/* ============ Profile Context Menu ============ */
.profile-context-menu {
  position: fixed;
  z-index: 1000;
  min-width: 180px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: 6px 0;
  color: var(--text-primary);
  font-size: 14px;
  user-select: none;
}

.context-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  background: none;
  border: none;
}
.context-menu-item svg {
  flex-shrink: 0;
  color: var(--text-secondary);
}
.context-menu-item:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}
.context-menu-item.danger {
  color: var(--color-danger);
}
.context-menu-item.danger:hover {
  background: rgba(239,68,68,0.08);
  color: var(--color-danger);
}

.context-menu-divider {
  height: 1px;
  background: var(--border-color);
  margin: 4px 0;
}

.has-submenu {
  position: relative;
}
.submenu-arrow {
  margin-left: auto;
  opacity: 0.5;
}
.context-submenu {
  display: none;
  position: absolute;
  right: 100%;
  left: auto;
  top: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  min-width: 160px;
  padding: 6px 0;
  margin-right: 4px;
  z-index: 1001;
}
.has-submenu:hover .context-submenu {
  display: block;
}
.context-submenu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.context-submenu-item:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}
.context-submenu-item.active {
  background: rgba(99,102,241,0.08);
  color: var(--color-primary);
}
.submenu-color {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* ============ Batch Move Group Menu ============ */
#batchMoveGroupMenu {
  position: fixed;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  min-width: 180px;
  z-index: 1000;
  overflow: hidden;
}

#batchMoveGroupMenu .menu-header {
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-elevated);
}

#batchMoveGroupMenu .menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 13px;
  transition: background 0.15s;
  color: var(--text-primary);
}

#batchMoveGroupMenu .menu-item:hover {
  background: var(--bg-hover);
}

#batchMoveGroupMenu .group-color {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

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

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

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

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

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

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
}

.btn-icon.btn-sm {
  width: 32px;
  height: 32px;
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* ============ Cards ============ */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* 浅色模式下卡片加轻微阴影，与背景区分更明显（默认与 light 均视为浅色） */
:root:not([data-theme="dark"]) .card,
:root:not([data-theme="dark"]) .stat-card,
:root:not([data-theme="dark"]) .profile-card,
:root:not([data-theme="dark"]) .extension-card,
:root:not([data-theme="dark"]) .course-card,
:root:not([data-theme="dark"]) .quick-link {
  box-shadow: var(--shadow-sm);
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1.5px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
}

.card-body {
  padding: 24px;
}

.card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-elevated);
}

/* ============ Forms ============ */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2371717a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

/* ============ Search Box ============ */
.search-box {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  padding: 16px 24px 16px 56px;
  background: var(--bg-elevated);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: 16px;
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15), var(--shadow-lg);
}

.search-icon {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  padding: 10px 24px;
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-lg);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.search-btn:hover {
  filter: brightness(1.1);
}

/* ============ Quick Links ============ */
.quick-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.quick-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.quick-link:hover {
  background: var(--bg-elevated);
  border-color: var(--border-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.quick-link-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: var(--bg-elevated);
}

.quick-link-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.quick-link-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

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

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.stat-icon.primary { background: rgba(99, 102, 241, 0.15); color: var(--color-primary); }
.stat-icon.success { background: rgba(16, 185, 129, 0.15); color: var(--color-success); }
.stat-icon.warning { background: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
.stat-icon.danger { background: rgba(239, 68, 68, 0.15); color: var(--color-danger); }

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============ Table ============ */
.table-container {
  overflow-x: auto;
}

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

.table th,
.table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.table th {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  background: var(--bg-elevated);
}

.table tbody tr {
  transition: background var(--transition-fast);
}

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

/* ============ Modal ============ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

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

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 520px;
  max-height: min(90vh, calc(100vh - 48px));
  overflow: hidden;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
}

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

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

.modal-body {
  padding: 24px;
  overflow-y: auto;
  max-height: calc(90vh - 180px);
  flex: 1;
  min-height: 0;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-elevated);
}

