/* 常見問題頁面樣式 */

/* Hero Section */
.hero-faq {
    background: var(--primary-gradient);
    color: white;
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero-faq::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    color: white;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.6;
    color: white;
}

/* Search Box */
.search-box {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

.search-input {
    width: 100%;
    padding: 16px 60px 16px 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 12px;
    font-size: 16px;
    background: rgba(255,255,255,0.4);
    color: #333;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.search-input::placeholder {
    color: rgba(51, 51, 51, 0.7);
}

.search-input:focus {
    outline: none;
    border-color: rgba(255,255,255,0.6);
    background: rgba(255,255,255,0.5);
    box-shadow: 0 0 0 3px rgba(255,255,255,0.2);
}

.search-input:focus {
    outline: none;
    border-color: rgba(255,255,255,0.5);
    background: rgba(255,255,255,0.15);
    box-shadow: 0 0 0 3px rgba(255,255,255,0.1);
}

.search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 8px;
    width: 44px;
    height: 44px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-50%) scale(1.05);
}

.hero-stats {
    display: flex;
    gap: 60px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    display: block;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
}

/* Search Section */
.search-section {
    background: white;
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.search-container {
    max-width: 600px;
    margin: 0 auto;
}

.search-box {
    position: relative;
    margin-bottom: 20px;
}

.search-input {
    width: 100%;
    padding: 16px 20px;
    padding-left: 50px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: white;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 18px;
}

.search-results {
    margin-top: 20px;
    text-align: center;
    color: var(--text-secondary);
}

/* Breadcrumb */
.breadcrumb-section {
    background: white;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb-modern {
    background: none;
    padding: 0;
    margin: 0;
    font-size: 14px;
}

.breadcrumb-modern .breadcrumb-item {
    color: var(--text-secondary);
}

.breadcrumb-modern .breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: 500;
}

.breadcrumb-modern .breadcrumb-item+.breadcrumb-item::before {
    content: "/";
    color: var(--text-muted);
}

/* FAQ Categories Section */
.faq-categories-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.faq-categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.category-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

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

.category-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 1.5rem;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
}

.category-card:hover .category-icon,
.category-card.active .category-icon {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
}

.category-card:hover .category-icon {
    transform: scale(1.1);
}

.category-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.category-card:hover h3,
.category-card.active h3 {
    color: white;
}

.category-count {
    background: var(--bg-primary);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.category-card:hover .category-count,
.category-card.active .category-count {
    background: rgba(255,255,255,0.2);
    color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.category-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-card:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

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

.category-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--primary-color);
}

.category-card:hover .category-icon,
.category-card.active .category-icon {
    color: white;
}

.category-name {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.category-count {
    font-size: 14px;
    opacity: 0.8;
}

/* FAQ List Section */
.faq-list-section {
    padding: 80px 0;
    background: white;
}

.faq-filters {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-primary);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.filter-group label {
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
}

.filter-group select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: white;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.btn-expand-all,
.btn-collapse-all {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-expand-all:hover,
.btn-collapse-all:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--bg-primary);
}

.filter-btn {
    padding: 8px 16px;
    border: 2px solid var(--border-color);
    border-radius: 20px;
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

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

.category-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color);
}

.faq-items {
    display: grid;
    gap: 16px;
}

.faq-item {
    background: white;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.faq-item:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.faq-item {
    background: var(--bg-primary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    transition: all 0.3s ease;
}

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

.faq-question h4 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    flex: 1;
    padding-right: 20px;
}

.faq-question i {
    color: var(--primary-color);
    transition: transform 0.3s ease;
    font-size: 16px;
    flex-shrink: 0;
}

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

.faq-answer {
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background: var(--bg-primary);
}

.faq-item.active .faq-answer {
    padding: 20px 24px;
    max-height: 500px;
}

.faq-answer p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-answer ul {
    margin: 16px 0;
    padding-left: 20px;
}

.faq-answer li {
    margin-bottom: 8px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Support Section */
.contact-support-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.support-options {
    display: flex;
    justify-content: center;
    margin-top: 40px;
}

.support-option {
    max-width: 400px;
    width: 100%;
    background: white;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.support-option:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.support-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 1.5rem;
}

.support-option h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.support-option p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.btn-support {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--primary-gradient);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-support:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    color: white;
    text-decoration: none;
}

.support-card {
    background: white;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.support-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.support-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    font-size: 2rem;
}

.support-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.support-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.support-contact {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
}

.support-contact:hover {
    text-decoration: underline;
}

/* Feedback Section */
.feedback-section {
    padding: 80px 0;
    background: white;
}

.feedback-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
}

.btn-feedback {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: white;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn-feedback-yes:hover,
.btn-feedback-yes.active {
    border-color: var(--success-color);
    color: var(--success-color);
    background: rgba(var(--success-rgb), 0.05);
}

.btn-feedback-no:hover,
.btn-feedback-no.active {
    border-color: var(--danger-color);
    color: var(--danger-color);
    background: rgba(var(--danger-rgb), 0.05);
}

.feedback-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid var(--border-color);
}

.feedback-form h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    text-align: center;
}

.feedback-form textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    resize: vertical;
    min-height: 120px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.feedback-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.btn-submit-feedback {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0 auto;
}

.btn-submit-feedback:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.feedback-form-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid var(--border-color);
}

.feedback-form {
    margin-top: 30px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.form-control.error {
    border-color: var(--danger-color);
}

.error-message {
    color: var(--danger-color);
    font-size: 14px;
    margin-top: 4px;
    display: none;
}

.form-submit {
    text-align: center;
    margin-top: 30px;
}

.btn-submit {
    background: var(--primary-gradient);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        gap: 30px;
        flex-wrap: wrap;
    }
    
    .faq-categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .faq-filters {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .filter-group {
        justify-content: center;
    }
    
    .feedback-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .support-options {
        padding: 0 20px;
    }
    
    .support-option {
        max-width: 100%;
    }
    
    .feedback-form-container {
        padding: 20px;
        margin: 0 20px;
    }
    
    .faq-filters {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .faq-categories-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-question {
        padding: 16px 20px;
    }
    
    .faq-question h3 {
        font-size: 1rem;
    }
    
    .faq-answer {
        padding: 0 20px;
    }
    
    .faq-item.active .faq-answer {
        padding: 16px 20px;
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Success/Error Messages */
.alert {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid;
}

.alert-success {
    background: rgba(var(--success-rgb), 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-error {
    background: rgba(var(--danger-rgb), 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-info {
    background: rgba(var(--info-rgb), 0.1);
    border-color: var(--info-color);
    color: var(--info-color);
}