:root{--bg:#fff;--soft:#f5f8fc;--soft2:#edf4fb;--brand:#3f8fe5;--brand2:#245f9e;--deep:#153f66;--title:#16283c;--text:#43566a;--muted:#718296;--line:#dce7f2;--tag:#eaf4ff;--footer:#123958;--max:1180px;--shadow:0 12px 38px rgba(18,57,88,.09)}
*{box-sizing:border-box}button,a{touch-action:manipulation}html{scroll-behavior:smooth;scroll-padding-top:106px}body{margin:0;color:var(--text);background:#fff;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans SC",Arial,sans-serif;line-height:1.72;overflow-x:hidden}body.menu-open{overflow:hidden}a{color:var(--brand2);text-decoration:none}a:hover{text-decoration:underline}img,svg{max-width:100%;height:auto}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.skip-link{position:absolute;left:-999px;top:8px;background:#fff;padding:10px;z-index:9999}.skip-link:focus{left:8px}.security-bar{background:var(--soft2);color:#315b82;border-bottom:1px solid var(--line);font-size:13px}.security-bar .container{padding:8px 0}.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.header-row{height:74px;display:flex;align-items:center;gap:18px}.brand-logo img{width:150px;display:block}.desktop-nav{display:flex;align-items:stretch;gap:2px;flex:1;justify-content:center}.nav-group{position:static}.nav-trigger{height:74px;border:0;background:transparent;color:var(--title);font-weight:650;padding:0 12px;cursor:pointer;font-size:14px}.nav-trigger:focus-visible,.nav-trigger:hover{color:var(--brand2);outline:2px solid transparent}.mega{position:absolute;left:50%;transform:translateX(-50%);top:74px;width:min(1120px,calc(100vw - 32px));background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:28px;display:none;grid-template-columns:1.2fr 1fr 1fr;gap:28px}.nav-group.open .mega,.nav-group:hover .mega,.nav-group:focus-within .mega{display:grid}.mega h3{margin:0 0 8px;color:var(--title);font-size:18px}.mega p{font-size:13px;margin:0 0 14px;color:var(--muted)}.mega ul{list-style:none;margin:0;padding:0}.mega li+li{margin-top:8px}.mega a{font-size:14px}.header-actions{display:flex;align-items:center;gap:9px;white-space:nowrap}.lang-link{padding:9px 8px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;background:var(--brand2);color:#fff!important;border-radius:8px;font-weight:700;text-decoration:none!important;border:1px solid var(--brand2)}.download-btn:hover{background:#1c4f84}.mobile-menu-btn{display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;border-radius:8px;font-size:24px}.mobile-overlay{display:none;position:fixed;inset:0;z-index:1200;background:#fff;overflow:auto}.mobile-overlay.open{display:block}.mobile-top{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);padding:16px 20px;display:flex;align-items:center;gap:12px}.mobile-top img{width:130px}.mobile-top .spacer{flex:1}.mobile-close{width:44px;height:44px;background:#fff;border:1px solid var(--line);border-radius:8px;font-size:24px}.mobile-body{padding:16px 20px 40px}.mgroup{border-bottom:1px solid var(--line)}.mgroup>button{width:100%;min-height:50px;border:0;background:#fff;text-align:left;font-weight:700;color:var(--title);font-size:17px;display:flex;justify-content:space-between;align-items:center}.mgroup .mlinks{display:none;padding:0 0 16px}.mgroup.open .mlinks{display:grid;gap:9px}.hero{background:linear-gradient(90deg,#fff 0,#fff 54%,#f5f8fc 54%,#f5f8fc 100%);padding:68px 0 60px}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:58px;align-items:center}.eyebrow{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--brand2);font-weight:800}.hero h1{font-size:clamp(38px,5vw,64px);line-height:1.08;margin:12px 0 18px;color:var(--title);letter-spacing:-.03em}.hero .lead{font-size:19px;color:#536a80;max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.text-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:22px;font-weight:650}.