/* =====================================================
   智仓云 WMS — 全局样式
   Design Tokens + 组件体系
   ===================================================== */

/* ── 设计令牌 ── */
:root {
  /* 品牌色 / 语义色（仓储行业：高可读蓝绿 + 橙红告警） */
  --color-primary: #1d6fce;
  --color-primary-hover: #155db3;
  --color-primary-light: #e8f1fb;
  --color-success: #16a34a;
  --color-success-bg: #f0fdf4;
  --color-warning: #d97706;
  --color-warning-bg: #fffbeb;
  --color-danger: #dc2626;
  --color-danger-bg: #fef2f2;
  --color-info: #0891b2;
  --color-info-bg: #f0f9ff;
  --color-muted-fg: #6b7280;
  --color-muted-bg: #f3f4f6;

  /* 背景 / 表面 */
  --color-bg: #f0f4f8;
  --color-surface: #ffffff;
  --color-surface-soft: #f8fafc;
  --color-sidebar-bg: #0f2342;
  --color-sidebar-text: #c9d8f0;
  --color-sidebar-hover: rgba(255,255,255,0.08);
  --color-sidebar-active: rgba(29,111,206,0.85);

  /* 文字 */
  --color-text: #111827;
  --color-text-soft: #374151;
  --color-muted: #6b7280;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-md: 15px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;
  --line-height: 1.5;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-page: 28px;
  --space-card: 20px;

  /* 圆角 */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-card: 0 1px 3px rgba(15,23,42,0.07), 0 4px 16px rgba(15,23,42,0.05);
  --shadow-modal: 0 24px 64px rgba(15,23,42,0.22);
  --shadow-dropdown: 0 4px 20px rgba(15,23,42,0.12);
  --shadow-sidebar: 2px 0 12px rgba(0,0,0,0.18);

  /* z-index */
  --z-sidebar: 20;
  --z-drawer: 40;
  --z-modal: 50;
  --z-toast: 60;

  /* 动画 */
  --duration-fast: 120ms;
  --duration-normal: 180ms;
  --duration-slow: 260ms;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);

  /* focus */
  --focus-ring: 0 0 0 3px rgba(29,111,206,0.22);

  /* 布局 */
  --sidebar-width: 240px;
  --topbar-height: 58px;
}

/* ── 基础重置 ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-hover); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }

/* ── 布局骨架 ── */
.app {
  display: flex;
  min-height: 100vh;
}

/* ── 侧边栏 ── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-sidebar-bg);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: var(--z-sidebar);
  box-shadow: var(--shadow-sidebar);
  overflow-y: auto;
  overflow-x: hidden;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  color: #fff;
  font-size: var(--font-size-md);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, #2a8fe8, #1d6fce);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 800; color: #fff;
  flex-shrink: 0;
}
.brand-sub {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.45);
  font-weight: 400;
  display: block;
  margin-top: 1px;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-4) 0 var(--space-6);
  display: flex;
  flex-direction: column;
}
.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  padding: var(--space-4) var(--space-5) var(--space-2);
}
.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 9px var(--space-5);
  color: var(--color-sidebar-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: 0;
  transition: background var(--duration-fast) var(--ease), color var(--duration-fast);
  position: relative;
}
.nav-link:hover {
  background: var(--color-sidebar-hover);
  color: #fff;
}
.nav-link.active {
  background: var(--color-sidebar-active);
  color: #fff;
}
.nav-link.active::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: #60a5fa;
  border-radius: 0 2px 2px 0;
}
.nav-icon {
  width: 18px; height: 18px;
  flex-shrink: 0;
  opacity: 0.75;
}
.nav-link.active .nav-icon,
.nav-link:hover .nav-icon { opacity: 1; }

/* ── 主区域 ── */
.main {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ── 顶部栏 ── */
.topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-page);
  gap: var(--space-4);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-title { flex: 1; }
.topbar-title h1 {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-text);
}
.topbar-title p {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-top: 1px;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-soft);
}
.menu-toggle:hover { background: var(--color-bg); }

