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<template>
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<view class="app-page" :class="themeClass">
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<section-card title="月度预算" subtitle="设置总预算与分类预算，控制消费节奏">
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<view class="budget-hero surface-strong">
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<view>
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<text class="tiny-text">本月总预算</text>
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<text class="budget-number">{{ formatCurrency(totalBudget) }}</text>
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</view>
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<view>
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<text class="tiny-text">本月已支出</text>
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<text class="budget-number negative">{{ formatCurrency(spentTotal) }}</text>
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</view>
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</view>
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<view class="progress-track">
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<view class="progress-fill" :style="{ width: usagePercentWidth }"></view>
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</view>
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<view class="budget-foot">
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<text class="tiny-text">使用进度 {{ usagePercentLabel }}</text>
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<text class="tiny-text">{{ remainingBudget >= 0 ? `剩余 ${formatCurrency(remainingBudget)}` : `已超支 ${formatCurrency(Math.abs(remainingBudget))}` }}</text>
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</view>
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<view class="budget-foot secondary-foot">
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<text class="tiny-text">{{ totalBudget ? `日均可用 ${formatCurrency(dailyAllowance)}` : '设置预算后可查看剩余额度分配' }}</text>
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</view>
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<view class="editor-row">
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<view class="input-shell"><input v-model="totalBudgetInput" type="digit" placeholder="输入本月总预算" /></view>
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<view class="primary-button save-btn" @click="saveTotalBudget">保存</view>
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</view>
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</section-card>
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<section-card v-if="overBudgetRows.length" title="超支提醒" subtitle="当前分类预算已被突破，建议尽快调整">
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<view class="alert-list">
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<view v-for="item in overBudgetRows" :key="item.id" class="alert-item">
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<text class="alert-title">{{ item.name }}</text>
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<text class="alert-text">预算 {{ formatCurrency(item.budget) }}，已支出 {{ formatCurrency(item.spent) }}</text>
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</view>
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</view>
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</section-card>
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<section-card title="分类预算" subtitle="为高频分类分别设置预算，减少超支风险">
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<view class="category-list">
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<view v-for="item in categoryRows" :key="item.id" class="category-card surface-strong">
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<view class="category-head">
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<view class="category-title-row">
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<view class="category-dot" :style="{ background: item.color }"></view>
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<text class="category-title">{{ item.name }}</text>
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</view>
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<text class="tiny-text">已花 {{ formatCurrency(item.spent) }}</text>
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</view>
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<view class="progress-track thin-track">
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<view class="progress-fill" :style="{ width: item.progressWidth }"></view>
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</view>
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<view class="budget-foot">
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<text class="tiny-text">预算 {{ formatCurrency(item.budget) }}</text>
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<text class="tiny-text" :class="item.budget > 0 && item.spent > item.budget ? 'negative' : ''">{{ item.progressLabel }}</text>
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</view>
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<view class="editor-row">
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<view class="input-shell"><input v-model="categoryBudgetDrafts[item.id]" type="digit" placeholder="设置分类预算" /></view>
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<view class="ghost-button save-btn" @click="saveCategoryBudget(item.id)">保存</view>
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</view>
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</view>
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</view>
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</section-card>
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<app-tab-bar current="budget" />
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</view>
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</template>
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<script setup>
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import { computed, reactive, ref, watch } from 'vue'
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import SectionCard from '../../components/SectionCard.vue'
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import AppTabBar from '../../components/AppTabBar.vue'
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import { useAppStore } from '../../utils/store'
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import { getDaysLeftInMonth, isSameMonth, toMonthKey } from '../../utils/date'
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import { clampPercent, formatCurrency, formatPercent } from '../../utils/money'
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const store = useAppStore()
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const currentMonth = computed(() => toMonthKey())
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const themeClass = computed(() => (store.state.settings.theme === 'dark' ? 'theme-dark' : ''))
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const totalBudgetInput = ref(String(store.state.budgets.total || ''))
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const categoryBudgetDrafts = reactive({})
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const expenseBills = computed(() => store.state.bills.filter((item) => item.type === 'expense' && isSameMonth(item.date, currentMonth.value)))
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const spentTotal = computed(() => expenseBills.value.reduce((sum, item) => sum + Number(item.amount), 0))
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const totalBudget = computed(() => Number(store.state.budgets.total) || 0)
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const remainingBudget = computed(() => totalBudget.value - spentTotal.value)
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const dailyAllowance = computed(() => Math.max(remainingBudget.value, 0) / Math.max(1, getDaysLeftInMonth(currentMonth.value)))
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const usagePercentLabel = computed(() => (totalBudget.value ? formatPercent(spentTotal.value / Math.max(totalBudget.value, 1)) : '未设置'))
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const usagePercentWidth = computed(() => clampPercent(spentTotal.value / Math.max(totalBudget.value || 1, 1)))
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const categoryRows = computed(() => store.state.categories.expense.map((category) => {
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const spent = expenseBills.value
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.filter((item) => item.categoryId === category.id)
