/* ===========================================================
   苏教版二年级数学下册 · 第七单元《图形的初步认识（三）》
   动手互动实验室专属样式
   所有选择器均收拢在 .b1lab-wrap.b7lab-wrap 独立作用域内
   严格遵循：无外网链接、保证 ≥44px 触控热区、支持 375px 窄屏与减少动态效果
   =========================================================== */

/* 本章特有组件用到的颜色变量（主色跟公共外观一致：薄荷绿 / 思维挑战紫） */
.b1lab-wrap.b7lab-wrap {
  --b7-primary: #18B28E;
  --b7-primary-dark: #0F8A6D;
  --b7-primary-light: #E6FBF5;
  --b7-purple: #7C5CFA;
  --b7-blue: #0284C7;
  --b7-blue-dark: #0369A1;
  --b7-teal: #0D9488;
  --b7-ink: #1E293B;
}

/* 触控防抖与即时响应（外壳按钮的样式在公共 b1-lab.css） */
.b1lab-wrap.b7lab-wrap .shape-card,
.b1lab-wrap.b7lab-wrap .mini-shape-chip,
.b1lab-wrap.b7lab-wrap .grid-cell,
.b1lab-wrap.b7lab-wrap .option-btn,
.b1lab-wrap.b7lab-wrap .caliper-card {
  touch-action: manipulation;
}

/* 焦点可见环：仅使用 focus-visible，不使用裸焦点规则 */
.b1lab-wrap.b7lab-wrap [tabindex]:focus-visible {
  outline: 3px solid #18B28E;
  outline-offset: 2px;
}

/* 舞台里的撤销 / 重做 / 重置（按钮外观用公共 .btn-tool） */
.b1lab-wrap.b7lab-wrap .b7-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.b1lab-wrap.b7lab-wrap .b7-tools .btn-tool:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

/* 关卡内容区：各块之间留出间距 */
.b1lab-wrap.b7lab-wrap .b7-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* 动感操作区容器 */
.b1lab-wrap.b7lab-wrap .workbench-panel {
  background: #F8FAFC;
  border: 2px dashed #CBD5E1;
  border-radius: 14px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

/* 常用交互按钮 */
.b1lab-wrap.b7lab-wrap .act-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  min-width: 44px;
  padding: 8px 18px;
  border-radius: 12px;
  border: 2px solid transparent;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.b1lab-wrap.b7lab-wrap .act-btn.primary {
  background: var(--b7-primary);
  color: #FFFFFF;
  border-color: var(--b7-primary-dark);
  box-shadow: 0 3px 8px rgba(24, 178, 142, 0.28);
}

.b1lab-wrap.b7lab-wrap .act-btn.secondary {
  background: #F1F5F9;
  color: #334155;
  border-color: #CBD5E1;
}

.b1lab-wrap.b7lab-wrap .act-btn.teal {
  background: var(--b7-teal);
  color: #FFFFFF;
  border-color: #0F766E;
  box-shadow: 0 3px 8px rgba(13, 148, 136, 0.25);
}

.b1lab-wrap.b7lab-wrap .act-btn.blue {
  background: var(--b7-blue);
  color: #FFFFFF;
  border-color: var(--b7-blue-dark);
  box-shadow: 0 3px 8px rgba(2, 132, 199, 0.25);
}

.b1lab-wrap.b7lab-wrap .act-btn.purple {
  background: var(--b7-purple);
  color: #FFFFFF;
  border-color: #5B38DF;
  box-shadow: 0 3px 8px rgba(124, 92, 250, 0.28);
}

.b1lab-wrap.b7lab-wrap .act-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

/* 图形卡片与展示条 */
.b1lab-wrap.b7lab-wrap .shape-cards-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  width: 100%;
}

.b1lab-wrap.b7lab-wrap .shape-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 80px;
  min-height: 80px;
  padding: 8px;
  border-radius: 14px;
  border: 2px solid #E2E8F0;
  background: #FFFFFF;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.b1lab-wrap.b7lab-wrap .shape-card:hover {
  transform: translateY(-2px);
  border-color: #94A3B8;
}

.b1lab-wrap.b7lab-wrap .shape-card.selected {
  border-color: var(--b7-primary);
  background: var(--b7-primary-light);
  box-shadow: 0 3px 10px rgba(24, 178, 142, 0.22);
}

.b1lab-wrap.b7lab-wrap .shape-card.dimmed {
  opacity: 0.35;
  filter: grayscale(80%);
}

.b1lab-wrap.b7lab-wrap .shape-svg {
  width: 58px;
  height: 58px;
  display: block;
}

.b1lab-wrap.b7lab-wrap .shape-name {
  font-size: 13px;
  font-weight: 800;
  color: var(--b7-ink);
  margin-top: 4px;
}

/* 分类箱容器 */
.b1lab-wrap.b7lab-wrap .sort-boxes-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  width: 100%;
}

.b1lab-wrap.b7lab-wrap .sort-box {
  background: #FFFFFF;
  border: 2px solid #E2E8F0;
  border-radius: 14px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 120px;
}

.b1lab-wrap.b7lab-wrap .sort-box.solid-box {
  border-color: #93C5FD;
  background: #F8FAFC;
}

.b1lab-wrap.b7lab-wrap .sort-box.flat-box {
  border-color: #FED7AA;
  background: #F8FAFC;
}

.b1lab-wrap.b7lab-wrap .sort-box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1.5px solid #E2E8F0;
  padding-bottom: 6px;
  font-size: 14px;
  font-weight: 800;
}

