:root{--blue:#3f8fe5;--blue2:#245f9e;--deep:#153f66;--title:#16283c;--text:#43566a;--muted:#718296;--border:#dce7f2;--soft:#f5f8fc;--soft2:#edf4fb;--footer:#123958;--max:1240px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;color:var(--text);line-height:1.72;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}button,summary{font:inherit}.skip{position:fixed;top:-80px;left:12px;z-index:999;background:#fff;padding:10px}.skip:focus{top:12px}.safety-strip{background:var(--soft2);color:var(--deep);padding:8px 20px;text-align:center;font-size:13px;border-bottom:1px solid var(--border)}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--border)}.header-inner{max-width:var(--max);height:72px;margin:auto;padding:0 22px;display:flex;align-items:center;gap:16px}.brand img{width:148px;height:42px;object-fit:contain}.desktop-nav{flex:1;height:100%;display:flex;justify-content:center}.nav-group{display:flex;align-items:stretch}.nav-trigger{border:0;background:transparent;padding:0 11px;color:var(--title);font-weight:700;cursor:pointer}.nav-trigger span{font-size:12px;margin-left:4px}.mega-menu{position:absolute;top:72px;left:50%;transform:translateX(-50%);width:min(1180px,calc(100vw - 44px));padding:28px;background:#fff;border:1px solid var(--border);box-shadow:0 16px 36px rgba(35,75,110,.09);display:grid;grid-template-columns:1fr 1.2fr .9fr;gap:28px}.mega-menu[hidden]{display:none}.mega-intro{padding-right:24px;border-right:1px solid var(--border)}.mega-intro strong,.mega-feature>strong{color:var(--title)}.mega-intro a{color:var(--blue2);font-weight:700}.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:7px 18px}.mega-links a{padding:8px 0;border-bottom:1px solid #edf3f8;color:var(--title)}.mega-feature{background:var(--soft);padding:16px}.mega-feature a{display:block;padding:11px 0;border-bottom:1px solid var(--border);font-weight:700;color:var(--title)}.mega-feature small{display:block;color:var(--muted);font-weight:400}.header-actions{display:flex;align-items:center;gap:8px}.lang{font-weight:700;color:var(--blue2);padding:8px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;background:var(--blue2);color:#fff!important;padding:9px 17px;border-radius:8px;font-weight:800}.mobile-menu-btn{display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:8px;align-items:center;justify-content:center;flex-direction:column;gap:4px}.mobile-menu-btn span{width:20px;height:2px;background:var(--title)}.mobile-menu{position:fixed;inset:0;z-index:300;background:#fff;padding:18px 20px;overflow:auto}.mobile-menu[hidden]{display:none}.mobile-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);padding-bottom:12px}.mobile-top>div{display:flex;align-items:center;gap:15px}.mobile-close{width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:8px;font-size:28px}.mobile-menu details{border-bottom:1px solid var(--border)}.mobile-menu summary{min-height:50px;display:flex;align-items:center;color:var(--title);font-weight:800}.mobile-menu details a{display:block;padding:8px 10px}.mobile-bottom{display:grid;gap:9px;padding-top:20px}body.menu-open{overflow:hidden}
.hero{max-width:var(--max);margin:auto;padding:72px 22px 58px;display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}.eyebrow{display:inline-block;color:var(--blue2);font-weight:800;font-size:13px;letter-spacing:.05em}.hero h1,.inner-hero h1{color:var(--title);font-size:clamp(40px,5vw,68px);line-height:1.06;letter-spacing:-.03em;margin:12px 0 18px}.hero .subtitle{font-size:20px;color:var(--blue2);font-weight:800}.hero p{font-size:17px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0}.secondary{padding:10px;color:var(--blue2);font-weight:800}.hero-tags{display:flex;gap:8px;flex-wrap:wrap}.hero-tags span{background:#eaf4ff;border:1px solid #d6e9fb;color:var(--blue2);padding:6px 9px;border-radius:6px;font-size:13px}.hero-visual{min-height:470px;background:linear-gradient(145deg,var(--soft) 0 62%,var(--soft2) 62%);border:1px solid var(--border);display:flex;align-items:center;justify-content:center}.hero-visual img{max-height:430px;object-fit:contain}.task-strip{max-width:var(--max);margin:0 auto 76px;padding:0 22px;display:grid;grid-template-columns:1.2fr .9fr 1.1fr .9fr 1.2fr;border-block:1px solid var(--border)}.task{padding:20px;border-right:1px solid var(--border)}.task:last-child{border-right:0}.task small{color:var(--blue2);font-weight:800}.task h3{color:var(--title);font-size:16px;margin:4px 0}.task p{font-size:13px;color:var(--muted);margin:0 0 6px}.task a{color:var(--blue2);font-size:13px;font-weight:800}.section{padding:78px 22px}.soft{background:var(--soft)}.deep{background:var(--deep);color:#dcecff}.section-inner{max-width:var(--max);margin:auto}.section-head{max-width:770px;margin-bottom:34px}.section-head h2,.deep h2{color:var(--title);font-size:clamp(30px,4vw,48px);line-height:1.15;margin:8px 0}.deep h2,.deep h3{color:#fff}.mosaic{display:grid;grid-template-columns:1.15fr .85fr 1fr;gap:18px}.mosaic article{background:#fff;border:1px solid var(--border);padding:26px;min-height:210px}.mosaic .wide{grid-column:span 2}.mosaic .tall{grid-row:span 2}.mosaic h3{color:var(--title)}.mosaic img{max-height:260px;display:block;margin:16px auto 