<template>
    <view class="page" :style="rootStyle">
        <!-- ===== 页头 ===== -->
        <view class="page-header">
            <view class="header-main">
                <text class="page-title">握力环训练</text>
                <text class="page-subtitle">跟随节奏 · 握紧停顿 · 完全放松</text>
            </view>
            <view class="status-pill" :class="{ active: isPlaying, paused: isPaused }">
                <view class="status-dot" />
                <text class="status-text">{{ statusText }}</text>
            </view>
        </view>

        <!-- ===== 握力环画布区域 ===== -->
        <view class="stage-canvas-wrapper">
            <GripRingCanvas
                ref="gripCanvasRef"
                :bpm="currentBpm"
                :is-playing="isPlaying"
                :hint-text="centerHintText"
                @toggle-play="onTogglePlay"
            />

            <view class="bgm-toggle" @click="toggleBgm">
                <text class="bgm-icon">{{ bgmEnabled ? '🎵' : '🔇' }}</text>
            </view>

            <!-- 倒计时浮标(仅有目标且训练已开始时显示) -->
            <view v-if="remainingSeconds !== null && hasStats" class="countdown-badge">
                <text class="countdown-label">剩余</text>
                <text class="countdown-value">{{ formatTime(remainingSeconds) }}</text>
            </view>
        </view>

        <!-- ===== 控制面板：统计 + 档位 + 目标 ===== -->
        <view class="control-deck" :class="{ 'is-playing': isPlaying, 'is-paused': isPaused }">
            <view class="stats-row">
                <view class="stat-chip">
                    <text class="stat-chip-label">次数</text>
                    <text class="stat-chip-value" :class="{ muted: !hasStats }">{{ hasStats ? totalReps : '—' }}</text>
                </view>
                <view class="stat-chip">
                    <text class="stat-chip-label">时长</text>
                    <text class="stat-chip-value" :class="{ muted: !hasStats }">{{ hasStats ? formatTime(elapsedSeconds) : '—' }}</text>
                </view>
                <view class="stat-chip">
                    <text class="stat-chip-label">糖分</text>
                    <text class="stat-chip-value" :class="{ muted: !hasStats }">{{ hasStats ? `${totalSugar.toFixed(1)}g` : '—' }}</text>
                </view>
            </view>

            <view class="deck-divider" />

            <view class="presets-block">
                <view class="presets-header">
                    <text class="presets-title">训练强度</text>
                    <text v-if="isPlaying" class="presets-hint">训练中不可切换</text>
                </view>
                <view class="presets">
                    <view
                        v-for="p in GRIP_PRESETS"
                        :key="p.id"
                        class="preset"
                        :class="{ active: currentPreset === p.id, disabled: isPlaying }"
                        @click="onPresetTap(p.id)"
                    >
                        <text class="preset-icon">{{ PRESET_ICONS[p.id] }}</text>
                        <text class="preset-name">{{ p.label }}</text>
                        <text class="preset-bpm">{{ p.bpm }} BPM</text>
                        <text class="preset-desc">{{ p.desc }}</text>
                    </view>
                </view>
            </view>

            <view class="deck-divider" />

            <view class="target-block">
                <view class="target-header">
                    <text class="target-title">训练目标</text>
                    <text class="target-hint">到时间自动结束</text>
                </view>
                <view class="target-chips">
                    <view
                        v-for="t in TARGET_OPTIONS"
                        :key="t.minutes"
                        class="target-chip"
                        :class="{ active: targetMinutes === t.minutes, disabled: isPlaying }"
                        @click="onTargetTap(t.minutes)"
                    >
                        <text class="target-chip-text">{{ t.label }}</text>
                    </view>
                </view>
            </view>

            <!-- 仅暂停时显示一行提示 + 结束训练文字链 -->
            <view v-if="isPaused" class="action-bar">
                <text class="paused-hint-text">已暂停 · 点击握力环继续</text>
                <text class="end-link" @click="onEndTraining">结束训练 ›</text>
            </view>
        </view>

        <!-- ===== 奖励弹窗 ===== -->
        <view v-if="showRewardPopup" class="reward-popup-mask" @click="closeRewardPopup">
            <view class="reward-popup" @click.stop>
                <text class="reward-emoji">{{ currentReward.emoji }}</text>
                <text class="reward-title">{{ currentReward.title }}</text>
                <text class="reward-desc">{{ currentReward.desc }}</text>
                <text class="reward-count">已完成 {{ totalReps }} 次</text>
                <view class="reward-btn" @click="closeRewardPopup">继续加油</view>
            </view>
        </view>

        <!-- ===== 动作要领 ===== -->
        <view class="tips-strip">
            <view v-for="(tip, i) in TIPS" :key="i" class="tip-chip">
                <text class="tip-text">{{ tip }}</text>
            </view>
        </view>

