/* 帮助中心页面样式 */

.page-hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.03), rgba(8, 145, 178, 0.05));
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.help-search {
    display: flex;
    max-width: 500px;
    margin: 30px auto;
    gap: 12px;
    background: white;
    padding: 8px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.search-input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-lg);
    font-size: 16px;
    background: transparent;
    outline: none;
}

.search-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.search-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.popular-questions {
    margin-top: 20px;
    text-align: center;
}

.popular-title {
    color: var(--text-secondary);
    font-size: 14px;
    margin-right: 10px;
}

.question-link {
    display: inline-block;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    padding: 6px 12px;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-size: 13px;
    margin: 0 4px 8px;
    transition: var(--transition);
}

.question-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

.help-categories {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

.help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.help-category {
    background: white;
    padding: 30px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
    position: relative;
}

.help-category:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.help-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.help-icon {
    font-size: 40px;
    filter: drop-shadow(0 2px 4px rgba(37, 99, 235, 0.2));
}

.help-badge {
    background: var(--gradient-primary);
    color: white;
    padding: 4px 10px;
    border-radius: var(--radius-lg);
    font-size: 12px;
    font-weight: 600;
}

.help-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.help-desc {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
    font-size: 14px;
}

.help-links {
    margin-bottom: 20px;
}

.help-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    margin-bottom: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.help-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(5px);
    border-left-color: var(--accent-color);
}

.link-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.link-text {
    font-size: 14px;
    font-weight: 500;
}

.help-stats {
    display: flex;
    justify-content: space-between;
    padding-top: 15px;
    border-top: 1px solid rgba(37, 99, 235, 0.1);
}

.stat-item {
    font-size: 12px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

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

.faq-content {
    max-width: 800px;
    margin: 0 auto;
}

.faq-title {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.faq-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.faq-list {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.faq-item {
    border-bottom: 1px solid rgba(37, 99, 235, 0.1);
}

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

.faq-question {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.question-text {
    flex: 1;
    font-weight: 600;
    color: var(--text-primary);
}

.expand-icon {
    font-size: 24px;
    font-weight: 300;
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-answer {
    padding: 0 24px 20px 60px;
    color: var(--text-secondary);
    line-height: 1.7;
    display: none;
}

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

.faq-item.active .faq-answer {
    display: block;
}

.help-contact {
    padding: 80px 0;
}

.contact-banner {
    background: var(--gradient-primary);
    color: white;
    padding: 50px;
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-xl);
}

.contact-content h3 {
    font-size: 28px;
    margin-bottom: 10px;
}

.contact-content p {
    opacity: 0.9;
    margin-bottom: 30px;
    font-size: 16px;
}

.contact-options {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.contact-option {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 14px 24px;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

.contact-option:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.option-icon {
    font-size: 18px;
}

.option-text {
    font-size: 14px;
}

@media (max-width: 768px) {
    .help-grid {
        grid-template-columns: 1fr;
    }
    
    .help-search {
        flex-direction: column;
        max-width: 100%;
        margin: 20px;
    }
    
    .popular-questions {
        text-align: left;
        padding: 0 20px;
    }
    
    .contact-options {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-option {
        width: 200px;
        justify-content: center;
    }
    
    .faq-answer {
        padding: 0 20px 20px 50px;
    }
}