:root {
  --sticky-header-offset: 5.5rem;
  --admin-sticky-header-offset: 5.5rem;
}

html {
  min-height: 100%;
  font-size: 16px;
  scroll-behavior: smooth;
}

.scroll-anchor-target {
  scroll-margin-top: calc(var(--sticky-header-offset) + 1rem);
}

.admin-scroll-anchor-target {
  scroll-margin-top: calc(var(--admin-sticky-header-offset) + 1rem);
}

body {
  margin: 0;
  background-color: var(--color-surface-50);
  color: var(--color-surface-900);
  font-family: var(--font-sans);
}

.frontend-select-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.frontend-select-label {
  color: var(--theme-frontend-select-label);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25rem;
}

.frontend-select-shell {
  position: relative;
  display: block;
}

.frontend-select {
  appearance: none;
  -webkit-appearance: none;
  color-scheme: inherit;
  width: 100%;
  min-height: 3.25rem;
  border: 1px solid var(--theme-frontend-select-border);
  border-radius: 1rem;
  background: var(--theme-frontend-select-background);
  padding: 0.85rem 3rem 0.85rem 1rem;
  color: var(--theme-frontend-select-text);
  font-size: 0.875rem;
  line-height: 1.5rem;
  box-shadow: var(--theme-frontend-select-shadow);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.frontend-select:hover {
  border-color: var(--theme-frontend-select-border-hover);
  background: var(--theme-frontend-select-background-hover);
}

.frontend-select:focus {
  border-color: var(--theme-frontend-select-focus-border);
  box-shadow: var(--theme-frontend-select-focus-ring);
  transform: translateY(-1px);
}

.frontend-select option {
  background-color: var(--theme-surface-card);
  color: var(--theme-text-primary);
}

.frontend-select-icon {
  position: absolute;
  top: 50%;
  right: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--theme-frontend-select-icon);
  pointer-events: none;
  transform: translateY(-50%);
  transition: color 0.2s ease, transform 0.2s ease;
}

.frontend-select-shell:focus-within .frontend-select-icon {
  color: var(--theme-frontend-select-icon-active);
  transform: translateY(-50%) rotate(180deg);
}

.frontend-select-icon svg {
  width: 100%;
  height: 100%;
}

.frontend-search-suggestions {
  overflow: hidden;
  border: 1px solid var(--theme-frontend-search-suggestions-border);
  border-radius: 1rem;
  background-color: var(--theme-frontend-search-suggestions-background);
  box-shadow: var(--theme-frontend-search-suggestions-shadow);
}

.frontend-search-suggestion-item {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-bottom: 1px solid var(--theme-frontend-search-suggestion-divider);
  padding: 0.75rem 1rem;
  background: transparent;
  color: inherit;
  text-align: left;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.frontend-search-suggestion-item:last-child {
  border-bottom: 0;
}

.frontend-search-suggestion-item:hover,
.frontend-search-suggestion-item:focus-visible {
  background-color: var(--theme-frontend-search-suggestion-hover-background);
  outline: none;
}

.frontend-search-suggestion-text {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  color: var(--theme-frontend-search-suggestion-text);
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.875rem;
  font-weight: 500;
}

.frontend-search-suggestion-badge {
  flex-shrink: 0;
  border-radius: 9999px;
  background-color: var(--theme-frontend-search-suggestion-badge-background);
  padding: 0.25rem 0.625rem;
  color: var(--theme-frontend-search-suggestion-badge-text);
  font-size: 0.75rem;
  font-weight: 600;
}

.frontend-pagination-card {
  border: 1px solid var(--theme-frontend-pagination-border);
  border-radius: 1.5rem;
  background-color: var(--theme-frontend-pagination-background);
  box-shadow: var(--theme-frontend-pagination-shadow);
}

.frontend-pagination-summary {
  color: var(--theme-frontend-pagination-summary);
}

