#hy-modern-shelf{--shelf-ink:#242723;--shelf-red:#b12e2c;--shelf-ease:cubic-bezier(.22,.72,.14,1);padding:clamp(68px,7vw,92px) 28px 70px;color:var(--shelf-ink);isolation:isolate}
#hy-modern-shelf *{box-sizing:border-box}
#hy-modern-shelf .shelf-heading{max-width:1200px;text-align:center;margin:auto}
#hy-modern-shelf .shelf-eyebrow{font-size:13px;letter-spacing:.16em;font-weight:700;color:var(--shelf-red);margin:0 0 18px}
#hy-modern-shelf h2{font-family:'Noto Serif TC',serif;font-weight:600;font-size:clamp(24px,2.7vw,38px);line-height:1.45;margin:0;letter-spacing:.005em;text-wrap:balance}
#hy-modern-shelf .shelf-intro{max-width:820px;margin:22px auto 0;font-size:16.5px;line-height:1.8;color:#6b6b70;text-wrap:balance}
#hy-modern-shelf .shelf-library{max-width:1240px;margin:42px auto 0;position:relative;padding:0 10px 14px}
#hy-modern-shelf .shelf-row{display:flex;align-items:flex-end;justify-content:center;gap:clamp(10px,1.3vw,18px);height:438px;position:relative;z-index:1}
#hy-modern-shelf .shelf-book{--binding:#b12e2c;--type:#fff;--height:380px;position:relative;flex:1 1 0;max-width:176px;height:var(--height);min-width:0;perspective:1800px;transition:flex-grow 920ms var(--shelf-ease),max-width 920ms var(--shelf-ease),height 820ms var(--shelf-ease),opacity 700ms ease,transform 850ms var(--shelf-ease);z-index:1}
#hy-modern-shelf .shelf-book:nth-child(2){--binding:#29483d;--height:404px}
#hy-modern-shelf .shelf-book:nth-child(3){--binding:#eeefea;--type:#343d36;--height:388px}
#hy-modern-shelf .shelf-book:nth-child(4){--binding:#fff;--type:#a12625;--height:368px}
#hy-modern-shelf .shelf-book:nth-child(5){--binding:#575e58;--height:398px}
#hy-modern-shelf .shelf-row.has-open .shelf-book{max-width:1240px}
#hy-modern-shelf .shelf-row.has-open .shelf-book.is-open{flex-grow:7.3;height:430px;z-index:4}
#hy-modern-shelf .book-spine{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;border-radius:3px 6px 5px 2px;background:linear-gradient(90deg,#ffffff13,transparent 13%,transparent 91%,#0000000f),var(--binding);color:var(--type);cursor:pointer;transform-origin:0 50%;transform:rotateY(0);box-shadow:inset 2px 0 0 #ffffff22,inset -1px 0 0 #00000015,6px 9px 20px -14px #29221c66;z-index:5;transition:transform 760ms var(--shelf-ease),opacity 340ms ease 220ms,width 920ms var(--shelf-ease);-webkit-backface-visibility:hidden;backface-visibility:hidden;touch-action:manipulation}
#hy-modern-shelf .book-spine:before{content:"";position:absolute;left:5px;right:4px;top:-5px;height:6px;border-radius:2px 3px 0 0;background:repeating-linear-gradient(0deg,#d5d4ce 0 1px,#fff 1px 2px);transform:skewX(-20deg);transform-origin:bottom;box-shadow:0 -1px 0 #ffffff99}
#hy-modern-shelf .book-spine:after{content:"";position:absolute;top:0;bottom:0;right:5px;width:1px;background:#00000010}
#hy-modern-shelf .rim-title{position:absolute;inset:34px 10px 54px;display:flex;align-items:center;justify-content:center;transition:transform 620ms var(--shelf-ease),opacity 380ms ease}
#hy-modern-shelf .rim-title .zh{writing-mode:vertical-rl;text-orientation:upright;font-family:'Noto Serif TC',serif;font-size:26px;letter-spacing:.16em;line-height:1.4;font-weight:500;white-space:nowrap}
#hy-modern-shelf .rim-title .en{writing-mode:vertical-rl;text-orientation:mixed;font-family:'Lora',Georgia,serif;font-size:19px;letter-spacing:.025em;line-height:1.4;white-space:nowrap}
#hy-modern-shelf .rim-letter{display:inline-block}
