.keyword-detail-page {
  max-width: 1200px;
  margin: 0 auto;
}

.breadcrumb {
  background: transparent;
  padding: 0.5rem 0;
  margin: 0;
  font-size: 0.875rem;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "›";
  font-weight: 400;
  color: var(--md-sys-color-outline);
  font-size: 1.1rem;
}

.breadcrumb-item a {
  color: var(--md-sys-color-primary);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s var(--md-sys-motion-easing-standard);
}

.breadcrumb-item a:hover {
  color: var(--md-sys-color-primary);
  opacity: 0.8;
}

.breadcrumb-item.active {
  color: var(--md-sys-color-on-surface-variant);
}

.meta-info {
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
}

.meta-info .badge {
  background-color: var(--md-sys-color-primary-container) !important;
  color: var(--md-sys-color-on-primary-container) !important;
  font-weight: 600;
  font-size: 0.875rem;
}

.keyword-main-card {
  background: var(--md-sys-color-surface-container-low);
  border: 1px solid var(--md-sys-color-outline-variant) !important;
  border-radius: var(--md-sys-shape-corner-extra-large) !important;
  box-shadow: var(--md-sys-elevation-1);
  transition: box-shadow 0.3s var(--md-sys-motion-easing-standard);
}

.keyword-main-card:hover {
  box-shadow: var(--md-sys-elevation-2);
}

.keyword-main-card .card-header {
  background: linear-gradient(135deg, 
    var(--md-sys-color-primary) 0%, 
    var(--md-sys-color-secondary) 100%);
  border-bottom: none;
  padding: 40px 32px;
}

.keyword-main-card h1 {
  font-size: 3rem;
  font-weight: 700;
  color: var(--md-sys-color-on-primary);
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.keyword-main-card .card-header .badge {
  background-color: rgba(255, 255, 255, 0.15) !important;
  color: var(--md-sys-color-on-primary) !important;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
  font-weight: 500;
}

.keyword-main-card .card-header a.badge:hover {
  background-color: rgba(255, 255, 255, 0.3) !important;
  transform: translateY(-2px);
}

.keyword-main-card .card-body {
  padding: 40px 32px;
  background: var(--md-sys-color-surface);
}

.keyword-description {
  max-width: 900px;
}

.keyword-description .markdown-body,
.markdown-body {
  font-size: 1.375rem !important;
  line-height: 1.8 !important;
  color: var(--md-sys-color-on-surface);
}

.keyword-description .markdown-body p,
.markdown-body p {
  margin-bottom: 1.25rem;
  text-align: justify;
  font-size: 1.375rem !important;
}

.markdown-body h2,
.markdown-body h3 {
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.markdown-body h2 {
  font-size: 1.75rem !important;
  border-bottom: 2px solid var(--md-sys-color-outline-variant);
  padding-bottom: 0.5rem;
}

.markdown-body h3 {
  font-size: 1.5rem !important;
}

.markdown-body ul,
.markdown-body ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  font-size: 1.375rem !important;
}

.markdown-body li {
  margin-bottom: 0.5rem;
  font-size: 1.375rem !important;
}

.markdown-body code {
  background-color: var(--md-sys-color-surface-container-highest);
  color: var(--md-sys-color-primary);
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

.markdown-body pre {
  background-color: var(--md-sys-color-surface-container-highest);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

.markdown-body pre code {
  background: none;
  padding: 0;
}

.markdown-body blockquote {
  border-left: 4px solid var(--md-sys-color-primary);
  padding-left: 1rem;
  margin: 1.5rem 0;
  color: var(--md-sys-color-on-surface-variant);
  font-style: italic;
}

.videos-section {
  margin-top: 48px;
}

.videos-section h2 {
  font-size: 1.75rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 24px;
}

.video-card {
  background-color: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant) !important;
  border-radius: var(--md-sys-shape-corner-large) !important;
  transition: all 0.3s var(--md-sys-motion-easing-emphasized);
  overflow: hidden;
}

.video-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--md-sys-elevation-2);
}

.video-card .card-body h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
}

.video-card .btn-danger {
  background-color: #ff0000;
  border: none;
  font-weight: 600;
}

