/* Vex 工作台原型：功能与主题令牌分离，不依赖 Avalonia 的当前布局。 */
html, body { height: 100%; }
body { padding: 24px; display: grid; place-items: center; overflow: hidden; }
[hidden] { display: none !important; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.app-window { width: min(1480px, 100%); height: min(930px, 100%); min-height: 540px; display: flex; flex-direction: column; overflow: hidden; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow-window); }
.titlebar { height: 40px; min-height: 40px; padding: 0 0 0 16px; background: var(--panel); border-bottom: 1px solid var(--border); gap: 24px; }
.brand { display: flex; align-items: center; gap: 7px; font-size: 15px; font-weight: 750; letter-spacing: -.5px; }
.brand img { width: 22px; height: 22px; }
.tb-menu { gap: 2px; }
.tb-menuitem { font-size: 12px; padding: 3px 9px; border: none; background: transparent; cursor: pointer; }
.titlebar .caption-btns { margin-left: auto; position: static; height: 39px; }
.caption-btn { width: 42px; height: 39px; border: none; background: transparent; }
.menu-item:focus-visible { outline: none; background: var(--hover); }
.window-body { position: relative; flex: 1; min-height: 0; display: flex; flex-direction: column; }
.workbar { height: 62px; padding: 0 20px; display: flex; align-items: center; gap: 14px; border-bottom: 1px solid var(--border); background: var(--panel); flex: none; }
.icon-button { width: 30px; height: 30px; padding: 0; display: inline-flex; justify-content: center; align-items: center; border: 1px solid transparent; border-radius: 6px; color: var(--muted); background: transparent; transition: color .15s, background .15s; flex: none; }
.icon-button:hover { color: var(--fg); background: var(--hover); }
.icon-button.on { background: var(--accent-soft); color: var(--accent); }
.ico { width: 16px; height: 16px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.document-label { display: flex; flex-direction: column; gap: 2px; min-width: 120px; flex: 1; }
.document-title { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; }
.document-title .doc-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--warning); }
.view-switch { position: relative; display: flex; padding: 3px; border: 1px solid var(--border); border-radius: 8px; background: var(--code-bg); gap: 2px; flex: none; }
.view-switch::before { content: ''; position: absolute; left: 3px; top: 3px; width: 86px; bottom: 3px; border-radius: 5px; background: var(--panel); box-shadow: 0 1px 4px #00000012; transition: transform .24s cubic-bezier(.2,.8,.2,1); }
.view-switch[data-active="read"]::before { transform: translateX(88px); }
.view-switch[data-active="mindmap"]::before { transform: translateX(176px); }
.view-switch button { position: relative; z-index: 1; display: flex; align-items: center; justify-content: center; gap: 7px; width: 86px; height: 28px; border: none; border-radius: 5px; color: var(--muted); background: transparent; font-size: 12px; }
.view-switch button[aria-selected="true"] { color: var(--accent); font-weight: 650; }
.work-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; flex: 1; justify-content: flex-end; }
.save-button { display: flex; align-items: center; gap: 7px; }
.workspace { flex: 1; min-height: 0; display: flex; overflow: hidden; }
.sidebar { width: 226px; flex: none; padding: 0; background: var(--panel); border-right: 1px solid var(--border); overflow: hidden; transition: width .24s ease, opacity .2s; }
.sidebar.closed { width: 0; opacity: 0; border: none; pointer-events: none; }
.sidebar-inner { width: 225px; height: 100%; display: flex; flex-direction: column; }
.side-tabs { height: 44px; padding: 0 12px; margin-bottom: 0; gap: 18px; border-bottom: none; flex: none; }
.side-tab { display: flex; align-items: center; gap: 6px; font-size: 12px; padding: 10px 2px; }
.side-tab .ico { width: 14px; height: 14px; }
.sidebar-search { margin: 8px 14px 12px; display: flex; align-items: center; gap: 7px; background: var(--code-bg); border: 1px solid var(--border); border-radius: 6px; padding: 5px 8px; color: var(--muted); }
