:root {
  --blue: #1f6aa5;
  --blue-d: #154e7a;
  --bg: #eef6fb;
  --card: #fff;
  --danger: #b42318;
  --ok: #067647;
  --line: #d7e6f2;
  --text: #1a2b3c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  background: linear-gradient(#cfe8f8, var(--bg) 180px);
  color: var(--text);
}
.wrap { max-width: 640px; margin: 0 auto; padding: 20px 16px 48px; }
.hero {
  background: var(--blue);
  color: #fff;
  border-radius: 16px;
  padding: 22px 20px;
  margin-bottom: 16px;
}
.hero h1 { font-size: 18px; line-height: 1.45; margin: 0 0 8px; font-weight: 600; }
.hero p { margin: 0; font-size: 13px; opacity: .92; }
.card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 12px;
  border: 1px solid var(--line);
}
label.q { display: block; font-weight: 600; margin-bottom: 10px; font-size: 15px; }
.req::before { content: "* "; color: #d92d20; }
input[type=text], input[type=tel], input[type=date], input[type=password], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #c9d8e6;
  border-radius: 10px;
  font-size: 15px;
}
input[type=date] {
  cursor: pointer;
  min-height: 44px;
  position: relative;
  background: #fff;
}
input[type=date]::-webkit-calendar-picker-indicator {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  cursor: pointer;
  opacity: 0;
}
textarea { min-height: 90px; resize: vertical; }
.opts { display: flex; flex-direction: column; gap: 8px; }
.opt {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f8fbfe;
}
.opt input { margin-top: 3px; }
.hint { font-size: 13px; color: #5b7086; margin: -4px 0 10px; }
.hint:empty { display: none; }
.scale { display: flex; justify-content: space-between; gap: 6px; }
.scale label {
  flex: 1; text-align: center; padding: 10px 0;
  border: 1px solid var(--line); border-radius: 10px; background: #f8fbfe; font-size: 14px;
}
.scale input { display: none; }
.scale label:has(input:checked) { background: var(--blue); color: #fff; border-color: var(--blue); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
@media (max-width: 520px) { .row { grid-template-columns: 1fr; } }
.btn {
  width: 100%; border: 0; background: var(--blue); color: #fff;
  padding: 14px; border-radius: 12px; font-size: 16px; font-weight: 600;
}
.btn:disabled { opacity: .55; }
.btn-ghost { background: #fff; color: var(--blue); border: 1px solid var(--blue); margin-top: 8px; }
.result { text-align: center; padding: 28px 12px; }
.result h2 { margin: 0 0 10px; }
.abn { color: var(--danger); }
.ok { color: var(--ok); }
.list { text-align: left; background: #fff6f6; border-radius: 10px; padding: 12px 16px; }
.age-badge {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #e8f4fc;
  color: var(--blue-d);
  font-weight: 600;
  font-size: 14px;
}
.err { color: var(--danger); font-size: 13px; margin-top: 8px; }
.foot { text-align: center; font-size: 12px; color: #7a8b9c; margin-top: 20px; }
.foot a { color: var(--blue); }