/* ============ Toast ============ */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 100001; /* 高于 modal-overlay (10000) 确保 toast 始终可见 */
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  min-width: 280px;
  max-width: 400px;
  animation: slideIn 0.3s ease;
}

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

.toast.success { border-left: 4px solid var(--color-success); }
.toast.error { border-left: 4px solid var(--color-danger); }
.toast.warning { border-left: 4px solid var(--color-warning); }
.toast.info { border-left: 4px solid var(--color-info); }

.toast-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.toast-message {
  flex: 1;
  font-size: 14px;
}

.toast-close {
  color: var(--text-muted);
  padding: 4px;
}

/* ============ Duplicate Confirmation ============ */
.duplicate-confirm-modal { padding: 8px 0; }

.duplicate-info { 
  display: flex; 
  align-items: center; 
  gap: 12px; 
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.duplicate-icon { 
  width: 48px; 
  height: 48px; 
  background: rgba(99, 102, 241, 0.1); 
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.duplicate-icon svg { 
  width: 24px; 
  height: 24px; 
  color: var(--color-primary); 
}

.duplicate-desc { 
  margin: 0; 
  font-size: 14px; 
  color: var(--text-secondary);
  line-height: 1.5;
}

.duplicate-desc strong { 
  color: var(--text-primary); 
  font-weight: 600;
}

.duplicate-form {
  margin-bottom: 20px;
  padding: 16px;
  background: var(--bg-elevated);
  border-radius: 8px;
}

.duplicate-form .form-group {
  margin-bottom: 16px;
}

.duplicate-form .form-group:last-child {
  margin-bottom: 0;
}

.duplicate-form .form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.duplicate-form .form-label .required {
  color: var(--color-danger);
}

.duplicate-form .form-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
}

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

.duplicate-form .form-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.quantity-input {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 160px;
}

.quantity-btn {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.quantity-value {
  text-align: center;
}

.duplicate-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.duplicate-feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  font-size: 10px;
  flex-shrink: 0;
}

.feature-icon.success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.delete-confirm {
  text-align: center;
  padding: 20px 0;
}

.delete-icon {
  color: var(--color-danger);
  margin-bottom: 16px;
}

.delete-message {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.delete-warning {
  font-size: 14px;
  color: var(--text-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--radius-full);
}

.badge-primary { background: rgba(99, 102, 241, 0.15); color: var(--color-primary); }
.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--color-success); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: var(--color-warning); }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: var(--color-danger); }

/* ============ Empty State ============ */
.empty-state {
  text-align: center;
  padding: 60px 24px;
}

.empty-icon {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.empty-desc {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ============ Loading ============ */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-small {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}

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

/* ============ Profile Card ============ */
.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.profile-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: all var(--transition-fast);
}

.profile-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.profile-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.profile-avatar {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 600;
  color: white;
  flex-shrink: 0;
}

.profile-info {
  flex: 1;
  min-width: 0;
}

.profile-name {
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.profile-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 500;
}

.profile-status.running {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.profile-status.stopped {
  background: rgba(113, 113, 122, 0.15);
  color: var(--text-muted);
}

.profile-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.profile-detail {
  font-size: 13px;
}

.profile-detail-label {
  color: var(--text-muted);
  margin-bottom: 2px;
}

.profile-detail-value {
  font-weight: 500;
}

.profile-actions {
  display: flex;
  gap: 8px;
}

.profile-actions .btn {
  flex: 1;
}

/* ============ Extension Card ============ */
.extension-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.extension-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.extension-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 12px;
}

.extension-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.extension-icon img {
  width: 32px;
  height: 32px;
}

.extension-info {
  flex: 1;
}

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

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

.extension-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.extension-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.extension-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ============ Course Card ============ */
.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.course-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.course-cover {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-elevated);
}

.course-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: var(--gradient-primary);
  color: white;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-full);
}

.course-body {
  padding: 20px;
}

.course-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.course-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 16px;
}

