*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F5FAFE;color:#2A4156;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.is-locked{overflow:hidden}a{color:#1B4A6E;text-decoration:none}a:hover{text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:16px;top:-80px;z-index:1200;background:#fff;color:#16324A;padding:8px 12px;border-radius:8px}.skip-link:focus{top:8px}.topline{position:fixed;z-index:1000;top:0;left:0;right:0;height:22px;background:#1B4A6E;color:#fff;font-size:12px}.topline-inner{max-width:1120px;height:22px;margin:0 auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between}.top-action{height:22px;border:0;background:transparent;color:#fff;padding:0 8px}.journal-header{position:fixed;z-index:990;top:22px;left:0;right:0;height:60px;background:#fff;border-bottom:1px solid rgba(74,163,224,.16)}.journal-inner{max-width:1120px;height:60px;margin:0 auto;padding:0 16px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px}.header-logo{justify-self:start;display:flex;align-items:center;min-height:44px}.brand-logo,.drawer-logo,.footer-logo{display:block;height:28px;width:auto;max-width:150px;object-fit:contain;object-position:center}.brand-word{display:inline-flex;align-items:center;height:28px;font-size:16px;font-weight:800;color:#16324A;letter-spacing:.04em}.drawer-button,.app-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;font-size:14px}.drawer-button{padding:0 18px;border:1px solid rgba(74,163,224,.42);background:#fff;color:#1B4A6E}.app-link{justify-self:end;padding:0 18px;color:#fff;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%)}.section-tabs{position:fixed;z-index:980;top:82px;left:0;right:0;height:40px;background:#EAF5FC;border-bottom:1px solid rgba(74,163,224,.16)}.tabs-inner{max-width:1120px;height:40px;margin:0 auto;display:flex;justify-content:center;align-items:center;gap:8px}.tab-link{height:30px;min-width:72px;padding:0 16px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:#1B4A6E}.tab-link.is-active{background:#4AA3E0;color:#fff}.site-main{max-width:1120px;margin:0 auto;padding:154px 16px 56px}.page-head{margin:0 0 22px}.eyebrow{font-size:13px;letter-spacing:.08em;color:#4E6A80;margin:0 0 6px}.page-head h1,.hero-copy h1{font-size:24px;line-height:1.3;color:#16324A;margin:0 0 12px}.page-head p,.hero-copy p{margin:0;max-width:820px}.section-block{margin:34px 0}.section-title-row{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}.section-title-row h2,.section-block>h2{font-size:20px;color:#16324A;margin:0 0 12px;line-height:1.4}.section-title-row p{margin:0;color:#6E8899}.card h2,.card h3,.entry h2,.entry h3,.note-card h3,.timeline-item h3,.terms-card h2,.faq-item h2{color:#16324A}.card h3,.entry h3,.note-card h3,.timeline-item h3{font-size:16px;margin:0 0 8px}.card p,.entry p,.note-card p,.timeline-item p,.terms-card p{margin:0 0 10px}.card p:last-child,.entry p:last-child,.note-card p:last-child,.timeline-item p:last-child,.terms-card p:last-child{margin-bottom:0}.hero{background:#fff;border:1px solid rgba(74,163,224,.16);box-shadow:0 12px 28px rgba(27,74,110,.08);border-radius:14px;overflow:hidden}.hero-copy{padding:24px}.media-slot{width:100%;background:#EAF5FC;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{display:block;width:100%;height:100%;object-fit:contain;object-position:center}.banner-slot{height:260px}.feature-slot{height:180px}.wide-slot{height:200px}.app-slot{height:340px;max-width:360px;margin:0 auto}.icon-slot{width:48px;height:48px;border-radius:12px;flex:0 0 48px}.media-empty{min-height:80px}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{min-height:42px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.btn-primary{color:#fff;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%)}.btn-secondary{background:#fff;color:#1B4A6E;border:1px solid rgba(74,163,224,.42)}.btn:hover{transform:translateY(-1px)}.btn:focus-visible,.drawer-button:focus-visible,.app-link:focus-visible,.top-action:focus-visible,.tab-link:focus-visible,.close-button:focus-visible,.mobile-bottom