diff --git a/app.py b/app.py
index e38f188..c90df4a 100644
--- a/app.py
+++ b/app.py
@@ -68,11 +68,58 @@ def logout():
 
 # ── 主页 ──────────────────────────────────────────────
 
+def compute_stats():
+    """计算统计数据，供 API 和模板共用"""
+    rows = get_all_checkins()
+    total_days = len(rows)
+    total_morning = 0
+    total_evening = 0
+    total_study = 0
+    calendar = {}
+
+    for row in rows:
+        d = row['date']
+        data = row['data']
+        morning = data.get('morning', [])
+        evening = data.get('evening', [])
+        study = data.get('study', [])
+
+        total_morning += sum(1 for x in morning if isinstance(x, str) and x.strip())
+        total_evening += sum(1 for x in evening if (
+            isinstance(x, str) and x.strip() or
+            isinstance(x, dict) and (x.get('mistake', '') or '').strip()
+        ))
+        total_study += sum(1 for x in study if x.get('done'))
+
+        day_score = 0
+        has_morning = any(isinstance(x, str) and x.strip() for x in morning)
+        has_evening = any(
+            (isinstance(x, str) and x.strip()) or
+            (isinstance(x, dict) and (x.get('mistake', '') or '').strip())
+            for x in evening
+        )
+        has_study = any(x.get('done') for x in study)
+        if has_morning: day_score += 1
+        if has_evening: day_score += 1
+        if has_study: day_score += 1
+
+        calendar[d] = 'pass' if day_score >= 2 else 'fail'
+
+    return dict(
+        total_days=total_days, total_morning=total_morning,
+        total_evening=total_evening, total_study=total_study,
+        calendar=calendar
+    )
+
+
 @app.route('/')
 @login_required
 def index():
+    import json
+    stats = compute_stats()
     return render_template('index.html',
-                           username=session.get('display_name', session.get('username', '')))
+                           username=session.get('display_name', session.get('username', '')),
+                           initial_stats=json.dumps(stats, ensure_ascii=False))
 
 
 # ── API ──────────────────────────────────────────────
@@ -116,56 +163,8 @@ def api_history():
 @app.route('/api/stats', methods=['GET'])
 @login_required
 def api_stats():
-    """返回统计数据和日历状态映射"""
-    rows = get_all_checkins()
-
-    total_days = len(rows)
-    total_morning = 0
-    total_evening = 0
-    total_study = 0
-    calendar = {}
-
-    for row in rows:
-        d = row['date']
-        data = row['data']
-        morning = data.get('morning', [])
-        evening = data.get('evening', [])
-        study = data.get('study', [])
-
-        # 统计条目
-        total_morning += sum(1 for x in morning if isinstance(x, str) and x.strip())
-        total_evening += sum(1 for x in evening if (
-            isinstance(x, str) and x.strip() or
-            isinstance(x, dict) and (x.get('mistake', '') or '').strip()
-        ))
-        total_study += sum(1 for x in study if x.get('done'))
-
-        # 评分
-        day_score = 0
-        has_morning = any(isinstance(x, str) and x.strip() for x in morning)
-        has_evening = any(
-            (isinstance(x, str) and x.strip()) or
-            (isinstance(x, dict) and (x.get('mistake', '') or '').strip())
-            for x in evening
-        )
-        has_study = any(x.get('done') for x in study)
-        if has_morning:
-            day_score += 1
-        if has_evening:
-            day_score += 1
-        if has_study:
-            day_score += 1
-
-        calendar[d] = 'pass' if day_score >= 2 else 'fail'
-
-    return jsonify({
-        'ok': True,
-        'total_days': total_days,
-        'total_morning': total_morning,
-        'total_evening': total_evening,
-        'total_study': total_study,
-        'calendar': calendar
-    })
+    stats = compute_stats()
+    return jsonify({'ok': True, **stats})
 
 
 @app.route('/api/user', methods=['GET'])
diff --git a/static/app.js b/static/app.js
index 4289620..060f947 100644
--- a/static/app.js
+++ b/static/app.js
@@ -218,7 +218,7 @@
         document.getElementById('stat-study').textContent = data.total_study;
         calendarStatus = data.calendar || {};
       }
-      renderCalendar(); // 无论成败都重新渲染
+      renderCalendar();
     });
   }
 
@@ -649,9 +649,19 @@
     initStudyPresets();
     bindAutoSave();
     lastSavedDate = todayStr;
+
+    // 从页面嵌入数据获取初始统计（0 延迟）
+    if (window.__INITIAL_STATS__) {
+      var s = window.__INITIAL_STATS__;
+      document.getElementById('stat-days').textContent = s.total_days;
+      document.getElementById('stat-morning').textContent = s.total_morning;
+      document.getElementById('stat-study').textContent = s.total_study;
+      calendarStatus = s.calendar || {};
+    }
+
     loadCheckin();
-    loadStats();
-    renderCalendar();  // 立即渲染日历，不等异步统计
+    loadStats();       // 异步刷新最新数据
+    renderCalendar();  // 同步渲染 — calendarStatus 已有值
   }
 
   if (document.readyState === 'loading') {
diff --git a/templates/index.html b/templates/index.html
index 7ab6d64..92d5faa 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -5,6 +5,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <title>紫微 · 磁场管理</title>
 <link rel="stylesheet" href="{{ url_for('static', filename='style.css') }}">
+<script>window.__INITIAL_STATS__ = {{ initial_stats | safe }};</script>
 </head>
 <body>
 {% include "icons.html" %}