diff --git a/api_access.py b/api_access.py
index ad27193..2df7024 100644
--- a/api_access.py
+++ b/api_access.py
@@ -13,6 +13,7 @@ MEMBER_GET_PATHS = frozenset(
         "/api/mentors/setup",
         "/api/mentors/messages",
         "/api/heaven/setup",
+        "/api/heaven/readings",
         "/api/assistant/messages",
     }
 )
@@ -60,4 +61,6 @@ def required_role(method: str, path: str) -> AccessRole:
             r"/api/screener/strategies/\d+", path
         ):
             return "member"
+        if re.fullmatch(r"/api/heaven/readings/\d+", path):
+            return "member"
     return "authenticated"
diff --git a/database.py b/database.py
index b086046..f0368ca 100644
--- a/database.py
+++ b/database.py
@@ -334,6 +334,24 @@ class ReviewDatabase:
 
                 CREATE INDEX IF NOT EXISTS idx_assistant_messages_user
                 ON assistant_messages(user_id, id DESC);
+
+                CREATE TABLE IF NOT EXISTS heaven_readings (
+                    id INTEGER PRIMARY KEY AUTOINCREMENT,
+                    user_id INTEGER NOT NULL,
+                    mode TEXT NOT NULL,
+                    context_date TEXT NOT NULL,
+                    subject TEXT NOT NULL,
+                    subject_detail TEXT NOT NULL DEFAULT '',
+                    answer TEXT NOT NULL,
+                    context_snapshot TEXT NOT NULL DEFAULT '{}',
+                    dedupe_key TEXT NOT NULL,
+                    created_at TEXT NOT NULL,
+                    UNIQUE(user_id, dedupe_key),
+                    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+                );
+
+                CREATE INDEX IF NOT EXISTS idx_heaven_readings_user_mode
+                ON heaven_readings(user_id, mode, context_date DESC, id DESC);
                 """
             )
             user_columns = {
@@ -1720,6 +1738,109 @@ class ReviewDatabase:
             )
             return int(cursor.rowcount)
 
+    @staticmethod
+    def _heaven_reading_dict(row: sqlite3.Row | None) -> dict[str, Any] | None:
+        if not row:
+            return None
+        return {
+            "id": int(row["id"]),
+            "mode": str(row["mode"]),
+            "context_date": str(row["context_date"]),
+            "subject": str(row["subject"]),
+            "subject_detail": str(row["subject_detail"]),
+            "answer": str(row["answer"]),
+            "created_at": str(row["created_at"]),
+        }
+
+    def save_heaven_reading(
+        self,
+        user_id: int,
+        mode: str,
+        context_date: str,
+        subject: str,
+        subject_detail: str,
+        answer: str,
+        context_snapshot: dict[str, Any],
+        dedupe_key: str,
+    ) -> dict[str, Any]:
+        now = datetime.now().astimezone().isoformat(timespec="seconds")
+        snapshot_json = json.dumps(
+            context_snapshot, ensure_ascii=False, separators=(",", ":")
+        )
+        with self.connect() as connection:
+            connection.execute(
+                """
+                INSERT INTO heaven_readings
+                    (user_id, mode, context_date, subject, subject_detail, answer,
+                     context_snapshot, dedupe_key, created_at)
+                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
+                ON CONFLICT(user_id, dedupe_key) DO NOTHING
+                """,
+                (
+                    int(user_id), mode, context_date, subject, subject_detail,
+                    answer, snapshot_json, dedupe_key, now,
+                ),
+            )
+            row = connection.execute(
+                """
+                SELECT id, mode, context_date, subject, subject_detail, answer, created_at
+                FROM heaven_readings WHERE user_id = ? AND dedupe_key = ?
+                """,
+                (int(user_id), dedupe_key),
+            ).fetchone()
+            connection.execute(
+                """
+                DELETE FROM heaven_readings
+                WHERE user_id = ? AND mode = ? AND id NOT IN (
+                    SELECT id FROM heaven_readings
+                    WHERE user_id = ? AND mode = ? ORDER BY id DESC LIMIT 100
+                )
+                """,
+                (int(user_id), mode, int(user_id), mode),
+            )
+        result = self._heaven_reading_dict(row)
+        if not result:
+            raise ValueError("解读记录保存失败。")
+        return result
+
+    def list_heaven_readings(
+        self,
+        user_id: int,
+        mode: str,
+        context_date: str = "",
+        limit: int = 100,
+    ) -> list[dict[str, Any]]:
+        clauses = ["user_id = ?", "mode = ?"]
+        parameters: list[Any] = [int(user_id), mode]
+        if context_date:
+            clauses.append("context_date = ?")
+            parameters.append(context_date)
+        parameters.append(max(1, min(100, int(limit))))
+        with self.connect() as connection:
+            rows = connection.execute(
+                f"""
+                SELECT id, mode, context_date, subject, subject_detail, answer, created_at
+                FROM heaven_readings WHERE {' AND '.join(clauses)}
+                ORDER BY context_date DESC, id DESC LIMIT ?