        <!-- ===== 训练完成（浮层） ===== -->
        <view v-if="showSummary" class="summary-mask" @click="dismissSummary">
            <view class="completion-card" @click.stop>
            <view class="completion-header">
                <text class="completion-emoji">🎉</text>
                <text class="completion-title">训练完成</text>
                <text class="completion-subtitle">辛苦啦,休息一下吧</text>
            </view>

            <view class="completion-content">
                <!-- 核心统计 -->
                <view class="stats-grid">
                    <view class="stat-item">
                        <text class="stat-icon">💪</text>
                        <text class="stat-value">{{ totalReps }}</text>
                        <text class="stat-label">总次数</text>
                    </view>
                    <view class="stat-item">
                        <text class="stat-icon">⏱️</text>
                        <text class="stat-value">{{ formatTime(elapsedSeconds) }}</text>
                        <text class="stat-label">总时长</text>
                    </view>
                    <view class="stat-item">
                        <text class="stat-icon">🔥</text>
                        <text class="stat-value">{{ totalSugar.toFixed(1) }}g</text>
                        <text class="stat-label">消耗糖分</text>
                    </view>
                </view>

                <!-- 食物对照 -->
                <view v-if="sugarComparisons.length > 0" class="food-comparison-card">
                    <view class="food-comparison-header">
                        <text class="food-comparison-title">相当于消耗了</text>
                        <text class="food-comparison-hint">这些食物的糖分 🍭</text>
                    </view>

                    <view class="food-list">
                        <view
                            v-for="(food, idx) in sugarComparisons"
                            :key="idx"
                            class="food-item"
                        >
                            <text class="food-emoji">{{ food.emoji }}</text>
                            <view class="food-info">
                                <text class="food-count">{{ food.count }}</text>
                                <text class="food-name">{{ food.unit }}{{ food.name }}</text>
                            </view>
                        </view>
                    </view>
                </view>
            </view>

            <view class="action-row">
                <button class="btn-share" open-type="share">
                    <text class="share-icon">📤</text>
                </button>
                <button class="btn-secondary" @click="onContinue">继续训练</button>
                <button class="btn-primary" @click="onRestart">再来一次</button>
            </view>
            </view>
        </view>
    </view>
</template>

<script setup lang="ts">
import { computed, ref, watch } from 'vue'
import { onShow, onHide, onShareAppMessage, onShareTimeline } from '@dcloudio/uni-app'
import { useMetronome } from '../hooks/useMetronome'
import GripRingCanvas from './components/grip-ring-canvas.vue'

type PresetId = 'light' | 'medium' | 'heavy'
interface GripPreset {
    id: PresetId
    bpm: number
    label: string
    desc: string
}

const GRIP_PRESETS: readonly GripPreset[] = [
    { id: 'light', bpm: 60, label: '轻度', desc: '热身 · 恢复' },
    { id: 'medium', bpm: 80, label: '中度', desc: '日常 · 锻炼' },
    { id: 'heavy', bpm: 100, label: '重度', desc: '强化 · 挑战' },
]

const PRESET_ICONS: Record<PresetId, string> = {
    light: '🌱',
    medium: '💪',
    heavy: '🔥',
}

const TIPS = ['握紧停 1 秒', '完全放松', '左右手交替'] as const

interface TargetOption {
    minutes: 0 | 5 | 10 | 15
    label: string
}

const TARGET_OPTIONS: readonly TargetOption[] = [
    { minutes: 0, label: '自由' },
    { minutes: 5, label: '5 分钟' },
    { minutes: 10, label: '10 分钟' },
    { minutes: 15, label: '15 分钟' },
]

// 奖励配置 - 按难度递增
interface RewardConfig {
    emoji: string
    title: string
    desc: string
    itemType: 'egg' | 'walnut' | 'can' | 'balloon'
    sound: string
    minReps: number // 最小触发次数
    maxReps: number // 最大触发次数
}

const REWARDS: RewardConfig[] = [
    {
        emoji: '🥚',
        title: '捏碎鸡蛋',
        desc: '握力不错！',
        itemType: 'egg',
        sound: 'https://gz-1349751149.cos.ap-guangzhou.myqcloud.com/uploads/file/20260528/202605280937077bad76716.mp3',
        minReps: 8,
        maxReps: 12
    },
    {
        emoji: '🌰',
        title: '捏碎核桃',
        desc: '力量惊人！',
        itemType: 'walnut',
        sound: 'https://gz-1349751149.cos.ap-guangzhou.myqcloud.com/uploads/file/20260528/20260528093707b021f5794.mp3',
        minReps: 15,
        maxReps: 20
    },
    {
        emoji: '🥫',
        title: '捏扁易拉罐',
        desc: '太强了！',
        itemType: 'can',
        sound: 'https://gz-1349751149.cos.ap-guangzhou.myqcloud.com/uploads/file/20260528/20260528093707ebd4d5733.mp3',
        minReps: 25,
        maxReps: 30
    },
    {
        emoji: '🎈',
        title: '捏爆气球',
        desc: '完美！',
        itemType: 'balloon',
        sound: 'https://gz-1349751149.cos.ap-guangzhou.myqcloud.com/uploads/file/20260528/20260528093707016f07427.mp3',
        minReps: 40,
        maxReps: 50
    },
]

