*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --red:#CC0000;
  --red-dark:#990000;
  --red-light:#ff3333;
  --black:#111111;
  --dark:#1a1a1a;
  --gray:#2d2d2d;
  --gray-mid:#888;
  --gray-light:#f4f4f4;
  --white:#fff;
  --border:#e0e0e0;
}
html{scroll-behavior:smooth}
body{font-family:'Sarabun',sans-serif;font-size:16px;color:#222;background:#f4f4f4;line-height:1.65}
h1,h2,h3,h4,h5{font-family:'Prompt',sans-serif;line-height:1.3}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}

/* TOP BAR */
.topbar{background:var(--red);color:#fff;font-size:13px;padding:6px 0;text-align:center}
.topbar a{color:#fff;margin:0 12px}
.topbar a:hover{text-decoration:underline}

/* HEADER */
header{background:var(--black);border-bottom:3px solid var(--red);position:sticky;top:0;z-index:1000}
.header-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-img{width:44px;height:44px;background:#fff;border-radius:6px;display:flex;align-items:center;justify-content:center;font-family:'Prompt',sans-serif;font-weight:700;font-size:11px;color:var(--red);text-align:center;line-height:1.2}
.logo-text{color:#fff;font-family:'Prompt',sans-serif;font-weight:600;font-size:16px;line-height:1.2}
.logo-text span{color:var(--red);display:block;font-size:11px;font-weight:400}
.search-bar{flex:1;max-width:500px;display:flex;background:#fff;border-radius:4px;overflow:hidden;border:2px solid transparent;transition:border-color .2s}
.search-bar:focus-within{border-color:var(--red)}
.search-bar input{flex:1;border:none;outline:none;padding:8px 14px;font-family:'Sarabun',sans-serif;font-size:14px;color:#222}
.search-bar button{background:var(--red);color:#fff;border:none;padding:8px 16px;cursor:pointer;font-size:16px;transition:background .2s}
.search-bar button:hover{background:var(--red-dark)}
nav{margin-left:auto;display:flex;align-items:center;gap:4px}
nav a{color:#ccc;font-family:'Prompt',sans-serif;font-size:13px;padding:6px 10px;border-radius:4px;transition:color .2s,background .2s;white-space:nowrap}
nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-line{background:#06c755;color:#fff!important;padding:6px 14px!important;border-radius:20px!important;font-size:13px;white-space:nowrap}
.nav-line:hover{background:#05a847!important}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px}
.hamburger span{width:24px;height:2px;background:#fff;display:block;transition:.3s}

/* SLIDER */
.slider-wrap{position:relative;width:100%;overflow:hidden;background:#000;height:520px}
.slider{display:flex;height:100%;transition:transform .6s cubic-bezier(.4,0,.2,1);will-change:transform}
.slide{position:relative;min-width:100%;height:100%;overflow:hidden;display:flex;align-items:center}
.slide-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;transition:transform 8s ease;transform:scale(1.05)}
.slide.active .slide-bg{transform:scale(1)}
.slide-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.75) 0%,rgba(0,0,0,.3) 60%,rgba(0,0,0,.1) 100%)}
.slide-content{position:relative;z-index:2;padding:0 60px;max-width:620px}
.slide-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(204,0,0,.2);border:1px solid rgba(204,0,0,.5);color:#ff8080;font-size:12px;padding:4px 12px;border-radius:20px;margin-bottom:16px;font-family:'Prompt',sans-serif;opacity:0;transform:translateY(16px);transition:all .5s .2s}
.slide.active .slide-badge{opacity:1;transform:translateY(0)}
.slide-content h1{color:#fff;font-size:clamp(22px,3.5vw,42px);font-weight:700;margin-bottom:12px;line-height:1.25;opacity:0;transform:translateY(20px);transition:all .5s .35s}
.slide.active .slide-content h1{opacity:1;transform:translateY(0)}
.slide-content h1 span{color:var(--red)}
.slide-content p{color:rgba(255,255,255,.8);font-size:15px;margin-bottom:24px;line-height:1.7;opacity:0;transform:translateY(20px);transition:all .5s .5s}
.slide.active .slide-content p{opacity:1;transform:translateY(0)}
.slide-btns{display:flex;gap:12px;flex-wrap:wrap;opacity:0;transform:translateY(20px);transition:all .5s .65s}
.slide.active .slide-btns{opacity:1;transform:translateY(0)}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.4);color:#fff;border:1px solid rgba(255,255,255,.2);width:44px;height:44px;border-radius:50%;font-size:24px;cursor:pointer;z-index:10;transition:background .2s;display:flex;align-items:center;justify-content:center;line-height:1}
.slider-arrow:hover{background:var(--red);border-color:var(--red)}
.slider-prev{left:16px}
.slider-next{right:16px}
.slider-dots{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:10}
.dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);border:none;cursor:pointer;transition:all .3s;padding:0}
.dot.active{background:#fff;width:28px;border-radius:5px}

