:root{--canvas:#f6f4ef;--surface:#fff;--ink:#22302a;--muted:#6b7670;--muted-on-canvas:#66716b;--secondary:#4c5953;--accent:#2c6a4d;--accent-hover:#1f4f39;--accent-fill:#2c6a4d;--accent-fill-hover:#1f4f39;--line:#e4dfd4;--check-line:#b3ac9f;--unknown-outline:#cfc8ba;--control-hover:#f1eee7;--subtle-surface:#fafaf7;--selected-surface:#f0f4f1;--cover-surface:#efebe3;--unknown-surface:#faf8f4;--placeholder-icon:#7a847e;--scrollbar:#b3b9ae;--selection-ink:#163b28;--selection-surface:#dce6d5;--notice-surface:#e8eee3;--notice-ink:#244c36;--warning:#90432d;--warning-badge:#b0482b;--drop-overlay:#f6f4eff2;--book-sage:#e8eee6;--book-sage-ink:#3f6b55;--book-sand:#f2ebdd;--book-sand-ink:#8a6a3a;--book-blue:#e5ecf1;--book-blue-ink:#3f5f78;--book-rose:#f1e6e3;--book-rose-ink:#8a4f42;--book-lilac:#ece8f0;--book-lilac-ink:#5e5276;--radius:18px;--elevation:0 1px 2px #22302a0f, 0 10px 30px #22302a1a;--popover-elevation:0 1px 2px #22302a14, 0 12px 32px #22302a29;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}:root[data-theme=dark]{--canvas:#151a17;--surface:#1f2622;--ink:#e6ebe7;--muted:#9ea9a2;--muted-on-canvas:#9ea9a2;--secondary:#b8c2bc;--accent:#7cc4a0;--accent-hover:#a3d8bb;--accent-fill:#2c6a4d;--accent-fill-hover:#3b7c5d;--line:#333d37;--check-line:#5c6760;--unknown-outline:#46514a;--control-hover:#28302b;--subtle-surface:#252d28;--selected-surface:#26352d;--cover-surface:#29312c;--unknown-surface:#1a201d;--placeholder-icon:#8e9a93;--scrollbar:#5c6760;--selection-ink:#e6ebe7;--selection-surface:#2c493a;--notice-surface:#26352d;--notice-ink:#b3dec6;--warning:#e0a18a;--warning-badge:#b0482b;--drop-overlay:#151a17f2;--book-sage:#24312a;--book-sage-ink:#9cc7ae;--book-sand:#332c21;--book-sand-ink:#d2b47e;--book-blue:#222d35;--book-blue-ink:#9dbad2;--book-rose:#352826;--book-rose-ink:#d5a193;--book-lilac:#2c2834;--book-lilac-ink:#b9aed0;--elevation:0 1px 2px #0000004d, 0 10px 30px #00000059;--popover-elevation:0 1px 2px #00000059, 0 12px 32px #00000073;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box}html{background:var(--canvas);scrollbar-color:var(--scrollbar) var(--canvas);scrollbar-gutter:stable}@supports not (scrollbar-gutter:stable){html{overflow-y:scroll}}body{color:var(--ink);margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.6}button,input{font:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent}button:disabled{cursor:default}a{color:var(--accent);text-underline-offset:2px}a:hover{color:var(--accent-hover)}button,a,input{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:3px}input{caret-color:var(--accent)}input::placeholder{color:var(--muted-on-canvas);opacity:1}::selection{color:var(--selection-ink);background:var(--selection-surface)}svg{flex:none}.container{width:100%;max-width:968px;margin:0 auto;padding-left:24px;padding-right:24px}.desktop-app{min-height:100vh}.desktop-header{justify-content:space-between;align-items:center;gap:12px;padding-top:28px;display:flex}.brand{white-space:nowrap;align-items:center;gap:10px;min-width:0;font-size:15px;font-weight:600;display:flex}.brand-icon{background:var(--accent-fill);color:#fff;border-radius:9px;flex:none;justify-content:center;align-items:center;width:28px;height:28px;display:flex}.preferences{border:1px solid var(--line);background:var(--surface);border-radius:999px;flex:none;align-items:center;gap:2px;padding:2px;display:flex}.preferences button{color:var(--ink);background:0 0;border:0;border-radius:999px}.preferences button:hover{background:var(--control-hover)}.language-toggle{white-space:nowrap;align-items:center;gap:6px;min-height:40px;padding:0 12px 0 10px;font-size:13px;font-weight:600;display:flex}.language-toggle>svg{color:var(--muted-on-canvas)}.preferences-divider{background:var(--line);width:1px;height:16px}.theme-toggle{justify-content:center;align-items:center;width:40px;height:40px;padding:0;display:flex}.desktop-main{flex-direction:column;gap:20px;padding-top:48px;display:flex}.page-heading{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:16px;display:flex}.page-heading h1{margin:0;font-size:30px;font-weight:600;line-height:1.3}.page-heading p{color:var(--muted-on-canvas);margin:4px 0 0;font-size:14px}.text-button{min-height:44px;color:var(--accent);background:0 0;border:0;padding:0 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0;border:0;flex-direction:column;gap:8px;padding:0;display:flex}.book-row:focus-visible{outline-offset:4px;border-radius:14px}.book-cover{aspect-ratio:1;background:var(--cover-surface);border-radius:14px;width:100%;display:block;position:relative;overflow:hidden}.book-cover-image{object-fit:cover;width:100%;height:100%;display:block;position:absolute;inset:0}.book-cover-fallback,.book-cover-unknown{justify-content:center;align-items:center;display:flex;position:absolute;inset:0}.book-cover-fallback{background:var(--book-sage);color:var(--book-sage-ink)}.book-cover-fallback>svg{opacity:.55}.book-cover-fallback--1{background:var(--book-sand);color:var(--book-sand-ink)}.book-cover-fallback--2{background:var(--book-blue);color:var(--book-blue-ink)}.book-cover-fallback--3{background:var(--book-rose);color:var(--book-rose-ink)}.book-cover-fallback--4{background:var(--book-lilac);color:var(--book-lilac-ink)}.book-cover-unknown{border:1.5px dashed 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