:root{--primary:#5ec2e4;--primary-dark:#075985;--accent:#f9e74f;--orange:#e57000;--text:#1f2937;--muted:#4b5563;--panel:#f6fbff;--radius:16px;--maxw:1100px;--shadow:0 10px 28px rgba(17,24,39,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);line-height:1.65;background:#fff}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(100% - 2rem,var(--maxw));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid rgba(0,0,0,.07)}.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand{display:flex;align-items:center;gap:.6rem;font-weight:850}.brand img{width:42px;height:42px;border-radius:50%}.nav-links{display:flex;align-items:center;gap:.85rem;flex-wrap:wrap}.nav-links a:hover{color:var(--primary-dark)}
.language-switcher{display:inline-flex;padding:.18rem;background:#e6f6fc;border:1px solid #bce8f7;border-radius:10px}.language-switcher button{border:0;background:transparent;color:var(--primary-dark);padding:.32rem .52rem;border-radius:7px;font:inherit;font-weight:800;cursor:pointer}.language-switcher button[aria-pressed=true]{background:var(--primary-dark);color:#fff}
.page-hero{padding:5rem 0 4rem;background:radial-gradient(650px 260px at 80% 0,rgba(94,194,228,.28),transparent),linear-gradient(180deg,#fff,#f8fdff)}.eyebrow{display:inline-block;background:var(--accent);padding:.25rem .65rem;border-radius:999px;font-weight:750;font-size:.82rem}.page-hero h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.15;margin:.8rem 0;max-width:900px}.page-hero p{font-size:1.1rem;color:var(--muted);max-width:820px}.actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:1.4rem}.button{display:inline-flex;padding:.75rem 1rem;border:1px solid rgba(0,0,0,.12);border-radius:11px;font-weight:750;background:#fff}.button.primary{background:var(--primary-dark);color:#fff;border-color:var(--primary-dark)}
main section{padding:3.6rem 0}main section:nth-child(odd):not(.page-hero){background:var(--panel)}h2{font-size:clamp(1.5rem,2.5vw,2.15rem);margin:0 0 .7rem;color:#0f172a}h3{margin:.15rem 0 .45rem;color:#0f172a}.intro{color:var(--muted);max-width:820px}.grid{display:grid;gap:1rem;margin-top:1.4rem}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:#fff;border:1px solid rgba(0,0,0,.07);border-radius:var(--radius);padding:1.2rem;box-shadow:var(--shadow)}.card ul,.prose ul{padding-left:1.2rem;margin:.5rem 0}.card li,.prose li{margin:.4rem 0}.chips{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:1rem}.chip{background:#fff8bd;border-radius:999px;padding:.23rem .55rem;font-size:.78rem}.related a{color:var(--primary-dark);font-weight:750}.notice{border-left:5px solid var(--primary);background:#eefaff;padding:1rem 1.2rem;border-radius:0 12px 12px 0}.contact-box{background:linear-gradient(135deg,var(--primary-dark),#0e7490);color:#fff;border-radius:var(--radius);padding:1.5rem}.contact-box h2{color:#fff}.contact-box a{color:#fff;text-decoration:underline}.site-footer{background:#0f172a;color:#cbd5e1;padding:2.2rem 0}.footer-grid{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}.breadcrumbs{color:var(--muted);font-size:.9rem;margin-bottom:1rem}.breadcrumbs a{color:var(--primary-dark)}
html[data-lang=en] [data-copy=th],html[data-lang=th] [data-copy=en]{display:none!important}
@media(max-width:760px){.grid.two,.grid.three{grid-template-columns:1fr}.nav{align-items:flex-start;padding:.65rem 0}.nav-links>a:not(.contact-link){display:none}.page-hero{padding:3.5rem 0 3rem}}