* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: system-ui, sans-serif; background: #f5f5f5; color: #333; line-height: 1.6; }
.container { max-width: 720px; margin: 0 auto; padding: 2rem 1rem; }
h1 { text-align: center; margin-bottom: 1.5rem; font-size: 1.5rem; }
.notice {
  background: #fff8e1; border: 1px solid #ffe082; border-radius: 6px;
  padding: 0.6rem 1rem; margin-bottom: 1.5rem; font-size: 0.85rem; color: #795548;
  text-align: center;
}
.version-switch { display: flex; justify-content: center; gap: 0.5rem; margin-bottom: 2rem; }
.version-switch button {
  padding: 0.5rem 1.5rem; border: 2px solid #4a90d9; background: #fff;
  color: #4a90d9; border-radius: 6px; cursor: pointer; font-size: 0.95rem; transition: all 0.2s;
}
.version-switch button.active { background: #4a90d9; color: #fff; }
.question {
  background: #fff; border-radius: 8px; padding: 1.25rem 1.5rem;
  margin-bottom: 1rem; box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.question-header { display: flex; align-items: baseline; gap: 0.5rem; margin-bottom: 0.5rem; }
.question-num { font-weight: 700; color: #4a90d9; white-space: nowrap; }
.question-title { flex: 1; }
.required-mark { color: #e74c3c; margin-left: 0.25rem; }
.question-prompt { color: #666; font-size: 0.85rem; margin-bottom: 0.75rem; white-space: pre-wrap; }
.options { display: flex; flex-direction: column; gap: 0.5rem; }
.option-label { display: flex; align-items: flex-start; gap: 0.5rem; cursor: pointer; padding: 0.25rem 0; }
.option-label input { margin-top: 0.35rem; flex-shrink: 0; }
.additional-container {
  display: flex; align-items: center; gap: 0.25rem; margin-left: 1.5rem; margin-top: 0.25rem;
}
.additional-input {
  flex: 1; padding: 0.5rem;
  border: 1px solid #ddd; border-radius: 4px; font-size: 0.9rem;
}
.additional-input::placeholder { color: #aaa; }
.blank-inputs { display: flex; flex-direction: column; gap: 0.5rem; }
.blank-input { padding: 0.5rem; border: 1px solid #ddd; border-radius: 4px; font-size: 0.95rem; }
.blank-input.default-value { color: #999; }
textarea.blank-input, textarea.text-input { resize: vertical; min-height: 80px; }
.text-input { width: 100%; padding: 0.5rem; border: 1px solid #ddd; border-radius: 4px; font-size: 0.95rem; }
.length-hint { font-size: 0.8rem; color: #999; margin-top: 0.25rem; }
.loading { text-align: center; color: #999; padding: 2rem; }