From 58555c5043a9883cbf022757f08ed5a4233e7235 Mon Sep 17 00:00:00 2001
From: zhilv <zhilv666@qq.com>
Date: Thu, 2 Apr 2026 22:33:04 +0800
Subject: [PATCH] feat(release): bump version to 0.1.2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

## 详细信息
- 升级项目版本号到 0.1.2
- 增强刷课稳定性（失败重试、心跳检测、状态自动纠正）
- 优化账号页与工作台紧凑布局，增加已学/未学区分与记录筛选
- 新增首次进入更新检查、更新日志弹窗与在线下载/回退 Release 跳转
---
 package.json                               |   2 +-
 src/App.tsx                                | 593 +++++++++++++++++----
 src/components/account/AccountSidebar.tsx  |  54 +-
 src/components/account/CourseWorkspace.tsx | 245 ++++++---
 src/pages/accounts/Account.tsx             | 172 +++++-
 src/pages/logs/Logs.tsx                    | 280 ++++------
 src/service/http.ts                        |  26 +-
 src/service/update.ts                      | 302 +++++++++++
 src/service/wk.ts                          | 101 +++-
 src/store/account.ts                       | 124 ++++-
 src/store/settings.ts                      |  79 ++-
 vite.config.ts                             |   4 +
 12 files changed, 1569 insertions(+), 413 deletions(-)
 create mode 100644 src/service/update.ts

diff --git a/package.json b/package.json
index ddb674e..dff997c 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "frontend",
   "private": true,
-  "version": "0.0.0",
+  "version": "0.1.2",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/src/App.tsx b/src/App.tsx
index 9318fdd..da3edc0 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,6 +1,27 @@
-import type { ParentComponent } from "solid-js";
-import { createMemo, createResource, createSignal } from "solid-js";
+import type { JSX, ParentComponent } from "solid-js";
+import {
+  For,
+  Show,
+  createEffect,
+  createMemo,
+  createResource,
+  createSignal,
+  onCleanup,
+} from "solid-js";
 import { A, useLocation } from "@solidjs/router";
+import Dialog from "~/components/dialog/Dialog";
+import {
+  RELEASES_PAGE_URL,
+  type LatestRelease,
+  type ReleaseAsset,
+  type RuntimeTarget,
+  detectRuntimeTarget,
+  downloadReleaseAsset,
+  fetchLatestRelease,
+  isRemoteVersionNewer,
+  resolveAssetForRuntime,
+  resolveReleaseLink,
+} from "~/service/update";
 import { versionApi } from "~/service/wk";
 
 const asideList = [
@@ -9,12 +30,138 @@ const asideList = [
   { label: "设置", url: "/setting" },
 ];
 
+type DownloadState = "idle" | "downloading" | "done" | "error";
+type UpdateCheckState =
+  | "idle"
+  | "checking"
+  | "latest"
+  | "available"
+  | "error";
+type MarkdownBlock =
+  | { type: "heading"; level: 1 | 2 | 3 | 4 | 5 | 6; text: string }
+  | { type: "paragraph"; text: string }
+  | { type: "list"; items: string[] };
+
+const normalizeMarkdown = (value: string) => value.replace(/\r\n?/g, "\n");
+
+const parseMarkdownBlocks = (markdown: string): MarkdownBlock[] => {
+  const lines = normalizeMarkdown(markdown).split("\n");
+  const blocks: MarkdownBlock[] = [];
+  let index = 0;
+
+  while (index < lines.length) {
+    const line = lines[index].trim();
+    if (!line) {
+      index += 1;
+      continue;
+    }
+
+    const headingMatch = line.match(/^(#{1,6})\s+(.*)$/);
+    if (headingMatch) {
+      const level = Math.min(
+        6,
+        Math.max(1, headingMatch[1].length),
+      ) as 1 | 2 | 3 | 4 | 5 | 6;
+      blocks.push({
+        type: "heading",
+        level,
+        text: headingMatch[2].trim(),
+      });
+      index += 1;
+      continue;
+    }
+
+    if (line.startsWith("- ")) {
+      const items: string[] = [];
+      while (index < lines.length) {
+        const nextLine = lines[index].trim();
+        if (!nextLine.startsWith("- ")) {
+          break;
+        }
+        items.push(nextLine.slice(2).trim());
+        index += 1;
+      }
+      blocks.push({ type: "list", items });
+      continue;
+    }
+
+    const paragraphLines: string[] = [line];
+    index += 1;
+    while (index < lines.length) {
+      const nextLine = lines[index].trim();
+      if (!nextLine || nextLine.startsWith("- ") || /^#{1,6}\s+/.test(nextLine)) {
+        break;
+      }
+      paragraphLines.push(nextLine);
+      index += 1;
+    }
+    blocks.push({
+      type: "paragraph",
+      text: paragraphLines.join(" ").trim(),
+    });
+  }
+
+  return blocks;
+};
+
+const renderInlineLinks = (text: string): JSX.Element[] => {
+  const parts: JSX.Element[] = [];
+  const regex = /\[([^\]]+)\]\(([^)]+)\)/g;
+  let lastIndex = 0;
+  let match: RegExpExecArray | null;
+
+  while ((match = regex.exec(text)) !== null) {
+    if (match.index > lastIndex) {
+      parts.push(text.slice(lastIndex, match.index));
+    }
+
+    const label = match[1] || "链接";
+    const href = resolveReleaseLink(match[2] || "");
+    parts.push(
+      <a
+        href={href}
+        target="_blank"
+        rel="noopener noreferrer"
+        class="text-cyan-700 underline decoration-cyan-300 underline-offset-2 hover:text-cyan-800"
+      >
+        {label}
+      </a>,
+    );
+    lastIndex = regex.lastIndex;
+  }
+
+  if (lastIndex < text.length) {
+    parts.push(text.slice(lastIndex));
+  }
+
+  return parts.length > 0 ? parts : [text];
+};
+
 const App: ParentComponent = (props) => {
   const location = useLocation();
   const [version] = createResource(versionApi);
   const [copyState, setCopyState] = createSignal<"idle" | "done" | "error">(
     "idle",
   );
+  const [updateDialogOpen, setUpdateDialogOpen] = createSignal(false);
+  const [updateCheckState, setUpdateCheckState] =
+    createSignal<UpdateCheckState>("idle");
+  const [hasAutoCheckedUpdate, setHasAutoCheckedUpdate] = createSignal(false);
+  const [latestRelease, setLatestRelease] = createSignal<LatestRelease | null>(
+    null,
+  );
+  const [runtimeTarget, setRuntimeTarget] = createSignal<RuntimeTarget>({
+    os: "unknown",
+    arch: "unknown",
+  });
+  const [matchedAsset, setMatchedAsset] = createSignal<ReleaseAsset | null>(
+    null,
+  );
+  const [updateCheckError, setUpdateCheckError] = createSignal("");
+  const [downloadState, setDownloadState] = createSignal<DownloadState>("idle");
+  const [downloadProgress, setDownloadProgress] = createSignal(0);
+  const [downloadError, setDownloadError] = createSignal("");
+  let updateAbortController: AbortController | null = null;
 
   const isActive = (url: string) =>
     location.pathname === url ||
@@ -45,6 +192,30 @@ const App: ParentComponent = (props) => {
       `Email: ${emailText()}`,
     ].join("\n"),
   );
+  const updateSummaryText = createMemo(() => {
+    if (updateCheckState() === "checking") {
+      return "更新检查中...";
+    }
+    if (updateCheckState() === "available") {
+      return `发现新版本：${latestRelease()?.tag_name ?? "-"}`;
+    }
+    if (updateCheckState() === "latest") {
+      return "已是最新版本";
+    }
+    if (updateCheckState() === "error") {
+      return updateCheckError() || "更新检查失败";
+    }
+    return "未检查更新";
+  });
+  const releaseNotesBlocks = createMemo(() =>
+    parseMarkdownBlocks(latestRelease()?.body ?? ""),
+  );
+  const runtimeTargetText = createMemo(
+    () => `${runtimeTarget().os} / ${runtimeTarget().arch}`,
+  );
+  const releaseLink = createMemo(
+    () => latestRelease()?.html_url || RELEASES_PAGE_URL,
+  );
 
   const handleCopyVersion = async () => {
     try {
@@ -56,109 +227,349 @@ const App: ParentComponent = (props) => {
 
     window.setTimeout(() => setCopyState("idle"), 1800);
   };
+  const performUpdateCheck = async (manual = false) => {
+    if (updateCheckState() === "checking") {
+      return;
+    }
+
+    setUpdateCheckState("checking");
+    setUpdateCheckError("");
+    setDownloadState("idle");
+    setDownloadProgress(0);
+    setDownloadError("");
+
+    if (updateAbortController) {
+      updateAbortController.abort();
+    }
+    updateAbortController = new AbortController();
+
+    try {
+      const [release, target] = await Promise.all([
+        fetchLatestRelease(updateAbortController.signal),
+        detectRuntimeTarget(),
+      ]);
+      setRuntimeTarget(target);
+
+      const hasNewVersion = isRemoteVersionNewer(versionText(), release.tag_name);
+      if (!hasNewVersion) {
+        setUpdateCheckState("latest");
+        if (manual) {
+          setLatestRelease(release);
+          setMatchedAsset(resolveAssetForRuntime(release.assets, target));
+        }
+        return;
+      }
+
+      setLatestRelease(release);
+      setMatchedAsset(resolveAssetForRuntime(release.assets, target));
+      setUpdateCheckState("available");
+      setUpdateDialogOpen(true);
+    } catch (error) {
+      if (error instanceof DOMException && error.name === "AbortError") {
+        return;
+      }
+
+      const message = error instanceof Error ? error.message : "更新检查失败";
+      setUpdateCheckError(message);
+      setUpdateCheckState("error");
+    }
+  };
+  const openReleasePage = () => {
+    window.open(releaseLink(), "_blank", "noopener,noreferrer");
+  };
+  const handleDownloadUpdate = async () => {
+    const asset = matchedAsset();
+    if (!asset) {
+      openReleasePage();
+      return;
+    }
+
+    setDownloadState("downloading");
+    setDownloadProgress(0);
+    setDownloadError("");
+    try {
+      await downloadReleaseAsset(asset, (progress) => {
+        setDownloadProgress(progress);
+      });
+      setDownloadState("done");
+    } catch (error) {
+      const message = error instanceof Error ? error.message : "下载失败";
+      setDownloadError(message);
+      setDownloadState("error");
+      openReleasePage();
+    }
+  };
+
+  createEffect(() => {
+    version.loading;
+    if (hasAutoCheckedUpdate() || version.loading) {
+      return;
+    }
+
+    setHasAutoCheckedUpdate(true);
+    void performUpdateCheck(false);
+  });
+
+  onCleanup(() => {
+    if (updateAbortController) {
+      updateAbortController.abort();
+      updateAbortController = null;
+    }
+  });
 
   return (
-    <div class="flex h-screen w-full overflow-hidden bg-[radial-gradient(circle_at_top_left,_rgba(103,232,249,0.24),_transparent_28%),radial-gradient(circle_at_top_right,_rgba(251,191,36,0.16),_transparent_24%),linear-gradient(180deg,_#ecfeff_0%,_#f8fafc_52%,_#eef2ff_100%)] text-zinc-800">
-      <div class="flex min-h-0 w-full flex-col p-3 sm:p-4">
-        <header class="flex shrink-0 items-center rounded-[24px] border border-white/70 bg-white/75 px-4 py-3 shadow-[0_18px_50px_-22px_rgba(14,116,144,0.35)] backdrop-blur-xl">
-          <div class="flex min-w-0 items-center gap-3">
-            <A
-              href="/"
-              class="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-[linear-gradient(135deg,_#06b6d4,_#22c55e)] text-base font-semibold text-white shadow-lg shadow-cyan-500/20"
-            >
-              WK
-            </A>
-            <div class="min-w-0">
+    <>
+      <div class="flex h-dvh w-full overflow-hidden bg-[radial-gradient(circle_at_top_left,_rgba(103,232,249,0.24),_transparent_28%),radial-gradient(circle_at_top_right,_rgba(251,191,36,0.16),_transparent_24%),linear-gradient(180deg,_#ecfeff_0%,_#f8fafc_52%,_#eef2ff_100%)] text-zinc-800">
+        <div class="flex min-h-0 w-full flex-col p-3 sm:p-4">
+          <header class="flex shrink-0 items-center rounded-[24px] border border-white/70 bg-white/75 px-4 py-3 shadow-[0_18px_50px_-22px_rgba(14,116,144,0.35)] backdrop-blur-xl">
+            <div class="flex min-w-0 items-center gap-3">
               <A
                 href="/"
-                class="block truncate text-xl font-semibold tracking-wide text-zinc-900"
+                class="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-[linear-gradient(135deg,_#06b6d4,_#22c55e)] text-base font-semibold text-white shadow-lg shadow-cyan-500/20"
               >
-                网课控制台
+                WK
               </A>
-              <p class="truncate text-xs text-zinc-500 sm:text-sm">
-                管理账号、课程记录与任务日志
-              </p>
+              <div class="min-w-0">
+                <A
+                  href="/"
+                  class="block truncate text-xl font-semibold tracking-wide text-zinc-900"
+                >
+                  网课控制台
+                </A>
+                <p class="truncate text-xs text-zinc-500 sm:text-sm">
+                  管理账号、课程记录与任务日志
+                </p>
+              </div>
             </div>
-          </div>
-        </header>
+          </header>
 
