:root{--ink:#1f2328;--sub:#6a737d;--line:#e6e8eb;--bg:#f7f7f5;--accent:#d6336c;--low:#1c7ed6;--card:#fff}
*{box-sizing:border-box}
body{margin:0;font-family:"Hiragino Sans","Noto Sans JP",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
.hd{background:#fff;border-bottom:1px solid var(--line)}
.hd-in{display:flex;justify-content:space-between;align-items:center;height:56px}
.logo{font-weight:800;font-size:18px;text-decoration:none}
.hd nav a{margin-left:16px;font-size:14px;text-decoration:none;color:var(--sub)}
.pr{font-size:11px;color:var(--sub);margin:0 auto;padding-bottom:6px}
.hero{padding:28px 0 8px}
.hero h1{margin:0;font-size:24px}
.hero p,.lead{color:var(--sub);margin:4px 0 0;font-size:14px}
h1{font-size:22px}
h2{font-size:18px;margin:32px 0 12px}
h2 small{font-weight:400;color:var(--sub);font-size:13px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;text-decoration:none;display:flex;flex-direction:column;transition:transform .15s}
.card:hover{transform:translateY(-2px)}
.thumb{position:relative;aspect-ratio:3/4;background:#eceae4;display:flex;align-items:center;justify-content:center;color:var(--sub);font-weight:700}
.thumb img{width:100%;height:100%;object-fit:cover}
.off{position:absolute;top:8px;left:8px;background:var(--accent);color:#fff;font-size:12px;padding:2px 6px;border-radius:4px}
.pricebox .off{position:static}
.meta{padding:8px 10px 10px}
.meta .t{margin:0;font-size:13px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.meta .p{margin:4px 0 0;font-size:14px}
.meta s{color:var(--sub);font-size:12px;margin-right:6px}
.meta strong{color:var(--accent)}
.tags{margin:4px 0 0}
.tag{display:inline-block;font-style:normal;font-size:11px;border:1px solid var(--line);border-radius:4px;padding:0 5px;margin:0 4px 2px 0;color:var(--sub)}
.tag.down{background:var(--accent);border-color:var(--accent);color:#fff}
.tag.low{background:var(--low);border-color:var(--low);color:#fff}
.more{text-align:right;font-size:14px}
.crumb{font-size:12px;color:var(--sub);margin:16px 0}
.item{display:grid;grid-template-columns:240px 1fr;gap:28px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.cover{aspect-ratio:3/4;background:#eceae4;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center;padding:12px;text-align:center;font-weight:700;color:var(--sub)}
.cover img{width:100%;height:100%;object-fit:cover}
.item h1{margin:0}
.author{color:var(--sub);margin:2px 0}
.pricebox{background:var(--bg);border-radius:10px;padding:14px 16px;margin:14px 0}
.pricebox p{margin:2px 0;font-size:14px}
.pricebox .now{font-size:26px;font-weight:800;color:var(--accent)}
.camp{color:var(--accent);font-weight:600}
.buy{display:block;text-align:center;background:var(--ink);color:#fff;text-decoration:none;font-weight:700;padding:12px;border-radius:8px;margin-top:10px}
.spark{width:100%;max-width:420px;height:70px;background:var(--bg);border-radius:6px}
.spark polyline{fill:none;stroke:var(--accent);stroke-width:2;vector-effect:non-scaling-stroke}
.hist{font-size:13px;border-collapse:collapse;margin-top:8px}
.hist td{padding:2px 16px 2px 0;border-bottom:1px solid var(--line)}
.doc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px 24px 20px;margin-top:20px}
.ft{margin-top:48px;padding:24px 0;background:#fff;border-top:1px solid var(--line);font-size:13px;color:var(--sub)}
.genres a{display:inline-block;margin:0 10px 6px 0}
.credit{font-size:11px}
@media(max-width:640px){.hd-in{height:auto;padding-top:10px;padding-bottom:6px;flex-wrap:wrap}.logo{white-space:nowrap}.hd nav a{margin:0 12px 0 0;font-size:13px;white-space:nowrap}.hd nav{width:100%}.grid{grid-template-columns:repeat(2,1fr)}.item{grid-template-columns:1fr}.cover{max-width:200px}.hero h1{font-size:20px}}