Add lucide icons and TOC toggle

public/app.js

@@ -10,8 +10,9 @@
   // === DOM Elements ===
   const sidebarNav = document.getElementById('sidebarNav');
   const searchInput = document.getElementById('searchInput');
-  const btnToggleSidebar = document.getElementById('btnToggleSidebar');
+  const btnToggleSidebarToolbar = document.getElementById('btnToggleSidebarToolbar');
   const btnToggleTheme = document.getElementById('btnToggleTheme');
+  const btnToggleToc = document.getElementById('btnToggleToc');
   const themeSelect = document.getElementById('themeSelect');
   const toolbarBreadcrumb = document.getElementById('toolbarBreadcrumb');
   const contentBody = document.getElementById('contentBody');
@@ -20,6 +21,7 @@
   const articleTitle = document.getElementById('articleTitle');
   const articleMeta = document.getElementById('articleMeta');
   const articleBody = document.getElementById('articleBody');
+  const articleLayout = document.querySelector('.article-layout');
   const tocNav = document.getElementById('tocNav');
   const tocPanel = document.getElementById('tocPanel');
   const loadingBar = document.getElementById('loadingBar');
@@ -28,6 +30,29 @@
   const mobileNavBtn = document.getElementById('mobileNavBtn');
   const themeStylesheet = document.getElementById('themeStylesheet');
   const themeHighlightStylesheet = document.getElementById('themeHighlightStylesheet');
+  const sidebarToggleButtons = [btnToggleSidebarToolbar].filter(Boolean);
+
+  function createSidebarToggleIcon() {
+    return '<i data-lucide="panel-left" aria-hidden="true"></i>';
+  }
+
+  function createThemeToggleIcon(mode) {
+    return mode === 'dark'
+      ? '<i data-lucide="sun" aria-hidden="true"></i>'
+      : '<i data-lucide="moon" aria-hidden="true"></i>';
+  }
+
+  function createTocToggleIcon(collapsed) {
+    return collapsed
+      ? '<i data-lucide="chevrons-left" aria-hidden="true"></i>'
+      : '<i data-lucide="chevrons-right" aria-hidden="true"></i>';
+  }
+
+  function refreshLucideIcons() {
+    if (window.lucide && typeof window.lucide.createIcons === 'function') {
+      window.lucide.createIcons();
+    }
+  }
 
   let currentFile = null;
   const titleByPath = buildTitleIndex(navTree);
@@ -97,8 +122,10 @@
       themeSelect.value = theme.id;
     }
 
-    btnToggleTheme.textContent = mode === 'dark' ? '☀︎' : '☾';
+    btnToggleTheme.innerHTML = createThemeToggleIcon(mode);
     btnToggleTheme.title = mode === 'dark' ? '切换到浅色模式' : '切换到深色模式';
+    btnToggleTheme.setAttribute('aria-label', btnToggleTheme.title);
+    refreshLucideIcons();
   }
 
   function toggleColorMode() {
@@ -120,13 +147,22 @@
       sidebar.classList.remove('collapsed');
       app.classList.remove('sidebar-collapsed');
       localStorage.setItem('webook-sidebar', 'visible');
-      btnToggleSidebar.textContent = '☰';
     } else {
       sidebar.classList.add('collapsed');
       app.classList.add('sidebar-collapsed');
       localStorage.setItem('webook-sidebar', 'hidden');
-      btnToggleSidebar.textContent = '☷';
     }
+
+    const title = visible ? '隐藏侧边栏' : '显示侧边栏';
+    const iconMarkup = createSidebarToggleIcon();
+
+    sidebarToggleButtons.forEach((button) => {
+      button.innerHTML = iconMarkup;
+      button.title = title;
+      button.setAttribute('aria-label', title);
+    });
+
+    refreshLucideIcons();
   }
 
   function toggleSidebar() {
@@ -154,6 +190,36 @@
     sidebarOverlay.classList.add('visible');
   }
 
