body {
  background-color: #f5f5f5;
  font-size: 14px;
}

.nav-tabs .nav-link {
  color: #495057;
}

.nav-tabs .nav-link.active {
  font-weight: 600;
}

.table th {
  white-space: nowrap;
  font-weight: 600;
}

.badge {
  font-size: 12px;
}

.email-tag {
  display: inline-flex;
  align-items: center;
  background: #e9ecef;
  border-radius: 4px;
  padding: 2px 8px;
  margin: 2px;
  font-size: 13px;
}

.email-tag .remove-btn {
  margin-left: 6px;
  cursor: pointer;
  color: #dc3545;
  border: none;
  background: none;
  font-size: 14px;
  line-height: 1;
  padding: 0;
}

.email-tag .remove-btn:hover {
  color: #a71d2a;
}

.card {
  border: none;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

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

/* 登录遮罩 */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.login-card {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  width: 100%;
  max-width: 360px;
}

.login-card h4 {
  text-align: center;
  color: #333;
}