:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --text: #111827;
  --subtle: #6b7280;
  --primary: #2563eb;
  --danger: #dc2626;
  --success: #16a34a;
  --border: #e5e7eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 560px;
  margin: 0 auto;
  padding: 14px;
}

.card {
  background: var(--card);
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 14px;
  margin-bottom: 12px;
}

h1,
h2,
h3 {
  margin: 0 0 10px;
}

h1 {
  font-size: 20px;
}

h2 {
  font-size: 17px;
}

p {
  margin: 0 0 8px;
  color: var(--subtle);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 520px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.field label {
  font-size: 14px;
  color: #374151;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  background: #fff;
}

textarea {
  min-height: 78px;
}

.score-note {
  font-size: 13px;
  color: #4b5563;
  margin-bottom: 8px;
}

.btn {
  width: 100%;
  border: 0;
  border-radius: 10px;
  padding: 12px;
  color: #fff;
  background: var(--primary);
  font-weight: 600;
  cursor: pointer;
}

a.btn {
  display: block;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
  text-decoration: none;
}

.btn.secondary {
  margin-top: 10px;
  background: #374151;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  font-size: 14px;
  margin-top: 8px;
}

.error {
  color: var(--danger);
}

.success {
  color: var(--success);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--border);
  text-align: left;
  padding: 8px 0;
  font-size: 13px;
}

.qrcode-box {
  display: flex;
  justify-content: center;
  padding: 8px 0;
}

.qrcode-box img {
  width: 220px;
  height: 220px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.inline-check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 14px;
}

.inline-check input {
  width: 16px;
  height: 16px;
}