:root{--bg:#fff;--soft:#f5f8fc;--soft2:#edf4fb;--blue:#3f8fe5;--blue2:#245f9e;--deep:#153f66;--title:#16283c;--text:#43566a;--muted:#718296;--line:#dce7f2;--tag:#eaf4ff;--footer:#123958;--max:1200px;--radius:18px;--shadow:0 14px 40px rgba(21,63,102,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:112px}body{margin:0;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.72;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.skip-link{position:fixed;top:-100px;left:16px;z-index:2000;background:#fff;padding:10px;border:2px solid var(--blue)}.skip-link:focus{top:12px}.safety-strip{background:var(--soft2);color:#315776;text-align:center;padding:8px 18px;font-size:13px;border-bottom:1px solid var(--line)}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(220,231,242,.85)}.header-inner{width:min(1320px,calc(100% - 32px));height:76px;margin:auto;display:flex;align-items:center;gap:24px}.brand img,.mobile-menu-top img,.site-footer img{width:132px;display:block}.desktop-nav{display:flex;gap:2px;flex:1;justify-content:center}.mega-wrap{position:relative}.mega-trigger{height:44px;border:0;background:transparent;color:var(--title);font-size:14px;padding:0 11px;cursor:pointer}.mega-trigger:hover,.mega-trigger:focus-visible{color:var(--blue2);background:var(--soft);outline:none}.mega-menu{position:fixed;left:50%;transform:translateX(-50%);top:112px;width:min(1080px,calc(100vw - 48px));padding:26px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);display:grid;grid-template-columns:1.2fr 1.1fr .9fr;gap:30px;border-radius:12px}.mega-menu[hidden]{display:none}.mega-intro strong{font-size:21px;color:var(--title)}.mega-intro p{font-size:13px;color:var(--muted)}.mega-intro>a{color:var(--blue2);font-weight:700;font-size:13px}.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}.mega-links a,.mega-featured a{padding:9px;border-bottom:1px solid #edf1f5;color:var(--title)}.mega-links a:hover,.mega-featured a:hover{color:var(--blue2)}.mega-featured>span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}.mega-featured a{display:block}.mega-featured small{display:block;color:var(--muted);font-size:11px}.header-actions{display:flex;align-items:center;gap:10px}.lang-link{font-weight:700;color:var(--blue2);padding:8px}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;background:var(--blue2);color:#fff!important;border-radius:10px;font-weight:700;border:1px solid transparent}.download-btn:hover{background:var(--deep)}.mobile-menu-btn{display:none;width:44px;height:44px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:10px}.mobile-menu-btn span{display:block;height:2px;background:var(--title);margin:5px 0}.mobile-menu{position:fixed;z-index:1500;inset:0;background:#fff;overflow:auto;padding:18px 20px}.mobile-menu[hidden]{display:none}.mobile-menu-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:14px;border-bottom:1px solid var(--line)}.mobile-menu-top>div{display:flex;align-items:center;gap:14px}.mobile-close{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;font-size:30px}.mobile-nav-group>button{width:100%;height:52px;border:0;border-bottom:1px solid var(--line);background:#fff;display:flex;justify-content:space-between;align-items:center;font-size:17px;color:var(--title);font-weight:700}.mobile-nav-group>div a{display:block;padding:12px 16px;background:var(--soft);border-bottom:1px solid #e8eef5}.mobile-menu-bottom{display:grid;gap:8px;margin-top:24px}.mobile-menu-bottom>a:not(.download-btn){padding:10px 0}
.hero{padding:72px 0 54px;background:linear-gradient(120deg,#fff 0 60%,#f2f7fd 60% 100%)}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:64px}.eyebrow{color:var(--blue2);font-size:13px;text-transform:uppercase;letter-spacing:.12em;font-weight:700}.hero h1{font-size:clamp(40px,5.2vw,68px);line-height:1.05;letter-spacing:-.035em;color:var(--title);margin:12px 0 18px}.hero-subtitle{font-size:21px;color:var(--blue2);font-weight:700}.hero-copy{font-size:17px;max-width:720px}.hero-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:28px 0}.text-link{color:var(--blue2);font-weight:700}.hero-tags{display:flex;gap:8px;flex-wrap:wrap}.hero-tags span{background:var(--tag);border:1px solid #d6eafb;padding:7px 10px;border-radius:8px;font-size:12px;color:#315776}.hero-visual{position:relative;min-height:480px;display:grid;place-items:center}.hero-visual:before,.hero-visual:after{content:"";position:absolute;border:1px solid #cfe1f4}.hero-visual:before{inset:7% 10% 10% 6%;transform:rotate(-5deg);background:#fff}.hero-visual:after{inset:14% 3% 4% 16%;transform:rotate(4deg);background:#edf4fb}.hero-visual img{position:relative;z-index:2;max-height:480px;object-fit:contain;filter:drop-shadow(0 30px 50px rgba(21,63,102,.18))}
