diff --git a/miniprogram/components/color-picker/color-picker.json b/miniprogram/components/color-picker/color-picker.json
new file mode 100644
index 0000000..b1518f0
--- /dev/null
+++ b/miniprogram/components/color-picker/color-picker.json
@@ -0,0 +1,8 @@
+{
+    "component": true,
+    "styleIsolation": "isolated",
+    "usingComponents": {
+        "van-popup": "@vant/weapp/popup/index",
+        "toy-button": "/ui/button/button"
+    }
+}
diff --git a/miniprogram/components/color-picker/color-picker.less b/miniprogram/components/color-picker/color-picker.less
new file mode 100644
index 0000000..715e1d3
--- /dev/null
+++ b/miniprogram/components/color-picker/color-picker.less
@@ -0,0 +1,103 @@
+.color-picker-popup {
+    border-radius: 20rpx;
+
+    .color-picker-container {
+        width: 642rpx;
+        background-color: #fff;
+        border-radius: 20rpx;
+        box-shadow: 0 3rpx 4rpx rgba(0, 0, 0, 0.15);
+        display: flex;
+        flex-direction: column;
+        padding: 36rpx 36rpx;
+        box-sizing: border-box;
+        align-items: center;
+
+        .color-picker-title {
+            font-size: 32rpx;
+            color: #141414;
+            font-weight: bold;
+            margin-bottom: 30rpx;
+        }
+
+        .color-options-title {
+            width: 100%;
+            height: 1rpx;
+            position: relative;
+            padding: 20rpx 0;
+
+            .color-options-title-text {
+                position: absolute;
+                left: 50%;
+                transform: translate(-50%, -50%);
+                top: 50%;
+                font-size: 28rpx;
+                color: #666;
+                padding: 0 20rpx;
+                background-color: #fff;
+            }
+
+            .color-options-title-line {
+                margin: 0 14rpx;
+                height: 1rpx;
+                background-color: #999;
+            }
+        }
+
+        .color-options {
+            display: flex;
+            flex-wrap: wrap;
+            justify-content: space-between;
+            align-items: center;
+            width: 100%;
+            padding: 20rpx 0;
+
+            .color-option {
+                width: 60rpx;
+                height: 60rpx;
+                border-radius: 10rpx;
+                margin: 14rpx;
+                display: inline-block;
+                cursor: pointer;
+                border: 1rpx solid #ccc;
+                box-shadow: 0 2rpx 4rpx rgba(0, 0, 0, 0.1);
+                transition: all 0.2s ease;
+
+                &.selected {
+                    // border: 1px solid rgba(10, 111, 252, 1);
+                    transform: scale(1.2);
+                    // border: 1px solid #0A6FFC;
+                    border: 1px solid #4096ff;
+                    // box-shadow: 0px 0px 1px 2px rgba(0, 145, 255, 0.1);
+                    box-shadow: 0 0 6rpx 6rpx rgba(5, 145, 255, 0.1);
+                }
+            }
+        }
+    }
+}
+
+.btn-area {
+    width: 100%;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    margin: 10rpx 24rpx;
+}
+
+// .btn-yellow {
+//     display: flex;
+//     justify-content: center;
+//     align-items: center;
+//     height: 86rpx;
+//     width: 400rpx;
+//     border-radius: 18rpx;
+//     background: rgba(255, 215, 25, 1);
+//     box-shadow: 0px 10rpx 4rpx #DBB917;
+//     font-size: 32rpx;
+//     font-weight: bold;
+//     color: #fff;
+
+//     &.disabled {
+//         background: rgba(255, 215, 25, 0.5);
+//         box-shadow: 0px 10rpx 4rpx rgba(219, 185, 23, 0.5);
+//     }
+// }
\ No newline at end of file
diff --git a/miniprogram/components/color-picker/color-picker.ts b/miniprogram/components/color-picker/color-picker.ts
new file mode 100644
index 0000000..cbe9af9
--- /dev/null
+++ b/miniprogram/components/color-picker/color-picker.ts
@@ -0,0 +1,44 @@
+import { WATER_COLORS } from '../../constants/index';
+
+Component({
+    options: {},
+    /**
+     * 组件的属性列表
+     */
+    properties: {
+        show: {
+            type: Boolean,
+            value: false,
+        },
+        currentColor: {
+            type: String,
+            value: '',
+        },
+    },
+    /**
+     * 组件的初始数据
+     */
+    data: {
+        WATER_COLORS: WATER_COLORS,
+    },
+    lifetimes: {
+        attached() {},
+    },
+    /**
+     * 组件的方法列表
+     */
+    methods: {
+        onClose() {
