:root { --dd-header-h: 60px; }
/*
Theme Name: DayuDown
Theme URI: https://example.com/dayudown
Description: 简洁的资源付费分享主题，兼容 Erphpdown。支持 VIP、用户中心、投稿、导航站风格友链、多配色切换。
Author: DayuDown
Version: 1.11.40
Requires at least: 5.8
Tested up to: 6.7
Requires PHP: 7.4
Text Domain: dayudown
Tags: download, vip, blog, custom-colors
*/

/* ============================================================
   基础重置与变量（默认配色：蓝）
   通过 html[data-theme="xxx"] 切换整站配色
   ============================================================ */
:root,
html[data-theme="blue"] {
  --dd-primary: #2563eb;
  --dd-primary-hover: #1d4ed8;
  --dd-primary-soft: #eff6ff;
  --dd-bg: #f5f7fb;
  --dd-card: #ffffff;
  --dd-text: #1e293b;
  --dd-text-muted: #64748b;
  --dd-border: #e2e8f0;
  --dd-success: #16a34a;
  --dd-warning: #d97706;
  --dd-danger: #dc2626;
  --dd-radius: 10px;
  --dd-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 12px rgba(15, 23, 42, 0.04);
  --dd-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --dd-max: 1200px;
}

html[data-theme="green"] {
  --dd-primary: #059669;
  --dd-primary-hover: #047857;
  --dd-primary-soft: #ecfdf5;
}

html[data-theme="orange"] {
  --dd-primary: #ea580c;
  --dd-primary-hover: #c2410c;
  --dd-primary-soft: #fff7ed;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--dd-font);
  font-size: 15px;
  line-height: 1.6;
  color: var(--dd-text);
  background: var(--dd-bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--dd-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--dd-primary-hover);
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.6em;
  line-height: 1.35;
  font-weight: 600;
}

p {
  margin: 0 0 1em;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

/* ============================================================
   布局（唯一限宽容器 = .dd-container，默认 1200px）
   顶栏、正文、页脚各自用一层 .dd-container，互不嵌套限宽。
   ============================================================ */
.dd-container {
  width: 100%;
  max-width: var(--dd-max, 1200px);
  margin: 0 auto;
  padding: 0 16px;
  box-sizing: border-box;
}

.dd-main {
  padding: 24px 0 48px;
  min-height: 60vh;
}

.dd-grid {
  display: grid;
  gap: 20px;
}

.dd-grid-2 {
  grid-template-columns: minmax(0, 1fr) 300px;
}
.dd-content-area {
  min-width: 0;
  max-width: 100%;
}

@media (max-width: 900px) {
  .dd-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   顶栏公告
   ============================================================ */
.dd-notice {
  position: relative;

  background: var(--dd-primary);
  color: #fff;
  font-size: 13px;
  text-align: center;
  padding: 8px 16px;
}

.dd-notice a {
  color: #fff;
  text-decoration: underline;
}

/* ============================================================
   头部导航
   ============================================================ */
.dd-header {
  background: var(--dd-card);
  border-bottom: 1px solid var(--dd-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--dd-shadow);
}

.dd-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 16px;
}

.dd-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--dd-primary);
  white-space: nowrap;
}

.dd-logo:hover {
  color: var(--dd-primary);
  opacity: 0.88;
}

.dd-logo img {
  max-height: 36px;
  width: auto;
}

.dd-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.dd-nav a {
  color: var(--dd-text);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
}

.dd-nav a:hover,
.dd-nav .current-menu-item > a {
  color: var(--dd-primary);
  background: var(--dd-primary-soft);
}

.dd-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  background: transparent;
  color: var(--dd-text);
}

.dd-btn-primary {
  background: var(--dd-primary);
  color: #fff;
}

.dd-btn-primary:hover {
  background: var(--dd-primary-hover);
  color: #fff;
}

.dd-btn-outline {
  border-color: var(--dd-border);
  background: var(--dd-card);
}

.dd-btn-outline:hover {
  border-color: var(--dd-primary);
  color: var(--dd-primary);
}

.dd-btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.dd-icon-btn {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.dd-icon-btn:hover {
  border-color: var(--dd-primary);
  color: var(--dd-primary);
}

/* 汉堡按钮：仅移动端显示，电脑端全宽也隐藏 */
.dd-menu-toggle {
  display: none !important;
}

@media (max-width: 768px) {
  .dd-nav {
    display: none;
  }
  .dd-menu-toggle {
    display: inline-flex !important;
  }
  .dd-nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--dd-card);
    border-bottom: 1px solid var(--dd-border);
    padding: 12px;
    box-shadow: var(--dd-shadow);
  }
}

/* ============================================================
   搜索
   ============================================================ */
.dd-search-form {
  display: flex;
  gap: 0;
  margin-bottom: 0;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--dd-bg, #f8fafc);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.dd-search-form:focus-within {
  border-color: var(--dd-primary);
  box-shadow: 0 0 0 3px var(--dd-primary-soft);
  background: var(--dd-card);
}

.dd-search-form input[type="search"] {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border: none;
  border-radius: 0;
  background: transparent;
  outline: none;
  font-size: 14px;
  color: var(--dd-text);
}
.dd-search-form input[type="search"]::placeholder {
  color: var(--dd-text-muted, #94a3b8);
}
.dd-search-form input[type="search"]:focus {
  border: none;
  box-shadow: none;
}
.dd-search-form button,
.dd-search-form .dd-btn {
  flex-shrink: 0;
  border: none;
  border-radius: 0;
  margin: 0;
  padding: 0 14px;
  font-size: 13px;
  box-shadow: none;
}

/* ============================================================
   卡片 / 文章列表
   ============================================================ */
.dd-card {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  box-shadow: var(--dd-shadow);
  overflow: hidden;
}

.dd-card-body {
  padding: 16px 18px;
}

.dd-post-list {
  display: grid;
  gap: 16px;
}

.dd-post-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  overflow: hidden;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.dd-post-item:hover {
  border-color: var(--dd-primary);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.08);
}

.dd-post-thumb {
  display: block;
  aspect-ratio: 16 / 10;
  background: var(--dd-primary-soft);
  overflow: hidden;
}

.dd-post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dd-post-body {
  padding: 14px 16px 14px 0;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.dd-post-title {
  font-size: 16px;
  margin: 0 0 8px;
}

.dd-post-title a {
  color: var(--dd-text);
}

.dd-post-title a:hover {
  color: var(--dd-primary);
}

.dd-post-excerpt {
  color: var(--dd-text-muted);
  font-size: 13px;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dd-post-meta {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--dd-text-muted);
  align-items: center;
}

.dd-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.dd-badge-vip {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
}

.dd-badge-free {
  background: var(--dd-success);
  color: #fff;
}

.dd-badge-paid {
  background: var(--dd-primary-soft);
  color: var(--dd-primary);
}

.dd-price {
  color: var(--dd-danger);
  font-weight: 600;
}

@media (max-width: 600px) {
  .dd-post-item {
    grid-template-columns: 1fr;
  }
  .dd-post-thumb {
    aspect-ratio: 16 / 9;
  }
  .dd-post-body {
    padding: 12px 14px 14px;
  }
}

/* ============================================================
   分页
   ============================================================ */
.dd-pagination {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.dd-pagination a,
.dd-pagination span {
  display: inline-flex;
  min-width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  color: var(--dd-text);
  font-size: 14px;
}

.dd-pagination .current {
  background: var(--dd-primary);
  border-color: var(--dd-primary);
  color: #fff;
}

.dd-pagination a:hover {
  border-color: var(--dd-primary);
  color: var(--dd-primary);
}

/* ============================================================
   文章页
   ============================================================ */
.dd-single {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 24px;
  box-shadow: var(--dd-shadow);
}

.dd-single-title {
  font-size: 24px;
  margin-bottom: 12px;
}

.dd-single-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--dd-text-muted);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--dd-border);
}

.dd-content {
  font-size: 15px;
  line-height: 1.8;
  word-break: break-word;
}

.dd-content h2,
.dd-content h3 {
  margin-top: 1.4em;
}

.dd-content img {
  border-radius: 8px;
  cursor: zoom-in;
  margin: 12px 0;
}

.dd-content a {
  text-decoration: underline;
}

.dd-content ul,
.dd-content ol {
  margin: 0 0 1em 1.4em;
  list-style: disc;
}

.dd-content ol {
  list-style: decimal;
}

/* 代码块 + 复制按钮 */
.dd-code-wrap {
  position: relative;
  margin: 16px 0;
  border-radius: 8px;
  overflow: hidden;
  background: #0f172a;
}

.dd-code-wrap pre {
  margin: 0;
  padding: 16px 16px 16px 16px;
  overflow-x: auto;
  color: #e2e8f0;
  font-size: 13px;
  line-height: 1.55;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.dd-code-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 6px;
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #e2e8f0;
  cursor: pointer;
}

.dd-code-copy:hover,
.dd-code-copy.is-copied {
  background: var(--dd-primary);
  color: #fff;
}

.dd-content code {
  background: var(--dd-primary-soft);
  color: var(--dd-primary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}

.dd-content pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* 下载盒子（Erphpdown 兼容区域） */
.dd-down-box {
  margin: 24px 0;
  padding: 18px;
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  background: var(--dd-primary-soft);
}

.dd-down-box h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.dd-down-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-bottom: 14px;
  font-size: 14px;
}

.dd-down-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 音视频 */
.dd-content audio,
.dd-content video {
  width: 100%;
  max-width: 100%;
  border-radius: 8px;
  margin: 12px 0;
  background: #000;
}

.dd-content iframe {
  max-width: 100%;
  border-radius: 8px;
}

/* 相关推荐卡片：缩略图贴齐上/左/右 */
.dd-related {
  margin: 28px 0 8px;
  padding-top: 20px;
  border-top: 1px solid var(--dd-border, #e2e8f0);
}
.dd-related-title,
.dd-related h3 {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 600;
}
.dd-related-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (min-width: 720px) {
  .dd-related-list { grid-template-columns: repeat(3, 1fr); }
}
.dd-related-item {
  margin: 0;
  padding: 0;
}
.dd-related-link {
  display: flex;
  flex-direction: column;
  gap: 0;
  text-decoration: none;
  color: var(--dd-text);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius, 10px);
  overflow: hidden;
  background: var(--dd-card);
  height: 100%;
  padding: 0;
  transition: box-shadow .15s, border-color .15s;
}
.dd-related-link:hover {
  border-color: var(--dd-primary);
  box-shadow: var(--dd-shadow);
  color: var(--dd-text);
  background: var(--dd-card);
}
.dd-related-thumb {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  aspect-ratio: 16 / 10;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-border);
  border-radius: 0;
  flex-shrink: 0;
}
.dd-related-thumb--empty {
  background: linear-gradient(135deg, var(--dd-primary-soft), var(--dd-border));
}
.dd-related-name {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  padding: 10px 12px 12px;
}

/* ============================================================
   侧边栏
   ============================================================ */
.dd-sidebar .dd-widget {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--dd-shadow);
}

.dd-widget-title {
  font-size: 15px;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--dd-border);
}

.dd-widget ul li {
  padding: 6px 0;
  border-bottom: 1px dashed var(--dd-border);
  font-size: 13px;
}

.dd-widget ul li:last-child {
  border-bottom: none;
}

/* ============================================================
   面包屑
   ============================================================ */
.dd-breadcrumb {
  font-size: 13px;
  color: var(--dd-text-muted);
  margin-bottom: 16px;
}

.dd-breadcrumb a {
  color: var(--dd-text-muted);
}

.dd-breadcrumb a:hover {
  color: var(--dd-primary);
}

.dd-breadcrumb span {
  margin: 0 6px;
  opacity: 0.5;
}

/* ============================================================
   用户中心 / 登录注册 / 投稿
   ============================================================ */
.dd-panel {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 24px;
  box-shadow: var(--dd-shadow);
  max-width: 480px;
  margin: 0 auto;
}

.dd-panel-wide {
  max-width: 800px;
}

.dd-panel h1 {
  font-size: 22px;
  margin-bottom: 20px;
  text-align: center;
}

.dd-form-group {
  margin-bottom: 14px;
}

.dd-form-group label {
  display: block;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--dd-text-muted);
}

.dd-form-group input,
.dd-form-group textarea,
.dd-form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  background: #fff;
  outline: none;
}

.dd-form-group input:focus,
.dd-form-group textarea:focus {
  border-color: var(--dd-primary);
  box-shadow: 0 0 0 3px var(--dd-primary-soft);
}

.dd-form-actions {
  margin-top: 18px;
}

.dd-form-actions .dd-btn {
  width: 100%;
}

.dd-user-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--dd-border);
  padding-bottom: 12px;
}

.dd-user-nav a {
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--dd-text);
}

.dd-user-nav a.is-active,
.dd-user-nav a:hover {
  background: var(--dd-primary-soft);
  color: var(--dd-primary);
}

/* ============================================================
   友链（导航站风格）
   ============================================================ */
.dd-links-page h1 {
  margin-bottom: 20px;
}

.dd-links-section {
  margin-bottom: 28px;
}

.dd-links-section h2 {
  font-size: 16px;
  margin-bottom: 12px;
  padding-left: 10px;
  border-left: 3px solid var(--dd-primary);
}

.dd-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}

.dd-link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 10px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  text-align: center;
  transition: border-color 0.15s, box-shadow 0.15s;
  color: var(--dd-text);
}

.dd-link-card:hover {
  border-color: var(--dd-primary);
  box-shadow: var(--dd-shadow);
  color: var(--dd-primary);
}

.dd-link-card img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  object-fit: contain;
}

.dd-link-card span {
  font-size: 13px;
  line-height: 1.3;
  word-break: break-all;
}

