.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  padding: 0 var(--cls-space-base);
  font-size: var(--cls-font-size-base);
  font-weight: var(--cls-font-weight-medium);
  border-radius: var(--cls-radius-btn);
  transition: all var(--cls-transition);
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1;
  gap: var(--cls-space-xs);
  white-space: nowrap;
  font-family: var(--cls-font-family);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--cls-color-primary);
  color: var(--cls-color-text-white);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--cls-color-primary-dark);
  box-shadow: var(--cls-shadow-sm);
}

.btn-secondary {
  background-color: var(--cls-color-bg-white);
  color: var(--cls-color-primary);
  border-color: var(--cls-color-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--cls-color-primary-bg);
}

.btn-danger {
  background-color: var(--cls-color-error);
  color: var(--cls-color-text-white);
}

.btn-danger:hover:not(:disabled) {
  background-color: var(--cls-color-error-light);
  box-shadow: var(--cls-shadow-sm);
}

.btn-ghost {
  background-color: transparent;
  color: var(--cls-color-text-light);
  border-color: var(--cls-color-border);
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--cls-color-bg);
  color: var(--cls-color-text);
  border-color: var(--cls-color-secondary-light);
}

.btn-text {
  background-color: transparent;
  color: var(--cls-color-primary);
  border: none;
  padding: 0 var(--cls-space-sm);
  height: auto;
}

.btn-text:hover:not(:disabled) {
  background-color: var(--cls-color-primary-bg);
}

.btn-sm {
  height: 28px;
  padding: 0 var(--cls-space-sm);
  font-size: var(--cls-font-size-xs);
}

.btn-lg {
  height: 44px;
  padding: 0 var(--cls-space-lg);
  font-size: var(--cls-font-size-md);
}

.form-group {
  margin-bottom: var(--cls-space-base);
}

.form-label {
  display: block;
  margin-bottom: var(--cls-space-xs);
  font-size: var(--cls-font-size-base);
  font-weight: var(--cls-font-weight-medium);
  color: var(--cls-color-text);
}

.form-input {
  width: 100%;
  height: 36px;
  padding: 0 var(--cls-space-sm);
  border: 1px solid var(--cls-color-border);
  border-radius: var(--cls-radius-btn);
  font-size: var(--cls-font-size-base);
  transition: border-color var(--cls-transition), box-shadow var(--cls-transition);
  background-color: var(--cls-color-bg-white);
  font-family: var(--cls-font-family);
  line-height: 36px;
}

.form-input:focus {
  border-color: var(--cls-color-primary);
  box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.15);
  outline: none;
}

.form-input.error {
  border-color: var(--cls-color-error);
  border-width: 2px;
}

.form-error {
  color: var(--cls-color-error);
  font-size: var(--cls-font-size-xs);
  margin-top: var(--cls-space-xs);
}

.form-select {
  width: 100%;
  height: 36px;
  padding: 0 var(--cls-space-sm);
  border: 1px solid var(--cls-color-border);
  border-radius: var(--cls-radius-btn);
  font-size: var(--cls-font-size-base);
  background-color: var(--cls-color-bg-white);
  cursor: pointer;
  font-family: var(--cls-font-family);
}

.form-select:focus {
  border-color: var(--cls-color-primary);
  border-width: 2px;
  box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.15);
  outline: none;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--cls-transition), visibility var(--cls-transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background-color: var(--cls-color-bg-white);
  border-radius: var(--cls-radius-lg);
  box-shadow: var(--cls-shadow-lg);
  max-width: 500px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  transform: translateY(20px);
  opacity: 0;
  transition: transform var(--cls-transition), opacity var(--cls-transition);
}

.modal-overlay.active .modal {
  transform: translateY(0);
  opacity: 1;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 var(--cls-space-lg);
  border-bottom: 1px solid var(--cls-color-divider);
}

.modal-title {
  font-size: var(--cls-font-size-md);
  font-weight: var(--cls-font-weight-bold);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--cls-radius-sm);
  color: var(--cls-color-text-light);
  font-size: 18px;
  transition: all var(--cls-transition-fast);
}

.modal-close:hover {
  background-color: var(--cls-color-bg);
  color: var(--cls-color-text);
}

