/* ============================================================
   润致GEO 运营平台端 — 公共样式系统
   适用：PC Web 后台管理（1280px+）
   ============================================================ */

:root {
  /* 品牌色 */
  --color-primary: #1565C0;
  --color-primary-light: #1E88E5;
  --color-primary-dark: #0D47A1;
  --color-primary-bg: #E3F2FD;
  --color-accent: #FF6F00;
  --color-accent-light: #FF8F00;
  --color-accent-bg: #FFF3E0;

  /* 功能色 */
  --color-success: #2E7D32;
  --color-success-bg: #E8F5E9;
  --color-danger: #E53935;
  --color-danger-bg: #FFEBEE;
  --color-warning: #F57C00;
  --color-warning-bg: #FFF3E0;
  --color-info: #0288D1;
  --color-info-bg: #E1F5FE;

  /* 功能色 - 浅底深字（满足 WCAG AA 对比度） */
  --color-primary-text-on-bg: #0D47A1;
  --color-accent-text-on-bg: #E65100;
  --color-success-text-on-bg: #1B5E20;
  --color-danger-text-on-bg: #B71C1C;

  /* 标签扩展色 */
  --color-purple: #7B1FA2;
  --color-purple-bg: #F3E5F5;
  --color-gray-tag: #888;
  --color-gray-tag-bg: #F0F0F0;

  /* Alert 文字色 */
  --color-info-text: #01579B;
  --color-warning-text: #E65100;
  --color-success-text: #1B5E20;
  --color-danger-text: #B71C1C;

  /* 中性色 */
  --bg-page: #F5F6FA;
  --bg-card: #FFFFFF;
  --bg-input: #FAFBFC;
  --border-color: #E0E4EA;
  --border-light: #EEF0F4;
  --text-primary: #1F1F1F;
  --text-secondary: #777777;
  --text-placeholder: #999999;
  --text-muted: #B0B0B0;

  /* 侧边栏 */
  --sidebar-bg: #1A2332;
  --sidebar-hover: #232D3E;
  --sidebar-active: #1E3A5F;
  --sidebar-text: #A0AEC0;
  --sidebar-text-active: #FFFFFF;

  /* 尺寸 */
  --sidebar-width: 230px;
  --header-height: 52px;
  --radius-sm: 4px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-pill: 20px;
  --content-max-width: 1400px;
  --content-max-width-wide: 1600px;

  /* 阴影 */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-xl: 0 8px 40px rgba(0,0,0,0.16);

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Consolas", monospace;

  /* 排版层级 */
  --fs-display: 28px;
  --fs-title: 20px;
  --fs-subtitle: 16px;
  --fs-body: 14px;
  --fs-caption: 12px;
  --fs-small: 11px;

  /* 字重 */
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;

  /* 动效时长 */
  --transition-fast: 0.15s;
  --transition-normal: 0.25s;
  --transition-slow: 0.35s;

  /* 图标尺寸 */
  --icon-sm: 14px;
  --icon-md: 16px;
  --icon-lg: 20px;
  --icon-xl: 24px;

  /* 表格 */
  --bg-table-header: #FAFBFC;
  --bg-table-hover: #F5F7FA;
  --table-cell-padding-y: 12px;
  --table-cell-padding-x: 12px;

  /* 其它组件背景 */
  --bg-progress: #E8ECF1;
  --bg-step-num: #E0E0E0;
  --bg-toggle-off: #CCC;
  --bg-modal: #FFFFFF;
  --bg-card-footer: #FAFBFC;
  --color-breadcrumb-sep: #CCC;
}

/* ==================== 全局重置 ==================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: var(--font-family);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: var(--color-primary); }
a:hover { color: var(--color-primary-light); }

ul, ol { list-style: none; }

img { max-width: 100%; vertical-align: middle; }

input, button, select, textarea {
  font-family: var(--font-family);
  font-size: inherit;
  outline: none;
}

/* 键盘焦点可见（WCAG 2.4.7） */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none; /* 输入框使用边框变色方式，避免双重视觉 */
}

