diff --git a/.memory/worklog.json b/.memory/worklog.json
index 480bb9a..a777007 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -1,26 +1,5 @@
 {
   "entries": [
-    {
-      "files_changed": 1,
-      "hash": "051750c",
-      "message": "auto-save 2026-05-07 18:34 (~1)",
-      "ts": "2026-05-07T18:34:35+08:00",
-      "type": "commit"
-    },
-    {
-      "files_changed": 1,
-      "hash": "410ed58",
-      "message": "auto-save 2026-05-07 18:40 (~1)",
-      "ts": "2026-05-07T18:40:09+08:00",
-      "type": "commit"
-    },
-    {
-      "files_changed": 1,
-      "hash": "20dfd2c",
-      "message": "auto-save 2026-05-07 18:45 (~1)",
-      "ts": "2026-05-07T18:46:01+08:00",
-      "type": "commit"
-    },
     {
       "files_changed": 1,
       "hash": "8335626",
@@ -3457,6 +3436,25 @@
       "message": "auto-save 2026-05-09 19:09 (~5)",
       "hash": "0aba599",
       "files_changed": 5
+    },
+    {
+      "ts": "2026-05-09T19:15:37+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-09 19:15 (~1)",
+      "hash": "31965bf",
+      "files_changed": 1
+    },
+    {
+      "ts": "2026-05-09T11:15:54Z",
+      "type": "session-heartbeat",
+      "message": "Codex 会话活跃 · 最近命令：codex · 分支 master · 1 项未提交变更 · 最近提交：auto-save 2026-05-09 19:15 (~1)",
+      "files_changed": 1
+    },
+    {
+      "ts": "2026-05-09T11:18:29Z",
+      "type": "session-heartbeat",
+      "message": "Codex 会话活跃 · 最近命令：codex · 分支 master · 3 项未提交变更 · 最近提交：auto-save 2026-05-09 19:15 (~1)",
+      "files_changed": 3
     }
   ]
 }
diff --git a/RULES.md b/RULES.md
index 4a36564..89bdb03 100644
--- a/RULES.md
+++ b/RULES.md
@@ -16,8 +16,9 @@
 - 飞书机器人列表：https://hermes.kang-kang.com/feishu/apps（只读展示 App ID / 回调地址，不含 Secret / Token）
 - 爱马仕前端「集成 → 飞书集成」可自助添加 / 更新飞书机器人；Secret / Token 只写入服务器 `/etc/hermes-feishu-bridge.env`
 - 爱马仕前端「仪表盘」同步了上游 Hermes 的快捷入口板块，个人版展示主站、API、飞书机器人列表、文档/解析入口
+- 爱马仕前端「仪表盘」活动热力图已重做为带摘要、月份标尺、紧凑格子和细分色阶的活动卡片
 - 爱马仕前端「设置 → 连接」可自助维护 API 地址 / API Key 并测试连接；「对话 → 存周报」和「设置 → 周报记录」会在本地保存任务描述、上下文片段和最终周报
-- 当前前端静态壳缓存版本：`hermes-ui-v15`
+- 当前前端静态壳缓存版本：`hermes-ui-v16`
 - 文档 / 解析：https://styles.kang-kang.com
 - 管理后台：待定
 - 代码仓：https://git.kang-kang.com/kangwan/hermes-glass-ui-personal
diff --git a/src/app.js b/src/app.js
index a207ca2..cb54b23 100644
--- a/src/app.js
+++ b/src/app.js
@@ -1303,12 +1303,13 @@ function renderHeatmap() {
   el.innerHTML = "";
   const b = bucketUsage();
 
-  // 根据容器宽度动态决定多少列,每格至少 18px
-  const width = el.parentElement.clientWidth - 80; // 减去 padding 和 label 列
-  const cellMin = 22;
-  const weeksCount = Math.max(12, Math.min(26, Math.floor(width / (cellMin + 8))));
+  // 根据容器宽度动态决定多少列,保持格子紧凑不拉伸成大方块
+  const width = el.parentElement.clientWidth - 64; // 减去内边距和星期 label 列
+  const cellMin = 18;
+  const weeksCount = Math.max(14, Math.min(30, Math.floor(width / (cellMin + 6))));
 
   el.style.setProperty("--hm-cols", weeksCount);
+  document.getElementById("heatmapMonths")?.style.setProperty("--hm-cols", weeksCount);
 
