/* ==========================
 * 分块对比 Flex 样式
 * ========================== */
.align-flex {
  display: flex;
  gap: 0;
  margin-bottom: 1em;
  position: relative;
  align-items: stretch;
}

.align-block {
  min-width: 0;
  overflow-x: auto;
  background: #f9fafb;
  border-radius: 8px;
  border: 1px solid #e2e8f0;
  padding: 12px;
  box-sizing: border-box;
  box-shadow: 0 1px 4px 0 rgba(0,0,0,0.03);
  transition: flex-basis 0.2s;
}

.splitter {
  width: 4px;
  min-width: 4px;
  max-width: 12px;
  background: transparent;
  cursor: col-resize;
  position: relative;
  z-index: 2;
  margin: 0 0.5em;
  border: none;
  border-radius: 2px;
  transition: background 0.2s;
}

.splitter:hover,
.splitter.active {
  background: rgba(37,99,235,0.08);
  border-left: 2px dashed #2563eb;
  border-right: 2px dashed #2563eb;
  border-radius: 3px;
}

.align-title {
  font-size: 0.98em;
  color: #64748b;
  margin-bottom: 6px;
  font-weight: 500;
  border-bottom: 1px dashed #e2e8f0;
  padding-bottom: 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.align-title .align-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.block-icon-btn {
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 2px 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.block-icon-btn:hover { background: #e0e7ff; border-color: #c7d2fe; }
.block-icon-btn svg { width: 14px; height: 14px; stroke: #64748b; }
.block-icon-btn:hover svg { stroke: #2563eb; }

.align-content {
  word-break: break-all;
  white-space: pre-wrap;
  overflow-x: auto;
}

.align-content pre {
  max-width: 100%;
  overflow-x: auto;
  display: block;
  word-break: break-all;
  white-space: pre-wrap;
}

/* ==========================
 * 分块工具栏样式
 * ========================== */
.block-toolbar {
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.block-toolbar-left {
  display: flex;
  gap: 8px;
  align-items: center;
}

.block-toolbar-right {
  display: flex;
  gap: 4px;
}

.block-toolbar-left .block-mode-btn {
  font-size: 12px;
  color: #64748b;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
  user-select: none;
}

.block-toolbar-left .block-mode-btn.active {
  background: #e0e7ff;
  color: #2563eb;
  font-weight: bold;
}

.block-toolbar-left .block-mode-btn:hover:not(.active) {
  background: #f1f5f9;
  color: #1e293b;
}

.block-toolbar-left .block-copy-btn {
  font-size: 12px;
  color: #64748b;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 2px 8px;
  margin-left: 8px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.block-toolbar-left .block-copy-btn:hover {
  background: #e0e7ff;
  color: #2563eb;
}

.block-struct-copy-btn {
  font-size: 11px;
  color: #64748b;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 8px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.block-struct-copy-btn:hover {
  background: #e0e7ff;
  color: #2563eb;
}

/* ==========================
 * 分块高亮样式
 * ========================== */
.block-outer.block-highlight {
  box-shadow: 0 0 0 3px #2563eb44;
  transition: box-shadow 0.3s;
}

.block-toolbar .block-toggle-btn.active {
  background: #e0e7ff;
  color: #2563eb;
  border-radius: 5px;
}

.block-toolbar .block-toggle-btn,
.block-toolbar .block-nav-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 0; /* 隐藏原来的 ↑/↓ 文本 */
  padding: 0;
  width: 22px;
  height: 18px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, border-color 0.15s;
}

.block-toolbar .block-nav-btn::before {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  /* 短粗三角：底宽更大，高度相对较小 */
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
}

.block-toolbar .block-nav-btn[data-dir="prev"]::before {
  border-bottom: 7px solid #9ca3af; /* 灰色，向上 */
}

.block-toolbar .block-nav-btn[data-dir="next"]::before {
  border-top: 7px solid #9ca3af; /* 灰色，向下 */
}

.block-toolbar .block-toggle-btn:hover,
.block-toolbar .block-nav-btn:hover {
  background: #f1f5f9;
}

/* ==========================
 * 批注高亮样式
 * ========================== */
.annotation-highlight {
  cursor: pointer;
  border-radius: 3px;
}

.annotation-highlight.bg-yellow {
  background-color: rgba(255, 255, 0, 0.75);
}

.annotation-highlight.bg-pink {
  background-color: rgba(253, 170, 200, 0.75);
}

.annotation-highlight.bg-lightblue {
  background-color: rgba(95, 211, 250, 0.75);
}

.annotation-highlight.bg-lightgreen {
  background-color: rgba(178, 253, 178, 0.75);
}

.annotation-highlight.bg-purple {
  background-color: rgba(221, 160, 221, 0.75);
}

.annotation-highlight.bg-orange {
  background-color: rgba(255, 165, 0, 0.75);
}