/*
Theme Name: Yuki
Author: FlozeIII
Description: 极简 × 二次元风格 WordPress 博客主题。数字档案式版面，深色系统外壳与浅色文档面板，内置浅色/深色模式、图片灯箱、代码块复制与评论增强。
Version: 1.3.0
Requires at least: 6.0
Tested up to: 7.1
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: yuki
Tags: blog, minimal, two-columns, light, dark
*/

/* ============================================
   Design Tokens — Yuki
   ============================================ */
:root {
  --yuki-primary: #A5B4FC;
  --yuki-primary-600: #818CF8;
  --yuki-primary-700: #6366F1;
  --yuki-primary-foreground: #1E1B4B;

  --yuki-background: #DCE3E6;
  --yuki-foreground: #182126;
  --yuki-card: #FFFFFF;
  --yuki-muted: #E7EDEF;
  --yuki-muted-foreground: #52666F;
  --yuki-border: #C7D2D7;
  --yuki-input: #C7D2D7;
  --yuki-ring: #A5B4FC;

  --yuki-ink: #182126;
  --yuki-ink-2: #3F525B;
  --yuki-ink-3: #6A7C85;

  --yuki-radius-sm: 4px;
  --yuki-radius-md: 8px;
  --yuki-radius-lg: 16px;
  --yuki-radius-pill: 999px;

  --yuki-content-width: 768px;
  --yuki-wide-width: 1120px;
  --yuki-container-width: 1120px;
  --yuki-sidebar-width: 300px;
  --yuki-layout-gap: 48px;
  --yuki-gutter: 24px;

  --yuki-overlay-backdrop: rgba(24, 24, 31, 0.92);
  --yuki-overlay-foreground: #F3F0EA;

  --yuki-season: #A5B4FC;
  --yuki-bg-scrim: .8;

  --yuki-shadow-1: 0 1px 2px rgba(45, 45, 53, 0.04), 0 1px 1px rgba(45, 45, 53, 0.02);
  --yuki-shadow-2: 0 8px 24px -8px rgba(45, 45, 53, 0.05);

  --yuki-font-sans: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --yuki-font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, monospace;
}

.dark {
  --yuki-primary: #A5B4FC;
  --yuki-primary-600: #818CF8;
  --yuki-primary-700: #6366F1;
  --yuki-primary-foreground: #0F0F14;

  --yuki-background: #070C10;
  --yuki-foreground: #D7E0E4;
  --yuki-card: #111A20;
  --yuki-muted: #18242B;
  --yuki-muted-foreground: #93A5AD;
  --yuki-border: #293841;
  --yuki-input: #293841;
  --yuki-ring: #A5B4FC;

  --yuki-ink: #D7E0E4;
  --yuki-ink-2: #B2C0C7;
  --yuki-ink-3: #7F929B;
}

/* 季节点缀：只染雪兔与贴纸胶带，不改主色/正文/按钮 */
body.season-spring { --yuki-season: #F2A6C2; }
body.season-summer { --yuki-season: #7CC7E8; }
body.season-autumn { --yuki-season: #E8A33D; }
body.season-winter { --yuki-season: #A5B4FC; }

/* 背景图蒙层：只在设置了背景图时出现，跟随深浅色；强度由自定义器的滑杆决定 */
body.yuki-has-background-image::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--yuki-background);
  opacity: var(--yuki-bg-scrim);
  pointer-events: none;
}

/* ============================================
   Base
   ============================================ */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--yuki-background);
  color: var(--yuki-foreground);
  font-family: var(--yuki-font-sans);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.yuki-container { max-width: var(--yuki-container-width); margin: 0 auto; padding: 0 var(--yuki-gutter); }
.yuki-narrow { max-width: var(--yuki-content-width); margin: 0 auto; padding: 0 var(--yuki-gutter); }

/* 二次元点缀：柔和圆点纹理 */
.yuki-dot-pattern {
  background-image: radial-gradient(circle, var(--yuki-border) 1px, transparent 1px);
  background-size: 24px 24px;
}
/* 柔和卡片框 */
.yuki-soft-frame {
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-card);
  box-shadow: var(--yuki-shadow-1);
}

/* ============================================
   Header / Nav
   ============================================ */
.yuki-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
}
.yuki-nav .brand { font-size: 20px; font-weight: 600; letter-spacing: -0.02em; }
.yuki-nav .menu { display: flex; gap: 28px; font-size: 14px; color: var(--yuki-muted-foreground); }
.yuki-nav .menu a { transition: color 180ms ease; }
.yuki-nav .menu a:hover { color: var(--yuki-primary-700); }
.dark .yuki-nav .menu a:hover { color: var(--yuki-primary); }

/* 自定义页头图：导航上方的横幅；无图时不占位 */
.yuki-header-image {
  width: 100%;
  overflow: hidden;
  background: var(--yuki-muted);
}
.yuki-header-image-tag {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}
@media (max-width: 640px) {
  .yuki-header-image-tag { max-height: 220px; }
}

