:root{--bg:#F5FAFE;--deep:#E7F2FA;--card:#FFFFFF;--secondary:#D7EAF6;--title:#16324A;--text:#2A4156;--muted:#4E6A80;--soft:#6E8899;--brand:#4AA3E0;--bright:#6BB8EC;--navy:#1B4A6E;--mist:#EAF5FC;--border:rgba(74,163,224,.16);--strong-border:rgba(74,163,224,.42);--shadow:0 12px 28px rgba(27,74,110,.08);--radius:12px;--shell:1120px}
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8px}.masthead{height:60px;background:#fff;border-bottom:1px solid var(--border)}.masthead-inner{display:grid;grid-template-columns:1fr auto 1fr;gap:16px}.brand-mark{justify-self:start;display:flex;align-items:center;min-height:44px}.logo-image{height:28px;max-width:160px;object-fit:contain;object-position:center}.logo-fallback{font-size:22px;font-weight:800;color:var(--navy)}.mast-action{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px;border:1px solid var(--strong-border);border-radius:10px;color:var(--navy);background:#fff;font-size:14px}.drawer-open{justify-self:center}.app-link{justify-self:end;background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff;border-color:transparent}.tabbar{height:40px;background:var(--mist);border-bottom:1px solid var(--border)}.tabbar-inner{justify-content:center;gap:8px}.tab-link{height:30px;min-width:80px;padding:0 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var(--border);box-shadow:var(--shadow);border-radius:var(--radius)}.hero-card{padding:18px}.image-slot{width:100%;background:var(--mist);border:1px solid var(--border);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot:empty::after{content:"";display:block;min-height:inherit}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.hero-cover .image-slot{height:260px}.hero-copy{padding:20px 2px 6px}.hero-copy p{max-width:800px;margin:0 0 16px}.button-row{display:flex;flex-wrap:wrap;gap:10px}.btn{min-height:44px;padding:0 18px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#6BB8EC 0%,#4AA3E0 55%,#1B4A6E 100%);color:#fff}.btn-secondary{background:#fff;border:1px solid var(--strong-border);color:var(--navy)}.btn:hover,.btn:focus-visible,.mast-action:hover,.mast-action:focus-visible,.tab-link:hover,.tab-link:focus-visible{filter:brightness(.98);outline:2px solid rgba(74,163,224,.22);outline-offset:2px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.card,.index-card{padding:16px}.card .image-slot{height:180px;margin-bottom:14px}.feature .image-slot{height:200px}.number-list{display:grid;gap:10px;margin-top:14px}.number-row{display:grid;grid-template-columns:48px 1fr;gap:12px;align-items:start;padding:12px 0;border-top:1px solid var(--border)}.number{font-weight:900;font-size:22px;color:var(--brand);line-height:1}.rack{display:grid;gap:10px}.rack a{display:grid;grid-template-columns:120px 1fr auto;gap:16px;align-items:center;padding:14px 16px;background:#fff;border:1px solid var(--border);border-radius:10px}.rack a:hover{border-color:var(--strong-border)}.rack .tag{font-size:12px;color:var(--brand);font-weight:800}.rack .arrow{color:var(--brand)}.timeline{padding:18px 20px}.timeline-item{position:relative;padding:0 0 22px 30px}.timeline-item:last-child{padding-bottom:0}.timeline-item::before{content:"";position:absolute;left:8px;top:7px;width:9px;height:9px;border-radius:50%;background:var(--brand)}.timeline-item::after{content:"";position:absolute;left:12px;top:18px;bottom:0;width:1px;background:var(--secondary)}.timeline-item:last-child::after{display:none}.status{display:inline-flex;align-items:center;min-height:26px;padding:0 9px;border-radius:999px;background:var(--mist);color:var(--navy);font-size:12px;font-weight:700}.prose{max-width:860px}.prose p{margin:0 0 16px}.prose ul{margin:0 0 16px;padding-left:20px}.prose li{margin:6px 0}.article-card{padding:22px;margin-bottom:16px}.article-card p:last-child{margin-bottom:0}.kicker{font-size:12px;font-weight:800;color:var(--brand);margin-bottom:8px}.mini-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.mini-grid a,.mini-grid div{padding:14px;border-radius:10px;background:var(--mist);border:1px solid var(--border)}.notice{padding:14px 16px;border-left:4px