*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Poppins',system-ui,-apple-system,sans-serif;color:#4a5a6a;background:#fff;line-height:1.7;overflow-x:hidden}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{max-width:1320px;margin:0 auto;padding:0 24px}

/* ===== Hero Topbar ===== */
.hero-topbar{background:transparent;padding:14px 0;box-shadow:none;position:fixed;top:0;left:0;right:0;z-index:900;transition:background .35s ease,box-shadow .35s ease}
.hero-topbar.scrolled{background:#fff;box-shadow:0 2px 8px rgba(61,159,214,.08)}
.topbar-inner{max-width:1320px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center}
.brand img{width:50%;border-radius:8px}
.brand .logo-scrolled{display:none}
.hero-topbar.scrolled .brand .logo-default{display:none}
.hero-topbar.scrolled .brand .logo-scrolled{display:block}
.inquiry-btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,#5bb8e8,#3a9fd6);color:#fff;font-size:16px;font-weight:600;padding:10px 22px;border-radius:50px;border:none;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px rgba(61,159,214,.3)}
.inquiry-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(61,159,214,.4)}

/* ===== Hero Carousel ===== */
.hero-carousel{position:relative;height:560px;overflow:hidden}
.hero-track{display:flex;height:100%;transition:transform .7s cubic-bezier(.25,.8,.25,1)}
.hero-slide{min-width:100%;height:100%;position:relative}
.hero-slide img{width:100%;height:100%;object-fit:cover;animation:heroZoom 8s ease-in-out forwards}
@keyframes heroZoom{0%{transform:scale(1)}100%{transform:scale(1.12)}}
.slide-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(26,42,58,.65) 0%,rgba(26,42,58,.25) 60%,transparent 100%)}
.slide-content{position:absolute;left:0;right:0;bottom:80px;max-width:1320px;margin:0 auto;padding:0 60px}
.slide-content h2{font-size:clamp(28px,4vw,48px);font-weight:700;color:#fff;margin-bottom:12px;line-height:1.2}
.slide-content p{font-size:16px;color:rgba(255,255,255,.9);max-width:520px;line-height:1.6}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.9);border:none;cursor:pointer;z-index:5;display:flex;align-items:center;justify-content:center;font-size:16px;color:#1a2a3a;box-shadow:0 8px 30px rgba(0,0,0,.15);transition:all .3s}
.hero-arrow:hover{background:#8dd7f7;color:#fff}
.hero-arrow.prev{left:24px}
.hero-arrow.next{right:24px}
.hero-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.hero-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;transition:all .3s;border:none;padding:0}
.hero-dot.active{background:#8dd7f7;width:32px;border-radius:10px}

/* ===== Section Base ===== */
.section{padding:100px 0}
.section-header{text-align:center;max-width:700px;margin:0 auto 60px}
.section-tag{display:inline-block;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:3px;color:#3a9fd6;margin-bottom:16px}
.section-title{font-size:clamp(28px,4vw,44px);font-weight:700;color:#1a2a3a;line-height:1.2;margin-bottom:16px}
.section-desc{font-size:16px;color:#7a8a9a;font-weight:300}

/* ===== About ===== */
.about{background:#fff}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-text h2{font-size:36px;font-weight:700;color:#1a2a3a;margin-bottom:20px;line-height:1.25}
.about-text p{margin-bottom:16px;font-size:15px}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.about-feature{display:flex;align-items:flex-start;gap:14px}
.about-feature .icon{width:48px;height:48px;min-width:48px;border-radius:12px;background:#e8f7ff;display:flex;align-items:center;justify-content:center;color:#3a9fd6;font-size:18px;box-shadow:0 2px 8px rgba(61,159,214,.1)}
.about-feature h4{font-size:15px;font-weight:600;color:#1a2a3a;margin-bottom:4px}
.about-feature p{font-size:13px;color:#7a8a9a;margin:0}
.about-img-wrap:hover .about-img{transform:scale(1.08)}

/* ===== Products ===== */
.products{background:linear-gradient(180deg,#f4fbff 0%,#fff 100%)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.product-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px rgba(61,159,214,.1);transition:all .4s cubic-bezier(.25,.8,.25,1)}
.product-card:hover{transform:translateY(-12px) scale(1.02);box-shadow:0 20px 60px rgba(61,159,214,.22)}
.product-img{width:100%;height:280px;overflow:hidden;position:relative}
.product-img img{width:100%;height: 100%; object-fit:contain;transition:transform .5s ease}
.product-card:hover .product-img img{transform:scale(1.08)}
.product-tag{position:absolute;top:16px;left:16px;background:rgba(141,215,247,.9);color:#1a2a3a;font-size:11px;font-weight:600;padding:4px 12px;border-radius:20px}
.product-info{padding:24px}
.product-info h3{font-size:18px;font-weight:600;color:#1a2a3a;margin-bottom:8px}
.product-info p{font-size:14px;color:#7a8a9a;line-height:1.6}
.btn-detail{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:13px;font-weight:600;color:#3a9fd6;transition:gap .3s}
.btn-detail:hover{gap:10px}