/* ============================================
   Theme Switch — 滑动开关
   ============================================ */
.theme-switch {
  position: relative;
  flex: none;
  width: 60px;
  height: 30px;
  border-radius: var(--yuki-radius-pill);
  border: 1px solid var(--yuki-border);
  background: var(--yuki-muted);
  cursor: pointer;
  transition: background-color 0.35s ease, border-color 0.35s ease;
}
.theme-switch:hover,
.theme-switch:focus-visible { border-color: var(--yuki-primary); }
.theme-switch:focus-visible { outline: 2px solid var(--yuki-ring); outline-offset: 2px; }
.theme-switch-hint {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  color: var(--yuki-ink-3);
}
.theme-switch-hint svg { width: 12px; height: 12px; }
.theme-switch-hint-left { left: 8px; }
.theme-switch-hint-right { right: 8px; }
.theme-switch-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: var(--yuki-radius-pill);
  background: var(--yuki-card);
  box-shadow: 0 2px 6px rgba(45, 45, 53, 0.12);
  transition: transform 0.35s cubic-bezier(0.45, 0, 0.2, 1), background-color 0.35s ease;
}
.dark .theme-switch-knob { transform: translateX(30px); background: #F3F0EA; }
.theme-switch-knob svg { width: 14px; height: 14px; }
.theme-switch-knob-sun { display: inline-flex; color: #E8A33D; }
.theme-switch-knob-moon { display: none; color: #6366F1; }
.dark .theme-switch-knob-sun { display: none; }
.dark .theme-switch-knob-moon { display: inline-flex; }

/* ============================================
   Hero（首页顶部）
   ============================================ */
.yuki-hero { position: relative; overflow: hidden; padding: 72px 0 56px; text-align: center; }
.yuki-hero .yuki-narrow { position: relative; z-index: 1; }
.yuki-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.18;
}
.yuki-hero p { margin: 0 auto; max-width: 560px; color: var(--yuki-muted-foreground); font-size: 17px; }

/* hero 的樱瓣/星光：纯 CSS，只用季节色；reduced motion 下整层隐藏 */
.yuki-hero-petals {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.yuki-hero-petals span {
  position: absolute;
  top: -20px;
  width: 9px;
  height: 9px;
  border-radius: 50% 0 50% 0;
  background: var(--yuki-season);
  opacity: 0;
  animation: yuki-petal-fall 10s linear infinite;
  will-change: transform, opacity;
}
.yuki-hero-petals span:nth-child(1) { left: 6%; width: 8px; height: 8px; animation-duration: 12s; animation-delay: -3s; }
.yuki-hero-petals span:nth-child(2) { left: 18%; width: 10px; height: 10px; animation-duration: 9s; animation-delay: -6s; }
.yuki-hero-petals span:nth-child(3) { left: 31%; width: 7px; height: 7px; animation-duration: 13s; animation-delay: -1s; }
.yuki-hero-petals span:nth-child(4) { left: 47%; width: 9px; height: 9px; animation-duration: 10s; animation-delay: -8s; }
.yuki-hero-petals span:nth-child(5) { left: 62%; width: 8px; height: 8px; animation-duration: 14s; animation-delay: -4s; }
.yuki-hero-petals span:nth-child(6) { left: 78%; width: 10px; height: 10px; animation-duration: 11s; animation-delay: -7s; }
.yuki-hero-petals span:nth-child(7) { left: 90%; width: 7px; height: 7px; animation-duration: 12s; animation-delay: -2s; }

@keyframes yuki-petal-fall {
  0% { transform: translate3d(0, -20px, 0) rotate(0deg); opacity: 0; }
  10% { opacity: .55; }
  50% { transform: translate3d(26px, 160px, 0) rotate(130deg); }
  100% { transform: translate3d(-12px, 360px, 0) rotate(260deg); opacity: 0; }
}

/* 二次元点缀：雪兔 */
.yuki-mascot { display: block; flex: none; overflow: visible; }
.yuki-mascot--sm { width: 64px; height: 64px; }
.yuki-mascot--lg { width: 112px; height: 112px; }
.yuki-hero-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
}
.yuki-hero-title-row h1 { margin-bottom: 0; }
.yuki-hero-title-row + p { margin-top: 16px; }
.yuki-empty-state {
  padding: 80px 0;
  text-align: center;
  color: var(--yuki-muted-foreground);
}
.yuki-empty-state .yuki-mascot { margin: 0 auto 16px; }
.yuki-404 .yuki-mascot { margin: 0 auto 20px; }

/* 空状态：对话气泡，尖角朝上指向雪兔 */
.yuki-empty-state p {
  position: relative;
  display: inline-block;
  max-width: 420px;
  margin: 0 auto;
  padding: 14px 18px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-card);
  color: var(--yuki-ink-2);
  font-size: 15px;
  line-height: 1.7;
  text-align: left;
}
.yuki-empty-state p::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 50%;
  width: 12px;
  height: 12px;
  transform: translateX(-50%) rotate(45deg);
  border-left: 1px solid var(--yuki-border);
  border-top: 1px solid var(--yuki-border);
  background: var(--yuki-card);
}

@media (max-width: 640px) {
  .yuki-mascot--lg { width: 88px; height: 88px; }
  .yuki-hero-title-row { gap: 12px; }
}

