/*
Theme Name: z_minimal
Theme URI: https://zoco.me/z_minimal.html
Author: zoco
Author URI: https://zoco.me
Description: 一个极致简约、纯净无外部依赖的个人博客主题。支持按年归档、深浅色模式自动跟随系统、SEO 语义化标签与中国大陆秒开优化。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: z_minimal
Tags: blog, minimal, clean, two-columns, dark-mode, microformats, custom-menu
*/

:root {
  --bg-color: #fafbfc;
  --card-bg: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-color: #0ea5e9;
  --accent-hover: #0284c7;
  --accent-light: #f0f7ff;
  --accent-visited: #6366f1;
  --post-visited: #64748b;
  --border-color: #e2e8f0;
  --code-bg: #f3f6f9;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
  --font-mono: ui-monospace, "SF Mono", Monaco, Menlo, Consolas, "Liberation Mono", monospace;
  --max-width: 740px;
  --transition: 0.2s ease;
}

/* 深色模式：科技极夜蓝 + 冰晶浅蓝光晕 */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg-color: #080c14;
    --card-bg: #0e1524;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-color: #7dd3fc;
    --accent-hover: #bae6fd;
    --accent-light: #0d233a;
    --accent-visited: #c084fc;
    --post-visited: #64748b;
    --border-color: #162235;
    --code-bg: #0e1524;
  }
}

html[data-theme="dark"] {
  --bg-color: #080c14;
  --card-bg: #0e1524;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-color: #7dd3fc;
  --accent-hover: #bae6fd;
  --accent-light: #0d233a;
  --accent-visited: #c084fc;
  --post-visited: #64748b;
  --border-color: #162235;
  --code-bg: #0e1524;
}

html[data-theme="light"] {
  --bg-color: #fafbfc;
  --card-bg: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent-color: #0ea5e9;
  --accent-hover: #0284c7;
  --accent-light: #f0f7ff;
  --accent-visited: #6366f1;
  --post-visited: #64748b;
  --border-color: #e2e8f0;
  --code-bg: #f3f6f9;
}

/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  max-width: 100vw;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
  max-width: 100%;
  width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

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

/* 文本选中高光色彩：淡雅蓝背景 + 主题色 */
::selection {
  background-color: var(--accent-light);
  color: var(--accent-color);
}

/* 键盘可访问性优雅对焦轮廓 */
:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Site Wrapper */
.site-wrapper {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  box-sizing: border-box;
  overflow-x: hidden;
}

/* Header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 2.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.site-branding {
  flex-shrink: 0;
  max-width: 100%;
  min-width: 0;
}

.site-title {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  overflow-wrap: break-word;
  word-break: break-word;
}

.site-title a {
  color: var(--text-primary);
}

.site-title a:hover {
  color: var(--accent-color);
}

/* Main Navigation */
.site-navigation {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.nav-menu li a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}

.nav-menu li a:hover,
.nav-menu li.current-menu-item>a,
.nav-menu li.current_page_item>a {
  color: var(--accent-color);
}

/* Navigation Actions Container (RSS & Theme Switcher) */
.nav-actions {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: 1.25rem;
  flex-shrink: 0;
}

/* RSS Feed Button */
.rss-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  transition: all var(--transition);
  box-sizing: border-box;
  flex-shrink: 0;
}

.rss-link-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background-color: var(--accent-light);
}

.rss-link-btn svg {
  display: block;
}

/* Theme Toggle Button (Single Icon 3-state Cycle) */
.theme-toggle-single-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  margin-left: 0;
  padding: 0;
  transition: all var(--transition);
  box-sizing: border-box;
  flex-shrink: 0;
}

.theme-toggle-single-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background-color: var(--accent-light);
}

.theme-toggle-single-btn .theme-icon {
  display: none;
}

html[data-theme-mode="system"] .theme-toggle-single-btn .icon-system,
html:not([data-theme-mode]) .theme-toggle-single-btn .icon-system {
  display: block;
}

html[data-theme-mode="light"] .theme-toggle-single-btn .icon-light {
  display: block;
}

html[data-theme-mode="dark"] .theme-toggle-single-btn .icon-dark {
  display: block;
}

/* Intro Section */
.site-intro {
  margin-bottom: 3rem;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.85;
  white-space: normal;
}

