diff --git a/pages.json b/pages.json
index ce1297d..2781a06 100644
--- a/pages.json
+++ b/pages.json
@@ -11,8 +11,8 @@
 		{
 			"path": "pages/assistant/assistant",
 			"style": {
-				"navigationBarTitleText": "AI助手",
-				"navigationBarBackgroundColor": "#64B5F6",
+				"navigationBarTitleText": "宠物助手",
+				"navigationBarBackgroundColor": "#FF8A80",
 				"navigationBarTextStyle": "white"
 			}
 		},
diff --git a/pages/assistant/assistant.vue b/pages/assistant/assistant.vue
index 997dd16..63b5cb5 100644
--- a/pages/assistant/assistant.vue
+++ b/pages/assistant/assistant.vue
@@ -1,81 +1,109 @@
 <template>
 	<view class="assistant-container">
-		<u-navbar title="AI助手" :border="false" bg-color="#4ecdc4">
-			<template #right>
-				<u-icon name="book" color="white" size="20" @click="openKnowledge"></u-icon>
-			</template>
-		</u-navbar>
-
-		<!-- 快捷问题 -->
-		<view class="quick-questions" v-if="messageList.length <= 1">
-			<u-text text="常见问题" type="primary" size="16" bold margin="20rpx 0"></u-text>
-			<view class="question-grid">
-				<u-button
-					v-for="question in quickQuestions"
-					:key="question.id"
-					:text="question.text"
-					type="info"
-					size="mini"
-					plain
-					@click="askQuestion(question.text)"
-				></u-button>
+		<!-- 宠物助手信息卡片 -->
+		<view class="assistant-info-card">
+			<view class="assistant-avatar-wrapper">
+				<view class="assistant-avatar">
+					<text class="avatar-emoji">🤖</text>
+				</view>
+			</view>
+			<view class="assistant-info-text">
+				<text class="assistant-name">宠物助手</text>
+				<text class="assistant-status">专业的宠物护理顾问</text>
+			</view>
+			<view class="chat-status">
+				<view class="status-dot"></view>
+				<text class="status-text">在线</text>
+			</view>
+			<view class="knowledge-icon" @click="openKnowledge">
+				<text class="icon-text">📚</text>
 			</view>
 		</view>
 
-		<!-- 聊天区域 -->
-		<scroll-view class="chat-area" scroll-y="true" :scroll-top="scrollTop" scroll-with-animation="true">
-			<view class="message-list">
-				<view class="message-item" v-for="(message, index) in messageList" :key="index"
-					:class="message.type === 'user' ? 'user-message' : 'ai-message'">
-					<u-avatar
-						v-if="message.type === 'user'"
-						:src="userAvatar"
-						size="35"
-						shape="circle"
-					></u-avatar>
-					<u-avatar
-						v-else
-						src="/static/ai-avatar.png"
-						size="35"
-						shape="circle"
-					></u-avatar>
-					<view class="message-content">
-						<u-text :text="message.content" size="14" :type="message.type === 'user' ? 'primary' : 'info'"></u-text>
-						<u-text :text="message.time" type="tips" size="10" margin="8rpx 0 0 0"></u-text>
-					</view>
-				</view>
+		<!-- 聊天消息列表 -->
+		<view class="chat-messages">
+			<scroll-view
+				class="chat-scroll"
+				scroll-y
+				:scroll-top="scrollTop"
+				scroll-with-animation
+			>
+				<view class="message-list">
+					<!-- 消息项 -->
+					<template v-for="(message, index) in messageList" :key="index">
+						<!-- AI消息 -->
+						<view class="message-item ai" v-if="message.type === 'ai'">
+							<view class="message-avatar">
+								<view class="assistant-avatar">
+									<text class="avatar-emoji">🤖</text>
+								</view>
+							</view>
+							<view class="message-content ai">
+								<view class="message-bubble ai">
+									<text class="message-text" v-if="!(isThinking && index === messageList.length - 1)">{{ message.content }}</text>
+									<view class="typing-dots" v-else>
+										<view class="typing-dot"></view>
+										<view class="typing-dot"></view>
+										<view class="typing-dot"></view>
+									</view>
+								</view>
+								<text class="message-time" v-if="!(isThinking && index === messageList.length - 1)">{{ message.time }}</text>
+							</view>
+						</view>
 