.frontend-pagination-link {
  border: 1px solid var(--theme-frontend-pagination-link-border);
  background-color: var(--theme-frontend-pagination-link-background);
  color: var(--theme-frontend-pagination-link-text);
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.frontend-pagination-link:hover {
  border-color: var(--theme-frontend-pagination-link-border-hover);
  background-color: var(--theme-frontend-pagination-link-background-hover);
  color: var(--theme-frontend-pagination-link-text);
  text-decoration: none;
}

.frontend-pagination-link:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--theme-brand-text) 18%, transparent);
}

.frontend-pagination-link-disabled {
  border-color: var(--theme-frontend-pagination-link-border);
  background-color: var(--theme-frontend-pagination-link-disabled-background);
  color: var(--theme-frontend-pagination-link-disabled-text);
}

.frontend-pagination-link-active {
  border-color: var(--theme-frontend-pagination-link-active-border);
  background-color: var(--theme-frontend-pagination-link-active-background);
  color: var(--theme-frontend-pagination-link-active-text);
}

.frontend-pagination-link-primary {
  border-color: var(--theme-frontend-pagination-link-primary-border);
  background-color: var(--theme-frontend-pagination-link-primary-background);
  color: var(--theme-frontend-pagination-link-primary-text);
}

.frontend-pagination-link-primary:hover {
  border-color: var(--theme-frontend-pagination-link-primary-border);
  background-color: var(--theme-frontend-pagination-link-primary-background-hover);
  color: var(--theme-frontend-pagination-link-primary-text);
}

.frontend-pagination-link-load-more {
  border-color: var(--theme-frontend-pagination-link-load-more-border);
  background-color: var(--theme-frontend-pagination-link-load-more-background);
  color: var(--theme-frontend-pagination-link-load-more-text);
}

.frontend-pagination-link-load-more:hover {
  border-color: var(--theme-frontend-pagination-link-load-more-border-hover);
  background-color: var(--theme-frontend-pagination-link-load-more-background-hover);
  color: var(--theme-frontend-pagination-link-load-more-text);
}

.frontend-pagination-ellipsis {
  color: var(--theme-frontend-pagination-ellipsis);
}

.frontend-primary-button {
  border: 1px solid var(--theme-frontend-primary-button-border);
  background-color: var(--theme-frontend-primary-button-background);
  color: var(--theme-frontend-primary-button-text);
  box-shadow: var(--theme-frontend-primary-button-shadow);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.frontend-primary-button:hover {
  border-color: var(--theme-frontend-primary-button-border);
  background-color: var(--theme-frontend-primary-button-background-hover);
  color: var(--theme-frontend-primary-button-text);
  text-decoration: none;
}

.frontend-primary-button:focus-visible {
  outline: none;
  box-shadow: var(--theme-frontend-primary-button-shadow), var(--theme-frontend-primary-button-focus-ring);
}

.frontend-primary-button:active {
  transform: translateY(1px);
}

@media (max-width: 640px) {
  .frontend-select {
    min-height: 3rem;
    padding-right: 2.75rem;
  }
}

.markdown-content {
  color: var(--color-surface-600);
  font-size: 1rem;
  line-height: 1.9;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-wrap: anywhere;
}

.markdown-content,
.markdown-content * {
  box-sizing: border-box;
}

.markdown-content > * {
  max-width: 100%;
  min-width: 0;
}

.markdown-content > *:first-child {
  margin-top: 0;
}

.markdown-content > *:last-child {
  margin-bottom: 0;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--color-surface-900);
  font-weight: 700;
  line-height: 1.3;
}

.markdown-content p,
.markdown-content ul,
.markdown-content ol,
.markdown-content blockquote,
.markdown-content pre,
.markdown-content table,
.markdown-table-wrapper {
  margin-bottom: 1.25rem;
}

.markdown-table-wrapper {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.markdown-content ul,
.markdown-content ol {
  padding-left: 1.5rem;
}

