mechanicStore-app/components/CustomBottomNav.uvue

<template>
	<view class="bottom-nav">
		<!-- 底座（可加背景色或阴影） -->
		<view class="tabbar-platform">
		</view>
		<view v-for="(item, index) in tabs" :key="index" class="nav-item" :class="{ active: currentIndex === index }"
		@click="handleClick(index)">
			<text class="nav-text">
				{{ item.text }}
			</text>
		</view>
	</view>
</template>

<script setup lang="ts">
	// Props & Emits
	interface TabItem {
		text : string;
	}

	interface Props {
		currentIndex : number;
	}

	const props = defineProps<Props>();
	const emit = defineEmits<{
		(e : 'change', index : number) : void;
	}>();

	// 配置数据（可从 props 接收）
	const tabs : TabItem[] = [
		{ text: '小丁' },
		{ text: '理疗' },
		{ text: '预约' },
		{ text: '商户' },
		{ text: '我的' }
	];

	// 方法
	const handleClick = (index : number) => {
		emit('change', index);
	};
</script>

<style scoped>
	.tabbar-platform{
		background-color: #ffffff;
		box-shadow: 0 -4rpx 20rpx rgba(0, 0, 0, 0.1);
		height: 100rpx;
		position: fixed;
		bottom: 0;
		left: 0;
		right: 0;
	}
	/* 底部导航容器 */
	.bottom-nav {
		position: fixed;
		bottom: 0;
		left: 0;
		right: 0;
		display: flex;
		flex-direction: row;
		justify-content: space-around;
		align-items: flex-end;
		padding: 10rpx 0 ;

		z-index: 1;
	}

	/* 单个导航项 */
	.nav-item {
		width: 80rpx;
		height: 80rpx;
		border-radius: 40rpx;
		/* half of width to make circle */
		display: flex;
		justify-content: center;
		align-items: center;
		background-color: #ffa500;
		/* 橙色背景 */
		color: #ffffff;
		/* 白色文字 */
		font-size: 26rpx;
		font-weight: bold;
		transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
		position: relative;
	}

	/* 选中状态 */
	.nav-item.active {
		width: 110rpx;
		height: 110rpx;
		transform: translateY(-10rpx);
		/* 上浮 */
		z-index: 10;
		background-color: #ffffff;
		/* 白底 */
		color: #ffa500;
		/* 橙色文字 */
		box-shadow: 0 8rpx 20rpx rgba(255, 165, 0, 0.4);
	}

	/* 文字样式 */
	.nav-text {
		line-height: 1;
	}
</style>