/* ============================================================
   Mini Games — 语法纠错 / 句子重组 / 同义词替换
   统一基础样式 + 各游戏主题色
   ============================================================ */

/* ---- 通用：开始页按钮组 ---- */
.grammar-start-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

.grammar-start-buttons .vocab-game__btn {
  flex: 1;
  min-width: 120px;
  max-width: 200px;
  margin: 0;
}

/* ---- 通用：下一题按钮容器 ---- */
.grammar-next-wrap {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.grammar-next-wrap .vocab-game__btn {
  min-width: 180px;
  justify-content: center;
}

/* ---- 通用：答案反馈标题 ---- */
.grammar-feedback-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.grammar-explanation.is-correct .grammar-feedback-title {
  color: #4ade80;
}
.grammar-explanation.is-wrong .grammar-feedback-title {
  color: #f87171;
}

.grammar-feedback-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
}

.grammar-explanation.is-correct .grammar-feedback-icon {
  background: rgba(74, 222, 128, 0.2);
  color: #4ade80;
}
.grammar-explanation.is-wrong .grammar-feedback-icon {
  background: rgba(248, 113, 113, 0.2);
  color: #f87171;
}

/* ============================================================
   1. 语法纠错大师 — 绿色系
   ============================================================ */

/* 页面背景渐变 */
.vocab-game-page--grammar.grammar-game-page {
  --accent-color: #10b981;
  --accent-color-light: #34d399;
  --accent-color-dark: #059669;
  background: linear-gradient(135deg, #064e3b 0%, #065f46 40%, #047857 100%);
  position: relative;
}

html[data-theme="light"] .vocab-game-page--grammar.grammar-game-page {
  background: linear-gradient(135deg, #ECFDF5 0%, #F0FDF4 40%, #F7FEF9 100%);
}

/* 卡片文字 */
.vocab-game-page--grammar .vocab-game__title { color: #fff; }
.vocab-game-page--grammar .vocab-game__subtitle { color: rgba(255,255,255,0.6); }
.vocab-game-page--grammar .vocab-game__intro { color: rgba(255,255,255,0.75); }
.vocab-game-page--grammar .vocab-game__vocab-count { color: rgba(255,255,255,0.7); }
.vocab-game-page--grammar .vocab-game__vocab-count strong { color: #34d399; }

html[data-theme="light"] .vocab-game-page--grammar .vocab-game__title { color: #064e3b; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__subtitle { color: #6b7280; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__intro { color: #374151; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__vocab-count { color: #4b5563; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__vocab-count strong { color: #059669; }

/* 主按钮 */
.vocab-game-page--grammar .vocab-game__btn--primary {
  background: linear-gradient(135deg, #10b981 0%, #34d399 100%);
  color: #064e3b;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.4);
}
.vocab-game-page--grammar .vocab-game__btn--primary:hover {
  background: linear-gradient(135deg, #059669 0%, #10b981 100%);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
  transform: translateY(-1px);
}

/* outline 按钮 */
.vocab-game-page--grammar .vocab-game__btn--outline {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.8);
}
.vocab-game-page--grammar .vocab-game__btn--outline:hover {
  background: rgba(255,255,255,0.14);
  color: #fff;
}

html[data-theme="light"] .vocab-game-page--grammar .vocab-game__btn--outline {
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(5, 150, 105, 0.3);
  color: #047857;
}
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__btn--outline:hover {
  background: rgba(16, 185, 129, 0.1);
  color: #065f46;
}

/* HUD */
.vocab-game-page--grammar .vocab-game__hud-label { color: rgba(255,255,255,0.5); }
.vocab-game-page--grammar .vocab-game__hud-value { color: #fff; }

html[data-theme="light"] .vocab-game-page--grammar .vocab-game__hud-label { color: #6b7280; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__hud-value { color: #064e3b; }

/* 分数值特殊色 */
.vocab-game-page--grammar .vocab-game__score { color: #34d399; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__score { color: #059669; }

/* 问题卡片 */
.grammar-question-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 24px 28px;
  margin: 20px 0;
  position: relative;
}

html[data-theme="light"] .grammar-question-card {
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(5, 150, 105, 0.12);
}

