.gas-safety-case[data-astro-cid-52oba6tv]{color:#233044;background:#fff;font-family:Arial,Microsoft YaHei,sans-serif}.gas-safety-shell[data-astro-cid-52oba6tv]{width:min(100% - 48px,1200px);margin:0 auto}.gas-safety-hero[data-astro-cid-52oba6tv]{color:#fff;text-align:center;background:linear-gradient(180deg,#07141fd1,#07141f80),var(--gas-safety-hero) 50% 50% / cover no-repeat;align-items:center;min-height:500px;display:flex}.gas-safety-hero-copy[data-astro-cid-52oba6tv]{max-width:1040px;animation:.65s ease-out both gas-safety-hero-reveal;transform:translateY(28px)}.gas-safety-hero[data-astro-cid-52oba6tv] h1[data-astro-cid-52oba6tv]{color:#fff;max-width:920px;margin:0 auto 22px;font-size:clamp(2.05rem,3vw,2.75rem);font-weight:700;line-height:1.2}.gas-safety-hero[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{color:#ffffffe6;max-width:880px;margin:0 auto;font-size:1.125rem;line-height:1.8}.gas-safety-tags[data-astro-cid-52oba6tv]{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:30px;display:flex}.gas-safety-tags[data-astro-cid-52oba6tv] span[data-astro-cid-52oba6tv]{color:#fffffff0;border:1px solid #ffffff80;padding:7px 14px;font-size:.8125rem}.gas-safety-content[data-astro-cid-52oba6tv]{padding:78px 0 88px}.gas-safety-layout[data-astro-cid-52oba6tv]{grid-template-columns:minmax(0,1fr) minmax(270px,.38fr);align-items:start;gap:54px;display:grid}.gas-safety-main[data-astro-cid-52oba6tv]{min-width:0}.gas-safety-section[data-astro-cid-52oba6tv]+.gas-safety-section[data-astro-cid-52oba6tv]{margin-top:68px}.gas-safety-heading[data-astro-cid-52oba6tv] h2[data-astro-cid-52oba6tv]{color:#233044;margin:0;font-size:1.25rem;font-weight:700;line-height:1.5}.gas-safety-heading[data-astro-cid-52oba6tv] i[data-astro-cid-52oba6tv]{background:#f98e23;width:44px;height:2px;margin-top:14px;display:block}.gas-safety-copy[data-astro-cid-52oba6tv],.gas-safety-intro[data-astro-cid-52oba6tv]{color:#4b5563;text-align:justify;margin:28px 0 0;font-size:.9375rem;line-height:2}.gas-safety-copy[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{margin:0}.gas-safety-copy[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]+p[data-astro-cid-52oba6tv]{margin-top:14px}.gas-safety-pilot-grid[data-astro-cid-52oba6tv]{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:32px;display:grid}.gas-safety-pilot-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]{text-align:center;background:#f6f8fa;border-top:2px solid #f98e23;min-width:0;padding:22px 16px;transition:transform .25s,box-shadow .25s}.gas-safety-pilot-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]:hover{transform:translateY(-3px);box-shadow:0 12px 26px #2330441a}.gas-safety-pilot-grid[data-astro-cid-52oba6tv] strong[data-astro-cid-52oba6tv]{color:#d66f12;font-size:1.38rem;line-height:1.2;display:block}.gas-safety-pilot-grid[data-astro-cid-52oba6tv] h3[data-astro-cid-52oba6tv]{color:#233044;margin:10px 0 0;font-size:.875rem;line-height:1.5}.gas-safety-pilot-grid[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{color:#778190;margin:7px 0 0;font-size:.75rem;line-height:1.6}.gas-safety-challenges[data-astro-cid-52oba6tv]{border-top:1px solid #e7ebef;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 30px;margin:30px 0 0;padding:0;list-style:none;display:grid}.gas-safety-challenges[data-astro-cid-52oba6tv] li[data-astro-cid-52oba6tv]{border-bottom:1px solid #e7ebef;grid-template-columns:46px minmax(0,1fr);gap:16px;min-width:0;padding:24px 0;display:grid}.gas-safety-challenges[data-astro-cid-52oba6tv] li[data-astro-cid-52oba6tv]>span[data-astro-cid-52oba6tv]{color:#f98e23;letter-spacing:.08em;font-size:.8125rem;font-weight:800}.gas-safety-challenges[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{color:#4b5563;margin:0;font-size:.875rem;line-height:1.8}.gas-safety-feature-grid[data-astro-cid-52oba6tv]{grid-template-columns:repeat(4,minmax(0,1fr));gap:25px;margin-top:36px;display:grid}.gas-safety-feature-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]{text-align:center;min-width:0;transition:transform .25s}.gas-safety-feature-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]:hover{transform:translateY(-3px)}.gas-safety-feature-icon{color:#f98e23;width:29px;height:29px}.gas-safety-feature-grid[data-astro-cid-52oba6tv] h3[data-astro-cid-52oba6tv],.gas-safety-flow[data-astro-cid-52oba6tv] h3[data-astro-cid-52oba6tv],.gas-safety-outcomes[data-astro-cid-52oba6tv] h3[data-astro-cid-52oba6tv]{color:#233044;margin:17px 0 0;font-size:.9375rem;font-weight:700;line-height:1.55}.gas-safety-feature-grid[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv],.gas-safety-flow[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv],.gas-safety-outcomes[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{color:#596474;text-align:left;margin:9px 0 0;font-size:.8125rem;line-height:1.78}.gas-safety-flow[data-astro-cid-52oba6tv]{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:34px 0 0;padding:0;list-style:none;display:grid;position:relative}.gas-safety-flow[data-astro-cid-52oba6tv]:before{content:"";background:linear-gradient(90deg,#f98e23,#f98e2333);height:2px;animation:2.2s ease-in-out infinite gas-safety-flow-pulse;position:absolute;top:24px;left:6%;right:6%}.gas-safety-flow[data-astro-cid-52oba6tv] li[data-astro-cid-52oba6tv]{min-width:0;padding-top:66px;position:relative}.gas-safety-flow-index[data-astro-cid-52oba6tv]{z-index:1;color:#f98e23;background:#fff;border:2px solid #f98e23;place-items:center;width:48px;height:48px;font-size:.8125rem;font-weight:800;display:grid;position:absolute;top:0;left:0}.gas-safety-flow[data-astro-cid-52oba6tv] li[data-astro-cid-52oba6tv]:not(:last-child):after{content:"›";z-index:1;color:#f98e23;background:#fff;font-size:1.7rem;line-height:1;position:absolute;top:9px;right:0}.gas-safety-flow[data-astro-cid-52oba6tv] small[data-astro-cid-52oba6tv]{color:#d66f12;letter-spacing:.12em;text-transform:uppercase;margin-bottom:6px;font-size:.6875rem;font-weight:800;display:block}.gas-safety-flow[data-astro-cid-52oba6tv] h3[data-astro-cid-52oba6tv]{margin-top:0}.gas-safety-figure[data-astro-cid-52oba6tv]{background:#f4f6f8;border:1px solid #e7ebef;margin:36px 0 0;padding:14px;overflow:hidden;box-shadow:0 12px 30px #23304417}.gas-safety-figure[data-astro-cid-52oba6tv] img[data-astro-cid-52oba6tv]{object-fit:contain;background:#fff;width:100%;height:auto;transition:transform .35s;display:block}.gas-safety-figure[data-astro-cid-52oba6tv]:hover img[data-astro-cid-52oba6tv]{transform:scale(1.012)}.gas-safety-figure[data-astro-cid-52oba6tv] figcaption[data-astro-cid-52oba6tv]{color:#7a8492;text-align:center;margin-top:13px;font-size:.75rem;line-height:1.6}.gas-safety-outcomes[data-astro-cid-52oba6tv]{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:30px;display:grid}.gas-safety-outcomes[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]{background:#233044;border-top:2px solid #f98e23;min-width:0;padding:24px 22px;transition:transform .25s,box-shadow .25s}.gas-safety-outcomes[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]:hover{transform:translateY(-3px);box-shadow:0 12px 28px #23304429}.gas-safety-outcomes[data-astro-cid-52oba6tv] strong[data-astro-cid-52oba6tv]{color:#f98e23;margin-bottom:10px;font-size:1.32rem;line-height:1.25;display:block}.gas-safety-outcomes[data-astro-cid-52oba6tv] h3[data-astro-cid-52oba6tv]{color:#fff;margin-top:0}.gas-safety-outcomes[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{color:#ffffffbd}.gas-safety-boundary[data-astro-cid-52oba6tv]{background:#f7f9fb;border-left:3px