+                """,
+                parameters,
+            ).fetchall()
+        return [self._heaven_reading_dict(row) for row in rows if row]
+
+    def latest_heaven_reading(
+        self, user_id: int, mode: str, context_date: str = ""
+    ) -> dict[str, Any] | None:
+        items = self.list_heaven_readings(user_id, mode, context_date, 1)
+        return items[0] if items else None
+
+    def delete_heaven_reading(self, user_id: int, reading_id: int) -> bool:
+        with self.connect() as connection:
+            cursor = connection.execute(
+                "DELETE FROM heaven_readings WHERE id = ? AND user_id = ?",
+                (int(reading_id), int(user_id)),
+            )
+            return cursor.rowcount > 0
+
     def start_sync(self, trade_date: str, source: str) -> int:
         started_at = datetime.now().astimezone().isoformat(timespec="seconds")
         with self.connect() as connection:
diff --git a/server.py b/server.py
index c3f9e41..1194281 100644
--- a/server.py
+++ b/server.py
@@ -2023,6 +2023,9 @@ class DashboardService:
             "chart": chart,
             "field": field,
             "personal_profile": personal_profile,
+            "daily_fortune_reading": self.database.latest_heaven_reading(
+                self.current_user_id, "fortune", normalized_date
+            ),
             "sector_phase_overrides": [
                 {"name": name, "element": element}
                 for name, element in sector_phase_overrides.items()
@@ -2286,11 +2289,69 @@ class DashboardService:
             raise ValueError("六爻必须由六、七、八、九组成。") from exc
         return hexagram_from_lines(lines)
 
+    def heaven_readings(
+        self, mode: str, context_date: str = "", limit: int = 100
+    ) -> dict[str, Any]:
+        mode = str(mode or "").strip()
+        if mode not in {"trend", "fortune", "heart"}:
+            raise ValueError("解读记录类型不正确。")
+        normalized_date = normalize_date(context_date) if context_date else ""
+        return {
+            "mode": mode,
+            "items": self.database.list_heaven_readings(
+                self.current_user_id, mode, normalized_date, limit
+            ),
+        }
+
+    @staticmethod
+    def _heaven_reading_identity(
+        mode: str, context_date: str, context: dict[str, Any]
+    ) -> tuple[str, str]:
+        display_date = DashboardService._display_compact_date(context_date)
+        if mode == "trend":
+            stock = (context.get("selected_focus") or {}).get("stock") or {}
+            code = str(stock.get("code") or "").strip()
+            name = str(stock.get("name") or "").strip()
+            hexagram = context.get("hexagram") or {}
+            transformed = hexagram.get("transformed") or {}
+            subject = " ".join(item for item in (code, name) if item) or "观势"
+            detail = f"{display_date} · {hexagram.get('name') or '--'} → {transformed.get('name') or '--'}"
+            return subject, detail
+        if mode == "fortune":
+            field = context.get("five_phase_field") or {}
+            pillars = field.get("pillars") or {}
+            dominant = (field.get("balance") or [{}])[0]
+            subject = f"{display_date} 观气"
+            detail = (
+                f"{pillars.get('year') or '--'}年 · {pillars.get('month') or '--'}月 · "
+                f"{pillars.get('day') or '--'}日 · {dominant.get('element') or '--'}气偏显"
+            )
+            return subject, detail
+        hexagram = context.get("hexagram") or {}
+        transformed = hexagram.get("transformed") or {}
+        return (
+            f"{display_date} 观心",
+            f"{hexagram.get('name') or '--'} → {transformed.get('name') or '--'}",
+        )
+
     def heaven_interpret(self, payload: dict[str, Any]) -> dict[str, Any]:
         mode = str(payload.get("mode") or "").strip()
         if mode not in {"trend", "fortune", "heart"}:
             raise ValueError("问天解读模式不正确。")
         trade_date = normalize_date(str(payload.get("trade_date") or date.today().isoformat()))
+        if mode == "fortune":
+            existing = self.database.latest_heaven_reading(
+                self.current_user_id, "fortune", trade_date
+            )
+            if existing:
+                return {
+                    "answer": existing["answer"],
+                    "mode": mode,
+                    "compiler": "stored",
+                    "notice": "",
+                    "reading": existing,
+                    "reused": True,
+                }
         if mode in {"trend", "fortune"}:
             setup = self.heaven_setup(
                 trade_date,
@@ -2351,17 +2412,41 @@ class DashboardService:
                     "five_phase_field": fortune_field,
                     "personal_profile": personal_profile,
                 }
+                context_date = setup["calendar_date"]
+            if mode == "trend":
+                context_date = setup["trade_date"]
         else:
             context = {
                 "hexagram": self.heaven_hexagram(payload.get("lines")),
                 "ritual": "用户已完成30秒静心、六次三枚铜钱起卦，并在心中察看第一念。问题未输入。",
             }
+            context_date = trade_date
         result, compiler = self._call_heaven_agent(mode, context)
+        subject, subject_detail = self._heaven_reading_identity(
+            mode, context_date, context
+        )
+        dedupe_key = (
+            f"fortune:{context_date}"
+            if mode == "fortune"
+            else f"{mode}:{context_date}:{secrets.token_urlsafe(12)}"
+        )
+        reading = self.database.save_heaven_reading(
+            self.current_user_id,
+            mode,
+            context_date,
+            subject,
+            subject_detail,
+            str(result.get("answer") or ""),
+            context,
+            dedupe_key,
+        )
         return {
             **result,
             "mode": mode,
             "compiler": compiler,
             "notice": "智能解读已自动切换可用服务。" if compiler == "fallback" else "",
+            "reading": reading,
+            "reused": False,
         }
 
     def _call_heaven_agent(self, mode: str, context: dict[str, Any]) -> tuple[dict[str, Any], str]:
@@ -3704,6 +3789,19 @@ class RequestHandler(BaseHTTPRequestHandler):
             except ValueError as exc:
                 self.send_json({"error": str(exc)}, HTTPStatus.BAD_REQUEST)
             return
+        if parsed.path == "/api/heaven/readings":
+            query = parse_qs(parsed.query)