/* ============================================
   文章列表 — 纵向单列
   ============================================ */
.yuki-post-list { display: flex; flex-direction: column; max-width: var(--yuki-content-width); margin: 0 auto; }
.yuki-post-item {
  display: flex;
  gap: 20px;
  padding: 24px 8px;
  border-bottom: 1px solid var(--yuki-border);
  transition: background-color 180ms ease;
}
.yuki-post-item:last-child { border-bottom: none; }
.yuki-post-item:hover { background: var(--yuki-muted); }
/* 置顶文章：一条主色竖线，不动布局，也不写字（不引入不可翻译的 content 文本） */
.yuki-post-item.sticky { position: relative; padding-left: 20px; }
.yuki-post-item.sticky::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  bottom: 28px;
  width: 3px;
  border-radius: var(--yuki-radius-pill);
  background: var(--yuki-primary);
}
.yuki-post-item:hover .yuki-post-title { color: var(--yuki-primary-700); }
.dark .yuki-post-item:hover .yuki-post-title { color: var(--yuki-primary); }
.yuki-post-thumb {
  flex: none;
  width: 112px;
  height: 84px;
  border-radius: var(--yuki-radius-md);
  overflow: hidden;
  background: var(--yuki-muted);
  transition: transform 180ms ease;
}
.yuki-post-item:hover .yuki-post-thumb { transform: translateY(-1px); }
.yuki-post-thumb img { width: 100%; height: 100%; object-fit: cover; }
.yuki-post-meta { font-size: 12px; color: var(--yuki-muted-foreground); margin-bottom: 6px; display: flex; gap: 10px; flex-wrap: wrap; }
.yuki-post-title { margin: 0 0 6px; font-size: 19px; font-weight: 600; line-height: 1.35; transition: color 180ms ease; }
.yuki-post-excerpt { margin: 0; font-size: 14px; color: var(--yuki-ink-2); }
/* 分类徽章：贴纸（轻微旋转 + 虚线边 + 一小段半透明胶带） */
.yuki-cat-badge {
  position: relative;
  display: inline-block;
  padding: 2px 12px;
  border: 1px dashed var(--yuki-border);
  border-radius: var(--yuki-radius-pill);
  background: var(--yuki-card);
  color: var(--yuki-foreground);
  font-size: 12px;
  transform: rotate(-2deg);
  transition: transform 180ms ease;
}
.yuki-cat-badge::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 22px;
  height: 10px;
  transform: translateX(-50%) rotate(-4deg);
  border-radius: 2px;
  background: var(--yuki-season);
  opacity: .18;
}
.yuki-cat-badge:hover { transform: rotate(0); }

/* 分页 */
.yuki-pagination { display: flex; justify-content: center; gap: 8px; padding: 40px 0 64px; }
.yuki-pagination .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border-radius: var(--yuki-radius-md);
  border: 1px solid var(--yuki-border);
  font-size: 14px;
  color: var(--yuki-muted-foreground);
  transition: border-color 180ms ease, color 180ms ease;
}
.yuki-pagination .page-numbers:hover { border-color: var(--yuki-primary); color: var(--yuki-primary-700); }
.yuki-pagination .page-numbers.current { background: var(--yuki-primary); border-color: var(--yuki-primary); color: var(--yuki-primary-foreground); }

/* ============================================
   文章详情页
   ============================================ */
.yuki-article-header { max-width: var(--yuki-content-width); margin: 0 auto 48px; }
.yuki-article-header h1 { margin: 16px 0; font-size: clamp(28px, 3.5vw, 40px); font-weight: 700; line-height: 1.25; }
.yuki-article-featured { margin: 0 0 48px; padding: 8px; }
.yuki-article-featured img { border-radius: calc(var(--yuki-radius-lg) - 4px); }

.yuki-single-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--yuki-sidebar-width);
  gap: var(--yuki-layout-gap);
  align-items: start;
}
@media (max-width: 960px) {
  .yuki-single-layout { grid-template-columns: minmax(0, 1fr); }
}

/* 正文排版 */
:is(.yuki-prose, .editor-styles-wrapper) { font-size: 16px; line-height: 1.75; color: var(--yuki-ink-2); }

/* 编辑器画布：与单篇正文文字宽一致（768 − 两侧 24）；只在编辑器里出现。 */
.editor-styles-wrapper {
  max-width: calc(var(--yuki-content-width) - 2 * var(--yuki-gutter));
  margin-left: auto;
  margin-right: auto;
}
:is(.yuki-prose, .editor-styles-wrapper) > *:first-child { margin-top: 0; }
:is(.yuki-prose, .editor-styles-wrapper) h2 { font-size: 26px; font-weight: 600; margin: 2em 0 0.7em; color: var(--yuki-foreground); line-height: 1.3; }
:is(.yuki-prose, .editor-styles-wrapper) h3 { font-size: 20px; font-weight: 600; margin: 1.7em 0 0.6em; color: var(--yuki-foreground); }
:is(.yuki-prose, .editor-styles-wrapper) p { margin: 0 0 1.3em; }
:is(.yuki-prose, .editor-styles-wrapper) a { color: var(--yuki-primary-700); text-decoration: underline; text-underline-offset: 3px; }
.dark :is(.yuki-prose, .editor-styles-wrapper) a { color: var(--yuki-primary); }
:is(.yuki-prose, .editor-styles-wrapper) blockquote {
  margin: 1.8em 0;
  padding: 1em 1.25em;
  border-left: 3px solid var(--yuki-primary);
  border-radius: 0 var(--yuki-radius-md) var(--yuki-radius-md) 0;
  background: var(--yuki-muted);
  font-style: italic;
}
:is(.yuki-prose, .editor-styles-wrapper) ul, :is(.yuki-prose, .editor-styles-wrapper) ol { margin: 0 0 1.3em; padding-left: 1.5em; }
:is(.yuki-prose, .editor-styles-wrapper) li { margin-bottom: 0.45em; }
:is(.yuki-prose, .editor-styles-wrapper) code {
  font-family: var(--yuki-font-mono);
  font-size: 0.9em;
  background: var(--yuki-muted);
  padding: 0.15em 0.4em;
  border-radius: var(--yuki-radius-sm);
  color: var(--yuki-primary-700);
}
.dark :is(.yuki-prose, .editor-styles-wrapper) code { color: var(--yuki-primary); }
:is(.yuki-prose, .editor-styles-wrapper) pre {
  background: var(--yuki-card);
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  padding: 1.2em;
  overflow-x: auto;
}
:is(.yuki-prose, .editor-styles-wrapper) pre code { background: transparent; padding: 0; }

