diff --git a/README.md b/README.md
index 806c6bb..cb76943 100644
--- a/README.md
+++ b/README.md
@@ -1048,6 +1048,7 @@ MediaStationGo 的智能分类分为两个阶段：
 
 自动整理与手动整理是两件事：
 
+- `downloads.smart_classify`：控制订阅下载 / 站点搜索下载是否自动按媒体分类写入下载目录和 qB 分类，默认开启。
 - `organizer.smart_classify`：只控制是否使用智能分类目录。
 - `organizer.auto_after_download` / `organize.auto`：控制下载完成后是否自动整理。
 - 未开启自动整理时，可以在「整理与维护」页面手动整理媒体库或单个媒体。
diff --git a/README_EN.md b/README_EN.md
index 90e7877..87bb379 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -861,6 +861,7 @@ If the library root is set directly to `/media`, the organizer automatically add
 
 Automatic and manual organization are separate switches:
 
+- `downloads.smart_classify`: controls whether subscription/site-search downloads are automatically routed into category-specific save paths and qB categories; enabled by default.
 - `organizer.smart_classify`: controls smart category folders only.
 - `organizer.auto_after_download` / `organize.auto`: controls whether completed downloads are organized automatically.
 - If auto organization is disabled, use the Tools page to organize a library or a single media item manually.
diff --git a/internal/config/config.go b/internal/config/config.go
index fa3c29e..faa05d2 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -247,6 +247,7 @@ func setDefaults(v *viper.Viper) {
 	v.SetDefault("flaresolverr.session", "mediastation")
 	v.SetDefault("flaresolverr.timeout", 60)
 
+	v.SetDefault("downloads.smart_classify", true)
 	v.SetDefault("organizer.smart_classify", false)
 	v.SetDefault("organizer.auto_after_download", false)
 	v.SetDefault("organizer.categories.chinese_movie", "华语电影")
diff --git a/internal/handler/downloads.go b/internal/handler/downloads.go
index 7301a0e..b5e9a81 100644
--- a/internal/handler/downloads.go
+++ b/internal/handler/downloads.go
@@ -17,12 +17,15 @@ import (
 )
 
 type addDownloadReq struct {
-	URL         string `json:"url" binding:"required"`
-	SavePath    string `json:"save_path"`
-	Title       string `json:"title"`
-	PosterURL   string `json:"poster_url"`
-	BackdropURL string `json:"backdrop_url"`
-	Overview    string `json:"overview"`
+	URL            string `json:"url" binding:"required"`
+	SavePath       string `json:"save_path"`
+	Title          string `json:"title"`
+	PosterURL      string `json:"poster_url"`
+	BackdropURL    string `json:"backdrop_url"`
+	Overview       string `json:"overview"`
+	MediaType      string `json:"media_type"`
+	MediaCategory  string `json:"media_category"`
+	SourceCategory string `json:"source_category"`
 }
 
 // resolvePTDownloadURL 把站点搜索结果里的"详情/获取签名"URL 解析成 qb 能直接
@@ -67,11 +70,14 @@ func addDownloadHandler(svc *service.Container) gin.HandlerFunc {
 			fallbackTitle = realURL
 		}
 		meta := enrichDownloadTaskMeta(c.Request.Context(), svc, service.DownloadTaskMeta{
-			Title:       req.Title,
-			PosterURL:   req.PosterURL,
-			BackdropURL: req.BackdropURL,
-			Overview:    req.Overview,
-		}, fallbackTitle, "")
+			Title:          req.Title,
+			PosterURL:      req.PosterURL,
+			BackdropURL:    req.BackdropURL,
+			Overview:       req.Overview,
+			MediaType:      req.MediaType,
+			MediaCategory:  req.MediaCategory,
+			SourceCategory: req.SourceCategory,
+		}, fallbackTitle, req.MediaType)
 		t, err := svc.Downloads.AddDownloadWithMeta(c.Request.Context(), uid.(string), realURL, req.SavePath, meta)
 		if err != nil {
 			if errors.Is(err, service.ErrMediaAlreadyInLibrary) {
diff --git a/internal/handler/system_extra.go b/internal/handler/system_extra.go
index 4cb9067..fcb723a 100644
--- a/internal/handler/system_extra.go
+++ b/internal/handler/system_extra.go
@@ -79,6 +79,7 @@ func schemaHandler(_ *service.Container) gin.HandlerFunc {
 					"label": "整理 & 刮削",
 					"items": []gin.H{
 						{"key": "organizer.auto_after_download", "type": "toggle"},
+						{"key": "downloads.smart_classify", "type": "toggle"},
 						{"key": "organizer.smart_classify", "type": "toggle"},
 						{"key": "organize.movie_format", "type": "text"},
 						{"key": "organize.tv_format", "type": "text"},
diff --git a/internal/service/aria2_adp.go b/internal/service/aria2_adp.go
index 40ca3b1..15708bf 100644
--- a/internal/service/aria2_adp.go
+++ b/internal/service/aria2_adp.go
@@ -49,7 +49,7 @@ type Aria2Adapter struct {
 // NewAria2Adapter 创建新的 Aria2 适配器。
 func NewAria2Adapter() *Aria2Adapter {
 	return &Aria2Adapter{
-		client: &http.Client{Timeout: 20 * time.Second},
+		client: NewInternalHTTPClient(20 * time.Second),
 	}
 }
 
