:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1f2937;
  --sub: #6b7280;
  --primary: #0f766e;
  --primary-hover: #115e59;
  --border: #e5e7eb;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background: linear-gradient(180deg, #eef6ff 0%, var(--bg) 45%);
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
}
.page { max-width: 1100px; margin: 0 auto; padding: 24px 16px 40px; }
.header h1 { margin: 0; font-size: 28px; }
.header p { margin: 8px 0 0; color: var(--sub); }
.card {
  margin-top: 16px; padding: 16px; border: 1px solid var(--border);
  border-radius: 14px; background: var(--card);
}
.form {
  display: grid; grid-template-columns: 1fr 150px 140px;
  gap: 12px; align-items: end;
}
label { display: grid; gap: 6px; font-size: 14px; }
input, select, button {
  height: 40px; border-radius: 10px; border: 1px solid var(--border);
  padding: 0 12px; font-size: 14px;
}
button { border: none; color: #fff; background: var(--primary); cursor: pointer; }
button:hover { background: var(--primary-hover); }
.msg { margin: 10px 0 0; color: #b91c1c; min-height: 20px; }
.summary { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.summary .item { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
.summary .label { color: var(--sub); font-size: 13px; }
.summary .value { margin-top: 6px; font-size: 22px; font-weight: 700; }
.charts { margin-top: 16px; display: grid; grid-template-columns: 1fr; gap: 12px; }
.chart { height: 320px; border: 1px solid var(--border); border-radius: 12px; background: #fff; }
.tableWrap { margin-top: 16px; }
table { width: 100%; border-collapse: collapse; }
th, td {
  border-bottom: 1px solid var(--border); padding: 10px; text-align: center; font-size: 14px;
}
.hidden { display: none; }
@media (max-width: 900px) {
  .form { grid-template-columns: 1fr; }
  .summary { grid-template-columns: 1fr 1fr; }
  .chart { height: 280px; }
}