/* FAQ页面样式 */

.page-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    padding: 80px 0;
    color: white;
    text-align: center;
}

.page-header h1 {
    font-size: 42px;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 35px;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    background: white;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.search-box input {
    flex: 1;
    padding: 18px 30px;
    border: none;
    font-size: 16px;
    outline: none;
}

.search-box button {
    padding: 18px 30px;
    border: none;
    background-color: var(--primary-blue);
    color: white;
    font-size: 20px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-box button:hover {
    background-color: var(--dark-blue);
}

.faq-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.faq-categories {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 12px 28px;
    border: 2px solid var(--primary-blue);
    background-color: white;
    color: var(--primary-blue);
    border-radius: 25px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
}

.category-btn:hover {
    background-color: var(--light-blue);
}

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

.faq-group {
    background: white;
    border-radius: 15px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

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

.faq-group-title {
    font-size: 28px;
    color: var(--primary-blue);
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--primary-blue);
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.faq-question span:first-child {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    flex: 1;
}

.toggle-icon {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary-blue);
    font-weight: bold;
    transition: transform 0.3s;
}

.faq-item.active .toggle-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--text-gray);
    line-height: 1.8;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding-top: 20px;
}

.faq-answer p {
    margin-bottom: 15px;
}

.faq-answer ul,
.faq-answer ol {
    margin-left: 25px;
    margin-bottom: 15px;
}

.faq-answer li {
    margin-bottom: 8px;
}

.contact-support {
    background: white;
    border-radius: 15px;
    padding: 50px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-top: 40px;
}

.contact-support h3 {
    font-size: 26px;
    color: var(--primary-blue);
    margin-bottom: 15px;
}

.contact-support p {
    font-size: 16px;
    color: var(--text-gray);
    margin-bottom: 35px;
}

.support-options {
    display: flex;
    justify-content: center;
    gap: 25px;
    flex-wrap: wrap;
}

.support-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 25px 35px;
    background-color: var(--light-blue);
    border-radius: 15px;
    text-decoration: none;
    color: var(--primary-blue);
    transition: all 0.3s;
    min-width: 150px;
}

.support-btn:hover {
    background-color: var(--primary-blue);
    color: white;
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 82, 204, 0.3);
}

.support-btn .icon {
    font-size: 32px;
}

.support-btn span:last-child {
    font-size: 15px;
    font-weight: 600;
}

@media (max-width: 768px) {
    .page-header {
        padding: 50px 0;
    }

    .page-header h1 {
        font-size: 30px;
    }

    .search-box {
        border-radius: 25px;
    }

    .search-box input,
    .search-box button {
        padding: 12px 20px;
        font-size: 14px;
    }

    .faq-categories {
        gap: 10px;
    }

    .category-btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .faq-group {
        padding: 25px 20px;
    }

    .faq-group-title {
        font-size: 22px;
    }

    .faq-question span:first-child {
        font-size: 16px;
    }

    .contact-support {
        padding: 35px 20px;
    }

    .support-options {
        flex-direction: column;
        align-items: stretch;
    }

    .support-btn {
        width: 100%;
    }
}