.ebook-page{--ink:#213d54;--blue:#21577d;--muted:#7d766f;--line:#d9d5cf;--paper:#f5f2ee;--paper2:#ece7e1;color:#303438}
.ebook-inner{width:min(1080px,calc(100% - 48px));margin:0 auto}
.ebook-hero{margin:46px auto 0}
.ebook-hero__panel{position:relative;overflow:hidden;padding:58px 74px 54px;min-height:300px;background:linear-gradient(90deg,var(--paper2) 0%,var(--paper) 15%,var(--paper) 85%,var(--paper2) 100%)}
.ebook-ghost{position:absolute;right:24px;top:10px;font:112px/1 Georgia,"Times New Roman",serif;color:rgba(33,61,84,.055);user-select:none}
.ebook-kicker{margin:0 0 14px;font:11px/1 Georgia,"Times New Roman",serif;letter-spacing:.2em;color:#8d867f}
.ebook-title{margin:0;font:400 52px/1.05 Georgia,"Times New Roman","Yu Mincho","Hiragino Mincho ProN",serif;color:var(--ink)}
.ebook-title-ja{display:block;margin-top:12px;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:15px;letter-spacing:.13em;color:#736e69}
.ebook-lead{position:relative;z-index:1;max-width:760px;margin:38px 0 0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:17px;line-height:1.95;color:#4c4946}
.ebook-section{padding:76px 0 0}
.ebook-heading{display:grid;grid-template-columns:auto minmax(40px,1fr);gap:18px;align-items:end;margin-bottom:30px}
.ebook-heading__en{display:block;margin-bottom:7px;font:10px Georgia,"Times New Roman",serif;letter-spacing:.18em;color:#918a84}
.ebook-heading h2{margin:0;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:29px;font-weight:400;line-height:1.15;color:var(--ink)}
.ebook-heading__rule{height:1px;margin-bottom:16px;background:var(--line)}
.ebook-intro{width:min(760px,100%);margin:0 auto 34px;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:15px;line-height:2}
.ebook-card{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ebook-row{display:grid;grid-template-columns:185px 1fr;gap:32px;padding:26px 8px;border-bottom:1px solid var(--line)}
.ebook-row:last-child{border-bottom:0}.ebook-row dt{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:14px;color:var(--ink)}.ebook-row dd{margin:0;font-size:14px;line-height:1.9}
.ebook-row ul{margin:0;padding-left:1.2em}.ebook-row li+li{margin-top:7px}
.ebook-genres{display:flex;flex-wrap:wrap;gap:8px}.ebook-genre{padding:7px 11px;border:1px solid #c4bdb5;background:#fff;font-size:12px;color:#615b55}
.ebook-merits{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ebook-merit{padding:28px;border:1px solid var(--line);background:#faf8f5}
.ebook-merit strong{display:block;margin-bottom:9px;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:18px;font-weight:400;color:var(--ink)}
.ebook-merit p{margin:0;font-size:13px;line-height:1.8}
.ebook-note{width:min(760px,100%);margin:34px auto 0;font-size:13px;line-height:1.9;color:#615c57}
.ebook-cta{margin-top:72px;padding:38px 42px;background:var(--paper);display:flex;justify-content:space-between;align-items:center;gap:32px}
.ebook-cta strong{display:block;margin-bottom:7px;font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:20px;font-weight:400;color:var(--ink)}
.ebook-cta span{display:block;font-size:13px;line-height:1.8;color:#746d67}
.ebook-cta__links{display:flex;gap:10px;flex-wrap:wrap}.ebook-cta__links a{min-width:160px;padding:13px 18px;border:1px solid #81909a;text-decoration:none;text-align:center;font-size:13px;color:var(--ink);background:#fff}
.ebook-bottom{height:90px}
@media(max-width:760px){.ebook-inner{width:calc(100% - 30px)}.ebook-hero{margin-top:26px}.ebook-hero__panel{padding:40px 28px 38px;min-height:0}.ebook-ghost{right:-24px;top:24px;font-size:62px}.ebook-title{font-size:40px}.ebook-lead{font-size:15px}.ebook-section{padding-top:60px}.ebook-row{grid-template-columns:1fr;gap:9px;padding:20px 3px}.ebook-merits{grid-template-columns:1fr}.ebook-cta{flex-direction:column;align-items:flex-start;padding:28px 24px}.ebook-cta__links{width:100%}.ebook-cta__links a{flex:1;min-width:0}}