/* ============================================================
   页脚
   ============================================================ */
.dd-footer {
  background: var(--dd-card);
  border-top: 1px solid var(--dd-border);
  padding: 28px 0;
  font-size: 13px;
  color: var(--dd-text-muted);
  text-align: center;
}

.dd-footer a {
  color: var(--dd-text-muted);
}

.dd-footer a:hover {
  color: var(--dd-primary);
}

/* ============================================================
   返回顶部
   ============================================================ */
.dd-backtop {
  position: fixed;
  right: 20px;
  bottom: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  box-shadow: var(--dd-shadow);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 90;
  font-size: 18px;
  color: var(--dd-text);
}

.dd-backtop.is-visible {
  display: inline-flex;
}

.dd-backtop:hover {
  border-color: var(--dd-primary);
  color: var(--dd-primary);
}

/* ============================================================
   图片灯箱
   ============================================================ */
.dd-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.9);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px 56px;
  cursor: default; /* 遮罩区不改指针样式 */
}
.dd-lightbox.is-open {
  display: flex;
}
.dd-lightbox-img {
  max-width: min(96vw, 1400px);
  max-height: 90vh;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  cursor: default;
  object-fit: contain;
}
.dd-lightbox-nav {
  position: absolute;
  top: 50%;
  margin: 0;
  padding: 0;
  width: 48px;
  height: 72px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.92);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: none;
  transform: translateY(-50%);
  -webkit-appearance: none;
  appearance: none;
}
.dd-lightbox-nav .dd-icon-arrow {
  display: block;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.45));
  pointer-events: none;
}
.dd-lightbox-nav:hover {
  color: var(--dd-primary, #2563eb);
  background: transparent;
}
.dd-lightbox-prev { left: 8px; }
.dd-lightbox-next { right: 8px; }
.dd-lightbox-counter {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  letter-spacing: 0.04em;
}
body.dd-lightbox-open {
  overflow: hidden;
}
.dd-content img.dd-lightbox-able {
  cursor: zoom-in;
}
@media (max-width: 640px) {
  .dd-lightbox {
    padding: 12px 48px;
  }
  .dd-lightbox-nav {
    width: 36px;
    height: 36px;
    font-size: 22px;
  }
}

/* ============================================================
   404
   ============================================================ */
.dd-404 {
  text-align: center;
  padding: 60px 20px;
}

.dd-404 h1 {
  font-size: 72px;
  color: var(--dd-primary);
  margin-bottom: 8px;
}

.dd-404 p {
  color: var(--dd-text-muted);
  margin-bottom: 20px;
}

/* ============================================================
   配色切换器
   ============================================================ */
.dd-theme-switcher {
  display: flex;
  gap: 6px;
  align-items: center;
}

.dd-theme-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--dd-border);
  cursor: pointer;
  padding: 0;
}

.dd-theme-dot[data-theme="blue"] { background: #2563eb; }
.dd-theme-dot[data-theme="green"] { background: #059669; }
.dd-theme-dot[data-theme="orange"] { background: #ea580c; }

.dd-theme-dot.is-active {
  box-shadow: 0 0 0 2px var(--dd-primary);
}

/* ============================================================
   多级菜单
   ============================================================ */
.dd-nav .menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.dd-nav .menu > li {
  position: relative;
}

.dd-nav .menu > li > a {
  display: block;
  color: var(--dd-text);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
}

.dd-nav .menu > li:hover > a,
.dd-nav .menu > .current-menu-item > a,
.dd-nav .menu > .current-menu-ancestor > a {
  color: var(--dd-primary);
  background: var(--dd-primary-soft);
}

.dd-nav .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  box-shadow: var(--dd-shadow);
  padding: 6px 0;
  z-index: 120;
  list-style: none;
}

.dd-nav .menu > li:hover > .sub-menu {
  display: block;
}

.dd-nav .sub-menu li {
  position: relative;
}

.dd-nav .sub-menu a {
  display: block;
  padding: 8px 14px;
  color: var(--dd-text);
  font-size: 13px;
  white-space: nowrap;
}

.dd-nav .sub-menu a:hover {
  background: var(--dd-primary-soft);
  color: var(--dd-primary);
}

/* 三级菜单向右展开 */
.dd-nav .sub-menu .sub-menu {
  top: 0;
  left: 100%;
  margin-left: 2px;
}

.dd-nav .sub-menu li:hover > .sub-menu {
  display: block;
}

@media (max-width: 768px) {
  .dd-nav .menu {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .dd-nav .sub-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    padding-left: 12px;
    min-width: 0;
  }
  .dd-nav .menu-item-has-children.is-open > .sub-menu {
    display: block;
  }
  .dd-nav .sub-menu .sub-menu {
    margin-left: 0;
  }
}

/* ============================================================
   搜索遮罩层（类似 Modown）
   ============================================================ */
.dd-search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(4px);
  z-index: 300;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 15vh 20px 20px;
}

.dd-search-overlay.is-open {
  display: flex;
}

.dd-search-overlay-form {
  width: 100%;
  max-width: 640px;
  display: flex;
  gap: 10px;
  background: var(--dd-card);
  padding: 12px;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.dd-search-overlay-form input[type="search"] {
  flex: 1;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 16px;
  outline: none;
}

.dd-search-overlay-form input[type="search"]:focus {
  border-color: var(--dd-primary);
  box-shadow: 0 0 0 3px var(--dd-primary-soft);
}

.dd-search-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
}

.dd-search-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ============================================================
   代码块配色优化
   ============================================================ */
.dd-code-wrap {
  background: #1e1e2e;
  border: 1px solid #313244;
}

.dd-code-wrap pre {
  color: #cdd6f4;
  background: transparent;
}

.dd-content code {
  background: #f1f5f9;
  color: #c026d3;
  border: 1px solid #e2e8f0;
}

.dd-content pre code {
  background: transparent;
  color: #cdd6f4;
  border: none;
}

/* 简单关键字着色由浏览器默认；块级更易读 */
.dd-code-copy {
  background: #313244;
  color: #cdd6f4;
}

.dd-code-copy:hover,
.dd-code-copy.is-copied {
  background: var(--dd-primary);
  color: #fff;
}

/* ============================================================
   用户中心 / VIP 页
   ============================================================ */
.dd-user-layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 700px) {
  .dd-user-layout {
    grid-template-columns: 1fr;
  }
}

.dd-user-side {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 16px;
  box-shadow: var(--dd-shadow);
}

.dd-user-side .dd-user-nav {
  flex-direction: column;
  border: none;
  padding: 0;
  margin: 0;
  gap: 4px;
}

.dd-user-side .dd-user-nav a {
  display: block;
}

.dd-vip-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.dd-vip-card {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 20px;
  text-align: center;
  box-shadow: var(--dd-shadow);
}

.dd-vip-card h3 {
  margin: 0 0 8px;
}

.dd-vip-card .price {
  font-size: 28px;
  color: var(--dd-danger);
  font-weight: 700;
  margin: 12px 0;
}

.dd-ask-form textarea {
  min-height: 140px;
}

/* 列表布局变体 */
.dd-layout-grid {
  display: grid !important;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.dd-post-grid-item {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  overflow: hidden;
  box-shadow: var(--dd-shadow);
}
.dd-post-grid-item .dd-post-thumb { aspect-ratio: 1; display: block; }
.dd-post-grid-item .dd-post-title { font-size: 14px; padding: 10px 12px 4px; margin: 0; }
.dd-post-grid-item .dd-post-meta { padding: 0 12px 12px; font-size: 12px; }

.dd-post-title-only {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  align-items: center;
}
.dd-post-title-only a { color: var(--dd-text); font-weight: 500; }
.dd-post-meta-inline { font-size: 12px; color: var(--dd-text-muted); white-space: nowrap; }

.dd-post-title3 {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 14px 16px;
}
.dd-title3-imgs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 10px;
}
.dd-title3-imgs img { width: 100%; height: 80px; object-fit: cover; border-radius: 6px; }

.dd-noimg {
  display: flex; align-items: center; justify-content: center;
  height: 100%; min-height: 100px; color: var(--dd-text-muted); font-size: 13px;
  background: var(--dd-primary-soft);
}

/* 分类筛选 */
.dd-cat-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.dd-cat-filter a {
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  color: var(--dd-text);
  font-size: 13px;
}
.dd-cat-filter a.is-active,
.dd-cat-filter a:hover {
  background: var(--dd-primary);
  border-color: var(--dd-primary);
  color: #fff;
}

/* 搜索遮罩：通栏、半屏略小、贴导航底 */
.dd-search-overlay {
  align-items: stretch !important;
  padding: 0 !important;
  background: rgba(15, 23, 42, 0.55) !important;
}
.dd-search-overlay.is-open {
  display: block !important;
}
.dd-search-overlay-form {
  max-width: none !important;
  width: 100% !important;
  border-radius: 0 !important;
  min-height: 42vh;
  max-height: 48vh;
  padding: 28px 24px !important;
  display: flex !important;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,.15) !important;
  border-bottom: 1px solid var(--dd-border);
}
.dd-search-overlay-form input[type="search"] {
  max-width: 640px;
  flex: 1;
  font-size: 16px;
  padding: 14px 16px !important;
}
.dd-search-submit {
  min-width: 140px !important;
  padding: 14px 28px !important;
  font-size: 16px !important;
}
.dd-search-close {
  top: calc(42vh + 12px) !important;
}

/* 密码文章 */
.post-password-form {
  max-width: 400px;
  margin: 24px auto;
  padding: 24px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  box-shadow: var(--dd-shadow);
  text-align: center;
}
.post-password-form label {
  display: block;
  margin-bottom: 12px;
  color: var(--dd-text-muted);
}
.post-password-form input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  margin-bottom: 12px;
}
.post-password-form input[type="submit"] {
  background: var(--dd-primary);
  color: #fff;
  border: none;
  padding: 10px 24px;
  border-radius: 8px;
  cursor: pointer;
}



/* 图集 */
.dd-gallery {
  margin: 20px 0;
  background: var(--dd-card);
  border-radius: var(--dd-radius);
  overflow: hidden;
  border: 1px solid var(--dd-border);
}
.dd-gallery-main {
  position: relative;
  aspect-ratio: 16/10;
  background: #000;
}
.dd-gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  cursor: zoom-in;
  margin: 0 !important;
}
.dd-gallery-thumbs {
  display: flex;
  gap: 6px;
  padding: 8px;
  overflow-x: auto;
}
.dd-gallery-thumbs img {
  width: 64px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
  cursor: pointer;
  opacity: 0.6;
  margin: 0 !important;
  border: 2px solid transparent;
}
.dd-gallery-thumbs img.is-active {
  opacity: 1;
  border-color: var(--dd-primary);
}
.dd-gallery-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,.45);
  color: #fff;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
}
.dd-gallery-prev { left: 8px; }
.dd-gallery-next { right: 8px; }

.dd-list-audio { width: 100%; margin-top: 8px; height: 32px; }
.dd-course-nav { margin: 20px 0; padding: 16px 16px 16px 0; background: var(--dd-primary-soft); border-radius: 8px; }
.dd-course-nav ol { margin: 0; list-style: decimal; }
.dd-course-nav .is-current a { font-weight: 700; color: var(--dd-primary); }

/* ============================================================
   问答列表（参考 Modown 风格，无 Banner）
   ============================================================ */
.dd-qa-page {
  max-width: 900px;
  margin: 0 auto;
}

.dd-qa-header {
  margin-bottom: 20px;
}

.dd-qa-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.dd-qa-title {
  font-size: 22px;
  margin: 0;
}

.dd-qa-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dd-qa-cats a {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  color: var(--dd-text);
  font-size: 13px;
}

.dd-qa-cats a.is-active,
.dd-qa-cats a:hover {
  background: var(--dd-primary);
  border-color: var(--dd-primary);
  color: #fff;
}

.dd-qa-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dd-qa-item {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  box-shadow: var(--dd-shadow);
  transition: border-color 0.15s;
}

.dd-qa-item:hover {
  border-color: var(--dd-primary);
}

.dd-qa-avatar {
  flex-shrink: 0;
}

.dd-qa-avatar img,
.dd-qa-avatar .avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: block;
}

.dd-qa-body {
  flex: 1;
  min-width: 0;
}

.dd-qa-item-title {
  font-size: 16px;
  margin: 0 0 8px;
  line-height: 1.4;
}

.dd-qa-item-title a {
  color: var(--dd-text);
}

.dd-qa-item-title a:hover {
  color: var(--dd-primary);
}

.dd-qa-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--dd-text-muted);
}

.dd-qa-meta .dd-qa-term {
  color: var(--dd-primary);
}

.dd-qa-avatar-inline img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  vertical-align: middle;
}

.dd-qa-single {
  max-width: 900px;
  margin: 0 auto;
}

/* ============================================================
   网址导航页（参考 Modown：左侧快速导航 + 右侧链接块）
   ============================================================ */
.dd-nav-page {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  align-items: start;
  max-width: var(--dd-max);
  margin: 0 auto;
}

.dd-nav-side {
  position: sticky;
  top: 72px;
}

.dd-nav-side-inner {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 16px 12px;
  box-shadow: var(--dd-shadow);
}

.dd-nav-side-title {
  font-size: 15px;
  margin: 0 0 12px;
  padding: 0 8px 10px;
  border-bottom: 1px solid var(--dd-border);
}

.dd-nav-side-menu {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dd-nav-side-menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 10px;
  border-radius: 8px;
  color: var(--dd-text);
  font-size: 14px;
}

.dd-nav-side-menu a:hover,
.dd-nav-side-menu a.is-active {
  background: var(--dd-primary-soft);
  color: var(--dd-primary);
}

