.academia-page{background:var(--bg);min-height:100vh;color:var(--ink);padding-top:80px}.academia-container{max-width:1320px;margin:0 auto;padding:0 40px}.academia-container--split{grid-template-columns:260px 1fr;gap:64px;display:grid}.academia-sidebar{align-self:start;max-height:calc(100vh - 120px);position:sticky;top:96px}.academia-sidebar-inner{max-height:inherit;scrollbar-width:thin;padding:40px 16px 40px 0;overflow-y:auto}.academia-sidebar-inner::-webkit-scrollbar{width:4px}.academia-sidebar-inner::-webkit-scrollbar-thumb{background:var(--border-mid);border-radius:4px}.academia-sidebar-header{font-family:var(--font-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--ink-light);border-bottom:1px solid var(--border);margin-bottom:20px;padding-bottom:16px;font-size:.7rem;font-weight:600;display:block}.academia-sidebar-link{cursor:pointer;text-align:left;width:100%;font-family:var(--font-sans);color:var(--ink-mid);border-radius:var(--r);transition:background .15s var(--ease), color .15s var(--ease);background:0 0;border:none;grid-template-columns:36px 1fr auto;align-items:center;gap:10px;margin-bottom:2px;padding:9px 12px;font-size:.85rem;line-height:1.35;display:grid}.academia-sidebar-link:hover{background:var(--bg-alt);color:var(--ink)}.academia-sidebar-link--active{background:var(--ink);color:#fff}.academia-sidebar-link--active .academia-sidebar-num,.academia-sidebar-link--active .academia-sidebar-count{color:#ffffffa6}.academia-sidebar-num{font-family:var(--font-mono);letter-spacing:.04em;color:var(--ink-light);font-size:.7rem;font-weight:500}.academia-sidebar-count{font-family:var(--font-mono);color:var(--ink-light);letter-spacing:.02em;font-size:.68rem}.academia-hero{border-bottom:1px solid var(--border);grid-template-columns:1fr auto;align-items:end;gap:48px;padding:40px 0 32px;display:grid}.academia-hero--compact{padding:24px 0 28px}.academia-hero-badge{background:var(--accent-light);color:var(--accent-text);border-radius:20px;align-items:center;gap:8px;margin-bottom:24px;padding:6px 14px;font-size:13px;font-weight:600;display:inline-flex}.academia-hero-dot{background:var(--accent);border-radius:50%;flex-shrink:0;width:8px;height:8px}.academia-h1{font-family:var(--font-serif);letter-spacing:-.025em;color:var(--ink);margin:0 0 18px;font-size:clamp(36px,5vw,56px);font-weight:700;line-height:1.05}.academia-h1-accent{color:var(--accent)}.academia-sub{font-family:var(--font-sans);color:var(--ink-mid);max-width:560px;margin:0;font-size:clamp(14px,1.6vw,16px);line-height:1.7}.academia-stats{grid-auto-flow:column;align-items:end;gap:28px;padding-bottom:4px;display:grid}.academia-stat-num{font-family:var(--font-serif);color:var(--ink);letter-spacing:-.02em;margin-bottom:8px;font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1;display:block}.academia-stat-label{font-family:var(--font-sans);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-light);font-size:.68rem;font-weight:600}.academia-search-wrap{padding:24px 0 12px}.academia-search{max-width:480px;position:relative}.academia-search input{border:1px solid var(--border-mid);background:var(--bg);width:100%;font-family:var(--font-sans);color:var(--ink);transition:border-color .2s var(--ease), box-shadow .2s var(--ease);box-sizing:border-box;border-radius:100px;outline:none;padding:11px 14px 11px 40px;font-size:.9rem}.academia-search input:focus{border-color:var(--ink);box-shadow:0 0 0 4px #1118270d}.academia-search input::placeholder{color:var(--ink-light)}.academia-search:before{content:"";border:1.5px solid var(--ink-light);pointer-events:none;border-radius:50%;width:14px;height:14px;position:absolute;top:50%;left:16px;transform:translateY(-50%)}.academia-search:after{content:"";background:var(--ink-light);pointer-events:none;width:6px;height:1.5px;position:absolute;top:25px;left:26px;transform:rotate(45deg)}.academia-content{min-width:0;padding:24px 0 140px}.academia-chapter{margin:56px 0 0;scroll-margin-top:96px}.academia-chapter-head{border-bottom:1px solid var(--border);align-items:center;gap:16px;margin-bottom:12px;padding-bottom:16px;display:flex}.academia-chapter-num{font-family:var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-mid);background:var(--bg-alt);border-radius:var(--r);flex-shrink:0;padding:5px 