:root{--blue:#3f8fe5;--blue-dark:#245f9e;--ink:#16283c;--body:#43566a;--muted:#718296;--line:#dce7f2;--soft:#f5f8fc;--soft2:#edf4fb;--tag:#eaf4ff;--footer:#163f69;--shadow:0 16px 42px rgba(42,93,145,.10);--radius:24px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--body);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.72;overflow-x:hidden}body.menu-open{overflow:hidden}img,svg{max-width:100%;height:auto}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible{outline:3px solid rgba(63,143,229,.45);outline-offset:3px}button,a{touch-action:manipulation}.skip-link{position:fixed;left:16px;top:-80px;z-index:2000;background:#fff;padding:10px 16px;border-radius:10px;box-shadow:var(--shadow)}.skip-link:focus{top:16px}.security-strip{min-height:34px;padding:7px 24px;text-align:center;background:#edf4fb;color:#35536f;font-size:13px}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(220,231,242,.9)}.header-inner{max-width:var(--max);height:72px;margin:auto;padding:0 24px;display:flex;align-items:center;gap:26px}.brand{display:inline-flex;align-items:center;position:relative;z-index:3}.brand img{width:142px;height:auto;display:block}.desktop-nav{display:flex;align-self:stretch;gap:2px;flex:1;justify-content:center}.nav-item{display:flex;align-items:center;position:relative}.nav-toggle,.nav-about{height:100%;min-width:68px;padding:0 15px;border:0;background:transparent;color:#30465d;font:inherit;font-weight:650;cursor:pointer;position:relative}.nav-item.is-active .nav-toggle,.nav-about.is-active{color:var(--blue-dark)}.nav-item.is-active .nav-toggle:after,.nav-about.is-active:after{content:"";position:absolute;left:18px;right:18px;bottom:0;height:3px;border-radius:3px;background:var(--blue)}.mega-menu{position:fixed;left:50%;top:106px;transform:translateX(-50%);width:min(calc(100vw - 48px),1080px);padding:28px 30px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 22px 22px;display:grid;grid-template-columns:1.1fr 2fr .95fr;gap:28px;z-index:1200}.mega-menu[hidden]{display:none}.mega-intro{border-right:1px solid var(--line);padding-right:24px}.mega-title{font-size:20px;font-weight:800;color:var(--ink)}.mega-intro p{margin:8px 0 0;font-size:14px;color:var(--muted)}.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}.mega-links a{padding:9px 10px;border-radius:9px}.mega-links a:hover{background:var(--soft2);color:var(--blue-dark)}.mega-featured{align-self:stretch;padding:18px;border-radius:16px;background:var(--soft2);font-weight:700;color:var(--blue-dark)}.mega-featured span{display:block;margin-bottom:14px;color:var(--muted);font-size:12px;font-weight:700;text-transform:uppercase}.header-actions{display:flex;align-items:center;gap:10px}.download-btn,.primary-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;border-radius:12px;background:var(--blue);color:#fff!important;font-weight:750;position:relative;z-index:2}.primary-btn{color:#fff}.download-btn:hover,.primary-btn:hover{background:#2d7fd2}.menu-button{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:11px;align-items:center;justify-content:center;flex-direction:column;gap:5px}.menu-button span{width:19px;height:2px;background:var(--ink)}.mobile-menu{position:fixed;inset:0;background:#fff;z-index:1500;padding:18px 22px 28px;overflow-y:auto}.mobile-menu[hidden]{display:none}.mobile-menu-head{display:flex;align-items:center;justify-content:space-between}.mobile-close{width:44px;height:44px;border:0;background:var(--soft);border-radius:11px;font-size:28px}.mobile-groups{margin:28px 0}.mobile-group{border-bottom:1px solid var(--line)}.mobile-group-toggle{width:100%;min-height:56px;border:0;background:transparent;font:inherit;font-size:18px;font-weight:800;color:var(--ink);display:flex;justify-content:space-between;align-items:center;padding:6px 0}.mobile-group-links{padding:0 0 16px;display:grid;grid-template-columns:1fr 1fr;gap:4px 14px}.mobile-group-links[hidden]{display:none}.mobile-group-links a{padding:10px 0;color:#52677c}.mobile-menu-foot{display:flex;flex-wrap:wrap;gap:16px 24px;align-items:center}.mobile-menu-foot .download-btn{width:100%}