a:focus-visible,.drawer a:focus-visible,.search-presets a:focus-visible{outline:3px solid rgba(74,163,224,.42);outline-offset:2px}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.four-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.card,.entry,.note-card,.terms-card,.faq-item,.index-card{background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:12px;box-shadow:0 12px 28px rgba(27,74,110,.08);padding:18px}.feature-card{padding:0;overflow:hidden}.feature-card .card-body{padding:18px}.number-list,.shelf-list,.index-list{display:grid;gap:10px}.number-row,.shelf-row,.index-row{display:grid;grid-template-columns:48px 1fr auto;gap:12px;align-items:center;padding:14px 16px;border-radius:12px;background:#fff;border:1px solid rgba(74,163,224,.16)}.number{font-size:18px;font-weight:800;color:#4AA3E0}.number-row strong,.shelf-row strong,.index-row strong{color:#16324A}.number-row span,.shelf-row span,.index-row span{color:#6E8899}.number-row a,.shelf-row a,.index-row a{min-height:40px;display:inline-flex;align-items:center;color:#1B4A6E;font-weight:700}.article-body{display:grid;gap:16px}.article-body .entry{padding:22px}.article-body h2{font-size:20px;margin:0 0 10px}.article-body h3{font-size:16px;margin:0 0 8px}.article-body ul{padding-left:1.2em;margin:8px 0}.article-body li{margin:4px 0}.tagline{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;background:#EAF5FC;color:#1B4A6E;font-size:13px;margin-bottom:10px}.timeline{position:relative;margin-left:12px;padding-left:26px;border-left:2px solid #D7EAF6;display:grid;gap:18px}.timeline-item{position:relative;background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:12px;padding:18px}.timeline-item:before{content:"";position:absolute;left:-34px;top:22px;width:12px;height:12px;border-radius:50%;background:#4AA3E0;border:3px solid #F5FAFE}.status{display:inline-flex;padding:4px 9px;border-radius:999px;background:#EAF5FC;color:#1B4A6E;font-size:12px;font-weight:700}.app-layout{display:grid;grid-template-columns:minmax(0,380px) 1fr;gap:24px;align-items:start}.app-copy{display:grid;gap:14px}.app-icon-line{display:flex;align-items:center;gap:12px}.faq-list{display:grid;gap:14px}.faq-item h2{font-size:16px;margin:0 0 8px}.site-footer{background:#1B4A6E;color:#E7F2FA;border-top:1px solid rgba(234,245,252,.25);font-size:13px;padding:40px 16px calc(34px + env(safe-area-inset-bottom))}.footer-inner{max-width:1120px;margin:0 auto}.footer-brand{display:grid;gap:12px;margin-bottom:28px}.footer-brand p{max-width:820px;margin:0;color:#E7F2FA}.footer-logo-row{display:flex;align-items:center;gap:10px}.footer-logo-row .brand-word{color:#fff}.footer-logo-row strong{font-size:16px;color:#fff}.footer-logo-row span{color:#D7EAF6}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;padding:24px 0;border-top:1px solid rgba(234,245,252,.18);border-bottom:1px solid rgba(234,245,252,.18)}.footer-grid h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-grid a{display:block;color:#E7F2FA;min-height:30px;padding:3px 0}.footer-bottom{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;padding-top:18px}.footer-bottom a{color:#E7F2FA}.page-overlay{position:fixed;z-index:1040;inset:0;background:rgba(22,50,74,.28);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-overlay.is-active{opacity:1;visibility:visible;pointer-events:auto}.drawer{position:fixed;z-index:1050;top:0;right:0;width:400px;max-width:86vw;height:100vh;overflow-y:auto;background:#fff;box-shadow:-18px 0 36px rgba(27,74,110,.14);transform:translateX(105%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s}.drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid rgba(74,163,224,.16);z-index:2}.drawer-brand{display:flex;align-items:center;gap:10px}.close-button{min-width:64px;min-height:40px;border:1px solid rgba(74,163,224,.42);background:#fff;color:#1B4A6E;border-radius:9px}.drawer-group{padding:14px 16px;border-bottom:1px solid rgba(74,163,224,.16)}.drawer-group