/**
 * Matrix Theme - WordPress 专属深度美化样式
 * 驱动左右双栏博客、文章图文卡片流、侧边栏全套原生小工具、文章排版、评论表单与精致面包屑
 */

/* ==========================================================================
   1. 头部与明暗模式切换 (Site Header & Navigation)
   ========================================================================== */
.mx-site-header {
  position: sticky;
  top: 0;
  z-index: 1020;
  background-color: var(--mx-color-action-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.mx-site-header .navbar-brand {
  color: var(--mx-color-action-text) !important;
  font-size: 1.15rem;
  font-weight: 750;
  text-decoration: none;
}

.mx-site-header .navbar-nav {
  align-items: center;
}

.mx-site-header .navbar-nav .nav-item {
  position: relative;
}

.mx-site-header .navbar-nav .nav-link,
.mx-site-header .navbar-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.9rem !important;
  color: var(--mx-color-action-text) !important;
  opacity: 0.82;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--mx-radius-sm);
  text-decoration: none;
  background: transparent !important;
  transition: opacity var(--mx-duration-fast) var(--mx-ease-standard),
              background-color var(--mx-duration-fast) var(--mx-ease-standard);
}

/* Hover 悬停效果 */
.mx-site-header .navbar-nav .nav-link:hover,
.mx-site-header .navbar-nav a:hover {
  opacity: 1;
  background-color: rgba(255, 255, 255, 0.12) !important;
}

/* 当前激活项（Active / Current Page）：纯白加粗 + 优雅底部指示条 */
.mx-site-header .navbar-nav .nav-link.active,
.mx-site-header .navbar-nav .nav-item.active > .nav-link,
.mx-site-header .navbar-nav .current-menu-item > a,
.mx-site-header .navbar-nav .nav-link[aria-current="page"] {
  opacity: 1 !important;
  font-weight: 700 !important;
  background-color: transparent !important;
}

.mx-site-header .navbar-nav .nav-link.active::after,
.mx-site-header .navbar-nav .nav-item.active > .nav-link::after,
.mx-site-header .navbar-nav .current-menu-item > a::after,
.mx-site-header .navbar-nav .nav-link[aria-current="page"]::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0.9rem;
  right: 0.9rem;
  height: 2.5px;
  background-color: var(--mx-color-action-text);
  border-radius: 2px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
}

/* 明暗模式切换按钮：轻量幽灵按钮 */
.mx-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  padding: 0;
  color: var(--mx-color-action-text);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--mx-radius-md);
  cursor: pointer;
  transition: all var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-theme-toggle:hover,
.mx-theme-toggle:focus {
  color: var(--mx-color-action-text);
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.4);
}

.mx-theme-toggle:focus-visible {
  outline: 2px solid var(--mx-color-action-text);
  outline-offset: 2px;
}

/* 明亮模式下隐藏太阳图标，显示月亮图标 */
[data-bs-theme="light"] .mx-icon-sun { display: none; }
[data-bs-theme="light"] .mx-icon-moon { display: block; }

/* 暗色模式下隐藏月亮图标，显示太阳图标 */
[data-bs-theme="dark"] .mx-icon-sun { display: block; }
[data-bs-theme="dark"] .mx-icon-moon { display: none; }

/* ==========================================================================
   2. 现代化通栏长条面包屑导航 (Breadcrumbs)
   ========================================================================== */
.mx-breadcrumb {
  display: block;
  width: 100%;
  margin-bottom: var(--mx-space-4);
}

.mx-breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.45rem;
  width: 100%;
  margin: 0;
  padding: 0.75rem 1.25rem;
  background: var(--mx-color-surface);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-lg);
  box-shadow: var(--mx-shadow-card);
  list-style: none;
}

.mx-breadcrumb-item {
  display: inline-flex;
  align-items: center;
  font-size: var(--mx-text-sm);
  line-height: 1.4;
}