   // 绝对阈值: 每天消息数落在哪个区间
   // 0 = 无活动 | 1-5 = 轻 | 6-15 = 一般 | 16-40 = 活跃 | 41+ = 高强度
@@ -1328,6 +1329,31 @@ function renderHeatmap() {
   const startMonday = new Date(today);
   startMonday.setDate(startMonday.getDate() - todayDow - (weeksCount - 1) * 7);
 
+  const monthEl = document.getElementById("heatmapMonths");
+  if (monthEl) {
+    const monthNames = ["1月", "2月", "3月", "4月", "5月", "6月", "7月", "8月", "9月", "10月", "11月", "12月"];
+    const monthCells = ['<div class="hm-month-spacer"></div>'];
+    for (let w = 0; w < weeksCount; w++) {
+      const weekStart = new Date(startMonday);
+      weekStart.setDate(weekStart.getDate() + w * 7);
+      let label = "";
+      for (let d = 0; d < 7; d++) {
+        const cursor = new Date(weekStart);
+        cursor.setDate(cursor.getDate() + d);
+        if (w === 0 || cursor.getDate() === 1) {
+          label = monthNames[cursor.getMonth()];
+          break;
+        }
+      }
+      monthCells.push(`<div class="hm-month-label">${label}</div>`);
+    }
+    monthEl.innerHTML = monthCells.join("");
+  }
+
+  let activeDays = 0;
+  let peakMsgs = 0;
+  let peakKey = "";
+
   // 按 row(weekday) × col(week) 的顺序铺,每行先放一个 label
   const labels = ["一", "", "三", "", "五", "", "日"];
   for (let dow = 0; dow < 7; dow++) {
@@ -1344,15 +1370,23 @@ function renderHeatmap() {
       const msgs = data?.messages || 0;
       const lvl = levelOf(msgs);
       const future = cursor > today;
+      if (!future && msgs > 0) activeDays += 1;
+      if (!future && msgs > peakMsgs) {
+        peakMsgs = msgs;
+        peakKey = k;
+      }
       const cell = document.createElement("div");
       cell.className = "hm-cell lvl-" + lvl + (future ? " future" : "") + (k === selectedDay ? " sel" : "");
       cell.title = k + (msgs ? ` · ${msgs} 条消息` : " · 无活动");
+      cell.setAttribute("aria-label", cell.title);
       if (!future) {
         cell.onclick = () => { selectedDay = k; renderHeatmap(); renderDayDetail(k); };
       }
       el.appendChild(cell);
     }
   }
+  setText("hmActiveDays", activeDays + " 个活跃日");
+  setText("hmPeakDay", peakMsgs ? ("峰值 " + peakMsgs + " · " + peakKey.slice(5)) : "峰值 0");
 }
 
 // 窗口尺寸变化时重新渲染热力图
diff --git a/src/index.html b/src/index.html
index d226063..77587b1 100644
--- a/src/index.html
+++ b/src/index.html
@@ -1006,9 +1006,22 @@ git push  # Gitea kangwan/hermes-glass-ui-personal
         </div>
 
