/* ============================================================
 * style_ext.css —— 扩展样式（主题/章节/搜索/图鉴/记录/关于）
 * 与主样式解耦，便于未来微调
 * ============================================================ */

/* ============== 章节标题 ============== */
.section-title {
  position: relative;
  margin: 28px 0 14px;
  padding-left: 14px;
  color: var(--c-ink, #2b2118);
  font-family: var(--f-title, serif);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.18em;
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0; top: 4px; bottom: 4px;
  width: 4px;
  background: linear-gradient(180deg, var(--c-green-soft, #5d7c5e), var(--c-cinnabar, #c94740));
  border-radius: 2px;
}

/* ============== 首页搜索框 ============== */
.home-search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  padding: 12px 14px;
  background: rgba(255, 252, 244, 0.85);
  border: 1px solid rgba(58, 95, 61, 0.18);
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(58, 95, 61, 0.06);
  color: var(--c-ink-soft, #7d6f5e);
  transition: all 0.25s ease;
}
.home-search:focus-within {
  border-color: var(--c-green-soft, #5d7c5e);
  box-shadow: 0 6px 20px rgba(58, 95, 61, 0.12);
  transform: translateY(-1px);
}
.home-search input {
  flex: 1;
  border: 0;
  background: transparent;
  outline: none;
  font-family: var(--f-body, serif);
  font-size: 14px;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.05em;
}
.home-search input::placeholder { color: var(--c-ink-soft, #a89a86); }

/* ============== 首页统计 3 卡 ============== */
.home-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 0 0 24px;
}
.home-stat {
  display: flex; flex-direction: column; align-items: center;
  padding: 14px 6px;
  background: rgba(255, 252, 244, 0.7);
  border: 1px solid rgba(58, 95, 61, 0.12);
  border-radius: 12px;
}
.home-stat-num {
  font-family: var(--f-title, serif);
  font-size: 24px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  line-height: 1;
}
.home-stat-lbl {
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-ink-soft, #7d6f5e);
}

/* ============== 主题网格（首页） ============== */
/* 2026-11-05：固定 3 個主題，窄屏也排成一列，避免 2+1 留空格 */
.themes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0 0 24px;
}
.theme-card {
  position: relative;
  display: block;
  text-decoration: none;
  background: #fffaf0;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0,0,0,0.06);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s;
  border: 1px solid rgba(0,0,0,0.04);
  color: inherit;
}
.theme-card:active {
  transform: scale(0.98);
}
.theme-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.1);
}
.theme-cover {
  position: relative;
  height: 86px;
  background: var(--tb, rgba(58,95,61,0.08));
  overflow: hidden;
}
.theme-icon {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--f-title, serif);
  font-size: 64px; font-weight: 900;
  color: var(--tc, #3A5F3D);
  opacity: 0.18;
  z-index: 1;
  line-height: 1;
  text-shadow: 0 0 0 currentColor;
}
.theme-mountain {
  position: absolute; left: 0; right: 0; bottom: 0;
  width: 100%; height: 56px;
  z-index: 2;
}
.theme-body { padding: 12px 14px 14px; }
.theme-name {
  font-family: var(--f-title, serif);
  font-size: 17px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.12em;
}
.theme-desc {
  margin: 4px 0 8px;
  font-size: 12px;
  color: var(--c-ink-soft, #7d6f5e);
  letter-spacing: 0.05em;
}
.theme-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
  letter-spacing: 0.05em;
}
.theme-stat { opacity: 0.85; }
.theme-progress {
  font-weight: 700;
  color: var(--tc, #3A5F3D);
}
.theme-progress-bar {
  margin-top: 6px;
  height: 3px;
  background: rgba(0,0,0,0.06);
  border-radius: 2px;
  overflow: hidden;
}
.theme-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--tc, #3A5F3D), var(--ta, #7FA77D));
  transition: width 0.6s ease;
}

