@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap");:root{--bg-color:#ffffff;--text-color:#374151;--heading-color:#111827;--muted-color:#6b7280;--border-color:#e5e7eb;--link-color:#111827;--link-hover-color:#4b5563;--panel-bg:#f6f8fa;--code-bg:#f9fafb;--accent-color:#111827;--highlight-bg:rgba(37,99,235,0.12);--hover-overlay:rgba(0,0,0,0.06);--copy-btn-bg:rgba(255,255,255,0.9);--copy-btn-color:#374151;--copy-btn-border:1px solid var(--border-color);--copy-btn-hover-bg:rgba(0,0,0,0.06)}body.dark-mode{--bg-color:#0a0a0a;--text-color:#d4d4d4;--heading-color:#fafafa;--muted-color:#a1a1aa;--border-color:#262626;--link-color:#e5e7eb;--link-hover-color:#ffffff;--panel-bg:#0f0f0f;--code-bg:#111111;--accent-color:#ffffff;--highlight-bg:rgba(59,130,246,0.28);--hover-overlay:rgba(255,255,255,0.06);--copy-btn-bg:rgba(17,17,17,0.75);--copy-btn-color:var(--text-color);--copy-btn-border:1px solid rgba(255,255,255,0.08);--copy-btn-hover-bg:rgba(255,255,255,0.08);--underline-neutral:rgba(229,231,235,0.35)}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;margin:0;padding:0;background-color:var(--bg-color);color:var(--text-color);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.reading-progress-bar{position:fixed;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--link-color),var(--accent-color));z-index:9999;transform-origin:left;transform:scaleX(0);will-change:transform}body,html{overflow-x:hidden}html{scroll-behavior:smooth}::selection{background:var(--highlight-bg);color:var(--heading-color)}::-moz-selection{background:var(--highlight-bg);color:var(--heading-color)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--link-color);outline-offset:2px;border-radius:4px}body::-webkit-scrollbar{width:12px}body::-webkit-scrollbar-track{background:var(--bg-color)}body::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:6px;border:3px solid var(--bg-color)}body::-webkit-scrollbar-thumb:hover{background:var(--muted-color)}.blog-layout{display:flex;max-width:1400px;margin:0 auto;position:relative;justify-content:center;gap:40px}.toc-sidebar{position:fixed;left:max(20px,calc(50% - 410px - 240px - 36px));top:58px;width:240px;height:fit-content;max-height:calc(100vh - 120px);padding:20px 12px 20px 0;flex-shrink:0;box-sizing:border-box}.toc-scroll{max-height:calc(100vh - 120px - 40px);overflow-y:auto;padding-right:8px;scrollbar-gutter:stable both-edges}.toc-nav{border-left:2px solid var(--border-color);padding-left:16px}.toc-controls{display:flex;align-items:center;justify-content:flex-start;gap:8px;margin-bottom:12px}.toc-controls .dark-mode-toggle{background:transparent;border:none;border-radius:9999px;padding:4px 6px;color:var(--text-color);cursor:pointer;line-height:0}.toc-controls .dark-mode-toggle:hover{background:var(--hover-overlay)}.toc-controls .dark-mode-toggle svg{width:20px;height:20px}.toc-title{display:none}.toc-list{list-style:none}.toc-item,.toc-list{padding:0;margin:0}.toc-link{display:block;font-size:.8rem;color:var(--muted-color);text-decoration:none;line-height:1.4;transition:color .3s ease,border-left-color .3s ease,font-weight .3s ease;border-left:2px solid transparent;margin-left:-18px;padding:6px 0 6px 16px}.toc-link:hover{color:var(--heading-color)}.toc-item.active .toc-link{color:var(--heading-color);border-left-color:var(--heading-color);font-weight:500}.toc-item.ancestor-active .toc-link{color:color-mix(in srgb,var(--heading-color) 75%,var(--muted-color));border-left-color:color-mix(in srgb,var(--heading-color) 60%,transparent);font-weight:500}.toc-item.sibling-active .toc-link{color:color-mix(in srgb,var(--heading-color) 55%,var(--muted-color));border-left-color:color-mix(in srgb,var(--heading-color) 45%,transparent)}.toc-item.active.toc-level-2 .toc-link{color:var(--heading-color);border-left-color:var(--heading-color);font-weight:700}.toc-level-2 .toc-link{padding-left:32px;font-size:.78rem}.toc-scroll{scrollbar-width:thin;scrollbar-color:var(--border-color) transparent}.toc-scroll::-webkit-scrollbar{width:6px}.toc-scroll::-webkit-scrollbar-track{background:transparent}.toc-scroll::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px;border:2px solid transparent;background-clip:padding-box}.toc-scroll:hover::-webkit-scrollbar-thumb{background:var(--muted-color)}@media (max-width:1320px) and (min-width:1201px){.toc-sidebar{left:max(12px,calc(50% - 380px - 220px - 24px));width:220px;padding:16px 10px 16px 0}.toc-scroll{padding-right:10px}.toc-link{font-size:.78rem}.toc-level-2 .toc-link{font-size:.74rem}}header{text-align:center;padding:30px;position:relative}.container{max-width:760px;margin:0 auto;padding:20px 30px 80px;width:100%}.blog-layout .container header{padding:0}.subscribe-section{padding:16px;background:var(--panel-bg);border:1px solid var(--border-color);border-radius:12px;margin:0 0 24px}.subscribe-description{margin:0 0 12px;color:var(--muted-color);font-size:.92rem}.subscribe-form{display:flex;align-items:center;gap:8px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.subscribe-input{flex:1;appearance:none;-webkit-appearance:none;background:var(--bg-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:10px;padding:10px 12px;font-size:.95rem;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}.subscribe-input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 3px var(--highlight-bg)}.subscribe-button{border:1px solid var(--border-color);background:var(--accent-color);color:var(--bg-color);border-radius:10px;padding:10px 14px;font-weight:600;font-size:.95rem;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,opacity .15s ease,background .2s ease,border-color .2s ease}.subscribe-button:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(0,0,0,.15)}body.dark-mode .subscribe-button:hover{box-shadow:0 6px 16px rgba(255,255,255,.06)}.subscribe-error{margin-top:10px;color:#ef4444;font-size:.9rem}.subscribe-success{margin-top:10px;color:#10b981;font-size:.9rem}.blog-layout .container{background:transparent;box-shadow:none;border-radius:0;border:0}.back-button{text-decoration:none;color:var(--heading-color);display:inline-flex;align-items:center;margin-bottom:0;transition:color .2s ease,opacity .2s ease;font-size:1.15rem;font-weight:700;letter-spacing:-.02em;padding:0;border-radius:0;margin-left:0;background:linear-gradient(135deg,var(--heading-color) 0,var(--text-color) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.back-button:hover{color:var(--link-color);opacity:.9}.blog-post-title{font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Helvetica,Arial,sans-serif;font-weight:800;letter-spacing:-.03em;font-size:2.25rem;line-height:1.2;margin:0 0 16px;color:var(--heading-color);background:var(--heading-color);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}nav{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.blog-post-date{font-size:.85rem;margin:8px 0 48px;font-weight:400;letter-spacing:.01em}.blog-post-date,.reading-time{color:var(--muted-color)}.blog-post{animation:fadeIn .6s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.blog-post-content{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;font-size:.95rem;color:var(--text-color);line-height:1.75;font-weight:400}.blog-post-content p{margin:0 0 1.5em;letter-spacing:.01em;font-size:1em}.blog-post-content>p:first-of-type{font-size:1rem;color:var(--heading-color);font-weight:400}.blog-post-content h2{font-size:1.6rem;margin:2.5em 0 .75em;line-height:1.3;font-weight:700;letter-spacing:-.02em}.blog-post-content h2,.blog-post-content h3{color:var(--heading-color);scroll-margin-top:100px;position:relative}.blog-post-content h3{font-size:1.25rem;margin:2em 0 .6em;line-height:1.35;font-weight:600;letter-spacing:-.015em}.heading-anchor{position:absolute;left:-1.5em;padding-right:.5em;color:var(--muted-color);text-decoration:none;opacity:0;transition:opacity .2s ease,color .2s ease;font-weight:400}.blog-post-content h2:hover .heading-anchor,.blog-post-content h3:hover .heading-anchor{opacity:1}.heading-anchor:hover{color:var(--link-color)}@media (max-width:768px){.heading-anchor{display:none}}.blog-post-content a{color:var(--link-color);text-underline-offset:3px;text-decoration:none;transition:color .2s ease,border-color .2s ease;border-bottom:1px solid color-mix(in srgb,var(--heading-color) 30%,transparent)}.blog-post-content a:hover{color:var(--link-hover-color);border-bottom-color:color-mix(in srgb,var(--heading-color) 55%,transparent)}.link-preview-card{position:fixed;z-index:1000;min-width:280px;max-width:420px;background:var(--bg-color);color:var(--text-color);border:1px solid var(--border-color);border-radius:10px;box-shadow:0 12px 40px rgba(0,0,0,.22);padding:12px;opacity:0;pointer-events:none;transition:opacity .12s ease,transform .12s ease,box-shadow .12s ease;transform:translateY(0);backdrop-filter:saturate(1.2)}.link-preview-card .lp-row{display:grid;grid-template-columns:72px 1fr;gap:12px;align-items:start}.link-preview-card .lp-thumb{width:72px;height:72px;border-radius:8px;object-fit:cover;background:var(--panel-bg);border:1px solid var(--border-color)}.link-preview-card .lp-thumb--fallback{display:block}.link-preview-card .lp-body{min-width:0}.link-preview-card .lp-title{font-weight:700;color:var(--heading-color);font-size:.95rem;line-height:1.35;margin-bottom:6px;line-clamp:2;-webkit-line-clamp:2}.link-preview-card .lp-desc,.link-preview-card .lp-title{overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-box-orient:vertical}.link-preview-card .lp-desc{color:var(--muted-color);font-size:.85rem;line-height:1.4;margin-bottom:8px;line-clamp:3;-webkit-line-clamp:3}.link-preview-card .lp-host{display:flex;align-items:center;gap:6px;color:var(--muted-color);font-size:.8rem}.link-preview-card .lp-favicon{width:14px;height:14px;border-radius:3px}.link-preview-card .lp-skeleton{background:linear-gradient(90deg,rgba(0,0,0,.06),rgba(0,0,0,.12),rgba(0,0,0,.06));background-size:200% 100%;animation:lpShimmer 1.2s infinite}.link-preview-card .lp-title.lp-skeleton{height:16px;width:80%;border-radius:4px}.link-preview-card .lp-desc.lp-skeleton{height:36px;width:95%;border-radius:4px}@keyframes lpShimmer{0%{background-position:200% 0}to{background-position:-200% 0}}body.dark-mode .blog-post-content a{border-bottom-color:var(--underline-neutral)}body.dark-mode .blog-post-content a:hover{border-bottom-color:rgba(255,255,255,.6)}.blog-post-content img{max-width:100%;height:auto;border-radius:8px;margin:2em 0;box-shadow:0 4px 16px rgba(0,0,0,.3);border:1px solid var(--border-color)}.blog-post-content figure{margin:2em 0 4em;display:flex;flex-direction:column;align-items:center}.blog-post-content figure img{margin:0}.blog-post-content figcaption{margin-top:8px;color:var(--muted-color);font-size:.9em;line-height:1.5;text-align:center;padding:0 48px}.blog-post-content img[src$=".svg"]{padding:16px;background:var(--panel-bg);box-sizing:border-box}.blog-post-content svg{display:block;max-width:100%;height:auto;padding:12px;background:var(--panel-bg);border:1px solid var(--border-color);border-radius:8px;margin:2em 0;box-shadow:0 4px 16px rgba(0,0,0,.3);box-sizing:border-box}.blog-post-content img{cursor:zoom-in;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease}.blog-post-content img:hover{box-shadow:0 8px 28px rgba(0,0,0,.4);transform:translateY(-1px);border-color:var(--muted-color);filter:saturate(1.02) contrast(1.02)}.image-lightbox-overlay{position:fixed;inset:0;background:rgba(0,0,0,.98);display:flex;align-items:center;justify-content:center;z-index:10000;opacity:0;transition:opacity .2s ease;overflow:hidden;overscroll-behavior:contain;user-select:none}.image-lightbox-overlay.open{opacity:1}.image-lightbox-content{position:relative;max-width:92vw;max-height:92vh}.image-lightbox-img{max-width:100%;max-height:92vh;border-radius:8px;box-shadow:0 