solid #f98e23;padding:32px}.gas-safety-boundary[data-astro-cid-52oba6tv]>p[data-astro-cid-52oba6tv]{color:#4b5563;text-align:justify;margin:24px 0 0;font-size:.9rem;line-height:1.9}.gas-safety-boundary[data-astro-cid-52oba6tv]>p[data-astro-cid-52oba6tv]+p[data-astro-cid-52oba6tv]{margin-top:12px}.gas-safety-boundary[data-astro-cid-52oba6tv] nav[data-astro-cid-52oba6tv]{flex-wrap:wrap;gap:10px 18px;margin-top:24px;display:flex}.gas-safety-boundary[data-astro-cid-52oba6tv] nav[data-astro-cid-52oba6tv] a[data-astro-cid-52oba6tv]{color:#d66f12;align-items:center;gap:7px;font-size:.8125rem;font-weight:700;text-decoration:none;display:inline-flex}.gas-safety-boundary[data-astro-cid-52oba6tv] nav[data-astro-cid-52oba6tv] a[data-astro-cid-52oba6tv]:hover{color:#a94e00}.gas-safety-boundary[data-astro-cid-52oba6tv] nav[data-astro-cid-52oba6tv] span[data-astro-cid-52oba6tv]{transition:transform .2s}.gas-safety-boundary[data-astro-cid-52oba6tv] nav[data-astro-cid-52oba6tv] a[data-astro-cid-52oba6tv]:hover span[data-astro-cid-52oba6tv]{transform:translate(3px)}.gas-safety-related-grid[data-astro-cid-52oba6tv]{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:34px;display:grid}.gas-safety-related-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]{background:#f6f8fa;grid-template-columns:minmax(0,1fr) minmax(170px,1.15fr);min-height:140px;transition:transform .25s,box-shadow .25s;display:grid;overflow:hidden}.gas-safety-related-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]:hover{transform:translateY(-3px);box-shadow:0 12px 28px #2330441f}.gas-safety-related-grid[data-astro-cid-52oba6tv] img[data-astro-cid-52oba6tv]{object-fit:cover;width:100%;height:100%;min-height:140px;transition:transform .3s}.gas-safety-related-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]:hover img[data-astro-cid-52oba6tv]{transform:scale(1.04)}.gas-safety-related-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]>div[data-astro-cid-52oba6tv]{flex-direction:column;justify-content:center;align-items:flex-start;padding:18px;display:flex}.gas-safety-related-grid[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{color:#233044;margin:0 0 14px;font-size:.875rem;font-weight:700;line-height:1.55}.gas-safety-related-grid[data-astro-cid-52oba6tv] a[data-astro-cid-52oba6tv],.gas-safety-contact-button[data-astro-cid-52oba6tv]{color:#fff;background:#f98e23;justify-content:center;align-items:center;font-weight:700;text-decoration:none;transition:background .2s,transform .2s;display:inline-flex}.gas-safety-related-grid[data-astro-cid-52oba6tv] a[data-astro-cid-52oba6tv]{min-height:30px;padding:5px 12px;font-size:.75rem}.gas-safety-related-grid[data-astro-cid-52oba6tv] a[data-astro-cid-52oba6tv]:hover,.gas-safety-contact-button[data-astro-cid-52oba6tv]:hover{background:#e47816}.gas-safety-contact-button[data-astro-cid-52oba6tv]:hover{transform:translateY(-2px)}.gas-safety-contact[data-astro-cid-52oba6tv]{text-align:center;background:#fff;border:1px solid #eef0f2;border-top:3px solid #f98e23;flex-direction:column;justify-content:center;align-items:center;min-height:310px;padding:44px 30px 38px;display:flex;position:sticky;top:108px;box-shadow:0 14px 34px #2330441a}.gas-safety-contact[data-astro-cid-52oba6tv] img[data-astro-cid-52oba6tv]{width:min(176px,100%);height:auto}.gas-safety-contact[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{color:#233044;margin:19px 0 10px;font-size:1rem;font-weight:500}.gas-safety-contact[data-astro-cid-52oba6tv]>a[data-astro-cid-52oba6tv]:not(.gas-safety-contact-button){color:#f98e23;font-size:1.25rem;font-weight:700;text-decoration:none}.gas-safety-contact-button[data-astro-cid-52oba6tv]{min-height:44px;margin-top:21px;padding:8px 