// 背景音乐 URL
const BGM_URL = 'https://gz-1349751149.cos.ap-guangzhou.myqcloud.com/uploads/file/20260528/20260528093709c669f4659.mp3'

// 食物糖分对照表 (每100g含糖量)
const FOOD_SUGAR_TABLE = [
    { emoji: '🍬', name: '糖果', sugar: 95.0, unit: '颗', weight: 5 },     // 1颗糖果约5g
    { emoji: '🍪', name: '饼干', sugar: 65.0, unit: '块', weight: 10 },    // 1块饼干约10g
    { emoji: '🍫', name: '巧克力', sugar: 51.5, unit: '块', weight: 50 },  // 1块巧克力约50g
    { emoji: '🍎', name: '苹果', sugar: 10.3, unit: '个', weight: 200 },   // 1个苹果约200g
    { emoji: '🍌', name: '香蕉', sugar: 12.2, unit: '根', weight: 120 },   // 1根香蕉约120g
    { emoji: '🍚', name: '米饭', sugar: 25.9, unit: '碗', weight: 150 },   // 1碗米饭约150g
    { emoji: '🥤', name: '可乐', sugar: 10.6, unit: '罐', weight: 330 },   // 1罐可乐330ml
]

const currentPreset = ref<PresetId>('medium')
const targetMinutes = ref<0 | 5 | 10 | 15>(0) // 训练目标(0=自由)
const gripCanvasRef = ref<any>(null)
const showRewardPopup = ref(false)
const showSummary = ref(false)
const currentReward = ref<RewardConfig>(REWARDS[0])
const crushAudioCtx = ref<UniApp.InnerAudioContext | null>(null)
const bgmAudioCtx = ref<UniApp.InnerAudioContext | null>(null)
const bgmEnabled = ref(true) // BGM 开关

// 训练统计
const totalReps = ref(0) // 总次数
const elapsedSeconds = ref(0) // 总时长(秒)
const totalSugar = ref(0) // 总消耗糖分(克)
const beatCount = ref(0) // 节拍计数
const rewardIndex = ref(0) // 当前奖励索引
const nextRewardAt = ref(0) // 下次奖励触发次数
const startTime = ref(0)
const timerInterval = ref<number | null>(null)

// 获取当前档位配置
const preset = computed(() => GRIP_PRESETS.find(p => p.id === currentPreset.value) || GRIP_PRESETS[1])
const currentBpm = computed(() => preset.value.bpm)

const metronome = useMetronome({
    initialBpm: currentBpm.value,
    accentEvery: 2,
    volume: 0.35, // 节拍音音量调小,避免木鱼声太大
    onBeat: onBeat,
})
const { isPlaying } = metronome

const intervalMs = computed(() => 60000 / currentBpm.value)
const hasStats = computed(() => isPlaying.value || totalReps.value > 0)
const isPaused = computed(() => !isPlaying.value && totalReps.value > 0 && !showSummary.value)

// 目标剩余秒数(targetMinutes=0 时返回 null,代表无目标)
const remainingSeconds = computed<number | null>(() => {
    if (targetMinutes.value === 0) return null
    const total = targetMinutes.value * 60
    return Math.max(0, total - elapsedSeconds.value)
})

// 环中心显示的提示文字
const centerHintText = computed(() => (isPaused.value ? '点击继续' : '点击开始'))

// 状态胶囊文字
const statusText = computed(() => {
    if (isPlaying.value) return '训练中'
    if (isPaused.value) return '已暂停'
    return '待开始'
})

// 分享文案
const shareTitle = computed(() => {
    if (totalReps.value === 0) return '握力环训练 · 一起练起来'
    return `刚刚完成 ${totalReps.value} 次握力训练，消耗 ${totalSugar.value.toFixed(1)}g 糖分 💪`
})


const rootStyle = computed(() => ({
    '--beat-duration': `${intervalMs.value}ms`,
}))

// 糖分对比 - 返回多个食物对照(显示用)
const sugarComparisons = computed(() => {
    if (totalSugar.value === 0) return []

    const results: Array<{ emoji: string; name: string; count: string; unit: string }> = []

    for (const food of FOOD_SUGAR_TABLE) {
        const foodSugar = (food.sugar * food.weight) / 100
        const count = totalSugar.value / foodSugar

