:root{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif;color:#24361f;background:#f3efe7}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;-webkit-font-smoothing:antialiased}button{font:inherit}.prototype-shell{min-height:100vh;padding:26px;background:radial-gradient(circle at 18% 12%,rgba(255,255,255,.7),transparent 24%),linear-gradient(135deg,#e8f3e8,#f8f3ea 48%,#e9f2f8)}.book-stage{position:relative;display:grid;min-height:calc(100vh - 52px);place-items:center;overflow:hidden;border-radius:10px;background:linear-gradient(#212e1b2b,#212e1b2b),linear-gradient(115deg,#8d6a49,#5b4028 48%,#9b7650);box-shadow:inset 0 0 90px #291c116b}.book-stage:before{position:absolute;top:0;right:0;bottom:0;left:0;content:"";opacity:.18;background-image:linear-gradient(90deg,rgba(255,255,255,.2) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.18) 1px,transparent 1px);background-size:44px 44px;pointer-events:none}.book{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);width:min(1320px,calc(100vw - 76px));min-height:min(820px,calc(100vh - 108px));border:9px solid #466431;border-radius:26px 34px 34px 26px;background:#f9f3e8;box-shadow:0 32px 70px #140f0961,inset 0 0 0 2px #ffffff85}.book:before{position:absolute;top:0;bottom:0;left:50%;z-index:3;width:34px;content:"";transform:translate(-50%);background:linear-gradient(90deg,rgba(55,38,24,.22),transparent 42%,rgba(55,38,24,.18)),linear-gradient(#fbf7ec,#e1d5c3 49%,#fff8e9);box-shadow:-8px 0 18px #49342226,8px 0 18px #49342221}.book:after{position:absolute;top:14px;right:14px;bottom:14px;left:14px;content:"";border-radius:18px 24px 24px 18px;background:radial-gradient(circle at 28% 18%,rgba(255,255,255,.34),transparent 22%),linear-gradient(90deg,rgba(141,109,72,.08),transparent 17%,transparent 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18px;font-weight:750}.read-state{display:inline-flex;gap:9px;align-items:center;padding:6px;border-radius:999px;background:#fffaeedb;box-shadow:0 14px 32px #1b150d29}.read-state span{min-width:54px;color:#5b613d;font-weight:800;text-align:center}.page-arrow{position:absolute;z-index:7;display:grid;width:64px;height:64px;place-items:center;border:0;border-radius:999px;color:#5b5c51;background:#ffffffc7;box-shadow:0 14px 35px #1b150d40;cursor:pointer}.page-arrow-left{left:46px;top:72px}.page-arrow-right{right:46px;bottom:58px}.theme-fruit .category-tabs button.selected,.theme-fruit .reading-bar button.active,.theme-fruit .audio-pin{background:#d65b31}.theme-leaf .category-tabs button.selected,.theme-leaf .reading-bar button.active,.theme-leaf .audio-pin{background:#4f8f62}.theme-green .category-tabs button.selected,.theme-green .reading-bar button.active,.theme-green .audio-pin{background:#477c88}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.12)}}@media(max-width:1100px){.prototype-shell{padding:14px}.book-stage{min-height:calc(100vh - 28px)}.book{grid-template-columns:1fr;width:min(760px,calc(100vw - 28px));min-height:auto}.book:before{display:none}.left-page,.right-page{border-radius:18px}.image-wrap{min-height:520px}.right-page{padding:32px}.more-items{max-height:none;overflow:visible}.category-tabs{position:sticky;bottom:12px;max-width:calc(100vw - 28px);margin-top:18px;overflow-x:auto;transform:none}.reading-bar{position:static;justify-content:center;margin-top:14px}.page-arrow{display:none}}@media(max-width:720px){.book{border-width:6px}.right-page{gap:18px;padding:24px}.focus-card{grid-template-columns:1fr}.focus-image{width:min(280px,100%)}.item-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.title-panel{left:22px;top:26px;width:calc(100% - 44px)}.category-tabs button{min-width:106px}.reading-bar{flex-wrap:wrap}}