小程序原生实现音频播放器，下一首上一首切换，拖动进度条等功能

js:

Page({
  data: {
    visible: false,
    videoSrc: '***/video.mp4',
    videoSize: 44.29,
    audiovisible: false, //音频弹窗
    currentAudio: null, //点击的音频
    audioContext: null,
    isPlaying: false,
    isLoading: false,
    audioError: false,
    duration: 0, //视频时长
    currentTimeText: '00:00',
    durationText: '00:00',
    //音频
    audioList: [],
    musicCurrentIndex: 0, //当前播放第几首
    isAudioReady: false, // 新增：音频是否准备
    code: null,
    detailInfo: null,
    unitInfo: null,
    bookInfo: null,
    seeking: false, // 是否正在拖动/跳转中
    currentTime: 0,
    audioDuration: 0, //音频总时长
  },

  onLoad(options) {
    console.log(options)
    if (options.code) {
      this.setData({
        code: options.code,
      })
      this.getAudio(options.code)
    }
    if (options.scene) {
      console.log(options.scene, 'options.scene888');
      this.decryptSpm(options.scene);
    }
  },
  // 解析Spm  
  decryptSpm: async function (spm) {
    let shareParamsArray = spm.split('.');
    //type=1 课本  2课文, code='NDAxMj',
    this.setData({
      type: parseInt(shareParamsArray[0]), // 转换为数字 类型
      code: shareParamsArray[1],
    })
    console.log('解析来的参数', this.data.type, this.data.code)
    if (this.data.code) {
      this.getAudio(this.data.code)
    }
  },
  //根据课文code拿音频
  getAudio: async function (code) {
    const res = await instance.get('***?code=' + code)
    if (res) {
      // console.log("获得课文", res);
      this.setData({
        detailInfo: res,
        audioList: res.audio
      })
      this.getUnit(res.unitId)
    }
  },
 
  // 打开音频弹窗
  hangdleaudiovisible(e) {
    // console.log(e)
    const index = e.currentTarget.dataset.index;
    const audioItem = this.data.audioList[index];
    this.setData({
      audiovisible: true,
      currentAudio: audioItem,
      musicCurrentIndex: index
    });
    this.initAudio();
  },
  // 初始化
  initAudio() {
    if (this.data.audioContext) {
      this.data.audioContext.destroy();
      this.setData({
        audioContext: null
      });
    }
    this.setData({
      isAudioReady: false,
      audioError: false,
      isPlaying: false,
      currentTime: 0,
      audioDuration: 0,
      currentTimeText: '00:00',
      durationText: '00:00'
    });

    // 创建新的音频上下文
    const innerAudioContext = wx.createInnerAudioContext();
    const currentIndex = this.data.musicCurrentIndex;
    innerAudioContext.src = this.data.currentAudio.url;
    innerAudioContext.autoplay = false;
    innerAudioContext.loop = false;
    innerAudioContext.obeyMuteSwitch = false;

    // 音频可以播放事件
    innerAudioContext.onCanplay(() => {
      console.log('onCanplay 触发，当前 duration =', innerAudioContext.duration);
      if (innerAudioContext.duration && innerAudioContext.duration > 0) {
        console.log('onCanplay 有效，音频已可播放，duration 正常');
        this.handleAudioReady(innerAudioContext.duration);
      } else {
        console.warn('onCanplay 触发了，但 duration 为 0，暂不设为 ready');
        // 不调用 this.handleAudioReady()，避免错误设置 isAudioReady=true
      }
    });
    // 音频开始播放事件
    innerAudioContext.onPlay(() => {
      this.setData({
        isPlaying: true,
      });
    });
    // 音频暂停事件
    innerAudioContext.onPause(() => {
      // console.log('暂停播放');s
      this.setData({
        isPlaying: false // 设置播放状态为false
      });
    });
    // 播放过程中更新当前时间和进度条
    innerAudioContext.onTimeUpdate(() => {
      const duration = innerAudioContext.duration;
      const currentTime = innerAudioContext.currentTime;
      // console.log("更新当前时间和进度条", duration, currentTime)
      if (!this.data.seeking && duration && duration > 0) {
        this.setData({
          currentTime: currentTime,
          audioDuration: duration,
          currentTimeText: this.formatTime(currentTime),
          durationText: this.formatTime(duration),
          isAudioReady: true // ✅ 重要：有 duration 说明已准备好了
        });
      }
    });

