@charset "UTF-8";
/* ==========================================================================
   單元 2：數的規律與跳數 (SEQUENCE & SKIP COUNTING MODULE)
   專門破解：1個1個數、10個10個數、跨百跨十進退位與倒數反推
   ========================================================================== */

/* ---------- 規律探索舞台容器 ---------- */
.seq-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius-card);
  box-shadow: 6px 6px 0 var(--shadow-ink);
  padding: 28px 22px 32px;
  margin-bottom: 40px;
}

.seq-header {
  text-align: center;
  margin-bottom: 24px;
}

.seq-header h2 {
  font-size: clamp(20px, 3.4vw, 28px);
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.seq-header .sub {
  color: var(--ink-soft);
  font-size: 14.5px;
  margin: 0;
}

/* ---------- 步長與模式控制盤 (STEP CONTROLLER) ---------- */
.seq-control-deck {
  background: #f8fafc;
  border: 1.5px solid #cbd5e1;
  border-radius: 16px;
  padding: 16px 18px;
  margin-bottom: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.seq-control-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.seq-control-label {
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 6px;
}

.seq-step-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.step-pill {
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  border-radius: 24px;
  padding: 6px 14px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.step-pill:hover {
  border-color: #2563eb;
  color: #2563eb;
  background: #eff6ff;
  transform: translateY(-1px);
}

.step-pill.active {
  background: #2563eb;
  color: #ffffff;
  border-color: #1d4ed8;
  box-shadow: 0 3px 8px rgba(37, 99, 235, 0.35);
}

/* 自訂跳數間隔膠囊 */
.seq-custom-step-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  border-radius: 24px;
  padding: 3px 6px 3px 12px;
  transition: all 0.18s ease;
}

.seq-custom-step-item:hover {
  border-color: #94a3b8;
}

.seq-custom-step-item:focus-within,
.seq-custom-step-item.active {
  border-color: #2563eb;
  background: #eff6ff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.seq-custom-label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  cursor: pointer;
}

.seq-custom-step-input {
  width: 58px;
  padding: 4px 6px;
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  border: 1.5px solid #cbd5e1;
  border-radius: 8px;
  background: #ffffff;
  color: var(--ink);
  transition: border-color 0.15s ease;
}

.seq-custom-step-input:focus {
  outline: none;
  border-color: #2563eb;
}

.step-pill-custom-apply {
  background: #2563eb;
  color: #ffffff;
  border: none;
  border-radius: 18px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.18s ease;
}

.step-pill-custom-apply:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
}

.step-pill-custom-apply:active {
  transform: translateY(0);
}

/* 起點與手動輸入列 */
.seq-start-input-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.seq-start-input-group label {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
}

.seq-number-input {
  width: 90px;
  padding: 6px 10px;
  font-size: 16px;
  font-weight: 700;
  text-align: center;
  border: 1.5px solid #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
  color: var(--ink);
}

.seq-number-input:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* ---------- 數列列車車廂 (NUMBER TRAIN CAROUSEL) ---------- */
.seq-train-stage {
  position: relative;
  margin: 20px 0 28px;
  padding: 24px 10px 14px;
  background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
  border-radius: 20px;
  border: 2px dashed #94a3b8;
  overflow: hidden; /* 徹底移除水平捲軸 */
  box-sizing: border-box;
}

.seq-train-track {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(4px, 1vw, 10px);
  width: 100%;
  min-width: 0;
  padding: 12px 4px 18px;
  box-sizing: border-box;
}

/* 車廂單元卡片 (彈性自適應，不超出不換行無捲軸) */
.train-car {
  flex: 1 1 0;
  min-width: 0;
  max-width: 124px;
  background: #ffffff;
  border: 2px solid #64748b;
  border-radius: 16px;
  padding: 10px 4px 8px;
  text-align: center;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  position: relative;
  transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.22s ease, border-color 0.22s ease;
}

/* 軌道小輪子 */
.train-car::after,
.train-car::before {
  content: "";
  position: absolute;
  bottom: -11px;
  width: 16px;
  height: 16px;
  background: #334155;
  border: 2px solid #cbd5e1;
  border-radius: 50%;
  z-index: 2;
}
.train-car::before { left: 16px; }
.train-car::after { right: 16px; }