/* ============== 主题列表页（横向卡片） ============== */
.themes-list {
  margin: 16px 0;
  display: flex; flex-direction: column; gap: 12px;
}
.theme-row {
  display: flex; align-items: center; gap: 14px;
  padding: 14px;
  background: rgba(255, 250, 240, 0.85);
  border-radius: 14px;
  border-left: 4px solid var(--tc, #3A5F3D);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.theme-row:active { transform: scale(0.99); }
.theme-row-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--tb, rgba(58,95,61,0.08));
  color: var(--tc, #3A5F3D);
  font-family: var(--f-title, serif);
  font-size: 26px; font-weight: 900;
  border-radius: 12px;
}
.theme-row-body { flex: 1; min-width: 0; }
.theme-row-name {
  font-family: var(--f-title, serif);
  font-size: 16px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.1em;
}
.theme-row-desc {
  margin: 2px 0 4px;
  font-size: 12px;
  color: var(--c-ink-soft, #7d6f5e);
}
.theme-row-meta {
  display: flex; gap: 12px; align-items: center;
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
}
.theme-row-progress {
  font-weight: 700;
  color: var(--tc, #3A5F3D);
}
.theme-row-arrow {
  font-size: 24px;
  color: var(--c-ink-soft, #a89a86);
}

/* ============== 主题详情页 ============== */
.theme-page { padding-bottom: 20px; }
.theme-hero {
  position: relative;
  margin: 16px 0 24px;
  padding: 28px 20px 22px;
  text-align: center;
  background: linear-gradient(180deg, var(--tb, rgba(58,95,61,0.08)) 0%, transparent 100%);
  border-radius: 18px;
  overflow: hidden;
}
.theme-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 0%, var(--tb, transparent) 0%, transparent 60%),
    var(--tb, transparent);
  z-index: 0;
}
.theme-hero-icon {
  position: relative;
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 64px; height: 64px;
  background: #fffaf0;
  color: var(--tc, #3A5F3D);
  font-family: var(--f-title, serif);
  font-size: 36px; font-weight: 900;
  border-radius: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  z-index: 1;
}
.theme-hero-name {
  position: relative;
  margin: 12px 0 4px;
  font-family: var(--f-title, serif);
  font-size: 22px; font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-ink, #2b2118);
  z-index: 1;
}
.theme-hero-desc {
  position: relative;
  margin: 4px 0 8px;
  font-size: 13px;
  color: var(--c-ink-soft, #7d6f5e);
  letter-spacing: 0.1em;
  z-index: 1;
}
.theme-hero-meta {
  position: relative;
  font-size: 12px;
  color: var(--c-ink-soft, #7d6f5e);
  z-index: 1;
}

/* ============== 章节网格 ============== */
.chapters-grid {
  display: flex; flex-direction: column;
  gap: 14px;
  margin: 0 16px 24px;
}
.chapter-card {
  position: relative;
  display: block;
  padding: 18px 16px 16px;
  text-decoration: none;
  background: #fffaf0;
  border-radius: 14px;
  border-left: 5px solid var(--tc, #3A5F3D);
  box-shadow: 0 3px 12px rgba(0,0,0,0.05);
  transition: all 0.25s;
  color: inherit;
  overflow: hidden;
}
.chapter-card:active { transform: scale(0.99); }
.chapter-card.locked {
  opacity: 0.55;
  background: rgba(255, 250, 240, 0.6);
  pointer-events: auto;
}
.chapter-card .lock-icon {
  position: absolute; right: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--c-ink-soft, #a89a86);
  opacity: 0.6;
}
.chapter-no {
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--tc, #3A5F3D);
  font-weight: 700;
}
.chapter-name {
  margin: 6px 0 4px;
  font-family: var(--f-title, serif);
  font-size: 18px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.1em;
}
.chapter-desc {
  font-size: 12px;
  color: var(--c-ink-soft, #7d6f5e);
  letter-spacing: 0.05em;
}
.chapter-meta {
  margin-top: 10px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
}
.chapter-progress {
  font-weight: 700;
  color: var(--tc, #3A5F3D);
}
.chapter-progress-bar {
  margin-top: 6px;
  height: 3px;
  background: rgba(0,0,0,0.06);
  border-radius: 2px;
  overflow: hidden;
}
.chapter-progress-bar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--tc, #3A5F3D), var(--ta, #7FA77D));
  transition: width 0.6s;
}

