/* Butterfly：浅色/深色半透明毛玻璃，适配背景图 */

:root {
  --global-bg: transparent;
  --card-bg: rgba(255, 255, 255, 0.58);
  --sidebar-bg: rgba(255, 255, 255, 0.72);
  --sidebar-menu-bg: rgba(255, 255, 255, 0.78);
  --search-bg: rgba(255, 255, 255, 0.78);
  --zoom-bg: rgba(255, 255, 255, 0.92);
  --glass-blur: 18px;
  --glass-saturate: 1.25;
  --glass-border: rgba(255, 255, 255, 0.45);
  --card-box-shadow: 0 8px 28px rgba(7, 17, 27, 0.06);
  --card-hover-box-shadow: 0 10px 32px rgba(7, 17, 27, 0.12);
}

[data-theme='dark'] {
  --global-bg: transparent;
  --card-bg: rgba(22, 22, 24, 0.55);
  --sidebar-bg: rgba(22, 22, 24, 0.72);
  --sidebar-menu-bg: rgba(32, 32, 36, 0.78);
  --search-bg: rgba(22, 22, 24, 0.78);
  --zoom-bg: rgba(18, 18, 18, 0.92);
  --glass-border: rgba(255, 255, 255, 0.1);
  --card-box-shadow: 0 8px 28px rgba(0, 0, 0, 0.28);
  --card-hover-box-shadow: 0 10px 32px rgba(0, 0, 0, 0.4);
}

/* 深色模式减弱背景遮罩，让壁纸更清晰 */
[data-theme='dark'] #web_bg::before {
  background-color: rgba(0, 0, 0, 0.32) !important;
}

.bf-glass,
.layout > div:first-child:not(.nc),
#aside-content .card-widget,
#recent-posts > .recent-post-item,
#page-header.nav-fixed > #nav,
#page-header.not-top-img > #nav,
#sidebar #sidebar-menus,
#footer,
#rightside > div > button,
#card-toc {
  background-color: var(--card-bg) !important;
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
}

.layout .pagination > *:not(.space):not(.current) {
  background-color: var(--card-bg) !important;
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
}

#page-header.nav-fixed > #nav,
#page-header.not-top-img > #nav {
  border-left: none;
  border-right: none;
  border-top: none;
  box-shadow: 0 4px 18px rgba(7, 17, 27, 0.06);
}

[data-theme='dark'] #page-header.nav-fixed > #nav,
[data-theme='dark'] #page-header.not-top-img > #nav {
  background: rgba(22, 22, 24, 0.55) !important;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
}

#sidebar #sidebar-menus {
  background: var(--sidebar-menu-bg) !important;
}

#footer {
  background-image: none !important;
  border-left: none;
  border-right: none;
  border-bottom: none;
}

#rightside > div > button {
  border-radius: 8px;
}

/* 搜索面板同样半透明 */
#algolia-search .search-dialog,
#local-search .search-dialog,
#search-mask {
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  backdrop-filter: blur(10px) saturate(1.1);
}

#algolia-search .search-dialog,
#local-search .search-dialog {
  background: var(--search-bg) !important;
  border: 1px solid var(--glass-border);
}

/* 加载页：左右门板透明底，背景图由 layout 与站点 background 同步 */
#loading-box .loading-left-bg,
#loading-box .loading-right-bg {
  background-color: transparent !important;
}

#loading-box .configure-core {
  background-color: var(--card-bg) !important;
  -webkit-backdrop-filter: blur(8px) saturate(1.2);
  backdrop-filter: blur(8px) saturate(1.2);
}

#loading-box .loading-word {
  color: #fff !important;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.55), 0 0 12px rgba(0, 0, 0, 0.25);
}

/* 代码块保持更高不透明度，保证可读性 */
#article-container figure.highlight,
#article-container pre,
#article-container .code-area {
  background-color: rgba(255, 255, 255, 0.82) !important;
}

[data-theme='dark'] #article-container figure.highlight,
[data-theme='dark'] #article-container pre,
[data-theme='dark'] #article-container .code-area {
  background-color: rgba(28, 28, 30, 0.88) !important;
}

/* 深色模式星空粒子（与安知鱼同级：盖在背景之上、可穿透点击） */
canvas#universe {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
  pointer-events: none;
}

[data-theme='dark'] canvas#universe {
  display: block;
}

/* 缩小各页卡片与浏览器窗口的左右间距 */
.layout {
  max-width: min(1680px, 98vw) !important;
  padding-left: 60px !important;
  padding-right: 60px !important;
}

.layout.hide-aside {
  max-width: min(1400px, 98vw) !important;
}

@media screen and (max-width: 768px) {
  .layout {
    padding-left: 4px !important;
    padding-right: 4px !important;
  }
}

@media screen and (min-width: 2000px) {
  .layout {
    max-width: min(1840px, 96vw) !important;
  }
  .layout.hide-aside {
    max-width: min(1600px, 96vw) !important;
  }
}

/* 不支持 backdrop-filter 时略提高不透明度 */
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  :root {
    --card-bg: rgba(255, 255, 255, 0.92);
  }
  [data-theme='dark'] {
    --card-bg: rgba(22, 22, 24, 0.92);
  }
}