/* ==================================================================
   mindmap5.3 · ai-panel.css —— AI 辅助栏，复用 trial-05 深浅主题令牌
   ================================================================== */
#ai-panel, #ai-panel * { box-sizing: border-box; }
#ai-panel[hidden] { display: none; }
#ai-panel {
  position: fixed; inset: var(--menubar-h) 0 0 auto; width: min(var(--ai-panel-width), 100vw);
  z-index: var(--z-ai-panel); display: flex; flex-direction: column;
  background: var(--ui-panel); color: var(--ui-text); border-left: 1px solid var(--ui-border);
  box-shadow: var(--ui-shadow); font: 15px/1.7 var(--font-ui); isolation: isolate;
}
#ai-panel button, #ai-panel input, #ai-panel textarea, #ai-panel select { font: inherit; }
#ai-panel h3 { margin: 4px 0 12px; font-size: 17px; line-height: 1.5; }
#ai-panel p { margin: 8px 0; }
.ai-header { display: flex; gap: 6px; align-items: center; padding: 10px var(--ai-panel-gutter); flex-shrink: 0; border-bottom: 1px solid var(--ui-border); }
.ai-header > div { flex: 1; min-width: 0; }
.ai-header strong { display: block; font-size: 17px; white-space: nowrap; }
#ai-panel .ai-header .ai-button { padding: 4px 8px; font-size: 12px; white-space: nowrap; }
#ai-panel .ai-button { display: inline-flex; align-items: center; justify-content: center; gap: 5px; min-height: 34px; padding: 5px 10px; border: 1px solid var(--ui-border); border-radius: var(--radius-btn); color: var(--ui-text); background: var(--ui-panel); cursor: pointer; }
#ai-panel .ai-button:hover:not(:disabled) { background: var(--ui-accent-soft); color: var(--ui-accent); }
#ai-panel .ai-button:disabled { opacity: .5; cursor: not-allowed; }
#ai-panel :focus-visible { outline: 2px solid var(--ui-accent); outline-offset: 2px; }
#ai-panel .ai-primary { background: var(--ui-accent); color: var(--ui-primary-text); border-color: var(--ui-accent); }
#ai-panel .ai-primary:hover:not(:disabled) { background: var(--ui-accent); color: var(--ui-primary-text); filter: brightness(1.08); }
#ai-panel .mm-icon { width: 18px; height: 18px; flex-shrink: 0; }
.ai-tabs { display: flex; flex-shrink: 0; padding: 0 12px; border-bottom: 1px solid var(--ui-border); }
#ai-panel .ai-tabs button { border: 0; border-bottom: 2px solid transparent; border-radius: 0; flex: 1; padding: 6px; }
#ai-panel .ai-tabs button[aria-selected="true"] { color: var(--ui-accent); border-bottom-color: var(--ui-accent); font-weight: 600; }
.ai-context { padding: 6px var(--ai-panel-gutter); background: var(--ui-panel); flex-shrink: 0; }
.ai-context-summary { display: flex; align-items: center; gap: 8px; cursor: pointer; list-style: none; min-height: 44px; }
.ai-context-summary::-webkit-details-marker { display: none; }
.ai-context-caption { flex: 1; min-width: 0; }
.ai-context-caption > span { display: block; }
.ai-context-label { font-weight: 400; color: var(--ui-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ai-context-expand { flex-shrink: 0; font-size: 12px; color: var(--ui-accent); }
.ai-context-expand { display: flex; color: var(--ui-muted); }
.ai-context-details[open] > summary .ai-context-expand .mm-icon { transform: rotate(90deg); }
.ai-context-details[open] .ai-context-label { white-space: normal; overflow-wrap: anywhere; }

