:root{--bg:#fff;--light:#f5f8fc;--light2:#edf4fb;--blue:#3f8fe5;--blue2:#245f9e;--deep:#153f66;--title:#16283c;--text:#43566a;--muted:#718296;--line:#dce7f2;--tag:#eaf4ff;--footer:#123958;--max:1200px;--head:74px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.72 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:var(--blue2);text-decoration:none}a:hover{text-decoration:underline}img{display:block;max-width:100%;height:auto}button{font:inherit}.skip-link{position:fixed;left:12px;top:-80px;background:#fff;padding:10px 14px;z-index:3000;border:2px solid var(--blue2)}.skip-link:focus{top:12px}.safety-bar{padding:9px 16px;text-align:center;background:#edf4fb;color:#294b6c;font-size:13px;border-bottom:1px solid #dce7f2}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-inner{max-width:var(--max);height:var(--head);margin:auto;padding:0 20px;display:flex;align-items:center;gap:20px}.brand{flex:0 0 auto}.brand img{width:142px;height:auto}.desktop-nav{display:flex;gap:2px;align-items:center;flex:1;justify-content:center}.nav-group{position:relative}.nav-trigger{height:44px;border:0;background:none;color:var(--title);padding:0 10px;cursor:pointer;border-radius:8px}.nav-trigger:hover,.nav-trigger:focus-visible,.nav-trigger.active{background:var(--light2);outline:none}.nav-trigger span{margin-left:4px}.mega-menu{position:absolute;top:calc(100% + 13px);left:50%;transform:translateX(-50%) translateY(-4px);width:min(820px,calc(100vw - 40px));display:grid;grid-template-columns:1.15fr 1fr .9fr;gap:26px;padding:24px;background:#fff;border:1px solid var(--line);box-shadow:0 18px 50px rgba(24,55,85,.14);border-radius:14px;opacity:0;visibility:hidden;pointer-events:none;transition:.16s ease}.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 strong{font-size:20px;color:var(--title)}.mega-intro p{font-size:14px;color:var(--muted)}.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px}.mega-links a,.mega-feature a{padding:8px 0;color:var(--title)}.mega-feature{border-left:1px solid var(--line);padding-left:22px;display:flex;flex-direction:column}.mega-feature span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}.header-actions{display:flex;align-items:center;gap:9px}.lang-switch{min-width:44px;text-align:center;padding:9px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:9px;background:var(--blue2);color:#fff;font-weight:700}.download-btn:hover{background:var(--deep);text-decoration:none}.menu-toggle{display:none;width:44px;height:44px;border:0;background:transparent;padding:10px}.menu-toggle span{display:block;height:2px;background:var(--title);margin:5px 0}.mobile-menu{position:fixed;inset:0;background:#fff;z-index:2000;display:none;overflow:auto}.mobile-menu.open{display:flex;flex-direction:column}.mobile-menu-head{height:74px;display:flex;align-items:center;gap:14px;padding:0 18px;border-bottom:1px solid var(--line)}.mobile-menu-head .brand{margin-right:auto}.menu-close{width:44px;height:44px;border:0;background:var(--light);font-size:30px}.mobile-menu-body{padding:12px 18px;flex:1}.mobile-acc{border-bottom:1px solid var(--line)}.mobile-acc-btn{width:100%;min-height:52px;border:0;background:#fff;display:flex;align-items:center;justify-content:space-between;font-weight:700;color:var(--title);text-align:left}.mobile-acc-panel{display:none;padding:0 0 12px 14px}.mobile-acc.open .mobile-acc-panel{display:grid}.mobile-acc-panel a{min-height:44px;display:flex;align-items:center}.mobile-menu-foot{display:grid;gap:8px;padding:18px;border-top:1px solid var(--line)}
