/* 教师版 · 答案展示（折叠解析 + 原文/表格内联答案） */

body.teacher-edition #part-listen .listen-no-answer-note {
  margin: 12px 0 20px;
  padding: 12px 16px;
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  border-radius: 8px;
  color: #0369a1;
  font-size: 0.9rem;
  line-height: 1.6;
}

/* 听力：不展示任何书面答案 */
body.teacher-edition #part-listen .teacher-key,
body.teacher-edition #part-listen .teacher-after-q,
body.teacher-edition #part-listen .teacher-fill,
body.teacher-edition #part-listen .teacher-inline-ans,
body.teacher-edition #part-listen .ans-letter-inline,
body.teacher-edition #part-listen .chart-teacher-row,
body.teacher-edition #part-listen .exam-parse-btn,
body.teacher-edition #part-listen .exam-parse-single,
body.teacher-edition #part-listen .exam-parse-group-btn,
body.teacher-edition #part-listen .exam-parse-panel {
  display: none !important;
}
body.teacher-edition #part-listen .opt-correct {
  background: transparent !important;
  border: none !important;
  font-weight: inherit !important;
  color: inherit !important;
}
body.teacher-edition #part-listen .opt-correct .opt-key,
body.teacher-edition #part-listen .opt-correct .opt-body {
  color: inherit !important;
  font-weight: inherit !important;
}
body.teacher-edition #part-listen input[type="radio"]:checked + .opt-key,
body.teacher-edition #part-listen input[type="radio"]:checked ~ .opt-body {
  font-weight: inherit;
}

body.teacher-edition .toolbar a.toolbar-link {
  color: #fff;
  text-decoration: none;
  padding: 0.45rem 0.9rem;
  border-radius: 6px;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.18);
}
body.teacher-edition .toolbar a.toolbar-link:hover {
  background: rgba(255, 255, 255, 0.3);
}
body.teacher-edition .teacher-banner {
  margin: 0 0 20px;
  padding: 14px 18px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 8px;
  font-size: 0.9rem;
  line-height: 1.6;
}
body.teacher-edition .teacher-banner .tb-title {
  margin: 0 0 6px;
  font-weight: 700;
  color: #1e40af;
}
body.teacher-edition .teacher-banner .tb-note {
  margin: 0;
  color: #475569;
}

/* 内联答案（语篇/表格） */
body.teacher-edition .exam-inline-ans,
body.teacher-edition .teacher-fill.screen-only {
  color: #dc2626 !important;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: #fecaca;
  text-underline-offset: 2px;
  display: inline !important;
  margin-left: 0.2em;
}
body.teacher-edition .passage-select .inline-blank .exam-inline-ans,
body.teacher-edition .dialogue-box .inline-blank .exam-inline-ans,
body.teacher-edition .fill-word-pick .inline-blank .exam-inline-ans,
body.teacher-edition .blank-wrap .exam-inline-ans,
body.teacher-edition .b-blank-wrap .exam-inline-ans,
body.teacher-edition .passage-blank-wrap .exam-inline-ans,
body.teacher-edition .passage-cloze-mc .passage-blank-wrap .exam-inline-ans {
  white-space: nowrap;
}
body.teacher-edition .inline-blank .blank-line-input,
body.teacher-edition .inline-blank .cloze-line,
body.teacher-edition .blank-wrap input.chart-blank,
body.teacher-edition .blank-wrap .chart-blank-line,
body.teacher-edition .passage-blank-line {
  display: none !important;
}
body.teacher-edition .teacher-inline-ans {
  display: none !important;
}
body.teacher-edition .chart-teacher-row {
  display: none !important;
}
body.teacher-edition .teacher-after-q {
  display: none !important;
}
body.teacher-edition .exam-ans-pre {
  display: none !important;
}
body.teacher-edition .inline-blank .blank-num,
body.teacher-edition .blank-wrap .blank-num {
  color: #9ca3af;
  font-size: 0.85em;
  margin-right: 2px;
}
body.teacher-edition .passage-select .inline-blank,
body.teacher-edition .dialogue-box .inline-blank,
body.teacher-edition .fill-word-pick .inline-blank {
  display: inline;
  white-space: normal;
  vertical-align: baseline;
}
body.teacher-edition .passage-select p,
body.teacher-edition .dialogue-box p,
body.teacher-edition .fill-word-pick p {
  text-align: left;
  text-align: start;
  line-height: 1.75;
  margin: 0 0 0.6em;
}
body.teacher-edition .passage-select p.cloze-para-start,
body.teacher-edition .teacher-passage-blanks p.cloze-para-start {
  text-indent: 2em;
}

/* 任务型阅读：每题展示参考答案 + 折叠解析 */
body.teacher-edition .short-ans {
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}
body.teacher-edition .short-ans textarea,
body.teacher-edition .short-ans .line-block {
  display: none !important;
}
body.teacher-edition .exam-task-block {
  margin: 8px 0 18px;
  padding: 0 0 14px;
  border-bottom: 1px dashed #e5e7eb;
  max-width: 100%;
  box-sizing: border-box;
}
body.teacher-edition .short-ans > p:last-of-type + .exam-task-block,
body.teacher-edition .short-ans .exam-task-block:last-child {
  border-bottom: none;
}
body.teacher-edition .exam-task-ans {
  margin: 6px 0 8px;
  line-height: 1.7;
  font-size: 0.95rem;
  max-width: 100%;
  overflow-wrap: break-word;
  word-break: break-word;
}
body.teacher-edition .exam-task-ans .exam-inline-ans {
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}
body.teacher-edition .exam-task-ans strong {
  color: #374151;
  font-weight: 600;
  margin-right: 4px;
}