        // 选择 0.1 ~ 50 范围内的食物展示
        if (count >= 0.1 && count <= 50) {
            results.push({
                emoji: food.emoji,
                name: food.name,
                count: count >= 10 ? Math.round(count).toString() : count.toFixed(1),
                unit: food.unit,
            })
        }
    }

    // 最多展示 3 个
    return results.slice(0, 3)
})

// 节拍回调
function onBeat() {
    beatCount.value++

    // 每2拍算1次
    if (beatCount.value % 2 === 0) {
        totalReps.value++

        // 检查是否触发奖励(递进式)
        if (totalReps.value >= nextRewardAt.value && rewardIndex.value < REWARDS.length) {
            triggerReward()
        }
    }
}

// 计算消耗糖分
// 握力环训练 MET ≈ 3.5, 消耗卡路里 = MET × 体重(kg) × 时长(小时)
// 1g 糖分 ≈ 4 kcal, 所以 糖分(g) = 卡路里 / 4
function calculateSugar(seconds: number): number {
    const hours = seconds / 3600
    const weight = 60 // 默认体重60kg
    const met = 3.5
    const calories = met * weight * hours
    return calories / 4 // 转换为糖分(克)
}

// 格式化时间
function formatTime(seconds: number): string {
    const mins = Math.floor(seconds / 60)
    const secs = seconds % 60
    return `${mins}:${secs.toString().padStart(2, '0')}`
}

// 触发奖励
function triggerReward() {
    // 获取当前等级的奖励
    const reward = REWARDS[rewardIndex.value]
    currentReward.value = reward

    // 立即触发粒子特效和音效
    gripCanvasRef.value?.triggerCrushEffect(reward.itemType)
    playCrushSound(reward.sound)

    // 递进到下一个奖励等级
    rewardIndex.value++

    // 计算下次奖励触发次数(如果还有下一级)
    if (rewardIndex.value < REWARDS.length) {
        const nextReward = REWARDS[rewardIndex.value]
        const range = nextReward.maxReps - nextReward.minReps
        nextRewardAt.value = totalReps.value + nextReward.minReps + Math.floor(Math.random() * (range + 1))
    }

    // 延迟 1200ms 显示弹窗,让粒子动画先完整播放
    setTimeout(() => {
        showRewardPopup.value = true
    }, 1200)
}

function closeRewardPopup() {
    showRewardPopup.value = false
}

function playCrushSound(sound: string) {
    // 如果没有音效URL,跳过播放
    if (!sound) return

    if (crushAudioCtx.value) {
        try {
            crushAudioCtx.value.destroy()
        } catch (_) {}
    }

    crushAudioCtx.value = uni.createInnerAudioContext()
    crushAudioCtx.value.src = sound
    crushAudioCtx.value.obeyMuteSwitch = false
    crushAudioCtx.value.volume = 0.6

    try {
        crushAudioCtx.value.play()
    } catch (_) {}
}

// 启动背景音乐
function startBgm() {
    if (!bgmEnabled.value) return

    // 如果已存在,直接 play
    if (bgmAudioCtx.value) {
        try {
            bgmAudioCtx.value.play()
        } catch (_) {}
        return
    }

    bgmAudioCtx.value = uni.createInnerAudioContext()
    bgmAudioCtx.value.src = BGM_URL
    bgmAudioCtx.value.loop = true
    bgmAudioCtx.value.obeyMuteSwitch = false
    bgmAudioCtx.value.volume = 0.4 // 背景音乐音量较低,不抢戏

    try {
        bgmAudioCtx.value.play()
    } catch (_) {}
}

// 停止背景音乐
function stopBgm() {
    if (bgmAudioCtx.value) {
        try {
            bgmAudioCtx.value.pause()
        } catch (_) {}
    }
}

// 切换 BGM 开关
function toggleBgm() {
    bgmEnabled.value = !bgmEnabled.value
    if (bgmEnabled.value && isPlaying.value) {
        startBgm()
    } else {
        stopBgm()
    }
}

// 档位切换 - 仅训练中禁用(暂停时可重新选)
function onPresetTap(id: PresetId) {
    if (isPlaying.value) return
    currentPreset.value = id
    metronome.setBpm(preset.value.bpm)
}

// 训练目标切换 - 训练中禁用
function onTargetTap(minutes: 0 | 5 | 10 | 15) {
    if (isPlaying.value) return
    targetMinutes.value = minutes
}

// 点击环:开始 / 暂停 / 继续(不再直接弹结算)
function onTogglePlay() {
    if (isPlaying.value) {
        pauseTraining()
    } else {
        if (totalReps.value === 0) {
            resetStats()
        }
        startTrainingInternal()
    }
}

function startTrainingInternal() {
    metronome.start()
    startBgm()
    startTimer()
    uni.setKeepScreenOn({ keepScreenOn: true })
}

function pauseTraining() {
    metronome.stop()
    stopBgm()
    stopTimer()
    uni.setKeepScreenOn({ keepScreenOn: false })
}