8px 40px rgba(0,0,0,.6);transform-origin:center center;will-change:transform;cursor:zoom-out;user-select:none;-webkit-user-drag:none;touch-action:none}.image-lightbox-overlay.can-pan .image-lightbox-img{cursor:grab}.image-lightbox-overlay.is-panning .image-lightbox-img{cursor:grabbing}.image-lightbox-close{position:fixed;top:12px;right:12px;z-index:10001;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.25);border-radius:6px;padding:6px 10px;font-size:18px;line-height:1;cursor:pointer;backdrop-filter:blur(2px)}.image-lightbox-close:hover{background:rgba(255,255,255,.18)}@media (max-width:900px){.image-lightbox-close{top:8px;right:8px;background:rgba(0,0,0,.45);border-color:rgba(255,255,255,.25)}}.image-lightbox-caption{margin-top:10px;color:rgba(255,255,255,.85);text-align:center;font-size:.95rem}.blog-post-content blockquote{border-left:4px solid var(--link-color);color:var(--text-color);font-size:.98em;border-radius:0 6px 6px 0;font-style:italic}.blog-post-content blockquote,.blog-post-content details{margin:1.5em 0;padding:1em 1.25em;background:var(--panel-bg)}.blog-post-content details{border:1px solid var(--border-color);border-radius:8px;transition:border-color .2s ease}.blog-post-content details:hover{border-color:var(--muted-color)}.blog-post-content details>summary{cursor:pointer;list-style:none;font-weight:600;color:var(--heading-color);user-select:none;transition:color .2s ease}.blog-post-content details>summary:hover{color:var(--link-color)}.blog-post-content details>summary::-webkit-details-marker{display:none}.blog-post-content ol,.blog-post-content ul{margin:1em 0 1.5em;padding-left:1.75em}.blog-post-content li{margin:.5em 0;line-height:1.7}.blog-post-content li::marker{color:var(--link-color)}hr{display:block;height:2px;border:0;border-top:2px solid var(--border-color);margin:1em 0;padding:0}body.dark-mode hr{border-top-color:#333}.mobile-toc-toggle{display:none;position:fixed;bottom:24px;right:24px;width:56px;height:56px;border-radius:50%;background:var(--accent-color);color:var(--bg-color);border:none;box-shadow:0 4px 12px rgba(0,0,0,.3);cursor:pointer;z-index:100;transition:transform .2s ease,box-shadow .2s ease;will-change:transform}.mobile-toc-toggle:hover{transform:scale(1.05);box-shadow:0 6px 16px rgba(0,0,0,.4)}.mobile-toc-toggle svg{width:24px;height:24px}.mobile-toc-drawer{display:none;position:fixed;top:0;right:-320px;width:320px;height:100vh;background:var(--bg-color);border-left:1px solid var(--border-color);z-index:1000;overflow-y:auto;transition:right .3s ease;box-shadow:-4px 0 12px rgba(0,0,0,.1);will-change:right}.mobile-toc-drawer.open{right:0}.mobile-toc-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid var(--border-color)}.mobile-toc-header h3{margin:0;font-size:1.1rem;color:var(--heading-color);font-weight:600}.mobile-toc-header button{background:none;border:none;color:var(--text-color);cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background .2s ease}.mobile-toc-header button:hover{background:var(--hover-overlay)}.mobile-toc-header button svg{width:20px;height:20px}.mobile-toc-drawer .toc-nav{border-left:none;padding:20px}.mobile-toc-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:999;backdrop-filter:blur(2px)}@media (max-width:1200px){.toc-sidebar{display:none}.blog-layout,.mobile-toc-drawer,.mobile-toc-overlay,.mobile-toc-toggle{display:block}}@media (min-width:1201px){.blog-post-title{margin-top:54px}}@media (max-width:768px){.container{width:95%;padding:30px 20px 60px}.blog-post-title{font-size:2rem}.blog-post-content{font-size:.95rem}.blog-post-content h2{font-size:1.5rem}.blog-post-content h3{font-size:1.25rem}.subscribe-form{flex-direction:column;align-items:stretch}.subscribe-button{width:100%}}@media (max-width:480px){.blog-post-title{font-size:1.75rem}}.katex-display{margin:1em 