*{box-sizing:border-box}body{margin:0;color:#143a2d;background:#e6e9e6;font-family:Arial,Helvetica,sans-serif;height:100dvh;display:flex;flex-direction:column}button,a,input{touch-action:manipulation}button{font:inherit;cursor:pointer;color:inherit;background:#fff;border:1px solid #ccd3ce;border-radius:7px;padding:10px 14px;font-size:14px}button:hover{background:#edf1ed}button:disabled{opacity:.3;cursor:default}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #bd913f;outline-offset:3px}header{background:#143a2d;color:#fff;padding:17px 30px;display:flex;align-items:center;justify-content:space-between;border-bottom:3px solid #b49051;gap:20px}.brand{font-size:24px;font-weight:700;letter-spacing:1.4px}.brand span{display:block;font-size:11px;letter-spacing:1.8px;color:#d3bb86;margin-top:5px}nav{display:flex;gap:12px;align-items:center;font-size:14px}nav a{padding:11px 16px;border:1px solid #6a8578;border-radius:7px}.quote{background:#fbf5e8;color:#173a2d;border-color:#fbf5e8}main{display:flex;flex-direction:column;flex:1;min-height:0}.toolbar{display:flex;align-items:center;justify-content:space-between;padding:12px 25px;gap:10px;background:#f6f7f4}.tip{font-family:Georgia,serif;font-size:17px;color:#617368}.tools{display:flex;gap:8px}.viewer{flex:1;position:relative;min-height:0;display:flex}.stage{flex:1;display:flex;justify-content:center;align-items:center;gap:20px;padding:18px 25px;min-height:0;background:radial-gradient(ellipse at center,#f0f2ee,#cbd3cc)}.turn{font-size:38px;border:0;padding:0;background:transparent;width:44px;flex-shrink:0}.turn:hover{background:#ffffff70}.turn:disabled{background:none}#book{height:100%;display:flex;justify-content:center;align-items:center;min-width:0;perspective:1800px;filter:drop-shadow(0 9px 15px #263c3430)}.sheet{height:100%;max-width:100%;aspect-ratio:603/783;position:relative;background:#fff;overflow:hidden;cursor:zoom-in;display:flex;align-items:center}.sheet img{display:block;height:100%;width:100%;object-fit:contain}.sheet:nth-child(2){box-shadow:inset 6px 0 12px #0002}.sheet:nth-child(2):after{position:absolute;content:'';left:0;top:0;height:100%;width:20px;background:linear-gradient(90deg,#0002,transparent);pointer-events:none}.flipping{animation:flip .38s ease-out}@keyframes flip{from{opacity:.4;transform:rotateY(-12deg)}to{opacity:1;transform:rotateY(0)}}footer{background:#f6f7f4;padding:12px 30px;display:flex;align-items:center;gap:28px;justify-content:space-between}.pager{display:flex;gap:10px;align-items:center;font-size:14px;white-space:nowrap}.pager button{padding:6px 10px}.pager input{width:56px;padding:7px;font-size:14px;border:1px solid #c1cdc3;border-radius:5px;color:#143a2d}#slider{max-width:360px;flex:1;accent-color:#143a2d;min-width:60px}footer p{display:flex;gap:10px;font-size:13px;white-space:nowrap}aside{width:310px;max-width:85vw;background:#fff;padding:20px;overflow:auto;position:absolute;left:0;top:0;bottom:0;z-index:5;box-shadow:6px 0 25px #0002}.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:8px}h2{font-size:18px;margin:0}h3{font-size:14px;margin:25px 0 15px}#sections{display:grid;margin-top:20px;gap:5px}#sections button{text-align:left;background:#f3f5f1;border:0;font-size:14px;display:flex;justify-content:space-between}#sections button span{color:#748176}#thumbnails{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}#thumbnails button{padding:3px;border:1px solid #d4ddd5;font-size:12px}#thumbnails img{width:100%;display:block;margin-bottom:4px}#thumbnails .active{border:2px solid #b28b46}dialog{width:96vw;height:96dvh;border:0;border-radius:10px;padding:0;background:#e1e6e0;color:#143a2d}dialog::backdrop{background:#06160ecc}.zoom-top{padding:12px 20px;background:#fff;position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;z-index:1}#zoom-pages{padding:25px;display:flex;align-items:flex-start;justify-content:center;gap:8px;overflow:auto}#zoom-pages img{width: min(800px,90vw);max-width:none;box-shadow:0 5px 20px #0003}@media(max-width:1000px){footer p{display:none}.tip{display:none}.stage{gap:7px;padding:12px}.turn{width:34px}footer{gap:15px}header{padding:14px 20px}}@media(max-width:650px){header{padding:13px 15px}.brand{font-size:20px}.brand span{font-size:9px}nav .download{display:none}nav a{padding:9px 10px;font-size:12px}.toolbar{padding:9px 12px}.tools button span{display:none}button{padding:9px 11px}.stage{padding:12px 5px;gap:0}.turn{width:28px;font-size:32px}#book{max-width:calc(100vw - 66px)}footer{padding:10px 12px}.pager{gap:6px}#slider{max-width:150px}#zoom-pages{display:block;padding:12px}#zoom-pages img{width:100%;margin-bottom:12px}}@media(prefers-reduced-motion:reduce){.flipping{animation:none}}
