geektime-reader[data-astro-cid-nsdhyoxp]{--reader-line:var(--c-border-soft);--reader-muted:var(--c-text-muted);--reader-math-accent:#b05c78;--reader-math-ink:color-mix(in srgb, var(--c-text) 68%, var(--reader-math-accent) 32%);--reader-math-line:color-mix(in srgb, var(--c-border-soft) 48%, var(--reader-math-accent) 52%);--reader-math-surface:color-mix(in srgb, var(--c-bg) 95%, var(--reader-math-accent) 5%);--reader-skeleton-base:color-mix(in srgb, var(--c-surface-soft) 90%, var(--c-text) 10%);--reader-skeleton-glow:color-mix(in srgb, var(--c-bg) 74%, white 26%);display:block}.reader-layout[data-astro-cid-nsdhyoxp]{width:100%;max-width:96rem;margin-inline:auto}geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-layout[data-astro-cid-nsdhyoxp]{min-height:calc(100svh - 7rem)}.reader-main[data-astro-cid-nsdhyoxp]{width:100%;min-width:0;max-width:54rem;margin-inline:auto;position:relative}.reader-course-panel[data-astro-cid-nsdhyoxp],.reader-toc-panel[data-astro-cid-nsdhyoxp],.reader-panel-skeleton[data-astro-cid-nsdhyoxp],.reader-floating-controls[data-astro-cid-nsdhyoxp],geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-floating-controls[data-astro-cid-nsdhyoxp]{display:none}geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-course-panel[data-astro-cid-nsdhyoxp],geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-toc-panel[data-astro-cid-nsdhyoxp]{display:none!important}.reader-course-panel[data-astro-cid-nsdhyoxp][hidden],.reader-toc-panel[data-astro-cid-nsdhyoxp][hidden],.reader-actions[data-astro-cid-nsdhyoxp][hidden]{display:none}.reader-breadcrumb[data-astro-cid-nsdhyoxp]{color:var(--c-text-faint);align-items:center;gap:.45rem;margin-bottom:1.75rem;font-size:.7rem;display:flex}.reader-breadcrumb-skeleton[data-astro-cid-nsdhyoxp]{align-items:center;gap:.45rem;height:1rem;margin-bottom:1.75rem;display:none}geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-breadcrumb[data-astro-cid-nsdhyoxp]{display:none}geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-breadcrumb-skeleton[data-astro-cid-nsdhyoxp]{display:flex}.reader-breadcrumb-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]{border-radius:999px;width:2.6rem;height:.58rem}.reader-breadcrumb-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(2){width:.35rem}.reader-breadcrumb-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(3){width:6.5rem}.reader-breadcrumb[data-astro-cid-nsdhyoxp] a[data-astro-cid-nsdhyoxp]{color:inherit;border-bottom:1px solid #0000;text-decoration:none;transition:border-color .2s,color .2s}.reader-breadcrumb[data-astro-cid-nsdhyoxp] a[data-astro-cid-nsdhyoxp]:hover,.reader-breadcrumb[data-astro-cid-nsdhyoxp] a[data-astro-cid-nsdhyoxp]:focus-visible{border-color:var(--c-border-strong);color:var(--c-text)}.reader-header[data-astro-cid-nsdhyoxp]{border-bottom:1px solid var(--reader-line);padding-bottom:1.75rem;position:relative}.reader-header-skeleton[data-astro-cid-nsdhyoxp]{display:none}geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-header-skeleton[data-astro-cid-nsdhyoxp]{gap:.7rem;display:grid}geektime-reader[data-astro-cid-nsdhyoxp][data-loading] .reader-header-content[data-astro-cid-nsdhyoxp]{display:none}.reader-breadcrumb-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp],.reader-header-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp],.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp],.reader-panel-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]{isolation:isolate;background:var(--reader-skeleton-base);border-radius:.25rem;display:block;position:relative;overflow:hidden}.reader-breadcrumb-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:after,.reader-header-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:after,.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:after,.reader-panel-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:after,.reader-panel-skeleton-fill[data-astro-cid-nsdhyoxp]:after{z-index:1;background:linear-gradient(100deg, transparent 18%, color-mix(in srgb, var(--reader-skeleton-glow) 82%, transparent) 46%, transparent 72%);content:"";will-change:transform;animation:1.8s cubic-bezier(.4,0,.2,1) infinite