    // 音频错误
    innerAudioContext.onError((res) => {
      console.error('音频播放错误:', res);
      this.setData({
        audioError: true,
        isPlaying: false,
        isAudioReady: true // ❗即使出错，也设为 true，隐藏加载中
      });
    });
    // 音频结束
    innerAudioContext.onEnded(() => {
      this.setData({
        isPlaying: false,
        currentTime: this.data.audioDuration,
        currentTimeText: this.formatTime(this.data.audioDuration)
      });
    });
    // ✅ 监听加载中状态 监听音频加载中事件。当音频因为数据不足，需要停下来加载时会触发
    innerAudioContext.onWaiting(() => {
      this.setData({
        isAudioReady: true
      });
    });
    // ✅ 【关键】定时器：轮询 duration，兜底用
    let durationCheckTimer = setInterval(() => {
      const duration = innerAudioContext.duration;
      if (duration && duration > 0) {
        clearInterval(durationCheckTimer);
        // console.log('定时器检测到 duration，设置为 ready');
        this.handleAudioReady(duration);
      }
    }, 100);

    // ✅ 【关键】超时处理：2 秒后没加载出来再次初始化
    setTimeout(() => {
      clearInterval(durationCheckTimer);
      const duration = innerAudioContext.duration;
      console.log('音频加载超时，当前 duration =', duration);
      if (!this.data.isAudioReady) {
        this.initAudio()
      }
    }, 2000);
    this.setData({
      audioContext: innerAudioContext
    });
  },
  // 处理音频准备完成
  handleAudioReady(duration) {
    this.setData({
      audioDuration: duration,
      durationText: this.formatTime(duration),
      isAudioReady: true,
    });
  },
  // 切换播放/暂停（添加检查）
  toggleAudioPlayback() {
    if (!this.data.audioContext) {
      console.error('音频上下文不存在');
      return;
    }
    if (!this.data.isAudioReady) {
      wx.showToast({
        title: '音频尚未加载完成',
        icon: 'none'
      });
      return;
    }
    if (this.data.audioError) {
      this.retryAudio();
      return;
    }
    if (this.data.isPlaying) {
      this.data.audioContext.pause();
    } else {
      this.data.audioContext.play();
    }
  },
  onSliderChanging(e) {
    this.setData({
      currentTime: e.detail.value
    });
  },
  onSliderChange(e) {
    const timeInSeconds = e.detail.value;
    this.setData({
      currentTime: timeInSeconds, // 先更新 UI，让用户看到滑块跳转目标
      seeking: true // 标记：正在跳转中，接下来忽略 onTimeUpdate 的自动更新
    });
    this.data.audioContext.pause();//暂停播放
    // 执行跳转
    this.seekAudioTo(timeInSeconds);
    // 延迟一小段时间后，恢复播放（如果之前是在播放）
    setTimeout(() => {
      this.setData({
        seeking: false // 允许 onTimeUpdate 正常更新
      });
      this.data.audioContext.play(); // 恢复播放
    }, 200); // 200ms 后，确保跳转完成
  },
  seekAudioTo(seconds) {
    if (this.data.audioContext) {
      this.data.audioContext.seek(seconds);
    }
  },
  // 重试加载音频
  retryAudio() {
    this.initAudio();
  },
  // 格式化时间显示
  formatTime(seconds) {
    seconds = Math.floor(seconds || 0);
    const minutes = Math.floor(seconds / 60);
    const remainingSeconds = seconds % 60;
    return `${minutes.toString().padStart(2, '0')}:${remainingSeconds.toString().padStart(2, '0')}`;
  },
  closeAudioPopup() {
    if (this.data.audioContext) {
      this.data.audioContext.stop();
      this.data.audioContext.destroy();
      this.setData({
        audioContext: null
      });
    }

    this.setData({
      audiovisible: false,
      isPlaying: false,
    });
  },

  // 音频弹窗显示变化
  onAudioVisibleChange(e) {
    if (!e.detail.visible && this.data.audioContext) {
      this.data.audioContext.stop();
      this.data.audioContext.destroy();
      this.setData({
        audioContext: null,
        isPlaying: false,
        audiovisible: false,
      });
    }
  },