.site-intro p {
  margin-bottom: 0.5rem;
}

/* Main Content Area */
.site-main {
  flex: 1 0 auto;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

/* Category & Tag Archive Header */
.archive-header {
  margin-bottom: 2.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.archive-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-color);
  background-color: var(--accent-light);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.6rem;
  line-height: 1;
}

.archive-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.archive-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Archive & Year Groupings */
.year-archive {
  margin-bottom: 3rem;
}

.year-archive:last-child {
  margin-bottom: 2rem;
}

.year-heading {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 1rem;
  letter-spacing: -0.01em;
}

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

.post-item {
  display: flex;
  align-items: baseline;
  padding: 0.45rem 0;
  font-size: 1rem;
  line-height: 1.6;
  width: 100%;
  min-width: 0;
}

.post-date {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text-muted);
  width: 105px;
  flex-shrink: 0;
  user-select: none;
  font-feature-settings: "tnum" 1;
  font-variant-numeric: tabular-nums;
}

.post-title-link {
  color: var(--text-primary);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 已点击/已访问过的文章标题：呈现雅致的已读弱化色 */
.post-title-link:visited {
  color: var(--post-visited);
}

.post-title-link:hover {
  color: var(--accent-color);
}

.empty-archive-msg {
  color: var(--text-muted);
  padding: 2rem 0;
}

/* Article Detail (Single) */
.article-entry {
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.article-header {
  margin-bottom: 2rem;
}

.article-date {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-color);
  margin-bottom: 0.75rem;
}

.article-title {
  font-size: 1.95rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-primary);
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
}

/* 彻底解决长英文、连续字符与无空格超长URL撑爆移动端版心的问题 */
.article-content p,
.article-content li,
.article-content a,
.article-content span,
.article-content blockquote,
.article-content figcaption,
.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
  overflow-wrap: break-word;
  word-wrap: break-word;
  word-break: break-word;
}

/* 正文超链接：清晰区分普通文本，配以优雅下划线与悬停反馈 */
.article-content a {
  color: var(--accent-color);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3.5px;
  text-decoration-color: var(--accent-color);
  transition: all var(--transition);
  word-break: break-word;
}

/* 正文中已访问/已点击的超链接：呈现区分色 */
.article-content a:visited {
  color: var(--accent-visited);
  text-decoration-color: var(--accent-visited);
}

.article-content a:hover {
  color: var(--accent-hover);
  background-color: var(--accent-light);
  border-radius: 2px;
  text-decoration-color: var(--accent-hover);
}

/* 图片链接无需下划线与背景色 */
.article-content figure a,
.article-content .wp-block-image a,
.article-content .wp-caption a {
  text-decoration: none;
  background-color: transparent !important;
}

@supports selector(:has(img)) {
  .article-content a:has(img) {
    text-decoration: none;
    background-color: transparent !important;
  }
}

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

.article-content h2,
.article-content h3,
.article-content h4 {
  color: var(--text-primary);
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.article-content h2 {
  font-size: 1.45rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.article-content h3 {
  font-size: 1.25rem;
}

.article-content ul,
.article-content ol {
  margin: 1.25rem 0 1.5rem 1.5rem;
}

.article-content li {
  margin-bottom: 0.4rem;
}

.article-content blockquote {
  margin: 1.5rem 0;
  padding: 0.75rem 1.25rem;
  border-left: 3px solid var(--accent-color);
  background-color: var(--accent-light);
  color: var(--text-secondary);
  border-radius: 0 4px 4px 0;
}

.article-content code {
  font-family: var(--font-mono);
  background-color: var(--code-bg);
  padding: 0.15rem 0.35rem;
  border-radius: 4px;
  font-size: 0.88em;
  color: var(--accent-color);
  overflow-wrap: break-word;
  word-break: break-word;
}

.article-content pre,
.article-content .wp-block-code {
  background-color: var(--code-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
  max-width: 100%;
  box-sizing: border-box;
  -webkit-overflow-scrolling: touch;
}

.article-content pre code,
.article-content .wp-block-code code {
  background-color: transparent;
  padding: 0;
  color: var(--text-primary);
  font-size: 0.9rem;
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
}

/* 表格排版：自适应边框与深浅色模式 */
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  font-size: 0.95rem;
  overflow-x: auto;
  display: block;
  max-width: 100%;
  box-sizing: border-box;
}

