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

:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --bg-input: #1e293b;
  --border-color: #475569;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

/* 登录界面 */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-header h1 {
  font-size: 28px;
  margin-bottom: 8px;
}

.login-header p {
  color: var(--text-secondary);
  font-size: 14px;
}

.btn-login {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  margin-top: 10px;
}

.login-error {
  margin-top: 16px;
  padding: 12px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  color: var(--error);
  font-size: 14px;
  text-align: center;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* 头部 */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 20px 30px;
  background: var(--bg-secondary);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.header h1 {
  font-size: 24px;
  font-weight: 600;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.stats {
  display: flex;
  gap: 20px;
}

.btn-logout {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}

.btn-logout:hover {
  background: var(--error);
  border-color: var(--error);
  color: white;
}

.stat-item {
  text-align: center;
  padding: 10px 20px;
  background: var(--bg-card);
  border-radius: 8px;
}

.stat-value {
  display: block;
  font-size: 28px;
  font-weight: 700;
}

.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
}

.stat-item.active .stat-value { color: var(--success); }
.stat-item.expired .stat-value { color: var(--warning); }
.stat-item.revoked .stat-value { color: var(--error); }

/* Tab 导航 */
.nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  background: var(--bg-secondary);
  padding: 8px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  padding: 12px 20px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

.tab-btn.active {
  background: var(--accent);
  color: white;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* 添加区块 */
.add-section, .config-section, .rules-section, .files-section {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
}

.add-section h2, .config-section h2, .rules-section h2, .files-section h2 {
  margin-bottom: 20px;
  font-size: 18px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-header h2 {
  margin-bottom: 0;
}

.section-desc {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 20px;
}

.add-form .form-row, .config-form .form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  flex: 1;
}

.form-group.flex-2 { flex: 2; }

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

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
}

.form-group textarea {
  resize: none;
  font-family: 'Consolas', monospace;
  font-size: 12px;
}

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

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-actions {
  margin-top: 20px;
}

.days-input {
  display: flex;
  align-items: center;
  gap: 8px;
}

.days-input input {
  width: 100px;
}

.days-input span {
  color: var(--text-secondary);
}

.quick-days {
  display: flex;
  gap: 8px;
}

.quick-days button {
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}

.quick-days button:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

/* 按钮 */
.btn-primary {
  padding: 10px 24px;
  background: var(--accent);
  border: none;
  border-radius: 8px;
  color: white;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

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

.btn-secondary {
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-secondary);
  cursor: pointer;
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
}

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

.mt-2 { margin-top: 8px; }

/* 列表 */
.list-section {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  border: 1px solid var(--border-color);
}

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

.list-header h2 {
  font-size: 18px;
}

.list-actions {
  display: flex;
  gap: 10px;
}

.list-actions input {
  padding: 8px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  width: 250px;
}

.table-wrapper {
  overflow-x: auto;
}

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

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  background: var(--bg-card);
}

tr:hover {
  background: rgba(59, 130, 246, 0.05);
}

.loading, .empty {
  text-align: center;
  color: var(--text-muted);
  padding: 40px;
}

/* 状态标签 */
.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.status-active { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.status-expired { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.status-revoked { background: rgba(239, 68, 68, 0.2); color: var(--error); }

/* 机器码显示 */
.machine-code {
  font-family: 'Consolas', monospace;
  font-size: 11px;
  color: var(--text-muted);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.machine-code:hover {
  color: var(--accent);
}

/* 客户信息 */
.customer-info {
  max-width: 150px;
}

.customer-name {
  font-weight: 500;
  color: var(--text-primary);
}

.customer-remark {
  font-size: 12px;
  color: var(--text-muted);
}

/* 电脑信息 */
.pc-info {
  font-size: 12px;
  color: var(--text-secondary);
  max-width: 180px;
}

.pc-info div {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 操作按钮 */
.action-btns {
  display: flex;
  gap: 6px;
}

.action-btn {
  padding: 4px 10px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}

.action-btn.edit {
  background: var(--accent);
  color: white;
}

.action-btn.revoke {
  background: var(--error);
  color: white;
}

.action-btn.activate {
  background: var(--success);
  color: white;
}

.action-btn.delete {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
}

.action-btn:hover {
  opacity: 0.8;
}

/* 文件列表 */
.files-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.file-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-card);
  border-radius: 8px;
}

.file-name {
  flex: 1;
  font-family: 'Consolas', monospace;
  font-size: 13px;
}

.file-size {
  width: 100px;
  text-align: right;
  color: var(--text-muted);
  font-size: 12px;
}

.file-time {
  width: 120px;
  text-align: right;
  color: var(--text-muted);
  font-size: 12px;
}

/* 规则卡片 */
.rules-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.rule-card {
  background: var(--bg-card);
  border-radius: 10px;
  padding: 16px;
  border: 1px solid var(--border-color);
}

.rule-card.disabled {
  opacity: 0.6;
}

.rule-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.rule-name {
  font-weight: 600;
  font-size: 15px;
}

.rule-status {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
}

.rule-status.enabled {
  background: rgba(34, 197, 94, 0.2);
  color: var(--success);
}

.rule-status.disabled {
  background: rgba(100, 116, 139, 0.2);
  color: var(--text-muted);
}

.rule-content {
  margin-bottom: 12px;
}

.rule-item {
  display: flex;
  gap: 8px;
  font-size: 13px;
  margin-bottom: 4px;
}

.rule-item .label {
  color: var(--text-muted);
}

.rule-item .value {
  color: var(--text-secondary);
}

.rule-actions {
  display: flex;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

/* 关键词编辑器 */
.keywords-editor {
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px;
  background: var(--bg-input);
}

.keyword-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.keyword-row:last-child {
  margin-bottom: 0;
}

.keyword-row input {
  flex: 1;
  min-width: 100px;
}

.keyword-row select {
  width: 80px;
}

.keyword-row span {
  color: var(--text-muted);
}

.btn-remove {
  width: 28px;
  height: 28px;
  background: var(--error);
  border: none;
  border-radius: 4px;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-remove:hover {
  opacity: 0.8;
}

/* 弹窗 */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 24px;
  width: 400px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-color);
}

.modal-content.modal-lg {
  width: 600px;
}

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

.modal-header h3 {
  font-size: 18px;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 20px;
  cursor: pointer;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  padding: 14px 24px;
  background: var(--success);
  color: white;
  border-radius: 8px;
  font-size: 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s;
  z-index: 2000;
}

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

.toast.error {
  background: var(--error);
}

/* 响应式 */
@media (max-width: 1200px) {
  .add-form .form-row, .config-form .form-row {
    flex-wrap: wrap;
  }
  
  .form-group {
    min-width: 200px;
  }
}

@media (max-width: 768px) {
  .header {
    flex-direction: column;
    gap: 20px;
  }
  
  .stats {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .nav-tabs {
    flex-direction: column;
  }
  
  .rules-list {
    grid-template-columns: 1fr;
  }
}