* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: #f5f7fa;
  color: #333;
  min-height: 100vh;
}

/* 导航�?*/
.navbar {
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-brand {
  font-size: 20px;
  font-weight: 600;
  color: #1890ff;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  border-radius: 6px;
  text-decoration: none;
  color: #666;
  font-size: 14px;
  transition: all 0.2s;
}

.nav-link:hover {
  background: #f0f0f0;
  color: #1890ff;
}

.nav-link.active {
  background: #1890ff;
  color: #fff;
}

/* 主容�?*/
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

/* 页面标题 */
.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

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

/* 卡片 */
.card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  margin-bottom: 20px;
}

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

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: #1890ff;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 14px;
  color: #999;
}

.stat-card.success .stat-value { color: #52c41a; }
.stat-card.warning .stat-value { color: #faad14; }
.stat-card.danger .stat-value { color: #ff4d4f; }

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

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

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #f0f0f0;
}

th {
  background: #fafafa;
  font-weight: 600;
  color: #666;
  font-size: 14px;
}

td {
  font-size: 14px;
}

tr:hover {
  background: #fafafa;
}

/* 按钮 */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: #1890ff;
  color: #fff;
}

.btn-primary:hover {
  background: #40a9ff;
}

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

.btn-danger {
  background: #ff4d4f;
  color: #fff;
}

.btn-default {
  background: #f0f0f0;
  color: #666;
}

.btn-sm {
  padding: 4px 12px;
  font-size: 12px;
}

/* 表单 */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  color: #666;
}

.form-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d9d9d9;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: #1890ff;
  box-shadow: 0 0 0 2px rgba(24,144,255,0.1);
}

.form-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #d9d9d9;
  border-radius: 6px;
  font-size: 14px;
  background: #fff;
}

/* 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: all 0.2s;
}

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

.modal {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

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

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 20px;
  cursor: pointer;
  color: #999;
  border-radius: 6px;
}

.modal-close:hover {
  background: #f0f0f0;
  color: #666;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

/* 筛选栏 */
.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 20px;
}

.filter-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-item label {
  font-size: 14px;
  color: #666;
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
}

.tag-success {
  background: #f6ffed;
  color: #52c41a;
  border: 1px solid #b7eb8f;
}

.tag-warning {
  background: #fffbe6;
  color: #faad14;
  border: 1px solid #ffe58f;
}

.tag-danger {
  background: #fff2f0;
  color: #ff4d4f;
  border: 1px solid #ffccc7;
}

.tag-default {
  background: #fafafa;
  color: #999;
  border: 1px solid #d9d9d9;
}

/* 空状�?*/
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: #999;
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

/* 加载动画 */
.loading {
  text-align: center;
  padding: 24px;
  color: #999;
}

/* Toast 提示 */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  background: #333;
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  z-index: 2000;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.success {
  background: #52c41a;
}

.toast.error {
  background: #ff4d4f;
}

/* 图表容器 */
.chart-container {
  position: relative;
  height: 300px;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid #d9d9d9;
  background: #fff;
  border-radius: 6px;
  cursor: pointer;
}

.pagination button:hover:not(:disabled) {
  border-color: #1890ff;
  color: #1890ff;
}

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

.pagination span {
  padding: 6px 12px;
  color: #666;
  font-size: 14px;
}

/* 工具�?*/
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

/* 账号管理页面 */
.page-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  border-bottom: 1px solid #f0f0f0;
  padding-bottom: 16px;
}

.tab-btn {
  padding: 8px 16px;
  border: none;
  background: none;
  color: #666;
  font-size: 14px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}

.tab-btn:hover {
  background: #f0f0f0;
  color: #1890ff;
}

.tab-btn.active {
  background: #1890ff;
  color: #fff;
}

.filter-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.filter-tab {
  padding: 6px 14px;
  border: 1px solid #d9d9d9;
  background: #fff;
  border-radius: 6px;
  font-size: 13px;
  color: #666;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-tab:hover {
  border-color: #1890ff;
  color: #1890ff;
}

.filter-tab.active {
  background: #1890ff;
  color: #fff;
  border-color: #1890ff;
}

.account-card {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.account-info {
  flex: 1;
}

.account-name {
  font-size: 15px;
  font-weight: 600;
  color: #333;
  margin-bottom: 4px;
}

.account-meta {
  font-size: 13px;
  color: #999;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.account-actions {
  display: flex;
  gap: 8px;
}

.count-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.count-badge.available {
  background: #f6ffed;
  color: #52c41a;
  border: 1px solid #b7eb8f;
}

.count-badge.exhausted {
  background: #fff2f0;
  color: #ff4d4f;
  border: 1px solid #ffccc7;
}

.count-badge.disabled {
  background: #fafafa;
  color: #999;
  border: 1px solid #d9d9d9;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.enabled { background: #52c41a; }
.status-dot.disabled { background: #999; }

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: #999;
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

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

.records-table th,
.records-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid #f0f0f0;
}

.records-table th {
  background: #fafafa;
  font-weight: 600;
  color: #666;
  font-size: 13px;
}

.records-table td {
  font-size: 14px;
}

.records-table tr:hover {
  background: #fafafa;
}