:root {
  --bg: #eef1f6;
  --card: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --line: #e8ebf0;
  --brand: #2563eb;
  --brand-soft: #eff4ff;
  --up: #dc2626;
  --down: #16a34a;
  --warn: #d97706;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 16px rgba(16, 24, 40, .06);
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  font-size: 14px;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 顶部导航 */
.topbar {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  color: #fff; padding: 0 28px; height: 58px;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(0,0,0,.25);
}
.topbar .brand { font-size: 17px; font-weight: 600; letter-spacing: .5px; }
.topbar .brand span { color: #7dd3fc; font-weight: 400; margin-left: 8px; font-size: 13px; }
.topbar nav a {
  color: #b6c4d8; margin-left: 6px; padding: 7px 14px; border-radius: 8px;
  font-size: 14px; transition: all .15s;
}
.topbar nav a:hover { color: #fff; background: rgba(255,255,255,.1); text-decoration: none; }
.topbar nav a.active { color: #fff; background: var(--brand); }

main { max-width: 1160px; margin: 24px auto; padding: 0 18px 40px; }

/* 卡片 */
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px 24px; margin-bottom: 20px; border: 1px solid rgba(232,235,240,.8);
}
.card h2 {
  font-size: 15px; margin: 0 0 14px; display: flex; align-items: center; gap: 8px;
}
.card h2::before { content: ""; width: 4px; height: 16px; border-radius: 2px; background: var(--brand); }
.card h2 .more { margin-left: auto; font-size: 12.5px; font-weight: 400; }

/* 统计卡 */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px 20px; border: 1px solid rgba(232,235,240,.8);
}
.stat .label { color: var(--muted); font-size: 12.5px; }
.stat .value { font-size: 26px; font-weight: 700; margin-top: 6px; font-variant-numeric: tabular-nums; }
.stat .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }

/* 表格 */
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th {
  color: var(--muted); font-weight: 500; text-align: left; font-size: 12.5px;
  padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap;
  background: #fafbfc;
}
td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tbody tr:hover { background: #f8fafd; }
tbody tr:last-child td { border-bottom: 0; }
.num { font-variant-numeric: tabular-nums; }

.up { color: var(--up); } .down { color: var(--down); }
.muted { color: var(--muted); }
.empty { color: var(--muted); font-size: 13px; padding: 14px 2px; }
.tip { color: var(--muted); font-size: 12px; line-height: 1.7; }

/* 徽章 */
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 500; white-space: nowrap;
  background: var(--brand-soft); color: var(--brand);
}
.badge.green { background: #ecfdf3; color: var(--down); }
.badge.orange { background: #fff7ed; color: var(--warn); }
.badge.red { background: #fef2f2; color: var(--up); }
.badge.gray { background: #f3f4f6; color: var(--muted); }

/* 按钮与表单 */
.btn {
  display: inline-block; border: 0; border-radius: 8px; padding: 7px 16px;
  font-size: 13px; cursor: pointer; background: var(--brand); color: #fff;
  transition: filter .15s;
}
.btn:hover { filter: brightness(1.1); }
.btn.red { background: var(--up); }
.btn.green { background: var(--down); }
.btn.gray { background: #e5e7eb; color: #4b5563; }
.btn.orange { background: var(--warn); }
.btn.sm { padding: 5px 12px; font-size: 12.5px; }
input, select {
  padding: 7px 10px; border: 1px solid #d1d5db; border-radius: 8px; font-size: 13px;
  outline: none; transition: border .15s; background: #fff;
}
input:focus { border-color: var(--brand); }
input.sm { width: 84px; padding: 5px 8px; }
.inline-form { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

.footer { text-align: center; color: #9ca3af; font-size: 12px; padding: 8px 0 24px; }

@media (max-width: 720px) {
  .topbar { flex-direction: column; height: auto; padding: 10px 14px; gap: 8px; }
  .topbar nav { display: flex; flex-wrap: wrap; gap: 2px; }
  .topbar nav a { margin-left: 0; padding: 6px 10px; font-size: 13px; }
  main { margin: 14px auto; padding: 0 10px 30px; }
  .card { padding: 14px 14px; }
  .stat-row { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat .value { font-size: 20px; }
  .btn { padding: 9px 16px; font-size: 14px; }
  .btn.sm { padding: 7px 12px; font-size: 13px; }
  input, select { font-size: 16px; }  /* 防 iOS 聚焦自动放大 */
  input.sm { width: 72px; }

  /* 表格 → 卡片式布局 */
  table.responsive thead { display: none; }
  table.responsive, table.responsive tbody { display: block; }
  table.responsive tr {
    display: block; border: 1px solid var(--line); border-radius: 10px;
    margin-bottom: 10px; padding: 6px 10px; background: #fff;
  }
  table.responsive td {
    display: flex; justify-content: space-between; align-items: center;
    gap: 10px; border: 0; padding: 7px 2px; font-size: 14px;
  }
  table.responsive td::before {
    content: attr(data-label); color: var(--muted); font-size: 12.5px; flex-shrink: 0;
  }
  table.responsive td[data-label=""] { display: block; }
  table.responsive td[data-label=""]::before { content: none; }
  table.responsive td .inline-form { justify-content: flex-end; width: 100%; }
  table.responsive tr:hover { background: #fff; }
}

/* 弹窗（除权修正等） */
.modal-mask {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(15, 23, 42, .45);
  align-items: center; justify-content: center; padding: 20px;
}
.modal-mask.show { display: flex; }
.modal {
  background: var(--card); border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(15, 23, 42, .25);
  width: 100%; max-width: 380px; padding: 22px 22px 18px;
}
.modal h3 { margin: 0 0 4px; font-size: 16px; }
.modal .sub { color: var(--muted); font-size: 12.5px; margin-bottom: 16px; }
.modal .row { display: flex; justify-content: space-between; padding: 7px 0; font-size: 13.5px; }
.modal .row .v { font-variant-numeric: tabular-nums; font-weight: 600; }
.modal .row.arrow .v { color: var(--brand); }
.modal input[type="number"] {
  width: 100%; padding: 10px 12px; font-size: 15px;
  border: 1px solid var(--line); border-radius: 8px; margin: 6px 0 4px;
}
.modal .preview {
  background: var(--brand-soft); border-radius: 8px;
  padding: 8px 14px; margin: 10px 0 14px;
}
.modal .actions { display: flex; gap: 10px; justify-content: flex-end; }