/* Plain article layout */
body.pretty-plain-page {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--pretty-bg);
  color: var(--pretty-text);
  font-family: var(--pretty-font-sans);
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.pretty-plain-page #content {
  width: min(100%, var(--pretty-rail));
  max-width: var(--pretty-rail);
  margin: 0 auto;
  padding: 118px var(--pretty-gutter) 92px;
  box-sizing: border-box;
}

body.pretty-plain-page #content > .container {
  width: 100%;
  max-width: none;
  margin: 0 auto !important;
  padding: 0 !important;
  box-sizing: border-box;
}

.pretty-plain-page-shell {
  display: grid;
  grid-template-columns: minmax(0, min(100%, 820px)) minmax(220px, 260px);
  align-items: start;
  justify-content: center;
  gap: 56px;
  width: 100%;
}

.pretty-plain-article {
  min-width: 0;
  max-width: 820px;
  color: var(--pretty-text);
  overflow-wrap: anywhere;
}

/* The leading article link is the "back" navigation link. */
.pretty-plain-article > a:first-child {
  display: inline-block;
  margin-bottom: 45px;
}

.pretty-plain-title {
  max-width: 780px;
  margin: 0 0 30px;
  color: var(--pretty-primary);
  font-size: 54px;
  font-weight: 700;
  line-height: 1.08;
}

.pretty-plain-heading {
  scroll-margin-top: calc(var(--pretty-nav-height) + 32px);
  color: var(--pretty-primary);
  font-weight: 650;
}

.pretty-plain-heading-level-1 {
  margin: 58px 0 16px;
  padding-top: 24px;
  border-top: 1px solid var(--pretty-border);
  font-size: 34px;
  line-height: 1.18;
}

.pretty-plain-heading-level-2 {
  margin: 44px 0 14px;
  font-size: 26px;
  line-height: 1.25;
}

.pretty-plain-heading-level-3 {
  margin: 34px 0 10px;
  font-size: 20px;
  line-height: 1.35;
}

.pretty-plain-heading-level-4 {
  margin: 28px 0 8px;
  color: var(--pretty-text);
  font-size: 17px;
  line-height: 1.42;
}

.pretty-plain-heading-level-5 {
  margin: 24px 0 8px;
  color: var(--pretty-text);
  font-size: 15px;
  line-height: 1.45;
}

.pretty-plain-article p,
.pretty-plain-article ul,
.pretty-plain-article ol,
.pretty-plain-article blockquote,
.pretty-plain-article aside,
.pretty-plain-article pre,
.pretty-plain-article table,
.pretty-plain-article .table-wrapper,
.pretty-plain-article figure,
.pretty-plain-article picture,
.pretty-plain-article video,
.pretty-plain-article [id^="chart-"],
.pretty-plain-article hr {
  margin-top: 0;
}

.pretty-plain-article p,
.pretty-plain-article li,
.pretty-plain-article aside,
.pretty-plain-article blockquote {
  color: var(--pretty-text-soft);
  font-size: 17px;
  line-height: 1.72;
}

.pretty-plain-article a:not(.pretty-plain-toc-link):not(.pretty-plain-toc-link-mobile),
.pretty-plain-article a:visited:not(.pretty-plain-toc-link):not(.pretty-plain-toc-link-mobile) {
  color: var(--pretty-text);
  font-weight: 700;
  text-underline-offset: 3px;
  text-decoration: underline;
  text-decoration-color: color-mix(in oklch, #728A42 30%, transparent);
  text-decoration-thickness: 2px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.pretty-plain-article a:hover:not(.pretty-plain-toc-link):not(.pretty-plain-toc-link-mobile) {
  color: var(--pretty-primary);
  text-decoration-color: var(--pretty-zig-orange);
}

.pretty-plain-article strong {
  color: var(--pretty-text);
  font-weight: 700;
}

