:root{
  --green:#2f7d4f;--green-d:#0f3a26;--green-l:#eaf4ee;
  --gold:#c8a24a;--gold-d:#a07d28;--gold-l:#f6efdc;
  --ink:#1c2722;--mut:#5f6e66;--line:#e7ebe7;--cream:#fbf9f3;
  --serif:'Trirong',Georgia,serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'IBM Plex Sans Thai',system-ui,sans-serif;color:var(--ink);background:var(--cream);line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:var(--green);text-decoration:none}
.wrap{max-width:780px;margin:0 auto;padding:0 22px}

nav.bar{position:sticky;top:0;z-index:30;background:rgba(251,249,243,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
nav.bar .wrap{max-width:1080px;display:flex;align-items:center;height:64px;gap:8px}
nav.bar .logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;color:var(--green-d);font-size:19px}
nav.bar .logo img{width:40px;height:40px;border-radius:8px}
nav.bar .sp{flex:1}
nav.bar a.lnk{color:var(--ink);font-size:14px;padding:8px 12px;border-radius:9px}
nav.bar a.lnk:hover{background:var(--green-l);color:var(--green-d)}
nav.bar a.cta{background:linear-gradient(135deg,#e0c478,var(--gold) 55%,var(--gold-d));color:#3a2d00;font-weight:600;padding:9px 16px;border-radius:11px}

header.hero{background:radial-gradient(120% 120% at 90% -10%,var(--gold-l),rgba(0,0,0,0) 45%),linear-gradient(180deg,#fbf9f3,#f4efe4);border-bottom:1px solid var(--line);padding:52px 0 38px}
header.hero .k{color:var(--gold-d);font-weight:600;letter-spacing:2px;font-size:12px}
header.hero h1{font-family:var(--serif);color:var(--green-d);font-size:34px;line-height:1.28;margin:12px 0 10px}
header.hero .meta{color:var(--mut);font-size:13px}

article{padding:38px 0 6px}
article .lead{font-size:17px;color:#33413a;background:var(--green-l);border-left:4px solid var(--green);padding:16px 18px;border-radius:12px;margin-bottom:26px}
article h2{font-family:var(--serif);color:var(--green-d);font-size:23px;margin:32px 0 10px}
article h3{font-family:var(--serif);color:var(--green-d);font-size:18px;margin:22px 0 6px}
article p{margin:12px 0;font-size:16px}
article ul{margin:10px 0 14px 22px}
article li{margin:7px 0;font-size:16px}
article strong{color:var(--green-d)}
article .tip{background:var(--gold-l);border:1px solid rgba(200,162,74,.4);border-radius:12px;padding:14px 16px;margin:18px 0;font-size:15px}

.cta-box{background:linear-gradient(135deg,#13452c,#0c2c1b);color:#fff;border-radius:18px;padding:30px 26px;margin:36px 0;text-align:center}
.cta-box h3{font-family:var(--serif);color:var(--gold);font-size:22px;margin-bottom:6px}
.cta-box p{color:#cfe0d5;font-size:14px;margin-bottom:16px}
.cta-box .b{display:inline-block;background:linear-gradient(135deg,#e0c478,var(--gold) 55%,var(--gold-d));color:#3a2d00;font-weight:700;padding:12px 24px;border-radius:12px;margin:4px}

.related{border-top:1px solid var(--line);margin-top:30px;padding-top:18px}
.related h3{font-family:var(--serif);color:var(--green-d);font-size:18px;margin-bottom:6px}
.related a{display:block;padding:11px 0;color:var(--green-d);font-weight:600;border-bottom:1px solid var(--line)}

.cards{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:0 22px}
.bcard{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 10px 30px rgba(20,40,30,.05);transition:.18s;display:block}
.bcard:hover{transform:translateY(-4px);box-shadow:0 18px 44px rgba(20,40,30,.1);border-color:rgba(200,162,74,.5)}
.bcard .k{color:var(--gold-d);font-weight:600;font-size:11px;letter-spacing:1.5px}
.bcard h2{font-family:var(--serif);color:var(--green-d);font-size:20px;margin:8px 0}
.bcard p{color:var(--mut);font-size:14.5px}

footer.foot{background:#0f3a26;color:#9fb6a8;font-size:13px;padding:28px 0;margin-top:36px}
footer.foot .wrap{max-width:1080px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer.foot b{color:#fff}
footer.foot a{color:#cfe0d5}

@media(max-width:600px){
  header.hero h1{font-size:26px}
  article{padding:26px 0}
  .cards{grid-template-columns:1fr}
}