:root{--ink:#1B2230;--ground:#F7F7F4;--card:#fff;--text:#1B2230;--muted:#5A6272;--line:#E1E3DD;--blue:#2458D6;--amber:#A35200;--green:#1F7A4D;--gold:#F2C94C}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--ground);color:var(--text);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif}
a{color:var(--blue)}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.bar{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5}
.bar .wrap{display:flex;align-items:center;height:60px;gap:8px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--text);text-decoration:none;white-space:nowrap}
.badge{width:28px;height:28px;border-radius:8px;background:var(--ink);display:grid;place-items:center;color:var(--gold)}
.bar nav{margin-left:auto;display:flex;gap:4px;align-items:center}
.bar nav a{font-size:14px;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:8px;white-space:nowrap}
.bar nav a:hover{background:var(--ground)}
.bar nav .dlb{background:var(--ink);color:#fff;font-weight:600;margin-left:6px}
.bar nav .dlb:hover{background:#2c3546}
.hero{text-align:center;padding:64px 0 32px}
.hero h1{font-size:clamp(28px,4.4vw,44px);line-height:1.3;margin:0 0 14px}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 60%,#F2C94C88 60%)}
.hero p{color:var(--muted);margin:0 auto 26px;max-width:560px}
.btn{display:inline-block;padding:12px 20px;border-radius:10px;font-weight:600;text-decoration:none;margin:4px}
.pri{background:var(--ink);color:#fff}
.sec{border:1px solid var(--line);background:#fff;color:var(--text)}
.show{background:var(--ink);border-radius:20px;padding:28px;display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:center;margin-top:20px}
.tabs{display:flex;flex-direction:column;gap:8px}
.tab{background:transparent;border:1px solid #2E3646;border-radius:12px;padding:12px 16px;color:#cfd5e0;text-align:left;cursor:pointer;font:inherit}
.tab:hover{border-color:#4a556b}
.tab b{display:block;color:#fff;font-size:17px;margin-bottom:2px}
.tab small{font-size:13px}
.tab.on{background:#fff;border-color:#fff;color:var(--muted)}
.tab.on b{color:var(--c)}
.stage{display:flex;justify-content:center;gap:28px;align-items:center}
.phone{width:290px;height:460px;flex:none;border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 18px 40px rgba(0,0,0,.4)}
.phone img{display:block;width:100%;height:auto}
.steps{color:#cfd5e0;max-width:280px}
.steps h3{color:#fff;margin:0 0 10px;font-size:20px}
.steps ol{margin:0;padding-left:20px}
.steps li{margin:6px 0}
section{padding:64px 0 0}
h2{font-size:26px;margin:0 0 22px;text-align:center}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px}
.card .ic{width:44px;height:44px;border-radius:10px;background:var(--ground);display:grid;place-items:center;font-size:22px;margin-bottom:10px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted)}
.card ol{margin:0;padding-left:20px;color:var(--muted)}
.card li{margin:4px 0}
code{background:var(--ground);padding:1px 6px;border-radius:5px;font-size:.92em}
.note{color:var(--muted);font-size:14px;margin:16px 0 0}
.note.center{text-align:center}
.dl{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.dc{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 22px;min-width:270px;display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--text)}
.dc:hover{border-color:var(--blue);box-shadow:0 4px 14px rgba(36,88,214,.12)}
.dc .ic{width:44px;height:44px;border-radius:10px;background:var(--ground);display:grid;place-items:center;font-size:22px}
.dc b{display:block}
.dc small{color:var(--muted)}
.dc .ar{margin-left:auto;color:var(--blue);font-weight:700;font-size:18px}
footer{padding:56px 0 32px;color:var(--muted);font-size:14px;text-align:center}
@media (max-width:820px){
  .show{grid-template-columns:1fr;padding:18px}
  .tabs{flex-direction:row;overflow-x:auto}
