.ul-element-action-bar {
  position: fixed;
  right: $space-md;
  bottom: 60px; // 可根据需要调整
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: $space-md;

  &__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
  }

  &__icon {
    @include flex(center, center);
    width: 42px;
    height: 42px;
    padding: $space-xs;
    background-color: $color-white;
    border-radius: $radius-circle;
    box-shadow: $shadow-base;
    transition: all 0.3s ease;

    img {
      max-width: 100%;
      max-height: 100%;
    }

    .layui-icon,
    .fa {
      font-size: 24px;
      color: $color-text-secondary;
    }

    .layui-icon-login-wechat {
      color: $color-success-base;
    }

    .fa-arrow-up {
      color: $color-primary-base;
    }
  }

  &__title {
    margin-top: $space-xs;
    padding: 3px $space-xs;
    background-color: $color-white;
    color: $color-text-secondary;
    border-radius: $radius-sm;
    font-size: $font-size-xs;
    transition: all 0.3s ease;
  }

  &__item:hover {
    .ul-element-action-bar__icon {
      background-color: $color-primary-light;
    }
    .ul-element-action-bar__title {
      color: $color-primary-base;
      background-color: $color-primary-light;
    }
  }

  // 响应式设计
  @include media-breakpoint-down(sm) {
    right: $space-sm;
    bottom: $space-lg;
    gap: $space-sm;

    &__icon {
      width: 40px;
      height: 40px;
      .layui-icon,
      .fa {
        font-size: 20px;
      }
    }
  }
}

.ul-element-action-bar {
  position: fixed;
  right: 16px;
  bottom: 60px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ul-element-action-bar__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}
.ul-element-action-bar__icon {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: row;
  width: 42px;
  height: 42px;
  padding: 4px;
  background-color: var(--ul-color-white);
  border-radius: 50%;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
.ul-element-action-bar__icon img {
  max-width: 100%;
  max-height: 100%;
}
.ul-element-action-bar__icon .layui-icon, .ul-element-action-bar__icon .fa {
  font-size: 24px;
  color: var(--ul-color-text-secondary);
}
.ul-element-action-bar__icon .layui-icon-login-wechat {
  color: var(--ul-color-success-base);
}
.ul-element-action-bar__icon .fa-arrow-up {
  color: var(--ul-color-primary-base);
}
.ul-element-action-bar__title {
  margin-top: 4px;
  padding: 3px 4px;
  background-color: var(--ul-color-white);
  color: var(--ul-color-text-secondary);
  border-radius: 2px;
  font-size: 10px;
  transition: all 0.3s ease;
}
.ul-element-action-bar__item:hover .ul-element-action-bar__icon {
  background-color: var(--ul-color-primary-light);
}
.ul-element-action-bar__item:hover .ul-element-action-bar__title {
  color: var(--ul-color-primary-base);
  background-color: var(--ul-color-primary-light);
}
@media (max-width: 575.98px) {
  .ul-element-action-bar {
    right: 8px;
    bottom: 24px;
    gap: 8px;
  }
  .ul-element-action-bar__icon {
    width: 40px;
    height: 40px;
  }
  .ul-element-action-bar__icon .layui-icon, .ul-element-action-bar__icon .fa {
    font-size: 20px;
  }
}

<view class="ul-element-action-bar">
    <view class="ul-element-action-bar__item">
        <img class="ul-element-action-bar__icon" src="/static/images/icon-xcx.png" alt="返回小程序">
        <view class="ul-element-action-bar__title">返回小程序</view>
    </view>
    <view class="ul-element-action-bar__item">
        <view class="ul-element-action-bar__icon"><i class="fa fa-arrow-up"></i></view>
        <view class="ul-element-action-bar__title">回到顶部</view>
    </view>
</view>

.ul-element-loading-bar {
  position: relative;
  overflow: hidden; // 隐藏超出范围的动画部分
  

  &::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px; // 进度条高度
    background-color: $color-primary-base; // 默认颜色
    transform-origin: left;
    animation: ul-element-loading-bar-anim 1.5s infinite linear;
  }

  // 使用循环生成颜色变体
  @each $name, $color in $theme-colors {
    &.#{$name}::after {
      background-color: $color;
    }
  }
}

@keyframes ul-element-loading-bar-anim {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

