:root{--bg:#fff;--soft:#f5f8fc;--soft2:#edf4fb;--blue:#3f8fe5;--blue2:#245f9e;--deep:#153f66;--title:#16283c;--text:#43566a;--muted:#718296;--border:#dce7f2;--tag:#eaf4ff;--footer:#123958;--max:1180px;--radius:18px;--shadow:0 16px 45px rgba(25,76,123,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font:16px/1.72 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}img,svg{max-width:100%;height:auto}button,input{font:inherit}.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}.narrow{width:min(calc(100% - 40px),900px)}.skip-link{position:fixed;left:12px;top:-80px;z-index:9999;padding:10px 14px;background:#fff;border:2px solid var(--blue2)}.skip-link:focus{top:12px}.safety-strip{background:var(--soft2);color:#395e7c;text-align:center;padding:8px 18px;font-size:13px;border-bottom:1px solid var(--border)}.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,231,242,.85)}.header-inner{width:min(calc(100% - 32px),1240px);height:72px;margin:auto;display:flex;align-items:center;gap:22px}.brand{display:inline-flex;align-items:center;flex:0 0 auto}.brand img{display:block;width:150px;height:42px;object-fit:contain}.desktop-nav{display:flex;align-items:stretch;justify-content:center;gap:2px;flex:1;height:100%}.nav-group{position:relative;display:flex;align-items:center}.nav-trigger{border:0;background:transparent;color:var(--title);font-weight:650;font-size:14px;padding:14px 11px;min-height:44px;cursor:pointer}.nav-trigger span{margin-left:4px;color:var(--muted)}.nav-trigger:hover,.nav-trigger:focus-visible,.nav-trigger[aria-expanded=true]{color:var(--blue2);outline:none}.mega-menu{position:absolute;left:50%;top:calc(100% - 2px);transform:translateX(-50%) translateY(10px);width:min(760px,calc(100vw - 36px));display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:28px;padding:28px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;opacity:0;visibility:hidden;pointer-events:none;transition:.16s ease}.nav-group.open .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.mega-intro{padding-right:24px;border-right:1px solid var(--border)}.mega-intro p{margin:.4rem 0 1rem;font-size:14px}.eyebrow{text-transform:none;letter-spacing:.03em;color:var(--blue2);font-weight:750;font-size:13px;margin:0 0 8px}.mega-intro a{color:var(--blue2);font-weight:700;font-size:14px}.mega-links,.mega-featured{display:flex;flex-direction:column;gap:6px}.mega-links a,.mega-featured a{padding:7px 0;min-height:36px;color:var(--title);font-size:14px}.mega-links a:hover,.mega-featured a:hover{color:var(--blue2)}.mega-featured strong{font-size:13px;color:var(--muted);margin-bottom:3px}.mega-featured a{display:flex;justify-content:space-between;border-bottom:1px solid var(--border)}.header-actions{display:flex;align-items:center;gap:9px}.lang-link{min-width:38px;text-align:center;font-weight:700;color:var(--blue2)}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:11px;background:var(--blue2);color:#fff;font-weight:750;border:1px solid var(--blue2);transition:.18s}.download-btn:hover{background:var(--deep)}.download-btn.small{min-height:42px;padding:0 15px;font-size:14px}.mobile-menu-button{display:none;width:44px;height:44px;background:#fff;border:1px solid var(--border);border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}.mobile-menu-button span{display:block;width:18px;height:2px;background:var(--title)}.mobile-menu{position:fixed;inset:0;z-index:1200;background:#fff;display:flex;flex-direction:column;transform:translateX(105%);transition:.24s ease;visibility:hidden}.mobile-menu.open{transform:translateX(0);visibility:visible}.mobile-menu-top{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 20px;border-bottom:1px solid var(--border)}.mobile-top-actions{display:flex;align-items:center;gap:12px;font-size:14px}.mobile-close{width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:10px;font-size:28px;line-height:1;cursor:pointer}.mobile-menu-body{padding:8px 20px;overflow:auto;flex:1}.mobile-accordion{border-bottom:1px solid