/* ============================================
   个人知识库 - 样式表
   设计系统：CSS 变量 | 移动优先 | 4px/8px 间距
   ============================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-primary-bg: #eff6ff;

  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-sidebar: #1e293b;
  --color-sidebar-hover: #334155;
  --color-sidebar-active: #0f172a;

  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;
  --color-text-sidebar: #cbd5e1;
  --color-text-sidebar-muted: #64748b;

  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-success: #10b981;
  --color-warning: #f59e0b;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.05);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", "Menlo", "Monaco", "Consolas", monospace;

  --sidebar-width: 280px;
  --topbar-height: 56px;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  display: flex;
  min-height: 100vh;
}

/* 登录状态下隐藏主界面 */
body.auth-locked .topbar,
body.auth-locked .sidebar,
body.auth-locked .main,
body.auth-locked .overlay,
body.auth-locked .modal,
body.auth-locked .toast {
  display: none !important;
}
body.auth-locked {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

/* ---------- 登录页 ---------- */
.auth-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  z-index: 999;
  align-items: center;
  justify-content: center;
}
body.auth-locked .auth-overlay {
  display: flex;
}

.auth-card {
  background: #fff;
  border-radius: 16px;
  padding: 40px 36px;
  width: 400px;
  max-width: 90vw;
  box-shadow: 0 25px 50px rgba(0,0,0,0.3);
  animation: authSlideIn 0.4s ease;
}
@keyframes authSlideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-card__brand {
  text-align: center;
  margin-bottom: 28px;
}
.auth-card__icon {
  font-size: 3rem;
  margin-bottom: 8px;
}
.auth-card__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #1e293b;
}
.auth-card__subtitle {
  font-size: 0.8125rem;
  color: #64748b;
  margin-top: 6px;
  line-height: 1.5;
}

.auth-card__form {
  margin-bottom: 20px;
}
.auth-card__form .input {
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  margin-bottom: 12px;
}
.auth-card__form .btn--primary {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  margin-top: 4px;
}

.auth-card__hint {
  font-size: 0.75rem;
  color: #94a3b8;
  text-align: center;
  margin-top: 8px;
}
.auth-card__error {
  font-size: 0.8125rem;
  color: #ef4444;
  text-align: center;
  margin-bottom: 8px;
  min-height: 20px;
}

.auth-card__footer {
  text-align: center;
  font-size: 0.6875rem;
  color: #94a3b8;
}

/* 登出按钮样式 */
.btn--logout {
  color: #f87171 !important;
}
.btn--logout:hover {
  background: rgba(239,68,68,0.15) !important;
  color: #ef4444 !important;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ---------- 按钮系统 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  transition: all var(--transition-fast);
  white-space: nowrap;
  background: transparent;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover { background: var(--color-primary-hover); }

.btn--outline {
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn--outline:hover { background: var(--color-border-light); }

.btn--ghost {
  color: var(--color-text-secondary);
}
.btn--ghost:hover { background: var(--color-border-light); color: var(--color-text); }

.btn--danger {
  background: var(--color-danger);
  color: #fff;
}
.btn--danger:hover { background: var(--color-danger-hover); }

.btn--sm { padding: 5px 12px; font-size: 0.8125rem; }
.btn--xs { padding: 3px 8px; font-size: 0.75rem; }
.btn--full { width: 100%; }

.btn--tab {
  border-radius: 4px;
  color: var(--color-text-secondary);
  background: transparent;
}
.btn--tab.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ---------- 表单 ---------- */
.input, .select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 0.875rem;
  transition: border-color var(--transition-fast);
}
.input:focus, .select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.input--sm { padding: 5px 10px; font-size: 0.8125rem; }

.select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right 8px center;
  background-repeat: no-repeat;
  background-size: 16px;
  padding-right: 32px;
}

/* ---------- 顶部导航栏（移动端） ---------- */
.topbar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  background: var(--color-sidebar);
  color: #fff;
  z-index: 100;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
}
.topbar__menu-btn, .topbar__search-btn {
  background: none;
  border: none;
  color: #fff;
  display: flex;
  align-items: center;
  padding: 4px;
}
.topbar__title {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
}

/* ---------- 遮罩层 ---------- */
.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 90;
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.overlay.active {
  display: block;
  opacity: 1;
}

/* ---------- 侧边栏 ---------- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--color-sidebar);
  color: var(--color-text-sidebar);
  display: flex;
  flex-direction: column;
  z-index: 95;
  overflow-y: auto;
  overflow-x: hidden;
  transition: transform var(--transition-normal);
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--color-sidebar-hover); border-radius: 2px; }

.sidebar__header {
  padding: 24px 20px 16px;
  border-bottom: 1px solid var(--color-sidebar-hover);
}
.sidebar__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}
.sidebar__subtitle {
  font-size: 0.75rem;
  color: var(--color-text-sidebar-muted);
  margin-top: 4px;
}