.course-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ============ Tabs ============ */
.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.tab {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.tab:hover {
  color: var(--text-primary);
}

.tab.active {
  background: var(--gradient-primary);
  color: white;
}

/* ============ Auth Modal ============ */
.auth-modal {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 90%;
  max-width: 420px;
  padding: 32px;
  position: relative;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--transition-normal);
}

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

.auth-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

.auth-modal-close svg {
  width: 18px;
  height: 18px;
}

.auth-modal-header {
  text-align: center;
  margin-bottom: 24px;
}

.auth-logo {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-logo svg {
  width: 32px;
  height: 32px;
  color: white;
}

.auth-modal-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}

.auth-modal-subtitle {
  font-size: 14px;
  color: var(--text-muted);
}

.auth-tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
}

.auth-tab {
  flex: 1;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-align: center;
}

.auth-tab:hover {
  color: var(--text-primary);
}

.auth-tab.active {
  background: var(--gradient-primary);
  color: white;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.auth-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.auth-optional {
  font-weight: 400;
  color: var(--text-muted);
}

.auth-required {
  color: var(--color-danger);
  font-weight: 500;
}

.auth-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.auth-input-icon {
  position: absolute;
  left: 14px;
  font-size: 16px;
  pointer-events: none;
}

.auth-input {
  width: 100%;
  padding: 12px 14px 12px 44px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  transition: all var(--transition-fast);
}

.auth-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.auth-input::placeholder {
  color: var(--text-muted);
}

.auth-password-toggle {
  position: absolute;
  right: 12px;
  padding: 4px;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.auth-password-toggle:hover {
  color: var(--text-primary);
}

.auth-password-toggle svg {
  width: 18px;
  height: 18px;
}

/* SMS 验证码样式 */
.auth-sms-wrapper {
  display: flex;
  gap: 8px;
}

.auth-sms-input {
  flex: 1;
  padding-right: 14px !important;
}

.auth-sms-btn {
  flex-shrink: 0;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition-fast);
  min-width: 100px;
}

.auth-sms-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--color-primary);
}

.auth-sms-btn:disabled {
  color: var(--text-muted);
  cursor: not-allowed;
}

.auth-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

.auth-remember {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-secondary);
}

.auth-remember input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
}

.auth-forgot {
  color: var(--color-primary);
  transition: opacity var(--transition-fast);
}

.auth-forgot:hover {
  opacity: 0.8;
}

.auth-error {
  padding: 12px 14px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  color: var(--color-danger);
  font-size: 13px;
}

.auth-submit {
  width: 100%;
  padding: 14px 24px;
  background: var(--gradient-primary);
  color: white;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.auth-submit:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.auth-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.auth-submit-loading {
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-submit-loading .spinner {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: 500;
  margin-left: 4px;
}

.auth-footer a:hover {
  text-decoration: underline;
}

/* ============ User Dropdown ============ */
.user-menu {
  position: relative;
}

.user-btn {
  display: flex;
  align-items: center;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-color);
  transition: border-color var(--transition-fast);
}

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

.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 260px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-fast);
  z-index: 100;
}

.user-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
}

.user-dropdown-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
}

.user-dropdown-info {
  flex: 1;
  min-width: 0;
}

.user-dropdown-name {
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-dropdown-email {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-dropdown-divider {
  height: 1px;
  background: var(--border-color);
  margin: 0;
}

.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  width: 100%;
  text-align: left;
}

.user-dropdown-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.user-dropdown-icon {
  font-size: 16px;
  width: 20px;
  text-align: center;
}

.user-dropdown-logout {
  color: var(--color-danger);
}

.user-dropdown-logout:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}
/* ============ 公共浏览器安装选项 ============ */
.public-browser-option {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
  border: 2px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 16px;
  transition: all var(--transition-fast);
}

.public-browser-option:hover {
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.15);
}

