:root{
  --bg:#0b0f14;
  --surface:#111821;
  --surface2:#172231;
  --text:#f7fafc;
  --muted:#a8b3c2;
  --brand:#e50914;
  --gold:#f7c948;
  --line:#dbe4f0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans Thai", "Prompt", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:#f4f6f8;
  color:#18212f;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:auto}
.topbar{
  background:#0b0f14;color:#fff;font-size:14px;
}
.topbar .container{display:flex;gap:16px;justify-content:space-between;align-items:center;padding:10px 0;flex-wrap:wrap}
.nav{
  position:sticky;top:0;z-index:10;background:rgba(255,255,255,.96);
  border-bottom:1px solid #e7edf5;backdrop-filter:blur(12px)
}
.nav .container{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:24px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800}
.logo-mark{
  width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--brand),#ff6b00);
  color:#fff;display:grid;place-items:center;font-weight:900;letter-spacing:.5px;
  box-shadow:0 10px 25px rgba(229,9,20,.25)
}
.logo small{display:block;color:#697386;font-weight:600;margin-top:2px}
.nav-links{display:flex;gap:18px;align-items:center;font-weight:700;color:#354154}
.nav-links a:hover{color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 18px;border-radius:999px;font-weight:800;border:0;cursor:pointer
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 24px rgba(229,9,20,.25)}
.btn-dark{background:#0b0f14;color:#fff}
.btn-light{background:#fff;color:#111;border:1px solid #e3e8ef}
.hero{
  background:
    radial-gradient(circle at 15% 20%, rgba(229,9,20,.22), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(247,201,72,.18), transparent 25%),
    linear-gradient(135deg,#09111d 0%,#111821 60%,#231015 100%);
  color:#fff;overflow:hidden
}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding:70px 0}
.badge{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.14);padding:9px 14px;border-radius:999px;color:#ffec99;font-weight:800
}
h1{font-size:clamp(34px,5vw,62px);line-height:1.08;margin:22px 0 18px}
.hero p{font-size:18px;line-height:1.8;color:#d8e0eb;margin:0 0 26px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  padding:18px;border-radius:28px;box-shadow:0 35px 80px rgba(0,0,0,.35)
}
.hero-card img{border-radius:20px;aspect-ratio:4/5;object-fit:cover}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.stat{background:rgba(255,255,255,.08);border-radius:18px;padding:14px;text-align:center}
.stat strong{font-size:22px;color:#fff}
.stat span{display:block;color:#b8c5d6;font-size:13px;margin-top:4px}
.section{padding:72px 0}
.section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:30px}
.section-title h2{font-size:clamp(28px,3vw,42px);margin:0;color:#101826}
.section-title p{margin:8px 0 0;color:#667085;line-height:1.7}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.filter-btn{
  border:1px solid #dbe3ef;background:#fff;border-radius:999px;padding:10px 14px;font-weight:800;
  cursor:pointer;color:#354154
}
.filter-btn.active,.filter-btn:hover{background:#101826;color:#fff;border-color:#101826}
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{
  background:#fff;border-radius:24px;overflow:hidden;border:1px solid #e6edf5;
  box-shadow:0 14px 30px rgba(16,24,38,.08);display:flex;flex-direction:column
}
.card-image{background:#eef2f7;position:relative}
.card-image img{width:100%;aspect-ratio:4/5;object-fit:cover}
.tag{
  position:absolute;top:12px;left:12px;background:rgba(11,15,20,.88);color:#fff;
  padding:7px 10px;border-radius:999px;font-size:12px;font-weight:800
}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{margin:0;font-size:18px;line-height:1.35;color:#101826}
.model{color:#e50914;font-weight:900}
.desc{color:#667085;line-height:1.65;font-size:14px;margin:0;flex:1}
.price{font-size:18px;font-weight:900;color:#101826}
.card-actions{display:flex;gap:8px;flex-wrap:wrap}
.card .btn{padding:10px 13px;font-size:14px;flex:1}
.features{background:#fff}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature{
  border:1px solid #e6edf5;border-radius:24px;padding:24px;background:#fff;
  box-shadow:0 12px 26px rgba(16,24,38,.06)
}
.feature .icon{font-size:34px;margin-bottom:12px}
.feature h3{margin:0 0 8px}
.feature p{margin:0;color:#667085;line-height:1.7}
.cta{
  background:linear-gradient(135deg,#101826,#241018);color:#fff;border-radius:34px;
  padding:38px;display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center
}
.cta h2{margin:0 0 8px;font-size:32px}
.cta p{margin:0;color:#cfd8e6;line-height:1.7}
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px}
.contact-card{
  background:#fff;border:1px solid #e6edf5;border-radius:24px;padding:24px;
  box-shadow:0 12px 26px rgba(16,24,38,.06)
}
.contact-card h3{margin-top:0}
.contact-list{display:grid;gap:14px;margin-top:18px}
.contact-item{display:flex;gap:12px;align-items:flex-start;padding:14px;background:#f6f8fb;border-radius:16px}
.contact-item strong{display:block}
.contact-item span{color:#667085}
.form{
  display:grid;gap:12px
}
.form input,.form textarea,.form select{
  width:100%;padding:14px 16px;border:1px solid #dbe3ef;border-radius:16px;font:inherit;background:#fff
}
.form textarea{min-height:110px;resize:vertical}
.footer{background:#0b0f14;color:#a8b3c2;padding:28px 0}
.footer .container{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.float-call{
  position:fixed;right:18px;bottom:18px;z-index:20;
  display:flex;flex-direction:column;gap:10px
}
.float-call a{box-shadow:0 10px 25px rgba(0,0,0,.22)}
@media(max-width:980px){
  .hero .container,.contact{grid-template-columns:1fr}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr}
  .cta{grid-template-columns:1fr}
}
@media(max-width:620px){
  .nav .container{align-items:flex-start}
  .nav-links{display:none}
  .product-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .section{padding:50px 0}
  .topbar .container{justify-content:center;text-align:center}
}


.spec-list{
  margin:4px 0 2px;
  padding:12px 14px 12px 30px;
  background:#f7f9fc;
  border:1px solid #e8eef6;
  border-radius:16px;
  color:#475467;
  line-height:1.65;
  font-size:13.5px;
}
.spec-list li{margin:4px 0}
.card-body{gap:9px}
.card h3{min-height:48px}


.brand-line{
  display:inline-flex;
  width:max-content;
  padding:5px 10px;
  border-radius:999px;
  background:#fff1f1;
  color:#c4000b;
  border:1px solid #ffd3d3;
  font-size:12px;
  font-weight:900;
}


.line-qr-box{
  margin-top:18px;
  padding:18px;
  border-radius:22px;
  background:#f6fff9;
  border:1px solid #bff2d0;
  text-align:center;
}
.line-qr-box h3{
  margin:0 0 12px;
  color:#101826;
}
.line-qr-box img{
  width:min(260px,100%);
  margin:0 auto;
  border-radius:18px;
  background:#fff;
  border:1px solid #e3f7ea;
}
.line-qr-box p{
  margin:12px 0 0;
  color:#475467;
  line-height:1.6;
}


.logo-img-wrap{
  width:54px;
  height:54px;
  border-radius:16px;
  background:#fff;
  display:grid;
  place-items:center;
  overflow:hidden;
  border:1px solid #e7edf5;
  box-shadow:0 8px 22px rgba(16,24,38,.12);
}
.logo-img-wrap img{
  width:50px;
  height:50px;
  object-fit:contain;
}