/* 移动端优先的简洁样式 */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #f2f4f7;
  --card: #ffffff;
  --text: #1a232e;
  --muted: #6b7686;
  --line: #e3e7ee;
  --primary: #1465d8;
  --ok: #14803c;
  --ok-bg: #e4f4ea;
  --bad: #c62828;
  --bad-bg: #fdeaea;
}
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
#app { max-width: 520px; margin: 0 auto; padding: 12px 12px 90px; }
.loading { text-align: center; color: var(--muted); padding: 40px 0; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 2px 12px;
}
.topbar h1 { font-size: 20px; }
.topbar .links a, .btn-link {
  color: var(--primary); text-decoration: none; font-size: 15px;
  background: none; border: none; padding: 6px; cursor: pointer;
}

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 14px; margin-bottom: 12px;
}
.card h2 { font-size: 16px; margin-bottom: 8px; }
.muted { color: var(--muted); font-size: 13px; }

.scheme-item {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px; margin-bottom: 10px;
}
.scheme-item .info { flex: 1; min-width: 0; cursor: pointer; }
.scheme-item .name { font-size: 17px; font-weight: 600; }
.scheme-item .desc { font-size: 13px; color: var(--muted); margin-top: 2px; }
.scheme-item .edit { flex-shrink: 0; }

button {
  font-family: inherit; font-size: 16px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--card); color: var(--text);
  padding: 10px 14px; cursor: pointer;
}
button:active { opacity: .75; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn-block { display: block; width: 100%; padding: 13px; font-size: 17px; }
.btn-sm { font-size: 14px; padding: 6px 10px; }
button:disabled { opacity: .5; }

.field { margin-bottom: 12px; }
.field label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 4px; }
.field input {
  width: 100%; font-size: 17px; padding: 11px 12px;
  border: 1px solid var(--line); border-radius: 10px; background: #fff;
  font-family: inherit;
}
.field input:focus { outline: 2px solid var(--primary); border-color: transparent; }

/* 样品录入行 */
.sample-row {
  display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
}
.sample-row .idx { width: 26px; text-align: right; color: var(--muted); font-size: 14px; flex-shrink: 0; }
.sample-row input {
  flex: 1; min-width: 0; font-size: 18px; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: 10px; text-align: right;
  font-variant-numeric: tabular-nums; font-family: inherit;
}
.sample-row input:focus { outline: 2px solid var(--primary); border-color: transparent; }
.sample-row input.invalid { outline: 2px solid var(--bad); }
.sample-row .ml {
  width: 92px; text-align: right; flex-shrink: 0;
  font-variant-numeric: tabular-nums; font-size: 15px;
}
.sample-row .ml.low { color: var(--bad); font-weight: 700; }
.sample-row .del {
  flex-shrink: 0; border: none; background: none; color: var(--muted);
  font-size: 18px; padding: 4px 6px;
}

/* 统计面板 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 10px; }
.stat { text-align: center; background: var(--bg); border-radius: 10px; padding: 8px 2px; }
.stat .v { font-size: 17px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat .k { font-size: 12px; color: var(--muted); }

.badge {
  display: inline-block; border-radius: 8px; padding: 3px 10px;
  font-size: 14px; font-weight: 600;
}
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.verdict { font-size: 20px; padding: 6px 18px; }
.judge-line { margin-top: 6px; font-size: 14px; }

.btn-row { display: flex; gap: 10px; margin-top: 4px; }
.btn-row button { flex: 1; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: #263241; color: #fff; padding: 10px 18px; border-radius: 10px;
  font-size: 14px; max-width: 92%; text-align: center; z-index: 10;
}

/* 数据记录页 */
.record-item { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin-bottom: 10px; }
.record-item .head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.record-item .rname { font-size: 15px; font-weight: 600; word-break: break-all; }
.record-item .meta { font-size: 13px; color: var(--muted); margin-top: 2px; }
.record-item .ops { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.record-detail { margin-top: 10px; border-top: 1px dashed var(--line); padding-top: 10px; font-size: 14px; }
.record-detail table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.record-detail th, .record-detail td {
  border: 1px solid var(--line); padding: 4px 8px; text-align: right;
  font-variant-numeric: tabular-nums; font-size: 13px;
}
.record-detail th { background: var(--bg); font-weight: 600; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }