@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+Thai:wght@400;500;600;700&display=swap');

*{box-sizing:border-box}
:root{--bg:#f6f7fb;--surface:#fff;--ink:#18181b;--muted:#667085;--line:#e5e7eb;--brand:#5b3cc4;--brand-soft:#f1eeff;--dark:#211c2d}
html{-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Inter','Noto Sans Thai',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;line-height:1.78;font-weight:400;-webkit-font-smoothing:antialiased}
html:lang(th) body,body:lang(th){font-family:'Noto Sans Thai','Inter',system-ui,sans-serif;line-height:1.82}
a{color:var(--brand);text-underline-offset:4px;text-decoration-thickness:1px}a:hover{color:#4930a3}a:focus-visible,summary:focus-visible{outline:3px solid #a997ff;outline-offset:4px}.wrap{width:min(1080px,calc(100% - 36px));margin:auto}
header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line)}header .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding:16px 0}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-weight:700;letter-spacing:-.015em}.brand img{width:40px;height:40px}.brand small{display:block;margin-top:1px;color:var(--muted);font-size:11.5px;line-height:1.35;font-weight:500;letter-spacing:0}nav{display:flex;gap:17px;align-items:center;flex-wrap:wrap;font-size:14px;font-weight:500}nav a{text-decoration:none;color:#45415a}nav a:hover{color:var(--brand)}
.hero{padding:48px 0 27px}.eyebrow{display:inline-block;color:var(--brand);background:var(--brand-soft);border:1px solid #e2dcff;border-radius:999px;padding:6px 10px;font-size:11.5px;line-height:1.2;letter-spacing:.075em;font-weight:700}h1,h2{font-family:'Inter','Noto Sans Thai',system-ui,sans-serif;color:var(--ink);text-wrap:balance}html:lang(th) h1,html:lang(th) h2{font-family:'Noto Sans Thai','Inter',system-ui,sans-serif}h1{font-size:clamp(2rem,4.7vw,3.5rem);line-height:1.18;max-width:880px;letter-spacing:-.035em;font-weight:700;margin:16px 0 18px}.intro{color:var(--muted);max-width:790px;font-size:clamp(1rem,2vw,1.12rem);line-height:1.8}
.grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,.92fr);gap:24px;align-items:start}article,aside{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:0 8px 28px rgba(31,24,54,.035)}article{font-size:16px}article section+section{border-top:1px solid #eef0f4;margin-top:26px;padding-top:1px}h2{font-size:clamp(1.22rem,2.1vw,1.42rem);line-height:1.48;letter-spacing:-.018em;font-weight:700;margin:26px 0 10px}h2:first-child{margin-top:0}p{margin:0 0 18px;color:#3f4552}article p{max-width:74ch}aside{font-size:15px;line-height:1.72}aside h2{font-size:1.18rem}.button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:10px;padding:11px 18px;text-decoration:none;font-weight:600;line-height:1.35}.button:hover{background:#4e32ad;color:#fff}.notice{background:#f7f5ff;border:1px solid #e6e0ff;border-left:3px solid #8168d8;padding:14px 15px;border-radius:10px;font-size:14px;line-height:1.7;color:#55516a}
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;padding:10px 0 42px}.tile{display:block;padding:19px;border:1px solid var(--line);background:#fff;border-radius:14px;text-decoration:none;line-height:1.55;font-size:15px;font-weight:600;color:#302b42;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}.tile:hover{border-color:#cfc4fa;transform:translateY(-1px);box-shadow:0 7px 20px rgba(31,24,54,.045);color:var(--brand)}.tile small{display:block;color:#777486;margin-top:8px;font-size:12.5px;line-height:1.5;font-weight:500}
footer{border-top:1px solid var(--line);padding:26px 0;font-size:13px;line-height:1.7;color:#737989}footer p{max-width:900px;color:#737989}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;z-index:100;background:#fff;padding:10px 12px;border-radius:8px;box-shadow:0 5px 20px rgba(0,0,0,.1)}
@media(max-width:800px){.grid{grid-template-columns:1fr}.related{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding-top:34px}article,aside{padding:23px}}
@media(max-width:560px){body{font-size:15.5px;line-height:1.78}.wrap{width:min(100% - 28px,1080px)}header .wrap{padding:13px 0;gap:12px}.brand img{width:36px;height:36px}nav{width:100%;gap:8px 14px;font-size:13px}.hero{padding:28px 0 20px}h1{font-size:clamp(1.85rem,10vw,2.55rem);line-height:1.2;letter-spacing:-.025em}.intro{font-size:15.5px;line-height:1.78}.grid{gap:16px}article,aside{padding:20px;border-radius:15px;box-shadow:none}article section+section{margin-top:22px}h2{font-size:1.2rem;line-height:1.5;margin:23px 0 8px}.related{grid-template-columns:1fr;gap:10px;padding-bottom:32px}.tile{padding:17px}.button{width:100%}}