:root {
  --primary: #22d3ee;
  --primary-hover: #0891b2;
  --danger: #f43f5e;
  --success: #10b981;
  --warning: #f59e0b;
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-sidebar: #0f172a;
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --border: #334155;
  --input-bg: #1e293b;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* 登录页 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
}

.login-card {
  background: var(--bg-card);
  padding: 40px;
  border-radius: 16px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  width: 100%;
  max-width: 400px;
}

.login-card h1 {
  text-align: center;
  font-size: 1.8rem;
  margin-bottom: 8px;
  background: linear-gradient(90deg, #22d3ee, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-card .subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 32px;
}

.error-msg {
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: #f43f5e;
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.85rem;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  font-weight: 500;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.btn-primary {
  width: 100%;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(90deg, #22d3ee, #8b5cf6);
  color: white;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

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

.btn-secondary {
  padding: 10px 20px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: var(--border);
}

/* 主界面布局 */
.main-app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(90deg, #22d3ee, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-header p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: all 0.2s;
  margin-bottom: 4px;
}

.nav-item:hover {
  background: rgba(34, 211, 238, 0.1);
  color: var(--text);
}

.nav-item.active {
  background: rgba(34, 211, 238, 0.15);
  color: var(--primary);
}

.nav-icon {
  font-size: 1.1rem;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.user-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.btn-logout {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 0.85rem;
}

.btn-user {
  display: block;
  text-align: center;
  color: var(--primary);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 8px;
  border-radius: 6px;
  transition: background 0.2s;
}

.btn-user:hover {
  background: rgba(34, 211, 238, 0.1);
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 32px;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
}

.header-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}

.header-actions select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.9rem;
}

.btn-refresh {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
}

.btn-refresh:hover {
  background: var(--border);
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

.stat-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 卡片 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  color: var(--text);
}

.card p {
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.95rem;
}

/* 数据表格 */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  padding: 12px 16px;
  background: rgba(34, 211, 238, 0.1);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.data-table tbody tr:hover {
  background: rgba(34, 211, 238, 0.05);
}

/* 状态标签 */
.status-active {
  color: var(--success);
  font-weight: 600;
}

.status-disabled {
  color: var(--warning);
  font-weight: 600;
}

.status-locked {
  color: var(--danger);
  font-weight: 600;
}

/* 按钮组 */
.btn-group {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.btn-group .btn-primary {
  width: auto;
  padding: 10px 24px;
}

.btn-group .btn-secondary {
  padding: 10px 24px;
}

/* 操作按钮 */
.btn-action {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.85rem;
  margin-right: 8px;
}

.btn-action:hover {
  background: var(--border);
  color: var(--text);
}

.btn-action.danger {
  border-color: var(--danger);
  color: var(--danger);
}

.btn-action.danger:hover {
  background: rgba(244, 63, 94, 0.1);
}

/* 状态消息 */
.status-msg {
  padding: 12px 16px;
  border-radius: 8px;
  margin-top: 16px;
  font-size: 0.9rem;
}

.status-msg.success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
}

.status-msg.error {
  background: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: var(--danger);
}

/* 模态框 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 450px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.modal-content h3 {
  margin-bottom: 24px;
  font-size: 1.2rem;
}

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

/* 响应式 */
@media (max-width: 768px) {
  .sidebar {
    width: 60px;
  }

  .sidebar-header h2,
  .sidebar-header p,
  .nav-item span,
  .user-info span,
  .btn-user,
  .sidebar-footer {
    display: none;
  }

  .sidebar-header {
    padding: 16px;
    text-align: center;
  }

  .nav-item {
    justify-content: center;
    padding: 12px;
  }

  .main-content {
    margin-left: 60px;
    padding: 16px;
  }

  .model-grid {
    grid-template-columns: 1fr;
  }
}

/* 模型网格 */
.model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 16px;
}

.model-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  cursor: pointer;
  transition: all 0.2s;
}

.model-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.model-card.active {
  border-color: var(--success);
  background: rgba(16, 185, 129, 0.1);
}

.model-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}

.model-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.model-status {
  font-size: 0.78rem;
  color: var(--primary);
}

.model-card.active .model-status {
  color: var(--success);
  font-weight: 600;
}

/* 状态指示器 */
.status-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--bg);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.status-light {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transition: all 0.3s;
}

.status-light.green {
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

.status-light.yellow {
  background: var(--warning);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.6);
}

.status-light.red {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(244, 63, 94, 0.6);
}

.status-text {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  flex: 1;
}

/* ===== Toggle Switch ===== */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}
.toggle-switch input { display: none; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 26px;
  cursor: pointer;
  transition: background 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 20px; height: 20px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.toggle-switch input:checked + .toggle-slider {
  background: var(--primary);
}
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(22px);
}

/* 角色下拉框 */
td select {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.85rem;
  cursor: pointer;
}
td select:focus {
  outline: none;
  border-color: var(--primary);
}