* { margin: 0; padding: 0; box-sizing: border-box; }

    body {
      font-family: Roboto, "微軟正黑體", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
      background: #f5f7fa;
      min-height: 100vh;
      color: #47596C;
    }

    /* Header with language selector */
    .header {
      background: #2c3e50;
      padding: 1rem 2rem;
      box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: none;
    }

    .logo {
      font-size: 1.5rem;
      font-weight: 700;
      color: white;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .ai-badge {
      background: #619AEC;
      color: white;
      padding: 0.25rem 0.75rem;
      border-radius: 12px;
      font-size: 0.75rem;
      font-weight: 600;
    }

    .language-selector select {
      padding: 0.375rem 1rem;
      border: 1px solid #d1d5db;
      border-radius: 6px;
      font-size: 0.875rem;
      cursor: pointer;
      background: white;
      color: #374151;
      min-width: 140px;
      appearance: none;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
      background-position: right 0.5rem center;
      background-repeat: no-repeat;
      background-size: 1.5em 1.5em;
      padding-right: 2.5rem;
    }

    .language-selector select:focus {
      outline: none;
      ring: 2px solid #619AEC;
      border-color: #619AEC;
    }

    /* Footer */
    .footer {
      background: #2D395C;
      color: white;
      margin-top: 4rem;
    }

    .footer-content {
      max-width: 1400px;
      margin: 0 auto;
      padding: 0.75rem 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .footer-info {
      display: flex;
      flex-direction: column;
      gap: 0.25rem;
    }

    .company-name {
      font-size: 0.75rem;
      font-weight: 500;
      color: white;
      line-height: 1.5;
    }

    .company-details {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.75rem;
      color: #d1d5db;
      line-height: 1.5;
      margin-top: 0.125rem;
    }

    .company-details span {
      color: #d1d5db;
    }

    .company-details span:nth-child(2) {
      color: #d1d5db;
    }

    .company-details a {
      color: #93c5fd;
      text-decoration: none;
      transition: color 0.2s;
    }

    .company-details a:hover {
      color: white;
    }

    .social-links {
      display: flex;
      align-items: center;
    }

    .social-links a {
      color: #d1d5db;
      padding: 0.375rem;
      transition: color 0.2s;
    }

    .social-links a:hover {
      color: white;
    }

    .social-links svg {
      width: 1.25rem;
      height: 1.25rem;
    }

    @media (max-width: 768px) {
      .footer-content {
        flex-direction: row;
        padding: 0.5rem 1rem;
      }

      .footer-info {
        flex: 1;
      }

      .company-name {
        font-size: 0.7rem;
      }

      .company-details {
        font-size: 0.7rem;
        flex-wrap: wrap;
      }
    }

    /* Tabs System */
    .tabs-shell {
      background: white;
      border-radius: 12px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.08);
      margin-bottom: 1.5rem;
      overflow: hidden;
    }

    .tab-buttons {
      display: flex;
      background: #f8f9fa;
      border-bottom: 1px solid #e9ecef;
      padding: 0;
    }

    .tab-button {
      flex: 1;
      padding: 1rem 1.5rem;
      border: none;
      background: transparent;
      cursor: pointer;
      font-size: 0.95rem;
      font-weight: 500;
      color: #6c757d;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      transition: all 0.2s ease;
      border-bottom: 3px solid transparent;
    }

    .tab-button:hover {
      background: #e9ecef;
      color: #495057;
    }

    .tab-button.active {
      background: white;
      color: #619AEC;
      border-bottom-color: #619AEC;
      font-weight: 600;
    }

    .tab-arrow {
      font-size: 0.75rem;
      transition: transform 0.2s;
    }

    .tab-button.active .tab-arrow {
      transform: rotate(180deg);
    }

    .tab-panels {
      padding: 1rem;
    }

    .tab-panel {
      display: none;
    }

    .tab-panel.active {
      display: block;
    }

    /* Main layout with sidebar */
    .main-layout {
      display: flex;
      max-width: 1400px;
      margin: 2rem auto;
      gap: 2rem;
      padding: 0 2rem;
    }

    /* Sidebar */
    .sidebar {
      width: 280px;
      background: white;
      border-radius: 12px;
      padding: 1.5rem;
      height: fit-content;
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }

    .sidebar h3 {
      margin-bottom: 1rem;
      color: #333;
      font-size: 1.1rem;
    }

    .collapsible-header {
      cursor: pointer;
      user-select: none;
      transition: all 0.3s ease;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .collapsible-header:hover {
      color: #619AEC;
    }

    .collapse-icon {
      display: inline-block;
      transition: transform 0.3s ease;
      font-size: 0.8rem;
    }

    .collapsible-header.collapsed .collapse-icon {
      transform: rotate(-90deg);
    }

    .collapsible-content {
      max-height: 2000px;
      overflow: hidden;
      transition: max-height 0.3s ease, opacity 0.3s ease;
      opacity: 1;
    }

    .collapsible-content.collapsed {
      max-height: 0;
      opacity: 0;
    }

    .sidebar-section {
      padding: 0.75rem 1rem;
      margin: 0.5rem 0;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.2s;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .sidebar-section:hover {
      background: #f0f0f0;
    }

    .sidebar-section.active {
      background: #619AEC;
      color: white;
    }

    .section-count {
      font-size: 0.9rem;
      opacity: 0.7;
    }

    /* Content area */
    .content {
      flex: 1;
      background: white;
      border-radius: 12px;
      padding: 2rem;
      box-shadow: 0 4px 20px rgba(0,0,0,0.1);
      min-height: 600px;
    }

    /* Search box */
    .search-box {
      display: flex;
      gap: 1rem;
      margin-bottom: 1rem;
    }

    .search-input {
      flex: 1;
      padding: 1rem;
      border: 2px solid #619AEC;
      border-radius: 20px;
      font-size: 1rem;
      transition: border-color 0.3s;
      color: #47596C;
    }

    .search-input:focus {
      outline: none;
      border-color: #3A4D73;
      box-shadow: 0 1px 0 0 #619AEC;
    }

    .search-btn {
      padding: 1rem 2rem;
      background: #619AEC;
      color: white;
      border: none;
      border-radius: 20px;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s;
    }

    .search-btn:hover {
      background: #3A4D73;
    }

    /* Intent Detection Panel */
    .intent-panel {
      background: #f8f9fa;
      border: 2px solid #e0e0e0;
      border-radius: 12px;
      padding: 1rem;
      margin-bottom: 1.5rem;
      display: none;
    }

    .intent-panel.show {
      display: block;
      animation: slideIn 0.3s ease;
    }

    @keyframes slideIn {
      from {
        opacity: 0;
        transform: translateY(-10px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .intent-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 0.75rem;
    }

    .intent-title {
      font-weight: 600;
      color: #333;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .intent-badge {
      display: inline-block;
      padding: 0.25rem 0.75rem;
      border-radius: 20px;
      font-size: 0.85rem;
      font-weight: 600;
      background: #619AEC;
      color: white;
    }

    .intent-confidence {
      font-size: 0.9rem;
      color: #666;
    }

    .slot-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-top: 0.5rem;
    }

    .slot-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
      padding: 0.4rem 0.75rem;
      background: white;
      border: 1px solid #ddd;
      border-radius: 8px;
      font-size: 0.85rem;
    }

    .slot-label {
      color: #999;
      font-weight: 600;
    }

    .slot-value {
      color: #333;
    }

    /* Recommendations */
    .recommendations {
      margin-top: 1rem;
      padding-top: 1rem;
      border-top: 1px solid #e0e0e0;
    }

    .recommendations h4 {
      font-size: 0.9rem;
      color: #666;
      margin-bottom: 0.5rem;
    }

    .recommendation-item {
      padding: 0.5rem;
      background: white;
      border-radius: 6px;
      margin-bottom: 0.5rem;
      cursor: pointer;
      transition: background 0.2s;
    }

    .recommendation-item:hover {
      background: #f0f0f0;
    }

    /* Hot FAQs */
    .hot-faqs {
      margin-bottom: 2rem;
    }

    .hot-faqs h2 {
      margin-bottom: 1rem;
      color: #333;
    }

    .hot-faq-item {
      padding: 1rem;
      border-bottom: 1px solid #eee;
      cursor: pointer;
      transition: background 0.2s;
    }