+            this.triggerEvent('onClose');
+        },
+
+        onSelectColor(e: WechatMiniprogram.TouchEvent) {
+            const { color } = e.currentTarget.dataset;
+            console.log('Selected color:', color);
+            this.setData({
+                currentColor: color,
+            });
+            this.triggerEvent('onSelectColor', { color });
+        },
+    },
+});
diff --git a/miniprogram/components/color-picker/color-picker.wxml b/miniprogram/components/color-picker/color-picker.wxml
new file mode 100644
index 0000000..b903875
--- /dev/null
+++ b/miniprogram/components/color-picker/color-picker.wxml
@@ -0,0 +1,40 @@
+<van-popup
+    show="{{ show }}"
+    bind:close="onClose"
+    custom-class="color-picker-popup">
+    <view class="color-picker-container">
+        <text class="color-picker-title">选择颜色</text>
+        <view class="color-options-title">
+            <text class="color-options-title-text">基础12色</text>
+            <view class="color-options-title-line"></view>
+        </view>
+        <view class="color-options">
+            <block wx:for="{{WATER_COLORS.basic12}}" wx:key="index">
+                <view
+                    class="color-option {{item.hex === currentColor ? 'selected' : ''}}"
+                    style="background-color: {{item.hex}};"
+                    bindtap="onSelectColor"
+                    data-color="{{item.hex}}"></view>
+            </block>
+        </view>
+        <view class="color-options-title">
+            <text class="color-options-title-text">扩展24色</text>
+            <view class="color-options-title-line"></view>
+        </view>
+        <view class="color-options">
+            <block wx:for="{{WATER_COLORS.extended24}}" wx:key="index">
+                <view
+                    class="color-option {{item.hex === currentColor ? 'selected' : ''}}"
+                    style="background-color: {{item.hex}};"
+                    bindtap="onSelectColor"
+                    data-color="{{item.hex}}"></view>
+            </block>
+        </view>
+        <view class="btn-area">
+            <!-- <view class="btn-yellow">确认选择</view> -->
+            <toy-button type="primary" bind:click="" width="400rpx">
+                确认选择
+            </toy-button>
+        </view>
+    </view>
+</van-popup>
diff --git a/miniprogram/components/word-card/word-card.ts b/miniprogram/components/word-card/word-card.ts
index 0dfbf9e..0f31502 100644
--- a/miniprogram/components/word-card/word-card.ts
+++ b/miniprogram/components/word-card/word-card.ts
@@ -37,5 +37,10 @@ Component({
             const { key, word } = this.data;
             this.triggerEvent('onDelete', { key, word });
         },
+
+        onColorTap() {
+            const { color, key, word } = this.data;
+            this.triggerEvent('onColorTap', { key, word, color });
+        },
     },
 });
diff --git a/miniprogram/components/word-card/word-card.wxml b/miniprogram/components/word-card/word-card.wxml
index 1bea49f..a508d0f 100644
--- a/miniprogram/components/word-card/word-card.wxml
+++ b/miniprogram/components/word-card/word-card.wxml
@@ -1,5 +1,8 @@
 <view class="word-card">
-    <view class="color-box" style="background-color: {{color}};"></view>
+    <view
+        class="color-box"
+        style="background-color: {{color}};"
+        bindtap="onColorTap"></view>
     <view class="word-box border-1px">
         <text class="word-content">{{word}}</text>
     </view>
diff --git a/miniprogram/pages/index/index.json b/miniprogram/pages/index/index.json
index 15b733f..28756d4 100644
--- a/miniprogram/pages/index/index.json
+++ b/miniprogram/pages/index/index.json
@@ -6,7 +6,10 @@
     "enablePullDownRefresh": false,
     "usingComponents": {
         "van-icon": "@vant/weapp/icon/index",
+        "van-popup": "@vant/weapp/popup/index",
         "word-input": "../../components/word-input/word-input",
-        "word-card": "../../components/word-card/word-card"
+        "word-card": "../../components/word-card/word-card",
+        "color-picker": "../../components/color-picker/color-picker",
+        "toy-button": "../../ui/button/button"
     }
 }
diff --git a/miniprogram/pages/index/index.less b/miniprogram/pages/index/index.less
index 4b0a1b4..cfb5440 100644
--- a/miniprogram/pages/index/index.less
+++ b/miniprogram/pages/index/index.less
@@ -67,9 +67,12 @@ page {