.video-card .btn-danger:hover {
  background-color: #cc0000;
}

.related-keywords-section {
  margin-top: 48px;
}

.related-keywords-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  margin-bottom: 24px;
}

.related-keywords-section .card {
  background-color: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant) !important;
  border-radius: var(--md-sys-shape-corner-medium) !important;
  transition: all 0.3s var(--md-sys-motion-easing-emphasized);
  position: relative;
  overflow: hidden;
  min-height: 80px;
  display: flex;
  align-items: center;
}

.related-keywords-section .card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--md-sys-color-on-surface);
  opacity: 0;
  transition: opacity 0.2s var(--md-sys-motion-easing-standard);
  z-index: 1;
}

.related-keywords-section .card:hover::before {
  opacity: 0.08;
}

.related-keywords-section .card::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background-color: var(--md-sys-color-on-surface);
  width: 100px;
  height: 100px;
  margin-top: -50px;
  margin-left: -50px;
  top: var(--ripple-y, 50%);
  left: var(--ripple-x, 50%);
  opacity: 0;
  pointer-events: none;
  z-index: 2;
}

.related-keywords-section .card.ripple-active::after {
  animation: ripple 0.5s var(--md-sys-motion-easing-emphasized-decelerate);
}

.related-keywords-section .card:hover {
  transform: translateY(-4px);
  box-shadow: var(--md-sys-elevation-2);
  border-color: var(--md-sys-color-primary) !important;
}

.related-keywords-section .card-body {
  position: relative;
  z-index: 3;
  width: 100%;
  display: flex;
  align-items: center;
  padding: 16px;
}

.related-keywords-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  margin: 0;
  line-height: 1.5;
}

.related-keywords-section a {
  color: var(--md-sys-color-on-surface);
  transition: color 0.2s var(--md-sys-motion-easing-standard);
}

.related-keywords-section a:hover {
  color: var(--md-sys-color-primary);
}

.btn-outline-primary {
  border: 2px solid var(--md-sys-color-outline);
  color: var(--md-sys-color-primary);
  font-weight: 600;
  transition: all 0.2s var(--md-sys-motion-easing-standard);
}

.btn-outline-primary:hover {
  background-color: var(--md-sys-color-primary-container);
  border-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary-container);
}

.seo-content {
  margin-top: 48px;
  margin-bottom: 32px;
  padding: 24px;
  background-color: var(--md-sys-color-surface-container-lowest);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--md-sys-shape-corner-medium);
  opacity: 0.85;
  font-size: 0.875rem;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.6;
  transition: opacity 0.3s var(--md-sys-motion-easing-standard);
}

.seo-content:hover {
  opacity: 1;
}

.seo-content-inner {
  max-width: 900px;
}

.seo-heading {
  font-size: 1rem;
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.seo-content p {
  margin-bottom: 12px;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--md-sys-color-on-surface-variant);
}

.seo-content p:last-of-type {
  margin-bottom: 16px;
}

.seo-questions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
  padding: 12px;
  background-color: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-corner-small);
  font-size: 0.8125rem;
}

.seo-label {
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  white-space: nowrap;
}

.seo-items {
  flex: 1;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.5;
}

@media (max-width: 1024px) {
  .keyword-main-card h1 {
    font-size: 2rem;
  }
  
  .keyword-main-card .card-header {
    padding: 32px 24px;
  }
  
  .keyword-main-card .card-body {
    padding: 32px 24px;
  }
  
  .keyword-description .markdown-body,
  .markdown-body {
    font-size: 1.125rem !important;
    line-height: 1.7 !important;
  }
  
  .keyword-description .markdown-body p,
  .markdown-body p,
  .markdown-body li {
    font-size: 1.125rem !important;
  }
  
  .videos-section h2,
  .related-keywords-section h2 {
    font-size: 1.25rem;
  }
  
  
  .seo-content {
    padding: 16px;
    font-size: 0.8125rem;
  }
  
  .seo-heading {
    font-size: 0.9375rem;
  }
  
  .seo-questions {
    font-size: 0.75rem;
  }
}

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

.keyword-main-card {
  animation: fadeInUp 0.15s var(--md-sys-motion-easing-emphasized);
}

