:root{
  --bg:#f6f8fc;--card:#fff;--text:#14213d;--muted:#728096;--line:#e7ebf3;--primary:#3370ff;--primary2:#1456f0;
  --green:#12b886;--orange:#ff9f43;--shadow:0 12px 32px rgba(15,23,42,.08);--radius:16px;--gap:18px;--font:15px;
}
html.dark{--bg:#0f172a;--card:#1e293b;--text:#e2e8f0;--muted:#94a3b8;--line:#334155;--primary:#4f8cff;--shadow:0 12px 32px rgba(0,0,0,.25)}
html.compact{--gap:12px;--radius:12px;--font:14px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;font-size:var(--font)}
a{color:inherit;text-decoration:none}.app{display:flex;min-height:100vh}.sidebar{width:250px;background:rgba(255,255,255,.74);backdrop-filter:blur(14px);border-right:1px solid var(--line);padding:18px 14px;position:fixed;inset:0 auto 0 0;overflow:auto}
.dark .sidebar{background:rgba(30,41,59,.72)}.brand{display:flex;gap:12px;align-items:center;margin-bottom:24px}.logo{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#3370ff,#6ea8ff);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800}.brand h1{font-size:18px;margin:0}.brand p{font-size:12px;color:var(--muted);margin:2px 0 0}.nav-title{font-weight:700;font-size:13px;margin:18px 8px 8px;color:var(--muted)}.nav a{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:10px;color:var(--text);margin:3px 0}.nav a.active,.nav a:hover{background:rgba(51,112,255,.1);color:var(--primary)}
.main{margin-left:250px;flex:1}.topbar{height:66px;background:rgba(255,255,255,.75);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:5}.dark .topbar{background:rgba(15,23,42,.75)}
.search{width:360px;max-width:45vw;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:11px 14px;color:var(--text)}.content{padding:24px}.grid{display:grid;gap:var(--gap)}.grid.cols4{grid-template-columns:repeat(4,1fr)}.grid.cols2{grid-template-columns:1.2fr .9fr}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;transition:.2s}.card:hover{transform:translateY(-2px)}
.kpi{display:flex;align-items:center;gap:16px}.icon{width:54px;height:54px;border-radius:18px;background:rgba(51,112,255,.12);display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:24px}.btn{border:0;background:var(--primary);color:#fff;border-radius:10px;padding:10px 16px;cursor:pointer;font-weight:700;display:inline-flex;gap:8px;align-items:center}.btn:hover{background:var(--primary2)}.btn.secondary{background:var(--bg);color:var(--text);border:1px solid var(--line)}.btn.orange{background:#ff8b2c}.btn.green{background:var(--green)}.btn.danger{background:#ef4444}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--text);outline:none}textarea{min-height:120px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}.field{margin-bottom:14px}.field label{display:block;font-weight:700;margin-bottom:7px}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:12px;border-bottom:1px solid var(--line);text-align:left}.tag{display:inline-block;padding:4px 8px;border-radius:999px;background:rgba(51,112,255,.1);color:var(--primary);font-size:12px}.muted{color:var(--muted)}.tabs{display:flex;gap:8px;border-bottom:1px solid var(--line);margin-bottom:16px}.tabs a{padding:10px 12px;border-bottom:2px solid transparent}.tabs a.active{border-color:var(--primary);color:var(--primary);font-weight:700}.upload{border:1px dashed #b7c4dc;border-radius:14px;padding:26px;text-align:center;background:rgba(51,112,255,.03)}
.result-row{display:flex;justify-content:space-between;align-items:center;border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:10px}.stars{color:#f59f00;letter-spacing:2px}.doc-preview iframe{width:100%;height:72vh;border:0;border-radius:12px;background:#fff}.login{min-height:100vh;display:flex;align-items:center;justify-content:center}.login .card{width:420px}.mobile-menu{display:none}
@media (max-width: 960px){.sidebar{transform:translateX(-100%);transition:.2s;z-index:20}.sidebar.open{transform:none}.main{margin-left:0}.mobile-menu{display:inline-flex}.grid.cols4,.grid.cols2{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.search{display:none}.content{padding:16px}}

.status-dot{display:inline-block;width:11px;height:11px;border-radius:50%;margin-left:8px;vertical-align:middle;box-shadow:0 0 0 4px rgba(0,0,0,.04)}.status-dot.green{background:#12b886;box-shadow:0 0 0 4px rgba(18,184,134,.15)}.status-dot.red{background:#ef4444;box-shadow:0 0 0 4px rgba(239,68,68,.15)}


