:root{
  --ink:#241B19;--slate:#5A2E26;--slate2:#6B5A55;--stone:#EFE6D6;--stone2:#FAF6EE;
  --rust:#B36A12;--rust-d:#8A4E08;--line:#DDD2BF;--white:#fff;
  --r:14px;--shadow:0 10px 30px rgba(30,35,40,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Sarabun',sans-serif;color:var(--ink);background:var(--stone2);line-height:1.75;font-size:17px}
h1,h2,h3,h4{font-family:'Kanit',sans-serif;line-height:1.3;color:var(--slate)}
img{max-width:100%;display:block}
a{color:var(--rust-d);text-decoration:none}
.container{width:min(1160px,92%);margin:0 auto}
.section{padding:78px 0}
.section-tight{padding:40px 0}
.eyebrow{font-family:'Kanit';font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;color:var(--rust);font-weight:500;margin-bottom:8px}
.section-title{font-size:clamp(1.7rem,3.4vw,2.4rem);margin-bottom:14px}
.lead{color:var(--slate2);max-width:760px;margin-bottom:34px}
.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--ink);border-bottom:3px solid var(--rust)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:'Kanit';font-weight:600;font-size:1.15rem}
.brand .logo{width:40px;height:40px;background:var(--rust);color:#fff;display:grid;place-items:center;border-radius:8px;font-size:1.15rem;font-weight:700}
.brand small{display:block;font-size:.68rem;font-weight:300;color:#b9c0c6;letter-spacing:.08em}
nav.main-nav{display:flex;gap:4px;align-items:center}
nav.main-nav a{color:#dfe3e6;padding:8px 14px;border-radius:8px;font-family:'Kanit';font-size:.95rem}
nav.main-nav a:hover,nav.main-nav a.active{background:var(--slate);color:#fff}
nav.main-nav a.nav-cta{background:var(--rust);color:#fff}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:1.8rem;cursor:pointer}

/* rebar strip */
.rebar-strip{height:14px;background:
 repeating-linear-gradient(90deg,var(--rust) 0 4px,transparent 4px 22px),
 linear-gradient(var(--slate),var(--slate));background-blend-mode:normal}
.rebar-strip{background:repeating-linear-gradient(90deg,transparent 0 18px,var(--rust) 18px 22px),var(--slate)}

/* hero */
.hero{position:relative;color:#fff;min-height:600px;display:flex;align-items:center;overflow:hidden}
.hero-media,.hero-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,24,28,.92) 0%,rgba(20,24,28,.7) 50%,rgba(20,24,28,.25) 100%)}
.hero-inner{position:relative;z-index:2;padding:80px 0;max-width:720px}
.hero h1{color:#fff;font-size:clamp(2rem,5vw,3.4rem);margin-bottom:16px}
.hero h1 span{color:var(--rust)}
.hero p{font-size:1.1rem;color:#e6e9ec;margin-bottom:26px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap}
.hero-badges span{border:1px solid rgba(255,255,255,.35);padding:4px 14px;border-radius:99px;font-size:.88rem;background:rgba(0,0,0,.25)}
.page-hero{min-height:340px}
.page-hero .hero-inner{padding:60px 0}
.btn{display:inline-block;padding:12px 26px;border-radius:10px;font-family:'Kanit';font-weight:500;border:2px solid transparent;cursor:pointer;font-size:1rem;transition:.2s}
.btn-primary{background:var(--rust);color:#fff}.btn-primary:hover{background:var(--rust-d)}
.btn-ghost{border-color:#fff;color:#fff;background:transparent}.btn-ghost:hover{background:#fff;color:var(--ink)}
.btn-dark{background:var(--slate);color:#fff}.btn-dark:hover{background:var(--ink)}

/* promo banner */
.promo-banner{position:relative;border-radius:var(--r);overflow:hidden;min-height:260px;display:flex;align-items:center;box-shadow:var(--shadow)}
.promo-banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.promo-banner::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(224,102,31,.92),rgba(47,58,67,.8) 65%,rgba(47,58,67,.35))}
.promo-text{position:relative;z-index:2;padding:36px 44px;color:#fff;max-width:640px}
.promo-text h2{color:#fff;margin-bottom:10px;font-size:1.9rem}

/* grids */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.rounded-img{border-radius:var(--r);box-shadow:var(--shadow);width:100%;height:100%;object-fit:cover;min-height:320px}

/* batch ticket card */
.batch-ticket{background:#fff;border:2px dashed var(--slate2);border-radius:var(--r);padding:26px;position:relative;box-shadow:var(--shadow)}
.batch-ticket::before{content:"ใบส่งสินค้า / DELIVERY TICKET";position:absolute;top:-13px;left:20px;background:var(--rust);color:#fff;font-family:'Kanit';font-size:.78rem;padding:2px 14px;border-radius:6px;letter-spacing:.06em}
.spec-row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px dotted var(--line);font-size:.97rem}
.spec-row:last-child{border:0}
.spec-row b{font-family:'Kanit';font-weight:500;color:var(--slate);min-width:120px}
.spec-row span{text-align:right}
.badge-strip{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.badge-strip span{background:var(--stone);border-left:4px solid var(--rust);padding:4px 14px;border-radius:4px;font-size:.9rem}

