:root {
  --bg: #f7f2e8;
  --ink: #2d2319;
  --card: #fff9ef;
  --line: #e9d8c3;
  --brand: #b93700;
  --brand-soft: #ffd9c1;
  --ok: #0f7f43;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 0 0, #ffe8bf, transparent 35%),
    radial-gradient(circle at 100% 0, #ffd9d9, transparent 28%),
    var(--bg);
}

.container {
  width: min(860px, 92vw);
  margin: 18px auto 36px;
  display: grid;
  gap: 14px;
}

.hero {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  background: linear-gradient(130deg, #ffefd2, #ffe3d5);
}

.hero h1 {
  margin: 0 0 6px;
}

.hero p {
  margin: 0;
}

.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  background: var(--card);
}

h2 {
  margin-top: 0;
  font-size: 18px;
}

form {
  display: grid;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
}

input {
  border: 1px solid #d8c7b1;
  border-radius: 8px;
  padding: 10px;
  font-size: 14px;
}

button {
  border: none;
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  cursor: pointer;
  background: var(--brand);
  color: #fff;
}

button:hover {
  filter: brightness(1.04);
}

.choices {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.pick {
  background: var(--brand-soft);
  color: #7a2700;
  border: 1px solid #f4c3a3;
}

.muted {
  color: #735f4a;
}

.hidden {
  display: none;
}

.result-ok {
  color: var(--ok);
  font-weight: 700;
}

@media (max-width: 640px) {
  .choices {
    flex-direction: column;
  }
}