:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --text: #1f2328;
  --muted: #6b7280;
  --border: #e5e7eb;
  --panel: #f8fafc;
  --button: #2563eb;
  --button-text: #ffffff;
  --code-bg: #f6f8fa;
}
[data-theme="dark"] {
  --bg: #0b0f19;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #1f2937;
  --panel: #0f172a;
  --button: #3b82f6;
  --button-text: #ffffff;
  --code-bg: #111827;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}
.app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  gap: 12px;
  padding: 16px;
}
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.toolbar button {
  border: 1px solid transparent;
  background: var(--button);
  color: var(--button-text);
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: transform 0.08s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.2);
}
.toolbar button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.2);
}
.toolbar button:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.2);
}
.toolbar button:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.6);
  outline-offset: 2px;
}
.toolbar button.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}
.toolbar button.secondary:hover {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: none;
}
.toolbar button.active {
  background: #10b981;
  border-color: #10b981;
  color: #ffffff;
}
.toolbar button.active:hover {
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.25);
}
.toolbar button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}
.toolbar .status {
  margin-left: auto;
  color: var(--muted);
  font-size: 13px;
}
.toolbar .divider {
  width: 1px;
  height: 24px;
  background: var(--border);
  margin: 0 4px;
}
.toolbar .btn-group {
  position: relative;
  display: inline-block;
}
.toolbar .btn-group-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  margin-top: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  z-index: 100;
  min-width: 120px;
  overflow: hidden;
}
.toolbar .btn-group.open .btn-group-content {
  display: block;
}
.toolbar .btn-group-content button {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
  color: var(--text);
  padding: 10px 14px;
  cursor: pointer;
}
.toolbar .btn-group-content button:hover {
  background: rgba(37, 99, 235, 0.08);
}
.edit-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.edit-toolbar button {
  padding: 6px 10px;
  font-size: 13px;
  border-radius: 4px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
}
.edit-toolbar button:hover {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.4);
}
.stats-bar {
  display: flex;
  gap: 16px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--muted);
  background: var(--panel);
  border-top: 1px solid var(--border);
}
.stats-bar span {
  white-space: nowrap;
}
.panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  flex: 1;
}
.panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  padding: 12px;
  min-height: 0;
}
.panel h3 {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  font-weight: 600;
}
.input-wrapper {
  position: relative;
  flex: 1;
  display: flex;
}
textarea {
  width: 100%;
  flex: 1;
  resize: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  background: var(--bg);
  color: var(--text);
  font-family: "Fira Code", "JetBrains Mono", "Source Code Pro", monospace;
  font-size: 13px;
  line-height: 1.6;
}
.preview {
  width: 100%;
  flex: 1;
  overflow: auto;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
}
.preview-content {
  font-size: 15px;
  line-height: 1.7;
}
.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4 {
  margin-top: 1.2em;
}
.preview-content code {
  font-family: "Fira Code", "JetBrains Mono", "Source Code Pro", monospace;
  background: var(--code-bg);
  padding: 2px 4px;
  border-radius: 4px;
}
.preview-content pre {
  background: var(--code-bg);
  padding: 12px;
  border-radius: 6px;
  overflow: auto;
}
.preview-content pre code {
  padding: 0;
  background: transparent;
}
.preview-content table {
  border-collapse: collapse;
}
.preview-content table th,
.preview-content table td {
  border: 1px solid var(--border);
  padding: 6px 8px;
}
.preview-content blockquote {
  margin: 0;
  padding-left: 12px;
  border-left: 4px solid var(--border);
  color: var(--muted);
}
.hljs {
  color: var(--text);
  background: var(--code-bg);
}
.hljs-comment,
.hljs-quote {
  color: #6b7280;
}
.hljs-keyword,
.hljs-selector-tag,
.hljs-subst {
  color: #d97706;
}
.hljs-number,
.hljs-literal,
.hljs-variable,
.hljs-template-variable,
.hljs-tag .hljs-attr {
  color: #2563eb;
}
.hljs-string,
.hljs-doctag {
  color: #16a34a;
}
.hljs-title,
.hljs-section,
.hljs-selector-id {
  color: #7c3aed;
}
[data-theme="dark"] .hljs-comment,
[data-theme="dark"] .hljs-quote {
  color: #94a3b8;
}
[data-theme="dark"] .hljs-keyword,
[data-theme="dark"] .hljs-selector-tag,
[data-theme="dark"] .hljs-subst {
  color: #f59e0b;
}
[data-theme="dark"] .hljs-number,
[data-theme="dark"] .hljs-literal,
[data-theme="dark"] .hljs-variable,
[data-theme="dark"] .hljs-template-variable,
[data-theme="dark"] .hljs-tag .hljs-attr {
  color: #60a5fa;
}
[data-theme="dark"] .hljs-string,
[data-theme="dark"] .hljs-doctag {
  color: #4ade80;
}
[data-theme="dark"] .hljs-title,
[data-theme="dark"] .hljs-section,
[data-theme="dark"] .hljs-selector-id {
  color: #c4b5fd;
}

