:root{
  --ink:#13202f;
  --navy:#0d2440;
  --navy2:#14365a;
  --blue:#1554a8;
  --blue-soft:#eaf1fb;
  --paper:#f6f4ef;
  --line:#e8e4db;
  --mute:#5d6b7d;
  --c:#00b3e3; --m:#e6007e; --y:#ffd400; --k:#1d1d1f;
  --font-h:'Prompt',sans-serif;
  --font-b:'Sarabun',sans-serif;
  --radius:14px;
  --shadow:0 4px 18px rgba(16,32,56,.08);
  --shadow-lg:0 18px 50px rgba(16,32,56,.16);
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-b);color:var(--ink);background:#fff;font-size:17px;line-height:1.8;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5{font-family:var(--font-h);line-height:1.35;font-weight:600}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.cmyk{height:4px;background:linear-gradient(90deg,var(--c) 0 25%,var(--m) 25% 50%,var(--y) 50% 75%,var(--k) 75% 100%)}
.cmyk-dots{display:inline-flex;gap:5px;align-items:center}
.cmyk-dots i{width:8px;height:8px;border-radius:50%}
.cmyk-dots i:nth-child(1){background:var(--c)}.cmyk-dots i:nth-child(2){background:var(--m)}
.cmyk-dots i:nth-child(3){background:var(--y)}.cmyk-dots i:nth-child(4){background:var(--k)}

/* ── Header ─────────────────────────────── */
header.site{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;flex-direction:column;line-height:1.1}
.brand b{font-family:var(--font-h);font-size:24px;font-weight:700;letter-spacing:.04em;color:var(--navy);display:flex;align-items:center;gap:9px}
.brand span{font-size:11px;letter-spacing:.32em;color:var(--mute);text-transform:uppercase;margin-top:3px}
.menu{display:flex;gap:6px;list-style:none}
.menu a{font-family:var(--font-h);font-size:15px;font-weight:500;padding:9px 14px;border-radius:8px;color:#33445c;transition:.18s}
.menu a:hover{background:var(--blue-soft);color:var(--blue)}
.menu a.on{background:var(--navy);color:#fff}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:9px;width:42px;height:42px;cursor:pointer;font-size:19px;color:var(--navy)}
@media(max-width:1023px){
  .menu{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:12px 16px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);gap:2px}
  .menu.open{display:flex}
  .menu a{display:block;padding:13px 14px;font-size:16px}
  .burger{display:block}
}

/* ── Buttons ────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-h);font-weight:500;font-size:15.5px;padding:13px 28px;border-radius:10px;transition:.2s;cursor:pointer;border:none}
.btn-solid{background:var(--blue);color:#fff;box-shadow:0 6px 18px rgba(21,84,168,.3)}
.btn-solid:hover{background:var(--navy);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-line{border:1.5px solid var(--blue);color:var(--blue)}
.btn-line:hover{background:var(--blue);color:#fff}

/* ── Hero ───────────────────────────────── */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:url('https://tanapat.co.th/wp-content/uploads/2022/07/bg8.jpeg') center/cover no-repeat}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,22,42,.93) 0%,rgba(8,22,42,.78) 45%,rgba(8,22,42,.35) 100%)}
.hero .wrap{position:relative;z-index:2;padding-top:70px;padding-bottom:90px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-h);font-size:13px;letter-spacing:.22em;text-transform:uppercase;font-weight:500}
.hero .kicker{color:#9fc3f5}
.hero h1{font-size:clamp(34px,5.2vw,62px);font-weight:700;margin:18px 0 10px}
.hero h1 em{font-style:normal;color:#ffd400}
.hero p.sub{font-size:clamp(16px,2vw,20px);color:#d6e2f2;max-width:560px;font-weight:300}
.hero .cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}

/* ── Stats ──────────────────────────────── */
.stats{background:var(--navy);color:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(2,1fr);gap:2px}
.stat{padding:34px 10px;text-align:center;position:relative}
.stat b{font-family:var(--font-h);font-size:clamp(30px,3.4vw,44px);font-weight:700;display:block}
.stat b i{font-style:normal}
.stat span{color:#9db1c9;font-size:14.5px}
.stat::after{content:"";position:absolute;left:14%;right:14%;bottom:24px;height:3px;border-radius:2px}
.stat:nth-child(1)::after{background:var(--c)}.stat:nth-child(2)::after{background:var(--m)}
.stat:nth-child(3)::after{background:var(--y)}.stat:nth-child(4)::after{background:#fff}
@media(min-width:768px){.stats .wrap{grid-template-columns:repeat(4,1fr)}}