/* ===== Product Carousel ===== */
.carousel-section{background:#fff;padding:100px 0}
.carousel{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 20px 60px rgba(61,159,214,.22)}
.carousel-track{display:flex;transition:transform .6s cubic-bezier(.25,.8,.25,1)}
.carousel-slide{min-width:100%;position:relative;height:480px}
.carousel-slide img{width:100%;height:100%;object-fit:contain}
.carousel-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(26,42,58,.75) 0%,rgba(26,42,58,.3) 60%,transparent 100%)}
.carousel-overlay-content{position:absolute;max-width:1320px;margin:0 auto;padding:0 60px;width:100%;top:50%;transform:translateY(-50%)}
.carousel-overlay-content h3{font-size:36px;font-weight:700;color:#fff;margin-bottom:12px}
.carousel-overlay-content p{font-size:16px;color:rgba(255,255,255,.85);max-width:480px;margin-bottom:24px}
.btn-slide{display:inline-flex;align-items:center;gap:8px;background:#8dd7f7;color:#1a2a3a;padding:12px 28px;border-radius:50px;font-size:14px;font-weight:600;transition:all .3s;border:none;cursor:pointer}
.btn-slide:hover{background:#5bb8e8;transform:translateY(-2px)}
.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.9);border:none;cursor:pointer;z-index:5;display:flex;align-items:center;justify-content:center;font-size:16px;color:#1a2a3a;box-shadow:0 8px 30px rgba(0,0,0,.15);transition:all .3s}
.carousel-arrow:hover{background:#8dd7f7;color:#fff}
.carousel-arrow.prev{left:20px}
.carousel-arrow.next{right:20px}
.carousel-nav{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.carousel-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:all .3s;border:none;padding:0}
.carousel-dot.active{background:#8dd7f7;width:30px;border-radius:10px}

/* ===== Services ===== */
.services{background:linear-gradient(180deg,#fff 0%,#f4fbff 100%)}
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.service-card{position:relative;height:340px;border-radius:12px;overflow:hidden;box-shadow:0 8px 30px rgba(61,159,214,.15);cursor:pointer}
.service-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.service-card:hover .service-bg{transform:scale(1.08)}
.service-filter{position:absolute;inset:0;background:rgba(30,40,50,.35);transition:background .4s ease}
.service-card:hover .service-filter{background:rgba(30,40,50,.55)}
.service-text{position:absolute;left:0;right:0;bottom:0;padding:30px;color:#fff;transform:translateY(40%);transition:transform .45s cubic-bezier(.25,.8,.25,1)}
.service-card:hover .service-text{transform:translateY(0)}
.s-icon{width:44px;height:44px;border-radius:10px;background:#8dd7f7;display:flex;align-items:center;justify-content:center;font-size:18px;color:#1a2a3a;margin-bottom:14px}
.service-text h3{font-size:20px;font-weight:600;margin-bottom:8px}
.service-text p{font-size:14px;color:rgba(255,255,255,.85);line-height:1.6;opacity:0;transform:translateY(10px);transition:all .4s ease .1s}
.service-card:hover .service-text p{opacity:1;transform:translateY(0)}

/* ===== Certifications ===== */
.certs{background:#f4fbff;padding:70px 0}
.cert-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.cert-item{background:#fff;border-radius:16px;padding:36px 20px;text-align:center;box-shadow:0 2px 8px rgba(61,159,214,.1);transition:all .35s ease}
.cert-item:hover{transform:translateY(-8px);box-shadow:0 8px 30px rgba(61,159,214,.15)}
.cert-icon{width:64px;height:64px;border-radius:16px;background:linear-gradient(135deg,#e8f7ff,#d0effc);display:flex;align-items:center;justify-content:center;font-size:26px;color:#3a9fd6;margin:0 auto 18px;transition:all .3s}
.cert-item:hover .cert-icon{background:linear-gradient(135deg,#8dd7f7,#5bb8e8);color:#fff}
.cert-item h4{font-size:18px;font-weight:600;color:#1a2a3a;margin-bottom:4px}
.cert-item p{font-size:14px;color:#7a8a9a;margin-top:4px}

