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auto;position:relative;z-index:1}.article-tags{display:flex;gap:8px;margin-bottom:20px;flex-wrap:wrap}.article-tag{padding:4px 14px;border-radius:6px;font-size:12px;font-weight:700}.tag-cat{background:#2563eb1a;color:var(--primary, #2563EB)}.tag-diff{background:#f59e0b1a;color:var(--diff-color, var(--accent-dark, #D97706))}.tag-time{background:#10b9811a;color:var(--secondary-dark, #059669)}.article-hero h1{font-size:36px;font-weight:900;line-height:1.3;margin-bottom:20px;color:var(--text, #0F172A);letter-spacing:-.5px}.article-meta{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.author-chip{display:flex;align-items:center;gap:10px}.author-avatar{width:44px;height:44px;border-radius:50%;border:2px solid #fff;background:linear-gradient(135deg,var(--primary-light, #BFDBFE),#E0E7FF);display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 2px 8px #00000014}.author-name{font-weight:700;font-size:15px;color:var(--text, #0F172A)}.author-role{font-size:12px;color:var(--text-muted, #94A3B8)}.meta-sep{width:1px;height:24px;background:var(--border, #CBD5E1)}.meta-item{font-size:13px;color:var(--text-secondary, #475569)}.article-layout{max-width:1280px;margin:0 auto;padding:40px 32px;display:flex;gap:48px;align-items:flex-start}.article-main{flex:1;min-width:0;max-width:730px}.article-sidebar{width:320px;flex-shrink:0;position:sticky;top:108px}.tldr-card{background:var(--bg, #F8FAFC);border:1px solid var(--border, #CBD5E1);border-radius:12px;padding:24px 28px;margin-bottom:40px;position:relative;overflow:hidden;box-shadow:0 1px 3px #0000000a}.tldr-card:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--primary, #2563EB),var(--secondary, #10B981));border-radius:4px 0 0 4px}.tldr-label{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--primary, #2563EB);text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}.tldr-card p{font-size:15px;line-height:1.8;color:var(--text, #0F172A)}.article-body{background:var(--bg, #F8FAFC);border:1px solid var(--border, #CBD5E1);border-radius:12px;padding:48px 52px;box-shadow:0 1px 3px #0000000a}.article-body h2{font-size:24px;font-weight:800;margin:48px 0 20px;color:var(--text, #0F172A);padding-bottom:14px;border-bottom:2px solid var(--border-light, #E2E8F0);letter-spacing:-.3px}.article-body h3{font-size:19px;font-weight:700;margin:36px 0 14px;color:var(--text, #0F172A)}.article-body p{font-size:16px;line-height:1.9;margin-bottom:18px;color:var(--text-secondary, #475569)}.article-body ol,.article-body ul{margin:12px 0 24px 28px}.article-body li{font-size:15px;line-height:1.9;margin-bottom:10px;color:var(--text-secondary, #475569)}.article-body li::marker{color:var(--primary, #2563EB);font-weight:700}.article-body strong{color:var(--text, #0F172A);font-weight:600}.article-body blockquote{background:var(--bg-gray, #F1F5F9);border:1px solid var(--border, #CBD5E1);border-left:4px solid var(--secondary, #10B981);border-radius:0 8px 8px 0;padding:18px 24px;margin:24px 0;font-size:14px;color:var(--text-secondary, #475569);line-height:1.7}.article-body blockquote strong{color:var(--secondary-dark, #059669)}.article-body code{background:var(--bg-gray, #F1F5F9);padding:2px 6px;border-radius:4px;font-size:14px;color:var(--primary, #2563EB)}.inline-cta{background:linear-gradient(135deg,#2563eb0a,#dbeafe);border:1px solid rgba(37,99,235,.15);border-radius:12px;padding:28px 32px;margin:40px 0;display:flex;align-items:center;gap:24px}.inline-cta-icon{font-size:48px;flex-shrink:0;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.inline-cta-content{flex:1}.inline-cta-content h4{font-size:17px;font-weight:700;color:var(--text, #0F172A);margin-bottom:4px}.inline-cta-content p{font-size:14px;color:var(--text-secondary, #475569);margin-bottom:0}.inline-cta-btn{background:linear-gradient(135deg,var(--accent, #F59E0B),var(--accent-dark, #D97706));color:#fff;border:none;padding:14px 28px;border-radius:12px;font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;flex-shrink:0;box-shadow:0 4px 12px #f59e0b4d;transition:all .2s;text-decoration:none;display:inline-block}.inline-cta-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #f59e0b66;color:#fff}.faq-section{margin:48px 0}.faq-title{font-size:22px;font-weight:800;margin-bottom:24px;color:var(--text, #0F172A)}.faq-list{display:flex;flex-direction:column;gap:12px}.faq-item{background:var(--bg, #F8FAFC);border:1px solid var(--border, #CBD5E1);border-radius:10px;overflow:hidden}.faq-q{padding:18px 24px;font-size:15px;font-weight:600;color:var(--text, #0F172A);cursor:pointer;display:flex;align-items:center;gap:10px;transition:background 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#475569);line-height:1.6}.author-card-stats{display:flex;gap:24px;margin-top:10px}.author-stat{font-size:12px;color:var(--text-muted, #94A3B8)}.author-stat