:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #1f2329;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #c55a11;
  --brand-weak: #fdf0e6;
  --ok: #1a7f37;
  --ok-weak: #e7f6ec;
  --warn: #b54708;
  --warn-weak: #fef3e6;
  --err: #b42318;
  --err-weak: #fde6e3;
  --blue: #2563eb;
  --blue-weak: #e8f0fe;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16,24,40,.08), 0 1px 2px rgba(16,24,40,.06);
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6; font-size: 14px;
}
.wrap { max-width: 960px; margin: 0 auto; padding: 24px 16px 64px; }
header.top { display: flex; align-items: center; gap: 12px; margin-bottom: 4px; }
header.top h1 { font-size: 22px; margin: 0; font-weight: 700; }
.badge {
  display: inline-flex; align-items: center; gap: 6px; background: var(--ok-weak);
  color: var(--ok); border: 1px solid #b7e4c7; padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
}
.subtitle { color: var(--muted); margin: 0 0 20px; font-size: 13px; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; margin-bottom: 16px; box-shadow: var(--shadow);
}
.card h2 { font-size: 16px; margin: 0 0 14px; display: flex; align-items: center; gap: 8px; }
.step-no {
  width: 22px; height: 22px; border-radius: 50%; background: var(--brand); color: #fff;
  font-size: 12px; display: inline-flex; align-items: center; justify-content: center; font-weight: 700;
}
.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 10px; }
.field label { font-size: 12px; color: var(--muted); font-weight: 600; }
input[type=file] { font-size: 13px; }
select, input[type=number] {
  padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; background: #fff;
  font-size: 13px; color: var(--ink); min-width: 120px;
}
select:focus, input:focus { outline: 2px solid var(--brand-weak); border-color: var(--brand); }
.status { font-size: 13px; color: var(--muted); margin-top: 6px; }
.status.ok { color: var(--ok); }
.status.err { color: var(--err); }
.hint { font-size: 12px; color: var(--muted); margin-top: 6px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px; border: none; cursor: pointer;
  padding: 10px 18px; border-radius: 10px; font-size: 14px; font-weight: 600; transition: .15s;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: #a8480d; }
.btn-ghost { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { background: #f9fafb; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-lg { padding: 13px 26px; font-size: 15px; }

.toggle { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.toggle label { padding: 9px 16px; cursor: pointer; font-size: 13px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.toggle input { display: none; }
.toggle label.active { background: var(--brand-weak); color: var(--brand); }

table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
table.tbl th, table.tbl td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); }
table.tbl th { color: var(--muted); font-weight: 600; background: #fafafa; }
table.tbl tr:hover td { background: #fcfcfd; }
.tag { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag-add { background: var(--ok-weak); color: var(--ok); }
.tag-upd { background: var(--blue-weak); color: var(--blue); }
.tag-skip { background: #f1f3f5; color: var(--muted); }
.tag-inv { background: var(--err-weak); color: var(--err); }

.stats { display: flex; flex-wrap: wrap; gap: 10px; margin: 6px 0 2px; }
.stat {
  flex: 1 1 120px; background: #fafafa; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px;
}
.stat .n { font-size: 22px; font-weight: 700; }
.stat .l { font-size: 12px; color: var(--muted); }
.stat.add .n { color: var(--ok); }
.stat.upd .n { color: var(--blue); }
.stat.skip .n { color: var(--muted); }
.stat.inv .n { color: var(--err); }

.mapping td select { width: 100%; }
.muted { color: var(--muted); }
.err-box { background: var(--err-weak); border: 1px solid #f3c2ba; color: var(--err); padding: 10px 14px; border-radius: 10px; font-size: 13px; }
.progress { font-size: 13px; color: var(--brand); margin-top: 8px; }
.hidden { display: none; }
a.dl { color: var(--brand); font-weight: 600; text-decoration: none; }
a.dl:hover { text-decoration: underline; }
.footer { text-align: center; color: var(--muted); font-size: 12px; margin-top: 24px; }
code.k { background: #f1f3f5; padding: 1px 6px; border-radius: 5px; font-size: 12px; }