:root{
  --ink:#0a0a0a;
  --ink-soft:#202020;
  --paper:#ffffff;
  --surface:#f6f6f4;
  --surface-2:#eeeeeb;
  --line:#dededb;
  --muted:#626262;
  --muted-2:#8a8a8a;
  --telegram:#229ed9;
  --telegram-hover:#168cc5;
  --radius-sm:12px;
  --radius-md:20px;
  --radius-lg:30px;
  --shadow:0 24px 60px rgba(0,0,0,.09);
  --font:"Pretendard",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans KR",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:82px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;letter-spacing:-.018em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body,button,a,input,textarea{font-family:var(--font)}
a{color:inherit;text-decoration:none}
button{cursor:pointer}
img,svg{display:block;max-width:100%}
.container{width:min(calc(100% - 32px),1180px);margin-inline:auto}
.skip-link{position:fixed;left:16px;top:-80px;z-index:999;background:#000;color:#fff;padding:12px 16px;border-radius:10px;font-weight:800}.skip-link:focus{top:16px}

/* Header — mobile first */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(10,10,10,.09);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.header-row{height:66px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand,.footer-brand{display:inline-flex;align-items:center;gap:10px;min-width:0}
.brand img{width:36px;height:36px;flex:0 0 auto}
.brand span,.footer-brand span{display:block;min-width:0}
.brand strong,.footer-brand strong{display:block;font-size:17px;line-height:1.05;letter-spacing:-.04em;white-space:nowrap}
.brand small,.footer-brand small{display:block;margin-top:4px;color:var(--muted-2);font-size:8px;font-weight:800;line-height:1;letter-spacing:.16em;white-space:nowrap}
.desktop-nav,.contact-button-header{display:none}
.menu-button{width:44px;height:44px;border:0;border-radius:12px;background:#f1f1ef;display:grid;place-content:center;gap:5px;padding:0}
.menu-button span{width:19px;height:2px;background:var(--ink);border-radius:999px;transition:.2s}
.menu-button[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-button[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-button[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{display:none;padding:10px 16px 16px;background:#fff;border-bottom:1px solid var(--line)}
.mobile-menu.open{display:grid;gap:4px}
.mobile-menu a{min-height:46px;display:flex;align-items:center;padding:0 13px;border-radius:10px;font-weight:750}
.mobile-menu a:hover{background:var(--surface)}
.mobile-menu button{min-height:48px;margin-top:7px;border:0;border-radius:12px;background:var(--telegram);color:#fff;font-weight:850}

/* Shared controls */
.contact-button,.outline-button{min-height:50px;border-radius:14px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:15px;font-weight:850;transition:transform .2s,background .2s,border-color .2s}
.contact-button{border:0;background:var(--telegram);color:#fff;box-shadow:0 12px 28px rgba(34,158,217,.2)}
.contact-button:hover,.contact-button:focus-visible{background:var(--telegram-hover);transform:translateY(-2px)}
.contact-button svg{width:20px;height:20px;fill:currentColor;flex:0 0 auto}
.contact-button-header{display:none}
.outline-button{border:1px solid #cfcfcb;background:#fff;color:var(--ink)}
.outline-button:hover,.outline-button:focus-visible{border-color:#111;background:#fafafa;transform:translateY(-2px)}