// 显式结束训练 - 弹结算页
function onEndTraining() {
    if (totalReps.value === 0) return
    pauseTraining()
    showSummary.value = true
}

function dismissSummary() {
    showSummary.value = false
}

function onContinue() {
    showSummary.value = false
    startTrainingInternal()
}

// 再来一次
function onRestart() {
    showSummary.value = false
    resetStats()
    startTrainingInternal()
}

// 重置统计
function resetStats() {
    totalReps.value = 0
    elapsedSeconds.value = 0
    totalSugar.value = 0
    beatCount.value = 0
    rewardIndex.value = 0
    startTime.value = Date.now()

    // 设置第一个奖励的触发次数
    const firstReward = REWARDS[0]
    const range = firstReward.maxReps - firstReward.minReps
    nextRewardAt.value = firstReward.minReps + Math.floor(Math.random() * (range + 1))
}

// 启动计时器
function startTimer() {
    if (timerInterval.value) return

    startTime.value = Date.now() - elapsedSeconds.value * 1000

    timerInterval.value = setInterval(() => {
        elapsedSeconds.value = Math.floor((Date.now() - startTime.value) / 1000)
        totalSugar.value = calculateSugar(elapsedSeconds.value)

        // 到达训练目标 → 自动结束
        if (targetMinutes.value > 0 && elapsedSeconds.value >= targetMinutes.value * 60) {
            onEndTraining()
        }
    }, 1000) as unknown as number
}

// 停止计时器
function stopTimer() {
    if (timerInterval.value) {
        clearInterval(timerInterval.value)
        timerInterval.value = null
    }
}

onShow(() => {
    metronome.preload()
})

// 分享给好友(微信小程序)
onShareAppMessage(() => ({
    title: shareTitle.value,
    path: '/training/pages/grip-ring',
}))

// 分享到朋友圈
onShareTimeline(() => ({
    title: shareTitle.value,
}))

onHide(() => {
    if (isPlaying.value) {
        metronome.stop()
        stopBgm()
        stopTimer()
        uni.setKeepScreenOn({ keepScreenOn: false })
    }
    if (crushAudioCtx.value) {
        try {
            crushAudioCtx.value.destroy()
        } catch (_) {}
    }
    if (bgmAudioCtx.value) {
        try {
            bgmAudioCtx.value.destroy()
        } catch (_) {}
        bgmAudioCtx.value = null
    }
})
</script>

<style lang="scss" scoped>
/* ============================================================
 * 设计 token
 * ============================================================ */
$bg-color: #f8fafc;
$card-bg: #ffffff;
$card-border: rgba(15, 23, 42, 0.06);
$text-1: #0f172a;
$text-2: #475569;
$text-3: #94a3b8;
$brand: #14b8a6;        /* 主品牌色:青绿(健康主题) */
$brand-soft: #ccfbf1;   /* 浅青绿背景 */
$brand-deep: #0f766e;   /* 深青绿文字 */
$radius-card: 24rpx;
$shadow-sm: 0 4rpx 12rpx rgba(15, 23, 42, 0.04);

/* ============================================================
 * 页面容器
 * ============================================================ */
.page {
    position: relative;
    min-height: 100vh;
    box-sizing: border-box;
    padding: 24rpx 28rpx calc(48rpx + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, #f0fdfa 0%, $bg-color 28%, $bg-color 100%);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 20rpx;
    color: $text-1;
    overflow-x: hidden;
}

/* ============================================================
 * 页头
 * ============================================================ */
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16rpx;
    flex-shrink: 0;
}

.header-main {
    display: flex;
    flex-direction: column;
    gap: 6rpx;
    flex: 1;
    min-width: 0;
}

.page-title {
    font-size: 40rpx;
    font-weight: 800;
    color: $text-1;
    letter-spacing: 1rpx;
    line-height: 1.2;
}

.page-subtitle {
    font-size: 24rpx;
    color: $text-3;
    line-height: 1.4;
}

.status-pill {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 8rpx;
    padding: 10rpx 18rpx;
    border-radius: 999rpx;
    background: rgba(255, 255, 255, 0.85);
    border: 2rpx solid $card-border;
    box-shadow: $shadow-sm;

    &.active {
        background: $brand-soft;
        border-color: rgba(20, 184, 166, 0.35);

        .status-dot {
            background: $brand;
            box-shadow: 0 0 0 4rpx rgba(20, 184, 166, 0.25);
            animation: status-pulse 1.2s ease-in-out infinite;
        }

        .status-text {
            color: $brand-deep;
        }
    }

    &.paused {
        background: #fef3c7;
        border-color: rgba(245, 158, 11, 0.4);

