:root{
  --primary:#667eea;
  --secondary:#764ba2;
  --indigo:#4f46e5;
  --violet:#7c3aed;
  --gold:#f5b301;
  --gold-soft:#fbbf24;
  --ink:#1e293b;
  --text:#334155;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#f5f6fb;
  --card:#ffffff;
  --good:#15803d;
  --warn:#b91c1c;
  --radius:16px;
  --shadow:0 10px 40px rgba(30,41,59,.08);
  --shadow-hover:0 20px 50px rgba(79,70,229,.14);
}
*{box-sizing:border-box;margin:0;padding:0;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
button,input,select{font:inherit;}
.wrap{max-width:1180px;margin:0 auto;padding:0 22px;}
.topbar{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid rgba(226,232,240,.8);
  backdrop-filter:blur(10px);
}
.topbar-inner{
  max-width:1200px;
  margin:0 auto;
  height:68px;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand img{height:40px;display:block;}
.brand span{font-weight:900;color:var(--ink);}
.topnav{display:flex;gap:8px;flex-wrap:wrap;}
.topnav a{
  padding:8px 13px;
  border-radius:10px;
  color:var(--muted);
  font-weight:700;
  font-size:14px;
}
.topnav a:hover{background:#eef2ff;color:var(--indigo);}
.hero{
  color:#fff;
  background:linear-gradient(135deg,#312e81 0%,#4f46e5 48%,#7c3aed 100%);
  padding:58px 0 48px;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);
  gap:26px;
  align-items:end;
}
.kicker{
  color:#fde68a;
  font-size:13px;
  letter-spacing:1.6px;
  text-transform:uppercase;
  font-weight:900;
  margin-bottom:8px;
}
.hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.2;
  letter-spacing:0;
  margin-bottom:12px;
}
.hero p{max-width:760px;opacity:.94;}
.privacy-card{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.34);
  border-radius:var(--radius);
  padding:18px;
}
.privacy-card b{display:block;margin-bottom:6px;color:#fde68a;}
.privacy-card p{font-size:13.5px;}
.block{padding:34px 0 8px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:16px;
}
.section-head div{display:flex;align-items:center;gap:10px;}
.section-head span{
  width:32px;
  height:32px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,var(--indigo),var(--violet));
  color:#fff;
  font-weight:900;
  font-size:13px;
}
.section-head h2{font-size:1.32rem;color:var(--ink);letter-spacing:0;}
.section-head p{color:var(--muted);font-size:13.5px;max-width:620px;text-align:right;}
.import-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 390px;
  gap:18px;
  align-items:stretch;
}
.dropzone{
  min-height:170px;
  border:2px dashed #c7bfff;
  background:linear-gradient(135deg,#fbfbff,#f7f4ff);
  border-radius:var(--radius);
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:8px;
  color:var(--muted);
  cursor:pointer;
  transition:.2s;
}
.dropzone input{display:none;}
.dropzone strong{font-size:1.2rem;color:var(--ink);}
.dropzone:hover,.dropzone.dragover{
  border-color:var(--violet);
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.status-card,.table-card,.export-card,.filter-panel,.detail-panel,.summary-box{
  background:var(--card);
  border:1px solid rgba(0,0,0,.04);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.status-card{padding:18px;}
.status-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.status-grid div,.metric{
  border:1px solid var(--line);
  border-radius:13px;
  padding:13px;
  background:#fff;
}
.status-grid b,.metric b{
  display:block;
  color:var(--ink);
  font-size:1.35rem;
  line-height:1.2;
}
.status-grid span,.metric span{
  display:block;
  color:var(--muted);
  font-size:12.5px;
  margin-top:4px;
}
.button-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px;}
.sample-tip{
  margin:-4px 0 14px;
  border:1px dashed #d8ccff;
  background:#faf9ff;
  color:var(--muted);
  border-radius:12px;
  padding:10px 12px;
  font-size:13.5px;
}
.sample-note{
  margin-top:10px;
  color:var(--muted);
  font-size:12.5px;
  line-height:1.55;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 16px;
  border-radius:11px;
  border:0;
  cursor:pointer;
  font-weight:800;
  color:var(--text);
  transition:.18s;
}
.btn:hover{transform:translateY(-2px);}
.btn-main{background:linear-gradient(135deg,var(--indigo),var(--violet));color:#fff;box-shadow:0 8px 20px rgba(79,70,229,.24);}
.btn-line{background:#fff;border:1.5px solid var(--line);}
.btn-line:hover{border-color:var(--violet);color:var(--violet);}
.btn-gold{background:var(--gold);color:#3b2f00;box-shadow:0 8px 20px rgba(245,179,1,.24);}
.error-list{margin-top:14px;display:grid;gap:8px;}
.error-item{
  border:1px solid #fecaca;
  background:#fff7f7;
  color:#991b1b;
  border-radius:12px;
  padding:10px 12px;
  font-size:13px;
}
.filter-panel{
  padding:18px;
  display:grid;
  grid-template-columns:repeat(4,minmax(160px,1fr));
  gap:14px;
}
.field label{
  display:block;
  font-size:12.5px;
  font-weight:900;
  color:var(--ink);
  margin-bottom:6px;
}
.field select{
  width:100%;
  min-height:40px;
  border:1.5px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--text);
  padding:7px 10px;
}
.field input{
  width:100%;
  min-height:40px;
  border:1.5px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--text);
  padding:7px 10px;
}
.field input:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 3px rgba(124,58,237,.12);}
.field select:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 3px rgba(124,58,237,.12);}
.online-panel{
  background:var(--card);
  border:1px solid rgba(0,0,0,.04);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
}
.online-controls{
  display:grid;
  grid-template-columns:1.2fr 1.4fr 1fr auto;
  gap:14px;
  align-items:end;
}
.online-actions{
  display:flex;
  align-items:end;
  min-height:68px;
}
.online-status{
  margin-top:14px;
  border:1px dashed #d8ccff;
  background:#faf9ff;
  color:var(--muted);
  border-radius:12px;
  padding:10px 12px;
  font-size:13.5px;
}
.online-status.ok{border-color:#bbf7d0;background:#f0fdf4;color:#166534;}
