*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;color:#26313a;background:#fff;line-height:1.55}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}:root{--navy:#003b73;--blue:#005baa;--teal:#009c9a;--green:#58b947;--ink:#26313a;--soft:#f3f6f8;--line:#dfe7ec;--muted:#667681;--shadow:0 16px 50px rgba(4,45,79,.12);--shadow-sm:0 8px 25px rgba(4,45,79,.09);--grad:linear-gradient(120deg,#003b73 0%,#005baa 42%,#009c9a 75%,#58b947 120%)}
.topbar{background:#052a4b;color:#d5e5ef;font-size:.78rem}.topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:24px}.topbar a{color:#fff}.topbar-links{display:flex;gap:18px}.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(208,220,228,.8)}.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative}.brand img{width:auto;height:55px;object-fit:contain}.nav-links{display:flex;align-items:center;gap:25px;font-size:.9rem;font-weight:700;color:#29445a}.nav-links>a,.nav-drop>button{padding:26px 0;border:0;background:none;color:inherit;cursor:pointer;font-weight:700}.nav-links>a:hover,.nav-links>a.active,.nav-drop>button:hover{color:var(--blue)}.nav-cta{background:var(--navy)!important;color:#fff!important;padding:11px 17px!important;border-radius:999px;display:flex!important;align-items:center;gap:8px}.nav-cta:hover{background:var(--blue)!important}.nav-drop{position:relative}.mega{position:absolute;top:66px;right:-230px;width:760px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:18px;display:grid;grid-template-columns:repeat(2,1fr);gap:5px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s}.nav-drop:hover .mega{opacity:1;visibility:visible;transform:none}.mega a{padding:12px 13px;border-radius:12px;display:grid;grid-template-columns:38px 1fr;gap:10px;align-items:center}.mega a:hover{background:#f0f7f8}.mega b{display:block;color:#103d60;font-size:.88rem}.mega small{color:#71808a;display:block;font-size:.73rem;line-height:1.25}.mega-icon{width:38px;height:38px;border-radius:11px;background:#e9f4f5;color:#087a87;display:grid;place-items:center}.mega svg,.nav-cta svg,.card-link svg,.btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.9}.menu-btn{display:none;border:0;background:none;padding:9px;color:#173d5c}.menu-btn svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:2}
.hero{background:radial-gradient(circle at 83% 35%,rgba(88,185,71,.18),transparent 28%),radial-gradient(circle at 72% 20%,rgba(0,156,154,.24),transparent 33%),linear-gradient(135deg,#041d34,#073b65 55%,#075d67);color:#fff;overflow:hidden}.hero-grid{min-height:655px;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:9px;text-transform:uppercase;letter-spacing:.14em;font-size:.72rem;font-weight:900;color:#07888a}.hero .eyebrow{color:#9ce7d5}.eyebrow:before{content:"";width:22px;height:2px;background:currentColor}.hero h1{font-size:clamp(3rem,6vw,5.7rem);line-height:.96;letter-spacing:-.055em;margin:15px 0 24px;max-width:760px}.hero h1 span{color:#8fdf70}.hero p{max-width:690px;color:#d7e6ee;font-size:1.08rem}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:31px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:13px 20px;font-weight:850;font-size:.91rem;border:1px solid transparent;cursor:pointer}.btn-primary{background:#fff;color:#063b65}.btn-primary:hover{background:#eaf7f2}.btn-secondary{border-color:rgba(255,255,255,.34);color:#fff;background:rgba(255,255,255,.06)}.btn-secondary:hover{background:rgba(255,255,255,.13)}.btn-brand{background:var(--navy);color:#fff}.hero-trust{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px 20px;color:#d8e7ee;font-size:.82rem}.trust-item{display:flex;align-items:center;gap:8px}.trust-dot{width:8px;height:8px;border-radius:50%;background:#74d957;box-shadow:0 0 0 4px rgba(116,217,87,.13)}
.device-stage{position:relative;min-height:500px}.device-orbit{position:absolute;inset:4% 2%;border-radius:50%;border:1px solid rgba(255,255,255,.18)}.device-orbit:after{content:"";position:absolute;inset:13%;border-radius:50%;border:1px solid rgba(255,255,255,.1)}.device-main{position:absolute;right:8%;top:8%;width:71%;height:64%;display:grid;place-items:center;filter:drop-shadow(0 35px 35px rgba(0,0,0,.25))}.device-main img{width:100%;height:100%;object-fit:contain}.device-card{position:absolute;background:rgba(255,255,255,.96);border:1px solid rgba(255,255,255,.7);border-radius:18px;box-shadow:var(--shadow);padding:14px;color:#163a55}.device-card img{object-fit:contain}.device-card.nvr{left:0;bottom:12%;width:50%;height:145px}.device-card.access{right:2%;bottom:2%;width:30%;height:170px}.device-card img{width:100%;height:100%}.source-pill{position:absolute;right:9%;top:4%;background:#fff;color:#173f5e;border-radius:999px;padding:8px 12px;font-size:.7rem;font-weight:900;box-shadow:var(--shadow-sm)}
.section{padding:88px 0}.section.soft{background:var(--soft)}.section.dark{background:#062641;color:#fff}.section-head{display:grid;grid-template-columns:1fr .75fr;gap:45px;align-items:end;margin-bottom:36px}.section-title{font-size:clamp(2rem,4.1vw,3.65rem);line-height:1.04;letter-spacing:-.045em;color:#07375f;margin:9px 0 0}.dark .section-title{color:#fff}.section-copy{color:#6b7b84;margin:0;max-width:620px}.dark .section-copy{color:#b9cdd9}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.product-card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;transition:.2s;display:flex;flex-direction:column;min-height:100%}.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#cbdce4}.product-image{height:215px;background:linear-gradient(145deg,#f8fbfc,#eef4f6);display:grid;place-items:center;padding:20px;position:relative;overflow:hidden}.product-image:before{content:"";position:absolute;width:180px;height:180px;border-radius:50%;background:rgba(0,156,154,.07)}.product-image img{width:100%;height:100%;object-fit:contain;position:relative;z-index:1;filter:drop-shadow(0 12px 17px rgba(6,45,73,.15))}.product-image.img-failed:after{content:"Dahua product image";position:relative;z-index:2;color:#66808f;font-weight:800;font-size:.78rem}.product-body{padding:22px;display:flex;flex-direction:column;flex:1}.product-kicker{text-transform:uppercase;font-size:.67rem;letter-spacing:.12em;font-weight:900;color:#078b86}.product-card h3{color:#07375f;font-size:1.22rem;margin:7px 0 9px;line-height:1.15}.product-card p{color:#697982;font-size:.88rem;margin:0 0 18px}.card-link{margin-top:auto;display:flex;align-items:center;gap:7px;color:var(--blue);font-weight:850;font-size:.84rem}.image-credit{font-size:.7rem;color:#8a969d;margin-top:15px}.image-credit a{text-decoration:underline}
.feature-split{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:center}.feature-copy h2{font-size:clamp(2.1rem,4.5vw,4rem);line-height:1;letter-spacing:-.045em;color:#07375f;margin:12px 0 18px}.feature-copy p{color:#657681}.feature-points{display:grid;gap:13px;margin-top:24px}.feature-point{display:grid;grid-template-columns:44px 1fr;gap:13px;align-items:start}.feature-icon{width:44px;height:44px;border-radius:13px;background:#eaf5f3;color:#087f7e;display:grid;place-items:center;font-weight:950}.feature-point b{display:block;color:#173f5e;margin-bottom:2px}.feature-point span{color:#71808a;font-size:.86rem}.product-collage{background:linear-gradient(145deg,#e9f4f5,#f8fbfc);border-radius:28px;min-height:470px;position:relative;overflow:hidden;border:1px solid #d8e7ea}.collage-img{position:absolute;background:#fff;border-radius:20px;padding:13px;box-shadow:var(--shadow);display:grid;place-items:center}.collage-img img{width:100%;height:100%;object-fit:contain}.collage-img.a{width:47%;height:55%;left:6%;top:7%}.collage-img.b{width:37%;height:41%;right:5%;top:14%}.collage-img.c{width:43%;height:34%;right:12%;bottom:6%}.collage-label{position:absolute;left:7%;bottom:9%;padding:11px 14px;border-radius:15px;background:#063b65;color:#fff;font-size:.78rem;font-weight:850}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0}.step{padding:22px 17px;position:relative}.step:not(:last-child):after{content:"";position:absolute;top:40px;right:-8px;width:16px;border-top:1px dashed #8cabb9}.step-num{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#e9f5f4;color:#087b7d;font-weight:950}.step h3{font-size:1rem;color:#113d5e;margin:15px 0 7px}.step p{font-size:.82rem;color:#708089;margin:0}.industry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.industry-card{background:linear-gradient(145deg,#0c3d65,#0a5964);border-radius:22px;padding:27px;min-height:230px;position:relative;overflow:hidden;color:#fff}.industry-card:after{content:"";position:absolute;width:150px;height:150px;border:1px solid rgba(255,255,255,.14);border-radius:50%;right:-38px;bottom:-38px}.industry-card .num{font-size:.7rem;font-weight:900;color:#91dfca;letter-spacing:.1em}.industry-card h3{font-size:1.45rem;margin:35px 0 8px}.industry-card p{color:#c9dae3;font-size:.87rem;margin:0}.industry-card a{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:850;font-size:.84rem;margin-top:19px}.cta{background:var(--grad);border-radius:28px;padding:49px;color:#fff;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;position:relative;overflow:hidden}.cta:after{content:"";position:absolute;width:310px;height:310px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-110px;top:-160px}.cta h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1.04;letter-spacing:-.035em;margin:0 0 10px}.cta p{margin:0;color:#e3f4f3;max-width:730px}.cta .btn{background:#fff;color:#073b65;position:relative;z-index:2}
.page-hero{background:linear-gradient(135deg,#f4f8fa,#e9f4f4);padding:72px 0 58px;border-bottom:1px solid #dde7eb}.page-hero-grid{display:grid;grid-template-columns:1fr .85fr;gap:48px;align-items:center}.page-hero h1{font-size:clamp(2.8rem,5vw,5rem);line-height:.98;letter-spacing:-.05em;color:#07375f;margin:12px 0 19px}.page-hero p{font-size:1.05rem;color:#657781;max-width:670px}.page-device{height:360px;display:grid;place-items:center;position:relative}.page-device:before{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:linear-gradient(145deg,rgba(0,91,170,.11),rgba(88,185,71,.14))}.page-device img{position:relative;width:92%;height:92%;object-fit:contain;filter:drop-shadow(0 25px 25px rgba(9,50,78,.14))}.breadcrumb{font-size:.78rem;color:#768790;margin-bottom:10px}.breadcrumb a{color:var(--blue)}
.catalog{display:grid;gap:24px}.catalog-row{border:1px solid var(--line);border-radius:26px;background:#fff;display:grid;grid-template-columns:330px 1fr;min-height:320px;overflow:hidden;scroll-margin-top:110px}.catalog-media{background:linear-gradient(145deg,#f6fafb,#eaf3f5);display:grid;place-items:center;padding:30px;position:relative}.catalog-media img{width:100%;height:250px;object-fit:contain;filter:drop-shadow(0 16px 20px rgba(5,54,84,.16))}.catalog-info{padding:34px}.catalog-info h2{color:#07375f;font-size:2rem;line-height:1.08;margin:8px 0 11px}.catalog-info p{color:#667681}.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.chip{padding:7px 10px;border-radius:999px;background:#eaf5f4;color:#0d716f;font-size:.73rem;font-weight:850}.model-note{font-size:.74rem;color:#80909a;border-top:1px solid #e5ecef;padding-top:13px;margin-top:20px}.model-note a{color:var(--blue);text-decoration:underline}.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.service-card{border:1px solid var(--line);border-radius:22px;background:#fff;padding:27px}.service-num{font-size:2.4rem;line-height:1;font-weight:950;color:#d7e8eb}.service-card h3{color:#07375f;margin:13px 0 7px}.service-card p{color:#6b7b84;font-size:.89rem}.service-card ul{padding-left:18px;color:#667681;font-size:.84rem}.solution-list{display:grid;gap:18px}.solution-row{display:grid;grid-template-columns:.75fr 1.25fr;gap:35px;border:1px solid var(--line);border-radius:25px;padding:32px;background:#fff;align-items:center}.solution-row h2{color:#07375f;font-size:1.8rem;margin:6px 0 11px}.solution-row p{color:#667681}.solution-visual{height:250px;background:linear-gradient(145deg,#eef7f6,#f8fbfc);border-radius:19px;display:flex;align-items:center;justify-content:center;gap:10px;padding:20px;overflow:hidden}.solution-visual img{max-width:48%;max-height:100%;object-fit:contain;filter:drop-shadow(0 12px 14px rgba(9,49,77,.13))}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.about-grid h2{font-size:clamp(2rem,4vw,3.7rem);line-height:1.02;color:#07375f;margin:10px 0 18px}.about-grid p{color:#657681}.values{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.value{border:1px solid var(--line);border-radius:22px;padding:26px;background:#fff}.value b{display:block;color:#07375f;margin-bottom:8px}.value span{font-size:.87rem;color:#6d7d86}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}.contact-panel{border-radius:26px;background:#07375f;color:#fff;padding:34px}.contact-panel h2{font-size:2rem;margin-top:0}.contact-panel p{color:#c7d9e5}.contact-list{display:grid;gap:15px;margin-top:24px}.contact-item b{display:block}.contact-item a,.contact-item span{color:#d6e3ea;font-size:.88rem}.form-card{border:1px solid var(--line);border-radius:26px;padding:34px;box-shadow:var(--shadow-sm)}.form-card h2{color:#07375f;margin-top:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:.83rem;font-weight:800;color:#465c69}.field input,.field select,.field textarea{width:100%;border:1px solid #cbd8df;border-radius:12px;padding:12px 13px;background:#fff;outline:none}.field textarea{min-height:135px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:#159d99;box-shadow:0 0 0 4px rgba(0,156,154,.08)}.hp{position:absolute!important;left:-9999px!important}.form-status{font-size:.87rem;margin-top:13px}.form-status.ok{color:#187b3a}.form-status.err{color:#ac3030}.privacy{max-width:850px}.privacy h2{color:#07375f;margin-top:32px}.privacy p,.privacy li{color:#5f6f79}
.footer{background:#061f35;color:#cbdbe5}.footer-main{padding:57px 0;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:42px}.footer-logo{background:#fff;border-radius:13px;display:inline-block;padding:8px 10px}.footer-logo img{height:49px;width:auto}.footer-brand p{max-width:370px;color:#a9bfcc;font-size:.87rem}.footer h4{color:#fff;margin:0 0 14px}.footer a{display:block;color:#b8cbd6;font-size:.86rem;margin:7px 0}.footer a:hover{color:#fff}.footer-note{font-size:.72rem;color:#8da8b8;margin-top:15px}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:17px 0;display:flex;justify-content:space-between;gap:22px;font-size:.76rem;color:#8ea8b7}.whatsapp{position:fixed;right:22px;bottom:22px;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:#20b858;color:#fff;box-shadow:0 12px 30px rgba(0,0,0,.22);z-index:45;font-weight:950;font-size:1.1rem}.error-page{min-height:60vh;display:grid;place-items:center;text-align:center;padding:70px 20px}.error-page h1{font-size:6rem;line-height:1;color:#07375f;margin:0}.error-page p{color:#6b7b84}.notice{border-left:4px solid var(--green);background:#f0f8f2;padding:14px 17px;border-radius:10px;color:#3f654a;font-size:.86rem}
@media(max-width:1050px){.nav-links{display:none}.menu-btn{display:block}.nav.open .nav-links{display:flex;position:absolute;left:-20px;right:-20px;top:77px;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:16px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm)}.nav.open .nav-links>a,.nav.open .nav-drop>button{padding:13px 4px;text-align:left;width:100%}.nav.open .mega{position:static;right:auto;top:auto;width:100%;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;border-radius:0;display:none;padding:5px 0;grid-template-columns:1fr}.nav.open .nav-drop.open .mega{display:grid}.nav.open .nav-drop:hover .mega{display:none}.nav.open .nav-drop.open:hover .mega{display:grid}.hero-grid,.feature-split,.page-hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}.device-stage{max-width:720px;width:100%;margin:auto}.product-grid{grid-template-columns:repeat(2,1fr)}.industry-grid,.services-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(3,1fr)}.step:nth-child(3):after{display:none}.catalog-row{grid-template-columns:270px 1fr}.solution-row{grid-template-columns:1fr}.footer-main{grid-template-columns:1.5fr 1fr 1fr}.footer-main>div:last-child{grid-column:2/-1}}
@media(max-width:720px){.container{width:min(100% - 28px,1180px)}.topbar{display:none}.nav{min-height:70px}.brand img{height:47px}.nav.open .nav-links{top:70px}.hero-grid{min-height:auto;padding:60px 0 45px;gap:25px}.hero h1{font-size:clamp(2.8rem,13vw,4.6rem)}.device-stage{min-height:410px}.device-main{width:76%;right:4%}.device-card.nvr{width:53%;height:120px}.device-card.access{height:145px;width:31%}.section{padding:65px 0}.section-head{display:block}.section-copy{margin-top:12px}.product-grid,.industry-grid,.services-grid,.values{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}.step:nth-child(odd):after{display:block}.step:nth-child(even):after{display:none}.catalog-row{grid-template-columns:1fr}.catalog-media{min-height:275px}.catalog-media img{height:220px}.catalog-info{padding:25px}.solution-row{padding:22px}.cta{grid-template-columns:1fr;padding:34px 25px}.footer-main{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-main>div:last-child{grid-column:auto}.footer-bottom{flex-direction:column}.form-grid{grid-template-columns:1fr}.field.full{grid-column:1}.page-device{height:290px}.hero-actions .btn{width:100%}}
@media(max-width:480px){.hero-trust,.steps,.footer-main{grid-template-columns:1fr}.step:after{display:none!important}.footer-main>div:last-child{grid-column:auto}.product-collage{min-height:400px}.collage-img.a{width:54%;height:48%}.collage-img.b{width:40%;height:37%}.collage-img.c{width:47%;height:29%}.source-pill{font-size:.62rem}.product-image{height:190px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* v3: separate product-category pages */
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.category-card{display:grid;grid-template-columns:64px 1fr;gap:18px;padding:27px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:var(--shadow-sm);transition:.2s ease}.category-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.category-icon{width:58px;height:58px;border-radius:16px;background:linear-gradient(145deg,#e8f3f7,#e9f8ef);display:grid;place-items:center}.category-icon svg{width:30px;height:30px;stroke:#087a82;fill:none;stroke-width:1.8}.category-card h2{font-size:1.35rem;color:#07375f;margin:0 0 8px}.category-card p{font-size:.88rem;color:#6a7b84;margin:0 0 12px}.text-link{font-size:.82rem;font-weight:850;color:var(--blue)}.mini-stack{display:grid;gap:12px}.mini-stack>div{border:1px solid var(--line);background:#fff;border-radius:17px;padding:18px 20px}.mini-stack b{display:block;color:#07375f;margin-bottom:5px}.mini-stack span{font-size:.84rem;color:#6a7b84}.product-detail-hero .page-device{min-height:380px}.detail-device img{max-height:335px;object-fit:contain}.product-duo{display:grid;grid-template-columns:1fr 1fr;gap:16px;width:100%;align-items:center}.product-duo img{width:100%;height:260px!important}.detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.detail-card{border:1px solid var(--line);border-radius:21px;padding:24px;background:#fff}.detail-kicker{font-size:.69rem;text-transform:uppercase;letter-spacing:.11em;font-weight:900;color:#14988e}.detail-card h3{color:#07375f;font-size:1.12rem;margin:10px 0 8px}.detail-card p{color:#687983;font-size:.84rem;margin:0}.detail-split{display:grid;grid-template-columns:.85fr 1.15fr;gap:52px;align-items:start}.detail-split h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1.02;color:#07375f;margin:10px 0 16px}.detail-split>div>p{color:#657681}.system-list{display:grid;gap:12px}.system-item{display:grid;grid-template-columns:46px 1fr;gap:15px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.system-num{font-size:.72rem;font-weight:950;color:#39a986;padding-top:2px}.system-item b{color:#07375f}.system-item p{margin:4px 0 0;color:#6c7c85;font-size:.83rem}.eyebrow.light{color:#b7f0dc}.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.notice{margin-top:22px}.footer-main{grid-template-columns:1.35fr 1.2fr .85fr .85fr}.footer-main>div:nth-child(2) a{line-height:1.25;margin:9px 0}
@media(max-width:1050px){.detail-grid{grid-template-columns:repeat(2,1fr)}.detail-split{grid-template-columns:1fr}.footer-main{grid-template-columns:1.4fr 1fr 1fr}.footer-main>div:last-child{grid-column:auto}}
@media(max-width:720px){.category-grid,.detail-grid{grid-template-columns:1fr}.product-duo{grid-template-columns:1fr}.product-duo img{height:190px!important}.footer-main{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:480px){.category-card{grid-template-columns:48px 1fr;padding:20px}.category-icon{width:46px;height:46px}.footer-main{grid-template-columns:1fr}.footer-brand{grid-column:auto}}