10px;font-size:.72rem;font-weight:600}.academia-chapter-title{font-family:var(--font-serif);color:var(--ink);letter-spacing:-.015em;flex:1;margin:0;font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.2}.academia-chapter-count{font-family:var(--font-mono);letter-spacing:.06em;color:var(--ink-light);flex-shrink:0;font-size:.72rem}.academia-rows{margin:0;padding:0;list-style:none}.academia-rows li{list-style:none}.academia-row{border-bottom:1px solid var(--border);color:var(--ink);transition:background .18s var(--ease), padding .2s var(--ease);grid-template-columns:64px 1fr auto 24px;align-items:center;gap:20px;padding:14px 8px 14px 4px;text-decoration:none;display:grid;position:relative}.academia-row:hover{background:var(--bg-alt);padding-left:12px}.academia-row-num{font-family:var(--font-mono);letter-spacing:.04em;color:var(--ink-light);font-size:.78rem;font-weight:500}.academia-row-title{font-family:var(--font-sans);color:var(--ink);font-size:.98rem;font-weight:500;line-height:1.4}.academia-row:hover .academia-row-title{color:var(--ink)}.academia-row-meta{font-family:var(--font-sans);color:var(--ink-light);align-items:center;gap:8px;font-size:.74rem;display:inline-flex}.academia-row-level{color:var(--ink);text-transform:capitalize;font-weight:600}.academia-row-dot{background:var(--border-mid);border-radius:50%;width:3px;height:3px;display:inline-block}.academia-row-arrow{font-family:var(--font-sans);color:var(--ink-light);opacity:0;transition:opacity .2s var(--ease), transform .2s var(--ease), color .2s var(--ease);text-align:right;font-size:.95rem;transform:translate(-6px)}.academia-row:hover .academia-row-arrow{opacity:1;color:var(--ink);transform:translate(0)}.academia-empty{text-align:center;font-family:var(--font-serif);color:var(--ink-light);padding:100px 0;font-size:1.3rem;font-weight:700}.academia-article-page{max-width:760px;color:var(--ink);margin:0 auto;padding:96px 40px 140px}.academia-back{font-family:var(--font-sans);color:var(--ink-light);transition:color .2s var(--ease);align-items:center;gap:10px;margin-bottom:40px;font-size:.82rem;font-weight:500;text-decoration:none;display:inline-flex}.academia-back:hover{color:var(--ink)}.academia-back:before{content:"←";font-size:1rem}.academia-article-kicker{font-family:var(--font-sans);color:var(--ink-light);flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:20px;font-size:.74rem;font-weight:500;display:flex}.academia-article-kicker-num{font-family:var(--font-mono);color:var(--ink-mid);background:var(--bg-alt);letter-spacing:.04em;border-radius:4px;padding:4px 8px;font-weight:600}.academia-article-kicker-sep{background:var(--border-mid);border-radius:50%;width:4px;height:4px;display:inline-block}.academia-article-title{font-family:var(--font-serif);letter-spacing:-.025em;color:var(--ink);margin:0 0 32px;font-size:clamp(2rem,4.4vw,3.2rem);font-weight:700;line-height:1.08}.academia-article-meta{border-top:1px solid var(--border);border-bottom:1px solid var(--border);font-family:var(--font-sans);color:var(--ink-light);flex-wrap:wrap;gap:18px;margin-bottom:48px;padding:14px 0;font-size:.78rem;display:flex}.academia-article-meta-badge{color:var(--ink);text-transform:capitalize;font-weight:600}.academia-article-content{font-family:var(--font-sans);color:var(--ink-mid);font-size:1.05rem;line-height:1.75}.academia-article-content>p{margin:0 0 24px}.academia-article-content a{color:var(--ink);background-image:linear-gradient(var(--accent), var(--accent));transition:background-size .3s var(--ease);background-position:0 100%;background-repeat:no-repeat;background-size:100% 1px;padding-bottom:1px;text-decoration:none}.academia-article-content a:hover{background-position:0 88%;background-size:100% 6px}.academia-article-content strong{color:inherit;font-weight:500}.academia-article-content em{color:inherit;font-style:normal}.academia-article-content h2{font-family:var(--font-serif);color:var(--ink);border-top:1px solid var(--border);letter-spacing:-.015em;margin:56px 0 18px;padding-top:24px;font-size:1.6rem;font-weight:700;line-height:1.25}.academia-article-content h3{font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.12em;color:var(--ink);margin:36px 0 12px;font-size:.78rem;font-weight:600}.academia-article-content ul,.academia-article-content ol{margin:0 0 26px;padding-left:0;list-style:none}.academia-article-content