/* 2026-10-20 新增：AI 助手、AI 设置、看板批注、上传文献。颜色沿用 styles.css 的变量。 */

/* ------------------------------------------------------------ AI 助手 */
.assistant-shell {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  height: calc(100vh - 56px);
}
.assistant-sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  padding: 16px;
  background: #eef2f4;
  border-right: 1px solid var(--line);
}
.assistant-conversation-list { display: grid; align-content: start; gap: 6px; overflow-y: auto; min-height: 0; flex: 1; }
.assistant-conversation {
  height: auto;
  padding: 8px 10px;
  text-align: left;
  background: transparent;
  display: grid;
  gap: 2px;
}
.assistant-conversation strong { font-size: 13px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.assistant-conversation small { color: var(--muted); font-size: 11px; }
.assistant-conversation.active { border-color: var(--accent); background: #dcecea; }
.assistant-sidebar-foot { display: grid; gap: 8px; }
.assistant-mcp { display: grid; gap: 3px; font-size: 12px; color: var(--muted); }
.assistant-mcp-row::before { content: "●"; margin-right: 5px; color: #9aa6af; }
.assistant-mcp-row.state-ready::before { color: #2e9d62; }
.assistant-mcp-row.state-failed::before { color: #c0392b; }
.assistant-mcp-row.state-starting::before { color: #d79b1d; }
.assistant-muted { color: var(--muted); font-size: 12px; }

.assistant-main { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; min-width: 0; min-height: 0; background: var(--bg); }
.assistant-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 20px; border-bottom: 1px solid var(--line); background: var(--panel);
}
.assistant-head h2 { margin: 0; font-size: 18px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.assistant-head-actions { display: flex; gap: 6px; flex-shrink: 0; }
.assistant-head-actions button { height: 30px; padding: 0 10px; }

.assistant-messages { overflow-y: auto; padding: 20px max(20px, calc((100% - 920px) / 2)); display: grid; align-content: start; gap: 14px; }
.assistant-msg { max-width: 100%; min-width: 0; }
.assistant-msg.user { justify-self: end; max-width: min(80%, 760px); display: grid; justify-items: end; gap: 4px; }
.assistant-msg.user .assistant-bubble {
  padding: 10px 14px; border-radius: 12px 12px 2px 12px; background: #1f7a70; color: #fff;
  white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.55;
}
.assistant-msg-context { font-size: 11px; color: var(--muted); }
.assistant-msg.assistant {
  padding: 12px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  display: grid; gap: 8px;
}
.assistant-msg.error { padding: 10px 14px; border: 1px solid #f0b7b0; background: #fdecea; color: #8c2a1f; border-radius: 8px; }
.assistant-msg.notice { justify-self: center; font-size: 12px; color: var(--muted); }
.assistant-typing { color: var(--muted); letter-spacing: 3px; }
.assistant-thinking { font-size: 12px; color: var(--muted); }
.assistant-thinking > div { white-space: pre-wrap; max-height: 240px; overflow-y: auto; padding: 6px 0; }

.assistant-markdown { line-height: 1.7; font-size: 14.5px; overflow-wrap: anywhere; }
.assistant-markdown > :first-child { margin-top: 0; }
.assistant-markdown > :last-child { margin-bottom: 0; }
.assistant-markdown h3, .assistant-markdown h4, .assistant-markdown h5 { margin: 14px 0 6px; line-height: 1.35; }
.assistant-markdown h3 { font-size: 17px; } .assistant-markdown h4 { font-size: 15.5px; } .assistant-markdown h5 { font-size: 14.5px; }
.assistant-markdown p { margin: 6px 0; }
.assistant-markdown ul, .assistant-markdown ol { margin: 6px 0; padding-left: 22px; }
.assistant-markdown blockquote { margin: 8px 0; padding: 2px 12px; border-left: 3px solid #b7d5d1; color: #3f4c55; background: #f4f9f8; }
.assistant-markdown code { padding: 1px 5px; border-radius: 4px; background: #eef2f4; font: 13px ui-monospace, SFMono-Regular, Menlo, monospace; }
.assistant-markdown pre { position: relative; margin: 8px 0; padding: 10px 12px; overflow-x: auto; border-radius: 6px; background: #10171c; color: #d7e1e6; }
.assistant-markdown pre code { padding: 0; background: none; color: inherit; font-size: 12.5px; white-space: pre; }
.assistant-copy { position: absolute; top: 6px; right: 6px; height: 24px; padding: 0 8px; font-size: 11px; opacity: 0.8; }
.assistant-markdown .md-table { overflow-x: auto; margin: 8px 0; }
.assistant-markdown table { border-collapse: collapse; font-size: 13px; }
.assistant-markdown th, .assistant-markdown td { padding: 5px 9px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.assistant-markdown th { background: #eef2f4; }
.assistant-markdown hr { border: 0; border-top: 1px solid var(--line); margin: 12px 0; }
.assistant-markdown .md-math-display { display: block; overflow-x: auto; margin: 8px 0; }

