*{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.no-scroll{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;object-fit:contain;object-position:center}button,input{font:inherit}.wrap{width:min(1080px,calc(100% - 32px));margin:auto}.topbar{position:fixed;top:0;left:0;right:0;height:18px;background:#050B12;z-index:80;color:#C9D8E3;font-size:12px}.topbar-inner{height:18px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:#D7E2EA;padding:0;cursor:pointer}.brandbar{position:fixed;top:18px;left:0;right:0;height:54px;background:#0D1B2A;border-bottom:1px solid rgba(86,168,245,.20);z-index:79}.brandbar-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand{min-width:120px;display:flex;align-items:center;font-weight:700;color:#F4F8FC}.brand img,.menu-brand img,.brand-foot img{height:24px;width:auto;max-width:160px}.brand-actions{display:flex;align-items:center;gap:10px}.app-link,.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:12px;font-size:14px}.app-link{border:1px solid rgba(86,168,245,.22);background:#102538}.menu-button{width:44px;height:44px;border:1px solid rgba(86,168,245,.22);background:#102538;border-radius:12px;display:grid;place-content:center;gap:4px;cursor:pointer}.menu-button span{width:18px;height:2px;background:#D7E2EA;border-radius:2px}.quicknav{position:fixed;top:72px;left:0;right:0;height:48px;background:rgba(7,17,26,.96);z-index:70;border-bottom:1px solid rgba(86,168,245,.12)}.quicknav-inner{display:flex;align-items:center;gap:8px;height:100%}.quicknav a{height:34px;display:flex;align-items:center;padding:0 14px;border-radius:10px;font-size:14px;color:#C9D8E3}.quicknav a:hover{background:#102538}.quicknav a.active{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:144px;min-height:60vh}.overlay{position:fixed;inset:0;background:rgba(1,6,10,.66);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:180ms}.overlay.show{opacity:1;visibility:visible;pointer-events:auto}.menu-card{position:fixed;top:82px;right:max(16px,calc((100vw - 1080px)/2));width:min(440px,calc(100vw - 32px));max-height:68vh;overflow:auto;background:#0D1B2A;border:1px solid rgba(86,168,245,.20);border-radius:16px;z-index:100;box-shadow:0 14px 36px rgba(0,0,0,.26);opacity:0;transform:translateY(-10px);visibility:hidden;pointer-events:none;transition:180ms}.menu-card.show{opacity:1;transform:none;visibility:visible;pointer-events:auto}.menu-head,.search-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(86,168,245,.16)}.menu-brand{display:flex;align-items:center;gap:10px}.menu-brand div,.brand-foot{display:flex;align-items:center;gap:8px}.menu-brand div{flex-direction:column;align-items:flex-start;line-height:1.1}.menu-brand span{font-size:12px;color:#9CB0C0}.close-button{width:44px;height:44px;border:1px solid rgba(86,168,245,.20);background:#102538;color:#F4F8FC;border-radius:12px;font-size:26px;cursor:pointer}.menu-groups{padding:10px 16px 18px}.menu-groups section+section{margin-top:16px}.menu-groups h2{font-size:13px;color:#9CB0C0;margin:0 0 7px}.menu-groups a{display:block;padding:10px 12px;border-radius:12px}.menu-groups a:hover{background:#102538}.menu-groups strong{display:block;color:#F4F8FC}.menu-groups span{display:block;font-size:13px;color:#9CB0C0}.search-panel{position:fixed;top:82px;right:max(16px,calc((100vw - 1080px)/2));width:min(540px,calc(100vw - 32px));background:#0D1B2A;border:1px solid rgba(86,168,245,.20);border-radius:16px;z-index:101;box-shadow:0 14px 36px rgba(0,0,0,.26);opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-10px);transition:180ms}.search-panel.show{opacity:1;visibility:visible;pointer-events:auto;transform:none}.search-panel label{display:block;padding:16px 16px 8px;color:#C9D8E3}.search-panel input{width:calc(100% - 32px);margin:0 16px 12px;height:44px;background:#07111A;color:#F4F8FC;border:1px solid rgba(86,168,245,.22);border-radius:12px;padding:0 12px;outline:none}.search-results{padding:0 16px 16px;display:grid;grid-template-columns:1fr 1fr;gap:8px}.search-results a{min-height:44px;display:flex;align-items:center;padding:0 12px;border-radius:10px;background:#102538}.search-results a[hidden]{display:none}.hero,.page-hero{padding:32px 0 44px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:28px;align-items:center}.eyebrow{color:#56A8F5;font-size:13px;font-weight:700;letter-spacing:.08em}.hero h1,.page-hero h1{font-size:24px;line-height:1.3;margin:10px 0 16px;color:#F4F8FC}.hero p,.page-hero p{max-width:760px;color:#C9D8E3}.