:root {
  color-scheme: light;
  --ink: #1f2933;
  --muted: #5f6c7b;
  --line: #d8dee6;
  --paper: #f8faf7;
  --panel: #ffffff;
  --accent: #146c5f;
  --accent-2: #9c4f1b;
  --warn: #fff3db;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #edf4ef 0%, var(--paper) 42%);
}

.app { min-height: 100vh; padding: 28px 16px; }
.workspace { width: min(1120px, 100%); margin: 0 auto; }
.masthead { margin-bottom: 18px; }
.eyebrow { margin: 0 0 8px; color: var(--accent); font-weight: 700; }
h1 { margin: 0 0 10px; font-size: clamp(28px, 4vw, 46px); line-height: 1.1; }
h2 { margin: 0; font-size: 20px; }
.masthead p:last-child { margin: 0; color: var(--muted); }

.panel,
.report-panel,
.summary {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 40px rgba(31, 41, 51, 0.08);
}

.panel { padding: 18px; }
.notice {
  padding: 10px 12px;
  margin-bottom: 14px;
  border-left: 4px solid var(--accent-2);
  background: var(--warn);
  color: #6f3b12;
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr));
  gap: 12px;
}
label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; }
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  font: inherit;
  color: var(--ink);
  background: #fbfcfd;
}
button {
  margin-top: 14px;
  border: 0;
  border-radius: 6px;
  padding: 11px 16px;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  cursor: pointer;
}
button:hover { filter: brightness(0.96); }

.summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 16px 0;
  overflow: hidden;
}
.summary-card { padding: 16px; background: #fff; }
.summary-card span { display: block; color: var(--muted); font-size: 12px; }
.summary-card strong { display: block; margin-top: 6px; font-size: 18px; }

.report-panel { padding: 0; overflow: hidden; }
.report-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.report-head button { margin: 0; background: #394b59; }
pre {
  margin: 0;
  padding: 18px;
  white-space: pre-wrap;
  line-height: 1.65;
  overflow: auto;
  background: #fbfcfd;
  min-height: 360px;
}

@media (max-width: 760px) {
  .grid, .summary { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .app { padding: 18px 10px; }
  .grid, .summary { grid-template-columns: 1fr; }
  .report-head { align-items: stretch; flex-direction: column; }
}