/* 代码块复制：JS 给 pre 外面套一层定位容器；禁用 JS 时这层与按钮都不存在。
   对齐类会被挪到容器上，pre 只负责滚动，按钮不跟着横向滚走。 */
:is(.yuki-prose, .yuki-shuoshuo-body) .yuki-code-block { position: relative; margin: 1em 0; }
:is(.yuki-prose, .yuki-shuoshuo-body) .yuki-code-block > pre { margin: 0; }
.yuki-code-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 1;
  min-width: 64px;
  padding: 4px 10px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-pill);
  background: var(--yuki-card);
  color: var(--yuki-ink-2);
  font-family: var(--yuki-font-sans);
  font-size: 12px;
  line-height: 1.5;
  white-space: nowrap;
  text-align: center;
  cursor: pointer;
  box-shadow: var(--yuki-shadow-1);
  transition: color 160ms ease, border-color 160ms ease;
}
.yuki-code-copy:hover,
.yuki-code-copy.is-copied { color: var(--yuki-primary-700); border-color: var(--yuki-primary); }
.dark .yuki-code-copy:hover,
.dark .yuki-code-copy.is-copied { color: var(--yuki-primary); }
.yuki-code-copy.is-failed { border-color: var(--yuki-ink-3); }
.yuki-code-copy:focus-visible { outline: 2px solid var(--yuki-ring); outline-offset: 2px; }

:is(.yuki-prose, .editor-styles-wrapper) figure { margin: 2em 0; }
:is(.yuki-prose, .editor-styles-wrapper) figcaption { text-align: center; font-size: 13px; color: var(--yuki-muted-foreground); margin-top: 0.7em; }
:is(.yuki-prose, .editor-styles-wrapper) img { border-radius: var(--yuki-radius-lg); }

/* 对齐、图注与宽块。宽度的名字在 :root；单篇里宽块受主列约束，不跨侧栏。 */
/* 浮动图片可能在正文末尾还没收完；清在这里，别让它流进标签、上下篇与评论区。 */
:is(.yuki-prose, .editor-styles-wrapper)::after { content: ""; display: table; clear: both; }
:is(.yuki-prose, .editor-styles-wrapper) .alignleft { float: left; margin: 0.4em 1.2em 1em 0; }
:is(.yuki-prose, .editor-styles-wrapper) .alignright { float: right; margin: 0.4em 0 1em 1.2em; }
:is(.yuki-prose, .editor-styles-wrapper) .aligncenter { display: block; margin: 1.5em auto; }
:is(.yuki-prose, .editor-styles-wrapper) .alignwide { width: 100%; max-width: var(--yuki-wide-width); }
:is(.yuki-prose, .editor-styles-wrapper) .alignfull { width: 100%; max-width: 100%; }

/* 无侧栏的窄栏模板（page.php）才真正放宽；单篇不套这条，宽块止于主列。 */
.yuki-narrow :is(.yuki-prose, .editor-styles-wrapper) .alignwide,
.yuki-narrow :is(.yuki-prose, .editor-styles-wrapper) .alignfull {
  width: min(var(--yuki-wide-width), calc(100vw - 48px));
  margin-left: calc((100% - min(var(--yuki-wide-width), calc(100vw - 48px))) / 2);
  margin-right: 0;
}

:is(.yuki-prose, .editor-styles-wrapper) .wp-caption { max-width: 100%; margin: 1.6em 0; }
:is(.yuki-prose, .editor-styles-wrapper) .wp-caption.alignleft { margin: 0.4em 1.2em 1em 0; }
:is(.yuki-prose, .editor-styles-wrapper) .wp-caption.alignright { margin: 0.4em 0 1em 1.2em; }
:is(.yuki-prose, .editor-styles-wrapper) .wp-caption img { margin: 0; }
:is(.yuki-prose, .editor-styles-wrapper) .wp-caption-text,
:is(.yuki-prose, .editor-styles-wrapper) .gallery-caption {
  margin-top: 0.6em;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yuki-muted-foreground);
  text-align: center;
}

@media (max-width: 640px) {
  :is(.yuki-prose, .editor-styles-wrapper) .alignleft,
  :is(.yuki-prose, .editor-styles-wrapper) .alignright { float: none; margin-left: auto; margin-right: auto; }
}

/* 标签 & 上下篇 */
.yuki-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--yuki-border); }
.yuki-tag {
  padding: 6px 14px;
  border-radius: var(--yuki-radius-pill);
  border: 1px solid var(--yuki-border);
  font-size: 13px;
  color: var(--yuki-muted-foreground);
  transition: border-color 180ms ease, color 180ms ease;
}
.yuki-tag:hover { border-color: var(--yuki-primary); color: var(--yuki-primary-700); }
.yuki-post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; }
@media (max-width: 640px) { .yuki-post-nav { grid-template-columns: 1fr; } }
.yuki-post-nav a {
  padding: 20px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-card);
  transition: border-color 180ms ease, transform 180ms ease;
}
.yuki-post-nav a:hover { border-color: var(--yuki-primary); transform: translateY(-1px); }
.yuki-post-nav .label { font-size: 12px; color: var(--yuki-muted-foreground); margin-bottom: 8px; }
.yuki-post-nav .title { font-weight: 500; font-size: 15px; }