/* 車廂連接軸 */
.train-car + .train-car::after-axis {
  content: "";
}

.train-car-role {
  font-size: 11px;
  font-weight: 700;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 車廂內的大數字 (分位拆解顯示) */
.train-car-num {
  font-family: 'Baloo 2', 'Noto Sans TC', sans-serif;
  font-size: clamp(20px, 3.2vw, 30px);
  font-weight: 800;
  line-height: 1.1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1px;
}

/* 分位顏色與高亮 */
.digit-h { color: var(--h-color, #2563eb); }
.digit-t { color: var(--t-color, #ea580c); }
.digit-o { color: var(--o-color, #64748b); }
.digit-th { color: var(--th-color, #7e22ce); }

/* 正在跳變的數位高亮脈動 */
.digit-pulsing {
  background: #fef08a;
  color: #854d0e !important;
  padding: 0 3px;
  border-radius: 6px;
  box-shadow: 0 0 0 2px #facc15;
  animation: digitBounce 0.45s ease;
}

@keyframes digitBounce {
  0% { transform: scale(1); }
  50% { transform: scale(1.35) translateY(-3px); }
  100% { transform: scale(1); }
}

/* 當前聚焦車廂 (中央主焦點) */
.train-car.current {
  flex: 1.25 1 0;
  max-width: 154px;
  border: 3px solid #2563eb;
  background: #eff6ff;
  box-shadow: 0 10px 25px -3px rgba(37, 99, 235, 0.35);
  transform: translateY(-8px) scale(1.06);
  z-index: 5;
}

.train-car.current .train-car-role {
  color: #1d4ed8;
  font-weight: 800;
}

.train-car.current .train-car-num {
  font-size: clamp(24px, 3.8vw, 36px);
}

/* 跨百進退位特殊高光車廂 */
.train-car.cross-hundred {
  border-color: #f59e0b;
  background: linear-gradient(145deg, #fffbeb 0%, #fef3c7 100%);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.35), 0 10px 25px -3px rgba(245, 158, 11, 0.4);
}

.cross-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: #f59e0b;
  color: #ffffff;
  font-size: 10.5px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 12px;
  white-space: nowrap;
  box-shadow: 0 2px 4px rgba(0,0,0,0.15);
  animation: badgePop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes badgePop {
  0% { transform: translateX(-50%) scale(0.5); }
  100% { transform: translateX(-50%) scale(1); }
}

/* ---------- 列車操作按鈕群 (NAVIGATION BAR) ---------- */
.seq-nav-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.seq-nav-btn {
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 700;
  border-radius: 12px;
  border: 1.5px solid var(--ink);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.seq-nav-btn.primary {
  background: #2563eb;
  color: #ffffff;
  border-color: #1d4ed8;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
}
.seq-nav-btn.primary:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
}

.seq-nav-btn.secondary {
  background: #ffffff;
  color: var(--ink);
}
.seq-nav-btn.secondary:hover {
  background: #f1f5f9;
  transform: translateY(-2px);
}

/* ---------- 規律透視與積木同步展開盒 (EXPLANATION & BLOCKS DOCK) ---------- */
.seq-inspect-card {
  margin-top: 26px;
  background: #ffffff;
  border: 2px solid #e2e8f0;
  border-radius: 18px;
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.seq-tip-banner {
  background: #f0fdf4;
  border: 1.5px solid #86efac;
  border-radius: 14px;
  padding: 14px 18px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.seq-tip-icon {
  font-size: 24px;
  line-height: 1;
  flex-shrink: 0;
}

.seq-tip-content {
  flex: 1;
}

.seq-tip-title {
  font-weight: 800;
  font-size: 15px;
  color: #166534;
  margin-bottom: 4px;
}

.seq-tip-body {
  font-size: 14px;
  color: #15803d;
  line-height: 1.6;
}

.seq-tip-body b {
  font-weight: 800;
  padding: 1px 4px;
  border-radius: 4px;
}
.seq-tip-body b.t-highlight { background: #ccfbf1; color: #0f766e; }
.seq-tip-body b.h-highlight { background: #dbeafe; color: #1d4ed8; }
.seq-tip-body b.o-highlight { background: #fef3c7; color: #b45309; }

/* 積木連動顯示區 */
.seq-blocks-view {
  display: flex;
  gap: 16px;
  justify-content: space-around;
  flex-wrap: wrap;
  padding-top: 8px;
}

