.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid #e6dfd6;
}
.content { min-width: 0; }
.upload-actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.confirm { background: #356052; }
.confirm:disabled { cursor: not-allowed; opacity: .42; }
.upload-hint { margin-top: 7px; color: #8a8178; font-size: 13px; }
.text-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.highlight-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.highlight-columns h3 { margin: 10px 0 0; color: #554c44; font-size: 14px; }
.text-columns h3 { margin: 16px 0 0; color: #554c44; font-size: 15px; }
.text-columns textarea { min-height: 560px; }
.simple-export { background: #356052 !important; }
.head-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.danger { background: #9a3e32; }
.danger:disabled { cursor: not-allowed; opacity: .42; }
.dictionary-panel { min-height: 520px; }
.dictionary-search { display: flex; gap: 12px; margin: 22px 0 26px; max-width: 620px; }
.dictionary-search input { flex: 1; min-width: 0; border: 1px solid #d4ccc2; border-radius: 10px; padding: 12px 15px; font: 22px "SimSun", serif; }
.dictionary-result { border: 1px solid #e1d8cc; border-radius: 14px; overflow: hidden; background: #fcfaf6; }
.dictionary-result.empty { min-height: 240px; display: grid; place-items: center; color: #92887f; }
.dictionary-placeholder { padding: 40px; text-align: center; }
.dictionary-char { padding: 28px 20px 18px; text-align: center; font: 72px/1 "STKaiti","KaiTi",serif; color: #a33b2e; }
.dictionary-pairs { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid #e4d9cc; border-bottom: 1px solid #e4d9cc; }
.dictionary-pair { padding: 16px 22px; text-align: center; }
.dictionary-pair + .dictionary-pair { border-left: 1px solid #e4d9cc; }
.dictionary-pair span { display: block; color: #796f65; font-size: 13px; margin-bottom: 7px; }
.dictionary-pair strong { font: 30px "SimSun",serif; color: #3a302a; }
.dictionary-table { width: 100%; border-collapse: collapse; }
.dictionary-table th,.dictionary-table td { border-bottom: 1px solid #e8ded2; padding: 13px 16px; text-align: left; vertical-align: top; line-height: 1.7; }
.dictionary-table th { width: 110px; color: #6f5545; background: #f8f2e9; }
.dictionary-source { padding: 10px 16px; color: #94877c; font-size: 12px; }
@media (max-width: 1100px) {
  .text-columns, .highlight-columns { grid-template-columns: 1fr; }
}
.preview-head span { color: #7b736b; font-size: 12px; }
.highlight-preview {
  margin-top: 10px;
  min-height: 80px;
  max-height: 340px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid #ded7cd;
  border-radius: 10px;
  background: #fbfaf7;
  padding: 14px;
  font: 16px/1.85 "SimSun", serif;
}
.highlight-preview.empty { color: #948b82; }
.proof-mark {
  color: #a51212;
  background: #ffe58a;
  border-bottom: 2px solid #d32f2f;
  border-radius: 2px;
  padding: 0 2px;
  font-weight: 700;
}
@media (max-width: 850px) {
  .preview-head { align-items: flex-start; flex-direction: column; }
  .dictionary-pairs { grid-template-columns: 1fr; }
  .dictionary-pair + .dictionary-pair { border-left: 0; border-top: 1px solid #e4d9cc; }
}