.public-browser-option.installed {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.08) 0%, rgba(16, 185, 129, 0.08) 100%);
  border-color: rgba(34, 197, 94, 0.3);
}

.public-browser-option.installed:hover {
  border-color: rgba(34, 197, 94, 0.5);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.15);
}

.public-browser-header {
  margin-bottom: 8px;
}

.public-browser-checkbox {
  padding: 0 !important;
  background: transparent !important;
  border: none !important;
}

.public-browser-checkbox:hover {
  background: transparent !important;
}

.public-browser-checkbox .profile-checkbox-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.public-browser-icon {
  font-size: 20px;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.public-browser-hint {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-md);
  font-size: 12px;
  color: var(--text-secondary);
}

[data-theme="dark"] .public-browser-hint {
  background: rgba(0, 0, 0, 0.2);
}

.public-browser-hint .hint-icon {
  flex-shrink: 0;
  font-size: 14px;
}

.public-browser-hint .hint-text {
  line-height: 1.4;
}

/* 状态徽章 */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 500;
}

.status-badge.not-installed {
  background: rgba(107, 114, 128, 0.15);
  color: var(--text-muted);
}

.status-badge.installed {
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-success);
}

/* ============ 算术验证码弹窗 ============ */
.captcha-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  backdrop-filter: blur(4px);
}

.captcha-modal {
  position: relative;
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  width: 320px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  animation: modalSlideIn 0.2s ease-out;
}

.captcha-header {
  text-align: center;
  margin-bottom: 20px;
}

.captcha-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 4px 0;
}

.captcha-header p {
  font-size: 13px;
  color: var(--text-secondary);
  margin: 0;
}

.captcha-question {
  text-align: center;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  padding: 16px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.captcha-input {
  width: 100%;
  padding: 12px 16px;
  font-size: 18px;
  text-align: center;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.captcha-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.captcha-error {
  text-align: center;
  color: var(--color-danger);
  font-size: 13px;
  margin-top: 8px;
}

.captcha-buttons {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.captcha-btn {
  flex: 1;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.captcha-btn-cancel {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.captcha-btn-cancel:hover {
  background: var(--bg-hover);
}

.captcha-btn-confirm {
  background: var(--gradient-primary);
  color: white;
}

.captcha-btn-confirm:hover {
  filter: brightness(1.1);
}

/* ============ Registration Modal ============ */
.registration-modal {
  max-width: 420px;
  width: 90%;
}

.registration-content {
  text-align: center;
}

.registration-content .extension-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(99, 102, 241, 0.1));
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
}

.registration-content .extension-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  object-fit: contain;
  background: white;
  padding: 8px;
  box-shadow: var(--shadow-sm);
}

.registration-content .extension-details {
  text-align: left;
}

.registration-content .extension-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.registration-content .extension-version {
  font-size: 13px;
  color: var(--text-secondary);
}

.registration-message {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px;
  background: var(--bg-muted);
  border-radius: var(--radius-md);
  text-align: left;
}

.registration-message i {
  color: var(--color-primary);
  font-size: 16px;
  margin-top: 2px;
  flex-shrink: 0;
}

.registration-message span {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============ 公共浏览器选项 ============ */
.public-browser-option {
  margin-bottom: 12px;
  padding: 12px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(34, 197, 94, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: var(--radius-md);
}

.public-browser-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.public-browser-checkbox input[type="checkbox"] {
  margin-top: 2px;
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
}

.public-browser-checkbox .checkbox-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.public-browser-checkbox .profile-name {
  display: flex;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.public-browser-checkbox .profile-name svg {
  color: var(--color-primary);
}

.public-browser-checkbox .public-browser-hint {
  font-size: 12px;
  color: var(--text-secondary);
}

/* 安装选项区域 */
.ext-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.ext-options .ext-confirm-checkbox {
  margin: 0;
}

.auto-restart-option {
  padding: 8px 12px;
  background: var(--bg-muted);
  border-radius: var(--radius-sm);
}

