/* =========================================================
   橙の语 —— 二次元 × 商务
   布局：三栏博客（左博主卡吸顶 / 中央瀑布流 / 右组件不吸顶）
   配色：橙黄暖色系；字体：Mochiy Pop One / 站酷快乐体 + Nunito / Noto Sans SC
   ========================================================= */
/* ---- 本地字体预留（可选）：把 woff2 放进 source/fonts/ 后取消注释 ----
@font-face {
  font-family: 'ZCOOL KuaiLe';
  src: url('/fonts/ZCOOL-KuaiLe.woff2') format('woff2');
  font-display: swap;
}
@font-face {
  font-family: 'Mochiy Pop One';
  src: url('/fonts/Mochiy-Pop-One.woff2') format('woff2');
  font-display: swap;
}
-------------------------------------------------------------- */
:root {
  --bg: #fbf8f3;
  --bg-soft: #fff;
  --text: #241f19;
  --muted: #8a8073;
  --primary: #ff9700;
  --primary-deep: #c25e00;
  --primary-soft: #fff1e0; /* 浅橙托底：标签胶囊 / hover 底，单一橙相 */
  --amber: #ffb84d;
  --yellow: #ffd9a0;
  --sun: #ffb259;
  --navy: #3a2c1c;
  --navy-deep: #241a10;
  --line: rgba(36,31,25,0.1);
  --shadow: 0 10px 30px rgba(194,94,0,0.1);
  --radius: 18px;
  --font-main: 'LXGW WenKai', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --font-title: 'LXGW WenKai', 'Noto Sans SC', 'PingFang SC', sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, 'Courier New', monospace;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
/* 主题切换丝滑过渡：只过渡颜色相关属性，避免阻塞 */
*,
*::before,
*::after {
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
/* 但动画/交互类元素不要被全局 transition 覆盖 */
button,
a,
input,
textarea,
select {
  transition: all 0.2s ease;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  font-size: 16px;
  background-color: var(--bg);
/* 纸面底纹：墨点点阵（SVG 纯色，无渐变）；漂浮暖橙圆斑已移至 .bg-deco 动画层 */
  background-image: url("data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' width%3D'20' height%3D'20'%3E%3Ccircle cx%3D'2' cy%3D'2' r%3D'1' fill%3D'%23241F19' fill-opacity%3D'0.12'%2F%3E%3C%2Fsvg%3E");
  background-size: 20px 20px;
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
/* 全站背景图预留（theme.background 配置后生效） */
body.has-bg {
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center top;
  background-attachment: fixed;
/* 全屏背景：cover 铺满视口，center top 优先保留画面上方主体；竖向图在宽屏下高度方向必然有部分裁切，这是 cover 的物理限制 */
}
body.has-bg::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background: rgba(251,248,243,0.35); /* 覆盖层调薄，背景图清晰可见，同时保证文字可读 */
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}
img {
  max-width: 100%;
}
::selection {
  background: rgba(255,151,0,0.3);
}
/* 本地 SVG 图标 */
.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  flex-shrink: 0;
}
/* 滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: #f5e9d5;
}
::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 8px;
  border: 2px solid #f5e9d5;
}
.container {
  width: 94%;
  margin: 0 auto;
}
/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--navy);
  font-family: var(--font-title);
}
.logo-mark {
  display: inline-flex;
  animation: wiggle 6s ease-in-out infinite;
  transform-origin: 50% 100%;
}
.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(170,90,10,0.2);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--text);
  font-size: 0.95rem;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.nav-link:hover {
  color: var(--primary-deep);
  background: #fff3e0;
  transform: translateY(-1px);
}
.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 16px rgba(255,151,0,0.35);
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 12px;
  cursor: pointer;
}
.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: 0.3s;
}
.nav-toggle:hover span {
  background: var(--primary-deep);
}
/* ===== 站内搜索（本地 JSON 索引） ===== */
.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  gap: 7px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  width: 200px;
  transition: border-color 0.2s ease, width 0.2s ease;
}
.search-wrap:focus-within {
  border-color: rgba(255,151,0,0.5);
  width: 240px;
}
.search-wrap .icon {
  color: var(--muted);
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}
.search-input {
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-main);
  font-size: 13.5px;
  width: 100%;
  padding: 8px 0;
  color: var(--text);
}
.search-input::placeholder {
  color: var(--muted);
}
.search-input::-webkit-search-cancel-button {
  -webkit-appearance: none;
}
.search-results {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 340px;
  max-height: 420px;
  overflow-y: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 16px 40px -14px rgba(36,31,25,0.28);
  z-index: 120;
}
.search-results a.search-result-item {
  display: block;
  padding: 11px 15px;
  border-bottom: 1px solid var(--line);
}
.search-results a.search-result-item:last-child {
  border-bottom: none;
}
.search-results a.search-result-item:hover {
  background: var(--primary-soft);
}
.s-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.45;
}
.s-meta {
  font-size: 11.5px;
  color: var(--muted);
  margin: 3px 0 4px;
}
.s-excerpt {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.search-results mark {
  background: rgba(255,151,0,0.18);
  color: var(--primary-deep);
  padding: 0 2px;
  border-radius: 3px;
}
.search-empty {
  padding: 18px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.reading-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: var(--scroll-progress, 0%);
  background: var(--primary);
  z-index: 101;
}
/* ===== 主体与三栏 ===== */
.site-main {
  padding: 30px 0 20px;
  min-height: 60vh;
}
.page-grid {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) 290px;
  gap: 24px;
  align-items: start;
}
.content-main {
  min-width: 0;
}
/* 左侧博主卡：吸顶 */
.sidebar-left {
  position: sticky;
  top: 84px;
  align-self: start;
}
/* 右侧组件：正常文档流，不吸顶 */
.sidebar-right {
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-self: start;
}
/* ===== 组件卡片 ===== */
.widget {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.sidebar-right .widget:hover {
  border-color: rgba(255,151,0,0.4);
  box-shadow: 0 14px 32px rgba(194,94,0,0.13);
}
.widget-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-title);
  color: var(--navy);
  font-size: 1rem;
  padding-bottom: 10px;
  border-bottom: 2px dashed var(--line);
  margin-bottom: 12px;
}
.widget-title::before {
  content: '';
  width: 4px;
  height: 1.05em;
  border-radius: 4px;
  background: var(--primary);
}
.widget-title .icon {
  color: var(--primary-deep);
}
.widget-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 10px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary-deep);
  transition: gap 0.2s ease;
}
.widget-more:hover {
  gap: 8px;
}
/* 博主信息卡（合并统计，美化版） */
.author-card {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 34px 20px 20px;
  border-radius: 22px;
  background: #fdfbf7; /* 暖白，贴近纸面色 */
  border: 1px solid var(--line);
  transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
}
.author-card:hover {
  box-shadow: 0 16px 36px rgba(194,94,0,0.16);
  border-color: rgba(255,151,0,0.35);
}
/* 顶部渐变条 + 光晕 */
.author-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--primary);
}
.author-card::after {
  content: '';
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 140px;
  height: 70px;
  border-radius: 50%;
  background: transparent; /* 原光晕（radial-gradient + blur）已移除，保留伪元素结构 */
  pointer-events: none;
}
/* 装饰小圆点 */
.author-decoration {
  position: absolute;
  top: 14px;
  right: 16px;
  z-index: 1;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--amber);
  opacity: 0.7;
  box-shadow: 18px 0 0 -2px rgba(255,151,0,0.45), 36px 0 0 -4px rgba(255,184,77,0.4);
}
.author-avatar-wrap {
  position: relative;
  display: inline-block;
  margin: 6px auto 16px;
  animation: authorFloat 4.5s ease-in-out infinite;
}
.author-avatar-wrap::before {
/* 旋转虚线光环 */
  content: '';
  position: absolute;
  inset: -9px;
  border-radius: 50%;
  border: 1.5px dashed rgba(255,151,0,0.5);
  animation: spin 14s linear infinite;
  transition: border-color 0.3s ease;
}
.author-avatar-wrap::after {
/* 底部橙弧光 */
  content: '';
  position: absolute;
  left: 50%;
  bottom: -14px;
  transform: translateX(-50%);
  width: 120%;
  height: 18px;
  background: radial-gradient(ellipse, rgba(255,151,0,0.32), transparent 68%);
  pointer-events: none;
}
.author-card:hover .author-avatar-wrap::before {
  border-color: rgba(255,151,0,0.8);
}
