/* ===================================================
   1. 目录导航 (TOC) 专属样式
   =================================================== */
.faq-toc-wrapper {
    position: sticky;
    top: 90px;
    background: #fbfbfd;
    border-radius: 12px;
    padding: 24px;
    border: 1px solid #edf0f5;
    margin-bottom: 30px;
}

.faq-toc-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: #1a1a1a;
    display: flex;
    align-items: center;
}

.faq-toc-list {
    list-style: none;
    padding-left: 0;
    margin-bottom: 0;
}

.faq-toc-item {
    margin-bottom: 8px;
}

.faq-toc-link {
    color: #4a5568;
    text-decoration: none;
    font-size: 0.95rem;
    display: block;
    padding: 8px 14px;
    border-radius: 8px;
    transition: all 0.25s ease-in-out;
}

.faq-toc-link:hover,
.faq-toc-link.active {
    color: #0d6efd;
    background-color: #eaf2ff;
    font-weight: 600;
    padding-left: 18px;
}

.faq-content-container .faq-section-header {
    font-size: 1.6rem;
    font-weight: 800;
    margin-top: 45px;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 1px solid #edf0f5;
    color: #111827;
    scroll-margin-top: 100px;
}

.faq-content-container .accordion-item {
    border: none !important;
    background: transparent !important;
    margin-bottom: 16px; 
}

.faq-content-container .accordion-button {
    background-color: #f4f6f8;
    color: #111827;
    font-weight: 700;
    font-size: 1.05rem;
    border-radius: 10px !important;
    padding: 18px 24px;
    box-shadow: none !important;
    border: none !important;
    transition: all 0.2s ease-in-out;
}

.faq-content-container .accordion-button:not(.collapsed) {
    background-color: #0d6efd !important; 
    color: #ffffff !important;
    border-radius: 10px !important;
    box-shadow: 0 4px 14px rgba(13, 110, 253, 0.2) !important;
}

.faq-content-container .accordion-button::after {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background-image: none !important; 
    content: "+" !important;
    font-size: 20px;
    font-weight: 700;
    line-height: 1;
    color: #111827;
    background-color: #ffffff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.faq-content-container .accordion-button:not(.collapsed)::after {
    content: "−" !important; 
    font-size: 22px;
    color: #0d6efd !important;
    background-color: #ffffff !important;
    transform: none !important;
}

.faq-content-container .accordion-body {
    padding: 24px 10px 10px 10px;
    color: #4b5563;
    font-size: 1rem;
    line-height: 1.75;
}

.faq-content-container .troubleshoot-box {
    background-color: #f8fafc;
    border-left: 4px solid #0d6efd;
    padding: 16px 20px;
    border-radius: 0 8px 8px 0;
    margin: 15px 0;
}

.faq-content-container .accordion-body {
    line-height: 1.75;          
    font-size: 15px;             
}

.faq-content-container .accordion-body p {
    margin-bottom: 16px;         
    line-height: 1.75;
}

.faq-content-container .accordion-body p:last-child {
    margin-bottom: 0;
}

.faq-content-container .troubleshoot-box p {
    margin-bottom: 14px;
    line-height: 1.7;
}

.faq-content-container .troubleshoot-box p:last-child {
    margin-bottom: 0;
}

.faq-content-container .accordion-body ol,
.faq-content-container .accordion-body ul {
    margin-top: 8px;
    margin-bottom: 16px;
    padding-left: 20px;         
}

.faq-content-container .accordion-body ol > li,
.faq-content-container .accordion-body ul > li {
    margin-bottom: 12px;         
    line-height: 1.72;          
}

.faq-content-container .accordion-body ol > li:last-child,
.faq-content-container .accordion-body ul > li:last-child {
    margin-bottom: 0;
}

.faq-content-container .accordion-body li > ul,
.faq-content-container .accordion-body li > ol {
    margin-top: 8px;
    margin-bottom: 8px;
    padding-left: 18px;
}

.faq-content-container .accordion-body strong,
.faq-content-container .accordion-body b {
    font-weight: 600;
}

.faq-content-container .accordion-body a {
    color: #008cff !important;           
    text-decoration: underline;          
    text-underline-offset: 3px;           
    transition: color 0.2s ease, opacity 0.2s ease;
}

.faq-content-container .accordion-body a:hover {
    color: #0070cc !important;           
    opacity: 0.85;
}