.tab.actives::before {
    content: ""; /* 使用伪元素创建背景 */
    position: absolute;
    bottom: -10px; /* 向下延伸，与文字间留出空隙 */
    left: 0;
    right: 0;
    height: 26px; /* 高亮背景高度 */
    background-color: #f2a900 !important; /* 高亮背景颜色 */
    border-radius: 10px 10px 0 0; /* 圆角背景 */
    z-index: -1; /* 保证伪元素在文字下方 */
}

.tab.actives1::before {
    content: ""; /* 使用伪元素创建背景 */
    position: absolute;
    bottom: -10px; /* 向下延伸，与文字间留出空隙 */
    left: 0;
    right: 0;
    height: 26px; /* 高亮背景高度 */
    background-color: #4541C4; /* 高亮背景颜色 */
    border-radius: 10px 10px 0 0; /* 圆角背景 */
    z-index: -1; /* 保证伪元素在文字下方 */
}
/* Tab 样式 */
.tab {
    position: relative; /* 设置相对定位，确保 z-index 生效 */
    color: white; /* 文字颜色 */
    font-size: 16px;
    font-weight: bold;
    z-index: 2; /* 确保文字在背景伪元素上方 */
    padding: 5px 20px; /* 文字的内边距 */
    cursor: pointer;
}
  .header ul li {
    list-style: none;
    margin-bottom: 0;
    margin-top: 0;
    font-size: 18px;
    line-height: 26px;
  }

  .header .iconfont {
    font-size: 20px;
    color: #fff;
  }
  .active {
    background-image: url("../images/tab2.png") !important;
    background-size: 100% 100%;
    width: 150px;
    height: 50px;
    line-height: 60px;
  }

  .noactive {
    background-image: url("../images/tab1.png");
    background-size: 100% 100%;
    width: 150px;
    height: 50px;
    line-height: 60px;
  }

  .donghua :hover {
    transform: scale(1.01)
  }
  .active {
    background-color: #44BCE9;
    border-radius: 50px;
  }
  .donghua1 :hover {
    transform: scale(1.01);
  }
              @keyframes glowing-border {
                0% { border-color: #ff33cc; box-shadow: 0 0 20px #ff33cc; }
                50% { border-color: #ffcc00; box-shadow: 0 0 20px #ffcc00; }
                100% { border-color: #00cc66; box-shadow: 0 0 20px #00cc66; }
              }

              .play_btn {
                border-radius: 30px;
                animation: glowing-border 3s infinite;
                border: 4px solid #ff33cc;
                text-align: center;
              }

              @keyframes scaleAnimation {
                0% { transform: scale(1); }
                50% { transform: scale(1.1); }
                100% { transform: scale(1); }
              }

              .donghua {
                animation: scaleAnimation 1s infinite alternate;
              }
  #content_html {
    max-width: 100vw;
    overflow: auto;
  }

  html {
    font-family: sans-serif;
    ;
  }

  @media screen and (-webkit-min-device-pixel-ratio:0) {
    input {
      font-size: 16px;
    }
  }

  .light-beam {
    position: relative;
    overflow: hidden;
  }

  .light-beam::after {
    position: absolute;
    top: 0;
    background: linear-gradient(90deg, hsla(0, 0%, 100%, 0) 0, hsla(0, 0%, 100%, .5) 25%, #fff 50%, hsla(0, 0%, 100%, .5) 75%, hsla(0, 0%, 100%, 0));
    content: "";
    -webkit-animation: bright 5.5s infinite;
    animation: bright 5.5s infinite;
    z-index: 1;
    width: 100%;
    height: 100%;
  }

  @keyframes bright {
    0% {
      transform: translateX(-180%) skewX(45deg);
    }

    100% {
      transform: translateX(420%) skewX(45deg);
    }
  }
  .trembling {
    animation: trembling 5s linear infinite backwards;
    -webkit-animation: trembling 5s linear infinite backwards;
    -moz-animation: trembling 5s linear infinite backwards
  }

  @-webkit-keyframes trembling {
    26% {
      transform: rotate(0deg) scale(1);
      -webkit-transform: rotate(0deg) scale(1)
    }

    28% {
      transform: rotate(-2deg) scale(1.04);
      -webkit-transform: rotate(-2deg) scale(1.04)
    }

    32% {
      transform: rotate(1deg) scale(1.01);
      -webkit-transform: rotate(1deg) scale(1.01)
    }

    34% {
      transform: rotate(-2deg) scale(1.02);
      -webkit-transform: rotate(-2deg) scale(1.02)
    }

    36% {
      transform: rotate(3deg) scale(1);
      -webkit-transform: rotate(3deg) scale(1)
    }

    39% {
      transform: rotate(-1deg) scale(1);
      -webkit-transform: rotate(-1deg) scale(1)
    }

    44% {
      transform: rotate(0deg) scale(1);
      -webkit-transform: rotate(0deg) scale(1)
    }
  }
  @keyframes trembling {
    26% {
      transform: rotate(0deg) scale(1);
      -webkit-transform: rotate(0deg) scale(1)
    }

    28% {
      transform: rotate(-2deg) scale(1.04);
      -webkit-transform: rotate(-2deg) scale(1.04)
    }

    32% {
      transform: rotate(1deg) scale(1.01);
      -webkit-transform: rotate(1deg) scale(1.01)
    }

    34% {
      transform: rotate(-2deg) scale(1.02);
      -webkit-transform: rotate(-2deg) scale(1.02)
    }

    36% {
      transform: rotate(3deg) scale(1);
      -webkit-transform: rotate(3deg) scale(1)
    }

    39% {
      transform: rotate(-1deg) scale(1);
      -webkit-transform: rotate(-1deg) scale(1)
    }

    44% {
      transform: rotate(0deg) scale(1);
      -webkit-transform: rotate(0deg) scale(1)
    }
  }