/**
 * 诊断报告页 UI Design Tokens + 组件规范
 * 风格：现代、克制、企业级（Linear/Stripe），适合打印
 * ============================================================
 * STYLE GUIDE 注释
 * ============================================================
 * .card         - 通用卡片容器，白底+淡边框
 * .hero-card    - 大指标卡，品牌渐变背景（得分/总分）
 * .mini-card    - 小指标卡，白底+icon圆背景
 * .metric-value - 指标数字 28~34px
 * .metric-label - 指标标签 muted 小字
 * .metric-sub   - 次要说明（正确率等）
 * .badge        - 标签基础，配合 .badge-success/.badge-danger/.badge-warning/.badge-neutral/.badge-info
 * .chip         - 知识点标签，.chip-primary / .chip-neutral
 * .btn-primary  - CTA 主按钮
 * .btn-secondary- 次要按钮
 * .detail-row   - 逐题行，.detail-row.correct/.wrong/.blank 控制左侧色条
 * .empty-state  - 空态：图标+说明+引导
 * .correctness-dots - 正误圆圈格点
 * ============================================================
 */

:root {
  /* Colors */
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #fbfcff;
  --border: #e6e8f0;
  --text: #111827;
  --muted: #6b7280;
  --muted-2: #9ca3af;

  /* Brand + semantic */
  --brand: #2563eb;
  --brand-2: #1d4ed8;
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #0ea5e9;

  /* Soft backgrounds for badges */
  --success-bg: #eaf7ef;
  --warning-bg: #fff7e6;
  --danger-bg: #feecec;
  --info-bg: #e8f6fe;
  --brand-bg: #e8efff;

  /* Radii */
  --r-lg: 16px;
  --r-md: 12px;
  --r-sm: 10px;

  /* Shadows (soft) */
  --shadow-1: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-2: 0 8px 24px rgba(16, 24, 40, 0.08);

  /* Spacing */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 20px;
  --s-6: 24px;
  --s-8: 32px;
  --s-10: 40px;

  /* Typography */
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --h1: 28px;
  --h2: 18px;
  --base: 14px;
  --small: 12px;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, monospace;

  /* Layout */
  --container: 1120px;
  --card-pad: 20px;
}

/* ========== 基础布局 ========== */
.report-page {
  background: var(--bg);
  min-height: 100vh;
  font-family: var(--font);
  font-size: var(--base);
  color: var(--text);
}

.report-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--s-8);
}

/* ========== A) Card 基础 ========== */
.report-page .card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-1);
  padding: var(--card-pad);
}

.report-page .card-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: var(--h2);
  color: var(--text);
  padding: var(--s-4) var(--card-pad);
  border-radius: var(--r-lg) var(--r-lg) 0 0;
}

.report-page .card-body {
  padding: var(--card-pad);
}

/* ========== B) Metric Cards ========== */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
  margin-bottom: var(--s-6);
  align-items: stretch;
}

@media (min-width: 768px) {
  .metrics-grid {
    grid-template-columns: 1.5fr 1.5fr 1fr 1fr 1fr 1fr;
    gap: var(--s-4);
  }
  .mini-card--rank { grid-column: span 2; }
}

@media (max-width: 767px) {
  .metrics-grid {
    grid-template-columns: 1fr;
  }
}

/* 大卡 hero-card：蓝色略窄，与右侧小卡等高、内容垂直居中 */
.report-page .hero-card {
  background: linear-gradient(135deg, var(--brand), var(--brand-2)) !important;
  color: #fff !important;
  border: none !important;
  box-shadow: var(--shadow-2);
  border-radius: var(--r-lg);
  padding: var(--s-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  grid-column: span 1;
}
.report-page .hero-card .metric-value,
.report-page .hero-card .metric-sub {
  color: #fff !important;
}

@media (min-width: 768px) {
  .report-page .hero-card {
    grid-column: span 2;
  }
}