/* 相关文章 */
.yuki-related { margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--yuki-border); }
.yuki-related-title { margin: 0 0 16px; font-size: 18px; font-weight: 600; color: var(--yuki-foreground); }
.yuki-related-list { list-style: none; margin: 0; padding: 0; }
.yuki-related-item { border-bottom: 1px solid var(--yuki-border); }
.yuki-related-item:last-child { border-bottom: none; }
.yuki-related-item a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  font-size: 15px;
  color: var(--yuki-ink-2);
}
.yuki-related-item-title { transition: color 180ms ease; }
.yuki-related-item a:hover .yuki-related-item-title { color: var(--yuki-primary-700); }
.dark .yuki-related-item a:hover .yuki-related-item-title { color: var(--yuki-primary); }
.yuki-related-item time {
  flex: none;
  font-size: 12px;
  color: var(--yuki-muted-foreground);
  white-space: nowrap;
}
@media (max-width: 640px) {
  .yuki-related-item a { gap: 10px; }
}
.yuki-post-nav .next { text-align: right; }

/* ============================================
   侧边栏
   ============================================ */
.yuki-sidebar { display: flex; flex-direction: column; gap: 28px; position: sticky; top: 32px; }
@media (max-width: 960px) { .yuki-sidebar { position: static; } }
.yuki-widget {
  padding: 24px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-card);
}
.yuki-widget h3 {
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yuki-muted-foreground);
}
.yuki-widget ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.yuki-widget a:hover { color: var(--yuki-primary-700); }
.dark .yuki-widget a:hover { color: var(--yuki-primary); }
.yuki-widget .count {
  float: right;
  font-size: 12px;
  color: var(--yuki-muted-foreground);
  background: var(--yuki-muted);
  padding: 1px 9px;
  border-radius: var(--yuki-radius-pill);
}
.yuki-author-card { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.yuki-author-card img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.yuki-author-card .name { font-weight: 600; }
.yuki-author-card .role { font-size: 13px; color: var(--yuki-muted-foreground); }
.yuki-widget .tagcloud { display: flex; flex-wrap: wrap; gap: 8px; }
.yuki-widget .tagcloud a {
  padding: 4px 12px;
  border-radius: var(--yuki-radius-pill);
  border: 1px solid var(--yuki-border);
  font-size: 12px !important;
  color: var(--yuki-muted-foreground);
}
.yuki-widget .tagcloud a:hover { border-color: var(--yuki-primary); color: var(--yuki-primary-700); }
.yuki-hitokoto {
  margin: 0;
  padding: 2px 0 2px 14px;
  border-left: 3px solid var(--yuki-primary);
}
.yuki-hitokoto p { margin: 0; font-size: 14px; line-height: 1.8; color: var(--yuki-ink-2); }
.yuki-hitokoto cite { display: block; margin-top: 8px; font-size: 12px; font-style: normal; color: var(--yuki-muted-foreground); }

/* ============================================
   说说归档
   ============================================ */
/* 说说是短内容，归档里走紧凑的一列：正文直接铺开、缩略图一律不要。
   与文章列表（左 112×84 缩略图 + 摘要）拉开距离，一眼能区分。 */
.yuki-shuoshuo-list { display: flex; flex-direction: column; }
.yuki-shuoshuo-item { padding: 22px 0; border-bottom: 1px solid var(--yuki-border); }
.yuki-shuoshuo-item:first-child { padding-top: 0; }
.yuki-shuoshuo-item:last-child { padding-bottom: 0; border-bottom: none; }
.yuki-shuoshuo-title { margin: 0 0 8px; font-size: 16px; font-weight: 600; line-height: 1.5; }
.yuki-shuoshuo-title a:hover { color: var(--yuki-primary-700); }
.yuki-shuoshuo-body { font-size: 14px; line-height: 1.7; color: var(--yuki-ink-2); }
.yuki-shuoshuo-body > :first-child { margin-top: 0; }
.yuki-shuoshuo-body > :last-child { margin-bottom: 0; }
.yuki-shuoshuo-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  font-size: 12px;
  color: var(--yuki-muted-foreground);
}
.yuki-shuoshuo-meta a:hover { color: var(--yuki-primary-700); }
@media (max-width: 640px) {
  .yuki-shuoshuo-item { padding: 16px 0; }
}

/* 前台发说说：归档顶部的写作框 */
.yuki-shuoshuo-composer {
  margin: 0 0 32px;
  padding: 20px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-card);
}
.yuki-shuoshuo-composer textarea {
  width: 100%;
  min-height: 96px;
  padding: 12px 14px;
  border: 1px solid var(--yuki-input);
  border-radius: var(--yuki-radius-md);
  background: var(--yuki-background);
  color: var(--yuki-ink);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.7;
  resize: vertical;
}
.yuki-shuoshuo-composer textarea:focus {
  outline: 2px solid var(--yuki-ring);
  outline-offset: 1px;
  border-color: var(--yuki-primary);
}
.yuki-shuoshuo-composer-actions { display: flex; justify-content: flex-end; margin-top: 12px; }
.yuki-shuoshuo-composer-message { margin: 0 0 12px; font-size: 14px; color: var(--yuki-ink-2); }
.yuki-shuoshuo-composer-message.is-error { padding-left: 10px; border-left: 3px solid var(--yuki-border); }