#hy-modern-shelf .rim-publisher{position:absolute;left:6px;right:6px;bottom:20px;font-size:10px;letter-spacing:.13em;opacity:.62;font-family:'Noto Serif TC',serif;font-weight:500}
#hy-modern-shelf .is-open .book-spine{width:var(--closed-width,150px);transform:rotateY(-100deg) translateX(-5px);opacity:0;pointer-events:none;transition:transform 800ms var(--shelf-ease),opacity 250ms ease 160ms,width 920ms var(--shelf-ease)}
#hy-modern-shelf .is-open .rim-title{transform:translateY(-18px);opacity:0}
#hy-modern-shelf .book-spread{position:absolute;inset:0;display:grid;grid-template-columns:39% 61%;background:#fff;border:1px solid #ddded7;border-bottom:3px solid var(--binding);border-radius:2px 6px 5px 2px;box-shadow:0 25px 35px -28px #29322888,3px 3px 0 -1px #fff,4px 4px 0 -1px #d8d9d2,6px 6px 0 -2px #fff;opacity:0;visibility:hidden;transform:scaleX(.3);transform-origin:0 50%;transition:transform 920ms var(--shelf-ease),opacity 360ms ease 100ms,visibility 900ms;pointer-events:none}
#hy-modern-shelf .is-open .book-spread{opacity:1;visibility:visible;transform:scaleX(1);pointer-events:auto}
#hy-modern-shelf .book-left{position:relative;min-width:0;overflow:hidden;background:#fff;border-left:5px solid var(--binding);transform-origin:100% 50%;transform:perspective(1200px) rotateY(148deg);backface-visibility:hidden;-webkit-backface-visibility:hidden;transition:transform 1050ms var(--shelf-ease)}
#hy-modern-shelf .is-open .book-left{transform:perspective(1200px) rotateY(0)}
#hy-modern-shelf .book-left img{display:block;width:100%;height:100%;object-fit:cover;object-position:50% 76%;mix-blend-mode:multiply;transform:scale(1.045);transition:transform 1200ms var(--shelf-ease);pointer-events:none}
#hy-modern-shelf .is-open .book-left img{transform:scale(1)}
#hy-modern-shelf .book-left:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent 82%,#2632250d 96%,#ffffff55);pointer-events:none}
#hy-modern-shelf .book-copy{position:relative;min-width:0;padding:60px 32px 34px 34px;display:flex;flex-direction:column;justify-content:center;background:linear-gradient(90deg,#26322509,transparent 15px),#fff;overflow:hidden}
#hy-modern-shelf .book-copy h3{font-family:'Noto Serif TC',serif;font-size:clamp(22px,1.85vw,28px);line-height:1.5;font-weight:500;color:var(--binding);margin:0 0 22px;opacity:0;transform:translateX(18px);transition:opacity 420ms ease 290ms,transform 650ms var(--shelf-ease) 290ms}
#hy-modern-shelf .shelf-book:nth-child(3) h3{color:#343d36}
#hy-modern-shelf .shelf-book:nth-child(4) h3{color:#a12625}
#hy-modern-shelf .book-copy p{font-size:16px;line-height:1.95;color:#626860;margin:0;opacity:0;transform:translateX(18px);transition:opacity 500ms ease 390ms,transform 750ms var(--shelf-ease) 390ms}
#hy-modern-shelf .is-open .book-copy h3,#hy-modern-shelf .is-open .book-copy p{opacity:1;transform:translateX(0)}
#hy-modern-shelf .book-close{position:absolute;right:16px;top:14px;z-index:6;display:flex;align-items:center;justify-content:center;width:32px;height:32px;border:0;border-radius:50%;background:#f5f5f1;color:#5d655d;font-size:23px;line-height:1;font-family:Arial,sans-serif;cursor:pointer;transition:background 200ms,transform 400ms var(--shelf-ease)}
#hy-modern-shelf .book-close:hover{background:#e9ece5;transform:rotate(90deg)}
#hy-modern-shelf .shelf-book:focus-within{outline:2px solid #b12e2c;outline-offset:5px;border-radius:4px}