  .tab{flex:none}
  .tab small{display:none}
  .stage{flex-direction:column}
  .grid3{grid-template-columns:1fr}
  .dc{min-width:0;width:100%}
  .bar nav a:not(.dlb){display:none}
}
/* setup page */
.narrow{max-width:860px}
.hero.left{text-align:left;padding:48px 0 16px}
.hero.left p{margin:0 0 16px;max-width:none}
.facts{display:flex;gap:8px;flex-wrap:wrap}
.facts span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-size:14px}
.note.box{background:#fff;border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:10px;padding:14px 18px;font-size:15px}
ol.big{list-style:none;counter-reset:b;padding:0;margin:28px 0 0}
ol.big>li{counter-increment:b;position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 22px 22px 76px;margin-bottom:14px}
ol.big>li::before{content:counter(b);position:absolute;left:22px;top:20px;width:36px;height:36px;border-radius:50%;background:var(--ink);color:var(--gold);display:grid;place-items:center;font-weight:700}
ol.big>li.opt::before{background:var(--ground);color:var(--muted)}
ol.big h2{text-align:left;font-size:20px;margin:4px 0 10px}
ol.big ol{margin:10px 0 0;padding-left:20px;color:var(--text)}
ol.big ol li{margin:5px 0}
.go{display:inline-block;background:var(--blue);color:#fff;text-decoration:none;font-weight:600;font-size:14px;padding:7px 14px;border-radius:8px}
.go:hover{background:#1c48b3}
.path{display:flex;flex-wrap:wrap;gap:4px;align-items:center;margin:0 0 10px;font-size:13px}
.path span{background:var(--ground);border:1px solid var(--line);border-radius:6px;padding:2px 8px}
.path span+span::before{content:"›";margin:0 6px 0 -2px;color:var(--muted)}
.warn{background:#FDF1E7;color:#7A3D00;border-radius:8px;padding:8px 12px;font-size:14px;margin:12px 0 0}
.cap{color:var(--muted);font-size:14px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}
.split .card{padding:18px;background:var(--ground)}
.split ol{padding-left:18px}
.pill{display:inline-block;background:var(--ink);color:#fff;font-size:12px;font-weight:700;padding:2px 8px;border-radius:999px}
.split h3{margin:6px 0 4px}
.copy{display:flex;gap:6px;align-items:center;margin-top:6px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 6px 6px 10px}
.copy code{background:none;padding:0;font-size:12.5px;word-break:break-all;flex:1}
.copy button{flex:none;border:0;background:var(--ink);color:#fff;border-radius:6px;padding:6px 10px;font:inherit;font-size:13px;cursor:pointer}
table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:15px}
th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--muted);font-weight:600;font-size:14px}
#trouble h2{text-align:left}
.bar nav a[aria-current]{color:var(--text);font-weight:600}
.setupCta{display:block;margin-top:16px;background:var(--ink);color:#cfd5e0;border-radius:16px;padding:20px 24px;text-decoration:none}
.setupCta b{display:block;color:#fff;font-size:18px;margin-bottom:4px}
.setupCta em{display:inline-block;font-style:normal;color:var(--gold);font-weight:700;margin-top:8px}
@media (max-width:820px){.split{grid-template-columns:1fr}ol.big>li{padding:64px 16px 18px}ol.big>li::before{top:16px;left:16px}}
.extra{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;margin-top:28px}
.extra h2{text-align:left;font-size:20px;margin:0 0 6px}
.lead2{color:var(--muted);margin:0 0 16px}
.extra .grid3 .card{background:var(--ground)}
.extra .card .ic{background:var(--ink);color:var(--gold);font-weight:700;font-size:16px}
.shot.wide{margin:10px 0 4px;border-radius:10px}
ol.big .shot{margin:10px 0;max-width:100%}
.usageLinks{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:18px}
.usageLinks a{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 16px;text-decoration:none;color:var(--text);font-weight:600}
.shot{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.shot img{display:block;max-width:100%;height:auto}