.grammar-question-type {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #34d399;
  background: rgba(52, 211, 153, 0.15);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

html[data-theme="light"] .grammar-question-type {
  color: #059669;
  background: rgba(16, 185, 129, 0.12);
}

.grammar-sentence {
  font-size: 22px;
  font-weight: 500;
  color: #fff;
  line-height: 1.6;
  font-family: 'Georgia', 'Times New Roman', serif;
  letter-spacing: 0.01em;
}

html[data-theme="light"] .grammar-sentence {
  color: #1f2937;
}

/* 选项 */
.vocab-game-page--grammar .vocab-game__option {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
}
.vocab-game-page--grammar .vocab-game__option:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(52, 211, 153, 0.4);
}
.vocab-game-page--grammar .vocab-game__option.is-correct {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  color: #34d399;
}
.vocab-game-page--grammar .vocab-game__option.is-wrong {
  background: rgba(248, 113, 113, 0.15);
  border-color: #f87171;
  color: #fca5a5;
}
.vocab-game-page--grammar .vocab-game__option.is-disabled {
  pointer-events: none;
  opacity: 0.6;
}
.vocab-game-page--grammar .vocab-game__option.is-disabled.is-correct,
.vocab-game-page--grammar .vocab-game__option.is-disabled.is-wrong {
  opacity: 1;
}
.vocab-game-page--grammar .vocab-game__option-label {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
}

html[data-theme="light"] .vocab-game-page--grammar .vocab-game__option {
  background: #fff;
  border: 1px solid rgba(5, 150, 105, 0.15);
  color: #1f2937;
}
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__option:hover {
  background: rgba(16, 185, 129, 0.06);
  border-color: rgba(5, 150, 105, 0.35);
}
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__option.is-correct {
  background: rgba(16, 185, 129, 0.12);
  border-color: #10b981;
  color: #047857;
}
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__option.is-wrong {
  background: rgba(248, 113, 113, 0.1);
  border-color: #f87171;
  color: #b91c1c;
}
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__option-label {
  background: rgba(5, 150, 105, 0.1);
  color: #047857;
}

/* 解析框 */
.grammar-explanation {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}

html[data-theme="light"] .grammar-explanation {
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(5, 150, 105, 0.12);
}

.quiz-explanation__label {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

html[data-theme="light"] .quiz-explanation__label { color: #6b7280; }

.quiz-explanation__text {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  line-height: 1.5;
}

html[data-theme="light"] .quiz-explanation__text { color: #374151; }

/* 结果页 */
.vocab-game-page--grammar .vocab-game__end-title { color: #fff; }
.vocab-game-page--grammar .vocab-game__final-score { color: #34d399; }
.vocab-game-page--grammar .vocab-game__rating { color: rgba(255,255,255,0.7); }
.vocab-game-page--grammar .vocab-game__stat-value { color: #fff; }
.vocab-game-page--grammar .vocab-game__stat-label { color: rgba(255,255,255,0.5); }
.vocab-game-page--grammar .vocab-game__new-record { color: #fbbf24; }

html[data-theme="light"] .vocab-game-page--grammar .vocab-game__end-title { color: #064e3b; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__final-score { color: #059669; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__rating { color: #4b5563; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__stat-value { color: #064e3b; }
html[data-theme="light"] .vocab-game-page--grammar .vocab-game__stat-label { color: #6b7280; }

/* ============================================================
   2. 句子重组游戏 — 紫色系
   ============================================================ */

.vocab-game-page--sentence.sentence-game-page {
  --accent-color: #8b5cf6;
  --accent-color-light: #a78bfa;
  --accent-color-dark: #7c3aed;
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 40%, #4338ca 100%);
  position: relative;
}

html[data-theme="light"] .vocab-game-page--sentence.sentence-game-page {
  background: linear-gradient(135deg, #F5F3FF 0%, #EDE9FE 40%, #FAF5FF 100%);
}

