}
details.more summary:after{content:"＋";font-size:14px}
details.more[open] summary:after{content:"－"}
details.more .body{margin-top:12px;font-size:14px;color:var(--body)}
details.more .body p + p{margin-top:8px}
ul.list{padding-left:0;list-style:none}
ul.list li{position:relative;padding-left:18px;margin-top:8px;font-size:14px}
ul.list li:before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--blue)}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th,.tbl td{padding:11px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{font-size:12px;color:var(--mute);font-weight:700;letter-spacing:.03em;background:#f7f9fd}
.tbl tr:last-child td{border-bottom:0}
.tbl td.r{font-weight:800;white-space:nowrap}
.tbl td.r.w{color:#c05f17}.tbl td.r.m{color:#b42318}
.tscroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* bars */
.bar{display:flex;align-items:center;gap:12px;margin-top:10px;font-size:14px}
.bar .lab{width:112px;flex-shrink:0}
.bar .trk{flex:1;height:14px;background:#eef2f8;border-radius:7px;overflow:hidden;display:flex}
.bar .trk i{display:block;height:100%}
.bar .val{width:56px;text-align:right;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#5a6478;margin-top:10px}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:10px;height:10px;border-radius:2px;display:inline-block}
.c-lo{background:var(--lo)}.c-mid{background:var(--mid)}.c-hi{background:var(--hi)}.c-kill{background:var(--kill)}
.c-b1{background:var(--blue)}.c-b2{background:var(--blue2)}.c-b3{background:var(--blue3)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{font-size:13px;font-weight:700;padding:7px 12px;border-radius:20px;background:#fff;border:1px solid var(--line);color:var(--ink)}
.chip.c{background:#fde8e8;color:#b42318;border-color:#f6c9c9}.chip.r{background:#e8e9fb;color:#4338ca;border-color:#d3d5f5}.chip.m{background:#e3f6ee;color:#0f766e;border-color:#bfe3cf}.chip.a{background:#dff5f2;color:#0f766e;border-color:#b9e4dc}
.chip.sm{font-size:11.5px;padding:3px 9px}

/* killer cards */
.kcard{display:flex;gap:14px}
.kcard .no{flex-shrink:0;width:44px;height:44px;border-radius:12px;background:var(--navy);color:#fff;font-weight:800;font-size:18px;display:flex;align-items:center;justify-content:center}
.kcard h4{font-size:15px;color:var(--navy);font-weight:800;line-height:1.35}
.kcard small{display:block;color:var(--mute);font-size:12.5px;margin-top:3px}
.kcard p{font-size:13.5px;margin-top:8px}

/* compare */
.cmp .head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.pill{font-size:11.5px;font-weight:800;padding:4px 10px;border-radius:6px;background:var(--navy);color:#fff}
.pill.b{background:var(--tint);color:var(--blue)}
.pill.r{background:#fbe9e6;color:var(--kill)}
.cmp .ttl{font-weight:800;color:var(--navy);font-size:15px}
.cmp .pair{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px}
.cmp figure{background:#fafbfe;border:1px solid var(--line);border-radius:12px;padding:12px}
.cmp figcaption{font-size:12.5px;font-weight:700;color:var(--mute);margin-bottom:8px}
.cmp figcaption.ours{color:var(--blue)}
.cmp .same{margin-top:12px;font-size:13.5px;color:var(--body)}

/* roadmap */
.road{list-style:none;margin-top:18px;padding-left:0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.road li{background:var(--card);border-radius:14px;padding:18px;box-shadow:0 4px 14px rgba(15,36,64,.05)}
.road .st{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center}
.road b{display:block;font-size:15px;margin-top:12px}
.road em{font-style:normal;display:block;font-size:12.5px;color:var(--blue);font-weight:700;margin-top:4px}
.road p{font-size:13px;margin-top:8px;line-height:1.55}

/* faq */
.faq details{background:var(--card);border-radius:12px;box-shadow:0 4px 14px rgba(15,36,64,.05);margin-top:10px;padding:0 20px}
.faq summary{cursor:pointer;font-weight:800;color:var(--navy);padding:16px 0;font-size:15.5px;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:14px;color:var(--blue);font-size:20px;font-weight:800}
.faq details[open] summary:after{content:"–"}
.faq .a{padding:0 0 18px;font-size:14.5px}

