:root{
  --navy:#123653;--navy2:#0b2a43;--green:#0f755f;--green2:#0b5d4b;
  --gold:#d8ad4a;--ink:#17324d;--muted:#697b8d;--soft:#f4f8fb;--line:#dfe8ef;
  --white:#fff;--shadow:0 14px 38px rgba(18,54,83,.10);--radius:18px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Noto Sans Thai","Segoe UI",Tahoma,sans-serif;color:var(--ink);background:#fff;line-height:1.65}
a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 40px));margin:auto}
.topbar{background:var(--navy2);color:#dce8ef;font-size:13px}.topbar .container{display:flex;justify-content:space-between;gap:18px;padding:8px 0;flex-wrap:wrap}
header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand-mark{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--green));display:grid;place-items:center;color:#fff;font-weight:900}
.brand span small{display:block;font-size:11px;letter-spacing:.16em;color:var(--muted);font-weight:700}.menu{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:700}
.menu a{padding:28px 0;border-bottom:3px solid transparent}.menu a:hover,.menu a.active{color:var(--green);border-color:var(--green)}
.menu-toggle{display:none;border:0;background:var(--soft);width:44px;height:44px;border-radius:12px;font-size:22px}
.hero{position:relative;min-height:620px;display:flex;align-items:center;background:url("../assets/images/hero-bg.svg") center/cover no-repeat;color:#fff;overflow:hidden}
.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,29,47,.15),rgba(5,29,47,.02))}
.hero .container{position:relative;z-index:2}.hero-copy{max-width:760px;padding:90px 0}
.eyebrow{display:inline-flex;align-items:center;gap:9px;text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:800;color:var(--gold)}
.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.08;margin:14px 0 20px}.hero p{font-size:20px;max-width:670px;color:#e7f0f4}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:12px;font-weight:800;border:1px solid transparent}
.btn-primary{background:var(--gold);color:#12273b}.btn-outline{border-color:rgba(255,255,255,.45);color:#fff;background:rgba(255,255,255,.06)}
section{padding:82px 0}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}.section-head h2,.page-hero h1{margin:0;font-size:clamp(30px,4vw,46px);line-height:1.2}.section-head p{max-width:650px;margin:0;color:var(--muted)}
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.about-visual{min-height:440px;border-radius:28px;background:linear-gradient(145deg,#dce8f0,#f7fafc);position:relative;overflow:hidden;box-shadow:var(--shadow)}
.about-visual:before{content:"PVT&T";position:absolute;font-size:120px;font-weight:900;color:rgba(18,54,83,.07);right:20px;bottom:10px}
.about-visual .badge{position:absolute;left:28px;bottom:28px;background:#fff;padding:20px 24px;border-radius:16px;box-shadow:var(--shadow);max-width:280px}
.kicker{color:var(--green);font-size:13px;font-weight:900;letter-spacing:.12em}.about-copy h2{font-size:42px;line-height:1.25;margin:10px 0 18px}.about-copy p{color:var(--muted)}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}.value{border:1px solid var(--line);border-radius:14px;padding:17px;font-weight:800}.value small{display:block;color:var(--muted);font-weight:500}
.soft{background:var(--soft)}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;box-shadow:0 5px 18px rgba(15,45,69,.04)}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.product-card img{aspect-ratio:4/3;object-fit:cover;background:#eef4f8}.product-body{padding:20px}.product-body h3{margin:0 0 6px;font-size:20px}.product-body .en{font-size:12px;color:var(--green);font-weight:800;letter-spacing:.08em}.product-body p{color:var(--muted);font-size:14px}.more{color:var(--green);font-weight:800;font-size:14px}
.cta{background:linear-gradient(135deg,var(--navy),var(--green));color:#fff;border-radius:28px;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h3{font-size:32px;margin:0 0 10px}.cta p{margin:0;color:#dfeaec}
.footer{background:#081f33;color:#c9d6df;padding:56px 0 26px}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr;gap:50px}.footer h4{color:#fff;margin-top:0}.footer a{display:block;margin:8px 0;color:#c9d6df}.footer .copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:20px;font-size:13px;color:#8fa3b2}
.page-hero{padding:74px 0;background:linear-gradient(135deg,#eef5f7,#f7fafc)}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:10px}.content-grid{display:grid;grid-template-columns:1fr 360px;gap:38px}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px}.info-card{background:var(--navy);color:#fff;border-radius:22px;padding:34px}.info-card p{color:#d6e0e7}
form{display:grid;gap:14px}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:12px;padding:14px 15px;font:inherit;background:#fff}textarea{min-height:140px;resize:vertical}.btn-dark{background:var(--navy);color:#fff;cursor:pointer}
.notice{padding:14px 18px;background:#fff7df;border:1px solid #f0d788;border-radius:12px;color:#6c5520;font-size:14px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.news-card{border:1px solid var(--line);border-radius:18px;overflow:hidden}.news-image{height:210px;background:linear-gradient(135deg,#dce8ef,#f2f6f9)}.news-body{padding:20px}.tag{font-size:12px;font-weight:800;color:var(--green)}
@media(max-width:920px){.menu-toggle{display:block}.menu{display:none;position:absolute;top:78px;left:0;right:0;background:#fff;border-top:1px solid var(--line);padding:12px 20px 22px;flex-direction:column;align-items:stretch;gap:0}.menu.open{display:flex}.menu a{padding:13px 0;border-bottom:1px solid var(--line)}.about-grid,.contact-grid,.content-grid{grid-template-columns:1fr}.product-grid,.news-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.hero{min-height:560px}}
@media(max-width:620px){.container{width:min(100% - 28px,1180px)}.topbar .container{display:block}.topbar .container div:last-child{display:none}.nav{height:68px}.menu{top:68px}.brand span{font-size:14px}.hero-copy{padding:70px 0}.hero p{font-size:17px}section{padding:58px 0}.about-copy h2{font-size:32px}.about-visual{min-height:310px}.values{grid-template-columns:1fr}.product-grid,.news-grid,.footer-grid{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column}.cta{padding:30px;align-items:flex-start;flex-direction:column}}

