/* 新主题共用的微交互。正文始终存在于 HTML 中，关闭脚本或动效也不会隐藏内容。 */
:root {
  --radius: 12px;
  --shadow: 0 10px 32px rgba(25, 35, 50, 0.06);
  --shadow-hover: 0 14px 36px rgba(25, 35, 50, 0.1);
}
:root.dark {
  --shadow: 0 10px 32px rgba(0, 0, 0, 0.16);
  --shadow-hover: 0 14px 36px rgba(0, 0, 0, 0.24);
}
body {
  transition:
    background-color 0.3s ease,
    color 0.25s ease;
}
.site-header,
.site-footer,
.article-card,
.sidebar-section,
.tag-list a,
.theme-toggle,
.menu-toggle,
.search-toggle,
.like-button,
.button,
.pagination a {
  transition:
    background-color 0.25s ease,
    color 0.2s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.25s ease;
}
.article-card {
  counter-increment: entry;
  animation: reader-enter 0.5s ease backwards;
}
.article-list {
  counter-reset: entry;
}
/* 局部模板只提供主题化的栏目标题，文章标题与正文保持可抓取的原始结构。 */
.theme-list-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  margin-bottom: 24px;
  color: var(--accent);
}
.theme-list-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
}
.theme-list-count {
  margin-left: auto;
  white-space: nowrap;
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}
.card-index::before {
  content: counter(entry, decimal-leading-zero);
}
.prose h2:target,
.prose h3:target {
  color: var(--accent);
}
.prose img {
  border-radius: var(--radius);
}
.reader-dialog .reader-dialog-header {
  background: var(--soft);
}
.article-card:nth-child(2) {
  animation-delay: 0.04s;
}
.article-card:nth-child(3) {
  animation-delay: 0.08s;
}
.article-card:nth-child(n + 4) {
  animation-delay: 0.12s;
}
.article-header,
.archive-header,
.search-header {
  animation: reader-enter 0.45s ease backwards;
}
@keyframes reader-enter {
  from {
    opacity: 0.65;
    transform: translateY(9px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
@keyframes menu-enter {
  from {
    opacity: 0.5;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}
.category-list a,
.toc a {
  transition:
    color 0.2s,
    background-color 0.2s,
    padding-left 0.2s;
}
.category-list a:hover {
  padding-left: 5px;
}
.tag-list a:hover {
  background: var(--soft);
}
.theme-toggle:hover svg {
  transform: rotate(18deg);
}
.theme-toggle svg {
  transition: transform 0.3s ease;
}
.site-banners {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.banner-slide {
  opacity: 1;
  visibility: visible;
  transition:
    opacity 0.55s ease,
    visibility 0s;
}
.banner-slide[aria-hidden="true"] {
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.55s ease,
    visibility 0s 0.55s;
}
.banner-dots button::after {
  transition:
    width 0.25s ease,
    background-color 0.25s ease;
}
.banner-dots button[aria-current]::after {
  width: 18px;
  border-radius: 4px;
}
.banner-controls button {
  min-width: 36px;
  min-height: 36px;
}
.prose {
  overflow-wrap: break-word;
}
.prose img {
  height: auto;
}
.prose blockquote {
  border-radius: 0 var(--radius) var(--radius) 0;
}
.article-shell > article,
.content-column,
.site-search,
.home-sidebar {
  min-width: 0;
}
/* 没有章节标题的短文不保留空目录栏。 */
.article-shell[data-has-toc="false"] {
  grid-template-columns: minmax(0, 1fr);
  max-width: 900px;
}
.article-shell[data-has-toc="false"] > article {
  grid-column: 1;
  grid-row: auto;
}
.back-to-top {
  box-shadow: var(--shadow);
}
.site-background .site-header {
  background-image: none;
}
.site-search {
  --pf-border-radius: var(--radius);
}
@media (hover: hover) and (pointer: fine) {
  .article-card:hover {
    transform: translateY(-3px);
  }
  .button:hover,
  .like-button:not(:disabled):hover {
    transform: translateY(-2px);
  }
}
@media (max-width: 760px) {
  .header-inner.navigation-ready > nav.is-open {
    animation: menu-enter 0.2s ease;
  }
  .header-inner.navigation-ready > nav a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .theme-toggle,
  .search-toggle,
  .menu-toggle {
    min-width: 40px;
    min-height: 40px;
  }
  .home-sidebar {
    display: none;
  }
  .article-card h2 {
    font-size: 22px;
  }
  .site-footer {
    padding-bottom: max(16px, env(safe-area-inset-bottom));
  }
}
/* 降低动态效果优先于各主题的动画和光标装饰，避免持续闪动。 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}