.article-content th,
.article-content td {
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.9rem;
  text-align: left;
}

.article-content th {
  background-color: var(--code-bg);
  font-weight: 600;
  color: var(--text-primary);
}

/* 水平分割线与多媒体 */
.article-content hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 2.5rem 0;
}

/* 嵌入块 (Embeds / Iframes / Videos) 彻底限制不超出容器 */
.article-content figure,
.article-content .wp-block-image,
.article-content .wp-block-embed,
.article-content .wp-block-embed__wrapper,
.article-content .wp-caption {
  margin: 0.5rem auto 1.5rem auto;
  padding: 0;
  text-align: center;
  max-width: 100% !important;
  width: 100%;
  box-sizing: border-box;
}

/* 覆盖 WordPress 默认的 display: table 避免撑开页面 */
.article-content .wp-block-image.aligncenter,
.article-content .wp-block-image.alignleft,
.article-content .wp-block-image.alignright {
  display: block;
}

.article-content .wp-block-embed__wrapper {
  position: relative;
  max-width: 100% !important;
  overflow: hidden;
}

.article-content iframe,
.article-content video,
.article-content embed,
.article-content object {
  max-width: 100% !important;
  box-sizing: border-box;
}

/* Gutenberg多列区块与画廊容器限制 */
.article-content .wp-block-columns,
.article-content .wp-block-gallery {
  max-width: 100% !important;
  box-sizing: border-box;
}

.article-content img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
  margin: 0.5rem 0 1.25rem 0;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  background-color: var(--code-bg);
  transition: opacity 0.35s ease-in-out;
}

/* 原生懒加载微淡入效果：在保持无JS完全可见的前提下提供优雅的微过渡 */
.article-content img[loading="lazy"]:not(.is-loaded) {
  opacity: 0.88;
}

.article-content img.is-loaded {
  opacity: 1;
}

.article-content figure img,
.article-content .wp-block-image img,
.article-content .wp-caption img,
.article-content p img {
  margin: 0 auto;
  display: block;
}

/* 紧接在上一段文字下方的图片或图片块，消除多余顶部留白 */
.article-content p+figure,
.article-content p+.wp-block-image,
.article-content p+.wp-caption,
.article-content p+img {
  margin-top: -0.5rem;
}

/* 图片说明文字 (Caption)：绝对居中、区分正文字号与层级色 */
.article-content figcaption,
.article-content .wp-element-caption,
.article-content .wp-block-image figcaption,
.article-content .wp-caption .wp-caption-text {
  display: block;
  width: 100%;
  text-align: center !important;
  font-size: 0.85rem !important;
  color: var(--text-muted) !important;
  margin-top: 0.5rem !important;
  margin-bottom: 1.25rem !important;
  line-height: 1.6;
  font-weight: 400;
  letter-spacing: 0.01em;
}

/* Article Permalink Box */
.article-permalink-box {
  margin: 2.5rem 0 0;
  padding: 0.85rem 1.15rem;
  background-color: var(--bg-card);
  border: 1px dashed var(--border-color);
  border-radius: 8px;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  word-break: break-all;
}

.article-permalink-box .permalink-label {
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.article-permalink-box .permalink-url {
  color: var(--link-color);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.article-permalink-box .permalink-url:hover {
  color: var(--accent-color);
}

/* Article Navigation (Previous / Next) */
.article-navigation {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  width: 100%;
  box-sizing: border-box;
}

.nav-previous,
.nav-next {
  flex: 1;
  min-width: 0;
}

.nav-next {
  text-align: right;
}

.nav-meta-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.nav-link-title {
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
  display: inline-block;
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}

.nav-link-title:visited {
  color: var(--post-visited);
}

.nav-link-title:hover {
  color: var(--accent-color);
}

.nav-link-disabled {
  color: var(--text-muted);
  font-size: 0.95rem;
  display: inline-block;
  opacity: 0.65;
}

/* Post and Page Links Pagination (e.g. <!--nextpage-->) */
.page-links {
  margin: 2rem 0 1rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.page-links-title {
  font-weight: 600;
  color: var(--text-secondary);
  margin-right: 0.25rem;
}

.page-links .page-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 8px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.85rem;
  transition: all var(--transition);
}

.page-links .page-number:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.page-links .page-number.current {
  background: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
  font-weight: 600;
}

/* Footer */
.site-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
  text-align: center;
}