-        <div class="mt-4 flex min-h-0 min-w-0 flex-1 gap-4">
-          <aside class="flex w-64 shrink-0 flex-col rounded-[28px] border border-white/70 bg-white/70 p-3 shadow-[0_18px_50px_-22px_rgba(15,23,42,0.18)] backdrop-blur-xl">
-            <div class="mb-4 rounded-2xl bg-[linear-gradient(135deg,_rgba(6,182,212,0.12),_rgba(34,197,94,0.14))] px-4 py-4">
-              <p class="text-xs font-medium tracking-[0.24em] text-cyan-700/75 uppercase">
-                Navigation
-              </p>
-              <p class="mt-2 text-sm leading-6 text-zinc-600">
-                在这里切换账号管理、全局日志与系统设置。
-              </p>
-            </div>
+          <div class="mt-4 flex min-h-0 min-w-0 flex-1 flex-col gap-4 xl:flex-row">
+            <aside class="flex shrink-0 flex-col rounded-[28px] border border-white/70 bg-white/70 p-3 shadow-[0_18px_50px_-22px_rgba(15,23,42,0.18)] backdrop-blur-xl xl:w-64">
+              <div class="mb-4 hidden rounded-2xl bg-[linear-gradient(135deg,_rgba(6,182,212,0.12),_rgba(34,197,94,0.14))] px-4 py-4 xl:block">
+                <p class="text-xs font-medium tracking-[0.24em] text-cyan-700/75 uppercase">
+                  Navigation
+                </p>
+                <p class="mt-2 text-sm leading-6 text-zinc-600">
+                  在这里切换账号管理、全局日志与系统设置。
+                </p>
+              </div>
 
-            <nav class="flex flex-col gap-2">
-              {asideList.map((item) => {
-                const active = isActive(item.url);
+              <nav class="flex gap-2 overflow-x-auto pb-1 xl:flex-col xl:overflow-visible xl:pb-0">
+                {asideList.map((item) => {
+                  const active = isActive(item.url);
 
-                return (
-                  <A
-                    href={item.url}
-                    class={
-                      active
-                        ? "rounded-2xl border border-cyan-200 bg-[linear-gradient(135deg,_rgba(34,211,238,0.18),_rgba(34,197,94,0.18))] px-4 py-3 text-sm font-medium text-zinc-900 shadow-sm"
-                        : "rounded-2xl border border-transparent px-4 py-3 text-sm font-medium text-zinc-600 transition hover:border-zinc-200 hover:bg-zinc-50/80 hover:text-zinc-900"
-                    }
+                  return (
+                    <A
+                      href={item.url}
+                      class={
+                        active
+                          ? "min-w-fit whitespace-nowrap rounded-2xl border border-cyan-200 bg-[linear-gradient(135deg,_rgba(34,211,238,0.18),_rgba(34,197,94,0.18))] px-4 py-3 text-sm font-medium text-zinc-900 shadow-sm"
+                          : "min-w-fit whitespace-nowrap rounded-2xl border border-transparent px-4 py-3 text-sm font-medium text-zinc-600 transition hover:border-zinc-200 hover:bg-zinc-50/80 hover:text-zinc-900"
+                      }
+                    >
+                      <div class="flex items-center justify-between">
+                        <span>{item.label}</span>
+                        <span
+                          class={
+                            active
+                              ? "text-cyan-700"
+                              : "text-zinc-400 transition group-hover:text-zinc-600"
+                          }
+                        >
+                          ›
+                        </span>
+                      </div>
+                    </A>
+                  );
+                })}
+              </nav>
+
+              <div class="mt-3 rounded-2xl border border-zinc-200/80 bg-zinc-50/90 px-4 py-4 xl:mt-auto">
+                <p class="text-sm font-medium text-zinc-800">当前页面</p>
+                <p class="mt-1 text-sm text-zinc-500">
+                  {asideList.find((item) => isActive(item.url))?.label ?? "账号"}
+                </p>
+                <p class="mt-3 text-xs font-medium tracking-[0.18em] text-cyan-700/75 uppercase">
+                  Runtime
+                </p>
+                <div class="mt-2 grid gap-1 text-xs text-zinc-500 xl:block">
+                  <p>Version: {versionText()}</p>
+                  <p>Commit: {commitText()}</p>
+                  <p>Build: {buildText()}</p>
+                  <p>Author: {authorText()}</p>
+                  <p>Email: {emailText()}</p>
+                </div>
+                <p
+                  class={`mt-2 text-xs ${updateCheckState() === "error" ? "text-rose-500" : "text-zinc-500"}`}
+                >
+                  更新: {updateSummaryText()}
+                </p>
+                <div class="mt-3 flex flex-wrap items-center gap-2">
+                  <button
+                    type="button"
+                    class="rounded-lg border border-zinc-200 bg-white px-3 py-1.5 text-xs text-zinc-700 transition hover:bg-zinc-100"
+                    onClick={() => void handleCopyVersion()}
                   >
-                    <div class="flex items-center justify-between">
-                      <span>{item.label}</span>
-                      <span
-                        class={
-                          active
-                            ? "text-cyan-700"
-                            : "text-zinc-400 transition group-hover:text-zinc-600"
-                        }
-                      >
-                        ›
-                      </span>
-                    </div>
-                  </A>
-                );
-              })}
-            </nav>
+                    {copyState() === "done"
+                      ? "已复制"
+                      : copyState() === "error"
+                        ? "复制失败"
+                        : "复制版本信息"}
+                  </button>
+                  <button
+                    type="button"
+                    class="rounded-lg border border-cyan-200 bg-cyan-50 px-3 py-1.5 text-xs text-cyan-700 transition hover:bg-cyan-100 disabled:cursor-not-allowed disabled:opacity-60"
+                    disabled={updateCheckState() === "checking"}
+                    onClick={() => void performUpdateCheck(true)}
+                  >
+                    {updateCheckState() === "checking" ? "检查中..." : "检查更新"}
+                  </button>
+                </div>
+                {versionErrorText() ? (
+                  <p class="mt-2 text-xs text-rose-500">{versionErrorText()}</p>
+                ) : null}
+              </div>
+            </aside>
 
-            <div class="mt-auto rounded-2xl border border-zinc-200/80 bg-zinc-50/90 px-4 py-4">
-              <p class="text-sm font-medium text-zinc-800">当前页面</p>
-              <p class="mt-1 text-sm text-zinc-500">
-                {asideList.find((item) => isActive(item.url))?.label ?? "账号"}
-              </p>
-              <p class="mt-3 text-xs font-medium tracking-[0.18em] text-cyan-700/75 uppercase">
-                Runtime
-              </p>
-              <p class="mt-2 text-xs text-zinc-500">Version: {versionText()}</p>
-              <p class="mt-1 text-xs text-zinc-500">Commit: {commitText()}</p>
-              <p class="mt-1 text-xs text-zinc-500">Build: {buildText()}</p>
-              <p class="mt-1 text-xs text-zinc-500">Author: {authorText()}</p>
-              <p class="mt-1 text-xs text-zinc-500">Email: {emailText()}</p>
-              <button
-                type="button"
-                class="mt-3 rounded-lg border border-zinc-200 bg-white px-3 py-1.5 text-xs text-zinc-700 transition hover:bg-zinc-100"
-                onClick={() => void handleCopyVersion()}
-              >
-                {copyState() === "done"
-                  ? "已复制"
-                  : copyState() === "error"
-                    ? "复制失败"
-                    : "复制版本信息"}
-              </button>
-              {versionErrorText() ? (
-                <p class="mt-2 text-xs text-rose-500">{versionErrorText()}</p>
-              ) : null}
-            </div>
-          </aside>
-
-          <main class="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden rounded-[32px] border border-white/80 bg-white/80 p-3 shadow-[0_18px_60px_-24px_rgba(15,23,42,0.22)] backdrop-blur-xl sm:p-4">
-            {props.children}
-          </main>
+            <main class="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden rounded-[32px] border border-white/80 bg-white/80 p-3 shadow-[0_18px_60px_-24px_rgba(15,23,42,0.22)] backdrop-blur-xl sm:p-4">
+              {props.children}
+            </main>
+          </div>
         </div>
       </div>
-    </div>
+
+      <Dialog
+        open={updateDialogOpen}
+        onClose={() => {
+          if (downloadState() === "downloading") {
+            return;
+          }
+          setUpdateDialogOpen(false);
+        }}
+        title={`发现更新 ${latestRelease()?.tag_name ?? ""}`}
+        widthClass="max-w-3xl"
+        closeOnOverlay={downloadState() !== "downloading"}
+        footer={
+          <>
+            <button
+              type="button"
+              class="rounded-xl border border-zinc-200 bg-white px-3 py-2 text-sm text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
+              disabled={downloadState() === "downloading"}
+              onClick={() => setUpdateDialogOpen(false)}
+            >
+              稍后更新
+            </button>
+            <button
+              type="button"
+              class="rounded-xl border border-cyan-200 bg-cyan-50 px-3 py-2 text-sm text-cyan-700 transition hover:bg-cyan-100"
+              onClick={openReleasePage}
+            >
+              打开 Release
+            </button>
+            <button
+              type="button"
+              class="rounded-xl bg-[linear-gradient(135deg,#06b6d4,#14b8a6)] px-3 py-2 text-sm text-white transition hover:opacity-95 disabled:cursor-not-allowed disabled:opacity-60"
+              disabled={downloadState() === "downloading"}
+              onClick={() => void handleDownloadUpdate()}
+            >
+              {matchedAsset()
+                ? downloadState() === "downloading"
+                  ? `下载中 ${downloadProgress()}%`
+                  : "在线下载"
+                : "前往 Release 下载"}
+            </button>
+          </>
+        }
+      >
+        <div class="grid gap-4">
+          <div class="grid gap-2 rounded-2xl border border-zinc-200 bg-zinc-50/85 p-4 text-sm text-zinc-700 md:grid-cols-2">
+            <p>
+              当前版本：<span class="font-semibold text-zinc-900">{versionText()}</span>
+            </p>
+            <p>
+              最新版本：
+              <span class="font-semibold text-zinc-900">
+                {latestRelease()?.tag_name ?? "-"}
+              </span>
+            </p>
+            <p>
+              发布名称：
+              <span class="font-semibold text-zinc-900">
+                {latestRelease()?.name ?? "-"}
+              </span>
+            </p>
+            <p>
+              运行环境：
+              <span class="font-semibold text-zinc-900">{runtimeTargetText()}</span>
+            </p>
+            <p class="md:col-span-2">
+              匹配资源：
+              <span class="font-semibold text-zinc-900">
+                {matchedAsset()?.name ?? "未识别当前系统架构，请点击“打开 Release”手动下载"}
+              </span>
+            </p>
+          </div>
+
+          <Show when={downloadState() !== "idle"}>
+            <div class="rounded-2xl border border-zinc-200 bg-zinc-50/85 p-4">
+              <p class="text-sm font-medium text-zinc-800">
+                {downloadState() === "downloading"
+                  ? "下载进度"
+                  : downloadState() === "done"
+                    ? "下载完成"
+                    : "下载失败"}
+              </p>
+              <div class="mt-2 h-2.5 overflow-hidden rounded-full bg-zinc-200">
+                <div
+                  class={`h-full rounded-full transition-all ${downloadState() === "error" ? "bg-rose-400" : "bg-cyan-500"}`}
+                  style={{
+                    width: `${downloadState() === "error" ? 100 : downloadProgress()}%`,
+                  }}
+                />
+              </div>
+              <p class="mt-2 text-xs text-zinc-600">
+                {downloadState() === "downloading"
+                  ? `已下载 ${downloadProgress()}%`
+                  : downloadState() === "done"
+                    ? "安装包已下载到浏览器默认下载目录，请替换本地程序后重启。"
+                    : downloadError() || "下载失败，请改为 Release 页面手动下载。"}
+              </p>
+            </div>
+          </Show>
+
+          <div class="rounded-2xl border border-zinc-200 bg-white p-4">
+            <p class="text-sm font-semibold text-zinc-900">更新日志</p>
+            <div class="mt-3 space-y-2 text-sm leading-6 text-zinc-700">
+              <For each={releaseNotesBlocks()}>
+                {(block) => {
+                  if (block.type === "heading") {
+                    return (
+                      <h3
+                        class={`font-semibold text-zinc-900 ${block.level <= 2 ? "text-base" : "text-sm"}`}
+                      >
+                        {renderInlineLinks(block.text)}
+                      </h3>
+                    );
+                  }
+
+                  if (block.type === "list") {
+                    return (
+                      <ul class="list-disc space-y-1 pl-5">
+                        <For each={block.items}>
+                          {(item) => <li>{renderInlineLinks(item)}</li>}
+                        </For>
+                      </ul>
+                    );
+                  }
+
+                  return <p>{renderInlineLinks(block.text)}</p>;
+                }}
+              </For>
+            </div>
+          </div>
+        </div>
+      </Dialog>
+    </>
   );
 };
 
diff --git a/src/components/account/AccountSidebar.tsx b/src/components/account/AccountSidebar.tsx
index 9be109a..7cd66b1 100644
--- a/src/components/account/AccountSidebar.tsx
+++ b/src/components/account/AccountSidebar.tsx
@@ -29,21 +29,23 @@ const AccountSidebar = (props: AccountSidebarProps) => {
 
   return (
     <section
-      class="flex min-h-0 flex-col overflow-hidden rounded-[28px] border border-white/80 bg-white/85 shadow-[0_18px_50px_-28px_rgba(15,23,42,0.3)] xl:shrink-0"
+      class="flex min-h-0 w-full flex-col overflow-hidden rounded-[24px] border border-white/80 bg-white/85 shadow-[0_14px_40px_-26px_rgba(15,23,42,0.28)] xl:shrink-0"
       style={{
-        width: `${props.sidebarWidth}px`,
-        "min-width": `${props.sidebarWidth}px`,
+        width: `min(100%, ${props.sidebarWidth}px)`,
+        "min-width": "0px",
       }}
     >
-      <div class="flex items-center justify-between border-b border-zinc-200/80 px-5 py-4">
+      <div class="flex flex-col gap-2.5 border-b border-zinc-200/80 px-4 py-3 sm:flex-row sm:items-start sm:justify-between">
         <div>
-          <p class="text-lg font-semibold text-zinc-900">账号信息</p>
-          <p class="mt-1 text-sm text-zinc-500">选择账号后查看课程与记录</p>
+          <p class="text-base font-semibold text-zinc-900">账号信息</p>
+          <p class="mt-1 text-xs text-zinc-500 sm:text-sm">
+            选择账号后查看课程与记录
+          </p>
         </div>
 
