@font-face{font-display:swap;font-family:'Poppins';font-style:normal;font-weight:300;src:url('../fonts/poppins-v20-latin-300.woff2') format('woff2')}@font-face{font-display:swap;font-family:'Poppins';font-style:normal;font-weight:400;src:url('../fonts/poppins-v20-latin-regular.woff2') format('woff2')}@font-face{font-display:swap;font-family:'Poppins';font-style:normal;font-weight:500;src:url('../fonts/poppins-v20-latin-500.woff2') format('woff2')}@font-face{font-display:swap;font-family:'Poppins';font-style:normal;font-weight:600;src:url('../fonts/poppins-v20-latin-600.woff2') format('woff2')}@font-face{font-display:swap;font-family:'Poppins';font-style:normal;font-weight:700;src:url('../fonts/poppins-v20-latin-700.woff2') format('woff2')}@font-face{font-display:swap;font-family:'Poppins';font-style:normal;font-weight:800;src:url('../fonts/poppins-v20-latin-800.woff2') format('woff2')}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:#206181}::-webkit-scrollbar-thumb{background:#0ed6b2}body{font-family:'Poppins',sans-serif}:root{--airduct-primary:#2A7DE1;--airduct-secondary:#2EC4B6;--airduct-accent:#FF8C42;--airduct-dark:#0f2238;--airduct-white:#ffffff;--airduct-soft:#eaf6ff}.airduct-center-hero{position:relative;overflow:hidden;font-family:Arial,Helvetica,sans-serif;background:#f7fbff}.dropdown-menu{border:none;border-radius:10px;box-shadow:0 10px 25px rgba(0,0,0,.12);padding:8px 0}.dropdown-item{padding:10px 20px;font-weight:500}.dropdown-item:hover{background:#2EC4B6;color:#fff}@media (max-width:991.98px){.navbar-nav .dropdown-menu{background-color:transparent;box-shadow:none;border:none;padding-top:0;padding-bottom:0;margin-top:8px}.navbar-nav .dropdown-menu .dropdown-item{color:rgba(255,255,255,0.85);padding-left:24px}.navbar-nav .dropdown-menu .dropdown-item:hover{background-color:rgba(255,255,255,0.1)}}.airduct-center-nav{position:absolute;top:0;left:0;width:100%;padding:22px 0;z-index:20}.airduct-center-logo{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:#fff;font-size:1.1rem;font-weight:800}.airduct-center-logo:hover{color:#fff}.airduct-logo-badge{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--airduct-secondary),var(--airduct-primary));display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;box-shadow:0 12px 30px rgba(42,125,225,0.25)}.airduct-center-menu .nav-link{color:rgba(255,255,255,0.92);font-weight:600;padding:10px 14px !important;border-radius:999px;transition:0.3s ease}.airduct-center-menu .nav-link:hover,.airduct-center-menu .nav-link.active{color:#fff;background:rgba(255,255,255,0.12)}.airduct-center-call{display:inline-flex;align-items:center;justify-content:center;min-width:145px;padding:12px 22px;border-radius:999px;text-decoration:none;background:var(--airduct-accent);color:#fff;font-weight:700;box-shadow:0 14px 30px rgba(255,140,66,0.25);transition:0.3s ease}.airduct-center-call:hover{color:#fff;transform:translateY(-2px);background:#ff7c2d}.airduct-center-toggle{width:52px;height:52px;border:none;background:rgba(255,255,255,0.14);border-radius:14px;display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;backdrop-filter:blur(8px)}.airduct-center-toggle span{width:22px;height:2.5px;border-radius:50px;background:#fff;display:block}.airduct-center-banner{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center}.airduct-center-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05);animation:zoomBg 