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 16px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  user-select: none;
  line-height: 1;
}
.btn:hover { opacity: 0.88; }
.btn:active { transform: scale(0.97); }
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--bg-card);
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-light); }

.btn-success {
  background: var(--color-success);
  color: var(--bg-card);
  border-color: var(--color-success);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--bg-card);
  border-color: var(--color-danger);
}

.btn-warning {
  background: var(--color-warning);
  color: var(--bg-card);
  border-color: var(--color-warning);
}

.btn-outline {
  background: var(--bg-card);
  color: var(--text-secondary);
  border-color: var(--border-color);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline-danger {
  background: var(--bg-card);
  color: var(--color-danger);
  border-color: var(--color-danger);
}
.btn-outline-danger:hover {
  background: var(--color-danger-bg);
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--color-primary-bg); }

.btn-plain {
  background: var(--bg-card);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-plain:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary-light);
  border-color: var(--color-primary-light);
}

.btn-sm {
  height: 28px;
  padding: 0 10px;
  font-size: 12px;
}
.btn-lg {
  height: 40px;
  padding: 0 24px;
  font-size: 15px;
}

.btn .btn-icon { font-size: 15px; }
.btn-sm .btn-icon { font-size: 13px; }

/* ==================== 输入框 ==================== */
.form-group {
  margin-bottom: var(--spacing-lg);
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.form-label .required {
  color: var(--color-danger);
  margin-left: 2px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  height: 36px;
  padding: 0 10px;
  font-size: 13px;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color 0.15s;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(21,101,192,0.12);
}
.form-input::placeholder { color: var(--text-placeholder); }
.form-input.error { border-color: var(--color-danger); }
.form-textarea {
  height: auto;
  min-height: 80px;
  padding: 8px 10px;
  resize: vertical;
}
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
  cursor: pointer;
}
.form-hint {
  font-size: 12px;
  color: var(--text-placeholder);
  margin-top: 4px;
}
.form-inline {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ==================== 表格 ==================== */
.table-wrap {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
  gap: var(--spacing-md);
  flex-wrap: wrap;
}
.table-toolbar-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}
.table-toolbar-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}
.table-search {
  width: 240px;
  height: 32px;
  padding: 0 10px 0 32px;
  font-size: 13px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-input) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cpath d='M21 21l-4.35-4.35'%3E%3C/path%3E%3C/svg%3E") 10px center no-repeat;
}
.table-search:focus { border-color: var(--color-primary); }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table th {
  background: var(--bg-table-header);
  padding: var(--table-cell-padding-y) var(--table-cell-padding-x);
  text-align: left;
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  font-size: var(--fs-caption);
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}
table td {
  padding: var(--table-cell-padding-y) var(--table-cell-padding-x);
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
}
table tbody tr:hover { background: var(--bg-table-hover); }
table tbody tr:last-child td { border-bottom: none; }
table .text-right { text-align: right; }
table .text-center { text-align: center; }
table .col-narrow { width: 1%; white-space: nowrap; }
table .text-mono { font-family: var(--font-mono); font-size: 12px; }

/* 表格分页 */
.table-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-light);
  font-size: 13px;
  color: var(--text-secondary);
}
.pagination-info { }
.pagination-btns {
  display: flex;
  align-items: center;
  gap: 4px;
}
.pagination-btns .btn-page {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.pagination-btns .btn-page:hover { border-color: var(--color-primary); color: var(--color-primary); }
.pagination-btns .btn-page.active {
  background: var(--color-primary);
  color: var(--bg-card);
  border-color: var(--color-primary);
}
.pagination-btns .btn-page:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ==================== 标签/徽章 ==================== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.tag-blue { background: var(--color-primary-bg); color: var(--color-primary-text-on-bg); }
.tag-orange { background: var(--color-accent-bg); color: var(--color-accent-text-on-bg); }
.tag-green { background: var(--color-success-bg); color: var(--color-success-text-on-bg); }
.tag-red { background: var(--color-danger-bg); color: var(--color-danger-text-on-bg); }
.tag-gray { background: var(--color-gray-tag-bg); color: var(--color-gray-tag); }
.tag-purple { background: var(--color-purple-bg); color: var(--color-purple); }