0;overflow-x:visible;overflow-y:visible;text-align:center}.katex-inline{display:inline-block;vertical-align:baseline}.blog-post-content .katex{font-size:1em}.blog-post-content .shiki{background:var(--code-bg)!important;border-radius:8px;border:1px solid var(--border-color);padding:1.25em;margin:2em 0;overflow:auto;box-shadow:0 2px 8px rgba(0,0,0,.2)}.blog-post-content .shiki code{font-family:JetBrains Mono,Fira Code,Monaco,Courier New,monospace}.blog-post-content pre:has(.shiki){background:none;border:0;padding:0;margin:2em 0;box-shadow:none;position:relative;overflow:visible}pre code.hljs{display:block;overflow-x:auto;padding:1em;white-space:pre}code.hljs{padding:3px 5px;white-space:pre}.hljs{background:var(--bg-color)}.hljs,.hljs-subst{color:#2f3337}.hljs-comment{color:#656e77}.hljs-attr,.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-section,.hljs-selector-tag{color:#015692}.hljs-attribute{color:#803378}.hljs-name,.hljs-number,.hljs-quote,.hljs-selector-id,.hljs-template-tag,.hljs-type{color:#b75501}.hljs-selector-class{color:#015692}.hljs-link,.hljs-regexp,.hljs-selector-attr,.hljs-string,.hljs-symbol,.hljs-template-variable,.hljs-variable{color:#54790d}.hljs-meta,.hljs-selector-pseudo{color:#015692}.hljs-built_in,.hljs-literal,.hljs-title{color:#b75501}.hljs-bullet,.hljs-code{color:#535a60}.hljs-meta .hljs-string{color:#54790d}.hljs-deletion{color:#c02d2e}.hljs-addition{color:#2f6f44}.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}body.dark-mode pre code.hljs{display:block;overflow-x:auto;padding:1em;white-space:pre}body.dark-mode code.hljs{padding:3px 5px;white-space:pre}body.dark-mode .hljs{color:#abb2bf;background:var(--bg-color)}body.dark-mode .hljs-comment,body.dark-mode .hljs-quote{color:#5c6370;font-style:italic}body.dark-mode .hljs-doctag,body.dark-mode .hljs-formula,body.dark-mode .hljs-keyword{color:#c678dd}body.dark-mode .hljs-deletion,body.dark-mode .hljs-name,body.dark-mode .hljs-section,body.dark-mode .hljs-selector-tag,body.dark-mode .hljs-subst{color:#e06c75}body.dark-mode .hljs-literal{color:#56b6c2}body.dark-mode .hljs-addition,body.dark-mode .hljs-attribute,body.dark-mode .hljs-meta .hljs-string,body.dark-mode .hljs-regexp,body.dark-mode .hljs-string{color:#98c379}body.dark-mode .hljs-attr,body.dark-mode .hljs-number,body.dark-mode .hljs-selector-attr,body.dark-mode .hljs-selector-class,body.dark-mode .hljs-selector-pseudo,body.dark-mode .hljs-template-variable,body.dark-mode .hljs-type,body.dark-mode .hljs-variable{color:#d19a66}body.dark-mode .hljs-bullet,body.dark-mode .hljs-link,body.dark-mode .hljs-meta,body.dark-mode .hljs-selector-id,body.dark-mode .hljs-symbol,body.dark-mode .hljs-title{color:#61aeee}body.dark-mode .hljs-built_in,body.dark-mode .hljs-class .hljs-title,body.dark-mode .hljs-title.class_{color:#e6c07b}body.dark-mode .hljs-emphasis{font-style:italic}body.dark-mode .hljs-strong{font-weight:700}body.dark-mode .hljs-link{text-decoration:underline}.blog-post-content pre{background:var(--code-bg);border:1px solid var(--border-color);border-radius:8px;padding:0;margin:2em 0;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.2);transition:box-shadow .3s ease,border-color .3s ease;position:relative}.blog-post-content pre:hover{box-shadow:0 4px 16px rgba(0,0,0,.3);border-color:var(--muted-color)}.blog-post-content pre:has(.shiki:hover) .code-copy-btn{opacity:1;transform:translateY(0)}.blog-post-content pre code{display:block;padding:1.25em;font-family:JetBrains Mono,Fira Code,Monaco,Courier New,monospace;font-size:.875rem;line-height:1.6;overflow-x:auto}.blog-post-content pre code::-webkit-scrollbar{height:8px}.blog-post-content pre code::-webkit-scrollbar-track{background:transparent}.blog-post-content pre code::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.blog-post-content pre code::-webkit-scrollbar-thumb:hover{background:var(--muted-color)}.blog-post-content