feat(前端界面): 优化提示文案，修复模式切换后的缩略图定位

assets/webui/index.html

@@ -169,7 +169,7 @@
 			<form id="batchPagesForm">
 				<div class="form-row"><label for="batchPageAction">操作</label><select id="batchPageAction"><option value="copy">复制</option><option value="move">移动</option><option value="delete">删除</option><option value="save">另存</option></select></div>
 				<div class="form-row"><label for="batchPageRange">页码</label><input id="batchPageRange" type="text" required autocomplete="off" spellcheck="false" autofocus></div>
-				<div id="batchPagePositionRow" class="form-row" hidden><label for="batchPagePosition">位置</label><select id="batchPagePosition"><option value="before">页前</option><option value="after">页后</option><option value="first">首部</option><option value="last">末尾</option></select></div>
+				<div id="batchPagePositionRow" class="form-row" hidden><label for="batchPagePosition">位置</label><select id="batchPagePosition"><option value="before">页前</option><option value="after">页后</option><option value="first">开头</option><option value="last">末尾</option></select></div>
 				<div class="form-actions"><div id="batchPagesStatus" class="form-status" role="status"></div><button id="batchPagesCancel" class="button" type="button">取消</button><button id="batchPagesSubmit" class="button" type="submit">复制</button></div>
 			</form>
 		</dialog>
@@ -241,7 +241,7 @@
 				<div class="form-row"><label for="importFile">文档</label><input id="importFile" type="file" accept=".ofd" required autofocus></div>
 				<div class="form-row"><label for="importRange">范围</label><select id="importRange"><option value="all">全部</option><option value="custom">指定</option></select></div>
 				<div id="importPagesRow" class="form-row" hidden><label for="importPages">页码</label><input id="importPages" type="text" autocomplete="off" spellcheck="false" disabled></div>
-				<div class="form-row"><label for="importPosition">位置</label><select id="importPosition"><option value="before">页前</option><option value="after" selected>页后</option><option value="first">首部</option><option value="last">末尾</option></select></div>
+				<div class="form-row"><label for="importPosition">位置</label><select id="importPosition"><option value="before">页前</option><option value="after" selected>页后</option><option value="first">开头</option><option value="last">末尾</option></select></div>
 				<div class="form-row"><label for="importOutlines">目录</label><input id="importOutlines" type="checkbox" title="导入对应目录"></div>
 				<div class="form-actions"><div id="importStatus" class="form-status" role="status"></div><button id="importCancel" class="button" type="button">取消</button><button id="importSubmit" class="button" type="submit" disabled>插入</button></div>
 			</form>
@@ -345,7 +345,7 @@
 				</div>
 				<div id="pageSelectionTools" class="page-selection-tools" hidden>
 					<span id="pageSelectionCount" role="status"></span>
-					<button id="selectAllPages" class="small-button" type="button">全选</button>
+					<button id="selectAllPages" class="small-button" type="button" title="全选页面" aria-label="全选页面">全选</button>
 					<button id="finishPageSelection" class="small-button" type="button">完成</button>
 				</div>
 				<div id="navigationContent" class="navigation-content">
@@ -467,7 +467,7 @@
 							<button id="fontDirectoryButton" class="small-button" type="button" title="添加字体目录" aria-label="添加字体目录">目录</button>
 						</div>
 					</div>
-					<div id="fontPermissionHint" class="font-permission-hint" hidden>字体尚未授权</div>
+						<div id="fontPermissionHint" class="font-permission-hint" hidden>系统字体未授权</div>
 					<div id="fontList" class="font-list"></div>
 				</section>
 			</aside>

