commit 473102fc1dfcf2b1f092188d3ca7c5df7874b879
Author: pikaqiu <pikaqiu@local>
Date:   Sat May 16 21:34:04 2026 +0800

    Initial OneMind Obsidian plugin

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..93369e3
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+node_modules/
+.DS_Store
+*.tgz
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.npm/
+.cache/
+dist/
diff --git a/README.md b/README.md
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index 0000000..a5af379
--- /dev/null
+++ b/README.md
@@ -0,0 +1,62 @@
+# OneMind
+
+OneMind is an editor-first Obsidian mind map plugin. It opens the current Markdown note as a clean SVG + DOM mind map and writes edits back to plain Markdown.
+
+## MVP Features
+
+- Open the active Markdown note in a full-page OneMind view.
+- Switch from Markdown to OneMind and focus the node matching the current heading.
+- Copy a selected node as a standard `obsidian://open` URI with a heading anchor.
+- Parse headings and unordered lists into a tree.
+- Render a horizontal mind map with SVG Bezier links and DOM nodes.
+- Choose between right-facing and balanced two-sided layouts.
+- Add child nodes with `Tab`, add sibling nodes with `Enter`.
+- Duplicate nodes and restructure with `Alt/Option + Arrow keys`.
+- Use the node context menu for common edit, copy, tag, export, and delete actions.
+- Long-press nodes on touch devices to open the same context menu.
+- Edit nodes with `F2` or double click.
+- Add, replace, or clear node emoji icons; icons are stored as leading emoji in Markdown text.
+- Show Markdown tags such as `#todo` or `#idea` as node badges.
+- Add or clear Markdown tag badges from selected nodes, including multi-selections.
+- Filter the visible mind map by tag from tag badges or the command palette.
+- See visible/total node counts, selected count, zoom, filter, and save state in the canvas status bar.
+- Copy a selected branch as Markdown and paste Markdown from the clipboard as child or sibling nodes.
+- Delete nodes with `Delete` or `Backspace`.
+- Multi-select nodes with `Ctrl/Cmd + click`, range-select with `Shift + click`, and select all with `Ctrl/Cmd + A`.
+- Apply delete, collapse, and emoji actions to the current multi-selection.
+- Drag nodes onto another node to make them children, or between nearby nodes to reorder siblings.
+- Collapse or expand nodes with `Space`.
+- Expand or collapse the full map from toolbar actions or commands.
+- Search nodes with `/`, then use `Enter` and `Shift + Enter` to move through matches.
+- Navigate large maps with the collapsible outline panel.
+- Move selection with arrow keys.
+- Pan with blank-canvas drag.
+- Zoom with mouse wheel or `Ctrl/Cmd +` and `Ctrl/Cmd -`.
+- Fit to view with `Ctrl/Cmd + Shift + F`, focus selection with `Ctrl/Cmd + F`.
+- Basic local undo and redo with `Ctrl/Cmd + Z` and `Ctrl/Cmd + Shift + Z`.
+- Inline rendering for `**bold**`, `` `code` ``, and `[[wikilinks]]`.
+- Draw dashed cross-branch association links from local wikilinks like `[[#Target]]` or `[[Target]]`.
+- Export the current mind map as `.onemind.svg` or `.onemind.png` beside the source note.
+- Export only the selected branch as SVG or PNG from commands.
+- Configure PNG export scale and transparent background.
+- Preserve frontmatter and leading non-map Markdown when writing edits back.
+- Resolve external Markdown changes with a conflict prompt when local mind map edits are still unsaved.
+- Responsive toolbar treatment for narrow/mobile panes.
+- Chinese and English UI language setting.
+- Settings for layout direction, auto-save delay, default expand depth, animation, visual branch color pickers, and export behavior.
+- Obsidian commands for node editing actions, ready for custom hotkeys.
+
+## Development
+
+```bash
+npm install
+npm run dev
+```
+
+For a production build:
+
+```bash
+npm run build
+```
+
+Copy or symlink this folder into an Obsidian vault under `.obsidian/plugins/onemind`, then enable the plugin from Obsidian settings.
diff --git a/esbuild.config.mjs b/esbuild.config.mjs
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index 0000000..1ccb124
--- /dev/null
+++ b/esbuild.config.mjs
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+import esbuild from "esbuild";
+import process from "node:process";
+import builtins from "builtin-modules";
+
+const prod = process.argv[2] === "production";
+
+const context = await esbuild.context({
+  banner: {
+    js: "/* OneMind - Obsidian mind map plugin */"
+  },
+  entryPoints: ["main.ts"],
+  bundle: true,
+  external: [
+    "obsidian",
+    "electron",
+    "@codemirror/autocomplete",
+    "@codemirror/collab",
+    "@codemirror/commands",
+    "@codemirror/language",
+    "@codemirror/lint",
+    "@codemirror/search",
+    "@codemirror/state",
+    "@codemirror/view",
+    "@lezer/common",
+    "@lezer/highlight",
+    "@lezer/lr",
+    ...builtins
+  ],
+  format: "cjs",
+  target: "es2018",
+  logLevel: "info",
+  sourcemap: prod ? false : "inline",
+  treeShaking: true,
+  outfile: "main.js",
+  minify: prod
+});
+
+if (prod) {
+  await context.rebuild();
+  await context.dispose();
+} else {
+  await context.watch();
+  console.log("Watching for changes...");
+}
diff --git a/main.js b/main.js
new file mode 100644
index 0000000..08e1f5e
--- /dev/null
+++ b/main.js
@@ -0,0 +1,13 @@
+/* OneMind - Obsidian mind map plugin */
+var K=Object.defineProperty;var we=Object.getOwnPropertyDescriptor;var xe=Object.getOwnPropertyNames;var ye=Object.prototype.hasOwnProperty;var Se=(o,s)=>{for(var e in s)K(o,e,{get:s[e],enumerable:!0})},Me=(o,s,e,t)=>{if(s&&typeof s=="object"||typeof s=="function")for(let i of xe(s))!ye.call(o,i)&&i!==e&&K(o,i,{get:()=>s[i],enumerable:!(t=we(s,i))||t.enumerable});return o};var be=o=>Me(K({},"__esModule",{value:!0}),o);var Fe={};Se(Fe,{default:()=>V});module.exports=be(Fe);var h=require("obsidian"),L="onemind-view",te=["\u{1F4A1}","\u2705","\u{1F525}","\u2B50","\u{1F3AF}","\u{1F680}","\u{1F4CC}","\u{1F4CE}","\u{1F9E0}","\u{1F4DD}","\u{1F4DA}","\u{1F50D}","\u26A1","\u2764\uFE0F","\u2753","\u26A0\uFE0F","\u{1F331}","\u{1F3C1}","\u{1F527}","\u{1F4AC}","\u{1F3A8}","\u{1F9E9}","\u{1F4CA}","\u{1F517}"],$={autoSaveDelay:300,branchColors:["#5b8def","#45b36b","#e89b3c","#9b72e7","#df6f9f"],defaultExpandDepth:99,animations:!0,layoutDirection:"right",exportScale:2,exportTransparentBackground:!1,language:"zh",showAssociationLinks:!0},ie={en:{openRibbon:"Open OneMind",openMindMap:"Open current note as mind map",returnMarkdown:"Return to Markdown editor",addChild:"Add child node",addSibling:"Add sibling node",duplicateNode:"Duplicate selected node",moveUp:"Move selected node up",moveDown:"Move selected node down",indentNode:"Indent selected node",outdentNode:"Outdent selected node",editNode:"Edit selected node",deleteNode:"Delete selected node",toggleNode:"Toggle selected node",setEmoji:"Set selected node emoji",clearEmoji:"Clear selected node emoji",addTag:"Add tag to selected nodes",clearTags:"Clear tags from selected nodes",copyBranch:"Copy selected branch as Markdown",pasteChild:"Paste Markdown as child nodes",pasteSibling:"Paste Markdown as sibling nodes",selectAll:"Select all nodes",expandAll:"Expand all nodes",collapseAll:"Collapse all nodes",fitMap:"Fit mind map to view",focusNode:"Focus selected node",searchNodes:"Search nodes",filterByTag:"Filter by tag",clearTagFilter:"Clear tag filter",toggleOutline:"Toggle outline",copyNodeLink:"Copy selected node link",exportSvg:"Export mind map as SVG",exportPng:"Export mind map as PNG",exportSelectedSvg:"Export selected branch as SVG",exportSelectedPng:"Export selected branch as PNG",markdown:"Markdown",addChildShort:"Add child",addSiblingShort:"Add sibling",duplicateShort:"Duplicate",setEmojiIcon:"Set emoji icon",addTagShort:"Add tag",deleteShort:"Delete",fitShort:"Fit",exportSvgShort:"Export SVG",exportPngShort:"Export PNG",copyLinkShort:"Copy node link",outline:"Outline",hideOutline:"Hide outline",openMarkdownFirst:"Open a Markdown note first.",emptyView:"Open a Markdown note to use OneMind.",reloadedExternal:"OneMind reloaded the external Markdown changes.",keptLocal:"OneMind kept the mind map edits and wrote them to Markdown.",exported:"Exported",copiedLink:"Copied OneMind node link.",copiedBranch:"Copied branch Markdown.",pastedMarkdown:"Pasted Markdown into OneMind.",clipboardEmpty:"Clipboard does not contain Markdown nodes.",tagFilterActive:"Tag filter",chooseEmoji:"Choose an emoji icon",enterTag:"Enter tag name",conflictTitle:"OneMind conflict",conflictBody:"This note changed on disk while the mind map has unsaved local edits. Choose which version should win.",reloadMarkdown:"Reload Markdown",keepEdits:"Keep OneMind edits",settingsTitle:"OneMind",language:"Language",languageDesc:"Choose the language used by OneMind UI.",english:"English",chinese:"\u4E2D\u6587",autoSaveDelay:"Auto-save delay",autoSaveDelayDesc:"Milliseconds to wait after a mind map edit before writing Markdown.",defaultExpandDepth:"Default expand depth",defaultExpandDepthDesc:"How many levels are expanded when a note opens. Use 99 for all.",layoutDirection:"Layout direction",layoutDirectionDesc:"Choose a classic right-facing tree or a balanced map with branches on both sides.",horizontalRight:"Horizontal right",balanced:"Balanced",layoutAnimation:"Layout animation",layoutAnimationDesc:"Animate node movement after edits.",branchColors:"Branch colors",branchColorsDesc:"Comma-separated CSS colors used for first-level branches.",resetBranchColors:"Reset branch colors",pngScale:"PNG export scale",pngScaleDesc:"Resolution multiplier used when exporting PNG files.",transparentPng:"Transparent PNG background",transparentPngDesc:"Leave PNG exports transparent instead of filling the Obsidian background color.",showAssociationLinks:"Show association links",showAssociationLinksDesc:"Draw dashed cross-branch links for local wikilinks like [[#Heading]] or [[Heading]].",saved:"Saved",unsaved:"Unsaved",saving:"Saving",nodesLabel:"nodes",selectedLabel:"selected",zoomLabel:"zoom"},zh:{openRibbon:"\u6253\u5F00 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onload(){this.settings=Object.assign({},$,await this.loadData()),this.registerView(L,e=>new T(e,this)),this.addRibbonIcon("git-fork",this.t("openRibbon"),()=>{this.openMindMap()}),this.addCommand({id:"open-onemind-view",name:this.t("openMindMap"),checkCallback:e=>{let t=this.getActiveMarkdownFile();return t?(e||this.openMindMap(t,this.getActiveHeadingAnchor()),!0):!1}}),this.addCommand({id:"return-to-markdown",name:this.t("returnMarkdown"),callback:()=>{let e=this.app.workspace.getActiveViewOfType(T);e&&e.openMarkdown()}}),this.addMindMapCommand("add-child-node",this.t("addChild"),e=>e.addChildNode()),this.addMindMapCommand("add-sibling-node",this.t("addSibling"),e=>e.addSiblingNode()),this.addMindMapCommand("duplicate-node",this.t("duplicateNode"),e=>e.duplicateSelectedNode()),this.addMindMapCommand("move-node-up",this.t("moveUp"),e=>e.moveSelectedNode("up")),this.addMindMapCommand("move-node-down",this.t("moveDown"),e=>e.moveSelectedNode("down")),this.addMindMapCommand("indent-node",this.t("indentNode"),e=>e.moveSelectedNode("indent")),this.addMindMapCommand("outdent-node",this.t("outdentNode"),e=>e.moveSelectedNode("outdent")),this.addMindMapCommand("edit-selected-node",this.t("editNode"),e=>e.editSelectedNode()),this.addMindMapCommand("delete-selected-node",this.t("deleteNode"),e=>e.deleteSelectedNode()),this.addMindMapCommand("toggle-selected-node",this.t("toggleNode"),e=>e.toggleSelectedNode()),this.addMindMapCommand("set-node-emoji",this.t("setEmoji"),e=>e.openEmojiPicker()),this.addMindMapCommand("clear-node-emoji",this.t("clearEmoji"),e=>e.clearSelectedEmoji()),this.addMindMapCommand("add-node-tag",this.t("addTag"),e=>e.openTagModal()),this.addMindMapCommand("clear-node-tags",this.t("clearTags"),e=>e.clearSelectedTags()),this.addMindMapCommand("select-all-nodes",this.t("selectAll"),e=>e.selectAllNodes()),this.addMindMapCommand("expand-all-nodes",this.t("expandAll"),e=>e.expandAllNodes()),this.addMindMapCommand("collapse-all-nodes",this.t("collapseAll"),e=>e.collapseAllNodes()),this.addMindMapCommand("fit-mind-map",this.t("fitMap"),e=>e.fitToView()),this.addMindMapCommand("focus-selected-node",this.t("focusNode"),e=>e.focusSelected()),this.addMindMapCommand("search-nodes",this.t("searchNodes"),e=>e.focusSearch()),this.addMindMapCommand("filter-by-tag",this.t("filterByTag"),e=>e.openTagFilterModal()),this.addMindMapCommand("clear-tag-filter",this.t("clearTagFilter"),e=>e.clearTagFilter()),this.addMindMapCommand("toggle-outline",this.t("toggleOutline"),e=>e.toggleOutline()),this.addMindMapCommand("copy-node-link",this.t("copyNodeLink"),e=>void e.copySelectedNodeLink()),this.addMindMapCommand("copy-branch-markdown",this.t("copyBranch"),e=>void e.copySelectedBranchMarkdown()),this.addMindMapCommand("paste-markdown-child",this.t("pasteChild"),e=>void e.pasteMarkdownAsChild()),this.addMindMapCommand("paste-markdown-sibling",this.t("pasteSibling"),e=>void e.pasteMarkdownAsSibling()),this.addMindMapCommand("export-svg",this.t("exportSvg"),e=>void e.exportSvg()),this.addMindMapCommand("export-png",this.t("exportPng"),e=>void e.exportPng()),this.addMindMapCommand("export-selected-svg",this.t("exportSelectedSvg"),e=>void e.exportSelectedSvg()),this.addMindMapCommand("export-selected-png",this.t("exportSelectedPng"),e=>void e.exportSelectedPng()),this.addSettingTab(new G(this.app,this))}onunload(){this.app.workspace.detachLeavesOfType(L)}async saveSettings(){await this.saveData(this.settings)}t(e){var t,i;return(i=(t=ie[this.settings.language])==null?void 0:t[e])!=null?i:ie.en[e]}refreshOpenViews(){this.app.workspace.getLeavesOfType(L).forEach(e=>{let t=e.view;t instanceof T&&t.applySettings()})}addMindMapCommand(e,t,i){this.addCommand({id:e,name:t,checkCallback:n=>{let r=this.app.workspace.getActiveViewOfType(T);return r?(n||i(r),!0):!1}})}getActiveMarkdownFile(){var t;let e=this.app.workspace.getActiveViewOfType(h.MarkdownView);return(t=e==null?void 0:e.file)!=null?t:null}getActiveHeadingAnchor(){let e=this.app.workspace.getActiveViewOfType(h.MarkdownView);if(!e)return null;let t=e.editor.getCursor();for(let i=t.line;i>=0;i-=1){let n=/^(#{1,6})\s+(.+?)\s*$/.exec(e.editor.getLine(i));if(n)return N(n[2])}return null}async openMindMap(e=this.getActiveMarkdownFile(),t=null){if(!e){new h.Notice(this.t("openMarkdownFirst"));return}await this.app.workspace.getLeaf(!1).setViewState({type:L,state:{file:e.path,heading:t!=null?t:void 0},active:!0})}},T=class extends h.ItemView{constructor(e,t){super(e);this.file=null;this.root=null;this.selectedId=null;this.selectedIds=new Set;this.positions=[];this.searchQuery="";this.searchMatches=[];this.activeSearchIndex=-1;this.saveTimer=null;this.isSaving=!1;this.history=[];this.future=[];this.scale=1;this.panX=80;this.panY=80;this.panning=null;this.dragState=null;this.longPressTimer=null;this.dropTarget=null;this.dragMarkerEl=null;this.lastSavedMarkdown="";this.hasLocalUnsavedChange=!1;this.documentPrefix="";this.conflictModalOpen=!1;this.pendingFocus=null;this.outlineVisible=!0;this.tagFilter=null;this.plugin=t}getViewType(){return L}getDisplayText(){return this.file?`OneMind: ${this.file.basename}`:"OneMind"}getIcon(){return"git-fork"}async setState(e,t){await super.setState(e,t),this.file=e.file?this.app.vault.getAbstractFileByPath(e.file):null,this.pendingFocus={node:e.node,heading:e.heading},await this.loadFile()}getState(){var e,t,i;return{file:(t=(e=this.file)==null?void 0:e.path)!=null?t:"",node:(i=this.selectedId)!=null?i:void 0}}async onOpen(){this.contentEl.empty(),this.contentEl.addClass("onemind-view"),this.contentEl.toggleClass("is-animation-disabled",!this.plugin.settings.animations);let e=this.contentEl.createDiv({cls:"onemind-toolbar"});this.addIconButton(e,"file-text",this.plugin.t("markdown"),()=>void this.openMarkdown()),this.addIconButton(e,"plus",this.plugin.t("addChildShort"),()=>this.addChildNode()),this.addIconButton(e,"corner-down-right",this.plugin.t("addSiblingShort"),()=>this.addSiblingNode()),this.addIconButton(e,"copy-plus",this.plugin.t("duplicateShort"),()=>this.duplicateSelectedNode()),this.addIconButton(e,"smile",this.plugin.t("setEmojiIcon"),()=>this.openEmojiPicker()),this.addIconButton(e,"tag",this.plugin.t("addTagShort"),()=>this.openTagModal()),this.addIconButton(e,"filter",this.plugin.t("filterByTag"),()=>this.openTagFilterModal()),this.addIconButton(e,"trash-2",this.plugin.t("deleteShort"),()=>this.deleteSelectedNode()),this.addIconButton(e,"unfold-vertical",this.plugin.t("expandAll"),()=>this.expandAllNodes()),this.addIconButton(e,"fold-vertical",this.plugin.t("collapseAll"),()=>this.collapseAllNodes()),this.addIconButton(e,"minimize",this.plugin.t("fitShort"),()=>this.fitToView()),this.addIconButton(e,"download",this.plugin.t("exportSvgShort"),()=>void this.exportSvg()),this.addIconButton(e,"image",this.plugin.t("exportPngShort"),()=>void this.exportPng()),this.addIconButton(e,"link",this.plugin.t("copyLinkShort"),()=>void this.copySelectedNodeLink()),this.addIconButton(e,"copy",this.plugin.t("copyBranch"),()=>void this.copySelectedBranchMarkdown()),this.addIconButton(e,"list-tree",this.plugin.t("toggleOutline"),()=>this.toggleOutline()),this.addIconButton(e,"search",this.plugin.t("searchNodes"),()=>this.searchInputEl.focus());let t=e.createDiv({cls:"onemind-search"});this.searchInputEl=t.createEl("input",{cls:"onemind-search-input",attr:{type:"search",placeholder:this.plugin.t("searchNodes"),"aria-label":this.plugin.t("searchNodes")}}),this.searchCountEl=t.createEl("span",{cls:"onemind-search-count"}),this.searchInputEl.addEventListener("input",()=>this.updateSearch(this.searchInputEl.value)),this.searchInputEl.addEventListener("keydown",n=>this.onSearchKeyDown(n)),this.canvasEl=this.contentEl.createDiv({cls:"onemind-canvas"}),this.sceneEl=this.canvasEl.createDiv({cls:"onemind-scene"}),this.svgEl=U("svg"),this.svgEl.addClass("onemind-links"),this.nodesEl=this.sceneEl.createDiv({cls:"onemind-nodes"}),this.sceneEl.prepend(this.svgEl),this.outlineEl=this.canvasEl.createDiv({cls:"onemind-outline"});let i=this.outlineEl.createDiv({cls:"onemind-outline-header"});i.createSpan({text:this.plugin.t("outline")}),this.addIconButton(i,"x",this.plugin.t("hideOutline"),()=>this.toggleOutline(!1)),this.outlineListEl=this.outlineEl.createDiv({cls:"onemind-outline-list"}),this.statusEl=this.canvasEl.createDiv({cls:"onemind-status"}),this.registerDomEvent(this.canvasEl,"wheel",n=>this.onWheel(n)),this.registerDomEvent(this.canvasEl,"pointerdown",n=>this.onPointerDown(n)),this.registerDomEvent(window,"pointermove",n=>this.onPointerMove(n)),this.registerDomEvent(window,"pointerup",n=>this.onPointerUp(n)),this.registerDomEvent(this.contentEl,"keydown",n=>this.onKeyDown(n)),this.registerEvent(this.app.vault.on("modify",async n=>{if(!(!this.file||n.path!==this.file.path||this.isSaving)){if(this.hasLocalUnsavedChange){this.showConflictModal();return}this.loadFile()}})),await this.loadFile()}async openMarkdown(){this.file&&await this.leaf.setViewState({type:"markdown",state:{file:this.file.path},active:!0})}applySettings(){this.contentEl.toggleClass("is-animation-disabled",!this.plugin.settings.animations),this.render()}addIconButton(e,t,i,n){let r=e.createEl("button",{cls:"clickable-icon onemind-tool-button",attr:{"aria-label":i,title:i}});(0,h.setIcon)(r,t),r.onClickEvent(n)}async loadFile(){if(!this.file||!(this.file instanceof h.TFile)){this.renderEmpty(this.plugin.t("emptyView"));return}let e=await this.app.vault.read(this.file),t=A(e,this.file.basename);this.root=t.root,this.documentPrefix=t.prefix,ue(this.root,this.plugin.settings.defaultExpandDepth),this.lastSavedMarkdown=e,this.hasLocalUnsavedChange=!1,this.history=[],this.future=[],this.selectedId=this.selectedId&&y(this.root,this.selectedId)?this.selectedId:this.root.id,this.selectedIds=new Set([this.selectedId]),this.render(),this.applyPendingFocus()}renderEmpty(e){var t,i;this.root=null,(t=this.nodesEl)==null||t.empty(),(i=this.svgEl)==null||i.empty(),this.contentEl.createDiv({cls:"onemind-empty",text:e})}render(){if(!this.root)return;let e=this.tagFilter?he(this.root,this.tagFilter):this.root;if(this.positions=e?oe(e,this.plugin.settings.branchColors,this.plugin.settings.layoutDirection):[],this.refreshSearchMatches(),this.nodesEl.empty(),this.svgEl.empty(),this.dragMarkerEl=null,this.positions.length===0){this.renderOutline(),this.applyTransform();return}let t=ee(this.positions);this.svgEl.setAttrs({width:`${Math.max(1,t.width+300)}`,height:`${Math.max(1,t.height+180)}`,viewBox:`${t.minX-80} ${t.minY-80} ${t.width+160} ${t.height+160}`});for(let i of this.positions)i.parent&&this.drawLink(i);this.plugin.settings.showAssociationLinks&&this.drawAssociationLinks();for(let i of this.positions)this.renderNode(i);this.renderOutline(),this.updateStatus(),this.applyTransform()}renderOutline(){if(!this.root||!this.outlineListEl)return;if(this.outlineEl.toggleClass("is-hidden",!this.outlineVisible),this.outlineListEl.empty(),this.tagFilter){let t=this.outlineListEl.createDiv({cls:"onemind-outline-filter"});t.createSpan({text:`${this.plugin.t("tagFilterActive")}: #${this.tagFilter}`}),t.createEl("button",{text:"x"}).onClickEvent(()=>this.clearTagFilter())}let e=(t,i)=>{if(this.tagFilter&&!ce(t,this.tagFilter))return;let n=this.outlineListEl.createDiv({cls:"onemind-outline-row"});n.toggleClass("is-selected",this.selectedIds.has(t.id)),n.style.paddingLeft=`${8+i*14}px`;let r=k(t.text);if(r.emoji&&n.createSpan({cls:"onemind-outline-emoji",text:r.emoji}),n.createSpan({cls:"onemind-outline-label",text:H(r.displayLabel)}),t.collapsed&&t.children.length>0&&n.createSpan({cls:"onemind-outline-count",text:`${t.children.length}`}),n.onClickEvent(d=>{d.stopPropagation(),this.selectAndFocusNode(t.id)}),!t.collapsed)for(let d of t.children)e(d,i+1)};e(this.root,0)}renderNode(e){let t=this.nodesEl.createDiv({cls:"onemind-node"});t.toggleClass("is-root",e.depth===0),t.toggleClass("is-selected",this.selectedIds.has(e.node.id)),t.toggleClass("is-primary-selected",e.node.id===this.selectedId),t.toggleClass("is-search-match",this.searchMatches.includes(e.node.id)),t.toggleClass("is-active-search-match",this.activeSearchIndex>=0&&this.searchMatches[this.activeSearchIndex]===e.node.id),t.toggleClass("is-collapsed",e.node.collapsed),t.setAttr("data-node-id",e.node.id),t.setAttr("data-node-anchor",N(e.node.text)),t.setAttr("tabindex","0"),t.style.left=`${e.x}px`,t.style.top=`${e.y}px`,t.style.width=`${e.width}px`,t.style.borderColor=e.color;let i=k(e.node.text);i.emoji&&(t.createDiv({cls:"onemind-node-emoji",text:i.emoji}),t.addClass("has-emoji"));let n=t.createDiv({cls:"onemind-node-content"});if(Te(n,i.displayLabel,this.app),i.tags.length>0){let r=t.createDiv({cls:"onemind-node-tags"});for(let d of i.tags){let a=r.createSpan({cls:"onemind-node-tag",text:`#${d}`});a.toggleClass("is-active",this.tagFilter===d),a.onClickEvent(c=>{c.stopPropagation(),this.setTagFilter(d)})}}if(e.node.children.length>0){let r=t.createDiv({cls:"onemind-collapse"});(0,h.setIcon)(r,e.node.collapsed?"chevron-right":"chevron-down"),r.onClickEvent(d=>{d.stopPropagation(),this.toggleCollapse(e.node.id)})}t.onClickEvent(r=>this.handleNodeClick(r,e.node.id)),t.ondblclick=()=>this.editNode(e.node.id),t.addEventListener("pointerdown",r=>this.onNodePointerDown(r,e)),t.addEventListener("pointermove",()=>this.clearLongPressTimer()),t.addEventListener("pointerleave",()=>this.clearLongPressTimer()),t.addEventListener("contextmenu",r=>this.openNodeMenu(r,e.node.id))}openNodeMenu(e,t){e.preventDefault(),e.stopPropagation(),this.selectedIds.has(t)||(this.selectedId=t,this.selectedIds=new