.assistant-tool { border: 1px solid #dce3e7; border-radius: 6px; background: #f8fafb; font-size: 12.5px; }
.assistant-tool > summary { display: flex; align-items: center; gap: 8px; padding: 6px 10px; cursor: pointer; list-style: none; }
.assistant-tool > summary::-webkit-details-marker { display: none; }
.assistant-tool > summary::before { content: "▸"; color: var(--muted); }
.assistant-tool[open] > summary::before { content: "▾"; }
.assistant-tool-name { font-weight: 600; }
.assistant-tool > summary code { color: var(--muted); font-size: 11px; }
.assistant-tool-badge { margin-left: auto; padding: 1px 8px; border-radius: 999px; background: #e3e9ed; color: #4b5964; font-size: 11px; white-space: nowrap; }
.assistant-tool.status-running .assistant-tool-badge { background: #fff2d6; color: #8a5a00; }
.assistant-tool.status-done .assistant-tool-badge { background: #dcf1e5; color: #1d6b42; }
.assistant-tool.status-error .assistant-tool-badge, .assistant-tool.status-rejected .assistant-tool-badge { background: #fbe1de; color: #8c2a1f; }
.assistant-tool.status-approval { border-color: #e2b04a; background: #fffaf0; }
.assistant-tool.status-approval .assistant-tool-badge { background: #e2b04a; color: #fff; }
.assistant-tool-args, .assistant-tool-result {
  margin: 0 10px 8px; padding: 8px; max-height: 260px; overflow: auto; border-radius: 4px;
  background: #fff; border: 1px solid #e3e9ed; white-space: pre-wrap; overflow-wrap: anywhere; font: 11.5px/1.45 ui-monospace, Menlo, monospace;
}
.assistant-tool-result { background: #fbfcfd; }
.assistant-approval { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 10px 8px; }
.assistant-approval p { flex-basis: 100%; margin: 0; color: #6b4a00; }
.assistant-tool-images { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.assistant-tool-images img { display: block; max-width: min(100%, 560px); max-height: 420px; border: 1px solid var(--line); border-radius: 4px; background: #fff; }
.assistant-open-dashboard { height: 28px; margin-top: 6px; font-size: 12px; }

.md-schematic { margin: 10px 0; padding: 10px; border: 1px solid #cfe0dc; border-radius: 8px; background: #fbfdfc; }
.assistant-schematic-figure { overflow-x: auto; }
.assistant-schematic-figure > svg { display: block; max-width: 100%; height: auto; }
.assistant-schematic-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.assistant-schematic-actions button { height: 30px; font-size: 12.5px; }
.assistant-schematic-check { margin: 8px 0 0; padding-left: 18px; font-size: 12px; color: var(--muted); }
.assistant-schematic-check .error, .assistant-schematic-error { color: #8c2a1f; }
.md-schematic details pre { max-height: 300px; overflow: auto; font-size: 12px; }

/* 研究进展 / 试验设置：AI 的修改提议卡片 */
.md-context-proposal { margin: 10px 0; padding: 10px 12px; border: 1px solid #d9cfa8; border-radius: 8px; background: #fffdf5; }
.md-context-proposal.md-context-cut { color: var(--muted); }
.assistant-proposal-head { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; margin-bottom: 6px; }
.assistant-proposal-target { color: var(--muted); font-size: 12.5px; }
.assistant-proposal-body { padding: 6px 10px; border-left: 3px solid #e0c96b; background: #fff; }
.assistant-proposal-old { margin-top: 8px; font-size: 12.5px; }
.assistant-proposal-old > .assistant-markdown { max-height: 320px; overflow: auto; padding: 6px 10px; border-left: 3px solid #c9d2d8; color: var(--muted); }
.assistant-proposal-note { color: var(--muted); font-size: 12px; align-self: center; }
/* 文献笔记卡片（网页 AI 写、点“保存到文献库”才写入） */
.md-note-proposal { margin: 10px 0; padding: 10px 12px; border: 1px solid #c8d6e5; border-radius: 8px; background: #f7fafd; }
.assistant-note-figures { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0; }
.assistant-note-figure { margin: 0; width: 180px; padding: 4px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.assistant-note-figure img { display: block; width: 100%; max-height: 140px; object-fit: contain; }
.assistant-note-figure figcaption { margin-top: 4px; font-size: 11.5px; color: var(--muted); overflow-wrap: anywhere; }
.assistant-note-figure.status-missing { border-style: dashed; border-color: #d9a3a3; }
.assistant-note-figure.status-missing figcaption { color: #8c2a1f; }

