.page-gas-business {
  --gbs-green: #6ab96f;
}

/* ---------- Hero ---------- */
.gbs-hero {
  position: relative;
  height: 480px;
  min-height: 480px;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 48px 0;
  background: var(--gulf-navy);
}
.gbs-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gbs-hero-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 17, 28, 0.35) 0%, rgba(4, 17, 28, 0.18) 45%, rgba(4, 17, 28, 0.5) 100%);
}
.gbs-hero-inner {
  position: relative;
  text-align: center;
}
.gbs-hero h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(34px, 5.6vw, 64px);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: #fff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

/* ---------- Breadcrumb ---------- */
.gbs-crumb {
  background: var(--bg-soft);
}
.gbs-crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 16px 0;
  list-style: none;
  font-size: 14px;
  color: var(--soft);
}
.gbs-crumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--line);
}
.gbs-crumb a {
  color: var(--soft);
  text-decoration: none;
}
.gbs-crumb a:hover { color: var(--blue); }
.gbs-crumb [aria-current] { color: var(--gulf-navy); }

/* ---------- Overview ---------- */
.gbs-intro {
  padding: 80px 0 64px;
  background: var(--bg);
}
.gbs-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 48px;
  align-items: start;
}
.gbs-intro h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(32px, 4.4vw, 54px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}
.gbs-intro-copy p {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}
.gbs-intro-copy p:last-child { margin-bottom: 0; }
.gbs-intro-visual {
  margin: 56px 0 0;
  border-radius: 16px;
  overflow: hidden;
}
.gbs-intro-visual img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---------- Stats ---------- */
.gbs-stats {
  position: relative;
  padding: 72px 0 80px;
  overflow: hidden;
  background: var(--bg-soft);
}
.gbs-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 280px));
  justify-content: center;
  gap: clamp(48px, 10vw, 120px);
}
.gbs-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.gbs-stat-icon i {
  font-size: 40px;
  line-height: 1;
  color: var(--gulf-navy);
}
.gbs-stat p {
  margin: 20px 0 0;
  max-width: 16em;
  min-height: 2.6em;
  font-family: var(--display);
  font-size: 18px;
  font-weight: 500;
  line-height: 1.3;
  color: var(--ink);
}
.gbs-stat-value {
  display: block;
  margin-top: 14px;
  font-family: var(--display);
  font-size: clamp(38px, 4.4vw, 56px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gulf-navy);
}
.gbs-stat-unit {
  margin-top: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gulf-navy);
}
.gbs-stats-curve {
  /* position: absolute; */
  left: -5%;
  right: -5%;
  bottom: -1px;
  height: 90px;
  /* background: var(--bg); */
  border-radius: 100% 100% 0 0 / 100% 100% 0 0;
}

