.nav-bar {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 9999;
    color: #fff;
    background: #C7DDFF;

    .view {
        width: 100%;
        color: #2D2D2D;
        position: absolute;
        display: flex;
        align-items: center;
        justify-content: center;

        .selectGrade {
            position: absolute;
            left: 22rpx;
            width: 158rpx;
            height: 48rpx;
            line-height: 48rpx;
            border-radius: 25rpx;
            background-color: #ffffffa6;
            color: #333;
            font-size: 24rpx;
            text-align: center;
        }

        .title {
            text-align: center;
        }
    }


}

.headerBg {
    z-index: -1;
    position: absolute;
    left: 0px;
    width: 100%;
    height: 210rpx;
    background: url(https://reader-wx.ai160.com/images/reader/v3/navbarBg.png) no-repeat;
    background-size: 100% 100%;
    background-position: center;
}

.gradeContainer {
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .7);
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 9999;

    .gradeBox {
        width: 520rpx;
        padding: 33rpx 40rpx 50rpx;
        border-radius: 20rpx;
        background-color: white;

        .title {
            text-align: center;
            font-size: 40rpx;
            font-weight: bold;
        }

        .content {
            margin-top: 55rpx;
            display: flex;
            justify-content: space-between;
            align-items: center;

            .grade {
                padding: 12rpx 64rpx;
                border-radius: 50rpx;
                font-size: 36rpx;
                color: #333;
                background-color: #E4E4E4;
            }

            .oneRow {
                width: 100%;
                text-align: center;
            }

            .check {
                color: white;
                background-color: #1CCC69;
            }
        }

        .submitBox {
            text-align: center;

            .submit {
                width: 360rpx;
                margin-top: 60rpx;
                padding: 14rpx 0rpx;
                display: inline-block;
                background-color: #45B7FF;
                color: white;
                font-size: 42rpx;
                border-radius: 50rpx;
            }
        }
    }
}