:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#1f2937; --muted:#6b7280;
  --line:#e5e7eb; --brand:#2563eb; --brand2:#0ea5e9; --accent:#16a34a;
  --warn:#dc2626; --amber:#f59e0b;
}
*{box-sizing:border-box;}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
  background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6;}
header.top{background:linear-gradient(135deg,#1e3a8a,#2563eb);color:#fff;padding:18px 24px;}
header.top h1{margin:0;font-size:20px;font-weight:700;}
header.top p{margin:4px 0 0;opacity:.85;font-size:13px;}
.wrap{max-width:1240px;margin:0 auto;padding:18px;}
.banner{background:#eef2ff;border:1px solid #c7d2fe;color:#3730a3;padding:10px 14px;
  border-radius:10px;margin-bottom:14px;font-size:13px;}
.banner b{color:#1e3a8a;}

/* 上传区（已弃用，保留以防兼容） */
.upload{display:none;}

/* 数据编辑区 */
.gen-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;align-items:end;margin-bottom:12px;}
.gen-grid label{font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:4px;}
.gen-grid input{padding:7px 9px;border:1px solid #d1d5db;border-radius:7px;font-size:13px;background:#fff;color:var(--ink);}
.gen-grid .btn{grid-column:1/-1;justify-self:start;}
#csvEditor{width:100%;min-height:220px;max-height:340px;font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  font-size:12px;line-height:1.5;padding:10px;border:1px solid #d1d5db;border-radius:8px;resize:vertical;color:#374151;}
.editor-btns{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px;}
.btn{background:var(--brand);color:#fff;border:0;padding:9px 16px;border-radius:8px;
  cursor:pointer;font-size:13px;font-weight:600;transition:.15s;}
.btn:hover{background:#1d4ed8;}
.btn.ghost{background:#eef2ff;color:var(--brand);}
.btn.sm{padding:6px 12px;font-size:12px;}
.tag{font-size:12px;color:var(--muted);}
.tag b{color:var(--ink);}

/* 导航 */
nav.tabs{display:flex;gap:6px;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);
  border-radius:12px;padding:6px;margin-bottom:16px;position:sticky;top:0;z-index:50;}
nav.tabs button{background:transparent;border:0;padding:9px 14px;border-radius:8px;cursor:pointer;
  font-size:13px;color:var(--muted);font-weight:600;}
nav.tabs button.active{background:var(--brand);color:#fff;}

/* 控件 */
.controls{display:flex;gap:10px;flex-wrap:wrap;align-items:center;background:var(--card);
  border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin-bottom:16px;}
.controls label{font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:3px;}
.controls select,.controls input{padding:6px 8px;border:1px solid #d1d5db;border-radius:7px;
  font-size:13px;background:#fff;color:var(--ink);}
.controls .grow{flex:1;}

/* 卡片 */
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px;margin-bottom:16px;
  box-shadow:0 1px 2px rgba(0,0,0,.03);}
.card h2.section-title{font-size:15px;margin:0 0 12px;display:flex;align-items:center;gap:8px;}
.card h2.section-title .num{background:var(--brand);color:#fff;width:22px;height:22px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;}
.row{display:flex;gap:16px;flex-wrap:wrap;}
.row .col{flex:1;min-width:320px;}
.chart{width:100%;}

/* 表格 */
table.tbl{width:100%;border-collapse:collapse;font-size:12.5px;}
table.tbl th,table.tbl td{border:1px solid var(--line);padding:6px 8px;text-align:right;}
table.tbl th{background:#f8fafc;text-align:center;font-weight:600;color:var(--muted);}
table.tbl td.name{text-align:left;font-weight:600;}
.badge{display:inline-block;padding:1px 7px;border-radius:6px;font-size:11px;font-weight:700;}
.badge.A{background:#fde68a;color:#92400e;} .badge.B{background:#bfdbfe;color:#1e40af;}
.badge.B2{background:#e2e8f0;color:#334155;} .badge.C{background:#e5e7eb;color:#374151;}
.pill{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;font-weight:700;}
.pill.red{background:#fee2e2;color:#b91c1c;} .pill.amber{background:#fef3c7;color:#b45309;}
.pill.green{background:#dcfce7;color:#15803d;}

/* 解读三色块 */
.insight{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:0;margin-bottom:14px;overflow:hidden;}
.insight .head{display:flex;align-items:center;gap:8px;padding:11px 14px;background:#f8fafc;border-bottom:1px solid var(--line);}
.insight .head .k{font-size:15px;font-weight:700;}
.insight .head .sub{font-size:12px;color:var(--muted);margin-left:auto;}
.block{padding:11px 14px;border-left:4px solid transparent;}
.block .t{font-weight:700;font-size:12.5px;margin-bottom:4px;display:flex;align-items:center;gap:6px;}
.block.concept{border-left-color:#9ca3af;background:#fafafa;}
.block.concept .t{color:#4b5563;}
.block.meaning{border-left-color:var(--brand2);background:#f0f9ff;}
.block.meaning .t{color:#0369a1;}
.block.strategy{border-left-color:var(--accent);background:#f0fdf4;}
.block.strategy .t{color:#15803d;}
.block p{margin:0;font-size:13px;color:#374151;line-height:1.65;}
#modelErrTable{margin-bottom:14px;}
#modelErrTable .tbl{margin-bottom:6px;}

.conclusion{margin:0;padding-left:18px;}
.conclusion li{margin-bottom:6px;font-size:13px;}

.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px;}
.muted{color:var(--muted);}
.note{font-size:12px;color:var(--muted);margin-top:8px;}
.hidden{display:none!important;}
.kpi{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:14px;}
.kpi .box{flex:1;min-width:140px;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px;}
.kpi .box .v{font-size:22px;font-weight:800;color:var(--brand);}
.kpi .box .l{font-size:12px;color:var(--muted);}
.err{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;padding:12px;border-radius:10px;}