diff --git a/internal/service/download_clients.go b/internal/service/download_clients.go
index 1cd7736..2971bb9 100644
--- a/internal/service/download_clients.go
+++ b/internal/service/download_clients.go
@@ -31,7 +31,7 @@ func NewDownloadClientService(log *zap.Logger, repo *repository.Container) *Down
 	return &DownloadClientService{
 		log:    log,
 		repo:   repo,
-		client: &http.Client{Timeout: 10 * time.Second},
+		client: NewInternalHTTPClient(10 * time.Second),
 	}
 }
 
diff --git a/internal/service/downloads.go b/internal/service/downloads.go
index bc6ddec..1c66561 100644
--- a/internal/service/downloads.go
+++ b/internal/service/downloads.go
@@ -74,6 +74,9 @@ type DownloadTaskMeta struct {
 	PosterURL            string
 	BackdropURL          string
 	Overview             string
+	MediaType            string
+	MediaCategory        string
+	SourceCategory       string
 	AllowExistingLibrary bool
 }
 
@@ -205,14 +208,18 @@ func (d *DownloadService) AddDownloadWithMeta(ctx context.Context, userID, urlSt
 	if urlStr == "" {
 		return nil, errors.New("empty url")
 	}
-	if savePath == "" {
-		savePath, _ = d.repo.Setting.Get(ctx, "qbittorrent.savepath")
-	}
 	title := strings.TrimSpace(meta.Title)
 	if title == "" {
 		title = publicDownloadTitle(urlStr)
 		meta.Title = title
 	}
+	autoClassify := downloadSmartClassifyEnabled(ctx, d.repo, d.organizer)
+	savePath, resolvedCategory := d.resolveDownloadSavePath(ctx, savePath, meta, autoClassify)
+	if !autoClassify {
+		meta.MediaCategory = ""
+	} else if strings.TrimSpace(meta.MediaCategory) == "" {
+		meta.MediaCategory = resolvedCategory
+	}
 	if !meta.AllowExistingLibrary && d.localMediaAlreadyExists(ctx, title) {
 		return nil, ErrMediaAlreadyInLibrary
 	}
@@ -231,9 +238,10 @@ func (d *DownloadService) AddDownloadWithMeta(ctx context.Context, userID, urlSt
 		return task, ErrDownloadAlreadyExists
 	}
 	var siteFetchErr error
+	qbitCategory := strings.TrimSpace(meta.MediaCategory)
 	if d.site != nil {
 		if data, name, err := d.site.FetchTorrentFile(ctx, urlStr); err == nil {
-			if err := d.qb.AddTorrentFile(ctx, data, name, savePath); err != nil {
+			if err := d.qb.AddTorrentFileWithCategory(ctx, data, name, savePath, qbitCategory); err != nil {
 				return nil, err
 			}
 			if strings.TrimSpace(meta.Title) == "" {
@@ -244,7 +252,7 @@ func (d *DownloadService) AddDownloadWithMeta(ctx context.Context, userID, urlSt
 			siteFetchErr = err
 		}
 	}
-	if err := d.qb.AddTorrent(ctx, urlStr, savePath); err != nil {
+	if err := d.qb.AddTorrentWithCategory(ctx, urlStr, savePath, qbitCategory); err != nil {
 		if siteFetchErr != nil && !strings.Contains(siteFetchErr.Error(), "no matching PT site") {
 			return nil, errors.Join(err, siteFetchErr)
 		}
@@ -253,6 +261,32 @@ func (d *DownloadService) AddDownloadWithMeta(ctx context.Context, userID, urlSt
 	return d.createTask(ctx, userID, urlStr, savePath, meta)
 }
 
