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var(--color-hairline)}.kb-item{display:block;border-block-end:1px solid var(--color-hairline)}.kb-item__inner{position:relative;display:grid;grid-template-columns:1fr;gap:var(--space-4);padding-block:clamp(var(--space-8),4vw,var(--space-12));transition:opacity var(--transition-normal)}@media(min-width:760px){.kb-item__inner{grid-template-columns:minmax(0,auto) minmax(0,1fr);column-gap:clamp(var(--space-8),5vw,var(--space-16));align-items:start}}.kb-item__index{color:var(--color-hairline);font-size:clamp(2.5rem,6vw,var(--text-8xl));transition:color var(--transition-normal)}.kb-item__inner:hover .kb-item__index{color:var(--color-secondary)}.kb-item__body{min-width:0}.kb-item__caps{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-3) var(--space-4);margin-bottom:var(--space-4)}.kb-item__category{color:var(--color-secondary)}.kb-item__readtime,.kb-item__source{position:relative;padding-inline-start:var(--space-4)}.kb-item__readtime:before,.kb-item__source:before{content:"";position:absolute;inset-inline-start:0;inset-block:12%;width:1px;background:var(--color-hairline)}.kb-item__title{font-size:clamp(var(--text-2xl),3vw,var(--text-4xl));line-height:var(--leading-tight);letter-spacing:-.02em;color:var(--color-ink);margin:0 0 var(--space-4);max-inline-size:26ch}.kb-item__link{color:inherit;text-decoration:none;transition:color var(--transition-normal)}.kb-item__link:after{content:"";position:absolute;inset:0}.kb-item__link:hover{color:var(--color-secondary)}.kb-item__excerpt{font-size:var(--text-lg);line-height:var(--leading-relaxed);color:var(--color-muted);margin:0 0 var(--space-5);max-inline-size:62ch}.kb-item__cta{position:relative;z-index:1;display:inline-flex;align-items:center;gap:var(--space-2);font-weight:var(--font-semibold);font-size:var(--text-sm);color:var(--color-secondary);text-decoration:none}.kb-item__arrow{transition:transform var(--transition-normal)}.kb-item__inner:hover .kb-item__arrow{transform:translate(-4px)}.kb-empty{text-align:center;padding-block:clamp(var(--space-12),8vw,var(--space-20));border-block:1px solid var(--color-hairline)}.kb-empty h3{font-size:var(--text-2xl);color:var(--color-ink);margin-bottom:var(--space-2)}.kb-empty p{color:var(--color-muted);margin-bottom:var(--space-6)}.kb-faq{background:var(--color-page);border-block-start:1px solid var(--color-hairline)}.kb-faq__sub{margin:0}.kb-faq__list{max-inline-size:80ch;border-block-start:1px solid var(--color-hairline)}.kb-faq__item{border-block-end:1px solid var(--color-hairline)}.kb-faq__q{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding-block:clamp(var(--space-5),2.5vw,var(--space-8));font-size:clamp(var(--text-lg),2vw,var(--text-2xl));font-weight:var(--font-medium);color:var(--color-ink);cursor:pointer;list-style:none;transition:color var(--transition-normal)}.kb-faq__q:hover{color:var(--color-secondary)}.kb-faq__q::-webkit-details-marker{display:none}.kb-faq__q:after{content:"+";font-family:var(--font-mono);font-weight:var(--font-regular);font-size:var(--text-2xl);line-height:1;color:var(--color-secondary);flex-shrink:0;transition:transform var(--transition-normal)}.kb-faq__item[open]>.kb-faq__q{color:var(--color-secondary)}.kb-faq__item[open] .kb-faq__q:after{content:"−"}.kb-faq__a{margin:0;padding-block-end:clamp(var(--space-5),2.5vw,var(--space-8));max-inline-size:72ch;font-size:var(--text-lg);line-height:var(--leading-relaxed);color:var(--color-text)}.kb-cta{background:var(--color-surface);padding-block-end:clamp(var(--space-16),9vw,var(--space-24))}.kb-cta__inner{position:relative;overflow:hidden;background:var(--color-primary);border-radius:var(--radius-2xl);padding:clamp(var(--space-12),8vw,var(--space-24))}.kb-cta__content{position:relative;z-index:1;max-inline-size:60ch}.kb-cta__title{color:var(--color-white);font-size:clamp(2.25rem,5vw,3.75rem);line-height:1.05;letter-spacing:-.03em;margin-bottom:var(--space-5)}.kb-cta__text{color:var(--color-gray-300);font-size:var(--text-lg);line-height:var(--leading-relaxed);margin-bottom:var(--space-8)}.kb-cta__text strong{color:var(--color-white);font-weight:var(--font-semibold)}.kb-cta__actions{display:flex;flex-wrap:wrap;gap:var(--space-4)}@media(max-width:760px){.kb-pagehead__stats{grid-template-columns:repeat(2,1fr);gap:var(--space-6)}}@media(max-width:768px){.kb-filters{position:static}.kb-tabs{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-block-end:var(--space-1)}.kb-tab{flex-shrink:0}}@media(max-width:600px){.kb-search{max-width:100%}.kb-cta__actions{flex-direction:column;align-items:stretch}.kb-cta__actions .btn{width:100%}}@media(max-width:460px){.kb-pagehead__stats{grid-template-columns:1fr}}.kb-magnet{padding-block:clamp(var(--space-6),3vw,var(--space-8)) 0}.kb-magnet__card{display:grid;gap:var(--space-2);padding:clamp(var(--space-5),3vw,var(--space-7));border:1px solid var(--color-hairline);border-inline-start:3px solid var(--color-secondary);border-radius:var(--radius-lg);background:var(--color-white);text-decoration:none;box-shadow:var(--shadow-photo);transition:transform .24s var(--ease-out-expo),box-shadow .24s ease}.kb-magnet__card:hover{transform:translateY(-3px);box-shadow:0 24px 48px -24px #0f172a59}.kb-magnet__badge{font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-label);text-transform:uppercase;color:var(--color-secondary);font-weight:var(--font-semibold)}.kb-magnet__title{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--color-ink)}.kb-magnet__desc{color:var(--color-muted);font-size:var(--text-sm)}.kb-magnet__cta{margin-block-start:var(--space-1);color:var(--color-secondary);font-weight:var(--font-semibold);font-size:var(--text-sm)}