/* =========================================================
   ฮวงซุ้ย พรีเมี่ยม — Premium Stylesheet
   Red & Gold Luxury Theme
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+Thai:wght@400;500;600;700;800;900&family=Sarabun:wght@300;400;500;600;700;800&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root{
  /* Premium palette */
  --red-deep:#6B0F0F;
  --red:#8B1414;
  --red-bright:#A91D1D;
  --red-soft:#C84141;
  --gold:#C9A961;
  --gold-bright:#E5C870;
  --gold-deep:#9B7F3D;
  --gold-pale:#F4E4BC;
  --ink:#1A0A0A;
  --ink-soft:#2D1818;
  --cream:#FAF4E8;
  --cream-warm:#F5E9D0;
  --paper:#FFF8EC;
  --line:rgba(201,169,97,.35);
  --shadow-lg:0 30px 70px -25px rgba(107,15,15,.45);
  --shadow-md:0 12px 35px -12px rgba(107,15,15,.35);

  --display:'Noto Serif Thai', 'Cormorant Garamond', serif;
  --body:'Sarabun', system-ui, -apple-system, sans-serif;
  --serif-en:'Cormorant Garamond', serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--body);
  font-weight:400;
  background:var(--paper);
  color:var(--ink);
  line-height:1.7;
  overflow-x:hidden;
  position:relative;
}

/* Subtle paper texture */
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(201,169,97,.04) 0, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(139,20,20,.03) 0, transparent 40%);
  z-index:0;
}

img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:all .3s ease}
button{font-family:inherit;cursor:pointer;border:none;background:none}

.container{max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ─── Typography ─────────────────────────────── */
h1,h2,h3,h4{font-family:var(--display);font-weight:700;line-height:1.25;color:var(--ink)}
h1{font-size:clamp(2.2rem,5.5vw,4.4rem);font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(1.8rem,3.6vw,2.8rem);font-weight:700}
h3{font-size:clamp(1.25rem,2vw,1.55rem);font-weight:600}
h4{font-size:1.15rem;font-weight:600}
p{font-size:1.02rem;color:var(--ink-soft);line-height:1.85}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  font-family:var(--serif-en);
  font-style:italic;
  font-size:1rem;
  color:var(--gold-deep);
  letter-spacing:.05em;
  margin-bottom:1rem;
}
.eyebrow::before,.eyebrow::after{
  content:"";
  width:32px;height:1px;
  background:var(--gold);
}
.eyebrow.left::before{display:none}
.eyebrow.right::after{display:none}

.section-title{
  text-align:center;
  margin-bottom:3.5rem;
}
.section-title h2{position:relative;display:inline-block;padding-bottom:1rem}
.section-title h2::after{
  content:"";
  position:absolute;
  bottom:0;left:50%;
  transform:translateX(-50%);
  width:80px;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.section-title p{max-width:680px;margin:1rem auto 0;color:var(--ink-soft)}

/* ─── Top Bar ─────────────────────────────── */
.topbar{
  background:var(--ink);
  color:var(--gold-pale);
  padding:.5rem 0;
  font-size:.85rem;
  border-bottom:1px solid var(--gold-deep);
}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:.5rem}
.topbar a{color:var(--gold-bright)}
.topbar a:hover{color:var(--gold-pale)}
.topbar-meta{display:flex;gap:1.5rem;align-items:center;flex-wrap:wrap}

/* ─── Header / Nav ─────────────────────────────── */
.site-header{
  background:var(--paper);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:100;
  backdrop-filter:blur(10px);
  background:rgba(255,248,236,.95);
}
.nav{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1rem 0;
  gap:1rem;
}
.brand{display:flex;align-items:center;gap:.85rem;text-decoration:none}
.brand-mark{
  width:54px;height:54px;
  background:linear-gradient(135deg,var(--red-deep),var(--red-bright));
  display:grid;place-items:center;
  border:2px solid var(--gold);
  position:relative;
  box-shadow:var(--shadow-md);
  transform:rotate(45deg);
}
.brand-mark svg{transform:rotate(-45deg);width:28px;height:28px}
.brand-mark::before{
  content:"";
  position:absolute;
  inset:4px;
  border:1px solid var(--gold-bright);
  opacity:.5;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-family:var(--display);font-size:1.25rem;color:var(--red-deep);font-weight:800}
.brand-text small{font-size:.78rem;color:var(--gold-deep);letter-spacing:.08em;font-family:var(--serif-en);font-style:italic}