.user-avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, #2a8fe8, #1d6fce);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.topbar-bell {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-muted);
  background: none;
  border: none;
  position: relative;
  transition: background var(--duration-fast);
}
.topbar-bell:hover { background: var(--color-bg); color: var(--color-text); }
.bell-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 7px; height: 7px;
  background: var(--color-danger);
  border-radius: 50%;
  border: 2px solid var(--color-surface);
}

/* ── 内容区 ── */
.content {
  flex: 1;
  padding: var(--space-page);
}

/* ── 面包屑 ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-bottom: var(--space-5);
}
.breadcrumb a { color: var(--color-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb-sep { color: var(--color-border); }
.breadcrumb-current { color: var(--color-text-soft); font-weight: 500; }

/* ── Card ── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-card);
}
.card + .card { margin-top: var(--space-4); }
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}
.card-title {
  font-size: var(--font-size-md);
  font-weight: 600;
  color: var(--color-text);
}
.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-top: 2px;
}
.card-divider {
  border: none;
  border-top: 1px solid var(--color-border-light);
  margin: var(--space-5) 0;
}

/* ── KPI 指标卡 ── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.metric-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.metric-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.metric-card.primary::after { background: var(--color-primary); }
.metric-card.success::after { background: var(--color-success); }
.metric-card.warning::after { background: var(--color-warning); }
.metric-card.danger::after { background: var(--color-danger); }
.metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  font-weight: 500;
  margin-bottom: var(--space-2);
}
.metric-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}
.metric-unit {
  font-size: var(--font-size-base);
  font-weight: 400;
  color: var(--color-muted);
  margin-left: 2px;
}
.metric-trend {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  margin-top: var(--space-2);
  display: flex;
  align-items: center;
  gap: 3px;
}
.metric-trend.up { color: var(--color-success); }
.metric-trend.down { color: var(--color-danger); }
.metric-icon {
  position: absolute;
  top: var(--space-4); right: var(--space-5);
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  opacity: 0.15;
}
.metric-card.primary .metric-icon { background: var(--color-primary); }
.metric-card.success .metric-icon { background: var(--color-success); }
.metric-card.warning .metric-icon { background: var(--color-warning); }
.metric-card.danger .metric-icon { background: var(--color-danger); }

/* ── 工具栏 ── */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}
.toolbar-left { display: flex; gap: var(--space-3); flex: 1; flex-wrap: wrap; }
.toolbar-right { display: flex; gap: var(--space-3); flex-shrink: 0; }

/* ── 表格 ── */
.table-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.table-wrap table {
  width: 100%;
  border-collapse: collapse;
}
.table-wrap th {
  background: var(--color-surface-soft);
  border-bottom: 1px solid var(--color-border);
  padding: 10px var(--space-4);
  text-align: left;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-soft);
  white-space: nowrap;
}
.table-wrap td {
  padding: 12px var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  vertical-align: middle;
}
.table-wrap tr:last-child td { border-bottom: none; }
.table-wrap tbody tr:hover { background: #fafbfd; }
.table-wrap .table-ops {
  display: flex;
  gap: var(--space-3);
}
.table-wrap .table-ops a,
.table-wrap .table-ops button.link-btn {
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
}
.table-wrap .table-ops a:hover,
.table-wrap .table-ops button.link-btn:hover { color: var(--color-primary-hover); text-decoration: underline; }
.table-wrap .table-ops .danger-link { color: var(--color-danger); }
.table-wrap .table-ops .danger-link:hover { color: #b91c1c; }

