:root{--line:#111;--ui:#2457d6;--muted:#667085}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:"Microsoft JhengHei","PingFang TC","Noto Sans TC",sans-serif;background:#fff;color:#111}
button,input,select{font:inherit}
button{cursor:pointer}
.app{display:grid;grid-template-columns:340px 1fr;min-height:100vh}
.sidebar{background:#fff;border-right:1px solid #d0d5dd;padding:20px;height:100vh;overflow:auto;position:sticky;top:0}
.sidebar h1{font-size:20px;margin:0}.version{font-size:11px;color:var(--muted)}
.sidebar section{border-top:1px solid #eaecf0;margin-top:16px;padding-top:16px}
.sidebar h2{font-size:14px;margin:0 0 8px}
.sidebar label{display:block;font-size:11px;color:var(--muted);margin:8px 0 4px}
.sidebar input,.sidebar select{width:100%;padding:9px;border:1px solid #d0d5dd;border-radius:8px;background:#fff}
.file-button{display:block;background:#fff;border:1px solid #d0d5dd;border-radius:8px;padding:10px;text-align:center;cursor:pointer}
.file-button input{display:none}
.drop-zone{margin-top:8px;border:2px dashed #c4c9d1;border-radius:8px;padding:18px 8px;text-align:center;font-size:12px;color:var(--muted);background:#fff}
.drop-zone.over{border-color:var(--ui);color:var(--ui)}
.help,.status{font-size:11px;color:var(--muted)}
.status{text-align:center;min-height:17px;margin-top:7px}
.primary{width:100%;margin-top:10px;border:0;border-radius:9px;background:var(--ui);color:#fff;padding:11px}
.workspace{padding:26px;overflow:auto;background:#fff}.pages{display:grid;gap:22px;justify-content:center}
.page{width:210mm;height:297mm;background:#fff;margin:auto;position:relative;overflow:hidden;box-shadow:0 6px 24px #0002}
.outer-frame{position:absolute;left:22mm;top:12mm;width:178mm;height:273mm;border:.45mm solid var(--line)}
.left-strip{position:absolute;left:22mm;top:12mm;width:10mm;height:273mm;border-right:.45mm solid var(--line);display:flex;flex-direction:column;align-items:center;background:#fff}
.vertical-text{display:flex;flex-direction:column;align-items:center;justify-content:flex-start;font-size:14pt;line-height:1.05;margin-top:5mm}
.vertical-text span{display:block;width:1em;height:1em;line-height:1em;text-align:center}
.status-text{margin-top:6mm}
.scan-area{position:absolute;left:35mm;top:17mm;width:160mm;height:263mm;background:#fff;overflow:hidden;display:flex;align-items:center;justify-content:center}
.scan-area img{display:none;max-width:100%;max-height:100%;width:100%;height:100%;object-fit:contain;background:#fff}
.placeholder{text-align:center;color:#98a2b3}
.placeholder-title{font-size:16pt;margin-bottom:3mm}
.placeholder-sub{font-size:11pt}
.pdf-exporting{box-shadow:none!important;background:#fff!important}
.pdf-exporting *{box-shadow:none!important;text-shadow:none!important;filter:none!important}
@media(max-width:900px){.app{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.workspace{padding:12px}}
@media print{body{background:#fff}.sidebar{display:none}.app{display:block}.workspace{padding:0}.page{box-shadow:none;margin:0}}
.image-list{display:grid;gap:6px;margin-top:8px}
.image-item{display:grid;grid-template-columns:1fr auto;gap:6px;align-items:center;border:1px solid #d0d5dd;border-radius:7px;padding:7px;font-size:11px;background:#fff}
.image-item button{border:0;border-radius:6px;background:#fff1f0;color:#b42318;padding:5px 8px}
.page-number{position:absolute;right:7mm;bottom:4mm;font-size:9pt;color:#777}

.page-wrap{width:210mm}
.page-controls{
  display:grid;
  grid-template-columns:auto 1fr 130px auto;
  gap:8px;
  align-items:center;
  margin-bottom:7px;
  padding:8px 10px;
  background:#fff;
  border:1px solid #d0d5dd;
  border-radius:9px;
  font-size:11px
}
.page-controls strong{white-space:nowrap}
.page-controls input,.page-controls select{
  width:100%;
  padding:6px 8px;
  border:1px solid #d0d5dd;
  border-radius:7px;
  background:#fff
}
.page-controls button{
  border:0;
  border-radius:7px;
  padding:7px 9px;
  background:#fff1f0;
  color:#b42318
}
@media(max-width:900px){
  .page-controls{grid-template-columns:1fr 1fr}
  .page-controls strong{grid-column:1/-1}
}
@media print{
  .page-controls{display:none!important}
}