        .status-dot {
            background: #f59e0b;
        }

        .status-text {
            color: #92400e;
        }
    }
}

.status-dot {
    width: 12rpx;
    height: 12rpx;
    border-radius: 50%;
    background: $text-3;
}

.status-text {
    font-size: 22rpx;
    font-weight: 600;
    color: $text-2;
    white-space: nowrap;
}

@keyframes status-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.15);
        opacity: 0.85;
    }
}

/* ============================================================
 * 画布区域
 * ============================================================ */
.stage-canvas-wrapper {
    /* 用 calc 替代 100vw，避免右侧被裁切导致圆角不对称 */
    width: calc(100% + 56rpx);
    margin-left: -28rpx;
    margin-right: -28rpx;
    flex-shrink: 0;
    height: 520rpx;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    border-radius: 0 0 40rpx 40rpx;
    overflow: hidden;
    box-sizing: border-box;
}

/* ============================================================
 * BGM 开关
 * ============================================================ */
.bgm-toggle {
    position: absolute;
    top: 24rpx;
    right: 28rpx;
    width: 72rpx;
    height: 72rpx;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    box-shadow:
        0 4rpx 16rpx rgba(0, 0, 0, 0.1),
        0 0 0 2rpx rgba(20, 184, 166, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    transition: all 0.2s ease;

    &:active {
        transform: scale(0.92);
        background: #f0fdfa;
    }
}

.bgm-icon {
    font-size: 36rpx;
    line-height: 1;
}

/* ============================================================
 * 进度显示
 * ============================================================ */
.progress-bar {
    width: 100%;
    background: $card-bg;
    border-radius: $radius-card;
    padding: 20rpx 24rpx;
    box-shadow: $shadow-sm;
    margin-bottom: 20rpx;
}

.progress-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.progress-label {
    font-size: 26rpx;
    color: $text-2;
    font-weight: 600;
}

.progress-count {
    font-size: 32rpx;
    color: $brand-deep;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

/* ============================================================
 * 控制面板（统计 + 档位合一）
 * ============================================================ */
.control-deck {
    width: 100%;
    box-sizing: border-box;
    background: $card-bg;
    border-radius: 28rpx;
    padding: 24rpx 20rpx 20rpx;
    box-shadow:
        0 8rpx 32rpx rgba(15, 23, 42, 0.06),
        0 1rpx 0 rgba(255, 255, 255, 0.9) inset;
    border: 2rpx solid rgba(255, 255, 255, 0.8);
    transition: box-shadow 0.25s ease;

    &.is-playing {
        box-shadow:
            0 12rpx 40rpx rgba(20, 184, 166, 0.12),
            0 0 0 2rpx rgba(20, 184, 166, 0.12);
    }
}

.stats-row {
    display: flex;
    gap: 12rpx;
}

.stat-chip {
    flex: 1;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 20rpx;
    padding: 18rpx 8rpx 16rpx;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6rpx;
    border: 2rpx solid rgba(15, 23, 42, 0.04);
}

.stat-chip-label {
    font-size: 20rpx;
    color: $text-3;
    font-weight: 500;
}

.stat-chip-value {
    font-size: 34rpx;
    font-weight: 800;
    color: $brand-deep;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;

    &.muted {
        color: #cbd5e1;
        font-weight: 600;
    }
}

.deck-divider {
    height: 2rpx;
    margin: 20rpx 8rpx 18rpx;
    background: linear-gradient(90deg, transparent, $card-border, transparent);
}

.presets-block {
    display: flex;
    flex-direction: column;
    gap: 14rpx;
}

.presets-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4rpx;
}

.presets-title {
    font-size: 26rpx;
    font-weight: 700;
    color: $text-1;
}

.presets-hint {
    font-size: 20rpx;
    color: $text-3;
}

.presets {
    display: flex;
    gap: 12rpx;
}

.preset {
    flex: 1;
    background: #f8fafc;
    border: 2rpx solid transparent;
    border-radius: 20rpx;
    padding: 20rpx 6rpx 18rpx;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4rpx;
    transition: all 0.18s;

    .preset-icon {
        font-size: 32rpx;
        line-height: 1;
        margin-bottom: 4rpx;
    }

    .preset-name {
        font-size: 26rpx;
        font-weight: 700;
        color: $text-1;
    }
    .preset-bpm {
        font-size: 22rpx;
        color: $text-2;
        font-weight: 700;
        font-variant-numeric: tabular-nums;
    }
    .preset-desc {
        font-size: 18rpx;
        color: $text-3;
        text-align: center;
        line-height: 1.3;
    }

    &:active {
        transform: scale(0.97);
    }

    &.disabled {
        opacity: 0.45;
        pointer-events: none;
    }

    &.active {
        background: linear-gradient(160deg, $brand-soft 0%, #ecfeff 100%);
        border-color: $brand;
        box-shadow: 0 6rpx 16rpx rgba(20, 184, 166, 0.15);

