/* ============================================================
   EMBIZ QR Box — Design System
   ============================================================ */
:root{
  --green:#3EB44B;
  --green-600:#2F9A3C;
  --green-700:#25792F;
  --green-50:#EDF8EE;
  --green-100:#D6EFDA;
  --ink:#2E3033;
  --ink-700:#4A4E54;
  --ink-500:#6B7178;
  --ink-300:#9AA0A6;
  --line:#E4E7EA;
  --bg:#FFFFFF;
  --bg-soft:#F7F9F8;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(24,28,33,.06), 0 1px 3px rgba(24,28,33,.05);
  --shadow:0 6px 20px rgba(24,28,33,.07);
  --shadow-lg:0 18px 48px rgba(24,28,33,.10);
  --wrap:1140px;
  --font:'IBM Plex Sans Thai','Noto Sans Thai',-apple-system,BlinkMacSystemFont,'Segoe UI',Tahoma,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section--soft{background:var(--bg-soft)}
.section--tight{padding:64px 0}

/* ---------- Type helpers ---------- */
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--green-600);margin-bottom:14px;
}
.h1{font-size:clamp(32px,4.6vw,52px);letter-spacing:-.02em}
.h2{font-size:clamp(26px,3.2vw,38px);letter-spacing:-.02em}
.h3{font-size:20px}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--ink-700)}
.muted{color:var(--ink-500)}
.small{font-size:14px}
.center{text-align:center}
.section-head{max-width:720px;margin:0 auto 48px;text-align:center}
.section-head p{margin-top:14px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;
  font-family:inherit;
}
.btn--primary{background:var(--green);color:#fff;box-shadow:0 6px 16px rgba(62,180,75,.28)}
.btn--primary:hover{background:var(--green-600);transform:translateY(-1px)}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink-300);background:var(--bg-soft)}
.btn--light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.35)}
.btn--light:hover{background:rgba(255,255,255,.24)}
.btn--lg{padding:16px 34px;font-size:16px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.btn-row--center{justify-content:center}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:17px}
.brand img{height:38px;width:auto}
.brand small{display:block;font-size:10.5px;letter-spacing:.18em;color:var(--green-600);font-weight:600;line-height:1.4}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:15px;font-weight:500;color:var(--ink-700);
  transition:.16s ease;
}
.nav-links a:hover{background:var(--bg-soft);color:var(--ink)}
.nav-links a.is-active{color:var(--green-700);background:var(--green-50);font-weight:600}
.nav-cta{margin-left:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:12px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle i::before,.nav-toggle i::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle i::before{top:-6px}
.nav-toggle i::after{top:6px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(168deg,#F4FBF5 0%,#FFFFFF 58%);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;right:-160px;top:-160px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(62,180,75,.14),transparent 65%);
}
.hero .wrap{position:relative;z-index:1}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
  padding:76px 0 84px;
}
.hero h1{margin-bottom:20px}
.hero .lead{margin-bottom:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:7px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13.5px;font-weight:500;color:var(--ink-700);
  box-shadow:var(--shadow-sm);
}
.chip b{color:var(--green-700);font-weight:700}
.hero-visual{position:relative;display:flex;justify-content:center}
.hero-visual img{
  max-width:330px;filter:drop-shadow(0 30px 50px rgba(24,28,33,.16));
}
.hero-stat{
  position:absolute;bottom:14px;left:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:14px 18px;box-shadow:var(--shadow);
}
.hero-stat b{display:block;font-size:22px;color:var(--green-700);line-height:1.2}
.hero-stat span{font-size:13px;color:var(--ink-500)}

/* ---------- Stat band ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden}
.stat{background:#fff;padding:30px 24px;text-align:center}
.stat b{display:block;font-size:clamp(26px,3vw,34px);color:var(--ink);line-height:1.2}
.stat span{font-size:14px;color:var(--ink-500)}

/* ---------- Cards ---------- */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;transition:.2s ease;
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:var(--green-100)}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-500);font-size:15px}
.icon{
  width:46px;height:46px;border-radius:13px;background:var(--green-50);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
  color:var(--green-700);
}
.icon svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:1.9;
  stroke-linecap:round;stroke-linejoin:round}

/* ---------- Steps ---------- */
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;padding-top:16px}
.step::before{
  counter-increment:s;content:counter(s,decimal-leading-zero);
  font-size:34px;font-weight:700;color:var(--green-100);line-height:1;display:block;margin-bottom:10px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-500)}