+  if (mobileNavBtn) {
+    mobileNavBtn.innerHTML = createSidebarToggleIcon();
+    refreshLucideIcons();
+  }
+
+  // === TOC Toggle ===
+  function getTocCollapsed() {
+    return localStorage.getItem('webook-toc') === 'collapsed';
+  }
+
+  function setTocCollapsed(collapsed) {
+    if (!tocPanel || !articleLayout || !btnToggleToc) return;
+
+    tocPanel.classList.toggle('is-collapsed', collapsed);
+    articleLayout.classList.toggle('toc-collapsed', collapsed);
+    localStorage.setItem('webook-toc', collapsed ? 'collapsed' : 'expanded');
+
+    const title = collapsed ? '展开目录' : '收起目录';
+    btnToggleToc.innerHTML = createTocToggleIcon(collapsed);
+    btnToggleToc.title = title;
+    btnToggleToc.setAttribute('aria-label', title);
+    refreshLucideIcons();
+  }
+
+  function toggleToc() {
+    setTocCollapsed(!getTocCollapsed());
+  }
+
+  setTocCollapsed(getTocCollapsed());
+
   function hideMobileSidebar() {
     sidebar.classList.remove('mobile-visible');
     if (sidebarOverlay) {
@@ -519,9 +585,9 @@
     const modified = formatDate(meta.modified);
     const wordCount = meta.wordCount;
     articleMeta.innerHTML = `
-      <span class="article-meta-item">创建时间: ${created}</span>
-      <span class="article-meta-item">修改时间: ${modified}</span>
-      <span class="article-meta-item">字数统计: ${wordCount.toLocaleString()}</span>
+      <span class="article-meta-item"><em>创建时间：${created}</em></span>
+      <span class="article-meta-item"><em>修改时间：${modified}</em></span>
+      <span class="article-meta-item"><em>字数统计：${wordCount.toLocaleString()}</em></span>
     `;
   }
 
@@ -613,8 +679,13 @@
 
   // === Event Listeners ===
   btnToggleTheme.addEventListener('click', toggleColorMode);
-  btnToggleSidebar.addEventListener('click', toggleSidebar);
+  sidebarToggleButtons.forEach((button) => {
+    button.addEventListener('click', toggleSidebar);
+  });
   mobileNavBtn.addEventListener('click', showMobileSidebar);
+  if (btnToggleToc) {
+    btnToggleToc.addEventListener('click', toggleToc);
+  }
   if (themeSelect) {
     themeSelect.addEventListener('change', function () {
       applyTheme(this.value, getStoredColorMode(this.value));