         <!-- 热力图 -->
-        <div class="dash-section-label">活动热力图 · 最近 8 周</div>
         <div class="heatmap-wrap">
-          <div class="heatmap" id="heatmap"></div>
+          <div class="heatmap-head">
+            <div>
+              <div class="heatmap-kicker">活动热力图</div>
+              <h3>最近使用节奏</h3>
+              <p>按天聚合消息量，颜色越深代表当天对话越活跃。</p>
+            </div>
+            <div class="heatmap-metrics">
+              <span id="hmActiveDays">0 个活跃日</span>
+              <span id="hmPeakDay">峰值 0</span>
+            </div>
+          </div>
+          <div class="heatmap-board">
+            <div class="heatmap-months" id="heatmapMonths"></div>
+            <div class="heatmap" id="heatmap"></div>
+          </div>
           <div class="heatmap-legend">
             <span>少</span>
             <div class="hm-cell lvl-0"></div>
diff --git a/src/styles.css b/src/styles.css
index 966de6c..87d186b 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -1955,26 +1955,111 @@ a { color: var(--orange-3); text-decoration: none; }
   margin-top: 3px;
   overflow-wrap: anywhere;
 }
-/* 热力图 — 全宽大格 */
+/* 活动热力图 */
 .heatmap-wrap {
-  padding: 24px 28px 22px;
-  background: var(--card-bg);
+  padding: 20px 22px 18px;
+  background:
+    linear-gradient(135deg, rgba(255,105,0,0.08), rgba(255,255,255,0.035) 42%, rgba(255,178,89,0.035)),
+    var(--card-bg);
   border: 1px solid var(--line);
-  border-radius: 18px;
+  border-radius: 20px;
   margin-bottom: 18px;
-  /* blur 已在外壳统一处理,内部卡片不再单独磨砂以降低合成成本 */
+  overflow: hidden;
 }
+[data-theme="light"] .heatmap-wrap {
+  background:
+    linear-gradient(135deg, rgba(255,105,0,0.08), rgba(255,255,255,0.68) 48%, rgba(255,178,89,0.08)),
+    var(--card-bg);
+}
+.heatmap-head {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 18px;
+  padding-bottom: 16px;
+  border-bottom: 1px solid var(--line);
+  min-width: 0;
+}
+.heatmap-kicker {
+  color: var(--orange-3);
+  font-size: 10px;
+  font-weight: 800;
+  letter-spacing: 1.4px;
+  text-transform: uppercase;
+  margin-bottom: 5px;
+}
+.heatmap-head h3 {
+  margin: 0;
+  color: var(--text);
+  font-size: 17px;
+  font-weight: 850;
+  letter-spacing: -0.3px;
+}
+.heatmap-head p {
+  margin: 5px 0 0;
+  color: var(--text-dim2);
+  font-size: 12px;
+  line-height: 1.55;
+}
+.heatmap-metrics {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 8px;
+  flex-wrap: wrap;
+  flex: 0 0 auto;
+}
+.heatmap-metrics span {
+  border: 1px solid rgba(255,105,0,0.24);
+  background: rgba(255,105,0,0.08);
+  color: var(--orange-3);
+  border-radius: 999px;
+  padding: 6px 9px;
+  font-size: 11px;
+  font-weight: 800;
+  font-variant-numeric: tabular-nums;
+}
+.heatmap-board {
+  margin-top: 16px;
+  padding: 14px;
+  border: 1px solid var(--line);
+  border-radius: 16px;
+  background: rgba(0,0,0,0.12);
+  overflow-x: auto;
+  overflow-y: hidden;
+  overscroll-behavior-inline: contain;
+}
+[data-theme="light"] .heatmap-board { background: rgba(15,22,40,0.035); }
+.heatmap-months {
+  display: grid;
+  grid-template-columns: 28px repeat(var(--hm-cols, 16), minmax(12px, 22px));
+  gap: 5px;
+  justify-content: space-between;
+  min-width: 420px;
+  margin-bottom: 6px;
+}
+.hm-month-label {
+  color: var(--text-dim3);
+  font-size: 10px;
+  font-weight: 800;
+  line-height: 1;
+  white-space: nowrap;
+  overflow: visible;
+}
+.hm-month-spacer { min-width: 28px; }
 .heatmap {
   display: grid;
-  grid-template-columns: auto repeat(var(--hm-cols, 16), 1fr);
-  grid-auto-rows: 1fr;
-  gap: 8px;
+  grid-template-columns: 28px repeat(var(--hm-cols, 16), minmax(12px, 22px));
+  grid-auto-rows: clamp(13px, 1.8vw, 20px);
