.tab_list li a{
  color: inherit;
}

.article_detail {
  background-color: #f5f5f5;
  padding-bottom: 60px;
}

.detail_head {
  border-bottom: 1px solid #ebedf0;
  padding-bottom: 30px;
  margin-top: -10px;
  /* line-height: 70px; */
}
.detail_body {
  position: relative;
}
.detail_body .posi_bg {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 145px;
  color: #f8faf9;
  z-index: 0;
  line-height: 115px;
}
.detail_body h1 {
  font-size: 26px;
  color: #333;
}
.detail_body .time {
  font-size: 14px;
  color: #666666;
  margin-bottom: 30px;
}
.detail_body .content {
  margin-top: 40px;
  font-size: 16px;
  color: #666666;
  line-height: 2;
  /* position: relative; */
  /* z-index: 10; */
}
.detail_body .content video {
  width: 100%;
}

.readingGuide {
  display: none;
  margin-top: 30px;
  font-size: 20px;
  font-family: 'Microsoft YaHei', 'Helvetica Neue', 'PingFang SC', sans-serif;
}

.readingGuide-content {
  margin-top: 10px;
  line-height: 1.8;
  font-size: 18px;
}

#detail-mp3 {
  display: block;
  width: 460px;
}

.read-aloud-box {
  display: flex;
  align-items: center;
  width: 600px;
  height: 56px;
  padding: 0 20px;
  border: 1px solid #ededed;
  border-radius: 4px;
}

.read-aloud-btn {
  display: inline-block;
  width: 35px;
  height: 35px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  cursor: pointer;
}

.read-aloud-btn.playing {
  background: url(../image/play.png) no-repeat center/cover;
}

.read-aloud-btn.paused {
  background: url(../image/pause.png) no-repeat center/cover;
}

.music-animation {
    display: block;
    height: 15px;
    margin-left: 15px;
}

.music-animation li {
    position: relative;
    height: 100%;
    width: 2px;
    margin: 0 1px;
    background: #adadad;
    display: inline-block;
    animation-duration: 3s;
    animation-iteration-count: infinite;
    animation-timing-function: ease-in-out;
}

.music-animation li.playing {
  animation-name: wave;
}

.music-animation .rect-2 {
    transform: scaleY(1.5);
    animation-delay: .1s;
}

.music-animation .rect-3 {
    animation-delay: .2s;
}

.music-animation .rect-4 {
    transform: scaleY(1.5);
    animation-delay: .3s;
}

.music-animation .rect-5 {
    animation-delay: .4s;
}

.music-animation .rect-6 {
    transform: scaleY(1.5);
    animation-delay: .5s;
}

@keyframes wave {
    0%,100% {
        transform: scaleY(.8);
    }

    16.67% {
        transform: scaleY(2);
    }

    33.33% {
        transform: scaleY(.8);
    }

    50% {
        transform: scaleY(2);
    }

    66.67% {
        transform: scaleY(.8);
    }

    83.34% {
        transform: scaleY(2);
    }
}