/* ============================================
   评论
   ============================================ */
.yuki-comments { margin-top: 64px; padding-top: 40px; border-top: 1px solid var(--yuki-border); }
.yuki-comments h2, .yuki-comments h3 { font-size: 22px; font-weight: 700; margin: 0 0 24px; }
.yuki-comment-list { list-style: none; padding: 0; margin: 0 0 32px; display: flex; flex-direction: column; gap: 20px; }
.yuki-comment-list .comment-body {
  padding: 20px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-card);
  font-size: 14px;
}
/* 作者本人的评论：左侧一道主色内阴影，与普通访客区分，不新添颜色 */
.yuki-comment-list .bypostauthor > .comment-body {
  box-shadow: inset 3px 0 0 var(--yuki-primary);
}
/* 元信息：头像 + 名字一行，日期与「回复 @谁」另起一行 */
.yuki-comment-list .comment-author { display: flex; align-items: center; gap: 10px; }
.yuki-comment-list .comment-author .avatar { border-radius: 50%; }
.yuki-comment-list .comment-author .fn { font-weight: 600; font-style: normal; color: var(--yuki-foreground); }
.yuki-comment-list .comment-metadata {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--yuki-muted-foreground);
}
.yuki-comment-list .comment-metadata a:hover { color: var(--yuki-primary-700); }
/* 「回复 @谁」：层级压平之后，缩进不再说明得了谁在回谁，靠这一枚标签 */
.yuki-comment-reply-to {
  padding: 2px 10px;
  border-radius: var(--yuki-radius-pill);
  background: var(--yuki-muted);
  color: var(--yuki-ink-2);
}
.yuki-comment-list .comment-content { margin-top: 14px; color: var(--yuki-ink-2); }
.yuki-comment-list .comment-content > :first-child { margin-top: 0; }
.yuki-comment-list .comment-content > :last-child { margin-bottom: 0; }
.yuki-comment-list .comment-awaiting-moderation { display: block; margin-top: 8px; font-size: 13px; color: var(--yuki-muted-foreground); }
.yuki-comment-list .reply { margin-top: 12px; }
.yuki-comment-list .comment-reply-link { font-size: 13px; color: var(--yuki-primary-700); }
.yuki-comment-list .comment-reply-link:hover { color: var(--yuki-primary-600); }
/* 第二层：缩进之外再加一道竖线——窄屏上缩进能收窄，这道边线替它说明层级 */
.yuki-comment-list .children { list-style: none; padding-left: 28px; margin-top: 16px; display: flex; flex-direction: column; gap: 16px; }
.yuki-comment-list .children > li > .comment-body { border-left: 3px solid var(--yuki-primary); }
/* 蜜罐字段：正常访客看不见也点不到，机器人却会顺手填上。
   整块容器移出可视区域并裁掉内容——这样里面那个输入框无论被表单的通用输入样式
   撑到多宽，也不会有东西露出来。 */
.yuki-comment-trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.yuki-comment-form .comment-notes,
.yuki-comment-form .logged-in-as,
.yuki-comment-form .comment-form-cookies-consent { font-size: 13px; color: var(--yuki-muted-foreground); }
.yuki-comment-form label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--yuki-muted-foreground); }
.yuki-comment-form .required { color: var(--yuki-primary-700); }
.yuki-comment-form input[type="text"],
.yuki-comment-form input[type="email"],
.yuki-comment-form input[type="url"],
.yuki-comment-form textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--yuki-radius-md);
  border: 1px solid var(--yuki-input);
  background: var(--yuki-background);
  color: var(--yuki-foreground);
  font-family: inherit;
  font-size: 14px;
  margin-bottom: 14px;
}
.yuki-comment-form input:focus, .yuki-comment-form textarea:focus { outline: 2px solid var(--yuki-ring); outline-offset: 1px; }
.yuki-comment-form .comment-form-cookies-consent { display: flex; align-items: center; gap: 8px; }
.yuki-comment-form .comment-form-cookies-consent input { width: auto; margin: 0; }
.yuki-comment-form .comment-form-cookies-consent label { margin: 0; }
.yuki-comment-form .form-submit { margin: 18px 0 0; }
.yuki-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--yuki-radius-md);
  border: none;
  background: var(--yuki-primary);
  color: var(--yuki-primary-foreground);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 180ms ease, transform 180ms ease;
}
.yuki-btn:hover { background: var(--yuki-primary-600); transform: translateY(-1px); }
/* 窄屏：缩进必须让路，否则第二层正文会被挤成一条缝。层级靠左边那道竖线认，不靠留白 */
@media (max-width: 640px) {
  .yuki-comment-list .children { padding-left: 12px; }
  .yuki-comment-list .comment-body { padding: 16px; }
}
/* 待审提示：贴在评论列表上方，说清「还没公开」。与列表里那条 .comment-awaiting-moderation
   不是一回事——那条说的是「这一条在等审核」，这条说的是「你有几条在等审核」。 */
.yuki-pending-notice {
  margin: 0 0 24px;
  padding: 12px 16px;
  border: 1px solid var(--yuki-border);
  border-left: 3px solid var(--yuki-primary);
  border-radius: var(--yuki-radius-md);
  background: var(--yuki-muted);
  font-size: 14px;
  color: var(--yuki-ink-2);
}
/* 提交被挡下时那句话（由脚本插在表单上方）。样式与上面那条共用：设计系统里没有「危险色」，
   新添一枚是 DESIGN.md 的事；这里要的是「看得见、不是正文里的一句话」。 */
.yuki-comment-error {
  margin: 0 0 16px;
  padding: 12px 16px;
  border: 1px solid var(--yuki-border);
  border-left: 3px solid var(--yuki-ink-3);
  border-radius: var(--yuki-radius-md);
  background: var(--yuki-muted);
  font-size: 14px;
  color: var(--yuki-ink-2);
}
/* 点赞与回复排在一条动作行里 */
.yuki-comment-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 12px; }
/* 回复链接自己也带 margin-top，现在这点间距由整行来给 */
.yuki-comment-actions .reply { margin-top: 0; }
/* 计数是服务端渲染出来的（禁用 JS 时它照样在），JS 只让它点得动。
   字色用 --yuki-ink-2：这一枚是给人读的数字，得按正文那套对比度来。 */
.yuki-like {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 12px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-pill);
  background: transparent;
  color: var(--yuki-ink-2);
  font-family: inherit;
  font-size: 13px;
  line-height: 1.6;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}
.yuki-like:hover { border-color: var(--yuki-primary); background: var(--yuki-muted); }
.yuki-like[disabled] { opacity: 0.6; cursor: default; }
.yuki-like-heart { color: var(--yuki-muted-foreground); font-size: 14px; line-height: 1; }
/* 点过的样子：边框与底色跟着主色走，心也上色——不靠数字一个信号说明我点过 */
.yuki-like.is-liked { border-color: var(--yuki-primary); background: var(--yuki-muted); }
.yuki-like.is-liked .yuki-like-heart { color: var(--yuki-primary-600); }
.dark .yuki-like.is-liked .yuki-like-heart { color: var(--yuki-primary); }
.yuki-like-count { font-variant-numeric: tabular-nums; }
/* 只给读屏器念的文字：视觉上藏起来，但留在可访问性树里。
   与 .yuki-comment-trap 的差别在这：那枚是给表单蜜罐的，连读屏器都不该念；
   这一枚相反，它就是给读屏器准备的，所以用 clip 而不是 display:none。 */
.yuki-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