-				<!-- AI思考中状态 -->
-				<view class="message-item ai-message" v-if="isThinking">
-					<u-avatar src="/static/ai-avatar.png" size="35" shape="circle"></u-avatar>
-					<view class="message-content thinking">
-						<u-loading-icon mode="flower" color="#4ecdc4"></u-loading-icon>
-						<u-text text="AI正在思考中..." type="tips" size="12" margin="0 0 0 20rpx"></u-text>
+						<!-- 用户消息 -->
+						<view class="message-item user" v-if="message.type === 'user'">
+							<view class="message-content user">
+								<view class="message-bubble user">
+									<text class="message-text">{{ message.content }}</text>
+								</view>
+								<text class="message-time">{{ message.time }}</text>
+							</view>
+							<view class="message-avatar">
+								<view class="user-avatar">
+									<text class="avatar-emoji">👤</text>
+								</view>
+							</view>
+						</view>
+					</template>
+
+					<!-- AI思考中状态 -->
+					<view class="message-item ai" v-if="isThinking">
+						<view class="message-avatar">
+							<view class="assistant-avatar">
+								<text class="avatar-emoji">🤖</text>
+							</view>
+						</view>
+						<view class="message-content ai">
+							<view class="message-bubble ai typing-bubble">
+								<view class="typing-dots">
+									<view class="typing-dot"></view>
+									<view class="typing-dot"></view>
+									<view class="typing-dot"></view>
+								</view>
+							</view>
+						</view>
 					</view>
 				</view>
-			</view>
-		</scroll-view>
+			</scroll-view>
+		</view>
 
 		<!-- 输入区域 -->
-		<view class="input-area">
+		<view class="chat-input-area">
 			<view class="input-container">
-				<u-input
-					v-model="inputMessage"
-					placeholder="请输入您的问题..."
-					:border="false"
-					bg-color="#f5f5f5"
-					shape="circle"
-					@confirm="sendMessage"
-					confirm-type="send"
-				></u-input>
-				<u-button
-					:text="inputMessage.trim() ? '发送' : '🎤'"
-					type="primary"
-					size="mini"
-					shape="circle"
-					:disabled="isThinking"
-					@click="inputMessage.trim() ? sendMessage() : startVoiceInput()"
-				></u-button>
+				<view class="input-wrapper">
+					<input
+						v-model="inputMessage"
+						placeholder="和宠物助手说点什么..."
+						class="message-input"
+						@confirm="sendMessage"
+						confirm-type="send"
+						maxlength="500"
+					/>
+				</view>
+				<view class="send-button" @click="sendMessage" :class="{ active: inputMessage.trim() }">
+					<text class="send-text">发送</text>
+				</view>
 			</view>
 		</view>
 	</view>
@@ -235,95 +263,354 @@ export default {
 
 <style lang="scss" scoped>
 .assistant-container {
-	display: flex;
-	flex-direction: column;
-	height: 100vh;
-	background-color: #f8f9fa;
+  width: 100vw;
+  height: 100vh;
+  display: flex;
+  flex-direction: column;
+  background: linear-gradient(135deg, #FF8A80 0%, #FFB6C1 25%, #FECFEF 50%, #F8BBD9 100%);
+  position: relative;
+}
+
+.assistant-info-card {
+  background: rgba(255, 255, 255, 0.95);
+  backdrop-filter: blur(20rpx);
+  margin: 20rpx 30rpx 0 30rpx;
+  margin-top: calc(20rpx + env(safe-area-inset-top));
+  border-radius: 24rpx;
+  padding: 24rpx;
+  display: flex;
+  align-items: center;
+  box-shadow: 0 8rpx 32rpx rgba(255, 138, 128, 0.2);
+  border: 1rpx solid rgba(255, 255, 255, 0.3);
+
+  .assistant-avatar-wrapper {
+    margin-right: 24rpx;
+
+    .assistant-avatar {
+      width: 80rpx;
+      height: 80rpx;
+      border-radius: 40rpx;
+      background: linear-gradient(135deg, #FF8A80, #FFB6C1);
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      box-shadow: 0 8rpx 24rpx rgba(255, 138, 128, 0.3);
+
+      .avatar-emoji {
+        font-size: 40rpx;
+        color: #ffffff;
+      }
+    }
+  }
+
+  .assistant-info-text {
+    flex: 1;
+    display: flex;
+    flex-direction: column;
+    gap: 8rpx;
+
+    .assistant-name {
+      font-size: 32rpx;
+      font-weight: 600;
+      color: #333333;
+    }
+
+    .assistant-status {
+      font-size: 24rpx;
+      color: #666666;
+    }
+  }
+
+  .chat-status {
+    display: flex;
+    align-items: center;
+    gap: 12rpx;
+    margin-right: 20rpx;
+
+    .status-dot {
+      width: 16rpx;
+      height: 16rpx;
+      border-radius: 50%;
+      background: #4CAF50;
+      box-shadow: 0 0 0 4rpx rgba(76, 175, 80, 0.2);
+    }
+
+    .status-text {
+      font-size: 24rpx;
+      color: #4CAF50;
+      font-weight: 500;
+    }
+  }
+
+  .knowledge-icon {
+    width: 60rpx;
+    height: 60rpx;
+    border-radius: 30rpx;
+    background: rgba(255, 255, 255, 0.8);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.1);
+
+    .icon-text {
+      font-size: 28rpx;
+    }
+  }
 }
 