.sidebar-search input { border: none; background: transparent; outline: none; font-size: 11px; color: var(--fg); width: 100%; min-width: 0; }
.sidebar-search .ico { width: 13px; height: 13px; }
.side-section-label { font-size: 10px; letter-spacing: 1px; color: var(--muted); padding: 0 18px 9px; display: flex; align-items: center; justify-content: space-between; }
.folder-row { padding: 4px 12px 8px 16px; display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--muted); }
.folder-root { min-height: 30px; padding-top: 0; padding-bottom: 4px; }
.folder-root > span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.folder-root .icon-button { width: 26px; height: 26px; margin-left: auto; color: var(--muted); }
.file-list { padding: 0 8px; }
.file-row { width: 100%; height: 30px; border: 1px solid transparent; border-left-width: 3px; background: transparent; color: var(--fg); display: flex; align-items: center; gap: 9px; padding: 0 10px 0 8px; margin-bottom: 2px; border-radius: 6px; text-align: left; font-size: 12.5px; transition: background .16s, border-color .16s; }
.file-row .ico { width: 14px; height: 14px; color: var(--muted); }
.file-row:hover { background: var(--hover); }
.file-row.selected { color: var(--accent); background: var(--accent-soft); border-left-color: var(--accent); }
.file-row.selected .ico { color: var(--accent); }
.file-row span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.side-pane { flex: 1; min-height: 0; overflow: auto; }
.outline-list { padding: 6px 10px; }
.outline-item { display: block; text-align: left; width: 100%; padding: 7px 8px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); font-size: 11.5px; }
.outline-item:hover, .outline-item.on { color: var(--accent); background: var(--accent-soft); }
.outline-item small { margin-right: 8px; opacity: .55; font-size: 9px; }
.content-area { position: relative; display: flex; flex: 1; min-width: 0; min-height: 0; overflow: hidden; }
.source-pane { width: 45%; flex: none; min-width: 0; display: flex; flex-direction: column; border-right: 1px solid var(--border); background: var(--editor-bg); }
.workspace[data-view="mindmap"] .source-pane { width: 34%; }
.pane-head { height: 44px; padding: 0 20px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid var(--border); color: var(--muted); font-size: 11px; flex: none; }
.pane-head .ph-right { margin-left: auto; font-size: 10px; display: flex; align-items: center; gap: 5px; }
.source-scroll { position: relative; flex: 1; overflow: auto; }
.source-scroll textarea { width: 100%; min-height: 100%; border: none; outline: none; resize: none; padding: 22px 24px 60px 54px; color: var(--editor-fg); background: transparent; font: 12px/23px "Cascadia Code", Consolas, "Microsoft YaHei UI", monospace; tab-size: 2; white-space: pre; overflow: hidden; }
.line-numbers { position: absolute; top: 22px; left: 0; width: 40px; text-align: right; font: 10px/23px Consolas, monospace; color: var(--md-marker); user-select: none; pointer-events: none; }
.source-scroll.no-lines textarea { padding-left: 24px; }
.source-scroll.no-lines .line-numbers { display: none; }
.reading-pane { min-width: 0; display: flex; flex-direction: column; flex: 1; background: var(--bg); }
.reading-scroll { flex: 1; min-height: 0; overflow: auto; }
.reading-scroll .md-body { max-width: 780px; margin: 0 auto; padding: 36px 44px 70px; font-size: 13px; line-height: 1.95; }
.reading-scroll .md-body h1 { font-size: 25px; padding-bottom: 16px; margin-bottom: 18px; letter-spacing: -.5px; }
.reading-scroll .md-body h2 { margin-top: 30px; }
.reading-scroll .md-body > * { scroll-margin-top: 24px; }
.reading-scroll .md-body > .located { animation: locate 1.3s ease; }
.map-pane { position: relative; display: flex; flex: 1; min-width: 0; flex-direction: column; overflow: hidden; }
.map-toolbar { min-height: 44px; padding: 0 18px; display: flex; align-items: center; gap: 8px; border-bottom: 1px solid var(--border); flex-wrap: wrap; flex: none; background: var(--panel); z-index: 2; }
