.tb-product{--gold:#a17a27;--ink:#252820;max-width:1080px;margin:0 auto;color:var(--ink);font-family:"Noto Sans JP","Yu Gothic",sans-serif;font-size:16px;line-height:1.9;background:#fff}.tb-product *{box-sizing:border-box}.tb-product img{display:block;width:100%;height:auto}.tb-product .tb-hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;background:#f8f6ef;padding:40px;gap:32px}.tb-product .tb-eyebrow{font-size:13px;letter-spacing:.18em;color:var(--gold);font-weight:700}.tb-product h2{font-size:clamp(30px,4vw,48px);line-height:1.45;margin:16px 0 24px;letter-spacing:.04em}.tb-product h3{font-size:26px;line-height:1.5;margin:0 0 20px}.tb-product p{margin:0 0 20px}.tb-product .tb-tag{display:inline-block;border:1px solid #ad8b46;padding:3px 12px;font-size:13px;margin:0 6px 10px 0}.tb-product .tb-notice{border-left:3px solid var(--gold);padding:12px 16px;background:#fff;font-size:14px}.tb-product .tb-section{padding:60px 40px;border-bottom:1px solid #e7e5dc}.tb-product .tb-heading{font-size:12px;letter-spacing:.16em;color:var(--gold);margin-bottom:12px}.tb-product .tb-split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.tb-product .tb-features{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.tb-product .tb-feature{border-top:2px solid var(--gold);padding-top:20px}.tb-product .tb-feature h3{font-size:20px}.tb-product .tb-feature p{font-size:15px}.tb-product .tb-spec{width:100%;border-collapse:collapse;font-size:15px}.tb-product .tb-spec th,.tb-product .tb-spec td{padding:16px 20px;border-bottom:1px solid #e7e5dc;text-align:left;vertical-align:top}.tb-product .tb-spec th{width:30%;background:#f8f6ef;font-weight:500}.tb-product .tb-gallery{display:grid;grid-template-columns:1fr 1fr;gap:24px}.tb-product figure{margin:0}.tb-product figcaption{font-size:13px;text-align:center;margin-top:10px;color:#666}.tb-product .tb-caution{background:#f8f6ef}.tb-product .tb-caution li{margin-bottom:12px}.tb-product .tb-caution ul{padding-left:1.5em}.tb-product .tb-detail-note{font-size:13px;color:#666}@media(max-width:680px){.tb-product .tb-hero,.tb-product .tb-split,.tb-product .tb-features{grid-template-columns:1fr}.tb-product .tb-hero{padding:28px 20px;gap:20px}.tb-product .tb-hero figure{order:-1}.tb-product .tb-section{padding:36px 20px}.tb-product h2{font-size:32px}.tb-product h3{font-size:23px}.tb-product .tb-split{gap:24px}.tb-product .tb-spec th,.tb-product .tb-spec td{padding:12px 10px}.tb-product .tb-spec th{width:33%}.tb-product .tb-gallery{gap:12px}}