/* 选择题：原块解析默认隐藏，由折叠区展示 */
body.teacher-edition .q-unit > .teacher-key,
body.teacher-edition .q-item > .teacher-key {
  display: none;
}

body.teacher-edition .exam-parse-btn {
  display: inline-block;
  margin: 8px 0 0;
  padding: 5px 12px;
  border: 1px solid #93c5fd;
  border-radius: 6px;
  background: #eff6ff;
  color: #1d4ed8;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
}
body.teacher-edition .exam-parse-btn:hover {
  background: #dbeafe;
}
body.teacher-edition .exam-parse-btn.is-open {
  background: #1d4ed8;
  color: #fff;
  border-color: #1d4ed8;
}

body.teacher-edition .exam-parse-group-btn {
  display: inline-block;
  margin: 14px 0 6px;
  padding: 7px 16px;
  border: 1px solid #fca5a5;
  border-radius: 8px;
  background: #fef2f2;
  color: #dc2626;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
}
body.teacher-edition .exam-parse-group-btn:hover {
  background: #fee2e2;
}
body.teacher-edition .exam-parse-group-btn.is-open {
  background: #dc2626;
  color: #fff;
  border-color: #dc2626;
}

body.teacher-edition .exam-parse-panel,
body.teacher-edition .exam-parse-single {
  display: none;
  clear: both;
  width: 100%;
  max-width: 100%;
  margin: 10px 0 16px;
  padding: 14px 16px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-left: 4px solid #2563eb;
  border-radius: 0 8px 8px 0;
  box-sizing: border-box;
  overflow-wrap: break-word;
  word-break: break-word;
}
body.teacher-edition .exam-parse-panel.is-open,
body.teacher-edition .exam-parse-single.is-open {
  display: block;
}
body.teacher-edition .exam-parse-panel .teacher-key,
body.teacher-edition .exam-parse-single .teacher-key {
  display: block;
  margin: 0 0 14px;
  padding: 0 0 12px;
  border-bottom: 1px dashed #e2e8f0;
  background: transparent;
  border-left: none;
}
body.teacher-edition .exam-parse-panel .teacher-key:last-child,
body.teacher-edition .exam-parse-single .teacher-key:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

/* 听力选项表：恢复与学生版一致的 grid 子项结构 */
body.teacher-edition #part-listen .listen-abc-grid {
  display: grid !important;
  grid-template-columns: 2.5em minmax(9.5em, 1fr) minmax(11em, 1fr) minmax(13em, 1fr);
  column-gap: 20px;
  align-items: center;
}
body.teacher-edition #part-listen .listen-abc-grid .q-row-opts-grid {
  display: contents !important;
}
body.teacher-edition #part-listen .listen-abc-grid > .q-num,
body.teacher-edition #part-listen .listen-abc-grid > .opt-cell {
  padding: 10px 4px;
  border-bottom: 1px solid var(--line, #e5e7eb);
  min-height: 2.6em;
  display: flex;
  align-items: center;
}
body.teacher-edition #part-listen .listen-abc-grid > .q-num {
  font-weight: 700;
  justify-content: flex-end;
  padding-right: 8px;
}
body.teacher-edition #part-listen .listen-abc-grid > .opt-cell {
  gap: 4px;
  white-space: nowrap;
}

/* 完形选项表：每题独立一行，避免 q-unit 破坏外层 grid */
body.teacher-edition .q-abc-grid.cloze-abc-grid {
  display: block !important;
  margin-top: 12px;
}
body.teacher-edition .cloze-abc-grid .q-unit-row {
  display: block;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line, #e5e7eb);
  padding-bottom: 6px;
}
body.teacher-edition .cloze-abc-grid .q-unit-row .q-row-opts-grid {
  display: grid !important;
  grid-template-columns: 2.5em 1fr 1fr 1fr;
  gap: 8px;
  align-items: center;
}
body.teacher-edition .cloze-abc-grid .q-unit-row .q-num {
  font-weight: 700;
  justify-content: flex-end;
  padding-right: 8px;
}
body.teacher-edition .cloze-abc-grid .q-unit-row .opt-cell {
  gap: 4px;
  padding: 8px 4px;
  display: flex;
  align-items: center;
  white-space: nowrap;
}
body.teacher-edition .cloze-abc-grid .exam-parse-group-wrap {
  clear: both;
  margin-top: 12px;
}

body.teacher-edition .passage-cloze-mc .passage-blank-wrap {
  white-space: normal;
}
body.teacher-edition .passage-cloze-mc .passage-blank-wrap .passage-blank-line {
  display: none !important;
}
body.teacher-edition .passage-cloze-mc .passage-blank-wrap .exam-inline-ans,
body.teacher-edition .passage-cloze-mc .passage-blank-wrap .teacher-fill {
  display: inline;
  margin: 0 0.15em;
}