.pretty-plain-article em {
  color: var(--pretty-text);
}

.pretty-plain-article ul,
.pretty-plain-article ol {
  padding-left: 1.4rem;
}

.pretty-plain-article li {
  margin: 7px 0;
  padding-left: 3px;
}

.pretty-plain-article li > ul,
.pretty-plain-article li > ol {
  margin-top: 8px;
  margin-bottom: 8px;
}

.pretty-plain-article blockquote {
  border-left: 3px solid var(--pretty-zig-orange);
  padding: 3px 0 3px 18px;
  color: var(--pretty-text);
}

.pretty-plain-article aside {
  border-left: 3px solid var(--pretty-border-strong);
  padding: 2px 0 2px 18px;
  color: var(--pretty-text-muted);
}

.pretty-plain-article hr {
  height: 1px;
  border: 0;
  background: var(--pretty-border);
}

.pretty-plain-article code,
.pretty-plain-article samp,
.pretty-plain-article kbd {
  border: 1px solid var(--pretty-code-border);
  border-radius: var(--pretty-radius-sm);
  padding: 0.08em 0.34em;
  background: var(--pretty-code-output);
  color: var(--pretty-code-text);
  font-family: var(--pretty-font-mono);
  font-size: 0.9em;
}

.pretty-plain-article pre {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--pretty-code-border);
  border-radius: var(--pretty-radius-sm);
  padding: 18px;
  background: var(--pretty-code-surface);
  color: var(--pretty-code-text);
  line-height: 1.58;
  box-shadow: 0 1px 2px color-mix(in oklch, black 4%, transparent);
}

.pretty-plain-article pre code,
.pretty-plain-article pre samp {
  display: block;
  min-width: max-content;
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: 14px;
  line-height: inherit;
}

.pretty-plain-article .pretty-code-block {
  overflow: hidden;
  border: 1px solid var(--pretty-code-border);
  border-radius: var(--pretty-radius-xl);
  background: #ffffff !important;
  margin-bottom: 20px;
  box-shadow: 0 1px 2px color-mix(in oklch, black 4%, transparent);
}

.pretty-plain-article .pretty-code-block pre {
  border: 0;
  border-radius: var(--pretty-radius-sm);
  padding: 20px;
  background: var(--pretty-code-surface);
}

.pretty-plain-article .pretty-code-block pre code,
.pretty-plain-article .pretty-code-block pre samp,
.pretty-plain-article .pretty-code-block pre kbd {
  border: 0;
  padding: 0;
  background: transparent;
  color: inherit;
}

.pretty-plain-article .pretty-code-block pre code,
.pretty-plain-article .pretty-code-block pre samp {
  display: block;
  min-width: max-content;
  font-size: 14px;
  line-height: inherit;
}

.pretty-plain-article .table-wrapper {
  max-width: 100%;
  overflow-x: auto;
}

.pretty-plain-article table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.5;
}

.pretty-plain-article th,
.pretty-plain-article td {
  border: 1px solid var(--pretty-border);
  padding: 10px 12px;
  vertical-align: top;
}

.pretty-plain-article th {
  background: var(--pretty-panel);
  color: var(--pretty-primary);
  font-weight: 700;
  text-align: left;
}

.pretty-plain-article figure {
  max-width: 100%;
  margin-left: 0;
  margin-right: 0;
  overflow: visible;
  box-sizing: border-box;
}

.pretty-plain-article img,
.pretty-plain-article picture,
.pretty-plain-article video {
  max-width: 100%;
  height: auto;
  box-sizing: border-box;
}

.pretty-plain-article picture {
  display: block;
}

.pretty-plain-article img,
.pretty-plain-article video {
  display: block;
  object-fit: contain;
}

video,
.pretty-plain-article img {
  border-radius: var(--pretty-radius-xl);
}

/* Preserve legacy image spacing without putting the bitmap inside the rounded box. */
.pretty-plain-article img[style*="padding"] {
  margin: 1em;
  padding: 0 !important;
}

.pretty-plain-article svg,
.pretty-plain-article canvas {
  max-width: 100%;
  box-sizing: border-box;
}

