:root{--ink:#273e35;--green:#386650;--muted:#7c877d;--bg:#f7f4ec}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-rounded,"PingFang SC","Microsoft YaHei",sans-serif}button,input,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;color:inherit;border:1px solid #d8dfd4;background:#fff9;border-radius:14px;padding:12px 19px;min-height:46px}button:hover{background:#e6eddf}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #e8aa49;outline-offset:4px}header{height:88px;max-width:1360px;margin:auto;display:flex;align-items:center;gap:25px;padding:0 48px;border-bottom:1px solid #e1e4d8}header a{text-decoration:none;color:var(--ink);font-size:23px;font-weight:700}.logo{background:var(--green);color:#fff;border-radius:10px;padding:4px 8px;margin-right:9px}.subtitle{color:var(--muted);font-size:13px;letter-spacing:2px}header button{margin-left:auto;background:transparent}#library{max-width:1264px;margin:auto;padding:0 24px}.intro{display:flex;align-items:center;justify-content:space-between;padding:64px 48px 54px;gap:20px}.eyebrow{font-size:11px;letter-spacing:3px;color:#7d8a75}h1{font-size:48px;line-height:1.5;letter-spacing:2px;font-weight:650;margin:19px 0}.intro h1 span{color:#d68d48}.intro p{color:var(--muted);font-size:16px;letter-spacing:1px}.drawing{position:relative;width:280px;height:235px;flex-shrink:0}.book{position:absolute;left:35px;top:65px;transform:rotate(-9deg);width:185px;height:152px;background:#e4aa68;border-radius:7px 20px 20px 7px;box-shadow:8px 8px 0 #f5e7c9,12px 12px 0 #62816a;padding:35px 22px;border-left:10px solid #c78b50;color:#fff9e9;font-size:22px;line-height:1.6}.book small{font-size:14px}.sun{position:absolute;right:12px;top:0;color:#dcaa49;font-size:70px}.leaf{position:absolute;right:0;bottom:-10px;color:#7b9472;font-size:95px;transform:rotate(-25deg)}.shelf{padding:28px 32px 40px;background:#fffaf2;border:1px solid #e8e5d9;border-radius:24px}.shelf-top{display:flex;justify-content:space-between;align-items:center;gap:20px}h2{font-size:22px;margin:0}h2 span{font-size:12px;color:var(--muted);font-weight:400;margin-left:10px}.search{background:#f1f0e8;border-radius:12px;padding:10px 15px;display:flex;gap:10px;align-items:center}.search input{border:0;background:none;width:155px;font:inherit;font-size:14px;outline:none}nav{display:flex;gap:8px;margin:25px 0 30px;flex-wrap:wrap}nav button{font-size:13px;border:0;background:transparent;padding:9px 17px;min-height:40px}nav button.active{background:var(--green);color:#fff}.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px 26px}.card{border:0;padding:0;background:none;text-align:left;border-radius:8px;min-width:0}.card:hover{background:none;transform:translateY(-4px)}.cover{height:205px;background:#eee9dd;border-radius:13px;display:flex;align-items:center;justify-content:center;padding:13px;position:relative;overflow:hidden}.cover img{max-width:100%;max-height:100%;object-fit:contain;box-shadow:0 7px 12px #263e3520}.badge{position:absolute;right:8px;bottom:8px;background:#fffE;padding:5px 9px;border-radius:7px;font-size:11px}.card h3{font-size:16px;line-height:1.5;margin:13px 0 5px;font-weight:600}.card p{font-size:12px;color:var(--muted);margin:0}footer{text-align:center;color:#929b8b;font-size:12px;padding:35px}#reader{max-width:1500px;margin:auto;padding:16px 24px}.reader-top{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px}.reader-top>div{text-align:center}.reader-top h1{font-size:20px;letter-spacing:0;line-height:1.4;margin:0 0 5px}.reader-top span{font-size:12px;color:var(--muted)}.stage{height:calc(100dvh - 270px);min-height:300px;display:flex;justify-content:center;align-items:center;background:#eaece3;border-radius:18px;overflow:auto;padding:12px}.paper{position:relative;max-width:100%;max-height:100%;display:inline-flex;touch-action:pan-y;user-select:none}.paper img{display:block;max-width:100%;max-height:calc(100dvh - 294px);object-fit:contain;box-shadow:0 4px 20px #0001}.paper.pointing{touch-action:none;cursor:crosshair}#dot{display:none;position:absolute;width:38px;height:38px;border:3px solid #ef983c;border-radius:50%;background:#ffcf553a;transform:translate(-50%,-50%);pointer-events:none;box-shadow:0 0 0 5px #fff8}.stage.zoomed{display:block}.zoomed .paper{max-width:none;max-height:none}.zoomed img{max-width:none;max-height:none;width:1400px}.controls{display:flex;align-items:center;justify-content:center;gap:18px;margin:16px auto 0;max-width:900px}.controls button{white-space:nowrap}.controls input{flex:1;min-width:50px;accent-color:var(--green)}button:disabled{opacity:.35;cursor:default}.hint{text-align:center;font-size:12px;color:var(--muted)}[hidden]{display:none!important}@media(min-width:1500px){.grid{grid-template-columns:repeat(5,minmax(0,1fr))}}@media(max-width:850px){header{padding:0 24px;height:74px}.intro{padding:40px 12px}.intro h1{font-size:36px}.drawing{transform:scale(.8);width:230px}.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px 18px}.shelf{padding:24px}.cover{height:175px}.subtitle{display:none}}@media(max-width:570px){header{padding:0 17px}header a{font-size:20px}header button span{display:none}#library{padding:0 15px}.intro{padding:34px 9px}.intro h1{font-size:30px}.eyebrow{font-size:8px;letter-spacing:1px}.intro p{font-size:12px}.drawing{display:none}.shelf{padding:20px 16px}.shelf-top{align-items:flex-start;flex-direction:column;gap:15px}.search{width:100%}.search input{width:100%}.grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 14px}.cover{height:155px}.card h3{font-size:14px}nav{gap:4px}nav button{padding:8px 11px}#reader{padding:12px 10px}.reader-top button{padding:9px 10px;font-size:13px}.reader-top h1{font-size:15px}.controls{gap:8px}.controls button{padding:10px;font-size:13px}.controls button span{display:none}.hint{font-size:10px}.stage{height:calc(100dvh - 250px)}.paper img{max-height:calc(100dvh - 274px)}}
.stage.zoomed .paper img{max-width:none;max-height:none;width:1400px}