.youyacao-md-editor {
  --md-border: #e6e8ee;
  --md-bg: #ffffff;
  --md-toolbar-bg: #f7f8fb;
  --md-btn-bg: #ffffff;
  --md-btn-hover: #eef1f7;
  --md-text: #1f2328;
  --md-muted: #6b7280;
  --md-code-bg: #0b1020;
  --md-code-text: #e5e7eb;

  border: 1px solid var(--md-border);
  border-radius: 8px;
  background: var(--md-bg);
  overflow: hidden;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  color: var(--md-text);
}

.youyacao-md-editor__toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 10px;
  background: var(--md-toolbar-bg);
  border-bottom: 1px solid var(--md-border);
}

.youyacao-md-editor__btn {
  border: 1px solid var(--md-border);
  border-radius: 6px;
  background: var(--md-btn-bg);
  padding: 6px 10px;
  cursor: pointer;
  font-size: 13px;
  color: var(--md-text);
}

.youyacao-md-editor__btn:hover {
  background: var(--md-btn-hover);
}

.youyacao-md-editor__wrap {
  display: flex;
  gap: 0;
}

.youyacao-md-editor__pane {
  flex: 1;
  min-width: 0;
  position: relative;
}

.youyacao-md-editor__pane:first-child {
  border-right: 1px solid var(--md-border);
}

.youyacao-md-editor__branding {
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-size: 11px;
  color: var(--md-muted);
  pointer-events: none;
  white-space: nowrap;
  padding: 2px 6px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 4px;
}

.youyacao-md-editor__textarea {
  width: 100%;
  height: 420px;
  border: 0;
  outline: none;
  padding: 12px;
  resize: none;
  font-size: 14px;
  line-height: 1.6;
  color: var(--md-text);
  background: #fff;
  box-sizing: border-box;
}

.youyacao-md-editor__preview {
  height: 420px;
  overflow: auto;
  padding: 12px;
  box-sizing: border-box;
  font-size: 14px;
  line-height: 1.75;
}

.youyacao-md-editor__preview p {
  margin: 0 0 12px 0;
}

.youyacao-md-editor__preview pre {
  background: var(--md-code-bg);
  color: var(--md-code-text);
  padding: 12px;
  border-radius: 8px;
  overflow: auto;
  margin: 0 0 12px 0;
}

.youyacao-md-editor__preview code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
}

.youyacao-md-editor__preview a {
  color: #b91c1c;
  text-decoration: none;
}

.youyacao-md-editor__preview a:hover {
  text-decoration: underline;
}

.youyacao-md-editor__preview blockquote {
  margin: 0 0 12px 0;
  padding: 8px 12px;
  border-left: 3px solid #b91c1c;
  background: #fff1f2;
  border-radius: 6px;
  color: #374151;
}

.youyacao-md-editor__preview hr {
  border: none;
  border-top: 1px solid var(--md-border);
  margin: 14px 0;
}