*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#07111A;color:#D7E2EA;font:15px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:min(1080px,calc(100% - 32px));margin:auto}.topbar{position:fixed;z-index:60;top:0;left:0;right:0;height:18px;background:#050B12;color:#9CB0C0;font-size:12px}.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:18px}.text-btn,.menu-btn,.search-head button,.menu-head button{border:0;background:transparent;color:#D7E2EA;cursor:pointer}.brandbar{position:fixed;z-index:59;top:18px;left:0;right:0;height:54px;background:#0D1B2A;border-bottom:1px solid rgba(86,168,245,.2)}.brandbar-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px}.brand img,.menu-head img,.footer-brand img{height:24px;width:auto;object-fit:contain}.head-actions{display:flex;gap:10px;align-items:center}.mini-app,.menu-btn{min-height:44px;display:inline-flex;align-items:center;padding:0 14px;border:1px solid rgba(86,168,245,.2);border-radius:12px}.quicknav{position:fixed;z-index:58;top:72px;left:0;right:0;background:#07111A;border-bottom:1px solid rgba(86,168,245,.12)}.quicknav-inner{display:flex;gap:8px;padding:8px 0}.quicknav a{padding:8px 14px;border-radius:10px;color:#C9D8E3}.quicknav a:hover,.quicknav .is-current{background:linear-gradient(135deg,#56A8F5 0%,#2F80ED 52%,#174A7E 100%);color:#fff;box-shadow:0 6px 16px rgba(47,128,237,.24)}.main{padding-top:132px;padding-bottom:48px;min-height:70vh}h1{font-size:24px;line-height:1.3;color:#F4F8FC;margin:0 0 16px}h2{font-size:20px;color:#F4F8FC;margin:0 0 12px}h3{font-size:16px;color:#F4F8FC;margin:0 0 8px}p{margin:0 0 14px}.eyebrow{font-size:13px;color:#56A8F5;margin-bottom:10px}.hero,.panel,.card,.article,.feature{background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;box-shadow:0 14px 36px rgba(0,0,0,.26)}.hero{padding:34px;display:grid;grid-template-columns:1.25fr .75fr;gap:28px;align-items:center}.hero-copy{max-width:680px}.hero .visual{min-height:220px}.visual{display:flex;align-items:center;justify-content:center;background:#102538;border-radius:14px;overflow:hidden}.visual img{max-width:100%;max-height:100%;width:100%;height:100%;object-fit:contain;object-position:center}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.btn{min-height:44px;padding:10px 18px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(86,168,245,.2);transition:180ms}.btn-primary{background:linear-gradient(135deg,#56A8F5 0%,#2F80ED 52%,#174A7E 100%);color:#fff;box-shadow:0 6px 16px rgba(47,128,237,.24)}.btn-secondary{background:#0D1B2A;color:#D7E2EA}.btn:hover{filter:brightness(1.08);box-shadow:0 0 0 3px rgba(86,168,245,.3),0 10px 24px rgba(47,128,237,.3)}.btn:active{filter:brightness(1.12);box-shadow:0 0 0 4px rgba(86,168,245,.35),0 0 22px rgba(47,128,237,.48)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #56A8F5;outline-offset:2px}.section{margin-top:28px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card,.panel,.article{padding:22px}.card .visual{height:190px;margin-bottom:16px}.feature{padding:24px;display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:center}.feature:nth-child(even){grid-template-columns:1.1fr .9fr}.feature:nth-child(even) .visual{order:2}.feature .visual{min-height:220px}.prose{max-width:820px;margin-inline:auto}.article p{color:#D7E2EA}.article .note{padding:14px 16px;border-left:3px solid #2F80ED;background:#102538;border-radius:10px}.steps{counter-reset:s}.step{counter-increment:s;position:relative;padding:18px 18px 18px 58px;background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;margin-bottom:14px}.step:before{content:counter(s);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#174A7E;color:#fff}.faq details{background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;padding:16px 18px;margin-bottom:12px}.faq summary{cursor:pointer;color:#F4F8FC;font-weight:700}.faq details p{margin-top:12px}.overlay{position:fixed;z-index:70;inset:0;background:rgba(0,0,0,.55)}.menu-panel{position:fixed;z-index:80;top:82px;right:max(16px,calc((100vw - 1080px)/2));width:min(440px,calc(100% - 32px));max-height:68vh;overflow:auto;background:#0D1B2A;border:1px solid rgba(86,168,245,.2);border-radius:14px;padding:18px;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-8px);transition:180ms}.menu-panel.open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.menu-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.menu-head>div{display:flex;gap:8px;align-items:center}.menu-head span{color:#748A9D}.menu-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.menu-grid div:last-child{grid-column:1/-1}.menu-grid a{display:block;padding:10px 0;border-bottom:1px solid rgba(86,168,245,.12)}.menu-grid a span{display:block;color:#9CB0C0;font-size:13px}.search-panel{position:fixed;z-index:81;top:82px;left:50%;transform:translateX(-50%) translateY(-8px);width:min(720px,calc(100% - 32px));background:#0D1B2A;border:1px solid rgba(86,168,245,.2);border-radius:14px;padding:18px;visibility:hidden;pointer-events:none;opacity:0;transition:180ms}.search-panel.open{visibility:visible;pointer-events:auto;opacity:1;transform:translateX(-50%)}.search-head{display:flex;justify-content:space-between;margin-bottom:12px}.search-box input{width:100%;min-height:44px;border-radius:12px;border:1px solid rgba(86,168,245,.2);background:#07111A;color:#fff;padding:0 14px}.search-results{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:12px}.search-results a{padding:10px 12px;background:#102538;border-radius:10px}.footer{background:#040A10;border-top:1px solid rgba(86,168,245,.2);padding:34px 0 90px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}.footer h3{margin-bottom:10px}.footer a{display:block;color:#C9D8E3;margin:6px 0}.footer-brand p{color:#9CB0C0;font-size:13px}.copyright{font-size:13px;color:#748A9D;margin-top:24px}.mobilebar{display:none}
@media(max-width:800px){.quicknav{display:none}.main{padding-top:92px}.hero,.feature,.feature:nth-child(even){grid-template-columns:1fr}.feature:nth-child(even) .visual{order:0}.grid-2,.grid-3{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.menu-grid{grid-template-columns:1fr}.menu-grid div:last-child{grid-column:auto}.search-panel{top:72px;inset:72px 0 0;width:100%;height:calc(100dvh - 72px);transform:none;border-radius:0}.search-panel.open{transform:none}.mobilebar{position:fixed;z-index:65;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#050B12;border-top:1px solid rgba(86,168,245,.2)}.mobilebar a{display:flex;align-items:center;justify-content:center;min-height:50px}.mobilebar .is-current{background:linear-gradient(135deg,#56A8F5 0%,#2F80ED 52%,#174A7E 100%);color:#fff}.footer{padding-bottom:110px}}@media(max-width:520px){.shell{width:min(100% - 32px,1080px)}.hero{padding:22px}.footer-grid{grid-template-columns:1fr}.search-results{grid-template-columns:1fr}.mini-app,.menu-btn{padding:0 10px}.hero .visual{min-height:180px}.card .visual{height:170px}}