/* v4 SOLFET */
.brand picture,.footer-logo picture{display:block}.brand img{height:55px;width:auto}.footer-logo img{height:50px;width:auto}.source-pill-light{top:12px;right:12px;color:#17435f;background:rgba(255,255,255,.92)}.home-category-grid{grid-template-columns:repeat(4,1fr)}.modern-dome{background:rgba(255,255,255,.97)}.project-stack{position:relative;min-height:390px}.product-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%;align-items:center}.product-trio img{width:100%;height:185px!important;object-fit:contain}.project-stack>img{position:absolute;object-fit:contain;filter:drop-shadow(0 20px 22px rgba(4,45,79,.14))}.project-stack>img:nth-child(1){width:58%;height:58%;right:4%;top:8%}.project-stack>img:nth-child(2){width:42%;height:42%;left:4%;bottom:4%;background:#fff;border-radius:20px;padding:18px;box-shadow:var(--shadow-sm)}.project-stack>img:nth-child(3){width:32%;height:36%;right:4%;bottom:1%;background:#fff;border-radius:20px;padding:15px;box-shadow:var(--shadow-sm)}
.category-card-visual{grid-template-columns:155px 1fr;align-items:center}.category-thumb{height:135px;background:linear-gradient(145deg,#f8fbfc,#edf5f6);border-radius:18px;display:grid;place-items:center;padding:15px;overflow:hidden}.category-thumb img{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 10px 12px rgba(4,45,79,.13))}.reference-card{margin-top:25px;border:1px solid var(--line);border-radius:20px;padding:23px;background:#fff}.reference-card>span{font-size:.68rem;text-transform:uppercase;letter-spacing:.12em;font-weight:900;color:#118d87}.reference-card h3{color:#07375f;margin:7px 0}.reference-card p{font-size:.86rem;color:#667681}.reference-card a{font-size:.82rem;font-weight:850;color:var(--blue)}.reference-card small{display:block;color:#89979f;margin-top:13px;line-height:1.4}.application-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.application-grid span{border:1px solid var(--line);border-radius:15px;background:#fff;padding:17px 18px;color:#31526a;font-weight:800;font-size:.86rem}.steps.compact .step p{color:#a9bfcc}.page-device.detail-device{position:relative}.page-device.detail-device>img{width:100%;height:330px;object-fit:contain}.btn-outline{border:1px solid #b8cbd6;color:#17435f;background:#fff}.soft .detail-card{background:#fff}.model-note a,.reference-card a{text-decoration:none}.product-image img,.category-thumb img,.page-device img,.device-stage img{content-visibility:auto}
@media(max-width:1050px){.home-category-grid{grid-template-columns:repeat(2,1fr)}.application-grid{grid-template-columns:repeat(2,1fr)}.category-card-visual{grid-template-columns:125px 1fr}}
@media(max-width:720px){.product-trio{grid-template-columns:repeat(2,1fr)}.product-trio img{height:150px!important}.home-category-grid{grid-template-columns:1fr}.category-card-visual{grid-template-columns:1fr}.category-thumb{height:190px}.application-grid{grid-template-columns:1fr 1fr}.project-stack{min-height:330px}.brand img{height:47px}.footer-logo img{height:45px}}
@media(max-width:480px){.application-grid{grid-template-columns:1fr}.project-stack{min-height:290px}}


/* v9: client/project identity + modern footer slider */
.client-showcase{position:relative;background:linear-gradient(180deg,#fff 0%,#f5f9fa 100%);overflow:hidden}.client-showcase:before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(0,156,154,.10),rgba(0,156,154,0) 68%);right:-180px;top:-200px;pointer-events:none}.client-head{position:relative;z-index:1}.client-head>div:last-child{align-self:end}.client-project-link{display:inline-flex;margin-top:13px}.client-logo-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;position:relative;z-index:1}.client-logo-card{border:1px solid #dbe6eb;background:rgba(255,255,255,.94);border-radius:20px;padding:18px;min-height:180px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 8px 28px rgba(4,45,79,.06);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}.client-logo-card:hover{transform:translateY(-4px);box-shadow:0 18px 45px rgba(4,45,79,.12);border-color:#bfd6df}.client-logo-media{height:105px;display:grid;place-items:center;padding:5px 9px}.client-logo-media img{width:100%;height:100%;object-fit:contain}.client-logo-meta{border-top:1px solid #edf2f5;padding-top:12px;display:flex;flex-direction:column;gap:3px}.client-logo-meta strong{color:#0b3d61;font-size:.9rem}.client-logo-meta span{color:#7a8991;font-size:.73rem}.project-client-section{padding-top:72px}.project-logo-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.project-card-logo{height:76px;border-bottom:1px solid #eef3f5;margin:-6px -2px 15px;padding:0 0 12px;display:flex;align-items:center}.project-card-logo img{max-width:190px;width:auto;height:62px;object-fit:contain;object-position:left center}.footer{position:relative;overflow:hidden}.footer-partners{border-bottom:1px solid rgba(255,255,255,.1);padding:25px 0 26px;background:linear-gradient(90deg,rgba(0,59,115,.56),rgba(0,156,154,.20),rgba(88,185,71,.11))}.footer-partners-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;color:#d8e9f2;font-size:.78rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.footer-partners-head a{color:#9ee4ca;text-transform:none;letter-spacing:0;font-size:.78rem}.partner-marquee{overflow:hidden;position:relative;mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent)}.partner-track{display:flex;width:max-content;animation:partnerScroll 34s linear infinite}.partner-set{display:flex;gap:12px;padding-right:12px}.partner-slide{width:190px;height:82px;border-radius:14px;background:#fff;display:grid;place-items:center;padding:10px 14px;box-shadow:0 8px 22px rgba(0,0,0,.11)}.partner-slide img{width:100%;height:100%;object-fit:contain}.partner-marquee:hover .partner-track{animation-play-state:paused}@keyframes partnerScroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}.footer-main{padding-top:48px}.page-hero{position:relative;overflow:hidden}.page-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(0,156,154,.09),transparent 32%);pointer-events:none}.detail-card,.product-card,.category-card,.industry-card,.reference-card,.system-item{transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}.detail-card:hover,.reference-card:hover,.system-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);border-color:#c9dce4}
@media(max-width:1050px){.client-logo-grid,.project-logo-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:720px){.client-logo-grid,.project-logo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.client-logo-card{min-height:155px;padding:14px}.client-logo-media{height:85px}.partner-slide{width:165px;height:74px}.footer-partners-head{gap:15px}}
@media(max-width:480px){.client-logo-grid,.project-logo-grid{grid-template-columns:1fr 1fr;gap:10px}.client-logo-card{border-radius:16px;min-height:145px}.client-logo-meta strong{font-size:.8rem}.client-logo-meta span{display:none}.partner-slide{width:150px;height:68px}}
@media(prefers-reduced-motion:reduce){.partner-track{animation:none!important}.partner-set[aria-hidden="true"]{display:none}}


/* v10: authorized distributor lockup, stronger hierarchy, and responsive polish */
:root{--surface:#ffffff;--surface-soft:#f5f9fb;--ring:0 0 0 4px rgba(0,156,154,.10)}
body{background:linear-gradient(180deg,#fff 0,#fff 72%,#fbfdfe 100%)}
.header{box-shadow:0 8px 28px rgba(4,45,79,.045)}
.nav{min-height:84px;gap:20px}.nav-links{gap:18px}.brand-lockup{display:flex;align-items:center;gap:14px;min-width:320px}.brand{display:flex;align-items:center}.brand img{height:53px}.brand-separator{width:1px;height:44px;background:linear-gradient(180deg,transparent,#c9d9e1,transparent)}.dahua-authorised{width:160px;display:flex;align-items:center;justify-content:center}.dahua-authorised img{width:100%;height:auto;max-height:52px;object-fit:contain;filter:drop-shadow(0 5px 10px rgba(0,0,0,.05))}.nav-cta{box-shadow:0 8px 22px rgba(0,59,115,.16)}
.hero{position:relative}.hero:after{content:"";position:absolute;inset:auto -12% -42% 42%;height:430px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.09),transparent 64%);pointer-events:none}.hero-grid{position:relative;z-index:1}.hero h1{max-width:800px}.hero p{font-size:1.04rem;line-height:1.75}.hero-actions .btn{min-height:48px}.hero-trust{margin-top:4px}
.section-title{max-width:850px}.product-card,.detail-card,.category-card,.industry-card,.service-card,.reference-card,.client-logo-card{border-color:#dbe6ec}.product-card,.category-card,.detail-card,.service-card,.reference-card{box-shadow:0 8px 30px rgba(4,45,79,.045)}.product-card:hover,.category-card:hover,.detail-card:hover,.service-card:hover,.reference-card:hover{box-shadow:0 22px 55px rgba(4,45,79,.12)}
.page-hero{background:linear-gradient(180deg,#f8fbfc 0%,#f2f7f9 100%)}.page-hero-grid{position:relative;z-index:1}.page-hero h1{letter-spacing:-.045em}.page-device{box-shadow:0 18px 55px rgba(4,45,79,.09)}
.footer-main{position:relative}.footer-authorised{grid-column:1/-1;display:grid;grid-template-columns:1fr 300px;gap:35px;align-items:center;background:linear-gradient(120deg,rgba(255,255,255,.08),rgba(255,255,255,.035));border:1px solid rgba(255,255,255,.12);border-radius:22px;padding:22px 26px;margin-bottom:2px}.footer-authorised-label{display:block;color:#91dfca;font-size:.68rem;font-weight:900;letter-spacing:.13em;text-transform:uppercase;margin-bottom:5px}.footer-authorised strong{display:block;color:#fff;font-size:1.22rem}.footer-authorised p{margin:5px 0 0!important;color:#a9bfcc!important;font-size:.82rem!important;max-width:650px!important}.footer-authorised picture{display:flex;justify-content:flex-end}.footer-authorised img{width:100%;max-width:280px;height:auto;max-height:78px;object-fit:contain;background:#fff;border-radius:14px;padding:8px 12px}.footer-logo{box-shadow:0 8px 20px rgba(0,0,0,.12)}
.btn:focus-visible,.nav a:focus-visible,.nav button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;box-shadow:var(--ring)}
@media(max-width:1180px){.nav-links{gap:14px;font-size:.84rem}.brand-lockup{min-width:300px}.dahua-authorised{width:145px}.nav-cta{padding:10px 14px!important}}
@media(max-width:1050px){.brand-lockup{min-width:0}.nav.open .nav-links{top:83px}.dahua-authorised{width:150px}.brand-separator{height:38px}}
@media(max-width:720px){.nav{min-height:74px}.nav.open .nav-links{top:74px}.brand-lockup{gap:9px}.brand img{height:43px}.brand-separator{height:34px}.dahua-authorised{width:115px}.dahua-authorised img{max-height:42px}.footer-authorised{grid-template-columns:1fr;padding:20px}.footer-authorised picture{justify-content:flex-start}.footer-authorised img{max-width:250px}.hero p{font-size:.98rem}}
@media(max-width:430px){.brand img{height:39px}.dahua-authorised{width:95px}.brand-lockup{gap:7px}.brand-separator{height:30px}.menu-btn{padding:5px}.footer-authorised img{max-width:230px}}


/* v11: graphic-rich visual system + local SEO landing pages */
.visual-refresh{background-image:url('../img/graphics/dot-grid.svg');background-size:64px 64px;background-attachment:fixed}.hero,.page-hero{isolation:isolate}.hero:before,.page-hero:after{content:"";position:absolute;inset:0;background-image:url('../img/graphics/circuit-pattern.svg');background-size:240px 240px;opacity:.30;pointer-events:none;z-index:-1}.page-hero:after{opacity:.18}.visual-story{position:relative;overflow:hidden}.visual-story:after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-180px;bottom:-250px;background:radial-gradient(circle,rgba(0,156,154,.12),transparent 67%);pointer-events:none}.visual-story-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:54px;align-items:center}.visual-art-card{background:linear-gradient(145deg,#fff,#f6fafb);border:1px solid #d9e7ed;border-radius:28px;padding:16px;box-shadow:0 18px 55px rgba(4,45,79,.09);position:relative;overflow:hidden}.visual-art-card:before{content:"";position:absolute;inset:0;background:linear-gradient(130deg,rgba(255,255,255,.6),transparent 35%);pointer-events:none}.infographic-image{width:100%;height:auto;display:block}.visual-points{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:25px}.visual-point{display:flex;gap:12px;align-items:flex-start;padding:13px;border:1px solid #dfe9ee;background:#fff;border-radius:15px}.visual-point>span{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(145deg,#e8f5f4,#edf6e8);font-size:.69rem;font-weight:900;color:#0a6c70;flex:0 0 auto}.visual-point strong{display:block;color:#123e5d;font-size:.83rem}.visual-point small{display:block;color:#7a8b95;font-size:.71rem;line-height:1.4;margin-top:2px}.proof-strip{background:linear-gradient(180deg,#f6fafc 0%,#fff 100%)}.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}.proof-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}.proof-metrics>div{background:#fff;border:1px solid #dbe7ec;border-radius:18px;padding:17px;box-shadow:0 9px 28px rgba(4,45,79,.05)}.proof-metrics strong{display:block;font-size:1.85rem;color:#005BAA;letter-spacing:-.05em}.proof-metrics span{display:block;font-size:.72rem;color:#687c89;line-height:1.45;margin-top:3px}.proof-art{background:linear-gradient(145deg,#fff,#f1f9f8)}.local-seo{background:#f5f9fb}.local-seo-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.local-seo-grid a{display:flex;flex-direction:column;gap:10px;text-decoration:none;background:#fff;border:1px solid #dce8ed;border-radius:20px;padding:20px;min-height:190px;transition:.22s ease;box-shadow:0 8px 25px rgba(4,45,79,.04)}.local-seo-grid a:hover{transform:translateY(-4px);box-shadow:0 18px 38px rgba(4,45,79,.10);border-color:#bfd5df}.local-seo-grid svg{width:38px;height:38px;color:#005BAA;fill:none;stroke:currentColor}.local-seo-grid strong{color:#0d3e60;font-size:.93rem}.local-seo-grid span{color:#778892;font-size:.75rem;line-height:1.55}.footer-visual-band{grid-column:1/-1;display:grid;grid-template-columns:54px 1fr auto;gap:16px;align-items:center;border:1px solid rgba(255,255,255,.12);background:linear-gradient(110deg,rgba(0,156,154,.18),rgba(0,59,115,.18));border-radius:20px;padding:17px 19px;margin-bottom:4px}.footer-visual-icon{width:50px;height:50px;border-radius:15px;background:rgba(255,255,255,.09);display:grid;place-items:center}.footer-visual-icon svg{width:29px;height:29px;color:#9ee4ca;fill:none;stroke:currentColor}.footer-visual-band strong{display:block;color:#fff;font-size:.88rem}.footer-visual-band span{display:block;color:#a9bfcc;font-size:.73rem;margin-top:3px}.footer-visual-cta{color:#9ee4ca;text-decoration:none;font-size:.78rem;font-weight:850;white-space:nowrap}.seo-landing-hero .page-hero-grid{grid-template-columns:1fr 1fr;align-items:center}.page-seo-art{padding:10px}.seo-content-grid{display:grid;grid-template-columns:1fr 120px;gap:42px;align-items:center;max-width:980px}.seo-content-icon{width:110px;height:110px;border-radius:28px;display:grid;place-items:center;background:linear-gradient(145deg,#eaf5f7,#edf7e9);border:1px solid #d6e7e9}.seo-content-icon svg{width:55px;height:55px;color:#005BAA;fill:none;stroke:currentColor}.faq-list{display:grid;gap:10px;max-width:940px}.faq-item{border:1px solid #dbe7ec;background:#fff;border-radius:16px;padding:0 18px}.faq-item summary{cursor:pointer;padding:17px 0;color:#123f5d;font-weight:800;font-size:.9rem}.faq-item p{margin:0 0 18px;color:#687c89;font-size:.84rem;line-height:1.7}.reveal{opacity:1;transform:none}.js-reveal .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}.js-reveal .reveal.is-visible{opacity:1;transform:none}.product-card,.detail-card,.industry-card,.client-logo-card,.visual-art-card{backdrop-filter:saturate(1.05)}
@media(max-width:1100px){.local-seo-grid{grid-template-columns:repeat(3,1fr)}.visual-story-grid,.proof-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media(max-width:850px){.visual-story-grid,.proof-grid,.seo-landing-hero .page-hero-grid{grid-template-columns:1fr}.visual-story-copy{order:1}.visual-art-card{order:2}.local-seo-grid{grid-template-columns:repeat(2,1fr)}.proof-metrics{grid-template-columns:repeat(3,1fr)}.seo-content-grid{grid-template-columns:1fr}.seo-content-icon{display:none}.footer-visual-band{grid-template-columns:48px 1fr}.footer-visual-cta{grid-column:2}}
@media(max-width:560px){.visual-points{grid-template-columns:1fr}.proof-metrics{grid-template-columns:1fr}.local-seo-grid{grid-template-columns:1fr}.footer-visual-band{grid-template-columns:42px 1fr;padding:14px}.footer-visual-icon{width:42px;height:42px}.footer-visual-cta{grid-column:1/-1}.visual-art-card{border-radius:20px;padding:8px}.section{overflow:hidden}}
@media(prefers-reduced-motion:reduce){.js-reveal .reveal{opacity:1!important;transform:none!important;transition:none!important}}