.dd-nav-arrow {
  opacity: 0.45;
  font-size: 16px;
}

.dd-nav-main {
  min-width: 0;
}

.dd-nav-intro {
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--dd-text-muted);
}

.dd-link-box {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  padding: 16px 18px 18px;
  margin-bottom: 18px;
  box-shadow: var(--dd-shadow);
  scroll-margin-top: 80px;
}

.dd-link-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 14px;
  padding-left: 10px;
  border-left: 3px solid var(--dd-primary);
}

.dd-link-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.dd-link-item {
  padding: 12px;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  background: var(--dd-bg);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.dd-link-item:hover {
  border-color: var(--dd-primary);
  box-shadow: var(--dd-shadow);
}

.dd-link-main {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dd-link-icon img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: block;
  object-fit: contain;
  background: #fff;
}

.dd-link-name h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--dd-text);
  line-height: 1.3;
}

.dd-link-name:hover h2 {
  color: var(--dd-primary);
}

.dd-link-desc {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--dd-text-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dd-link-empty {
  font-size: 13px;
  color: var(--dd-text-muted);
  margin: 0;
}

@media (max-width: 768px) {
  .dd-nav-page {
    grid-template-columns: 1fr;
  }
  .dd-nav-side {
    position: static;
  }
  .dd-nav-side-menu {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  .dd-nav-side-menu li {
    flex: 0 0 auto;
  }
  .dd-nav-side-menu a {
    padding: 6px 12px;
    border: 1px solid var(--dd-border);
    border-radius: 20px;
    font-size: 13px;
  }
  .dd-nav-arrow {
    display: none;
  }
}

/* ============================================================
   专题 / 课程
   ============================================================ */
.dd-series-page {
  width: 100%;
  max-width: none;
}

.dd-series-hero {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  overflow: hidden;
  margin-bottom: 24px;
  box-shadow: var(--dd-shadow);
}

.dd-series-cover {
  height: 160px;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-primary-soft);
}

.dd-series-hero-body {
  padding: 20px 22px 22px;
}

.dd-series-label {
  margin: 0 0 6px;
  font-size: 12px;
  color: var(--dd-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.dd-series-label a {
  color: var(--dd-primary);
}

.dd-series-title {
  margin: 0 0 10px;
  font-size: 24px;
}

.dd-series-desc {
  color: var(--dd-text-muted);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 10px;
}

.dd-series-desc p:last-child {
  margin-bottom: 0;
}

.dd-series-meta {
  margin: 0;
  font-size: 13px;
  color: var(--dd-text-muted);
}

.dd-series-list-title {
  font-size: 18px;
  margin: 0 0 14px;
}

.dd-series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.dd-series-card {
  display: flex;
  flex-direction: column;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius);
  overflow: hidden;
  color: var(--dd-text);
  box-shadow: var(--dd-shadow);
  transition: border-color 0.15s, transform 0.15s;
}

.dd-series-card:hover {
  border-color: var(--dd-primary);
  color: var(--dd-text);
  transform: translateY(-2px);
}

.dd-series-card-cover {
  height: 120px;
  background-size: cover;
  background-position: center;
}

.dd-series-card-cover--empty {
  background: linear-gradient(135deg, var(--dd-primary-soft), var(--dd-border));
}

.dd-series-card-body {
  padding: 14px 16px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.dd-series-card-body h2 {
  margin: 0 0 8px;
  font-size: 16px;
}

.dd-series-card-body p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--dd-text-muted);
  flex: 1;
}

.dd-series-card-meta {
  font-size: 12px;
  color: var(--dd-primary);
}

.dd-course-ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dd-course-li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--dd-border);
  border-radius: 6px;
}

.dd-course-li:hover {
  background: var(--dd-primary-soft);
}

.dd-course-li.is-current {
  background: var(--dd-primary-soft);
}

.dd-course-li.is-current a {
  font-weight: 600;
  color: var(--dd-primary);
}

.dd-course-num {
  display: inline-flex;
  width: 24px;
  height: 24px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--dd-border);
  font-size: 12px;
  flex-shrink: 0;
}

.dd-course-li.is-current .dd-course-num {
  background: var(--dd-primary);
  color: #fff;
}

.dd-course-nav h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.dd-lesson-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 20px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.dd-lesson-side {
  position: sticky;
  top: 72px;
}

.dd-course-embed {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--dd-border);
}

.dd-topic-tags {
  margin-top: 16px;
}

.dd-muted {
  color: var(--dd-text-muted);
  font-size: 14px;
}

@media (max-width: 860px) {
  .dd-lesson-layout {
    grid-template-columns: 1fr;
  }
  .dd-lesson-side {
    position: static;
  }
}


html.dd-night {
  --dd-primary: #60a5fa;
  --dd-primary-hover: #93c5fd;
  --dd-primary-soft: #1e293b;
  --dd-bg: #0b1220;
  --dd-card: #1e293b;
  --dd-text: #e2e8f0;
  --dd-text-muted: #94a3b8;
  --dd-border: #334155;
  --dd-success: #4ade80;
  --dd-warning: #fbbf24;
  --dd-danger: #f87171;
  color-scheme: dark;
}
html[data-theme="night"] body,
html.dd-night body {
  background: var(--dd-bg);
  color: var(--dd-text);
}

/* ============================================================
   夜间模式：深色底 + 仍可用蓝/绿/橙主题色
   ============================================================ */
html.dd-night {
  --dd-bg: #0b1220;
  --dd-card: #1e293b;
  --dd-text: #e2e8f0;
  --dd-text-muted: #94a3b8;
  --dd-border: #334155;
  --dd-success: #4ade80;
  --dd-warning: #fbbf24;
  --dd-danger: #f87171;
  --dd-shadow: 0 1px 3px rgba(0, 0, 0, 0.35), 0 4px 12px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}
html.dd-night body {
  background: var(--dd-bg);
  color: var(--dd-text);
}

/* 夜间 + 蓝色 */
html.dd-night[data-theme="blue"],
html.dd-night[data-theme="night"] {
  --dd-primary: #60a5fa;
  --dd-primary-hover: #93c5fd;
  --dd-primary-soft: #1e3a5f;
}

/* 夜间 + 绿色 */
html.dd-night[data-theme="green"] {
  --dd-primary: #34d399;
  --dd-primary-hover: #6ee7b7;
  --dd-primary-soft: #064e3b;
}

/* 夜间 + 橙色 */
html.dd-night[data-theme="orange"] {
  --dd-primary: #fb923c;
  --dd-primary-hover: #fdba74;
  --dd-primary-soft: #7c2d12;
}

/* 顶栏菜单：靠左，紧跟 Logo/首页后 */
.dd-header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
}
.dd-nav {
  flex: 1;
  justify-content: flex-start;
  margin-left: 8px;
}
.dd-header-actions {
  margin-left: auto;
}

/* 搜索：无全屏灰罩，主体宽度面板 */
.dd-search-overlay {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  bottom: auto;
  z-index: 300;
  display: none;
  background: transparent !important;
  backdrop-filter: none !important;
  padding: 0 !important;
  justify-content: center;
}
.dd-search-overlay.is-open {
  display: block !important;
}
.dd-search-panel {
  max-width: var(--dd-max, 1100px);
  width: calc(100% - 32px);
  margin: 64px auto 0;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0,0,0,.12);
  padding: 16px;
}
.dd-search-overlay-form {
  display: flex !important;
  align-items: center;
  gap: 10px;
  width: 100% !important;
  max-width: none !important;
  min-height: 0 !important;
  max-height: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
  box-shadow: none !important;
  border: none !important;
  background: transparent !important;
}
.dd-search-overlay-form input[type="search"] {
  flex: 1;
  min-width: 0;
  padding: 12px 14px !important;
  font-size: 15px;
}
.dd-search-submit {
  min-width: 110px !important;
  padding: 12px 18px !important;
}
.dd-search-close {
  position: static !important;
  width: 40px;
  height: 40px;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  background: var(--dd-bg);
  color: var(--dd-text);
  font-size: 20px;
  cursor: pointer;
  flex-shrink: 0;
}

/* 登录注册遮罩 */
.dd-auth-modal {
  position: fixed;
  inset: 0;
  z-index: 400;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.45);
  padding: 20px;
}
.dd-auth-modal.is-open {
  display: flex;
}
.dd-auth-dialog {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--dd-card);
  border-radius: 12px;
  border: 1px solid var(--dd-border);
  padding: 24px 22px 22px;
  box-shadow: 0 20px 50px rgba(0,0,0,.2);
}
.dd-auth-close {
  position: absolute;
  top: 10px;
  right: 12px;
  border: none;
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  color: var(--dd-text-muted);
}
.dd-auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.dd-auth-tab {
  flex: 1;
  padding: 8px;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  background: var(--dd-bg);
  cursor: pointer;
  color: var(--dd-text);
}
.dd-auth-tab.is-active {
  background: var(--dd-primary);
  border-color: var(--dd-primary);
  color: #fff;
}
.dd-captcha-row {
  display: flex;
  gap: 10px;
  align-items: center;
}
.dd-captcha-row input {
  flex: 1;
}
.dd-remember-row,
.dd-remember-row label {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 8px;
  font-size: 13px;
  cursor: pointer;
  margin: 0;
  line-height: 1.4;
}
.dd-remember-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin: 0;
  flex-shrink: 0;
  vertical-align: middle;
}
.dd-stars {
  color: #f59e0b;
  letter-spacing: 2px;
  font-size: 14px;
  margin-right: 8px;
}
.dd-pan-box {
  margin: 20px 0;
  padding: 16px;
  background: var(--dd-primary-soft);
  border-radius: var(--dd-radius);
}
.dd-pan-item {
  margin: 8px 0;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.dd-pan-code {
  font-size: 13px;
  color: var(--dd-text-muted);
}
.dd-user-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.dd-user-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--dd-border);
}

/* 列表：矮图 / 高图 */
.dd-post-thumb--short {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.dd-post-thumb--short img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.dd-post-thumb--tall {
  aspect-ratio: 3 / 4;
  overflow: hidden;
}
.dd-post-thumb--tall img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.dd-post-tall {
  max-width: 280px;
}

/* 横图 / 单图（1.5.10 样式：纯图 + 底部标题） */
.dd-post-landscape {
  border-radius: var(--dd-radius, 10px);
  overflow: hidden;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  box-shadow: var(--dd-shadow);
  margin-bottom: 16px;
}
.dd-post-landscape-link {
  display: block;
  position: relative;
  color: #fff;
  text-decoration: none;
}
.dd-post-landscape-img {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  margin: 0 !important;
  background: var(--dd-primary-soft, #eff6ff);
}
.dd-post-landscape-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  background: linear-gradient(transparent, rgba(0,0,0,.65));
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.dd-post-landscape-link:hover .dd-post-landscape-caption,
.dd-post-landscape-link:focus .dd-post-landscape-caption {
  opacity: 1;
}

/* 无权限列表：与 .dd-post-short-row 完全一致，只是没有 .dd-post-thumb */
.dd-post-locked.dd-post-item {
  /* 沿用 .dd-post-item 原有边框、内边距、背景 */
}
.dd-post-locked .dd-post-body {
  flex: 1;
  min-width: 0;
  width: 100%;
}
.dd-locked-tip {
  /* 单页提示可保留红色；列表用普通 excerpt 类 */
  color: var(--dd-danger);
}

/* 登录注册弹窗微调 */
.dd-auth-dialog {
  position: relative;
  padding-top: 48px !important;
}
.dd-auth-close {
  position: absolute !important;
  top: 10px !important;
  right: 10px !important;
  width: 36px !important;
  height: 36px !important;
  border-radius: 8px !important;
  border: 1px solid var(--dd-border) !important;
  background: var(--dd-card) !important;
  color: var(--dd-text) !important;
  font-size: 18px !important;
  line-height: 1 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  cursor: pointer !important;
  z-index: 2;
  box-shadow: none !important;
}
.dd-auth-close:hover {
  background: var(--dd-primary-soft) !important;
  color: var(--dd-primary) !important;
}
.dd-auth-tabs {
  margin-top: 4px;
}
.dd-remember-row {
  margin: 4px 0 16px !important;
  padding: 0 !important;
}
.dd-auth-form .dd-form-group.dd-remember-row {
  margin-bottom: 18px !important;
}
.dd-auth-form .dd-btn[type="submit"],
.dd-auth-form button.dd-btn-primary {
  margin-top: 4px;
}

/* 记住我：主题色自定义勾选符号 */
.dd-remember-row input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px !important;
  height: 18px !important;
  margin: 0 !important;
  border: 2px solid var(--dd-border);
  border-radius: 4px;
  background: var(--dd-card);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}
.dd-remember-row input[type="checkbox"]:checked {
  background: var(--dd-primary);
  border-color: var(--dd-primary);
}
.dd-remember-row input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 4px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}



/* ============================================================
   搜索弹出层：贴在顶栏正下方（不被完全挡住），上直角下圆角
   ============================================================ */
.dd-header {
  position: sticky;
  top: 0;
  z-index: 200 !important;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.08);
}
body.dd-search-open .dd-header {
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
}

.dd-search-overlay {
  position: fixed !important;
  left: 0 !important;
  right: 0 !important;
  /* 从顶栏底部开始，避免整块被导航挡住 */
  top: var(--dd-header-h, 60px) !important;
  bottom: auto !important;
  z-index: 190 !important;
  display: none !important;
  background: transparent !important;
  backdrop-filter: none !important;
  padding: 0 !important;
  pointer-events: none;
}
.dd-search-overlay.is-open {
  display: block !important;
  pointer-events: auto;
}

/* 面板紧贴顶栏下沿，仅下方圆角 */
.dd-search-panel {
  max-width: var(--dd-max, 1100px) !important;
  width: 100% !important;
  margin: 0 auto !important;
  padding: 24px 20px 26px !important;
  background: var(--dd-card, #fff) !important;
  border: 1px solid var(--dd-border, #e2e8f0) !important;
  border-top: none !important;
  border-radius: 0 0 5px 5px !important;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.1) !important;
}

.dd-search-overlay-form {
  display: flex !important;
  align-items: center !important;
  gap: 0 !important;
  width: 100% !important;
  max-width: none !important;
  padding: 0 !important;
  margin: 0 !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
}

.dd-search-overlay-form input[type="search"] {
  flex: 1 !important;
  min-width: 0 !important;
  height: 44px !important;
  padding: 0 16px !important;
  font-size: 15px !important;
  border: 1px solid var(--dd-border, #e2e8f0) !important;
  border-right: none !important;
  border-radius: 8px 0 0 8px !important;
  background: var(--dd-bg, #f8fafc) !important;
  color: var(--dd-text) !important;
  outline: none !important;
  box-shadow: none !important;
}
.dd-search-overlay-form input[type="search"]:focus {
  border-color: var(--dd-primary) !important;
}

.dd-search-submit {
  height: 44px !important;
  min-width: 100px !important;
  padding: 0 20px !important;
  margin: 0 !important;
  border: 1px solid var(--dd-primary) !important;
  border-radius: 0 8px 8px 0 !important;
  background: var(--dd-primary) !important;
  color: #fff !important;
  font-size: 14px !important;
  cursor: pointer !important;
  flex-shrink: 0 !important;
  box-shadow: none !important;
}
.dd-search-submit:hover {
  filter: brightness(1.05);
}

.dd-search-close {
  position: static !important;
  width: auto !important;
  height: auto !important;
  margin: 0 0 3px 14px !important;
  padding: 0 !important;
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
  color: var(--dd-text-muted, #64748b) !important;
  font-size: 28px !important;
  font-weight: 300 !important;
  line-height: 1 !important;
  cursor: pointer !important;
  flex-shrink: 0 !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
}
.dd-search-close:hover {
  color: var(--dd-text) !important;
  background: transparent !important;
}

.dd-auth-close {
  position: absolute !important;
  top: 8px !important;
  right: 10px !important;
  width: auto !important;
  height: auto !important;
  padding: 4px !important;
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
  color: var(--dd-text-muted) !important;
  font-size: 26px !important;
  font-weight: 300 !important;
  line-height: 1 !important;
  cursor: pointer !important;
}
.dd-auth-close:hover {
  color: var(--dd-text) !important;
  background: transparent !important;
}

.dd-remember-row input[type="checkbox"] {
  appearance: none !important;
  -webkit-appearance: none !important;
  width: 14px !important;
  height: 14px !important;
  margin: 0 !important;
  border: 1.5px solid var(--dd-border) !important;
  border-radius: 3px !important;
  background: var(--dd-card) !important;
  position: relative !important;
  flex-shrink: 0 !important;
  cursor: pointer !important;
}
.dd-remember-row input[type="checkbox"]:checked {
  background: var(--dd-primary) !important;
  border-color: var(--dd-primary) !important;
}
.dd-remember-row input[type="checkbox"]:checked::after {
  content: "" !important;
  position: absolute !important;
  left: 50% !important;
  top: 45% !important;
  width: 4px !important;
  height: 8px !important;
  border: solid #fff !important;
  border-width: 0 2px 2px 0 !important;
  transform: translate(-50%, -55%) rotate(45deg) !important;
}


/* ===== 列表小修正 ===== */
.dd-post-item.dd-post-short-row {
  display: flex;
  align-items: stretch;
  gap: 16px;
}
.dd-post-item.dd-post-short-row .dd-post-thumb {
  flex: 0 0 200px;
  width: 200px;
  align-self: stretch;
  display: block;
  overflow: hidden;
  border-radius: 8px;
  background: var(--dd-border);
}
.dd-post-item.dd-post-short-row .dd-post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 100%;
}
.dd-post-item.dd-post-short-row .dd-post-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.dd-post-excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

/* 网格 4:3 */
.dd-post-thumb--43 {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 8px;
  background: var(--dd-border);
}
.dd-post-thumb--43 img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.dd-layout-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

/* 封面：竖图 3:4，标题摘要默认隐藏，悬停居中显示 */
.dd-layout-cover {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.dd-post-cover-link {
  display: block;
  aspect-ratio: 3 / 4;
  border-radius: 10px;
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
  color: #fff;
  text-decoration: none;
}
.dd-post-cover-mask {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px 16px;
  background: rgba(0, 0, 0, 0.55);
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.dd-post-cover-link:hover .dd-post-cover-mask,
.dd-post-cover-link:focus .dd-post-cover-mask {
  opacity: 1;
}
.dd-post-cover-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.35;
  max-width: 100%;
}
.dd-post-cover-excerpt {
  font-size: 13px;
  opacity: .95;
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 100%;
}

/* 纯标题：沿用 .dd-post-title-only 的 padding:12px 14px，不在此覆盖 */
.dd-layout-title_full .dd-post-title-only,
.dd-layout-title .dd-post-title-only {
  /* 仅多列布局时条目间距由 grid gap 负责 */
}
.dd-title-cols-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}
.dd-title-cols-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px 20px;
}

/* 三图：取消默认图文列表的 180px 栅格，横向占满 */
.dd-post-item.dd-post-triple,
.dd-post-triple {
  display: block !important;
  grid-template-columns: none !important;
  width: 100% !important;
  max-width: 100%;
  border-radius: var(--dd-radius, 10px);
  overflow: hidden;
  background: transparent;
  border: none;
  box-shadow: none;
  margin-bottom: 16px;
  padding: 0;
}
.dd-triple-wrap {
  display: block;
  position: relative;
  width: 100%;
  text-decoration: none;
  color: #fff;
}
.dd-triple-imgs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  width: 100%;
  margin: 0;
  box-sizing: border-box;
}
.dd-triple-cell {
  display: block;
  width: 100%;
  min-width: 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--dd-border);
}
.dd-triple-imgs img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  vertical-align: top;
}
.dd-triple-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  background: linear-gradient(transparent, rgba(0,0,0,.65));
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  line-height: 1.4;
  opacity: 0;
  transition: opacity 0.25s ease;
  pointer-events: none;
}
.dd-triple-wrap:hover .dd-triple-caption,
.dd-triple-wrap:focus .dd-triple-caption {
  opacity: 1;
}


/* 列表视频 */
.dd-list-video {
  width: 100%;
  max-height: 360px;
  border-radius: 8px;
  background: #000;
  margin-bottom: 10px;
}

/* 课程目录左对齐 */
.dd-course-ol {
  margin-left: 0;
  padding-left: 5px;
}
.dd-lesson-side .dd-course-nav {
  margin: 0;
  padding: 0;
  background: transparent;
}


/* 专题卡片 */
.dd-series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.dd-series-card {
  display: block;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  text-decoration: none;
  color: inherit;
  transition: box-shadow .2s;
}
.dd-series-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.dd-series-card-cover {
  aspect-ratio: 16/10;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-border);
}
.dd-series-card-cover--empty {
  background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
}



/* 代码块 / Prism */
.dd-single {
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
}
.dd-content {
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
}
.dd-content pre,
.dd-content pre.wp-block-code,
.dd-single .dd-content pre,
.dd-content pre[class*="language-"] {
  background: #1e1e2e !important;
  color: #cdd6f4;
  padding: 16px 18px !important;
  border-radius: 8px;
  overflow-x: auto !important;
  overflow-y: hidden;
  max-width: 100% !important;
  width: auto !important;
  box-sizing: border-box !important;
  font-size: 13.5px;
  line-height: 1.55;
  margin: 1.25em 0;
  display: block;
  white-space: pre;
  word-wrap: normal;
  -webkit-overflow-scrolling: touch;
}
.dd-content pre code,
.dd-content code[class*="language-"],
.dd-content pre[class*="language-"] code {
  background: transparent !important;
  color: inherit;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: inherit;
  padding: 0 !important;
  white-space: pre !important;
  word-break: normal !important;
  overflow-wrap: normal !important;
  display: block;
  max-width: none; /* 让 pre 出现横向滚动，而不是撑开整页 */
}
.dd-content :not(pre) > code {
  background: var(--dd-primary-soft, #eff6ff);
  color: var(--dd-primary, #2563eb);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

.dd-series-page.dd-cat-page {
  /* 已在 header 的 .dd-container 内，与首页/顶栏对齐 */
  max-width: none;
  width: 100%;
  margin: 0;
  padding-left: 0;
  padding-right: 0;
  box-sizing: border-box;
}


/* ===== 全部专题列表（参考 DUX topic-items） ===== */
.dd-topic-items-title {
  font-size: 22px;
  margin: 0 0 20px;
  font-weight: 700;
}
.dd-topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.dd-topic-item {
  background: var(--dd-card, #fff);
  border: 1px solid var(--dd-border, #e5e7eb);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.dd-topic-pic {
  display: block;
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  color: #fff;
  text-decoration: none;
}
.dd-topic-pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}
.dd-topic-pic:hover img {
  transform: scale(1.05);
}
.dd-topic-info {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 14px 14px;
  background: linear-gradient(transparent, rgba(0,0,0,.72));
}
.dd-topic-info h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  line-height: 1.35;
}
.dd-topic-count {
  display: inline-block;
  font-style: normal;
  font-size: 12px;
  background: rgba(255,255,255,.2);
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
}
.dd-topic-desc {
  margin-top: 6px;
  font-size: 13px;
  opacity: .9;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dd-topic-posts {
  padding: 12px 14px 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.dd-topic-posts ol {
  list-style: none;
  margin: 0 0 10px;
  padding: 0;
  flex: 1;
}
.dd-topic-posts li {
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--dd-border, #eee);
}
.dd-topic-posts li:last-child {
  border-bottom: none;
}
.dd-topic-post {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  text-decoration: none;
  color: var(--dd-text);
}
.dd-topic-post:hover {
  color: var(--dd-primary);
}
.dd-topic-post img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
  background: var(--dd-border);
}
.dd-topic-post span {
  flex: 1;
  font-size: 14px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dd-topic-more {
  display: inline-block;
  font-size: 13px;
  color: var(--dd-primary);
  text-decoration: none;
  margin-top: 4px;
}
.dd-topic-more:hover {
  text-decoration: underline;
}
.dd-topic-empty {
  padding: 12px 0;
  font-size: 13px;
  color: var(--dd-text-muted, #94a3b8);
}
@media (max-width: 640px) {
  .dd-topic-list {
    grid-template-columns: 1fr;
  }
}


/* ===== 评论：每条独立分块，回复引用原评 ===== */
.dd-comments {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--dd-border);
}
.dd-comments-title {
  font-size: 18px;
  margin: 0 0 16px;
}
.dd-comment-list,
.dd-comment-list .children {
  list-style: none;
  margin: 0;
  padding: 0;
}
/* 子回复不再缩进成树，改为同级独立块 */
.dd-comment-list .children {
  margin-left: 0;
  padding-left: 0;
}
.dd-comment-card {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}
.dd-comment-block {
  background: var(--dd-card, #fff);
  border: 1px solid var(--dd-border, #e5e7eb);
  border-radius: var(--dd-radius, 10px);
  padding: 14px 16px;
  box-shadow: var(--dd-shadow);
}
.dd-comment-reply .dd-comment-block {
  border-left: 3px solid var(--dd-primary, #2563eb);
}
.dd-comment-quote {
  background: var(--dd-primary-soft, #eff6ff);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--dd-text-muted, #64748b);
  line-height: 1.5;
}
.dd-comment-quote-label {
  display: block;
  font-weight: 600;
  color: var(--dd-text);
  margin-bottom: 4px;
}
.dd-comment-quote-text {
  display: block;
}
.dd-comment-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}
.dd-comment-avatar img {
  border-radius: 50%;
  display: block;
}
.dd-comment-author {
  font-weight: 600;
  display: block;
}
.dd-comment-time {
  font-size: 12px;
  color: var(--dd-text-muted);
}
.dd-comment-body {
  font-size: 14px;
  line-height: 1.65;
  word-break: break-word;
}
.dd-comment-body p:last-child {
  margin-bottom: 0;
}
.dd-comment-footer {
  margin-top: 10px;
  font-size: 13px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.dd-comment-footer a {
  color: var(--dd-primary);
}
.dd-comment-form {
  margin-top: 20px;
  padding: 16px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: var(--dd-radius, 10px);
}
/* 隐藏默认「发表评论」标题与取消回复条（若主题外仍输出） */
.dd-comments #reply-title,
.dd-comments .comment-reply-title {
  display: none !important;
}
.dd-comment-form textarea {
  width: 100%;
  min-height: 72px;
  height: 88px;
  padding: 10px 12px;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  background: var(--dd-bg, #fff);
  box-sizing: border-box;
  resize: vertical;
  font: inherit;
}
.dd-comment-form input[type="text"],
.dd-comment-form input[type="email"],
.dd-comment-form input[type="url"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--dd-border);
  border-radius: 8px;
  background: var(--dd-bg, #fff);
  box-sizing: border-box;
  font: inherit;
}
.dd-comment-form .comment-form-cookies-consent,
.dd-comment-form .comment-notes,
.dd-comment-form label {
  display: none !important;
}
.dd-comment-fields-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin: 0 0 12px;
}
.dd-comment-field {
  margin: 0 0 12px;
}
.dd-comment-field-author,
.dd-comment-field-email,
.dd-comment-field-url {
  margin-bottom: 0;
}
/* 将三个字段排成一行：依赖 WordPress 输出顺序，用 flex 包一层较难，改用 grid 挂在 form 上 */
.dd-comment-form {
  display: flex;
  flex-direction: column;
}
.dd-comment-form .dd-comment-field-comment {
  order: 1;
}
.dd-comment-form .dd-comment-field-author {
  order: 2;
}
.dd-comment-form .dd-comment-field-email {
  order: 2;
}
.dd-comment-form .dd-comment-field-url {
  order: 2;
}
.dd-comment-form .form-submit {
  order: 3;
  margin-top: 12px;
  margin-bottom: 0;
}
.dd-comment-form .comment-form-author,
.dd-comment-form .comment-form-email,
.dd-comment-form .comment-form-url {
  display: none;
}
/* 一行三列：作者/邮箱/网址 */
@media (min-width: 640px) {
  .dd-comment-form {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px 12px;
    align-items: start;
  }
  .dd-comment-form .dd-comment-field-comment {
    grid-column: 1 / -1;
    order: 0;
    margin: 0;
  }
  .dd-comment-form .dd-comment-field-author,
  .dd-comment-form .dd-comment-field-email,
  .dd-comment-form .dd-comment-field-url {
    margin: 0;
  }
  .dd-comment-form .form-submit {
    grid-column: 1 / -1;
    margin-top: 4px;
  }
}
.dd-comments-closed {
  color: var(--dd-text-muted);
}