.b1lab-wrap.b7lab-wrap .sort-box-items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 60px;
  align-content: flex-start;
}

.b1lab-wrap.b7lab-wrap .mini-shape-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: 8px;
  background: #FFFFFF;
  border: 1.5px solid #CBD5E1;
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  min-height: 36px;
}

/* 拓印工作台 */
.b1lab-wrap.b7lab-wrap .stamp-workspace {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  width: 100%;
}

.b1lab-wrap.b7lab-wrap .stamp-paper {
  width: 100%;
  max-width: 340px;
  min-height: 140px;
  background: #FFFBEB;
  border: 2px dashed #F59E0B;
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: center;
}

.b1lab-wrap.b7lab-wrap .stamp-mark {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  border: 1.5px solid #F59E0B;
  animation: popIn 0.3s ease;
}

/* 卡尺与柱体测量 */
.b1lab-wrap.b7lab-wrap .caliper-display {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.b1lab-wrap.b7lab-wrap .caliper-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px;
  background: #FFFFFF;
  border: 2px solid #E2E8F0;
  border-radius: 12px;
  min-width: 100px;
}

.b1lab-wrap.b7lab-wrap .caliper-measure-line {
  font-size: 13px;
  font-weight: 800;
  color: #2563EB;
}

/* 立体分层方块透视 */
.b1lab-wrap.b7lab-wrap .cube-layer-workspace {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  width: 100%;
}

.b1lab-wrap.b7lab-wrap .cube-layer-svg-box {
  width: 100%;
  max-width: 320px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #F8FAFC;
  border-radius: 14px;
  border: 1.5px solid #CBD5E1;
}

.b1lab-wrap.b7lab-wrap .cube-layer-stats {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
}

/* 盛水容器与量杯 */
.b1lab-wrap.b7lab-wrap .water-beakers-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  align-items: flex-end;
  min-height: 180px;
  padding: 10px;
  width: 100%;
}

.b1lab-wrap.b7lab-wrap .beaker-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.b1lab-wrap.b7lab-wrap .beaker-glass {
  position: relative;
  background: rgba(224, 242, 254, 0.4);
  border: 2px solid #0284C7;
  border-top: none;
  border-radius: 0 0 8px 8px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  box-shadow: inset 0 0 10px rgba(2, 132, 199, 0.1);
}

.b1lab-wrap.b7lab-wrap .beaker-water {
  width: 100%;
  background: linear-gradient(180deg, #38BDF8 0%, #0284C7 100%);
  opacity: 0.85;
  transition: height 0.4s ease;
}

.b1lab-wrap.b7lab-wrap .beaker-level-mark {
  position: absolute;
  right: 4px;
  font-size: 11px;
  font-weight: 800;
  color: #0369A1;
}

.b1lab-wrap.b7lab-wrap .beaker-label {
  font-size: 14px;
  font-weight: 900;
  color: var(--b7-ink);
}

/* 方格纸画板 */
.b1lab-wrap.b7lab-wrap .grid-board {
  display: grid;
  gap: 2px;
  background: #CBD5E1;
  padding: 2px;
  border-radius: 6px;
  user-select: none;
}

.b1lab-wrap.b7lab-wrap .grid-cell {
  width: 32px;
  height: 32px;
  background: #FFFFFF;
  cursor: pointer;
  transition: background 0.15s ease;
}

.b1lab-wrap.b7lab-wrap .grid-cell.colored {
  background: var(--b7-primary);
}

.b1lab-wrap.b7lab-wrap.wisdom-mode .grid-cell.colored {
  background: var(--b7-purple);
}

/* 反馈条：基础样式在公共 b1-lab.css（warn 用 .hint-warm），这里只补“答对”的绿色 */
.b1lab-wrap.b7lab-wrap .feedback-msg.succ {
  background: #F0FDF4;
  border: 1.5px solid #86EFAC;
  color: #15803D;
}

/* 结论选项区 */
.b1lab-wrap.b7lab-wrap .options-area {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.b1lab-wrap.b7lab-wrap .options-title {
  font-size: 15px;
  font-weight: 900;
  color: #334155;
  display: flex;
  align-items: center;
  gap: 6px;
}

.b1lab-wrap.b7lab-wrap .option-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 2px solid #E2E8F0;
  background: #FFFFFF;
  color: #1E293B;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s ease;
}

.b1lab-wrap.b7lab-wrap .option-btn:hover {
  border-color: #94A3B8;
  background: #F8FAFC;
}

.b1lab-wrap.b7lab-wrap .option-btn .opt-badge {
  flex: 0 0 28px;
  height: 28px;
  border-radius: 8px;
  background: #F1F5F9;
  border: 1.5px solid #CBD5E1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 900;
  color: #475569;
}

/* 动画 */
@keyframes popIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

/* 移动端 375px 窄屏适配 */
@media (max-width: 600px) {
  .b1lab-wrap.b7lab-wrap .sort-boxes-container {
    grid-template-columns: 1fr;
  }

  .b1lab-wrap.b7lab-wrap .option-btn {
    font-size: 13.5px;
    padding: 8px 10px;
  }

  .b1lab-wrap.b7lab-wrap .shape-card {
    min-width: 66px;
    min-height: 66px;
    padding: 6px;
  }

  .b1lab-wrap.b7lab-wrap .shape-svg {
    width: 44px;
    height: 44px;
  }

  .b1lab-wrap.b7lab-wrap .water-beakers-row {
    gap: 8px;
  }
}

/* 减少动态效果 */
@media (prefers-reduced-motion: reduce) {
  .b1lab-wrap.b7lab-wrap * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}