diff --git a/.vscode/launch.json b/.vscode/launch.json
index c286fd1..307f621 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -2,20 +2,20 @@
   "version": "0.2.0",
   "configurations": [
     {
-      "name": "volume",
+      "name": "download",
       "type": "go",
       "request": "launch",
       "mode": "auto",
       "program": "${workspaceFolder}",
-      "args": ["download", "volume", "-n", "2025", "-v", "72693"]
-    },
-    {
-      "name": "novel",
-      "type": "go",
-      "request": "launch",
-      "mode": "auto",
-      "program": "${workspaceFolder}",
-      "args": ["download", "novel", "-n", "4325"]
+      "args": [
+        "download",
+        "-n",
+        "1410",
+        "-v",
+        "52748",
+        "-t",
+        "text"
+      ]
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index 537f7fd..88e6ba0 100644
--- a/README.md
+++ b/README.md
@@ -8,13 +8,13 @@
 1. 下载整本 `https://www.bilinovel.com/novel/2388.html`
 
    ```bash
-   bilinovel-downloader download novel -n 2388
+   bilinovel-downloader download -n 2388
    ```
 
 2. 下载单卷 `https://www.bilinovel.com/novel/2388/vol_84522.html`
 
    ```bash
-   bilinovel-downloader download volume -n 2388 -v 84522
+   bilinovel-downloader download -n 2388 -v 84522
    ```
 
 3. 对自动生成的 epub 格式不满意可以自行修改后使用命令打包
diff --git a/cmd/download.go b/cmd/download.go
index 5848887..9b8e9eb 100644
--- a/cmd/download.go
+++ b/cmd/download.go
@@ -2,7 +2,14 @@ package cmd
 
 import (
 	"bilinovel-downloader/downloader/bilinovel"
+	"bilinovel-downloader/epub"
+	"bilinovel-downloader/model"
+	"bilinovel-downloader/text"
+	"encoding/json"
 	"fmt"
+	"log"
+	"os"
+	"path/filepath"
 
 	"github.com/spf13/cobra"
 )
@@ -11,74 +18,160 @@ var downloadCmd = &cobra.Command{
 	Use:   "download",
 	Short: "Download a novel or volume",
 	Long:  "Download a novel or volume",
+	Run: func(cmd *cobra.Command, args []string) {
+		err := runDownloadNovel()
+		if err != nil {
+			log.Printf("failed to download novel: %v", err)
+		}
+	},
 }
 
-var downloadNovelCmd = &cobra.Command{
-	Use:   "novel",
-	Short: "Download a novel, default download all volumes",
-	Long:  "Download a novel, default download all volumes",
-	RunE:  runDownloadNovel,
-}
-
-var downloadVolumeCmd = &cobra.Command{
-	Use:   "volume",
-	Short: "Download a volume",
-	Long:  "Download a volume",
-	RunE:  runDownloadVolume,
-}
-
-type downloadNovelArgs struct {
-	NovelId    int `validate:"required"`
-	outputPath string
-}
-
-type downloadVolumeArgs struct {
+type downloadCmdArgs struct {
 	NovelId    int `validate:"required"`
 	VolumeId   int `validate:"required"`
 	outputPath string
+	outputType string
 }
 
 var (
-	novelArgs  downloadNovelArgs
-	volumeArgs downloadVolumeArgs
+	downloadArgs downloadCmdArgs
 )
 
 func init() {
-	downloadNovelCmd.Flags().IntVarP(&novelArgs.NovelId, "novel-id", "n", 0, "novel id")
-	downloadNovelCmd.Flags().StringVarP(&novelArgs.outputPath, "output-path", "o", "./novels", "output path")
-
-	downloadVolumeCmd.Flags().IntVarP(&volumeArgs.NovelId, "novel-id", "n", 0, "novel id")
-	downloadVolumeCmd.Flags().IntVarP(&volumeArgs.VolumeId, "volume-id", "v", 0, "volume id")
-	downloadVolumeCmd.Flags().StringVarP(&volumeArgs.outputPath, "output-path", "o", "./novels", "output path")
-
-	downloadCmd.AddCommand(downloadNovelCmd)
-	downloadCmd.AddCommand(downloadVolumeCmd)
+	downloadCmd.Flags().IntVarP(&downloadArgs.NovelId, "novel-id", "n", 0, "novel id")
+	downloadCmd.Flags().IntVarP(&downloadArgs.VolumeId, "volume-id", "v", 0, "volume id")
+	downloadCmd.Flags().StringVarP(&downloadArgs.outputPath, "output-path", "o", "novels", "output path")
+	downloadCmd.Flags().StringVarP(&downloadArgs.outputType, "output-type", "t", "epub", "output type, epub or text")
 	RootCmd.AddCommand(downloadCmd)
 }
 
-func runDownloadNovel(cmd *cobra.Command, args []string) error {
-	if novelArgs.NovelId == 0 {
+func runDownloadNovel() error {
+	downloader, err := bilinovel.New()
+	if err != nil {
+		return fmt.Errorf("failed to create downloader: %v", err)
+	}
+	if downloadArgs.NovelId == 0 {
 		return fmt.Errorf("novel id is required")
 	}
-	err := bilinovel.DownloadNovel(novelArgs.NovelId, novelArgs.outputPath)
-	if err != nil {
-		return fmt.Errorf("failed to download novel: %v", err)
+	if downloadArgs.VolumeId == 0 {
+		novel, err := downloadNovel(downloader)
+		if err != nil {
+			return fmt.Errorf("failed to get novel: %v", err)
+		}
+		switch downloadArgs.outputType {
+		case "epub":
+			for _, volume := range novel.Volumes {
+				err = epub.PackVolumeToEpub(volume, downloadArgs.outputPath, downloader.GetStyleCSS(), downloader.GetExtraFiles())
+				if err != nil {
+					return fmt.Errorf("failed to pack volume: %v", err)
+				}
+			}
+		case "text":
+			for _, volume := range novel.Volumes {
+				err = text.PackVolumeToText(volume, downloadArgs.outputPath)
+				if err != nil {
+					return fmt.Errorf("failed to pack volume: %v", err)
+				}
+			}
+		}
+	} else {
+		// 下载单卷
+		volume, err := downloadVolume(downloader)
+		if err != nil {
+			return fmt.Errorf("failed to get volume: %v", err)
+		}
+		switch downloadArgs.outputType {
+		case "epub":
+			err = epub.PackVolumeToEpub(volume, downloadArgs.outputPath, downloader.GetStyleCSS(), downloader.GetExtraFiles())
+			if err != nil {
+				return fmt.Errorf("failed to pack volume: %v", err)
+			}
+		case "text":
+			err = text.PackVolumeToText(volume, downloadArgs.outputPath)
+			if err != nil {
+				return fmt.Errorf("failed to pack volume: %v", err)
+			}
+		}
 	}
 
 	return nil
 }
 
-func runDownloadVolume(cmd *cobra.Command, args []string) error {
-	if volumeArgs.NovelId == 0 {
-		return fmt.Errorf("novel id is required")
-	}
-	if volumeArgs.VolumeId == 0 {
-		return fmt.Errorf("volume id is required")
-	}
-	err := bilinovel.DownloadVolume(volumeArgs.NovelId, volumeArgs.VolumeId, volumeArgs.outputPath)
+func downloadNovel(downloader model.Downloader) (*model.Novel, error) {
+	jsonPath := filepath.Join(downloadArgs.outputPath, fmt.Sprintf("novel-%d.json", downloadArgs.NovelId))
+	err := os.MkdirAll(filepath.Dir(jsonPath), 0755)
 	if err != nil {
-		return fmt.Errorf("failed to download volume: %v", err)
+		return nil, fmt.Errorf("failed to create directory: %v", err)
 	}
-
-	return nil
+	_, err = os.Stat(jsonPath)
+	novel := &model.Novel{}
+	if err != nil {
+		if os.IsNotExist(err) {
+			novel, err = downloader.GetNovel(downloadArgs.NovelId)
+			if err != nil {
+				return nil, fmt.Errorf("failed to get novel: %v", err)
+			}
+			jsonFile, err := os.Create(jsonPath)
+			if err != nil {
+				return nil, fmt.Errorf("failed to create json file: %v", err)
+			}
+			defer jsonFile.Close()
+			err = json.NewEncoder(jsonFile).Encode(novel)
+			if err != nil {
+				return nil, fmt.Errorf("failed to encode json file: %v", err)
+			}
+		} else {
+			return nil, fmt.Errorf("failed to get novel: %v", err)
+		}
+	} else {
+		jsonFile, err := os.Open(jsonPath)
+		if err != nil {
+			return nil, fmt.Errorf("failed to open json file: %v", err)
+		}
+		defer jsonFile.Close()
+		err = json.NewDecoder(jsonFile).Decode(novel)
+		if err != nil {
+			return nil, fmt.Errorf("failed to decode json file: %v", err)
+		}
+	}
+	return novel, nil
+}
+
+func downloadVolume(downloader model.Downloader) (*model.Volume, error) {
+	jsonPath := filepath.Join(downloadArgs.outputPath, fmt.Sprintf("volume-%d-%d.json", downloadArgs.NovelId, downloadArgs.VolumeId))
+	err := os.MkdirAll(filepath.Dir(jsonPath), 0755)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create directory: %v", err)
+	}
+	_, err = os.Stat(jsonPath)
+	volume := &model.Volume{}
+	if err != nil {
+		if os.IsNotExist(err) {
+			volume, err = downloader.GetVolume(downloadArgs.NovelId, downloadArgs.VolumeId)
+			if err != nil {
+				return nil, fmt.Errorf("failed to get volume: %v", err)
+			}
+			jsonFile, err := os.Create(jsonPath)
+			if err != nil {
+				return nil, fmt.Errorf("failed to create json file: %v", err)
+			}
+			err = json.NewEncoder(jsonFile).Encode(volume)
+			if err != nil {
+				return nil, fmt.Errorf("failed to encode json file: %v", err)
+			}
+		} else {
+			return nil, fmt.Errorf("failed to get volume: %v", err)
+		}
+	} else {
+		jsonFile, err := os.Open(jsonPath)
+		if err != nil {
+			return nil, fmt.Errorf("failed to open json file: %v", err)
+		}
+		defer jsonFile.Close()
+		err = json.NewDecoder(jsonFile).Decode(volume)
+		if err != nil {
+			return nil, fmt.Errorf("failed to decode json file: %v", err)
+		}
+	}
+	return volume, nil
 }
diff --git a/cmd/package.go b/cmd/package.go
index c28d945..697b92b 100644
--- a/cmd/package.go
+++ b/cmd/package.go
@@ -1,7 +1,7 @@
 package cmd
 
 import (
-	"bilinovel-downloader/downloader/bilinovel"
+	"bilinovel-downloader/epub"
 	"fmt"
 