.sidebar__search {
  position: relative;
  margin: 16px;
}
.sidebar__search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-sidebar-muted);
  pointer-events: none;
}
.sidebar__search-input {
  width: 100%;
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--color-sidebar-hover);
  border-radius: var(--radius-sm);
  background: var(--color-sidebar-active);
  color: #fff;
  font-size: 0.8125rem;
  transition: border-color var(--transition-fast);
}
.sidebar__search-input::placeholder { color: var(--color-text-sidebar-muted); }
.sidebar__search-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.sidebar__actions {
  padding: 0 16px;
  margin-bottom: 8px;
}

.sidebar__nav {
  padding: 0 12px;
}
.sidebar__nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--color-text-sidebar);
  transition: all var(--transition-fast);
}
.sidebar__nav-item:hover { background: var(--color-sidebar-hover); }
.sidebar__nav-item.active { background: var(--color-primary); color: #fff; }
.sidebar__nav-count {
  margin-left: auto;
  font-size: 0.75rem;
  background: var(--color-sidebar-hover);
  padding: 2px 8px;
  border-radius: 10px;
  color: var(--color-text-sidebar-muted);
}
.sidebar__nav-item.active .sidebar__nav-count {
  background: rgba(255,255,255,0.25);
  color: #fff;
}

.sidebar__section {
  padding: 16px 20px;
  border-top: 1px solid var(--color-sidebar-hover);
}
.sidebar__section-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-sidebar-muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar__section-action {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--color-text-sidebar-muted);
  font-size: 0.875rem;
  cursor: pointer;
  padding: 2px;
}
.sidebar__section-action:hover { color: #fff; }

.sidebar__category-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sidebar__category-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-text-sidebar);
}
.sidebar__category-item:hover { background: var(--color-sidebar-hover); }
.sidebar__category-item.active {
  background: var(--color-primary);
  color: #fff;
}
.sidebar__category-item--empty {
  color: var(--color-text-sidebar-muted);
  cursor: default;
  font-style: italic;
}
.sidebar__category-item--empty:hover { background: transparent; }
.sidebar__category-count {
  margin-left: auto;
  font-size: 0.6875rem;
  opacity: 0.7;
}

.sidebar__tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sidebar__tag {
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--color-sidebar-hover);
  color: var(--color-text-sidebar);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}
.sidebar__tag:hover { background: var(--color-primary); color: #fff; }
.sidebar__tag.active { background: var(--color-primary); color: #fff; }
.sidebar__tag-empty {
  font-size: 0.75rem;
  color: var(--color-text-sidebar-muted);
  font-style: italic;
}

.sidebar__footer {
  margin-top: auto;
  padding: 16px;
  display: flex;
  gap: 8px;
  border-top: 1px solid var(--color-sidebar-hover);
}
.sidebar__footer .btn--ghost {
  color: var(--color-text-sidebar-muted);
  font-size: 0.75rem;
}
.sidebar__footer .btn--ghost:hover { color: #fff; }

/* ---------- 主内容区 ---------- */
.main {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  padding: 32px;
  max-width: calc(100% - var(--sidebar-width));
}

.view {
  max-width: 900px;
  margin: 0 auto;
  animation: fadeIn 0.25s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 文章列表 ---------- */
.list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.list-header__title {
  font-size: 1.5rem;
  font-weight: 700;
}
.list-header__sort .select {
  width: auto;
  font-size: 0.8125rem;
  padding: 6px 28px 6px 10px;
}

.article-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.article-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.article-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.article-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.article-card__excerpt {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.article-card__meta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}
.article-card__category {
  background: var(--color-primary-light);
  color: var(--color-primary);
  padding: 2px 10px;
  border-radius: 10px;
  font-weight: 500;
}
.article-card__tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.article-card__tag {
  background: var(--color-border-light);
  padding: 1px 8px;
  border-radius: 8px;
}

/* ---------- 空状态 ---------- */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--color-text-muted);
}
.empty-state__icon { font-size: 4rem; margin-bottom: 16px; }
.empty-state h3 { font-size: 1.25rem; color: var(--color-text-secondary); margin-bottom: 8px; }

/* ---------- 文章详情 ---------- */
.detail-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.detail-toolbar__right { display: flex; gap: 8px; }

.article-detail {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.article-detail__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.article-detail__meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border-light);
}
.article-detail__content {
  line-height: 1.8;
}

