:root{
  --navy:#141d2b;
  --navy2:#1d2a3d;
  --amber:#f0941f;
  --amber2:#e07914;
  --amber-grad:linear-gradient(135deg,#f6a93b,#e07914);
  --ink:#243247;
  --muted:#64748b;
  --line:#e6e9ef;
  --bg:#f6f7f9;
  --radius:14px;
  --shadow:0 10px 30px rgba(20,29,43,.10);
  --font-head:'Kanit',sans-serif;
  --font-body:'Sarabun','Noto Sans Thai',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--ink);background:#fff;line-height:1.75;font-size:16.5px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;line-height:1.35}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-family:var(--font-head);font-weight:500;font-size:16px;transition:.25s;border:0;cursor:pointer}
.btn-amber{background:var(--amber-grad);color:#fff;box-shadow:0 6px 18px rgba(224,121,20,.35)}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(224,121,20,.45)}
.btn-outline{border:1.5px solid rgba(255,255,255,.75);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy2)}

/* topbar */
.topbar{background:var(--navy);color:#cbd5e1;font-size:14px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding-top:7px;padding-bottom:7px;gap:12px}
.topbar a{color:#fff}
.topbar .tb-right{display:flex;gap:18px;white-space:nowrap}
@media(max-width:640px){.topbar .tb-left{display:none}.topbar .container{justify-content:center}}

/* header */
header.site{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:26px;padding:12px 20px;max-width:1180px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;margin-right:auto}
.brand img{width:52px;height:52px;object-fit:contain;border-radius:10px}
.brand .b-name{font-family:var(--font-head);font-weight:600;font-size:19px;color:var(--navy);line-height:1.2}
.brand .b-sub{font-size:12.5px;color:var(--muted)}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{padding:9px 15px;border-radius:9px;font-family:var(--font-head);font-weight:400;font-size:15.5px;color:var(--ink)}
.nav-links a:hover,.nav-links a.active{color:var(--amber2);background:#fdf3e5}
.nav .call-btn{background:var(--amber-grad);color:#fff;padding:10px 20px;border-radius:999px;font-family:var(--font-head);display:flex;align-items:center;gap:8px;box-shadow:0 4px 14px rgba(224,121,20,.3)}
.menu-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px}
.menu-toggle span{display:block;width:24px;height:2.5px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.3s}
@media(max-width:920px){
  .menu-toggle{display:block}
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav-links.open{display:flex}
  .nav .call-btn span.t{display:none}
}
@media(max-width:560px){.brand .b-sub{display:none}}

/* hero slider */
.hero{position:relative;height:min(78vh,640px);min-height:460px;overflow:hidden;background:var(--navy)}
.slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease}
.slide.on{opacity:1}
.slide img{width:100%;height:100%;object-fit:cover;object-position:center}
.slide .shade{position:absolute;inset:0;background:linear-gradient(100deg,rgba(13,19,30,.82) 5%,rgba(13,19,30,.45) 48%,rgba(13,19,30,.15))}
.slide .s-content{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center;max-width:1180px;margin:0 auto;padding:0 20px;color:#fff}
.s-kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(240,148,31,.16);border:1px solid rgba(240,148,31,.45);color:#ffce8f;padding:6px 16px;border-radius:999px;font-size:14px;font-family:var(--font-head);width:fit-content;margin-bottom:18px}
.slide h1,.slide .h1{font-size:clamp(30px,5vw,52px);font-weight:700;max-width:640px;text-shadow:0 2px 18px rgba(0,0,0,.35)}
.slide p{font-size:clamp(16px,2vw,20px);max-width:560px;margin:14px 0 28px;color:#e5eaf2}
.hero-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:9px;z-index:5}
.hero-dots button{width:34px;height:5px;border-radius:99px;border:0;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s}
.hero-dots button.on{background:var(--amber)}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);color:#fff;width:46px;height:46px;border-radius:50%;cursor:pointer;font-size:20px;display:flex;align-items:center;justify-content:center;transition:.25s}
.hero-arrow:hover{background:var(--amber)}
.hero-arrow.prev{left:18px}.hero-arrow.next{right:18px}
@media(max-width:640px){.hero-arrow{display:none}}

/* trust bar */
.trust{background:var(--navy);color:#fff;padding:0}
.trust .container{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.08)}
.trust .t-item{background:var(--navy);padding:26px 18px;text-align:center}
.trust .t-item b{display:block;font-family:var(--font-head);font-size:20px;color:var(--amber);font-weight:600}
.trust .t-item span{font-size:14.5px;color:#aab6c8}
@media(max-width:760px){.trust .container{grid-template-columns:repeat(2,1fr)}}

