/* =========================================================
   Markdown 编辑器 · 作用域 .page-markdown-editor
   ========================================================= */
.page-markdown-editor {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--c-surface);
  overflow: hidden;
}

/* 顶部工具栏（历史操作、导出） */
.page-markdown-editor .me-topbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 8px 16px;
  background: var(--c-surface-2);
  border-bottom: 1px solid var(--c-border);
  flex: 0 0 auto;
}
.page-markdown-editor .me-actions {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}
.page-markdown-editor .me-actions::-webkit-scrollbar {
  display: none;
}

.page-markdown-editor button {
  font: inherit;
  font-size: var(--fs-sm);
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  padding: 5px 10px;
  cursor: pointer;
  white-space: nowrap;
  transition: .15s;
}
.page-markdown-editor button:hover:not(:disabled) {
  background: var(--c-surface-3);
  border-color: var(--c-border-strong);
}
.page-markdown-editor button:active:not(:disabled) {
  transform: translateY(1px);
}
.page-markdown-editor button:disabled {
  opacity: .4;
  cursor: not-allowed;
}

/* 格式化工具栏 */
.page-markdown-editor .me-toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-bottom: 1px solid var(--c-border);
  background: var(--c-surface);
  flex: 0 0 auto;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}
.page-markdown-editor .me-toolbar::-webkit-scrollbar {
  display: none;
}
.page-markdown-editor .me-toolbar button {
  padding: 4px 8px;
  min-width: 32px;
  font-size: var(--fs-sm);
}
.page-markdown-editor .me-toolbar .sep {
  width: 1px;
  height: 18px;
  background: var(--c-border);
  margin: 0 4px;
  flex: 0 0 auto;
}

/* 主体分栏 */
.page-markdown-editor .me-panes {
  display: flex;
  flex: 1 1 auto;
  min-height: 0;
}
.page-markdown-editor .me-pane {
  flex: 1 1 50%;
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.page-markdown-editor .me-divider {
  width: 1px;
  background: var(--c-border);
  flex: 0 0 auto;
}

/* 编辑区 */
.page-markdown-editor #me-editor {
  flex: 1;
  width: 100%;
  border: none;
  outline: none;
  resize: none;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  background: var(--c-surface);
  color: var(--c-text);
  tab-size: 2;
}
.page-markdown-editor #me-editor::placeholder {
  color: var(--c-text-faint);
}

/* 预览区 */
.page-markdown-editor #me-preview {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px 60px;
  background: var(--c-surface);
}

/* Markdown 排版 */
.page-markdown-editor .markdown-body {
  line-height: 1.7;
  font-size: var(--fs-base);
  word-wrap: break-word;
  color: var(--c-text);
}
.page-markdown-editor .markdown-body > *:first-child { margin-top: 0; }
.page-markdown-editor .markdown-body h1,
.page-markdown-editor .markdown-body h2,
.page-markdown-editor .markdown-body h3,
.page-markdown-editor .markdown-body h4,
.page-markdown-editor .markdown-body h5,
.page-markdown-editor .markdown-body h6 {
  margin: 1em 0 .5em;
  font-weight: 600;
  line-height: 1.3;
}
.page-markdown-editor .markdown-body h1 { font-size: 1.8em; padding-bottom: .3em; border-bottom: 1px solid var(--c-border); }
.page-markdown-editor .markdown-body h2 { font-size: 1.4em; padding-bottom: .3em; border-bottom: 1px solid var(--c-border); }
.page-markdown-editor .markdown-body h3 { font-size: 1.2em; }
.page-markdown-editor .markdown-body p { margin: .6em 0; }
.page-markdown-editor .markdown-body a { color: var(--c-accent); text-decoration: none; }
.page-markdown-editor .markdown-body a:hover { text-decoration: underline; }
.page-markdown-editor .markdown-body code {
  background: var(--c-surface-3);
  padding: .15em .4em;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: .88em;
}
.page-markdown-editor .markdown-body pre {
  background: var(--c-code-bg);
  padding: 12px;
  border-radius: 8px;
  overflow-x: auto;
  margin: .8em 0;
  border: 1px solid var(--c-border);
}
.page-markdown-editor .markdown-body pre code {
  background: none;
  padding: 0;
  font-size: .88em;
  color: var(--c-code-text);
}
.page-markdown-editor .markdown-body blockquote {
  margin: .8em 0;
  padding: .2em 1em;
  border-left: 4px solid var(--c-accent);
  background: var(--c-surface-2);
  color: var(--c-text-dim);
  border-radius: 0 6px 6px 0;
}
.page-markdown-editor .markdown-body ul,
.page-markdown-editor .markdown-body ol {
  padding-left: 1.5em;
  margin: .6em 0;
}
.page-markdown-editor .markdown-body table {
  border-collapse: collapse;
  margin: .8em 0;
  display: block;
  overflow-x: auto;
}
.page-markdown-editor .markdown-body th,
.page-markdown-editor .markdown-body td {
  border: 1px solid var(--c-border);
  padding: 6px 12px;
}
.page-markdown-editor .markdown-body th {
  background: var(--c-surface-2);
  font-weight: 600;
}

/* 底部状态栏 */
.page-markdown-editor .me-statusbar {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
  padding: 4px 16px;
  font-size: 11px;
  color: var(--c-text-dim);
  border-top: 1px solid var(--c-border);
  background: var(--c-surface-2);
  flex: 0 0 auto;
}

/* 移动端适配 */
@media (max-width: 720px) {
  .page-markdown-editor .me-topbar { padding: 6px 10px; }
  .page-markdown-editor .me-actions { width: 100%; justify-content: flex-end; }
  
  .page-markdown-editor .me-panes { flex-direction: column; }
  .page-markdown-editor .me-pane { flex: 1 1 50%; min-height: 0; }
  .page-markdown-editor .me-divider { width: auto; height: 1px; }
  
  .page-markdown-editor #me-editor {
    font-size: 16px; /* 防止 iOS 自动放大 */
    padding: 12px;
  }
  .page-markdown-editor #me-preview { padding: 12px; }
}