.vocab-game-page--sentence .vocab-game__title { color: #fff; }
.vocab-game-page--sentence .vocab-game__subtitle { color: rgba(255,255,255,0.6); }
.vocab-game-page--sentence .vocab-game__intro { color: rgba(255,255,255,0.75); }
.vocab-game-page--sentence .vocab-game__vocab-count { color: rgba(255,255,255,0.7); }
.vocab-game-page--sentence .vocab-game__vocab-count strong { color: #a78bfa; }

html[data-theme="light"] .vocab-game-page--sentence .vocab-game__title { color: #312e81; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__subtitle { color: #6b7280; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__intro { color: #374151; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__vocab-count { color: #4b5563; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__vocab-count strong { color: #7c3aed; }

.vocab-game-page--sentence .vocab-game__btn--primary {
  background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(139, 92, 246, 0.4);
}
.vocab-game-page--sentence .vocab-game__btn--primary:hover {
  background: linear-gradient(135deg, #7c3aed 0%, #8b5cf6 100%);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
  transform: translateY(-1px);
}

.vocab-game-page--sentence .vocab-game__btn--primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.vocab-game-page--sentence .vocab-game__btn--outline {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.8);
}
.vocab-game-page--sentence .vocab-game__btn--outline:hover {
  background: rgba(255,255,255,0.14);
  color: #fff;
}
.vocab-game-page--sentence .vocab-game__btn--outline:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.vocab-game-page--sentence .vocab-game__btn--outline.is-hint-used {
  opacity: 0.6;
}

html[data-theme="light"] .vocab-game-page--sentence .vocab-game__btn--outline {
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(124, 58, 237, 0.3);
  color: #6d28d9;
}
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__btn--outline:hover {
  background: rgba(139, 92, 246, 0.1);
  color: #5b21b6;
}

.vocab-game-page--sentence .vocab-game__hud-label { color: rgba(255,255,255,0.5); }
.vocab-game-page--sentence .vocab-game__hud-value { color: #fff; }

html[data-theme="light"] .vocab-game-page--sentence .vocab-game__hud-label { color: #6b7280; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__hud-value { color: #312e81; }

.vocab-game-page--sentence .vocab-game__score { color: #a78bfa; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__score { color: #7c3aed; }

/* 题目卡 */
.sentence-question-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 20px 24px;
  margin: 20px 0;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

html[data-theme="light"] .sentence-question-card {
  background: rgba(255,255,255,0.9);
  border: 1px solid rgba(124, 58, 237, 0.12);
}

.sentence-question-type {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #a78bfa;
  background: rgba(167, 139, 250, 0.15);
  padding: 4px 12px;
  border-radius: 999px;
  align-self: flex-start;
}

html[data-theme="light"] .sentence-question-type {
  color: #7c3aed;
  background: rgba(139, 92, 246, 0.12);
}

/* 答案区 */
.sentence-answer-area {
  min-height: 60px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 12px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px dashed rgba(255,255,255,0.2);
  border-radius: 10px;
}

html[data-theme="light"] .sentence-answer-area {
  background: rgba(245, 243, 255, 0.5);
  border: 1px dashed rgba(124, 58, 237, 0.3);
}

.sentence-answer-placeholder {
  color: rgba(255,255,255,0.4);
  font-size: 14px;
  font-style: italic;
  width: 100%;
  text-align: center;
}

html[data-theme="light"] .sentence-answer-placeholder {
  color: #a5a0b8;
}

.sentence-answer-word {
  padding: 8px 14px;
  border-radius: 8px;
  background: linear-gradient(135deg, #8b5cf6 0%, #a78bfa 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}
.sentence-answer-word:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

/* 待选单词区 */
.sentence-words-area {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  justify-content: center;
}

.sentence-word-btn {
  padding: 10px 18px;
  border-radius: 10px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.9);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}

html[data-theme="light"] .sentence-word-btn {
  background: #fff;
  border: 1px solid rgba(124, 58, 237, 0.2);
  color: #312e81;
}

.sentence-word-btn:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: #8b5cf6;
  transform: translateY(-1px);
}

.sentence-word-btn.is-selected {
  opacity: 0.3;
  pointer-events: none;
  text-decoration: line-through;
}

html[data-theme="light"] .sentence-word-btn:hover {
  background: rgba(139, 92, 246, 0.1);
}

/* 控制按钮 */
.sentence-controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.sentence-controls .vocab-game__btn {
  flex: 1;
  min-width: 100px;
  max-width: 180px;
  margin: 0;
}