/* cards */
.feature-card{background:#fff;border-radius:var(--r);padding:28px;border-top:5px solid var(--rust);box-shadow:var(--shadow)}
.feature-card .num{font-family:'Kanit';font-size:2.2rem;color:var(--rust);font-weight:600;line-height:1}
.feature-card h3{margin:8px 0;font-size:1.15rem}
.feature-card p{color:var(--slate2);font-size:.96rem}
.media-card{background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.media-card img{height:210px;width:100%;object-fit:cover}
.media-card .body{padding:22px}
.media-card h3{font-size:1.2rem;margin-bottom:6px}
.media-card p{color:var(--slate2);font-size:.96rem}
.media-card ul{margin:10px 0 0 20px;color:var(--slate2);font-size:.94rem}
.tag{display:inline-block;background:var(--rust);color:#fff;font-size:.75rem;padding:1px 10px;border-radius:99px;margin-bottom:8px;font-family:'Kanit'}

/* dark texture */
.dark-section{background:var(--ink);color:#e4e7ea;position:relative;
 background-image:radial-gradient(rgba(255,255,255,.05) 1.2px,transparent 1.4px),radial-gradient(rgba(255,255,255,.035) 1px,transparent 1.2px);
 background-size:22px 22px,13px 13px;background-position:0 0,7px 9px}
.dark-section h2,.dark-section h3{color:#fff}
.dark-section .lead{color:#b9c0c6}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:s}
.step{background:var(--slate);border-radius:var(--r);padding:22px;border-bottom:4px solid var(--rust);counter-increment:s}
.step::before{content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--rust);color:#fff;font-family:'Kanit';font-weight:600;margin-bottom:10px}
.step h3{font-size:1.05rem;margin-bottom:4px}
.step p{font-size:.92rem;color:#c3cad0}

/* faq */
.faq-item{background:#fff;border-radius:12px;margin-bottom:12px;padding:0 22px;border:1px solid var(--line)}
.faq-item summary{cursor:pointer;padding:16px 0;font-family:'Kanit';font-weight:500;color:var(--slate);list-style:none}
.faq-item summary::before{content:"+";color:var(--rust);font-weight:700;margin-right:10px}
.faq-item[open] summary::before{content:"–"}
.faq-item p{padding:0 0 18px;color:var(--slate2)}

.cta-band{background:linear-gradient(120deg,var(--rust),var(--rust-d));color:#fff;padding:54px 0;text-align:center}
.cta-band h2{color:#fff;margin-bottom:8px}
.cta-band p{margin-bottom:20px}
.cta-band .btn-dark{background:var(--ink)}

/* prose */
.prose p{margin-bottom:16px;color:#33393f}
.prose h2{margin:34px 0 12px;font-size:1.5rem}
.prose ul{margin:0 0 16px 22px}
table.data{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow)}
table.data th{background:var(--slate);color:#fff;font-family:'Kanit';font-weight:500;padding:12px 16px;text-align:left}
table.data td{padding:12px 16px;border-bottom:1px solid var(--line);font-size:.95rem}
.table-wrap{overflow-x:auto}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:36px}
.contact-item{display:flex;gap:14px;background:#fff;padding:18px;border-radius:12px;margin-bottom:12px;border-left:5px solid var(--rust);box-shadow:var(--shadow)}
.contact-item .ic{width:44px;height:44px;border-radius:10px;background:var(--slate);color:#fff;display:grid;place-items:center;font-size:1.2rem;flex:none}
.contact-item b{font-family:'Kanit';color:var(--slate);display:block}
form.inquiry{background:#fff;padding:28px;border-radius:var(--r);box-shadow:var(--shadow)}
form.inquiry label{display:block;font-family:'Kanit';font-size:.92rem;margin:12px 0 4px;color:var(--slate)}
form.inquiry input,form.inquiry textarea,form.inquiry select{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font:inherit;background:var(--stone2)}
form.inquiry textarea{min-height:120px}
form.inquiry button{margin-top:18px;width:100%}
.map-frame{border:0;width:100%;height:380px;border-radius:var(--r);box-shadow:var(--shadow)}

/* footer */
.site-footer{background:var(--ink);color:#b9c0c6;padding:56px 0 0;border-top:3px solid var(--rust)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:36px;padding-bottom:36px}
.site-footer h4{color:#fff;margin-bottom:12px}
.site-footer a{color:#b9c0c6;display:block;padding:2px 0}.site-footer a:hover{color:var(--rust)}
.copy{border-top:1px solid #333b42;padding:16px 0;text-align:center;font-size:.88rem}

.reveal{opacity:0;transform:translateY(22px);transition:.7s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

@media(max-width:900px){
 .grid-2,.contact-grid,.footer-grid{grid-template-columns:1fr}
 .grid-3,.grid-4,.timeline{grid-template-columns:1fr 1fr}
 .nav-toggle{display:block}
 nav.main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--ink);flex-direction:column;padding:12px;align-items:stretch}
 nav.main-nav.open{display:flex}
 .promo-text{padding:26px}
}
@media(max-width:560px){.grid-3,.grid-4,.timeline{grid-template-columns:1fr}.section{padding:54px 0}}
.rebar-strip{height:18px;background:radial-gradient(circle at 12px 9px,transparent 0 3px,var(--rust) 3.5px 6px,transparent 6.5px) 0 0/24px 18px,var(--slate)}
.batch-ticket::before{content:"ใบสั่งผลิต / PRODUCTION ORDER"}
.hero-media::after{background:linear-gradient(100deg,rgba(36,27,25,.92) 0%,rgba(36,27,25,.7) 50%,rgba(36,27,25,.25) 100%)}
.promo-banner::after{background:linear-gradient(90deg,rgba(179,106,18,.92),rgba(90,46,38,.8) 65%,rgba(90,46,38,.35))}
.site-footer h4{color:#fff}