+            try:
+                self.send_json(
+                    SERVICE.heaven_readings(
+                        query.get("mode", [""])[0],
+                        query.get("context_date", [""])[0],
+                        int(query.get("limit", ["100"])[0]),
+                    )
+                )
+            except (TypeError, ValueError) as exc:
+                self.send_json({"error": str(exc)}, HTTPStatus.BAD_REQUEST)
+            return
         if parsed.path == "/api/heaven/setup":
             query = parse_qs(parsed.query)
             trade_date = query.get("trade_date", [date.today().isoformat()])[0]
@@ -3891,6 +3989,13 @@ class RequestHandler(BaseHTTPRequestHandler):
                 {"ok": True, **SERVICE.delete_trade_entry(int(trade_match.group(1)))}
             )
             return
+        heaven_reading_match = re.fullmatch(r"/api/heaven/readings/(\d+)", parsed.path)
+        if heaven_reading_match:
+            deleted = SERVICE.database.delete_heaven_reading(
+                SERVICE.current_user_id, int(heaven_reading_match.group(1))
+            )
+            self.send_json({"ok": True, "deleted": deleted})
+            return
         sector_phase_match = re.fullmatch(r"/api/heaven/sector-phases/(.+)", parsed.path)
         if sector_phase_match:
             name = unquote(sector_phase_match.group(1)).strip()
diff --git a/static/app.js b/static/app.js
index 17476a0..0614c7a 100644
--- a/static/app.js
+++ b/static/app.js
@@ -67,6 +67,12 @@ const state = {
   personalField: null,
   heavenPanel: "trend",
   heavenInterpretations: { trend: "", fortune: "", heart: "" },
+  heavenReadingMode: "trend",
+  heavenReadingTab: "current",
+  heavenReadingHistory: { trend: [], fortune: [], heart: [] },
+  heavenReadingSelectedId: 0,
+  heavenReadingLoading: false,
+  heavenReadingError: "",
   heartStage: "intro",
   heartTimer: null,
   heartSeconds: 30,
@@ -98,6 +104,7 @@ const elements = {
   tradeLogDialog: document.querySelector("#tradeLogDialog"),
   alertsDialog: document.querySelector("#alertsDialog"),
   assistantDialog: document.querySelector("#assistantDialog"),
+  heavenReadingDialog: document.querySelector("#heavenReadingDialog"),
   globalSearchDialog: document.querySelector("#globalSearchDialog"),
   globalSearchInput: document.querySelector("#globalSearchInput"),
   globalSearchResults: document.querySelector("#globalSearchResults"),
@@ -554,6 +561,8 @@ function bindEvents() {
   });
   document.querySelector("#interpretTrendButton").addEventListener("click", () => interpretHeaven("trend"));
   document.querySelector("#interpretFortuneButton").addEventListener("click", () => interpretHeaven("fortune"));
+  document.querySelector("#historyTrendButton").addEventListener("click", () => openHeavenHistory("trend"));
+  document.querySelector("#historyFortuneButton").addEventListener("click", () => openHeavenHistory("fortune"));
   document.querySelector("#qiObservationDate").addEventListener("change", () => {
     state.personalField = null;
     state.heavenManualData = null;
@@ -572,10 +581,18 @@ function bindEvents() {
   document.querySelector("#startBreathingButton").addEventListener("click", startHeartBreathing);
   document.querySelector("#beginCastingButton").addEventListener("click", beginHeartCasting);
   document.querySelector("#heartSoundToggle").addEventListener("click", toggleHeartSound);
+  document.querySelector("#historyHeartButton").addEventListener("click", () => openHeavenHistory("heart"));
   initializeHeartCoinHold();
   initializeHeartLineInspection();
   document.querySelector("#interpretHeartButton").addEventListener("click", () => interpretHeaven("heart"));
+  document.querySelector("#viewHeartReadingButton").addEventListener("click", () => openHeavenReading("heart"));
   document.querySelector("#restartHeartButton").addEventListener("click", resetHeartRitual);
+  document.querySelector("#closeHeavenReadingDialog").addEventListener("click", () => elements.heavenReadingDialog.close());
+  document.querySelectorAll("[data-heaven-reading-tab]").forEach((button) => {
+    button.addEventListener("click", () => selectHeavenReadingTab(button.dataset.heavenReadingTab));
+  });
+  document.querySelector("#heavenReadingHistoryList").addEventListener("click", handleHeavenHistorySelection);
+  document.querySelector("#heavenReadingHistoryDetail").addEventListener("click", handleHeavenHistoryAction);
   document.querySelectorAll("[data-heart-return]").forEach((button) => {
     button.addEventListener("click", resetHeartRitual);
   });
@@ -2225,6 +2242,7 @@ async function loadHeavenSetup(force = false, sector = "", stockCode = "") {
     payload.requestedDate = requestedDate;
     payload.requestedKey = requestedKey;
     state.heavenSetup = payload;
+    state.heavenInterpretations.fortune = payload.daily_fortune_reading || "";
     state.heavenManualData = Object.keys(payload.chart?.manual_data || {}).length
       ? payload.chart.manual_data
       : null;
@@ -3095,12 +3113,159 @@ function hexagramLineGraphic(value) {
   `;
 }
 
+const HEAVEN_READING_META = {
+  trend: { panel: "观势", action: "解势", done: "查看解势", status: "势已成", loading: "正在合参卦势" },
+  fortune: { panel: "观气", action: "解运", done: "已解运", status: "气已定", loading: "正在推演气机" },
+  heart: { panel: "观心", action: "我已察念，开始解卦", done: "查看解卦", status: "卦已解", loading: "正在整理卦辞" },
+};
+
+function heavenReadingMeta(mode = state.heavenReadingMode) {
+  return HEAVEN_READING_META[mode] || HEAVEN_READING_META.trend;
+}
+
+function openHeavenReading(mode, options = {}) {
+  state.heavenReadingMode = mode;
+  state.heavenReadingTab = "current";
+  state.heavenReadingError = options.error || "";
+  state.heavenReadingLoading = Object.hasOwn(options, "loading")
+    ? Boolean(options.loading)
+    : false;
+  renderHeavenReadingDialog();
+  if (!elements.heavenReadingDialog.open) elements.heavenReadingDialog.showModal();
+  requestAnimationFrame(() => document.querySelector("#closeHeavenReadingDialog").focus());
+}
+
+async function openHeavenHistory(mode) {
+  state.heavenReadingMode = mode;
+  state.heavenReadingTab = "history";
+  state.heavenReadingSelectedId = 0;
+  renderHeavenReadingDialog();
+  if (!elements.heavenReadingDialog.open) elements.heavenReadingDialog.showModal();
+  await loadHeavenReadingHistory(mode);
+}
+
+function selectHeavenReadingTab(tab) {
+  state.heavenReadingTab = tab === "history" ? "history" : "current";
+  renderHeavenReadingDialog();
