.notice-box {
  max-width: 84%;
  margin: 20px auto;
  border: 3px solid #e53935;
  border-radius: 14px;
  overflow: hidden;
  background: #f5efe6;
  box-sizing: border-box;
}

.notice-header {
  background: #e53935;
  color: #fff;
  font-weight: 700;
  text-align: center;
  padding: 12px 12px;
  font-size: clamp(18px, 4.5vw, 28px);
  line-height: 1.2;
  box-sizing: border-box;
}

.notice-body {
  text-align: center;
  padding: clamp(16px, 4vw, 30px) clamp(14px, 4vw, 24px);
  line-height: 1.9;
  font-size: clamp(14px, 3.2vw, 16px);
  color: #222;

  /* 右側が切れないように折り返しを許可 */
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;

  box-sizing: border-box;
}

@media (max-width: 480px) {
  .notice-box {
    border-width: 2px;
  }

  .notice-body {
    text-align: left;
    line-height: 1.8;
  }
}