.ul-element-loading-bar {
  position: relative;
  overflow: hidden;
}
.ul-element-loading-bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--ul-color-primary-base);
  transform-origin: left;
  animation: ul-element-loading-bar-anim 1.5s infinite linear;
}
.ul-element-loading-bar.primary::after {
  background-color: var(--ul-color-primary-base);
}
.ul-element-loading-bar.success::after {
  background-color: var(--ul-color-success-base);
}
.ul-element-loading-bar.danger::after {
  background-color: var(--ul-color-danger-base);
}
.ul-element-loading-bar.warning::after {
  background-color: var(--ul-color-warning-base);
}
.ul-element-loading-bar.info::after {
  background-color: var(--ul-color-info-base);
}
.ul-element-loading-bar.dark::after {
  background-color: var(--ul-color-dark-base);
}
.ul-element-loading-bar.light::after {
  background-color: var(--ul-color-light-base);
}
.ul-element-loading-bar.gray::after {
  background-color: var(--ul-color-gray-base);
}
@keyframes ul-element-loading-bar-anim {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

<view class="ul-flex ul-flex-column" style="gap: 16px;">
    <view class="ul-element-loading-bar primary" style="padding: 24px; border: 1px solid var(--ul-color-border); border-radius: 4px; background: var(--ul-color-white);">Primary Loading</view>
    <view class="ul-element-loading-bar success" style="padding: 24px; border: 1px solid var(--ul-color-border); border-radius: 4px; background: var(--ul-color-white);">Success Loading</view>
    <view class="ul-element-loading-bar danger" style="padding: 24px; border: 1px solid var(--ul-color-border); border-radius: 4px; background: var(--ul-color-white);">Danger Loading</view>
    <view class="ul-element-loading-bar warning" style="padding: 24px; border: 1px solid var(--ul-color-border); border-radius: 4px; background: var(--ul-color-white);">Warning Loading</view>
    <view class="ul-element-loading-bar info" style="padding: 24px; border: 1px solid var(--ul-color-border); border-radius: 4px; background: var(--ul-color-white);">Info Loading</view>
    <view class="ul-element-loading-bar dark" style="padding: 24px; border: 1px solid var(--ul-color-border); border-radius: 4px; background: var(--ul-color-white);">Dark Loading</view>
</view>

.ul-element-loading-pos {
    position: relative !important;
    cursor: wait !important;
    overflow: hidden !important;

    
    &::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-image: linear-gradient(90deg,
            rgba(120, 195, 255, 0) 0,
            rgba(120, 195, 255, 0.2) 20%,
            rgba(120, 195, 255, 0.5) 60%,
            rgba(120, 195, 255, 0));
        transform: translateX(-100%);
        animation: ul-loading-shine 2s infinite;
        z-index: 10;
    }

    &.white::after {
        background-image: linear-gradient(90deg,
            rgba(255, 255, 255, 0) 0,
            rgba(255, 255, 255, 0.2) 20%,
            rgba(255, 255, 255, 0.5) 60%,
            rgba(255, 255, 255, 0));
    }
}

@keyframes ul-loading-shine {
    100% {
        transform: translateX(100%);
    }
}

.ul-element-loading-pos {
  position: relative !important;
  cursor: wait !important;
  overflow: hidden !important;
}
.ul-element-loading-pos::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: linear-gradient(90deg, rgba(120, 195, 255, 0) 0, rgba(120, 195, 255, 0.2) 20%, rgba(120, 195, 255, 0.5) 60%, rgba(120, 195, 255, 0));
  transform: translateX(-100%);
  animation: ul-loading-shine 2s infinite;
  z-index: 10;
}
.ul-element-loading-pos.white::after {
  background-image: linear-gradient(90deg, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0.2) 20%, rgba(255, 255, 255, 0.5) 60%, rgba(255, 255, 255, 0));
}
@keyframes ul-loading-shine {
  100% {
    transform: translateX(100%);
  }
}

<view style="width: 100%; height: 200px; border: 1px solid #eee; background-color: #000;" class="ul-element-loading-pos white">
    <p>这里的内容不会被隐藏</p>
    <p>使用白色发光</p>
</view>
<view style="width: 100%; height: 200px; border: 1px solid #eee;" class="ul-element-loading-pos">
    <p>这里的内容不会被隐藏</p>
    <p>默认蓝色发光，因为很多时候没有背景色，默认使用带颜色的加载中。</p>
</view>