public/style.css

@@ -97,7 +97,7 @@ a:hover { color: var(--brand-strong); }
   background: var(--brand-mark-bg);
   color: #fff; font-weight: 700; box-shadow: var(--shadow-sm);
 }
-.sidebar-brand-text { display: grid; line-height: 1.15; }
+.sidebar-brand-text { display: grid; line-height: 1.3; }
 .sidebar-brand-text strong { font-size: 15px; }
 .sidebar-brand-text small { color: var(--text-muted); font-size: 12px; }
 .search-box input {
@@ -186,6 +186,13 @@ a:hover { color: var(--brand-strong); }
   border-bottom: 0;
   backdrop-filter: none;
 }
+.toolbar-breadcrumb-group {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  min-width: 0;
+  flex: 1;
+}
 .toolbar-breadcrumb {
   display: flex;
   align-items: center;
@@ -254,7 +261,27 @@ a:hover { color: var(--brand-strong); }
   cursor: pointer; display: grid; place-items: center; font-size: 16px;
 }
 .btn-icon:hover { background: var(--bg-soft); color: var(--text); border-color: var(--border); }
-
+.btn-icon svg,
+.btn-icon i svg {
+  width: 18px;
+  height: 18px;
+  stroke: currentColor;
+  stroke-width: 2;
+  fill: none;
+  stroke-linecap: round;
+  stroke-linejoin: round;
+}
+.btn-icon i {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  width: 18px;
+  height: 18px;
+}
+.btn-sidebar-toggle {
+  flex: 0 0 auto;
+  display: grid;
+}
 .content-body {
   flex: 1;
   overflow: auto;
@@ -285,6 +312,12 @@ a:hover { color: var(--brand-strong); }
   gap: 24px;
   align-items: start;
 }
+.article-layout.toc-collapsed {
+  grid-template-columns: minmax(0, 1fr) 68px;
+}
+.article-main {
+  min-width: 0;
+}
 .article-header {
   padding: 10px 0 14px;
   margin-bottom: 20px;
@@ -300,10 +333,22 @@ a:hover { color: var(--brand-strong); }
   font-size: clamp(30px, 4vw, 44px); line-height: 1.08;
   letter-spacing: -0.03em; color: var(--text);
 }
-.article-meta { display: flex; flex-wrap: wrap; gap: 10px 16px; color: var(--text-muted); font-size: 13px; }
-.article-meta-side {
-  display: grid;
-  gap: 10px;
+.article-meta {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px 16px;
+  color: var(--text-muted);
+  font-size: 13px;
+}
+.article-meta-footer {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px 18px;
+  margin-top: 32px;
+  padding-top: 18px;
+  border-top: 1px solid var(--border);
+  color: var(--text-muted);
+  font-size: 13px;
 }
 .article-meta-item {
   display: inline-flex;
@@ -313,6 +358,10 @@ a:hover { color: var(--brand-strong); }
   border-radius: 0;
   background: transparent;
 }
+.article-meta-item em {
+  font-style: italic;
+  opacity: 0.9;
+}
 .article-body {
   font-size: 16px; line-height: 1.85; color: var(--text);
 }
@@ -424,6 +473,7 @@ a:hover { color: var(--brand-strong); }
   gap: 14px;
   position: sticky;
   top: 18px;
+  margin-top: 48px;
 }
 .toc-card {
   padding: 16px 14px;
@@ -433,8 +483,12 @@ a:hover { color: var(--brand-strong); }
   box-shadow: var(--shadow-sm);
   backdrop-filter: blur(18px);
 }
-.meta-card {
-  padding-bottom: 14px;
+.toc-card-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 10px;
+  margin-bottom: 12px;
 }
 .toc-title {
   font-size: 12px;
@@ -442,12 +496,40 @@ a:hover { color: var(--brand-strong); }
   letter-spacing: 0.08em;
   text-transform: uppercase;
   color: var(--text-muted);
-  margin-bottom: 12px;
+}
+.toc-toggle-btn {
+  width: 30px;
+  height: 30px;
+  border-radius: 10px;
+  color: var(--text-soft);
+}
+.toc-toggle-btn i,
+.toc-toggle-btn svg,
+.toc-toggle-btn i svg {
+  width: 15px;
+  height: 15px;
 }
 .toc-nav {
   display: grid;
   gap: 4px;
 }
+.toc-panel.is-collapsed .toc-card {
+  /* padding: 12px 10px; */
+  padding-left: 9px;
+  padding-right: 9px;
+}
+.toc-panel.is-collapsed .toc-card-header {
+  justify-content: center;
+  margin-bottom: 0;
+}
+.toc-panel.is-collapsed .toc-title,
+.toc-panel.is-collapsed .toc-nav {
+  display: none;
+}
+/* .toc-panel.is-collapsed .toc-toggle-btn {
+  width: 36px;
+  height: 36px;
+} */
 .toc-link {
   display: flex;
   align-items: center;
@@ -517,7 +599,11 @@ a:hover { color: var(--brand-strong); }
     opacity: 1;
   }
   .content-toolbar { padding-left: 18px; }
+  .toolbar-breadcrumb-group {
+    gap: 10px;
+  }
   .toolbar-breadcrumb { min-width: 0; }
+  .btn-sidebar-toggle-toolbar { display: none !important; }
   .theme-select-wrap { max-width: 150px; }
   .theme-select { min-width: 0; width: 100%; }
   .markdown-body { width: min(100%, calc(100% - 28px)); padding-top: 20px; padding-bottom: 72px; }