+func (d *DownloadService) resolveDownloadSavePath(ctx context.Context, explicitSavePath string, meta DownloadTaskMeta, autoClassify bool) (string, string) {
+	if strings.TrimSpace(explicitSavePath) != "" {
+		if !autoClassify {
+			return explicitSavePath, ""
+		}
+		return explicitSavePath, strings.TrimSpace(meta.MediaCategory)
+	}
+	base := downloadDefaultSaveRoot(ctx, d.repo)
+	if strings.TrimSpace(base) == "" {
+		return "", strings.TrimSpace(meta.MediaCategory)
+	}
+	mediaType := normalizeMediaType(meta.MediaType, meta.Title, meta.SourceCategory)
+	category := strings.TrimSpace(meta.MediaCategory)
+	if category == "" {
+		category = classifyMediaCategory(mediaClassifyInput{
+			MediaType: mediaType,
+			Title:     meta.Title,
+			Category:  meta.SourceCategory,
+		}, downloadCategoryMap(d.organizer))
+	}
+	if !autoClassify || category == "" {
+		return base, ""
+	}
+	return categoryRoot(base, sanitizeFilename(category)), category
+}
+
 func (d *DownloadService) localMediaAlreadyExists(ctx context.Context, title string) bool {
 	if d == nil || d.repo == nil || d.repo.DB == nil {
 		return false
diff --git a/internal/service/downloads_test.go b/internal/service/downloads_test.go
index 96a915e..fbc28d1 100644
--- a/internal/service/downloads_test.go
+++ b/internal/service/downloads_test.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"net/http"
 	"net/http/httptest"
+	"path/filepath"
 	"strings"
 	"sync/atomic"
 	"testing"
@@ -378,6 +379,132 @@ func TestReloadConfigDoesNotFallbackToLegacyAfterClientDeleted(t *testing.T) {
 	}
 }
 
+func TestAddDownloadWithMetaAutoClassifiesSavePathAndQBitCategory(t *testing.T) {
+	var addCalls int32
+	var gotSavePath string
+	var gotCategory string
+	qb := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/api/v2/auth/login":
+			_, _ = w.Write([]byte("Ok."))
+		case "/api/v2/torrents/info":
+			if atomic.LoadInt32(&addCalls) > 0 {
+				_, _ = w.Write([]byte(`[{"hash":"auto123","name":"声生不息 S01E01","state":"downloading","progress":0.1}]`))
+				return
+			}
+			_, _ = w.Write([]byte(`[]`))
+		case "/api/v2/torrents/add":
+			atomic.AddInt32(&addCalls, 1)
+			if err := r.ParseMultipartForm(1024 * 1024); err != nil {
+				http.Error(w, err.Error(), http.StatusBadRequest)
+				return
+			}
+			gotSavePath = r.FormValue("savepath")
+			gotCategory = r.FormValue("category")
+			_, _ = w.Write([]byte("Ok."))
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer qb.Close()
+
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(&model.DownloadClient{}, &model.DownloadTask{}, &model.Setting{}); err != nil {
+		t.Fatal(err)
+	}
+	repos := repository.New(db)
+	configureTestDefaultQB(t, repos, qb.URL)
+	if err := repos.Setting.Set(t.Context(), "qbittorrent.savepath", "/downloads"); err != nil {
+		t.Fatal(err)
+	}
+
+	svc := NewDownloadService(zap.NewNop(), repos, NewHub(zap.NewNop()), nil)
+	task, err := svc.AddDownloadWithMeta(t.Context(), "u1", "magnet:?xt=urn:btih:eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee&dn=%E5%A3%B0%E7%94%9F%E4%B8%8D%E6%81%AF+S01E01", "", DownloadTaskMeta{
+		Title:          "声生不息 S01E01",
+		SourceCategory: "综艺",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	wantPath := filepath.Join("/downloads", "综艺")
+	if task.SavePath != wantPath {
+		t.Fatalf("task save path = %q, want %q", task.SavePath, wantPath)
+	}
+	if gotSavePath != wantPath {
+		t.Fatalf("qb savepath = %q, want %q", gotSavePath, wantPath)
+	}
+	if gotCategory != "综艺" {
+		t.Fatalf("qb category = %q, want 综艺", gotCategory)
+	}
+}
+
+func TestAddDownloadWithMetaCanDisableAutoClassifiedSavePath(t *testing.T) {
+	var addCalls int32
+	var gotSavePath string
+	var gotCategory string
+	qb := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		switch r.URL.Path {
+		case "/api/v2/auth/login":
+			_, _ = w.Write([]byte("Ok."))
+		case "/api/v2/torrents/info":
+			if atomic.LoadInt32(&addCalls) > 0 {
+				_, _ = w.Write([]byte(`[{"hash":"auto456","name":"声生不息 S01E01","state":"downloading","progress":0.1}]`))
+				return
+			}
+			_, _ = w.Write([]byte(`[]`))
+		case "/api/v2/torrents/add":
+			atomic.AddInt32(&addCalls, 1)
+			if err := r.ParseMultipartForm(1024 * 1024); err != nil {
+				http.Error(w, err.Error(), http.StatusBadRequest)
+				return
+			}
+			gotSavePath = r.FormValue("savepath")
+			gotCategory = r.FormValue("category")
+			_, _ = w.Write([]byte("Ok."))
+		default:
+			http.NotFound(w, r)
+		}
+	}))
+	defer qb.Close()
+
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(&model.DownloadClient{}, &model.DownloadTask{}, &model.Setting{}); err != nil {
+		t.Fatal(err)
+	}
+	repos := repository.New(db)
+	configureTestDefaultQB(t, repos, qb.URL)
+	if err := repos.Setting.Set(t.Context(), "qbittorrent.savepath", "/downloads"); err != nil {
+		t.Fatal(err)
+	}
+	if err := repos.Setting.Set(t.Context(), DownloadSmartClassifySettingKey, "false"); err != nil {
+		t.Fatal(err)
+	}
+
+	svc := NewDownloadService(zap.NewNop(), repos, NewHub(zap.NewNop()), nil)
+	task, err := svc.AddDownloadWithMeta(t.Context(), "u1", "magnet:?xt=urn:btih:ffffffffffffffffffffffffffffffffffffffff&dn=%E5%A3%B0%E7%94%9F%E4%B8%8D%E6%81%AF+S01E01", "", DownloadTaskMeta{
+		Title:          "声生不息 S01E01",
+		SourceCategory: "综艺",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if task.SavePath != "/downloads" {
+		t.Fatalf("task save path = %q, want /downloads", task.SavePath)
+	}
+	if gotSavePath != "/downloads" {
+		t.Fatalf("qb savepath = %q, want /downloads", gotSavePath)
+	}
+	if gotCategory != "" {
+		t.Fatalf("qb category = %q, want empty", gotCategory)
+	}
+}
+
 func TestReloadConfigDoesNotFallbackToLegacyAfterClientDisabled(t *testing.T) {
 	var addCalls int32
 	qb := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
diff --git a/internal/service/media_classifier.go b/internal/service/media_classifier.go
index 4cf5783..3e54269 100644
--- a/internal/service/media_classifier.go
+++ b/internal/service/media_classifier.go
@@ -2,11 +2,12 @@ package service
 