/* Hero */
.hero{padding:52px 0 76px}
.hero-grid{display:grid;gap:38px}
.kicker,.kicker-plain{display:inline-flex;align-items:center;gap:10px;margin:0 0 24px;color:#666;font-size:10px;font-weight:900;line-height:1;letter-spacing:.16em}
.kicker b,.kicker-plain b{display:grid;place-items:center;width:28px;height:28px;border-radius:9px;background:#000;color:#fff;font-size:10px;letter-spacing:0}
.hero h1{margin:0;font-size:clamp(45px,13vw,66px);font-weight:900;line-height:.99;letter-spacing:-.072em;word-break:keep-all}
.hero h1 em{font-style:normal}
.hero-lead{max-width:650px;margin:25px 0 0;color:var(--muted);font-size:16px;line-height:1.82;word-break:keep-all}
.hero-actions{display:grid;gap:10px;margin-top:30px}
.hero-note{display:flex;flex-wrap:wrap;gap:9px 15px;margin-top:24px;color:#4d4d4d;font-size:12.5px;font-weight:750}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.hero-note span:before{content:"";width:6px;height:6px;border-radius:50%;background:#111}
.route-board{position:relative;overflow:hidden;padding:22px;border-radius:26px;background:#0a0a0a;color:#fff;box-shadow:var(--shadow)}
.route-board:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 92% 0%,rgba(255,255,255,.14),transparent 32%);pointer-events:none}
.board-head,.route-domain,.route-flow,.board-result{position:relative;z-index:1}
.board-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid #303030;font-size:10px;font-weight:900;letter-spacing:.14em}
.board-head span{color:#adadad;font-size:9px;letter-spacing:.08em}
.route-domain{padding:22px 0 18px}
.route-domain small{display:block;color:#939393;font-size:11px}
.route-domain strong{display:block;margin-top:4px;font-size:23px;line-height:1.2;letter-spacing:-.04em;overflow-wrap:anywhere}
.route-flow{display:grid;gap:10px}
.route-step{display:grid;grid-template-columns:38px 1fr auto;align-items:center;gap:12px;padding:15px;border:1px solid #303030;border-radius:15px;background:#151515}
.route-step>b{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#fff;color:#000;font-size:10px}
.route-step strong{display:block;font-size:14px}.route-step small{display:block;margin-top:2px;color:#999;font-size:11px}.route-step i{font-style:normal;color:#bdbdbd;font-size:9px;font-weight:900}
.route-path{height:49px;margin:2px 24px 0;border-left:2px solid #767676;border-bottom:2px solid #767676;border-radius:0 0 0 16px;position:relative}
.route-path:after{content:"";position:absolute;right:-1px;bottom:-5px;width:9px;height:9px;border-top:2px solid #fff;border-right:2px solid #fff;transform:rotate(45deg)}
.board-result{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-top:16px;padding:18px;border-radius:16px;background:#fff;color:#000}
.board-result small{display:block;color:#777;font-size:10px}.board-result strong{display:block;margin-top:4px;font-size:19px}.board-result span{font-size:10px;font-weight:900}

