/* ========================================
   Contact Section (Shared Component)
   ======================================== */
.contact-section {
  position: relative;
  background-color: #1a3a4a;
}

/* 背景画像 (Figma: opacity 0.75) */
.contact-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('../img/marine/contact-bg.jpg');
  background-size: cover;
  background-position: center bottom;
  opacity: 0.75;
  z-index: 0;
}

/* 黒オーバーレイ (Figma: opacity 0.35) */
.contact-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.35);
  z-index: 1;
}

.contact-section-overlay {
  position: relative;
  z-index: 2;
  padding: 80px 20px 90px;
  text-align: center;
}

.contact-section-title {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 400;
  letter-spacing: 3px;
  line-height: 54px;
  color: #fff;
  margin-bottom: 10px;
}

.contact-section-subtitle {
  font-family: var(--font-serif-jp);
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 1.35px;
  line-height: 21.6px;
  color: #fff;
  margin-bottom: 45px;
}

.contact-section-buttons {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.contact-section-buttons--one {
  grid-template-columns: 1fr;
  max-width: 450px;
}

.contact-section-item {
  text-align: center;
}

.contact-section-item-label {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: 1.125px;
  line-height: 32px;
  color: #fff;
  margin-bottom: 15px;
}

.contact-section-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 450px;
  height: 93px;
  margin: 0 auto;
  font-size: 18px;
  font-weight: 400;
  text-decoration: none;
  text-align: center;
  letter-spacing: 1.35px;
  transition: opacity 0.3s;
}

.contact-section-btn:hover {
  opacity: 0.9;
}

.contact-section-btn-gold {
  background-color: #BFAB67;
  color: #fff;
}

.contact-section-btn-teal {
  background-color: #2CB9B5;
  color: #fff;
}

/* SP only break */
.sp-only {
  display: none;
}

/* ========================================
   Responsive - Mobile (max-width: 768px)
   ======================================== */
@media (max-width: 768px) {
  .contact-section::before {
    background-image: url('../img/marine/contact-bg-sp.jpg');
    background-size: 100% auto;
    background-position: center top;
  }

  .contact-section-overlay {
    padding: 60px 20px 60px;
  }

  .contact-section-title {
    font-size: 32px;
    letter-spacing: 2.4px;
    line-height: 50px;
    margin-bottom: 8px;
  }

  .contact-section-subtitle {
    font-size: 14px;
    letter-spacing: 1.05px;
    line-height: 16.8px;
    margin-bottom: 32px;
  }

  .contact-section-buttons {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-section-item-label {
    font-size: 14px;
    letter-spacing: 1.05px;
    line-height: 24px;
    margin-bottom: 25px;
  }

  .sp-only {
    display: inline;
  }

  .contact-section-btn {
    width: 100%;
    max-width: 334px;
    height: 67px;
    font-size: 14px;
    letter-spacing: 1.05px;
  }
}

/* ========================================
   Responsive - Small Mobile (max-width: 480px)
   ======================================== */
/* 480px uses same values as 768px (Figma SP is 375px) */