/* 平板 2 列 */
@media (min-width: 576px) and (max-width: 767px) {
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .report-page .hero-card { grid-column: span 2; }
}

.hero-card .metric-value {
  font-size: 34px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.hero-card .metric-sub {
  font-size: var(--base);
  color: rgba(255, 255, 255, 0.85);
  margin-top: var(--s-1);
}

/* hero 内：分数 + 半圆 gauge（不改变整体布局，只在卡内排版） */
.hero-score-wrap {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
}
.hero-score-left {
  min-width: 0;
}
.hero-gauge {
  width: 150px;
  flex: 0 0 auto;
  text-align: center;
}
.gauge-svg {
  width: 150px;
  height: 70px;
  display: block;
  margin: 0 auto;
}
.gauge-track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.25);
  stroke-width: 10;
  stroke-linecap: round;
}
.gauge-fill {
  fill: none;
  stroke: rgba(255, 255, 255, 0.95);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 157;
  stroke-dashoffset: 157;
}
.gauge-text {
  margin-top: -6px;
}
.gauge-label {
  font-size: var(--small);
  color: rgba(255, 255, 255, 0.8);
}
.gauge-value {
  font-size: 16px;
  font-weight: 800;
  color: #fff;
}
@media (max-width: 576px) {
  .hero-score-wrap { flex-direction: column; }
  .hero-gauge { width: 140px; }
}

/* 小卡 mini-card：四个框等大，与左侧大卡等高 */
.mini-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s-4);
  display: flex;
  align-items: center;
  gap: var(--s-4);
  box-shadow: var(--shadow-1);
  min-width: 0;
}

.mini-card .icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mini-card .icon-wrap.brand { background: var(--brand-bg); color: var(--brand); }
.mini-card .icon-wrap.success { background: var(--success-bg); color: var(--success); }
.mini-card .icon-wrap.warning { background: var(--warning-bg); color: var(--warning); }
.mini-card .icon-wrap.info { background: var(--info-bg); color: var(--info); }
.mini-card .icon-wrap.neutral { background: #f3f4f6; color: var(--muted); }

.mini-card .metric-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}

.mini-card .metric-label {
  font-size: var(--small);
  color: var(--muted);
  margin-top: 2px;
  white-space: nowrap;
}

/* 总排名位置卡片：占两列，内部百分比布局优化 */
.mini-card--rank {
  min-width: 0;
}
.mini-card--rank .mini-card-rank-inner {
  flex: 1;
  min-width: 0;
}
.mini-card--rank .metric-value--rank {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25em;
  flex-wrap: nowrap;
}
.mini-card--rank .rank-prefix {
  font-size: 0.65em;
  font-weight: 600;
  color: var(--muted);
  line-height: 1.2;
}
.mini-card--rank .rank-percent {
  font-size: 1.35em;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* ========== 报告标题区 ========== */
.report-header {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand);
  border-radius: var(--r-lg);
  padding: var(--s-5) var(--s-6);
  box-shadow: var(--shadow-1);
  margin-bottom: var(--s-6);
}

.report-header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-4);
}

.report-title {
  font-size: var(--h1);
  font-weight: 700;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.02em;
}

.report-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2) var(--s-4);
  font-size: var(--base);
  color: var(--muted);
}

/* 竞赛名、时间、人名放大并右对齐 */
.report-meta.report-meta-right {
  margin-left: auto;
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  text-align: right;
}

.report-meta-item {
  display: inline-flex;
  align-items: center;
}

.report-meta-item i {
  color: var(--muted-2);
  font-size: 0.9em;
  margin-right: var(--s-2);
}

.report-meta-sep {
  width: 4px;
  height: 4px;
  background: var(--muted-2);
  border-radius: 50%;
  opacity: 0.6;
}

/* 悬浮返回顶部按钮 */
.report-back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-2);
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: opacity 0.2s, transform 0.2s;
}
.report-back-to-top:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}
.report-back-to-top.visible {
  display: flex;
}
@media print {
  .report-back-to-top { display: none !important; }
}

/* ========== C) Badge ========== */
.badge {
  font-size: var(--small);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 500;
}

.badge-success { color: var(--success); background: var(--success-bg); border-color: rgba(22, 163, 74, 0.15); }
.badge-warning { color: var(--warning); background: var(--warning-bg); border-color: rgba(245, 158, 11, 0.18); }
.badge-danger  { color: var(--danger);  background: var(--danger-bg);  border-color: rgba(239, 68, 68, 0.18); }
.badge-info    { color: var(--info);    background: var(--info-bg);    border-color: rgba(14, 165, 233, 0.18); }
.badge-neutral { color: var(--muted);   background: #f3f4f6;           border-color: rgba(107, 114, 128, 0.18); }

/* ========== D) Chip（知识点标签） ========== */
.chip {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: var(--small);
  margin-right: var(--s-1);
  margin-bottom: var(--s-1);
}

.chip-primary {
  background: var(--brand-bg);
  color: var(--brand);
}

.chip-neutral {
  background: #f3f4f6;
  color: var(--muted);
}

/* ========== E) CTA Button ========== */
.btn-primary {
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: var(--r-md);
  padding: 0 var(--s-6);
  height: 40px;
  font-size: var(--base);
  font-weight: 500;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: var(--brand-2);
  color: #fff;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0 var(--s-4);
  height: 40px;
  font-size: var(--base);
}

/* ========== 诊断结论摘要卡 ========== */
.summary-card {
  background: var(--surface-2);
  border-left: 4px solid var(--brand);
  margin-bottom: var(--s-6);
}

.summary-card .card-body {
  padding: var(--s-5);
}

.summary-card h6 {
  color: var(--text);
  font-size: var(--h2);
  margin-bottom: var(--s-4);
}

.summary-card p {
  font-size: var(--base);
  color: var(--text);
  margin-bottom: var(--s-2);
}

.summary-card p:last-child {
  margin-bottom: 0;
}

/* 参考得分位置：左侧文字，右侧正态分布图 */
.benchmark-card .card-body {
  padding: var(--s-5);
}
.benchmark-card-body--split {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-5);
  align-items: center;
}
.benchmark-text {
  flex: 1 1 200px;
  min-width: 0;
}
.benchmark-chart {
  flex: 0 1 280px;
  min-width: 0;
}
.benchmark-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--base);
  color: var(--text);
}
.benchmark-list li {
  margin-bottom: var(--s-2);
}
.benchmark-hint {
  font-size: var(--small);
  line-height: 1.5;
}

.benchmark-distribution-svg {
  width: 100%;
  height: 80px;
  display: block;
  margin-bottom: var(--s-2);
}
.benchmark-curve {
  vector-effect: non-scaling-stroke;
}
.benchmark-dot-on-curve {
  vector-effect: non-scaling-stroke;
}
.benchmark-chart-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--small);
  color: var(--muted);
  padding: 0 2px;
}
.benchmark-dot-caption {
  color: var(--danger);
  font-weight: 600;
}
@media (max-width: 600px) {
  .benchmark-card-body--split {
    flex-direction: column;
    align-items: stretch;
  }
  .benchmark-chart {
    flex: 1 1 auto;
  }
}