 	"github.com/spf13/cobra"
@@ -28,7 +28,7 @@ func init() {
 }
 
 func runPackage(cmd *cobra.Command, args []string) error {
-	err := bilinovel.CreateEpub(pArgs.DirPath)
+	err := epub.PackEpub(pArgs.DirPath)
 	if err != nil {
 		return fmt.Errorf("failed to create epub: %v", err)
 	}
diff --git a/downloader/bilinovel/MI LANTING.ttf b/downloader/bilinovel/MI LANTING.ttf
new file mode 100644
index 0000000..32fb2c8
Binary files /dev/null and b/downloader/bilinovel/MI LANTING.ttf differ
diff --git a/downloader/bilinovel/bilinovel.go b/downloader/bilinovel/bilinovel.go
index ac0f777..0c54060 100644
--- a/downloader/bilinovel/bilinovel.go
+++ b/downloader/bilinovel/bilinovel.go
@@ -2,12 +2,11 @@ package bilinovel
 
 import (
 	"bilinovel-downloader/model"
-	"bilinovel-downloader/template"
 	"bilinovel-downloader/utils"
 	"bytes"
 	"context"
+	"crypto/sha256"
 	_ "embed"
-	"encoding/json"
 	"fmt"
 	"log"
 	"net/http"
@@ -17,17 +16,68 @@ import (
 	"regexp"
 	"strconv"
 	"strings"
+	"sync"
 	"time"
 
 	"github.com/PuerkitoBio/goquery"
-	"github.com/google/uuid"
+	mapper "github.com/bestnite/font-mapper"
+	"github.com/chromedp/cdproto/network"
+	"github.com/chromedp/chromedp"
 )
 
-func GetNovel(novelId int) (*model.Novel, error) {
-	novelUrl := fmt.Sprintf("https://www.bilinovel.com/novel/%v.html", novelId)
-	resp, err := utils.Request().Get(novelUrl)
+//go:embed read.ttf
+var readTTF []byte
+
+//go:embed "MI LANTING.ttf"
+var miLantingTTF []byte
+
+type Bilinovel struct {
+	fontMapper  *mapper.GlyphOutlineMapper
+	textOnly    bool
+	restyClient *utils.RestyClient
+	debug       bool
+}
+
+func New() (*Bilinovel, error) {
+	fontMapper, err := mapper.NewGlyphOutlineMapper(readTTF, miLantingTTF)
 	if err != nil {
-		return nil, fmt.Errorf("failed to get novel info: %v", err)
+		return nil, fmt.Errorf("failed to create font mapper: %v", err)
+	}
+	restyClient := utils.NewRestyClient(10)
+	return &Bilinovel{
+		fontMapper:  fontMapper,
+		textOnly:    false,
+		restyClient: restyClient,
+	}, nil
+}
+
+func (b *Bilinovel) SetTextOnly(textOnly bool) {
+	b.textOnly = textOnly
+}
+
+func (b *Bilinovel) SetDebug(debug bool) {
+	b.debug = debug
+}
+
+func (b *Bilinovel) GetExtraFiles() []model.ExtraFile {
+	return nil
+}
+
+//go:embed style.css
+var styleCSS []byte
+
+func (b *Bilinovel) GetStyleCSS() string {
+	return string(styleCSS)
+}
+
+func (b *Bilinovel) GetNovel(novelId int) (*model.Novel, error) {
+	if b.debug {
+		log.Printf("Getting novel %v\n", novelId)
+	}
+	novelUrl := fmt.Sprintf("https://www.bilinovel.com/novel/%v.html", novelId)
+	resp, err := b.restyClient.R().Get(novelUrl)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get novel info: %w", err)
 	}
 	if resp.StatusCode() != http.StatusOK {
 		return nil, fmt.Errorf("failed to get novel info: %v", resp.Status())
@@ -51,7 +101,7 @@ func GetNovel(novelId int) (*model.Novel, error) {
 		novel.Authors = append(novel.Authors, strings.TrimSpace(s.Text()))
 	})
 
-	volumes, err := getNovelVolumes(novelId)
+	volumes, err := b.getAllVolumes(novelId)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get novel volumes: %v", err)
 	}
@@ -60,11 +110,14 @@ func GetNovel(novelId int) (*model.Novel, error) {
 	return novel, nil
 }
 
-func GetVolume(novelId int, volumeId int) (*model.Volume, error) {
+func (b *Bilinovel) GetVolume(novelId int, volumeId int) (*model.Volume, error) {
+	if b.debug {
+		log.Printf("Getting volume %v of novel %v\n", volumeId, novelId)
+	}
 	novelUrl := fmt.Sprintf("https://www.bilinovel.com/novel/%v/catalog", novelId)
-	resp, err := utils.Request().Get(novelUrl)
+	resp, err := b.restyClient.R().Get(novelUrl)
 	if err != nil {
-		return nil, fmt.Errorf("failed to get novel info: %v", err)
+		return nil, fmt.Errorf("failed to get novel info: %w", err)
 	}
 	if resp.StatusCode() != http.StatusOK {
 		return nil, fmt.Errorf("failed to get novel info: %v", resp.Status())
@@ -89,7 +142,7 @@ func GetVolume(novelId int, volumeId int) (*model.Volume, error) {
 	}
 
 	volumeUrl := fmt.Sprintf("https://www.bilinovel.com/novel/%v/vol_%v.html", novelId, volumeId)
-	resp, err = utils.Request().Get(volumeUrl)
+	resp, err = b.restyClient.R().Get(volumeUrl)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get novel info: %v", err)
 	}
@@ -109,9 +162,14 @@ func GetVolume(novelId int, volumeId int) (*model.Volume, error) {
 	volume.SeriesIdx = seriesIdx
 	volume.Title = strings.TrimSpace(doc.Find(".book-title").First().Text())
 	volume.Description = strings.TrimSpace(doc.Find(".book-summary>content").First().Text())
-	volume.Cover = doc.Find(".book-cover").First().AttrOr("src", "")
 	volume.Url = volumeUrl
 	volume.Chapters = make([]*model.Chapter, 0)
+	volume.CoverUrl = doc.Find(".book-cover").First().AttrOr("src", "")
+	cover, err := b.getImg(volume.CoverUrl)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get cover: %v", err)
+	}
+	volume.Cover = cover
 
 	doc.Find(".authorname>a").Each(func(i int, s *goquery.Selection) {
 		volume.Authors = append(volume.Authors, strings.TrimSpace(s.Text()))
@@ -119,7 +177,6 @@ func GetVolume(novelId int, volumeId int) (*model.Volume, error) {
 	doc.Find(".illname>a").Each(func(i int, s *goquery.Selection) {
 		volume.Authors = append(volume.Authors, strings.TrimSpace(s.Text()))
 	})
-
 	doc.Find(".chapter-li.jsChapter").Each(func(i int, s *goquery.Selection) {
 		volume.Chapters = append(volume.Chapters, &model.Chapter{
 			Title: s.Find("a").Text(),
@@ -127,12 +184,51 @@ func GetVolume(novelId int, volumeId int) (*model.Volume, error) {
 		})
 	})
 
+	idRegexp := regexp.MustCompile(`/novel/(\d+)/(\d+).html`)
+	wg := sync.WaitGroup{}
+	errChan := make(chan error, len(volume.Chapters))
+	for i := range volume.Chapters {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			matches := idRegexp.FindStringSubmatch(volume.Chapters[i].Url)
+			if len(matches) > 0 {
+				chapterId, err := strconv.Atoi(matches[2])
+				if err != nil {
+					errChan <- fmt.Errorf("failed to convert chapter id: %v", err)
+					return
+				}
+				chapter, err := b.GetChapter(novelId, volumeId, chapterId)
+				if err != nil {
+					errChan <- fmt.Errorf("failed to get chapter: %v", err)
+					return
+				}
+				chapter.Id = chapterId
+				volume.Chapters[i] = chapter
+			} else {
+				errChan <- fmt.Errorf("failed to get chapter id: %v", volume.Chapters[i].Url)
+				return
+			}
+		}(i)
+	}
+	wg.Wait()
+	close(errChan)
+
+	// 检查是否有错误
+	for err := range errChan {
+		if err != nil {
+			return nil, err
+		}
+	}
 	return volume, nil
 }
 
-func getNovelVolumes(novelId int) ([]*model.Volume, error) {
+func (b *Bilinovel) getAllVolumes(novelId int) ([]*model.Volume, error) {
+	if b.debug {
+		log.Printf("Getting all volumes of novel %v\n", novelId)
+	}
 	catelogUrl := fmt.Sprintf("https://www.bilinovel.com/novel/%v/catalog", novelId)
-	resp, err := utils.Request().Get(catelogUrl)
+	resp, err := b.restyClient.R().Get(catelogUrl)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get catelog: %v", err)
 	}
@@ -162,7 +258,7 @@ func getNovelVolumes(novelId int) ([]*model.Volume, error) {
 		if err != nil {
 			return nil, fmt.Errorf("failed to convert volume id: %v", err)
 		}
-		volume, err := GetVolume(novelId, volumeId)
+		volume, err := b.GetVolume(novelId, volumeId)
 		if err != nil {
 			return nil, fmt.Errorf("failed to get volume info: %v", err)
 		}
@@ -173,207 +269,36 @@ func getNovelVolumes(novelId int) ([]*model.Volume, error) {
 	return volumes, nil
 }
 