        .preset-name,
        .preset-bpm {
            color: $brand-deep;
        }
        .preset-desc {
            color: $brand;
        }
    }
}

/* ============================================================
 * 训练目标 chips
 * ============================================================ */
.target-block {
    display: flex;
    flex-direction: column;
    gap: 14rpx;
}

.target-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4rpx;
}

.target-title {
    font-size: 26rpx;
    font-weight: 700;
    color: $text-1;
}

.target-hint {
    font-size: 20rpx;
    color: $text-3;
}

.target-chips {
    display: flex;
    gap: 12rpx;
}

.target-chip {
    flex: 1;
    height: 72rpx;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8fafc;
    border: 2rpx solid transparent;
    border-radius: 16rpx;
    transition: all 0.18s;

    .target-chip-text {
        font-size: 24rpx;
        font-weight: 600;
        color: $text-2;
    }

    &:active {
        transform: scale(0.97);
    }

    &.disabled {
        opacity: 0.45;
        pointer-events: none;
    }

    &.active {
        background: $brand-soft;
        border-color: $brand;

        .target-chip-text {
            color: $brand-deep;
        }
    }
}

/* ============================================================
 * 倒计时浮标
 * ============================================================ */
.countdown-badge {
    position: absolute;
    top: 24rpx;
    left: 28rpx;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8rpx 20rpx 10rpx;
    border-radius: 16rpx;
    background: rgba(255, 255, 255, 0.92);
    box-shadow:
        0 4rpx 16rpx rgba(15, 23, 42, 0.08),
        0 0 0 2rpx rgba(20, 184, 166, 0.18);
    z-index: 20;
}

.countdown-label {
    font-size: 18rpx;
    color: $text-3;
    line-height: 1.1;
}

.countdown-value {
    font-size: 32rpx;
    font-weight: 800;
    color: $brand-deep;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
    margin-top: 2rpx;
}

/* ============================================================
 * 控制面板底部操作（仅暂停时显示）
 * ============================================================ */
.action-bar {
    margin-top: 18rpx;
    padding: 14rpx 4rpx 2rpx;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12rpx;
    border-top: 2rpx dashed rgba(15, 23, 42, 0.06);
}

.paused-hint-text {
    flex: 1;
    font-size: 22rpx;
    color: $text-3;
    letter-spacing: 1rpx;
}

.end-link {
    flex-shrink: 0;
    padding: 8rpx 4rpx;
    font-size: 24rpx;
    color: $text-2;
    font-weight: 500;
    letter-spacing: 1rpx;

    &:active {
        color: $text-1;
    }
}

/* ============================================================
 * 动作要领条
 * ============================================================ */
.tips-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10rpx;
    justify-content: center;
}

.tip-chip {
    padding: 10rpx 20rpx;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 999rpx;
    border: 2rpx solid $card-border;
}

.tip-text {
    font-size: 22rpx;
    color: $text-2;
    line-height: 1.3;
}

/* ============================================================
 * 完成浮层
 * ============================================================ */
.summary-mask {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(6rpx);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    z-index: 900;
    padding: 0 24rpx calc(32rpx + env(safe-area-inset-bottom));
    animation: fade-in 0.2s ease;
}

/* ============================================================
 * 奖励弹窗
 * ============================================================ */
.reward-popup-mask {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fade-in 0.2s ease;
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.reward-popup {
    width: 560rpx;
    background: linear-gradient(135deg, #fff 0%, #f0fdfa 100%);
    border-radius: 32rpx;
    padding: 48rpx 32rpx;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20rpx;
    box-shadow: 0 20rpx 60rpx rgba(0, 0, 0, 0.3);
    animation: popup-bounce 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes popup-bounce {
    0% {
        transform: scale(0.8) translateY(40rpx);
        opacity: 0;
    }
    100% {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.reward-emoji {
    font-size: 120rpx;
    line-height: 1;
    animation: emoji-pop 0.6s ease;
}

@keyframes emoji-pop {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

.reward-title {
    font-size: 36rpx;
    font-weight: 700;
    color: $brand-deep;
    letter-spacing: 2rpx;
}

.reward-desc {
    font-size: 28rpx;
    color: $text-2;
    margin-bottom: 8rpx;
}

.reward-count {
    font-size: 24rpx;
    color: $text-3;
    margin-bottom: 12rpx;
}

.reward-btn {
    width: 100%;
    height: 88rpx;
    line-height: 88rpx;
    text-align: center;
    background: $brand;
    color: #fff;
    border-radius: 999rpx;
    font-size: 30rpx;
    font-weight: 600;
    box-shadow: 0 8rpx 20rpx rgba(20, 184, 166, 0.3);
    transition: all 0.2s;

    &:active {
        transform: scale(0.97);
        box-shadow: 0 4rpx 12rpx rgba(20, 184, 166, 0.2);
    }
}