.ai-content { flex: 1; min-height: 0; padding: 8px var(--ai-panel-gutter) 20px; overflow: auto; overscroll-behavior: contain; overflow-wrap: anywhere; }
.ai-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 10px; }
.ai-small { color: var(--ui-muted); font-size: 12px; line-height: 1.6; }
.ai-muted { color: var(--ui-muted); }
.ai-empty { padding: 12px 0; }
#ai-panel .ai-prompt { display: block; width: 100%; text-align: left; margin: 10px 0; padding: 12px; }
.ai-message { margin: 0 0 24px; padding: 0; }
.ai-message-user { background: var(--ui-bg); border: 1px solid var(--ui-border); border-radius: var(--ai-chat-radius); padding: 14px 16px; }
.ai-message-user > .ai-message-label { display: none; }
.ai-message-assistant > .ai-message-label { font-size: 12px; }
.ai-message-label { color: var(--ui-muted); font-size: 12px; margin-bottom: 8px; }
.ai-answer-text { white-space: pre-wrap; overflow-wrap: anywhere; }
#ai-panel .ai-cite { min-height: 24px; margin: 0 2px; padding: 0 4px; border-color: transparent; color: var(--ui-accent); background: var(--ui-accent-soft); vertical-align: baseline; font-size: 12px; }
#ai-panel .ai-source-chip { justify-content: flex-start; max-width: 100%; text-align: left; color: var(--ui-accent); font-size: 12px; margin: 5px 3px 5px 0; overflow-wrap: anywhere; }
.ai-message > .ai-secondary { margin-top: 10px; }
.ai-composer { position: relative; padding: 8px var(--ai-panel-gutter) calc(10px + var(--safe-area-bottom)); background: var(--ui-panel); flex-shrink: 0; }
.ai-composer .ai-row { justify-content: space-between; }
.ai-compose-actions { display: flex; gap: 8px; flex-shrink: 0; }
#ai-panel textarea, #ai-panel input, #ai-panel select { width: 100%; min-width: 0; padding: 10px; color: var(--ui-text); background: var(--ui-panel); border: 1px solid var(--ui-border); border-radius: var(--radius-btn); }
#ai-panel textarea { resize: vertical; min-height: 80px; max-height: 200px; }
#ai-panel textarea::placeholder, #ai-panel input::placeholder { color: var(--ui-muted); }
#ai-panel .ai-draft-answer { min-height: 190px; max-height: 360px; }
.ai-field { display: block; margin: 12px 0; }
.ai-field > span { display: block; font-weight: 600; margin-bottom: 6px; }
.ai-remember-token { display: flex; align-items: center; gap: 8px; min-height: 44px; cursor: pointer; }
#ai-panel .ai-remember-token input { width: 18px; height: 18px; margin: 0; padding: 0; flex-shrink: 0; accent-color: var(--ui-accent); }
.ai-badge { padding: 2px 7px; background: var(--ui-bg); border: 1px solid var(--ui-border); border-radius: var(--radius-btn); font-size: 12px; }
.ai-source-quote { margin: 16px 0; padding: 14px; border-left: 3px solid var(--ui-accent); background: var(--ui-accent-soft); white-space: pre-wrap; max-height: 40vh; overflow: auto; }
.ai-metadata { margin: 16px 0; }
.ai-metadata summary { cursor: pointer; }
.ai-warning { color: var(--ui-danger); padding: 10px; border: 1px solid var(--ui-border); border-radius: var(--radius-btn); }
.ai-context-length-warning { font-weight: 700; border: 2px solid currentColor; }
.ai-notice { padding: 10px; border-left: 3px solid var(--ui-accent); background: var(--ui-accent-soft); }
.ai-task-phase { font-size: 18px; color: var(--ui-accent); }
#ai-toggle.is-active { color: var(--ui-accent); background: var(--ui-accent-soft); }
/* 仅宽桌面预留空间，不更改 Reader 显示模式或保存的宽度比例。 */
@media (min-width: 1400px) {
  body.ai-panel-docked #reader-panel { right: var(--ai-panel-width); }
  body.ai-panel-docked.reader-mode-reader-only #reader-panel { width: calc(100vw - var(--ai-panel-width)); }
  body.ai-panel-docked.reader-mode-split #reader-panel { width: min(var(--reader-width), calc(100vw - var(--ai-panel-width) - 300px)); min-width: 420px; }
}
@media (max-width: 899px) {
  #ai-panel { inset: 0; width: 100%; height: 100dvh; border: 0; z-index: var(--z-ai-mobile); }
  .ai-header { padding-top: max(8px, env(safe-area-inset-top)); }
  #ai-panel .ai-button { min-height: 44px; }
  #ai-panel .ai-cite { min-width: 44px; min-height: 36px; }
  .ai-context { padding: 6px 12px; }
  .ai-content { padding: 12px; }
  .ai-composer { padding: 10px 12px calc(8px + var(--safe-area-bottom)); }
  .ai-composer textarea { min-height: 66px; max-height: 140px; }
  #ai-toggle { display: inline-flex !important; min-width: 44px; align-items: center; justify-content: center; }
}
@media (prefers-reduced-motion: reduce) { #ai-panel * { scroll-behavior: auto; } }