.map-toolbar-title { font-size: 11px; color: var(--muted); margin-right: auto; display: flex; align-items: center; gap: 7px; }
.map-toolbar-title .ico { width: 13px; height: 13px; }
.toolbar-button { display: inline-flex; align-items: center; gap: 6px; padding: 5px 8px; border: 1px solid transparent; border-radius: 5px; background: transparent; color: var(--muted); font-size: 11px; white-space: nowrap; transition: color .15s, background .15s; }
.toolbar-button:hover { color: var(--fg); background: var(--hover); }
.toolbar-button.on { color: var(--accent); background: var(--accent-soft); }
.toolbar-button .ico { width: 13px; height: 13px; }
.toolbar-divider { height: 14px; width: 1px; background: var(--border); }
.map-viewport { position: relative; flex: 1; min-height: 0; overflow: hidden; touch-action: none; background-color: var(--bg); background-image: radial-gradient(circle, color-mix(in srgb, var(--muted) 21%, transparent) .7px, transparent .9px); background-size: 18px 18px; cursor: grab; }
.map-viewport.panning { cursor: grabbing; }
.map-scene { position: absolute; top: 0; left: 0; transform-origin: 0 0; }
.map-scene.animating { transition: transform .28s cubic-bezier(.2,.8,.2,1); }
.map-links { position: absolute; inset: 0; overflow: visible; pointer-events: none; }
.map-links path { fill: none; stroke: var(--branch-color, var(--accent)); stroke-width: 1.5; opacity: .42; }
.map-node { position: absolute; display: flex; align-items: stretch; gap: 6px; width: 224px; border-radius: 8px; border: 1px solid var(--border); background: var(--panel); color: var(--fg); box-shadow: 0 2px 5px #00000003; transition: left .24s ease, top .24s ease, border-color .16s, box-shadow .16s; }
.map-node.enter { animation: node-appear .28s both; animation-delay: var(--delay, 0ms); }
.map-node[data-kind="heading"] { border-left: 3px solid var(--branch-color, var(--accent)); }
.map-node.root { width: 214px; background: var(--accent); color: var(--accent-fg); border-color: var(--accent); box-shadow: 0 6px 18px color-mix(in srgb, var(--accent) 20%, transparent); }
.map-node.content { background: color-mix(in srgb, var(--panel) 65%, var(--bg)); border-style: dashed; }
.map-node.selected { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.map-node-button { width: 100%; min-width: 0; padding: 10px 12px; border: 0; background: transparent; color: inherit; text-align: left; border-radius: inherit; }
.map-node-button:hover { background: color-mix(in srgb, var(--accent) 5%, transparent); }
.map-node-type { display: block; font-size: 9px; font-weight: 500; line-height: 14px; color: var(--muted); margin-bottom: 4px; }
.root .map-node-type { color: inherit; opacity: .75; }
.map-node-text { display: block; font-size: 13px; font-weight: 600; line-height: 20px; overflow-wrap: anywhere; }
.content .map-node-type { display: none; }
.content .map-node-text { color: var(--muted); font-weight: 400; font-size: 12px; line-height: 20px; }
.map-collapse { position: absolute; right: -10px; top: 50%; transform: translateY(-50%); width: 19px; height: 19px; border: 1px solid var(--border); background: var(--panel); color: var(--muted); display: grid; place-items: center; border-radius: 50%; font: 11px/1 Consolas, monospace; }
.map-collapse:hover { color: var(--accent); border-color: var(--accent); }
.map-controls { position: absolute; bottom: 20px; right: 20px; display: flex; align-items: center; padding: 3px; gap: 2px; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; box-shadow: 0 4px 18px #00000008; z-index: 2; }
.map-controls .zoom-value { font-size: 10.5px; font-variant-numeric: tabular-nums; width: 46px; text-align: center; color: var(--muted); }
.map-hint { position: absolute; left: 20px; bottom: 22px; font-size: 10px; color: var(--muted); pointer-events: none; opacity: .8; }
.map-legend { position: absolute; top: 18px; left: 20px; display: flex; gap: 15px; color: var(--muted); font-size: 10px; pointer-events: none; }