/* v12: refined official WhatsApp contact control */
.whatsapp{position:fixed;right:22px;bottom:calc(22px + env(safe-area-inset-bottom));width:auto;height:58px;min-width:58px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:0 19px 0 14px;background:#25D366;color:#fff;box-shadow:0 14px 38px rgba(7,48,31,.28),0 2px 8px rgba(7,48,31,.18);z-index:60;font-weight:850;font-size:.86rem;letter-spacing:-.01em;border:1px solid rgba(255,255,255,.32);transition:transform .2s ease,box-shadow .2s ease,background .2s ease;isolation:isolate}.whatsapp:before{content:"";position:absolute;inset:-5px;border-radius:inherit;border:1px solid rgba(37,211,102,.30);opacity:.7;z-index:-1;transition:opacity .2s ease,transform .2s ease}.whatsapp:hover{background:#1fbd5a;transform:translateY(-3px);box-shadow:0 18px 44px rgba(7,48,31,.34),0 3px 10px rgba(7,48,31,.20)}.whatsapp:hover:before{opacity:1;transform:scale(1.04)}.whatsapp:focus-visible{outline:3px solid rgba(37,211,102,.28);outline-offset:4px;box-shadow:0 14px 38px rgba(7,48,31,.28)}.whatsapp-icon{width:31px;height:31px;display:grid;place-items:center;flex:0 0 31px}.whatsapp-icon img{width:28px;height:28px;display:block}.whatsapp-label{white-space:nowrap;line-height:1}.whatsapp:after{content:"";width:7px;height:7px;border-radius:50%;background:#fff;box-shadow:0 0 0 4px rgba(255,255,255,.16);margin-left:1px}
@media(max-width:640px){.whatsapp{right:16px;bottom:calc(16px + env(safe-area-inset-bottom));width:56px;height:56px;min-width:56px;padding:0;border-radius:50%;gap:0}.whatsapp-label,.whatsapp:after{display:none}.whatsapp-icon{width:30px;height:30px;flex-basis:30px}.whatsapp-icon img{width:29px;height:29px}}
@media(prefers-reduced-motion:reduce){.whatsapp,.whatsapp:before{transition:none!important}.whatsapp:hover{transform:none}}

/* v13: mobile-first Home page refinement and responsive navigation */
html,body{max-width:100%;overflow-x:clip}body{min-width:0}.nav,.hero-grid,.section-head,.feature-split,.proof-grid,.visual-story-grid,.cta,.footer-main{min-width:0}.brand-lockup,.nav-links,.hero-grid>*{min-width:0}.menu-btn{min-width:44px;min-height:44px;display:none;align-items:center;justify-content:center;border-radius:12px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.nav-links a,.nav-drop>button,.btn,.whatsapp{touch-action:manipulation;-webkit-tap-highlight-color:transparent}.section-title,.hero h1,.feature-copy h2,.cta h2{overflow-wrap:anywhere;text-wrap:balance}.section-copy,.hero p,.product-card p,.industry-card p{text-wrap:pretty}

@media(max-width:1050px){
  .menu-btn{display:inline-flex}
  body.nav-menu-open{overflow:hidden}
  .nav.open .nav-links{position:fixed;left:0;right:0;top:83px;bottom:0;width:100%;max-height:calc(100dvh - 83px);overflow-y:auto;overscroll-behavior:contain;padding:14px max(18px,calc((100vw - 1180px)/2));background:rgba(255,255,255,.99);border-top:1px solid var(--line);border-bottom:0;box-shadow:0 18px 40px rgba(4,45,79,.13);z-index:80}
  .nav.open .nav-links>a,.nav.open .nav-drop>button{min-height:48px;padding:13px 6px;border-bottom:1px solid #edf3f6;font-size:.96rem}
  .nav.open .mega{padding:6px 0 10px}
  .nav.open .mega a{padding:12px 7px;grid-template-columns:42px 1fr;border-bottom:1px solid #f1f5f7;border-radius:0}
  .nav.open .mega small{font-size:.76rem;line-height:1.4}
}

