/* ===== 岐黄探案 — 完整样式 ===== */
:root {
  --primary: #8B2500;
  --primary-light: #C45C3A;
  --primary-dark: #5C1A00;
  --accent: #D4A847;
  --accent-light: #F0D68A;
  --bg: #FBF6EF;
  --card-bg: #FFFFFF;
  --text: #3D2B1F;
  --text-light: #7A6B5F;
  --text-muted: #A89888;
  --success: #2E7D32;
  --error: #C62828;
  --border: #E8DDD0;
  --shadow: 0 2px 12px rgba(61, 43, 31, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
#app {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 16px 40px;
}

/* 顶部 */
#app-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  position: sticky; top: 0; background: var(--bg); z-index: 10;
}
.logo { font-size: 20px; font-weight: 700; color: var(--primary); }
.header-right { display: flex; gap: 8px; }
.icon-btn {
  background: none; border: 1px solid var(--border);
  border-radius: var(--radius-sm); font-size: 18px;
  padding: 6px 10px 2px; cursor: pointer; transition: background 0.2s;
}
.icon-btn:hover { background: var(--accent-light); }

/* 导航按钮图标 + 文字标签 */
.nav-item {
  display: flex; flex-direction: column; align-items: center; gap: 1px;
}
.nav-label {
  font-size: 10px; color: var(--text-muted); line-height: 1.2;
  white-space: nowrap; user-select: none;
}

/* ===== 屏幕切换 ===== */
.screen { display: none; }
.screen.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ===== 首页 ===== */
.home-hero { text-align: center; padding: 40px 0 20px; }
.hero-icon { font-size: 64px; margin-bottom: 12px; }
.home-hero h2 { font-size: 26px; color: var(--primary); margin-bottom: 8px; }
.hero-desc { color: var(--text-light); font-size: 15px; margin-bottom: 24px; max-width: 360px; margin: 0 auto 24px; }
.home-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 28px; align-items: center; }
.feature-item {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 8px 16px; font-size: 14px; color: var(--text-light); width: fit-content;
}
.home-resume { margin-top: 12px; font-size: 13px; color: var(--text-muted); }
.home-resume.hidden { display: none; }

/* ===== 按钮 ===== */
.primary-btn {
  background: var(--primary); color: white; border: none;
  border-radius: var(--radius); padding: 14px 36px; font-size: 17px;
  font-weight: 600; cursor: pointer; transition: background 0.2s, transform 0.1s; display: inline-block;
}
.primary-btn:hover { background: var(--primary-light); }
.primary-btn:active { transform: scale(0.97); }
.secondary-btn {
  background: var(--card-bg); color: var(--primary);
  border: 2px solid var(--primary); border-radius: var(--radius);
  padding: 10px 28px; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: background 0.2s;
}
.secondary-btn:hover { background: var(--accent-light); }
.secondary-btn:disabled { opacity: 0.4; cursor: default; }
.text-btn { background: none; border: none; color: var(--text-muted); font-size: 14px; cursor: pointer; padding: 8px; text-decoration: underline; text-underline-offset: 3px; }
.text-btn:hover { color: var(--text-light); }

/* ===== 案例展示 ===== */
.case-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.case-badge { background: var(--primary); color: white; border-radius: 20px; padding: 4px 14px; font-size: 13px; font-weight: 600; }
.difficulty-badge { font-size: 18px; }
.case-card { background: var(--card-bg); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 16px; }
.case-card h3 { font-size: 20px; color: var(--primary); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 2px solid var(--accent-light); }
.info-section { margin-bottom: 14px; }
.info-section h4 { font-size: 13px; color: var(--text-muted); margin-bottom: 4px; font-weight: 600; }
.info-section p { font-size: 15px; line-height: 1.7; }
.info-row { display: flex; gap: 12px; }
.info-section.half { flex: 1; margin-bottom: 14px; }
.symptom-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.symptom-tags span { background: var(--accent-light); color: var(--text); border-radius: 20px; padding: 3px 12px; font-size: 13px; }
#btn-begin-step { width: 100%; margin-top: 4px; }