/* 脑图普通笔记中的稳定引用保留链接语义，不伪装成节点操作按钮。 */
.ic-note a[data-ai-citation], .ic-note a[href^="#ai-source-"], .frag--text a[data-ai-citation], .frag--text a[href^="#ai-source-"], .frag--link a[data-ai-citation], .frag--link a[href^="#ai-source-"] { color: var(--ui-accent); text-decoration: underline; text-underline-offset: 2px; white-space: nowrap; }

/* 对话管理与提示词库：模板只填入输入框，保持原有发送步骤。 */
.ai-template { padding: 12px; margin: 12px 0; border: 1px solid var(--ui-border); border-radius: var(--radius-btn); background: var(--ui-bg); }
.ai-template > p { white-space: pre-wrap; overflow-wrap: anywhere; }
#ai-panel .ai-template-text { min-height: 180px; max-height: 360px; }

.ai-context { max-height: 35vh; overflow: auto; overscroll-behavior: contain; }

/* 当前材料直接显示原文快照；长文完整列表进入内容区，不挤占输入框。 */
.ai-context-preview { margin-top: 10px; padding-top: 8px; border-top: 1px solid var(--ui-border); }
.ai-context-preview summary { color: var(--ui-text); cursor: pointer; font-size: 12px; font-weight: 600; }
.ai-context-preview-list { max-height: 112px; margin-top: 8px; overflow: auto; overscroll-behavior: contain; }
.ai-context-preview-item + .ai-context-preview-item { margin-top: 10px; }
.ai-context-preview-quote { padding-left: 9px; border-left: 2px solid var(--ui-accent); font-size: 12px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; }
#ai-panel .ai-materials-open { margin-top: 8px; min-height: 30px; font-size: 12px; }
.ai-material-card { margin: 16px 0; padding-bottom: 12px; border-bottom: 1px solid var(--ui-border); }
.ai-material-card h4 { margin: 0 0 8px; font-size: 14px; }
.ai-material-quote { padding: 10px; background: var(--ui-bg); border-radius: var(--radius-btn); white-space: pre-wrap; overflow-wrap: anywhere; }
@media (max-width: 899px) {
  .ai-context-preview-list { max-height: 88px; }
  #ai-panel .ai-materials-open { min-height: 36px; }
}

/* 明确选择下一次任务；生成计划保持独立审核与原文依据。 */
.ai-compose-tools { display: flex; align-items: center; gap: 6px; padding: 6px 8px 8px; }
#ai-panel .ai-prompts-toggle { font-size: 12px; border-color: transparent; color: var(--ui-accent); }
#ai-panel .ai-map-task[aria-pressed="true"] { background: var(--ui-accent-soft); color: var(--ui-accent); border-color: var(--ui-accent); }
.ai-plan-node { margin: 14px 0 14px calc(var(--ai-plan-depth, 0) * 10px); padding: 12px; border: 1px solid var(--ui-border); border-left: 3px solid var(--ui-accent); border-radius: var(--radius-btn); }
.ai-plan-level { font-size: 12px; color: var(--ui-accent); overflow-wrap: anywhere; }
#ai-panel .ai-plan-body { min-height: 86px; max-height: 220px; }
.ai-plan-evidence { margin: 8px 0; padding: 9px; background: var(--ui-bg); border-radius: var(--radius-btn); }
.ai-plan-evidence blockquote { margin: 0; white-space: pre-wrap; font-size: 13px; overflow-wrap: anywhere; max-height: 180px; overflow: auto; }
.ai-range-note { color: var(--ui-muted); font-size: 12px; border-left: 2px solid var(--ui-accent); padding-left: 8px; }
.ai-source-range-text { white-space: pre-wrap; max-height: 180px; overflow: auto; }
@media (max-width: 899px) {
  .ai-plan-node { margin-left: calc(var(--ai-plan-depth, 0) * 6px); padding: 9px; }
}

