/* ===== ARTICLE SPECIFIC STYLES ===== */

/* Article Page Color Override - Use Purple (#9B95C5) instead of Cyan */
.article,
.article * {
  --article-accent: #9B95C5;
  --article-accent-rgb: 155, 149, 197;
}

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--article-accent), var(--secondary-color));
  z-index: calc(var(--z-fixed) + 1);
  transition: width 0.1s ease;
  box-shadow: 0 0 10px rgba(155, 149, 197, 0.5);
}

/* Breadcrumb */
.section-small {
  padding: 2rem 0;
}

.breadcrumb {
  background-color: var(--bg-secondary);
  margin-top: 4.5rem;
}

.breadcrumb__nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--small-font-size);
  color: var(--text-secondary);
}

.breadcrumb__nav a {
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.breadcrumb__nav a:hover {
  color: var(--article-accent);
}

.breadcrumb__nav span:last-child {
  color: var(--text-primary);
}

/* Article Layout */
.article {
  padding: 3rem 0;
  overflow-x: hidden;
}

.article__layout {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 3rem;
  align-items: start;
  width: 100%;
  max-width: 100%;
}

/* Article Main Content */
.article__main {
  max-width: 800px;
  width: 100%;
  min-width: 0;
}

.article__header {
  margin-bottom: var(--mb-3);
}

.article__meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: var(--mb-1-5);
  font-size: var(--small-font-size);
}

.article__category {
  background-color: rgba(155, 149, 197, 0.2);
  color: var(--article-accent);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: var(--font-semibold);
}

.article__date,
.article__read-time {
  color: var(--text-secondary);
}

.article__title {
  font-size: 3rem;
  line-height: 1.2;
  margin-bottom: var(--mb-2);
  color: var(--text-primary);
}

.article__author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author__avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--article-accent), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-bold);
  font-size: 1.25rem;
  color: var(--bg-primary);
  padding: 3px;
  position: relative;
}

.author__avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--bg-primary);
}

/* Gravatar 光暈效果 */
.author__avatar::before {
  content: '';
  position: absolute;
  inset: -4px;
  background: linear-gradient(135deg, var(--article-accent), var(--secondary-color));
  border-radius: 50%;
  opacity: 0.3;
  filter: blur(8px);
  z-index: -1;
}

.author__info {
  display: flex;
  flex-direction: column;
}

.author__name {
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.author__role {
  font-size: var(--small-font-size);
  color: var(--text-secondary);
}

.article__featured-image {
  width: 100%;
  max-width: 100%;
  margin-bottom: var(--mb-3);
  border-radius: 12px;
  overflow: hidden;
}

.article__featured-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* Article Content Styles */
.article__content {
  color: var(--text-primary);
  line-height: 1.8;
  letter-spacing: 0.3px;
}

.article__content .lead {
  font-size: 1.25rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--mb-2-5);
  padding-left: 1rem;
  border-left: 4px solid var(--article-accent);
}

.article__content h2 {
  font-size: 2rem;
  color: var(--article-accent);
  margin-top: var(--mb-3);
  margin-bottom: var(--mb-1-5);
  text-shadow: 0 0 20px rgba(155, 149, 197, 0.3);
}

.article__content h3 {
  font-size: 1.5rem;
  color: var(--text-primary);
  margin-top: var(--mb-2-5);
  margin-bottom: var(--mb-1);
}

.article__content h4 {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-top: var(--mb-2);
  margin-bottom: var(--mb-1);
}

.article__content p {
  margin-bottom: var(--mb-1-5);
}

.article__content strong {
  color: var(--article-accent);
  font-weight: var(--font-semibold);
}

.article__content ul,
.article__content ol {
  margin-left: 1.5rem;
  margin-bottom: var(--mb-1-5);
  padding-left: 0.5rem;
  list-style-position: outside;
}

.article__content ul {
  list-style-type: disc;
}

.article__content ol {
  list-style-type: decimal;
}

.article__content ul li,
.article__content ol li {
  margin-bottom: var(--mb-1);
  position: relative;
  padding-left: 0.5rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
  display: list-item;
}

.article__content ul li::marker {
  color: var(--secondary-color, #9B95C5);
  font-size: 1.2em;
}

.article__content ol li::marker {
  color: var(--secondary-color, #9B95C5);
  font-weight: var(--font-semibold);
}

/* Blockquote - 統一樣式 */
.article__quote,
.article__content blockquote {
  margin: 2rem 0;
  padding: 1.5rem 1.5rem 1.5rem 2rem;
  background: rgba(155, 149, 197, 0.1);
  border-left: 4px solid var(--article-accent);
  border-radius: 0 8px 8px 0;
  font-style: italic;
  color: var(--text-secondary);
  position: relative;
}