     justify-content: center;
     background-color: #fff;
     box-shadow: 0px -2px 4px rgba(0, 0, 0, 0.25);
+    padding-top: 24rpx;
 }
 
-.btn-green {
+
+
+/* .btn-green {
     display: flex;
     justify-content: center;
     align-items: center;
@@ -86,4 +89,78 @@ page {
     .btn-text {
         margin-left: 24rpx;
     }
-}
\ No newline at end of file
+
+    &.disabled {
+        background: rgba(147, 211, 51, 0.5);
+        box-shadow: 0px 10rpx 4rpx rgba(121, 185, 21, 0.5);
+    }
+}
+ */
+
+/* .color-picker-popup {
+    border-radius: 20rpx;
+
+    .color-picker-container {
+        width: 642rpx;
+        // height: 876rpx;
+        background-color: #fff;
+        border-radius: 20rpx;
+        box-shadow: 0 3rpx 4rpx rgba(0, 0, 0, 0.15);
+        display: flex;
+        flex-direction: column;
+        padding: 36rpx 36rpx;
+        box-sizing: border-box;
+        align-items: center;
+
+        .color-picker-title {
+            font-size: 32rpx;
+            color: #141414;
+            font-weight: bold;
+            margin-bottom: 30rpx;
+        }
+
+        .color-options-title {
+            width: 100%;
+            height: 1rpx;
+            position: relative;
+            padding: 20rpx 0;
+
+            .color-options-title-text {
+                position: absolute;
+                left: 50%;
+                transform: translate(-50%, -50%);
+                top: 50%;
+                font-size: 28rpx;
+                color: #666;
+                padding: 0 20rpx;
+                background-color: #fff;
+            }
+
+            .color-options-title-line {
+                margin: 0 14rpx;
+                height: 1rpx;
+                background-color: #999;
+            }
+        }
+
+        .color-options {
+            display: flex;
+            flex-wrap: wrap;
+            justify-content: space-between;
+            align-items: center;
+            width: 100%;
+            padding: 20rpx 0;
+
+            .color-option {
+                width: 60rpx;
+                height: 60rpx;
+                border-radius: 6rpx;
+                margin: 14rpx;
+                display: inline-block;
+                cursor: pointer;
+                border: 1rpx solid #ccc;
+                box-shadow: 0 2rpx 4rpx rgba(0, 0, 0, 0.1);
+            }
+        }
+    }
+} */
\ No newline at end of file
diff --git a/miniprogram/pages/index/index.ts b/miniprogram/pages/index/index.ts
index 38bb858..0b6d05a 100644
--- a/miniprogram/pages/index/index.ts
+++ b/miniprogram/pages/index/index.ts
@@ -10,6 +10,10 @@ Page({
 
     data: {
         cardList: [] as Array<{ color: string; word: string }>,
+        showColorPopup: false,
+        currentKey: 0,
+        currentColor: '',
+        WATER_COLORS: WATER_COLORS,
     },
 
     onReady() {
@@ -126,7 +130,7 @@ Page({
     /** 下载打印 */
     exportToPrint() {
         console.log('this.canvas:', this.canvas);
-        if (this.canvas) {
+        if (this.canvas && this.data.cardList.length > 0) {
             wx.canvasToTempFilePath({
                 canvas: this.canvas,
                 fileType: 'png',
@@ -150,4 +154,34 @@ Page({
             return;
         }
     },
+
+    onColorTap(e: WechatMiniprogram.CustomEvent) {
+        const { key, word, color } = e.detail;
+        console.log('onColorTap key:', key, 'word:', word, 'color:', color);
+        this.setData({
+            showColorPopup: true,
+            currentKey: key,
+            currentColor: color,
+        });
+        // const { cardList } = this.data;
+        // const updatedCardList = cardList.map((item, index) =>
+        //     index === key ? { ...item, color } : item,
+        // );
+        // this.setData({ cardList: updatedCardList });
+        // wx.showToast({
+        //     title: `已更改 "${word}" 的颜色`,
+        //     icon: 'none',
+        //     duration: 2000,
+        // });
+        // // this.renderCanvas();
+        // this.textDrawService?.draw(updatedCardList);
+    },
+
+    onCloseColorPopup() {
+        this.setData({
+            showColorPopup: false,
+            currentKey: 0,
+            currentColor: '',
+        });
+    },
 });
diff --git a/miniprogram/pages/index/index.wxml b/miniprogram/pages/index/index.wxml
index 7cfb3a1..508d261 100644
--- a/miniprogram/pages/index/index.wxml
+++ b/miniprogram/pages/index/index.wxml
