/* ==================== 基础样式 ==================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  width: 100%;
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: #f5f7fa;
  color: #333;
}

/* ==================== 容器和布局 ==================== */
.admin-container {
  display: flex;
  width: 100%;
  height: 100vh;
}

.page {
  display: none;
  width: 100%;
  height: 100%;
}

.page.active {
  display: flex;
  flex-direction: column;
}

/* ==================== 登录页面 ==================== */
#loginPage {
  display: none !important;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

#loginPage.active {
  display: flex !important;
}

.login-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

.login-header h1 {
  font-size: 28px;
  color: #667eea;
  margin-bottom: 8px;
}

.login-header p {
  color: #999;
  font-size: 14px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: #333;
}

.form-group input {
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.3s;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.error-msg {
  color: #ef4444;
  font-size: 12px;
  min-height: 16px;
}

/* ==================== 按钮样式 ==================== */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-primary {
  background-color: #667eea;
  color: white;
}

.btn-primary:hover {
  background-color: #5568d3;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-primary:disabled {
  background-color: #ccc;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background-color: #f3f4f6;
  color: #333;
  border: 1px solid #e5e7eb;
}

.btn-secondary:hover {
  background-color: #e5e7eb;
}

.btn-text {
  background-color: transparent;
  color: #667eea;
  padding: 8px 16px;
}

.btn-text:hover {
  background-color: rgba(102, 126, 234, 0.1);
}

.btn-danger {
  background-color: #ef4444;
  color: white;
}

.btn-danger:hover {
  background-color: #dc2626;
}

.btn-success {
  background-color: #10b981;
  color: white;
}

.btn-success:hover {
  background-color: #059669;
}

/* ==================== 主页面布局 ==================== */
#mainPage {
  display: none;
  flex-direction: column;
}

#mainPage.active {
  display: flex;
}

.admin-header {
  background-color: white;
  padding: 16px 24px;
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: #667eea;
}

.subtitle {
  color: #999;
  font-size: 12px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.admin-name {
  color: #333;
  font-size: 14px;
}

/* ==================== 侧边栏 ==================== */
.admin-sidebar {
  width: 240px;
  background-color: #ffffff;
  border-right: 1px solid #e5e7eb;
  padding: 20px 0;
  overflow-y: auto;
  position: fixed;
  left: 0;
  top: 57px;
  bottom: 0;
  z-index: 10;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.nav-section {
  padding: 0 12px;
}

.nav-title {
  font-size: 12px;
  font-weight: 700;
  color: #999;
  text-transform: uppercase;
  padding: 12px 12px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  color: #666;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.3s;
  font-size: 14px;
  margin-bottom: 4px;
}

.nav-item:hover {
  background-color: #f3f4f6;
  color: #667eea;
}

.nav-item.active {
  background-color: rgba(102, 126, 234, 0.1);
  color: #667eea;
  font-weight: 600;
}

.nav-item .icon {
  font-size: 18px;
}

/* ==================== 内容区域 ==================== */
.admin-content {
  margin-left: 240px;
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

.content-page {
  display: none;
}

.content-page.active {
  display: block;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 24px;
  margin-bottom: 8px;
}

.page-header p {
  color: #666;
  font-size: 14px;
}

.header-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.search-input,
.filter-select {
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  background-color: white;
}

.search-input::placeholder {
  color: #999;
}

.search-input:focus,
.filter-select:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ==================== 仪表盘卡片 ==================== */
.dashboard-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.data-card {
  background-color: white;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border-left: 4px solid #667eea;
  transition: transform 0.3s, box-shadow 0.3s;
}

.data-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.card-title {
  color: #999;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.card-value {
  font-size: 32px;
  font-weight: 700;
  color: #333;
  margin-bottom: 12px;
}

.card-subtitle {
  color: #999;
  font-size: 12px;
}

/* ==================== 图表 ==================== */
.charts-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.chart-card {
  background-color: white;
  padding: 24px;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.chart-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: #333;
}

.chart-container {
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==================== 表格 ==================== */
.table-section {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin-bottom: 20px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table thead {
  background-color: #f9fafb;
  border-bottom: 1px solid #e5e7eb;
}

