:root{
  --navy:#0b2f5b; --blue:#1652a3; --sky:#e8f0fb; --steel:#5d6b7c;
  --accent:#e0a100; --ink:#1b2430; --muted:#5b6675; --line:#dfe4ea;
  --bg:#ffffff; --bg-alt:#f4f6f9; --radius:10px;
  --shadow:0 6px 24px rgba(11,47,91,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"IBM Plex Sans Thai","Segoe UI",Tahoma,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.3;color:var(--navy);margin:0 0 .5em}
h1{font-size:clamp(1.7rem,3.6vw,2.6rem)}
h2{font-size:clamp(1.4rem,2.6vw,2rem)}
h3{font-size:1.1rem}
.eyebrow{display:inline-block;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:.4rem}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;color:var(--navy);font-weight:700;letter-spacing:.04em}
.brand:hover{text-decoration:none}
.brand img{height:42px;width:auto}
.brand small{display:block;font-weight:400;font-size:.72rem;color:var(--muted);letter-spacing:.02em}
.nav{display:flex;gap:4px}
.nav a{color:var(--ink);padding:8px 12px;border-radius:8px;font-size:.95rem}
.nav a:hover,.nav a.on{background:var(--sky);color:var(--navy);text-decoration:none}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;font:inherit;cursor:pointer;color:var(--navy)}
@media (max-width:860px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:8px 16px 16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav a{padding:12px}
}

/* hero */
.hero{position:relative;min-height:min(78vh,640px);display:flex;align-items:flex-end;color:#fff;background:#0b2f5b center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,22,45,.15) 0%,rgba(6,22,45,.78) 100%)}
.hero .wrap{position:relative;padding-bottom:64px;padding-top:120px;width:100%}
.hero h1{color:#fff;max-width:760px}
.hero p{max-width:620px;font-size:1.1rem;opacity:.92;margin:0 0 1.4em}
.btn{display:inline-block;padding:12px 22px;border-radius:999px;background:var(--accent);color:#1b1b1b;font-weight:600;border:0}
.btn:hover{text-decoration:none;filter:brightness(1.06)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7);margin-left:8px}
.btn.dark{background:var(--navy);color:#fff}

/* sections */
section.block{padding:72px 0}
section.alt{background:var(--bg-alt)}
.head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.head p{margin:0;color:var(--muted)}
.page-title{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;padding:56px 0 44px}
.page-title h1{color:#fff;margin:0}
.page-title p{margin:.4em 0 0;opacity:.85}
.crumb{font-size:.85rem;opacity:.8;margin-bottom:.6em}
.crumb a{color:#fff}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-48px;position:relative;z-index:2}
.stat{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;text-align:center}
.stat b{display:block;font-size:clamp(1.25rem,2.4vw,1.8rem);color:var(--navy);white-space:nowrap}
.stat span{color:var(--muted);font-size:.92rem}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,1fr)}}

/* cards */
.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(270px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s;color:inherit}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);text-decoration:none}
.card .ph{aspect-ratio:4/3;background:var(--sky);overflow:hidden}
.card .ph img{width:100%;height:100%;object-fit:cover}
.card .bd{padding:16px 18px 18px;flex:1;display:flex;flex-direction:column;gap:6px}
.card h3{margin:0;font-size:1.05rem}
.meta{color:var(--muted);font-size:.86rem}
.kv{margin:4px 0 0;padding:0;list-style:none;font-size:.9rem;color:var(--muted)}
.kv li b{color:var(--ink);font-weight:500}
.tag{align-self:flex-start;font-size:.75rem;background:var(--sky);color:var(--navy);padding:2px 10px;border-radius:999px}

/* two-col */
.split{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:28px}}
.split img{border-radius:var(--radius);box-shadow:var(--shadow)}
.ticks{list-style:none;padding:0;margin:1em 0}
.ticks li{padding-left:28px;position:relative;margin:.5em 0}
.ticks li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:8px;border-left:3px solid var(--accent);border-bottom:3px solid var(--accent);transform:rotate(-45deg)}