    .hot-faq-item:hover {
      background: #f8f9fa;
    }

    /* Resort Regions */
    .resort-region {
      padding: 0.6rem 1rem;
      margin: 0.4rem 0;
      border-radius: 8px;
      cursor: pointer;
      transition: all 0.2s;
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.9rem;
    }

    .resort-region:hover {
      background: #f0f0f0;
    }

    .resort-region.active {
      background: #619AEC;
      color: white;
    }

    .resort-count {
      font-size: 0.85rem;
      opacity: 0.7;
    }

    /* Resort Card */
    .resort-card {
      background: white;
      border: 2px solid #619AEC;
      border-radius: 12px;
      padding: 1.5rem;
      margin-bottom: 1rem;
      transition: all 0.3s;
    }

    .resort-card:hover {
      border-color: #3A4D73;
      box-shadow: 0 4px 16px rgba(74, 95, 140, 0.15);
      transform: translateY(-2px);
    }

    .resort-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      margin-bottom: 0;
      padding-bottom: 1rem;
      border-bottom: 2px solid #f0f0f0;
    }

    .resort-header.clickable {
      cursor: pointer;
      user-select: none;
    }

    .resort-header.clickable:hover {
      background: rgba(74, 95, 140, 0.05);
      margin: -0.5rem;
      padding: 0.5rem 0.5rem 1.5rem 0.5rem;
      border-radius: 8px;
    }

    .expand-icon {
      display: inline-block;
      margin-right: 0.5rem;
      font-size: 0.9rem;
      color: #619AEC;
      transition: transform 0.3s;
    }

    .resort-name {
      font-size: 1.3rem;
      font-weight: 700;
      color: #2D395C;
      display: flex;
      align-items: center;
    }

    .resort-details {
      margin-top: 1rem;
    }

    .resort-name-en {
      font-size: 0.9rem;
      color: #666;
      margin-top: 0.25rem;
    }

    .resort-region-tag {
      background: #619AEC;
      color: white;
      padding: 0.25rem 0.75rem;
      border-radius: 6px;
      font-size: 0.85rem;
      white-space: nowrap;
    }

    .resort-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1rem;
      margin-bottom: 1rem;
    }

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

    .resort-stat-value {
      font-size: 1.5rem;
      font-weight: 700;
      color: #619AEC;
    }

    .resort-stat-label {
      font-size: 0.85rem;
      color: #666;
      margin-top: 0.25rem;
    }

    .resort-info {
      margin-top: 1rem;
    }

    .resort-info-row {
      display: flex;
      gap: 0.5rem;
      margin: 0.75rem 0;
      font-size: 0.95rem;
    }

    .resort-info-label {
      font-weight: 600;
      color: #333;
      min-width: 80px;
    }

    .resort-info-value {
      color: #666;
      flex: 1;
    }

    .resort-amenities {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-top: 1rem;
    }

    .resort-amenity {
      background: #f0f0f0;
      padding: 0.25rem 0.75rem;
      border-radius: 6px;
      font-size: 0.85rem;
      color: #666;
      transition: all 0.2s ease;
    }

    .resort-amenity.clickable {
      cursor: pointer;
    }

    .resort-amenity.clickable:hover {
      background: #619AEC;
      color: white;
      transform: translateY(-1px);
    }

    .resort-link {
      display: inline-block;
      margin-top: 1rem;
      padding: 0.75rem 1.5rem;
      background: #619AEC;
      color: white;
      text-decoration: none;
      border-radius: 8px;
      font-weight: 600;
      transition: background 0.2s;
    }

    .resort-link:hover {
      background: #3A4D73;
    }

    @media (max-width: 768px) {
      .resort-stats {
        grid-template-columns: repeat(2, 1fr);
      }

      .resort-stat-value {
        font-size: 1.2rem;
      }
    }

    /* FAQ Results */
    .results-header {
      display: flex;
      justify-content: space-between;
      margin-bottom: 1.5rem;
      padding-bottom: 1rem;
      border-bottom: 2px solid #eee;
    }

    .faq-item {
      background: white;
      border: 2px solid #619AEC;
      border-radius: 12px;
      padding: 1.5rem;
      margin-bottom: 1rem;
      cursor: pointer;
      transition: all 0.3s;
      overflow: hidden;
    }