reader-shimmer;position:absolute;inset:0;transform:translate(-115%)}.reader-header-skeleton-title[data-astro-cid-nsdhyoxp]{width:min(38rem,88%);height:clamp(2rem,5vw,2.8rem);margin-top:.2rem}.reader-header-skeleton-title-short[data-astro-cid-nsdhyoxp]{width:min(25rem,58%);margin-top:-.35rem}.reader-header-skeleton-actions[data-astro-cid-nsdhyoxp]{width:min(19rem,72%);height:2rem;margin-top:.65rem}.reader-header[data-astro-cid-nsdhyoxp] h1[data-astro-cid-nsdhyoxp]{max-width:100%;color:var(--c-text);font-family:var(--font-article-title);letter-spacing:-.035em;overflow-wrap:break-word;text-wrap:wrap;margin:0;font-size:clamp(1.85rem,3.4vw,2.75rem);font-style:italic;font-weight:400;line-height:1.15}.reader-actions[data-astro-cid-nsdhyoxp]{flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:1.25rem;display:flex}.reader-actions[data-astro-cid-nsdhyoxp] .post-actions{margin-bottom:0;display:contents}.reader-mindmap-trigger[data-astro-cid-nsdhyoxp]{border:1px solid var(--c-border-soft);color:var(--c-text-muted);white-space:nowrap;cursor:pointer;background:0 0;border-radius:4px;flex:none;align-items:center;gap:.35rem;padding:.35rem .7rem;font-size:.8rem;font-weight:500;line-height:1.2;transition:border-color .2s,color .2s,transform .14s cubic-bezier(.23,1,.32,1);display:inline-flex}.reader-mindmap-trigger[data-astro-cid-nsdhyoxp]:hover,.reader-mindmap-trigger[data-astro-cid-nsdhyoxp]:focus-visible{border-color:var(--diagram-rule-solid);background:var(--diagram-paper-2);color:var(--diagram-ink)}.reader-mindmap-trigger[data-astro-cid-nsdhyoxp]:active{transform:scale(.97)}.reader-mindmap-dialog[data-astro-cid-nsdhyoxp]{border:1px solid var(--diagram-rule);border-radius:var(--diagram-radius-frame);background:var(--diagram-paper);width:min(94vw,84rem);max-width:none;height:min(88svh,54rem);max-height:none;color:var(--c-text);padding:0;overflow:hidden;box-shadow:0 30px 90px #00000040}.reader-mindmap-dialog[data-astro-cid-nsdhyoxp]::backdrop{background:var(--c-scrim);backdrop-filter:blur(7px)}.reader-mindmap-shell[data-astro-cid-nsdhyoxp]{flex-direction:column;height:100%;min-height:0;display:flex}.reader-mindmap-header[data-astro-cid-nsdhyoxp]{border-bottom:1px solid var(--diagram-rule);background:var(--diagram-paper);flex:none;justify-content:space-between;align-items:center;gap:1rem;min-height:4.5rem;padding:.85rem 1rem .85rem 1.15rem;display:flex}.reader-mindmap-heading[data-astro-cid-nsdhyoxp]{min-width:0}.reader-mindmap-kicker[data-astro-cid-nsdhyoxp]{color:var(--diagram-soft);font-family:var(--diagram-font-mono);letter-spacing:.18em;margin-bottom:.12rem;font-size:.5rem;display:block}.reader-mindmap-heading[data-astro-cid-nsdhyoxp] h2[data-astro-cid-nsdhyoxp]{color:var(--diagram-ink);font-family:var(--diagram-font-node);text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:clamp(.95rem,2vw,1.15rem);font-weight:600;line-height:1.35;overflow:hidden}.reader-mindmap-tools[data-astro-cid-nsdhyoxp]{flex:none;align-items:center;gap:.3rem;display:inline-flex}.reader-mindmap-tools[data-astro-cid-nsdhyoxp] button[data-astro-cid-nsdhyoxp]{border-radius:var(--diagram-radius-node);min-width:2.75rem;height:2.75rem;color:var(--diagram-muted);cursor:pointer;background:0 0;border:1px solid #0000;justify-content:center;align-items:center;padding:0 .5rem;transition:background-color .16s,border-color .16s,color .16s;display:inline-flex}.reader-mindmap-tools[data-astro-cid-nsdhyoxp] button[data-astro-cid-nsdhyoxp]:hover,.reader-mindmap-tools[data-astro-cid-nsdhyoxp] button[data-astro-cid-nsdhyoxp]:focus-visible{border-color:var(--diagram-rule);background:var(--diagram-paper-2);color:var(--diagram-ink)}.reader-mindmap-tools[data-astro-cid-nsdhyoxp] .reader-mindmap-fit[data-astro-cid-nsdhyoxp]{min-width:3.2rem;font-size:.72rem}.reader-mindmap-tools[data-astro-cid-nsdhyoxp] .reader-mindmap-close[data-astro-cid-nsdhyoxp]{margin-left:.35rem}.reader-mindmap-viewport[data-astro-cid-nsdhyoxp]{background:var(--diagram-paper);scrollbar-color:var(--diagram-rule-solid) transparent;scrollbar-width:thin;overscroll-behavior:contain;flex:1;min-height:0;padding:1.5rem;position:relative;overflow:auto}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp]{transform-origin:0 0;max-width:none;margin:auto;display:block;overflow:visible}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-edge{fill:none;stroke:var(--diagram-muted);stroke-linecap:round;stroke-linejoin:round;stroke-width:1px;vector-effect:non-scaling-stroke}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node{color:var(--diagram-ink);cursor:pointer;outline:none}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node rect{fill:var(--diagram-paper);stroke:var(--diagram-rule-solid);stroke-width:1px;transition:fill .16s,stroke .16s}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node[data-root=true] rect{fill:var(--diagram-accent-tint);stroke:var(--diagram-accent);stroke-width:1.2px}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node[data-leaf=true] rect{fill:var(--diagram-paper-2);stroke-width:.8px}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node:hover rect,.