/* 物流管理系统 - 公共样式表 */

/* ========== CSS变量定义 ========== */
:root {
  /* 主色系 */
  --primary-color: #1890ff;
  --primary-light: #40a9ff;
  --primary-dark: #096dd9;
  --primary-bg: #e6f7ff;
  
  /* 辅助色系 */
  --success-color: #52c41a;
  --warning-color: #faad14;
  --danger-color: #ff4d4f;
  --info-color: #909399;
  
  /* 中性色 */
  --text-primary: #262626;
  --text-secondary: #8c8c8c;
  --text-disabled: #bfbfbf;
  --border-color: #d9d9d9;
  --bg-color: #f5f5f5;
  --white: #ffffff;
  
  /* 间距 */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  
  /* 阴影 */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  
  /* 字体 */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  
  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ========== 重置样式 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-color);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-light);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ========== 布局容器 ========== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========== 头部导航 ========== */
.header {
  background: var(--white);
  box-shadow: var(--shadow-sm);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-lg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.logo {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 18px;
}

.header-nav {
  display: flex;
  gap: var(--spacing-xs);
}

.nav-item {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  font-size: 15px;
}

.nav-item:hover,
.nav-item.active {
  background: var(--primary-bg);
  color: var(--primary-color);
}

.header-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.header-user:hover {
  background: var(--bg-color);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 500;
}

.user-info {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-size: 14px;
  font-weight: 500;
}

.user-role {
  font-size: 12px;
  color: var(--text-secondary);
}

/* ========== 侧边栏 ========== */
.main-container {
  display: flex;
  flex: 1;
}

.sidebar {
  width: 240px;
  background: var(--white);
  border-right: 1px solid var(--border-color);
  padding: var(--spacing-md) 0;
  flex-shrink: 0;
}

.sidebar-menu {
  padding: 0 var(--spacing-sm);
}

.sidebar-title {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: var(--spacing-md);
}

.sidebar-item {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  margin: 2px 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.sidebar-item:hover {
  background: var(--bg-color);
  color: var(--primary-color);
}

.sidebar-item.active {
  background: var(--primary-bg);
  color: var(--primary-color);
  font-weight: 500;
}

.sidebar-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

.sidebar-arrow {
  margin-left: auto;
  font-size: 12px;
  transition: transform var(--transition-fast);
}

.sidebar-item.active .sidebar-arrow {
  transform: rotate(90deg);
}

/* ========== 主内容区 ========== */
.content {
  flex: 1;
  padding: var(--spacing-lg);
  overflow-x: auto;
}

.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.page-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

.breadcrumb-item {
  color: var(--text-secondary);
}

.breadcrumb-item.active {
  color: var(--text-primary);
}

.breadcrumb-separator {
  color: var(--text-disabled);
}

/* ========== 卡片组件 ========== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
}

.card-body {
  /* 内容区域 */
}

.card-footer {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

/* ========== 统计卡片 ========== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.stat-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

.stat-icon.blue {
  background: var(--primary-bg);
  color: var(--primary-color);
}

.stat-icon.green {
  background: #f6ffed;
  color: var(--success-color);
}

.stat-icon.orange {
  background: #fff7e6;
  color: var(--warning-color);
}

.stat-icon.red {
  background: #fff2f0;
  color: var(--danger-color);
}

.stat-content {
  flex: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.stat-value {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-change {
  font-size: 12px;
  margin-top: var(--spacing-xs);
}

.stat-change.up {
  color: var(--success-color);
}

.stat-change.down {
  color: var(--danger-color);
}

/* ========== 表格组件 ========== */
.table-wrapper {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  background: var(--bg-color);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
}

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

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

.table-actions {
  display: flex;
  gap: var(--spacing-xs);
}

/* ========== 按钮组件 - 统一美化样式 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  height: auto;
  min-height: 40px;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.3px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn:disabled::before {
  display: none;
}

.btn-primary {
  background: linear-gradient(135deg, #1890ff, #40a9ff);
  color: #fff;
  box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #40a9ff, #69c0ff);
  box-shadow: 0 6px 20px rgba(24, 144, 255, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

.btn-default {
  background: #fff;
  color: #595959;
  border: 1px solid #d9d9d9;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.btn-default:hover:not(:disabled) {
  border-color: #1890ff;
  color: #1890ff;
  box-shadow: 0 4px 12px rgba(24, 144, 255, 0.15);
}

.btn-success {
  background: linear-gradient(135deg, #52c41a, #73d13d);
  color: #fff;
  box-shadow: 0 4px 12px rgba(82, 196, 26, 0.3);
}

