/* 大学・学生記事下 協賛CTA */

.sponsorship-cta {
  max-width: 825px;
  margin: 32px 0 28px;
  padding: 28px 22px 24px;
  border: 1px solid #f3d9b5;
  border-radius: 12px;
  background:
    radial-gradient(circle at 4% 12%, rgba(255, 166, 41, 0.12) 0 2px, transparent 3px) 0 0 / 18px 18px,
    linear-gradient(180deg, #fffaf2 0%, #fff 100%);
  box-sizing: border-box;
}

.sponsorship-cta__inner {
  text-align: center;
}

.sponsorship-cta__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 8px;
  color: #d88a14;
  font-size: 14px;
  font-weight: 700;
}

.sponsorship-cta__eyebrow::before,
.sponsorship-cta__eyebrow::after {
  content: "";
  display: block;
  width: 28px;
  height: 2px;
  background: #f2a22a;
}

.sponsorship-cta__title {
  margin: 0;
  color: #222;
  font-size: 25px;
  line-height: 1.45;
  font-weight: 800;
}

.sponsorship-cta__lead {
  margin: 4px 0 20px;
  color: #555;
  font-size: 14px;
  line-height: 1.6;
  font-weight: 600;
}

.sponsorship-cta__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
}

.sponsorship-cta__card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: 10px;
  background: #fff;
  border: 1px solid #ececec;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
  height: 100%;
  color: inherit;
  text-decoration: none;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.sponsorship-cta__card:hover {
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

.sponsorship-cta__image {
  aspect-ratio: 3 / 2;
  width: 100%;
  min-height: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-color: #f5f5f5;
}

.sponsorship-cta__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 12px 12px 14px;
  text-align: center;
}

.sponsorship-cta__body h3 {
  margin: 0 0 6px;
  font-size: 18px;
  line-height: 1.35;
  font-weight: 800;
}

.sponsorship-cta__card--open h3 {
  color: #ff8a00;
}

.sponsorship-cta__card--ad h3 {
  color: #00a651;
}

.sponsorship-cta__card--goods h3 {
  color: #0d61c8;
}

.sponsorship-cta__body p {
  margin: 0;
  color: #333;
  font-size: 12px;
  line-height: 1.55;
  font-weight: 600;
  flex: 1;
  text-align: center;
}

.sponsorship-cta__button {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 34px;
  margin-top: 12px;
  border-radius: 999px;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.sponsorship-cta__button span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  color: inherit;
  font-size: 16px;
  line-height: 1;
}

.sponsorship-cta__card--open .sponsorship-cta__button {
  background: #ff8a00;
}

.sponsorship-cta__card--ad .sponsorship-cta__button {
  background: #00a651;
}

.sponsorship-cta__card--goods .sponsorship-cta__button {
  background: #0d61c8;
}

.sponsorship-cta__card--open .sponsorship-cta__button span {
  color: #ff8a00;
}

.sponsorship-cta__card--ad .sponsorship-cta__button span {
  color: #00a651;
}

.sponsorship-cta__card--goods .sponsorship-cta__button span {
  color: #0d61c8;
}

.sponsorship-cta__button:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .sponsorship-cta {
    margin: 28px 20px 24px;
    padding: 24px 12px 18px;
  }

  .sponsorship-cta__title {
    font-size: 23px;
  }

  .sponsorship-cta__cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .sponsorship-cta__image {
    aspect-ratio: 3 / 2;
    min-height: 0;
  }

  .sponsorship-cta__body {
    padding: 10px 6px 10px;
  }

  .sponsorship-cta__body h3 {
    font-size: 15px;
  }

  .sponsorship-cta__body p {
    font-size: 11px;
    line-height: 1.45;
  }

  .sponsorship-cta__button {
    gap: 5px;
    min-height: 31px;
    font-size: 11px;
  }

  .sponsorship-cta__button span {
    width: 16px;
    height: 16px;
    font-size: 14px;
  }
}

@media (max-width: 520px) {
  .sponsorship-cta__cards {
    gap: 6px;
  }

  .sponsorship-cta__image {
    aspect-ratio: 3 / 2;
    min-height: 0;
  }

  .sponsorship-cta__body {
    padding: 8px 5px 9px;
  }

  .sponsorship-cta__body h3 {
    font-size: 14px;
  }

  .sponsorship-cta__body p {
    font-size: 10px;
  }

  .sponsorship-cta__button {
    font-size: 10px;
  }

  .sponsorship-cta__button span {
    width: 15px;
    height: 15px;
  }
}