/* ── Sections ───────────────────────────── */
section.sec{padding:84px 0}
section.sec.tint{background:var(--paper)}
.sec-head{max-width:680px;margin-bottom:46px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head .kicker{color:var(--m)}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);color:var(--navy);margin-top:12px}
.sec-head p{color:var(--mute);margin-top:10px}
.sec-foot{text-align:center;margin-top:44px}

/* ── About home ─────────────────────────── */
.about-grid{display:grid;gap:40px;align-items:center}
@media(min-width:1024px){.about-grid{grid-template-columns:1.05fr 1fr}}
.about-pic{position:relative}
.about-pic img{border-radius:var(--radius);box-shadow:var(--shadow-lg);aspect-ratio:4/3;object-fit:cover;width:100%}
.about-badge{position:absolute;left:-16px;bottom:-22px;background:var(--navy);color:#fff;padding:18px 26px;border-radius:12px;box-shadow:var(--shadow-lg)}
.about-badge b{font-family:var(--font-h);font-size:30px;display:block;color:var(--y)}
.about-badge span{font-size:13px;color:#bcd0e6}
@media(max-width:600px){.about-badge{left:10px;bottom:-18px;padding:13px 18px}.about-badge b{font-size:23px}}
.usp{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:30px}
@media(max-width:560px){.usp{grid-template-columns:1fr}}
.usp .u{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;display:flex;gap:13px;align-items:flex-start;box-shadow:var(--shadow)}
.usp .u i{flex:0 0 10px;width:10px;height:10px;border-radius:50%;margin-top:9px}
.usp .u:nth-child(1) i{background:var(--c)}.usp .u:nth-child(2) i{background:var(--m)}
.usp .u:nth-child(3) i{background:var(--y)}.usp .u:nth-child(4) i{background:var(--k)}
.usp b{font-family:var(--font-h);font-size:15px;color:var(--navy);display:block}
.usp small{color:var(--mute);font-size:13.5px;line-height:1.55;display:block}

/* ── Product grid ───────────────────────── */
.grid{display:grid;gap:22px}
.grid.g4{grid-template-columns:repeat(4,1fr)}
.grid.g3{grid-template-columns:repeat(3,1fr)}
@media(max-width:1023px){.grid.g4{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){.grid.g4,.grid.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.grid.g4,.grid.g3{grid-template-columns:1fr}}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;cursor:zoom-in}
.pcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.pcard .ph{aspect-ratio:4/3;overflow:hidden;background:var(--paper)}
.pcard .ph img{width:100%;height:100%;object-fit:cover;transition:.45s}
.pcard:hover .ph img{transform:scale(1.06)}
.pcard .pb{padding:14px 18px;font-family:var(--font-h);font-weight:500;font-size:15px;color:var(--navy)}

/* ── Portfolio (examples) ───────────────── */
.xcat{margin-bottom:60px}
.xcat>h3{font-size:24px;color:var(--navy);display:flex;align-items:center;gap:14px;margin-bottom:26px}
.xcat>h3::after{content:"";flex:1;height:1px;background:var(--line)}
.xcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column}
.xcard .ph{cursor:zoom-in;overflow:hidden;background:var(--paper)}
.xcard .ph img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:.4s}
.xcard:hover .ph img{transform:scale(1.05)}
.xcard .xb{padding:20px 22px}
.xcard h4{font-size:17px;color:var(--navy);margin-bottom:10px}
.xcard ul{list-style:none}
.xcard li{font-size:14.5px;color:var(--mute);padding:3px 0 3px 20px;position:relative}
.xcard li::before{content:"";position:absolute;left:2px;top:12px;width:7px;height:7px;border-radius:50%;background:var(--c)}
.xcard li:nth-child(4n+2)::before{background:var(--m)}
.xcard li:nth-child(4n+3)::before{background:var(--y)}
.xcard li:nth-child(4n+4)::before{background:var(--k)}