         <button
           type="button"
-          class="rounded-xl border border-zinc-200 bg-white px-3 py-2 text-sm text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
+          class="self-start rounded-xl border border-zinc-200 bg-white px-3 py-1.5 text-xs text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60 sm:self-auto sm:text-sm"
           disabled={!props.selectedAccountId || props.isRefreshingAccount}
           onClick={props.onRefreshAccount}
         >
@@ -54,8 +56,8 @@ const AccountSidebar = (props: AccountSidebarProps) => {
       <div
         class={
           compact()
-            ? "flex min-h-0 flex-1 flex-col gap-2 overflow-y-auto p-3"
-            : "flex min-h-0 flex-1 flex-col gap-3 overflow-y-auto p-4"
+            ? "flex min-h-0 flex-1 flex-col gap-2 overflow-y-auto p-2.5"
+            : "flex min-h-0 flex-1 flex-col gap-2.5 overflow-y-auto p-3"
         }
       >
         <For each={props.accounts}>
@@ -77,17 +79,19 @@ const AccountSidebar = (props: AccountSidebarProps) => {
             const courseTypeLabel = selected()
               ? `当前筛选：${currentCourseLabel}`
               : `登录类型：${statusLabel}`;
+            const badgeTypeLabel = selected() ? currentCourseLabel : statusLabel;
+            const badgeCountLabel = `${account.courses.length} 门`;
 
             return (
               <div
                 class={
                   selected()
                     ? compact()
-                      ? "rounded-[22px] border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-3 py-3 shadow-sm"
-                      : "rounded-3xl border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-4 py-4 shadow-sm"
+                      ? "rounded-[20px] border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-3 py-2.5 shadow-sm"
+                      : "rounded-[22px] border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-3.5 py-3 shadow-sm"
                     : compact()
-                      ? "rounded-[22px] border border-zinc-200 bg-[linear-gradient(180deg,rgba(250,250,250,0.9),rgba(255,255,255,0.95))] px-3 py-3 shadow-sm transition hover:border-cyan-200 hover:bg-white"
-                      : "rounded-3xl border border-zinc-200 bg-[linear-gradient(180deg,rgba(250,250,250,0.9),rgba(255,255,255,0.95))] px-4 py-4 shadow-sm transition hover:border-cyan-200 hover:bg-white"
+                      ? "rounded-[20px] border border-zinc-200 bg-[linear-gradient(180deg,rgba(250,250,250,0.9),rgba(255,255,255,0.95))] px-3 py-2.5 shadow-sm transition hover:border-cyan-200 hover:bg-white"
+                      : "rounded-[22px] border border-zinc-200 bg-[linear-gradient(180deg,rgba(250,250,250,0.9),rgba(255,255,255,0.95))] px-3.5 py-3 shadow-sm transition hover:border-cyan-200 hover:bg-white"
                 }
               >
                 <div class="flex items-start justify-between gap-3">
@@ -101,15 +105,23 @@ const AccountSidebar = (props: AccountSidebarProps) => {
                         <p
                           class={
                             compact()
-                              ? "truncate text-base font-semibold text-zinc-900"
-                              : "truncate text-lg font-semibold text-zinc-900"
+                              ? "truncate text-[15px] font-semibold text-zinc-900"
+                              : "truncate text-base font-semibold text-zinc-900"
                           }
                         >
                           {account.user.name} + {platformLabel}
                         </p>
-                        <p class="mt-1 text-sm text-zinc-500">
+                        <p class="mt-1 text-xs text-zinc-500 sm:text-sm">
                           学号：{account.user.id}
                         </p>
+                        <div class="mt-1.5 flex flex-wrap items-center gap-1">
+                          <span class="rounded-full border border-cyan-200 bg-cyan-50 px-2 py-0.5 text-[11px] text-cyan-700">
+                            {badgeTypeLabel}
+                          </span>
+                          <span class="rounded-full border border-zinc-200 bg-zinc-100 px-2 py-0.5 text-[11px] text-zinc-600">
+                            {badgeCountLabel}
+                          </span>
+                        </div>
                       </div>
                     </div>
                   </button>
@@ -123,26 +135,26 @@ const AccountSidebar = (props: AccountSidebarProps) => {
                 </div>
 
                 <Show when={expanded()}>
-                  <div class="mt-4 grid gap-2 border-t border-cyan-100 pt-4 text-sm text-zinc-600">
+                  <div class="mt-2.5 grid gap-1 border-t border-cyan-100 pt-2.5 text-xs text-zinc-600 sm:grid-cols-2 sm:gap-1.5">
                     <p>学院：{account.user.dept}</p>
                     <p>班级：{account.user.class}</p>
                     <p>性别：{account.user.gender}</p>
                     <p>站点：{account.host}</p>
                     <p>账号：{account.username || "-"}</p>
                     <p>{courseCountLabel}</p>
-                    <p>{courseTypeLabel}</p>
+                    <p class="sm:col-span-2">{courseTypeLabel}</p>
 
-                    <div class="mt-2 flex gap-2">
+                    <div class="mt-1.5 flex flex-wrap gap-1.5 sm:col-span-2">
                       <button
                         type="button"
-                        class="rounded-xl border border-cyan-200 bg-white px-3 py-2 text-sm text-cyan-700 transition hover:bg-cyan-50"
+                        class="rounded-xl border border-cyan-200 bg-white px-2.5 py-1 text-xs text-cyan-700 transition hover:bg-cyan-50"
                         onClick={() => props.onToggleExpand(account.id)}
                       >
                         收起信息
                       </button>
                       <button
                         type="button"
-                        class="rounded-xl border border-rose-200 bg-white px-3 py-2 text-sm text-rose-500 transition hover:bg-rose-50 disabled:cursor-not-allowed disabled:opacity-60"
+                        class="rounded-xl border border-rose-200 bg-white px-2.5 py-1 text-xs text-rose-500 transition hover:bg-rose-50 disabled:cursor-not-allowed disabled:opacity-60"
                         disabled={props.loggingOutId === account.id}
                         onClick={(event) => {
                           event.stopPropagation();
diff --git a/src/components/account/CourseWorkspace.tsx b/src/components/account/CourseWorkspace.tsx
index 5b53ba8..3890780 100644
--- a/src/components/account/CourseWorkspace.tsx
+++ b/src/components/account/CourseWorkspace.tsx
@@ -1,4 +1,11 @@
-import { For, Show, createEffect, type JSX } from "solid-js";
+import {
+  For,
+  Show,
+  createEffect,
+  createMemo,
+  createSignal,
+  type JSX,
+} from "solid-js";
 import type { CourseKind, RecordType } from "~/service/wk";
 import type { AccountItem } from "~/store/account";
 import type { CourseType } from "~/types/Course";
@@ -12,6 +19,7 @@ type CourseRecordTypeOption = {
   label: string;
   value: CourseKind;
 };
+type RecordFilter = "all" | "unlearned" | "learned";
 
 interface CourseWorkspaceProps {
   selectedAccount: AccountItem | null;
@@ -65,6 +73,7 @@ const stripTimestamp = (message: string) => {
 
 const CourseWorkspace = (props: CourseWorkspaceProps) => {
   let logContainerRef: HTMLDivElement | undefined;
+  const [recordFilter, setRecordFilter] = createSignal<RecordFilter>("all");
 
   createEffect(() => {
     props.studyLogs.length;
@@ -88,16 +97,44 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
   });
 
   const compact = () => props.densityMode === "compact";
+  const recordStats = createMemo(() => {
+    const learned = props.records.filter((record) => {
+      const stateText = props.renderRecordState(record.state) || "未知状态";
+      return stateText.includes("已学") || record.progress === "1.00";
+    }).length;
+    const total = props.records.length;
+
+    return {
+      total,
+      learned,
+      unlearned: Math.max(0, total - learned),
+    };
+  });
+  const filteredRecords = createMemo(() => {
+    if (recordFilter() === "all") {
+      return props.records;
+    }
+
+    return props.records.filter((record) => {
+      const stateText = props.renderRecordState(record.state) || "未知状态";
+      const learned = stateText.includes("已学") || record.progress === "1.00";
+      return recordFilter() === "learned" ? learned : !learned;
+    });
+  });
 
   return (
-    <section class="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden rounded-[28px] border border-white/80 bg-white/85 shadow-[0_18px_50px_-28px_rgba(15,23,42,0.3)]">
-      <div class="flex items-center justify-between border-b border-zinc-200/80 px-5 py-4">
+    <section class="flex min-h-0 min-w-0 flex-1 flex-col overflow-hidden rounded-[22px] border border-white/80 bg-white/85 shadow-[0_12px_34px_-24px_rgba(15,23,42,0.26)]">
+      <div class="flex flex-col gap-1.5 border-b border-zinc-200/80 px-3 py-2.5 sm:flex-row sm:items-center sm:justify-between">
         <div>
-          <p class="text-lg font-semibold text-zinc-900">课程工作台</p>
-          <p class="mt-1 text-sm text-zinc-500">课程、记录与日志统一查看</p>
+          <p class="text-[15px] font-semibold text-zinc-900 sm:text-base">
+            课程工作台
+          </p>
+          <p class="mt-0.5 text-xs text-zinc-500 sm:text-sm">
+            课程、记录与日志统一查看
+          </p>
         </div>
         <Show when={props.selectedAccount}>
-          <div class="rounded-full bg-cyan-50 px-3 py-1 text-sm text-cyan-700">
+          <div class="rounded-full bg-cyan-50 px-2 py-0.5 text-xs text-cyan-700">
             {props.selectedAccount?.user.name}
           </div>
         </Show>
@@ -114,19 +151,21 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
         <div
           class={
             compact()
-              ? "grid min-h-0 flex-1 gap-3 p-3 xl:grid-cols-[320px_minmax(0,1fr)]"
-              : "grid min-h-0 flex-1 gap-4 p-4 xl:grid-cols-[340px_minmax(0,1fr)]"
+              ? "grid min-h-0 flex-1 gap-1.5 p-1.5 lg:grid-cols-[280px_minmax(0,1fr)]"
+              : "grid min-h-0 flex-1 gap-2 p-2 lg:grid-cols-[300px_minmax(0,1fr)]"
           }
         >
-          <div class="flex min-h-0 flex-col overflow-hidden rounded-3xl border border-zinc-200 bg-[linear-gradient(180deg,rgba(248,250,252,0.9),rgba(255,255,255,0.95))]">
-            <div class="flex flex-wrap items-center justify-between gap-3 border-b border-zinc-200 px-4 py-3">
-              <div class="border-b border-zinc-200 px-4 py-3">
-                <p class="text-sm font-semibold text-zinc-800">课程列表</p>
+          <div class="flex min-h-0 flex-col overflow-hidden rounded-[18px] border border-zinc-200 bg-[linear-gradient(180deg,rgba(248,250,252,0.9),rgba(255,255,255,0.95))]">
+            <div class="flex flex-wrap items-center justify-between gap-1.5 border-b border-zinc-200 px-2.5 py-2">
+              <div>
+                <p class="text-xs font-semibold text-zinc-800 sm:text-sm">
+                  课程列表
+                </p>
                 <p class="mt-1 text-xs text-zinc-500">点击课程查看对应记录</p>
               </div>
               <div class="flex flex-wrap items-center gap-2">
                 <select
-                  class="rounded-xl border border-zinc-200 bg-white px-3 py-2 text-sm transition outline-none focus:border-cyan-400"
+                  class="rounded-lg border border-zinc-200 bg-white px-2 py-1 text-xs transition outline-none focus:border-cyan-400"
                   value={props.courseKind}
                   onChange={(event) =>
                     props.onChangeCourseRecordType(
@@ -140,7 +179,7 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                 </select>
                 <button
                   type="button"
-                  class="rounded-xl border border-zinc-200 bg-white px-3 py-2 text-sm text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
+                  class="rounded-lg border border-zinc-200 bg-white px-2 py-1 text-xs text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
                   disabled={props.isRefreshingCourseRecords}
                   onClick={props.onRefreshCourseRecords}
                 >
@@ -149,13 +188,7 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
               </div>
             </div>
 