/* ===== 诊断卡 ===== */
.diagnosis-card {
  background: var(--card-bg);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.dc-header {
  font-size: 15px; font-weight: 700; color: var(--primary);
  margin-bottom: 10px; padding-bottom: 8px;
  border-bottom: 1px solid var(--accent-light);
}
.dc-rows { display: flex; flex-direction: column; gap: 6px; }
.dc-row {
  display: flex; align-items: center;
  padding: 6px 10px; border-radius: var(--radius-sm);
  background: var(--bg); gap: 6px;
  transition: background 0.3s;
}
.dc-row.active { background: #FFF8F0; border: 1px solid var(--accent); }
.dc-row.done { background: #F1F8E9; }
.dc-num { font-size: 13px; font-weight: 700; color: var(--text-muted); min-width: 22px; }
.dc-label { font-size: 14px; color: var(--text-light); min-width: 56px; }
.dc-value { font-size: 14px; font-weight: 600; color: var(--text); flex: 1; }
.dc-value.empty { color: var(--text-muted); font-weight: 400; }
.dc-status { font-size: 14px; min-width: 20px; text-align: center; }

/* ===== 推理步骤 ===== */
.step-question-area {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); margin-bottom: 12px;
}
.step-question-area h3 { font-size: 18px; margin-bottom: 16px; color: var(--text); }
.options-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.option-btn {
  background: var(--bg); border: 2px solid var(--border);
  border-radius: var(--radius-sm); padding: 14px 12px;
  font-size: 15px; cursor: pointer; transition: all 0.25s;
  text-align: center; font-weight: 500; color: var(--text); line-height: 1.3;
}
.option-btn:hover { border-color: var(--primary-light); background: #FFF8F0; }
.option-btn.selected { border-color: var(--primary); background: #FFF0E8; }
.option-btn.correct {
  border-color: var(--success); background: #E8F5E9;
  color: var(--success); cursor: default;
}
.option-btn.excluded {
  border-color: var(--border); background: #F5F0EB;
  color: var(--text-muted); text-decoration: line-through;
  cursor: default; opacity: 0.6;
}
.option-btn.excluded::after {
  content: " ✗"; color: var(--error); font-weight: 700;
}
.option-btn:disabled { cursor: default; }

/* ===== 排除提示 ===== */
.excluded-hint {
  margin-top: 10px; padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: 13px; line-height: 1.6; color: var(--text-light);
  background: #FFF8F0; border: 1px solid var(--accent-light);
}
.excluded-hint.hidden { display: none; }

/* ===== 反馈区域 ===== */
.feedback-area {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 16px 20px; box-shadow: var(--shadow); margin-bottom: 12px;
  border-left: 4px solid var(--success); animation: slideIn 0.3s ease;
}
.feedback-area.hidden { display: none; }
.feedback-icon { font-size: 24px; margin-bottom: 6px; }
.feedback-text { font-size: 14px; line-height: 1.7; color: var(--text); margin-bottom: 12px; }
@keyframes slideIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

/* ===== 方剂对比表 ===== */
.comparison-area {
  margin-top: 12px; overflow-x: auto;
}
.comparison-area.hidden { display: none; }
.comparison-table {
  width: 100%; border-collapse: collapse;
  font-size: 13px; line-height: 1.5;
  min-width: 400px;
}
.comparison-table th {
  background: var(--primary); color: white; padding: 8px 10px;
  text-align: left; font-weight: 600; white-space: nowrap;
}
.comparison-table th:first-child { border-radius: 6px 0 0 0; }
.comparison-table th:last-child { border-radius: 0 6px 0 0; }
.comparison-table td {
  padding: 7px 10px; border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.comparison-table tr:nth-child(even) td { background: var(--bg); }
.comparison-table .highlight-row td {
  background: #E8F5E9 !important; font-weight: 600;
}
.comparison-table .highlight-row td:first-child { color: var(--success); }

/* ===== 步骤导航按钮 ===== */
.step-nav-buttons {
  display: flex; gap: 10px; justify-content: center;
  margin-top: 4px;
}
.step-nav-buttons button { flex: 1; max-width: 200px; }