.author-avatar {
  position: relative;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: block;
  padding: 4px;
  background: #fff padding-box;
  border: 3px solid var(--primary);
  box-shadow: 0 8px 22px rgba(255,151,0,0.28), 0 0 0 6px rgba(255,184,77,0.12);
  transition: transform 0.3s ease;
}
.author-card:hover .author-avatar {
  transform: scale(1.04);
}
.author-name {
  position: relative;
  font-family: var(--font-title);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--navy); /* 原渐变文字已收敛为实色 */
  letter-spacing: 0.02em;
  padding-bottom: 12px;
}
.author-name::after {
/* 名字下橙色短线 */
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  border-radius: 2px;
  background: var(--primary);
}
.author-bio {
  font-size: 0.82rem;
  color: var(--primary-deep);
  margin: 10px 0 14px;
}
.author-social {
  display: flex;
  justify-content: center;
  gap: 10px;
}
.author-social a {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: #fff3e0;
  color: var(--primary-deep);
  border: 1px solid #ffe4c4;
  transition: 0.25s;
}
.author-social a:hover {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px) rotate(6deg);
  box-shadow: 0 6px 14px rgba(255,151,0,0.35);
}
.author-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 16px;
  padding: 14px 4px 2px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.astat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  transition: transform 0.2s ease;
}
.astat:hover {
  transform: translateY(-2px);
}
.astat + .astat {
  border-left: 1px solid var(--line);
}
.astat .icon {
  width: 1.05em;
  height: 1.05em;
  color: var(--amber);
  margin-bottom: 2px;
}
.astat b {
  font-family: var(--font-title);
  font-size: 1.25rem;
  color: var(--primary-deep);
  line-height: 1.2;
}
.astat span {
  font-size: 0.72rem;
  color: var(--muted);
}
/* 右栏列表 */
.widget-list {
  list-style: none;
}
.widget-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px dashed #f6ead6;
  font-size: 0.9rem;
}
.widget-list li:last-child {
  border-bottom: none;
}
.wlink {
  color: var(--text);
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.wlink:hover {
  color: var(--primary-deep);
}
.widget-list time {
  color: var(--muted);
  font-size: 0.78rem;
  flex-shrink: 0;
}
.wcount {
  background: #fff3e0;
  color: var(--primary-deep);
  border-radius: 999px;
  padding: 0 8px;
  font-size: 0.75rem;
  flex-shrink: 0;
}
.widget-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.widget-archive-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(255,151,0,0.3);
  transition: 0.25s;
}
.widget-archive-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(249,115,22,0.38);
}
/* ===== Hero（极简居中 + 打字机标题；可选 banner 全宽背景） ===== */
.hero {
  position: relative;
  overflow: hidden;
  margin: 0;
  padding: 36px 0;
  text-align: center;
}
.hero.has-banner {
  min-height: 480px;
  padding: 0 24px;
  border-bottom: none;
  display: flex;
  align-items: center;
  justify-content: center;
/* 超长竖图(7911x29756)：cover 下仅显示约 8% 条带，定位到图上 36% 处=「上三分之二」区域（人物上半身） */
  background-size: cover;
  background-position: center 36%;
  background-repeat: no-repeat;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(24,17,9,0.2);
  z-index: 1;
}
/* banner 底部暖白波浪（双层流动动画：两层不同相位/速度的波浪错落滑动，像水波涌动；纯色 SVG 无渐变） */
.hero.has-banner .hero-wave {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 30px;
  z-index: 2;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1200 30' preserveAspectRatio%3D'none'%3E%3Cpath d%3D'M0 30 L0 15 Q 100 4 200 15 T 400 15 T 600 15 T 800 15 T 1000 15 T 1200 15 L1200 30 Z' fill%3D'%23FBF8F3'%2F%3E%3C%2Fsvg%3E");
  background-size: 1200px 30px;
  background-repeat: repeat-x;
  animation: wave-slide-a 16s linear infinite;
}
.hero.has-banner .hero-wave::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1200 30' preserveAspectRatio%3D'none'%3E%3Cpath d%3D'M0 30 L0 12 Q 150 22 300 12 T 600 12 T 900 12 T 1200 12 L1200 30 Z' fill%3D'%23FBF8F3'%2F%3E%3C%2Fsvg%3E");
  background-size: 1200px 30px;
  background-repeat: repeat-x;
  opacity: 0.55;
  animation: wave-slide-b 24s linear infinite;
}
.hero.has-banner .hero-inner {
  justify-content: center;
  padding-bottom: 0;
}
.hero.has-banner .hero-title,
.hero.has-banner .hero-sub {
  text-shadow: 0 2px 10px rgba(0,0,0,0.4);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.hero-title {
  font-size: clamp(2.3rem, 6vw, 3.6rem);
  font-weight: 400;
  line-height: 1.3;
  color: var(--navy);
/* 可爱字体：站酷快乐体（中文圆胖），回退原标题字与 LXGW */
  font-family: 'ZCOOL KuaiLe', var(--font-title), 'LXGW WenKai', sans-serif;
}
.hero.has-banner .hero-title {
  color: #fff;
}
.hero-sub {
  font-size: clamp(1.25rem, 2.7vw, 1.6rem);
  font-weight: 400;
  color: var(--muted);
  font-family: 'ZCOOL KuaiLe', var(--font-title), 'LXGW WenKai', sans-serif;
  letter-spacing: 0.6px;
}
.hero.has-banner .hero-sub {
  color: #f2e7d3;
}
/* 打字机光标（用户要求移除闪烁光标，样式保留便于恢复）
.type-cursor {
  display: inline-block;
  width: 0.45em; height: 1em;
  margin-left: 6px;
  vertical-align: -0.1em;
  background: var(--primary-deep);
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
*/
/* ===== 首页分区标题 ===== */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 4px 0 20px;
}
.section-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-title);
  color: var(--navy);
  font-size: 1.2rem;
}
.section-title .icon {
  color: var(--primary-deep);
}
.section-title::before {
  content: '';
  flex: none;
  width: 4px;
  height: 18px;
  border-radius: 3px;
  background: var(--primary);
}
/* 装饰分隔符（橙点 · 发丝线 · 橙点） */
.deco-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 30px 0;
}
.deco-divider::before,
.deco-divider::after {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary);
}
.deco-divider span {
  width: 46px;
  height: 1px;
  background: var(--line);
}
.section-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  transition: gap 0.2s ease;
}
.section-more:hover {
  color: var(--primary-deep);
  gap: 8px;
}
/* ===== 文章瀑布流（flex 双列 + JS 高度均衡，无 multicol 抖动） ===== */
.post-list {
  display: flex;
  gap: 22px;
  align-items: flex-start;
}
.post-list.single {
  display: block;
}
.masonry-col {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px rgba(194,94,0,0.18);
  border-color: rgba(255,151,0,0.35);
}
/* 卡片封面 */
.card-cover {
  position: relative;
  display: block;
  height: 132px;
  overflow: hidden;
}
.card-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
/* 原斜纹纹理（repeating-linear-gradient）已注释，去 AI 味 */
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.post-card:hover .card-cover img {
  transform: scale(1.06);
}
.card-cover .icon {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 62px;
  height: 62px;
  color: #fff;
  opacity: 0.3;
  transform: translate(-50%, -50%) rotate(-8deg);
}
/* 无封面默认卡片（书本母题：开卷书图标 + 双圆环装饰，纯橙相无渐变） */
.card-cover.no-cover {
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-cover.no-cover::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 118px;
  height: 118px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
}
.card-cover.no-cover::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 92px;
  height: 92px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  border: 1px dashed rgba(255,255,255,0.14);
}
.card-cover.no-cover .icon {
  position: static;
  width: 50px;
  height: 50px;
  color: #fff;
  opacity: 0.45;
  transform: none;
  filter: drop-shadow(0 2px 6px rgba(120,60,0,0.25));
}
.cover-1 {
  background: #ff9700;
}
.cover-2 {
  background: #ffb259;
}
.cover-3 {
  background: #c25e00;
}
.cover-4 {
  background: #ffb84d;
}
.cover-badge,
.cover-cat,
.cover-time {
  position: absolute;
  z-index: 2;
  padding: 2px 12px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}
.cover-badge {
  top: 12px;
  right: 12px;
  background: rgba(255,255,255,0.92);
  color: var(--primary-deep);
}
.cover-cat {
  top: 12px;
  left: 12px;
  background: rgba(255,255,255,0.92);
  color: var(--navy);
}
.cover-time {
  bottom: 10px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(20,14,6,0.72);
  color: #fff;
}
/* 卡片正文 */
.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 18px 22px 20px;
}
.card-title {
  font-size: 1.15rem;
  line-height: 1.45;
  margin: 0 0 8px;
  font-family: var(--font-title);
}
.card-title a {
