html,body{font-family:dm sans,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,segoe ui,Roboto,helvetica neue,Arial,noto sans,sans-serif,apple color emoji,segoe ui emoji,segoe ui symbol,noto color emoji;min-height:100%;background:#fff;overscroll-behavior-y:none}:root{--bk-surface:#ffffff;--bk-surface-muted:#f9fafb;--bk-surface-accent:#eff6ff;--bk-text:#1f2937;--bk-text-strong:#111827;--bk-text-muted:#4b5563;--bk-border:#e5e7eb;--bk-border-strong:#d1d5db}.bk-help-site{-webkit-font-smoothing:antialiased}.bk-help-site #main-content{color:var(--bk-text)}.bk-page{min-height:100vh;display:flex;flex-direction:column;position:relative;isolation:isolate;overflow-x:clip}.bk-main{flex:1 0 auto;background:var(--bk-surface-muted)}.bk-shell{width:min(1100px,100% - 2rem);margin-inline:auto}.bk-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--bk-border);box-shadow:0 1px 2px rgba(0,0,0,4%)}.bk-header-inner{display:flex;align-items:center;justify-content:space-between;min-height:72px}.bk-brand{font-size:1.5rem;line-height:1;font-weight:700;color:var(--bk-text-strong);text-decoration:none}.bk-nav{display:flex;align-items:center;gap:1.25rem}.bk-appstore-link{display:inline-flex;align-items:center}.bk-appstore-badge{height:32px;width:auto;display:block}#main-content{position:relative;z-index:10;padding-bottom:2rem}.bk-home-hero{padding-top:2rem}.bk-home-hero-inner{display:flex;justify-content:center}.bk-home-icon{width:112px;height:112px;border-radius:24px;box-shadow:0 10px 25px rgba(17,24,39,.18)}.bk-home-recent{margin-top:1.25rem;margin-bottom:2rem;padding:0;background:0 0}.bk-home-grid{display:grid;gap:1rem;grid-template-columns:repeat(3,minmax(0,1fr))}.article-link--card{background:#fff;border:1px solid var(--bk-border);box-shadow:0 6px 18px rgba(17,24,39,6%);border-radius:.75rem;overflow:hidden}.bk-home-card{display:flex;flex-direction:column;transition:border-color 160ms ease,box-shadow 160ms ease,transform 160ms ease}.bk-home-card:hover{transform:translateY(-1px);border-color:var(--bk-border-strong);box-shadow:0 10px 24px rgba(17,24,39,8%)}.bk-home-card-body{display:flex;flex-direction:column;gap:.55rem;min-height:184px;padding:1rem}.bk-home-card-icon-wrap{display:flex;justify-content:flex-start;margin:0 0 .15rem}.bk-home-card-icon{width:2rem;height:2rem;color:#6b7280;flex-shrink:0}.bk-home-card:hover .bk-home-card-icon{color:#374151}.bk-recent-title{margin-top:.25rem!important;margin-bottom:.35rem!important;letter-spacing:-.01em;text-align:center;font-size:clamp(2rem,3.4vw,2.6rem);line-height:1.08;font-weight:700}.bk-recent-intro{margin:0 auto 2.35rem;max-width:640px;color:var(--bk-text-muted);font-size:1rem;text-align:center}.bk-home-card-title{margin:0;line-height:1.3;font-size:1.05rem;font-weight:700}.bk-home-card-title a{color:var(--bk-text-strong);text-decoration:none}.bk-home-card-title a:hover{text-decoration:underline;text-underline-offset:2px}.bk-card-summary{margin:0;color:var(--bk-text-muted);font-size:.92rem;line-height:1.45}.bk-home-meta{margin-top:auto;font-size:.82rem;color:#6b7280;display:flex;gap:.4rem;align-items:center}.bk-home-meta--actions{flex-wrap:wrap;gap:.5rem;width:100%}.bk-recent-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:.55rem 1.1rem;border-radius:.5rem;border:1px solid var(--bk-border-strong);background:#fff;color:var(--bk-text-strong);text-decoration:none;font-weight:600}.bk-recent-cta:hover{background:#f9fafb;border-color:#9ca3af}.bk-recent-cta--card-primary{width:100%;box-sizing:border-box}.bk-breadcrumbs{margin:0 0 .75rem;font-size:.875rem;line-height:1.4;color:#6b7280}.bk-breadcrumbs-list{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.25rem .5rem;align-items:center}.bk-breadcrumbs-item{display:inline-flex;align-items:center}.bk-breadcrumbs-item+.bk-breadcrumbs-item::before{content:"/";margin-right:.5rem;color:#9ca3af}.bk-breadcrumbs-item a{color:var(--bk-text-muted);text-decoration:none}.bk-breadcrumbs-item a:hover{text-decoration:underline}.bk-breadcrumbs-item--current span{color:var(--bk-text-strong);font-weight:500}.bk-guide-page{width:min(920px,100% - 2rem);margin:1rem auto 2.5rem}.bk-guide-header{margin-bottom:1.5rem}.bk-guide-title{margin:0;font-size:clamp(1.9rem,3vw,2.6rem);line-height:1.08;font-weight:700;letter-spacing:-.02em;color:var(--bk-text-strong)}.bk-guide-subtitle{margin:.5rem 