18s ease-in-out infinite alternate}.airduct-center-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,28,48,0.42) 0%,rgba(10,28,48,0.98) 100%),linear-gradient(135deg,rgba(42,125,225,0.18) 0%,rgba(46,196,182,0.16) 50%,rgba(255,140,66,0.12) 100%)}.airduct-air-lines{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:2}.airduct-air-lines .air-line{position:absolute;left:-15%;width:130%;height:2px;border-radius:50px;opacity:0.22}.airduct-air-lines .line-one{top:28%;background:linear-gradient(90deg,transparent 0%,var(--airduct-secondary) 20%,#ffffff 50%,var(--airduct-primary) 75%,transparent 100%);animation:moveAir 14s linear infinite}.airduct-air-lines .line-two{top:40%;background:linear-gradient(90deg,transparent 0%,#ffffff 20%,var(--airduct-secondary) 48%,var(--airduct-accent) 74%,transparent 100%);animation:moveAir 18s linear infinite reverse}.airduct-air-lines .line-three{top:56%;background:linear-gradient(90deg,transparent 0%,var(--airduct-primary) 24%,#ffffff 52%,var(--airduct-secondary) 78%,transparent 100%);animation:moveAir 16s linear infinite}.airduct-air-lines .line-four{top:68%;background:linear-gradient(90deg,transparent 0%,var(--airduct-accent) 20%,#ffffff 52%,var(--airduct-primary) 80%,transparent 100%);animation:moveAir 20s linear infinite reverse}.airduct-floating{position:absolute;border-radius:50%;filter:blur(2px);z-index:2}.airduct-float-1{width:170px;height:170px;top:20%;left:8%;background:radial-gradient(circle,rgba(46,196,182,0.28) 0%,rgba(46,196,182,0.02) 72%);animation:floatSoft 6s ease-in-out infinite}.airduct-float-2{width:220px;height:220px;bottom:14%;right:8%;background:radial-gradient(circle,rgba(42,125,225,0.22) 0%,rgba(42,125,225,0.02) 72%);animation:floatSoft 7s ease-in-out infinite}.airduct-float-3{width:120px;height:120px;top:30%;right:18%;background:radial-gradient(circle,rgba(255,140,66,0.18) 0%,rgba(255,140,66,0.02) 72%);animation:floatSoft 5s ease-in-out infinite}.airduct-center-content{position:relative;z-index:5;color:#fff;padding-top:110px;padding-bottom:80px}.airduct-center-subtitle{display:inline-block;padding:10px 18px;border-radius:999px;background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.14);backdrop-filter:blur(8px);font-size:14px;font-weight:700;margin-bottom:22px;animation:fadeUp 1s ease both}.airduct-center-content h1{font-size:3.7rem;line-height:1.12;font-weight:800;margin-bottom:20px;animation:fadeUp 1s ease 0.15s both;text-shadow:0 10px 30px rgba(0,0,0,0.18)}.airduct-center-content p{max-width:860px;margin:0 auto 32px;font-size:1.08rem;line-height:1.95;color:rgba(255,255,255,0.92);animation:fadeUp 1s ease 0.3s both}.airduct-center-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-bottom:34px;animation:fadeUp 1s ease 0.45s both}.airduct-center-btn-main,.airduct-center-btn-outline{display:inline-flex;align-items:center;justify-content:center;min-width:180px;padding:15px 26px;border-radius:999px;font-weight:700;text-decoration:none;transition:0.3s ease;font-size:23px}.airduct-center-btn-main{background:#71c5e6;color:#0b3c61;box-shadow:0 16px 35px rgba(255,140,66,0.25)}.airduct-center-btn-main:hover{color:#fff;transform:translateY(-3px);background:#ff7d2f}.airduct-center-btn-outline{color:#fff;border:1.5px solid