.btn-success:hover:not(:disabled) {
  background: linear-gradient(135deg, #73d13d, #95de64);
  box-shadow: 0 6px 20px rgba(82, 196, 26, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

.btn-warning {
  background: linear-gradient(135deg, #faad14, #ffc53d);
  color: #fff;
  box-shadow: 0 4px 12px rgba(250, 173, 20, 0.3);
}

.btn-warning:hover:not(:disabled) {
  background: linear-gradient(135deg, #ffc53d, #ffec3d);
  box-shadow: 0 6px 20px rgba(250, 173, 20, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

.btn-danger {
  background: linear-gradient(135deg, #ff4d4f, #ff7875);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 77, 79, 0.3);
}

.btn-danger:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff7875, #ffa39e);
  box-shadow: 0 6px 20px rgba(255, 77, 79, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

.btn-text {
  background: transparent;
  color: #1890ff;
  padding: 6px 12px;
  min-height: auto;
}

.btn-text:hover:not(:disabled) {
  background: #e6f7ff;
  color: #40a9ff;
}

.btn-link {
  background: transparent;
  color: #1890ff;
  padding: 0;
  min-height: auto;
  text-decoration: none;
}

.btn-link:hover:not(:disabled) {
  color: #40a9ff;
  text-decoration: underline;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
  min-height: 32px;
  border-radius: 6px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  min-height: 48px;
  border-radius: 10px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  min-height: auto;
  border: none;
  background: #fff;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.btn-icon:hover {
  background: #ff4d4f;
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 77, 79, 0.3);
  transform: translateY(-2px);
}

.btn-icon.success {
  background: #f6ffed;
  color: #52c41a;
}

.btn-icon.success:hover {
  background: #52c41a;
  color: #fff;
  box-shadow: 0 4px 12px rgba(82, 196, 26, 0.3);
}

.btn-circle {
  width: 40px;
  height: 40px;
  padding: 0;
  min-height: auto;
  border-radius: 50%;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-group {
  display: inline-flex;
  gap: 8px;
}

.btn-group .btn {
  flex: 1;
}

/* ========== 表单组件 ========== */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-primary);
}

.form-label.required::after {
  content: ' *';
  color: var(--danger-color);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background: var(--bg-color);
  cursor: not-allowed;
}

.form-hint {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.form-error {
  font-size: 12px;
  color: var(--danger-color);
  margin-top: var(--spacing-xs);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.form-section {
  margin-bottom: var(--spacing-lg);
}

.form-section:last-child {
  margin-bottom: 0;
}

.form-section-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-color);
}

.form-item {
  display: flex;
  flex-direction: column;
}

/* ========== 货物列表 ========== */
.goods-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.goods-item {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr auto;
  gap: var(--spacing-sm);
  align-items: flex-end;
  padding: var(--spacing-md);
  background: var(--bg-color);
  border-radius: var(--radius-md);
}

.add-goods-btn {
  margin-top: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px dashed var(--border-color);
  background: var(--white);
  border-radius: var(--radius-md);
  color: var(--primary-color);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 100%;
}

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

/* ========== 搜索栏 ========== */
.search-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
}

.search-item {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  min-width: 200px;
}

.search-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.search-input {
  padding: var(--spacing-sm);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 14px;
}

.search-actions {
  display: flex;
  align-items: flex-end;
  gap: var(--spacing-sm);
  margin-left: auto;
}

/* ========== 标签组件 ========== */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
}

.tag-primary {
  background: var(--primary-bg);
  color: var(--primary-color);
}

.tag-success {
  background: #f6ffed;
  color: var(--success-color);
}

.tag-warning {
  background: #fff7e6;
  color: var(--warning-color);
}

.tag-danger {
  background: #fff2f0;
  color: var(--danger-color);
}

.tag-default {
  background: var(--bg-color);
  color: var(--text-secondary);
}

/* ========== 分页组件 ========== */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.pagination-info {
  font-size: 14px;
  color: var(--text-secondary);
}

.pagination-controls {
  display: flex;
  gap: var(--spacing-xs);
}

.pagination-btn {
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--border-color);
  background: var(--white);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.pagination-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: var(--white);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========== 模态框 ========== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--white);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow: hidden;
  transform: scale(0.9);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-color);
}

.modal-body {
  padding: var(--spacing-lg);
  overflow-y: auto;
  max-height: calc(90vh - 130px);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

/* ========== 状态徽章 ========== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
}

.badge-primary {
  background: var(--primary-color);
  color: var(--white);
}

.badge-danger {
  background: var(--danger-color);
  color: var(--white);
}

/* ========== 工具栏 ========== */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.toolbar-left {
  display: flex;
  gap: var(--spacing-sm);
}