.videos-section,
.related-keywords-section {
  animation: fadeInUp 0.2s var(--md-sys-motion-easing-emphasized);
}

.seo-section {
  background: transparent;
  border-radius: 0;
  padding: 1rem 0;
  margin-top: 3rem;
  border: none;
  border-top: 1px solid #f0f0f0;
  opacity: 0.7;
}

.seo-heading {
  font-size: 0.8rem;
  font-weight: 400;
  color: #9e9e9e;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: center;
}

.seo-heading i {
  color: #bdbdbd;
  font-size: 0.75rem;
  margin-right: 0.3rem;
}

.seo-paragraph {
  line-height: 1.5;
  color: #9e9e9e;
  font-size: 0.75rem;
  margin-bottom: 0.5rem;
}

.seo-questions {
  background: transparent;
  border-radius: 0;
  padding: 0.5rem 0;
  margin-top: 0.75rem;
  border: none;
}

.seo-questions h5 {
  color: #9e9e9e;
  font-size: 0.75rem;
  font-weight: 400;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
}

.seo-questions h5 i {
  color: #bdbdbd;
  font-size: 0.7rem;
  margin-right: 0.25rem;
}



.seo-questions .badge {
  font-size: 0.7rem;
  font-weight: 300;
  padding: 0.15rem 0.4rem;
  margin: 0.15rem;
  border-radius: 4px;
  background: transparent !important;
  color: #bdbdbd !important;
  border: 1px solid #e0e0e0;
  transition: none;
}

.seo-questions .badge:hover {
  background: rgba(0, 0, 0, 0.02) !important;
  border-color: #d0d0d0;
  color: #9e9e9e !important;
}

/* ============================================================================
   Markdown 內容渲染樣式加強
   ============================================================================ */

.markdown-body {
  font-size: 1rem;
  line-height: 1.8;
  color: #333;
}

/* 標題樣式 */
.markdown-body h1 {
  border-bottom: 3px solid #667eea;
  padding-bottom: 0.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 2em;
  font-weight: 700;
  color: #212529;
}

.markdown-body h2 {
  border-bottom: 2px solid #667eea;
  padding-bottom: 0.3rem;
  margin-top: 1.8rem;
  margin-bottom: 0.8rem;
  font-size: 1.75em;
  font-weight: 700;
  color: #2c3e50;
}

.markdown-body h3 {
  border-bottom: 1px solid #e9ecef;
  margin-top: 1.5rem;
  margin-bottom: 0.6rem;
  font-size: 1.5em;
  font-weight: 700;
  color: #34495e;
}

.markdown-body h4 {
  margin-top: 1.2rem;
  margin-bottom: 0.5rem;
  font-size: 1.25em;
  font-weight: 700;
  color: #34495e;
}

.markdown-body h5 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  font-size: 1.1em;
  font-weight: 700;
  color: #476582;
}

.markdown-body h6 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  font-size: 1em;
  font-weight: 700;
  color: #657383;
}

/* 表格樣式 */
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: white;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.markdown-body table thead {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.markdown-body table thead th {
  padding: 14px 16px;
  font-weight: 700;
  text-align: left;
  border: none;
  font-size: 0.95em;
  letter-spacing: 0.5px;
}

.markdown-body table tbody {
  background: white;
}

.markdown-body table tbody tr {
  transition: all 0.2s ease;
  background: #f8f9fa;
}

.markdown-body table tbody tr:hover {
  background: #e9ecef;
}

.markdown-body table tbody tr:nth-child(odd) {
  background: white;
}

.markdown-body table tbody tr:nth-child(odd):hover {
  background: #f0f1f5;
}

.markdown-body table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid #e9ecef;
}

.markdown-body table tbody tr:last-child td {
  border-bottom: none;
}

/* 代碼塊樣式 */
.markdown-body pre {
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  padding: 16px;
  border-radius: 6px;
  border-left: 4px solid #667eea;
  overflow-x: auto;
  margin: 1.5rem 0;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  line-height: 1.5;
}

.markdown-body pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
  color: #2c3e50;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
}

