.container {
    padding: 20rpx;
    background-color: #f5f7fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.card-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    padding: 20rpx;
    background: white;
    border-radius: 20rpx;
    margin-bottom: 30rpx;
    box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.05);
}

.shape-card {
    width: 200rpx;
    height: 200rpx;
    margin: 15rpx;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16rpx;
    background: white;
    box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.08);
}

.shape-image {
    width: 140rpx;
    height: 140rpx;
}

.color-box {
    position: absolute;
    bottom: 10rpx;
    right: 10rpx;
    width: 30rpx;
    height: 30rpx;
    border-radius: 6rpx;
    border: 1rpx solid #eee;
}

.control-panel {
    display: flex;
    flex-direction: column;
    gap: 20rpx;
    padding: 30rpx;
    background: white;
    border-radius: 20rpx;
    margin-bottom: 30rpx;
    box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.05);
}

.bg-picker {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20rpx;
    padding: 20rpx;
    background: white;
    border-radius: 20rpx;
    margin-bottom: 30rpx;
    box-shadow: 0 4rpx 12rpx rgba(0, 0, 0, 0.05);
}

.label {
    font-weight: bold;
    color: #333;
}

.preview-image {
    width: 100%;
    height: 600rpx;
    background-color: white;
    border-radius: 20rpx;
    margin-top: 20rpx;
    box-shadow: 0 8rpx 24rpx rgba(0, 0, 0, 0.1);
    border: 1rpx solid #eee;
}