rgba(255,255,255,0.28);background:rgba(255,255,255,0.06);backdrop-filter:blur(8px)}.airduct-center-btn-outline:hover{color:#fff;transform:translateY(-3px);background:rgba(255,255,255,0.12)}.airduct-info-card{background:rgba(255,255,255,0.10);border:1px solid rgba(255,255,255,0.14);backdrop-filter:blur(12px);border-radius:24px;padding:20px 16px;box-shadow:0 18px 40px rgba(0,0,0,0.08);animation:fadeUp 1s ease 0.6s both}.airduct-info-card strong{display:block;font-size:16px;margin-bottom:6px;color:#fff}.airduct-info-card span{display:block;font-size:14px;color:rgba(255,255,255,0.82)}.airduct-scroll-badge{position:absolute;left:50%;bottom:24px;transform:translateX(-50%);width:34px;height:56px;border-radius:30px;border:2px solid rgba(255,255,255,0.4);z-index:6;display:flex;justify-content:center;padding-top:10px}.airduct-scroll-badge span{width:6px;height:12px;border-radius:20px;background:#fff;display:block;animation:scrollMove 1.8s infinite}@keyframes zoomBg{0%{transform:scale(1.05)}100%{transform:scale(1.14)}}@keyframes moveAir{0%{transform:translateX(0) translateY(0)}50%{transform:translateX(-2%) translateY(8px)}100%{transform:translateX(0) translateY(0)}}@keyframes floatSoft{0%,100%{transform:translateY(0px)}50%{transform:translateY(-18px)}}@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}@keyframes scrollMove{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(16px)}}@media (max-width:991.98px){.airduct-center-toggle{display:flex}.airduct-center-menu{display:none;width:100%;margin-top:16px;background:rgba(10,28,48,0.88);border-radius:22px;padding:18px;backdrop-filter:blur(12px)}.airduct-center-menu.show{display:block}.airduct-center-menu .navbar-nav{align-items:flex-start !important}.airduct-center-content h1{font-size:2.7rem}.airduct-center-content p{max-width:100%}}@media (max-width:767.98px){.airduct-center-logo{font-size:0.96rem}.airduct-logo-badge{width:38px;height:38px;border-radius:12px}.airduct-center-banner{min-height:92vh}.airduct-center-content{padding-top:120px;padding-bottom:70px}.airduct-center-content h1{font-size:2.1rem}.airduct-center-content p{font-size:1rem;line-height:1.8}.airduct-center-btn-main,.airduct-center-btn-outline{width:100%}.airduct-float-1,.airduct-float-2,.airduct-float-3{opacity:0.7}}.airduct-faq-premium{position:relative;padding:100px 0;background:linear-gradient(180deg,#f8fbff 0%,#ffffff 100%);overflow:hidden}.faq-premium-shape{position:absolute;border-radius:50%;pointer-events:none}.faq-premium-shape.shape-one{width:260px;height:260px;top:-80px;right:-70px;background:radial-gradient(circle,rgba(42,125,225,.12) 0%,rgba(42,125,225,.02) 70%,transparent 100%);animation:faqFloat 7s ease-in-out infinite}.faq-premium-shape.shape-two{width:220px;height:220px;bottom:-60px;left:-60px;background:radial-gradient(circle,rgba(46,196,182,.14) 0%,rgba(46,196,182,.02) 70%,transparent 100%);animation:faqFloat 8s ease-in-out infinite}.faq-premium-tag{display:inline-block;padding:8px 18px;border-radius:999px;background:rgba(46,196,182,.12);color:#149886;font-size:14px;font-weight:700;margin-bottom:16px}.airduct-faq-premium h2{font-size:2.3rem;font-weight:800;color:#10233d;margin-bottom:14px}.airduct-faq-premium p{color:#5c6d7e;line-height:1.9}.faq-service-box{position:relative;z-index:2;height:100%;background:#ffffff;border:1px solid rgba(42,125,225,.08);border-radius:26px;padding:24px 20px;box-shadow:0 18px 40px