.markdown-body code {
  background: #f5f5f5;
  color: #c7254e;
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

/* 列表樣式 */
.markdown-body ul,
.markdown-body ol {
  margin: 1rem 0;
  padding-left: 2rem;
}

.markdown-body ul li,
.markdown-body ol li {
  margin: 0.5rem 0;
  line-height: 1.8;
}

.markdown-body ul {
  list-style-type: disc;
}

.markdown-body ul ul {
  list-style-type: circle;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
}

.markdown-body ul ul ul {
  list-style-type: square;
}

.markdown-body ol {
  list-style-type: decimal;
}

/* 引用塊樣式 */
.markdown-body blockquote {
  border-left: 4px solid #667eea;
  margin: 1.5rem 0;
  padding: 1rem;
  padding-left: 1rem;
  background: #f8f9fa;
  border-radius: 4px;
  color: #666;
  font-style: italic;
}

.markdown-body blockquote p {
  margin: 0;
  padding: 0;
}

/* 水平線樣式 */
.markdown-body hr {
  border: none;
  height: 2px;
  background: linear-gradient(to right, transparent, #e9ecef, transparent);
  margin: 2rem 0;
}

/* 連結樣式 */
.markdown-body a:not(.keyword-link) {
  color: #667eea;
  text-decoration: none;
  border-bottom: 1px solid #667eea;
  transition: all 0.2s ease;
}

.markdown-body a:not(.keyword-link):hover {
  color: #764ba2;
  border-bottom-color: #764ba2;
  background: rgba(102, 126, 234, 0.1);
  padding: 0 2px;
}

/* 圖片樣式 */
.markdown-body img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  margin: 1rem 0;
  display: block;
}

.markdown-body figure {
  text-align: center;
  margin: 1.5rem 0;
}

.markdown-body figcaption {
  color: #666;
  font-size: 0.9em;
  margin-top: 0.5rem;
  font-style: italic;
}

/* 強調樣式 */
.markdown-body strong {
  font-weight: 700;
  color: #212529;
}

.markdown-body em {
  font-style: italic;
  color: #666;
}

/* 刪除線樣式 - 加強渲染效果 */
.markdown-body del,
.markdown-body s,
.markdown-body strike {
  text-decoration: line-through;
  text-decoration-thickness: 2px;
  text-decoration-color: #dc3545;
  color: #999;
  opacity: 0.7;
}

.markdown-body del strong,
.markdown-body s strong,
.markdown-body strike strong {
  font-weight: 700;
}

/* 段落樣式 */
.markdown-body p {
  margin: 1rem 0;
  line-height: 1.8;
  color: #444;
  white-space: pre-wrap;  /* 保留換行符 */
  word-wrap: break-word;  /* 避免超長單字破版 */
}

/* 確保單行換行（<br>）正確顯示 */
.markdown-body br {
  display: block;
  content: "";
  margin-top: 0.5em;
}

/* 行內代碼和代碼塊的格式化 */
.markdown-body code,
.markdown-body pre {
  font-family: 'Courier New', Courier, monospace;
}

/* 響應式調整 */
@media (max-width: 768px) {
  .markdown-body {
    font-size: 0.95rem;
  }
  
  .markdown-body h1 {
    font-size: 1.75em;
  }
  
  .markdown-body h2 {
    font-size: 1.5em;
  }
  
  .markdown-body h3 {
    font-size: 1.25em;
  }
  
  .markdown-body table {
    font-size: 0.9em;
  }
  
  .markdown-body table thead th,
  .markdown-body table tbody td {
    padding: 8px 10px;
  }
  
  .markdown-body pre {
    padding: 12px;
    font-size: 0.85em;
  }
}

@media (max-width: 768px) {
  .seo-section {
    padding: 0.75rem 0;
    margin-top: 2.5rem;
    opacity: 0.6;
  }

  .seo-heading {
    font-size: 0.75rem;
  }

  .seo-paragraph {
    font-size: 0.7rem;
  }

  .seo-questions {
    padding: 0.4rem 0;
  }

  .seo-questions .badge {
    font-size: 0.65rem;
    padding: 0.1rem 0.35rem;
  }
}