/* AI 遮罩层 */
.ai-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  z-index: 10;
}
.ai-overlay.show {
  display: flex;
}
.ai-overlay-content {
  text-align: center;
  color: #fff;
}
.ai-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}
.ai-status-text {
  font-size: 14px;
  margin-bottom: 12px;
}
.stop-btn {
  padding: 8px 20px;
  background: rgba(239, 68, 68, 0.8);
  border: 1px solid rgba(239, 68, 68, 0.9);
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  transition: background 0.2s;
}
.stop-btn:hover {
  background: rgba(239, 68, 68, 1);
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 隐私弹窗 */
.privacy-notice {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 360px;
  max-width: calc(100vw - 40px);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}
.privacy-notice.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.privacy-notice-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.privacy-notice-title {
  font-weight: 600;
  font-size: 15px;
}
.privacy-notice-close {
  background: transparent;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--muted);
  padding: 0;
  line-height: 1;
}
.privacy-notice-close:hover {
  color: var(--text);
}
.privacy-notice-body {
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.6;
}
.privacy-notice-body p {
  margin: 0 0 10px 0;
}
.privacy-notice-body ul {
  margin: 0;
  padding-left: 0;
  list-style: none;
}
.privacy-notice-body li {
  margin-bottom: 10px;
  padding-left: 0;
}
.privacy-notice-body li:last-child {
  margin-bottom: 0;
}
.privacy-notice-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}
.privacy-btn {
  flex: 1;
  min-width: 80px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  transition: background 0.2s ease, border-color 0.2s ease;
}
.privacy-btn:hover {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.4);
}
.privacy-btn.primary {
  background: var(--button);
  border-color: var(--button);
  color: #ffffff;
}
.privacy-btn.primary:hover {
  background: #1d4ed8;
}

/* 帮助模态框 */
.help-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
}
.help-modal.show {
  display: flex;
  align-items: center;
  justify-content: center;
}
.help-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}
.help-modal-content {
  position: relative;
  width: 90%;
  max-width: 720px;
  max-height: 85vh;
  background: var(--bg);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.help-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.help-modal-header h2 {
  margin: 0;
  font-size: 18px;
}
.help-modal-close {
  background: transparent;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--muted);
  padding: 0;
  line-height: 1;
}
.help-modal-close:hover {
  color: var(--text);
}
.help-modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}
.help-section {
  margin-bottom: 24px;
}
.help-section:last-child {
  margin-bottom: 0;
}
.help-section h3 {
  margin: 0 0 12px 0;
  font-size: 15px;
  color: var(--text);
}
.help-section p {
  margin: 0 0 10px 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}
.help-section ul {
  margin: 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.help-section li {
  margin-bottom: 6px;
}
.help-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.help-table td {
  padding: 10px 12px;
  border: 1px solid var(--border);
  vertical-align: top;
}
.help-table td:first-child {
  width: 140px;
  white-space: nowrap;
}
.help-tip {
  background: rgba(37, 99, 235, 0.08);
  padding: 10px 12px;
  border-radius: 6px;
  margin-top: 12px !important;
}
.help-faq details {
  margin-bottom: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
}
.help-faq summary {
  padding: 12px;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
}
.help-faq summary:hover {
  background: rgba(37, 99, 235, 0.05);
}
.help-faq details p {
  padding: 0 12px 12px 12px;
  margin: 0;
}
.help-faq details[open] summary {
  border-bottom: 1px solid var(--border);
}
kbd {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "Fira Code", "JetBrains Mono", monospace;
  font-size: 12px;
  border: 1px solid var(--border);
}

/* 通用模态框 */
.modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal.show {
  display: flex;
}
.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}
.modal-content {
  position: relative;
  width: 90%;
  max-width: 500px;
  max-height: 85vh;
  background: var(--bg);
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.modal-header h2 {
  margin: 0;
  font-size: 16px;
}
.modal-close {
  background: transparent;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--muted);
  padding: 0;
  line-height: 1;
}
.modal-close:hover {
  color: var(--text);
}
.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}
.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.modal-footer button {
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--button);
  color: #ffffff;
}
.modal-footer button.secondary {
  background: transparent;
  color: var(--text);
}
.modal-footer button:hover {
  opacity: 0.9;
}
.form-group {
  margin-bottom: 16px;
}
.form-group:last-child {
  margin-bottom: 0;
}
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 500;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--button);
}
.form-hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.template-item {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.template-item:hover {
  border-color: var(--button);
  background: rgba(37, 99, 235, 0.05);
}
.template-item .template-name {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 4px;
}
.template-item .template-desc {
  font-size: 12px;
  color: var(--muted);
}
.ai-result {
  margin-top: 16px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel);
  max-height: 200px;
  overflow-y: auto;
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
}

.generate-modal-content {
  max-width: 560px;
}
.generate-prompt-input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  line-height: 1.6;
  resize: vertical;
}
.generate-prompt-input:focus {
  outline: none;
  border-color: var(--button);
}
.generate-custom-group {
  display: none;
}
.generate-custom-group.show {
  display: block;
}
.apply-generate-btn {
  background: #10b981 !important;
  border-color: #10b981 !important;
}
.apply-generate-btn:hover {
  background: #059669 !important;
}

/* 响应式 */
@media (max-width: 480px) {
  .privacy-notice {
    right: 10px;
    bottom: 10px;
    width: calc(100vw - 20px);
  }
  .privacy-notice-footer {
    flex-direction: column;
  }
  .privacy-btn {
    width: 100%;
  }
  .help-table td:first-child {
    width: 100px;
  }
}