.accordion-container {
    width: 100%;
    padding: 50px 176px;
}

.accordion-item {
    margin-bottom: 15px;
    border: none;
}

.accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    cursor: pointer;
    transition: background-color 0.3s ease;
    position: relative;
    width: 100%;
    box-sizing: border-box;
}

.accordion-item.active .accordion-header {
    background-color: #9E0D30;
    color: #fff;
}

.accordion-icon {
    width: 0;
    height: 0;
    border-top: 15px solid transparent;
    border-bottom: 15px solid transparent;
    border-left: 20px solid #9E0D30;
    transition: all 0.3s ease;
}


.accordion-item.active .accordion-icon {
    border-left-color: white;
}

.accordion-title {
    flex: 1;
    font-family: 'Times New Roman', Times, serif;
    font-size: 18px;
    font-weight: 400;
    padding-left: 30px;
    margin-right: 15px;
    text-align: left;
}

.accordion-item.active .accordion-title {
    color: #fff;
}

.accordion-toggle {
    width: 27px;
    height: 27px;
    color: #9E0D30;          /* 图标颜色 */
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: color 0.3s ease;
    margin-left: auto;
    position: relative;
}

.accordion-toggle::before,
.accordion-toggle::after {
    content: '';
    position: absolute;
    background: currentColor;
    transition: all 0.3s ease;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.accordion-toggle::before {   /* 横线 */
    width: 19px;
    height: 4px;
}

.accordion-toggle::after {    /* 竖线 */
    width: 4px;
    height: 19px;
}

/* 激活状态 */
.accordion-item.active .accordion-toggle {
    color: #fff;
}
.accordion-item.active .accordion-toggle::after {
    transform: translate(-50%, -50%) scale(0);
}

.accordion-content {
    display: none;
    padding: 40px 0;
    background-color: #fff;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}


.course-table {
    width: 100%;
    border-collapse: collapse;
    font-family: DM Sans, DM Sans;
    font-weight: 400;
    font-size: 19px;
    color: #202020;
}

.course-table th {
    background-color: #f0f0f0;
    border: 1px solid #ddd;
    padding: 20px 20px;
    text-align: center;
}

.course-table td {
    border: 1px solid #ddd;
    padding: 36px 20px;
    text-align: center;
}

.course-table tr:hover td {
    background-color: #f9f9f9;
}