/**
 * 数学页面公共样式
 */
page {
    background-color: #f6f6f6;
}

.page-container {
    background-color: #f6f6f6;
    padding: 0 24rpx;
    box-sizing: border-box;
    padding-bottom: 160rpx; // 为底部按钮预留空间

    .empty {
        height: 50rpx;
    }
}

.wrapper {
    background-color: #ffffff;
    border-radius: 20rpx;
    padding: 36rpx 24rpx;
    box-shadow: 0 6rpx 8rpx rgba(0, 0, 0, 0.15);
    margin: 30rpx 0;
    display: flex;
    flex-direction: column;

    .wrapper-title {
        font-size: 32rpx;
        color: #141414;
        margin-bottom: 36rpx;
        font-weight: bold;
        text-align: center;
    }

    .canvas-wrapper {
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 400rpx;
        background: #f8f9fa;
        border-radius: 12rpx;
        border: 2rpx dashed #dee2e6;
    }

    .canvas-content {
        max-width: 100%;
        border-radius: 8rpx;
        box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.1);
        overflow: hidden;
    }

    .random-button-area {
        margin-top: 40rpx;
        display: flex;
        align-items: center;
        gap: 20rpx;

        .type-selector {
            flex: 1; // 占据剩余空间
            height: 80rpx;
            background-color: #fff;
            border: 2rpx solid #e5e5e5;
            border-radius: 16rpx;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24rpx;
            box-sizing: border-box;

            .type-selector-text {
                font-size: 28rpx;
                color: #333;
            }

            .type-selector-arrow {
                font-size: 20rpx;
                color: #999;
            }
        }

        .random-button {
            flex: 2;
        }
    }
}

/* 底部按钮区域 */
.bottom-btn-box {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 180rpx;
    display: flex;
    justify-content: space-between;
    background-color: #fff;
    box-shadow: 0px -3.9rpx 5.2rpx rgba(0, 0, 0, 0.15);
    padding: 24rpx;
    padding-bottom: env(safe-area-inset-bottom);
    box-sizing: border-box;
    border-radius: 16rpx 16rpx 0 0;
    z-index: 2;
}