.assistant-welcome { display: grid; gap: 8px; max-width: 720px; justify-self: center; margin-top: 24px; }
.assistant-welcome h3 { margin: 0 0 4px; font-size: 16px; }
.assistant-welcome button { height: auto; padding: 10px 12px; text-align: left; line-height: 1.5; }

.assistant-composer { display: grid; gap: 8px; padding: 12px max(20px, calc((100% - 920px) / 2)) 16px; border-top: 1px solid var(--line); background: var(--panel); }
.assistant-context { display: flex; flex-wrap: wrap; gap: 6px; min-height: 26px; align-items: center; }
.assistant-chip {
  display: inline-flex; align-items: center; gap: 4px; height: 26px; padding: 0 10px;
  border: 1px dashed #b9c4cb; border-radius: 999px; background: #fff; color: var(--muted); font-size: 12px;
  max-width: 340px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.assistant-chip.active { border-style: solid; border-color: var(--accent); background: #e8f3f1; color: var(--accent-dark); }
.assistant-chip.image button { height: 20px; width: 20px; padding: 0; border: 0; background: transparent; color: inherit; font-size: 14px; }
#assistantInput {
  width: 100%; min-height: 64px; max-height: 260px; resize: vertical; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 8px; font: inherit; line-height: 1.5;
}
#assistantInput:focus { outline: 2px solid #9fd0c9; border-color: var(--accent); }
.assistant-composer-actions { display: flex; align-items: center; gap: 8px; }
.assistant-status { margin-right: auto; color: var(--muted); font-size: 12.5px; }

/* ------------------------------------------------------------ 试验与进展面板 */
.context-dialog { width: min(980px, calc(100vw - 24px)); height: min(900px, calc(100vh - 24px)); }
.context-dialog[open] { display: grid; grid-template-rows: auto auto auto minmax(0, 1fr) auto; gap: 8px; padding: 14px 16px; }
.context-dialog .hint { margin: 0; }
.context-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.context-tabs { display: inline-flex; flex-wrap: wrap; gap: 4px; }
.context-tabs button.active { border-color: var(--accent); background: #e8f3f1; color: var(--accent-dark); }
.context-tabs button { max-width: 260px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.assistant-study-row { display: flex; align-items: center; gap: 8px; min-width: 0; font-size: 12.5px; }
.assistant-study-row label { flex: none; white-space: nowrap; color: var(--muted); }
.assistant-study-row select { flex: none; height: 28px; max-width: 320px; padding: 0 6px; border: 1px solid var(--line); border-radius: 6px; background: #fff; font: inherit; }
.assistant-study-row select.chosen { border-color: var(--accent); background: #e8f3f1; color: var(--accent-dark); }
.assistant-study-status { min-width: 0; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: var(--muted); }
.assistant-proposal-target.missing { color: #8c2a1f; }
.context-info { color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.context-view { overflow: auto; padding: 4px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.context-editor { width: 100%; height: 100%; min-height: 240px; resize: none; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 8px; font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace; }
.context-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.context-actions input { flex: 1 1 240px; min-width: 0; height: 32px; padding: 0 10px; border: 1px solid var(--line); border-radius: 6px; }