/* ── Articles ───────────────────────────── */
.acard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.acard:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.acard .ph{aspect-ratio:16/10;overflow:hidden;position:relative;background:var(--paper)}
.acard .ph img{width:100%;height:100%;object-fit:cover;transition:.45s}
.acard:hover .ph img{transform:scale(1.06)}
.badge{position:absolute;top:12px;left:12px;background:rgba(13,36,64,.88);color:#fff;font-size:12px;font-family:var(--font-h);padding:5px 12px;border-radius:999px;backdrop-filter:blur(3px)}
.acard .ab{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.acard .meta{font-size:12.5px;color:var(--mute);display:flex;gap:14px;margin-bottom:8px}
.acard h4{font-size:17.5px;color:var(--navy);margin-bottom:8px}
.acard p{font-size:14.5px;color:var(--mute);line-height:1.7;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.acard .more{margin-top:14px;font-family:var(--font-h);font-size:14px;color:var(--blue);font-weight:500}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.chip{font-family:var(--font-h);font-size:14px;padding:8px 18px;border-radius:999px;border:1.5px solid var(--line);background:#fff;cursor:pointer;transition:.18s;color:#43536a}
.chip:hover{border-color:var(--blue)}
.chip.on{background:var(--navy);border-color:var(--navy);color:#fff}
.searchbox{width:100%;max-width:430px;padding:13px 20px;border:1.5px solid var(--line);border-radius:12px;font-family:var(--font-b);font-size:16px;margin-bottom:22px;outline:none;transition:.2s}
.searchbox:focus{border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-soft)}
.count-note{color:var(--mute);font-size:14px;margin-bottom:24px}

/* ── Article reader ─────────────────────── */
.art-hero{background:linear-gradient(180deg,var(--navy) 0%,#16365c 100%);color:#fff;padding:64px 0 56px}
.art-hero .crumb{font-size:13.5px;color:#9db8d9;margin-bottom:18px;display:flex;gap:8px;flex-wrap:wrap}
.art-hero .crumb a{color:#cfe0f5;text-decoration:underline;text-underline-offset:3px}
.art-hero h1{font-size:clamp(26px,3.6vw,40px);max-width:840px}
.art-hero .meta{margin-top:16px;display:flex;gap:20px;color:#9db8d9;font-size:14px;flex-wrap:wrap}
.art-body{max-width:780px;margin:0 auto;padding:54px 20px 30px}
.art-body h2,.art-body h3{color:var(--navy);margin:38px 0 14px;font-size:24px;position:relative;padding-left:18px}
.art-body h2::before,.art-body h3::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:5px;border-radius:3px;background:linear-gradient(180deg,var(--c),var(--m))}
.art-body h4,.art-body h5{color:var(--navy);margin:30px 0 10px;font-size:19px}
.art-body p{margin:0 0 18px;color:#2c3a4d}
.art-body img{border-radius:var(--radius);box-shadow:var(--shadow);margin:28px auto}
.rel-list{list-style:none;margin:6px 0 24px;column-gap:40px}
@media(min-width:860px){.rel-list{columns:2}}
.rel-list li{padding:7px 0 7px 22px;position:relative;break-inside:avoid;font-size:15.5px;line-height:1.6}
.rel-list li::before{content:"";position:absolute;left:2px;top:16px;width:8px;height:8px;border-radius:50%;background:var(--c)}
.rel-list li:nth-child(4n+2)::before{background:var(--m)}
.rel-list li:nth-child(4n+3)::before{background:var(--y)}
.rel-list li:nth-child(4n+4)::before{background:var(--k)}
.rel-list a{color:var(--blue);transition:.15s}
.rel-list a:hover{color:var(--navy);text-decoration:underline;text-underline-offset:3px}
.art-nav{max-width:780px;margin:0 auto;padding:10px 20px 60px;display:grid;gap:14px}
@media(min-width:700px){.art-nav{grid-template-columns:1fr 1fr}}
.art-nav a{border:1px solid var(--line);border-radius:12px;padding:16px 20px;transition:.2s;background:#fff}
.art-nav a:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.art-nav small{color:var(--mute);font-size:12.5px;font-family:var(--font-h)}
.art-nav b{display:block;font-family:var(--font-h);font-weight:500;font-size:15px;color:var(--navy);margin-top:4px}
.art-nav a.next{text-align:right}

