:root{--blue:#3f8fe5;--blue-dark:#245f9e;--ink:#16283c;--text:#43566a;--muted:#718296;--line:#dce7f2;--soft:#f5f8fc;--soft2:#edf4fb;--footer:#163f69;--shadow:0 16px 42px rgba(42,93,145,.10);--radius:22px;--container:min(1180px,calc(100% - 40px));}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.72;overflow-x:hidden}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,a{touch-action:manipulation}button{font:inherit}.container{width:var(--container);margin-inline:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;left:16px;top:-60px;z-index:9999;background:#fff;padding:10px 14px;border-radius:8px;box-shadow:var(--shadow)}.skip-link:focus{top:16px}.security-strip{min-height:34px;display:flex;align-items:center;justify-content:center;padding:5px 20px;text-align:center;background:#eaf4ff;color:#245f9e;font-size:13px}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,231,242,.9)}.header-inner{width:var(--container);height:76px;margin:auto;display:flex;align-items:center;gap:28px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:20px;letter-spacing:-.02em}.brand img{width:38px;height:38px;object-fit:contain}.desktop-nav{margin-left:auto;display:flex;align-items:center;height:100%;gap:4px}.nav-group{height:100%;display:flex;align-items:center;position:relative}.nav-trigger,.nav-about{height:44px;padding:0 15px;border:0;background:transparent;color:#31485f;font-weight:650;border-radius:10px;cursor:pointer;display:flex;align-items:center}.nav-trigger:hover,.nav-trigger:focus-visible,.nav-about:hover,.nav-about:focus-visible,.nav-group.is-current .nav-trigger,.nav-about.is-current{background:#edf4fb;color:var(--blue-dark);outline:none}.nav-group.is-current:after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;background:var(--blue);border-radius:3px 3px 0 0}.mega-menu{position:fixed;top:110px;left:50%;transform:translateX(-50%);width:min(1060px,calc(100% - 48px));padding:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 24px 24px;display:grid;grid-template-columns:1fr 2.2fr;gap:34px}.mega-menu[hidden]{display:none}.mega-intro{background:var(--soft);border-radius:18px;padding:24px}.eyebrow{display:inline-block;color:var(--blue-dark);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.mega-intro p{margin:8px 0 18px}.mega-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.mega-links a{padding:16px;border:1px solid var(--line);border-radius:14px;transition:.2s}.mega-links a:hover,.mega-links a:focus-visible{border-color:#9fc8ef;transform:translateY(-2px);outline:none}.mega-links strong{display:block;color:var(--ink);margin-bottom:2px}.mega-links span{font-size:13px;color:var(--muted)}.header-actions{display:flex;align-items:center;gap:10px}.download-btn{min-height:44px;padding:0 20px;border-radius:11px;background:var(--blue);color:#fff;font-weight:750;display:inline-flex;align-items:center;justify-content:center;box-shadow:0 10px 20px rgba(63,143,229,.22);position:relative;z-index:1}.download-btn:hover,.download-btn:focus-visible{background:#2d7fd2;outline:3px solid rgba(63,143,229,.22);outline-offset:2px}.menu-toggle{display:none;width:46px;height:46px;border:1px solid var(--line);background:#fff;border-radius:11px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}.menu-toggle span:not(.sr-only){width:20px;height:2px;background:var(--ink);border-radius:2px}.mobile-menu{position:fixed;inset:0;z-index:3000;background:#fff;overflow:auto}.mobile-menu[hidden]{display:none}.menu-open{overflow:hidden}.mobile-menu-head{height:76px;padding:0 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.mobile-close{width:46px;height:46px;border:1px solid var(--line);background:#fff;border-radius:12px;font-size:30px;color:var(--ink);cursor:pointer}.mobile-menu-body{padding:12px 20px}.mobile-nav-group{border-bottom:1px solid var(--line)}.mobile-group-toggle{width:100%;min-height:56px;border:0;background:#fff;display:flex;align-items:center;justify-content:space-between;color:var(--ink);font-weight:750;text-align:left;cursor:pointer}.mobile-submenu{padding:0 0 14px 14px}.mobile-submenu[hidden]{display:none}.mobile-submenu a{display:block;padding:10px 0;color:var(--text)}.mobile-menu-foot{padding:20px;display:grid;gap:12px;background:var(--soft)}
