diff --git a/app/web/src/components/pages/BrowseBody.tsx b/app/web/src/components/pages/BrowseBody.tsx
new file mode 100644
index 0000000..1733c3e
--- /dev/null
+++ b/app/web/src/components/pages/BrowseBody.tsx
@@ -0,0 +1,198 @@
+import type { Locale } from "@app/i18n";
+import { t } from "@app/i18n";
+import { Button } from "@app/ui";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { useState } from "react";
+import { createTRPCReactClient, trpc } from "~/lib/trpc";
+
+const VIDEO_RE = /\.(mp4|mkv|webm|avi|mov|m4v|ts|flv|wmv|mpg|mpeg)$/i;
+
+function pathOf(segments: string[]): string {
+    return segments.length > 0 ? `/${segments.join("/")}` : "/";
+}
+
+function fileRelPath(dirPath: string, basename: string): string {
+    return dirPath === "/" ? `/${basename}` : `${dirPath.replace(/\/+$/, "")}/${basename}`;
+}
+
+function BrowseInner(props: { locale: Locale }) {
+    const { locale } = props;
+    const mounts = trpc.media.mountList.useQuery();
+    const [mountId, setMountId] = useState("");
+    const [path, setPath] = useState("/");
+    const [crumbs, setCrumbs] = useState<string[]>([]);
+
+    const dir = trpc.media.mountListDir.useQuery(
+        { mountId, path },
+        { enabled: Boolean(mountId) },
+    );
+    const scan = trpc.media.libraryScan.useMutation();
+    const ensure = trpc.media.libraryEnsurePath.useMutation();
+
+    function goRoot() {
+        setCrumbs([]);
+        setPath("/");
+    }
+
+    function goUp() {
+        const next = crumbs.slice(0, -1);
+        setCrumbs(next);
+        setPath(pathOf(next));
+    }
+
+    function goToCrumb(index: number) {
+        const next = crumbs.slice(0, index + 1);
+        setCrumbs(next);
+        setPath(pathOf(next));
+    }
+
+    function enter(name: string) {
+        const next = [...crumbs, name];
+        setCrumbs(next);
+        setPath(pathOf(next));
+    }
+
+    async function playFile(basename: string) {
+        if (!mountId) return;
+        try {
+            const item = await ensure.mutateAsync({ mountId, path: fileRelPath(path, basename) });
+            window.location.href = `/${locale}/watch?id=${item.id}`;
+        } catch {
+            // error surfaced via ensure.error
+        }
+    }
+
+    const mountList = mounts.data?.mounts ?? [];
+
+    return (
+        <div className="space-y-4">
+            <div className="flex flex-wrap items-center gap-2">
+                <h1 className="text-xl font-semibold">{t(locale, "browse.title")}</h1>
+                <select
+                    className="h-9 rounded-md border border-border bg-background px-2 text-sm"
+                    value={mountId}
+                    disabled={mounts.isPending || mountList.length === 0}
+                    onChange={(e) => {
+                        setMountId(e.target.value);
+                        setCrumbs([]);
+                        setPath("/");
+                        scan.reset();
+                        ensure.reset();
+                    }}
+                >
+                    <option value="">
+                        {mountList.length === 0
+                            ? t(locale, "browse.mountsEmpty")
+                            : t(locale, "browse.selectMount")}
+                    </option>
+                    {mountList.map((m) => (
+                        <option key={m.id} value={m.id}>
+                            {m.name}
+                        </option>
+                    ))}
+                </select>
+                {mountId && (
+                    <Button
+                        size="sm"
+                        variant="outline"
+                        disabled={scan.isPending}
+                        onClick={() => scan.mutate({ mountId })}
+                    >
+                        {t(locale, "browse.addLibrary")}
+                    </Button>
+                )}
+            </div>
+            {scan.data && (