/* ------------------------------------------------------------ AI 设置 */
.ai-settings-dialog { width: min(860px, calc(100vw - 24px)); }
.ai-settings-form { max-height: calc(100vh - 24px); overflow-y: auto; padding: 16px; display: grid; gap: 12px; }
.ai-settings-form fieldset { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin: 0; }
.ai-settings-form fieldset[hidden] { display: none; }
.ai-settings-form legend { padding: 0 6px; font-weight: 600; }
.ai-settings-form .hint { margin: 4px 0 8px; color: var(--muted); font-size: 12.5px; line-height: 1.5; }
.ai-provider-choices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.ai-provider-choices label { display: grid; gap: 2px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; cursor: pointer; }
.ai-provider-choices label:has(input:checked) { border-color: var(--accent); background: #e8f3f1; }
.ai-provider-choices small { color: var(--muted); font-size: 11.5px; }
.ai-presets { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-bottom: 8px; font-size: 12px; color: var(--muted); }
.ai-presets button { height: 26px; padding: 0 8px; font-size: 12px; }
.ai-check { display: flex !important; align-items: center; gap: 6px; }
.ai-tools-head { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
.ai-tools-head button { height: 28px; font-size: 12px; }
.ai-tool-policy { display: grid; gap: 4px; max-height: 280px; overflow-y: auto; }
.ai-tool-row { display: grid; grid-template-columns: 1fr 1.2fr 96px; align-items: center; gap: 8px; font-size: 12.5px; }
.ai-tool-row code { color: var(--muted); font-size: 11px; overflow: hidden; text-overflow: ellipsis; }
.ai-mcp-status { display: grid; gap: 3px; font-size: 12px; }
.ai-mcp-row.state-failed { color: #8c2a1f; }
.ai-mcp-row.state-ready { color: #1d6b42; }
.ai-advanced > summary { cursor: pointer; font-weight: 600; }
@media (max-width: 720px) { .ai-provider-choices { grid-template-columns: 1fr; } .assistant-shell { grid-template-columns: 1fr; } .assistant-sidebar { display: none; } }

/* ------------------------------------------------------------ 看板批注 */
.annot-frame { position: relative; line-height: 0; }
.annot-thumb { display: block; }
.annot-overlay { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.annot-thumb[data-count]::after {
  content: "批注 " attr(data-count); position: absolute; top: 8px; right: 8px; padding: 2px 7px; border-radius: 999px;
  background: rgba(228, 87, 46, 0.92); color: #fff; font-size: 11px; line-height: 1.5; pointer-events: none;
}
.annot-shape.selected { filter: drop-shadow(0 0 3px rgba(37, 99, 235, 0.9)); }

.zoom-dialog[open] { display: grid; grid-template-rows: 52px auto minmax(0, 1fr); }
.annotation-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 6px 12px; border-bottom: 1px solid var(--line); background: #f6f8f9; }
.annotation-toolbar:empty { display: none; }
.annotation-toolbar button { height: 30px; padding: 0 9px; font-size: 12.5px; }
.annot-tools { display: inline-flex; gap: 0; }
.annot-tools button { border-radius: 0; margin-left: -1px; }
.annot-tools button:first-child { border-radius: 6px 0 0 6px; }
.annot-tools button:last-child { border-radius: 0 6px 6px 0; }
.annot-tools button.active { background: var(--accent); border-color: var(--accent); color: #fff; position: relative; }
.annotation-toolbar input[type="color"] { width: 34px; height: 30px; padding: 2px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.annotation-toolbar select { height: 30px; }
#annotationNote { height: 30px; min-width: 180px; flex: 1; padding: 0 8px; border: 1px solid var(--line); border-radius: 6px; }
.annot-status { font-size: 12px; color: var(--muted); }
.annot-status.error { color: #8c2a1f; }
.zoom-body { display: grid; grid-template-columns: minmax(0, 1fr) 250px; min-height: 0; }
.zoom-stage { display: flex; align-items: center; justify-content: center; min-width: 0; min-height: 0; overflow: auto; background: #fff; }
.zoom-stage .annot-frame { display: inline-block; flex: none; }
.zoom-dialog #zoomImage { display: block; width: auto; height: auto; max-width: none; object-fit: fill; background: #fff; }
.annot-editable.annot-drawing { cursor: crosshair; }
.annotation-list { overflow-y: auto; padding: 10px 12px; border-left: 1px solid var(--line); background: #f8fafb; font-size: 12.5px; }
.annotation-list h4 { margin: 0 0 8px; font-size: 14px; }
.annot-card { display: grid; gap: 4px; padding: 8px; margin-bottom: 8px; border: 1px solid var(--line); border-left: 3px solid #e4572e; border-radius: 6px; background: #fff; }
.annot-card.ai { border-left-color: #2563eb; }
.annot-card p { margin: 0; line-height: 1.5; }
.annot-card button { justify-self: start; height: 26px; font-size: 12px; }
.annot-meta { color: var(--muted); font-size: 11.5px; }
.annot-muted { color: var(--muted); }
.annot-draft { color: #8a5a00; }
.annot-note-section { padding-bottom: 10px; margin-bottom: 10px; border-bottom: 1px solid var(--line); }
.annot-note-input { width: 100%; box-sizing: border-box; min-height: 180px; max-height: 50vh; resize: vertical; font: inherit; line-height: 1.5; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: #fff; }
.annot-note-actions { display: flex; align-items: center; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.annot-note-actions button { height: 26px; font-size: 12px; }
.annot-note-text { margin: 0; line-height: 1.55; white-space: pre-wrap; }
body.readonly .zoom-body { grid-template-columns: minmax(0, 1fr) 220px; }
@media (max-width: 820px) { .zoom-body { grid-template-columns: 1fr; } .annotation-list { display: none; } }