-            <div
-              class={
-                compact()
-                  ? "flex min-h-0 flex-1 flex-col gap-2 overflow-y-auto p-2.5"
-                  : "flex min-h-0 flex-1 flex-col gap-3 overflow-y-auto p-3"
-              }
-            >
+            <div class={compact() ? "flex min-h-0 flex-1 flex-col gap-1 overflow-y-auto p-1.5" : "flex min-h-0 flex-1 flex-col gap-1.5 overflow-y-auto p-2"}>
               <Show when={props.selectedCourseList.length === 0}>
                 <EmptyState>
                   当前“{props.currentCourseKindLabel}
@@ -173,18 +206,18 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                       class={
                         selected()
                           ? compact()
-                            ? "rounded-[20px] border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-3 py-3 text-left shadow-sm"
-                            : "rounded-[22px] border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-4 py-4 text-left shadow-sm"
+                            ? "rounded-[16px] border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-2 py-2 text-left shadow-sm"
+                            : "rounded-[18px] border border-cyan-300 bg-[linear-gradient(145deg,rgba(236,254,255,0.95),rgba(240,253,244,0.95))] px-2.5 py-2.5 text-left shadow-sm"
                           : compact()
-                            ? "rounded-[20px] border border-zinc-200 bg-white px-3 py-3 text-left shadow-sm transition hover:border-cyan-200 hover:bg-cyan-50/30"
-                            : "rounded-[22px] border border-zinc-200 bg-white px-4 py-4 text-left shadow-sm transition hover:border-cyan-200 hover:bg-cyan-50/30"
+                            ? "rounded-[16px] border border-zinc-200 bg-white px-2 py-2 text-left shadow-sm transition hover:border-cyan-200 hover:bg-cyan-50/30"
+                            : "rounded-[18px] border border-zinc-200 bg-white px-2.5 py-2.5 text-left shadow-sm transition hover:border-cyan-200 hover:bg-cyan-50/30"
                       }
                       onClick={() => props.onSelectCourse(course.id)}
                     >
-                      <p class="truncate text-base font-semibold text-zinc-900">
+                      <p class="truncate text-sm font-semibold text-zinc-900">
                         {course.name}
                       </p>
-                      <div class="mt-3 grid gap-1 text-sm text-zinc-600">
+                      <div class="mt-1 grid gap-0.5 text-xs text-zinc-600">
                         <p>课程号：{course.id}</p>
                         <p>老师：{course.teacher}</p>
                         <p>进度：{course.progress}</p>
@@ -199,14 +232,16 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
           <div
             class={
               compact()
-                ? "grid min-h-0 gap-3 xl:grid-rows-[minmax(0,1fr)_240px]"
-                : "grid min-h-0 gap-4 xl:grid-rows-[minmax(0,1fr)_260px]"
+                ? "grid min-h-0 gap-1.5 grid-rows-[minmax(0,1fr)_176px] xl:grid-rows-[minmax(0,1fr)_188px]"
+                : "grid min-h-0 gap-2 grid-rows-[minmax(0,1fr)_188px] xl:grid-rows-[minmax(0,1fr)_208px]"
             }
           >
-            <div class="flex min-h-0 flex-col overflow-hidden rounded-3xl border border-zinc-200 bg-[linear-gradient(180deg,rgba(248,250,252,0.9),rgba(255,255,255,0.95))]">
-              <div class="flex flex-wrap items-center justify-between gap-3 border-b border-zinc-200 px-4 py-3">
+            <div class="flex min-h-0 flex-col overflow-hidden rounded-[18px] border border-zinc-200 bg-[linear-gradient(180deg,rgba(248,250,252,0.9),rgba(255,255,255,0.95))]">
+              <div class="flex flex-wrap items-center justify-between gap-1.5 border-b border-zinc-200 px-2.5 py-2">
                 <div>
-                  <p class="text-sm font-semibold text-zinc-800">记录列表</p>
+                  <p class="text-xs font-semibold text-zinc-800 sm:text-sm">
+                    记录列表
+                  </p>
                   <p class="mt-1 text-xs text-zinc-500">
                     {props.selectedCourse
                       ? props.selectedCourse.name
@@ -221,10 +256,10 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                   </Show>
                 </div>
 
-                <div class="flex flex-wrap items-center gap-2">
+                <div class="flex flex-wrap items-center gap-1.5">
                   <button
                     type="button"
-                    class="rounded-xl border border-zinc-200 bg-white px-3 py-2 text-sm text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
+                    class="rounded-lg border border-zinc-200 bg-white px-2 py-1 text-xs text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
                     disabled={
                       !props.selectedCourse || props.isRefreshingRecords
                     }
@@ -234,7 +269,7 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                   </button>
 
                   <select
-                    class="rounded-xl border border-zinc-200 bg-white px-3 py-2 text-sm transition outline-none focus:border-cyan-400"
+                    class="rounded-lg border border-zinc-200 bg-white px-2 py-1 text-xs transition outline-none focus:border-cyan-400"
                     value={props.recordType}
                     onChange={(event) =>
                       props.onChangeRecordType(
@@ -252,7 +287,7 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                   <Show when={props.recordType === ""}>
                     <button
                       type="button"
-                      class="rounded-xl border border-cyan-200 bg-cyan-50 px-3 py-2 text-sm text-cyan-700 transition hover:bg-cyan-100"
+                      class="rounded-lg border border-cyan-200 bg-cyan-50 px-2 py-1 text-xs text-cyan-700 transition hover:bg-cyan-100"
                       onClick={
                         props.isRunningStudy
                           ? props.onStopStudy
@@ -264,12 +299,40 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                   </Show>
                 </div>
               </div>
+              <div class="flex flex-wrap items-center justify-between gap-1.5 border-b border-zinc-200/70 px-2.5 py-1.5">
+                <div class="flex flex-wrap items-center gap-1.5 text-xs">
+                  <button
+                    type="button"
+                    class={recordFilter() === "all" ? "rounded-full border border-zinc-200 bg-zinc-100 px-2.5 py-0.5 font-medium text-zinc-700" : "rounded-full border border-zinc-200 bg-white px-2.5 py-0.5 text-zinc-600 transition hover:bg-zinc-100"}
+                    onClick={() => setRecordFilter("all")}
+                  >
+                    全部 {recordStats().total}
+                  </button>
+                  <button
+                    type="button"
+                    class={recordFilter() === "unlearned" ? "rounded-full border border-amber-200 bg-amber-100 px-2.5 py-0.5 font-medium text-amber-700" : "rounded-full border border-amber-200 bg-white px-2.5 py-0.5 text-amber-700 transition hover:bg-amber-50"}
+                    onClick={() => setRecordFilter("unlearned")}
+                  >
+                    未学 {recordStats().unlearned}
+                  </button>
+                  <button
+                    type="button"
+                    class={recordFilter() === "learned" ? "rounded-full border border-emerald-200 bg-emerald-100 px-2.5 py-0.5 font-medium text-emerald-700" : "rounded-full border border-emerald-200 bg-white px-2.5 py-0.5 text-emerald-700 transition hover:bg-emerald-50"}
+                    onClick={() => setRecordFilter("learned")}
+                  >
+                    已学 {recordStats().learned}
+                  </button>
+                </div>
+                <p class="text-xs text-zinc-500">
+                  当前筛选：{recordFilter() === "all" ? "全部" : recordFilter() === "unlearned" ? "未学" : "已学"}
+                </p>
+              </div>
 
               <div
                 class={
                   compact()
-                    ? "min-h-0 flex-1 overflow-y-auto p-2.5"
-                    : "min-h-0 flex-1 overflow-y-auto p-3"
+                    ? "min-h-0 flex-1 overflow-y-auto p-1.5"
+                    : "min-h-0 flex-1 overflow-y-auto p-2"
                 }
               >
                 <Show when={props.recordsLoading}>
@@ -297,56 +360,78 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                     !props.recordsLoading &&
                     !props.recordError &&
                     props.selectedCourse &&
-                    props.records.length === 0
+                    filteredRecords().length === 0
                   }
                 >
-                  <EmptyState>当前分类下没有记录。</EmptyState>
+                  <EmptyState>
+                    {props.records.length === 0
+                      ? "当前分类下没有记录。"
+                      : "当前筛选下没有记录。"}
+                  </EmptyState>
                 </Show>
 
-                <div class="flex flex-col gap-3">
-                  <For each={props.records}>
-                    {(record) => (
-                      <div
-                        class={
-                          compact()
-                            ? "rounded-[20px] border border-zinc-200 bg-white px-3 py-3 shadow-sm"
-                            : "rounded-[22px] border border-zinc-200 bg-white px-4 py-4 shadow-sm"
-                        }
-                      >
-                        <div class="flex flex-wrap items-start justify-between gap-3">
-                          <div class="min-w-0 flex-1">
-                            <p class="truncate text-base font-semibold text-zinc-900">
-                              {record.name}
-                            </p>
-                            <p class="mt-1 text-sm text-zinc-500">
-                              记录 ID：{record.id} | 章节：{record.chapterId}
-                            </p>
-                          </div>
-                          <span class="rounded-full bg-zinc-100 px-3 py-1 text-xs font-medium text-zinc-700">
-                            {props.renderRecordState(record.state) ||
-                              "未知状态"}
-                          </span>
-                        </div>
+                <div class={compact() ? "flex flex-col gap-1.5" : "flex flex-col gap-2"}>
+                  <For each={filteredRecords()}>
+                    {(record) => {
+                      const stateText =
+                        props.renderRecordState(record.state) || "未知状态";
+                      const learned =
+                        stateText.includes("已学") || record.progress === "1.00";
 
-                        <div class="mt-4 grid gap-2 text-sm text-zinc-600 md:grid-cols-2 xl:grid-cols-3">
-                          <p>视频时长：{record.videoDuration}</p>
-                          <p>学习秒数：{record.duration}</p>
-                          <p>学习进度：{record.progress}</p>
-                          <p>开始时间：{record.beginTime || "-"}</p>
-                          <p>完成时间：{record.finalTime || "-"}</p>
-                          <p>查看次数：{record.viewCount}</p>
+                      return (
+                        <div
+                          class={
+                            learned
+                              ? compact()
+                                ? "rounded-[16px] border border-emerald-200 bg-emerald-50/35 px-2 py-1.5 shadow-sm"
+                                : "rounded-[18px] border border-emerald-200 bg-emerald-50/35 px-2.5 py-2.5 shadow-sm"
+                              : compact()
+                                ? "rounded-[16px] border border-amber-200 bg-amber-50/35 px-2 py-1.5 shadow-sm"
+                                : "rounded-[18px] border border-amber-200 bg-amber-50/35 px-2.5 py-2.5 shadow-sm"
+                          }
+                        >
+                          <div class="flex flex-wrap items-start justify-between gap-2">
+                            <div class="min-w-0 flex-1">
+                              <p class="truncate text-sm font-semibold text-zinc-900">
+                                {record.name}
+                              </p>
+                              <p class="mt-1 text-xs text-zinc-500">
+                                记录 ID：{record.id} | 章节：{record.chapterId}
+                              </p>
+                            </div>
+                            <span
+                              class={
+                                learned
+                                  ? "rounded-full bg-emerald-100 px-3 py-1 text-xs font-medium text-emerald-700"
+                                  : "rounded-full bg-amber-100 px-3 py-1 text-xs font-medium text-amber-700"
+                              }
+                            >
+                              {stateText}
+                            </span>
+                          </div>
+
+                          <div class="mt-2 grid gap-1 text-xs text-zinc-600 md:grid-cols-2 xl:grid-cols-3">
+                            <p>视频时长：{record.videoDuration}</p>
+                            <p>学习秒数：{record.duration}</p>
+                            <p>学习进度：{record.progress}</p>
+                            <p>开始时间：{record.beginTime || "-"}</p>
+                            <p>完成时间：{record.finalTime || "-"}</p>
+                            <p>查看次数：{record.viewCount}</p>
+                          </div>
                         </div>
-                      </div>
-                    )}
+                      );
+                    }}
                   </For>
                 </div>
               </div>
             </div>
 
-            <div class="flex min-h-0 flex-col overflow-hidden rounded-3xl border border-zinc-200 bg-white">
-              <div class="flex items-center justify-between border-b border-zinc-200 px-4 py-3">
+            <div class="flex min-h-0 flex-col overflow-hidden rounded-[18px] border border-zinc-200 bg-white">
+              <div class="flex items-center justify-between border-b border-zinc-200 px-2.5 py-2">
                 <div>
-                  <p class="text-sm font-semibold text-zinc-800">运行日志</p>
+                  <p class="text-xs font-semibold text-zinc-800 sm:text-sm">
+                    运行日志
+                  </p>
                   <p class="mt-1 text-xs text-zinc-500">
                     输出会自动滚动到最新位置
                   </p>
@@ -355,7 +440,7 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                 <div class="flex items-center gap-2">
                   <button
                     type="button"
-                    class="rounded-lg border border-zinc-200 px-3 py-1 text-xs text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
+                    class="rounded-lg border border-zinc-200 px-2 py-0.5 text-xs text-zinc-700 transition hover:bg-zinc-100 disabled:cursor-not-allowed disabled:opacity-60"
                     disabled={props.isRefreshingLogs}
                     onClick={props.onRefreshLogs}
                   >
@@ -363,7 +448,7 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
                   </button>
                   <button
                     type="button"
-                    class="rounded-lg border border-zinc-200 px-3 py-1 text-xs text-zinc-700 transition hover:bg-zinc-100"
+                    class="rounded-lg border border-zinc-200 px-2 py-0.5 text-xs text-zinc-700 transition hover:bg-zinc-100"
                     onClick={props.onClearLogs}
                   >
                     清空日志
@@ -373,13 +458,13 @@ const CourseWorkspace = (props: CourseWorkspaceProps) => {
 
