.ider-faq-section {
        padding: 60px 0;
        font-family: inherit;
        background-color: #f9f9fa; 
    }
    .ider-faq-header {
        text-align: center;
        margin-bottom: 50px;
    }
    .ider-faq-title {
        color: #04006F; 
        font-size: 36px;
        font-weight: bold;
        margin-bottom: 15px;
        text-transform: uppercase;
    }
    .ider-faq-subtitle {
        font-size: 16px;
        color: #555;
        max-width: 600px;
        margin: 0 auto;
    }
    .ider-faq-container {
        max-width: 800px;
        margin: 0 auto;
    }
    .ider-faq-item {
        background-color: #ffffff;
        border: 1px solid #e5e5e5;
        border-radius: 8px;
        margin-bottom: 15px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        overflow: hidden;
        transition: all 0.3s ease;
    }
    /* 标题区域 */
    .ider-faq-question {
        padding: 20px 25px;
        font-size: 18px;
        font-weight: bold;
        color: #04006F;
        cursor: pointer;
        position: relative;
        background-color: #ffffff;
        transition: background-color 0.3s ease;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
    .ider-faq-question:hover {
        background-color: #fdfcf8;
    }
    /* 右侧加减号图标设计 */
    .ider-faq-icon {
        position: relative;
        width: 20px;
        height: 20px;
        flex-shrink: 0;
        margin-left: 15px;
    }
    .ider-faq-icon::before, .ider-faq-icon::after {
        content: '';
        position: absolute;
        background-color: #F2BA02; /* 明黄点缀色 */
        transition: transform 0.4s ease;
    }
    .ider-faq-icon::before {
        top: 9px;
        left: 0;
        width: 20px;
        height: 2px;
    }
    .ider-faq-icon::after {
        top: 0;
        left: 9px;
        width: 2px;
        height: 20px;
    }
    
    /* 内容包裹层：使用 CSS Grid 实现丝滑高度动画 */
    .ider-faq-answer-wrapper {
        display: grid;
        grid-template-rows: 0fr;
        transition: grid-template-rows 0.4s ease-in-out;
        background-color: #ffffff;
    }
    .ider-faq-answer-inner {
        overflow: hidden; /* 动画必需属性 */
    }
    .ider-faq-answer-text {
        padding: 0 25px 20px 25px;
        font-size: 15px;
        line-height: 1.6;
        color: #555;
        border-top: 1px dashed transparent;
        transition: border-color 0.4s ease;
    }

    /* ==== 激活（打开）状态下的样式 ==== */
    .ider-faq-item.active {
        border-color: #04006F;
        box-shadow: 0 5px 15px rgba(4,0,111,0.08);
    }
    .ider-faq-item.active .ider-faq-question {
        background-color: #fdfcf8;
    }
    .ider-faq-item.active .ider-faq-answer-wrapper {
        grid-template-rows: 1fr; /* 展开内容 */
    }
    .ider-faq-item.active .ider-faq-answer-text {
        border-top-color: #e5e5e5; /* 展开后显示虚线分割线 */
        padding-top: 20px; 
    }
    /* 激活时，垂直线条旋转变平，形成减号 "-" */
    .ider-faq-item.active .ider-faq-icon::after {
        transform: rotate(90deg);
    }