284 lines
8.6 KiB
Vue
284 lines
8.6 KiB
Vue
<template>
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<view class="u-char-box" :class="customClass" :style="$u.toStyle(customStyle)">
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<view class="u-char-flex">
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<!-- prettier-ignore -->
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<input
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:disabled="props.disabledKeyboard"
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:value="valueModel"
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:type="(type as any)"
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:focus="props.focus"
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:maxlength="Number(props.maxlength)"
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class="u-input"
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@input="getVal"
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/>
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<view v-for="(item, index) in loopCharArr" :key="index">
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<view
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:class="[
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props.breathe && charArrLength === index ? 'u-breathe' : '',
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'u-char-item',
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charArrLength === index && props.mode == 'box' ? 'u-box-active' : '',
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props.mode === 'box' ? 'u-box' : ''
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]"
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:style="{
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fontWeight: props.bold ? 'bold' : 'normal',
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fontSize: props.fontSize + 'rpx',
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width: props.width + 'rpx',
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height: props.width + 'rpx',
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color: props.inactiveColor,
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borderColor:
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charArrLength === index && props.mode == 'box' ? props.activeColor : props.inactiveColor
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}"
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>
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<view
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class="u-placeholder-line"
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:style="{
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display: charArrLength === index ? 'block' : 'none',
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height: Number(props.width) * 0.5 + 'rpx'
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}"
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v-if="props.mode !== 'middleLine'"
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></view>
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<view
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v-if="props.mode === 'middleLine' && charArrLength <= index"
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:class="[
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props.breathe && charArrLength === index ? 'u-breathe' : '',
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charArrLength === index ? 'u-middle-line-active' : ''
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]"
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class="u-middle-line"
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:style="{
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height: props.bold ? '4px' : '2px',
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background: charArrLength === index ? props.activeColor : props.inactiveColor
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}"
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></view>
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<view
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v-if="props.mode === 'bottomLine'"
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:class="[
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props.breathe && charArrLength === index ? 'u-breathe' : '',
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charArrLength === index ? 'u-bottom-line-active' : ''
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]"
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class="u-bottom-line"
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:style="{
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height: props.bold ? '4px' : '2px',
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background: charArrLength === index ? props.activeColor : props.inactiveColor
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}"
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></view>
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<block v-if="!props.dotFill"> {{ charArr[index] ? charArr[index] : '' }}</block>
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<block v-else>
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<text class="u-dot">{{ charArr[index] ? '●' : '' }}</text>
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</block>
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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 lang="ts">
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export default {
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name: 'u-message-input',
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options: {
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addGlobalClass: true,
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// #ifndef MP-TOUTIAO
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virtualHost: true,
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// #endif
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styleIsolation: 'shared'
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}
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};
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</script>
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<script setup lang="ts">
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import { ref, computed, watch } from 'vue';
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import { MessageInputProps } from './types';
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import { $u } from '../../';
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/**
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* messageInput 验证码输入框
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* @description 该组件一般用于验证用户短信验证码的场景，也可以结合uView的键盘组件使用
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* @tutorial https://uviewpro.cn/zh/components/messageInput.html
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* @property {String|Number} maxlength 输入字符个数（默认4）
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* @property {Boolean} dot-fill 是否用圆点填充（默认false）
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* @property {String} mode 模式选择，见上方"基本使用"说明（默认box）
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* @property {String|Number} value 预置值
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* @property {Boolean} breathe 是否开启呼吸效果，见上方说明（默认true）
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* @property {Boolean} focus 是否自动获取焦点（默认false）
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* @property {Boolean} bold 字体和输入横线是否加粗（默认true）
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* @property {String|Number} font-size 字体大小，单位rpx（默认60）
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* @property {String} active-color 当前激活输入框的样式（默认主题色primary）
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* @property {String} inactive-color 非激活输入框的样式，文字颜色同此值（默认var(--u-content-color)）
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* @property {String|Number} width 输入框宽度，单位rpx，高等于宽（默认80）
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* @property {Boolean} disabled-keyboard 禁止点击输入框唤起系统键盘（默认false）
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* @event {Function} change 输入内容发生改变时触发，具体见官网说明
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* @event {Function} finish 输入字符个数达maxlength值时触发，见官网说明
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* @example <u-message-input mode="bottomLine"></u-message-input>
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*/
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const props = defineProps(MessageInputProps);
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const emit = defineEmits(['change', 'finish']);
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// 输入框实际值
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const valueModel = ref('');
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// 监听 value 变化，自动同步 valueModel，超出部分截掉
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watch(
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() => props.value,
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val => {
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// 转为字符串
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const strVal = String(val);
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// 超出部分截掉
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valueModel.value = strVal.substring(0, Number(props.maxlength));