Set([t]),this.render());let i=new h.Menu;i.addItem(n=>n.setTitle(this.plugin.t("addChild")).setIcon("plus").onClick(()=>this.addChildNode())),i.addItem(n=>n.setTitle(this.plugin.t("addSibling")).setIcon("corner-down-right").onClick(()=>this.addSiblingNode())),i.addItem(n=>n.setTitle(this.plugin.t("editNode")).setIcon("pencil").onClick(()=>this.editSelectedNode())),i.addSeparator(),i.addItem(n=>n.setTitle(this.plugin.t("duplicateNode")).setIcon("copy-plus").onClick(()=>this.duplicateSelectedNode())),i.addItem(n=>n.setTitle(this.plugin.t("copyBranch")).setIcon("copy").onClick(()=>void this.copySelectedBranchMarkdown())),i.addItem(n=>n.setTitle(this.plugin.t("copyNodeLink")).setIcon("link").onClick(()=>void this.copySelectedNodeLink())),i.addSeparator(),i.addItem(n=>n.setTitle(this.plugin.t("setEmoji")).setIcon("smile").onClick(()=>this.openEmojiPicker())),i.addItem(n=>n.setTitle(this.plugin.t("addTag")).setIcon("tag").onClick(()=>this.openTagModal())),i.addItem(n=>n.setTitle(this.plugin.t("clearTags")).setIcon("tag").onClick(()=>this.clearSelectedTags())),i.addSeparator(),i.addItem(n=>n.setTitle(this.plugin.t("exportSelectedSvg")).setIcon("download").onClick(()=>void this.exportSelectedSvg())),i.addItem(n=>n.setTitle(this.plugin.t("exportSelectedPng")).setIcon("image").onClick(()=>void this.exportSelectedPng())),i.addSeparator(),i.addItem(n=>n.setTitle(this.plugin.t("deleteNode")).setIcon("trash-2").onClick(()=>this.deleteSelectedNode())),i.showAtMouseEvent(e)}openNodeMenuAt(e,t,i){let n=new MouseEvent("contextmenu",{clientX:t,clientY:i,bubbles:!0,cancelable:!0});this.openNodeMenu(n,e)}drawLink(e){let t=this.positions.find(v=>v.node===e.parent);if(!t)return;let i=U("path"),n=e.x>=t.x,r=n?t.x+t.width:t.x,d=t.y+S/2,a=n?e.x:e.x+e.width,c=e.y+S/2,u=Math.max(60,Math.abs(a-r)*.45)*(n?1:-1);i.setAttrs({d:`M ${r} ${d} C ${r+u} ${d}, ${a-u} ${c}, ${a} ${c}`,stroke:e.color,fill:"none"}),this.svgEl.appendChild(i)}drawAssociationLinks(){let e=new Map;for(let i of this.positions)e.set(N(i.node.text),i);let t=new Set;for(let i of this.positions){let n=ae(i.node.text,this.file);for(let r of n){let d=e.get(r);if(!d||d.node.id===i.node.id)continue;let a=[i.node.id,d.node.id].sort().join(":");t.has(a)||(t.add(a),this.drawAssociationLink(i,d))}}}drawAssociationLink(e,t){let i=U("path");i.addClass("onemind-association-link");let n=e.x+e.width/2,r=e.y+S/2,d=t.x+t.width/2,a=t.y+S/2,c=(n+d)/2,u=Math.max(80,Math.abs(a-r)*.35),v=Math.min(r,a)-u;i.setAttrs({d:`M ${n} ${r} Q ${c} ${v}, ${d} ${a}`,fill:"none"}),this.svgEl.appendChild(i)}selectNode(e){this.selectedId=e,this.selectedIds=new Set([e]),this.render()}selectAndFocusNode(e){this.selectedId=e,this.selectedIds=new Set([e]),this.expandAncestors(e),this.render(),this.focusSelected()}applyPendingFocus(){if(!this.root||!this.pendingFocus)return;let e=this.resolveFocusTarget(this.pendingFocus);this.pendingFocus=null,e&&window.setTimeout(()=>this.selectAndFocusNode(e.id),0)}resolveFocusTarget(e){if(!this.root)return null;if(e.node){let t=y(this.root,e.node);if(t)return t;let i=Z(this.root,e.node);if(i)return i}return e.heading?Z(this.root,e.heading):null}handleNodeClick(e,t){if(e.metaKey||e.ctrlKey){this.toggleNodeSelection(t);return}if(e.shiftKey&&this.selectedId){this.selectRange(this.selectedId,t);return}this.selectNode(t)}toggleNodeSelection(e){var t;this.selectedIds.has(e)&&this.selectedIds.size>1?(this.selectedIds.delete(e),this.selectedId===e&&(this.selectedId=(t=this.selectedIds.values().next().value)!=null?t:null)):(this.selectedIds.add(e),this.selectedId=e),this.render()}selectRange(e,t){let i=this.positions.map(c=>c.node.id),n=i.indexOf(e),r=i.indexOf(t);if(n===-1||r===-1){this.selectNode(t);return}let[d,a]=n<r?[n,r]:[r,n];this.selectedIds=new Set(i.slice(d,a+1)),this.selectedId=t,this.render()}editSelectedNode(){this.selectedId&&this.editNode(this.selectedId)}openEmojiPicker(){!this.root||!this.selectedId||new _(this.app,this.plugin.t("chooseEmoji"),e=>this.setSelectedEmoji(e)).open()}clearSelectedEmoji(){this.setSelectedEmoji(null)}openTagModal(){!this.root||this.selectedIds.size===0||new W(this.app,this.plugin.t("enterTag"),e=>this.addTagToSelected(e)).open()}openTagFilterModal(){this.root&&new Q(this.app,this.getAllTags(),this.plugin.t("filterByTag"),e=>this.setTagFilter(e)).open()}clearTagFilter(){this.tagFilter=null,this.render()}setTagFilter(e){let t=J(e);if(!t)return;this.tagFilter=t,this.render();let i=this.positions.find(n=>k(n.node.text).tags.includes(t));i&&this.selectAndFocusNode(i.node.id)}getAllTags(){return this.root?[...new Set(B(this.root).flatMap(e=>k(e.text).tags))].sort():[]}clearSelectedTags(){if(!this.root)return;let e=this.getSelectedNodes();if(e.length!==0){this.pushHistory();for(let t of e)t.text=Pe(t.text);this.scheduleSave(),this.render()}}addTagToSelected(e){if(!this.root)return;let t=J(e);if(!t)return;let i=this.getSelectedNodes();if(i.length!==0){this.pushHistory();for(let n of i)n.text=De(n.text,t);this.scheduleSave(),this.render()}}setSelectedEmoji(e){if(!this.root)return;let t=this.getSelectedNodes();if(t.length!==0){this.pushHistory();for(let i of t){let n=re(i.text);i.text=e?`${e} ${n.label}`:n.label}this.scheduleSave(),this.render()}}editNode(e){if(!this.root)return;let t=y(this.root,e),i=this.nodesEl.querySelector(`[data-node-id="${e}"]`);if(!t||!i)return;this.selectedId=e,i.empty(),i.addClass("is-editing");let n=i.createEl("textarea",{cls:"onemind-editor"});n.value=t.text,n.focus(),n.select();let r=!1,d=()=>{if(r)return;r=!0;let a=n.value.trim()||"Untitled";this.pushHistory(),t.text=a,this.scheduleSave(),this.render()};n.addEventListener("keydown",a=>{a.key==="Enter"&&!a.shiftKey&&(a.preventDefault(),d()),a.key==="Escape"&&(a.preventDefault(),this.render())}),n.addEventListener("blur",d,{once:!0})}addChildNode(){var i,n;if(!this.root)return;let e=(n=y(this.root,(i=this.selectedId)!=null?i:this.root.id))!=null?n:this.root;this.pushHistory();let t=E("New idea",R(e,I(this.root,e.id)));e.children.push(t),e.collapsed=!1,this.selectedId=t.id,this.scheduleSave(),this.render(),window.setTimeout(()=>this.editNode(t.id),20)}addSiblingNode(){if(!this.root||!this.selectedId||this.selectedId===this.root.id){this.addChildNode();return}let e=b(this.root,this.selectedId),t=y(this.root,this.selectedId);if(!e||!t)return;this.pushHistory();let i=e.children.findIndex(r=>r.id===t.id),n=E("New idea",t.kind);e.children.splice(i+1,0,n),this.selectedId=n.id,this.scheduleSave(),this.render(),window.setTimeout(()=>this.editNode(n.id),20)}duplicateSelectedNode(){if(!this.root||!this.selectedId||this.selectedId===this.root.id)return;let e=b(this.root,this.selectedId),t=y(this.root,this.selectedId);if(!e||!t)return;this.pushHistory();let i=e.children.findIndex(r=>r.id===t.id),n=le(t);e.children.splice(i+1,0,n),this.selectedId=n.id,this.selectedIds=new Set([n.id]),this.scheduleSave(),this.render(),this.focusSelected()}moveSelectedNode(e){if(!this.root||!this.selectedId||this.selectedId===this.root.id)return;if(this.pushHistory(),!Oe(this.root,this.selectedId,e)){this.history.pop();return}this.scheduleSave(),this.render(),this.focusSelected()}deleteSelectedNode(){var i;if(!this.root)return;let e=this.getEditableSelectedIds();if(e.length===0)return;this.pushHistory();let t=this.selectedId?b(this.root,this.selectedId):null;ge(this.root,new Set(e)),this.selectedId=(i=t==null?void 0:t.id)!=null?i:this.root.id,this.selectedIds=new Set([this.selectedId]),this.scheduleSave(),this.render()}toggleCollapse(e){if(!this.root)return;let t=y(this.root,e);t&&(t.collapsed=!t.collapsed,this.render())}toggleSelectedNode(){if(!this.root)return;let e=this.getSelectedNodes();if(e.length===0)return;let t=e.some(i=>!i.collapsed&&i.children.length>0);for(let i of e)i.children.length>0&&(i.collapsed=t);this.render()}expandAllNodes(){this.root&&(j(this.root,!1),this.render())}collapseAllNodes(){this.root&&(j(this.root,!0),this.root.collapsed=!1,this.selectedId=this.root.id,this.render(),this.focusSelected())}scheduleSave(){!this.root||!this.file||(this.hasLocalUnsavedChange=!0,this.updateStatus(),this.saveTimer&&window.clearTimeout(this.saveTimer),this.saveTimer=window.setTimeout(()=>void this.saveNow(),this.plugin.settings.autoSaveDelay))}showConflictModal(){this.conflictModalOpen||(this.conflictModalOpen=!0,new q(this.app,{title:this.plugin.t("conflictTitle"),body:this.plugin.t("conflictBody"),reload:this.plugin.t("reloadMarkdown"),keep:this.plugin.t("keepEdits")},async()=>{this.conflictModalOpen=!1,await this.loadFile(),new h.Notice(this.plugin.t("reloadedExternal"))},async()=>{this.conflictModalOpen=!1,await this.saveNow(),new h.Notice(this.plugin.t("keptLocal"))},()=>{this.conflictModalOpen=!1}).open())}async saveNow(){if(!this.root||!this.file)return;let e=this.serializeCurrentMarkdown();this.isSaving=!0,this.updateStatus(),await this.app.vault.modify(this.file,e),this.lastSavedMarkdown=e,this.hasLocalUnsavedChange=!1,this.isSaving=!1,this.updateStatus()}pushHistory(){this.root&&(this.history.push(this.serializeCurrentMarkdown()),this.history.length>80&&this.history.shift(),this.future=[])}undo(){var i,n;if(!this.root||this.history.length===0)return;this.future.push(this.serializeCurrentMarkdown());let e=this.history.pop();if(!e)return;let t=A(e,(n=(i=this.file)==null?void 0:i.basename)!=null?n:"Mind map");this.root=t.root,this.documentPrefix=t.prefix,this.selectedId=this.root.id,this.selectedIds=new Set([this.root.id]),this.render(),this.saveNow()}redo(){var i,n;if(!this.root)return;let e=this.future.pop();if(!e)return;this.history.push(this.serializeCurrentMarkdown());let t=A(e,(n=(i=this.file)==null?void 0:i.basename)!=null?n:"Mind map");this.root=t.root,this.documentPrefix=t.prefix,this.selectedId=this.root.id,this.selectedIds=new Set([this.root.id]),this.render(),this.saveNow()}onKeyDown(e){if(e.target instanceof HTMLTextAreaElement)return;let t=e.ctrlKey||e.metaKey;if(t&&e.key.toLowerCase()==="z"&&e.shiftKey){e.preventDefault(),this.redo();return}if(t&&e.key.toLowerCase()==="z"){e.preventDefault(),this.undo();return}if(t&&e.key.toLowerCase()==="a"){e.preventDefault(),this.selectAllNodes();return}if(t&&e.key==="="){e.preventDefault(),this.zoomAtCenter(1.1);return}if(t&&e.key==="-"){e.preventDefault(),this.zoomAtCenter(.9);return}if(t&&e.shiftKey&&e.key.toLowerCase()==="f"){e.preventDefault(),this.fitToView();return}if(t&&e.key.toLowerCase()==="f"){e.preventDefault(),this.focusSelected();return}if(e.altKey&&e.key==="ArrowUp"){e.preventDefault(),this.moveSelectedNode("up");return}if(e.altKey&&e.key==="ArrowDown"){e.preventDefault(),this.moveSelectedNode("down");return}if(e.altKey&&e.key==="ArrowRight"){e.preventDefault(),this.moveSelectedNode("indent");return}if(e.altKey&&e.key==="ArrowLeft"){e.preventDefault(),this.moveSelectedNode("outdent");return}e.key==="Tab"?(e.preventDefault(),this.addChildNode()):e.key==="/"?(e.preventDefault(),this.focusSearch()):e.key==="Enter"?(e.preventDefault(),this.addSiblingNode()):e.key==="F2"?(e.preventDefault(),this.selectedId&&this.editNode(this.selectedId)):e.key==="Delete"||e.key==="Backspace"?(e.preventDefault(),this.deleteSelectedNode()):e.key===" "?(e.preventDefault(),this.selectedId&&this.toggleCollapse(this.selectedId)):e.key.startsWith("Arrow")&&(e.preventDefault(),this.moveSelection(e.key))}onSearchKeyDown(e){e.key==="Enter"?(e.preventDefault(),this.jumpSearch(e.shiftKey?-1:1)):e.key==="Escape"?(e.preventDefault(),this.searchInputEl.value="",this.updateSearch(""),this.contentEl.focus()):(e.key==="ArrowDown"||e.key==="ArrowUp")&&(e.preventDefault(),this.jumpSearch(e.key==="ArrowDown"?1:-1))}focusSearch(){this.searchInputEl.focus(),this.searchInputEl.select()}toggleOutline(e){this.outlineVisible=e!=null?e:!this.outlineVisible,this.renderOutline()}selectAllNodes(){this.root&&(this.selectedIds=new Set(B(this.root).map(e=>e.id)),this.selectedId=this.root.id,this.render())}async exportSvg(){!this.root||!this.file||this.positions.length===0||await this.exportSvgFromPositions(this.positions,this.file.basename,this.getExportPath("svg"))}async exportPng(){!this.root||!this.file||this.positions.length===0||await this.exportPngFromPositions(this.positions,this.file.basename,this.getExportPath("png"))}async exportSelectedSvg(){let e=this.getSelectedBranchExport();e&&await this.exportSvgFromPositions(e.positions,e.title,this.getExportPath("svg",e.slug))}async exportSelectedPng(){let e=this.getSelectedBranchExport();e&&await this.exportPngFromPositions(e.positions,e.title,this.getExportPath("png",e.slug))}async exportSvgFromPositions(e,t,i){let n=se(e,t,this.plugin.settings.showAssociationLinks);await this.writeTextFile(i,n),new h.Notice(`${this.plugin.t("exported")} ${i}`)}async exportPngFromPositions(e,t,i){let n=se(e,t,this.plugin.settings.showAssociationLinks),r=await Ie(n,this.plugin.settings.exportScale,this.plugin.settings.exportTransparentBackground),d=this.app.vault.getAbstractFileByPath(i);d instanceof h.TFile?await this.app.vault.modifyBinary(d,r):await this.app.vault.createBinary(i,r),new h.Notice(`${this.plugin.t("exported")} ${i}`)}getSelectedBranchExport(){if(!this.root||!this.selectedId)return null;let e=y(this.root,this.selectedId);if(!e)return null;let t=F(e);j(t,!1);let i=oe(t,this.plugin.settings.branchColors,this.plugin.settings.layoutDirection),n=de(e.text);return{positions:i,title:n,slug:N(e.text)||"branch"}}async copySelectedNodeLink(){if(!this.file||!this.root||!this.selectedId)return;let e=y(this.root,this.selectedId);if(!e)return;let t=this.app.vault.getName(),i=this.file.path,n=N(e.text),r=`obsidian://open?vault=${encodeURIComponent(t)}&file=${encodeURIComponent(i)}#${encodeURIComponent(n)}`;await navigator.clipboard.writeText(r),new h.Notice(this.plugin.t("copiedLink"))}async copySelectedBranchMarkdown(){if(!this.root||!this.selectedId)return;let e=y(this.root,this.selectedId);e&&(await navigator.clipboard.writeText(ne(F(e))),new h.Notice(this.plugin.t("copiedBranch")))}async pasteMarkdownAsChild(){var i,n;if(!this.root)return;let e=(n=y(this.root,(i=this.selectedId)!=null?i:this.root.id))!=null?n:this.root,t=await this.readClipboardNodes(e.kind,I(this.root,e.id)+1);t.length!==0&&(this.pushHistory(),e.children.push(...t),e.collapsed=!1,this.selectedId=t[0].id,this.selectedIds=new Set([t[0].id]),this.scheduleSave(),this.render(),new h.Notice(this.plugin.t("pastedMarkdown")))}async pasteMarkdownAsSibling(){if(!this.root||!this.selectedId||this.selectedId===this.root.id){await this.pasteMarkdownAsChild();return}let e=y(this.root,this.selectedId),t=b(this.root,this.selectedId);if(!e||!t)return;let i=await this.readClipboardNodes(e.kind,I(this.root,e.id));if(i.length===0)return;this.pushHistory();let n=t.children.findIndex(r=>r.id===e.id);t.children.splice(n+1,0,...i),this.selectedId=i[0].id,this.selectedIds=new Set([i[0].id]),this.scheduleSave(),this.render(),new h.Notice(this.plugin.t("pastedMarkdown"))}async readClipboardNodes(e,t){let i=await navigator.clipboard.readText();if(!i.trim())return new h.Notice(this.plugin.t("clipboardEmpty")),[];let n=A(i,"Clipboard"),d=(n.root.text==="Clipboard"&&n.root.children.length>0?n.root.children:[n.root]).map(a=>F(a));for(let a of d)pe(a,e,t);return d.length===0&&new h.Notice(this.plugin.t("clipboardEmpty")),d}updateSearch(e){if(this.searchQuery=e.trim().toLowerCase(),this.refreshSearchMatches(),this.activeSearchIndex=this.searchMatches.length>0?0:-1,this.activeSearchIndex>=0){let t=this.searchMatches[this.activeSearchIndex];t&&this.selectAndFocusNode(t)}else this.render();this.updateSearchCount()}refreshSearchMatches(){if(!this.root||this.searchQuery.length===0){this.searchMatches=[],this.activeSearchIndex=-1,this.updateSearchCount();return}this.searchMatches=B(this.root).filter(e=>e.text.toLowerCase().includes(this.searchQuery)).map(e=>e.id),this.activeSearchIndex>=this.searchMatches.length&&(this.activeSearchIndex=this.searchMatches.length-1),this.searchMatches.length===0&&(this.activeSearchIndex=-1),this.updateSearchCount()}updateSearchCount(){if(!this.searchCountEl)return;if(this.searchQuery.length===0){this.searchCountEl.setText("");return}let e=this.activeSearchIndex>=0?this.activeSearchIndex+1:0;this.searchCountEl.setText(`${e}/${this.searchMatches.length}`)}jumpSearch(e){if(this.searchMatches.length===0)return;this.activeSearchIndex=(this.activeSearchIndex+e+this.searchMatches.length)%this.searchMatches.length;let t=this.searchMatches[this.activeSearchIndex];t&&this.selectAndFocusNode(t),this.updateSearchCount()}moveSelection(e){if(!this.root||!this.selectedId)return;let t=y(this.root,this.selectedId);if(!t)return;if(e==="ArrowRight"){if(t.collapsed&&t.children.length>0){this.toggleCollapse(t.id);return}let d=t.children[0];d&&this.selectAndFocusNode(d.id);return}if(e==="ArrowLeft"){let d=b(this.root,t.id);t.children.length>0&&!t.collapsed?this.toggleCollapse(t.id):d&&this.selectAndFocusNode(d.id);return}let i=this.positions.slice().sort((d,a)=>d.y-a.y||d.x-a.x),n=i.findIndex(d=>d.node.id===t.id),r=i[n+(e==="ArrowDown"?1:-1)];r&&this.selectAndFocusNode(r.node.id)}expandAncestors(e){if(!this.root)return;let t=fe(this.root,e);for(let i of t.slice(0,-1))i.collapsed=!1}getSelectedNodes(){return this.root?[...this.selectedIds].map(e=>y(this.root,e)).filter(e=>!!e):[]}getEditableSelectedNodes(){return this.root?this.getSelectedNodes().filter(e=>{var t;return e.id!==((t=this.root)==null?void 0:t.id)}):[]}getEditableSelectedIds(){return this.getEditableSelectedNodes().map(e=>e.id)}onWheel(e){e.preventDefault();let t=e.deltaY>0?.92:1.08;this.scale=D(this.scale*t,.35,2.2),this.applyTransform()}onPointerDown(e){let t=e.target;t.closest(".onemind-node")||t.closest(".onemind-toolbar")||(this.panning={x:e.clientX,y:e.clientY,panX:this.panX,panY:this.panY},this.canvasEl.setPointerCapture(e.pointerId))}onPointerMove(e){if(this.dragState){this.onNodePointerMove(e);return}this.panning&&(this.panX=this.panning.panX+e.clientX-this.panning.x,this.panY=this.panning.panY+e.clientY-this.panning.y,this.applyTransform())}onPointerUp(e){if(this.dragState){this.finishNodeDrag(e);return}this.stopPanning()}stopPanning(){this.panning=null}onNodePointerDown(e,t){var r;if(e.button!==0||t.node.id===((r=this.root)==null?void 0:r.id)||e.target instanceof HTMLTextAreaElement)return;let i=e.target;if(i.closest(".onemind-collapse")||i.closest(".onemind-wikilink"))return;e.stopPropagation(),this.selectedId=t.node.id,this.selectedIds=new Set([t.node.id]),this.nodesEl.querySelectorAll(".is-selected").forEach(d=>d.removeClass("is-selected")),e.currentTarget.addClass("is-selected");let n=this.toScenePoint(e.clientX,e.clientY);this.dragState={nodeId:t.node.id,pointerId:e.pointerId,startClientX:e.clientX,startClientY:e.clientY,offsetX:n.x-t.x,offsetY:n.y-t.y,originalX:t.x,originalY:t.y,dragging:!1,el:e.currentTarget},this.dragState.el.setPointerCapture(e.pointerId),(e.pointerType==="touch"||e.pointerType==="pen")&&(this.longPressTimer=window.setTimeout(()=>{this.dragState=null,this.openNodeMenuAt(t.node.id,e.clientX,e.clientY)},560))}onNodePointerMove(e){if(!this.dragState)return;this.clearLongPressTimer();let t=e.clientX-this.dragState.startClientX,i=e.clientY-this.dragState.startClientY;if(!this.dragState.dragging&&Math.hypot(t,i)<Ee)return;this.dragState.dragging=!0,this.dragState.el.addClass("is-dragging");let n=this.toScenePoint(e.clientX,e.clientY),r=n.x-this.dragState.offsetX,d=n.y-this.dragState.offsetY;this.dragState.el.style.left=`${r}px`,this.dragState.el.style.top=`${d}px`,this.dropTarget=this.getDropTarget(n.x,n.y,this.dragState.nodeId),this.renderDropTarget()}finishNodeDrag(e){if(!this.dragState||!this.root)return;this.clearLongPressTimer();let t=this.dragState,i=t.dragging;this.dragState=null,this.clearDropTarget();try{t.el.releasePointerCapture(t.pointerId)}catch(r){}if(!i||!this.dropTarget){t.el.style.left=`${t.originalX}px`,t.el.style.top=`${t.originalY}px`,t.el.removeClass("is-dragging"),this.render();return}e.preventDefault(),this.pushHistory(),Ae(this.root,t.nodeId,this.dropTarget)?(this.selectedId=t.nodeId,this.scheduleSave()):this.history.pop(),this.dropTarget=null,this.render()}getDropTarget(e,t,i){if(!this.root)return null;let n=new Set($e(y(this.root,i)));n.add(i);let r=this.positions.filter(l=>!n.has(l.node.id)),d=r.find(l=>e>=l.x&&e<=l.x+l.width&&t>=l.y&&t<=l.y+l.height);if(d)return{mode:"child",parentId:d.node.id,index:d.node.children.length,targetId:d.node.id};let a=null,c=Number.POSITIVE_INFINITY;for(let l of r){if(l.node.id===this.root.id)continue;let f=Math.hypot(e-(l.x+l.width/2),t-(l.y+l.height/2));f<c&&(a=l,c=f)}if(!a||!a.parent)return{mode:"child",parentId:this.root.id,index:this.root.children.length,targetId:this.root.id};let v=a.parent.children.findIndex(l=>l.id===a.node.id),p=t<a.y+a.height/2?v:v+1;return{mode:"sibling",parentId:a.parent.id,index:p,targetId:a.node.id}}renderDropTarget(){var i,n;if(this.clearDropTarget(),!this.dropTarget)return;if(this.dropTarget.mode==="child"){let r=this.nodesEl.querySelector(`[data-node-id="${this.dropTarget.targetId}"]`);r==null||r.addClass("is-drop-child");return}let e=this.positions.find(r=>{var d;return r.node.id===((d=this.dropTarget)==null?void 0:d.targetId)});if(!e)return;this.dragMarkerEl=this.nodesEl.createDiv({cls:"onemind-drop-marker"});let t=this.dropTarget.index<=((n=(i=b(this.root,this.dropTarget.targetId))==null?void 0:i.children.findIndex(r=>{var d;return r.id===((d=this.dropTarget)==null?void 0:d.targetId)}))!=null?n:0);this.dragMarkerEl.style.left=`${e.x-10}px`,this.dragMarkerEl.style.top=`${t?e.y-C/2:e.y+e.height+C/2}px`,this.dragMarkerEl.style.width=`${e.width+20}px`}clearDropTarget(){var e;this.nodesEl.querySelectorAll(".is-drop-child").forEach(t=>t.removeClass("is-drop-child")),(e=this.dragMarkerEl)==null||e.remove(),this.dragMarkerEl=null}clearLongPressTimer(){this.longPressTimer&&(window.clearTimeout(this.longPressTimer),this.longPressTimer=null)}toScenePoint(e,t){let i=this.canvasEl.getBoundingClientRect();return{x:(e-i.left-this.panX)/this.scale,y:(t-i.top-this.panY)/this.scale}}serializeCurrentMarkdown(){return this.root?`${this.documentPrefix}${ne(this.root)}`:this.documentPrefix}getExportPath(e,t){var r,d,a,c;let i=(d=(r=this.file)==null?void 0:r.parent)!=null&&d.path&&this.file.parent.path!=="/"?`${this.file.parent.path}/`:"",n=t?`.${t}`:"";return`${i}${(c=(a=this.file)==null?void 0:a.basename)!=null?c:"mind-map"}.onemind${n}.${e}`}async writeTextFile(e,t){let i=this.app.vault.getAbstractFileByPath(e);i instanceof h.TFile?await this.app.vault.modify(i,t):await this.app.vault.create(e,t)}zoomAtCenter(e){this.scale=D(this.scale*e,.35,2.2),this.applyTransform()}focusSelected(){let e=this.positions.find(i=>i.node.id===this.selectedId);if(!e)return;let t=this.canvasEl.getBoundingClientRect();this.panX=t.width/2-(e.x+e.width/2)*this.scale,this.panY=t.height/2-(e.y+S/2)*this.scale,this.applyTransform()}fitToView(){if(this.positions.length===0)return;let e=ee(this.positions),t=this.canvasEl.getBoundingClientRect(),i=(t.width-120)/Math.max(e.width,1),n=(t.height-120)/Math.max(e.height,1);this.scale=D(Math.min(i,n),.35,1.4),this.panX=t.width/2-(e.minX+e.width/2)*this.scale,this.panY=t.height/2-(e.minY+e.height/2)*this.scale,this.applyTransform()}applyTransform(){this.sceneEl&&(this.sceneEl.style.transform=`translate(${this.panX}px, ${this.panY}px) scale(${this.scale})`,this.updateStatus())}updateStatus(){if(!this.statusEl)return;let e=this.root?B(this.root).length:0,t=this.positions.length,i=this.isSaving?this.plugin.t("saving"):this.hasLocalUnsavedChange?this.plugin.t("unsaved"):this.plugin.t("saved"),n=this.tagFilter?