.about-intro{padding-bottom:clamp(65px,8vw,110px)}.about-intro h1{font-family:'Chakra Petch','Noto Sans Thai',sans-serif;font-size:clamp(42px,6vw,82px);line-height:1.05;margin:0}.about-copy{max-width:760px;margin-top:30px}.about-copy p{font-size:clamp(17px,1.7vw,20px);margin:0 0 18px}.about-story{border-top:2px solid var(--ink);background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:30px 30px}.about-story h2,.about-principles h2,.about-faq h2,.about-rules h2{font-size:clamp(34px,4.8vw,66px)}.about-principles{background:var(--aqua)}.principle-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:42px;border:2px solid var(--ink);border-right:0}.principle-grid article{min-height:210px;background:var(--paper);padding:19px;border-right:2px solid var(--ink)}.principle-grid article:nth-child(even){background:#f1d3b2}.principle-grid span{font:700 13px 'Chakra Petch',sans-serif;color:#bd3d2d}.principle-grid h3{font-size:24px;margin:26px 0 6px}.principle-grid p{font-size:14px;line-height:1.6;margin:0}.about-rules{color:var(--paper)}.about-rules .eyebrow{color:var(--aqua)}.rules-list{list-style:none;margin:35px 0 0;padding:0;border-top:1px solid #637273}.rules-list li{display:flex;gap:25px;align-items:center;padding:16px 0;border-bottom:1px solid #637273;font:600 clamp(18px,2vw,26px) 'Chakra Petch','Noto Sans Thai',sans-serif}.rules-list b{font-size:12px;color:var(--acid);min-width:32px}.about-faq{background:var(--paper)}.faq-list{max-width:860px;margin:35px 0}.faq-list details{border-top:2px solid var(--ink);padding:17px 0}.faq-list details:last-child{border-bottom:2px solid var(--ink)}.faq-list summary{cursor:pointer;font:700 clamp(18px,2vw,25px) 'Chakra Petch','Noto Sans Thai',sans-serif;list-style:none;padding-right:34px;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:0;font-size:28px;line-height:1;top:-3px}.faq-list details[open] summary:after{content:'−'}.faq-list p{max-width:690px;margin:15px 34px 0 0;font-size:17px}@media(max-width:760px){.principle-grid{grid-template-columns:repeat(2,1fr)}.principle-grid article{min-height:180px}.about-intro h1{font-size:45px}.about-copy p{font-size:17px}.rules-list li{gap:15px}.faq-list summary{font-size:19px}}@media(max-width:410px){.principle-grid{grid-template-columns:1fr;border-right:2px solid var(--ink)}.principle-grid article{border-right:0;border-bottom:2px solid var(--ink)}.principle-grid article:last-child{border-bottom:0}}