.auto-restart-option span {
  color: var(--text-secondary);
  font-size: 13px;
}

/* ============ Payment Dialog ============ */
.payment-dialog {
  padding: 0;
}

.payment-product {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.1));
  border-radius: 12px;
  margin-bottom: 24px;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.payment-product-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.payment-product-icon svg {
  width: 28px;
  height: 28px;
}

.payment-product-info {
  flex: 1;
  min-width: 0;
}

.payment-product-name {
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.payment-product-type {
  font-size: 13px;
  color: var(--text-muted);
}

.payment-product-price {
  font-size: 24px;
  font-weight: 700;
  color: #6366f1;
  flex-shrink: 0;
}

.payment-methods {
  margin-bottom: 24px;
}

.payment-method-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.payment-method-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.payment-method-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  background: var(--bg-elevated);
}

.payment-method-item:hover {
  border-color: rgba(99, 102, 241, 0.5);
  background: rgba(99, 102, 241, 0.05);
}

.payment-method-item.active {
  border-color: #6366f1;
  background: rgba(99, 102, 241, 0.1);
}

.payment-method-item input {
  display: none;
}

.payment-method-item img {
  height: 24px;
  flex-shrink: 0;
}

.payment-method-item span {
  flex: 1;
  color: var(--text-primary);
  font-weight: 500;
}

.payment-method-check {
  color: #6366f1;
  display: none;
  flex-shrink: 0;
}

.payment-method-check svg {
  width: 20px;
  height: 20px;
}

.payment-method-item.active .payment-method-check {
  display: flex;
}

.payment-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  margin-bottom: 16px;
}

.payment-summary > span:first-child {
  font-size: 15px;
  color: var(--text-secondary);
}

.payment-total {
  font-size: 28px;
  font-weight: 700;
  color: #ef4444;
}

.payment-agreement {
  font-size: 13px;
  color: var(--text-muted);
}

.payment-agreement label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.payment-agreement input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #6366f1;
  cursor: pointer;
}

.payment-agreement a {
  color: #6366f1;
  text-decoration: none;
}

.payment-agreement a:hover {
  text-decoration: underline;
}
/* ============ 客服按钮动画 ============ */
.customer-service-btn {
  position: relative;
  margin-right: 8px;
  animation: customerPulse 2s ease-in-out infinite;
}

.customer-service-btn:hover {
  animation: none;
  transform: scale(1.1);
}

.customer-service-btn svg {
  color: var(--color-primary);
}

/* 小红点提示 */
.customer-service-btn .service-dot {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 8px;
  height: 8px;
  background: #ef4444;
  border-radius: 50%;
  animation: dotPulse 1.5s ease-in-out infinite;
}

/* 呼吸脉冲动画 */
@keyframes customerPulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* 小红点闪烁动画 */
@keyframes dotPulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(1.2);
  }
}

/* ============ AI 智能对话组件 ============ */
#ai-chat-widget {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 9999;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* 悬浮按钮 */
.ai-chat-fab {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}
.ai-chat-fab:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 32px rgba(99, 102, 241, 0.5);
}
.ai-chat-fab:active {
  transform: scale(0.95);
}
.ai-chat-fab svg {
  transition: transform 0.3s;
}
#ai-chat-widget.open .ai-chat-fab svg {
  transform: rotate(180deg);
}

.fab-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: #ef4444;
  color: white;
  border-radius: 9px;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: badgePulse 2s infinite;
}
@keyframes badgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* 对话面板 */
.ai-chat-panel {
  position: absolute;
  right: 0;
  bottom: 72px;
  width: 380px;
  max-height: 70vh;
  background: var(--bg-surface, #fff);
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-color, #e5e7eb);
  display: none;
  flex-direction: column;
  overflow: hidden;
  animation: panelSlideIn 0.25s ease;
}
#ai-chat-widget.open .ai-chat-panel {
  display: flex;
}
@keyframes panelSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 面板头部 */
.ai-chat-header {
  padding: 14px 16px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.ai-chat-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
}
.ai-chat-actions {
  display: flex;
  gap: 4px;
}
.ai-chat-action-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.ai-chat-action-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* 消息列表 */
.ai-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  background: var(--bg-body, #f8fafc);
  min-height: 300px;
  max-height: 400px;
}

