@charset "UTF-8";
/* 書籍案内（カード一覧）page-bookinfo2.php - className : bi- （2026-10-22・2026-10-26 文字サイズとコントラスト調整） */
.bi{max-width:1000px;margin:0 auto;padding:0 20px;text-align:left}
.bi *{box-sizing:border-box}
.bi-lead{margin:0 0 18px;line-height:1.9;color:#333}
.bi-lead a{color:#0b3a6b;text-decoration:underline}
.bi-filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px}
.bi-chip{appearance:none;-webkit-appearance:none;border:1px solid #c9d3de;border-radius:999px;background:#fff;color:#0b3a6b;font:inherit;font-size:14px;font-weight:700;padding:7px 14px;cursor:pointer;line-height:1.3}
.bi-chip small{margin-left:5px;font-size:12px;font-weight:400;color:#5a6b79}
.bi-chip:hover{background:#eef3f8}
.bi-chip[aria-pressed="true"]{background:#0b3a6b;border-color:#0b3a6b;color:#fff}
.bi-chip[aria-pressed="true"] small{color:#cfe0f0}
.bi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px 20px}
.bi-card{display:flex;flex-direction:column;gap:10px;min-width:0}
.bi-card[hidden]{display:none !important}
.bi-cover{position:relative;display:block;aspect-ratio:3/4;background:#f3f5f8;border:1px solid #e1e6ec;border-radius:6px;overflow:hidden}
.bi-cover img{width:100%;height:100%;object-fit:contain;display:block;transition:transform .2s}
.bi-cover:hover img{transform:scale(1.03)}
.bi-new{position:absolute;left:8px;top:8px;padding:2px 9px;border-radius:999px;background:#c9302c;color:#fff;font-size:12px;font-weight:700}
.bi-body{display:flex;flex-direction:column;gap:4px;flex:1}
.bi-title{margin:0;font-size:15px;font-weight:700;line-height:1.5}
.bi-title a{color:#0b3a6b;text-decoration:none}
.bi-title a:hover{text-decoration:underline}
.bi-author{margin:0;font-size:13px;color:#444;line-height:1.5}
.bi-meta{margin:0;font-size:13px;color:#5a6b79;line-height:1.5}
.bi-meta span{display:block}
.bi-price{margin:2px 0 0;font-size:16px;font-weight:700;color:#333}
.bi-price small{font-size:12px;font-weight:400;color:#5a6b79}
.bi-btn{margin-top:auto;display:block;text-align:center;padding:8px 10px;border-radius:999px;background:#0d4270;color:#fff !important;font-size:13px;font-weight:700;text-decoration:none !important}
.bi-btn:hover{background:#0a3357}
.bi-empty{margin:20px 0;padding:18px;border-radius:8px;background:#f3f5f8;text-align:center;color:#555}
@media screen and (max-width:1023px){.bi-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media screen and (max-width:767px){
.bi{padding:0 12px}
.bi-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 12px}
.bi-chip{font-size:13px;padding:6px 11px}
.bi-title{font-size:14px}
}