:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --ink: #1f2733;
  --muted: #6b7686;
  --line: #e3e8f0;
  --primary: #2f5496;
  --primary-d: #244277;
  --accent: #4472c4;
  --ok: #2e9e5b;
  --danger: #d24b4b;
  --shadow: 0 2px 10px rgba(31, 39, 51, 0.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

.topbar {
  background: linear-gradient(120deg, var(--primary), var(--accent));
  color: #fff;
  padding: 18px 24px;
  box-shadow: var(--shadow);
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo { font-size: 30px; }
.topbar h1 { font-size: 20px; margin: 0; font-weight: 700; }
.topbar .sub { margin: 2px 0 0; font-size: 13px; opacity: 0.9; }

.container { max-width: 1080px; margin: 0 auto; padding: 24px 16px 60px; }

.dropzone {
  border: 2px dashed var(--line);
  background: var(--card);
  border-radius: 14px;
  padding: 36px 20px;
  text-align: center;
  transition: border-color .15s, background .15s;
  cursor: pointer;
}
.dropzone.drag { border-color: var(--accent); background: #eef4ff; }
.dz-inner { pointer-events: none; }
.dz-icon { font-size: 38px; }
.dz-title { font-size: 16px; margin: 8px 0 4px; font-weight: 600; }
.dz-hint { color: var(--muted); font-size: 13px; margin: 0; }
.linkbtn { background: none; border: none; color: var(--accent); font: inherit; cursor: pointer; text-decoration: underline; padding: 0; }

.global-actions {
  display: flex; align-items: center; gap: 12px;
  margin: 18px 0 6px; flex-wrap: wrap;
}
.stat { color: var(--muted); font-size: 13px; }

.btn {
  border: 1px solid transparent; border-radius: 8px;
  padding: 9px 16px; font-size: 14px; cursor: pointer; font-weight: 600;
  transition: filter .15s, background .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-d); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { background: #f0f3f8; }
.btn-sm { padding: 6px 12px; font-size: 13px; }

.card {
  background: var(--card); border-radius: 14px; box-shadow: var(--shadow);
  margin-top: 18px; overflow: hidden;
}
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.card-head .title { font-weight: 700; font-size: 15px; }
.card-head .title small { color: var(--muted); font-weight: 500; margin-left: 8px; }
.card-head .meta { color: var(--muted); font-size: 13px; }
.card-actions { display: flex; gap: 8px; }

.info-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px 20px; padding: 14px 18px; border-bottom: 1px solid var(--line);
}
.info-grid .it { font-size: 13px; }
.info-grid .it b { color: var(--muted); font-weight: 600; margin-right: 6px; }

.tbl-wrap { overflow-x: auto; padding: 12px 18px 18px; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { border: 1px solid var(--line); padding: 7px 10px; text-align: left; white-space: nowrap; }
thead th { background: var(--accent); color: #fff; position: sticky; top: 0; }
tbody tr:nth-child(even) { background: #fafbfe; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.total-row td { background: #eef4ff; font-weight: 700; }

.status {
  margin: 16px 0; padding: 12px 16px; border-radius: 10px;
  background: #fff7e6; color: #8a5a00; font-size: 14px; border: 1px solid #ffe0a3;
}
.status.err { background: #fdeaea; color: #a11; border-color: #f5c2c2; }

.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 20px; }
.footer .tip { font-size: 12px; color: var(--muted); }
.footer code { background: #eef1f6; padding: 1px 6px; border-radius: 4px; font-size: 12px; }

.badge-ok { color: var(--ok); font-weight: 700; }