/* ===== 散文书架 / 小说封面网格 ===== */
.dd-essay-grid,
.dd-novel-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, 1fr);
}
.dd-essay-grid.dd-cols-5,
.dd-novel-grid.dd-cols-5 { grid-template-columns: repeat(5, 1fr); }
.dd-essay-grid.dd-cols-6,
.dd-novel-grid.dd-cols-6 { grid-template-columns: repeat(6, 1fr); }
.dd-essay-grid.dd-cols-3,
.dd-novel-grid.dd-cols-3 { grid-template-columns: repeat(3, 1fr); }

.dd-essay-card,
.dd-novel-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--dd-text);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  transition: box-shadow .2s, transform .2s;
}
.dd-essay-card:hover,
.dd-novel-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.1);
  transform: translateY(-2px);
  color: var(--dd-text);
}
.dd-essay-cover,
.dd-novel-cover {
  aspect-ratio: 3 / 4;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-border);
}
/* 标题+摘要：叠在封面下部，默认隐藏，悬停显示，白底 */
.dd-essay-card-body,
.dd-novel-card-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 10px 12px 12px;
  background: #fff;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .2s, transform .2s, visibility .2s;
  pointer-events: none;
}
.dd-essay-card:hover .dd-essay-card-body,
.dd-novel-card:hover .dd-novel-card-body {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
html.dd-night .dd-essay-card-body,
html.dd-night .dd-novel-card-body {
  background: var(--dd-card);
}
.dd-essay-card-title,
.dd-novel-card-title {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 4px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dd-essay-card-desc,
.dd-novel-card-desc,
.dd-novel-card-meta {
  margin: 0;
  font-size: 12px;
  color: var(--dd-text-muted);
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dd-novel-card-meta { margin-bottom: 2px; }

@media (max-width: 1100px) {
  .dd-essay-grid.dd-cols-6,
  .dd-novel-grid.dd-cols-6,
  .dd-essay-grid.dd-cols-5,
  .dd-novel-grid.dd-cols-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 720px) {
  .dd-essay-grid,
  .dd-novel-grid,
  .dd-essay-grid.dd-cols-3,
  .dd-novel-grid.dd-cols-3,
  .dd-essay-grid.dd-cols-5,
  .dd-novel-grid.dd-cols-5,
  .dd-essay-grid.dd-cols-6,
  .dd-novel-grid.dd-cols-6 {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}
@media (max-width: 420px) {
  .dd-essay-grid,
  .dd-novel-grid {
    grid-template-columns: 1fr;
  }
}

/* 详情页目录多列（仅主区，不含右侧课时/章节侧栏） */
.dd-course-curriculum-wrap.dd-curr-cols-2 .dd-course-ol,
.dd-course-curriculum-wrap.dd-curr-cols-3 .dd-course-ol {
  display: grid;
  gap: 6px 16px;
  list-style: none;
  padding-left: 5px;
  margin: 0;
  counter-reset: dd-curr;
}
.dd-course-curriculum-wrap.dd-curr-cols-2 .dd-course-ol { grid-template-columns: 1fr 1fr; }
.dd-course-curriculum-wrap.dd-curr-cols-3 .dd-course-ol { grid-template-columns: 1fr 1fr 1fr; }
.dd-course-curriculum-wrap.dd-curr-cols-2 .dd-course-li,
.dd-course-curriculum-wrap.dd-curr-cols-3 .dd-course-li {
  list-style: none;
}
@media (max-width: 860px) {
  .dd-course-curriculum-wrap.dd-curr-cols-2 .dd-course-ol,
  .dd-course-curriculum-wrap.dd-curr-cols-3 .dd-course-ol {
    grid-template-columns: 1fr;
  }
}

/* 课时/章节右侧目录：随视口高度，超出滚动 */
.dd-lesson-side {
  position: sticky;
  top: 72px;
  max-height: calc(100vh - 88px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.dd-lesson-side .dd-course-nav {
  margin: 0;
  padding: 0 0 8px;
  background: transparent;
}
@media (max-width: 860px) {
  .dd-lesson-side {
    position: static;
    max-height: min(50vh, 360px);
    overflow-y: auto;
  }
}
.dd-essay-hero {
  margin: 0 0 20px;
  border-radius: 10px;
  overflow: hidden;
}
.dd-essay-hero img {
  width: 100%;
  height: auto;
  display: block;
}
.dd-chapter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--dd-border);
  justify-content: space-between;
}

/* 侧栏目录标题单行省略，完整标题见 title */
.dd-course-nav a {
  display: inline-block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  vertical-align: bottom;
}
.dd-course-li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
}
.dd-course-li a {
  flex: 1;
  min-width: 0;
}
.dd-course-nav h3 { display: none; }


/* ===== 模块化首页 ===== */
.dd-home-section {
  margin-bottom: 32px;
}
.dd-home-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--dd-border);
}
.dd-home-section-title,
.dd-home-side-title {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 8px;
}
.dd-home-section-title::before,
.dd-home-side-title::before {
  content: "";
  width: 3px;
  height: 16px;
  border-radius: 2px;
  background: var(--dd-primary);
  flex: 0 0 auto;
}
.dd-home-more {
  font-size: 13px;
  color: var(--dd-text-muted);
  white-space: nowrap;
  text-decoration: none;
}
.dd-home-more:hover { color: var(--dd-primary); }
.dd-home-slider-wrap {
  margin-bottom: 28px;
}
.dd-home-slider {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--dd-border);
  aspect-ratio: 21 / 9;
  max-height: 420px;
}
.dd-home-slider-track {
  position: relative;
  width: 100%;
  height: 100%;
}
.dd-home-slide {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  color: #fff;
  text-decoration: none;
}
.dd-home-slide.is-active {
  opacity: 1;
  pointer-events: auto;
  z-index: 1;
}
.dd-home-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.dd-home-slide-cap {
  display: none !important; /* 幻灯不显示标题 */
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px 20px 28px;
  background: linear-gradient(transparent, rgba(0,0,0,.72));
  font-size: 18px;
  font-weight: 600;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .25s ease, transform .25s ease;
  pointer-events: none;
}
/* 幻灯左右：仅箭头，无渐变，悬停显示，箭头悬停跟主题色 */
.dd-home-slider-btn {
  position: absolute;
  top: 50%;
  z-index: 3;
  width: 48px;
  height: 72px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.92);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  opacity: 0;
  transform: translateY(-50%);
  transition: opacity .25s ease, color .15s ease;
  -webkit-appearance: none;
  appearance: none;
}
.dd-home-slider-btn .dd-icon-arrow {
  display: block;
  width: 28px;
  height: 28px;
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.35));
  pointer-events: none;
}
.dd-home-slider-btn:hover {
  color: var(--dd-primary, #2563eb);
  background: transparent;
}
.dd-home-slider-prev { left: 0; }
.dd-home-slider-next { right: 0; }
.dd-home-slider-dots {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  z-index: 2;
  display: flex;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  transition: opacity .25s ease;
}
.dd-home-slider-dots button {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  padding: 0;
  background: rgba(255,255,255,.5);
  cursor: pointer;
  transition: background .15s, transform .15s;
}
.dd-home-slider-dots button.is-active {
  background: #fff;
  transform: scale(1.2);
}
/* 鼠标移入幻灯才显示标题、箭头、圆点 */
/* 仅悬停显示；不用 focus-within，避免点按钮后焦点残留导致箭头不消失 */
.dd-home-slider:hover .dd-home-slide-cap {
  display: none !important; /* 幻灯不显示标题 */
  opacity: 1;
  transform: translateY(0);
}
.dd-home-slider:hover .dd-home-slider-btn {
  opacity: 1;
  transform: translateY(-50%);
}
.dd-home-slider:hover .dd-home-slider-dots {
  opacity: 1;
}
/* 无精确悬停的设备（手机）保持可点 */
@media (hover: none) {
  .dd-home-slide-cap,
  .dd-home-slider-btn,
  .dd-home-slider-dots {
    opacity: 1;
    transform: none;
  }
  .dd-home-slider-btn {
    transform: translateY(-50%);
    opacity: 0.85;
  }
}
.dd-home-entries {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 12px;
}
.dd-home-entry {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 8px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--dd-text);
  transition: border-color .15s, box-shadow .15s;
}
.dd-home-entry:hover {
  border-color: var(--dd-primary);
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
  color: var(--dd-text);
}
.dd-home-entry-icon {
  font-size: 22px;
  line-height: 1;
}
.dd-home-entry-title {
  font-size: 13px;
  font-weight: 600;
  text-align: center;
}
.dd-home-topic-list {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}
.dd-home-topic-list .dd-topic-posts {
  display: none;
}
@media (max-width: 640px) {
  .dd-home-slider {
    aspect-ratio: 16 / 10;
    max-height: 240px;
  }
  .dd-home-slide-cap {
  display: none !important; /* 幻灯不显示标题 */
    font-size: 15px;
    padding: 12px 14px;
  }
}


/* ===== 首页：左幻灯 + 右热门 / 推荐带 / 双列小卡 ===== */
.dd-home-hero-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 16px;
  align-items: stretch;
}
.dd-home-hero-main {
  min-width: 0;
}
.dd-home-hero-main .dd-home-slider {
  height: 100%;
  min-height: 280px;
  max-height: 380px;
  aspect-ratio: auto;
}
.dd-home-slider--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dd-text-muted);
  min-height: 240px;
}
.dd-home-hero-side {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: 12px;
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.dd-home-side-title {
  margin: 0 0 10px;
}
.dd-home-side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  overflow: auto;
}
.dd-home-side-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--dd-border);
  font-size: 13px;
  line-height: 1.4;
}
.dd-home-side-list li:last-child {
  border-bottom: none;
}
.dd-home-side-rank {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 4px;
  background: var(--dd-primary-soft, #eff6ff);
  color: var(--dd-primary);
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.dd-home-side-list li:nth-child(-n+3) .dd-home-side-rank {
  background: var(--dd-primary);
  color: #fff;
}
.dd-home-side-list a {
  color: var(--dd-text);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
  flex: 1;
}
.dd-home-side-list a:hover {
  color: var(--dd-primary);
}
/* 推荐带：通栏 4 卡宽度，按钮悬浮不占宽 */
.dd-home-reco-wrap {
  position: relative;
  overflow: visible;
}
.dd-home-reco-viewport {
  width: 100%;
  overflow: hidden;
}
.dd-home-reco-track {
  display: flex;
  gap: 12px;
  transition: transform .35s ease;
  will-change: transform;
}
.dd-home-reco-card {
  /* 与「最新」双列里 2 列小卡同宽：全宽约 1/4（扣 gap） */
  flex: 0 0 calc((100% - 36px) / 4);
  max-width: calc((100% - 36px) / 4);
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  text-decoration: none;
  color: var(--dd-text);
  transition: box-shadow .2s;
  box-sizing: border-box;
}
.dd-home-reco-card:hover {
  box-shadow: 0 8px 20px rgba(0,0,0,.08);
  color: var(--dd-text);
}
.dd-home-reco-cover {
  display: block;
  aspect-ratio: 16 / 10;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-border);
}
.dd-home-reco-body {
  padding: 8px 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.dd-home-reco-title {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dd-home-reco-desc {
  font-size: 12px;
  color: var(--dd-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dd-home-reco-btn {
  position: absolute;
  top: 50%;
  z-index: 5;
  width: 48px;
  height: 72px;
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 0;
  background: transparent;
  /* 推荐带背景偏浅，用深色箭头 */
  color: rgba(30, 41, 59, 0.75);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: none;
  transform: translateY(-50%);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, color .15s ease;
  -webkit-appearance: none;
  appearance: none;
}
.dd-home-reco-btn .dd-icon-arrow {
  display: block;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(255, 255, 255, 0.9));
  pointer-events: none;
}
.dd-home-reco-wrap:hover .dd-home-reco-btn {
  opacity: 1;
  pointer-events: auto;
}
.dd-home-reco-prev { left: 0; }
.dd-home-reco-next { right: 0; }
.dd-home-reco-btn:hover {
  color: var(--dd-primary, #2563eb);
  background: transparent;
}
/* 两侧渐变高亮（随按钮出现） */




