362 lines
8.2 KiB
Vue
362 lines
8.2 KiB
Vue
<template>
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<view class="df-Jc-c" style="border-radius: 50%; padding: 35upx 30upx 30upx 30upx" v-if="isShowLamp">
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<view class="luckDraw">
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<!--跑马灯-->
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<view
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class="decorate"
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:style="{
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width: `calc(${+size - 60}rpx)`,
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height: `calc(${+size - 60}rpx)`,
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}"
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>
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<view v-for="(item, index) in 8" :key="index" :style="{ background: flashChange(index) }"></view>
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</view>
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<!--转盘本身-->
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<view class="turntable" :style="{ clipPath: `circle(${height}rpx at 50% 50%)` }">
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<view class="pointer">
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<slot></slot>
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</view>
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<view
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class="giftArr"
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:style="{
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width: `calc(${+size - 60}rpx)`,
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height: `calc(${+size - 60}rpx)`,
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transform: `rotate(${result.deg}deg)`,
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transition: result.transition,
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'--evenBg': evenBackgroundColor,
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'--oddBg': oddBackgroundColor,
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}"
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>
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<view class="giftBox df-c" v-for="(item, index) in prizeData" :key="index" :style="[...giftBoxStyle(index)]">
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<view class="">
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{{ item[keyName] }}
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</view>
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<image :src="item[keyImage]" mode="aspectFill" />
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</view>
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</view>
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</view>
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</view>
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</view>
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</template>
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<script>
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export default {
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name: 'benben-lucky-draw-circle',
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props: {
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isShowLamp: {
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type: Boolean,
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default: true,
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},
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prizeData: {
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type: Array,
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default: () => [],
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},
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//跑马灯背景色
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backgroundColor: {
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type: String,
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default: '',
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},
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//亮起的跑马灯背景色
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activeBackgroundColor: {
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type: String,
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default: '',
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},
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//亮起的跑马灯边框色
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borderColor: {
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type: String,
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default: '',
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},
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//三角块背景色even
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evenBackgroundColor: {
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type: String,
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default: '',
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},
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//三角块背景色odd
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oddBackgroundColor: {
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type: String,
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default: '',
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},
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//转盘大小
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size: {
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type: [Number, String],
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default: 650,
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},
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//id
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keyId: {
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type: [String, Number],
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default: 'id',
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},
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keyName: {
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type: String,
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default: 'name',
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},
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keyImage: {
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type: String,
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default: 'image',
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},
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},
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data() {
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return {
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throttle: false,
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time: 1,
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flash: false,
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flashBegin: null,
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spin: 0,
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list: [],
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result: {
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deg: 0,
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giftIndex: 0,
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transition: '',
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},
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}
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},
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beforeDestroy() {
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clearInterval(this.flashBegin)
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this.flashBegin = null
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},
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mounted() {
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this.$nextTick(() => {
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this.flashBegin = setInterval(() => {
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this.flash = !this.flash
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}, 500)
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})
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},
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computed: {
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//高即半径
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height() {
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return (+this.size - 60) / 2
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},
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// 求宽高的所需度数
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degree() {
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return 360 / this.prizeData.length / 2
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},
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giftBoxStyle() {
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return (i) => {
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let width = Math.tan((this.degree * Math.PI) / 180) * this.height * 2
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let pddinglr =
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(width -
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Math.sqrt(Math.pow(this.height * 0.85, 2) * 2 - Math.pow(this.height * 0.85, 2) * 2 * Math.cos((this.degree * 2 * Math.PI) / 180))) /
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2
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let styleData = {
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width: `${width}rpx`,
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height: `${this.height}rpx`,
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left: `calc(50% - (${width}rpx / 2))`,
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top: `0rpx`,
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padding: `${this.height * 0.15}rpx ${pddinglr}rpx 0`,
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transform: ` rotateZ(${this.degree * 2 * i}deg)`,
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}
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if (this.prizeData.length % 2 && i == this.prizeData.length - 1) styleData.background = '#FCFAED'
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return styleData
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}
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},
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},
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methods: {
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flashChange(i) {
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if ((i + 1) % 2) {
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if (this.flash) {
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return '-webkit-radial-gradient(circle closest-side, ' + this.backgroundColor + ' 70%, rgba(0, 0, 0, 0) 30%)'
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} else {
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return '-webkit-radial-gradient(circle closest-side, ' + this.activeBackgroundColor + ' 50%, ' + this.borderColor + ' 50%)'
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}
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} else {
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if (!this.flash) {
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return '-webkit-radial-gradient(circle closest-side, ' + this.backgroundColor + ' 70%, rgba(0, 0, 0, 0) 30%)'
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} else {
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return '-webkit-radial-gradient(circle closest-side, ' + this.activeBackgroundColor + ' 50%, ' + this.borderColor + ' 50%)'
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}
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}
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},
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startLuckyDraw(id) {
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let num = this.prizeData.findIndex((item) => item[this.keyId] == id)
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if (num === -1) num = 0
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if (this.throttle) return console.log('转盘抽奖中...')