/* ============== 章节详情页 ============== */
.chapter-page { padding-bottom: 20px; }
.chapter-hero {
  margin: 16px 16px 20px;
  padding: 18px 18px 16px;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255,250,240,0.95) 0%, rgba(255,250,240,0.7) 100%);
  border: 1px solid rgba(58, 95, 61, 0.12);
  border-top: 3px solid var(--tc, #3A5F3D);
}
.chapter-crumb {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--tc, #3A5F3D);
}
.chapter-hero-name {
  margin: 6px 0 4px;
  font-family: var(--f-title, serif);
  font-size: 20px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.12em;
}
.chapter-hero-desc {
  font-size: 13px;
  color: var(--c-ink-soft, #7d6f5e);
  margin: 0 0 8px;
}
.chapter-hero-stat {
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
}
.poem-chapter {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-ink-soft, #7d6f5e);
  padding: 4px 10px;
  background: rgba(58, 95, 61, 0.08);
  border-radius: 8px;
  margin-bottom: 8px;
}

/* ============== 关卡列表（章节内） ============== */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 0 16px 24px;
}
.level-card {
  position: relative;
  padding: 16px 12px;
  background: #fffaf0;
  border: 1px solid rgba(58, 95, 61, 0.12);
  border-radius: 12px;
  text-align: center;
  transition: all 0.25s;
  cursor: pointer;
  overflow: hidden;
}
.level-card.unlocked:active { transform: scale(0.97); }
.level-card.locked {
  opacity: 0.55;
  cursor: pointer;
  background: rgba(255, 250, 240, 0.6);
}
.level-card.completed {
  border-color: var(--c-cinnabar, #c94740);
  background: linear-gradient(180deg, #fffaf0 0%, rgba(201, 71, 64, 0.04) 100%);
}
.level-card .stamp {
  position: absolute;
  top: 8px; right: 8px;
  width: 32px; height: 32px;
  background: var(--c-cinnabar, #c94740);
  color: rgba(255, 252, 244, 0.92);
  font-family: var(--f-title, serif);
  font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transform: rotate(8deg);
  border-radius: 4px;
  background-image:
    radial-gradient(circle at 8% 8%, transparent 0%, transparent 18%, var(--c-cinnabar, #c94740) 19%),
    radial-gradient(circle at 92% 92%, transparent 0%, transparent 20%, var(--c-cinnabar, #c94740) 21%);
  box-shadow: 0 2px 6px rgba(139, 42, 38, 0.4);
}
.level-card .stamp::after {
  content: '通';
}
.level-card .lock-icon {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: var(--c-ink-soft, #a89a86);
  opacity: 0.5;
}
.lvl-no {
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--c-ink-soft, #7d6f5e);
}
.lvl-title {
  margin: 4px 0 2px;
  font-family: var(--f-title, serif);
  font-size: 15px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.06em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lvl-author {
  margin: 0;
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
  letter-spacing: 0.05em;
}

/* ============== 答题页 ============== */
.level-page { padding-bottom: 24px; }
.poem-card {
  margin: 16px 16px 14px;
  padding: 22px 18px 16px;
  background: linear-gradient(180deg, #fffaf0 0%, rgba(255, 250, 240, 0.7) 100%);
  border: 1px solid rgba(58, 95, 61, 0.12);
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.04);
  position: relative;
}
.poem-card::before, .poem-card::after {
  content: ''; position: absolute;
  width: 30px; height: 30px;
  background: radial-gradient(circle, rgba(58, 95, 61, 0.06) 0%, transparent 70%);
}
.poem-card::before { top: 8px; left: 8px; }
.poem-card::after { bottom: 8px; right: 8px; }
.poem-meta { text-align: center; margin-bottom: 12px; }
.poem-title {
  margin: 8px 0 4px;
  font-family: var(--f-title, serif);
  font-size: 24px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.18em;
}
.poem-author {
  font-size: 13px;
  color: var(--c-ink-soft, #7d6f5e);
  letter-spacing: 0.1em;
}
.poem-author .dynasty {
  color: var(--c-cinnabar, #c94740);
  margin-right: 6px;
}
.poem-body {
  margin: 12px 0;
  font-family: var(--f-title, serif);
  font-size: 17px;
  line-height: 2;
  color: var(--c-ink, #2b2118);
  text-align: center;
  letter-spacing: 0.08em;
}
.poem-body p { margin: 0; }
.poem-intro {
  margin: 12px 0 0;
  padding: 12px;
  background: rgba(58, 95, 61, 0.06);
  border-left: 3px solid var(--c-green-soft, #5d7c5e);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: var(--c-ink-soft, #7d6f5e);
  line-height: 1.7;
  font-style: italic;
}
.audio-bar {
  display: flex; align-items: center; gap: 10px;
  margin-top: 14px; padding: 8px;
  background: rgba(58, 95, 61, 0.04);
  border-radius: 10px;
}
.audio-btn {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border: none;
  background: var(--c-green-soft, #5d7c5e);
  color: #fffaf0;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}
.audio-btn:active { transform: scale(0.92); }
.audio-btn.playing {
  background: var(--c-cinnabar, #c94740);
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201, 71, 64, 0.4); }
  50% { box-shadow: 0 0 0 6px rgba(201, 71, 64, 0); }
}
.audio-progress {
  flex: 1; height: 4px;
  background: rgba(58, 95, 61, 0.12);
  border-radius: 2px;
  overflow: hidden;
}
.audio-progress-fill {
  width: 0; height: 100%;
  background: linear-gradient(90deg, var(--c-green-soft, #5d7c5e), var(--c-cinnabar, #c94740));
  border-radius: 2px;
  transition: width 0.2s;
}
.audio-time {
  flex-shrink: 0;
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
  font-variant-numeric: tabular-nums;
}