  color: var(--navy);
}
.card-title a:hover {
  color: var(--primary-deep);
}
.card-excerpt {
  color: var(--muted);
  font-size: 0.92rem;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 0.8rem;
  color: var(--muted);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.meta-item .icon {
  color: var(--primary-deep);
}
.meta-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.meta-tags a {
  color: var(--primary-deep);
  font-weight: 600;
}
.meta-tags a:hover {
  color: var(--amber);
}
.card-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  align-self: flex-end;
  margin-top: 12px;
  color: var(--primary-deep);
  font-weight: 700;
  font-size: 0.9rem;
  transition: gap 0.2s ease;
}
.card-more:hover {
  gap: 8px;
}
/* ===== 分页 ===== */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 40px 0 10px;
  flex-wrap: wrap;
}
.pagination a,
.pagination span {
  min-width: 40px;
  padding: 8px 14px;
  text-align: center;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-weight: 600;
  color: var(--navy);
  font-size: 0.92rem;
  transition: 0.2s;
}
.pagination a:hover {
  border-color: var(--primary);
  color: var(--primary-deep);
  transform: translateY(-2px);
}
.pagination .current {
  background: var(--primary);
  color: #fff;
  border-color: transparent;
}
.pagination .extend {
  min-width: auto;
}
/* ===== 文章页 ===== */
.post {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: clamp(22px, 4vw, 42px);
}
.page-title {
  font-size: 1.7rem;
  color: var(--navy);
  margin: 8px 0 26px;
  font-family: var(--font-title);
}
.post-banner {
  height: 220px;
  border-radius: 16px;
  background-size: cover;
  background-position: center;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 18px;
  padding: 8px 14px;
  background: #fffaf2;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.breadcrumb a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
}
.breadcrumb a:hover {
  color: var(--primary-deep);
}
.breadcrumb .icon {
  color: var(--primary-deep);
}
.crumb-sep {
  opacity: 0.5;
}
.post-header {
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--line);
}
.post-title {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  line-height: 1.4;
  color: var(--navy);
  margin-bottom: 12px;
  font-family: var(--font-title);
}
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.meta-item .icon {
  color: var(--primary-deep);
}
.meta-sep {
  opacity: 0.5;
}
.post-cats a {
  color: var(--primary-deep);
  font-weight: 600;
}
/* 正文排版 */
.post-content {
  font-size: 1.02rem;
}
.post-content p {
  margin: 0.9em 0;
  font-size: 1.05rem;
  line-height: 1.9;
}
.post-content strong,
.post-content b {
  font-weight: 700;
  -webkit-text-stroke: 0.35px currentColor;
}
.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
  color: var(--navy);
  margin: 1.6em 0 0.6em;
  line-height: 1.45;
  font-family: var(--font-title);
}
/* 标题分级（1~3 级明显区分于正文：橙相装饰条 + 层级字号差） */
.post-content h1 {
  font-size: 1.85rem;
  font-weight: 700;
  padding-bottom: 0.45em;
  border-bottom: 2px solid rgba(194,94,0,0.35);
}
.post-content h2 {
  font-size: 1.55rem;
  font-weight: 700;
  padding-left: 14px;
  border-left: 5px solid var(--primary-deep);
  position: relative;
}
.post-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  padding-left: 14px;
  position: relative;
}
.post-content h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--primary);
  transform: rotate(45deg);
}
.post-content h4 {
  font-size: 1.1rem;
}
.post-content a {
  color: var(--primary-deep);
  font-weight: 600;
  position: relative;
  text-decoration: none;
}
.post-content a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.post-content a:hover::after {
  transform: scaleX(1);
}
/* 标签 / 分类胶囊（浅橙底 + 深橙字，小圆角，单一橙相） */
.tag-pill,
.post-cats a,
.meta-tags a,
.post-content .tag {
  display: inline-flex;
  align-items: center;
  background: var(--primary-soft);
  color: var(--primary-deep);
  padding: 2px 10px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.tag-pill:hover,
.post-cats a:hover,
.meta-tags a:hover,
.post-content .tag:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}
.post-content img {
  display: block;
  max-width: 100%;
  margin: 18px auto;
  border-radius: 14px;
  box-shadow: var(--shadow);
}
.post-content blockquote {
  margin: 1.2em 0;
  padding: 14px 20px;
  border-radius: 0 14px 14px 0;
  border-left: 4px solid var(--primary);
  background: #fff7ed;
  color: #5c5347;
}
.post-content blockquote p {
  margin: 0.4em 0;
}
.post-content ul,
.post-content ol {
  margin: 0.9em 0;
  padding-left: 1.6em;
}
.post-content li {
  margin: 0.3em 0;
}
.post-content li::marker {
  color: var(--primary-deep);
}
.post-content hr {
  margin: 2em auto;
  width: 60%;
  border: none;
  height: 3px;
  border-radius: 3px;
  background: rgba(194,94,0,0.3);
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.2em 0;
  font-size: 0.94rem;
}
/* 超宽表格横向滚动容器：不撑破文章容器 */
.post-content .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.2em 0;
}
.post-content .table-scroll table {
  margin: 0;
  width: 100%;
  min-width: max-content; /* 窄表撑满，宽表按内容溢出滚动 */
}
.post-content th,
.post-content td {
  border: 1px solid var(--line);
  padding: 9px 14px;
  text-align: left;
}
.post-content th {
  background: #fff3e0;
  color: var(--navy);
}
.post-content tr:nth-child(even) td {
  background: #fffaf2;
}
/* 行内代码 */
.post-content p code,
.post-content li code,
.post-content td code {
  background: #fff1e0;
  color: #d97706;
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 0.88em;
}
/* 代码块 */
.post-content pre {
  background: #201a12;
  color: #f0e9dc;
  padding: 18px 20px;
  border-radius: 14px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  margin: 1.3em 0;
}
.post-content .highlight {
  position: relative;
  background: #201a12;
  border-radius: 14px;
  margin: 1.3em 0;
  overflow: hidden;
}
.post-content .highlight table {
  margin: 0;
  width: 100%;
  border-collapse: collapse;
}
.post-content .highlight pre {
  margin: 0;
  background: transparent;
  padding: 18px 0;
  line-height: 1.65;
}
.post-content .highlight td br {
  display: none;
}
.post-content .highlight .line {
  display: block;
}
.post-content .highlight .gutter {
  user-select: none;
  text-align: right;
  padding: 0 14px;
  color: #6b5f4a;
  border-right: 1px solid #2e2414;
  width: 1%;
  vertical-align: top;
}
.post-content .highlight .code {
  padding-left: 16px;
  vertical-align: top;
  max-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.post-content .highlight .code pre {
  padding: 18px 20px 18px 0;
  white-space: pre;
}
/* 语法高亮配色 */
.post-content .comment,
.post-content .meta,
.post-content .quote {
  color: #8a7f6a;
  font-style: italic;
}
.post-content .keyword,
.post-content .selector-tag,
.post-content .literal {
  color: #d9a0ff;
}
.post-content .string,
.post-content .attr,
.post-content .attribute,
.post-content .addition {
  color: #a8e05f;
}
.post-content .number,
.post-content .symbol,
.post-content .bullet {
  color: #ffb86c;
}
.post-content .title,
.post-content .section,
.post-content .function .title {
  color: #82b1ff;
}
.post-content .params,
.post-content .variable {
  color: #f0e9dc;
}
.post-content .built_in,
.post-content .type {
  color: #ffd866;
}
.post-content .tag {
  color: #fdba74;
}
.post-content .deletion {
  color: #ff6c9c;
}
.post-content .hljs-keyword {
  color: #d9a0ff;
}
.post-content .hljs-string {
  color: #a8e05f;
}
.post-content .hljs-number {
  color: #ffb86c;
}
.post-content .hljs-comment {
  color: #8a7f6a;
  font-style: italic;
}
.post-content .hljs-title {
  color: #82b1ff;
}
.post-content .hljs-built_in {
  color: #ffd866;
}
/* 复制按钮 */
.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  padding: 4px 14px;
  border: 1px solid #4a3c26;
  border-radius: 999px;
  background: rgba(32,26,18,0.85);
  color: #d9cbb0;
  font-size: 0.78rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.25s ease, background 0.25s ease;
  font-family: var(--font-main);
}
.highlight:hover .copy-btn,
.copy-btn.copied {
  opacity: 1;
}
.copy-btn:hover {
  background: var(--primary-deep);
  color: #fff;
  border-color: var(--primary-deep);
}
/* 代码块折叠（长代码默认收起，code-fold.js 注入 .is-folded/.code-expand） */