+  gap: 5px;
+  justify-content: space-between;
   width: 100%;
+  min-width: 420px;
 }
 .hm-row-label {
   font-size: 10px;
   color: var(--text-dim3);
-  font-weight: 700;
+  font-weight: 800;
   text-align: right;
   padding-right: 6px;
   align-self: center;
@@ -1982,38 +2067,54 @@ a { color: var(--orange-3); text-decoration: none; }
 }
 .hm-cell {
   width: 100%;
-  aspect-ratio: 1;
-  min-height: 0;
-  border-radius: 6px;
-  background: rgba(255,255,255,0.04);
-  border: 1px solid var(--line);
+  height: 100%;
+  min-width: 12px;
+  border-radius: 5px;
+  background: rgba(255,255,255,0.045);
+  border: 1px solid rgba(255,255,255,0.07);
   cursor: pointer;
-  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
+  position: relative;
+  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease;
+}
+[data-theme="light"] .hm-cell {
+  background: rgba(15,22,40,0.045);
+  border-color: rgba(15,22,40,0.06);
 }
-[data-theme="light"] .hm-cell { background: rgba(15,22,40,0.04); }
 .hm-cell:hover {
-  transform: scale(1.12);
-  border-color: var(--orange);
-  box-shadow: 0 0 0 2px rgba(255,105,0,0.25);
+  transform: translateY(-2px) scale(1.08);
+  border-color: rgba(255,178,89,0.75);
+  box-shadow: 0 8px 18px rgba(0,0,0,0.24), 0 0 0 2px rgba(255,105,0,0.2);
+  filter: saturate(1.08);
   z-index: 2;
 }
-.hm-cell.lvl-1 { background: rgba(255,105,0,0.22); border-color: rgba(255,105,0,0.35); }
-.hm-cell.lvl-2 { background: rgba(255,105,0,0.40); border-color: rgba(255,105,0,0.55); }
-.hm-cell.lvl-3 { background: rgba(255,105,0,0.62); border-color: rgba(255,105,0,0.8); }
+.hm-cell.lvl-1 {
+  background: rgba(255,178,89,0.24);
+  border-color: rgba(255,178,89,0.28);
+}
+.hm-cell.lvl-2 {
+  background: rgba(255,136,48,0.42);
+  border-color: rgba(255,136,48,0.46);
+}
+.hm-cell.lvl-3 {
+  background: linear-gradient(135deg, rgba(255,105,0,0.72), rgba(255,178,89,0.52));
+  border-color: rgba(255,136,48,0.76);
+}
 .hm-cell.lvl-4 {
-  background: var(--orange);
-  border-color: var(--orange);
-  box-shadow: 0 0 16px rgba(255,105,0,0.4);
+  background: linear-gradient(135deg, #ff6900, #ffb259);
+  border-color: rgba(255,178,89,0.9);
+  box-shadow: 0 0 18px rgba(255,105,0,0.28);
 }
 .hm-cell.sel {
-  outline: 2px solid var(--orange);
-  outline-offset: 3px;
+  outline: 2px solid rgba(255,210,150,0.95);
+  outline-offset: 2px;
+  box-shadow: 0 0 0 5px rgba(255,105,0,0.12), 0 12px 22px rgba(0,0,0,0.25);
   z-index: 3;
 }
 .hm-cell.future {
-  opacity: 0.18;
+  opacity: 0.3;
   cursor: default;
-  background: transparent;
+  background: repeating-linear-gradient(135deg, transparent 0 4px, rgba(255,255,255,0.035) 4px 8px);
+  border-style: dashed;
 }
 .hm-cell.future:hover { transform: none; box-shadow: none; border-color: var(--line); }
 
@@ -2021,19 +2122,18 @@ a { color: var(--orange-3); text-decoration: none; }
   display: flex;
   align-items: center;
   gap: 8px;
-  margin-top: 18px;
-  padding-top: 16px;
-  border-top: 1px solid var(--line);
+  margin-top: 14px;
+  justify-content: flex-end;
   font-size: 11px;
   color: var(--text-dim2);
-  font-weight: 600;
+  font-weight: 700;
 }
 .heatmap-legend .hm-cell {
   width: 16px;
   height: 16px;
-  aspect-ratio: auto;
   cursor: default;
   flex: 0 0 16px;
+  min-width: 16px;
 }
 .heatmap-legend .hm-cell:hover { transform: none; box-shadow: none; }
 
diff --git a/src/sw.js b/src/sw.js
index 1d3a7bd..d0dac7b 100644
--- a/src/sw.js
+++ b/src/sw.js
@@ -1,6 +1,6 @@
 // 爱马仕 Hermes · 轻量 Service Worker
 // 静态壳走 network-first（拿不到再回退缓存），API 直通
-const CACHE = "hermes-ui-v15";
+const CACHE = "hermes-ui-v16";
 const ASSETS = [
   "./",
   "./index.html",