/* 分页 */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border-light);
  background: var(--color-surface-soft);
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}
.pagination-btns {
  display: flex;
  gap: var(--space-2);
}
.page-btn {
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  cursor: pointer;
  color: var(--color-text-soft);
  transition: all var(--duration-fast);
}
.page-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.page-btn.active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* ── 表单 ── */
.form-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr 1fr;
}
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-grid.cols-1 { grid-template-columns: 1fr; }
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.form-field.span-2 { grid-column: span 2; }
.form-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-soft);
}
.form-label .required { color: var(--color-danger); margin-left: 2px; }
.input, .select, .textarea {
  padding: 8px var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  width: 100%;
}
.input:focus, .select:focus, .textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}
.input.error, .select.error { border-color: var(--color-danger); }
.input:disabled, .select:disabled, .textarea:disabled {
  background: var(--color-muted-bg);
  color: var(--color-muted);
  cursor: not-allowed;
}
.input[readonly] {
  background: var(--color-surface-soft);
  color: var(--color-text-soft);
}
.textarea { resize: vertical; min-height: 80px; }
.form-hint { font-size: var(--font-size-xs); color: var(--color-muted); }
.form-error { font-size: var(--font-size-xs); color: var(--color-danger); }

/* 表单底部操作区 */
.form-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-light);
  margin-top: var(--space-5);
}

/* ── 按钮 ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px var(--space-5);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  white-space: nowrap;
  font-family: inherit;
  line-height: 1.4;
}
.btn:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.btn svg { flex-shrink: 0; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-primary:disabled { background: #93bbea; border-color: #93bbea; cursor: not-allowed; }

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

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

.btn-danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn-danger:hover { background: #b91c1c; border-color: #b91c1c; }

.btn-success {
  background: var(--color-success);
  color: #fff;
  border-color: var(--color-success);
}
.btn-success:hover { background: #15803d; border-color: #15803d; }

.btn-warning {
  background: var(--color-warning);
  color: #fff;
  border-color: var(--color-warning);
}
.btn-warning:hover { background: #b45309; border-color: #b45309; }

.btn-sm {
  padding: 5px var(--space-3);
  font-size: var(--font-size-xs);
}
.btn-lg {
  padding: 11px var(--space-6);
  font-size: var(--font-size-md);
}
.btn.loading { opacity: 0.75; pointer-events: none; }

/* ── 状态标签 Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}
.badge-success { background: var(--color-success-bg); color: #15803d; }
.badge-success::before { background: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: #92400e; }
.badge-warning::before { background: var(--color-warning); }
.badge-danger { background: var(--color-danger-bg); color: #b91c1c; }
.badge-danger::before { background: var(--color-danger); }
.badge-info { background: var(--color-info-bg); color: #0e7490; }
.badge-info::before { background: var(--color-info); }
.badge-muted { background: var(--color-muted-bg); color: var(--color-muted); }
.badge-muted::before { background: var(--color-muted); }
.badge-primary { background: var(--color-primary-light); color: var(--color-primary); }
.badge-primary::before { background: var(--color-primary); }
/* 无圆点版 */
.badge-plain::before { display: none; }

/* ── 时间线 ── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.timeline-item {
  display: flex;
  gap: var(--space-4);
  position: relative;
}
.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 11px;
  top: 26px;
  bottom: -4px;
  width: 2px;
  background: var(--color-border);
}
.timeline-dot {
  width: 24px; height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px;
  font-weight: 700;
  margin-top: 2px;
  z-index: 1;
}
.timeline-dot.done { background: var(--color-success); color: #fff; }
.timeline-dot.active { background: var(--color-primary); color: #fff; }
.timeline-dot.pending { background: var(--color-muted-bg); color: var(--color-muted); border: 2px solid var(--color-border); }
.timeline-dot.error { background: var(--color-danger); color: #fff; }
.timeline-body { padding-bottom: var(--space-5); flex: 1; }
.timeline-title { font-size: var(--font-size-base); font-weight: 500; }
.timeline-meta { font-size: var(--font-size-xs); color: var(--color-muted); margin-top: 2px; }
.timeline-desc { font-size: var(--font-size-sm); color: var(--color-text-soft); margin-top: var(--space-2); }

