diff --git a/docs/design.md b/docs/design.md
index 67c0f37..df8c345 100644
--- a/docs/design.md
+++ b/docs/design.md
@@ -84,7 +84,9 @@ the dialog; the account grid remains the primary workspace.
 - After a verified switch, update the toolbar identity and active card directly.
   That state is the visible confirmation; do not insert a success banner above
   the account grid or reload the whole workspace before showing it. Other brief
-  success messages may float without moving the grid and dismiss themselves.
+  success and information messages use one compact floating notice without
+  moving the grid and dismiss themselves. Errors stay until dismissed. Focused
+  dialogs cover this notice; recovery and update actions use their own surfaces.
 - Opening a dialog moves keyboard focus inside it. Tab stays inside, and closing
   restores focus to the launching control. A dialog cannot be dismissed while
   its non-cancellable action is in progress.
@@ -111,7 +113,8 @@ the dialog; the account grid remains the primary workspace.
   account will be updated; a mismatched login changes no account.
 - Keep card content compact. Truncated account and workspace names expose their
   full value on hover; do not reserve empty vertical space for the old heading
-  reminder.
+  reminder. Quota reset timing shows only a short relative time in the card;
+  hover, keyboard focus, and assistive text provide the exact date and time.
 - Keep pasted credentials and API keys in transient, non-persistent inputs and
   clear them immediately after submission.
 - File import reads the selected path in Rust rather than copying file contents
diff --git a/src/App.test.tsx b/src/App.test.tsx
index 94112cf..4cda4a6 100644
--- a/src/App.test.tsx
+++ b/src/App.test.tsx
@@ -570,10 +570,61 @@ describe("GSwitch account workspace", () => {
     const card = (await screen.findByRole("heading", { name: "person@example.com" })).closest(".account-card");
     expect(card).toHaveTextContent("5 weeks");
     expect(card).toHaveTextContent("100%");
-    expect(card).toHaveTextContent("Resets");
+    const resetTime = card?.querySelector("time.quota-reset-time");
+    expect(resetTime).toHaveTextContent(/in \d+ days/);
+    expect(resetTime).toHaveAttribute("aria-label", expect.stringContaining("Resets"));
+    expect(resetTime).toHaveAttribute("data-full-time", expect.any(String));
+    expect(card).not.toHaveTextContent(/Resets \d/);
     expect(card).not.toHaveTextContent("5-hour");
     expect(card).not.toHaveTextContent("Reset time unavailable");
   });
+
+  it("shows a short Chinese reset time with keyboard access to the exact date", async () => {
+    Object.defineProperty(window.navigator, "language", { configurable: true, value: "zh-CN" });
+    const resetAt = Math.floor(Date.now() / 1000) + 5 * 60 * 60;
+    mocks.listAccounts.mockResolvedValue([chatAccount]);
+    mocks.accountQuota.mockResolvedValue({
+      account_id: chatAccount.id,
+      status: "fresh",
+      snapshot: {
+        fetched_at_unix_ms: Date.now(),
+        buckets: [{
+          limit_id: "codex",
+          kind: "codex",
+          windows: [{ kind: "five_hour", window_duration_mins: 300, remaining_percent: 50, used_percent: 50, resets_at: resetAt }],
+        }],
+      },
+    });
+    render(<App />);
+
+    const card = (await screen.findByRole("heading", { name: "person@example.com" })).closest(".account-card");
+    const resetTime = card?.querySelector("time.quota-reset-time");
+    expect(resetTime).toHaveTextContent("5小时后");
+    expect(resetTime).toHaveAttribute("aria-label", expect.stringContaining("重置于"));
+    expect(resetTime).toHaveAttribute("tabindex", "0");
+    expect(card).not.toHaveTextContent("重置于");
+  });
+
+  it("does not show a past reset time as a current countdown", async () => {
+    const resetAt = Math.floor(Date.now() / 1000) - 60;
+    mocks.listAccounts.mockResolvedValue([chatAccount]);
+    mocks.accountQuota.mockResolvedValue({
+      account_id: chatAccount.id,
+      status: "fresh",
+      snapshot: {
+        fetched_at_unix_ms: Date.now(),
+        buckets: [{
+          limit_id: "codex",
+          kind: "codex",
+          windows: [{ kind: "five_hour", window_duration_mins: 300, remaining_percent: 50, used_percent: 50, resets_at: resetAt }],
+        }],
+      },
+    });
+    render(<App />);
+
+    const card = (await screen.findByRole("heading", { name: "person@example.com" })).closest(".account-card");
+    expect(card?.querySelector("time.quota-reset-time")).toHaveTextContent("Reset time passed");
+  });
   it("uses ChatGPT email as the primary identity and workspace as context", async () => {
     mocks.listAccounts.mockResolvedValue([chatAccount]);
     render(<App />);
diff --git a/src/App.tsx b/src/App.tsx
index 2e262cf..42245df 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -38,9 +38,11 @@ import {
 import { api, type UpdateDelivery } from "./api";
 import {
   createTranslator,
+  formatDateTime,
   formatDateTimeWithRelative,
   formatNumber,
   formatPercent,
+  formatRelativeTime,
   readLanguagePreference,
   resolveLocale,
   saveLanguagePreference,
@@ -438,6 +440,34 @@ function Modal({
   );
 }
 