/* TRUST BAR STRIP */
.trust-bar-strip{background:var(--black);border-bottom:3px solid var(--red);padding:14px 20px}
.trust-bar-strip .hero-trust{display:flex;gap:24px;justify-content:center;flex-wrap:wrap}
.trust-bar-strip .trust-item{display:flex;align-items:center;gap:8px;color:#aaa;font-size:13px}
.trust-bar-strip .trust-icon{width:28px;height:28px;background:rgba(204,0,0,.15);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}

/* Placeholder slides (เมื่อยังไม่มีรูป) */
.slide-1{background:linear-gradient(135deg,#0d1b2a 0%,#1a2f45 100%)}
.slide-2{background:linear-gradient(135deg,#1a0a0a 0%,#2d1515 100%)}
.slide-3{background:linear-gradient(135deg,#0a0a1a 0%,#151528 100%)}
.slide-4{background:linear-gradient(135deg,#0a1a0a 0%,#152815 100%)}

@media(max-width:768px){
  .slider-wrap{height:380px}
  .slide-content{padding:0 48px 0 20px}
  .slide-content h1{font-size:20px}
  .slide-content p{font-size:13px;display:none}
  .slider-arrow{width:36px;height:36px;font-size:18px}
  .trust-bar-strip .hero-trust{gap:12px}
  .trust-bar-strip .trust-item{font-size:12px}
}
@media(max-width:480px){
  .slider-wrap{height:280px}
  .slide-content h1{font-size:17px}
  .slide-btns{gap:8px}
  .btn-red,.btn-outline{padding:8px 14px;font-size:12px}
}

/* BUTTONS */
.btn-red{background:var(--red);color:#fff;padding:11px 24px;border-radius:4px;font-family:'Prompt',sans-serif;font-size:14px;font-weight:500;transition:background .2s;border:2px solid var(--red);display:inline-flex;align-items:center;gap:6px}
.btn-red:hover{background:var(--red-dark);border-color:var(--red-dark)}
.btn-outline{background:transparent;color:#fff;padding:11px 24px;border-radius:4px;font-family:'Prompt',sans-serif;font-size:14px;font-weight:500;border:2px solid rgba(255,255,255,.4);transition:all .2s;display:inline-flex;align-items:center;gap:6px}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.megamenu-bar{background:#fff;border-bottom:2px solid var(--border);position:relative;z-index:900}
.megamenu-bar-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center}
.mega-toggle{display:flex;align-items:center;gap:8px;background:var(--red);color:#fff;font-family:'Prompt',sans-serif;font-size:13px;font-weight:500;padding:12px 18px;border:none;cursor:pointer;white-space:nowrap;transition:background .2s;flex-shrink:0}
.mega-toggle:hover{background:var(--red-dark)}
.mega-toggle svg{width:16px;height:16px;transition:transform .2s}
.mega-toggle.open svg.arr{transform:rotate(180deg)}
.megamenu-nav{display:flex;overflow-x:auto}
.megamenu-nav a{color:#444;font-family:'Prompt',sans-serif;font-size:13px;padding:12px 14px;white-space:nowrap;border-bottom:2px solid transparent;transition:all .2s}
.megamenu-nav a:hover{color:var(--red);border-bottom-color:var(--red)}
.mega-dropdown{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--border);border-top:none;box-shadow:0 8px 24px rgba(0,0,0,.12);z-index:950}
.mega-dropdown.open{display:flex}
.mega-left{width:230px;flex-shrink:0;border-right:1px solid var(--border);overflow-y:auto;max-height:420px}
.mega-left-item{display:flex;align-items:center;gap:10px;padding:10px 16px;font-family:'Sarabun',sans-serif;font-size:13px;color:#333;cursor:pointer;border-left:3px solid transparent;transition:all .15s;background:none;border-top:none;border-right:none;border-bottom:none;width:100%;text-align:left}
.mega-left-item:hover,.mega-left-item.active{background:#fff5f5;color:var(--red);border-left-color:var(--red)}
.mega-left-item .mi{font-size:15px;width:20px;text-align:center;flex-shrink:0}
.mega-right{flex:1;padding:20px 24px;overflow-y:auto;max-height:420px}
.mega-right-panel{display:none}
.mega-right-panel.active{display:block}
.mega-right-panel h3{font-family:'Prompt',sans-serif;font-size:15px;font-weight:600;color:var(--black);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border);display:flex;align-items:center}
.mega-right-panel h3 a{color:var(--red);font-size:12px;font-weight:400;margin-left:auto}
.mega-sub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mega-sub-col h4{font-family:'Prompt',sans-serif;font-size:13px;font-weight:500;color:var(--black);margin-bottom:8px;padding-bottom:6px;border-bottom:1px solid #f0f0f0}
.mega-sub-col ul{list-style:none;display:flex;flex-direction:column;gap:4px}
.mega-sub-col ul li a{font-size:12px;color:#555;transition:color .15s;display:block;padding:2px 0}
.mega-sub-col ul li a:hover{color:var(--red)}