/* ── 步骤条 ── */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: var(--space-6);
}
.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 14px;
  left: calc(50% + 14px);
  right: calc(-50% + 14px);
  height: 2px;
  background: var(--color-border);
}
.step:not(:last-child).done::after { background: var(--color-success); }
.step-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700;
  background: var(--color-muted-bg);
  color: var(--color-muted);
  border: 2px solid var(--color-border);
  transition: all var(--duration-normal);
  z-index: 1;
}
.step.done .step-num { background: var(--color-success); border-color: var(--color-success); color: #fff; }
.step.active .step-num { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }
.step-label { font-size: var(--font-size-xs); color: var(--color-muted); margin-top: var(--space-2); text-align: center; }
.step.done .step-label { color: var(--color-success); }
.step.active .step-label { color: var(--color-primary); font-weight: 600; }

/* ── 任务看板 ── */
.kanban {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  align-items: start;
}
.kanban-col {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.kanban-col-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.kanban-col-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-soft);
}
.kanban-count {
  background: var(--color-border);
  color: var(--color-muted);
  border-radius: var(--radius-full);
  padding: 1px 7px;
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.task-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  box-shadow: var(--shadow-card);
}
.task-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(29,111,206,0.12);
  transform: translateY(-1px);
}
.task-card-id { font-size: var(--font-size-xs); color: var(--color-muted); margin-bottom: var(--space-2); }
.task-card-title { font-size: var(--font-size-sm); font-weight: 600; margin-bottom: var(--space-3); }
.task-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}
.task-card-assignee {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.assignee-avatar {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.task-card-due.overdue { color: var(--color-danger); font-weight: 600; }

/* ── 库位标签 ── */
.location-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  font-family: 'Courier New', monospace;
}

/* 库存状态 */
.stock-status {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
}
.stock-bar {
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  width: 60px;
  overflow: hidden;
}
.stock-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--color-success);
}
.stock-fill.warning { background: var(--color-warning); }
.stock-fill.danger { background: var(--color-danger); }

/* 异常告警 */
.exception-alert {
  background: var(--color-danger-bg);
  border: 1px solid #fecaca;
  border-left: 4px solid var(--color-danger);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}
.exception-alert.warning {
  background: var(--color-warning-bg);
  border-color: #fde68a;
  border-left-color: var(--color-warning);
}
.exception-alert-content { flex: 1; }
.exception-alert-title { font-size: var(--font-size-sm); font-weight: 600; margin-bottom: 2px; }
.exception-alert-desc { font-size: var(--font-size-xs); color: var(--color-text-soft); }

/* ── 图表（CSS） ── */
.chart-card { overflow: hidden; }
.chart-bars {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  height: 120px;
  padding: 0 var(--space-2) var(--space-3);
}
.chart-bar-group {
  flex: 1;
  display: flex;
  gap: 3px;
  align-items: flex-end;
}
.chart-bar {
  flex: 1;
  border-radius: 3px 3px 0 0;
  min-height: 4px;
  transition: opacity var(--duration-fast);
}
.chart-bar:hover { opacity: 0.75; }
.chart-bar.in { background: var(--color-primary); }
.chart-bar.out { background: #60a5fa; }
.chart-labels {
  display: flex;
  gap: var(--space-2);
  padding: 0 var(--space-2);
}
.chart-label {
  flex: 1;
  text-align: center;
  font-size: 10px;
  color: var(--color-muted);
}
.chart-legend {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-3);
  flex-wrap: wrap;
}
.chart-legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}
.legend-dot {
  width: 10px; height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* ── 空状态 ── */
.empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-page) var(--space-4);
  text-align: center;
  gap: var(--space-3);
}
.empty-icon {
  width: 52px; height: 52px;
  color: var(--color-border);
}
.empty-title {
  font-size: var(--font-size-md);
  font-weight: 500;
  color: var(--color-text-soft);
}
.empty-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  max-width: 300px;
}