.markdown-content li + li {
  margin-top: 0.35rem;
}

.markdown-content a {
  color: var(--color-brand-600);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--color-brand-600) 35%, transparent);
  overflow-wrap: anywhere;
}

.markdown-content a:hover {
  color: var(--color-brand-700);
}

.markdown-content blockquote {
  margin-left: 0;
  border-left: 4px solid var(--color-brand-400);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  background-color: color-mix(in srgb, var(--color-brand-400) 14%, var(--theme-focus-surface));
  padding: 1rem 1.25rem;
  color: var(--color-surface-700);
}

.markdown-content code {
  border-radius: 0.5rem;
  background-color: var(--color-surface-200);
  padding: 0.15rem 0.4rem;
  color: var(--color-code-inline);
  font-size: 0.92em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.markdown-content pre {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-card);
  background-color: var(--theme-code-surface);
  padding: 1rem 1.25rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.markdown-content pre code {
  display: block;
  min-width: max-content;
  background-color: transparent;
  padding: 0;
  color: var(--theme-code-text);
  overflow-wrap: normal;
  word-break: normal;
}

.markdown-content img,
.markdown-content iframe,
.markdown-content video,
.markdown-content embed,
.markdown-content object {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-card);
}

.markdown-content iframe,
.markdown-content video,
.markdown-content embed,
.markdown-content object {
  width: 100%;
}

.markdown-content table {
  width: max-content;
  min-width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-surface-200);
  table-layout: auto;
  margin-bottom: 0;
}

.markdown-content th,
.markdown-content td {
  border: 1px solid var(--color-surface-200);
  padding: 0.85rem 1rem;
  text-align: left;
  vertical-align: top;
  white-space: nowrap;
}

.markdown-content p,
.markdown-content li,
.markdown-content blockquote,
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
  overflow-wrap: anywhere;
  word-break: break-word;
}

@media (max-width: 640px) {
  .markdown-content {
    font-size: 0.95rem;
    line-height: 1.8;
  }

  .markdown-content ul,
  .markdown-content ol {
    padding-left: 1.25rem;
  }

  .markdown-content blockquote {
    padding: 0.875rem 1rem;
  }

  .markdown-content pre {
    padding: 0.875rem 1rem;
  }

  .markdown-content th,
  .markdown-content td {
    padding: 0.75rem 0.875rem;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: break-word;
  }
}

.markdown-content thead {
  background-color: var(--color-surface-50);
}

.markdown-content:empty::before {
  content: "请输入 Markdown 内容后查看预览。";
  color: var(--color-surface-500);
}

.article-copy-protected {
  user-select: none;
  -webkit-user-select: none;
}

.article-copy-protected pre,
.article-copy-protected pre *,
.article-copy-protected [data-allow-copy],
.article-copy-protected [data-allow-copy] * {
  user-select: text;
  -webkit-user-select: text;
}

.markdown-editor-workspace {
  --markdown-workspace-height: auto;
}

.markdown-editor-toolbar {
  background: var(--theme-editor-toolbar-bg);
}

.admin-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  border-radius: 0.75rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25rem;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.admin-action-button:hover {
  text-decoration: none;
}

.admin-action-button:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--theme-brand-text) 15%, transparent);
}

.admin-action-button-brand {
  border: 1px solid color-mix(in srgb, var(--theme-brand-text) 22%, var(--theme-border-subtle));
  background-color: var(--theme-brand-surface);
  color: var(--theme-brand-text-strong);
}

.admin-action-button-brand:hover {
  border-color: color-mix(in srgb, var(--theme-brand-text) 36%, var(--theme-border-strong));
  background-color: var(--theme-brand-surface-strong);
  color: var(--theme-brand-text-strong);
}

.admin-action-button-danger {
  border: 1px solid color-mix(in srgb, var(--theme-danger-text) 18%, var(--theme-border-subtle));
  background-color: var(--theme-focus-surface);
  color: var(--theme-danger-text);
}

