/* ===== DESIGN TOKENS — แก้สีทั้งเว็บได้ที่นี่ =====
   Layout: Mobile-first, แถบ CTA ล่างจอบนมือถือ, เนื้อหา 1 คอลัมน์ ขยายเป็น 2–3 คอลัมน์บนจอใหญ่ */
:root{
  --primary:#0E3B5C;      /* น้ำเงินเหล็ก — สีหลัก น่าเชื่อถือ */
  --primary-dk:#082539;
  --accent:#F2A516;       /* เหลืองอำพันรถยก — สีรอง/ปุ่มโทร */
  --accent-dk:#C98300;
  --line:#06C755;         /* สี LINE */
  --ink:#16222C;
  --muted:#5A6B78;
  --bg:#F5F7F9;
  --card:#FFFFFF;
  --border:#DCE3E9;
  --radius:12px;
  --font-head:"Anuphan","Prompt",system-ui,sans-serif;
  --font-body:"IBM Plex Sans Thai","Sarabun",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px;padding-bottom:72px}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary)}
h1,h2,h3{font-family:var(--font-head);line-height:1.3;text-wrap:balance;margin:0 0 .5em}
h1{font-size:clamp(1.7rem,5.5vw,2.9rem);font-weight:700}
h2{font-size:clamp(1.4rem,4vw,2rem);font-weight:700}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em}
.wrap{max-width:1140px;margin:0 auto;padding-inline:16px}
section{padding-block:56px}
.eyebrow{display:inline-block;font-size:.85rem;font-weight:600;letter-spacing:.06em;color:var(--accent-dk);text-transform:uppercase;margin-bottom:6px}
.sec-head{max-width:720px;margin-bottom:28px}
.sec-head p{color:var(--muted)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-head);font-weight:700;font-size:1.05rem;padding:13px 22px;border-radius:999px;text-decoration:none;border:0;cursor:pointer;transition:transform .15s,box-shadow .15s;white-space:nowrap}
.btn:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(0,0,0,.18)}
.btn svg{width:20px;height:20px;flex:none}
.btn-call{background:var(--accent);color:#1b1300}
.btn-line{background:var(--line);color:#fff}
.btn-ghost{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ===== HEADER ===== */
.topbar{background:var(--primary-dk);color:#cfe0ec;font-size:.85rem;text-align:center;padding:6px 16px}
.topbar b{color:var(--accent)}
header.site{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:66px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--primary);font-family:var(--font-head);font-weight:700}
.logo img{height:48px;width:auto}
.logo span{font-size:1rem;line-height:1.2}
.menu{display:none;gap:22px;list-style:none;margin:0;padding:0}
.menu a{text-decoration:none;color:var(--ink);font-weight:500}
.menu a:hover{color:var(--accent-dk)}
.nav-cta{display:flex;gap:8px}
.nav-cta .btn{padding:10px 14px;font-size:.95rem}
.nav-cta .lbl{display:none}
.burger{background:none;border:1px solid var(--border);border-radius:8px;padding:8px 10px;cursor:pointer;font-size:1.2rem}
.mnav{display:none;border-top:1px solid var(--border);background:#fff}
.mnav.open{display:block}
.mnav a{display:block;padding:12px 16px;border-bottom:1px solid var(--border);text-decoration:none;color:var(--ink)}

/* ===== HERO ===== */
.hero{background:linear-gradient(160deg,var(--primary) 0%,var(--primary-dk) 100%);color:#fff;padding-block:40px 48px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:8px;background:repeating-linear-gradient(-45deg,var(--accent) 0 18px,#1b1300 18px 36px)}
.hero-grid{display:grid;gap:28px;align-items:center}
.hero h1 span{color:var(--accent)}
.hero .sub{font-size:1.15rem;color:#d5e3ee}
.hero ul{list-style:none;padding:0;margin:0 0 22px;display:grid;gap:6px}
.hero li::before{content:"✓ ";color:var(--accent);font-weight:700}
.hero-img{border-radius:var(--radius);overflow:hidden;box-shadow:0 18px 40px rgba(0,0,0,.35);border:4px solid rgba(255,255,255,.12)}
.hero-img img{aspect-ratio:4/3;object-fit:cover;width:100%}
.crumb{font-size:.85rem;color:#9fbad0;margin-bottom:10px}
.crumb a{color:#cfe0ec}