li{margin-bottom:10px;padding-left:26px;position:relative}.academia-article-content ul>li:before{content:"";background:var(--border-mid);width:12px;height:1.5px;position:absolute;top:12px;left:4px}.academia-article-content ol{counter-reset:academia-ol}.academia-article-content ol>li{counter-increment:academia-ol}.academia-article-content ol>li:before{content:counter(academia-ol, decimal-leading-zero);font-family:var(--font-mono);color:var(--ink-light);letter-spacing:.04em;font-size:.72rem;font-weight:600;line-height:1.85;position:absolute;top:0;left:0}.academia-article-content blockquote{border-left:3px solid var(--ink);background:var(--bg-alt);border-radius:0 var(--r) var(--r) 0;font-family:var(--font-sans);color:var(--ink-mid);margin:36px 0;padding:18px 24px;font-size:1rem;line-height:1.65}.academia-article-content table{border-collapse:collapse;width:100%;margin:32px 0;font-size:.94rem}.academia-article-content th,.academia-article-content td{border-bottom:1px solid var(--border);text-align:left;vertical-align:top;padding:12px 14px}.academia-article-content th{background:var(--bg-alt);font-family:var(--font-sans);text-transform:uppercase;letter-spacing:.08em;color:var(--ink-mid);border-bottom:1px solid var(--border-mid);font-size:.76rem;font-weight:600}.academia-article-content pre{background:var(--ink);color:#fff;font-family:var(--font-mono);border-radius:var(--r-lg);margin:28px 0;padding:22px 24px;font-size:.86rem;line-height:1.6;overflow-x:auto}.academia-article-content code{font-family:var(--font-mono);background:var(--bg-alt);color:var(--ink);border-radius:4px;padding:2px 6px;font-size:.86em}.academia-article-content pre code{color:inherit;background:0 0;padding:0}.academia-figure{margin:36px 0}.academia-figure img,.academia-inline-img{border-radius:var(--r-lg);border:1px solid var(--border);width:100%;height:auto;display:block}.academia-figure figcaption{font-family:var(--font-sans);color:var(--ink-light);border-left:2px solid var(--border-mid);margin-top:12px;padding-left:12px;font-size:.82rem}.mermaid-chart{border:1px solid var(--border);border-radius:var(--r-lg);background:#fff;max-width:100%;margin:48px auto;padding:32px;display:block;overflow-x:auto}.mermaid-chart svg{margin:0 auto;display:block;width:auto!important;max-width:none!important;height:auto!important}.mermaid-chart svg *{font-family:var(--font-sans)!important}.academia-article-footer{border-top:1px solid var(--border);grid-template-columns:1fr 1fr;gap:24px;margin-top:80px;padding-top:28px;display:grid}.academia-article-footer a{color:var(--ink);border:1px solid var(--border-mid);border-radius:var(--r-lg);transition:border-color .2s var(--ease), background .2s var(--ease);padding:18px 20px;text-decoration:none;display:block}.academia-article-footer a:hover{border-color:var(--ink);background:var(--bg-alt)}.academia-article-footer-label{font-family:var(--font-sans);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-light);margin-bottom:6px;font-size:.72rem;font-weight:600;display:block}.academia-article-footer-title{font-family:var(--font-serif);letter-spacing:-.01em;color:var(--ink);font-size:1rem;font-weight:700;line-height:1.3}.academia-article-footer .next{text-align:right}.academia-mobile-nav{display:none}@media (width<=1024px){.academia-container--split{grid-template-columns:1fr;gap:24px}.academia-sidebar{display:none}.academia-mobile-nav{scrollbar-width:none;border-bottom:1px solid var(--border);gap:8px;margin:8px 0 16px;padding:8px 0 16px;display:flex;overflow-x:auto}.academia-mobile-nav::-webkit-scrollbar{display:none}.ac-mob-pill{white-space:nowrap;border:1px solid var(--border-mid);font-family:var(--font-sans);color:var(--ink-mid);cursor:pointer;transition:all .18s var(--ease);background:0 0;border-radius:100px;padding:7px 14px;font-size:.78rem;font-weight:500}.ac-mob-pill.active{background:var(--ink);color:#fff;border-color:var(--ink)}}@media (width<=720px){.academia-container{padding:0 20px}.academia-hero{grid-template-columns:1fr;align-items:start;gap:24px}.academia-stats{grid-template-columns:repeat(3,1fr);grid-auto-flow:row;gap:16px}.academia-row{grid-template-columns:56px 1fr 24px;gap:14px}.academia-row-meta{display:none}.academia-article-page{padding:64px 20px 100px}.academia-article-footer{grid-template-columns:1fr;gap:12px}.academia-article-footer .next{text-align:left}}