+function QuotaResetTime({ timestamp, t, formatLocale }: {
+  timestamp: number;
+  t: Translator;
+  formatLocale: string;
+}) {
+  const [nowMs, setNowMs] = useState(Date.now);
+  useEffect(() => {
+    const interval = window.setInterval(() => setNowMs(Date.now()), 60_000);
+    return () => window.clearInterval(interval);
+  }, []);
+
+  const fullTime = formatDateTime(timestamp, formatLocale);
+  const passed = timestamp * 1000 <= nowMs;
+  return (
+    <time
+      aria-label={passed
+        ? `${t("quota.resetTimePassed")}: ${fullTime}`
+        : t("quota.resets", { time: fullTime })}
+      className="quota-reset-time"
+      data-full-time={fullTime}
+      dateTime={new Date(timestamp * 1000).toISOString()}
+      tabIndex={0}
+    >
+      {passed ? t("quota.resetTimePassed") : formatRelativeTime(timestamp, formatLocale, nowMs)}
+    </time>
+  );
+}
+
 function QuotaMeter({
   label,
   window,
@@ -502,7 +532,7 @@ function QuotaMeter({
           : status === "stale"
             ? t("quota.lastResultStale")
             : window?.resets_at
-              ? t("quota.resets", { time: formatDateTimeWithRelative(window.resets_at, formatLocale) })
+              ? <QuotaResetTime timestamp={window.resets_at} formatLocale={formatLocale} t={t} />
               : t("quota.resetTimeUnavailable")}
       </small>
     </div>
@@ -836,10 +866,10 @@ export default function App() {
   const t = useMemo(() => createTranslator(locale.language), [locale.language]);
 
   useEffect(() => {
-    if (notice?.kind !== "success") return;
+    if (!notice || notice.kind === "error") return;
     const timeout = window.setTimeout(() => {
       setNotice((current) => current === notice ? null : current);
-    }, 4000);
+    }, notice.kind === "success" ? 4000 : 6000);
     return () => window.clearTimeout(timeout);
   }, [notice]);
 
diff --git a/src/i18n.ts b/src/i18n.ts
index cce5ca9..a7b3ed0 100644
--- a/src/i18n.ts
+++ b/src/i18n.ts
@@ -56,6 +56,7 @@ const en = {
   "quota.notAvailable": "Not available",
   "quota.lastResultStale": "Last result is stale",
   "quota.resets": "Resets {time}",
+  "quota.resetTimePassed": "Reset time passed",
   "quota.resetTimeUnavailable": "Reset time unavailable",
   "quota.remaining": "{label} remaining",
   "quota.runningCodex": "Codex is running and its active account could not be identified. The last quota result is shown; try again when the account is available.",
@@ -393,6 +394,7 @@ const zhCN: Record<keyof typeof en, string> = {
   "quota.notAvailable": "不可用",
   "quota.lastResultStale": "上次结果已过期",
   "quota.resets": "重置于 {time}",
+  "quota.resetTimePassed": "重置时间已过",
   "quota.resetTimeUnavailable": "重置时间不可用",
   "quota.remaining": "{label} 剩余量",
   "quota.runningCodex": "Codex 正在运行，GSwitch 无法识别其当前账户。现显示上次额度结果；账户可用后请重试。",
diff --git a/src/styles.css b/src/styles.css
index 78dc632..7bb2e4f 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -329,11 +329,16 @@ summary:focus-visible {
 }
 
 .toast {
+  position: fixed;
+  bottom: 16px;
+  left: 16px;
+  z-index: 9;
   display: flex;
-  max-width: 760px;
+  width: min(380px, calc(100vw - 32px));
+  max-height: calc(100vh - 32px);
   align-items: center;
   gap: 9px;
-  margin: 0 0 18px;
+  overflow-y: auto;
   padding: 10px 12px 10px 13px;
   border: 1px solid var(--border);
   border-radius: 10px;
@@ -345,12 +350,6 @@ summary:focus-visible {
 }
 
 .toast-success {
-  position: fixed;
-  right: 20px;
-  bottom: 20px;
-  z-index: 20;
-  width: min(380px, calc(100vw - 40px));
-  margin: 0;
   border-color: color-mix(in srgb, var(--success) 30%, var(--border));
 }
 
@@ -918,6 +917,41 @@ summary:focus-visible {
   line-height: 1.35;
 }
 
+.quota-reset-time {
+  position: relative;
+  display: inline-block;
+  border-radius: 2px;
+  cursor: help;
+}
+
+.quota-reset-time:focus-visible {
+  outline: 2px solid var(--accent);
+  outline-offset: 2px;
+}
+
+.quota-reset-time::after {
+  position: absolute;
+  bottom: calc(100% + 6px);
+  left: 0;
+  z-index: 8;
+  width: max-content;
+  max-width: min(250px, 70vw);
+  padding: 7px 9px;
+  border: 1px solid var(--border);
+  border-radius: 7px;
+  color: var(--text);
+  background: var(--surface);
+  box-shadow: var(--shadow-soft);
+  content: attr(data-full-time);
+  opacity: 0;
+  pointer-events: none;
+  visibility: hidden;
+}
+
+.quota-meter:last-child .quota-reset-time::after { right: 0; left: auto; }
+.quota-reset-time:hover::after,
+.quota-reset-time:focus-visible::after { opacity: 1; visibility: visible; }
+
 .credit-row {
   min-height: 37px;
   justify-content: space-between;