.product-gallery{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:12px}
.gallery-thumb{padding:0;border:2px solid transparent;border-radius:10px;overflow:hidden;background:#fff;cursor:pointer}
.gallery-thumb.active{border-color:var(--green)}
.gallery-thumb img{width:100%;aspect-ratio:1/1;object-fit:cover}
@media(max-width:620px){.product-gallery{grid-template-columns:repeat(4,1fr)}}


/* =========================
   HOME BANNER SLIDER
   ========================= */
.home-slider{
  position:relative;
  width:100%;
  overflow:hidden;
  background:#eef4f1;
}
.slider-track{
  position:relative;
  width:100%;
  aspect-ratio: 1920 / 796;
  min-height:260px;
}
.slide{
  position:absolute;
  inset:0;
  opacity:0;
  visibility:hidden;
  transition:opacity .65s ease, visibility .65s ease;
  pointer-events:none;
}
.slide.active{
  opacity:1;
  visibility:visible;
  pointer-events:auto;
}
.slide img{
  width:100%;
  height:100%;
  display:block;
  object-fit:cover;
  object-position:center;
}
.slider-arrow{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  z-index:6;
  width:48px;
  height:48px;
  border:0;
  border-radius:50%;
  background:rgba(6,38,29,.72);
  color:#fff;
  font-size:36px;
  line-height:1;
  cursor:pointer;
  display:grid;
  place-items:center;
  transition:.2s ease;
  box-shadow:0 8px 24px rgba(0,0,0,.18);
}
.slider-arrow:hover{
  background:rgba(10,104,73,.95);
  transform:translateY(-50%) scale(1.06);
}
.slider-prev{left:22px}
.slider-next{right:22px}

.slider-dots{
  position:absolute;
  left:50%;
  bottom:18px;
  transform:translateX(-50%);
  z-index:7;
  display:flex;
  gap:9px;
  padding:7px 10px;
  border-radius:999px;
  background:rgba(0,0,0,.18);
  backdrop-filter:blur(4px);
}
.slider-dot{
  width:10px;
  height:10px;
  border:0;
  border-radius:50%;
  background:rgba(255,255,255,.55);
  padding:0;
  cursor:pointer;
  transition:.2s ease;
}
.slider-dot.active{
  width:28px;
  border-radius:999px;
  background:#fff;
}

@media(max-width:920px){
  .slider-track{
    aspect-ratio: 16 / 7;
    min-height:240px;
  }
  .slider-arrow{
    width:42px;
    height:42px;
    font-size:30px;
  }
  .slider-prev{left:12px}
  .slider-next{right:12px}
}
@media(max-width:620px){
  .slider-track{
    aspect-ratio:auto;
    height:265px;
    min-height:265px;
  }
  .slide img{
    object-fit:cover;
    object-position:center;
  }
  .slider-arrow{
    width:36px;
    height:36px;
    font-size:26px;
  }
  .slider-dots{
    bottom:10px;
  }
}

.slider-loading{
  width:100%;
  height:100%;
  min-height:260px;
  display:grid;
  place-items:center;
  color:var(--muted);
  background:#eef4f1;
  font-weight:700;
}