/* ── 骨架屏 ── */
.skeleton {
  background: linear-gradient(90deg, var(--color-border-light) 25%, var(--color-border) 50%, var(--color-border-light) 75%);
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Toast ── */
.toast-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.toast {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  box-shadow: var(--shadow-dropdown);
  font-size: var(--font-size-sm);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 260px;
  animation: toast-in var(--duration-normal) var(--ease);
}
@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}
.toast-success { border-left: 4px solid var(--color-success); }
.toast-error { border-left: 4px solid var(--color-danger); }
.toast-warning { border-left: 4px solid var(--color-warning); }
.toast-info { border-left: 4px solid var(--color-info); }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.5);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: fade-in var(--duration-fast);
}
@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  width: 100%;
  max-width: 480px;
  animation: modal-in var(--duration-normal) var(--ease);
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to { opacity: 1; transform: none; }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}
.modal-title { font-size: var(--font-size-md); font-weight: 600; }
.modal-close {
  background: none;
  border: none;
  color: var(--color-muted);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-sm);
}
.modal-close:hover { background: var(--color-bg); }
.modal-body { padding: var(--space-5) var(--space-6); }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border-light);
}

/* ── 登录页 ── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f2342 0%, #1a3a6b 100%);
  position: relative;
  overflow: hidden;
}
.login-page::before {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: rgba(29,111,206,0.15);
  top: -100px; right: -100px;
}
.login-page::after {
  content: '';
  position: absolute;
  width: 350px; height: 350px;
  border-radius: 50%;
  background: rgba(96,165,250,0.08);
  bottom: -80px; left: -80px;
}
.login-box {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  width: 420px;
  max-width: 92vw;
  box-shadow: var(--shadow-modal);
  position: relative;
  z-index: 1;
}
.login-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}
.login-brand-mark {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, #2a8fe8, #1d6fce);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; font-weight: 800; color: #fff;
}
.login-brand-name { font-size: var(--font-size-xl); font-weight: 700; color: var(--color-text); }
.login-brand-sub { font-size: var(--font-size-sm); color: var(--color-muted); }
.login-title { font-size: var(--font-size-lg); font-weight: 700; color: var(--color-text); margin-bottom: var(--space-2); }
.login-subtitle { font-size: var(--font-size-sm); color: var(--color-muted); margin-bottom: var(--space-6); }
.login-form { display: flex; flex-direction: column; gap: var(--space-4); }
.login-footer { text-align: center; font-size: var(--font-size-xs); color: var(--color-muted); margin-top: var(--space-5); }

/* ── 设置页侧边导航 ── */
.settings-layout { display: flex; gap: var(--space-5); align-items: start; }
.settings-nav { width: 200px; flex-shrink: 0; }
.settings-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 9px var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-soft);
  cursor: pointer;
  transition: all var(--duration-fast);
}
.settings-nav-item:hover { background: var(--color-primary-light); color: var(--color-primary); }
.settings-nav-item.active { background: var(--color-primary-light); color: var(--color-primary); font-weight: 600; }
.settings-content { flex: 1; }

/* ── 详情信息格 ── */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4) var(--space-5);
}
.detail-item {}
.detail-label {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  font-weight: 500;
  margin-bottom: 3px;
}
.detail-value {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  font-weight: 500;
}

/* ── 扫码输入 ── */
.scan-input-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary-light);
}
.scan-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--font-size-base);
  color: var(--color-text);
  outline: none;
}
.scan-icon { color: var(--color-primary); flex-shrink: 0; }

/* ── 响应式 ── */
@media (max-width: 1200px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .kanban { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform var(--duration-slow) var(--ease);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main { margin-left: 0; }
  .menu-toggle { display: flex; }
  .form-grid { grid-template-columns: 1fr; }
  .form-field.span-2 { grid-column: span 1; }
  .detail-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .kanban { grid-template-columns: 1fr; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar-left, .toolbar-right { width: 100%; }
  .content { padding: var(--space-4); }
  .table-wrap { overflow-x: auto; }
  .detail-grid { grid-template-columns: 1fr; }
  .settings-layout { flex-direction: column; }
  .settings-nav { width: 100%; }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .login-box { padding: 32px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}