:root{--blue:#3f8fe5;--blue-dark:#245f9e;--ink:#16283c;--text:#43566a;--muted:#718296;--line:#dce7f2;--soft:#f5f8fc;--soft2:#edf4fb;--tag:#eaf4ff;--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;scroll-padding-top:110px}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.75;overflow-x:hidden}body.menu-open{overflow:hidden}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.container{width:var(--container);margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:9999;background:#fff;color:var(--ink);padding:10px 16px;border-radius:10px;box-shadow:var(--shadow)}.skip-link:focus{top:16px}.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}.safety-strip{background:var(--blue-dark);color:#fff;text-align:center;font-size:13px;padding:7px 20px;line-height:1.5}.site-header{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.94);backdrop-filter:saturate(140%) blur(16px);border-bottom:1px solid rgba(220,231,242,.9)}.header-inner{width:var(--container);height:76px;margin:auto;display:flex;align-items:center;gap:34px}.brand{display:inline-flex;align-items:center;flex:0 0 auto}.brand img{width:172px;height:auto}.desktop-nav{display:flex;align-items:stretch;justify-content:center;gap:6px;flex:1;height:100%}.nav-group{display:flex;align-items:center;position:relative}.nav-trigger,.nav-simple{border:0;background:transparent;color:var(--ink);padding:0 14px;height:100%;display:flex;align-items:center;gap:7px;font-weight:650;cursor:pointer;position:relative}.nav-trigger:after,.nav-simple:after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;background:var(--blue);transform:scaleX(0);transition:.2s;border-radius:3px}.nav-trigger:hover:after,.nav-trigger:focus-visible:after,.nav-trigger.is-current:after,.nav-simple:hover:after,.nav-simple.is-current:after{transform:scaleX(1)}.nav-trigger:focus-visible,.nav-simple:focus-visible,.download-btn:focus-visible,.menu-toggle:focus-visible,.menu-close:focus-visible,.mobile-accordion:focus-visible,.faq-question:focus-visible,[role=tab]:focus-visible{outline:3px solid rgba(63,143,229,.35);outline-offset:3px}.mega-menu{position:fixed;top:108px;left:50%;transform:translateX(-50%);width:min(1000px,calc(100% - 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.hero{padding:70px 0 78px;overflow:hidden;background:linear-gradient(180deg,#fff 0%,#f8fbfe 100%)}.hero-grid{display:grid;grid-template-columns:42% 58%;align-items:center;gap:58px}.hero-visual{background:var(--soft2);border-radius:34px;padding:26px 48px 0;position:relative;min-height:560px;display:flex;align-items:end;justify-content:center}.hero-visual:before{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:#d6eafa;right:-55px;top:-55px}.hero-visual img{position:relative;max-height:590px;object-fit:contain;filter:drop-shadow(0 28px 38px rgba(31,77,119,.18))}.hero-copy h1{font-size:clamp(44px,5.6vw,76px);line-height:1.05;letter-spacing:-.055em;color:var(--ink);margin:14px 0 22px}.hero-subtitle{font-size:18px;color:var(--blue-dark);font-weight:750}.hero-copy p{font-size:17px;max-width:690px}.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:28px 0 24px}.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.hero-tags span{padding:7px 11px;border:1px solid var(--line);background:#fff;border-radius:10px;font-size:13px;color:var(--text)}.hero-links{display:flex;gap:22px;flex-wrap:wrap}.quick-tasks{margin-top:-24px;position:relative;z-index:2}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}.quick-item{padding:26px;min-height:210px;border-right:1px solid var(--line)}.quick-item:last-child{border-right:0}.quick-number{color:#aacbea;font-size:30px;font-weight:800}.quick-item h2{font-size:20px;color:var(--ink);margin:8px 0}.quick-item p{font-size:14px;color:var(--muted);margin:0 0 14px}