/* ---------- Projects accordion ---------- */
.gbs-info {
  padding: 72px 0 88px;
  background: var(--bg);
}
.gbs-info h2 {
  margin: 0 0 28px;
  font-family: var(--display);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.gbs-acc { border-top: 1px solid var(--line); }
.gbs-acc-item {
  border-bottom: 1px solid var(--line);
  transition: border-color 0.35s ease;
}
.gbs-acc-item.is-open { border-bottom-color: var(--blue); }
.gbs-acc-item h3 { margin: 0; }
.gbs-acc-head {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 4px;
  border: 0;
  background: transparent;
  text-align: left;
  font-family: var(--display);
  font-size: clamp(17px, 1.8vw, 24px);
  font-weight: 500;
  line-height: 1.4;
  color: var(--ink);
  text-shadow: 0 0 0 transparent;
  cursor: pointer;
  transition: color 0.35s ease, text-shadow 0.35s ease;
}
.gbs-acc-head:hover,
.gbs-acc-item.is-open .gbs-acc-head {
  color: var(--gulf-navy);
  text-shadow: 0.28px 0 0 var(--gulf-navy), -0.28px 0 0 var(--gulf-navy);
}
.gbs-acc-sign {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 4px;
}
.gbs-acc-sign::before,
.gbs-acc-sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transform: translateY(-50%);
  transition: transform 0.28s ease, opacity 0.28s ease;
}
.gbs-acc-sign::after { transform: translateY(-50%) rotate(90deg); }
.gbs-acc-item.is-open .gbs-acc-sign::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}
.gbs-acc { overflow-anchor: none; }
.gbs-acc-panel {
  overflow: hidden;
  overflow-anchor: none;
  height: 0;
  transition: height 0.32s ease;
}
.gbs-acc-body { padding: 0 4px 36px; }
.gbs-acc-body--split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: center;
}
.gbs-acc-body--split .gbs-acc-media { order: -1; }
.gbs-acc-panel .gbs-acc-body--split:nth-child(even of .gbs-acc-body--split) {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
}
.gbs-acc-panel .gbs-acc-body--split:nth-child(even of .gbs-acc-body--split) .gbs-acc-media { order: 0; }
.gbs-acc-copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}
.gbs-cap {
  margin: 8px 0 0;
  font-family: var(--display);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.gbs-acc-media {
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
}
.gbs-acc-media img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---------- Map ---------- */
.gbs-projects {
  padding: 24px 0 96px;
  background: var(--bg);
}
.gbs-projects h2 {
  margin: 0 0 24px;
  font-family: var(--display);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.gbs-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 28px;
}
.gbs-tab {
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  font-family: var(--text);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink);
  cursor: pointer;
}
.gbs-tab.is-active {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}
.gbs-map-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  gap: 48px;
  align-items: start;
}
.gbs-map-stage {
  position: relative;
  width: min(680px, 100%);
  margin: 0 auto;
}
.gbs-map-img {
  width: 100%;
  height: auto;
  display: block;
}
.gbs-pin {
  position: absolute;
  width: 34px;
  height: 34px;
  transform: translate(-50%, -50%);
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.gbs-pin[data-location="ayutthaya"] { left: 40.5%; top: 41%; }
.gbs-pin[data-location="bangkok"] { left: 40.5%; top: 44.5%; }
.gbs-pin[data-location="chonburi"] { left: 46%; top: 47.5%; }
.gbs-pin[data-location="pathumthani"] { left: 41.75%; top: 42.5%; }
.gbs-pin[data-location="rayong"] { left: 48%; top: 50.5%; }
.gbs-pin[data-location="samut-prakan"] { left: 42.25%; top: 45.5%; }
.gbs-pin-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 11px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--gulf-navy);
}
.gbs-pin-wave {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: rgba(26, 115, 232, 0.18);
  opacity: 0;
  transform: scale(0.4);
}
.gbs-pin:hover .gbs-pin-wave,
.gbs-pin.is-active .gbs-pin-wave {
  opacity: 1;
  transform: scale(1);
}
.gbs-pin:hover .gbs-pin-dot,
.gbs-pin.is-active .gbs-pin-dot {
  transform: translate(-50%, -50%) scale(1.25);
  background: var(--blue);
}
.gbs-map-hint {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  max-width: none;
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--soft);
}
.gbs-map-hint-dot {
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--gulf-navy);
}
.gbs-map-card h3 {
  margin: 0 0 18px;
  font-family: var(--display);
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.gbs-map-label {
  margin: 16px 0 0;
  font-family: var(--display);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
}
.gbs-map-value {
  display: block;
  margin-top: 10px;
  font-family: var(--display);
  font-size: clamp(38px, 4.4vw, 56px);
  font-weight: 400;
  line-height: 1;
  color: var(--gulf-navy);
}
.gbs-map-unit {
  display: inline-block;
  margin-top: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--gulf-navy);
}
.gbs-map-count {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--blue);
}
.gbs-map-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.gbs-map-list li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg);
}
.gbs-map-list li + li { margin-top: 12px; }
.gbs-map-list strong {
  display: block;
  font-family: var(--display);
  font-size: 18px;
  font-weight: 500;
  color: var(--ink);
}
.gbs-map-list span {
  display: block;
  margin-top: 4px;
  font-size: 15px;
  color: var(--muted);
}
.gbs-map-back {
  margin-top: 20px;
  padding: 0;
  border: 0;
  background: transparent;
  font-family: var(--text);
  font-size: 14px;
  font-weight: 500;
  color: var(--blue);
  cursor: pointer;
}
.gbs-map-back:hover { text-decoration: underline; }
.gbs-country[hidden] { display: none; }

@media (max-width: 980px) {
  .gbs-intro-grid,
  .gbs-stats-grid,
  .gbs-acc-body--split,
  .gbs-map-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .gbs-stat p { min-height: 0; }
}

@media (max-width: 479px) {
  .gbs-hero h1,
  .gbs-intro h2,
  .gbs-info h2,
  .gbs-projects h2 {
    font-size: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gbs-acc-panel { transition: none; }
}

.gbs-sub + .gbs-sub { margin-top: 36px; }
.gbs-sub h3 { margin: 0 0 12px; font-family: var(--display); font-size: clamp(20px, 2vw, 26px); font-weight: 500; letter-spacing: -0.02em; color: var(--ink); }
.gbs-ext { display: table; margin-top: 12px; font-size: 15px; font-weight: 500; color: var(--blue); text-decoration: none; }
.gbs-ext::after { content: " →"; }
.gbs-ext:hover { color: var(--blue-hover); }
.gbs-lead-line {
  margin: 0 0 8px;
  max-width: 820px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.gbs-acc-copy h4 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.gbs-acc-body + .gbs-acc-body {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}