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}.hero-tags span{background:var(--tag);color:#315f8f;padding:6px 10px;border-radius:6px;font-size:13px}.product-stage{min-height:530px;display:flex;align-items:center;justify-content:center;position:relative}.product-stage:before,.product-stage:after{content:"";position:absolute;border:1px solid #bfd9f1}.product-stage:before{width:330px;height:330px;transform:rotate(12deg)}.product-stage:after{width:210px;height:210px;transform:rotate(-14deg)}.product-stage img{position:relative;z-index:2;max-height:520px;width:auto;object-fit:contain}.section{padding:72px 0}.section.soft{background:var(--soft)}.section-head{display:grid;grid-template-columns:.75fr 1.25fr;gap:42px;margin-bottom:34px;align-items:end}.section-head h2{font-size:34px;line-height:1.2;color:var(--title);margin:0}.section-head p{margin:0;color:var(--muted)}.tasks{display:grid;grid-template-columns:1.2fr .8fr 1.1fr .9fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.task{padding:24px 18px;border-right:1px solid var(--line)}.task:last-child{border-right:0}.task .num{font-size:12px;color:var(--brand2);font-weight:800}.task h3{margin:6px 0 8px;color:var(--title);font-size:18px}.task p{font-size:13px;margin:0 0 8px}.mosaic{display:grid;grid-template-columns:1.35fr .65fr 1fr;grid-template-rows:auto auto;gap:18px}.piece{border:1px solid var(--line);background:#fff;padding:28px;border-radius:12px;min-height:220px}.piece.large{grid-row:span 2;min-height:470px}.piece.wide{grid-column:span 2}.piece h3{color:var(--title);font-size:22px;margin:0 0 10px}.piece img{max-height:220px;object-fit:contain;display:block;margin:18px auto}.network-stage{display:grid;grid-template-columns:260px 1fr;gap:34px}.network-tabs{display:flex;flex-direction:column;gap:6px}.network-tabs button{min-height:48px;text-align:left;border:0;border-left:3px solid transparent;background:transparent;padding:10px 14px;color:var(--text);font-weight:650}.network-tabs button[aria-selected="true"]{border-left-color:var(--brand);background:var(--tag);color:var(--brand2)}.network-panel{display:none}.network-panel.active{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}.network-panel.js-fallback{display:block}.network-panel h3{font-size:30px;color:var(--title);margin-top:0}.steps{position:relative}.steps:before{content:"";position:absolute;left:50%;top:10px;bottom:10px;width:1px;background:#b8cfe4}.step{display:grid;grid-template-columns:1fr 56px 1fr;align-items:center;margin:12px 0}.step .dot{grid-column:2;width:42px;height:42px;border-radius:50%;background:#fff;border:2px solid var(--brand);display:flex;align-items:center;justify-content:center;color:var(--brand2);font-weight:800;z-index:2}.step .copy{padding:20px 28px}.step:nth-child(odd) .copy{grid-column:1;text-align:right}.step:nth-child(even) .copy{grid-column:3}.step h3{margin:0 0 6px;color:var(--title)}.web3-flow{display:grid;grid-template-columns:.82fr 1.18fr;gap:56px}.flow-list{counter-reset:flow}.flow-item{counter-increment:flow;display:grid;grid-template-columns:44px 1fr;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}.flow-item:before{content:counter(flow);width:34px;height:34px;border:1px solid var(--brand);display:flex;align-items:center;justify-content:center;color:var(--brand2);border-radius:50%}.safety-dark{background:var(--deep);color:#dbeaff}.safety-dark h2,.safety-dark h3{color:#fff}.safety-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}.checklist{list-style:none;padding:0}.checklist li{padding:10px 0 10px 30px;position:relative;border-bottom:1px solid rgba(255,255,255,.13)}.checklist li:before{content:"✓";position:absolute;left:0;color:#9fd0ff;font-weight:900}.academy-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:46px}.feature-article{padding-right:40px;border-right:1px solid var(--line)}.feature-article h3{font-size:32px;color:var(--title)}.article-index article{padding:14px 0;border-bottom:1px solid var(--line)}.article-index small{color:var(--brand2);font-weight:700}.pos-layout{display:grid;grid-template-columns:1fr 1fr;gap:24px}.pos-layout>article{padding:28px 0;border-top:2px solid var(--brand)}.updates{border-top:1px solid var(--line)}.update-row{display:grid;grid-template-columns:130px 1fr 160px;gap:22px;padding:18px 0;border-bottom:1px solid var(--line);align-items:start}.update-row .cat{color:var(--brand2);font-weight:800;font-size:13px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;border:0;background:#fff;text-align:left;padding:19px 44px 19px 0;position:relative;font-weight:750;color:var(--title);font-size:17px}.faq-q:after{content:"+";position:absolute;right:8px}.faq-q[aria-expanded="true"]:after{content:"−"}.faq-a{display:block;padding:0 40px 18px 0}.js .faq-a{display:none}.js .faq-item.open .faq-a{display:block}.cta{padding:56px 0;background:var(--soft2)}.cta-inner{display:flex;justify-content:space-between;gap:30px;align-items:center}.cta h2{margin:0;color:var(--title)}.breadcrumbs{font-size:13px;color:var(--muted);padding-top:28px}.page-hero{padding:36px 