/* 反馈 */
.sentence-explanation {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}

html[data-theme="light"] .sentence-explanation {
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(124, 58, 237, 0.12);
}

.sentence-correct-text {
  font-size: 16px;
  font-weight: 500;
  color: #a78bfa;
  margin-bottom: 10px;
  line-height: 1.5;
  font-family: 'Georgia', 'Times New Roman', serif;
}

html[data-theme="light"] .sentence-correct-text { color: #7c3aed; }

.sentence-explanation.is-correct .grammar-feedback-title { color: #34d399; }
.sentence-explanation.is-wrong .grammar-feedback-title { color: #f87171; }

/* 结果页 */
.vocab-game-page--sentence .vocab-game__end-title { color: #fff; }
.vocab-game-page--sentence .vocab-game__final-score { color: #a78bfa; }
.vocab-game-page--sentence .vocab-game__rating { color: rgba(255,255,255,0.7); }
.vocab-game-page--sentence .vocab-game__stat-value { color: #fff; }
.vocab-game-page--sentence .vocab-game__stat-label { color: rgba(255,255,255,0.5); }
.vocab-game-page--sentence .vocab-game__new-record { color: #fbbf24; }

html[data-theme="light"] .vocab-game-page--sentence .vocab-game__end-title { color: #312e81; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__final-score { color: #7c3aed; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__rating { color: #4b5563; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__stat-value { color: #312e81; }
html[data-theme="light"] .vocab-game-page--sentence .vocab-game__stat-label { color: #6b7280; }

/* ============================================================
   3. 同义词替换游戏 — 橙色系
   ============================================================ */

.vocab-game-page--synonym.synonym-game-page {
  --accent-color: #f97316;
  --accent-color-light: #fb923c;
  --accent-color-dark: #ea580c;
  background: linear-gradient(135deg, #431407 0%, #7c2d12 40%, #9a3412 100%);
  position: relative;
}

html[data-theme="light"] .vocab-game-page--synonym.synonym-game-page {
  background: linear-gradient(135deg, #FFF7ED 0%, #FFEDD5 40%, #FFFBEB 100%);
}

.vocab-game-page--synonym .vocab-game__title { color: #fff; }
.vocab-game-page--synonym .vocab-game__subtitle { color: rgba(255,255,255,0.6); }
.vocab-game-page--synonym .vocab-game__intro { color: rgba(255,255,255,0.75); }
.vocab-game-page--synonym .vocab-game__vocab-count { color: rgba(255,255,255,0.7); }
.vocab-game-page--synonym .vocab-game__vocab-count strong { color: #fb923c; }

html[data-theme="light"] .vocab-game-page--synonym .vocab-game__title { color: #7c2d12; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__subtitle { color: #6b7280; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__intro { color: #374151; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__vocab-count { color: #4b5563; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__vocab-count strong { color: #ea580c; }

.vocab-game-page--synonym .vocab-game__btn--primary {
  background: linear-gradient(135deg, #f97316 0%, #fb923c 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.4);
}
.vocab-game-page--synonym .vocab-game__btn--primary:hover {
  background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.5);
  transform: translateY(-1px);
}

.vocab-game-page--synonym .vocab-game__btn--outline {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.8);
}
.vocab-game-page--synonym .vocab-game__btn--outline:hover {
  background: rgba(255,255,255,0.14);
  color: #fff;
}

html[data-theme="light"] .vocab-game-page--synonym .vocab-game__btn--outline {
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(234, 88, 12, 0.3);
  color: #c2410c;
}
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__btn--outline:hover {
  background: rgba(249, 115, 22, 0.1);
  color: #9a3412;
}

.vocab-game-page--synonym .vocab-game__hud-label { color: rgba(255,255,255,0.5); }
.vocab-game-page--synonym .vocab-game__hud-value { color: #fff; }

html[data-theme="light"] .vocab-game-page--synonym .vocab-game__hud-label { color: #6b7280; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__hud-value { color: #7c2d12; }

.vocab-game-page--synonym .vocab-game__score { color: #fb923c; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__score { color: #ea580c; }