main{min-height:50vh}.container{width:min(calc(100% - 48px),var(--max));margin-inline:auto}.section{padding:88px 0}.section-soft{background:var(--soft)}.section-head{max-width:760px;margin-bottom:36px}.eyebrow{display:inline-block;margin-bottom:10px;color:var(--blue-dark);font-weight:800;font-size:13px;letter-spacing:.08em}.section h2,.section-head h2{margin:0;color:var(--ink);font-size:clamp(28px,3.3vw,44px);line-height:1.2}.section-head p{font-size:17px}.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--blue-dark);font-weight:750}.pill-row{display:flex;flex-wrap:wrap;gap:9px}.pill{padding:7px 11px;border-radius:9px;background:var(--tag);font-size:13px;color:#355a7d;font-weight:700}.hero{padding:70px 0 64px}.hero-grid{display:grid;grid-template-columns:42% 58%;align-items:center;gap:48px}.hero-visual{background:linear-gradient(160deg,#f5f8fc,#eaf4ff);border-radius:38px;padding:28px 34px;min-height:520px;display:flex;align-items:center;justify-content:center}.hero-visual img{max-height:500px;object-fit:contain}.hero-copy h1{margin:10px 0 18px;font-size:clamp(42px,5vw,66px);line-height:1.07;letter-spacing:-.03em;color:var(--ink)}.hero-copy .subtitle{font-size:18px;color:var(--blue-dark);font-weight:800}.hero-copy .lead{font-size:17px;max-width:720px}.hero-actions{display:flex;align-items:center;gap:18px;margin:28px 0}.hero-minilinks{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:22px}.hero-minilinks a{color:#355a7d;font-weight:700}.task-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.task-item{padding:32px 28px 34px;border-right:1px solid var(--line)}.task-item:last-child{border-right:0}.task-num{color:#9bbce0;font-size:13px;font-weight:900;letter-spacing:.12em}.task-item h2{font-size:20px;margin:12px 0 8px;color:var(--ink)}.task-item p{font-size:14px;min-height:72px}.bento{display:grid;grid-template-columns:1.35fr .8fr .8fr;grid-auto-rows:minmax(230px,auto);gap:18px}.bento-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;overflow:hidden;position:relative;box-shadow:0 8px 30px rgba(42,93,145,.05)}.bento-item h3{font-size:23px;color:var(--ink);margin:0 0 8px}.bento-large{grid-row:span 2;background:var(--soft2)}.bento-wide{grid-column:span 2;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;background:#f8fbfe}.bento-tall{grid-row:span 2}.bento-visual{margin-top:18px;display:flex;justify-content:center}.bento-visual img{max-height:285px;object-fit:contain}.steps{display:grid;grid-template-columns:repeat(6,1fr);position:relative;gap:10px}.steps:before{content:"";position:absolute;left:6%;right:6%;top:31px;height:1px;background:#b8cfe6}.step{position:relative;padding-top:70px}.step-number{position:absolute;top:8px;left:0;width:46px;height:46px;border:1px solid #9bbce0;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--blue-dark);font-weight:900;z-index:1}.step h3{font-size:17px;color:var(--ink);line-height:1.35}.step p{font-size:13.5px}.network-tabs{border:1px solid var(--line);border-radius:26px;overflow:hidden;background:#fff}.tab-list{display:flex;gap:4px;padding:12px;overflow-x:auto;border-bottom:1px solid var(--line)}.tab-list button{flex:0 0 auto;border:0;background:transparent;padding:11px 17px;border-radius:10px;font:inherit;font-weight:750;color:#52677c}.tab-list button[aria-selected="true"]{background:var(--tag);color:var(--blue-dark)}.tab-panel{padding:34px}.tab-panel[hidden]{display:none}.tab-content{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}.tab-content img{max-height:270px;margin:auto;display:block}.safety-band{background:var(--blue-dark);color:#eaf4ff;padding:82px 0}.safety-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:58px;align-items:center}.safety-band h2{color:#fff;font-size:clamp(32px,4vw,48px);line-height:1.15}.safety-band .primary-btn{background:#fff;color:var(--blue-dark)!important}.safety-visual{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:26px;padding:24px}.safety-visual img{filter:brightness(1.03)}.check-list{list-style:none;padding:0;margin:22px 0 0}.check-list li{padding:10px 0 10px 30px;position:relative}.check-list li:before{content:"✓";position:absolute;left:0;font-weight:900}.editorial{display:grid;grid-template-columns:1.15fr .85fr;gap:54px}.feature-article{padding-right:40px;border-right:1px solid var(--line)}.feature-article h3{font-size:36px;line-height:1.2;color:var(--ink)}.article-list{display:grid}.article-row{padding:18px 0;border-bottom:1px solid var(--line)}.article-row .tag{font-size:12px;color:var(--blue-dark);font-weight:800}.article-row h3{margin:4px 0 