main{min-height:50vh}h1,h2,h3{color:var(--ink);line-height:1.18;letter-spacing:-.025em;margin-top:0}h1{font-size:clamp(38px,5.2vw,72px);margin-bottom:22px}h2{font-size:clamp(28px,3.5vw,46px);margin-bottom:18px}h3{font-size:20px;margin-bottom:8px}p{margin:0 0 16px}.lead{font-size:clamp(17px,1.7vw,21px);color:#526a81;max-width:760px}.text-link{display:inline-flex;align-items:center;color:var(--blue-dark);font-weight:750}.text-link:hover,.text-link:focus-visible{text-decoration:underline;outline:none}.text-link.light{color:#ddecff}.section{padding:90px 0}.section-soft{background:var(--soft)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}.section-head p{max-width:620px;color:var(--muted)}
.hero{padding:72px 0 82px}.home-hero-grid{display:grid;grid-template-columns:.82fr 1.18fr;align-items:center;gap:72px}.hero-visual{background:linear-gradient(145deg,#edf6ff,#dbeeff);border-radius:34px;padding:34px;min-height:520px;display:flex;align-items:center;justify-content:center;position:relative}.hero-visual:before{content:"";position:absolute;width:140px;height:140px;border-radius:50%;border:22px solid rgba(255,255,255,.6);right:8%;top:8%}.hero-copy{padding:18px 0}.hero-subtitle{font-weight:800;color:var(--blue-dark);margin-bottom:14px}.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}.hero-tags span,.tag{padding:7px 11px;border-radius:9px;background:#eaf4ff;color:#245f9e;font-size:13px;font-weight:700}.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:28px 0 24px}.hero-links{display:flex;flex-wrap:wrap;gap:20px}.hero-links a{color:#3c607f;font-weight:650}.hero-links a:hover{text-decoration:underline}
.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:30px 24px;border-right:1px solid var(--line)}.task-item:last-child{border-right:0}.task-number{font-size:13px;font-weight:800;color:var(--blue);margin-bottom:24px}.task-item p{font-size:14px;color:var(--muted)}
.bento{display:grid;grid-template-columns:1.3fr .9fr .9fr;grid-template-rows:auto auto;gap:18px}.bento-item{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;min-height:220px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden}.bento-item:hover{box-shadow:var(--shadow)}.bento-large{grid-row:span 2;background:var(--soft)}.bento-wide{grid-column:span 2;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;background:#edf4fb}.bento-item img{max-height:250px;object-fit:contain;margin:20px auto 0}.bento-wide img{margin:0 auto;max-height:220px}.bento-narrow{background:#f9fbfd}.bento-item p{color:var(--muted)}
.process-line{display:grid;grid-template-columns:repeat(6,1fr);position:relative;gap:0}.process-line:before{content:"";position:absolute;left:7%;right:7%;top:30px;height:1px;background:#b9cee2}.process-step{position:relative;padding:0 14px}.process-dot{width:60px;height:60px;border-radius:50%;background:#fff;border:1px solid #9ec4e9;display:flex;align-items:center;justify-content:center;color:var(--blue-dark);font-weight:800;margin-bottom:20px;position:relative;z-index:1}.process-step:nth-child(even){padding-top:46px}.process-step:nth-child(even) .process-dot{margin-top:-46px}.process-step p{font-size:14px;color:var(--muted)}
.tabs-wrap{border:1px solid var(--line);border-radius:26px;background:#fff;overflow:hidden}.tab-list{display:flex;gap:4px;padding:12px;border-bottom:1px solid var(--line);overflow-x:auto}.tab-list button{border:0;background:transparent;padding:12px 18px;border-radius:10px;white-space:nowrap;color:var(--text);font-weight:700;cursor:pointer}.tab-list button[aria-selected="true"]{background:#eaf4ff;color:var(--blue-dark)}.tab-panel{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:54px;padding:42px}.tab-panel[hidden]{display:none}.tab-panel img{max-height:320px;margin:auto;object-fit:contain}
