:root{
  font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:#17232e;
  background:#f5f7f9;
  font-synthesis:none;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{min-width:320px;margin:0;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom);background:#f5f7f9;color:#17232e}
a{color:inherit}
.guide-header{
  position:sticky;
  z-index:20;
  top:0;
  height:68px;
  padding:0 max(24px,calc((100vw - 1080px)/2));
  border-bottom:1px solid rgba(210,218,225,.85);
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.guide-back{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:19px;font-weight:800}
.guide-back img{width:146px;max-height:32px}
.guide-header-label{color:#6c7984;font-size:12px;font-weight:850}
main{width:min(1080px,calc(100% - 48px));margin:0 auto}
.guide-hero{padding:76px 0 46px;text-align:center}
.guide-eyebrow{margin:0;color:#2f70c7;font-size:13px;font-weight:950;letter-spacing:.06em}
.guide-hero h1{margin:15px 0 0;font-size:52px;line-height:1.12;letter-spacing:-.055em}
.guide-hero>p:last-of-type{max-width:650px;margin:20px auto 0;color:#65737e;font-size:16px;line-height:1.75;letter-spacing:-.018em}
.platform-nav{max-width:720px;margin:34px auto 0;padding:7px;border:1px solid #dce3e8;border-radius:17px;background:#fff;box-shadow:0 8px 30px rgba(24,42,59,.06);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px}
.platform-nav a{min-height:48px;padding:0 12px;border-radius:11px;display:flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;font-size:12px;font-weight:900}
.platform-nav a:hover,.platform-nav a:focus-visible{background:#edf4fb;outline:0}
.platform-dot{width:17px;height:17px;flex:0 0 17px;border-radius:50%;display:grid;place-items:center}
.platform-dot.chrome{background:conic-gradient(#e9544d 0 33%,#f7ca45 0 66%,#49a86f 0);box-shadow:inset 0 0 0 5px #3776d1}
.platform-dot.naver{border-radius:4px;background:#03c75a;color:#fff;font-size:10px;font-weight:950}
.platform-dot.android{border-radius:5px 5px 8px 8px;background:#48a868;position:relative}
.platform-dot.android::before,.platform-dot.android::after{position:absolute;top:-3px;width:1px;height:5px;background:#48a868;content:""}
.platform-dot.android::before{left:4px;transform:rotate(-35deg)}
.platform-dot.android::after{right:4px;transform:rotate(35deg)}
.platform-dot.iphone{border:2px solid #1d2730;background:#fff}
.platform-dot.iphone::after{width:4px;height:4px;border-radius:50%;background:#1d2730;content:""}
.guide-intro{margin-bottom:30px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.guide-intro>div{padding:24px;border:1px solid #dce3e8;border-radius:17px;background:#fff}
.guide-intro strong{font-size:14px}
.guide-intro p{margin:9px 0 0;color:#71808c;font-size:12px;line-height:1.7}
.guide-sections{display:grid;gap:26px}
.platform-section{padding:34px;border:1px solid #dbe3e9;border-radius:24px;background:#fff;box-shadow:0 16px 48px rgba(21,42,60,.055)}
.platform-section>header{margin-bottom:25px;display:grid;grid-template-columns:54px minmax(0,1fr) auto;align-items:center;gap:14px}
.section-number{width:54px;height:54px;border-radius:16px;background:#1f69bd;color:#fff;display:grid;place-items:center;font-size:14px;font-weight:950;box-shadow:0 7px 18px rgba(31,105,189,.2)}
.platform-section header p,.platform-section header h2{margin:0}
.platform-section header p{color:#7c8993;font-size:11px;font-weight:800}
.platform-section header h2{margin-top:4px;font-size:25px;letter-spacing:-.035em}
.section-time{padding:7px 10px;border-radius:999px;background:#edf4fb;color:#416b95;font-size:10px;font-weight:900}
.guide-visual-frame{margin:0;position:relative}
.guide-visual-frame>a{display:block;position:relative;border-radius:18px;text-decoration:none}
.guide-visual{display:block;width:100%;height:auto;border:1px solid #e0e6eb;border-radius:18px;background:#f1f5f8}
.guide-visual-frame span{position:absolute;right:13px;bottom:13px;padding:7px 9px;border-radius:8px;background:rgba(23,35,46,.86);color:#fff;font-size:9px;font-weight:850;box-shadow:0 3px 10px rgba(17,28,39,.18)}