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this.throttle = true
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let index = 0
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if (num) index = num
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if (num == 0) index = num
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this.spin = this.spin == index + 5 ? 5 - (index || 2) : index + 5
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this.result.deg = this.spin * 360 - index * this.degree * 2
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this.result.giftIndex = index
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this.result.transition = `all ${this.time}s`
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setTimeout(() => {
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uni.showModal({
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title: '恭喜中奖',
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content: this.prizeData[index][this.keyName],
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success: (res) => {
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this.throttle = false
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// this.$emit('result', {
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// type: res.confirm,
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// gift: this.list[index]
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// })
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},
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})
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}, this.time * 1000)
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},
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},
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}
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</script>
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<style lang="scss" scoped>
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view {
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box-sizing: border-box;
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}
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.df-c {
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display: flex;
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flex-wrap: wrap;
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flex-direction: column;
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}
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.df-Jc-c {
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display: flex;
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flex-wrap: wrap;
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justify-content: center;
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}
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.luckDraw {
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position: relative;
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z-index: 1;
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.decorate {
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pointer-events: none;
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z-index: 2;
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position: absolute;
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left: 0;
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top: 0px;
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border-radius: 50%;
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> view {
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position: absolute;
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height: 20rpx;
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width: 20rpx;
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border-radius: 10rpx;
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}
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> view:nth-child(1) {
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left: calc(50% - 10rpx);
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top: -27rpx;
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}
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> view:nth-child(2) {
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left: 13%;
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top: 10%;
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}
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> view:nth-child(3) {
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left: -26rpx;
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top: calc(50% - 10rpx);
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}
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> view:nth-child(4) {
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left: 13%;
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bottom: 10.5%;
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}
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> view:nth-child(5) {
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left: calc(50% - 10rpx);
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bottom: -26rpx;
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}
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> view:nth-child(6) {
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right: 13%;
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bottom: 10.5%;
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}
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> view:nth-child(7) {
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right: -26rpx;
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top: calc(50% - 10rpx);
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}
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> view:nth-child(8) {
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right: 13%;
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top: 10%;
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}
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}
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.pointer {
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z-index: 3;
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top: calc(50% - 60rpx);
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left: calc(50% - 60rpx);
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position: absolute;
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width: 120rpx;
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height: 120rpx;
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font-size: 22rpx;
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color: #ffffff;
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line-height: 30rpx;
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text-align: center;
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> view:nth-child(3) {
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position: absolute;
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z-index: -1;
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bottom: calc(40rpx + 35rpx);
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left: 20rpx;
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height: 80rpx;
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width: 80rpx;
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background: linear-gradient(to right, #fabd01 0%, #fabd01 50%, #e8af00 50%, #e8af00 100%);
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clip-path: polygon(50% 0, 0 100%, 100% 100%);
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}
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> view:nth-child(2) {
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position: absolute;
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z-index: 2;
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left: 0;
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bottom: 0;
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width: 120rpx;
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background: #fabd01;
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height: 120rpx;
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border-radius: 50%;
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z-index: 1;
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}
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> view:nth-child(1) {
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left: 10rpx;
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bottom: 10rpx;
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position: absolute;
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z-index: 2;
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width: 100rpx;
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background: #f56503;
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border: 4rpx solid #fed860;
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height: 100rpx;
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border-radius: 50%;
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}
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}
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.turntable {
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position: relative;
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display: inline-block;
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border-radius: 50%;
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overflow: hidden;
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.giftArr {
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margin: auto;
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position: relative;
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.giftBox {
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box-sizing: border-box;
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transform-origin: bottom center;
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// background: #FC8608;
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position: absolute;
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font-weight: bold;
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clip-path: polygon(0% 0%, 100% 0%, 50% 100%);
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font-size: 24rpx;
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// color: #EB7336;
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line-height: 50rpx;
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text-align: center;
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image {
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margin: 0 auto auto;
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height: 50rpx;
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width: 50rpx;
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}
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}
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> view:nth-child(even) {
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background: var(--evenBg);
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}
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> view:nth-child(odd) {
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background: var(--oddBg);
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}
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}
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}
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}
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</style>
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