+                <p className="text-sm text-muted-foreground">
+                    {t(locale, "browse.scanDone", { count: scan.data.scanned })}
+                </p>
+            )}
+            {scan.isError && (
+                <p className="text-sm text-red-600">{scan.error.message}</p>
+            )}
+            <div className="flex flex-wrap items-center gap-2 text-sm text-muted-foreground">
+                <button type="button" onClick={goRoot}>
+                    {t(locale, "browse.root")}
+                </button>
+                {crumbs.map((c, i) => (
+                    <span key={`${c}-${i}`}>
+                        {" / "}
+                        <button type="button" onClick={() => goToCrumb(i)}>
+                            {c}
+                        </button>
+                    </span>
+                ))}
+                {crumbs.length > 0 && (
+                    <button type="button" onClick={goUp}>
+                        {t(locale, "browse.up")}
+                    </button>
+                )}
+            </div>
+            {mountId && dir.isPending && (
+                <p className="text-sm text-muted-foreground">{t(locale, "browse.loading")}</p>
+            )}
+            {mountId && dir.isError && (
+                <p className="text-sm text-red-600">{t(locale, "browse.loadError")}</p>
+            )}
+            {ensure.isError && (
+                <p className="text-sm text-red-600">{t(locale, "browse.playError")}</p>
+            )}
+            <ul className="divide-y divide-border rounded-lg border border-border">
+                {(dir.data?.entries ?? []).map((e) => {
+                    const isVideo = e.type === "file" && VIDEO_RE.test(e.basename);
+                    return (
+                        <li key={e.filename} className="flex items-center justify-between gap-3 p-3 text-sm">
+                            {e.type === "directory" ? (
+                                <button
+                                    type="button"
+                                    className="text-left font-medium"
+                                    onClick={() => enter(e.basename)}
+                                >
+                                    {e.basename}
+                                </button>
+                            ) : (
+                                <span className={isVideo ? "font-medium" : "text-muted-foreground"}>
+                                    {e.basename}
+                                </span>
+                            )}
+                            {isVideo && (
+                                <Button
+                                    size="sm"
+                                    variant="secondary"
+                                    disabled={ensure.isPending}
+                                    onClick={() => playFile(e.basename)}
+                                >
+                                    {t(locale, "browse.play")}
+                                </Button>
+                            )}
+                        </li>
+                    );
+                })}
+                {mountId && dir.data?.entries.length === 0 && (
+                    <li className="p-4 text-sm text-muted-foreground">
+                        {t(locale, "browse.empty")}
+                    </li>
+                )}
+                {!mountId && (
+                    <li className="p-4 text-sm text-muted-foreground">
+                        {t(locale, "browse.empty")}
+                    </li>
+                )}
+            </ul>
+        </div>
+    );
+}
+
+const client = createTRPCReactClient();
+const qc = new QueryClient();
+
+export function BrowseBody(props: { locale: Locale }) {
+    return (
+        <QueryClientProvider client={qc}>
+            <trpc.Provider client={client} queryClient={qc}>
+                <BrowseInner locale={props.locale} />
+            </trpc.Provider>
+        </QueryClientProvider>
