.hdkb-root{font-family:inherit;color:#17213a;max-width:1240px;margin:0 auto;padding:16px 18px 65px;box-sizing:border-box}.hdkb-root *, .hdkb-feedback *{box-sizing:border-box}.hdkb-hero{padding:56px 36px;text-align:center;border-radius:24px;background:linear-gradient(125deg,#f2f5ff,#f8f7ff 55%,#eaf5ff);border:1px solid #e0e6f5;margin:12px 0 36px}.hdkb-eyebrow{font-size:12px;letter-spacing:2px;font-weight:800;color:var(--hdkb-accent);margin-bottom:14px}.hdkb-hero h1{font-size:clamp(30px,4vw,48px);line-height:1.15;margin:0 0 14px;color:#17213a}.hdkb-hero p{font-size:17px;color:#59667b;margin:0 auto 25px;max-width:720px}.hdkb-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.hdkb-btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;padding:13px 22px;border-radius:10px;text-decoration:none!important;font-weight:700;transition:transform .15s,box-shadow .15s}.hdkb-btn:hover{transform:translateY(-2px)}.hdkb-btn.is-primary{background:var(--hdkb-accent,#6554db);color:#fff!important}.hdkb-btn.is-secondary{background:#fff;color:#273553!important;border:1px solid #dce1ec}.hdkb-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px}.hdkb-section{min-width:0;grid-column:span 12}.hdkb-span-9{grid-column:span 9}.hdkb-span-8{grid-column:span 8}.hdkb-span-6{grid-column:span 6}.hdkb-span-4{grid-column:span 4}.hdkb-span-3{grid-column:span 3}.hdkb-section>h2{font-size:24px;line-height:1.3;margin:0 0 18px;color:#17213a}.hdkb-articles,.hdkb-categories{display:grid;grid-template-columns:repeat(var(--hdkb-cols,3),minmax(0,1fr));gap:17px}.hdkb-article{display:flex;flex-direction:column;overflow:hidden;border:1px solid #e3e8f1;border-radius:15px;background:#fff;color:inherit!important;text-decoration:none!important;box-shadow:0 5px 18px #1826470b;transition:transform .15s}.hdkb-article:hover{transform:translateY(-3px)}.hdkb-cover{aspect-ratio:16/9;overflow:hidden;background:#edf0f8}.hdkb-cover img{width:100%;height:100%;object-fit:cover}.hdkb-article-body{padding:19px;display:flex;flex:1;flex-direction:column}.hdkb-article h3{font-size:18px;line-height:1.35;margin:0 0 9px;color:#17213a}.hdkb-article p{font-size:14px;line-height:1.6;color:#69758a;margin:0 0 16px}.hdkb-article-body>span{font-size:14px;font-weight:700;color:var(--hdkb-accent,#6554db);margin-top:auto}.hdkb-text{background:#fff;border:1px solid #e3e8f1;border-radius:15px;padding:24px}.hdkb-faq{border:1px solid #e3e8f1;border-radius:12px;background:#fff;margin:10px 0;padding:16px 20px}.hdkb-faq summary{cursor:pointer;font-weight:700}.hdkb-faq>div{padding-top:12px;color:#59667b}.hdkb-category-card{display:flex;flex-direction:column;gap:8px;padding:22px;border:1px solid #e2e6f1;border-radius:15px;background:#fff;text-decoration:none!important;color:#24304a!important;box-shadow:0 5px 18px #1826470b;transition:transform .15s}.hdkb-category-card:hover{transform:translateY(-3px)}.hdkb-category-icon{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:#f3f2ff;font-size:25px}.hdkb-category-card strong{font-size:17px}.hdkb-category-description{font-size:13px;color:#59667b;line-height:1.45}.hdkb-category-card small{font-size:12px;color:var(--hdkb-accent,#6554db);margin-top:auto}.hdkb-video-frame{position:relative;aspect-ratio:16/9;background:#1b2339;border-radius:16px;overflow:hidden}.hdkb-video-frame iframe{width:100%;height:100%;border:0;display:block}.hdkb-video-caption{margin-top:12px;color:#59667b}.hdkb-banner{display:flex;align-items:stretch;border:1px solid #dce4ee;border-radius:20px;overflow:hidden;background:var(--hdkb-banner-bg,#eef1ff)}.hdkb-banner-image{flex:0 0 35%;min-height:170px}.hdkb-banner-image img{width:100%;height:100%;object-fit:cover}.hdkb-banner-inner{padding:28px;flex:1;min-width:0}.hdkb-banner-inner .hdkb-actions{justify-content:flex-start;margin-top:18px}.hdkb-more-wrap{display:flex;justify-content:center;margin-top:18px}.hdkb-more{padding:11px 24px;background:#fff;border:1px solid var(--hdkb-accent,#6554db);border-radius:10px;color:var(--hdkb-accent,#6554db);cursor:pointer;font-size:14px;font-weight:700}.hdkb-more:hover{background:#f8f7ff}.hdkb-more:disabled{opacity:.55;cursor:wait}
