feat: 完成项目基础功能搭建与样式优化

1.  新增评估选择组件、本地草稿存储与新闻/金融内容服务
2.  重构页面布局与样式：调整按钮阴影、图标尺寸、导航栏样式
3.  更新启动页、报告页、消息中心等页面UI与交互逻辑
4.  替换图标资源，调整禁用态透明度
5.  补充README文档与本地数据模拟实现

components/AppHeader.uvue

@@ -2,7 +2,7 @@
 	<view class="header-wrap">
 		<view class="status-bar" :style="statusStyle(0)"></view>
 		<view class="app-header">
-			<view class="header-side" @click="handleBack"><AppIcon v-if="back" name="chevron-right" :size="34" class="back-icon" /></view>
+			<view class="header-side" @click="handleBack"><AppIcon v-if="back" name="chevron-right" :size="48" class="back-icon" /></view>
 			<text class="header-title">{{ title }}</text>
 			<view class="header-side header-right"><slot></slot></view>
 		</view>
@@ -13,9 +13,11 @@
 	import { usePageLayout } from '@/services/layout.uts'
 	const { statusStyle } = usePageLayout()
 	import AppIcon from '@/components/AppIcon.uvue'
-	const props = defineProps({ title: { type: String, default: '' }, back: { type: Boolean, default: true } })
+	const props = defineProps({ title: { type: String, default: '' }, back: { type: Boolean, default: true }, customBack: { type: Boolean, default: false } })
+	const emit = defineEmits(['back'])
 	const handleBack = () => {
 		if (!props.back) return
+		if (props.customBack) { emit('back'); return }
 		const pages = getCurrentPages()
 		if (pages.length > 1) uni.navigateBack({ delta: 1 })
 		else uni.reLaunch({ url: '/pages/home/home' })
@@ -26,7 +28,7 @@
 	.header-wrap { background-color: #ffffff; }
 	.status-bar {  }
 	.app-header { height: 96rpx; padding: 0 24rpx; flex-direction: row; align-items: center; justify-content: space-between; border-bottom: 1rpx solid #edf1f7; }
-	.header-side { width: 100rpx; height: 96rpx; align-items: flex-start; justify-content: center; }
+	.header-side { width: 88rpx; height: 96rpx; align-items: flex-start; justify-content: center; flex-shrink: 0; }
 	.header-right { align-items: flex-end; }
 	.back-icon { transform: rotate(180deg); margin-top: 0; }
 	.header-title { font-size: 34rpx; font-weight: 700; color: #111d35; }

components/AppIcon.uvue

@@ -16,5 +16,5 @@ display: block;
 /* #endif */
  flex-shrink: 0; transform: scale(1.2); }
 	.vector-icon { transform: none; }
-	.muted-icon { opacity: .48; }
+	.muted-icon { opacity: .70; }
 </style>

components/AssessmentSelect.uvue

@@ -0,0 +1,16 @@
+<template>
+	<view class="select-row" @click="choose"><text class="select-label">{{ label }}</text><text :class="modelValue.length > 0 ? 'select-value' : 'select-value select-placeholder'">{{ modelValue.length > 0 ? modelValue : '请选择' }}</text><view class="select-arrow"><AppIcon name="chevron-right" :size="28" /></view></view>
+</template>
+<script setup lang="uts">
+	import AppIcon from '@/components/AppIcon.uvue'
+	const props = defineProps({ label: { type: String, default: '' }, modelValue: { type: String, default: '' }, options: { type: Array as PropType<string[]>, default: () => [] as string[] } })
+	const emit = defineEmits(['update:modelValue'])
+	const choose = () => { uni.showActionSheet({ itemList: props.options, success: (result) => { if (result.tapIndex >= 0 && result.tapIndex < props.options.length) emit('update:modelValue', props.options[result.tapIndex]) } }) }
+</script>
+<style>
+	.select-row { min-height: 106rpx; flex-direction: row; align-items: center; border-bottom: 1rpx solid #edf1f6; }
+	.select-label { font-size: 28rpx; color: #29374e; margin-right: 16rpx; flex-shrink: 0; }
+	.select-value { flex: 1; min-width: 0; text-align: right; color: #22324a; font-size: 27rpx; line-height: 38rpx; }
+	.select-placeholder { color: #8995a7; }
+	.select-arrow { width: 32rpx; height: 32rpx; margin-left: 12rpx; align-items: center; justify-content: center; transform: rotate(90deg); }
+</style>