.task-nav{padding:44px 0;border-bottom:1px solid var(--line)}.task-row{display:grid;grid-template-columns:1.25fr .85fr 1fr .9fr 1.1fr}.task-item{padding:6px 24px 18px;border-right:1px solid var(--line)}.task-item:first-child{padding-left:0}.task-item:last-child{border-right:0}.task-item b{display:block;color:var(--blue);font-size:12px;margin-bottom:8px}.task-item h3{font-size:18px;color:var(--title);margin:0 0 6px}.task-item p{font-size:13px;color:var(--muted);margin:0 0 8px}.task-item a{font-weight:700;font-size:13px;color:var(--blue2)}
.section{padding:80px 0}.section.soft{background:var(--soft)}.section-head{display:flex;justify-content:space-between;gap:36px;align-items:end;margin-bottom:34px}.section-head h2{font-size:38px;line-height:1.15;color:var(--title);margin:0}.section-head p{max-width:600px;margin:0;color:var(--muted)}.mosaic{display:grid;grid-template-columns:1.2fr .8fr 1fr;grid-template-rows:auto auto;gap:16px}.mosaic>article{background:#fff;border:1px solid var(--line);padding:26px;border-radius:14px}.mosaic>article:nth-child(1){grid-row:span 2;background:var(--soft2)}.mosaic>article:nth-child(3){grid-column:span 2}.mosaic h3{color:var(--title);font-size:22px}.mosaic img{max-height:210px;display:block;margin:12px auto}.mosaic p{font-size:14px}.network-stage{display:grid;grid-template-columns:280px 1fr;gap:28px}.network-tabs{display:flex;flex-direction:column;gap:6px}.network-tabs button{min-height:50px;border:0;border-left:3px solid transparent;background:transparent;text-align:left;padding:10px 15px;color:var(--text);font-weight:700;cursor:pointer}.network-tabs button[aria-selected="true"]{border-left-color:var(--blue);background:#fff;color:var(--blue2)}.network-panel{background:#fff;border:1px solid var(--line);padding:34px;min-height:420px;display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}.network-panel[hidden]{display:none}.network-panel img{max-height:280px;margin:auto}.path-steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:48px 26px}.path-steps:before{content:"";position:absolute;left:8%;right:8%;top:50%;height:1px;background:var(--line)}.step{position:relative;background:#fff;padding:20px 24px;border-top:3px solid var(--blue)}.step:nth-child(even){transform:translateY(32px)}.step b{font-size:12px;color:var(--blue)}.step h3{color:var(--title)}.step p{font-size:14px}.web3-flow{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px}.flow-list{counter-reset:flow;border-left:1px solid var(--line);padding-left:28px}.flow-list li{list-style:none;position:relative;padding:9px 0 20px;color:var(--title);font-weight:700}.flow-list li:before{counter-increment:flow;content:counter(flow);position:absolute;left:-42px;top:6px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:var(--soft2);color:var(--blue2);font-size:12px}.info-note{padding:18px 20px;background:var(--tag);border-left:3px solid var(--blue2);margin-top:20px}.security-home{background:var(--deep);color:#dceafa}.security-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}.security-home h2,.security-home h3{color:#fff}.security-home img{max-height:300px;display:block;margin:auto}.security-list{display:grid;gap:10px}.security-list li{list-style:none;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.16)}.editorial-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:38px}.feature-article{border-top:4px solid var(--blue);padding-top:28px}.feature-article h3{font-size:30px;color:var(--title)}.article-index a{display:block;padding:14px 0;border-bottom:1px solid var(--line)}.article-index span{display:block;color:var(--blue2);font-size:11px;text-transform:uppercase}.staking-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.staking-grid>article{padding:28px;border:1px solid var(--line)}.updates-list{border-top:1px solid var(--line)}.update-row{display:grid;grid-template-columns:140px 1fr auto;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:center}.update-row span{font-size:12px;color:var(--muted)}.update-row h3{font-size:18px;margin:0;color:var(--title)}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-item button{width:100%;padding:18px 0;border:0;background:transparent;display:flex;justify-content:space-between;text-align:left;color:var(--title);font-size:17px;font-weight:700}.faq-answer{padding:0 0 20px}.cta{background:var(--soft2);text-align:center}.cta h2{font-size:36px;color:var(--title)}