.hdkb-search{position:relative;max-width:690px;margin:0 auto 24px;text-align:left}.hdkb-search-input{width:100%;border:1px solid #cbd5e5!important;border-radius:13px!important;background:#fff!important;color:#17213a!important;font-size:16px!important;padding:17px 20px!important;box-shadow:0 8px 24px #17213a12;outline-offset:2px}.hdkb-search-category{display:block;margin:9px 0 0 auto;max-width:260px!important;width:100%;border:1px solid #dce1ec!important;background:#fff!important;border-radius:9px!important;padding:7px 9px!important;color:#263450!important;font-size:13px!important}.hdkb-filter-label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}.hdkb-search-results{position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:30;background:#fff;border:1px solid #dce1ec;border-radius:13px;box-shadow:0 15px 35px #17213a22;padding:12px;max-height:380px;overflow:auto;color:#59667b}.hdkb-search-results[hidden]{display:none}.hdkb-search-hit{display:block;padding:12px;border-radius:8px;text-decoration:none!important;color:#17213a!important}.hdkb-search-hit:hover,.hdkb-search-hit:focus,.hdkb-search-hit.is-active{background:#f2f5ff}.hdkb-search-hit strong,.hdkb-search-hit span{display:block}.hdkb-search-hit span{font-size:13px;color:#59667b;margin-top:4px}.hdkb-search-hit mark{background:#fff0b4;color:inherit;border-radius:2px}.hdkb-root .screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px)}
.hdkb-feedback{margin:32px 0 16px;padding:22px;border:1px solid #e0e6f5;border-radius:15px;background:#f8faff;text-align:center;color:#17213a}.hdkb-feedback strong{display:block;margin:0 0 14px;font-size:17px}.hdkb-feedback-actions{display:flex;justify-content:center;gap:12px}.hdkb-feedback-actions button{border:1px solid #d5dbee;background:#fff;border-radius:9px;padding:10px 20px;font-size:14px;cursor:pointer}.hdkb-feedback-actions button:hover:not(:disabled){border-color:#6554db}.hdkb-feedback-actions button:disabled{opacity:.55;cursor:default}.hdkb-feedback-msg{font-size:13px;margin-top:10px;min-height:18px;color:#59667b}
@media(max-width:900px){.hdkb-section{grid-column:span 12}.hdkb-tablet-9{grid-column:span 9}.hdkb-tablet-8{grid-column:span 8}.hdkb-tablet-6{grid-column:span 6}.hdkb-tablet-4{grid-column:span 4}.hdkb-tablet-3{grid-column:span 3}.hdkb-articles,.hdkb-categories{grid-template-columns:repeat(var(--hdkb-cols-tablet,2),minmax(0,1fr))}}
@media(max-width:580px){.hdkb-root{padding:10px 12px 45px}.hdkb-hero{padding:35px 18px}.hdkb-section{grid-column:span 12}.hdkb-mobile-9{grid-column:span 9}.hdkb-mobile-8{grid-column:span 8}.hdkb-mobile-6{grid-column:span 6}.hdkb-mobile-4{grid-column:span 4}.hdkb-mobile-3{grid-column:span 3}.hdkb-articles,.hdkb-categories{grid-template-columns:repeat(var(--hdkb-cols-mobile,1),minmax(0,1fr))}.hdkb-btn{width:100%}.hdkb-banner{flex-direction:column}.hdkb-banner-image{min-height:180px;max-height:240px}.hdkb-banner-inner{padding:20px}}

/* v1.3: professional knowledge center layout, with separate columns of article lists. */
.hdkb-layout-three .hdkb-grid{align-items:start;gap:22px}
.hdkb-layout-three .hdkb-grid>.hdkb-section{grid-column:span 4;min-width:0}
.hdkb-layout-three .hdkb-section>h2{font-size:19px;line-height:1.3;margin:0;padding:0 0 15px;border-bottom:2px solid #e5eaf3}
.hdkb-layout-three .hdkb-articles,.hdkb-layout-three .hdkb-categories{grid-template-columns:minmax(0,1fr)}