.online-status.warn{border-color:#fed7aa;background:#fff7ed;color:#9a3412;}
.online-status.loading{border-color:#bfdbfe;background:#eff6ff;color:#1d4ed8;}
.report-export-panel{
  display:flex;
  justify-content:space-between;
  gap:14px;
  align-items:flex-start;
  margin-top:14px;
  border:1px solid #d8ccff;
  background:#faf9ff;
  border-radius:13px;
  padding:14px;
}
.report-export-panel b{
  display:block;
  color:var(--ink);
  font-size:14px;
  margin-bottom:3px;
}
.report-export-panel span{
  display:block;
  color:var(--muted);
  font-size:12.5px;
  line-height:1.55;
}
.report-export-actions{
  display:flex;
  justify-content:flex-end;
  flex-wrap:wrap;
  gap:8px;
}
.report-export-actions .btn{
  padding:8px 11px;
  font-size:12.5px;
  min-height:36px;
}
.report-export-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  background:var(--card);
  border:1px solid rgba(0,0,0,.04);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px;
}
.report-export-grid .btn{
  width:100%;
  min-height:46px;
  text-align:center;
}
.online-metrics{margin-top:14px;}
.online-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  margin-top:14px;
}
.online-card{
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  overflow:hidden;
}
.online-card.wide{grid-column:1/-1;}
.online-card-head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  background:#fbfbff;
}
.online-card-head h3{
  color:var(--ink);
  font-size:1rem;
}
.online-card-head span{
  color:var(--violet);
  font-weight:900;
  font-size:12.5px;
}
.online-table{
  border:0;
  border-radius:0;
  box-shadow:none;
}
.online-list{
  display:grid;
  gap:10px;
  padding:14px;
}
.online-list-item{
  border:1px solid var(--line);
  border-radius:12px;
  padding:10px 12px;
  background:#fff;
}
.online-list-item b{
  display:block;
  color:var(--ink);
  font-size:13.5px;
}
.online-list-item span{
  display:block;
  margin-top:3px;
  color:var(--muted);
  font-size:12.5px;
}
.online-analysis-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  padding:14px;
}
.analysis-chart{
  border:1px solid var(--line);
  border-radius:13px;
  background:#fff;
  padding:14px;
  min-height:220px;
}
.analysis-chart h4{
  color:var(--ink);
  font-size:14px;
  margin-bottom:12px;
}
.analysis-empty{
  min-height:150px;
  display:grid;
  place-items:center;
  color:var(--muted);
  border:1px dashed #d8ccff;
  background:#faf9ff;
  border-radius:12px;
  text-align:center;
  padding:14px;
  font-size:13px;
}
.analysis-bars{
  display:grid;
  gap:10px;
}
.analysis-bar-row{
  display:grid;
  grid-template-columns:minmax(92px,140px) minmax(0,1fr) 48px;
  gap:9px;
  align-items:center;
}
.analysis-bar-label{
  color:var(--ink);
  font-weight:800;
  font-size:12.5px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.analysis-bar-track{
  height:10px;
  border-radius:999px;
  background:#eef2f7;
  overflow:hidden;
}
.analysis-bar-track i{
  display:block;
  height:100%;
  min-width:2px;
  border-radius:999px;
  background:linear-gradient(90deg,#0f766e,#14b8a6);
}
.analysis-bar-value{
  color:var(--ink);
  font-size:12.5px;
  font-weight:900;
  text-align:right;
}
.analysis-bar-meta{
  grid-column:2/4;
  color:var(--muted);
  font-size:11.5px;
  margin-top:-5px;
}
.timeline-list{
  display:grid;
  gap:10px;
  position:relative;
}
.timeline-item{
  position:relative;
  border-left:3px solid #c4b5fd;
  padding:0 0 0 12px;
}
.timeline-item b{
  display:block;
  color:var(--ink);
  font-size:13px;
}
.timeline-item span{
  display:block;
  color:var(--muted);
  font-size:12px;
  margin-top:2px;
}
.teacher-advice-list{
  display:grid;
  gap:10px;
  padding:14px;
}
.teacher-advice-item{
  display:grid;
  grid-template-columns:42px minmax(0,1fr);
  gap:12px;
  align-items:start;
  border:1px solid #fde68a;
  background:#fffdf2;
  border-radius:13px;
  padding:12px 14px;
}
.teacher-advice-item span{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--gold);
  color:#3b2f00;
  font-weight:900;
  font-size:12px;
}
.teacher-advice-item p{
  color:#78350f;
  font-size:13.5px;
  line-height:1.65;
}
.mini-bar{
  height:8px;
  margin-top:8px;
  background:#eef2f7;
  border-radius:999px;
  overflow:hidden;
}
.mini-bar i{
  display:block;
  height:100%;
  min-width:2px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--indigo),var(--violet));
}
.muted{color:var(--muted);font-size:12px;}
.metric-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;
}
.metric{box-shadow:var(--shadow);}
.metric b{font-size:1.55rem;color:var(--violet);}
.chart-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.chart-card{
  background:var(--card);
  border:1px solid rgba(0,0,0,.04);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:16px;
}
.chart-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  margin-bottom:12px;
}
.chart-head h3{
  color:var(--ink);
  font-size:1rem;
  letter-spacing:0;
}
.chart-head span{
  flex:0 0 auto;
  color:var(--violet);
  background:#f3efff;
  border-radius:999px;
  padding:3px 9px;
  font-size:11.5px;
  font-weight:900;
}
.chart-body{
  min-height:250px;
  border:1px solid var(--line);
  border-radius:13px;
  background:linear-gradient(180deg,#ffffff,#fbfbff);
  padding:14px;
  overflow:auto;
}
.chart-note{
  margin-top:10px;
  color:var(--muted);
  font-size:12.5px;
}
.chart-empty{
  height:220px;
  display:grid;
  place-items:center;
  color:var(--muted);
  text-align:center;
  border:1px dashed #d8ccff;
  border-radius:12px;
  background:#faf9ff;
  padding:16px;
}
.bar-chart{
  display:grid;
  gap:11px;
}
.bar-row{
  display:grid;
  grid-template-columns:minmax(92px,150px) minmax(160px,1fr) auto;
  gap:10px;
  align-items:center;
  font-size:12.5px;
}
.bar-label{
  color:var(--ink);
  font-weight:800;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.bar-track{