.seq-block-col {
  flex: 1;
  min-width: 140px;
  background: #f8fafc;
  border: 1.5px solid #cbd5e1;
  border-radius: 14px;
  padding: 12px 14px;
  text-align: center;
}

.seq-block-col-head {
  font-weight: 800;
  font-size: 13.5px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.seq-block-col.col-h .seq-block-col-head { color: var(--h-color, #2563eb); }
.seq-block-col.col-t .seq-block-col-head { color: var(--t-color, #ea580c); }
.seq-block-col.col-o .seq-block-col-head { color: var(--o-color, #64748b); }

.seq-block-container {
  min-height: 75px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

/* ==========================================================================
   子分頁 2：規律神探挑戰賽 (QUIZ MODE)
   高度擬真考卷格式、直覺易按、多救生圈輔助
   ========================================================================== */
.seq-quiz-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius-card);
  box-shadow: 6px 6px 0 var(--shadow-ink);
  padding: 26px 20px 32px;
  margin-bottom: 40px;
}

/* 關卡選擇按鈕欄 */
.seq-level-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.level-pill {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 700;
  border-radius: 20px;
  border: 1.5px solid #cbd5e1;
  background: #ffffff;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.level-pill:hover {
  background: #f1f5f9;
  border-color: #94a3b8;
}

.level-pill.active {
  background: #0f766e;
  color: #ffffff;
  border-color: #115e59;
  box-shadow: 0 3px 8px rgba(15, 118, 110, 0.3);
}

.level-pill.featured {
  border-color: #f59e0b;
  color: #b45309;
}
.level-pill.featured.active {
  background: #f59e0b;
  color: #ffffff;
}

/* 考卷橫式題卡排版 */
.paper-quiz-board {
  background: #fffdfa;
  border: 2px solid #334155;
  border-radius: 20px;
  padding: 24px 18px 26px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  margin-bottom: 24px;
}

.paper-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1.5px dashed #cbd5e1;
}

.paper-title {
  font-size: 16px;
  font-weight: 800;
  color: #1e293b;
  display: flex;
  align-items: center;
  gap: 8px;
}

.paper-stats {
  font-size: 13.5px;
  font-weight: 700;
  color: #64748b;
  display: flex;
  gap: 12px;
}

/* 考卷方格數列 (格狀排列) */
.paper-slots-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 4px;
}

/* 連接符號橫槓 */
.paper-slot-dash {
  width: 14px;
  height: 2px;
  background: #64748b;
  border-radius: 2px;
}

/* 考卷格子卡片 */
.paper-slot {
  min-width: 78px;
  height: 64px;
  background: #ffffff;
  border: 2px solid #475569;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Baloo 2', 'Noto Sans TC', sans-serif;
  font-size: 26px;
  font-weight: 800;
  color: #0f172a;
  position: relative;
  transition: all 0.2s ease;
}

/* 題目既有的固定數字 */
.paper-slot.fixed {
  background: #f1f5f9;
  color: #334155;
  border-color: #94a3b8;
  cursor: default;
}

/* 待作答的空白輸入格 */
.paper-slot.blank {
  background: #ffffff;
  border: 2px dashed #2563eb;
  color: #2563eb;
  cursor: pointer;
}

.paper-slot.blank:hover {
  background: #eff6ff;
  transform: translateY(-2px);
  border-style: solid;
}

/* 正在作用中的輸入格 */
.paper-slot.blank.active {
  background: #eff6ff;
  border: 2.5px solid #2563eb;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.25);
  transform: translateY(-3px) scale(1.04);
}

/* 作答正確 */
.paper-slot.blank.correct {
  background: #ecfdf5;
  border: 2px solid #10b981;
  color: #047857;
}
.paper-slot.blank.correct::after {
  content: "✓";
  position: absolute;
  top: -8px;
  right: -6px;
  background: #10b981;
  color: #ffffff;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 作答錯誤 */
.paper-slot.blank.wrong {
  background: #fef2f2;
  border: 2px solid #ef4444;
  color: #b91c1c;
  animation: slotShake 0.35s ease;
}

@keyframes slotShake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* 空格內打字光標效果 */
.paper-slot.blank.active:empty::before {
  content: "?";
  color: #93c5fd;
  opacity: 0.6;
  animation: pulseQmark 1.2s infinite ease-in-out;
}