/* ---------- Product / feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split--rev .split-media{order:2}
.split-media{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px;display:flex;align-items:center;justify-content:center;
}
.split-media img{max-height:420px;width:auto;border-radius:10px}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;padding:9px 0;font-size:15.5px;color:var(--ink-700);
}
.checklist li::before{
  content:"";flex:none;width:20px;height:20px;margin-top:4px;border-radius:50%;
  background:var(--green-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232F9A3C' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat;
}

/* ---------- Model cards ---------- */
.models{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.model{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#fff;
  display:flex;flex-direction:column;transition:.2s ease;
}
.model:hover{box-shadow:var(--shadow-lg);border-color:var(--green-100)}
.model-media{background:var(--bg-soft);padding:36px;display:flex;justify-content:center;border-bottom:1px solid var(--line)}
.model-media img{max-height:280px;width:auto}
.model-body{padding:30px;display:flex;flex-direction:column;flex:1}
.tag{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  padding:5px 12px;border-radius:999px;background:var(--green-50);color:var(--green-700);margin-bottom:14px;
}
.price{font-size:26px;font-weight:700;margin:16px 0 4px}
.price small{font-size:14px;font-weight:500;color:var(--ink-500)}
.model .btn{margin-top:22px;align-self:flex-start}

/* ---------- Table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:15px}
th,td{padding:16px 22px;text-align:left;border-bottom:1px solid var(--line)}
thead th{background:var(--bg-soft);font-size:13.5px;letter-spacing:.03em;color:var(--ink-500);font-weight:600}
tbody tr:last-child td{border-bottom:none}
td:first-child{font-weight:600;color:var(--ink)}
.yes{color:var(--green-600);font-weight:700}
.no{color:var(--ink-300)}

/* ---------- Logos ---------- */
.logos{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:18px;
}
.logo-pill{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  height:74px;width:150px;display:flex;align-items:center;justify-content:center;padding:14px;
}
.logo-pill img{max-height:100%;max-width:100%;width:auto;object-fit:contain}

/* ---------- Gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.gallery figure{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.gallery img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:.3s ease}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figcaption{padding:12px 16px;font-size:13.5px;color:var(--ink-500);border-top:1px solid var(--line)}

/* ---------- CTA band ---------- */
.cta{
  background:linear-gradient(135deg,var(--green-700),var(--green));
  color:#fff;border-radius:var(--radius-lg);padding:56px;text-align:center;
}
.cta h2{margin-bottom:14px}
.cta p{color:rgba(255,255,255,.9);max-width:560px;margin:0 auto 28px}

/* ---------- Form ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field--full{grid-column:1/-1}
label{font-size:14px;font-weight:600;color:var(--ink-700)}
input,select,textarea{
  font-family:inherit;font-size:15px;padding:12px 15px;border:1px solid var(--line);
  border-radius:11px;background:#fff;color:var(--ink);transition:.15s ease;
}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(62,180,75,.15);
}
textarea{resize:vertical;min-height:120px}
.form-note{font-size:13.5px;color:var(--ink-500);margin-top:14px}
.form-ok{
  display:none;margin-top:18px;padding:14px 18px;border-radius:12px;
  background:var(--green-50);border:1px solid var(--green-100);color:var(--green-700);font-size:14.5px;
}
.form-ok.show{display:block}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
details{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:18px 22px;margin-bottom:12px}
details[open]{border-color:var(--green-100)}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:21px;color:var(--green-600);flex:none;line-height:1}
details[open] summary::after{content:"–"}
details p{margin-top:12px;color:var(--ink-500);font-size:15px}

/* ---------- Footer ---------- */
.site-footer{background:#2A2C2F;color:#C9CDD2;padding:64px 0 28px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.site-footer h4{color:#fff;font-size:14px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.site-footer a:hover{color:#fff}
.site-footer li{padding:5px 0}
.footer-brand img{height:44px;margin-bottom:16px;background:#fff;border-radius:10px;padding:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8D9298}

