*{margin:0;padding:0;box-sizing:border-box}:root{--bg-dark: #1a1a2e;--bg-sidebar: #16213e;--bg-card: #0f3460;--bg-main: #f0f2f5;--accent: #e94560;--accent-hover: #c73e54;--text-light: #eee;--text-muted: #aaa;--text-dark: #222;--success: #2ecc71;--warning: #f39c12;--danger: #e74c3c;--border: #ddd;--radius: 8px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-main);color:var(--text-dark)}.app{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-sidebar);color:var(--text-light);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0}.sidebar-header{padding:20px 20px 16px;border-bottom:1px solid rgba(255,255,255,.1)}.sidebar-logo{width:52px;height:52px;border-radius:10px;display:block;margin-bottom:10px}.sidebar-header h1{font-size:22px;font-weight:700;letter-spacing:.5px}.sidebar-header .subtitle{font-size:12px;color:var(--text-muted);display:block;margin-top:2px}.sidebar ul{list-style:none;padding:12px 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var(--border);border-radius:var(--radius);padding:14px}.help-example-title{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:#888;margin-bottom:10px}.help-example-row{display:flex;align-items:center;gap:6px;margin-bottom:6px;font-size:13px}.help-term{font-weight:600;color:var(--text-dark)}.help-arrow{color:#888}.help-translation{color:#1e40af}.help-lang{margin-left:auto;font-size:11px;color:#888;padding:1px 6px;background:#f0f2f5;border-radius:4px}.source-audio-player{width:100%;height:32px;margin-top:6px;border-radius:var(--radius)}.source-audio-player::-webkit-media-controls-panel{background:#f7f8fa}.dropdown-divider{height:1px;background:#eee;margin:4px 0}.toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:8px;max-width:400px}.toast{display:flex;align-items:center;gap:10px;padding:12px 16px;border-radius:var(--radius);box-shadow:0 4px 16px #00000026;font-size:13px;line-height:1.4;animation:toast-in .25s ease-out}@keyframes toast-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.toast-success{background:#d1fae5;color:#065f46;border-left:4px solid var(--success)}.toast-error{background:#fee2e2;color:#991b1b;border-left:4px solid var(--danger)}.toast-warning{background:#fef3c7;color:#92400e;border-left:4px solid var(--warning)}.toast-info{background:#dbeafe;color:#1e40af;border-left:4px solid #3b82f6}.toast-message{flex:1}.toast-dismiss{background:none;border:none;font-size:18px;cursor:pointer;color:inherit;opacity:.6;padding:0 2px;line-height:1}.toast-dismiss:hover{opacity:1}.stuck-warning{display:flex;align-items:center;gap:10px;padding:10px 16px;margin-bottom:16px;background:#fef3c7;border:1px solid #fcd34d;border-radius:var(--radius);font-size:13px;color:#92400e}.stuck-warning-icon{font-size:16px;flex-shrink:0}.processing-banner{display:flex;align-items:flex-start;gap:10px;padding:12px 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solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;width:100%}.reader-settings-row{display:flex;align-items:center;gap:8px}.reader-settings-label{font-size:11px;text-transform:uppercase;letter-spacing:.07em;color:#ffffff73;min-width:36px}.reader-settings-group{display:flex;align-items:center;gap:3px}.reader-settings-value{font-size:13px;min-width:36px;text-align:center;color:#ffffffa6}.reader-settings-btn--sm{padding:4px 10px;font-size:12px;font-weight:400;background:#ffffff12;border-color:#ffffff21}.reader-settings-btn--sm:hover{background:#ffffff2b}.reader-settings-btn--sm.active{background:#ffffff38;border-color:#ffffff73;font-weight:600}.reader-settings-btn--sm:disabled{opacity:.3;cursor:default}.reader-container{max-width:var(--reader-max-width, 720px);margin:0 auto;padding:40px 24px;width:100%;flex:1}.reader-loading{color:var(--reader-meta, #888);text-align:center;padding:48px 0}.reader-error{text-align:center;padding:64px 0}.reader-error h1{font-size:24px;margin-bottom:8px}.reader-error p{color:var(--reader-meta, #888);font-size:16px}.reader-body{font-size:var(--reader-font-size, 17px);line-height:1.85}.reader-chunk{margin-bottom:36px}.reader-text p{color:var(--reader-text, #2d2d2d);margin-bottom:1em}.reader-text p:last-child{margin-bottom:0}.reader-chunk-divider{height:1px;background:var(--reader-border, #e8e4df);margin:8px 0 0;opacity:.5}.reader-audio{display:block;width:100%;margin-top:14px;border-radius:6px;opacity:.85}.reader-footer{text-align:center;padding:24px;color:var(--reader-meta, #999);font-size:12px;border-top:1px solid var(--reader-border, #eee)}@media(max-width:600px){.reader-header-inner{padding:10px 16px}.reader-title{font-size:15px}.reader-container{padding:24px 16px}.reader-settings-panel{padding:8px 16px 12px;gap:8px 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