+    );
+}
+
diff --git a/app/web/src/pages/[locale]/browse.astro b/app/web/src/pages/[locale]/browse.astro
new file mode 100644
index 0000000..98b0eba
--- /dev/null
+++ b/app/web/src/pages/[locale]/browse.astro
@@ -0,0 +1,20 @@
+---
+import { COOKIE_LANG, isLocale, localePath, resolvePreferredLocale, type Locale } from "@app/i18n";
+import Browse from "~/views/browse.astro";
+
+const raw = Astro.params["locale"];
+const normalized = raw === "zh-cn" ? "zh-CN" : raw;
+
+if (!normalized || !isLocale(normalized)) {
+  const preferred = resolvePreferredLocale(
+    Astro.cookies.get(COOKIE_LANG)?.value,
+    Astro.request.headers.get("accept-language"),
+  );
+  return Astro.redirect(localePath(preferred, "/browse"));
+}
+
+const locale: Locale = normalized;
+---
+
+<Browse locale={locale} />
+
diff --git a/app/web/src/views/browse.astro b/app/web/src/views/browse.astro
new file mode 100644
index 0000000..b67b73f
--- /dev/null
+++ b/app/web/src/views/browse.astro
@@ -0,0 +1,41 @@
+---
+import { alternatePath, type Locale, t } from "@app/i18n";
+import { Toaster } from "@app/ui";
+import { AppShell } from "~/components/AppShell";
+import { BrowseBody } from "~/components/pages/BrowseBody";
+import AppLayout from "~/layouts/AppLayout.astro";
+
+export interface Props {
+  locale: Locale;
+}
+
+const { locale } = Astro.props;
+const other: Locale = locale === "zh-CN" ? "en" : "zh-CN";
+const labels: Record<string, string> = {
+  "meta.brand": t(locale, "meta.brand"),
+  "nav.library": t(locale, "nav.library"),
+  "nav.browse": t(locale, "nav.browse"),
+  "nav.mounts": t(locale, "nav.mounts"),
+  "nav.danmaku": t(locale, "nav.danmaku"),
+};
+---
+
+<AppLayout
+  title={t(locale, "browse.title")}
+  locale={locale}
+  nav={[]}
+  hideSideRail
+  switchHref={alternatePath(Astro.url.pathname, other)}
+  switchLabel={t(other, `locale.${other}` as never)}
+  seo={{
+    title: `${t(locale, "browse.title")} · ${t(locale, "meta.brand")}`,
+    path: Astro.url.pathname,
+    robots: ["noindex", "nofollow"],
+  }}
+>
+  <AppShell locale={locale} active="browse" labels={labels}>
+    <BrowseBody locale={locale} client:load />
+  </AppShell>
+  <Toaster client:load />
+</AppLayout>
+
diff --git a/packages/i18n/src/messages/en.ts b/packages/i18n/src/messages/en.ts
index deae3f1..e254508 100644
--- a/packages/i18n/src/messages/en.ts
+++ b/packages/i18n/src/messages/en.ts
@@ -44,6 +44,15 @@ export const en: Record<MessageKey, string> = {
     "browse.title": "File browser",
     "browse.play": "Play",
     "browse.addLibrary": "Scan into library",
+    "browse.selectMount": "Select mount…",
+    "browse.mountsEmpty": "No mounts yet",
+    "browse.root": "Root",
+    "browse.up": "Up",
+    "browse.empty": "Empty directory or no mount selected",
+    "browse.loading": "Loading…",
+    "browse.loadError": "Failed to read directory",
+    "browse.playError": "Failed to add to library",
+    "browse.scanDone": "Scan complete: {count} files",
 
     "mounts.title": "Mounts",
     "mounts.add": "Add WebDAV",
@@ -125,3 +134,4 @@ export const en: Record<MessageKey, string> = {
     "error.internal.desc":
         "The server hit an unexpected error. Retry later and report the path if it persists.",
 };
+
diff --git a/packages/i18n/src/messages/zh-CN.ts b/packages/i18n/src/messages/zh-CN.ts
index 380d745..700f619 100644
--- a/packages/i18n/src/messages/zh-CN.ts
+++ b/packages/i18n/src/messages/zh-CN.ts
@@ -45,6 +45,15 @@ export const zhCN = {
     "browse.title": "文件浏览",
     "browse.play": "播放",
     "browse.addLibrary": "扫描入库",
+    "browse.selectMount": "选择挂载…",
+    "browse.mountsEmpty": "暂无挂载，请先添加",
+    "browse.root": "根目录",
+    "browse.up": "上一级",
+    "browse.empty": "空目录或未选择挂载",
+    "browse.loading": "加载中…",
+    "browse.loadError": "目录读取失败",
+    "browse.playError": "入库失败，请重试",
+    "browse.scanDone": "扫描完成：{count} 个文件",
 
     "mounts.title": "挂载管理",
     "mounts.add": "添加 WebDAV",