/* Sections */
.section{padding:76px 0}
.section-head{display:grid;gap:14px;margin-bottom:32px}
.section-index{margin:0;color:#737373;font-size:10px;font-weight:900;letter-spacing:.16em}
.section-head h2,.support-copy h2,.faq-intro h2{margin:0;font-size:clamp(34px,9vw,48px);font-weight:900;line-height:1.08;letter-spacing:-.058em;word-break:keep-all}
.section-head p,.support-copy>p,.faq-intro>p{margin:0;color:var(--muted);font-size:15px;line-height:1.78;word-break:keep-all}
.issue-grid,.workflow,.insight-grid{display:grid;gap:14px}
.issue-card,.flow-card,.insight-card{border:1px solid var(--line);border-radius:20px;background:#fff}
.issue-card{min-height:250px;padding:23px;display:flex;flex-direction:column}
.issue-number{font-size:10px;font-weight:900;letter-spacing:.12em;color:#777}
.issue-card h3{margin:auto 0 12px;font-size:24px;line-height:1.18;letter-spacing:-.045em}.issue-card p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.75}.issue-card a{margin-top:20px;font-size:13px;font-weight:900}
.section-dark{background:#0a0a0a;color:#fff}
.support-layout{display:grid;gap:36px}
.support-copy .section-index{color:#999}
.support-copy h2 em{font-style:normal;color:#fff}
.support-copy>p{margin-top:18px;color:#b9b9b9}
.network-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.network-pills span{padding:8px 11px;border:1px solid #343434;border-radius:999px;background:#151515;color:#e9e9e9;font-size:12px;font-weight:800}
.platform-table{display:grid;gap:10px}
.platform-row{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center;padding:17px 18px;border:1px solid #2f2f2f;border-radius:16px;background:#141414}
.platform-row strong{display:block;color:#fff;font-size:17px}.platform-row small{display:block;margin-top:2px;color:#929292;font-size:12px}.platform-row span{color:#fff;font-size:9px;font-weight:900;letter-spacing:.08em}
.flow-card{min-height:220px;padding:23px}
.flow-card b{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:#111;color:#fff;font-size:11px}
.flow-card h3{margin:34px 0 10px;font-size:21px;letter-spacing:-.035em}.flow-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.74}
#faq{background:var(--surface)}
.faq-layout{display:grid;gap:30px}
.faq-intro p{margin-top:16px}
.faq-list{display:grid;gap:10px}
.faq-item{overflow:hidden;border:1px solid var(--line);border-radius:17px;background:#fff}
.faq-item summary{list-style:none;display:grid;grid-template-columns:1fr 32px;align-items:center;gap:15px;min-height:70px;padding:17px 18px;background:#fff;color:#111;font-size:16px;font-weight:850;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"+";display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#f0f0ed;color:#111;font-size:20px;font-weight:500}
.faq-item[open] summary:after{content:"−";background:#111;color:#fff}
.faq-answer{padding:0 18px 18px;background:#fff}
.faq-answer p{margin:0;padding-top:16px;border-top:1px solid var(--line);color:#444!important;font-size:15px;line-height:1.82}
.insight-card{min-height:230px;padding:23px;display:flex;flex-direction:column}
.insight-card small{font-size:10px;font-weight:900;letter-spacing:.1em;color:#777}.insight-card h3{margin:31px 0 10px;font-size:22px;line-height:1.25;letter-spacing:-.04em}.insight-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}.insight-card span{margin-top:auto;padding-top:22px;font-size:13px;font-weight:900}
.cta{padding:0 0 76px}.cta-box{display:grid;gap:25px;padding:31px 24px;border-radius:24px;background:#0a0a0a;color:#fff}.cta-box h2{margin:0;font-size:34px;font-weight:900;line-height:1.08;letter-spacing:-.055em}.cta-box p{margin:13px 0 0;color:#b8b8b8;font-size:14.5px}.contact-button-light{justify-self:start}

/* Footer */
.site-footer{padding:48px 0 92px;border-top:1px solid var(--line);background:#fff}
.footer-grid{display:grid;gap:30px}.footer-brand img{width:40px;height:40px}.footer-text{max-width:620px;margin:16px 0 0;color:#757575;font-size:13px;line-height:1.75}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:11px 20px}.footer-links a,.footer-links button{padding:0;border:0;background:transparent;color:#555;text-align:left;font-size:13px}.footer-bottom{display:grid;gap:4px;margin-top:32px;padding-top:18px;border-top:1px solid var(--line);color:#8a8a8a;font-size:12px}
.toast{position:fixed;left:50%;bottom:82px;z-index:100;max-width:calc(100% - 32px);transform:translate(-50%,12px);opacity:0;padding:11px 15px;border-radius:11px;background:#111;color:#fff;font-size:13px;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
.reveal{opacity:1;transform:none}

/* Article & legal pages */
.article-hero{padding:52px 0 44px;background:var(--surface)}
.breadcrumbs{margin-bottom:22px;color:#707070;font-size:12px;font-weight:750}.article-hero .label{color:#666;font-size:10px;font-weight:900;letter-spacing:.15em}.article-hero h1{max-width:880px;margin:15px 0 18px;font-size:clamp(40px,11vw,62px);font-weight:900;line-height:1.03;letter-spacing:-.062em;word-break:keep-all}.article-hero p{max-width:790px;margin:0;color:var(--muted);font-size:16px;line-height:1.78}.article-meta{display:flex;flex-wrap:wrap;gap:8px 16px!important;margin-top:18px!important;color:#7a7a7a!important;font-size:12px!important}.article-meta span,.article-meta time{display:inline-flex;align-items:center;gap:6px}.article-meta span:before,.article-meta time:before{content:"";width:4px;height:4px;border-radius:50%;background:#111}
.article-shell{display:grid;gap:34px;padding:52px 0 76px}.article-aside{display:none}.article-content{max-width:790px}.article-content h2{margin:44px 0 15px;font-size:29px;line-height:1.24;letter-spacing:-.045em}.article-content h2:first-child{margin-top:0}.article-content h3{margin:30px 0 10px;font-size:21px}.article-content p,.article-content li{color:#505050;font-size:16px;line-height:1.88}.article-content ul{padding-left:21px}.callout{margin:28px 0;padding:21px 21px;border-radius:16px;background:#f3f3f0}.callout strong{display:block;margin-bottom:6px;font-size:18px}.callout p{margin:0}.keyword-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:36px}.keyword-links a{padding:8px 11px;border:1px solid var(--line);border-radius:999px;font-size:12px;font-weight:800}.article-cta{display:grid;gap:18px;margin-top:48px;padding:25px;border-radius:19px;background:#0a0a0a;color:#fff}.article-cta strong{font-size:18px}.article-cta p{margin:5px 0 0;color:#b9b9b9;font-size:14px}.article-cta button{min-height:48px;border:0;border-radius:13px;background:var(--telegram);color:#fff;font-weight:900}.legal{max-width:860px;padding:55px 0 82px}.legal h1{margin:0 0 30px;font-size:42px;line-height:1.08;letter-spacing:-.055em}.legal h2{margin:38px 0 12px;font-size:25px}.legal p,.legal li{color:#555;line-height:1.85}