/* ===== 总结 ===== */
.summary-banner { text-align: center; padding: 20px 0 8px; }
.summary-icon { font-size: 48px; display: block; margin-bottom: 4px; }
.summary-banner h3 { font-size: 22px; color: var(--primary); }
.summary-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 16px 20px; box-shadow: var(--shadow); margin-bottom: 12px;
}
.summary-card h4 { font-size: 16px; margin-bottom: 6px; }
.summary-card h4:last-child { margin-bottom: 0; }
.shanghan-card {
  margin-top: 10px; padding: 10px 14px; font-size: 13px; line-height: 1.8;
  background: #FFF8F0; border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm); color: var(--text);
}
.shanghan-card.hidden { display: none; }
.summary-details { margin-bottom: 12px; }
.summary-section {
  background: var(--card-bg); border-radius: var(--radius-sm);
  margin-bottom: 8px; box-shadow: var(--shadow); overflow: hidden;
}
.summary-section summary {
  padding: 12px 16px; font-weight: 600; font-size: 15px;
  cursor: pointer; color: var(--primary); user-select: none;
}
.summary-section summary:hover { background: #FFF8F0; }
.herb-tip { font-weight: 400; font-size: 12px; color: var(--text-muted); margin-left: 8px; }
.summary-section[open] summary { border-bottom: 1px solid var(--border); }
.summary-section p { padding: 12px 16px; font-size: 14px; line-height: 1.8; }

/* 药物详解 - 可点击 */
#herb-list { padding: 8px 16px 16px; }
.herb-item {
  display: flex; padding: 8px 0;
  border-bottom: 1px solid var(--border); gap: 10px; align-items: flex-start;
}
.herb-item:last-child { border-bottom: none; }
.herb-role {
  background: var(--accent-light); border-radius: 4px;
  padding: 1px 8px; font-size: 12px; font-weight: 600;
  color: var(--primary); white-space: nowrap; min-width: 28px; text-align: center;
}
.herb-name { font-weight: 600; font-size: 15px; min-width: 56px; cursor: pointer; }
.herb-name:hover { color: var(--primary-light); text-decoration: underline; }
.herb-detail { font-size: 13px; color: var(--text-light); flex: 1; }

/* ===== 口诀记忆卡 ===== */
.mnemonic-card {
  background: linear-gradient(135deg, #FFF8F0, #FFF0E8);
  border: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.mnemonic-card.hidden { display: none; }
.mnemonic-header {
  font-size: 15px; font-weight: 700; color: var(--primary);
  margin-bottom: 10px;
}
.mnemonic-short {
  font-size: 22px; font-weight: 700; color: var(--primary-dark);
  letter-spacing: 4px; margin-bottom: 8px;
  padding: 8px 12px; background: rgba(212, 168, 71, 0.15);
  border-radius: var(--radius-sm); text-align: center;
}
.mnemonic-song {
  font-size: 15px; color: var(--text); line-height: 1.8;
  padding: 6px 0; font-style: italic;
}

.summary-steps-review {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 16px 20px; box-shadow: var(--shadow); margin-bottom: 12px;
}
.summary-steps-review h4 { font-size: 15px; margin-bottom: 10px; color: var(--text-light); }
.review-item {
  display: flex; justify-content: space-between;
  padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 14px;
}
.review-item:last-child { border-bottom: none; }
.review-item .review-step-label { color: var(--text-light); }
.review-item .review-answer { font-weight: 600; }
.review-item .review-answer.correct { color: var(--success); }
.review-item .review-answer.wrong { color: var(--error); }
.summary-actions {
  display: flex; flex-direction: column; gap: 8px; align-items: center; padding: 8px 0 20px;
}

/* ===== 案例选择 ===== */
#screen-case-select h2 { font-size: 22px; color: var(--primary); margin-bottom: 16px; }
.case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.case-card-btn {
  background: var(--card-bg); border: 2px solid var(--border);
  border-radius: var(--radius); padding: 14px 12px;
  cursor: pointer; transition: all 0.2s; text-align: center;
}
.case-card-btn:hover { border-color: var(--primary-light); transform: translateY(-2px); }
.case-card-btn .cc-title { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.case-card-btn .cc-diff { font-size: 12px; }
.case-card-btn .cc-status { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.case-card-btn.done { border-color: var(--success); background: #F1F8E9; }
.case-card-btn.done .cc-status { color: var(--success); }
.case-card-btn.focus { border-color: var(--primary); }