/* 基础词大字展示 */
.synonym-question-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  padding: 32px 28px;
  margin: 20px 0;
  text-align: center;
  position: relative;
}

html[data-theme="light"] .synonym-question-card {
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(234, 88, 12, 0.12);
}

.synonym-question-type {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: #fb923c;
  background: rgba(251, 146, 60, 0.15);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

html[data-theme="light"] .synonym-question-type {
  color: #ea580c;
  background: rgba(249, 115, 22, 0.12);
}

.synonym-base-word-label {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

html[data-theme="light"] .synonym-base-word-label { color: #9ca3af; }

.synonym-base-word {
  font-size: 56px;
  font-weight: 700;
  color: #fb923c;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-family: 'Georgia', 'Times New Roman', serif;
}

html[data-theme="light"] .synonym-base-word { color: #ea580c; }

@media (max-width: 480px) {
  .synonym-base-word { font-size: 42px; }
}

/* 选项 */
.vocab-game-page--synonym .vocab-game__option {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.85);
}
.vocab-game-page--synonym .vocab-game__option:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(251, 146, 60, 0.4);
}
.vocab-game-page--synonym .vocab-game__option.is-correct {
  background: rgba(249, 115, 22, 0.2);
  border-color: #f97316;
  color: #fb923c;
}
.vocab-game-page--synonym .vocab-game__option.is-wrong {
  background: rgba(248, 113, 113, 0.15);
  border-color: #f87171;
  color: #fca5a5;
}
.vocab-game-page--synonym .vocab-game__option.is-disabled {
  pointer-events: none;
  opacity: 0.6;
}
.vocab-game-page--synonym .vocab-game__option.is-disabled.is-correct,
.vocab-game-page--synonym .vocab-game__option.is-disabled.is-wrong {
  opacity: 1;
}
.vocab-game-page--synonym .vocab-game__option-label {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
}

html[data-theme="light"] .vocab-game-page--synonym .vocab-game__option {
  background: #fff;
  border: 1px solid rgba(234, 88, 12, 0.15);
  color: #1f2937;
}
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__option:hover {
  background: rgba(249, 115, 22, 0.06);
  border-color: rgba(234, 88, 12, 0.35);
}
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__option.is-correct {
  background: rgba(249, 115, 22, 0.12);
  border-color: #f97316;
  color: #c2410c;
}
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__option.is-wrong {
  background: rgba(248, 113, 113, 0.1);
  border-color: #f87171;
  color: #b91c1c;
}
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__option-label {
  background: rgba(234, 88, 12, 0.1);
  color: #c2410c;
}

/* 例句 */
.synonym-example {
  font-size: 15px;
  color: #fb923c;
  font-style: italic;
  font-family: 'Georgia', 'Times New Roman', serif;
  margin-bottom: 10px;
  line-height: 1.5;
}

html[data-theme="light"] .synonym-example { color: #ea580c; }

.synonym-explanation {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}

html[data-theme="light"] .synonym-explanation {
  background: rgba(255,255,255,0.95);
  border: 1px solid rgba(234, 88, 12, 0.12);
}

.synonym-explanation.is-correct .grammar-feedback-title { color: #34d399; }
.synonym-explanation.is-wrong .grammar-feedback-title { color: #f87171; }

/* 结果页 */
.vocab-game-page--synonym .vocab-game__end-title { color: #fff; }
.vocab-game-page--synonym .vocab-game__final-score { color: #fb923c; }
.vocab-game-page--synonym .vocab-game__rating { color: rgba(255,255,255,0.7); }
.vocab-game-page--synonym .vocab-game__stat-value { color: #fff; }
.vocab-game-page--synonym .vocab-game__stat-label { color: rgba(255,255,255,0.5); }
.vocab-game-page--synonym .vocab-game__new-record { color: #fbbf24; }

html[data-theme="light"] .vocab-game-page--synonym .vocab-game__end-title { color: #7c2d12; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__final-score { color: #ea580c; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__rating { color: #4b5563; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__stat-value { color: #7c2d12; }
html[data-theme="light"] .vocab-game-page--synonym .vocab-game__stat-label { color: #6b7280; }