               <div
                 ref={logContainerRef}
-                class="min-h-0 flex-1 overflow-y-auto bg-zinc-950 px-4 py-3 font-mono text-emerald-300"
+                class="min-h-0 flex-1 overflow-y-auto bg-zinc-950 px-2 py-1.5 font-mono text-emerald-300"
               >
                 <Show
                   when={props.studyLogs.length > 0}
                   fallback={<p>暂无日志输出。</p>}
                 >
-                  <div class="space-y-2">
+                  <div class="space-y-1">
                     <For each={props.studyLogs}>
                       {(log, index) => (
                         <p>
diff --git a/src/pages/accounts/Account.tsx b/src/pages/accounts/Account.tsx
index c7a3264..5b2308a 100644
--- a/src/pages/accounts/Account.tsx
+++ b/src/pages/accounts/Account.tsx
@@ -13,9 +13,11 @@ import AddAccountDialog, {
 import CourseWorkspace from "~/components/account/CourseWorkspace";
 import {
   createWkClient,
+  hostApi,
   loginApi,
   runStudyQueue,
   type CourseKind,
+  type RecordItem,
   type RecordType,
 } from "~/service/wk";
 import { setUnauthorizedHandler } from "~/service/http";
@@ -47,13 +49,32 @@ const createDefaultForm = (host: string): LoginForm => ({
 const stripHtml = (value: string) => value.replace(/<[^>]+>/g, "").trim();
 
 const parseDurationToSeconds = (value: string) => {
-  const parts = value.split(":").map(Number);
-  if (parts.length !== 3 || parts.some((part) => Number.isNaN(part))) {
+  const input = value.trim();
+  if (!input) {
     return 0;
   }
 
-  const [hours, minutes, seconds] = parts;
-  return hours * 3600 + minutes * 60 + seconds;
+  const numeric = Number(input);
+  if (!Number.isNaN(numeric)) {
+    return Math.max(0, Math.floor(numeric));
+  }
+
+  const parts = input.split(":").map(Number);
+  if (parts.some((part) => Number.isNaN(part))) {
+    return 0;
+  }
+
+  if (parts.length === 3) {
+    const [hours, minutes, seconds] = parts;
+    return hours * 3600 + minutes * 60 + seconds;
+  }
+
+  if (parts.length === 2) {
+    const [minutes, seconds] = parts;
+    return minutes * 60 + seconds;
+  }
+
+  return 0;
 };
 
 const createRecordCacheKey = (
@@ -61,6 +82,8 @@ const createRecordCacheKey = (
   courseId: number,
   recordType: RecordType,
 ) => `${accountId}::${courseId}::${recordType || "course"}`;
+const STUDY_HEARTBEAT_CHECK_INTERVAL_MS = 5000;
+const STUDY_HEARTBEAT_TIMEOUT_MS = 45000;
 
 const Account = () => {
   const [storeState, setStoreState] = createSignal(accountStore.getState());
@@ -80,8 +103,67 @@ const Account = () => {
   const [isRefreshingRecords, setIsRefreshingRecords] = createSignal(false);
   const [isRefreshingCourses, setIsRefreshingCourses] = createSignal(false);
   const [isRefreshingLogs, setIsRefreshingLogs] = createSignal(false);
+  const [isLoadingRemoteHosts, setIsLoadingRemoteHosts] = createSignal(false);
   const [hasRestoredRecords, setHasRestoredRecords] = createSignal(false);
   const accountClients = new Map<string, ReturnType<typeof createWkClient>>();
+  let recordRequestToken = 0;
+
+  const touchStudyHeartbeat = (accountId: string) => {
+    accountStore.getState().touchStudyHeartbeat(accountId);
+  };
+  const clearStudyHeartbeat = (accountId: string) => {
+    accountStore.getState().clearStudyHeartbeat(accountId);
+  };
+  const runStudyHeartbeatWatchdog = () => {
+    const now = Date.now();
+    const snapshot = accountStore.getState();
+
+    for (const [accountId, running] of Object.entries(snapshot.runningStudyMap)) {
+      if (!running) {
+        continue;
+      }
+
+      const lastHeartbeat = snapshot.studyHeartbeatMap[accountId] ?? 0;
+      if (now - lastHeartbeat <= STUDY_HEARTBEAT_TIMEOUT_MS) {
+        continue;
+      }
+
+      snapshot.setAccountRunningStudy(accountId, false);
+      snapshot.clearStudyHeartbeat(accountId);
+      snapshot.appendStudyLog(
+        accountId,
+        `检测到刷课任务超时（超过 ${Math.floor(
+          STUDY_HEARTBEAT_TIMEOUT_MS / 1000,
+        )} 秒无活动），已自动重置状态`,
+      );
+    }
+  };
+
+  const loadRemoteHostsIfNeeded = async () => {
+    if (isLoadingRemoteHosts()) {
+      return;
+    }
+
+    if (settingsStore.getState().remoteHosts.length > 0) {
+      return;
+    }
+
+    setIsLoadingRemoteHosts(true);
+
+    try {
+      const res = await hostApi();
+      settingsStore.getState().setRemoteHosts(
+        res.data.list.map((item) => ({
+          label: item.name,
+          host: item.host,
+        })),
+      );
+    } catch {
+      // Ignore host bootstrap errors in account page to avoid blocking main flow.
+    } finally {
+      setIsLoadingRemoteHosts(false);
+    }
+  };
 
   onMount(() => {
     const unsubscribeAccount = accountStore.subscribe((state) => {
@@ -90,12 +172,19 @@ const Account = () => {
     const unsubscribeSettings = settingsStore.subscribe((state) => {
       setSettingsState(state);
     });
+    void loadRemoteHostsIfNeeded();
     setUnauthorizedHandler(reloginBySession);
+    runStudyHeartbeatWatchdog();
+    const heartbeatTimer = window.setInterval(
+      runStudyHeartbeatWatchdog,
+      STUDY_HEARTBEAT_CHECK_INTERVAL_MS,
+    );
 
     onCleanup(() => {
       unsubscribeAccount();
       unsubscribeSettings();
       setUnauthorizedHandler(null);
+      window.clearInterval(heartbeatTimer);
     });
   });
 
@@ -189,6 +278,12 @@ const Account = () => {
     accountStore.getState().appendStudyLog(targetAccountId, message);
   };
 
+  const cancelPendingRecordRequest = () => {
+    recordRequestToken += 1;
+    setRecordsLoading(false);
+    setIsRefreshingRecords(false);
+  };
+
   const getAccountClient = (accountId: string) => {
     const existingClient = accountClients.get(accountId);
     if (existingClient) {
@@ -313,6 +408,7 @@ const Account = () => {
   };
 
   const handleSelectAccount = (accountId: string) => {
+    cancelPendingRecordRequest();
     accountStore.getState().setSelectedAccountId(accountId);
     accountStore.getState().setSelectedCourseId(null);
     accountStore.getState().setRecords([]);
@@ -360,6 +456,7 @@ const Account = () => {
       setErrorMessage(message);
       accountStore.getState().setAccountCourses(accountId, []);
       if (accountStore.getState().selectedAccountId === accountId) {
+        cancelPendingRecordRequest();
         accountStore.getState().setSelectedCourseId(null);
         accountStore.getState().setRecords([]);
       }
@@ -437,36 +534,59 @@ const Account = () => {
     if (!account) {
       return;
     }
+    const requestToken = ++recordRequestToken;
+    const accountId = account.id;
 
     setRecordsLoading(true);
     setIsRefreshingRecords(true);
     setRecordError("");
 
     try {
-      const res = await getAccountClient(account.id).recordApi({
+      const res = await getAccountClient(accountId).recordApi({
         course_id: String(courseId),
         page: 0,
         record_type: nextRecordType,
       });
-      accountStore.getState().setRecords(res.data.list);
+      if (requestToken !== recordRequestToken) {
+        return;
+      }
+
+      const rawList = (res as { data?: { list?: unknown } })?.data?.list;
+      const list = (Array.isArray(rawList) ? rawList : []) as RecordItem[];
+      const snapshot = accountStore.getState();
+      if (
+        snapshot.selectedAccountId !== accountId ||
+        snapshot.selectedCourseId !== courseId ||
+        snapshot.recordType !== nextRecordType
+      ) {
+        return;
+      }
+
+      accountStore.getState().setRecords(list);
       accountStore
         .getState()
         .setRecordCache(
-          createRecordCacheKey(account.id, courseId, nextRecordType),
-          res.data.list,
+          createRecordCacheKey(accountId, courseId, nextRecordType),
+          list,
         );
     } catch (error) {
+      if (requestToken !== recordRequestToken) {
+        return;
+      }
       const message =
         error instanceof Error ? error.message : "获取记录失败，请稍后重试。";
       setRecordError(message);
       accountStore.getState().setRecords([]);
     } finally {
-      setRecordsLoading(false);
-      setIsRefreshingRecords(false);
+      if (requestToken === recordRequestToken) {
+        setRecordsLoading(false);
+        setIsRefreshingRecords(false);
+      }
     }
   };
 
   const handleSelectCourse = (courseId: number) => {
+    cancelPendingRecordRequest();
     accountStore.getState().setSelectedCourseId(courseId);
   };
 
@@ -507,18 +627,19 @@ const Account = () => {
     }
 
     const queueItems = records()
-      .filter((item) => item.progress !== "1.00")
       .map((item) => ({
         nodeId: item.id,
         name: item.name,
-        currentTime: Number(item.duration || 0),
+        currentTime: parseDurationToSeconds(item.duration),
         totalTime: parseDurationToSeconds(item.videoDuration),
         progress: item.progress,
         completed: stripHtml(item.state) === "已学",
-      }));
+      }))
+      .filter((item) => item.progress !== "1.00" && !item.completed);
 
     try {
       accountStore.getState().setAccountRunningStudy(account.id, true);
+      touchStudyHeartbeat(account.id);
       appendStudyLog(`开始刷课：${course.name}`, account.id);
       await runStudyQueue({
         accountId: account.id,
@@ -528,10 +649,14 @@ const Account = () => {
         client: getAccountClient(account.id),
         isRunningStudy: () =>
           !!accountStore.getState().runningStudyMap[account.id],
-        setIsRunningStudy: () =>
-          accountStore.getState().setAccountRunningStudy(account.id, false),
-        onLog: (message: string, accoundID: string) =>
-          appendStudyLog(message, accoundID),
+        setIsRunningStudy: () => {
+          accountStore.getState().setAccountRunningStudy(account.id, false);
+          clearStudyHeartbeat(account.id);
+        },
+        onLog: (message: string, accoundID: string) => {
+          touchStudyHeartbeat(accoundID);
+          appendStudyLog(message, accoundID);
+        },
       });
       if (accountStore.getState().runningStudyMap[account.id]) {
         appendStudyLog(`刷课完成：${course.name}`, account.id);
@@ -543,6 +668,7 @@ const Account = () => {
       setRecordError(message);
     } finally {
       accountStore.getState().setAccountRunningStudy(account.id, false);
+      clearStudyHeartbeat(account.id);
     }
   };
 
@@ -553,12 +679,14 @@ const Account = () => {
     }
 
     accountStore.getState().setAccountRunningStudy(account.id, false);
+    clearStudyHeartbeat(account.id);
     appendStudyLog(`已发送停止刷课指令：${account.user.name}`, account.id);
   };
 
   createEffect(
     on([selectedAccountId, courseKind], ([accountId, kind]) => {
       if (!accountId) {
+        cancelPendingRecordRequest();
         return;
       }
 
@@ -570,6 +698,7 @@ const Account = () => {
     on(
       [selectedAccountId, selectedCourseId, recordType],
       ([accountId, courseId, type]) => {
+        cancelPendingRecordRequest();
         if (!accountId || !courseId) {
           accountStore.getState().setRecords([]);
           return;
@@ -613,12 +742,12 @@ const Account = () => {
 
   return (
     <div class="flex h-full min-h-0 flex-col overflow-hidden">
-      <div class="flex shrink-0 items-center justify-between gap-3 rounded-[24px] border border-white/80 bg-[linear-gradient(135deg,rgba(236,254,255,0.95),rgba(255,255,255,0.92))] px-4 py-3 shadow-[0_18px_45px_-28px_rgba(8,145,178,0.35)]">
+      <div class="flex shrink-0 items-center justify-between gap-2.5 rounded-[22px] border border-white/80 bg-[linear-gradient(135deg,rgba(236,254,255,0.95),rgba(255,255,255,0.92))] px-3.5 py-2.5 shadow-[0_16px_40px_-28px_rgba(8,145,178,0.35)]">
         <div>
           <p class="text-xs font-medium tracking-[0.26em] text-cyan-700/75 uppercase">
             Account Center
           </p>
-          <h1 class="mt-1 text-xl font-semibold text-zinc-900 sm:text-2xl">
+          <h1 class="mt-1 text-lg font-semibold text-zinc-900 sm:text-xl">
             账号管理
           </h1>
           <p class="mt-0.5 text-xs text-zinc-500 sm:text-sm">
@@ -627,14 +756,14 @@ const Account = () => {
         </div>
 
         <button
-          class="rounded-xl bg-[linear-gradient(135deg,#06b6d4,#14b8a6)] px-3.5 py-2.5 text-sm font-medium text-white shadow-lg shadow-cyan-500/20 transition hover:-translate-y-px hover:shadow-cyan-500/30"
+          class="rounded-xl bg-[linear-gradient(135deg,#06b6d4,#14b8a6)] px-3 py-2 text-sm font-medium text-white shadow-lg shadow-cyan-500/20 transition hover:-translate-y-px hover:shadow-cyan-500/30"
           onClick={openDialog}
         >
           添加账号
         </button>
       </div>
 
