.panel {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  min-width: 0;
  color: var(--dsw-color-text, #d7d9df);
  background: var(--dsw-color-surface, #17181c);
  border-left: 1px solid var(--dsw-color-border, rgba(255, 255, 255, 0.1));
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 7px 12px;
  padding: 11px 12px 10px;
  border-bottom: 1px solid var(--dsw-color-border, rgba(255, 255, 255, 0.1));
  background: var(--dsw-color-surface-raised, #1e2025);
}

.titleGroup,
.controls,
.statusRow {
  display: flex;
  align-items: center;
}

.titleGroup {
  gap: 9px;
  min-width: 0;
}

.brand {
  flex: none;
  color: var(--dsw-color-accent, #9ea7ff);
  font: 600 11px/1.4 var(--dsw-font-sans, system-ui, sans-serif);
  letter-spacing: 0.16em;
}

.title {
  overflow: hidden;
  color: var(--dsw-color-text, #f3f3f4);
  font: 600 13px/1.4 var(--dsw-font-sans, system-ui, sans-serif);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.controls {
  justify-content: flex-end;
  gap: 7px;
}

.select,
.openLink,
.closeButton {
  min-height: 26px;
  color: var(--dsw-color-text-muted, #afb1b8);
  font: 500 11px/1.3 var(--dsw-font-sans, system-ui, sans-serif);
  border: 1px solid var(--dsw-color-border, rgba(255, 255, 255, 0.12));
  border-radius: var(--dsw-radius-sm, 5px);
  background: var(--dsw-color-control, rgba(255, 255, 255, 0.04));
}

.select {
  max-width: 160px;
  padding: 0 7px;
}

.openLink {
  display: inline-flex;
  align-items: center;
  padding: 0 8px;
  text-decoration: none;
  cursor: pointer;
}

.closeButton {
  width: 26px;
  padding: 0;
  font-size: 17px;
  cursor: pointer;
}

.select:hover,
.openLink:hover,
.closeButton:hover {
  color: var(--dsw-color-text, #fff);
  background: var(--dsw-color-hover, rgba(255, 255, 255, 0.08));
}

.statusRow {
  grid-column: 1 / -1;
  gap: 7px;
  min-width: 0;
  color: var(--dsw-color-text-muted, #94979f);
  font: 11px/1.4 var(--dsw-font-sans, system-ui, sans-serif);
}

.statusDot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--dsw-color-success, #6eb78a);
}

.statusWriting {
  background: var(--dsw-color-accent, #a6adff);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--dsw-color-accent, #a6adff) 18%, transparent);
  animation: qingPulse 1.5s ease-in-out infinite;
}

.error {
  overflow: hidden;
  color: var(--dsw-color-warning, #d6ac68);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.paperViewport {
  /* 青简 ui-kit tokens.css 的完整批次 1 副本；统一加 qing 前缀，绝不污染宿主。 */
  --qing-bg-window: #e7ddc9;
  --qing-bg-canvas: #faf6ec;
  --qing-bg-paper-deep: #efe7d6;
  --qing-bg-subtle: rgba(120, 90, 50, 0.07);
  --qing-bg-panel: rgba(120, 90, 50, 0.05);
  --qing-bg-hover: rgba(120, 90, 50, 0.1);
  --qing-line-1: rgba(120, 90, 50, 0.16);
  --qing-line-2: rgba(120, 90, 50, 0.28);
  --qing-line-3: rgba(120, 90, 50, 0.42);
  --qing-line-ink: #2f2a22;
  --qing-ink-1: #2f2a22;
  --qing-ink-2: #5c5346;
  --qing-ink-3: #8a7f6e;
  --qing-ink-4: #b3a791;
  --qing-ink-cool: #8a7f6e;
  --qing-ink-on-dark: #ece3d0;
  --qing-mark: #a8823f;
  --qing-mark-soft: rgba(168, 130, 63, 0.14);
  --qing-diff-ins-bg: #e6ecd7;
  --qing-diff-ins-ink: #3a4e1d;
  --qing-diff-ins-bd: #c2cfa4;
  --qing-diff-del-bg: #f1dfd7;
  --qing-diff-del-ink: #6b2d1a;
  --qing-diff-del-bd: #d7b6a4;
  --qing-sel-bg: #f1e4a8;
  --qing-ink-surface: #1a1410;
  --qing-ink-surface-2: #221c15;
  --qing-shadow-1: 0 1px 2px rgba(50, 38, 18, 0.06);
  --qing-shadow-2: 0 6px 20px rgba(50, 38, 18, 0.1), 0 1px 3px rgba(50, 38, 18, 0.06);
  --qing-shadow-3: 0 24px 60px rgba(50, 38, 18, 0.2), 0 4px 12px rgba(50, 38, 18, 0.08);
  --qing-font-display: "EB Garamond", "Newsreader", "Source Serif Pro", "Charter", Georgia, serif;
  --qing-font-sans: "Noto Sans SC", "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  --qing-font-mono: "JetBrains Mono", ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --qing-font-zh-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", "宋体", serif;
  --qing-r-sm: 0;
  --qing-r: 0;
  --qing-r-lg: 0;
  --qing-r-pill: 999px;
  --qing-z-popover: 10020;