`#${this.tagFilter}`:"";this.statusEl.setText([`${t}/${e} ${this.plugin.t("nodesLabel")}`,`${this.selectedIds.size} ${this.plugin.t("selectedLabel")}`,`${this.plugin.t("zoomLabel")} ${Math.round(this.scale*100)}%`,n,i].filter(Boolean).join(" \xB7 "))}},G=class extends h.PluginSettingTab{constructor(s,e){super(s,e),this.plugin=e}display(){let{containerEl:s}=this;s.empty(),s.createEl("h2",{text:this.plugin.t("settingsTitle")}),new h.Setting(s).setName(this.plugin.t("language")).setDesc(this.plugin.t("languageDesc")).addDropdown(t=>{t.addOption("zh",this.plugin.t("chinese")).addOption("en",this.plugin.t("english")).setValue(this.plugin.settings.language).onChange(async i=>{this.plugin.settings.language=i,await this.plugin.saveSettings(),this.plugin.refreshOpenViews(),this.display()})}),new h.Setting(s).setName(this.plugin.t("autoSaveDelay")).setDesc(this.plugin.t("autoSaveDelayDesc")).addText(t=>{t.setPlaceholder("300").setValue(String(this.plugin.settings.autoSaveDelay)).onChange(async i=>{let n=Number.parseInt(i,10);this.plugin.settings.autoSaveDelay=Number.isFinite(n)?D(n,0,5e3):$.autoSaveDelay,await this.plugin.saveSettings(),this.plugin.refreshOpenViews()})}),new h.Setting(s).setName(this.plugin.t("defaultExpandDepth")).setDesc(this.plugin.t("defaultExpandDepthDesc")).addSlider(t=>{t.setLimits(1,99,1).setDynamicTooltip().setValue(this.plugin.settings.defaultExpandDepth).onChange(async i=>{this.plugin.settings.defaultExpandDepth=i,await this.plugin.saveSettings(),this.plugin.refreshOpenViews()})}),new h.Setting(s).setName(this.plugin.t("layoutDirection")).setDesc(this.plugin.t("layoutDirectionDesc")).addDropdown(t=>{t.addOption("right",this.plugin.t("horizontalRight")).addOption("balanced",this.plugin.t("balanced")).setValue(this.plugin.settings.layoutDirection).onChange(async i=>{this.plugin.settings.layoutDirection=i,await this.plugin.saveSettings(),this.plugin.refreshOpenViews()})}),new h.Setting(s).setName(this.plugin.t("layoutAnimation")).setDesc(this.plugin.t("layoutAnimationDesc")).addToggle(t=>{t.setValue(this.plugin.settings.animations).onChange(async i=>{this.plugin.settings.animations=i,await this.plugin.saveSettings(),this.plugin.refreshOpenViews()})}),new h.Setting(s).setName(this.plugin.t("showAssociationLinks")).setDesc(this.plugin.t("showAssociationLinksDesc")).addToggle(t=>{t.setValue(this.plugin.settings.showAssociationLinks).onChange(async i=>{this.plugin.settings.showAssociationLinks=i,await this.plugin.saveSettings(),this.plugin.refreshOpenViews()})}),new h.Setting(s).setName(this.plugin.t("branchColors")).setDesc(this.plugin.t("branchColorsDesc")).addTextArea(t=>{t.setValue(this.plugin.settings.branchColors.join(", ")).onChange(async i=>{let n=i.split(",").map(r=>r.trim()).filter(Boolean);this.plugin.settings.branchColors=n.length>0?n:$.branchColors,await this.plugin.saveSettings(),this.plugin.refreshOpenViews()}),t.inputEl.rows=2});let e=s.createDiv({cls:"onemind-settings-palette"});this.plugin.settings.branchColors.forEach((t,i)=>{new h.Setting(e).setName(`${this.plugin.t("branchColors")} ${i+1}`).addColorPicker(n=>{n.setValue(t).onChange(async r=>{this.plugin.settings.branchColors[i]=r,await this.plugin.saveSettings(),this.plugin.refreshOpenViews()})})}),new h.Setting(s).setName(this.plugin.t("resetBranchColors")).addButton(t=>{t.setButtonText(this.plugin.t("resetBranchColors")).onClick(async()=>{this.plugin.settings.branchColors=[...$.branchColors],await this.plugin.saveSettings(),this.plugin.refreshOpenViews(),this.display()})}),new h.Setting(s).setName(this.plugin.t("pngScale")).setDesc(this.plugin.t("pngScaleDesc")).addSlider(t=>{t.setLimits(1,4,1).setDynamicTooltip().setValue(this.plugin.settings.exportScale).onChange(async i=>{this.plugin.settings.exportScale=i,await this.plugin.saveSettings()})}),new h.Setting(s).setName(this.plugin.t("transparentPng")).setDesc(this.plugin.t("transparentPngDesc")).addToggle(t=>{t.setValue(this.plugin.settings.exportTransparentBackground).onChange(async i=>{this.plugin.settings.exportTransparentBackground=i,await this.plugin.saveSettings()})})}},_=class extends h.SuggestModal{constructor(s,e,t){super(s),this.onChoose=t,this.setPlaceholder(e)}getSuggestions(s){let e=s.trim().toLowerCase();return e?te.filter(t=>t.includes(e)):te}renderSuggestion(s,e){e.createSpan({cls:"onemind-emoji-suggestion",text:s})}onChooseSuggestion(s){this.onChoose(s)}},W=class extends 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h.Modal{constructor(s,e,t,i,n){super(s),this.labels=e,this.onReload=t,this.onKeep=i,this.onCloseCallback=n}onOpen(){let{contentEl:s}=this;s.empty(),s.createEl("h2",{text:this.labels.title}),s.createEl("p",{text:this.labels.body});let e=s.createDiv({cls:"onemind-modal-actions"});e.createEl("button",{text:this.labels.reload}).onClickEvent(async()=>{this.close(),await this.onReload()}),e.createEl("button",{cls:"mod-cta",text:this.labels.keep}).onClickEvent(async()=>{this.close(),await this.onKeep()})}onClose(){this.contentEl.empty(),this.onCloseCallback()}};function A(o,s){let e=o.split(/\r?\n/),t=0;if(e[0]==="---"){let a=e.findIndex((c,u)=>u>0&&c==="---");a>0&&(t=a+1)}for(;t<e.length&&e[t].trim()==="";)t+=1;let i=e.findIndex((a,c)=>c<t?!1:/^(#{1,6})\s+(.+?)\s*$/.test(a)||/^(\s*)[-*+]\s+(.+?)\s*$/.test(a)),n=i===-1?e.length:i,r=n>0?`${e.slice(0,n).join(`
+`).replace(/\s*$/,"")}
+
+`:"",d=e.slice(n).join(`
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+`)}
+`}function se(o,s,e=!0){let t=ee(o),i=80,n=Math.ceil(t.width+i*2),r=Math.ceil(t.height+i*2),d=t.minX-i,a=t.minY-i,c=o.filter(p=>p.parent).map(p=>{let l=o.find(P=>P.node===p.parent);if(!l)return"";let f=p.x>=l.x,w=f?l.x+l.width:l.x,g=l.y+S/2,m=f?p.x:p.x+p.width,x=p.y+S/2,M=Math.max(60,Math.abs(m-w)*.45)*(f?1:-1);return`<path d="M ${w} ${g} C ${w+M} ${g}, ${m-M} ${x}, ${m} ${x}" stroke="${O(p.color)}" fill="none" stroke-width="1.5" stroke-linecap="round" opacity="0.78"/>`}).join(`
+`),u=e?Ce(o):"",v=o.map(p=>{let l=p.depth===0,f=p.width,w=l?18:14,g=l?700:400,m=k(p.node.text),x=[m.emoji?`${m.emoji} ${H(m.displayLabel)}`:H(m.displayLabel),m.tags.map(z=>`#${z}`).join(" ")].filter(Boolean).join(" "),M=Le(x,l?20:22),P=M.map((z,me)=>{let ve=me===0?0:w+3;return`<tspan x="${p.x+14}" dy="${ve}">${O(z)}</tspan>`}).join(""),Y=Math.max(S,24+M.length*(w+3));return[`<rect x="${p.x}" y="${p.y}" width="${f}" height="${Y}" rx="8" fill="var(--onemind-node-bg, #ffffff)" stroke="${O(p.color)}" stroke-width="1.5"/>`,`<text x="${p.x+14}" y="${p.y+24}" font-size="${w}" font-weight="${g}" fill="var(--onemind-text, #1f2937)" font-family="-apple-system, BlinkMacSystemFont, Segoe UI, sans-serif">${P}</text>`].join(`
+`)}).join(`
+`);return['<?xml version="1.0" encoding="UTF-8"?>',`<svg xmlns="http://www.w3.org/2000/svg" width="${n}" height="${r}" viewBox="${d} ${a} ${n} ${r}" role="img" aria-label="${O(s)}">`,"<style>:root{--onemind-node-bg:#fff;--onemind-text:#1f2937}@media(prefers-color-scheme:dark){:root{--onemind-node-bg:#1f1f1f;--onemind-text:#e5e7eb}} rect{filter:drop-shadow(0 6px 14px rgba(15,23,42,.10))}</style>",c,u,v,"</svg>"].join(`
+`)}function Ce(o){let s=new Map;for(let t of o)s.set(N(t.node.text),t);let e=new Set;return o.flatMap(t=>ae(t.node.text,null).map(i=>{let n=s.get(i);if(!n||n.node.id===t.node.id)return"";let r=[t.node.id,n.node.id].sort().join(":");if(e.has(r))return"";e.add(r);let d=t.x+t.width/2,a=t.y+S/2,c=n.x+n.width/2,u=n.y+S/2,v=(d+c)/2,p=Math.max(80,Math.abs(u-a)*.35),l=Math.min(a,u)-p;return`<path d="M ${d} ${a} Q ${v} ${l}, ${c} ${u}" stroke="var(--onemind-association, #94a3b8)" fill="none" stroke-width="1.2" stroke-linecap="round" stroke-dasharray="5 5" opacity="0.72"/>`})).filter(Boolean).join(`
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diff --git a/main.ts b/main.ts
new file mode 100644
index 0000000..f166250
--- /dev/null
+++ b/main.ts
@@ -0,0 +1,2711 @@
+import {
+  App,
+  ItemView,
+  Menu,
+  MarkdownView,
+  Modal,
+  Notice,
+  Plugin,
+  PluginSettingTab,
+  Setting,
+  SuggestModal,
+  TFile,
+  ViewStateResult,
+  WorkspaceLeaf,
+  setIcon
+} from "obsidian";
+
+const VIEW_TYPE_ONEMIND = "onemind-view";
+
+type NodeKind = "heading" | "list";
+type LayoutDirection = "right" | "balanced";
+type OneMindLanguage = "en" | "zh";
+
+interface MindNode {
+  id: string;
+  text: string;
+  kind: NodeKind;
+  children: MindNode[];
+  collapsed: boolean;
+}
+
+interface PositionedNode {
+  node: MindNode;
+  parent: MindNode | null;
+  depth: number;
+  x: number;
+  y: number;
+  width: number;
+  height: number;
+  color: string;
+  side: -1 | 1;
+}
+
+interface OneMindSettings {
+  autoSaveDelay: number;
+  branchColors: string[];
+  defaultExpandDepth: number;
+  animations: boolean;
+  layoutDirection: LayoutDirection;
+  exportScale: number;
+  exportTransparentBackground: boolean;
+  language: OneMindLanguage;
+  showAssociationLinks: boolean;
+}
+
+interface MindDocument {
+  root: MindNode;
+  prefix: string;
+}
+
+interface OneMindViewState {
+  [key: string]: unknown;
+  file?: string;
+  node?: string;
+  heading?: string;
+}
+
+interface ParsedEmojiText {
+  emoji: string | null;
+  label: string;
+}
+
+interface ParsedNodeText extends ParsedEmojiText {
+  tags: string[];
+  displayLabel: string;
+}
+
+const EMOJI_OPTIONS = [
+  "💡", "✅", "🔥", "⭐", "🎯", "🚀", "📌", "📎",
+  "🧠", "📝", "📚", "🔍", "⚡", "❤️", "❓", "⚠️",
+  "🌱", "🏁", "🔧", "💬", "🎨", "🧩", "📊", "🔗"
+];
+
+const DEFAULT_SETTINGS: OneMindSettings = {
+  autoSaveDelay: 300,
+  branchColors: ["#5b8def", "#45b36b", "#e89b3c", "#9b72e7", "#df6f9f"],
+  defaultExpandDepth: 99,
+  animations: true,
+  layoutDirection: "right",
+  exportScale: 2,
+  exportTransparentBackground: false,
+  language: "zh",
+  showAssociationLinks: true
+};
+
+const I18N = {
+  en: {
+    openRibbon: "Open OneMind",
+    openMindMap: "Open current note as mind map",
+    returnMarkdown: "Return to Markdown editor",
+    addChild: "Add child node",
+    addSibling: "Add sibling node",
+    duplicateNode: "Duplicate selected node",
+    moveUp: "Move selected node up",
+    moveDown: "Move selected node down",
+    indentNode: "Indent selected node",
+    outdentNode: "Outdent selected node",
+    editNode: "Edit selected node",
+    deleteNode: "Delete selected node",
+    toggleNode: "Toggle selected node",
+    setEmoji: "Set selected node emoji",
+    clearEmoji: "Clear selected node emoji",
+    addTag: "Add tag to selected nodes",
+    clearTags: "Clear tags from selected nodes",
+    copyBranch: "Copy selected branch as Markdown",
+    pasteChild: "Paste Markdown as child nodes",
+    pasteSibling: "Paste Markdown as sibling nodes",
+    selectAll: "Select all nodes",
+    expandAll: "Expand all nodes",
+    collapseAll: "Collapse all nodes",
+    fitMap: "Fit mind map to view",
+    focusNode: "Focus selected node",
+    searchNodes: "Search nodes",
+    filterByTag: "Filter by tag",
+    clearTagFilter: "Clear tag filter",
+    toggleOutline: "Toggle outline",
+    copyNodeLink: "Copy selected node link",
+    exportSvg: "Export mind map as SVG",
+    exportPng: "Export mind map as PNG",
+    exportSelectedSvg: "Export selected branch as SVG",
+    exportSelectedPng: "Export selected branch as PNG",
+    markdown: "Markdown",
+    addChildShort: "Add child",
+    addSiblingShort: "Add sibling",
+    duplicateShort: "Duplicate",
+    setEmojiIcon: "Set emoji icon",
+    addTagShort: "Add tag",
+    deleteShort: "Delete",
+    fitShort: "Fit",
+    exportSvgShort: "Export SVG",
+    exportPngShort: "Export PNG",
+    copyLinkShort: "Copy node link",
+    outline: "Outline",
+    hideOutline: "Hide outline",
+    openMarkdownFirst: "Open a Markdown note first.",
+    emptyView: "Open a Markdown note to use OneMind.",
+    reloadedExternal: "OneMind reloaded the external Markdown changes.",
+    keptLocal: "OneMind kept the mind map edits and wrote them to Markdown.",
+    exported: "Exported",
+    copiedLink: "Copied OneMind node link.",
+    copiedBranch: "Copied branch Markdown.",
+    pastedMarkdown: "Pasted Markdown into OneMind.",
+    clipboardEmpty: "Clipboard does not contain Markdown nodes.",
+    tagFilterActive: "Tag filter",
+    chooseEmoji: "Choose an emoji icon",
+    enterTag: "Enter tag name",
+    conflictTitle: "OneMind conflict",
+    conflictBody: "This note changed on disk while the mind map has unsaved local edits. Choose which version should win.",
+    reloadMarkdown: "Reload Markdown",
+    keepEdits: "Keep OneMind edits",
+    settingsTitle: "OneMind",
+    language: "Language",
+    languageDesc: "Choose the language used by OneMind UI.",
+    english: "English",
+    chinese: "中文",
+    autoSaveDelay: "Auto-save delay",
+    autoSaveDelayDesc: "Milliseconds to wait after a mind map edit before writing Markdown.",
+    defaultExpandDepth: "Default expand depth",
+    defaultExpandDepthDesc: "How many levels are expanded when a note opens. Use 99 for all.",
+    layoutDirection: "Layout direction",
+    layoutDirectionDesc: "Choose a classic right-facing tree or a balanced map with branches on both sides.",
+    horizontalRight: "Horizontal right",
+    balanced: "Balanced",
+    layoutAnimation: "Layout animation",
+    layoutAnimationDesc: "Animate node movement after edits.",
+    branchColors: "Branch colors",
+    branchColorsDesc: "Comma-separated CSS colors used for first-level branches.",
+    resetBranchColors: "Reset branch colors",
+    pngScale: "PNG export scale",
+    pngScaleDesc: "Resolution multiplier used when exporting PNG files.",
+    transparentPng: "Transparent PNG background",
+    transparentPngDesc: "Leave PNG exports transparent instead of filling the Obsidian background color.",
+    showAssociationLinks: "Show association links",
+    showAssociationLinksDesc: "Draw dashed cross-branch links for local wikilinks like [[#Heading]] or [[Heading]].",
+    saved: "Saved",
+    unsaved: "Unsaved",
+    saving: "Saving",
+    nodesLabel: "nodes",
+    selectedLabel: "selected",
+    zoomLabel: "zoom"
+  },
+  zh: {
+    openRibbon: "打开 OneMind",
+    openMindMap: "以思维导图打开当前笔记",
+    returnMarkdown: "返回 Markdown 编辑器",
+    addChild: "添加子节点",
+    addSibling: "添加同级节点",
+    duplicateNode: "复制选中节点",
+    moveUp: "上移选中节点",
+    moveDown: "下移选中节点",
+    indentNode: "缩进选中节点",
+    outdentNode: "取消缩进选中节点",
+    editNode: "编辑选中节点",
+    deleteNode: "删除选中节点",
+    toggleNode: "折叠/展开选中节点",
+    setEmoji: "设置选中节点 Emoji",
+    clearEmoji: "清除选中节点 Emoji",
+    addTag: "给选中节点添加标签",
+    clearTags: "清除选中节点标签",
+    copyBranch: "复制选中分支为 Markdown",
+    pasteChild: "粘贴 Markdown 为子节点",
+    pasteSibling: "粘贴 Markdown 为同级节点",
+    selectAll: "选择全部节点",
+    expandAll: "展开全部节点",
+    collapseAll: "折叠全部节点",
+    fitMap: "适应窗口",
+    focusNode: "聚焦选中节点",
+    searchNodes: "搜索节点",
+    filterByTag: "按标签过滤",
+    clearTagFilter: "清除标签过滤",
+    toggleOutline: "显示/隐藏大纲",
+    copyNodeLink: "复制选中节点链接",
+    exportSvg: "导出思维导图为 SVG",
+    exportPng: "导出思维导图为 PNG",
+    exportSelectedSvg: "导出选中分支为 SVG",
+    exportSelectedPng: "导出选中分支为 PNG",
+    markdown: "Markdown",
+    addChildShort: "添加子节点",
+    addSiblingShort: "添加同级",
+    duplicateShort: "复制节点",
+    setEmojiIcon: "设置 Emoji 图标",
+    addTagShort: "添加标签",
+    deleteShort: "删除",
+    fitShort: "适应窗口",
+    exportSvgShort: "导出 SVG",
+    exportPngShort: "导出 PNG",
+    copyLinkShort: "复制节点链接",
+    outline: "大纲",
+    hideOutline: "隐藏大纲",
+    openMarkdownFirst: "请先打开一篇 Markdown 笔记。",
+    emptyView: "打开 Markdown 笔记后即可使用 OneMind。",
+    reloadedExternal: "OneMind 已重新加载外部 Markdown 修改。",
+    keptLocal: "OneMind 已保留导图编辑并写回 Markdown。",
+    exported: "已导出",
+    copiedLink: "已复制 OneMind 节点链接。",
+    copiedBranch: "已复制分支 Markdown。",
+    pastedMarkdown: "已将 Markdown 粘贴到 OneMind。",
+    clipboardEmpty: "剪贴板里没有可用的 Markdown 节点。",
+    tagFilterActive: "标签过滤",
+    chooseEmoji: "选择 Emoji 图标",
+    enterTag: "输入标签名",
+    conflictTitle: "OneMind 冲突",
+    conflictBody: "这篇笔记在磁盘上发生了变化，同时思维导图里还有未保存编辑。请选择要保留的版本。",
+    reloadMarkdown: "重新加载 Markdown",
+    keepEdits: "保留 OneMind 编辑",
+    settingsTitle: "OneMind",
+    language: "语言",
+    languageDesc: "选择 OneMind 界面语言。",
+    english: "English",
+    chinese: "中文",
+    autoSaveDelay: "自动保存延迟",
+    autoSaveDelayDesc: "导图编辑后等待多少毫秒再写回 Markdown。",
+    defaultExpandDepth: "默认展开深度",
+    defaultExpandDepthDesc: "打开笔记时默认展开的层级。99 表示全部展开。",
+    layoutDirection: "布局方向",
+    layoutDirectionDesc: "选择经典向右树形布局，或根节点居中的双向平衡布局。",
+    horizontalRight: "水平向右",
+    balanced: "双向平衡",
+    layoutAnimation: "布局动画",
+    layoutAnimationDesc: "编辑后为节点移动添加动画。",
+    branchColors: "分支颜色",
+    branchColorsDesc: "一级分支使用的 CSS 颜色，使用英文逗号分隔。",
+    resetBranchColors: "重置分支颜色",
+    pngScale: "PNG 导出倍率",
+    pngScaleDesc: "导出 PNG 文件时使用的分辨率倍率。",
+    transparentPng: "透明 PNG 背景",
+    transparentPngDesc: "导出 PNG 时保留透明背景，而不是填充 Obsidian 背景色。",
+    showAssociationLinks: "显示关联线",
+    showAssociationLinksDesc: "为 [[#标题]] 或 [[标题]] 这类本地 wikilink 绘制跨分支虚线关联。",
+    saved: "已保存",
+    unsaved: "未保存",
+    saving: "保存中",
+    nodesLabel: "节点",
+    selectedLabel: "已选",
+    zoomLabel: "缩放"
+  }
+} as const;
+
+type I18nKey = keyof typeof I18N.en;
+
+const NODE_WIDTH = 180;
+const NODE_HEIGHT = 42;
+const LEVEL_GAP = 230;
+const ROW_GAP = 18;
+const DRAG_THRESHOLD = 4;
+
+interface DragState {
+  nodeId: string;
+  pointerId: number;
+  startClientX: number;
+  startClientY: number;
+  offsetX: number;
+  offsetY: number;
+  originalX: number;
+  originalY: number;
+  dragging: boolean;
+  el: HTMLElement;
+}
+
+interface DropTarget {
+  mode: "child" | "sibling";
+  parentId: string;
+  index: number;
+  targetId: string;
+}
+
+export default class OneMindPlugin extends Plugin {
+  settings: OneMindSettings = DEFAULT_SETTINGS;
+
+  async onload(): Promise<void> {
+    this.settings = Object.assign({}, DEFAULT_SETTINGS, await this.loadData());
+
+    this.registerView(
+      VIEW_TYPE_ONEMIND,
+      (leaf) => new OneMindView(leaf, this)
+    );
+
+    this.addRibbonIcon("git-fork", this.t("openRibbon"), () => {
+      void this.openMindMap();
+    });
+
+    this.addCommand({
+      id: "open-onemind-view",
+      name: this.t("openMindMap"),
+      checkCallback: (checking) => {
+        const file = this.getActiveMarkdownFile();
+        if (!file) return false;
+        if (!checking) void this.openMindMap(file, this.getActiveHeadingAnchor());
+        return true;
+      }
+    });
+
+    this.addCommand({
+      id: "return-to-markdown",
+      name: this.t("returnMarkdown"),
+      callback: () => {
+        const view = this.app.workspace.getActiveViewOfType(OneMindView);
+        if (view) void view.openMarkdown();
+      }
+    });
+
+    this.addMindMapCommand("add-child-node", this.t("addChild"), (view) => view.addChildNode());
+    this.addMindMapCommand("add-sibling-node", this.t("addSibling"), (view) => view.addSiblingNode());
+    this.addMindMapCommand("duplicate-node", this.t("duplicateNode"), (view) => view.duplicateSelectedNode());
+    this.addMindMapCommand("move-node-up", this.t("moveUp"), (view) => view.moveSelectedNode("up"));
+    this.addMindMapCommand("move-node-down", this.t("moveDown"), (view) => view.moveSelectedNode("down"));
+    this.addMindMapCommand("indent-node", this.t("indentNode"), (view) => view.moveSelectedNode("indent"));
+    this.addMindMapCommand("outdent-node", this.t("outdentNode"), (view) => view.moveSelectedNode("outdent"));
+    this.addMindMapCommand("edit-selected-node", this.t("editNode"), (view) => view.editSelectedNode());
+    this.addMindMapCommand("delete-selected-node", this.t("deleteNode"), (view) => view.deleteSelectedNode());
+    this.addMindMapCommand("toggle-selected-node", this.t("toggleNode"), (view) => view.toggleSelectedNode());
+    this.addMindMapCommand("set-node-emoji", this.t("setEmoji"), (view) => view.openEmojiPicker());
+    this.addMindMapCommand("clear-node-emoji", this.t("clearEmoji"), (view) => view.clearSelectedEmoji());
+    this.addMindMapCommand("add-node-tag", this.t("addTag"), (view) => view.openTagModal());
+    this.addMindMapCommand("clear-node-tags", this.t("clearTags"), (view) => view.clearSelectedTags());
+    this.addMindMapCommand("select-all-nodes", this.t("selectAll"), (view) => view.selectAllNodes());
+    this.addMindMapCommand("expand-all-nodes", this.t("expandAll"), (view) => view.expandAllNodes());
+    this.addMindMapCommand("collapse-all-nodes", this.t("collapseAll"), (view) => view.collapseAllNodes());
+    this.addMindMapCommand("fit-mind-map", this.t("fitMap"), (view) => view.fitToView());
+    this.addMindMapCommand("focus-selected-node", this.t("focusNode"), (view) => view.focusSelected());
+    this.addMindMapCommand("search-nodes", this.t("searchNodes"), (view) => view.focusSearch());
+    this.addMindMapCommand("filter-by-tag", this.t("filterByTag"), (view) => view.openTagFilterModal());
+    this.addMindMapCommand("clear-tag-filter", this.t("clearTagFilter"), (view) => view.clearTagFilter());
+    this.addMindMapCommand("toggle-outline", this.t("toggleOutline"), (view) => view.toggleOutline());
+    this.addMindMapCommand("copy-node-link", this.t("copyNodeLink"), (view) => void view.copySelectedNodeLink());
+    this.addMindMapCommand("copy-branch-markdown", this.t("copyBranch"), (view) => void view.copySelectedBranchMarkdown());
+    this.addMindMapCommand("paste-markdown-child", this.t("pasteChild"), (view) => void view.pasteMarkdownAsChild());
+    this.addMindMapCommand("paste-markdown-sibling", this.t("pasteSibling"), (view) => void view.pasteMarkdownAsSibling());
+    this.addMindMapCommand("export-svg", this.t("exportSvg"), (view) => void view.exportSvg());
+    this.addMindMapCommand("export-png", this.t("exportPng"), (view) => void view.exportPng());
+    this.addMindMapCommand("export-selected-svg", this.t("exportSelectedSvg"), (view) => void view.exportSelectedSvg());
+    this.addMindMapCommand("export-selected-png", this.t("exportSelectedPng"), (view) => void view.exportSelectedPng());
+
+    this.addSettingTab(new OneMindSettingTab(this.app, this));
+  }
+
+  onunload(): void {
+    this.app.workspace.detachLeavesOfType(VIEW_TYPE_ONEMIND);
+  }
+
+  async saveSettings(): Promise<void> {
+    await this.saveData(this.settings);
+  }
+
+  t(key: I18nKey): string {
+    return I18N[this.settings.language]?.[key] ?? I18N.en[key];
+  }
+
+  refreshOpenViews(): void {
+    this.app.workspace.getLeavesOfType(VIEW_TYPE_ONEMIND).forEach((leaf) => {
+      const view = leaf.view;
+      if (view instanceof OneMindView) view.applySettings();
+    });
+  }
+
+  private addMindMapCommand(id: string, name: string, action: (view: OneMindView) => void): void {
+    this.addCommand({
+      id,
+      name,
+      checkCallback: (checking) => {
+        const view = this.app.workspace.getActiveViewOfType(OneMindView);
+        if (!view) return false;
+        if (!checking) action(view);
+        return true;
+      }
+    });
+  }
+
+  private getActiveMarkdownFile(): TFile | null {
+    const view = this.app.workspace.getActiveViewOfType(MarkdownView);
+    return view?.file ?? null;
+  }
+
+  private getActiveHeadingAnchor(): string | null {
