/* ===== 积木速算 ===== */
.blocks-page {
  position: relative;
  background:
    radial-gradient(120% 60% at 50% -10%, #E0ECFF 0%, rgba(224,236,255,0) 55%),
    linear-gradient(180deg, #E8F2FF 0%, #F0F7FF 40%, #F5F3FF 100%);
  overflow: hidden;
}

.blocks-top-bar {
  background: linear-gradient(180deg, rgba(232,242,255,.92) 0%, rgba(232,242,255,.55) 70%, rgba(232,242,255,0) 100%);
}
.blocks-chip {
  background: linear-gradient(135deg, #A78BFA, #8B5CF6);
  box-shadow: 0 4px 10px rgba(139,92,246,0.32);
  width: 30px; height: 30px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center; color: #fff; flex-shrink: 0;
}

/* ===== 顶部紧凑状态条 ===== */
.blocks-status-compact {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.combo-pill, .score-pill {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}
.combo-pill {
  background: linear-gradient(135deg, #FFF1B8, #FFE082);
  border: 1.5px solid rgba(245,158,11,0.35);
  color: #B45309;
}
.combo-pill i { color: #EF4444; }
.score-pill {
  background: rgba(79,140,255,0.1);
  border: 1.5px solid rgba(79,140,255,0.2);
  color: var(--gc-primary);
}
.score-pill i { color: var(--gc-warning); }

/* ===== 计时条 ===== */
.blocks-timer-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 18px 2px;
  position: relative;
  z-index: 20;
}
.blocks-timer-info {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 13px;
  font-weight: 800;
  color: var(--gc-logic);
  flex-shrink: 0;
  min-width: 42px;
}
.blocks-timer-track {
  flex: 1;
  height: 8px;
  background: rgba(167,139,250,0.15);
  border-radius: 999px;
  overflow: hidden;
}
.blocks-timer-fill {
  height: 100%;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #A78BFA, #8B5CF6);
  transition: width 0.6s ease, background 0.3s ease;
}
.blocks-timer-fill.danger {
  background: linear-gradient(90deg, #F87171, #EF4444);
}

/* ===== 轮次进度点 ===== */
.rounds-bar-wrap {
  padding: 2px 18px 4px;
  position: relative;
  z-index: 20;
}
.rounds-dots {
  display: flex;
  gap: 5px;
  justify-content: center;
  align-items: center;
}
.rounds-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gc-border);
  transition: all 0.3s ease;
}
.rounds-dots .dot.done {
  background: var(--gc-success);
  box-shadow: 0 0 6px rgba(34,197,94,0.4);
}
.rounds-dots .dot.current {
  width: 20px;
  border-radius: 999px;
  background: var(--gc-logic);
  box-shadow: 0 0 10px rgba(167,139,250,0.5);
}
.rounds-dots .dot-line {
  width: 10px;
  height: 2px;
  border-radius: 999px;
  background: var(--gc-border);
}
.rounds-dots .dot-line.done { background: var(--gc-success); }

/* ===== 玩题区 ===== */
.blocks-play-area {
  flex: 1;
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 6px 16px 80px;
}

