重构小程序图标组件，替换传统 emoji 为 SVG 图标，提升视觉一致性和可维护性。更新多个页面以使用新图标组件，优化用户界面体验。同时，调整了数据加载逻辑，确保更高效的状态管理和用户交互。

miniprogram/pages/chapters/chapters.js

@@ -65,7 +65,7 @@ Page({
         this.setData({ searchEnabled: app.globalData.features.searchEnabled })
         return
       }
-      const res = await app.request({ url: '/api/miniprogram/config', silent: true })
+      const res = await app.getConfig()
       const features = (res && res.features) || {}
       const searchEnabled = features.searchEnabled !== false
       if (!app.globalData.features) app.globalData.features = {}
@@ -76,18 +76,11 @@ Page({
     }
   },
 
-  // 懒加载：仅拉取篇章列表 + totalSections + fixedSections
-  // 优先 book/parts，404 或失败时降级为 all-chapters 推导
+  // 懒加载：仅拉取篇章列表 + totalSections + fixedSections（book/parts，不再用 all-chapters）
   async loadParts() {
     this.setData({ partsLoading: true })
     try {
-      let res
-      try {
-        res = await app.request({ url: '/api/miniprogram/book/parts', silent: true })
-      } catch (e) {
-        console.log('[Chapters] book/parts 失败，降级 all-chapters:', e?.message || e)
-        res = null
-      }
+      const res = await app.request({ url: '/api/miniprogram/book/parts', silent: true })
       let parts = []
       let totalSections = 0
       let fixedSections = []
@@ -95,21 +88,6 @@ Page({
         parts = res.parts
         totalSections = res.totalSections ?? 0
         fixedSections = res.fixedSections || []
-      } else {
-        // 降级：从 all-chapters 推导 parts
-        const allRes = await app.request({ url: '/api/miniprogram/book/all-chapters', silent: true })
-        const list = (allRes?.data || allRes?.chapters || [])
-        totalSections = list.length
-        const pt = (c) => (c.partTitle || c.part_title || '').toLowerCase()
-        const exclude = (c) => !pt(c).includes('序言') && !pt(c).includes('尾声') && !pt(c).includes('附录')
-        const partMap = new Map()
-        list.filter(exclude).forEach(c => {
-          const pid = c.partId || c.part_id || 'default'
-          const ptitle = c.partTitle || c.part_title || '未分类'
-          if (!partMap.has(pid)) partMap.set(pid, { id: pid, title: ptitle, subtitle: '', chapterCount: 0 })
-          partMap.get(pid).chapterCount++
-        })
-        parts = Array.from(partMap.values())
       }
       const numbers = ['一', '二', '三', '四', '五', '六', '七', '八', '九', '十', '十一', '十二']
       const fixedMap = {}
@@ -185,7 +163,7 @@ Page({
         else bookDataFlat.push(r)
       })
       app.globalData.bookData = bookDataFlat
-      wx.setStorageSync('bookData', bookDataFlat)
+      wx.setStorage({ key: 'bookData', data: bookDataFlat }) // 异步写入，避免阻塞主线程
       this.setData({ bookData, _loadedChapters: loaded })
     } catch (e) {
       console.log('[Chapters] 加载章节失败:', e)
@@ -252,7 +230,7 @@ Page({
   // 跳转到阅读页（优先传 mid，与分享逻辑一致）
   goToRead(e) {
     const id = e.currentTarget.dataset.id
-    const mid = e.currentTarget.dataset.mid || app.getSectionMid(id)
+    const mid = e.currentTarget.dataset.mid
     trackClick('chapters', 'card_click', id || '章节')
     const q = mid ? `mid=${mid}` : `id=${id}`
     wx.navigateTo({ url: `/pages/read/read?${q}` })