/* Content */
    .content {
      padding: 24px 32px 40px;
      flex: 1;
    }

    .breadcrumb {
      color: var(--text-secondary);
      font-size: 13px;
      margin-bottom: 8px;
    }

    .breadcrumb span {
      color: var(--text);
    }

    .page-title {
      font-size: 24px;
      font-weight: 600;
      margin-bottom: 8px;
    }

    .page-desc {
      color: var(--text-secondary);
      font-size: 14px;
      margin-bottom: 24px;
    }

    .stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-bottom: 24px;
    }

    @media (max-width: 1200px) {
      .stats-row {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 768px) {
      .stats-row {
        grid-template-columns: 1fr;
      }
      .panels-row {
        grid-template-columns: 1fr !important;
      }
      .header__search-wrap {
        display: none;
      }
    }

    .stat-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 20px;
      transition: box-shadow 0.2s, transform 0.2s;
    }

    .stat-card:hover {
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
      transform: translateY(-2px);
    }

    .stat-card__label {
      color: var(--text-secondary);
      font-size: 13px;
      margin-bottom: 12px;
    }

    .stat-card__value {
      font-size: 28px;
      font-weight: 600;
      color: var(--text);
    }

    .panels-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .panel {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 8px;
      overflow: hidden;
      min-height: 280px;
      display: flex;
      flex-direction: column;
    }

    .panel__head {
      padding: 16px 20px;
      border-bottom: 1px solid var(--border);
    }

    .panel__title {
      font-size: 15px;
      font-weight: 600;
      margin-bottom: 4px;
    }

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

    .panel__table-wrap {
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .panel__thead {
      display: grid;
      grid-template-columns: 1fr 140px;
      background: #fafafa;
      padding: 10px 20px;
      font-size: 13px;
      color: var(--text-secondary);
      border-bottom: 1px solid var(--border);
    }

    .panel__empty {
      flex: 1;
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-secondary);
      font-size: 14px;
      padding: 48px;
    }

    .view-hidden {
      display: none !important;
    }

    .page-head-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 20px;
    }

    .page-head-row .page-title {
      margin-bottom: 0;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      font-size: 14px;
      border-radius: 6px;
      cursor: pointer;
      border: 1px solid transparent;
      font-family: inherit;
      transition: opacity 0.2s, border-color 0.2s, background 0.2s;
    }

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

    .btn-primary:hover {
      opacity: 0.92;
    }

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

    .btn-default:hover {
      color: var(--primary);
      border-color: var(--primary);
    }

    .card {
      background: #fff;
      border-radius: 8px;
      padding: 20px 24px;
      margin-bottom: 16px;
      box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    }

    .filter-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px 24px;
      margin-bottom: 20px;
    }

    @media (max-width: 1100px) {
      .filter-grid {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 560px) {
      .filter-grid {
        grid-template-columns: 1fr;
      }
    }

    .filter-grid--3 {
      grid-template-columns: repeat(3, 1fr);
    }

    @media (max-width: 900px) {
      .filter-grid--3 {
        grid-template-columns: 1fr;
      }
    }

    .filter-grid--2 {
      grid-template-columns: repeat(2, 1fr);
    }

    @media (max-width: 900px) {
      .filter-grid--2 {
        grid-template-columns: 1fr;
      }
    }


    /* Modal — 新建课程 */
    .modal-backdrop {
      position: fixed;
      inset: 0;
      z-index: 1000;
      background: rgba(0, 0, 0, 0.45);
      display: none;
      align-items: center;
      justify-content: center;
      padding: 24px;
    }

    .modal-backdrop.is-open {
      display: flex;
    }

    .modal {
      width: 100%;
      max-width: 640px;
      max-height: calc(100vh - 48px);
      background: #fff;
      border-radius: 8px;
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
      display: flex;
      flex-direction: column;
    }

    .modal__header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 24px;
      border-bottom: 1px solid var(--border);
      flex-shrink: 0;
    }

    .modal__title {
      font-size: 16px;
      font-weight: 600;
      color: var(--text);
    }

    .modal__close {
      width: 32px;
      height: 32px;
      border: none;
      background: transparent;
      border-radius: 4px;
      cursor: pointer;
      color: var(--text-secondary);
      font-size: 18px;
      line-height: 1;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .modal__close:hover {
      background: #f5f5f5;
      color: var(--text);
    }

    .modal__body {
      padding: 8px 24px 24px;
      overflow-y: auto;
      flex: 1;
    }

    .form-section {
      margin-top: 24px;
    }

    .form-section:first-child {
      margin-top: 0;
    }

    .form-section__title {
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 0;
      padding: 0 0 8px 12px;
      border-left: 3px solid var(--primary);
      border-bottom: 1px solid #f0f0f0;
    }

    .form-section__body {
      padding-left: 20px;
      margin-top: 16px;
      margin-left: 3px;
      border-left: 2px solid #e6f7ff;
    }

    .form-section__sub {
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      margin: 16px 0 8px;
    }

    .form-section__body > .form-section__sub:first-child {
      margin-top: 0;
    }

    .form-item--inline-label {
      display: flex;
      flex-direction: row;
      align-items: center;
      flex-wrap: nowrap;
      gap: 16px;
      margin-bottom: 16px;
    }

    .form-item--inline-label .form-label {
      margin-bottom: 0;
      flex-shrink: 0;
    }

    .form-item--inline-label .radio-row {
      flex-shrink: 0;
      min-height: auto;
    }

