/* ----- 残土中継所 導入 ----- */
.section-zando-intro {
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-200);
  overflow: hidden;
}

.zando-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.zando-intro-text {
  padding: 4rem 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.section-zando-intro .section-label {
  color: var(--gray-600);
}

.section-zando-intro .section-title {
  color: var(--black);
}

.zando-intro-lead {
  font-size: 0.88rem;
  color: var(--black);
  line-height: 2.2;
}

.zando-intro-image {
  background-color: var(--gray-800);
}

.zando-intro-image .photo-frame {
  width: 100%;
  height: 100%;
  min-height: 360px;
  border: none;
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .zando-intro-grid {
    grid-template-columns: 1fr;
  }

  .zando-intro-text {
    padding: 5rem 1.5rem;
  }

  .zando-intro-image .photo-frame {
    min-height: 240px;
  }
}


/* ----- 情報タブ ----- */
.section-info-tabs {
  padding: 4rem 4rem;
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-200);
}

.info-tab-nav {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.info-tab-btn {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.6rem 1.4rem;
  border: 1px solid var(--gray-200);
  background-color: var(--white);
  color: var(--gray-600);
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

.info-tab-btn.active {
  background-color: var(--gray-600);
  border-color: var(--gray-600);
  color: var(--white);
}

.info-tab-panel {
  display: none;
}

.info-tab-panel.active {
  display: block;
}

/* 料金 */
.info-price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--gray-200);
  border: 1px solid var(--gray-200);
  margin-bottom: 1.2rem;
}

.info-price-card {
  background-color: var(--gray-50);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.info-price-type {
  font-size: 0.78rem;
  color: var(--gray-600);
}

.info-price-amount {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--gray-900);
}

.info-payment-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background-color: var(--gray-200);
  border: 1px solid var(--gray-200);
  margin-top: 1.5rem;
}

.info-payment-card {
  background-color: var(--white);
  padding: 1.4rem 1.6rem;
}

.info-payment-title {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--gray-900);
  margin-bottom: 0.4rem;
}

.info-payment-text {
  font-size: 0.8rem;
  color: var(--gray-600);
}

/* こんな現場に */
.info-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background-color: var(--gray-200);
  border: 1px solid var(--gray-200);
}

.info-cases-card {
  background-color: var(--white);
  padding: 1.5rem 1.8rem;
  font-size: 0.85rem;
  color: var(--gray-800);
  line-height: 1.7;
}

/* ご利用の流れ */
.info-flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background-color: var(--gray-200);
  border: 1px solid var(--gray-200);
}

.info-flow-card {
  background-color: var(--white);
  padding: 1.5rem;
}

.info-flow-step {
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  color: var(--gray-400);
}

.info-flow-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--gray-900);
  margin: 0.5rem 0 0.3rem;
}

.info-flow-text {
  font-size: 0.78rem;
  color: var(--gray-600);
}

/* 受入可能な残土 */
.info-soil-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background-color: var(--gray-200);
  border: 1px solid var(--gray-200);
  margin-bottom: 1rem;
}

.info-soil-card {
  background-color: var(--white);
  padding: 1.5rem 1.8rem;
}

.info-soil-card--accept .info-soil-title {
  color: #0F6E56;
}

.info-soil-card--reject .info-soil-title {
  color: #A32D2D;
}

.info-soil-title {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.info-soil-text {
  font-size: 0.85rem;
  color: var(--gray-600);
  line-height: 1.8;
}

.info-note {
  font-size: 0.75rem;
  color: var(--gray-400);
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .section-info-tabs {
    padding: 3rem 1.5rem;
  }

  .info-price-grid,
  .info-cases-grid,
  .info-flow-grid,
  .info-soil-grid,
  .info-payment-grid {
    grid-template-columns: 1fr;
  }
}

/* ----- To Top Button ----- */
.to-top {
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  z-index: 200;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--gray-900);
  color: var(--white);
  border: 1px solid var(--gray-600);
  border-radius: 0;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background-color 0.2s;
}

.to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover {
  background-color: var(--gray-800);
}

/* ----- Fade Page ----- */
.fade-page {
  opacity: 0;
  animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .section-zando-photo,
  .section-zando-about,
  .section-zando-price,
  .section-zando-cases,
  .section-zando-flow,
  .section-zando-soil,
  .section-zando-access,
  .section-zando-contact {
    padding: 5rem 1.5rem;
  }

  .zando-price-grid {
    grid-template-columns: 1fr;
  }

  .zando-cases-grid {
    grid-template-columns: 1fr;
  }

  .zando-flow-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .zando-flow-card:not(:last-child)::after {
    display: none;
  }

  .zando-soil-grid {
    grid-template-columns: 1fr;
  }

  .zando-access-grid {
    grid-template-columns: 1fr;
  }

  .zando-tel {
    font-size: 1.5rem;
  }

  .page-nav {
    grid-template-columns: 1fr;
  }

  .page-nav-item {
    padding: 2rem 1.5rem;
  }
}

/* ----- 枠ぴったり画像 ----- */
.frame-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* ----- ストックヤード登録のメリット ----- */
.section-stockyard-merit {
  padding: 4rem 4rem;
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-200);
}

.merit-photo-wrap {
  position: relative;
  width: 100%;
  max-width: 680px;
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  background-color: var(--gray-200);
  border: 1px dashed var(--gray-400);
  overflow: hidden;
}

.merit-photo-wrap .frame-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.merit-photo-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--gray-400);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.merit-photo-wrap .frame-img + .merit-photo-placeholder {
  display: none;
}

/* ----- Responsive ----- */
@media (max-width: 768px) {
  .section-stockyard-merit {
    padding: 3rem 1.5rem;
  }
}

/* ===== スマホ対応追加分 ===== */
@media (max-width: 768px) {
  .section-zando-intro {
    padding: 0;
  }
  .zando-intro-grid {
    grid-template-columns: 1fr;
  }
  .zando-intro-text {
    padding: 3rem 1.5rem;
  }
  .zando-intro-image .frame-img {
    width: 100%;
    height: 240px;
    display: block;
  }

  .section-info-tabs {
    padding: 3rem 1.5rem;
  }
  .info-tab-nav {
    gap: 0.4rem;
  }
  .info-tab-btn {
    font-size: 0.72rem;
    padding: 0.5rem 0.9rem;
  }
  .info-price-grid {
    grid-template-columns: 1fr;
  }
  .info-cases-grid {
    grid-template-columns: 1fr;
  }
  .info-flow-grid {
    grid-template-columns: 1fr 1fr;
  }
  .info-soil-grid {
    grid-template-columns: 1fr;
  }

  .section-stockyard-merit {
    padding: 3rem 1.5rem;
  }
  .stockyard-merit-image {
    width: 100% !important;
  }

  .cert-link {
    padding: 1rem 1.2rem;
    gap: 0.8rem;
  }

  .cta-band {
    padding: 3rem 1.5rem;
  }
}