@@ -12,13 +12,15 @@
                         key="{{index}}"
                         word="{{item.word}}"
                         color="{{item.color}}"
-                        bind:onDelete="deleteWordCard" />
+                        bind:onDelete="deleteWordCard"
+                        bind:onColorTap="onColorTap" />
                     <word-card
                         wx:if="{{cardList[index + 1]}}"
                         key="{{index + 1}}"
                         word="{{cardList[index + 1].word}}"
                         color="{{cardList[index + 1].color}}"
-                        bind:onDelete="deleteWordCard" />
+                        bind:onDelete="deleteWordCard"
+                        bind:onColorTap="onColorTap" />
                 </view>
             </block>
         </view>
@@ -36,10 +38,59 @@
         </view>
     </view>
     <view class="empty"></view>
+    <color-picker
+        show="{{showColorPopup}}"
+        currentColor="{{currentColor}}"
+        bind:onClose="onCloseColorPopup" />
+    <!-- <van-popup
+        show="{{ showColorPopup }}"
+        bind:close="onClose"
+        custom-class="color-picker-popup">
+        <view class="color-picker-container">
+            <text class="color-picker-title">选择颜色</text>
+            <view class="color-options-title">
+                <text class="color-options-title-text">基础12色</text>
+                <view class="color-options-title-line"></view>
+            </view>
+            <view class="color-options">
+                <block wx:for="{{WATER_COLORS.basic12}}" wx:key="index">
+                    <view
+                        class="color-option"
+                        style="background-color: {{item.hex}};"
+                        bindtap="onSelectColor"
+                        data-color="{{item.hex}}"></view>
+                </block>
+            </view>
+            <view class="color-options-title">
+                <text class="color-options-title-text">扩展24色</text>
+                <view class="color-options-title-line"></view>
+            </view>
+            <view class="color-options">
+                <block wx:for="{{WATER_COLORS.extended24}}" wx:key="index">
+                    <view
+                        class="color-option"
+                        style="background-color: {{item.hex}};"
+                        bindtap="onSelectColor"
+                        data-color="{{item.hex}}"></view>
+                </block>
+            </view>
+        </view>
+    </van-popup> -->
 </view>
 <view class="btn-area">
-    <view class="btn btn-green" bindtap="exportToPrint">
+    <!-- <view
+        class="btn btn-green {{cardList.length > 0 ? '' : 'disabled'}}"
+        bindtap="exportToPrint">
         <van-icon class-prefix="j-icon" name="download" size="44rpx" />
         <text class="btn-text">下载打印</text>
-    </view>
+    </view> -->
+    <toy-button
+        type="green"
+        bind:click="exportToPrint"
+        width="680rpx"
+        disabled="{{cardList.length <= 0}}"
+        icon="download"
+        icon-class-prefix="j-icon">
+        下载打印
+    </toy-button>
 </view>
diff --git a/miniprogram/ui/button/button.json b/miniprogram/ui/button/button.json
index 278aeab..5371331 100644
--- a/miniprogram/ui/button/button.json
+++ b/miniprogram/ui/button/button.json
@@ -1,5 +1,7 @@
 {
     "component": true,
-    "styleIsolation": "apply-shared",
-    "usingComponents": {}
+    "usingComponents": {
+        "van-icon": "@vant/weapp/icon/index",
+        "van-loading": "@vant/weapp/loading/index"
+    }
 }
diff --git a/miniprogram/ui/button/button.less b/miniprogram/ui/button/button.less
index e69de29..e67ab95 100644
--- a/miniprogram/ui/button/button.less
+++ b/miniprogram/ui/button/button.less
@@ -0,0 +1,41 @@
+@button-default-height: 86rpx;
+@button-border-radius: 18rpx;
+@button-default-font-size: 32rpx;
+@button-default-color: #fff;
+
+.toy-button {
+    box-sizing: border-box;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    height: @button-default-height;
+    line-height: @button-default-height;
+    border-radius: @button-border-radius;
+    font-size: @button-default-font-size;
+    color: @button-default-color;
+
+    &--primary {
+        background: rgba(255, 215, 25, 1);
+        box-shadow: 0px 10rpx 4rpx #DBB917;
+
+        &.disabled {
+            background: rgba(255, 215, 25, 0.5);