-      <div class="mt-4 flex min-h-0 flex-1 flex-col gap-4 xl:flex-row">
+      <div class="mt-3 flex min-h-0 flex-1 flex-col gap-3 xl:flex-row">
         <AccountSidebar
           accounts={accounts()}
           selectedAccountId={selectedAccountId()}
@@ -682,6 +811,7 @@ const Account = () => {
             accountStore.getState().setRecordType(value)
           }
           onChangeCourseRecordType={(value) => {
+            cancelPendingRecordRequest();
             accountStore.getState().setCourseKind(value);
             accountStore.getState().setSelectedCourseId(null);
             accountStore.getState().setRecords([]);
diff --git a/src/pages/logs/Logs.tsx b/src/pages/logs/Logs.tsx
index 740fac0..f974b65 100644
--- a/src/pages/logs/Logs.tsx
+++ b/src/pages/logs/Logs.tsx
@@ -10,6 +10,17 @@ import {
 import { accountStore } from "~/store/account";
 import { settingsStore } from "~/store/settings";
 
+type LogRow = {
+  id: string;
+  accountId: string;
+  accountName: string;
+  host: string;
+  seq: number;
+  timestamp: string;
+  timestampValue: number;
+  content: string;
+};
+
 const extractTimestamp = (message: string) => {
   const match = message.match(/^\[(\d{2}:\d{2}:\d{2})\]\s*/);
   return match?.[1] ?? null;
@@ -25,7 +36,6 @@ const parseTimestampValue = (timestamp: string | null) => {
   }
 
   const [hours, minutes, seconds] = timestamp.split(":").map(Number);
-
   if ([hours, minutes, seconds].some((item) => Number.isNaN(item))) {
     return -1;
   }
@@ -33,6 +43,11 @@ const parseTimestampValue = (timestamp: string | null) => {
   return hours * 3600 + minutes * 60 + seconds;
 };
 
+const normalizeContent = (message: string) => {
+  const value = stripTimestamp(message).replace(/\s+/g, " ").trim();
+  return value || "-";
+};
+
 const Logs = () => {
   const [accountState, setAccountState] = createSignal(accountStore.getState());
   const [settingsState, setSettingsState] = createSignal(
@@ -66,75 +81,60 @@ const Logs = () => {
     ) as Record<string, { name: string; host: string }>;
   });
 
-  const allLogs = createMemo(() => {
-    return Object.entries(accountState().studyLogsMap)
-      .flatMap(([accountId, messages]) => {
+  const logRows = createMemo<LogRow[]>(() => {
+    const rows = Object.entries(accountState().studyLogsMap).flatMap(
+      ([accountId, messages]) => {
         const accountInfo = accountInfoMap()[accountId];
-        const accountName = accountInfo?.name ?? accountId;
-
         return messages.map((message, index) => {
           const timestamp = extractTimestamp(message);
-
           return {
             id: `${accountId}-${index}`,
             accountId,
-            accountName,
-            index: index + 1,
-            timestamp,
+            accountName: accountInfo?.name ?? accountId,
+            host: accountInfo?.host ?? "-",
+            seq: index + 1,
+            timestamp: timestamp ?? "--:--:--",
             timestampValue: parseTimestampValue(timestamp),
-            content: stripTimestamp(message),
-            raw: message,
+            content: normalizeContent(message),
           };
         });
-      })
-      .sort((left, right) => {
-        if (left.timestampValue !== right.timestampValue) {
-          return left.timestampValue - right.timestampValue;
-        }
-
-        if (left.index !== right.index) {
-          return left.index - right.index;
-        }
-
-        return left.accountId.localeCompare(right.accountId);
-      });
-  });
-
-  const accountSummaries = createMemo(() => {
-    const accountIds = Array.from(
-      new Set([
-        ...accountState().accounts.map((account) => account.id),
-        ...Object.keys(accountState().studyLogsMap),
-      ]),
+      },
     );
 
-    return accountIds.map((accountId) => {
-      const accountInfo = accountInfoMap()[accountId];
-      const logs = accountState().studyLogsMap[accountId] ?? [];
-      const latestMessage = logs[logs.length - 1] ?? "暂无日志";
+    return rows.sort((left, right) => {
+      const leftTs =
+        left.timestampValue >= 0 ? left.timestampValue : Number.MAX_SAFE_INTEGER;
+      const rightTs =
+        right.timestampValue >= 0
+          ? right.timestampValue
+          : Number.MAX_SAFE_INTEGER;
 
-      return {
-        id: accountId,
-        name: accountInfo?.name ?? accountId,
-        host: accountInfo?.host ?? "未知账号来源",
-        total: logs.length,
-        latestMessage: stripTimestamp(latestMessage),
-        latestTime: extractTimestamp(latestMessage),
-      };
+      if (leftTs !== rightTs) {
+        return leftTs - rightTs;
+      }
+      if (left.accountName !== right.accountName) {
+        return left.accountName.localeCompare(right.accountName, "zh-CN");
+      }
+      if (left.seq !== right.seq) {
+        return left.seq - right.seq;
+      }
+      return left.accountId.localeCompare(right.accountId);
     });
   });
 
-  const latestLog = createMemo(() => {
-    const logs = allLogs();
-    return logs.length > 0 ? logs[logs.length - 1] : null;
+  const totalAccountsWithLogs = createMemo(() => {
+    return Object.values(accountState().studyLogsMap).filter(
+      (messages) => messages.length > 0,
+    ).length;
   });
 
-  const totalAccountsWithLogs = createMemo(() => {
-    return accountSummaries().filter((item) => item.total > 0).length;
+  const latestLog = createMemo(() => {
+    const rows = logRows();
+    return rows.length > 0 ? rows[rows.length - 1] : null;
   });
 
   createEffect(() => {
-    allLogs().length;
+    logRows().length;
 
     if (!settingsState().autoScrollLogs) {
       return;
@@ -170,7 +170,7 @@ const Logs = () => {
               日志中心
             </h1>
             <p class="mt-1 text-xs leading-5 text-zinc-600 sm:text-sm">
-              聚合全部账号日志，优先把空间留给正文。
+              单行并列展示时间、账号、姓名与日志内容。
             </p>
           </div>
 
@@ -180,7 +180,7 @@ const Logs = () => {
                 TOTAL LOGS
               </span>
               <span class="text-sm font-semibold text-zinc-950">
-                {allLogs().length}
+                {logRows().length}
               </span>
             </div>
             <div class="flex items-center gap-2 rounded-full border border-white/80 bg-white/85 px-3 py-1.5 shadow-sm">
@@ -191,14 +191,11 @@ const Logs = () => {
                 {totalAccountsWithLogs()}
               </span>
             </div>
-            <div class="flex items-center gap-2 rounded-full border border-white/80 bg-white/85 px-3 py-1.5 shadow-sm">
-              <span class="text-[10px] tracking-[0.18em] text-zinc-400 uppercase">
-                AUTO SCROLL
-              </span>
-              <span class="text-sm font-medium text-zinc-900">
-                {settingsState().autoScrollLogs ? "跟随最新" : "手动查看"}
-              </span>
-            </div>
+            <Show when={latestLog()}>
+              <div class="rounded-full border border-white/80 bg-white/85 px-3 py-1.5 text-xs text-zinc-600 shadow-sm">
+                最新: {latestLog()?.timestamp} / {latestLog()?.accountName}
+              </div>
+            </Show>
             <button
               type="button"
               class="rounded-full border border-rose-200 bg-[linear-gradient(135deg,rgba(255,241,242,0.95),rgba(255,255,255,0.9))] px-3.5 py-1.5 text-sm font-medium text-rose-600 transition hover:-translate-y-px hover:bg-rose-50"
@@ -210,120 +207,73 @@ const Logs = () => {
         </div>
       </div>
 
-      <div class="flex min-h-0 flex-1 flex-col gap-3 overflow-y-auto px-3 py-3">
-        <section class="flex min-h-0 flex-col overflow-hidden rounded-[26px] border border-white/80 bg-[linear-gradient(180deg,rgba(255,255,255,0.92),rgba(248,250,252,0.9))] shadow-[0_18px_48px_-30px_rgba(15,23,42,0.24)]">
-          <div class="shrink-0 border-b border-zinc-200/80 px-4 py-3">
-            <p class="text-base font-semibold text-zinc-950">账号概览</p>
-            <p class="mt-1 text-xs text-zinc-500">最新输出与日志数量</p>
+      <section class="mt-3 flex min-h-0 flex-1 flex-col overflow-hidden rounded-[26px] border border-zinc-200/80 bg-[linear-gradient(180deg,rgba(11,18,32,0.98),rgba(10,10,16,1))] shadow-[0_24px_60px_-32px_rgba(15,23,42,0.45)]">
+        <div class="shrink-0 border-b border-white/10 px-4 py-3">
+          <div class="flex flex-wrap items-center gap-2 text-xs">
+            <span class="rounded-full border border-emerald-400/20 bg-emerald-400/10 px-3 py-1 text-emerald-200">
+              {settingsState().showLogTimestamps ? "显示时间" : "隐藏时间"}
+            </span>
+            <span class="rounded-full border border-white/10 bg-white/5 px-3 py-1 text-slate-300">
+              {settingsState().autoScrollLogs ? "自动滚动中" : "自动滚动关闭"}
+            </span>
           </div>
+        </div>
 
-          <div class="flex min-h-0 shrink-0 flex-row gap-3 space-y-2.5 overflow-y-auto px-3 py-3">
-            <For each={accountSummaries()}>
-              {(account) => (
-                <div class="rounded-2xl border border-zinc-200 bg-white p-4 transition hover:shadow-md">
-                  {/* 顶部 */}
-                  <div class="flex items-center justify-between">
-                    <div class="min-w-0">
-                      <p class="truncate text-sm font-semibold text-zinc-900">
-                        {account.name}
-                      </p>
-                      <p class="text-xs text-zinc-400">{account.host}</p>
-                    </div>
-
-                    <div class="rounded-full bg-amber-100 px-2.5 py-1 text-xs text-amber-700">
-                      {account.total}
-                    </div>
-                  </div>
-
-                  {/* 最新日志 */}
-                  <div class="mt-3 rounded-xl bg-zinc-50 p-3">
-                    <div class="flex justify-between text-[11px] text-zinc-400">
-                      <span>Latest</span>
-                      <span>{account.latestTime ?? "--:--"}</span>
-                    </div>
-
-                    <p class="mt-1 line-clamp-2 text-xs text-zinc-600">
-                      {account.latestMessage}
-                    </p>
-                  </div>
-                </div>
-              )}
-            </For>
-          </div>
-        </section>
-
-        <section class="flex min-h-0 flex-1 flex-col overflow-hidden rounded-[26px] border border-zinc-200/80 bg-[linear-gradient(180deg,rgba(11,18,32,0.98),rgba(10,10,16,1))] shadow-[0_24px_60px_-32px_rgba(15,23,42,0.45)]">
-          <div class="shrink-0 border-b border-white/10 px-4 py-3">
-            <div class="flex flex-row items-center justify-between gap-2">
-              <div>
-                <p class="text-base font-semibold text-slate-400">实时日志流</p>
-                <p class="mt-1 text-xs text-slate-400">
-                  保留关键信息，把更多高度让给正文
-                </p>
+        <div
+          ref={logContainerRef}
+          class="min-h-0 flex-1 overflow-auto px-3 pt-0 pb-3 font-mono text-emerald-200"
+        >
+          <Show
+            when={logRows().length > 0}
+            fallback={
+              <div class="flex h-full items-center justify-center rounded-[26px] border border-dashed border-white/10 bg-white/3 px-6 text-slate-500">
+                暂无日志输出
               </div>
-
-              <div class="flex flex-wrap items-center gap-2 text-xs">
-                <span class="rounded-full border border-emerald-400/20 bg-emerald-400/10 px-3 py-1 text-emerald-200">
-                  {settingsState().showLogTimestamps ? "显示时间" : "隐藏时间"}
-                </span>
-                <span class="rounded-full border border-white/10 bg-white/5 px-3 py-1 text-slate-300">
-                  {settingsState().autoScrollLogs
-                    ? "自动滚动中"
-                    : "自动滚动关闭"}
-                </span>
-                <Show when={latestLog()}>
-                  <span class="rounded-full border border-amber-400/20 bg-amber-400/10 px-3 py-1 text-amber-200">
-                    最近来源 {latestLog()?.accountName}
-                  </span>
-                </Show>
-              </div>
-            </div>
-          </div>
-
-          <div
-            ref={logContainerRef}
-            class="min-h-0 flex-1 overflow-y-auto px-4 py-3 font-mono text-emerald-200"
+            }
           >
-            <Show
-              when={allLogs().length > 0}
-              fallback={
-                <div class="flex h-full items-center justify-center rounded-[26px] border border-dashed border-white/10 bg-white/3 px-6 text-slate-500">
-                  暂无日志输出
-                </div>
-              }
-            >
-              <div class="space-y-1">
-                <For each={allLogs()}>
-                  {(log) => (
-                    <div class="rounded-lg px-3 py-2 transition hover:bg-white/4">
-                      {/* 头部 */}
-                      <div class="flex items-center justify-between text-[11px] text-slate-400">
-                        <div class="flex items-center gap-2">
-                          <span class="text-amber-300">{log.accountName}</span>
-                          <span>#{log.index}</span>
+            <div class="min-w-[980px]">
+              <div class="sticky top-0 z-20 grid grid-cols-[100px_140px_220px_180px_80px_minmax(320px,1fr)] gap-3 border-b border-white/10 bg-zinc-950 px-3 py-2 text-[11px] tracking-wide text-slate-300 uppercase shadow-[0_8px_16px_-12px_rgba(0,0,0,0.8)]">
+                <span>时间</span>
+                <span>姓名</span>
+                <span>账号</span>
+                <span>主机</span>
+                <span>序号</span>
+                <span>内容</span>
+              </div>
 