rgba(16,35,61,.06);transition:.35s ease}.faq-service-box:hover{transform:translateY(-6px);box-shadow:0 26px 48px rgba(16,35,61,.10);border-color:rgba(46,196,182,.22)}.faq-service-head{display:flex;align-items:center;gap:14px;margin-bottom:18px}.faq-service-icon{width:62px;height:62px;min-width:62px;border-radius:18px;background:linear-gradient(135deg,#2A7DE1,#2EC4B6);color:#ffffff;display:flex;align-items:center;justify-content:center;box-shadow:0 14px 28px rgba(42,125,225,.18);font-size:24px}.faq-service-head h3{font-size:1.15rem;font-weight:700;color:#10233d;margin:0}.faq-accordion .accordion-item{border:none;margin-bottom:12px;border-radius:16px;overflow:hidden;background:#f8fbff}.faq-accordion .accordion-item:last-child{margin-bottom:0}.faq-accordion .accordion-button{background:#f8fbff;color:#10233d;font-weight:600;font-size:.97rem;box-shadow:none;padding:16px 18px}.faq-accordion .accordion-button:not(.collapsed){background:rgba(46,196,182,.14);color:#10233d}.faq-accordion .accordion-button:focus{box-shadow:none}.faq-accordion .accordion-body{padding:16px 18px;font-size:.95rem;line-height:1.8;color:#5c6d7e;background:#ffffff}@keyframes faqFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}@media (max-width:991.98px){.airduct-faq-premium{padding:80px 0}.airduct-faq-premium h2{font-size:2rem}}@media (max-width:767.98px){.airduct-faq-premium{padding:65px 0}.airduct-faq-premium h2{font-size:1.7rem}.faq-service-box{border-radius:20px;padding:20px 16px}.faq-service-icon{width:54px;height:54px;min-width:54px;font-size:20px;border-radius:16px}.faq-service-head h3{font-size:1.02rem}}.why-airduct-alt{position:relative;padding:95px 0;background:#ffffff;overflow:hidden}.why-airduct-alt::before{content:"";position:absolute;top:40px;left:-70px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(46,196,182,0.12) 0%,rgba(46,196,182,0.02) 70%,transparent 100%);animation:whyAltFloat 7s ease-in-out infinite}.why-airduct-alt::after{content:"";position:absolute;bottom:20px;right:-70px;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,rgba(42,125,225,0.12) 0%,rgba(42,125,225,0.02) 70%,transparent 100%);animation:whyAltFloat 8s ease-in-out infinite}.why-airduct-alt-head{max-width:760px;margin:0 auto 55px;position:relative;z-index:2}.why-airduct-label{display:inline-block;padding:8px 18px;border-radius:999px;background:rgba(42,125,225,0.08);color:#2A7DE1;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:0.3px;animation:whyAltFade 0.8s ease both}.why-airduct-alt-head h2{font-size:2.3rem;line-height:1.2;font-weight:800;color:#10233d;margin-bottom:15px;animation:whyAltFade 0.8s ease 0.12s both}.why-airduct-alt-head p{font-size:1rem;line-height:1.9;color:#5d6c7e;margin:0;animation:whyAltFade 0.8s ease 0.24s both}.why-airduct-line{position:absolute;top:235px;left:50%;transform:translateX(-50%);width:min(1140px,calc(100% - 40px));height:2px;background:linear-gradient(90deg,rgba(42,125,225,0.10) 0%,rgba(46,196,182,0.35) 25%,rgba(255,140,66,0.28) 50%,rgba(46,196,182,0.35) 75%,rgba(42,125,225,0.10) 100%);z-index:1}.why-airduct-row{position:relative;z-index:2}.why-airduct-box{position:relative;height:100%;background:linear-gradient(180deg,#ffffff 0%,#f8fcff 100%);border:1px solid rgba(42,125,225,0.10);border-radius:26px;padding:34px 22px 24px;box-shadow:0 18px 40px rgba(16,35,61,0.06);transition:all 0.35s ease;animation:whyAltFade 