:root{color-scheme:light;--bg:#f7f7f1;--surface:#fffefa;--ink:#1a342e;--muted:#6d7970;--accent:#164d43;--accent2:#c59a70;--border:#dfe6dd;--readerSize:19px;--readerFont:Georgia,serif;--lineHeight:1.8;--shadow:0 14px 48px #143a2911}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,'Segoe UI',sans-serif}body.dark{color-scheme:dark;--bg:#0c201e;--surface:#142c29;--ink:#e8efe7;--muted:#acbcb3;--accent:#c3b89a;--accent2:#e0ad82;--border:#35504a;--shadow:none}body.sepia{--bg:#f2e8d7;--surface:#faf1e3;--ink:#49372b;--muted:#786e61;--accent:#735c45;--accent2:#a17753;--border:#decfba}button,select,input{font:inherit}button{cursor:pointer}button:disabled{opacity:.36;cursor:default}button:focus-visible,select:focus-visible,label.btn:focus-visible{outline:3px solid var(--accent2);outline-offset:3px}header.top{max-width:1320px;margin:auto;padding:20px 28px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:12px}.brand-icon{border-radius:12px;padding:12px 17px;background:var(--accent);color:var(--surface);font-size:24px}.brand strong{font-size:13px;letter-spacing:.17em}.brand strong span{color:var(--accent2)}.brand small{display:block;font-size:10px;letter-spacing:.16em;color:var(--muted);margin-top:5px}.quiet{border:1px solid var(--border);background:transparent;color:var(--ink);padding:10px 13px;border-radius:10px}.quiet:hover,.btn.secondary:hover{background:var(--border)}main{max-width:1320px;margin:auto;padding:30px 28px}.hero{padding:clamp(35px,7vw,92px);border-radius:22px;background:linear-gradient(115deg,#133d35,#305a4d 72%,#68796d);color:#fbfaf2;min-height:410px}.eyebrow{font-size:11px;letter-spacing:.2em;font-weight:800;color:var(--accent2)}.hero h1{font-family:Georgia,serif;font-size:clamp(38px,5.4vw,73px);line-height:1.12;letter-spacing:-.035em;font-weight:500;margin:24px 0}.hero h1 em{color:#e2c4a5}.hero p{max-width:610px;font-size:16px;line-height:1.8;color:#e1e9df}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{border-radius:10px;padding:12px 17px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border:1px solid var(--border);font-weight:700;font-size:14px;color:var(--ink);background:transparent}.btn.primary{border-color:var(--accent2);background:var(--accent2);color:#1e2822}.btn.primary:hover{filter:brightness(1.06)}.hero .btn.secondary{color:#fff;border-color:#c1d1ca}.micro{font-size:12px!important;opacity:.82}.sectionbar{display:flex;align-items:end;justify-content:space-between;margin:45px 0 20px}.sectionbar h2{font:500 34px Georgia,serif;margin:10px 0 0}.count{color:var(--muted);font-size:13px}.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px}.book-card{background:var(--surface);border:1px solid var(--border);border-radius:15px;overflow:hidden;box-shadow:var(--shadow)}.book-cover{height:170px;padding:20px;background:linear-gradient(135deg,#245349,#867764);color:#fff9ef;display:flex;flex-direction:column;justify-content:space-between}.book-cover span{font:600 10px system-ui;letter-spacing:.16em}.book-cover strong{font:24px/1.12 Georgia,serif;overflow-wrap:anywhere}.book-info{padding:17px}.book-info small{color:var(--muted);font-size:12px}.book-info button{width:100%;margin-top:14px}.empty{text-align:center;border:1px dashed var(--border);border-radius:16px;padding:50px 15px;color:var(--muted)}.empty h3{color:var(--ink)}.empty-icon{font-size:42px}.reader-head{display:flex;align-items:center;gap:20px;margin-bottom:22px}.reader-identity{flex:1;min-width:0}.reader-identity strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reader-identity small{color:var(--muted)}.danger{color:#bc675a}.reader-layout{display:grid;grid-template-columns:210px minmax(0,1fr) 