body.az-batch {
  margin: 0;
  min-height: 100dvh;
  background:
    radial-gradient(900px 420px at 8% -10%, rgba(255, 186, 120, 0.28), transparent 55%),
    radial-gradient(700px 380px at 110% 0%, rgba(167, 214, 180, 0.28), transparent 50%),
    #f6f1e8;
  font-family: "DM Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #1c1917;
}

.az-batch .topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: rgba(255, 253, 245, 0.94);
  border-bottom: 2px solid #ffe082;
}

.az-batch .topbar h1 {
  margin: 0;
  flex: 1;
  font-family: "Baloo 2", "Fredoka", sans-serif;
  font-weight: 800;
  font-size: 1.25rem;
  color: #e53935;
}

.batch-app {
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 16px 48px;
}

.batch-card {
  background: rgba(255, 255, 255, 0.92);
  border: 3px solid #fff;
  border-radius: 24px;
  padding: 16px 18px 14px;
  box-shadow: 0 12px 32px rgba(55, 71, 79, 0.12);
  margin-bottom: 14px;
}

.batch-card h2 {
  margin: 0 0 8px;
  font-family: "Fredoka", "Microsoft YaHei", sans-serif;
  font-size: 1.2rem;
}

.batch-card p {
  margin: 0 0 12px;
  color: #546e7a;
  line-height: 1.5;
}

.batch-note {
  background: #fff8e1;
  border: 2px dashed #ffcc80;
  border-radius: 16px;
  padding: 10px 12px;
  color: #ef6c00;
  font-size: 0.95rem;
}

.batch-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

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

.batch-chip {
  appearance: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 2px solid #e7e5e4;
  background: #fff;
  font: inherit;
  font-family: "Fredoka", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  color: #1c1917;
}

.batch-chip.is-on {
  background: #e53935;
  color: #fff;
  border-color: #ffccbc;
}

.batch-chip:disabled,
.batch-chip.is-soon {
  opacity: 0.38;
  cursor: not-allowed;
}

.batch-options {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
}

.batch-options label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-weight: 600;
}

.batch-status {
  min-height: 1.4em;
  margin: 0 0 10px;
  color: #37474f;
  font-weight: 600;
}

.batch-progress {
  height: 10px;
  border-radius: 999px;
  background: #eceff1;
  overflow: hidden;
  margin-bottom: 12px;
}

.batch-progress > i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #e53935, #ff7043);
  transition: width 0.2s ease;
}

.preview-label {
  text-align: center;
  color: #607d8b;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 18px 0 0;
}

.batch-root {
  padding-bottom: 40px;
}

.batch-letter-tag {
  display: none;
}

.frame-dock {
  position: absolute;
  left: -100vw;
  top: 0;
  width: 210mm;
  height: 297mm;
  overflow: hidden;
  pointer-events: none;
}

.frame-dock iframe {
  width: 210mm;
  min-height: 297mm;
  border: 0;
  background: #fff;
}

@page {
  size: A4 portrait;
  margin: 0;
}

@media print {
  .no-print, .topbar, .batch-app, .preview-label, .frame-dock {
    display: none !important;
  }
  html, body.az-batch {
    background: #fff !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  .batch-root {
    padding: 0;
  }
  .batch-letter.pack {
    display: block !important;
  }
  .sheet-frame {
    width: auto !important;
    height: auto !important;
    margin: 0;
    overflow: visible;
  }
  .sheet {
    transform: none !important;
    box-shadow: none !important;
    border-radius: 0;
    width: 210mm;
    height: 297mm;
    page-break-after: always;
    page-break-inside: avoid;
    overflow: hidden;
  }
  .sheet:last-child,
  .batch-letter:last-child .sheet:last-child {
    page-break-after: auto;
  }
}

@media (max-width: 720px) {
  body.az-hub .az-batch-link,
  .az-batch-link {
    font-size: 0.72rem;
    padding: 5px 8px;
  }
}