.footer-links-row {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 0.25rem;
}

.footer-links-menu {
  list-style: none;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0;
  margin: 0;
}

.footer-links-menu a,
.footer-custom-html a {
  color: var(--text-secondary);
  font-weight: 500;
}

.footer-links-menu a:hover,
.footer-custom-html a:hover {
  color: var(--accent-color);
}

.footer-beian-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

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

.footer-beian-row a:hover {
  color: var(--accent-color);
}

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

/* 404 Page */
.error-404-container {
  text-align: center;
  padding: 4rem 1rem;
}

.error-404-title {
  font-size: 4rem;
  font-weight: 800;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
}

.error-404-msg {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.back-home-btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: 4px;
  background-color: var(--accent-light);
  color: var(--accent-color);
  font-weight: 500;
  transition: all var(--transition);
}

.back-home-btn:hover {
  background-color: var(--accent-color);
  color: #ffffff;
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .site-wrapper {
    padding: 1.5rem 1rem 3rem;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding-bottom: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .site-navigation {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .nav-actions {
    margin-left: 0.5rem;
  }

  .theme-toggle-single-btn {
    margin-left: 0;
  }

  .nav-menu {
    gap: 1rem;
  }

  .post-item {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 0.5rem;
  }

  .post-date {
    width: auto;
    font-size: 0.85rem;
  }

  .post-title-link {
    white-space: normal;
    overflow-wrap: break-word;
    word-break: break-word;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .article-navigation {
    flex-direction: column;
    gap: 1.25rem;
  }

  .article-content .wp-block-columns {
    flex-direction: column !important;
    flex-wrap: wrap !important;
  }

  .article-content .wp-block-column {
    flex-basis: 100% !important;
    width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .nav-next {
    text-align: left;
  }
}

/* ==========================================================================
   Header Avatar & Social Icons
   ========================================================================== */
.site-branding {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-avatar {
  border-radius: 50%;
  display: block;
  object-fit: cover;
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease;
}

.site-avatar:hover {
  transform: scale(1.05);
}

.nav-social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-social-btn:hover {
  color: var(--text-main);
  background-color: var(--bg-hover);
}

/* ==========================================================================
   Article Reading Meta & Copyright Box
   ========================================================================== */
.article-meta {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}

.meta-separator {
  color: var(--border-color);
  user-select: none;
}

.post-copyright-box {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--text-main);
  border-radius: 6px;
  font-size: 0.875rem;
  line-height: 1.6;
}

.post-copyright-box .copyright-item {
  margin-bottom: 0.35rem;
}

.post-copyright-box .copyright-item:last-child {
  margin-bottom: 0;
}

.post-copyright-box .copyright-label {
  font-weight: 600;
  color: var(--text-main);
}

.post-copyright-box .copyright-link,
.post-copyright-box a {
  color: var(--link-color);
  text-decoration: none;
  word-break: break-all;
}

.post-copyright-box a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Comments Area & Respond Form (Modern Minimal Redesign)
   ========================================================================== */
.article-comments {
  margin-top: 4rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--border-color);
}

.comments-section-header {
  margin-bottom: 1.75rem;
}

.comments-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  letter-spacing: -0.01em;
}

/* Force-reset list styles to prevent ugly "1. 2." ordered list prefix */
ol.comment-list,
ul.comment-list,
.comment-list {
  list-style: none !important;
  list-style-type: none !important;
  padding: 0 !important;
  margin: 1.25rem 0 !important;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

ol.comment-list > li,
ul.comment-list > li,
.comment-list li,
.comment-item,
.comment-body {
  list-style: none !important;
  list-style-type: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* Card container for each comment */
.comment-card,
.comment-body {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.15rem 1.25rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative;
  box-sizing: border-box;
}

.comment-card:hover,
.comment-body:hover {
  border-color: var(--border-hover);
}

/* Author Header & Meta */
.comment-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

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

.comment-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
  flex-wrap: wrap;
}

.comment-avatar,
.comment-author span[itemprop="image"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--border-color);
  flex-shrink: 0;
}

.comment-avatar img,
.comment-author .avatar,
.comment-author img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.comment-meta-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.comment-author-name,
.comment-author .fn {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-style: normal;
}

.comment-author-name a,
.comment-author .fn a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