/* ------------------------------------------------------------ 上传文献 */
.literature-import-dialog { width: min(900px, calc(100vw - 24px)); height: min(860px, calc(100vh - 24px)); }
.literature-import-dialog[open] { display: grid; grid-template-rows: auto minmax(0, 1fr); }
.literature-import-head { padding: 12px 16px; border-bottom: 1px solid var(--line); }
.literature-import-body { display: grid; align-content: start; gap: 12px; padding: 16px; overflow-y: auto; }
.literature-drop-zone {
  display: grid; gap: 6px; justify-items: center; padding: 22px; border: 2px dashed #b7c7cf; border-radius: 10px;
  background: #f7fafb; text-align: center; cursor: pointer; color: var(--muted); font-size: 13px;
}
.literature-drop-zone strong { color: var(--text); font-size: 15px; }
.literature-drop-zone.over { border-color: var(--accent); background: #e8f3f1; }
.literature-drop-zone.busy { opacity: 0.6; pointer-events: none; }
.literature-import-index { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 12.5px; color: var(--muted); }
.literature-import-index button { height: 28px; font-size: 12px; }
.literature-imports { display: grid; gap: 10px; }
.literature-imports h4 { margin: 8px 0 0; font-size: 13px; color: var(--muted); }
.literature-import-card { display: grid; gap: 6px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff; font-size: 13px; }
.literature-import-card p { margin: 0; line-height: 1.5; }
.literature-import-card.status-imported, .literature-import-card.status-discarded { opacity: 0.75; }
.literature-import-card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.literature-import-card-head strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.literature-import-badge { flex-shrink: 0; padding: 1px 8px; border-radius: 999px; background: #e3e9ed; font-size: 11.5px; }
.status-ready .literature-import-badge { background: #fff2d6; color: #8a5a00; }
.status-imported .literature-import-badge { background: #dcf1e5; color: #1d6b42; }
.status-failed .literature-import-badge, .status-needs_ocr .literature-import-badge { background: #fbe1de; color: #8c2a1f; }
.literature-import-warning { color: #8c2a1f; }
.literature-import-name { display: grid; gap: 4px; font-size: 12px; color: var(--muted); }
.literature-import-name input, .literature-import-new input { height: 32px; padding: 0 8px; border: 1px solid var(--line); border-radius: 6px; font-size: 13px; color: var(--text); }
.literature-import-categories { display: flex; flex-wrap: wrap; gap: 6px 14px; align-items: center; font-size: 12.5px; }
.literature-import-categories label { display: inline-flex; align-items: center; gap: 4px; }
.literature-import-new { gap: 6px !important; color: var(--muted); }
.literature-import-actions { display: flex; gap: 6px; }
.literature-import-actions button { height: 30px; }

/* 全局 input/label 样式（styles.css）在这些新控件里要还原成紧凑样式 */
.ai-settings-form input[type="checkbox"], .ai-settings-form input[type="radio"],
.literature-import-categories input[type="checkbox"] { width: auto; height: auto; margin: 0; padding: 0; }
.ai-provider-choices label { color: var(--text); font-size: 13px; }
.ai-provider-choices label > input { justify-self: start; }
.ai-check { grid-template-columns: auto 1fr; align-self: end; color: var(--text) !important; font-size: 13px !important; padding-bottom: 8px; }
.literature-import-categories label { display: inline-flex; grid-template-columns: none; color: var(--text); font-size: 12.5px; white-space: nowrap; }
.literature-import-new { display: inline-flex !important; align-items: center; white-space: nowrap; }
.literature-import-new input { width: 180px; }
.annotation-toolbar select { width: auto; height: 30px; padding: 0 6px; }
.annotation-toolbar input[type="text"] { width: auto; }
.assistant-composer textarea { width: 100%; }

