.privacy-note{background-color:var(--accent-bg, #eef6ff);border:1px solid var(--accent);border-radius:8px;padding:12px 16px;margin-bottom:20px;font-size:.95rem;color:#333;text-align:left}.upload-area{border:2px dashed var(--accent);padding:40px;margin-bottom:20px;border-radius:8px;cursor:pointer;color:var(--accent);text-align:center;font-size:1rem}.upload-area.hover{background-color:var(--accent-bg)}.upload-area.disabled{pointer-events:none;opacity:.5}#inputFile{display:none}#decodingArea{display:none;margin:20px auto;text-align:center}#decodingArea .spinner{display:inline-block;width:36px;height:36px;border:4px solid #e0e0e0;border-top-color:var(--accent);border-radius:50%;animation:ac-spin .8s linear infinite;vertical-align:middle;margin-right:12px}@keyframes ac-spin{to{transform:rotate(360deg)}}#decodingArea span:last-child{display:inline-block;vertical-align:middle;color:#333;font-size:.95rem}#errorArea{display:none;margin:0 0 20px;padding:12px 16px;background:#fdf2f2;border:1px solid #e57373;border-radius:8px;text-align:left;color:#c0392b;font-size:.9rem;line-height:1.7}#editor{display:none;text-align:left;background:#f9f9f9;border:1px solid #e0e0e0;border-radius:8px;padding:20px;margin-bottom:20px}#editor .file-info{font-size:.9rem;color:#555;margin:0 0 12px;word-break:break-all}.wave-wrap{position:relative;height:140px;border-radius:6px;overflow:hidden;touch-action:none;cursor:crosshair;user-select:none;-webkit-user-select:none;background:#f1f5f9}.wave-wrap canvas{display:block;width:100%;height:100%}.wave-handle{position:absolute;top:0;bottom:0;width:28px;margin-left:-14px;cursor:ew-resize;touch-action:none;z-index:2}.wave-handle .handle-bar{position:absolute;top:0;bottom:0;left:50%;width:4px;margin-left:-2px;background:var(--accent, #2a9d8f);border-radius:2px}.wave-handle .handle-grip{position:absolute;top:50%;left:50%;width:16px;height:16px;margin:-8px 0 0 -8px;background:var(--accent, #2a9d8f);border:2px solid #fff;border-radius:50%;box-shadow:0 1px 3px #0000004d}.wave-handle:focus{outline:none}.wave-handle:focus .handle-bar{box-shadow:0 0 0 2px #2a9d8f66}#playhead{display:none;position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:#e76f51;z-index:1;pointer-events:none}.wave-hint{font-size:.8rem;color:#888;margin:6px 0 16px}.time-controls{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-bottom:16px;font-size:.95rem;color:#333}.time-controls label{display:inline-flex;align-items:center;gap:6px;font-size:.95rem;color:#333}.time-controls input[type=text]{width:110px;padding:6px 8px;font-size:1rem;color:#333;border:1px solid #ccc;border-radius:4px;background:#fff;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}.time-controls .sel-len{font-size:.95rem;color:#555}.time-controls .sel-len strong{font-size:1.05rem;color:#2c3e50}.play-controls{margin-bottom:16px}#playBtn{padding:10px 24px;font-size:1rem;border:1px solid var(--accent);border-radius:4px;background:#fff;color:var(--accent);cursor:pointer;transition:background-color .2s}#playBtn:hover{background:var(--accent-bg, #eef6ff)}.option-controls{display:flex;flex-wrap:wrap;gap:8px 24px;margin-bottom:16px}.option-controls label{display:inline-flex;align-items:center;gap:6px;font-size:.95rem;color:#333;cursor:pointer}.export-controls{border-top:1px solid #e0e0e0;padding-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px}.export-controls .format-select{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;font-size:.95rem;color:#333}.export-controls .format-select label{display:inline-flex;align-items:center;gap:4px;cursor:pointer;font-size:.95rem;color:#333}#bitrateWrap{font-size:.95rem;color:#333}#bitrateWrap.disabled{opacity:.4}#bitrateSelect{padding:5px 8px;font-size:.95rem;color:#333;border:1px solid #ccc;border-radius:4px;background:#fff;margin-left:4px}#exportBtn{padding:10px 28px;font-size:1rem;border:none;border-radius:4px;background:var(--accent);color:#fff;cursor:pointer;transition:background-color .2s}#exportBtn:hover{background:var(--accent-hover)}#exportBtn:disabled{background:#ccc;cursor:not-allowed}#progressArea{display:none;margin-top:16px}#progressArea .progress-track{height:10px;background:#e2e8f0;border-radius:5px;overflow:hidden}#progressArea .progress-bar{height:100%;width:0%;background:var(--accent, #2a9d8f);transition:width .15s linear}#progressArea p{margin:6px 0 0;font-size:.9rem;color:#555}#resultArea{display:none;margin-top:20px;padding:16px;background:#fff;border:1px solid #e0e0e0;border-radius:8px;text-align:center}#resultArea .result-name{font-size:.95rem;font-weight:700;color:#2c3e50;margin:0 0 10px;word-break:break-all}#resultArea audio{display:block;width:100%;max-width:480px;margin:0 auto 14px}#downloadLink{display:inline-block;padding:10px 28px;font-size:1rem;border-radius:4px;background:var(--accent);color:#fff!important;text-decoration:none;cursor:pointer}#downloadLink:hover{background:var(--accent-hover)}@media (max-width: 600px){.upload-area{padding:28px 16px}#editor{padding:14px}.export-controls{align-items:stretch;flex-direction:column}#exportBtn{width:100%}}