  height:12px;
  border-radius:999px;
  background:#eef2f7;
  overflow:hidden;
}
.bar-fill{
  display:block;
  height:100%;
  min-width:2px;
  border-radius:999px;
  background:linear-gradient(90deg,var(--indigo),var(--violet));
}
.bar-fill.gold{background:linear-gradient(90deg,#f59e0b,var(--gold));}
.bar-fill.green{background:linear-gradient(90deg,#0f766e,#14b8a6);}
.bar-value{
  color:var(--muted);
  min-width:44px;
  text-align:right;
  font-weight:800;
}
.grouped-chart{
  display:grid;
  grid-auto-flow:column;
  grid-auto-columns:minmax(74px,1fr);
  align-items:end;
  gap:12px;
  min-height:220px;
}
.group-col{
  display:grid;
  grid-template-rows:1fr auto;
  gap:8px;
  min-height:220px;
}
.group-bars{
  display:flex;
  align-items:end;
  justify-content:center;
  gap:6px;
  height:190px;
  border-bottom:1px solid var(--line);
}
.vbar{
  width:22px;
  min-height:2px;
  border-radius:8px 8px 0 0;
  background:linear-gradient(180deg,var(--indigo),var(--violet));
  position:relative;
}
.vbar.post{background:linear-gradient(180deg,#0f766e,#14b8a6);}
.vbar.gold{background:linear-gradient(180deg,#f59e0b,var(--gold));}
.vbar em{
  position:absolute;
  left:50%;
  bottom:calc(100% + 4px);
  transform:translateX(-50%);
  color:var(--muted);
  font-style:normal;
  font-size:10.5px;
  font-weight:800;
  white-space:nowrap;
}
.group-label{
  color:var(--ink);
  font-size:12px;
  font-weight:900;
  text-align:center;
  white-space:nowrap;
}
.chart-legend{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:10px;
  color:var(--muted);
  font-size:12px;
  font-weight:800;
}
.chart-legend i{
  display:inline-block;
  width:10px;
  height:10px;
  border-radius:3px;
  margin-right:5px;
  vertical-align:-1px;
  background:var(--violet);
}
.chart-legend i.post{background:#0f766e;}
.chart-legend i.gold{background:var(--gold);}
.table-card{padding:0;overflow:hidden;}
.table-scroll{overflow:auto;max-height:560px;}
table{
  width:100%;
  border-collapse:collapse;
  font-size:13px;
}
th,td{
  padding:10px 12px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
  white-space:nowrap;
}
th{
  position:sticky;
  top:0;
  z-index:2;
  background:#f1f5ff;
  color:var(--ink);
  font-weight:900;
}
td.wrap-text{white-space:normal;min-width:180px;max-width:300px;}
tr.clickable{cursor:pointer;}
tr.clickable:hover{background:#faf9ff;}
.tag{
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  padding:3px 9px;
  background:#eef2ff;
  color:var(--indigo);
  font-weight:800;
  font-size:12px;
}
.tag.good{background:#dcfce7;color:#166534;}
.tag.warn{background:#fee2e2;color:#991b1b;}
.empty{
  padding:28px;
  text-align:center;
  color:var(--muted);
}
.detail-panel{display:none;margin-top:18px;padding:22px;}
.detail-panel.show{display:block;}
.detail-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  gap:14px;
  margin-bottom:16px;
}
.detail-head h3{color:var(--ink);font-size:1.2rem;}
.detail-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.detail-section{
  border:1px solid var(--line);
  border-radius:13px;
  padding:14px;
  background:#fff;
}
.detail-section.full{grid-column:1/-1;}
.detail-section h4{
  color:var(--ink);
  font-size:14px;
  margin-bottom:8px;
}
.kv{display:grid;grid-template-columns:120px 1fr;gap:6px 10px;font-size:13px;}
.kv b{color:var(--muted);}
.list{display:grid;gap:8px;}
.list-item{
  border:1px solid var(--line);
  border-radius:10px;
  padding:9px 10px;
  background:#fbfbff;
  font-size:13px;
}
.list-item b{display:block;color:var(--ink);}
.list-item span{display:block;color:var(--muted);margin-top:2px;}
.export-card{
  padding:18px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.summary-box{
  margin-top:14px;
  padding:16px;
  white-space:pre-wrap;
  color:var(--text);
  font-size:13.5px;
}
.toast{
  position:fixed;
  left:50%;
  bottom:24px;
  transform:translateX(-50%) translateY(20px);
  opacity:0;
  pointer-events:none;
  background:#0f172a;
  color:#fff;
  border-radius:999px;
  padding:10px 16px;
  font-size:13px;
  transition:.24s;
  z-index:100;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
@media (max-width:900px){
  .hero-grid,.import-grid,.detail-grid{grid-template-columns:1fr;}
  .online-controls,.online-grid{grid-template-columns:1fr;}
  .report-export-panel{flex-direction:column;}
  .report-export-actions{justify-content:flex-start;}
  .report-export-grid{grid-template-columns:1fr 1fr;}
  .online-analysis-grid{grid-template-columns:1fr;}
  .online-actions{min-height:0;}
  .filter-panel{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .chart-grid{grid-template-columns:1fr;}
  .section-head{align-items:flex-start;flex-direction:column;}
  .section-head p{text-align:left;}
}
@media (max-width:560px){
  .wrap{padding:0 16px;}
  .topbar-inner{height:auto;padding:12px 16px;align-items:flex-start;flex-direction:column;}
  .filter-panel,.metric-grid,.status-grid{grid-template-columns:1fr;}
  .report-export-grid{grid-template-columns:1fr;}
  .analysis-bar-row{grid-template-columns:1fr;gap:5px;}
  .analysis-bar-value{text-align:left;}
  .analysis-bar-meta{grid-column:1;}
  .bar-row{grid-template-columns:1fr;gap:5px;}
  .bar-value{text-align:left;}
  .grouped-chart{grid-auto-columns:minmax(62px,1fr);}
  .vbar{width:18px;}
  .hero{padding:38px 0 32px;}
  th,td{padding:9px 10px;}
  .kv{grid-template-columns:1fr;}
}

/* ===== V1.9.1 教学诊断与建议 ===== */
.teaching-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:16px;}
@media(max-width:820px){.teaching-grid{grid-template-columns:1fr;}}
.teaching-actions{display:flex;gap:8px;flex-wrap:wrap;}
.btn-xs{padding:6px 12px;font-size:12px;border-radius:8px;}
.teaching-advice{display:flex;flex-direction:column;gap:12px;}
.advice-block{border:1px solid var(--line,#e2e8f0);border-radius:10px;padding:12px 14px;background:#fff;}
