:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-hover: #21262d;
  --border: #30363d;
  --text: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  --primary: #2f81f7;
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;
  --purple: #bc8cff;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}

#app { min-height: 100vh; }

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

.header {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-title {
  font-size: 18px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-actions { display: flex; gap: 8px; align-items: center; }

/* 导航标签页 */
.nav-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border);
  margin-bottom: 20px;
}
.nav-tab {
  padding: 10px 24px;
  font-size: 14px;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: -2px;
}
.nav-tab:hover {
  color: var(--text-primary);
}
.nav-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 600;
}

/* 登录页 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 400px;
}

.login-title {
  font-size: 20px;
  font-weight: 600;
  text-align: center;
  margin-bottom: 8px;
}

.login-subtitle {
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 24px;
  font-size: 13px;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.stat-value { font-size: 28px; font-weight: 700; }
.stat-label { color: var(--text-secondary); font-size: 13px; margin-top: 4px; }

/* 卡片 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-secondary); }

.input, .select, .textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}

.input:focus, .select:focus, .textarea:focus { border-color: var(--primary); }

/* 按钮 */
.btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-hover);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  font-family: inherit;
}

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

.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { opacity: 0.9; }

.btn-success { background: var(--success); border-color: var(--success); color: #fff; }

.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }

.btn-warning { background: var(--warning); border-color: var(--warning); color: #000; }

.btn-sm { padding: 4px 10px; font-size: 12px; }

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

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

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

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

th { color: var(--text-secondary); font-weight: 500; white-space: nowrap; }

tr:hover { background: var(--bg-hover); }

/* 标签 */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
}

.badge-vip { background: rgba(47, 129, 247, 0.2); color: var(--primary); }
.badge-lifetime { background: rgba(188, 140, 255, 0.2); color: var(--purple); }
.badge-free { background: rgba(110, 118, 129, 0.2); color: var(--text-muted); }
.badge-active { background: rgba(63, 185, 80, 0.2); color: var(--success); }
.badge-banned { background: rgba(248, 81, 73, 0.2); color: var(--danger); }
.badge-inactive { background: rgba(110, 118, 129, 0.2); color: var(--text-muted); }
.badge-warning { background: rgba(210, 153, 34, 0.2); color: #d29922; }
.badge-success { background: rgba(63, 185, 80, 0.2); color: var(--success); }
.badge-danger { background: rgba(248, 81, 73, 0.2); color: var(--danger); }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

/* 弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 480px;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }

/* 消息提示 */
.toast {
  position: fixed;
  top: 20px;
  right: 20px;
  padding: 12px 20px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 200;
  animation: slideIn 0.3s ease;
}

.toast-success { background: var(--success); color: #fff; }
.toast-error { background: var(--danger); color: #fff; }
.toast-info { background: var(--primary); color: #fff; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* 工具栏 */
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; align-items: center; }

.search-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  color: var(--text);
  font-size: 13px;
  flex: 1;
  min-width: 200px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

/* 设备信息 */
.device-info {
  background: var(--bg);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 12px;
  font-family: 'Consolas', 'Courier New', monospace;
  word-break: break-all;
}

.mono { font-family: 'Consolas', 'Courier New', monospace; }

.key-cell { font-family: 'Consolas', 'Courier New', monospace; font-size: 12px; }

.pagination {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-top: 16px;
}

.page-btn {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
}

.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }