:root {
  --primary: #1565c0;
  --primary-dark: #0d47a1;
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1a1a1a;
  --muted: #607d8b;
  --border: #e3e6ea;
  --good: #2e7d32;
  --warn: #f9a825;
  --sev: #ef6c00;
  --bad: #c62828;
  --accent: #6a1b9a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6;
}
.app { max-width: 1200px; margin: 0 auto; padding: 24px 20px 80px; }
header.top {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff; padding: 28px 24px; border-radius: 14px; margin-bottom: 24px;
  box-shadow: 0 4px 16px rgba(21,101,192,.25);
}
header.top h1 { font-size: 24px; font-weight: 700; margin-bottom: 4px; }
header.top p { opacity: .92; font-size: 14px; }

/* 上传区 */
.upload-section { background: var(--card); border-radius: 12px; padding: 24px; margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.upload-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.upload-box { border: 2px dashed var(--border); border-radius: 10px; padding: 28px 18px;
  text-align: center; transition: all .2s; cursor: pointer; background: #fafbfc; }
.upload-box:hover, .upload-box.dragover { border-color: var(--primary); background: #e3f2fd; }
.upload-box .icon { font-size: 36px; margin-bottom: 8px; }
.upload-box .title { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.upload-box .hint { font-size: 12px; color: var(--muted); }
.upload-box.loaded { border-color: var(--good); background: #e8f5e9; border-style: solid; }
.upload-box.loaded .icon::before { content: "✓"; }

.options { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-top: 8px; }
.options label { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.options input[type="text"], .options input[type="number"] {
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; width: 140px;
}
.btn-run {
  background: var(--primary); color: #fff; border: none; padding: 11px 28px;
  border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; transition: all .2s;
}
.btn-run:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-run:disabled { background: #b0bec5; cursor: not-allowed; transform: none; }
.sample-btn { background: transparent; color: var(--primary); border: 1px solid var(--primary);
  padding: 8px 16px; border-radius: 6px; font-size: 13px; cursor: pointer; }
.sample-btn:hover { background: #e3f2fd; }
.sample-btn:disabled { border-color: #b0bec5; color: #90a4ae; cursor: not-allowed; background: transparent; }
.source-status {
  margin-top: 12px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  background: #f8fafd; color: var(--muted); font-size: 12px;
}
.source-status b { color: var(--text); }
.source-status span { color: var(--muted); margin-left: 6px; }
.source-status.is-real { background: #e8f5e9; border-color: #a5d6a7; color: var(--good); }
.source-status.is-sample, .source-status.is-synthetic { background: #fff8e1; border-color: #ffe082; color: #8a6d00; }

/* 评估任务 */
.task-section { background: var(--card); border-radius: 12px; padding: 18px 20px; margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.task-head { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.task-head h2 { font-size: 18px; color: var(--primary-dark); margin-bottom: 2px; }
.task-head p { color: var(--muted); font-size: 12px; }
.task-list { display: grid; gap: 10px; }
.task-card { border: 1px solid var(--border); border-radius: 8px; padding: 12px; display: grid;
  grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; background: #fff; }
.task-card.active { border-color: var(--primary); box-shadow: 0 0 0 2px rgba(21,101,192,.10); }
.task-title { font-weight: 700; color: var(--text); font-size: 14px; margin-bottom: 2px; }
.task-meta { color: var(--muted); font-size: 11.5px; word-break: break-all; }
.task-kpis { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.task-kpis span { background: #f8fafd; border: 1px solid var(--border); border-radius: 999px; padding: 2px 8px; font-size: 11px; color: var(--muted); }
.task-kpis b { color: var(--primary-dark); }
.task-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.mini-btn { border: 1px solid var(--border); background: #fff; color: var(--primary); border-radius: 6px; padding: 5px 9px; cursor: pointer; font-size: 12px; }
.mini-btn:hover { background: #e3f2fd; border-color: var(--primary); }
.mini-btn.danger { color: var(--bad); }
.mini-btn.danger:hover { background: #ffebee; border-color: var(--bad); }