var(--border)}.mobile-accordion-trigger{width:100%;min-height:52px;border:0;background:#fff;display:flex;justify-content:space-between;align-items:center;text-align:left;color:var(--title);font-weight:750;touch-action:manipulation}.mobile-accordion-panel{display:none;padding:0 0 14px}.mobile-accordion.open .mobile-accordion-panel{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px}.mobile-accordion-panel a{padding:8px 0;font-size:14px}.mobile-menu-bottom{padding:16px 20px 24px;display:grid;grid-template-columns:1fr 1fr;gap:12px;border-top:1px solid var(--border)}.mobile-menu-bottom .download-btn{grid-column:1/-1}.page-hero{padding:70px 0 56px;background:linear-gradient(180deg,var(--soft),#fff)}.page-hero h1{max-width:900px;font-size:clamp(34px,5vw,62px);line-height:1.08;letter-spacing:-.025em;color:var(--title);margin:0 0 20px}.lede{font-size:clamp(17px,2vw,21px);max-width:850px;color:#536a80}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:58px;padding-top:48px;padding-bottom:88px}.article-body{min-width:0}.article-body section{padding:28px 0;border-bottom:1px solid var(--border)}.article-body h2{font-size:clamp(26px,3.1vw,38px);line-height:1.2;color:var(--title);margin:0 0 18px;scroll-margin-top:120px}.article-body h3{font-size:20px;color:var(--title)}.article-body p{margin:.7rem 0;color:var(--text)}.article-body ul,.article-body ol{padding-left:1.25rem}.article-body li{margin:.35rem 0}.toc{position:sticky;top:110px;align-self:start;border-left:2px solid var(--border);padding-left:18px}.toc strong{color:var(--title);font-size:14px}.toc nav{display:flex;flex-direction:column;margin-top:10px}.toc a{padding:7px 0;font-size:13px;color:var(--muted)}.toc a.active,.toc a:hover{color:var(--blue2)}.preflight,.principle-band{background:var(--soft);padding:25px!important;border:1px solid var(--border)!important;border-radius:14px;margin-bottom:12px}.principle-band{background:#eef6ff}.check-list{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px;list-style:'✓  '}.number-list{counter-reset:item;list-style:none;padding:0!important;display:grid;gap:10px}.number-list li{padding:14px 16px 14px 54px;border:1px solid var(--border);border-radius:12px;position:relative}.number-list li:before{counter-increment:item;content:counter(item,decimal-leading-zero);position:absolute;left:15px;top:13px;color:var(--blue2);font-weight:800}.risk-note{margin:30px 0;padding:22px 24px;background:var(--deep);color:#dceeff;border-radius:15px}.risk-note strong{color:#fff}.risk-note p{color:#dceeff;margin-bottom:0}.info-split{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}.soft-panel{background:var(--soft2);border:1px solid var(--border);border-radius:14px;padding:20px}.related-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}.related-links a{display:flex;justify-content:space-between;padding:13px 15px;border-bottom:1px solid var(--border);color:var(--title)}.related-links a:hover{color:var(--blue2)}.article-cta{padding-top:28px}.type-security .page-hero{background:var(--deep)}.type-security .page-hero h1,.type-security .page-hero .eyebrow{color:#fff}.type-security .page-hero .lede{color:#d6e7f5}.type-product .page-hero{background:radial-gradient(circle at 78% 35%,#e7f2ff 0 18%,transparent 19%),linear-gradient(135deg,#fff,var(--soft2))}
/* Home */.home-hero{padding:72px 0 56px;position:relative;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}.home-hero h1{font-size:clamp(42px,5.7vw,74px);line-height:1.02;letter-spacing:-.04em;color:var(--title);margin:10px 0 18px}.hero-subtitle{font-size:20px;color:var(--blue2);font-weight:720;margin:0 0 12px}.hero-copy{font-size:18px;max-width:710px}.hero-actions,.hero-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.secondary-btn{display:inline-flex;min-height:46px;align-items:center;padding:0 18px;border:1px solid var(--border);border-radius:11px;color:var(--title);font-weight:700}.hero-links a{font-size:14px;color:var(--blue2);font-weight:700}.cap-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.cap-tags span{padding:6px 10px;background:var(--tag);border-radius:7px;font-size:12px;color:#356b9e}.hero-art{position:relative;min-height:520px;background:var(--soft);border:1px solid