:root{--ink:#123c50;--green:#07835d;--dark:#064d3e;--cream:#fffdf5;--blue:#135b93;--sky:#e1f2fb;--line:#cddfd9;--muted:#526c75}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font:16px/1.75 system-ui,-apple-system,"IBM Plex Sans Thai",sans-serif}a{color:var(--green)}a:focus-visible{outline:3px solid var(--blue);outline-offset:4px}.skip{position:absolute;left:-9999px}.skip:focus{left:1rem;top:1rem;background:#fff;padding:.75rem;z-index:3}.site-header{min-height:82px;padding:.5rem max(1.25rem,calc((100% - 1120px)/2));display:flex;align-items:center;gap:1.5rem;background:#fff;border-bottom:1px solid var(--line)}.logo img{width:68px;height:68px;object-fit:contain}.site-header nav{display:flex;gap:1.2rem;margin-left:auto}.site-header nav a,.language{font-weight:650;text-decoration:none}.language{white-space:nowrap}main,footer{width:min(1120px,calc(100% - 2.5rem));margin:auto}.hero{padding:4.5rem 0 2.5rem;max-width:880px}.eyebrow{color:var(--green);font-weight:750;letter-spacing:.1em;font-size:.78rem}.hero h1{font-size:clamp(2.2rem,6vw,4.4rem);line-height:1.17;letter-spacing:-.035em;margin:.6rem 0 1.4rem}.lead{font-size:clamp(1.1rem,2vw,1.35rem);color:var(--muted)}.notice{margin-top:1.7rem;padding:1rem 1.2rem;background:var(--sky);border-left:4px solid var(--blue);border-radius:.5rem}.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin:1rem 0 2.5rem}.cards article,main>section:not(.hero):not(.cta){background:#fff;padding:1.5rem;border:1px solid var(--line);border-radius:1rem}.cards h2,section h2{margin:.1rem 0 .5rem;font-size:1.35rem}.cards p,section p{margin:.2rem 0;color:var(--muted)}.caveat{padding:1rem 1.2rem;border:1px solid #b5d5bd;border-radius:.7rem;background:#edf7ed}.cta{margin:4rem 0 3rem;padding:2.2rem;background:linear-gradient(120deg,var(--dark),var(--blue));color:#fff;border-radius:1.2rem}.cta h2{color:#fff;font-size:1.8rem}.cta p{color:#e2f2ec}.actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.3rem}.button{display:inline-block;background:#d9f3d9;color:var(--dark);padding:.75rem 1rem;border-radius:.55rem;text-decoration:none;font-weight:700}.button.secondary{background:#fff}.cta .text{color:#fff;padding:.7rem}footer{border-top:1px solid var(--line);padding:2rem 0 3rem;display:flex;justify-content:space-between;gap:2rem;color:var(--muted)}footer p{max-width:700px;margin:.35rem 0}@media(max-width:760px){.site-header{flex-wrap:wrap;gap:.6rem 1rem}.site-header nav{order:3;width:100%;overflow:auto;padding:.35rem 0;gap:1rem}.language{margin-left:auto}.hero{padding-top:3rem}.cards{grid-template-columns:1fr}footer{display:block}.actions{display:grid}.button,.cta .text{text-align:center}}
/* Long-form guide reading and navigation */
.breadcrumbs{margin:0 0 1.5rem}.breadcrumbs ol{display:flex;flex-wrap:wrap;gap:.45rem;list-style:none;padding:0;margin:0;color:var(--muted);font-size:.9rem}.breadcrumbs li+li:before{content:"/";margin-right:.45rem}.guide-content{display:grid;gap:1.25rem;max-width:900px;min-width:0}.guide-content>section{min-width:0}
.table-wrap{width:100%;max-width:100%;overflow-x:auto;margin:1rem 0}table{width:100%;min-width:620px;border-collapse:collapse;text-align:left}th,td{padding:.75rem;border:1px solid var(--line);vertical-align:top}th{background:#eaf5ef;color:var(--dark)}.print-button{border:0;border-radius:.55rem;padding:.7rem 1rem;background:var(--green);color:#fff;font:inherit;font-weight:700;cursor:pointer}@media print{.site-header,.cta,footer,.related,.print-button{display:none!important}.guide-content>section{break-inside:avoid;border-color:#999}body{background:#fff}main{width:100%}}.guide-content>section{background:#fff;padding:clamp(1.35rem,3vw,2.2rem);border:1px solid var(--line);border-radius:1rem}.guide-content h2{font-size:clamp(1.35rem,3vw,1.75rem);line-height:1.4}.guide-content h3{font-size:1.08rem;margin:.4rem 0}.guide-content p{color:var(--ink);margin:.65rem 0}.guide-content ul,.guide-content ol{padding-left:1.35rem;margin:.8rem 0}.guide-content li{margin:.45rem 0;padding-left:.2rem}.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin-top:1rem}.split>div{padding:1rem;background:#f1f7f3;border-radius:.8rem}.checklist li::marker{color:var(--green)}.steps{counter-reset:guide-step;list-style:none;padding-left:0!important}.steps li{position:relative;padding-left:2.7rem!important;min-height:2rem}.steps li:before{counter-increment:guide-step;content:counter(guide-step);position:absolute;left:0;top:.05rem;width:1.8rem;height:1.8rem;border-radius:50%;display:grid;place-items:center;background:var(--green);color:#fff;font-weight:700}.related{margin:2.5rem 0}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-top:1rem}.related-grid a{display:flex;flex-direction:column;gap:.35rem;background:#fff;border:1px solid var(--line);border-radius:.9rem;padding:1.15rem;text-decoration:none}.related-grid span{color:var(--muted);font-size:.9rem}.related-grid a:hover{border-color:var(--green)}
@media(max-width:760px){.site-header{gap:.7rem;padding-inline:1rem}.logo img{width:54px;height:54px}.site-header nav{padding:.25rem 0 .65rem}.site-header nav a{white-space:nowrap;font-size:.86rem}.hero{padding-top:2.6rem}.split,.related-grid{grid-template-columns:1fr}.guide-content>section{padding:1.25rem}}