+    const view = this.app.workspace.getActiveViewOfType(MarkdownView);
+    if (!view) return null;
+    const cursor = view.editor.getCursor();
+    for (let line = cursor.line; line >= 0; line -= 1) {
+      const match = /^(#{1,6})\s+(.+?)\s*$/.exec(view.editor.getLine(line));
+      if (match) return slugifyNodeText(match[2]);
+    }
+    return null;
+  }
+
+  async openMindMap(file = this.getActiveMarkdownFile(), heading: string | null = null): Promise<void> {
+    if (!file) {
+      new Notice(this.t("openMarkdownFirst"));
+      return;
+    }
+
+    const leaf = this.app.workspace.getLeaf(false);
+    await leaf.setViewState({
+      type: VIEW_TYPE_ONEMIND,
+      state: { file: file.path, heading: heading ?? undefined },
+      active: true
+    });
+  }
+}
+
+class OneMindView extends ItemView {
+  private plugin: OneMindPlugin;
+  private file: TFile | null = null;
+  private root: MindNode | null = null;
+  private canvasEl!: HTMLDivElement;
+  private sceneEl!: HTMLDivElement;
+  private svgEl!: SVGSVGElement;
+  private nodesEl!: HTMLDivElement;
+  private outlineEl!: HTMLDivElement;
+  private outlineListEl!: HTMLDivElement;
+  private statusEl!: HTMLDivElement;
+  private searchInputEl!: HTMLInputElement;
+  private searchCountEl!: HTMLSpanElement;
+  private selectedId: string | null = null;
+  private selectedIds = new Set<string>();
+  private positions: PositionedNode[] = [];
+  private searchQuery = "";
+  private searchMatches: string[] = [];
+  private activeSearchIndex = -1;
+  private saveTimer: number | null = null;
+  private isSaving = false;
+  private history: string[] = [];
+  private future: string[] = [];
+  private scale = 1;
+  private panX = 80;
+  private panY = 80;
+  private panning: { x: number; y: number; panX: number; panY: number } | null = null;
+  private dragState: DragState | null = null;
+  private longPressTimer: number | null = null;
+  private dropTarget: DropTarget | null = null;
+  private dragMarkerEl: HTMLDivElement | null = null;
+  private lastSavedMarkdown = "";
+  private hasLocalUnsavedChange = false;
+  private documentPrefix = "";
+  private conflictModalOpen = false;
+  private pendingFocus: { node?: string; heading?: string } | null = null;
+  private outlineVisible = true;
+  private tagFilter: string | null = null;
+
+  constructor(leaf: WorkspaceLeaf, plugin: OneMindPlugin) {
+    super(leaf);
+    this.plugin = plugin;
+  }
+
+  getViewType(): string {
+    return VIEW_TYPE_ONEMIND;
+  }
+
+  getDisplayText(): string {
+    return this.file ? `OneMind: ${this.file.basename}` : "OneMind";
+  }
+
+  getIcon(): string {
+    return "git-fork";
+  }
+
+  async setState(state: OneMindViewState, result: ViewStateResult): Promise<void> {
+    await super.setState(state, result);
+    this.file = state.file ? this.app.vault.getAbstractFileByPath(state.file) as TFile : null;
+    this.pendingFocus = { node: state.node, heading: state.heading };
+    await this.loadFile();
+  }
+
+  getState(): OneMindViewState {
+    return { file: this.file?.path ?? "", node: this.selectedId ?? undefined };
+  }
+
+  async onOpen(): Promise<void> {
+    this.contentEl.empty();
+    this.contentEl.addClass("onemind-view");
+    this.contentEl.toggleClass("is-animation-disabled", !this.plugin.settings.animations);
+
+    const toolbar = this.contentEl.createDiv({ cls: "onemind-toolbar" });
+    this.addIconButton(toolbar, "file-text", this.plugin.t("markdown"), () => void this.openMarkdown());
+    this.addIconButton(toolbar, "plus", this.plugin.t("addChildShort"), () => this.addChildNode());
+    this.addIconButton(toolbar, "corner-down-right", this.plugin.t("addSiblingShort"), () => this.addSiblingNode());
+    this.addIconButton(toolbar, "copy-plus", this.plugin.t("duplicateShort"), () => this.duplicateSelectedNode());
+    this.addIconButton(toolbar, "smile", this.plugin.t("setEmojiIcon"), () => this.openEmojiPicker());
+    this.addIconButton(toolbar, "tag", this.plugin.t("addTagShort"), () => this.openTagModal());
+    this.addIconButton(toolbar, "filter", this.plugin.t("filterByTag"), () => this.openTagFilterModal());
+    this.addIconButton(toolbar, "trash-2", this.plugin.t("deleteShort"), () => this.deleteSelectedNode());
+    this.addIconButton(toolbar, "unfold-vertical", this.plugin.t("expandAll"), () => this.expandAllNodes());
+    this.addIconButton(toolbar, "fold-vertical", this.plugin.t("collapseAll"), () => this.collapseAllNodes());
+    this.addIconButton(toolbar, "minimize", this.plugin.t("fitShort"), () => this.fitToView());
+    this.addIconButton(toolbar, "download", this.plugin.t("exportSvgShort"), () => void this.exportSvg());
+    this.addIconButton(toolbar, "image", this.plugin.t("exportPngShort"), () => void this.exportPng());
+    this.addIconButton(toolbar, "link", this.plugin.t("copyLinkShort"), () => void this.copySelectedNodeLink());
+    this.addIconButton(toolbar, "copy", this.plugin.t("copyBranch"), () => void this.copySelectedBranchMarkdown());
+    this.addIconButton(toolbar, "list-tree", this.plugin.t("toggleOutline"), () => this.toggleOutline());
+    this.addIconButton(toolbar, "search", this.plugin.t("searchNodes"), () => this.searchInputEl.focus());
+    const searchWrap = toolbar.createDiv({ cls: "onemind-search" });
+    this.searchInputEl = searchWrap.createEl("input", {
+      cls: "onemind-search-input",
+      attr: { type: "search", placeholder: this.plugin.t("searchNodes"), "aria-label": this.plugin.t("searchNodes") }
+    });
+    this.searchCountEl = searchWrap.createEl("span", { cls: "onemind-search-count" });
+    this.searchInputEl.addEventListener("input", () => this.updateSearch(this.searchInputEl.value));
+    this.searchInputEl.addEventListener("keydown", (event) => this.onSearchKeyDown(event));
+
+    this.canvasEl = this.contentEl.createDiv({ cls: "onemind-canvas" });
+    this.sceneEl = this.canvasEl.createDiv({ cls: "onemind-scene" });
+    this.svgEl = createSvg("svg");
+    this.svgEl.addClass("onemind-links");
+    this.nodesEl = this.sceneEl.createDiv({ cls: "onemind-nodes" });
+    this.sceneEl.prepend(this.svgEl);
+    this.outlineEl = this.canvasEl.createDiv({ cls: "onemind-outline" });
+    const outlineHeader = this.outlineEl.createDiv({ cls: "onemind-outline-header" });
+    outlineHeader.createSpan({ text: this.plugin.t("outline") });
+    this.addIconButton(outlineHeader, "x", this.plugin.t("hideOutline"), () => this.toggleOutline(false));
+    this.outlineListEl = this.outlineEl.createDiv({ cls: "onemind-outline-list" });
+    this.statusEl = this.canvasEl.createDiv({ cls: "onemind-status" });
+
+    this.registerDomEvent(this.canvasEl, "wheel", (event) => this.onWheel(event));
+    this.registerDomEvent(this.canvasEl, "pointerdown", (event) => this.onPointerDown(event));
+    this.registerDomEvent(window, "pointermove", (event) => this.onPointerMove(event));
+    this.registerDomEvent(window, "pointerup", (event) => this.onPointerUp(event));
+    this.registerDomEvent(this.contentEl, "keydown", (event) => this.onKeyDown(event));
+
+    this.registerEvent(this.app.vault.on("modify", async (file) => {
+      if (!this.file || file.path !== this.file.path || this.isSaving) return;
+      if (this.hasLocalUnsavedChange) {
+        this.showConflictModal();
+        return;
+      }
+      void this.loadFile();
+    }));
+
+    await this.loadFile();
+  }
+
+  async openMarkdown(): Promise<void> {
+    if (!this.file) return;
+    await this.leaf.setViewState({
+      type: "markdown",
+      state: { file: this.file.path },
+      active: true
+    });
+  }
+
+  applySettings(): void {
+    this.contentEl.toggleClass("is-animation-disabled", !this.plugin.settings.animations);
+    this.render();
+  }
+
+  private addIconButton(parent: HTMLElement, icon: string, title: string, action: () => void): void {
+    const button = parent.createEl("button", { cls: "clickable-icon onemind-tool-button", attr: { "aria-label": title, title } });
+    setIcon(button, icon);
+    button.onClickEvent(action);
+  }
+
+  private async loadFile(): Promise<void> {
+    if (!this.file || !(this.file instanceof TFile)) {
+      this.renderEmpty(this.plugin.t("emptyView"));
+      return;
+    }
+
+    const source = await this.app.vault.read(this.file);
+    const document = parseMindDocument(source, this.file.basename);
+    this.root = document.root;
+    this.documentPrefix = document.prefix;
+    applyDefaultExpandDepth(this.root, this.plugin.settings.defaultExpandDepth);
+    this.lastSavedMarkdown = source;
+    this.hasLocalUnsavedChange = false;
+    this.history = [];
+    this.future = [];
+    this.selectedId = this.selectedId && findNode(this.root, this.selectedId) ? this.selectedId : this.root.id;
+    this.selectedIds = new Set([this.selectedId]);
+    this.render();
+    this.applyPendingFocus();
+  }
+
+  private renderEmpty(message: string): void {
+    this.root = null;
+    this.nodesEl?.empty();
+    this.svgEl?.empty();
+    this.contentEl.createDiv({ cls: "onemind-empty", text: message });
+  }
+
+  private render(): void {
+    if (!this.root) return;
+    const visibleRoot = this.tagFilter ? filterTreeByTag(this.root, this.tagFilter) : this.root;
+    this.positions = visibleRoot ? layoutTree(visibleRoot, this.plugin.settings.branchColors, this.plugin.settings.layoutDirection) : [];
+    this.refreshSearchMatches();
+    this.nodesEl.empty();
+    this.svgEl.empty();
+    this.dragMarkerEl = null;
+
+    if (this.positions.length === 0) {
+      this.renderOutline();
+      this.applyTransform();
+      return;
+    }
+
+    const bounds = getBounds(this.positions);
+    this.svgEl.setAttrs({
+      width: `${Math.max(1, bounds.width + 300)}`,
+      height: `${Math.max(1, bounds.height + 180)}`,
+      viewBox: `${bounds.minX - 80} ${bounds.minY - 80} ${bounds.width + 160} ${bounds.height + 160}`
+    });
+
+    for (const item of this.positions) {
+      if (item.parent) this.drawLink(item);
+    }
+
+    if (this.plugin.settings.showAssociationLinks) {
+      this.drawAssociationLinks();
+    }
+
+    for (const item of this.positions) {
+      this.renderNode(item);
+    }
+
+    this.renderOutline();
+    this.updateStatus();
+    this.applyTransform();
+  }
+
+  private renderOutline(): void {
+    if (!this.root || !this.outlineListEl) return;
+    this.outlineEl.toggleClass("is-hidden", !this.outlineVisible);
+    this.outlineListEl.empty();
+    if (this.tagFilter) {
+      const filterRow = this.outlineListEl.createDiv({ cls: "onemind-outline-filter" });
+      filterRow.createSpan({ text: `${this.plugin.t("tagFilterActive")}: #${this.tagFilter}` });
+      const clearButton = filterRow.createEl("button", { text: "x" });
+      clearButton.onClickEvent(() => this.clearTagFilter());
+    }
+
+    const visit = (node: MindNode, depth: number): void => {
+      if (this.tagFilter && !subtreeHasTag(node, this.tagFilter)) return;
+      const row = this.outlineListEl.createDiv({ cls: "onemind-outline-row" });
+      row.toggleClass("is-selected", this.selectedIds.has(node.id));
+      row.style.paddingLeft = `${8 + depth * 14}px`;
+      const parsed = parseNodeText(node.text);
+      if (parsed.emoji) row.createSpan({ cls: "onemind-outline-emoji", text: parsed.emoji });
+      row.createSpan({ cls: "onemind-outline-label", text: stripMarkdownFormatting(parsed.displayLabel) });
+      if (node.collapsed && node.children.length > 0) row.createSpan({ cls: "onemind-outline-count", text: `${node.children.length}` });
+      row.onClickEvent((event) => {
+        event.stopPropagation();
+        this.selectAndFocusNode(node.id);
+      });
+      if (!node.collapsed) {
+        for (const child of node.children) visit(child, depth + 1);
+      }
+    };
+
+    visit(this.root, 0);
+  }
+
+  private renderNode(item: PositionedNode): void {
+    const el = this.nodesEl.createDiv({ cls: "onemind-node" });
+    el.toggleClass("is-root", item.depth === 0);
+    el.toggleClass("is-selected", this.selectedIds.has(item.node.id));
+    el.toggleClass("is-primary-selected", item.node.id === this.selectedId);
+    el.toggleClass("is-search-match", this.searchMatches.includes(item.node.id));
+    el.toggleClass("is-active-search-match", this.activeSearchIndex >= 0 && this.searchMatches[this.activeSearchIndex] === item.node.id);
+    el.toggleClass("is-collapsed", item.node.collapsed);
+    el.setAttr("data-node-id", item.node.id);
+    el.setAttr("data-node-anchor", slugifyNodeText(item.node.text));
+    el.setAttr("tabindex", "0");
+    el.style.left = `${item.x}px`;
+    el.style.top = `${item.y}px`;
+    el.style.width = `${item.width}px`;
+    el.style.borderColor = item.color;
+
+    const parsedText = parseNodeText(item.node.text);
+    if (parsedText.emoji) {
+      el.createDiv({ cls: "onemind-node-emoji", text: parsedText.emoji });
+      el.addClass("has-emoji");
+    }
+
+    const content = el.createDiv({ cls: "onemind-node-content" });
+    renderInlineMarkdown(content, parsedText.displayLabel, this.app);
+
+    if (parsedText.tags.length > 0) {
+      const tagsEl = el.createDiv({ cls: "onemind-node-tags" });
+      for (const tag of parsedText.tags) {
+        const tagEl = tagsEl.createSpan({ cls: "onemind-node-tag", text: `#${tag}` });
+        tagEl.toggleClass("is-active", this.tagFilter === tag);
+        tagEl.onClickEvent((event) => {
+          event.stopPropagation();
+          this.setTagFilter(tag);
+        });
+      }
+    }
+
+    if (item.node.children.length > 0) {
+      const toggle = el.createDiv({ cls: "onemind-collapse" });
+      setIcon(toggle, item.node.collapsed ? "chevron-right" : "chevron-down");
+      toggle.onClickEvent((event) => {
+        event.stopPropagation();
+        this.toggleCollapse(item.node.id);
+      });
+    }
+
+    el.onClickEvent((event) => this.handleNodeClick(event, item.node.id));
+    el.ondblclick = () => this.editNode(item.node.id);
+    el.addEventListener("pointerdown", (event) => this.onNodePointerDown(event, item));
+    el.addEventListener("pointermove", () => this.clearLongPressTimer());
+    el.addEventListener("pointerleave", () => this.clearLongPressTimer());
+    el.addEventListener("contextmenu", (event) => this.openNodeMenu(event, item.node.id));
+  }
+
+  private openNodeMenu(event: MouseEvent, id: string): void {
+    event.preventDefault();
+    event.stopPropagation();
+    if (!this.selectedIds.has(id)) {
+      this.selectedId = id;
+      this.selectedIds = new Set([id]);
+      this.render();
+    }
+
+    const menu = new Menu();
+    menu.addItem((item) => item.setTitle(this.plugin.t("addChild")).setIcon("plus").onClick(() => this.addChildNode()));
+    menu.addItem((item) => item.setTitle(this.plugin.t("addSibling")).setIcon("corner-down-right").onClick(() => this.addSiblingNode()));
+    menu.addItem((item) => item.setTitle(this.plugin.t("editNode")).setIcon("pencil").onClick(() => this.editSelectedNode()));
+    menu.addSeparator();
+    menu.addItem((item) => item.setTitle(this.plugin.t("duplicateNode")).setIcon("copy-plus").onClick(() => this.duplicateSelectedNode()));
+    menu.addItem((item) => item.setTitle(this.plugin.t("copyBranch")).setIcon("copy").onClick(() => void this.copySelectedBranchMarkdown()));
+    menu.addItem((item) => item.setTitle(this.plugin.t("copyNodeLink")).setIcon("link").onClick(() => void this.copySelectedNodeLink()));
+    menu.addSeparator();
+    menu.addItem((item) => item.setTitle(this.plugin.t("setEmoji")).setIcon("smile").onClick(() => this.openEmojiPicker()));
+    menu.addItem((item) => item.setTitle(this.plugin.t("addTag")).setIcon("tag").onClick(() => this.openTagModal()));
+    menu.addItem((item) => item.setTitle(this.plugin.t("clearTags")).setIcon("tag").onClick(() => this.clearSelectedTags()));
+    menu.addSeparator();
+    menu.addItem((item) => item.setTitle(this.plugin.t("exportSelectedSvg")).setIcon("download").onClick(() => void this.exportSelectedSvg()));
+    menu.addItem((item) => item.setTitle(this.plugin.t("exportSelectedPng")).setIcon("image").onClick(() => void this.exportSelectedPng()));
+    menu.addSeparator();
+    menu.addItem((item) => item.setTitle(this.plugin.t("deleteNode")).setIcon("trash-2").onClick(() => this.deleteSelectedNode()));
+    menu.showAtMouseEvent(event);
+  }
+
+  private openNodeMenuAt(id: string, x: number, y: number): void {
+    const event = new MouseEvent("contextmenu", { clientX: x, clientY: y, bubbles: true, cancelable: true });
+    this.openNodeMenu(event, id);
+  }
+
+  private drawLink(item: PositionedNode): void {
+    const parent = this.positions.find((candidate) => candidate.node === item.parent);
+    if (!parent) return;
+    const path = createSvg("path");
+    const rightward = item.x >= parent.x;
+    const x1 = rightward ? parent.x + parent.width : parent.x;
+    const y1 = parent.y + NODE_HEIGHT / 2;
+    const x2 = rightward ? item.x : item.x + item.width;
+    const y2 = item.y + NODE_HEIGHT / 2;
+    const handle = Math.max(60, Math.abs(x2 - x1) * 0.45) * (rightward ? 1 : -1);
+    path.setAttrs({
+      d: `M ${x1} ${y1} C ${x1 + handle} ${y1}, ${x2 - handle} ${y2}, ${x2} ${y2}`,
+      stroke: item.color,
+      fill: "none"
+    });
+    this.svgEl.appendChild(path);
+  }
+
+  private drawAssociationLinks(): void {
+    const byAnchor = new Map<string, PositionedNode>();
+    for (const item of this.positions) {
+      byAnchor.set(slugifyNodeText(item.node.text), item);
+    }
+
+    const drawn = new Set<string>();
+    for (const source of this.positions) {
+      const anchors = extractLocalWikilinkAnchors(source.node.text, this.file);
+      for (const anchor of anchors) {
+        const target = byAnchor.get(anchor);
+        if (!target || target.node.id === source.node.id) continue;
+        const key = [source.node.id, target.node.id].sort().join(":");
+        if (drawn.has(key)) continue;
+        drawn.add(key);
+        this.drawAssociationLink(source, target);
+      }
+    }
+  }
+
+  private drawAssociationLink(source: PositionedNode, target: PositionedNode): void {
+    const path = createSvg("path");
+    path.addClass("onemind-association-link");
+    const x1 = source.x + source.width / 2;
+    const y1 = source.y + NODE_HEIGHT / 2;
+    const x2 = target.x + target.width / 2;
+    const y2 = target.y + NODE_HEIGHT / 2;
+    const midX = (x1 + x2) / 2;
+    const lift = Math.max(80, Math.abs(y2 - y1) * 0.35);
+    const midY = Math.min(y1, y2) - lift;
+    path.setAttrs({
+      d: `M ${x1} ${y1} Q ${midX} ${midY}, ${x2} ${y2}`,
+      fill: "none"
+    });
+    this.svgEl.appendChild(path);
+  }
+
+  private selectNode(id: string): void {
+    this.selectedId = id;
+    this.selectedIds = new Set([id]);
+    this.render();
+  }
+
+  private selectAndFocusNode(id: string): void {
+    this.selectedId = id;
+    this.selectedIds = new Set([id]);
+    this.expandAncestors(id);
+    this.render();
+    this.focusSelected();
+  }
+
+  private applyPendingFocus(): void {
+    if (!this.root || !this.pendingFocus) return;
+    const target = this.resolveFocusTarget(this.pendingFocus);
+    this.pendingFocus = null;
+    if (!target) return;
+    window.setTimeout(() => this.selectAndFocusNode(target.id), 0);
+  }
+
+  private resolveFocusTarget(target: { node?: string; heading?: string }): MindNode | null {
+    if (!this.root) return null;
+    if (target.node) {
+      const byId = findNode(this.root, target.node);
+      if (byId) return byId;
+      const byNodeAnchor = findNodeByAnchor(this.root, target.node);
+      if (byNodeAnchor) return byNodeAnchor;
+    }
+    if (target.heading) return findNodeByAnchor(this.root, target.heading);
+    return null;
+  }
+
+  private handleNodeClick(event: MouseEvent, id: string): void {
+    if (event.metaKey || event.ctrlKey) {
+      this.toggleNodeSelection(id);
+      return;
+    }
+    if (event.shiftKey && this.selectedId) {
+      this.selectRange(this.selectedId, id);
+      return;
+    }
+    this.selectNode(id);
+  }
+
+  private toggleNodeSelection(id: string): void {
+    if (this.selectedIds.has(id) && this.selectedIds.size > 1) {
+      this.selectedIds.delete(id);
+      if (this.selectedId === id) this.selectedId = this.selectedIds.values().next().value ?? null;
+    } else {
+      this.selectedIds.add(id);
+      this.selectedId = id;
+    }
+    this.render();
+  }
+
+  private selectRange(fromId: string, toId: string): void {
+    const ordered = this.positions.map((item) => item.node.id);
+    const from = ordered.indexOf(fromId);
+    const to = ordered.indexOf(toId);
+    if (from === -1 || to === -1) {
+      this.selectNode(toId);
+      return;
+    }
+    const [start, end] = from < to ? [from, to] : [to, from];
+    this.selectedIds = new Set(ordered.slice(start, end + 1));
+    this.selectedId = toId;
+    this.render();
+  }
+
+  editSelectedNode(): void {
+    if (this.selectedId) this.editNode(this.selectedId);
+  }
+
+  openEmojiPicker(): void {
+    if (!this.root || !this.selectedId) return;
+    new EmojiSuggestModal(this.app, this.plugin.t("chooseEmoji"), (emoji) => this.setSelectedEmoji(emoji)).open();
+  }
+
+  clearSelectedEmoji(): void {
+    this.setSelectedEmoji(null);
+  }
+
+  openTagModal(): void {
+    if (!this.root || this.selectedIds.size === 0) return;
+    new TagInputModal(this.app, this.plugin.t("enterTag"), (tag) => this.addTagToSelected(tag)).open();
+  }
+
+  openTagFilterModal(): void {
+    if (!this.root) return;
+    new TagSuggestModal(this.app, this.getAllTags(), this.plugin.t("filterByTag"), (tag) => this.setTagFilter(tag)).open();
+  }
+
+  clearTagFilter(): void {
+    this.tagFilter = null;
+    this.render();
+  }
+
+  private setTagFilter(tag: string): void {
+    const normalized = normalizeTag(tag);
+    if (!normalized) return;
+    this.tagFilter = normalized;
+    this.render();
+    const first = this.positions.find((item) => parseNodeText(item.node.text).tags.includes(normalized));
+    if (first) this.selectAndFocusNode(first.node.id);
+  }
+
+  private getAllTags(): string[] {
+    if (!this.root) return [];
+    return [...new Set(flattenNodes(this.root).flatMap((node) => parseNodeText(node.text).tags))].sort();
+  }
+
+  clearSelectedTags(): void {
+    if (!this.root) return;
+    const nodes = this.getSelectedNodes();
+    if (nodes.length === 0) return;
+    this.pushHistory();
+    for (const node of nodes) {
+      node.text = removeNodeTags(node.text);
+    }
+    this.scheduleSave();
+    this.render();
+  }
+
+  private addTagToSelected(tag: string): void {
+    if (!this.root) return;
+    const normalized = normalizeTag(tag);
+    if (!normalized) return;
+    const nodes = this.getSelectedNodes();
+    if (nodes.length === 0) return;
+    this.pushHistory();
+    for (const node of nodes) {
+      node.text = addTagToText(node.text, normalized);
+    }
+    this.scheduleSave();
+    this.render();
+  }
+
+  private setSelectedEmoji(emoji: string | null): void {
+    if (!this.root) return;
+    const nodes = this.getSelectedNodes();
+    if (nodes.length === 0) return;
+    this.pushHistory();
+    for (const node of nodes) {
+      const parsed = parseEmojiText(node.text);
+      node.text = emoji ? `${emoji} ${parsed.label}` : parsed.label;
+    }
+    this.scheduleSave();
+    this.render();
+  }
+
+  private editNode(id: string): void {
+    if (!this.root) return;