.menu{display:flex;gap:.5rem;list-style:none;align-items:center}
.menu a{
  padding:.5rem 1rem;
  font-weight:500;
  font-size:.95rem;
  color:var(--ink);
  position:relative;
}
.menu a::after{
  content:"";
  position:absolute;
  bottom:0;left:50%;
  transform:translateX(-50%);
  width:0;height:2px;
  background:var(--gold);
  transition:width .3s ease;
}
.menu a:hover{color:var(--red-bright)}
.menu a:hover::after,.menu a.active::after{width:60%}
.menu a.active{color:var(--red-bright)}

.nav-cta{display:flex;gap:.6rem;align-items:center}

.btn{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  padding:.85rem 1.6rem;
  font-weight:600;
  font-size:.95rem;
  border:2px solid transparent;
  position:relative;
  overflow:hidden;
  transition:all .35s ease;
  cursor:pointer;
  font-family:var(--body);
  letter-spacing:.02em;
}
.btn-primary{
  background:linear-gradient(135deg,var(--red-deep),var(--red-bright));
  color:var(--gold-pale);
  border-color:var(--gold);
  box-shadow:0 6px 20px -8px rgba(139,20,20,.6);
}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--red-bright),var(--red-deep));
  transform:translateY(-2px);
  box-shadow:0 10px 28px -8px rgba(139,20,20,.7);
  color:#fff;
}
.btn-line{
  background:#06C755;
  color:#fff;
  border-color:#06C755;
}
.btn-line:hover{background:#04a648;border-color:#04a648;transform:translateY(-2px)}
.btn-outline{
  background:transparent;
  color:var(--red-deep);
  border-color:var(--gold);
}
.btn-outline:hover{background:var(--red-deep);color:var(--gold-pale)}
.btn-gold{
  background:linear-gradient(135deg,var(--gold-bright),var(--gold));
  color:var(--ink);
  border-color:var(--gold-deep);
}
.btn-gold:hover{
  background:linear-gradient(135deg,var(--gold),var(--gold-deep));
  color:var(--paper);
  transform:translateY(-2px);
}

.menu-toggle{display:none;background:none;border:none;font-size:1.6rem;color:var(--red-deep);cursor:pointer}

/* ─── Hero ─────────────────────────────── */
.hero{
  position:relative;
  padding:5rem 0 6rem;
  background:
    linear-gradient(180deg, rgba(255,248,236,0) 0%, rgba(255,248,236,.4) 100%),
    radial-gradient(ellipse at top right, rgba(139,20,20,.06) 0%, transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(201,169,97,.08) 0%, transparent 60%);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(45deg, rgba(201,169,97,.03) 0 1px, transparent 1px 60px),
    repeating-linear-gradient(-45deg, rgba(201,169,97,.03) 0 1px, transparent 1px 60px);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:4rem;
  align-items:center;
}
.hero-content h1{
  margin:1rem 0 1.5rem;
  color:var(--red-deep);
}
.hero-content h1 .accent{
  color:var(--gold-deep);
  font-style:italic;
  font-family:var(--serif-en);
  font-weight:500;
}
.hero-lead{
  font-size:1.12rem;
  color:var(--ink-soft);
  margin-bottom:2rem;
  max-width:540px;
}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:2.5rem}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1rem;
  padding-top:2rem;
  border-top:1px solid var(--line);
}
.hero-stat strong{
  display:block;
  font-family:var(--display);
  font-size:1.85rem;
  font-weight:800;
  color:var(--red-deep);
  line-height:1;
}
.hero-stat span{font-size:.85rem;color:var(--ink-soft)}