 .quick-questions {
-	background-color: white;
-	padding: 20rpx;
-	margin: 20rpx;
-	border-radius: 20rpx;
+  background: rgba(255, 255, 255, 0.95);
+  backdrop-filter: blur(20rpx);
+  margin: 20rpx 30rpx;
+  border-radius: 24rpx;
+  padding: 24rpx;
+  box-shadow: 0 8rpx 32rpx rgba(255, 138, 128, 0.2);
+  border: 1rpx solid rgba(255, 255, 255, 0.3);
 
-	.question-grid {
-		display: flex;
-		flex-wrap: wrap;
-		gap: 20rpx;
+  .section-title {
+    font-size: 32rpx;
+    font-weight: 600;
+    color: #FF8A80;
+    margin-bottom: 20rpx;
+    display: block;
+  }
 
-		:deep(.u-button) {
-			margin: 0;
-		}
-	}
+  .question-grid {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 20rpx;
+
+    .question-button {
+      background: rgba(255, 138, 128, 0.1);
+      border: 2rpx solid rgba(255, 138, 128, 0.3);
+      border-radius: 20rpx;
+      padding: 16rpx 24rpx;
+      transition: all 0.3s ease;
+
+      &:active {
+        background: rgba(255, 138, 128, 0.2);
+        transform: scale(0.98);
+      }
+
+      .question-text {
+        font-size: 26rpx;
+        color: #FF8A80;
+        font-weight: 500;
+      }
+    }
+  }
 }
 
-.chat-area {
-	flex: 1;
-	padding: 20rpx;
+.chat-messages {
+  margin-top: 20rpx;
+  flex: 1;
+  overflow: hidden;
+}
+
+.chat-scroll {
+  width: 100%;
+  height: 100%;
 }
 
 .message-list {
-	.message-item {
-		display: flex;
-		margin-bottom: 30rpx;
-		align-items: flex-start;
+  padding: 20rpx 0;
+  padding-bottom: 80rpx;
+  min-height: 100%;
+  box-sizing: border-box;
+}
 
-		&.user-message {
-			flex-direction: row-reverse;
+.message-item {
+  display: flex;
+  margin-bottom: 24rpx;
+  align-items: flex-start;
+}
 
-			.message-content {
-				background-color: #4ecdc4;
-				margin-right: 20rpx;
-				border-radius: 20rpx 20rpx 8rpx 20rpx;
+.message-item.user {
+  justify-content: flex-end;
+  padding: 0 10rpx 0 80rpx;
+}
 
-				:deep(.u-text) {
-					color: white !important;
-				}
-			}
-		}
+.message-item.ai {
+  justify-content: flex-start;
+  padding: 0 80rpx 0 10rpx;
+}
 
-		&.ai-message {
-			.message-content {
-				background-color: white;
-				margin-left: 20rpx;
-				border-radius: 20rpx 20rpx 20rpx 8rpx;
-				box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.1);
+.message-avatar {
+  width: 64rpx;
+  height: 64rpx;
+  margin: 0 16rpx;
+  flex-shrink: 0;
+}
 
-				&.thinking {
-					display: flex;
-					align-items: center;
-					padding: 20rpx;
-				}
-			}
-		}
-	}
+.assistant-avatar, .user-avatar {
+  width: 100%;
+  height: 100%;
+  border-radius: 32rpx;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 32rpx;
+}
+
+.assistant-avatar {
+  background: linear-gradient(135deg, #FF8A80, #FFB6C1);
+  box-shadow: 0 8rpx 24rpx rgba(255, 138, 128, 0.3);
+}
+
+.user-avatar {
+  background: linear-gradient(135deg, #81C784, #A5D6A7);
+  box-shadow: 0 8rpx 24rpx rgba(129, 199, 132, 0.3);
+}
+
+.avatar-emoji {
+  color: #ffffff;
 }
 
