amis/packages/amis-ui/scss/components/_timeline.scss

.#{$ns}Timeline-vertical {
  display: flex;
  flex-flow: column;

  .#{$ns}TimelineItem {
    display: flex;
    flex: 1;
    flex-direction: row;

    &:last-of-type {
      .#{$ns}TimelineItem-axle .#{$ns}TimelineItem-line {
        display: none;
      }
    }

    &-axle {
      position: relative;
      flex: var(--TimelineItem--axle-flex);

      .#{$ns}TimelineItem-line {
        position: absolute;
        height: calc(100% - var(--TimelineItem--left-line-top));
        width: var(--TimelineItem--left-line-width);
        left: var(--TimelineItem--left-line-left);
        top: var(--TimelineItem--left-line-top);
        background-color: var(--TimelineItem--line-bg);
        &-icon {
          left: var(--TimelineItem--icon-left-line-left);
        }
      }

      .#{$ns}TimelineItem-round {
        position: absolute;
        width: var(--TimelineItem--round-width);
        height: var(--TimelineItem--round-height);
        left: var(--TimelineItem--round-left);
        top: var(--TimelineItem--round-top);
        background: var(--TimelineItem-round-bg);
        border-radius: var(--TimelineItem--round-radius);

        &--danger {
          background: var(--Timeline--danger-bg);
        }

        &--info {
          background: var(--Timeline--info-bg);
        }

        &--success {
          background: var(--Timeline--success-bg);
        }

        &--warning {
          background: var(--Timeline--warning-bg);
        }
      }

      .#{$ns}TimelineItem-icon {
        position: absolute;
        width: var(--TimelineItem--icon-width);
        height: var(--TimelineItem--icon-height);
        left: var(--TimelineItem--icon-left);
        border-radius: var(--TimelineItem--icon-radius);
      }
    }

    &-content {
      padding-bottom: var(--TimelineItem--content-padding-bottom);
      margin-left: var(--TimelineItem--content-margin-left);

      .#{$ns}TimelineItem-time {
        color: var(--TimelineItem--text-secondary-color);
        font-size: var(--Timeline-time-fontSize);
        font-weight: var(--Timeline-time-fontWeight);
        margin-bottom: var(--TimelineItem--content-time-margin-bottom);
      }

      .#{$ns}TimelineItem-title {
        display: flex;
        color: var(--TimelineItem--text-primary-color);
        font-size: var(--Timeline-title-fontSize);
        font-weight: var(--Timeline-title-fontWeight);
        margin-bottom: var(--TimelineItem--content-title-margin-bottom);
        .#{$ns}PlainField {
          padding-right: var(--TimelineItem-custem-time-padding-right);
        }
        .#{$ns}Button {
          margin-left: var(--TimelineItem-custem-button-margin-left);
        }
      }

      .#{$ns}TimelineItem-detail {
        .#{$ns}TimelineItem-detail-button {
          display: flex;
          cursor: pointer;
          align-items: center;
          font-size: var(--Timeline-detail-label-fontSize);
          color: var(--TimelineItem--detail-button-color);
          font-weight: var(--Timeline-detail-label-fontWeight);
          margin-bottom: var(--TimelineItem--detail-button-margin-bottom);
        }
        .#{$ns}TimelineItem-detail-arrow {
          color: var(--Timeline-detail-icon-color);
          width: var(--TimelineItem-detail-arrow-width);
          height: var(--TimelineItem-detail-arrow-width);
        }

        .#{$ns}TimelineItem-detail-arrow-top {
          transform: rotateX(180deg);
        }

        .#{$ns}TimelineItem-detail-visible {
          display: block;
          border-radius: var(--Timeline-visible-border-radius);
          max-width: var(--TimelineItem-detail-visible-max-width);
          font-size: var(--Timeline-detail-content-fontSize);
          font-weight: var(--Timeline-detail-content-fontWeight);
          color: var(--Timeline-detail-content-color);
          padding: var(--TimelineItem-detail-visible-padding);
          box-shadow: var(--TimelineItem-detail-visible-shadow);
        }

        .#{$ns}TimelineItem-detail-invisible {
          display: none;
        }
      }
    }
  }

  &.#{$ns}Timeline-left {
    .#{$ns}TimelineItem {
      flex-direction: row-reverse;
    }
  }