/* ------------------------------------------------------------ 图片下方：metadata 与文字批注同一行；撤销删除 */
.image-card .card-footer { display: flex; align-items: flex-start; gap: 10px; padding: 0 12px 12px; }
.image-card .card-footer details { flex: 1 1 0; min-width: 0; padding: 0; color: var(--muted); font-size: 12px; }
.image-card .card-footer summary { cursor: pointer; padding: 6px 0; }
.image-card .card-footer pre { max-height: 260px; overflow: auto; }
.card-note-text { white-space: pre-wrap; overflow-wrap: anywhere; color: var(--text); font-size: 13px; line-height: 1.5; }
.card-note-text:empty { display: none; }
body:not(.readonly) .card-note-text { display: none; }
.card-note-editor textarea { width: 100%; min-height: 64px; resize: vertical; font-size: 13px; line-height: 1.5; color: var(--text); }
.card-note-actions { display: flex; align-items: center; gap: 6px; margin-top: 6px; }
.card-note-actions button { height: 28px; padding: 0 9px; font-size: 12px; }
.card-note-status { font-size: 11.5px; color: var(--muted); }
.card-note[open] > summary { color: var(--accent-dark); font-weight: 600; }

.undo-toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50;
  display: flex; align-items: center; gap: 10px; padding: 10px 12px 10px 16px;
  border-radius: 10px; background: #1e2a32; color: #fff; box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25); font-size: 14px;
}
.undo-toast[hidden] { display: none; }
.undo-toast .icon-button { height: 30px; width: 30px; background: transparent; color: #cfd8dd; border-color: transparent; font-size: 16px; }
.undo-toast .primary { height: 30px; }
.trash-dialog { width: min(720px, calc(100vw - 24px)); }
.trash-head { padding: 12px 16px; border-bottom: 1px solid var(--line); }
.trash-hint { padding: 0 16px; }
.trash-list { display: grid; gap: 8px; padding: 12px 16px 16px; max-height: 70vh; overflow-y: auto; color: var(--muted); font-size: 13px; }
.trash-item { display: grid; grid-template-columns: 96px minmax(0, 1fr) auto; align-items: center; gap: 12px; padding: 8px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.trash-item img { width: 96px; height: 64px; object-fit: contain; background: #fff; border: 1px solid #eef2f4; }
.trash-item strong { display: block; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trash-item small { color: var(--muted); }

/* ------------------------------------------------------------ 折叠 AI 的思考过程（“隐藏过程”） */
.assistant-process-summary {
  justify-self: start; height: auto; padding: 5px 12px; border: 1px dashed #c3cdd3; border-radius: 999px;
  background: #fff; color: var(--muted); font-size: 12.5px;
}
.assistant-process-summary:hover { border-color: var(--accent); color: var(--accent-dark); }
/* 折叠时：中间步骤的文字、思考和工具卡都收起来；出的图和需要你确认的工具仍然显示 */
.assistant-msg.process-step.collapsed { padding: 0; border: 0; background: none; gap: 6px; }
.assistant-msg.process-step.collapsed > .assistant-markdown,
.assistant-msg.process-step.collapsed > .assistant-thinking,
.assistant-msg.process-step.collapsed > .assistant-typing,
.assistant-msg.process-step.collapsed details.assistant-tool:not(.status-approval) { display: none; }
.assistant-msg.process-step.collapsed .assistant-tool-images img { max-height: 260px; }
.assistant-messages.hide-process .assistant-msg.assistant:not(.process-step) > .assistant-thinking { display: none; }
.assistant-msg.process-step.collapsed:not(:has(.assistant-tool-images, .assistant-tool.status-approval)) { display: none; }

/* 文献列表收起时（只剩 50 px 宽），“展开”和“上传”两个按钮竖着排 */
#literatureUpload { white-space: nowrap; }
.literature-list-collapsed .literature-list-controls { flex-direction: column; align-items: center; gap: 6px; }
.literature-list-collapsed #literatureToggle { order: -1; }
.literature-list-collapsed #literatureUpload { width: 40px; padding: 0; }

.assistant-empty { color: #8a5a00; font-size: 13px; }
.md-schematic.md-schematic-cut { color: #8a5a00; font-size: 13px; }