4px;color:var(--ink);font-size:18px}.article-row p{margin:0;font-size:14px}.compare{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:stretch}.compare-app{background:var(--soft2);padding:34px;border-radius:28px;display:grid;grid-template-columns:1fr .9fr;gap:22px;align-items:center}.compare-web{border-left:3px solid var(--blue);padding:26px 8px 26px 30px}.compare h3{font-size:28px;color:var(--ink)}.mini-phone{aspect-ratio:3/4;max-width:220px;margin:auto;border-radius:32px;border:10px solid var(--ink);background:#fff;padding:22px;display:flex;flex-direction:column;gap:14px}.mini-phone span{display:block;height:44px;border-radius:10px;background:#edf4fb}.staking-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px}.knowledge-panel,.risk-panel{padding:32px;border-radius:24px}.knowledge-panel{background:var(--soft)}.risk-panel{border:1px solid var(--line)}.plain-list{padding-left:20px}.plain-list li{margin:7px 0}.timeline{position:relative;margin-left:12px}.timeline:before{content:"";position:absolute;left:9px;top:10px;bottom:10px;width:1px;background:#bdd1e5}.timeline-item{position:relative;padding:0 0 34px 48px}.timeline-dot{position:absolute;left:0;top:7px;width:19px;height:19px;background:#fff;border:5px solid var(--blue);border-radius:50%}.timeline-meta{color:var(--blue-dark);font-size:12px;font-weight:850}.timeline-item h3{margin:5px 0;color:var(--ink)}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;min-height:66px;background:transparent;border:0;text-align:left;padding:16px 46px 16px 0;font:inherit;font-weight:800;color:var(--ink);position:relative}.faq-question:after{content:"＋";position:absolute;right:4px}.faq-question[aria-expanded="true"]:after{content:"−"}.faq-answer{padding:0 50px 22px 0}.faq-answer[hidden]{display:none}.final-cta{padding:72px 0}.cta-box{border-radius:32px;background:var(--soft2);padding:46px 52px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-box h2{font-size:34px;color:var(--ink);margin:0}.cta-actions{display:flex;gap:18px;align-items:center;flex:0 0 auto}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:20px}.breadcrumbs a{color:#526f8a}.page-hero{padding:58px 0 46px;border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(38px,5vw,58px);color:var(--ink);margin:6px 0 16px;line-height:1.08}.page-hero p{font-size:18px;max-width:860px}.page-hero.visual-right .page-hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center}.page-hero-visual{background:var(--soft2);border-radius:26px;padding:20px;text-align:center}.page-hero-visual img{max-height:310px;object-fit:contain}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:64px;padding:58px 0 86px}.article-content section{scroll-margin-top:110px;padding-bottom:28px;margin-bottom:28px;border-bottom:1px solid #edf2f7}.article-content h2{font-size:30px;line-height:1.25;color:var(--ink);margin:0 0 14px}.article-content h3{color:var(--ink);margin-top:22px}.article-content p{margin:0 0 14px}.callout{padding:20px 22px;border-left:4px solid var(--blue);background:var(--soft2);border-radius:0 14px 14px 0;margin:24px 0}.callout strong{color:var(--ink)}.risk-note{padding:22px;border:1px solid #cbdceb;background:#f8fbfe;border-radius:16px}.related{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}.related a{padding:16px;border:1px solid var(--line);border-radius:14px;font-weight:700;color:#355a7d}.toc-wrap{position:relative}.toc{position:sticky;top:110px;padding:18px;border-left:1px solid var(--line)}.toc h2{font-size:13px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin:0 0 12px}.toc a{display:block;padding:7px 0;color:#6b7f91;font-size:14px}.toc a.current{color:var(--blue-dark);font-weight:800}.mobile-toc{display:none}.overview-hero{padding:66px 0}.overview-grid{display:grid;gap:26px}.overview-grid.split{grid-template-columns:1.1fr .9fr}.overview-grid.offset{grid-template-columns:.75fr 1.25fr;align-items:end}.overview-grid.stack{max-width:900px}.overview-grid h1{font-size:clamp(42px,5vw,62px);line-height:1.08;color:var(--ink);margin:0}.overview-panel{padding:30px;border-radius:26px;background:var(--soft2)}.overview-statements{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}.overview-statement{padding:20px;border-top:2px solid var(--blue);background:#fff}.overview-statement