/* v1.5 Feishu-like refinements */
.sidebar{width:248px;background:rgba(255,255,255,.86);box-shadow:1px 0 0 rgba(15,23,42,.04)}
.nav a{font-size:15px;font-weight:500;padding:11px 14px;border-radius:12px}
.nav a.active{background:#eef3ff;color:#3370ff;font-weight:700}
.nav-title{font-size:13px;color:#7b8699;margin-top:22px;margin-bottom:8px}
.topbar{box-shadow:0 1px 0 rgba(15,23,42,.04)}
.card{border:1px solid rgba(226,232,240,.9);box-shadow:0 8px 24px rgba(15,23,42,.06)}
.card h2{margin-top:0;font-size:18px}
input,select,textarea{border-color:#dfe6f2;transition:border .18s, box-shadow .18s, background .18s}
input:focus,select:focus,textarea:focus{border-color:#3370ff;box-shadow:0 0 0 4px rgba(51,112,255,.10)}
.btn{box-shadow:0 6px 14px rgba(51,112,255,.18);transition:transform .15s, box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 18px rgba(51,112,255,.22)}
.btn.secondary{box-shadow:none}
.status-card{border-radius:12px;padding:12px 14px;margin:10px 0 16px;font-weight:600}
.status-card.green{background:rgba(18,184,134,.10);color:#0f8f68;border:1px solid rgba(18,184,134,.22)}
.status-card.red{background:rgba(239,68,68,.10);color:#d83a3a;border:1px solid rgba(239,68,68,.22)}
.upload{background:linear-gradient(180deg,rgba(51,112,255,.04),rgba(51,112,255,.015));border-color:#b9c8e8}
.table th{background:rgba(248,250,252,.8);font-weight:700;color:#64748b}
.table tr:hover td{background:rgba(51,112,255,.035)}
.dark .nav a.active{background:rgba(79,140,255,.18);color:#8bb7ff}
.dark .table th{background:rgba(15,23,42,.35)}
.dark .table tr:hover td{background:rgba(79,140,255,.08)}


/* v1.6 sidebar hierarchy + header icon buttons */
.nav-title{
  font-size:16px !important;
  font-weight:800 !important;
  color:#6b778c !important;
  letter-spacing:.2px;
  margin:24px 12px 10px !important;
}
.nav a{
  font-size:14px !important;
  font-weight:500 !important;
  padding:9px 14px 9px 22px !important;
  margin:2px 0 !important;
  color:#1f2a44;
}
.nav a.active{
  font-weight:700 !important;
}
.icon-btn{
  width:38px;
  height:38px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--card);
  color:var(--text);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  transition:all .16s ease;
}
.icon-btn:hover{
  transform:translateY(-1px);
  border-color:rgba(51,112,255,.45);
  color:var(--primary);
  background:rgba(51,112,255,.08);
  box-shadow:0 8px 18px rgba(51,112,255,.12);
}
.status-title{
  margin-bottom:8px !important;
}
.status-card{
  margin:4px 0 14px !important;
  padding:12px 14px !important;
  border-radius:12px !important;
  line-height:1.5;
}
.status-card.red{
  background:#fff1f0 !important;
  color:#d4380d !important;
  border:1px solid #ffccc7 !important;
}
.status-card.green{
  background:#f0fff7 !important;
  color:#00875a !important;
  border:1px solid #b7ebc6 !important;
}
.dark .status-card.red{
  background:rgba(239,68,68,.14) !important;
  color:#ff9c91 !important;
  border-color:rgba(239,68,68,.35) !important;
}
.dark .status-card.green{
  background:rgba(18,184,134,.14) !important;
  color:#7ee2b8 !important;
  border-color:rgba(18,184,134,.35) !important;
}


/* v1.7 force sidebar hierarchy and status alert */
body .sidebar .nav .nav-title{
  font-size:16px !important;
  line-height:1.4 !important;
  font-weight:800 !important;
  color:#6b778c !important;
  margin:22px 12px 8px !important;
  padding:0 !important;
}
body .sidebar .nav a{
  font-size:14px !important;
  line-height:1.35 !important;
  font-weight:500 !important;
  padding:8px 12px 8px 18px !important;
  margin:2px 0 !important;
  border-radius:10px !important;
}
body .sidebar .nav a.active{
  font-size:14px !important;
  font-weight:700 !important;
}
.status-card.red,
.card .status-card.red{
  display:block !important;
  background:#fff1f0 !important;
  color:#d4380d !important;
  border:1px solid #ffccc7 !important;
  border-radius:12px !important;
  padding:12px 14px !important;
  margin:6px 0 16px !important;
  font-weight:600 !important;
}
.status-card.green,
.card .status-card.green{
  display:block !important;
  background:#f0fff7 !important;
  color:#00875a !important;
  border:1px solid #b7ebc6 !important;
  border-radius:12px !important;
  padding:12px 14px !important;
  margin:6px 0 16px !important;
  font-weight:600 !important;
}


/* v1.8 template switches */
.switch{
  width:46px;
  height:24px;
  border-radius:999px;
  background:#d8dee9;
  display:inline-flex;
  align-items:center;
  padding:2px;
  transition:.18s;
  vertical-align:middle;
}
.switch span{
  width:20px;
  height:20px;
  background:#fff;
  border-radius:50%;
  box-shadow:0 2px 8px rgba(15,23,42,.18);
  transition:.18s;
}
.switch.on{
  background:#3370ff;
}
.switch.on span{
  transform:translateX(22px);
}
.switch:hover{
  filter:brightness(.98);
}