/* 报告 */
.report { display: none; }
.report.show { display: block; }
.report-section { background: var(--card); border-radius: 10px; padding: 20px 22px; margin: 16px 0;
  box-shadow: 0 1px 3px rgba(0,0,0,.06); }
.report-section h2 {
  font-size: 18px; color: var(--primary-dark); margin-bottom: 14px;
  padding-bottom: 8px; border-bottom: 2px solid var(--primary);
}
.report-origin {
  display: inline-block; margin: 4px 0 8px; padding: 4px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 700; background: #eef2f7; color: var(--muted);
}
.report-origin.is-real, .tag.is-real { background: #e8f5e9; color: var(--good); }
.report-origin.is-sample, .report-origin.is-synthetic,
.tag.is-sample, .tag.is-synthetic { background: #fff8e1; color: #8a6d00; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin: 14px 0; }
.kpi { background: #f8fafd; border-radius: 8px; padding: 14px 16px; border-left: 3px solid var(--primary); }
.kpi .n { font-size: 22px; font-weight: 700; color: var(--primary); }
.kpi .l { font-size: 11px; color: var(--muted); margin-top: 2px; }

.warn-box { background: #fff8e1; border-left: 4px solid var(--warn); padding: 10px 14px;
  border-radius: 6px; margin: 10px 0; font-size: 13px; }
.danger-box { background: #ffebee; border-left: 4px solid var(--bad); padding: 10px 14px;
  border-radius: 6px; margin: 10px 0; font-size: 13px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.provenance-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.provenance-card { border: 1px solid var(--border); border-radius: 8px; padding: 12px; background: #fff; }
.provenance-card h3 { font-size: 14px; color: var(--primary-dark); margin-bottom: 8px; }
.provenance-card th, .audit-table th { width: 96px; color: var(--muted); font-weight: 600; }
.provenance-card td, .audit-table td { word-break: break-all; }
.chart-wrap { background: #fff; border-radius: 8px; padding: 12px; }
.chart-wrap canvas { max-height: 300px; }
.chart-img { display: block; width: 100%; max-height: 320px; object-fit: contain; }
.score-chart-wrap { max-width: 480px; margin: 0 auto; }

table { border-collapse: collapse; width: 100%; font-size: 12.5px; background: #fff; }
th, td { border: 1px solid var(--border); padding: 6px 8px; text-align: left; vertical-align: top; }
th { background: #eef2f7; font-weight: 600; position: sticky; top: 0; }
tr:hover td { background: #f8fafd; }
.tbl-wrap { max-height: 560px; overflow: auto; border-radius: 6px; }

.tag { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 10.5px; font-weight: 600; }
.g-good { background: #e8f5e9; color: var(--good); }
.g-warn { background: #fff8e1; color: var(--warn); }
.g-sev { background: #fff3e0; color: var(--sev); }
.g-bad { background: #ffebee; color: var(--bad); }

.bar { height: 7px; background: #eee; border-radius: 4px; overflow: hidden; min-width: 80px; }
.bar > span { display: block; height: 100%; }
.lvl-high { color: var(--bad); font-weight: 700; }
.lvl-mid { color: var(--sev); font-weight: 600; }
.lvl-low { color: var(--muted); }
.small { font-size: 11px; color: var(--muted); }
code { background: #f0f2f5; padding: 1px 5px; border-radius: 3px; font-size: 11.5px; }
.mono { font-family: "SF Mono", Menlo, Consolas, monospace; font-size: 11.5px; }

.progress-overlay {
  position: fixed; inset: 0; background: rgba(255,255,255,.88); display: none;
  align-items: center; justify-content: center; z-index: 999; flex-direction: column;
}
.progress-overlay.show { display: flex; }
.spinner { width: 44px; height: 44px; border: 4px solid #e3f2fd; border-top-color: var(--primary);
  border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 14px; }
@keyframes spin { to { transform: rotate(360deg); } }
.progress-text { color: var(--primary-dark); font-weight: 600; }

.empty { text-align: center; padding: 40px; color: var(--muted); }
.toc { background: #f8fafd; border-radius: 8px; padding: 14px 20px; margin: 14px 0; }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { margin: 3px 0; }
.toc a { color: var(--primary); text-decoration: none; }
.toc a:hover { text-decoration: underline; }
@media (max-width: 760px) {
  .upload-grid, .grid-2, .provenance-grid { grid-template-columns: 1fr; }
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .task-head, .task-card { grid-template-columns: 1fr; display: grid; }
  .task-actions { justify-content: flex-start; }
}

@media print {
  body { background: #fff; }
  .upload-section, .task-section, .top, .progress-overlay { display: none !important; }
  .app { max-width: none; padding: 0; }
  .report-section { box-shadow: none; border: 1px solid #ddd; break-inside: avoid; }
  .chart-wrap { break-inside: avoid; }
}