#hy-modern-shelf .shelf-ledge{position:relative;height:10px;border-top:1px solid #9c9e9273;background:linear-gradient(#b4b7aa24,transparent);box-shadow:0 10px 18px -12px #343c2e77;margin-top:6px}
#hy-modern-shelf .shelf-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
#hy-modern-shelf .shelf-row.awaiting .shelf-book{opacity:0;transform:translateY(28px)}
#hy-modern-shelf .shelf-row.arriving .shelf-book{transition-delay:calc(var(--order) * 65ms)}
#hy-modern-shelf .shelf-row.arriving .rim-letter{animation:hy-rim-settle 720ms var(--shelf-ease) both;animation-delay:calc(var(--order) * 65ms + var(--letter) * 26ms)}
@keyframes hy-rim-settle{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1050px){
 #hy-modern-shelf .shelf-row{gap:10px}
 #hy-modern-shelf .book-spread{grid-template-columns:30% 70%}
 #hy-modern-shelf .book-copy{padding:50px 24px 28px}
 #hy-modern-shelf .book-copy h3{font-size:23px;margin-bottom:16px}
 #hy-modern-shelf .book-copy p{font-size:15px;line-height:1.85}
 #hy-modern-shelf .rim-title .zh{font-size:23px}
 #hy-modern-shelf .rim-title .en{font-size:17px}
}
@media(max-width:760px){
 #hy-modern-shelf{padding:55px 20px 54px}
 #hy-modern-shelf .shelf-intro{font-size:15px}
 #hy-modern-shelf .shelf-library{margin-top:36px;padding:0 0 10px}
 #hy-modern-shelf .shelf-row{height:285px;gap:9px;align-items:end}
 #hy-modern-shelf .shelf-book{height:250px;max-width:105px}
 #hy-modern-shelf .shelf-book:nth-child(2),#hy-modern-shelf .shelf-book:nth-child(5){height:272px}
 #hy-modern-shelf .rim-title{inset:20px 5px 38px}
 #hy-modern-shelf .rim-title .zh{font-size:21px;letter-spacing:.1em}
 #hy-modern-shelf .rim-title .en{font-size:14px}
 #hy-modern-shelf .rim-publisher{bottom:13px;font-size:9px;letter-spacing:.06em}
 #hy-modern-shelf .shelf-row.has-open{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));height:auto;gap:24px 10px}
 #hy-modern-shelf .shelf-row.has-open .shelf-book{height:212px;max-width:none;grid-row:2}
 #hy-modern-shelf .shelf-row.has-open .shelf-book.is-open{grid-column:1/-1;grid-row:1;height:auto;min-height:370px}
 #hy-modern-shelf .is-open .book-spread{position:relative;min-height:370px;transform:none}
 #hy-modern-shelf .book-copy{min-height:370px;padding:48px 28px 32px}
 #hy-modern-shelf .shelf-row.has-open .rim-title .zh{font-size:18px;letter-spacing:.06em}
 #hy-modern-shelf .shelf-row.has-open .rim-title .en{font-size:12px}
 #hy-modern-shelf .book-close{width:36px;height:36px}
}
@media(max-width:430px){
 #hy-modern-shelf{padding-left:16px;padding-right:16px}
 #hy-modern-shelf .shelf-row{gap:7px;height:258px}
 #hy-modern-shelf .shelf-book{height:233px}
 #hy-modern-shelf .shelf-book:nth-child(2),#hy-modern-shelf .shelf-book:nth-child(5){height:252px}
 #hy-modern-shelf .rim-title .zh{font-size:18px;letter-spacing:.1em}
 #hy-modern-shelf .rim-title .en{font-size:12px}
 #hy-modern-shelf .rim-publisher{font-size:8px;letter-spacing:0}
 #hy-modern-shelf .book-spread{grid-template-columns:1fr}
 #hy-modern-shelf .book-left{display:none}
 #hy-modern-shelf .book-copy{border-left:5px solid var(--binding);padding:48px 25px 32px;background:linear-gradient(90deg,#2632250d,transparent 17px),#fff}
 #hy-modern-shelf .book-copy h3{font-size:23px}
}
@media(prefers-reduced-motion:reduce){
 #hy-modern-shelf *,#hy-modern-shelf *:before,#hy-modern-shelf *:after{transition:none!important;animation:none!important}
 #hy-modern-shelf .shelf-row.awaiting .shelf-book{opacity:1;transform:none}
}