/* ==================== FAQ页面样式 ==================== */

.faq-page {
    margin-top: 70px;
    padding: 60px 0;
    background-color: var(--surface);
    min-height: calc(100vh - 70px);
}

.faq-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 40px 20px;
}

.faq-header h1 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.faq-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* ==================== 分类按钮 ==================== */
.faq-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background-color: white;
    color: var(--primary-color);
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s;
}

.category-btn:hover {
    background-color: var(--primary-light);
    color: white;
    border-color: var(--primary-light);
}

.category-btn.active {
    background-color: var(--primary-color);
    color: white;
}

/* ==================== FAQ内容 ==================== */
.faq-content {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: white;
    margin-bottom: 15px;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item.hidden {
    display: none;
}

.faq-item:hover {
    box-shadow: 0 4px 12px var(--shadow);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px 30px;
    cursor: pointer;
    user-select: none;
}

.faq-question i {
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: transform 0.3s;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-question h3 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-primary);
    flex: 1;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
    padding: 0 30px;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 0 30px 25px 30px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul,
.faq-answer ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.faq-answer li {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.faq-answer strong {
    color: var(--text-primary);
    font-weight: 600;
}

.faq-answer a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}

.faq-answer a:hover {
    border-bottom-color: var(--primary-color);
}

/* ==================== 联系区域 ==================== */
.faq-contact {
    text-align: center;
    margin-top: 4rem;
    padding: 60px 30px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
}

.faq-contact h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.faq-contact p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .faq-header h1 {
        font-size: 2rem;
    }
    
    .faq-categories {
        gap: 10px;
    }
    
    .category-btn {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
    
    .faq-question {
        padding: 20px;
    }
    
    .faq-question h3 {
        font-size: 1.1rem;
    }
    
    .faq-answer {
        padding: 0 20px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 20px 20px 20px;
    }
    
    .faq-contact {
        padding: 40px 20px;
    }
    
    .faq-contact h2 {
        font-size: 1.5rem;
    }
}