/* ==========================================================================
   IoT-Hub Design System — 简洁蓝白 ERP 风格
   主色：靛蓝 #2563eb
   说明：所有组件类均以 ds- 为前缀，避免与既有样式冲突。
   视觉密度参考 Element Plus：控件高 32px，表格行高约 40px，字号 13-14px。
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌（CSS 变量）
   -------------------------------------------------------------------------- */
:root {
  /* 主色 */
  --ds-primary: #2563eb;
  --ds-primary-hover: #1d4ed8;
  --ds-primary-active: #1e40af;
  --ds-primary-light: #eff6ff;
  --ds-primary-lighter: #dbeafe;
  --ds-primary-border: #bfdbfe;

  /* 语义色 */
  --ds-success: #059669;
  --ds-success-light: #ecfdf5;
  --ds-success-border: #a7f3d0;
  --ds-warning: #d97706;
  --ds-warning-light: #fffbeb;
  --ds-warning-border: #fde68a;
  --ds-danger: #dc2626;
  --ds-danger-light: #fef2f2;
  --ds-danger-border: #fecaca;
  --ds-info: #64748b;
  --ds-info-light: #f1f5f9;
  --ds-info-border: #cbd5e1;

  /* 中性灰阶（8 级，#f8fafc → #0f172a） */
  --ds-gray-50: #f8fafc;
  --ds-gray-100: #f1f5f9;
  --ds-gray-200: #e2e8f0;
  --ds-gray-300: #cbd5e1;
  --ds-gray-400: #94a3b8;
  --ds-gray-500: #64748b;
  --ds-gray-600: #475569;
  --ds-gray-900: #0f172a;

  /* 文本 / 边框 / 背景 */
  --ds-text-primary: #0f172a;
  --ds-text-regular: #334155;
  --ds-text-secondary: #64748b;
  --ds-text-placeholder: #94a3b8;
  --ds-border: #e2e8f0;
  --ds-border-dark: #cbd5e1;
  --ds-bg-page: #f8fafc;
  --ds-bg-card: #ffffff;

  /* 间距刻度（4 的倍数） */
  --ds-space-1: 4px;
  --ds-space-2: 8px;
  --ds-space-3: 12px;
  --ds-space-4: 16px;
  --ds-space-5: 20px;
  --ds-space-6: 24px;
  --ds-space-8: 32px;
  --ds-space-10: 40px;

  /* 圆角 */
  --ds-radius-sm: 4px;
  --ds-radius-base: 6px;
  --ds-radius-md: 8px;
  --ds-radius-lg: 12px;
  --ds-radius-full: 999px;

  /* 三级阴影（柔和、低饱和） */
  --ds-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --ds-shadow-md: 0 2px 8px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --ds-shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.10), 0 2px 6px rgba(15, 23, 42, 0.05);

  /* 字体栈（系统字体，中文优先） */
  --ds-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Roboto, Arial, sans-serif;
  --ds-font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* 字号 */
  --ds-font-xs: 12px;
  --ds-font-sm: 13px;
  --ds-font-base: 14px;
  --ds-font-lg: 16px;
  --ds-font-xl: 18px;

  /* 控件高度 */
  --ds-control-h-sm: 28px;
  --ds-control-h: 32px;
  --ds-control-h-lg: 40px;

  /* 过渡时长 */
  --ds-transition-fast: 0.15s ease;
  --ds-transition: 0.2s ease;
  --ds-transition-slow: 0.3s ease;

  /* 布局尺寸 */
  --ds-sidebar-width: 240px;
  --ds-sidebar-width-collapsed: 64px;
  --ds-topbar-height: 56px;
}

/* --------------------------------------------------------------------------
   2. 按钮
   -------------------------------------------------------------------------- */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: var(--ds-control-h);
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: var(--ds-radius-base);
  font-size: var(--ds-font-sm);
  font-weight: 500;
  font-family: var(--ds-font-family);
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  background: transparent;
  color: var(--ds-text-regular);
  transition: background-color var(--ds-transition-fast),
    border-color var(--ds-transition-fast),
    color var(--ds-transition-fast),
    box-shadow var(--ds-transition-fast);
}

.ds-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.ds-btn:disabled,
.ds-btn.disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.ds-btn-primary {
  background: var(--ds-primary);
  border-color: var(--ds-primary);
  color: #fff;
}
.ds-btn-primary:hover:not(:disabled) {
  background: var(--ds-primary-hover);
  border-color: var(--ds-primary-hover);
}
.ds-btn-primary:active:not(:disabled) {
  background: var(--ds-primary-active);
  border-color: var(--ds-primary-active);
}