.safety-band{background:var(--blue-dark);color:#dcecff}.safety-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}.safety-band h2,.safety-band h3{color:#fff}.safety-visual{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:center}.safety-visual img{max-height:300px;filter:drop-shadow(0 15px 30px rgba(0,0,0,.14))}.check-list{list-style:none;padding:0;margin:0}.check-list li{padding:13px 0 13px 30px;border-bottom:1px solid rgba(255,255,255,.15);position:relative}.check-list li:before{content:"✓";position:absolute;left:0;color:#bfe2ff;font-weight:900}
.editorial{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.feature-article{background:#edf4fb;border-radius:26px;padding:42px;min-height:420px;display:flex;flex-direction:column;justify-content:flex-end}.article-list{border-top:1px solid var(--line)}.article-row{display:block;padding:18px 0;border-bottom:1px solid var(--line)}.article-row span{font-size:12px;color:var(--blue-dark);font-weight:800}.article-row h3{font-size:18px;margin:5px 0}.article-row p{font-size:14px;color:var(--muted);margin:0}
.compare{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}.compare-app{background:#eef6ff;border-radius:26px;padding:34px;display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:center}.compare-app img{max-height:340px;margin:auto}.compare-web{padding:40px;border:1px solid var(--line);border-radius:26px}.plain-list{padding-left:20px}.plain-list li{margin-bottom:10px}.staking-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.knowledge-panel,.risk-panel{padding:38px;border-radius:24px}.knowledge-panel{background:#edf4fb}.risk-panel{border:1px solid var(--line)}.timeline{position:relative;padding-left:28px}.timeline:before{content:"";position:absolute;left:7px;top:5px;bottom:5px;width:1px;background:#a8c7e6}.timeline-item{position:relative;padding:0 0 30px 26px}.timeline-item:before{content:"";position:absolute;left:-26px;top:8px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--blue)}.timeline-item h3{margin:4px 0 8px}.timeline-type{color:var(--blue-dark);font-size:12px;font-weight:850}.faq-group{margin-bottom:46px}.faq-group h2{font-size:28px;margin-bottom:14px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;min-height:64px;padding:18px 6px;border:0;background:#fff;display:flex;justify-content:space-between;align-items:center;text-align:left;color:var(--ink);font-weight:750;cursor:pointer}.faq-question:after{content:"＋";font-size:22px;color:var(--blue-dark)}.faq-question[aria-expanded="true"]:after{content:"−"}.faq-answer{padding:0 44px 22px 6px;color:var(--muted)}.faq-answer[hidden]{display:none}
.page-hero{padding:66px 0 46px;background:linear-gradient(180deg,#f7fbff,#fff)}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:20px}.breadcrumbs a{color:var(--blue-dark)}.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}.page-hero-visual{border-radius:28px;background:#edf4fb;padding:28px;min-height:310px;display:flex;align-items:center;justify-content:center}.page-hero-visual img{max-height:330px;object-fit:contain}.center-hero-product .page-hero-visual{background:#eef6ff}.center-hero-networks .page-hero-visual{background:#eff8f9}.center-hero-security{background:linear-gradient(180deg,#edf6ff,#fff)}.center-hero-academy .page-hero-visual{background:#f7f3ff}.center-hero-service .page-hero-visual{background:#fff6eb}.center-icon{width:220px;height:220px;border-radius:44px;background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;font-size:80px;color:var(--blue-dark)}
.article-layout{width:var(--container);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:70px;padding:66px 0 92px}.article-body h2{scroll-margin-top:120px;margin-top:54px;padding-top:4px}.article-body h2:first-child{margin-top:0}.article-body h3{margin-top:28px}.article-body p,.article-body li{font-size:16px}.article-body ul,.article-body ol{padding-left:22px}.article-body li{margin-bottom:9px}.callout{margin:34px 0;padding:24px 26px;background:#edf4fb;border-left:4px solid var(--blue);border-radius:0 16px 16px 0}.callout strong{display:block;color:var(--ink);margin-bottom:6px}.risk-note{margin-top:44px;padding:26px;border:1px solid #bfd7ee;border-radius:18px;background:#f8fbff}.related{margin-top:48px}.