:root{color-scheme:dark;--bg:#090713;--surface:#171129;--line:#49385f;--text:#f8f1ff;--muted:#d2c1de;--accent:#e981eb;--cyan:#8feaf2}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:var(--bg);color:var(--text);font-family:"Noto Sans Thai",Tahoma,Arial,sans-serif;line-height:1.7}::selection{background:var(--cyan);color:var(--bg)}a{color:inherit;text-underline-offset:.22em}a:focus-visible,summary:focus-visible{outline:3px solid var(--cyan);outline-offset:5px}.wrap{width:min(1120px,calc(100% - 40px));margin-inline:auto}.skip{position:absolute;left:12px;top:-80px;padding:10px 15px;background:var(--cyan);color:var(--bg);z-index:10}.skip:focus{top:12px}.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:88px;border-bottom:1px solid var(--line)}.brand{font-size:1.55rem;font-weight:900;letter-spacing:-.04em;text-decoration:none}.brand span{color:var(--accent)}nav{display:flex;gap:25px;font-size:.94rem}nav a{text-decoration:none;color:var(--muted)}nav a:hover{color:var(--text)}.hero{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(280px,.75fr);gap:clamp(36px,7vw,110px);align-items:end;padding-block:clamp(85px,12vw,170px) clamp(90px,11vw,145px)}h1,h2,p{margin-top:0}h1{font-size:clamp(3.2rem,8vw,6rem);line-height:1.13;letter-spacing:-.04em;margin-bottom:30px}h1 span{color:var(--accent)}.hero-copy>p{font-size:clamp(1.1rem,1.6vw,1.3rem);color:var(--muted);max-width:36ch}.action{display:inline-flex;align-items:center;gap:32px;margin-top:25px;padding:13px 21px;border:1px solid var(--cyan);border-radius:4px;text-decoration:none;font-weight:700;color:var(--cyan)}.action:hover{background:var(--cyan);color:var(--bg)}.hero-note{padding:29px 0 0;border-top:1px solid var(--accent)}.hero-note strong{display:block;font-size:1.4rem;margin-bottom:12px}.hero-note p{color:var(--muted);margin:0}.guide,.faq{padding-block:90px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;border-bottom:1px solid var(--line);padding-bottom:30px}.section-heading h2,.faq h2,.check h2{font-size:clamp(2rem,4vw,3.5rem);line-height:1.2;letter-spacing:-.035em;margin:0}.section-heading p{max-width:38ch;color:var(--muted);margin:0}.steps{list-style:none;padding:0;margin:0;counter-reset:step}.steps li{counter-increment:step;display:grid;grid-template-columns:76px minmax(170px,.65fr) minmax(0,1fr);gap:28px;align-items:start;padding:31px 0;border-bottom:1px solid var(--line)}.steps li:before{content:counter(step,decimal-leading-zero);font-size:1.05rem;color:var(--cyan);font-weight:700}.steps strong{font-size:1.2rem}.steps p{color:var(--muted);max-width:60ch;margin:0}.check{background:var(--surface);border-block:1px solid var(--line);padding-block:90px}.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:12%}.check p{color:var(--muted);max-width:45ch;margin:24px 0 0}.check ul{list-style:none;padding:0;margin:0}.check li{padding:18px 0;border-bottom:1px solid var(--line)}.check li:before{content:"✓";display:inline-block;width:30px;color:var(--cyan)}.faq h2{margin-bottom:35px}.faq-list{max-width:780px}.faq details{border-top:1px solid var(--line);padding:20px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-weight:700;font-size:1.1rem}.faq p{color:var(--muted);margin:12px 0 0;max-width:70ch}footer{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-block:30px 50px;color:var(--muted)}footer span{color:var(--text);font-weight:800}@media(max-width:740px){.site-header{align-items:flex-start;flex-direction:column;padding-block:18px;gap:12px}nav{flex-wrap:wrap;gap:10px 18px;font-size:.86rem}.hero{grid-template-columns:1fr;padding-block:70px 80px;gap:60px}.guide,.faq,.check{padding-block:64px}.section-heading{align-items:start;flex-direction:column}.steps li{grid-template-columns:42px 1fr;gap:8px 16px}.steps p{grid-column:2}.check-grid{grid-template-columns:1fr;gap:28px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}