/* ---------- Markdown 渲染内容 ---------- */
.markdown-body {
  color: var(--color-text);
  line-height: 1.8;
  word-wrap: break-word;
}
.markdown-body h1 { font-size: 1.75rem; font-weight: 700; margin: 24px 0 12px; border-bottom: 2px solid var(--color-border-light); padding-bottom: 8px; }
.markdown-body h2 { font-size: 1.5rem; font-weight: 600; margin: 22px 0 10px; }
.markdown-body h3 { font-size: 1.25rem; font-weight: 600; margin: 20px 0 8px; }
.markdown-body h4 { font-size: 1.1rem; font-weight: 600; margin: 16px 0 8px; }
.markdown-body p { margin: 10px 0; }
.markdown-body ul, .markdown-body ol { padding-left: 24px; margin: 8px 0; }
.markdown-body li { margin: 4px 0; }
.markdown-body ul { list-style: disc; }
.markdown-body ol { list-style: decimal; }
.markdown-body code {
  background: var(--color-border-light);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.875em;
  color: var(--color-danger);
}
.markdown-body pre {
  background: #1e293b;
  border-radius: var(--radius-md);
  padding: 16px 20px;
  overflow-x: auto;
  margin: 12px 0;
}
.markdown-body pre code {
  background: none;
  color: #e2e8f0;
  padding: 0;
  font-size: 0.8125rem;
  line-height: 1.7;
}
.markdown-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 8px 16px;
  margin: 12px 0;
  background: var(--color-primary-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-secondary);
}
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.875rem;
}
.markdown-body th {
  background: var(--color-border-light);
  font-weight: 600;
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
}
.markdown-body td {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
}
.markdown-body a { color: var(--color-primary); text-decoration: underline; }
.markdown-body a:hover { color: var(--color-primary-hover); }
.markdown-body hr { border: none; border-top: 1px solid var(--color-border); margin: 20px 0; }
.markdown-body img { border-radius: var(--radius-sm); margin: 8px 0; max-width: 100%; }

/* ---------- 编辑器 ---------- */
.editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: 8px;
}
.editor-toolbar__right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.editor-toolbar__mode {
  display: flex;
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 2px;
}
.editor-toolbar__mode .btn--tab { border-radius: 4px; }

.editor-body {
  display: flex;
  gap: 0;
  min-height: calc(100vh - 180px);
}
.editor-body--split .editor-pane--edit,
.editor-body--split .editor-pane--preview {
  flex: 1;
}
.editor-body--split .editor-pane--preview {
  display: block;
  border-left: 1px solid var(--color-border);
}

.editor-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.editor-pane--preview {
  display: none;
  overflow-y: auto;
}
.editor-body--preview .editor-pane--edit { display: none; }
.editor-body--preview .editor-pane--preview { display: block; }

.editor__title {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  background: var(--color-surface);
}
.editor__title:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.editor__meta {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.editor__meta-item {
  flex: 1;
  min-width: 150px;
}
.editor__meta-item label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}
.editor__category-row {
  display: flex;
  gap: 6px;
  align-items: center;
}
.editor__category-row .select { flex: 1; }

.editor__content {
  flex: 1;
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  resize: none;
  min-height: 400px;
  background: var(--color-surface);
}
.editor__content:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.editor__preview {
  padding: 20px;
  min-height: 400px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

/* ---------- 模态弹窗 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}
.modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
}
.modal__content {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 440px;
  width: 90%;
  box-shadow: var(--shadow-xl);
}
.modal__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.modal__text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}
.modal__actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.modal__body {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 16px;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-sidebar);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  z-index: 300;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s ease;
}
.toast--success { background: var(--color-success); }
.toast--error { background: var(--color-danger); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ---------- 分类管理 ---------- */
.category-manage-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}
.category-manage-item:hover { background: var(--color-border-light); }
.category-manage-item__name { font-size: 0.875rem; }
.category-manage-item__count { font-size: 0.75rem; color: var(--color-text-muted); }
.category-manage-item__actions { display: flex; gap: 4px; }
.category-manage-item__actions button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.75rem;
  padding: 4px 8px;
  border-radius: 4px;
  color: var(--color-text-secondary);
}
.category-manage-item__actions button:hover { background: var(--color-border-light); }
.category-manage-item__actions button.btn--rename:hover { color: var(--color-primary); }
.category-manage-item__actions button.btn--del:hover { color: var(--color-danger); }

/* ---------- 搜索结果高亮 ---------- */
.search-highlight {
  background: var(--color-warning);
  padding: 0 2px;
  border-radius: 2px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .main {
    padding: 24px;
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .topbar { display: flex; }
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.active {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }
  .main {
    margin-left: 0;
    margin-top: var(--topbar-height);
    padding: 16px;
    max-width: 100%;
  }
  .article-card { padding: 16px; }
  .article-detail { padding: 20px; }
  .editor__meta { flex-direction: column; gap: 8px; }
  .editor-body--split {
    flex-direction: column;
  }
  .editor-body--split .editor-pane--preview {
    border-left: none;
    border-top: 1px solid var(--color-border);
  }
}

@media (max-width: 480px) {
  .list-header { flex-direction: column; align-items: flex-start; }
  .detail-toolbar { flex-wrap: wrap; gap: 8px; }
  .editor-toolbar { flex-direction: column; align-items: stretch; }
  .editor-toolbar__right { justify-content: space-between; }
}