-func DownloadNovel(novelId int, outputPath string) error {
-	log.Printf("Downloading Novel: %v", novelId)
-
-	novel, err := GetNovel(novelId)
-	if err != nil {
-		return fmt.Errorf("failed to get novel info: %v", err)
+func (b *Bilinovel) GetChapter(novelId int, volumeId int, chapterId int) (*model.Chapter, error) {
+	if b.debug {
+		log.Printf("Getting chapter %v of novel %v\n", chapterId, novelId)
 	}
-
-	outputPath = filepath.Join(outputPath, utils.CleanDirName(novel.Title))
-	err = os.MkdirAll(outputPath, 0755)
-	if err != nil {
-		return fmt.Errorf("failed to create output directory: %v", err)
-	}
-
-	for _, volume := range novel.Volumes {
-		err := downloadVolume(volume, outputPath)
-		if err != nil {
-			return fmt.Errorf("failed to download volume: %v", err)
-		}
-	}
-
-	return nil
-}
-
-func DownloadVolume(novelId, volumeId int, outputPath string) error {
-	volume, err := GetVolume(novelId, volumeId)
-	if err != nil {
-		return fmt.Errorf("failed to get volume info: %v", err)
-	}
-	err = downloadVolume(volume, outputPath)
-	if err != nil {
-		return fmt.Errorf("failed to download volume: %v", err)
-	}
-	return nil
-}
-
-func downloadVolume(volume *model.Volume, outputPath string) error {
-	log.Printf("Downloading Volume: %s", volume.Title)
-	outputPath = filepath.Join(outputPath, utils.CleanDirName(volume.Title))
-	err := os.MkdirAll(outputPath, 0755)
-	if err != nil {
-		return fmt.Errorf("failed to create output directory: %v", err)
-	}
-
-	_, err = os.Stat(filepath.Join(outputPath, "volume.json"))
-	if os.IsNotExist(err) {
-		for idx, chapter := range volume.Chapters {
-			err := DownloadChapter(idx, chapter, outputPath)
-			if err != nil {
-				return fmt.Errorf("failed to download chapter: %v", err)
-			}
-		}
-	} else {
-		jsonBytes, err := os.ReadFile(filepath.Join(outputPath, "volume.json"))
-		if err != nil {
-			return fmt.Errorf("failed to read volume: %v", err)
-		}
-		err = json.Unmarshal(jsonBytes, volume)
-		if err != nil {
-			return fmt.Errorf("failed to unmarshal volume: %v", err)
-		}
-		for idx, chapter := range volume.Chapters {
-			file, err := os.Create(filepath.Join(outputPath, fmt.Sprintf("OEBPS/Text/chapter-%03v.xhtml", idx+1)))
-			if err != nil {
-				return fmt.Errorf("failed to create chapter file: %v", err)
-			}
-			err = template.ContentXHTML(chapter).Render(context.Background(), file)
-			if err != nil {
-				return fmt.Errorf("failed to render text file: %v", err)
-			}
-		}
-	}
-
-	for i := range volume.Chapters {
-		volume.Chapters[i].ImageFullPaths = utils.Unique(volume.Chapters[i].ImageFullPaths)
-		volume.Chapters[i].ImageOEBPSPaths = utils.Unique(volume.Chapters[i].ImageOEBPSPaths)
-	}
-
-	jsonBytes, err := json.Marshal(volume)
-	if err != nil {
-		return fmt.Errorf("failed to marshal volume: %v", err)
-	}
-	err = os.WriteFile(filepath.Join(outputPath, "volume.json"), jsonBytes, 0644)
-	if err != nil {
-		return fmt.Errorf("failed to write volume: %v", err)
-	}
-
-	coverPath := filepath.Join(outputPath, "cover.jpeg")
-	err = os.MkdirAll(path.Dir(coverPath), 0755)
-	if err != nil {
-		return fmt.Errorf("failed to create cover directory: %v", err)
-	}
-	err = DownloadImg(volume.Cover, coverPath)
-	if err != nil {
-		return fmt.Errorf("failed to download cover: %v", err)
-	}
-
-	coverXHTMLPath := filepath.Join(outputPath, "OEBPS/Text/cover.xhtml")
-	err = os.MkdirAll(path.Dir(coverXHTMLPath), 0755)
-	if err != nil {
-		return fmt.Errorf("failed to create cover directory: %v", err)
-	}
-	file, err := os.Create(coverXHTMLPath)
-	if err != nil {
-		return fmt.Errorf("failed to create cover file: %v", err)
-	}
-	err = template.CoverXHTML(fmt.Sprintf(`../../cover%s`, strings.ReplaceAll(path.Ext(volume.Cover), "jpg", "jpeg"))).Render(context.Background(), file)
-	if err != nil {
-		return fmt.Errorf("failed to render cover: %v", err)
-	}
-
-	err = DownloadFont(filepath.Join(outputPath, "OEBPS/Fonts"))
-	if err != nil {
-		return fmt.Errorf("failed to download font: %v", err)
-	}
-
-	contentsXHTMLPath := filepath.Join(outputPath, "OEBPS/Text/contents.xhtml")
-	err = os.MkdirAll(path.Dir(contentsXHTMLPath), 0755)
-	if err != nil {
-		return fmt.Errorf("failed to create contents directory: %v", err)
-	}
-	file, err = os.Create(contentsXHTMLPath)
-	if err != nil {
-		return fmt.Errorf("failed to create contents file: %v", err)
-	}
-	contents := strings.Builder{}
-	contents.WriteString(`<nav epub:type="toc" id="toc">`)
-	contents.WriteString(`<ol>`)
-	for _, chapter := range volume.Chapters {
-		contents.WriteString(fmt.Sprintf(`<li><a href="%s">%s</a></li>`, strings.TrimPrefix(chapter.TextOEBPSPath, "Text/"), chapter.Title))
-	}
-	contents.WriteString(`</ol>`)
-	contents.WriteString(`</nav>`)
-	err = template.ContentXHTML(&model.Chapter{
-		Title:   "目录",
-		Content: contents.String(),
-	}).Render(context.Background(), file)
-	if err != nil {
-		return fmt.Errorf("failed to render contents: %v", err)
-	}
-
-	err = CreateContainerXML(outputPath)
-	if err != nil {
-		return fmt.Errorf("failed to create container xml: %v", err)
-	}
-
-	u, err := uuid.NewV7()
-	if err != nil {
-		return fmt.Errorf("failed to generate uuid: %v", err)
-	}
-
-	err = CreateContentOPF(outputPath, u.String(), volume)
-	if err != nil {
-		return fmt.Errorf("failed to create content opf: %v", err)
-	}
-
-	err = CreateEpub(outputPath)
-	if err != nil {
-		return fmt.Errorf("failed to create epub: %v", err)
-	}
-
-	return nil
-}
-
-func DownloadChapter(chapterIdx int, chapter *model.Chapter, outputPath string) error {
-	chapter.TextFullPath = filepath.Join(outputPath, fmt.Sprintf("OEBPS/Text/chapter-%03v.xhtml", chapterIdx+1))
-	chapter.TextOEBPSPath = fmt.Sprintf("Text/chapter-%03v.xhtml", chapterIdx+1)
-	err := os.MkdirAll(path.Dir(chapter.TextFullPath), 0755)
-	if err != nil {
-		return fmt.Errorf("failed to create text directory: %v", err)
-	}
-
 	page := 1
+	chapter := &model.Chapter{
+		Id:       chapterId,
+		NovelId:  novelId,
+		VolumeId: volumeId,
+		Url:      fmt.Sprintf("https://www.bilinovel.com/novel/%v/%v.html", novelId, chapterId),
+	}
 	for {
-		hasNext, err := downloadChapterByPage(page, chapterIdx, chapter, outputPath)
+		hasNext, err := b.getChapterByPage(chapter, page)
 		if err != nil {
-			return fmt.Errorf("failed to download chapter: %v", err)
+			return nil, fmt.Errorf("failed to download chapter: %w", err)
 		}
 		if !hasNext {
 			break
 		}
 		page++
-		time.Sleep(time.Second)
 	}
-
-	file, err := os.Create(chapter.TextFullPath)
-	if err != nil {
-		return fmt.Errorf("failed to create text file: %v", err)
-	}
-
-	err = template.ContentXHTML(chapter).Render(context.Background(), file)
-	if err != nil {
-		return fmt.Errorf("failed to render text file: %v", err)
-	}
-
-	return nil
+	return chapter, nil
 }
 
-func downloadChapterByPage(page, chapterIdx int, chapter *model.Chapter, outputPath string) (bool, error) {
+func (b *Bilinovel) getChapterByPage(chapter *model.Chapter, page int) (bool, error) {
+	if b.debug {
+		log.Printf("Getting chapter %v by page %v\n", chapter.Id, page)
+	}
+
 	Url := strings.TrimSuffix(chapter.Url, ".html") + fmt.Sprintf("_%v.html", page)
-	log.Printf("Downloading Chapter: %s", Url)
 
 	hasNext := false
 	headers := map[string]string{
@@ -381,251 +306,185 @@ func downloadChapterByPage(page, chapterIdx int, chapter *model.Chapter, outputP
 		"Accept-Language": "zh-CN,zh;q=0.9,en-GB;q=0.8,en;q=0.7,zh-TW;q=0.6",
 		"Cookie":          "night=1;",
 	}
-	resp, err := utils.Request().SetHeaders(headers).Get(Url)
+	resp, err := b.restyClient.R().SetHeaders(headers).Get(Url)
 	if err != nil {
-		return hasNext, err
+		return false, fmt.Errorf("failed to get chapter: %w", err)
 	}
 	if resp.StatusCode() != http.StatusOK {
-		return hasNext, fmt.Errorf("failed to get chapter: %v", resp.Status())
+		return false, fmt.Errorf("failed to get chapter: %v", resp.Status())
 	}
 
 	if strings.Contains(resp.String(), `<a onclick="window.location.href = ReadParams.url_next;">下一頁</a>`) {
 		hasNext = true
 	}
 