.advice-block h4{margin:0 0 8px;font-size:14px;color:var(--ink,#1e293b);font-weight:700;}
.advice-block ul{margin:0;padding-left:18px;}
.advice-block li{font-size:13px;color:var(--text,#334155);line-height:1.7;margin-bottom:4px;}
.advice-block .advice-empty{font-size:13px;color:var(--muted,#64748b);}
.advice-attention{font-size:13px;color:#a3320f;font-weight:600;}
.teaching-summary{width:100%;box-sizing:border-box;min-height:280px;border:1px solid var(--line,#e2e8f0);border-radius:10px;padding:12px 14px;font-size:13px;line-height:1.7;font-family:inherit;color:var(--text,#334155);resize:vertical;white-space:pre-wrap;background:#fff;}

/* ===== V2.0-G2 班级×作业完成矩阵 ===== */
.matrix-tip{font-size:12.5px;color:#888;margin:6px 0 10px;}
.matrix-scroll{overflow-x:auto;max-height:420px;overflow-y:auto;border:1px solid rgba(0,0,0,.08);border-radius:10px;}
.matrix-table{border-collapse:collapse;font-size:12px;min-width:100%;}
.matrix-table th,.matrix-table td{border:1px solid rgba(0,0,0,.06);padding:4px 6px;text-align:center;white-space:nowrap;}
.matrix-table thead th{position:sticky;top:0;background:#faf7f2;z-index:1;font-weight:600;color:#6a5a42;}
.matrix-table .m-stu{position:sticky;left:0;background:#faf7f2;z-index:2;font-weight:600;min-width:64px;}
.matrix-table .m-ai{font-style:normal;font-size:10px;margin-left:2px;}
.m-cell{cursor:pointer;width:34px;}
.m-cell.m-none{color:#ccc;}
.m-cell.m-doing{color:#b07a2a;background:rgba(201,160,99,.10);}
.m-cell.m-sub{color:#2e7a40;background:rgba(76,160,90,.12);font-weight:700;}
.m-cell:hover{outline:2px solid rgba(201,160,99,.6);}
.m-count{font-weight:700;color:#6a5a42;}

/* ===== V2.1-S3 课中实时 + 五维画像 ===== */
.live-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.live-row b{min-width:56px;}
.live-where{flex:1;min-width:140px;color:var(--text,#334155);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.live-status{font-size:12.5px;color:#64748b;white-space:nowrap;}
.live-prog{font-weight:700;color:#4f46e5;font-size:12.5px;}
.live-help{background:#fff1f2;border:1px solid #fda4af;color:#be123c;border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700;}
.live-row.lv-off{opacity:.55;}
.portrait-select{border:1px solid var(--line,#e2e8f0);border-radius:8px;padding:6px 10px;font-size:13px;}
.portrait-grid{display:grid;grid-template-columns:minmax(260px,340px) 1fr;gap:18px;align-items:start;}
@media (max-width:760px){.portrait-grid{grid-template-columns:1fr;}}
.portrait-legend{display:flex;gap:14px;font-size:12px;margin-top:4px;}
.portrait-legend .pl-stu{color:#4f46e5;}
.portrait-legend .pl-avg{color:#94a3b8;}
.portrait-val{float:right;font-weight:800;color:#4f46e5;}
.portrait-advice-line{background:#fff7e0;border:1px solid #fde68a;border-radius:8px;}

/* ===== V2.2-S5 终评 / 一致性 / 案例审核台 ===== */
.final-grade-row{display:inline-flex;align-items:center;gap:8px;margin-top:6px;font-size:13px;}
.final-saved{font-style:normal;color:#2e7a40;font-weight:700;font-size:12px;}
.consistency-tip{font-size:12px;color:#94a3b8;}
.consistency-warn{font-size:12px;color:#a3320f;font-weight:600;}
.case-token-row{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:#64748b;}
.case-review-item{display:flex;gap:14px;border:1px solid var(--line,#e2e8f0);border-radius:12px;padding:12px;margin-bottom:10px;background:#fff;}
.case-review-item img{width:130px;height:130px;object-fit:contain;border-radius:8px;border:1px solid var(--line,#e2e8f0);background:#fafafa;flex:0 0 auto;}
.case-review-body{flex:1;min-width:0;}
.case-review-body b{font-size:13.5px;}
.case-review-body p{font-size:13px;color:#475569;line-height:1.6;margin:4px 0;}
.case-level{margin-left:10px;font-size:12px;font-weight:800;color:#4f46e5;}
.case-reflect{color:#5a4a8a!important;background:rgba(120,90,200,.06);border-radius:6px;padding:4px 8px;}
.case-teacher-comment{width:100%;box-sizing:border-box;margin:6px 0;font-size:12.5px;padding:6px 10px;border:1px solid var(--line,#e2e8f0);border-radius:8px;}
.case-review-actions{display:flex;gap:8px;flex-wrap:wrap;}

/* ===== V2.2 视觉案例审核 ===== */
.vision-review-panel{background:var(--card);border:1px solid rgba(0,0,0,.04);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;}
.vision-cloud-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border:1px solid rgba(79,70,229,.14);background:#f8f7ff;border-radius:12px;padding:10px 12px;margin-bottom:12px;}
.vision-cloud-status b{display:block;color:#4338ca;font-size:13px;}
.vision-cloud-status span{display:block;color:var(--muted);font-size:12px;margin-top:2px;}
.vision-cloud-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.vision-cloud-actions .text-input{height:34px;min-width:240px;max-width:320px;font-size:12.5px;}
.vision-review-filters{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:14px;}
.vision-review-filters select{height:34px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--text);font-size:13px;padding:0 10px;max-width:190px;}
.vision-review-summary{margin-bottom:14px;}
.vision-class-diagnosis{border:1px solid rgba(15,118,110,.18);background:rgba(15,118,110,.035);border-radius:12px;padding:14px;margin-bottom:14px;}
.vision-diag-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.vision-diag-head b{display:block;color:#0f766e;font-size:15px;}
.vision-diag-head span{display:block;color:var(--muted);font-size:12.5px;margin-top:2px;}
.vision-diag-head i{font-style:normal;flex:0 0 auto;background:#ecfdf5;color:#047857;border:1px solid #bbf7d0;border-radius:999px;padding:4px 10px;font-size:12px;font-weight:800;}
.vision-diag-grid{display:grid;grid-template-columns:1.05fr 1fr 1.25fr 1.35fr;gap:10px;}
.vision-diag-card{background:#fff;border:1px solid rgba(15,118,110,.12);border-radius:10px;padding:10px;min-width:0;}
.vision-diag-card h4{font-size:12.5px;color:var(--ink);margin:0 0 8px;}