.bento-grid{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:minmax(170px,auto);gap:18px}.bento-item{border:1px solid var(--line);border-radius:24px;padding:30px;background:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:space-between}.bento-item:hover{box-shadow:var(--shadow);transform:translateY(-2px);transition:.25s}.bento-item h3{font-size:24px;color:var(--ink);margin:8px 0}.bento-item p{color:var(--muted);max-width:570px}.bento-large{grid-column:span 7;grid-row:span 2;background:var(--soft2)}.bento-small{grid-column:span 5}.bento-wide{grid-column:span 8;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:20px;background:#f8fbfe}.bento-narrow{grid-column:span 4;background:var(--blue-dark);color:#fff}.bento-narrow h3,.bento-narrow p,.bento-narrow .text-link{color:#fff}.bento-art{max-height:270px;object-fit:contain;margin:auto}.bento-large .bento-art{margin-top:18px}
.process{position:relative}.process:before{content:"";position:absolute;left:8%;right:8%;top:42px;height:2px;background:var(--line)}.process-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;position:relative}.process-step{padding-top:0}.step-dot{width:84px;height:84px;border-radius:50%;display:grid;place-items:center;background:#fff;border:1px solid var(--line);box-shadow:0 10px 24px rgba(42,93,145,.09);color:var(--blue-dark);font-weight:850;font-size:18px;position:relative}.process-step:nth-child(even){padding-top:66px}.process-step h3{color:var(--ink);font-size:18px;line-height:1.35;margin:18px 0 8px}.process-step p{font-size:14px;color:var(--muted)}
.tabs-shell{border:1px solid var(--line);border-radius:26px;background:#fff;overflow:hidden}.tab-list{display:flex;gap:6px;padding:12px;border-bottom:1px solid var(--line);overflow-x:auto}.tab-list button{border:0;background:transparent;padding:11px 17px;border-radius:10px;white-space:nowrap;color:var(--text);font-weight:700;cursor:pointer}.tab-list button[aria-selected=true]{background:var(--tag);color:var(--blue-dark)}.tab-panel{padding:32px}.tab-panel[hidden]{display:none}.tab-panel-grid{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}.tab-panel img{max-height:340px;margin:auto;object-fit:contain}.tab-panel h3{font-size:30px;color:var(--ink);margin:0 0 12px}
.security-band{background:var(--blue-dark);color:#eaf4ff;padding:80px 0}.security-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}.security-band h2{font-size:clamp(34px,4vw,52px);line-height:1.12;color:#fff;margin:10px 0 20px}.security-band p{color:#dbeeff}.security-band .light-btn{background:#fff;color:var(--blue-dark);box-shadow:none}.security-check{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);border-radius:24px;padding:26px}.security-check img{max-height:250px;margin:auto auto 22px}.check-list{display:grid;gap:10px}.check-list div{display:flex;gap:10px;align-items:flex-start}.check-list b{width:25px;height:25px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.14);color:#fff;flex:0 0 auto}
.editorial{display:grid;grid-template-columns:1.18fr .82fr;gap:38px}.featured-article{background:var(--soft2);border-radius:26px;padding:42px}.featured-article h3{font-size:36px;line-height:1.2;color:var(--ink);margin:14px 0}.article-list{display:grid}.article-row{padding:18px 0;border-bottom:1px solid var(--line)}.article-row:first-child{padding-top:0}.article-row h3{font-size:19px;color:var(--ink);margin:7px 0}.article-row p{font-size:14px;color:var(--muted);margin:0}
.compare-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:18px}.compare-app{background:var(--soft2);border-radius:28px;padding:36px;display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:center}.compare-app img{max-height:440px;object-fit:contain}.compare-web{border:1px solid var(--line);border-radius:28px;padding:42px;display:flex;flex-direction:column;justify-content:center}.compare-grid h2,.compare-grid h3{color:var(--ink)}.feature-list{list-style:none;padding:0;margin:20px 0}.feature-list li{position:relative;padding:9px 0 9px 27px;border-bottom:1px solid var(--line)}.feature-list li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:900}
.staking-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.staking-info,.risk-panel{padding:38px;border-radius:26px}.staking-info{background:#fff;border:1px solid var(--line)}.risk-panel{background:var(--soft2)}.staking-grid h3{font-size:28px;color:var(--ink);margin-top:0}.plain-list{padding-left:20px}.plain-list li{margin:8px 0}.timeline{position:relative;margin-left:14px}.timeline:before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:2px;background:var(--line)}.timeline-item{position:relative;padding:0 0 30px 52px}.timeline-item:last-child{padding-bottom:0}.timeline-dot{position:absolute;left:0;top:6px;width:18px;height:18px;border-radius:50%;background:#fff;border:5px solid var(--blue)}.timeline-item h3{margin:6px 0;color:var(--ink);font-size:20px}.timeline-item p{margin:0;color:var(--muted)}