/* ============================================================
 * 训练完成卡片
 * ============================================================ */
.completion-card {
    width: 100%;
    max-width: 700rpx;
    background: linear-gradient(135deg, #f0fdfa, #ecfeff);
    border-radius: 32rpx 32rpx 28rpx 28rpx;
    padding: 40rpx 28rpx 36rpx;
    display: flex;
    flex-direction: column;
    gap: 28rpx;
    align-items: center;
    box-shadow:
        0 -8rpx 48rpx rgba(15, 23, 42, 0.12),
        0 8rpx 32rpx rgba(20, 184, 166, 0.08);
    border: 2rpx solid rgba(20, 184, 166, 0.1);
    animation: sheet-up 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes sheet-up {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.completion-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8rpx;
}

.completion-emoji {
    font-size: 80rpx;
    line-height: 1;
    margin-bottom: 8rpx;
    animation: emoji-bounce 1.5s ease-in-out infinite;
}

@keyframes emoji-bounce {
    0%, 100% {
        transform: scale(1) rotate(0deg);
    }
    25% {
        transform: scale(1.1) rotate(-5deg);
    }
    75% {
        transform: scale(1.1) rotate(5deg);
    }
}

.completion-title {
    font-size: 36rpx;
    color: $text-1;
    font-weight: 800;
    letter-spacing: 2rpx;
}

.completion-subtitle {
    font-size: 24rpx;
    color: $text-3;
    margin-top: 4rpx;
}

.completion-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 24rpx;
}

/* 核心统计网格 */
.stats-grid {
    display: flex;
    gap: 16rpx;
    width: 100%;
}

.stat-item {
    flex: 1;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 20rpx;
    padding: 24rpx 12rpx 20rpx;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6rpx;
    box-shadow:
        0 4rpx 12rpx rgba(15, 23, 42, 0.04),
        inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8rpx);
}

.stat-icon {
    font-size: 40rpx;
    line-height: 1;
    margin-bottom: 4rpx;
}

.stat-label {
    font-size: 22rpx;
    color: $text-3;
    font-weight: 500;
}

.stat-value {
    font-size: 36rpx;
    font-weight: 800;
    color: $text-1;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0;
}

/* ============================================================
 * 食物对照卡片
 * ============================================================ */
.food-comparison-card {
    background: linear-gradient(135deg, #fff7ed 0%, #fffbeb 100%);
    border-radius: 20rpx;
    padding: 28rpx 24rpx;
    width: 100%;
    box-shadow:
        0 4rpx 16rpx rgba(251, 191, 36, 0.1),
        inset 0 1rpx 0 rgba(255, 255, 255, 0.8);
    border: 2rpx solid rgba(251, 191, 36, 0.15);
}

.food-comparison-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4rpx;
    margin-bottom: 24rpx;
}

.food-comparison-title {
    font-size: 26rpx;
    color: #92400e;
    font-weight: 700;
    letter-spacing: 1rpx;
}

.food-comparison-hint {
    font-size: 22rpx;
    color: #b45309;
    opacity: 0.8;
}

.food-list {
    display: flex;
    justify-content: space-around;
    align-items: center;
    gap: 12rpx;
}

.food-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8rpx;
    padding: 16rpx 8rpx;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 16rpx;
    transition: transform 0.3s ease;
}

.food-item:active {
    transform: scale(0.95);
}

.food-emoji {
    font-size: 56rpx;
    line-height: 1;
    filter: drop-shadow(0 2rpx 4rpx rgba(0, 0, 0, 0.1));
}

.food-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rpx;
}

.food-count {
    font-size: 32rpx;
    font-weight: 800;
    color: #92400e;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}

.food-name {
    font-size: 20rpx;
    color: #b45309;
    font-weight: 500;
    letter-spacing: 1rpx;
}

.action-row {
    display: flex;
    gap: 16rpx;
    justify-content: center;
    width: 100%;
}

.btn-primary,
.btn-secondary,
.btn-share {
    flex: 1;
    border-radius: 999rpx;
    font-size: 28rpx;
    height: 88rpx;
    line-height: 88rpx;
    border: none;
    padding: 0 16rpx;

    &::after {
        border: none;
    }
}

.btn-primary {
    background: $brand;
    color: #fff;
}

.btn-secondary {
    background: #fff;
    color: $brand-deep;
    border: 2rpx solid rgba(20, 184, 166, 0.35);
}

.btn-share {
    flex: 0 0 auto;
    width: 88rpx;
    padding: 0;
    background: #f0fdfa;
    color: $brand-deep;
    border: 2rpx solid rgba(20, 184, 166, 0.25);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6rpx;
    font-size: 24rpx;

    .share-icon {
        font-size: 30rpx;
        line-height: 1;
    }
}
</style>