.ds-btn-secondary {
  background: #fff;
  border-color: var(--ds-border-dark);
  color: var(--ds-text-regular);
}
.ds-btn-secondary:hover:not(:disabled) {
  color: var(--ds-primary);
  border-color: var(--ds-primary-border);
  background: var(--ds-primary-light);
}

.ds-btn-danger {
  background: var(--ds-danger);
  border-color: var(--ds-danger);
  color: #fff;
}
.ds-btn-danger:hover:not(:disabled) {
  background: #b91c1c;
  border-color: #b91c1c;
}

.ds-btn-success {
  background: var(--ds-success);
  border-color: var(--ds-success);
  color: #fff;
}
.ds-btn-success:hover:not(:disabled) {
  background: #047857;
  border-color: #047857;
}

.ds-btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--ds-primary);
}
.ds-btn-ghost:hover:not(:disabled) {
  background: var(--ds-primary-light);
}

/* 尺寸 */
.ds-btn-sm {
  height: var(--ds-control-h-sm);
  padding: 0 10px;
  font-size: var(--ds-font-xs);
  border-radius: var(--ds-radius-sm);
  gap: 4px;
}

.ds-btn-lg {
  height: var(--ds-control-h-lg);
  padding: 0 20px;
  font-size: var(--ds-font-base);
  border-radius: var(--ds-radius-md);
}

.ds-btn-block {
  width: 100%;
}

/* 图标按钮（顶栏汉堡等） */
.ds-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--ds-radius-base);
  background: transparent;
  color: var(--ds-text-secondary);
  font-size: 15px;
  cursor: pointer;
  transition: background-color var(--ds-transition-fast), color var(--ds-transition-fast);
}
.ds-icon-btn:hover {
  background: var(--ds-gray-100);
  color: var(--ds-primary);
}

/* --------------------------------------------------------------------------
   3. 表单
   -------------------------------------------------------------------------- */
.ds-input,
.ds-select {
  width: 100%;
  height: var(--ds-control-h);
  padding: 0 10px;
  border: 1px solid var(--ds-border-dark);
  border-radius: var(--ds-radius-base);
  font-size: var(--ds-font-sm);
  font-family: var(--ds-font-family);
  color: var(--ds-text-primary);
  background: #fff;
  transition: border-color var(--ds-transition-fast), box-shadow var(--ds-transition-fast);
}

.ds-input::placeholder {
  color: var(--ds-text-placeholder);
}

.ds-input:focus,
.ds-select:focus {
  outline: none;
  border-color: var(--ds-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.ds-input:disabled,
.ds-select:disabled {
  background: var(--ds-gray-100);
  color: var(--ds-text-placeholder);
  cursor: not-allowed;
}

.ds-select {
  appearance: none;
  padding-right: 28px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
}

textarea.ds-input {
  height: auto;
  min-height: 72px;
  padding: 8px 10px;
  resize: vertical;
  line-height: 1.5;
}

/* label + 控件垂直排布 */
.ds-form-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: var(--ds-space-4);
}

.ds-form-item > label {
  font-size: var(--ds-font-sm);
  font-weight: 500;
  color: var(--ds-text-regular);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   4. 卡片
   -------------------------------------------------------------------------- */
.ds-card {
  background: var(--ds-bg-card);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-sm);
  transition: box-shadow var(--ds-transition), transform var(--ds-transition);
}

.ds-card:hover {
  box-shadow: var(--ds-shadow-md);
  transform: translateY(-1px);
}

/* 不需要 hover 浮起的卡片（如表格容器） */
.ds-card-static {
  background: var(--ds-bg-card);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-sm);
}

.ds-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px var(--ds-space-5);
  border-bottom: 1px solid var(--ds-border);
  font-size: var(--ds-font-base);
  font-weight: 600;
  color: var(--ds-text-primary);
}

.ds-card-body {
  padding: var(--ds-space-5);
}

/* --------------------------------------------------------------------------
   5. 数据表格（ERP 核心组件）
   -------------------------------------------------------------------------- */
.ds-table-wrap {
  background: var(--ds-bg-card);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-sm);
  overflow: auto;
}

.ds-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--ds-font-sm);
  color: var(--ds-text-regular);
}

.ds-table th,
.ds-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--ds-border);
  line-height: 1.45;
}