/* ===== Contact ===== */
.contact-section{background:linear-gradient(135deg,#8dd7f7 0%,#3a9fd6 100%);padding:90px 0;position:relative;overflow:hidden}
.contact-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.contact-info h2{font-size:clamp(28px,4vw,38px);font-weight:700;color:#fff;margin-bottom:16px;line-height:1.25}
.contact-info>p{font-size:15px;color:rgba(255,255,255,.9);margin-bottom:36px;line-height:1.7}
.contact-detail{display:flex;align-items:flex-start;gap:16px;margin-bottom:24px}
.c-icon{width:48px;height:48px;min-width:48px;border-radius:12px;background:rgba(255,255,255,.2);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.contact-detail h4{font-size:18px;font-weight:600;color:rgba(255,255,255,.85);margin-bottom:2px}
.contact-detail p{font-size:15px;color:#fff;line-height:1.5}
.contact-form{background:#fff;border-radius:16px;padding:40px;box-shadow:0 20px 60px rgba(0,0,0,.15)}
.contact-form h3{font-size:22px;font-weight:600;color:#1a2a3a;margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:#1a2a3a;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border:1.5px solid #e0e8ee;border-radius:10px;font-size:14px;font-family:inherit;color:#1a2a3a;background:#f4fbff;transition:border-color .3s;outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:#5bb8e8}
.form-group textarea{resize:vertical;min-height:100px}
.submit-btn{width:100%;padding:14px;background:linear-gradient(135deg,#5bb8e8,#3a9fd6);color:#fff;border:none;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s;display:flex;align-items:center;justify-content:center;gap:8px}
.submit-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(61,159,214,.35)}

/* ===== Footer ===== */
.footer{background:#0f1e2e;color:rgba(255,255,255,.7);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.f-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand p{font-size:15px;line-height:1.7;max-width:280px}
.footer h4{font-size:18px;font-weight:600;color:#fff;margin-bottom:18px;text-transform:uppercase;letter-spacing:1px}
.footer ul{list-style:none}
.footer ul li{margin-bottom:10px}
.footer ul li a{font-size:15px;color:rgba(255,255,255,.6);transition:color .3s}
.footer ul li a:hover{color:#8dd7f7}
.footer-bottom{padding:20px 0;text-align:center;font-size:14px;color:rgba(255,255,255,.4)}

/* ===== Floating Sidebar ===== */
.float-sidebar{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:999;display:flex;flex-direction:column;gap:10px}
.fab-btn{width:48px;height:48px;border-radius:50%;background:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;color:#3a9fd6;box-shadow:0 4px 15px rgba(61,159,214,.25);transition:all .3s;text-decoration:none}
.fab-btn:hover{background:#8dd7f7;color:#fff;transform:scale(1.1)}
.fab-btn.top{display:none}
.fab-btn.top.show{display:flex}

/* ===== Modal ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(26,42,58,.6);backdrop-filter:blur(4px);z-index:1000;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.active{display:flex}
.modal-box{background:#fff;border-radius:16px;width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.25);animation:modalIn .3s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}
.modal-header{padding:28px 32px 0;display:flex;justify-content:space-between;align-items:flex-start}
.modal-header h3{font-size:22px;font-weight:700;color:#1a2a3a}
.modal-header p{font-size:14px;color:#7a8a9a;margin-top:4px}
.modal-close{width:36px;height:36px;border-radius:50%;border:none;background:#f4fbff;color:#4a5a6a;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s;flex-shrink:0}
.modal-close:hover{background:#e8f7ff;color:#1a2a3a}
.modal-body{padding:24px 32px 32px}

/* ===== Responsive ===== */
@media(max-width:968px){
  .about-grid{grid-template-columns:1fr;gap:40px}
  .product-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .service-grid{grid-template-columns:1fr;gap:20px}
  .carousel-slide{height:360px}
  .carousel-overlay-content{padding:0 24px}
  .carousel-overlay-content h3{font-size:24px}
  .hero-carousel{height:400px}
  .slide-content{bottom:60px;padding:0 24px}
  .cert-row{grid-template-columns:repeat(2,1fr);gap:16px}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:600px){
  .product-grid{grid-template-columns:1fr}
  .section{padding:60px 0}
  .carousel-slide{height:280px}
  .hero-carousel{height:320px}
  .slide-content h2{font-size:24px}
  .about-features{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .contact-form{padding:24px}
  .float-sidebar{right:10px}
}