:root{--primary:rgb(70,139,223);--primary-50:#f4f8fe;--primary-100:#e9f2fd;--primary-200:#d4e5fb;--primary-500:#468bdf;--primary-600:#3479cb;--primary-700:#2566b4;--gradient:linear-gradient(135deg,#f4f9ff,#eaf3ff);--text:#1b304b;--muted:#61748a;--bg:#fff;--soft:#f7f9fc;--border:#e2eaf3;--green:#2d986e;--amber:#aa742a;--shadow-sm:0 8px 24px rgba(33,73,120,.05);--shadow-md:0 18px 48px rgba(33,73,120,.09);--shadow-lg:0 30px 75px rgba(33,73,120,.12);--radius-sm:10px;--radius-md:16px;--radius-lg:22px;--radius-xl:28px;--radius-pill:999px;--container:1220px;--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;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;font-weight:400;line-height:1.78;overflow-x:clip}body.menu-open{overflow:hidden}img{max-width:100%;height:auto;object-fit:contain}a{color:var(--primary-700);text-decoration:none;transition:color var(--transition-fast),transform var(--transition-fast),border-color var(--transition-fast)}a:hover{color:var(--primary)}button{font:inherit}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.21;letter-spacing:-.027em;font-weight:550}h1{font-size:clamp(2.2rem,5vw,4rem)}h2{font-size:clamp(1.7rem,3.15vw,2.55rem)}h3{font-size:1.16rem}p{color:var(--muted)}:focus-visible{outline:3px solid var(--primary);outline-offset:4px}.container{width:min(calc(100% - 48px),var(--container));margin-inline:auto}.section{padding-block:clamp(56px,7vw,106px)}.section-soft{background:var(--soft)}.eyebrow{display:inline-block;color:var(--primary-700);font-size:.8rem;font-weight:600;letter-spacing:.1em;margin-bottom:24px}.lead{font-size:clamp(1.02rem,1.6vw,1.2rem);line-height:1.82;max-width:730px}.muted{color:var(--muted)}.skip-link{position:fixed;left:12px;top:-70px;background:white;padding:12px;z-index:120}.skip-link:focus{top:12px}.navbar{position:sticky;top:0;background:rgba(255,255,255,.94);border-bottom:1px solid rgba(226,234,243,.8);z-index:60;transition:box-shadow var(--transition-base),background var(--transition-base);backdrop-filter:blur(15px)}.navbar.scrolled{background:#fff;box-shadow:var(--shadow-sm)}.nav-inner{height:82px;display:flex;align-items:center;gap:30px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-size:1.22rem;font-weight:600;white-space:nowrap}.brand img{width:38px;height:38px;object-fit:contain}.desktop-nav{margin-left:auto;display:flex;align-items:center;gap:clamp(10px,1.35vw,24px)}.desktop-nav a{font-size:.88rem;font-weight:500;color:var(--text);white-space:nowrap}.desktop-nav a:hover,.desktop-nav [aria-current=page]{color:var(--primary)}.lang-switch{display:flex;align-items:center;gap:8px;font-size:.85rem;white-space:nowrap}.lang-switch a{color:var(--muted)}.lang-switch a.active{color:var(--primary-700);font-weight:600}.menu-toggle{display:none;appearance:none;border:0;background:none;width:46px;height:46px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}.menu-toggle span{display:block;width:24px;height:2px;background:var(--text)}.drawer-overlay{position:fixed;inset:0;background:rgba(12,30,49,.3);z-index:80}.drawer-overlay[hidden]{display:none}.mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(86vw,360px);padding:26px;display:flex;flex-direction:column;z-index:90;background:white;box-shadow:var(--shadow-lg);transform:translateX(105%);visibility:hidden;transition:transform var(--transition-base),visibility var(--transition-base)}.mobile-drawer.open{transform:translateX(0);visibility:visible}.drawer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.drawer-close{border:0;background:var(--soft);width:44px;height:44px;border-radius:var(--radius-sm);font-size:1.7rem}.mobile-drawer nav{display:flex;flex-direction:column;overflow-y:auto}.mobile-drawer nav a{display:flex;justify-content:space-between;padding:12px 4px;border-bottom:1px solid var(--border);color:var(--text)}.drawer-languages{margin-top:auto;padding-top:24px;border-top:1px solid var(--border)}.download-jump{position:fixed;right:14px;top:39%;z-index:70;width:80px;height:80px;border-radius:10px;background:var(--primary);color:white;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.1;font-size:26px;box-shadow:0 10px 