/* FAQ页面样式 */

.page-header {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    padding: 150px 0 80px;
    text-align: center;
    color: white;
    margin-top: 0;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.page-header p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
}

.faq-section {
    padding: 80px 0;
    background: #0f172a;
}

/* 搜索框 */
.faq-search {
    position: relative;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.faq-search input {
    width: 100%;
    padding: 1rem 3rem 1rem 1.5rem;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 50px;
    color: #f1f5f9;
    font-size: 1rem;
    transition: all 0.3s;
}

.faq-search input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.faq-search i {
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: #94a3b8;
    font-size: 1.25rem;
}

/* 分类按钮 */
.faq-categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.category-btn {
    padding: 0.75rem 1.5rem;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 50px;
    color: #cbd5e1;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.category-btn:hover,
.category-btn.active {
    background: #667eea;
    border-color: #667eea;
    color: white;
}

/* FAQ列表 */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(30, 41, 59, 0.4);
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: rgba(102, 126, 234, 0.3);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.faq-question h3 {
    color: #f1f5f9;
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.faq-question i {
    color: #667eea;
    font-size: 1.25rem;
    transition: transform 0.3s;
    flex-shrink: 0;
}

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 2rem 1.5rem 2rem;
    color: #94a3b8;
    line-height: 1.8;
    margin: 0;
}

/* CTA区域 */
.faq-cta {
    max-width: 800px;
    margin: 4rem auto 0;
    text-align: center;
    padding: 3rem;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 16px;
}

.faq-cta h2 {
    color: #f1f5f9;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.faq-cta p {
    color: #94a3b8;
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .page-header {
        padding: 120px 20px 60px;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .page-header p {
        font-size: 1rem;
    }
    
    .faq-search {
        margin-bottom: 2rem;
    }

    .faq-categories {
        gap: 0.5rem;
    }

    .category-btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }

    .faq-question {
        padding: 1rem 1.5rem;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .faq-answer p {
        padding: 0 1.5rem 1rem 1.5rem;
    }

    .faq-cta {
        padding: 2rem 1.5rem;
    }

    .faq-cta h2 {
        font-size: 1.5rem;
    }
}