 import (
 	"context"
-	"path/filepath"
+	"os"
 	"regexp"
 	"strings"
 
 	"github.com/ShukeBta/MediaStationGo/internal/model"
+	"github.com/ShukeBta/MediaStationGo/internal/repository"
 )
 
 var (
@@ -14,6 +15,8 @@ var (
 	classifierSeasonRE  = regexp.MustCompile(`(?i)\bS\d{1,2}\b|第\s*\d+\s*季`)
 )
 
+const DownloadSmartClassifySettingKey = "downloads.smart_classify"
+
 type mediaClassifyInput struct {
 	MediaType string
 	Title     string
@@ -210,8 +213,8 @@ func (s *SubscriptionService) resolveSubscriptionSavePath(ctx context.Context, s
 		return ""
 	}
 	base := strings.TrimSpace(sub.SavePath)
-	if base == "" && s.repo != nil && s.repo.Setting != nil {
-		base, _ = s.repo.Setting.Get(ctx, "qbittorrent.savepath")
+	if base == "" {
+		base = downloadDefaultSaveRoot(ctx, s.repo)
 	}
 	if base == "" {
 		return ""
@@ -219,15 +222,60 @@ func (s *SubscriptionService) resolveSubscriptionSavePath(ctx context.Context, s
 	if !s.isSmartClassifyEnabled(ctx) || category == "" {
 		return base
 	}
-	return filepath.Join(base, sanitizeFilename(category))
+	return categoryRoot(base, sanitizeFilename(category))
 }
 
 func (s *SubscriptionService) isSmartClassifyEnabled(ctx context.Context) bool {
 	if s != nil && s.repo != nil && s.repo.Setting != nil {
-		val, err := s.repo.Setting.Get(ctx, "organizer.smart_classify")
+		val, err := s.repo.Setting.Get(ctx, DownloadSmartClassifySettingKey)
 		if err == nil && val != "" {
-			return val == "true" || val == "1" || val == "on"
+			return parseBoolSetting(val, true)
+		}
+		val, err = s.repo.Setting.Get(ctx, "organizer.smart_classify")
+		if err == nil && parseBoolSetting(val, false) {
+			return true
 		}
 	}
-	return s != nil && s.cfg != nil && s.cfg.Organizer.SmartClassify
+	if s != nil && s.cfg != nil && s.cfg.Organizer.SmartClassify {
+		return true
+	}
+	return true
+}
+
+func downloadDefaultSaveRoot(ctx context.Context, repo *repository.Container) string {
+	if repo != nil && repo.Setting != nil {
+		if base, _ := repo.Setting.Get(ctx, "qbittorrent.savepath"); strings.TrimSpace(base) != "" {
+			return strings.TrimSpace(base)
+		}
+	}
+	for _, key := range []string{"MEDIASTATION_DOWNLOAD_CONTAINER_DIR", "MEDIASTATION_DOWNLOAD_DIR"} {
+		if value := strings.TrimSpace(os.Getenv(key)); value != "" {
+			return value
+		}
+	}
+	return ""
+}
+
+func downloadSmartClassifyEnabled(ctx context.Context, repo *repository.Container, organizer *OrganizerService) bool {
+	if repo != nil && repo.Setting != nil {
+		val, err := repo.Setting.Get(ctx, DownloadSmartClassifySettingKey)
+		if err == nil && val != "" {
+			return parseBoolSetting(val, true)
+		}
+		val, err = repo.Setting.Get(ctx, "organizer.smart_classify")
+		if err == nil && parseBoolSetting(val, false) {
+			return true
+		}
+	}
+	if organizer != nil && organizer.cfg != nil && organizer.cfg.Organizer.SmartClassify {
+		return true
+	}
+	return true
+}
+
+func downloadCategoryMap(organizer *OrganizerService) map[string]string {
+	if organizer == nil {
+		return nil
+	}
+	return organizer.categoryMap()
 }
diff --git a/internal/service/proxy.go b/internal/service/proxy.go
index 4eeed5a..4410b56 100644
--- a/internal/service/proxy.go
+++ b/internal/service/proxy.go
@@ -26,6 +26,17 @@ func NewExternalHTTPClient(timeout time.Duration) *http.Client {
 	}
 }
 