  &.#{$ns}Timeline-alternate {
    .#{$ns}TimelineItem:nth-child(odd) {
      flex-direction: row-reverse;
      max-width: 50%;
    }

    .#{$ns}TimelineItem:nth-child(even) {
      margin-left: calc(50% - var(--Timeline-alternate-margin-left));
      max-width: calc(50% + var(--Timeline-alternate-margin-left));
    }
  }
}

.#{$ns}Timeline-horizontal {
  display: flex;
  flex-flow: row;
  margin-left: 50%;
  transform: translateX(-50%);

  .#{$ns}TimelineItem {
    display: flex;
    width: -webkit-fill-available;
    flex-flow: column;

    &:last-of-type {
      .#{$ns}TimelineItem-axle .#{$ns}TimelineItem-line {
        display: none;
      }
    }

    &-axle {
      position: relative;
      flex: var(--TimelineItem--axle-flex);

      .#{$ns}TimelineItem-line {
        position: absolute;
        height: var(--TimelineItem--left-line-width);
        width: calc(100% - var(--TimelineItem--left-line-left));
        left: var(--TimelineItem--horizontal-left-line-top);
        top: var(--TimelineItem--left-line-left);
        background-color: var(--TimelineItem--line-bg);
      }

      .#{$ns}TimelineItem-round {
        position: absolute;
        width: var(--TimelineItem--round-width);
        height: var(--TimelineItem--round-height);
        left: var(--TimelineItem--round-top);
        top: var(--TimelineItem--round-left);
        background: var(--TimelineItem-round-bg);
        border-radius: var(--TimelineItem--round-radius);

        &--danger {
          background: var(--Timeline--danger-bg);
        }

        &--info {
          background: var(--Timeline--info-bg);
        }

        &--success {
          background: var(--Timeline--success-bg);
        }

        &--warning {
          background: var(--Timeline--warning-bg);
        }
      }

      .#{$ns}TimelineItem-icon {
        position: absolute;
        width: var(--TimelineItem--icon-width);
        height: var(--TimelineItem--icon-height);
        left: var(--TimelineItem--icon-left);
        border-radius: var(--TimelineItem--icon-radius);
      }
    }
    &-content {
      margin-top: var(--Timeline-horizontal-content-margin-top);
      padding-bottom: var(--TimelineItem--content-padding-bottom);
      margin-left: var(--TimelineItem--content-margin-left);

      .#{$ns}TimelineItem-time {
        color: var(--TimelineItem--text-secondary-color);
        font-size: var(--Timeline-time-fontSize);
        font-weight: var(--Timeline-time-fontWeight);
        margin-bottom: var(--TimelineItem--content-time-margin-bottom);
      }

      .#{$ns}TimelineItem-title {
        color: var(--TimelineItem--text-primary-color);
        font-size: var(--Timeline-title-fontSize);
        font-weight: var(--Timeline-title-fontWeight);
        margin-bottom: var(--TimelineItem--content-title-margin-bottom);
      }

      .#{$ns}TimelineItem-detail {
        .#{$ns}TimelineItem-detail-button {
          display: flex;
          cursor: pointer;
          align-items: center;
          font-size: var(--Timeline-detail-label-fontSize);
          color: var(--TimelineItem--detail-button-color);
          font-weight: var(--Timeline-detail-label-fontWeight);
          margin-bottom: var(--TimelineItem--detail-button-margin-bottom);
        }

        .#{$ns}TimelineItem-detail-arrow {
          color: var(--Timeline-detail-icon-color);
          width: var(--TimelineItem-detail-arrow-width);
          height: var(--TimelineItem-detail-arrow-width);
        }

        .#{$ns}TimelineItem-detail-arrow-top {
          transform: rotateX(180deg);
        }

        .#{$ns}TimelineItem-detail-visible {
          display: block;
          border-radius: var(--Timeline-visible-border-radius);
          max-width: var(--TimelineItem-detail-visible-max-width);
          font-size: var(--Timeline-detail-content-fontSize);
          font-weight: var(--Timeline-detail-content-fontWeight);
          color: var(--Timeline-detail-content-color);
          padding: var(--TimelineItem-detail-visible-padding);
          box-shadow: var(--TimelineItem-detail-visible-shadow);
        }

        .#{$ns}TimelineItem-detail-invisible {
          display: none;
        }
      }
    }
  }
}