-	doc, err := goquery.NewDocumentFromReader(bytes.NewReader(resp.Body()))
+	html := resp.Body()
+	// 解决乱序问题
+	resortedHtml, err := ProcessContentWithChromedp(string(html))
 	if err != nil {
-		fmt.Println(err)
-		return hasNext, err
+		return false, fmt.Errorf("failed to process html: %w", err)
+	}
+	doc, err := goquery.NewDocumentFromReader(strings.NewReader(resortedHtml))
+	if err != nil {
+		return false, fmt.Errorf("failed to parse html: %w", err)
 	}
 
-	imgSavePath := fmt.Sprintf("OEBPS/Images/chapter-%03v", chapterIdx+1)
-
+	if page == 1 {
+		chapter.Title = doc.Find("#atitle").Text()
+	}
 	content := doc.Find("#acontent").First()
 	content.Find(".cgo").Remove()
 	content.Find("center").Remove()
 	content.Find(".google-auto-placed").Remove()
-	if strings.Contains(resp.String(), `font-family: "read"`) {
-		content.Find("p").Last().AddClass("read-font")
-	}
 
-	content.Find("img").Each(func(i int, s *goquery.Selection) {
+	if strings.Contains(resp.String(), `font-family: "read"`) {
+		html, err := content.Find("p").Last().Html()
 		if err != nil {
-			return
+			return false, fmt.Errorf("failed to get html: %v", err)
 		}
-		imgUrl := s.AttrOr("data-src", "")
-		if imgUrl == "" {
-			imgUrl = s.AttrOr("src", "")
-			if imgUrl == "" {
-				return
+		builder := strings.Builder{}
+		for _, r := range html {
+			_, newRune, ok := b.fontMapper.MappingRune(r)
+			if ok {
+				builder.WriteRune(newRune)
 			}
 		}
-
-		fileName := filepath.Join(imgSavePath, fmt.Sprintf("%03v%s", len(chapter.ImageFullPaths)+1, path.Ext(imgUrl)))
-		err = DownloadImg(imgUrl, filepath.Join(outputPath, fileName))
-		if err == nil {
-			s.SetAttr("src", "../"+strings.TrimPrefix(fileName, "OEBPS/"))
-			s.RemoveAttr("class")
-			s.RemoveAttr("data-src")
-			chapter.ImageFullPaths = append(chapter.ImageFullPaths, filepath.Join(outputPath, fileName))
-			chapter.ImageOEBPSPaths = append(chapter.ImageOEBPSPaths, strings.TrimPrefix(fileName, "OEBPS/"))
-		}
-	})
-	if err != nil {
-		return false, fmt.Errorf("failed to download img: %v", err)
+		content.Find("p").Last().SetHtml(builder.String())
 	}
 
-	html, err := content.Html()
+	if b.textOnly {
+		content.Find("img").Remove()
+	} else {
+		content.Find("img").Each(func(i int, s *goquery.Selection) {
+			imgUrl := s.AttrOr("data-src", "")
+			if imgUrl == "" {
+				imgUrl = s.AttrOr("src", "")
+				if imgUrl == "" {
+					return
+				}
+			}
+
+			imageHash := sha256.Sum256([]byte(imgUrl))
+			imageFilename := fmt.Sprintf("%x%s", string(imageHash[:]), path.Ext(imgUrl))
+			s.SetAttr("src", imageFilename)
+			s.SetAttr("alt", imgUrl)
+			img, err := b.getImg(imgUrl)
+			if err != nil {
+				return
+			}
+			if chapter.Content == nil {
+				chapter.Content = &model.ChaperContent{}
+			}
+			if chapter.Content.Images == nil {
+				chapter.Content.Images = make(map[string][]byte)
+			}
+			chapter.Content.Images[imageFilename] = img
+		})
+	}
+
+	htmlStr, err := content.Html()
 	if err != nil {
 		return false, fmt.Errorf("failed to get html: %v", err)
 	}
 
-	chapter.Content += strings.TrimSpace(html)
+	if chapter.Content == nil {
+		chapter.Content = &model.ChaperContent{}
+	}
+	chapter.Content.Html += strings.TrimSpace(htmlStr)
 
 	return hasNext, nil
 }
 
-func DownloadImg(url string, fileName string) error {
-	_, err := os.Stat(fileName)
-	if !os.IsNotExist(err) {
-		return nil
+func (b *Bilinovel) getImg(url string) ([]byte, error) {
+	if b.debug {
+		log.Printf("Getting img %v\n", url)
 	}
-
-	log.Printf("Downloading Image: %s", url)
-	dir := filepath.Dir(fileName)
-	err = os.MkdirAll(dir, 0755)
+	resp, err := b.restyClient.R().SetHeader("Referer", "https://www.bilinovel.com").Get(url)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
-	resp, err := utils.Request().SetHeader("Referer", "https://www.bilinovel.com").Get(url)
-	if err != nil {
-		return err
-	}
-
-	err = os.WriteFile(fileName, resp.Body(), 0644)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	return resp.Body(), nil
 }
 
-func CreateContainerXML(dirPath string) error {
-	containerPath := filepath.Join(dirPath, "META-INF/container.xml")
-	err := os.MkdirAll(path.Dir(containerPath), 0755)
+func ProcessContentWithChromedp(htmlContent string) (string, error) {
+	tempFile, err := os.CreateTemp("", "bilinovel-temp-*.html")
 	if err != nil {
-		return fmt.Errorf("failed to create container directory: %v", err)
+		return "", fmt.Errorf("failed to create temp file: %w", err)
 	}
-	file, err := os.Create(containerPath)
+	defer os.Remove(tempFile.Name())
+	_, err = tempFile.WriteString(htmlContent)
 	if err != nil {
-		return fmt.Errorf("failed to create container file: %v", err)
+		return "", fmt.Errorf("failed to write temp file: %w", err)
 	}
-	err = template.ContainerXML().Render(context.Background(), file)
-	if err != nil {
-		return fmt.Errorf("failed to render container: %v", err)
-	}
-	return nil
-}
+	tempFile.Close()
+	tempFilePath := tempFile.Name()
 
-func CreateContentOPF(dirPath string, uuid string, volume *model.Volume) error {
-	creators := make([]model.DCCreator, 0)
-	for _, author := range volume.Authors {
-		creators = append(creators, model.DCCreator{
-			Value: author,
-		})
-	}
-	dc := &model.DublinCoreMetadata{
-		Titles: []model.DCTitle{
-			{
-				Value: volume.Title,
-			},
-		},
-		Identifiers: []model.DCIdentifier{
-			{
-				Value: fmt.Sprintf("urn:uuid:%s", uuid),
-				ID:    "book-id",
-				// Scheme: "UUID",
-			},
-		},
-		Languages: []model.DCLanguage{
-			{
-				Value: "zh-CN",
-			},
-		},
-		Descriptions: []model.DCDescription{
-			{
-				Value: volume.Description,
-			},
-		},
-		Creators: creators,
-		Metas: []model.DublinCoreMeta{
-			{
-				Name:    "cover",
-				Content: "cover",
-			},
-			{
-				Property: "dcterms:modified",
-				Value:    time.Now().UTC().Format("2006-01-02T15:04:05Z"),
-			},
-			{
-				Name:    "calibre:series",
-				Content: volume.NovelTitle,
-			},
-			{
-				Name:    "calibre:series_index",
-				Content: strconv.Itoa(volume.SeriesIdx),
-			},
-		},
-	}
-	manifest := &model.Manifest{
-		Items: make([]model.ManifestItem, 0),
-	}
-	manifest.Items = append(manifest.Items, model.ManifestItem{
-		ID:    "cover.xhtml",
-		Link:  "OEBPS/Text/cover.xhtml",
-		Media: "application/xhtml+xml",
-	})
-	manifest.Items = append(manifest.Items, model.ManifestItem{
-		ID:         "contents.xhtml",
-		Link:       "OEBPS/Text/contents.xhtml",
-		Media:      "application/xhtml+xml",
-		Properties: "nav",
-	})
-	manifest.Items = append(manifest.Items, model.ManifestItem{
-		ID:         "cover",
-		Link:       fmt.Sprintf("cover%s", strings.ReplaceAll(path.Ext(volume.Cover), "jpg", "jpeg")),
-		Media:      fmt.Sprintf("image/%s", strings.ReplaceAll(strings.TrimPrefix(path.Ext(volume.Cover), "."), "jpg", "jpeg")),
-		Properties: "cover-image",
-	})
-	manifest.Items = append(manifest.Items, model.ManifestItem{
-		ID:    "read.ttf",
-		Link:  "OEBPS/Fonts/read.ttf",
-		Media: "application/vnd.ms-opentype",
-	})
-	for _, chapter := range volume.Chapters {
-		manifest.Items = append(manifest.Items, model.ManifestItem{
-			ID:    path.Base(chapter.TextOEBPSPath),
-			Link:  "OEBPS/" + chapter.TextOEBPSPath,
-			Media: "application/xhtml+xml",
-		})
-		for _, image := range chapter.ImageOEBPSPaths {
-			item := model.ManifestItem{
-				ID:   strings.Join(strings.Split(strings.ToLower(image), string(filepath.Separator)), "-"),
-				Link: "OEBPS/" + image,
-			}
-			item.Media = fmt.Sprintf("image/%s", strings.ReplaceAll(strings.TrimPrefix(path.Ext(volume.Cover), "."), "jpg", "jpeg"))
-			manifest.Items = append(manifest.Items, item)
-		}
-	}
-	manifest.Items = append(manifest.Items, model.ManifestItem{
-		ID:    "style",
-		Link:  "style.css",
-		Media: "text/css",
-	})
+	// 创建chromedp选项
+	opts := append(chromedp.DefaultExecAllocatorOptions[:],
+		chromedp.Flag("headless", true),
+		chromedp.Flag("disable-gpu", true),
+		chromedp.Flag("disable-dev-shm-usage", true),
+		chromedp.Flag("disable-extensions", true),
+		chromedp.Flag("no-sandbox", true),
+	)
 