/* SECTION */
.section{padding:48px 20px}
.section-white{background:#fff}
.section-gray{background:#f4f4f4}
.container{max-width:1200px;margin:0 auto}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;flex-wrap:wrap;gap:12px}
.section-title{font-size:clamp(20px,3vw,26px);font-weight:600;color:var(--black)}
.section-title span{color:var(--red)}
.section-sub{color:var(--gray-mid);font-size:14px;margin-top:4px}
.see-all{color:var(--red);font-size:13px;font-family:'Prompt',sans-serif;border:1px solid var(--red);padding:6px 14px;border-radius:4px;transition:all .2s;white-space:nowrap}
.see-all:hover{background:var(--red);color:#fff}

/* PRODUCTS GRID */
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.product-card{background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.product-card:hover{border-color:var(--red);box-shadow:0 4px 20px rgba(204,0,0,.1)}
.product-img{background:#f8f8f8;height:160px;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.product-img img{width:100%;height:100%;object-fit:contain;padding:12px}
.product-img-placeholder{font-size:48px;color:#ddd}
.product-badge{position:absolute;top:8px;left:8px;background:var(--red);color:#fff;font-size:10px;padding:2px 8px;border-radius:3px;font-family:'Prompt',sans-serif}
.product-body{padding:12px}
.product-cat{font-size:11px;color:var(--red);font-family:'Prompt',sans-serif;margin-bottom:4px;text-transform:uppercase;letter-spacing:.5px}
.product-name{font-size:14px;font-weight:500;color:var(--black);margin-bottom:6px;font-family:'Prompt',sans-serif;line-height:1.4}
.product-desc{font-size:12px;color:var(--gray-mid);margin-bottom:12px;line-height:1.5}
.product-btn{width:100%;background:var(--black);color:#fff;border:none;padding:8px;border-radius:4px;font-family:'Prompt',sans-serif;font-size:12px;cursor:pointer;transition:background .2s}
.product-btn:hover{background:var(--red)}

/* WHY US */
.why-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.why-card{background:#fff;border:1px solid var(--border);border-radius:8px;padding:20px;text-align:center;transition:border-color .2s}
.why-card:hover{border-color:var(--red)}
.why-icon{width:52px;height:52px;background:rgba(204,0,0,.08);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;margin:0 auto 12px}
.why-card h3{font-size:15px;font-weight:600;color:var(--black);margin-bottom:6px}
.why-card p{font-size:13px;color:var(--gray-mid);line-height:1.6}