.admin-action-button-danger:hover {
  border-color: color-mix(in srgb, var(--theme-danger-text) 30%, var(--theme-border-strong));
  background-color: var(--theme-danger-surface);
  color: var(--theme-danger-text);
}

.admin-action-button-secondary {
  border: 1px solid var(--theme-border-subtle);
  background-color: var(--theme-focus-surface);
  color: var(--theme-text-secondary);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.admin-action-button-secondary:hover {
  border-color: var(--theme-border-strong);
  background-color: var(--theme-surface-muted);
  color: var(--theme-text-primary);
}

.admin-action-button-primary {
  border: 1px solid #0f172a;
  background-color: #0f172a;
  color: #f8fafc;
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.12);
}

.admin-action-button-primary:hover {
  border-color: #1e293b;
  background-color: #1e293b;
  color: #f8fafc;
}

.admin-action-button-success {
  border: 1px solid color-mix(in srgb, var(--theme-success-text) 40%, transparent);
  background-color: var(--theme-success-text);
  color: #f8fafc;
  box-shadow: 0 10px 18px color-mix(in srgb, var(--theme-success-text) 20%, transparent);
}

.admin-action-button-success:hover {
  border-color: color-mix(in srgb, var(--theme-success-text) 55%, transparent);
  background-color: color-mix(in srgb, var(--theme-success-text) 90%, #000 10%);
  color: #f8fafc;
}

.admin-action-button-danger-solid {
  border: 1px solid color-mix(in srgb, var(--theme-danger-text) 42%, transparent);
  background-color: var(--theme-danger-text);
  color: #f8fafc;
  box-shadow: 0 10px 18px color-mix(in srgb, var(--theme-danger-text) 18%, transparent);
}

.admin-action-button-danger-solid:hover {
  border-color: color-mix(in srgb, var(--theme-danger-text) 56%, transparent);
  background-color: color-mix(in srgb, var(--theme-danger-text) 90%, #000 10%);
  color: #f8fafc;
}

.markdown-editor-toolbar-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
  border: 1px solid var(--color-surface-200);
  border-radius: 0.85rem;
  background-color: var(--theme-surface-card);
  padding: 0.55rem 0.95rem;
  color: var(--color-surface-700);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.markdown-editor-toolbar-button:hover {
  border-color: var(--color-surface-300);
  background-color: var(--color-surface-50);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}

.markdown-editor-toolbar-button:focus-visible {
  outline: none;
  border-color: var(--color-brand-500);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-brand-500) 14%, var(--theme-focus-surface));
}

.markdown-editor-toolbar-button-primary {
  border-color: color-mix(in srgb, var(--color-brand-500) 30%, var(--theme-focus-surface));
  background: linear-gradient(180deg, color-mix(in srgb, var(--color-brand-500) 12%, var(--theme-focus-surface)), color-mix(in srgb, var(--color-brand-500) 20%, var(--theme-focus-surface)));
  color: var(--color-brand-700);
}

.markdown-editor-toolbar-button-primary:hover {
  border-color: color-mix(in srgb, var(--color-brand-500) 45%, var(--theme-focus-surface));
  background: linear-gradient(180deg, color-mix(in srgb, var(--color-brand-500) 18%, var(--theme-focus-surface)), color-mix(in srgb, var(--color-brand-500) 28%, var(--theme-focus-surface)));
}

.markdown-editor-history-bar {
  background: var(--theme-editor-history-bg);
}

.markdown-editor-history-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  border: 1px solid color-mix(in srgb, var(--color-brand-500) 18%, var(--theme-focus-surface));
  background-color: var(--theme-surface-card);
  padding: 0.4rem 0.8rem;
  color: var(--color-surface-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.markdown-editor-history-actions {
  display: inline-flex;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--color-surface-200);
  border-radius: 0.95rem;
  background-color: var(--theme-surface-card);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.markdown-editor-history-button {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border: 0;
  background: transparent;
  padding: 0.75rem 1rem;
  color: var(--color-surface-700);
  font-size: 0.875rem;
  font-weight: 700;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.markdown-editor-history-button + .markdown-editor-history-button {
  border-left: 1px solid var(--color-surface-200);
}