+  if (state.heavenReadingTab === "history") loadHeavenReadingHistory(state.heavenReadingMode);
+}
+
+async function loadHeavenReadingHistory(mode) {
+  const list = document.querySelector("#heavenReadingHistoryList");
+  list.innerHTML = '<div class="empty-state">正在读取历史记录</div>';
+  try {
+    const query = new URLSearchParams({ mode, limit: "100" });
+    const payload = await apiRequest(`/api/heaven/readings?${query}`);
+    state.heavenReadingHistory[mode] = payload.items || [];
+    if (!state.heavenReadingHistory[mode].some((item) => number(item.id) === state.heavenReadingSelectedId)) {
+      state.heavenReadingSelectedId = number(state.heavenReadingHistory[mode][0]?.id);
+    }
+    renderHeavenReadingHistory();
+  } catch (error) {
+    list.innerHTML = `<div class="empty-state">${escapeHtml(error.message || "历史记录加载失败")}</div>`;
+  }
+}
+
+function renderHeavenReadingDialog() {
+  const meta = heavenReadingMeta();
+  setText("heavenReadingEyebrow", `问天 · ${meta.panel}`);
+  setText("heavenReadingDialogTitle", state.heavenReadingTab === "history" ? "历史记录" : meta.status);
+  document.querySelectorAll("[data-heaven-reading-tab]").forEach((button) => {
+    const active = button.dataset.heavenReadingTab === state.heavenReadingTab;
+    button.classList.toggle("active", active);
+    button.setAttribute("aria-selected", String(active));
+  });
+  document.querySelector("#heavenReadingCurrent").hidden = state.heavenReadingTab !== "current";
+  document.querySelector("#heavenReadingHistory").hidden = state.heavenReadingTab !== "history";
+  if (state.heavenReadingTab === "current") renderHeavenReadingCurrent();
+  else renderHeavenReadingHistory();
+  refreshIcons();
+}
+
+function renderHeavenReadingCurrent() {
+  const reading = state.heavenInterpretations[state.heavenReadingMode];
+  const loading = document.querySelector("#heavenReadingLoading");
+  const empty = document.querySelector("#heavenReadingEmpty");
+  const result = document.querySelector("#heavenReadingResult");
+  const error = document.querySelector("#heavenReadingError");
+  loading.hidden = !state.heavenReadingLoading;
+  setText("heavenReadingLoadingTitle", heavenReadingMeta().loading);
+  error.hidden = !state.heavenReadingError;
+  error.textContent = state.heavenReadingError;
+  result.hidden = state.heavenReadingLoading || !reading;
+  empty.hidden = state.heavenReadingLoading || Boolean(reading) || Boolean(state.heavenReadingError);
+  if (!reading || state.heavenReadingLoading) return;
+  setText("heavenReadingResultStatus", heavenReadingMeta().status);
+  setText("heavenReadingSubject", reading.subject || `${heavenReadingMeta().panel}解读`);
+  setText("heavenReadingSubjectDetail", reading.subject_detail || displayCompactDate(reading.context_date || ""));
+  setText("heavenReadingCreatedAt", reading.created_at ? formatTimestamp(reading.created_at) : "刚刚完成");
+  document.querySelector("#heavenReadingAnswer").innerHTML = formatMentorAnswer(reading.answer || "");
+}
+
+function renderHeavenReadingHistory() {
+  const mode = state.heavenReadingMode;
+  const items = state.heavenReadingHistory[mode] || [];
+  setText("heavenReadingHistoryTitle", `${heavenReadingMeta(mode).panel}记录`);
+  setText("heavenReadingHistoryCount", `${items.length} 条`);
+  const list = document.querySelector("#heavenReadingHistoryList");
+  list.innerHTML = items.map((item) => `
+    <button class="heaven-reading-history-item ${number(item.id) === state.heavenReadingSelectedId ? "active" : ""}" type="button" data-heaven-reading-id="${number(item.id)}">
+      <span>${escapeHtml(item.subject)}</span>
+      <small>${escapeHtml(item.subject_detail || displayCompactDate(item.context_date))}</small>
+      <time>${formatTimestamp(item.created_at)}</time>
+    </button>
+  `).join("") || '<div class="empty-state">暂无历史解读</div>';
+  const selected = items.find((item) => number(item.id) === state.heavenReadingSelectedId);
+  const detail = document.querySelector("#heavenReadingHistoryDetail");
+  detail.innerHTML = selected ? `
+    <header><div><span>${escapeHtml(heavenReadingMeta(mode).status)}</span><h3>${escapeHtml(selected.subject)}</h3></div><time>${formatTimestamp(selected.created_at)}</time></header>
+    <p>${escapeHtml(selected.subject_detail || displayCompactDate(selected.context_date))}</p>
+    <div class="heaven-reading-answer">${formatMentorAnswer(selected.answer || "")}</div>
+    <footer><button class="button" type="button" data-delete-heaven-reading="${number(selected.id)}"><i data-lucide="trash-2"></i><span>删除记录</span></button></footer>
+  ` : '<div class="empty-state">选择一条记录查看完整解读</div>';
+  refreshIcons();
+}
+
+function handleHeavenHistorySelection(event) {
+  const button = event.target.closest("[data-heaven-reading-id]");
+  if (!button) return;
+  state.heavenReadingSelectedId = number(button.dataset.heavenReadingId);
+  renderHeavenReadingHistory();
+}
+
+async function handleHeavenHistoryAction(event) {
+  const button = event.target.closest("[data-delete-heaven-reading]");
+  if (!button || !window.confirm("确定删除这条解读记录吗？")) return;
+  const id = number(button.dataset.deleteHeavenReading);
+  try {
+    await apiRequest(`/api/heaven/readings/${id}`, "DELETE");
+    const mode = state.heavenReadingMode;
+    state.heavenReadingHistory[mode] = (state.heavenReadingHistory[mode] || []).filter((item) => number(item.id) !== id);
+    if (number(state.heavenInterpretations[mode]?.id) === id) {
+      state.heavenInterpretations[mode] = "";
+      if (mode === "fortune" && state.heavenSetup) state.heavenSetup.daily_fortune_reading = null;
+      updateHeavenInterpretationControls();
+    }
+    state.heavenReadingSelectedId = number(state.heavenReadingHistory[mode][0]?.id);
+    renderHeavenReadingHistory();
+  } catch (error) {
+    showToast(error.message || "解读记录删除失败");
+  }
+}
+
 async function interpretHeaven(mode) {
+  const existing = state.heavenInterpretations[mode];
+  if (existing) {
+    openHeavenReading(mode, { loading: false });
+    return;
+  }
   const button = document.querySelector(mode === "trend" ? "#interpretTrendButton" : mode === "fortune" ? "#interpretFortuneButton" : "#interpretHeartButton");
   if (button.disabled) return;
-  button.disabled = true;
-  const originalText = button.textContent;
-  button.textContent = mode === "trend" ? "正在观势" : mode === "fortune" ? "正在察运" : "正在解卦";
+  state.heavenReadingMode = mode;
+  state.heavenReadingLoading = true;
+  state.heavenReadingError = "";
+  openHeavenReading(mode, { loading: true });