@media(max-width:720px){
  .container{width:min(100% - 28px,1180px)}
  .header{backdrop-filter:blur(18px)}
  .nav{min-height:72px;gap:10px}
  .brand-lockup{flex:1;gap:8px;overflow:hidden}
  .brand{flex:0 1 auto;min-width:0}
  .brand img{height:40px;max-width:118px}
  .brand-separator{height:31px;flex:0 0 1px}
  .dahua-authorised{width:105px;min-width:0;flex:0 1 105px}
  .dahua-authorised img{max-width:100%;max-height:39px}
  .menu-btn{flex:0 0 44px;padding:8px}
  .nav.open .nav-links{top:72px;max-height:calc(100dvh - 72px)}

  .hero{position:relative}
  .hero-grid{padding:44px 0 34px;gap:22px;min-height:0}
  .hero .eyebrow{font-size:.65rem;letter-spacing:.11em;line-height:1.35}
  .hero h1{font-size:clamp(2.22rem,10.8vw,3.15rem);line-height:1.01;letter-spacing:-.042em;margin:12px 0 17px;max-width:100%}
  .hero p{font-size:.96rem;line-height:1.65;margin:0;max-width:100%}
  .hero-actions{margin:23px 0 20px;gap:10px}
  .hero-actions .btn{width:100%;min-height:48px;padding:13px 17px}
  .hero-trust{grid-template-columns:1fr 1fr;gap:9px 12px;font-size:.76rem}
  .trust-item{align-items:flex-start;line-height:1.35}
  .trust-dot{margin-top:4px;flex:0 0 8px}

  .device-stage{display:grid;grid-template-columns:1fr 1fr;gap:10px;min-height:0;width:100%;max-width:520px;margin:5px auto 0;padding:12px;border:1px solid rgba(255,255,255,.15);border-radius:24px;background:linear-gradient(145deg,rgba(255,255,255,.09),rgba(255,255,255,.035));box-shadow:0 22px 55px rgba(0,0,0,.16)}
  .device-orbit{display:none}
  .device-main{position:relative;inset:auto;right:auto;top:auto;width:100%;height:245px;grid-column:1/-1;background:rgba(255,255,255,.97);border-radius:18px;padding:13px;filter:none;overflow:hidden}
  .device-main img{filter:drop-shadow(0 16px 20px rgba(3,35,59,.19))}
  .device-card,.device-card.nvr,.device-card.access{position:relative;inset:auto;left:auto;right:auto;top:auto;bottom:auto;width:100%;height:118px;padding:8px;border-radius:16px;box-shadow:0 9px 26px rgba(1,29,49,.16)}
  .device-card img{filter:drop-shadow(0 8px 10px rgba(4,45,79,.12))}

  .section{padding:56px 0}
  .section-head{margin-bottom:25px}
  .section-title{font-size:clamp(1.85rem,8.4vw,2.55rem);line-height:1.08;letter-spacing:-.035em}
  .section-copy{font-size:.94rem;line-height:1.65}
  .proof-grid,.feature-split,.visual-story-grid{gap:28px}
  .proof-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:20px}
  .proof-metrics>div{padding:14px 10px;border-radius:15px;text-align:center}
  .proof-metrics strong{font-size:1.48rem}
  .proof-metrics span{font-size:.66rem;line-height:1.35}
  .visual-art-card{border-radius:20px;padding:9px}

  .home-category-grid{gap:14px}
  .home-category-grid .product-card{border-radius:20px}
  .home-category-grid .product-image{height:175px;padding:15px}
  .home-category-grid .product-body{padding:18px}
  .home-category-grid .product-card h3{font-size:1.12rem;line-height:1.2}
  .home-category-grid .product-card p{font-size:.84rem;line-height:1.55}

  .feature-copy h2{font-size:clamp(1.95rem,8.6vw,2.7rem);line-height:1.06}
  .feature-point{grid-template-columns:40px 1fr;gap:11px}
  .feature-icon{width:40px;height:40px;border-radius:12px}
  .product-collage{min-height:350px;border-radius:22px}
  .collage-img{padding:9px;border-radius:15px}
  .collage-label{left:6%;bottom:5%;font-size:.7rem;padding:9px 11px}

  .steps{grid-template-columns:1fr;gap:8px}
  .step{padding:16px 15px 16px 54px;border:1px solid rgba(255,255,255,.12);border-radius:16px;background:rgba(255,255,255,.035)}
  .step:after{display:none!important}
  .step-num{position:absolute;left:13px;top:17px;width:31px;height:31px}
  .step h3{margin:0 0 5px;font-size:.96rem}.dark .step h3{color:#fff}
  .step p{font-size:.78rem;line-height:1.55}

  .industry-grid{gap:13px}
  .industry-card{min-height:0;padding:22px;border-radius:19px}
  .industry-card h3{font-size:1.28rem;margin:22px 0 7px}
  .industry-card p{font-size:.83rem;line-height:1.55}
  .industry-card a{margin-top:14px}

  .cta{padding:29px 21px;border-radius:22px;gap:19px}
  .cta h2{font-size:clamp(1.8rem,8vw,2.4rem);line-height:1.08;margin:8px 0 10px}
  .cta p{font-size:.9rem;line-height:1.6}
  .cta .btn{width:100%;min-height:48px;background:#fff;color:#07375f}

  .visual-points{gap:9px}
  .visual-point{padding:11px;border-radius:14px}
  .visual-point>span{width:31px;height:31px}

  .client-showcase{padding-bottom:48px}
  .client-logo-grid{grid-template-columns:1fr 1fr;gap:10px}
  .client-logo-card{min-height:137px;padding:11px;border-radius:16px}
  .client-logo-media{height:78px;padding:3px 5px}
  .client-logo-meta{padding-top:9px}
  .client-logo-meta strong{font-size:.76rem;line-height:1.25}
  .client-logo-meta span{display:none}

  .local-seo-grid a{min-height:0;padding:17px;border-radius:17px;gap:8px}
  .local-seo-grid svg{width:32px;height:32px}

  .footer-partners{padding:20px 0}
  .footer-partners-head{align-items:flex-start;flex-direction:column;margin-bottom:11px;gap:4px}
  .partner-slide{width:145px;height:65px;padding:8px 11px}
  .footer-main{padding:42px 0;gap:27px}
  .footer-authorised{padding:17px;border-radius:18px}
  .footer-authorised strong{font-size:1.04rem}
  .footer-authorised img{max-width:215px}
  .footer-visual-band{grid-template-columns:42px 1fr;padding:14px;border-radius:16px}
  .footer-visual-cta{grid-column:1/-1}
  .footer-bottom{gap:10px;padding:15px 0;font-size:.72rem}
}