/* ---------- Responsive ---------- */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .hero-visual img{max-width:260px}
  .hero-stat{position:static;margin-top:22px;display:inline-block}
  .grid-4,.steps{grid-template-columns:repeat(2,1fr)}
  .grid-3,.gallery{grid-template-columns:repeat(2,1fr)}
  .split,.models,.footer-grid{grid-template-columns:1fr;gap:34px}
  .split--rev .split-media{order:0}
  .stats{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .nav-links{
    display:none;position:absolute;top:74px;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;
    padding:12px 20px 22px;gap:2px;box-shadow:var(--shadow);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 14px;border-radius:10px}
  .nav-cta{margin:10px 0 0}
  .nav-toggle{display:flex}
  .cta{padding:40px 26px}
}
@media(max-width:600px){
  .grid-2,.grid-3,.grid-4,.steps,.gallery,.form-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .section{padding:52px 0}
  .split-media{padding:22px}
}

/* ============================================================
   เพิ่มเติม — ปุ่มเข้าสู่ระบบ / dashboard / case study / disclaimer
   ============================================================ */
.brand small{white-space:nowrap}
.nav-login{margin-left:8px;padding:10px 17px;font-size:14px;gap:7px}
.nav-login svg{flex:none}

/* ภาพหน้าจอระบบหลังบ้าน */
.shot{
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  background:var(--bg-soft);box-shadow:var(--shadow-lg);
}
.shot img{width:100%;display:block}
.shot figcaption{
  padding:13px 20px;font-size:13.5px;color:var(--ink-500);
  border-top:1px solid var(--line);background:#fff;
}

/* แถบผลลัพธ์ลูกค้า (case study) */
.case{
  background:linear-gradient(135deg,#25792F,#3EB44B);color:#fff;
  border-radius:var(--radius-lg);padding:46px;
}
.case .eyebrow{color:rgba(255,255,255,.75)}
.case h2{margin-bottom:14px}
.case p{color:rgba(255,255,255,.9);max-width:640px}
.case-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:34px;
  background:rgba(255,255,255,.22);border-radius:var(--radius);overflow:hidden;
}
.case-stat{background:rgba(255,255,255,.11);padding:22px 18px;text-align:center}
.case-stat b{display:block;font-size:clamp(22px,2.6vw,30px);line-height:1.2}
.case-stat span{font-size:13.5px;color:rgba(255,255,255,.82)}

/* หมายเหตุ/ข้อจำกัดความรับผิด */
.disclaimer{
  margin-top:20px;padding:14px 18px;border-radius:12px;background:var(--bg-soft);
  border:1px solid var(--line);font-size:13px;color:var(--ink-500);line-height:1.7;
}
.case .disclaimer{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.24);color:rgba(255,255,255,.85)}

/* กล่อง CTA เข้าสู่ระบบ */
.login-band{
  margin-top:24px;display:flex;gap:24px;align-items:center;flex-wrap:wrap;
  justify-content:space-between;
}

/* ช่องติ๊กยินยอม */
.consent{display:flex;gap:11px;align-items:flex-start;font-size:14px;color:var(--ink-700);line-height:1.6}
.consent input{width:18px;height:18px;margin-top:3px;flex:none;accent-color:var(--green)}

@media(max-width:960px){
  .nav-login{margin:8px 0 0}
  .case{padding:32px 24px}
  .case-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .case-stats{grid-template-columns:1fr}
}

/* ข้อมูลนิติบุคคลท้ายเว็บ */
.footer-legal{
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;margin-bottom:18px;
  font-size:13.5px;line-height:1.9;color:#A9AEB4;
}
.footer-legal b{color:#E6E9EC;font-weight:600}
.footer-legal + .footer-bottom{border-top:none;padding-top:0}

/* ============================================================
   แก้ข้อความล้นขอบบนมือถือ
   สาเหตุ: ภาษาไทยไม่มีเว้นวรรค เบราว์เซอร์จึงมองเป็นคำเดียวยาว ๆ
   ทำให้คอลัมน์ของ grid/flex ยุบให้เล็กกว่านั้นไม่ได้ แล้วเนื้อหาก็ทะลุออกนอกกรอบ
   ============================================================ */

/* 1) อนุญาตให้ตัดคำไทยได้เมื่อบรรทัดไม่พอ */
body{overflow-wrap:break-word}
h1,h2,h3,h4,p,li,td,th,summary,label,figcaption,.chip,.tag,.price,.eyebrow{
  overflow-wrap:break-word;word-break:break-word;
}

/* 2) ให้ทุกคอลัมน์ยุบได้จริง (minmax(0,1fr) แทน 1fr) */
.hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr)}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.steps{grid-template-columns:repeat(4,minmax(0,1fr))}
.models{grid-template-columns:repeat(2,minmax(0,1fr))}
.split{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
.gallery{grid-template-columns:repeat(3,minmax(0,1fr))}
.stats{grid-template-columns:repeat(4,minmax(0,1fr))}
.case-stats{grid-template-columns:repeat(4,minmax(0,1fr))}
.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.footer-grid{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr)}