/* ===== 进度 ===== */
#screen-progress h2 { font-size: 22px; color: var(--primary); margin-bottom: 16px; }
.stats-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.stat-card { background: var(--card-bg); border-radius: var(--radius); padding: 20px; text-align: center; box-shadow: var(--shadow); }
.stat-number { display: block; font-size: 36px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 13px; color: var(--text-muted); }
.progress-detail-chart { background: var(--card-bg); border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); margin-bottom: 12px; }
.progress-detail-chart h4 { font-size: 15px; margin-bottom: 12px; }
.step-bar-row { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.step-bar-label { font-size: 13px; width: 56px; flex-shrink: 0; color: var(--text-light); }
.step-bar-track { flex: 1; height: 16px; background: var(--border); border-radius: 8px; overflow: hidden; }
.step-bar-fill { height: 100%; background: var(--primary); border-radius: 8px; transition: width 0.5s; }
.step-bar-pct { font-size: 13px; width: 40px; text-align: right; color: var(--text-light); }
.case-list { background: var(--card-bg); border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); margin-bottom: 16px; }
.case-list h4 { font-size: 15px; margin-bottom: 10px; }
.case-status-item { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.case-status-item:last-child { border-bottom: none; }
.case-status-badge { font-size: 12px; padding: 1px 8px; border-radius: 10px; font-weight: 600; }
.case-status-badge.done { background: #E8F5E9; color: var(--success); }
.case-status-badge.pending { background: var(--border); color: var(--text-muted); }

/* ===== 草药弹窗 ===== */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.4); z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  animation: fadeIn 0.2s ease;
}
.modal-overlay.hidden { display: none; }
.modal-content {
  background: var(--card-bg); border-radius: var(--radius);
  max-width: 360px; width: 90%; padding: 24px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  position: relative; animation: slideUp 0.25s ease;
}
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.modal-close {
  position: absolute; top: 12px; right: 14px;
  background: none; border: none; font-size: 20px;
  cursor: pointer; color: var(--text-muted); padding: 4px;
}
.modal-close:hover { color: var(--text); }
.modal-body h3 {
  font-size: 20px; color: var(--primary);
  margin-bottom: 16px; padding-bottom: 10px;
  border-bottom: 2px solid var(--accent-light);
}
.herb-detail-grid {
  display: grid; grid-template-columns: 56px 1fr;
  gap: 10px 12px;
}
.herb-dt { font-size: 13px; font-weight: 600; color: var(--text-muted); }
.herb-dd { font-size: 14px; line-height: 1.6; }

/* ===== 反向推理练习 ===== */
.rev-header { text-align: center; padding: 4px 0 8px; }
.rev-header h2 { font-size: 22px; color: var(--primary); margin-bottom: 4px; }
.rev-subtitle { font-size: 14px; color: var(--text-light); }
.rev-formula-card {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white; border-radius: var(--radius); padding: 16px 20px;
  margin-bottom: 12px; text-align: center;
}
.rev-formula-card h3 { font-size: 22px; margin-bottom: 6px; }
.rev-herbs { font-size: 14px; opacity: 0.9; }
.rev-instruction { font-size: 14px; color: var(--text-muted); margin-bottom: 12px; text-align: center; }
.rev-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 14px; }
.rev-item {
  background: var(--card-bg); border: 2px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 14px;
  font-size: 14px; cursor: pointer; transition: all 0.2s;
  text-align: left; line-height: 1.5; user-select: none;
}
.rev-item:hover { border-color: var(--primary-light); background: #FFF8F0; }
.rev-item.selected { border-color: var(--primary); background: #FFF0E8; }
.rev-item.correct {
  border-color: var(--success) !important; background: #E8F5E9 !important; cursor: default;
}
.rev-item.correct::after { content: " ✅"; color: var(--success); font-weight: 700; }
.rev-item.wrong {
  border-color: var(--error) !important; background: #FFEBEE !important; cursor: default;
}
.rev-item.wrong::after { content: " ❌"; color: var(--error); font-weight: 700; }
.rev-item.missed {
  border-color: var(--accent) !important; background: #FFF8F0 !important;
  border-style: dashed !important; cursor: default;
}
.rev-item.missed::after { content: " ⚠️ 应选"; color: var(--accent); font-weight: 700; }
.rev-item:disabled { cursor: default; }

#rev-submit { width: 100%; margin-bottom: 12px; }
#rev-submit.hidden { display: none; }

