/* 多端后台统一简约风格（背景板略深，减少刺眼白） */
:root {
  --bg: #e8edf4;
  --card: #f1f4f8;
  --text: #0f172a;
  --muted: #64748b;
  --line: #d5dde8;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #059669;
  --danger: #dc2626;
  --warn: #d97706;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 8px 24px rgba(15, 23, 42, .04);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 12px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 1px 0 rgba(15,23,42,.03);
}
.brand { font-weight: 700; font-size: 15px; letter-spacing: -.01em; }
.brand span { color: var(--muted); font-weight: 500; margin-left: 6px; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 2px; }
.nav a {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 999px;
  text-decoration: none;
  transition: .15s;
}
.nav a:hover { background: #e2e8f0; color: var(--text); text-decoration: none; }
.nav a.on { background: #dbeafe; color: var(--primary); font-weight: 600; }
.userbox { font-size: 13px; color: var(--muted); white-space: nowrap; }
.userbox a { margin-left: 8px; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 22px 18px 40px; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
h1 { font-size: 18px; margin: 0 0 12px; letter-spacing: -.02em; }
h2 { font-size: 15px; margin: 0 0 12px; font-weight: 650; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td {
  padding: 10px 12px;
  border-bottom: 1px solid #e2e8f0;
  text-align: left;
  vertical-align: middle;
}
th {
  color: var(--muted);
  font-weight: 600;
  background: #e2e8f0;
  font-size: 12px;
  white-space: nowrap;
}
tr:last-child td { border-bottom: 0; }
tbody tr td { background: #eef2f6; }
tbody tr:hover td { background: #e4eaf1; }

/* 一级 / 团长 统计列表：加粗放大 */
table.stats-table {
  font-size: 16px;
  font-weight: 700;
}
table.stats-table th {
  font-size: 15px;
  font-weight: 800;
  color: #334155;
  padding: 12px 14px;
}
table.stats-table td {
  font-size: 16px;
  font-weight: 700;
  padding: 12px 14px;
  color: #0f172a;
}
table.stats-table td.muted {
  font-weight: 600;
  font-size: 14px;
}

.btn {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: #f7f9fc;
  font-size: 12px;
  cursor: pointer;
  color: var(--text);
  line-height: 1.3;
  transition: .12s;
}
.btn:hover { background: #e8edf3; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); color: #fff; }
.btn-danger { background: #fef2f2; border-color: #fecaca; color: #b91c1c; }
.btn-success { background: #ecfdf5; border-color: #a7f3d0; color: #047857; }
.btn-warn { background: #fffbeb; border-color: #fde68a; color: #b45309; }

input, select, textarea {
  padding: 8px 11px;
  border: 1px solid #c8d2de;
  border-radius: 10px;
  font-size: 13px;
  background: #f7f9fc;
  color: var(--text);
  outline: none;
  transition: border .12s, box-shadow .12s;
}
input:focus, select:focus, textarea:focus {
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
label { font-size: 12px; color: var(--muted); display: block; margin-bottom: 5px; font-weight: 500; }
.form-row { margin-bottom: 12px; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 650;
}
.b0 { background: #fef3c7; color: #92400e; }
.b1 { background: #d1fae5; color: #065f46; }
.b2 { background: #fee2e2; color: #991b1b; }

.muted { color: #94a3b8; font-size: 12px; }
.stat { display: flex; gap: 12px; flex-wrap: wrap; }
.stat .item {
  flex: 1;
  min-width: 140px;
  background: linear-gradient(180deg, #e8edf3 0%, #e2e8f0 100%);
  border-radius: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
}
.stat .n { font-size: 24px; font-weight: 750; letter-spacing: -.03em; }
.stat .t { font-size: 12px; color: var(--muted); margin-top: 2px; }

.flash {
  padding: 11px 14px;
  border-radius: 10px;
  margin-bottom: 14px;
  font-size: 13px;
}
.flash.ok { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.flash.err { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }

.mono {
  font-family: "Cascadia Mono", Consolas, "Sarasa Mono SC", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-variant-numeric: slashed-zero tabular-nums;
  font-feature-settings: "zero" 1;
}
.actions form { display: inline; }

/* 登录页 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background:
    radial-gradient(900px 400px at 10% -10%, #dbeafe 0%, transparent 55%),
    radial-gradient(700px 360px at 100% 0%, #ede9fe 0%, transparent 50%),
    var(--bg);
}
.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px 26px;
  box-shadow: var(--shadow);
}
.login-card h1 { margin: 0 0 6px; font-size: 20px; }
.login-card .sub { color: var(--muted); font-size: 13px; margin: 0 0 18px; }
.login-card button {
  width: 100%;
  margin-top: 16px;
  padding: 11px;
  border: 0;
  border-radius: 11px;
  background: var(--primary);
  color: #fff;
  font-weight: 650;
  font-size: 14px;
  cursor: pointer;
}
.login-card button:hover { background: var(--primary-hover); }
.login-card .err {
  background: #fef2f2;
  color: #b91c1c;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 13px;
  margin-bottom: 12px;
}
.login-card .links { text-align: center; margin-top: 14px; font-size: 13px; }

@media (max-width: 720px) {
  .grid2 { grid-template-columns: 1fr; }
  table { display: block; overflow-x: auto; }
  .wrap { padding: 16px 12px 32px; }
}