/* Keep the catalog as the dominant reading surface. */
header{padding:9px 20px;gap:14px}.brand{font-size:21px}.brand span{margin-top:3px;font-size:10px}nav a{padding:8px 13px}.toolbar{padding:5px 20px}.toolbar button{padding:6px 11px}.tip{font-size:15px}.stage{padding:4px 12px;gap:8px}#book{flex:none;height:auto;width:auto;max-width:calc(100% - 104px)}.sheet{flex:none;max-width:none;height:100%;width:auto}.sheet img{height:100%;width:100%;object-fit:fill}footer{padding:5px 20px;gap:20px}footer p{margin:6px 0}.pager input{padding:5px}.pager button{padding:5px 9px}.turn{width:36px}@media(max-width:650px){header{padding:8px 12px}.brand{font-size:18px}.brand span{font-size:8px}nav a{padding:7px 9px}.toolbar{padding:4px 10px}.stage{padding:3px 0;gap:0}.turn{width:26px}#book{max-width:calc(100vw - 54px)}footer{padding:6px 10px;gap:10px}.pager{gap:5px}}
/* Reading size by default: use the width, scroll the enlarged pages. */
.stage{display:block;position:relative;overflow:auto;padding:4px 44px;background:#dce2dc;scrollbar-gutter:stable}#book{margin:0 auto;max-width:none;align-items:flex-start;filter:drop-shadow(0 4px 10px #263c3420)}.stage.fit-whole #book{margin-top:0}.turn{position:sticky;top:45%;z-index:2;width:32px;height:44px;border-radius:6px;background:#f6f7f4ed;box-shadow:0 2px 8px #0001}.prev{float:left;margin-left:-38px}.next{position:absolute;right:5px;top:45%}.turn:hover{background:#fff}header{padding:6px 18px}.brand span{display:none}.brand{font-size:19px}.tip{display:none}.toolbar{padding:4px 16px}footer{padding:4px 16px}.toolbar .tools{gap:5px}.toolbar button{font-size:13px;padding:5px 10px}@media(max-width:650px){.stage{padding:3px 5px}.prev{margin-left:0;position:fixed;left:5px;top:50%;float:none}.next{position:fixed;right:5px;top:50%}.turn{background:#ffffffb8;width:25px;font-size:28px}#book{max-width:none}.toolbar{padding:4px 8px}.toolbar button{padding:5px 7px;font-size:12px}.tools #full{display:none}header{padding:7px 10px}.brand{font-size:17px}footer{padding:5px 8px}}
/* Vendor-style, edge-to-edge catalog presentation. */
body{background:#fff}main{height:100dvh}.viewer{height:100%;flex:1}.stage{background:#fff;padding:8px 60px;display:flex;align-items:flex-start;justify-content:center;overflow:auto;scrollbar-gutter:auto}#book{margin:0;filter:none;flex-shrink:0}.stage.fit-whole{align-items:center;overflow:hidden}.sheet{background:#fff}.sheet:nth-child(2):after{display:none}.sheet:nth-child(2){box-shadow:none}.menu-toggle{position:fixed;right:14px;top:10px;z-index:10;background:#ffffffd9;border:0;font-size:32px;line-height:1;padding:4px 8px;box-shadow:0 1px 6px #0002;color:#143a2d}.turn{float:none;position:fixed;top:calc(50% - 32px);width:50px;height:64px;padding:0;border:0;box-shadow:none;background:transparent;font-size:70px;line-height:1;color:#143a2d;z-index:2}.prev{left:5px;margin:0}.next{right:5px}.turn:hover{background:#f1f4f0}.turn:disabled{background:transparent}aside{left:auto;right:0;position:fixed;top:0;bottom:0;z-index:20;width:350px;max-width:90vw;padding:22px;box-shadow:-5px 0 25px #0002}.menu-brand{font-weight:bold;font-size:18px;margin:24px 0 18px}.menu-brand small{font-weight:normal;font-size:13px;display:inline-block;margin-top:5px}.menu-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.menu-actions a,.menu-actions button{text-align:center;padding:10px 7px;font-size:13px;border:1px solid #cdd5ce;border-radius:6px;background:#f4f6f3}.menu-actions .quote{background:#143a2d;color:white;grid-column:1/-1}footer{display:flex;flex-wrap:wrap;padding:20px 0 0;gap:12px;background:white}footer p{display:flex;flex-wrap:wrap;white-space:normal;gap:8px;font-size:12px}footer #slider{flex-basis:100%;max-width:none}.pager{justify-content:center;width:100%}.drawer-top button{font-size:20px;border:0}#sections{margin-top:20px}@media(max-width:650px){.stage{padding:8px}.menu-toggle{right:8px;top:8px;font-size:27px}.turn{width:27px;height:40px;font-size:42px;background:#ffffff90;top:calc(50% - 20px)}.prev{left:2px}.next{right:2px}#book{max-width:none}}