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var(--kb-ease)}.kb-quick-action:hover{border-color:var(--kb-accent);background:var(--kb-bg-hover);box-shadow:var(--kb-shadow-glow)}.kb-quick-action-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--kb-accent-subtle);border-radius:var(--kb-radius);color:var(--kb-accent)}.kb-quick-action-title{font-size:13px;font-weight:600;color:var(--kb-text)}.kb-quick-action-desc{font-size:12px;color:var(--kb-text-muted);margin-top:1px}.kb-footer{border-top:1px solid var(--kb-border-subtle);padding:24px 0;text-align:center}.kb-footer-text{font-size:11px;color:var(--kb-text-muted);letter-spacing:.02em}.kb-variant-switcher{position:fixed;bottom:24px;right:24px;z-index:1000;display:flex;gap:2px;padding:3px;background:var(--kb-bg-card);border:1px solid var(--kb-border);border-radius:var(--kb-radius-lg);box-shadow:var(--kb-shadow-lg)}.kb-variant-btn{padding:6px 14px;font-size:11px;font-family:var(--kb-font);font-weight:500;color:var(--kb-text-muted);background:transparent;border:none;border-radius:var(--kb-radius);cursor:pointer;transition:all .15s var(--kb-ease);letter-spacing:.02em}.kb-variant-btn:hover{color:var(--kb-text);background:var(--kb-bg-hover)}.kb-variant-btn--active{color:#ffffff;background:var(--kb-accent)}.kb-dark{--v4-bg:#181818;--v4-bg-secondary:#1c1c1c;--v4-bg-tertiary:#222222;--v4-surface:#1f1f1f;--v4-surface-hover:#262626;--v4-border:#333333;--v4-border-light:#252525;--v4-text:#C0CCDA;--v4-text-secondary:#8e99a4;--v4-text-muted:#525c67;--v4-primary:#CC3333;--v4-primary-hover:#d94040;--v4-primary-light:rgba(204,51,51,0.10);--v4-shadow-sm:0 1px 2px rgba(0,0,0,0.4);--v4-shadow-md:0 4px 20px rgba(0,0,0,0.5);--v4-shadow-lg:0 8px 40px rgba(0,0,0,0.6);--v4-shadow-focus:0 0 0 4px rgba(204,51,51,0.25)}.kb-dark .apple-header{background:rgba(24,24,24,.88);backdrop-filter:saturate(180%) 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.apple-article-item:hover{color:#CC3333}.kb-dark .apple-quick-action{background:#1f1f1f;border:1px solid #252525}.kb-dark .apple-quick-action:hover{background:#262626;border-color:#CC3333}.kb-dark .apple-category-icon,.kb-dark .apple-quick-action-icon{background:rgba(204,51,51,.1);color:#CC3333}.kb-dark .apple-footer{border-top-color:#252525}.kb-dark .breadcrumb-link{color:#8e99a4}.kb-dark .breadcrumb-link:hover{color:#C0CCDA}.kb-dark .notion-callout{background:#1f1f1f;border-color:#333333;color:#C0CCDA}.kb-dark .notion-image-wrapper img{border-radius:6px}.kb-dark table{border-color:#333333}.kb-dark th{background:#1f1f1f}.kb-dark td,.kb-dark th{color:#C0CCDA;border-color:#333333}@media (max-width:768px){.kb-hero{height:260px}.kb-hero-title{font-size:20px}.kb-hero-logo-img{width:60px;height:60px}.kb-accordion-content-inner,.kb-directory,.kb-hub-grid,.kb-popular-grid{grid-template-columns:1fr}.kb-nav{display:none}.kb-main{padding:24px 16px 60px}}@media (max-width:1024px){.kb-hub-grid,.kb-popular-grid{grid-template-columns:repeat(2,1fr)}}.kb-dark>*{animation:kb-pageEnter .3s ease-out}@keyframes kb-pageEnter{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}