.post-content .highlight {
  transition: max-height 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}
/* 展开时内容淡入上浮（丝滑）；收起仅 max-height 过渡 */
.post-content .highlight.is-expanded {
  animation: code-reveal 0.5s ease;
}
.post-content .highlight.is-folded {
  max-height: 400px;
  overflow: hidden;
}
.post-content .highlight.is-expanded {
  max-height: none;
}
.post-content .highlight::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 76px;
  background: linear-gradient(to bottom, rgba(32,26,18,0), rgba(32,26,18,0.94));
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.35s ease;
}
.post-content .highlight.is-folded::after {
  opacity: 1;
}
.code-expand {
  display: block;
  margin: 14px auto 18px;
  padding: 6px 20px;
  border: 1px solid #4a3c26;
  border-radius: 999px;
  cursor: pointer;
  background: rgba(32,26,18,0.85);
  color: #d9cbb0;
  font-size: 0.78rem;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
  font-family: var(--font-main);
  z-index: 3;
}
.post-content .highlight.is-folded > .code-expand {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  margin: 0;
}
.code-expand:hover {
  background: var(--primary-deep);
  color: #fff;
  border-color: var(--primary-deep);
}
@media (prefers-reduced-motion: reduce) {
  .post-content .highlight {
    transition: none;
  }
}
/* 文章标签与上一篇/下一篇 */
.post-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 28px 0 10px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}
.post-tags-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 700;
  color: var(--navy);
  margin-right: 4px;
}
.post-tags-label .icon {
  color: var(--primary-deep);
}
.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 30px;
}
.post-nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 18px;
  border-radius: 14px;
  background: #fffaf2;
  border: 1px solid var(--line);
  transition: 0.25s;
}
.post-nav-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}
.post-nav-item.next {
  text-align: right;
  align-items: flex-end;
}
.nav-label {
  font-size: 0.78rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.nav-title {
  font-weight: 700;
  color: var(--navy);
}
/* ===== 归档 ===== */
.archive-list {
  position: relative;
  padding-left: 26px;
  border-left: 2px dashed var(--line);
}
.archive-year {
  color: var(--navy);
  margin: 30px 0 6px;
  font-size: 1.4rem;
  font-family: var(--font-title);
  display: flex;
  align-items: center;
  gap: 8px;
}
.archive-year .icon {
  color: var(--primary-deep);
}
.archive-item {
  position: relative;
  margin: 10px 0;
  padding: 8px 12px;
  border-radius: 10px;
  transition: background 0.2s, transform 0.2s;
}
.archive-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 18px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px #fff1e0;
}
.archive-item:hover {
  background: #fff;
  transform: translateX(4px);
}
.archive-date {
  color: var(--muted);
  font-size: 0.85rem;
  margin-right: 14px;
}
.archive-link {
  font-weight: 600;
  color: var(--navy);
}
.archive-link:hover {
  color: var(--primary-deep);
}
/* ===== 标签云 / 分类 ===== */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.tag-cloud-item {
  margin: 0;
  padding: 8px 18px;
  background: var(--primary-soft);
  color: var(--primary-deep);
  border-radius: 8px;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.tag-cloud-item:hover {
  transform: rotate(-2deg) scale(1.06);
  background: var(--primary);
  color: #fff;
}
.tag-cloud-item .count,
.category-item .count {
  font-size: 0.78em;
  opacity: 0.7;
  margin-left: 4px;
}
.category-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.category-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  font-weight: 700;
  color: var(--navy);
  box-shadow: 0 4px 14px rgba(194,94,0,0.06);
  transition: 0.25s;
}
.category-item:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  color: var(--primary-deep);
}
.cat-icon {
  color: var(--primary-deep);
  font-size: 1.15em;
}
/* ===== 页脚（三栏） ===== */
.site-footer {
  margin-top: 56px;
  padding: 34px 0 18px;
  background: var(--navy-deep);
  color: #d9cbb0;
  border-radius: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-title);
  font-size: 1.05rem;
  color: #fff;
}
.footer-logo .icon {
  color: var(--amber);
}
.footer-about {
  margin-top: 8px;
  font-size: 0.83rem;
  opacity: 0.8;
  max-width: 320px;
}
.footer-contact {
  list-style: none;
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 0.83rem;
}
.footer-social {
  margin-top: 14px;
}
.footer-contact .contact-label {
  color: var(--amber);
  margin-right: 6px;
}
.footer-contact a {
  color: #cdc3aa;
  transition: color 0.2s;
}
.footer-contact a:hover {
  color: var(--amber);
}
.footer-head {
  color: #fff;
  font-size: 0.9rem;
  margin-bottom: 10px;
  font-family: var(--font-title);
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-links.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 8px 18px;
  justify-content: start;
}
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #cdc3aa;
  font-size: 0.85rem;
}
.footer-links a .icon {
  color: var(--amber);
  opacity: 0.85;
}
.footer-links a:hover {
  color: var(--amber);
}
.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  font-size: 0.83rem;
}
.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding-top: 16px;
  text-align: center;
  font-size: 0.78rem;
  opacity: 0.75;
}
.footer-bottom a {
  color: var(--amber);
}
.footer-icp {
  font-size: 0.78rem;
  opacity: 0.6;
}
/* ===== 回到顶部 ===== */
.back-top {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 99;
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(249,115,22,0.4);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all 0.3s ease;
}
.back-top .icon {
  width: 1.5em;
  height: 1.5em;
}
.back-top[data-visible="true"] {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.back-top:hover {
  transform: translateY(-3px);
}
/* ===== 数学公式与 Mermaid（功能层输出标记，仅基础样式） ===== */
.math-block {
  display: block;
  text-align: center;
  margin: 1.2em 0;
  overflow-x: auto;
}
.math-inline {
  white-space: nowrap;
}
.mermaid {
  margin: 1.2em 0;
  text-align: center;
  overflow-x: auto;
}
.mermaid svg {
  max-width: 100%;
  height: auto;
}
/* 雷达图：窄容器内铺满，宽容器限宽居中，不溢出（canvas 尺寸交由 Chart.js 响应式处理） */
.radar {
  margin: 1.4em auto;
  max-width: 460px;
}
/* ABC 乐谱：abcjs 输出 SVG，笔触/文字色跟随主题 */
.abc {
  margin: 1.4em 0;
  overflow-x: auto;
  text-align: center;
}
/* abcjs responsive 模式用 position:absolute + padding-bottom 撑 SVG，
   它的父容器（abcjs-container）需要显式 position:static 才能让我们加的
   控制栏排在 SVG 后面而不被覆盖 */
.abc .abcjs-container {
  position: static !important;
  padding-bottom: 0 !important;
  width: 100% !important;
}
.abc svg {
  max-width: 100%;
  height: auto;
  position: static !important;
}
.abc svg path[stroke] {
  stroke: var(--text);
}
.abc svg path[fill="none"] {
  stroke: var(--text);
}
.abc svg text {
  fill: var(--text);
  font-family: 'LXGW WenKai', 'Noto Sans SC', serif !important;
}
/* ABC 播放控制栏 */
.abc-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0.6em auto 1.4em;
  padding: 8px 12px;
  background: rgba(255,241,224,0.6);
  border: 1px solid var(--primary);
  border-radius: 12px;
  width: fit-content;
  max-width: 100%;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.abc-btn {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 1px solid var(--primary);
  background: #fff;
  color: var(--primary-deep);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.08s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.abc-btn:hover {
  background: var(--primary);
  color: #fff;
}
.abc-btn:active {
  transform: scale(0.92);
}
.abc-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}
.abc-btn.on {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary-deep);
}
.abc-select {
  height: 30px;
  padding: 0 6px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
}
.abc-range.abc-tempo {
  width: 100px;
  accent-color: var(--primary);
}
.abc-tempo-label {
  font-size: 11px;
  color: var(--muted);
  min-width: 32px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
/* ===== 滚动进入动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
/* ===== 响应式 ===== */
@media (max-width: 1080px) {
  .page-grid {
    grid-template-columns: 220px minmax(0, 1fr) 260px;