.mx-breadcrumb-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--mx-color-text-secondary);
  text-decoration: none;
  font-weight: 550;
  transition: color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-breadcrumb-link:hover {
  color: var(--mx-color-link);
}

.mx-breadcrumb-icon {
  color: var(--mx-color-text-muted);
  transition: color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-breadcrumb-link:hover .mx-breadcrumb-icon {
  color: var(--mx-color-link);
}

.mx-breadcrumb-sep {
  display: inline-flex;
  align-items: center;
  margin: 0 0.15rem;
  color: var(--mx-color-text-muted);
  opacity: 0.55;
  user-select: none;
}

.mx-breadcrumb-item.active {
  color: var(--mx-color-text);
  font-weight: 600;
}

.mx-breadcrumb-current-text {
  display: inline-block;
  max-width: 650px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: middle;
}

@media (max-width: 991.98px) {
  .mx-breadcrumb-current-text {
    max-width: 360px;
  }
}

@media (max-width: 575.98px) {
  .mx-breadcrumb-list {
    padding: 0.6rem 0.9rem;
  }
  .mx-breadcrumb-current-text {
    max-width: 160px;
  }
}

/* ==========================================================================
   3. 归档标题
   ========================================================================== */
.mx-archive-header {
  padding-bottom: var(--mx-space-3);
  border-bottom: 1px solid var(--mx-color-border);
}

.mx-archive-title {
  margin-bottom: var(--mx-space-1);
  color: var(--mx-color-text);
  font-size: var(--mx-text-xl);
  font-weight: 750;
  letter-spacing: -0.01em;
}

.mx-archive-desc {
  margin-bottom: 0;
  color: var(--mx-color-text-secondary);
  font-size: var(--mx-text-sm);
}

/* ==========================================================================
   4. 双栏文章卡片流 (Post Card List)
   ========================================================================== */
.mx-post-list {
  display: flex;
  flex-direction: column;
  gap: var(--mx-space-4);
}

.mx-post-card {
  display: flex;
  gap: var(--mx-space-4);
  padding: var(--mx-space-4);
  background: var(--mx-color-surface);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-lg);
  box-shadow: var(--mx-shadow-card);
  transition: border-color var(--mx-duration-fast) var(--mx-ease-standard),
              box-shadow var(--mx-duration-normal) var(--mx-ease-standard),
              transform var(--mx-duration-normal) var(--mx-ease-standard);
}

.mx-post-card:hover {
  border-color: var(--mx-color-focus);
  box-shadow: var(--mx-shadow-raised);
  transform: translateY(-2px);
}

/* 缩略图区域 */
.mx-post-card-thumb {
  position: relative;
  display: block;
  flex: 0 0 220px;
  width: 220px;
  height: 145px;
  overflow: hidden;
  border-radius: var(--mx-radius-md);
  background: var(--mx-color-surface-subtle);
  text-decoration: none;
}

.mx-post-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--mx-duration-normal) var(--mx-ease-standard);
}

.mx-post-card:hover .mx-post-card-img {
  transform: scale(1.05);
}

/* 占位渐变封面 */
.mx-post-card-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  color: #ffffff;
  transition: transform var(--mx-duration-normal) var(--mx-ease-standard);
}

.mx-post-card:hover .mx-post-card-placeholder {
  transform: scale(1.05);
}

.mx-placeholder-char {
  font-size: 2.25rem;
  font-weight: 800;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  user-select: none;
}

/* 卡片内容主体 */
.mx-post-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}

.mx-post-card-title {
  margin: 0 0 var(--mx-space-2);
  font-size: var(--mx-text-lg);
  font-weight: 700;
  line-height: var(--mx-leading-tight);
}

.mx-post-card-title a {
  color: var(--mx-color-text);
  text-decoration: none;
  transition: color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-post-card-title a:hover {
  color: var(--mx-color-link);
}

/* Meta 元信息 */
.mx-post-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--mx-space-3);
  margin-bottom: var(--mx-space-2);
  color: var(--mx-color-text-muted);
  font-size: var(--mx-text-xs);
}