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node:focus-visible rect{fill:var(--diagram-paper-2);stroke:var(--diagram-accent)}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node text{fill:currentColor;font-family:var(--diagram-font-node);pointer-events:none;font-size:12px;font-weight:600}.reader-mindmap-canvas[data-astro-cid-nsdhyoxp] .reader-mindmap-node[data-root=true] text{font-size:12px;font-weight:600}.reader-mindmap-hint[data-astro-cid-nsdhyoxp]{border-top:1px solid var(--diagram-rule);color:var(--diagram-soft);font-family:var(--diagram-font-mono);text-align:center;flex:none;margin:0;padding:.55rem 1rem .65rem;font-size:.55rem}.reader-state[data-astro-cid-nsdhyoxp]{min-height:max(34rem,100svh - 14rem);padding-top:2.25rem}.reader-state[data-astro-cid-nsdhyoxp].is-error{color:#dc2626;text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:.65rem;min-height:16rem;font-size:.8rem;display:flex}.dark .reader-state[data-astro-cid-nsdhyoxp].is-error{color:#f87171}.reader-error-back{border:1px solid var(--reader-line);min-height:2.25rem;color:var(--c-text-muted);cursor:pointer;font:inherit;background:0 0;border-radius:.375rem;justify-content:center;align-items:center;padding:.5rem .75rem;text-decoration:none;transition:background-color .2s,border-color .2s,color .2s;display:inline-flex}.reader-error-back:hover,.reader-error-back:focus-visible{border-color:var(--c-border-strong);background:var(--c-surface-hover);color:var(--c-text)}.reader-error-actions{flex-wrap:wrap;justify-content:center;gap:.55rem;margin-top:.35rem;display:flex}.reader-error-retry{border-color:var(--c-border-strong);background:var(--c-surface-soft);color:var(--c-text)}.reader-state[data-astro-cid-nsdhyoxp][hidden]{display:none}.reader-skeleton[data-astro-cid-nsdhyoxp]{align-content:start;gap:1rem;padding-bottom:2rem;display:grid}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]{border-radius:.2rem;height:.82rem}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:first-child{width:94%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(2){width:100%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(3){width:86%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(4){width:100%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(5){width:97%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(6){width:88%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(7){width:94%;margin-top:.9rem}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(8){width:72%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(9),.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(15){width:34%;height:1.25rem;margin-top:1rem}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(10),.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(16){width:98%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(11),.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(17){width:91%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(12),.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(18){width:76%}.reader-skeleton[data-astro-cid-nsdhyoxp] span[data-astro-cid-nsdhyoxp]:nth-child(13){width:95%}.reader-skeleton[data-astro-cid-nsdhyoxp] .reader-skeleton-media[data-astro-cid-nsdhyoxp]{border-radius:.5rem;width:100%;height:clamp(10rem,23vw,15rem);margin-block:1rem .6rem}.reader-content[data-astro-cid-nsdhyoxp]{max-width:none;padding-top:1.75rem}.reader-content[data-astro-cid-nsdhyoxp] img{border-radius:.5rem;height:auto}.reader-content[data-astro-cid-nsdhyoxp] .katex{color:var(--reader-math-ink)}.reader-content[data-astro-cid-nsdhyoxp] .katex-display{border:1px solid var(--reader-math-line);background:var(--reader-math-surface);scrollbar-color:var(--reader-math-line) transparent;scrollbar-width:thin;-webkit-overflow-scrolling:touch;border-left-width:3px;border-radius:.5rem;max-width:100%;margin:1.5rem 0;padding:clamp(.85rem,2vw,1.15rem) clamp(.9rem,2.4vw,1.35rem);overflow:auto hidden}.reader-content[data-astro-cid-nsdhyoxp] pre{border:1px solid