    .faq-item:hover {
      border-color: #3A4D73;
      box-shadow: 0 4px 16px rgba(97, 154, 236, 0.15);
      transform: translateY(-2px);
    }

    .faq-item.expanded {
      border-color: #3A4D73;
      background: #eaf1fc;
    }

    .faq-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
    }

    .faq-question {
      font-size: 1.1rem;
      font-weight: 600;
      color: #333;
      margin: 0;
      flex: 1;
    }

    .faq-toggle-icon {
      font-size: 1.5rem;
      color: #619AEC;
      transition: transform 0.3s;
      flex-shrink: 0;
    }

    .faq-item.expanded .faq-toggle-icon {
      transform: rotate(180deg);
    }

    .faq-answer {
      color: #666;
      line-height: 1.6;
      margin-top: 1rem;
      padding-top: 1rem;
      border-top: 1px solid #e0e0e0;
      max-height: 0;
      overflow: hidden;
      opacity: 0;
      transition: max-height 0.4s ease, opacity 0.3s ease, margin-top 0.3s ease, padding-top 0.3s ease;
    }

    .faq-item.expanded .faq-answer {
      max-height: 1000px;
      opacity: 1;
    }

    .faq-answer .faq-postscript {
      margin-top: 0.75rem;
      padding-top: 0.75rem;
      border-top: 1px dashed rgba(148, 163, 184, 0.4);
      font-size: 0.95rem;
      color: #64748b;
    }

    .confidence-badge {
      display: inline-block;
      padding: 4px 12px;
      border-radius: 12px;
      font-size: 0.85rem;
      font-weight: 600;
      margin-left: 0.5rem;
    }

    .confidence-high { background: #d4edda; color: #155724; }
    .confidence-medium { background: #fff3cd; color: #856404; }
    .confidence-low { background: #f8d7da; color: #721c24; }

    .faq-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-top: 0.5rem;
    }

    .faq-tag {
      display: inline-block;
      padding: 0.25rem 0.75rem;
      background: #e8eaf6;
      color: #619AEC;
      border-radius: 12px;
      font-size: 0.8rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
      border: 1px solid transparent;
    }

    .faq-tag:hover {
      background: #619AEC;
      color: white;
      transform: translateY(-1px);
      box-shadow: 0 2px 4px rgba(74, 95, 140, 0.3);
    }

    /* FAQ Links Styling */
    .faq-link {
      color: #2D5AA0;
      text-decoration: none;
      font-weight: 500;
      border-bottom: 1px solid #2D5AA0;
      transition: all 0.2s ease;
      word-break: break-word;
    }

    .faq-link:hover {
      color: #1a3a66;
      border-bottom-color: #1a3a66;
      background-color: rgba(45, 90, 160, 0.05);
    }

    .faq-link-email::before {
      content: '✉️ ';
      margin-right: 2px;
    }

    .faq-link-external::after {
      content: ' 🔗';
      margin-left: 2px;
      font-size: 0.9em;
    }

    .loading { text-align: center; padding: 3rem; color: #999; }
    .hidden { display: none; }

    /* AI Chat Widget - Floating bottom-right */
    .ai-chat-widget {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      z-index: 1000;
    }

    .ai-chat-button {
      width: 60px;
      height: 60px;
      border-radius: 50%;
      background: #619AEC;
      color: white;
      border: none;
      font-size: 1.8rem;
      cursor: pointer;
      box-shadow: 0 4px 20px rgba(97, 154, 236, 0.4);
      transition: all 0.3s;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .ai-chat-button:hover {
      transform: scale(1.1);
      box-shadow: 0 6px 30px rgba(97, 154, 236, 0.6);
    }

    .ai-chat-button.active {
      background: #f44336;
    }

    .ai-chat-window {
      position: absolute;
      bottom: 80px;
      right: 0;
      width: 380px;
      height: 500px;
      background: white;
      border-radius: 16px;
      box-shadow: 0 8px 40px rgba(0,0,0,0.2);
      display: none;
      flex-direction: column;
      overflow: hidden;
    }

    .ai-chat-window.open {
      display: flex;
    }

    .ai-chat-header {
      background: #619AEC;
      color: white;
      padding: 1rem;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }

    .ai-chat-messages {
      flex: 1;
      overflow-y: auto;
      padding: 1rem;
      background: #f5f5f5;
    }

