:root{--primary:rgb(70,139,223);--primary-50:#f1f7ff;--primary-100:#e4f0ff;--primary-200:#cce1fb;--primary-500:#468bdf;--primary-600:#3378ce;--primary-700:#2865b1;--gradient:linear-gradient(145deg,#fff 10%,#f1f7ff 95%);--text:#18314a;--muted:#63788b;--border:#e2eaf3;--bg:#fff;--soft:#f7f9fc;--success:#178f69;--amber:#b87912;--shadow-sm:0 6px 20px rgba(35,78,118,.045);--shadow-md:0 14px 40px rgba(40,86,139,.09);--shadow-lg:0 20px 64px rgba(40,86,139,.12);--radius-sm:10px;--radius-md:16px;--radius-lg:22px;--radius-xl:28px;--radius-pill:999px;--container:1200px;--transition-fast:180ms ease;--transition-base:240ms ease;--font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:var(--bg);font-family:var(--font);font-size:16px;line-height:1.78;font-weight:400;overflow-x:hidden}a{color:inherit;text-decoration:none}button{font:inherit}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(34px,5vw,62px);line-height:1.19;letter-spacing:-.035em;font-weight:600}h2{font-size:clamp(27px,3.3vw,41px);line-height:1.28;letter-spacing:-.025em;font-weight:550}h3{font-size:clamp(19px,2vw,23px);font-weight:550;line-height:1.42}p{color:var(--muted);line-height:1.83}a,button{transition:color var(--transition-fast),background var(--transition-fast),transform var(--transition-fast),border var(--transition-fast),box-shadow var(--transition-fast)}a:hover{color:var(--primary-700)}:focus-visible{outline:3px solid #8cbaf4;outline-offset:4px}.container{width:min(var(--container),calc(100% - 64px));margin-inline:auto}.section{padding-block:clamp(58px,7vw,104px)}.eyebrow{display:inline-block;font-size:12px;letter-spacing:.11em;color:var(--primary-700);font-weight:600;margin-bottom:18px}.lead{font-size:clamp(16px,1.6vw,19px);max-width:610px}.section-heading{max-width:820px;margin-bottom:34px}.section-heading h2{margin-bottom:0}.navbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.84);backdrop-filter:blur(14px);border-bottom:1px solid transparent}.navbar.scrolled{border-color:var(--border);box-shadow:var(--shadow-sm)}.nav-inner{height:80px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;font-weight:600;font-size:22px;letter-spacing:-.04em}.brand img{object-fit:contain}.desktop-nav{display:flex;gap:clamp(12px,1.7vw,24px);margin-left:auto;align-items:center}.desktop-nav a{font-size:13px;font-weight:500;white-space:nowrap}.desktop-nav a[aria-current=page]{color:var(--primary-700)}.languages{display:flex;gap:9px;align-items:center;white-space:nowrap;font-size:13px;color:#92a3b7}.languages a{color:var(--muted)}.languages .active{color:var(--primary-700);font-weight:600}.menu-toggle{display:none;border:0;background:transparent;width:46px;height:46px;padding:12px;margin-left:auto;cursor:pointer}.menu-toggle span{height:2px;background:var(--text);display:block;margin:5px 0}.drawer-overlay{position:fixed;inset:0;background:rgba(17,40,65,.35);opacity:0;visibility:hidden;z-index:90;transition:.25s}.mobile-drawer{position:fixed;right:0;top:0;height:100dvh;width:min(84vw,360px);background:#fff;z-index:100;transform:translateX(102%);transition:transform .25s;box-shadow:var(--shadow-lg);padding:28px 28px 38px;display:flex;flex-direction:column;overflow:auto}.drawer-close{margin-left:auto;border:0;background:var(--primary-50);border-radius:9px;font-size:30px;width:44px;height:44px;cursor:pointer}.drawer-links{display:grid;gap:7px;margin-top:35px}.drawer-links a{padding:11px 0;border-bottom:1px solid var(--border);font-size:16px}.drawer-languages{margin-top:auto;padding-top:30px;font-size:17px}.menu-open{overflow:hidden}.menu-open .drawer-overlay{visibility:visible;opacity:1}.menu-open .mobile-drawer{transform:translateX(0)}.menu-open .download-jump{visibility:hidden}.download-jump{position:fixed;right:14px;top:43%;z-index:70;width:80px;height:80px;border-radius:10px;background:var(--primary);color:white!important;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.2;font-size:25px;box-shadow:0 10px 26px #468bdf44}.download-jump