.mx-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.mx-meta-icon {
  flex-shrink: 0;
  opacity: 0.75;
}

.mx-post-card-meta a {
  color: var(--mx-color-text-muted);
  text-decoration: none;
  font-weight: 600;
}

.mx-post-card-meta a:hover {
  color: var(--mx-color-link);
}

/* 80 字摘要 */
.mx-post-card-excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
  color: var(--mx-color-text-secondary);
  font-size: var(--mx-text-sm);
  line-height: var(--mx-leading-normal);
}

/* ==========================================================================
   5. 侧边栏与全套原生 Widget 美化 (Sidebar Widgets)
   ========================================================================== */
.mx-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--mx-space-4);
}

/* 侧边栏卡片容器（覆盖自定义 .mx-widget 与 WordPress 原生 .widget） */
.mx-sidebar .widget,
.mx-sidebar .mx-widget {
  margin-bottom: var(--mx-space-4);
  padding: var(--mx-space-4);
  background: var(--mx-color-surface);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-lg);
  box-shadow: var(--mx-shadow-card);
}

.mx-sidebar .widget:last-child {
  margin-bottom: 0;
}

/* 小工具标题 */
.mx-sidebar .widget-title,
.mx-sidebar .widgettitle,
.mx-sidebar .mx-widget-title,
.mx-sidebar .wp-block-heading {
  margin: 0 0 var(--mx-space-3);
  padding-left: var(--mx-space-2);
  color: var(--mx-color-text);
  border-left: 3px solid var(--mx-color-action-bg);
  font-size: var(--mx-text-base);
  font-weight: 700;
  line-height: 1.2;
}

/* 移除所有小工具列表的默认样式 */
.mx-sidebar .widget ul,
.mx-sidebar .widget ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mx-sidebar .widget li {
  position: relative;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--mx-color-border);
  color: var(--mx-color-text-secondary);
  font-size: var(--mx-text-sm);
  line-height: 1.5;
}

.mx-sidebar .widget li:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.mx-sidebar .widget li:first-child {
  padding-top: 0;
}

.mx-sidebar .widget a {
  color: var(--mx-color-text);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-sidebar .widget a:hover {
  color: var(--mx-color-link);
}

/* 5.1 搜索小工具美化 (widget_search / wp-block-search) */
.mx-sidebar .widget_search form,
.mx-sidebar .search-form,
.mx-sidebar .wp-block-search {
  margin: 0;
}

.mx-sidebar .widget_search .screen-reader-text,
.mx-sidebar .wp-block-search__label {
  display: none;
}

.mx-sidebar .widget_search form,
.mx-sidebar .wp-block-search__inside-wrapper {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.mx-sidebar .widget_search input[type="search"],
.mx-sidebar .widget_search input[type="text"],
.mx-sidebar .wp-block-search__input {
  flex: 1;
  min-height: 40px;
  padding: 0.375rem 0.75rem;
  color: var(--mx-color-text);
  background-color: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-sm) 0 0 var(--mx-radius-sm);
  font-size: var(--mx-text-sm);
  outline: none;
  transition: border-color var(--mx-duration-fast) var(--mx-ease-standard),
              background-color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-sidebar .widget_search input:focus,
.mx-sidebar .wp-block-search__input:focus {
  border-color: var(--mx-color-focus);
  background-color: var(--mx-color-surface);
  box-shadow: 0 0 0 0.2rem var(--bs-focus-ring-color);
}

.mx-sidebar .widget_search button,
.mx-sidebar .widget_search input[type="submit"],
.mx-sidebar .wp-block-search__button {
  min-width: 44px;
  min-height: 40px;
  padding: 0 1rem;
  color: var(--mx-color-action-text);
  background-color: var(--mx-color-action-bg);
  border: 1px solid var(--mx-color-action-bg);
  border-radius: 0 var(--mx-radius-sm) var(--mx-radius-sm) 0;
  font-size: var(--mx-text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-sidebar .widget_search button:hover,
.mx-sidebar .widget_search input[type="submit"]:hover,
.mx-sidebar .wp-block-search__button:hover {
  background-color: var(--mx-color-action-hover);
  border-color: var(--mx-color-action-hover);
}