    .ai-chat-message {
      margin-bottom: 1rem;
      display: flex;
      gap: 0.5rem;
    }

    .ai-chat-message.user {
      flex-direction: row-reverse;
    }

    .ai-chat-message .avatar {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.2rem;
      flex-shrink: 0;
    }

    .ai-chat-message.assistant .avatar {
      background: #619AEC;
    }

    .ai-chat-message.user .avatar {
      background: #e0e0e0;
    }

    .ai-chat-message .bubble {
      padding: 0.75rem 1rem;
      border-radius: 12px;
      max-width: 70%;
      word-wrap: break-word;
    }

    .ai-chat-message.assistant .bubble {
      background: white;
      color: #333;
    }

    .ai-chat-message.user .bubble {
      background: #619AEC;
      color: white;
    }

    .ai-chat-input-area {
      padding: 1rem;
      background: white;
      border-top: 1px solid #e0e0e0;
      display: flex;
      gap: 0.5rem;
    }

    .ai-chat-input {
      flex: 1;
      padding: 0.75rem;
      border: 2px solid #619AEC;
      border-radius: 20px;
      font-size: 0.95rem;
      outline: none;
      color: #47596C;
    }

    .ai-chat-input:focus {
      border-color: #3A4D73;
      box-shadow: 0 1px 0 0 #619AEC;
    }

    .ai-chat-send {
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: #619AEC;
      color: white;
      border: none;
      cursor: pointer;
      font-size: 1.2rem;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .ai-chat-send:hover {
      transform: scale(1.05);
      background: #3A4D73;
    }

    .ai-chat-send:disabled {
      background: #ccc;
      cursor: not-allowed;
      transform: none;
    }

    /* Results Modal */
    .modal-overlay {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(0, 0, 0, 0.5);
      z-index: 100;
      animation: fadeIn 0.3s ease;
    }

    .modal-overlay.show {
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .modal-content {
      background: white;
      border-radius: 12px;
      padding: 2rem;
      max-height: 90vh;
      overflow-y: auto;
      max-width: 800px;
      width: 90%;
      position: relative;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
      animation: slideUp 0.3s ease;
    }

    .modal-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 1.5rem;
      padding-bottom: 1rem;
      border-bottom: 2px solid #619AEC;
    }

    .modal-title {
      font-size: 1.5rem;
      font-weight: 700;
      color: #619AEC;
      margin: 0;
    }

    .modal-close {
      background: none;
      border: none;
      font-size: 1.5rem;
      color: #999;
      cursor: pointer;
      padding: 0;
      width: 40px;
      height: 40px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      transition: background 0.2s;
    }

    .modal-close:hover {
      background: #f0f0f0;
      color: #619AEC;
    }

    @keyframes fadeIn {
      from { opacity: 0; }
      to { opacity: 1; }
    }

    @keyframes slideUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .main-layout { flex-direction: column; }
      .sidebar { width: 100%; }
    }

    @media (max-width: 768px) {
      /* Header responsive adjustments */
      .header {
        padding: 0.75rem 1rem;
        gap: 0.5rem;
      }

      .logo {
        font-size: 1.2rem;
        gap: 0.3rem;
      }

      .logo img {
        height: 2rem !important;
      }

      .language-selector select {
        padding: 0.375rem 0.75rem;
        font-size: 0.8rem;
        min-width: 120px;
        padding-right: 2rem;
      }

      /* Search box adjustments */
      .search-box {
        gap: 0.5rem;
        margin-bottom: 0.75rem;
      }

      .search-input {
        padding: 0.75rem;
        font-size: 0.9rem;
      }

      .search-input::placeholder {
        font-size: 0.85rem;
      }

      .search-btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
        white-space: nowrap;
      }

      /* Modal adjustments */
      .modal-content {
        width: 95%;
        padding: 1.5rem;
        border-radius: 8px;
      }

      .modal-title {
        font-size: 1.2rem;
      }
    }

    /* ============================================
       反饋系統 CSS
       ============================================ */

    /* 反饋區域 */
    .feedback-section {
      margin-top: 1rem;
      padding-top: 1rem;
      border-top: 1px solid #e0e0e0;
      display: flex;
      flex-direction: column;
      gap: 0.75rem;
      align-items: flex-start;
    }

