:root {
  --bg: #f5f1e8;
  --panel: #fffdf8;
  --ink: #2b241d;
  --muted: #6e6254;
  --accent: #b44f2f;
  --accent-dark: #8a371f;
  --line: #ded1c2;
  --success: #2f7d5b;
  --danger: #a53c2a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(180,79,47,.18), transparent 32%),
    linear-gradient(180deg, #f7f3eb 0%, #f0eadf 100%);
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 32px;
  border-bottom: 1px solid rgba(43,36,29,.08);
}
.topbar h1 { margin: 4px 0 0; font-size: 28px; }
.eyebrow { color: var(--accent); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; }
.nav { display: flex; gap: 16px; }
.nav a, .primary-link { color: var(--accent-dark); text-decoration: none; font-weight: 600; }
.page { max-width: 1180px; margin: 0 auto; padding: 28px 20px 40px; }
.panel {
  background: rgba(255,253,248,.92);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 12px 36px rgba(43,36,29,.06);
}
.login-panel { max-width: 420px; margin: 60px auto 0; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px,1fr)); gap: 16px; margin-bottom: 18px; }
.stat-card {
  background: rgba(255,253,248,.92);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
}
.stat-card span { display: block; color: var(--muted); font-size: 13px; }
.stat-card strong { display: block; margin-top: 10px; font-size: 32px; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.section-head h2 { margin: 0; }
.section-head p { margin: 0; color: var(--muted); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; text-align: left; border-bottom: 1px solid rgba(43,36,29,.08); vertical-align: top; }
th { color: var(--muted); font-size: 13px; font-weight: 600; }
.empty { text-align: center; color: var(--muted); }
.form-grid { display: grid; gap: 14px; }
label span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 13px; }
input, button {
  font: inherit;
}
input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.92);
}
button {
  border: 0;
  border-radius: 12px;
  padding: 10px 16px;
  background: #eadbc8;
  color: var(--ink);
  cursor: pointer;
  font-weight: 600;
}
button.primary { background: var(--accent); color: #fff; }
button.danger { background: var(--danger); color: #fff; }
.flash-stack { display: grid; gap: 10px; margin-bottom: 16px; }
.flash { padding: 12px 14px; border-radius: 12px; }
.flash-success { background: rgba(47,125,91,.12); color: var(--success); }
.flash-error { background: rgba(165,60,42,.12); color: var(--danger); }
.flash-info { background: rgba(180,79,47,.12); color: var(--accent-dark); }
.pay-panel { max-width: 760px; margin: 0 auto; text-align: center; }
.pay-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 12px; margin-bottom: 22px; text-align: left; }
.pay-meta span { display: block; color: var(--muted); font-size: 13px; }
.qrcode { max-width: 280px; width: 100%; border-radius: 16px; border: 1px solid var(--line); background: #fff; padding: 12px; }
.muted { color: var(--muted); }
.mono { font-family: Consolas, "Courier New", monospace; }
@media (max-width: 720px) {
  .topbar { flex-direction: column; align-items: flex-start; gap: 14px; }
  .nav { flex-wrap: wrap; }
  .panel { padding: 18px; }
}