.guide-visual-frame>a:hover span,.guide-visual-frame>a:focus-visible span{background:#1f69bd}
.guide-visual-frame>a:focus-visible{outline:3px solid rgba(31,105,189,.24);outline-offset:3px}
.step-list{margin:27px 0 0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px}
.step-list li{min-width:0;padding:18px;border:1px solid #e0e6eb;border-radius:15px;background:#fafbfc;display:grid;grid-template-columns:28px minmax(0,1fr);align-items:start;gap:10px}
.step-list li>span{width:28px;height:28px;border-radius:9px;background:#e8f1fb;color:#2769ad;display:grid;place-items:center;font-size:11px;font-weight:950}
.step-list strong{font-size:12px;line-height:1.45}
.step-list p{margin:7px 0 0;color:#71808b;font-size:10px;line-height:1.65}
.step-list em{color:#2d639b;font-style:normal;font-weight:900}
.step-list b{font-size:15px}
.platform-note{margin:16px 0 0;padding:13px 15px;border-left:3px solid #03a94e;border-radius:3px 10px 10px 3px;background:#eff9f3;color:#577065;font-size:10px;line-height:1.65}
.platform-note strong{margin-right:5px;color:#19884b}
.guide-finish{margin-top:36px;padding:30px;border-radius:22px;background:#182734;color:#fff;display:grid;grid-template-columns:62px minmax(0,1fr) auto;align-items:center;gap:19px;box-shadow:0 16px 42px rgba(24,39,52,.18)}
.guide-finish>img{width:62px;height:62px;border-radius:16px;background:#fff}
.guide-finish h2{margin:0;font-size:20px;letter-spacing:-.03em}
.guide-finish p{margin:8px 0 0;color:#aebcc8;font-size:12px}
.guide-finish a{min-height:44px;padding:0 18px;border-radius:11px;background:#fff;color:#1c2b37;display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:11px;font-weight:950}
.official-help{margin-top:24px;padding:26px;border:1px solid #dce3e8;border-radius:18px;background:#fff}
.official-help h2{margin:0;font-size:15px}
.official-help p{margin:8px 0 0;color:#71808b;font-size:11px;line-height:1.65}
.official-help>div{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.official-help a{padding:9px 11px;border-radius:8px;background:#eef3f7;color:#42617b;text-decoration:none;font-size:10px;font-weight:850}
.official-help a:hover,.official-help a:focus-visible{background:#e1ecf6;outline:0}
footer{width:min(1080px,calc(100% - 48px));min-height:120px;margin:36px auto 0;padding:28px 0;border-top:1px solid #dbe2e7;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#7c8994;font-size:11px}
footer img{width:146px;opacity:.72}

@media(max-width:760px){
  html{scroll-padding-top:70px}
  .guide-header{height:60px;padding:0 16px}
  .guide-back{gap:8px;font-size:16px}
  .guide-back img{width:125px}
  main{width:min(100% - 28px,680px)}
  .guide-hero{padding:48px 4px 32px}
  .guide-hero h1{font-size:38px}
  .guide-hero>p:last-of-type{font-size:14px}
  .platform-nav{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:25px}
  .guide-intro{grid-template-columns:1fr}
  .platform-section{padding:22px 16px;border-radius:20px}
  .platform-section>header{grid-template-columns:46px minmax(0,1fr) auto;margin-bottom:19px;gap:10px}
  .section-number{width:46px;height:46px;border-radius:13px}
  .platform-section header h2{font-size:21px}
  .guide-visual-frame>a,.guide-visual{border-radius:13px}
  .guide-visual-frame span{right:9px;bottom:9px;padding:6px 8px}
  .step-list{grid-template-columns:1fr;margin-top:20px}
  .step-list li{padding:15px}
  .step-list strong{font-size:13px}
  .step-list p{font-size:11px}
  .guide-finish{padding:24px 20px;grid-template-columns:50px minmax(0,1fr)}
  .guide-finish>img{width:50px;height:50px;border-radius:13px}
  .guide-finish h2{font-size:17px}
  .guide-finish a{grid-column:1/-1}
  .official-help{padding:21px 18px}
  .official-help>div{display:grid}
  footer{width:calc(100% - 32px);min-height:100px;display:grid;justify-items:start}
}

@media(max-width:390px){
  .guide-header-label{display:none}
  .guide-hero h1{font-size:34px}
  .platform-section>header{grid-template-columns:43px minmax(0,1fr)}
  .section-number{width:43px;height:43px}
  .section-time{grid-column:2;justify-self:start}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}