+  updateHeavenInterpretationControls();
   hideHeavenNotice();
   try {
     const payload = {
@@ -3112,10 +3277,15 @@ async function interpretHeaven(mode) {
     if (mode === "trend" && state.heavenManualData) payload.manual_data = state.heavenManualData;
     if (mode === "heart") payload.lines = state.heartLines;
     const result = await apiRequest("/api/heaven/interpret", "POST", payload);
-    state.heavenInterpretations[mode] = {
+    state.heavenInterpretations[mode] = result.reading || {
       answer: result.answer,
-      meta: mode === "trend" ? "观势已成" : mode === "fortune" ? "观气已成" : "解卦已成",
+      subject: `${heavenReadingMeta(mode).panel}解读`,
+      context_date: payload.trade_date,
+      created_at: new Date().toISOString(),
     };
+    state.heavenReadingHistory[mode] = [];
+    state.heavenReadingLoading = false;
+    renderHeavenReadingDialog();
     if (result.notice) showHeavenNotice(result.notice);
     if (mode === "heart") {
       if (await transitionHeartStage("interpretation")) await playHeartReadSequence();
@@ -3123,23 +3293,33 @@ async function interpretHeaven(mode) {
       renderHeavenInterpretation(mode, state.heavenInterpretations[mode]);
     }
   } catch (error) {
-    showHeavenNotice(error.message || "问天解读失败");
-    showToast(error.message || "问天解读失败");
+    state.heavenReadingLoading = false;
+    state.heavenReadingError = error.message || "问天解读失败";
+    renderHeavenReadingDialog();
+    showHeavenNotice(state.heavenReadingError);
+    showToast(state.heavenReadingError);
   } finally {
-    button.disabled = false;
-    button.textContent = originalText;
+    state.heavenReadingLoading = false;
+    updateHeavenInterpretationControls();
   }
 }
 
-function renderHeavenInterpretation(mode, result) {
-  const container = document.querySelector(`#${mode}Interpretation`);
-  if (!result) {
-    container.hidden = true;
-    container.innerHTML = "";
-    return;
-  }
-  container.hidden = false;
-  container.innerHTML = `<div>${formatMentorAnswer(result.answer)}</div><small>${escapeHtml(result.meta)}</small>`;
+function updateHeavenInterpretationControls() {
+  const loading = state.heavenReadingLoading;
+  const trendButton = document.querySelector("#interpretTrendButton");
+  const fortuneButton = document.querySelector("#interpretFortuneButton");
+  const heartButton = document.querySelector("#interpretHeartButton");
+  trendButton.disabled = loading || !state.heavenSetup?.chart?.available;
+  fortuneButton.disabled = loading || !state.heavenSetup?.field;
+  heartButton.disabled = loading || state.heartLines.length !== 6;
+  trendButton.textContent = loading && state.heavenReadingMode === "trend" ? "正在观势" : state.heavenInterpretations.trend ? HEAVEN_READING_META.trend.done : HEAVEN_READING_META.trend.action;
+  fortuneButton.textContent = loading && state.heavenReadingMode === "fortune" ? "正在察运" : state.heavenInterpretations.fortune ? HEAVEN_READING_META.fortune.done : HEAVEN_READING_META.fortune.action;
+  heartButton.textContent = loading && state.heavenReadingMode === "heart" ? "正在解卦" : state.heavenInterpretations.heart ? HEAVEN_READING_META.heart.done : HEAVEN_READING_META.heart.action;
+  document.querySelector("#viewHeartReadingButton").disabled = !state.heavenInterpretations.heart;
+}
+
+function renderHeavenInterpretation() {
+  updateHeavenInterpretationControls();
 }
 
 function initializeHeartAtmosphere() {
@@ -3455,6 +3635,7 @@ async function finalizeHeartHexagram() {
     const payload = await apiRequest("/api/heaven/hexagram", "POST", { lines: state.heartLines });
     if (stageToken !== state.heartStageToken || state.heartStage !== "casting") return;
     state.heartHexagram = payload.hexagram;
+    updateHeavenInterpretationControls();
     document.querySelector(".heart-hexagram-shell")?.classList.add("is-complete");
     setText("castingPrompt", "卦成了");
     heartSound.chime(660);
@@ -3658,6 +3839,7 @@ async function resetHeartRitual() {
   state.heartThrows = [];
   state.heartHexagram = null;
   state.heavenInterpretations.heart = "";
+  updateHeavenInterpretationControls();
   state.heartRevealToken += 1;
   heartCastingBusy = false;
   resetHeartCoins();
diff --git a/static/index.html b/static/index.html
index 2866792..322f75f 100644
--- a/static/index.html
+++ b/static/index.html
@@ -425,6 +425,7 @@
             </div>
           </div>
           <button id="loadHeavenSelectionButton" class="button" type="button">载入</button>
+          <button id="historyTrendButton" class="button" type="button"><i data-lucide="history"></i><span>历史记录</span></button>
           <button id="interpretTrendButton" class="button primary" type="button" disabled>解势</button>
         </div>
         <div id="heavenTrendEmpty" class="heaven-trend-empty" role="status">请输入股票代码或股票名称</div>
@@ -478,7 +479,6 @@
             </div>
           </form>
         </section>
-        <section id="trendInterpretation" class="heaven-interpretation" hidden></section>
       </section>
 
       <section id="heavenFortunePanel" class="heaven-panel">
@@ -486,6 +486,7 @@
           <div class="fortune-calendar-heading"><span id="fortuneLunarDate" class="metric-label">--</span><h3 id="fortunePillars">--</h3></div>
           <div class="fortune-heading-actions">
             <label class="qi-time-field"><span>观测日期</span><input id="qiObservationDate" type="date"></label>
+            <button id="historyFortuneButton" class="button" type="button"><i data-lucide="history"></i><span>历史记录</span></button>
             <button id="interpretFortuneButton" class="button primary" type="button">解运</button>
           </div>
         </div>
@@ -518,7 +519,6 @@
             <div><span><i data-lucide="shield-check"></i>风险与制衡</span><strong id="humanBalanceActions">--</strong></div>
           </div>
         </section>
-        <section id="fortuneInterpretation" class="heaven-interpretation fortune-interpretation" hidden></section>
         <section class="personal-fortune-panel">
           <div class="workspace-heading"><h3>个人影响</h3><span>日主、十神喜恶、五行喜忌与当日作用</span></div>
           <div id="personalProfileEmpty" class="personal-profile-empty">
@@ -568,6 +568,9 @@
         <button id="heartSoundToggle" class="heart-sound-toggle" type="button" aria-pressed="false" aria-label="开启观心声音">
           <i data-lucide="volume-x"></i><span>静音</span>
         </button>
+        <button id="historyHeartButton" class="heart-history-button" type="button" aria-label="查看观心历史记录">