/* ==================== 状态圆点 ==================== */
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 5px;
}
.status-dot.green { background: var(--color-success); }
.status-dot.orange { background: var(--color-warning); }
.status-dot.red { background: var(--color-danger); }
.status-dot.gray { background: var(--text-muted); }
.status-dot.blue { background: var(--color-primary); }

/* ==================== 卡片 ==================== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-light);
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}
.card-body { padding: var(--spacing-lg); }
.card-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-light);
  background: var(--bg-card-footer);
}

/* ==================== 统计卡片 ==================== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}
.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-secondary);
}
.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
}
.stat-card .stat-value.accent { color: var(--color-accent); }
.stat-card .stat-sub {
  font-size: 12px;
  color: var(--text-placeholder);
}
.stat-card .stat-sub .up { color: var(--color-success); }
.stat-card .stat-sub .down { color: var(--color-danger); }

/* ==================== 弹窗/模态框 ==================== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.modal-overlay.show { display: flex; opacity: 1; }

.modal {
  background: var(--bg-modal);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 640px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95) translateY(-10px);
  transition: transform var(--transition-normal) cubic-bezier(0.4, 0, 0.2, 1);
}
.modal-overlay.show .modal {
  transform: scale(1) translateY(0);
}
.modal.modal-sm { max-width: 420px; }
.modal.modal-lg { max-width: 860px; }
.modal.modal-xl { max-width: 1020px; }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
}
.modal-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}
.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  font-size: 20px;
  color: var(--text-placeholder);
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.modal-close:hover { background: var(--color-gray-tag-bg); color: var(--text-primary); }

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-top: 1px solid var(--border-light);
  flex-shrink: 0;
}

/* ==================== 页面标题区 ==================== */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
}
.page-header-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}
.page-header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

/* ==================== 面包屑 ==================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-placeholder);
  margin-bottom: var(--spacing-lg);
}
.breadcrumb a { color: var(--text-placeholder); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--color-breadcrumb-sep); }
.breadcrumb .current { color: var(--text-primary); font-weight: 500; }

/* ==================== 空状态 ==================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-placeholder);
}
.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state .empty-text { font-size: 14px; }

/* ==================== 提示信息 ==================== */
.alert {
  padding: 10px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}
.alert-info { background: var(--color-info-bg); color: var(--color-info-text); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }
.alert-success { background: var(--color-success-bg); color: var(--color-success-text); }
.alert-danger { background: var(--color-danger-bg); color: var(--color-danger-text); }

/* ==================== 标签页 ==================== */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border-light);
  margin-bottom: var(--spacing-lg);
}
.tab-item {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.15s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font-family);
}
.tab-item:hover { color: var(--color-primary); }
.tab-item.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==================== 两列表单布局（用于详情页） ==================== */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}
.detail-grid .detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.detail-item .detail-label {
  font-size: 12px;
  color: var(--text-placeholder);
  font-weight: 500;
}
.detail-item .detail-value {
  font-size: 14px;
  color: var(--text-primary);
  word-break: break-all;
}
.detail-grid.full { grid-template-columns: 1fr; }

/* ==================== 操作日志 ==================== */
.log-list { }
.log-item {
  display: flex;
  gap: var(--spacing-md);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 13px;
}
.log-item:last-child { border-bottom: none; }
.log-time { color: var(--text-placeholder); white-space: nowrap; min-width: 140px; }
.log-action { color: var(--text-primary); flex: 1; }
.log-operator { color: var(--text-secondary); }

/* ==================== 复选框/单选框 ==================== */
.checkbox-group, .radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}
.checkbox-item, .radio-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  cursor: pointer;
}