components/BottomNav.uvue

@@ -1,23 +1,29 @@
 <template>
-	<view class="bottom-nav">
-		<view class="nav-item" @click="go('/pages/home/home')"><view :class="active == 'home' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="home" :size="43" :muted="active != 'home'" /></view><text :class="active == 'home' ? 'nav-label active-label' : 'nav-label'">首页</text></view>
-		<view class="nav-item" @click="go('/pages/news/news')"><view :class="active == 'news' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="trend-up" :size="43" :muted="active != 'news'" /></view><text :class="active == 'news' ? 'nav-label active-label' : 'nav-label'">新闻</text></view>
-		<view class="nav-item" @click="go('/pages/messages/messages')"><view :class="active == 'message' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="message" :size="43" :muted="active != 'message'" /></view><text :class="active == 'message' ? 'nav-label active-label' : 'nav-label'">消息</text></view>
-		<view class="nav-item" @click="go('/pages/profile/profile')"><view :class="active == 'profile' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="user" :size="43" :muted="active != 'profile'" /></view><text :class="active == 'profile' ? 'nav-label active-label' : 'nav-label'">我的</text></view>
+	<view class="bottom-nav" :style="bottomStyle(14)">
+		<view class="nav-item" @click="go('/pages/home/home')"><view :class="active == 'home' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="home" :size="54" :muted="active != 'home'" /></view><text :class="active == 'home' ? 'nav-label active-label' : 'nav-label'">首页</text></view>
+		<view class="nav-item" @click="go('/pages/news/news')"><view :class="active == 'news' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="file-text" :size="54" :muted="active != 'news'" /></view><text :class="active == 'news' ? 'nav-label active-label' : 'nav-label'">新闻</text></view>
+		<view class="nav-item" @click="go('/pages/messages/messages')"><view :class="active == 'message' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="message" :size="54" :muted="active != 'message'" /></view><text :class="active == 'message' ? 'nav-label active-label' : 'nav-label'">消息</text></view>
+		<view class="nav-item" @click="go('/pages/profile/profile')"><view :class="active == 'profile' ? 'nav-icon active-icon' : 'nav-icon'"><AppIcon name="user" :size="54" :muted="active != 'profile'" /></view><text :class="active == 'profile' ? 'nav-label active-label' : 'nav-label'">我的</text></view>
 	</view>
 </template>
 
 <script setup lang="uts">
 	import AppIcon from '@/components/AppIcon.uvue'
+	import { usePageLayout } from '@/services/layout.uts'
+	const { bottomStyle } = usePageLayout()
 	defineProps({ active: { type: String, default: 'home' } })
-	const go = (url: string) => { uni.redirectTo({ url: url }) }
+	const go = (url: string) => {
+		const pages = getCurrentPages()
+		if (pages.length > 0 && '/' + pages[pages.length - 1].route == url) return
+		uni.reLaunch({ url: url })
+	}
 </script>
 
 <style>
-	.bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; height: 130rpx; padding-bottom: env(safe-area-inset-bottom); background-color: #ffffff; border-top: 1rpx solid #e7edf6; flex-direction: row; box-shadow: 0 -10rpx 30rpx rgba(18, 38, 75, 0.06); }
+	.bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; min-height: 130rpx; background-color: #ffffff; border-top: 1rpx solid #e7edf6; flex-direction: row; box-shadow: 0 -6rpx 18rpx rgba(18, 38, 75, 0.04); }
 	.nav-item { flex: 1; height: 116rpx; align-items: center; justify-content: center; }
-	.nav-icon { width: 60rpx; height: 60rpx; border-radius: 18rpx; align-items: center; justify-content: center; background-color: #f0f4f9; }
-	.active-icon { background-color: #e6f0ff; }
-	.nav-label { margin-top: 7rpx; font-size: 21rpx; color: #7b8799; }
+	.nav-icon { width: 64rpx; height: 60rpx; border-radius: 18rpx; align-items: center; justify-content: center; }
+	.active-icon { background-color: #edf5ff; }
+	.nav-label { margin-top: 7rpx; font-size: 24rpx; color: #64748b; }
 	.active-label { color: #0868f7; font-weight: 700; }
 </style>