diff --git a/web/templates/index.html b/web/templates/index.html
index 56d7c0e..6727fef 100644
--- a/web/templates/index.html
+++ b/web/templates/index.html
@@ -5871,37 +5871,62 @@
                     } catch (e) {}
                 };
                 
-                // 初始化默认EMA配置（仅在首次初始化时）
+                // 初始化默认均线/布林带配置（仅在首次初始化时）
                 if (!hasInitializedDefaultMAs && movingAverages.length === 0) {
-                    console.log('初始化默认EMA指标');
+                    console.log('初始化默认均线与布林带指标');
                     
-                    // 添加默认EMA配置
-                    const defaultEMAs = [
-                        { type: 'EMA', length: 6, color: '#FF0000', name: 'EMA6' },    // 红色
-                        { type: 'EMA', length: 13, color: '#0000FF', name: 'EMA13' },  // 蓝色
-                        { type: 'EMA', length: 24, color: '#008000', name: 'EMA24' },  // 深绿色
-                        { type: 'EMA', length: 52, color: '#800080', name: 'EMA52' }   // 紫色
+                    if (typeof maIdCounter !== 'number' || !Number.isFinite(maIdCounter)) {
+                        maIdCounter = 0;
+                    }
+                    if (typeof bbIdCounter !== 'number' || !Number.isFinite(bbIdCounter)) {
+                        bbIdCounter = 0;
+                    }
+                    
+                    const defaultMAs = [
+                        { type: 'EMA', length: 52, color: '#800080', name: 'EMA52' },   // 紫色
+                        { type: 'EMA', length: 24, color: '#008000', name: 'EMA24' },   // 深绿色
+                        { type: 'SMA', length: 30, color: '#FF8C00', name: 'SMA30' },    // 橙色
+                        { type: 'SMA', length: 250, color: '#1E90FF', name: 'SMA250' }   // 蓝色
                     ];
                     
-                    defaultEMAs.forEach(ema => {
+                    defaultMAs.forEach(ma => {
                         const config = {
                             id: ++maIdCounter,
-                            type: ema.type,
-                            length: ema.length,
+                            type: ma.type,
+                            length: ma.length,
                             source: 'close',
                             smoothType: 'none',
                             smoothLength: 3,
-                            lineWidth: 1,  // 1px线宽
-                            lineStyle: 0,  // 实线
-                            color: ema.color,
-                            visible: (ema.length === 24 || ema.length === 52)
+                            lineWidth: 1,   // 1px线宽
+                            lineStyle: 0,   // 实线
+                            color: ma.color,
+                            visible: true
                         };
                         
                         movingAverages.push(config);
-                        console.log(`添加默认${ema.name}:`, ema.color);
+                        console.log(`添加默认${ma.name}:`, ma.color);
                     });
                     
-                    console.log('默认EMA配置完成，共添加', movingAverages.length, '个指标');
+                    if (bollingerBands.length === 0) {
+                        const defaultBB = {
+                            id: ++bbIdCounter,
+                            type: 'Bollinger Bands',
+                            length: 20,
+                            upperMultiplier: 2,
+                            lowerMultiplier: 2,
+                            source: 'close',
+                            lineWidth: 2,
+                            lineStyle: 0,
+                            upperColor: '#ff6b6b',
+                            middleColor: '#667eea',
+                            lowerColor: '#4ecdc4',
+                            visible: true
+                        };
+                        bollingerBands.push(defaultBB);
+                        console.log('添加默认布林带: BB(20, 2, 2)');
+                    }
+                    
+                    console.log('默认指标配置完成，当前均线数量', movingAverages.length, '布林带数量', bollingerBands.length);
                     hasInitializedDefaultMAs = true;
                 }