    .feedback-label {
      font-size: 0.875rem;
      color: #666;
      font-weight: 500;
    }

    .feedback-buttons {
      display: flex;
      gap: 0.5rem;
      width: 100%;
    }

    .btn-helpful,
    .btn-not-helpful {
      flex: 1;
      padding: 0.5rem 0.75rem;
      border: 1px solid #d1d5db;
      border-radius: 6px;
      background: white;
      color: #374151;
      font-size: 0.875rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-helpful:hover {
      background: #dcfce7;
      border-color: #16a34a;
      color: #15803d;
    }

    .btn-not-helpful:hover {
      background: #fee2e2;
      border-color: #dc2626;
      color: #b91c1c;
    }

    /* 反饋彈窗 */
    .feedback-modal {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.5);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 1000;
    }

    .feedback-modal-content {
      background: white;
      border-radius: 12px;
      width: 90%;
      max-width: 400px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    }

    .feedback-modal-header {
      padding: 1.5rem;
      border-bottom: 1px solid #e0e0e0;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }

    .feedback-modal-header h3 {
      margin: 0;
      font-size: 1.125rem;
    }

    .feedback-modal-close {
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: #999;
      padding: 0;
      width: 2rem;
      height: 2rem;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .feedback-modal-close:hover {
      color: #333;
    }

    .feedback-modal-body {
      padding: 1.5rem;
    }

    .feedback-prompt {
      font-size: 0.95rem;
      color: #374151;
      margin-bottom: 1rem;
      font-weight: 500;
    }

    .reasons-section {
      margin-bottom: 1rem;
    }

    .reasons-title {
      font-size: 0.875rem;
      font-weight: 600;
      margin-bottom: 0.75rem;
      color: #374151;
    }

    .reasons-list {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .reasons-list label {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      cursor: pointer;
      font-size: 0.875rem;
    }

    .reasons-list input[type="radio"] {
      cursor: pointer;
    }

    .comment-section {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }

    .comment-section label {
      font-size: 0.875rem;
      font-weight: 500;
      color: #374151;
    }

    .comment-section textarea {
      padding: 0.75rem;
      border: 1px solid #d1d5db;
      border-radius: 6px;
      font-family: inherit;
      font-size: 0.875rem;
      resize: vertical;
    }

    .comment-section textarea:focus {
      outline: none;
      border-color: #2563eb;
      box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
    }

    .feedback-modal-footer {
      padding: 1rem 1.5rem;
      border-top: 1px solid #e0e0e0;
      display: flex;
      gap: 0.75rem;
      justify-content: flex-end;
    }

    .btn-cancel,
    .btn-submit {
      padding: 0.5rem 1rem;
      border-radius: 6px;
      border: 1px solid #d1d5db;
      font-size: 0.875rem;
      font-weight: 500;
      cursor: pointer;
      transition: all 0.2s ease;
    }

    .btn-cancel {
      background: white;
      color: #374151;
    }

    .btn-cancel:hover {
      background: #f9fafb;
    }

    .btn-submit {
      background: #2563eb;
      border-color: #2563eb;
      color: white;
    }

    .btn-submit:hover {
      background: #1d4ed8;
    }

    .btn-submit:disabled {
      background: #9ca3af;
      border-color: #9ca3af;
      cursor: not-allowed;
    }

    /* 提交成功提示 */
    .feedback-success {
      position: fixed;
      bottom: 2rem;
      right: 2rem;
      background: #10b981;
      color: white;
      padding: 1rem 1.5rem;
      border-radius: 8px;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
      animation: slideUp 0.3s ease-out;
      z-index: 2000;
    }

    @keyframes slideUp {
      from {
        opacity: 0;
        transform: translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    /* 響應式設計 */
    @media (max-width: 768px) {
      .feedback-buttons {
        flex-direction: column;
      }

      .feedback-modal-content {
        width: 85%;
      }

      .feedback-success {
        bottom: 1rem;
        right: 1rem;
        left: 1rem;
        max-width: calc(100% - 2rem);
      }

      .feedback-modal-header {
        padding: 1rem 1.5rem;
      }

      .feedback-modal-body {
        padding: 1rem 1.5rem;
      }

      .feedback-modal-footer {
        padding: 1rem 1.5rem;
      }
    }