var(--border);border-radius:28px;display:flex;align-items:center;justify-content:center}.hero-art:before,.hero-art:after{content:"";position:absolute;border:1px solid #cfe0f0}.hero-art:before{width:260px;height:260px;left:28px;top:28px;transform:rotate(9deg)}.hero-art:after{width:180px;height:180px;right:26px;bottom:34px;border-radius:50%}.hero-art img{position:relative;z-index:2;width:min(82%,420px);max-height:470px;object-fit:contain;filter:drop-shadow(0 30px 25px rgba(30,74,115,.16))}.home-section{padding:82px 0}.home-section.alt{background:var(--soft)}.section-head{display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(30px,4vw,50px);line-height:1.1;color:var(--title);margin:0}.section-head p{margin:0}.task-nav{display:grid;grid-template-columns:1.15fr .85fr 1fr .9fr 1.1fr;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.task-item{padding:26px 22px;border-right:1px solid var(--border);min-height:170px}.task-item:last-child{border-right:0}.task-item b{display:block;color:var(--blue2);font-size:12px}.task-item h3{color:var(--title);font-size:19px;margin:8px 0}.task-item p{font-size:14px;line-height:1.55}.task-item a{color:var(--blue2);font-weight:700;font-size:13px}.mosaic{display:grid;grid-template-columns:1.2fr .8fr 1fr;grid-template-rows:280px 250px;gap:16px}.mosaic>article{border:1px solid var(--border);border-radius:18px;padding:26px;overflow:hidden;background:#fff}.mosaic .wide{grid-column:span 2}.mosaic .tall{grid-row:span 2}.mosaic img{max-height:190px;display:block;margin:8px auto}.mosaic h3{color:var(--title);margin:0 0 8px}.network-explorer{display:grid;grid-template-columns:260px 1fr;gap:34px}.network-tabs{display:flex;flex-direction:column;gap:5px}.network-tabs button{min-height:46px;border:0;border-left:3px solid transparent;background:transparent;text-align:left;padding:9px 14px;color:var(--muted);cursor:pointer}.network-tabs button[aria-selected=true]{border-left-color:var(--blue2);background:#fff;color:var(--title);font-weight:750}.network-panels{background:#fff;border:1px solid var(--border);border-radius:18px;padding:34px}.network-panel{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.network-panel img{max-height:240px;margin:auto}.js .network-panel[hidden]{display:none}.pathway{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:22px 80px}.pathway:before{content:"";position:absolute;left:50%;top:20px;bottom:20px;width:1px;background:var(--border)}.step{padding:20px 0;position:relative}.step:nth-child(even){margin-top:60px}.step b{font-size:30px;color:#a8c6e3}.step h3{color:var(--title);margin:5px 0}.web3-flow{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px}.process{counter-reset:p;display:grid;gap:0}.process div{position:relative;padding:16px 16px 16px 60px;border-bottom:1px solid var(--border)}.process div:before{counter-increment:p;content:counter(p,decimal-leading-zero);position:absolute;left:10px;top:13px;color:var(--blue2);font-weight:800}.security-home{background:var(--deep);color:#dbeafa}.security-home h2{color:#fff}.security-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}.security-grid img{max-height:300px;display:block;margin:auto}.security-list{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px;margin:22px 0}.security-list span{border-bottom:1px solid rgba(255,255,255,.16);padding:8px 0}.editorial{display:grid;grid-template-columns:1.25fr .75fr;gap:50px}.feature-article{padding-right:40px;border-right:1px solid var(--border)}.feature-article h3{font-size:34px;line-height:1.2;color:var(--title)}.article-list{display:flex;flex-direction:column}.article-list a{padding:15px 0;border-bottom:1px solid var(--border)}.article-list small{display:block;color:var(--blue2);font-weight:700}.article-list strong{display:block;color:var(--title)}.pos-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}.pos-grid>article{padding:30px;border-top:3px solid var(--blue2);background:#fff}.timeline-list{border-top:1px solid var(--border)}.timeline-item{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--border)}.timeline-item span{color:var(--muted);font-size:13px}.timeline-item h3{color:var(--title);margin:0 0 5px}.faq-list{max-width:900px;margin:auto}.faq-item{border-bottom:1px solid var(--border)}.faq-question{width:100%;min-height:62px;display:flex;justify-content:space-between;align-items:center;border:0;background:transparent;text-align:left;color:var(--title);font-weight:750;cursor:pointer;padding:14px 0}.faq-answer{padding:0 0 18px}.js .faq-answer{display:none}.js .faq-item.open .faq-answer{display:block}.cta-band{background:var(--blue2);color:#fff}.