/* 3) ลูกของ flex ก็ต้องยุบได้ ไม่งั้นดันกล่องพ่อจนล้น */
.nav,.btn-row,.logos,.login-band,.footer-bottom,.hero-badges,.checklist li,.consent{min-width:0}
.login-band > div,.hero-visual,.model-body,.split > div,.card > *{min-width:0}

@media(max-width:960px){
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .grid-4,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split,.models,.footer-grid{grid-template-columns:minmax(0,1fr)}
  .stats,.case-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media(max-width:600px){
  .grid-2,.grid-3,.grid-4,.steps,.gallery,.form-grid{grid-template-columns:minmax(0,1fr)}
  .stats,.case-stats{grid-template-columns:minmax(0,1fr)}

  /* 4) ขนาดตัวอักษรบนจอแคบ — ลดขั้นต่ำลงให้พอดีจอ 360px */
  .h1{font-size:clamp(25px,7.2vw,34px);line-height:1.3}
  .h2{font-size:clamp(21px,6vw,28px);line-height:1.35}
  .h3{font-size:18px}
  .lead{font-size:16px}
  .price{font-size:23px}
  .case-stat b{font-size:24px}
  .step::before{font-size:28px}

  /* 5) การขึ้นบรรทัดที่ตั้งไว้สำหรับจอใหญ่ ไม่เหมาะกับจอแคบ ปล่อยให้ตัดเอง */
  h1 br,h2 br{display:none}

  /* 6) ปุ่มยาว ๆ ให้เต็มความกว้าง แทนที่จะดันจนล้น */
  .btn--lg{padding:14px 22px;font-size:15px}
  .btn-row .btn{flex:1 1 100%}
  .login-band .btn{width:100%}
  .chip{font-size:13px;padding:6px 13px}
}

/* 7) จอแคบมาก (เช่น 320px) */
@media(max-width:380px){
  .wrap{padding:0 18px}
  .brand span{font-size:15px}
  .h1{font-size:clamp(23px,7vw,30px)}
}

/* ============================================================
   แก้รายการติ๊กถูก (.checklist) ให้ข้อความไหลต่อกันเป็นย่อหน้าเดียว
   ปัญหาเดิม: li เป็น flex ทำให้ <b> <a> และข้อความธรรมดา
   กลายเป็นช่องแยกกันคนละช่อง ตัดบรรทัดคนละที ดูเป็นคอลัมน์เพี้ยน ๆ
   วิธีแก้: วางไอคอนแบบ absolute แล้วให้เนื้อหาเป็นข้อความไหลปกติ
   ============================================================ */
.checklist li{
  display:block;position:relative;
  padding:9px 0 9px 32px;
  font-size:15.5px;color:var(--ink-700);
}
.checklist li::before{
  position:absolute;left:0;top:13px;margin-top:0;
}
.checklist li b{color:var(--ink);font-weight:600}
.checklist li a{color:var(--green-700);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.checklist li a:hover{color:var(--green-600)}

/* บนมือถือ ป้าย "1,300+ กล่อง" ต้องอยู่ใต้รูป ไม่ใช่ยืนข้างรูปจนดันล้น */
@media(max-width:960px){
  .hero-visual{flex-direction:column;align-items:center;gap:18px;max-width:100%}
  .hero-visual img{max-width:min(260px,72vw)}
  .hero-stat{margin-top:0;text-align:center}
}

/* รูปหน้างานจริงในแถบ case study (อยู่บนพื้นเขียว) */
.case-photos{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:30px;
}
.case-photos figure{
  margin:0;border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
}
.case-photos img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.case-photos figcaption{
  padding:11px 14px;font-size:12.5px;line-height:1.6;color:rgba(255,255,255,.88);
}
@media(max-width:960px){.case-photos{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.case-photos{grid-template-columns:minmax(0,1fr)}}

/* ============================================================
   ปรับตัวอักษรให้เหมาะกับภาษาไทย
   ปัญหาเดิม: คำนำหัวเล็กเกินไป (12px) และเว้นระยะตัวอักษรกว้าง (.14em)
   ซึ่งเหมาะกับอังกฤษตัวพิมพ์ใหญ่ แต่ทำให้สระและวรรณยุกต์ไทยดูหลุดจากตัวอักษร
   ============================================================ */
.eyebrow{
  font-size:14px;
  letter-spacing:.04em;
  font-weight:700;
  margin-bottom:16px;
}

