.speedreader{--sr-bg: var(--secondary);--sr-panel: var(--primary-very-low);--sr-panel-2: var(--primary-low);--sr-line: var(--primary-low);--sr-line-strong: var(--primary-300);--sr-text: var(--primary);--sr-text-dim: var(--primary-high);--sr-muted: var(--primary-medium);--sr-accent: var(--tertiary);--sr-accent-bright: var(--tertiary-high);--sr-accent-deep: var(--tertiary-800);--sr-accent-tint: var(--tertiary-very-low);--sr-accent-rgb: var(--tertiary-rgb);--sr-font-size: 2.6rem}@media(max-width: 600px){.speedreader{--sr-font-size: 1.8rem}}.speedreader{max-width:760px;margin:0 auto;padding:1.5em 1em 3em;background:var(--sr-bg);border-radius:12px;font-family:var(--font-family);color:var(--sr-text)}.speedreader .sr-topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--sr-line)}.speedreader .sr-back-link{color:var(--sr-text-dim);white-space:nowrap;transition:color .15s ease}.speedreader .sr-back-link:hover{color:var(--sr-accent)}.speedreader .sr-book-title{flex:1;text-align:center;min-width:0}.speedreader .sr-book-title .sr-editable-title{display:flex;align-items:center;justify-content:center;gap:.25em}.speedreader .sr-book-title .sr-editable-title h1{font-size:1.1rem;margin:0;color:var(--sr-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.speedreader .sr-book-title .sr-title-input{max-width:320px}.speedreader .sr-book-author{font-size:.82rem;color:var(--sr-muted)}.speedreader .sr-upload-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:20px}.speedreader .sr-upload-status{font-size:.85rem;color:var(--sr-muted)}.speedreader .sr-book-grid{display:flex;flex-direction:column;gap:12px}.speedreader .sr-book-card{display:flex;align-items:center;gap:16px;background:var(--sr-panel);border:1px solid var(--sr-line);border-radius:12px;padding:16px 18px;flex-wrap:wrap;transition:border-color .15s ease,box-shadow .15s ease}.speedreader .sr-book-card:hover{border-color:var(--sr-line-strong)}.speedreader .sr-book-info{flex:1;min-width:0}.speedreader .sr-book-info h3{margin:0 0 4px;font-size:1.05rem;color:var(--sr-text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.speedreader .sr-book-meta{font-size:.82rem;color:var(--sr-muted)}.speedreader .sr-book-actions{display:flex;gap:8px;flex:0 0 auto}.speedreader .sr-empty{text-align:center;padding:40px 16px;color:var(--sr-muted);font-style:italic}.speedreader .sr-stage{background:var(--sr-panel);border:1px solid var(--sr-line);border-radius:16px;padding:40px 20px 26px;position:relative;box-shadow:inset 0 1px 0 hsla(0,0%,100%,.03)}.speedreader .sr-guide{position:absolute;left:50%;width:1px;height:14px;background:var(--sr-line-strong);opacity:.8}.speedreader .sr-guide-top{top:14px;transform:translateX(-50%)}.speedreader .sr-guide-bottom{bottom:14px;transform:translateX(-50%)}.speedreader .sr-word-row{display:flex;align-items:baseline;justify-content:center;height:calc(var(--sr-font-size)*2)}.speedreader .sr-word-before,.speedreader .sr-word-pivot,.speedreader .sr-word-after{font-size:var(--sr-font-size);font-family:Georgia,"Times New Roman",serif;line-height:1}.speedreader .sr-word-before,.speedreader .sr-word-after{flex:1 1 0;min-width:0;font-weight:600;white-space:nowrap;overflow:hidden;color:var(--sr-text)}.speedreader .sr-word-before{text-align:right}.speedreader .sr-word-after{text-align:left}.speedreader .sr-word-pivot{flex:0 0 auto;font-weight:700;color:var(--sr-accent);text-shadow:0 0 24px rgba(var(--sr-accent-rgb), 0.45)}.speedreader .sr-meta-row{display:flex;justify-content:space-between;margin-top:18px;font-size:.85rem;color:var(--sr-muted);font-variant-numeric:tabular-nums}.speedreader .sr-fuse-wrap{margin-top:16px;padding:8px 2px}.speedreader .sr-fuse-track{position:relative;height:6px;border-radius:4px;background:var(--sr-panel-2);cursor:pointer;transition:height .12s ease}.speedreader .sr-fuse-track:hover{height:9px}.speedreader .sr-fuse-fill{position:absolute;top:0;left:0;bottom:0;border-radius:4px 0 0 4px;background:linear-gradient(90deg, var(--sr-accent-deep), var(--sr-accent) 60%, var(--sr-accent-bright))}.speedreader .sr-fuse-spark{position:absolute;top:50%;width:13px;height:13px;border-radius:50%;background:radial-gradient(circle, var(--secondary) 0%, var(--sr-accent-bright) 45%, var(--sr-accent) 75%, transparent 78%);transform:translate(-50%, -50%);box-shadow:0 0 10px 2px rgba(var(--sr-accent-rgb), 0.55)}.speedreader .sr-controls{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:26px}.speedreader .sr-btn-round{background:var(--sr-panel-2);border:1px solid var(--sr-line);color:var(--sr-text-dim);width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:border-color .15s ease,color .15s ease,transform .1s ease}.speedreader .sr-btn-round:hover{border-color:var(--sr-accent);color:var(--sr-accent)}.speedreader .sr-btn-round:active{transform:scale(0.94)}.speedreader .sr-btn-round:focus-visible{outline:2px solid var(--sr-accent);outline-offset:2px}.speedreader .sr-btn-play{width:64px;height:64px;border-radius:50%;background:radial-gradient(circle at 35% 30%, var(--sr-accent-bright), var(--sr-accent) 60%, var(--sr-accent-deep) 100%);border:none;color:var(--secondary);font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 0 rgba(var(--sr-accent-rgb), 0.5);transition:transform .12s ease,box-shadow .2s ease}.speedreader .sr-btn-play:hover{transform:scale(1.05)}.speedreader .sr-btn-play:active{transform:scale(0.96)}.speedreader .sr-btn-play:focus-visible{outline:2px solid var(--sr-accent);outline-offset:3px}.speedreader .sr-btn-play.is-playing{animation:sr-pulse 1.8s ease-out infinite}@keyframes sr-pulse{0%{box-shadow:0 0 0 0 rgba(var(--sr-accent-rgb), 0.45)}70%{box-shadow:0 0 0 12px rgba(var(--sr-accent-rgb), 0)}100%{box-shadow:0 0 0 0 rgba(var(--sr-accent-rgb), 0)}}.speedreader .sr-panel-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:26px;flex-wrap:wrap}.speedreader .sr-speed-block{display:flex;align-items:center;gap:10px;flex:1 1 220px}.speedreader .sr-speed-block label{font-size:.8rem;color:var(--sr-muted);white-space:nowrap}.speedreader .sr-speed-block input[type=range]{flex:1;accent-color:var(--sr-accent)}.speedreader .sr-speed-value{font-size:.9rem;color:var(--sr-text-dim);min-width:70px;text-align:right;font-variant-numeric:tabular-nums}.speedreader .sr-toggle-row{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--sr-muted)}.speedreader .sr-toggle-row input[type=checkbox]{accent-color:var(--sr-accent)}.speedreader .sr-size-controls{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--sr-text-dim)}.speedreader .sr-size-controls button{min-width:36px}.speedreader .sr-size-controls .sr-size-value{min-width:3.5em;text-align:center;font-variant-numeric:tabular-nums}.speedreader .sr-hint-row{margin-top:16px;text-align:center;font-size:.78rem;color:var(--sr-accent);min-height:1.2em;transition:opacity .3s ease}.speedreader .sr-key-hints{margin-top:8px;text-align:center;font-size:.78rem;color:var(--sr-muted);line-height:1.6}@media(max-width: 520px){.speedreader{padding:1em .75em 2em}.speedreader .sr-word-row{height:calc(var(--sr-font-size)*1.6)}.speedreader .sr-book-title h1{font-size:.95rem}.speedreader .sr-controls{gap:10px}.speedreader .sr-btn-play{width:56px;height:56px}}
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