.post-progress{position:sticky;top:var(--kb-nav-h);z-index:calc(var(--kb-z-nav) - 1);height:3px;background:transparent}.post-progress i{display:block;width:0;height:100%;background:var(--kb-accent);transition:width 80ms linear}.post-wrap{max-width:1080px}.post-crumbs{display:flex;flex-wrap:wrap;gap:var(--kb-space-2);padding:var(--kb-space-5) 0 var(--kb-space-3);font-size:var(--kb-text-sm);color:var(--kb-muted)}.kb2 .post-crumbs a{color:var(--kb-muted);text-decoration:none}.kb2 .post-crumbs a:hover{color:var(--kb-accent)}.kb2 .post-head h1{font-size:clamp(1.6rem,1.15rem + 2vw,2.4rem);margin-bottom:var(--kb-space-3)}.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:var(--kb-space-2);color:var(--kb-muted);font-size:var(--kb-text-sm);margin-bottom:var(--kb-space-5)}.post-cover{margin:0 0 var(--kb-space-6);border-radius:var(--kb-radius-lg);overflow:hidden;background:var(--kb-bg-sunken)}.post-cover img{display:block;width:100%;height:auto;max-height:520px;object-fit:cover}.post-layout{display:grid;gap:var(--kb-space-6)}@media(min-width:1000px){.post-layout.has-toc{grid-template-columns:minmax(0,1fr) 220px}}.post-main{min-width:0;max-width:720px}.post-content{font-size:1.0625rem;line-height:1.85;color:var(--kb-ink);overflow-wrap:anywhere}.post-content>:first-child{margin-top:0}.post-content p{margin:0 0 1.1em}.kb2 .post-content h2{font-size:var(--kb-text-xl);margin:2em 0 .7em;padding-bottom:.3em;border-bottom:1px solid var(--kb-border);scroll-margin-top:calc(var(--kb-nav-h) + 16px)}.kb2 .post-content h3{font-size:var(--kb-text-lg);margin:1.6em 0 .6em;scroll-margin-top:calc(var(--kb-nav-h) + 16px)}.post-content img,.post-content video,.post-content iframe{max-width:100%;height:auto;border-radius:var(--kb-radius)}.post-content blockquote{margin:1.2em 0;padding:.6em 1em;border-left:3px solid var(--kb-accent);background:var(--kb-bg-sunken);border-radius:0 var(--kb-radius-sm) var(--kb-radius-sm) 0;color:var(--kb-ink)}.post-content ul,.post-content ol{padding-left:1.4em;margin:0 0 1.1em}.post-content li+li{margin-top:.3em}.post-content table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:var(--kb-text-sm);display:block;overflow-x:auto}.post-content th,.post-content td{border:1px solid var(--kb-border);padding:.5em .75em;text-align:left}.post-content th{background:var(--kb-bg-sunken)}.post-content pre{background:var(--kb-bg-sunken);padding:var(--kb-space-4);border-radius:var(--kb-radius);overflow-x:auto;font-size:var(--kb-text-sm);line-height:1.6}.post-content :not(pre)>code{background:var(--kb-bg-sunken);padding:.1em .35em;border-radius:4px}.post-content ruby rt{font-size:.55em;color:var(--kb-muted)}.post-content hr{border:0;border-top:1px solid var(--kb-border);margin:2em 0}.post-toc{display:none}@media(min-width:1000px){.post-toc{display:block}}.post-toc-inner{position:sticky;top:calc(var(--kb-nav-h) + var(--kb-space-5));max-height:calc(100dvh - var(--kb-nav-h) - 48px);overflow:auto;padding-left:var(--kb-space-4);border-left:1px solid var(--kb-border)}.kb2 .post-toc h2{font-size:var(--kb-text-sm);color:var(--kb-muted);margin-bottom:var(--kb-space-3)}.post-toc-list{list-style:none;margin:0;padding:0;font-size:var(--kb-text-sm)}.post-toc-list li{margin:0 0 var(--kb-space-2)}.post-toc-list li.lv3{padding-left:var(--kb-space-4)}.kb2 .post-toc-list a{color:var(--kb-muted);text-decoration:none;display:block;line-height:1.45}.kb2 .post-toc-list a:hover,.kb2 .post-toc-list a[aria-current=true]{color:var(--kb-accent-hover)}.post-toc-list