.content-timeline{--timeline-width:14rem;border-block:1px solid var(--line);color:var(--text);text-align:left;margin:2.5rem 0;padding:1.5rem 0 1rem}.timeline-header{justify-content:space-between;align-items:center;gap:1.25rem;margin-bottom:2rem;display:flex}.timeline-heading{gap:.45rem;min-width:0;display:grid}.timeline-eyebrow{color:var(--accent);font:10px/1.5 var(--mono);letter-spacing:.08em}figure.content-timeline strong.timeline-title{color:var(--text);font:500 20px/1.5 var(--sans);letter-spacing:-.025em}.timeline-controls{flex-shrink:0;gap:.5rem;display:flex}.timeline-controls button{border:1px solid var(--line-strong);width:40px;height:40px;color:var(--text);font:20px/1 var(--sans);cursor:pointer;background:0 0;border-radius:50%;place-items:center;padding:0;transition:background .18s,border-color .18s;display:grid}.timeline-controls button:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}.timeline-controls button:disabled{color:var(--text-muted);border-color:var(--line);opacity:.45;cursor:default}.timeline-controls button:focus-visible,.timeline-viewport:focus-visible{outline:2px solid var(--accent);outline-offset:4px}.timeline-viewport{overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;scroll-snap-type:x proximity;padding-bottom:1rem;scroll-padding-inline:1px;overflow-x:auto}figure.content-timeline ol.timeline-track{width:max-content;min-width:100%;margin:0;padding:0;list-style:none;display:flex}figure.content-timeline li.timeline-event{flex:1 0 var(--timeline-width);width:var(--timeline-width);scroll-snap-align:start;min-width:0;margin:0;padding:0 1.5rem 0 1px;position:relative}.timeline-date{color:var(--text);font:400 28px/1.25 var(--display);font-variant-numeric:lining-nums tabular-nums;letter-spacing:-.04em;white-space:nowrap;display:block}.timeline-marker{height:34px;margin:.8rem -1.5rem .9rem -1px;display:block;position:relative}.timeline-marker:before{content:"";background:var(--line-strong);height:1px;position:absolute;top:16px;left:0;right:0}.timeline-marker>span{border:2px solid var(--accent);background:var(--bg);border-radius:50%;width:9px;height:9px;position:absolute;top:12px;left:1px}.timeline-event:first-child .timeline-marker>span{background:var(--accent)}.timeline-event:last-child .timeline-marker:before{background:linear-gradient(to right, var(--line-strong), transparent)}.timeline-index{color:var(--text-soft);font:10px/1.4 var(--mono);letter-spacing:.08em;margin-bottom:.65rem;display:block}figure.content-timeline .timeline-event-title{color:var(--text);font:600 16px/1.65 var(--sans);text-wrap:pretty;margin:0;text-decoration:none;display:block}figure.content-timeline a.timeline-event-title:hover{color:var(--accent)}figure.content-timeline p.timeline-event-description{color:var(--text-soft);font:13px/1.85 var(--sans);overflow-wrap:anywhere;text-wrap:pretty;margin:.65rem 0 0}.timeline-footer{justify-content:space-between;align-items:baseline;gap:1rem;margin-top:.8rem;display:flex}figure.content-timeline .timeline-footer p{color:var(--text-soft);font:11px/1.7 var(--sans);margin:0}.timeline-scroll-hint{color:var(--text-soft);font:11px/1.7 var(--sans);flex-shrink:0}.timeline-scroll-hint span{color:var(--accent);margin-left:.5rem}@media (width<=640px){.content-timeline{--timeline-width:13rem;padding-top:1.25rem}.timeline-header{margin-bottom:1.6rem}figure.content-timeline strong.timeline-title{font-size:18px}.timeline-date{font-size:27px}.timeline-footer{flex-direction:column;gap:.45rem}}@media (prefers-reduced-motion:reduce){.timeline-controls button{transition:none}}@media print{.timeline-controls,.timeline-scroll-hint{display:none!important}.timeline-viewport{overflow:visible}figure.content-timeline ol.timeline-track{flex-wrap:wrap;gap:1.5rem 0;width:100%}figure.content-timeline li.timeline-event{break-inside:avoid;flex:0 0 33.333%}}.reader-toolbar{border-bottom:1px solid var(--line);background:color-mix(in srgb, var(--surface) 72%, transparent);min-height:42px;color:var(--text-soft);justify-content:space-between;align-items:center;gap:14px;padding:0 12px 0 15px;display:flex}.reader-label{color:var(--text-muted);font:9px var(--mono);letter-spacing:.1em;flex:none}.reader-actions{scrollbar-width:none;align-items:center;gap:3px;display:flex;overflow-x:auto}.reader-actions::-webkit-scrollbar{display:none}.reader-tool{min-width:30px;color:var(--text-soft);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:6px;padding:6px 8px;font-size:11px;transition:color .2s,background-color .2s,transform .15s}.reader-tool:hover{background:var(--surface-strong);color:var(--text)}.reader-tool:active{transform:scale(.96)}.scale-label{min-width:42px;color:var(--text-soft);font:9px