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.reduce((sum, item) => sum + Number(item.amount), 0)
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const budget = Number(store.state.budgets.categoryBudgets[category.id] || 0)
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return {
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...category,
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spent,
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budget,
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progressLabel: budget ? formatPercent(spent / Math.max(budget, 1)) : '未设置',
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progressWidth: clampPercent(spent / Math.max(budget || 1, 1))
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}
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}))
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const overBudgetRows = computed(() => categoryRows.value.filter((item) => item.budget > 0 && item.spent > item.budget))
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watch(
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() => store.state.budgets.total,
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(value) => {
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totalBudgetInput.value = String(value || '')
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},
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{ immediate: true }
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)
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watch(
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categoryRows,
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(rows) => {
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rows.forEach((item) => {
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categoryBudgetDrafts[item.id] = String(item.budget || '')
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})
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},
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{ immediate: true }
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)
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function saveTotalBudget() {
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store.setBudgetTotal(totalBudgetInput.value)
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uni.showToast({ title: '总预算已保存', icon: 'none' })
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}
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function saveCategoryBudget(categoryId) {
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store.setCategoryBudget(categoryId, categoryBudgetDrafts[categoryId])
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uni.showToast({ title: '分类预算已保存', icon: 'none' })
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}
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</script>
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<style lang="scss" scoped>
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.budget-hero,
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.category-card {
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padding: 24rpx;
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border-radius: 24rpx;
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}
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.budget-hero,
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.category-head,
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.category-title-row,
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.budget-foot,
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.editor-row {
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display: flex;
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align-items: center;
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justify-content: space-between;
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gap: 16rpx;
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}
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.secondary-foot {
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margin-top: 10rpx;
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}
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.budget-number {
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display: block;
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margin-top: 10rpx;
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font-size: 34rpx;
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font-weight: 700;
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color: var(--text-primary);
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}
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.progress-track {
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overflow: hidden;
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height: 18rpx;
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margin: 24rpx 0 16rpx;
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border-radius: 999rpx;
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background: var(--surface-muted);
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}
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.thin-track {
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height: 14rpx;
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margin: 18rpx 0 14rpx;
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}
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.progress-fill {
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height: 100%;
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border-radius: inherit;
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background: linear-gradient(90deg, #5f8df5 0%, #1f6f5f 100%);
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}
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.editor-row {
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margin-top: 20rpx;
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}
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.editor-row .input-shell {
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flex: 1;
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}
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.save-btn {
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flex: 0 0 180rpx;
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}
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.alert-list,
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.category-list {
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display: flex;
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flex-direction: column;
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gap: 18rpx;
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}
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.alert-item {
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padding: 20rpx 22rpx;
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border-radius: 22rpx;
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background: var(--danger-soft);
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}
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.alert-title {
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font-size: 28rpx;
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font-weight: 600;
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color: var(--danger);
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}
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.alert-text {
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display: block;
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margin-top: 8rpx;
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font-size: 22rpx;
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color: var(--danger);
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}
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.category-dot {
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width: 16rpx;
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height: 16rpx;
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border-radius: 50%;
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}
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.category-title {
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font-size: 28rpx;
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font-weight: 600;
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color: var(--text-primary);
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}
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</style>
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