/* 到头一侧不画渐变 */
.dd-home-reco-wrap.is-start:hover::before,
.dd-home-reco-wrap.is-start:focus-within::before {
  opacity: 0;
}
.dd-home-reco-wrap.is-end:hover::after,
.dd-home-reco-wrap.is-end:focus-within::after {
  opacity: 0;
}
@media (max-width: 900px) {
  .dd-home-reco-card {
    flex-basis: calc((100% - 12px) / 2);
    max-width: calc((100% - 12px) / 2);
  }
}
@media (max-width: 520px) {
  .dd-home-reco-card {
    flex-basis: 78%;
    max-width: 78%;
  }
}
@media (hover: none) {
  .dd-home-reco-btn.is-visible {
    opacity: 1;
    pointer-events: auto;
  }
  .dd-home-reco-wrap::before,
  
}
.dd-home-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.dd-home-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.dd-home-mini {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--dd-text);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  transition: border-color .15s, box-shadow .15s;
}
.dd-home-mini:hover {
  border-color: var(--dd-primary);
  box-shadow: 0 4px 12px rgba(0,0,0,.06);
  color: var(--dd-text);
}
.dd-home-mini-cover {
  display: block;
  aspect-ratio: 16 / 10;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-border);
}
.dd-home-mini-title {
  display: block;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 900px) {
  .dd-home-hero-grid {
    grid-template-columns: 1fr;
  }
  .dd-home-hero-main .dd-home-slider {
    max-height: 280px;
    min-height: 200px;
    aspect-ratio: 16 / 9;
  }
  .dd-home-split {
    grid-template-columns: 1fr;
  }

}
@media (max-width: 520px) {
  .dd-home-mini-grid {
    grid-template-columns: 1fr 1fr;
  }
}



/* 广告位 */
.dd-ad {
  margin: 16px 0 24px;
  text-align: center;
  overflow: hidden;
}
.dd-ad img {
  max-width: 100%;
  height: auto;
}


/* 全部课程列表：下方课时预览（与课程目录同款序号，无缩略图） */
.dd-course-list-preview .dd-course-ol {
  margin: 0 0 10px;
  padding-left: 0;
}
.dd-course-list-preview .dd-course-li {
  padding: 6px 0;
  border-bottom: 1px solid var(--dd-border);
  gap: 8px;
}
.dd-course-list-preview .dd-course-li:last-child {
  border-bottom: none;
}
.dd-course-list-preview .dd-course-num {
  width: 20px;
  height: 20px;
  font-size: 11px;
}
.dd-course-list-preview .dd-course-li a {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  color: var(--dd-text);
}
.dd-course-list-preview .dd-course-li a:hover {
  color: var(--dd-primary);
}


/* 评论区不显示「以 xxx 身份登录」 */
.dd-comments .logged-in-as,
.dd-comment-form .logged-in-as {
  display: none !important;
}


/* ========== 长文目录 TOC：左侧悬浮 ========== */
.dd-toc {
  position: fixed;
  left: auto;
  right: calc(100vw - var(--dd-toc-left, 16px));
  top: var(--dd-toc-top, 76px);
  z-index: 90;
  width: 40px;
  max-height: calc(100vh - var(--dd-header-h, 60px) - 32px);
  margin: 0;
  padding: 0;
  border: 1px solid var(--dd-border, #e2e8f0);
  border-right: none;
  border-radius: var(--dd-radius, 10px) 0 0 var(--dd-radius, 10px);
  background: var(--dd-card, #fff);
  box-shadow: var(--dd-shadow, 0 4px 16px rgba(15, 23, 42, 0.08));
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: width .2s ease;
}
.dd-toc:hover,
.dd-toc.is-open {
  width: 260px;
}
.dd-toc-toggle {
  width: 100%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 0;
  padding: 12px 8px;
  border: none;
  background: var(--dd-primary-soft, #eff6ff);
  color: var(--dd-text, #0f172a);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  font-family: inherit;
  user-select: none;
  -webkit-user-select: none;
  caret-color: transparent;
}
.dd-toc-toggle:hover,
.dd-toc-toggle:focus {
  color: var(--dd-primary, #2563eb);
  outline: none;
}
.dd-toc-title {
  display: block;
  writing-mode: vertical-rl;
  letter-spacing: 0.2em;
  line-height: 1.2;
  pointer-events: none;
}
.dd-toc:hover .dd-toc-title,
.dd-toc.is-open .dd-toc-title {
  writing-mode: horizontal-tb;
  letter-spacing: 0;
}
.dd-toc-list,
.dd-toc-sub {
  margin: 0;
  padding: 8px 12px 14px;
  list-style: none;
}
.dd-toc-sub {
  padding: 2px 0 2px 12px;
}
.dd-toc-list {
  display: none;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}
.dd-toc:hover .dd-toc-list,
.dd-toc.is-open .dd-toc-list {
  display: block;
}
.dd-toc-item {
  margin: 0;
  padding: 5px 0;
  line-height: 1.4;
  list-style: none;
}
.dd-toc-item::marker,
.dd-toc-item::before {
  content: none;
  display: none;
}
.dd-toc-item a {
  color: var(--dd-text, #0f172a);
  text-decoration: none;
  font-size: 13px;
  display: block;
  border-left: 2px solid transparent;
  padding: 2px 4px 2px 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dd-toc-item a:hover,
.dd-toc-item a.is-active {
  color: var(--dd-primary, #2563eb);
  border-left-color: var(--dd-primary, #2563eb);
}
.dd-toc-l3 a {
  font-size: 12px;
  color: var(--dd-text-muted, #64748b);
}
.dd-content h2[id],
.dd-content h3[id] {
  scroll-margin-top: calc(var(--dd-header-h, 72px) + 12px);
}
@media (max-width: 900px) {
  .dd-toc {
    top: auto;
    bottom: 88px;
    left: 10px;
    width: auto;
    max-width: calc(100vw - 20px);
    max-height: 50vh;
    border: 1px solid var(--dd-border, #e2e8f0);
    border-radius: var(--dd-radius, 10px);
  }
  .dd-toc-title {
    writing-mode: horizontal-tb;
    letter-spacing: 0;
  }
  .dd-toc:hover,
  .dd-toc.is-open {
    width: min(280px, calc(100vw - 20px));
  }
}


/* ========== 阅读进度条 ========== */
.dd-read-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 200;
  pointer-events: none;
  background: transparent;
}
.dd-read-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--dd-primary, #2563eb);
  border-radius: 0 2px 2px 0;
  transition: width 0.08s linear;
  box-shadow: 0 0 6px color-mix(in srgb, var(--dd-primary, #2563eb) 40%, transparent);
}
/* 有顶栏时贴在顶栏下沿（用 JS 同步 top）；无 JS 时仍贴顶 */
body.admin-bar .dd-read-progress {
  top: 32px;
}
@media screen and (max-width: 782px) {
  body.admin-bar .dd-read-progress {
    top: 46px;
  }
}


/* 已读标记 */
.dd-course-li.is-read > a {
  color: var(--dd-text-muted, #64748b);
}
.dd-read-badge {
  display: inline-block;
  margin-left: 4px;
  padding: 0 6px;
  font-size: 11px;
  line-height: 1.6;
  border-radius: 4px;
  background: var(--dd-primary-soft, #eff6ff);
  color: var(--dd-primary, #2563eb);
  vertical-align: middle;
  white-space: nowrap;
}

/* 夜间：代码块 / 灯箱对比度 */
html.dd-night .dd-content pre,
html.dd-night .dd-content pre.wp-block-code,
html.dd-night .dd-content pre[class*="language-"] {
  background: #0b1220 !important;
  color: #e2e8f0;
  border: 1px solid rgba(148, 163, 184, 0.18);
}
html.dd-night .dd-code-wrap {
  background: #0b1220;
  border: 1px solid rgba(148, 163, 184, 0.18);
}
html.dd-night .dd-content :not(pre) > code {
  background: rgba(37, 99, 235, 0.18);
  color: #93c5fd;
}
html.dd-night .dd-lightbox {
  background: rgba(2, 6, 23, 0.94);
}
html.dd-night .dd-lightbox-nav {
  color: rgba(226, 232, 240, 0.92);
}
html.dd-night .dd-lightbox-nav:hover {
  color: var(--dd-primary, #60a5fa);
}
html.dd-night .dd-toc {
  background: var(--dd-card);
  border-color: var(--dd-border);
}
html.dd-night .dd-related-link {
  background: var(--dd-card);
}


/* 阶段 C：公告关闭、空状态、投稿状态、小工具 */
.dd-notice {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 40px 8px 16px;
  position: relative;
}
.dd-notice-inner {
  flex: 1;
  text-align: center;
  font-size: 13px;
}
.dd-notice-close {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: inherit;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.7;
  padding: 0;
}
.dd-notice-close:hover { opacity: 1; }

.dd-empty {
  padding: 28px 16px;
  text-align: center;
}
.dd-empty-msg {
  margin: 0 0 14px;
  color: var(--dd-text-muted);
  font-size: 14px;
}
.dd-empty-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.dd-tougao-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.dd-tougao-head h1 { margin: 0; font-size: 22px; }
.dd-tougao-recent {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--dd-border);
}
.dd-tougao-recent h2 {
  font-size: 15px;
  margin: 0 0 12px;
}
.dd-alert {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 14px;
}
.dd-alert-ok {
  background: #ecfdf5;
  color: #047857;
}
.dd-alert-err {
  background: #fef2f2;
  color: #b91c1c;
}
html.dd-night .dd-alert-ok { background: rgba(16,185,129,.15); color: #6ee7b7; }
html.dd-night .dd-alert-err { background: rgba(239,68,68,.15); color: #fca5a5; }

.dd-status {
  display: inline-block;
  padding: 1px 8px;
  font-size: 12px;
  border-radius: 4px;
  vertical-align: middle;
}
.dd-status-publish {
  background: #ecfdf5;
  color: #047857;
}
.dd-status-pending {
  background: #fff7ed;
  color: #c2410c;
}
.dd-status-draft {
  background: #f1f5f9;
  color: #64748b;
}

.dd-widget-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.dd-widget-list li {
  padding: 6px 0;
  border-bottom: 1px dashed var(--dd-border);
  font-size: 13px;
  line-height: 1.4;
}
.dd-widget-list li:last-child { border-bottom: none; }
.dd-tag-cloud a {
  display: inline-block;
  margin: 0 6px 8px 0;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--dd-primary-soft);
  color: var(--dd-primary);
  font-size: 12px !important;
  text-decoration: none;
}
.dd-tag-cloud a:hover {
  background: var(--dd-primary);
  color: #fff;
}
.dd-widget-ad img { max-width: 100%; height: auto; display: block; }


.dd-widget-comments li {
  padding: 8px 0;
}
.dd-widget-comment-author {
  display: block;
  font-size: 12px;
  color: var(--dd-text-muted);
  margin-bottom: 2px;
}
.dd-widget-comment-body {
  display: block;
  font-size: 13px;
  color: var(--dd-primary);
  line-height: 1.4;
  text-decoration: none !important;
}
.dd-widget-comment-body:hover {
  color: var(--dd-primary-hover, var(--dd-primary));
  text-decoration: none;
}


/* 发现页 */
.dd-discover { padding: 8px 0 32px; }
.dd-discover-head { margin-bottom: 24px; }
.dd-discover-title { margin: 0 0 8px; font-size: 24px; }
.dd-discover-intro { margin: 0; font-size: 14px; color: var(--dd-text-muted); }
.dd-discover-section { margin-bottom: 28px; }
.dd-discover-sec-title {
  margin: 0 0 14px;
  font-size: 16px;
  font-weight: 600;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--dd-border);
}
.dd-discover-tags { padding: 4px 0 8px; }
.dd-discover-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 800px) {
  .dd-discover-cols { grid-template-columns: 1fr 1fr; gap: 28px; }
}
.dd-discover-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.dd-discover-item { margin: 0 0 10px; }
.dd-discover-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--dd-text);
  padding: 8px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background .15s, border-color .15s;
}
.dd-discover-link:hover {
  background: var(--dd-card);
  border-color: var(--dd-border);
  color: var(--dd-text);
}
.dd-discover-rank {
  flex-shrink: 0;
  width: 22px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--dd-primary);
}
.dd-discover-thumb {
  flex-shrink: 0;
  width: 56px;
  height: 42px;
  border-radius: 6px;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-border);
}
.dd-discover-thumb--empty {
  background: linear-gradient(135deg, var(--dd-primary-soft), var(--dd-border));
}
.dd-discover-meta {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.dd-discover-name {
  font-size: 14px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}


/* 页脚原生友链 */
.dd-footer-links {
  margin-bottom: 12px;
  font-size: 13px;
  color: var(--dd-text-muted);
  line-height: 1.7;
}
.dd-footer-links-label {
  margin-right: 8px;
  font-weight: 600;
  color: var(--dd-text);
}
.dd-footer-links-sep {
  margin: 0 6px;
  opacity: .5;
}
.dd-footer-links a {
  color: var(--dd-text-muted);
  text-decoration: none;
}
.dd-footer-links a:hover {
  color: var(--dd-primary);
}


/* ===== 页面左侧竖向导航 ===== */
.dd-page-vnav-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  align-items: start;
  margin: 20px 0 40px;
}
.dd-page-vnav {
  position: sticky;
  top: 72px;
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: 10px;
  padding: 12px 0;
  max-height: calc(100vh - 96px);
  overflow-y: auto;
}
.dd-vnav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.dd-vnav-list li {
  margin: 0;
}
.dd-vnav-list > li > a {
  display: block;
  padding: 10px 16px;
  color: var(--dd-text);
  text-decoration: none;
  font-size: 14px;
  border-left: 3px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
}
.dd-vnav-list > li > a:hover,
.dd-vnav-list > li.current-menu-item > a,
.dd-vnav-list > li.current_page_item > a {
  background: var(--dd-primary-soft);
  color: var(--dd-primary);
  border-left-color: var(--dd-primary);
}
.dd-vnav-list .sub-menu {
  list-style: none;
  margin: 0;
  padding: 0 0 4px 12px;
}
.dd-vnav-list .sub-menu a {
  display: block;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--dd-text-muted);
  text-decoration: none;
  border-left: 3px solid transparent;
}
.dd-vnav-list .sub-menu a:hover,
.dd-vnav-list .sub-menu .current-menu-item > a {
  color: var(--dd-primary);
}
.dd-page-vnav-main .dd-page-title {
  margin: 0 0 16px;
  font-size: 1.6rem;
}
.dd-page-vnav-main .dd-content {
  line-height: 1.75;
}
@media (max-width: 800px) {
  .dd-page-vnav-layout {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .dd-page-vnav {
    position: static;
    max-height: none;
  }
  .dd-vnav-list {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px;
  }
  .dd-vnav-list > li > a {
    border-left: none;
    border-radius: 6px;
    padding: 8px 12px;
  }
  .dd-vnav-list .sub-menu {
    display: none;
  }
}