.map-legend span { display: flex; align-items: center; gap: 5px; }
.map-legend i { width: 7px; height: 7px; border: 1px solid var(--accent); border-radius: 2px; }
.map-legend .content-key { border: 1px dashed var(--muted); }
.settings-popover { position: absolute; z-index: 8; right: 120px; top: 49px; width: 300px; padding: 18px; border: 1px solid var(--border); background: var(--panel); border-radius: 10px; box-shadow: var(--shadow-pop); animation: pop-in .18s ease; }
.popover-title { display: flex; align-items: center; justify-content: space-between; font-size: 13px; font-weight: 650; margin-bottom: 14px; }
.setting-label { display: flex; align-items: center; justify-content: space-between; margin: 11px 0; font-size: 11.5px; color: var(--fg); }
.setting-label input[type="number"] { width: 68px; padding: 5px 7px; border: 1px solid var(--border); border-radius: 5px; background: var(--bg); color: var(--fg); }
.setting-label input[type="checkbox"] { accent-color: var(--accent); }
.setting-note { color: var(--muted); font-size: 10.5px; line-height: 1.7; margin-bottom: 16px; }
.summary-example { padding: 12px; border-radius: 6px; border: 1px dashed var(--border); color: var(--fg); font-size: 13px; line-height: 1.8; background: var(--bg); }
.summary-example small { display: block; font-size: 13px; font-weight: 600; color: var(--fg); margin-bottom: 5px; }
.settings-reset { margin-top: 8px; min-height: 36px; font-size: 13px; font-weight: 600; padding: 6px 8px; border: none; border-radius:4px; background: none; color: var(--fg); cursor:pointer; }
.settings-reset:hover,.settings-reset:focus-visible { color:var(--accent); background:var(--accent-soft); }
.about-version { align-items:center; }
.about-version #vex-update { min-height:30px; font-size:12px; }
.about-version #vex-update-status { flex-basis:100%; font-size:12px; color:var(--muted); }
.node-inspector { position: absolute; z-index: 4; right: 18px; top: 60px; width: 284px; max-height: calc(100% - 135px); background: var(--panel); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow-pop); overflow: auto; animation: inspector-in .22s ease; }
.inspector-head { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 10.5px; color: var(--muted); }
.inspector-head .icon-button { margin-left: auto; width: 24px; height: 24px; }
.inspector-body { padding: 16px; }
.inspector-body h3 { font-size: 13px; margin-bottom: 12px; }
.inspector-content { color: var(--muted); white-space: pre-wrap; overflow-wrap: anywhere; font-size: 11.5px; line-height: 1.85; max-height: 230px; overflow: auto; }
.inspector-foot { padding: 10px 14px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 10px; }
.statusbar { height: 32px; min-height: 32px; gap: 16px; padding: 0 16px; background: var(--panel); font-size: 11.5px; border-top: 1px solid var(--border); }
.statusbar button { border: none; background: transparent; color: var(--muted); font-size: 11.5px; }
.statusbar button:hover { color: var(--accent); }
.save-status { display: flex; align-items: center; gap: 6px; color: var(--muted); }
.save-status .ico { width: 12px; height: 12px; color: var(--success); }
.status-right { display: flex; align-items: center; gap: 16px; margin-left: auto; color: var(--muted); font-size: 11.5px; }
.status-view { color: var(--accent); }
.find-strip { display: flex; padding: 10px 20px; gap: 8px; border-bottom: 1px solid var(--border); align-items: center; background: var(--panel); animation: pop-in .18s ease; }
.find-strip .input { width: 190px; font-size: 11px; min-height: 28px; }
.find-strip small { font-size: 10px; color: var(--muted); margin-right: auto; }
.empty-state { color: var(--muted); font-size: 11px; padding: 12px 16px; }
.pane-enter { animation: pane-in .24s ease; }
.win-layer { position: absolute; inset: 0; z-index: 40; display: flex; align-items: center; justify-content: center; background: var(--scrim); backdrop-filter: blur(3px); animation: pop-in .18s ease; }