+// NewInternalHTTPClient builds an HTTP client for LAN / Docker-internal
+// services such as qBittorrent, Transmission and Aria2. These endpoints are
+// usually 127.0.0.1, host.docker.internal, 172.17.0.1 or a NAS LAN IP; sending
+// them through HTTP_PROXY/SOCKS proxies makes local WebUI logins hang or fail.
+func NewInternalHTTPClient(timeout time.Duration) *http.Client {
+	return &http.Client{
+		Timeout:   timeout,
+		Transport: NewInternalTransport(),
+	}
+}
+
 func NewExternalTransport() *http.Transport {
 	return &http.Transport{
 		Proxy:                 ProxyFromEnvironmentOrSystem,
@@ -37,6 +48,12 @@ func NewExternalTransport() *http.Transport {
 	}
 }
 
+func NewInternalTransport() *http.Transport {
+	transport := http.DefaultTransport.(*http.Transport).Clone()
+	transport.Proxy = nil
+	return transport
+}
+
 func proxyURLFromProxyServer(proxyServer, requestScheme string) (*url.URL, error) {
 	proxyServer = strings.TrimSpace(proxyServer)
 	if proxyServer == "" {
diff --git a/internal/service/proxy_test.go b/internal/service/proxy_test.go
index 720660a..c4ff89f 100644
--- a/internal/service/proxy_test.go
+++ b/internal/service/proxy_test.go
@@ -1,6 +1,10 @@
 package service
 
-import "testing"
+import (
+	"net/http"
+	"testing"
+	"time"
+)
 
 func TestProxyURLFromProxyServer(t *testing.T) {
 	cases := []struct {
@@ -27,3 +31,26 @@ func TestProxyURLFromProxyServer(t *testing.T) {
 		})
 	}
 }
+
+func TestNewInternalHTTPClientBypassesProxyEnvironment(t *testing.T) {
+	t.Setenv("HTTP_PROXY", "http://127.0.0.1:9")
+	t.Setenv("HTTPS_PROXY", "http://127.0.0.1:9")
+
+	client := NewInternalHTTPClient(time.Second)
+	req, err := http.NewRequest(http.MethodGet, "http://172.17.0.1:8085", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	transport, ok := client.Transport.(*http.Transport)
+	if !ok {
+		t.Fatalf("unexpected transport type %T", client.Transport)
+	}
+	if transport.Proxy == nil {
+		return
+	}
+	if proxyURL, err := transport.Proxy(req); err != nil {
+		t.Fatal(err)
+	} else if proxyURL != nil {
+		t.Fatalf("internal downloader client must bypass proxy, got %s", proxyURL)
+	}
+}
diff --git a/internal/service/qbittorrent.go b/internal/service/qbittorrent.go
index f553140..ca2f5f7 100644
--- a/internal/service/qbittorrent.go
+++ b/internal/service/qbittorrent.go
@@ -75,10 +75,12 @@ var (
 func NewQBitClient(log *zap.Logger, cfg QBitConfig) *QBitClient {
 	cfg.BaseURL = strings.TrimRight(strings.TrimSpace(cfg.BaseURL), "/")
 	jar, _ := cookiejar.New(nil)
+	client := NewInternalHTTPClient(20 * time.Second)
+	client.Jar = jar
 	return &QBitClient{
 		log:    log,
 		cfg:    cfg,
-		client: &http.Client{Jar: jar, Timeout: 20 * time.Second},
+		client: client,
 	}
 }
 
