.index-view-layout--left {
    position: relative;
    font-size: var(--app-font-size);
    line-height: var(--app-line-height);
    color: var(--app-color-black);

    .index-view-sider {
        flex: none !important;
        max-width: none !important;
        transition: none 0s ease 0s;
        background-color: #001529;
        color: var(--app-color-white);

        .index-view-sider__top {
            height: 64px;
            display: flex;
            justify-content: center;
            align-items: center;

            .app-icon {
                width: 37px;
                height: 37px;
            }

            .app-caption {
                font-size: 18px;
                font-weight: 400;
                margin-left: 10px;
                color: var(--app-color-white);
            }
        }

        .app-menu {
            height: calc(100% - 164px);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .index-view-sider__bottom {
            height: 100px;
            display: flex;
            align-items: center;
            border-top: 1px solid #000;

            .collapse-icon {
                font-size: 20px;
                color: var(--app-color-white);
                margin-left: 15px;
                cursor: pointer;

                &:hover {
                    color: var(--app-color-blue);
                }
            }
        }
    }

    .index-view-split {
        position: absolute;
        left: 204px;
        width: 4px;
        height: 100%;
        cursor: w-resize;
    }

    .index-view-header {
        height: 64px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        background-color: #001529;
        color: var(--app-color-white);

        .index-view-header__left {
            display: flex;
            font-size: 21px;
            margin-left: 8px;
            align-items: center;
        }

        .index-view-header__right {
            display: flex;
            align-items: center;
            margin-right: 38px;
        }
    }

    .index-view-content {
        height: calc(100% - 64px);
        background-color: var(--app-color-gray-400);

        >.view-container {
            overflow: auto;
            margin: 0 12px;
        }

        &.index-view-content--tab {

            >.view-container {
                height: calc(100% - 65px);
            }
        }
    }
}