:root {
  --ink: #10233f;
  --muted: #66758d;
  --paper: #f5f8ff;
  --panel: #ffffff;
  --line: #d8e3f4;
  --blue: #1458d6;
  --blue-2: #0b3f9f;
  --blue-soft: #eaf2ff;
  --cyan: #0ea5e9;
  --red: #c24135;
  --shadow: 0 18px 44px rgba(33, 84, 167, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 0%, rgba(20, 88, 214, 0.16), transparent 34rem),
    radial-gradient(circle at 92% 8%, rgba(14, 165, 233, 0.12), transparent 28rem),
    linear-gradient(135deg, rgba(20, 88, 214, 0.06), transparent 42%),
    var(--paper);
  color: var(--ink);
  font-family: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
}

a {
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

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

th,
td {
  padding: 13px 12px;
  border-bottom: 1px solid rgba(216, 227, 244, 0.82);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

td {
  color: #182b47;
}

input,
select,
textarea {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fbfdff;
  color: var(--ink);
  padding: 9px 11px;
  outline: none;
}

textarea {
  width: 100%;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(20, 88, 214, 0.12);
}

.admin-app {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100vh;
}

.admin-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 24px 18px;
  border-right: 1px solid rgba(216, 227, 244, 0.92);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 900;
}

.brand-logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.admin-menu {
  display: grid;
  gap: 7px;
  margin-top: 34px;
}

.admin-menu a {
  padding: 12px 13px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 800;
}

.admin-menu a:hover,
.admin-menu a.active {
  background: var(--blue-soft);
  color: var(--blue-2);
}

.admin-main {
  min-width: 0;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 30px;
  border-bottom: 1px solid rgba(216, 227, 244, 0.86);
  background: rgba(245, 248, 255, 0.72);
  backdrop-filter: blur(14px);
}

.admin-topbar span {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.content {
  padding: 30px;
}

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.page-head h1,
.placeholder-panel h1 {
  margin: 0;
  font-size: 34px;
  letter-spacing: -0.04em;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.metric-card,
.panel,
.placeholder-panel {
  border: 1px solid rgba(216, 227, 244, 0.92);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}

.metric-card {
  min-height: 118px;
  padding: 20px;
}

.metric-card span {
  color: var(--muted);
  font-weight: 800;
}

.metric-card strong {
  display: block;
  margin-top: 18px;
  font-size: 30px;
  letter-spacing: -0.03em;
}

.metric-card.accent {
  background: linear-gradient(135deg, var(--blue-2), var(--blue));
  color: #ffffff;
}

.metric-card.accent span {
  color: #cfe1ff;
}

.split-grid,
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
}

.panel {
  overflow: hidden;
}

.panel h2,
.panel-head h2 {
  margin: 0;
  font-size: 18px;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
}

.detail-card,
.panel:has(.remark-form),
.panel:has(.json-box) {
  padding: 20px;
}

dl {
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 12px 18px;
}

dt {
  color: var(--muted);
  font-weight: 800;
}

dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
  padding: 14px;
  border: 1px solid rgba(216, 227, 244, 0.92);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
}

.section-tabs {
  display: inline-flex;
  gap: 6px;
  margin-bottom: 16px;
  padding: 6px;
  border: 1px solid rgba(216, 227, 244, 0.92);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.84);
}

.section-tabs a {
  padding: 10px 16px;
  border-radius: 10px;
  color: var(--muted);
  font-weight: 800;
}

.section-tabs a.active {
  background: var(--blue);
  color: #ffffff;
}

.primary-button,
.danger-button,
.ghost-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border: 0;
  border-radius: 10px;
  padding: 0 16px;
  font-weight: 900;
}

.primary-button {
  background: var(--blue);
  color: #ffffff;
}

.danger-button {
  background: var(--red);
  color: #ffffff;
}

.ghost-button {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--blue);
}

.small {
  min-height: 38px;
}

.status-pill {
  display: inline-flex;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue-2);
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 900;
}

.mono {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 12px;
}

.pager {
  padding: 16px 18px;
  color: var(--muted);
  font-weight: 800;
}

.remark-form {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.refund-form {
  display: grid;
  gap: 12px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.refund-form label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.json-box {
  max-height: 320px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0f1f3a;
  color: #dceaff;
  padding: 14px;
  white-space: pre-wrap;
}

.placeholder-panel {
  display: grid;
  min-height: 420px;
  place-content: center;
  padding: 42px;
  text-align: center;
}

.placeholder-panel p:last-child {
  max-width: 560px;
  color: var(--muted);
  font-size: 16px;
}

.login-body {
  min-height: 100vh;
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(100%, 430px);
  border: 1px solid rgba(216, 227, 244, 0.94);
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 30px 80px rgba(33, 84, 167, 0.18);
  padding: 34px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.login-brand p,
.login-brand h1,
.login-copy,
.login-hint {
  margin: 0;
}

.login-brand h1 {
  font-size: 30px;
  letter-spacing: -0.04em;
}

.login-copy {
  margin-top: 20px;
  color: var(--muted);
}

.login-form {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.login-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-weight: 800;
}

.alert {
  border-radius: 10px;
  background: var(--blue-soft);
  padding: 10px 12px;
  color: var(--blue-2);
  font-weight: 800;
}

.alert.error {
  background: #f3d9d5;
  color: var(--red);
}

.login-hint {
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 980px) {
  .admin-app,
  .split-grid,
  .detail-grid,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    position: static;
    height: auto;
  }
}