.wsp-gas-reference-page {
  margin: 0;
  background: #f6f7f9;
  color: #1f2937;
}

.wsp-gas-reference-main {
  padding: 42px 18px 68px;
}

.wsp-gas-reference-container {
  max-width: 1180px;
  margin: 0 auto;
}

.wsp-gas-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  color: #64748b;
  font-size: 14px;
}

.wsp-gas-breadcrumbs a {
  color: #ea580c;
  font-weight: 800;
  text-decoration: none;
}

.wsp-gas-hero,
.wsp-gas-section,
.wsp-gas-safety,
.wsp-gas-buy,
.wsp-gas-faq,
.wsp-gas-related {
  border: 1px solid #e5e7eb;
  background: #ffffff;
}

.wsp-gas-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
  gap: 28px;
  align-items: center;
  padding: 32px;
  margin-bottom: 24px;
}

.wsp-gas-eyebrow {
  margin: 0 0 10px;
  color: #ea580c;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.wsp-gas-hero h1 {
  margin: 0 0 12px;
  color: #111827;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
}

.wsp-gas-subtitle {
  margin: 0 0 16px;
  color: #334155;
  font-size: 22px;
  font-weight: 800;
}

.wsp-gas-intro {
  margin: 0;
  color: #475569;
  font-size: 18px;
  line-height: 1.62;
}

.wsp-gas-hero-card {
  border-left: 4px solid #f97316;
  background: #fff7ed;
  padding: 18px;
  color: #7c2d12;
}

.wsp-gas-hero-card strong {
  display: block;
  margin-bottom: 8px;
  color: #111827;
  font-size: 18px;
}

.wsp-gas-section,
.wsp-gas-safety,
.wsp-gas-buy,
.wsp-gas-faq,
.wsp-gas-related {
  padding: 24px;
  margin-bottom: 24px;
}

.wsp-gas-section h2,
.wsp-gas-safety h2,
.wsp-gas-buy h2,
.wsp-gas-faq h2,
.wsp-gas-related h2 {
  margin: 0 0 12px;
  color: #111827;
  font-size: 28px;
  line-height: 1.12;
}

.wsp-gas-section p,
.wsp-gas-safety p,
.wsp-gas-buy p,
.wsp-gas-faq p,
.wsp-gas-related p {
  color: #475569;
  line-height: 1.58;
}

.wsp-gas-table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.wsp-gas-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.wsp-gas-table th,
.wsp-gas-table td {
  border-bottom: 1px solid #e5e7eb;
  padding: 13px 12px;
  text-align: left;
  vertical-align: top;
}

.wsp-gas-table th {
  color: #111827;
  background: #f8fafc;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.wsp-gas-cga {
  display: inline-flex;
  border: 1px solid #fed7aa;
  background: #fff7ed;
  color: #9a3412;
  padding: 4px 8px;
  font-weight: 900;
}

.wsp-gas-guide-link,
.wsp-gas-card a,
.wsp-gas-related a {
  color: #ea580c;
  font-weight: 900;
  text-decoration: none;
}

.wsp-gas-guide-link:hover,
.wsp-gas-card a:hover,
.wsp-gas-related a:hover {
  text-decoration: underline;
}

.wsp-gas-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.wsp-gas-card,
.wsp-gas-buy-card,
.wsp-gas-size-card,
.wsp-gas-faq details {
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  padding: 16px;
}

.wsp-gas-card h3,
.wsp-gas-buy-card h3,
.wsp-gas-size-card h3 {
  margin: 0 0 8px;
  color: #111827;
  font-size: 19px;
}

.wsp-gas-card p,
.wsp-gas-buy-card p,
.wsp-gas-size-card p {
  margin: 0 0 10px;
}

.wsp-gas-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.wsp-gas-chip {
  border: 1px solid #dbeafe;
  background: #eff6ff;
  color: #1d4ed8;
  padding: 5px 8px;
  font-size: 12px;
  font-weight: 900;
}

.wsp-gas-safety,
.wsp-gas-verify {
  border-left: 4px solid #dc2626;
  background: #fff7f7;
}

.wsp-gas-safety ul,
.wsp-gas-section ul {
  margin: 10px 0 0;
  padding-left: 20px;
  color: #475569;
  line-height: 1.58;
}

.wsp-gas-verify {
  margin: 16px 0;
  padding: 14px 16px;
  color: #7f1d1d;
}

.wsp-gas-verify strong {
  display: block;
  color: #111827;
  margin-bottom: 4px;
}

.wsp-gas-affiliate {
  border: 1px solid #fed7aa;
  background: #fff7ed;
  color: #7c2d12 !important;
  padding: 12px 14px;
  font-size: 14px;
}

.wsp-gas-buy-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.wsp-gas-buy-placeholder {
  display: inline-flex;
  margin-top: auto;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #475569;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 900;
}

.wsp-gas-related-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.wsp-gas-related-grid a {
  border: 1px solid #e5e7eb;
  background: #f8fafc;
  padding: 12px;
}

.wsp-gas-faq details {
  margin-bottom: 10px;
}

.wsp-gas-faq summary {
  cursor: pointer;
  color: #111827;
  font-weight: 900;
}

.wsp-gas-source-note {
  margin-top: 18px;
  color: #64748b;
  font-size: 13px;
}

@media (max-width: 980px) {
  .wsp-gas-hero,
  .wsp-gas-grid,
  .wsp-gas-buy-grid,
  .wsp-gas-related-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .wsp-gas-reference-main {
    padding: 28px 12px 54px;
  }

  .wsp-gas-hero,
  .wsp-gas-section,
  .wsp-gas-safety,
  .wsp-gas-buy,
  .wsp-gas-faq,
  .wsp-gas-related {
    padding: 18px;
  }

  .wsp-gas-hero h1 {
    font-size: 34px;
  }
}