.article__quote cite,
.article__content blockquote cite {
  display: block;
  margin-top: var(--mb-1);
  font-size: var(--small-font-size);
  color: var(--article-accent);
  font-style: normal;
}

/* Content Media Elements - 確保所有媒體元素正確顯示 */
.article__content img,
.article__content video,
.article__content iframe,
.article__content svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.article__content img {
  border-radius: 8px;
}

/* Info Box */
.info-box {
  background-color: rgba(155, 149, 197, 0.1);
  border: 2px solid var(--secondary-color);
  border-radius: 12px;
  padding: 1.5rem;
  margin: var(--mb-2) 0;
}

.info-box h4 {
  color: var(--secondary-color);
  margin-bottom: var(--mb-1);
  margin-top: 0;
}

/* Code Block - 優化滾動與斷行 */
.code-block {
  background-color: #2D2D2D;
  border-radius: 8px;
  padding: 1.5rem;
  margin: var(--mb-2) 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.code-block pre {
  margin: 0;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9rem;
  line-height: 1.6;
}

.code-block code {
  color: #A9B7C6;
}

/* 通用程式碼區塊樣式 */
.article__content pre {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 1.5rem;
  border-radius: 8px;
  font-size: 0.875rem;
  line-height: 1.6;
  background-color: #2D2D2D;
}

/* 行內程式碼樣式 */
.article__content code {
  background-color: rgba(45, 45, 45, 0.8);
  color: #00F7DA;
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-family: 'Fira Code', 'Consolas', monospace;
  font-size: 0.9em;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

/* 區塊程式碼覆蓋行內樣式 */
.article__content pre code {
  background-color: transparent;
  padding: 0;
  color: #A9B7C6;
  word-wrap: normal;
  overflow-wrap: normal;
  white-space: pre;
}

/* Table - 優化滾動體驗 */
.table-wrapper,
.markdown-table-wrapper {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.5rem 0;
  border-radius: 8px;

  /* 添加滾動陰影提示 */
  background:
    linear-gradient(90deg, rgba(255,255,255,0.05) 0%, transparent 30px),
    linear-gradient(90deg, transparent calc(100% - 30px), rgba(255,255,255,0.05) 100%);
  background-attachment: local, local;
}

.decision-matrix,
.markdown-table {
  min-width: 600px; /* 防止表格被過度壓縮 */
  width: 100%;
  border-collapse: collapse;
  background-color: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
}

.decision-matrix th,
.decision-matrix td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.decision-matrix th {
  background-color: rgba(155, 149, 197, 0.1);
  color: var(--article-accent);
  font-weight: var(--font-semibold);
}

.decision-matrix td {
  color: var(--text-secondary);
}

.decision-matrix strong {
  color: var(--article-accent);
}

/* Checklist */
.checklist {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin: var(--mb-2) 0;
}

.checklist h4 {
  margin-bottom: var(--mb-1-5);
  margin-top: 0;
}

.checklist label {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: var(--mb-1);
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.checklist label:hover {
  color: var(--text-primary);
}

.checklist input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 0.2rem;
  cursor: pointer;
  accent-color: var(--article-accent);
}

/* Tags */
.article__tags {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin: var(--mb-3) 0;
  padding-top: var(--mb-2);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.tag {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: var(--small-font-size);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.tag:hover {
  border-color: var(--article-accent);
  color: var(--article-accent);
}

/* Share Buttons */
.article__share {
  margin: var(--mb-3) 0;
  padding: var(--mb-2) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.article__share h4 {
  margin-bottom: var(--mb-1);
}

.share__buttons {
  display: flex;
  gap: 1rem;
}

.share__btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
}

.share__btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(155, 149, 197, 0.3);
}

.share__btn--twitter:hover {
  background-color: #1DA1F2;
  color: white;
}

.share__btn--linkedin:hover {
  background-color: #0077B5;
  color: white;
}

.share__btn--copy:hover {
  background-color: var(--article-accent);
  color: var(--bg-primary);
}

/* Floating Share Buttons */
.share-floating {
  position: fixed;
  left: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 50;
}

.share-floating__btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.share-floating__btn:hover {
  background-color: var(--article-accent);
  color: var(--bg-primary);
  transform: scale(1.1);
}

/* Related Posts */
.related-posts {
  margin-top: var(--mb-3);
  margin-bottom: 0; /* 移除底部間距，與留言區緊密連接 */
  padding-bottom: var(--mb-3); /* 保持內部間距 */
}

.related-posts h3 {
  margin-bottom: var(--mb-2);
}

.related-posts__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.related-post {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.related-post:hover {
  border-color: var(--article-accent);
  box-shadow: 0 5px 20px rgba(155, 149, 197, 0.2);
  transform: translateY(-5px);
}

.related-post img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.related-post__content {
  padding: 1rem;
}