  position: relative;
  flex: 1;
  min-height: 0;
  overflow: auto;
  /* 容器查询基准:内层排版按列实际宽度(cqw)伸缩,窄列(dsh 右列 ~360px)自动紧凑,宽列保青简原纸面。 */
  container-type: inline-size;
  padding: clamp(10px, 3cqw, 38px) clamp(8px, 3cqw, 34px) 52px;
  color: var(--qing-ink-1);
  background:
    linear-gradient(rgba(250, 246, 236, 0.86), rgba(250, 246, 236, 0.93)),
    repeating-linear-gradient(0deg, transparent 0 3px, rgba(120, 90, 50, 0.025) 3px 4px),
    var(--qing-bg-window);
  font-family: var(--qing-font-zh-serif);
}

.paper {
  max-width: 760px;
  min-height: calc(100% - 18px);
  margin: 0 auto;
  padding: clamp(18px, 6cqw, 64px) clamp(16px, 6cqw, 64px) clamp(36px, 9cqw, 72px);
  border: 1px solid var(--qing-line-1);
  border-radius: var(--qing-r);
  background: var(--qing-bg-canvas);
  box-shadow: var(--qing-shadow-2);
  font-size: clamp(14px, 4.2cqw, 16px);
  line-height: 1.95;
  overflow-wrap: anywhere;
}

.empty {
  max-width: 760px;
  min-height: 280px;
  margin: 0 auto;
  padding: 72px 40px;
  color: var(--qing-ink-3);
  border: 1px solid var(--qing-line-1);
  background: var(--qing-bg-canvas);
  box-shadow: var(--qing-shadow-1);
  font: 15px/1.8 var(--qing-font-zh-serif);
  text-align: center;
}

.inkCursor {
  display: block;
  width: 8px;
  height: 19px;
  margin: -44px 0 40px clamp(4px, 2cqw, 14px);
  background: var(--qing-ink-1);
  animation: qingBlink 0.9s steps(2, jump-none) infinite;
}

.reviewNotice {
  position: sticky;
  bottom: 12px;
  max-width: 650px;
  margin: 18px auto 0;
  padding: 10px 13px;
  color: var(--qing-diff-del-ink);
  border: 1px solid var(--qing-diff-del-bd);
  background: color-mix(in srgb, var(--qing-diff-del-bg) 94%, transparent);
  box-shadow: var(--qing-shadow-1);
  font: 12px/1.55 var(--qing-font-sans);
}

.failureNotice {
  position: sticky;
  bottom: 12px;
  max-width: 650px;
  margin: 18px auto 0;
  padding: 10px 13px;
  color: var(--qing-ink-2);
  border: 1px solid var(--qing-line-2);
  background: color-mix(in srgb, var(--qing-bg-paper-deep) 94%, transparent);
  box-shadow: var(--qing-shadow-1);
  font: 12px/1.55 var(--qing-font-sans);
}

:global(.qing-paper .qing-document-title) {
  margin: 0 0 1.25em;
  padding-bottom: 0.55em;
  color: var(--qing-ink-1);
  border-bottom: 1px solid var(--qing-line-2);
  font: 700 clamp(20px, 7.5cqw, 42px)/1.3 var(--qing-font-zh-serif);
  letter-spacing: 0.04em;
}

:global(.qing-paper h1),
:global(.qing-paper h2),
:global(.qing-paper h3),
:global(.qing-paper h4),
:global(.qing-paper h5),
:global(.qing-paper h6) {
  color: var(--qing-ink-1);
  font-family: var(--qing-font-zh-serif);
  line-height: 1.45;
  text-wrap: balance;
}

:global(.qing-paper h1) { margin: 1.6em 0 0.65em; font-size: 1.75em; }
:global(.qing-paper h2) { margin: 1.5em 0 0.6em; font-size: 1.45em; }
:global(.qing-paper h3) { margin: 1.35em 0 0.5em; font-size: 1.2em; }
:global(.qing-paper h4),
:global(.qing-paper h5),
:global(.qing-paper h6) { margin: 1.2em 0 0.4em; font-size: 1em; }
:global(.qing-paper [data-align="center"]) { text-align: center; }
:global(.qing-paper [data-align="right"]) { text-align: right; }
:global(.qing-paper [data-align="justify"]) { text-align: justify; }

:global(.qing-paper p) { margin: 0.75em 0; }
:global(.qing-paper ul),
:global(.qing-paper ol) { margin: 0.75em 0; padding-left: 1.6em; }
:global(.qing-paper li) { margin: 0.3em 0; }
:global(.qing-paper a) { color: var(--qing-mark); text-decoration-color: color-mix(in srgb, var(--qing-mark) 45%, transparent); text-underline-offset: 0.2em; }
:global(.qing-paper code) { padding: 0.08em 0.3em; color: var(--qing-ink-surface); background: var(--qing-bg-paper-deep); font-family: var(--qing-font-mono); font-size: 0.88em; }
:global(.qing-paper blockquote) { margin: 1.1em 0; padding: 0.2em 0 0.2em 1.1em; color: var(--qing-ink-2); border-left: 3px solid var(--qing-mark); }
:global(.qing-paper hr) { margin: 2em 0; border: 0; border-top: 1px solid var(--qing-line-2); }
:global(.qing-paper img) { display: block; max-width: 100%; height: auto; margin: 1.2em auto; border: 1px solid var(--qing-line-1); }