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.related a{display:block;padding:18px;border:1px solid var(--line);border-radius:14px;color:var(--ink);font-weight:700}.article-toc{position:sticky;top:112px;align-self:start;padding:20px;border:1px solid var(--line);border-radius:18px}.article-toc h2{font-size:16px;margin-bottom:12px}.article-toc-list{display:grid}.article-toc-list a{padding:8px 10px;border-left:2px solid var(--line);font-size:14px;color:var(--muted)}.article-toc-list a.is-active{border-color:var(--blue);color:var(--blue-dark);background:#f1f7fd}.mobile-toc{display:none}.content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.content-tile{padding:26px;border:1px solid var(--line);border-radius:18px;background:#fff}.content-tile p{font-size:14px;color:var(--muted)}
.final-cta{padding:68px 0;background:#2e79bd;color:#dceeff}.final-cta h2{color:#fff;margin-bottom:12px}.final-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}.download-btn-light{background:#fff;color:#245f9e;box-shadow:none;min-width:145px}.download-btn-light:hover,.download-btn-light:focus-visible{background:#edf6ff;color:#164e82}.site-footer{background:var(--footer);color:#dcecff;padding:62px 0 24px}.footer-grid{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:48px}.brand-light{color:#fff}.footer-grid h3{color:#fff;font-size:15px}.footer-grid>div>a:not(.brand){display:block;color:#c5d9ec;padding:5px 0}.footer-brand p{max-width:340px}.footer-risk{font-size:13px;color:#a9c4dc}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:18px;font-size:13px;color:#a9c4dc}.footer-bottom a{color:#fff}
@media(max-width:980px){.desktop-nav{display:none}.menu-toggle{display:flex}.header-inner{gap:12px}.header-actions{margin-left:auto}.home-hero-grid,.page-hero-grid,.safety-grid{grid-template-columns:1fr}.hero-copy{order:-1}.hero-visual{min-height:420px}.task-grid{grid-template-columns:repeat(2,1fr)}.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{grid-row:auto;grid-column:span 2}.bento-wide{grid-column:span 2}.process-line{grid-template-columns:repeat(3,1fr);gap:34px}.process-line:before{display:none}.process-step,.process-step:nth-child(even){padding:0}.process-step:nth-child(even) .process-dot{margin-top:0}.editorial,.compare,.staking-grid{grid-template-columns:1fr}.compare-app{grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr}.article-toc{display:none}.mobile-toc{display:block;margin:0 0 28px}.mobile-toc summary{cursor:pointer;color:var(--ink);font-weight:750}.mobile-toc a{display:block;padding:8px 0;color:var(--blue-dark)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}.content-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){:root{--container:min(100% - 28px,1180px)}.security-strip{font-size:12px;line-height:1.45}.header-inner{height:68px}.brand span{font-size:18px}.brand img{width:34px;height:34px}.header-actions>.download-btn{padding:0 13px}.section{padding:66px 0}.hero{padding:48px 0 60px}.home-hero-grid{gap:34px}.hero-visual{min-height:340px;padding:22px}.hero-links{gap:12px 18px}.task-grid{grid-template-columns:1fr}.task-item{border-right:0;border-bottom:1px solid var(--line)}.task-item:last-child{border-bottom:0}.bento{grid-template-columns:1fr}.bento-large,.bento-wide{grid-column:auto}.bento-wide{display:flex}.bento-item{min-height:0}.process-line{grid-template-columns:1fr;padding-left:20px;gap:0}.process-line:before{display:block;left:29px;right:auto;top:10px;bottom:10px;width:1px;height:auto}.process-step{display:grid;grid-template-columns:60px 1fr;gap:18px;padding-bottom:28px}.process-step .process-dot{margin:0}.tab-panel{grid-template-columns:1fr;padding:28px 22px;gap:26px}.safety-visual{grid-template-columns:1fr}.editorial{gap:16px}.feature-article{padding:28px;min-height:330px}.compare-app{grid-template-columns:1fr}.page-hero{padding:44px 0 30px}.page-hero-grid{gap:28px}.page-hero-visual{min-height:230px}.article-layout{padding:42px 0 68px}.related-grid,.content-grid{grid-template-columns:1fr}.final-cta-inner{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr;gap:32px}.footer-brand{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{flex-direction:column}.section-head{align-items:flex-start;flex-direction:column}.header-actions{gap:7px}.menu-toggle{width:44px;height:44px}}