.hdkb-articles{align-items:start}
.hdkb-article.hdkb-guide-item{display:flex;flex-direction:row;align-items:flex-start;gap:12px;padding:15px 12px;border:1px solid #e2e8f1;border-radius:12px;box-shadow:none;transition:background-color .15s,border-color .15s,transform .15s;min-width:0}
.hdkb-article.hdkb-guide-item:hover,.hdkb-article.hdkb-guide-item:focus-visible{background:#f8faff;border-color:#c9d2e4;transform:translateY(-1px)}
.hdkb-guide-icon{display:flex;flex:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;background:#f1f2ff;color:var(--hdkb-accent,#6554db)}
.hdkb-guide-thumb{width:48px;height:48px;flex:none;overflow:hidden;border-radius:9px;background:#f1f2ff}
.hdkb-guide-thumb img{width:100%;height:100%;display:block;object-fit:cover}
.hdkb-guide-body{display:flex;flex:1;flex-direction:column;gap:6px;min-width:0}
.hdkb-guide-title{font-size:15px;font-weight:750;line-height:1.35;color:#1b2845;overflow-wrap:anywhere}
.hdkb-guide-excerpt{font-size:13px;line-height:1.5;color:#56647b;overflow-wrap:anywhere}
.hdkb-guide-meta{font-size:11px;color:#788399;line-height:1.35;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.hdkb-guide-chevron{color:var(--hdkb-accent,#6554db);font-size:20px;line-height:1.1;font-weight:700;margin-left:auto;flex:none;opacity:.72}
.hdkb-layout-three .hdkb-section.hdkb-type-articles,.hdkb-layout-three .hdkb-section.hdkb-type-featured{background:#fff;border:1px solid #e3e8f1;border-radius:17px;padding:19px;box-shadow:0 7px 25px #1826470b}
.hdkb-layout-three .hdkb-guide-item{border:0;border-bottom:1px solid #edf0f5;border-radius:0;padding:14px 0}
.hdkb-layout-three .hdkb-guide-item:last-child{border-bottom:0}
.hdkb-layout-three .hdkb-guide-item:hover{border-color:#edf0f5;background:#f8faff}
.hdkb-layout-three .hdkb-articles{gap:0}
.hdkb-layout-three .hdkb-more-wrap{margin-top:14px}
.hdkb-layout-three .hdkb-more{width:100%}
@media (max-width: 940px){.hdkb-layout-three .hdkb-grid>.hdkb-section{grid-column:span 6}}
@media (max-width: 620px){.hdkb-layout-three .hdkb-grid>.hdkb-section{grid-column:span 12}.hdkb-layout-three .hdkb-grid{gap:18px}.hdkb-layout-three .hdkb-section.hdkb-type-articles,.hdkb-layout-three .hdkb-section.hdkb-type-featured{padding:17px}}

/* v1.4 – Search field and category selector in the same row, desktop and mobile. */
.hdkb-root .hdkb-search{max-width:860px;width:100%}
.hdkb-root .hdkb-search-controls{display:flex;align-items:stretch;gap:10px;width:100%;min-width:0}
.hdkb-root .hdkb-search-controls .hdkb-search-input{flex:1 1 auto;width:0!important;min-width:0;max-width:none;height:55px!important;margin:0!important}
.hdkb-root .hdkb-search-controls .hdkb-search-category{flex:0 0 232px;max-width:232px!important;width:232px!important;min-width:0;height:55px!important;margin:0!important;border:1px solid #cbd5e5!important;border-radius:13px!important;font-size:14px!important;box-shadow:0 8px 24px #17213a12;padding:0 12px!important;line-height:1.3}
@media(max-width:620px){
 .hdkb-root .hdkb-search-controls{gap:7px}
 .hdkb-root .hdkb-search-controls .hdkb-search-input{font-size:14px!important;padding:10px 11px!important}
 .hdkb-root .hdkb-search-controls .hdkb-search-category{flex:0 0 42%;width:42%!important;max-width:42%!important;padding:0 6px!important;font-size:12px!important}
}

/* v1.5: section cover image, independent from article thumbnails. */
.hdkb-root .hdkb-section-cover{overflow:hidden;width:100%;margin:0 0 16px;border-radius:12px;background:#f1f4fa;aspect-ratio:16/9}
.hdkb-root .hdkb-section-cover-img{display:block!important;width:100%!important;height:100%!important;max-width:none!important;object-fit:cover!important;object-position:center}
.hdkb-root .hdkb-section-cover+h2{margin-top:0}