+    const node = findNode(this.root, id);
+    const card = this.nodesEl.querySelector<HTMLElement>(`[data-node-id="${id}"]`);
+    if (!node || !card) return;
+
+    this.selectedId = id;
+    card.empty();
+    card.addClass("is-editing");
+    const input = card.createEl("textarea", { cls: "onemind-editor" });
+    input.value = node.text;
+    input.focus();
+    input.select();
+
+    let committed = false;
+    const commit = (): void => {
+      if (committed) return;
+      committed = true;
+      const value = input.value.trim() || "Untitled";
+      this.pushHistory();
+      node.text = value;
+      this.scheduleSave();
+      this.render();
+    };
+
+    input.addEventListener("keydown", (event) => {
+      if (event.key === "Enter" && !event.shiftKey) {
+        event.preventDefault();
+        commit();
+      }
+      if (event.key === "Escape") {
+        event.preventDefault();
+        this.render();
+      }
+    });
+    input.addEventListener("blur", commit, { once: true });
+  }
+
+  addChildNode(): void {
+    if (!this.root) return;
+    const parent = findNode(this.root, this.selectedId ?? this.root.id) ?? this.root;
+    this.pushHistory();
+    const child = createNode("New idea", nextKind(parent, getNodeDepth(this.root, parent.id)));
+    parent.children.push(child);
+    parent.collapsed = false;
+    this.selectedId = child.id;
+    this.scheduleSave();
+    this.render();
+    window.setTimeout(() => this.editNode(child.id), 20);
+  }
+
+  addSiblingNode(): void {
+    if (!this.root || !this.selectedId || this.selectedId === this.root.id) {
+      this.addChildNode();
+      return;
+    }
+    const parent = findParent(this.root, this.selectedId);
+    const selected = findNode(this.root, this.selectedId);
+    if (!parent || !selected) return;
+    this.pushHistory();
+    const index = parent.children.findIndex((child) => child.id === selected.id);
+    const sibling = createNode("New idea", selected.kind);
+    parent.children.splice(index + 1, 0, sibling);
+    this.selectedId = sibling.id;
+    this.scheduleSave();
+    this.render();
+    window.setTimeout(() => this.editNode(sibling.id), 20);
+  }
+
+  duplicateSelectedNode(): void {
+    if (!this.root || !this.selectedId || this.selectedId === this.root.id) return;
+    const parent = findParent(this.root, this.selectedId);
+    const selected = findNode(this.root, this.selectedId);
+    if (!parent || !selected) return;
+    this.pushHistory();
+    const index = parent.children.findIndex((child) => child.id === selected.id);
+    const duplicate = cloneNodeWithNewIds(selected);
+    parent.children.splice(index + 1, 0, duplicate);
+    this.selectedId = duplicate.id;
+    this.selectedIds = new Set([duplicate.id]);
+    this.scheduleSave();
+    this.render();
+    this.focusSelected();
+  }
+
+  moveSelectedNode(direction: "up" | "down" | "indent" | "outdent"): void {
+    if (!this.root || !this.selectedId || this.selectedId === this.root.id) return;
+    this.pushHistory();
+    const moved = moveNodeByKeyboard(this.root, this.selectedId, direction);
+    if (!moved) {
+      this.history.pop();
+      return;
+    }
+    this.scheduleSave();
+    this.render();
+    this.focusSelected();
+  }
+
+  deleteSelectedNode(): void {
+    if (!this.root) return;
+    const ids = this.getEditableSelectedIds();
+    if (ids.length === 0) return;
+    this.pushHistory();
+    const fallbackParent = this.selectedId ? findParent(this.root, this.selectedId) : null;
+    deleteNodes(this.root, new Set(ids));
+    this.selectedId = fallbackParent?.id ?? this.root.id;
+    this.selectedIds = new Set([this.selectedId]);
+    this.scheduleSave();
+    this.render();
+  }
+
+  private toggleCollapse(id: string): void {
+    if (!this.root) return;
+    const node = findNode(this.root, id);
+    if (!node) return;
+    node.collapsed = !node.collapsed;
+    this.render();
+  }
+
+  toggleSelectedNode(): void {
+    if (!this.root) return;
+    const nodes = this.getSelectedNodes();
+    if (nodes.length === 0) return;
+    const shouldCollapse = nodes.some((node) => !node.collapsed && node.children.length > 0);
+    for (const node of nodes) {
+      if (node.children.length > 0) node.collapsed = shouldCollapse;
+    }
+    this.render();
+  }
+
+  expandAllNodes(): void {
+    if (!this.root) return;
+    setCollapsedRecursive(this.root, false);
+    this.render();
+  }
+
+  collapseAllNodes(): void {
+    if (!this.root) return;
+    setCollapsedRecursive(this.root, true);
+    this.root.collapsed = false;
+    this.selectedId = this.root.id;
+    this.render();
+    this.focusSelected();
+  }
+
+  private scheduleSave(): void {
+    if (!this.root || !this.file) return;
+    this.hasLocalUnsavedChange = true;
+    this.updateStatus();
+    if (this.saveTimer) window.clearTimeout(this.saveTimer);
+    this.saveTimer = window.setTimeout(() => void this.saveNow(), this.plugin.settings.autoSaveDelay);
+  }
+
+  private showConflictModal(): void {
+    if (this.conflictModalOpen) return;
+    this.conflictModalOpen = true;
+    new ConflictModal(
+      this.app,
+      {
+        title: this.plugin.t("conflictTitle"),
+        body: this.plugin.t("conflictBody"),
+        reload: this.plugin.t("reloadMarkdown"),
+        keep: this.plugin.t("keepEdits")
+      },
+      async () => {
+        this.conflictModalOpen = false;
+        await this.loadFile();
+        new Notice(this.plugin.t("reloadedExternal"));
+      },
+      async () => {
+        this.conflictModalOpen = false;
+        await this.saveNow();
+        new Notice(this.plugin.t("keptLocal"));
+      },
+      () => {
+        this.conflictModalOpen = false;
+      }
+    ).open();
+  }
+
+  private async saveNow(): Promise<void> {
+    if (!this.root || !this.file) return;
+    const markdown = this.serializeCurrentMarkdown();
+    this.isSaving = true;
+    this.updateStatus();
+    await this.app.vault.modify(this.file, markdown);
+    this.lastSavedMarkdown = markdown;
+    this.hasLocalUnsavedChange = false;
+    this.isSaving = false;
+    this.updateStatus();
+  }
+
+  private pushHistory(): void {
+    if (!this.root) return;
+    this.history.push(this.serializeCurrentMarkdown());
+    if (this.history.length > 80) this.history.shift();
+    this.future = [];
+  }
+
+  private undo(): void {
+    if (!this.root || this.history.length === 0) return;
+    this.future.push(this.serializeCurrentMarkdown());
+    const previous = this.history.pop();
+    if (!previous) return;
+    const document = parseMindDocument(previous, this.file?.basename ?? "Mind map");
+    this.root = document.root;
+    this.documentPrefix = document.prefix;
+    this.selectedId = this.root.id;
+    this.selectedIds = new Set([this.root.id]);
+    this.render();
+    void this.saveNow();
+  }
+
+  private redo(): void {
+    if (!this.root) return;
+    const next = this.future.pop();
+    if (!next) return;
+    this.history.push(this.serializeCurrentMarkdown());
+    const document = parseMindDocument(next, this.file?.basename ?? "Mind map");
+    this.root = document.root;
+    this.documentPrefix = document.prefix;
+    this.selectedId = this.root.id;
+    this.selectedIds = new Set([this.root.id]);
+    this.render();
+    void this.saveNow();
+  }
+
+  private onKeyDown(event: KeyboardEvent): void {
+    if (event.target instanceof HTMLTextAreaElement) return;
+    const mod = event.ctrlKey || event.metaKey;
+    if (mod && event.key.toLowerCase() === "z" && event.shiftKey) {
+      event.preventDefault();
+      this.redo();
+      return;
+    }
+    if (mod && event.key.toLowerCase() === "z") {
+      event.preventDefault();
+      this.undo();
+      return;
+    }
+    if (mod && event.key.toLowerCase() === "a") {
+      event.preventDefault();
+      this.selectAllNodes();
+      return;
+    }
+    if (mod && event.key === "=") {
+      event.preventDefault();
+      this.zoomAtCenter(1.1);
+      return;
+    }
+    if (mod && event.key === "-") {
+      event.preventDefault();
+      this.zoomAtCenter(0.9);
+      return;
+    }
+    if (mod && event.shiftKey && event.key.toLowerCase() === "f") {
+      event.preventDefault();
+      this.fitToView();
+      return;
+    }
+    if (mod && event.key.toLowerCase() === "f") {
+      event.preventDefault();
+      this.focusSelected();
+      return;
+    }
+    if (event.altKey && event.key === "ArrowUp") {
+      event.preventDefault();
+      this.moveSelectedNode("up");
+      return;
+    }
+    if (event.altKey && event.key === "ArrowDown") {
+      event.preventDefault();
+      this.moveSelectedNode("down");
+      return;
+    }
+    if (event.altKey && event.key === "ArrowRight") {
+      event.preventDefault();
+      this.moveSelectedNode("indent");
+      return;
+    }
+    if (event.altKey && event.key === "ArrowLeft") {
+      event.preventDefault();
+      this.moveSelectedNode("outdent");
+      return;
+    }
+    if (event.key === "Tab") {
+      event.preventDefault();
+      this.addChildNode();
+    } else if (event.key === "/") {
+      event.preventDefault();
+      this.focusSearch();
+    } else if (event.key === "Enter") {
+      event.preventDefault();
+      this.addSiblingNode();
+    } else if (event.key === "F2") {
+      event.preventDefault();
+      if (this.selectedId) this.editNode(this.selectedId);
+    } else if (event.key === "Delete" || event.key === "Backspace") {
+      event.preventDefault();
+      this.deleteSelectedNode();
+    } else if (event.key === " ") {
+      event.preventDefault();
+      if (this.selectedId) this.toggleCollapse(this.selectedId);
+    } else if (event.key.startsWith("Arrow")) {
+      event.preventDefault();
+      this.moveSelection(event.key);
+    }
+  }
+
+  private onSearchKeyDown(event: KeyboardEvent): void {
+    if (event.key === "Enter") {
+      event.preventDefault();
+      this.jumpSearch(event.shiftKey ? -1 : 1);
+    } else if (event.key === "Escape") {
+      event.preventDefault();
+      this.searchInputEl.value = "";
+      this.updateSearch("");
+      this.contentEl.focus();
+    } else if (event.key === "ArrowDown" || event.key === "ArrowUp") {
+      event.preventDefault();
+      this.jumpSearch(event.key === "ArrowDown" ? 1 : -1);
+    }
+  }
+
+  focusSearch(): void {
+    this.searchInputEl.focus();
+    this.searchInputEl.select();
+  }
+
+  toggleOutline(force?: boolean): void {
+    this.outlineVisible = force ?? !this.outlineVisible;
+    this.renderOutline();
+  }
+
+  selectAllNodes(): void {
+    if (!this.root) return;
+    this.selectedIds = new Set(flattenNodes(this.root).map((node) => node.id));
+    this.selectedId = this.root.id;
+    this.render();
+  }
+
+  async exportSvg(): Promise<void> {
+    if (!this.root || !this.file || this.positions.length === 0) return;
+    await this.exportSvgFromPositions(this.positions, this.file.basename, this.getExportPath("svg"));
+  }
+
+  async exportPng(): Promise<void> {
+    if (!this.root || !this.file || this.positions.length === 0) return;
+    await this.exportPngFromPositions(this.positions, this.file.basename, this.getExportPath("png"));
+  }
+
+  async exportSelectedSvg(): Promise<void> {
+    const branch = this.getSelectedBranchExport();
+    if (!branch) return;
+    await this.exportSvgFromPositions(branch.positions, branch.title, this.getExportPath("svg", branch.slug));
+  }
+
+  async exportSelectedPng(): Promise<void> {
+    const branch = this.getSelectedBranchExport();
+    if (!branch) return;
+    await this.exportPngFromPositions(branch.positions, branch.title, this.getExportPath("png", branch.slug));
+  }
+
+  private async exportSvgFromPositions(positions: PositionedNode[], title: string, path: string): Promise<void> {
+    const svg = renderSvgDocument(positions, title, this.plugin.settings.showAssociationLinks);
+    await this.writeTextFile(path, svg);
+    new Notice(`${this.plugin.t("exported")} ${path}`);
+  }
+
+  private async exportPngFromPositions(positions: PositionedNode[], title: string, path: string): Promise<void> {
+    const svg = renderSvgDocument(positions, title, this.plugin.settings.showAssociationLinks);
+    const png = await svgToPng(svg, this.plugin.settings.exportScale, this.plugin.settings.exportTransparentBackground);
+    const existing = this.app.vault.getAbstractFileByPath(path);
+    if (existing instanceof TFile) {
+      await this.app.vault.modifyBinary(existing, png);
+    } else {
+      await this.app.vault.createBinary(path, png);
+    }
+    new Notice(`${this.plugin.t("exported")} ${path}`);
+  }
+
+  private getSelectedBranchExport(): { positions: PositionedNode[]; title: string; slug: string } | null {
+    if (!this.root || !this.selectedId) return null;
+    const node = findNode(this.root, this.selectedId);
+    if (!node) return null;
+    const branchRoot = cloneNode(node);
+    setCollapsedRecursive(branchRoot, false);
+    const positions = layoutTree(branchRoot, this.plugin.settings.branchColors, this.plugin.settings.layoutDirection);
+    const title = stripInlineMarkdown(node.text);
+    return { positions, title, slug: slugifyNodeText(node.text) || "branch" };
+  }
+
+  async copySelectedNodeLink(): Promise<void> {
+    if (!this.file || !this.root || !this.selectedId) return;
+    const node = findNode(this.root, this.selectedId);
+    if (!node) return;
+    const vault = this.app.vault.getName();
+    const file = this.file.path;
+    const nodeAnchor = slugifyNodeText(node.text);
+    const link = `obsidian://open?vault=${encodeURIComponent(vault)}&file=${encodeURIComponent(file)}#${encodeURIComponent(nodeAnchor)}`;
+    await navigator.clipboard.writeText(link);
+    new Notice(this.plugin.t("copiedLink"));
+  }
+
+  async copySelectedBranchMarkdown(): Promise<void> {
+    if (!this.root || !this.selectedId) return;
+    const node = findNode(this.root, this.selectedId);
+    if (!node) return;
+    await navigator.clipboard.writeText(serializeMarkdown(cloneNode(node)));
+    new Notice(this.plugin.t("copiedBranch"));
+  }
+
+  async pasteMarkdownAsChild(): Promise<void> {
+    if (!this.root) return;
+    const parent = findNode(this.root, this.selectedId ?? this.root.id) ?? this.root;
+    const nodes = await this.readClipboardNodes(parent.kind, getNodeDepth(this.root, parent.id) + 1);
+    if (nodes.length === 0) return;
+    this.pushHistory();
+    parent.children.push(...nodes);
+    parent.collapsed = false;
+    this.selectedId = nodes[0].id;
+    this.selectedIds = new Set([nodes[0].id]);
+    this.scheduleSave();
+    this.render();
+    new Notice(this.plugin.t("pastedMarkdown"));
+  }
+
+  async pasteMarkdownAsSibling(): Promise<void> {
+    if (!this.root || !this.selectedId || this.selectedId === this.root.id) {
+      await this.pasteMarkdownAsChild();
+      return;
+    }
+    const selected = findNode(this.root, this.selectedId);
+    const parent = findParent(this.root, this.selectedId);
+    if (!selected || !parent) return;
+    const nodes = await this.readClipboardNodes(selected.kind, getNodeDepth(this.root, selected.id));
+    if (nodes.length === 0) return;
+    this.pushHistory();
+    const index = parent.children.findIndex((child) => child.id === selected.id);
+    parent.children.splice(index + 1, 0, ...nodes);
+    this.selectedId = nodes[0].id;
+    this.selectedIds = new Set([nodes[0].id]);
+    this.scheduleSave();
+    this.render();
+    new Notice(this.plugin.t("pastedMarkdown"));
+  }
+
+  private async readClipboardNodes(kind: NodeKind, depth: number): Promise<MindNode[]> {
+    const text = await navigator.clipboard.readText();
+    if (!text.trim()) {
+      new Notice(this.plugin.t("clipboardEmpty"));
+      return [];
+    }
+    const document = parseMindDocument(text, "Clipboard");
+    const nodes = document.root.text === "Clipboard" && document.root.children.length > 0 ? document.root.children : [document.root];
+    const cloned = nodes.map((node) => cloneNode(node));
+    for (const node of cloned) normalizePastedNodeKinds(node, kind, depth);
+    if (cloned.length === 0) new Notice(this.plugin.t("clipboardEmpty"));
+    return cloned;
+  }
+
+  private updateSearch(query: string): void {
+    this.searchQuery = query.trim().toLowerCase();
+    this.refreshSearchMatches();
+    this.activeSearchIndex = this.searchMatches.length > 0 ? 0 : -1;
+    if (this.activeSearchIndex >= 0) {
+      const id = this.searchMatches[this.activeSearchIndex];
+      if (id) this.selectAndFocusNode(id);
+    } else {
+      this.render();
+    }
+    this.updateSearchCount();
+  }
+
+  private refreshSearchMatches(): void {
+    if (!this.root || this.searchQuery.length === 0) {
+      this.searchMatches = [];
+      this.activeSearchIndex = -1;
+      this.updateSearchCount();
+      return;
+    }
+    this.searchMatches = flattenNodes(this.root)
+      .filter((node) => node.text.toLowerCase().includes(this.searchQuery))
+      .map((node) => node.id);
+    if (this.activeSearchIndex >= this.searchMatches.length) this.activeSearchIndex = this.searchMatches.length - 1;
+    if (this.searchMatches.length === 0) this.activeSearchIndex = -1;
+    this.updateSearchCount();
+  }
+
+  private updateSearchCount(): void {
+    if (!this.searchCountEl) return;
+    if (this.searchQuery.length === 0) {
+      this.searchCountEl.setText("");
+      return;
+    }
+    const active = this.activeSearchIndex >= 0 ? this.activeSearchIndex + 1 : 0;
+    this.searchCountEl.setText(`${active}/${this.searchMatches.length}`);
+  }
+
+  private jumpSearch(direction: 1 | -1): void {
+    if (this.searchMatches.length === 0) return;
+    this.activeSearchIndex = (this.activeSearchIndex + direction + this.searchMatches.length) % this.searchMatches.length;
+    const id = this.searchMatches[this.activeSearchIndex];
+    if (id) this.selectAndFocusNode(id);
+    this.updateSearchCount();
+  }
+
+  private moveSelection(key: string): void {
+    if (!this.root || !this.selectedId) return;
+    const current = findNode(this.root, this.selectedId);
+    if (!current) return;
+
+    if (key === "ArrowRight") {
+      if (current.collapsed && current.children.length > 0) {
+        this.toggleCollapse(current.id);
+        return;
+      }
+      const child = current.children[0];
+      if (child) this.selectAndFocusNode(child.id);
+      return;
+    }
+
+    if (key === "ArrowLeft") {
+      const parent = findParent(this.root, current.id);
+      if (current.children.length > 0 && !current.collapsed) {
+        this.toggleCollapse(current.id);
+      } else if (parent) {
+        this.selectAndFocusNode(parent.id);
+      }
+      return;
+    }
+
+    const visible = this.positions.slice().sort((a, b) => a.y - b.y || a.x - b.x);
+    const index = visible.findIndex((item) => item.node.id === current.id);
+    const next = visible[index + (key === "ArrowDown" ? 1 : -1)];
+    if (next) this.selectAndFocusNode(next.node.id);
+  }
+
+  private expandAncestors(id: string): void {
+    if (!this.root) return;
+    const path = findPath(this.root, id);
+    for (const node of path.slice(0, -1)) node.collapsed = false;
+  }
+
+  private getSelectedNodes(): MindNode[] {
+    if (!this.root) return [];
+    return [...this.selectedIds]
+      .map((id) => findNode(this.root as MindNode, id))
+      .filter((node): node is MindNode => Boolean(node));
+  }
+
+  private getEditableSelectedNodes(): MindNode[] {
+    if (!this.root) return [];
+    return this.getSelectedNodes().filter((node) => node.id !== this.root?.id);
+  }
+
+  private getEditableSelectedIds(): string[] {
+    return this.getEditableSelectedNodes().map((node) => node.id);
+  }
+
+  private onWheel(event: WheelEvent): void {
+    event.preventDefault();
+    const factor = event.deltaY > 0 ? 0.92 : 1.08;
+    this.scale = clamp(this.scale * factor, 0.35, 2.2);
+    this.applyTransform();
+  }
+
+  private onPointerDown(event: PointerEvent): void {
+    const target = event.target as HTMLElement;
+    if (target.closest(".onemind-node") || target.closest(".onemind-toolbar")) return;
+    this.panning = { x: event.clientX, y: event.clientY, panX: this.panX, panY: this.panY };
+    this.canvasEl.setPointerCapture(event.pointerId);
+  }
+
+  private onPointerMove(event: PointerEvent): void {
+    if (this.dragState) {
+      this.onNodePointerMove(event);
+      return;
+    }
+    if (!this.panning) return;
+    this.panX = this.panning.panX + event.clientX - this.panning.x;
+    this.panY = this.panning.panY + event.clientY - this.panning.y;
+    this.applyTransform();
+  }
+
+  private onPointerUp(event: PointerEvent): void {
+    if (this.dragState) {
+      this.finishNodeDrag(event);
+      return;
+    }
+    this.stopPanning();
+  }
+
+  private stopPanning(): void {
+    this.panning = null;
+  }
+
+  private onNodePointerDown(event: PointerEvent, item: PositionedNode): void {
+    if (event.button !== 0 || item.node.id === this.root?.id || event.target instanceof HTMLTextAreaElement) return;
+    const target = event.target as HTMLElement;
+    if (target.closest(".onemind-collapse") || target.closest(".onemind-wikilink")) return;
+    event.stopPropagation();
+    this.selectedId = item.node.id;
+    this.selectedIds = new Set([item.node.id]);
+    this.nodesEl.querySelectorAll(".is-selected").forEach((nodeEl) => nodeEl.removeClass("is-selected"));
+    (event.currentTarget as HTMLElement).addClass("is-selected");
+    const point = this.toScenePoint(event.clientX, event.clientY);
+    this.dragState = {
+      nodeId: item.node.id,
+      pointerId: event.pointerId,
+      startClientX: event.clientX,
+      startClientY: event.clientY,
+      offsetX: point.x - item.x,
+      offsetY: point.y - item.y,
+      originalX: item.x,
+      originalY: item.y,
+      dragging: false,
+      el: event.currentTarget as HTMLElement
+    };
+    this.dragState.el.setPointerCapture(event.pointerId);
+    if (event.pointerType === "touch" || event.pointerType === "pen") {
+      this.longPressTimer = window.setTimeout(() => {
+        this.dragState = null;
+        this.openNodeMenuAt(item.node.id, event.clientX, event.clientY);
+      }, 560);
+    }
+  }
+
+  private onNodePointerMove(event: PointerEvent): void {
+    if (!this.dragState) return;
+    this.clearLongPressTimer();
+    const dx = event.clientX - this.dragState.startClientX;
+    const dy = event.clientY - this.dragState.startClientY;
+    if (!this.dragState.dragging && Math.hypot(dx, dy) < DRAG_THRESHOLD) return;
+
+    this.dragState.dragging = true;
+    this.dragState.el.addClass("is-dragging");
+    const point = this.toScenePoint(event.clientX, event.clientY);
+    const left = point.x - this.dragState.offsetX;
+    const top = point.y - this.dragState.offsetY;
+    this.dragState.el.style.left = `${left}px`;
+    this.dragState.el.style.top = `${top}px`;
+    this.dropTarget = this.getDropTarget(point.x, point.y, this.dragState.nodeId);
+    this.renderDropTarget();
+  }
+
+  private finishNodeDrag(event: PointerEvent): void {
+    if (!this.dragState || !this.root) return;
+    this.clearLongPressTimer();
+    const state = this.dragState;
+    const didDrag = state.dragging;
+    this.dragState = null;
+    this.clearDropTarget();
+
+    try {
+      state.el.releasePointerCapture(state.pointerId);
+    } catch {
+      // Pointer capture may already be released by the host app.