/* 欢迎页 */
.ai-chat-welcome {
  text-align: center;
  padding: 30px 20px;
}
.welcome-icon {
  font-size: 48px;
  margin-bottom: 16px;
}
.welcome-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary, #1f2937);
  margin-bottom: 8px;
}
.welcome-desc {
  font-size: 14px;
  color: var(--text-secondary, #6b7280);
  line-height: 1.6;
  margin-bottom: 20px;
}
.welcome-tips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.welcome-tip {
  padding: 8px 14px;
  background: var(--bg-surface, #fff);
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 20px;
  font-size: 13px;
  color: var(--text-primary, #1f2937);
  cursor: pointer;
  transition: all 0.2s;
}
.welcome-tip:hover {
  border-color: var(--color-primary, #6366f1);
  color: var(--color-primary, #6366f1);
  background: rgba(99, 102, 241, 0.05);
}

/* 消息气泡 */
.ai-chat-message {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.ai-chat-message.user {
  flex-direction: row-reverse;
}
.msg-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-surface, #fff);
  border: 1px solid var(--border-color, #e5e7eb);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.ai-chat-message.user .msg-avatar {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
}
.msg-content {
  max-width: 75%;
}
.msg-images {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}
.msg-images img {
  max-width: 120px;
  max-height: 120px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--border-color, #e5e7eb);
}
.msg-text {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
}
.ai-chat-message.user .msg-text {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  border-bottom-right-radius: 4px;
}
.ai-chat-message.assistant .msg-text {
  background: var(--bg-surface, #fff);
  color: var(--text-primary, #1f2937);
  border: 1px solid var(--border-color, #e5e7eb);
  border-bottom-left-radius: 4px;
}
.msg-text code {
  background: rgba(0, 0, 0, 0.06);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 13px;
}
.msg-text pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 8px 0;
}
.msg-text pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* 打字动画 */
.msg-text.typing {
  display: flex;
  gap: 4px;
  padding: 14px 18px;
}
.msg-text.typing .dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary, #6366f1);
  border-radius: 50%;
  animation: typingDot 1.4s infinite ease-in-out;
}
.msg-text.typing .dot:nth-child(2) { animation-delay: 0.2s; }
.msg-text.typing .dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingDot {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

/* 附件区域 */
.ai-chat-attachments {
  display: none;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg-body, #f8fafc);
  border-top: 1px solid var(--border-color, #e5e7eb);
}
.ai-chat-attachment {
  position: relative;
  width: 60px;
  height: 60px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color, #e5e7eb);
}
.ai-chat-attachment img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.attachment-remove {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 20px;
  height: 20px;
  border: none;
  background: #ef4444;
  color: white;
  border-radius: 50%;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 输入区域 */
.ai-chat-input-area {
  padding: 12px;
  background: var(--bg-surface, #fff);
  border-top: 1px solid var(--border-color, #e5e7eb);
}
.ai-chat-input-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}
.ai-chat-input-row textarea {
  flex: 1;
  min-height: 40px;
  max-height: 120px;
  padding: 10px 14px;
  border: 1px solid var(--border-color, #e5e7eb);
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  outline: none;
  background: var(--bg-body, #f8fafc);
  color: var(--text-primary, #1f2937);
  transition: border-color 0.2s;
}
.ai-chat-input-row textarea:focus {
  border-color: var(--color-primary, #6366f1);
}
.ai-chat-input-row textarea::placeholder {
  color: var(--text-muted, #9ca3af);
}
.ai-chat-upload-btn,
.ai-chat-send-btn {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.ai-chat-upload-btn {
  background: var(--bg-body, #f1f5f9);
  color: var(--text-secondary, #64748b);
}
.ai-chat-upload-btn:hover {
  background: var(--bg-hover, #e2e8f0);
  color: var(--color-primary, #6366f1);
}
.ai-chat-send-btn {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
}
.ai-chat-send-btn:hover {
  filter: brightness(1.1);
}
.ai-chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ai-chat-hint {
  display: none;
  font-size: 12px;
  color: var(--text-muted, #9ca3af);
  margin-top: 6px;
  text-align: center;
}