var(--mono);text-align:center}.code-frame,.visual-frame{border:1px solid var(--line);background:var(--surface-soft);box-shadow:0 1px 0 color-mix(in srgb, var(--text) 4%, transparent), 0 12px 28px color-mix(in srgb, var(--text) 3%, transparent);border-radius:12px;margin:36px 0;overflow:hidden}.code-frame pre{border:0!important;border-radius:0!important;margin:0!important}.code-frame.is-wrapped pre,.code-frame.is-wrapped code{overflow-wrap:anywhere;white-space:pre-wrap!important}.diagram-viewport{text-align:center;overscroll-behavior:contain;min-height:140px;max-height:468px;padding:20px 24px;overflow:auto}.mermaid{width:100%;min-width:0}.mermaid svg{height:auto;margin:0 auto;transition:width .22s;display:block}.echarts-canvas{width:100%;height:clamp(300px,36vw,380px);padding:10px}.visual-error{min-height:180px;color:var(--accent);font:12px/1.7 var(--mono);text-align:left;white-space:pre-wrap;padding:28px;overflow:auto}.visual-frame:fullscreen{background:var(--bg);border:0;border-radius:0;flex-direction:column;width:100vw;height:100vh;margin:0;display:flex}.visual-frame:fullscreen .reader-toolbar{flex-shrink:0}.visual-frame:fullscreen .diagram-viewport{flex:1;align-items:safe center;min-height:0;max-height:none;display:grid}.visual-frame:fullscreen .echarts-canvas{height:calc(100vh - 44px)}.callout{position:relative;border-left-width:3px!important}.callout-label{color:var(--accent);font:600 10px var(--sans);letter-spacing:.1em;align-items:center;gap:8px;margin-bottom:11px;display:flex}.callout-label:before{content:"";width:6px;height:6px;box-shadow:0 0 0 4px color-mix(in srgb, currentColor 12%, transparent);background:currentColor;border-radius:50%;display:block}.callout-tip,.callout-note{border-left-color:var(--text-soft)!important}.callout-warning,.callout-caution,.callout-important{border-left-color:var(--accent)!important}.prose h2,.prose h3,.prose h4{scroll-margin-top:96px;position:relative}.heading-anchor{font:.52em var(--mono);opacity:0;margin-left:9px;text-decoration:none;transition:opacity .2s,color .2s;color:var(--text-soft)!important}.prose h2:hover .heading-anchor,.prose h3:hover .heading-anchor,.prose h4:hover .heading-anchor,.heading-anchor:focus-visible{opacity:.65}.heading-anchor[data-copied=true]:after{content:" 已复制";font-size:10px}.toc a[aria-current=location]{color:var(--accent)!important}.article-image{margin:42px 0}.article-image img{border:1px solid var(--line);cursor:zoom-in;border-radius:12px;width:100%;height:auto;display:block;margin:0!important}.article-image img:focus-visible{outline:2px solid var(--accent);outline-offset:5px}.article-image figcaption{max-width:88%;color:var(--text-soft);text-align:center;margin:12px auto 0;font-size:12px;line-height:1.65}.prose p:has(>img+img),.prose p:has(>a>img):has(>a+a){grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.prose p:has(>img+img) img,.prose p:has(>a>img):has(>a+a) img{object-fit:cover;height:100%;margin:0}.image-lightbox{border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--bg);width:min(96vw,1500px);max-width:none;height:min(94vh,1100px);max-height:none;color:var(--text);padding:0;overflow:hidden}.image-lightbox::backdrop{backdrop-filter:blur(8px);background:#000000b8}.image-lightbox[open]{flex-direction:column;display:flex}.lightbox-toolbar{border-bottom:1px solid var(--line);min-height:48px;color:var(--text-soft);align-items:center;gap:14px;padding:0 12px 0 18px;font-size:12px;display:flex}.lightbox-toolbar span{text-overflow:ellipsis;white-space:nowrap;min-width:0;margin-right:auto;overflow:hidden}.lightbox-toolbar a{color:var(--text-soft);white-space:nowrap;text-decoration:none}.lightbox-toolbar a:hover{color:var(--accent)}.lightbox-toolbar{flex-shrink:0}.image-lightbox-viewport{overscroll-behavior:contain;flex:1;min-height:0;overflow:auto}.image-lightbox-viewport img{object-fit:contain;cursor:zoom-in;width:100%;height:100%;display:block}.image-lightbox-viewport.is-zoomed img{width:max(100%, var(--image-width));cursor:zoom-out;max-width:none;height:auto}@media (width>=1080px){.prose .visual-frame{width:min(740px,100vw - 360px)}}@media (width<=640px){.reader-toolbar{flex-direction:column;align-items:flex-start;padding:11px 12px}.reader-actions{width:100%}.visual-frame{margin-inline:-6px}.diagram-viewport{padding:16px 12px}.echarts-canvas{height:320px;padding:5px}.prose p:has(>img+img),.prose p:has(>a>img):has(>a+a){grid-template-columns:1fr}.lightbox-toolbar span{display:none}}@media (prefers-reduced-motion:reduce){.mermaid svg{transition:none}}