  // 弹出层显示变化回调
  onVisibleChange(e) {
    this.setData({
      visible: e.detail.visible,
      audiovisible: e.detail.visible,
    });
    if (!e.detail.visible) {
      if (this.videoContext) {
        this.videoContext.pause();
      }
    }
  },
  // 统一的切换音频方法（上一首/下一首）
  switchAudio(e) {
    // 获取方向参数：prev（上一首）或 next（下一首）
    const direction = e.currentTarget.dataset.direction;
    // 计算目标索引
    let targetIndex;
    if (direction === 'next') {
      // 下一首：当前索引 + 1，到最后一首则循环到第一首
      targetIndex = this.data.musicCurrentIndex + 1;
      if (targetIndex >= this.data.audioList.length) {
        targetIndex = 0;
      }
    } else if (direction === 'prev') {
      // 上一首：当前索引 - 1，到第一首则循环到最后一首
      targetIndex = this.data.musicCurrentIndex - 1;
      if (targetIndex < 0) {
        targetIndex = this.data.audioList.length - 1;
      }
    } else {
      // 未知方向，直接返回
      return;
    }
    // 获取目标音频项
    const targetAudioItem = this.data.audioList[targetIndex];
    // 更新当前播放索引和音频项
    this.setData({
      musicCurrentIndex: targetIndex,
      currentAudio: targetAudioItem
    });
    // 关闭当前音频弹窗
    this.closeAudioPopup();
    // 延迟一点时间后打开新的音频（确保上一个音频完全关闭）
    setTimeout(() => {
      this.hangdleaudiovisible({
        currentTarget: {
          dataset: {
            index: targetIndex
          }
        }
      });
    }, 300);
  },


})

wxml:

<view class="fffbox">
  <navigation-bar class="navigation" title="" back="{{true}}" color="black" background="#fff">
    <t-icon slot="left" name="chevron-left" size="48rpx" bind:tap="onBack" class="mr-5" />
    <text slot="center" name="center" class="nav-title">{{unitInfo.name}}</text>
  </navigation-bar>
  <scroll-view class="scrollarea" scroll-y type="list">
    <view class="bluebox">
      <view class="border-blue pad8">
        <view>{{bookInfo.name}}</view>
        <view class="fle between ali" style="padding-top: 16rpx;">
          <text>英语·{{bookInfo.grade}}·{{bookInfo.edition}}</text>
        </view>
      </view>
      <view class="block">
        <t-steps layout="vertical" theme="dot" current="1" bind:change="onThirdChange">
          <t-step-item content="{{unitInfo.name}}" />
          <t-step-item content="{{detailInfo.name}}" />
        </t-steps>
      </view>
    </view>
    <view class="fff">
      <view class="pads16">
  
        <block wx:if="{{audioList.length>0}}">
          <view wx:for="{{audioList}}" wx:key="index" class="fle ali ma55 " bind:tap="hangdleaudiovisible" data-index="{{index}}">
            <image src="https://tuzheng-manager-1328247176.cos.ap-shanghai.myqcloud.com/study-tour/index/sound-wave.png" mode="" class="icons" />
            <text class="fon15 wei">{{item.name}}</text>
          </view>
        </block>
        <block wx:else>
          <view style="width:100%;flex-direction: column;" class="fle ali ma55">
            <view style="color: #ccc;">暂无数据</view>
          </view>
        </block>
       