.pretty-plain-article [id^="chart-"] {
  width: 100%;
  max-width: 100%;
  padding-inline: clamp(18px, 5%, 42px);
  overflow: visible;
  box-sizing: border-box;
}

.pretty-plain-article [id^="chart-"] > svg {
  display: block;
  width: 100% !important;
  max-width: 100% !important;
  height: 100%;
  box-sizing: border-box;
}

/* Chartist 图表移动端适配 (钩子: chartist-hook.js): 压缩高度、缩小标签、饼图标签不被裁剪 */
@media (max-width: 767px) {
  .pretty-plain-article [id^="chart-"] {
    height: 18em !important;
  }

  .pretty-plain-article .ct-label {
    font-size: 0.625rem;
  }

  .pretty-plain-article .ct-chart-pie {
    overflow: visible;
  }
}

.pretty-plain-article iframe,
.pretty-plain-article embed,
.pretty-plain-article object {
  display: block;
  max-width: 100%;
  box-sizing: border-box;
}

.pretty-plain-toc {
  min-width: 0;
  border-left: 0;
  padding-left: 0;
}

.pretty-plain-desktop-toc {
  position: sticky;
  top: calc(var(--pretty-nav-height) + 28px);
  max-height: calc(100vh - var(--pretty-nav-height) - 56px);
  overflow-y: auto;
}

.pretty-plain-desktop-toc.pretty-plain-toc-fade-bottom {
  -webkit-mask-image: linear-gradient(
    to bottom,
    #000 0,
    #000 calc(100% - 32px),
    transparent 100%
  );
  mask-image: linear-gradient(
    to bottom,
    #000 0,
    #000 calc(100% - 32px),
    transparent 100%
  );
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

.pretty-plain-toc-title {
  margin: 0 0 12px;
  color: oklch(0.707 0.022 261.325);
  font-size: 0.6875rem;
  font-weight: 600;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--pretty-font-mono);
}

.pretty-plain-toc-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pretty-plain-toc-item {
  min-width: 0;
}

.pretty-plain-toc-level-2,
.pretty-plain-toc-level-3 {
  padding-left: 0;
}

.pretty-plain-toc-link {
  display: block;
  min-width: 0;
  box-sizing: border-box;
  border-left: 1px solid oklch(0.13 0.028 261.692 / 0.1);
  border-radius: 0;
  padding: 4px 12px;
  background: transparent;
  color: oklch(0.707 0.022 261.325);
  font-family: Inter, system-ui, -apple-system, sans-serif;
  font-size: 13px;
  font-weight: 400;
  line-height: 20.8px;
  text-decoration: none;
  overflow-wrap: anywhere;
  transition:
    color 0.15s,
    border-color 0.15s;
}

.pretty-plain-toc-link:hover {
  border-left-color: oklch(0.707 0.022 261.325);
  background: transparent;
  color: oklch(0.373 0.034 259.733);
}

.pretty-plain-toc-active,
.pretty-plain-toc-active:hover {
  border-left-color: oklch(0.13 0.028 261.692);
  background: transparent;
  color: oklch(0.13 0.028 261.692);
  font-weight: 500;
}

.pretty-plain-mobile-toc {
  display: none;
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos {
  display: flex;
  flex-direction: column;
  align-items: center;
  /* 行间距 30px (由 JS 分组的 .pretty-sponsor-row 容器间 gap 控制) */
  gap: 30px;
  margin: 50px 0;
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos .pretty-sponsor-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  /* 行内 logo 间距 30px */
  gap: 30px;
  max-width: 100%;
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos img,
body.pretty-plain-page-zsf .pretty-plain-article .sponsor-logo img {
  width: auto;
  max-width: var(--pretty-sponsor-logo-width);
  max-height: var(--pretty-sponsor-logo-height);
  height: auto;
  object-fit: contain;
  border-radius: 0;
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos a {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  background: transparent !important;
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos .span2 {
  grid-column: auto;
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos .span2 img {
  max-width: var(--pretty-sponsor-logo-width);
  max-height: var(--pretty-sponsor-logo-height);
  height: auto;
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos .pretty-sponsor-break {
  display: none;
}