@@ -112,6 +114,10 @@ func (q *QBitClient) Login(ctx context.Context) error {
 // 但 body 里写 "Fails."。我们把这些情况也识别为错误并返回，避免
 // "API 返回 200 → 我们告诉前端成功 → qb 中却没下载" 这种迷惑性失败。
 func (q *QBitClient) AddTorrent(ctx context.Context, magnetOrURL, savePath string) error {
+	return q.AddTorrentWithCategory(ctx, magnetOrURL, savePath, "")
+}
+
+func (q *QBitClient) AddTorrentWithCategory(ctx context.Context, magnetOrURL, savePath, category string) error {
 	q.mu.Lock()
 	defer q.mu.Unlock()
 	if err := q.ensureAuth(ctx); err != nil {
@@ -120,10 +126,14 @@ func (q *QBitClient) AddTorrent(ctx context.Context, magnetOrURL, savePath strin
 
 	torrentData, torrentName, fetchErr := q.fetchTorrentFile(ctx, magnetOrURL)
 	useFileUpload := fetchErr == nil && len(torrentData) > 0
-	return q.addTorrentLocked(ctx, magnetOrURL, torrentData, torrentName, useFileUpload, savePath)
+	return q.addTorrentLocked(ctx, magnetOrURL, torrentData, torrentName, useFileUpload, savePath, category)
 }
 
 func (q *QBitClient) AddTorrentFile(ctx context.Context, data []byte, name, savePath string) error {
+	return q.AddTorrentFileWithCategory(ctx, data, name, savePath, "")
+}
+
+func (q *QBitClient) AddTorrentFileWithCategory(ctx context.Context, data []byte, name, savePath, category string) error {
 	if len(data) == 0 {
 		return errors.New("empty torrent data")
 	}
@@ -132,10 +142,10 @@ func (q *QBitClient) AddTorrentFile(ctx context.Context, data []byte, name, save
 	if err := q.ensureAuth(ctx); err != nil {
 		return err
 	}
-	return q.addTorrentLocked(ctx, "", data, name, true, savePath)
+	return q.addTorrentLocked(ctx, "", data, name, true, savePath, category)
 }
 
-func (q *QBitClient) addTorrentLocked(ctx context.Context, magnetOrURL string, torrentData []byte, torrentName string, useFileUpload bool, savePath string) error {
+func (q *QBitClient) addTorrentLocked(ctx context.Context, magnetOrURL string, torrentData []byte, torrentName string, useFileUpload bool, savePath, category string) error {
 	before, beforeErr := q.listLocked(ctx, "")
 	beforeHashes := make(map[string]struct{}, len(before))
 	if beforeErr == nil {
@@ -173,6 +183,9 @@ func (q *QBitClient) addTorrentLocked(ctx context.Context, magnetOrURL string, t
 	if savePath != "" {
 		_ = w.WriteField("savepath", savePath)
 	}
+	if strings.TrimSpace(category) != "" {
+		_ = w.WriteField("category", sanitizeQBitCategory(category))
+	}
 	_ = w.Close()
 
 	req, err := http.NewRequestWithContext(ctx, http.MethodPost,
@@ -234,11 +247,16 @@ func (q *QBitClient) addTorrentLocked(ctx context.Context, magnetOrURL string, t
 	q.log.Info("qbittorrent: torrent added",
 		zap.String("url", redactTorrentURL(magnetOrURL)),
 		zap.String("save_path", savePath),
+		zap.String("category", sanitizeQBitCategory(category)),
 		zap.Bool("file_upload", useFileUpload),
 		zap.String("body", bodyText))
 	return nil
 }
 
+func sanitizeQBitCategory(category string) string {
+	return strings.TrimSpace(strings.ReplaceAll(strings.ReplaceAll(category, "\r", " "), "\n", " "))
+}
+
 func redactTorrentURL(raw string) string {
 	raw = strings.TrimSpace(raw)
 	if raw == "" {
diff --git a/internal/service/qbittorrent_adp.go b/internal/service/qbittorrent_adp.go
index 49d18e3..e108c33 100644
--- a/internal/service/qbittorrent_adp.go
+++ b/internal/service/qbittorrent_adp.go
@@ -31,8 +31,10 @@ type QBitAdapter struct {
 // NewQBitAdapter 创建新的 qBittorrent 适配器。
 func NewQBitAdapter() *QBitAdapter {
 	jar, _ := cookiejar.New(nil)
+	client := NewInternalHTTPClient(20 * time.Second)
+	client.Jar = jar
 	return &QBitAdapter{
-		client: &http.Client{Jar: jar, Timeout: 20 * time.Second},
+		client: client,
 	}
 }
 
diff --git a/internal/service/qbittorrent_login.go b/internal/service/qbittorrent_login.go
index 24f6482..8269dcc 100644
--- a/internal/service/qbittorrent_login.go
+++ b/internal/service/qbittorrent_login.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"net"
 	"net/http"
 	"net/url"
 	"strings"
@@ -60,7 +61,7 @@ func qbitLoginOnce(ctx context.Context, client *http.Client, baseURL, username,
 
