:root{--voicereader-primary:#0066cc;--voicereader-primary-hover:#0052a3;--voicereader-bg:#f5f5f5;--voicereader-text:#1a1a1a;--voicereader-border:#d1d1d1;--voicereader-progress-bg:#e0e0e0;--voicereader-progress-fill:var(--voicereader-primary);--voicereader-focus:#0066cc;--voicereader-error:#cc0000;--voicereader-success:#008800;--voicereader-radius:4px;--voicereader-spacing:1rem;}@media (prefers-color-scheme:dark){:root{--voicereader-primary:#66b3ff;--voicereader-primary-hover:#99ccff;--voicereader-bg:#2a2a2a;--voicereader-text:#f0f0f0;--voicereader-border:#444444;--voicereader-progress-bg:#444444;}}@media (prefers-contrast:high){:root{--voicereader-primary:#0000ff;--voicereader-bg:#ffffff;--voicereader-text:#000000;--voicereader-border:#000000;}}.voicereader-pro{background:var(--voicereader-bg);border:1px solid var(--voicereader-border);border-radius:var(--voicereader-radius);padding:var(--voicereader-spacing);font-family:system-ui,-apple-system,sans-serif;color:var(--voicereader-text);}.voicereader-controls{display:flex;align-items:center;gap:0.75rem;flex-wrap:wrap;}.voicereader-btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.5rem 1rem;background:var(--voicereader-primary);color:#ffffff;border:2px solid transparent;border-radius:var(--voicereader-radius);font-size:1rem;font-weight:500;cursor:pointer;transition:background-color 0.15s ease;min-height:44px;min-width:44px;}.voicereader-btn:hover{background:var(--voicereader-primary-hover);}.voicereader-btn:focus{outline:3px solid var(--voicereader-focus);outline-offset:2px;}.voicereader-btn:disabled{opacity:0.5;cursor:not-allowed;}.voicereader-btn--stop,.voicereader-btn--download{padding:0.5rem;}.voicereader-icon{display:block;width:20px;height:20px;position:relative;}.voicereader-icon--play::before{content:'';position:absolute;border-style:solid;border-width:10px 0 10px 16px;border-color:transparent transparent transparent currentColor;}.voicereader-icon--pause::before,.voicereader-icon--pause::after{content:'';position:absolute;width:5px;height:16px;background:currentColor;top:2px;}.voicereader-icon--pause::before{left:3px;}.voicereader-icon--pause::after{right:3px;}.voicereader-icon--stop::before{content:'';position:absolute;width:14px;height:14px;background:currentColor;top:3px;left:3px;}.voicereader-icon--download::before{content:'';position:absolute;border-style:solid;border-width:10px 8px 0 8px;border-color:currentColor transparent transparent transparent;top:8px;left:2px;}.voicereader-icon--download::after{content:'';position:absolute;width:4px;height:8px;background:currentColor;top:0;left:8px;}.voicereader-progress{flex:1;min-width:150px;height:8px;background:var(--voicereader-progress-bg);border-radius:4px;overflow:hidden;cursor:pointer;position:relative;}.voicereader-progress__bar{height:100%;background:var(--voicereader-progress-fill);width:0;transition:width 0.1s linear;}.voicereader-progress__time{display:flex;gap:0.25rem;font-size:0.875rem;margin-top:0.25rem;}.voicereader-speed{display:flex;align-items:center;gap:0.5rem;}.voicereader-speed__label{font-size:0.875rem;font-weight:500;}.voicereader-speed__select{padding:0.375rem 0.5rem;border:1px solid var(--voicereader-border);border-radius:var(--voicereader-radius);background:#ffffff;color:var(--voicereader-text);font-size:0.875rem;min-height:36px;}.voicereader-speed__select:focus{outline:3px solid var(--voicereader-focus);outline-offset:2px;}.voicereader-loading{display:flex;align-items:center;gap:0.5rem;padding:0.5rem;margin-top:0.5rem;}.voicereader-loading__spinner{width:20px;height:20px;border:2px solid var(--voicereader-border);border-top-color:var(--voicereader-primary);border-radius:50%;animation:voicereader-spin 1s linear infinite;}@keyframes voicereader-spin{to{transform:rotate(360deg);}}.voicereader-error{padding:0.5rem;margin-top:0.5rem;background:#ffe6e6;border:1px solid var(--voicereader-error);border-radius:var(--voicereader-radius);color:var(--voicereader-error);}[hidden]{display:none !important;}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}@media (prefers-reduced-motion:reduce){.voicereader-loading__spinner{animation:none;}.voicereader-btn,.voicereader-progress__bar{transition:none;}}@media print{.voicereader-pro{display:none;}}.voicereader-btn--secondary{background:transparent;color:var(--voicereader-primary);border:2px solid