/* 响应式 */
@media (max-width: 480px) {
  #ai-chat-widget {
    right: 16px;
    bottom: 16px;
  }
  .ai-chat-panel {
    width: calc(100vw - 32px);
    max-height: 80vh;
    right: 0;
  }
  .ai-chat-fab {
    width: 50px;
    height: 50px;
  }
}

/* ========== 待办事项样式 ========== */
.todo-btn-wrapper {
  position: relative;
}

#todoBtn {
  position: relative;
}

.todo-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  color: white;
  font-size: 11px;
  font-weight: 600;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(239, 68, 68, 0.4);
  animation: todoBadgePulse 2s ease-in-out infinite;
}

@keyframes todoBadgePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* 待办面板 */
.todo-panel {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 420px;
  max-height: 560px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 8px 24px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px) scale(0.96);
  transition: all 0.2s ease;
}

.todo-panel.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.todo-panel-header {
  padding: 16px 20px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.todo-panel-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
}

.todo-panel-title svg {
  width: 22px;
  height: 22px;
}

.todo-panel-actions {
  display: flex;
  gap: 8px;
}

.todo-panel-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.todo-panel-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.05);
}

.todo-panel-btn svg {
  width: 18px;
  height: 18px;
}

/* 快速添加区域 */
.todo-quick-add {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  gap: 10px;
}

.todo-quick-input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.2s;
}

.todo-quick-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.todo-quick-input::placeholder {
  color: var(--text-muted);
}

.todo-add-btn {
  padding: 10px 16px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: white;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}

.todo-add-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.todo-add-btn svg {
  width: 16px;
  height: 16px;
}

/* 待办列表 */
.todo-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.todo-list::-webkit-scrollbar {
  width: 6px;
}

.todo-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

.todo-group {
  margin-bottom: 8px;
}

.todo-group-title {
  padding: 8px 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 待办项 */
.todo-item {
  display: flex;
  align-items: flex-start;
  padding: 12px 20px;
  gap: 12px;
  cursor: pointer;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.todo-item:hover {
  background: var(--bg-hover);
}

.todo-item.completed {
  opacity: 0.6;
}

.todo-item.completed .todo-title {
  text-decoration: line-through;
  color: var(--text-muted);
}

/* 优先级色带 */
.todo-item.priority-1 {
  border-left-color: #f59e0b;
}

.todo-item.priority-2 {
  border-left-color: #ef4444;
}

/* 复选框 */
.todo-checkbox {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 2px;
}

.todo-checkbox:hover {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
}

.todo-item.completed .todo-checkbox {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-color: transparent;
}

.todo-checkbox svg {
  width: 12px;
  height: 12px;
  color: white;
  opacity: 0;
}

.todo-item.completed .todo-checkbox svg {
  opacity: 1;
}

/* 待办内容 */
.todo-content {
  flex: 1;
  min-width: 0;
}

.todo-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
  word-break: break-word;
}

.todo-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.todo-time {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-muted);
}

.todo-time svg {
  width: 12px;
  height: 12px;
}

.todo-time.overdue {
  color: #ef4444;
}

.todo-time.soon {
  color: #f59e0b;
}

.todo-repeat-badge {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 2px 8px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
  font-size: 11px;
  border-radius: 10px;
}

.todo-repeat-badge svg {
  width: 10px;
  height: 10px;
}

/* 待办操作 */
.todo-actions {
  display: flex;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.15s;
}

