.intro-plan {
  background: #FFFFFF;
  color: #4f5962;
  font-family: "Noto Sans JP", "Yu Gothic", "Meiryo", sans-serif;
}
.intro-plan__space { padding: 44px 30px 60px; }
.intro-plan__card {
  position: relative;
  box-sizing: border-box;
  max-width: 400px;
  margin: 0 auto;
  padding: 25px 26px 18px;
  border-radius: 20px;
  background: #F3E7D9;
}
.intro-plan__badge {
  position: absolute;
  top: -28px;
  left: -12px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  margin: 0;
  border-radius: 50%;
  background: #C58A5B;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.intro-plan__title {
  margin: 0 0 6px;
  text-align: center;
  font-size: 20px;
  line-height: 1.5;
  font-weight: 700;
}
.intro-plan__title span {
  background: linear-gradient(transparent 75%, #C58A5B 75%);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.intro-plan__price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 7px;
  margin: 0;
  white-space: nowrap;
}
.intro-plan__duration {
  padding: 3px 7px;
  background: #FFFFFF;
  color: #C58A5B;
  font-size: 16px;
  font-weight: 700;
}
.intro-plan__amount {
  color: #C58A5B;
  font-family: Arial, sans-serif;
  font-size: 68px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.04em;
}
.intro-plan__yen { font-size: 32px; font-weight: 700; }
.intro-plan__tax { font-size: 13px; font-weight: 700; }
.intro-plan__note {
  margin: 8px 0 0;
  padding-top: 10px;
  border-top: 1px solid #C58A5B;
  font-size: 13px;
  line-height: 1.8;
}
.intro-plan__photo {
  display: block;
  width: 100%;
  height: 300px;
  object-fit: cover;
  object-position: center 25%;
}
@media (max-width: 420px) {
  .intro-plan__space { padding-right: 24px; padding-left: 24px; }
  .intro-plan__card { padding: 44px 14px 18px; }
  .intro-plan__price { gap: 5px; }
}
@media (max-width: 350px) {
  .intro-plan__card { padding-inline: 12px; }
  .intro-plan__tax { font-size: 11px; }
  .intro-plan__price {
    display: grid;
    grid-template-columns: max-content max-content;
    gap: 4px;
  }
  .intro-plan__duration { grid-column: 1 / -1; justify-self: center; }
  .intro-plan__duration { padding-inline: 5px; }
}