+    }
+
+    if (!didDrag || !this.dropTarget) {
+      state.el.style.left = `${state.originalX}px`;
+      state.el.style.top = `${state.originalY}px`;
+      state.el.removeClass("is-dragging");
+      this.render();
+      return;
+    }
+
+    event.preventDefault();
+    this.pushHistory();
+    const moved = moveNode(this.root, state.nodeId, this.dropTarget);
+    if (moved) {
+      this.selectedId = state.nodeId;
+      this.scheduleSave();
+    } else {
+      this.history.pop();
+    }
+    this.dropTarget = null;
+    this.render();
+  }
+
+  private getDropTarget(x: number, y: number, draggedId: string): DropTarget | null {
+    if (!this.root) return null;
+    const blocked = new Set(getDescendantIds(findNode(this.root, draggedId)));
+    blocked.add(draggedId);
+    const candidates = this.positions.filter((item) => !blocked.has(item.node.id));
+    const childHit = candidates.find((item) => x >= item.x && x <= item.x + item.width && y >= item.y && y <= item.y + item.height);
+    if (childHit) {
+      return { mode: "child", parentId: childHit.node.id, index: childHit.node.children.length, targetId: childHit.node.id };
+    }
+
+    let nearest: PositionedNode | null = null;
+    let nearestDistance = Number.POSITIVE_INFINITY;
+    for (const item of candidates) {
+      if (item.node.id === this.root.id) continue;
+      const distance = Math.hypot(x - (item.x + item.width / 2), y - (item.y + item.height / 2));
+      if (distance < nearestDistance) {
+        nearest = item;
+        nearestDistance = distance;
+      }
+    }
+    if (!nearest || !nearest.parent) return { mode: "child", parentId: this.root.id, index: this.root.children.length, targetId: this.root.id };
+    const siblings = nearest.parent.children;
+    const nearestIndex = siblings.findIndex((child) => child.id === nearest.node.id);
+    const index = y < nearest.y + nearest.height / 2 ? nearestIndex : nearestIndex + 1;
+    return { mode: "sibling", parentId: nearest.parent.id, index, targetId: nearest.node.id };
+  }
+
+  private renderDropTarget(): void {
+    this.clearDropTarget();
+    if (!this.dropTarget) return;
+    if (this.dropTarget.mode === "child") {
+      const targetEl = this.nodesEl.querySelector<HTMLElement>(`[data-node-id="${this.dropTarget.targetId}"]`);
+      targetEl?.addClass("is-drop-child");
+      return;
+    }
+
+    const targetPosition = this.positions.find((item) => item.node.id === this.dropTarget?.targetId);
+    if (!targetPosition) return;
+    this.dragMarkerEl = this.nodesEl.createDiv({ cls: "onemind-drop-marker" });
+    const before = this.dropTarget.index <= (findParent(this.root as MindNode, this.dropTarget.targetId)?.children.findIndex((child) => child.id === this.dropTarget?.targetId) ?? 0);
+    this.dragMarkerEl.style.left = `${targetPosition.x - 10}px`;
+    this.dragMarkerEl.style.top = `${before ? targetPosition.y - ROW_GAP / 2 : targetPosition.y + targetPosition.height + ROW_GAP / 2}px`;
+    this.dragMarkerEl.style.width = `${targetPosition.width + 20}px`;
+  }
+
+  private clearDropTarget(): void {
+    this.nodesEl.querySelectorAll(".is-drop-child").forEach((el) => el.removeClass("is-drop-child"));
+    this.dragMarkerEl?.remove();
+    this.dragMarkerEl = null;
+  }
+
+  private clearLongPressTimer(): void {
+    if (!this.longPressTimer) return;
+    window.clearTimeout(this.longPressTimer);
+    this.longPressTimer = null;
+  }
+
+  private toScenePoint(clientX: number, clientY: number): { x: number; y: number } {
+    const rect = this.canvasEl.getBoundingClientRect();
+    return {
+      x: (clientX - rect.left - this.panX) / this.scale,
+      y: (clientY - rect.top - this.panY) / this.scale
+    };
+  }
+
+  private serializeCurrentMarkdown(): string {
+    if (!this.root) return this.documentPrefix;
+    return `${this.documentPrefix}${serializeMarkdown(this.root)}`;
+  }
+
+  private getExportPath(extension: "svg" | "png", suffix?: string): string {
+    const folder = this.file?.parent?.path && this.file.parent.path !== "/" ? `${this.file.parent.path}/` : "";
+    const extra = suffix ? `.${suffix}` : "";
+    return `${folder}${this.file?.basename ?? "mind-map"}.onemind${extra}.${extension}`;
+  }
+
+  private async writeTextFile(path: string, content: string): Promise<void> {
+    const existing = this.app.vault.getAbstractFileByPath(path);
+    if (existing instanceof TFile) {
+      await this.app.vault.modify(existing, content);
+    } else {
+      await this.app.vault.create(path, content);
+    }
+  }
+
+  private zoomAtCenter(factor: number): void {
+    this.scale = clamp(this.scale * factor, 0.35, 2.2);
+    this.applyTransform();
+  }
+
+  focusSelected(): void {
+    const selected = this.positions.find((item) => item.node.id === this.selectedId);
+    if (!selected) return;
+    const rect = this.canvasEl.getBoundingClientRect();
+    this.panX = rect.width / 2 - (selected.x + selected.width / 2) * this.scale;
+    this.panY = rect.height / 2 - (selected.y + NODE_HEIGHT / 2) * this.scale;
+    this.applyTransform();
+  }
+
+  fitToView(): void {
+    if (this.positions.length === 0) return;
+    const bounds = getBounds(this.positions);
+    const rect = this.canvasEl.getBoundingClientRect();
+    const sx = (rect.width - 120) / Math.max(bounds.width, 1);
+    const sy = (rect.height - 120) / Math.max(bounds.height, 1);
+    this.scale = clamp(Math.min(sx, sy), 0.35, 1.4);
+    this.panX = rect.width / 2 - (bounds.minX + bounds.width / 2) * this.scale;
+    this.panY = rect.height / 2 - (bounds.minY + bounds.height / 2) * this.scale;
+    this.applyTransform();
+  }
+
+  private applyTransform(): void {
+    if (!this.sceneEl) return;
+    this.sceneEl.style.transform = `translate(${this.panX}px, ${this.panY}px) scale(${this.scale})`;
+    this.updateStatus();
+  }
+
+  private updateStatus(): void {
+    if (!this.statusEl) return;
+    const total = this.root ? flattenNodes(this.root).length : 0;
+    const visible = this.positions.length;
+    const saveState = this.isSaving ? this.plugin.t("saving") : this.hasLocalUnsavedChange ? this.plugin.t("unsaved") : this.plugin.t("saved");
+    const filter = this.tagFilter ? `#${this.tagFilter}` : "";
+    this.statusEl.setText([
+      `${visible}/${total} ${this.plugin.t("nodesLabel")}`,
+      `${this.selectedIds.size} ${this.plugin.t("selectedLabel")}`,
+      `${this.plugin.t("zoomLabel")} ${Math.round(this.scale * 100)}%`,
+      filter,
+      saveState
+    ].filter(Boolean).join(" · "));
+  }
+}
+
+class OneMindSettingTab extends PluginSettingTab {
+  plugin: OneMindPlugin;
+
+  constructor(app: App, plugin: OneMindPlugin) {
+    super(app, plugin);
+    this.plugin = plugin;
+  }
+
+  display(): void {
+    const { containerEl } = this;
+    containerEl.empty();
+
+    containerEl.createEl("h2", { text: this.plugin.t("settingsTitle") });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("language"))
+      .setDesc(this.plugin.t("languageDesc"))
+      .addDropdown((dropdown) => {
+        dropdown
+          .addOption("zh", this.plugin.t("chinese"))
+          .addOption("en", this.plugin.t("english"))
+          .setValue(this.plugin.settings.language)
+          .onChange(async (value) => {
+            this.plugin.settings.language = value as OneMindLanguage;
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+            this.display();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("autoSaveDelay"))
+      .setDesc(this.plugin.t("autoSaveDelayDesc"))
+      .addText((text) => {
+        text
+          .setPlaceholder("300")
+          .setValue(String(this.plugin.settings.autoSaveDelay))
+          .onChange(async (value) => {
+            const parsed = Number.parseInt(value, 10);
+            this.plugin.settings.autoSaveDelay = Number.isFinite(parsed) ? clamp(parsed, 0, 5000) : DEFAULT_SETTINGS.autoSaveDelay;
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("defaultExpandDepth"))
+      .setDesc(this.plugin.t("defaultExpandDepthDesc"))
+      .addSlider((slider) => {
+        slider
+          .setLimits(1, 99, 1)
+          .setDynamicTooltip()
+          .setValue(this.plugin.settings.defaultExpandDepth)
+          .onChange(async (value) => {
+            this.plugin.settings.defaultExpandDepth = value;
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("layoutDirection"))
+      .setDesc(this.plugin.t("layoutDirectionDesc"))
+      .addDropdown((dropdown) => {
+        dropdown
+          .addOption("right", this.plugin.t("horizontalRight"))
+          .addOption("balanced", this.plugin.t("balanced"))
+          .setValue(this.plugin.settings.layoutDirection)
+          .onChange(async (value) => {
+            this.plugin.settings.layoutDirection = value as LayoutDirection;
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("layoutAnimation"))
+      .setDesc(this.plugin.t("layoutAnimationDesc"))
+      .addToggle((toggle) => {
+        toggle
+          .setValue(this.plugin.settings.animations)
+          .onChange(async (value) => {
+            this.plugin.settings.animations = value;
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("showAssociationLinks"))
+      .setDesc(this.plugin.t("showAssociationLinksDesc"))
+      .addToggle((toggle) => {
+        toggle
+          .setValue(this.plugin.settings.showAssociationLinks)
+          .onChange(async (value) => {
+            this.plugin.settings.showAssociationLinks = value;
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("branchColors"))
+      .setDesc(this.plugin.t("branchColorsDesc"))
+      .addTextArea((text) => {
+        text
+          .setValue(this.plugin.settings.branchColors.join(", "))
+          .onChange(async (value) => {
+            const colors = value.split(",").map((item) => item.trim()).filter(Boolean);
+            this.plugin.settings.branchColors = colors.length > 0 ? colors : DEFAULT_SETTINGS.branchColors;
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+          });
+        text.inputEl.rows = 2;
+      });
+
+    const paletteEl = containerEl.createDiv({ cls: "onemind-settings-palette" });
+    this.plugin.settings.branchColors.forEach((color, index) => {
+      new Setting(paletteEl)
+        .setName(`${this.plugin.t("branchColors")} ${index + 1}`)
+        .addColorPicker((picker) => {
+          picker
+            .setValue(color)
+            .onChange(async (value) => {
+              this.plugin.settings.branchColors[index] = value;
+              await this.plugin.saveSettings();
+              this.plugin.refreshOpenViews();
+            });
+        });
+    });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("resetBranchColors"))
+      .addButton((button) => {
+        button
+          .setButtonText(this.plugin.t("resetBranchColors"))
+          .onClick(async () => {
+            this.plugin.settings.branchColors = [...DEFAULT_SETTINGS.branchColors];
+            await this.plugin.saveSettings();
+            this.plugin.refreshOpenViews();
+            this.display();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("pngScale"))
+      .setDesc(this.plugin.t("pngScaleDesc"))
+      .addSlider((slider) => {
+        slider
+          .setLimits(1, 4, 1)
+          .setDynamicTooltip()
+          .setValue(this.plugin.settings.exportScale)
+          .onChange(async (value) => {
+            this.plugin.settings.exportScale = value;
+            await this.plugin.saveSettings();
+          });
+      });
+
+    new Setting(containerEl)
+      .setName(this.plugin.t("transparentPng"))
+      .setDesc(this.plugin.t("transparentPngDesc"))
+      .addToggle((toggle) => {
+        toggle
+          .setValue(this.plugin.settings.exportTransparentBackground)
+          .onChange(async (value) => {
+            this.plugin.settings.exportTransparentBackground = value;
+            await this.plugin.saveSettings();
+          });
+      });
+  }
+}
+
+class EmojiSuggestModal extends SuggestModal<string> {
+  private onChoose: (emoji: string) => void;
+
+  constructor(app: App, placeholder: string, onChoose: (emoji: string) => void) {
+    super(app);
+    this.onChoose = onChoose;
+    this.setPlaceholder(placeholder);
+  }
+
+  getSuggestions(query: string): string[] {
+    const normalized = query.trim().toLowerCase();
+    if (!normalized) return EMOJI_OPTIONS;
+    return EMOJI_OPTIONS.filter((emoji) => emoji.includes(normalized));
+  }
+
+  renderSuggestion(emoji: string, el: HTMLElement): void {
+    el.createSpan({ cls: "onemind-emoji-suggestion", text: emoji });
+  }
+
+  onChooseSuggestion(emoji: string): void {
+    this.onChoose(emoji);
+  }
+}
+
+class TagInputModal extends Modal {
+  private placeholder: string;
+  private onSubmit: (tag: string) => void;
+
+  constructor(app: App, placeholder: string, onSubmit: (tag: string) => void) {
+    super(app);
+    this.placeholder = placeholder;
+    this.onSubmit = onSubmit;
+  }
+
+  onOpen(): void {
+    this.contentEl.empty();
+    const input = this.contentEl.createEl("input", {
+      cls: "onemind-tag-input",
+      attr: { type: "text", placeholder: this.placeholder }
+    });
+    input.focus();
+    input.addEventListener("keydown", (event) => {
+      if (event.key === "Enter") {
+        event.preventDefault();
+        this.onSubmit(input.value);
+        this.close();
+      } else if (event.key === "Escape") {
+        event.preventDefault();
+        this.close();
+      }
+    });
+  }
+
+  onClose(): void {
+    this.contentEl.empty();
+  }
+}
+
+class TagSuggestModal extends SuggestModal<string> {
+  private tags: string[];
+  private onChoose: (tag: string) => void;
+
+  constructor(app: App, tags: string[], placeholder: string, onChoose: (tag: string) => void) {
+    super(app);
+    this.tags = tags;
+    this.onChoose = onChoose;
+    this.setPlaceholder(placeholder);
+  }
+
+  getSuggestions(query: string): string[] {
+    const normalized = normalizeTag(query).toLowerCase();
+    const matches = normalized ? this.tags.filter((tag) => tag.toLowerCase().includes(normalized)) : this.tags;
+    if (normalized && !matches.includes(normalized)) return [normalized, ...matches];
+    return matches;
+  }
+
+  renderSuggestion(tag: string, el: HTMLElement): void {
+    el.createSpan({ cls: "onemind-tag-suggestion", text: `#${tag}` });
+  }
+
+  onChooseSuggestion(tag: string): void {
+    this.onChoose(tag);
+  }
+}
+
+class ConflictModal extends Modal {
+  private labels: { title: string; body: string; reload: string; keep: string };
+  private onReload: () => Promise<void>;
+  private onKeep: () => Promise<void>;
+  private onCloseCallback: () => void;
+
+  constructor(app: App, labels: { title: string; body: string; reload: string; keep: string }, onReload: () => Promise<void>, onKeep: () => Promise<void>, onCloseCallback: () => void) {
+    super(app);
+    this.labels = labels;
+    this.onReload = onReload;
+    this.onKeep = onKeep;
+    this.onCloseCallback = onCloseCallback;
+  }
+
+  onOpen(): void {
+    const { contentEl } = this;
+    contentEl.empty();
+    contentEl.createEl("h2", { text: this.labels.title });
+    contentEl.createEl("p", {
+      text: this.labels.body
+    });
+
+    const actions = contentEl.createDiv({ cls: "onemind-modal-actions" });
+    const reloadButton = actions.createEl("button", { text: this.labels.reload });
+    reloadButton.onClickEvent(async () => {
+      this.close();
+      await this.onReload();
+    });
+
+    const keepButton = actions.createEl("button", { cls: "mod-cta", text: this.labels.keep });
+    keepButton.onClickEvent(async () => {
+      this.close();
+      await this.onKeep();
+    });
+  }
+
+  onClose(): void {
+    this.contentEl.empty();
+    this.onCloseCallback();
+  }
+}
+
+function parseMindDocument(source: string, fallbackTitle: string): MindDocument {
+  const lines = source.split(/\r?\n/);
+  let start = 0;
+
+  if (lines[0] === "---") {
+    const end = lines.findIndex((line, index) => index > 0 && line === "---");
+    if (end > 0) start = end + 1;
+  }
+
+  while (start < lines.length && lines[start].trim() === "") start += 1;
+
+  const firstMapLine = lines.findIndex((line, index) => {
+    if (index < start) return false;
+    return /^(#{1,6})\s+(.+?)\s*$/.test(line) || /^(\s*)[-*+]\s+(.+?)\s*$/.test(line);
+  });
+  const mapStart = firstMapLine === -1 ? lines.length : firstMapLine;
+  const prefix = mapStart > 0 ? `${lines.slice(0, mapStart).join("\n").replace(/\s*$/, "")}\n\n` : "";
+  const mapSource = lines.slice(mapStart).join("\n");
+  return { root: parseMarkdown(mapSource, fallbackTitle), prefix };
+}
+
+function parseMarkdown(source: string, fallbackTitle: string): MindNode {
+  const lines = source.split(/\r?\n/);
+  let root: MindNode | null = null;
+  let currentHeadingDepth = 1;
+  const stack: Array<{ depth: number; node: MindNode }> = [];
+
+  const ensureRoot = (): MindNode => {
+    if (!root) {
+      root = createNode(fallbackTitle || "Center topic", "heading");
+      stack.push({ depth: 1, node: root });
+    }
+    return root;
+  };
+
+  for (const line of lines) {
+    const heading = /^(#{1,6})\s+(.+?)\s*$/.exec(line);
+    if (heading) {
+      const depth = heading[1].length;
+      const node = createNode(heading[2], "heading");
+      if (!root && depth === 1) {
+        root = node;
+        stack.length = 0;
+        stack.push({ depth: 1, node });
+      } else {
+        ensureRoot();
+        while (stack.length > 0 && stack[stack.length - 1].depth >= depth) stack.pop();
+        const parent = stack[stack.length - 1]?.node ?? root;
+        parent.children.push(node);
+        stack.push({ depth, node });
+      }
+      currentHeadingDepth = depth;
+      continue;
+    }
+
+    const list = /^(\s*)[-*+]\s+(.+?)\s*$/.exec(line);
+    if (list) {
+      ensureRoot();
+      const indentDepth = Math.floor(list[1].replace(/\t/g, "  ").length / 2);
+      const depth = currentHeadingDepth + indentDepth + 1;
+      const node = createNode(list[2], "list");
+      while (stack.length > 0 && stack[stack.length - 1].depth >= depth) stack.pop();
+      const parent = stack[stack.length - 1]?.node ?? root;
+      parent.children.push(node);
+      stack.push({ depth, node });
+    }
+  }
+
+  return root ?? createNode(fallbackTitle || "Center topic", "heading");
+}
+
+function serializeMarkdown(root: MindNode): string {
+  const lines: string[] = [];
+  const visit = (node: MindNode, depth: number, insideList: boolean): void => {
+    const asHeading = node.kind === "heading" && !insideList && depth <= 6;
+    if (asHeading) {
+      lines.push(`${"#".repeat(depth)} ${node.text}`);
+    } else {
+      lines.push(`${"  ".repeat(Math.max(0, depth - 2))}- ${node.text}`);
+    }
+    for (const child of node.children) visit(child, depth + 1, insideList || !asHeading);
+  };
+  visit(root, 1, false);
+  return `${lines.join("\n")}\n`;
+}
+
+function renderSvgDocument(items: PositionedNode[], title: string, showAssociationLinks = true): string {
+  const bounds = getBounds(items);
+  const pad = 80;
+  const width = Math.ceil(bounds.width + pad * 2);
+  const height = Math.ceil(bounds.height + pad * 2);
+  const minX = bounds.minX - pad;
+  const minY = bounds.minY - pad;
+  const links = items
+    .filter((item) => item.parent)
+    .map((item) => {
+      const parent = items.find((candidate) => candidate.node === item.parent);
+      if (!parent) return "";
+      const rightward = item.x >= parent.x;
+      const x1 = rightward ? parent.x + parent.width : parent.x;
+      const y1 = parent.y + NODE_HEIGHT / 2;