/* ── Partners ───────────────────────────── */
.marq{overflow:hidden;position:relative;padding:6px 0}
.marq .track{display:flex;gap:54px;align-items:center;animation:scroll 36s linear infinite;width:max-content}
.marq:hover .track{animation-play-state:paused}
.marq img{height:62px;width:auto;object-fit:contain;filter:grayscale(1);opacity:.65;transition:.25s}
.marq img:hover{filter:none;opacity:1}
@keyframes scroll{to{transform:translateX(-50%)}}

/* ── FAQ ────────────────────────────────── */
.faq{max-width:820px;margin:0 auto}
.qa{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.qa button{width:100%;text-align:left;background:none;border:none;padding:18px 22px;font-family:var(--font-h);font-size:16.5px;font-weight:500;color:var(--navy);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:14px}
.qa button::after{content:"+";font-size:24px;color:var(--m);transition:.25s;flex:0 0 auto}
.qa.open button::after{transform:rotate(45deg)}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .3s ease}
.qa .ans div{padding:0 22px 20px;color:var(--mute);white-space:pre-line;font-size:15.5px}

/* ── CTA band ───────────────────────────── */
.cta-band{background:linear-gradient(115deg,var(--navy) 0%,#17406f 70%,#1554a8 100%);color:#fff;border-radius:20px;padding:54px 8%;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;right:-60px;top:-60px;width:230px;height:230px;border-radius:50%;background:radial-gradient(circle,rgba(255,212,0,.25),transparent 70%)}
.cta-band h3{font-size:clamp(22px,2.8vw,30px)}
.cta-band p{color:#bdd2ea;margin-top:8px}

/* ── Contact ────────────────────────────── */
.con-grid{display:grid;gap:22px}
@media(min-width:900px){.con-grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:560px) and (max-width:899px){.con-grid{grid-template-columns:repeat(2,1fr)}}
.ccard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.ccard .ic{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:14px;background:var(--blue-soft)}
.ccard h4{font-size:17px;color:var(--navy);margin-bottom:8px}
.ccard p,.ccard a{font-size:15px;color:var(--mute);line-height:1.85}
.ccard a:hover{color:var(--blue)}
.map-wrap{margin-top:40px;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.map-wrap iframe{width:100%;height:420px;border:0;display:block}
.qr{display:flex;align-items:center;gap:16px}
.qr img{width:110px;border-radius:10px;border:1px solid var(--line)}

/* ── Footer ─────────────────────────────── */
footer.site{background:var(--navy);color:#b9c9dd;margin-top:0}
footer .cols{display:grid;gap:38px;padding:60px 0 40px}
@media(min-width:860px){footer .cols{grid-template-columns:1.3fr 1fr 1.2fr}}
footer h5{color:#fff;font-size:16px;margin-bottom:16px}
footer .brand b{color:#fff}
footer .brand span{color:#8aa2c0}
footer p{font-size:14.5px;line-height:1.9}
footer ul{list-style:none}
footer li{margin-bottom:9px;font-size:14.5px}
footer a:hover{color:#fff}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.09);display:flex;align-items:center;justify-content:center;font-size:16px;transition:.2s}
.socials a:hover{background:var(--blue)}
.copy{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:13px;color:#7e94b1;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* ── Lightbox ───────────────────────────── */
.lb{position:fixed;inset:0;background:rgba(9,16,28,.92);z-index:200;display:none;align-items:center;justify-content:center;padding:30px;cursor:zoom-out}
.lb.show{display:flex}
.lb img{max-width:92vw;max-height:82vh;border-radius:10px;box-shadow:0 30px 90px rgba(0,0,0,.5)}
.lb .cap{position:absolute;bottom:26px;left:0;right:0;text-align:center;color:#dce6f2;font-family:var(--font-h);font-size:15px}
.lb .x{position:absolute;top:18px;right:24px;color:#fff;font-size:30px;cursor:pointer;background:none;border:none}

/* ── Page hero (inner pages) ────────────── */
.page-hero{background:linear-gradient(120deg,var(--navy),#17406f);color:#fff;padding:58px 0 50px}
.page-hero h1{font-size:clamp(28px,3.6vw,42px)}
.page-hero p{color:#b9cce4;margin-top:10px;max-width:640px}
.page-hero .kicker{color:#9fc3f5}

.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.skel{text-align:center;color:var(--mute);padding:80px 0}