.naona-card {
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  margin: 12px 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform .2s ease;
}
.naona-card:hover {
  transform: translateY(-2px);
}
.naona-header {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: #666;
  margin-bottom: 6px;
}
.naona-content {
  font-size: 15px;
  line-height: 1.6;
}

/* コメントUI */
.naona-comments-block {
  margin-top: 12px;
  padding-top: 8px;
  border-top: 1px solid #eee;
}
.naona-comments-toggle {
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid #ddd;
  background: #fafafa;
  cursor: pointer;
}
.naona-comments-area {
  margin-top: 8px;
}
.naona-comments-list {
  margin-bottom: 8px;
}
.naona-comment-item {
  font-size: 13px;
  padding: 4px 0;
  border-bottom: 1px solid #f3f3f3;
}
.naona-comment-form {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.naona-comment-text {
  width: 100%;
  font-size: 13px;
}
.naona-comment-submit {
  align-self: flex-end;
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 999px;
  border: none;
  background: #0073aa;
  color: #fff;
  cursor: pointer;
}
.naona-comment-message {
  margin-top: 4px;
  font-size: 12px;
  color: #666;
}