组件样式，批量 rem 换 px，兼容小程序

Tevin

2021-03-17 54f1f35024c29f1cadc77d17ad7d5e66e644fb23

 forms/chinaArea/cChinaArea.scss

@@ -17,12 +17,15 @@
        }
        .at-icon-loading,
        .at-icon-chevron-right {
            font-size: 1.024rem;
            font-size: 48px;
            color: #ccc;
        }
        .at-icon-loading {
            margin-right: 0.2rem;
            margin-right: 9px;
            animation: atRotate 1s linear infinite;
        }
    }
    .at-input__icon {
        display: none;
    }
}