client-app/components/hc-tree/style.scss

.hc-tree-box {
    position: relative;
    background: #ffffff;
    color: #606266;
    font-size: 28rpx;
    padding: 18rpx;
    width: 100%;
    overflow: auto;
    .no-data {
        position: relative;
        text-align: center;
        font-size: 26rpx;
    }
    .hc-tree-node {
        position: relative;
        white-space: nowrap;
        outline: none;
        :deep(.content-bar) {
            position: relative;
            display: flex;
            align-items: center;
            height: 30px;
            .expand-icon {
                color: #a8abb2;
                width: 22px;
                height: 22px;
                display: flex;
                align-items: center;
                justify-content: center;
                margin-right: 4px;
                text {
                    width: 22px;
                    height: 22px;
                    box-sizing: content-box;
                    transform: rotate(0);
                    transition: transform .3s ease-in-out;
                }
                &.is-expanded text {
                    transform: rotate(90deg);
                }
            }
            .tree-check, .tree-radio {
                width: 22px;
                height: 22px;
                margin-right: 4px;
                text {
                    width: 22px;
                    height: 22px;
                }
                text.c1 {
                    color: #a8abb2;
                }
                text.c2, text.c3 {
                    color: var(--primary-color);
                }
            }
            .label {
                margin-left: 6px;
                white-space: nowrap;
                padding-right: 28rpx;
            }
            .expand-icon + .label,
            .tree-check + .label {
                margin-left: 4rpx;
            }
            &.current-node-key {
                background: #f4f4f4;
                border-radius: 5rpx;
                color: #007aff;
            }
        }
        :deep(.children-bar) {
            //overflow: hidden;
        }
        &.pl {
            padding-left: 14px;
        }
    }
}