.vision-diag-bar{display:grid;grid-template-columns:28px 1fr 64px;align-items:center;gap:7px;margin-bottom:7px;font-size:12px;color:var(--muted);}
.vision-diag-bar i{display:block;height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden;}
.vision-diag-bar b{display:block;height:100%;min-width:2px;background:linear-gradient(90deg,#0f766e,#14b8a6);}
.vision-diag-bar em{font-style:normal;text-align:right;color:var(--text);}
.vision-diag-tags{display:flex;gap:6px;flex-wrap:wrap;}
.vision-diag-tags span{font-size:11.5px;line-height:1.25;border-radius:999px;background:#f1f5f9;color:#475569;border:1px solid #e2e8f0;padding:4px 8px;}
.vision-diag-tags b{color:#0f766e;}
.vision-diag-assignments{display:grid;gap:7px;}
.vision-diag-assignments div{border-bottom:1px dashed #e2e8f0;padding-bottom:6px;}
.vision-diag-assignments div:last-child{border-bottom:none;padding-bottom:0;}
.vision-diag-assignments b{display:block;font-size:12.2px;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.vision-diag-assignments span{display:block;font-size:11.5px;color:var(--muted);margin-top:2px;}
.vision-diag-card.advice ul{margin:0;padding-left:17px;color:var(--text);font-size:12.3px;line-height:1.6;}
.vision-diag-card.advice li{margin-bottom:4px;}
.vision-diag-empty{font-size:12px;color:var(--muted);line-height:1.6;margin:0;}
.vision-intervention-panel{margin-top:12px;border-top:1px dashed rgba(15,118,110,.2);padding-top:12px;}
.vision-intervention-panel h4{font-size:12.8px;color:#0f766e;margin:0 0 8px;}
.vision-intervention-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;}
.vision-intervention-card{background:#fff;border:1px solid rgba(15,118,110,.12);border-radius:10px;padding:10px;min-width:0;}
.vision-intervention-card span{display:inline-flex;border-radius:999px;background:#ecfdf5;color:#047857;border:1px solid #bbf7d0;font-size:11px;font-weight:800;line-height:1.2;padding:3px 8px;margin-bottom:6px;}
.vision-intervention-card b{display:block;font-size:12.5px;line-height:1.35;color:var(--ink);margin-bottom:5px;}
.vision-intervention-card p{font-size:12px;line-height:1.55;color:var(--text);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.vision-intervention-card small{display:block;font-size:11.3px;color:var(--muted);margin-top:6px;}
.vision-lecture-picks{border:1px solid rgba(201,160,99,.24);background:rgba(201,160,99,.055);border-radius:12px;padding:14px;margin-bottom:14px;}
.vision-lecture-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
.vision-lecture-head b{display:block;color:#8a6a3a;font-size:15px;}
.vision-lecture-head span{display:block;color:var(--muted);font-size:12.5px;margin-top:2px;}
.vision-lecture-head>div:last-child{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
.vision-lecture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
.vision-lecture-col{background:#fff;border:1px solid rgba(201,160,99,.18);border-radius:10px;padding:10px;min-width:0;}
.vision-lecture-col h4{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 8px;font-size:12.8px;color:var(--ink);}
.vision-lecture-col h4 span{font-size:11px;color:#8a6a3a;background:rgba(201,160,99,.12);border-radius:999px;padding:2px 7px;}
.vision-lecture-card{display:grid;grid-template-columns:54px 1fr;gap:8px;border-top:1px dashed #e2e8f0;padding-top:8px;margin-top:8px;min-width:0;}
.vision-lecture-card:first-of-type{border-top:none;padding-top:0;margin-top:0;}
.vision-lecture-card img,.vision-lecture-thumb{width:54px;height:54px;border-radius:8px;object-fit:cover;border:1px solid rgba(0,0,0,.08);background:#f8fafc;display:flex;align-items:center;justify-content:center;color:#94a3b8;font-size:12px;}
.vision-lecture-card div{min-width:0;}
.vision-lecture-card b{display:block;color:var(--ink);font-size:12.5px;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.vision-lecture-card small{display:block;color:#8a6a3a;font-size:11.3px;margin:2px 0;}
.vision-lecture-card p{font-size:11.8px;color:var(--text);line-height:1.45;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.vision-lecture-card button{margin-top:6px;}
.vision-research-export{border:1px solid rgba(79,70,229,.18);background:rgba(79,70,229,.045);border-radius:12px;padding:14px;margin-bottom:14px;}
.vision-research-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;}
.vision-research-head b{display:block;color:#4338ca;font-size:15px;}
.vision-research-head span{display:block;color:var(--muted);font-size:12.5px;margin-top:2px;}
.vision-research-head>div:last-child{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
.vision-research-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;}
.vision-research-metrics span{display:block;background:#fff;border:1px solid rgba(79,70,229,.12);border-radius:10px;padding:8px 10px;color:var(--muted);font-size:11.8px;}
.vision-research-metrics b{display:block;color:#4338ca;font-size:16px;margin-bottom:2px;}
.vision-review-grid{display:grid;grid-template-columns:minmax(260px,330px) 1fr;gap:14px;align-items:start;}
.vision-review-list{display:grid;gap:8px;max-height:620px;overflow:auto;padding-right:2px;}
.teacher-vision-row{display:grid;grid-template-columns:58px 1fr;gap:9px;text-align:left;border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px;cursor:pointer;min-width:0;}
.teacher-vision-row:hover,.teacher-vision-row.on{border-color:#a78bfa;background:#fbfaff;}
.teacher-vision-row img,.teacher-vision-thumb{width:58px;height:58px;border-radius:8px;object-fit:cover;background:#f8fafc;border:1px solid rgba(0,0,0,.08);display:flex;align-items:center;justify-content:center;color:#94a3b8;font-size:12px;}
.teacher-vision-row span{min-width:0;}
.teacher-vision-row b{display:block;color:var(--ink);font-size:13px;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.teacher-vision-row small{display:block;color:var(--muted);font-size:11.5px;line-height:1.45;margin:2px 0;}