 .message-content {
-	max-width: 70%;
-	padding: 20rpx;
-
-	:deep(.u-text) {
-		line-height: 1.5;
-		word-break: break-word;
-		white-space: pre-wrap;
-	}
+  display: flex;
+  flex-direction: column;
+  max-width: 65%;
 }
 
-.input-area {
-	background-color: white;
-	padding: 20rpx 30rpx;
-	border-top: 1rpx solid #eee;
+.message-content.user {
+  align-items: flex-end;
+}
 
-	.input-container {
-		display: flex;
-		align-items: center;
-		gap: 20rpx;
+.message-content.ai {
+  align-items: flex-start;
+}
 
-		:deep(.u-input) {
-			flex: 1;
-		}
-	}
+.message-bubble {
+  padding: 20rpx 24rpx;
+  border-radius: 24rpx;
+  word-wrap: break-word;
+  position: relative;
+}
+
+.message-bubble.ai {
+  background: rgba(255, 255, 255, 0.95);
+  backdrop-filter: blur(10rpx);
+  box-shadow: 0 4rpx 16rpx rgba(0, 0, 0, 0.1);
+  border-bottom-left-radius: 8rpx;
+}
+
+.message-bubble.ai.typing-bubble {
+  padding: 24rpx;
+}
+
+.message-bubble.user {
+  background: linear-gradient(135deg, #FF8A80 0%, #FFB6C1 100%);
+  box-shadow: 0 4rpx 16rpx rgba(255, 138, 128, 0.3);
+  border-bottom-right-radius: 8rpx;
+}
+
+.message-text {
+  font-size: 28rpx;
+  line-height: 1.4;
+  color: #333333;
+}
+
+.message-bubble.user .message-text {
+  color: #ffffff;
+}
+
+.message-time {
+  margin-top: 8rpx;
+  font-size: 20rpx;
+  color: rgba(255, 255, 255, 0.7);
+}
+
+.message-content.user .message-time {
+  text-align: right;
+}
+
+.message-content.ai .message-time {
+  text-align: left;
+}
+
+.typing-dots {
+  display: flex;
+  gap: 8rpx;
+  justify-content: center;
+
+  .typing-dot {
+    width: 12rpx;
+    height: 12rpx;
+    border-radius: 50%;
+    background-color: #FF8A80;
+    animation: typing 1.4s infinite ease-in-out;
+
+    &:nth-child(1) { animation-delay: -0.32s; }
+    &:nth-child(2) { animation-delay: -0.16s; }
+  }
+}
+
+@keyframes typing {
+  0%, 80%, 100% {
+    transform: scale(0.8);
+    opacity: 0.5;
+  }
+  40% {
+    transform: scale(1);
+    opacity: 1;
+  }
+}
+
+.chat-input-area {
+  background: rgba(255, 255, 255, 0.95);
+  backdrop-filter: blur(20rpx);
+  padding: 16rpx 20rpx;
+  //padding-bottom: calc(16rpx + env(safe-area-inset-bottom));
+  border-top: 1rpx solid rgba(255, 255, 255, 0.2);
+}
+
+.input-container {
+  display: flex;
+  align-items: center;
+  gap: 16rpx;
+
+  .input-wrapper {
+    flex: 1;
+    background: rgba(255, 255, 255, 0.9);
+    border-radius: 28rpx;
+    padding: 0 20rpx;
+    backdrop-filter: blur(10rpx);
+    border: 1rpx solid rgba(255, 255, 255, 0.3);
+    height: 56rpx;
+    display: flex;
+    align-items: center;
+
+    .message-input {
+      width: 100%;
+      height: 100%;
+      font-size: 28rpx;
+      color: #333333;
+      border: none;
+      outline: none;
+      background: transparent;
+    }
+  }
+
+  .send-button {
+    padding: 12rpx 20rpx;
+    border-radius: 24rpx;
+    background: rgba(200, 200, 200, 0.5);
+    transition: all 0.3s ease;
+
+    .send-text {
+      font-size: 28rpx;
+      color: #666666;
+      font-weight: 500;
+    }
+  }
+
+  .send-button.active {
+    background: linear-gradient(135deg, #FF8A80 0%, #FFB6C1 100%);
+    box-shadow: 0 4rpx 16rpx rgba(255, 138, 128, 0.4);
+
+    .send-text {
+      color: #ffffff;
+    }
+  }
 }
 </style>