/* sections */
section{padding:72px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 46px}
.sec-kicker{display:inline-block;color:var(--amber2);font-family:var(--font-head);font-weight:500;font-size:15px;letter-spacing:.5px;background:#fdf3e5;padding:5px 16px;border-radius:999px;margin-bottom:12px}
.sec-head h2{font-size:clamp(26px,3.6vw,38px);color:var(--navy);font-weight:700}
.sec-head p{color:var(--muted);margin-top:10px}
.alt{background:var(--bg)}

/* service cards */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.svc-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:.3s;border:1px solid var(--line)}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(20,29,43,.16)}
.svc-card .sc-img{height:230px;overflow:hidden;position:relative}
.svc-card .sc-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.svc-card:hover .sc-img img{transform:scale(1.06)}
.svc-card .sc-num{position:absolute;top:14px;left:14px;background:var(--amber-grad);color:#fff;font-family:var(--font-head);font-weight:600;width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:17px;box-shadow:0 4px 12px rgba(0,0,0,.25)}
.svc-card .sc-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.svc-card h3{font-size:21px;color:var(--navy);margin-bottom:8px}
.svc-card p{color:var(--muted);font-size:15.5px;flex:1}
.svc-card .sc-link{margin-top:18px;color:var(--amber2);font-family:var(--font-head);font-weight:500;display:inline-flex;align-items:center;gap:6px}
.svc-card .sc-link:hover{gap:10px}
@media(max-width:920px){.svc-grid{grid-template-columns:1fr}}

/* why us */
.why{background:linear-gradient(160deg,var(--navy) 0%,#0f1826 100%);color:#fff;position:relative;overflow:hidden}
.why:before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(240,148,31,.18),transparent 65%)}
.why .sec-head h2{color:#fff}
.why .sec-head p{color:#9fb0c7}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.why-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:var(--radius);padding:26px}
.why-item .w-ico{width:48px;height:48px;border-radius:13px;background:var(--amber-grad);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.why-item h3{font-size:18px;margin-bottom:6px}
.why-item p{color:#9fb0c7;font-size:15px}
@media(max-width:920px){.why-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.why-grid{grid-template-columns:1fr}}

/* promotions */
.promo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.promo-card{background:linear-gradient(135deg,#fff8ec,#fdeed7);border:1.5px dashed var(--amber);border-radius:var(--radius);padding:26px}
.promo-card h3{color:var(--amber2);font-size:20px;margin-bottom:6px}
.promo-card p{color:var(--ink)}

/* gallery */
.gal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.gal-item{position:relative;border-radius:12px;overflow:hidden;cursor:pointer;aspect-ratio:4/3;background:#e2e8f0}
.gal-item img{width:100%;height:100%;object-fit:cover;transition:.45s}
.gal-item:hover img{transform:scale(1.07)}
.gal-item .g-cap{position:absolute;inset:auto 0 0 0;background:linear-gradient(transparent,rgba(13,19,30,.85));color:#fff;padding:26px 14px 12px;font-size:14px;opacity:0;transition:.3s}
.gal-item:hover .g-cap{opacity:1}
@media(max-width:820px){.gal-grid{grid-template-columns:1fr 1fr}}
.lightbox{position:fixed;inset:0;background:rgba(10,14,22,.92);display:none;align-items:center;justify-content:center;z-index:200;padding:24px;flex-direction:column;gap:14px}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1100px,94vw);max-height:82vh;border-radius:10px;object-fit:contain}
.lightbox .lb-cap{color:#cbd5e1}
.lightbox .lb-x{position:absolute;top:18px;right:22px;background:none;border:0;color:#fff;font-size:34px;cursor:pointer}