/* ============== 诗词场景插画 ============== */
/* 素材包有 10 张 3:4 竖版国风绘本配图（p001~p010_scene.jpg，每张 600~800KB），
   竖图直接铺满会把版面撑得很长，所以裁成 5:3 横幅（background-size:cover）。
   背景定位偏上（center 28%）保住主体：人物、农具、田野天际线多在画面上半部。 */
.poem-scene {
  width: 100%;
  height: 190px;
  margin: 14px 0 4px;
  background-color: rgba(58, 95, 61, 0.06);
  background-size: cover;
  background-position: center 28%;
  background-repeat: no-repeat;
  border-radius: 12px;
  border: 1px solid rgba(58, 95, 61, 0.10);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.07), inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}
@media (min-width: 560px) {
  .poem-scene { height: 230px; }
}

/* ============== 农耕课堂卡 ============== */
.knowledge-card {
  display: flex; gap: 12px;
  margin: 0 16px 16px;
  padding: 12px;
  background: rgba(201, 166, 104, 0.08);
  border: 1px solid rgba(201, 166, 104, 0.25);
  border-radius: 12px;
}
.kc-img {
  width: 80px; height: 80px; flex-shrink: 0;
  background-size: cover;
  background-position: center;
  border-radius: 8px;
}
.kc-text { flex: 1; min-width: 0; }
.kc-label {
  display: inline-block;
  padding: 2px 8px;
  background: var(--c-gold, #c9a668);
  color: #fffaf0;
  font-size: 11px;
  letter-spacing: 0.2em;
  border-radius: 4px;
  margin-bottom: 6px;
}
.kc-text > div {
  font-size: 13px;
  color: var(--c-ink-soft, #5c4d3a);
  line-height: 1.7;
}

