:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --ink: #14212b;
  --muted: #5d6c79;
  --accent: #0f766e;
  --accent-soft: #dff8f2;
  --danger: #b91c1c;
  --ok: #166534;
  --line: #d5dde8;
  --radius: 14px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at top right, #e7f8f3 0, var(--bg) 38%);
  color: var(--ink);
}
.wrap { width: min(980px, 94vw); margin: 0 auto; }
.topbar {
  position: sticky; top: 0; z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(8px);
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; padding: .8rem 0; gap: .8rem; }
.brand { color: var(--ink); text-decoration: none; font-weight: 700; }
.nav { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
.nav a, .linklike {
  color: var(--accent); text-decoration: none; background: none; border: 0; padding: 0; cursor: pointer;
}
main { padding: 1rem 0 2rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  margin: .9rem 0;
}
.narrow { max-width: 520px; margin-inline: auto; }
.hero h1 { margin-top: .1rem; font-size: clamp(1.35rem, 5vw, 2rem); }
.actions { display: flex; gap: .7rem; flex-wrap: wrap; }

.btn {
  appearance: none;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  padding: .68rem 1rem;
  font-weight: 600;
  cursor: pointer;
}
.btn-ghost { background: var(--accent-soft); color: var(--accent); }
.form-grid { display: grid; gap: .85rem; }
label { display: grid; gap: .4rem; font-size: .95rem; color: var(--muted); }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  padding: .62rem .72rem;
  font: inherit;
}
textarea { resize: vertical; min-height: 100px; }
.qa { border: 1px solid var(--line); padding: .8rem; border-radius: 10px; background: #fbfdff; }
.quick-nav {
  display: flex;
  gap: .45rem;
  overflow: auto;
  padding: .35rem 0 .15rem;
  margin-bottom: .65rem;
}
.quick-nav a {
  min-width: 2rem;
  height: 2rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--accent);
  background: #fff;
}
.tag {
  display: inline-block;
  width: fit-content;
  background: #e9f3ff;
  color: #1d4ed8;
  padding: .18rem .52rem;
  border-radius: 999px;
  font-size: .78rem;
}
.alert { border-radius: 10px; padding: .72rem .9rem; margin: .7rem 0; }
.alert-error { background: #fee2e2; color: var(--danger); }
.alert-ok { background: #dcfce7; color: var(--ok); }

.table-scroll { overflow: auto; }
table { width: 100%; border-collapse: collapse; min-width: 660px; }
th, td { text-align: left; border-bottom: 1px solid var(--line); padding: .58rem .4rem; vertical-align: top; }

.grid-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .65rem; }
.metric { border: 1px solid var(--line); border-radius: 10px; padding: .75rem; background: #f8fcff; }
.metric h3 { margin: 0; font-size: .9rem; color: var(--muted); }
.metric p { margin: .35rem 0 0; font-size: 1.2rem; font-weight: 700; color: var(--accent); }
.report-html h2 { margin-top: 1.1rem; margin-bottom: .35rem; font-size: 1.08rem; }

.inline { display: inline; }

@media (max-width: 760px) {
  .topbar-inner { flex-direction: column; align-items: flex-start; }
  .grid-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card { padding: .85rem; }
}

@media (max-width: 480px) {
  .wrap { width: 95vw; }
  .grid-metrics { grid-template-columns: 1fr; }
  .btn { width: 100%; }
}