:root{--ink:#172e3c;--muted:#66727b;--line:#dce1e5;--gold:#f3c451}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--ink);font:14px/1.75 "Yu Gothic",Meiryo,sans-serif}a{color:inherit;text-underline-offset:4px}button,input{font:inherit}:focus-visible{outline:3px solid #2478ae;outline-offset:4px}.status{text-align:center;padding:6px 16px;background:#eef2f4;color:#526572;font-size:11px}header{max-width:1360px;margin:auto;padding:22px 32px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.brand{font-size:26px;font-weight:800;text-decoration:none;letter-spacing:.04em}.brand span{font-size:12px;border-left:1px solid #aeb7bd;padding-left:17px;margin-left:12px;font-weight:500}nav{display:flex;gap:30px;font-size:13px}nav a{text-decoration:none}main{max-width:1296px;margin:auto;padding:0 32px}.intro{padding:32px 0 25px}.eyebrow{font-size:12px;color:#73818b;margin:0 0 4px}.intro h1{font-size:30px;margin:0 0 8px;letter-spacing:.04em}.intro>p:last-child{margin:0;color:var(--muted);max-width:850px}.tools{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:18px 0;gap:20px}.tools h2{font-size:18px;margin:0;white-space:nowrap}.tools h2 span{font-size:12px;font-weight:400;color:var(--muted);margin-left:12px}.tools label{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted)}input{width:270px;padding:10px 13px;border:1px solid #b9c3c9;border-radius:5px;background:white;font-size:13px}#catalog{display:grid;gap:14px}.book{display:grid;grid-template-columns:160px minmax(0,1fr) 225px;gap:26px;padding:24px;border:1px solid var(--line);border-radius:6px;min-height:240px}.cover{display:flex;align-items:center;justify-content:center;background:#f5f7f8;border-radius:3px;padding:10px}.cover img{display:block;width:auto;max-width:100%;height:180px;object-fit:contain;box-shadow:2px 5px 9px #162b3b24}.volume{font-size:11px;letter-spacing:.05em;color:#587080;margin:0 0 8px}.volume span{display:inline-block;background:#eaf0f3;color:#26485d;padding:2px 8px;margin-left:7px;border-radius:3px}.book h3{font-size:20px;line-height:1.65;margin:0 0 6px}.book h3 a{text-decoration:none}.book h3 a:hover{text-decoration:underline}.book h3 span{white-space:nowrap}.theme{font-size:15px;font-weight:700;margin:0 0 8px}.author{color:#4e6878;font-size:12px;margin:0 0 15px}.description{color:var(--muted);font-size:12px;margin:0 0 14px}.tags{display:flex;gap:7px;flex-wrap:wrap}.tags span{font-size:10px;border:1px solid var(--line);border-radius:3px;padding:2px 8px;color:var(--muted)}.purchase{border-left:1px solid var(--line);padding-left:24px;align-self:stretch;display:flex;flex-direction:column;justify-content:center}.edition{font-size:12px;margin:0 0 5px;color:var(--muted)}.edition b{color:var(--ink);margin-left:6px}.price{font-size:32px;font-weight:700;line-height:1.3;margin:0 0 12px;letter-spacing:-.025em}.price>span{font-size:20px;margin-right:2px;font-weight:400}.price small{font-size:11px;font-weight:400;letter-spacing:0;margin-left:6px}.availability{font-size:11px;color:#7b6241;margin:0 0 10px}.primary{display:flex;justify-content:center;align-items:center;gap:20px;background:var(--gold);color:#32290d;border:1px solid #e4b33f;border-radius:999px;padding:10px 15px;font-size:12px;font-weight:700;text-decoration:none;line-height:1.5;min-height:40px}.primary:hover{background:#ecc04f}.primary:disabled{background:#e9edf0;border-color:#dbe0e4;color:#64727b;cursor:not-allowed}.note{font-size:10px;color:var(--muted);margin:9px 0 0}.reading{margin:38px 0 50px;border-top:1px solid var(--line);padding-top:28px}.reading h2{font-size:18px;margin:0 0 5px}.reading p{font-size:12px;color:var(--muted);margin:0 0 12px}.reading a{font-size:12px}footer{max-width:1296px;margin:32px auto 0;padding:24px 