:root{--ink:#102a2e;--sea:#0f766e;--sea2:#14b8a6;--sand:#f7f1e3;--sun:#f59e0b;--white:#fff;--muted:#607276;--line:#dbe7e5;--shadow:0 18px 50px rgba(16,42,46,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"TH Sarabun New","Sarabun",Tahoma,sans-serif;color:var(--ink);background:#fbfdfc;line-height:1.5}a{color:inherit;text-decoration:none}img{max-width:100%}.container{width:min(1180px,calc(100% - 32px));margin:auto}.topbar{background:#092f33;color:#d9f7f2;font-size:17px;padding:8px 0}.topbar .container,.nav .container{display:flex;align-items:center;justify-content:space-between;gap:18px}.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.brand{font-size:28px;font-weight:800;padding:14px 0}.brand span{color:var(--sea)}.navlinks{display:flex;gap:20px;align-items:center;font-size:18px;font-weight:700}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:999px;padding:12px 20px;font:700 18px inherit;cursor:pointer;background:var(--sea);color:#fff;box-shadow:0 8px 24px rgba(15,118,110,.22)}.btn.alt{background:#fff;color:var(--sea);border:1px solid var(--line);box-shadow:none}.hero{min-height:720px;display:grid;place-items:center;color:#fff;position:relative;overflow:hidden;background:linear-gradient(135deg,rgba(3,47,54,.96),rgba(15,118,110,.78)),radial-gradient(circle at 80% 20%,#33d5c2,transparent 35%),linear-gradient(45deg,#0e5d63,#12323c)}.hero:after{content:"";position:absolute;inset:auto -8% -38% -8%;height:58%;background:var(--sand);border-radius:50% 50% 0 0/35% 35% 0 0}.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;padding:84px 0 145px}.eyebrow{display:inline-block;text-transform:uppercase;letter-spacing:.16em;font-size:15px;font-weight:800;color:#bdfbf2}.hero h1{font-size:clamp(48px,7vw,84px);line-height:.95;margin:14px 0 20px;letter-spacing:-.04em}.hero p{font-size:24px;max-width:680px;color:#e6fffb}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.glass{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);backdrop-filter:blur(12px);padding:26px;border-radius:28px;box-shadow:var(--shadow)}.glass h3{font-size:30px;margin:0 0 12px}.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.quick-card{background:#fff;color:var(--ink);padding:18px;border-radius:18px;font-size:20px;font-weight:800}.quick-card small{display:block;color:var(--muted);font-size:15px;font-weight:500}.section{padding:88px 0}.section.sand{background:var(--sand)}.section h2{font-size:clamp(38px,5vw,58px);line-height:1;margin:0 0 14px}.lead{font-size:22px;color:var(--muted);max-width:780px}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px}.card{background:#fff;border:1px solid var(--line);border-radius:24px;padding:25px;box-shadow:0 10px 30px rgba(16,42,46,.06)}.card .icon{font-size:34px}.card h3{font-size:26px;margin:12px 0 6px}.card p{font-size:18px;color:var(--muted)}.journey{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:35px}.step{position:relative;background:#fff;border-radius:20px;padding:24px;border:1px solid var(--line)}.step b{display:block;color:var(--sea);font-size:15px}.step strong{font-size:23px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}.formbox{background:#fff;border-radius:28px;padding:30px;box-shadow:var(--shadow);border:1px solid var(--line)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:17px;font-weight:800}.field input,.field select,.field textarea{width:100%;border:1px solid #cbdad8;border-radius:14px;padding:13px 14px;font:18px inherit;background:#fff}.field textarea{min-height:120px;resize:vertical}.hidden{position:absolute;left:-9999px}.notice{font-size:15px;color:var(--muted)}.success,.error{padding:13px 15px;border-radius:14px;margin-top:14px;display:none}.success{background:#dcfce7;color:#166534}.error{background:#fee2e2;color:#991b1b}.official{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}.official a{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;font-size:19px;font-weight:800}.footer{background:#092f33;color:#d7efeb;padding:54px 0 28px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:35px}.footer h3{color:#fff;font-size:25px}.footer a{display:block;margin:7px 0}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:20px}.menu-btn{display:none;background:none;border:0;font-size:28px}
@media(max-width:900px){.hero .container,.two-col{grid-template-columns:1fr}.hero{min-height:auto}.hero .container{padding-top:64px}.cards{grid-template-columns:repeat(2,1fr)}.journey{grid-template-columns:1fr 1fr}.official{grid-template-columns:1fr 1fr}.navlinks{display:none;position:absolute;top:67px;left:0;right:0;background:#fff;padding:22px;flex-direction:column}.navlinks.open{display:flex}.menu-btn{display:block}.hero h1{font-size:58px}}
@media(max-width:560px){.cards,.quick-grid,.form-grid,.journey,.official,.footer-grid{grid-template-columns:1fr}.hero h1{font-size:48px}.hero p{font-size:21px}.topbar{display:none}.section{padding:66px 0}}