:root{color-scheme:light dark;font-family:Noto Sans Thai,system-ui,-apple-system,sans-serif;line-height:1.6}*{box-sizing:border-box}body{margin:0}.page{max-width:720px;margin:0 auto;padding:2rem 1.25rem}.hero h1{font-size:3rem;margin:0;letter-spacing:.05em}.hero p{color:#555}.promos ul{list-style:none;padding:0;display:grid;gap:.75rem}.promos li{padding:.9rem 1.1rem;border:1px solid rgba(128,128,128,.3);border-radius:12px}.muted{color:#888}