.markdown-editor-history-button:hover {
  background-color: var(--color-surface-50);
}

.markdown-editor-history-button:focus-visible {
  position: relative;
  z-index: 1;
  outline: none;
  background-color: color-mix(in srgb, var(--color-brand-500) 10%, var(--theme-focus-surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-brand-500) 32%, var(--theme-focus-surface));
}

.markdown-editor-history-button:disabled {
  cursor: not-allowed;
  background-color: var(--color-surface-100);
  color: var(--color-surface-400);
}

.markdown-editor-history-button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 9999px;
  background-color: var(--color-surface-100);
  color: var(--color-surface-700);
  font-size: 1rem;
  line-height: 1;
}

.markdown-editor-history-button:disabled .markdown-editor-history-button-icon {
  background-color: var(--color-surface-200);
  color: var(--color-surface-400);
}

.markdown-editor-pane {
  min-width: 0;
}

.markdown-editor-input,
.markdown-editor-pane-body {
  box-sizing: border-box;
}

.markdown-editor-input {
  overflow: auto;
}

.markdown-editor-pane-preview .markdown-editor-pane-body {
  overflow-y: auto;
}

.markdown-editor-resize-handle {
  cursor: ns-resize;
  user-select: none;
}

.markdown-editor-resize-handle-bars {
  display: inline-flex;
  flex-direction: column;
  gap: 0.25rem;
}

.markdown-editor-resize-handle-bars span {
  display: block;
  width: 2.5rem;
  height: 0.1875rem;
  border-radius: 9999px;
  background-color: var(--color-surface-300);
}

body.markdown-editor-resizing {
  cursor: ns-resize;
  user-select: none;
}

@media (min-width: 1024px) {
  .markdown-editor-workspace {
    height: var(--markdown-workspace-height, min(70vh, 52rem));
    min-height: 32rem;
  }

  .markdown-editor-pane {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .markdown-editor-pane-body {
    flex: 1 1 auto;
    min-height: 0;
  }

  .markdown-editor-pane-editor .markdown-editor-pane-body {
    overflow: auto;
  }

  .markdown-editor-pane-editor .markdown-editor-input {
    height: 100%;
  }

  .markdown-editor-pane-preview .markdown-editor-pane-body {
    max-height: 100%;
  }
}

@media (max-width: 1023.98px) {
  .markdown-editor-pane-preview .markdown-editor-pane-body {
    max-height: 45vh;
  }
}

.admin-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-color: var(--theme-surface-card);
  border-radius: 1rem;
  border-color: var(--color-surface-200);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 0 0 1px var(--theme-select-inner-highlight) inset;
  background-image: var(--theme-select-arrow);
  background-position: right 1rem center;
  background-repeat: no-repeat;
  background-size: 1rem;
  cursor: pointer;
  padding-right: 3rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.admin-select:hover {
  border-color: var(--color-surface-300);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.06), 0 0 0 1px var(--theme-select-inner-highlight-strong) inset;
}

.admin-select:focus {
  background-color: var(--theme-surface-card);
  border-color: var(--color-brand-500);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--color-brand-500) 12%, var(--theme-focus-surface)), 0 4px 12px rgba(14, 116, 144, 0.08);
  transform: translateY(-1px);
}

.admin-select:disabled {
  cursor: not-allowed;
  background-color: var(--color-surface-100);
  color: var(--color-surface-500);
  box-shadow: none;
}

.admin-select option {
  background-color: var(--theme-surface-card);
  color: var(--color-surface-900);
}