:root{--bg:#fff;--soft:#f5f8fc;--soft2:#edf4fb;--blue:#3f8fe5;--blue2:#245f9e;--deep:#153f66;--text:#16283c;--body:#43566a;--muted:#718296;--line:#dce7f2;--tag:#eaf4ff;--footer:#123958;--max:1180px;--radius:18px;--shadow:0 18px 50px rgba(25,67,109,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;color:var(--body);background:var(--bg);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;line-height:1.75;overflow-x:hidden}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}button,a{touch-action:manipulation}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.skip-link{position:fixed;left:16px;top:-80px;background:#fff;padding:10px 14px;z-index:2000;border:1px solid var(--line)}.skip-link:focus{top:16px}.safety-strip{background:var(--soft2);border-bottom:1px solid var(--line);font-size:13px;color:#365772;padding:7px 0}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,231,242,.9)}.header-row{height:74px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;flex:0 0 auto}.brand img{width:142px;height:auto}.desktop-nav{display:flex;align-items:stretch;justify-content:center;gap:4px;flex:1;height:100%}.nav-group{position:relative;display:flex;align-items:center}.nav-trigger{border:0;background:transparent;color:var(--text);font-size:14px;font-weight:700;padding:12px 10px;cursor:pointer;min-height:44px}.nav-trigger:focus-visible,.lang-switch:focus-visible,.download-btn:focus-visible,.mobile-menu-btn:focus-visible,.mobile-close:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid rgba(63,143,229,.35);outline-offset:3px}.mega-menu{position:absolute;top:62px;left:50%;transform:translateX(-50%) translateY(-6px);width:min(860px,calc(100vw - 40px));display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);padding:28px;opacity:0;visibility:hidden;pointer-events:none;transition:.16s ease;z-index:1100}.nav-group.open .mega-menu,.nav-group:focus-within .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.mega-intro{background:var(--soft);padding:22px}.mega-kicker{font-weight:800;color:var(--text);font-size:18px;margin:0 0 8px}.mega-intro p{margin:0 0 14px;font-size:14px}.mega-intro a{color:var(--blue2);font-weight:700}.mega-links,.mega-featured{display:flex;flex-direction:column;gap:7px}.mega-links strong,.mega-featured strong{color:var(--text);margin-bottom:5px}.mega-links a{padding:6px 0;border-bottom:1px solid #edf2f7}.mega-featured a{padding:10px 0;border-bottom:1px solid #edf2f7}.mega-featured small{display:block;color:var(--muted)}.header-actions{display:flex;align-items:center;gap:9px}.lang-switch{font-weight:700;color:var(--blue2);min-width:40px;text-align:center}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 20px;background:var(--blue2);color:#fff;font-weight:800;border:1px solid var(--blue2);border-radius:10px}.download-btn.compact{min-height:42px;padding:8px 15px}.download-btn:hover{background:var(--deep)}.mobile-menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;padding:10px}.mobile-menu-btn span{display:block;height:2px;background:var(--text);margin:5px 0}.mobile-menu{position:fixed;inset:0;background:#fff;z-index:1500;overflow:auto;padding:20px}.mobile-menu[hidden]{display:none}.mobile-menu-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:16px}.mobile-menu-top>div{display:flex;gap:14px;align-items:center}.mobile-close{width:44px;height:44px;border:1px solid var(--line);background:#fff;font-size:30px}.mobile-menu-body{padding:16px 0}.mobile-menu-body details{border-bottom:1px solid var(--line)}.mobile-menu-body summary{min-height:52px;display:flex;align-items:center;font-size:18px;font-weight:800;color:var(--text);cursor:pointer}.mobile-menu-body details div{display:grid;grid-template-columns:1fr 1fr;padding:0 0 16px}.mobile-menu-body a{min-height:44px;display:flex;align-items:center}.mobile-menu-bottom{display:grid;gap:10px;padding:20px 0}.mobile-menu-bottom>a:not(.download-btn){min-height:44px;display:flex;align-items:center;border-bottom:1px solid var(--line)}
.hero{padding:70px 0 56px;overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.14fr .86fr;gap:64px;align-items:center}.eyebrow{color:var(--blue2);font-weight:800;letter-spacing:.02em;margin:0 0 8px}.hero h1,.article-hero h1{font-size:clamp(40px,5.2vw,68px);line-height:1.08;letter-spacing:-.03em;color:var(--text);margin:0 0 18px}.hero-sub{font-size:22px;color:var(--blue2);font-weight:700;margin:0 0 12px}.hero-copy{font-size:17px;max-width:720px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:24px}.secondary-link,.text-link{color:var(--blue2);font-weight:800}.capability-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}.capability-tags span{background:var(--tag);border:1px solid #d7ebff;padding:6px 10px;border-radius:8px;font-size:13px}.hero-visual{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,var(--soft2),#fff 72%);border:1px solid var(--line);overflow:hidden}.hero-visual:before,.hero-visual:after{content:"";position:absolute;border:1px solid rgba(63,143,229,.22);transform:rotate(20deg)}.hero-visual:before{width:220px;height:220px;top:-80px;right:-30px}.hero-visual:after{width:150px;height:150px;bottom:-50px;left:20px}.hero-visual img{position:relative;z-index:2;max-height:470px;object-fit:contain}