-	spine := &model.Spine{
-		Items: make([]model.SpineItem, 0),
-	}
-	for _, item := range manifest.Items {
-		if filepath.Ext(item.Link) == ".xhtml" {
-			spine.Items = append(spine.Items, model.SpineItem{
-				IDref: item.ID,
+	allocCtx, cancel := chromedp.NewExecAllocator(context.Background(), opts...)
+	defer cancel()
+
+	ctx, cancel := chromedp.NewContext(allocCtx)
+	defer cancel()
+
+	// 设置超时
+	ctx, cancel = context.WithTimeout(ctx, 30*time.Second)
+	defer cancel()
+
+	var processedHTML string
+
+	// 3. 执行chromedp任务并获取页面代码
+	err = chromedp.Run(ctx,
+		network.Enable(),
+
+		// 等待JavaScript执行完成
+		chromedp.ActionFunc(func(ctx context.Context) error {
+			// 监听网络事件
+			networkEventChan := make(chan bool, 1)
+			requestID := ""
+			chromedp.ListenTarget(ctx, func(ev interface{}) {
+				switch ev := ev.(type) {
+				case *network.EventRequestWillBeSent:
+					if strings.Contains(ev.Request.URL, "chapterlog.js") {
+						requestID = ev.RequestID.String()
+					}
+				case *network.EventLoadingFinished:
+					if ev.RequestID.String() == requestID {
+						networkEventChan <- true
+					}
+				}
 			})
-		}
-	}
-	contentOPFPath := filepath.Join(dirPath, "content.opf")
-	err := os.MkdirAll(path.Dir(contentOPFPath), 0755)
+
+			go func() {
+				select {
+				case <-networkEventChan:
+				case <-time.After(30 * time.Second):
+					log.Println("Timeout waiting for external script")
+				case <-ctx.Done():
+					log.Println("Context cancelled")
+				}
+			}()
+			return nil
+		}),
+		// 导航到本地文件
+		chromedp.Navigate("file://"+filepath.ToSlash(tempFilePath)),
+		// 等待页面加载完成
+		chromedp.WaitVisible(`#acontent`, chromedp.ByID),
+		// 获取页面的HTML代码
+		chromedp.OuterHTML("html", &processedHTML, chromedp.ByQuery),
+	)
+
 	if err != nil {
-		return fmt.Errorf("failed to create content directory: %v", err)
+		return "", fmt.Errorf("chromedp execution failed: %w", err)
 	}
-	file, err := os.Create(contentOPFPath)
-	if err != nil {
-		return fmt.Errorf("failed to create content file: %v", err)
-	}
-	err = template.ContentOPF("book-id", dc, manifest, spine, nil).Render(context.Background(), file)
-	if err != nil {
-		return fmt.Errorf("failed to render content: %v", err)
-	}
-	return nil
-}
-
-//go:embed read.ttf
-var readTTF []byte
-
-func DownloadFont(outputPath string) error {
-	log.Printf("Writing Font: %s", outputPath)
-
-	fontPath := filepath.Join(outputPath, "read.ttf")
-	err := os.MkdirAll(path.Dir(fontPath), 0755)
-	if err != nil {
-		return fmt.Errorf("failed to create font directory: %v", err)
-	}
-
-	err = os.WriteFile(fontPath, readTTF, 0644)
-	if err != nil {
-		return fmt.Errorf("failed to write font: %v", err)
-	}
-
-	return nil
+
+	return processedHTML, nil
 }
diff --git a/downloader/bilinovel/epub.go b/downloader/bilinovel/epub.go
deleted file mode 100644
index 81846a8..0000000
--- a/downloader/bilinovel/epub.go
+++ /dev/null
@@ -1,122 +0,0 @@
-package bilinovel
-
-import (
-	"archive/zip"
-	"io"
-	"log"
-	"os"
-	"path/filepath"
-)
-
-func CreateEpub(path string) error {
-	log.Printf("Creating epub for %s", path)
-
-	savePath := path + ".epub"
-	zipFile, err := os.Create(savePath)
-	if err != nil {
-		return err
-	}
-	defer zipFile.Close()
-
-	zipWriter := zip.NewWriter(zipFile)
-	defer zipWriter.Close()
-
-	err = addStringToZip(zipWriter, "mimetype", "application/epub+zip", zip.Store)
-	if err != nil {
-		return err
-	}
-
-	err = addDirContentToZip(zipWriter, path, zip.Deflate)
-	if err != nil {
-		return err
-	}
-
-	err = addStringToZip(zipWriter, "style.css", StyleCSS, zip.Deflate)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-// func addFileToZip(zipWriter *zip.Writer, filename string, relPath string, method uint16) error {
-// 	file, err := os.Open(filename)
-// 	if err != nil {
-// 		return err
-// 	}
-// 	defer file.Close()
-
-// 	info, err := file.Stat()
-// 	if err != nil {
-// 		return err
-// 	}
-
-// 	header, err := zip.FileInfoHeader(info)
-// 	if err != nil {
-// 		return err
-// 	}
-// 	header.Name = relPath
-// 	header.Method = method
-
-// 	writer, err := zipWriter.CreateHeader(header)
-// 	if err != nil {
-// 		return err
-// 	}
-
-// 	_, err = io.Copy(writer, file)
-// 	return err
-// }
-
-func addStringToZip(zipWriter *zip.Writer, relPath, content string, method uint16) error {
-	header := &zip.FileHeader{
-		Name:   relPath,
-		Method: method,
-	}
-	writer, err := zipWriter.CreateHeader(header)
-	if err != nil {
-		return err
-	}
-
-	_, err = writer.Write([]byte(content))
-	return err
-}
-
-func addDirContentToZip(zipWriter *zip.Writer, dirPath string, method uint16) error {
-	return filepath.Walk(dirPath, func(filePath string, info os.FileInfo, err error) error {
-		if filepath.Base(filePath) == "volume.json" {
-			return nil
-		}
-		if err != nil {
-			return err
-		}
-		if info.IsDir() {
-			return nil
-		}
-
-		relPath, err := filepath.Rel(dirPath, filePath)
-		if err != nil {
-			return err
-		}
-
-		file, err := os.Open(filePath)
-		if err != nil {
-			return err
-		}
-		defer file.Close()
-
-		header, err := zip.FileInfoHeader(info)
-		if err != nil {
-			return err
-		}
-		header.Name = relPath
-		header.Method = method
-
-		writer, err := zipWriter.CreateHeader(header)
-		if err != nil {
-			return err
-		}
-
-		_, err = io.Copy(writer, file)
-		return err
-	})
-}
diff --git a/downloader/bilinovel/style.css.go b/downloader/bilinovel/style.css
similarity index 69%
rename from downloader/bilinovel/style.css.go
rename to downloader/bilinovel/style.css
index 3efa107..0f6f132 100644
--- a/downloader/bilinovel/style.css.go
+++ b/downloader/bilinovel/style.css
@@ -1,19 +1,3 @@
-package bilinovel
-
-const StyleCSS = `
-@font-face {
-  font-family: "MI LANTING";
-  src: url(OEBPS/Fonts/read.ttf);
-}
-
-.read-font {
-  display: block;
-  font-family: "MI LANTING", serif;
-  font-size: 1.33333em;
-  text-indent: 2em;
-  margin: 0.8em 0;
-}
-
 body > div {
   margin: 0 auto;
   padding: 20px;
@@ -53,4 +37,3 @@ img {
   margin-top: 1em;
   margin-bottom: 1em;
 }
-`
diff --git a/epub/wrapper.go b/epub/wrapper.go
new file mode 100644
index 0000000..6f6152b
--- /dev/null
+++ b/epub/wrapper.go
@@ -0,0 +1,363 @@
+package epub
+
+import (
+	"archive/zip"
+	"bilinovel-downloader/model"
+	"bilinovel-downloader/template"
+	"bilinovel-downloader/utils"
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+func PackVolumeToEpub(volume *model.Volume, outputPath string, styleCSS string, extraFiles []model.ExtraFile) error {
+	outputPath = filepath.Join(outputPath, utils.CleanDirName(volume.Title))
+	_, err := os.Stat(outputPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			err = os.MkdirAll(outputPath, 0755)
+			if err != nil {
+				return fmt.Errorf("failed to create output directory: %v", err)
+			}
+		} else {
+			return fmt.Errorf("failed to get output directory: %v", err)
+		}
+	} else {
+		err = os.RemoveAll(outputPath)
+		if err != nil {
+			return fmt.Errorf("failed to remove output directory: %v", err)
+		}
+		err = os.MkdirAll(outputPath, 0755)
+		if err != nil {
+			return fmt.Errorf("failed to create output directory: %v", err)
+		}
+	}
+
+	// 将文字写入 OEBPS/Text/chapter-%03v.xhtml
+	// 将图片写入 OEBPS/Images/chapter-%03v/
+	for i, chapter := range volume.Chapters {
+		imageNames := make([]string, 0)
+		for imgName, imgData := range chapter.Content.Images {
+			imageNames = append(imageNames, imgName)
+			imgPath := filepath.Join(outputPath, fmt.Sprintf("OEBPS/Images/chapter-%03v/%s", i, imgName))
+			err := os.MkdirAll(filepath.Dir(imgPath), 0755)
+			if err != nil {
+				return fmt.Errorf("failed to create image directory: %v", err)
+			}
+			err = os.WriteFile(imgPath, imgData, 0644)
+			if err != nil {
+				return fmt.Errorf("failed to write image: %v", err)
+			}
+		}
+		chapterPath := filepath.Join(outputPath, fmt.Sprintf("OEBPS/Text/chapter-%03v.xhtml", i))
+		err = os.MkdirAll(filepath.Dir(chapterPath), 0755)
+		if err != nil {
+			return fmt.Errorf("failed to create chapter directory: %v", err)
+		}
+		file, err := os.Create(chapterPath)
+		if err != nil {
+			return fmt.Errorf("failed to create chapter file: %v", err)
+		}
+		defer file.Close()
+		text := chapter.Content.Html
+		for _, imgName := range imageNames {
+			text = strings.ReplaceAll(text, imgName, fmt.Sprintf("../Images/chapter-%03v/%s", i, imgName))
+		}
+		err = template.ContentXHTML(chapter.Title, text).Render(context.Background(), file)
+		if err != nil {
+			return fmt.Errorf("failed to write chapter: %v", err)
+		}
+	}
+
+	// 将 Cover 写入
+	coverPath := filepath.Join(outputPath, fmt.Sprintf("cover%s", filepath.Ext(volume.CoverUrl)))
+	err = os.WriteFile(coverPath, volume.Cover, 0644)
+	if err != nil {
+		return fmt.Errorf("failed to write cover: %v", err)
+	}
+
+	// 将 CoverXHTML 写入 OEBPS/Text/cover.xhtml
+	coverXHTMLPath := filepath.Join(outputPath, "OEBPS/Text/cover.xhtml")
+	file, err := os.Create(coverXHTMLPath)
+	if err != nil {
+		return fmt.Errorf("failed to create cover XHTML file: %v", err)
+	}
+	defer file.Close()
+	err = template.CoverXHTML(fmt.Sprintf("../../%s", filepath.Base(coverPath))).Render(context.Background(), file)
+	if err != nil {
+		return fmt.Errorf("failed to render cover XHTML: %v", err)
+	}
+
+	// OEBPS/Text/contents.xhtml 目录
+	contentsXHTMLPath := filepath.Join(outputPath, "OEBPS/Text/contents.xhtml")
+	file, err = os.Create(contentsXHTMLPath)
+	if err != nil {
+		return fmt.Errorf("failed to create contents XHTML file: %v", err)
+	}
+	defer file.Close()
+	contents := strings.Builder{}
+	contents.WriteString(`<nav epub:type="toc" id="toc">`)
+	contents.WriteString(`<ol>`)
+	for i, chapter := range volume.Chapters {
+		contents.WriteString(fmt.Sprintf(`<li><a href="chapter-%03v.xhtml">%s</a></li>`, i, chapter.Title))
+	}
+	contents.WriteString(`</ol>`)
+	contents.WriteString(`</nav>`)
+	err = template.ContentXHTML("目录", contents.String()).Render(context.Background(), file)
+	if err != nil {
+		return fmt.Errorf("failed to render contents XHTML: %v", err)
+	}
+
+	// ContainerXML
+	containerPath := filepath.Join(outputPath, "META-INF/container.xml")
+	err = os.MkdirAll(filepath.Dir(containerPath), 0755)
+	if err != nil {
+		return fmt.Errorf("failed to create container directory: %v", err)
+	}
+	file, err = os.Create(containerPath)
+	if err != nil {
+		return fmt.Errorf("failed to create container file: %v", err)
+	}
+	defer file.Close()
+	err = template.ContainerXML().Render(context.Background(), file)
+	if err != nil {
+		return fmt.Errorf("failed to render container: %v", err)
+	}
+
+	// ContentOPF
+	u := uuid.New()
+	err = CreateContentOPF(outputPath, u.String(), volume, extraFiles)
+	if err != nil {
+		return fmt.Errorf("failed to create content OPF: %v", err)
+	}
+
+	// 写入 CSS
+	cssPath := filepath.Join(outputPath, "style.css")
+	err = os.WriteFile(cssPath, []byte(styleCSS), 0644)
+	if err != nil {
+		return fmt.Errorf("failed to write CSS: %v", err)
+	}
+
+	// 写入 extraFiles
+	for _, file := range extraFiles {
+		extraFilePath := filepath.Join(outputPath, file.Path)
+		err = os.WriteFile(extraFilePath, file.Data, 0644)
+		if err != nil {
+			return fmt.Errorf("failed to write extra file: %v", err)
+		}
+	}
+
+	// 打包成 epub 文件
+	err = PackEpub(outputPath)
+	if err != nil {
+		return fmt.Errorf("failed to pack epub: %v", err)
+	}
+	return nil
+}
+
+func CreateContentOPF(outputPath string, uuid string, volume *model.Volume, extraFiles []model.ExtraFile) error {
+	creators := make([]model.DCCreator, 0)
+	for _, author := range volume.Authors {
+		creators = append(creators, model.DCCreator{
+			Value: author,
+		})
+	}
+	dc := &model.DublinCoreMetadata{
+		Titles: []model.DCTitle{
+			{
+				Value: volume.Title,
+			},
+		},
+		Identifiers: []model.DCIdentifier{
+			{
+				Value: fmt.Sprintf("urn:uuid:%s", uuid),
+				ID:    "book-id",
+				// Scheme: "UUID",
+			},
+		},
+		Languages: []model.DCLanguage{
+			{
+				Value: "zh-CN",
+			},
+		},
+		Descriptions: []model.DCDescription{
+			{
+				Value: volume.Description,
+			},
+		},
+		Creators: creators,
+		Metas: []model.DublinCoreMeta{
+			{
+				Name:    "cover",
+				Content: "cover",
+			},
+			{
+				Property: "dcterms:modified",
+				Value:    time.Now().UTC().Format("2006-01-02T15:04:05Z"),
+			},
+			{
+				Name:    "calibre:series",
+				Content: volume.NovelTitle,
+			},
+			{
+				Name:    "calibre:series_index",
+				Content: strconv.Itoa(volume.SeriesIdx),
+			},
+		},
+	}
+	manifest := &model.Manifest{
+		Items: make([]model.ManifestItem, 0),
+	}
+	manifest.Items = append(manifest.Items, model.ManifestItem{
+		ID:    "cover.xhtml",
+		Link:  "OEBPS/Text/cover.xhtml",
+		Media: "application/xhtml+xml",
+	})
+	manifest.Items = append(manifest.Items, model.ManifestItem{
+		ID:         "contents.xhtml",
+		Link:       "OEBPS/Text/contents.xhtml",
+		Media:      "application/xhtml+xml",
+		Properties: "nav",
+	})
+	manifest.Items = append(manifest.Items, model.ManifestItem{
+		ID:         "cover",
+		Link:       fmt.Sprintf("cover%s", filepath.Ext(volume.CoverUrl)),
+		Media:      fmt.Sprintf("image/%s", strings.ReplaceAll(strings.TrimPrefix(filepath.Ext(volume.CoverUrl), "."), "jpg", "jpeg")),
+		Properties: "cover-image",
+	})
+	for i, chapter := range volume.Chapters {
+		manifest.Items = append(manifest.Items, model.ManifestItem{
+			ID:    fmt.Sprintf("chapter-%03v.xhtml", i),
+			Link:  fmt.Sprintf("OEBPS/Text/chapter-%03v.xhtml", i),
+			Media: "application/xhtml+xml",
+		})
+		for filename := range chapter.Content.Images {
+			item := model.ManifestItem{
+				ID:    fmt.Sprintf("chapter-%03v-%s", i, filepath.Ext(filename)),
+				Link:  fmt.Sprintf("OEBPS/Images/chapter-%03v/%s", i, filepath.Ext(filename)),
+				Media: fmt.Sprintf("image/%s", strings.ReplaceAll(strings.TrimPrefix(filepath.Ext(filename), "."), "jpg", "jpeg")),
+			}
+			manifest.Items = append(manifest.Items, item)
+		}
+	}
+	manifest.Items = append(manifest.Items, model.ManifestItem{
+		ID:    "style",
+		Link:  "style.css",
+		Media: "text/css",
+	})
+	// ExtraFiles
+	for _, file := range extraFiles {
+		manifest.Items = append(manifest.Items, file.ManifestItem)
+	}
+
+	spine := &model.Spine{
+		Items: make([]model.SpineItem, 0),
+	}
+	for _, item := range manifest.Items {
+		if filepath.Ext(item.Link) == ".xhtml" {
+			spine.Items = append(spine.Items, model.SpineItem{
+				IDref: item.ID,
+			})
+		}
+	}
+	contentOPFPath := filepath.Join(outputPath, "content.opf")
+	err := os.MkdirAll(path.Dir(contentOPFPath), 0755)
+	if err != nil {
+		return fmt.Errorf("failed to create content directory: %v", err)
+	}
+	file, err := os.Create(contentOPFPath)
+	if err != nil {
+		return fmt.Errorf("failed to create content file: %v", err)
+	}
+	err = template.ContentOPF("book-id", dc, manifest, spine, nil).Render(context.Background(), file)
+	if err != nil {
+		return fmt.Errorf("failed to render content: %v", err)
+	}
+	return nil
+}
+
+func PackEpub(dirPath string) error {
+	savePath := strings.TrimSuffix(dirPath, string(filepath.Separator)) + ".epub"
+	zipFile, err := os.Create(savePath)
+	if err != nil {
+		return err
+	}
+	defer zipFile.Close()
+
+	zipWriter := zip.NewWriter(zipFile)
+	defer zipWriter.Close()
+
+	err = addStringToZip(zipWriter, "mimetype", "application/epub+zip", zip.Store)
+	if err != nil {
+		return err
+	}
+
+	err = addDirContentToZip(zipWriter, dirPath, zip.Deflate)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func addStringToZip(zipWriter *zip.Writer, relPath, content string, method uint16) error {
+	header := &zip.FileHeader{
+		Name:   relPath,
+		Method: method,
+	}
+	writer, err := zipWriter.CreateHeader(header)
+	if err != nil {
+		return err
+	}
+
+	_, err = writer.Write([]byte(content))
+	return err
+}
+
+func addDirContentToZip(zipWriter *zip.Writer, dirPath string, method uint16) error {
+	return filepath.Walk(dirPath, func(filePath string, info os.FileInfo, err error) error {
+		if filepath.Base(filePath) == "volume.json" {
+			return nil
+		}
+		if err != nil {
+			return err
+		}
+		if info.IsDir() {
+			return nil
+		}
+
+		relPath, err := filepath.Rel(dirPath, filePath)
+		if err != nil {
+			return err
+		}
+
+		file, err := os.Open(filePath)
+		if err != nil {
+			return err
+		}
+		defer file.Close()
+
+		header, err := zip.FileInfoHeader(info)
+		if err != nil {
+			return err
+		}
+		header.Name = relPath
+		header.Method = method
+
+		writer, err := zipWriter.CreateHeader(header)
+		if err != nil {
+			return err
+		}
+
+		_, err = io.Copy(writer, file)
+		return err
+	})
+}
diff --git a/go.mod b/go.mod
index aab1726..fd7422f 100644
--- a/go.mod
+++ b/go.mod
@@ -5,6 +5,9 @@ go 1.24.2
 require (
 	github.com/PuerkitoBio/goquery v1.10.3
 	github.com/a-h/templ v0.3.906
+	github.com/bestnite/font-mapper v0.0.0-20250823155658-56c76d820267
+	github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d
+	github.com/chromedp/chromedp v0.14.1
 	github.com/go-resty/resty/v2 v2.16.5
 	github.com/google/uuid v1.6.0
 	github.com/spf13/cobra v1.9.1
@@ -12,7 +15,15 @@ require (
 