+          <i data-lucide="history"></i><span>历史记录</span>
+        </button>
         <div id="heartRitualCurtain" class="heart-ritual-curtain" aria-hidden="true">
           <i class="heart-daybreak-dark"></i><strong>观 心</strong><span>心静，而后问</span>
         </div>
@@ -649,14 +652,13 @@
         <div id="heartInterpretationStage" class="heart-stage">
           <div class="heart-interpretation-heading">
             <div><span class="heart-stage-index">观心 · 五</span><h3 id="heartReadTitle">解卦</h3><small id="heartReadChange">--</small></div>
-            <button id="restartHeartButton" class="button" type="button">重新观心</button>
+            <div class="heart-read-actions"><button id="viewHeartReadingButton" class="button primary" type="button">查看解卦</button><button id="restartHeartButton" class="button" type="button">重新观心</button></div>
           </div>
           <p id="heartReadGuaci" class="heart-read-guaci">--</p>
           <div class="heart-read-layout">
             <div id="heartReadLines" class="heart-read-lines"></div>
             <div id="heartReadTexts" class="heart-read-texts"></div>
           </div>
-          <section id="heartInterpretation" class="heaven-interpretation heart-read-interpretation"></section>
           <p class="heart-read-motto">一念既察，卦只是镜。</p>
         </div>
         <p class="heaven-footnote heart-footnote">观心用于观察念头与执着，不用于替代交易计划或预测涨跌。</p>
@@ -982,6 +984,40 @@
     </form>
   </dialog>
 
+  <dialog id="heavenReadingDialog" class="settings-dialog heaven-reading-dialog" aria-labelledby="heavenReadingDialogTitle">
+    <div class="dialog-header">
+      <div><span id="heavenReadingEyebrow" class="dialog-eyebrow">问天 · 观势</span><h2 id="heavenReadingDialogTitle">解读</h2></div>
+      <button id="closeHeavenReadingDialog" class="icon-button" type="button" aria-label="关闭" title="关闭"><i data-lucide="x"></i></button>
+    </div>
+    <div class="heaven-reading-tabs" role="tablist" aria-label="问天解读">
+      <button class="active" type="button" role="tab" data-heaven-reading-tab="current" aria-selected="true">本次解读</button>
+      <button type="button" role="tab" data-heaven-reading-tab="history" aria-selected="false">历史记录</button>
+    </div>
+    <section id="heavenReadingCurrent" class="heaven-reading-current" role="tabpanel">
+      <div id="heavenReadingLoading" class="heaven-reading-loading" hidden>
+        <span class="heaven-reading-mark" aria-hidden="true">观</span>
+        <strong id="heavenReadingLoadingTitle">正在合参诸象</strong>
+        <small>请稍候，结果生成后将在此呈现</small>
+      </div>
+      <div id="heavenReadingEmpty" class="empty-state">尚无本次解读</div>
+      <article id="heavenReadingResult" class="heaven-reading-result" hidden>
+        <header><div><span id="heavenReadingResultStatus">势已成</span><h3 id="heavenReadingSubject">--</h3></div><time id="heavenReadingCreatedAt">--</time></header>
+        <p id="heavenReadingSubjectDetail">--</p>
+        <div id="heavenReadingAnswer" class="heaven-reading-answer"></div>
+      </article>
+      <div id="heavenReadingError" class="inline-notice" hidden></div>
+    </section>
+    <section id="heavenReadingHistory" class="heaven-reading-history" role="tabpanel" hidden>
+      <div class="heaven-reading-history-list-wrap">
+        <div class="heaven-reading-history-heading"><strong id="heavenReadingHistoryTitle">观势记录</strong><span id="heavenReadingHistoryCount">0 条</span></div>
+        <div id="heavenReadingHistoryList" class="heaven-reading-history-list"></div>
+      </div>
+      <article id="heavenReadingHistoryDetail" class="heaven-reading-history-detail">
+        <div class="empty-state">选择一条记录查看完整解读</div>
+      </article>
+    </section>
+  </dialog>
+
   <div id="stockPreviewBackdrop" class="stock-preview-backdrop" hidden></div>
   <aside id="stockPreview" class="stock-preview" aria-label="个股行情预览" aria-live="polite" hidden>
     <header class="stock-preview-header">
diff --git a/static/styles.css b/static/styles.css
index 78e49ac..baa09d1 100644
--- a/static/styles.css
+++ b/static/styles.css
@@ -11604,3 +11604,115 @@ button.account-role-badge:focus-visible { outline: 2px solid var(--blue); outlin
   .assistant-stream-caret { animation: none; }
   .assistant-messages { scroll-behavior: auto; }
 }
+
+.heart-history-button {
+  min-height: 44px;
+  position: absolute;
+  top: 12px;
+  right: 102px;
+  z-index: 8;
+  display: inline-flex;
+  align-items: center;
+  gap: 7px;
+  padding: 0 12px;
+  border: 1px solid rgba(36, 40, 32, .18);
+  border-radius: 2px;
+  background: rgba(253, 252, 248, .92);
+  color: #62675f;
+  box-shadow: 0 4px 18px rgba(36, 40, 32, .06);
+  cursor: pointer;
+  font-family: var(--heaven-serif);
+  font-size: 11px;
+}
+.heart-history-button:hover,
+.heart-history-button:focus-visible { border-color: rgba(154, 91, 69, .58); color: #824a39; outline: none; }
+.heart-history-button .lucide { width: 15px; height: 15px; }
+.heart-read-actions { display: flex; gap: 8px; }
+
+.heaven-reading-dialog {
+  width: min(920px, calc(100vw - 32px));
+  max-height: min(820px, calc(100dvh - 32px));
+  overflow: hidden;
+  background: #fdfcf8;
+}
+.heaven-reading-tabs {
+  display: flex;
+  gap: 4px;
+  padding: 10px 18px;
+  border-bottom: 1px solid var(--border);
+}
+.heaven-reading-tabs button {
+  min-height: 34px;
+  padding: 0 12px;
+  border: 0;
+  border-bottom: 2px solid transparent;
+  background: transparent;
+  color: var(--text-secondary);
+  cursor: pointer;
+  font: inherit;
+  font-size: 12px;
+}
+.heaven-reading-tabs button.active { border-bottom-color: #9a5b45; color: #6f3f31; font-weight: 700; }
+.heaven-reading-tabs button:focus-visible { outline: 2px solid #9a5b45; outline-offset: 1px; }
+.heaven-reading-current { min-height: 430px; max-height: calc(100dvh - 170px); overflow-y: auto; padding: 24px 28px 30px; }
+.heaven-reading-loading { min-height: 360px; display: grid; place-content: center; justify-items: center; gap: 10px; text-align: center; }
+.heaven-reading-loading[hidden] { display: none; }
+.heaven-reading-mark {
+  width: 64px;
+  height: 64px;
+  display: grid;
+  place-items: center;
+  border: 1px solid rgba(154, 91, 69, .35);
+  border-radius: 50%;
+  color: #8b503e;
+  font-family: var(--heaven-serif);
+  font-size: 24px;
+  animation: heaven-reading-breathe 2.4s ease-in-out infinite;
+}
+@keyframes heaven-reading-breathe { 50% { opacity: .55; box-shadow: 0 0 0 10px rgba(154, 91, 69, .05); } }
+.heaven-reading-loading strong { margin-top: 8px; color: #343a35; font-family: var(--heaven-serif); font-size: 18px; letter-spacing: 0; }