    @media (max-width: 480px) {
      .form-item--inline-label {
        flex-wrap: wrap;
      }
    }

    .form-section__hint {
      font-size: 13px;
      color: var(--text-secondary);
      margin: -8px 0 16px;
      line-height: 1.5;
    }

    .modal .form-field-caption {
      display: block;
      font-size: 12px;
      font-weight: 500;
      color: var(--text-secondary);
      line-height: 1.5;
      margin: 0 0 8px;
    }

    /* 新建课程：扣课时规则 + 定价标准 上下排列 */
    .modal__fee-stack {
      display: flex;
      flex-direction: column;
      gap: 20px;
      margin-bottom: 16px;
    }

    .modal__fee-block {
      display: flex;
      flex-direction: column;
      gap: 10px;
      align-items: flex-start;
      width: 100%;
    }

    .modal__fee-block .modal__fee-two-col__pricing-row {
      width: 100%;
    }

    .modal__fee-two-col__title {
      font-size: 13px;
      font-weight: 600;
      color: var(--text);
      line-height: 1.5;
      margin: 0;
      padding: 0;
    }

    .modal__fee-two-col__field-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px 16px;
    }

    .modal__fee-two-col__field-label {
      display: inline-block;
      font-size: 13px;
      font-weight: 400;
      color: var(--text-secondary);
      line-height: 22px;
      margin: 0;
      flex-shrink: 0;
    }

    .modal__fee-two-col__radios.radio-row {
      min-height: 0;
      margin: 0;
      gap: 8px 20px;
      align-items: center;
    }

    .modal__fee-two-col__radios .radio-item {
      font-size: 12px;
      line-height: 22px;
      color: var(--text);
    }

    .modal__fee-two-col__radios .radio-item input {
      width: 14px;
      height: 14px;
      flex-shrink: 0;
    }

    .modal__fee-two-col__pricing-row {
      display: flex;
      flex-wrap: wrap;
      gap: 16px 20px;
      align-items: flex-start;
    }

    .modal__fee-pricing-field {
      flex: 1;
      min-width: 140px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .modal__fee-pricing-field .input {
      width: 100%;
    }

    .modal .ncls-hours-input {
      width: 100px;
      flex-shrink: 0;
    }

    .form-label {
      display: block;
      font-size: 13px;
      color: var(--text-secondary);
      margin-bottom: 8px;
    }

    .form-label__req {
      color: #ff4d4f;
      margin-right: 4px;
      font-family: SimSun, serif;
    }

    .modal .form-grid-2 {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px 24px;
    }

    @media (max-width: 560px) {
      .modal .form-grid-2 {
        grid-template-columns: 1fr;
      }
    }

    .textarea {
      width: 100%;
      min-height: 100px;
      padding: 8px 11px;
      border: 1px solid #d9d9d9;
      border-radius: 6px;
      font-size: 14px;
      font-family: inherit;
      color: var(--text);
      resize: vertical;
      outline: none;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.15);
    }

    .textarea-wrap {
      position: relative;
    }

    .textarea-count {
      text-align: right;
      font-size: 12px;
      color: var(--text-secondary);
      margin-top: 6px;
    }

    .radio-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px 24px;
      min-height: 36px;
    }

    .radio-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      font-size: 14px;
      color: var(--text);
    }

    .radio-item input {
      width: 16px;
      height: 16px;
      accent-color: var(--primary);
      cursor: pointer;
    }

    .pricing-row {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .pricing-row .form-item-grow {
      flex: 1;
      min-width: 140px;
    }

    .modal__footer {
      padding: 12px 24px 16px;
      border-top: 1px solid var(--border);
      display: flex;
      justify-content: flex-end;
      gap: 12px;
      flex-shrink: 0;
    }


    /* Switch toggle */
    .switch {
      position: relative;
      display: inline-block;
      width: 48px;
      height: 24px;
      flex-shrink: 0;
    }

    .switch input {
      opacity: 0;
      width: 0;
      height: 0;
    }

    .switch__slider {
      position: absolute;
      cursor: pointer;
      inset: 0;
      background-color: #d9d9d9;
      border-radius: 24px;
      transition: 0.3s;
    }

    .switch__slider:before {
      position: absolute;
      content: "";
      height: 20px;
      width: 20px;
      left: 2px;
      bottom: 2px;
      background-color: white;
      border-radius: 50%;
      transition: 0.3s;
    }

    .switch input:checked + .switch__slider {
      background-color: var(--sidebar-active);
    }

    .switch input:checked + .switch__slider:before {
      transform: translateX(24px);
    }

    /* 机构配置 */
    .org-config-section {
      margin-bottom: 32px;
    }

    .org-config-section:last-child {
      margin-bottom: 0;
    }

    .org-config-section__title {
      font-size: 18px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 20px;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
    }

    .org-config-item {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 12px 0;
    }

    .org-config-item__label {
      width: 140px;
      flex-shrink: 0;
      font-size: 14px;
      color: var(--text);
    }

    .org-config-item__value {
      font-size: 14px;
      color: var(--text);
      min-width: 100px;
    }

    .org-config-item--switch {
      gap: 24px;
    }

    .org-config-item__tip {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--text-secondary);
    }

    .org-config-item__icon {
      width: 16px;
      height: 16px;
      background: #999;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 11px;
      color: #fff;
      flex-shrink: 0;
    }

    .org-config-item__icon:before {
      content: "i";
      font-style: normal;
    }