 require (
 	github.com/andybalholm/cascadia v1.3.3 // indirect
+	github.com/chromedp/sysutil v1.1.0 // indirect
+	github.com/go-json-experiment/json v0.0.0-20250813233538-9b1f9ea2e11b // indirect
+	github.com/gobwas/httphead v0.1.0 // indirect
+	github.com/gobwas/pool v0.2.1 // indirect
+	github.com/gobwas/ws v1.4.0 // indirect
+	github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.6 // indirect
+	golang.org/x/image v0.30.0 // indirect
 	golang.org/x/net v0.39.0 // indirect
+	golang.org/x/sys v0.35.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 6e98086..c87f77d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,20 +1,40 @@
 github.com/PuerkitoBio/goquery v1.10.3 h1:pFYcNSqHxBD06Fpj/KsbStFRsgRATgnf3LeXiUkhzPo=
 github.com/PuerkitoBio/goquery v1.10.3/go.mod h1:tMUX0zDMHXYlAQk6p35XxQMqMweEKB7iK7iLNd4RH4Y=
-github.com/a-h/templ v0.3.857 h1:6EqcJuGZW4OL+2iZ3MD+NnIcG7nGkaQeF2Zq5kf9ZGg=
-github.com/a-h/templ v0.3.857/go.mod h1:qhrhAkRFubE7khxLZHsBFHfX+gWwVNKbzKeF9GlPV4M=
 github.com/a-h/templ v0.3.906 h1:ZUThc8Q9n04UATaCwaG60pB1AqbulLmYEAMnWV63svg=
 github.com/a-h/templ v0.3.906/go.mod h1:FFAu4dI//ESmEN7PQkJ7E7QfnSEMdcnu7QrAY8Dn334=
 github.com/andybalholm/cascadia v1.3.3 h1:AG2YHrzJIm4BZ19iwJ/DAua6Btl3IwJX+VI4kktS1LM=
 github.com/andybalholm/cascadia v1.3.3/go.mod h1:xNd9bqTn98Ln4DwST8/nG+H0yuB8Hmgu1YHNnWw0GeA=
+github.com/bestnite/font-mapper v0.0.0-20250823155658-56c76d820267 h1:nmUTJV2u/0XmVjQ++VIy/Hu+MtxdpQvOevvcSZtUATA=
+github.com/bestnite/font-mapper v0.0.0-20250823155658-56c76d820267/go.mod h1:cfB1e9YhoI/QWrXPp3h6QVAKU6iCI2ifbjRPHP3xf/0=
+github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d h1:ZtA1sedVbEW7EW80Iz2GR3Ye6PwbJAJXjv7D74xG6HU=
+github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d/go.mod h1:NItd7aLkcfOA/dcMXvl8p1u+lQqioRMq/SqDp71Pb/k=
+github.com/chromedp/chromedp v0.14.1 h1:0uAbnxewy/Q+Bg7oafVePE/6EXEho9hnaC38f+TTENg=
+github.com/chromedp/chromedp v0.14.1/go.mod h1:rHzAv60xDE7VNy/MYtTUrYreSc0ujt2O1/C3bzctYBo=
+github.com/chromedp/sysutil v1.1.0 h1:PUFNv5EcprjqXZD9nJb9b/c9ibAbxiYo4exNWZyipwM=
+github.com/chromedp/sysutil v1.1.0/go.mod h1:WiThHUdltqCNKGc4gaU50XgYjwjYIhKWoHGPTUfWTJ8=
 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/go-json-experiment/json v0.0.0-20250813233538-9b1f9ea2e11b h1:6Q4zRHXS/YLOl9Ng1b1OOOBWMidAQZR3Gel0UKPC/KU=
+github.com/go-json-experiment/json v0.0.0-20250813233538-9b1f9ea2e11b/go.mod h1:TiCD2a1pcmjd7YnhGH0f/zKNcCD06B029pHhzV23c2M=
 github.com/go-resty/resty/v2 v2.16.5 h1:hBKqmWrr7uRc3euHVqmh1HTHcKn99Smr7o5spptdhTM=
 github.com/go-resty/resty/v2 v2.16.5/go.mod h1:hkJtXbA2iKHzJheXYvQ8snQES5ZLGKMwQ07xAwp/fiA=
+github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU=
+github.com/gobwas/httphead v0.1.0/go.mod h1:O/RXo79gxV8G+RqlR/otEwx4Q36zl9rqC5u12GKvMCM=
+github.com/gobwas/pool v0.2.1 h1:xfeeEhW7pwmX8nuLVlqbzVc7udMDrwetjEv+TZIz1og=
+github.com/gobwas/pool v0.2.1/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
+github.com/gobwas/ws v1.4.0 h1:CTaoG1tojrh4ucGPcoJFiAQUAsEWekEWvLy7GsVNqGs=
+github.com/gobwas/ws v1.4.0/go.mod h1:G3gNqMNtPppf5XUz7O4shetPpcZ1VJ7zt18dlUeakrc=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80 h1:6Yzfa6GP0rIo/kULo2bwGEkFvCePZ3qHDDTC3/J9Swo=
+github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80/go.mod h1:imJHygn/1yfhB7XSJJKlFZKl/J+dCPAknuiaGOshXAs=
+github.com/orisano/pixelmatch v0.0.0-20220722002657-fb0b55479cde h1:x0TT0RDC7UhAVbbWWBzr41ElhJx5tXPWkIHA2HWPRuw=
+github.com/orisano/pixelmatch v0.0.0-20220722002657-fb0b55479cde/go.mod h1:nZgzbfBr3hhjoZnS66nKrHmduYNpc34ny7RK4z5/HM0=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
 github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
 github.com/spf13/cobra v1.9.1/go.mod h1:nDyEzZ8ogv936Cinf6g1RU9MRY64Ir93oCnqb9wxYW0=
@@ -27,6 +47,8 @@ golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliY
 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
 golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
 golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/image v0.30.0 h1:jD5RhkmVAnjqaCUXfbGBrn3lpxbknfN9w2UhHHU+5B4=
+golang.org/x/image v0.30.0/go.mod h1:SAEUTxCCMWSrJcCy/4HwavEsfZZJlYxeHLc6tTiAe/c=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
@@ -56,11 +78,14 @@ golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
+golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
diff --git a/model/downloader.go b/model/downloader.go
new file mode 100644
index 0000000..0df4f9b
--- /dev/null
+++ b/model/downloader.go
@@ -0,0 +1,15 @@
+package model
+
+type ExtraFile struct {
+	Data         []byte
+	Path         string
+	ManifestItem ManifestItem
+}
+
+type Downloader interface {
+	GetNovel(novelId int) (*Novel, error)
+	GetVolume(novelId int, volumeId int) (*Volume, error)
+	GetChapter(novelId int, volumeId int, chapterId int) (*Chapter, error)
+	GetStyleCSS() string
+	GetExtraFiles() []ExtraFile
+}
diff --git a/model/container_opf.go b/model/epub.go
similarity index 100%
rename from model/container_opf.go
rename to model/epub.go
diff --git a/model/struct.go b/model/novel.go
similarity index 63%
rename from model/struct.go
rename to model/novel.go
index 11335b1..3208b8c 100644
--- a/model/struct.go
+++ b/model/novel.go
@@ -1,13 +1,17 @@
 package model
 