.section{padding:76px 0}.section.soft{background:var(--soft)}.section-head{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.15;color:var(--text);margin:0}.section-head p{margin:0;max-width:700px}.task-strip{display:grid;grid-template-columns:1.25fr .9fr 1fr .9fr 1.15fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.task-item{padding:24px 20px;min-height:180px;border-right:1px solid var(--line)}.task-item:last-child{border-right:0}.task-num{font-size:12px;color:var(--blue2);font-weight:800}.task-item h3{color:var(--text);margin:8px 0}.task-item p{font-size:14px}.task-item a{color:var(--blue2);font-weight:700}.mosaic{display:grid;grid-template-columns:1.2fr .8fr 1fr;grid-template-rows:auto auto;gap:18px}.mosaic article{border:1px solid var(--line);padding:28px;background:#fff}.mosaic .wide{grid-column:span 2;background:var(--soft2)}.mosaic .tall{grid-row:span 2;background:var(--soft)}.mosaic img{max-height:220px;display:block;margin:18px auto}.mosaic h3{font-size:24px;color:var(--text);margin:0 0 10px}.network-explorer{display:grid;grid-template-columns:260px 1fr;gap:34px}.network-tabs{display:flex;flex-direction:column;border-right:1px solid var(--line)}.network-tabs button{min-height:54px;text-align:left;border:0;border-bottom:1px solid var(--line);background:transparent;padding:12px 14px;font-weight:800;color:var(--body);cursor:pointer}.network-tabs button[aria-selected="true"]{color:var(--blue2);background:var(--soft2)}.network-panels article{display:grid;grid-template-columns:1fr 240px;gap:30px;align-items:center;padding:16px 0 38px;border-bottom:1px solid var(--line)}.network-panels h3{font-size:30px;color:var(--text);margin:0 0 10px}.network-panels img{max-height:190px}.js .network-panels article[hidden]{display:none}.journey{position:relative;display:grid;gap:24px}.journey:before{content:"";position:absolute;left:50%;top:15px;bottom:15px;width:1px;background:var(--line)}.journey-step{width:48%;padding:22px 26px;border:1px solid var(--line);background:#fff;position:relative}.journey-step:nth-child(even){margin-left:auto}.journey-step strong{color:var(--blue2);font-size:13px}.journey-step h3{color:var(--text);margin:5px 0}.web3-process{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start}.process-flow{counter-reset:flow;border-left:2px solid var(--line)}.process-flow li{list-style:none;position:relative;padding:0 0 24px 32px}.process-flow li:before{counter-increment:flow;content:counter(flow,decimal-leading-zero);position:absolute;left:-18px;top:0;background:#fff;color:var(--blue2);font-weight:800;padding:0 6px}.security-band{background:var(--deep);color:#d9ecff}.security-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:center}.security-band h2{color:#fff;font-size:42px}.security-band a{color:#fff}.security-checks{display:grid;grid-template-columns:140px 1fr;gap:24px;align-items:center}.security-checks img{max-height:170px}.security-checks ul{margin:0;padding-left:20px}.academy-editorial{display:grid;grid-template-columns:1.35fr .65fr;gap:40px}.featured-article{padding-right:36px;border-right:1px solid var(--line)}.featured-article h3{font-size:34px;color:var(--text)}.article-list{display:grid}.article-list a{padding:14px 0;border-bottom:1px solid var(--line)}.article-list small{display:block;color:var(--blue2);font-weight:700}.staking-split{display:grid;grid-template-columns:1fr 1fr;gap:50px}.staking-split article{padding:30px 0;border-top:3px solid var(--blue2)}.updates-list{border-top:1px solid var(--line)}.update-row{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}.update-row span{color:var(--blue2);font-weight:800}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{min-height:56px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;color:var(--text);font-weight:800}.faq-list summary:after{content:"+"}.faq-list details[open] summary:after{content:"−"}.faq-list p{margin:0 0 20px}.download-cta{background:var(--soft2);border:1px solid var(--line);padding:42px;display:flex;justify-content:space-between;gap:30px;align-items:center}.download-cta h2{color:var(--text);font-size:36px;margin:0 0 8px}