:global(.qing-paper pre),
:global(.qing-paper .qing-code-placeholder) {
  overflow: auto;
  margin: 1.15em 0;
  color: var(--qing-ink-on-dark);
  border: 1px solid var(--qing-ink-surface);
  background: var(--qing-ink-surface-2);
  font: 12px/1.7 var(--qing-font-mono);
}

:global(.qing-paper pre) { padding: 15px 17px; white-space: pre-wrap; }
:global(.qing-paper .qing-code-placeholder figcaption) { padding: 7px 12px; color: var(--qing-ink-4); border-bottom: 1px solid rgba(236, 227, 208, 0.15); font: 11px/1.4 var(--qing-font-sans); letter-spacing: 0.08em; }
:global(.qing-paper .qing-code-placeholder pre) { margin: 0; border: 0; background: transparent; }

:global(.qing-paper table) { width: 100%; margin: 1.2em 0; border-collapse: collapse; font-size: 0.92em; }
:global(.qing-paper th),
:global(.qing-paper td) { padding: 8px 10px; border: 1px solid var(--qing-line-2); text-align: left; vertical-align: top; }
:global(.qing-paper th) { background: var(--qing-bg-paper-deep); font-family: var(--qing-font-sans); font-weight: 650; }
:global(.qing-paper th p),
:global(.qing-paper td p) { margin: 0.25em 0; }

:global(.qing-paper .qing-tasks) { padding: 0; list-style: none; }
:global(.qing-paper .qing-task) { display: flex; gap: 0.65em; align-items: flex-start; }
:global(.qing-paper .qing-task input) { margin-top: 0.55em; accent-color: var(--qing-mark); }
:global(.qing-paper .qing-task input:checked + span) { color: var(--qing-ink-3); text-decoration: line-through; }

:global(.qing-paper .qing-callout) { display: flex; gap: 10px; margin: 1.2em 0; padding: 13px 15px; color: var(--qing-ink-2); border: 1px solid var(--qing-line-2); border-left: 3px solid var(--qing-mark); background: var(--qing-mark-soft); }
:global(.qing-paper .qing-callout-success) { color: var(--qing-diff-ins-ink); border-color: var(--qing-diff-ins-bd); background: var(--qing-diff-ins-bg); }
:global(.qing-paper .qing-callout-warning),
:global(.qing-paper .qing-callout-danger) { color: var(--qing-diff-del-ink); border-color: var(--qing-diff-del-bd); background: var(--qing-diff-del-bg); }
:global(.qing-paper .qing-callout-emoji) { flex: none; }

:global(.qing-paper .qing-columns) { display: flex; gap: 16px; margin: 1.2em 0; align-items: stretch; }
:global(.qing-paper .qing-column) { min-width: 0; flex: 1 1 0; padding: 12px; border: 1px solid var(--qing-line-1); background: var(--qing-bg-panel); }
:global(.qing-paper .qing-mark) { padding: 0 0.08em; background: var(--qing-mark-soft); }
:global(.qing-paper .qing-math) { padding: 0 0.18em; font-family: var(--qing-font-mono); }
:global(.qing-paper .qing-pennote) { margin: 1em 0; padding: 10px 12px; color: var(--qing-ink-2); border: 1px dashed var(--qing-line-3); background: var(--qing-bg-subtle); }
:global(.qing-paper .qing-file) { display: inline-block; padding: 4px 7px; color: var(--qing-ink-2); border: 1px solid var(--qing-line-2); background: var(--qing-bg-paper-deep); font: 12px/1.4 var(--qing-font-sans); }
:global(.qing-paper .qing-footnote-ref) { margin-left: 0.12em; font: 10px/1 var(--qing-font-sans); }
:global(.qing-paper .qing-footnotes) { margin-top: 2.5em; padding-top: 1em; color: var(--qing-ink-3); border-top: 1px solid var(--qing-line-2); font-size: 0.82em; }
:global(.qing-paper .qing-footnotes h2) { margin: 0 0 0.6em; font-size: 1em; }

@keyframes qingBlink { 0%, 45% { opacity: 1; } 46%, 100% { opacity: 0; } }
@keyframes qingPulse { 0%, 100% { opacity: 0.65; } 50% { opacity: 1; } }

@media (max-width: 700px) {
  .toolbar { grid-template-columns: 1fr; }
  .controls { justify-content: flex-start; flex-wrap: wrap; }
  .statusRow { grid-column: 1; }
  .paperViewport { padding: 12px 9px 40px; }
  .paper { padding: 30px 22px 56px; }
  :global(.qing-paper .qing-columns) { flex-direction: column; }
  .inkCursor { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .statusWriting,
  .inkCursor { animation: none; }
}