:root {
  --bg: #f5f7fa;
  --surface: #fff;
  --text: #1f2329;
  --muted: #646a73;
  --line: #e8e8e8;
  --blue: #1677ff;
  --win: #389e0d;
  --win-bg: #f6ffed;
  --lose: #cf1322;
  --lose-bg: #fff2f0;
  --warn: #d48806;
  --warn-bg: #fffbe6;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, "PingFang SC", sans-serif; background: var(--bg); color: var(--text); }
.topbar {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  padding: 14px 20px; background: var(--surface); border-bottom: 1px solid var(--line);
}
.topbar h1 { margin: 0; font-size: 1.15rem; }
.subtitle { margin: 4px 0 0; color: var(--muted); font-size: 0.85rem; }
.admin-nav { display: flex; gap: 12px; align-items: center; font-size: 0.9rem; }
.admin-nav a { color: var(--muted); text-decoration: none; }
.admin-nav a.active, .admin-nav a:hover { color: var(--blue); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; margin: 16px 20px 0; }
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.row input[type="text"] { flex: 1; min-width: 200px; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; }
button.primary { background: var(--blue); color: #fff; border: none; padding: 8px 16px; border-radius: 8px; cursor: pointer; }
button.secondary { background: var(--surface); color: var(--text); border: 1px solid var(--line); padding: 8px 16px; border-radius: 8px; cursor: pointer; }
button.primary:disabled { opacity: 0.6; cursor: not-allowed; }
.msg.err { background: var(--lose-bg); color: var(--lose); padding: 10px; border-radius: 8px; margin: 12px 20px 0; }
.hidden { display: none !important; }
.stats { display: flex; flex-wrap: wrap; gap: 8px; padding: 12px 20px 0; }
.stat { background: #eff6ff; color: var(--blue); padding: 4px 10px; border-radius: 999px; font-size: 0.82rem; font-weight: 600; }
.tabs { display: flex; gap: 4px; padding: 12px 20px 0; flex-wrap: wrap; }
.tab { border: none; background: transparent; padding: 8px 12px; border-radius: 8px 8px 0 0; cursor: pointer; color: var(--muted); }
.tab.active { background: var(--surface); color: var(--blue); font-weight: 600; border: 1px solid var(--line); border-bottom-color: var(--surface); }
main { padding: 0 20px 64px; max-width: 1100px; }
.panel { display: none; }
.panel.active { display: block; }
.panel .card { margin-left: 0; margin-right: 0; }
.panel h2 { margin: 0 0 8px; font-size: 1.05rem; }
.meta-row { color: var(--muted); font-size: 0.85rem; margin-bottom: 8px; }
.badge { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 0.75rem; font-weight: 600; }
.badge-yes { background: var(--win-bg); color: var(--win); }
.badge-no { background: var(--lose-bg); color: var(--lose); }
.badge-neutral { background: var(--warn-bg); color: var(--warn); }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { border-bottom: 1px solid var(--line); padding: 8px 6px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 0.78rem; }
.evidence { color: var(--muted); font-size: 0.82rem; vertical-align: top; }
.evidence-list { margin: 0; padding-left: 1.1rem; list-style: disc; }
.evidence-list li { margin: 0 0 6px; line-height: 1.45; }
.evidence-list li:last-child { margin-bottom: 0; }
.demand-feature { font-weight: 500; }
.demand-detail { margin-top: 8px; font-size: 0.82rem; color: var(--text); line-height: 1.55; }
.detail-block { margin-top: 6px; }
.detail-label { display: inline-block; min-width: 2.5em; color: var(--muted); font-weight: 600; margin-right: 6px; }
.manual-steps { margin: 4px 0 0 1.2em; padding: 0; }
.manual-steps li { margin: 2px 0; }
.source-links { margin-top: 6px; font-size: 0.78rem; line-height: 1.5; }
.source-links a { color: var(--blue); text-decoration: none; }
.source-links a:hover { text-decoration: underline; }
.source-links .sep { color: var(--muted); margin: 0 4px; }
.sig-link { font-weight: 400; margin-left: 4px; color: var(--blue); text-decoration: none; }
.sig-link:hover { text-decoration: underline; }
.video-card .head { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 6px; }
.video-card a { color: var(--blue); word-break: break-all; }
.hook { background: var(--bg); border-radius: 8px; padding: 8px 10px; font-size: 0.88rem; margin: 8px 0; }
.item-row { padding: 10px 0; border-bottom: 1px solid var(--line); }
.comment { background: var(--bg); border-radius: 8px; padding: 6px 8px; font-size: 0.82rem; margin-top: 6px; }
.batch-toolbar { margin-bottom: 12px; }
.batch-toolbar select, .run-toolbar select { margin-left: 8px; padding: 6px 8px; border-radius: 6px; border: 1px solid var(--line); }
.run-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 0; }
.run-toolbar label { font-size: 0.9rem; }
.empty { color: var(--muted); text-align: center; padding: 32px; }
.foot { position: fixed; left: 0; right: 0; bottom: 0; padding: 8px 20px; background: var(--surface); border-top: 1px solid var(--line); font-size: 0.78rem; color: var(--muted); }
.brief-form h2 { margin: 0 0 4px; font-size: 1rem; }
.field { display: block; margin-top: 10px; }
.field span { display: block; font-size: 0.82rem; color: var(--muted); margin-bottom: 4px; }
.field textarea, .field input { width: 100%; padding: 8px 12px; border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.run-row { margin-top: 14px; justify-content: space-between; }
.inline-check { font-size: 0.85rem; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.progress-wrap { margin-top: 14px; }
.progress-bar { height: 8px; background: #eef2f6; border-radius: 4px; overflow: hidden; }
.progress-bar > div { height: 100%; background: var(--blue); width: 0; transition: width 0.35s ease; }
#run-progress-text { font-size: 0.9rem; margin-top: 8px; color: var(--text); }
#run-progress-detail { font-size: 0.8rem; color: var(--muted); margin-top: 4px; }