:root{--qs-font: "Segoe UI", system-ui, -apple-system, sans-serif;--qs-text: #1b1b1b;--qs-muted: #616161;--qs-border: #e1e1e1;--qs-hover: #f3f2f1;--qs-accent: #0f6cbd;--qs-accent-soft: #eaf3fb;--qs-error: #a4262c;--qs-radius: 4px;--indent: 14px}*{box-sizing:border-box}body{margin:0;font-family:var(--qs-font);font-size:13px;color:var(--qs-text);background:#fff}.pane{display:flex;flex-direction:column;height:100vh}.pane-header{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-bottom:1px solid var(--qs-border)}.pane-title{font-size:14px;font-weight:600;margin:0}.pane-body{flex:1;overflow-y:auto;padding:6px 0 16px}#status{padding:6px 12px;min-height:18px;font-size:12px;color:var(--qs-muted)}#status.is-error{color:var(--qs-error)}.tree-row{display:flex;align-items:center;gap:6px;width:100%;padding:6px 12px 6px calc(12px + var(--level, 0) * var(--indent));border:0;background:none;font:inherit;color:inherit;text-align:left;cursor:pointer}.tree-row:hover{background:var(--qs-hover)}.tree-row:focus-visible{outline:2px solid var(--qs-accent);outline-offset:-2px}.tree-folder-row{font-weight:600}.tree-arrow,.tree-arrow-placeholder{width:12px;flex:0 0 12px;font-size:10px;color:var(--qs-muted)}.tree-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tree-file-row.is-selected{background:var(--qs-accent-soft);color:var(--qs-accent)}.tree-empty{padding:6px 12px 6px calc(12px + var(--level, 0) * var(--indent));color:var(--qs-muted);font-style:italic}.inline-slides{padding:8px 12px 12px calc(12px + var(--level, 0) * var(--indent));background:#fafafa;border-top:1px solid var(--qs-border);border-bottom:1px solid var(--qs-border)}.inline-slides-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}.inline-slides-title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.slides-actions{display:flex;gap:6px}.button{padding:5px 10px;border-radius:var(--qs-radius);border:1px solid var(--qs-border);background:#fff;font:inherit;cursor:pointer}.button:hover:not(:disabled){background:var(--qs-hover)}.button:disabled{opacity:.5;cursor:default}.button-primary{background:var(--qs-accent);border-color:var(--qs-accent);color:#fff}.button-primary:hover:not(:disabled){background:#0c5aa0}.inline-slides-helper,.inline-slides-message{color:var(--qs-muted);font-size:12px;margin-bottom:8px}.inline-slides-error{color:var(--qs-error);font-size:12px}.inline-slides-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}.slide-card{position:relative;display:flex;flex-direction:column;gap:4px;padding:4px;border:1px solid var(--qs-border);border-radius:var(--qs-radius);background:#fff;font:inherit;color:inherit;text-align:left;cursor:pointer}.slide-card:hover{border-color:var(--qs-accent)}.slide-card.is-selected{border-color:var(--qs-accent);box-shadow:inset 0 0 0 1px var(--qs-accent);background:var(--qs-accent-soft)}.slide-check{position:absolute;top:6px;right:6px;width:16px;height:16px;display:grid;place-items:center;border-radius:50%;background:var(--qs-accent);color:#fff;font-size:10px;opacity:0;transition:opacity .1s ease}.slide-card.is-selected .slide-check{opacity:1}.slide-thumb{aspect-ratio:16 / 9;display:grid;place-items:center;background:#f0f0f0;border-radius:2px;overflow:hidden;font-size:11px;color:var(--qs-muted)}.slide-thumb img{width:100%;height:100%;object-fit:contain;display:block}.slide-thumb.is-loading{background:linear-gradient(90deg,#f0f0f0 25%,#e6e6e6,#f0f0f0 75%);background-size:200% 100%;animation:qs-shimmer 1.2s infinite linear}.slide-thumb.is-failed{background:#f7f7f7}@keyframes qs-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (prefers-reduced-motion: reduce){.slide-thumb.is-loading{animation:none}}.slide-meta{font-size:11px;line-height:1.3;color:var(--qs-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}