/* 方剂选择网格 */
.rev-formula-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.rev-fcard {
  background: var(--card-bg); border: 2px solid var(--border);
  border-radius: var(--radius); padding: 16px 12px;
  text-align: center; cursor: pointer;
  transition: all 0.2s;
}
.rev-fcard:hover:not(.locked) { border-color: var(--primary-light); transform: translateY(-2px); }
.rev-fcard .rf-name { font-size: 15px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.rev-fcard .rf-diff { font-size: 12px; margin-bottom: 4px; }
.rev-fcard .rf-status { font-size: 12px; color: var(--text-muted); }
.rev-fcard.locked { opacity: 0.5; cursor: default; }
.rev-fcard.locked .rf-name { color: var(--text-muted); }
.rev-fcard.unlocked { border-color: var(--success); }
.rev-fcard.unlocked .rf-status { color: var(--success); }
.rev-fcard.partial { border-color: var(--accent); }
.rev-fcard.partial .rf-status { color: var(--accent); }

#rev-select-mode.hidden, #rev-practice-mode.hidden { display: none; }

.rev-result { background: var(--card-bg); border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow); margin-bottom: 12px; }
.rev-result.hidden { display: none; }
.rev-score { font-size: 20px; font-weight: 700; color: var(--primary); text-align: center; margin-bottom: 10px; }
.rev-detail { font-size: 13px; line-height: 1.7; }
.rev-detail .detail-item { padding: 6px 0; border-bottom: 1px solid var(--border); }
.rev-detail .detail-item:last-child { border-bottom: none; }
.rev-detail .detail-correct { color: var(--success); }
.rev-detail .detail-wrong { color: var(--error); }

/* ===== 错题重练 ===== */
#screen-review h2 { font-size: 22px; color: var(--primary); margin-bottom: 16px; }
.review-case-block { background: var(--card-bg); border-radius: var(--radius); padding: 16px; margin-bottom: 12px; box-shadow: var(--shadow); }
.review-case-title { font-size: 15px; font-weight: 700; color: var(--primary); margin-bottom: 8px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
.review-wrong-item { padding: 8px 0; border-bottom: 1px solid var(--border); }
.review-wrong-item:last-child { border-bottom: none; }
.review-wrong-step { font-size: 13px; font-weight: 600; color: var(--accent); margin-bottom: 4px; }
.review-wrong-choice { font-size: 14px; margin-bottom: 2px; }
.review-wrong-correct { font-size: 14px; }
.rw-wrong { color: var(--error); font-weight: 600; }
.rw-correct { color: var(--success); font-weight: 600; }
.review-empty { text-align: center; padding: 40px; color: var(--text-muted); font-size: 16px; }

/* ===== 证型速查图谱 ===== */
#screen-reference h2 { font-size: 22px; color: var(--primary); margin-bottom: 4px; }
.ref-section { background: var(--card-bg); border-radius: var(--radius); margin-bottom: 8px; box-shadow: var(--shadow); overflow: hidden; }
.ref-section summary { padding: 12px 16px; font-weight: 700; font-size: 16px; cursor: pointer; color: var(--primary); user-select: none; display: flex; align-items: center; justify-content: space-between; }
.ref-section summary:hover { background: #FFF8F0; }
.ref-section[open] summary { border-bottom: 1px solid var(--border); }
.ref-count { font-size: 12px; font-weight: 400; color: var(--text-muted); }
.ref-cards { padding: 8px 12px 12px; }
.ref-card { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px; margin-bottom: 8px; }
.ref-card:last-child { margin-bottom: 0; }
.ref-card.ref-empty { background: var(--bg); }
.ref-pattern { font-size: 15px; font-weight: 700; color: var(--primary-dark); margin-bottom: 6px; }
.ref-grid { display: grid; grid-template-columns: 48px 1fr; gap: 4px 8px; font-size: 13px; }
.ref-label { color: var(--text-muted); font-weight: 600; }
.ref-val { color: var(--text); line-height: 1.5; }
.ref-extra { font-size: 13px; color: var(--text-light); margin-bottom: 2px; }

/* ===== 筛选栏 ===== */
.filter-bar { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.filter-btn { background: var(--card-bg); border: 1px solid var(--border); border-radius: 20px; padding: 6px 14px; font-size: 13px; cursor: pointer; transition: all 0.2s; }
.filter-btn:hover { border-color: var(--primary-light); }
.filter-btn.active { background: var(--primary); color: white; border-color: var(--primary); }
.filter-btn.random-btn { margin-left: auto; font-size: 14px; }

