:root{
  --navy:#17392a;--navy-2:#215c40;--gold:#e0912f;--gold-soft:#f7e6cd;
  --ink:#1f2a24;--muted:#5f7268;--line:#e2eae5;--bg:#f5f8f6;--white:#fff;
  --radius:14px;--shadow:0 10px 30px rgba(23,57,42,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"IBM Plex Sans Thai",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.85;font-size:17px}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
a{color:var(--navy-2);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{width:min(1160px,92%);margin-inline:auto}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;padding:12px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy)}
.brand-mark{width:44px;height:44px;border-radius:12px;background:var(--navy);color:var(--gold);display:grid;place-items:center;font-weight:700;letter-spacing:.5px}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;letter-spacing:.6px}
.brand-text small{color:var(--muted);font-size:12px}
.site-nav{display:flex;gap:6px;margin-inline-start:auto;flex-wrap:wrap}
.site-nav a{padding:8px 13px;border-radius:999px;color:var(--ink);font-size:15px;font-weight:500}
.site-nav a:hover{background:var(--bg);text-decoration:none}
.site-nav a.active{background:var(--navy);color:#fff}
.cta-phone{background:var(--gold);color:#2a1a05;font-weight:700;padding:9px 16px;border-radius:999px;font-size:14px}
.cta-phone:hover{text-decoration:none;filter:brightness(1.05)}
.navtoggle,.burger{display:none}

/* hero */
.hero{background-size:cover;background-position:center;color:#fff;padding:96px 0 88px;text-align:center}
.hero h1{font-size:clamp(28px,4.4vw,46px);line-height:1.35;margin:0 0 14px;font-weight:700}
.hero-sub{max-width:820px;margin:0 auto 26px;color:#e6efe9;font-size:18px}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 24px;border-radius:999px;font-weight:600}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--gold);color:#2a1a05}
.btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff}

/* main */
.main{padding:52px 0 70px}
section{margin-bottom:46px;scroll-margin-top:90px}
h2{font-size:clamp(22px,2.6vw,30px);color:var(--navy);margin:0 0 14px;line-height:1.45;font-weight:700}
h3{font-size:20px;color:var(--navy-2);margin:26px 0 8px}
h4{margin:0 0 8px}
p{margin:0 0 14px;text-align:justify;text-justify:inter-word}
ul,ol{padding-inline-start:22px}
li{margin-bottom:6px}

.lead{font-size:19px;color:var(--navy-2);font-weight:500}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow)}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:22px}
.figure{margin:0 0 18px}
.figure figcaption{font-size:14px;color:var(--muted);margin-top:8px;text-align:center}
.media{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}
.media.rev .media-text{order:2}
@media(max-width:820px){.media{grid-template-columns:1fr}.media.rev .media-text{order:0}}

.toc{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px 26px}
.toc ol{columns:2;column-gap:32px;margin:0}
@media(max-width:700px){.toc ol{columns:1}}

table{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:15.5px}
th,td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:start;vertical-align:top}
th{background:var(--navy);color:#fff;font-weight:600}
tbody tr:nth-child(even){background:#f8fbf9}

.callout{border-inline-start:5px solid var(--gold);background:var(--gold-soft);padding:18px 22px;border-radius:0 var(--radius) var(--radius) 0}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;text-align:center}
.stat{background:var(--navy);color:#fff;border-radius:var(--radius);padding:22px}
.stat b{display:block;font-size:30px;color:var(--gold)}
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:8px 20px}
.faq details{border-bottom:1px solid var(--line);padding:12px 0}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy)}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}

/* footer */
.site-footer{background:var(--navy);color:#cfded5;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:30px;padding:46px 0 30px}
.site-footer h4{color:#fff;font-size:16px}
.site-footer p{font-size:15px;margin-bottom:6px;text-align:start}
.site-footer a{color:var(--gold)}
.footer-links{list-style:none;padding:0;margin:0}
.copyright{border-top:1px solid rgba(255,255,255,.14);padding:14px 0;font-size:14px}

@media(max-width:900px){
  .navtoggle:not(:checked)~.site-nav{display:none}
  .site-nav{width:100%;flex-direction:column;order:9}
  .burger{display:flex;flex-direction:column;gap:4px;margin-inline-start:auto;cursor:pointer;padding:8px}
  .burger span{width:24px;height:2px;background:var(--navy);display:block}
  .cta-phone{font-size:13px;padding:8px 12px}
}