/* 5.2 近期文章 (widget_recent_entries) */
.mx-sidebar .widget_recent_entries li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.mx-sidebar .widget_recent_entries li a {
  font-weight: 600;
  line-height: 1.4;
}

.mx-sidebar .widget_recent_entries .post-date {
  color: var(--mx-color-text-muted);
  font-size: var(--mx-text-xs);
}

/* 5.3 分类与归档 (widget_categories / widget_archive) */
.mx-sidebar .widget_categories li,
.mx-sidebar .widget_archive li {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mx-sidebar .widget_categories li a,
.mx-sidebar .widget_archive li a {
  display: inline-block;
  flex: 1;
}

.mx-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 0.4rem;
  color: var(--mx-color-text-muted);
  background: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
}

/* 5.4 近期评论 (widget_recent_comments) */
.mx-sidebar .widget_recent_comments li {
  color: var(--mx-color-text-secondary);
}

.mx-sidebar .widget_recent_comments .comment-author-link {
  color: var(--mx-color-text);
  font-weight: 700;
}

.mx-sidebar .widget_recent_comments a {
  color: var(--mx-color-link);
}

/* 5.5 标签云 (widget_tag_cloud) */
.mx-sidebar .widget_tag_cloud .tagcloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mx-space-2);
}

.mx-sidebar .widget_tag_cloud .tagcloud a {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  color: var(--mx-color-action-bg);
  background: var(--mx-color-brand-subtle);
  border-radius: var(--mx-radius-pill);
  font-size: 0.8rem !important;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-sidebar .widget_tag_cloud .tagcloud a:hover {
  color: var(--mx-color-action-text);
  background: var(--mx-color-action-bg);
}

/* ==========================================================================
   6. 文章详情页排版与深度精修 (Single Post)
   ========================================================================== */
.mx-single-article {
  padding: var(--mx-space-6);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
}

.mx-single-title {
  color: var(--mx-color-text);
  font-size: var(--mx-text-2xl);
  font-size: clamp(1.5rem, 3.5vw, 2rem);
  font-weight: 800;
  line-height: var(--mx-leading-tight);
  letter-spacing: -0.02em;
}

/* 元信息徽章化 */
.mx-post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--mx-space-2);
  margin-top: var(--mx-space-3);
  padding-bottom: var(--mx-space-4);
  border-bottom: 1px solid var(--mx-color-border);
}

.mx-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  color: var(--mx-color-text-secondary);
  background: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-pill);
  font-size: var(--mx-text-xs);
  font-weight: 550;
}

.mx-meta-badge a {
  color: var(--mx-color-text-secondary);
  text-decoration: none;
}

.mx-meta-badge a:hover {
  color: var(--mx-color-link);
}

/* 正文深度排版 */
.mx-post-content {
  margin-top: var(--mx-space-6);
  color: var(--mx-color-text);
  font-size: 1.025rem;
  line-height: 1.8;
}

.mx-post-content p {
  margin-bottom: 1.25rem;
}

.mx-post-content h2 {
  margin: 2.5rem 0 1rem;
  padding: 0.25rem 0 0.25rem var(--mx-space-3);
  color: var(--mx-color-text);
  border-left: 4px solid var(--mx-color-action-bg);
  font-size: 1.35rem;
  font-weight: 750;
  line-height: var(--mx-leading-tight);
  scroll-margin-top: var(--mx-header-offset);
}

.mx-post-content h3 {
  margin: 2rem 0 0.85rem;
  color: var(--mx-color-text);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: var(--mx-leading-tight);
  scroll-margin-top: var(--mx-header-offset);
}

.mx-post-content img {
  max-width: 100%;
  height: auto;
  margin: 1.5rem 0;
  border-radius: var(--mx-radius-md);
  box-shadow: var(--mx-shadow-card);
}