h2{font-size:13px;color:#4E6A80;margin:0 0 8px}.drawer-group a{display:grid;grid-template-columns:72px 1fr;gap:8px;align-items:start;padding:10px 0;min-height:52px}.drawer-group strong{color:#16324A}.drawer-group span{color:#6E8899;font-size:13px;line-height:1.5}.search-panel{position:fixed;z-index:1060;top:82px;left:0;right:0;visibility:hidden;opacity:0;pointer-events:none;transition:.18s}.search-panel.is-open{visibility:visible;opacity:1;pointer-events:auto}.search-card{max-width:760px;margin:12px auto 0;padding:18px;background:#fff;border:1px solid rgba(74,163,224,.16);box-shadow:0 12px 28px rgba(27,74,110,.08);border-radius:14px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.search-head strong{font-size:16px;color:#16324A}.search-card label{display:block;margin-bottom:8px;color:#4E6A80}.search-card input{width:100%;min-height:44px;padding:0 12px;border:1px solid rgba(74,163,224,.42);border-radius:10px;color:#2A4156;background:#F5FAFE}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;padding:0 14px;border-radius:9px;background:#EAF5FC;color:#1B4A6E;display:inline-flex;align-items:center}.mobile-bottom{display:none}.muted{color:#6E8899}.lead{font-size:16px;color:#2A4156}.notice{background:#EAF5FC;border:1px solid rgba(74,163,224,.16);border-radius:12px;padding:16px}.compact-links{display:flex;flex-wrap:wrap;gap:10px}.compact-links a{min-height:40px;padding:0 14px;display:inline-flex;align-items:center;border:1px solid rgba(74,163,224,.42);border-radius:10px;background:#fff}.definition-list{display:grid;grid-template-columns:180px 1fr;gap:0;background:#fff;border:1px solid rgba(74,163,224,.16);border-radius:12px;overflow:hidden}.definition-list dt,.definition-list dd{margin:0;padding:14px 16px;border-bottom:1px solid rgba(74,163,224,.16)}.definition-list dt{font-weight:800;color:#16324A;background:#EAF5FC}.definition-list dd:last-child,.definition-list dt:nth-last-child(2){border-bottom:0}
@media (max-width:800px){.section-tabs{display:none}.site-main{padding-top:114px;padding-bottom:86px}.journal-inner{grid-template-columns:minmax(72px,1fr) auto minmax(72px,1fr);padding:0 12px;gap:8px}.drawer-button,.app-link{padding:0 12px}.header-logo{min-width:0}.brand-logo{max-width:94px}.three-grid,.two-grid,.four-grid,.app-layout{grid-template-columns:1fr}.feature-slot{height:170px}.banner-slot{height:220px}.wide-slot{height:190px}.app-slot{height:320px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.site-footer{padding-bottom:calc(88px + env(safe-area-inset-bottom))}.mobile-bottom{position:fixed;z-index:970;left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid rgba(74,163,224,.16);box-shadow:0 -8px 20px rgba(27,74,110,.08)}.mobile-bottom a{min-height:48px;display:flex;align-items:center;justify-content:center;font-size:13px;color:#1B4A6E}.mobile-bottom a.is-active{background:#4AA3E0;color:#fff}.search-panel{inset:0;background:#1B4A6E;top:0;padding:20px 16px;overflow-y:auto}.search-card{margin:0 auto;background:#1B4A6E;border:0;box-shadow:none;padding:0;color:#fff}.search-head strong,.search-card label{color:#fff}.search-card input{background:#fff;color:#16324A}.search-presets a{background:#fff;color:#1B4A6E}.search-panel .close-button{border-color:rgba(255,255,255,.48);background:transparent;color:#fff}.number-row,.shelf-row,.index-row{grid-template-columns:42px 1fr}.number-row a,.shelf-row a,.index-row a{grid-column:2}.definition-list{grid-template-columns:1fr}.definition-list dt{border-bottom:0}.definition-list dd{border-bottom:1px solid rgba(74,163,224,.16)}}
@media (max-width:520px){.site-main{padding-left:16px;padding-right:16px}.hero-copy{padding:20px}.banner-slot{height:190px}.feature-slot{height:160px}.wide-slot{height:170px}.footer-grid{grid-template-columns:1fr 1fr}.button-row{display:grid;grid-template-columns:1fr 1fr}.btn{padding:0 12px}.page-head h1,.hero-copy h1{font-size:24px}.section-title-row{align-items:start;flex-direction:column;gap:4px}}

.stack-gap{margin-top:16px}.stack-gap-lg{margin-top:18px}