vant-weapp/packages/radio/index.pcss

.van-radio {
    display: block;
    padding: 0 10px;
    font-size: 14px;

    &__item {
        display: block;
        margin-top: 10px;
        height: 20px;

        &:last-child {
            margin-bottom: 10px;
        }
    }

    &__list-item {
        display: block;
        padding: 10px 10px 10px 0;
        border-bottom: 1px solid #e5e5e5;
        .van-radio__icon-wrap {
            float: right;
            margin-top: 3px;
        }
    }

    &__icon-wrap {
        position: relative;
        width: 14px;
        height: 15px;
        display: inline-flex;
        align-items: center;
        color: #aaa;
        .van-radio__origin {
            opacity: 0;
            width: 14px;
            height: 20px;
        }
        .van-radio__icon {
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%,-50%);
            border: 1px solid #dcdfe6;
            border-radius: 100%;
            width: 14px;
            height: 14px;
            background-color: #fff;
            cursor: pointer;
            box-sizing: border-box;

            .van-radio__icon-inside {
                position: absolute;
                left: 50%;
                top: 50%;
                transform: translate(-50%,-50%);
                width: 4px;
                height: 4px;
                border-radius: 50%;
            }

            &.van-radio--checked {
                border-color: #06bf04;
                background: #06bf04;
                .van-radio__icon-inside {
                    background-color: #fff;
                }
            }

            &.van-radio--disabled {
                opacity: .6;
            }
        }
    }

    &__name {
        display: inline-block;
        margin-left: 10px;
    }
}