0 48px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(36px,5vw,56px);color:var(--title);margin:8px 0 14px;line-height:1.15}.page-hero p{max-width:820px;font-size:18px}.content-shell{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:50px;padding:54px 0 80px}.article-content h2{font-size:30px;color:var(--title);margin:42px 0 14px;scroll-margin-top:110px}.article-content h2:first-child{margin-top:0}.article-content h3{font-size:20px;color:var(--title);margin-top:26px}.article-content p{margin:0 0 17px}.article-content ul,.article-content ol{padding-left:22px}.notice{background:var(--soft2);border-left:4px solid var(--brand);padding:18px 20px;margin:28px 0}.risk{background:#f8fafc;border:1px solid var(--line);padding:20px;margin-top:28px}.toc{position:sticky;top:106px;align-self:start;border-left:1px solid var(--line);padding-left:20px}.toc strong{color:var(--title)}.toc a{display:block;padding:6px 0;font-size:14px;color:var(--muted)}.toc a.active{color:var(--brand2);font-weight:700}.toc-mobile{display:none}.product-layout .page-hero{background:var(--soft)}.tutorial-start{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.tutorial-start>div{background:var(--soft);padding:20px}.service-block{border-top:1px solid var(--line);padding-top:22px}.site-footer{background:var(--footer);color:#bfd4e7;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}.site-footer h3{color:#fff;font-size:16px}.site-footer a{color:#d9ecff;display:block;padding:4px 0;font-size:14px}.site-footer .logo{width:150px;filter:brightness(0) invert(1);opacity:.95}.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:28px;margin-top:28px;border-top:1px solid rgba(255,255,255,.14);font-size:13px}.backtop{color:#fff!important}.maintenance{min-height:100vh;display:grid;place-items:center;background:var(--soft);padding:30px}.maintenance-box{max-width:680px;background:#fff;border:1px solid var(--line);padding:48px;box-shadow:var(--shadow);text-align:center}.maintenance-box img{width:180px}.maintenance-box h1{color:var(--title);font-size:38px}
@media(max-width:1020px){.desktop-nav{display:none}.mobile-menu-btn{display:block}.header-row{height:68px}.header-actions{margin-left:auto}.mega{display:none!important}.hero{background:#fff}.hero-grid{grid-template-columns:1fr}.product-stage{background:var(--soft);min-height:420px}.tasks{grid-template-columns:repeat(2,1fr)}.task{border-bottom:1px solid var(--line)}.mosaic{grid-template-columns:1fr 1fr}.piece.large{grid-row:auto}.piece.wide{grid-column:span 2}.network-stage{grid-template-columns:1fr}.network-tabs{flex-direction:row;overflow:auto;padding-bottom:6px}.network-tabs button{white-space:nowrap;border-left:0;border-bottom:3px solid transparent}.network-tabs button[aria-selected="true"]{border-bottom-color:var(--brand)}.content-shell{grid-template-columns:1fr}.toc{display:none}.toc-mobile{display:block;border:1px solid var(--line);padding:14px 18px;margin:20px 0}.toc-mobile summary{font-weight:750;color:var(--title)}.toc-mobile a{display:block;padding:5px 0}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.container{width:min(100% - 28px,var(--max))}.security-bar{font-size:12px}.brand-logo img{width:126px}.header-actions .download-btn{padding:8px 10px;font-size:12px}.lang-link{font-size:13px}.hero{padding:42px 0}.hero-grid{gap:28px}.hero h1{font-size:40px}.product-stage{min-height:360px}.product-stage img{max-height:360px}.section{padding:54px 0}.section-head{grid-template-columns:1fr;gap:12px}.section-head h2{font-size:29px}.tasks{grid-template-columns:1fr}.task{border-right:0}.mosaic{grid-template-columns:1fr}.piece.wide{grid-column:auto}.network-panel.active{grid-template-columns:1fr}.steps:before{left:20px}.step{grid-template-columns:40px 1fr}.step .dot{grid-column:1;width:38px;height:38px}.step .copy,.step:nth-child(odd) .copy,.step:nth-child(even) .copy{grid-column:2;text-align:left;padding:14px 8px 20px 16px}.web3-flow,.safety-grid,.academy-layout,.pos-layout{grid-template-columns:1fr}.feature-article{border-right:0;padding-right:0}.update-row{grid-template-columns:1fr;gap:4px}.cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}.page-hero{padding:26px 0 34px}.content-shell{padding-top:28px}.article-content h2{font-size:26px}.tutorial-start{grid-template-columns:1fr}.mobile-overlay .download-btn{width:100%;margin-top:14px}}