/* AI个性化训练包（premium SaaS 布局） */
.practice-pack-card {
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  border-radius: 20px;
  overflow: hidden;
}
.practice-pack-card-body {
  padding: 28px 32px;
}
@media (max-width: 767px) {
  .practice-pack-card-body {
    padding: 20px 24px;
  }
}
.practice-pack-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  align-items: start;
}
@media (min-width: 900px) {
  .practice-pack-grid {
    grid-template-columns: 1fr 340px;
    align-items: center;
  }
}
.practice-pack-head {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: var(--s-3);
}
.practice-pack-title {
  font-size: var(--h2);
  font-weight: 800;
  color: var(--text);
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}
.practice-pack-badge {
  font-size: 11px;
  font-weight: 600;
  color: #64748b;
  background: #f1f5f9;
  padding: 2px 8px;
  border-radius: 6px;
}
.practice-pack-desc {
  font-size: var(--base);
  color: var(--muted);
  line-height: 1.55;
  margin: 0 0 var(--s-4);
  max-width: 52em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.practice-pack-weak {
  margin-bottom: var(--s-4);
}
.practice-pack-weak-label {
  font-size: var(--small);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--s-2);
}
.practice-pack-weak-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}
.chip.chip-slate {
  font-size: var(--small);
  background: #f1f5f9;
  color: #475569;
}
.practice-pack-contents-label {
  font-size: var(--small);
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--s-2);
}
.practice-pack-contents-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: var(--small);
  color: var(--muted);
  line-height: 1.7;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px 1.5em;
}
.practice-pack-contents-grid li {
  position: relative;
  padding-left: 1.35em;
}
.practice-pack-contents-grid li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}
@media (max-width: 480px) {
  .practice-pack-contents-grid {
    grid-template-columns: 1fr;
  }
}
/* 右侧 CTA 面板（固定宽度、内嵌样式） */
.practice-pack-right {
  min-width: 0;
}
@media (min-width: 900px) {
  .practice-pack-right {
    width: 340px;
    max-width: 360px;
    justify-self: end;
  }
}
.practice-pack-cta-panel {
  background: #F8FAFC;
  border: 1px solid #E2E8F0;
  border-radius: 16px;
  padding: 18px;
}
@media (max-width: 899px) {
  .practice-pack-cta-panel {
    margin-top: var(--s-2);
  }
}
.practice-pack-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-2);
  margin-bottom: var(--s-4);
}
.practice-pack-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: var(--s-2);
  background: #fff;
  border-radius: 10px;
  border: 1px solid #E2E8F0;
}
.practice-pack-stat-icon {
  width: 18px;
  height: 18px;
  color: var(--muted);
}
.practice-pack-stat-label {
  font-size: 11px;
  color: var(--muted);
}
.practice-pack-stat-value {
  font-size: var(--base);
  font-weight: 600;
  color: var(--text);
}
.practice-pack-cta {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--s-2);
}
.practice-pack-btn {
  width: 100%;
  height: 50px;
  padding: 0 var(--s-4);
  font-size: 1rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.practice-pack-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}
.practice-pack-cta-hint {
  font-size: var(--small);
  color: var(--muted);
  margin: 0;
  text-align: center;
}
.practice-pack-completed {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--s-3, 12px) var(--s-4, 16px);
  font-size: 1rem;
  font-weight: 600;
  color: var(--success, #16a34a);
  background: var(--success-bg, #eaf7ef);
  border-radius: var(--r-md, 12px);
}

/* ========== 专家诊断型模块 ========== */
.expert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}
@media (min-width: 1024px) {
  .expert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .expert-card-wide {
    grid-column: span 2;
  }
}

.expert-card {
  padding: 0; /* 复用 card-header/card-body 的 padding */
}
.expert-card .expert-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  padding: var(--s-4) var(--card-pad);
  border-bottom: 1px solid var(--border);
}
.expert-card .expert-title {
  font-weight: 700;
  font-size: var(--h2);
  color: var(--text);
}
.expert-card .expert-body {
  padding: var(--card-pad);
}