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}.hero-tags span,.tag{padding:6px 10px;border-radius:999px;background:#102538;border:1px solid rgba(86,168,245,.16);font-size:13px;color:#C9D8E3}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.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:#102538;border:1px solid rgba(86,168,245,.24);color:#F4F8FC}.btn:hover,.app-link:hover,.quicknav a:hover{filter:brightness(1.08)}.btn:active,.app-link:active{filter:brightness(1.12)}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #56A8F5;outline-offset:2px}.visual{background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;min-height:240px;display:flex;align-items:center;justify-content:center;padding:20px;box-shadow:0 14px 36px rgba(0,0,0,.18)}.visual img{width:100%;height:100%;max-height:320px}.section{padding:34px 0}.section.alt{background:#050B12}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:18px}.section h2{font-size:20px;color:#F4F8FC;margin:0}.section h3{font-size:16px;color:#F4F8FC}.section p{margin:8px 0;color:#C9D8E3}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.card{background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;padding:18px}.card p{color:#9CB0C0}.card .more{display:inline-flex;margin-top:8px;color:#56A8F5}.mini-list{display:grid;gap:10px}.mini-list a{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:54px;padding:10px 14px;background:#102538;border:1px solid rgba(86,168,245,.14);border-radius:12px}.longread{width:min(820px,calc(100% - 32px));margin:0 auto;padding-bottom:44px}.longread section{margin:30px 0}.longread h2{font-size:20px;color:#F4F8FC}.longread h3{font-size:16px;color:#F4F8FC}.longread p{color:#D7E2EA}.two-col{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(260px,.6fr);gap:28px}.aside-card{background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;padding:18px;position:sticky;top:140px;align-self:start}.aside-card h2{font-size:16px;margin-top:0}.steps{counter-reset:step;display:grid;gap:14px}.step{counter-increment:step;background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;padding:18px}.step h2:before{content:counter(step) ". ";color:#56A8F5}.notice{padding:16px 18px;border-left:3px solid #2F80ED;background:#102538;border-radius:0 12px 12px 0}.faq-list{display:grid;gap:12px}.faq-item{background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;padding:18px}.faq-item h2{font-size:16px;margin:0 0 8px}.banner{height:200px;background:#0D1B2A;border:1px solid rgba(86,168,245,.16);border-radius:14px;display:flex;align-items:center;justify-content:center;padding:18px;margin-bottom:26px}.banner img{height:100%;width:100%}.site-footer{background:#040A10;border-top:1px solid rgba(86,168,245,.20);margin-top:26px;padding:34px 0 80px;color:#C9D8E3;font-size:13px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:24px}.footer-grid h2{font-size:13px;color:#F4F8FC;margin:0 0 10px}.footer-grid a{display:block;padding:3px 0;color:#C9D8E3}.footer-brand p{max-width:520px;color:#9CB0C0}.brand-foot{margin-bottom:10px}.copyright{padding-top:18px;margin-top:20px;border-top:1px solid rgba(86,168,245,.12);color:#748A9D}.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:75;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#050B12;border-top:1px solid rgba(86,168,245,.20)}.mobile-bar a{flex:1;display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px}.mobile-bar a.active{background:linear-gradient(135deg,#174A7E,#2F80ED);color:#fff;box-shadow:0 6px 16px rgba(47,128,237,.24)}@media(max-width:800px){.quicknav{display:none}main{padding-top:92px}.hero-grid,.split,.two-col,.footer-grid{grid-template-columns:1fr}.hero,.page-hero{padding:24px 0 32px}.visual{min-height:180px}.cards{grid-template-columns:1fr}.aside-card{position:static}.footer-grid{gap:16px}.site-footer{padding-bottom:90px}.mobile-bar{display:flex}.search-panel{inset:0;width:auto;border-radius:0;top:0}.search-panel.show{display:block}.search-results{grid-template-columns:1fr}.menu-card{top:82px;max-height:calc(100vh - 100px)}.wrap{width:min(100% - 32px,1080px)}}