.toolbar-right {
  display: flex;
  gap: var(--spacing-sm);
}

/* ========== 空状态 ========== */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-lg);
}

.empty-icon {
  font-size: 64px;
  color: var(--text-disabled);
  margin-bottom: var(--spacing-md);
}

.empty-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ========== 加载状态 ========== */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ========== 下拉菜单 ========== */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 160px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xs) 0;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
}

.dropdown.active .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(5px);
}

.dropdown-item {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--bg-color);
}

/* ========== 进度条 ========== */
.progress {
  height: 8px;
  background: var(--bg-color);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--primary-color);
  transition: width var(--transition-normal);
}

/* ========== 时间线 ========== */
.timeline {
  position: relative;
  padding-left: 30px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--spacing-md);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--primary-color);
}

.timeline-item.active::before {
  background: var(--primary-color);
}

.timeline-time {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.timeline-content {
  background: var(--bg-color);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
  .header {
    padding: 0 var(--spacing-md);
  }
  
  .header-nav {
    display: none;
  }
  
  .sidebar {
    position: fixed;
    left: -240px;
    top: 64px;
    bottom: 0;
    z-index: 99;
    transition: left var(--transition-normal);
  }
  
  .sidebar.active {
    left: 0;
  }
  
  .content {
    padding: var(--spacing-md);
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .search-bar {
    flex-direction: column;
  }
  
  .search-item {
    width: 100%;
  }
  
  .toolbar {
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .table-wrapper {
    font-size: 12px;
  }
  
  .table th,
  .table td {
    padding: var(--spacing-sm);
  }
}

/* ========== 登录页面样式 ========== */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.login-box {
  width: 100%;
  max-width: 400px;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
}

.login-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.login-logo {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 32px;
  color: var(--white);
}

.login-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

.login-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: var(--spacing-xs);
}

.login-form .form-group {
  margin-bottom: var(--spacing-lg);
}

.login-btn {
  width: 100%;
  padding: var(--spacing-md);
  font-size: 16px;
}

/* ========== 小程序样式 ========== */
.mini-program {
  max-width: 375px;
  margin: 0 auto;
  background: var(--white);
  min-height: 100vh;
  position: relative;
}

.mini-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  color: var(--white);
  padding: var(--spacing-lg);
  padding-top: 48px;
}

.mini-header-title {
  font-size: 18px;
  font-weight: 600;
}

.mini-content {
  padding: var(--spacing-md);
}

.mini-navbar {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 375px;
  background: var(--white);
  display: flex;
  justify-content: space-around;
  padding: var(--spacing-sm) 0;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
}

.mini-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--text-secondary);
  font-size: 12px;
}

.mini-nav-item.active {
  color: var(--primary-color);
}

.mini-nav-icon {
  font-size: 24px;
}

/* ========== 图表容器 ========== */
.chart-container {
  position: relative;
  height: 300px;
  margin: var(--spacing-md) 0;
}

/* ========== 辅助类 ========== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }
.text-secondary { color: var(--text-secondary); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }

.modal-large {
  max-width: 900px;
}

.detail-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-color);
}

.tab-btn {
  padding: 12px 24px;
  border: none;
  background: transparent;
  font-size: 14px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.tab-btn:hover {
  color: var(--primary-color);
}

.tab-btn.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  background: var(--white);
}

.detail-section {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.detail-section:last-child {
  border-bottom: none;
}

.detail-section-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.detail-item label {
  font-size: 12px;
  color: var(--text-secondary);
}

.detail-item span {
  font-size: 14px;
  color: var(--text-primary);
}

.hidden { display: none; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--bg-color);
}

.upload-area:hover {
  border-color: var(--primary-color);
  background: var(--primary-bg);
}

.upload-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.upload-text {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.upload-hint {
  font-size: 12px;
  color: var(--text-secondary);
}

.file-list {
  margin-top: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.file-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.file-item:hover {
  background: var(--bg-color);
  box-shadow: var(--shadow-sm);
}

.file-icon {
  font-size: 24px;
}

.file-name {
  flex: 1;
  font-size: 14px;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-size {
  font-size: 12px;
  color: var(--text-secondary);
  min-width: 80px;
  text-align: right;
}

.file-remove {
  font-size: 16px;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.file-remove:hover {
  color: var(--danger-color);
  background: rgba(255, 77, 79, 0.1);
}

.full-width {
  grid-column: 1 / -1;
}

textarea.form-textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 14px;
  resize: vertical;
  min-height: 80px;
  transition: border-color var(--transition-fast);
}

textarea.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}