.mx-post-content blockquote {
  margin: 1.75rem 0;
  padding: 1rem 1.25rem;
  color: var(--mx-color-text-secondary);
  background: var(--mx-color-surface-subtle);
  border-left: 4px solid var(--mx-color-action-bg);
  border-radius: 0 var(--mx-radius-md) var(--mx-radius-md) 0;
  font-size: 0.95rem;
  line-height: 1.7;
}

.mx-post-content blockquote p:last-child {
  margin-bottom: 0;
}

.mx-post-content pre {
  max-width: 100%;
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  color: var(--mx-color-text);
  background: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-md);
  font-family: var(--mx-font-mono);
  font-size: var(--mx-text-sm);
  line-height: 1.6;
}

.mx-post-content code {
  padding: 0.2em 0.4em;
  color: var(--mx-color-action-bg);
  background: var(--mx-color-brand-subtle);
  border-radius: 0.25rem;
  font-family: var(--mx-font-mono);
  font-size: 0.875em;
}

.mx-post-content pre code {
  padding: 0;
  color: inherit;
  background: none;
  font-size: inherit;
}

.mx-post-content ul,
.mx-post-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.mx-post-content li {
  margin-bottom: 0.35rem;
}

/* 文章底部标签区 */
.mx-post-tags {
  display: flex;
  align-items: center;
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--mx-color-border);
}

.mx-tags-label {
  flex-shrink: 0;
  color: var(--mx-color-text-secondary);
  font-size: var(--mx-text-sm);
  font-weight: 700;
}

.mx-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  color: var(--mx-color-action-bg);
  background: var(--mx-color-brand-subtle);
  border-radius: var(--mx-radius-pill);
  font-size: var(--mx-text-xs);
  font-weight: 600;
  text-decoration: none;
  transition: background var(--mx-duration-fast) var(--mx-ease-standard),
              color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-tag:hover {
  color: var(--mx-color-action-text);
  background: var(--mx-color-action-bg);
  text-decoration: none;
}

/* 上一篇/下一篇导航卡片 */
.mx-post-navigation {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--mx-color-border);
}

.mx-nav-link {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 80px;
  padding: 0.85rem 1.15rem;
  background: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-md);
  text-decoration: none;
  transition: border-color var(--mx-duration-fast) var(--mx-ease-standard),
              box-shadow var(--mx-duration-fast) var(--mx-ease-standard),
              transform var(--mx-duration-normal) var(--mx-ease-standard);
}

.mx-nav-link:not(.mx-nav-disabled):hover {
  color: var(--mx-color-link);
  border-color: var(--mx-color-focus);
  box-shadow: var(--mx-shadow-raised);
  transform: translateY(-2px);
}

.mx-nav-disabled {
  opacity: 0.6;
  cursor: default;
}

.mx-nav-direction {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.3rem;
  color: var(--mx-color-action-bg);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mx-nav-title {
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--mx-color-text);
  font-size: var(--mx-text-sm);
  font-weight: 600;
  line-height: 1.4;
}

.mx-nav-next .mx-nav-direction {
  justify-content: flex-end;
}

/* ==========================================================================
   7. 评论区与评论表单深度美化 (Comments & Respond)
   ========================================================================= */
.mx-comments {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--mx-color-border);
}

.mx-comment-list {
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.mx-comment-item {
  margin-bottom: 1rem;
}

.mx-comment-body {
  padding: 1.15rem;
  background: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-md);
}

.mx-comment-item .children {
  margin-top: 1rem;
  margin-left: 2rem;
  padding: 0;
  list-style: none;
}

.mx-comment-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mx-avatar-wrap {
  flex-shrink: 0;
}

.mx-comment-avatar {
  border: 2px solid var(--mx-color-border);
}

.mx-comment-author {
  display: block;
  color: var(--mx-color-text);
  font-size: 0.95rem;
  font-weight: 700;
}