/* ============== 答题卡 ============== */
.quiz-card {
  margin: 0 16px 16px;
  padding: 22px 18px;
  background: #fffaf0;
  border-radius: 16px;
  border: 1px solid rgba(58, 95, 61, 0.12);
  box-shadow: 0 6px 18px rgba(0,0,0,0.06);
}
.quiz-card.shake { animation: shake 0.4s; }
@keyframes shake {
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(4px); }
  30%, 50%, 70% { transform: translateX(-8px); }
  40%, 60% { transform: translateX(8px); }
}
.quiz-card.wrong-flash { animation: wrongFlash 0.6s; }
@keyframes wrongFlash {
  0%, 100% { box-shadow: 0 6px 18px rgba(0,0,0,0.06); }
  50% { box-shadow: 0 6px 30px rgba(217, 83, 79, 0.5); border-color: rgba(217, 83, 79, 0.6); }
}
.quiz-progress {
  display: flex; justify-content: space-between;
  font-size: 12px;
  color: var(--c-ink-soft, #7d6f5e);
  margin-bottom: 6px;
}
.quiz-progress-bar {
  height: 4px;
  background: rgba(58, 95, 61, 0.1);
  border-radius: 2px;
  margin-bottom: 14px;
  overflow: hidden;
}
.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c-green-soft, #5d7c5e), var(--c-cinnabar, #c94740));
  transition: width 0.4s;
}
.quiz-question {
  margin: 0 0 16px;
  font-family: var(--f-title, serif);
  font-size: 17px;
  color: var(--c-ink, #2b2118);
  line-height: 1.6;
}
.quiz-options {
  display: flex; flex-direction: column; gap: 10px;
}
.quiz-opt {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  background: rgba(255, 250, 240, 0.85);
  border: 1.5px solid rgba(58, 95, 61, 0.18);
  border-radius: 12px;
  font-family: var(--f-body, serif);
  font-size: 14px;
  color: var(--c-ink, #2b2118);
  cursor: pointer;
  text-align: left;
  transition: all 0.2s;
}
.quiz-opt:active:not(:disabled) { transform: scale(0.99); }
.quiz-opt-letter {
  flex-shrink: 0;
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(58, 95, 61, 0.08);
  color: var(--c-green-soft, #5d7c5e);
  font-weight: 700;
  border-radius: 50%;
  font-size: 12px;
}
.quiz-opt-text { flex: 1; }
.quiz-opt.correct {
  border-color: var(--c-green-soft, #5d7c5e);
  background: rgba(58, 95, 61, 0.08);
}
.quiz-opt.correct .quiz-opt-letter {
  background: var(--c-green-soft, #5d7c5e);
  color: #fffaf0;
}
.quiz-opt.wrong {
  border-color: var(--c-cinnabar, #c94740);
  background: rgba(217, 83, 79, 0.06);
}
.quiz-opt.wrong .quiz-opt-letter {
  background: var(--c-cinnabar, #c94740);
  color: #fffaf0;
}
.quiz-opt:disabled { cursor: default; }
.quiz-hint {
  margin-top: 14px;
  padding: 10px 12px;
  background: rgba(201, 166, 104, 0.12);
  border-left: 3px solid var(--c-gold, #c9a668);
  border-radius: 0 8px 8px 0;
  font-size: 13px;
  color: var(--c-ink-soft, #5c4d3a);
  line-height: 1.6;
}

/* ============== 答完弹窗（结果卡） ============== */
.result-card {
  margin: 0 16px 16px;
  padding: 28px 22px 22px;
  background: #fffaf0;
  border-radius: 18px;
  text-align: center;
  border: 1px solid rgba(58, 95, 61, 0.12);
  box-shadow: 0 6px 20px rgba(0,0,0,0.06);
}
.result-icon { margin-bottom: 14px; }
.result-title {
  margin: 0 0 4px;
  font-family: var(--f-title, serif);
  font-size: 22px;
  letter-spacing: 0.15em;
  color: var(--c-ink, #2b2118);
}
.result-card.lose .result-title { color: var(--c-cinnabar, #c94740); }
.result-sub {
  margin: 0 0 18px;
  font-size: 13px;
  color: var(--c-ink-soft, #7d6f5e);
  letter-spacing: 0.1em;
}
.result-stats {
  display: flex; justify-content: center; gap: 28px;
  margin: 18px 0;
}
.rs { display: flex; flex-direction: column; align-items: center; }
.rs-num {
  font-family: var(--f-title, serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--c-ink, #2b2118);
  line-height: 1;
}
.rs-lbl {
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-ink-soft, #7d6f5e);
}
.result-actions {
  display: flex; gap: 10px; justify-content: center;
}