+type ChaperContent struct {
+	Html   string
+	Images map[string][]byte
+}
+
 type Chapter struct {
-	Title           string
-	Url             string
-	Content         string
-	ImageOEBPSPaths []string
-	ImageFullPaths  []string
-	TextOEBPSPath   string
-	TextFullPath    string
+	Id       int
+	NovelId  int
+	VolumeId int
+	Title    string
+	Url      string
+	Content  *ChaperContent
 }
 
 type Volume struct {
@@ -15,7 +19,8 @@ type Volume struct {
 	SeriesIdx   int
 	Title       string
 	Url         string
-	Cover       string
+	CoverUrl    string
+	Cover       []byte
 	Description string
 	Authors     []string
 	Chapters    []*Chapter
diff --git a/template/container.xml_templ.go b/template/container.xml_templ.go
index 35a864a..3395a41 100644
--- a/template/container.xml_templ.go
+++ b/template/container.xml_templ.go
@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.906
+// templ: version: v0.3.865
 package template
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.
diff --git a/template/content.opf_templ.go b/template/content.opf_templ.go
index 121ed07..f4018f4 100644
--- a/template/content.opf_templ.go
+++ b/template/content.opf_templ.go
@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.906
+// templ: version: v0.3.865
 package template
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.
diff --git a/template/content.xhtml.templ b/template/content.xhtml.templ
index 18b9633..f457f03 100644
--- a/template/content.xhtml.templ
+++ b/template/content.xhtml.templ
@@ -1,21 +1,19 @@
 package template
 