.todo-item:hover .todo-actions {
  opacity: 1;
}

.todo-action-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.todo-action-btn:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.todo-action-btn.delete:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.todo-action-btn svg {
  width: 14px;
  height: 14px;
}

/* 空状态 */
.todo-empty {
  padding: 48px 20px;
  text-align: center;
  color: var(--text-muted);
}

.todo-empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: var(--bg-hover);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.todo-empty-icon svg {
  width: 32px;
  height: 32px;
  color: var(--text-muted);
  opacity: 0.6;
}

.todo-empty-text {
  font-size: 14px;
  margin-bottom: 4px;
}

.todo-empty-hint {
  font-size: 12px;
  opacity: 0.7;
}

/* 底部统计 */
.todo-panel-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
}

.todo-stats {
  display: flex;
  gap: 16px;
}

.todo-stat {
  display: flex;
  align-items: center;
  gap: 4px;
}

.todo-stat-num {
  font-weight: 600;
  color: var(--text-primary);
}

.todo-clear-btn {
  padding: 6px 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.15s;
}

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

/* 编辑表单弹窗 */
.todo-form-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.2s;
}

.todo-form-overlay.show {
  opacity: 1;
  visibility: visible;
}

.todo-form-modal {
  width: 480px;
  max-width: 90%;
  max-height: 80vh;
  background: var(--bg-surface);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.2s;
}

.todo-form-overlay.show .todo-form-modal {
  transform: scale(1) translateY(0);
}

.todo-form-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.todo-form-header h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

.todo-form-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.todo-form-close:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.todo-form-body {
  padding: 24px;
  overflow-y: auto;
  max-height: calc(80vh - 160px);
}

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

.todo-form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.todo-form-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-base);
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.2s;
}

.todo-form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.todo-form-textarea {
  min-height: 80px;
  resize: vertical;
}

/* 优先级选择 */
.todo-priority-select {
  display: flex;
  gap: 10px;
}

.todo-priority-option {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-base);
  cursor: pointer;
  text-align: center;
  font-size: 13px;
  transition: all 0.15s;
}

.todo-priority-option:hover {
  border-color: var(--color-primary);
}

.todo-priority-option.active {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
}

.todo-priority-option.priority-1.active {
  border-color: #f59e0b;
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
}

.todo-priority-option.priority-2.active {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

/* 快速时间选择 */
.todo-quick-time {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.todo-quick-time-btn {
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  background: var(--bg-base);
  color: var(--text-secondary);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.todo-quick-time-btn:hover {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.08);
  color: var(--color-primary);
}

.todo-quick-time-btn:active {
  transform: scale(0.96);
}

/* 日期时间选择 */
.todo-datetime-row {
  display: flex;
  gap: 10px;
}

.todo-datetime-row .todo-form-input {
  flex: 1;
}

/* 重复设置 */
.todo-repeat-select {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.todo-repeat-option {
  padding: 8px 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-base);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}

.todo-repeat-option:hover {
  border-color: var(--color-primary);
}

.todo-repeat-option.active {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
}

/* 自定义周几选择 */
.todo-weekdays {
  display: flex;
  gap: 6px;
  margin-top: 12px;
}

.todo-weekday {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: 50%;
  background: var(--bg-base);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.15s;
}

.todo-weekday:hover {
  border-color: var(--color-primary);
}

.todo-weekday.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.todo-form-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.todo-form-btn {
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.todo-form-btn-cancel {
  background: var(--bg-hover);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.todo-form-btn-cancel:hover {
  background: var(--bg-active);
  color: var(--text-primary);
}

.todo-form-btn-save {
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  border: none;
  color: white;
}

.todo-form-btn-save:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

/* 响应式 */
@media (max-width: 480px) {
  .todo-panel {
    width: calc(100vw - 32px);
    right: -100px;
  }
  
  .todo-quick-add {
    flex-direction: column;
  }
  
  .todo-form-modal {
    width: 100%;
    max-width: 100%;
    border-radius: 16px 16px 0 0;
    max-height: 90vh;
  }
}