 	resp, err := client.Do(req)
 	if err != nil {
-		return err
+		return qbitNetworkError(baseURL, err)
 	}
 	defer resp.Body.Close()
 	raw, _ := io.ReadAll(io.LimitReader(resp.Body, 1024))
@@ -78,3 +79,14 @@ func qbitLoginOnce(ctx context.Context, client *http.Client, baseURL, username,
 		return fmt.Errorf("qbittorrent login unexpected response during %s login: status=%d body=%q", variant.name, resp.StatusCode, text)
 	}
 }
+
+func qbitNetworkError(baseURL string, err error) error {
+	if err == nil {
+		return nil
+	}
+	var netErr net.Error
+	if errors.Is(err, context.DeadlineExceeded) || (errors.As(err, &netErr) && netErr.Timeout()) || strings.Contains(err.Error(), "Client.Timeout exceeded") {
+		return fmt.Errorf("qbittorrent: 连接 %s 超时；容器内无法访问该地址。若 qBittorrent 运行在 NAS 宿主机上，请把下载器地址改为 http://host.docker.internal:端口 或 http://172.17.0.1:端口，并确认 docker-compose.yml 包含 extra_hosts: host.docker.internal:host-gateway: %w", baseURL, err)
+	}
+	return fmt.Errorf("qbittorrent: 连接 %s 失败：%w", baseURL, err)
+}
diff --git a/internal/service/qbittorrent_test.go b/internal/service/qbittorrent_test.go
index c2ab2db..f7794cd 100644
--- a/internal/service/qbittorrent_test.go
+++ b/internal/service/qbittorrent_test.go
@@ -15,6 +15,12 @@ import (
 	"go.uber.org/zap"
 )
 
+type roundTripFunc func(*http.Request) (*http.Response, error)
+
+func (f roundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
+	return f(req)
+}
+
 func TestQBitLoginUsesMinimalRequestFirst(t *testing.T) {
 	var loginAttempts atomic.Int32
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -46,6 +52,25 @@ func TestQBitLoginUsesMinimalRequestFirst(t *testing.T) {
 	}
 }
 
+func TestQBitLoginTimeoutSuggestsDockerHostAddress(t *testing.T) {
+	client := &http.Client{
+		Transport: roundTripFunc(func(*http.Request) (*http.Response, error) {
+			return nil, context.DeadlineExceeded
+		}),
+	}
+
+	err := qbitLogin(context.Background(), client, "http://192.168.1.125:8085", "admin", "adminadmin")
+	if err == nil {
+		t.Fatal("expected timeout error")
+	}
+	msg := err.Error()
+	for _, want := range []string{"连接 http://192.168.1.125:8085 超时", "host.docker.internal", "172.17.0.1"} {
+		if !strings.Contains(msg, want) {
+			t.Fatalf("timeout hint %q missing %q", msg, want)
+		}
+	}
+}
+
 func TestQBitLoginRetriesWithRefererWhenRequired(t *testing.T) {
 	var loginAttempts atomic.Int32
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
diff --git a/internal/service/subscription.go b/internal/service/subscription.go
index 6172fb4..38c1db3 100644
--- a/internal/service/subscription.go
+++ b/internal/service/subscription.go
@@ -235,6 +235,8 @@ func (s *SubscriptionService) runOne(ctx context.Context, sub *model.Subscriptio
 			PosterURL:            sub.PosterURL,
 			BackdropURL:          sub.BackdropURL,
 			Overview:             sub.Overview,
+			MediaType:            mediaType,
+			MediaCategory:        mediaCategory,
 			AllowExistingLibrary: sub.WashEnabled,
 		}); err != nil {
 			if IsDownloadDedupError(err) {
@@ -333,6 +335,9 @@ func (s *SubscriptionService) runSiteSearch(ctx context.Context, sub *model.Subs
 			PosterURL:            sub.PosterURL,
 			BackdropURL:          sub.BackdropURL,
 			Overview:             sub.Overview,
+			MediaType:            mediaType,
+			MediaCategory:        mediaCategory,
+			SourceCategory:       item.Category,
 			AllowExistingLibrary: sub.WashEnabled,
 		}); err != nil {
 			if IsDownloadDedupError(err) {
diff --git a/internal/service/transmission_adp.go b/internal/service/transmission_adp.go
index 22640c3..82a3208 100644
--- a/internal/service/transmission_adp.go
+++ b/internal/service/transmission_adp.go
@@ -33,17 +33,17 @@ type transmissionRPCResponse struct {
 
 // TransmissionAdapter 是 Transmission 的 DownloadAdapter 实现。
 type TransmissionAdapter struct {
-	mu       sync.Mutex
-	cfg      DownloadClientConfig
-	client   *http.Client
-	tag      int
+	mu        sync.Mutex
+	cfg       DownloadClientConfig
+	client    *http.Client
+	tag       int
 	sessionID string
 }
 