.hero-visual{
  position:relative;
  aspect-ratio:1/1.05;
}
.hero-visual .frame{
  position:absolute;
  inset:0;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  border:6px solid var(--paper);
  outline:1px solid var(--gold);
  outline-offset:6px;
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-visual .frame::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 60%,rgba(26,10,10,.35) 100%);
}
.hero-badge{
  position:absolute;
  bottom:-30px;
  left:-30px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  color:var(--ink);
  padding:1.4rem 1.6rem;
  display:flex;
  align-items:center;
  gap:1rem;
  box-shadow:var(--shadow-md);
  border:2px solid var(--paper);
  z-index:2;
}
.hero-badge .num{
  font-family:var(--display);
  font-size:2.4rem;
  font-weight:800;
  line-height:1;
}
.hero-badge .lbl{
  font-size:.85rem;
  font-weight:600;
  line-height:1.3;
}

/* ─── Trust / Feature strip ─────────────────────────────── */
.trust-strip{
  background:var(--ink);
  color:var(--gold-pale);
  padding:2.5rem 0;
  position:relative;
}
.trust-strip::before,.trust-strip::after{
  content:"";
  position:absolute;
  left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.trust-strip::before{top:0}
.trust-strip::after{bottom:0}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;text-align:center}
.trust-item .icon{
  width:54px;height:54px;
  margin:0 auto .8rem;
  border:1px solid var(--gold);
  display:grid;place-items:center;
  color:var(--gold-bright);
  transform:rotate(45deg);
}
.trust-item .icon svg{transform:rotate(-45deg);width:26px;height:26px}
.trust-item h4{color:var(--gold-bright);margin-bottom:.3rem;font-family:var(--display)}
.trust-item p{color:rgba(244,228,188,.7);font-size:.92rem;margin:0}

/* ─── Section base ─────────────────────────────── */
section{padding:5rem 0;position:relative}
.section-light{background:var(--paper)}
.section-warm{background:var(--cream-warm)}
.section-dark{background:var(--ink);color:var(--gold-pale)}
.section-dark h2,.section-dark h3{color:var(--gold-bright)}
.section-dark p{color:rgba(244,228,188,.85)}
.section-dark .eyebrow{color:var(--gold-bright)}
.section-dark .section-title h2::after{background:linear-gradient(90deg,transparent,var(--gold-bright),transparent)}

/* ─── Services ─────────────────────────────── */
.services-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.8rem;
}
.service-card{
  background:var(--paper);
  border:1px solid var(--line);
  position:relative;
  transition:all .4s ease;
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.service-card::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:3px;
  background:linear-gradient(90deg,var(--red-deep),var(--gold),var(--red-deep));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .5s ease;
}
.service-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:var(--gold);
}
.service-card:hover::before{transform:scaleX(1)}
.service-img{
  aspect-ratio:1/1;
  overflow:hidden;
  position:relative;
}
.service-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .8s ease;
}
.service-card:hover .service-img img{transform:scale(1.06)}
.service-img::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(26,10,10,.55) 100%);
}
.service-num{
  position:absolute;
  top:1rem;left:1rem;
  background:var(--ink);
  color:var(--gold-bright);
  width:42px;height:42px;
  display:grid;place-items:center;
  font-family:var(--display);
  font-weight:700;
  border:1px solid var(--gold);
  z-index:1;
}
.service-body{padding:1.6rem;flex:1;display:flex;flex-direction:column}
.service-body h3{color:var(--red-deep);margin-bottom:.7rem}
.service-body p{font-size:.96rem;margin-bottom:1rem;flex:1}
.service-link{
  color:var(--gold-deep);
  font-weight:600;
  font-size:.92rem;
  display:inline-flex;
  align-items:center;
  gap:.4rem;
}
.service-link::after{content:"→";transition:transform .3s ease}
.service-link:hover{color:var(--red-bright)}
.service-link:hover::after{transform:translateX(4px)}

/* ─── Process steps ─────────────────────────────── */
.process-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:1rem;
  position:relative;
}
.process-grid::before{
  content:"";
  position:absolute;
  top:32px;left:8%;right:8%;
  height:1px;
  background:repeating-linear-gradient(90deg,var(--gold) 0 6px,transparent 6px 12px);
  z-index:0;
}
.process-step{text-align:center;position:relative;z-index:1;padding:0 .5rem}
.process-num{
  width:64px;height:64px;
  margin:0 auto 1rem;
  background:var(--paper);
  border:2px solid var(--gold);
  display:grid;place-items:center;
  font-family:var(--display);
  font-size:1.5rem;
  font-weight:800;
  color:var(--red-deep);
  transform:rotate(45deg);
  position:relative;
}
.process-num span{transform:rotate(-45deg)}
.process-num::before{
  content:"";
  position:absolute;
  inset:4px;
  border:1px solid var(--red-deep);
  opacity:.3;
}
.process-step:hover .process-num{
  background:linear-gradient(135deg,var(--red-deep),var(--red-bright));
  color:var(--gold-pale);
}
.process-step h4{color:var(--red-deep);font-size:1.05rem;margin-bottom:.4rem}
.process-step p{font-size:.88rem;color:var(--ink-soft)}