.modal-body {
  padding: var(--cls-space-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--cls-space-sm);
  height: 56px;
  padding: 0 var(--cls-space-lg);
  border-top: 1px solid var(--cls-color-divider);
  align-items: center;
}

.confirm-dialog {
  background-color: var(--cls-color-bg-white);
  border-radius: var(--cls-radius-lg);
  box-shadow: var(--cls-shadow-lg);
  max-width: 400px;
  width: 90%;
  padding: var(--cls-space-xl) var(--cls-space-lg) var(--cls-space-lg);
  text-align: center;
  animation: confirmDialogIn var(--cls-transition-slow) ease;
}

.confirm-dialog-icon {
  font-size: 40px;
  margin-bottom: var(--cls-space-base);
  line-height: 1;
}

.confirm-dialog-title {
  font-size: var(--cls-font-size-md);
  font-weight: var(--cls-font-weight-bold);
  color: var(--cls-color-text);
  margin-bottom: var(--cls-space-sm);
}

.confirm-dialog-message {
  font-size: var(--cls-font-size-base);
  color: var(--cls-color-text-light);
  line-height: var(--cls-line-height);
  margin-bottom: var(--cls-space-lg);
  white-space: pre-line;
}

.confirm-dialog-actions {
  display: flex;
  justify-content: center;
  gap: var(--cls-space-sm);
}

.confirm-dialog-actions .btn {
  min-width: 80px;
}

@keyframes confirmDialogIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

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

.table th,
.table td {
  padding: var(--cls-space-md) var(--cls-space-base);
  text-align: left;
  height: 48px;
  border-bottom: 1px solid var(--cls-color-border-light);
}

.table th {
  font-weight: var(--cls-font-weight-medium);
  color: var(--cls-color-text);
  font-size: var(--cls-font-size-xs);
  background-color: var(--cls-color-bg-light);
}

.table tr:hover td {
  background-color: var(--cls-color-primary-bg);
}

.card {
  background-color: var(--cls-color-bg-card);
  border-radius: var(--cls-radius-md);
  box-shadow: var(--cls-shadow-sm);
  border: 1px solid var(--cls-color-border-light);
  transition: box-shadow var(--cls-transition);
}

.card:hover {
  box-shadow: var(--cls-shadow-md);
}

.card-header {
  padding: var(--cls-space-base) var(--cls-space-lg);
  border-bottom: 1px solid var(--cls-color-divider);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-body {
  padding: var(--cls-space-lg);
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--cls-space-xl);
  color: var(--cls-color-text-light);
}

.loading-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--cls-color-border);
  border-top-color: var(--cls-color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-right: var(--cls-space-sm);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.toast-container {
  position: fixed;
  top: var(--cls-space-base);
  right: var(--cls-space-base);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--cls-space-sm);
}

.toast {
  padding: var(--cls-space-md) var(--cls-space-base);
  border-radius: var(--cls-radius-md);
  background-color: var(--cls-color-bg-white);
  box-shadow: var(--cls-shadow-lg);
  border-left: 4px solid var(--cls-color-info);
  min-width: 280px;
  max-width: 400px;
  animation: toastSlideIn var(--cls-transition-slow) ease;
}

.toast.success {
  border-left-color: var(--cls-color-success);
}

.toast.warning {
  border-left-color: var(--cls-color-warning);
}

.toast.error {
  border-left-color: var(--cls-color-error);
}

.toast-message {
  font-size: var(--cls-font-size-base);
  color: var(--cls-color-text);
}

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

/* ============ 居中大尺寸 Toast ============ */
.big-toast-overlay {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  animation: fadeIn 0.2s ease;
  transition: opacity 0.3s ease;
}

.big-toast {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 40px 48px;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
  min-width: 280px;
  max-width: 440px;
  animation: scaleIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.big-toast-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 700;
  color: #fff;
}

.big-toast.success .big-toast-icon { background: #4caf50; }
.big-toast.warning .big-toast-icon { background: #ff9800; }
.big-toast.error .big-toast-icon { background: #f44336; }
.big-toast.info .big-toast-icon { background: #2196f3; }

.big-toast-message {
  font-size: 20px;
  font-weight: 600;
  color: #333;
  text-align: center;
  line-height: 1.5;
}

