:root{--bg-dark:#15110c;--bg-dark2:#1c1710;--border:#38301f;--border2:#4a3e2c;--cream:#e8d4b0;--text-dark:#3d2f23;--text-mid:#7a6040;--text-dim:#8a7555;--warm-bg:#f5ede0;--warm-bg2:#ede0cc;--tag-bg:#e8ddd0;--tag-text:#7a6040;--gold:#c08020}
*{margin:0;padding:0;box-sizing:border-box}
body{background:var(--warm-bg);color:var(--text-dark);font-family:'Noto Sans JP',sans-serif;font-weight:300;line-height:1.8}
a{color:inherit;text-decoration:none}
header{background:var(--bg-dark2);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:1.2rem 3rem}
.logo{display:flex;align-items:center;gap:.6rem}
.logo-icon{font-size:1.2rem;filter:sepia(30%)}
.logo-name{font-family:'Noto Serif JP',serif;font-size:.88rem;font-weight:400;color:var(--cream);display:block}
.logo-sub{font-size:.6rem;color:var(--text-dim);letter-spacing:.18em;display:block}
nav{display:flex;gap:1.8rem}
nav a{font-size:.75rem;color:var(--cream);opacity:.75;letter-spacing:.1em}
nav a:hover{opacity:1}
.breadcrumb{background:var(--bg-dark);padding:.7rem 3rem;font-size:.68rem;color:var(--text-dim);letter-spacing:.08em;display:flex;gap:.5rem;align-items:center;flex-wrap:wrap}
.breadcrumb span{opacity:.65}
.product-img-section{background:var(--bg-dark);padding:3rem 2rem}
.product-img-container{max-width:560px;margin:0 auto;border:1px solid var(--border);background:#120f0b}
.product-img-container img{display:block;width:100%;height:auto;aspect-ratio:1;object-fit:cover}
.product-info{padding:4rem 2rem 5rem}
.product-inner{max-width:720px;margin:0 auto}
.product-title{font-family:'Noto Serif JP',serif;font-size:clamp(1.5rem,3.5vw,2.15rem);font-weight:400;letter-spacing:.04em;line-height:1.7;margin-bottom:.5rem}
.product-subtitle{font-size:.82rem;color:var(--text-mid);letter-spacing:.08em;margin-bottom:2rem}
.product-desc{margin-bottom:2.5rem;font-size:.9rem;color:var(--text-mid);line-height:2.2}
.product-desc p{margin-bottom:.6rem}
.product-meta{display:flex;flex-direction:column;gap:.9rem;margin-bottom:2.5rem;padding:1.4rem 1.6rem;background:var(--warm-bg2);border-radius:4px}
.meta-row{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap}
.meta-label{font-size:.68rem;letter-spacing:.15em;color:var(--text-mid);min-width:80px}
.tag-pill{display:inline-block;background:var(--tag-bg);color:var(--tag-text);font-size:.68rem;letter-spacing:.08em;padding:.25rem .85rem;border-radius:20px;border:1px solid rgba(122,96,64,.2)}
.tag-featured{background:#4c3424;color:#f1dfbe;border-color:#4c3424}
.btn-wrap{display:flex;gap:1rem;flex-wrap:wrap}
.btn-amazon,.btn-rakuten,.btn-back{display:inline-flex;align-items:center;gap:.5rem;padding:.85rem 2rem;font-size:.84rem;letter-spacing:.08em;border-radius:3px;transition:opacity .2s,transform .15s}
.btn-amazon{background:var(--gold);color:#fff8ec}
.btn-rakuten{background:#8b1a1a;color:#fff0f0}
.btn-back{border:1px solid var(--border2);color:var(--text-mid)}
.btn-amazon:hover,.btn-rakuten:hover,.btn-back:hover{opacity:.85;transform:translateY(-1px)}
.share-box{margin-top:1.7rem;padding:1rem 1.1rem;background:#efe4d3;border:1px solid rgba(122,96,64,.22);border-radius:4px}
.share-title{font-size:.72rem;color:var(--text-mid);letter-spacing:.12em;margin-bottom:.7rem}
.share-buttons{display:flex;gap:.7rem;flex-wrap:wrap}
.share-button{display:inline-flex;align-items:center;justify-content:center;min-height:2.45rem;padding:.55rem 1rem;border-radius:999px;font-size:.74rem;letter-spacing:.08em;border:0}
.share-x{background:#111;color:#fff}.share-line{background:#06c755;color:#fff}.share-copy{border:1px solid rgba(122,96,64,.3);background:#fff8ec;color:var(--text-mid);cursor:pointer}
.notice{margin-top:2.6rem;padding:1rem 1.15rem;border:1px solid rgba(122,96,64,.28);border-left:4px solid var(--gold);background:#fff8ec;color:#5f4328;font-size:.76rem;line-height:1.9;border-radius:4px}
footer{background:var(--bg-dark2);border-top:1px solid var(--border);padding:2.5rem 3rem}
.footer-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-logo-name{font-family:'Noto Serif JP',serif;font-size:.85rem;color:var(--cream)}
.footer-logo-sub{font-size:.6rem;color:var(--text-dim);letter-spacing:.15em}
.footer-nav{display:flex;gap:1.5rem;flex-wrap:wrap}
.footer-nav a{font-size:.7rem;color:var(--text-dim)}
.footer-copy{width:100%;text-align:center;font-size:.62rem;color:#554535;letter-spacing:.1em;padding-top:1.5rem;margin-top:1.5rem;border-top:1px solid var(--border)}
@media(max-width:600px){header,footer{padding-left:1.5rem;padding-right:1.5rem}.breadcrumb{padding:.6rem 1.5rem}.product-img-section{padding:1.5rem 1rem}.product-info{padding:2.5rem 1.5rem 4rem}nav{gap:1rem}}