@media(max-width:480px){
  .container{width:calc(100% - 24px)}
  .nav{min-height:68px}
  .brand-lockup{gap:6px}
  .brand img{height:36px;max-width:102px}
  .brand-separator{height:27px}
  .dahua-authorised{width:88px;flex-basis:88px}
  .dahua-authorised img{max-height:34px}
  .nav.open .nav-links{top:68px;max-height:calc(100dvh - 68px);padding-left:14px;padding-right:14px}
  .hero-grid{padding-top:36px}
  .hero h1{font-size:clamp(2.02rem,10.5vw,2.55rem)}
  .hero-trust{grid-template-columns:1fr;gap:7px}
  .device-stage{grid-template-columns:1fr 1fr;padding:9px;border-radius:20px}
  .device-main{height:210px;padding:10px}
  .device-card,.device-card.nvr,.device-card.access{height:101px;padding:6px}
  .proof-metrics{grid-template-columns:1fr;gap:8px}
  .proof-metrics>div{text-align:left;display:grid;grid-template-columns:58px 1fr;align-items:center;gap:8px;padding:12px 14px}
  .proof-metrics strong{font-size:1.38rem}
  .section{padding:49px 0}
  .home-category-grid .product-image{height:160px}
  .product-collage{min-height:310px}
  .client-logo-grid{grid-template-columns:1fr 1fr}
  .client-logo-card{min-height:125px;padding:9px}.client-logo-media{height:72px}.client-logo-meta strong{font-size:.72rem}
  .whatsapp{right:12px;bottom:calc(12px + env(safe-area-inset-bottom));width:54px;height:54px;min-width:54px}
}

@media(max-width:360px){
  .container{width:calc(100% - 20px)}
  .brand img{height:33px;max-width:94px}
  .dahua-authorised{width:76px;flex-basis:76px}.dahua-authorised img{max-height:31px}
  .menu-btn{flex-basis:42px;min-width:42px;min-height:42px}
  .hero h1{font-size:1.95rem}
  .device-main{height:190px}.device-card,.device-card.nvr,.device-card.access{height:92px}
  .client-logo-grid{grid-template-columns:1fr}
  .client-logo-card{display:grid;grid-template-columns:105px 1fr;align-items:center;gap:9px;min-height:0}.client-logo-media{height:64px}.client-logo-meta{border-top:0;border-left:1px solid #edf2f5;padding:0 0 0 10px}.client-logo-meta span{display:block;font-size:.65rem;line-height:1.35}
}

/* v17 mobile navigation hardening */

.menu-label{display:none}
@media(max-width:1050px){
  .menu-btn{display:inline-flex!important;align-items:center;justify-content:center;gap:7px;position:relative;z-index:1003}
  .menu-label{display:inline;font-size:.72rem;font-weight:900;letter-spacing:.04em;text-transform:uppercase}
  .nav.open .nav-links{display:flex!important;position:fixed!important;left:0!important;right:0!important;bottom:0!important;width:100%!important;max-height:none!important;overflow-y:auto!important;z-index:1002!important;background:#fff!important}
}
@media(max-width:767px){.menu-label{display:none}.nav.open .nav-links{top:var(--mobile-nav-top,68px)!important}}

/* v18: iPhone/Safari-safe mobile navigation panel */
.mobile-nav-panel,.mobile-nav-backdrop{display:none}
@media(max-width:1050px){
  /* Keep the desktop nav hidden; mobile navigation is moved to body by JS so
     Safari cannot clip it inside the sticky/backdrop-filter header. */
  .nav-links{display:none!important}
  .header{z-index:5000!important}
  .menu-btn{display:inline-flex!important;position:relative!important;z-index:5002!important;cursor:pointer}
  .mobile-nav-backdrop{display:block;position:fixed;inset:0;background:rgba(2,25,43,.42);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s ease;z-index:8998}
  .mobile-nav-backdrop.is-open{opacity:1;visibility:visible;pointer-events:auto}
  .mobile-nav-panel{display:block;position:fixed;left:0;right:0;top:var(--mobile-nav-top,72px);bottom:0;background:#fff;z-index:8999;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(-8px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease;overflow:hidden;border-top:1px solid #dbe7ec;box-shadow:0 18px 50px rgba(4,45,79,.22)}
  .mobile-nav-panel.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:none}
  .mobile-nav-inner{height:100%;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;padding:12px 18px calc(34px + env(safe-area-inset-bottom))}
  .mobile-nav-panel a,.mobile-nav-panel .nav-drop>button{box-sizing:border-box;display:flex;width:100%;align-items:center;justify-content:space-between;min-height:56px;padding:14px 8px;border:0;border-bottom:1px solid #eaf1f4;background:#fff;color:#123f5d;text-decoration:none;text-align:left;font:inherit;font-size:1rem;font-weight:800;line-height:1.25;cursor:pointer}
  .mobile-nav-panel a.active{color:#0067b8}
  .mobile-nav-panel .nav-drop>button{position:relative;padding-right:44px}
  .mobile-nav-panel .nav-drop>button::after{content:'+';position:absolute;right:10px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#edf6f8;color:#086b7d;font-size:1.25rem;line-height:1;font-weight:700}
  .mobile-nav-panel .nav-drop.open>button::after{content:'−'}
  .mobile-nav-panel .mega{position:static!important;display:none!important;width:100%!important;opacity:1!important;visibility:visible!important;transform:none!important;box-shadow:none!important;border:0!important;border-radius:0 0 14px 14px!important;background:#f7fafb!important;padding:4px 0 10px!important;grid-template-columns:1fr!important;gap:0!important}
  .mobile-nav-panel .nav-drop.open .mega{display:grid!important}
  .mobile-nav-panel .mega a{display:grid!important;grid-template-columns:42px minmax(0,1fr)!important;gap:10px!important;align-items:center!important;min-height:0!important;padding:11px 10px!important;border-bottom:1px solid #e5eef2!important;background:#f7fafb!important;color:#123f5d!important;border-radius:0!important}
  .mobile-nav-panel .mega a:last-child{border-bottom:0!important}
  .mobile-nav-panel .mega-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;background:#e8f4f5;color:#087a87}
  .mobile-nav-panel .mega b{display:block;font-size:.88rem;line-height:1.3;color:#103d60}
  .mobile-nav-panel .mega small{display:block;margin-top:3px;font-size:.72rem;line-height:1.4;color:#6f808a;font-weight:500}
  .mobile-nav-panel .nav-cta{margin-top:14px!important;justify-content:center!important;min-height:52px!important;border:0!important;border-radius:14px!important;background:#073b65!important;color:#fff!important}
  body.mobile-nav-open{overflow:hidden!important;touch-action:none}
}
@media(max-width:767px){
  .mobile-nav-panel{top:var(--mobile-nav-top,68px)}
  .mobile-nav-inner{padding:10px 14px calc(28px + env(safe-area-inset-bottom))}
  .mobile-nav-panel a,.mobile-nav-panel .nav-drop>button{font-size:.96rem;min-height:54px}
  .mobile-nav-panel .mega small{display:none}
  .mobile-nav-panel .mega a{grid-template-columns:36px minmax(0,1fr)!important;padding:10px 8px!important}
  .mobile-nav-panel .mega-icon{width:34px;height:34px}
}