32px;display:flex;justify-content:space-between;gap:15px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.empty{padding:50px 24px;background:#f5f7f8;text-align:center}.breadcrumb{font-size:12px;color:var(--muted);padding:26px 0}.detail{display:grid;grid-template-columns:260px minmax(0,1fr) 250px;gap:34px;padding:14px 0 32px;align-items:start}.detail-cover img{width:100%;display:block;box-shadow:3px 7px 14px #172d3c20}.detail-cover p{font-size:11px;text-align:center;color:var(--muted)}.detail-copy h1{font-size:27px;line-height:1.6;margin:8px 0 10px}.detail-theme{font-size:18px;font-weight:700;margin:0 0 16px}hr{border:0;border-top:1px solid var(--line);margin:22px 0}.detail-copy h2{font-size:17px;margin:0 0 13px}.detail-copy>p:not(.volume):not(.author):not(.detail-theme){font-size:13px;line-height:2}.quote{font-weight:700}.detail>.purchase{padding:23px;border:1px solid #c9d2d8;border-radius:7px;background:#fafbfc;align-self:start}.detail .price{font-size:36px;margin-top:12px}.guide-link{font-size:12px;margin-top:22px}.specs{display:grid;grid-template-columns:repeat(4,1fr);margin:28px 0 18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0;gap:8px;text-align:center}.specs dt{font-size:10px;color:var(--muted)}.specs dd{margin:5px 0 0;font-size:12px;font-weight:700}details{font-size:12px;padding:12px 0}summary{cursor:pointer}.volume-nav{display:flex;justify-content:space-between;align-items:center;gap:15px;border-top:1px solid var(--line);padding:26px 0;font-size:12px}.volume-nav>*{flex:1}.volume-nav>*:nth-child(2){text-align:center}.volume-nav>*:last-child{text-align:right}
@media(max-width:1000px){.book{grid-template-columns:130px minmax(0,1fr) 190px;gap:20px;padding:20px}.cover img{height:165px}.book h3{font-size:18px}.purchase{padding-left:18px}.detail{grid-template-columns:210px minmax(0,1fr);gap:26px}.detail>.purchase{grid-column:2}.detail-cover{grid-row:1/span 2}.detail-copy h1{font-size:24px}}
@media(max-width:650px){header{padding:16px 18px;flex-wrap:wrap;gap:14px}.brand{font-size:22px}.brand span{font-size:11px}nav{gap:24px;font-size:12px}main{padding:0 16px}.intro{padding:24px 0 20px}.intro h1{font-size:26px}.intro>p:last-child{font-size:12px}.tools{align-items:stretch;flex-direction:column;gap:12px;padding:16px 0}.tools label{font-size:11px}input{flex:1;min-width:0;width:100%}.book{grid-template-columns:92px minmax(0,1fr);gap:12px 16px;padding:16px;min-height:0}.cover{padding:0;background:transparent;align-items:flex-start}.cover img{height:auto;width:92px;max-height:150px;object-fit:contain}.book h3{font-size:16px;line-height:1.6}.theme{font-size:12px}.volume{font-size:10px;margin-bottom:6px}.volume span{margin-left:3px;padding:1px 5px}.author{margin-bottom:10px}.description{display:none}.tags{gap:5px}.tags span{font-size:9px;padding:1px 5px}.book>.purchase{grid-column:1/-1;border-left:0;border-top:1px solid var(--line);padding:13px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:2px 12px;align-items:center}.book .edition{grid-column:1;font-size:10px;margin:0}.book .price{grid-column:1;grid-row:2;margin:0;font-size:26px}.book .availability{grid-column:2;grid-row:1;text-align:center;font-size:10px;margin:0}.book .primary{grid-column:2;grid-row:2;font-size:11px;padding:9px 10px;gap:12px}.book .note{grid-column:1/-1;margin-top:5px;font-size:9px}.reading{margin:26px 0 35px}.reading h2{font-size:17px}footer{padding:20px 16px;flex-direction:column;font-size:10px}.breadcrumb{padding:19px 0;font-size:11px}.detail{grid-template-columns:1fr;gap:22px;padding-top:5px}.detail-cover{grid-row:auto;max-width:220px;margin:auto}.detail>.purchase{grid-column:auto;grid-row:3}.detail-copy h1{font-size:24px}.detail-theme{font-size:17px}.detail-copy .specs{margin-top:20px}.volume-nav{font-size:11px;gap:8px}}