/* PORTFOLIO */
.portfolio-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.portfolio-card{background:#fff;border-radius:8px;overflow:hidden;border:1px solid var(--border);transition:box-shadow .2s}
.portfolio-card:hover{box-shadow:0 4px 20px rgba(0,0,0,.1)}
.portfolio-img{height:180px;background:#1a1a1a;display:flex;align-items:center;justify-content:center;font-size:40px;color:#444;overflow:hidden}
.portfolio-img img{width:100%;height:100%;object-fit:cover}
.portfolio-body{padding:14px}
.portfolio-tag{display:inline-block;background:#f4f4f4;color:#555;font-size:11px;padding:2px 8px;border-radius:3px;margin-bottom:8px;font-family:'Prompt',sans-serif}
.portfolio-body h3{font-size:15px;font-weight:600;color:var(--black);margin-bottom:4px}
.portfolio-body p{font-size:13px;color:var(--gray-mid)}

/* REVIEWS */
.reviews-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.review-card{background:#fff;border:1px solid var(--border);border-radius:8px;padding:16px}
.review-stars{color:#f5a623;font-size:16px;margin-bottom:8px;letter-spacing:2px}
.review-text{font-size:14px;color:#444;line-height:1.6;margin-bottom:12px;font-style:italic}
.review-author{display:flex;align-items:center;gap:10px}
.review-avatar{width:36px;height:36px;border-radius:50%;background:var(--red);color:#fff;display:flex;align-items:center;justify-content:center;font-family:'Prompt',sans-serif;font-size:13px;font-weight:600;flex-shrink:0}
.review-name{font-size:13px;font-weight:500;color:var(--black);font-family:'Prompt',sans-serif}
.review-job{font-size:12px;color:var(--gray-mid)}

/* CTA BANNER */
.cta-banner{background:var(--black);border-top:3px solid var(--red);border-bottom:3px solid var(--red);padding:48px 20px;text-align:center}
.cta-banner h2{color:#fff;font-size:clamp(20px,3vw,30px);margin-bottom:10px}
.cta-banner p{color:#aaa;font-size:15px;margin-bottom:28px}
.cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn-line{background:#06c755;color:#fff;padding:12px 28px;border-radius:4px;font-family:'Prompt',sans-serif;font-size:14px;font-weight:500;transition:background .2s;display:flex;align-items:center;gap:8px}
.btn-line:hover{background:#05a847}
.btn-tel{background:transparent;color:#fff;padding:12px 28px;border-radius:4px;font-family:'Prompt',sans-serif;font-size:14px;border:2px solid #444;transition:border-color .2s;display:flex;align-items:center;gap:8px}
.btn-tel:hover{border-color:#fff}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.contact-info h3{font-size:20px;font-weight:600;margin-bottom:16px}
.contact-items{display:flex;flex-direction:column;gap:14px}
.contact-item{display:flex;align-items:flex-start;gap:12px}
.contact-icon{width:40px;height:40px;background:rgba(204,0,0,.08);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;margin-top:2px}
.contact-item h4{font-size:14px;font-weight:500;color:var(--black);margin-bottom:2px;font-family:'Prompt',sans-serif}
.contact-item p{font-size:13px;color:var(--gray-mid)}
.contact-form{background:#fff;border:1px solid var(--border);border-radius:8px;padding:24px}
.contact-form h3{font-size:18px;font-weight:600;margin-bottom:16px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:13px;color:#555;margin-bottom:6px;font-family:'Prompt',sans-serif}
.form-group input,.form-group textarea,.form-group select{width:100%;border:1px solid var(--border);border-radius:4px;padding:9px 12px;font-family:'Sarabun',sans-serif;font-size:14px;color:#222;outline:none;transition:border-color .2s}
.form-group input:focus,.form-group textarea:focus{border-color:var(--red)}
.form-group textarea{resize:vertical;min-height:90px}
.form-submit{width:100%;background:var(--red);color:#fff;border:none;padding:11px;border-radius:4px;font-family:'Prompt',sans-serif;font-size:14px;font-weight:500;cursor:pointer;transition:background .2s}
.form-submit:hover{background:var(--red-dark)}