.ds-table th:first-child,
.ds-table td:first-child {
  padding-left: var(--ds-space-4);
}

.ds-table th:last-child,
.ds-table td:last-child {
  padding-right: var(--ds-space-4);
}

/* sticky 表头：相对最近的可滚动祖先（.ds-content 或 .ds-table-wrap）吸附 */
.ds-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--ds-gray-50);
  color: var(--ds-text-secondary);
  font-size: var(--ds-font-sm);
  font-weight: 600;
  white-space: nowrap;
  box-shadow: inset 0 -1px 0 var(--ds-border);
}

/* 斑马纹 + 行 hover */
.ds-table tbody tr:nth-child(even) {
  background: #fbfdff;
}

.ds-table tbody tr {
  transition: background-color var(--ds-transition-fast);
}

.ds-table tbody tr:hover {
  background: var(--ds-primary-light);
}

.ds-table tbody tr:last-child td {
  border-bottom: none;
}

/* 表格内的加载 / 空 / 错误单元格 */
.ds-table td.loading-cell,
.ds-table td.empty-cell,
.ds-table td.error-cell {
  text-align: center;
  color: var(--ds-text-placeholder);
  padding: 48px 16px;
  font-size: var(--ds-font-sm);
}

.ds-table td.error-cell {
  color: var(--ds-danger);
}

/* --------------------------------------------------------------------------
   6. 徽章
   -------------------------------------------------------------------------- */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  height: 22px;
  padding: 0 8px;
  border-radius: var(--ds-radius-sm);
  font-size: var(--ds-font-xs);
  font-weight: 500;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
}

.ds-badge-success {
  background: var(--ds-success-light);
  color: var(--ds-success);
  border-color: var(--ds-success-border);
}

.ds-badge-warning {
  background: var(--ds-warning-light);
  color: var(--ds-warning);
  border-color: var(--ds-warning-border);
}

.ds-badge-danger {
  background: var(--ds-danger-light);
  color: var(--ds-danger);
  border-color: var(--ds-danger-border);
}

.ds-badge-info {
  background: var(--ds-info-light);
  color: var(--ds-info);
  border-color: var(--ds-info-border);
}

.ds-badge-primary {
  background: var(--ds-primary-light);
  color: var(--ds-primary);
  border-color: var(--ds-primary-border);
}

.ds-badge-neutral {
  background: var(--ds-gray-100);
  color: var(--ds-gray-500);
  border-color: var(--ds-gray-200);
}

/* --------------------------------------------------------------------------
   7. 弹窗
   -------------------------------------------------------------------------- */
.ds-modal-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.ds-modal-mask.show {
  display: flex;
}

.ds-modal {
  background: #fff;
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: dsModalIn 0.2s ease;
}

.ds-modal--sm {
  max-width: 400px;
}

.ds-modal--lg {
  max-width: 720px;
}

@keyframes dsModalIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.ds-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--ds-border);
  flex-shrink: 0;
}

.ds-modal-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ds-text-primary);
  margin: 0;
}

.ds-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: var(--ds-radius-base);
  background: transparent;
  color: var(--ds-text-placeholder);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: background-color var(--ds-transition-fast), color var(--ds-transition-fast);
}

.ds-modal-close:hover {
  background: var(--ds-gray-100);
  color: var(--ds-text-primary);
}

.ds-modal-body {
  padding: 20px;
  overflow-y: auto;
}

.ds-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid var(--ds-border);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   8. Toast
   -------------------------------------------------------------------------- */
.ds-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3000;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--ds-radius-md);
  background: #fff;
  border: 1px solid var(--ds-border);
  box-shadow: var(--ds-shadow-lg);
  font-size: var(--ds-font-sm);
  color: var(--ds-text-regular);
  animation: dsToastIn 0.25s ease;
}

.ds-toast-success { border-color: var(--ds-success-border); color: var(--ds-success); }
.ds-toast-warning { border-color: var(--ds-warning-border); color: var(--ds-warning); }
.ds-toast-danger  { border-color: var(--ds-danger-border);  color: var(--ds-danger); }
.ds-toast-info    { border-color: var(--ds-info-border);    color: var(--ds-info); }

@keyframes dsToastIn {
  from { opacity: 0; transform: translate(-50%, -8px); }
  to   { opacity: 1; transform: translate(-50%, 0); }
}

/* --------------------------------------------------------------------------
   9. 空状态
   -------------------------------------------------------------------------- */
.ds-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 48px 16px;
  color: var(--ds-text-placeholder);
  font-size: var(--ds-font-sm);
  text-align: center;
}

