:root{--bg:#fafafa;--surface:#fff;--soft:#f6f6f6;--hover:#f0f0f0;--ink:#202020;--muted:#737373;--faint:#8a8a8a;--line:#e2e2e2;--strong:#c9c9c9;--dark:#262626;--danger:#8a3d3d;--radius:2px;--ui:ui-monospace,SFMono-Regular,Menlo,Consolas,"PingFang SC","Microsoft YaHei",monospace;--reading:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:12px/1.6 var(--ui);min-width:320px}button,input{font:inherit;color:inherit}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}a{color:inherit}button,a,input{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--muted);outline-offset:3px}button{border:0}h1,h2,h3,p{margin:0}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.site-header{height:62px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 30px;background:var(--surface)}.brand{display:flex;align-items:center;gap:12px;font-size:13px;font-weight:650;letter-spacing:.035em}.brand-share{color:var(--muted);font-weight:400;font-size:11px}.header-right{display:flex;align-items:center;gap:14px;font-size:10px;color:var(--faint)}.header-dot{width:3px;height:3px;background:var(--strong)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:34px;padding:6px 12px;border:1px solid var(--strong);border-radius:var(--radius);background:var(--surface);font-size:11px;text-decoration:none;white-space:nowrap}.btn:hover{background:var(--hover)}.btn.primary{color:#fff;background:var(--dark);border-color:var(--dark)}.btn.primary:hover{background:var(--ink)}.btn.quiet{border-color:transparent;background:transparent}.icon{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.reading-shell{display:flex;min-height:calc(100dvh - 62px)}.reader{flex:1;min-width:0}.document-top{min-height:57px;display:flex;align-items:center;justify-content:space-between;gap:18px;border-bottom:1px solid var(--line);padding:10px 26px;background:var(--surface)}.crumbs{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:10px;min-width:0}.crumbs span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.crumbs span:last-child{color:var(--ink)}.doc-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}.readonly{font-size:10px;color:var(--muted);padding:3px 7px;border:1px solid var(--line);background:var(--soft)}.mobile-directory{display:none}.document-paper{max-width:890px;margin:0 auto;padding:46px 42px 76px;background:var(--surface);min-height:calc(100dvh - 119px)}.single .reader{max-width:1040px;margin:32px auto 48px;border:1px solid var(--line);background:var(--surface)}.single .document-paper{min-height:0}.single{padding:0 24px}.document-meta{display:flex;flex-wrap:wrap;gap:7px 18px;color:var(--faint);font-size:10px;margin-bottom:18px}.document-paper>h1{font:650 30px/1.4 var(--reading);letter-spacing:-.025em;margin-bottom:26px;overflow-wrap:anywhere}.prose{font:15px/1.9 var(--reading);color:#3e3e3e;overflow-wrap:anywhere}.prose p{margin-bottom:18px}.prose h1{font-size:25px}.prose h2{font-size:21px;line-height:1.5}.prose h1,.prose h2,.prose h3,.prose h4,.prose h5,.prose h6{font-weight:650;color:var(--ink);margin:32px 0 14px}.prose h3{font-size:16px}.prose ul,.prose ol{padding-left:23px;margin:0 0 21px}.prose li{padding:2px 0}.prose strong{font-weight:650}.prose a{color:#3e6251;text-underline-offset:3px;overflow-wrap:anywhere}.prose code{font:12px/1.7 var(--ui);background:var(--soft);padding:2px 5px;border-radius:var(--radius)}.prose pre{margin:20px 0 25px;padding:18px 20px;border:1px solid var(--line);background:var(--soft);overflow:auto;overflow-wrap:normal}.prose pre code{padding:0;background:transparent;white-space:pre}.prose blockquote{margin:24px 0;padding:5px 0 5px 17px;border-left:2px solid var(--strong);color:var(--muted)}.prose blockquote p{margin:0}.table-scroll{overflow:auto;margin:19px 0 25px}.prose table{width:100%;border-collapse:collapse;font-size:13px;min-width:380px}.prose th,.prose td{padding:9px 12px;border:1px solid var(--line);text-align:left}.prose th{background:var(--soft);font-weight:550}.prose img{display:block;max-width:100%;height:auto;margin:25px auto;border:1px solid var(--line)}.prose figure{margin:25px 0}.prose figcaption{font:10px/1.7 var(--ui);color:var(--muted);margin-top:8px}.prose details{margin:18px 0}.prose summary{cursor:pointer}.prose hr{border:0;border-top:1px solid var(--line);margin:24px 0}.media-error{border:1px solid var(--line);padding:14px;color:var(--muted);font-size:12px}.end-note{margin-top:42px;padding-top:16px;border-top:1px solid var(--line);font:10px var(--ui);color:var(--faint)}.directory{width:258px;flex-shrink:0;background:var(--bg);border-right:1px