25px rgba(70,139,223,.25);text-align:center}.download-jump span{margin-top:6px;font-size:12px;font-weight:550}.download-jump:hover{color:white;transform:translateX(-3px);background:var(--primary-600)}.menu-open .download-jump{z-index:50;opacity:0;pointer-events:none}.hero{display:grid;grid-template-columns:5fr 7fr;gap:clamp(24px,5vw,80px);min-height:660px;align-items:center;padding-block:76px 90px}.hero-copy h1{max-width:520px}.hero-copy .lead{max-width:510px}.hero-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.hero-tags span{font-size:.85rem;border:1px solid var(--border);background:white;padding:8px 12px;border-radius:var(--radius-pill)}.hero-stage{position:relative;min-height:560px;display:flex;align-items:center;justify-content:center}.hero-glow{position:absolute;inset:7% 4%;border-radius:50%;background:radial-gradient(circle,#dcebff 0%,#f1f7ff 50%,transparent 75%);filter:blur(14px)}.hero-app{position:absolute;width:54%;max-height:540px;left:0;top:8%;z-index:2;filter:drop-shadow(0 24px 27px rgba(20,53,95,.12))}.hero-wallet{width:63%;margin-left:auto;position:relative;z-index:3;transform:translateY(24px)}.floating-status{position:absolute;z-index:4;background:rgba(255,255,255,.98);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-md);padding:10px 15px;font-size:.81rem;white-space:nowrap}.float-one{top:8%;right:0}.float-two{bottom:2%;left:12%}.wallet-mock{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:clamp(18px,2.5vw,30px);width:100%;min-width:0}.mock-top{display:flex;justify-content:space-between;gap:8px;font-size:.85rem;font-weight:550}.status-dot{font-size:.69rem;color:var(--green)}.wallet-mock>.muted{font-size:.84rem;margin:28px 0 2px}.balance{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:600}.mock-actions{display:flex;gap:8px;margin:24px 0}.mock-actions span{flex:1;border-radius:10px;background:var(--primary-50);color:var(--primary-700);font-size:.73rem;text-align:center;padding:9px 3px}.token-row{display:flex;align-items:center;gap:10px;border-top:1px solid var(--border);padding:12px 0;font-size:.85rem}.token-row>b{width:36px;height:36px;flex:none;border-radius:10px;background:var(--primary-100);display:grid;place-items:center;color:var(--primary)}.token-row span{display:flex;flex:1;flex-direction:column;line-height:1.5}.token-row small{color:var(--muted);font-size:.7rem}.token-row strong{font-weight:500;white-space:nowrap}.mock-note{font-size:.7rem;margin:14px 0 0}.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.trust-strip>div{padding:22px 15px;border-right:1px solid var(--border);display:flex;gap:14px;align-items:center}.trust-strip>div:last-child{border-right:0}.trust-strip span,.step-number,.dir-num{color:var(--primary);font-size:1rem;font-variant-numeric:tabular-nums}.trust-strip strong{font-size:.85rem;font-weight:500}.layout-showcase{display:grid;grid-template-columns:7fr 5fr;gap:6%;align-items:center}.showcase-board{background:var(--gradient);padding:clamp(18px,3vw,44px);border-radius:var(--radius-lg);display:grid;grid-template-columns:1fr 1.15fr;align-items:center;gap:12px}.showcase-board .wallet-mock{font-size:.83rem}.showcase-image img{width:100%}.section-copy{max-width:430px}.section-copy p,.feature-copy p{font-size:1.06rem}.section-heading{max-width:900px;margin-bottom:38px}.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.step-card{padding:25px;border:1px solid var(--border);background:white;border-radius:var(--radius-md);display:flex;flex-direction:column;min-width:0}.step-card h3{margin:18px 0 10px}.step-card p{flex:1;font-size:.92rem}.step-card>a{font-size:.85rem;font-weight:500}.feature-split{display:grid;grid-template-columns:5fr 7fr;gap:8%;align-items:center}.feature-split.reverse{grid-template-columns:7fr 5fr}.feature-split.reverse>.feature-copy{order:2}.visual-frame{display:flex;justify-content:center;align-items:center;min-width:0;min-height:240px;border:1px solid var(--border);background:var(--primary-50);border-radius:var(--radius-lg);padding:clamp(20px,3.5vw,52px)}.visual-frame img{width:100%;max-height:420px}.feature-copy{max-width:610px}.