.oakb-client{--oa-blue:#0648d8;--oa-blue-dark:#042d91;--oa-ink:#0d1933;--oa-muted:#66708a;--oa-border:#dce6f5;--oa-soft:#f3f7ff;font-family:Inter,Arial,sans-serif;color:var(--oa-ink);max-width:1240px;margin:0 auto 40px;background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 16px 50px rgba(8,45,120,.08)}
.oakb-client a{text-decoration:none}.oakb-client-nav{display:flex;align-items:center;justify-content:space-between;padding:18px 34px;border:1px solid var(--oa-border);border-bottom:0;background:#fff}.oakb-client-brand{display:flex;align-items:center;gap:12px;color:var(--oa-ink);font-weight:800;font-size:22px}.oakb-client-brand img{height:42px;width:auto}.oakb-client-nav nav{display:flex;align-items:center;gap:24px}.oakb-client-nav nav a{color:#111d3b;font-weight:700}.oakb-client-nav nav a.active{color:var(--oa-blue);border-bottom:3px solid var(--oa-blue);padding-bottom:10px}.oakb-client-button,.oakb-main-cta{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border:1px solid var(--oa-border);border-radius:10px;background:#fff;color:var(--oa-blue)!important;font-weight:800;box-shadow:0 8px 20px rgba(10,50,120,.05)}
.oakb-hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(300px,.75fr);gap:30px;align-items:center;min-height:350px;padding:46px 48px;background:radial-gradient(circle at 90% 50%,#fff 0,#eaf3ff 42%,#f7fbff 100%);position:relative;overflow:hidden;border-left:1px solid var(--oa-border);border-right:1px solid var(--oa-border)}.oakb-hero:before,.oakb-hero:after{content:"";position:absolute;border-radius:999px;border:28px solid rgba(6,72,216,.08);width:430px;height:430px}.oakb-hero:before{left:-260px;top:-150px}.oakb-hero:after{right:-180px;bottom:-210px}.oakb-hero>*{position:relative;z-index:1}.oakb-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--oa-border);border-radius:999px;padding:8px 13px;color:var(--oa-blue);font-weight:800;box-shadow:0 8px 22px rgba(6,72,216,.08)}.oakb-pill:before{content:"";width:10px;height:10px;border-radius:50%;background:var(--oa-blue)}.oakb-hero h1{margin:18px 0 10px;font-size:56px;line-height:1.04;letter-spacing:-2px}.oakb-hero h1 strong{color:var(--oa-blue)}.oakb-hero p{font-size:18px;color:var(--oa-muted);max-width:640px;line-height:1.55}.oakb-search{display:flex;gap:12px;max-width:640px;margin-top:22px;background:#fff;border:1px solid var(--oa-border);border-radius:14px;padding:8px;box-shadow:0 15px 35px rgba(12,40,100,.12)}.oakb-search input{flex:1;border:0;outline:none;font-size:16px;padding:14px 16px;color:var(--oa-ink)}.oakb-search button{border:0;border-radius:10px;background:linear-gradient(135deg,var(--oa-blue),var(--oa-blue-dark));color:#fff;font-weight:800;padding:0 28px}.oakb-popular-searches{display:flex;flex-wrap:wrap;gap:14px;margin-top:16px;color:var(--oa-muted);font-size:14px}.oakb-popular-searches a{color:var(--oa-blue);font-weight:700}.oakb-hero-mascot{text-align:center}.oakb-hero-mascot img{max-height:315px;filter:drop-shadow(0 20px 30px rgba(4,45,145,.18))}
.oakb-section{padding:22px 38px;border-left:1px solid var(--oa-border);border-right:1px solid var(--oa-border)}.oakb-category-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}.oakb-category-card,.oakb-article-card,.oakb-list-item,.oakb-browse-panel{background:#fff;border:1px solid var(--oa-border);border-radius:14px;box-shadow:0 10px 26px rgba(8,45,120,.05)}.oakb-category-card{display:grid;grid-template-columns:56px 1fr;gap:8px 14px;padding:18px;color:var(--oa-ink);transition:.15s transform,.15s box-shadow}.oakb-category-card:hover,.oakb-article-card:hover,.oakb-list-item:hover{transform:translateY(-2px);box-shadow:0 16px 35px rgba(8,45,120,.1)}.oakb-category-image-wrap{display:flex;align-items:center;justify-content:center;grid-row:span 2;width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,#e9f2ff,#fff);overflow:hidden;border:1px solid #e5eefb}.oakb-category-image{max-width:48px;max-height:48px;object-fit:contain}.oakb-category-image-wrap .oakb-category-icon{display:none}.oakb-img-missing .oakb-category-image{display:none}.oakb-img-missing .oakb-category-icon{display:flex}.oakb-category-icon{align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#e9f2ff,#fff);color:var(--oa-blue);font-weight:900}.oakb-category-card strong{font-size:15px}.oakb-category-card small{color:var(--oa-muted);line-height:1.35}.oakb-section-head{display:flex;justify-content:space-between;align-items:center}.oakb-section-head h2,.oakb-browse-panel h2{margin:0 0 16px;font-size:24px}.oakb-section-head