/* 旧生成稿先显示整理前后文本，只有确认后才修改正式节点。 */
.ai-cleanup-change { margin: 14px 0; padding: 12px; border: 1px solid var(--ui-border); border-radius: var(--radius-btn); }
.ai-cleanup-change h4 { margin: 0 0 10px; }
.ai-cleanup-change details { margin-bottom: 12px; }
.ai-cleanup-text { margin-top: 8px; max-height: 220px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 13px; line-height: 1.6; }

/* 会话保存状态独立于消息区，输入或草稿落盘不重建编辑控件。 */
.ai-session-status { flex-shrink:0; padding:0 var(--ai-panel-gutter) 6px; max-height:25vh; overflow:auto; }
.ai-session-status[hidden] { display:none; }
.ai-session-heading { display:flex; align-items:center; gap:8px; }
.ai-session-heading strong { flex:1; min-width:0; font-size:13px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.ai-save-status { color:var(--ui-muted); font-size:12px; white-space:nowrap; }
.ai-draft-resume { display:flex; align-items:center; justify-content:space-between; gap:8px; padding:10px; background:var(--ui-accent-soft); border-radius:var(--radius-btn); margin-bottom:12px; }
.ai-draft-resume strong { color:var(--ui-accent); font-size:13px; }
#ai-panel .ai-message-branch { border:0; color:var(--ui-muted); font-size:12px; padding-left:0; background:transparent; margin-top:6px; }
#ai-panel .ai-header .ai-button { padding:4px 5px; border-color:transparent; }

@media(max-width:899px) { .ai-session-status { padding:7px 12px; } #ai-panel .ai-header .ai-button { font-size:11px; min-width:36px; } }

.ai-message-pagination { display:flex; flex-wrap:wrap; align-items:center; gap:6px 10px; margin-bottom:12px; }
.ai-message-pagination p { margin:0; }

/* 已批准的方案 1：图标顶栏、通栏问题、正文回答和底部一体式输入。 */
.ai-sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; border: 0; }
#ai-panel .ai-icon-button { width: var(--ai-toolbar-target); height: var(--ai-toolbar-target); min-height: var(--ai-toolbar-target); flex: 0 0 auto; padding: 8px; border-color: transparent; background: transparent; }
#ai-panel .ai-icon-button .mm-icon { width: 20px; height: 20px; }
#ai-panel .ai-header .ai-icon-button { padding: 8px; }
.ai-context-summary > .mm-icon { color: var(--ui-muted); }
.ai-input-box { border: 1px solid var(--ui-border); border-radius: var(--ai-chat-radius); background: var(--ui-panel); }
.ai-input-box:focus-within { border-color: var(--ui-accent); }
#ai-panel .ai-input-box textarea { display: block; width: 100%; min-height: 68px; max-height: 160px; padding: 14px 14px 4px; border: 0; border-radius: var(--ai-chat-radius); resize: none; outline: none; background: transparent; line-height: 1.6; }
#ai-panel .ai-quick-toggle { border-radius: 50%; background: var(--ui-bg); }
#ai-panel .ai-quick-toggle[aria-expanded="true"] { background: var(--ui-accent-soft); color: var(--ui-accent); }
#ai-panel .ai-map-task { min-width: 0; padding: 4px 8px; border: 0; border-left: 1px solid var(--ui-border); border-radius: 0; font-size: 12px; white-space: nowrap; background: transparent; color: var(--ui-muted); }
#ai-panel .ai-map-task[aria-pressed="true"] { border-radius: var(--radius-btn); background: var(--ui-accent-soft); color: var(--ui-accent); }
#ai-panel .ai-model-button { flex: 1; min-width: 0; display: block; border: 0; padding: 4px; background: transparent; color: var(--ui-muted); font-size: 12px; text-align: right; text-overflow: ellipsis; overflow: hidden; white-space: nowrap; }
#ai-panel .ai-send-button { border-radius: 50%; background: var(--ui-accent); color: var(--ui-primary-text); }
.ai-compose-status { display: block; min-height: 19px; margin: 6px 2px 0; font-size: 11px; }
.ai-quick-popover { position: absolute; z-index: 1; left: var(--ai-panel-gutter); bottom: calc(100% + 2px); width: min(var(--ai-quick-width), calc(100% - 2 * var(--ai-panel-gutter))); max-height: min(var(--ai-quick-max-height), 48dvh); overflow-y: auto; overscroll-behavior: contain; padding: 12px; border: 1px solid var(--ui-border); border-radius: var(--ai-chat-radius); background: var(--ui-panel); box-shadow: var(--ui-shadow); }
#ai-panel .ai-quick-popover[hidden] { display: none; }
.ai-quick-heading { display: block; margin: 0 6px 8px; font-size: 14px; }
#ai-panel .ai-quick-question { display: block; width: 100%; min-height: 44px; padding: 10px 6px; border: 0; border-top: 1px solid var(--ui-border); border-radius: 0; text-align: left; font-size: 14px; background: transparent; }
#ai-panel .ai-quick-help { margin: 8px 6px; }
.ai-quick-more { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--ui-border); padding-top: 4px; }
#ai-panel .ai-quick-more .ai-button { border: 0; padding: 6px; font-size: 12px; }
#ai-panel .ai-message-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
#ai-panel .ai-message-actions .ai-button { background: transparent; border-color: transparent; padding-left: 0; color: var(--ui-muted); font-size: 12px; }
@media (max-width: 899px) {
  #ai-panel { --ai-panel-gutter: 16px; --ai-toolbar-target: 44px; }
  .ai-header { gap: 2px; padding-inline: 12px; }
  .ai-header strong { font-size: 16px; }
  .ai-context, .ai-content { padding-inline: var(--ai-panel-gutter); }
  .ai-composer { padding-inline: 12px; }
  .ai-compose-tools { gap: 3px; padding-inline: 6px; }
  #ai-panel .ai-map-task { padding-inline: 6px; }
  .ai-quick-popover { left: 12px; width: calc(100% - 24px); }
}