      </view>
    </view>
  </scroll-view>
</view>

<!-- 音频弹出层 -->
<t-popup visible="{{audiovisible}}" usingCustomNavbar bind:visible-change="onAudioVisibleChange" placement="bottom">
  <view wx:if="{{!isAudioReady}}" class="loading-overlay">
    <view class="loading-spinner"></view>
    <text class="loading-text">音频加载中，请稍候...</text>
  </view>
  <view class="audio-popup">
    <view class="audio-header">
      <image class="close-btn" src="https://tuzheng-manager-1328247176.cos.ap-shanghai.myqcloud.com/study-tour/index/close-blue.png" mode="aspectFit" bindtap="closeAudioPopup" />
    </view>
    <view class="audio-content">
      <view class="audio-visualization">
        <image class="audio-play {{isPlaying ? 'rotate-animation' : ''}}" src="https://tuzheng-manager-1328247176.cos.ap-shanghai.myqcloud.com/study-tour/index/audio-bg.png" />
        <image class="stick" src="https://tuzheng-manager-1328247176.cos.ap-shanghai.myqcloud.com/study-tour/index/stick.png" mode="" />
      </view>
      <view class="audio-name">{{currentAudio.name}}</view>
      <view class="progress-container">
        <!-- 当前播放时间 -->
        <text class="time-text">{{currentTimeText}}</text>
        <!-- 滑块进度条 -->
        <slider class="audio-slider" min="0" max="{{audioDuration}}" value="{{currentTime}}" step="0.1" activeColor="#006AFD" backgroundColor="#E5E5E5" block-color="#006AFD" block-size="16" bindchanging="onSliderChanging" bindchange="onSliderChange" disabled="{{isAudioReady ? false : true}}" />
        <!-- 总时长 -->
        <text class="time-text">{{durationText}}</text>
      </view>
      <!-- 播放控件 -->
      <view class="audio-controls">
        <image class="control-smallbtn {{isAudioReady ? '' : 'disabled'}}" src="https://tuzheng-patriarch-mini-1328247176.cos.ap-shanghai.myqcloud.com/textbook/audio-left.png" mode="" bind:tap="{{isAudioReady ? 'switchAudio' : ''}}" data-direction="prev" />
        <!-- 自定义播放按钮 -->
        <view class="custom-play-btn {{isAudioReady ? '' : 'disabled'}}" bindtap="{{isAudioReady ? 'toggleAudioPlayback' : ''}}">
          <!-- 播放状态：显示波浪动画 -->
          <view class="play-icon-container" wx:if="{{isPlaying}}">
            <view class="play-icon-bars">
              <view class="wave-bar" style="animation-delay: 0s"></view>
              <view class="wave-bar" style="animation-delay: 0.2s"></view>
              <view class="wave-bar" style="animation-delay: 0.4s"></view>
              <view class="wave-bar" style="animation-delay: 0.6s"></view>
              <view class="wave-bar" style="animation-delay: 0.8s"></view>
            </view>
          </view>
          <!-- 暂停状态：显示播放图标 -->
          <image wx:else class="control-btn" src="https://tuzheng-manager-1328247176.cos.ap-shanghai.myqcloud.com/study-tour/index/audio-cloce.png" mode="" />
        </view>
        <image class="control-smallbtn {{isAudioReady ? '' : 'disabled'}}" src="https://tuzheng-manager-1328247176.cos.ap-shanghai.myqcloud.com/study-tour/index/right-blue.png" mode="" bind:tap="{{isAudioReady ? 'switchAudio' : ''}}" data-direction="next" />
      </view>
    </view>
  </view>
  <view wx:if="{{audioError}}" class="loading-overlay">
    <text class="error-text">音频加载失败，请重试</text>
    <button class="retry-btn" bindtap="retryAudio">重试</button>
  </view>
</t-popup>

wxss:

.fffbox {
  width: 100vw;
  height: 100vh;
}

.scrollarea {
  height: calc(100vh - 170rpx);
  position: relative;
}

.bluebox {
  background: rgba(0, 106, 253, 0.1);
  padding: 16rpx 32rpx;
}

.border-blue {
  background: #F5F9FF;
  border-radius: 16rpx 16rpx 16rpx 16rpx;
  border: 2rpx solid #D7E8FE;
  font-weight: 400;
  font-size: 24rpx;
  color: #2F64AD;
}