.teacher-vision-row em{display:block;font-style:normal;color:var(--text);font-size:12px;line-height:1.45;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.teacher-vision-tags{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0;}
.teacher-vision-tags span{font-size:11.5px;line-height:1.3;padding:3px 8px;border-radius:999px;background:#eef2ff;color:#4338ca;border:1px solid #dbe3ff;white-space:nowrap;}
.teacher-vision-tags.compact{margin:4px 0 0;}
.teacher-vision-tags.compact span{font-size:11px;padding:2px 7px;background:#f1f5f9;color:#64748b;border-color:#e2e8f0;}
.vision-review-detail{border:1px solid var(--line);border-radius:12px;background:#fff;padding:14px;min-height:220px;}
.teacher-vision-detail-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px;}
.teacher-vision-detail-head b{display:block;color:var(--ink);font-size:15px;}
.teacher-vision-detail-head span{display:block;color:var(--muted);font-size:12px;margin-top:2px;}
.teacher-vision-detail-head i{font-style:normal;flex:0 0 auto;font-size:12px;color:#5b21b6;background:#f3e8ff;border-radius:999px;padding:4px 10px;}
.teacher-vision-preview{display:block;max-width:100%;max-height:320px;object-fit:contain;background:#f8fafc;border:1px solid rgba(0,0,0,.08);border-radius:10px;margin-bottom:10px;}
.teacher-vision-facts{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:10px;}
.teacher-vision-facts p{margin:0;border:1px solid #eef2f7;background:#f8fafc;border-radius:9px;padding:8px 10px;font-size:12.5px;color:var(--text);line-height:1.55;}
.teacher-vision-facts b{display:block;color:#3343a0;font-size:11.5px;margin-bottom:2px;}
.teacher-student-reflection{border:1px solid #dbeafe;background:#eff6ff;border-radius:10px;padding:10px 12px;margin-bottom:10px;}
.teacher-student-reflection div{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:5px;}
.teacher-student-reflection b{font-size:12.5px;color:#1d4ed8;}
.teacher-student-reflection span{font-size:11.5px;color:#5b21b6;background:#fff;border:1px solid #ddd6fe;border-radius:999px;padding:3px 8px;flex:0 0 auto;}
.teacher-student-reflection p{font-size:12.8px;line-height:1.6;color:var(--text);margin:0;}
.teacher-student-reflection small{display:block;font-size:11.5px;color:var(--muted);line-height:1.45;margin-top:4px;}
.teacher-vision-editor{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;}
.teacher-vision-editor label{display:grid;gap:5px;font-size:12px;font-weight:800;color:var(--muted);}
.teacher-vision-editor label.wide{grid-column:1/-1;}
.teacher-vision-editor textarea{width:100%;min-height:62px;border:1px solid var(--line);border-radius:9px;padding:8px 10px;resize:vertical;color:var(--text);font-size:12.5px;line-height:1.5;}
.teacher-vision-editor select{width:100%;height:36px;border:1px solid var(--line);border-radius:9px;padding:0 9px;background:#fff;color:var(--text);font-size:12.5px;}
.teacher-vision-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.vision-review-note{font-size:12px;color:var(--muted);line-height:1.6;margin-top:8px;}
.vision-review-empty{border:1px dashed #c7bfff;background:#faf9ff;border-radius:10px;padding:14px;color:var(--muted);font-size:13px;line-height:1.7;}
@media (max-width:900px){
  .vision-review-grid{grid-template-columns:1fr;}
  .vision-diag-grid{grid-template-columns:1fr;}
  .vision-intervention-list{grid-template-columns:1fr;}
  .vision-lecture-grid{grid-template-columns:1fr;}
  .vision-research-metrics{grid-template-columns:1fr 1fr;}
  .vision-diag-head{align-items:flex-start;flex-direction:column;}
  .vision-lecture-head{align-items:flex-start;flex-direction:column;}
  .vision-research-head{align-items:flex-start;flex-direction:column;}
  .teacher-vision-facts,.teacher-vision-editor{grid-template-columns:1fr;}
}

/* ===== V2.2 P9 标签维护 ===== */
.tag-admin-panel{background:var(--card);border:1px solid rgba(0,0,0,.04);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;}
.tag-admin-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px;}
.tag-admin-head b{display:block;color:var(--ink);font-size:16px;}
.tag-admin-head span{display:block;color:var(--muted);font-size:12.5px;margin-top:3px;}
.tag-admin-head>div:last-child{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
.tag-admin-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.tag-admin-tabs button{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:999px;padding:7px 12px;font-size:12.5px;font-weight:800;cursor:pointer;}
.tag-admin-tabs button.on{background:#eef2ff;color:#4338ca;border-color:#c7d2fe;}
.tag-admin-tabs b{font-size:11px;margin-left:4px;color:#64748b;}
.tag-admin-workbench{display:grid;gap:12px;}
.tag-admin-add{border:1px solid rgba(79,70,229,.15);background:#f8faff;border-radius:12px;padding:12px;}
.tag-admin-add h4{margin:0 0 8px;font-size:13px;color:#4338ca;}
.tag-admin-add>div{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;}
.tag-admin-add input{height:34px;border:1px solid var(--line);border-radius:9px;padding:0 10px;font-size:13px;color:var(--text);}
.tag-admin-add p{font-size:12px;color:var(--muted);line-height:1.6;margin:8px 0 0;}
.tag-admin-list{display:grid;gap:8px;}
.tag-admin-row{display:grid;grid-template-columns:minmax(220px,1fr) minmax(180px,240px) auto auto;gap:8px;align-items:center;border:1px solid var(--line);border-radius:10px;background:#fff;padding:9px 10px;}
.tag-admin-row.off{background:#f8fafc;opacity:.72;}
.tag-admin-row b{display:block;font-size:13px;color:var(--ink);}
.tag-admin-row span{display:block;font-size:11.5px;color:var(--muted);margin-top:2px;word-break:break-all;}
.tag-admin-row select{height:32px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);font-size:12.5px;padding:0 8px;min-width:0;}
.tag-admin-status{margin-top:12px;border:1px solid #bbf7d0;background:#ecfdf5;color:#047857;border-radius:10px;padding:9px 11px;font-size:12.5px;}