/* FOOTER */
footer{background:var(--black);border-top:3px solid var(--red);padding:40px 20px 0}
.footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-bottom:32px}
.footer-brand p{color:#777;font-size:13px;line-height:1.7;margin:12px 0}
.footer-social{display:flex;gap:10px;margin-top:4px}
.social-btn{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;transition:background .2s}
.social-line{background:#06c755;color:#fff}
.social-fb{background:#1877f2;color:#fff}
.footer-col h4{color:#fff;font-family:'Prompt',sans-serif;font-size:14px;font-weight:500;margin-bottom:14px;padding-bottom:8px;border-bottom:1px solid #2a2a2a}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-col ul li a{color:#777;font-size:13px;transition:color .2s}
.footer-col ul li a:hover{color:var(--red)}
.footer-bottom{max-width:1200px;margin:0 auto;border-top:1px solid #2a2a2a;padding:16px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.footer-bottom p{color:#555;font-size:12px}
.footer-bottom a{color:var(--red);font-size:12px}

/* FLOAT LINE */
.float-line{position:fixed;bottom:24px;right:24px;background:#06c755;color:#fff;padding:12px 18px;border-radius:28px;font-family:'Prompt',sans-serif;font-size:13px;font-weight:500;display:flex;align-items:center;gap:8px;z-index:999;box-shadow:0 4px 16px rgba(6,199,85,.35);transition:background .2s}
.float-line:hover{background:#05a847}

/* MOBILE NAV MENU */
.mobile-menu{display:none;flex-direction:column;background:#1a1a1a;border-top:1px solid #2a2a2a;padding:12px 20px}
.mobile-menu a{color:#ccc;font-family:'Prompt',sans-serif;font-size:14px;padding:10px 0;border-bottom:1px solid #2a2a2a}
.mobile-menu a:last-child{border:none}

/* SCROLLBAR */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:#1a1a1a}
::-webkit-scrollbar-thumb{background:var(--red);border-radius:3px}

/* RESPONSIVE TABLET */
@media(max-width:768px){
  .header-inner{flex-wrap:wrap;height:auto;padding:10px 16px;gap:10px}
  .search-bar{order:3;max-width:100%;width:100%}
  nav{display:none}
  .hamburger{display:flex}
  .mobile-menu.open{display:flex}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero{padding:40px 16px}
  .section{padding:28px 16px}
  .mega-dropdown{flex-direction:column}
  .mega-left{width:100%;max-height:200px;overflow-x:auto;overflow-y:hidden;display:flex;flex-direction:row;border-right:none;border-bottom:1px solid var(--border)}
  .mega-left-item{white-space:nowrap;flex-shrink:0;border-left:none;border-bottom:3px solid transparent}
  .mega-left-item.active,.mega-left-item:hover{border-left:none;border-bottom-color:var(--red)}
  .mega-right{max-height:300px}
  .mega-sub-grid{grid-template-columns:1fr 1fr}
  .products-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:repeat(2,1fr)}
  .portfolio-grid{grid-template-columns:1fr}
  .reviews-grid{grid-template-columns:1fr}
  .hero h1{font-size:22px}
  .hero-btns{flex-direction:column;align-items:center}
  .hero-trust{gap:12px}
  .trust-item{font-size:12px}
  .section-title{font-size:18px}
  .cta-btns{flex-direction:column;align-items:center}
  .topbar{font-size:11px;padding:5px 8px}
}

/* RESPONSIVE MOBILE */
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
  .hero-trust{gap:10px}
  .products-grid{grid-template-columns:1fr 1fr;gap:10px}
  .product-img{height:120px}
  .product-name{font-size:13px}
  .product-desc{font-size:11px}
  .mega-sub-grid{grid-template-columns:1fr}
  .hero h1{font-size:20px}
  .hero p{font-size:14px}
  .hero-trust{flex-wrap:wrap;justify-content:center}
  .trust-item{flex-basis:40%}
  .why-grid{grid-template-columns:1fr}
  .portfolio-grid{grid-template-columns:1fr}
  .float-line{bottom:16px;right:16px;padding:10px 14px;font-size:12px}
  .section-header{flex-direction:column;align-items:flex-start}
  footer{padding:28px 16px 0}
  .footer-bottom{flex-direction:column;text-align:center;gap:4px}
  .logo-text{font-size:14px}
  .megamenu-nav{display:none}
}