:root {
  --ink: #1c1915;
  --muted: #5c564c;
  --line: #d9d2c5;
  --paper: #f4f0e8;
  --sheet: #fff;
  --accent: #8c2f1b;
  --dim: #1d4e89;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 15px/1.45 "PingFang TC", "Noto Sans TC", sans-serif;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  padding: 18px 22px 12px;
  border-bottom: 1px solid var(--line);
}
header h1 { margin: 0; font-size: 22px; font-weight: 650; }
.brand { margin: 0; color: var(--accent); font-size: 12px; letter-spacing: 0.08em; }
header a { color: var(--dim); }
main {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 16px;
  padding: 16px;
  align-items: start;
}
.panel {
  background: #fff;
  border: 1px solid var(--line);
  padding: 14px;
  position: sticky;
  top: 12px;
}
label { display: block; margin: 0 0 10px; color: var(--muted); font-size: 13px; }
select, input {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 7px 8px;
  font: inherit;
  color: var(--ink);
  background: #fff;
  border: 1px solid #c9c1b4;
}
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.note { min-height: 1.2em; margin: 0 0 10px; color: var(--accent); font-size: 13px; }
dl { margin: 8px 0; display: grid; grid-template-columns: 92px 1fr; gap: 3px 8px; font-size: 13px; }
dt { color: var(--muted); }
dd { margin: 0; font-variant-numeric: tabular-nums; }
.actions { display: flex; gap: 8px; }
button {
  flex: 1;
  padding: 8px 10px;
  font: inherit;
  background: var(--ink);
  color: #fff;
  border: 0;
  cursor: pointer;
}
button#print { background: #fff; color: var(--ink); border: 1px solid var(--ink); }
.sheet-wrap { overflow: auto; background: #e4ddd2; padding: 12px; }
#sheet svg { width: 100%; height: auto; background: var(--sheet); box-shadow: 0 1px 4px rgba(0,0,0,.12); }
@media (max-width: 960px) {
  main { grid-template-columns: 1fr; }
  .panel { position: static; }
}
@media print {
  header, .panel { display: none; }
  body, .sheet-wrap { background: #fff; padding: 0; }
  main { display: block; }
}