.article-hero{padding:60px 0;background:var(--soft)}.article-hero-inner{max-width:930px}.breadcrumbs{display:flex;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}.article-hero h1{font-size:clamp(38px,5vw,62px)}.lead{font-size:19px}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:60px;padding-top:54px;padding-bottom:80px}.article-body{min-width:0}.article-section{padding:0 0 40px;margin-bottom:34px;border-bottom:1px solid var(--line)}.article-section h2,.related h2{font-size:32px;line-height:1.25;color:var(--text);margin:0 0 16px}.article-section p{font-size:16px}.check-list{background:var(--soft);padding:20px 24px 20px 44px;border-left:3px solid var(--blue)}.safety-note,.prep-note{padding:22px 24px;background:var(--soft2);border:1px solid var(--line);margin:0 0 34px}.safety-note strong,.prep-note strong{color:var(--text)}.related{padding-top:10px}.related-links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.related-links a{border:1px solid var(--line);padding:16px;display:flex;justify-content:space-between;color:var(--text);font-weight:700}.toc{position:relative}.toc details{position:sticky;top:112px;border-left:1px solid var(--line);padding-left:18px}.toc summary{font-weight:800;color:var(--text);cursor:pointer}.toc ol{padding-left:18px}.toc li{margin:9px 0;font-size:14px}.toc a.active{color:var(--blue2);font-weight:800}.layout-security .article-hero{background:#173f65;color:#d8eaff}.layout-security .article-hero h1,.layout-security .article-hero .eyebrow,.layout-security .article-hero .breadcrumbs a,.layout-security .article-hero .breadcrumbs span{color:#fff}.layout-product .article-hero{background:linear-gradient(120deg,#edf4fb,#fff)}.layout-service .article-hero{background:#f8fafc}
.site-footer{background:var(--footer);color:#cfe0ee;padding:56px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px}.footer-brand img{width:150px;filter:brightness(0) invert(1)}.footer-grid h2{color:#fff;font-size:16px}.footer-grid>div:not(.footer-brand){display:flex;flex-direction:column;gap:8px}.footer-grid a{color:#dbe8f4}.footer-safety{font-size:13px}.footer-bottom{display:flex;gap:22px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;margin-top:38px;font-size:13px}.footer-bottom span:nth-child(2){flex:1}
@media(max-width:1100px){.desktop-nav{display:none}.mobile-menu-btn{display:block}.hero-grid{gap:30px}.mosaic{grid-template-columns:1fr 1fr}.mosaic .tall{grid-row:auto}.mosaic .wide{grid-column:span 2}.footer-grid{grid-template-columns:1fr 1fr}.article-shell{grid-template-columns:1fr}.toc{order:-1}.toc details{position:static;border:1px solid var(--line);padding:14px 18px;background:var(--soft)}}
@media(max-width:768px){.container{width:min(100% - 28px,var(--max))}.safety-strip{font-size:12px;line-height:1.45}.header-row{height:66px;gap:10px}.brand img{width:118px}.header-actions{margin-left:auto}.header-actions .download-btn.compact{padding:7px 11px;font-size:13px}.hero{padding:42px 0}.hero-grid,.section-head,.network-explorer,.web3-process,.security-grid,.academy-editorial,.staking-split{grid-template-columns:1fr}.hero-visual{min-height:390px;order:2}.hero-visual img{max-height:360px}.hero h1{font-size:42px}.hero-sub{font-size:18px}.section{padding:56px 0}.section-head{gap:14px}.task-strip{grid-template-columns:1fr}.task-item{border-right:0;border-bottom:1px solid var(--line);min-height:0}.task-item:last-child{border-bottom:0}.mosaic{grid-template-columns:1fr}.mosaic .wide{grid-column:auto}.network-tabs{flex-direction:row;overflow:auto;border-right:0;border-bottom:1px solid var(--line);scrollbar-width:thin}.network-tabs button{min-width:max-content}.network-panels article{grid-template-columns:1fr}.journey:before{left:13px}.journey-step,.journey-step:nth-child(even){width:100%;margin-left:0;padding-left:42px}.journey-step:before{content:"";position:absolute;width:9px;height:9px;border-radius:50%;background:var(--blue);left:9px;top:30px}.security-checks{grid-template-columns:1fr}.featured-article{padding-right:0;border-right:0;border-bottom:1px solid var(--line);padding-bottom:24px}.update-row{grid-template-columns:1fr;gap:4px}.download-cta{padding:28px;display:block}.download-cta .download-btn{margin-top:18px}.article-hero{padding:42px 0}.article-shell{padding-top:34px;gap:28px}.related-links{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:grid}.mobile-menu-body details div{grid-template-columns:1fr}.article-section h2{font-size:27px}}
@media(max-width:430px){.header-actions .lang-switch{font-size:13px}.hero h1{font-size:36px}.hero-visual{min-height:330px}.hero-visual img{max-height:310px}.section-head h2{font-size:31px}.mobile-menu{padding:16px}.download-btn{width:100%}.hero-actions .text-link,.hero-actions .secondary-link{width:100%;padding:8px 0}.security-band h2{font-size:34px}}