.business-services,
.business-overview,
.business-detail,
.business-property,
.business-range,
.business-flow-section,
.business-issues,
.business-guide-link,
.business-works-link {
  position: relative;
  overflow: hidden;
}

.business-services,
.business-overview {
  padding: 96px 0 104px;
  background:
    linear-gradient(135deg, rgba(247, 244, 238, 0.96), rgba(237, 226, 207, 0.88)),
    url("../images/work_02.png") center / cover no-repeat;
  color: var(--dark-text);
}

.business-services .section-title .en,
.business-overview .section-title .en,
.business-detail .section-title .en,
.business-flow-section .section-title .en {
  color: var(--gold-dark);
}

.business-services .section-title .ja,
.business-overview .section-title .ja,
.business-detail .section-title .ja,
.business-flow-section .section-title .ja {
  color: #6c6255;
}

.service-accordion-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.72fr) minmax(0, 1.28fr);
  gap: 28px;
  align-items: start;
}

.service-accordion {
  display: grid;
  gap: 14px;
}

.service-accordion-item {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(125, 90, 45, 0.2);
  box-shadow: 0 18px 48px rgba(36, 33, 29, 0.08);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.service-accordion-item[open] {
  border-color: rgba(181, 138, 75, 0.48);
  box-shadow: 0 24px 70px rgba(36, 33, 29, 0.14);
}

.service-accordion-item summary {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 42px;
  gap: 20px;
  align-items: center;
  padding: 26px 28px;
  cursor: pointer;
  list-style: none;
}

.service-accordion-item summary::-webkit-details-marker {
  display: none;
}

.service-num {
  color: var(--gold-dark);
  font-family: "Cinzel", serif;
  font-size: 32px;
  line-height: 1;
}

.service-summary-text {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.service-summary-text strong {
  color: var(--dark-text);
  font-size: 22px;
  letter-spacing: 0.08em;
  line-height: 1.4;
}

.service-summary-text small {
  color: #5a5147;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 1.8;
}

.service-toggle {
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(125, 90, 45, 0.4);
  border-radius: 50%;
}

.service-toggle::before,
.service-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 1px;
  background: var(--gold-dark);
  transform: translate(-50%, -50%);
  transition: transform 0.25s ease;
}

.service-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.service-accordion-item[open] .service-toggle {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
}

.service-accordion-item[open] .service-toggle::before {
  background: #fff;
}

.service-accordion-item[open] .service-toggle::after {
  background: #fff;
  transform: translate(-50%, -50%) rotate(0deg);
}

.service-accordion-body {
  padding: 0 28px 30px 120px;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.28s ease, transform 0.36s ease;
}

.service-accordion-item[open] .service-accordion-body {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.06s;
}

.service-accordion-item.is-closing .service-accordion-body {
  opacity: 0;
  transform: translateY(-8px);
  transition-delay: 0s;
}

.service-accordion-body p {
  margin: 0;
  color: #5a5147;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 15px;
  line-height: 2;
}

.service-accordion-body ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
  list-style: none;
}

.service-accordion-body li {
  padding: 12px 16px;
  background: rgba(125, 90, 45, 0.08);
  border-left: 2px solid var(--gold);
  color: #40382f;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 1.7;
}

.service-support {
  background: #19130e;
  border-color: rgba(181, 138, 75, 0.38);
}

.service-support .service-num,
.service-support .service-summary-text strong {
  color: var(--gold-light);
}

.service-support .service-summary-text small,
.service-support .service-accordion-body p {
  color: rgba(255, 247, 232, 0.78);
}

.service-support .service-toggle {
  border-color: rgba(234, 210, 162, 0.44);
}

.service-support .service-toggle::before,
.service-support .service-toggle::after {
  background: var(--gold-light);
}

.service-support .service-accordion-body li {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 247, 232, 0.86);
}