/* ============================================
   Newsletter / Footer
   ============================================ */
.yuki-newsletter { padding: 72px 0; border-top: 1px solid var(--yuki-border); text-align: center; }
.yuki-newsletter form { display: flex; gap: 12px; max-width: 480px; margin: 24px auto 0; }
.yuki-newsletter input {
  flex: 1;
  /* flex 项的 min-width 默认是 auto，输入框的固有宽度就成了地板：320px 视口下这一行
     撑到 325px（视口只有 305），整页因此横向溢出 20px，按钮也被从 76px 挤到 62px。
     写成 0 才能真的收缩。搜索框那条（.yuki-search-form label）早就是这么做的。 */
  min-width: 0;
  padding: 12px 20px;
  border-radius: var(--yuki-radius-md);
  border: 1px solid var(--yuki-input);
  background: var(--yuki-background);
  color: var(--yuki-foreground);
  font-family: inherit;
}
.yuki-footer { padding: 44px 0 28px; border-top: 1px solid var(--yuki-border); }
.yuki-footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
  color: var(--yuki-muted-foreground);
}
.yuki-footer-top .links { display: flex; gap: 24px; }
.yuki-footer-top .links a:hover { color: var(--yuki-primary-700); }
.yuki-icp {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--yuki-border);
  text-align: center;
  font-size: 12px;
  color: var(--yuki-muted-foreground);
}
.yuki-icp a { color: inherit; }
.yuki-icp a:hover { color: var(--yuki-primary-700); }

/* ============================================
   无障碍工具类
   ============================================ */
.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 列表/上下篇/关联/标签的链接：与既有控件同一枚焦点环 */
.yuki-post-item a:focus-visible,
.yuki-post-nav a:focus-visible,
.yuki-related-item a:focus-visible,
.yuki-cat-badge:focus-visible,
.yuki-tag:focus-visible {
  outline: 2px solid var(--yuki-ring);
  outline-offset: 2px;
}

/* ============================================
   头部操作区 & 搜索
   ============================================ */
.yuki-nav-actions { display: flex; align-items: center; gap: 12px; flex: none; }
.yuki-search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  cursor: pointer;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-pill);
  background: var(--yuki-muted);
  color: var(--yuki-ink-3);
  transition: border-color 180ms ease, color 180ms ease;
}
.yuki-search-btn:hover { border-color: var(--yuki-primary); color: var(--yuki-primary-700); }
.yuki-search-btn:focus-visible { outline: 2px solid var(--yuki-ring); outline-offset: 2px; }
.yuki-search-btn svg { width: 15px; height: 15px; }

/* 搜索表单 —— 浮层内与 404 / 搜索无结果页共用 */
.yuki-search-form { display: flex; gap: 8px; }
.yuki-search-form label { flex: 1; min-width: 0; }
.yuki-search-field {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--yuki-input);
  border-radius: var(--yuki-radius-md);
  background: var(--yuki-background);
  color: var(--yuki-foreground);
  font-family: inherit;
  font-size: 14px;
}
.yuki-search-field:focus { outline: 2px solid var(--yuki-ring); outline-offset: 1px; }
.yuki-search-form .yuki-btn { flex: none; padding: 10px 16px; }