+.heaven-reading-loading small { color: var(--text-secondary); }
+.heaven-reading-result > header,
+.heaven-reading-history-detail > header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; }
+.heaven-reading-result > header span,
+.heaven-reading-history-detail > header span { color: #9a5b45; font-family: var(--heaven-serif); font-size: 12px; font-weight: 700; }
+.heaven-reading-result h3,
+.heaven-reading-history-detail h3 { margin: 5px 0 0; color: #2d332e; font-family: var(--heaven-serif); font-size: 22px; font-weight: 600; letter-spacing: 0; }
+.heaven-reading-result time,
+.heaven-reading-history-detail time { color: var(--text-secondary); font-size: 11px; white-space: nowrap; }
+.heaven-reading-result > p,
+.heaven-reading-history-detail > p { margin: 12px 0 0; color: var(--text-secondary); font-size: 12px; }
+.heaven-reading-answer { margin-top: 24px; color: #303833; font-family: var(--heaven-serif); font-size: 15px; line-height: 1.95; }
+.heaven-reading-answer .mentor-answer-heading { color: #713f31; }
+.heaven-reading-history { min-height: 500px; max-height: calc(100dvh - 170px); display: grid; grid-template-columns: 270px minmax(0, 1fr); overflow: hidden; }
+.heaven-reading-history[hidden] { display: none; }
+.heaven-reading-history-list-wrap { min-width: 0; overflow-y: auto; border-right: 1px solid var(--border); background: rgba(246, 244, 237, .72); }
+.heaven-reading-history-heading { display: flex; justify-content: space-between; gap: 10px; padding: 15px 16px 10px; color: var(--text-secondary); font-size: 11px; }
+.heaven-reading-history-heading strong { color: var(--text); font-size: 13px; }
+.heaven-reading-history-list { display: grid; }
+.heaven-reading-history-item { display: grid; gap: 4px; width: 100%; padding: 13px 16px; border: 0; border-top: 1px solid var(--border); background: transparent; color: var(--text); cursor: pointer; text-align: left; }
+.heaven-reading-history-item:hover,
+.heaven-reading-history-item.active { background: #fff; box-shadow: inset 3px 0 #9a5b45; }
+.heaven-reading-history-item:focus-visible { outline: 2px solid #9a5b45; outline-offset: -2px; }
+.heaven-reading-history-item span { overflow: hidden; font-size: 13px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
+.heaven-reading-history-item small,
+.heaven-reading-history-item time { overflow: hidden; color: var(--text-secondary); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
+.heaven-reading-history-detail { min-width: 0; overflow-y: auto; padding: 24px 28px; }
+.heaven-reading-history-detail footer { display: flex; justify-content: flex-end; margin-top: 28px; padding-top: 14px; border-top: 1px solid var(--border); }
+
+@media (max-width: 720px) {
+  .heart-history-button { top: 8px; right: 60px; min-width: 42px; padding: 0 10px; }
+  .heart-history-button span { display: none; }
+  .heart-read-actions { flex-wrap: wrap; justify-content: flex-end; }
+  .heaven-reading-dialog { width: calc(100vw - 16px); max-height: calc(100dvh - 16px); margin: 8px auto; }
+  .heaven-reading-current { min-height: 360px; max-height: calc(100dvh - 150px); padding: 20px 17px 24px; }
+  .heaven-reading-history { min-height: 0; max-height: calc(100dvh - 150px); grid-template-columns: 1fr; overflow-y: auto; }
+  .heaven-reading-history-list-wrap { max-height: 210px; border-right: 0; border-bottom: 1px solid var(--border); }
+  .heaven-reading-history-detail { overflow: visible; padding: 20px 17px 24px; }
+  .heaven-reading-result > header,
+  .heaven-reading-history-detail > header { display: grid; }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .heaven-reading-mark { animation: none; }
+}
diff --git a/tests/e2e/app-shell.spec.js b/tests/e2e/app-shell.spec.js
index 50b746f..795cfd4 100644
--- a/tests/e2e/app-shell.spec.js
+++ b/tests/e2e/app-shell.spec.js
@@ -144,6 +144,19 @@ async function mockApplication(page, authSession = session()) {
         }],
         summary: { total: 1, observed: 1, t1_win_rate: 100, t5_win_rate: null, average_t5: null },
       };
+    } else if (url.pathname === "/api/heaven/readings") {
+      payload = {
+        mode: url.searchParams.get("mode") || "fortune",
+        items: [{
+          id: 31,
+          mode: "fortune",
+          context_date: "20260723",
+          subject: "2026-07-23 观气",
+          subject_detail: "丙午年 · 乙未月 · 己丑日 · 土气偏显",
+          answer: "三层气机已经合参，今日宜先定节奏，再看行动。",
+          created_at: "2026-07-23T09:12:00+08:00",
+        }],
+      };
     } else if (url.pathname === "/api/mentors/setup") payload = { trade_date: "20260722", mentors: [] };
     else if (url.pathname === "/api/heaven/setup") {
       await route.fulfill({ status: 503, contentType: "application/json", body: JSON.stringify({ error: "测试环境不加载问天数据" }) });
@@ -214,6 +227,37 @@ test("stock hover preview ignores the selected historical date", async ({ page }
   await expect(page.locator("#stockPreviewName")).toHaveText("Test Stock");
 });
 
+test("saved daily fortune opens in the reading dialog without regenerating", async ({ page }) => {
+  await mockApplication(page, session("user", true));
+  await page.goto("/index.html");
+  await page.locator('[data-view="heavenView"]').first().click();
+  await page.locator('[data-heaven-panel="fortune"]').click();
+  await page.evaluate(() => {
+    state.heavenSetup = { field: {}, chart: { available: true } };
+    state.heavenInterpretations.fortune = {
+      id: 31,
+      mode: "fortune",
+      context_date: "20260723",
+      subject: "2026-07-23 观气",
+      subject_detail: "丙午年 · 乙未月 · 己丑日 · 土气偏显",
+      answer: "三层气机已经合参，今日宜先定节奏，再看行动。",
+      created_at: "2026-07-23T09:12:00+08:00",
+    };
+    updateHeavenInterpretationControls();
+  });
+  await expect(page.locator("#interpretFortuneButton")).toHaveText("已解运");
+  const interpretRequests = [];
+  page.on("request", (request) => {
+    if (request.url().includes("/api/heaven/interpret")) interpretRequests.push(request.url());
+  });
+  await page.locator("#interpretFortuneButton").click();
+  await expect(page.locator("#heavenReadingDialog")).toBeVisible();
+  await expect(page.locator("#heavenReadingAnswer")).toContainText("今日宜先定节奏");
+  expect(interpretRequests).toHaveLength(0);
+  await page.locator('[data-heaven-reading-tab="history"]').click();
+  await expect(page.locator("#heavenReadingHistoryList .heaven-reading-history-item")).toHaveCount(1);
+});
+
 test("mobile shell stays within the viewport", async ({ page }) => {