@keyframes scaleIn {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--cls-space-xxl);
  color: var(--cls-color-text-light);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--cls-space-base);
  opacity: 0.6;
}

.empty-state-text {
  font-size: var(--cls-font-size-md);
  margin-bottom: var(--cls-space-sm);
  color: var(--cls-color-text);
  font-weight: var(--cls-font-weight-medium);
}

.empty-state-desc {
  font-size: var(--cls-font-size-base);
  color: var(--cls-color-text-light);
}

.points-rules-section {
  margin-bottom: var(--cls-space-base);
  max-height: 240px;
  overflow-y: auto;
}

.points-rules-group {
  margin-bottom: var(--cls-space-sm);
}

.points-rules-group-label {
  font-size: var(--cls-font-size-xs);
  font-weight: var(--cls-font-weight-medium);
  margin-bottom: var(--cls-space-xs);
  padding-left: 2px;
}

.points-rules-group-label.plus {
  color: var(--cls-color-success);
}

.points-rules-group-label.minus {
  color: var(--cls-color-error);
}

.points-rules-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--cls-space-xs);
}

.points-rule-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px;
  border-radius: var(--cls-radius-full);
  border: 1.5px solid;
  font-size: var(--cls-font-size-xs);
  cursor: pointer;
  transition: all var(--cls-transition-fast);
  font-family: var(--cls-font-family);
  background-color: var(--cls-color-bg-white);
  min-height: 36px;
}

.points-rule-tag.plus {
  border-color: var(--cls-color-success);
  color: var(--cls-color-success);
  background-color: var(--cls-color-success-bg);
}

.points-rule-tag.plus:hover {
  background-color: var(--cls-color-success);
  color: var(--cls-color-text-white);
}

.points-rule-tag.minus {
  border-color: var(--cls-color-error);
  color: var(--cls-color-error);
  background-color: var(--cls-color-error-bg);
}

.points-rule-tag.minus:hover {
  background-color: var(--cls-color-error);
  color: var(--cls-color-text-white);
}

.points-rule-tag-icon {
  font-size: 14px;
  line-height: 1;
}

.points-rule-tag-name {
  font-weight: var(--cls-font-weight-medium);
  white-space: nowrap;
}

.points-rule-tag-value {
  font-weight: var(--cls-font-weight-bold);
  font-size: 11px;
  padding: 1px 4px;
  border-radius: var(--cls-radius-sm);
}

.points-rule-tag-value.plus {
  background-color: rgba(76, 175, 80, 0.15);
}

.points-rule-tag.minus .points-rule-tag-value {
  background-color: rgba(244, 67, 54, 0.15);
}

@media (max-width: 1024px) {
  .points-rule-tag {
    padding: 5px 8px;
    min-height: 32px;
    font-size: 12px;
  }

  .points-rules-section {
    max-height: 200px;
  }
}

.mobile-menu-btn {
  display: none;
  position: fixed;
  top: var(--cls-space-sm);
  left: var(--cls-space-sm);
  z-index: 110;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background-color: var(--cls-color-bg-white);
  border-radius: var(--cls-radius-md);
  box-shadow: var(--cls-shadow-md);
  color: var(--cls-color-text);
  font-size: 20px;
  transition: background-color var(--cls-transition-fast);
}

.mobile-menu-btn:hover {
  background-color: var(--cls-color-bg);
}

.mobile-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 105;
}

.mobile-overlay.active {
  display: block;
}

/* ============ 移动端 Modal 全屏适配 ============ */
@media (max-width: 767px) {
  .modal {
    max-width: 95%;
    width: 95%;
  }

  .modal-close {
    width: 44px;
    height: 44px;
    font-size: 22px;
  }

  .modal-body {
    padding: var(--cls-space-base);
  }

  .modal-header {
    padding: 0 var(--cls-space-base);
  }

  .modal-footer {
    padding: 0 var(--cls-space-base);
    height: 52px;
  }
}

@media (max-width: 480px) {
  .modal-overlay {
    align-items: flex-end;
  }

  .modal-overlay.active .modal {
    transform: translateY(0);
  }

  .modal {
    width: 100%;
    max-width: 100%;
    max-height: 90vh;
    border-radius: var(--cls-radius-lg) var(--cls-radius-lg) 0 0;
    transform: translateY(100%);
    transition: transform var(--cls-transition-slow), opacity var(--cls-transition-slow);
    display: flex;
    flex-direction: column;
  }