@media (max-width: 767px) {
  body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos img,
  body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos .span2 img {
    max-width: 150px;
  }
}

body.pretty-plain-page-zsf .pretty-plain-article .monetary-logos picture {
  display: flex;
  align-items: center;
  justify-content: center;
  width: auto;
  padding: 0;
}

@media (prefers-color-scheme: dark) {
  body.pretty-plain-page {
    background: var(--pretty-bg);
  }

  .pretty-plain-toc-title {
    color: oklch(0.446 0.03 256.802);
  }

  .pretty-plain-toc-link {
    border-left-color: oklch(0.373 0.034 259.733);
    color: oklch(0.373 0.034 259.733);
  }

  .pretty-plain-toc-link:hover {
    border-left-color: oklch(0.707 0.022 261.325);
    color: oklch(0.707 0.022 261.325);
  }

  .pretty-plain-toc-active,
  .pretty-plain-toc-active:hover {
    border-left-color: #fff;
    color: #fff;
  }

  .pretty-plain-article code,
  .pretty-plain-article samp,
  .pretty-plain-article kbd {
    background: var(--pretty-code-output);
  }

  .pretty-plain-article .pretty-code-block {
    background: var(--pretty-code-surface) !important;
  }

  .pretty-plain-article .pretty-code-block pre code,
  .pretty-plain-article .pretty-code-block pre samp,
  .pretty-plain-article .pretty-code-block pre kbd {
    background: transparent;
  }

}

@media (max-width: 980px) {
  body.pretty-plain-page #content {
    padding-top: 96px;
    padding-bottom: 72px;
  }

  .pretty-plain-page-shell {
    grid-template-columns: 1fr;
    gap: 0;
    justify-content: stretch;
  }

  .pretty-plain-article {
    max-width: none;
  }

  .pretty-plain-title {
    margin-bottom: 18px;
    font-size: 40px;
    line-height: 1.14;
  }

  .pretty-plain-desktop-toc {
    display: none;
  }

  .pretty-plain-mobile-toc {
    display: block;
    margin: 0 0 28px;
  }

  /* 全宽条 trigger: 视觉延续原折叠卡片 */
  .pretty-plain-mobile-toc-trigger {
    display: flex;
    width: 100%;
    min-height: 44px;
    justify-content: space-between;
    padding: 0 14px;
    border: 1px solid var(--pretty-border);
    border-radius: var(--pretty-radius-sm);
    background: var(--pretty-card-soft);
    color: var(--pretty-primary);
    font-size: 14px;
    font-weight: 750;
    line-height: 1;
  }

  /* 面板贴内容宽度, 长目录内部滚动 */
  .pretty-plain-mobile-toc-panel {
    width: 100%;
    max-width: none;
    max-height: min(70vh, 640px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  /* 面板内列表不受正文列表排版影响 (ol 缩进 / li 间距与左 padding) */
  .pretty-plain-mobile-toc-panel ol,
  .pretty-plain-mobile-toc-panel li {
    margin: 0;
    padding: 0;
  }

}

@media (max-width: 760px) {
  body.pretty-plain-page #content {
    padding-top: 88px;
  }

  .pretty-plain-title {
    font-size: 34px;
  }

  .pretty-plain-heading-level-1 {
    margin-top: 44px;
    font-size: 28px;
  }

  .pretty-plain-heading-level-2 {
    margin-top: 34px;
    font-size: 23px;
  }

  .pretty-plain-heading-level-3 {
    font-size: 19px;
  }

  .pretty-plain-article p,
  .pretty-plain-article li,
  .pretty-plain-article aside,
  .pretty-plain-article blockquote {
    font-size: 16px;
  }

  .pretty-plain-article table {
    min-width: 560px;
  }
}