/* mocks */
.mock{background:#fafbfe;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-top:14px;font-size:13px}
.mock .mh{display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--navy);font-size:13.5px}
.mock .mh span{font-weight:600;color:var(--mute);font-size:11.5px}
.trend{display:flex;align-items:flex-end;gap:10px;height:104px;margin-top:12px;padding:0 4px;border-bottom:1px solid var(--line)}
.trend .col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:4px;height:100%}
.trend .bars{display:flex;align-items:flex-end;gap:3px;height:100%}
.trend .bars i{display:block;width:12px;border-radius:3px 3px 0 0}
.trend .bars .me{background:var(--blue)}
.trend .bars .avg{background:#c9d4ea}
.trend small{font-size:10.5px;color:var(--mute)}
.band{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.band span{font-size:12.5px;font-weight:700;padding:6px 10px;border-radius:8px;background:#fff;border:1px solid var(--line);color:var(--ink)}
.band span.ok{border-color:#bfe3cf;background:#effaf3}
.band span.warn{border-color:#f5d9a8;background:#fff7e8;color:#9a5b00}
.sgrid{display:grid;grid-template-columns:44px repeat(5,1fr);gap:4px;margin-top:10px;font-size:11px}
.sgrid div{background:#f1f4fa;border-radius:4px;text-align:center;padding:6px 0;color:#7a869c}
.sgrid .h{background:#e3ebfa;color:var(--navy);font-weight:800}
.sgrid .t{background:none;text-align:right;padding-right:6px}
.sgrid .me{background:var(--blue);color:#fff;font-weight:800}
.sgrid .ot{background:#dfe6f3;color:var(--navy)}
.sgrid .bk{background:#cfd5df;color:#7a869c}

/* graduation stepper + sheet composition */
.stepper{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);margin:6px 0 0;padding:0}
.stepper li{position:relative;text-align:center;padding:0 8px}
.stepper li:not(:last-child):after{content:"";position:absolute;top:18px;left:calc(50% + 22px);right:calc(-50% + 22px);height:2px;background:var(--tintline)}
.stepper i{display:inline-flex;width:38px;height:38px;border-radius:50%;background:#fff;border:2px solid var(--blue);color:var(--blue);font-style:normal;font-weight:800;align-items:center;justify-content:center;font-size:15px;position:relative;z-index:1}
.stepper li.done i{background:var(--navy);border-color:var(--navy);color:var(--gold)}
.stepper b{display:block;margin-top:10px;font-size:15px;color:var(--navy)}
.stepper span{display:block;font-size:12.5px;color:var(--mute);margin-top:3px;line-height:1.45}
.fill{display:flex;height:38px;border-radius:9px;overflow:hidden;margin-top:14px;font-size:12.5px;font-weight:800;color:#fff}
.fill i{display:flex;align-items:center;justify-content:center;font-style:normal;white-space:nowrap;overflow:hidden}
.fill .f1{background:var(--blue)}.fill .f2{background:var(--blue2)}.fill .f3{background:var(--blue3);color:var(--navy)}
.proof{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.proof .big{font-size:clamp(38px,5.5vw,56px);font-weight:800;color:#fff;line-height:1;letter-spacing:-.02em}
.proof .big em{font-style:normal;color:var(--gold)}
.proof p{flex:1;min-width:240px;font-size:15px}
.rules{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.rules span{font-size:13px;font-weight:700;background:var(--tint);border:1px solid var(--tintline);color:var(--navy);padding:8px 12px;border-radius:10px}
.rules span i{font-style:normal;color:var(--blue);margin-right:6px}