var(--reader-line);background:var(--c-surface-soft);border-radius:.5rem;padding:1rem;overflow-x:auto}.reader-content[data-astro-cid-nsdhyoxp] pre code{background:0 0;padding:0;font-size:.82rem}.reader-content[data-astro-cid-nsdhyoxp] :not(pre)>code{color:color-mix(in srgb, var(--c-text) 70%, #b45372 30%);font-weight:520}.dark .reader-content[data-astro-cid-nsdhyoxp] :not(pre)>code{color:color-mix(in srgb, var(--c-text) 72%, #f9a8d4 28%)}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-block{--reader-code-bg:#fff;--reader-code-header-bg:#fff;--reader-code-border:var(--c-border-soft);--reader-code-shadow:#0f172a0d;border:1px solid var(--reader-code-border);background:var(--reader-code-bg);box-shadow:0 1px 2px var(--reader-code-shadow);border-radius:.4rem;margin:1em 0;position:relative;overflow:hidden}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-toolbar{z-index:2;border-bottom:1px solid var(--reader-code-border);background:var(--reader-code-header-bg);min-height:2.1rem;color:var(--c-text-muted);pointer-events:none;align-items:center;padding:.45rem .65rem;display:flex;position:relative}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-window-controls{align-items:center;gap:.4rem;display:inline-flex}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-window-dot{border-radius:50%;width:.55rem;height:.55rem;display:inline-block}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-window-dot.is-close{background:#ff5f57}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-window-dot.is-minimize{background:#ffbd2e}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-window-dot.is-maximize{background:#28c840}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-language{color:var(--c-text-muted);font-family:var(--font-mono);letter-spacing:.03em;opacity:.78;text-transform:uppercase;border-radius:.25rem;padding:.1rem .45rem;font-size:.62rem;position:absolute;bottom:.35rem;right:.5rem}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-block[data-terminal=true] .reader-code-language{display:none}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy{z-index:1;width:1.75rem;height:1.75rem;color:var(--c-text-muted);opacity:.68;pointer-events:auto;background:0 0;border:0;border-radius:.3rem;justify-content:center;align-items:center;padding:0;font-size:.95rem;transition:opacity .16s,background-color .16s,color .16s,transform .14s cubic-bezier(.23,1,.32,1);display:inline-flex;position:absolute;top:.175rem;right:.25rem}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-block:hover .reader-code-copy,.reader-content[data-astro-cid-nsdhyoxp] .reader-code-block:focus-within .reader-code-copy,.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy:hover,.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy:focus-visible,.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy[data-copied=true]{background:var(--c-surface-hover);color:var(--c-text);opacity:1}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy:active{transform:scale(.96)}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy:focus-visible{outline:2px solid var(--c-border-strong);outline-offset:1px}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy-label{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy-feedback{z-index:2;background:var(--c-text);color:var(--c-bg);font-family:var(--font-sans);white-space:nowrap;opacity:0;visibility:hidden;pointer-events:none;transform-origin:100%;border-radius:.35rem;padding:.25rem .55rem;font-size:.72rem;font-weight:500;line-height:1.3;transition:opacity .16s cubic-bezier(.23,1,.32,1),transform .16s cubic-bezier(.23,1,.32,1),visibility 0s linear .16s;position:absolute;top:50%;right:2.55rem;transform:translate(.25rem,-50%)scale(.97);box-shadow:0 4px 14px #0000001f}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy-feedback:after{content:"";border-top:.38rem solid #0000;border-bottom:.38rem solid #0000;border-left:.42rem solid var(--c-text);width:0;height:0;position:absolute;top:50%;right:-.38rem;transform:translateY(-50%)}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-copy-feedback[data-visible=true]{opacity:1;visibility:visible;transition-delay:0s;transform:translateY(-50%)scale(1)}.reader-content[data-astro-cid-nsdhyoxp] .reader-code-block>pre{background:var(--reader-code-bg);border:0;border-radius:0;margin:0;padding:.85rem 1rem}.dark .reader-content[data-astro-cid-nsdhyoxp] 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