@@ -127,3 +136,4 @@ export const zhCN = {
 
 export type MessageKey = keyof typeof zhCN;
 export type Messages = Record<MessageKey, string>;
+
diff --git a/packages/trpc/src/router/media.router.ts b/packages/trpc/src/router/media.router.ts
index d201eb6..16cff3f 100644
--- a/packages/trpc/src/router/media.router.ts
+++ b/packages/trpc/src/router/media.router.ts
@@ -42,6 +42,11 @@ export const mediaRouter = t.router({
     libraryScan: protectedProcedure
         .input(librarySchemas.scan)
         .mutation(({ ctx, input }) => libraryService.scan(ctx.userId, input.mountId)),
+    libraryEnsurePath: protectedProcedure
+        .input(librarySchemas.ensurePath)
+        .mutation(({ ctx, input }) =>
+            libraryService.ensurePath(ctx.userId, input.mountId, input.path),
+        ),
 
     scrapeSearch: protectedProcedure
         .input(scrapeSchemas.search)
@@ -83,3 +88,4 @@ export const mediaRouter = t.router({
         .input(danmakuSchemas.settings)
         .mutation(({ input }) => input),
 });
+
diff --git a/packages/trpc/src/services/library.service.ts b/packages/trpc/src/services/library.service.ts
index da4c1c3..94743cc 100644
--- a/packages/trpc/src/services/library.service.ts
+++ b/packages/trpc/src/services/library.service.ts
@@ -89,4 +89,39 @@ export const libraryService = {
         }
         return { scanned: MAX_SCAN_FILES - budget.left, message: "扫描完成" };
     },
+
+    /** 单文件入库（Browse 点播放前调用）；已入库则刷新元数据后返回。 */
+    async ensurePath(userId: string, mountId: string, path: string): Promise<MediaItemRow> {
+        const mount = await mountDao.getByIdForUser(mountId, userId);
+        if (!mount) throw new TRPCError({ code: "NOT_FOUND", message: "挂载不存在" });
+        if (!mount.enabled) throw new TRPCError({ code: "BAD_REQUEST", message: "挂载已禁用" });
+        const client = createWebdav({
+            baseUrl: mount.baseUrl,
+            username: mount.username ?? undefined,
+            password: mount.secretEnc ? decryptSecret(mount.secretEnc) : undefined,
+        });
+        const abs = joinWebdavPath(mount.rootPath, path);
+        let size = 0;
+        try {
+            const stat = (await client.stat(abs)) as { size?: number };
+            size = Number(stat.size ?? 0);
+        } catch {
+            throw new TRPCError({ code: "NOT_FOUND", message: "文件不存在" });
+        }
+        const basename = path.split("/").filter(Boolean).pop() ?? path;
+        if (!isVideoFilename(basename)) {
+            throw new TRPCError({ code: "BAD_REQUEST", message: "仅支持视频文件" });
+        }
+        const item = await mediaItemDao.upsertFromScan({
+            userId,
+            mountId,
+            path,
+            rawName: basename,
+            title: basename.replace(/\.[a-z0-9]+$/i, ""),
+            size,
+        });
+        await scrapeService.autoScrape(userId, item.id);
+        return item;
+    },
 };
+
diff --git a/packages/types/src/media-schemas.ts b/packages/types/src/media-schemas.ts
index fd6c664..63964de 100644
--- a/packages/types/src/media-schemas.ts
+++ b/packages/types/src/media-schemas.ts
@@ -44,6 +44,10 @@ export const librarySchemas = {
     }),
     scan: z.object({ mountId: id }),
     get: z.object({ id }),
+    ensurePath: z.object({
+        mountId: id,
+        path: z.string().min(1).max(2000),
+    }),
 };
 
 export const playbackSchemas = {
@@ -85,6 +89,7 @@ export const danmakuSchemas = {
 export type MountCreateInput = z.infer<typeof mountSchemas.create>;
 export type MountListDirInput = z.infer<typeof mountSchemas.listDir>;
 export type LibraryListInput = z.infer<typeof librarySchemas.list>;
+export type LibraryEnsurePathInput = z.infer<typeof librarySchemas.ensurePath>;
 export type PlaybackReportInput = z.infer<typeof playbackSchemas.report>;
 export type ScrapeSearchInput = z.infer<typeof scrapeSchemas.search>;
 export type DanmakuFetchOutput = {
@@ -94,3 +99,4 @@ export type DanmakuFetchOutput = {
     xml: string;
     message?: string;
 };
+