main{min-height:60vh}.container{max-width:var(--max);margin:auto;padding:0 20px}.eyebrow{display:inline-block;color:var(--blue2);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.hero{background:linear-gradient(90deg,#fff 0,#fff 55%,#f5f8fc 55%,#f5f8fc 100%)}.hero-inner{max-width:var(--max);margin:auto;padding:84px 20px 78px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:60px}.hero h1{font-size:clamp(42px,5.5vw,72px);line-height:1.08;margin:12px 0 20px;color:var(--title);letter-spacing:-.03em}.hero h2{font-size:19px;font-weight:600;color:var(--blue2);margin:0 0 16px}.hero p{max-width:700px;font-size:18px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}.secondary-links{display:flex;gap:18px;flex-wrap:wrap}.cap-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}.cap-tags span{background:var(--tag);padding:6px 9px;border-radius:6px;font-size:13px}.hero-media{position:relative;min-height:480px;display:flex;align-items:center;justify-content:center}.hero-media:before,.hero-media:after{content:"";position:absolute;border:1px solid #c8dcef}.hero-media:before{width:78%;height:74%;left:10%;top:10%;border-radius:26px}.hero-media:after{width:54%;height:90%;right:0;bottom:0;border-radius:50% 0 0 50%;border-right:0}.hero-media img{position:relative;z-index:1;max-height:520px;object-fit:contain}.section{padding:86px 0}.section.alt{background:var(--light)}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:36px}.section-head h2{font-size:clamp(30px,4vw,48px);line-height:1.12;color:var(--title);margin:8px 0}.section-head p{max-width:620px}.task-nav{display:grid;grid-template-columns:1.1fr .9fr 1.25fr .85fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.task{padding:24px 18px;min-height:160px;border-right:1px solid var(--line)}.task:last-child{border-right:0}.task b{display:block;color:var(--blue);font-size:12px}.task h3{margin:8px 0 6px;color:var(--title);font-size:19px}.task p{font-size:14px;margin:0 0 8px}.mosaic{display:grid;grid-template-columns:1.2fr .8fr 1fr;grid-auto-rows:minmax(180px,auto);gap:18px}.mosaic article{border:1px solid var(--line);padding:26px;background:#fff}.mosaic .wide{grid-column:span 2;display:grid;grid-template-columns:1fr .8fr;gap:20px}.mosaic .tall{grid-row:span 2;background:var(--light2)}.mosaic h3{font-size:24px;color:var(--title);margin-top:0}.mosaic img{max-height:250px;margin:auto}.network-stage{display:grid;grid-template-columns:250px 1fr;gap:34px}.network-tabs{display:flex;flex-direction:column;border-right:1px solid var(--line)}.network-tabs button{min-height:54px;padding:10px 16px;text-align:left;background:none;border:0;border-left:3px solid transparent;color:var(--text)}.network-tabs button[aria-selected="true"]{border-left-color:var(--blue);color:var(--blue2);background:var(--light)}.network-panels{position:relative}.network-panel{padding:6px 10px 10px;display:grid;grid-template-columns:1fr 300px;gap:30px;align-items:center;border-bottom:1px solid var(--line);margin-bottom:18px}.js .network-panel[hidden]{display:none}.network-panel h3{font-size:30px;color:var(--title)}.network-panel img{max-height:240px;margin:auto}.steps{position:relative}.steps:before{content:"";position:absolute;left:50%;top:0;bottom:0;border-left:1px solid #bad2e9}.step{width:50%;padding:0 50px 52px;position:relative}.step:nth-child(even){margin-left:50%}.step:before{content:"";position:absolute;top:5px;width:13px;height:13px;background:#fff;border:3px solid var(--blue);border-radius:50%}.step:nth-child(odd):before{right:-8px}.step:nth-child(even):before{left:-8px}.step b{color:var(--blue);font-size:13px}.step h3{color:var(--title);margin:5px 0}.web3-flow{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px}.flow-list{border-left:2px solid var(--line);padding-left:26px}.flow-item{position:relative;padding:0 0 22px}.flow-item:before{content:"";position:absolute;left:-33px;top:7px;width:12px;height:12px;background:var(--blue);border-radius:50%}.flow-item strong{color:var(--title)}.security-band{background:var(--deep);color:#dbeaff}.security-band .security-inner{max-width:var(--max);margin:auto;padding:78px 