/* ===== 目标数字卡片 ===== */
.expression-card {
  background: var(--gc-card);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(139,92,246,0.08), 0 1px 4px rgba(0,0,0,0.04);
  padding: 12px 14px 12px;
  border: 1px solid rgba(167,139,250,0.1);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.expression-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #A78BFA, #8B5CF6, #C4B5FD);
}
.expr-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.expression-label {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  font-weight: 700;
  color: var(--gc-logic);
  background: rgba(167,139,250,0.1);
  padding: 2px 8px;
  border-radius: 999px;
}
.voice-btn-mini {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #A78BFA, #8B5CF6);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(139,92,246,0.3);
  flex-shrink: 0;
}
.voice-btn-mini:active { transform: scale(0.9); }
.target-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 8px;
}
.target-big-number {
  font-size: 40px;
  font-weight: 900;
  background: linear-gradient(135deg, #A78BFA 0%, #8B5CF6 50%, #7C3AED 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.selected-blocks-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  flex-wrap: wrap;
}
.block-tile {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  border-radius: 10px;
  transition: all 0.2s ease;
}
.block-tile.num {
  width: 32px;
  height: 32px;
  font-size: 15px;
  background: var(--gc-card);
  border: 2px solid var(--gc-border);
  color: var(--gc-foreground);
}
.block-tile.num.placeholder {
  background: linear-gradient(135deg, #EDE9FE, #DDD6FE);
  border: 2px dashed rgba(167,139,250,0.35);
  color: rgba(167,139,250,0.6);
}
.block-tile.num.selected {
  background: linear-gradient(180deg, #A78BFA 0%, #8B5CF6 100%);
  border-color: var(--gc-logic);
  color: white;
  box-shadow: 0 3px 10px rgba(139,92,246,0.4);
}
.block-tile.op {
  width: 16px;
  height: 16px;
  font-size: 14px;
  color: var(--gc-muted-foreground);
  font-weight: 900;
}
.block-tile.sum {
  width: 38px;
  height: 32px;
  font-size: 15px;
  background: rgba(34,197,94,0.12);
  border: 2px solid rgba(34,197,94,0.35);
  color: var(--gc-success);
}
.block-tile.sum.wrong {
  background: rgba(239,68,68,0.12);
  border-color: rgba(239,68,68,0.35);
  color: var(--gc-danger);
}

/* ===== 3x3 数字网格 ===== */
.blocks-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 2px;
}
.num-block {
  aspect-ratio: 1;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  border: 2px solid transparent;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  padding: 0;
  font-family: inherit;
}
.num-block:active { transform: scale(0.93); }
.num-block.c-blue {
  background: linear-gradient(145deg, #EBF2FF 0%, #D6E6FF 100%);
  border-color: rgba(79,140,255,0.25);
  box-shadow: 0 3px 10px rgba(79,140,255,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-blue .block-num { color: var(--gc-math); }
.num-block.c-green {
  background: linear-gradient(145deg, #ECFDF5 0%, #D1FAE5 100%);
  border-color: rgba(34,197,94,0.25);
  box-shadow: 0 3px 10px rgba(34,197,94,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-green .block-num { color: #16A34A; }
.num-block.c-orange {
  background: linear-gradient(145deg, #FFF7ED 0%, #FFEDD5 100%);
  border-color: rgba(249,115,22,0.25);
  box-shadow: 0 3px 10px rgba(249,115,22,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-orange .block-num { color: #EA580C; }
.num-block.c-purple {
  background: linear-gradient(145deg, #F5F3FF 0%, #EDE9FE 100%);
  border-color: rgba(139,92,246,0.25);
  box-shadow: 0 3px 10px rgba(139,92,246,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-purple .block-num { color: #7C3AED; }
.num-block.c-pink {
  background: linear-gradient(145deg, #FFF1F2 0%, #FFE4E6 100%);
  border-color: rgba(236,72,153,0.25);
  box-shadow: 0 3px 10px rgba(236,72,153,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-pink .block-num { color: #DB2777; }
.num-block.c-teal {
  background: linear-gradient(145deg, #F0FDFA 0%, #CCFBF1 100%);
  border-color: rgba(20,184,166,0.25);
  box-shadow: 0 3px 10px rgba(20,184,166,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-teal .block-num { color: #0D9488; }
.num-block.c-amber {
  background: linear-gradient(145deg, #FFFBEB 0%, #FEF3C7 100%);
  border-color: rgba(245,158,11,0.25);
  box-shadow: 0 3px 10px rgba(245,158,11,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-amber .block-num { color: #D97706; }
.num-block.c-red {
  background: linear-gradient(145deg, #FEF2F2 0%, #FECACA 100%);
  border-color: rgba(239,68,68,0.25);
  box-shadow: 0 3px 10px rgba(239,68,68,0.12), inset 0 1px 0 rgba(255,255,255,0.8);
}
.num-block.c-red .block-num { color: #DC2626; }
.block-num {
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
}