/* 专栏列表：与散文同版式 */
.dd-column-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, 1fr);
}
.dd-column-grid.dd-cols-5 { grid-template-columns: repeat(5, 1fr); }
.dd-column-grid.dd-cols-6 { grid-template-columns: repeat(6, 1fr); }
.dd-column-grid.dd-cols-3 { grid-template-columns: repeat(3, 1fr); }
.dd-column-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--dd-text);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  transition: box-shadow .2s, transform .2s;
}
.dd-column-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,.1);
  transform: translateY(-2px);
  color: var(--dd-text);
}
.dd-column-cover {
  aspect-ratio: 3 / 4;
  background-size: cover;
  background-position: center;
  background-color: var(--dd-border);
}
.dd-column-card-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 10px 12px 12px;
  background: #fff;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity .2s, transform .2s, visibility .2s;
  pointer-events: none;
}
.dd-column-card:hover .dd-column-card-body {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
html.dd-night .dd-column-card-body { background: var(--dd-card); }
.dd-column-card-title {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 4px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dd-column-card-desc {
  margin: 0;
  font-size: 12px;
  color: var(--dd-text-muted);
  line-height: 1.45;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
@media (max-width: 1100px) {
  .dd-column-grid.dd-cols-6,
  .dd-column-grid.dd-cols-5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .dd-column-grid,
  .dd-column-grid.dd-cols-3,
  .dd-column-grid.dd-cols-5,
  .dd-column-grid.dd-cols-6 {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}
@media (max-width: 420px) {
  .dd-column-grid { grid-template-columns: 1fr; }
}


/* 左侧导航页：右侧与默认页面一致 */
.dd-page-vnav-main .dd-single {
  max-width: 900px;
  margin: 0;
}
.dd-page-vnav-main .dd-single-title {
  margin-top: 0;
}


/* ===== 纯净阅读 ===== */
.dd-pure-bar {
  margin: 0;
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 130;
  max-width: min(920px, calc(100vw - 32px));
}
body.admin-bar .dd-pure-bar { top: 48px; }
.dd-pure-panel { margin-top: 8px; }
.dd-pure-btn {
  appearance: none;
  border: 1px solid var(--dd-border);
  background: var(--dd-card);
  color: var(--dd-text);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  line-height: 1.4;
}
.dd-pure-btn:hover,
.dd-pure-btn[aria-pressed="true"] {
  border-color: var(--dd-primary);
  color: var(--dd-primary);
}
.dd-pure-panel {
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid var(--dd-border);
  border-radius: 10px;
  background: var(--dd-card);
  max-width: none;
  box-shadow: 0 8px 24px rgba(0,0,0,.06);
}
.dd-pure-row {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 0;
  overflow-x: auto;
}
.dd-pure-label {
  font-size: 12px;
  color: var(--dd-text-muted);
  min-width: 36px;
}
.dd-pure-chip {
  appearance: none;
  border: 1px solid var(--dd-border);
  background: transparent;
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 13px;
  cursor: pointer;
  color: var(--dd-text);
}
.dd-pure-chip.is-active {
  border-color: var(--dd-primary);
  color: var(--dd-primary);
  background: var(--dd-primary-soft);
}
.dd-pure-check {
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.dd-pure-exit {
  width: 100%;
  margin-top: 4px;
}

/* 纯净开启时 */
html.dd-pure .dd-header,
html.dd-pure .dd-footer,
html.dd-pure .dd-search-overlay,
html.dd-pure .dd-lesson-side,
html.dd-pure .dd-pure-hide-related,
html.dd-pure .dd-breadcrumb,
html.dd-pure .dd-toc-panel,
html.dd-pure #secondary,
html.dd-pure .sidebar,
html.dd-pure aside.widget-area {
  display: none !important;
}
html.dd-pure.dd-pure-hide-comments .dd-comments,
html.dd-pure.dd-pure-hide-comments #comments,
html.dd-pure.dd-pure-hide-comments .comments-area {
  display: none !important;
}
html.dd-pure body {
  background: var(--dd-bg);
}
html.dd-pure .dd-container {
  max-width: calc(var(--dd-pure-w, 920px) + 48px);
}
html.dd-pure .dd-lesson-layout {
  grid-template-columns: 1fr !important;
}
html.dd-pure .dd-single,
html.dd-pure .dd-essay-single,
html.dd-pure .dd-column-single,
html.dd-pure .dd-lesson-main,
html.dd-pure .dd-content {
  max-width: var(--dd-pure-w, 920px) !important;
  margin-left: auto !important;
  margin-right: auto !important;
}
html.dd-pure .dd-content {
  line-height: 1.85;
  font-size: 17px;
}
html.dd-pure[data-pure-font="s"] .dd-content { font-size: 15px; }
html.dd-pure[data-pure-font="m"] .dd-content { font-size: 17px; }
html.dd-pure[data-pure-font="l"] .dd-content { font-size: 19px; }

html.dd-pure[data-pure-bg="eye"],
html.dd-pure[data-pure-bg="eye"] body {
  --dd-bg: #f5f0e6;
  --dd-card: #faf6ee;
  --dd-text: #3d3a34;
  --dd-text-muted: #6b6560;
  --dd-border: #e5dfd3;
  background: #f5f0e6;
}
html.dd-pure[data-pure-bg="night"],
html.dd-pure[data-pure-bg="night"] body {
  --dd-bg: #0b1220;
  --dd-card: #1e293b;
  --dd-text: #e2e8f0;
  --dd-text-muted: #94a3b8;
  --dd-border: #334155;
  background: #0b1220;
}

/* 进度条在纯净模式保留 */
html.dd-pure .dd-read-progress {
  display: block !important;
  top: 0 !important;
}
body.admin-bar html.dd-pure .dd-read-progress,
html.dd-pure body.admin-bar .dd-read-progress {
  top: 32px !important;
}
html.dd-pure .dd-toc {
  top: 16px;
}

/* 多设备：工具条与正文 */
@media (max-width: 800px) {
  .dd-pure-panel {
    max-width: none;
  }
  html.dd-pure .dd-container {
    max-width: 100%;
    padding-left: 16px;
    padding-right: 16px;
  }
  html.dd-pure .dd-content {
    font-size: 16px;
  }
  html.dd-pure[data-pure-font="s"] .dd-content { font-size: 15px; }
  html.dd-pure[data-pure-font="l"] .dd-content { font-size: 18px; }
  html.dd-pure .dd-single-title {
    font-size: 1.35rem;
  }
  /* 纯净时顶栏已藏，给正文一点顶距 */
  html.dd-pure .dd-pure-bar {
    position: fixed;
    top: 8px;
    right: 8px;
    left: 8px;
    background: transparent;
    padding: 0;
    margin: 0;
  }
}
@media (max-width: 480px) {
  html.dd-pure .dd-chapter-nav {
    flex-direction: column;
  }
  html.dd-pure .dd-chapter-nav .dd-btn {
    width: 100%;
    text-align: center;
  }
}
@media (min-width: 801px) and (max-width: 1100px) {
  html.dd-pure .dd-content {
    max-width: var(--dd-pure-w, 920px);
    margin: 0 auto;
  }
}


/* 分类 AJAX 筛选 */
.dd-cat-ajax-target.is-loading {
  opacity: 0.55;
  pointer-events: none;
  transition: opacity .2s;
}
.dd-cat-filter-item {
  cursor: pointer;
}

.dd-cat-filter-wrap .dd-cat-filter-l2 {
  padding-top: 4px;
  border-top: 1px dashed var(--dd-border, #e2e8f0);
}


/* 分类筛选卡片 */
.dd-cat-filter-wrap.dd-card {
  margin: 0 0 20px;
  padding: 14px 16px;
}
.dd-cat-filter-wrap .dd-cat-filter {
  margin: 0;
}
.dd-cat-filter-wrap .dd-cat-filter-l1 {
  margin-bottom: 0;
}
.dd-cat-filter-wrap .dd-cat-filter-l2 {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--dd-border, #e2e8f0);
}
.dd-cat-filter-wrap .dd-cat-filter-l2[style*="display: none"],
.dd-cat-filter-wrap .dd-cat-filter-l2[style*="display:none"] {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}


.dd-cat-filter-label {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  font-size: 13px;
  color: var(--dd-text-muted, #64748b);
  margin-right: 24px;
  flex-shrink: 0;
  user-select: none;
}
.dd-cat-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.dd-cat-filter a {
  font-size: 13px;
}
.dd-cat-filter-label {
  font-size: inherit;
}
.dd-cat-filter a.dd-cat-filter-item {
  margin: 0; /* 用 gap 控制间距 */
}


/* 双列卡片 / 大图摘要 */
.dd-layout-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.dd-post-duo,
.dd-post-feature {
  background: var(--dd-card);
  border: 1px solid var(--dd-border);
  border-radius: 10px;
  overflow: hidden;
}
.dd-post-duo .dd-post-thumb,
.dd-post-feature .dd-post-thumb {
  display: block;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--dd-border);
}
.dd-post-duo .dd-post-thumb img,
.dd-post-feature .dd-post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.dd-post-duo .dd-post-body,
.dd-post-feature .dd-post-body {
  padding: 12px 14px 14px;
}
.dd-post-duo .dd-post-title,
.dd-post-feature .dd-post-title {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.4;
}
.dd-post-duo .dd-post-excerpt,
.dd-post-feature .dd-post-excerpt {
  margin: 0 0 8px;
  color: var(--dd-text-muted);
  font-size: 13px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dd-layout-feature .dd-post-feature {
  display: grid;
  grid-template-columns: 220px 1fr;
  align-items: stretch;
}
.dd-layout-feature .dd-post-feature .dd-post-thumb {
  aspect-ratio: auto;
  min-height: 140px;
  height: 100%;
}
@media (max-width: 800px) {
  .dd-layout-duo { grid-template-columns: 1fr; }
  .dd-layout-feature .dd-post-feature { grid-template-columns: 1fr; }
}


.dd-topic-list.dd-cols-2 { grid-template-columns: repeat(2, 1fr); }
.dd-topic-list.dd-cols-3 { grid-template-columns: repeat(3, 1fr); }
.dd-topic-list.dd-cols-4 { grid-template-columns: repeat(4, 1fr); }
.dd-topic-list.dd-cols-5 { grid-template-columns: repeat(5, 1fr); }
.dd-novel-grid.dd-cols-4,
.dd-column-grid.dd-cols-4,
.dd-essay-grid.dd-cols-4 { grid-template-columns: repeat(4, 1fr); }
.dd-column-grid.dd-cols-3 { grid-template-columns: repeat(3, 1fr); }
.dd-column-grid.dd-cols-5 { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 1100px) {
  .dd-topic-list.dd-cols-4,
  .dd-topic-list.dd-cols-5,
  .dd-novel-grid.dd-cols-4,
  .dd-novel-grid.dd-cols-5,
  .dd-column-grid.dd-cols-4,
  .dd-column-grid.dd-cols-5 { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 800px) {
  .dd-topic-list.dd-cols-3,
  .dd-topic-list.dd-cols-4,
  .dd-topic-list.dd-cols-5,
  .dd-column-grid.dd-cols-3,
  .dd-column-grid.dd-cols-4,
  .dd-column-grid.dd-cols-5 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .dd-topic-list.dd-cols-3,
  .dd-topic-list.dd-cols-4,
  .dd-topic-list.dd-cols-5,
  .dd-column-grid.dd-cols-3,
  .dd-column-grid.dd-cols-4,
  .dd-column-grid.dd-cols-5 { grid-template-columns: 1fr; }
}


@media (max-width: 800px) {
  .dd-toc { display: none !important; }
  .dd-lesson-side { display: none; }
  .dd-lesson-side.is-open {
    display: block;
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 76px;
    max-height: 60vh;
    overflow: auto;
    z-index: 140;
    background: var(--dd-card);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(15,23,42,.18);
    padding: 12px;
  }
  .dd-dir-fab {
    display: inline-flex;
    position: fixed;
    right: 20px;
    bottom: 76px;
    z-index: 141;
    border: 1px solid var(--dd-border);
    background: var(--dd-card);
    color: var(--dd-text);
    border-radius: 999px;
    padding: 8px 14px;
    box-shadow: var(--dd-shadow);
    cursor: pointer;
  }
  html.dd-pure .dd-pure-bar { right: 8px; left: 8px; max-width: none; }
  html.dd-pure .dd-content { font-size: 16px; }
}
@media (min-width: 801px) {
  .dd-dir-fab { display: none !important; }
}


