.faq-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #fafafa 0%, #fff 100%);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
    margin: 80px 0;
}

.faq-section .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.faq-section .section-title {
    text-align: center;
    margin-bottom: 60px;
    color: #333;
    font-size: 3rem;
    font-weight: 800;
    position: relative;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #333 0%, #666 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.faq-section .section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #f4821f, #ff9a4a);
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(244, 130, 31, 0.3);
}

.faq-section .section-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.2rem;
    margin-top: -40px;
    margin-bottom: 60px;
    line-height: 2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.faq-category {
    margin-bottom: 60px;
}

.faq-category-title {
    font-size: 2rem;
    color: #333;
    margin-bottom: 30px;
    padding-left: 20px;
    border-left: 5px solid #f4821f;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 25px;
}

.faq-item {
    background: linear-gradient(135deg, #fff 0%, #f9f9f9 100%);
    border: 2px solid transparent;
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
}

.faq-item:hover {
    border-color: rgba(244, 130, 31, 0.3);
    box-shadow: 0 8px 30px rgba(244, 130, 31, 0.15);
    transform: translateY(-3px);
}

.faq-question {
    padding: 30px 70px 30px 35px;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #fff 0%, #fafafa 100%);
}

.faq-question h3,
.faq-question h4 {
    margin: 0;
    font-size: 1.3rem;
    color: #333;
    font-weight: 600;
    transition: all 0.3s ease;
    padding-right: 40px;
    line-height: 1.6;
}

.faq-question::after {
    content: '';
    position: absolute;
    right: 35px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    border-right: 3px solid #f4821f;
    border-bottom: 3px solid #f4821f;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    opacity: 0.7;
}

.faq-item:hover .faq-question::after {
    opacity: 1;
    transform: translateY(-50%) rotate(45deg) scale(1.1);
}

.faq-item.active {
    border-color: rgba(244, 130, 31, 0.5);
    box-shadow: 0 10px 40px rgba(244, 130, 31, 0.2);
    transform: translateY(-5px);
}

.faq-item.active .faq-question::after {
    transform: translateY(-50%) rotate(-135deg) scale(1.2);
    opacity: 1;
}

.faq-answer {
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    padding: 0 35px;
    max-height: 0;
    opacity: 0;
    background: #fff;
}

.faq-item.active .faq-answer {
    max-height: 1200px;
    opacity: 1;
    padding: 0 35px 30px;
}

.faq-answer p {
    margin: 0 0 20px;
    color: #666;
    line-height: 1.8;
    font-size: 1.05rem;
    font-weight: 400;
}

.faq-answer ul {
    margin: 20px 0;
    padding-left: 25px;
}

.faq-answer li {
    margin: 12px 0;
    color: #666;
    line-height: 1.6;
    font-size: 1.05rem;
    position: relative;
    padding-left: 10px;
}

.faq-answer li::before {
    content: '▶';
    position: absolute;
    left: -25px;
    top: 0;
    color: #f4821f;
    font-size: 0.8rem;
}

.faq-item.active .faq-question h3,
.faq-item.active .faq-question h4 {
    color: #f4821f;
    font-weight: 700;
}

.faq-answer strong {
    color: #333;
    font-weight: 700;
}

.faq-contact-cta {
    text-align: center;
    margin-top: 80px;
    padding: 60px 40px;
    background: linear-gradient(135deg, #2d4b8e 0%, #1a2e5a 100%);
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(45, 75, 142, 0.2);
}

.faq-contact-cta h3 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.faq-contact-cta p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.faq-contact-cta .cooperation-button {
    display: inline-block;
    padding: 15px 50px;
    background: #f4821f;
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(244, 130, 31, 0.3);
}

.faq-contact-cta .cooperation-button:hover {
    background: #e67516;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(244, 130, 31, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .faq-section {
        padding: 60px 0;
    }

    .faq-section .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }

    .faq-section .section-subtitle {
        font-size: 1rem;
        margin-top: -30px;
        margin-bottom: 40px;
    }

    .faq-category {
        margin-bottom: 40px;
    }

    .faq-category-title {
        font-size: 1.5rem;
        margin-bottom: 20px;
        padding-left: 15px;
    }

    .faq-question {
        padding: 20px 50px 20px 20px;
    }

    .faq-question h3,
    .faq-question h4 {
        font-size: 1.1rem;
    }

    .faq-question::after {
        right: 20px;
        width: 8px;
        height: 8px;
    }

    .faq-item.active .faq-answer {
        padding: 0 20px 20px;
    }

    .faq-answer p {
        font-size: 0.95rem;
    }

    .faq-answer li {
        font-size: 0.95rem;
    }

    .faq-contact-cta {
        margin-top: 50px;
        padding: 40px 20px;
    }

    .faq-contact-cta h3 {
        font-size: 1.6rem;
    }

    .faq-contact-cta p {
        font-size: 1rem;
    }

    .faq-contact-cta .cooperation-button {
        padding: 12px 40px;
        font-size: 1rem;
    }
}