var(--voicereader-primary);}.voicereader-btn--secondary:hover{background:var(--voicereader-primary);color:#ffffff;}.voicereader-ai-features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--voicereader-spacing);margin-top:var(--voicereader-spacing);}.voicereader-summary{background:#f0f7ff;border:1px solid var(--voicereader-primary);border-radius:var(--voicereader-radius);padding:var(--voicereader-spacing);margin-bottom:var(--voicereader-spacing);}@media (prefers-color-scheme:dark){.voicereader-summary{background:#1a2a3a;}}.voicereader-summary__title{display:flex;align-items:center;gap:0.5rem;margin:0 0 0.75rem 0;font-size:1rem;font-weight:600;color:var(--voicereader-primary);}.voicereader-summary__content{font-size:0.9375rem;line-height:1.6;}.voicereader-summary__placeholder{color:#666;font-style:italic;}.voicereader-translate{display:flex;align-items:center;gap:0.75rem;margin-left:auto;}.voicereader-translate__header{display:flex;align-items:center;gap:0.25rem;font-size:0.875rem;}.voicereader-translate__target{font-weight:600;color:var(--voicereader-primary);}.voicereader-keywords{background:var(--voicereader-bg);border:1px solid var(--voicereader-border);border-radius:var(--voicereader-radius);padding:var(--voicereader-spacing);}.voicereader-keywords__title{display:flex;align-items:center;gap:0.5rem;margin:0 0 0.75rem 0;font-size:0.9375rem;font-weight:600;}.voicereader-keywords__list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:0.5rem;}.voicereader-keywords__list a{display:inline-block;padding:0.25rem 0.75rem;background:var(--voicereader-primary);color:#ffffff;text-decoration:none;border-radius:1rem;font-size:0.8125rem;}.voicereader-keywords__list a:hover{background:var(--voicereader-primary-hover);}.voicereader-keywords__list a:focus{outline:3px solid var(--voicereader-focus);outline-offset:2px;}.voicereader-chapters{background:var(--voicereader-bg);border:1px solid var(--voicereader-border);border-radius:var(--voicereader-radius);padding:var(--voicereader-spacing);}.voicereader-chapters__title{display:flex;align-items:center;gap:0.5rem;margin:0 0 0.75rem 0;font-size:0.9375rem;font-weight:600;}.voicereader-chapters__list{margin:0;padding:0 0 0 1.5rem;}.voicereader-chapters__list li{margin:0.375rem 0;}.voicereader-chapters__list a{color:var(--voicereader-primary);text-decoration:none;}.voicereader-chapters__list a:hover{text-decoration:underline;}.voicereader-faq{background:var(--voicereader-bg);border:1px solid var(--voicereader-border);border-radius:var(--voicereader-radius);padding:var(--voicereader-spacing);margin-top:var(--voicereader-spacing);}.voicereader-faq__title{display:flex;align-items:center;gap:0.5rem;margin:0 0 0.75rem 0;font-size:1rem;font-weight:600;}.voicereader-faq__list{margin:0;padding:0;}.voicereader-faq__list dt{font-weight:600;margin:0.75rem 0 0.25rem 0;}.voicereader-faq__list dd{margin:0 0 0.75rem 0;padding-left:1rem;border-left:3px solid var(--voicereader-primary);}.voicereader-faq__accordion details{border-bottom:1px solid var(--voicereader-border);}.voicereader-faq__accordion summary{padding:0.75rem 0;cursor:pointer;font-weight:500;}.voicereader-faq__accordion summary:focus{outline:3px solid var(--voicereader-focus);outline-offset:2px;}.voicereader-faq__accordion .qa-answer{padding:0 0 0.75rem 1.5rem;}.voicereader-faq__placeholder{color:#666;font-style:italic;}.voicereader-header{display:flex;align-items:center;gap:0.5rem;flex-wrap:wrap;margin-bottom:0.25rem;}.voicereader-header__icon{display:flex;align-items:center;color:var(--voicereader-primary);flex-shrink:0;}.voicereader-header__label{font-weight:600;flex:1;font-size:0.9375rem;}.voicereader-mode{display:flex;align-items:center;gap:0.5rem;margin-left:auto;}.voicereader-mode__label{font-size:0.8125rem;font-weight:500;white-space:nowrap;}.voicereader-mode__select{padding:0.3rem 0.6rem;border:1px solid var(--voicereader-border);border-radius:var(--voicereader-radius);background:#ffffff;color:var(--voicereader-text);font-size:0.8125rem;cursor:pointer;min-height:36px;}@media (prefers-color-scheme:dark){.voicereader-mode__select{background:#333;}}.voicereader-mode__select:focus{outline:3px solid var(--voicereader-focus);outline-offset:2px;}.voicereader-mode__active{display:inline-flex;align-items:center;gap:0.25rem;padding:0.2rem 0.6rem;background:var(--voicereader-primary);color:#ffffff;border-radius:1rem;font-size:0.75rem;font-weight:600;white-space:nowrap;}.voicereader-meta{display:flex;align-items:center;gap:0.4rem;font-size:0.7rem;opacity:0.55;}.voicereader-meta__provider::before{content:'via ';}.voicereader-btn--icon{padding:0.4rem;}