:root {
  --primary: #e91e63;
  --primary-light: #f8bbd0;
  --primary-bg: #fce4ec;
  --success: #4caf50;
  --warning: #ff9800;
  --danger: #f44336;
  --info: #2196f3;
  --text: #333;
  --text-secondary: #666;
  --border: #e0e0e0;
  --bg: #f5f6fa;
  --card-bg: #fff;
  --sidebar-width: 220px;
  --sidebar-bg: #fff;
  --topbar-height: 56px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100%;
}
.hidden { display: none !important; }

/* 登录页 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-bg) 0%, #fff 100%);
}
.login-card {
  background: #fff;
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(233, 30, 99, 0.15);
  width: 100%;
  max-width: 400px;
}
.login-logo {
  font-size: 32px;
  font-weight: bold;
  color: var(--primary);
  text-align: center;
  margin-bottom: 8px;
}
.login-card h2 {
  text-align: center;
  margin: 0 0 24px;
  font-size: 18px;
  color: var(--text-secondary);
  font-weight: normal;
}

/* 表单 */
.form-group {
  margin-bottom: 16px;
}
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--text-secondary);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  transition: border-color .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-card {
  background: var(--card-bg);
  padding: 32px;
  border-radius: 12px;
  max-width: 480px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: opacity .2s, transform .1s;
}
.btn:hover { opacity: .9; }
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-info { background: var(--info); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; padding: 12px; font-size: 16px; }

.error-msg { color: var(--danger); font-size: 13px; margin: 8px 0; min-height: 18px; }
.success-msg { color: var(--success); font-size: 13px; margin: 8px 0; min-height: 18px; }

/* 主布局 */
.main-layout {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  transition: transform .3s;
}
.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
}
.sidebar-header .logo {
  font-size: 24px;
  font-weight: bold;
  color: var(--primary);
}
.sidebar-header .subtitle {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.sidebar-nav {
  padding: 12px;
}
.nav-item {
  display: flex;
  align-items: center;
  padding: 12px;
  color: var(--text);
  text-decoration: none;
  border-radius: 8px;
  margin-bottom: 4px;
  transition: background .2s;
}
.nav-item:hover { background: var(--primary-bg); }
.nav-item.active { background: var(--primary); color: #fff; }
.nav-item .icon { margin-right: 10px; font-size: 16px; }

.content-wrapper {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.topbar {
  height: var(--topbar-height);
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  margin-right: 12px;
}
.topbar-title {
  font-size: 18px;
  font-weight: 500;
  flex: 1;
}
.topbar-right {
  font-size: 14px;
  color: var(--text-secondary);
}
.user-menu {
  position: relative;
}
.user-menu-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: background .2s;
}
.user-menu-trigger:hover {
  background: var(--primary-bg);
}
.user-menu-arrow {
  font-size: 10px;
  color: var(--text-secondary);
}
.user-menu-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  background: var(--card-bg);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  padding: 6px 0;
  z-index: 100;
}
.user-menu-dropdown.hidden {
  display: none;
}
.user-menu-item {
  display: block;
  padding: 10px 16px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  transition: background .2s;
  white-space: nowrap;
}
.user-menu-item:hover {
  background: var(--primary-bg);
}
.user-menu-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 0;
}
.main-content {
  flex: 1;
  padding: 24px;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--card-bg);
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.stat-value {
  font-size: 28px;
  font-weight: bold;
  color: var(--primary);
}
.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 表格 */
.table-card {
  background: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.data-table th {
  background: #fafafa;
  font-weight: 500;
  color: var(--text-secondary);
}
.data-table tbody tr:hover { background: #fafafa; }
.data-table td { vertical-align: middle; }

.page-toolbar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.page-toolbar input,
.page-toolbar select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  min-width: 180px;
}

/* 状态标签 */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}
.badge-pending { background: #fff3e0; color: #ef6c00; }
.badge-approved { background: #e8f5e9; color: #2e7d32; }
.badge-rejected { background: #ffebee; color: #c62828; }
.badge-closed { background: #eceff1; color: #546e7a; }
.badge-active { background: #e8f5e9; color: #2e7d32; }
.badge-disabled { background: #ffebee; color: #c62828; }
.badge-level-1 { background: #e8f5e9; color: #2e7d32; }
.badge-level-2 { background: #fff3e0; color: #ef6c00; }
.badge-level-3 { background: #ffebee; color: #c62828; }

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
}
.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
}
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:disabled { opacity: .5; cursor: not-allowed; }

/* 弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 20px;
}
.modal {
  background: #fff;
  border-radius: 12px;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 { margin: 0; }
.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
}
.modal-body {
  padding: 20px;
  overflow-y: auto;
}
.modal-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.detail-row {
  display: flex;
  padding: 10px 0;
  border-bottom: 1px solid #f0f0f0;
}
.detail-row:last-child { border-bottom: none; }
.detail-label {
  width: 100px;
  color: var(--text-secondary);
  flex-shrink: 0;
}
.detail-value { flex: 1; word-break: break-all; }
.detail-images { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.detail-images img { width: 80px; height: 80px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); cursor: pointer; }

/* Toast */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  background: #333;
  color: #fff;
  padding: 12px 20px;
  border-radius: 8px;
  z-index: 300;
  opacity: 0;
  transform: translateY(-10px);
  transition: all .3s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* 响应式 */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open { transform: translateX(0); }
  .content-wrapper { margin-left: 0; }
  .menu-toggle { display: block; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .data-table { display: block; overflow-x: auto; }
}

.dashboard-section h3 { margin: 24px 0 12px; font-size: 16px; }