:root{--fg:#2f2e2e;--green:#1a8f2a;--pink:#c64a6c;--pale:#e6e9f6;--line:#e5e5e5}
*{box-sizing:border-box}body{margin:0;font-family:'Noto Sans JP',sans-serif;font-weight:300;color:var(--fg);background:#fff;line-height:1.75}
a{color:inherit}img,video{max-width:100%;display:block}main{overflow-x:clip}
.wrap{max-width:940px;margin:0 auto;padding:0 20px}
header.top{position:sticky;top:0;z-index:10;background:#fff;border-bottom:1px solid #f2f2f2}
header.top .wrap{display:flex;align-items:center;height:76px;gap:20px}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none}
.brand .mark{width:30px;height:30px;background:var(--green);position:relative}.brand .mark:after{content:"";position:absolute;left:14px;top:6px;width:2px;height:18px;background:#fff;transform:rotate(18deg)}
.brand b{display:block;font-weight:300;font-size:22px;line-height:1;color:#777}.brand small{display:block;font-size:10px;line-height:1.4}
nav.g{margin-left:auto;display:flex;gap:6px}nav.g a{font-size:12px;text-decoration:none;padding:6px 26px;letter-spacing:.1em}nav.g a.on{color:#5b6fc0}
.hero{position:relative;min-height:320px;display:flex;align-items:center;background-size:cover;background-position:center}
.hero .wrap{position:relative;width:100%}
.hero .big{font-weight:700;font-size:72px;line-height:1.2;text-align:center;margin:0;color:var(--fg)}
.hero .sub{font-weight:700;font-size:20px;color:#fff;text-align:center;margin:6px 0 0;text-shadow:0 1px 6px rgba(0,0,0,.35)}
.band{min-height:200px;display:flex;align-items:center;background-size:cover;background-position:center}
.band h1{font-size:44px;font-weight:500;margin:0;color:var(--fg)}.band.light h1{color:#fff}
.sec{padding:40px 0}
.kit h2{font-size:24px;font-weight:700;margin:0 0 8px}
.kit .maker{font-size:15px;font-weight:500;margin:12px 0}
.kit p{font-size:15px;white-space:pre-line;margin:0 0 12px}
.kit .vid{margin:14px 0}
.kit .row{display:flex;gap:24px;flex-wrap:wrap;align-items:flex-start}
.kit .row img{flex:1 1 200px;max-width:calc(50% - 12px)}.fade{position:relative;aspect-ratio:435/405}.fade img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;opacity:0;transition:opacity 1s}.fade img.on{opacity:1}
.btn{display:inline-block;background:var(--pink);color:#fff;text-decoration:none;font-size:13px;padding:10px 26px;border:0;cursor:pointer;font-family:inherit}
.right{text-align:right}
.ce{background:var(--pale);padding:40px 0}
.ce .grid{display:grid;grid-template-columns:290px 1fr;gap:30px;align-items:start}
.ce h2{font-size:24px;font-weight:700;margin:0 0 6px}.ce p{font-size:15px;margin:0 0 16px}
.ce .certs{display:flex;gap:10px;flex-wrap:wrap}.ce .certs img{width:calc(50% - 5px)}
.lead{font-size:24px;font-weight:500;text-align:center;margin:30px 0}
.cta{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:30px 0;border-bottom:1px solid var(--line);flex-wrap:wrap}
.cta p{font-size:24px;font-weight:500;margin:0}.cta .btn{padding:14px 50px}
footer.foot{background:#efefef;font-size:12px;padding:18px 0}
.co h2{font-size:32px;font-weight:700;margin:0 0 20px}.co p{margin:0;font-size:14px}
form.contact{display:grid;gap:14px;max-width:900px;margin:20px 0}
form.contact label{display:grid;gap:4px;font-size:14px}
form.contact input,form.contact textarea{font:inherit;border:0;border-bottom:1px solid #aaa;padding:8px 2px;background:transparent}
form.contact textarea{min-height:120px;border:1px solid #aaa}
form.contact .hp{position:absolute;left:-9999px}
form.contact button{justify-self:center}
.prod h3{display:inline-block;background:#3b3b3b;color:#fff;font-weight:500;font-size:22px;padding:4px 18px;margin:0 0 10px}
.prod h2{font-size:22px;font-weight:700;margin:0 0 16px}
.prod p{font-size:15px;white-space:pre-line}
.prod .imgs{display:flex;gap:20px;flex-wrap:wrap;align-items:center;margin:14px 0}
.prod .center{max-width:740px;margin:20px auto}
@media (max-width:760px){header.top .wrap{height:auto;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}nav.g{margin:0;width:100%;justify-content:space-between}nav.g a{padding:6px 8px}
 .hero .big{font-size:40px}.hero .sub{font-size:15px}.band h1{font-size:30px}.ce .grid{grid-template-columns:1fr}.cta p,.lead{font-size:19px}}