.expert-kv {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}
@media (min-width: 768px) {
  .expert-kv {
    grid-template-columns: 1.6fr 1fr;
    align-items: center;
  }
}
.expert-big {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.expert-stars {
  margin-top: var(--s-2);
  display: inline-flex;
  gap: 2px;
}
.expert-star { color: #f5c518; }
.expert-star.expert-star-off { color: var(--muted-2); opacity: 0.9; }
.expert-small-label {
  font-size: var(--small);
  color: var(--muted);
}
.expert-range {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}
.expert-desc {
  margin-top: var(--s-4);
  border-top: 1px dashed var(--border);
  padding-top: var(--s-4);
}
.expert-text {
  margin-top: var(--s-1);
  color: var(--text);
}
.expert-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
  margin-bottom: var(--s-3);
}
.expert-list {
  margin: var(--s-3) 0 0 0;
  padding-left: 18px;
  color: var(--text);
}
.expert-list li {
  margin-bottom: 6px;
}
.expert-hint {
  margin-top: var(--s-3);
  font-size: var(--small);
}

/* 四象限简图 */
.quad-grid {
  display: grid;
  grid-template-columns: 56px 1fr 1fr;
  gap: 8px;
  margin-top: var(--s-2);
}
.quad-cell {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 10px;
  text-align: center;
  background: var(--surface-2);
  color: var(--text);
  font-size: var(--small);
}
.quad-head {
  background: #f3f4f6;
  color: var(--muted);
  font-weight: 700;
  border-style: dashed;
}
.quad-ok {
  background: var(--success-bg);
  border-color: rgba(22, 163, 74, 0.18);
}
.quad-bad {
  background: var(--danger-bg);
  border-color: rgba(239, 68, 68, 0.18);
}
.quad-num {
  display: inline-block;
  margin-top: 6px;
  font-size: 18px;
  font-weight: 800;
}

/* 错因横向条形图（纯 CSS，免额外依赖） */
.err-bars {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.err-row {
  display: grid;
  grid-template-columns: 110px 1fr 110px;
  gap: 10px;
  align-items: center;
}
@media (max-width: 575px) {
  .err-row {
    grid-template-columns: 90px 1fr 70px;
  }
}
.err-label {
  color: var(--text);
  font-weight: 600;
  font-size: var(--small);
}
.err-meta {
  text-align: right;
  color: var(--muted);
  font-size: var(--small);
}
.err-bar-wrap {
  height: 10px;
  background: #f3f4f6;
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.err-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--warning), var(--brand));
  border-radius: 999px;
}

/* ========== F) 图表区 ========== */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
  margin-bottom: var(--s-6);
}

@media (min-width: 1024px) {
  .charts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.chart-container {
  position: relative;
  height: 220px;
}

/* 每题耗时图：题多时可横向滚动，外框固定 */
.chart-scroll-wrap {
  overflow-x: auto;
  overflow-y: hidden;
  height: 180px;
  -webkit-overflow-scrolling: touch;
}
.chart-scroll-wrap .chart-container-time {
  min-width: 200px;
  height: 180px;
}

.chart-card .card-body {
  padding: var(--s-5);
}

/* ========== G) Empty State ========== */
.empty-state {
  text-align: center;
  padding: var(--s-10);
  background: var(--surface-2);
  border: 1px dashed var(--border);
  border-radius: var(--r-md);
  color: var(--muted);
  font-size: var(--base);
}

.empty-state .icon-empty {
  font-size: 32px;
  opacity: 0.5;
  margin-bottom: var(--s-3);
  color: var(--muted-2);
}

/* ========== 正误圆圈格点 ========== */
.correctness-dots {
  /* 响应式网格：容器越宽，每行题号越多；同时保持均匀铺开 */
  --dot-size: 28px;
  --dot-col-min: 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(var(--dot-col-min), 1fr));
  gap: var(--s-2);
  align-items: center;
  padding: var(--s-3) 0;
  width: 100%;
}

.correctness-dots .dot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--dot-size);
  height: var(--dot-size);
  border-radius: 50%;
  font-size: var(--small);
  font-weight: 500;
  color: #fff;
  flex-shrink: 0;
  justify-self: center;
}

.correctness-dots a.dot {
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.15s;
}
.correctness-dots a.dot:hover {
  opacity: 0.85;
}
.correctness-dots .dot-correct { background: var(--success); }
.correctness-dots .dot-wrong   { background: var(--danger); }
.correctness-dots .dot-blank  { background: var(--warning); color: var(--text); }