@keyframes pulseQmark {
  0%, 100% { opacity: 0.3; transform: scale(0.9); }
  50% { opacity: 0.8; transform: scale(1.1); }
}

/* ---------- 救生圈小幫手列 (LIFELINES) ---------- */
.paper-rescue-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  gap: 12px;
  flex-wrap: wrap;
}

.rescue-btn {
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  border-radius: 12px;
  padding: 7px 14px;
  font-size: 13.5px;
  font-weight: 700;
  color: #334155;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.16s ease;
}

.rescue-btn:hover {
  background: #f8fafc;
  border-color: #64748b;
  transform: translateY(-1px);
}

.rescue-btn.detect-btn {
  color: #b45309;
  border-color: #fde68a;
  background: #fffbeb;
}
.rescue-btn.detect-btn:hover {
  background: #fef3c7;
  border-color: #f59e0b;
}

/* 偵探分析提示框 (動態滑出) */
.detective-analysis-card {
  margin-top: 14px;
  background: #fefce8;
  border: 1.5px solid #facc15;
  border-radius: 14px;
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  animation: slideDown 0.25s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.detective-avatar {
  font-size: 26px;
  line-height: 1;
}

.detective-msg-title {
  font-size: 14.5px;
  font-weight: 800;
  color: #854d0e;
  margin-bottom: 2px;
}

.detective-msg-body {
  font-size: 13.5px;
  color: #713f12;
  line-height: 1.5;
}

/* ---------- 虛擬大數字鍵盤外殼 (NUMPAD WRAPPER) ---------- */
/* 內部鍵盤按鈕由 createNumpad 工廠函式產生，使用 quiz.css 的共用 .virtual-keypad 樣式 */
.seq-numpad-wrap {
  max-width: 340px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 覆寫 margin，讓 seq 的 virtual-keypad 不額外增加下方留白 */
.seq-numpad-wrap .virtual-keypad {
  margin: 0;
}



/* 底部操作主按鈕 (檢查、下一題) */
.seq-action-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 14px;
}

.seq-check-btn {
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 800;
  border-radius: 14px;
  background: #10b981;
  color: #ffffff;
  border: 2px solid #059669;
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
  cursor: pointer;
  transition: all 0.16s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.seq-check-btn:hover {
  background: #059669;
  transform: translateY(-2px);
}

.seq-next-btn {
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 800;
  border-radius: 14px;
  background: #2563eb;
  color: #ffffff;
  border: 2px solid #1d4ed8;
  cursor: pointer;
  transition: all 0.16s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.seq-next-btn:hover {
  background: #1d4ed8;
  transform: translateY(-2px);
}

/* ---------- P1: 車廂間跳數動態連接符與弧箭頭標籤 ---------- */
.train-step-connector {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  width: clamp(24px, 3.4vw, 36px);
  z-index: 3;
  user-select: none;
}

.train-connector-line {
  position: absolute;
  top: 50%;
  left: -4px;
  right: -4px;
  height: 2px;
  background: #94a3b8;
  border-top: 2px dashed #cbd5e1;
  z-index: 1;
}

.train-step-pill {
  position: relative;
  z-index: 2;
  background: #ffffff;
  border: 1.5px solid #3b82f6;
  border-radius: 12px;
  padding: 2px 7px;
  font-family: 'Baloo 2', 'Noto Sans TC', sans-serif;
  font-size: 12px;
  font-weight: 800;
  color: #1d4ed8;
  box-shadow: 0 2px 5px rgba(37, 99, 235, 0.2);
  display: flex;
  align-items: center;
  gap: 2px;
  white-space: nowrap;
  animation: pulseConnector 2s infinite ease-in-out;
  cursor: help;
  transition: transform 0.18s ease;
}

.train-step-pill:hover {
  transform: scale(1.12);
  background: #eff6ff;
  border-color: #1d4ed8;
}

.train-step-pill.neg {
  border-color: #ea580c;
  color: #c2410c;
  box-shadow: 0 2px 5px rgba(234, 88, 12, 0.2);
}

@keyframes pulseConnector {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

/* ---------- P3: 百數表空間地圖 (HUNDRED CHART) ---------- */
.hundred-chart-section {
  background: #ffffff;
  border: 1.5px solid #cbd5e1;
  border-radius: 18px;
  padding: 16px 18px;
  margin-top: 24px;
}