.related-post__category {
  font-size: 0.75rem;
  color: var(--article-accent);
  background-color: rgba(155, 149, 197, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  display: inline-block;
  margin-bottom: 0.5rem;
  transition: all 0.3s ease;
}

.related-post:hover .related-post__category {
  background-color: rgba(155, 149, 197, 0.3);
  color: var(--primary-color);
}

.related-post__title {
  font-size: 1rem;
  color: var(--text-primary);
  line-height: 1.4;
}

/* Comments Area */
.comments-area {
  margin-top: 0; /* 移除上方間距，與相關文章緊密連接 */
  padding-top: var(--mb-2); /* 減少頂部內間距 */
  /* border-top: 2px solid rgba(255, 255, 255, 0.1); */ /* 可選：移除分隔線 */
}

.comments-title {
  margin-bottom: var(--mb-2);
  color: var(--text-primary);
  font-size: 1.5rem;
}

.no-comments {
  color: var(--text-secondary);
  margin-bottom: var(--mb-2);
}

/* Comment Form */
.comment-respond {
  margin-top: var(--mb-2);
}

.comment-reply-title {
  margin-bottom: var(--mb-1-5);
  color: var(--text-primary);
  font-size: 1.25rem;
}

.comment-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.comment-form label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-weight: var(--font-medium);
}

.comment-form .required {
  color: #ff6b6b;
}

/* Comment Form Textarea */
.comment-form-comment textarea {
  width: 100%;
  padding: 1rem;
  background-color: var(--bg-secondary);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  resize: vertical;
  min-height: 150px;
  transition: all 0.3s ease;
}

.comment-form-comment textarea:focus {
  border-color: var(--article-accent);
  box-shadow: 0 0 20px rgba(155, 149, 197, 0.2);
  outline: none;
}

.comment-form-comment textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Comment Form Input Fields */
.comment-form-author,
.comment-form-email,
.comment-form-url {
  flex: 1;
  min-width: 200px;
}

.comment-form-author input,
.comment-form-email input,
.comment-form-url input {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--bg-secondary);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.comment-form-author input:focus,
.comment-form-email input:focus,
.comment-form-url input:focus {
  border-color: var(--article-accent);
  box-shadow: 0 0 20px rgba(155, 149, 197, 0.2);
  outline: none;
}

.comment-form-author input::placeholder,
.comment-form-email input::placeholder,
.comment-form-url input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

/* Submit Button */
.comment-form .submit,
.comment-form .btn-primary {
  background: linear-gradient(135deg, var(--article-accent), var(--secondary-color));
  color: var(--text-primary);
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(155, 149, 197, 0.3);
}

.comment-form .submit:hover,
.comment-form .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(155, 149, 197, 0.4);
}

/* Comment List */
.comment-list {
  list-style: none;
  padding: 0;
  margin: var(--mb-2) 0;
}

.comment-list .comment {
  background-color: var(--bg-secondary);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: var(--mb-1-5);
}

.comment-author {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--mb-1);
}

.comment-author .avatar {
  border-radius: 50%;
  border: 2px solid var(--article-accent);
}

.comment-author .fn {
  color: var(--text-primary);
  font-weight: var(--font-semibold);
  font-style: normal;
}

.comment-metadata {
  color: var(--text-secondary);
  font-size: var(--small-font-size);
  margin-left: 1rem;
}

.comment-metadata a {
  color: var(--text-secondary);
  transition: color 0.3s ease;
}

.comment-metadata a:hover {
  color: var(--article-accent);
}

.comment-content {
  color: var(--text-primary);
  line-height: 1.8;
  margin-top: var(--mb-1);
}

.comment-content p {
  margin-bottom: var(--mb-1);
}

.reply {
  margin-top: var(--mb-1);
}

.reply a {
  color: var(--article-accent);
  font-size: var(--small-font-size);
  transition: opacity 0.3s ease;
}

.reply a:hover {
  opacity: 0.8;
}

/* Sidebar */
.article__sidebar {
  position: sticky;
  top: 2rem;
  align-self: start;
}

.sidebar__card {
  background-color: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: var(--mb-2);
}

.sidebar__title {
  font-size: 1.125rem;
  margin-bottom: var(--mb-1-5);
  color: var(--text-primary);
}

.sidebar__title i {
  color: var(--article-accent);
  margin-right: 0.5rem;
}

/* Author Card */
.author-card {
  text-align: center;
}

.author-card__avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--article-accent), var(--secondary-color));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-bold);
  font-size: 2rem;
  color: var(--bg-primary);
  margin: 0 auto var(--mb-1);
}

.author-card__name {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
  color: var(--text-primary);
}

.author-card__role {
  color: var(--text-secondary);
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-1);
}

.author-card__bio {
  color: var(--text-secondary);
  font-size: var(--small-font-size);
  line-height: 1.6;
  margin-bottom: var(--mb-1-5);
}