/* ─── Gallery ─────────────────────────────── */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1rem;
}
.gallery-item{
  aspect-ratio:1/1;
  overflow:hidden;
  position:relative;
  cursor:pointer;
  border:1px solid var(--line);
  background:var(--ink);
}
.gallery-item img{
  width:100%;height:100%;
  object-fit:cover;
  transition:all .6s ease;
}
.gallery-item::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(107,15,15,.85) 100%);
  opacity:0;
  transition:opacity .4s ease;
}
.gallery-item .meta{
  position:absolute;
  bottom:1rem;left:1rem;right:1rem;
  color:var(--gold-pale);
  z-index:2;
  opacity:0;
  transform:translateY(10px);
  transition:all .4s ease;
}
.gallery-item .meta strong{
  font-family:var(--display);
  font-size:1.1rem;
  display:block;
}
.gallery-item .meta span{font-size:.85rem;color:var(--gold-bright)}
.gallery-item:hover img{transform:scale(1.08)}
.gallery-item:hover::after{opacity:1}
.gallery-item:hover .meta{opacity:1;transform:translateY(0)}

.gallery-cta{text-align:center;margin-top:3rem}

/* ─── Calculator ─────────────────────────────── */
.calc-wrap{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:3rem;
  align-items:start;
}
.calc-info h2{color:var(--gold-bright);margin-bottom:1rem}
.calc-info p{margin-bottom:1.5rem}
.calc-features{list-style:none;display:flex;flex-direction:column;gap:.8rem}
.calc-features li{
  display:flex;
  align-items:flex-start;
  gap:.8rem;
  color:rgba(244,228,188,.9);
}
.calc-features li::before{
  content:"❖";
  color:var(--gold-bright);
  font-size:1.1rem;
  line-height:1.6;
}

.calc-form{
  background:var(--paper);
  padding:2.5rem;
  border:1px solid var(--gold);
  position:relative;
  color:var(--ink);
}
.calc-form::before{
  content:"";
  position:absolute;
  top:8px;left:8px;right:8px;bottom:8px;
  border:1px solid var(--gold);
  pointer-events:none;
  opacity:.4;
}
.calc-form h3{color:var(--red-deep);margin-bottom:1.5rem;text-align:center}
.form-row{margin-bottom:1.2rem}
.form-row label{
  display:block;
  font-weight:600;
  font-size:.92rem;
  margin-bottom:.4rem;
  color:var(--ink);
}
.form-row input,.form-row select,.form-row textarea{
  width:100%;
  padding:.85rem 1rem;
  border:1px solid var(--line);
  background:var(--cream);
  font-family:var(--body);
  font-size:.95rem;
  color:var(--ink);
  transition:all .3s ease;
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;
  border-color:var(--gold);
  background:#fff;
  box-shadow:0 0 0 3px rgba(201,169,97,.15);
}
.form-row textarea{min-height:90px;resize:vertical}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}

.calc-result{
  margin-top:1.5rem;
  padding:1.5rem;
  background:linear-gradient(135deg,var(--red-deep),var(--red-bright));
  color:var(--gold-pale);
  text-align:center;
  display:none;
}
.calc-result.show{display:block}
.calc-result .label{font-size:.85rem;color:var(--gold-bright);letter-spacing:.05em}
.calc-result .price{
  font-family:var(--display);
  font-size:2rem;
  font-weight:800;
  color:#fff;
  margin:.4rem 0;
}
.calc-result .note{font-size:.82rem;color:rgba(244,228,188,.8)}