.article-hero{padding:58px 0 44px;background:var(--soft)}.article-hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:60px;align-items:end}.breadcrumb{font-size:12px;color:var(--muted);display:flex;gap:8px}.article-hero h1{font-size:clamp(38px,5vw,58px);line-height:1.08;color:var(--title);margin:12px 0}.lead{font-size:18px}.principle-box{background:#fff;border-left:4px solid var(--blue);padding:24px;box-shadow:0 8px 28px rgba(21,63,102,.06)}.principle-box strong{color:var(--title)}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:54px;padding-top:54px;padding-bottom:80px}.article-body>section{padding:10px 0 28px;border-bottom:1px solid #edf1f5}.article-body h2{font-size:28px;color:var(--title);margin-top:28px}.article-body h3{color:var(--blue2);font-size:19px}.article-body p{font-size:16px}.toc{position:sticky;top:130px;align-self:start;border-left:1px solid var(--line);padding-left:20px}.toc strong{display:block;color:var(--title);margin-bottom:12px}.toc a{display:block;padding:7px 0;font-size:13px;color:var(--muted)}.toc a.active{color:var(--blue2);font-weight:700}.prep,.product-strip,.security-callout,.risk-note{background:var(--soft);padding:24px!important;border:1px solid var(--line)!important}.product-strip{display:flex;align-items:center;justify-content:space-between;gap:20px}.check-list,.security-callout ul,.risk-note ul{padding-left:20px}.related-links{display:flex;gap:12px;flex-wrap:wrap}.related-links a{background:var(--tag);padding:9px 12px;color:var(--blue2);border-radius:8px}.site-footer{background:var(--footer);color:#cfe0ef;padding:56px 0 20px}.footer-grid{width:min(var(--max),calc(100% - 40px));margin:auto;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:44px}.site-footer h3{color:#fff;font-size:15px}.site-footer a{display:block;padding:5px 0;font-size:13px}.footer-brand p{font-size:13px}.footer-safety{color:#fff}.footer-bottom{width:min(var(--max),calc(100% - 40px));margin:35px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#afc7da}.footer-bottom a{display:inline}
@media(max-width:1100px){.desktop-nav{display:none}.mobile-menu-btn{display:block}.header-inner{height:68px}.hero-grid,.article-hero-grid,.security-grid,.web3-flow{grid-template-columns:1fr}.hero-visual{min-height:350px}.task-row{grid-template-columns:repeat(2,1fr)}.task-item{border-bottom:1px solid var(--line)}.mosaic{grid-template-columns:1fr 1fr}.mosaic>article:nth-child(1){grid-row:auto}.mosaic>article:nth-child(3){grid-column:span 2}.network-stage{grid-template-columns:1fr}.network-tabs{flex-direction:row;overflow-x:auto;padding-bottom:4px}.network-tabs button{min-width:max-content;border-left:0;border-bottom:3px solid transparent}.network-tabs button[aria-selected="true"]{border-bottom-color:var(--blue)}.article-shell{grid-template-columns:1fr}.toc{position:relative;top:auto;order:-1;background:var(--soft);padding:18px;border-left:0}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:720px){.container{width:min(100% - 28px,var(--max))}.safety-strip{text-align:left;font-size:12px}.header-actions .download-btn{padding:0 12px}.hero{padding:44px 0;background:linear-gradient(180deg,#fff 0 58%,#f2f7fd 58%)}.hero-grid{gap:18px}.hero h1{font-size:40px}.hero-subtitle{font-size:17px}.hero-copy{font-size:15px}.hero-visual{min-height:300px}.hero-visual img{max-height:320px}.task-row{grid-template-columns:1fr}.task-item{padding:16px 0;border-right:0}.section{padding:58px 0}.section-head{display:block}.section-head h2{font-size:30px;margin-bottom:12px}.mosaic{display:block}.mosaic>article{margin-bottom:12px}.network-panel{grid-template-columns:1fr;padding:22px}.path-steps{display:block;padding-left:24px}.path-steps:before{left:8px;top:0;bottom:0;width:1px;height:auto}.step,.step:nth-child(even){transform:none;margin-bottom:15px}.editorial-grid,.staking-grid{grid-template-columns:1fr}.update-row{grid-template-columns:1fr;gap:4px}.article-hero{padding-top:38px}.article-hero h1{font-size:38px}.article-shell{padding-top:28px}.article-body h2{font-size:24px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin:8px 0}.brand img,.mobile-menu-top img,.site-footer img{width:118px}}
@media(max-width:390px){.lang-link{display:none}.header-inner{gap:10px}.hero h1{font-size:35px}.download-btn{font-size:13px}}