/* ---- 小说章节目录（参考 dayu7 悬停底色） ---- */
.dd-novel-toc {
  margin: 12px 0 24px;
}
.dd-novel-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}
.dd-novel-toc-cols-2 .dd-novel-toc-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.dd-novel-toc-cols-3 .dd-novel-toc-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 768px) {
  .dd-novel-toc-cols-2 .dd-novel-toc-list,
  .dd-novel-toc-cols-3 .dd-novel-toc-list {
    grid-template-columns: 1fr;
  }
}
.dd-novel-toc-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--dd-text, #1e293b);
  background: transparent;
  border: 1px solid transparent;
  transition: background .18s ease, border-color .18s ease, color .18s ease;
}
.dd-novel-toc-link:hover {
  background: var(--dd-primary-soft, #eff6ff);
  border-color: color-mix(in srgb, var(--dd-primary, #2563eb) 25%, transparent);
  color: var(--dd-primary, #2563eb);
  text-decoration: none;
}
.dd-novel-toc-item.is-current .dd-novel-toc-link {
  background: var(--dd-primary-soft, #eff6ff);
  border-color: var(--dd-primary, #2563eb);
  color: var(--dd-primary, #2563eb);
  font-weight: 600;
}
.dd-novel-toc-num {
  flex: 0 0 auto;
  min-width: 1.5em;
  color: var(--dd-text-muted, #64748b);
  font-variant-numeric: tabular-nums;
}
.dd-novel-toc-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
html.dd-night .dd-novel-toc-link:hover,
html.dd-night .dd-novel-toc-item.is-current .dd-novel-toc-link {
  background: rgba(37, 99, 235, 0.15);
}


/* pure bar force visible */
.dd-has-pure-read .dd-pure-bar {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  z-index: 10050;
}


/* 小说详情页三卡片 */
.dd-novel-book-page {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 32px;
}
.dd-novel-book-hero,
.dd-novel-book-toc,
.dd-novel-book-comments {
  background: var(--dd-card, #fff);
  border: 1px solid var(--dd-border, #e2e8f0);
  border-radius: var(--dd-radius, 10px);
  box-shadow: var(--dd-shadow, 0 1px 3px rgba(15,23,42,.06));
  padding: 20px;
}
.dd-novel-book-hero-inner {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.dd-novel-book-hero .dd-novel-cover {
  flex: 0 0 140px;
}
.dd-novel-book-hero .dd-novel-cover img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}
.dd-novel-book-meta {
  flex: 1;
  min-width: 200px;
}
.dd-novel-book-meta .dd-single-title {
  margin-top: 0;
}
.dd-novel-book-toc .dd-section-title {
  margin: 0 0 12px;
  font-size: 18px;
  font-weight: 600;
  padding-left: 10px;
  border-left: 3px solid var(--dd-primary, #2563eb);
}


/* 日期行 + 纯净按钮 */
.dd-single-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.dd-single-meta-row .dd-pure-btn {
  margin-left: auto;
  flex: 0 0 auto;
}

/* 纯净面板：正文右侧外侧纵向 */
.dd-pure-panel {
  position: fixed;
  z-index: 10060;
  width: 52px;
  padding: 10px 6px;
  border: 1px solid var(--dd-border, #e2e8f0);
  border-radius: 12px;
  background: var(--dd-card, #fff);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.dd-pure-panel-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.dd-pure-panel .dd-pure-label {
  font-size: 10px;
  color: var(--dd-text-muted, #64748b);
  writing-mode: horizontal-tb;
  text-align: center;
  line-height: 1.2;
  margin-top: 4px;
}
.dd-pure-panel .dd-pure-chip {
  width: 36px;
  height: 32px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--dd-border, #e2e8f0);
  background: var(--dd-bg, #f8fafc);
  cursor: pointer;
  font-size: 12px;
}
.dd-pure-panel .dd-pure-chip.is-active,
.dd-pure-panel .dd-pure-comments-btn.is-active {
  border-color: var(--dd-primary, #2563eb);
  color: var(--dd-primary, #2563eb);
  background: var(--dd-primary-soft, #eff6ff);
}
.dd-pure-panel .dd-pure-exit {
  margin-top: 8px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--dd-border, #e2e8f0);
  background: var(--dd-card, #fff);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  color: var(--dd-text-muted, #64748b);
}
.dd-pure-panel .dd-pure-exit:hover {
  color: #dc2626;
  border-color: #fca5a5;
}
@media (max-width: 900px) {
  .dd-pure-panel {
    left: auto !important;
    right: 8px !important;
    top: auto !important;
    bottom: 16px;
    width: auto;
    max-width: calc(100vw - 16px);
  }
  .dd-pure-panel-inner {
    flex-direction: row;
    flex-wrap: wrap;
    max-width: 280px;
  }
}


/* 章节右侧目录恢复卡片样式 */
.dd-lesson-side .dd-lesson-side-inner,
.dd-lesson-side {
  background: transparent;
}
.dd-lesson-side .dd-side-title {
  margin: 0 0 10px;
  font-size: 15px;
  font-weight: 600;
}
.dd-lesson-side .dd-course-nav {
  margin: 0;
  padding: 14px 12px 14px 0;
  background: var(--dd-primary-soft, #eff6ff);
  border-radius: 8px;
  border: 1px solid var(--dd-border, #e2e8f0);
}
html.dd-night .dd-lesson-side .dd-course-nav {
  background: var(--dd-primary-soft, #1e293b);
}

/* 纯净面板 1.11.10 */
.dd-pure-panel {
  position: fixed;
  z-index: 10060;
  width: 58px;
  box-sizing: border-box;
  padding: 12px 6px;
  border: 1px solid var(--dd-border, #e2e8f0);
  border-radius: 12px;
  background: var(--dd-card, #fff);
  box-shadow: 0 8px 24px rgba(0,0,0,.08);
}
.dd-pure-panel-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}
.dd-pure-panel .dd-pure-label {
  font-size: 14px !important;
  color: var(--dd-text-muted, #64748b);
  text-align: center;
  line-height: 1.2;
  margin-top: 2px;
}
.dd-pure-panel .dd-pure-chip {
  width: 40px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--dd-border, #e2e8f0);
  background: var(--dd-bg, #f8fafc);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}
.dd-pure-panel .dd-pure-chip.is-active,
.dd-pure-panel .dd-pure-comments-btn.is-active {
  border-color: var(--dd-primary, #2563eb);
  color: var(--dd-primary, #2563eb);
  background: var(--dd-primary-soft, #eff6ff);
}
.dd-pure-panel .dd-pure-exit {
  margin-top: 6px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--dd-border, #e2e8f0);
  background: var(--dd-card, #fff);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--dd-text-muted, #64748b);
  padding: 0;
}
.dd-pure-panel .dd-pure-exit:hover {
  color: #dc2626;
  border-color: #fca5a5;
}
.dd-pure-panel .dd-pure-exit svg {
  display: block;
}
@media (max-width: 900px) {
  .dd-pure-panel {
    width: auto !important;
    max-width: calc(100vw - 16px);
    padding: 8px 10px;
  }
  .dd-pure-panel-inner {
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 6px;
    overflow-x: auto;
  }
  .dd-pure-panel .dd-pure-label {
    display: none;
  }
}


/* yema8 风格：右侧目录白底卡片 */
.dd-lesson-side > .dd-card {
  background: var(--dd-card, #fff);
  border: 1px solid var(--dd-border, #e2e8f0);
  border-radius: var(--dd-radius, 10px);
  box-shadow: var(--dd-shadow, 0 1px 3px rgba(15,23,42,.06));
  padding: 16px;
}
.dd-lesson-side .dd-course-nav {
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
  border-radius: 0 !important;
}
.dd-lesson-side .dd-novel-side-back a {
  color: var(--dd-text-muted, #64748b);
  text-decoration: none;
  font-size: 13px;
}
.dd-lesson-side .dd-novel-side-back a:hover {
  color: var(--dd-primary, #2563eb);
}

.dd-pure-panel .dd-pure-width-btn svg {
  display: block;
}

/* 移动端：左下、分组不拆行 */
@media (max-width: 900px) {
  .dd-pure-panel {
    left: 8px !important;
    right: auto !important;
    bottom: 16px !important;
    top: auto !important;
    width: auto !important;
    max-width: calc(100vw - 16px);
    padding: 8px 10px;
  }
  .dd-pure-panel-inner {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
    align-items: center;
    gap: 6px 8px;
    max-width: 320px;
  }
  .dd-pure-panel .dd-pure-label {
    display: none;
  }
  /* 用 group 包住时不换组中断 — 无 group 时靠顺序 */
  .dd-pure-panel-inner {
    column-gap: 8px;
  }
}

.dd-pure-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
@media (max-width: 900px) {
  .dd-pure-group {
    flex-direction: row;
    flex-wrap: nowrap;
    flex: 0 0 auto;
  }
  .dd-pure-panel-inner {
    align-items: flex-start;
  }
}

.dd-night-toggle .dd-night-icon { display: inline; line-height: 1; }
.dd-night-toggle .dd-night-icon[hidden] { display: none !important; }
html.dd-night .dd-night-toggle .dd-night-icon-moon { display: none !important; }
html.dd-night .dd-night-toggle .dd-night-icon-sun { display: inline !important; }
html:not(.dd-night) .dd-night-toggle .dd-night-icon-sun { display: none !important; }
html:not(.dd-night) .dd-night-toggle .dd-night-icon-moon { display: inline !important; }

/* 顶栏 / 纯净：SVG 图标（不依赖 emoji 字体与 WP 远程转换） */
.dd-icon-btn .dd-ico,
.dd-pure-chip .dd-ico {
  display: block;
  width: 20px;
  height: 20px;
  pointer-events: none;
}
.dd-pure-chip .dd-ico {
  width: 18px;
  height: 18px;
}
.dd-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.dd-night-toggle .dd-night-icon {
  display: inline-flex;
  line-height: 0;
}


/* 小说书架：3:4 封面，悬停显示书名+摘要 */
.dd-novel-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.dd-novel-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.dd-novel-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
@media (max-width: 900px) {
  .dd-novel-grid,
  .dd-novel-cols-4,
  .dd-novel-cols-5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .dd-novel-grid,
  .dd-novel-cols-4,
  .dd-novel-cols-5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.dd-novel-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: 10px;
  overflow: hidden;
  background: var(--dd-card, #fff);
  border: 1px solid var(--dd-border, #e2e8f0);
  box-shadow: var(--dd-shadow, 0 1px 3px rgba(15,23,42,.06));
  transition: transform .15s ease, box-shadow .15s ease;
}
.dd-novel-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15,23,42,.12);
  text-decoration: none;
  color: inherit;
}
.dd-novel-card-cover {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  background-color: var(--dd-primary-soft, #e2e8f0);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.dd-novel-card-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 600;
  color: var(--dd-text-muted, #64748b);
}
.dd-novel-card-overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 12px 14px;
  background: #fff;
  color: var(--dd-text, #0f172a);
  border-top: 1px solid var(--dd-border, #e2e8f0);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .2s ease, transform .2s ease;
  pointer-events: none;
}
.dd-novel-card:hover .dd-novel-card-overlay,
.dd-novel-card:focus-visible .dd-novel-card-overlay {
  opacity: 1;
  transform: translateY(0);
}
.dd-novel-card-title {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--dd-text, #0f172a);
}
.dd-novel-card-excerpt {
  margin: 0;
  font-size: 12px;
  line-height: 1.45;
  color: var(--dd-text-muted, #64748b);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}


/* 空状态 */
.dd-empty-state {
  text-align: center;
  padding: 48px 24px;
  margin: 16px 0 32px;
}
.dd-empty-state-text {
  margin: 0 0 20px;
  font-size: 15px;
  color: var(--dd-text-muted, #64748b);
}
.dd-empty-state-actions {
  margin: 0;
}
.dd-archive-head {
  margin-bottom: 20px;
}
.dd-archive-desc {
  margin-top: 8px;
  color: var(--dd-text-muted, #64748b);
  font-size: 14px;
  line-height: 1.6;
}
.dd-404 {
  max-width: 480px;
  margin: 48px auto;
  text-align: center;
}
.dd-404-code {
  font-size: 56px;
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--dd-text, #0f172a);
  line-height: 1.1;
}
.dd-404-text {
  margin: 0 0 20px;
  color: var(--dd-text-muted, #64748b);
}
.dd-404-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 0 0 24px;
}
.dd-404-search {
  max-width: 320px;
  margin: 0 auto;
}


/* 导航页 · 搜索引擎卡片 */
.dd-se-card {
  margin-bottom: 20px;
  padding: 16px 18px;
}
.dd-se-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.dd-se-tab {
  border: none;
  background: transparent;
  color: var(--dd-text-muted, #64748b);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 4px 10px;
  margin: 0 12px 0 0;
  border-radius: 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  font-family: inherit;
}
.dd-se-tab:hover {
  color: var(--dd-primary, #2563eb);
  background: transparent;
  border-bottom-color: var(--dd-border, #e2e8f0);
}
.dd-se-tab.is-active {
  color: var(--dd-primary, #2563eb);
  background: transparent;
  border-bottom-color: var(--dd-primary, #2563eb);
  font-weight: 600;
}
.dd-se-form {
  display: flex;
  gap: 8px;
  align-items: stretch;
}
.dd-se-input {
  flex: 1;
  min-width: 0;
  height: 40px;
  padding: 0 14px;
  border: 1px solid var(--dd-border, #e2e8f0);
  border-radius: 8px;
  font-size: 14px;
  background: var(--dd-bg, #fff);
  color: var(--dd-text, #0f172a);
}
.dd-se-input:focus {
  outline: none;
  border-color: var(--dd-primary, #2563eb);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.dd-se-btn {
  flex-shrink: 0;
  height: 40px;
  padding: 0 18px;
}
.dd-widget-curriculum {
  margin-bottom: 16px;
}
@media (max-width: 900px) {
  .dd-se-form {
    flex-direction: column;
  }
  .dd-se-btn {
    width: 100%;
  }
}