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.principle-grid article{border-top:2px solid var(--primary-200);padding-top:28px}.principle-grid article>span{font-size:2.5rem;color:var(--primary-200);line-height:1.2}.principle-grid h3{margin-top:14px}.layout-directory{display:grid;grid-template-columns:4fr 8fr;gap:8%}.directory-list>a{display:grid;grid-template-columns:40px 1fr 20px;gap:12px;align-items:center;padding:18px 0;border-bottom:1px solid var(--border);color:var(--text)}.directory-list a:hover{transform:translateX(3px);color:var(--primary)}.directory-list strong{display:block;font-weight:550}.directory-list small{display:block;color:var(--muted);font-size:.78rem;margin-top:3px}.scenario-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}.scenario{grid-column:span 2;border-radius:var(--radius-md);border:1px solid var(--border);padding:25px;background:white;min-width:0}.scenario:nth-child(1),.scenario:nth-child(2){grid-column:span 3}.scenario-index{color:var(--primary)}.scenario h3{margin-top:18px}.risk-table{border-top:1px solid var(--border)}.risk-head,.risk-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:18px 20px;border-bottom:1px solid var(--border)}.risk-head{background:var(--primary-50);font-size:.9rem}.risk-row span:first-child{font-weight:550}.faq-preview{display:grid;grid-template-columns:4fr 8fr;gap:8%}.faq-item{border-bottom:1px solid var(--border)}.faq-item h3{margin:0}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;border:0;background:white;color:var(--text);padding:19px 0;cursor:pointer;font-weight:500;font-size:1rem;min-height:56px}.faq-question:hover{color:var(--primary)}.faq-symbol{font-size:1.3rem}.faq-answer{padding:0 20px 16px 0}.faq-answer p{margin:0}.download-cta{margin-top:45px;margin-bottom:85px;padding:clamp(45px,6vw,90px) 24px;background:var(--gradient);border-radius:var(--radius-xl);text-align:center;display:flex;flex-direction:column;align-items:center}.download-cta p{max-width:580px}.download-cta .eyebrow{margin-bottom:12px}.download-cta small{display:block;margin-top:20px;color:var(--muted);font-size:.76rem}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-width:240px;min-height:72px;border-radius:12px;background:var(--primary);color:#fff;font-size:1.2rem;font-weight:550;box-shadow:0 10px 25px rgba(70,139,223,.2);padding:14px 24px;margin-top:18px}.download-btn:hover{background:var(--primary-600);color:white;transform:translateY(-2px)}.site-footer{background:#f8fafd;border-top:1px solid var(--border);padding:54px 0 25px}.footer-layout{display:grid;grid-template-columns:4fr 8fr;gap:10%}.footer-layout p{max-width:320px;font-size:.88rem;margin-top:18px}.footer-layout nav{display:flex;flex-wrap:wrap;align-content:start;gap:14px 26px}.footer-layout nav a{font-size:.88rem;color:var(--muted)}.footer-bottom{border-top:1px solid var(--border);margin-top:36px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;font-size:.78rem;color:var(--muted)}.guide-hero{display:grid;grid-template-columns:7fr 5fr;gap:6%;align-items:center;padding-block:65px 55px}.guide-hero h1{font-size:clamp(2.2rem,4vw,3.4rem)}.guide-hero .visual-frame{min-height:330px}.breadcrumb{margin-bottom:32px;font-size:.83rem;color:var(--muted)}.guide-columns{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:6%;align-items:start}.info-row{display:grid;grid-template-columns:46px 1fr;gap:16px;padding:25px 0;border-top:1px solid var(--border)}.info-row h2{font-size:1.35rem;margin-bottom:10px}.info-row p{max-width:740px;margin-bottom:0}.guide-aside{padding:28px;border-radius:var(--radius-md);border:1px solid var(--border);background:var(--primary-50)}.guide-aside h2{font-size:1.22rem}.checklist{list-style:none;margin:16px 0;padding:0}.checklist li{padding:10px 0 10px 26px;border-bottom:1px solid var(--border);position:relative;font-size:.9rem}.checklist li:before{content:'✓';position:absolute;left:0;color:var(--green)}.notice{background:#fff9eb;border-left:3px solid #e7bc67;color:#7b5a2e;padding:15px;font-size:.88rem;margin-top:22px}.notice-wide{max-width:980px;margin:32px auto}.security-lead{max-width:820px;margin-bottom:38px}.related h2{font-size:1.55rem}.