h2{font-size:18px;color:var(--ink)}.overview-link-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.overview-link{padding:22px;border:1px solid var(--line);border-radius:18px}.overview-link h3{margin:0 0 8px;color:var(--ink)}.support-steps{counter-reset:item}.support-step{counter-increment:item;padding:22px 0 22px 56px;border-bottom:1px solid var(--line);position:relative}.support-step:before{content:counter(item,decimal-leading-zero);position:absolute;left:0;top:22px;color:#9bbce0;font-weight:900}.glossary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.term{padding:20px;border:1px solid var(--line);border-radius:16px}.term h3{margin:0;color:var(--ink)}.news-filter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.news-filter span{padding:7px 11px;border-radius:8px;background:var(--tag);color:var(--blue-dark);font-size:13px;font-weight:800}
.site-footer{background:var(--footer);color:#eaf4ff;padding:58px 0 22px}.footer-grid{width:min(calc(100% - 48px),var(--max));margin:auto;display:grid;grid-template-columns:1.5fr repeat(3,.72fr);gap:42px}.site-footer .brand img{filter:brightness(0) invert(1);opacity:.95}.footer-grid h2{font-size:14px;color:#fff;margin:0 0 16px}.footer-grid>div>a:not(.brand){display:block;padding:5px 0;color:#d6e8fa;font-size:14px}.footer-brand p{font-size:14px;max-width:360px}.footer-risk{color:#b9d2eb}.footer-bottom{width:min(calc(100% - 48px),var(--max));margin:36px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:20px;color:#bad2e9;font-size:12px}
@media (max-width:959px){.desktop-nav{display:none}.menu-button{display:flex}.header-inner{height:66px;padding:0 16px;gap:12px}.brand img{width:124px}.header-actions{margin-left:auto}.header-actions .download-btn{padding-inline:14px}.security-strip{padding-inline:14px;font-size:12px}.container{width:min(calc(100% - 32px),var(--max))}.section{padding:66px 0}.hero{padding:50px 0}.hero-grid{grid-template-columns:1fr;gap:32px}.hero-copy{order:1}.hero-visual{order:2;min-height:auto;padding:22px}.hero-visual img{max-height:480px}.task-grid{grid-template-columns:1fr 1fr}.task-item:nth-child(2){border-right:0}.task-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.bento{grid-template-columns:1fr 1fr}.bento-large,.bento-tall{grid-row:span 1}.bento-wide{grid-column:span 2}.steps{grid-template-columns:1fr 1fr 1fr;gap:24px}.steps:before{display:none}.step{padding-top:55px}.tab-content,.safety-grid,.editorial,.compare,.staking-grid,.article-layout,.page-hero.visual-right .page-hero-inner,.overview-grid.split,.overview-grid.offset{grid-template-columns:1fr}.feature-article{border-right:0;border-bottom:1px solid var(--line);padding:0 0 28px}.compare-app{grid-template-columns:1fr 1fr}.article-layout{gap:20px}.toc-wrap{display:none}.mobile-toc{display:block;margin:24px 0}.mobile-toc summary{cursor:pointer;font-weight:800;color:var(--ink)}.related{grid-template-columns:1fr 1fr}.overview-statements{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{flex-wrap:wrap}.cta-box{align-items:flex-start;flex-direction:column}.mega-menu{top:100px}}
@media (max-width:620px){.security-strip{text-align:left;line-height:1.4}.site-header .brand img{width:108px}.header-actions{gap:6px}.header-actions .download-btn,.primary-btn{min-height:44px;padding:8px 12px;font-size:14px}.hero-copy h1{font-size:42px}.hero-actions{align-items:flex-start;flex-direction:column}.hero-minilinks{flex-direction:column}.task-grid{grid-template-columns:1fr}.task-item,.task-item:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.task-item p{min-height:0}.bento{grid-template-columns:1fr}.bento-wide{grid-column:span 1;grid-template-columns:1fr}.steps{grid-template-columns:1fr;border-left:1px solid #b8cfe6;margin-left:22px;padding-left:25px}.step{padding-top:0;padding-bottom:22px}.step-number{left:-49px;top:1px;width:46px}.tab-panel{padding:24px 18px}.tab-content{gap:20px}.safety-grid{gap:32px}.feature-article h3{font-size:29px}.compare-app{grid-template-columns:1fr}.mini-phone{display:none}.related,.overview-statements,.overview-link-grid,.glossary-grid{grid-template-columns:1fr}.page-hero{padding-top:42px}.page-hero h1{font-size:38px}.article-layout{padding-top:34px}.article-content h2{font-size:26px}.cta-box{padding:32px 24px}.cta-actions{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column}.mobile-group-links{grid-template-columns:1fr}.section{padding:56px 0}}