.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;min-height:68px;padding:16px 6px;border:0;background:transparent;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;font-weight:750;cursor:pointer}.faq-question span:last-child{font-size:24px;color:var(--blue)}.faq-answer{padding:0 50px 24px 6px;color:var(--muted)}.faq-answer[hidden]{display:none}.faq-item.is-open .faq-question span:last-child{transform:rotate(45deg)}
.final-cta{padding:80px 0}.cta-box{background:var(--ink);color:#eaf4ff;border-radius:30px;padding:52px;display:flex;align-items:center;justify-content:space-between;gap:40px;overflow:hidden;position:relative}.cta-box:after{content:"";position:absolute;width:240px;height:240px;border-radius:50%;background:rgba(63,143,229,.25);right:-70px;top:-90px}.cta-box h2{color:#fff;font-size:clamp(32px,4vw,52px);margin:0 0 12px}.cta-box p{max-width:700px}.cta-actions{display:flex;gap:14px;align-items:center;position:relative;z-index:2;flex-wrap:wrap}.cta-actions .text-link{color:#fff}
.page-hero{padding:68px 0;background:var(--soft)}.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:18px}.breadcrumbs a{color:var(--blue-dark)}.page-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:50px;align-items:center}.page-hero h1{font-size:clamp(40px,5vw,66px);line-height:1.08;letter-spacing:-.045em;color:var(--ink);margin:10px 0 20px}.page-hero p{font-size:18px;max-width:760px}.page-hero img{max-height:370px;margin:auto;object-fit:contain}.overview-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.overview-card{padding:30px;border:1px solid var(--line);border-radius:22px;background:#fff}.overview-card h2,.overview-card h3{color:var(--ink);margin-top:0}.overview-card:nth-child(3n+1){background:var(--soft2)}.overview-card.wide{grid-column:1/-1;display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:center}.overview-card ul{padding-left:20px}.article-shell{padding:66px 0 90px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:56px;align-items:start}.article-content{min-width:0}.article-content section{padding:0 0 44px;margin:0 0 44px;border-bottom:1px solid var(--line)}.article-content section:last-of-type{border-bottom:0}.article-content h2{font-size:clamp(28px,3.5vw,40px);line-height:1.2;color:var(--ink);margin:0 0 18px}.article-content h3{color:var(--ink);font-size:20px}.article-content p{font-size:16px}.article-content ul,.article-content ol{padding-left:23px}.article-content li{margin:8px 0}.article-toc{position:sticky;top:120px;border-left:2px solid var(--line);padding-left:18px}.article-toc h2{font-size:16px;color:var(--ink);margin:0 0 12px}.article-toc a{display:block;padding:7px 0;color:var(--muted);font-size:14px}.article-toc a.is-active{color:var(--blue-dark);font-weight:750}.mobile-toc{display:none;margin-bottom:28px}.mobile-toc summary{cursor:pointer;color:var(--ink);font-weight:750;padding:12px 0}.mobile-toc a{display:block;padding:7px 0;color:var(--blue-dark)}.notice{padding:22px 24px;border-radius:16px;background:#f0f7fe;border-left:4px solid var(--blue);margin:24px 0}.notice strong{color:var(--ink)}.risk-notice{background:#fff7ea;border-left-color:#e5a33e}.related{padding:30px;background:var(--soft);border-radius:22px}.related h2{font-size:24px;color:var(--ink);margin-top:0}.related-links{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.related-links a{background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px;color:var(--blue-dark);font-weight:650}.glossary-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.term{padding:20px;border:1px solid var(--line);border-radius:16px}.term h3{margin:0;color:var(--ink)}.support-steps{counter-reset:steps}.support-step{counter-increment:steps;padding:24px 0 24px 64px;position:relative;border-bottom:1px solid var(--line)}.support-step:before{content:counter(steps);position:absolute;left:0;top:22px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--tag);color:var(--blue-dark);font-weight:850}