-import "bilinovel-downloader/model"
-
-templ ContentXHTML(content *model.Chapter) {
+templ ContentXHTML(title, content string) {
 	@templ.Raw(`<?xml version='1.0' encoding='utf-8'?>`)
 	// @templ.Raw(`<!DOCTYPE html>`)
 	<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops" xml:lang="zh-CN">
 		<head>
-			<title>{ content.Title }</title>
+			<title>{ title }</title>
 			@templ.Raw(`<link href="../../style.css" rel="stylesheet" type="text/css"/>`)
 		</head>
 		<body>
 			<div class="chapter">
-				<h1>{ content.Title }</h1>
+				<h1>{ title }</h1>
 				@templ.Raw(`<hr/>`)
 				<div class="content">
-					@templ.Raw(content.Content)
+					@templ.Raw(content)
 				</div>
 			</div>
 		</body>
diff --git a/template/content.xhtml_templ.go b/template/content.xhtml_templ.go
index fcac00a..4d9f842 100644
--- a/template/content.xhtml_templ.go
+++ b/template/content.xhtml_templ.go
@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.906
+// templ: version: v0.3.865
 package template
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.
@@ -8,9 +8,7 @@ package template
 import "github.com/a-h/templ"
 import templruntime "github.com/a-h/templ/runtime"
 
-import "bilinovel-downloader/model"
-
-func ContentXHTML(content *model.Chapter) templ.Component {
+func ContentXHTML(title, content string) templ.Component {
 	return templruntime.GeneratedTemplate(func(templ_7745c5c3_Input templruntime.GeneratedComponentInput) (templ_7745c5c3_Err error) {
 		templ_7745c5c3_W, ctx := templ_7745c5c3_Input.Writer, templ_7745c5c3_Input.Context
 		if templ_7745c5c3_CtxErr := ctx.Err(); templ_7745c5c3_CtxErr != nil {
@@ -40,9 +38,9 @@ func ContentXHTML(content *model.Chapter) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var2 string
-		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(content.Title)
+		templ_7745c5c3_Var2, templ_7745c5c3_Err = templ.JoinStringErrs(title)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `template/content.xhtml.templ`, Line: 10, Col: 25}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `template/content.xhtml.templ`, Line: 8, Col: 17}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var2))
 		if templ_7745c5c3_Err != nil {
@@ -61,9 +59,9 @@ func ContentXHTML(content *model.Chapter) templ.Component {
 			return templ_7745c5c3_Err
 		}
 		var templ_7745c5c3_Var3 string
-		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(content.Title)
+		templ_7745c5c3_Var3, templ_7745c5c3_Err = templ.JoinStringErrs(title)
 		if templ_7745c5c3_Err != nil {
-			return templ.Error{Err: templ_7745c5c3_Err, FileName: `template/content.xhtml.templ`, Line: 15, Col: 23}
+			return templ.Error{Err: templ_7745c5c3_Err, FileName: `template/content.xhtml.templ`, Line: 13, Col: 15}
 		}
 		_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var3))
 		if templ_7745c5c3_Err != nil {
@@ -81,7 +79,7 @@ func ContentXHTML(content *model.Chapter) templ.Component {
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
-		templ_7745c5c3_Err = templ.Raw(content.Content).Render(ctx, templ_7745c5c3_Buffer)
+		templ_7745c5c3_Err = templ.Raw(content).Render(ctx, templ_7745c5c3_Buffer)
 		if templ_7745c5c3_Err != nil {
 			return templ_7745c5c3_Err
 		}
diff --git a/template/cover.xhtml_templ.go b/template/cover.xhtml_templ.go
index 3a8f27c..13bfa55 100644
--- a/template/cover.xhtml_templ.go
+++ b/template/cover.xhtml_templ.go
@@ -1,6 +1,6 @@
 // Code generated by templ - DO NOT EDIT.
 
-// templ: version: v0.3.906
+// templ: version: v0.3.865
 package template
 
 //lint:file-ignore SA4006 This context is only used if a nested component is present.
diff --git a/test/bilinovel_test.go b/test/bilinovel_test.go
new file mode 100644
index 0000000..47f0cf0
--- /dev/null
+++ b/test/bilinovel_test.go
@@ -0,0 +1,60 @@
+package test
+
+import (
+	"bilinovel-downloader/downloader/bilinovel"
+	"encoding/json"
+	"fmt"
+	"testing"
+)
+
+func TestBilinovel_GetNovel(t *testing.T) {
+	bilinovel, err := bilinovel.New()
+	bilinovel.SetTextOnly(true)
+	bilinovel.SetDebug(true)
+	if err != nil {
+		t.Fatalf("failed to create bilinovel: %v", err)
+	}
+	novel, err := bilinovel.GetNovel(4519)
+	if err != nil {
+		t.Fatalf("failed to get novel: %v", err)
+	}
+	jsonBytes, err := json.Marshal(novel)
+	if err != nil {
+		t.Fatalf("failed to marshal novel: %v", err)
+	}
+	fmt.Println(string(jsonBytes))
+}
+
+func TestBilinovel_GetVolume(t *testing.T) {
+	bilinovel, err := bilinovel.New()
+	bilinovel.SetTextOnly(true)
+	if err != nil {
+		t.Fatalf("failed to create bilinovel: %v", err)
+	}
+	volume, err := bilinovel.GetVolume(1410, 52748)
+	if err != nil {
+		t.Fatalf("failed to get volume: %v", err)
+	}
+	jsonBytes, err := json.Marshal(volume)
+	if err != nil {
+		t.Fatalf("failed to marshal volume: %v", err)
+	}
+	fmt.Println(string(jsonBytes))
+}
+
+func TestBilinovel_GetChapter(t *testing.T) {
+	bilinovel, err := bilinovel.New()
+	if err != nil {
+		t.Fatalf("failed to create bilinovel: %v", err)
+	}
+	bilinovel.SetDebug(true)
+	chapter, err := bilinovel.GetChapter(1410, 52748, 52752)
+	if err != nil {
+		t.Fatalf("failed to get chapter: %v", err)
+	}
+	jsonBytes, err := json.Marshal(chapter)
+	if err != nil {
+		t.Fatalf("failed to marshal chapter: %v", err)
+	}
+	fmt.Println(string(jsonBytes))
+}
diff --git a/text/wrapper.go b/text/wrapper.go
new file mode 100644
index 0000000..70bbf32
--- /dev/null
+++ b/text/wrapper.go
@@ -0,0 +1,55 @@
+package text
+
+import (
+	"bilinovel-downloader/model"
+	"bilinovel-downloader/utils"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/PuerkitoBio/goquery"
+)
+
+func PackVolumeToText(volume *model.Volume, outputPath string) error {
+	outputPath = filepath.Join(outputPath, utils.CleanDirName(volume.Title))
+	_, err := os.Stat(outputPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			err = os.MkdirAll(outputPath, 0755)
+			if err != nil {
+				return fmt.Errorf("failed to create output directory: %v", err)
+			}
+		} else {
+			return fmt.Errorf("failed to get output directory: %v", err)
+		}
+	} else {
+		err = os.RemoveAll(outputPath)
+		if err != nil {
+			return fmt.Errorf("failed to remove output directory: %v", err)
+		}
+		err = os.MkdirAll(outputPath, 0755)
+		if err != nil {
+			return fmt.Errorf("failed to create output directory: %v", err)
+		}
+	}
+	for i, chapter := range volume.Chapters {
+		chapterPath := filepath.Join(outputPath, fmt.Sprintf("%03d-%s.txt", i, chapter.Title))
+		chapterFile, err := os.Create(chapterPath)
+		if err != nil {
+			return fmt.Errorf("failed to create chapter file: %v", err)
+		}
+		defer chapterFile.Close()
+		doc, err := goquery.NewDocumentFromReader(strings.NewReader(chapter.Content.Html))
+		if err != nil {
+			return fmt.Errorf("failed to create chapter file: %v", err)
+		}
+		doc.Find("img").Remove()
+		text := doc.Text()
+		_, err = chapterFile.WriteString(text)
+		if err != nil {
+			return fmt.Errorf("failed to write chapter file: %v", err)
+		}
+	}
+	return nil
+}
diff --git a/utils/request.go b/utils/request.go
index 69af7ca..25f44c4 100644
--- a/utils/request.go
+++ b/utils/request.go
@@ -9,11 +9,19 @@ import (
 	"github.com/go-resty/resty/v2"
 )
 
-var client *resty.Client
+type RestyClient struct {
+	client      *resty.Client
+	concurrency int
+	sem         chan struct{}
+}
 
-func init() {
-	client = resty.New()
-	client.SetTransport(&http.Transport{
+func NewRestyClient(concurrency int) *RestyClient {
+	client := &RestyClient{
+		client:      resty.New(),
+		concurrency: concurrency,
+		sem:         make(chan struct{}, concurrency),
+	}
+	client.client.SetTransport(&http.Transport{
 		DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
 			if addr == "www.bilinovel.com:443" {
 				addr = "64.140.161.52:443"
@@ -24,7 +32,16 @@ func init() {
 		},
 		TLSHandshakeTimeout: 10 * time.Second,
 	})
-	client.SetRetryCount(10).
+	client.client.
+		OnBeforeRequest(func(c *resty.Client, req *resty.Request) error {
+			client.sem <- struct{}{}
+			return nil
+		}).
+		OnAfterResponse(func(c *resty.Client, resp *resty.Response) error {
+			<-client.sem
+			return nil
+		})
+	client.client.SetRetryCount(10).
 		SetRetryWaitTime(3 * time.Second).
 		SetRetryAfter(func(client *resty.Client, resp *resty.Response) (time.Duration, error) {
 			if resp.StatusCode() == http.StatusTooManyRequests {
@@ -43,10 +60,13 @@ func init() {
 		AddRetryCondition(func(r *resty.Response, err error) bool {
 			return err != nil || r.StatusCode() == http.StatusTooManyRequests
 		})
+
+	client.client.SetLogger(disableLogger{}).SetHeader("Accept-Charset", "utf-8").SetHeader("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0")
+	return client
 }
 
-func Request() *resty.Request {
-	return client.R().SetLogger(disableLogger{}).SetHeader("Accept-Charset", "utf-8").SetHeader("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0")
+func (c *RestyClient) R() *resty.Request {
+	return c.client.R()
 }
 
 type disableLogger struct{}