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-band h2{color:#fff}.cta-band .download-btn{background:#fff;color:var(--blue2);border-color:#fff}.site-footer{background:var(--footer);color:#bcd1e2;padding:64px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:42px}.footer-brand img{width:155px;filter:brightness(0) invert(1);margin-bottom:14px}.footer-grid strong{display:block;color:#fff;margin-bottom:12px}.footer-grid a{display:block;padding:5px 0;font-size:14px}.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:grid;grid-template-columns:auto 1fr auto;gap:24px;font-size:12px}.back-top{color:#fff}
@media(max-width:1080px){.desktop-nav{display:none}.mobile-menu-button{display:flex}.header-inner{gap:12px}.header-actions{margin-left:auto}.hero-grid,.section-head,.web3-flow,.security-grid,.editorial,.pos-grid{grid-template-columns:1fr}.hero-art{min-height:420px}.task-nav{grid-template-columns:1fr 1fr}.task-item{border-bottom:1px solid var(--border)}.task-item:nth-child(2n){border-right:0}.mosaic{grid-template-columns:1fr 1fr;grid-template-rows:auto}.mosaic .tall{grid-row:auto}.article-shell{grid-template-columns:1fr}.toc{position:static;order:-1;border-left:0;border-bottom:1px solid var(--border);padding:0 0 16px}.toc nav{display:flex;flex-direction:row;overflow:auto;gap:16px}.toc a{white-space:nowrap}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}.footer-bottom{grid-template-columns:1fr auto}.footer-bottom span:nth-child(2){grid-column:1/-1;grid-row:2}}
@media(max-width:760px){.wrap,.narrow{width:min(calc(100% - 30px),var(--max))}.safety-strip{text-align:left;line-height:1.45}.header-inner{height:64px;width:calc(100% - 24px)}.brand img{width:128px;height:38px}.header-actions .download-btn.small{padding:0 11px}.header-actions .lang-link{font-size:13px}.page-hero{padding:48px 0 38px}.article-shell{gap:24px;padding-top:28px}.article-body section{padding:24px 0}.check-list,.related-links,.info-split{grid-template-columns:1fr}.home-hero{padding:46px 0}.hero-grid{gap:28px}.home-hero h1{font-size:42px}.hero-art{min-height:350px;border-radius:18px}.hero-art img{max-height:330px}.home-section{padding:58px 0}.task-nav{grid-template-columns:1fr}.task-item{border-right:0;min-height:auto}.mosaic{grid-template-columns:1fr}.mosaic .wide{grid-column:auto}.network-explorer{grid-template-columns:1fr}.network-tabs{flex-direction:row;overflow-x:auto;padding-bottom:4px}.network-tabs button{white-space:nowrap;border-left:0;border-bottom:3px solid transparent;flex:0 0 auto}.network-tabs button[aria-selected=true]{border-left-color:transparent;border-bottom-color:var(--blue2)}.network-panels{padding:22px}.network-panel{grid-template-columns:1fr}.pathway{grid-template-columns:1fr;gap:0;padding-left:30px}.pathway:before{left:8px}.step:nth-child(even){margin-top:0}.security-list{grid-template-columns:1fr}.feature-article{padding-right:0;border-right:0;border-bottom:1px solid var(--border);padding-bottom:26px}.timeline-item{grid-template-columns:1fr;gap:4px}.cta-band .wrap{align-items:flex-start;flex-direction:column;padding-top:40px;padding-bottom:40px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{grid-template-columns:1fr}.footer-bottom span:nth-child(2){grid-column:auto;grid-row:auto}.mobile-accordion.open .mobile-accordion-panel{grid-template-columns:1fr}.header-actions{gap:5px}}
@media(max-width:390px){.header-actions .download-btn.small{display:none}.home-hero h1{font-size:37px}.hero-art{min-height:320px}.mobile-menu-top{padding:0 14px}.mobile-menu-body,.mobile-menu-bottom{padding-left:14px;padding-right:14px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}