.site-footer{background:var(--footer);color:#d7e9f8;padding-top:64px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:44px;padding-bottom:42px}.footer-brand .brand img{filter:brightness(0) invert(1);opacity:.95}.footer-grid h2{color:#fff;font-size:16px;margin:0 0 16px}.footer-grid a:not(.brand){display:block;color:#d7e9f8;padding:5px 0}.footer-grid a:hover{color:#fff}.footer-brand p{max-width:390px}.footer-risk{font-size:13px;color:#a9c8e1}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:18px 0 calc(18px + env(safe-area-inset-bottom));display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:13px;color:#afcce3}
@media (max-width:1050px){.desktop-nav{display:none}.menu-toggle{display:flex}.header-inner{gap:18px}.header-actions{margin-left:auto}.hero-grid{grid-template-columns:1fr 1.15fr;gap:32px}.hero-visual{padding-inline:24px}.quick-grid{grid-template-columns:repeat(2,1fr)}.quick-item:nth-child(2){border-right:0}.quick-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.bento-large{grid-column:span 12}.bento-small{grid-column:span 6}.bento-wide{grid-column:span 7;grid-template-columns:1fr}.bento-narrow{grid-column:span 5}.process:before{display:none}.process-grid{grid-template-columns:repeat(3,1fr)}.process-step:nth-child(even){padding-top:0}.compare-grid{grid-template-columns:1fr}.article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:34px}.footer-grid{grid-template-columns:1.4fr repeat(3,1fr);gap:26px}}
@media (max-width:760px){:root{--container:min(100% - 30px,1180px)}html{scroll-padding-top:86px}.safety-strip{text-align:left;font-size:12px;padding:7px 15px}.header-inner{height:66px}.brand img{width:142px}.header-download{padding-inline:13px;font-size:13px}.menu-toggle{width:44px;height:44px}.section{padding:62px 0}.section-sm{padding:42px 0}.section-heading{display:block}.section-heading p{margin-top:14px}.hero{padding:48px 0 58px}.hero-grid{display:flex;flex-direction:column-reverse;gap:34px}.hero-copy h1{font-size:43px}.hero-visual{min-height:390px;width:100%;padding:20px 35px 0}.hero-visual img{max-height:430px}.quick-tasks{margin-top:-12px}.quick-grid{grid-template-columns:1fr}.quick-item{border-right:0;border-bottom:1px solid var(--line);min-height:0}.quick-item:last-child{border-bottom:0}.bento-grid{display:block}.bento-item{margin-bottom:14px}.bento-wide{display:block}.bento-art{max-height:230px;margin-top:20px}.process-grid{grid-template-columns:1fr}.process-step{padding:0 0 0 64px;position:relative}.process-step:before{content:"";position:absolute;left:22px;top:46px;bottom:-14px;width:2px;background:var(--line)}.process-step:last-child:before{display:none}.step-dot{width:46px;height:46px;position:absolute;left:0;top:0;font-size:14px}.process-step h3{margin-top:0}.tab-panel{padding:24px}.tab-panel-grid,.security-grid,.editorial,.compare-app,.staking-grid,.page-hero-grid,.overview-card.wide{grid-template-columns:1fr}.security-grid{gap:30px}.featured-article{padding:28px}.featured-article h3{font-size:28px}.compare-app{padding:28px}.compare-app img{max-height:360px}.cta-box{padding:34px;display:block}.cta-actions{margin-top:22px}.page-hero{padding:48px 0}.page-hero h1{font-size:42px}.overview-grid{grid-template-columns:1fr}.overview-card.wide{grid-column:auto}.article-layout{display:block}.article-toc{display:none}.mobile-toc{display:block}.article-shell{padding:44px 0 64px}.article-content section{padding-bottom:32px;margin-bottom:32px}.related-links,.glossary-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{flex-direction:column}.hero-links{gap:14px}.hero-actions{align-items:stretch}.hero-actions .download-btn,.hero-actions .primary-btn{width:100%}}
@media (max-width:430px){.header-actions{gap:6px}.header-download{padding-inline:10px}.brand img{width:126px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.hero-copy h1{font-size:38px}.page-hero h1{font-size:37px}.cta-actions .download-btn,.cta-actions .primary-btn{width:100%}}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}