258px;align-items:start;gap:18px}.sidebar,.voice-panel{background:var(--surface);border-radius:15px;border:1px solid var(--border);padding:18px;position:sticky;top:14px;max-height:calc(100vh - 28px);overflow:auto}.sidebar h3,.voice-panel h3{font:500 24px Georgia,serif;margin:3px 0 18px}.toc{max-height:250px;overflow:auto}.toc button{display:block;text-align:left;border:0;border-radius:8px;padding:10px;color:var(--ink);background:transparent;width:100%;line-height:1.4;font-size:13px}.toc button.active{background:var(--border);font-weight:700}.read-settings{border-top:1px solid var(--border);margin-top:22px;padding-top:18px}.stepper{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin-bottom:15px}.stepper button{padding:6px 8px;border:1px solid var(--border);background:var(--bg);color:var(--ink);border-radius:7px}.setting{display:flex;flex-direction:column;gap:7px;margin-bottom:17px;font-size:13px}.setting>span{display:flex;justify-content:space-between}.setting select{width:100%;border:1px solid var(--border);padding:10px;color:var(--ink);background:var(--bg);border-radius:8px;min-width:0}.setting input{accent-color:var(--accent);width:100%}.reader-main{min-width:0}.chapter-bar{display:flex;justify-content:space-between;align-items:center;gap:5px;color:var(--muted);font-size:12px;margin-bottom:12px}.chapter-bar .quiet{border:0}.chapter-bar.bottom{margin-top:14px}#readingPage{background:var(--surface);border:1px solid var(--border);padding:clamp(24px,5vw,68px);border-radius:15px;font:var(--readerSize)/var(--lineHeight) var(--readerFont);overflow-wrap:anywhere;min-height:460px}#readingPage h1,#readingPage h2,#readingPage h3{font-family:var(--readerFont);line-height:1.35}#readingPage p{text-indent:1em;margin:0 0 .75em}#readingPage img{max-width:100%;height:auto}#readingPage blockquote{border-left:3px solid var(--accent2);padding-left:15px;margin-left:0}.small,.tips{font-size:12px;line-height:1.55;color:var(--muted)}.player{display:grid;grid-template-columns:1fr 1fr;gap:8px}.player #play{grid-column:1/-1}.speech-status{padding:10px;border-radius:8px;background:var(--bg);border:1px solid var(--border);font-size:12px;line-height:1.5;margin:15px 0}.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#1d3932;color:white;border-radius:10px;padding:13px 20px;box-shadow:var(--shadow);max-width:90%;display:none;z-index:9}footer{max-width:1320px;margin:40px auto 0;border-top:1px solid var(--border);padding:25px 28px;color:var(--muted);font-size:12px;display:flex;justify-content:space-between}footer span{float:right}[hidden]{display:none!important}@media(max-width:1050px){.reader-layout{grid-template-columns:180px minmax(0,1fr)}.voice-panel{grid-column:1/-1;position:static;max-height:none;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.voice-panel .eyebrow,.voice-panel h3,.voice-panel .small,.voice-panel .player,.voice-panel .speech-status,.voice-panel .tips{grid-column:1/-1}.voice-panel .setting{margin:0}}@media(max-width:700px){header.top,main{padding:14px}.brand strong{font-size:11px}.top-actions button{padding:7px}.hero{border-radius:14px;padding:38px 24px;min-height:0}.hero p{font-size:14px}.reader-layout{display:block}.sidebar,.voice-panel{position:static;max-height:none;margin-bottom:14px}.toc{max-height:150px}#readingPage{padding:22px}.reader-head{gap:8px;flex-wrap:wrap}.reader-head .reader-identity{order:3;flex-basis:100%}.voice-panel{display:block}.voice-panel .setting{margin-bottom:15px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.book-cover{height:150px;padding:14px}.book-cover strong{font-size:19px}.book-info{padding:12px}.book-info .btn{padding:9px}footer{display:block}.chapter-bar.bottom .btn{font-size:12px;padding:10px}}