/* ===== FEATURES ===== */
.features{padding-block:0;margin-top:-1px}
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;transform:translateY(-24px)}
.feat{background:var(--card);border-radius:var(--radius);padding:18px 14px;text-align:center;box-shadow:0 4px 18px rgba(14,59,92,.1)}
.feat .ic{width:52px;height:52px;margin:0 auto 8px;border-radius:50%;background:#FFF4DC;display:grid;place-items:center}
.feat .ic svg{width:26px;height:26px;stroke:var(--accent-dk)}
.feat h3{margin:0 0 4px;font-size:1.05rem}
.feat p{margin:0;font-size:.9rem;color:var(--muted)}

/* ===== SERVICES ===== */
.svc-grid{display:grid;gap:18px}
.svc{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.svc img{aspect-ratio:16/10;object-fit:cover;width:100%}
.svc-body{padding:18px;display:flex;flex-direction:column;gap:6px;flex:1}
.svc-body p{color:var(--muted);font-size:.95rem;flex:1}
.svc.current{border:2px solid var(--accent)}
.svc .tag{align-self:flex-start;font-size:.75rem;background:var(--accent);color:#1b1300;padding:2px 10px;border-radius:999px;font-weight:600}

/* ===== CONTENT / ARTICLE ===== */
.article{display:grid;gap:28px;align-items:start}
.article img{border-radius:var(--radius)}
.article ol,.article ul{padding-left:1.2em}
.article li{margin-bottom:6px}
.steps{counter-reset:s;list-style:none;padding:0!important;display:grid;gap:12px}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:14px 14px 14px 58px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:14px;top:14px;width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700;font-family:var(--font-head)}

/* ===== CALCULATOR ===== */
.calc-sec{background:#fff;border-block:1px solid var(--border)}
.calc{display:grid;gap:24px}
.calc form{display:grid;gap:14px}
.field label{display:block;font-weight:600;margin-bottom:4px;font-size:.95rem}
.field select,.field input{width:100%;padding:12px;border:1px solid var(--border);border-radius:8px;font:inherit;background:#fff;color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{display:flex;gap:6px;align-items:center;border:1px solid var(--border);border-radius:999px;padding:6px 12px;font-weight:400;cursor:pointer;font-size:.9rem}
.result{background:var(--primary);color:#fff;border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:10px}
.result .price{font-family:var(--font-head);font-size:clamp(1.8rem,6vw,2.5rem);font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2}
.result small{color:#b9cfe0}
.result .btn{align-self:stretch}

/* ===== WHY ===== */
.why{display:grid;gap:28px;align-items:center}
.why img{border-radius:var(--radius);aspect-ratio:4/3;object-fit:cover;width:100%}
.checks{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:12px}
.checks li{display:flex;gap:10px}
.checks li::before{content:"";flex:none;width:24px;height:24px;margin-top:2px;border-radius:50%;background:var(--primary) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23F2A516' stroke-width='3'%3E%3Cpath d='M5 12l5 5 9-10'/%3E%3C/svg%3E") center/14px no-repeat}

/* ===== REVIEWS ===== */
.rev-grid{display:grid;gap:16px}
.rev{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column}
.rev img{aspect-ratio:4/3;object-fit:cover;width:100%}
.rev-body{padding:16px}
.stars{color:var(--accent);letter-spacing:2px;font-size:1.1rem}
.rev-body p{margin:6px 0 10px;font-size:.95rem}
.rev-who{font-weight:600;font-size:.9rem}
.rev-who span{color:var(--muted);font-weight:400}

/* ===== AREA ===== */
.area-sec{background:var(--primary-dk);color:#e6eef4}
.area-sec h2{color:#fff}
.regions{display:grid;gap:14px}
.region{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:16px}
.region h3{color:var(--accent);margin-bottom:6px}
.region p{margin:0;font-size:.92rem;color:#c3d4e1}