 // NewTransmissionAdapter 创建新的 Transmission 适配器。
 func NewTransmissionAdapter() *TransmissionAdapter {
 	return &TransmissionAdapter{
-		client: &http.Client{Timeout: 20 * time.Second},
+		client: NewInternalHTTPClient(20 * time.Second),
 	}
 }
 
@@ -208,7 +208,7 @@ func (a *TransmissionAdapter) Remove(ctx context.Context, hash string, deleteFil
 	a.mu.Lock()
 	defer a.mu.Unlock()
 	_, err := a.rpcLocked(ctx, "torrent-remove", map[string]interface{}{
-		"ids":             []string{hash},
+		"ids":               []string{hash},
 		"delete-local-data": deleteFiles,
 	})
 	return err
diff --git a/web/src/api/downloads.ts b/web/src/api/downloads.ts
index 19c38e0..dea11b2 100644
--- a/web/src/api/downloads.ts
+++ b/web/src/api/downloads.ts
@@ -13,6 +13,9 @@ export interface AddDownloadInput {
   poster_url?: string
   backdrop_url?: string
   overview?: string
+  media_type?: string
+  media_category?: string
+  source_category?: string
 }
 
 export const downloadsAPI = {
diff --git a/web/src/api/sites.ts b/web/src/api/sites.ts
index 585b151..5a142c9 100644
--- a/web/src/api/sites.ts
+++ b/web/src/api/sites.ts
@@ -10,6 +10,7 @@ export interface SiteSearchResult {
   title: string
   torrent_url: string
   download_url: string
+  category?: string
   size: number
   seeders: number
   leechers: number
diff --git a/web/src/pages/SettingsPage.tsx b/web/src/pages/SettingsPage.tsx
index 841daf9..c9ab5f0 100644
--- a/web/src/pages/SettingsPage.tsx
+++ b/web/src/pages/SettingsPage.tsx
@@ -152,11 +152,18 @@ const GROUPS: SettingGroup[] = [
         label: '入库时自动整理',
         type: 'toggle',
       },
+      {
+        key: 'downloads.smart_classify',
+        label: '下载器智能分类',
+        type: 'toggle',
+        hint: '订阅下载和站点搜索下载未指定保存路径时，自动按媒体类型/分类写入 qB 保存目录与 qB 分类（如：/downloads/国产剧、/downloads/综艺）。',
+        defaultValue: 'true',
+      },
       {
         key: 'organizer.smart_classify',
         label: '启用智能分类',
         type: 'toggle',
-        hint: '根据元数据（语言/国家/类型）自动分类到子目录（如：华语电影、欧美剧、日番）',
+        hint: '整理/入库时根据元数据（语言/国家/类型）自动分类到媒体库子目录（如：华语电影、欧美剧、日番）',
       },
       {
         key: 'organize.source_dir',
diff --git a/web/src/pages/SiteSearchPage.tsx b/web/src/pages/SiteSearchPage.tsx
index c0925bf..836517b 100644
--- a/web/src/pages/SiteSearchPage.tsx
+++ b/web/src/pages/SiteSearchPage.tsx
@@ -53,7 +53,10 @@ export function SiteSearchPage() {
       return
     }
     try {
-      await downloadsAPI.add(url, '', { title: item.title })
+      await downloadsAPI.add(url, '', {
+        title: item.title,
+        source_category: item.category,
+      })
       toast.success(`已加入下载: ${item.title.substring(0, 40)}...`)
     } catch (err: unknown) {
       const msg =
diff --git a/web/src/pages/ToolsPage.tsx b/web/src/pages/ToolsPage.tsx
index 09b42ed..31c0396 100644
--- a/web/src/pages/ToolsPage.tsx
+++ b/web/src/pages/ToolsPage.tsx
@@ -71,6 +71,7 @@ function OrganizePanel() {
   const [savingDefaults, setSavingDefaults] = useState(false)
   const ORGANIZE_KEYS = [
     'organizer.auto_after_download',
+    'downloads.smart_classify',
     'organizer.smart_classify',
     'organize.source_dir',
     'organize.target_dir',
@@ -332,6 +333,14 @@ function OrganizePanel() {
                 />
                 入库时自动整理
               </label>
+              <label className="flex items-center gap-2 text-xs text-ink-600">
+                <input
+                  type="checkbox"
+                  checked={!defaults['downloads.smart_classify'] || isOn(defaults['downloads.smart_classify'])}
+                  onChange={(e) => setDefault('downloads.smart_classify', e.target.checked ? 'true' : 'false')}
+                />
+                下载器智能分类
+              </label>
               <label className="flex items-center gap-2 text-xs text-ink-600">
                 <input
                   type="checkbox"