.tag-admin-empty{border:1px dashed #c7d2fe;background:#f8faff;border-radius:10px;padding:14px;color:var(--muted);font-size:13px;line-height:1.7;}
@media (max-width:900px){
  .tag-admin-head{flex-direction:column;}
  .tag-admin-add>div,.tag-admin-row{grid-template-columns:1fr;}
}

/* ===== V2.2 P9 知识切片维护 ===== */
.knowledge-admin-panel{background:var(--card);border:1px solid rgba(0,0,0,.04);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;}
.knowledge-admin-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px;}
.knowledge-admin-head b{display:block;color:var(--ink);font-size:16px;}
.knowledge-admin-head span{display:block;color:var(--muted);font-size:12.5px;margin-top:3px;}
.knowledge-admin-head>div:last-child{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end;}
.knowledge-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.knowledge-tabs button{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:999px;padding:7px 12px;font-size:12.5px;font-weight:800;cursor:pointer;}
.knowledge-tabs button.on{background:#ecfdf5;color:#047857;border-color:#bbf7d0;}
.knowledge-editor{display:grid;gap:10px;border:1px solid rgba(15,118,110,.14);background:rgba(15,118,110,.035);border-radius:12px;padding:12px;}
.knowledge-select-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
.knowledge-select-row select,.knowledge-editor input,.knowledge-editor textarea{width:100%;box-sizing:border-box;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--text);font-size:13px;}
.knowledge-select-row select,.knowledge-editor input{height:34px;padding:0 10px;}
.knowledge-editor textarea{min-height:82px;padding:8px 10px;line-height:1.55;resize:vertical;}
.knowledge-editor label{display:grid;gap:5px;font-size:12px;font-weight:800;color:var(--muted);}
.knowledge-actions{display:flex;gap:8px;flex-wrap:wrap;}
.knowledge-status{margin-top:12px;border:1px solid #bbf7d0;background:#ecfdf5;color:#047857;border-radius:10px;padding:9px 11px;font-size:12.5px;}
.knowledge-empty{border:1px dashed #bbf7d0;background:#f0fdf4;border-radius:10px;padding:14px;color:var(--muted);font-size:13px;line-height:1.7;}
@media (max-width:900px){
  .knowledge-admin-head{flex-direction:column;}
  .knowledge-select-row{grid-template-columns:1fr;}
}

/* ===== V2.7 4A 知识卡有效性分析 ===== */
.knowledge-analytics-shell{display:grid;gap:14px;}
.knowledge-analytics-panel{display:grid;gap:14px;}
.knowledge-analytics-status{border:1px solid #dbeafe;background:#eff6ff;color:#1e40af;border-radius:12px;padding:10px 12px;font-size:12.5px;line-height:1.6;}
.knowledge-analytics-status b{color:#1d4ed8;}
.knowledge-analytics-status span{display:block;color:#64748b;margin-top:2px;}
.knowledge-analytics-empty{border:1px dashed #c7d2fe;background:#f8faff;border-radius:10px;padding:14px;color:var(--muted);font-size:13px;line-height:1.7;}
.knowledge-analytics-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.knowledge-analytics-grid .wide{grid-column:1/-1;}
.knowledge-weak-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
.knowledge-weak-grid .online-card{box-shadow:none;}
.knowledge-tag-rank{display:grid;gap:9px;}
.knowledge-tag-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center;font-size:12.5px;color:var(--text);}
.knowledge-tag-row b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ink);}
.knowledge-tag-row span{color:var(--muted);}
.knowledge-tag-row i{grid-column:1/-1;display:block;height:7px;border-radius:999px;background:#e2e8f0;overflow:hidden;}
.knowledge-tag-row em{display:block;height:100%;background:linear-gradient(90deg,#4f46e5,#14b8a6);border-radius:999px;}
.knowledge-reason-list{display:grid;gap:8px;}
.knowledge-analytics-panel table small{display:block;color:var(--muted);font-size:11px;margin-top:2px;}

/* ===== V2.7 4C 教师端知识图谱链条视图 ===== */
.knowledge-chain-shell{display:grid;gap:14px;}
.knowledge-chain-controls{
  grid-template-columns:minmax(180px,1fr) repeat(4,minmax(135px,auto));
  align-items:center;
}
.check-field{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:8px 10px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--text);
  font-size:12.5px;
  font-weight:800;
}
.check-field input{width:auto;min-height:auto;}
.knowledge-chain-panel{display:grid;gap:14px;}
.knowledge-chain-note{
  border:1px solid #fde68a;
  background:#fffbeb;
  color:#92400e;
  border-radius:12px;
  padding:10px 12px;
  font-size:12.5px;
  line-height:1.6;
}
.knowledge-chain-list{display:grid;gap:14px;}
.knowledge-chain-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;
  padding:14px;
  box-shadow:0 8px 24px rgba(30,41,59,.06);
}
.knowledge-chain-title{
  display:flex;
  gap:10px;
  align-items:flex-start;
  margin-bottom:12px;
}
.knowledge-chain-title>span{
  width:30px;
  height:30px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:#eef2ff;
  color:var(--indigo);
  font-weight:900;
}
.knowledge-chain-title h3{color:var(--ink);font-size:1rem;line-height:1.3;}
.knowledge-chain-title p{color:var(--muted);font-size:12.5px;margin-top:2px;}
.knowledge-chain-flow{
  display:grid;
  grid-template-columns:minmax(92px,.55fr) 18px minmax(140px,.9fr) 18px minmax(210px,1.45fr) 18px minmax(170px,1fr) 18px minmax(190px,1.15fr);
  gap:8px;
  align-items:stretch;
}
.knowledge-chain-arrow{
  display:grid;
  place-items:center;
  color:#94a3b8;
  font-weight:900;
}
.knowledge-chain-node{
  border:1px solid #e5e7eb;
  background:#f8faff;
  border-radius:12px;
  padding:10px;
  min-height:76px;
}
.knowledge-chain-node strong{
  display:block;
  color:var(--ink);
  font-size:12px;
  margin-bottom:6px;
}
.knowledge-chain-node p,.knowledge-chain-node small{
  color:var(--muted);
  font-size:12px;
  line-height:1.55;
}
.knowledge-chain-node.weak{background:#fff7ed;border-color:#fed7aa;}
.knowledge-chain-node.cards{background:#f8fafc;}
.knowledge-chain-node.repair{background:#f0fdf4;border-color:#bbf7d0;}