/* gallery */
.photos{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.photos a{display:block;aspect-ratio:4/3;overflow:hidden;border-radius:8px;background:var(--sky)}
.photos img{width:100%;height:100%;object-fit:cover;transition:transform .25s}
.photos a:hover img{transform:scale(1.05)}
.lb{position:fixed;inset:0;background:rgba(5,12,24,.94);display:none;align-items:center;justify-content:center;z-index:100}
.lb.open{display:flex}
.lb img{max-width:94vw;max-height:86vh;border-radius:4px}
.lb button{position:absolute;background:rgba(255,255,255,.12);color:#fff;border:0;width:48px;height:48px;border-radius:50%;font-size:1.5rem;cursor:pointer}
.lb .x{top:16px;right:16px}.lb .p{left:16px}.lb .n{right:16px}
.lb .c{position:absolute;bottom:16px;left:0;right:0;text-align:center;color:#cfd6df;font-size:.9rem}

/* article */
.article{max-width:820px}
.article .cover{border-radius:var(--radius);margin:0 auto 24px;box-shadow:var(--shadow)}
.article p{margin:.6em 0}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:32px}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
.box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin-bottom:16px}
.box h3{margin-bottom:.3em}
.phones{list-style:none;margin:0;padding:0}
.phones li{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px dashed var(--line)}
.phones li:last-child{border:0}
.map{width:100%;height:100%;height:420px;min-height:380px;border:0;border-radius:var(--radius);margin-bottom:12px}

/* cta + footer */
.cta{background:linear-gradient(135deg,var(--navy),var(--blue));color:#fff;border-radius:16px;padding:40px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta h2{color:#fff;margin:0}
.cta p{margin:.3em 0 0;opacity:.85}
footer{background:#08213f;color:#b9c4d2;padding:48px 0 24px;margin-top:72px;font-size:.92rem}
footer a{color:#dfe7f1}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px}
@media (max-width:760px){footer .cols{grid-template-columns:1fr}}
footer h4{color:#fff;margin:0 0 .6em;font-size:1rem}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin:.3em 0}
footer .copy{border-top:1px solid rgba(255,255,255,.1);margin-top:32px;padding-top:16px;font-size:.82rem}
.center{text-align:center}
.mt{margin-top:28px}
.imgdoc{margin:0 auto 24px;border-radius:var(--radius);border:1px solid var(--line)}
@media (max-width:600px){
  .brand small{display:none}
  .brand{font-size:.95rem}
  .brand img{height:36px}
  .menu-btn{white-space:nowrap}
  .hero .wrap{padding-top:80px;padding-bottom:72px}
  .btn.ghost{margin-left:0;margin-top:10px}
  section.block{padding:52px 0}
}

/* services */
.svc{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.svc-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;border-top:4px solid var(--accent)}
.svc-item h3{margin:.7em 0 0}
.svc-item p{margin:.6em 0 0;color:var(--muted)}
.svc-ic{width:56px;height:56px;border-radius:12px;background:var(--sky);color:var(--navy);display:flex;align-items:center;justify-content:center}

/* overview (dark band) */
section.dark{background:linear-gradient(135deg,#08213f,var(--navy));color:#dbe4ef}
section.dark h2{color:#fff}
.ov{display:grid;gap:1px;grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.12);border-radius:var(--radius);overflow:hidden}
.ov-item{background:#0b2a50;padding:22px 20px;display:flex;flex-direction:column;gap:2px}
.ov-item span{font-size:.82rem;color:#9fb2c8;letter-spacing:.03em}
.ov-item b{font-size:clamp(1.15rem,2vw,1.45rem);color:#fff;line-height:1.35}
.ov-item small{color:var(--accent);font-size:.85rem}
@media (max-width:860px){.ov{grid-template-columns:repeat(2,1fr)}}

/* partner chips */
.partners{border-top:1px solid var(--line);padding-top:20px}
.partners .meta{margin:0 0 10px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chips span{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 16px;font-weight:600;color:var(--navy);font-size:.92rem;letter-spacing:.02em}