.admin-table th {
  padding: 16px;
  text-align: left;
  font-weight: 600;
  font-size: 14px;
  color: #666;
}

.admin-table td {
  padding: 16px;
  border-bottom: 1px solid #f3f4f6;
  font-size: 14px;
  color: #333;
}

.admin-table tbody tr:hover {
  background-color: #f9fafb;
}

.status-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.status-pending {
  background-color: #fef3c7;
  color: #92400e;
}

.status-processing {
  background-color: #dbeafe;
  color: #075985;
}

.status-completed {
  background-color: #d1fae5;
  color: #065f46;
}

.status-failed {
  background-color: #fee2e2;
  color: #7f1d1d;
}

.action-buttons {
  display: flex;
  gap: 8px;
}

.action-btn {
  padding: 6px 12px;
  font-size: 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  background-color: white;
  cursor: pointer;
  transition: all 0.3s;
}

.action-btn:hover {
  border-color: #667eea;
  color: #667eea;
}

/* ==================== 分页 ==================== */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 20px;
  border-top: 1px solid #e5e7eb;
}

.page-btn {
  padding: 8px 16px;
  border: 1px solid #ddd;
  border-radius: 6px;
  background-color: white;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s;
}

.page-btn:hover:not(:disabled) {
  border-color: #667eea;
  color: #667eea;
}

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

.page-info {
  color: #666;
  font-size: 14px;
}

/* ==================== 趋势表 ==================== */
.trend-section {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  padding: 24px;
}

.trend-header {
  margin-bottom: 20px;
}

.trend-header h3 {
  font-size: 16px;
  color: #333;
}

.trend-table {
  width: 100%;
  border-collapse: collapse;
}

.trend-table th {
  padding: 12px;
  text-align: left;
  font-weight: 600;
  color: #666;
  border-bottom: 2px solid #e5e7eb;
}

.trend-table td {
  padding: 12px;
  border-bottom: 1px solid #f3f4f6;
}

/* ==================== 设置页面 ==================== */
.settings-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 20px;
}

.settings-card {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.settings-title {
  padding: 20px;
  border-bottom: 1px solid #e5e7eb;
  font-size: 16px;
  font-weight: 600;
  color: #333;
}

.settings-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.setting-item label {
  font-size: 14px;
  font-weight: 600;
  color: #333;
}

.input-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.input-group input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
}

.input-group .unit {
  color: #666;
  font-size: 14px;
}

.date-range {
  display: flex;
  gap: 12px;
  align-items: center;
}

.date-range input {
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
}

.date-range span {
  color: #666;
}

/* ==================== 模态框 ==================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid #e5e7eb;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 18px;
  color: #333;
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.close-btn:hover {
  color: #333;
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 20px 24px;
  border-top: 1px solid #e5e7eb;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background-color: #f9fafb;
}

.modal-footer .order-actions {
  display: flex;
  gap: 8px;
  flex: 1;
}

.modal-footer > .btn {
  min-width: 80px;
}

/* ==================== 表单控件 ==================== */
.form-control {
  padding: 10px 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 14px;
  width: 100%;
  transition: border-color 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ==================== 加载状态 ==================== */
.loading {
  text-align: center;
  color: #999;
  padding: 40px 20px;
}

.loading::after {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-left: 8px;
  border: 2px solid #ddd;
  border-top-color: #667eea;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: middle;
}

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

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
  .dashboard-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .charts-section {
    grid-template-columns: 1fr;
  }

  .settings-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .admin-sidebar {
    width: 0;
    transform: translateX(-240px);
    transition: transform 0.3s;
  }

  .admin-sidebar.active {
    transform: translateX(0);
  }

  .admin-content {
    margin-left: 0;
  }

  .dashboard-cards {
    grid-template-columns: 1fr;
  }

  .admin-table {
    font-size: 12px;
  }

  .admin-table th,
  .admin-table td {
    padding: 12px 8px;
  }

  .header-actions {
    flex-direction: column;
  }

  .search-input,
  .filter-select {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .login-card {
    padding: 24px;
    border-radius: 8px;
  }

  .modal-content {
    width: 95%;
  }

  .page-header h1 {
    font-size: 20px;
  }

  .card-value {
    font-size: 24px;
  }
}