.comment-author-name a:hover,
.comment-author .fn a:hover {
  color: var(--link-color);
  text-decoration: underline;
}

.comment-badge-author {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: 4px;
  background-color: var(--accent-light);
  color: var(--accent-color);
  line-height: 1.3;
}

.comment-date,
.comment-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.comment-meta {
  margin-left: 44px;
  margin-top: -0.25rem;
  margin-bottom: 0.75rem;
}

.comment-meta a {
  color: var(--text-muted);
  text-decoration: none;
}

.comment-meta a:hover {
  color: var(--link-color);
  text-decoration: underline;
}

/* Reply Button */
.comment-action-reply,
.comment-reply {
  margin-top: 0.75rem;
  display: flex;
  justify-content: flex-end;
}

.comment-action-reply a,
.comment-reply a {
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  padding: 3px 10px;
  border-radius: 12px;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.comment-action-reply a:hover,
.comment-reply a:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  background-color: var(--accent-light);
}

/* Comment Moderation Notice */
.comment-moderation-notice,
.comment-awaiting-moderation {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.825rem;
  font-style: normal;
  color: #b45309;
  background-color: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.75rem;
}

[data-theme="dark"] .comment-moderation-notice,
[data-theme="dark"] .comment-awaiting-moderation {
  background-color: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.3);
}

/* Comment Content */
.comment-card-content,
.comment-content {
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--text-main);
  word-break: break-word;
}

.comment-card-content p,
.comment-content p {
  margin: 0.5rem 0;
}

.comment-card-content p:first-child,
.comment-content p:first-child {
  margin-top: 0;
}

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

/* Nested Comments */
.comment-children,
.comment-list .children {
  list-style: none !important;
  margin: 0.85rem 0 0 1rem !important;
  padding: 0 0 0 1rem !important;
  border-left: 2px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
  gap: 0.85rem;
}

.comments-pagination {
  margin: 2rem 0;
  display: flex;
  justify-content: center;
}

.comments-pagination .page-navigator {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 0.4rem;
}

.comments-pagination .page-navigator li a,
.comments-pagination .page-navigator li span {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  font-size: 0.85rem;
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-main);
  text-decoration: none;
  transition: all var(--transition);
}

.comments-pagination .page-navigator li.current a,
.comments-pagination .page-navigator li.current span {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
}

.respond {
  margin-top: 2.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
}

.respond-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.response-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
}

.cancel-comment-reply a {
  font-size: 0.825rem;
  color: var(--text-muted);
  text-decoration: none;
  padding: 3px 8px;
  border-radius: 4px;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  transition: all var(--transition);
}

.cancel-comment-reply a:hover {
  color: #ef4444;
  border-color: #ef4444;
}

.comment-user-info {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.comment-user-name {
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
}

.user-info-sep {
  margin: 0 0.35rem;
  color: var(--text-muted);
}

.logout-link {
  color: var(--link-color);
  text-decoration: none;
}

.logout-link:hover {
  text-decoration: underline;
}

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

.comment-form .form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.required-mark {
  color: var(--accent-color);
  font-weight: 600;
}

.comment-form .form-input,
.comment-form .form-textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  background-color: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  box-sizing: border-box;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.comment-form .form-input:focus,
.comment-form .form-textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.comment-form .form-textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.6;
}

.form-submit-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.85rem;
}

.comment-form .submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--accent-color);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.comment-form .submit-btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12);
}

.comment-form .submit-btn:active {
  transform: translateY(0);
}

.comments-closed-notice {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  background-color: var(--bg-card);
  border-radius: 8px;
  border: 1px dashed var(--border-color);
  margin-top: 2rem;
}

@media (max-width: 640px) {
  .comment-form-fields {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .respond {
    padding: 1rem;
  }

  .comment-children {
    margin-left: 0.5rem;
    padding-left: 0.65rem;
  }
}

/* 打印与导出 PDF 优化：隐藏多余导航与按钮，黑白高对比排版 */
@media print {

  .rss-link-btn,
  .theme-toggle-single-btn,
  .site-navigation,
  .article-navigation,
  .site-footer {
    display: none !important;
  }

  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .site-wrapper {
    padding: 0 !important;
    max-width: 100% !important;
  }

  .site-header {
    border-bottom: 1px solid #000000 !important;
    padding-bottom: 1rem !important;
    margin-bottom: 1.5rem !important;
  }
}