.btn-small {
  padding: 0.75rem 1.5rem;
  font-size: var(--small-font-size);
  width: 100%;
}

/* Table of Contents */
/* 預設:桌面版顯示 sidebar 的目錄,隱藏 mobile-toc */
.mobile-toc {
  display: none;
}

.desktop-toc {
  display: block;
}

.toc__nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toc__link {
  color: var(--text-secondary);
  font-size: var(--small-font-size);
  padding: 0.5rem 0;
  border-left: 2px solid transparent;
  padding-left: 1rem;
  transition: all 0.3s ease;
}

.toc__link:hover,
.toc__link.active {
  color: var(--article-accent);
  border-left-color: var(--article-accent);
}

/* Popular Posts */
.popular-posts__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.popular-post {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.popular-post__number {
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, var(--article-accent), var(--secondary-color));
  color: var(--bg-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-bold);
  font-size: var(--small-font-size);
  flex-shrink: 0;
}

.popular-post__title {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.4;
}

.popular-post__views {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

/* Newsletter Card */
.newsletter-card p {
  color: var(--text-secondary);
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-1);
}

.newsletter-card__form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.newsletter-card__form input {
  padding: 0.75rem 1rem;
  background-color: var(--bg-primary);
  border: 2px solid transparent;
  border-radius: 8px;
  color: var(--text-primary);
  font-size: var(--small-font-size);
  transition: all 0.3s ease;
}

.newsletter-card__form input:focus {
  border-color: var(--article-accent);
  box-shadow: 0 0 20px rgba(155, 149, 197, 0.2);
  outline: none;
}

/* ===== RESPONSIVE ===== */
@media screen and (max-width: 1024px) {
  .article__layout {
    grid-template-columns: 1fr;
  }

  .article__sidebar {
    position: static;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
  }

  .share-floating {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  /* 手機版目錄顯示控制 */
  .mobile-toc {
    display: block;
    margin: var(--mb-2) 0;
  }

  .desktop-toc {
    display: none;
  }

  /* 移除主內容區域的寬度限制，讓內容填滿容器 */
  .article__main {
    max-width: none;
  }

  .article__title {
    font-size: 2rem;
  }

  .article__content .lead {
    font-size: 1.125rem;
  }

  .article__content h2 {
    font-size: 1.5rem;
  }

  .article__content h3 {
    font-size: 1.25rem;
  }

  /* 手機版表格優化 */
  .table-wrapper,
  .markdown-table-wrapper {
    margin-left: -1rem;
    margin-right: -1rem;
    width: calc(100% + 2rem);
    border-radius: 0;
  }

  .decision-matrix,
  .markdown-table {
    min-width: 500px; /* 手機版允許更窄 */
  }

  /* 手機版程式碼區塊優化 */
  .article__content pre,
  .code-block {
    margin-left: -1rem;
    margin-right: -1rem;
    width: calc(100% + 2rem);
    border-radius: 0;
    font-size: 0.8125rem;
  }

  /* 手機版引用區塊優化 */
  .article__quote,
  .article__content blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1rem 1rem 1.5rem;
    font-size: 0.9375rem;
  }

  /* 手機版列表縮排優化 */
  .article__content ul,
  .article__content ol {
    margin-left: 1rem;
    padding-left: 0.25rem;
  }

  /* 手機版 Info Box 優化 */
  .info-box {
    padding: 1rem;
    border-width: 1px;
  }

  .related-posts__grid {
    grid-template-columns: 1fr;
  }

  /* 留言表單手機版 */
  .comment-form-author,
  .comment-form-email,
  .comment-form-url {
    min-width: 100%;
  }

  .article__sidebar {
    grid-template-columns: 1fr;
  }

  /* Mermaid 圖表手機版優化 */
  .mermaid-container {
    margin-left: 0;
    margin-right: 0;
    width: 100%;  /* 修正：容器不要超出父元素 */
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .mermaid {
    min-width: 320px;  /* 設定合理的最小寬度,避免圖表過小 */
    font-size: 1rem;   /* 保持正常大小 */
  }

  /* KaTeX 數學公式手機版優化 */
  .katex-display {
    font-size: 0.9em;
  }

  .katex-display > .katex {
    white-space: normal;
    text-align: left;
  }
}

@media screen and (max-width: 480px) {
  .breadcrumb__nav {
    font-size: 0.75rem;
  }

  .article__title {
    font-size: 1.75rem;
  }

  .share__buttons {
    justify-content: center;
  }
}

/* ===== MERMAID 圖表響應式優化 ===== */
.mermaid-container {
  position: relative;
  margin: 2rem 0;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.mermaid {
  max-width: 100%;
  min-width: 300px;
  overflow: visible;
}

/* ===== KATEX 數學公式響應式優化 ===== */
.katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding: 1rem 0;
}

.katex {
  font-size: 1em;
  max-width: 100%;
}