.ds-empty-icon {
  font-size: 32px;
  color: var(--ds-gray-300);
}

/* --------------------------------------------------------------------------
   10. 加载：旋转指示 + 骨架屏
   -------------------------------------------------------------------------- */
.ds-spin {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--ds-primary-lighter);
  border-top-color: var(--ds-primary);
  border-radius: 50%;
  animation: dsSpin 0.7s linear infinite;
  flex-shrink: 0;
}

.ds-spin-sm { width: 12px; height: 12px; border-width: 2px; }
.ds-spin-lg { width: 28px; height: 28px; border-width: 3px; }

/* 白色变体（用于主色按钮内） */
.ds-spin-light {
  border-color: rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
}

@keyframes dsSpin {
  to { transform: rotate(360deg); }
}

.ds-skeleton {
  border-radius: var(--ds-radius-sm);
  background: linear-gradient(90deg, var(--ds-gray-100) 25%, var(--ds-gray-200) 37%, var(--ds-gray-100) 63%);
  background-size: 400% 100%;
  animation: dsSkeleton 1.4s ease infinite;
}

@keyframes dsSkeleton {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

.ds-skeleton-row {
  height: 40px;
  margin: 8px 16px;
}

/* --------------------------------------------------------------------------
   11. 分页
   -------------------------------------------------------------------------- */
.ds-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: var(--ds-space-4);
  flex-wrap: wrap;
}

.ds-page-info {
  font-size: var(--ds-font-sm);
  color: var(--ds-text-secondary);
  padding: 0 4px;
}

/* --------------------------------------------------------------------------
   12. 工具栏（筛选 / 搜索行）
   -------------------------------------------------------------------------- */
.ds-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ds-space-3);
  background: var(--ds-bg-card);
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-lg);
  box-shadow: var(--ds-shadow-sm);
  padding: 12px 16px;
  margin-bottom: var(--ds-space-4);
}

.ds-toolbar .ds-form-item {
  margin-bottom: 0;
  min-width: 140px;
}

.ds-toolbar .ds-input,
.ds-toolbar .ds-select {
  width: auto;
  min-width: 160px;
}

.ds-toolbar-end {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   13. ERP 布局骨架
   -------------------------------------------------------------------------- */
.ds-layout {
  display: flex;
  min-height: 100vh;
  background: var(--ds-bg-page);
}

/* 左侧导航 */
.ds-sidebar {
  width: var(--ds-sidebar-width);
  background: #fff;
  border-right: 1px solid var(--ds-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  transition: width var(--ds-transition), transform var(--ds-transition);
  z-index: 110;
}

.ds-sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  height: var(--ds-topbar-height);
  padding: 0 16px;
  border-bottom: 1px solid var(--ds-border);
  flex-shrink: 0;
  overflow: hidden;
  white-space: nowrap;
}

.ds-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--ds-radius-md);
  background: var(--ds-primary);
  color: #fff;
  font-size: 15px;
  flex-shrink: 0;
}

.ds-logo-text {
  font-size: 15px;
  font-weight: 700;
  color: var(--ds-text-primary);
  letter-spacing: 0.2px;
}

.ds-menu {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px;
}

.ds-menu-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  padding: 0 12px;
  margin-bottom: 2px;
  border-radius: var(--ds-radius-md);
  color: var(--ds-text-regular);
  font-size: var(--ds-font-base);
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  transition: background-color var(--ds-transition-fast), color var(--ds-transition-fast);
}

.ds-menu-item > i {
  width: 18px;
  text-align: center;
  font-size: 14px;
  color: var(--ds-text-placeholder);
  flex-shrink: 0;
  transition: color var(--ds-transition-fast);
}

.ds-menu-item:hover {
  background: var(--ds-gray-100);
  color: var(--ds-text-primary);
}

/* 激活态：浅色底 + 左侧色条 */
.ds-menu-item.active {
  background: var(--ds-primary-light);
  color: var(--ds-primary);
  font-weight: 600;
}

.ds-menu-item.active > i {
  color: var(--ds-primary);
}

.ds-menu-item.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  bottom: 9px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--ds-primary);
}

/* 侧栏收拢态（桌面端，由 .ds-layout.sidebar-collapsed 触发） */
.ds-layout.sidebar-collapsed .ds-sidebar {
  width: var(--ds-sidebar-width-collapsed);
}