/* ===== 决策对比标签 ===== */
.cmp-step-label { font-size: 15px; color: var(--text-light); text-align: center; margin-bottom: 12px; font-weight: 600; }

/* 方剂对比 — 六经分组 */
.cmp-section { margin-bottom: 16px; }
.cmp-section-title {
  font-size: 14px; font-weight: 700; color: var(--primary);
  padding: 6px 12px; margin-bottom: 8px;
  background: var(--accent-light); border-radius: var(--radius-sm);
  cursor: pointer; user-select: none;
}
.cmp-section-title:hover { background: #F0D68A; }
.cmp-toggle { font-size: 11px; margin-right: 4px; }
.cmp-section-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

/* 方剂对比弹窗 */
.cmp-modal-content { max-width: 480px; max-height: 80vh; overflow-y: auto; }

/* ===== 鉴误 ===== */
.jiwu-toolbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; padding: 8px 12px;
  background: var(--card-bg); border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}
.jiwu-filter {
  font-size: 13px; color: var(--text-light);
  display: flex; align-items: center; gap: 6px; cursor: pointer;
}
.jiwu-filter input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; }
.jiwu-item {
  display: flex; flex-wrap: wrap; align-items: flex-start;
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  gap: 8px; position: relative;
}
.jiwu-item:last-child { border-bottom: none; }
.jiwu-item.jiwu-mastered { opacity: 0.5; background: #F1F8E9; }
.jiwu-item-main { flex: 1; min-width: 0; }
.jiwu-step { font-size: 13px; font-weight: 600; color: var(--accent); margin-bottom: 4px; }
.jiwu-choice { font-size: 14px; margin-bottom: 2px; }
.jiwu-correct { font-size: 14px; margin-bottom: 4px; }
.jiwu-actions {
  display: flex; gap: 4px; align-items: flex-start;
  flex-shrink: 0;
}
.jiwu-actions button {
  background: none; border: 1px solid var(--border);
  border-radius: 4px; padding: 4px 8px; font-size: 14px;
  cursor: pointer; transition: background 0.2s;
}
.jiwu-actions button:hover { background: var(--accent-light); }
.jiwu-btn-practice {
  width: 100%; text-align: right; font-size: 12px; margin-top: -4px;
}

/* ===== 证型检索 ===== */
.ref-search-bar {
  display: flex; gap: 4px; align-items: center;
  margin-bottom: 8px;
}
.ref-search-input {
  flex: 1; padding: 8px 12px; font-size: 14px;
  border: 2px solid var(--border); border-radius: var(--radius-sm);
  outline: none; background: var(--card-bg);
  color: var(--text); transition: border-color 0.2s;
}
.ref-search-input:focus { border-color: var(--primary-light); }
.ref-search-clear {
  background: none; border: none; font-size: 16px;
  cursor: pointer; color: var(--text-muted); padding: 4px 8px;
}
.ref-search-clear.hidden { display: none; }
.ref-search-clear:hover { color: var(--text); }
.ref-search-empty {
  text-align: center; padding: 40px; color: var(--text-muted); font-size: 15px;
}
.ref-search-summary {
  font-size: 14px; color: var(--text-light); margin-bottom: 10px;
  padding: 6px 12px; background: var(--card-bg);
  border-radius: var(--radius-sm); box-shadow: var(--shadow);
}
.ref-search-card { margin-bottom: 10px; }
.ref-search-meta { margin-bottom: 6px; }
.ref-search-meridian {
  display: inline-block; font-size: 11px; font-weight: 600;
  color: white; background: var(--primary-light);
  padding: 2px 8px; border-radius: 10px;
}
.ref-search-advice {
  margin-top: 8px; padding: 6px 10px; font-size: 13px;
  background: #FFF8F0; border-radius: var(--radius-sm);
  color: var(--text-light); line-height: 1.5;
}
.ref-highlight {
  background: #FFE082; padding: 1px 2px; border-radius: 2px;
}

/* ===== 响应式 ===== */
@media (max-width: 480px) {
  .options-grid { grid-template-columns: 1fr; }
  .info-row { flex-direction: column; }
  .stats-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .rev-grid { grid-template-columns: 1fr; }
  .rev-formula-grid { grid-template-columns: 1fr; }
  .cmp-section-grid { grid-template-columns: 1fr; }
}