.knowledge-chain-node.action{background:#faf5ff;border-color:#e9d5ff;}
.knowledge-chain-card-pill,.knowledge-chain-repair{
  display:grid;
  gap:3px;
  border:1px solid rgba(226,232,240,.9);
  border-radius:10px;
  padding:8px;
  background:#fff;
  margin-top:6px;
}
.knowledge-chain-card-pill b,.knowledge-chain-repair b{font-size:12px;color:var(--ink);}
.knowledge-chain-card-pill small,.knowledge-chain-repair small{font-size:11px;color:var(--muted);}
.knowledge-chain-badges,.knowledge-chain-footer{display:flex;gap:6px;flex-wrap:wrap;}
.knowledge-chain-footer{margin-top:10px;}
.knowledge-chain-badge{
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  border:1px solid #c7d2fe;
  background:#eef2ff;
  color:#3730a3;
  padding:3px 8px;
  font-size:11px;
  font-weight:900;
}
.knowledge-chain-badge.good{border-color:#bbf7d0;background:#f0fdf4;color:#15803d;}
.knowledge-chain-badge.warn{border-color:#fed7aa;background:#fff7ed;color:#c2410c;}
.knowledge-chain-badge.muted{border-color:#e2e8f0;background:#f8fafc;color:#64748b;}
.knowledge-chain-summary{
  color:var(--muted);
  font-size:12px;
  text-align:right;
}
@media (max-width:860px){
  .knowledge-analytics-grid,.knowledge-weak-grid{grid-template-columns:1fr;}
  .knowledge-chain-controls{grid-template-columns:1fr;}
  .knowledge-chain-flow{grid-template-columns:1fr;}
  .knowledge-chain-arrow{transform:rotate(90deg);min-height:14px;}
}

/* ===== V2.4 十二课诊断与七维成长画像 ===== */
.v24-toolbar{display:flex;align-items:end;gap:10px;flex-wrap:wrap;margin-top:14px;padding:12px;border:1px solid rgba(15,118,110,.14);background:rgba(15,118,110,.035);border-radius:12px;}
.v24-toolbar label{display:grid;gap:5px;min-width:170px;color:var(--muted);font-size:11.5px;font-weight:800;}
.v24-toolbar select{height:34px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--text);padding:0 9px;font-size:12.5px;}
.v24-decision-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;margin-top:14px;}
.v24-panel{min-width:0;border:1px solid rgba(15,118,110,.13);background:var(--card);border-radius:14px;box-shadow:var(--shadow);padding:15px;}
.v24-panel.v24-wide{grid-column:1/-1;}
.v24-panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:12px;}
.v24-panel-head h3{margin:0;color:var(--ink);font-size:16px;}
.v24-panel-head span{color:var(--muted);font-size:11.5px;text-align:right;}
.v24-table-scroll{overflow:auto;border:1px solid var(--line);border-radius:10px;}
.v24-table{width:100%;min-width:760px;border-collapse:collapse;background:#fff;}
.v24-table th,.v24-table td{padding:10px 11px;border-bottom:1px solid #edf2f7;text-align:left;font-size:12.5px;line-height:1.5;vertical-align:middle;}
.v24-table th{position:sticky;top:0;background:#f8fafc;color:#64748b;font-size:11.5px;z-index:1;}
.v24-table tr:last-child td{border-bottom:0;}
.v24-table td:first-child b{display:block;color:#0f766e;}
.v24-table td:first-child small{display:block;max-width:180px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.v24-heat{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:28px;border-radius:8px;font-weight:900;}
.v24-heat.heat-0{background:#f1f5f9;color:#94a3b8;}
.v24-heat.heat-1{background:#d1fae5;color:#047857;}
.v24-heat.heat-2{background:#fef3c7;color:#b45309;}
.v24-heat.heat-3{background:#fee2e2;color:#b91c1c;}
.v24-scenario-list{display:grid;gap:9px;max-height:475px;overflow:auto;padding-right:2px;}
.v24-scenario-card{border:1px solid var(--line);background:#f8fafc;border-radius:11px;padding:11px 12px;}
.v24-scenario-card.has-data{border-color:#99f6e4;background:#f0fdfa;}
.v24-scenario-card>div{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.v24-scenario-card b{color:var(--ink);font-size:13px;}
.v24-scenario-card>div span{color:var(--muted);font-size:10.5px;}
.v24-scenario-card p{display:grid;grid-template-columns:72px 1fr;gap:7px;margin:7px 0 0;color:var(--text);font-size:12px;line-height:1.45;}
.v24-scenario-card i{font-style:normal;color:#0f766e;font-weight:800;}
.v24-scenario-card small{display:block;margin-top:7px;color:#64748b;font-size:11.5px;line-height:1.55;}
.v24-profile-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:4px;}
.v24-profile-head b{color:#0f766e;font-size:14px;}
.v24-profile-head span{color:var(--muted);font-size:10.8px;text-align:right;}
#v24GrowthProfile svg{display:block;width:100%;max-width:390px;margin:0 auto;overflow:visible;}
.v24-score-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px;}
.v24-score-grid>div{border:1px solid #dbeafe;background:#f8fbff;border-radius:9px;padding:7px;text-align:center;}
.v24-score-grid span{display:block;color:#64748b;font-size:10.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.v24-score-grid b{display:inline-block;margin-top:2px;color:#0f766e;font-size:17px;}
.v24-score-grid small{color:#94a3b8;font-size:10px;}
.v24-profile-tip{margin:9px 0 0;border-left:3px solid #14b8a6;background:#f0fdfa;padding:8px 10px;color:#475569;font-size:11.5px;line-height:1.6;}
.v24-advice-block{border:1px solid var(--line);border-left:4px solid #0f766e;border-radius:10px;background:#fff;padding:10px 12px;margin-top:8px;}
.v24-advice-block:first-child{margin-top:0;}
.v24-advice-block h4{margin:0 0 5px;color:#0f766e;font-size:12.5px;}
.v24-advice-block p{margin:0;color:var(--text);font-size:12.5px;line-height:1.65;}
.v24-empty{border:1px dashed #99f6e4;background:#f0fdfa;border-radius:10px;padding:14px;color:var(--muted);font-size:12.5px;line-height:1.6;}
@media (max-width:900px){
  .v24-decision-grid{grid-template-columns:1fr;}
  .v24-panel.v24-wide{grid-column:auto;}
  .v24-toolbar label{min-width:min(100%,220px);flex:1 1 180px;}
  .v24-panel-head,.v24-profile-head{flex-direction:column;}
  .v24-panel-head span,.v24-profile-head span{text-align:left;}
  .v24-score-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}