span{font-size:13px;font-weight:500;margin-top:4px}.download-jump:hover{transform:translateX(-3px);background:var(--primary-700)}.hero{display:grid;grid-template-columns:5fr 7fr;gap:clamp(30px,5vw,72px);align-items:center;min-height:620px;padding-block:clamp(60px,7vw,100px)}.hero-copy{position:relative;z-index:1}.hero-copy .lead{max-width:550px}.tag-row{display:flex;flex-wrap:wrap;gap:10px 18px;margin:28px 0;color:#3a617f;font-size:13px}.tag-row span{padding:8px 12px;background:var(--primary-50);border-radius:var(--radius-pill)}.text-link{display:inline-block;color:var(--primary-700);font-weight:550;border-bottom:1px solid var(--primary-200);padding-bottom:5px}.text-link:hover{transform:translateX(3px)}.hero-stage{min-height:500px;position:relative;display:flex;align-items:center;justify-content:center}.hero-app{position:relative;z-index:1;max-height:490px;width:auto;object-fit:contain;filter:drop-shadow(0 14px 36px rgba(42,88,140,.12))}.glow{position:absolute;inset:15% 7%;border-radius:50%;background:radial-gradient(circle,#d2e9ff 0%,#f2f8ff 60%,transparent 75%);filter:blur(18px)}.float-note{position:absolute;z-index:2;background:rgba(255,255,255,.95);border:1px solid var(--border);border-radius:12px;padding:13px 16px;box-shadow:var(--shadow-md);font-size:13px}.note-one{top:18%;left:1%}.note-two{bottom:15%;right:0}.principles{border-top:1px solid var(--border);border-bottom:1px solid var(--border);display:grid;grid-template-columns:repeat(4,1fr)}.principles>div{padding:23px 16px;display:flex;align-items:center;gap:12px;border-right:1px solid var(--border)}.principles>div:last-child{border:0}.principles strong{font-size:13px;font-weight:500}.index-number{font-size:12px;color:var(--primary)}.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,6vw,86px);align-items:center}.split-showcase{grid-template-columns:5fr 6fr}.split-showcase .illustration{max-height:240px;object-fit:contain;margin-top:28px}.illustration{width:100%;height:auto;object-fit:contain;border-radius:var(--radius-md)}.wallet-panel{background:#fff;border:1px solid var(--border);padding:clamp(24px,3.4vw,40px);border-radius:24px;box-shadow:var(--shadow-lg);max-width:620px;width:100%;margin:auto}.wallet-top{display:flex;justify-content:space-between;gap:10px;align-items:center;font-weight:550;margin-bottom:26px}.status{font-size:12px;color:var(--success);background:#e9f9f3;padding:4px 9px;border-radius:20px}.wallet-panel small{color:var(--muted)}.balance{font-size:clamp(30px,4vw,44px);font-weight:550;letter-spacing:-.04em}.mini-chart{display:flex;align-items:flex-end;gap:6px;height:73px;margin:22px 0;border-bottom:1px solid var(--border)}.mini-chart span{background:#d9e9fa;flex:1;border-radius:5px 5px 0 0;height:45%}.mini-chart span:nth-child(2){height:60%}.mini-chart span:nth-child(3){height:39%}.mini-chart span:nth-child(4){height:73%}.mini-chart span:nth-child(5){height:65%}.mini-chart span:nth-child(6){height:90%}.mini-chart span:nth-child(7){height:78%;background:var(--primary)}.token-row{display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--border);padding:14px 0;font-size:14px}.token-row strong{font-weight:550}.token-row>span:last-child{margin-left:auto;color:var(--muted);font-variant-numeric:tabular-nums}.token-icon{width:34px;height:34px;border-radius:10px;background:var(--primary-50);display:grid;place-items:center}.wallet-bottom{margin-top:22px;font-size:12px;color:var(--success)}.journey-section,.soft-section{background:var(--soft)}.journey-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.journey-item{background:#fff;border:1px solid var(--border);border-radius:16px;padding:clamp(22px,3vw,32px);min-width:0}.step-id{color:var(--primary);font-size:17px;display:flex;justify-content:space-between;margin-bottom:25px}.journey-item h3{margin-bottom:10px}.journey-item p{font-size:14px;min-height:100px}.journey-item a{font-size:13px;color:var(--primary-700);font-weight:550}.feature-split:nth-of-type(even),.reverse{direction:rtl}.feature-split:nth-of-type(even)>*,.reverse>*{direction:ltr}.feature-art{position:relative;background:var(--primary-50);border-radius:24px;padding:clamp(20px,4vw,50px)}.feature-art .illustration{max-height:360px;object-fit:contain}.feature-detail{position:relative;margin:18px auto 0;background:#fff;border:1px solid var(--border);border-radius:10px;padding:10px 16px;font-size:13px;max-width:max-content;color:var(--muted)}.architecture{background:linear-gradient(120deg,#f4f9ff,#fff)}.architecture-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}.architecture-grid>div,.architecture-grid>article{border-top:1px solid #cadeee;padding-top:22px}.huge-number{font-size:clamp(40px,5vw,65px);line-height:1;color:#b7d4f3;font-weight:500;letter-spacing:-.06em}.architecture-grid h3{margin-top:14px}.chapter-index{display:grid;grid-template-columns:4fr 7fr;gap:80px}.chapter-intro{position:sticky;top:110px;align-self:start}.chapter-links a{display:grid;grid-template-columns:50px 1fr 25px;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--border)}.chapter-links a:first-child{border-top:1px solid var(--border)}.chapter-links a strong{font-weight:500}.chapter-links a span{color:var(--primary)}.chapter-links a:hover{transform:translateX(4px)}.scenario-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.scenario{border:1px solid var(--border);border-radius:18px;padding:24px;display:flex;flex-direction:column;min-height:270px}.scenario:hover{border-color:var(--primary-200);transform:translateY(-3px);box-shadow:var(--shadow-sm)}.scenario p{font-size:14px}.scenario>span:last-child{margin-top:auto;color:var(--primary)}.badge-icon{width:46px;height:46px;display:grid;place-items:center;background:var(--primary-50);border-radius:12px;margin-bottom:20px;color:var(--primary)}.risk-section{background:var(--primary-50)}.risk-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}.risk-list>div{display:flex;align-items:center;gap:12px;border-radius:12px;background:#fff;padding:18px;font-size:14px;border:1px solid var(--border)}.faq-list{border-top:1px solid var(--border)}.faq-item{border-bottom:1px solid var(--border)}.faq-question{display:flex;justify-content:space-between;align-items:center;gap:20px;width:100%;background:transparent;border:0;text-align:left;padding:22px 0;color:var(--text);cursor:pointer;font-size:16px;font-weight:500}.faq-plus{display:grid;place-items:center;flex:0 0 31px;width:31px;height:31px;border-radius:50%;background:var(--primary-50);font-size:22px;color:var(--primary)}.faq-question[aria-expanded=true] .faq-plus{transform:rotate(45deg)}.faq-answer{max-width:840px;padding-bottom:14px}.faq-answer p{margin:0}.faq-preview>.text-link{margin-top:22px}.download-cta{background:linear-gradient(130deg,#f0f7ff,#e8f3ff 50%,#f8fbff);padding:clamp(60px,7vw,100px) 0;text-align:center}.cta-inner{display:flex;flex-direction:column;align-items:center}.cta-inner p{max-width:620px}.download-btn{margin-top:28px;display:inline-flex;min-width:235px;min-height:70px;align-items:center;justify-content:center;gap:10px;background:var(--primary);color:#fff!important;border-radius:12px;padding:18px 28px;font-size:18px;font-weight:550;box-shadow:0 8px 25px #468bdf36}.download-btn:hover{background:var(--primary-700);transform:translateY(-2px)}.site-footer{padding:62px 0 24px;background:#fff}.footer-inner{display:grid;grid-template-columns:1fr 1.5fr;gap:60px}.footer-inner p{font-size:13px;margin-top:13px}.footer-inner nav{display:grid;grid-template-columns:1fr 1fr;gap:9px 24px}.footer-inner nav a{font-size:13px}.fineprint{margin-top:40px;padding-top:15px;border-top:1px solid var(--border);font-size:12px;color:var(--muted)}.breadcrumb{display:flex;gap:12px;align-items:center;font-size:12px;color:var(--muted);padding-top:25px}.breadcrumb a{color:var(--primary-700)}.guide-hero{display:grid;grid-template-columns:6fr 5fr;gap:65px;align-items:center;padding-block:clamp(50px,6vw,92px);border-bottom:1px solid var(--border)}.guide-hero h1{font-size:clamp(34px,4.5vw,58px)}.guide-visual{background:var(--primary-50);padding:35px;border-radius:24px;min-width:0}.guide-visual .illustration{max-height:320px}.guide-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(265px,.85fr);gap:60px;align-items:start}.guide-content>p{max-width:810px}.numbered-guidance{margin-top:28px}.guidance-row{display:grid;grid-template-columns:80px 1fr;gap:24px;padding:25px 0;border-top:1px solid var(--border)}.guidance-row h3{margin-bottom:8px}.guidance-row p{margin:0}.guide-aside{background:var(--primary-50);padding:28px;border-radius:18px;position:sticky;top:110px}.guide-aside h2{font-size:23px}.guide-aside ul{padding-left:20px;color:var(--text)}.guide-aside li{margin-bottom:12px}.notice{padding:18px;background:#fff;border:1px solid #d9e7f6;border-radius:12px;color:var(--muted);font-size:14px}.notice.warning{margin-top:35px;background:#fff8e9;border-color:#f3e5c5}.soft-section .illustration{max-height:390px}.related{padding-bottom:clamp(60px,7vw,100px)}.related h2{font-size:28px}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.related-grid a{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:20px;border:1px solid var(--border);border-radius:14px;font-size:14px}.related-grid a:hover{background:var(--primary-50)}.faq-page{max-width:960px}.four-steps{grid-template-columns:repeat(4,minmax(0,1fr))}.four-steps .journey-item p{min-height:0}.static-download{min-height:70vh;padding-block:90px;max-width:850px}.static-download a{color:var(--primary-700)}.reveal{transition:opacity .55s,transform .55s}.js-motion .reveal:not(.visible){opacity:0;transform:translateY(18px)}
@media(max-width:1100px){.desktop-nav,.desktop-lang{display:none}.menu-toggle{display:block}.scenario-grid{grid-template-columns:repeat(2,1fr)}.four-steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:1024px){.hero{grid-template-columns:1fr 1fr}.hero-stage{min-height:400px}.hero-app{max-height:385px}.principles{grid-template-columns:repeat(2,1fr)}.principles>div:nth-child(2){border-right:0}.principles>div:nth-child(-n+2){border-bottom:1px solid var(--border)}.chapter-index{gap:40px}.guide-layout{gap:30px}}
@media(max-width:768px){.container{width:min(100% - 36px,var(--container))}.nav-inner{height:68px}.hero,.split,.guide-hero,.guide-layout,.chapter-index,.footer-inner{grid-template-columns:1fr;gap:30px}.hero{padding-block:55px;min-height:0}.hero-stage{min-height:0;display:block;text-align:center}.hero-app{max-height:370px;margin-inline:auto}.float-note{position:static;display:inline-flex;margin:10px 4px 0;font-size:11px}.journey-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.architecture-grid{grid-template-columns:1fr;gap:12px}.chapter-intro,.guide-aside{position:static}.feature-split:nth-of-type(even),.reverse{direction:ltr}.scenario-grid{grid-template-columns:1fr 1fr}.related-grid{grid-template-columns:1fr}.guide-visual{padding:25px}.guide-layout{gap:22px}.risk-list{grid-template-columns:1fr}.download-jump{height:68px;width:68px;right:12px;top:43%;font-size:22px}.download-jump span{font-size:11px}.download-btn{width:min(72vw,300px);min-width:0;min-height:60px}.footer-inner nav{gap:12px}.section{padding-block:58px}}
@media(max-width:480px){.container{width:calc(100% - 36px)}.brand{font-size:20px}.hero-stage{padding-top:10px}.hero-app{max-height:310px}.principles{grid-template-columns:1fr}.principles>div{border-right:0;border-bottom:1px solid var(--border)}.principles>div:last-child{border:0}.journey-grid,.scenario-grid,.four-steps{grid-template-columns:1fr}.journey-item p{min-height:0}.guide-hero{gap:20px}.guidance-row{grid-template-columns:55px 1fr;gap:14px}.huge-number{font-size:42px}.wallet-panel{padding:20px}.risk-section{padding-right:25px}.tag-row{padding-right:30px}.hero-copy h1,.guide-hero h1{padding-right:16px;overflow-wrap:anywhere}.download-jump{right:12px}.faq-question{padding-right:18px}.related-grid a{padding-right:28px}.feature-art{padding:20px}.footer-inner nav{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}.js-motion .reveal:not(.visible){opacity:1;transform:none}}
