:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1d2733;
  --muted: #5f6b7a;
  --line: #dde3ec;
  --brand: #1768ff;
  --brand-soft: #e8f0ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.page-header {
  background: linear-gradient(135deg, #0f62fe, #3f8cff);
  color: #fff;
  padding: 24px 20px 18px;
}

.page-header h1 {
  margin: 0 0 6px;
  font-size: 28px;
}

.subtle {
  opacity: 0.92;
  margin: 0 0 12px;
}

.nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav a {
  color: #fff;
  text-decoration: none;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
}

.nav a.active,
.nav a:hover {
  background: rgba(255, 255, 255, 0.22);
}

.container {
  max-width: 1180px;
  margin: 18px auto 28px;
  padding: 0 16px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 12px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}

.card h2 {
  margin: 0 0 10px;
  font-size: 18px;
}

.stat .k {
  color: var(--muted);
  margin: 0 0 6px;
}

.stat .v {
  margin: 0;
  font-size: 30px;
  font-weight: 700;
  color: #0f4fd9;
}

.form-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

label {
  color: var(--muted);
}

input,
select,
button {
  height: 34px;
  border-radius: 8px;
  border: 1px solid #ccd5e2;
  padding: 0 10px;
  font-size: 14px;
}

input,
select {
  min-width: 220px;
  background: #fff;
}

button {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  cursor: pointer;
}

button:hover {
  filter: brightness(0.95);
}

.result-panel {
  margin-top: 12px;
  background: #fff;
  border: 1px dashed #cfd9e8;
  border-radius: 10px;
  padding: 12px;
  min-height: 54px;
}

.result-title {
  margin: 0 0 8px;
  font-size: 16px;
}

.status-ok {
  display: inline-block;
  background: #e9f8ee;
  color: #0b7d36;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 13px;
}

.status-error {
  color: #b42318;
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid #ebf0f6;
  padding: 8px 6px;
  text-align: left;
  font-size: 14px;
}

thead th {
  color: #5a6b83;
  background: var(--brand-soft);
}