26px;font-size:.8125rem}.gas-safety-faq{background:#f6f8fa}@keyframes gas-safety-hero-reveal{0%{opacity:0;transform:translateY(42px)}to{opacity:1;transform:translateY(28px)}}@keyframes gas-safety-flow-pulse{0%,to{opacity:.52}50%{opacity:1}}@media (width<=900px){.gas-safety-layout[data-astro-cid-52oba6tv]{grid-template-columns:1fr;gap:42px}.gas-safety-contact[data-astro-cid-52oba6tv]{position:static}}@media (width<=800px){.gas-safety-pilot-grid[data-astro-cid-52oba6tv],.gas-safety-feature-grid[data-astro-cid-52oba6tv]{grid-template-columns:repeat(2,minmax(0,1fr))}.gas-safety-flow[data-astro-cid-52oba6tv]{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px}.gas-safety-flow[data-astro-cid-52oba6tv]:before,.gas-safety-flow[data-astro-cid-52oba6tv] li[data-astro-cid-52oba6tv]:after{display:none}.gas-safety-related-grid[data-astro-cid-52oba6tv]{grid-template-columns:1fr}}@media (width<=560px){.gas-safety-shell[data-astro-cid-52oba6tv]{width:min(100% - 36px,1200px)}.gas-safety-hero[data-astro-cid-52oba6tv]{background-position:52%;min-height:464px}.gas-safety-hero-copy[data-astro-cid-52oba6tv]{animation-name:gas-safety-hero-reveal-mobile;transform:translateY(20px)}.gas-safety-hero[data-astro-cid-52oba6tv] h1[data-astro-cid-52oba6tv]{max-width:355px;font-size:1.78rem}.gas-safety-hero[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{font-size:1rem}.gas-safety-content[data-astro-cid-52oba6tv]{padding:58px 0 62px}.gas-safety-section[data-astro-cid-52oba6tv]+.gas-safety-section[data-astro-cid-52oba6tv]{margin-top:54px}.gas-safety-pilot-grid[data-astro-cid-52oba6tv]{gap:12px}.gas-safety-pilot-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]{padding:19px 10px}.gas-safety-challenges[data-astro-cid-52oba6tv]{grid-template-columns:1fr;gap:0}.gas-safety-feature-grid[data-astro-cid-52oba6tv]{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px 20px}.gas-safety-flow[data-astro-cid-52oba6tv]{grid-template-columns:1fr;gap:18px}.gas-safety-flow[data-astro-cid-52oba6tv] li[data-astro-cid-52oba6tv]{min-height:48px;padding:0 0 0 66px}.gas-safety-figure[data-astro-cid-52oba6tv]{padding:8px}.gas-safety-outcomes[data-astro-cid-52oba6tv]{grid-template-columns:1fr}.gas-safety-boundary[data-astro-cid-52oba6tv]{padding:26px 20px}.gas-safety-related-grid[data-astro-cid-52oba6tv]{gap:20px}.gas-safety-related-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]{grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);min-height:112px}.gas-safety-related-grid[data-astro-cid-52oba6tv] img[data-astro-cid-52oba6tv]{min-height:112px}.gas-safety-related-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv]>div[data-astro-cid-52oba6tv]{padding:14px}.gas-safety-related-grid[data-astro-cid-52oba6tv] p[data-astro-cid-52oba6tv]{margin-bottom:10px;font-size:.8125rem}.gas-safety-contact[data-astro-cid-52oba6tv]{padding:38px 24px}}@keyframes gas-safety-hero-reveal-mobile{0%{opacity:0;transform:translateY(34px)}to{opacity:1;transform:translateY(20px)}}@media (prefers-reduced-motion:reduce){.gas-safety-hero-copy[data-astro-cid-52oba6tv],.gas-safety-flow[data-astro-cid-52oba6tv]:before{animation:none}.gas-safety-pilot-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv],.gas-safety-feature-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv],.gas-safety-figure[data-astro-cid-52oba6tv] img[data-astro-cid-52oba6tv],.gas-safety-outcomes[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv],.gas-safety-boundary[data-astro-cid-52oba6tv] nav[data-astro-cid-52oba6tv] span[data-astro-cid-52oba6tv],.gas-safety-related-grid[data-astro-cid-52oba6tv] article[data-astro-cid-52oba6tv],.gas-safety-related-grid[data-astro-cid-52oba6tv] img[data-astro-cid-52oba6tv],.gas-safety-contact-button[data-astro-cid-52oba6tv]{transition:none}}