.chart-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.chart-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 16px;
  color: var(--ink);
}

.chart-toggle-btn {
  background: #f1f5f9;
  border: 1.5px solid #cbd5e1;
  border-radius: 12px;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 700;
  color: #334155;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.16s ease;
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.chart-toggle-btn:hover {
  background: #e2e8f0;
  color: #0f172a;
}

.chart-range-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chart-range-btn {
  background: #f8fafc;
  border: 1.5px solid #cbd5e1;
  border-radius: 14px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  color: #475569;
  cursor: pointer;
  transition: all 0.15s ease;
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.chart-range-btn.active {
  background: #0284c7;
  border-color: #0369a1;
  color: #ffffff;
}

/* 十字方位指針 */
.chart-compass-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 8px 12px;
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 12px;
  margin-bottom: 14px;
  font-size: 12.5px;
  font-weight: 700;
  color: #166534;
}

.compass-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 10x10 百數表格子 (無捲軸、邊界無溢出，高度自適應相容 iPadOS) */
.hundred-chart-grid-wrap {
  overflow: hidden; /* 徹底移除捲軸 */
  padding: 6px 4px;
  box-sizing: border-box;
}

.hundred-chart-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-gap: 4px;
  gap: 4px;
  min-width: 0;
  max-width: 680px;
  margin: 0 auto;
  box-sizing: border-box;
}

.chart-cell {
  aspect-ratio: 1;
  min-height: 36px;
  height: auto;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Baloo 2', -apple-system, BlinkMacSystemFont, 'Noto Sans TC', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: #475569;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  position: relative;
  box-sizing: border-box;
}

.chart-cell:hover {
  background: #dbeafe;
  border-color: #3b82f6;
  color: #1d4ed8;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.2);
  z-index: 2;
}

/* 焦點格子：使用純光暈與框線高亮，完全不使用 scale 避免產生捲軸 */
.chart-cell.cell-current {
  background: #fef08a !important;
  border: 2.5px solid #ca8a04 !important;
  color: #713f12 !important;
  font-size: 15px;
  font-weight: 900;
  box-shadow: inset 0 0 0 1px #ca8a04, 0 0 10px rgba(234, 179, 8, 0.5);
  z-index: 3;
}

.chart-cell.cell-trail {
  background: #e0f2fe;
  border-color: #7dd3fc;
  color: #0369a1;
  font-weight: 800;
}

/* ---------- P4: 規律盲猜模式與生活跳數擴展 ---------- */
.mystery-card {
  background: #f0fdfa;
  border: 1.5px dashed #0d9488;
  border-radius: 14px;
  padding: 12px 16px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
}

.mystery-title {
  font-size: 14px;
  font-weight: 800;
  color: #0f766e;
}

.mystery-options {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.mystery-btn {
  background: #ffffff;
  border: 1.5px solid #14b8a6;
  border-radius: 16px;
  padding: 6px 14px;
  font-size: 13.5px;
  font-weight: 800;
  color: #0f766e;
  cursor: pointer;
  transition: all 0.16s ease;
}

.mystery-btn:hover {
  background: #ccfbf1;
  transform: translateY(-1px);
}

.mystery-btn.selected {
  background: #0d9488;
  color: #ffffff;
  border-color: #0f766e;
}

/* 響應式優化 (全解析度無捲軸設計) */
@media (max-width: 680px) {
  .seq-train-track {
    min-width: 0;
    width: 100%;
    gap: 3px;
    padding: 8px 2px 14px;
  }
  .train-step-connector {
    width: 22px;
  }
  .train-step-pill {
    padding: 1px 3px;
    font-size: 10px;
    border-radius: 8px;
  }
  .train-car {
    max-width: 82px;
    padding: 6px 2px 5px;
    border-radius: 12px;
  }
  .train-car-role {
    font-size: 9.5px;
  }
  .train-car-num {
    font-size: 18px;
  }
  .train-car.current {
    max-width: 96px;
  }
  .train-car.current .train-car-num {
    font-size: 22px;
  }
  .paper-slot {
    min-width: 52px;
    height: 48px;
    font-size: 19px;
  }
  .hundred-chart-grid {
    min-width: 320px;
    gap: 2px;
  }
  .chart-cell {
    font-size: 11px;
  }
}