/* 回答的轻量排版与来源按钮共用同一安全 DOM，不执行模型返回的 HTML。 */
.ai-message-assistant .ai-answer-text { white-space: normal; }
#ai-panel .ai-answer-text p { white-space: pre-wrap; margin: 0 0 14px; }
#ai-panel .ai-answer-text h3 { font-size: 20px; margin: 0 0 14px; }
#ai-panel .ai-answer-text h4, #ai-panel .ai-answer-text h5, #ai-panel .ai-answer-text h6 { font-size: 16px; margin: 16px 0 8px; }
.ai-answer-text ul, .ai-answer-text ol { padding-left: 26px; margin: 12px 0; }
.ai-answer-text li { margin: 8px 0; }
.ai-answer-text code { font-size: .9em; padding: 1px 4px; border-radius: var(--radius-btn); background: var(--ui-bg); }

/* 本轮待发送材料与历史消息共用标签；内容保持只读，不占据问题正文。 */
.ai-composer-materials { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 6px; max-height: 180px; overflow: auto; padding: 10px 10px 0; }
.ai-composer-materials:has(details[open]) { max-height: min(36dvh, 280px); }
.ai-composer-materials[hidden], .ai-message-materials[hidden] { display: none; }
.ai-message-materials { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.ai-material-tag { display: flex; flex-wrap: wrap; align-items: center; max-width: 100%; min-width: 0; border-radius: var(--radius-btn); background: var(--ui-accent-soft); color: var(--ui-accent); }
#ai-panel .ai-material-location { flex: 1; min-width: 0; justify-content: flex-start; border: 0; background: transparent; color: var(--ui-accent); font-size: 12px; text-align: left; overflow-wrap: anywhere; }
#ai-panel .ai-material-remove { width: 30px; height: 34px; min-height: 34px; padding: 6px; }
.ai-material-detail { display: contents; }
.ai-material-detail > summary { list-style: none; cursor: pointer; padding: 8px; font-size: 11px; }
.ai-material-detail > summary::-webkit-details-marker { display: none; }
.ai-material-body { order: 3; flex-basis: 100%; min-width: 0; max-height: 180px; padding: 10px; overflow: auto; border-top: 1px solid var(--ui-border); color: var(--ui-text); }
.ai-material-body[hidden] { display: none; }
.ai-material-body pre { font: 12px/1.6 var(--font-ui); white-space: pre-wrap; overflow-wrap: anywhere; user-select: text; margin: 6px 0; }
@media (max-width: 899px) {
  .ai-composer-materials { max-height: 144px; }
  #ai-panel .ai-material-remove { width: 44px; height: 44px; }
  .ai-material-detail > summary { min-height: 44px; display: flex; align-items: center; }
}