:root{
  --navy:#0b2a4a;
  --navy-2:#123e68;
  --blue:#1677ff;
  --sky:#eaf4ff;
  --ink:#172033;
  --muted:#667085;
  --line:#e6eaf0;
  --surface:#ffffff;
  --soft:#f6f9fc;
}
html{scroll-behavior:smooth}
body{font-family:system-ui,-apple-system,"Segoe UI","Noto Sans Thai",Tahoma,sans-serif;color:var(--ink);background:#fff;line-height:1.7}
a{text-decoration:none}
.site-navbar{background:linear-gradient(90deg,var(--navy),var(--navy-2));}
.navbar-brand{letter-spacing:.3px}.navbar .nav-link{color:rgba(255,255,255,.78);font-weight:500}.navbar .nav-link:hover,.navbar .nav-link.active{color:#fff}
.brand-mark{width:38px;height:38px;border-radius:12px;display:inline-grid;place-items:center;background:rgba(255,255,255,.14);color:#fff}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#071f37 0%,#0c3f70 55%,#1677ff 130%);color:#fff;padding:84px 0 72px}
.hero:after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;right:-160px;top:-230px;background:rgba(255,255,255,.08)}
.hero .container{position:relative;z-index:1}.hero-kicker{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem .75rem;border-radius:999px;background:rgba(255,255,255,.12);font-size:.9rem}
.hero h1{font-weight:800;line-height:1.15;letter-spacing:-.5px}.hero p{color:rgba(255,255,255,.78);max-width:650px}
.hero-preview{background:#fff;border-radius:24px;padding:14px;box-shadow:0 24px 60px rgba(0,0,0,.24);transform:rotate(1.5deg)}
.hero-preview img{border-radius:16px;width:100%;height:auto;display:block}
.section-pad{padding:72px 0}.section-soft{background:var(--soft)}.section-title{font-weight:800;letter-spacing:-.3px}.section-subtitle{color:var(--muted);max-width:720px}
.product-card{height:100%;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff;transition:.2s ease;box-shadow:0 8px 26px rgba(16,24,40,.05)}
.product-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(16,24,40,.1)}
.product-card .media{aspect-ratio:16/9;background:#eef3f8;overflow:hidden}.product-card .media img{width:100%;height:100%;object-fit:cover}.product-card .body{padding:24px}.badge-soft{background:var(--sky);color:#0d5fb8;border:1px solid #d5e9ff}
.icon-box{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:var(--sky);color:#1267bd;font-size:1.4rem}.feature{border:1px solid var(--line);border-radius:18px;padding:22px;background:#fff;height:100%}
.page-hero{padding:58px 0;background:linear-gradient(180deg,#f1f7ff,#fff);border-bottom:1px solid var(--line)}.page-hero h1{font-weight:800}.page-hero p{color:var(--muted)}
.content-card{border:1px solid var(--line);border-radius:22px;background:#fff;padding:28px;box-shadow:0 8px 28px rgba(16,24,40,.05)}
.responsive-shot{width:100%;height:auto;border-radius:18px;border:1px solid var(--line);box-shadow:0 10px 30px rgba(16,24,40,.08)}
.phone-shot{border-radius:24px;border:1px solid var(--line);box-shadow:0 12px 30px rgba(16,24,40,.1);width:100%;height:auto}
.download-item{display:flex;align-items:center;gap:16px;border:1px solid var(--line);border-radius:16px;padding:18px;background:#fff;transition:.2s}.download-item:hover{border-color:#b9d8fa;background:#fafdff}.download-item .icon{font-size:1.5rem;color:#176bc0}.download-item strong{display:block;color:var(--ink)}.download-item small{color:var(--muted)}
.video-wrap{position:relative;padding-top:56.25%;border-radius:18px;overflow:hidden;background:#111}.video-wrap iframe,.video-wrap video{position:absolute;inset:0;width:100%;height:100%;border:0}
.contact-card{border:1px solid var(--line);border-radius:18px;padding:22px;height:100%;background:#fff}.contact-card i{font-size:1.5rem;color:#146dc6}
.site-footer{background:#071e34;color:#fff}.site-footer a{display:block;color:rgba(255,255,255,.65);margin:.45rem 0}.site-footer a:hover{color:#fff}.footer-title{font-size:.9rem;text-transform:uppercase;letter-spacing:.08em;color:#fff;margin-bottom:1rem}
.price{font-weight:800;color:#0d5fb8}.small-note{font-size:.9rem;color:var(--muted)}
@media(max-width:991.98px){.hero{padding:58px 0}.hero-preview{margin-top:28px;transform:none}.section-pad{padding:54px 0}.navbar-collapse{padding:12px 0}.navbar .btn{margin-top:8px}}
@media(max-width:575.98px){.hero h1{font-size:2rem}.page-hero{padding:42px 0}.content-card{padding:20px}.section-pad{padding:44px 0}.product-card .body{padding:20px}}