/* faq */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-wrap details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-wrap summary{padding:18px 22px;cursor:pointer;font-family:var(--font-head);font-weight:500;font-size:16.5px;color:var(--navy);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-wrap summary::-webkit-details-marker{display:none}
.faq-wrap summary:after{content:"+";font-size:22px;color:var(--amber2);transition:.25s}
.faq-wrap details[open] summary:after{transform:rotate(45deg)}
.faq-wrap details p{padding:0 22px 18px;color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start}
.c-form{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:32px;border:1px solid var(--line)}
.c-form h3{font-size:22px;color:var(--navy);margin-bottom:4px}
.c-form .f-sub{color:var(--muted);font-size:15px;margin-bottom:20px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.c-form label{display:block;font-family:var(--font-head);font-size:14.5px;font-weight:500;margin:14px 0 6px;color:var(--navy)}
.c-form input,.c-form select,.c-form textarea{width:100%;padding:12px 15px;border:1.5px solid var(--line);border-radius:10px;font-family:var(--font-body);font-size:15.5px;background:#fbfcfe;transition:.2s}
.c-form input:focus,.c-form select:focus,.c-form textarea:focus{outline:0;border-color:var(--amber);background:#fff;box-shadow:0 0 0 3px rgba(240,148,31,.15)}
.c-form button{margin-top:20px;width:100%;justify-content:center}
.form-msg{margin-top:14px;padding:12px 16px;border-radius:10px;font-size:15px;display:none}
.form-msg.ok{display:block;background:#e8f7ee;color:#166534;border:1px solid #b7e4c7}
.form-msg.err{display:block;background:#fdeaea;color:#b91c1c;border:1px solid #f5c2c2}
.c-info .ci-card{background:var(--navy);color:#fff;border-radius:var(--radius);padding:30px;margin-bottom:18px}
.c-info .ci-card h3{font-size:20px;margin-bottom:16px;color:#fff}
.ci-row{display:flex;gap:14px;margin-bottom:16px;align-items:flex-start}
.ci-row .ci-ico{width:42px;height:42px;flex:none;border-radius:11px;background:rgba(240,148,31,.18);display:flex;align-items:center;justify-content:center;font-size:19px}
.ci-row b{display:block;font-family:var(--font-head);font-weight:500;font-size:15px;color:#ffce8f}
.ci-row span,.ci-row a{color:#dbe3ee;font-size:15px}
.map-embed{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
.map-embed iframe{width:100%;height:280px;border:0;display:block}
@media(max-width:920px){.contact-grid{grid-template-columns:1fr}.f-row{grid-template-columns:1fr}}

/* cta band */
.cta-band{background:var(--amber-grad);color:#fff;padding:52px 0}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,3vw,30px);font-weight:600}
.cta-band p{opacity:.9}
.cta-band .btn{background:#fff;color:var(--amber2)}

/* page hero (inner pages) */
.page-hero{background:linear-gradient(120deg,rgba(13,19,30,.88),rgba(13,19,30,.55)),var(--ph-img,none) center/cover;padding:76px 0 64px;color:#fff}
.page-hero h1{font-size:clamp(28px,4.5vw,44px);font-weight:700}
.page-hero .crumbs{font-size:14.5px;color:#b8c4d6;margin-bottom:10px}
.page-hero .crumbs a{color:#ffce8f}

/* service detail */
.sd-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:start}
.sd-feat{background:var(--bg);border-radius:var(--radius);padding:26px 28px;border:1px solid var(--line)}
.sd-feat h3{color:var(--navy);font-size:19px;margin-bottom:12px}
.sd-feat li{list-style:none;padding:9px 0 9px 32px;position:relative;border-bottom:1px dashed var(--line);font-size:15.5px}
.sd-feat li:last-child{border-bottom:0}
.sd-feat li:before{content:"✓";position:absolute;left:2px;top:9px;width:22px;height:22px;background:var(--amber-grad);color:#fff;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:13px}
.sd-imgs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:26px}
.sd-imgs .gal-item{aspect-ratio:4/3}
@media(max-width:920px){.sd-grid{grid-template-columns:1fr}}

/* about */
.mission-list li{list-style:none;padding:10px 0 10px 34px;position:relative;font-size:16px}
.mission-list li:before{content:"★";position:absolute;left:0;color:var(--amber);top:10px}

/* footer */
footer.site{background:#0e1622;color:#93a3b8;padding:60px 0 0;font-size:15px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:40px}
.foot-grid h4{color:#fff;font-size:16.5px;margin-bottom:16px;font-weight:500}
.foot-grid a{display:block;padding:5px 0;color:#93a3b8}
.foot-grid a:hover{color:var(--amber)}
.f-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.f-brand img{width:46px;height:46px;border-radius:10px;object-fit:contain;background:#fff}
.f-brand b{color:#fff;font-family:var(--font-head);font-size:18px;font-weight:600}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;text-align:center;font-size:13.5px;color:#5f7188}
@media(max-width:920px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}

/* floating buttons */
.float-btns{position:fixed;right:18px;bottom:18px;display:flex;flex-direction:column;gap:12px;z-index:100}
.float-btns a{width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;box-shadow:0 8px 22px rgba(0,0,0,.28);transition:.25s}
.float-btns a:hover{transform:scale(1.1)}
.fb-call{background:var(--amber-grad)}
.fb-line{background:#06c755}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}