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.related-grid a,.side-links a{display:block;border-bottom:1px solid var(--border);padding:16px;color:var(--text)}.related-grid a:hover,.side-links a:hover{color:var(--primary);transform:translateX(3px)}.page-intro{padding-top:80px;padding-bottom:55px}.page-intro h1{max-width:900px}.faq-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(260px,4fr);gap:7%;align-items:start}.install-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.install-grid h2{font-size:1.16rem}.reveal-on{animation:soft-rise .55s both}@keyframes soft-rise{from{opacity:.75;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1100px){.desktop-nav,.desktop-languages{display:none}.menu-toggle{margin-left:auto;display:flex}.hero{grid-template-columns:1fr 1.1fr}.hero-wallet{width:75%}.hero-app{width:57%}.showcase-board{grid-template-columns:1fr}.showcase-image img{max-height:210px}.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.install-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:768px){.container{width:min(calc(100% - 36px),var(--container))}.nav-inner{height:70px}.hero,.layout-showcase,.feature-split,.feature-split.reverse,.layout-directory,.faq-preview,.guide-hero,.guide-columns,.faq-layout,.footer-layout{grid-template-columns:1fr}.hero{padding-block:42px 55px;min-height:0;gap:30px}.hero-stage{min-height:0;display:grid;grid-template-columns:1fr 1fr;gap:10px;align-items:center;padding-block:10px 30px}.hero-app{position:relative;left:auto;top:auto;width:100%;max-height:370px}.hero-wallet{width:100%;transform:none}.hero-glow{inset:5%}.floating-status{position:static;white-space:normal;font-size:.76rem;grid-column:span 1}.float-one,.float-two{justify-self:stretch}.hero-tags{margin-top:22px}.trust-strip{grid-template-columns:repeat(2,1fr)}.trust-strip>div:nth-child(2){border-right:0}.trust-strip>div:nth-child(-n+2){border-bottom:1px solid var(--border)}.layout-showcase,.feature-split{gap:32px}.feature-split.reverse>.feature-copy{order:0}.principle-grid{gap:16px}.page-intro{padding-block:48px 24px}.guide-hero{padding-block:35px}.guide-hero .visual-frame{min-height:200px}.section{padding-block:55px}.download-jump{right:12px;width:68px;height:68px;font-size:24px}.download-jump span{font-size:11px}.footer-layout{gap:25px}.footer-layout nav{gap:8px 20px}}
@media(max-width:480px){body{font-size:15px}.container{width:calc(100% - 36px)}h1{font-size:clamp(2.1rem,9vw,2.6rem)}h2{font-size:clamp(1.65rem,7vw,2rem)}.hero-stage{grid-template-columns:1fr 1fr;gap:8px}.hero-app{max-height:280px}.hero-wallet .wallet-mock{padding:12px}.hero-wallet .mock-top{font-size:.58rem}.hero-wallet .status-dot{font-size:.5rem}.hero-wallet .balance{font-size:1.15rem}.hero-wallet .wallet-mock>.muted{margin-top:12px;font-size:.63rem}.hero-wallet .mock-actions{margin:10px 0;gap:3px}.hero-wallet .mock-actions span{font-size:.52rem;padding:5px 1px}.hero-wallet .token-row{padding:5px 0;gap:4px;font-size:.57rem}.hero-wallet .token-row>b{width:20px;height:20px;font-size:.68rem}.hero-wallet .token-row small{font-size:.51rem}.hero-wallet .mock-note{font-size:.51rem}.floating-status{font-size:.66rem;padding:8px}.trust-strip strong{font-size:.75rem}.trust-strip>div{gap:6px;padding:14px 7px}.step-grid,.install-grid,.related-grid,.principle-grid,.scenario-grid{grid-template-columns:1fr}.scenario,.scenario:nth-child(1),.scenario:nth-child(2){grid-column:auto}.step-card{padding:21px}.showcase-board{padding:20px}.risk-head{display:none}.risk-row{grid-template-columns:1fr;gap:5px;padding:17px 12px}.risk-row span:before{display:block;font-size:.7rem;color:var(--primary);font-weight:500}.risk-row span:nth-child(1):before{content:'Risk / 风险'}.risk-row span:nth-child(2):before{content:'Check / 核对'}.risk-row span:nth-child(3):before{content:'Action / 建议'}.download-cta{border-radius:18px;margin-bottom:45px}.download-btn{width:70%;min-width:0;min-height:60px;font-size:1.04rem}.info-row{grid-template-columns:34px 1fr;gap:10px}.footer-bottom{flex-direction:column}.download-jump{top:42%}.faq-question{padding-right:4px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}