    gap: 20px;
  }
}
@media (max-width: 940px) {
  .page-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .sidebar-left {
    position: static;
  }
  .sidebar-right {
    gap: 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
}
@media (max-width: 860px) {
  .hero {
    padding: 28px 0;
  }
  .hero-title {
    font-size: clamp(2rem, 8vw, 2.8rem);
  }
}
@media (max-width: 760px) {
  .nav-toggle {
    display: flex;
  }
  .search-wrap {
    width: auto;
    flex: 1;
    min-width: 0;
    margin-left: auto;
  }
  .search-results {
    position: fixed;
    top: 62px;
    left: 12px;
    right: 12px;
    width: auto;
  }
  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 12px;
    right: 12px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    background: rgba(255,255,255,0.97);
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 10px;
  }
  .site-nav[data-open="true"] {
    display: flex;
  }
  .nav-link {
    text-align: center;
    justify-content: center;
  }
  .post-nav {
    flex-direction: column;
  }
  .post-nav-item.next {
    text-align: left;
    align-items: flex-start;
  }
  .post-content {
    font-size: 0.98rem;
  }
  .post-list {
    flex-direction: column;
  }
}
/* ===== 页面加载 / 跳转丝滑动画 ===== */
body {
  opacity: 0;
  transition: opacity 0.45s ease, transform 0.45s ease;
}
body.is-loaded {
  opacity: 1;
}
body.is-leaving {
  opacity: 0;
  transform: translateY(-6px);
}
/* 跨文档视图转场（支持的浏览器原生丝滑跳转） */
@view-transition {
  navigation: auto;
}
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.42s;
  animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
  html {
    scroll-behavior: auto;
  }
  body,
  .reveal {
    opacity: 1 !important;
  }
}
/* 跳转/加载指示器：旋转条 + 波浪点（单一橙相、无渐变） */
#site-preloader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: rgba(251,248,243,0.94);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
}
#site-preloader.active {
  opacity: 1;
  visibility: visible;
}
.preloader-spinner {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 4px solid rgba(255,151,0,0.18);
  border-top-color: #ff9700;
  animation: preloader-spin 0.8s linear infinite;
}
.preloader-dots {
  display: flex;
  gap: 9px;
}
.preloader-dots i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #c25e00;
  animation: preloader-wave 1s ease-in-out infinite;
}
.preloader-dots i:nth-child(2) {
  animation-delay: 0.15s;
}
.preloader-dots i:nth-child(3) {
  animation-delay: 0.3s;
}
/* 漂浮暖橙圆斑：背景几何动效（fixed 底层、不抢内容、reduced-motion 下由全局规则关闭） */
.bg-deco {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.bg-deco i {
  position: absolute;
  display: block;
  border-radius: 50%;
  background: #ff9700;
  opacity: 0.07;
  left: 0;
  top: 0; /* 尺寸与位置由 JS 随机生成并接管 */
}
/* 音乐播放器：底部悬浮条（暖白实色 + 发丝线，克制不喧宾夺主） */
.music-player {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: rgba(251,248,243,0.97);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 20px rgba(36,31,25,0.06);
  transform: translateY(100%);
  transition: transform 0.34s cubic-bezier(0.4, 0, 0.2, 1);
}
/* 实时音频频谱图背景层（播放时渐显，半透明，不拦截点击） */
.mp-spectrum {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}
.mp-spectrum.active {
  opacity: 1;
}
.music-player.open {
  transform: none;
}
.mp-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 1;
}
.mp-cover {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  flex-shrink: 0;
  background: var(--primary-soft) center/cover no-repeat;
  border: 1px solid rgba(255,151,0,0.3);
}
.mp-cover:empty {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f97316'%3E%3Cpath d='M12 3v10.55c-.59-.34-1.27-.55-2-.55-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4V7h4V3h-6z'/%3E%3C/svg%3E");
  background-size: 60% auto;
}
.mp-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: 240px;
}
.mp-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mp-artist {
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  color: var(--text);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.mp-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}
.mp-btn:hover {
  color: var(--primary-deep);
  background: var(--primary-soft);
  transform: translateY(-1px);
}
.mp-toggle {
  background: var(--primary);
  color: #fff;
}
.mp-toggle:hover {
  background: var(--primary-deep);
  color: #fff;
}
.mp-progress {
  flex: 1;
  min-width: 80px;
  height: 4px;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(194,94,0,0.18);
  border-radius: 2px;
  cursor: pointer;
}
.mp-progress::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(194,94,0,0.35);
}
.mp-progress::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #fff;
}
.mp-time {
  font-size: 0.75rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.mp-vol {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
}
.mp-vol svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}
.mp-vol input {
  width: 72px;
  height: 4px;
  appearance: none;
  -webkit-appearance: none;
  background: rgba(194,94,0,0.18);
  border-radius: 2px;
  cursor: pointer;
}
.mp-vol input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #fff;
}
.mp-vol input::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #fff;
}
/* 播放器出现时给页面留出底部空间，避免遮挡内容 */
body.has-music {
  padding-bottom: 60px;
}
@media (max-width: 860px) {
  body.has-music {
    padding-bottom: 52px;
  }
  .mp-inner {
    padding: 8px 12px;
    gap: 8px;
  }
  .mp-info {
    max-width: 110px;
  }
  .mp-vol {
    display: none;
  }
  .mp-time {
    font-size: 0.7rem;
  }
}
/* 音乐播放器浮动按钮（右下角，back-top 上方）与收起键 */
.mp-float {
  position: fixed;
  right: 22px;
  bottom: 96px;
  z-index: 95;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(249,115,22,0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.mp-float svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}
.mp-float:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 26px rgba(249,115,22,0.45);
}
.mp-float.playing {
  animation: mp-pulse 2.4s ease-in-out infinite;
}
.mp-collapse {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  color: var(--muted);
  transition: color 0.2s ease, background 0.2s ease;
}
.mp-collapse svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}
.mp-collapse:hover {
  color: var(--primary-deep);
  background: var(--primary-soft);
}
@media (max-width: 860px) {
  .mp-float {
    right: 14px;
    bottom: 84px;
    width: 42px;
    height: 42px;
  }
}
/* 左侧博主卡：右上翻面按钮 + 左上背景泡泡开关（对称悬浮） */
.card-flip-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 5;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  background: var(--primary-soft);
  color: var(--primary-deep);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, color 0.2s ease, transform 0.3s ease;
}
.card-flip-btn svg {
  width: 15px;
  height: 15px;
  fill: currentColor;
}
.card-flip-btn:hover {
  background: var(--primary);
  color: #fff;
}
.card-flip-btn.active {
  transform: rotate(180deg);
  background: var(--primary-deep);
  color: #fff;
}
/* 点击头像切换背景泡泡 */
.author-avatar-wrap {
  cursor: pointer;
}
.author-front,
.author-back {
  transition: opacity 0.32s ease, transform 0.32s ease;
}
.author-back {
  position: absolute;
  inset: 0;
  padding: 44px 16px 14px;
  opacity: 0;
  transform: translateX(18px);
  pointer-events: none;
  overflow-y: auto;
  text-align: left;
}
.author-card.flipped .author-front {
  opacity: 0;
  transform: translateX(-18px);
  pointer-events: none;
}
.author-card.flipped .author-back {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.toc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-title);
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px dashed var(--line);
}
.toc-title::before {
  content: "";
  width: 4px;
  height: 1em;
  border-radius: 4px;
  background: var(--primary);
}
.toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.toc-link {
  display: block;
  padding: 6px 10px;
  border-radius: 8px;
  border-left: 2px solid transparent;
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.45;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.toc-link:hover {
  background: var(--primary-soft);
  color: var(--primary-deep);
}
.toc-link.current {
  background: var(--primary-soft);
  color: var(--primary-deep);
  border-left-color: var(--primary);
  font-weight: 600;