.service-map {
  display: grid;
  grid-template-columns: minmax(320px, 0.88fr) minmax(0, 1.12fr);
  gap: 28px;
  align-items: stretch;
}

.service-primary {
  min-height: 500px;
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(7, 7, 7, 0.06), rgba(7, 7, 7, 0.78)),
    url("../images/section_about.png") center / cover no-repeat;
  color: #fff7e8;
  box-shadow: 0 28px 82px rgba(36, 33, 29, 0.18);
}

.service-primary .small-label {
  color: var(--gold-light);
}

.service-primary h2,
.property-grid h2,
.range-heading h2,
.issues-copy h2,
.guide-link-panel h2,
.works-link-panel h2 {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.45;
  letter-spacing: 0.08em;
}

.service-primary p,
.detail-card p,
.detail-grid p,
.property-cards p,
.range-heading p,
.range-grid p,
.business-flow p,
.issue-list p,
.guide-link-panel p,
.works-link-panel p {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 15px;
  line-height: 2;
}

.service-primary p {
  margin-top: 20px;
  color: rgba(255, 247, 232, 0.86);
}

.service-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.service-list article {
  position: relative;
  padding: 30px 88px 32px 30px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(125, 90, 45, 0.18);
  box-shadow: 0 18px 48px rgba(36, 33, 29, 0.08);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.service-list article:hover {
  transform: translateY(-4px);
  border-color: rgba(181, 138, 75, 0.46);
  box-shadow: 0 24px 60px rgba(36, 33, 29, 0.14);
}

.service-list .service-sub {
  grid-column: 1 / -1;
  background: #19130e;
  color: #fff7e8;
}

.service-list span,
.range-grid span,
.business-flow span {
  display: block;
  margin-bottom: 14px;
  color: var(--gold-dark);
  font-family: "Cinzel", serif;
  font-size: 28px;
  line-height: 1;
}

.service-sub span {
  color: var(--gold-light);
}

.service-list h3,
.detail-card h3,
.detail-grid h3,
.property-cards h3,
.timeline h3,
.issue-list span {
  font-size: 21px;
  letter-spacing: 0.08em;
  line-height: 1.55;
}

.service-list p {
  margin-top: 12px;
  color: #5a5147;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 15px;
  line-height: 2;
}

.service-sub p {
  color: rgba(255, 247, 232, 0.78);
}

.service-arrow {
  position: absolute;
  right: 24px;
  bottom: 22px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(125, 90, 45, 0.4);
  border-radius: 50%;
  color: var(--gold-dark);
  font-family: "Cinzel", serif;
  font-size: 18px;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.service-arrow:hover {
  background: var(--gold-dark);
  color: #fff;
  transform: translateX(3px);
}

.service-sub .service-arrow {
  border-color: rgba(234, 210, 162, 0.44);
  color: var(--gold-light);
}

.service-sub .service-arrow:hover {
  background: var(--gold-light);
  color: #19130e;
}

.business-detail {
  padding: 96px 0;
  background: #f7f4ee;
  color: var(--dark-text);
}

.detail-stack {
  display: grid;
  gap: 22px;
}

.detail-card {
  scroll-margin-top: 110px;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 44px;
  padding: 42px;
  background: #fff;
  border: 1px solid rgba(125, 90, 45, 0.18);
  box-shadow: 0 24px 70px rgba(36, 33, 29, 0.1);
}

.detail-main {
  background:
    linear-gradient(110deg, #fff 0%, #fff 58%, rgba(237, 226, 207, 0.72) 58%, rgba(237, 226, 207, 0.72) 100%);
}

.detail-card p {
  margin-top: 14px;
  color: #5a5147;
}

.detail-card ul {
  list-style: none;
  display: grid;
  gap: 12px;
  align-content: center;
}

.detail-card li {
  padding: 12px 16px;
  background: rgba(125, 90, 45, 0.08);
  border-left: 2px solid var(--gold);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 14px;
  color: #40382f;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.detail-grid article {
  scroll-margin-top: 110px;
  padding: 30px;
  background: #fff;
  border: 1px solid rgba(125, 90, 45, 0.18);
}