/* หัวข้อจัดกลางแล้วบรรทัดยาวไม่เท่ากัน ดูเอียง ๆ — ให้เบราว์เซอร์เกลี่ยความยาวบรรทัดเอง */
h1,h2{text-wrap:balance}
.section-head{max-width:780px}
.section-head p,.lead{text-wrap:pretty}

@media(max-width:600px){
  .eyebrow{font-size:13px;letter-spacing:.03em;margin-bottom:12px}
}

/* ============================================================
   การ์ดที่มีรูปประกอบ + แกลเลอรีผลงานติดตั้ง
   ============================================================ */
.card--photo{padding:0;overflow:hidden;display:flex;flex-direction:column}
.card--photo > img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.card--photo:hover > img{transform:scale(1.04)}
.card--photo .card-body{padding:22px 24px 26px}
.card--photo .card-body h3{margin-bottom:8px}
.card--photo .card-body p{color:var(--ink-500);font-size:15px}

/* แถบรูปสายการผลิต */
.prod-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.prod-grid figure{margin:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.prod-grid img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.prod-grid figcaption{padding:12px 15px;font-size:13.5px;color:var(--ink-500);border-top:1px solid var(--line)}
.prod-grid figure:first-child{grid-column:span 2;grid-row:span 2}
.prod-grid figure:first-child img{aspect-ratio:1/1}

@media(max-width:960px){
  .prod-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .prod-grid figure:first-child{grid-column:span 2;grid-row:auto}
  .prod-grid figure:first-child img{aspect-ratio:16/10}
}
@media(max-width:600px){
  .prod-grid{grid-template-columns:minmax(0,1fr)}
  .prod-grid figure:first-child{grid-column:auto}
}

/* กล่องแจ้งผลกรณีส่งฟอร์มไม่สำเร็จ */
.form-err{
  display:none;margin-top:18px;padding:14px 18px;border-radius:12px;
  background:#FDECEC;border:1px solid #F5C6C6;color:#9B2C2C;font-size:14.5px;line-height:1.7;
}
.form-err.show{display:block}
.form-err a{color:#9B2C2C;font-weight:700;text-decoration:underline;text-underline-offset:3px}
/* สถานะกำลังส่ง */
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none}
.field.is-invalid input,.field.is-invalid select,.field.is-invalid textarea{
  border-color:#E06B6B;box-shadow:0 0 0 3px rgba(224,107,107,.15);
}

/* ============================================================
   ตารางเทียบรุ่นบนมือถือ — พับเป็นการ์ดแทนการเลื่อนซ้ายขวา
   (เลื่อนแนวนอนใช้ได้ แต่คนมักไม่รู้ว่าเลื่อนได้ เลยเห็นไม่ครบ)
   ============================================================ */
@media(max-width:640px){
  .table-wrap{overflow-x:visible;border:none;background:transparent}
  .table-wrap table{min-width:0;width:100%}
  .table-wrap thead{display:none}
  .table-wrap tbody,.table-wrap tr,.table-wrap td{display:block;width:100%}
  .table-wrap tr{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    margin-bottom:12px;padding:6px 0 12px;
  }
  .table-wrap td{border:none;padding:5px 18px}
  .table-wrap td:first-child{
    font-weight:700;font-size:15.5px;color:var(--ink);
    padding:14px 18px 8px;border-bottom:1px solid var(--line);margin-bottom:6px;
  }
  .table-wrap td[data-label]::before{
    content:attr(data-label);
    display:block;font-size:12.5px;font-weight:600;color:var(--ink-500);
    letter-spacing:.02em;margin-bottom:1px;
  }
}

/* แถวหัวข้อหมวดในตารางเทียบรุ่น */
.row-group td{
  background:var(--green-50);font-weight:700;color:var(--green-700);
  font-size:14px;letter-spacing:.02em;padding:12px 22px;
}
td .small.muted{display:block;font-weight:400;font-size:12.5px;margin-top:2px}
@media(max-width:640px){
  .table-wrap tr.row-group{
    background:var(--green-50);border-color:var(--green-100);
    margin:18px 0 10px;padding:0;
  }
  .table-wrap .row-group td,
  .table-wrap .row-group td:first-child{
    padding:12px 18px;border:none;margin:0;
    color:var(--green-700);font-size:14px;
  }
}