0;object-fit:contain}.network-stage{display:grid;grid-template-columns:260px 1fr;gap:28px}.network-tabs{display:flex;flex-direction:column}.network-tabs button{border:0;border-left:3px solid transparent;background:transparent;text-align:left;padding:14px;color:var(--text);cursor:pointer}.network-tabs button[aria-selected="true"]{border-left-color:var(--blue);background:#fff;color:var(--blue2);font-weight:800}.network-panel{display:grid;grid-template-columns:1fr .9fr;gap:26px;align-items:center;background:#fff;border:1px solid var(--border);padding:30px}.network-panel[hidden]{display:none}.network-panel h3{color:var(--title);font-size:28px}.network-panel img{max-height:280px;margin:auto}.steps{display:grid;grid-template-columns:1fr 1fr;gap:0 72px;position:relative}.steps:before{content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;background:var(--border)}.step{position:relative;padding:22px 0 30px}.step:nth-child(even){grid-column:2}.step:nth-child(odd){grid-column:1}.step:nth-child(2){grid-row:2}.step:nth-child(3){grid-row:3}.step:nth-child(4){grid-row:4}.step:nth-child(5){grid-row:5}.step:nth-child(6){grid-row:6}.step h3{color:var(--title);margin:4px 0}.step strong{color:var(--blue2)}.process,.security-layout,.editorial,.staking{display:grid;grid-template-columns:1fr 1fr;gap:48px}.process-flow{border-left:2px solid var(--border);padding-left:22px}.process-flow div{padding:13px 0;position:relative}.process-flow div:before{content:"";position:absolute;left:-29px;top:22px;width:12px;height:12px;border-radius:50%;background:var(--blue)}.notice{background:var(--soft2);border-left:4px solid var(--blue);padding:17px 19px;margin:22px 0}.security-art{padding:28px;background:rgba(255,255,255,.06);border:1px solid 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section{padding:31px 0;border-bottom:1px solid var(--border)}.longform h2{color:var(--title);font-size:30px;line-height:1.25;margin:0 0 14px}.check-list{list-style:none;padding:0}.check-list li{position:relative;padding:8px 0 8px 26px;border-bottom:1px dotted var(--border)}.check-list li:before{content:"";position:absolute;left:0;top:16px;width:9px;height:9px;border:2px solid var(--blue);border-radius:50%}.toc{position:sticky;top:100px;border-left:2px solid var(--border);padding-left:16px}.toc strong{color:var(--title)}.toc a{font-size:13px;color:var(--muted)}.risk-box{background:var(--soft);border:1px solid var(--border);padding:20px;margin-top:28px}.risk-box strong{color:var(--title)}.glossary{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px}.term{padding:14px 0;border-bottom:1px solid var(--border)}.term strong{display:block;color:var(--title)}.support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.support-grid article{padding:18px;border:1px solid var(--border)}.support-grid h3{color:var(--title)}.site-footer{background:var(--footer);color:#cfe1f2;padding:52px 22px 24px}.footer-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px}.footer-grid img{width:145px;filter:brightness(0) invert(1)}.footer-grid strong{display:block;color:#fff;margin-bottom:12px}.footer-grid a{display:block;padding:5px 0}.muted{color:#9fc6e4;font-size:13px}.footer-bottom{max-width:var(--max);margin:34px auto 0;padding-top:18px;border-top:1px solid rgba(255,255,255,.15);display:flex;flex-wrap:wrap;justify-content:space-between;gap:15px;font-size:12px;color:#9fc6e4}.footer-bottom a{color:#fff}
@media(max-width:1120px){.desktop-nav{display:none}.mobile-menu-btn{display:flex}.header-inner{height:66px}.mosaic{grid-template-columns:1fr 1fr}.mosaic .tall{grid-row:auto}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}}
@media(max-width:800px){.safety-strip{text-align:left;padding:8px 15px}.header-inner{padding:0 14px}.brand img{width:120px}.header-actions .download-btn{padding:8px 10px;font-size:13px}.hero{grid-template-columns:1fr;padding:46px 17px 32px;gap:26px}.hero h1,.inner-hero h1{font-size:38px}.hero-visual{min-height:330px}.hero-visual img{max-height:310px}.task-strip{display:flex;overflow-x:auto;margin-bottom:50px;padding:0 17px;border-bottom:0}.task{min-width:230px;border-bottom:1px solid var(--border)}.section{padding:56px 17px}.mosaic{display:block}.mosaic article{margin-bottom:13px;min-height:0}.network-stage{display:block}.network-tabs{flex-direction:row;overflow-x:auto;margin-bottom:14px}.network-tabs button{white-space:nowrap;border-left:0;border-bottom:3px solid transparent}.network-tabs button[aria-selected="true"]{border-bottom-color:var(--blue)}.network-panel{grid-template-columns:1fr;padding:20px}.steps{display:block;padding-left:24px}.steps:before{left:4px}.step:nth-child(even),.step:nth-child(odd){grid-column:auto;grid-row:auto}.process,.security-layout,.editorial,.staking{grid-template-columns:1fr}.update{grid-template-columns:1fr;gap:4px}.cta{display:block}.cta .download-btn{margin-top:16px}.inner-hero{grid-template-columns:1fr;padding:42px 17px 30px}.article-shell{display:block;padding:8px 17px 55px}.toc{display:none}.support-grid,.glossary{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}}
@media(max-width:480px){.brand img{width:106px}.hero h1,.inner-hero h1{font-size:34px}.hero-actions .download-btn{width:100%}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}