-                          <Show when={settingsState().showLogTimestamps}>
-                            <span class="text-emerald-300/80">
-                              {log.timestamp}
-                            </span>
-                          </Show>
-                        </div>
-
-                        <span class="text-slate-500">{log.accountId}</span>
-                      </div>
-
-                      {/* 内容 */}
-                      <p class="mt-1 text-sm leading-5 whitespace-pre-wrap text-emerald-200">
-                        {log.content}
-                      </p>
+              <div class="relative z-0">
+                <For each={logRows()}>
+                  {(row) => (
+                    <div class="grid grid-cols-[100px_140px_220px_180px_80px_minmax(320px,1fr)] items-center gap-3 border-b border-white/5 px-3 py-2 hover:bg-white/4">
+                      <span class="truncate text-emerald-300">
+                        {settingsState().showLogTimestamps
+                          ? row.timestamp
+                          : "--:--:--"}
+                      </span>
+                      <span
+                        class="truncate text-amber-200"
+                        title={row.accountName}
+                      >
+                        {row.accountName}
+                      </span>
+                      <span class="truncate text-slate-300" title={row.accountId}>
+                        {row.accountId}
+                      </span>
+                      <span class="truncate text-slate-400" title={row.host}>
+                        {row.host}
+                      </span>
+                      <span class="truncate text-cyan-200">#{row.seq}</span>
+                      <span class="truncate text-emerald-100" title={row.content}>
+                        {row.content}
+                      </span>
                     </div>
                   )}
                 </For>
               </div>
-            </Show>
-          </div>
-        </section>
-      </div>
+            </div>
+          </Show>
+        </div>
+      </section>
     </div>
   );
 };
diff --git a/src/service/http.ts b/src/service/http.ts
index b7f2ee2..63c5978 100644
--- a/src/service/http.ts
+++ b/src/service/http.ts
@@ -13,16 +13,40 @@ export type HttpClient = {
 };
 
 let unauthorizedHandler: UnauthorizedHandler | null = null;
+const reloginTaskMap = new Map<string, Promise<boolean>>();
 
 export const setUnauthorizedHandler = (handler: UnauthorizedHandler | null) => {
   unauthorizedHandler = handler;
 };
 
+const runUnauthorizedHandler = (sessionId: string) => {
+  const pendingTask = reloginTaskMap.get(sessionId);
+  if (pendingTask) {
+    return pendingTask;
+  }
+
+  const task = (async () => {
+    if (!unauthorizedHandler) {
+      return false;
+    }
+
+    try {
+      return await unauthorizedHandler(sessionId);
+    } finally {
+      reloginTaskMap.delete(sessionId);
+    }
+  })();
+
+  reloginTaskMap.set(sessionId, task);
+  return task;
+};
+
 export const createHttpClient = (
   resolveSessionId?: SessionResolver,
 ): HttpClient => {
   const instance = axios.create({
     baseURL: import.meta.env.VITE_BASE_URL,
+    timeout: 15000,
   });
 
   instance.interceptors.request.use((config: InternalAxiosRequestConfig) => {
@@ -52,7 +76,7 @@ export const createHttpClient = (
         !url.includes("/api/login")
       ) {
         config._retry = true;
-        const ok = await unauthorizedHandler(sessionId);
+        const ok = await runUnauthorizedHandler(sessionId);
 
         if (ok) {
           return instance.request(config);
diff --git a/src/service/update.ts b/src/service/update.ts
new file mode 100644
index 0000000..6839552
--- /dev/null
+++ b/src/service/update.ts
@@ -0,0 +1,302 @@
+export type ReleaseAsset = {
+  id: number;
+  name: string;
+  size: number;
+  download_count: number;
+  browser_download_url: string;
+};
+
+export type LatestRelease = {
+  id: number;
+  tag_name: string;
+  name: string;
+  body: string;
+  html_url: string;
+  published_at: string;
+  assets: ReleaseAsset[];
+};
+
+export type RuntimeOS = "windows" | "linux" | "darwin" | "unknown";
+export type RuntimeArch = "amd64" | "arm64" | "unknown";
+
+export type RuntimeTarget = {
+  os: RuntimeOS;
+  arch: RuntimeArch;
+};
+
+export const UPDATE_API_URL =
+  "https://gitea.kmux.cn/api/v1/repos/cqcst/wk-backend/releases/latest";
+export const RELEASES_PAGE_URL =
+  "https://gitea.kmux.cn/cqcst/wk-backend/releases";
+const RELEASE_HOST_ORIGIN = "https://gitea.kmux.cn";
+
+type UADataHighEntropy = {
+  architecture?: string;
+  bitness?: string;
+  platform?: string;
+};
+
+type UAData = {
+  platform?: string;
+  getHighEntropyValues?: (
+    hints: string[],
+  ) => Promise<UADataHighEntropy>;
+};
+
+const normalizeSemver = (value: string) => {
+  const match = value.match(/(\d+)(?:\.(\d+))?(?:\.(\d+))?(?:\.(\d+))?/);
+  if (!match) {
+    return null;
+  }
+
+  return [1, 2, 3, 4].map((index) => Number(match[index] ?? 0));
+};
+
+export const isRemoteVersionNewer = (currentVersion: string, tagName: string) => {
+  const current = normalizeSemver(currentVersion);
+  const remote = normalizeSemver(tagName);
+
+  if (!remote) {
+    return false;
+  }
+  if (!current) {
+    return true;
+  }
+
+  for (let i = 0; i < Math.max(current.length, remote.length); i += 1) {
+    const left = current[i] ?? 0;
+    const right = remote[i] ?? 0;
+    if (right > left) {
+      return true;
+    }
+    if (right < left) {
+      return false;
+    }
+  }
+
+  return false;
+};
+
+const detectOSFromString = (value: string) => {
+  const lower = value.toLowerCase();
+  if (lower.includes("win")) {
+    return "windows" as const;
+  }
+  if (lower.includes("mac") || lower.includes("darwin")) {
+    return "darwin" as const;
+  }
+  if (lower.includes("linux") || lower.includes("x11")) {
+    return "linux" as const;
+  }
+  return "unknown" as const;
+};
+
+const detectArchFromString = (value: string) => {
+  const lower = value.toLowerCase();
+  if (
+    lower.includes("arm64") ||
+    lower.includes("aarch64") ||
+    lower.includes("armv8")
+  ) {
+    return "arm64" as const;
+  }
+  if (
+    lower.includes("amd64") ||
+    lower.includes("x86_64") ||
+    lower.includes("x64") ||
+    lower.includes("win64") ||
+    lower.includes("x86-64")
+  ) {
+    return "amd64" as const;
+  }
+  return "unknown" as const;
+};
+
+export const detectRuntimeTarget = async (): Promise<RuntimeTarget> => {
+  const userAgent = navigator.userAgent || "";
+  const platform = navigator.platform || "";
+  const uaData = (navigator as Navigator & { userAgentData?: UAData })
+    .userAgentData;
+
+  let os = detectOSFromString(platform || userAgent);
+  let arch = detectArchFromString(userAgent);
+
+  if (uaData?.platform) {
+    const uaDataOs = detectOSFromString(uaData.platform);
+    if (uaDataOs !== "unknown") {
+      os = uaDataOs;
+    }
+  }
+
+  if (uaData?.getHighEntropyValues) {
+    try {
+      const high = await uaData.getHighEntropyValues([
+        "architecture",
+        "bitness",
+        "platform",
+      ]);
+      const highArch = detectArchFromString(
+        `${high.architecture ?? ""} ${high.bitness ?? ""}`,
+      );
+      if (highArch !== "unknown") {
+        arch = highArch;
+      } else if (high.architecture === "x86" && high.bitness === "64") {
+        arch = "amd64";
+      }
+
+      if (high.platform) {
+        const highOs = detectOSFromString(high.platform);
+        if (highOs !== "unknown") {
+          os = highOs;
+        }
+      }
+    } catch {
+      // Ignore UA high-entropy detection errors and keep fallbacks.
+    }
+  }
+
+  return { os, arch };
+};
+
+const assetMatchesOS = (name: string, os: RuntimeOS) => {
+  if (os === "windows") {
+    return /\bwindows\b|\bwin\b|\.exe$/.test(name);
+  }
+  if (os === "linux") {
+    return /\blinux\b/.test(name);
+  }
+  if (os === "darwin") {
+    return /\bdarwin\b|\bmac\b|\bmacos\b|\bosx\b/.test(name);
+  }
+  return false;
+};
+
+const assetMatchesArch = (name: string, arch: RuntimeArch) => {
+  if (arch === "amd64") {
+    return /\bamd64\b|\bx86_64\b|\bx64\b/.test(name);
+  }
+  if (arch === "arm64") {
+    return /\barm64\b|\baarch64\b/.test(name);
+  }
+  return false;
+};
+
+export const resolveAssetForRuntime = (
+  assets: ReleaseAsset[],
+  target: RuntimeTarget,
+) => {
+  if (target.os === "unknown") {
+    return null;
+  }
+
+  const mapped = assets.map((asset) => {
+    const lower = asset.name.toLowerCase();
+    const osScore = assetMatchesOS(lower, target.os) ? 2 : 0;
+    const archScore =
+      target.arch === "unknown"
+        ? 0
+        : assetMatchesArch(lower, target.arch)
+          ? 2
+          : 0;
+    const exactPenalty =
+      target.arch !== "unknown" && archScore === 0 ? -2 : 0;
+    return {
+      asset,
+      score: osScore + archScore + exactPenalty,
+    };
+  });
+
+  const matched = mapped
+    .filter((item) => item.score > 0)
+    .sort((left, right) => right.score - left.score);
+
+  return matched[0]?.asset ?? null;
+};
+
+const triggerBrowserDownload = (blob: Blob, filename: string) => {
+  const link = document.createElement("a");
+  const blobUrl = URL.createObjectURL(blob);
+  link.href = blobUrl;
+  link.download = filename;
+  document.body.appendChild(link);
+  link.click();
+  document.body.removeChild(link);
+  URL.revokeObjectURL(blobUrl);
+};
+
+export const fetchLatestRelease = async (signal?: AbortSignal) => {
+  const response = await fetch(UPDATE_API_URL, {
+    method: "GET",
+    headers: {
+      accept: "application/json",
+    },
+    signal,
+  });
+
+  if (!response.ok) {
+    throw new Error(`检查更新失败: HTTP ${response.status}`);
+  }
+
+  return (await response.json()) as LatestRelease;
+};
+
+export const downloadReleaseAsset = async (
+  asset: ReleaseAsset,
+  onProgress?: (progress: number) => void,
+) => {
+  const response = await fetch(asset.browser_download_url, {
+    method: "GET",
+  });
+
+  if (!response.ok) {
+    throw new Error(`下载失败: HTTP ${response.status}`);
+  }
+
+  const totalSize = Number(response.headers.get("content-length") ?? 0);
+  if (!response.body || !Number.isFinite(totalSize) || totalSize <= 0) {
+    const blob = await response.blob();
+    triggerBrowserDownload(blob, asset.name);
+    onProgress?.(100);
+    return;
+  }
+
+  const reader = response.body.getReader();
+  const chunks: Uint8Array[] = [];
+  let received = 0;
+
+  while (true) {
+    const { done, value } = await reader.read();
+    if (done) {
+      break;
+    }
+    if (!value) {
+      continue;
+    }
+
+    chunks.push(value);
+    received += value.length;
+    const progress = Math.min(99, Math.round((received / totalSize) * 100));
+    onProgress?.(progress);
+  }
+
+  const merged = new Uint8Array(received);
+  let offset = 0;
+  for (const chunk of chunks) {
+    merged.set(chunk, offset);
+    offset += chunk.length;
+  }
+
+  const blob = new Blob([merged.buffer]);
+  triggerBrowserDownload(blob, asset.name);
+  onProgress?.(100);
+};
+
+export const resolveReleaseLink = (url: string) => {
+  if (url.startsWith("http://") || url.startsWith("https://")) {
+    return url;
+  }
+  if (url.startsWith("/")) {
+    return `${RELEASE_HOST_ORIGIN}${url}`;
+  }
+  return `${RELEASE_HOST_ORIGIN}/${url}`;
+};
diff --git a/src/service/wk.ts b/src/service/wk.ts
index a467b17..8c84cc4 100644
--- a/src/service/wk.ts
+++ b/src/service/wk.ts
@@ -193,18 +193,32 @@ const sleep = (ms: number) => new Promise((res) => setTimeout(res, ms));
 
 export const runStudyQueue = async (_payload: StudyRunnerPayload) => {
   const stopFlag = _payload.isRunningStudy;
+  const stepSeconds = Math.max(1, Math.floor(_payload.intervalSeconds || 5));
+  const sleepMs = stepSeconds * 1000;
+  const maxRetryCount = 3;
+  const maxStudySubmitRetry = 3;
+  const studySubmitRetrySleepMs = 5000;
+
   for (const item of _payload.items) {
+    const learnedTime = Math.max(0, Math.floor(item.currentTime || 0));
+    const rawTotalTime = Math.max(0, Math.floor(item.totalTime || 0));
+    const totalTime = Math.max(0, rawTotalTime - learnedTime);
     let currentTime = 0;
     let count = 0;
     let study_id = 0;
-    let total = item.totalTime - item.currentTime;
+    let retryCount = 0;
 