/* ไอคอนช่องทางโซเชียลในท้ายเว็บ */
.social{display:flex;gap:10px;margin-top:18px}
.social a{
  width:40px;height:40px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);color:#C9CDD2;
  border:1px solid rgba(255,255,255,.16);transition:.18s ease;
}
.social a:hover{background:var(--green);color:#fff;border-color:var(--green);transform:translateY(-2px)}

/* ============================================================
   แอนิเมชันการทำงานของระบบ (#flow ในหน้าแรก)
   ------------------------------------------------------------
   ทุกอย่างวาดด้วย CSS/SVG ไม่มีไฟล์วิดีโอ โหลดไม่หนักขึ้น
   สถานะทั้งหมดคุมด้วย data-stage="1..4" ที่ .flow (main.js เป็นคนสลับ)
   ============================================================ */
.flow{margin:0 auto}
.flow-stage{
  display:grid;align-items:center;gap:0;
  grid-template-columns:minmax(0,1.25fr) 78px minmax(0,1fr) 78px minmax(0,1fr);
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 30px;
}
.flow-node{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:12px;
  opacity:.45;transition:opacity .4s ease,transform .4s ease;
}
.flow-node.is-on{opacity:1}
.flow-tag{font-size:12px;font-weight:600;letter-spacing:.03em;color:var(--ink-500);text-align:center}
.flow-node.is-on .flow-tag{color:var(--green-700)}

/* ---------- กล่อง QR Box + จอ ---------- */
.flow-boxwrap{position:relative;display:flex;justify-content:center;width:100%}
.flow-box{
  width:190px;background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:14px 14px 10px;box-shadow:var(--shadow);transition:box-shadow .4s ease;
}
.flow-node.is-on .flow-box{box-shadow:var(--shadow-lg)}
.flow-screen{
  position:relative;height:158px;border-radius:12px;overflow:hidden;
  background:linear-gradient(180deg,#20262B,#12161A);
}
.scr{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:8px;padding:12px;text-align:center;color:#fff;
  opacity:0;transform:translateY(8px);transition:opacity .34s ease,transform .34s ease;
}
.flow[data-stage="1"] .scr--amount,
.flow[data-stage="2"] .scr--qr,
.flow[data-stage="3"] .scr--ok,
.flow[data-stage="4"] .scr--ok{opacity:1;transform:none}
.scr-title{font-size:11.5px;color:#C9CDD2;letter-spacing:.02em;line-height:1.4}

/* จอที่ 1 — ปุ่มเลือกยอดเงิน */
.scr-keys{display:grid;grid-template-columns:repeat(2,1fr);gap:7px;width:100%;max-width:132px}
.scr-keys i{
  font-style:normal;font-size:13px;font-weight:600;padding:8px 0;border-radius:8px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14);transition:.25s ease;
}
.flow[data-stage="1"] .scr-keys i.is-pick{
  background:var(--green);border-color:var(--green);
  animation:flowPick 2.2s ease-in-out infinite;
}
@keyframes flowPick{
  0%,42%{transform:scale(1)}
  50%{transform:scale(.9)}
  60%,100%{transform:scale(1)}
}
/* วงกลมจำลองนิ้วกด */
.scr-tap{
  position:absolute;right:32px;bottom:40px;width:22px;height:22px;border-radius:50%;
  border:2px solid rgba(255,255,255,.85);opacity:0;
}
.flow[data-stage="1"] .scr-tap{animation:flowTap 2.2s ease-out infinite}
@keyframes flowTap{
  0%,38%{opacity:0;transform:scale(.4)}
  50%{opacity:.9;transform:scale(.7)}
  85%,100%{opacity:0;transform:scale(1.6)}
}

/* จอที่ 2 — QR + เส้นสแกน */
.scr-qr{position:relative;width:96px;height:96px;background:#fff;border-radius:8px;padding:7px}
.scr-qr svg{width:100%;height:100%;display:block}
.scr-scan{
  position:absolute;left:4px;right:4px;height:2px;border-radius:2px;top:6px;
  background:linear-gradient(90deg,transparent,var(--green),transparent);
  box-shadow:0 0 10px rgba(62,180,75,.9);opacity:0;
}
.flow[data-stage="2"] .scr-scan{animation:flowScan 1.6s ease-in-out infinite}
@keyframes flowScan{
  0%{transform:translateY(0);opacity:0}
  15%{opacity:1}
  85%{opacity:1}
  100%{transform:translateY(80px);opacity:0}
}