/* ===== FAQ ===== */
.faq{display:grid;gap:10px;max-width:860px}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:0 16px}
.faq summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.4rem;color:var(--accent-dk);line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);padding-bottom:14px;margin:0}

/* ===== RELATED ===== */
.related{display:grid;gap:12px}
.related a{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;text-decoration:none;color:var(--ink);font-weight:600}
.related a:hover{border-color:var(--accent)}
.related a::after{content:"→";color:var(--accent-dk);font-size:1.3rem}
.kw{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.kw a{font-size:.85rem;background:#E8EEF3;border-radius:999px;padding:4px 12px;text-decoration:none;color:var(--primary)}

/* ===== CTA BAND ===== */
.cta-band{background:var(--accent);color:#1b1300;text-align:center}
.cta-band h2{margin-bottom:8px}
.cta-band .btn-row{justify-content:center}
.cta-band .btn-call{background:var(--primary);color:#fff}

/* ===== FOOTER ===== */
footer{background:#0A1C29;color:#b5c6d3;padding-block:44px 24px;font-size:.95rem}
.foot{display:grid;gap:28px}
footer h3{color:#fff;font-size:1.05rem}
footer a{color:#fff}
footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.map{border-radius:var(--radius);overflow:hidden;border:0;width:100%;height:220px}
.copy{border-top:1px solid #1f3343;margin-top:28px;padding-top:16px;font-size:.85rem;text-align:center}

/* ===== MOBILE STICKY CTA ===== */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:8px 8px calc(8px + env(safe-area-inset-bottom,0px));background:#fff;box-shadow:0 -4px 16px rgba(0,0,0,.12)}
.sticky-cta .btn{border-radius:10px;padding:12px 8px;font-size:1rem}

/* ===== RESPONSIVE ===== */
@media (min-width:640px){
  .feat-grid{grid-template-columns:repeat(4,1fr)}
  .svc-grid,.rev-grid,.related{grid-template-columns:repeat(2,1fr)}
  .regions{grid-template-columns:repeat(2,1fr)}
  .nav-cta .lbl{display:inline}
}
@media (min-width:960px){
  body{padding-bottom:0}
  .sticky-cta{display:none}
  .menu{display:flex}
  .burger,.mnav{display:none!important}
  .hero{padding-block:64px 72px}
  .hero-grid,.why,.article,.calc{grid-template-columns:1.1fr .9fr}
  .svc-grid{grid-template-columns:repeat(4,1fr)}
  .rev-grid,.regions{grid-template-columns:repeat(3,1fr)}
  .related{grid-template-columns:repeat(3,1fr)}
  .foot{grid-template-columns:1.3fr 1fr 1fr 1.4fr}
  section{padding-block:72px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* กันเนื้อหาภาษาไทยดันกริดล้นจอ */
.hero-grid,.article,.why,.calc,.foot{grid-template-columns:minmax(0,1fr)}
.hero-grid>*,.article>*,.why>*,.calc>*,.foot>*{min-width:0}
.btn{white-space:normal;text-align:center}
@media (min-width:960px){.hero-grid,.why,.article,.calc{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr)}.foot{grid-template-columns:1.3fr 1fr 1fr 1.4fr}}

/* ===== สารบัญพื้นที่ / ลิงก์พื้นที่ย่อย ===== */
.dir{display:grid;gap:10px}
.dir details{border:1px solid var(--border);border-radius:var(--radius);padding:0 16px;background:var(--bg)}
.dir summary{cursor:pointer;font-family:var(--font-head);font-weight:600;padding:14px 0;display:flex;justify-content:space-between;gap:12px}
.dir summary span{color:var(--muted);font-weight:400;font-size:.9rem}
.dir-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,200px),1fr));gap:6px 16px;padding-bottom:16px}
.dir-links a{font-size:.92rem;text-decoration:none;padding:4px 0;border-bottom:1px dashed var(--border)}
.dir-links a:hover{color:var(--accent-dk)}