.ef-home{--art-hero-top:#e9f7ef}.ef-home[data-theme=dark]{--art-hero-top:#171a1e}.ef-home:not([data-theme=dark]):has(.art-page){--bg-app:#fff}html:has(.ef-home .art-page){scroll-behavior:smooth}.ef-home .art-page{flex-direction:column;flex:1;display:flex}.ef-home .art-wrap{box-sizing:border-box;width:100%;max-width:1180px;margin:0 auto;padding:0 36px}.ef-home .art-hero{background:linear-gradient(180deg,var(--art-hero-top),var(--bg-app));border-bottom:1px solid var(--border-subtle);padding:36px 0}.ef-home .art-hero .crumbs{margin-bottom:16px}.ef-home .art-hero h1{font:700 36px/1.12 var(--font-sans);letter-spacing:-.025em;color:var(--text-primary);margin:0}.ef-home .art-hero .art-lede{max-width:640px;font:400 16px/28px var(--font-sans)}.ef-home .crumbs{font:500 13px/24px var(--font-sans);color:var(--text-tertiary);flex-wrap:wrap;align-items:center;row-gap:2px;margin-bottom:20px;display:flex}.ef-home .crumbs a:hover{color:var(--accent-pressed)}.ef-home .crumbs .sep{color:var(--text-disabled);margin:0 8px}.ef-home .crumbs .curr{overflow-wrap:anywhere;min-width:0;color:var(--text-secondary)}.ef-home .art-kicker{font:800 12px/1 var(--font-sans);letter-spacing:.06em;text-transform:uppercase;color:var(--accent-pressed);flex-wrap:wrap;align-items:center;gap:10px;margin:0 0 10px;display:flex}.ef-home .art-chip{background:var(--accent-subtle);color:var(--accent-pressed);letter-spacing:.02em;border-radius:999px;padding:5px 9px}.ef-home .art-lede{font:500 17px/1.6 var(--font-sans);color:var(--text-secondary);max-width:720px;margin:12px 0 0}.ef-home .art-layout{grid-template-columns:248px minmax(0,1fr) 240px;grid-template-areas:"side head head""side main toc";align-items:start;column-gap:32px;max-width:1360px;padding-top:28px;padding-bottom:64px;display:grid}.ef-home .art-layout.no-side{grid-template-columns:minmax(0,1fr) 240px;grid-template-areas:"head head""main toc";max-width:1100px}.ef-home .art-head{border-bottom:1px solid var(--border-subtle);grid-area:head;min-width:0;margin-bottom:28px;padding-bottom:22px}.ef-home .art-head h1{font:600 28px/1.15 var(--font-sans);letter-spacing:-.025em;text-wrap:balance;color:var(--text-primary);margin:0}.ef-home .art-meta{font:400 12.5px/24px var(--font-mono);color:var(--text-tertiary);margin:12px 0 0}.ef-home .art-main{grid-area:main;min-width:0;max-width:728px}.ef-home .art-side{flex-direction:column;grid-area:side;min-width:0;max-height:calc(100vh - 108px);display:flex;position:sticky;top:84px}.ef-home .art-toc-col{grid-area:toc;min-width:0;position:sticky;top:84px}.ef-home .art-list{padding-top:26px;padding-bottom:56px}.ef-home .art-cards{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;margin:0;padding:0;list-style:none;display:grid}.ef-home .art-cards.numbered{grid-template-columns:1fr;max-width:820px}.ef-home .art-card,.ef-home .art-series{background:var(--bg-surface);border:1px solid var(--border-subtle);height:100%;box-shadow:var(--shadow-xs);border-radius:16px;flex-direction:column;transition:border-color .15s,transform .15s;display:flex;overflow:hidden}.ef-home .art-card:hover,.ef-home .art-series:hover{border-color:var(--accent);transform:translateY(-2px)}.ef-home .art-cards.numbered .art-card{flex-direction:row}.ef-home .art-card-img{aspect-ratio:16/9;object-fit:cover;background:var(--bg-surface-2);width:100%}.ef-home .art-cards.numbered .art-card-img{aspect-ratio:16/10;flex:none;width:180px}.ef-home .art-card-body,.ef-home .art-series{gap:6px;padding:16px 18px}.ef-home .art-card-body{flex-direction:column;display:flex}.ef-home .art-card-num{font:800 13px/1 var(--font-mono);color:var(--accent)}.ef-home .art-card-title,.ef-home .art-series-title{font:800 18px/1.3 var(--font-sans);color:var(--text-primary)}.ef-home .art-card-desc{font:500 14px/1.55 var(--font-sans);color:var(--text-secondary)}.ef-home .art-card-meta{font:700 12px/1 var(--font-sans);color:var(--text-tertiary);margin-top:auto;padding-top:6px}.ef-home .art-group{margin-bottom:34px}.ef-home .art-group h2{font:800 22px/1.2 var(--font-sans);color:var(--text-primary);margin:0 0 14px}.ef-home .art-series-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;display:grid}.ef-home .art-empty{color:var(--text-tertiary);font:600 15px/1.5 var(--font-sans)}.ef-home .art-prevnext{grid-template-columns:1fr 1fr;gap:14px;margin-top:36px;display:grid}.ef-home .art-pn{border:1px solid var(--border-subtle);background:var(--bg-surface);border-radius:14px;align-items:center;gap:12px;padding:14px;display:flex}.ef-home .art-pn.next{text-align:right;flex-direction:row-reverse}.ef-home .art-pn:hover{border-color:var(--accent)}.ef-home .art-pn-thumb{object-fit:cover;border-radius:8px;flex:none;width:56px;height:40px}.ef-home .art-pn-chev{width:16px;height:16px;color:var(--text-tertiary);flex:none}.ef-home .art-pn-body{flex-direction:column;gap:4px;min-width:0;display:flex}.ef-home .art-pn-label{font:800 11px/1 var(--font-sans);letter-spacing:.06em;text-transform:uppercase;color:var(--text-tertiary)}.ef-home .art-pn-title{font:700 14px/1.35 var(--font-sans);color:var(--text-primary)}.ef-home .art-author{border:1px solid var(--border-subtle);background:var(--bg-surface);border-radius:16px;gap:6px;margin-top:36px;padding:18px;display:grid}.ef-home .art-author-avatar{object-fit:cover;border-radius:50%;width:52px;height:52px}.ef-home .art-author-name{font:800 16px/1.2 var(--font-sans);color:var(--text-primary)}.ef-home .art-author-bio{font:500 14px/1.55 var(--font-sans);color:var(--text-secondary)}.ef-home .art-related-title{font:800 22px/1.2 var(--font-sans);color:var(--text-primary);margin:40px 0 14px}.ef-home .art-back{font:700 14px/1 var(--font-sans);margin-top:26px}@media (min-width:640px){.ef-home .art-hero{padding:48px 0}.ef-home .art-hero .art-lede{font-size:17px}.ef-home .art-head h1{font-size:34px}}@media (min-width:768px){.ef-home .art-hero h1{font-size:44px}}@media (min-width:1024px){.ef-home .art-head h1{font-size:38px}}@media (max-width:1239px){.ef-home .art-layout,.ef-home .art-layout.no-side{grid-template-columns:minmax(0,1fr) 240px;grid-template-areas:"head head""main toc""side.";max-width:1100px}.ef-home .art-side{max-height:none;margin-top:48px;position:static}}@media (max-width:1023px){.ef-home .art-layout,.ef-home .art-layout.no-side{grid-template-columns:minmax(0,1fr);grid-template-areas:"head""main""side"}.ef-home .art-toc-col{display:none}}@media (max-width:960px){.ef-home .art-wrap{padding:0 20px}.ef-home .art-cards.numbered .art-card-img{width:110px}.ef-home .art-prevnext{grid-template-columns:1fr}}