/* ============== 搜索页 ============== */
.search-page { padding: 14px 16px 24px; }
.search-bar {
  position: relative;
  display: flex; align-items: center; gap: 8px;
  padding: 12px 14px;
  background: rgba(255, 252, 244, 0.95);
  border: 1px solid rgba(58, 95, 61, 0.18);
  border-radius: 14px;
  color: var(--c-ink-soft, #7d6f5e);
  box-shadow: 0 4px 14px rgba(58, 95, 61, 0.06);
  margin-bottom: 16px;
}
.search-bar input {
  flex: 1;
  border: 0; outline: 0; background: transparent;
  font-family: var(--f-body, serif);
  font-size: 14px;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.05em;
}
.search-clear {
  width: 22px; height: 22px;
  border: 0;
  background: rgba(58, 95, 61, 0.12);
  color: var(--c-ink-soft, #7d6f5e);
  border-radius: 50%;
  font-size: 14px; line-height: 1;
  cursor: pointer;
}
.search-results { margin-top: 4px; }
.search-list {
  display: flex; flex-direction: column; gap: 10px;
}
.search-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px;
  background: rgba(255, 250, 240, 0.85);
  border-radius: 12px;
  border: 1px solid rgba(58, 95, 61, 0.08);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}
.search-item:active { transform: scale(0.99); }
.search-item-no {
  flex-shrink: 0;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--c-green-soft, #5d7c5e);
  color: #fffaf0;
  font-family: var(--f-title, serif);
  font-weight: 700;
  font-size: 14px;
  border-radius: 10px;
}
.search-item-body { flex: 1; min-width: 0; }
.search-item-title {
  font-family: var(--f-title, serif);
  font-size: 16px; font-weight: 700;
  color: var(--c-ink, #2b2118);
}
.search-item-meta {
  font-size: 12px;
  color: var(--c-ink-soft, #7d6f5e);
  margin-top: 2px;
}
.search-item-arrow {
  font-size: 22px;
  color: var(--c-ink-soft, #a89a86);
}
.search-empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--c-ink-soft, #7d6f5e);
}
.search-empty-icon {
  font-size: 48px;
  margin-bottom: 12px;
  opacity: 0.5;
}
.hint-sub {
  font-size: 11px;
  opacity: 0.7;
}
.search-footer {
  margin-top: 14px;
  text-align: center;
  font-size: 12px;
  color: var(--c-ink-soft, #a89a86);
}
.search-hint {
  margin-top: 30px;
  padding: 18px;
  background: rgba(255, 250, 240, 0.5);
  border-radius: 14px;
}
.hint-title {
  margin: 0 0 10px;
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--c-ink-soft, #7d6f5e);
}
.quick-tags {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.quick-tag {
  padding: 6px 12px;
  background: #fffaf0;
  border: 1px solid rgba(58, 95, 61, 0.2);
  border-radius: 14px;
  font-size: 12px;
  color: var(--c-ink-soft, #5d4f3a);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}
.quick-tag:active {
  background: rgba(58, 95, 61, 0.12);
  color: var(--c-ink, #2b2118);
}

/* ============== 图鉴收藏馆 ============== */
.collection-page { padding: 14px 16px 30px; }
.collection-header {
  display: flex; align-items: center; justify-content: center;
  gap: 24px;
  padding: 22px;
  margin-bottom: 18px;
  background: linear-gradient(135deg, rgba(201, 71, 64, 0.08) 0%, rgba(201, 166, 104, 0.08) 100%);
  border-radius: 16px;
  border: 1px solid rgba(201, 71, 64, 0.12);
}
.collection-stat {
  display: flex; flex-direction: column; align-items: center;
}
.cs-num {
  font-family: var(--f-title, serif);
  font-size: 28px; font-weight: 700;
  color: var(--c-cinnabar, #c94740);
  line-height: 1;
}
.cs-lbl {
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-ink-soft, #7d6f5e);
}
.collection-stat-divider {
  width: 1px; height: 36px;
  background: rgba(58, 95, 61, 0.2);
}
.collection-theme {
  margin-bottom: 22px;
}
.collection-theme-head {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 4px;
  margin-bottom: 10px;
  border-bottom: 1px solid rgba(58, 95, 61, 0.1);
}
.cth-icon {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  background: var(--tc, #3A5F3D);
  color: #fffaf0;
  font-family: var(--f-title, serif);
  font-weight: 900;
  font-size: 16px;
  border-radius: 8px;
}
.cth-name {
  flex: 1;
  font-family: var(--f-title, serif);
  font-size: 15px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.12em;
}
.cth-stat {
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
}
.collection-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.collection-card {
  position: relative;
  aspect-ratio: 3 / 4;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(58, 95, 61, 0.06);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid rgba(58, 95, 61, 0.1);
}
.collection-card-img {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  filter: blur(0);
  transition: filter 0.3s, transform 0.3s;
}
.collection-card.locked .collection-card-img {
  filter: blur(8px) grayscale(0.7);
  transform: scale(1.1);
}
.collection-card-mask {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 8px;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.55) 100%);
  color: #fffaf0;
}
.cc-name {
  font-family: var(--f-title, serif);
  font-size: 13px; font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.05em;
}
.cc-meta {
  font-size: 10px;
  opacity: 0.85;
  margin-top: 2px;
  letter-spacing: 0.05em;
}
.cc-locked {
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.2em;
  opacity: 0.9;
  padding-top: 20px;
}
.cc-stamp {
  position: absolute; top: 6px; right: 6px;
  width: 26px; height: 26px;
  background: var(--c-cinnabar, #c94740);
  color: rgba(255, 252, 244, 0.92);
  font-family: var(--f-title, serif);
  font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  transform: rotate(8deg);
  border-radius: 3px;
  box-shadow: 0 2px 6px rgba(139, 42, 38, 0.4);
  background-image:
    radial-gradient(circle at 8% 8%, transparent 0%, transparent 18%, var(--c-cinnabar, #c94740) 19%),
    radial-gradient(circle at 92% 92%, transparent 0%, transparent 20%, var(--c-cinnabar, #c94740) 21%);
}
.cc-stamp::after { content: '通'; }

