:root {
  color-scheme: light;
  --bg: #f3f6fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #d1d5db;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --danger: #b91c1c;
  --ok: #065f46;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

body {
  min-height: 100dvh;
}

.page {
  width: min(100%, 560px);
  margin: 0 auto;
  padding: max(16px, env(safe-area-inset-top)) 14px max(20px, env(safe-area-inset-bottom));
}

.card {
  background: var(--card);
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: clamp(14px, 3.5vw, 22px);
  box-shadow: 0 8px 24px rgba(2, 6, 23, 0.06);
}

.title {
  margin: 0;
  font-size: clamp(1.2rem, 2.8vw, 1.5rem);
}

.subtitle {
  margin: 8px 0 18px;
  color: var(--muted);
  font-size: clamp(0.9rem, 2.6vw, 1rem);
  line-height: 1.5;
}

.form {
  display: grid;
  gap: 12px;
}

.field {
  display: grid;
  gap: 6px;
}

.field span {
  font-size: 0.95rem;
}

.field input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 1rem;
  outline: none;
  background: #fff;
}

.field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.actions {
  margin-top: 4px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

button {
  min-height: 44px;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  background: var(--primary);
}

button:hover {
  background: var(--primary-strong);
}

button.secondary {
  color: #111827;
  background: #e5e7eb;
}

button.secondary:hover {
  background: #d1d5db;
}

.message {
  min-height: 1.5em;
  margin-top: 12px;
  font-size: 0.95rem;
}

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

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

.result {
  margin-top: 14px;
  border-top: 1px dashed #d1d5db;
  padding-top: 12px;
}

.result h2 {
  margin: 0 0 8px;
  font-size: 1.02rem;
}

.result ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.result li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 10px;
}

.result li span {
  color: #374151;
}

.result-actions {
  margin-top: 10px;
}

.result-actions button {
  width: 100%;
}

@media (max-width: 380px) {
  .actions {
    grid-template-columns: 1fr;
  }
}