/* ─── Articles ─────────────────────────────── */
.article-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.6rem;
}
.article-card{
  background:var(--paper);
  border:1px solid var(--line);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:all .4s ease;
}
.article-card:hover{transform:translateY(-4px);border-color:var(--gold);box-shadow:var(--shadow-md)}
.article-img{aspect-ratio:16/10;overflow:hidden}
.article-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.article-card:hover .article-img img{transform:scale(1.05)}
.article-body{padding:1.4rem;flex:1;display:flex;flex-direction:column}
.article-meta{font-size:.8rem;color:var(--gold-deep);letter-spacing:.05em;margin-bottom:.6rem;font-family:var(--serif-en);font-style:italic}
.article-card h3{font-size:1.2rem;color:var(--red-deep);margin-bottom:.7rem;line-height:1.4}
.article-card p{font-size:.92rem;flex:1;margin-bottom:1rem}
.article-card .read-more{
  color:var(--gold-deep);
  font-weight:600;
  font-size:.9rem;
}
.article-card .read-more:hover{color:var(--red-bright)}

/* ─── Knowledge / Why us ─────────────────────────────── */
.knowledge-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1.5rem;
}
.knowledge-card{
  background:var(--paper);
  padding:2rem;
  border-left:3px solid var(--gold);
  position:relative;
}
.knowledge-card::before{
  content:"";
  position:absolute;
  top:0;right:0;
  width:60px;height:60px;
  background:linear-gradient(135deg,transparent 50%, var(--gold) 50%);
  opacity:.15;
}
.knowledge-card h3{
  color:var(--red-deep);
  margin-bottom:.8rem;
  display:flex;
  align-items:center;
  gap:.7rem;
}
.knowledge-card h3 .ico{
  width:36px;height:36px;
  background:var(--red-deep);
  color:var(--gold-bright);
  display:grid;place-items:center;
  flex-shrink:0;
  font-family:var(--display);
}

/* ─── Reviews ─────────────────────────────── */
.review-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.5rem;
}
.review-card{
  background:var(--paper);
  padding:2rem;
  position:relative;
  border:1px solid var(--line);
}
.review-card::before{
  content:"\201C";
  position:absolute;
  top:-10px;left:1.5rem;
  font-family:var(--display);
  font-size:5rem;
  color:var(--gold);
  line-height:1;
  opacity:.4;
}
.review-stars{color:var(--gold-deep);margin-bottom:.8rem;letter-spacing:.1em}
.review-text{
  font-style:italic;
  font-family:var(--display);
  font-size:1rem;
  line-height:1.7;
  color:var(--ink-soft);
  margin-bottom:1.5rem;
}
.review-author{
  display:flex;
  align-items:center;
  gap:.9rem;
  padding-top:1rem;
  border-top:1px solid var(--line);
}
.review-avatar{
  width:48px;height:48px;
  border-radius:50%;
  overflow:hidden;
  border:2px solid var(--gold);
  flex-shrink:0;
}
.review-avatar img{width:100%;height:100%;object-fit:cover}
.review-author strong{display:block;color:var(--red-deep);font-family:var(--display);font-size:1rem}
.review-author span{font-size:.82rem;color:var(--ink-soft)}

/* ─── FAQ ─────────────────────────────── */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:.7rem}
.faq-item{
  background:var(--paper);
  border:1px solid var(--line);
  overflow:hidden;
  transition:all .3s ease;
}
.faq-item.open{border-color:var(--gold)}
.faq-q{
  width:100%;
  text-align:left;
  padding:1.2rem 1.5rem;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:1rem;
  font-family:var(--display);
  font-weight:600;
  font-size:1.05rem;
  color:var(--ink);
  background:var(--paper);
}
.faq-q:hover{color:var(--red-bright)}
.faq-q .toggle{
  flex-shrink:0;
  width:32px;height:32px;
  background:var(--red-deep);
  color:var(--gold-bright);
  display:grid;place-items:center;
  font-size:1.1rem;
  font-weight:700;
  transition:all .3s ease;
}
.faq-item.open .faq-q .toggle{background:var(--gold);color:var(--ink);transform:rotate(45deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease, padding .3s ease;
  padding:0 1.5rem;
}
.faq-item.open .faq-a{max-height:500px;padding:0 1.5rem 1.4rem}
.faq-a p{color:var(--ink-soft);font-size:.96rem}