h2:after{content:"";display:block;width:34px;height:4px;border-radius:999px;background:var(--oa-blue);margin-top:8px}.oakb-section-head a{color:var(--oa-blue);font-weight:800}.oakb-article-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}.oakb-article-card{padding:18px;color:var(--oa-ink);min-height:165px;display:flex;flex-direction:column}.oakb-doc-icon{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;background:#eff5ff;color:var(--oa-blue);font-weight:900;margin-bottom:10px}.oakb-article-card strong{font-size:15px;line-height:1.25}.oakb-article-card p{color:var(--oa-muted);font-size:13px;line-height:1.45;flex:1}.oakb-article-card footer{display:flex;justify-content:space-between;color:var(--oa-muted);border-top:1px solid var(--oa-border);padding-top:10px;font-size:12px}.oakb-article-card footer span:first-child{color:var(--oa-blue);font-weight:800}.oakb-chip-row{display:flex;flex-wrap:wrap;gap:10px}.oakb-chip-row a{color:var(--oa-ink);padding:10px 12px;border:1px solid var(--oa-border);border-radius:10px;background:#fff;font-weight:700}.oakb-chip-row span{display:inline-flex;margin-left:6px;padding:2px 7px;border-radius:8px;background:#edf4ff;color:var(--oa-blue)}.oakb-empty{padding:28px;border:1px dashed var(--oa-border);border-radius:14px;color:var(--oa-muted);background:#f9fbff;grid-column:1/-1}
.oakb-inner-hero{padding:40px 48px;background:linear-gradient(135deg,#f8fbff,#eaf3ff);border:1px solid var(--oa-border);border-bottom:0}.oakb-inner-hero h1{margin:12px 0;font-size:38px}.oakb-back{color:var(--oa-blue);font-weight:800}.oakb-list{display:grid;gap:14px}.oakb-list-item{display:flex;gap:18px;padding:18px 20px;color:var(--oa-ink)}.oakb-list-item strong{font-size:18px}.oakb-list-item p{margin:6px 0;color:var(--oa-muted);line-height:1.45}.oakb-list-item small{color:var(--oa-muted)}.oakb-article-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:28px;padding:34px 38px;border-left:1px solid var(--oa-border);border-right:1px solid var(--oa-border)}.oakb-article-main{background:#fff;border:1px solid var(--oa-border);border-radius:16px;padding:34px;box-shadow:0 12px 30px rgba(8,45,120,.05)}.oakb-article-meta{color:var(--oa-blue);font-weight:800;margin-top:18px}.oakb-article-main h1{font-size:40px;letter-spacing:-1px;margin:12px 0}.oakb-article-summary{font-size:18px;color:var(--oa-muted);border-bottom:1px solid var(--oa-border);padding-bottom:18px}.oakb-content{font-size:16px;line-height:1.75;color:#17213a}.oakb-content img{max-width:100%;height:auto}.oakb-content pre{background:#101b32;color:#fff;border-radius:12px;padding:16px;overflow:auto}.oakb-article-side{display:grid;gap:18px;align-content:start}.oakb-help-card,.oakb-related-card{background:#fff;border:1px solid var(--oa-border);border-radius:16px;padding:22px;box-shadow:0 12px 30px rgba(8,45,120,.05)}.oakb-help-card{text-align:center}.oakb-help-card img{max-height:150px}.oakb-related-card a{display:block;color:var(--oa-ink);padding:10px 0;border-top:1px solid var(--oa-border);font-weight:700}.oakb-main-cta{background:linear-gradient(135deg,var(--oa-blue),var(--oa-blue-dark));color:#fff!important;border:0;margin-top:8px}.oakb-footer{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding:38px 48px;background:linear-gradient(135deg,#0648d8,#042d91);color:#fff}.oakb-footer img{height:46px;filter:brightness(0) invert(1)}.oakb-footer p{max-width:300px;color:rgba(255,255,255,.78)}.oakb-footer h4{margin:0 0 14px}.oakb-footer a{display:block;color:rgba(255,255,255,.82);margin:8px 0}
@media (max-width:1000px){.oakb-client-nav,.oakb-hero,.oakb-article-layout,.oakb-footer{grid-template-columns:1fr;display:grid}.oakb-client-nav nav{flex-wrap:wrap}.oakb-category-grid,.oakb-article-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.oakb-hero h1{font-size:42px}.oakb-hero-mascot img{max-height:240px}}@media (max-width:640px){.oakb-client{border-radius:0}.oakb-client-nav,.oakb-hero,.oakb-section,.oakb-inner-hero,.oakb-article-layout,.oakb-footer{padding-left:18px;padding-right:18px}.oakb-category-grid,.oakb-article-grid{grid-template-columns:1fr}.oakb-search{flex-direction:column}.oakb-search button{padding:14px}.oakb-hero h1{font-size:34px}}

.oakb-category-page-title{display:flex;align-items:center;gap:18px}.oakb-category-page-title img{width:76px;height:76px;object-fit:contain;border-radius:18px;background:#fff;border:1px solid var(--oa-border);padding:10px;box-shadow:0 10px 24px rgba(8,45,120,.07)}.oakb-category-page-title h1{margin:0 0 8px!important}