.ds-layout.sidebar-collapsed .ds-logo-text,
.ds-layout.sidebar-collapsed .ds-menu-item span {
  display: none;
}

.ds-layout.sidebar-collapsed .ds-sidebar-logo {
  justify-content: center;
  padding: 0;
}

.ds-layout.sidebar-collapsed .ds-menu-item {
  justify-content: center;
  padding: 0;
}

/* 移动端侧栏遮罩 */
.ds-sidebar-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 105;
}

.ds-sidebar-mask.show {
  display: block;
}

/* 主区域 */
.ds-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
}

/* 顶栏 */
.ds-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--ds-topbar-height);
  padding: 0 24px;
  background: #fff;
  border-bottom: 1px solid var(--ds-border);
  flex-shrink: 0;
}

.ds-topbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ds-text-primary);
  margin: 0;
}

/* 面包屑 */
.ds-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--ds-font-sm);
  color: var(--ds-text-secondary);
  min-width: 0;
}

.ds-breadcrumb > i {
  font-size: 10px;
  color: var(--ds-gray-300);
}

.ds-breadcrumb-current {
  color: var(--ds-text-primary);
  font-weight: 500;
}

.ds-topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.ds-user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--ds-font-sm);
  color: var(--ds-text-regular);
}

.ds-user-chip > i {
  font-size: 20px;
  color: var(--ds-gray-400);
}

/* 内容区 */
.ds-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  background: var(--ds-bg-page);
}

/* 页面标题行 */
.ds-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: var(--ds-space-4);
  flex-wrap: wrap;
}

.ds-page-title {
  font-size: var(--ds-font-lg);
  font-weight: 600;
  color: var(--ds-text-primary);
  margin: 0;
}

/* --------------------------------------------------------------------------
   14. 统计卡片
   -------------------------------------------------------------------------- */
.ds-stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: var(--ds-space-6);
}

.ds-stat {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
}

.ds-stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  font-size: 18px;
  flex-shrink: 0;
}

.ds-stat-icon-primary { background: var(--ds-primary-light); color: var(--ds-primary); }
.ds-stat-icon-success { background: var(--ds-success-light); color: var(--ds-success); }
.ds-stat-icon-warning { background: var(--ds-warning-light); color: var(--ds-warning); }
.ds-stat-icon-danger  { background: var(--ds-danger-light);  color: var(--ds-danger); }
.ds-stat-icon-info    { background: var(--ds-info-light);    color: var(--ds-info); }

.ds-stat-value {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ds-text-primary);
}

.ds-stat-label {
  font-size: var(--ds-font-sm);
  color: var(--ds-text-secondary);
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   15. 工具类
   -------------------------------------------------------------------------- */
.ds-flex { display: flex; }
.ds-inline-flex { display: inline-flex; }
.ds-flex-column { display: flex; flex-direction: column; }
.ds-items-center { align-items: center; }
.ds-justify-between { justify-content: space-between; }
.ds-justify-end { justify-content: flex-end; }
.ds-flex-wrap { flex-wrap: wrap; }
.ds-flex-1 { flex: 1; min-width: 0; }

.ds-gap-1 { gap: var(--ds-space-1); }
.ds-gap-2 { gap: var(--ds-space-2); }
.ds-gap-3 { gap: var(--ds-space-3); }
.ds-gap-4 { gap: var(--ds-space-4); }

.ds-mt-2 { margin-top: var(--ds-space-2); }
.ds-mt-4 { margin-top: var(--ds-space-4); }
.ds-mb-2 { margin-bottom: var(--ds-space-2); }
.ds-mb-4 { margin-bottom: var(--ds-space-4); }
.ds-mb-6 { margin-bottom: var(--ds-space-6); }

.ds-text-primary { color: var(--ds-text-primary); }
.ds-text-regular { color: var(--ds-text-regular); }
.ds-text-secondary { color: var(--ds-text-secondary); }
.ds-text-success { color: var(--ds-success); }
.ds-text-warning { color: var(--ds-warning); }
.ds-text-danger { color: var(--ds-danger); }
.ds-text-brand { color: var(--ds-primary); }

.ds-text-xs { font-size: var(--ds-font-xs); }
.ds-text-sm { font-size: var(--ds-font-sm); }
.ds-text-base { font-size: var(--ds-font-base); }
.ds-text-lg { font-size: var(--ds-font-lg); }

.ds-font-mono { font-family: var(--ds-font-mono); }
.ds-hidden { display: none !important; }