/* ─── Provinces ─────────────────────────────── */
.provinces-intro{text-align:center;max-width:760px;margin:0 auto 3rem}
.provinces-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(180px,1fr));
  gap:.7rem;
}
.province{
  background:var(--paper);
  padding:.85rem 1rem;
  border:1px solid var(--line);
  font-size:.92rem;
  color:var(--ink);
  display:flex;
  align-items:center;
  gap:.6rem;
  transition:all .3s ease;
}
.province::before{
  content:"❖";
  color:var(--gold);
  font-size:.85rem;
}
.province:hover{
  background:var(--red-deep);
  color:var(--gold-pale);
  border-color:var(--gold);
  transform:translateX(3px);
}
.province:hover::before{color:var(--gold-bright)}

.region-block{margin-bottom:2.5rem}
.region-block h3{
  color:var(--red-deep);
  margin-bottom:1.2rem;
  padding-bottom:.6rem;
  border-bottom:2px solid var(--gold);
  display:inline-block;
}

/* ─── CTA Banner ─────────────────────────────── */
.cta-banner{
  background:
    linear-gradient(135deg, rgba(107,15,15,.92), rgba(139,20,20,.88)),
    url('https://rtdai.co.th/pig/sss5.jpg') center/cover;
  color:var(--gold-pale);
  padding:5rem 0;
  text-align:center;
  position:relative;
}
.cta-banner::before{
  content:"";
  position:absolute;
  inset:1.5rem;
  border:1px solid var(--gold);
  pointer-events:none;
}
.cta-banner h2{
  color:var(--gold-bright);
  font-size:clamp(1.8rem,4vw,2.6rem);
  margin-bottom:1rem;
}
.cta-banner p{color:rgba(244,228,188,.9);max-width:640px;margin:0 auto 2rem;font-size:1.1rem}
.cta-banner .cta-buttons{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}

/* ─── Sub-service (rest of page) ─────────────────────────────── */
.sub-service{
  background:var(--ink);
  color:var(--gold-pale);
  padding:3rem 0;
  border-top:3px solid var(--gold);
}
.sub-service .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:2rem;
  flex-wrap:wrap;
}
.sub-service h3{color:var(--gold-bright);font-size:1.4rem;margin-bottom:.4rem}
.sub-service p{color:rgba(244,228,188,.85);margin:0}
.sub-service-cta{display:flex;gap:.6rem;flex-wrap:wrap}

/* ─── Footer ─────────────────────────────── */
.site-footer{
  background:#0F0606;
  color:rgba(244,228,188,.8);
  padding:4rem 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:2.5rem;
  margin-bottom:3rem;
}
.footer-grid h4{
  color:var(--gold-bright);
  margin-bottom:1.2rem;
  font-size:1.05rem;
  position:relative;
  padding-bottom:.6rem;
}
.footer-grid h4::after{
  content:"";
  position:absolute;
  bottom:0;left:0;
  width:32px;height:2px;
  background:var(--gold);
}
.footer-brand p{font-size:.92rem;line-height:1.7;margin-top:1rem}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:.55rem}
.footer-links a{font-size:.92rem;color:rgba(244,228,188,.75)}
.footer-links a:hover{color:var(--gold-bright);padding-left:6px}
.footer-contact-item{
  display:flex;
  align-items:flex-start;
  gap:.7rem;
  margin-bottom:.85rem;
  font-size:.92rem;
}
.footer-contact-item .ico{
  color:var(--gold-bright);
  flex-shrink:0;
  margin-top:.15rem;
}
.footer-contact-item a{color:rgba(244,228,188,.85)}
.footer-contact-item a:hover{color:var(--gold-bright)}

.footer-bottom{
  border-top:1px solid rgba(201,169,97,.2);
  padding:1.5rem 0;
  text-align:center;
  font-size:.85rem;
  color:rgba(244,228,188,.6);
}

/* ─── Float CTA (mobile) ─────────────────────────────── */
.float-cta{
  position:fixed;
  bottom:1.2rem;
  left:1rem;right:1rem;
  display:none;
  gap:.6rem;
  z-index:99;
}
.float-cta .btn{flex:1;justify-content:center;padding:1rem;box-shadow:var(--shadow-lg)}