.detail-grid p {
  margin-top: 12px;
  color: #5a5147;
}

.detail-points {
  margin-top: 20px;
  display: grid;
  gap: 10px;
  list-style: none;
}

.detail-points li {
  position: relative;
  padding-left: 18px;
  color: #40382f;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 14px;
  line-height: 1.7;
}

.detail-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--gold);
}

.business-property {
  padding: 96px 0;
  background:
    radial-gradient(circle at 88% 20%, rgba(181, 138, 75, 0.14), transparent 26%),
    linear-gradient(180deg, #0c0b0a, #17110d);
  color: var(--text);
}

.business-property .small-label {
  color: var(--gold);
}

.property-grid {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 58px;
  align-items: start;
}

.property-grid .content-text {
  margin-top: 22px;
  color: rgba(242, 234, 223, 0.76);
}

.property-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.property-cards article {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(181, 138, 75, 0.3);
}

.property-cards img {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

.property-cards h3 {
  padding: 22px 24px 0;
}

.property-cards p {
  padding: 8px 24px 24px;
  color: rgba(242, 234, 223, 0.74);
}

.business-range {
  padding: 92px 0;
  background:
    linear-gradient(90deg, rgba(247, 244, 238, 0.98), rgba(247, 244, 238, 0.78)),
    url("../images/work_03.png") center / cover no-repeat;
  color: var(--dark-text);
}

.range-panel {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 44px;
  padding: 46px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(125, 90, 45, 0.2);
  box-shadow: 0 24px 72px rgba(36, 33, 29, 0.12);
}

.range-heading p {
  margin-top: 18px;
  color: #5a5147;
}

.range-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.range-grid article {
  padding: 24px;
  background: #fff;
  border: 1px solid rgba(125, 90, 45, 0.16);
}

.range-grid strong {
  font-size: 18px;
  letter-spacing: 0.08em;
}

.range-grid p {
  margin-top: 8px;
  color: #5a5147;
}

.business-flow-section {
  padding: 96px 0;
  background: #f7f4ee;
  color: var(--dark-text);
}

.business-flow {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  background: #fff;
  border: 1px solid rgba(125, 90, 45, 0.18);
  box-shadow: 0 22px 68px rgba(36, 33, 29, 0.1);
}

.business-flow li {
  position: relative;
  min-height: 260px;
  padding: 30px 24px;
  border-right: 1px solid rgba(125, 90, 45, 0.16);
}

.business-flow li:last-child {
  border-right: 0;
}

.business-flow li::after {
  content: "";
  position: absolute;
  right: -11px;
  top: 44px;
  width: 20px;
  height: 20px;
  background: #fff;
  border-top: 1px solid rgba(125, 90, 45, 0.18);
  border-right: 1px solid rgba(125, 90, 45, 0.18);
  transform: rotate(45deg);
  z-index: 1;
}

.business-flow li:last-child::after {
  display: none;
}

.business-flow strong {
  display: block;
  font-size: 18px;
  letter-spacing: 0.08em;
  line-height: 1.55;
}

.business-flow p {
  margin-top: 12px;
  color: #5a5147;
}

.business-issues {
  padding: 92px 0;
  background:
    linear-gradient(135deg, #14100c, #080808);
  color: var(--text);
}

.business-issues .small-label {
  color: var(--gold);
}

.issues-grid {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 56px;
  align-items: start;
}

.issues-copy .content-text {
  margin-top: 22px;
  color: rgba(242, 234, 223, 0.76);
}

.issue-list {
  columns: 2;
  column-gap: 18px;
}

.issue-list article {
  break-inside: avoid;
  margin-bottom: 18px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(181, 138, 75, 0.3);
}

.issue-list span {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--gold-light);
}

