:root{--red:#b5121b;--red2:#8f0710;--navy:#172536;--ink:#1e2937;--muted:#687586;--line:#e5e9ee;--soft:#f6f8fa;--gold:#f2b51b;--green:#0a9b60;--shadow:0 18px 45px rgba(20,35,52,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;color:var(--ink);background:#fff;font-family:Inter,system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.72}a{color:var(--red);text-decoration:none}a:hover{color:var(--red2)}img{max-width:100%;height:auto}h1,h2,h3,h4{font-weight:800;line-height:1.17;letter-spacing:-.025em;color:var(--navy)}.container{max-width:1240px}.topbar{background:#172536;color:#dce4ec;padding:7px 0;font-size:11px}.navbar{background:rgba(255,255,255,.97)!important;backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line);z-index:100}.navbar-brand{font-size:14px;color:var(--navy)}.navbar-brand b{font-weight:900}.navbar-brand small{font-size:10px;color:var(--muted)}.brand-mark{width:46px;height:42px;border:2px solid var(--red);color:var(--red);display:grid;place-items:center;font-weight:950;font-size:19px;letter-spacing:-2px;border-radius:5px}.nav-link{font-size:13px;font-weight:750;color:#263548!important}.nav-link:hover{color:var(--red)!important}.btn{font-weight:800;border-radius:10px;padding:11px 18px}.btn-primary{background:linear-gradient(135deg,#c51b25,#970811);border:0;box-shadow:0 9px 22px rgba(181,18,27,.16)}.btn-success{background:#079b60;border:0}.btn-outline-light{border-width:1.5px}.hero{position:relative;overflow:hidden;border-radius:0 0 26px 26px;background:linear-gradient(90deg,rgba(79,0,7,.97) 0%,rgba(120,4,13,.91) 38%,rgba(93,5,11,.24) 72%),url('visuals/hero-hydrant-cas.webp') center/cover;color:white;min-height:390px;display:flex;align-items:center}.hero-inner{padding:54px 0}.hero h1{color:#fff;font-size:clamp(2.2rem,4.4vw,4rem);max-width:700px}.hero h1 span{color:#ffd04a}.hero p{color:#f8e8e8;max-width:660px;font-size:1.05rem}.hero-kicker,.eyebrow{font-size:11px;font-weight:900;letter-spacing:.14em;text-transform:uppercase}.hero-kicker{color:#ffd56c}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.hero-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:25px;color:#fff;font-size:12px;font-weight:700}.hero-points span:before{content:"✓";color:#ffd04a;margin-right:8px;font-weight:900}.feature-strip{position:relative;margin-top:-1px;background:#f6f7f8;border-bottom:1px solid var(--line);padding:18px 0}.feature{display:flex;gap:13px;align-items:center;border-right:1px solid #dce1e7;padding:4px 18px}.feature:last-child{border:0}.feature i{font-size:26px;color:var(--red)}.feature b{display:block;font-size:14px;color:var(--navy)}.feature small{display:block;font-size:11px;color:var(--muted)}.section{padding:64px 0}.section.soft{background:var(--soft)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:26px}.section-head h2{font-size:clamp(1.65rem,3vw,2.4rem);margin:8px 0}.eyebrow{color:var(--red)}.lead-copy{color:var(--muted);max-width:740px}.service-card,.article-card,.premium-box,.product-card{height:100%;background:#fff;border:1px solid var(--line);border-radius:17px;overflow:hidden;box-shadow:0 8px 28px rgba(20,35,52,.055);transition:.2s}.service-card:hover,.article-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.thumb{width:100%;aspect-ratio:16/10;object-fit:cover}.card-body-seo{padding:19px}.card-body-seo h2,.card-body-seo h3{font-size:18px}.service-icon{width:42px;height:42px;border-radius:12px;background:#fff0f0;color:var(--red);display:grid;place-items:center;font-size:19px;margin-top:-42px;position:relative;border:4px solid white}.article-meta{font-size:11px;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}.premium-box{padding:23px}.premium-content{font-size:16px;line-height:1.85}.premium-content h2{margin-top:36px;font-size:clamp(1.45rem,2.4vw,2rem)}.premium-content h3{margin-top:25px;font-size:1.22rem}.premium-content p{margin:0 0 1rem}.premium-content li{margin:7px 0}.toc{background:#f7f8fa;border:1px solid var(--line);border-left:4px solid var(--red);border-radius:13px;padding:20px 24px;margin:25px 0 32px}.toc strong{color:var(--navy)}.toc a{font-weight:700}.cta-panel{padding:30px;border-radius:20px;background:linear-gradient(115deg,#7e0610,#c51b25);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:22px}.cta-panel h2{color:#fff}.cta-panel p{color:#ffe6e6}.page-hero{padding:40px;border-radius:22px;background:linear-gradient(115deg,#172536,#283d55);color:#fff}.page-hero h1{color:#fff}.page-hero p{color:#dbe6ef}.page-hero-image{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px}.site-footer{margin-top:60px;background:#111e2d;color:#c6d0da;padding:52px 0 22px}.site-footer a{display:block;color:#fff;margin:7px 0}.footer-brand{font-size:20px;font-weight:900;color:#fff}.footer-title{font-weight:900;color:#ffcc5b;margin-bottom:12px}.site-footer hr{border-color:#344456}.wa-float{position:fixed;right:20px;bottom:20px;z-index:999;width:58px;height:58px;border-radius:50%;background:#08a65f;color:white;display:grid;place-items:center;font-size:27px;box-shadow:0 12px 30px #0003}.breadcrumb-wrap{font-size:12px;color:var(--muted)}.small-muted{font-size:13px;color:var(--muted)}.faq-item{border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:15px 18px}.faq-item summary{font-weight:800;cursor:pointer}.search-box{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}.article-image{width:100%;max-height:430px;object-fit:cover;border-radius:18px;margin-bottom:24px}.empty-state{padding:35px;text-align:center;border:1px dashed #cbd3dc;border-radius:16px;background:#fafbfc}@media(max-width:991px){.hero{min-height:360px;background-position:58% center}.feature{border:0;padding:9px}.section-head{align-items:start;flex-direction:column}.cta-panel{align-items:flex-start;flex-direction:column}}@media(max-width:575px){body{font-size:15px}.hero{border-radius:0 0 18px 18px;min-height:420px;background-position:60% center}.hero-inner{padding:42px 0}.hero h1{font-size:2.35rem}.section{padding:46px 0}.page-hero{padding:26px 20px}.wa-float{width:54px;height:54px;right:14px;bottom:14px}}