:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #17202a;
  --muted: #667085;
  --line: #d8dee6;
  --primary: #116d5b;
  --primary-strong: #0d5145;
  --danger: #d92d20;
  --danger-soft: #ffe4e1;
  --warning: #b54708;
  --ok: #168449;
  --blue: #2463eb;
  --shadow: 0 12px 30px rgba(24, 39, 75, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  background: #101828;
  color: #ffffff;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #17a37f;
  font-size: 22px;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small,
.store-card small {
  color: #c4ccd8;
  margin-top: 4px;
}

.nav {
  display: grid;
  gap: 10px;
}

.nav-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: transparent;
  color: #e4e7ec;
  padding: 13px 14px;
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
}

.nav-item.active,
.nav-item:hover {
  background: #ffffff;
  color: #101828;
}

.store-card {
  margin-top: auto;
  display: grid;
  gap: 7px;
  padding: 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.store-card span {
  color: #c4ccd8;
  font-size: 13px;
}

.workspace {
  padding: 28px;
  min-width: 0;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.page-head,
.panel-head,
.hero-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.page-head {
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 20px;
}

.panel-head p,
.hero-band p {
  color: var(--muted);
  margin-top: 6px;
}

.alarm-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 180px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.alarm-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #98a2b3;
}

.alarm-badge.hot {
  background: var(--danger-soft);
  border-color: #fda29b;
  color: var(--danger);
  animation: alarmFlash 0.7s infinite;
}

.alarm-badge.hot .alarm-dot {
  background: var(--danger);
  box-shadow: 0 0 0 8px rgba(217, 45, 32, 0.12);
}

@keyframes alarmFlash {
  0%,
  100% {
    transform: translateY(0);
    filter: brightness(1);
  }
  50% {
    transform: translateY(-1px);
    filter: brightness(1.12);
  }
}

.stats-grid,
.inventory-grid,
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stats-grid article,
.panel,
.hero-band,
.product-card,
.inventory-card,
.order-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.stats-grid article {
  padding: 18px;
  display: grid;
  gap: 8px;
}

.stats-grid span {
  color: var(--muted);
}

.stats-grid strong {
  font-size: 30px;
}

.panel {
  margin-top: 18px;
  padding: 20px;
}

.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.primary-btn,
.ghost-btn,
.action-btn {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 700;
}

.primary-btn {
  color: #ffffff;
  background: var(--primary);
  padding: 11px 16px;
}

.primary-btn:hover,
.action-btn:hover {
  background: var(--primary-strong);
}

.ghost-btn {
  color: var(--ink);
  background: #eef2f6;
  padding: 11px 16px;
}

.ghost-btn.sound-on {
  color: var(--primary);
  background: #e8f6f2;
}

.order-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.order-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  padding: 16px;
  border-left: 6px solid var(--blue);
}

.order-card.pending {
  border-left-color: var(--danger);
  background: #fff8f7;
  animation: rowFlash 0.8s infinite;
}

.order-card.returning {
  border-left-color: var(--warning);
}

@keyframes rowFlash {
  0%,
  100% {
    border-color: #fda29b;
  }
  50% {
    border-color: var(--danger);
  }
}

.order-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  background: #eef2f6;
  padding: 4px 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.pill.pending {
  background: var(--danger-soft);
  color: var(--danger);
}

.pill.renting {
  background: #dcfae6;
  color: var(--ok);
}

.pill.returning {
  background: #fef0c7;
  color: var(--warning);
}

.action-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 128px;
}

.action-btn {
  color: #ffffff;
  background: var(--primary);
  padding: 10px 12px;
}

.action-btn.secondary {
  background: #344054;
}

.inventory-grid,
.product-grid {
  margin-top: 16px;
}

.inventory-card,
.product-card {
  padding: 16px;
}

.inventory-card {
  display: grid;
  gap: 10px;
}

.inventory-top,
.product-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.device-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 8px;
  background: #e8f6f2;
  color: var(--primary);
  font-size: 23px;
}

.device-icon.mini {
  display: inline-grid;
  width: 28px;
  height: 28px;
  margin-right: 6px;
  font-size: 14px;
  vertical-align: middle;
}

.stock-line {
  color: var(--muted);
}

.stock-bar {
  height: 9px;
  overflow: hidden;
  border-radius: 99px;
  background: #eef2f6;
}

.stock-bar span {
  display: block;
  height: 100%;
  width: 50%;
  background: var(--primary);
}

.client-source,
.seat-input {
  display: grid;
  gap: 7px;
  min-width: 180px;
}

label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

select,
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 11px 12px;
  outline: none;
}

.hero-band {
  padding: 22px;
  margin-bottom: 18px;
}

.product-card {
  display: grid;
  gap: 14px;
}

.product-card.disabled {
  opacity: 0.55;
}

.rent-row {
  display: grid;
  grid-template-columns: 1fr 110px;
  gap: 10px;
}

.empty {
  padding: 26px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 3;
    padding: 14px;
  }

  .nav {
    grid-template-columns: 1fr 1fr;
  }

  .store-card {
    display: none;
  }

  .workspace {
    padding: 18px;
  }

  .stats-grid,
  .inventory-grid,
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-head,
  .panel-head,
  .hero-band,
  .order-card {
    align-items: stretch;
    flex-direction: column;
    display: flex;
  }

  h1 {
    font-size: 26px;
  }

  .stats-grid,
  .inventory-grid,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .action-stack,
  .client-source,
  .seat-input {
    width: 100%;
  }
}