/* 容器基础样式 */
    .pst-faq-container {
        max-width: 800px;
        margin: 40px auto;
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    }

    .pst-faq-title {
        text-align: center;
        color: #2E55C8;
        font-size: 28px;
        font-weight: 700;
        margin-bottom: 30px;
    }

    /* FAQ 卡片样式 */
    .pst-faq-item {
        background-color: #FFFFFF;
        border: 1px solid #E5E7EB;
        border-radius: 8px;
        margin-bottom: 12px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
        overflow: hidden;
        transition: all 0.3s ease;
    }

    .pst-faq-item:hover {
        box-shadow: 0 4px 12px rgba(46, 85, 200, 0.1);
        border-color: #2E55C8;
    }

    /* 问题按钮样式 */
    .pst-faq-question {
        width: 100%;
        text-align: left;
        padding: 20px 24px;
        background: none;
        border: none;
        font-size: 16px;
        font-weight: 600;
        color: #1F2937;
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        transition: color 0.3s ease;
    }

    /* 激活状态下的问题文字颜色 */
    .pst-faq-item.active .pst-faq-question {
        color: #2E55C8;
    }

    /* 右侧加减号/箭头图标 */
    .pst-faq-icon {
        position: relative;
        width: 20px;
        height: 20px;
        flex-shrink: 0;
        margin-left: 15px;
    }

    .pst-faq-icon::before,
    .pst-faq-icon::after {
        content: '';
        position: absolute;
        background-color: #2E55C8;
        transition: transform 0.3s ease;
    }

    /* 横线 */
    .pst-faq-icon::before {
        top: 9px;
        left: 0;
        width: 20px;
        height: 2px;
        border-radius: 2px;
    }

    /* 竖线 */
    .pst-faq-icon::after {
        top: 0;
        left: 9px;
        width: 2px;
        height: 20px;
        border-radius: 2px;
    }

    /* 激活状态下竖线旋转消失（变成减号） */
    .pst-faq-item.active .pst-faq-icon::after {
        transform: rotate(90deg) scale(0);
    }
    
    .pst-faq-item.active .pst-faq-icon::before {
        transform: rotate(180deg);
    }

    /* 答案区域样式 */
    .pst-faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        background-color: #F9FAFB;
    }

    .pst-faq-answer-inner {
        padding: 0 24px 24px 24px;
        font-size: 15px;
        line-height: 1.6;
        color: #4B5563;
        border-top: 1px solid transparent;
    }
    
    .pst-faq-item.active .pst-faq-answer-inner {
        border-top: 1px solid #E5E7EB;
        padding-top: 16px;
    }