solid var(--brand);background:var(--mist);border-radius:0 10px 10px 0;color:var(--navy)}.site-footer{background:var(--navy);color:#E7F2FA;border-top:1px solid rgba(234,245,252,.35);font-size:13px}.footer-top{padding:28px 0 84px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:20px}.footer-brand strong{font-size:16px}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.footer-grid h2{font-size:13px;color:#fff;margin:0 0 8px}.footer-grid a{display:block;padding:3px 0;color:#E7F2FA}.footer-note{margin:24px 0 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30px}.drawer-group{padding:10px 0}.drawer-group h2{font-size:13px;color:var(--soft);margin:0 0 6px}.drawer-group a{display:block;padding:12px;border-radius:10px}.drawer-group a:hover{background:var(--mist)}.drawer-group strong{display:block;color:var(--title);font-size:14px}.drawer-group span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:2px}.search-layer{position:fixed;top:82px;left:0;right:0;z-index:210;visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.search-layer.is-open{visibility:visible;opacity:1;pointer-events:auto}.search-card{background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);border-radius:0 0 14px 14px;padding:16px}.search-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;color:var(--title)}.search-card label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}.search-card input{width:100%;min-height:44px;border:1px solid var(--strong-border);border-radius:10px;padding:0 12px;color:var(--text);background:#fff}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:44px;display:inline-flex;align-items:center;padding:0 12px;border-radius:999px;background:var(--mist);color:var(--navy)}.mobile-bottom{display:none}.modal-open{overflow:hidden}.qa-list{display:grid;gap:12px}.faq-item{padding:18px}.faq-item h2{font-size:16px;margin:0 0 8px}.faq-item p{margin:0}.legal-stack{display:grid;gap:16px}.legal-block{padding:20px}.toc-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.toc-grid a{background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px;min-height:108px}.app-showcase{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:18px;align-items:stretch}.app-showcase .image-slot{height:360px}.icon-row{display:flex;align-items:center;gap:12px}.icon-row .image-slot{width:64px;height:64px;flex:0 0 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@media(max-width:860px){.grid-3,.grid-2,.mini-grid,.footer-grid,.toc-grid,.app-showcase{grid-template-columns:1fr}.rack a{grid-template-columns:96px 1fr}.site-main{padding-top:102px;padding-bottom:78px}.tabbar{display:none}.masthead-inner{grid-template-columns:auto 1fr auto;gap:8px}.drawer-open{justify-self:center}.mast-action{padding:0 12px}.hero-cover .image-slot{height:220px}.section{padding:18px 0}.footer-top{padding-bottom:92px}.mobile-bottom{position:fixed;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 var(--border);box-shadow:0 -8px 20px rgba(27,74,110,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;font-size:12px;color:var(--navy)}.mobile-bottom a.is-active{background:var(--brand);color:#fff}.search-layer{inset:0;background:var(--navy);padding:22px 0}.search-card{height:100%;border:0;border-radius:0;background:var(--navy);box-shadow:none;color:#fff;overflow:auto}.search-head,.search-card label{color:#fff}.search-card input{background:#fff}.search-presets a{background:#fff;color:var(--navy)}.search-close{color:#fff}.section-head{display:block}.section-head .btn{margin-top:10px}.app-showcase .image-slot{height:320px}}
@media(max-width:520px){.shell{width:min(calc(100% - 32px),var(--shell))}.finebar-brand{white-space:nowrap}.masthead{height:60px}.brand-mark{max-width:90px}.logo-image{max-width:92px}.mast-action{font-size:13px;padding:0 10px}.hero-cover .image-slot{height:190px}.card .image-slot{height:160px}.feature .image-slot{height:180px}.rack a{grid-template-columns:1fr auto}.rack .tag{grid-column:1/-1}.number-row{grid-template-columns:40px 1fr}.toc-grid{grid-template-columns:1fr 1fr}.app-showcase .image-slot{height:280px}}