0.8s ease both}.why-airduct-box:hover{transform:translateY(-10px);border-color:rgba(46,196,182,0.24);box-shadow:0 24px 46px rgba(16,35,61,0.10)}.why-airduct-top{position:relative;padding-top:18px;margin-bottom:18px}.why-airduct-dot{position:absolute;top:-29px;left:0;width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,#2A7DE1,#2EC4B6);box-shadow:0 0 0 7px rgba(42,125,225,0.08)}.why-airduct-num{display:inline-flex;align-items:center;justify-content:center;min-width:58px;height:34px;padding:0 14px;border-radius:999px;background:rgba(255,140,66,0.10);color:#FF8C42;font-size:14px;font-weight:800;letter-spacing:1px}.why-airduct-box h3{font-size:1.2rem;font-weight:700;color:#10233d;margin-bottom:12px}.why-airduct-box p{font-size:0.96rem;line-height:1.85;color:#5d6c7e;margin:0}@keyframes whyAltFade{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}@keyframes whyAltFloat{0%,100%{transform:translateY(0px)}50%{transform:translateY(-16px)}}@media (max-width:991.98px){.why-airduct-alt{padding:80px 0}.why-airduct-alt-head h2{font-size:2rem}.why-airduct-line{display:none}.why-airduct-dot{top:-10px}.why-airduct-top{padding-top:0}}@media (max-width:767.98px){.why-airduct-alt{padding:65px 0}.why-airduct-alt-head{margin-bottom:35px}.why-airduct-alt-head h2{font-size:1.7rem}.why-airduct-box{padding:28px 18px 22px}}.airduct-rebuild-section{position:relative;padding:90px 0;background:linear-gradient(180deg,#102b4603 31%,#102b46 100%);overflow:hidden}.airduct-rebuild-content{position:relative;z-index:2}.airduct-rebuild-tag{display:inline-block;padding:9px 18px;border-radius:999px;background:rgba(46,196,182,.12);color:#149886;font-size:14px;font-weight:700;margin-bottom:16px;animation:airductFadeUp .8s ease both}.airduct-rebuild-content h2{font-size:2.35rem;line-height:1.2;font-weight:800;color:#10233d;margin-bottom:18px;animation:airductFadeUp .8s ease .12s both}.airduct-rebuild-content p{font-size:1rem;line-height:1.95;color:#000;margin-bottom:16px;animation:airductFadeUp .8s ease .24s both}.airduct-rebuild-points{margin-top:22px}.airduct-point-box{height:100%;background:#ffffff;border:1px solid rgba(42,125,225,.10);border-radius:18px;padding:16px 18px;font-weight:700;color:#10233d;box-shadow:0 14px 30px rgba(16,35,61,.06);transition:all .3s ease;animation:airductFadeUp .8s ease .36s both}.airduct-point-box:hover{transform:translateY(-6px);border-color:rgba(46,196,182,.25)}.airduct-rebuild-visual{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center}.airduct-rebuild-circle{position:absolute;border-radius:50%;z-index:0}.airduct-circle-one{width:320px;height:320px;background:radial-gradient(circle,rgba(42,125,225,.16) 0%,rgba(42,125,225,.03) 70%,transparent 100%);top:40px;left:40px;animation:airductFloat 6s ease-in-out infinite}.airduct-circle-two{width:240px;height:240px;background:radial-gradient(circle,rgba(46,196,182,.18) 0%,rgba(46,196,182,.03) 70%,transparent 100%);bottom:30px;right:20px;animation:airductFloat 7s ease-in-out infinite}.airduct-rebuild-card{position:absolute;z-index:2;background:#ffffff;border:1px solid rgba(42,125,225,.10);box-shadow:0 24px 50px rgba(16,35,61,.10)}.main-card{width:100%;max-width:400px;border-radius:28px;padding:34px 28px;text-align:center;animation:airductFadeUp .9s ease .2s both}.airduct-card-icon{width:88px;height:88px;margin:0 auto 