.mx-comment-author a {
  color: var(--mx-color-text);
  text-decoration: none;
}

.mx-comment-author a:hover {
  color: var(--mx-color-link);
}

.mx-comment-date {
  display: block;
  font-size: 0.75rem;
}

.mx-comment-content {
  color: var(--mx-color-text);
  font-size: 0.925rem;
  line-height: 1.65;
}

.mx-comment-content p:last-child {
  margin-bottom: 0;
}

.mx-comment-actions {
  margin-top: 0.5rem;
}

.mx-reply-link a {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  color: var(--mx-color-action-bg);
  background: var(--mx-color-surface);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-reply-link a:hover {
  color: var(--mx-color-action-text);
  background: var(--mx-color-action-bg);
  border-color: var(--mx-color-action-bg);
}

/* 评论表单美化 */
.mx-comment-respond {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-lg);
}

.comment-reply-title {
  margin: 0 0 1rem 0;
  font-size: 1.15rem;
  font-weight: 750;
}

.mx-comment-form .form-control,
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  color: var(--mx-color-text);
  background-color: var(--mx-color-surface);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-sm);
  font-size: 0.925rem;
  outline: none;
  transition: border-color var(--mx-duration-fast) var(--mx-ease-standard),
              box-shadow var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-comment-form .form-control:focus,
.comment-form input:focus,
.comment-form textarea:focus {
  border-color: var(--mx-color-focus);
  box-shadow: 0 0 0 0.2rem var(--bs-focus-ring-color);
}

/* WordPress 原生评论表单段落兼容 */
.comment-form p {
  margin-bottom: 1rem;
}

.comment-form label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--mx-color-text);
  font-size: 0.875rem;
  font-weight: 600;
}

.comment-form .comment-form-cookies-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.comment-form .comment-form-cookies-consent label {
  margin-bottom: 0;
  color: var(--mx-color-text-secondary);
  font-size: 0.8rem;
  font-weight: normal;
  line-height: 1.4;
}

.comment-form input[type="checkbox"] {
  margin-top: 0.2rem;
}

.comment-form .form-submit {
  margin-bottom: 0;
}

.comment-form input[type="submit"],
.mx-btn-standalone {
  min-width: 110px;
  min-height: 42px;
  padding: 0.5rem 1.5rem;
  color: var(--mx-color-action-text);
  background-color: var(--mx-color-action-bg);
  border: 1px solid var(--mx-color-action-bg);
  border-radius: var(--mx-radius-sm);
  font-size: 0.9rem;
  font-weight: 650;
  cursor: pointer;
  transition: background-color var(--mx-duration-fast) var(--mx-ease-standard),
              transform var(--mx-duration-fast) var(--mx-ease-standard);
}

.comment-form input[type="submit"]:hover,
.mx-btn-standalone:hover {
  background-color: var(--mx-color-action-hover);
  border-color: var(--mx-color-action-hover);
  transform: translateY(-1px);
}

/* TOC 目录 */
.mx-toc {
  position: sticky;
  top: var(--mx-header-offset);
}

.mx-toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.mx-toc-list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.2rem 0.5rem;
  color: var(--mx-color-text-secondary);
  border-radius: var(--mx-radius-sm);
  font-size: var(--mx-text-sm);
  text-decoration: none;
  transition: color var(--mx-duration-fast) var(--mx-ease-standard),
              background var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-toc-list a:hover,
.mx-toc-list a.active {
  color: var(--mx-color-link);
  background: var(--mx-color-surface-subtle);
}

.mx-toc-sub {
  padding-left: var(--mx-space-4);
}

/* 分页 */
.mx-pagination .page-link {
  color: var(--mx-color-text);
  background-color: var(--mx-color-surface);
  border-color: var(--mx-color-border);
}

.mx-pagination .page-item.active .page-link {
  color: var(--mx-color-action-text);
  background-color: var(--mx-color-action-bg);
  border-color: var(--mx-color-action-bg);
}