/* 错题本页面（复用 premium-book 样式，覆盖浅色） */
.grammar-wrongbook-page .premium-book-page__title,
.sentence-wrongbook-page .premium-book-page__title,
.synonym-wrongbook-page .premium-book-page__title {
  color: #fff;
}

.grammar-wrongbook-page .premium-book-page__count,
.sentence-wrongbook-page .premium-book-page__count,
.synonym-wrongbook-page .premium-book-page__count {
  color: rgba(255,255,255,0.6);
}

.grammar-wrongbook-page .premium-word-item,
.sentence-wrongbook-page .premium-word-item,
.synonym-wrongbook-page .premium-word-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}

.grammar-wrongbook-page .premium-word-item:hover,
.sentence-wrongbook-page .premium-word-item:hover,
.synonym-wrongbook-page .premium-word-item:hover {
  background: rgba(255,255,255,0.1);
}

.grammar-wrongbook-page .premium-word-item__word,
.sentence-wrongbook-page .premium-word-item__word,
.synonym-wrongbook-page .premium-word-item__word {
  color: #fff;
}

.grammar-wrongbook-page .premium-word-item__meaning,
.sentence-wrongbook-page .premium-word-item__meaning,
.synonym-wrongbook-page .premium-word-item__meaning {
  color: rgba(255,255,255,0.65);
}

.grammar-wrongbook-page .premium-book-empty,
.sentence-wrongbook-page .premium-book-empty,
.synonym-wrongbook-page .premium-book-empty {
  color: rgba(255,255,255,0.5);
}

.grammar-wrongbook-page .premium-book-page__btn,
.sentence-wrongbook-page .premium-book-page__btn,
.synonym-wrongbook-page .premium-book-page__btn {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.8);
}

.grammar-wrongbook-page .premium-book-page__btn:hover,
.sentence-wrongbook-page .premium-book-page__btn:hover,
.synonym-wrongbook-page .premium-book-page__btn:hover {
  background: rgba(255,255,255,0.14);
  color: #fff;
}

/* 日光模式下的错题本 */
html[data-theme="light"] .grammar-wrongbook-page .premium-book-page__title,
html[data-theme="light"] .sentence-wrongbook-page .premium-book-page__title,
html[data-theme="light"] .synonym-wrongbook-page .premium-book-page__title {
  color: inherit;
}
html[data-theme="light"] .grammar-wrongbook-page .premium-book-page__count,
html[data-theme="light"] .sentence-wrongbook-page .premium-book-page__count,
html[data-theme="light"] .synonym-wrongbook-page .premium-book-page__count {
  color: #6b7280;
}
html[data-theme="light"] .grammar-wrongbook-page .premium-word-item,
html[data-theme="light"] .sentence-wrongbook-page .premium-word-item,
html[data-theme="light"] .synonym-wrongbook-page .premium-word-item {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
}
html[data-theme="light"] .grammar-wrongbook-page .premium-word-item:hover,
html[data-theme="light"] .sentence-wrongbook-page .premium-word-item:hover,
html[data-theme="light"] .synonym-wrongbook-page .premium-word-item:hover {
  background: #f9fafb;
}
html[data-theme="light"] .grammar-wrongbook-page .premium-word-item__word,
html[data-theme="light"] .sentence-wrongbook-page .premium-word-item__word,
html[data-theme="light"] .synonym-wrongbook-page .premium-word-item__word {
  color: #1f2937;
}
html[data-theme="light"] .grammar-wrongbook-page .premium-word-item__meaning,
html[data-theme="light"] .sentence-wrongbook-page .premium-word-item__meaning,
html[data-theme="light"] .synonym-wrongbook-page .premium-word-item__meaning {
  color: #4b5563;
}
html[data-theme="light"] .grammar-wrongbook-page .premium-book-empty,
html[data-theme="light"] .sentence-wrongbook-page .premium-book-empty,
html[data-theme="light"] .synonym-wrongbook-page .premium-book-empty {
  color: #9ca3af;
}
html[data-theme="light"] .grammar-wrongbook-page .premium-book-page__btn,
html[data-theme="light"] .sentence-wrongbook-page .premium-book-page__btn,
html[data-theme="light"] .synonym-wrongbook-page .premium-book-page__btn {
  background: #fff;
  border: 1px solid #e5e7eb;
  color: #374151;
}
html[data-theme="light"] .grammar-wrongbook-page .premium-book-page__btn:hover,
html[data-theme="light"] .sentence-wrongbook-page .premium-book-page__btn:hover,
html[data-theme="light"] .synonym-wrongbook-page .premium-book-page__btn:hover {
  background: #f9fafb;
  color: #1f2937;
}