+            box-shadow: 0px 10rpx 4rpx rgba(219, 185, 23, 0.5);
+        }
+    }
+
+    &--green {
+        background: rgba(147, 211, 51, 1);
+        box-shadow: 0px 10rpx 4rpx rgba(121, 185, 21, 1);
+
+        &.disabled {
+            background: rgba(147, 211, 51, 0.5);
+            box-shadow: 0px 10rpx 4rpx rgba(121, 185, 21, 0.5);
+        }
+    }
+
+    .loading-class,
+    &__icon {
+        margin-right: 24rpx;
+    }
+}
\ No newline at end of file
diff --git a/miniprogram/ui/button/button.ts b/miniprogram/ui/button/button.ts
index 25b9380..e98ce4c 100644
--- a/miniprogram/ui/button/button.ts
+++ b/miniprogram/ui/button/button.ts
@@ -8,16 +8,12 @@ Component({
     properties: {
         type: {
             type: String,
-            value: 'default', // default, green, white
+            value: 'default', // primary, green, white
         },
         size: {
             type: String,
             value: 'normal', // large, normal, small, mini
         },
-        icon: {
-            type: String,
-            value: '', // 图标名称
-        },
         disabled: {
             type: Boolean,
             value: false, // 是否禁用
@@ -30,6 +26,52 @@ Component({
             type: Boolean,
             value: false, // 是否加载中
         },
+        style: {
+            type: String,
+            value: '', // 自定义样式
+        },
+        // className: {
+        //     type: String,
+        //     value: '', // 自定义类名
+        // },
+        width: {
+            type: String,
+            value: '', // 按钮宽度
+        },
+        height: {
+            type: String,
+            value: '',
+        },
+        loadingType: {
+            type: String,
+            value: 'circular',
+        },
+        loadingSize: {
+            type: String,
+            value: '20px',
+        },
+        loadingColor: {
+            type: String,
+            value: '#ffffff',
+        },
+
+        // icon
+        icon: {
+            type: String,
+            value: '',
+        },
+        iconClassPrefix: {
+            type: String,
+            value: 'j-icon',
+        },
+        iconSize: {
+            type: String,
+            value: '44rpx',
+        },
+        iconColor: {
+            type: String,
+            value: '#ffffff',
+        },
     },
     /**
      * 组件的初始数据
@@ -41,5 +83,9 @@ Component({
     /**
      * 组件的方法列表
      */
-    methods: {},
+    methods: {
+        onClick(e: WechatMiniprogram.TouchEvent): void {
+            this.triggerEvent('click', e);
+        },
+    },
 });
diff --git a/miniprogram/ui/button/button.wxml b/miniprogram/ui/button/button.wxml
index e69de29..0f45c03 100644
--- a/miniprogram/ui/button/button.wxml
+++ b/miniprogram/ui/button/button.wxml
@@ -0,0 +1,41 @@
+<wxs src="../wxs/base.wxs" module="Utils" />
+
+<button
+    class="toy-button toy-button--{{type}} {{ disabled ? 'toy-button--disabled' : '' }} {{Utils.classNames({disabled: disabled, loading: loading })}}"
+    style="{{style}};{{width ? 'width:' + width + ';' : ''}};{{height ? 'height:' + height + ';' : ''}}"
+    session-from="{{ sessionFrom }}"
+    send-message-title="{{ sendMessageTitle }}"
+    send-message-path="{{ sendMessagePath }}"
+    send-message-img="{{ sendMessageImg }}"
+    show-message-card="{{ showMessageCard }}"
+    app-parameter="{{ appParameter }}"
+    aria-label="{{ ariaLabel }}"
+    bindtap="{{ disabled || loading ? '' : 'onClick' }}"
+    bindgetuserinfo="onGetUserInfo"
+    bindcontact="onContact"
+    bindgetphonenumber="onGetPhoneNumber"
+    bindgetrealtimephonenumber="onGetRealTimePhoneNumber"
+    bindagreeprivacyauthorization="onAgreePrivacyAuthorization"
+    binderror="onError"
+    bindlaunchapp="onLaunchApp"
+    bindopensetting="onOpenSetting"
+    bindchooseavatar="onChooseAvatar">
+    <block wx:if="{{ loading }}">
+        <van-loading
+            custom-class="loading-class"
+            size="{{ loadingSize || iconSize }}"
+            type="{{ loadingType }}"
+            color="{{ loadingColor }}" />
+    </block>
+    <block wx:else>
+        <van-icon
+            wx:if="{{ icon }}"
+            size="1.2em"
+            name="{{ icon }}"
+            size="{{ iconSize }}"
+            color="{{ iconColor }}"
+            class-prefix="{{ iconClassPrefix }}"
+            class="toy-button__icon" />
+    </block>
+    <slot></slot>
+</button>