.block {
  margin: 20rpx 0;
}

.t-steps-item__description {
  font-weight: 600 !important;
  font-size: 28rpx !important;
  color: #000 !important;
}

.fff {
  width: 100%;
  background: #FFFFFF;
  border-radius: 32rpx 32rpx 0rpx 0rpx;
  margin-top: -16rpx;
}

.icons {
  width: 32rpx;
  height: 32rpx;
}

.pads16 {
  padding: 32rpx 32rpx;
}

.wei {
  font-weight: bold;
  color: #1A1A1A;
  padding-left: 20rpx;
  width: 90%;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
}

.ma55 {
  margin-bottom: 55rpx;
}

.block {
  color: var(--td-text-color-secondary);
  display: flex;
  flex-direction: column;
  /* background: #F5F9FF; */
  justify-content: center;
}

.tops {
  width: 95%;
  display: flex;
  justify-content: flex-end;
}

video {
  margin: 20rpx auto;
  border-radius: 20rpx;
  width: 90%;
}

.tops image {
  width: 48rpx;
  height: 48rpx;
}

.times {
  width: 24rpx;
  height: 24rpx;
  margin-right: 10rpx;
}

.bluetext {
  font-weight: 400;
  font-size: 24rpx;
  color: #2F64AD;
}

.title {
  font-weight: bold;
  font-size: 34rpx;
  color: #1A1A1A;
  padding: 10rpx 32rpx;
}

.audiotitle {
  width: 80%;
  margin: 0 auto;
  font-weight: bold;
  font-size: 32rpx;
  color: #1A1A1A;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 64rpx;
}

.audio-play {
  width: 460rpx;
  height: 432rpx;
  margin: 40rpx auto;

}


.stick {
  width: 128rpx;
  height: 154rpx;
  position: absolute;
  top: 30rpx;
  right: 120rpx;
  z-index: 10;
  /* 确保stick在音频背景图上方 */
}




.audio-popup {
  background: #fff;
  border-top-left-radius: 24rpx;
  border-top-right-radius: 24rpx;
  padding-bottom: env(safe-area-inset-bottom);
  min-height: 60vh;
  position: relative;
}

.audio-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 32rpx;
}

.audio-title {
  font-size: 32rpx;
  font-weight: bold;
}

.close-btn {
  width: 48rpx;
  height: 48rpx;
}

.audio-content {
  padding: 20rpx 32rpx;
}

.audio-visualization {
  display: flex;
  justify-content: center;
  margin-bottom: 40rpx;
  position: relative;
}

.audio-icon {
  width: 120rpx;
  height: 120rpx;
}

.audio-play {
  width: 428rpx;
  height: 428rpx;
  margin: 40rpx auto;
  transition: transform 0.3s ease-out;
}

/* 旋转动画关键帧 */
.rotate-animation {
  animation: rotate 10s linear infinite;
}

/* 暂停状态 */
.rotate-paused {
  animation-play-state: paused;
}

/* 旋转动画定义 */
@keyframes rotate {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.audio-name {
  text-align: center;
  font-weight: bold;
  font-size: 32rpx;
  color: #1A1A1A;
  padding-bottom: 20rpx;
}

.progress-container {
  display: flex;
  align-items: center;
  margin-bottom: 50rpx;
  width: 100%;
  padding: 10px;
}

.time-text {
  font-size: 24rpx;
  color: #999;
  width: 100rpx;
  text-align: center;
}

.audio-slider {
  flex: 1;
  margin: 0 10px;
}

.progress-bar {
  flex: 1;
  height: 8rpx;
  background: #eee;
  border-radius: 4rpx;
  position: relative;
  margin: 0 20rpx;
}

.progress-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 4rpx;
  background: #e0e0e0;
}

.progress-filled {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  border-radius: 4rpx;
  background: #1E90FF;
  z-index: 2;
}

.progress-thumb {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 28rpx;
  height: 28rpx;
  border-radius: 50%;
  background: #1E90FF;
  z-index: 3;
}