+      const x2 = rightward ? item.x : item.x + item.width;
+      const y2 = item.y + NODE_HEIGHT / 2;
+      const handle = Math.max(60, Math.abs(x2 - x1) * 0.45) * (rightward ? 1 : -1);
+      return `<path d="M ${x1} ${y1} C ${x1 + handle} ${y1}, ${x2 - handle} ${y2}, ${x2} ${y2}" stroke="${escapeXml(item.color)}" fill="none" stroke-width="1.5" stroke-linecap="round" opacity="0.78"/>`;
+    })
+    .join("\n");
+
+  const associationLinks = showAssociationLinks ? renderAssociationSvgLinks(items) : "";
+
+  const nodes = items.map((item) => {
+    const isRoot = item.depth === 0;
+    const nodeWidth = item.width;
+    const fontSize = isRoot ? 18 : 14;
+    const fontWeight = isRoot ? 700 : 400;
+    const parsedNode = parseNodeText(item.node.text);
+    const exportLabel = [
+      parsedNode.emoji ? `${parsedNode.emoji} ${stripMarkdownFormatting(parsedNode.displayLabel)}` : stripMarkdownFormatting(parsedNode.displayLabel),
+      parsedNode.tags.map((tag) => `#${tag}`).join(" ")
+    ].filter(Boolean).join(" ");
+    const textLines = wrapSvgText(exportLabel, isRoot ? 20 : 22);
+    const text = textLines.map((line, index) => {
+      const dy = index === 0 ? 0 : fontSize + 3;
+      return `<tspan x="${item.x + 14}" dy="${dy}">${escapeXml(line)}</tspan>`;
+    }).join("");
+    const nodeHeight = Math.max(NODE_HEIGHT, 24 + textLines.length * (fontSize + 3));
+    return [
+      `<rect x="${item.x}" y="${item.y}" width="${nodeWidth}" height="${nodeHeight}" rx="8" fill="var(--onemind-node-bg, #ffffff)" stroke="${escapeXml(item.color)}" stroke-width="1.5"/>`,
+      `<text x="${item.x + 14}" y="${item.y + 24}" font-size="${fontSize}" font-weight="${fontWeight}" fill="var(--onemind-text, #1f2937)" font-family="-apple-system, BlinkMacSystemFont, Segoe UI, sans-serif">${text}</text>`
+    ].join("\n");
+  }).join("\n");
+
+  return [
+    `<?xml version="1.0" encoding="UTF-8"?>`,
+    `<svg xmlns="http://www.w3.org/2000/svg" width="${width}" height="${height}" viewBox="${minX} ${minY} ${width} ${height}" role="img" aria-label="${escapeXml(title)}">`,
+    `<style>:root{--onemind-node-bg:#fff;--onemind-text:#1f2937}@media(prefers-color-scheme:dark){:root{--onemind-node-bg:#1f1f1f;--onemind-text:#e5e7eb}} rect{filter:drop-shadow(0 6px 14px rgba(15,23,42,.10))}</style>`,
+    links,
+    associationLinks,
+    nodes,
+    `</svg>`
+  ].join("\n");
+}
+
+function renderAssociationSvgLinks(items: PositionedNode[]): string {
+  const byAnchor = new Map<string, PositionedNode>();
+  for (const item of items) byAnchor.set(slugifyNodeText(item.node.text), item);
+
+  const drawn = new Set<string>();
+  return items.flatMap((source) => {
+    return extractLocalWikilinkAnchors(source.node.text, null).map((anchor) => {
+      const target = byAnchor.get(anchor);
+      if (!target || target.node.id === source.node.id) return "";
+      const key = [source.node.id, target.node.id].sort().join(":");
+      if (drawn.has(key)) return "";
+      drawn.add(key);
+      const x1 = source.x + source.width / 2;
+      const y1 = source.y + NODE_HEIGHT / 2;
+      const x2 = target.x + target.width / 2;
+      const y2 = target.y + NODE_HEIGHT / 2;
+      const midX = (x1 + x2) / 2;
+      const lift = Math.max(80, Math.abs(y2 - y1) * 0.35);
+      const midY = Math.min(y1, y2) - lift;
+      return `<path d="M ${x1} ${y1} Q ${midX} ${midY}, ${x2} ${y2}" stroke="var(--onemind-association, #94a3b8)" fill="none" stroke-width="1.2" stroke-linecap="round" stroke-dasharray="5 5" opacity="0.72"/>`;
+    });
+  }).filter(Boolean).join("\n");
+}
+
+async function svgToPng(svg: string, scale: number, transparent: boolean): Promise<ArrayBuffer> {
+  const width = Number(/width="(\d+)"/.exec(svg)?.[1] ?? 1200);
+  const height = Number(/height="(\d+)"/.exec(svg)?.[1] ?? 800);
+  const multiplier = clamp(Math.round(scale), 1, 4);
+  const blob = new Blob([svg], { type: "image/svg+xml;charset=utf-8" });
+  const url = URL.createObjectURL(blob);
+
+  try {
+    const image = await new Promise<HTMLImageElement>((resolve, reject) => {
+      const img = new Image();
+      img.onload = () => resolve(img);
+      img.onerror = () => reject(new Error("Could not render SVG export."));
+      img.src = url;
+    });
+    const canvas = document.createElement("canvas");
+    canvas.width = width * multiplier;
+    canvas.height = height * multiplier;
+    const ctx = canvas.getContext("2d");
+    if (!ctx) throw new Error("Canvas is not available.");
+    if (!transparent) {
+      ctx.fillStyle = getComputedStyle(document.body).getPropertyValue("--background-primary").trim() || "#ffffff";
+      ctx.fillRect(0, 0, canvas.width, canvas.height);
+    }
+    ctx.scale(multiplier, multiplier);
+    ctx.drawImage(image, 0, 0, width, height);
+    const pngBlob = await new Promise<Blob>((resolve, reject) => {
+      canvas.toBlob((result) => result ? resolve(result) : reject(new Error("Could not encode PNG export.")), "image/png");
+    });
+    return await pngBlob.arrayBuffer();
+  } finally {
+    URL.revokeObjectURL(url);
+  }
+}
+
+function layoutTree(root: MindNode, colors: string[], direction: LayoutDirection): PositionedNode[] {
+  const result: PositionedNode[] = [];
+
+  const visibleChildren = (node: MindNode): MindNode[] => node.collapsed ? [] : node.children;
+  const measure = (node: MindNode): number => {
+    const children = visibleChildren(node);
+    if (children.length === 0) return NODE_HEIGHT;
+    return Math.max(NODE_HEIGHT, children.reduce((sum, child) => sum + measure(child), 0) + ROW_GAP * (children.length - 1));
+  };
+
+  const place = (node: MindNode, parent: MindNode | null, depth: number, x: number, top: number, color: string, side: -1 | 1): void => {
+    const subtreeHeight = measure(node);
+    const y = top + subtreeHeight / 2 - NODE_HEIGHT / 2;
+    const width = depth === 0 ? 200 : NODE_WIDTH;
+    result.push({ node, parent, depth, x, y, width, height: NODE_HEIGHT, color, side });
+
+    let childTop = top;
+    const children = visibleChildren(node);
+    children.forEach((child, index) => {
+      const childColor = depth === 0 ? colors[index % colors.length] : color;
+      place(child, node, depth + 1, x + side * LEVEL_GAP, childTop, childColor, side);
+      childTop += measure(child) + ROW_GAP;
+    });
+  };
+
+  if (direction === "balanced" && !root.collapsed && root.children.length > 1) {
+    const children = visibleChildren(root);
+    const left = children.filter((_, index) => index % 2 === 1);
+    const right = children.filter((_, index) => index % 2 === 0);
+    const heightOf = (nodes: MindNode[]): number => nodes.length === 0 ? NODE_HEIGHT : nodes.reduce((sum, child) => sum + measure(child), 0) + ROW_GAP * (nodes.length - 1);
+    const leftHeight = heightOf(left);
+    const rightHeight = heightOf(right);
+    const totalHeight = Math.max(leftHeight, rightHeight, NODE_HEIGHT);
+    result.push({ node: root, parent: null, depth: 0, x: 0, y: totalHeight / 2 - NODE_HEIGHT / 2, width: 200, height: NODE_HEIGHT, color: colors[0], side: 1 });
+
+    let leftTop = totalHeight / 2 - leftHeight / 2;
+    left.forEach((child, index) => {
+      const originalIndex = children.findIndex((candidate) => candidate === child);
+      place(child, root, 1, -LEVEL_GAP, leftTop, colors[originalIndex % colors.length], -1);
+      leftTop += measure(child) + ROW_GAP;
+    });
+
+    let rightTop = totalHeight / 2 - rightHeight / 2;
+    right.forEach((child) => {
+      const originalIndex = children.findIndex((candidate) => candidate === child);
+      place(child, root, 1, LEVEL_GAP, rightTop, colors[originalIndex % colors.length], 1);
+      rightTop += measure(child) + ROW_GAP;
+    });
+  } else {
+    place(root, null, 0, 0, 0, colors[0], 1);
+  }
+  return result;
+}
+
+function renderInlineMarkdown(container: HTMLElement, text: string, app: App): void {
+  const pattern = /(\[\[[^\]]+\]\]|`[^`]+`|\*\*[^*]+\*\*)/g;
+  let last = 0;
+  for (const match of text.matchAll(pattern)) {
+    if (match.index === undefined) continue;
+    if (match.index > last) container.appendText(text.slice(last, match.index));
+    const token = match[0];
+    if (token.startsWith("[[")) {
+      const target = token.slice(2, -2);
+      const link = container.createEl("span", { cls: "onemind-wikilink", text: target });
+      link.onClickEvent((event) => {
+        event.stopPropagation();
+        void app.workspace.openLinkText(target, "", false);
+      });
+    } else if (token.startsWith("`")) {
+      container.createEl("code", { text: token.slice(1, -1) });
+    } else {
+      container.createEl("strong", { text: token.slice(2, -2) });
+    }
+    last = match.index + token.length;
+  }
+  if (last < text.length) container.appendText(text.slice(last));
+}
+
+function parseEmojiText(text: string): ParsedEmojiText {
+  const trimmed = text.trimStart();
+  const match = /^((?:\p{Extended_Pictographic}(?:\uFE0F|\uFE0E)?)(?:\u200D(?:\p{Extended_Pictographic})(?:\uFE0F|\uFE0E)?)*)\s+(.+)$/u.exec(trimmed);
+  if (!match) return { emoji: null, label: text };
+  return { emoji: match[1], label: match[2].trimStart() || "Untitled" };
+}
+
+function parseNodeText(text: string): ParsedNodeText {
+  const parsed = parseEmojiText(text);
+  const tags: string[] = [];
+  const displayLabel = parsed.label
+    .replace(/(^|\s)#([\p{Letter}\p{Number}_/-]+)/gu, (_match, prefix: string, tag: string) => {
+      tags.push(tag);
+      return prefix;
+    })
+    .replace(/\s{2,}/g, " ")
+    .trim() || parsed.label;
+  return { ...parsed, tags, displayLabel };
+}
+
+function normalizeTag(tag: string): string {
+  return tag.trim().replace(/^#/, "").replace(/[^\p{Letter}\p{Number}_/-]/gu, "");
+}
+
+function addTagToText(text: string, tag: string): string {
+  const parsed = parseNodeText(text);
+  if (parsed.tags.includes(tag)) return text;
+  return `${text.trim()} #${tag}`;
+}
+
+function removeNodeTags(text: string): string {
+  const parsed = parseNodeText(text);
+  const prefix = parsed.emoji ? `${parsed.emoji} ` : "";
+  return `${prefix}${parsed.displayLabel}`.trim() || "Untitled";
+}
+
+function stripInlineMarkdown(text: string): string {
+  const parsed = parseNodeText(text);
+  return stripMarkdownFormatting(`${parsed.emoji ? `${parsed.emoji} ` : ""}${parsed.displayLabel}${parsed.tags.length > 0 ? ` ${parsed.tags.map((tag) => `#${tag}`).join(" ")}` : ""}`);
+}
+
+function stripMarkdownFormatting(text: string): string {
+  return text
+    .replace(/\[\[([^\]|]+)(?:\|([^\]]+))?\]\]/g, (_, target: string, alias: string | undefined) => alias ?? target)
+    .replace(/`([^`]+)`/g, "$1")
+    .replace(/\*\*([^*]+)\*\*/g, "$1");
+}
+
+function extractLocalWikilinkAnchors(text: string, file: TFile | null): string[] {
+  const anchors: string[] = [];
+  const basename = file?.basename.toLowerCase();
+  const pathBase = file?.path.replace(/\.md$/i, "").toLowerCase();
+  const pattern = /\[\[([^\]|]+)(?:\|[^\]]+)?\]\]/g;
+  for (const match of text.matchAll(pattern)) {
+    const raw = match[1].trim();
+    if (!raw) continue;
+    const [rawFile, rawHeading] = raw.includes("#") ? raw.split("#", 2) : ["", raw];
+    const targetFile = rawFile.trim().replace(/\.md$/i, "").toLowerCase();
+    if (targetFile && targetFile !== basename && targetFile !== pathBase) continue;
+    anchors.push(slugifyNodeText(rawHeading));
+  }
+  return anchors.filter(Boolean);
+}
+
+function wrapSvgText(text: string, maxChars: number): string[] {
+  const words = text.trim().split(/\s+/).filter(Boolean);
+  if (words.length === 0) return ["Untitled"];
+  const lines: string[] = [];
+  let current = "";
+  for (const word of words) {
+    if (word.length > maxChars) {
+      if (current) lines.push(current);
+      for (let index = 0; index < word.length; index += maxChars) {
+        lines.push(word.slice(index, index + maxChars));
+      }
+      current = "";
+      continue;
+    }
+    const next = current ? `${current} ${word}` : word;
+    if (next.length > maxChars && current) {
+      lines.push(current);
+      current = word;
+    } else {
+      current = next;
+    }
+  }
+  if (current) lines.push(current);
+  return lines.slice(0, 4);
+}
+
+function escapeXml(text: string): string {
+  return text
+    .replace(/&/g, "&amp;")
+    .replace(/</g, "&lt;")
+    .replace(/>/g, "&gt;")
+    .replace(/"/g, "&quot;");
+}
+
+function createNode(text: string, kind: NodeKind): MindNode {
+  return {
+    id: `node-${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 8)}`,
+    text: text.trim() || "Untitled",
+    kind,
+    children: [],
+    collapsed: false
+  };
+}
+
+function cloneNode(node: MindNode): MindNode {
+  return {
+    id: node.id,
+    text: node.text,
+    kind: node.kind,
+    collapsed: node.collapsed,
+    children: node.children.map((child) => cloneNode(child))
+  };
+}
+
+function cloneNodeWithNewIds(node: MindNode): MindNode {
+  return {
+    id: createNode(node.text, node.kind).id,
+    text: node.text,
+    kind: node.kind,
+    collapsed: node.collapsed,
+    children: node.children.map((child) => cloneNodeWithNewIds(child))
+  };
+}
+
+function filterTreeByTag(root: MindNode, tag: string): MindNode | null {
+  const children = root.children
+    .map((child) => filterTreeByTag(child, tag))
+    .filter((child): child is MindNode => Boolean(child));
+  if (parseNodeText(root.text).tags.includes(tag) || children.length > 0) {
+    return { ...root, collapsed: false, children };
+  }
+  return null;
+}
+
+function subtreeHasTag(root: MindNode, tag: string): boolean {
+  return parseNodeText(root.text).tags.includes(tag) || root.children.some((child) => subtreeHasTag(child, tag));
+}
+
+function normalizePastedNodeKinds(node: MindNode, preferredKind: NodeKind, depth: number): void {
+  node.id = createNode(node.text, node.kind).id;
+  node.kind = preferredKind === "heading" && depth <= 5 ? "heading" : "list";
+  for (const child of node.children) normalizePastedNodeKinds(child, node.kind, depth + 1);
+}
+
+function applyDefaultExpandDepth(root: MindNode, maxDepth: number, depth = 0): void {
+  root.collapsed = depth >= maxDepth;
+  for (const child of root.children) applyDefaultExpandDepth(child, maxDepth, depth + 1);
+}
+
+function setCollapsedRecursive(root: MindNode, collapsed: boolean): void {
+  root.collapsed = collapsed;
+  for (const child of root.children) setCollapsedRecursive(child, collapsed);
+}
+
+function nextKind(parent: MindNode, parentDepth: number): NodeKind {
+  if (parent.kind === "heading" && parentDepth < 5) return "heading";
+  return "list";
+}
+
+function findNode(root: MindNode, id: string): MindNode | null {
+  if (root.id === id) return root;
+  for (const child of root.children) {
+    const found = findNode(child, id);
+    if (found) return found;
+  }
+  return null;
+}
+
+function findNodeByAnchor(root: MindNode, anchor: string): MindNode | null {
+  const normalized = normalizeAnchor(anchor);
+  if (slugifyNodeText(root.text) === normalized) return root;
+  for (const child of root.children) {
+    const found = findNodeByAnchor(child, normalized);
+    if (found) return found;
+  }
+  return null;
+}
+
+function findParent(root: MindNode, id: string): MindNode | null {
+  for (const child of root.children) {
+    if (child.id === id) return root;
+    const found = findParent(child, id);
+    if (found) return found;
+  }
+  return null;
+}
+
+function deleteNodes(root: MindNode, ids: Set<string>): void {
+  root.children = root.children.filter((child) => !ids.has(child.id));
+  for (const child of root.children) deleteNodes(child, ids);
+}
+
+function flattenNodes(root: MindNode): MindNode[] {
+  const nodes: MindNode[] = [];
+  const visit = (node: MindNode): void => {
+    nodes.push(node);
+    for (const child of node.children) visit(child);
+  };
+  visit(root);
+  return nodes;
+}
+
+function findPath(root: MindNode, id: string): MindNode[] {
+  if (root.id === id) return [root];
+  for (const child of root.children) {
+    const path = findPath(child, id);
+    if (path.length > 0) return [root, ...path];
+  }
+  return [];
+}
+
+function getDescendantIds(node: MindNode | null): string[] {
+  if (!node) return [];
+  const ids: string[] = [];
+  const visit = (current: MindNode): void => {
+    for (const child of current.children) {
+      ids.push(child.id);
+      visit(child);
+    }
+  };
+  visit(node);
+  return ids;
+}
+
+function moveNode(root: MindNode, nodeId: string, target: DropTarget): boolean {
+  if (nodeId === root.id || nodeId === target.parentId) return false;
+  const oldParent = findParent(root, nodeId);
+  const newParent = findNode(root, target.parentId);
+  if (!oldParent || !newParent) return false;
+
+  const movingIndex = oldParent.children.findIndex((child) => child.id === nodeId);
+  if (movingIndex === -1) return false;
+  const [moving] = oldParent.children.splice(movingIndex, 1);
+  if (!moving) return false;
+
+  let insertIndex = target.mode === "child" ? newParent.children.length : target.index;
+  if (oldParent.id === newParent.id && movingIndex < insertIndex) insertIndex -= 1;
+  insertIndex = clamp(insertIndex, 0, newParent.children.length);
+  moving.kind = nextKind(newParent, getNodeDepth(root, newParent.id));
+  newParent.children.splice(insertIndex, 0, moving);
+  newParent.collapsed = false;
+  return true;
+}
+
+function moveNodeByKeyboard(root: MindNode, nodeId: string, direction: "up" | "down" | "indent" | "outdent"): boolean {
+  const parent = findParent(root, nodeId);
+  const node = findNode(root, nodeId);
+  if (!parent || !node) return false;
+  const index = parent.children.findIndex((child) => child.id === nodeId);
+  if (index === -1) return false;
+
+  if (direction === "up") {
+    if (index === 0) return false;
+    [parent.children[index - 1], parent.children[index]] = [parent.children[index], parent.children[index - 1]];
+    return true;
+  }
+
+  if (direction === "down") {
+    if (index >= parent.children.length - 1) return false;
+    [parent.children[index], parent.children[index + 1]] = [parent.children[index + 1], parent.children[index]];
+    return true;
+  }
+
+  if (direction === "indent") {
+    if (index === 0) return false;
+    const newParent = parent.children[index - 1];
+    parent.children.splice(index, 1);
+    node.kind = nextKind(newParent, getNodeDepth(root, newParent.id));
+    newParent.children.push(node);
+    newParent.collapsed = false;
+    return true;
+  }
+
+  const grandParent = findParent(root, parent.id);
+  if (!grandParent) return false;
+  parent.children.splice(index, 1);
+  const parentIndex = grandParent.children.findIndex((child) => child.id === parent.id);
+  node.kind = nextKind(grandParent, getNodeDepth(root, grandParent.id));
+  grandParent.children.splice(parentIndex + 1, 0, node);
+  return true;
+}
+
+function normalizeAnchor(anchor: string): string {
+  return decodeURIComponent(anchor)
+    .replace(/^#+/, "")
+    .trim()
+    .toLowerCase()
+    .replace(/\s+/g, "-");
+}
+
+function slugifyNodeText(text: string): string {
+  return stripInlineMarkdown(text)
+    .trim()
+    .toLowerCase()
+    .replace(/[^\p{Letter}\p{Number}\p{Emoji_Presentation}\s-]/gu, "")
+    .replace(/\s+/g, "-");
+}
+
+function getNodeDepth(root: MindNode, id: string, depth = 0): number {
+  if (root.id === id) return depth;
+  for (const child of root.children) {
+    const found = getNodeDepth(child, id, depth + 1);
+    if (found !== -1) return found;
+  }
+  return -1;
+}
+
+function getBounds(items: PositionedNode[]): { minX: number; minY: number; width: number; height: number } {