   await page.setViewportSize({ width: 375, height: 812 });
   await mockApplication(page, session("user", true));
@@ -280,6 +324,21 @@ for (const viewport of [
     const dialogWidth = await page.locator("#tradeLogDialog").evaluate((dialog) => dialog.getBoundingClientRect().width);
     expect(dialogWidth).toBeLessThanOrEqual(viewport.width);
     await page.locator("#closeTradeLogDialog").click();
+    await page.evaluate(() => {
+      state.heavenInterpretations.fortune = {
+        id: 31,
+        subject: "2026-07-23 观气",
+        subject_detail: "丙午年 · 乙未月 · 己丑日",
+        answer: "当日解运结果",
+        context_date: "20260723",
+        created_at: "2026-07-23T09:12:00+08:00",
+      };
+      openHeavenReading("fortune", { loading: false });
+    });
+    await expect(page.locator("#heavenReadingDialog")).toBeVisible();
+    const readingWidth = await page.locator("#heavenReadingDialog").evaluate((dialog) => dialog.getBoundingClientRect().width);
+    expect(readingWidth).toBeLessThanOrEqual(viewport.width);
+    await page.locator("#closeHeavenReadingDialog").click();
   });
 }
 
diff --git a/tests/test_api_access.py b/tests/test_api_access.py
index dbf995b..76201cc 100644
--- a/tests/test_api_access.py
+++ b/tests/test_api_access.py
@@ -12,6 +12,7 @@ class ApiAccessPolicyTests(unittest.TestCase):
             ("GET", "/api/screener/tracking"): "member",
             ("GET", "/api/mentors/messages"): "member",
             ("GET", "/api/heaven/setup"): "member",
+            ("GET", "/api/heaven/readings"): "member",
             ("GET", "/api/assistant/messages"): "member",
             ("POST", "/api/screener/run"): "member",
             ("POST", "/api/screener/tracking/refresh"): "member",
@@ -21,6 +22,7 @@ class ApiAccessPolicyTests(unittest.TestCase):
             ("DELETE", "/api/screener/strategies/42"): "member",
             ("DELETE", "/api/mentors/messages"): "member",
             ("DELETE", "/api/assistant/messages"): "member",
+            ("DELETE", "/api/heaven/readings/42"): "member",
         }
         for (method, path), role in cases.items():
             with self.subTest(method=method, path=path):
diff --git a/tests/test_frontend_contract.py b/tests/test_frontend_contract.py
index 1e61805..f20257e 100644
--- a/tests/test_frontend_contract.py
+++ b/tests/test_frontend_contract.py
@@ -99,6 +99,15 @@ class FrontendContractTests(unittest.TestCase):
         self.assertIn('elements.tradeLogDialog.showModal()', self.script)
         self.assertIn('renderTradeLog();\n    closeTradeLogDialog();', self.script)
 
+    def test_heaven_interpretations_use_one_dialog_and_history_tabs(self):
+        self.assertIn('id="heavenReadingDialog"', self.html)
+        self.assertIn('data-heaven-reading-tab="current"', self.html)
+        self.assertIn('data-heaven-reading-tab="history"', self.html)
+        for button_id in ("historyTrendButton", "historyFortuneButton", "historyHeartButton"):
+            self.assertIn(f'id="{button_id}"', self.html)
+        self.assertIn('state.heavenInterpretations.fortune = payload.daily_fortune_reading || "";', self.script)
+        self.assertIn('if (existing) {\n    openHeavenReading(mode, { loading: false });', self.script)
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/tests/test_heaven_readings.py b/tests/test_heaven_readings.py
new file mode 100644
index 0000000..335d664
--- /dev/null
+++ b/tests/test_heaven_readings.py
@@ -0,0 +1,88 @@
+from __future__ import annotations
+
+import tempfile
+import threading
+import unittest
+from pathlib import Path
+from unittest.mock import patch
+
+from database import ReviewDatabase
+from server import DashboardService
+
+
+class HeavenReadingTests(unittest.TestCase):
+    def setUp(self) -> None:
+        self.temp = tempfile.TemporaryDirectory()
+        self.database = ReviewDatabase(Path(self.temp.name) / "review.db")
+        self.owner = self.database.create_user("heaven_owner", "salt", "hash")
+        self.other = self.database.create_user("heaven_other", "salt", "hash")
+
+    def tearDown(self) -> None:
+        self.temp.cleanup()
+
+    def save(self, user_id: int, dedupe_key: str = "fortune:20260723") -> dict:
+        return self.database.save_heaven_reading(
+            user_id,
+            "fortune",
+            "20260723",
+            "2026-07-23 观气",
+            "丙午年 · 乙未月 · 己丑日",
+            "当日解运结果",
+            {"calendar_date": "20260723"},
+            dedupe_key,
+        )
+
+    def test_history_is_private_and_delete_requires_ownership(self):
+        reading = self.save(self.owner["id"])
+        self.assertEqual(
+            self.database.list_heaven_readings(self.owner["id"], "fortune")[0]["answer"],
+            "当日解运结果",
+        )
+        self.assertEqual(
+            self.database.list_heaven_readings(self.other["id"], "fortune"), []
+        )
+        self.assertFalse(
+            self.database.delete_heaven_reading(self.other["id"], reading["id"])
+        )
+        self.assertTrue(
+            self.database.delete_heaven_reading(self.owner["id"], reading["id"])
+        )
+
+    def test_fortune_dedupe_keeps_the_first_successful_result(self):
+        first = self.save(self.owner["id"])
+        second = self.database.save_heaven_reading(
+            self.owner["id"],
+            "fortune",
+            "20260723",
+            "replacement",
+            "replacement",
+            "不应覆盖",
+            {},
+            "fortune:20260723",
+        )
+        self.assertEqual(second["id"], first["id"])
+        self.assertEqual(second["answer"], "当日解运结果")
+
+    def test_fortune_interpretation_reuses_saved_result_before_llm(self):
+        existing = self.save(self.owner["id"])
+        service = DashboardService.__new__(DashboardService)
+        service.database = self.database
+        service._request_context = threading.local()
+        service._request_context.user_id = self.owner["id"]
+
+        with patch.object(service, "heaven_setup") as setup, patch.object(
+            service, "_call_heaven_agent"
+        ) as call_agent:
+            result = service.heaven_interpret(
+                {"mode": "fortune", "trade_date": "2026-07-23"}
+            )
+
+        setup.assert_not_called()
+        call_agent.assert_not_called()
+        self.assertTrue(result["reused"])
+        self.assertEqual(result["reading"]["id"], existing["id"])
+        self.assertEqual(result["answer"], "当日解运结果")
+
+
+if __name__ == "__main__":
+    unittest.main()