/* contact */
.contact{background:var(--navy);color:#c9d5ec}
.contact h2{color:#fff}
.contact .eyebrow{color:#8fb0ff}
.contact .box{display:grid;grid-template-columns:1.2fr 1fr;gap:20px;margin-top:24px}
.contact .pane{background:#ffffff0d;border:1px solid #ffffff1f;border-radius:16px;padding:24px}
.contact dl{display:grid;grid-template-columns:84px 1fr;gap:8px 12px;font-size:14.5px;margin-top:14px}
.contact dt{color:#8ea1c8}
.contact dd{color:#fff}
.contact .bigtel{font-size:clamp(28px,4vw,40px);font-weight:800;color:#fff;letter-spacing:.01em;margin-top:8px;display:block}
.contact .bigtel:hover{text-decoration:none;color:#5f87ff}

footer{background:#0a1830;color:#6a7fa8;font-size:12.5px;padding:26px 0 40px}
footer .wrap{display:flex;flex-direction:column;gap:6px}
footer a{color:#8ea1c8}
.fab{display:none}

/* 기기별 보이기 — PC(901px~)는 전부, 휴대폰은 핵심만 */
.m-only{display:none}
@media (min-width:901px){
  details.mfold>summary{display:none}
  details.mfold{margin-top:0}
}
@media (max-width:900px){
  .pc-only{display:none !important}
  .m-only{display:inline}
  .hero .hwrap{grid-template-columns:1fr;padding-top:40px;gap:0}
  .hero .txt{padding-bottom:18px}
  .hero h1{font-size:clamp(30px,8.5vw,40px)}
  .hero p.lead{font-size:15px;margin-top:14px}
  .hero .cta{margin-top:22px}
  .hero .cta .btn.big{font-size:16px;padding:14px 20px}
  .photo img{width:min(58%,250px)}
  .photo .name{left:0;bottom:22px;padding:9px 12px}
  .photo .name b{font-size:15px}.photo .name span{font-size:11.5px}
  .kband .wrap{padding:16px 20px}
  .kpis{grid-template-columns:1fr 1fr;gap:10px 14px}
  .kpi b{font-size:24px}.kpi span{font-size:12px;margin-top:5px}
  h2{font-size:clamp(23px,6.6vw,30px)}
  .one{font-size:14.5px}
  h3{font-size:16px;margin-top:28px}
  .grid4{grid-template-columns:1fr;gap:8px}
  .grid4 .card.step{display:grid;grid-template-columns:1fr;padding:14px 16px}
  .step em{margin-bottom:6px}.step b{font-size:15px}.step p{font-size:13px;margin-top:3px}
  .road{grid-template-columns:1fr;gap:8px}
  .road li{display:grid;grid-template-columns:34px 1fr;column-gap:12px;padding:14px 16px}
  .road .st{grid-row:1/4}.road b{margin-top:0;grid-column:2}.road em,.road p{grid-column:2}.road p{margin-top:4px}
  .stat b{font-size:26px}
  .grid2,.grid3,.cmp .pair,.contact .box{grid-template-columns:1fr}
  .grid3{gap:10px}.grid2{gap:10px}
  .stepper{grid-template-columns:1fr;row-gap:16px}
  .stepper li{display:grid;grid-template-columns:38px 1fr;column-gap:14px;text-align:left;padding:0;align-items:start}
  .stepper i{grid-row:1/3}
  .stepper b{margin-top:8px;grid-column:2}
  .stepper span{grid-column:2}
  .stepper li:not(:last-child):after{top:42px;left:18px;right:auto;width:2px;height:calc(100% - 24px)}
  section{padding:44px 0}
  .card{padding:18px 16px;border-radius:14px}
  .callout{font-size:17px}.callout small{font-size:13px}
  .proof .big{font-size:38px}.proof p{font-size:14px}
  .rules span{font-size:12.5px;padding:7px 10px}
  .bar .lab{width:92px;font-size:13px}
  .fab{display:flex;position:fixed;left:16px;right:16px;bottom:16px;z-index:30;justify-content:center;align-items:center;gap:10px;background:var(--blue);color:#fff;font-weight:800;font-size:17px;padding:15px;border-radius:14px;box-shadow:0 10px 28px rgba(27,77,255,.35)}
  .fab:hover{text-decoration:none}
  body{padding-bottom:84px}
}
@media (max-width:420px){
  .kpis{gap:8px}
  .kpi b{font-size:24px}
}