@media (min-width: 768px) {
  .correctness-dots {
    --dot-size: 30px;
    --dot-col-min: 36px;
    gap: var(--s-3);
  }
}

@media (min-width: 1024px) {
  .correctness-dots {
    --dot-size: 32px;
    --dot-col-min: 40px;
  }
}

.correctness-dots .dot-legend {
  width: 8px;
  height: 8px;
  font-size: 0;
  margin-right: 4px;
}

/* 右上角颜色说明（紧凑） */
.correctness-legend-compact {
  display: flex;
  gap: var(--s-3);
  font-size: 11px;
  color: var(--muted);
}
.correctness-legend-compact .legend-item {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 6px;
}
.correctness-legend-compact .legend-item.legend-correct {
  background: var(--success-bg);
}
.correctness-legend-compact .legend-item.legend-wrong {
  background: var(--danger-bg);
}
.correctness-legend-compact .legend-item.legend-blank {
  background: var(--warning-bg);
}
.correctness-legend-compact .legend-label {
  font-size: 11px;
  color: var(--muted);
}
.correctness-legend-compact .legend-correct .legend-label { color: var(--success); }
.correctness-legend-compact .legend-wrong .legend-label { color: var(--danger); }
.correctness-legend-compact .legend-blank .legend-label { color: var(--warning); }

/* ========== H) 逐题列表 ========== */
.detail-row {
  padding: var(--s-4) var(--card-pad);
  border-left: 4px solid transparent;
  scroll-margin-top: 16px;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-row:hover {
  background: var(--surface-2);
}

.detail-row.correct { border-left-color: var(--success); }
.detail-row.wrong   { border-left-color: var(--danger); }
.detail-row.blank   { border-left-color: var(--warning); }

.detail-row .question-title {
  font-weight: 600;
  color: var(--text);
}

.detail-row .time-compare {
  max-width: 160px;
}

.detail-row .time-bar-row {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  margin-bottom: 2px;
  font-size: var(--small);
}

.detail-row .time-bar-row:last-child { margin-bottom: 0; }

.detail-row .time-bar-track {
  flex: 1;
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.detail-row .time-bar-fill {
  height: 100%;
  border-radius: 3px;
  min-width: 2px;
}

.detail-row .time-bar-fill.brand { background: var(--brand); }
.detail-row .time-bar-fill.neutral { background: var(--muted-2); }

.question-panel,
.solution-panel {
  padding: var(--s-4);
  background: var(--surface-2);
  border-radius: var(--r-sm);
  min-height: 60px;
}

.question-panel {
  border-bottom: 1px solid var(--border);
}

@media (min-width: 768px) {
  .question-panel {
    border-bottom: none;
    border-right: 1px solid var(--border);
  }
}

.panel-title {
  font-size: var(--small);
  color: var(--muted);
  margin-bottom: var(--s-2);
}

/* ========== 打印样式 ========== */
@media print {
  body * { visibility: hidden; }
  .report-page,
  .report-page * { visibility: visible; }

  .report-page {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    background: #fff !important;
    padding: 0;
  }

  .report-container { padding: 0; }

  .no-print,
  .navbar,
  nav,
  .btn,
  button[type="button"],
  .btn-primary,
  .btn-secondary {
    display: none !important;
  }

  .report-page .card,
  .mini-card,
  .report-header,
  .summary-card {
    box-shadow: none !important;
    border: 1px solid #e5e7eb !important;
    background: #fff !important;
  }

  .hero-card {
    background: #eef2ff !important;
    border: 1px solid #c7d2fe !important;
  }

  .detail-row {
    break-inside: avoid;
  }

  .detail-row .collapse {
    display: block !important;
  }

  a[href]:after { content: none !important; }

  @page {
    size: A4;
    margin: 1.5cm;
  }
}