/* ============== 个人记录 ============== */
.record-page { padding: 14px 16px 30px; }
.record-card {
  text-align: center;
  padding: 28px 22px;
  background: linear-gradient(135deg, rgba(58, 95, 61, 0.06) 0%, rgba(201, 166, 104, 0.1) 100%);
  border-radius: 18px;
  margin-bottom: 16px;
  border: 1px solid rgba(58, 95, 61, 0.12);
}
.record-big-num {
  font-family: var(--f-title, serif);
  font-size: 56px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  line-height: 1;
}
.record-big-lbl {
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--c-ink-soft, #7d6f5e);
}
.record-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}
.record-cell {
  text-align: center;
  padding: 16px 8px;
  background: rgba(255, 250, 240, 0.85);
  border-radius: 12px;
  border: 1px solid rgba(58, 95, 61, 0.1);
}
.rc-num {
  display: block;
  font-family: var(--f-title, serif);
  font-size: 22px; font-weight: 700;
  color: var(--c-ink, #2b2118);
}
.rc-lbl {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: 0.25em;
  color: var(--c-ink-soft, #7d6f5e);
}
.record-section-title {
  margin: 14px 0 10px;
  font-family: var(--f-title, serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.15em;
}
.record-log {
  background: rgba(255, 250, 240, 0.85);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  border: 1px solid rgba(58, 95, 61, 0.1);
}
.log-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(58, 95, 61, 0.06);
  font-size: 13px;
}
.log-row:last-child { border-bottom: 0; }
.log-no {
  flex: 1;
  color: var(--c-ink, #2b2118);
}
.log-time {
  font-size: 11px;
  color: var(--c-ink-soft, #7d6f5e);
  font-variant-numeric: tabular-nums;
}
.log-result {
  width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 13px;
  border-radius: 50%;
}
.log-result.ok {
  background: rgba(58, 95, 61, 0.15);
  color: var(--c-green-soft, #5d7c5e);
}
.log-result.err {
  background: rgba(201, 71, 64, 0.15);
  color: var(--c-cinnabar, #c94740);
}
.empty-tip {
  padding: 40px 20px;
  text-align: center;
  font-size: 13px;
  color: var(--c-ink-soft, #a89a86);
}
.record-actions { margin-top: 14px; }

/* ============== 关于页 ============== */
.about-page { padding: 14px 16px 30px; }
.about-card {
  padding: 18px;
  background: rgba(255, 250, 240, 0.85);
  border-radius: 14px;
  border: 1px solid rgba(58, 95, 61, 0.1);
  margin-bottom: 14px;
}
.about-card h3 {
  margin: 0 0 6px;
  font-family: var(--f-title, serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--c-ink, #2b2118);
  letter-spacing: 0.18em;
}
.about-card h4 {
  margin: 0 0 10px;
  font-family: var(--f-title, serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-ink-soft, #5c4d3a);
  letter-spacing: 0.15em;
}
.about-version {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.15em;
  color: var(--c-cinnabar, #c94740);
}
.about-card p {
  margin: 0 0 8px;
  font-size: 13px;
  color: var(--c-ink-soft, #5c4d3a);
  line-height: 1.7;
}
.about-meta {
  padding: 8px 12px;
  background: rgba(58, 95, 61, 0.08);
  border-radius: 8px;
  font-size: 12px;
  text-align: center;
}
.about-theme-list {
  margin: 0; padding: 0; list-style: none;
}
.about-theme-list li {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 0;
  font-size: 13px;
  border-bottom: 1px dashed rgba(58, 95, 61, 0.1);
  color: var(--c-ink-soft, #5c4d3a);
}
.about-theme-list li:last-child { border-bottom: 0; }
.about-tdot {
  width: 10px; height: 10px; flex-shrink: 0;
  border-radius: 3px;
}
.about-foot {
  margin-top: 30px;
  text-align: center;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-ink-soft, #a89a86);
}