20px;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}.security-band h2{color:#fff;font-size:44px}.security-band a{color:#bfe0ff}.security-checks{display:grid;grid-template-columns:1fr 1fr;gap:14px}.security-checks span{padding:16px;border:1px solid rgba(255,255,255,.18);border-radius:8px}.security-band img{max-height:260px;margin:20px auto 0;filter:brightness(1.4)}.editorial{display:grid;grid-template-columns:1.2fr .8fr;gap:58px}.feature-article{border-top:4px solid var(--blue);padding-top:24px}.feature-article h3{font-size:34px;line-height:1.2;color:var(--title)}.article-index{border-top:1px solid var(--line)}.article-index a{display:block;padding:18px 0;border-bottom:1px solid var(--line)}.article-index small{display:block;color:var(--muted)}.staking-split{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line)}.staking-split article{padding:36px}.staking-split article+article{border-left:1px solid var(--line);background:var(--light)}.timeline{border-top:1px solid var(--line)}.timeline-item{display:grid;grid-template-columns:140px 1fr;gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}.timeline-item span{color:var(--muted);font-size:13px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-item h3{margin:0}.faq-q{width:100%;min-height:62px;border:0;background:#fff;color:var(--title);font-weight:700;text-align:left;display:flex;justify-content:space-between;align-items:center;padding:14px 0;cursor:pointer}.faq-a{padding:0 34px 18px 0}.js .faq-a{display:none}.js .faq-item.open .faq-a{display:block}.cta{background:var(--light2);text-align:center;padding:70px 20px}.cta h2{color:var(--title);font-size:40px;margin:0 0 12px}.breadcrumb{max-width:var(--max);margin:28px auto 0;padding:0 20px;display:flex;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted)}.article-hero{max-width:var(--max);margin:0 auto;padding:62px 20px 48px;display:grid;grid-template-columns:1fr auto;gap:50px;align-items:center;border-bottom:1px solid var(--line)}.article-hero h1{font-size:clamp(38px,5vw,60px);line-height:1.1;color:var(--title);margin:10px 0 18px}.article-hero p{font-size:19px;max-width:820px}.article-hero img{width:300px;max-height:330px;object-fit:contain}.article-shell{max-width:var(--max);margin:0 auto;padding:54px 20px 90px}.prose{position:relative;max-width:850px}.prose .toc{position:absolute;left:calc(100% + 56px);top:0;width:240px;position:sticky;float:right;margin-right:-320px;top:110px;padding:18px;border-left:2px solid var(--line)}.toc strong{color:var(--title)}.toc ol{padding-left:20px}.toc a{font-size:14px;color:var(--muted)}.toc a.active{color:var(--blue2);font-weight:700}.mobile-toc{display:none}.article-section{scroll-margin-top:110px;padding:0 0 40px}.article-section h2{font-size:32px;color:var(--title);margin:0 0 14px}.article-section h3{color:var(--title)}.article-section p{font-size:17px}.check-list{padding:0;list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}.check-list li{padding-left:22px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--blue)}.notice{margin-top:20px;padding:24px;border-left:4px solid var(--blue);background:var(--light)}.notice strong{color:var(--title)}.site-footer{background:var(--footer);color:#c9d9e8}.footer-grid{max-width:var(--max);margin:auto;padding:62px 20px 46px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}.footer-grid img{width:150px;filter:brightness(0) invert(1)}.footer-grid strong{display:block;color:#fff;margin-bottom:12px}.footer-grid a{display:block;color:#d7e8f7;padding:5px 0}.footer-safety{font-size:14px;color:#9ec1df}.footer-bottom{max-width:var(--max);margin:auto;padding:18px 20px;border-top:1px solid rgba(255,255,255,.12);display:flex;gap:22px;flex-wrap:wrap;font-size:13px}.footer-bottom a{color:#fff;margin-left:auto}.article-hero.type-security{background:#f7fbff}.article-hero.type-product{background:linear-gradient(110deg,#fff 60%,#f5f8fc 60%)}