strong{color:var(--text, #0F172A);font-weight:700}.related-section{margin:48px 0}.related-title{font-size:22px;font-weight:800;margin-bottom:24px;color:var(--text, #0F172A)}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.related-card{background:var(--bg, #F8FAFC);border:1px solid var(--border, #CBD5E1);border-radius:12px;overflow:hidden;transition:all .3s;cursor:pointer;display:block;color:var(--text, #0F172A);text-decoration:none}.related-card:hover{border-color:var(--primary-light, #93C5FD);box-shadow:0 8px 24px #00000014;transform:translateY(-3px);color:var(--text, #0F172A)}.related-thumb{height:120px;display:flex;align-items:center;justify-content:center;font-size:36px}.related-thumb-0{background:linear-gradient(135deg,#dbeafe,#93c5fd)}.related-thumb-1{background:linear-gradient(135deg,#d1fae5,#6ee7b7)}.related-thumb-2{background:linear-gradient(135deg,#fef3c7,#fcd34d)}.related-body{padding:18px 20px}.related-body h3{font-size:14px;font-weight:700;line-height:1.5;margin-bottom:8px;color:var(--text, #0F172A)}.related-body p{font-size:12px;color:var(--text-muted, #94A3B8);margin:0}.bottom-cta{max-width:730px;margin:0 auto 48px}.bottom-cta-inner{background:linear-gradient(135deg,var(--primary, #2563EB),#1E40AF);border-radius:16px;padding:48px;text-align:center;position:relative;overflow:hidden}.bottom-cta-inner:before{content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;border-radius:50%;background:#ffffff0f}.bottom-cta-inner h2{font-size:24px;font-weight:800;color:#fff;margin-bottom:12px;position:relative;z-index:1}.bottom-cta-inner p{font-size:15px;color:#ffffffbf;margin-bottom:24px;position:relative;z-index:1}.btn-white{background:#fff;color:var(--primary, #2563EB);border:none;padding:14px 32px;border-radius:12px;font-size:15px;font-weight:700;cursor:pointer;box-shadow:0 4px 12px #00000026;transition:all .2s;position:relative;z-index:1}.btn-white:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0003}.sidebar-card{background:var(--bg, #F8FAFC);border:1px solid var(--border, #CBD5E1);border-radius:12px;padding:24px;margin-bottom:20px;box-shadow:0 1px 3px #0000000a}.sidebar-card h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text, #0F172A);display:flex;align-items:center;gap:8px}.toc-item{display:flex;align-items:center;gap:10px;padding:9px 14px;font-size:13.5px;color:var(--text-secondary, #475569);border-left:2px solid var(--border, #CBD5E1);margin-bottom:2px;border-radius:0 6px 6px 0;transition:all .2s;cursor:pointer;text-decoration:none}.toc-item:hover{color:var(--primary, #2563EB);background:var(--primary-50, #EFF6FF);border-left-color:var(--primary, #2563EB)}.toc-item.active{color:var(--primary, #2563EB);background:var(--primary-50, #EFF6FF);border-left-color:var(--primary, #2563EB);font-weight:600}.toc-num{font-size:11px;font-weight:700;color:var(--text-muted, #94A3B8);min-width:18px}.sidebar-cta{background:linear-gradient(160deg,var(--bg-dark, #0F172A),#1E293B);border-radius:12px;padding:32px 24px;text-align:center;border:1px solid rgba(255,255,255,.06);position:relative;overflow:hidden;margin-bottom:20px}.sidebar-cta:before{content:"";position:absolute;top:-40px;right:-40px;width:120px;height:120px;border-radius:50%;background:#2563eb1a}.sidebar-cta-icon{font-size:40px;margin-bottom:16px}.sidebar-cta h4{color:#f1f5f9;font-size:17px;font-weight:700;margin-bottom:8px}.sidebar-cta p{color:#94a3b8;font-size:13px;margin-bottom:20px;line-height:1.6}.sidebar-cta-btn{display:block;background:linear-gradient(135deg,var(--accent, #F59E0B),var(--accent-dark, #D97706));color:#fff;border:none;padding:14px 24px;border-radius:12px;font-size:14px;font-weight:700;cursor:pointer;width:100%;box-shadow:0 4px 12px #f59e0b40;text-decoration:none;text-align:center}.sidebar-cta-btn:hover{color:#fff;transform:translateY(-1px);box-shadow:0 6px 20px #f59e0b59}.sidebar-related-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--border-light, #E2E8F0);cursor:pointer;text-decoration:none}.sidebar-related-item:last-child{border-bottom:none}.sidebar-related-item:hover .sr-title{color:var(--primary, #2563EB)}.sidebar-related-icon{width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}.sri-1{background:#fee2e2}.sri-2{background:#ede9fe}.sri-3{background:#fef3c7}.sri-4{background:#d1fae5}.sr-title{font-size:13px;font-weight:600;color:var(--text, #0F172A);line-height:1.5;margin-bottom:2px;transition:color .2s}.sr-meta{font-size:11px;color:var(--text-muted, #94A3B8)}@media(max-width:1024px){.article-layout{flex-direction:column}.article-sidebar{width:100%;position:static}.related-grid{grid-template-columns:1fr}}@media(max-width:640px){.article-hero h1{font-size:26px}.article-body{padding:28px 20px}.inline-cta{flex-direction:column;text-align:center}.bottom-cta-inner{padding:32px 24px}}