.mx-pagination .page-link:hover {
  color: var(--mx-color-link);
  background-color: var(--mx-color-surface-subtle);
  border-color: var(--mx-color-focus);
}

/* WordPress 工具栏适配 */
.admin-bar .mx-site-header {
  top: 32px;
}

@media (max-width: 782px) {
  .admin-bar .mx-site-header {
    top: 46px;
  }
}

/* ==========================================================================
   8. 响应式与断点
   ========================================================================== */
@media (max-width: 767.98px) {
  .mx-post-card {
    flex-direction: column;
  }

  .mx-post-card-thumb {
    width: 100%;
    height: 180px;
  }
  
  .mx-single-article {
    padding: 1.25rem;
  }
  
  .mx-comment-respond {
    padding: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mx-post-card:hover,
  .mx-nav-link:hover,
  .mx-tag:hover,
  .mx-btn-standalone:hover {
    transform: none;
  }
  .mx-post-card:hover .mx-post-card-img,
  .mx-post-card:hover .mx-post-card-placeholder {
    transform: none;
  }
}

/* ==========================================================================
   9. 现代化页脚与备案信息 (Site Footer & ICP Beian)
   ========================================================================== */
.mx-site-footer {
  margin-top: auto;
  padding: 2.25rem 0 2rem;
  background: var(--mx-color-surface);
  border-top: 1px solid var(--mx-color-border);
  color: var(--mx-color-text-secondary);
  font-size: var(--mx-text-sm);
  line-height: 1.6;
}

.mx-footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.45rem;
}

.mx-footer-copyright {
  font-weight: 550;
  color: var(--mx-color-text);
}

.mx-footer-beian {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: var(--mx-text-xs);
}

.mx-beian-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.mx-beian-icon {
  flex-shrink: 0;
  color: var(--mx-color-text-muted);
}

.mx-footer-credits {
  font-size: var(--mx-text-xs);
  color: var(--mx-color-text-muted);
}

.mx-footer-sep {
  color: var(--mx-color-text-muted);
  opacity: 0.45;
  user-select: none;
}

.mx-footer-link {
  color: var(--mx-color-text-secondary);
  text-decoration: none;
  transition: color var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-footer-link:hover {
  color: var(--mx-color-link);
  text-decoration: underline;
}

.mx-footer-highlight {
  color: var(--mx-color-action-bg);
  font-weight: 650;
}

/* ==========================================================================
   10. 友情链接通栏卡片 (Friendly Links Section)
   ========================================================================== */
.mx-links-section {
  width: 100%;
}

.mx-links-card {
  padding: 1.25rem 1.5rem;
  background: var(--mx-color-surface);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-lg);
  box-shadow: var(--mx-shadow-card);
}

.mx-links-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px dashed var(--mx-color-border);
}

.mx-links-icon {
  color: var(--mx-color-action-bg);
}

.mx-links-title {
  margin: 0;
  color: var(--mx-color-text);
  font-size: var(--mx-text-base);
  font-weight: 700;
  line-height: 1.2;
}

.mx-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
}

.mx-link-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  background: var(--mx-color-surface-subtle);
  border: 1px solid var(--mx-color-border);
  border-radius: var(--mx-radius-md);
  text-decoration: none;
  transition: all var(--mx-duration-fast) var(--mx-ease-standard);
}

.mx-link-item:hover {
  border-color: var(--mx-color-focus);
  background: var(--mx-color-surface);
  box-shadow: var(--mx-shadow-raised);
  transform: translateY(-2px);
  text-decoration: none;
}

.mx-link-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: #ffffff;
  background: var(--mx-color-action-bg);
  border-radius: var(--mx-radius-pill);
  font-size: 0.875rem;
  font-weight: 700;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.mx-link-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.mx-link-name {
  color: var(--mx-color-text);
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mx-link-item:hover .mx-link-name {
  color: var(--mx-color-link);
}

.mx-link-desc {
  color: var(--mx-color-text-muted);
  font-size: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}