@media(max-width:1050px){.desktop-nav{display:none}.menu-toggle{display:block}.hero-inner{grid-template-columns:1fr 430px}.mosaic{grid-template-columns:1fr 1fr}.mosaic .tall{grid-row:auto}.prose .toc{display:none}.mobile-toc{display:block;margin-bottom:28px;padding:12px 16px;background:var(--light);border:1px solid var(--line)}}
@media(max-width:820px){.safety-bar{text-align:left}.header-inner{height:64px;padding:0 14px}.brand img{width:125px}.header-actions .download-btn{padding:0 12px}.hero{background:#fff}.hero-inner{padding:54px 18px;grid-template-columns:1fr}.hero-media{min-height:320px;background:var(--light)}.hero-media img{max-height:350px}.hero h1{font-size:44px}.section{padding:60px 0}.container{padding:0 18px}.section-head{display:block}.task-nav{grid-template-columns:1fr}.task{border-right:0;border-bottom:1px solid var(--line);min-height:auto;padding:20px 0}.mosaic{grid-template-columns:1fr}.mosaic .wide{grid-column:auto;grid-template-columns:1fr}.network-stage{display:block}.network-tabs{flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);scrollbar-width:none}.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:0;border-bottom-color:var(--blue)}.network-panel{grid-template-columns:1fr}.network-panel img{max-height:190px}.steps:before{left:7px}.step,.step:nth-child(even){width:100%;margin-left:0;padding:0 0 38px 34px}.step:nth-child(odd):before,.step:nth-child(even):before{left:0;right:auto}.web3-flow,.security-band .security-inner,.editorial{grid-template-columns:1fr;gap:34px}.security-band h2{font-size:34px}.staking-split{grid-template-columns:1fr}.staking-split article+article{border-left:0;border-top:1px solid var(--line)}.timeline-item{grid-template-columns:1fr;gap:2px}.article-hero{grid-template-columns:1fr;padding:45px 18px 34px}.article-hero img{width:220px}.article-shell{padding:38px 18px 70px}.article-section h2{font-size:27px}.check-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{display:grid}.footer-bottom a{margin-left:0}.header-actions .lang-switch{padding:8px 4px}}
@media(max-width:430px){.header-actions{gap:3px}.header-actions .download-btn{font-size:14px}.hero-inner{padding-top:40px}.hero h1{font-size:38px}.hero p{font-size:16px}.hero-actions .download-btn{width:100%}.secondary-links{gap:12px}.security-checks{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.article-section p{font-size:16px}.article-hero h1{font-size:36px}}

.mobile-current-lang{font-size:13px;color:var(--muted)}
.preflight,.security-principle{max-width:1200px;margin:28px auto 0;padding:0 20px}.preflight>div,.security-principle{background:#edf4fb;border:1px solid #dce7f2;padding:18px 22px;display:flex;gap:18px;align-items:flex-start}.preflight strong,.security-principle strong{color:#16283c;white-space:nowrap}.security-principle{background:#153f66;color:#dbeaff;border:0}.security-principle strong{color:#fff}.tutorial-step{position:relative;padding-left:64px}.step-no{position:absolute;left:0;top:1px;width:42px;height:42px;display:grid;place-items:center;border:1px solid #b8d4ee;color:#245f9e;font-weight:800}.service-prose{max-width:1000px;display:grid;grid-template-columns:1fr 1fr;gap:0 44px}.service-prose .service-section{border-top:1px solid #dce7f2;padding-top:28px}.service-prose .notice{grid-column:1/-1}.product-prose .product-lead{background:#f5f8fc;padding:28px;border-left:4px solid #3f8fe5}.type-service{background:#f5f8fc}.type-tutorial{border-bottom:0}.type-security{border-bottom:0}
@media(max-width:820px){.preflight,.security-principle{margin-top:18px;padding:0 18px}.preflight>div,.security-principle{display:block}.preflight strong,.security-principle strong{display:block;margin-bottom:5px}.tutorial-step{padding-left:0;padding-top:54px}.step-no{top:0}.service-prose{display:block}}
a,button{touch-action:manipulation}