/* จอที่ 3 — ชำระสำเร็จ */
.scr--ok b{font-size:14px}
.scr--ok span{font-size:12px;color:#C9CDD2}
.scr-check{
  width:40px;height:40px;border-radius:50%;background:var(--green);
  display:flex;align-items:center;justify-content:center;
}
.flow[data-stage="3"] .scr-check{animation:flowPop .5s cubic-bezier(.2,1.4,.4,1) 1}
@keyframes flowPop{0%{transform:scale(.3);opacity:0}100%{transform:scale(1);opacity:1}}
.scr-check svg{width:20px;height:20px}

/* ไฟสถานะ + ชื่อรุ่นบนตัวกล่อง */
.flow-boxfoot{display:flex;align-items:center;gap:7px;justify-content:center;padding-top:9px}
.flow-boxfoot span{font-size:10.5px;font-weight:600;letter-spacing:.08em;color:var(--ink-300)}
.flow-led{width:7px;height:7px;border-radius:50%;background:var(--ink-300);transition:.3s ease}
.flow-node.is-on .flow-led{background:var(--green);box-shadow:0 0 0 4px rgba(62,180,75,.18)}

/* ---------- มือถือลูกค้า (โผล่ตอนสแกนจ่าย) ---------- */
.flow-phone{
  position:absolute;right:-2px;bottom:-10px;width:76px;background:#fff;
  border:1px solid var(--line);border-radius:12px;padding:7px 6px;box-shadow:var(--shadow);
  opacity:0;transform:translate(12px,12px) rotate(6deg);
  transition:opacity .35s ease,transform .35s ease;
}
.flow[data-stage="2"] .flow-phone{opacity:1;transform:translate(0,0) rotate(6deg)}
.flow-phone-screen{
  height:62px;border-radius:8px;background:#12161A;
  display:flex;align-items:center;justify-content:center;
}
.flow-phone-frame{
  width:34px;height:34px;border-radius:6px;border:2px solid var(--green);
  box-shadow:0 0 0 3px rgba(62,180,75,.16);
}
.flow[data-stage="2"] .flow-phone-frame{animation:flowFrame 1.6s ease-in-out infinite}
@keyframes flowFrame{0%,100%{transform:scale(1)}50%{transform:scale(.86)}}
.flow-phone small{display:block;text-align:center;font-size:9.5px;color:var(--ink-500);padding-top:5px}

/* ---------- สายสัญญาณระหว่างจุด ---------- */
.flow-link{position:relative;height:64px;display:flex;align-items:center;justify-content:center}
.flow-link::before{
  content:"";position:absolute;left:0;right:0;top:50%;height:2px;margin-top:-1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 7px,transparent 7px 13px);
}
.flow-link.is-on::before{
  background:repeating-linear-gradient(90deg,var(--green-100) 0 7px,transparent 7px 13px);
}
.flow-dot{
  position:absolute;top:50%;left:0;width:10px;height:10px;margin-top:-5px;border-radius:50%;
  background:var(--green);box-shadow:0 0 0 5px rgba(62,180,75,.16);opacity:0;
}
.flow-link.is-on .flow-dot{animation:flowRun 1.15s ease-in-out infinite}
@keyframes flowRun{
  0%{left:0;opacity:0}
  12%{opacity:1}
  88%{opacity:1}
  100%{left:100%;opacity:0}
}
.flow-link em{
  position:absolute;top:calc(50% + 16px);font-style:normal;font-size:11px;line-height:1.35;
  color:var(--ink-300);text-align:center;width:106px;transition:color .3s ease;
}
.flow-link.is-on em{color:var(--green-700);font-weight:600}

/* ---------- เครื่องเดิมของลูกค้า ---------- */
.flow-machine svg{width:118px;height:auto}
.flow-drum{transform-origin:60px 84px}
.flow-node--machine.is-on .flow-drum{animation:flowSpin 2.6s linear infinite}
@keyframes flowSpin{to{transform:rotate(360deg)}}
.flow-state{
  display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;
  padding:5px 11px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--ink-500);
}
.flow-node--machine.is-on .flow-state{background:var(--green-50);border-color:var(--green-100);color:var(--green-700)}