  .modal-body {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .modal-footer {
    position: sticky;
    bottom: 0;
    background: var(--cls-color-bg-white);
    padding-bottom: var(--cls-safe-area-bottom);
    border-top: 1px solid var(--cls-color-divider);
  }

  .modal-header {
    flex-shrink: 0;
  }
}

/* ============ 移动端 Drawer 适配 ============ */
@media (max-width: 767px) {
  .drawer {
    width: 100% !important;
  }

  .drawer-handle {
    display: block;
  }
}

/* ============ 移动端 Toast 适配 ============ */
@media (max-width: 767px) {
  .toast-container {
    top: auto;
    bottom: calc(var(--cls-bottom-nav-height) + var(--cls-safe-area-bottom) + var(--cls-space-sm));
    right: var(--cls-space-sm);
    left: var(--cls-space-sm);
  }

  .toast {
    min-width: auto;
    max-width: 100%;
    border-radius: 20px;
    border-left: none;
    text-align: center;
    animation: toastSlideUp var(--cls-transition-slow) ease;
  }
}

@keyframes toastSlideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ============ 底部弹出面板 (Bottom Sheet) ============ */
.bottom-sheet-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--cls-transition), visibility var(--cls-transition);
}

.bottom-sheet-overlay.active {
  opacity: 1;
  visibility: visible;
}

.bottom-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--cls-color-bg-white);
  border-radius: var(--cls-radius-lg) var(--cls-radius-lg) 0 0;
  z-index: 1001;
  transform: translateY(100%);
  transition: transform var(--cls-transition-slow);
  max-height: 80vh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--cls-safe-area-bottom);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.15);
}

.bottom-sheet.open {
  transform: translateY(0);
}

.bottom-sheet-handle {
  width: 36px;
  height: 4px;
  background: var(--cls-color-border);
  border-radius: 2px;
  margin: 8px auto;
  flex-shrink: 0;
}

.bottom-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--cls-space-base) var(--cls-space-sm);
  border-bottom: 1px solid var(--cls-color-divider);
}

.bottom-sheet-title {
  font-size: var(--cls-font-size-md);
  font-weight: var(--cls-font-weight-bold);
}

.bottom-sheet-body {
  padding: var(--cls-space-base);
}

/* ============ 移动端按钮触摸目标优化 ============ */
@media (max-width: 767px) {
  .btn {
    min-height: 44px;
    min-width: 44px;
  }

  .btn-sm {
    min-height: 36px;
    min-width: 36px;
  }

  .form-input,
  .form-select {
    height: 44px;
    font-size: var(--cls-font-size-md);
  }
}

/* ============ 移动端表格横向滚动 ============ */
@media (max-width: 767px) {
  .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 calc(-1 * var(--cls-space-base));
    padding: 0 var(--cls-space-base);
  }

  .table {
    min-width: 600px;
  }
}

/* ============ 移动端页面通用布局 ============ */
@media (max-width: 767px) {
  .page-header {
    flex-wrap: wrap;
    gap: var(--cls-space-sm);
  }

  .page-header-actions {
    width: 100%;
    display: flex;
    gap: var(--cls-space-sm);
  }
}

/* ===== 家长权限配置开关 ===== */
.parent-perm-container {
  padding: 20px;
}

.perm-loading {
  text-align: center;
  color: var(--cls-text-secondary);
  padding: 20px;
}

.perm-toggle-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.perm-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--cls-bg-white);
  border: 1px solid var(--cls-border);
  border-radius: var(--cls-radius);
}

.perm-toggle-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.perm-toggle-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--cls-text);
}

.perm-toggle-desc {
  font-size: 12px;
  color: var(--cls-text-secondary);
}

/* Switch 开关 */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

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

.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: #ccc;
  border-radius: 24px;
  transition: 0.3s;
}

.switch-slider:before {
  position: absolute;
  content: '';
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.3s;
}

.switch-input:checked + .switch-slider {
  background: var(--cls-primary);
}

.switch-input:checked + .switch-slider:before {
  transform: translateX(20px);
}