/* ==================== 开关 ==================== */
.toggle-switch {
  position: relative;
  width: 40px;
  height: 22px;
  cursor: pointer;
}
.toggle-switch input { display: none; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-toggle-off);
  border-radius: 11px;
  transition: 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 18px; height: 18px;
  background: var(--bg-card);
  border-radius: 50%;
  transition: 0.2s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--color-primary); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ==================== 步骤条 ==================== */
.steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: var(--spacing-xl);
}
.step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  font-size: 13px;
  color: var(--text-placeholder);
}
.step-item .step-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--bg-step-num);
  color: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}
.step-item.active { color: var(--color-primary); }
.step-item.active .step-num { background: var(--color-primary); }
.step-item.done { color: var(--color-success); }
.step-item.done .step-num { background: var(--color-success); }
.step-line {
  flex: 1;
  height: 1px;
  background: var(--border-color);
  min-width: 20px;
  margin: 0 4px;
}

/* ==================== 富文本占位 ==================== */
.rich-editor-placeholder {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  min-height: 200px;
  background: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-placeholder);
  font-size: 14px;
}

/* ==================== 上传区域 ==================== */
.upload-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
  color: var(--text-placeholder);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}
.upload-zone:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-bg);
}
.upload-zone .upload-icon { font-size: 36px; margin-bottom: 8px; }

/* ==================== 进度条 ==================== */
.progress-bar {
  height: 8px;
  background: var(--bg-progress);
  border-radius: 4px;
  overflow: hidden;
}
.progress-bar .progress-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s;
}
.progress-fill.blue { background: var(--color-primary); }
.progress-fill.green { background: var(--color-success); }
.progress-fill.orange { background: var(--color-accent); }

/* ==================== 页面内容包裹器 ==================== */
.page-wrap {
  max-width: var(--content-max-width);
  margin: 0 auto;
}
.page-wrap.wide {
  max-width: var(--content-max-width-wide);
}

/* ==================== Toast 全局通知 ==================== */
.toast {
  position: fixed;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 24px;
  border-radius: var(--radius-lg);
  font-size: var(--fs-body);
  font-family: var(--font-family);
  z-index: 10000;
  pointer-events: none;
  box-shadow: var(--shadow-lg);
  animation: toastIn var(--transition-normal) ease;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}
.toast.toast-hide {
  opacity: 0;
  transform: translateX(-50%) translateY(-10px);
}
.toast-success { background: var(--color-success); color: #fff; }
.toast-error { background: var(--color-danger); color: #fff; }
.toast-warning { background: var(--color-accent); color: #fff; }
.toast-info { background: var(--color-primary); color: #fff; }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-12px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ==================== Iconify 图标样式 ==================== */
iconify-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  vertical-align: middle;
}
.menu-icon iconify-icon,
.stat-icon iconify-icon,
.qe-icon iconify-icon {
  display: flex;
}

/* ==================== 侧栏过渡（用于 index.html） ==================== */
.sidebar-transition {
  transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== Loading / Skeleton 骨架屏 ==================== */
@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.skeleton {
  background: var(--border-light);
  border-radius: var(--radius-md);
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}
.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
}
.skeleton-text.short { width: 60%; }
.skeleton-text.medium { width: 80%; }
.skeleton-title {
  height: 18px;
  width: 40%;
  margin-bottom: 16px;
}
.skeleton-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
}
.skeleton-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}
.skeleton-table-row {
  display: flex; gap: var(--spacing-lg);
  padding: var(--table-cell-padding-y) var(--table-cell-padding-x);
  border-bottom: 1px solid var(--border-light);
}

/* 旋转加载指示器 */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.loading-spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border-light);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
.loading-spinner.lg {
  width: 36px; height: 36px;
  border-width: 3px;
}
.loading-overlay {
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 10;
}

/* ==================== 确认弹窗 ==================== */
.confirm-modal .modal { max-width: 420px; }
.confirm-modal .confirm-body {
  text-align: center;
  padding: var(--spacing-lg) 0;
  font-size: var(--fs-body);
  color: var(--text-secondary);
  line-height: 1.7;
}
.confirm-modal .confirm-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
  display: block;
}
.confirm-modal .confirm-icon.warn { color: var(--color-accent); }
.confirm-modal .confirm-icon.danger { color: var(--color-danger); }