+  const minX = Math.min(...items.map((item) => item.x));
+  const minY = Math.min(...items.map((item) => item.y));
+  const maxX = Math.max(...items.map((item) => item.x + item.width));
+  const maxY = Math.max(...items.map((item) => item.y + item.height));
+  return { minX, minY, width: maxX - minX, height: maxY - minY };
+}
+
+function clamp(value: number, min: number, max: number): number {
+  return Math.max(min, Math.min(max, value));
+}
+
+function createSvg<K extends keyof SVGElementTagNameMap>(tag: K): SVGElementTagNameMap[K] {
+  return document.createElementNS("http://www.w3.org/2000/svg", tag);
+}
diff --git a/manifest.json b/manifest.json
new file mode 100644
index 0000000..6b2564d
--- /dev/null
+++ b/manifest.json
@@ -0,0 +1,10 @@
+{
+  "id": "onemind",
+  "name": "OneMind",
+  "version": "0.1.0",
+  "minAppVersion": "1.5.0",
+  "description": "Edit Markdown as a clean, keyboard-friendly mind map.",
+  "author": "",
+  "authorUrl": "",
+  "isDesktopOnly": false
+}
diff --git a/ob思维导图插件.md b/ob思维导图插件.md
new file mode 100644
index 0000000..34f60fb
--- /dev/null
+++ b/ob思维导图插件.md
@@ -0,0 +1,302 @@
+---
+title: Obsidian 思维导图插件 - 产品方案
+created: 2026-05-16
+status: draft
+tags:
+  - 产品方案
+  - obsidian插件
+  - 思维导图
+---
+
+# Obsidian 思维导图插件 - 产品方案
+
+## 1. 产品概述
+
+### 1.1 插件名称
+
+**OneMind**
+
+> "One" from ONE PIECE + Einstein's "Mind"。
+> 像路飞寻找 One Piece 一样，每个思维导图都是一次寻找"思维宝藏"的旅程。
+> 极简，好记，搜索友好。
+
+### 1.2 一句话定位
+
+一款以编辑体验为核心的 Obsidian 思维导图插件，让用户直接在极简风格的思维导图上思考和组织想法，所有内容实时同步为纯 Markdown 格式。
+
+### 1.2 解决的核心问题
+
+| 现有痛点 | 我们的解法 |
+|---------|-----------|
+| 现有插件只是 markdown 的只读可视化 | 编辑器优先，思维导图本身就是工作区 |
+| 视觉粗糙、风格老旧 | Notion/Linear 式极简美学 |
+| 编辑能力弱，几乎不能在导图上操作 | 完整的键盘+鼠标编辑体验 |
+| 独立文件格式，破坏纯文本理念 | 纯 Markdown 双向同步 |
+
+### 1.3 目标用户
+
+- Obsidian 重度用户，习惯用标题和列表组织内容
+- 不满足于线性文本，需要可视化思考的人群
+- 对工具有审美要求，不愿接受丑陋界面的用户
+
+### 1.4 发布目标
+
+社区插件，上架 Obsidian Plugin Marketplace。
+
+---
+
+## 2. 核心功能（MVP）
+
+### 2.1 视图切换
+
+- 命令面板命令或图标按钮：在 Markdown 编辑视图和思维导图视图之间切换
+- 思维导图视图是一个独立的全屏编辑视图（非侧边栏预览）
+- 切换时保留光标/选中节点的上下文
+
+### 2.2 Markdown ↔ 思维导图映射规则
+
+```
+# 中心主题        →  根节点
+## 分支一          →  一级子节点
+### 子节点 1.1     →  二级子节点
+- 列表项          →  叶子节点
+- **加粗**        →  节点加粗样式
+- [[链接]]        →  可点击跳转的链接节点
+- `代码`          →  节点内行内代码样式
+```
+
+- 标题层级 (H1-H6) → 节点层级
+- 无序列表 `- item` → 当前标题下的子节点
+- 支持混合使用标题和列表
+
+### 2.3 节点编辑
+
+| 操作 | 快捷键 | 说明 |
+|------|--------|------|
+| 添加子节点 | `Tab` | 在选中节点下创建子节点，自动进入编辑模式 |
+| 添加同级节点 | `Enter` | 在选中节点后创建同级节点，自动进入编辑模式 |
+| 编辑节点文本 | `F2` 或双击 | 进入文本编辑模式 |
+| 删除节点 | `Delete` / `Backspace` | 删除选中节点及其所有子节点 |
+| 展开/折叠 | `Space` | 折叠/展开子节点 |
+| 撤销/重做 | `Ctrl+Z` / `Ctrl+Shift+Z` | 撤销/重做操作 |
+
+### 2.4 节点拖拽
+
+- 拖拽节点到另一个节点上 → 成为其子节点
+- 拖拽节点到两个节点之间 → 插入为同级节点
+- 拖拽时显示视觉指示（高亮放置位置）
+- 拖拽完成后实时更新 Markdown
+
+### 2.5 画布操作
+
+| 操作 | 方式 | 说明 |
+|------|------|------|
+| 平移 | 鼠标拖拽空白区域 / 方向键 | 移动画布视口 |
+| 缩放 | 滚轮 / `Ctrl +/-` | 缩放画布 |
+| 适应窗口 | `Ctrl+Shift+F` | 自动缩放以显示全部内容 |
+| 聚焦选中 | `Ctrl+F` | 平移画布使选中节点居中 |
+
+### 2.6 实时 Markdown 同步
+
+- 在思维导图视图中的任何编辑，实时更新对应的 Markdown 源文件
+- Markdown 文件在外部被修改时（如同步、其他编辑器），思维导图视图自动重新解析
+- 同步策略：以 Markdown 为 source of truth，导图编辑通过修改 Markdown 文本来实现
+- 支持 Obsidian 原生撤销栈（Undo/Redo 走 Obsidian 的 editor transaction）
+
+---
+
+## 3. 视觉设计
+
+### 3.1 设计原则
+
+- **克制**：细线条、少颜色、多留白
+- **清晰**：层次分明，一眼看出结构关系
+- **流畅**：动画自然，过渡丝滑
+
+### 3.2 设计规范
+
+```
+连线：
+  - 线宽：1.5px
+  - 线型：贝塞尔曲线（水平方向展开）
+  - 颜色：跟随节点层级自动分配柔和色系
+
+节点：
+  - 圆角：8px
+  - 内边距：8px 16px
+  - 根节点：较大，加粗字体
+  - 分支节点：适中
+  - 叶子节点：较小
+
+字体：
+  - 使用 Obsidian 主题字体（跟随用户设置）
+  - 根节点：18px 加粗
+  - 子节点：14px 常规
+
+配色：
+  - 跟随 Obsidian 主题（亮色/暗色自动适配）
+  - 分支颜色自动分配，色板预设（可配置）
+  - 默认色板：蓝、绿、橙、紫、粉 5色柔和色系
+
+间距：
+  - 同级节点垂直间距：16px
+  - 父子节点水平间距：60px
+  - 根节点居中显示
+```
+
+### 3.3 布局方向
+
+- **默认**：水平树形布局（根节点在左，分支向右展开）
+- **可选**：水平双向布局（根节点居中，分支向两侧展开）
+- 自动布局算法：每次编辑后重新计算节点位置，带有平滑过渡动画
+
+---
+
+## 4. 技术架构
+
+### 4.1 渲染层
+
+```
+┌─────────────────────────────────┐
+│         Obsidian View           │
+│  ┌───────────────────────────┐  │
+│  │     Canvas Container      │  │
+│  │                           │  │
+│  │   ┌─────┐   ┌─────┐      │  │
+│  │   │ DOM │───│ DOM │      │  │
+│  │   │ 节点│ SVG│ 节点│      │  │
+│  │   └─────┘连线└─────┘      │  │
+│  │                           │  │
+│  └───────────────────────────┘  │
+└─────────────────────────────────┘
+```
+
+- **SVG 层**：负责绘制节点之间的贝塞尔曲线连线
+- **DOM 层**：负责渲染节点卡片（文本、样式、交互），叠加在 SVG 之上
+- **容器**：可缩放、可平移的画布容器，使用 CSS `transform` 实现
+
+### 4.2 数据流
+
+```
+Markdown 源文件
+      │
+      ▼
+  Markdown Parser ──→ Tree Data Model ──→ Layout Engine ──→ Renderer (SVG + DOM)
+      ▲                                       │
+      │                                       ▼
+  Markdown Writer ◄── Tree Data Model ◄── User Interaction (编辑/拖拽)
+```
+
+- **Markdown Parser**：解析标题层级和列表结构，构建树形数据模型
+- **Tree Data Model**：内存中的树形数据结构，每个节点包含 id、text、children、style 等属性
+- **Layout Engine**：根据树结构计算每个节点的 x/y 坐标，实现自动布局算法
+- **Renderer**：根据布局结果渲染 SVG 连线和 DOM 节点
+- **Markdown Writer**：将树形数据模型序列化回 Markdown 文本
+
+### 4.3 自动布局算法
+
+- 采用紧凑树形布局（Compact Tree Layout）
+- 递归计算每个子树的高度，均匀分配垂直空间
+- 编辑操作后增量更新布局，非全量重排（性能考虑）
+- 位置变化时使用 CSS transition 实现平滑动画过渡
+
+### 4.4 Markdown 同步策略
+
+- **编辑导图时**：修改 Tree Data Model → 序列化为 Markdown → 通过 Obsidian Editor API 写入文件
+- **文件被外部修改时**：监听 `vault.on('modify')` 事件 → 重新解析 Markdown → 差量更新 Tree Data Model → 增量重渲染
+- **冲突处理**：以 Markdown 文件为 source of truth；如果用户正在编辑节点时文件被外部修改，提示用户选择保留哪个版本
+
+### 4.5 技术栈
+
+| 模块 | 技术 | 说明 |
+|------|------|------|
+| 插件框架 | Obsidian API + TypeScript | 标准 Obsidian 插件开发 |
+| 渲染 | SVG + DOM | 不依赖额外渲染库 |
+| Markdown 解析 | 内置轻量解析器 | 只处理标题和列表层级 |
+| 构建工具 | esbuild / Vite | Obsidian 插件标准构建 |
+
+---
+
+## 5. 插件设置
+
+### 5.1 设置项
+
+```
+外观设置：
+  - 布局方向：水平向右 / 水平双向
+  - 分支颜色方案：预设色板选择 / 自定义色板
+  - 跟随 Obsidian 主题：开/关
+
+行为设置：
+  - 自动保存延迟：输入后多久同步到 Markdown（默认 300ms）
+  - 展开折叠动画：开/关
+  - 展开深度：首次打开时默认展开到第几层（默认全部展开）
+
+快捷键：
+  - 所有操作均支持自定义快捷键（走 Obsidian 原生快捷键系统）
+```
+
+---
+
+## 6. 发布计划
+
+### Phase 1：核心 MVP
+
+- [ ] 插件骨架：注册 View，实现视图切换
+- [ ] Markdown 解析器：标题+列表 → 树形结构
+- [ ] 渲染引擎：SVG 连线 + DOM 节点
+- [ ] 自动布局算法
+- [ ] 基础编辑：添加/删除/编辑节点文本
+- [ ] Markdown 同步（单向：导图 → Markdown）
+- [ ] 缩放和平移
+- [ ] 暗色/亮色主题适配
+
+### Phase 2：交互增强
+
+- [ ] 节点拖拽排序
+- [ ] 展开/折叠子节点
+- [ ] Markdown 反向同步（文件修改 → 导图更新）
+- [ ] 节点搜索和导航
+- [ ] 快捷键完善
+- [ ] 平滑动画过渡
+
+### Phase 3：体验打磨
+
+- [ ] 多种布局方向支持
+- [ ] 节点样式自定义（颜色、标记）
+- [ ] 导出为 PNG/SVG
+- [ ] 设置面板完善
+- [ ] 中英文国际化
+- [ ] 移动端适配
+
+### Phase 4：高级功能
+
+- [ ] 节点间关联线（跨分支连接）
+- [ ] 节点图标/标记系统
+- [ ] 多选和批量操作
+- [ ] 大纲缩略图导航
+- [ ] 协同编辑支持（与 Obsidian Sync 兼容）
+
+---
+
+## 7. 竞品对比
+
+| 能力 | 我们的插件 | Mind Map (Markmap) | Enhancing Mindmap | Canvas Mindmap | XMind (独立) |
+|------|-----------|-------------------|------------------|----------------|-------------|
+| 编辑体验 | ⭐⭐⭐ 完整编辑 | ❌ 只读 | ⭐ 基础编辑 | ⭐ 基础编辑 | ⭐⭐⭐ 完整 |
+| 视觉美学 | ⭐⭐⭐ 极简 | ⭐ 一般 | ⭐⭐ 老旧 | ⭐ 一般 | ⭐⭐⭐ 精美 |
+| Markdown 同步 | ⭐⭐⭐ 双向实时 | ⭐ 单向只读 | ⭐⭐ 基础 | ❌ 无 | ❌ 纯私有格式 |
+| Obsidian 原生 | ⭐⭐⭐ 深度 | ⭐⭐ 中等 | ⭐⭐ 中等 | ⭐⭐⭐ Canvas | ❌ 独立应用 |
+| 键盘操作 | ⭐⭐⭐ 完整 | ❌ 无 | ⭐⭐ 基础 | ⭐⭐ 基础 | ⭐⭐⭐ 完整 |
+
+**核心差异化**：唯一一款同时做到"编辑器级体验 + 极简美学 + 纯 Markdown 同步"的 Obsidian 思维导图插件。
+
+---
+
+## 8. 开放问题
+
+- [x] 插件名称：OneMind
+- [x] 支持 `Obsidian URI` 协议跳转到特定节点（如 `obsidian://open?vault=xxx&file=yyy#heading-zzz` 打开后自动定位到对应节点）
+- [x] ~~是否支持 Dataview 查询结果作为节点内容~~ 暂不考虑
+- [x] ~~是否支持 `callout` / `代码块` 在节点中的显示~~ 暂不考虑
+- [x] 性能基准：支持 1000 节点的思维导图（布局计算和渲染均需在可接受时间内完成）
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..bead3de
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,657 @@
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+}
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..fc9fb5c
--- /dev/null
+++ b/package.json
@@ -0,0 +1,24 @@
+{
+  "name": "onemind",
+  "version": "0.1.0",
+  "description": "An editor-first mind map plugin for Obsidian that syncs with plain Markdown.",
+  "main": "main.js",
+  "scripts": {
+    "dev": "node esbuild.config.mjs",
+    "build": "tsc -noEmit -skipLibCheck && node esbuild.config.mjs production"
+  },
+  "keywords": [
+    "obsidian",
+    "mind-map",
+    "markdown"
+  ],
+  "author": "",
+  "license": "MIT",
+  "devDependencies": {
+    "@types/node": "^20.11.30",
+    "builtin-modules": "^3.3.0",
+    "esbuild": "^0.25.12",
+    "obsidian": "^1.5.12",
+    "typescript": "^5.4.5"
+  }
+}
diff --git a/styles.css b/styles.css
new file mode 100644
index 0000000..ec6b7c9
--- /dev/null
+++ b/styles.css
@@ -0,0 +1,506 @@
+.onemind-view {
+  --onemind-node-bg: var(--background-primary);
+  --onemind-node-border: var(--background-modifier-border);
+  --onemind-node-shadow: rgba(15, 23, 42, 0.08);
+  display: flex;
+  flex-direction: column;
+  height: 100%;
+  overflow: hidden;
+  background: var(--background-primary);
+}
+
+.theme-dark .onemind-view {
+  --onemind-node-shadow: rgba(0, 0, 0, 0.28);
+}
+
+.onemind-toolbar {
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 6px;
+  min-height: 40px;
+  padding: 6px 10px;
+  border-bottom: 1px solid var(--background-modifier-border);
+  background: var(--background-primary);
+  flex: 0 0 auto;
+}
+
+.onemind-search {
+  position: relative;
+  margin-left: 6px;
+  width: min(260px, 34vw);
+  min-width: 140px;
+}
+
+@media (max-width: 560px) {
+  .onemind-toolbar {
+    align-items: stretch;
+  }
+
+  .onemind-search {
+    order: 2;
+    width: 100%;
+    min-width: 100%;
+    margin-left: 0;
+  }
+
+  .onemind-node {
+    width: 168px;
+    padding-left: 12px;
+    padding-right: 10px;
+  }
+
+  .onemind-node.is-root {
+    width: 184px;
+  }
+
+  .onemind-outline {
+    left: 10px;
+    right: 10px;
+    top: 10px;
+    bottom: auto;
+    width: auto;
+    max-height: 42%;
+    min-width: 0;
+  }
+}
+
+.onemind-search-input {
+  width: 100%;
+  height: 28px;
+  padding: 4px 44px 4px 10px;
+  border: 1px solid var(--background-modifier-border);
+  border-radius: 6px;
+  background: var(--background-secondary);
+  color: var(--text-normal);
+  font-size: 13px;
+}
+
+.onemind-search-input:focus {
+  border-color: var(--interactive-accent);
+  box-shadow: 0 0 0 2px color-mix(in srgb, var(--interactive-accent) 18%, transparent);
+}
+
+.onemind-search-count {
+  position: absolute;
+  right: 8px;
+  top: 50%;
+  max-width: 36px;
+  transform: translateY(-50%);
+  color: var(--text-muted);
+  font-size: 11px;
+  line-height: 1;
+  text-align: right;
+  pointer-events: none;
+}
+
+.onemind-tool-button {
+  width: 28px;
+  height: 28px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid transparent;
+  border-radius: 6px;
+  color: var(--text-muted);
+}
+
+.onemind-tool-button:hover {
+  border-color: var(--background-modifier-border);
+  color: var(--text-normal);
+  background: var(--background-modifier-hover);
+}
+
+.onemind-canvas {
+  position: relative;
+  flex: 1 1 auto;
+  overflow: hidden;
+  cursor: grab;
+  touch-action: none;
+  background:
+    radial-gradient(circle at 1px 1px, var(--background-modifier-border) 1px, transparent 0) 0 0 / 28px 28px,
+    var(--background-primary);
+}
+
+.onemind-canvas:active {
+  cursor: grabbing;
+}
+
+.onemind-status {
+  position: absolute;
+  left: 12px;
+  bottom: 12px;
+  max-width: min(520px, calc(100% - 24px));
+  padding: 5px 8px;
+  border: 1px solid var(--background-modifier-border);
+  border-radius: 6px;
+  background: color-mix(in srgb, var(--background-primary) 92%, transparent);
+  color: var(--text-muted);
+  box-shadow: 0 8px 20px var(--onemind-node-shadow);
+  font-size: 12px;
+  line-height: 1.2;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  pointer-events: none;
+  z-index: 25;
+}
+
+.onemind-outline {
+  position: absolute;
+  right: 12px;
+  top: 12px;
+  bottom: 12px;
+  width: min(280px, 32vw);
+  min-width: 210px;
+  display: flex;
+  flex-direction: column;
+  border: 1px solid var(--background-modifier-border);
+  border-radius: 8px;
+  background: color-mix(in srgb, var(--background-primary) 94%, transparent);
+  box-shadow: 0 12px 28px var(--onemind-node-shadow);
+  z-index: 30;
+  overflow: hidden;
+}
+
+.onemind-outline.is-hidden {
+  display: none;
+}
+
+.onemind-outline-header {
+  height: 36px;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 8px;
+  padding: 4px 6px 4px 12px;
+  border-bottom: 1px solid var(--background-modifier-border);
+  color: var(--text-muted);
+  font-size: 12px;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0;
+}
+
+.onemind-outline-list {
+  overflow: auto;
+  padding: 6px;
+}
+
+.onemind-outline-row {
+  min-height: 28px;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  border-radius: 6px;
+  color: var(--text-muted);
+  font-size: 13px;
+  line-height: 1.25;
+  cursor: pointer;
+}
+
+.onemind-outline-row:hover {
+  background: var(--background-modifier-hover);
+  color: var(--text-normal);
+}
+
+.onemind-outline-row.is-selected {
+  background: color-mix(in srgb, var(--interactive-accent) 14%, transparent);
+  color: var(--text-normal);
+}
+
+.onemind-outline-emoji {
+  flex: 0 0 auto;
+  font-size: 14px;
+}
+
+.onemind-outline-label {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.onemind-outline-count {
+  flex: 0 0 auto;
+  margin-left: auto;
+  padding: 1px 5px;
+  border-radius: 999px;
+  background: var(--background-secondary);
+  color: var(--text-faint);
+  font-size: 11px;
+}
+
+.onemind-outline-filter {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin: 2px 2px 6px;
+  padding: 6px 8px;
+  border-radius: 6px;
+  background: color-mix(in srgb, var(--interactive-accent) 12%, transparent);
+  color: var(--text-normal);
+  font-size: 12px;
+}
+
+.onemind-outline-filter button {
+  margin-left: auto;
+}
+
+.onemind-scene {
+  position: absolute;
+  inset: 0;
+  transform-origin: 0 0;
+}
+
+.onemind-links,
+.onemind-nodes {
+  position: absolute;
+  inset: 0;
+  overflow: visible;
+}
+
+.onemind-links path {
+  stroke-width: 1.5px;
+  stroke-linecap: round;
+  opacity: 0.78;
+}
+
+.onemind-links path.onemind-association-link {
+  stroke: var(--text-faint);
+  stroke-width: 1.2px;
+  stroke-dasharray: 5 5;
+  opacity: 0.72;
+}
+
+.onemind-node {
+  position: absolute;
+  width: 180px;
+  min-height: 42px;
+  display: flex;
+  align-items: center;
+  flex-wrap: wrap;
+  gap: 8px;
+  padding: 8px 12px 8px 14px;
+  border: 1.5px solid var(--onemind-node-border);
+  border-radius: 8px;
+  background: var(--onemind-node-bg);
+  box-shadow: 0 8px 24px var(--onemind-node-shadow);
+  color: var(--text-normal);
+  font-size: 14px;
+  line-height: 1.35;
+  cursor: default;
+  touch-action: none;
+  transition: left 160ms ease, top 160ms ease, box-shadow 160ms ease, border-color 160ms ease, transform 160ms ease;
+  user-select: none;
+}
+
+.onemind-view.is-animation-disabled .onemind-node {
+  transition: none;
+}
+
+.onemind-node:hover {
+  transform: translateY(-1px);
+}
+
+.onemind-node.is-root {
+  width: 200px;
+  min-height: 48px;
+  font-size: 18px;
+  font-weight: 700;
+}
+
+.onemind-node.is-selected {
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--interactive-accent) 24%, transparent), 0 10px 26px var(--onemind-node-shadow);
+}
+
+.onemind-node.is-primary-selected {
+  border-width: 2px;
+}
+
+.onemind-node.is-dragging {
+  z-index: 20;
+  opacity: 0.88;
+  cursor: grabbing;
+  pointer-events: none;
+  transition: none;
+  box-shadow: 0 14px 34px var(--onemind-node-shadow);
+}
+
+.onemind-node.is-drop-child {
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--interactive-accent) 32%, transparent), 0 10px 26px var(--onemind-node-shadow);
+}
+
+.onemind-node.is-search-match {
+  background: color-mix(in srgb, var(--interactive-accent) 8%, var(--onemind-node-bg));
+}
+
+.onemind-node.is-active-search-match {
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--text-accent) 34%, transparent), 0 10px 26px var(--onemind-node-shadow);
+}
+
+.onemind-node-emoji {
+  width: 26px;
+  height: 26px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  flex: 0 0 auto;
+  border-radius: 6px;
+  background: var(--background-secondary);
+  font-size: 17px;
+  line-height: 1;
+}
+
+.onemind-node.is-root .onemind-node-emoji {
+  width: 30px;
+  height: 30px;
+  font-size: 20px;
+}
+
+.onemind-node-content {
+  min-width: 0;
+  flex: 1 1 auto;
+  overflow-wrap: anywhere;
+}
+
+.onemind-node-tags {
+  width: 100%;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 4px;
+  margin-top: 2px;
+  padding-left: 34px;
+}
+
+.onemind-node:not(.has-emoji) .onemind-node-tags {
+  padding-left: 0;
+}
+
+.onemind-node-tag {
+  max-width: 100%;
+  padding: 1px 6px;
+  border-radius: 999px;
+  background: color-mix(in srgb, var(--interactive-accent) 10%, var(--background-secondary));
+  color: var(--text-muted);
+  font-size: 11px;
+  line-height: 1.45;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.onemind-node-tag:hover,
+.onemind-node-tag.is-active {
+  background: color-mix(in srgb, var(--interactive-accent) 22%, var(--background-secondary));
+  color: var(--text-normal);
+}
+
+.onemind-node-content code {
+  padding: 1px 4px;
+  border-radius: 4px;
+  background: var(--code-background);
+  color: var(--code-normal);
+  font-size: 0.92em;
+}
+
+.onemind-wikilink {
+  color: var(--link-color);
+  cursor: pointer;
+}
+
+.onemind-wikilink:hover {
+  text-decoration: underline;
+}
+
+.onemind-collapse {
+  width: 18px;
+  height: 18px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  flex: 0 0 auto;
+  border-radius: 5px;
+  color: var(--text-muted);
+}
+
+.onemind-collapse:hover {
+  background: var(--background-modifier-hover);
+  color: var(--text-normal);
+}
+
+.onemind-editor {
+  width: 100%;
+  min-height: 36px;
+  resize: none;
+  border: 0;
+  outline: 0;
+  background: transparent;
+  color: var(--text-normal);
+  font: inherit;
+  line-height: 1.35;
+}
+
+.onemind-drop-marker {
+  position: absolute;
+  height: 2px;
+  border-radius: 999px;
+  background: var(--interactive-accent);
+  box-shadow: 0 0 0 3px color-mix(in srgb, var(--interactive-accent) 22%, transparent);
+  pointer-events: none;
+  z-index: 15;
+}
+
+.onemind-drop-marker::before {
+  content: "";
+  position: absolute;
+  left: -4px;
+  top: -3px;
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+  background: var(--interactive-accent);
+}
+
+.onemind-empty {
+  margin: auto;
+  color: var(--text-muted);
+}
+
+.onemind-emoji-suggestion {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 30px;
+  height: 30px;
+  font-size: 22px;
+  line-height: 1;
+}
+
+.onemind-modal-actions {
+  display: flex;
+  justify-content: flex-end;
+  gap: 8px;
+  margin-top: 18px;
+}
+
+.onemind-tag-input {
+  width: 100%;
+  height: 36px;
+  padding: 6px 10px;
+  border: 1px solid var(--background-modifier-border);
+  border-radius: 6px;
+  background: var(--background-secondary);
+  color: var(--text-normal);
+}
+
+.onemind-tag-suggestion {
+  font-size: 13px;
+  color: var(--text-normal);
+}
+
+.onemind-settings-palette {
+  margin: 4px 0 10px;
+  padding-left: 12px;
+  border-left: 2px solid var(--background-modifier-border);
+}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..ce4a7e2
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,22 @@
+{
+  "compilerOptions": {
+    "baseUrl": ".",
+    "inlineSourceMap": true,
+    "inlineSources": true,
+    "module": "ESNext",
+    "target": "ES2018",
+    "allowJs": true,
+    "noImplicitAny": true,
+    "moduleResolution": "node",
+    "importHelpers": true,
+    "isolatedModules": true,
+    "strictNullChecks": true,
+    "lib": [
+      "DOM",
+      "ES2018"
+    ]
+  },
+  "include": [
+    "**/*.ts"
+  ]
+}
diff --git a/versions.json b/versions.json
new file mode 100644
index 0000000..708016d
--- /dev/null
+++ b/versions.json
@@ -0,0 +1,3 @@
+{
+  "0.1.0": "1.5.0"
+}