:root { color-scheme: light; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: #f5f7fb;
  color: #172033;
}
.container { max-width: 760px; margin: 0 auto; padding: 18px; }
.header {
  padding: 24px 20px;
  border-radius: 18px;
  background: linear-gradient(135deg, #0f2a46, #1f5d7a);
  color: #fff;
  box-shadow: 0 10px 26px rgba(15,42,70,.22);
}
.header h1 { margin: 0; font-size: 24px; letter-spacing: .5px; }
.header p { margin: 8px 0 0; opacity: .88; font-size: 14px; }
.card {
  background: #fff;
  border-radius: 16px;
  padding: 18px;
  margin-top: 16px;
  box-shadow: 0 8px 20px rgba(26, 39, 61, .06);
  border: 1px solid rgba(20, 50, 80, .06);
}
label { display: block; margin: 12px 0 6px; color: #39465e; font-size: 14px; font-weight: 600; }
input, select, textarea {
  width: 100%; padding: 12px 13px; border: 1px solid #d9e0ec; border-radius: 12px;
  font-size: 15px; background: #fbfcff; outline: none;
}
textarea { min-height: 92px; resize: vertical; }
button {
  width: 100%; border: 0; border-radius: 13px; padding: 13px 16px; margin-top: 16px;
  background: #12365a; color: #fff; font-size: 16px; font-weight: 700;
}
button.secondary { background: #edf2f7; color: #12365a; }
.notice { font-size: 13px; line-height: 1.65; color: #667188; }
.msg { margin-top: 12px; font-size: 14px; color: #b42318; white-space: pre-line; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.kpi { background: #f7f9fc; border-radius: 14px; padding: 14px; }
.kpi .name { color: #728096; font-size: 12px; }
.kpi .value { margin-top: 6px; font-size: 20px; font-weight: 800; }
.tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 16px; }
.tabs button { margin: 0; padding: 11px 8px; font-size: 14px; background: #e8eef6; color: #12365a; }
.tabs button.active { background: #12365a; color: white; }
.table-wrap { overflow-x: auto; margin-top: 12px; }
table { width: 100%; border-collapse: collapse; min-width: 680px; font-size: 13px; }
th, td { padding: 10px 8px; border-bottom: 1px solid #edf1f7; text-align: left; white-space: nowrap; }
th { background: #f3f6fb; color: #42516b; font-weight: 700; }
.tag { display: inline-block; padding: 3px 8px; border-radius: 999px; background: #eef5ff; color: #17406b; font-size: 12px; }
.danger { background: #fff3f3; color: #b42318; }
.success { background: #edf8f2; color: #117045; }
.footer { color: #7a8497; font-size: 12px; text-align: center; padding: 20px 0 10px; }
@media (max-width: 520px) {
  .container { padding: 12px; }
  .grid { grid-template-columns: 1fr 1fr; }
  .header h1 { font-size: 21px; }
  .card { padding: 15px; }
}