code:not(pre code){background:var(--panel-bg);color:var(--link-color);padding:.2em .4em;border-radius:4px;font-family:JetBrains Mono,Fira Code,Monaco,Courier New,monospace;font-size:.9em;border:1px solid var(--border-color)}body.dark-mode pre code.hljs,code.hljs,pre,pre code.hljs{white-space:pre}body.dark-mode pre code.hljs,pre code.hljs{overflow-x:auto}.code-lang-label{left:12px;padding:4px 8px;background:var(--panel-bg);color:var(--muted-color);border-radius:4px;font-size:.7rem;font-weight:600;letter-spacing:.05em;opacity:.7;pointer-events:none}.code-copy-btn,.code-lang-label{position:absolute;top:8px;z-index:2;user-select:none}.code-copy-btn{right:8px;display:inline-flex;align-items:center;justify-content:center;gap:0;width:30px;height:30px;padding:0;border:var(--copy-btn-border);background:var(--copy-btn-bg);color:var(--copy-btn-color);border-radius:6px;font-size:12px;line-height:1;cursor:pointer;opacity:0;transform:translateY(-2px);box-shadow:0 1px 2px rgba(0,0,0,.06);transition:opacity .15s ease,transform .15s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease}.blog-post-content pre:focus-within .code-copy-btn,.blog-post-content pre:hover .code-copy-btn{opacity:1;transform:translateY(0)}.code-copy-btn:hover{background:var(--copy-btn-hover-bg);box-shadow:0 2px 6px rgba(0,0,0,.12)}.code-copy-btn svg{width:16px;height:16px;display:block;padding:0;margin:0;background:none;border:0;box-shadow:none;transition:transform .15s ease}.code-copy-btn:active svg{transform:scale(.95)}.code-copy-btn.copied{background:rgba(16,185,129,.15);color:#34d399;border-color:rgba(16,185,129,.35);box-shadow:0 2px 8px rgba(16,185,129,.15)}.code-copy-btn:focus-visible{outline:2px solid rgba(59,130,246,.5);outline-offset:2px}.code-copy-btn .copy-label{font-weight:600;letter-spacing:.01em}.blog-post-content .katex{font-size:1.15em}.blog-post-content .katex-display{font-size:1.2em;margin:2em 0;padding:1.5em 0;overflow-x:auto;overflow-y:visible}.blog-post-content table{width:100%;border-collapse:collapse;margin:2em 0;font-size:.95em;box-shadow:0 2px 8px rgba(0,0,0,.15);border-radius:8px;overflow:hidden}.blog-post-content th{background:var(--panel-bg);color:var(--heading-color);font-weight:600;text-align:left;padding:12px 16px;border-bottom:2px solid var(--border-color)}.blog-post-content td{padding:10px 16px;border-bottom:1px solid var(--border-color)}.blog-post-content tr:last-child td{border-bottom:none}.blog-post-content tr:hover{background:rgba(56,139,253,.05)}.footnote-container{position:relative;display:inline-block;margin-right:.15em}.footnote-ref{font-size:.75em;vertical-align:super;color:var(--muted-color);cursor:pointer;font-weight:600}.footnote-text{position:fixed;left:calc(50% + 380px + 20px);transform:none;margin-top:-.2em;width:280px;font-size:.72em;line-height:1.6;color:var(--muted-color);padding:12px 16px;background:var(--panel-bg);border-left:3px solid rgba(192,192,192,.35);border-radius:6px;z-index:10;pointer-events:auto;user-select:text;box-shadow:0 1px 8px rgba(0,0,0,.2);transition:border-color .24s ease,box-shadow .24s ease,background-color .24s ease;cursor:pointer}.footnote-ref--highlight{color:var(--heading-color);background:color-mix(in srgb,var(--link-color) 10%,transparent);border-radius:4px;transition:box-shadow .2s ease,background-color .2s ease,color .2s ease}.footnote-ref--highlight,.footnote-text--highlight{box-shadow:0 0 0 3px color-mix(in srgb,var(--link-color) 25%,transparent)}.footnote-text--highlight{border-left-color:var(--link-color);background-color:color-mix(in srgb,var(--panel-bg) 85%,var(--link-color) 15%)}.footnote-text .footnote-num{color:var(--muted-color);font-weight:700;margin-right:6px}@media (max-width:1200px){.footnote-text{position:static;display:block;transform:none;width:auto;margin-left:.5em;margin-top:4px}.footnote-container{display:inline-block}}.katex-html{visibility:hidden}