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},
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{ immediate: true }
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);
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// 用于显示字符
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const charArr = computed(() => valueModel.value.split(''));
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const charArrLength = computed(() => charArr.value.length);
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// 根据长度，循环输入框的个数，因为头条小程序数值不能用于v-for
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const loopCharArr = computed(() => new Array(Number(props.maxlength)));
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/**
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* 输入事件处理
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* @param e input事件对象
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*/
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function getVal(e: any) {
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const { value } = e.detail;
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valueModel.value = value;
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// 判断长度是否超出了maxlength值，理论上不会发生，因为input组件设置了maxlength属性值
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if (String(value).length > Number(props.maxlength)) return;
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// 未达到maxlength之前，发送change事件，达到后发送finish事件
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emit('change', value);
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if (String(value).length === Number(props.maxlength)) {
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emit('finish', value);
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}
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}
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</script>
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<style scoped lang="scss">
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@import '../../libs/css/style.components.scss';
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@keyframes breathe {
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0% {
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opacity: 0.3;
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}
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50% {
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opacity: 1;
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}
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100% {
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opacity: 0.3;
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}
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}
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.u-char-box {
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text-align: center;
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}
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.u-char-flex {
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@include vue-flex;
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justify-content: center;
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flex-wrap: wrap;
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position: relative;
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}
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.u-input {
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position: absolute;
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top: 0;
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left: -100%;
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width: 200%;
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height: 100%;
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text-align: left;
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z-index: 9;
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opacity: 0;
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background: none;
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}
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.u-char-item {
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position: relative;
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width: 90rpx;
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height: 90rpx;
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margin: 10rpx 10rpx;
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font-size: 60rpx;
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font-weight: bold;
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color: $u-main-color;
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line-height: 90rpx;
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@include vue-flex;
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justify-content: center;
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align-items: center;
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}
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.u-middle-line {
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border: none;
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}
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.u-box {
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box-sizing: border-box;
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border: 2rpx solid var(--u-light-color);
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border-radius: 6rpx;
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}
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.u-box-active {
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overflow: hidden;
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animation-timing-function: ease-in-out;
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animation-duration: 1500ms;
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animation-iteration-count: infinite;
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animation-direction: alternate;
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border: 2rpx solid $u-type-primary;
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}
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.u-middle-line-active {
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background: $u-type-primary;
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}
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.u-breathe {
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animation: breathe 2s infinite ease;
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}
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.u-placeholder-line {
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/* #ifndef APP-NVUE */
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display: none;
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/* #endif */
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position: absolute;
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left: 50%;
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top: 50%;
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transform: translate(-50%, -50%);
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width: 2rpx;
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height: 40rpx;
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background: var(--u-main-color);
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animation: twinkling 1.5s infinite ease;
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}
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.u-animation-breathe {
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animation-name: breathe;
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}
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.u-dot {
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font-size: 34rpx;
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line-height: 34rpx;
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}
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.u-middle-line {
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height: 4px;
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background: var(--u-bg-black);
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width: 80%;
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position: absolute;
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border-radius: 2px;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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}
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.u-bottom-line-active {
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background: $u-type-primary;
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}
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.u-bottom-line {
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height: 4px;
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background: var(--u-bg-black);
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width: 80%;
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position: absolute;
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border-radius: 2px;
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bottom: 0;
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left: 50%;
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transform: translate(-50%);
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}
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</style>
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