/* 数字方块状态 */
.num-block.selected {
  transform: scale(1.06);
  box-shadow: 0 0 20px rgba(139,92,246,0.5), 0 4px 12px rgba(139,92,246,0.3) !important;
  border-color: var(--gc-logic) !important;
  background: linear-gradient(145deg, #A78BFA 0%, #8B5CF6 100%) !important;
  animation: block-pop 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.num-block.selected .block-num { color: white !important; }
@keyframes block-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1.06); }
}

.num-block.correct {
  background: linear-gradient(145deg, #F0FDF4, #DCFCE7) !important;
  border-color: var(--gc-success) !important;
  box-shadow: 0 0 20px rgba(34,197,94,0.35), 0 3px 10px rgba(34,197,94,0.2) !important;
  animation: block-correct 0.5s ease;
}
.num-block.correct .block-num { color: var(--gc-success) !important; }
.num-block.correct::after {
  content: '';
  position: absolute;
  top: 4px; right: 4px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--gc-success);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-size: 10px;
  background-repeat: no-repeat;
  background-position: center;
}
@keyframes block-correct {
  0% { transform: scale(1); }
  30% { transform: scale(1.08); }
  100% { transform: scale(1); }
}
.num-block.wrong { animation: block-shake 0.4s ease; }
@keyframes block-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
.num-block.faded { opacity: 0.4; pointer-events: none; transform: scale(0.95); }

/* ===== 底部按钮栏（3 个按钮） ===== */
.blocks-bottom-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 40;
  display: flex;
  gap: 8px;
  padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
  background: linear-gradient(180deg, rgba(245,243,255,0) 0%, rgba(245,243,255,.92) 30%, #EAF3FF 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  max-width: var(--gc-container-width);
  margin: 0 auto;
}
.blocks-bottom-bar .action-btn {
  flex: 1;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-size: 14px;
  font-weight: 800;
  box-shadow: var(--gc-shadow-sm);
  transition: transform 0.12s ease, box-shadow 0.2s ease;
  cursor: pointer;
  border: none;
  font-family: inherit;
}
.blocks-bottom-bar .action-btn:active { transform: scale(0.96); }
.blocks-bottom-bar .action-btn svg,
.blocks-bottom-bar .action-btn i { width: 17px; height: 17px; }
.blocks-bottom-bar .btn-hint {
  background: #FFF6E6;
  color: var(--gc-warning);
  border: 1.5px solid rgba(245,158,11,0.4);
}
.blocks-bottom-bar .btn-submit {
  flex: 1.3;
  background: linear-gradient(135deg, #A78BFA 0%, #8B5CF6 50%, #7C3AED 100%);
  color: white;
  box-shadow: 0 5px 16px rgba(139,92,246,0.4);
  position: relative;
  overflow: hidden;
}
.blocks-bottom-bar .btn-submit::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.5s ease;
}
.blocks-bottom-bar .btn-submit:active::before { left: 100%; }

/* ===== 响应式：平板竖屏（>=768px） ===== */
@media (min-width: 768px) {
  /* 积木速算底部按钮加高，便于触控 */
  .blocks-bottom-bar .action-btn { height: 52px; }
}
.blocks-bottom-bar .btn-clear {
  background: linear-gradient(180deg, #F5F3FF 0%, #EDE9FE 100%);
  color: #7C3AED;
  border: 1.5px solid #C4B5FD;
}

/* ===== 闯关答题 / 积木速算 通用浮动反馈（复用 float-feedback 动画）===== */
.game-float-feedback,
.blocks-float-feedback {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 20px 32px;
  border-radius: 20px;
  font-size: 28px;
  font-weight: 800;
  pointer-events: none;
  z-index: 100;
  animation: float-feedback 1.2s ease-out forwards;
}
.game-float-feedback.correct,
.blocks-float-feedback.correct {
  background: linear-gradient(135deg, #22C55E, #16A34A);
  color: white;
  box-shadow: 0 10px 40px rgba(34,197,94,0.4);
}
.game-float-feedback.wrong,
.blocks-float-feedback.wrong {
  background: linear-gradient(135deg, #EF4444, #DC2626);
  color: white;
  box-shadow: 0 10px 40px rgba(239,68,68,0.4);
}