}
.toc-h1 {
  font-weight: 700;
}
.toc-h2 {
  padding-left: 18px;
  font-weight: 600;
}
.toc-h3 {
  padding-left: 34px;
  font-size: 0.8rem;
  color: var(--muted);
}
.toc-h3:hover {
  color: var(--primary-deep);
}
/* 左侧博主卡翻面：正面信息 / 背面文章目录（淡入平移切换，克制无 3D） */
.toc-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-title);
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px dashed var(--line);
}
.toc-title::before {
  content: "";
  width: 4px;
  height: 1em;
  border-radius: 4px;
  background: var(--primary);
}
.toc-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.toc-link {
  display: block;
  padding: 6px 10px;
  border-radius: 8px;
  border-left: 2px solid transparent;
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.45;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.toc-link:hover {
  background: var(--primary-soft);
  color: var(--primary-deep);
}
.toc-link.current {
  background: var(--primary-soft);
  color: var(--primary-deep);
  border-left-color: var(--primary);
  font-weight: 600;
}
.toc-h1 {
  font-weight: 700;
}
.toc-h2 {
  padding-left: 18px;
  font-weight: 600;
}
.toc-h3 {
  padding-left: 34px;
  font-size: 0.8rem;
  color: var(--muted);
}
.toc-h3:hover {
  color: var(--primary-deep);
}
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(24,17,9,0.86);
  padding: 24px;
}
.lightbox.open {
  display: flex;
}
.lightbox .lb-stage {
  max-width: 96vw;
  max-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox .lb-stage img {
  max-width: 100%;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  background: var(--surface);
}
.lightbox .lb-cap {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  max-width: 80vw;
  color: rgba(255,248,240,0.85);
  font-size: 0.9rem;
  text-align: center;
  line-height: 1.5;
}
.lightbox .lb-close,
.lightbox .lb-prev,
.lightbox .lb-next {
  position: absolute;
  background: rgba(251,248,243,0.12);
  color: #fbf8f3;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: background 0.2s, transform 0.2s;
}
.lightbox .lb-close:hover,
.lightbox .lb-prev:hover,
.lightbox .lb-next:hover {
  background: rgba(251,248,243,0.24);
}
.lightbox .lb-close {
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 20px;
}
.lightbox .lb-prev,
.lightbox .lb-next {
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 28px;
  line-height: 1;
}
.lightbox .lb-prev {
  left: 20px;
}
.lightbox .lb-next {
  right: 20px;
}
.lightbox .lb-prev:hover,
.lightbox .lb-next:hover {
  transform: translateY(-50%) scale(1.08);
}
.post-content img {
  cursor: zoom-in;
}
@media (max-width: 760px) {
  .lightbox .lb-prev,
  .lightbox .lb-next {
    width: 44px;
    height: 44px;
    font-size: 22px;
  }
  .lightbox .lb-prev {
    left: 10px;
  }
  .lightbox .lb-next {
    right: 10px;
  }
}
.lightbox {
  touch-action: none;
}
.lightbox .lb-stage img {
  transform-origin: center center;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.lightbox .lb-stage img:active {
  cursor: grabbing;
}
.lightbox .lb-zoom-in,
.lightbox .lb-zoom-out {
  position: absolute;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 22px;
  line-height: 1;
}
.lightbox .lb-zoom-in {
  top: 76px;
}
.lightbox .lb-zoom-out {
  top: 128px;
}
@media (max-width: 760px) {
  .lightbox .lb-zoom-in,
  .lightbox .lb-zoom-out {
    width: 40px;
    height: 40px;
    font-size: 20px;
    right: 10px;
  }
  .lightbox .lb-zoom-in {
    top: 68px;
  }
  .lightbox .lb-zoom-out {
    top: 116px;
  }
}
.mermaid-viewer {
  position: relative;
  margin: 1.4em 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fbf8f3;
  overflow: hidden;
  touch-action: none;
}
.mermaid-viewer .mermaid-canvas {
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px 14px;
  transform-origin: center center;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}
.mermaid-viewer .mermaid-canvas:active {
  cursor: grabbing;
}
.mermaid-viewer .mermaid-canvas svg {
  max-width: 100%;
  height: auto;
  display: block;
}
.mermaid-viewer .mermaid-toolbar {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.2s;
}
.mermaid-viewer:hover .mermaid-toolbar {
  opacity: 1;
}
.mermaid-viewer .mermaid-toolbar button {
  height: 34px;
  min-width: 34px;
  padding: 0 4px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(251,248,243,0.92);
  color: var(--primary-deep);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: background 0.15s, color 0.15s;
}
.mermaid-viewer .mermaid-toolbar button:hover {
  background: var(--primary);
  color: #fff;
}
.mermaid-viewer .mermaid-toolbar button[data-act="svg"],
.mermaid-viewer .mermaid-toolbar button[data-act="png"],
.mermaid-viewer .mermaid-toolbar button[data-act="copy"] {
  width: auto;
  padding: 0 10px;
  font-size: 12px;
  letter-spacing: 0.5px;
}
@media (max-width: 760px) {
  .mermaid-viewer .mermaid-toolbar {
    opacity: 1;
  }
  .mermaid-viewer .mermaid-toolbar button {
    height: 30px;
    min-width: 30px;
    font-size: 13px;
  }
}
/* =========================================================
   Admonition / Callout 彩色提示块
   ========================================================= */
.admonition {
  margin: 1.2em 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--admonition-bg, var(--bg-soft));
}
.admonition-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 14px;
  font-weight: 600;
  font-size: 0.95rem;
  background: var(--admonition-header-bg, var(--primary-soft));
  border-bottom: 1px solid var(--line);
  color: var(--admonition-header-text, var(--primary-deep));
}
.admonition-type {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  opacity: 0.7;
  font-weight: 700;
}
.admonition-title {
  font-weight: 600;
}
.admonition-body {
  padding: 10px 14px;
  color: var(--text);
}
.admonition-body > :first-child {
  margin-top: 0;
}
.admonition-body > :last-child {
  margin-bottom: 0;
}
.admonition.note {
  --admonition-header-bg: rgba(255,151,0,0.15);
  --admonition-header-text: #9a4d00;
  --admonition-bg: rgba(255,241,224,0.5);
}
.admonition.tip {
  --admonition-header-bg: rgba(255,184,77,0.22);
  --admonition-header-text: #7a3e00;
  --admonition-bg: rgba(255,217,160,0.4);
}
.admonition.info {
  --admonition-header-bg: rgba(100,130,180,0.18);
  --admonition-header-text: #2a4776;
  --admonition-bg: rgba(100,130,180,0.08);
}
.admonition.warning {
  --admonition-header-bg: rgba(220,140,30,0.22);
  --admonition-header-text: #7a4400;
  --admonition-bg: rgba(255,200,130,0.3);
}
.admonition.danger {
  --admonition-header-bg: rgba(200,60,60,0.2);
  --admonition-header-text: #8a1818;
  --admonition-bg: rgba(255,180,170,0.3);
}
.admonition.success {
  --admonition-header-bg: rgba(80,150,80,0.2);
  --admonition-header-text: #265a2a;
  --admonition-bg: rgba(180,220,180,0.3);
}
.admonition.question {
  --admonition-header-bg: rgba(150,100,200,0.18);
  --admonition-header-text: #4d2880;
  --admonition-bg: rgba(200,180,230,0.25);
}
/* =========================================================
   明暗主题切换（[data-theme="dark"] 覆写 :root 变量）
   ========================================================= */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease;
  box-shadow: 0 2px 8px rgba(194,94,0,0.08);
}
.theme-toggle:hover {
  background: var(--primary-soft);
  transform: rotate(20deg);
}
[data-theme="dark"] {
  --bg: #14110c;
  --bg-soft: #1d1811;
  --text: #e8dfd2;
  --muted: #9f9280;
  --primary: #ffb259;
  --primary-deep: #ff9700;
  --primary-soft: rgba(255,184,77,0.12);
  --amber: #ffc97b;
  --yellow: #ffe2a8;
  --sun: #ffb259;
  --navy: #f0e5d5;
  --navy-deep: #d4c9b5;
  --line: rgba(232,223,210,0.18);
  --shadow: 0 10px 30px rgba(0,0,0,0.55);
}
[data-theme="dark"] body {
  background-color: var(--bg);
  color: var(--text);
}
[data-theme="dark"] body::before {
  background: rgba(20,17,12,0.85);
}
[data-theme="dark"] ::-webkit-scrollbar-track {
  background: #1c1812;
}
[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: #5c4528;
  border-color: #1c1812;
}
/* 导航栏 */
[data-theme="dark"] .site-header {
  background: rgba(29,24,17,0.95);
  border-bottom-color: var(--line);
}
[data-theme="dark"] .site-header .logo {
  color: var(--yellow);
}
[data-theme="dark"] .site-nav a {
  color: var(--text);
}
[data-theme="dark"] .site-nav a:hover {