.issue-list p {
  color: rgba(242, 234, 223, 0.74);
}

.business-works-link {
  padding: 78px 0 92px;
  background:
    linear-gradient(135deg, rgba(247, 244, 238, 0.96), rgba(236, 223, 200, 0.9));
  color: var(--dark-text);
}

.business-guide-link {
  padding: 78px 0 0;
  background:
    linear-gradient(135deg, rgba(247, 244, 238, 0.96), rgba(236, 223, 200, 0.9));
  color: var(--dark-text);
}

.guide-link-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 42px;
  align-items: center;
  padding: 44px;
  background:
    linear-gradient(90deg, rgba(15, 12, 9, 0.92), rgba(15, 12, 9, 0.72)),
    url("../images/work_02.png") center / cover no-repeat;
  border: 1px solid rgba(181, 138, 75, 0.42);
  box-shadow: 0 24px 70px rgba(36, 33, 29, 0.18);
  color: var(--text);
}

.guide-link-panel .small-label {
  color: var(--gold);
}

.guide-link-panel p {
  max-width: 760px;
  margin-top: 16px;
  color: rgba(242, 234, 223, 0.78);
}

.works-link-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 42px;
  align-items: center;
  padding: 44px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.78)),
    url("../images/work_04.png") center / cover no-repeat;
  border: 1px solid rgba(125, 90, 45, 0.2);
  box-shadow: 0 24px 70px rgba(36, 33, 29, 0.12);
}

.works-link-panel p {
  max-width: 720px;
  margin-top: 16px;
  color: #5a5147;
}

.works-link-panel .outline-btn {
  color: #fff7e8;
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  border-color: var(--gold-dark);
  box-shadow: 0 12px 28px rgba(36, 33, 29, 0.18);
}

.works-link-panel .outline-btn:hover {
  background: linear-gradient(135deg, #5f3f1f, var(--gold-dark));
}

@media (min-width: 721px) {
  .service-primary h2,
  .property-grid h2,
  .range-heading h2,
  .issues-copy h2,
  .guide-link-panel h2,
  .works-link-panel h2 {
    font-size: clamp(28px, 3.2vw, 44px);
  }
}

@media (max-width: 1100px) {
  .business-flow {
    grid-template-columns: 1fr;
  }

  .business-flow li {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid rgba(125, 90, 45, 0.16);
  }

  .business-flow li:last-child {
    border-bottom: 0;
  }

  .business-flow li::after {
    display: none;
  }
}

@media (max-width: 1024px) {
  .service-map,
  .service-accordion-layout,
  .property-grid,
  .range-panel,
  .issues-grid,
  .guide-link-panel,
  .works-link-panel {
    grid-template-columns: 1fr;
  }

  .detail-card {
    grid-template-columns: 1fr;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .business-overview,
  .business-services,
  .business-detail,
  .business-property,
  .business-range,
  .business-flow-section,
  .business-issues,
  .business-guide-link,
  .business-works-link {
    padding: 62px 0;
  }

  .service-primary {
    min-height: 360px;
    padding: 28px;
  }

  .service-list,
  .service-accordion-body ul,
  .property-cards,
  .range-grid {
    grid-template-columns: 1fr;
  }

  .service-list .service-sub {
    grid-column: auto;
  }

  .detail-card,
  .service-accordion-item summary,
  .range-panel,
  .guide-link-panel,
  .works-link-panel {
    padding: 28px;
  }

  .service-accordion-item summary {
    grid-template-columns: 56px minmax(0, 1fr) 40px;
    gap: 14px;
  }

  .service-accordion-body {
    padding: 0 28px 28px;
  }

  .service-summary-text strong {
    font-size: 19px;
  }

  .detail-main {
    background: #fff;
  }

  .issue-list {
    columns: 1;
  }

  .works-link-panel .outline-btn {
    width: 100%;
  }

  .guide-link-panel .outline-btn {
    width: 100%;
  }

  .service-list article {
    padding: 28px 76px 30px 28px;
  }
}