/* ============== 顶部导航（独立可调） ============== */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 8px;
  padding: 14px 16px;
  background: rgba(255, 252, 244, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(58, 95, 61, 0.1);
  transition: transform 0.25s ease;
}
.topbar.hidden { display: none; }
.topbar-back {
  border: 0; background: transparent;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px;
  color: var(--c-ink-soft, #7d6f5e);
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.2s;
}
.topbar-back:active { background: rgba(58, 95, 61, 0.08); }
.topbar-title {
  flex: 1; margin: 0;
  font-family: var(--f-title, serif);
  font-size: 17px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  text-align: center;
  letter-spacing: 0.18em;
}
.topbar-spacer { width: 32px; height: 32px; }

/* ============== 按钮 ============== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-family: var(--f-body, serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.15em;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  background: transparent;
  color: var(--c-ink, #2b2118);
}
.btn:active { transform: scale(0.98); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 20px; font-size: 17px; }
.btn-primary {
  background: linear-gradient(135deg, var(--c-green-soft, #5d7c5e), var(--c-green, #3A5F3D));
  color: #fffaf0;
  box-shadow: 0 6px 16px rgba(58, 95, 61, 0.3);
  border-color: transparent;
}
.btn-primary:active { box-shadow: 0 2px 8px rgba(58, 95, 61, 0.3); }
.btn-ghost {
  background: rgba(255, 250, 240, 0.85);
  border-color: rgba(58, 95, 61, 0.18);
  color: var(--c-ink, #2b2118);
}
.btn-ghost:active {
  background: rgba(58, 95, 61, 0.08);
}

/* ============== Toast ============== */
#toast {
  position: fixed;
  left: 50%; bottom: 100px;
  transform: translateX(-50%);
  padding: 10px 18px;
  background: rgba(43, 33, 24, 0.92);
  color: #fffaf0;
  border-radius: 22px;
  font-size: 13px;
  letter-spacing: 0.05em;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  z-index: 100;
  box-shadow: 0 6px 18px rgba(0,0,0,0.2);
}
#toast.show {
  opacity: 1;
  bottom: 110px;
}

/* ============== 弹窗 ============== */
.modal-mask {
  position: fixed; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.4);
  padding: 20px;
  animation: fade 0.2s ease;
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.modal-card {
  width: 100%; max-width: 320px;
  background: #fffaf0;
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
  animation: popIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes popIn {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.modal-title {
  margin: 0 0 10px;
  font-family: var(--f-title, serif);
  font-size: 17px; font-weight: 700;
  color: var(--c-ink, #2b2118);
  text-align: center;
  letter-spacing: 0.15em;
}
.modal-body {
  font-size: 13px;
  color: var(--c-ink-soft, #5c4d3a);
  line-height: 1.7;
  margin-bottom: 16px;
  text-align: center;
}
.modal-actions {
  display: flex; gap: 10px; justify-content: center;
}

/* ============== 响应式 ============== */
@media (min-width: 640px) {
  .themes-grid { grid-template-columns: repeat(3, 1fr); }
  .levels-grid { grid-template-columns: repeat(3, 1fr); }
  .chapters-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
  .collection-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 900px) {
  .themes-grid { grid-template-columns: repeat(3, 1fr); }
  .levels-grid { grid-template-columns: repeat(4, 1fr); }
  .chapters-grid { grid-template-columns: repeat(3, 1fr); }
  .collection-grid { grid-template-columns: repeat(5, 1fr); }
}