/* ---------- การ์ดระบบหลังบ้าน ---------- */
.flow-dash{
  width:100%;max-width:210px;background:#fff;border:1px solid var(--line);
  border-radius:14px;overflow:hidden;box-shadow:var(--shadow);
}
.flow-dash-bar{display:flex;gap:5px;padding:9px 12px;border-bottom:1px solid var(--line);background:var(--bg-soft)}
.flow-dash-bar i{width:7px;height:7px;border-radius:50%;background:var(--line)}
.flow-dash-body{padding:13px 14px 15px}
.flow-dash-label{display:block;font-size:11px;color:var(--ink-500);margin-bottom:2px}
.flow-dash-sum{font-size:22px;font-weight:700;letter-spacing:-.02em;line-height:1.2}
.flow-dash-sum small{font-size:12px;font-weight:600;color:var(--ink-500);margin-left:3px}
.flow-dash-chart{display:flex;align-items:flex-end;gap:5px;height:36px;margin:11px 0 10px}
.flow-dash-chart i{flex:1;border-radius:3px 3px 0 0;background:var(--green-100);transition:height .55s ease}
.flow-dash-chart i:last-child{background:var(--green);height:34%}
.flow-node--cloud.is-on .flow-dash-chart i:last-child{height:100%}
.flow-dash-row{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  font-size:11.5px;color:var(--ink-500);border-top:1px solid var(--line);padding-top:9px;
  opacity:0;transform:translateY(5px);transition:opacity .4s ease,transform .4s ease;
}
.flow-dash-row b{color:var(--green-700)}
.flow-node--cloud.is-on .flow-dash-row{opacity:1;transform:none}

/* ---------- แถบควบคุม + ขั้นตอนที่ไฮไลต์ตามภาพ ---------- */
.flow-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:14px 2px 34px}
.flow-note{font-size:12.5px;color:var(--ink-500)}
.flow-play{
  display:inline-flex;align-items:center;gap:7px;flex:none;
  font-family:inherit;font-size:13px;font-weight:600;color:var(--ink-700);
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 15px;cursor:pointer;transition:.18s ease;
}
.flow-play:hover{border-color:var(--ink-300);background:var(--bg-soft)}
.flow-play svg{width:12px;height:12px;flex:none}
.flow-steps .step{cursor:pointer}
.flow-steps .step::after{
  content:"";display:block;height:2px;border-radius:2px;background:var(--line);
  margin-top:14px;transform:scaleX(.001);transform-origin:left;transition:transform .35s ease;
}
.flow-steps .step.is-on::before{color:var(--green)}
.flow-steps .step.is-on h3{color:var(--green-700)}
.flow-steps .step.is-on::after{background:var(--green);transform:scaleX(1)}
.flow-steps .step:focus-visible{outline:2px solid var(--green);outline-offset:6px;border-radius:8px}

/* ---------- จอแคบ: เรียงลงล่าง สายสัญญาณกลายเป็นแนวตั้ง ---------- */
@media(max-width:900px){
  .flow-stage{grid-template-columns:minmax(0,1fr);padding:28px 20px}
  .flow-link{height:58px;width:100%}
  .flow-link::before{
    left:50%;right:auto;top:0;bottom:0;height:auto;width:2px;margin:0 0 0 -1px;
    background:repeating-linear-gradient(180deg,var(--line) 0 7px,transparent 7px 13px);
  }
  .flow-link.is-on::before{
    background:repeating-linear-gradient(180deg,var(--green-100) 0 7px,transparent 7px 13px);
  }
  .flow-dot{left:50%;top:0;margin:0 0 0 -5px}
  .flow-link.is-on .flow-dot{animation:flowRunY 1.15s ease-in-out infinite}
  @keyframes flowRunY{
    0%{top:0;opacity:0}
    12%{opacity:1}
    88%{opacity:1}
    100%{top:100%;opacity:0}
  }
  .flow-link em{position:absolute;top:auto;left:calc(50% + 14px);width:128px;text-align:left}
  .flow-bar{flex-direction:column;align-items:flex-start;gap:10px}
}
@media(max-width:600px){
  .flow-box{width:100%;max-width:210px}
  .flow-phone{right:0;bottom:-14px}
  .flow-machine svg{width:104px}
  .flow-dash{max-width:196px}
  .flow-link{height:52px}
}

/* เคารพการตั้งค่า "ลดการเคลื่อนไหว" ของเครื่องผู้ใช้ */
@media(prefers-reduced-motion:reduce){
  .flow *,.flow *::before,.flow *::after{animation:none!important;transition-duration:.01ms!important}
}