.win-layer .mini-window { max-height: 92%; overflow: auto; }
.win-layer > * { animation: inspector-in .2s ease; }
#vex-theme-fab { width: 18px !important; height: 18px !important; right: 3px !important; bottom: 3px !important; opacity: .8; }
#vex-theme-panel { right: 16px; bottom: 46px; }
.app-window.expanded { position:fixed; inset:0; width:100vw; height:100vh; border-radius:0; }
#prototype-window-state { display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; }
#restore-window { padding:8px 18px; background:var(--panel); color:var(--text); border:1px solid var(--border); border-radius:6px; }
@keyframes node-appear { from { opacity: 0; transform: translateX(-8px); } to { opacity: 1; transform: translateX(0); } }
@keyframes pane-in { from { opacity: .3; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pop-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes inspector-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
@keyframes locate { 0%, 35% { background: var(--accent-soft); } 100% { background: transparent; } }
@media (max-width: 1100px) { body { padding: 12px; } .workbar { padding: 0 12px; gap: 10px; } .map-toolbar { padding: 7px 10px; } .map-toolbar-title { display: none; } .sidebar, .sidebar-inner { width: 200px; } .source-pane { width: 43%; } .reading-scroll .md-body { padding: 24px; } .settings-popover { right: 12px; top: 48px; } .map-hint { display: none; } }
@media (max-width: 760px) { body { padding: 0; } .app-window { border-radius: 0; min-height: 480px; } .sidebar, .sidebar-inner { width: 170px; } .document-label { min-width: 0; } .document-title { font-size: 11px; } .work-actions { flex: none; } .work-actions .icon-button, .save-button span { display: none; } .view-switch button, .view-switch::before { width: 58px; } .view-switch[data-active="read"]::before { transform: translateX(60px); } .view-switch[data-active="mindmap"]::before { transform: translateX(120px); } .view-switch .ico { display: none; } .status-right { gap: 9px; } #status-encoding { display: none; } .titlebar { gap: 10px; padding-left: 10px; } .tb-menuitem { padding: 3px 5px; font-size: 11px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; } }

.titlebar{gap:12px}.titlebar .caption-btns{margin-left:0;flex:none}.tb-menu{flex:none}.studio-title-controls{margin-left:auto;display:flex;align-items:center;gap:6px;height:32px;flex:none}.studio-modes,.studio-palettes{display:flex;align-items:center;gap:1px}.studio-modes{border:1px solid var(--border);border-radius:6px;background:var(--bg);padding:1px}.studio-title-controls button{display:flex;align-items:center;justify-content:center;height:28px;padding:0;border:0;background:transparent;color:var(--fg);border-radius:4px;cursor:pointer;font:14px Segoe UI}.studio-modes button{width:28px}.studio-title-controls button.on{background:var(--accent-soft);color:var(--accent)}.studio-palettes button{width:22px}.studio-palettes i{width:12px;height:12px;border-radius:50%;box-shadow:0 0 0 1px #8883}.studio-palettes button.on i{outline:2px solid var(--accent);outline-offset:3px}.studio-language{position:relative}.studio-language summary{list-style:none;cursor:pointer;font:12px Segoe UI;height:32px;width:32px;display:flex;align-items:center;justify-content:center;gap:1px}.studio-language summary span{font-size:9px;align-self:flex-end;padding-bottom:6px}.studio-language>div{position:absolute;right:0;top:36px;min-width:148px;padding:5px;z-index:150;background:var(--panel);border:1px solid var(--border);border-radius:6px;box-shadow:var(--shadow-pop)}.studio-language>div button{width:100%;justify-content:flex-start;padding:6px 10px;font-size:12px;height:30px}.studio-title-controls button:hover,.studio-language summary:hover{background:var(--hover)}
@media(max-width:1100px){.titlebar{gap:6px;padding-left:10px}.tb-menuitem{padding:3px 5px;font-size:11px}.titlebar .caption-btn{width:34px}.brand{font-size:13px}.brand img{width:20px;height:20px}.studio-title-controls{gap:3px}.studio-palettes button{width:20px}.studio-modes button{width:26px}}