/* 居中搜索浮层 */
.yuki-search-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s;
}
.yuki-search-overlay.is-open { opacity: 1; visibility: visible; }
/* 两件事分开：backdrop-filter 负责模糊页面本身，background 负责压暗 */
.yuki-search-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(45, 45, 53, 0.35);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.dark .yuki-search-backdrop { background: rgba(0, 0, 0, 0.5); }
.yuki-search-dialog {
  position: relative;
  width: min(640px, 100%);
  padding: 12px;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-card);
  box-shadow: 0 24px 60px -20px rgba(45, 45, 53, 0.3);
  transform: translateY(10px) scale(0.98);
  transition: transform 0.25s cubic-bezier(0.45, 0, 0.2, 1);
}
.yuki-search-overlay.is-open .yuki-search-dialog { transform: none; }
.yuki-search-dialog .yuki-search-field { padding: 14px 18px; font-size: 16px; }
.yuki-search-dialog .yuki-btn { padding: 14px 24px; }

/* 关闭按钮浮在搜索条上方，不下沉进条内，保持「长条」的完整 */
.yuki-search-close {
  position: absolute;
  top: -44px;
  right: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  cursor: pointer;
  border: 1px solid var(--yuki-border);
  border-radius: var(--yuki-radius-pill);
  background: var(--yuki-card);
  color: var(--yuki-muted-foreground);
  transition: border-color 180ms ease, color 180ms ease;
}
.yuki-search-close:hover { border-color: var(--yuki-primary); color: var(--yuki-foreground); }
.yuki-search-close:focus-visible { outline: 2px solid var(--yuki-ring); outline-offset: 2px; }
.yuki-search-close svg { width: 14px; height: 14px; }

body.yuki-search-locked { overflow: hidden; }

/* ============================================
   图片灯箱
   ============================================ */
.yuki-lightbox {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s;
}
.yuki-lightbox.is-open { opacity: 1; visibility: visible; }
.yuki-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: var(--yuki-overlay-backdrop);
}
.yuki-lightbox-figure {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  max-width: 92vw;
  max-height: 90vh;
  margin: 0;
  transform: scale(0.98);
  transition: transform 0.25s cubic-bezier(0.45, 0, 0.2, 1);
}
.yuki-lightbox.is-open .yuki-lightbox-figure { transform: none; }
.yuki-lightbox-image {
  width: auto;
  height: auto;
  max-width: 92vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--yuki-radius-lg);
  background: var(--yuki-muted);
}
.yuki-lightbox-caption {
  max-width: 92vw;
  margin: 0;
  color: var(--yuki-overlay-foreground);
  font-size: 13px;
  line-height: 1.6;
  text-align: center;
}
.yuki-lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--yuki-radius-pill);
  background: transparent;
  color: var(--yuki-overlay-foreground);
  font-size: 28px;
  line-height: 1;
  transition: border-color 180ms ease, background-color 180ms ease;
}
.yuki-lightbox-close:hover { border-color: var(--yuki-overlay-foreground); }
.yuki-lightbox-close:focus-visible { outline: 2px solid var(--yuki-overlay-foreground); outline-offset: 2px; }
body.yuki-lightbox-locked { overflow: hidden; }
.yuki-prose img.yuki-lightbox-trigger,
.yuki-shuoshuo-body img.yuki-lightbox-trigger { cursor: zoom-in; }

@media (max-width: 640px) {
  .yuki-lightbox { padding: 16px; }
  .yuki-lightbox-close { top: 12px; right: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  .yuki-search-overlay,
  .yuki-search-dialog,
  .yuki-lightbox,
  .yuki-lightbox-figure { transition: none; }
  .yuki-search-dialog,
  .yuki-lightbox-figure { transform: none; }

  /* 只停运动，颜色过渡保留：按钮与卡片仍然有 hover 反馈。 */
  .theme-switch-knob { transition: background-color 0.35s ease; }
  .yuki-btn { transition: background-color 180ms ease; }
  .yuki-btn:hover { transform: none; }
  .yuki-post-thumb { transition: none; }
  .yuki-post-item:hover .yuki-post-thumb { transform: none; }
  .yuki-post-nav a { transition: border-color 180ms ease; }
  .yuki-post-nav a:hover { transform: none; }
  .yuki-cat-badge { transition: none; }
  .yuki-cat-badge:hover { transform: rotate(-2deg); }
  .yuki-hero-petals { display: none; }
}

/* 窄屏收紧导航 */
@media (max-width: 640px) {
  .yuki-nav { padding: 16px; }
  .yuki-nav .menu { gap: 18px; font-size: 13px; }
}

/* ============================================
   404
   ============================================ */
.yuki-404 { padding: 96px 0 120px; text-align: center; }
.yuki-404 .code {
  margin: 0;
  font-size: clamp(56px, 10vw, 88px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--yuki-primary);
}
.yuki-404 h1 { margin: 16px 0 8px; font-size: 26px; font-weight: 700; }
.yuki-404 p { margin: 0 0 32px; color: var(--yuki-muted-foreground); }
.yuki-404 .yuki-search-form { max-width: 400px; margin: 0 auto 24px; }