.audio-controls {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.control-btn {
  width: 128rpx;
  height: 128rpx;
}

.control-smallbtn {
  width: 56rpx;
  height: 56rpx;
}

.loading-container,
.error-container {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  text-align: center;
}

.loading-text,
.error-text {
  font-size: 28rpx;
  color: #999;
  display: block;
  margin-bottom: 20rpx;
}

.retry-btn {
  background: #1E90FF;
  color: white;
  border: none;
  border-radius: 8rpx;
  padding: 16rpx 32rpx;
  font-size: 26rpx;
}



/* 音频波浪动画 */
.audio-waves {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 432rpx;
  width: 460rpx;
}

.wave-bar {
  width: 10rpx;
  height: 40rpx;
  background-color: #fff;
  margin: 0 5rpx;
  border-radius: 5rpx;
  animation: wave 1s infinite ease-in-out;
}

@keyframes wave {

  0%,
  100% {
    transform: scaleY(0.5);
  }

  50% {
    transform: scaleY(1.5);
  }
}



/* 自定义播放按钮 */
.custom-play-btn {
  width: 128rpx;
  height: 128rpx;
  border-radius: 50%;
  background: linear-gradient(135deg, #47DFF4 0%, #006AFD 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4rpx 16rpx rgba(30, 144, 255, 0.4);
}

.play-icon-container {
  width: 60rpx;
  height: 60rpx;
  display: flex;
  justify-content: center;
  align-items: center;
}

.play-icon-bars {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 20rpx;
}

.play-bar {
  width: 8rpx;
  background-color: white;
  border-radius: 2rpx;
}

.play-bar:nth-child(1) {
  height: 20rpx;
  animation: barHeight 1s infinite ease-in-out;
}

.play-bar:nth-child(2) {
  height: 40rpx;
  animation: barHeight 1s infinite ease-in-out 0.2s;
}

.play-bar:nth-child(3) {
  height: 60rpx;
  animation: barHeight 1s infinite ease-in-out 0.4s;
}

@keyframes barHeight {

  0%,
  100% {
    height: 20rpx;
  }

  50% {
    height: 60rpx;
  }
}

.play-icon-triangle {
  width: 0;
  height: 0;
  border-top: 15rpx solid transparent;
  border-left: 30rpx solid white;
  border-bottom: 15rpx solid transparent;
  margin-left: 5rpx;
}

/* 进度条样式修复 */
.progress-bar {
  flex: 1;
  height: 8rpx;
  background: #eee;
  border-radius: 4rpx;
  position: relative;
  margin: 0 20rpx;
}

.progress-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 4rpx;
  background: #e0e0e0;
}

.progress-filled {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  border-radius: 4rpx;
  background: #1E90FF;
  z-index: 2;
  transition: width 0.2s ease;
}

.progress-thumb {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 28rpx;
  height: 28rpx;
  border-radius: 50%;
  background: #1E90FF;
  z-index: 3;
  box-shadow: 0 2rpx 8rpx rgba(0, 0, 0, 0.2);
}


.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 100;
}

.loading-spinner {
  width: 60rpx;
  height: 60rpx;
  border: 6rpx solid #f3f3f3;
  border-top: 6rpx solid #006AFD;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 20rpx;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* 禁用状态样式 */
.disabled {
  opacity: 0.5;
  pointer-events: none;
}

.progress-bar.disabled .progress-thumb {
  display: none;
}

.control-smallbtn.disabled,
.custom-play-btn.disabled {
  filter: grayscale(100%);
}
.weui-navigation-bar__inner .weui-navigation-bar__center{
  width: 50% !important;

}
.navigation .nav-title{
  white-space: nowrap;      /* 禁止换行 */
  overflow: hidden;         /* 隐藏超出部分 */
  text-overflow: ellipsis;  /* 超出显示省略号 */
  display: inline-block;    /* 或 block，根据布局 */
  max-width: 500rpx;          /* 限制不超过父容器宽度 */
  margin-left: 50rpx;
}