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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: #f5f7fa;
  color: #333;
  min-height: 100vh;
}

#app {
  min-height: 100vh;
}

.page {
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* 登录页面 */
#login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

.login-box h1 {
  text-align: center;
  margin-bottom: 30px;
  color: #333;
  font-size: 24px;
}

#login-form input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
  transition: border-color 0.2s;
}

#login-form input:focus {
  outline: none;
  border-color: #667eea;
}

#login-form button {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s;
}

#login-form button:hover {
  opacity: 0.9;
}

/* 管理页面 */
header {
  background: white;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

header h1 {
  font-size: 20px;
  color: #333;
}

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

#admin-name {
  color: #666;
}

#logout-btn {
  padding: 8px 16px;
  background: #f5f5f5;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.2s;
}

#logout-btn:hover {
  background: #eee;
}

/* 导航 */
nav {
  background: white;
  padding: 0 24px;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  gap: 0;
}

.nav-btn {
  padding: 16px 24px;
  background: none;
  border: none;
  font-size: 14px;
  color: #666;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

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

.nav-btn.active {
  color: #667eea;
  border-bottom-color: #667eea;
}

/* 内容区 */
.tab-content {
  padding: 24px;
}

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

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

/* 按钮 */
.primary-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.primary-btn:hover {
  opacity: 0.9;
}

.secondary-btn {
  padding: 10px 20px;
  background: white;
  color: #666;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s;
}

.secondary-btn:hover {
  background: #f5f5f5;
}

.danger-btn {
  padding: 6px 12px;
  background: #ff4d4f;
  color: white;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.danger-btn:hover {
  opacity: 0.9;
}

/* 表格 */
table {
  width: 100%;
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

thead {
  background: #fafafa;
}

th, td {
  padding: 14px 16px;
  text-align: left;
}

th {
  font-weight: 500;
  color: #666;
  font-size: 13px;
  border-bottom: 1px solid #e0e0e0;
}

td {
  font-size: 14px;
  border-bottom: 1px solid #f0f0f0;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: #fafafa;
}

/* 状态标签 */
.status {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.status.active {
  background: #e6f7e6;
  color: #52c41a;
}

.status.expired {
  background: #fff2e8;
  color: #fa8c16;
}

/* 标签 */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}

.badge.trial {
  background: #fff7e6;
  color: #fa8c16;
}

.badge.formal {
  background: #e6f7ff;
  color: #1890ff;
}

.badge.local {
  background: #f6ffed;
  color: #52c41a;
}

.badge.manual {
  background: #f0f0f0;
  color: #666;
}

/* 弹窗 */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: white;
  padding: 24px;
  border-radius: 12px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.modal-content h3 {
  font-size: 18px;
  margin-bottom: 20px;
  color: #333;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  color: #666;
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #e0e0e0;
  border-radius: 6px;
  font-size: 14px;
  transition: border-color 0.2s;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
}

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

/* 操作按钮组 */
.action-btns {
  display: flex;
  gap: 8px;
}

.action-btns button {
  padding: 4px 10px;
  font-size: 12px;
}

.edit-btn {
  background: #e6f7ff;
  color: #1890ff;
  border: 1px solid #91d5ff;
  border-radius: 4px;
  cursor: pointer;
}

.edit-btn:hover {
  background: #bae7ff;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #999;
}

.empty-state p {
  font-size: 14px;
}

/* Toast提示 */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  background: #333;
  color: white;
  border-radius: 6px;
  font-size: 14px;
  z-index: 2000;
  animation: fadeIn 0.3s ease;
}

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

.toast.error {
  background: #ff4d4f;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}