  color: var(--primary);
}
[data-theme="dark"] .site-header input[type="text"],
[data-theme="dark"] .site-header input {
  background: #241f17;
  color: var(--text);
  border-color: var(--line);
}
/* 卡片 & 博主卡 */
[data-theme="dark"] .card,
[data-theme="dark"] .author-card,
[data-theme="dark"] .widget {
  background: var(--bg-soft);
  border-color: var(--line);
  box-shadow: var(--shadow);
}
[data-theme="dark"] .author-name {
  color: var(--yellow);
}
[data-theme="dark"] .author-bio,
[data-theme="dark"] .author-social a {
  color: var(--muted);
}
[data-theme="dark"] .author-social a:hover {
  color: var(--primary);
}
/* 文章区 */
[data-theme="dark"] .post-content {
  color: var(--text);
}
[data-theme="dark"] .post-content h1,
[data-theme="dark"] .post-content h2,
[data-theme="dark"] .post-content h3,
[data-theme="dark"] .post-content h4,
[data-theme="dark"] .post-content h5,
[data-theme="dark"] .post-content h6 {
  color: var(--yellow);
  border-color: var(--line);
}
[data-theme="dark"] .post-content a {
  color: var(--primary);
}
[data-theme="dark"] .post-content a:hover {
  color: var(--sun);
}
[data-theme="dark"] .post-content blockquote {
  background: #241f17;
  border-color: var(--primary-deep);
  color: var(--muted);
}
[data-theme="dark"] .post-content code {
  background: #2a251d;
  color: var(--sun);
}
[data-theme="dark"] .post-content table th {
  background: #241f17;
  color: var(--yellow);
  border-color: var(--line);
}
[data-theme="dark"] .post-content table td {
  border-color: var(--line);
  color: var(--text);
}
[data-theme="dark"] .post-content table tr:nth-child(even) {
  background: rgba(255,184,77,0.04);
}
/* 代码高亮 */
[data-theme="dark"] .highlight,
[data-theme="dark"] pre {
  background: #1a1611;
  border-color: var(--line);
  color: var(--text);
}
[data-theme="dark"] .highlight .gutter {
  color: #5a4a36;
  border-color: var(--line);
}
[data-theme="dark"] .highlight .gutter pre {
  background: transparent;
}
[data-theme="dark"] .highlight .code {
  color: var(--text);
}
[data-theme="dark"] .highlight .keyword {
  color: #ffb259;
}
[data-theme="dark"] .highlight .string {
  color: #ffe2a8;
}
[data-theme="dark"] .highlight .comment {
  color: #7a6c58;
  font-style: italic;
}
[data-theme="dark"] .highlight .number {
  color: #d4c9b5;
}
[data-theme="dark"] .highlight .function {
  color: #ffc97b;
}
[data-theme="dark"] .highlight .variable {
  color: var(--text);
}
[data-theme="dark"] .highlight .tag {
  color: #ff9700;
}
[data-theme="dark"] .highlight .attr {
  color: #ffc97b;
}
/* Footer */
[data-theme="dark"] .site-footer {
  background: #1a1611;
  border-color: var(--line);
  color: var(--muted);
}
/* 背景泡泡 */
[data-theme="dark"] .bg-deco i {
  filter: brightness(0.5) saturate(0.7);
}
/* 搜索面板 & 导航链接 hover */
[data-theme="dark"] .site-nav .nav-link:hover {
  background: rgba(255,184,77,0.15);
}
[data-theme="dark"] .site-nav .nav-link.active {
  background: var(--primary);
  color: #14110c;
}
[data-theme="dark"] .search-wrap {
  background: #241f17;
  border-color: var(--line);
}
[data-theme="dark"] .search-wrap .icon {
  color: var(--muted);
}
[data-theme="dark"] .search-input {
  color: var(--text);
}
[data-theme="dark"] .search-results {
  background: #1d1811;
  border-color: var(--line);
  box-shadow: 0 16px 40px rgba(0,0,0,0.5);
}
[data-theme="dark"] .search-results a.search-result-item {
  border-bottom-color: var(--line);
}
[data-theme="dark"] .search-results a.search-result-item:hover {
  background: rgba(255,184,77,0.12);
}
[data-theme="dark"] .s-meta,
[data-theme="dark"] .s-excerpt {
  color: #7a6c58;
}
[data-theme="dark"] .s-title {
  color: var(--yellow);
}
/* Hero banner 波浪（暗色下用深底波浪） */
[data-theme="dark"] .hero.has-banner .hero-wave {
  background-image: url("data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1200 30' preserveAspectRatio%3D'none'%3E%3Cpath d%3D'M0 30 L0 15 Q 100 4 200 15 T 400 15 T 600 15 T 800 15 T 1000 15 T 1200 15 L1200 30 Z' fill%3D'%2314110c'%2F%3E%3C%2Fsvg%3E");
}
[data-theme="dark"] .hero.has-banner .hero-wave::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg' viewBox%3D'0 0 1200 30' preserveAspectRatio%3D'none'%3E%3Cpath d%3D'M0 30 L0 12 Q 150 22 300 12 T 600 12 T 900 12 T 1200 12 L1200 30 Z' fill%3D'%2314110c'%2F%3E%3C%2Fsvg%3E");
  opacity: 0.4;
}
/* 面包屑 */
[data-theme="dark"] .breadcrumb {
  background: #241f17;
  color: var(--muted);
  border-color: var(--line);
}
/* 标签云 & 标签计数 */
[data-theme="dark"] .tag-cloud {
  background: rgba(255,184,77,0.12);
  color: var(--primary);
}
[data-theme="dark"] .wcount {
  background: rgba(255,184,77,0.15);
  color: var(--primary);
}
[data-theme="dark"] .tag-cloud-item {
  color: var(--primary);
}
/* 分页 */
[data-theme="dark"] .pagination a,
[data-theme="dark"] .pagination span {
  background: #241f17;
  color: var(--muted);
  border-color: var(--line);
}
[data-theme="dark"] .pagination a:hover {
  border-color: var(--primary);
  color: var(--primary);
}
[data-theme="dark"] .pagination .current {
  background: var(--primary);
  color: #14110c;
}
[data-theme="dark"] .pagination .extend {
  color: #7a6c58;
}
/* 博主卡社交图标 */
[data-theme="dark"] .author-social a {
  background: #241f17;
  color: var(--primary);
  border-color: var(--line);
}
[data-theme="dark"] .author-social a:hover {
  background: var(--primary);
  color: #14110c;
  border-color: var(--primary);
  box-shadow: 0 6px 14px rgba(255,151,0,0.35);
  transform: translateY(-3px) rotate(6deg);
}
[data-theme="dark"] .author-stats {
  color: var(--muted);
}
[data-theme="dark"] .author-stats b {
  color: var(--yellow);
}
/* 文章里的 table/blockquote/code 硬编码 */
[data-theme="dark"] .post-content blockquote {
  background: #241f17;
  border-left-color: var(--primary-deep);
  color: var(--muted);
}
[data-theme="dark"] .post-content table th {
  background: #2a251d;
  color: var(--yellow);
  border-color: var(--line);
}
[data-theme="dark"] .post-content tr:nth-child(even) td {
  background: rgba(255,184,77,0.04);
}
[data-theme="dark"] .post-content code {
  background: #2a251d;
  color: var(--sun);
}
[data-theme="dark"] .post-content .task-list-item input[type="checkbox"]:checked + * {
  color: #6a5a45;
  text-decoration: line-through;
}
/* 上下篇导航 */
[data-theme="dark"] .post-nav-item {
  background: #241f17;
  border-color: var(--line);
}
[data-theme="dark"] .post-nav-item:hover {
  background: #2a251d;
}
[data-theme="dark"] .post-nav-title {
  color: var(--text);
}
[data-theme="dark"] .post-nav-dir {
  color: var(--muted);
}
/* 归档 & 侧栏 widget 覆盖（比通用 .widget 更具体） */
[data-theme="dark"] .archive-item:hover {
  background: #241f17;
  transform: translateX(4px);
}
[data-theme="dark"] .sidebar-right .widget {
  background: var(--bg-soft);
  border-color: var(--line);
}
[data-theme="dark"] .sidebar-right .widget h3 {
  color: var(--yellow);
  border-color: var(--line);
}
/* Footer */
[data-theme="dark"] .site-footer {
  background: #1a1611;
  border-top-color: var(--line);
  color: var(--muted);
}
[data-theme="dark"] .footer-logo {
  color: var(--yellow);
}
[data-theme="dark"] .footer-head {
  color: var(--yellow);
}
[data-theme="dark"] .footer-bottom {
  color: var(--muted);
}
[data-theme="dark"] .social-link {
  border-color: var(--line);
  color: var(--muted);
}
/* abcjs 乐谱工具栏 */
[data-theme="dark"] .abc-controls {
  background: rgba(29,24,17,0.85);
  border-color: var(--line);
}
[data-theme="dark"] .abc-btn {
  background: transparent;
  color: var(--muted);
  border-color: var(--line);
}
[data-theme="dark"] .abc-btn:hover:not(:disabled) {
  background: var(--primary);
  color: #14110c;
  border-color: var(--primary);
}
[data-theme="dark"] .abc-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
[data-theme="dark"] .abc-btn.on {
  background: var(--primary);
  color: #14110c;
  border-color: var(--primary);
}
[data-theme="dark"] .abc-select {
  background: #241f17;
  color: var(--text);
  border-color: var(--line);
}
[data-theme="dark"] .abc-select option {
  background: #1d1811;
  color: var(--text);
}
[data-theme="dark"] .abc-range {
  accent-color: var(--primary);
}
[data-theme="dark"] .abc-tempo-label {
  color: var(--muted);
}
/* mermaid 容器 */
[data-theme="dark"] .mermaid-viewer {
  background: #241f17;