@media (min-width:600px){
    .container{width:min(calc(100% - 48px),1180px)}
  .hero-actions{display:flex;align-items:center}.hero-actions>*{min-width:170px}
  .issue-grid,.workflow,.insight-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-box{padding:38px}.footer-bottom{display:flex;justify-content:space-between}
}
@media (min-width:860px){
  .header-row{height:74px}.brand img{width:40px;height:40px}.brand strong{font-size:19px}
  .hero{padding:82px 0 104px}.hero-grid{grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);align-items:center;gap:64px}.hero h1{font-size:clamp(58px,6vw,82px)}.hero-lead{font-size:17px}.route-board{padding:28px;border-radius:30px}
  .section{padding:104px 0}.section-head{grid-template-columns:1fr;align-items:start;gap:14px;margin-bottom:48px;max-width:780px}.section-head p{justify-self:start;max-width:650px}
  .issue-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.issue-card{min-height:285px;padding:27px}
  .support-layout{grid-template-columns:minmax(0,.85fr) minmax(440px,1.15fr);align-items:center;gap:74px}
  .workflow{grid-template-columns:repeat(4,minmax(0,1fr))}.flow-card{min-height:250px}
  .faq-layout{grid-template-columns:minmax(260px,.72fr) minmax(0,1.28fr);gap:70px}.faq-intro{position:sticky;top:112px;align-self:start}
  .insight-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cta{padding-bottom:104px}.cta-box{grid-template-columns:1fr auto;align-items:center;padding:46px 50px}.cta-box h2{font-size:42px}.contact-button-light{justify-self:end}
  .footer-grid{grid-template-columns:1fr auto;align-items:start}.footer-links{grid-template-columns:repeat(2,auto);gap:10px 28px}
  .article-hero{padding:76px 0 62px}.article-hero p{font-size:18px}.article-shell{grid-template-columns:210px minmax(0,1fr);gap:66px;padding:72px 0 104px}.article-aside{display:block;position:sticky;top:110px;align-self:start;padding-top:16px;border-top:2px solid #111}.article-aside strong{display:block;margin-bottom:10px;font-size:10px;letter-spacing:.14em}.article-aside a{display:block;padding:8px 0;color:#666;font-size:13px}.article-aside a:hover{color:#000}.article-content h2{font-size:34px}.article-cta{grid-template-columns:1fr auto;align-items:center}.article-cta button{padding:0 19px}
}
@media (min-width:1040px){
    .desktop-nav{display:flex;align-items:center;gap:30px;margin-left:auto}.desktop-nav a{font-size:14px;font-weight:760;color:#333}.desktop-nav a:hover{color:#000}.contact-button-header{display:inline-flex;min-height:44px;margin-left:4px;border-radius:13px;padding:0 15px;font-size:13px}.menu-button,.mobile-menu{display:none!important}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Blue is reserved exclusively for Telegram controls. */
.section-head,.section-head>div,.section-head h2,.section-head p{text-align:left}