assets/webui/ofdgo.js

@@ -1274,6 +1274,7 @@ async function toggleEditor() {
 		renderPageList();
 		applyFit(false);
 		restoreScaleAnchor(anchor);
+		updatePageListCurrent(true);
 		return;
 	}
 	const { pageIndex, fitMode, scale } = state;
@@ -1302,6 +1303,7 @@ async function toggleEditor() {
 		if (openSeq === state.openSeq) {
 			setBusy(false);
 			updateControls();
+			if (state.editing) updatePageListCurrent(true);
 		}
 	}
 }
@@ -1571,7 +1573,7 @@ async function loadEditorFonts() {
 				await fontManager.queryLocal();
 				refreshEditorFonts();
 			} catch (err) {
-				setStatus(err?.name === "NotAllowedError" ? "字体尚未授权" : String(err.message || err));
+				setStatus(err?.name === "NotAllowedError" ? "系统字体未授权" : String(err.message || err));
 			} finally {
 				state.fontCatalogLoading = false;
 			}
@@ -2098,7 +2100,7 @@ async function openOFDFromDrop(event) {
 		return;
 	}
 	if (event.dataTransfer.files.length > 1) {
-		setStatus("仅支持单文件拖入");
+		setStatus("一次拖入一个文件");
 		return;
 	}
 	const file = event.dataTransfer.files[0];
@@ -2593,7 +2595,7 @@ async function loadLocalFonts() {
 		return;
 	}
 	if (!fontManager.canReadLocal()) {
-		setStatus("无法读取系统字体");
+		setStatus("浏览器不支持系统字体");
 		return;
 	}
 	setBusy(true, state.doc ? "正在匹配字体" : "正在请求授权", 12, state.doc ? STATUS.fonts : "正在请求授权");
@@ -2609,7 +2611,7 @@ async function loadLocalFonts() {
 		}
 	} catch (err) {
 		if (err && err.name === "NotAllowedError") {
-			setStatus("字体尚未授权");
+			setStatus("系统字体未授权");
 		} else {
 			setStatus(String(err.message || err));
 		}
@@ -2628,7 +2630,7 @@ async function requestLocalFontsBeforeOpen() {
 		setStatus(available.length ? `已授权${available.length}种字体` : "暂无系统字体");
 	} catch (err) {
 		if (err && err.name === "NotAllowedError") {
-			setStatus("字体尚未授权");
+			setStatus("系统字体未授权");
 			return;
 		}
 		setStatus(String(err.message || err));
@@ -2650,7 +2652,7 @@ async function autoLoadDocumentLocalFonts(openSeq) {
 		return await loadDocumentLocalFonts(available, openSeq);
 	} catch (err) {
 		if (err && err.name === "NotAllowedError") {
-			setStatus("字体尚未授权");
+			setStatus("系统字体未授权");
 			return false;
 		}
 		setStatus(String(err.message || err));
@@ -2906,7 +2908,7 @@ function fontSourceText(source) {
 function updateLocalFontButton() {
 	const supported = fontManager.canReadLocal();
 	el.localFontButton.disabled = !supported;
-	el.localFontButton.title = supported ? "读取系统字体" : "无法读取系统字体";
+	el.localFontButton.title = supported ? "读取系统字体" : "浏览器不支持系统字体";
 	updateFontPermissionHint();
 }
 
@@ -4564,7 +4566,10 @@ function syncPageSelection() {
 	if (!state.editing) state.pageMultiSelect = false;
 	el.pageSelectionTools.hidden = !state.editing || !state.pageMultiSelect || el.pageList.hidden;
 	el.pageSelectionCount.textContent = `已选${state.pageSelection.size}页`;
-	el.selectAllPages.textContent = state.pageSelection.size === state.doc?.pageCount ? "清空" : "全选";
+	const allSelected = state.pageSelection.size === state.doc?.pageCount;
+	el.selectAllPages.textContent = allSelected ? "取消" : "全选";
+	el.selectAllPages.title = allSelected ? "取消全选" : "全选页面";
+	el.selectAllPages.setAttribute("aria-label", el.selectAllPages.title);
 	for (const button of el.pageList.children) {
 		if (state.editing) button.setAttribute("aria-pressed", String(state.pageSelection.has(state.doc.pages[Number(button.dataset.pageIndex)].id)));
 		else button.removeAttribute("aria-pressed");

assets/webui/ofdgo_font.js

@@ -87,7 +87,7 @@ export class FontPicker {
 		if (!this.matches.length) {
 			const empty = document.createElement("div");
 			empty.className = "font-search-empty";
-			empty.textContent = "无匹配字体";
+			empty.textContent = this.fonts.length ? "暂无匹配字体" : "暂无字体";
 			this.list.append(empty);
 		}
 		if (!this.open) this.list.showPopover();