.ai-campaign {
  --campaign-red: #c11c1f;
  --campaign-red-dark: #79080b;
  --campaign-navy: #202c32;
  --campaign-gold: #f4d58a;
  position: relative;
  overflow: hidden;
  padding: 56px 20px;
  background:
    radial-gradient(circle at 15% 0%, rgba(244, 213, 138, 0.24), transparent 320px),
    linear-gradient(135deg, #981014 0%, var(--campaign-red) 48%, #7c090c 100%);
  color: #fff;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
}

.ai-campaign::before,
.ai-campaign::after {
  position: absolute;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(244, 213, 138, 0.24);
  content: "";
  transform: rotate(45deg);
}

.ai-campaign::before {
  top: -200px;
  right: -70px;
}

.ai-campaign::after {
  bottom: -220px;
  left: -70px;
}

.ai-campaign__frame {
  position: relative;
  z-index: 1;
  width: min(1080px, 100%);
  margin: 0 auto;
}

.ai-campaign__heading {
  text-align: center;
}

.ai-campaign__eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 0;
  color: var(--campaign-gold);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.ai-campaign__eyebrow::before,
.ai-campaign__eyebrow::after {
  width: 32px;
  height: 1px;
  background: currentColor;
  content: "";
}

.ai-campaign__title {
  margin: 12px 0 0;
  font-weight: 900;
  line-height: 1.25;
}

.ai-campaign__title-limit,
.ai-campaign__title-main {
  display: block;
}

.ai-campaign__title-limit {
  font-size: 24px;
}

.ai-campaign__title-number {
  display: inline-block;
  margin: 0 0.2em;
  color: var(--campaign-gold);
  font-family: Arial, sans-serif;
  font-size: 1.5em;
  line-height: 1;
}

.ai-campaign__title-main {
  margin-top: 8px;
  font-size: 28px;
}

.ai-campaign__lead {
  margin: 16px 0 0;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.8;
}

.ai-campaign__tiers {
  display: grid;
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.ai-campaign__tier {
  position: relative;
  display: grid;
  grid-template-columns: minmax(95px, 1fr) minmax(120px, 1.3fr) auto;
  align-items: center;
  min-height: 100px;
  padding: 16px;
  border: 1px solid rgba(244, 213, 138, 0.55);
  border-radius: 10px;
  background: #fff;
  color: #111;
  box-shadow: 0 12px 30px rgba(55, 0, 2, 0.22);
}

.ai-campaign__tier--featured {
  border: 3px solid var(--campaign-gold);
  background: linear-gradient(135deg, #fff 0%, #fff8e6 100%);
}

.ai-campaign__best {
  position: absolute;
  top: -14px;
  right: 12px;
  padding: 5px 12px;
  border-radius: 990px;
  background: var(--campaign-navy);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.ai-campaign__pages,
.ai-campaign__rate,
.ai-campaign__off {
  margin: 0;
}

.ai-campaign__pages {
  padding-right: 12px;
  font-size: 16px;
  font-weight: 900;
}

.ai-campaign__rate {
  padding: 0 12px;
  border-right: 1px solid #ddd;
  border-left: 1px solid #ddd;
  text-align: center;
}

.ai-campaign__rate-prefix {
  display: block;
  color: #555;
  font-size: 11px;
  font-weight: 700;
}

.ai-campaign__rate strong {
  color: var(--campaign-red);
  font-family: Arial, sans-serif;
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
}

.ai-campaign__rate strong span {
  margin-left: 2px;
  font-size: 0.48em;
}

.ai-campaign__off {
  min-width: 75px;
  color: var(--campaign-red);
  font-size: 16px;
  font-weight: 900;
  text-align: right;
}

.ai-campaign__footer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  margin-top: 24px;
}

.ai-campaign__notes {
  font-size: 12px;
  font-weight: 500;
  line-height: 1.8;
}

.ai-campaign__notes p {
  margin: 0;
}

.ai-campaign__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: min(340px, 100%);
  min-height: 60px;
  padding: 12px 24px;
  border: 2px solid #fff;
  border-radius: 990px;
  background: #fff;
  color: var(--campaign-red);
  font-size: 16px;
  font-weight: 900;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s, transform 0.2s;
}

.ai-campaign__cta:hover,
.ai-campaign__cta:focus-visible {
  background: var(--campaign-navy);
  color: #fff;
  transform: translateY(-2px);
}

.ai-campaign__cta-arrow {
  width: 10px;
  height: 10px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  transform: rotate(45deg);
}

.ai-campaign--price {
  margin-top: 0;
}

.price-ai-detail-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  width: calc(100% - 40px);
  max-width: 360px;
  min-height: 54px;
  margin: -10px auto 24px;
  padding: 10px 22px;
  border: 2px solid #c11c1f;
  border-radius: 999px;
  background: #fff;
  color: #c11c1f;
  font-size: 15px;
  font-weight: 900;
  line-height: 1.4;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s, transform 0.2s;
}

.price-ai-detail-link::after {
  width: 9px;
  height: 9px;
  border-top: 2px solid currentColor;
  border-right: 2px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.price-ai-detail-link:hover,
.price-ai-detail-link:focus-visible {
  background: #c11c1f;
  color: #fff;
  transform: translateY(-2px);
}

@media (min-width: 768px), print {
  .ai-campaign {
    padding: 80px 40px;
  }

  .ai-campaign__title-limit {
    font-size: 32px;
  }

  .ai-campaign__title-main {
    font-size: 44px;
  }

  .ai-campaign__lead {
    font-size: 16px;
  }

  .ai-campaign__tiers {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 40px;
  }

  .ai-campaign__tier {
    display: flex;
    min-height: 220px;
    flex-direction: column;
    justify-content: center;
    padding: 24px 20px;
  }

  .ai-campaign__pages {
    padding: 0;
    font-size: 20px;
  }

  .ai-campaign__rate {
    width: 100%;
    margin-top: 16px;
    padding: 0;
    border: 0;
  }

  .ai-campaign__rate-prefix {
    font-size: 13px;
  }

  .ai-campaign__rate strong {
    font-size: 56px;
  }

  .ai-campaign__off {
    min-width: 0;
    margin-top: 10px;
    font-size: 20px;
    text-align: center;
  }

  .ai-campaign__best {
    top: -15px;
    right: 50%;
    padding: 6px 16px;
    font-size: 12px;
    transform: translateX(50%);
  }

  .ai-campaign__footer {
    flex-direction: row;
    justify-content: space-between;
    margin-top: 32px;
  }

  .ai-campaign__notes {
    font-size: 13px;
  }
}

@media (max-width: 374px) {
  .ai-campaign__tier {
    grid-template-columns: 1fr 1.1fr;
  }

  .ai-campaign__off {
    grid-column: 1 / -1;
    margin-top: 8px;
    text-align: center;
  }
}

@media (max-width: 767px) {
  .price-ai-detail-link {
    width: calc(100% - 28px);
    min-height: 50px;
    margin: -8px auto 20px;
    padding: 9px 16px;
    font-size: 14px;
  }
}