solid var(--line);display:flex;flex-direction:column;position:sticky;top:0;align-self:flex-start;height:100dvh}.directory-head{padding:22px 18px 18px;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.directory-head .eyebrow{display:block;font-size:9px;letter-spacing:.08em;color:var(--faint);margin-bottom:8px}.directory-head h2{font-size:14px;font-weight:600}.directory-head p{color:var(--muted);font-size:10px;margin-top:6px}.directory-search{padding:14px 12px 8px}.directory-search input{width:100%;height:32px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:6px 9px;font-size:10px}.tree{padding:8px;overflow:auto;flex:1}.tree-group{margin-top:4px}.folder-button,.tree-doc{width:100%;display:flex;align-items:center;gap:8px;min-height:34px;padding:6px 9px;border:1px solid transparent;border-radius:var(--radius);background:transparent;text-align:left;font-size:11px}.folder-button{font-weight:550}.tree-doc{color:var(--muted)}.tree-doc:hover,.folder-button:hover{background:var(--hover)}.tree-doc.active{border-color:var(--line);background:var(--surface);color:var(--ink);box-shadow:inset 2px 0 var(--dark)}.tree-doc span,.folder-button span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-children{padding-left:12px}.tree-empty{padding:20px 8px;color:var(--muted);font-size:11px}.directory-footer{padding:13px 18px;border-top:1px solid var(--line);color:var(--faint);font-size:9px}.directory-close,.drawer-scrim{display:none}.state-shell{min-height:calc(100dvh - 62px);display:grid;place-items:center;padding:60px 24px}.state-card{width:min(380px,100%);text-align:left}.state-icon{width:42px;height:42px;border:1px solid var(--line);display:grid;place-items:center;background:var(--surface);margin-bottom:24px}.state-icon .icon{width:21px;height:21px}.state-eyebrow{font-size:10px;color:var(--faint);margin-bottom:12px}.state-card h1{font-size:23px;font-weight:600;letter-spacing:-.02em;margin-bottom:12px}.state-copy{font:14px/1.9 var(--reading);color:var(--muted);margin-bottom:25px}.password-field{margin-top:22px}.password-field label{display:block;font-size:11px;margin-bottom:8px}.password-field input{width:100%;height:44px;padding:10px 12px;border:1px solid var(--strong);border-radius:var(--radius);background:var(--surface)}.password-field button{width:100%;margin-top:14px;height:40px}.field-error{font-size:11px;color:var(--danger);margin-top:10px}.state-footnote{font-size:10px;color:var(--faint);border-top:1px solid var(--line);padding-top:17px;margin-top:26px}.spinner{width:21px;height:21px;border:2px solid var(--line);border-top-color:var(--muted);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (min-width:1500px){.directory{width:282px}.document-paper{max-width:960px;padding-left:52px;padding-right:52px}}@media (max-width:900px){.header-right>span:last-child,.header-dot{display:none}.directory{width:226px}.document-paper{padding:32px 26px 60px}.single .reader{margin-top:24px}.single{padding:0 18px}.document-top{padding:10px 18px}.readonly{display:none}}@media (max-width:680px){.site-header{height:55px;padding:0 16px}.brand{font-size:11px;gap:9px}.brand-share,.header-right{font-size:9px}.document-top{min-height:52px;gap:9px;padding:9px 14px}.doc-actions{gap:5px}.doc-actions .btn{padding:5px 8px;min-height:31px;font-size:10px}.crumbs{font-size:9px;gap:5px}.crumbs .crumb-parent{display:none}.single{padding:0 12px}.single .reader{margin:18px auto 28px}.document-paper{padding:27px 19px 46px}.document-paper>h1{font-size:25px}.document-meta{font-size:9px;gap:6px 12px}.prose pre{padding:14px}.prose pre code{font-size:11px}.reading-shell{min-height:calc(100dvh - 55px)}.directory{position:fixed;inset:0 auto 0 0;width:min(300px,85vw);height:100dvh;z-index:60;transform:translate(-100%);visibility:hidden;transition:transform .15s}.directory.open{transform:translate(0);visibility:visible}.directory-close{display:block;position:absolute;right:12px;top:16px;background:none;padding:5px}.drawer-scrim.open{display:block;position:fixed;top:0;right:0;bottom:0;left:0;z-index:55;background:#0004}.mobile-directory{display:inline-flex}.directory-head{padding-right:40px}.state-shell{min-height:calc(100dvh - 55px);padding:45px 24px}.state-card h1{font-size:22px}body.drawer-open{overflow:hidden}}.prose pre.quick-note-text{white-space:pre-wrap;overflow-wrap:anywhere;font:15px/1.9 var(--reading);background:transparent;border:0;padding:0;margin:0}@media (max-width:680px){.directory{transform:none;transition:none}}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}