  border-color: var(--line);
}
[data-theme="dark"] .mermaid-toolbar {
  background: rgba(26,22,17,0.92);
  border-color: var(--line);
}
[data-theme="dark"] .mermaid-toolbar button {
  background: transparent;
  color: var(--muted);
}
[data-theme="dark"] .mermaid-toolbar button:hover {
  background: var(--primary);
  color: #14110c;
}
/* hero banner 上的标题白字（保持，因为 overlay 变暗了依然需要白字） */
/* .hero.has-banner .hero-title { color: #fff; } — 无需改 */
/* archive page hero 标题白字同理 */
/* lightbox */
[data-theme="dark"] .lightbox .lb-close,
[data-theme="dark"] .lightbox .lb-prev,
[data-theme="dark"] .lightbox .lb-next {
  background: rgba(20,17,12,0.75);
  color: var(--yellow);
}
/* 回到顶部按钮 */
[data-theme="dark"] .back-top {
  background: #241f17;
  border-color: var(--line);
  color: var(--primary);
}
[data-theme="dark"] .back-top:hover {
  background: var(--primary);
  color: #14110c;
}
/* 卡片封面 icon（白字保持，因为在图片半透明上） */
/* 无需改 */
/* 复制/折叠代码按钮 */
[data-theme="dark"] .copy-btn,
[data-theme="dark"] .code-expand {
  background: rgba(20,17,12,0.85);
  color: var(--muted);
}
[data-theme="dark"] .copy-btn:hover,
[data-theme="dark"] .code-expand:hover {
  background: var(--primary-deep);
  color: #14110c;
}
/* 音频播放器（右下角） */
[data-theme="dark"] .player-panel {
  background: rgba(29,24,17,0.95);
  border-color: var(--line);
}
[data-theme="dark"] .mp-inner {
  background: transparent;
}
[data-theme="dark"] .mp-title,
[data-theme="dark"] .mp-artist {
  color: var(--text);
}
[data-theme="dark"] .mp-btn {
  color: var(--muted);
}
[data-theme="dark"] .mp-btn:hover {
  color: var(--primary);
  background: rgba(255,184,77,0.15);
}
[data-theme="dark"] .mp-toggle {
  background: var(--primary);
  color: #14110c;
}
[data-theme="dark"] .mp-toggle:hover {
  background: var(--primary-deep);
  color: #14110c;
}
[data-theme="dark"] .mp-progress {
  background: #2a251d;
}
[data-theme="dark"] .mp-vol input {
  background: #2a251d;
}
[data-theme="dark"] .mp-time,
[data-theme="dark"] .mp-vol {
  color: var(--muted);
}
[data-theme="dark"] .mp-collapse {
  color: var(--muted);
}
[data-theme="dark"] .mp-collapse:hover {
  color: var(--primary);
  background: rgba(255,184,77,0.15);
}
[data-theme="dark"] .mp-float {
  background: var(--primary);
  color: #14110c;
}
[data-theme="dark"] .mp-float:hover {
  box-shadow: 0 12px 26px rgba(255,151,0,0.5);
}
[data-theme="dark"] .mp-cover {
  box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}
/* 博主卡 flip 按钮（白字保持，因为按钮是实心 primary 色） */
/* 文章元信息里的时间/标签 */
[data-theme="dark"] .post-meta {
  color: var(--muted);
}
[data-theme="dark"] .post-meta a {
  color: var(--muted);
}
[data-theme="dark"] .post-meta a:hover {
  color: var(--primary);
}
/* Admonition */
[data-theme="dark"] .admonition.note {
  --admonition-header-bg: rgba(255,151,0,0.22);
  --admonition-header-text: #ffb259;
  --admonition-bg: rgba(255,151,0,0.08);
}
[data-theme="dark"] .admonition.tip {
  --admonition-header-bg: rgba(255,184,77,0.24);
  --admonition-header-text: #ffc97b;
  --admonition-bg: rgba(255,184,77,0.08);
}
[data-theme="dark"] .admonition.info {
  --admonition-header-bg: rgba(100,130,180,0.24);
  --admonition-header-text: #80a4d4;
  --admonition-bg: rgba(100,130,180,0.08);
}
[data-theme="dark"] .admonition.warning {
  --admonition-header-bg: rgba(220,140,30,0.26);
  --admonition-header-text: #ffb040;
  --admonition-bg: rgba(220,140,30,0.08);
}
[data-theme="dark"] .admonition.danger {
  --admonition-header-bg: rgba(200,60,60,0.24);
  --admonition-header-text: #ff8080;
  --admonition-bg: rgba(200,60,60,0.08);
}
[data-theme="dark"] .admonition.success {
  --admonition-header-bg: rgba(80,150,80,0.24);
  --admonition-header-text: #90d090;
  --admonition-bg: rgba(80,150,80,0.08);
}
[data-theme="dark"] .admonition.question {
  --admonition-header-bg: rgba(150,100,200,0.22);
  --admonition-header-text: #c090e0;
  --admonition-bg: rgba(150,100,200,0.08);
}
@-moz-keyframes wiggle {
  0%, 88%, 100% {
    transform: rotate(0);
  }
  91% {
    transform: rotate(-12deg);
  }
  94% {
    transform: rotate(10deg);
  }
  97% {
    transform: rotate(-6deg);
  }
}
@-webkit-keyframes wiggle {
  0%, 88%, 100% {
    transform: rotate(0);
  }
  91% {
    transform: rotate(-12deg);
  }
  94% {
    transform: rotate(10deg);
  }
  97% {
    transform: rotate(-6deg);
  }
}
@-o-keyframes wiggle {
  0%, 88%, 100% {
    transform: rotate(0);
  }
  91% {
    transform: rotate(-12deg);
  }
  94% {
    transform: rotate(10deg);
  }
  97% {
    transform: rotate(-6deg);
  }
}
@keyframes wiggle {
  0%, 88%, 100% {
    transform: rotate(0);
  }
  91% {
    transform: rotate(-12deg);
  }
  94% {
    transform: rotate(10deg);
  }
  97% {
    transform: rotate(-6deg);
  }
}
@-moz-keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@-o-keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@-moz-keyframes authorFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}
@-webkit-keyframes authorFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}
@-o-keyframes authorFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}
@keyframes authorFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}
@-moz-keyframes wave-slide-a {
  from {
    background-position: 0 0;
  }
  to {
    background-position: -1200px 0;
  }
}
@-webkit-keyframes wave-slide-a {
  from {
    background-position: 0 0;
  }
  to {
    background-position: -1200px 0;
  }
}
@-o-keyframes wave-slide-a {
  from {
    background-position: 0 0;
  }
  to {
    background-position: -1200px 0;
  }
}
@keyframes wave-slide-a {
  from {
    background-position: 0 0;
  }
  to {
    background-position: -1200px 0;
  }
}
@-moz-keyframes wave-slide-b {
  from {
    background-position: 600px 0;
  }
  to {
    background-position: -600px 0;
  }
}
@-webkit-keyframes wave-slide-b {
  from {
    background-position: 600px 0;
  }
  to {
    background-position: -600px 0;
  }
}
@-o-keyframes wave-slide-b {
  from {
    background-position: 600px 0;
  }
  to {
    background-position: -600px 0;
  }
}
@keyframes wave-slide-b {
  from {
    background-position: 600px 0;
  }
  to {
    background-position: -600px 0;
  }
}
@-moz-keyframes code-reveal {
  from {
    opacity: 0.55;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@-webkit-keyframes code-reveal {
  from {
    opacity: 0.55;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@-o-keyframes code-reveal {
  from {
    opacity: 0.55;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes code-reveal {
  from {
    opacity: 0.55;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@-moz-keyframes preloader-spin {
  to {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes preloader-spin {
  to {
    transform: rotate(360deg);
  }
}
@-o-keyframes preloader-spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes preloader-spin {
  to {
    transform: rotate(360deg);
  }
}
@-moz-keyframes preloader-wave {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.45;
  }
  50% {
    transform: translateY(-9px);
    opacity: 1;
  }
}
@-webkit-keyframes preloader-wave {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.45;
  }
  50% {
    transform: translateY(-9px);
    opacity: 1;
  }
}
@-o-keyframes preloader-wave {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.45;
  }
  50% {
    transform: translateY(-9px);
    opacity: 1;
  }
}
@keyframes preloader-wave {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.45;
  }
  50% {
    transform: translateY(-9px);
    opacity: 1;
  }
}
@-moz-keyframes mp-pulse {
  0%, 100% {
    box-shadow: 0 8px 20px rgba(249,115,22,0.35);
  }
  50% {
    box-shadow: 0 8px 26px rgba(249,115,22,0.55), 0 0 0 6px rgba(255,151,0,0.12);
  }
}
@-webkit-keyframes mp-pulse {
  0%, 100% {
    box-shadow: 0 8px 20px rgba(249,115,22,0.35);
  }
  50% {
    box-shadow: 0 8px 26px rgba(249,115,22,0.55), 0 0 0 6px rgba(255,151,0,0.12);
  }
}
@-o-keyframes mp-pulse {
  0%, 100% {
    box-shadow: 0 8px 20px rgba(249,115,22,0.35);
  }
  50% {
    box-shadow: 0 8px 26px rgba(249,115,22,0.55), 0 0 0 6px rgba(255,151,0,0.12);
  }
}
@keyframes mp-pulse {
  0%, 100% {
    box-shadow: 0 8px 20px rgba(249,115,22,0.35);
  }
  50% {
    box-shadow: 0 8px 26px rgba(249,115,22,0.55), 0 0 0 6px rgba(255,151,0,0.12);
  }
}