0 0;max-width:42rem;font-size:1rem;line-height:1.5;color:var(--bk-text-muted)}.bk-automation-prose{max-width:42rem;font-size:1.04rem;line-height:1.8;color:var(--bk-text)}.bk-automation-prose p{margin:0 0 1rem}.bk-callout{margin:1.5rem 0 2rem;padding:1.1rem 1.15rem;border:1px solid #bfdbfe;border-radius:.9rem;background:var(--bk-surface-accent)}.bk-callout-title,.bk-section-title,.bk-faq-title{margin:0 0 .75rem;font-size:1.2rem;line-height:1.2;font-weight:700;letter-spacing:-.01em;color:var(--bk-text-strong)}.bk-callout-list{margin:0;padding-left:1.2rem}.bk-callout-list li{margin-bottom:.45rem;color:var(--bk-text)}.bk-guide-steps-header{margin-bottom:1rem}.bk-section-intro{margin:0;color:var(--bk-text-muted);line-height:1.6}.bk-guide-flow{width:100vw;max-width:none;margin-left:calc(50% - 50vw);margin-right:calc(50% - 50vw);margin-top:1.25rem}.bk-split-row{display:grid;grid-template-columns:1fr;gap:1.25rem;align-items:start;margin-bottom:0;padding:1.65rem max(1rem,calc((100vw - 960px)/2))2.1rem}.bk-split-row--band-0{background:#fff}.bk-split-row--band-1{background:#f3f4f6}.bk-split-text{position:relative;padding-left:2.75rem;max-width:44rem}.bk-walkthrough-step-num{position:absolute;left:0;top:.1rem;width:1.85rem;height:1.85rem;display:grid;place-items:center;font-size:.9rem;font-weight:700;color:#111827;background:#f3f4f6;border:1px solid #e5e7eb;border-radius:.45rem}.bk-step-title{margin:0 0 .45rem;color:var(--bk-text-strong);font-size:1.08rem;line-height:1.3;font-weight:700;letter-spacing:-.01em}.bk-walkthrough-copy{margin:0;font-size:1.04rem;line-height:1.8;color:var(--bk-text)}.bk-walkthrough-copy p{margin:0 0 .65em}.bk-walkthrough-copy p:last-child{margin-bottom:0}.bk-walkthrough-copy strong{font-weight:600;color:#111827}.bk-faq{margin-top:2rem}.bk-faq-title{margin:0 0 1.5rem;font-size:clamp(1.5rem,2.5vw,2.25rem);font-weight:700;letter-spacing:-.02em;color:#111827}.bk-faq-list{border-top:1px solid #e5e7eb}.bk-faq-item{border-bottom:1px solid #e5e7eb;padding:1.25rem 0}.bk-faq-item[open] .bk-faq-toggle{transform:rotate(45deg)}.bk-faq-summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem;font-size:1rem;font-weight:500;color:#111827;line-height:1.45}.bk-faq-summary::-webkit-details-marker{display:none}.bk-faq-toggle{flex-shrink:0;font-size:1.5rem;line-height:1;color:#6b7280;transition:transform .2s ease}.bk-faq-answer{margin:1.25rem 0 0;padding:0;font-size:1.04rem;line-height:1.8;color:var(--bk-text-muted)}.bk-faq-answer p{margin:0 0 .75em}.bk-faq-answer a{color:#111827;text-decoration:underline;text-underline-offset:2px;font-weight:500}.bk-faq-answer a:hover{text-decoration:none}.bk-split-figure{margin:0;display:flex;flex-direction:column;align-items:center;gap:.65rem}.bk-phone-shell{position:relative;width:210px;max-width:100%;border-radius:30px;background:#0f1115;padding:9px;box-shadow:0 14px 30px rgba(0,0,0,.18)}.bk-phone-notch{position:absolute;top:9px;left:50%;transform:translateX(-50%);width:72px;height:14px;border-bottom-left-radius:10px;border-bottom-right-radius:10px;background:#0f1115;z-index:2}.bk-phone-screen{border-radius:22px;overflow:hidden;background:#fff}.bk-phone-screen img{display:block;width:100%;height:auto;vertical-align:middle}.bk-placeholder-caption{margin:0;font-size:.78rem;line-height:1.4;color:#6b7280}@media(max-width:960px){.bk-home-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:767px){.bk-home-grid{grid-template-columns:1fr}.bk-split-row{padding-top:1.35rem;padding-bottom:1.75rem}.bk-split-text{padding-left:2.45rem}.bk-walkthrough-step-num{width:1.75rem;height:1.75rem;font-size:.85rem}}@media(min-width:768px){.bk-split-row{grid-template-columns:minmax(0,1fr)300px;column-gap:2rem;align-items:center}.bk-split-row .bk-split-figure{order:2;justify-content:flex-start}.bk-split-row .bk-split-text{order:1}.bk-split-row--reverse{grid-template-columns:300px minmax(0,1fr)}.bk-split-row--reverse .bk-split-figure{order:1}.bk-split-row--reverse .bk-split-text{order:2}.bk-phone-shell{width:230px}}@media(max-width:560px){.bk-header-inner{min-height:68px}.bk-brand{font-size:1.25rem}.bk-appstore-badge{height:28px}}