/* ========== 同义词挑战新增样式 ========== */

/* 倒计时进度条 */
.sy-timer-bar-wrap {
  width: 100%;
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 999px;
  overflow: hidden;
  margin: 0 0 20px 0;
}

html[data-theme="light"] .sy-timer-bar-wrap {
  background: rgba(234, 88, 12, 0.1);
}

.sy-timer-bar {
  height: 100%;
  background: linear-gradient(90deg, #fb923c 0%, #f97316 100%);
  border-radius: 999px;
  transition: width 1s linear, background 0.3s ease;
}

.sy-timer-bar.is-low {
  background: linear-gradient(90deg, #f87171 0%, #ef4444 100%);
  animation: sy-timer-pulse 0.5s ease-in-out infinite alternate;
}

@keyframes sy-timer-pulse {
  from { opacity: 0.7; }
  to { opacity: 1; }
}

/* 连击加分特效 */
.sy-combo-bonus {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.5);
  font-size: 48px;
  font-weight: 800;
  color: #fbbf24;
  text-shadow: 0 2px 20px rgba(251, 191, 36, 0.6);
  opacity: 0;
  pointer-events: none;
  z-index: 100;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.sy-combo-bonus.is-visible {
  animation: sy-combo-pop 0.8s ease-out forwards;
}

@keyframes sy-combo-pop {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  30% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
  60% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -80%) scale(0.9); }
}

/* 免费徽章 */
.vocab-game__free-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #16a34a;
  background: rgba(22, 163, 74, 0.15);
  border: 1px solid rgba(22, 163, 74, 0.3);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

html[data-theme="light"] .vocab-game__free-badge {
  color: #15803d;
  background: rgba(22, 163, 74, 0.1);
  border-color: rgba(22, 163, 74, 0.25);
}

/* 免责声明 */
.vocab-game__disclaimer {
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 16px;
  text-align: center;
}

html[data-theme="light"] .vocab-game__disclaimer {
  color: #9ca3af;
}

/* 题目提示 */
.synonym-hint {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-top: 16px;
  letter-spacing: 0.02em;
}

html[data-theme="light"] .synonym-hint {
  color: #9ca3af;
}

/* 正确答案行 */
.synonym-correct-line {
  margin-bottom: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

html[data-theme="light"] .synonym-correct-line {
  color: #4b5563;
}

.synonym-correct-line strong {
  color: #fb923c;
  font-weight: 600;
}

html[data-theme="light"] .synonym-correct-line strong {
  color: #ea580c;
}

/* 退出挑战按钮 */
.sy-quit-wrap {
  display: flex;
  justify-content: center;
  margin-top: 16px;
}

.sy-quit-btn {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.4);
  font-size: 13px;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.sy-quit-btn:hover {
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.06);
}

html[data-theme="light"] .sy-quit-btn {
  color: #9ca3af;
}

html[data-theme="light"] .sy-quit-btn:hover {
  color: #4b5563;
  background: rgba(0,0,0,0.04);
}

/* 连击 HUD 样式 */
.vocab-game-page--synonym .vocab-game__combo {
  color: #fbbf24;
  transition: transform 0.2s ease;
}

html[data-theme="light"] .vocab-game-page--synonym .vocab-game__combo {
  color: #d97706;
}

/* 倒计时 HUD 时间低时 */
.vocab-game-page--synonym .vocab-game__time.is-low {
  color: #f87171;
  animation: sy-time-pulse 1s ease-in-out infinite alternate;
}

html[data-theme="light"] .vocab-game-page--synonym .vocab-game__time.is-low {
  color: #dc2626;
}

@keyframes sy-time-pulse {
  from { transform: scale(1); }
  to { transform: scale(1.08); }
}