.course-list {
                                                                        width: fit-content;
                                                                        background: #fff;

                                                                    }

                                                                    .course-item {
                                                                        display: flex;
                                                                        justify-content: space-between;
                                                                        align-items: center;
                                                                        padding: 16px 20px;
                                                                        border-bottom: 1px solid #e8e8e8;
                                                                    }

                                                                    .course-item:last-child {
                                                                        border-bottom: none;
                                                                    }

                                                                    .left {
                                                                        display: flex;
                                                                        align-items: center;
                                                                        gap: 12px;
                                                                    }

                                                                    .left i {
                                                                        color: #555;
                                                                        font-size: 18px;
                                                                    }

                                                                    .title {
                                                                        font-size: 18px;
                                                                        color: #555;
                                                                    }

                                                                    .right {
                                                                        display: flex;
                                                                        align-items: center;
                                                                        gap: 20px;
                                                                    }

                                                                    .preview {
                                                                        color: #00796b;
                                                                        text-decoration: underline;
                                                                        font-size: 18px;
                                                                    }

                                                                    .time {
                                                                        color: #666;
                                                                        font-size: 18px;
                                                                    }

                                                                    .lock {
                                                                        color: #666;
                                                                        font-size: 18px;
                                                                    }

                                                                    .question {
                                                                        color: #666;
                                                                        font-size: 18px;
                                                                    }