-    while (currentTime <= total) {
+    if (totalTime <= 0) {
+      _payload.onLog?.(`跳过已完成节点: ${item.name}`, _payload.accountId);
+      continue;
+    }
+
+    while (currentTime <= totalTime) {
       if (!stopFlag()) {
         _payload.onLog?.("⛔ 已手动停止", _payload.accountId);
         return;
       }
-      const message = `[${item.name}]: ${currentTime}/${total}`;
+      const message = `[${item.name}]: ${currentTime}/${totalTime}`;
       _payload.onLog?.(message, _payload.accountId);
 
       try {
@@ -212,8 +226,69 @@ export const runStudyQueue = async (_payload: StudyRunnerPayload) => {
           node_id: item.nodeId,
           study_id: String(study_id),
           study_time: String(currentTime),
-          status: count === 0 ? 1 : currentTime >= total ? 3 : 2,
+          status: count === 0 ? 1 : currentTime >= totalTime ? 3 : 2,
         });
+        const submitMessage = String(resp.data.msg ?? "");
+        const isSubmitFailed =
+          submitMessage.includes("提交学时失败") || resp.data.status === false;
+
+        if (isSubmitFailed) {
+          let submitRetry = 0;
+          let fixedResp = resp;
+
+          while (submitRetry < maxStudySubmitRetry) {
+            submitRetry += 1;
+            _payload.onLog?.(
+              `⚠️ 提交学时失败，${submitRetry}/${maxStudySubmitRetry} 次重试后再提交: ${item.name}`,
+              _payload.accountId,
+            );
+            await sleep(studySubmitRetrySleepMs);
+
+            if (!stopFlag()) {
+              _payload.onLog?.("⛔ 已手动停止", _payload.accountId);
+              return;
+            }
+
+            fixedResp = await _payload.client.studyApi({
+              node_id: item.nodeId,
+              study_id: String(study_id),
+              study_time: String(currentTime),
+              status: count === 0 ? 1 : currentTime >= totalTime ? 3 : 2,
+            });
+
+            const nextMsg = String(fixedResp.data.msg ?? "");
+            const nextFailed =
+              nextMsg.includes("提交学时失败") || fixedResp.data.status === false;
+            if (!nextFailed) {
+              break;
+            }
+          }
+
+          const finalMsg = String(fixedResp.data.msg ?? "");
+          const stillFailed =
+            finalMsg.includes("提交学时失败") || fixedResp.data.status === false;
+          if (stillFailed) {
+            _payload.onLog?.(
+              `⛔ 提交学时连续重试 ${maxStudySubmitRetry} 次仍失败，停止刷课: ${item.name}`,
+              _payload.accountId,
+            );
+            _payload.setIsRunningStudy();
+            return;
+          }
+
+          study_id = fixedResp.data.studyId;
+          retryCount = 0;
+
+          if (currentTime === totalTime) {
+            break;
+          }
+
+          currentTime = Math.min(currentTime + stepSeconds, totalTime);
+          count++;
+          await sleep(sleepMs);
+          continue;
+        }
+
         if (resp.data.state != 0) {
           _payload.onLog?.(`⛔ 自动停止: ${resp.data.msg}`, _payload.accountId);
           _payload.setIsRunningStudy();
@@ -221,17 +296,29 @@ export const runStudyQueue = async (_payload: StudyRunnerPayload) => {
         }
 
         study_id = resp.data.studyId;
+        retryCount = 0;
 
-        if (currentTime === total) break;
+        if (currentTime === totalTime) {
+          break;
+        }
 
-        currentTime = Math.min(currentTime + 5, total);
+        currentTime = Math.min(currentTime + stepSeconds, totalTime);
         count++;
       } catch (error) {
+        retryCount += 1;
         const errorMessage = `请求失败: ${error instanceof Error ? error.message : String(error)}`;
         _payload.onLog?.(errorMessage, _payload.accountId);
+
+        if (retryCount >= maxRetryCount) {
+          _payload.onLog?.(
+            `⚠️ 连续失败 ${maxRetryCount} 次，跳过节点: ${item.name}`,
+            _payload.accountId,
+          );
+          break;
+        }
       }
 
-      await sleep(5000);
+      await sleep(sleepMs);
     }
   }
 };
diff --git a/src/store/account.ts b/src/store/account.ts
index d00bdb6..b24f540 100644
--- a/src/store/account.ts
+++ b/src/store/account.ts
@@ -19,6 +19,7 @@ const withLogTimestamp = (message: string) => {
 
   return `[${timestamp}] ${message}`;
 };
+const MAX_STUDY_LOGS_PER_ACCOUNT = 1000;
 
 export type AccountAuth = {
   password: string;
@@ -38,6 +39,45 @@ export type AccountItem = {
 
 export type RecordCacheMap = Record<string, RecordItem[]>;
 
+type PersistPreferences = {
+  persistAccounts: boolean;
+  persistRecords: boolean;
+  persistLogs: boolean;
+};
+
+const settingsStorageKey = "settings-storage";
+const defaultPersistPreferences: PersistPreferences = {
+  persistAccounts: true,
+  persistRecords: true,
+  persistLogs: true,
+};
+
+const resolvePersistPreferences = (): PersistPreferences => {
+  try {
+    const rawValue = localStorage.getItem(settingsStorageKey);
+    if (!rawValue) {
+      return defaultPersistPreferences;
+    }
+
+    const parsedValue = JSON.parse(rawValue) as {
+      state?: Partial<PersistPreferences>;
+    };
+    const persistedState = parsedValue?.state;
+
+    return {
+      persistAccounts:
+        persistedState?.persistAccounts ??
+        defaultPersistPreferences.persistAccounts,
+      persistRecords:
+        persistedState?.persistRecords ?? defaultPersistPreferences.persistRecords,
+      persistLogs:
+        persistedState?.persistLogs ?? defaultPersistPreferences.persistLogs,
+    };
+  } catch {
+    return defaultPersistPreferences;
+  }
+};
+
 type AccountState = {
   accounts: AccountItem[];
   selectedAccountId: string;
@@ -49,6 +89,7 @@ type AccountState = {
   recordCacheMap: RecordCacheMap;
   studyLogsMap: Record<string, string[]>;
   runningStudyMap: Record<string, boolean>;
+  studyHeartbeatMap: Record<string, number>;
   setSelectedAccountId: (accountId: string) => void;
   setExpandedAccountId: (accountId: string) => void;
   setSelectedCourseId: (courseId: number | null) => void;
@@ -57,6 +98,9 @@ type AccountState = {
   setRecords: (records: RecordItem[]) => void;
   setRecordCache: (cacheKey: string, records: RecordItem[]) => void;
   setAccountRunningStudy: (accountId: string, value: boolean) => void;
+  touchStudyHeartbeat: (accountId: string, timestamp?: number) => void;
+  clearStudyHeartbeat: (accountId: string) => void;
+  clearAllStudyHeartbeat: () => void;
   appendStudyLog: (accountId: string, message: string) => void;
   clearStudyLogs: (accountId: string) => void;
   clearAllStudyLogs: () => void;
@@ -78,6 +122,7 @@ export const accountStore = createStore<AccountState>()(
       recordCacheMap: {},
       studyLogsMap: {},
       runningStudyMap: {},
+      studyHeartbeatMap: {},
       setSelectedAccountId: (accountId) =>
         set({ selectedAccountId: accountId }),
       setExpandedAccountId: (accountId) =>
@@ -100,16 +145,39 @@ export const accountStore = createStore<AccountState>()(
             [accountId]: value,
           },
         })),
-      appendStudyLog: (accountId, message) =>
+      touchStudyHeartbeat: (accountId, timestamp) =>
         set((state) => ({
-          studyLogsMap: {
-            ...state.studyLogsMap,
-            [accountId]: [
-              ...(state.studyLogsMap[accountId] ?? []),
-              withLogTimestamp(message),
-            ],
+          studyHeartbeatMap: {
+            ...state.studyHeartbeatMap,
+            [accountId]: timestamp ?? Date.now(),
           },
         })),
+      clearStudyHeartbeat: (accountId) =>
+        set((state) => ({
+          studyHeartbeatMap: Object.fromEntries(
+            Object.entries(state.studyHeartbeatMap).filter(
+              ([key]) => key !== accountId,
+            ),
+          ),
+        })),
+      clearAllStudyHeartbeat: () =>
+        set({
+          studyHeartbeatMap: {},
+        }),
+      appendStudyLog: (accountId, message) =>
+        set((state) => {
+          const nextLogs = [
+            ...(state.studyLogsMap[accountId] ?? []),
+            withLogTimestamp(message),
+          ].slice(-MAX_STUDY_LOGS_PER_ACCOUNT);
+
+          return {
+            studyLogsMap: {
+              ...state.studyLogsMap,
+              [accountId]: nextLogs,
+            },
+          };
+        }),
       clearStudyLogs: (accountId) =>
         set((state) => ({
           studyLogsMap: {
@@ -171,24 +239,42 @@ export const accountStore = createStore<AccountState>()(
                 ([key]) => key !== accountId,
               ),
             ),
+            studyHeartbeatMap: Object.fromEntries(
+              Object.entries(state.studyHeartbeatMap).filter(
+                ([key]) => key !== accountId,
+              ),
+            ),
           };
         }),
     }),
     {
       name: "account-storage",
       storage: createJSONStorage(() => localStorage),
-      partialize: (state) => ({
-        accounts: state.accounts,
-        selectedAccountId: state.selectedAccountId,
-        expandedAccountId: state.expandedAccountId,
-        selectedCourseId: state.selectedCourseId,
-        courseKind: state.courseKind,
-        recordType: state.recordType,
-        records: state.records,
-        recordCacheMap: state.recordCacheMap,
-        studyLogsMap: state.studyLogsMap,
-        runningStudyMap: state.runningStudyMap,
-      }),
+      partialize: (state) => {
+        const preferences = resolvePersistPreferences();
+        const persistedState: Partial<AccountState> = {
+          courseKind: state.courseKind,
+          recordType: state.recordType,
+        };
+
+        if (preferences.persistAccounts) {
+          persistedState.accounts = state.accounts;
+          persistedState.selectedAccountId = state.selectedAccountId;
+          persistedState.expandedAccountId = state.expandedAccountId;
+          persistedState.selectedCourseId = state.selectedCourseId;
+        }
+
+        if (preferences.persistRecords) {
+          persistedState.records = state.records;
+          persistedState.recordCacheMap = state.recordCacheMap;
+        }
+
+        if (preferences.persistLogs) {
+          persistedState.studyLogsMap = state.studyLogsMap;
+        }
+
+        return persistedState;
+      },
     },
   ),
 );
diff --git a/src/store/settings.ts b/src/store/settings.ts
index 834f804..5ea7522 100644
--- a/src/store/settings.ts
+++ b/src/store/settings.ts
@@ -35,6 +35,38 @@ type SettingsState = {
 };
 
 const accountStorageKey = "account-storage";
+type PersistedStorage = {
+  state?: Record<string, unknown>;
+  version?: number;
+};
+
+const patchAccountStorage = (
+  patcher: (state: Record<string, unknown>) => Record<string, unknown>,
+) => {
+  const rawValue = localStorage.getItem(accountStorageKey);
+  if (!rawValue) {
+    return;
+  }
+
+  try {
+    const parsedValue = JSON.parse(rawValue) as PersistedStorage;
+    const currentState =
+      parsedValue.state && typeof parsedValue.state === "object"
+        ? parsedValue.state
+        : {};
+    const nextState = patcher(currentState);
+
+    localStorage.setItem(
+      accountStorageKey,
+      JSON.stringify({
+        ...parsedValue,
+        state: nextState,
+      }),
+    );
+  } catch {
+    localStorage.removeItem(accountStorageKey);
+  }
+};
 
 const uniqueHosts = (hosts: HostOption[]) => {
   const map = new Map<string, HostOption>();
@@ -74,26 +106,59 @@ export const settingsStore = createStore<SettingsState>()(
         if (section === "accounts") set({ persistAccounts: value });
         if (section === "records") set({ persistRecords: value });
         if (section === "logs") set({ persistLogs: value });
+
+        if (!value) {
+          queueMicrotask(() => get().clearPersistedSection(section));
+        }
       },
       clearPersistedSection: (section) => {
         if (section === "accounts") {
-          localStorage.removeItem(accountStorageKey);
+          patchAccountStorage((state) => {
+            const {
+              accounts,
+              selectedAccountId,
+              expandedAccountId,
+              selectedCourseId,
+              records,
+              recordCacheMap,
+              studyLogsMap,
+              runningStudyMap,
+              ...rest
+            } = state;
+            void accounts;
+            void selectedAccountId;
+            void expandedAccountId;
+            void selectedCourseId;
+            void records;
+            void recordCacheMap;
+            void studyLogsMap;
+            void runningStudyMap;
+            return rest;
+          });
         }
 
         if (section === "records") {
-          set({ persistRecords: false });
-          queueMicrotask(() => set({ persistRecords: true }));
+          patchAccountStorage((state) => {
+            const { records, recordCacheMap, selectedCourseId, ...rest } =
+              state;
+            void records;
+            void recordCacheMap;
+            void selectedCourseId;
+            return rest;
+          });
         }
 
         if (section === "logs") {
-          set({ persistLogs: false });
-          queueMicrotask(() => set({ persistLogs: true }));
+          patchAccountStorage((state) => {
+            const { studyLogsMap, runningStudyMap, ...rest } = state;
+            void studyLogsMap;
+            void runningStudyMap;
+            return rest;
+          });
         }
       },
       clearAllPersistedData: () => {
         localStorage.removeItem(accountStorageKey);
-        get().clearPersistedSection("records");
-        get().clearPersistedSection("logs");
       },
       setAutoScrollLogs: (value) => set({ autoScrollLogs: value }),
       setShowLogTimestamps: (value) => set({ showLogTimestamps: value }),
diff --git a/vite.config.ts b/vite.config.ts
index ba2b265..8fd6cff 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -10,4 +10,8 @@ export default defineConfig({
       "~": path.resolve(__dirname, "src"),
     },
   },
+
+  server: {
+    host: "local.kmux.cn",
+  },
 });