20px;border-radius:22px;background:linear-gradient(135deg,#2A7DE1,#2EC4B6);color:#ffffff;display:flex;align-items:center;justify-content:center;box-shadow:0 16px 30px rgba(42,125,225,.22)}.airduct-card-icon svg{width:46px;height:46px}.main-card h3{font-size:1.4rem;font-weight:800;color:#10233d;margin-bottom:12px}.main-card p{font-size:.98rem;line-height:1.85;color:#5a6b7f;margin:0}.small-card{border-radius:20px;padding:18px 20px;min-width:200px;animation:airductFadeUp .9s ease .35s both}.small-card strong{display:block;font-size:1.05rem;color:#10233d;margin-bottom:6px}.small-card span{display:block;font-size:.92rem;line-height:1.7;color:#5a6b7f}.top-card{top:38px;right:10px}.bottom-card{bottom:42px;left:20px}@keyframes airductFadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}@keyframes airductFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}@media (max-width:991.98px){.airduct-rebuild-section{padding:75px 0}.airduct-rebuild-content h2{font-size:2rem}.airduct-rebuild-visual{min-height:460px;margin-top:10px}.top-card{right:0}.bottom-card{left:0}}@media (max-width:767.98px){.airduct-rebuild-section{padding:65px 0}.airduct-rebuild-content h2{font-size:1.7rem}.airduct-rebuild-visual{min-height:auto;display:block}.airduct-rebuild-circle{display:none}.airduct-rebuild-card{position:relative}.main-card{max-width:100%;margin-bottom:16px}.top-card,.bottom-card{top:auto;right:auto;left:auto;bottom:auto;min-width:100%;margin-bottom:16px}}/* */.airduct-light-section{padding:90px 0;background:#f7fbff}.airduct-light-section h2{font-size:2.2rem;font-weight:800;color:#10233d;margin-bottom:15px}.airduct-light-section p{color:#5a6b7f;line-height:1.9}.airduct-light-card{background:#ffffff;padding:30px 25px;border-radius:20px;text-align:center;border:1px solid rgba(42,125,225,.08);box-shadow:0 15px 35px rgba(16,35,61,.05);transition:.3s;height:100%}.airduct-light-card:hover{transform:translateY(-8px);box-shadow:0 20px 45px rgba(16,35,61,.1)}.light-icon{font-size:34px;margin-bottom:12px}.airduct-light-card h4{font-weight:700;margin-bottom:10px;color:#10233d}.airduct-light-card p{font-size:.95rem}.hvac-sanitize-unique{position:relative;padding:100px 0;background:linear-gradient(135deg,#0c1d31 0%,#102b46 55%,#0b1a2b 100%);overflow:hidden;color:#fff}.hvac-air-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:70px 70px;mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.55));z-index:0}.hvac-air-lines{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}.air-wave{position:absolute;left:-15%;width:130%;height:180px;border-radius:50%;border:2px dashed rgba(46,196,182,.16);filter:blur(.2px)}.wave-1{top:10%;animation:ductFlow 18s linear infinite}.wave-2{top:38%;border-color:rgba(42,125,225,.20);animation:ductFlow 22s linear infinite reverse}.wave-3{top:66%;border-color:rgba(255,140,66,.16);animation:ductFlow 26s linear infinite}.hvac-sanitize-content,.hvac-sanitize-visual{position:relative;z-index:2}.hvac-sanitize-tag{display:inline-block;padding:9px 18px;border-radius:999px;background:rgba(46,196,182,.14);color:#7cf0da;font-size:14px;font-weight:700;margin-bottom:16px;backdrop-filter:blur(6px);animation:sanitizeFadeUp .8s ease both}.hvac-sanitize-content h2{font-size:2.5rem;line-height:1.18;font-weight:800;margin-bottom:18px;color:#ffffff;animation:sanitizeFadeUp .8s ease 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