/* ─── Page header (sub pages) ─────────────────────────────── */
.page-hero{
  background:
    linear-gradient(135deg,rgba(107,15,15,.92),rgba(26,10,10,.95)),
    url('https://rtdai.co.th/pig/sss10.jpg') center/cover;
  color:var(--gold-pale);
  padding:4.5rem 0 4rem;
  text-align:center;
  position:relative;
}
.page-hero::after{
  content:"";
  position:absolute;
  bottom:0;left:0;right:0;
  height:3px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.page-hero .eyebrow{color:var(--gold-bright);justify-content:center;display:flex}
.page-hero h1{color:var(--gold-bright)}
.page-hero p{color:rgba(244,228,188,.85);max-width:680px;margin:1rem auto 0}
.breadcrumb{
  display:flex;
  justify-content:center;
  gap:.5rem;
  font-size:.88rem;
  color:rgba(244,228,188,.7);
  margin-top:1.2rem;
}
.breadcrumb a{color:var(--gold-bright)}
.breadcrumb a:hover{color:#fff}

/* ─── Contact page specific ─────────────────────────────── */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1.2fr;
  gap:3rem;
  align-items:start;
}
.contact-card{
  background:var(--paper);
  padding:2.5rem;
  border:1px solid var(--line);
  margin-bottom:1.5rem;
}
.contact-card h3{color:var(--red-deep);margin-bottom:1.2rem}
.contact-method{
  display:flex;
  align-items:center;
  gap:1rem;
  padding:1rem 0;
  border-bottom:1px solid var(--line);
}
.contact-method:last-child{border-bottom:none}
.contact-method .ico-wrap{
  width:48px;height:48px;
  background:linear-gradient(135deg,var(--red-deep),var(--red-bright));
  color:var(--gold-bright);
  display:grid;place-items:center;
  flex-shrink:0;
}
.contact-method strong{display:block;font-family:var(--display);font-size:1.05rem;color:var(--red-deep)}
.contact-method span{font-size:.88rem;color:var(--ink-soft)}

/* ─── Animations ─────────────────────────────── */
@keyframes fadeUp{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}
.fade-up{animation:fadeUp .8s ease both}
.fade-up-delay-1{animation-delay:.15s}
.fade-up-delay-2{animation-delay:.3s}
.fade-up-delay-3{animation-delay:.45s}

@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-6px)}
}

/* ─── Responsive ─────────────────────────────── */
@media (max-width:1024px){
  .services-grid,.article-grid,.review-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
  .process-grid{grid-template-columns:repeat(5,1fr);gap:.6rem}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:2rem}
  .hero-grid{grid-template-columns:1fr;gap:3rem}
  .hero-visual{max-width:480px;margin:0 auto;width:100%}
  .calc-wrap{grid-template-columns:1fr;gap:2rem}
  .contact-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:768px){
  section{padding:3.5rem 0}
  .hero{padding:3rem 0 4rem}
  .menu{
    display:none;
    position:absolute;
    top:100%;left:0;right:0;
    flex-direction:column;
    background:var(--paper);
    border-bottom:1px solid var(--line);
    padding:1rem 1.5rem;
    box-shadow:var(--shadow-md);
    align-items:stretch;
  }
  .menu.open{display:flex}
  .menu a{padding:.8rem 0;border-bottom:1px solid var(--line)}
  .menu-toggle{display:block}
  .nav-cta .btn-outline{display:none}
  .topbar{font-size:.78rem}
  .topbar-meta{gap:.8rem}
  .services-grid,.article-grid,.review-grid,.knowledge-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr);gap:1.5rem}
  .process-grid::before{display:none}
  .form-grid-2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .float-cta{display:flex}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{justify-content:center}
  .hero-stats{grid-template-columns:1fr 1fr 1fr;gap:.5rem}
  .hero-stat strong{font-size:1.4rem}
  .hero-badge{left:auto;right:0;bottom:-20px;padding:1rem}
  .hero-badge .num{font-size:1.8rem}
  .nav{padding:.8rem 0}
  .brand-mark{width:44px;height:44px}
  .brand-text strong{font-size:1.05rem}
  .trust-grid{grid-template-columns:1fr 1fr;gap:1.2rem}
  .sub-service .container{flex-direction:column;text-align:center}
  body{padding-bottom:5rem}
  .container{padding:0 18px}
}