a[aria-current=true]{font-weight:var(--kb-weight-medium)}.post-toc-fab{position:fixed;right:var(--kb-gutter);bottom:calc(var(--kb-tabbar-h) + env(safe-area-inset-bottom) + 16px);z-index:var(--kb-z-nav);display:inline-flex;align-items:center;gap:var(--kb-space-2);height:40px;padding:0 var(--kb-space-4);border:1px solid var(--kb-border);border-radius:var(--kb-radius-full);background:var(--kb-surface-raised);color:var(--kb-ink);font:inherit;font-size:var(--kb-text-sm);box-shadow:var(--kb-shadow-2);cursor:pointer}@media(min-width:1000px){.post-toc-fab{display:none}}.post-pdf,.post-file{margin-top:var(--kb-space-5);padding:var(--kb-space-4)}.post-file-head{display:flex;flex-wrap:wrap;align-items:center;gap:var(--kb-space-3)}.post-file-head>div{display:flex;flex-direction:column;min-width:0;flex:1;overflow-wrap:anywhere}.post-file-head .kb-muted{font-size:var(--kb-text-xs)}.post-pdf-frame{display:block;width:100%;height:min(75vh,720px);margin-top:var(--kb-space-4);border:1px solid var(--kb-border);border-radius:var(--kb-radius);background:var(--kb-bg-sunken)}.post-file-img,.post-file-media{display:block;max-width:100%;border-radius:var(--kb-radius);margin-bottom:var(--kb-space-3)}.post-file-audio{width:100%;margin-bottom:var(--kb-space-3)}.post-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:var(--kb-space-2);margin:var(--kb-space-7) 0 var(--kb-space-5)}.post-actions .kb-btn.is-on{border-color:var(--kb-accent);color:var(--kb-accent-hover);background:var(--kb-accent-soft)}.post-actions .kb-btn.is-on .kb-icon{fill:currentColor}.post-count{font-variant-numeric:tabular-nums}.post-count:empty{display:none}.post-author{display:flex;gap:var(--kb-space-4);align-items:center}.post-author>div{display:flex;flex-direction:column}.post-author .kb-muted{font-size:var(--kb-text-xs)}.post-author p{margin:var(--kb-space-1) 0 0;font-size:var(--kb-text-sm)}.post-comments{margin-top:var(--kb-space-7)}.kb2 .post-comments h2,.kb2 .post-related h2{font-size:var(--kb-text-xl)}.post-comment-form{display:flex;flex-direction:column;gap:var(--kb-space-2);margin:var(--kb-space-3) 0}.post-comment-form .kb-muted{font-size:var(--kb-text-xs)}.post-comment-list{margin-top:var(--kb-space-5)}.post-comment{display:flex;gap:var(--kb-space-3);padding:var(--kb-space-4) 0;border-top:1px solid var(--kb-border)}.post-comment.is-reply{margin-left:44px;padding-top:var(--kb-space-3);border-top-style:dashed}.post-comment-body{flex:1;min-width:0}.post-comment-body header{display:flex;flex-wrap:wrap;align-items:baseline;gap:var(--kb-space-2);font-size:var(--kb-text-sm)}.post-comment-body header b{color:var(--kb-ink-strong)}.post-comment-body time{font-size:var(--kb-text-xs)}.post-comment-body p{margin:var(--kb-space-1) 0 var(--kb-space-1);overflow-wrap:anywhere}.post-comment-actions{display:flex;gap:var(--kb-space-1);margin-left:calc(var(--kb-space-3) * -1)}.post-comment-actions [aria-pressed=true]{color:var(--kb-accent-hover)}.post-comment-actions [aria-pressed=true] .kb-icon{fill:currentColor}.post-comment-empty{padding:var(--kb-space-5) 0}.post-related{margin-top:var(--kb-space-7)}.post-related-grid{display:grid;gap:var(--kb-space-3);grid-template-columns:repeat(auto-fill,minmax(min(100%,200px),1fr))}.post-related-grid .kb-card{display:flex;flex-direction:column;gap:var(--kb-space-2);padding:var(--kb-space-4)}.kb2 .post-related-grid a.kb-card{color:inherit;text-decoration:none}.post-missing{margin:var(--kb-space-8) auto;max-width:480px}